Consulta: "Control"
Registros recuperados: 19.883
Máximo de registros impressos: 2500
Data/hora: 02/05/2024 09:36:42

100% Organic Feed for Poultry – Results of Feed Trials in the UK
Provedor de dados: 21
Autores: Gerrard, Catherine L.; Smith, Jo; Nelder, Rebecca; Clements, Ruth; Pearce, Bruce; Bright, Ashleigh.
Current regulations for organic monogastric production systems permit feed ingredients of non-organic origin, primarily due to concerns about meeting the demand for the essential amino acids methionine and lysine. However, 100 % organic diets will become compulsory in the EU from 1st January 2015, so there is a need to develop feeds which will supply the required level of nutrients and support high animal health and welfare. This paper reports on feeding trials carried out with broilers in the UK to investigate the impact of three 100 % organic diets: a control diet with globally sourced ingredients, a diet based on locally sourced (i.e. within Europe) organic ingredients, and a diet based on locally sourced organic ingredients and algae. The results of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Feeding and growth; Health and welfare.
Ano: 2014
URL: http://orgprints.org/23497/1/23497%20Gerrard%20Smith%20ICOPP%20poultry%20in%20final_MM.pdf

11-amino-5-N-methyl-7-fluorine- quindoline derivatives: The Potential Anti-angiogenic Agents Targeting G-quadruplex Structure in Vascular Endothelial Cell Growth Factor
Provedor de dados: 17
Autores: Tian-miao Ou; Yu-jing Lu; Xiao-dong Wang; Zeng-yun An; Yan-ping Li; Zhi-shu Huang; Lian-quan Gu.
Vascular endothelial growth factor (VEGF), a pluripotent cytokine and angiogenic growth factor, plays crucial roles in embryonic development and tumour progression, and is over-expressed in many types of cancer and generally associated with tumour progression and survival rate. The polypurine/polypyrimide sequence located upstream (-89 to -43) of the promoter region of the human VEGF gene that can form specific G-quadruplex structures and raise the possibility for transcriptional control of the VEGF gene by G-quadruplex ligands. In the present study, we investigated the interaction between the 5-N-methyl-7-fluorine-quindoline derivatives (11-amino-5-N-methyl-7-fluorine- quindoline derivatives) and the G-rich sequence in VEGF&amp;#x27;s promoter and the...
Tipo: Manuscript
Palavras-chave: Cancer.
Ano: 2008
URL: http://precedings.nature.com/documents/1946/version/1

1，2-ジメチルヒドラジン投与マウスにおける大腸腺腫発症に与える食餌性ナガイモの効果
Provedor de dados: 19
Autores: 木下, 幹朗; 柚木, 恵太; 得字, 圭彦; 川原, 美香; 大庭, 潔; 弘中, 和憲; 大西, 正男; Kinoshita, Mikio; Yunoki, Keita; Tokuji, Yoshihiko; Kawahara, Mika; Ohba, Kiyoshi; Hironaka, Kazunori; Ohnishi, Masao.
ナガイモのガンに対する機能性を探索する目的で， 1,2- ジメチルヒドラジン投与マウスにおける大腸腺腫(ACF) 発症に与える食餌性ナガイモ粉末の効果を検証した.ナガ イモ粉末をAIN-93G標準飼料のコーンスターチ部分に 100%または50%置き換えて投与したところ，大腸腺腫の 発症が有意に抑制されたまた，加熱および非加熱の生ナ ガイモ粉末ともに同様の効果が認められた. DNAマイク ロアレイを用いて大腸での遺伝子の異同を調べたところ， ナガイモ投与群ではアポ卜ーシスを誘導する遺伝子群の増加が認められた.To clarify the physiological effects of dietary Chinese yam (Nagaimo) on colon cancer in vivo， the effects of dietary Nagaimo on 1,2-dimethylhydrazine (DMH)-induced aberrant crypt foci (ACF) formation in the large intestine of mice were investigated. After 8 weeks of feeding raw or boiled Nagaimo and DMH administration，DMH-induced ACF formation was found to be significantly suppressed in the large intestines of all mice. DNA microarray analysis showed that levels of apoptosis-inducing gene expression in...
Palavras-chave: ナガイモ 大腸腺腫 大腸ガン 1，2-ジメチルヒドラジン DNAマイクロアレイ Chinese yam (Nagaimo) aberrant crypt foci colon cancer 1; 2-dimethylhydrazine DNA microarray.
Ano: 2008
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2706

131I-induced changes in rat thyroid gland function
Provedor de dados: 56
Autores: Torlak,V.; Zemunik,T.; Modun,D.; Capkun,V.; Pesutic-Pisac,V.; Markotic,A.; Pavela-Vrancic,M.; Stanicic,A.
Therapeutic doses of 131I administered to thyrotoxic patients may cause thyroid failure. The present study used a rat model to determine thyroid function after the administration of different doses of 131I (64-277 µCi). Thirty male Fisher rats in the experimental group and 30 in the control group (untreated) were followed for 6 months. The animals were 4 months old at the beginning of the experiment and were sacrificed at an age of 9 months. Hormone concentration was determined before 131I administration (4-month-old animals) and three times following 131I administration, when the animals were 7, 8, and 9 months old. The thyroid glands were removed and weighed, their volume was determined and histopathological examination was performed at the end of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thyroid gland; 131I; Hormones; Histopathology; T3; T4; TSH.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000800009

15N-labeled nitrogen from green manure and ammonium sulfate utilization by the sugarcane ratoon
Provedor de dados: 63
Autores: Ambrosano,Edmilson José; Trivelin,Paulo Cesar Ocheuze; Cantarella,Heitor; Ambrosano,Gláucia Maria Bovi; Schammass,Eliana Aparecida; Muraoka,Takashi; Rossi,Fabrício.
Legumes as green manure are alternative sources of nitrogen (N) for crops and can supplement or even replace mineral nitrogen fertilization due to their potential for biological nitrogen fixation (BNF). The utilization of nitrogen by sugarcane (Saccharum spp.) fertilized with sunn hemp (Crotalaria juncea L.) and ammonium sulfate (AS) was evaluated using the 15N tracer technique. N was added at the rate of 196 and 70 kg ha-1 as 15Nlabeled sunn hemp green manure (SH) and as ammonium sulfate (AS), respectively. Treatments were: (i) Control; (ii) AS15N; (iii) SH15N + AS; (iv) SH15N; and (v) AS15N + SH. Sugarcane was cultivated for five years and was harvested three times. 15N recovery was evaluated in the two first harvests. In the sum of the three harvests,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum spp.; Brazil; Sunn hemp; Isotope technique.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000300014

1977 Corn and sorghum insects annual report
Provedor de dados: 106
Autores: Boonsom Meksongsee; Panya Poonyathawon; Ocha Prachuabmoh; Auranuj Kongkanjana; Arunee Wongkobrat; Malee Chawanapong; Uthai Sangkasuwan; Watchara Wongkumhang; Thalearngsak Weerawooth.
11 tables
Palavras-chave: Corn; Maize; Sorghum; Sweet corn; Pest insects; Borers; Chilo sacchariphagus; Aphids; Armyworms; Mythimna separata; Ostrinia furnacalis; Life cycle; Infestation; Insecticides; Pesticides; Insect control; Yields; Losses; ข้าวโพด; ข้าวฟ่าง; หนอนเจาะลำต้น; เพลี้ยอ่อน; หนอนเจาะฝัก; แมลงที่เป็นประโยชน์; สารกำจัดแมลง.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3930

1-Methylcyclopropene delays tomato fruit ripening
Provedor de dados: 75
Autores: Moretti,Celso Luiz; Araújo,Alessandra L.; Marouelli,Waldir Aparecido; Silva,Washington Luiz C.
Tomato (Lycopersicon esculentum Mill.) fruits, cv. Santa Clara, were harvested at the breaker stage from commercial fields in Brazlândia, Brazil, to investigate the ability of 1-methylcyclopropene (1-MCP) to retard tomato fruit ripening. Fruit without external blemishes were graded for size (diameter = 80±5 mm) and mass (m = 130±10 g), placed inside hermetically sealed boxes, and 1-MCP was applied for 12 hours (T = 22±1°C; RH = 80-85%) at four different concentrations: 0 (control), 250, 500 and 1000 mL.L-1. Fruits were held at ambient conditions (T = 23±2°C; RH 80-85%) for 2 days and then stored inside a cold room (T = 20±1°C; RH = 85-95%). Every 3 days, during a 15-day period, fruits were analyzed for firmness, total soluble solids, titratable acidity,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Acidity; Color; Carotenoids; Ethylene; Firmness; Postharvest.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362002000400030

2007 Supermarket Panel Report
Provedor de dados: 31
Autores: Chung,   Wonho; Kinsey,   Jean D.; Seltzer,   Jonathan M.; Yeap,   Clarissa A.
Replaced with revised version of paper 12/16/10.
Tipo: Report
Palavras-chave: Agribusiness; Industrial Organization.
Ano: 2010
URL: http://purl.umn.edu/95767

2,3,8-Trisubstituted Quinolines with Antimalarial Activity
Provedor de dados: 42
Autores: MARTINEZ,PABLO D.G.; KRAKE,SUSANN H.; POGGI,MAITIA L.; CAMPBELL,SIMON F.; WILLIS,PAUL A.; DIAS,LUIZ C.
ABSTRACT Combination therapy drugs are considered a fundamental way to control malaria as it mimimizes the risk of emergence of resistance to the individual partner drugs. Consequently, this type of therapy constitutes a driving force for the discovery of new drugs with different modes of action, since this will provide options for combining different drugs to achieve the optimum antimalarial treatment. In this context, a 2,3,8-trisubstitued quinoline compound was found in a high throughput screen (HTS) to show an excellent inhibition of P. falciparum NF54 (IC50 = 22 nM) and low cytotoxicity. We performed a detailed evaluation of the substituents to improve the metabolic stability and solubility liabilities of the original hit and identified derivatives...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimalarial activity; Trisubstituted quinoline; SAR; Resistance.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000301215

2(5H)-Furanone: a prospective strategy for biofouling-control in membrane biofilm bacteria by quorum sensing inhibition
Provedor de dados: 58
Autores: Ponnusamy,Kannan; Paul,Diby; Kim,Young Sam; Kweon,Ji Hyang.
Biofouling of membranes demands costly periodic cleaning and membrane replacement. A sustainable and environmentally friendly solution for maintenance is not available and would be of great interest for many purposes including economical. As complex biofilm formation by environmental strains is the major cause of biofouling and biofilm formation in most cases are controlled by N-Acylhomoserine lactone (AHL)mediated Quorum Sensing (QS). An effort was made to understand the appropriateness of 2(5H)-furanone, to use against biofouling of membranes. QS inhibition activity by 2(5H)-furanone was studied using bioindicator strains and known AHLs of different acyl chain lengths. The biofilm inhibition was studied by growth analysis on polystyrene plate of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Furanone; Biofilm; Water treatment; Quorum sensing; N-Acyl homoserine lactone.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100032

3-D active source tomography around Simeulue Island offshore Sumatra: Thick crustal zone responsible for earthquake segment boundary
Provedor de dados: 5
Autores: Tang, Genyang; Barton, Penny J.; Mcneill, Lisa C.; Henstock, Timothy J.; Tilmann, Frederik; Dean, Simon M.; Jusuf, Muhammad D.; Djajadihardja, Yusuf S.; Permana, Haryadi; Klingelhoefer, Frauke; Kopp, Heidrun.
We present a detailed 3-D P-wave velocity model obtained by first-arrival travel-time tomography with seismic refraction data in the segment boundary of the Sumatra subduction zone across Simeulue Island, and an image of the top of the subducted oceanic crust extracted from depth-migrated multi-channel seismic reflection profiles. We have picked P-wave first arrivals of the air-gun source seismic data recorded by local networks of ocean-bottom seismometers, and inverted the travel-times for a 3-D velocity model of the subduction zone. This velocity model shows an anomalous zone of intermediate velocities between those of oceanic crust and mantle that is associated with raised topography on the top of the oceanic crust. We interpret this feature as a...
Tipo: Text
Palavras-chave: Active-source tomography; Sumatra subduction zone; Segmentation; Plate interface.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00137/24834/22916.pdf

3-D Structural Changes in Subchondral Bone and the Effect of Bisphosphonate Intervention in Early Osteoarthritis
Provedor de dados: 77
Autores: Chen,Hainan; Dong,Qirong; Jiang,Wei.
This study aims to observe the 3-D structural changes in subchondral bone and the effects of bisphosphonate intervention in the early unsteady stage of the knee joint. Sixty healthy male New Zealand white rabbits were divided into the model group (n= 24), the bisphosphonate (Bis) group (n= 24), and the control group (n= 12). The rabbits' right knees were used to evaluate the structural changes. The Bis group received subcutaneous injections of bisphosphonate, while the model and control groups received subcutaneous injections of isotonic saline solution. After surgical preparation, the knee joint was dissected for Micro-CT examination, and the Micro-CT results were compared using ANOVA. In the fourth postoperative week, the bone volume fraction (BVF),...
Tipo: Journal article
Palavras-chave: Osteoarthritis; Subchondral bone; 3D structure; Micro-CT.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100042

6 weeks consumption of pure fresh coconut milk caused up-regulation of eNOS and CSE protein expression in middle-aged male rats
Provedor de dados: 60
Autores: Jansakul,Chaweewan; Naphatthalung,Jomkarn; Pradab,Sakda; Yorsin,Somruedee; Kanokwiroon,Kanyanatt.
Coconut milk (CCM) has been an important cooking ingredient in the Asia-Pacific region since ancient time. Due to its high content of saturated fatty acids, it has been considered atherogenic. We have tested if chronic consumption of fresh coconut milk by middle-aged male rat affects vascular function, plasma glucose and lipid profiles. Compared to control, CCM caused lower maximal contraction to phenylephrine of thoracic aortic rings and increased relaxation to acetylcholine that was abolished by N G-nitro-L-arginine (L-NA) or disruption of the endothelium. DL-propargylglycine caused slight increase in baseline tension of L-NA treated aortic rings of CCM-treated rats and produced higher contractile response of the aortic rings to low concentrations of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coconut milk; NO. H2S; Plasma glucose; Thoracic aorta.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000300608

6-Gingerol inhibits hair cycle via induction of MMP2 and MMP9 expression
Provedor de dados: 42
Autores: HOU,CHUN; MIAO,YONG; JI,HANG; WANG,SUSHENG; LIANG,GANG; ZHANG,ZHIHUA; HONG,WEIJIN.
ABSTRACT 6-Gingerol is the major active constituent of ginger. In the current study, we aimed to investigate the mechanisms underlying the effects of 6-Gingerol on hair growth. Mice were randomly divided into five groups; after hair depilation (day 0), mice were treated with saline, or different concentrations of 6-Gingerol for 11 days. The histomorphological characteristics of the growing hair follicles were examined after hematoxylin and eosin staining. The results indicated that 6-Gingerol significantly suppressed hair growth compared with that in the control group. And choose the concentration of 6-Gingerol at 1 mg/mL to treated with mice. Moreover, 6-Gingerol (1 mg/mL) significantly reduced hair re-growth ratio, hair follicle number, and hair follicle...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MMP2; MMP9; 6-Gingerol; Hair growth.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602707

-866G/A and Ins/Del polymorphisms in the UCP2 gene and diabetic kidney disease: case-control study and meta-analysis
Provedor de dados: 74
Autores: Dieter,Cristine; Assmann,Taís Silveira; Lemos,Natália Emerim; Massignam,Eloísa Toscan; Souza,Bianca Marmontel de; Bauer,Andrea Carla; Crispim,Daisy.
Abstract Uncoupling protein 2 (UCP2) decreases reactive oxygen species (ROS). ROS overproduction is a key contributor to the pathogenesis of diabetic kidney disease (DKD). Thus, UCP2 polymorphisms are candidate risk factors for DKD; however, their associations with this complication are still inconclusive. Here, we describe a case-control study and a meta-analysis conducted to investigate the association between UCP2 -866G/A and Ins/Del polymorphisms and DKD. The case-control study comprised 385 patients with type 1 diabetes mellitus (T1DM): 223 patients without DKD and 162 with DKD. UCP2 -866G/A (rs659366) and Ins/Del polymorphisms were genotyped by real-time PCR and conventional PCR, respectively. For the meta-analysis, a literature search was conducted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: UCP2; Polymorphisms; Diabetic kidney disease.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400101

A 1991 social accounting matrix (SAM) for Zimbabwe
Provedor de dados: 31
Autores: Thomas,   Marcelle; Bautista,   Romeo M.
"January 1999." "Macro Economic Reforms and Regional Integration in Southern Africa (MERRISA)". Includes bibliographical references (p. 30-31).
Tipo: Working or Discussion Paper
Palavras-chave: Macroeconomics; Social accounting -- Zimbabwe; Consumer/Household Economics.
Ano: 1999
URL: http://purl.umn.edu/97556

A 1995 social accounting matrix for Zambia
Provedor de dados: 31
Autores: Hausner,   Ulrich.
"September 1999." "MERRISA: Macro Economic Reforms and Regional Integration in Southern Africa." Includes bibliographical references (p. 32-34).
Tipo: Working or Discussion Paper
Palavras-chave: Social accounting--Zambia; Macroeconomics--Models--Zambia; Agriculture--Economic aspects; Financial Economics.
Ano: 1999
URL: http://purl.umn.edu/97525

A 2-year cropping system for intra-row weed control in row crops
Provedor de dados: 21
Autores: Melander, Senior scientist Bo.
A biennial cropping system for weed control in vegetables is presented. The system provides a significant reduction in weed emergence in row crops.
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 1999
URL: http://orgprints.org/1613/1/BASEL_abstract1.pdf

A 5.3‐million‐year history of monsoonal precipitation in northwestern Australia
Provedor de dados: 5
Autores: Stuut, Jan‐berend W.; De Deckker, Patrick; Saavedra‐pellitero, Mariem; Bassinot, Franck; Drury, Anna‐joy; Walczak, Maureen H.; Nagashima, Kana; Murayama, Masafumi.
New proxy records from deep‐sea sediment cores from the northwestern continental margin of Western Australian reveal a 5.3 million‐year (Ma) history of aridity and tropical‐monsoon activity in northwestern Australia. Following the warm and dry early Pliocene (~5.3 Ma), the northwestern Australian continent experienced a gradual increase in humidity peaking at about 3.8 Ma with higher than present‐day rainfall. Between 3.8 and about 2.8 Ma, climate became progressively more arid with more rainfall variability. Coinciding with the onset of the northern hemisphere glaciations and the intensification of the northern hemisphere monsoon, aridity continued to increase overall from 2.8 Ma until today, with greater variance in precipitation and an increased...
Tipo: Text
Palavras-chave: Paleoclimate; Monsoon; Australia; Runoff; Pliocene; Quaternary.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00502/61384/65035.pdf

A 6600 year earthquake history in the region of the 2004 Sumatra-Andaman subduction zone earthquake
Provedor de dados: 5
Autores: Patton, Jason R.; Goldfinger, Chris; Morey, Ann E.; Ikehara, Ken; Romsos, Chris; Stoner, Joseph; Djadjadihardja, Yusuf; Udrekh,; Sri Ardhyastuti,; Gaffar, Eddy Zulkarnaen; Vizcaino, Alexis.
In order to investigate the possibility of a long-term paleoseismic history from offshore sedimentary records in Sumatra, we collected 144 deep-sea sedi-ment cores in the trench and in lower slope piggyback basins of the Sumatra accretionary prism. We used multibeam bathymetry and seismic reflection data to develop an understanding of catchment basins, turbidity current pathways, and depositional styles, as well as to precisely locate our gravity cores, piston cores, Kasten cores, and multicores. We use detailed physical property data, including computed tomographic X-ray, gamma density, magnetic susceptibility, grain-size analysis, faunal analysis, and smear slides, to evaluate the turbidite stratigraphy and sedimentology at each site. We use radiocarbon...
Tipo: Text
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00351/46229/46162.pdf

A ABERTURA COMERCIAL E O SETOR LÁCTEO BRASILEIRO: ALGUMAS REFLEXÕES
Provedor de dados: 31
Autores: Cruz,   Jose Claudio Freitas; Crispim,   Joao Paulo Carvalho.
Durante quase 45 anos, o governo interveio no setor lácteo através do tabelamento de preços. Esse processo foi danoso a toda a cadeia agroindustrial do leite, uma vez que os agentes não tinham estímulos a investir em melhorias na produção e qualidade. A exclusão se acentuou após a abertura comercial no início da década de 90, quando os preços passaram a ser determinados pela oferta e demanda. O leite, que já apresentava tendência de queda nos preços, passou a enfrentar forte concorrência com o produto estrangeiro mais competitivo e altamente subsidiado no país de origem, complicando ainda mais a situação do produtor. Vários fatores contribuíram para a queda da rentabilidade da produção: o aumento dos custos e a queda no preço têm pressionado as margens de...
Tipo: Conference Paper or Presentation
Palavras-chave: Liberalização  comercial; Redução dos Preços Recebidos; Aumento dos custos; Price control of prices; Commercial opening; Fall in the received prices; Increase of the production costs; Agricultural and Food Policy; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/113178

A AGROINDÚSTRIA DE ALIMENTOS DERIVADOS DE CACAU NO NORDESTE BRASILEIRO
Provedor de dados: 31
Autores: Carneiro,   Wendell Marcio Araujo; Brainer,   Maria Simone de Castro Pereira; Santos,   Jose Ailton Nogueira Dos; Souza,   Gilzenor Satyro De; Silva,   Carlos Enrique Gama E.
O objetivo deste artigo é caracterizar o setor agroindustrial de alimentos derivados de cacau no Nordeste Brasileiro. O trabalho foi desenvolvido com base na metodologia de pesquisa descritiva e explicativa, focado na identificação das características e nas inter-relações entre os elos dessa atividade econômica no Nordeste. A agroindústria de derivados de cacau no Nordeste tem se expandido e apresentado maior integração com as cadeias produtivas do setor rural. Porém, o fortalecimento do setor agroindustrial depende, ainda, do fornecimento de matérias-primas com qualidade e regularidade; estabelecimento, disseminação e fiscalização de controles de qualidade e de normas e padrões sanitários; profissionalização de dirigentes nas áreas administrativas e de...
Tipo: Conference Paper or Presentation
Palavras-chave: Agroindústria; Cacau; Nordeste Brasileiro; Agro-industry; Cacao; Brazilian Northeast; Agribusiness; Crop Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/106075

A alta qualidade da semente de soja: fator importante para a produção da cultura.
Provedor de dados: 14
Autores: KRZYZANOWSKI, F. C.; FRANÇA-NETO, J. B.; HENNING, A. A.
bitstream/item/177391/1/CT136-online.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Soja; Semente; Controle de Qualidade; Soybeans; Seeds; Quality control.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1091765

A ascensão de uma doença.
Provedor de dados: 14
Autores: FERNANDES, F. T.; OLIVEIRA, E. de.
bitstream/item/58123/1/Ascensap-doenca.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Mancha cercospora; Controle; Sintomas; Control; Disease.; Cercospora Sorghi; Doença; Fungo; Milho.; Cercospora zeae-maydis.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/484075

A Basic Approach to Implement Guided Tractor Control
Provedor de dados: 111
Autores: R. Freimann.
Within a continuous development of mobile agricultural machinery the application and further introduction of electronic controls is offering the fare most potential for working processes optimization. The article gives an introduction to tractor and implement controls, especially targeting implement guided tractor control, underlined with two executed examples for this advanced control design. A structured development model and basic knowledge on safe and robust control loop set-ups were developed. Potential conflict scenarios within the multi master control system of driver, tractor, implement and independently pre-planned task control were identified and solved by arbitrational state strategies. The two exemplarily executed demonstration examples utilize...
Ano: 1969
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/934

A Bayesian analysis of the parasitic ecology in Jenynsia multidentata(Pisces: Anablepidae)
Provedor de dados: 76
Autores: Montes,Martin M.; Martorelli,Sergio R.
ABSTRACT Jenynsia multidentata Jenyns, 1842 (one-sided livebearers) are euryhaline viviparous fish of small size, used in the laboratory experiment, important as resource for biological control of mosquito’s larva and a key species to recover eutrophic lakes. Works have been published dealing with parasite biodiversity of this host, but little has been studied about the parasite community ecology. From early 2009 to ends of 2010 specimens of J. multidentata were collected from two places, the Salado Relief Channel (S.R.C.) on Samborombón Bay and the Sauce Chico River near to the city of Bahia Blanca (B.B.). All fish were sexed, measured and grouped into sizes/age classes. The fishes from both sites harbored 16 parasitic species: nine digenean, one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Samborombon Bay; Bahia Blanca; Salado River Relief Channel; Low Sauce River.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212017000100222

A BGC-Argo Guide: Planning, Deployment, Data Handling and Usage
Provedor de dados: 5
Autores: Bittig, Henry C.; Maurer, Tanya L.; Plant, Joshua N.; Schmechtig, Catherine; Wong, Annie P. S.; Claustre, Hervé; Trull, Thomas W.; Udaya Bhaskar, T. V. S.; Boss, Emmanuel; Dall’olmo, Giorgio; Organelli, Emanuele; Poteau, Antoine; Johnson, Kenneth S.; Hanstein, Craig; Leymarie, Edouard; Le Reste, Serge; Riser, Stephen C.; Rupan, A. Rick; Taillandier, Vincent; Thierry, Virginie; Xing, Xiaogang.
The Biogeochemical-Argo program (BGC-Argo) is a new profiling-float-based, ocean wide, and distributed ocean monitoring program which is tightly linked to, and has benefited significantly from, the Argo program. The community has recommended for BGC-Argo to measure six additional properties in addition to pressure, temperature and salinity measured by Argo, to include oxygen, pH, nitrate, downwelling light, chlorophyll fluorescence and the optical backscattering coefficient. The purpose of this addition is to enable the monitoring of ocean biogeochemistry and health, and in particular, monitor major processes such as ocean deoxygenation, acidification and warming and their effect on phytoplankton, the main source of energy of marine ecosystems. Here we...
Tipo: Text
Palavras-chave: Ocean observation; Ocean biogeochemical cycles; Sensors; Carbon cycle; Ocean optics; Best practices; Argo.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00512/62344/66607.pdf

A bioassay method for black flies (Diptera: Simuliidae) using larvicides
Provedor de dados: 82
Autores: Araújo-Coutinho,Carlos J.P.C.; Figueiró,Ronaldo; Viviani,Andréia P.; Nascimento,Érika S.; Cavados,Clara F.G.
This note presents an alternative method for bioassays using black fly larvae, with which we intend to provide a simpler but effective tool for accessing data on larvicide efficacy.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Efficacy; Technique.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000300022

A Bioeconomic Analysis of Protected Area use in Fisheries Management
Provedor de dados: 31
Autores: Greenville,   Jared W.; MacAulay,   T. Gordon.
The use of protected areas as a fishery management tool has been suggested as a hedge against management failures and variation in harvests. A stochastic bioeconomic model of a two-species fishery will be used to test the performance of protected areas as a management tool in a fishery with heterogenous environments. Protected areas are analysed under density-dependent and sink-source dispersal relationships between environments within the fishery. Differing levels of management control over fishery resource extraction are analysed. The model is applied to Manning Bioregion in NSW. The focus of the study is placed on the biological and institutional characteristics that yield benefits to the fishery.
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/21469

A bio-economic evaluation of the American Foulbrood (AFB) control program in Western Australia
Provedor de dados: 31
Autores: Ghose,   Ananda; Hawkins,   Chris.
American foulbrood (AFB) is considered the most significant brood disease of bees in Western Australia. The Department of Agriculture of Western Australia (DAWA) provides assistance to apiarists by way of quarantine and surveillance measures under the AFB control program. A bio-economic evaluation was considered necessary by the department for setting future policy direction. As a way forward, a number of risk analysis scenarios were simulated to estimate the future prevalence rate of AFB in the absence of the present program. This epidemiological investigation was complemented by an economic evaluation which identifies the extent of benefit that flows through to direct beneficiaries. The paper provides a comprehensive bio-economic analysis and suggests...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 2004
URL: http://purl.umn.edu/58449

A bioeconomic model for determining the optimal response to a new weed incursion in Australian cropping systems
Provedor de dados: 31
Autores: Jayasuriya,   Rohan T.; Jones,   Randall E.
Invasions by non-indigenous plant species pose serious economic threats to Australian agricultural industries. When an invasion is discovered a decision has to be made as to whether to attempt to eradicate it, contain it or do nothing. These decisions should be based on long term benefits and costs. This paper describes a bioeconomic simulation framework with a mathematical model representing weed spread linked to a dynamic programming model to provide a means of determining the economically optimal weed management strategies over time. The modelling framework is used to evaluate case study invasive weed control problems in the Australian grains industry.
Tipo: Conference Paper or Presentation
Palavras-chave: Weeds; Incursion; Bioeconomic model; Crop Production/Industries; Research Methods/ Statistical Methods.
Ano: 2008
URL: http://purl.umn.edu/6015

A Bioeconomic Model of the Soybean Aphid Treatment Decision in Soybeans
Provedor de dados: 31
Autores: Olson,   Kent D.; Badibanga,   Thaddee Mutumba.
Since its first detection in the North Central region in July 2000, the soybean aphid (Aphis glycines Matsamura) has caused considerable loss in soybean (Glycine max L.) yield, bean quality, and producer income.  Discovered first in Wisconsin and then in adjoining states, it is currently distributed in 21 US states and parts of Canada. In 2003, over 42 million acres of soybean in the North Central US were infested and over 7 million acres were treated with insecticides to control soybean aphid (Landis et al. 2003). Populations exceeding 24,000 aphids per plant and 40% losses in seed yield have been reported (DiFonzo &amp; Hines 2002). Even prior to the outbreak of 2003, the Soybean Strategic Pest Management Plan identified soybean aphid as one of the key...
Tipo: Conference Paper or Presentation
Palavras-chave: Soybean aphid; Bioeconomic model; Farm Management.
Ano: 2005
URL: http://purl.umn.edu/19237

A biolistic process for in vitro gene transfer into chicken embryos
Provedor de dados: 56
Autores: Ribeiro,L.A.; Mariani,P.D.S.C.; Azevedo,J.L.; Rech,E.L.; Schmidt,G.S.; Coutinho,L.L.
Chicken embryos kept in culture medium were bombarded using a high helium gas pressure biolistic device. To optimize the factors that affect transformation efficiency, the lacZ gene under control of the human cytomegalovirus immediate early enhancer/promoter was used as a reporter gene. There was an inverse relationship between survival rate and transformation efficiency. The best conditions obtained for high embryo survival and high transformation efficiency were achieved with 800 psi helium gas pressure, 500 mmHg vacuum, gold particles, an 8 cm DNA-coated microparticle flying distance to the embryo and embryo placement 0.5 cm from the center of the particle dispersion cone. Under these conditions, transformation efficiency was 100%, survival rate 25% and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biolistic process; Chicken embryo; Gene transfer; SS-galactosidase; Green fluorescent protein; GFP.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000900003

A biomolecular proportional integral controller based on feedback regulations of protein level and activity
Provedor de dados: 5
Autores: Mairet, Francis.
Homeostasis is the capacity of living organisms to keep internal conditions regulated at a constant level, despite environmental fluctuations. Integral feedback control is known to play a key role in this behaviour. Here, I show that a feedback system involving transcriptional and post-translational regulations of the same executor protein acts as a proportional integral (PI) controller, leading to enhanced transient performances in comparison with a classical integral loop. Such a biomolecular controller-which I call a level and activity-PI controller (LA-PI)-is involved in the regulation of ammonium uptake by Escherichia coli through the transporter AmtB. The P-II molecules, which reflect the nitrogen status of the cell, inhibit both the production of...
Tipo: Text
Palavras-chave: Homeostasis; Perfect adaptation; Regulatory motif; Transcriptional and post-translational regulations.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00434/54598/55968.pdf

A BIOTIC CONTROL PERSPECTIVE ON NITRATE CONTAMINATION OF GROUNDWATER FROM AGRICULTURAL PRODUCTION
Provedor de dados: 31
Autores: Erickson,   Jon D.; Schlapfer,   Felix.
Agronomists consider the continuity and nutrient capturing properties of cover crops as important determinants of nutrient cycling in agricultural systems.  Managing for these biotic control functions can help limit nutrient loss and groundwater contamination between main crop harvests.  This simulation study highlights the potential role of cover crop management in a welfare economics framework.  The objective is to find the optimal combination of nutrient input to the main crop, the extent of off-season cover crops, and crop functional diversity to maximize the sum of benefits from agricultural production and groundwater protection.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 2001
URL: http://purl.umn.edu/31422

A bioüzemanyag-gyártás nemzetközi összefüggései
Provedor de dados: 31
Autores: Popp,   Jozsef.
A dráguló olajár „felszínre hozta” a fosszilis energiahordozók környezetbarát energiahordozókkal való kiváltásának problémáját. Az olajkészletek korlátozottsága mellett a bizonytalan kitermelés és a folyamatosan növekvő árak a bioüzemanyagok felé irányítják a politikai döntéshozók és a befektetők figyelmét. Az olajimportőr országoknak a bioüzemanyag-gyártás nyersanyagainak hazai termelése lehetővé teszi importköltségeik visszafogását, az üvegházhatást okozó gázok kibocsátásának csökkentését, valamint a mezőgazdasági termelők jövedelem-színvonalának javítását. A bioüzemanyagok elterjedése ugyanakkor enyhíti a kapacitása határán dolgozó olajfinomító ipar üzemanyag-ellátási terheit is, ami jelentős mértékben hozzájárul(t) az üzemanyagárak emelkedéséhez. Ma...
Tipo: Journal Article
Palavras-chave: Bioüzemanyag; Közlekedés; Környezetvédelem; Energiaellátás; Élelmiszer-termelés; Biofuel; Transportation; Environment; Energy supply; Food production; Agricultural and Food Policy; Land Economics/Use.
Ano: 2007
URL: http://purl.umn.edu/57723

A brain microdialysis study on 5-HT release in freely moving rat lines selectively bred for differential 5-HT1A receptor function
Provedor de dados: 56
Autores: Gonzalez,L.E.; Parada,M.A.; Tucci,S.; Teneud,L.; Overstreet,D.H.; Hernandez,L.
Breeding for high and low hypothermic responses to systemic administration of a serotonin1A (5-HT1A) receptor agonist (8-hydroxy-2-(di-n-propylamino)tetralin, 8-OH-DPAT) has resulted in high DPAT-sensitive (HDS) and low DPAT-sensitive (LDS) lines of rats, respectively. These lines also differ in several behavioral measures associated with stress. In the present microdialysis study we observed that basal 5-HT concentrations in the prefrontal cortex and dorsal hippocampus did not differ significantly between HDS and LDS rats. Thus, behavioral differences between the HDS and LDS lines might not be attributed to differences in basal 5-HT release. However, both lines had lower basal levels of 5-HT release than their randomly bred control group (random...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brain microdialysis; Serotonin; 5-HT1A rat lines; Fenfluramine; 8-OH-DPAT.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000200014

A Brazilian Bacillus thuringiensis strain highly active to sugarcane borer Diatraea saccharalis (Lepidoptera: Crambidae)
Provedor de dados: 58
Autores: Gitahy,Patrícia de Medeiros; Souza,Marlene Teixeira de; Monnerat,Rose Gomes; Arrigoni,Enrico de Beni; Baldani,José Ivo.
The control of the major sugarcane pest, Diatraea saccharalis, is limited by the stem location of the caterpillar. As part of a long-term project towards the development of an alternative and efficient delivery system of Cry proteins to control the sugarcane borer, the current work describes the selection and characterization of a Brazilian B. thuringiensis strain with prominent activity towards D. saccharalis. Strain S76 was eleven-fold more active than the HD-1 Lepidoptera-standard strain, as estimated by the LC50 of 13.06 µg/L and 143.88 µg/L, respectively. We observed bipiramidal and cuboidal crystals similar to those found in other B. thuringiensis strains with entomopathogenic activity against Lepidoptera and Diptera. In addition, smaller and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Bacillus thuringiensis kurstaki; Cry toxins; Spherical crystal; Diatraea saccharalis.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300028

A Buried Drain Erosion and Sediment Loss Control System
Provedor de dados: 18
Autores: Carter, D.L.; Berg, R.D.
Tipo: Technical Bulletin
Palavras-chave: Erosion; Sediment; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1985
URL: http://eprints.nwisrl.ars.usda.gov/1164/1/552.pdf

A CADEIA AGROINDUSTRIAL DE FUMOS CLAROS DO SUL DO BRASIL E A “CONVENÇÃO-QUADRO PARA O CONTROLE DO TABACO”: ESTRATÉGIAS E PERSPECTIVAS
Provedor de dados: 31
Autores: Silva,   Leonardo Xavier da.
A cadeia agroindustrial do tabaco no sul do Brasil está estruturada a partir de dois grupos distintos. De um lado, centenas de milhares de pequenos agricultores e, de outro, uma indústria constituída por um oligopólio de capital multinacional. A produção é a de fumos claros, cujo principal mercado é o externo, que o compra para transformá-lo em cigarros. O Brasil é o líder mundial dos negócios em tabaco para cigarros e nos últimos três anos têm-se colocado diante de um fato novo: a Convenção-Quadro para o controle do Tabaco, documento confeccionado e assinado por mais de cem países e cujo objetivo é reduzir a produção da folha no mundo. As reações dos agentes da cadeia têm sido distintas. Pelo lado dos agricultores, instituições como a Associação dos...
Tipo: Conference Paper or Presentation
Palavras-chave: Cadeia agroindustrial; Fumos claros; Sul do Brasil; Convenção-quadro; Agro industrial chain; Tobacco to cigarette; South of Brazil; Framework Convention; Agribusiness; Crop Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/113965

A campilobacteriose e tricomonose são doenças reemergentes?
Provedor de dados: 14
Autores: PELLEGRIN, A. O.
Epidemiologia; Prevalência e incidência no Brasil; Fatores e risco; Impactos econômicos; Diagnóstico; Controle.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Bovine; Disease; Campylobacter fetus venerealis; Tritichomonas foetus; Diagnostic; Control.; Bovino; Campilobacteriose; Doença; Diagnostico; Epidemiologia; Pecuária; Tricomonose.; Epidemiology.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810729

A Case Control Study of Bovine Viral Diarrhea Virus (BVDV) Persistent Infection (PI) in Betsukai, Hokkaido, Japan
Provedor de dados: 19
Autores: KADOHIRA, Mutsuyo; TAJIMA, Motoshi; 門平, 睦代.
The Betsukai town office implemented bovine viral diarrhea virus (BVDV) preventive activities (i.e., vaccination and surveillance) in 2006. Using bulk tank milk screening followed by individual blood tests using a Reverse Transcription-Polymerase Chain Reaction (RT-PCR) method, persistent infection (PI) cattle were detected and eliminated from the population. Based on data for PI cattle detected between 2006 and 2007, we conducted a case control study to find risk factors associated with the presence of PI cattle. Significantly associated farm level factors for increasing risk of producing PI cattle include; 1) no recent purchase of cattle (between 2004 and 2007) and 2) no prevention of people/animals entering the premises. This study suggests that not...
Palavras-chave: Biosecurity; BVDV infection; Case control study; Hokkaido/Japan.
Ano: 2010
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4126

A Case Study of Technological Switching and Technological Lock-In in the French Fisheries Sector: Why is Sustainable Change so Difficult?
Provedor de dados: 5
Autores: Le Floc'H, Pascal; Daures, Fabienne; Guyader, Olivier; Wilson, James.
Many sectors such as the fishery show classic examples of technological lock-in and path dependence, even though some economists might predict smooth switching toward technologies that are more cost effective and sustainable. We use ideas from the evolutionary economics and public choice literatures to explain why trajectories of technological change, especially in fisheries, may not be smooth at all, but rather punctuated. The interest of technological change and switching behavior for fisheries economists and managers stems from the fact that control of effective effort, often necessary for sustainable management of the resource, remains a central management problem for that sector worldwide, even in developed countries. However, various policies put in...
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00109/21987/20057.pdf

A Common 34C&gt;G Variant at the Peroxisome Proliferator-Activated Receptor &amp;#947;2- Gene in Chilean Women with Polycystic Ovary Syndrome and Controls
Provedor de dados: 77
Autores: Guzmán,Neftalí; Erices,Leonardo; Valdés,Patricio; Salazar,Luis A.
The 34C&gt;G (Prol2Ala) polymorphic variant of the peroxisome proliferator-activated receptor-&amp;#947;2 (PPAR-&amp;#947;2) gene has been associated with polycystic ovary syndrome (PCOS). However, the results between populations are contradictory. Thus, in the present study was investigated the possible association between 34C&gt;G polymorphism at the PPAR-&amp;#947;2 gene and PCOS in Chilean women. A total of 50 unrelated women (29.1 + 8.1 years) with diagnosis of PCOS and 75 healthy controls (29.3+ 9.3 years) were included in this study. Serum lipids, glucose and uric acid levels were determined by enzymatic-colorimetric methods. The 34C&gt;G variant in the PPAR-&amp;#947;2 gene was analyzed by PCR-RFLP. Women with PCOS exhibited a higher levels of...
Tipo: Journal article
Palavras-chave: Polycystic ovary syndrome; Peroxime proliferator-activated receptor; Prol2Ala polymorphism.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000400030

A common protocol to assemble a coherent database from distributed heterogeneous data sets: The MEDATLAS database experience
Provedor de dados: 5
Autores: Fichaut, Michele; Balopoulos, Efstathios; Dooley, Harry; Garcia-fernandez, Maria; Iona, Athanasia; Jourdan, Didier; Baudet, Laurent; Maillard, Catherine.
The MEDATLAS hydrological data base, has been created by a consortium of several data centers, including HNODC (Greece), IEO (Spain), EPSHOM/CMO (French navy), IFREMERJSISMER the coordinating center (France) and ICES (Denmark) as the supervisor of the quality control procedure, in the frame of the MEDATLAS project. This project is a MAST supporting initiative for ocean data and information management. Its objectives were to assemble a comprehensive data base of temperature and salinity profiles collected in the Mediterranean sea by t he scientific laboratories and the navies, to check them for quality and to revise the climatological statistics by using this updated date set. An important part of the work has been devoted to define a common protocol to...
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00251/36211/34756.pdf

A comparative analysis of the technical efficiency of rain-fed and smallholder irrigation in Ethiopia
Provedor de dados: 31
Autores: Makambe,   Godswill; Namara,   Regassa E.; Hagos,   Fitsum; Awulachew,   Seleshi Bekele; Ayana,   Mekonnen; Bossio,   Deborah A.
Agriculture is the most significant contributor to Ethiopia’s economy. Most of the agricultural production is under rainfed conditions and thus extremely sensitive to rainfall variability. Irrigation development, including smallholder irrigation, is used by the Ethiopian Government to attempt to mitigate the effects of rainfall variability. In this study, we look at smallholder irrigation - modern and traditional irrigation systems. A detailed description of the cropping patterns is given. The stochastic frontier production function approach is used to estimate technical inefficiency, and constraints to production are analyzed. Since the traditional system is found to be efficient but on a lower production frontier, the study shows that significant gains...
Tipo: Working or Discussion Paper
Palavras-chave: Rainfed farming; Irrigated farming; Efficiency; Irrigation schemes; Small scale systems; Cropping patterns; Crop production; Economic aspects; Statistical analysis; Agricultural and Food Policy; Crop Production/Industries; Production Economics.
Ano: 2011
URL: http://purl.umn.edu/118298

A comparative analysis of the technical efficiency of rain-fed and smallholder irrigation in Ethiopia
Provedor de dados: 31
Autores: Makombe,   Godswill; Namara,   Regassa E.; Hagos,   Fitsum; Awulachew,   Seleshi Bekele; Ayana,   Mekonnen; Bossio,   Deborah A.
Agriculture is the most significant contributor to Ethiopia’s economy. Most of the agricultural production is under rainfed conditions and thus extremely sensitive to rainfall variability. Irrigation development, including smallholder irrigation, is used by the Ethiopian Government to attempt to mitigate the effects of rainfall variability. In this study, we look at smallholder irrigation - modern and traditional irrigation systems. A detailed description of the cropping patterns is given. The stochastic frontier production function approach is used to estimate technical inefficiency, and constraints to production are analyzed. Since the traditional system is found to be efficient but on a lower production frontier, the study shows that significant gains...
Tipo: Working or Discussion Paper
Palavras-chave: Rainfed farming; Irrigated farming; Efficiency; Irrigation schemes; Small scale systems; Cropping patterns; Crop production; Economic aspects; Statistical analysis; Crop Production/Industries; Farm Management.
Ano: 2011
URL: http://purl.umn.edu/113012

A comparative study of the implementation of organic food in school meal systems in four European countries
Provedor de dados: 21
Autores: Nielsen, Thorkild; Nölting, Benjamin; Kristensen, Niels Heine; Løes, Anne-Kristin.
Based on national reports from Denmark, Finland, Italy and Norway, describing the school meal systems and to which extent organic food is integrated there, this report identifies differences between the four countries and experiences made with organic food procurement and the dissemination of organic ingredients in school meals. Such knowledge will help to understand the possibilities and restrictions for increasing organic food in school meal systems, and to reveal the room of manoeuvre for public organic food procurement for youth in each country.  In the report, similarities and differences of the national school meal systems in general are first discussed, because this context determines the scope of organic food procurement. The history and current...
Tipo: Report
Palavras-chave: Food security; Food quality and human health Social aspects Produce chain management.
Ano: 2009
URL: http://orgprints.org/16670/1/16670.pdf

A comparative ultrastructural study of pit membranes with plasmodesmata associated thickenings in four angiosperm species
Provedor de dados: 16
Autores: Rabaey, D.; Lens, F.; Huysmans, S.; Smets, E.; Jansen, S.
Recent micromorphological observations of angiosperm pit membranes have extended the number and range of taxa with pseudo-tori in tracheary elements. This study investigates at ultrastructural level (TEM) the development of pseudo-tori in the unrelated Malus yunnanensis, Ligustrum vulgare, Pittosporum tenuifolium, and Vaccinium myrtillus in order to determine whether these plasmodesmata associated thickenings have a similar developmental pattern across flowering plants. At early ontogenetic stages, the formation of a primary thickening was observed, resulting from swelling of the pit membrane in fibre-tracheids and vesselelements. Since plasmodesmata appear to be frequently, but not always, associated with these primary pit membrane thickenings, it remains...
Tipo: Article / Letter to the editor
Palavras-chave: Ontogeny; Pseudo-torus; Tracheary element; Pit membrane; Bordered pit; Wood ultrastructure; 42.56.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/430078

A Comparison of Actual and Hypothetical Willingness to Pay of Parents and Non-Parents for Protecting Infants' Health: The Case of Nitrates in Drinking Water
Provedor de dados: 31
Autores: Loomis,   John B.; Asmus, Cheryl; Bell, Paul.
The objective of this research was to estimate adults' willingness to pay to reduce health risks to their or other families's infants, the latter to test for altruism. A choice experiment was conducted by having adults pay for bottled water for infants to reduce infants' exposure to nitrates in drinking water. Since nitrates only affect infants' health, we have isolated the adults' willingness to pay just for infants' health by buying bottled water to avoid infants' nitrate intake. Respondents were separated into two treatments, one with hypothetical choices, and the other where respondents were told that one of their four choices would be binding, and they would actually buy bottled water using money given to them at the beginning of the experiment....
Tipo: Conference Paper or Presentation
Palavras-chave: Altruism; Conjoint; Drinking water; Validity; Willingness to pay; Health Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/9358

A Comparison of Auction and Choice Experiment: An Application to Consumer Willingness to Pay for Rice with Improved Storage Management
Provedor de dados: 31
Autores: Su,   Lianfan; Adam,   Brian D.; Lusk,   Jayson L.; Arthur,   Frank.
Experimental auction and discrete choice experiment are two popular value elicitation methods. Theoretically they should yield the same results but empirical results have been mixed (e.g., Lusk and Schroeder 2004, 2006; Corrigan et al. 2010.) This study uses both methods to determine consumers’ willingness to pay (WTP) for rice with improved insect control and for rice stored using Integrated Pest Management (IPM). This study investigates two potential reasons – anchoring and information – for why some studies have found apparent inconsistencies between auction and choice experiment results. Results indicate that consumers’ WTP derived in the auction and choice experiments are significantly different. Consumers’ average bids in the auction are higher than...
Tipo: Conference Paper or Presentation
Palavras-chave: 2nd price auction; Choice experiment; Price level; Information; Consumer/Household Economics; Crop Production/Industries.
Ano: 2011
URL: http://purl.umn.edu/103975

A Comparison Of Choice Experiments And Actual Grocery Store Behavior: An Empirical Application To Seafood Products
Provedor de dados: 31
Autores: Hudson,   Darren; Gallardo,   Rosa Karina; Hanson,   Terrill R.
In this paper we compare results from an in-store field experiment and a mail survey choice experiment (CE) to investigate CE’s capacity in predicting grocery store market share. For the comparison, we used three seafood products: freshwater prawns, marine shrimp, and lobster. CE estimates were obtained via four econometric models: the conditional logit, the random parameter logit, the heteroskedastic extreme value, and the multinomial probit. We found that the level of control in the grocery store experiment and the choice of econometric model influenced the capacity of CE to predict grocery store market shares.
Tipo: Article
Palavras-chave: Choice experiment; Grocery store; Hypothetical bias; Food Consumption/Nutrition/Food Safety; Marketing; C35; Q13.
Ano: 2012
URL: http://purl.umn.edu/120453

A  COMPARISON OF STRATEGIES FOR WEED MANAGEMENT IN NATURE FARMING
Provedor de dados: 21
Autores: Sangakkara, U.R.; Amerasekera, P.; Bandaranayake, P.R.S.D.
Weeds are a major problem in organic or Nature Farming systems and mechanical methods are generally used for weed control. However either mulching or growing crop in-between rows of the principal crop offers scope as a means of protecting soil and suppressing weeds. Field studies thus evaluated the impact of either a mulch or growing two intercrops as possible management strategies for controlling weeds of vegetables grown in major and minor seasons of the tropics under a Nature Farming regime. All three strategies controlled weed numbers, their biomass and increased crop yields. However the least beneficial impact was from the dead leaf mulch, while the highest degree of weed control and increments in crop yields was with the green manure intercrop. The...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2014
URL: http://orgprints.org/24317/1/24317%20Rahmann_MM.pdf

A Comparison of the Relationship between the Golden Ratio and Anatomical Characteristics of the Supraorbital Foramen in Bare Skulls Belonging to the Byzantine Era and Modern Era
Provedor de dados: 77
Autores: Bakirci,S; Kafa,I. M; Coskun,I; Buyukuysal,M. C; Barut,C.
The aim of the present study is to determine the frequency of the occurrence of supraorbital foramen/notch (SOF/N) in the skulls of the people who lived in the modern era and the late Byzantine era, to determine the symmetry and the asymmetry between the two halves of the skulls by measuring the linear distance to various landmarks, to check the consistency between the location of the SOF/N and the golden ratio by calculating the ratio between linear distances and to evaluate the differences between the skulls from both historical periods. In the study, the frequency of the occurrence of the supraorbital notch in the skulls from the Byzantine era was found to be 26.60 % on the right and 13.30 % on the left while it was 14.30 % on the right and 9.52 % on...
Tipo: Journal article
Palavras-chave: Supraorbital foramen; Supraorbital notch; Golden ratio; Byzantine era; Asymmetry; Frontal bone.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200040

A compilation of global bio-optical in situ data for ocean-colour satellite applications
Provedor de dados: 5
Autores: Valente, Andre; Sathyendranath, Shubha; Brotas, Vanda; Groom, Steve; Grant, Michael; Taberner, Malcolm; Antoine, David; Arnone, Robert; Balch, William M.; Barker, Kathryn; Barlow, Ray; Belanger, Simon; Berthon, Jean-francois; Besiktepe, Sukru; Brando, Vittorio; Canuti, Elisabetta; Chavez, Francisco; Claustre, Herve; Crout, Richard; Frouin, Robert; Garcia-soto, Carlos; Gibb, Stuartw.; Gould, Richard; Hooker, Stanford; Kahru, Mati; Klein, Holger; Kratzer, Susanne; Loisel, Hubert; Mckee, David; Mitchell, Brian G.; Moisan, Tiffany; Muller-karger, Frank; O'Dowd, Leonie; Ondrusek, Michael; Poulton, Alex J.; Repecaud, Michel; Smyth, Timothy; Sosik, Heidi M.; Twardowski, Michael; Voss, Kenneth; Werdell, Jeremy; Wernand, Marcel; Zibordi, Giuseppe.
A compiled set of in situ data is important to evaluate the quality of ocean-colour satellite-data records. Here we describe the data compiled for the validation of the ocean-colour products from the ESA Ocean Colour Climate Change Initiative (OC-CCI). The data were acquired from several sources (MOBY, BOUSSOLE, AERONET-OC, SeaBASS, NOMAD, MERMAID, AMT, ICES, HOT, GeP&amp;CO), span between 1997 and 2012, and have a global distribution. Observations of the following variables were compiled: spectral remote-sensing reflectances, concentrations of chlorophyll a, spectral inherent optical properties and spectral diffuse attenuation coefficients. The data were from multi-project archives acquired via the open internet services or from individual projects,...
Tipo: Text
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00346/45674/45298.pdf

A compilation of global bio-optical in situ data for ocean-colour satellite applications - version two
Provedor de dados: 5
Autores: Valente, Andre; Sathyendranath, Shubha; Brotas, Vanda; Groom, Steve; Grant, Michael; Taberner, Malcolm; Antoine, David; Arnone, Robert; Balch, William M.; Barker, Kathryn; Barlow, Ray; Belanger, Simon; Berthon, Jean-francois; Besiktepe, Suikru; Borsheim, Yngve; Bracher, Astrid; Brando, Vittorio; Canuti, Elisabetta; Chavez, Francisco; Cianca, Andres; Claustre, Herve; Clementson, Lesley; Crout, Richard; Frouin, Robert; Garcia-soto, Carlos; Gibb, Stuart W.; Gould, Richard; Hooker, Stanford B.; Kahru, Mati; Kampel, Milton; Klein, Holger; Kratzer, Susanne; Kudela, Raphael; Ledesma, Jesus; Loisel, Hubert; Matrai, Patricia; Mckee, David; Mitchell, Brian G.; Moisan, Tiffany; Muller-karger, Frank; O'Dowd, Leonie; Ondrusek, Michael; Platt, Trevor; Poulton, Alex J.; Repecaud, Michel; Schroeder, Thomas; Smythe, Timothy; Smythe-wright, Denise; Sosik, Heidi M.; Twardowski, Michael; Vellucci, Vincenzo; Voss, Kenneth; Werdell, Jeremy; Wernand, Marcel; Wright, Simon; Zibordi, Giuseppe.
A global compilation of in situ data is useful to evaluate the quality of ocean-colour satellite data records. Here we describe the data compiled for the validation of the ocean-colour products from the ESA Ocean Colour Climate Change Initiative (OC-CCI). The data were acquired from several sources (including, inter alia, MOBY, BOUSSOLE, AERONET-OC, SeaBASS, NOMAD, MERMAID, AMT, ICES, HOT and GeP&amp;CO) and span the period from 1997 to 2018. Observations of the following variables were compiled: spectral remote-sensing reflectances, concentrations of chlorophyll a, spectral inherent optical properties, spectral diffuse attenuation coefficients and total suspended matter. The data were from multi-project archives acquired via open internet services or from...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00508/61937/66031.pdf

A conceptual framework to evaluate human-wildlife interactions within coupled human and natural systems
Provedor de dados: 7
Autores: Morzillo, Anita T.; University of Connecticut; anita.morzillo@uconn.edu; de Beurs, Kirsten M.; University of Oklahoma; kdebeurs@ou.edu; Martin-Mikle, Chelsea J.; University of Oklahoma; chelseajane.martin@gmail.com.
Landscape characteristics affect human-wildlife interactions.  However, there is a need to better understand mechanisms that drive those interactions, particularly feedbacks that exist between wildlife-related impacts, human reaction to and behavior as a result of those impacts, and how land use and landscape characteristics may influence those components within coupled human and natural systems.  Current conceptual models of human-wildlife interactions often focus on species population size as the independent variable driving those interactions.  Such an approach potentially overlooks important feedbacks among and drivers of human-wildlife interactions that result from mere wildlife presence versus absence.  We describe an emerging conceptual framework...
Tipo: Peer-Reviewed Reports
Palavras-chave: Coupled human and natural systems; Human-wildlife conflict; Human-wildlife interactions; Landscape ecology; Pesticides; Rodenticides; Wildlife management.
Ano: 2014

A connection between extracellular matrix and hormonal signals during the development of the human fetal adrenal gland
Provedor de dados: 56
Autores: Chamoux,E.; Otis,M.; Gallo-Payet,N.
The human adrenal cortex, involved in adaptive responses to stress, body homeostasis and secondary sexual characters, emerges from a tightly regulated development of a zone-specific secretion pattern during fetal life. Its development during fetal life is critical for the well being of pregnancy, the initiation of delivery, and even for an adequate adaptation to extra-uterine life. As early as from the sixth week of pregnancy, the fetal adrenal gland is characterized by a highly proliferative zone at the periphery, a concentric migration accompanied by cell differentiation (cortisol secretion) and apoptosis in the central androgen-secreting fetal zone. After birth, a strong reorganization occurs in the adrenal gland so that it better fulfills the newborn's...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adrenal gland; Development; Human fetus; Extracellular matrix; Angiotensin II; Adrenocorticotropin.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001000006

A conservationist approach on environmental diagnosis of ground use in the Iguatemi river basin, Mato Grosso do Sul State, Brazil - doi: 10.4025/actascibiolsci.v34i3.9001
Provedor de dados: 3
Autores: Souto, Marco Antonio Gomes; Instituto Reserva Natural.
Landscape Ecology is a contemporary approach in conservation studies in which, coupled to the development and use of GIS-based tools, provides new methods for the analysis of forest fragments. Based on these new approaches, the environmental assessment of ground use in the Iguatemi river basin Mato Grosso do Sul State, Brazil is provided through conservation-based flora and ecology aspects. A regional map of ground use with field-collected data using Rapid Ecological Assessment methodology and digital satellite images was prepared. AER analysis showed a highly impacted region featuring intense transformation in ground use with a conversion of 87% of native forest into grazing and agriculture land. The general situation is inconsistent with APA guidelines,...
Palavras-chave: 2.05.00.00-9; 2.05.03.00-8 landscape ecology; Conservation; Forest fragments Ecologia; Ecologia Aplicada.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9001

A contribution to the identification of charcoal origin in Brazil II - Macroscopic characterization of Cerrado species
Provedor de dados: 42
Autores: GONÇALVES,THAÍS A.P.; NISGOSKI,SILVANA; OLIVEIRA,JULIA S.; MARCATI,CARMEN R.; BALLARIN,ADRIANO W.; MUÑIZ,GRACIELA I.B.
The Brazilian Cerrado is the richest savanna in the world. It is also one of the biomes more threatened in the country and a hotspot for conservation priorities. The main causes of deforestation in Cerrado are agricultural practices, livestock and charcoal production. Although charcoal has a minor impact, its consumption represents the deforestation of 16.000 Km² of the Cerrado. To contribute for the biomes's conservation it is very important to improve forestry supervision. Thus, in this work we present the macroscopic characterization of charcoal from 25 Cerrado's species. We simulate the real conditions of forest controllers by using the magnifications of 10x, 25x and 65x. Likewise, the charcoals micrographs are all of transverse sections due to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Charcoal anatomy; Nature conservancy; Forest control; Native species.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000301045

A CONTROL THEORY APPROACH TO OPTIMAL IRRIGATION SCHEDULING IN THE OKLAHOMA PANHANDLE
Provedor de dados: 31
Autores: Harris,   Thomas R.; Mapp,   Harry P., Jr.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1980
URL: http://purl.umn.edu/29400

A controversy re-visited: Is the coccinellid Adalia bipunctata adversely affected by Bt toxins?
Provedor de dados: 21
Autores: Hilbeck, Angelika; Mc Millan, Johanna M.; Meier, Matthias; Humbel, Anna; Schläpfer-Miller, Juanita; Trtikova, Miluse.
Background: In 2008/2009, Schmidt and colleagues published a study reporting lethal effects of the microbial Bt toxins Cry1Ab and Cry3Bb on the coccinellid biological control organisms Adalia bipunctata. Based on this study, in concert with over 30 other publications, Mon810 cultivation was banned in Germany in 2009. This triggered two commentaries and one experimental study all published in the journal ‘Transgenic Research’ that question the scientific basis of the German ban or claim to disprove the adverse effects of the Bt toxins on A. bipunctata reported by Schmidt and colleagues, respectively. This study was undertaken to investigate the underlying reasons for the different outcomes and rebuts the criticism voiced by the two other commentaries....
Tipo: Journal paper
Palavras-chave: Research methodology and philosophy; Environmental aspects.
Ano: 2012
URL: http://orgprints.org/23046/1/Hilbeck-etal-2012-EnvironSciEu-24-10-p1-12.pdf

A cooperative action of endothelin-1 with prostaglandin F-2 alpha on luteal function in the cow
Provedor de dados: 19
Autores: Shirasuna, Koumei; Watanabe, S.; Oki, N.; Wijayagunawardane, M. P. B.; Matsui, Motozumi; Ohtani, M.; Miyamoto, Akio; 白砂, 孔明; 松井, 基純; 宮本, 明夫.
Prostaglandin F-2 alpha (PGF(2 alpha)) is the primary luteolysin in the cow, and luteal endothelin-1 (ET-1) interacts with PGF(2 alpha) during the process of luteolysis. In contrast, a developing corpus luteum (CL) is refractory to exogenous administration of PGF(2 alpha). Thus, the present study was aimed to investigate the functional relationship between ET-1 and PGF(2 alpha) in the mid-CL (PGF(2 alpha)-sensitive) and early-CL (PGF(2 alpha)-refractory). In the mid-CL model, cows (n = 6/treatment) were assigned to receive one of five types of treatments on day 10 of the estrous cycle: (1) an injection of saline; control, (2) a 500 jig of PGF2. analogue (sufficient dose to induce luteolytis); full-PG, (3) an intraluteal injection of 0.25 mg ET-1; ET-1, (4)...
Palavras-chave: Endothelin-1; Prostaglandin F-2 alpha; Luteolysis; Corpus luteum; Cow.
Ano: 2006
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/825

A coral-eating barnacle, revisited (Cirripedia, Pyrgomatidae)
Provedor de dados: 16
Autores: Ross, Arnold; Newman, William A.
The coral-eating barnacle Hoekia monticulariae (Gray, 1831), the only internal parasite among the Thoracica described to this day, is characterized by an irregularly-shaped shell nestled cryptically between the polyps of the hermatypic coral Hydnophora Fischer, 1807, which occurs throughout most of the Indo-West Pacific. Because of its protean form, cirripedologists have failed to appreciate the diversity of taxa related to Hoekia, , a presumed monotypic genus. We describe seven new species divided between Hoekia and three new genera, Eohoekia, Parahoekia, and Ahoekia for which the Tribe Hoekiini is proposed. As in other pyrgomatids, calcareous overgrowth by the coral is inhibited around the edge of the wall and aperture. But in Hoekiini a pseudopolyp,...
Tipo: Article / Letter to the editor
Palavras-chave: Cirripedia; Pyrgomatidae; Hoekia; Coral-eating barnacles; New species; Parasitism; Functional morphology.
Ano: 1995
URL: http://www.repository.naturalis.nl/record/504389

A cost-effective method for rapid identification of the southern muriqui (Brachyteles arachnoids: a contribution for the control of illegal bushmeat trade
Provedor de dados: 81
Autores: Valões Cardoso,M. Luiza; Ferreira,Paula B; Wanderley,Artur M; Torres,Rodrigo A; Talebi Gomes,Mauricio; Teixeira,Rodrigo H. F; Duarte,José M. B; Garcia,José E.
To control illegal wildlife-product trade and protect endangered species of animals, unambiguous identification of the captured specimens is essential. Forensic genetic tools have contributed to identify animal species for conservation purposes promoting accurate results for informing public policies and management of the biodiversity. The southern muriqui (Brachyteles arachnoides) is the largest non-human primate of the Neotropical region and is critically endangered (IUCN Red List of Threatened Species), mainly due to the illegal hunting for bushmeat. In this study, we describe a molecular method using PCR/RFLP to differentiate between bushmeat of southern muriqui and the meat of the domestic animals most commonly consumed in Brazil (Bos taurus, Ovis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachyteles arachnoides; Forensic genetics; Illegal hunting; Threatened species; 16S mtDNA.
Ano: 2018
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832018000100004

A COST-EFFECTIVENESS ANALYSIS OF DEMAND- AND SUPPLY-SIDE EDUCATION INTERVENTIONS: THE CASE OF PROGRESA IN MEXICO
Provedor de dados: 31
Autores: Coady,   David P.; Parker,   Susan W.
This paper is concerned with the issue of the most cost-effective way of improving access to education for poor households in developing countries. We consider two alternatives: (1) extensive expansion of the school system (i.e., bringing education to the poor) and (2) subsidizing investment in education by the poor (i.e., bringing the poor to the education system). To this end, we evaluate the Programa Nacional de Educación, Salud y Alimentación (PROGRESA), a large poverty alleviation program recently introduced in Mexico that subsidizes education. Using double-difference regression estimators on data collected before and after the program for randomly selected control and treatment households, we estimate the relative impacts of the demand- and...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital.
Ano: 2002
URL: http://purl.umn.edu/16406

A Cost-Effectiveness Study of Animal Disease Eradication Strategies: Foot-and-Mouth Disease in Ireland
Provedor de dados: 31
Autores: Dillon,   Emma J.
The primary focus of this poster paper is to evaluate the cost-effectiveness of alternative control strategies for a number of simulated outbreaks of Foot-and-Mouth disease (FMD) in four agriculturally diverse Irish regions, examining for the first time, the potential role of emergency vaccination in the country. With the increasing threat of transboundary animal diseases due to globalisation, wider market integration and increased animal movement it is important that such an evaluation of control and eradication strategies be undertaken and contingency plans be put in place. The new EU Directive (2003/85/EC) on FMD control permits the use of emergency vaccination as part of an FMD control strategy. The slaughter of infected animals and "dangerous...
Tipo: Conference Paper or Presentation
Palavras-chave: Foot-and-Mouth disease; Control strategies; Transboundary animal diseases; Emergency vaccination; Computer simulation; Cost-effectiveness; Livestock Production/Industries; Q1; Q17; Q58.
Ano: 2006
URL: http://purl.umn.edu/25321

A coupled biophysical model for the distribution of the great scallop Pecten maximus in the English Channel
Provedor de dados: 5
Autores: Le Goff, Clement; Lavaud, Romain; Cugier, Philippe; Jean, Fred; Flye-sainte-marie, Jonathan; Foucher, Eric; Desroy, Nicolas; Fifas, Spyros; Foveau, Aurelie.
In this paper we used a modelling approach integrating both physical and biological constraints to understand the biogeographical distribution of the great scallop Pecten maximus in the English Channel during its whole life cycle. A 3D bio-hydrodynamical model (ECO-MARS3D) providing environmental conditions was coupled to (i) a population dynamics model and (ii) an individual ecophysiological model (Dynamic Energy Budget model). We performed the coupling sequentially, which underlined the respective role of biological and physical factors in defining P. maximus distribution in the English Channel. Results show that larval dispersion by hydrodynamics explains most of the scallop distribution and enlighten the main known hotspots for the population,...
Tipo: Text
Palavras-chave: Population dynamic model; Ecophysiological model; English Channel; Pecten maximus; Spatial distribution.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00355/46642/46467.pdf

A coupled movement and bioenergetics model to explore the spawning migration of anchovy in the Bay of Biscay
Provedor de dados: 5
Autores: Politikos, Dimitrios; Huret, Martin; Petitgas, Pierre.
Adult anchovies in the Bay of Biscay perform north to south migration from late winter to early summer for spawning. However, what triggers and drives the geographic shift of the population remains unclear and poorly understood. An individual-based fish model has been implemented to explore the potential mechanisms that control anchovy's movement routes toward its spawning habitats. To achieve this goal, two fish movement behaviors – gradient detection through restricted area search and kinesis – simulated fish response to its dynamic environment. A bioenergetics model was used to represent individual growth and reproduction along the fish trajectory. The environmental forcing (food, temperature) of the model was provided by a coupled...
Tipo: Text
Palavras-chave: Individual-based model; Behavioral movement; Dynamic Energy Budget; Anchovy; Bay of Biscay.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00273/38446/36868.pdf

A Critique of the Use of the Balanced Scorecard in Multi-Enterprise Family Farm Businesses
Provedor de dados: 31
Autores: Shadbolt,   Nicola M.; Beeby,   N.; Brier,   B.; Gardner,   John W.G.
Business strategy is very important to small and medium family businesses as many are both fragile and vulnerable; strategy provides a solid foundation for survival. Various studies have identified that businesses that engage in strategic management outperform those that do not. Despite this knowledge the uptake of many aspects of strategic management by farm businesses has been slow. Although the development of business plans is now common there is often a disconnect between monitoring and strategy. The Balanced Scorecard (BSC) was applied to case study farms during both the planning process and as they implemented and controlled their strategic choices to determine areas of difference that restrict or enhance it as a management tool for both family and...
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management.
Ano: 2003
URL: http://purl.umn.edu/24380

A cultura da pimenta do reino.
Provedor de dados: 14
Autores: ALBUQUERQUE, F. C. de; DUARTE, M. de L. R.; SILVA, H. M. e; PEREIRA, R. H. M.
bitstream/item/150905/1/CULTURA-PIMENTA-DO-REINO-.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pimenta-do-reino; Cultivo; Propagação; Cobertura; Controle; Brasil; Cultivation; Propagation; Cover; Disease; Pest; Harvest; Processing; Control; Production; Cost; Spacing; Fertilizer.; Adubação; Beneficiamento; Colheita; Comercialização; Clima; Custo; Espaçamento; Doença; Praga; Plantio; Produção; Solo.; Amazonia; Black pepper; Climate; Commercialization; Planting; Soil.
Ano: 1973
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375624

A cultura de arroz (Oryza sativa L.) de sequeiro na região dos cerrados - resultados de pesquisa com arroz no CPAC, nos anos agrícolas 75-76 e 76-77.
Provedor de dados: 14
Autores: RASSINI, J. B.
Abertura e preparo do solo destinados a uma agricultura intensiva, em área de cerrados; Dematamento; Limpeza; Correção do solo; Aração profunda; Gradagens; Catação de raízes; Variedades; Espaçamento; Época de semeadura; Tratamento de sementes; Adubação; Pragas e doenças; Colheita, secagem e armazenamento.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Sequeiro; Resultado; EMBRAPA-CPAC; Upland rice.; Arroz; Cerrado; Oryza Sativa; Pesquisa.; Disease control; Fertilizer application; Pest control; Seed treatment; Varieties.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/982656

A cultura do algodoeiro arboreo.
Provedor de dados: 14
Autores: FREIRE, E. C.; MOREIRA, J de A. N.; BARREIRO NETO, M.; BELTRAO, N. E. de M.; AZEVEDO, D. M. P.; PIMENTEL, C. R.; SILVA, O. R. R. F. da.
Escolha da area de plantio; Preparo e conservacao do solo; Plantio; Consorciacao; Tratos culturais; Variedades; Adubacao; Controle de pragas; Colheita.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo; Sistema; Trato cultural; Consorciacao; Controle; Perennial cotton; Cultivar; System; Production; Plantation; Pest; Control.; Algodão Arbóreo; Gossypium Hirsutum; Mocó; Praga; Plantio; Produção.; Intercropping.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262509

A cultura do girassol na região Meio-Norte do Brasil.
Provedor de dados: 14
Autores: RIBEIRO, J. L.
Preparo e correção do solo; Adubação; Época de semeadura; Espaçamento e densidade; Cultivares recomendadas; Controle de plantas daninhas; Controle de pragas; Controle de doenças; Colheita e armazenamento.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo; Piaui; Maranhão; Fertilization; Pest; Disease; Sunflower; Cultivation.; Adubação; Girassol; Helianthus Annuus; Doença; Praga; Variedade.; Varieties; Weed control.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/63138

A cytochemical study of acid carbohydrates on the surface of Candida lipolytica grown in tween 80-containing medium
Provedor de dados: 58
Autores: Nascimento,Aline E.; Shariá,Allana E. do Nascimento; Lima,Marco Antonio Barbosa de; Campos-Takaki,Galba Maria.
Carbohydrate-containing molecules were located on the surface of Candida lipolytica by using ruthenium red in a cytochemical study. The yeast was grown in media containing Tween 80. The surfactant, at 1.0% and 0.5%, was added to the culture medium in different intervals of time, correspondent to the beginning of exponential growth phase, mid of logarithimic phase and beginning of stationary growth phase. Control cultures were grown in a medium containing glucose. The growth of the yeast in media containing glucose and Tween 80 induced changes in the pattern of distribution and location of acid polyssacharides in the cell wall of the microorganism. In adition, the pattern also changed according to Tween 80 concentration. The influence of Tween 80 on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Candida lipolytica; Carbohydrate cytochemistry; Fungi ultrastructure.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000100008

A decision network for inspections in organic farms in Italy
Provedor de dados: 21
Autores: Gambelli, Danilo; Zanoli, Raffaele; Solfanelli, Francesco.
Inspections in organic farming systems are the key tool to assure reliability of the organic business and detection of non-compliant operators. Supporting control bodies in the inspection procedure can increase the efficiency and competitiveness of the sector. Here we propose a decision support system for inspections based on Bayesian networks. Our model is based on statistical information taken from the archives of main Italian control body, and considers decision strategies according to the maximization of expected utility based on risk minimization. © 2012 The authors and IOS Press.
Tipo: Journal paper
Palavras-chave: Food security; Food quality and human health Values; Standards and certification.
Ano: 2014
URL: http://orgprints.org/27765/7/27765.pdf

A Developing Country Puts A Halt To Foreign Overfishing
Provedor de dados: 20
Autores: Nichols, P.
Foreign fishing fleets drastically overfished the waters off Namibia before that country gained independence in 1990, according to Paul Nichols, Special Adviser to the Namibian Ministry of Fisheries and Marine Resources. Since then, the Government has taken strong regulatory actions that have brought overfishing under control and allowed depleted fish stocks to rebuild while gaining strong support for the policy among Namibia's commercial fishers.
Tipo: Journal Contribution
Palavras-chave: Overfishing.
Ano: 2003
URL: http://hdl.handle.net/1834/637

A Diagnostic Procedure for Transformative Change Based on Transitions, Resilience, and Institutional Thinking
Provedor de dados: 7
Autores: Ferguson, Briony C.; Monash Water for Liveability; Cooperative Research Centre for Water Sensitive Cities; Monash University; briony.ferguson@monash.edu; Brown, Rebekah R.; Monash Water for Liveability; Cooperative Research Centre for Water Sensitive Cities; Monash University; Rebekah.Brown@monash.edu; Deletic, Ana; Department of Civil Engineering; Monash Water for Liveability; Cooperative Research Centre for Water Sensitive Cities; Monash University; ana.deletic@monash.edu.
Urban water governance regimes around the world have traditionally planned large-scale, centralized infrastructure systems that aim to control variables and reduce uncertainties. There is growing sectoral awareness that a transition toward sustainable alternatives is necessary if systems are to meet society&amp;#8217;s future water needs in the context of drivers such as climate change and variability, demographic changes, environmental degradation, and resource scarcity. However, there is minimal understanding of how the urban water sector should operationalize its strategic planning for such change to facilitate the transition to a sustainable water future. We have integrated concepts from transitions, resilience, and institutional theory to develop a...
Tipo: Peer-Reviewed Reports
Palavras-chave: Institutions; Resilience; Strategic planning; Sustainability; Transformative change; Transition; Urban water.
Ano: 2013

A direct monoclonal antibody sandwich immunoassay for detection of Bonamia ostreae (Ascetospora) in hemolymph samples of the flat oyster Ostrea edulis (Mollusca : Bivalvia)
Provedor de dados: 5
Autores: Cochennec, Nathalie; Hervio, Dominique; Panatier, B; Boulo, Viviane; Mialhe, Eric; Rogier, H; Grizel, Henri; Paolucci, F.
Currently recognition of molluscan diseases relies heavily upon light microscopic examination of stained histological sections of molluscan tissues Such histopathological methods are time consuming and relatively inefficient In the study of ongoing epizootics Alternatively, more effluent investigative tools are needed to accelerate disease recognition and quantification Such methods are needed to prevent control and eradicate molluscan diseases This paper reports the development of a direct sandwich enzyme-lmmunosorbent assay (ELISA) for the ascetosporan intrahemocytic parasite Bonamiao ostreae of the flat oyster Ostrea edulis. Bonamiasis is a commercially important epizootic disease of oysters A Bonamia-specific monoclonal antibody is employed in the...
Tipo: Text
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/publication-2765.pdf

A DISCRETE STOCHASTIC MODEL TO DETERMINE FOOD QUALITY BY USING SIMULATION: A STRAWBERRY CASE STUDY
Provedor de dados: 70
Autores: González-Hernández,Isidro J.; Granillo-Macías,Rafael; Rondero-Guerrero,Carlos; Martínez-Flores,José L.
ABSTRACT The agri-food supply chain (AFSC) sets a series of challenges in the production, storage, distribution, and transportation processes, as the market's requirements for fresh food combine food quality and safety attributes. This research suggests a discrete event modeling to study the behavior of food quality in all supply chains (SCs) in terms of temperature and time variables in a stochastic manner. The ProModel software was used to simulate strawberry quality in the SC, considering a distribution route to export the fruit from Mexico to the United States. The suggested model together with a computer simulation analyzes the fruit quality from two perspectives: with and without a cold chain (CC). The obtained results revealed that in the case of CC...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agri-food supply chain; Discrete and stochastic model; Food quality; Simulation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000600747

A disponibilidade do potássio da "leucita de Poços de Caldas", estudada por meio do arroz
Provedor de dados: 43
Autores: Catani,R. A.; Gallo,J. R.
In order to know potassium availability in "leucita de Poços de Caldas" from Poços de Caldas, Minas Gerais, a Mitscherlich pot experiment was set up. The pots were filled with 6 kilograms of sieved (4 mm) "Terra Roxa Misturada" soil. Rice (Oryza sativa, L.), Dourado Agulha variety was the testing plant. Doses of potassium referred to are 1,5 g (as K(2)0) from both KCl and "leucita de Poços de Caldas". There were 6 treatments, with 3 repetitions, as follows: 1) Control; 2) NP + 1 dose K (KCl); 3) NP + 2 doses K (KCl)); 4) NP + 3 doses K (KCl); 5) NP + 1 dose K (leucita); 6) NP + 2 doses K (leucita) and 7) NP + 3 doses K (leucita). Each pot received 50 seeds. Five days after germination the seedlings were thinned to 35. Harvesting took place 4 months after...
Tipo: Info:eu-repo/semantics/article
Ano: 1960
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761960000100004

A DNA enzyme targeting Egr-1 inhibits rat vascular smooth muscle cell proliferation by down-regulation of cyclin D1 and TGF-β1
Provedor de dados: 56
Autores: Wu,Y.; Han,W.; Liu,G.-N.
We have demonstrated that a synthetic DNA enzyme targeting early growth response factor-1 (Egr-1) can inhibit neointimal hyperplasia following vascular injury. However, the detailed mechanism of this inhibition is not known. Thus, the objective of the present study was to further investigate potential inhibitory mechanisms. Catalytic DNA (ED5) and scrambled control DNA enzyme (ED5SCR) were synthesized and transfected into primary cultures of rat vascular smooth muscle cells (VSMCs). VSMC proliferation and DNA synthesis were analyzed by the MTT method and BrdU staining, respectively. Egr-1, TGF-β1, p53, p21, Bax, and cyclin D1 expression was detected by RT-PCR and Western blot. Apoptosis and cell cycle assays were performed by FACS. Green fluorescence could...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA enzyme; Egr-1; VSMC; Proliferation; Apoptosis.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000100004

A DNA pooling based system to detect Escherichia coli virulence factors in fecal and wastewater samples
Provedor de dados: 58
Autores: Luz María Chacón,J; Lizeth Taylor,C; Carmen Valiente,A; Irene Alvarado,P; Ximena Cortés,B.
The availability of a useful tool for simple and timely detection of the most important virulent varieties of Escherichia coli is indispensable. To this end, bacterial DNA pools which had previously been categorized were obtained from isolated colonies as well as selected in terms of utilized phenotype; the pools were assessed by two PCR Multiplex for the detection of virulent E. coli eaeA, bfpA, stx1, stx2, ipaH, ST, LT, and aatA genes, with the 16S gene used as DNA control. The system was validated with 66 fecal samples and 44 wastewater samples. At least one positive isolate was detected by a virulent gene among the 20 that were screened. The analysis of fecal samples from children younger than 6 years of age detected frequencies of 25% LT positive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Virulence genes; Wastewater; Fecal; Screening system; Escherichia coli.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400012

A Drosophila systems model of withdrawal from chronic pentylenetetrazole relevant in post-epileptogenesis
Provedor de dados: 17
Autores: Priyanka Singh; Farhan Mohammad; Abhay Sharma.
Rodent kindling induced by pentylenetetrazole (PTZ) is an established model of epileptogenesis and antiepileptic drug (AED) testing. Recently, a Drosophila systems model has been described in which chronic PTZ causes a decreased climbing speed in adult males on 7th day. Some AEDs ameliorate development of this locomotor deficit. Time-series of microarray expression profiles of heads of flies treated with PTZ has been found to resemble transcriptomic alterations associated with epileptogenesis. In the fly model, withdrawal from seven day long PTZ treatment causes an increased climbing speed on 7th consequent day. Here, we present a systems model of the post-PTZ withdrawal regime. Unlike AED-untreated individuals, flies treated with any of the five AEDs...
Tipo: Manuscript
Palavras-chave: Genetics &amp; Genomics; Neuroscience; Pharmacology; Bioinformatics.
Ano: 2009
URL: http://precedings.nature.com/documents/3447/version/1

A DSS to improve inspection procedures in organic certification. Evidence from an Italian case study
Provedor de dados: 21
Autores: Gambelli, Danilo; Solfanelli, Francesco; Zanoli, Raffaele.
Inspections in organic farming systems are the key tool to assure reliability of the organic business and detection of non-compliant operators. Supporting control bodies in the inspection procedure can increase the efficiency and competitiveness of the sector. Here we propose a decision support system for inspections based on Bayesian networks. Our model is based on statistical information taken from the archives of main Italian control body, and considers decision strategies according to the maximization of expected utility based on risk minimization.
Tipo: Journal paper
Palavras-chave: Values; Standards and certification Regulation.
Ano: 2014
URL: http://orgprints.org/27762/7/27762.pdf

A ‘during-infection’ spray strategy using sulphur compounds, copper, silicon and a new formulation of potassium bicarbonate for primary scab control in organic apple production.
Provedor de dados: 21
Autores: Jamar, Laurent; Lefrancq, Bruno; Fassotte, Christianne; Lateur, Marc.
In a field experiment conducted over two growing seasons, the effectiveness and phytotoxicity of inorganic fungicides such as sulphur, lime sulphur, copper, silicon and Armicarb (a new formulation of potassium bicarbonate) was compared with water for the control of primary apple scab infections in Belgium on high, medium and low scab-susceptible cultivars (cvs. ‘Pinova’, ‘Pirouette’ and ‘Reinette des Capucins’, respectively). In order to drastically reduce the amount of fungicide applied in the orchard, two approaches were used: (i) a strategy involving spraying during the infection process, just before  conditions for infection had been fulfilled according to the RIMpro software warning system; and (ii) a tunnel sprayer machine for treatment applications....
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection.
Ano: 2008

A DYNAMIC ANALYSIS OF US EXPORT WHEAT PRICING AND MARKET SHARES
Provedor de dados: 31
Autores: Ahmadi-Esfahani,   Fredoun Z.; Carter,   Colin A.
The economics of a higher loan rate to support US wheat prices is analysed. Utilising optimal control theory, a dynamic wheat trade model is developed. The basic premise underlying the model is that the United States finds itself having transient monopoly power in the wheat market. An expression for the optimal pricing policy which maximises the present value of expected profits over the indefinite future is derived. Results from both the theoretical and empirical models demonstrate that the US wheat pricing strategy depends on its costs relative to competitors' costs, the discount rate and the competitors' response function. The main policy implication of the analysis is for the dominant wheat exporting country constantly to seek to lower costs relative...
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1987
URL: http://purl.umn.edu/22269

A Dynamic Decision Model of Technology Adoption under Uncertainty: Case of Herbicide-Resistant Rice
Provedor de dados: 31
Autores: Annou,   Mamane Malam; Wailes,   Eric J.; Thomsen,   Michael R.
Herbicide-resistant (HR) rice technology is a potential tool for control of red rice in commercial rice production.  Using an ex ante mathematical programming framework, this research presents an empirical analysis of HR rice technology adoption under uncertainty.  The analysis accounts for stochastic germination of red rice and sheath blight to model a profit maximization problem of crop rotation among HR rice, regular rice, and soybeans.  The results demonstrate that risk attitudes and technology efficiency determine adoption rates and optimal rotation patterns.
Tipo: Journal Article
Palavras-chave: Biotechnology; Herbicide resistance; Mathematical programming; Profit maximization; Rice; Risk; Rotation; Technology; Adoption; Crop Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q16; Q18; O33; C61.
Ano: 2005
URL: http://purl.umn.edu/43724

A Dynamic Optimisation Model of Weed Control
Provedor de dados: 31
Autores: Jones,   Randall E.; Cacho,   Oscar J.
It is argued in this paper that static approaches to weed management, where the benefits and costs are only considered within a single season, are inappropriate for assessing the economic benefits of weed control technologies. There are carryover effects from weed management as weeds that escape control in one season may reproduce and replenish weed populations in following seasons. Consequently, it is appropriate to view weed control in the context of a resource management problem where the goal is to determine the optimal inter-temporal level of weed control that maximises economic benefits over some pre-determined period of time. A dynamic optimisation model for weed control is presented. Using the tools of comparative static analysis and Pontryagin's...
Tipo: Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/123685

A Dynamic Optimisation Model of Weed Control
Provedor de dados: 31
Autores: Cacho,   Oscar J.; Jones,   Randall E.
It is argued in this paper that static approaches to weed management, where the benefits and costs are only considered within a single season, are inappropriate for assessing the economic benefits of weed control technologies. There are carryover effects from weed management as weeds that escape control in one season may reproduce and replenish weed populations in following seasons. Consequently, it is appropriate to view weed control in the context of a resource management problem where the goal is to determine the optimal inter-temporal level of weed control that maximises economic benefits over some pre-determined period of time. A dynamic optimisation model for weed control is presented. Using the tools of comparative static analysis and Pontryagin's...
Tipo: Working or Discussion Paper
Palavras-chave: Weed control; Resource economics; Optimal control; Dynamic programming; Wild oats; Farm Management.
Ano: 2000
URL: http://purl.umn.edu/12902

A Dynamic Principal-Agent Model of Human-Mediated Aquatic Species Invasions
Provedor de dados: 31
Autores: Moore,   Rebecca; MacPherson,   Alexander J.; Provencher,   Bill.
This paper presents an integrated ecological and economic model of aquatic plant species invasions in which resource users are the primary vector of species colonization. A random utility model of boater behavior is combined with ecological information about the invader and the landscape to form a dynamic principal-agent model in which the principal is a manager concerned with the interseasonal spread of invasive species across lakes, and agents are recreational boaters making a series of intraseasonal trip decisions to maximize random utility during the course of the season. Agent behavior is sensitive to both the degradation of environmental quality on colonized lakes and the actions taken by resource managers to control the spread of the invasive...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/12684

A Dynamic Programming Approach to the Economic Control of Weed and Disease Infestations in Wheat
Provedor de dados: 31
Autores: Fisher,   Brian S.; Lee,   R.R.
Weeds and fungal diseases cause significant losses to grain crops in Australia. In many cases cultural methods of control are effective. However, it is often difficult for farm decision-makers to select the optimum crop rotation, from an economic point of view, given the technical constraints they face. A decision to plant a particular crop will have implications for both current and future profitability because the current decision will alter the constraints faced by the decision-maker in subsequent periods. Dynamic programming is used to solve the rotation problem faced by grain growers in north-western New South Wales in areas where the weed, wild oats (A vena falua or A vena ludoviciana), and the disease, crown rot (Fusarium graminearum Group I), have...
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1981
URL: http://purl.umn.edu/12237

A DYNAMIC PROGRAMMING FRAMEWORK FOR USING WEATHER DERIVATIVES TO MANAGE DAIRY PROFIT RISK
Provedor de dados: 31
Autores: Chen,   Gang; Roberts,   Matthew C.
Replaced with revised version of paper 07/19/04.
Tipo: Conference Paper or Presentation
Palavras-chave: Risk and Uncertainty.
Ano: 2004
URL: http://purl.umn.edu/20171

A dynamical model of genetic networks describes cell differentiation
Provedor de dados: 17
Autores: Roberto Serra; Villani Marco; Alessia Barbieri.
Cell differentiation is a complex phenomenon whereby a stem cell becomes progressively more specialized and eventually gives rise to a specific cell type. Differentiation can be either stochastic or, when appropriate signals are present, it can be driven to take a specific route. Induced pluripotency has also been recently obtained by overexpressing some genes in a differentiated cell. Here we show that a stochastic dynamical model of genetic networks can satisfactorily describe all these important features of differentiation, and others. The model is based on the emergent properties of generic genetic networks, it does not refer to specific control circuits and it can therefore hold for a wide class of lineages. The model points to a peculiar role of...
Tipo: Manuscript
Palavras-chave: Molecular Cell Biology; Bioinformatics.
Ano: 2010
URL: http://precedings.nature.com/documents/4741/version/1

A EVOLUÇÃO DA AGROINDÚSTRIA CANAVIEIRA E OS MERCADOS DE AÇÚCAR E DE ÁLCOOL CARBURANTE NO BRASIL: A NECESSIDADE DE PLANEJAMENTO E CONTROLE
Provedor de dados: 31
Autores: Ramos,   Pedro.
O texto analisa o surgimento e evolução do mercado de álcool carburante no Brasil, destacando seu elo com a trajetória do mercado interno e exportações de açúcar. Mostra que durante muito tempo tais mercados foram marcados pela ação planejadora por parte do órgão estatal (o IAA/Instituto do Açúcar e do Álcool) criado em 1933, e que o enfraquecimento de tal incumbência quando do advento do Proálcool em 1975 foi seguido do esvaziamento de outras atribuições do órgão entre 1985 e 1990, quando foi extinto. Destaca o comportamento da mistura de álcool anidro à gasolina, o ufanismo quanto à possibilidade de substituição do consumo de gasolina pelo de álcool hidratado, a crise de abastecimento deste álcool em 1989/90 e o problema decorrente da possibilidade de...
Tipo: Conference Paper or Presentation
Palavras-chave: Brasil; Mercados; Açúcar; Álcool; Planejamento; Brazil; Markets; Sugar; Alcohol; Planning; Agribusiness.
Ano: 2008
URL: http://purl.umn.edu/112757

A experimentação do sisal: parte I - experiências de espaçamento
Provedor de dados: 53
Autores: Medina,J. C.
Sisal (Agave sisalana Perrine) accounts for about one half of the world's production of hard fibers. In spite os its economic importance pratically no research work has been carried out on this plant. Very little is known about the agronomic problems of its cultivation, while the physiological and genetic problems are nearly unknown. This is perhaps due to the fact that A. sisalana is a perennial plant with a life cycle of 5-8 years and the carrying out of field research work requires a great deal of time and is very expensive. This paper, the first of a series to be published on the agronomic problems of sisal cultivation, presents the data obtained from field trials on distance of planting and its relation to weight and number of leaves produced. The...
Tipo: Info:eu-repo/semantics/article
Ano: 1948
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051948000100007

A farmer’s guide to organic fruit and vegetable production
Provedor de dados: 21
Autores: Little, Tony; Frost, David.
This guide is aimed at farmers who are considering diversification into horticulture. It assumes a sound and system-based understanding of agricultural systems, but limited knowledge of fruit and vegetable production.   It gives a general introduction on organic systems and soil fertility components including factors and examples of successful crop rotation.   For the main pests and diseases simple and system-based measures are highlighted, as e.g. considering the right timing of control measures, crop rotations and tillage. For weed management weeding machinery is briefly explained.  Basic questions on how to choose the right variety and the equipment for weeding, harvest, and storage are discussed.  Additionally, the guide gives a rough overview and...
Tipo: Practice tool
Palavras-chave: Vegetables; Fruit and berries.
Ano: 2008
URL: http://orgprints.org/30578/1/hortguide_eng.pdf

A FARM-LEVEL ANALYSIS OF SOIL LOSS CONTROL: MODELING THE PROBABILISTIC NATURE OF ANNUAL SOIL LOSS
Provedor de dados: 31
Autores: McSweeny,   William T.
The Conservation Compliance provision of the Food Security Act of 1985 requires all farmers who farmed highly erodible land prior to the passage of the Act to have a locally approved conservation plan fully implemented by 1995 or lose eligibility for numerous farm programs.  Soil loss estimates of various crop, tillage practices, and conservation practices, however, are stochastic in nature.  A farm planning model is suggested that allows for stochastic soil loss estimates.  The model is compared to other models used in farm level soil conservation studies.  The model shows promise as a more acceptable tool in that the farm plans are more likely to be acceptable to the farmer.
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1988
URL: http://purl.umn.edu/28845

A Feedback Mechanism to Control Apoptosis Occurs in the Digestive Gland of the Oyster Crassostrea gigas Exposed to the Paralytic Shellfish Toxins Producer Alexandrium catenella
Provedor de dados: 5
Autores: Rolland, Jean-luc; Medhioub, Walid; Vergnes, Agnes; Abi-khalil, Celina; Savar, Veronique; Abadie, Eric; Masseret, Estelle; Amzil, Zouher; Laabir, Mohamed.
To better understand the effect of Paralytic Shellfish Toxins (PSTs) accumulation in the digestive gland of the Pacific oyster, Crassostrea gigas, we experimentally exposed individual oysters for 48 h to a PSTs producer, the dinoflagellate Alexandrium catenella. In comparison to the effect of the non-toxic Alexandrium tamarense, on the eight apoptotic related genes tested, Bax and BI.1 were significantly upregulated in oysters exposed 48 h to A. catenella. Among the five detoxification related genes tested, the expression of cytochrome P450 (CYP1A) was shown to be correlated with toxin concentration in the digestive gland of oysters exposed to the toxic dinoflagellate. Beside this, we observed a significant increase in ROS production, a decrease in...
Tipo: Text
Palavras-chave: Shellfish; Toxin; Biomarker; Expression; Phytoplankton.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00225/33606/32003.pdf

A ferrugem do maracujazeiro.
Provedor de dados: 14
Autores: GASPAROTTO, L.; LIMA, M. I. P. M.; SANTOS, A. F. dos.
Descricao da ferrugem do maracujazeiro no estado do Amazonas, bem como das medidas para seu controle.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Fusarium oxysporum f; Sp; Passiflorae; Colletrotrichum gloeosporioides; Brasil; Amazonas; Diseases.; Antracnose; Controle Químico; Doença; Ferrugem; Fusariose; Maracujá; Passiflora Edulis.; Chemical control.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665566

A field survey of crop management practices and distribution of ALS resistant Euphorbia heterophylla in two states in southern Brazil
Provedor de dados: 87
Autores: Vidal,R.A.; Winkler,L.M.; Hernandes,G.C.; Fleck,N.G.; Merotto Jr.,A.; Trezzi,M.M.
Herbicide resistance was reported in Brazil almost ten years ago. One of the main weeds with herbicide resistance is wild poinsettia (Euphorbia heterophylla). This work evaluates the distribution of ALS-resistant E. heterophylla in two states in southern Brazil and determines the major contributing management causes for weed resistance selection in the area. E. heterophylla seeds from 148 sites located in Paraná and Rio Grande do Sul were sampled during 2001 and 2002. Farmers provided specific site data for weed control, tillage system, crop rotation and harvesting operations during previous years. ALS resistant E. heterophylla biotypes were found widely distributed in the survey area. Data analysis suggests seed dissemination is unlikely to explain the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Imazethapyr; Wild poinsettia; Herbicide mixtures.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582004000300010

A Field technique for infesting rice with Elasmopalpus lignosellus (Zeller) (Lepidoptera: Pyralidae) and evaluating insecticide treatments
Provedor de dados: 82
Autores: Ferreira,Evane; Barrigossi,José A.F.
A technique for rearing Elasmopalpus lignosellus (Zeller),larvae in laboratory, infesting plants in the field and evaluating treatments was described and tested in rice. In addition, the performance of insecticides as seed treatments to control larvae, under artificial and natural infestations, was evaluated on three planting dates. The experimental design was a Latin 6x6 square and the experimental unit consisted of seven 4 m long rows and 0.4 m spacing between rows. Treatments consisted of the following insecticides and doses: thiamethoxam (52.5, 70, and 105 g a.i./100 kg seeds), furathiocarb (320 g a.i./100kg seeds), carbofuran (525 g a.i./100kg seeds), and an untreated control. Artificial infestations were made, in two groups of three selected tillers...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insect; Lesser cornstalk borer insect rearing; Seed dressing.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000200030

A forced running wheel system with a microcontroller that provides high-intensity exercise training in an animal ischemic stroke model
Provedor de dados: 56
Autores: Chen,C.C.; Chang,M.W.; Chang,C.P.; Chan,S.C.; Chang,W.Y.; Yang,C.L.; Lin,M.T.
We developed a forced non-electric-shock running wheel (FNESRW) system that provides rats with high-intensity exercise training using automatic exercise training patterns that are controlled by a microcontroller. The proposed system successfully makes a breakthrough in the traditional motorized running wheel to allow rats to perform high-intensity training and to enable comparisons with the treadmill at the same exercise intensity without any electric shock. A polyvinyl chloride runway with a rough rubber surface was coated on the periphery of the wheel so as to permit automatic acceleration training, and which allowed the rats to run consistently at high speeds (30 m/min for 1 h). An animal ischemic stroke model was used to validate the proposed system....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forced non-electric-shock running wheel; Middle cerebral artery occlusion; Inclined plane test; Modified neurological severity score; Triphenyltetrazolium chloride.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014001000858

A Framework for Clarifying &amp;#8220;Participation&amp;#8221; in Participatory Research to Prevent its Rejection for the Wrong Reasons
Provedor de dados: 7
Autores: Barreteau, Olivier; Cemagref UMR G-EAU; olivier.barreteau@cemagref.fr; Bots, Pieter W. G.; Delft University of Technology; p.w.g.bots@tudelft.nl; Daniell, Katherine A; Australian National University; katherine.daniell@gmail.com.
Participatory research relies on stakeholder inputs to obtain its acclaimed benefits of improved social relevance, validity, and actionability of research outcomes. We focus here on participatory research in the context of natural resource management. Participants&amp;#8217; acceptance of participatory research processes is key to their implementation. Our first assumption is that this positive view and acceptance of participation in research processes is a public good for the whole participatory research community. We also assume that the diversity of participatory forms of research is rarely considered by potential participants when they make their decisions about whether or not to participate in a proposed process. We specifically address how to avoid...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Framing; Information flow; Participatory research; Water management.
Ano: 2010

A Framework for Spatial Risk Assessments: Potential Impacts of Nonindigenous Invasive Species on Native Species
Provedor de dados: 7
Autores: Allen, Craig R; USGS  Nebraska Cooperative Fish &amp; Wildlife Research Unit, University of Nebraska; allencr@unl.edu; Johnson, Alan R; Clemson University; alanj@clemson.edu; Parris, Leslie; Clemson University; leslie.parris@us.army.mil.
Many populations of wild animals and plants are declining and face increasing threats from habitat fragmentation and loss as well as exposure to stressors ranging from toxicants to diseases to invasive nonindigenous species. We describe and demonstrate a spatially explicit ecological risk assessment that allows for the incorporation of a broad array of information that may influence the distribution of an invasive species, toxicants, or other stressors, and the incorporation of landscape variables that may influence the spread of a species or substances. The first step in our analyses is to develop species models and quantify spatial overlap between stressor and target organisms. Risk is assessed as the product of spatial overlap and a hazard index based...
Tipo: Peer-Reviewed article
Palavras-chave: Declining species; Invasive species; Nonindigenous species; Risk assessment; Spatial risk.
Ano: 2006

A framework for the design and analysis of incentive systems for food safety control in supply chains
Provedor de dados: 31
Autores: van Wagenberg,   Coen P.A.; Backus,   Ge B.C.; van der Vorst,   Jack G.A.J.; Urlings,   Bert A.P.
Since 2005 the EU food industry has primary legal responsibility for food safety control. This requires new responsibilities and relationships between government and industry, and between companies. This research presents a framework for incentive systems for food safety control in supply chains. It emphasizes key elements of food safety control from multiple perspectives and provides insights for the design and analysis of incentive systems for food safety control. An incentive system combines inter-company incentive mechanisms with intra-company decision making processes to control a hazard within the legal environment. Incentive mechanisms, which consist of a performance measure and a performance reward, induce companies to use control measures. The...
Tipo: Conference Paper or Presentation
Palavras-chave: Incentive mechanism; Food safety; Supply chain control.; Agricultural and Food Policy.
Ano: 2009
URL: http://purl.umn.edu/58138

A fully validated microbiological assay for daptomycin injection and comparison to HPLC method
Provedor de dados: 60
Autores: Christ,Ana Paula; Machado,Mariana Souto; Ribas,Karla Giacomelli; Schwarzbold,Alexandre Vargas; Silva,Cristiane de Bona da; Adams,Andréa Inês Horn.
abstract Daptomycin (DPT) was the first lipopeptide antibiotic available for commercialization. It is active against gram-positive bacteria, including resistant strains. This work aimed to develop and validate a turbidimetric microbiologic assay to determine daptomycin in an injectable form. A 3x3 design was employed, at concentrations of 1, 2 and 4.0 µg/mL. The microorganism test used was Staphylococcus aureus ATCC 6538p, and Antibiotic Medium 3 was used as the culture medium. Method validation demonstrated that the bioassay was linear (r=0.9995), precise (RSD=2.58%), accurate (recovery 100.48± 2.11%), and robust. Degradation kinetics was also performed in an alkaline medium, indicating that daptomycin degradation follows first order kinetics under these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Daptomycin/determination; Daptomycin injection/quality control; Turbidimetric microbiological assay/quantitative analysis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000400775

A fully validated microbiological assay to evaluate the potency of ceftriaxone sodium
Provedor de dados: 60
Autores: Manfio,Maria Luisa; Agarrayua,Danielle Araújo; Machado,Jaison Carlosso; Schmidt,Cleber Alberto.
Ceftriaxone (CFTX) sodium is a third-generation, broad-spectrum cephalosporin that is resistant to beta-lactamases. An alternative bioassay for the assessment of the potency of this drug in pharmaceutical formulations has not been previously reported. Thus, this paper reports the development and full validation of a 3 x 3 agar diffusion bioassay using a cylinder-plate method to quantify CFTX sodium in pharmaceutical samples. The strain Staphylococcus aureus ATCC 6538P was used as the test microorganism, and the results of the proposed bioassay displayed high linearity, precision, accuracy, specificity and robustness. All potency results were statistically analyzed using an analysis of variance (ANOVA) and were found to be linear (r=0.99999) in the range of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ceftriaxone/agar diffusion assay; Ceftriaxone/quality control; Ceftriaxone/microbiological assay; Drugs/quality control.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502013000400015

A functional dissociation of conflict processing within anterior cingulate cortex
Provedor de dados: 17
Autores: Chobok Kim; James Kroger; Jeounghoon Kim.
Goal-directed behavior requires cognitive control to regulate neural processing when conflict is encountered. The dorsal anterior cingulate cortex (dACC) has been associated with detecting response conflict during conflict tasks. However, recent findings have indicated not only that two distinct subregions of dACC are involved in conflict processing but also that the conflict occurs at both perceptual and response levels. We clarified a functional dissociation of the caudal dACC (cdACC) and the rostral dACC (rdACC) in responding to different sources of conflict. The cdACC was selectively engaged in perceptual conflict whereas the rdACC was more active in response conflict. Further, the dorsolateral prefrontal cortex (DLPFC) was coactivated not with cdACC...
Tipo: Manuscript
Palavras-chave: Neuroscience.
Ano: 2008
URL: http://precedings.nature.com/documents/2505/version/1

A functional study of caustic strictures of the esophagus in children
Provedor de dados: 56
Autores: Da-Costa-Pinto,E.A.L.; Dorsa,T.K.; Altimani,A.; Andreollo,N.A.; Cardoso,S.R.; Morais,D.J.; Bustorff-Silva,J.M.
The objective of the present study was to assess esophageal motor function in 21 children (7.5 ± 2.9 years) with caustic strictures. Esophageal manometry was performed using a water-infusion system interfaced with a polygraph and displayed on a computer screen. The data were compared with those obtained from 9 healthy children. Radionuclide transit was determined by studying deglutition of a single bolus of 99mTc pertechnetate in 10 ml of water. Non-peristaltic low-amplitude and long-duration waves were the most common findings detected in patients with strictures longer than 20% of esophageal length (N = 11). Compared with the control group, these patients presented lower mean amplitude and longer mean duration of waves (24.4 ± 11.2 vs 97.9 ± 23.7 mmHg, P...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caustic esophagitis; Esophageal dysfunction; Manometry; Esophageal transit.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004001100005

A Future for the Dead Sea Basin: Water Culture among Israelis, Palestinians and Jordanians
Provedor de dados: 31
Autores: Lipchin,   Clive.
The Dead Sea basin plays a major role for regional economic development (industry, tourism and agriculture) in the Middle East. This potential is threatened by the steady disappearance of the Dead Sea. Since around 1930 the water level of the Dead Sea has fallen by about 25 m, about half of this alone in the last 20 years. The Dead Sea is a transboundary resource shared by Israel, the Palestinian Authority and Jordan. The Dead Sea is the terminal point of the Jordan River watershed and as such, it serves as a barometer for the health of the overall system. Its rapid decline reflects the present water management strategies of the riparian and upstream countries. This includes the different water cultures of the three countries.  Throughout history, the Dead...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/12135

A general framework for indicator design and use with application to the assessment of coastal water quality and marine protected area management
Provedor de dados: 5
Autores: Beliaeff, Benoit; Pelletier, Dominique.
Environmental management decisions based upon indicators are the end point of a process involving stakeholders and scientists. These steps should be explicit and follow a chronology. This paper presents a general framework for the design and use of management-oriented indicators, integrating management questions and performance criteria. We first examined the desirable characteristics of indicators aimed at providing decision-support for marine environmental management. Ideally, one should select the indicator that guarantees a safe and unambiguous decision leading to the appropriate measures in terms of regulation, remediation or control. In the present study, indicators are assessed according to two criteria: relevance and effectiveness. Relevance...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00032/14331/11638.pdf

A genetic variant in microRNA-146a is associated with sporadic breast cancer in a Southern Brazilian Population
Provedor de dados: 74
Autores: Brincas,Heloisa Magagnin; Augusto,Danillo G.; Mathias,Carolina; Cavalli,Iglenir João; Lima,Rubens Silveira de; Kuroda,Flávia; Urban,Cícero de Andrade; Gradia,Daniela Fiori; de Oliveira,Jaqueline; de Almeida,Rodrigo Coutinho; Ribeiro,Enilze Maria de Souza Fonseca.
Abstract MicroRNAs (miRNAs) play an essential role in gene expression and affect the development of tumours, including breast cancer (BC). Polymorphisms in miRNA genes can affect the interaction of miRNAs with their target messenger RNA by interfering, creating or disrupting target sites. The single nucleotide polymorphism (SNP) rs2910164, located in the seed region of miR146a, was shown to be associated with BC among different populations. In the present study, we investigated whether rs2910164 is associated with BC in 326 patients and 411 controls from a Brazilian population of predominantly European ancestry. The presence of the allele rs2910164*C was associated with an increased risk of BC (OR=1.4, 95% CI=1.03-1.85, p = 0.03). We also analysed publicly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MiRNA polymorphism; MiR146a; Rs2910164; Breast cancer; Case-control study.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000500103

A geo-electric and gravimetric survey in the delta of the rivers Fluvia and Muga (Gerona), Spain
Provedor de dados: 16
Autores: Geirnaert, W.
In the delta of the rivers Fluvia and Muga, the Quaternary is hydrogeologically the most important deposit. It is underlain by Pliocene marls and clays. From geo-electrical soundings and bore-hole data a map with depth contours of the Quaternary-Pliocene boundary plane was constructed. Near the coast the Quaternary consists of two aquifers. One of the restrictions of the resistivity method is that the second aquifer is too thin in respect to its depth. Therefore only the formation resistivities of the complete Quaternary were calculated. By comparing the map of formation resistivities with maps of the clay percentage and the water resistivities in the Quaternary, prospective areas for waterwinning can be delineated. To the north of the delta, Silurian...
Tipo: Article / Letter to the editor
Ano: 1976
URL: http://www.repository.naturalis.nl/record/505767

A glycoprotein E gene-deleted bovine herpesvirus 1 as a candidate vaccine strain
Provedor de dados: 56
Autores: Weiss,M.; Brum,M.C.S.; Anziliero,D.; Weiblen,R.; Flores,E.F.
A bovine herpesvirus 1 (BoHV-1) defective in glycoprotein E (gE) was constructed from a Brazilian genital BoHV-1 isolate, by replacing the full gE coding region with the green fluorescent protein (GFP) gene for selection. Upon co-transfection of MDBK cells with genomic viral DNA plus the GFP-bearing gE-deletion plasmid, three fluorescent recombinant clones were obtained out of approximately 5000 viral plaques. Deletion of the gE gene and the presence of the GFP marker in the genome of recombinant viruses were confirmed by PCR. Despite forming smaller plaques, the BoHV-1△gE recombinants replicated in MDBK cells with similar kinetics and to similar titers to that of the parental virus (SV56/90), demonstrating that the gE deletion had no deleterious effects...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle pathogen; Immunization; Control; Differential vaccine.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000900843

A grammar-based model of barley including virtual breeding, genetic control and a hormonal metabolic network
Provedor de dados: 26
Autores: Buck-Sorlin, G.; Kniemeyer, O.; Kurth, W.
The incorporation of some genetic and physiological processes in a developmental model of Hordeum vulgare L. (barley) is presented. The model exhibits different hierarchical scales and has been conceived as a Relational Growth Grammar (RGG). RGG is a new formalism that has been developed as an extension of L-Systems and implemented using a new modelling language, eXtended Lsystems (XL). Models written in XL can be executed using the interactive, Java-based modelling platform GroIMP, which has been developed for this purpose. The barley model proper is a set of morphogenetic rules. These are combined with a set of rules representing a metabolic network simulating some key steps of the biosynthesis of gibberellic acid (GA1). The transport of GA1 and GA19 (a...
Tipo: Conference proceedings
Ano: 2007
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1387

A green approach for the quantification of daptomycin in pharmaceutical formulation by UV spectrophotometry
Provedor de dados: 60
Autores: Tótoli,Eliane Gandolpho; Salgado,Hérida Regina Nunes.
abstract Daptomycin is the first approved drug from a new class of antimicrobials, the cyclic lipopeptides, and is a very important antimicrobial agent in current clinical practice. Currently, there are no "green" analytical methods described in the literature to analyze the typical pharmaceutical dosage form of daptomycin. Thus, the aim of this work was to validate an environment-friendly spectrophotometric method in the UV region, for the analysis of daptomycin as a lyophilized powder. Water was used as diluent and the analyses were carried out on a spectrophotometer at 221 nm. The method met all validation requirements of the ICH guidelines, over a concentration range of 6-21 µg mL-1. A Student's t-test demonstrated that the proposed method was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobials/quality control; Daptomycin/determination; Spectrophotometry/UV region/quantitative analysis; Spectrophotometry/green analytical method.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000400811

A GROUP INCENTIVE CONTRACT TO PROMOTE ADOPTION OF BEST MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: DeVuyst,   Eric A.; Ipe,   Viju C.
The control of agricultural nonpoint source pollution is emerging as a priority of state and national pollution control programs. Best management practices (BMPs) are often proposed as a method of control. Many BMPs are perceived by farmers as having economic disadvantages when compared to conventional management systems. In the absence of tougher environmental restrictions on farmer behavior and complete observability of individual farmer actions, it may be necessary to provide economic incentives to encourage farmer adoption of BMPs within environmentally sensitive watersheds. This study investigates the use of a group incentive contract to encourage adoption of BMPs. The idea behind the group incentive contract is to compensate farmers for actual...
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1999
URL: http://purl.umn.edu/30803

A Grow-and-Lock Model for the Control of Flagellum Length in Trypanosomes
Provedor de dados: 5
Autores: Bertiaux, Eloise; Morga, Benjamin; Blisnick, Thierry; Rotureau, Brice; Bastin, Philippe.
Several models have been proposed to explain how eukaryotic cells control the length of their cilia and flagella. Here, we investigated this process in the protist Trypanosoma brucei, an excellent model system for cells with stable cilia like photoreceptors or spermatozoa. We show that the total amount of intraflagellar transport material (IFT, the machinery responsible for flagellum construction) increases during flagellum elongation, consistent with constant delivery of precursors and the previously reported linear growth. Reducing the IFT frequency by RNAi knockdown of the IFT kinesin motors slows down the elongation rate and results in the assembly of shorter flagella. These keep on elongating after cell division but fail to reach the normal length....
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00473/58452/61033.pdf

A Hedonic Pricing Model for German Wine
Provedor de dados: 31
Autores: Schamel,   Guenter.
We develop a hedonic pricing model for German quality wine. Quality indicators for 4,141 wines are sensory awards received at the annual German wine competition and the legally required quality category as well as a set of control variables including regional origin, color, style, and their age at the time of judging. The data confirms that sensory quality awards have a significant and positive price impact. Moreover, we estimate significant relative differences between quality categories, growing regions and most of the control variables.
Tipo: Journal Article
Palavras-chave: Wine; Hedonic pricing models; Reputation; Consumer/Household Economics; Demand and Price Analysis; Marketing.
Ano: 2003
URL: http://purl.umn.edu/97975

A helyi akciócsoportok működése egy országos felmérés tükrében
Provedor de dados: 31
Autores: Kiss,   Krisztian; Szekeresne,   Koteles Rita.
A tanulmányban kérdőíves felmérésünk eredményeire támaszkodva bemutatjuk a 2007-ben megalakult LEADER HACS-ok fontosabb működési jellemzőit. Országos felmérésünkből kiderül, hogy nincsen hagyománya, gyakorlata a fejlesztésekben való együttműködésnek, holott a helyi program végrehajtása nagymértékben múlik a helyi társadalom felkészültségén, az emberek és szervezetek együttműködésén. A HACS-ok által lefedett térségek fejlődését több vonatkozásban a humán erőforrások, a vidéki emberek és közösségeik (az ún. szoft tényezők) hiányosságai gátolják, következésképpen sürgető a humán erőforrások fejlesztése is. A HACS-ok feladatuknak a támogatási források odaítélését tartják, ami fontos, de korántsem elégséges ahhoz, hogy a tőlük elvárt, a helyi vidékfejlesztési...
Tipo: Article
Palavras-chave: Helyi akciócsoportok (HACS-ok); Szubszidiaritás; Együttműködés; Kapacitásépítés; Fenntarthatóság; Local Action Groups (LAG's); Subsidiarity; Cooperation; Capacity building; Sustainability; Agricultural and Food Policy; Community/Rural/Urban Development; Labor and Human Capital; Public Economics.
Ano: 2011
URL: http://purl.umn.edu/119887

A high-fructose diet induces changes in pp185 phosphorylation in muscle and liver of rats
Provedor de dados: 56
Autores: Ueno,M.; Bezerra,R.M.N.; Silva,M.S.; Tavares,D.Q.; Carvalho,C.R.; Saad,M.J.A.
Insulin stimulates the tyrosine kinase activity of its receptor resulting in the tyrosine phosphorylation of pp185, which contains insulin receptor substrates IRS-1 and IRS-2. These early steps in insulin action are essential for the metabolic effects of insulin. Feeding animals a high-fructose diet results in insulin resistance. However, the exact molecular mechanism underlying this effect is unknown. In the present study, we determined the levels and phosphorylation status of the insulin receptor and pp185 (IRS-1/2) in liver and muscle of rats submitted to a high-fructose diet evaluated by immunoblotting with specific antibodies. Feeding fructose (28 days) induced a discrete insulin resistance, as demonstrated by the insulin tolerance test. Plasma...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Fructose; Insulin receptor; Pp185 phosphorylation.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001200004

A high-fructose diet induces insulin resistance but not blood pressure changes in normotensive rats
Provedor de dados: 56
Autores: Bezerra,R.M.N.; Ueno,M.; Silva,M.S.; Tavares,D.Q.; Carvalho,C.R.O.; Saad,M.J.A.; Gontijo,J.A.R.
Rats fed a high-fructose diet represent an animal model for insulin resistance and hypertension. We recently showed that a high-fructose diet containing vegetable oil but a normal sodium/potassium ratio induced mild insulin resistance with decreased insulin receptor substrate-1 tyrosine phosphorylation in the liver and muscle of normal rats. In the present study, we examined the mean blood pressure, serum lipid levels and insulin sensitivity by estimating in vivo insulin activity using the 15-min intravenous insulin tolerance test (ITT, 0.5 ml of 6 µg insulin, iv) followed by calculation of the rate constant for plasma glucose disappearance (Kitt) in male Wistar-Hannover rats (110-130 g) randomly divided into four diet groups: control, 1:3 sodium/potassium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: High-fructose diet; Insulin resistance; Blood pressure; Hypertriglyceridemia; Plasma cholesterol.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000900008

A high-resolution reconstruction of palaeoceanographic conditions in the glacial Southern Ocean (Scotia Sea and Adelie Land Coast)
Provedor de dados: 5
Autores: Collins, Lewis G.
Antarctic sea-ice is a critical component of the climate system, an enhancer of glacial climate and, as recently hypothesised by modelling studies, a potential driver of the millennial scale climate variability that dominated the last glacial cycle (LGC). Unfortunately a severe lack of glacial sea-ice records from the Southern Ocean has so far prevented the testing of this hypothesis with field data. In this thesis, I present detailed reconstructions of Antarctic sea-ice and ocean conditions derived from diatom assemblages and the first application of highly branched isoprenoid biomarkers to glacial sediments. These sea-ice sensitive proxies were measured in high-resolution, glacial sediment cores from the Scotia Sea (Southwest Atlantic, West Antarctica)...
Tipo: Text
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00494/60584/64066.pdf

A Histological Assessment of the Cell Death Induced by Haloperidol on Prefrontal Cortex
Provedor de dados: 77
Autores: Ghanbari,Ali; Kakebaraei,Seyran; Khazaei,Mozafar.
Neuroleptic drugs such as haloperidol has side effects on extrapyramidal pathways. Tardive Dyskinesia is the most important complication. The most characteristic feature of this Tardive Dyskinesia is involuntary movements of mouth and face. In regard to this problem, the induction of gliosis and cell death in the nervous tissue are considered. In this study, adult Sprague-Dawley rats were used as experimental models. Rats were divided into control and experimental groups. The rats were kept in the animal house under standard conditions during experiments. The control rats were intraperitoneally treated with normal saline for 6 days. The experimental samples were treated for the same time with 2, 5 and 10 mg haloperidol. After the trial period, the rats...
Tipo: Journal article
Palavras-chave: Haloperidol; Cerebral cortex; Optical microscopy; Cell death; Rat.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400046

A homolog of the RPS2 disease resistance gene is constitutively expressed in Brassica oleracea
Provedor de dados: 74
Autores: Malvas,Celia C.; Melotto,Maeli; Truffi,Daniela; Camargo,Luis E.A.
In this study, we identified disease resistance gene homologs in Brassica oleracea and assessed their expression in lines resistant and susceptible to Xanthomonas campestris pv. campestris (Xcc). Two DNA fragments of approximately 2.5 kb (BI-16/RPS2 and Lc201/RPS2) were amplified by PCR from two Brassica lines using primers based on an RPS2 homologous sequence previously described in the Brassica oleracea ecotype B117. The sequences of these fragments shared high similarity (95-98%) with RPS2 homologs from various Brassica species. The digestion of these fragments with restriction enzymes revealed polymorphisms at the Xba I restriction sites. The length polymorphisms were used as a co-dominant marker in an F2 population developed to segregate for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Xanthomonas campestris pv. campestris; Disease resistance gene homolog; Black rot.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000400015

A HOUSEHOLD PRODUCTION ANALYSIS OF FUELWOOD DEMAND IN RHODE ISLAND
Provedor de dados: 31
Autores: MacKenzie,   John; Weaver,   Thomas F.
A model analyzing household substitution of fuelwood for other heating fuels is needed to clarify the relationship between energy prices and patterns of forest resource utilization.  This paper employs the household production methodology to model fuelwood demand in Rhode Island.  Data from a cross-sectional survey of 515 households are employed to test a discrete-choice model of household participation in wood-burning and a four-equation system modeling household production of heat and aesthetic benefits from fuelwood and stove capital.  Control of selection bias via inclusion of an appropriate instrument allows analysis of aggregate demands.  Some broad policy prescriptions applicable to the Northeast generally are presented.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1986
URL: http://purl.umn.edu/28884

A hybrid zone of two toad sister species, Rhinella atacamensis and R. arunco (Anura: Bufonidae), defined by a consistent altitudinal segregation in watersheds
Provedor de dados: 97
Autores: CORREA,CLAUDIO; MÉNDEZ,MARCO A; ARAYA,SERGIO; LOBOS,GABRIEL; PALMA,R. EDUARDO.
Delimiting the spatial extension of a hybrid zone is essential to understand its historical origin and to identify the geographical and/or environmental factors which delimit it. Rhinella atacamensis and R. arunco are two sister species which together inhabit Chile between 25° and 38° S. Their distribution limits coincide at about 32° S, where recently it was reported that they hybridize in a small watershed (Pupío creek). Although the genetic evidence suggests that these two species form a hybrid swarm, they are not mixed homogeneously in the entire watershed, but rather are spatially segregated: R. arunco is found in the lower part of the creek and R. atacamensis in the higher part. An extensive exploration north and south of 32° S revealed other...
Tipo: Journal article
Palavras-chave: AFLP markers; Chile; Control region; Hybridization; Toads.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2013000200001

A ideologia da sociedade industrial
Provedor de dados: 121
Autores: por Hebert Marcuse; Marcuse, Hebert.
Tipo: Text
Palavras-chave: SOCIEDADE INDUSTRIAL; CONTROL SOCIAL.
Ano: 1967
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=12997&tab=opac&oai:flacso.org.ec:12997

A importância do controle de qualidade de sementes.
Provedor de dados: 14
Autores: COSTA, C. J.
bitstream/item/75776/1/art-026.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Semente; Controle de qualidade; Seeds; Quality control.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571758

A importância do controle financeiro em um sistema de informações gerenciais numa fazenda.
Provedor de dados: 14
Autores: VELOSO, R. F.; FERNANDES, F. B.; BARIONI, L. G.; COLOCA, A.
RESUMO: A necessidade de dados para avaliação financeira e econômica de tecnologias agropecuárias e de aperfeiçoamento de procedimentos gerenciais de fazendas, por meio de recursos de informática, levou a Embrapa Cerrados à proposição de um sistema de informações gerenciais para fazendas em parceria com dois produtores familiares e um agrônomo autônomo. Dois estudos de caso em fazendas, na região sul goiana, vêm fundamentando o processo de criação de protótipo do sistema. Utilizando-se do Microsoft Access, foram desenvolvidos os módulos de controle financeiro, de custos, de estoques e de análise de resultados. Módulos de controle de máquinas, de pessoal, do rebanho e de mapas georreferenciados encontram-se em desenvolvimento. Na especificação do módulo de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Produtor rural; Contabilidade de custos; Administration; Strategic planning; Cost accounting.; Administração Rural; Desenvolvimento Rural; Planejamento Estratégico.; Farmers; Farms; Rural development.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/570340

A lack of association between adiponectin polymorphisms and coronary artery disease in a Chinese population
Provedor de dados: 74
Autores: Zhong,Chen; Zhen,Ding; Qian,Qi; Genshan,Ma.
We investigated the association between two single nucleotide polymorphisms (SNPs) in the adiponectin gene (rs822395 and rs266729) and coronary artery disease (CAD) in a case-control study of 198 unrelated Chinese CAD patients (with ; 70% coronary stenosis or previous myocardial infarction) and 237 non-CAD controls. The ligase reaction was used to detect SNPs rs822395 and rs266729, and the allelic association of these SNPs with the occurrence and severity of CAD was assessed. There were no significant differences in the genotypic or allelic frequencies of the two SNPs between control and CAD individuals. In addition, there was no association between the two SNPs and the severity of CAD based on the number of diseased vessels. The frequencies of alleles C...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adiponectin gene; Coronary artery disease; Single nucleotide polymorphisms.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300005

A Lactobacillus rhamnosus strain induces protection in different sites after Salmonella enterica subsp. enterica serovar Typhimurium challenge in gnotobiotic and conventional mice
Provedor de dados: 45
Autores: Mendonça,A.H.; Cerqueira,M.M.O.P.; Nicoli,J.R.; Sousa,S.M.M.; Nardi,R.M.D.; Souza,F.N.; Fonseca,L.M.; Leite,M.O.; Arantes,R.M.E.
The ability of a Lactobacillus rhamnosus strain isolated from a healthy breast-fed human newborn to reduce the pathological consequences for the host due to an experimental oral infection with Salmonella enterica subsp. enterica serov. Typhimurium in vivo was determined using gnotobiotic and conventional mice. Conventional mice received 0.1mL probiotic milk (8.0 log colony-forming unit) daily for 10 days before the oral pathogenic challenge (5.0 log colony-forming unit). Then probiotic treatment was continued until the end of the experiment. Probiotic treatment in germ-free mice consisted of a single dose of the probiotic milk at the beginning of the experiment and a challenge with S. Typhimurium 10 days later (3.0 log colony-forming unit). A protective...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intestinal infection; Lactobacilli; Probiotics; Salmonella.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000200004

A larva minadora dos citros (Phyllocnistis citrella).
Provedor de dados: 14
Autores: SILVA, A. de B.
bitstream/item/34120/1/CPATU-CirTec71.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Controle de praga; Larfa minadora; Phyllonistis citrella; Pará; Brasil.; Fruta Cítrica; Laranja.; Amazonia; Citrus fruits; Oranges; Pest control.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376734

A leprose dos citros em Rondônia: caracterização e recomendações de manejo.
Provedor de dados: 14
Autores: TEIXEIRA, C. A. D.; RODRIGUES, V. G. S.; AVILES, D. P.; FERREIRA, M. das G.
Apresenta informacoes gerais sobre a doenca, seu acaro transmissor e seu controle. O objetivo e colocar a disposicao dos extensionistas informacoes que permitam o menejo da praga e, consequentemente, da doenca.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Red and black flat mite; Rondônia; Amazônia Ocidental; Western Amazon.; Doença de Planta; Leprose Cítrica; Ácaro; Manejo; Brevipalpus Phoenicis; Transferência de Tecnologia.; Controle Químico; Citrus; Plant diseases and disorders; Acarus; Chemical control; Technology transfer.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699894

A leucine-supplemented diet improved protein content of skeletal muscle in young tumor-bearing rats
Provedor de dados: 56
Autores: Gomes-Marcondes,M.C.C.; Ventrucci,G.; Toledo,M.T.; Cury,L.; Cooper,J.C.
Cancer cachexia induces host protein wastage but the mechanisms are poorly understood. Branched-chain amino acids play a regulatory role in the modulation of both protein synthesis and degradation in host tissues. Leucine, an important amino acid in skeletal muscle, is higher oxidized in tumor-bearing animals. A leucine-supplemented diet was used to analyze the effects of Walker 256 tumor growth on body composition in young weanling Wistar rats divided into two main dietary groups: normal diet (N, 18% protein) and leucine-rich diet (L, 15% protein plus 3% leucine), which were further subdivided into control (N or L) or tumor-bearing (W or LW) subgroups. After 12 days, the animals were sacrificed and their carcass analyzed. The tumor-bearing groups showed a...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Leucine; Amino acid; Walker 256 carcinosarcoma; Body composition; Skeletal muscle protein.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001100017

A Limited Dependent Variable Analysis of Integrated Pest Management Adoption in Uganda
Provedor de dados: 31
Autores: Kasenge,   Valentine; Taylor,   Daniel B.; Bonabana-Wabbi,   Jackline.
In Uganda overall crop loss due to pests exceeds that caused by drought, soil infertility, or poor planting material. Integrated Pest Management (IPM) technologies can reduce pest damage to crops by emphasizing non-chemical control methods thereby reducing potential negative effects of chemicals on the environment while preserving profitability. This study investigates the adoption of eight IPM practices including intercropping, crop rotation, two improved varieties, incorporating an '‘exotic weed chaser'’, optimal planting dates, optimal planting density and fertilizer use. Variables include market forces, social factors, management factors, and technology delivery mechanisms. Results were consistent across the multivariate logit and ordered logit...
Tipo: Conference Paper or Presentation
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 2006
URL: http://purl.umn.edu/21040

A link between the hippocampal and the striatal memory systems of the brain
Provedor de dados: 42
Autores: Rossato,Janine I.; Zinn,Carolina G.; Furini,Cristiane; Bevilaqua,Lia R.M.; Medina,Jorge H.; Cammarota,Martín; Izquierdo,Iván.
Two major memory systems have been recognized over the years (Squire 1987): the declarative memory system, which is under the control of the hippocampus and related temporal lobe structures, and the procedural or habit memory system, which is under the control of the striatum and its connections. Most if not all learning tasks studied in animals, however, involve either the performance or the suppression of movement; this, if learned well, may be viewed as having become a habit. It is agreed that memory rules change from their first association to those that take place when the task is mastered. Does this change of rules involve a switch from one memory system to another? Here we will comment on: 1) reversal learning in the Morris water maze (MWM), in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hippocampus; Striatum; Declarative memory; Procedural memory; Habits; Learning.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000300011

A literature review as an aid to identify strategies for mitigating ostreid herpesvirus 1 in Crassostrea gigas hatchery and nursery systems
Provedor de dados: 5
Autores: Rodgers, Chris; Arzul, Isabelle; Carrasco, Noèlia; Furones Nozal, Dolores.
An understanding of husbandry strategies and any associated risk factors is important for designing management control measures that can reduce mortality in Pacific oysters, Crassostrea gigas, caused by ostreid  herpesvirus 1 (OsHV-1). The type of culture facility can be considered in relation to the potential pathways that could lead to the entry of a pathogen and its survival. In addition, the animal host (e.g. age, physiological state,  selective breeding programmes), husbandry procedures (e.g. stocking density), the pathogen itself (e.g. pathogenicity, virulence) and environmental effects (e.g. temperature) represent other relevant interconnected factors. However, all these factors provide valuable background information for outlining the mitigation...
Tipo: Text
Palavras-chave: Crassostrea gigas; Husbandry; Management strategies; Ostreid herpesvirus 1; Oyster herpesvirus; Risk factors.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00474/58581/61146.pdf

A longitudinal study of Babesia and Theileria infections in cattle in Sri Lanka
Provedor de dados: 19
Autores: Sivakumar, Thillaiampalam; Kothalawala, Hemal; Weerasooriya, Gayani; Seekkuge Susil Priyantha Silva; Puvanendiran, Sumathy; Munkhjargal, Tserendorj; Igarashi, Ikuo; Yokoyama, Naoaki.
Throughout the world, infections with the Babesia and Theileria parasites often result in economically significant clinical disease in cattle. We conducted a longitudinal survey of Babesia and Theileria infections in cattle from the Polonnaruwa (n?=?75; dry zone) and Nuwara Eliya (n?=?161; wet zone) districts of Sri Lanka. DNA from blood samples collected in June, September, and December 2014 and March 2015 was screened for Babesia bovis, Babesia bigemina, Theileria annulata and Theileria orientalis using specific polymerase chain reactions (PCRs). Additionally, serum samples collected from the animals were screened using enzyme-linked immunosorbent assays (ELISAs) to detect B. bovis- and B. bigemina-specific antibodies. All of the animals surveyed in...
Palavras-chave: Babesia; Cattle; Longitudinal study; Sri Lanka; Theileria.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4567

A  Longitudinal Study of Mastitis on an Experimental Farm with Two Herds, One Managed Organically, the other Conventionally
Provedor de dados: 21
Autores: Thatcher, A; Petrovski, K; Holmes, C; Dowson, K; Kelly, T; McLeod, K.
Mastitis in two herds managed as a comparison between organic and conventional dairy farming systems was monitored for 4 years utilising regular bacterial culture of milk samples, individual and bulk somatic cell counts and observation by farm staff. The objective was to develop strategies for the control of mastitis in organic cows without the use of antibiotics. The herds showed differences in clinical mastitis incidence, subclinical mastitis prevalence and bulk milk somatic cell count. Despite these differences, the level of mastitis in the organic herd remained manageable.
Tipo: Conference paper, poster, etc.
Palavras-chave: Dairy cattle; Health and welfare.
Ano: 2008
URL: http://orgprints.org/11559/1/Thatcher_11559_ed.doc

A low concentration of ouabain (0.18 µg/kg) enhances hypertension in spontaneously hypertensive rats by inhibiting the Na+ pump and activating the renin-angiotensin system
Provedor de dados: 56
Autores: Siman,F.D.M.; Stefanon,I.; Vassallo,D.V.; Padilha,A.S.
We investigated the effects of low ouabain concentrations on systolic (SAP) and diastolic (DAP) arterial pressures and on pressor reactivity in 3-month-old male spontaneously hypertensive rats (SHR). Arterial blood pressure (BP) and pressor reactivity to phenylephrine (PHE) were investigated before and after 0.18 μg/kg ouabain administration (N = 6). The influence of hexamethonium (N = 6), canrenone (N = 6), enalapril (N = 6), and losartan (N = 6) on ouabain actions was evaluated. Ouabain increased BP (SAP: 137 ± 5.1 to 150 ± 4.7; DAP: 93.7 ± 7.7 to 116 ± 3.5 mmHg; P&lt;0.05) but did not change PHE pressor reactivity. Hexamethonium reduced basal BP in control but not in ouabain-treated rats. However, hexamethonium + ouabain increased DAP sensitivity to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ouabain; Hypertension; Na+ pump; Renin-angiotensin system.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000800010

A low-protein, high carbohydrate diet induces increase in serum adiponectin and preserves glucose homeostasis in rats
Provedor de dados: 42
Autores: CEOLIN,PATRÍCIA; FRANÇA,SUÉLEM A. DE; FROELICH,MENDALLI; SANTOS,MAÍSA P. DOS; PEREIRA,MAYARA P.; QUEIROZ,THAÍS S.; SILVA,FLÁVIA H.S. DA; LISBOA,PATRÍCIA C.; ANDRADE,CLAUDIA M.B.; BAVIERA,AMANDA M.; KAWASHITA,NAIR H.
Abstract: The aim of this study was investigate the effects of a low-protein, high-carbohydrate (LPHC) diet introduced to rats soon after weaning. The animals were distributed in the following groups: LPHC45: fed an LPHC diet (6%-protein, 74%-carbohydrate) for 45 days; C45: fed a control (C) diet (17%-protein, 63%-carbohydrate) for 45 days; R (Reverse): fed with LPHC for 15 days followed by C diet for 30 days. The LPHC45 group showed alterations in the energetic balance with an increase in brown adipose tissue, and in glucose tolerance, and lower final body weight, muscle mass and total protein in blood when compared with C45 group. The HOMA-IR index was similar between LPHC45 and C45 groups, but this parameter was lower in LPHC45 compared with R groups....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Low-protein; High-carbohydrate diet; Post-weaning period; HOMA-IR; Adiponectin.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300714

A lung image reconstruction from computed radiography images as a tool to tuberculosis treatment control
Provedor de dados: 80
Autores: Oliveira,Marcela de; Duarte,Sergio Barbosa; Giacomini,Guilherme; Pereira,Paulo Câmara Marques; Souza,Lenice do Rosário de; Miranda,José Ricardo de Arruda; Pina,Diana Rodrigues de.
Abstract  Background: Background: Tuberculosis (TB) is an infectious lung disease with high worldwide incidence that severely compromises the quality of life in affected individuals. Clinical tests are currently employed to monitor pulmonary status and treatment progression. The present study aimed to apply a three-dimensional (3D) reconstruction method based on chest radiography to quantify lung-involvement volume of TB acute-phase patients before and after treatment. In addition, these results were compared with indices from conventional clinical exams to show the coincidence level.  Methods: A 3D lung reconstruction method using patient chest radiography was applied to quantify lung-involvement volume using retrospective examinations of 50 patients who...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuberculosis; Quantification; Lung involvement; Serum tests; Pulmonary function tests.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992019000100302

A management strategy evaluation framework for Mediterranean Atlantic bluefin tuna
Provedor de dados: 5
Autores: Kell, L. T.; Fromentin, Jean-marc.
This paper presents an example of Management Strategy Evaluation (MSE) for Mediterranean and East Atlantic bluefin tuna using the FLR open source framework. Scenarios corresponding to alternative plausible hypotheses about the stock dynamics were used to evaluate alternative management strategies and to test their robustness to implementation error e.g. catch mis-reporting. The strategies evaluated correspond to i) harvest control rule (HCR) based upon F0.1 (a proxy for FMSY ) with an objective of restoring the stock to a level that would “ permit the maximum sustainable catch” and ii) a reduction of fishing mortality on immature fish. The main conclusions were that the F0.1 HCR alone would not result in the recovery of the stock in the next 15 years and...
Tipo: Text
Palavras-chave: Thunnus thynnus; Management plans; Management strategy evaluation; Simulation model.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00194/30477/28884.pdf

A mancha por cercospora em milho.
Provedor de dados: 14
Autores: FERNANDES, F. T.; OLIVEIRA, E. de.
bitstream/item/53456/1/ct-16.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Maize; Diplodia macrospora; Disease; Fungus; Control.; Doença; Fungo; Milho; Zea Mays.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/484065

A “masculinização” da produção de leite
Provedor de dados: 31
Autores: Magalhaes,   Reginaldo Sales.
The strengthening of social organizations that made it possible for dairy production to become a market-driven activity has brought about deep changes in the sexual division of labour. The sociological analysis of the changes in family-farming intra-household roles shows that cultural traditions, gender-related power gaps, and social contexts that further deepen differences in market access between men and women are the social and cultural foundations of a hierarchy structured according to sex and generation, where women, especially the youngest, occupy greatly disadvantageous positions. With the strengthening of cooperatives, dairy production began to occupy a rather important role in providing resources to the household, yet the control over the activity...
Tipo: Journal Article
Palavras-chave: Gender; Markets; Economic sociology.; Agribusiness; Z1; Z13.
Ano: 2009
URL: http://purl.umn.edu/60822

A mathematic model for the interaction between Meloidogyne spp. and Pasteuria penetrans
Provedor de dados: 100
Autores: Miranda,Ileana; Gómez,Lucila; Benítez,Hugo L.; Castillo,Yoannia; Hernández-Ochandía,Dainé; Rodríguez,Mayra G.
Some aspects of Meloidogyne spp. (root-knot nematode) growth regulation by the gram-negative bacterium Pasteuria penetrans were reviewed. The study allowed the construction of a mathematical model to predict the dynamics of both organisms. The model includes 11 differential equations and 31biological constants describing the life-cycle of the nematode and its relationship with the bacterium. To simulate the real behavior of the populations, the constants, which represent biological parameters, have to be evaluated under controlled conditions similar to those of soil microcosm.
Tipo: Journal article
Palavras-chave: Bio-mathematics; Meloidogyne; Pasteuria penetrans; Biological control; Biomatemática; Meloidogyne; Pasteuria penetrans; Control biológico.
Ano: 2014
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522014000200011

A mathematical approach estimating source and sink functioning of competing organs
Provedor de dados: 26
Autores: Kang, M.Z.; De Reffye, P.
Plant growth and development depend on both organogenesis and photosynthesis. Organogenesis sets in place various organs (leaves, internodes, fruits, roots) that have their own sinks. The sum of these sinks corresponds to the plant demand. Photosynthesis of the leaves provides the biomass supply (source) that is to be shared among the organs according to their sink strength. Here we present a mathematical model – GreenLab – that describes dynamically plant architecture in a resource-dependent way. The source and sink functions of the various organs control the biomass acquisition and partitioning during plant development and growth, giving the sizes and weights of organs according to their position in the plant architecture. Non-linear least-square method...
Tipo: Conference proceedings
Ano: 2007
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1372

A MATHEMATICAL MODEL FOR DEVELOPING ETHNO-BIOLOGICALLY DIVERSE TROPICAL FORESTS
Provedor de dados: 31
Autores: Brazee,   Richard J.; Southgate,   Douglas.
This paper presents a dynamic optimal control model describing the benefits and costs associated with the development of tropical forests rich in plant and animal species and folk knowledge.  The model is a framework to assess how various market and institutional incentives might influence both deforestation and the collection of "ethno-biological information."
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1993
URL: http://purl.umn.edu/11895

A Mathematical model for the cold storage of agricultural products
Provedor de dados: 124
Autores: Meneghetti,Carlos Renato; Tizzei,Alexandre; Cappelli,Nelson Luis; Umezu,Claudio Kiyoshi; Bezzon,Guilherme.
Studies of control strategies for refrigeration systems observe, among other variables, the dynamic behavior of temperature and the consumption of electrical energy. Aiming to contribute to these studies, this work presents the proposal and validation of a mathematical model for the cooling system of a cold-storage unit. The model approximates the dynamics and interdependence of the variables, to first-order systems with time delay and the summation of effects. The input variables available are the frequency of compressor activation and the thermal load imposed on the unit, and as output variables, the air temperature both at the evaporator inlet and at the centre of the chamber, as well as the electrical power consumed by the compressor. The results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Variable rotation; Simulation; Agricultural products-storage; Electrical energy-consumption.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000200010

A Mechanism of Excessive Accumulation of Abomasal Gas in Vagotomized Cattle Determined using Fluoroscopy
Provedor de dados: 19
Autores: ITOH, Megumi; SASAKI, Naoki; KAWAMOTO, Satoshi; YAMADA, Haruo; INOKUMA, Hisashi; 佐々木, 直樹; 猪熊, 壽.
To better understand the mechanism of excessive gas accumulation in the abomasum in bovine abomasal displacement, we performed gastric fluoroscopy in vagotomized cattle. Fifteen 6-month-old Holstein steers were divided into three groups: a non-vagotomized control group (Group C; n=5), a ventral thoraco-vagotomized group (Group V; n=5), and a dorsal and ventral thoraco-vagotomized group (Group DV; n=5). These groups were examined by fluoroscopy before and during a 5-week observation period after surgery. In Group C, no change was observed throughout the observation period. In Group DV, immediately after surgery, reticuloruminal motility was completely absent and ruminal distention was seen. Two weeks after surgery, abnormal reticulum motility and increased...
Palavras-chave: Abomasum gas; Cattle; Displaced abomasum; Vagotomy.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3888

A Mechanism Study of NMDAR1 in A Rat Alzheimer Disease (AD) Model
Provedor de dados: 52
Autores: Peng,Tianzhong; Huang,Xuedi; Hu,Suifa; Xie,Gui; Zhou,Cheng; Xiong,Jia; Liu,Rui.
ABSTRACT This study aimed to investigate the expression and mechanism of N- methyl -D- aspartate receptor 1 (NMDAR1) in the pathogenesis of Alzheimer disease (AD). Eighty adult Wistar rats were randomly divided into 4 groups (n=20 each) to receive an injection of 0, 5, 7 and 10 μl of 1 μg/μl amyloid-β 42 (Aβ1-42) in the hippocampus. Twenty rats in normal control group were injected with equal volume of saline. After 10 days, the hippocampus was isolated from 5 randomly selected rats in each group. The NMDAR1 protein and mRNA expression was determined by immunohistochemical staining and qRT-PCR. The aquaporin-1 (AQP-1) mRNA expression was also measured by qRT-PCR. We found that both NMDAR1 and AQP-1 expression in Aβ1-42 groups was increased in a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: NMDAR1; Alzheimer disease; Aquaporin; AQP-1.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100435

A method of determining cut position of automatic stem removal system for salted wakame
Provedor de dados: 111
Autores: Yimit, Adiljan; Takagi, Motoki; Hagihara, Yukari; Miyoshi, Tasuku; Hagihara, Yoshihiro.
In the wakame manufacturing procedure, the manual operation process of stem removal is known to hinder the production process. In order to solve this problem, the manufacture aspires to develop an automatic wakame stem removal system. The purpose of this paper is to propose a cut position detection method for the system by picking up the characteristic changes that appear at the cross section of the wakame. In this method, with the utilization of exposure control, two images are captured from the same cross section that is made by a developed device. These images are used in the segmentation of the cross section. The positions where the stem should be cut can then be determined through the examination of the thickness of the cross section. To test the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marine algae; Wakame; Automation; Stem removal; Exposure control and segmentation.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2888

A METHODOLOGICAL BASIS FOR THE EVALUATION OF MARKETING LOSSES OF FOODS IN DEVELOPING COUNTRIES
Provedor de dados: 31
Autores: Silva,   Carlos Arthur Barbosa da.
The shortage of food for a substantial proportion of the world's population is a problem which has been challenging our society for a long time.  In the 1972-1974 period an estimated 1.3 billion people subsisted in less developed countries with dietary energy supplies under the minimum nutritional requirements, and the current outlook is for a widening gap between needs and food supplies.  Although progress has been made in production oriented research, such as the development of high yielding crop varieties and of better way to control pests and diseases, there is still a need for additional means to increase the world food supply.  The objectives of this paper are as follows: 1) to define the problems and its relevance for developing countries; 2) to...
Tipo: Thesis or Dissertation
Palavras-chave: Marketing.
Ano: 1979
URL: http://purl.umn.edu/10996

A Methodological Framework to Design and Assess Food Traceability Systems
Provedor de dados: 31
Autores: Bendaoud,   Mhamed; Lecomte,   Catherine; Yannou,   Bernard.
The International Food and Agribusiness Management Review is published quarterly by IFAMA. www.ifama.org
Tipo: Article
Palavras-chave: Traceability; Food tracing; Food safety; Performance system; Information system; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies; Risk and Uncertainty; L66; Q.
Ano: 2012
URL: http://purl.umn.edu/120861

A MEZEI NYÚL GAZDÁLKODÁS AKTUÁLIS HELYZETE ÉS SZÜKSÉGES FEJLESZTÉSE
Provedor de dados: 31
Autores: Kelemen,   Jozsef; Szemethy,   Laszlo; Biro,   Zsolt.
Hazánk Európai Uniós csatlakozása után várható, hogy a kedvezőtlen adott-ságú mezőgazdaságilag művelt területek jelentős része kikerül a mezőgazdasági művelésből. Ezek a földterületek apróvad-gazdálkodás céljaira rendkívül jól hasznosíthatók. Ezeknek a létrehozásához ki kell dolgozni a megfelelő támogatási rendszert. (Az eddig ismert programok között a vadgazdálkodás csupán csak széljegyzetként szerepelt.) A vadgazdálkodási alap élőhely-fejlesztési támogatásait hosszú távra célszerű megtervezni. A hatékonyság mérése érdekében korszerű létszámbecslést és az ezekből származtatott hasznosítás-tervezést indokolt alkalmazni. A jelenleg folytatott folyamatos hasznosítási gyakorlattal szemben az állo-mány létszámváltozásait követő hasznosítás szükséges. Ehhez meg...
Tipo: Journal Article
Palavras-chave: Vadásztársaságok feladat; Mgyarország; Tasks of hunting associations; Hungary; Agribusiness; Community/Rural/Urban Development; Livestock Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/54861

A Michaelis–Menten type equation for describing methylmercury dependence on inorganic mercury in aquatic sediments
Provedor de dados: 5
Autores: Cossa, Daniel; Garnier, Cedric; Buscail, Roselyne; Elbaz-poulichet, Francoise; Mikac, Nevenka; Patel-sorrentino, Nathalie; Tessier, Erwan; Rigaud, Sylvain; Lenoble, Veronique; Gobeil, Charles.
Methylation of mercury (Hg) is the crucial process that controls Hg biomagnification along the aquatic food chains. Aquatic sediments are of particular interest because they constitute an essential reservoir where inorganic divalent Hg (HgII) is methylated. Methylmercury (MeHg) concentrations in sediments mainly result from the balance between methylation and demethylation reactions, two opposite natural processes primarily mediated by aquatic microorganisms. Thus, Hg availability and the activity of methylating microbial communities control the MeHg abundance in sediments. Consistently, some studies have reported a significant positive correlation between MeHg and HgII or total Hg (HgT), taken as a proxy for HgII, in aquatic sediments using...
Tipo: Text
Palavras-chave: Mercury; Methylmercury; Aquatic sediment; Methylation; Demethylation.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00171/28220/26520.pdf

A MINŐSÉGMENEDZSMENT A HAZAI BAROMFI-FELDOLGOZÁSBAN
Provedor de dados: 31
Autores: Mikaczo,   Andrea.
A vizsgálatok alapján megállapítható, hogy a magyar baromfi-feldolgozó iparág megfelelően teljesíti mind a hazai, mind az EU-s előírásokat, követelményeket. Az élelmiszerbiztonsági előírásoknak való megfelelés valamennyi érintett vállalkozásban elsődleges szempont. A magas minőségi színvonal elérésére és teljesítésére irányuló további módszereket, mint pl. az integrált menedzsment irányítási rendszereket is alkalmazzák a vállalkozások, de az ezekre való törekvést nem a vállalat belső igénye, hanem a piac indukálja. Remélhetőleg a jövőben egyre több élelmiszeripari vállalkozás ismeri fel az ISO 22000 szabvány alkalmazásának előnyeit, ami ötvözi a HACCP és az ISO 9001 alkalmazását, és kifejezetten az élelmiszeripari termelésre specializált szabványként...
Tipo: Journal Article
Palavras-chave: Élelmiszerbiztonság; Minőség; Menedzsment; Irányítási rendszer; Food security; Quality; Management; Control system; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Livestock Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/57665

A MIXED INTEGER LINEAR PROGRAMMING EVALUATION OF SALINITY AND WATERLOGGING CONTROL OPTIONS IN THE MURRAY-DARLING BASIN OF AUSTRALIA
Provedor de dados: 31
Autores: Alaouze,   Chris M.; Fitzpatrick,   Campbell R.
Pollution of the River Murray by salt imposes costs on domestic and industrial users in Adelaide and to irrigators on the River Murray. Salt enters the Murray-Darling system through saline ground water aquifers and from irrigation and drainage of saline land. Irrigation and drainage generate benefits from improved agricultural productivity and impose costs through increased salt loads to the Murray-Darling system. The salinity of the River Murray can be reduced by pumping highly saline ground water into evaporation basins before it enters the River Murray. This paper presents a mixed integer linear programming model which is used to determine the mix of ground water interception schemes and land improvement schemes that minimises the net present value...
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; Land Economics/Use.
Ano: 1989
URL: http://purl.umn.edu/22996

A Mixture of Experts Model to Explain Households' Choice Patterns for Termite Control Options in Louisiana
Provedor de dados: 31
Autores: Paudel,   Krishna P.; Pandit,   Mahesh; Dunn,   Michael A.; Amatya,   Vinaya.
Tipo: Conference Paper or Presentation
Palavras-chave: Consumer/Household Economics.
Ano: 2011
URL: http://purl.umn.edu/103874

A model for the study of skeletal anomalies in rat fetuses
Provedor de dados: 52
Autores: Effting,Cristiane; Paula,Daniel Jesus de; Nunes Junior,Guilhermino Pereira.
The aim of this study was to validate a model of skeletal anomalies in rat fetuses by the administration of ketoconazole (80 mg/kg) to pregnant rats during organogenesis. Bones of the head, trunk and anterior and posterior limbs were examined for detection of anomalies. Statistical differences regarding the number of fetuses and postimplantation resorptions, and fetal and placental weight were significant. The frequency of skeletal anomalies in the head, trunk, and anterior and posterior limbs in the ketoconazole-treated group were also significant when compared to the control group. It could be concluded that the model suggested was valid for study of skeletal anomalies and abnormal bones development in rat fetuse, in spite of the loss of fetuses due to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Azol Antifungals; Ketoconazole; Models; Pregnancy; Skeletal Malformation; Steroids; Teratogenesis; Wistar Rats.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100005

A model of nematode dynamics in the Westerschelde Estuary
Provedor de dados: 27
Autores: Li, J.; Vincx, M.; Herman, P.M.J.
We developed a time dynamic model to investigate the temporal dynamics of nematode community in the brackish zone of the Westerschelde Estuary. The biomass of four nematode feeding groups observed from March 1991 to February 1992 is used to calibrate the model. Using environmental data as the input, the model predicts the temporal modification and interrelation of four nematode feeding groups. Nematodes achieve a dominant position in the community because of their lower loss rate (in respiration, excretion and natural death). Predators which are deposit-feeding macrobenthos control the variations of dominant nematodes, such as omnivores and non-selective deposit feeders. Food availability causes modification only for rare nematodes such as epigrowth...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diatoms; Ecology; Food; Light; Marine nematodes; Meiobenthos; Population dynamics; Predation; Respiration; Temperature; Nematoda [Nematodes].
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7284

A MODEL OF THE ECONOMIC IMPACT OF AFRICAN HORSE SICKNESS TO THE EQUINE BREEDING INDUSTRY IN SOUTH AFRICA
Provedor de dados: 31
Autores: Brooks,   Laura.
A deterministic model for the economic impact of African Horse Sickness (AHS) on the equine breeding industry was developed for South Africa. It was applied to the case of the 2007/2008 outbreak of AHS in the Eastern Cape as a pilot application of the model, using data from breeders in the province. It was concluded that the deterministic model’s extension to include other areas of equine livelihoods could be effective in exposing the need for further research into the control and treatment of AHS in South Africa.
Tipo: Report
Palavras-chave: African horse sickness; Economic impact; South Africa; Environmental Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/107456

A MODEL OF THE IMPLEMENTATION OF QUALITY MANAGEMENT SYSTEMS FOR CREDENCE ATTRIBUTES
Provedor de dados: 31
Autores: Noelke,   Corinna M.; Caswell,   Julie A.
We develop a model of the impact of food quality management systems (QMS) on competitiveness and markets.  QMS seek to control the quality of a product as determined by the array of individual attributes it possesses.  To date only a few studies have attempted to better understand the effect of the introduction of quality management systems.  No model has been introduced which captures the interactions within the supply chain and at the interface with consumers when these systems are introduced. Keywords: Product Quality, Quality Assurance, Supply Chain
Tipo: Conference Paper or Presentation
Palavras-chave: Product Quality; Quality Assurance; Supply Chain; Marketing.
Ano: 2000
URL: http://purl.umn.edu/21874

A model structure for estimating malaria risk
Provedor de dados: 26
Autores: Hoshen, M.B.; Morse, A.P.
Malaria is one of the leading causes of death in the developing world today. While prevention and treatment methods are available, their large-scale usage is a major drain on governmental budgets, and not applied whenever necessary. For this reason, understanding the endemicity of a region will allow the efficient implementation of suitable prevention methods. More importantly, the prediction of extraordinary malaria outbreaks will allow the recruitment of emergency facilities before transmission becomes widespread. In addition, climate change may influence the endemicity pattern of a region, causing malaria incidence to rise in areas in which it was non-existent or controlled. For all these purposes, a seasonal to decadal malaria forecast is needed. A...
Tipo: Conference proceedings
Ano: 2005
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/959

A model-based approach to moral hazard in food chains - What contribution do principal-agent-models make to the understanding of food risks induced by opportunistic behaviour?
Provedor de dados: 31
Autores: Hirschauer,   Norbert.
Food risks may be caused by moral hazard, i.e. by opportunistic behaviour of upstream sellers who exploit the fact that many food product qualities remain uncertain to downstream buyers in the course of conventional market transactions (credence qualities). Due to this lack of market transparency buyers run the risk to pay premium prices for inferior products (quality risks); furthermore, they run the risk to use or consume substances which are harmful (health risks). Therefore, they will want to design optimal contracts and controls preventing opportunistic behaviour. Usually, however, buyers cannot contract contingent on the actions of upstream sellers because they cannot observe them directly (information asymmetry). Motivated by the obviously...
Tipo: Journal Article
Palavras-chave: Food risk; Information asymmetry; Moral hazard; Opportunistic behaviour; Prevention; Principal-agent-model; Traceability; Agribusiness; Farm Management; Research Methods/ Statistical Methods; Risk and Uncertainty.
Ano: 2004
URL: http://purl.umn.edu/97448

A moderate threonine deficiency affects gene expression profile, paracellular permeability and glucose absorption capacity in the ileum of piglets
Provedor de dados: 5
Autores: Hamard, Alice; Mazurais, David; Boudry, Gaelle; Le Huerou-luron, Isabelle; Seve, Bernard; Le Floc'H, Nathalie.
High dietary threonine extraction by the digestive tract suggests that threonine contributes to maintain gut physiology. In the present study, we evaluated the impact of a low (6.5 g of threonine/kg diet; LT group) or a control well-balanced threonine diet (9.3 g of threonine/kg diet; C group) given to piglets for 2 weeks on ileal permeability and Na+-dependant glucose absorption capacity in Ussing chambers. The paracellular permeability was significantly increased in the ileum of LT compared to C piglets (P=.017). The Na+-dependent glucose absorption capacity showed a nonsignificant increase in the LT piglets. In addition, we analysed ileal gene expression profiles in the LT and C groups using porcine multitissue cDNA microarrays. Compared to the C...
Tipo: Text
Palavras-chave: Threonine; Small intestine; Paracellular permeability; Gene expression.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00014/12531/9425.pdf

A Modified phosphate-carrier protein theory is proposed as a non-target site mechanism For glyphosate resistance in weeds
Provedor de dados: 87
Autores: Roso,A.C.; Vidal,R.A.
Glyphosate is an herbicide that inhibits the enzyme 5-enolpyruvyl-shikimate-3-phosphate synthase (EPSPs) (EC 2.5.1.19). EPSPs is the sixth enzyme of the shikimate pathway, by which plants synthesize the aromatic amino acids phenylalanine, tyrosine, and tryptophan and many compounds used in secondary metabolism pathways. About fifteen years ago it was hypothesized that it was unlikely weeds would evolve resistance to this herbicide because of the limited degree of glyphosate metabolism observed in plants, the low resistance level attained to EPSPs gene overexpression, and because of the lower fitness in plants with an altered EPSPs enzyme. However, today 20 weed species have been described with glyphosate resistant biotypes that are found in all five...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Membrane carrier proteins; Herbicide; Weed resistance.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000500025

A molecular method to detect and identify the native species of southwestern Atlantic Crassostrea (Mollusca: Ostreidae)
Provedor de dados: 103
Autores: Ludwig,Sandra; Patella,Raquel; Stoiev,Sérgio; Castilho-Westphal,Gisela; Girotto,Marcus V. F; Ostrensky,Antonio.
Among oysters, species of Crassostrea (Sacco, 1897) are the most attractive to aquaculture. In Brazil, the genus is represented by C. rhizophorae (Guilding, 1828) and C. brasiliana (Lamarck, 1819). Because the maturation and breeding technology is not well developed for these species, aquaculturists need a reliable method to decide the correct time to place spat collectors in the field, and to identify both species, which are morphologically similar. In this study a specific Multiplex PCR protocol was developed, using one pair of universal primers from 18S rDNA as a positive control and a pair of specific primers for each target species. The sensitivity and specificity of the protocol was evaluated. It detected C. rhizophorae DNA in low concentrations, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Multiplex PCR; Oysters; Plankton; Specific primers.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000400002

A mosca Megaselia scalaris (Loew) (Diptera: Phoridae), parasita do carrapato bovino Boophilus microplus (Canestrini): uma revisão.
Provedor de dados: 14
Autores: KOLLER. W. W.; ANDREOTTI, R.; ZANON, A. M.; GOMES. A.; BARROS, J. C.
É apresentada uma revisão sobre os hábitos alimentares e outros aspectos da bioecologia da mosca Megaselia scalaris (Diptera: Phoridae). Essa mosca foi constatada parasitando fêmeas ingurgitadas do carrapato-do-boi, Boophilus microplus (Canestrini), na colônia mantida sobre bovinos da raça Nelore em baias cobertas (fase parasitária) e em câmara climatizada (fase de vida livre), na Embrapa Gado de Corte, em Campo Grande, MS, Brasil. Sugere-se a necessidade de investigação sobre a possibilidade de se usar a mosca M. scalaris no controle biológico de B. microplus.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Biology.; Biologia; Boophilus Microplus; Controle Biológico; Entomologia.; Megaselia scalaris; Biological control; Entomology.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325791

A mosca-dos-chifres (Haematobia irritans) em Rondônia.
Provedor de dados: 14
Autores: SILVA NETTO, F. G. da; TAVARES, A. C.; ALVES, P. M. P.; PEREIRA, R. G. de A.; LIMA, R. P.; PATROCLO, C. de A.
A mosca-dos-chifres (Haematobia irritans) é mais um ectoparasito que vem preocupando os órgãos de defesa sanitária animal, de pesquisa, de assistência técnica e criadores, pelos danos causados principalmente à pecuária bovina. O Estado de Rondônia conta com um rebanho bovino de aproximadamente um milhão e seiscentas mil cabeças. Conforme trabalhos realizados em outros países que acusam prejuízos vultosos, as perdas de produção causadas pela ação da mosca sobre este rebanho, poderão atingir altas proporções, caso não se introduza nenhuma tecnologia de controle. Este documento tem por objetivo, formular algumas orientações de controle com êxito em outras regiões que certamente servirão para diminuir a infestação de moscas e também se constituirá como base...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Horn fly; Besouro africano; Brown dung beetle; Besouro Rola Bosta; Rondônia; Western Amazon.; Amazônia Ocidental; Gado; Mosca dos Chifres; Parasito de Animal; Haematobia Irritans; Inseto Para Controle Biológico.; Cattle; Ectoparasites; Biological control agents; Onthophagus gazella.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/697884

A Multicommodity EU Policy Framework Incorporating Public Good Criteria into the Direct Payment System in Agriculture
Provedor de dados: 31
Autores: Dunne,   W.; O'Connell,   J.J.
For decades the CAP has been the major influence in shaping EU agriculture and food production. The economic and policy environment in the EU is now very different from that which prevailed in the earlier decades. The future economic, social and geographic diversity of the EU will be further increased by enlargement. Agricultural policies and the related operational frameworks will inevitably change to accommodate this added diversity and the changing societal and consumer values. This paper evaluates how the current shape of EU agriculture has been influenced by the reforms to date. It also attempts to focus on where EU farming may be, or wish to go, over the next decade. The evaluation is restricted to the beef sector as it has been to the forefront in...
Tipo: Conference Paper or Presentation
Palavras-chave: CAP reform; Direct payments for public goods; Animal welfare; Environment; Food safety; Production methods; Extensive production; Economic; Social and geographic diversity; Future role of farming; An administrative framework.; Agricultural Finance.
Ano: 2002
URL: http://purl.umn.edu/24801

A multi-decade record of high-quality fCO(2) data in version 3 of the Surface Ocean CO2 Atlas (SOCAT)
Provedor de dados: 5
Autores: Bakker, Dorothee C. E.; Pfeil, Benjamin; Landa, Camilla S.; Metzl, Nicolas; O'Brien, Kevin M.; Olsen, Are; Smith, Karl; Cosca, Cathy; Harasawa, Sumiko; Jones, Stephen D.; Nakaoka, Shin-ichiro; Nojiri, Yukihiro; Schuster, Ute; Steinhoff, Tobias; Sweeney, Colm; Takahashi, Taro; Tilbrook, Bronte; Wada, Chisato; Wanninkhof, Rik; Alin, Simone R.; Balestrini, Carlos F.; Barbero, Leticia; Bates, Nicholas R.; Bianchi, Alejandro A.; Bonou, Frederic; Boutin, Jacqueline; Bozec, Yann; Burger, Eugene F.; Cai, Wei-jun; Castle, Robert D.; Chen, Liqi; Chierici, Melissa; Currie, Kim; Evans, Wiley; Featherstone, Charles; Feely, Richard A.; Fransson, Agneta; Goyet, Catherine; Greenwood, Naomi; Gregor, Luke; Hankin, Steven; Hardman-mountford, Nick J.; Harlay, Jerome; Hauck, Judith; Hoppema, Mario; Humphreys, Matthew P.; Hunt, Christopherw.; Huss, Betty; Ibanhez, J. Severino P.; Johannessen, Truls; Keeling, Ralph; Kitidis, Vassilis; Koertzinger, Arne; Kozyr, Alex; Krasakopoulou, Evangelia; Kuwata, Akira; Landschuetzer, Peter; Lauvset, Siv K.; Lefevre, Nathalie; Lo Monaco, Claire; Manke, Ansley; Mathis, Jeremy T.; Merlivat, Liliane; Millero, Frank J.; Monteiro, Pedro M. S.; Munro, David R.; Murata, Akihiko; Newberger, Timothy; Omar, Abdirahman M.; Ono, Tsuneo; Paterson, Kristina; Pearce, David; Pierrot, Denis; Robbins, Lisa L.; Saito, Shu; Salisbury, Joe; Schlitzer, Reiner; Schneider, Bernd; Schweitzer, Roland; Sieger, Rainer; Skjelvan, Ingunn; Sullivan, Kevin F.; Sutherland, Stewart C.; Sutton, Adrienne J.; Tadokoro, Kazuaki; Telszewski, Maciej; Tuma, Matthias; Van Heuven, Steven M. A. C. .; Vandemark, Doug; Ward, Brian; Watson, Andrew J.; Xu, Suqing.
The Surface Ocean CO2 Atlas (SOCAT) is a synthesis of quality-controlled fCO(2) (fugacity of carbon dioxide) values for the global surface oceans and coastal seas with regular updates. Version 3 of SOCAT has 14.7 million fCO(2) values from 3646 data sets covering the years 1957 to 2014. This latest version has an additional 4.6 million fCO(2) values relative to version 2 and extends the record from 2011 to 2014. Version 3 also significantly increases the data availability for 2005 to 2013. SOCAT has an average of approximately 1.2 million surface water fCO(2) values per year for the years 2006 to 2012. Quality and documentation of the data has improved. A new feature is the data set quality control (QC) flag of E for data from alternative sensors and...
Tipo: Text
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00383/49405/49890.pdf

A MULTIPLE-METHOD APPROACH TO STUDYING CHILDCARE IN AN URBAN ENVIRONMENT: THE CASE OF ACCRA, GHANA
Provedor de dados: 31
Autores: Ruel,   Marie T.; Armar-Klemesu,   Margaret; Arimond,   Mary.
This document summarizes findings from the Accra Urban Food and Nutrition Study (AUFNS) about the importance of care as an input to child nutrition and the relative contribution of various maternal and household resources to the provision of care. Findings from the quantitative survey (n = 556) and the in-depth observational study (n = 22) are reviewed and complemented with insights from the participatory rapid appraisals (PRAs) carried out at the onset of the study. Results of each phase of the research have been reported separately; this report aims to integrate findings from all three components. The key findings related to the five main questions addressed by this study are summarized as follows. ! Is care an important input into child nutrition in...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital.
Ano: 2001
URL: http://purl.umn.edu/16473

A Multiplex real-time PCR for detection of Mycoplasma gallisepticum and Mycoplasma synoviae in clinical samples from Brazilian commercial poultry flocks
Provedor de dados: 58
Autores: Fraga,Aline Padilha; Vargas,Tatiana de; Ikuta,Nilo; Fonseca,André Salvador Kazantzi; Celmer,Álvaro José; Marques,Edmundo Kanan; Lunge,Vagner Ricardo.
Mycoplasma gallisepticum (MS) and Mycoplasma synoviae (MS) are important avian pathogens and cause economic losses to the poultry industry. Molecular biology techniques are currently used for a rapid detection of these pathogens and the adoption of control measures of the diseases. The aim of this study was to develop and validate a technique for simultaneous detection of MG and MS by multiplex real time polymerase chain reaction (PCR). The complete assay (Multiplex MGMS) was designed with primers and probes specific for each pathogen and developed to be carried out in a single tube reaction. Vaccines, MG and MS isolates and DNA from other Mycoplasma species were used for the development and validation of the method. Further, 78 pooled clinical samples...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Real-time PCR; Mycoplasma gallisepticum; Mycoplasma synoviae.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200028

A multivariate indicator to monitor changes in spatial patterns of age-structured fish populations
Provedor de dados: 5
Autores: Petitgas, Pierre; Poulard, Jean-charles.
Quantitative analysis of the spatial patterns in age-structured fish populations provides a useful complement to stock assessment methods. The spatial distribution of an age-structured population is characterized by indicators for location, dispersion and aggregation, which are estimated from survey data. The times series of spatial indicators are organised in a 3D data structure with dimensions along indicators, age classes and years. Multi factor analysis (MFA) is applied to quantify the reproducibility in time of the multivariate structure between age classes and indicators. MFA computes the mean annual pattern over the age classes. The deviation around that pattern in each year is also quantified. A multivariate indicator that characterise the spatial...
Tipo: Text
Palavras-chave: Spatial distribution; Monitoring; CUSUM; Multi factor analysis.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6688.pdf

A Multy-Year Study Reveals the Importance of Residual Herbicides on Weed Control in Glyphosate-Resistant Soybean
Provedor de dados: 87
Autores: NUNES,A.L.; LORENSET,J.; GUBIANI,J.E.; SANTOS,F.M.
ABSTRACT: A 3-year field study was conducted to assess the potential for using pre-emergent (PRE) herbicides tank mixed with glyphosate as a means of controlling weed species in soybean. In 2011/12, 2012/13 and 2013/14 growing sessions soybean cultivar Brasmax Apollo RR was planted under residues of rye. The herbicide treatments glyphosate (gly) (1,296 g a.i. ha-1), gly + S-metolachlor (1,296 + 1,920), gly + imazaquin (1,296 +161), gly + pendimethalin (1,296 + 1,000), gly + metribuzin (1,296 + 480), gly + 2.4-D amine (1,296 + 1,209) was applied in pre-emergence (PRE) over rye crop residues two days before soybean sowing. In addition, full season weed-free and weedy control plots were included. Gly + S-metolachlor and gly + pendimethalin reduced the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; 2.4-D; Metribuzin; S-metolachlor; Conyza spp.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100239

A mussel (Mytilus edulis) tissue certified reference material for the marine biotoxins azaspiracids
Provedor de dados: 5
Autores: Mccarron, Pearse; Giddings, Sabrina D.; Reeves, Kelley L.; Hess, Philipp; Quilliam, Michael A.
Azaspiracids (AZAs) are lipophilic biotoxins produced by marine algae that can contaminate shellfish and cause human illness. The European Union (EU) regulates the level of AZAs in shellfish destined for the commercial market, with liquid chromatography-mass spectrometry (LC-MS) being used as the official reference method for regulatory analysis. Certified reference materials (CRMs) are essential tools for the development, validation, and quality control of LC-MS methods. This paper describes the work that went into the planning, preparation, characterization, and certification of CRM-AZA-Mus, a tissue matrix CRM, which was prepared as a wet homogenate from mussels (Mytilus edulis) naturally contaminated with AZAs. The homogeneity and stability of...
Tipo: Text
Palavras-chave: Azaspiracids; Seafood safety; Matrix certified reference material; Liquid chromatography-mass spectrometry; Matrix effects.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00320/43138/42761.pdf

A necrose da base da fôlha do sisal
Provedor de dados: 53
Autores: Medina,J. C.
Sisal (Agave sisalana Perrine) growing in various localities of the State of São Paulo is often heavely damaged by "leaf basal necrose", whose symptoms are identical with the "leaf foot disease" reported from Java, East Africa and Belgian Congo. The affected leaves show in the initial stages small spots of black, slightly shrivelled tissue on the lower part of the leaf. These gradually spread out. During the later stages the affected leaves bent over at this point. Only approximately mature leaves of plants between 18 to 30 months old are affected. This disturbance was first observed in Anapolis, Araraquara and Campinas. It was thought to be due to K deficiency in the soil. In order to prove this a small fertilizer experiment was established at Campinas...
Tipo: Info:eu-repo/semantics/article
Ano: 1943
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051943000400002

A New Acetylcholinesterase Inhibitor from Green Glycosylation of Trachyloban-19-oic Acid by Mucor plumbeus
Provedor de dados: 42
Autores: SANTOS,GABRIEL F. DOS; TAKAHASHI,JACQUELINE A.
ABSTRACT The in vitro metabolism of a widespread natural product, trachyloban-19-oic acid (1), by the fungal species Mucor plumbeus was studied in a sucrose-yeast liquid medium. Two products were isolated, and their structures were determined by spectroscopic means as 7β-hydroxytrachyloban-19-oic acid (5) and trachyloban-19-O-β-D-glucopyranosyl ester (6). To the best of our knowledge, compound 6 is herein reported by the first time in the literature. These compounds were assayed for acetylcholinesterase inhibition along with some related compounds. Compound 6 showed the highest acetylcholinesterase inhibitory activity at 10000 µg/mL among the tested compounds, a result (92.89%) comparable to the activity of the positive control, galanthamine (94.21%)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetylcholinesterase inhibitors; Biotransformation; Green glycosylation; Mucor plumbeus; Trachyloban-19-oic acid.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000501961

A new allele of peptidase-B in cattle
Provedor de dados: 54
Electrophoretic analyses of peptidase-B were carried out on red cell hemolysates from Holstein, Mantiqueira and Gyr cattle, using cornstarch, known in Brazil as Penetrose-30. We describe a new peptidase-B allele, denoted Pep-B1, in Mantiqueira cattle, belonging to the Bos taurus group, which are the result of a cross of native cattle of Portuguese origin introduced in Brazil during colonial times (16th century) with Holstein and Caracu cattle. The genetic control of peptidase-B was determined by typing parents and progeny segregating for all three alleles, confirming that peptidase B is controlled by a single autosomal locus with three codominant alleles, denoted Pep-B1, Pep-B2 and Pep-B3 The use of the citrate-phosphate buffer system, at pH 5.9, on 14%...
Tipo: Info:eu-repo/semantics/other
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551997000100002

A new analytical formulation of retention effects on particle diffusion processes
Provedor de dados: 42
Autores: Bevilacqua,Luiz; Galeão,Augusto C.N.R.; Costa,Flavio P.
The ultimate purpose of this paper is to present a new analytical formulation to simulate diffusion with retention in a reactive medium under stable thermodynamic conditions. The analysis of diffusion with retention in a continuum medium is developed after the solution of an equivalent problem using a discrete approach. The new law may be interpreted as the reduction of all diffusion processes with retention to a unifying phenomenon that can adequately simulate the retention effect namely a circulatory motion. It is remarkable that the governing equation requires a fourth order differential term as suggested by the discrete approach. The relative fraction of diffusion particles β is introduced as a control parameter in the diffusion-retention law as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diffusion; Retention; Constitutive law; Discrete approach; Population dynamics; Fourth order differential equations.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400031

A new approach for obtaining rapid uniformity in rice (Oryza sativa L.) via a 3x x 2x cross
Provedor de dados: 74
Autores: Xing,Shaochen; Cai,Yuhong; Zhou,Kaida.
A triploid (2n = 3x = 36) rice plant was obtained by screening a twin seedling population in which each seed germinated to two or three sprouts that were then crossed with diploid plants. One diploid plant was chosen among the various F1 progenies and developed into an F2 population via self-pollination. Compared with the control variety Shanyou 63, this F2 population had a stable agronomical performance in field trials, as confirmed by the F-test. The stability of the F2 population was further substantiated by molecular analysis with simple sequence repeat markers. Specifically, of 160 markers assayed, 37 (covering all 12 chromosomes) were polymorphic between the parental lines. Testing the F1 hybrid individually with these markers showed that each PCR...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: F-test; Polyploidy; Rice; SSR marker; Stability.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200020

A new approach to determine the distributional effects of quota management in fisheries
Provedor de dados: 5
Autores: Bellanger, Manuel; Macher, Claire; Guyader, Olivier.
Quota allocation mechanisms have distributional effects that are highly relevant to the economic organization of fisheries. In France, where fishing allocations are non-transferable, quotas are shared among Producer Organizations (POs) based on the historical landings of their members. Each PO is then responsible for implementing their own internal rules that provide individual or collective allocations to their members. This study investigates the distributional effects of the various quota management systems adopted by POs on quotas and production for the Bay of Biscay sole fishery. A comparison between initial allocations by vessel based on historical landings and actual observed landings is presented. Inequality metrics are used to quantify...
Tipo: Text
Palavras-chave: Distribution; Inequality; Producer organizations; Catch shares; Common-pool resources; Fishery management.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00332/44359/43999.pdf

A new concept for insect damage evaluation based on plant physiological variables
Provedor de dados: 42
Autores: Neves,Ademir D.; Oliveira,Ricardo F.; Parra,José R.P.
The objective of this study was to determine the damage levels caused by Orthezia praelonga Douglas, 1891 and Leucoptera coffeella (Guérin-Mèneville 1842), on rangpur lime and Obatã coffee leaves, respectively. Measurements were based on a new concept for the evaluation of the following plant physiological parameters: photosynthesis, stomatal conductance, leaf temperature and transpiration, and internal concentration of CO2 (by infrared analyzer). A negative correlation between infestation level and photosynthesis was found, where the negative inflexion point of the curve was considered as a reference for damage levels. The control level for O. praelonga is below the 7-13% limit for damaged leaf area (40 to 70 scales per leaf), while for L. coffeella it is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Photosynthesis; Economic level injury; Citrus; Coffee; Plant-insect interactions.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000400015

A new concept for the control of Elytrigia repens in organic crop production
Provedor de dados: 21
Autores: Melander, Bo; Nørremark, Michael; Fløjgaard, Erik.
The control of perennial weeds in organic crop production needs reconsideration to minimise losses of nutrients through leaching. Long post-harvest periods with mechanical weed control hinder a plant cover with the purpose of taking up nutrients not being utilised by the main crop to maintain soil fertility. To meet the interests of nutrient and weed management, we suggest a new concept for the control of perennial weeds with propagules placed within the plough layer. The concept comprises uprooting and immediate removal of Elytrigia repens rhizomes with modified machinery to allow for a quick re-establishment of a plant cover to avoid longer periods of bare soil. Four passes with a modified cultivator where each pass was followed by rhizome removal and...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2012
URL: http://orgprints.org/22277/13/22277.pdf

A new global interior ocean mapped climatology: the 1 degrees x 1 degrees GLODAP version 2
Provedor de dados: 5
Autores: Lauvset, Siv K.; Key, Robert M.; Olsen, Are; Van Heuven, Steven; Velo, Anton; Lin, Xiaohua; Schirnick, Carsten; Kozyr, Alex; Tanhua, Toste; Hoppema, Mario; Jutterstrom, Sara; Steinfeldt, Reiner; Jeansson, Emil; Ishii, Masao; Perez, Florian; Suzuki, Toru; Watelet, Sylvain.
We present a mapped climatology (GLODAPv2.2016b) of ocean biogeochemical variables based on the new GLODAP version 2 data product (Olsen et al., 2016; Key et al., 2015), which covers all ocean basins over the years 1972 to 2013. The quality- controlled and internally consistent GLODAPv2 was used to create global 1 degrees x 1 degrees mapped climatologies of salinity, temperature, oxygen, nitrate, phosphate, silicate, total dissolved inorganic carbon (TCO2), total alkalinity (TAlk), pH, and CaCO3 saturation states using the DataInterpolating Variational Analysis (DIVA) mapping method. Improving on maps based on an earlier but similar dataset, GLODAPv1.1, this climatology also covers the Arctic Ocean. Climatologies were created for 33 standard depth...
Tipo: Text
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00383/49410/49884.pdf

A new, harmless, high-throughput endosperm-based DNA extraction method for wheat
Provedor de dados: 65
Autores: Ma,Zhihui; Wang,Yuquan; Wei,Wenhui; Ru,Zhengang.
ABSTRACT:  In this study, a non-destructive, high-throughput, endosperm-based DNA extraction method was developed. To verify the non-destructive nature of this method, a germination test was performed on 288 seeds after sampling their endosperm, which gave a seedling emergence rate that was higher (97.6%) than that of the control group (92%). To confirm the feasibility of the new method, DNA was extracted from plants of a BC1F2 population by two different methods, namely, from endosperm using our rapid, high-throughput method (ER-DNA) and from young leaves emerging from the same sampled seed using the CTAB method (LC-DNA). The ER-DNA was undetectable by agarose gel electrophoresis, but was found to be an adequate replacement for LC-DNA for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wheat; Triticum aestivum; SSR; Segregation population.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000900200

A New Method for Reduction of NH3 Emissions from Pig Housing Systems by Adding Sulphuric Acid to Slurry
Provedor de dados: 31
Autores: Jensen,   Jorgen E.; Norgaard,   Nicolaj H.; Krabbe,   Henning; Pedersen,   Poul.
Effects of adding sulphuric acid to slurry by flushing the waste pits were studied in a commercial finishing unit with four identical sections. Each section included 300 pigs on fully slatted floors. Waste pits in two control sections had a pull-plug system installed for removal of slurry. The other two sections had a new developed and patented waste handling system using a sulphuric acid treatment.
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental Economics and Policy; Livestock Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/24321

A new method to control error rates in automated species identification with deep learning algorithms
Provedor de dados: 5
Autores: Villon, Sébastien; Mouillot, David; Chaumont, Marc; Subsol, Gérard; Claverie, Thomas; Villéger, Sébastien.
Processing data from surveys using photos or videos remains a major bottleneck in ecology. Deep Learning Algorithms (DLAs) have been increasingly used to automatically identify organisms on images. However, despite recent advances, it remains difficult to control the error rate of such methods. Here, we proposed a new framework to control the error rate of DLAs. More precisely, for each species, a confidence threshold was automatically computed using a training dataset independent from the one used to train the DLAs. These species-specific thresholds were then used to post-process the outputs of the DLAs, assigning classification scores to each class for a given image including a new class called “unsure”. We applied this framework to a study case...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00640/75244/75406.pdf

A new method to simulate the hydrological state of soil under natural conditions
Provedor de dados: 86
Autores: Wild,Anna-Katharina; Marx,Michael Thomas; Eisenbeis,Gerhard.
Micro, macro and mesofauna in the soil often respond to fluctuating environmental conditions, resulting in changes of abundance and community structure. Effects of changing soil parameters are normally determined with samples taken in the field and brought to the laboratory, i.e. where natural environmental conditions may not apply. We devised a method (STAFD - soil tubes for artificial flood and drought), which simulates the hydrological state of soil in situ using implanted cores. Control tubes were compared with treatment tubes in which floods of 15, 30, 60 and 90 days, and droughts of 60, 90 and 120 days were simulated in the field. Flooding and drought were found to reduce number of individuals in all soil faunal groups, but the response to drought...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climate change; Drought; Flooding; Soil invertebrates; Soil tubes; STAFD method.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800007

A new Neotropical species of Liothrips (Thysanoptera: Phlaeothripidae) associated with Ludwigia (Myrtales:Onagraceae)
Provedor de dados: 99
Autores: Zamar,María I.; Hernández,María C.; Soto-Rodríguez,Gerardo A.; Retana-Salazar,Axel P.
Liothrips ludwigi (Thysanoptera: Phlaeothripidae) is described and a key to differentiate it from the other four species present in Argentina is provided. This species can be distinguished by the following characters: major setae on head and pronotum slender and brown yellowish; anteromarginal setae short (14µ-21µ), and metanotum reticulated with hexagonal cells. Liothrips ludwigi feeds and reproduces on Ludwigia grandiflora (Michx.) Greuter &amp;amp; Burdet and L. grandiflora ssp. hexapetala (Hook. &amp;amp; Arn.) G.L. Nesom &amp;amp; Kartesz (Myrtales: Onagraceae). This is the first record of the association between Liothrips and this family of plants.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphology; Biological characteristics; Damage; Biological control; Thrips.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802013000100008

A new open cableb infrastructure in MEDSEA
Provedor de dados: 5
Autores: Leon, Pierre; Drogou, Jean-francois; Chenot, Damien; Leveque, C.; Martinossi, Henri; Massol, Alain; Rigaud, Vincent; Santarelli, Dominique; Valdy, Pierre; Gojak, Carl; Bernardet, Karim; Hafidi, Zouhir; Lenault, Yannick; Mahiouz, Karim; Deschamps, Anne; Hello, Y.; Lefevre, D.; Tamburini, C.; Destelle, J. J.
Recently the ANTARES Neutrino telescope's Infrastructure in the deep Mediterranean Sea, has been extended by a Secondary Junction Box. The main emphasis has been to provide basic power and communications capability for new scientific cabled observatories. This new infrastructure provides unprecedented amounts of power and two-way bandwidth to access and control instrument networks in the oceans. This new development allows cabled observatory to connect the seafloor to the Internet via real-time, two-way highspeed communications. This design gives researchers new capabilities beyond the reach of traditional oceanography. Ocean scientists can run deep-water experiments from labs and universities anywhere around the world. Three different underwater...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00050/16173/13658.pdf

A new SNP-based vision of the genetics of sex determination in European sea bass (Dicentrarchus labrax)
Provedor de dados: 5
Autores: Palaiokostas, Christos; Bekaert, Michael; Taggart, John B.; Gharbi, Karim; Mcandrew, Brendan J.; Chatain, Beatrice; Penman, David J.; Vandeputte, Marc.
Background: European sea bass (Dicentrarchus labrax) is one of the most important farmed species in Mediterranean aquaculture. The observed sexual growth and maturity dimorphism in favour of females adds value towards deciphering the sex determination system of this species. Current knowledge indicates the existence of a polygenic sex determining determination system that interacts with temperature. This was explored by restriction-site associated DNA (RAD) marker analysis in a test panel of 175 offspring that originated from a factorial cross between two dams and four sires from a single full-sib family.  Results: The first high-density single nucleotide polymorphism (SNP) based linkage map for sea bass was constructed, consisting of 6706 SNPs on 24...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00280/39095/37658.pdf

A new species of Cervellus Szépligeti (Hymenoptera, Braconidae, Braconinae) with biological notes
Provedor de dados: 92
Autores: Penteado-Dias,Angélica Maria; Moreira,Marcos Antonio Barbosa; Zarbin,Paulo Henrique Gorgatti.
A new Cervellus species is described from Brazil. The male to this genus is described for the first time as well its cocoon is illustrated. The specimens parasitize the papaya borer weevil Pseudopiazurus obesus (Boheman, 1838) (Coleoptera, Curculionidae) associated with Carica papaya Linnaeus, 1753 (Caricaceae) at Rio Grande do Norte and Bahia Brazilian States.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Carica papaya; Parasitoids; Taxonomy.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000100003

A new system for evaluating inputs for organic farming
Provedor de dados: 21
Autores: Speiser, Bernhard.
With developments in agriculture always in a state of flux organic standards and regulations can act as a factor against innovation in organic farming. Nowhere is this more obvious than in the control of inputs. To improve this situation, a EU-funded Concerted Action project "Organic Inputs Evaluation" was set up. Below are the proposals developed by the project.
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Regulation.
Ano: 2007
URL: http://orgprints.org/13366/1/speiser%2D2007%2DTOS_70_evaluating%2Dinputs.pdf

A newly designed intensive caregiver education program reduces cognitive impairment, anxiety, and depression in patients with acute ischemic stroke
Provedor de dados: 56
Autores: Zhang,Li; Zhang,Tianzhu; Sun,Yan.
This study aimed to evaluate the effect of a newly designed intensive caregiver education program (ICEP) on reducing cognitive impairment, anxiety, and depression in acute ischemic stroke (AIS) patients. One hundred and ninety-six AIS patients were divided into ICEP group and Control group in a 1:1 ratio using blocked randomization method. In the ICEP group, the caregivers received ICEP, while in the Control group caregivers received usual education and guidance. All patients received conventional rehabilitation treatment. Cognitive impairment (assessed by Mini Mental State Examination (MMSE) score and Montreal Cognitive Assessment (MoCA) score), anxiety (assessed by Hospital Anxiety and Depression Scale (HADS)-A score and Self-rating Anxiety Scale (SAS)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acute ischemic stroke; Intensive caregiver education program; Cognitive impairment; Anxiety; Depression.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000900609

A non-chemical method for monitoring adult olive weevil populations in Tadla-Azilal plain in Morocco
Provedor de dados: 21
Autores: EL JIATI, Abdelazize.
The olive weevil becomes one of the major olive pests in Tadla-Azilal in Morocco. The chemical control is expensive and of low efficiency. Its application at night complicates the task for olive growers. An alternative non-chemical method has been developed using polyester fiber as a trap. It has a high efficiency, low cost and might be advised to organic olive farmers.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2008
URL: http://orgprints.org/12073/1/olive_weevil.rtf

A non-linear software sensor to monitor the internal nitrogen quota of phytoplanktonic cells
Provedor de dados: 5
Autores: Bernard, O; Sciandra, A; Sallet, G.
New techniques - called software sensors - issued from the non-linear automatic control field and initially developed for non-linear chemical systems have been applied to a continuous culture of phytoplankton. A software sensor (or 'observer') combines an analytical differential equation based model and partial measurements of the system in order to estimate the non-measured state variables. It filters data and estimates the actual state of living systems, models of which are often rough approximations. The efficiency of this approach is illustrated with a nitrate-limited chemostat experiment with the chlorophyceae Dunaliella tertiolecta performed in a computer controlled fluctuating environment. (C) 2001 Ifremer/CNRS/IRD/Editions scientifiques et...
Tipo: Text
Palavras-chave: Modèle de Droop; Systèmes non linéaires; Observateurs; Phytoplancton; Droop model; Non-linear systems; Observers; Phytoplankton.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00322/43340/42888.pdf

A nonspecific primer anchored PCR technique for chromosome walking
Provedor de dados: 52
Autores: Zhang,Yan; Liu,Daqun; Yang,Wenxiang; Li,Yaning; Yan,Hongfei.
A chromosome walking method was improved in this work. The new method was named as nonspecific primer anchored PCR (NPA-PCR). Nested gene specific primers were designed based on the known region and long random primer using degeneracy oligonucleotides for nonspecific anchoring. Annealing temperatures were varied to control the priming. Target sequences were obtained by PCR with random primer and gene-specific primer. Nonspecific sequence with long random primers at both ends formed stem loop structure due to inverted terminal repeats. The method was employed to isolate a gene with newly-isolated actinomycin producing strain Streptomyces setonii Z-L-22. A 0.77 kb fragment of actinomycin synthetase gene cluster was isolated from the strain. The fragments of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nonspecific primer anchored PCR; Chromosome walking; Random primer.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000100013

A NOTE ON HIGH DISCOUNT RATES AND DEPLETION OF PRIMARY FORESTS
Provedor de dados: 31
Autores: Bulte,   Erwin H.; van Soest,   Daan P.
Conventional wisdom implies that high discount rates accelerate depletion of tropical forests. As shown in this article, this result does not necessarily hold in a two-state variable model that distinguishes between primary and secondary forest stocks. In the context of a fixed concession period and imperfect government control, logging of primary forests may be both accelerated and depressed as discount rates increase.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31026

A note on stability in food matrices of Salmonella enterica serovar Enteritidis-controlling bacteriophages
Provedor de dados: 69
Autores: Robeson,James; Turra,Gabriel; Huber,Karen; Borie,Consuelo.
Background Lytic bacteriophages are bacterial viruses that upon infection kill their host cells and therefore have re-emerged as biological control agents of bacterial pathogens, particularly in the field of food related infections. Here, we investigated the stability in different food matrices of five phage isolates capable of controlling the foodborne pathogen Salmonella enterica serovar Enteritidis (SE). Results We found that two phages, originally isolated from food sources, were up to 5 logs more stable than three phages isolated from sewage, in ten food matrices (fresh and processed) at both 4°C and 18°C. Conclusion Lytic phages isolated from contaminated food sources seem to be a better choice when structuring phage cocktails to be used in the...
Tipo: Journal article
Palavras-chave: Biocontrol; Foodstuffs; Phage.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000400008

A Note on the Theory of Price Determination in the Australian Beef Market
Provedor de dados: 31
Autores: Reeves,   G.W.; Longmire,   James L.
The view is taken that institutional factors operating in the international beef market limit the usefulness of a competitive spatial equilibrium model for understanding the process of price formation in the Australian beef market. A simple theoretical model is developed to demonstrate the impact of the U.S. beef quota and Australia's meat export control scheme on Australian beef prices. It is argued that Australian beef prices are related to the weighted average of export prices rather than any "world" price. Implications for the direction and volume of Australia's beef exports are discussed.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; Livestock Production/Industries.
Ano: 1982
URL: http://purl.umn.edu/12294

A novel 96-microwell-based high-throughput spectrophotometric assay for pharmaceutical quality control of crizotinib, a novel potent drug for the treatment of non-small cell lung cancer
Provedor de dados: 60
Autores: Wani,Tanveer Ahmed; Darwish,Ibrahim Ali.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crizotinib/capsules/quality control 1; 2-Naphthoquinone-4-sulphonate Spectrophotometry/quality control of medicines.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000200439

A novel agribusiness model for backward linkages with farmers: a case of food retail chain
Provedor de dados: 31
Autores: Mangala,   K.P.; Chengappa,   P.G.
One of the leading food retail chains, ‘Spencers’ have established backward linkages with farmers for procuring fresh fruits and vegetables. The main strategy of this system ensures a steady and continuous supply of fresh vegetables to the food retail chain and flow of income to farmers. This linkage has been able to change the method of farming and the marketing arrangement followed by the food retail chains. The marketing arrangement by Spencers food retail chain has reduced the market risks and transaction cost of farmers and has helped them in breaking away from the clutches of traditional brokers/wholesalers/commission agents. Direct supply by farmers has allowed the retail chain to simultaneously increase control over quality, supply reliability and...
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 2008
URL: http://purl.umn.edu/47886

A Novel Bacterial Pathogen of Biomphalaria glabrata: A Potential Weapon for Schistosomiasis Control?
Provedor de dados: 5
Autores: Duval, David; Galinier, Richard; Mouahid, Gabriel; Toulza, Eve; Allienne, Jean Francois; Portela, Julien; Calvayrac, Christophe; Rognon, Anne; Arancibia, Nathalie; Mitta, Guillaume; Theron, Andre; Gourbal, Benjamin.
Background Schistosomiasis is the second-most widespread tropical parasitic disease after malaria. Various research strategies and treatment programs for achieving the objective of eradicating schistosomiasis within a decade have been recommended and supported by the World Health Organization. One of these approaches is based on the control of snail vectors in endemic areas. Previous field studies have shown that competitor or predator introduction can reduce snail numbers, but no systematic investigation has ever been conducted to identify snail microbial pathogens and evaluate their molluscicidal effects. Methodology/Principal findings In populations of Biomphalaria glabrata snails experiencing high mortalities, white nodules were visible on snail...
Tipo: Text
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00615/72716/71712.pdf

A novel dosage form for buccal administration of bupropion
Provedor de dados: 60
Autores: Almeida,Nilsa Maria Galvão; Lima,Renata; Alves,Thaís Francine Ribeiro; Rebelo,Márcia de Araújo; Severino,Patrícia; Chaud,Marco Vinícius.
Bupropion is an antidepressant used in the treatment of smoking. The purpose of this study was to prepare controlled-release hydrogel films for buccal administration of bupropion and investigate its physicochemical and cytotoxic properties. The films were prepared from ultrapure sodium carboxymethylcellulose, hydroxypropylmethylcellulose K4M, and medium-viscosity chitosan. Evaluation of film physicochemical characteristics was based on scanning electron microscopy, bupropion content, mechanical strength (burst strength, relaxation, resilience, and traction), and cytotoxicity. Bupropion content in bilayer films was 121 mg per 9 cm2. The presence of bupropion modified film mechanical strength, but did not compromise the use of this pharmaceutical form. As...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bupropion/buccal administration; Bilayer films/drugs rellease; Drugs/controlled-release; Tobacco/control.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000100091

A novel effective method for the assessment of microvascular function in male patients with coronary artery disease: a pilot study using laser speckle contrast imaging
Provedor de dados: 56
Autores: Borges,J.P.; Lopes,G.O.; Verri,V.; Coelho,M.P.; Nascimento,P.M.C.; Kopiler,D.A.; Tibirica,E.
Evaluation of microvascular endothelial function is essential for investigating the pathophysiology and treatment of cardiovascular and metabolic diseases. Although laser speckle contrast imaging technology is well accepted as a noninvasive methodology for assessing microvascular endothelial function, it has never been used to compare male patients with coronary artery disease with male age-matched healthy controls. Thus, the aim of this study was to determine whether laser speckle contrast imaging could be used to detect differences in the systemic microvascular functions of patients with established cardiovascular disease (n=61) and healthy age-matched subjects (n=24). Cutaneous blood flow was assessed in the skin of the forearm using laser speckle...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ischemic heart disease; Cutaneous vascular conductance; Microvascular flowmetry; Endothelial function; Post-occlusive reactive hyperemia.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016001000703

A novel missense mutation p.L76P in the GJB2 gene causing nonsyndromic recessive deafness in a Brazilian family
Provedor de dados: 56
Autores: Batissoco,A.C.; Auricchio,M.T.B.M.; Kimura,L.; Tabith-Junior,A.; Mingroni-Netto,R.C.
Mutations in the GJB2 gene, encoding connexin 26 (Cx26), are a major cause of nonsyndromic recessive hearing loss in many countries. We report here on a novel point mutation in GJB2, p.L76P (c.227C&gt;T), in compound heterozygosity with a c.35delG mutation, in two Brazilian sibs, one presenting mild and the other profound nonsyndromic neurosensorial hearing impairment. Their father, who carried a wild-type allele and a p.L76P mutation, had normal hearing. The mutation leads to the substitution of leucine (L) by proline (P) at residue 76, an evolutionarily conserved position in Cx26 as well as in other connexins. This mutation is predicted to affect the first extracellular domain (EC1) or the second transmembrane domain (TM2). EC1 is important for...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: GJB2 gene Connexin 26 Hearing impairment p.L76P c.227C&gt; T.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000200004

A novel multiplex PCR for the simultaneous detection of Salmonella enterica and Shigella species
Provedor de dados: 58
Autores: Radhika,M.; Saugata,Majumder; Murali,H.S.; Batra,H.V.
Salmonella enterica and Shigella species are commonly associated with food and water borne infections leading to gastrointestinal diseases. The present work was undertaken to develop a sensitive and reliable PCR based detection system for simultaneous detection of Salmonella enterica and Shigella at species level. For this the conserved regions of specific genes namely ipaH1, ipaH, wbgZ, wzy and invA were targeted for detection of Shigella genus, S. flexneri, S. sonnei, S. boydii and Salmonella enterica respectively along with an internal amplification control (IAC). The results showed that twenty Salmonella and eleven Shigella spp., were accurately identified by the assay without showing non-specificity against closely related other Enterobacteriaceae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella; Shigella; Multiplex PCR; Spiking.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000200041

A novel neuropeptide Y neuronal pathway linking energy state and reproductive behavior
Provedor de dados: 19
Autores: Muroi, Yoshikage; Ishii, Toshiaki.
Animals consume energy for reproduction, as well as survival. Excess or insufficient energy investment into reproduction, respectively, threatens the survival of parents or leads to the failure of reproduction. Management of energy consumption in reproduction is important, not only for the success of the process, but also for the survival of the parents. Reproductive behaviors, such as mating and parental behavior, are indispensable for achieving each event of reproduction including gametogamy, parturition, and lactation. Therefore, reproductive behavior is one of the important factors in managing energy consumption for reproduction. Orexigenic and anorexigenic molecules in the hypothalamus have been implicated in the regulation of reproductive functions....
Palavras-chave: Neuropeptide Y; Hypothalamus; Dorsal raphe nucleus; Reproductive behavior.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4530

A novel validated UPLC method for quantitation of lopinavir and ritonavir in bulk drug and pharmaceutical formulation with its impurities
Provedor de dados: 60
Autores: Killi,Gnana Deepika; Maddinapudi,Rama Krishna; Dinakaran,Sathis Kumar; Harani,Avasarala.
A simple gradient Ultra Performance liquid chromatographic method (UPLC) was developed for determination of lopinavir and ritonavir from its related impurities and assay for the ﬁrst time. This method involves the use of a C18 (Acquity UPLC BEH C18, 50 × 2.1 mm, 1.7 µm) column thermostated at 30 oC using triethylamine (pH 2.2): 0.1% H3PO4 in acetonitrile and methanol (85:15) as mobile phase in gradient elution mode. A Photo Diode Array (PDA) detector set at 215 nm was used for detection with flow rate 0.4 mL/min. This method was validated over the range of limit of quantitation (LOQ) to 50 to 150% of impurity speciﬁcation limit and of working concentration for assay. The developed method was validated for linearity, range, precision, accuracy and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lopinavir/determination; Ritonavir/determination; Ultra Performance liquid chromatography/qualitative analysis; Ultra Performance liquid chromatography/quantitative analysis; Bulk drugs/qualitative analysis; Pharmaceutical formulations/qualitative analysis; Pharmaceutical formulations/impurity profile; Bulk drugs/impurity profile.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502014000200301

A Numerical Investigation for Underwater Fluid-Netting Interaction Problem
Provedor de dados: 5
Autores: Mnassri, Ilyes; Le Touze, David; Vincent, Benoit; Alessandrini, Bertrand.
The present work investigates an application-oriented issue in the marine and fisheries researches domain. However much trawl structure codes that simulate dynamic behavior of submerged nets, in continuous interaction with surrounded ocean water, still need more accuracy and precision due to the fact that the sea water is mainly considered as a fluid with a uniform velocity and intensity, and so the effects of small turbulence rates were neglected. When this little inaccuracy occurs in the first step of the net displacement prediction, a large error could manifests in the form of the simulated net, and as consequence, drag forces wrongly estimated. In the purpose to overcome the lack of data information exchange during the fluid structure interaction, a co...
Tipo: Text
Palavras-chave: Net deployment; Navier-Stokes; Tait EOS; Riemann solver.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00127/23834/21759.pdf

A Numerical Stochastic Control model of Range Management
Provedor de dados: 31
Autores: Beard,   Rodney.
An optimal stochastic control model of grazing that incorporates both pasture and livestock dynamics is presented. The model is solved numerically using Markov chain approximation methods. Markov chain approximation methods have a number of advantages as a means of solving stochastic optimal control methods compared with the usual alternatives. In particular, optimal control of the approximating Markov chain may be determined using Linear programming methods, thus making optimal stochastic control methods accessible to a wider audience.
Tipo: Presentation
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2000
URL: http://purl.umn.edu/123604

A Numerical Stochastic Control model of Range Management
Provedor de dados: 31
Autores: Beard,   Rodney.
An optimal stochastic control model of grazing that incorporates both pasture and livestock dynamics is presented. The model is solved numerically using Markov chain approximation methods. Markov chain approximation methods have a number of advantages as a means of solving stochastic optimal control methods compared with the usual alternatives. In particular, optimal control of the approximating Markov chain may be determined using Linear programming methods, thus making optimal stochastic control methods accessible to a wider audience.
Tipo: Presentation
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2000
URL: http://purl.umn.edu/123643

A numerical study of turbulent processes in the marine upper layers
Provedor de dados: 5
Autores: Klein, Patrice; Coantic, Michel.
A second-order turbulence closure model, similar to Mellor and Yamada's (1974) level-3 model, is implemented. This is used to investigate the role of the different turbulent processes and the resulting dynamical and thermal structures, for oceanic upper layers subjected to a variety of unsteady atmospheric forcings. From the distributions obtained for current and temperature, turbulence levels, the production, transfer and dissipation terms in the turbulent kinetic energy and temperature variance budgets, the physics of the oceanic mixed layer and thermocline can be discussed and comparisons made with the models of Mellor and Durbin (1975), Warn-Varnas and Piacsek (1979) and Kundu (1980) and some experimental data. Most often, shear production and viscous...
Tipo: Text
Ano: 1981
URL: http://archimer.ifremer.fr/doc/00254/36569/35122.pdf

A Paradigm for Biology&amp;#x27;s Next Revolution
Provedor de dados: 17
Autores: Fredric D. R. Young.
A recent essay on biology&amp;#x27;s next revolution described attributes of a future theory of biology that would replace post hoc modeling with an interplay between quantitative prediction and experimental test, more characteristic of the physical sciences1. The article suggested that flux from the environment whether it be energy, chemicals metabolites, or genes is a defining characteristic of life. The essay also suggests that an interdisciplinary approach to collective phenomena centered on statistical mechanics and dynamical systems theory will be required to make use of this perspective. Over the last 30 years we have developed an approach to drug discovery and translational research that is based on a paradigm for complex systems modeling that fits...
Tipo: Manuscript
Palavras-chave: Biotechnology.
Ano: 2008
URL: http://precedings.nature.com/documents/1770/version/1

A paso lento.
Provedor de dados: 121
Tipo: Text
Palavras-chave: DERECHOS HUMANOS; JUSTICIA; CONTROL DE DROGAS; DEMOCRACIA.
Ano: 1999
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=9373&tab=opac&oai:flacso.org.ec:9373

A PCR Based Survey of Babesia ovata in Cattle from Various Asian, African and South American Countries
Provedor de dados: 19
Autores: SIVAKUMAR, Thillaiampalam; ASADA, Masahito; BATTSETSEG, Badgar; HUANG, Xiaohong; LAN, Dinh Thi Bich; INPANKAEW, Tawin; P. YBAÑEZ, Adrian; ALHASSAN, Andy; THEKISOE, Oriel M. M.; DE MACEDO, Alan Caine Costa; INOKUMA, Hisashi; IGARASHI, Ikuo; YOKOYAMA, Naoaki; 猪熊, 壽; 五十嵐, 郁男; 横山, 直明.
Babesia ovata is a tick-transmitted hemoprotozoan parasite that infects cattle. In our study, bovine blood samples (n=2,034) were collected from 10 different countries (Brazil, China, Ghana, Japan, Mongolia, the Philippines, South Africa, Sri Lanka, Thailand and Vietnam) and DNA extracted. The DNA samples were screened using an established and specific polymerase chain reaction (PCR) assay targeting the Apical membrane antigen 1 (AMA-1) gene. Parasite DNA was detected among samples collected from Japan, Mongolia and Thailand. Sequence analyses confirmed that the PCR assay detected only B. ovata AMA-1, and that amplicons from different geographical locations were conserved. Our findings highlight the importance of designing adequate strategies to control B....
Palavras-chave: AMA-1; Babesia ovata; Cattle; Mongolia; Thailand.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4016

A PCR-based survey of animal African trypanosomosis and selected piroplasm parasites of cattle and goats in Zambia
Provedor de dados: 19
Autores: Musinguzi, Simon Peter; Suganuma, Keisuke; Asada, Masahito; Laohasinnarong, Dusit; Sivakumar, Thillaiampalam; Yokoyama, Naoaki; Namangala, Boniface; Sugimoto, Chihiro; Suzuki, Yasuhiko; Xuan, Xuenan; Inoue, Noboru.
We screened cattle and goats from the districts of Chama, Monze and Mumbwa in Zambia for animal African trypanosomes, Babesia bigemina and Theileria parva using PCRs; 38.1% of the samples tested positive for at least one of the parasite species. The most common parasite was Trypanosoma vivax (19.8%). Its incidence was significantly higher in goats than in cattle, (P&lt;0.05). B. bigemina was found in samples from all the three areas, making it the most widespread of the parasites in Zambia. Among the tested samples, 12.0% of the positive samples were mixed infections. There were significant differences in the infection rates of T. vivax (Mumbwa had a significantly higher infection rate [39.6%, P&lt;0.0001]), Th. parva (Monze had the only cases...
Palavras-chave: Animal African trypanosomosis; Cattle; Goat; Piroplasmosis; Zambia.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4389

A physical-biogeochemical coupling scheme for modeling marine coastal ecosystems
Provedor de dados: 5
Autores: Filgueira, Ramon; Grant, Jon; Bacher, Cedric; Carreau, Michel.
Ecological modeling of dynamic systems such as marine environments may require detailed spatial resolution when the modeled area is greatly influenced by complex physical circulation. Therefore, the simulation of a marine ecosystem must be underlain by a physical model. However, coupling hydrodynamic and biogeochemical models is not straightforward. This paper presents a modeling technique that can be used to build generic and flexible fully-spatial physical-biogeochemical models to study coastal marine ecosystems using a visual modeling environment (VME). The model core is constructed in Simile, a VME that has the capacity to create multiple instances of submodels that can be interconnected, producing a fully-spatial simulation. The core is designed to...
Tipo: Text
Palavras-chave: Physical-biogeochemical coupling; Marine spatial planning; Aquaculture; Simile.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00071/18231/15842.pdf

A physiologically-based model of Cirsium arvense and Tussilago farfara growth and control
Provedor de dados: 21
Autores: Holst, Niels; Riemens, Marleen; Rasmussen, Ilse A.
Perennial herbs can be difficult to manage because of their underground storage organs which live sheltered from observation and control. In this paper, we describe the development of a population dynamics model for two perennial weeds, Cirsium arvense and Tussilago farfara. The model is physiologically based and includes plant growth and development,  and mowing as a control option. Model performance was compared with field data from monospecific stands of C. arvense in Denmark and Netherlands and of T. farfara in Denmark. Finally, optimal mowing strategies were explored with the model.
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2012
URL: http://orgprints.org/20650/4/20650.pdf

A PI3K-mediated negative feedback regulates Drosophila motor neuron excitability
Provedor de dados: 17
Autores: Eric Howlett; Curtis C. J. Lin; William Lavery; Michael Stern.
Negative feedback can act as a homeostatic mechanism to maintain neuronal activity at a particular specified value. At the Drosophila neuromuscular junction, a mutation in the type II metabotropic glutamate receptor gene (mGluRA) increased motor neuron excitability by disrupting an autocrine, glutamate-mediated negative feedback. We show that mGluRA mutations increase neuronal excitability by preventing PI3 kinase (PI3K) activation and consequently hyperactivating the transcription factor Foxo. Furthermore, glutamate application increases levels of phospho-Akt, a product of PI3K signaling, within motor nerve terminals in an mGluRA-dependent manner. In humans, PI3K and type II mGluRs are implicated in epilepsy, neurofibromatosis, autism, schizophrenia and...
Tipo: Manuscript
Palavras-chave: Molecular Cell Biology; Neuroscience.
Ano: 2008
URL: http://precedings.nature.com/documents/1767/version/1

A pilot study on genetic variation in purine-rich elements in the nephrin gene promoter in type 2 diabetic patients
Provedor de dados: 48
Autores: GONZÁLEZ,RODRIGO; TIRADO,ARES; BALANDA,MONSERRAT; ALVO,MIRIAM; BARQUÍN,INÉS; DURRUTY,PILAR; LOBOS,SERGIO; SEELENFREUND,DANIELA.
Diabetic nephropathy (DN) is one of the major complications of type 2 diabetes and is associated with coronary disease. Nephrin, a protein mainly expressed in glomeruli, is decreased in DN and other kidney diseases. Since insulin levels are misregulated in type 2 diabetes, a possible connection between DN and its decreased nephrin expression could be the presence of regulatory elements responsive to insulin in the nephrin gene (NPHS1) promoter region. In this work, using bioinformatic tools, we identified a purine-rich GAGA element in the nephrin gene promoter and conducted a genomic study in search of the presence of polymorphisms in this element and its possible association with DN in type 2 diabetic patients. We amplified and sequenced a 514 bp promoter...
Tipo: Journal article
Palavras-chave: GAGA box; Gene promoter; Nephrin; Polymorphism.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602007000400010

A pluralistic methodology for analysing supply chains
Provedor de dados: 31
Autores: Murray-Prior,   Roy B.; Rola-Rubzen,   Maria Fay; McGregor,   Murray J.; Batt,   Peter J.; Concepcion,   Sylvia B.; Rasco,   Eufemio; Digal,   Larry N.; Manalili,   Nerlita M.; Moran,   Antonio; Ellson,   Adela; Montiflor,   Marilou O.; Hualda,   Luis; Migalbin,   Lorraine.
Special problems are presented when analysing supply chains because of the complexity of the relationships. In addressing this problem for a vegetable supply chain in Mindanao a pluralistic methodology is used. A soft systems framework was used to structure and analyse the problem and identify relevant systems. Issues we are addressing are efficiencies along the supply chain (including input supply issues, output marketing, quality control and transport) and relationships between the various participants in the supply chain. Qualitative and quantitative data collection methods have been used. Analysis is being conducted with qualitative data analysis techniques, LP farm household models, transaction cost economics, gap analysis, factor analysis and...
Tipo: Conference Paper or Presentation
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2003
URL: http://purl.umn.edu/57926

A poda do algodoeiro herbáceo para os vales úmidos do sertão nordestino.
Provedor de dados: 14
Autores: AZEVEDO, D. M. P. de; BELTRAO, N. E. de M.; NOBREGA, L. B. da.
bitstream/item/110876/1/COMTEC5.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Herbaceo; Rotacao; Cultura; Controle; Brasil; Nordeste; Paraiba; Annual cotton; Weed; Control.; Algodão; Erva Daninha; Pratica Cultural.; Poda; Pruning.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262473

A POLLUTION TRADING SYSTEM WITH COST ASSYMETRY: An Application to Nonpoint Source Trading in the Boone River Watershed
Provedor de dados: 31
Autores: Valcu,   Adriana M.; Kling,   Catherine L.
The goal of watershed scale analysis is to assign to each field unit the best set of agricultural practices in order to achieve a maximum outcome from both environmental and economic perspectives. Watershed physically based models linked to multiobjective optimization models can overcome the high dimensionality of watershed pollution problem. Market based instruments such as permit trading settings which consider abatement measures’ cost heterogeneity have been regarded as being superior to command and control programs. Empirical analysis reveals that when local environmental authority and farmers have different cost information, a permit trading program has the potential to offer cost savings.
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/103719

A population-based study of glutathione-S-transferase M1, T1 and P1 genotypes
Provedor de dados: 17
Autores: Monika Sivo&amp;#x148;ov&amp;#xe1;; Iveta Waczul&amp;#xed;kov&amp;#xe1;; Du&amp;#x161;an Dobrota; Tatiana Mat&amp;#xe1;kov&amp;#xe1;; Jozef Hatok; Peter Ra&amp;#x10d;ay; J&amp;#xe1;n Kliment.
A retrospective study on healthy, unrelated subjects was conducted in order to estimate population glutathione-S-transferases (GST) genotype frequencies in Slovak population of men and compare our results with already published data (GSEC project)^1^. A further aim of the study was to evaluate frequencies of the _GST_ polymorphisms also in patients with prostate cancer in order to compare the evaluated proportions with those found in the control subjects. Analysis for the _GST_ gene polymorphisms was performed by PCR and PCR-RFLP. We found that the proportions are not significantly different from those estimated in a European multicentre study or from the results published by another group in Slovakia. We found significantly increased age-standardized...
Tipo: Manuscript
Palavras-chave: Cancer; Genetics &amp; Genomics.
Ano: 2008
URL: http://precedings.nature.com/documents/2559/version/1

A PORTFOLIO OF NUTRIENTS: SOIL AND SUSTAINABILITY
Provedor de dados: 31
Autores: Bond,   Craig A.; Farzin,   Y. Hossein.
This paper develops a basic dynamic economic model that can be used for theoretical and numerical analysis of optimal soil management practices. A dynamic biophysical/economic optimal control model is developed in a multi-disciplinary framework, treating soil as a multi-pool portfolio of a particular limiting mobile nutrient (e.g. nitrogen). This specification allows for fertilizer to directly enter the active pool, while tillage initially affects the decadal pool, reflecting the realities of agricultural production. We examine the properties of the steady-state and the time paths of the optimal solutions. In addition, alternative sustainability criteria of farm-level agricultural practices are presented, and the optimal solution of the problem is...
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management.
Ano: 2004
URL: http://purl.umn.edu/20035

A possible examination method for observing agriculture
Provedor de dados: 31
Autores: Nabradi,   Andras; Nagymihaly,   Kornelia Ficzere.
On the basis of our examinations we have come to the conclusion that longitudinal examinations are the simplest and most up-to-date methods as well as the most cost-efficient ones to follow the decision-making, preparatory data collecting, processing and analysing opportunities serving the sustainability of agriculture better and better together with tracing down the feedback about the decisions to see if the given measure has really resulted in reaching the objectives. The method was proved to be able to supply both micro-and macro-level information in the desired breakdown, groupings and systems of connections. The development successive (panel) examination that we applied can serve as the basis of making decisions affecting huge areas by means of total...
Tipo: Conference Paper or Presentation
Palavras-chave: Longitudinal examination; Method; Application; Research Methods/ Statistical Methods.
Ano: 2008
URL: http://purl.umn.edu/44188

A possible relationship between gluconeogenesis and glycogen metabolism in rabbits during myocardial ischemia
Provedor de dados: 42
Autores: AGUIAR,RAQUEL R. DE; VALE,DANIELA F.; SILVA,RENATO M. DA; MUNIZ,YOLANDA P.; ANTUNES,FERNANDA; LOGULLO,CARLOS; OLIVEIRA,ANDRÉ L.A.; ALMEIDA,ADRIANA J. DE.
ABSTRACT Ischemia is responsible for many metabolic abnormalities in the heart, causing changes in organ function. One of modifications occurring in the ischemic cell is changing from aerobic to anaerobic metabolism. This change causes the predominance of the use of carbohydrates as an energy substrate instead of lipids. In this case, the glycogen is essential to the maintenance of heart energy intake, being an important reserve to resist the stress caused by hypoxia, using glycolysis and lactic acid fermentation. In order to study the glucose anaerobic pathways utilization and understand the metabolic adaptations, New Zealand white rabbits were subjected to ischemia caused by Inflow occlusion technique. The animals were monitored during surgery by pH and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gene expression; Glycogen; Ischemia; Myocardium; Rabbit.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401683

A potential flow based flight simulator for an underwater glider
Provedor de dados: 5
Autores: Phoemsapthawee, Surasak; Le Boulluec, Marc; Laurens, Jean-marc; Deniset, Francois.
Underwater gliders are recent innovative types of autonomous underwater vehicles (AUVs) used in ocean exploration and observation. They adjust their buoyancy to dive and to return to the ocean surface. During the change of altitude, they use the hydrodynamic forces developed by their wings to move forward. Their flights are controlled by changing the position of their centers of gravity and their buoyancy to adjust their trim and heel angles. For better flight control, the understanding of the hydrodynamic behavior and the flight mechanics of the underwater glider is necessary. A 6-DOF motion simulator is coupled with an unsteady potential flow model for this purpose. In some specific cases, the numerical study demonstrates that an inappropriate stabilizer...
Tipo: Text
Palavras-chave: Underwater glider; Hydrodynamics; Potential flow; 6DOF; Newton-Euler equation; AUVs.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00171/28227/26480.pdf

A Practical Algorithm for Multiple-Phase Control Systems in Agricultural and Natural Resource Economics
Provedor de dados: 31
Autores: Doole,   Graeme J.
Many important problems in agricultural and natural resource economics concern an intertemporal choice between alternate dynamic systems. This significance has motivated a theoretical literature generalizing the necessary conditions of Optimal Control Theory to multiple-phase problems. However, gaining detailed insight into their practical management is difficult because general numerical solution methods are not available. This paper resolves this deficiency through the development of a flexible and efficient computational algorithm based on a set of necessary conditions derived for finite-time, multiple-phase systems. Its effectiveness is demonstrated in an application to a nontrivial crop rotation problem.
Tipo: Journal Article
Palavras-chave: Crop management; Multiple-phase systems; Optimal control; Crop Production/Industries; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/50082

A practical approach for assessing the efficiency of coated urea on controlling nitrogen availability
Provedor de dados: 53
Autores: Mesquita,Geisa Lima; Zambrosi,Fernando César Bachiega; Cantarella,Heitor.
ABSTRACT We propose an approach for assessing the efficiency of coating materials on controlling nitrogen (N) availability to plants. It is based on the use of coated and soluble urea (UR) applied to corn over 3 growing cycles, as follows: coated UR with longevity of 2 (UR-2m) or 4 months (UR-4m) with application of 900 mg N∙pot−1 at the beginning of the experiment, soluble UR with a split application of 900 mg N∙pot−1 (300 mg N∙pot−1 per growing cycle, UR-3x), soluble UR with a sole application of 900 mg N∙pot−1 at the beginning of the experiment (UR-1x), and a control treatment. At the end of each growing cycle, shoots were harvested to estimate N provision by the UR by quantifying dry matter (DM) and N uptake. In the first cycle, UR-2m and UR-4m...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coating; Fertilizer efficiency; Nitrogen fertilizer; Nutrient uptake.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000200311

A Preliminary Analysis of the Benefits of Introducing Apomixis into Rice
Provedor de dados: 31
Autores: Frisvold,   George B.; Bicknell,   Kathryn; Bicknell,   Ross.
The objective of this research is to undertake an ex ante economic analysis of basic scientific research that aims to identify the gene(s) that control apomictic reproduction, with the ultimate aim of transferring the characteristic into commercially important crops. This paper reports very preliminary results, using the introduction of apomixis into rice as a case study. Apomixis is a natural, asexual method of plant reproduction resulting in offspring that are genetically identical to the mother plant. Apomixis promises to revolutionize plant breeding by providing a system for crop improvement that allows any desired variety, including hybrids, to breed true. This ability will make both breeding and seed production more efficient. It offers the...
Tipo: Conference Paper or Presentation
Palavras-chave: Agribusiness; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Land Economics/Use; Production Economics; Research Methods/ Statistical Methods.
Ano: 2005
URL: http://purl.umn.edu/98515

A PRELIMINARY FEASIBILITY FOR ESTABLISHING A MULTI-SPECIES MEAT PROCESSING PLANT IN SOUTHWESTERN NORTH DAKOTA
Provedor de dados: 31
Autores: Nudell,   Daniel J.; Kraenzel,   David G.; Petry,   Timothy A.; Faller,   Timothy; Hughes,   Harlan G.; Brown,   Erin.
The number of small commodity livestock slaughter plants in the Upper Northern Plains region continues to decline.  Significant factors contributing to this decline include:  1) pressure to consolidate, thereby capturing economies of scale; 2) relatively stringent federal inspection specifications, along with; 3) HACCP (Hazardous Analysis Critical Control Points) requirements. At the same time, consumer demand (markets) for specialty, selected, and exotic meats appears to be growing.  For example, the recent market successes in Europe evidenced by the North American Bison Cooperative based in New Rockford, North Dakota. Several alternative livestock producer groups have emerged which include lamb, ratite, elk, deer, goat, poultry, rabbit, specialty beef,...
Tipo: Working or Discussion Paper
Palavras-chave: Multi-species; Specialty meats; Specialty livestock; Alternative livestock; Economies of scale; HACCP (Hazardous Analysis Critical Control Points); Slaughter plants; Processing plants; Community/Rural/Urban Development; Agribusiness.
Ano: 1999
URL: http://purl.umn.edu/23293

A preliminary study of the aetiology, epizootiology and pathology of 'rusty-yellow' skin discolouration of tilapia species (Oreochromis niloticus and Tilapia zilli
Provedor de dados: 20
Autores: Oladosu, H.A.; Ayinla, O.A.; Ajiboye, M.O.; Egbomuche, G.; Onuoha, G.C.
An upsurge in the prevalence of rusty-yellow discoloration of the skin of the two tilapia species, being cultured at the African Regional Aquaculture Centre (ARAC), gave a basis for an urgent clinical and epizootiological studies of the condition.  The studies were therefore carried out along with the performance of some catfishes in polyculture with Oreochromis niloticus, under the integrated poultry cum fish farming system. It was observed that this condition affects the tilapia species only, and the antemortem, and postmortem examination revealed that the discolouration is restricted to the surface of the cutaneous tissue; affecting the underside of the exposed part of the scales, the fins and the skin flap covering the scale pockets, mostly in adult...
Tipo: Report
Palavras-chave: Aetiology; Pathology; Aetiology; Pathology; Http://aims.fao.org/aos/agrovoc/c_15588; Http://aims.fao.org/aos/agrovoc/c_5631.
Ano: 1990
URL: http://hdl.handle.net/1834/2387

A preliminary study on origin of Callosciurus squirrels introduced into Japan
Provedor de dados: 19
Autores: Oshida, Tatsuo; Torii, Harumi; Lin, Liang-Kong; Lee, Jen-Kai; Chen, Yean-Jen; Endo, Hideki; Sasaki, Motoki; 押田, 龍夫; 佐々木, 基樹.
To examine the origin of Callosciurus erythraeus introduced to Japan, we compared mitochondrial DNA control region sequences of eight haplotypes from Japan with those of 42 haplotypes from Taiwan. There were two distinct phylogroups in Japan. Six haplotypes from Japan were included in the Taiwan population, suggesting that they could have been introduced from Taiwan. Two haplotypes, however, were distantly related to the cluster consisting of all Taiwanese haplotypes and six Japanese haplotypes. The uncorrected genetic distances (5.2-5.7%) between these two haplotypes and the out-group (Callosciurus finlaysonii from Laos) were less than those (8.3-9.8%) between these two haplotypes and the cluster consisting of the other six Japanese haplotypes and all...
Palavras-chave: Alien squirrel; Callosciurus erythraeus; Callosciurus finlaysonii; Mitochondrial DNA control region; Taiwan.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3039

A PRINCIPAL-AGENT MODEL FOR REGIONAL PEST CONTROL ADOPTION
Provedor de dados: 31
Autores: Ahouissoussi,   Nicolas B.C.
Investigating the underlying producer characteristics associated with regional pest control adoption revealed an interesting proposition. Early adopting producers of firm-specific techniques with characteristics including higher education, more specialized operations, and larger sized business units are dissatisfied with a regional pest control technique. This study provides an explanation of the proposition based on a principal-agent model. Empirical support for the proposition is also presented by developing a multinomial logit model for predicting producers' dissatisfaction with boll weevil eradication.
Tipo: Journal Article
Palavras-chave: Regional pest control; Principal-agent model; Proposition; Firm-specific; Industry-specific; Crop Production/Industries.
Ano: 1995
URL: http://purl.umn.edu/15331

A procedure to evaluate the efficiency of surface sterilization methods in culture-independent fungal endophyte studies
Provedor de dados: 58
Autores: Burgdorf,R.J.; Laing,M.D.; Morris,C.D.; Jamal-Ally,S.F.
Extraneous DNA interferes with PCR studies of endophytic fungi. A procedure was developed with which to evaluate the removal of extraneous DNA. Wheat (Triticum aestivum) leaves were sprayed with Saccharomyces cerevisiae and then subjected to physical and chemical surface treatments. The fungal ITS1 products were amplified from whole tissue DNA extractions. ANOVA was performed on the DNA bands representing S. cerevisiae on the agarose gel. Band profile comparisons using permutational multivariate ANOVA (PERMANOVA) and non-metric multidimensional scaling (NMDS) were performed on DGGE gel data, and band numbers were compared between treatments. Leaf surfaces were viewed under variable pressure scanning electron microscopy (VPSEM). Yeast band analysis of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endophyte; Fungi; DNA; Surface sterilization.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300030

A produção de maracujá na região do cerrado: caracterização socioeconômica.
Provedor de dados: 14
Autores: AGUIAR, J. L. P. de; SPERRY, S.; JUNQUEIRA, N. T. V.
ABSTRACT: In the thirteen years, Brazil has produced about 353 thousands tons/year of passion fruit and processed 123.55 thousands/year. The per capita consumption was 1.5 kg/person/year of fresh fuit and 0.33 kg/person/year as juice and pulp. Additionally, it can be emphasized that the production in the fruit market as sourness passion fruit in Brazilian Savannahs in the year 2000, reached 50.5 thousand tons/year, from which 35% was destined to industry. This study was conducted as field research interview, carried out in the 1998/2000 period, considering a sample of 11% of a population, composed by passion fruit producers, technical assistance personnel, nursery producers, and industry managers, involving twelve production municipalities. Additionally,...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Socioeconomia; Socioeconomic; Production; Comercialization.; Agronegócio; Comercialização; Maracujá; Passiflora Edulis; Produção; Sistema de Produção.; Agribusiness; Farming systems; Passion fruits.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567392

A PROFITABILITY PERSPECTIVE ON THE FURTHER DEVELOPMENT AND USE OF FORMALIZED DAIRY FARM CONTROL AND PLANNING SYSTEMS
Provedor de dados: 31
Autores: Fuller,   Earl I.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1987
URL: http://purl.umn.edu/13501

A protein expression system for tandem affinity purification in Xanthomonas citri subsp. citri
Provedor de dados: 58
Autores: Dantas,Giordanni C.; Martins,Paula M.M.; Martins,Daniela A.B.; Gomes,Eleni; Ferreira,Henrique.
Abstract Citrus canker, caused by the Gram-negative bacterium Xanthomonas citri subsp. citri (Xac), is one of the most devastating diseases to affect citrus crops. There is no treatment for citrus canker; effective control against the spread of Xac is usually achieved by the elimination of affected plants along with that of asymptomatic neighbors. An in depth understanding of the pathogen is the keystone for understanding of the disease; to this effect we are committed to the development of strategies to ease the study of Xac. Genome sequencing and annotation of Xac revealed that ∼37% of the genome is composed of hypothetical ORFs. To start a systematic characterization of novel factors encoded by Xac, we constructed integrative-vectors for protein...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrus canker; Expression vectors; TAP-tag.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200518

A proteomic study of resistance to Brown Ring disease in the Manila clam, Ruditapes philippinarum
Provedor de dados: 5
Autores: Smits, M.; Artigaud, Sebastien; Bernay, B.; Pichereau, Vianney; Bargelloni, L.; Paillard, Christine.
Marine mollusk aquaculture has more than doubled over the past twenty years, accounting for over 15% of total aquaculture production in 2016. Infectious disease is one of the main limiting factors to the development of mollusk aquaculture, and the difficulties inherent to combating pathogens through antibiotic therapies or disinfection have led to extensive research on host defense mechanisms and host-pathogen relationships. It has become increasingly clear that characterizing the functional profiles of response to a disease is an essential step in understanding resistance mechanisms and moving towards more effective disease control. The Manila clam, Ruditapes philippinarum, is a main cultured bivalve species of economic importance which is affected by...
Tipo: Text
Palavras-chave: Bivalve; Diseases; Resistance; Manila clam; Vibrio tapetis; Proteomics; Immune response.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00615/72670/71758.pdf

A qualitative study exploring perspectives towards rational use of medicines in Pakistan's Malaria Control Program (MCP)
Provedor de dados: 60
Autores: Malik,Madeeha; Hassali,Mohamed Azmi; Shafie,Asrul Akmal; Hussain,Azhar.
Malaria is one of the most important global public health problems threatening the health of the population owing to prevailing socio-economic conditions and epidemiological reasons in Pakistan. This qualitative study has focused on the perspectives held towards the rational use of medicine intervention among malaria control program officials. Eight semi-structured interviews with all officials working for the malaria control program in Islamabad were conducted. The interviews, which were audio-taped and transcribed verbatim, were evaluated by thematic content analysis and by all authors. All respondents agreed on successful implementation of the malaria control program in Pakistan for controlling malaria by improving diagnostic and treatment facilities...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malaria; Malaria Control Program; Drug/rational use; Intervention; Pakistan.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502013000200014

A quick review of the production and commercialization of the main vegetables in Brazil and the world from 1970 to 2015
Provedor de dados: 75
Autores: Camargo Filho,Waldemar P; Camargo,Felipe P.
ABSTRACT In the biennium 2013-14, the world produced 1,134.27 million tons of vegetables annually. The production of garlic, onion, potato, tomato and watermelon accounted for 66.5% of the total. Brazil, in 2012, considering 40 vegetables, produced around 23 million tons, in 900.0 thousand hectares. Potatoes, tomatoes (table and processing), onions, watermelons, carrots, sweet potatoes, lettuce and cabbage, the main vegetables in Brazil, accounted for 64.0% of the total. This work presents the evolution of production, commercialization, and availability of garlic, onions, potatoes, tomatoes and watermelons in Brazil and in the world. In Brazil, the work focused on two distinct periods: 1970-1990 {when the Support Program for Production and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cultivated area; Production; Public policies; Garlic; Onion; Potato; Tomato; Watermelon.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000200160

A Race to Develop: A Competing Risk Examination of the Pattern and Timing of Land Development in an Exurban County
Provedor de dados: 31
Autores: Wrenn,   Douglas H.
Rural-urban fringe counties (i.e. counties adjacent to other counties with large and growing urban centers) often experience intense development pressure as a result of urban growth and expansion. While growth-initiated development can take many forms, the majority of the development that occurs in these exurban counties is in the form of single-family residential dwellings. Moreover, it is in the form of subdivision developments that range in size from very small two and three lot minor subdivisions to massive multi-phase major subdivisions with hundreds of lots and numerous amenities. In this paper, we focus on the land development patterns in Carroll County, MD, an urban-fringe county in the Baltimore-Washington D.C. metro region. The purpose of this...
Tipo: Conference Paper or Presentation
Palavras-chave: Land Economics/Use.
Ano: 2010
URL: http://purl.umn.edu/62012

A randomized controlled trial to compare the use of homeopathy and internal Teat Sealers for the prevention of mastitis in organically farmed dairy cows during the dry period and 100 days post-calving.
Provedor de dados: 21
Autores: Klocke, P.; Ivemeyer, S.; Butler, G.; Maeschli, A.; Heil, F.
Introduction: Routine use of antibiotics to prevent mastitis in dairy cows is prohibited by organic farming regulations. Internal Teat Sealers have been proposed as an alternative. We compared two drying-off (DO) supporting measures (Internal Teat Sealer and Homeopathy) to an untreated control group to assess their protective effects against clinical mastitis and intra-mammary infections during dry period of dairy cows.  Methods: A field trial with 102 dairy cows from 13 Swiss organic dairy farms was conducted. Cows were randomly assigned to one of three groups within a herd. In the Internal Teat Sealer group (ITS; 36 cows) cows were treated with the commercial ORBESEAL (Pfizer) in all four quarters immediately after the last milking. In the Homeopathy...
Tipo: Journal paper
Palavras-chave: Production systems; Dairy cattle; Animal husbandry; Health and welfare.
Ano: 2010
URL: http://orgprints.org/17117/1/

A RANGELAND GRASSHOPPER INSURANCE PROGRAM
Provedor de dados: 31
Autores: Skold,   Melvin D.; Davis,   Robert M.
The incidence of benefits and costs from controlling rangeland grasshoppers on public grazing lands poses problems of economic efficiency and distributional equity. Public grasshopper control programs operate like public disaster assistance. However, grasshopper infestations are an insurable risk. This article proposes a rangeland grasshopper insurance program which reduces the economic inefficiencies and distributional inequities of the existing program.
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1995
URL: http://purl.umn.edu/30765

A Rapid Phenotyping Method for Imazamox Resistance in Wheat
Provedor de dados: 87
Autores: BRECCIA,G.; BISIO,M.B.; PICARDI,L.; NESTARES,G.
ABSTRACT: The availability of imidazolinone (IMI) resistant cultivars has provided an effective option for weed control in wheat production systems. IMI herbicides control several weeds, including Avena fatua and Lolium multiflorum, which are the most frequent grass weeds in wheat crops of the Argentine Pampas. The aim of this study was to develop a soil-less method that allows rapid phenotyping of IMI resistance in wheat. Nine wheat cultivars differing in IMI resistance were evaluated through a between-paper germination method. Herbicide concentrations required to reduce shoot and root length by 50% for resistant cultivars were &gt; 75 fold that of the susceptible cultivars. The response of resistant and susceptible commercial cultivars was assessed in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Imidazolinone; Herbicide resistance; Germination test; Triticum aestivum L.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100344

A rating system for oyster purification. Hazard analysis critical control point (HACCP) application to purification of live oysters
Provedor de dados: 5
Autores: Bird, P.
A Critical Hazard Analysis Rating (CHAR) based on the Hazard Analysis Critical Control Point (HACCP) concept is used to monitor oyster purification in New South Wales (N.S.W.), Australia. Critical areas for assessment include oyster condition, separation of raw and treated oysters, water quality (turbidity, salinity, temperature, aeration, circulation), purification period, flow rate, steriliser efficiency and tank hydraulics. Batch records and product identification are included. Purification supplements a total management program for producing safe oysters. The rating can also be used to endorse oysters produced under industry self-regulatory, quality assurance programs. The four main CHAR areas are operational standards, quality assurance, public health...
Tipo: Text
Palavras-chave: Saccostrea commercialis; Crassostrea gigas; Bivalvia; Marine molluscs; Safety regulations; Public health; Self purification.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1607.pdf

A realizable force feedback-feedforward control loop for a piston wave absorber
Provedor de dados: 5
Autores: Maisondieu, Christophe; Clément, Alain.
We consider the problem of the absorption of 2D water waves by the horizontal motions of a vertical plane in response to the hydrodynamical force it experiences. The solution of this problem is straightforward in the frequency domain. Unfortunately, the transposition of the frequency domain solution to the time domain by inverse Fourier transforming leads to a non-causal impulse response function. Thus it cannot be used just as it is, neither as a control loop for physical absorbing devices nor as a non radiating boundary condition (NRBC) in numerical modeling. In this paper, we propose a method to derive causal approximations of this ideal controller. Two time-domain absorbing relations are proposed, differing in whether or not one knows a dominant...
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00203/31436/29832.pdf

A reappraisal of the vital effect in cultured benthic foraminifer Bulimina marginata on Mg/Ca values: assessing temperature uncertainty relationships
Provedor de dados: 5
Autores: Wit, J. C.; De Nooijer, L. J.; Barras, C.; Jorissen, F. J.; Reichart, G. J.
The reconstruction of past temperatures is often achieved through measuring the Mg/Ca value of foraminiferal test carbonate. The diversity in foraminiferal Mg/Ca-temperature calibrations suggests that there is also a biological control on this proxy. This study presents a new Mg/Ca-temperature calibration for the benthic foraminifer Bulimina marginata, based on cultures under a range of temperatures (4-14 degrees C). Measured Mg/Ca values for B. marginata correlate with temperature (Mg/Ca = (1.10+/-0.10) e((0.045+/-0.009)) T, R-2 = 0.28 p &lt; 0.01). The inter-individual variability is, however, also significant (standard deviation is 10-35% of the average). Before applying this or any calibration, the effect of the inter-individual variability on the...
Tipo: Text
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00249/36045/34589.pdf

A reassessment of the role of serotonergic system in the control of feeding behavior
Provedor de dados: 42
Autores: Medeiros,Magda A.; Costa-e-Sousa,Ricardo H.; Olivares,Emerson L.; Côrtes,Wellington S.; Reis,Luís C.
The role of serotonergic system in the feeding behaviorwas appraised by electrolytic lesions in the dorsal raphe nucleus (DRN) and administration of para-chlorophenylalanine (PCPA, 3 mg/5 mul, icv). Chronic evaluations were accomplished through 120 and 360 days in PCPA-injected and DRN-lesioned rats, respectively. Acute food intake was evaluated in fasted rats and submitted to injection of PCPA and hydroxytryptophan (LHTP, 30 mg/kg, ip). DRN-lesioned rats exhibited 22-80% increase in food intake up to sixth month, whereas the obesity was evident and sustained by whole period. In PCPA-injected rats was observed an initial increase in the food intake followed by hypophagy from 25th to 30th day and a transitory increase of body weight from 5th to 60th day. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food ingestion; Serotonergic system; Dorsal raphe nucleus; Electrolytic lesion; Para-chlorophenylalanine; Obesity.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652005000100008

A Reconsideration of Environmental Federalism
Provedor de dados: 31
Autores: Oates,   Wallace E.
This paper provides a review and assessment of the debate over environmental federalism-the issue of the roles of different levels of government in environmental management. The paper begins with the presentation of three benchmark cases that provide a framework for thinking about the issue. It then offers a review, first of the theoretical literature and second of some new, provocative empirical literature on the race to the bottom. The paper contends that there remains, under certain circumstances, an important role for decentralized government in the setting of environmental standards and the design of regulatory programs. The central government, in addition to setting standards for "national" pollutants, has a fundamental contribution to make in...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental federalism; Environmental management; Environmental policy; Environmental regulation; Environmental Economics and Policy; Q2; H1; H7.
Ano: 2001
URL: http://purl.umn.edu/10460

A Regional Legacy Soil Dataset for Prediction of Sand and Clay Content with Vis-Nir-Swir, in Southern Brazil
Provedor de dados: 90
Autores: Silva,Elisângela Benedet; Giasson,Élvio; Dotto,André Carnieletto; Caten,Alexandre ten; Demattê,José Alexandre Melo; Bacic,Ivan Luiz Zilli; Veiga,Milton da.
ABSTRACT The success of soil prediction by VIS-NIR-SWIR spectroscopy has led to considerable investment in large soil spectral libraries. The aims of this study were 1) to develop a soil VIS-NIR-SWIR spectroscopy approach using legacy soil samples to improve spectral soil information in a regional scale; (2) to compare six spectral preprocessing techniques; and (3) to compare the performance of linear and non-linear multivariate models for prediction of sand and clay content. A total of 1,534 legacy soil samples, stored by Epagri, were collected from agricultural areas in 2009 on a regional scale, covering 260 municipalities of Santa Catarina. Six spectral preprocessing techniques were applied and compared with reflectance spectra (control treatment) in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil spectral library; Multivariate models; Preprocessing techniques; Santa Catarina.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100304

A relationship between antimicrobial peptide gene expression and capacity of a selected shrimp line to survive a Vibrio infection
Provedor de dados: 5
Autores: De Lorgeril, Julien; Gueguen, Yannick; Goarant, Cyrille; Goyard, Emmanuel; Mugnier, Chantal; Fievet, Julie; Piquemal, D; Bachere, Evelyne.
Understanding of antimicrobial defence mechanisms of penaeid shrimp should help in the design of efficient strategies for the management and disease control in aquaculture. In this study, we have specifically analysed the expression in circulating hemocytes of antimicrobial peptides (AMPs) encoding genes, such as PEN2 and PEN3, ALF, crustin, lysozyme and a putative cysteine-rich peptide. We evidenced a relationship between the level of expression of some AMPs and the successful response of the shrimp, Litopenaeus stylirostris, to circumvent a pathogenic Vibrio penaeicida infection. Additionally, significant differences in some AMP transcript amounts are evidenced between control, non-selected shrimp line and the third generation breeding of shrimp selected...
Tipo: Text
Palavras-chave: Real time PCR; Cysteine rich peptide; Crustin; Anti LPS factor; Lysozyme; Penaeidins; Immune response; Vibrio penaeicida; Penaeid; Decapoda; Crustacean.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4524.pdf

A relative paleointensity record of the geomagnetic field since 1.6 Ma from the North Pacific
Provedor de dados: 5
Autores: Yamazaki, Toshitsugu; Kanamatsu, Toshiya.
A paleomagnetic study was conducted on a sediment core KR0310-PC1 taken from the central North Pacific in order to obtain a relative paleointensity record in the Matuyama chron from this region. The core reached to about 1.6 Ma. The age control is based on the correlation of the S ratio (S-0.1T) variations with a global oxygen-isotope stack. Isothermal remanent magnetization (IRM) was used as the normalizer of the relative paleointensity estimation; anhysteretic remanent magnetization (ARM) was not adopted because ARM is sensitive to magnetostatic interaction among magnetic particles, which is evidenced in these sediments by an inverse correlation between the ratio of ARM to saturation IRM (SIRM) and SIRM without significant magnetic grain-size changes....
Tipo: Text
Palavras-chave: Paleomagnetism; Paleointensity; North Pacific; Orbital modulation; Normalizer; Magnetostatic interaction.
Ano: 2007
URL: https://archimer.ifremer.fr/doc/00235/34631/32963.pdf

A Report of the Mosquito Host Range of Pythium guiyangense Su
Provedor de dados: 17
Autores: Xiaoqing Su.
Mosquito causes problems in both disease transmission and disturbance to people&amp;#x27;s daily life. The controlling methods used now are mainly application of chemical pesticides which result in serious harm to environment. Biological control of the pest is one of the ideal ways. But, lack of suitable agent makes it difficult to extend this technique in wider scope. _Pythium guiyangense_ Su is a newly found fungal pathogen of mosquitoes and is promising for practical use. Here we summarize a list of mosquitoes that can be infected by the fungus so far, which shows the potential significance of the application of the fungus in the future.
Tipo: Manuscript
Palavras-chave: Microbiology; Earth &amp; Environment.
Ano: 2008
URL: http://precedings.nature.com/documents/1875/version/1

A Report on the Management of Saltwater Crocodiles (Crocodylus porosus) in the Northern Territory: Results of a Survey of Pastoralists
Provedor de dados: 31
Autores: Tisdell,   Clement A.; Wilson,   Clevo; Swarna Nantha,   Hemanath.
The management of saltwater crocodiles (Crocodylus porosus) in the Northern Territory is an important component of the State’s wildlife management policy. It encompasses saltwater crocodile control (the removal of problem crocodiles dangerous to humans and livestock), and the regulation of harvesting, farming and ranching of saltwater crocodiles for the production of commercial products. The distribution of saltwater crocodiles and their habitats often extend onto private and communal lands along the coastal belt of the Northern Territory,  and therefore are a concern of landholders both Aboriginal and pastoral. This report presents the findings of a study of managers of Northern Territory cattle properties (pastoralists). Their attitudes are surveyed...
Tipo: Working or Discussion Paper
Palavras-chave: Saltwater Crocodiles; Environmental Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/55089

A retrospective study of animal rabies diagnosis in the central region of São Paulo state, Brazil, during a 10-year period
Provedor de dados: 195
Autores: Langoni, H.; Fornazari, F.; Marson, P. M.; Guimarães, F. F.; Menozzi, B. D.; Da Silva, D. B.; Paiz, L. M.; Wanderley, G. G.; Cavalcante, R. V.
Several species of domestic and wild animals can transmit rabies to men. The epidemiology present different patterns according to each region, and the identification of infected animals has great importance to assist prophylatic measures. The present study consists in a retrospective of animal rabies diagnosis realized by the Zoonoses Diagnosis Service (ZDS), from the Veterinary Hygiene and Public Health Department, located at the School of Veterinary Medicine and Animals Science (FMVZ), São Paulo State University (UNESP), Botucatu city (22°53’09”S 48°26’42”W), Brazil. The ZDS is linked to Pasteur Institute of São Paulo State, contributing to rabies control. Most of the samples submitted to rabies diagnosis (over 95%) come from cities located in the...
Tipo: Info:eu-repo/semantics/article
Ano: 2013
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/2512

A retrospective study of canine cutaneous food allergy at a Veterinary Teaching Hospital from Jaboticabal, São Paulo, Brazil
Provedor de dados: 65
Autores: Rondelli,Mariana Cristina Hoeppner; Oliveira,Michele Cristina de Camargo; Silva,Flavio Lopes da; Palacios Junior,Reinaldo Juan Garrido; Peixoto,Mayara Corrêa; Carciofi,Aulus Cavalieri; Tinucci-Costa,Mirela.
Cutaneous food allergy is an adverse immunological response, triggered by antigenic dietary components that may escape the digestion process and are absorbed intact through the gastrointestinal mucosa. In Brazil, there are only a few reports on cutaneous food allergy and antigenicity of food components used in pet food production. Thus, the aim of this report was to assess and describe data from medical records of canine patients diagnosed with cutaneous food allergy at a Veterinary Teaching Hospital from Jaboticabal, SP, Brazil, in order to evaluate epidemiological and clinical aspects related to this skin problem. From 2007 to 2012, 29 dogs received the diagnosis of cutaneous food allergy after an eight-week hypoallergenic elimination trial. Among them,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dogs; Food allergy; Hypoallergenic diet.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015001001819

A Review of Agricultural Policy Evolution, Agricultural Data Sources, and Food Supply and Demand Studies in Egypt
Provedor de dados: 31
Autores: Soliman,   Ibrahim; Fabiosa,   Jacinto F.; Bassiony,   Halah.
Over the years the control of the Government of Egypt on the agricultural sector has increasingly weakened with the progressive elimination of the input subsidy, area control, price control, procurement control, and the constraints in private sector participation in processing and trade. The only remaining major government involvement is the food subsidy in some wheat products, the “baladi” bread subsidy in particular.  Policy analysis studies in Egypt have been made possible because the Government of Egypt collects and publishes significant amounts of agricultural data on a regular basis. Two of the most widely used data sets are the Household Budget Survey conducted and published by the Central Agency for Public Mobilization and Statistics, and the Food...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural data; Agricultural policy; Egypt; Elasticity; Supply and demand.; Agricultural and Food Policy; Demand and Price Analysis.
Ano: 2010
URL: http://purl.umn.edu/59510

A review of analytical methods for the determination of four new phosphodiesterase type 5 inhibitors in biological samples and pharmaceutical preparations
Provedor de dados: 60
Autores: Codevilla,Cristiane Franco; Castilhos,Tamara dos Santos; Bergold,Ana Maria.
The introduction of oral phosphodiesterase type 5 inhibitor therapy in 1998 revolutionized the treatment of erectile dysfunction. Erectile dysfunction is the most common sexual problem in men. It often has a profound effect on intimate relationships and quality of life. The analysis of pharmaceuticals is an important part of the drug development process as well as for routine analysis and quality control of commercial formulations. Whereas the determination of sildenafil citrate, vardenafil and tadalafil are well documented by a variety of methods, there are few publications about the determination of udenafil, lodenafil carbonate, mirodenafil and avanafil. The paper presents a brief review of the action mechanism, adverse effects, pharmacokinetics and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phosphodiesterase type 5 inhibitors/determination; Phosphodiesterase type 5 inhibitors/pharmaceutical preparations; Phosphodiesterase type 5 inhibitors/determination; Phosphodiesterase type 5 inhibitors/biological samples; Analytical methods; Erectile dysfunction.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502013000100002

A review of current European research on organic farming (OF0171)
Provedor de dados: 21
Autores: Keatinge, Ray.
This is the final report of Defra project 0F0171. This text has been extracted from the Executive Summary at the start of the attached report.  In support of its policy to expand organic farming, MAFF sponsors a programme of research and extension (through Organic Conversion Information Service) to provide information to producers on organic systems of production. The purpose of this review is to provide a comprehensive framework which sets out clearly the content and key results of current European research programmes.  The overall objective was to increase the body of knowledge and information available to UK producers and extension workers, and to help direct UK research effort. The priority was to examine northern and western European research...
Tipo: Report
Palavras-chave: "Organics" in general; Research communication and quality; Technology transfer.
Ano: 2000
URL: http://orgprints.org/8150/1/OF0171_180_FRP.pdf

A review of image-based tools for automatic fish ageing from otolith features
Provedor de dados: 5
Autores: Carbini, Sebastien; Chessel, Anatole; Benzinou, Abdesslam; Fablet, Ronan; Mahe, Kelig; De Pontual, Helene.
Most of European fish stocks are assessed using age-based models, and otolith interpretation for age estimations costs several million euros annually. In this context, automated ageing systems would provide a mean to 1) standardize ageing, 2) control ageing consistency within and between ageing laboratories 3) build interpreted image data bases ensuring the information conservation and sharing and 4) improve growth studies while reducing the cost of the acquisition of age data. This paper presents a review of different image-based tools for automatic fish ageing from otolith features within the framework of AFISA (EU STREP project on Automated FISh Ageing coordinated by Ifremer). The full automatic ageing process can be divided into three main steps: 1)...
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00024/13519/10546.pdf

A Review of Integrated Pollution Control Efforts in Selected Countries
Provedor de dados: 31
Autores: Hersh,   Robert.
This report describes the reasons why integrated pollution control (IPC) became accepted as a necessary part of the environmental regulatory systems of the Netherlands, the United Kingdom, and Sweden and examines the experience these countries have had with unified environmental statutes, alternative compliance approaches, cross-media permitting, and other aspects of IPC that are under consideration in this country. The report is organized into five sections. In the first section we provide a brief overview of the intellectual pedigree of integrated pollution control, and discuss arguments that have been put forward by advocates of IPC as well as the counter-arguments of those who have taken a more skeptical view of the technical and political feasibility...
Tipo: Working or Discussion Paper
Palavras-chave: Integrated pollution control; European environmental policy; Environmental compliance and enforcement; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/10792

A review of knowledge: inter-row hoeing &amp; its associated agronomy in organic cereal &amp; pulse crops
Provedor de dados: 21
Autores: J. P., Welsh; N. D., Tillett; M., Home; J. A., King.
The aim of this project was to establish the “state of the art” for inter-row hoeing and its associated agronomic practices in organic cereal and pulse crops.  To achieve this a detailed review of literature was undertaken.  • To facilitate inter-row cultivation in cereal and pulse crops, some adjustment of row spacing may be required.  For cereals, drilling crops in 25 cm rows can reduce yield compared with normal drilling practice, primarily due to greater intra-specific competition amongst the crop (i.e. competition between crop plants).    • The yield penalty resulting from widely spaced crop rows can be minimised using a number of approaches, depending on the drill:  1. Reducing the seed rate in widely spaced crop rows can help to minimise excessive...
Tipo: Report
Palavras-chave: Cereals; Pulses and oilseeds Weed management Technology transfer.
Ano: 2002
URL: http://orgprints.org/6673/1/OF0312_2234_FRP.pdf

A review of the introduced forest pests in Brazil
Provedor de dados: 86
Autores: Schühli,Guilherme Schnell e; Penteado,Susete Chiarello; Barbosa,Leonardo Rodrigues; Reis Filho,Wilson; Iede,Edson Tadeu.
Abstract: Special attention should be given to forest plantings in order to minimize the probability of exotic pest introduction and, consequently, of production losses. The objective of this review was to present, under a historic perspective, the main exotic insects that harm the Brazilian forest sector. Therefore, to better describe the phytosanitary context of introduced forest pests in Brazil, the main information regarding these insects was gathered here. Introduced species and species with a risk of introduction were listed. The following species were registered: 12 exotic introduced species related to eucalyptus, non-quarantine; 9 species related to pine, one quarantine; and 1 species related to teak, quarantine. Overall, the core problems for 57...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exotic pest; Forest pest; Forest sector; Invasive species; Pest resistance; Quarantine.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000500397

A Review of Two Payment Schemes for Watershed Services from China and Vietnam: the Interface of Government Control and PES Theory
Provedor de dados: 7
Autores: Kolinjivadi, Vijay K; Center for International Forestry Research (CIFOR); vijay.kolinjivadi@mail.mcgill.ca; Sunderland, Terry; Center for International Forestry Research (CIFOR); T.Sunderland@cgiar.org.
China and Vietnam have developed some of the most ambitious payments for ecosystem services (PES) initiatives for watershed conservation and forest management. These include the Sloping Land Conversion Programme in China and pilot projects designed to implement Decision 380 and the subsequent national PES law in Vietnam. This study reviews how these two government-driven initiatives are achieving their environment and development objectives in terms of their institutional arrangements, implementation in practice, and sustainability prospects. Although it remains too soon to determine the effects of these programs on watershed services, early evidence indicates that they are resulting in vulnerable land being retired from cultivation supported, in some...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: China; Environment; Payments for ecosystem services; Vietnam; Well-being.
Ano: 2012

A review on medicinal plants used for treating ototoxicity and acoustic trauma induced hearing loss
Provedor de dados: 60
Autores: Mahmoudian-sani,Mohammad-Reza; Sheikhshabani,SomayehHashemi; Mirfakhar,Farzaneh Sadat; Asgharzade,Samira.
Hearing loss induced by chemotherapy and acoustic trauma is mainly associated with two factors, free radical formation and apoptosis pathway activation. Despite numerous efforts on reducing the effects of these factors, no definite strategy is still determined to interfere with and control these processes. In recent studies, various protective agents, including antioxidants have been used on animal models, to inhibit the formation of free radicals thus improving hearing loss.In this review article we will discuss the role of traditional herbal medicine in treatment of noise/drug induced hearing loss, focusing on medicinal plants’ active substances,as well as their mechanisms of action in reducing or preventing the formation of free radicals thus increasing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hearing Loss/ prevention &amp;amp; Control Ototoxicity Acoustic Trauma/ physiopathology Herbal Medicine/ instrumentation Oxidative stress/ drug effects Antioxidants/ therapeutic use Hearing Loss Noise-Induced/ therapy Plants Medicinal/ drug effects.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100701

A revision of two distinct species of Rhipicephalus: R. microplus and R. australis
Provedor de dados: 65
Autores: Ali,Abid; Parizi,Luís Fernando; Ferreira,Beatriz Rossetti; Vaz Junior,Itabajara da Silva.
ABSTRACT:  Rhipicephalus ( Boophilus) species are monoxenous ticks with seasonal distribution in tropical and subtropical regions. For many years, Rhipicephalus micropluswas considered as a single species; however, further analysis split these ticks into two distinct species. Because R. microplusand R. australisshare similar attributes, it is hard to discriminate these two species and explain the changes in the classification of these parasites over the past decades. The reappearance of  R. australisis an outcome of new research, which has afforded to better characterize these probably cryptic species. Evidence based on morphological features, the lack of conspecificity, microsatellite markers, mitochondrial 12S and 16S ribosomal DNA, and mitochondrial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhipicephalus; Boophilus; Microplus; Australis; Taxonomy.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701240

A Risk Assessment Model on Pine Wood Nematode in the EU
Provedor de dados: 31
Autores: Soliman,   T.; Hengeveld,   G.M.; Robinet,   C.; Mourits,   Monique; van der Werf,   Wopke; Oude Lansink,   Alfons G.J.M.
Pine wood nematode, B. xylophilus poses a serious threat for the European forest industry. This study applies a quantitative risk assessment to analyze the risk of pine wood nematode in the EU, by estimating the reduction expected within forestry stock available for wood supply and its downstream roundwood market. Spatial analysis is used to join information on climate suitability, host distribution, pest spread and value of assets. Economic impacts are presented spatially on a NUTS-2 scale based on partial budgeting technique and for the EU as a whole based on partial equilibrium modeling. Results highlight the Southern regions of Europe as high risk areas with a total impact on available forestry stock of 19,000 M € after 20 years of an outbreak and no...
Tipo: Conference Paper or Presentation
Palavras-chave: Risk assessment; Pine wood nematode; Economic analysis; EU; Crop Production/Industries; Risk and Uncertainty.
Ano: 2011
URL: http://purl.umn.edu/116010

A robust HIV-1 viral load detection assay optimized for Indian sub type C specific strains and resource limiting setting
Provedor de dados: 48
Autores: Acharya,Arpan; Vaniawala,Salil; Shah,Parth; Parekh,Harsh; Misra,Rabindra Nath; Wani,Minal; Mukhopadhyaya,Pratap N.
BACKGROUND: Human Immunodeficiency Virus Type 1 (HIV-1) viral load testing at regular intervals is an integral component of disease management in Acquired Immunodeficiency Syndrome (AIDS) patients. The need in countries like India is therefore an assay that is not only economical but efficient and highly specific for HIV-1 sub type C virus. This study reports a SYBR Green-based HIV-1 real time PCR assay for viral load testing and is designed for enhanced specificity towards HIV-1 sub type C viruses prevalent in India. RESULTS: Linear regression of the observed and reference concentration of standards used in this study generated a correlation coefficient of 0.998 (p&amp;#8201;&lt;&amp;#8201;0.001). Lower limit of detection of the test protocol was 50...
Tipo: Journal article
Palavras-chave: HIV-1; Gag; SYBR Green; RT PCR.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100022

A Role for Australia: Contributions and Benefit
Provedor de dados: 31
Autores: Butler,   R.J.; Biddle,   R.R.; Murray,   James Gardner.
This paper summarises Australia’s contributions to the global animal disease control effort, from the perspective of the Department of Agriculture, Fisheries and Forestry – Australia (AFFA). AFFA’s objectives in the context of animal health and welfare, and veterinary public health, include minimising the impact of pests, diseases and contaminants, managing emergencies, facilitating the development of national policies and strategies, and advancing Australia’s trade interests. A result of such objectives has been the establishment of a strong international program within AFFA. The program has the advantages of collaboration with other countries on animal health matters, including that of aquatic animals, as well as progressing Australia’s trading...
Tipo: Presentation
Palavras-chave: Livestock Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/124022

A room temperature procedure for the manual determination of urea in seawater
Provedor de dados: 27
Autores: Goeyens, L.; Kindermans, N.; Yusuf, M.A.; Elskens, M.
Several earlier studies underpin the important role of dissolved organic matter and more particularly urea in phytoplanktonic nitrogen uptake fluxes. Generally, the determination of urea concentrations relies on the formation of an imidazolone-thiosemicarbizide complex, a complexation which requires very accurate temperature control when carried out at high temperature. It is also possible, however, to obtain reliable results with a room temperature procedure. The measured abundances for both complexation at high temperature (85 degree C, 20 min) and at ambient temperature (22 degree C, 72 h) are closely comparable. Lower values are observed for temperatures &lt;10 degree C though. Moreover, a comparison of both techniques reveals similar precision...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dissolved organic carbon; Sea water; Temperature; Urea; Water analysis.
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7858

A row cropping system with cover crops for balancing weed and soil fertility management in organic cereal production
Provedor de dados: 21
Autores: Phan, Hong TT; Thorup-Kristensen, Kristian.
This manuscript shows the result from testing the new row cropping system for its ability to produce a balanced combination of inter-row hoeing and undersown cover crop in order to obtain a sufficient N supply and an effective weed control as well as to identify optimal sowing time for high biomass production and cover crop species suited for late undersowing. The new system produced a sufficient N supply and an acceptable weed control effect, leading to an improvement in the subsequent crop yield. Yield in this system is potentially improved further because some managements are suggested to increase its weed control effect, especially for the perennial creeping thistle cirsium arvense.
Tipo: Journal paper
Palavras-chave: Nutrient turnover; Research communication and quality; Biodiversity and ecosystem services; Farm nutrient management; Europe.
Ano: 2019
URL: http://orgprints.org/35191/1/Manuscript-rowcrop%20system.pdf

A RT-PCR assay for the detection of encephalomycarditis virus infections in pigs
Provedor de dados: 58
Autores: Pérez,Lester J.; Díaz de Arce,Heidy.
Encephalomyocarditis virus (EMCV) infections can cause losses in pig farms all over the world. Rapid, sensitive and unequivocal detection of this virus is therefore essential for the diagnosis and control of the disease. An RT-PCR assay was developed, optimized and evaluated for encephalomyocarditis virus detection in organ based on a pair of primers that amplifies a 165 bp DNA fragment from a highly conserved nucleotide region of the viral 3D glycoprotein. PCR products of the expected size were obtained from Cuban EMCV 744/03 strain. Non-specific reactions were not observed when other porcine RNA genome viruses and uninfected cells were used. The analytical sensitivity of the test was estimated to be 2 TCID50/50 mL. The analysis of tissue homogenate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Encephalomyocarditis virus; RT-PCR assay; Pig.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000400034

A Rule of Thumb for Controlling Invasive Weeds: An Application to Hawkweed in Australia
Provedor de dados: 31
Autores: Kompas,   Tom; Chu,   Long.
We use a bang-bang optimal control model to derive a rule of thumb for an optimal management of invasive weeds, in terms of the marginal benefits and costs of various control actions. Instead of determining the size of infestation under an optimal surveillance measure, the rule specifies the types of land where an invasive weed should be first prevented from establishment, and under what conditions control should be initiated. The types of land are modeled via the heterogeneous vulnerability of land to the weed and likely infestation. This easy-to-use rule is applied to determine how hawkweed should be controlled in Australia, across three potential control strategies: containment, eradication and no action. We investigate this rule-of-thumb in both...
Tipo: Journal Article
Palavras-chave: Stochastic optimal control; Biosecurity; Invasive weed management; Hawkweed; Crop Production/Industries.
Ano: 2010
URL: http://purl.umn.edu/95046

A safe method to control the anthracnose in papaya
Provedor de dados: 94
Autores: Ferreira,Eskálath Morganna Silva; Malta,Camilla Martins; Bicalho,Jordana Oliveira; Pimenta,Raphael Sanzio.
Abstract  This study aimed to propose a safe methodology for the control anthracnose caused by the fungus Colletotrichum gloeosporioides in the papaya ( Carica papayaL.). In addition, yeast present in epiphytic microbiota associated with this fruit were isolated and selected as biocontrol agents, its use in classical and integrated biological control protocols with GRAS substances. For selection as biocontrol agents, the obtained isolates were tested for their ability to: produce antagonistic substances against C. gloeosporioides, not grow at 37ºC and subsequently tested for their potential control. Considering the total of 85 isolated yeasts, only UFT 5852 was selected in the above mentioned tests and due to this it was used in biological control tests in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epiphytic yeasts; Anthracocystis grodzinskae; Colletotrichum gloeosporioides; GRAS substances; Biological control.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000300403

A Safety Valve for Emissions Trading
Provedor de dados: 31
Autores: Stranlund,   John K.
This paper considers the optimal design of an emissions trading program that includes a safety valve tax that allows pollution sources to escape the emissions cap imposed by the aggregate supply of emissions permits. I demonstrate that an optimal hybrid emissions trading/emissions tax policy involves a permit supply that is strictly less than under a pure emissions trading scheme and a safety valve tax that exceeds the optimal pure emissions tax as long as expected marginal damage is an increasing function. While the expected level of emissions under a hybrid policy may be more or less than under pure emissions trading or a pure emissions tax, under the assumption that uncertainty about aggregate marginal abatement costs is symmetric the most likely...
Tipo: Working or Discussion Paper
Palavras-chave: Emissions Taxes; Emissions Trading; Uncertainty; Safety Valve; Hybrid Emissions Control; Environmental Economics and Policy; Public Economics; Risk and Uncertainty; L51; Q28.
Ano: 2009
URL: http://purl.umn.edu/53125

A sampling plan and spatial distribution for site-specific control of Sphenophorus levis in sugarcane
Provedor de dados: 1
Autores: Pavlu, Franz Arthur; Molin, José Paulo.
Sphenophorus levis has become a major pest of sugarcane plantations in Brazil, causing significant losses in productivity. Few studies have been conducted on the spatial distribution of this pest in the field, which is essential for the development of sampling plans. We aimed to characterize the spatial distribution of S. levis in sugarcane, defining a reliable, practical and feasible sampling plan, as well as generating application maps for production areas, allowing for comparison of the consumption of inputs in a conventional system with site-specific application. The study was conducted in areas around Piracicaba, Brazil. First, we conducted sampling to evaluate the best sampling density to characterize the spatial dependence. The results showed that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.03.01.00-4 eostatistics; Site-specific application; Precision agriculture; Entomology; Soil pests; Sugarcane weevil Máquinas e Implementos Agrícolas.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/28599

A sauva e seu controle.
Provedor de dados: 14
Autores: MOREIRA, M. A. B.
Tipo: Folhetos
Palavras-chave: Controle; Sauba ant; Leaf cutting ant; Control; Saúva.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687517

A SCHEDULING-BASED ALGORITHM FOR LOW ENERGY CONSUMPTION IN SMART AGRICULTURE PRECISION MONITORING SYSTEM
Provedor de dados: 111
Autores: Ajao, Lukman Adewale.
The worldwide connectivity design of embedded wireless sensor-based Internet of Things (IoT) using 6LoWPAN platform has significantly increases in industry. However, the development of smart technology in agriculture precision for remote control, monitoring and sensing usually encounter some challenges in the IoT architecture, these include: high power consumption, interoperability, security, and end-to-end communication. In this paper, the authors developed a smart agriculture precision monitoring system using scheduling-based algorithm techniques to accomplished low energy consumption during the system operations. The IEEE 802.11 b/g/n technology (ESP 8266) was used as IoT gateway, ATmega 2560 development chip, with other wireless sensor nodes (such as...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5929

A search for RFLP markers to identify genes for aluminum tolerance in maize
Provedor de dados: 54
Autores: Torres,Giovana A.; Parentoni,Sidney N.; Lopes,Maurício A.; Paiva,Edilson.
The objective of this study was to identify restriction fragment length polymorphism (RFLP) markers linked to QTLs that control aluminum (Al) tolerance in maize. The strategy used was bulked segregant analysis (BSA) and the genetic material utilized was an F2 population derived from a cross between the Al-susceptible inbred line L53 and Al-tolerant inbred line L1327. Both lines were developed at the National Maize and Sorghum Research Center - CNPMS/EMBRAPA. The F2 population of 1554 individuals was evaluated in a nutrient solution containing a toxic concentration of Al and relative seminal root length (RSRL) was used as a phenotypic measure of tolerance. The RSRL frequency distribution was continuous, but skewed towards Al-susceptible individuals....
Tipo: Info:eu-repo/semantics/article
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551997000300017

A sensorimotor area (NIf) is required for the production of learned vocalizations
Provedor de dados: 17
Autores: Sharon M. H. Gobes; Bence P. &amp;#xd6;lveczky.
Sensory feedback is essential for the acquisition of complex motor behaviors, including birdsong. In zebra finches, auditory feedback is relayed to the descending motor pathway primarily through the nucleus interfacialis nidopalii (NIf). NIf projects to HVC - a premotor region essential for song, which projects to RA, a motor cortex analogue brain area that drives muscle activity required for vocalizations. NIf is also essential for &amp;#x2018;sleep replay&amp;#x2019;, a recapitulation of song-related neural dynamics in the motor pathway during sleep. Despite being one of the major inputs to the song control pathway, there is no known role for NIf in the production of zebra finch song. To address this, we reversibly inactivated NIf using TTX or Muscimol...
Tipo: Poster
Palavras-chave: Neuroscience.
Ano: 2011
URL: http://precedings.nature.com/documents/5856/version/1

A set of ontologies to drive tools for the control of vector-borne diseases
Provedor de dados: 17
Autores: Pantelis Topalis; Emmanuel Dialynas; Elvira Mitraka; Elena Deliyanni; Inga Siden-Kiamos; Christos Louis.
We are developing a set of ontologies that deal with vector-borne diseases and the arthropod vectors that transmit them. For practical reasons (application priorities), we initiated this project with an ontology of insecticide resistance followed by a series of ontologies that describe malaria as well as physiological processes of mosquitoes that are relevant to, and involved in, disease transmission. These will be expanded to encompass other vector-borne diseases as well as non-mosquito vectors. The aim of the whole undertaking, which is worked out in the frame of the international IDO (Infectious Disease Ontology) project, is to provide the community with a set of ontological tools that can be used both in the development of specific databases and, most...
Tipo: Manuscript
Palavras-chave: Bioinformatics.
Ano: 2009
URL: http://precedings.nature.com/documents/3464/version/1

A simple approach to integrate the ecotoxicological and chemical data for the establishment of environmental risk levels
Provedor de dados: 52
Autores: Cesar,Augusto; Abessa,Denis Moledo de Souza; Pereira,Camilo Dias Seabra; Santos,Aldo Ramos; Fernández,Nuria; Choueri,Rodrigo Brasil; DelValls,Tomas Angel.
In this work, multivariate and numeric methods were used to integrate the chemical and ecotoxicological data obtained for the sediments from the Santos Estuarine System, and for the vicinity of the discharges of the Submarine Sewage Outfall of Santos, in order to establish more accurately the environmental risks, identify the priority areas and thus provide guidance to control the programs and public policies. For both the datasets, the concentrations which exceeded numeric sediment guidelines tended to be associated to toxicity. For the estuary, this trend was corroborated by the correlations between the toxicity and Cu and PAHs levels, whereas for the sewage outfall region, this was observed through the correlation between the toxicity and Hg contents....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sediment; Contamination; Toxicity; Tiburonella viscana; Environmental risk assessment.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100028

A Simple Kit of Plate-Trapped Antigen Enzyme-Linked Immunosorbent Assay for Identification of Plant Viruses
Provedor de dados: 124
Autores: Nascimento,Aline Kelly Queiróz; Lima,José Albersio Araújo; Barbosa,Graziela da Silva.
ABSTRACT Many methods can be used for arriving in a correct virus disease diagnose, and the serological techniques are the most used methods for plant virus identification. The indirect enzyme-linked immunosorbent assay (Indirect-ELISA) or plate-trapped antigen ELISA (PTA-ELISA) has been useful for detection of viruses in a wide range of situations, especially to test a large number of samples in a relatively short period of time. Immune-biological Companies have developed practical kits for direct ELISA or double antibody sandwich (DAS-ELISA), but neither Company has developed kits for PTA-ELISA. As a single universal antibody-conjugate is used for detection of a wide range of plant viruses, the PTA-ELISA technique is more economical, practical and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant Virus Diagnose; ELISA; Comovirus; Cucumovirus; Potyvirus; Sobemovirus.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000100216

A simple method for the quantification of diclofenac potassium in oral suspension by high-performance liquid chromatography with UV-detection
Provedor de dados: 60
Autores: Rubim,Alexandre Machado; Rubenick,Jaqueline Bandeira; Laporta,Luciane Varine; Rolim,Clarice Madalena Bueno.
A rapid, simple and low cost method was developed to determine diclofenac potassium (DP) in oral suspension, using a reverse-phase column (C8, 150 mm x 4.6 mm, 5 µm), mobile phase containing methanol/buffer phosphate (70:30 v/v, pH 2.5), at a flow rate of 1.0 mL/min, isocratic method, and ultraviolet detection at 275 nm. A linear response (r = 1.0000) was observed in the range of 10.0-50.0 µg/mL. Validation parameters such as linearity, specificity, precision, accuracy and robustness were evaluated. The method presented precision (repeatability: relative standard deviation = 1.21% and intermediate precision: between-analyst = 0.85%). The specificity of the assay was evaluated by exposure of diclofenac potassium under conditions of stress such as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: High performance liquid chromatography; Diclofenac potassium; Oral suspension.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502013000300021

A simple model for the break-up of marine aggregates by turbulent shear
Provedor de dados: 5
Autores: Ruiz, Jean-eric; Izquierdo, A.
A simple model for the break-up, by turbulent shear, of marine aggregates is proposed. Three factors are considered to control the rupture of aggregates of different sizes. First, turbulence exerts stronger shear forces on bigger aggregates. Second, big aggregates are weaker than small ones because their porosity increases. Third, the rate of rupture of an aggregate is considered to be dependent on the point in the aggregate where the rupture takes place. This third factor allows the determination of the size distribution resulting from aggregate break-up. By considering these factors the model predicts the break-up rates of aggregates of different sizes and the aggregates' size-distribution resulting from this break-up. Therefore, the model represents an...
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00093/20417/18084.pdf

A simple procedure for the purification of active fractions in aqueous extracts of plants with allelopathic properties
Provedor de dados: 39
Autores: Borghetti,Fabian; Lima,Elisa Coutinho de; Silva,Lucas de Carvalho Ramos.
Most studies conducted to test the allelopathic activity of plant parts have made use of water as solvent. However, the presence of polar, water-soluble substances, such as proteins and carbohydrates, tends to hamper the purification of active compounds. In this study, we present a simple purification procedure that separates the active fraction of the extract from the undesirable substances, thus facilitating the search for active molecules through standard chromatographic methods. Aqueous leaf extracts of three Cerrado species (Caryocar brasiliense, Qualea parviflora and Eugenia dysenterica) were prepared at 5% concentration (w/v) and stored at 4ºC (crude extracts). After 24 h, these solutions were filtered and freeze-dried. The powder obtained was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Cerrado; Freeze-drying; Leaf extract; Purification.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100007

A simple test for quality evaluation of cultured fry of marine fish
Provedor de dados: 27
Autores: Dhert, P.; Lavens, P.; Sorgeloos, P.
A stress test is proposed for the evaluation of the physiological condition of fish larvae in nutritional studies. The test was used in a study of quantitative (n-3) highly unsaturated fatty acids (HUFA) requirements in larval &lt;i&gt;Lates calcarifer&lt;/i&gt; and &lt;i&gt;Siganus guttatus&lt;/i&gt;. It enabled to suggest fast intervention at reduced larval quality and allowed to prevent mass mortalities. The stress test offered valuable information for the quantification study of fatty acid requirements in marine fish larvae. In &lt;i&gt;Lates&lt;/i&gt; demands for fatty acids were detected in metamorphosis. In &lt;i&gt;Siganus&lt;/i&gt; on the other hand, the sensitivity of the larvae was considerably reduced after short (n-3) HUFA boosting of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Fry; Quality control; Tests.
Ano: 1992
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2761

A simulation program for the timing of fungicides to control Sooty Blotch in organic apple growing. First results in 2003
Provedor de dados: 21
Autores: Trapman, Marc.
A simulation program for infections by Sooty Blotch was developed based on  literature data and expert judgements. The value of the model as tool for timing  fungicide sprays to control Sooty Blotch was tested in 2003 in two randomized plot  trials, and four “on farm” trials where the treatments where made by the growers.  Disease pressure was relative low due to the warm and dry summer of 2003. Two to  five post infection treatments with lime sulfur or coconut soap aimed at severe  infection periods as indicated by the model provides 72 to 100 % control.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004
URL: http://orgprints.org/14068/1/11_Trapman_56_66.pdf

A single resistance exercise session improves myocardial contractility in spontaneously hypertensive rats
Provedor de dados: 56
Autores: Fernandes,A.A.; Faria,T. de O.; Ribeiro Júnior,R.F.; Costa,G.P.; Marchezini,B.; Silveira,E.A.; Angeli,J.K.; Stefanon,I.; Vassallo,D.V.; Lizardo,J.H.
Resistance training evokes myocardial adaptation; however, the effects of a single resistance exercise session on cardiac performance are poorly understood or investigated. This study aimed to investigate the effects of a single resistance exercise session on the myocardial contractility of spontaneously hypertensive rats (SHRs). Male 3-month-old SHRs were divided into two groups: control (Ct) and exercise (Ex). Control animals were submitted to sham exercise. Blood pressure was measured in conscious rats before the exercise session to confirm the presence of arterial hypertension. Ten minutes after the exercise session, the animals were anesthetized and killed, and the hearts were removed. Cardiac contractility was evaluated in the whole heart by the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cardiac; Contractility; Myocardium; Proteins; Resistance exercise.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000900813

A snapshot of Western Balkan’s agriculture from the perspective of EU accession
Provedor de dados: 31
Autores: Mizik,   Tamas.
The Western Balkan countries can be characterised by their shared goal, which is rapid accession to the EU. Agriculture is an important element to achieving this goal. The role of agriculture differs widely among the analysed countries but is more important than the average of the EU. This study gives a comprehensive overview of the most important agricultural indicators. These indicators give a precise picture of the sector’s relevance, production structure, efficiency and international relations. After demonstrating changes in input use, production structure, prices and agricultural policies, the next section identifies some of its reasons. The analysis concentrates on the newest available data. Serbia is the leading producer and the only net exporter of...
Tipo: Article
Palavras-chave: Western Balkans; State of agriculture; Trade balance; Production structure; Agribusiness; Agricultural and Food Policy; Crop Production/Industries; Farm Management; International Relations/Trade; Land Economics/Use; Livestock Production/Industries.
Ano: 2012
URL: http://purl.umn.edu/122450

A SNP in 5′ untranslated region of CD40 gene is associated with an increased risk of ischemic stroke in a Chinese population: a case-control study
Provedor de dados: 74
Autores: Huang,Hua-Tuo; Guo,Jing; Xiang,Yang; Chen,Jian-Ming; Luo,Hong-Cheng; Meng,Lan-Qing; Wei,Ye-Sheng.
Abstract Cluster of differentiation 40 (CD40), the receptor for CD154, is a member of the tumor necrosis factor (TNF) receptor superfamily. Several studies have been conducted to investigate the effect of the CD40 rs1883832 polymorphism on atherosclerotic disease in different population; however, inconsistent results were obtained. In this study, we investigated the association of four polymorphisms (rs1883832, rs13040307, rs752118 and rs3765459) of CD40 gene and their effect on CD40 expression with the risk of ischemic stroke (IS) in a Chinese population. Three hundred and eighty patients with IS and 450 control subjects were included in the study. The CD40 polymorphisms were discriminated by Snapshot SNP genotyping assay. Serum soluble CD40 (sCD40)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CD40; Gene; Polymorphism; Ischemic stroke.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000300442

A soft technology to improve survival and reproductive performance of Litopenaeus stylirostris by counterbalancing physiological disturbances associated with handling stress
Provedor de dados: 5
Autores: Wabete, Nelly; Chim, Liet; Pham, Dominique; Lemaire, Pierrette; Massabuau, J.
The consequences of handling stress (fishing, transfer, eyestalk ablation) on shrimp broodstock are poorly documented. The weakness of farmed shrimp, Litopenaeus stylirostris, during winter is a major problem in New Caledonia, because of seasonal climate (tropical-sub-temperate). The transfer of broodstock in winter from earthen outdoor ponds to indoor maturation tanks in the hatchery (T=20 degrees C, Salinity=35 parts per thousand, fed shrimp) usually leads, after 48 h, to high mortality (up to 70%). Eyestalk ablation to induce ovarian maturation in females leads to further mortality.   Starting from a background analysis of physiological disturbances (initial osmoregulatory imbalance) associated with handling stress (Wabete, N., Chim, L., Lernaire, P.,...
Tipo: Text
Palavras-chave: Eyestalk ablation; Spawning; Handling stress; Broodstock; Litopenaeus stylirostris; Shrimp.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1880.pdf

A SPATIAL MODEL OF ANIMAL DISEASE CONTROL IN LIVESTOCK: EMPIRICAL ANALYSIS OF FOOT AND MOUTH DISEASE IN THE SOUTHERN CONE
Provedor de dados: 31
Autores: Rich,   Karl M.; Winter-Nelson,   Alex.
This paper presents a multi-market model of animal disease control that extends the current literature by accounting for spatial and inter-temporal relations in both epidemiological and economic variables. The model is applied to Foot and Mouth Disease control in Argentina, Uruguay and Paraguay, but it is broadly generalizable.
Tipo: Conference Paper or Presentation
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2004
URL: http://purl.umn.edu/20015

A spatially explicit ecosystem model of seston depletion in dense mussel culture
Provedor de dados: 5
Autores: Grant, J; Bacher, Cedric; Cranford, P; Guyondet, T; Carreau, M.
A fully-coupled biological-physical-chemical model of a coastal ecosystem was constructed to examine the impact of suspended mussel culture on phytoplankton biomass in Tracadie Bay, Prince Edward Island, Canada. Due to the extent of mussel culture there, we hypothesised that shellfish filtration would control the concentration and distribution of phytoplankton and other suspended particles in the bay. Circulation was delineated with a tidally-driven 2D numerical model and used to drive an ecosystem model with a focus on pelagic components including phytoplankton production, nutrients, detritus, and mussels. The benthos were treated as a sink. Nutrients and seston were forced by tidal exchange and river input, with phytoplankton additionally forced by...
Tipo: Text
Palavras-chave: Towed sensors; Nutrient dynamics; Circulation model; Phytoplankton; Carrying capacity; Shellfish aquaculture; Estuaries; Ecosystem model.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-6951.pdf

A spreadsheet for calculation of ingredients for standardization of requeijão cremoso
Provedor de dados: 45
Autores: Silva,R.C.S.N.; Minim,V.P.R.; Silva,A.N.; Carvalho,A.F.; Minim,L.A.
The standardization of requeijão cheese quality characteristics is a processing stage which is directly influenced by the chemical composition of the raw material. Fat and water concentrations are the main factors that cause variation in quality properties of the requeijão and, when not thoroughly controlled, may cause a lack in standardization of the food. Calculations of ingredients for effective standardization must be made in relation to the final product through of iterative calculations, which makes the manual process unfeasible. Thus, the objective of the present study was to develop a spreadsheet for ingredient calculation, with restrictions being the different concentrations of fat and water in order to standardize the final products. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quality control; Calculation of ingredients; Excel; Solver function.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000200038

A standard experimental diet for the study of fatty acid requirements of weaning and first ongrowing stages of European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt; L.): selection of the basal diet
Provedor de dados: 27
Autores: Coutteau, P.; Van Stappen, G.; Sorgeloos, P.
A standard experimental diet was developed to study lipid nutrition in marine fish larvae during weaning and first ongrowing. Basal diets were prepared by extrusion-cooking, crumbling of the pellets, and sieving to obtain particles in the size ranges 150-300 µm and 300-500 µm. Three protein sources in the extruded basal diet were evaluated: (1) micronized cod protein granulate (COD); (2) a mixture of casein, gelatin, and albumin (CGA); (3) a mixture of cod fish meal, whey protein, soybean protein concentrate, albumin, hemoglobin meal, and wheat gluten (MIX). A variable lipid fraction was added to the extruded nucleus by coating the particles with an emulsion, coconut oil (COCO), or fish oil emulsion (FO), in a fluidized bed granulator. European sea bass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass].
Ano: 1995
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2541

A Stochastic Analysis of the Impact of Volatile World Agricultural Prices on European and UK Agriculture
Provedor de dados: 31
Autores: Moss,   Joan E.; Binfield,   Julian C.R.; Zhang,   Lichun; Patton,   Myles; Kim,   In Seck.
Successive Common Agricultural Policy (CAP) reforms and trade liberalisation have led to a more market-orientated European agricultural sector, with EU commodity prices now more closely linked to world prices. As a consequence EU prices have become more volatile. Greater price volatility increases uncertainty and raises fresh challenges for projections of policy impacts in the EU. To take account of world price volatility stochastic modelling has been applied to the FAPRI-EU partial equilibrium model, which includes a UK modelling system. Stochastic modelling provides a means to capture some of the inherent uncertainty associated with agricultural production systems. By varying assumptions about certain exogenous variables, stochastic models can be used to...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural policy; Stochastic modelling; Agricultural and Food Policy.
Ano: 2011
URL: http://purl.umn.edu/108771

A STOCHASTIC PROGRAMMING ANALYSIS OF THE FARM LEVEL IMPLICATIONS OF SOIL EROSION CONTROL
Provedor de dados: 31
Autores: Segarra,   Eduardo; Kramer,   Randall A.; Taylor,   Daniel B.
This paper analyzes the effects of uncertain soil loss in farm planning models. A disaggregated approach was used because of an interest in examining the impact of probabilistic soil loss constraints on farm level decision-making. A stochastic programming model was used to consider different levels of probability of soil loss. Traditional methods of analysis are shown to consistently overestimate net returns.
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1985
URL: http://purl.umn.edu/29971

A structural perspective on the mechanisms of quorum sensing activation in bacteria
Provedor de dados: 42
Autores: LIXA,CAROLINA; MUJO,AMANDA; ANOBOM,CRISTIANE D.; PINHEIRO,ANDERSON S.
Bacteria are able to synchronize the population behavior in order to regulate gene expression through a cell-to-cell communication mechanism called quorum sensing. This phenomenon involves the production, detection and the response to extracellular signaling molecules named autoinducers, which directly or indirectly regulate gene expression in a cell density-dependent manner. Quorum sensing may control a wide range of biological processes in bacteria, such as bioluminescence, virulence factor production, biofilm formation and antibiotic resistance. The autoinducers are recognized by specific receptors that can either be membrane-bound histidine kinase receptors, which work by activating cognate cytoplasmic response regulators, or cytoplasmic receptors...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autoinducer; Bacteria; Quorum sensing; Receptor; Structure.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502189

A study of a shock-absorber for a front-end loader modified for agricultural purposes with an electrohydraulic directional valve
Provedor de dados: 111
Autores: Kim, Hak-Jin.
A front-end loader for agricultural purposes is the most commonly used implement for agri-tractors in Korea. As it is operated to raise, lower and carry various objects in a farming field, it introduces a large amount of stress to a tractor, causing vibrations and often lead to a mechanical breakdown. These high stresses are observed at the starting and ending points of operation, that is, the points at which the highest acceleration and deceleration occur. To reduce the sudden change of the speed, soft-start &amp; end operation were tested with an electrohydraulic directional valve, which has a built-in ramp time spool control function. This valve was controlled by SAE-J1939 associated messages via CANBUS. This shock-absorbing system contains three ECUs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Front-end loader; Shock absorbing; Electrohydraulic directional valve; J1939; ECU.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3136

A study of geochemistry and hydrodynamics in Hutt Lagoon (Western Australia)
Provedor de dados: 5
Autores: Arakel, A V.
Hutt Lagoon, in the Perth Basin, Western Australia is a shallow (&lt; 11 m) evaporitic basin, developed as a result of ponding in a Pleistocene calcreted dune terrain. Holocene sequence in the lagoon reflects a history of evaporite sedimentation through successive stages ranging from open marine to pond and playa environments. The contemporary lagoon is a playa surface in which sedimentation is related to distribution and interaction of hydrologic units (groundwaters, seawaters and lagoonal brines). Precipitation is restricted to ephemeral halite in ponded waters, and diagentic emplacement of CaCO sub(3) and CaSO sub(4) minerals in lagoonal sediments. Playa surfaces, predominantly below sea-level, fundamentally control the lagoonal circulation system;...
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00246/35717/34226.pdf

A study of iga antibody response to different mycobacterium tuberculosis antigens in the diagnosis and monitoring of pulmonary tuberculosis
Provedor de dados: 55
Autores: Bezerra,Janaina Miranda; Beck,Sandra Trevisan; Kanunfre,Kelly Aparecida; Leite,Olavo Munhoz; Ferreira,Antônio Walter.
We evaluated the performance of the ELISA technique in the detection of IgA antibodies against different Mycobacterium tuberculosis antigenic preparations in serum samples from 49 patients with pulmonary tuberculosis collected before and after the start of specific treatment. The controls consisted of serum samples from healthy patients without any prior contact with the bacteria and serum samples from patients with other pneumopathies. Glycolipid antigen gave the best diagnostic performance, with a sensitivity of 88% and specificities varying from 88 to 100% in the control groups. These antigens constitute a powerful tool for the diagnosis and monitoring of patients with pulmonary tuberculosis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuberculosis; IgA; Serological diagnosis; ELISA; Glycolipid antigen.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000100012

A STUDY OF SUBCLINICAL MASTITIS IN TWO HERDS, ONE MANAGED ORGANICALLY, THE OTHER CONVENTIONALLY, AND THE EFFECT OF DIFFERENT MANAGEMENT STRATEGIES
Provedor de dados: 21
Autores: Thatcher, A.; Petrovski, K.; Shadbolt, N.; Martin, N.
Mastitis in two herds managed as a comparison between organic and conventional dairy farming systems was monitored for 9 years utilising regular bacterial culture of milk samples, individual and bulk somatic cell counts and observation by farm staff. The most important isolates in pure cultures were coagulase-negative staphylococci, Staphylococcus aureus, Streptococcus uberis, and Bacillus spp. Positive cultures were generally not associated with subclinical mastitis. The objective was to develop strategies for the control of mastitis in organic cows without the use of antibiotics. Within a set of key control measures, two management strategies were trialled, one of which reduced the prevalence of subclinical mastitis to very low levels.
Tipo: Conference paper, poster, etc.
Palavras-chave: Dairy cattle; Health and welfare.
Ano: 2014
URL: http://orgprints.org/23568/1/23568_MM.pdf

A study of the phytotoxic effects of the aerial parts of Senecio westermanii Dusén (Asteraceae) on Lactuca sativa L. and Allium cepa L. seeds
Provedor de dados: 60
Autores: Merino,Francis José Zortéa; Ribas,Daniele Felipe; Silva,Cristiane Bezerra da; Duarte,Ana Flávia Schvabe; Paula,Cristiane da Silva; Oliveira,Maislian de; Dias,Josiane de Fátima Gaspari; Miguel,Marilis Dallarmi; Miguel,Obdulio Gomes.
The objective of this study was to evaluate the effects of the ethanolic crude extracts and fractions of the species Senecio westermanii Dusén on Lactuca sativa L. (lettuce) and Allium cepa L. (onion) seeds. We assessed the germination, growth, root respiration and photosynthesis of the target species in Petri dishes (9.0 cm diameter) containing filter paper n°6. The study was conducted using 50 seeds per plate and held in 4 replicates per concentration of each sample. In the germination there was an inhibitory effect of fractions hexane (FH) and chloroform (FCl) at concentrations of 500 and 1000 µg/mL. There was a reduction in the radicle growth of lettuce by 14 to 24% and a reduction of hypocotilum by 14 to 28%. As for the radicle of the onion was up 74%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Senecio westermanii/extract/effects; Lactuca sativa; Allium cepa; Allelochemicals; Allelopathy.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000300606

A study on &amp;#946;-defensin-2 and histatin-5 as a diagnostic marker of early childhood caries progression
Provedor de dados: 48
Autores: Jurczak,Anna; Ko&amp;#347;cielniak,Dorota; Papie&amp;#380;,Monika; Vyhouskaya,Palina; Krzy&amp;#347;ciak,Wirginia.
BACKGROUND: Recently, a continuous growth of interest has been observed in antimicrobial peptides (AMPs) in the light of an alarming increase in resistance of bacteria and fungi against antibiotics. AMPs are used as biomarkers in diagnosis and monitoring of oral cavity pathologies. Therefore, the determination of specific protein profiles in children diagnosed with early childhood caries (ECC) might be a basis for effective screening tests and specialized examinations which may enable progression of disease METHODS: The objective of the studies was to determine the role of histatin-5 and &amp;#946;-defensing-2 as a diagnostic marker of early childhood caries progression. In this work, results of concentration determination of two salivary proteins...
Tipo: Journal article
Palavras-chave: &amp;#946; -defensin-2 Histatin-5 Early childhood caries.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100061

A Study on Technical Efficiency of Wheat Cultivation in Haryana
Provedor de dados: 31
Autores: Singh,   Surender.
The farm-specific technical efficiency of wheat cultivation in Haryana at the aggregate and disaggregate levels has been studied using stochastic frontier approach. A high degree of technical inefficiency in wheat farming has been reported, which is due to factors under farm’s control. It has been argued that wheat-cultivating farms in the state can increase their production by 27 per cent without increasing the quantity of inputs, i.e. just by way of realizing efficiency. The estimates of technical efficiency have indicated that small-size farms are more efficient than medium- and large-size farms, negating thereby the myth that large-size farming is more profit/business-oriented.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/47430

A STUDY ON THE EFFICIENCY OF LOW COST VERMICOMPOSTING STRUCTURE
Provedor de dados: 21
Autores: Sarma, Pallab; Saikia, Pinki; Baruah, Tapan.
The present study was conducted at the Dryland Technology Park ,All India Coordinated Research Project for Dryland Agriculture, Biswanath Chariali Center, Biswanath College of Agriculture, Assam Agricultural University, Biswanath Chariali, District sonitpur Assam, India during 2012 -2013 with the objective to find out the efficiency of the low cost vermicomposting unit as compared to conventional units involving higher cost of construction. The experiment was laid out in a randomized block design (RBD) with 4 treatments i.e  T1: Vermicomposting with Perionyx excavates in concrete pits (Control) with dimension 2.5 m(L) X 0.91 m (B) X 0.91 m(D),T2: Vermicomposting with Perionyx excavates in low cost vermicomposting unit with dimension of 2.5 m(L) X 0.91 m...
Tipo: Conference paper, poster, etc.
Palavras-chave: Soil biology; Technology assessment; Biodiversity and ecosystem services; Farm nutrient management.
Ano: 2014
URL: http://orgprints.org/23720/1/23720_MM.pdf

A Study on the Origin of Peroxisomes: Possibility of Actinobacteria Symbiosis
Provedor de dados: 17
Autores: Duhita Narendra; Saruhashi Satoshi; Hamada Kazuo; Miyata Daisuke; Horiike Tokumasa; Shinozawa Takao.
The origin of peroxisomes as having developed from the endoplasmic reticulum (ER) was proposed on the basis of the similarity between some peroxisomal proteins and ER proteins, and the localization of some peroxisomal proteins on the ER. To study the evolutionary distance between peroxisomes and ER and Prokaryotes, we carried out a phylogenetic analysis of CDC48 (cell division control 48) and its homologs, including ER-localized CDC48, CDC48 homologs in Prokaryotes and peroxisome-localized PEX1 and PEX6. A similarity search analysis of peroxisomal protein sequences to prokaryotic protein sequences using BLAST at several thresholds (E-values) was also done. We propose Actinobacteria symbiosis for the origin of peroxisomes based on the following evidence:...
Tipo: Manuscript
Palavras-chave: Genetics &amp; Genomics; Evolutionary Biology.
Ano: 2008
URL: http://precedings.nature.com/documents/1866/version/1

A suppository-base-matrix tablet for time-dependent colon-specific delivery system
Provedor de dados: 60
Autores: Zou,Meijuan; Wang,Caixia; Zhang,Xuezhu; Xu,Tao; Han,Jiarong; Zhang,Xiao; Cheng,Gang.
Our research has focused on the main design features and release performances of time-dependent colon-specific (TDCS) delivery tablets, which relies on the relative constancy that is observed in the small intestinal transit time of dosage forms. But inflammatory bowel disease（IBD&amp;#65289;can affect the transit time, and usually results in watery stool. Compared to the TDCS and wax-matrix TDCS tablet, a promising time-dependent colon-specific delivery system was investigated. In our study, a suppository-base-matrix coated tablet was evaluated. Water soluble suppository-base helps the expansion of tablet, facilitates uniform film dissolution and achives high osmotic pressure. Combining the expansion of carboxymethyl starch sodium (CMS-Na) and the moisture...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inflammatory bowel disease; Lonicera japonica Thunb/extract; Suppository/colon-specific delivery system; Drugs/colon-specific delivery system; Tablets/colon-specific delivery system.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502014000300535

A survey of natural parasitism of mirid bugs by parasitoids on apples and pears in Norway
Provedor de dados: 21
Autores: Jaastad, G.; Trandem, N.; Hovland, B.; Djønne, R. T.
Mirid bugs are important pests in both integrated and organic fruit production. In a survey  in 2006 the proportion of mirids parasitized by parasitoids was investigated in 18  Norwegian orchards. More than 50 beating samples were collected from apple and pear  orchards under integrated and organic management in different areas of Norway. About  30% of nymphs of the most abundant mirid bug species, Lygocoris pabulinus, Ortholylus  marginalis and Psallus ambiguus, were parasitized. Important factors for enhancing  biological control in organic fruit production are discussed.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2008
URL: http://orgprints.org/13675/1/186%2D190.pdf

A Sustained Immune Response Supports Long-Term Antiviral Immune Priming in the Pacific Oyster,  Crassostrea gigas
Provedor de dados: 5
Autores: Lafont, Maxime; Vergnes, Agnes; Vidal-dupiol, Jeremie; De Lorgeril, Julien; Gueguen, Yannick; Haffner, Philippe; Petton, Bruno; Chaparro, Cristian; Barrachina, Celia; Destoumieux-garzon, Delphine; Mitta, Guillaume; Gourbal, Benjamin; Montagnani, Caroline.
Over the last decade, innate immune priming has been evidenced in many invertebrate phyla. If mechanistic models have been proposed, molecular studies aiming to substantiate these models have remained scarce. We reveal here the transcriptional signature associated with immune priming in the oyster Crassostrea gigas. Oysters were fully protected against Ostreid herpesvirus 1 (OsHV-1), a major oyster pathogen, after priming with poly(I·C), which mimics viral double-stranded RNA. Global analysis through RNA sequencing of oyster and viral genes after immune priming and viral infection revealed that poly(I·C) induces a strong antiviral response that impairs OsHV-1 replication. Protection is based on a sustained upregulation of immune genes, notably genes...
Tipo: Text
Palavras-chave: Innate immunity; Priming; OsHV-1; Antiviral response; Immune memory; Oyster; POMS; Poly(I·C); Interferon; Transcriptomic.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00614/72580/71541.pdf

A SUSTENTABILIDADE DAS RESERVAS EXTRATIVISTAS PELA PERSPECTIVA DA ECONOMIA ECOLÓGICA
Provedor de dados: 31
Autores: Cavalcanti,   Francisco Carlos Da Silveira; Maciel,   Raimundo Claudio Gomes; Mangabeira,   Joao Alfredo De Carvalho; Reydon,   Bastiaan Philip.
As Reservas Extrativistas (RESEX) são áreas de domínio público, com uso concedido às populações extrativistas tradicionais, cuja subsistência baseia-se no extrativismo e na agricultura de subsistência e na criação de animais de pequeno porte, e têm como objetivos básicos proteger os meios de vida e a cultura dessas populações, e assegurar o uso sustentável dos recursos naturais da unidade. Porém, o aumento da área para agropecuária dentro das reservas vem aumentando e, assim, o desmatamento. O presente estudo tem como objetivo promover uma reflexão sobre a regulamentação ambiental e suas conseqüências, bem como sobre a organização popular como instrumento capaz de deter o desmatamento na Amazônia. Neste sentido, as RESEX, resultado da luta política e...
Tipo: Conference Paper or Presentation
Palavras-chave: Sustentabilidade; Reservas Extrativistas; Economia Ecológica; Amazônia; Regulamentação ambiental; Sustainability; Extractivist Reserves; Ecological Economics; Amazon; Environmental regulation; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/113395

A SYSTEMATIC REVIEW ON THE INFLUENCE OF HLA-B POLYMORPHISMS ON HIV-1 MOTHER-TO-CHILD-TRANSMISSION
Provedor de dados: 55
Autores: Angulo,Juan Manuel Cubillos; Cuesta,Taryn Ariadna Castro; Menezes,Eliane Pereira; Pedroso,Celia; Brites,Carlos.
ABSTRACT  Background: Mother-to-child-transmission (MTCT) is the main route of HIV-1 infection in children. Genetic studies suggest HLA-B alleles play an important role on HIV-1 transmission, progression, and control of HIV-1 infection.  Objective: To evaluate which polymorphisms of HLA-B are involved in HIV-1 MTCT.  Methods: Two independent reviewers performed a systematic review on search engines PubMed, Europe PMC, Cochrane, Scientific Electronic Library Online (SciELO), and Literatura Latino-americana e do Caribe em Ciências da Saúde (Lilacs), using the following key terms: "HIV infection", "HIV newborn", "HLA polymorphisms", "HLA-B", and "Mother to child transmission". All studies focusing on evaluation of HIV-1 MTCT, HIV infection evolution, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: "Mother to child transmission"; "HIV"; "HLA-B".
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000100053

A system-level neural model of the     brain mechanisms underlying     instrumental devaluation in rats
Provedor de dados: 17
Autores: Francesco Mannella; Marco Mirolli; Gianluca Baldassarre.
Goal-directed behaviours are defined by the presence of two kinds of effect on instrumental learning. First, degrading the contingencies between produced actions and desired outcomes diminishes the number of instrumental responses; second, devaluing a reward results in a lower production of instrumental actions to obtain it. We present a computational model of the neural processes underlying instrumental devaluation in rats. The model reproduces the interaction between the basolateral complex of the amygdala (BLA) and the limbic, associative and somatosensory striato-cortical loops. Firing-rate units are used to abstract the activity features of neural populations. Learning is reproduced through the use of dopamine-dependent simple and differential hebbian...
Tipo: Poster
Palavras-chave: Neuroscience.
Ano: 2011
URL: http://precedings.nature.com/documents/5849/version/1

A SYSTEMS APPROACH TO PEST CONTROL RESEARCH
Provedor de dados: 31
Autores: Jenkins,   Robert P.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1971
URL: http://purl.umn.edu/30495

A systems approach to the management of arbuscular mycorrhiza: Bioassay and study of the impact of phosphorus supply
Provedor de dados: 21
Autores: Kahiluoto, Helena.
The aim of this study was to find out whether utilization of arbuscular mycorrhiza (AM), in crop production in Nordic conditions, can be promoted through management of the cropping system. P fertilization was chosen as the pilot system to manage because it has a major effect on AM and because it is problematic from the viewpoint of sustainability. Our scant knowledge of AM functioning and its effects in the field is mainly due to the methodological problems of research. Therefore, a bioassay of AM effectiviness was developed. In addition, the work demonstrated the challenge of a systems approach to research on low organizational levels of the agroecosystem. The starting point was the goal of sustainable phosphorus management in the food system, focused...
Tipo: Thesis
Palavras-chave: Production systems.
Ano: 2000
URL: http://orgprints.org/4059/1/4059.pdf

A szőlő rügyfakadási idejének becslése
Provedor de dados: 31
Autores: Hlaszny,   Edit; Ladanyi,   Marta.
Aszőlő rügyfakadási időpontjának modellezése és előrejelzése növényvédelmi és gazdasági szempontból nélkülözhetetlen lépés a szőlőtermelésben. Tanulmányunkat öt fehérborszőlő-fajta (Chardonnay, Rajnai rizling, Hárslevelű, Pinot blanc és Szürkebarát), valamint ezek klónfajtáinak 2000 és 2004 között felvételezett adataival végeztük. Az ültetvények a Duna borrégión belül, a Kunsági borvidékhez tartozó Helvécián találhatóak. Számításainkhoz egy olyan matematikai modellt állítottunk fel, mely kis hibával megbecsüli a várható rügyfakadás napját. Amodell az általánosan használt kumulált hőösszegszámításon alapul, az optimalizálást pedig a becsült időpontok napokban számított hibájára végeztük. Az optimális bázishőmérsékletet 6 °C-ban állapítottuk meg. Amodell...
Tipo: Journal Article
Palavras-chave: Rügyfakadás; Tenyészidő effektív hőösszege; Vitis vinifera L.; Opening of buds; Effective accumulated temperatureover the growing season; Vitis vinifera L.; Crop Production/Industries; Research Methods/ Statistical Methods; Risk and Uncertainty.
Ano: 2010
URL: http://purl.umn.edu/99196

A Tale of Two Countries: Emissions Scenarios for China and India
Provedor de dados: 31
Autores: Massetti,   Emanuele.
The aim of the paper is to present evidence that China and India are, and will remain, two very different actors in international negotiations to control global warming. We base our conclusions on historical data and on scenarios until 2050. The Business-as-Usual scenario (BaU) is compared to four Emissions Tax scenarios to draw insights on major transformations in energy use and in energy supply and to assess the possible contribution of China and India to a future international climate architecture. We study whether or not the Copenhagen intensity targets require more action than the BaU scenario and we assess whether the emissions reductions induced by the four tax scenarios are compatible with the G8 and MEF pledge to reduce global emissions by 50% in...
Tipo: Working or Discussion Paper
Palavras-chave: Climate Change; China; India; Energy Efficiency; Energy and Development; Environmental Economics and Policy; Q32; Q43; Q54; Q43; O53; P52.
Ano: 2011
URL: http://purl.umn.edu/101378

A tápanyagpótlás és gyomirtás értékelése a helyspecifikus növénytermelési technológiában
Provedor de dados: 31
Autores: Lencses,   Eniko.
A Szent István Egyetem Józsefmajori tangazdaságának relatív jó talajadottságokkal rendelkező tábláiban a precíziós tápanyagpótlás alkalmazásával akár hektáronként 60 kg nitrogénhatóanyag-megtakarítás is elvárható a konvencionális technológiához képest. A precíziós tápanyagpótlási technológiával, a vizsgált táblák 50%-ánál tapasztalható anyagköltség-megtakarítás. Az anyagmegtakarítás mellett célszerű számolni a működési költségek növekedésével. A Szegedi Gabonakutató Kft. segítségével végzett szántóföldi kísérletek adatai alapján megállapítható, hogy kukoricatermelésnél 48,85% őszi gyomborítottság felett ökonómiailag indokolt a precíziós gyomirtás.   -----------------------------------   By applying precision nutrient supplementation rather instead of...
Tipo: Journal Article
Palavras-chave: Precíziós gazdálkodás (növényvédelem; Tápanyagpótlás); Jövedelem; Árváltozás; Precision farming (plant protection; Nutrient supplementation); Income; Price change; Crop Production/Industries; Farm Management; Production Economics.
Ano: 2009
URL: http://purl.umn.edu/92532

A taxonomy survey of decision support systems in agriculture
Provedor de dados: 31
Autores: Manos,   Basil D.; Ciani,   Adriano; Bournaris,   Thomas; Vassiliadou,   I.; Papathanasiou,   J.
This paper presents the results of a research concerning the type, category and fields of applications of Decision Support Systems (DSS) and their contribution to decision-making in agriculture, mainly in the fields of planning and management of farms, farm regions and agricultural resources. More specifically, the paper includes a taxonomy survey that has been based on an analysis of all published works on applications of DSS from 1987 to 2001, as well as a categorized presentation of these applications. The relevant classification of DSS is made by treating subject (theoretical DSS or applicative), the source of publication (proceedings, scientific journal or dissertation), the type of DSS (Decision Support System, Expert System or Knowledge Based DSS),...
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 2004
URL: http://purl.umn.edu/26406

A Theory of Dynamic Biofuel Tax Credit
Provedor de dados: 31
Autores: Ye,   Fanglin; Lu,   Liang; Du,   Xiaoxue.
In this paper, we set up a social cost minimization problem for a government. Using dynamic optimization tools, we analytically shows how exogenous parameters could affect the optimal social cost and the optimal tax credit policy path.
Tipo: Presentation
Palavras-chave: Optimal Control; Biofuel; Tax Credit; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q42; Q48.
Ano: 2012
URL: http://purl.umn.edu/123750

A Theory of Natural Addiction
Provedor de dados: 31
Autores: Smith,   Trenton G.; Tasnadi,   Attila.
Economic theories of rational addiction aim to describe consumer behavior in the presence of habit-forming goods. We provide a biological foundation for this body of work by formally specifying conditions under which it is optimal to form a habit. We demonstrate the empirical validity of our thesis with an in-depth review and synthesis of the biomedical literature concerning the action of opiates in the mammalian brain and their effects on behavior. Our results lend credence to many of the unconventional behavioral assumptions employed by theories of rational addiction, including adjacent complementarity and the importance of cues, attention, and self-control in determining the behavior of addicts. Our approach suggests, however, that addiction is...
Tipo: Conference Paper or Presentation
Palavras-chave: Consumer/Household Economics.
Ano: 2005
URL: http://purl.umn.edu/19195

A Three-Year Study on the Effect of Trellis Type on Yield, Fruit Size, and Economics of Blackberry Production in Georgia
Provedor de dados: 31
Autores: Krewer,   Gerard; Fonsah,   Esendugue Greg; Boyhan,   George.
Tissue-culture propagated "Chicksaw" blackberry plants were set four feet apart in April of 2000 as part of a five-year trellising trial near Reidsville, Georgia. There were five treatments: an untrellised control, posts with plastic baling string on both sides, posts and three vertical wires, "raspberry" V trellis, and Limited Arm-Rotation Shift-Trellis (eliminated in 2003). There were four replications with twenty feet for each treatment per replication, for a total of 80 feet per treatment. Primocanes were tipped at 3.5 to four feet and re-tipped several times during the summer when new growth exceeded about 12 inches. Mature plant height at the end of the growing season was about five feet. Starting in the third growing season, yield data was collected...
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/8561

A tool for deterministic and probabilistic sensitivity analysis of epidemiologic studies
Provedor de dados: 31
Autores: Orsini,   Nicola; Bellocco,   Rino; Bottai,   Matteo; Wolk,   Alicja; Greenland,   Sander.
Classification errors, selection bias, and uncontrolled confounders are likely to be present in most epidemiologic studies, but the uncertainty introduced by these types of biases is seldom quantified. The authors present a simple yet easy-to-use Stata command to adjust the relative risk for exposure misclassification, selection bias, and an unmeasured confounder. This command implements both deterministic and probabilistic sensitivity analysis. It allows the user to specify a variety of probability distributions for the bias parameters, which are used to simulate distributions for the bias-adjusted exposure–disease relative risk. We illustrate the command by applying it to a case–control study of occupational resin exposure and lung-cancer deaths. By...
Tipo: Article
Palavras-chave: Episens; Episensi; Sensitivity analysis; Unmeasured confounder; Misclassification; Bias; Epidemiology; Research Methods/ Statistical Methods.
Ano: 2008
URL: http://purl.umn.edu/120927

A traça-do-tomateiro (Tuta absoluta) em Rondônia: ocorrência, danos e indicações de controle.
Provedor de dados: 14
Autores: TEIXEIRA, C. A. D.; UTUMI, M. M.
Este trabalho tem como objetivo evidenciar as características da traça do tomateiro e indicar ações de manejo que assegurem a viabilidade da produção de tomate no Estado de Rondônia.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Traça do tomateiro; Tomato leaf miner; Rondônia; Amazônia Ocidental; Western Amazon.; Tomate; Lycopersicon Esculentum; Praga de Planta; Tuta Absoluta; Inseto; Controle Biológico; Controle Químico.; Plant pests; Biological control; Tomatoes; Solanum lycopersicum var. lycopersicum; Chemical control.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/704082

A typology of fisheries management tools
Provedor de dados: 5
Autores: Boncoeur, Jean; Guyader, Olivier; Thebaud, Olivier.
This paper provides a classification of fisheries management measures which is based on a typology developped by Boncoeur and Troadec (2003). This typology was discussed as part of the TECTAC research project, and amended to provide the following conceptual framework. Fisheries management tools may be classified according to their purpose, to the regulation method on which they rely, and to the control variable(s) which they use. The typology presented in this paper relies on these three criteria
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00243/35400/33920.pdf

A uniform, quality controlled Surface Ocean CO2 Atlas (SOCAT)
Provedor de dados: 5
Autores: Pfeil, B.; Olsen, A.; Bakker, D. C. E.; Hankin, S.; Koyuk, H.; Kozyr, A.; Malczyk, J.; Manke, A.; Metzl, N.; Sabine, C. L.; Akl, J.; Alin, S. R.; Bates, N.; Bellerby, R. G. J.; Borges, A.; Boutin, J.; Brown, P. J.; Cai, W. -j.; Chavez, F. P.; Chen, A.; Cosca, C.; Fassbender, A. J.; Feely, R. A.; Gonzalez-davila, M.; Goyet, C.; Hales, B.; Hardman-mountford, N.; Heinze, C.; Hood, M.; Hoppema, M.; Hunt, C. W.; Hydes, D.; Ishii, M.; Johannessen, T.; Jones, S. D.; Key, R. M.; Koertzinger, A.; Landschuetzer, P.; Lauvset, S. K.; Lefevre, N.; Lenton, A.; Lourantou, A.; Merlivat, L.; Midorikawa, T.; Mintrop, L.; Miyazaki, C.; Murata, A.; Nakadate, A.; Nakano, Y.; Nakaoka, S.; Nojiri, Y.; Omar, A. M.; Padin, X. A.; Park, G. -h.; Paterson, K.; Perez, Fiz F; Pierrot, D.; Poisson, A.; Rios, A. F.; Santana-casiano, J. M.; Salisbury, J.; Sarma, V. V. S. S.; Schlitzer, R.; Schneider, B.; Schuster, U.; Sieger, R.; Skjelvan, I.; Steinhoff, T.; Suzuki, T.; Takahashi, T.; Tedesco, K.; Telszewski, M.; Thomas, H.; Tilbrook, B.; Tjiputra, J.; Vandemark, D.; Veness, T.; Wanninkhof, R.; Watson, A. J.; Weiss, R.; Wong, C. S.; Yoshikawa-inoue, H.
A well-documented, publicly available, global data set of surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). Many additional CO2 data, not yet made public via the Carbon Dioxide Information Analysis Center (CDIAC), were retrieved from data originators, public websites and other data centres. All data were put in a uniform format following a strict protocol. Quality control was carried out according to clearly...
Tipo: Text
Ano: 2013
URL: https://archimer.ifremer.fr/doc/00383/49450/49923.pdf

A unique avenue to control drug resistant pathogens: Experimental evidences
Provedor de dados: 17
Autores: Sribir Sen.
Drug resistant bacterial pathogens are increasing in the environment due to multiple reasons. If any drug resistant pathogen grows in a host, the host will face death treat because there is no way to resist their growth in the host system. Eventuality is death in almost all cases. Reports on the mechanisms of drug resistance in bacteria are many. However, there is no solution for these cases. The present work is providing an important understanding to fight against drug resistant pathogens and that can be used in gastrointestinal diseases.
Tipo: Manuscript
Palavras-chave: Biotechnology.
Ano: 2010
URL: http://precedings.nature.com/documents/4934/version/1

A unique in vivo experimental approach reveals metabolic adaptation of the probiotic Propionibacterium freudenreichii to the colon environment
Provedor de dados: 5
Autores: Saraoui, Taous; Parayre, Sandrine; Guernec, Gregory; Loux, Valentin; Montfort, Jerome; Le Cam, Aurelie; Boudry, Gaelle; Jan, G; Falentin, Helene.
Background  Propionibacterium freudenreichii is a food grade bacterium consumed both in cheeses and in probiotic preparations. Its promising probiotic potential, relying largely on the active release of beneficial metabolites within the gut as well as the expression of key surface proteins involved in immunomodulation, deserves to be explored more deeply. Adaptation to the colon environment is requisite for the active release of propionibacterial beneficial metabolites and constitutes a bottleneck for metabolic activity in vivo. Mechanisms allowing P. freudenreichii to adapt to digestive stresses have been only studied in vitro so far. Our aim was therefore to study P. freudenreichii metabolic adaptation to intra-colonic conditions in situ. Results  We...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00171/28205/26433.pdf

A UTILIZAÇÃO DO CONTROLE DE QUALIDADE DE ACORDO COM O SISTEMA DE ANÁLISE DE PERIGOS E PONTOS CRÍTICOS DE CONTROLE (APPCC) NA INDÚSTRIA PESQUEIRA BRASILEIRA: O CASO DA NETUNO PESCADOS NO ESTADO DE PERNAMBUCO
Provedor de dados: 31
Autores: Carlini Junior,   Reginaldo Jose; Barreto,   Claudemir Farias; Lisboa Filho,   Waldeck.
Consuming market increasingly requires that companies assure higher quality products. These companies in turn are in search of solutions to meet such requirements, and thus consolidate their image and credibility with consumers. Such initiatives lead to gains and make these companies more competitive so as to figure prominently in the markets they operate. This article aims to understand how Netuno Pescados uses HACCP - HAZARD ANALYSIS AND CRITICAL CONTROL POINT system, in order to assure a high safety level to products delivered to markets it serves. This system is based on the principle that biological, chemical and physical dangers may exist in several points of the industry. However, preventive measures can be taken to control them and remove potential...
Tipo: Journal Article
Palavras-chave: Quality control; Safety level; Fish.
Ano: 2006
URL: http://purl.umn.edu/43823

A UTILIZAÇÃO DO MIMES – MULTI-SCALE INTEGRATED MODEL OF THE EARTH SYTEMS ECOLOGICAL SERVICES COMO FERRAMENTA IMPORTANTE PARA A VALORAÇÃO DE SERVIÇOS ECOSSISTÊMICOS.
Provedor de dados: 31
Autores: Tosto,   Sergio Gomes; Ambrosio,   Luis Alberto; Romeiro,   Ademar Ribeiro; Fasiaben,   Maria Do Carmo Ramos; Andrade,   Daniel Caixeta.
O MIMES – Multi-scale Integrated Model of the Earth Sytems Ecological Services é o primeiro modelo global a relacionar a dinâmica entre a tecnologia, produção e bem-estar econômico e os bens e serviços ecossistêmicos do sistema dinâmico da Terra, de forma espacializada.  É um “meta-modelo” que representa uma síntese de uma simplificação dos diversos modelos globais dinâmicos existentes nas ciências naturais e sociais em um nível intermediário de complexidade.  O objetivo do MIMES é simular o sistema integrado da Terra e avaliar a dinâmica e os valores dos serviços dos ecossistemas. O presente estudo de caso é a modelagem da dinâmica do uso e cobertura das terras na Bacia-Hidrográfica dos Rio Mogi-Guaçú e Pardo em São Paulo. Ele foca a restauração dos...
Tipo: Conference Paper or Presentation
Palavras-chave: Modelo de mudanças do uso das terras; Valoração dos serviços ecossistêmicos; Controle da erosão de solos; Modelo dinâmico integrado multi-escala; Land use change model; Ecosystem services valuation; Soil erosion control; Multi-scale integrated dynamic modeling; Environmental Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/109196

A válság hatása a magyar élelmiszer-gazdasági külkereskedelemre nemzetközi összehasonlításban
Provedor de dados: 31
Autores: Hartmut,   Wagner.
Magyarország élelmiszer-gazdasági külkereskedelme az árciklus, és ezen belül elsősorban az árrobbanás nyertesei közé sorolható. Lényegesen javult az egyenleg a válság előtti időszakhoz képest, a gabona és olajos növények exportja a növekvő piaci áraknak köszönhetően ugrásszerűen emelkedett a 2007-2008. években. A többi ágazat képe alapján azonban már inkább a vesztesek körébe került Magyarország, elsősorban a húspiacon (kivéve a baromfiszektort), a tej és tejtermékek, valamint a gyümölcs- és zöldségtermelés csökkenő nemzetközi versenyképessége miatt.  Ha a főbb versenytársak élelmiszer-gazdasági külkereskedelmének alakulásával hasonlítjuk össze hazánkét, még vegyesebb a kép. Hollandia például nem a növekvő nyersanyagáraknak köszönhetően ért el jelentős...
Tipo: Journal Article
Palavras-chave: Válság; Árciklus; Árrobbanás; Élelmiszerek; Külkereskedelem; Crisis; Price cycle; Price explosion; Foodstuffs; Foreign trade; Agribusiness; Agricultural and Food Policy; International Relations/Trade.
Ano: 2010
URL: http://purl.umn.edu/99072

A VARIABLE PRICE SUPPORT FARM PROGRAM: A TRANSITION TOOL TO A FREE MARKET
Provedor de dados: 31
Autores: Huang,   Wen-Yuan; Hyberg,   Bengt; Segarra,   Eduardo.
This paper analyzes a variable price support program (VPS) as an alternative to the current farm income support program. The VPS program can control U.S. agricultural production while protecting income of small farmers. The VPS is designed to alter farm level production decisions by reducing commodity support prices for each additional unit of production produced. This will serve to discourage excess aggregate production. The VPS program can be a mechanism to stabilize income of efficient small farms during the transition from the current farm programs to a free market environment. An illustrative study is used to target government program benefits to various farm-size groups.
Tipo: Journal Article
Palavras-chave: Agricultural Finance.
Ano: 1990
URL: http://purl.umn.edu/29902

A vector carrying the GFP gene (Green fluorescent protein) as a yeast marker for fermentation processes
Provedor de dados: 63
Autores: Gomes,Luiz Humberto; Duarte,Keila Maria Roncato; Andrino,Felipe Gabriel; Giacomelli,Ana Maria Brancalion; Tavares,Flavio Cesar Almeida.
Contaminant yeasts spoil pure culture fermentations and cause great losses in quality and product yields. They can be detected by a variety of methods although none being so efficient for early detection of contaminant yeast cells that appear at low frequency. Pure cultures bearing genetic markers can ease the direct identification of cells and colonies among contaminants. Fast and easy detection are desired and morphological markers would even help the direct visualization of marked pure cultures among contaminants. The GFP gene for green fluorescent protein of Aquorea victoria, proved to be a very efficient marker to visualize transformed cells in mixed populations and tissues. To test this marker in the study of contaminated yeast fermentations, the GFP...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharomyces cerevisiae; GFP (green fluorescent protein); Fermentative processes.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162000000400018

A verminose dos caprinos.
Provedor de dados: 14
Autores: CHARLES, T. N. P.
O que causam as verminoses, como controlar a verminose, cuidados com a aplicação dos remédios contra vermes, vantagens do controle da verminose.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Verme; Controle; Goat; Helminth; Control; Caprine.; Caprino; Doença; Helminto; Verminose.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131758

A weight loss protocol and owners participation in the treatment of canine obesity
Provedor de dados: 65
Autores: Carciofi,Aulus Cavalieri; Gonçalves,Karina Nogueira Venturelli; Vasconcellos,Ricardo Souza; Bazolli,Rodrigo Sousa; Brunetto,Márcio Antonio; Prada,Flávio.
The success of a weight loss program for pets depends on the owners collaboration. Their compliance is fundamental in establishing the correct food management. The objective of this study was to compare the effectiveness of a weight loss program in two groups of dogs, one maintained under experimental conditions and the other with their owners. The same hypocaloric food was used to feed all animals, the amount being restricted to 60% of the estimated maintenance energy requirement for a 15% reduction of the present body weight of the dog. The animals were followed during 90 days. A standard questionnaire was used to study the owners' perception of obesity and its treatment. The protocol and the diet were found to be effective. The control dogs had an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dogs; Obesity; Treatment; Diet.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782005000600016

A wireless sensor network for vineyard management in Sicily (Italy)
Provedor de dados: 111
Autores: Catania, Pietro; Vallone, Mariangela; Lo Re, Giuseppe; Ortolani, Marco.
Wine quality depends on many factors, such as the choice of variety, stock, training system, pruning as well as environmental parameters and cultivation techniques performed in the vineyard.  Monitoring the micro-climate of grapevine allows to conveniently perform the most important cultivation techniques (soil management, pesticide treatments, green pruning, harvest) thus reducing the operating costs of the vineyard, and increasing the overall quality of the grapes.  The aim of the present study is to monitor the micro-climate of grapevine in order to control spring period hazards, to reduce the operating costs of the vineyard and to increase the quality of grapes.  For this purpose a Wireless Sensor Network was used, and a comparison was performed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural mechanization; Management vineyard  temperature  relative humidity  Wireless Sensor Network (WSN).
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2615

A worldwide survey of the reporting of human rabies
Provedor de dados: 195
Autores: Taylor, L. H.
Without accurate reporting of human rabies cases, it is impossible to assess the true burden of the disease on countries, to assess how much resources a government should allocate to rabies control, or to carry out cost-benefit analyses on rabies prevention efforts. The Global Alliance for Rabies Control (GARC) with the Partners for Rabies Prevention is conducting a global survey of human rabies reporting practices. We want to gain a global picture of where human rabies is a notifiable disease and to assess whether the systems in place for the reporting of cases are perceived to be adequate. Networks of rabies experts have been asked to complete a short survey which collected information on whether human rabies was notifiable, which authorities were...
Tipo: Info:eu-repo/semantics/article
Ano: 2013
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3075

A yeast-based model system for cloning secreted and membrane proteins
Provedor de dados: 42
Autores: SURPILI,MARCELO J.; MÜLLER-RÖBER,BERND; WILLMITZER,LOTHAR.
The targeting of proteins to cell organelles and membranes, or of proteins destined to secretion, is coordinated by signal sequences located at the 5´-end of their respective genes. A signal sequence trap system was envisaged in which a truncated version of the yeast acid phosphatase pho5 gene lacking the start codon and signal sequence could serve as a reporter gene. A fraction enriched in 5´-end fragments obtained by PCR from a potato guard-cell cDNA library was cloned in frame to the acid phosphatase gene and the acid phosphatase activity was assayed directly in yeast colonies grown on selective medium. Putative signal sequences targeting the acid phosphatase to the membrane or to the outside of the cell were used to screen the cDNA bank in order to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Signal sequences; Potassium channel; Yeast acid phosphatase; Library screening.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000400005

Abamectin resistance in Tetranychus urticae Koch (Acari: Tetranychidae): selection, cross-resistance and stability of resistance
Provedor de dados: 82
Autores: Sato,Mário E.; Silva,Marcos Z. da; Raga,Adalton; Souza Filho,Miguel F. de.
Studies on artificial laboratory selections with abamectin, cross-resistance relationships, and stability of resistance were carried out with Tetranychus urticae Koch to provide basic information for an abamectin resistance management program. Selections for resistance and susceptibility to abamectin were performed in a population of T. urticae, collected from a commercial strawberry field in the State of São Paulo, Brazil. After five selections for resistance and five selections for susceptibility, susceptible (S) and resistant (R) strains of T. urticae to abamectin were obtained. The resistance ratio (R/S) at the LC50 reached 342-fold values. The toxicity of eight acaricides was evaluated in the R and S strains, observing significant differences (at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Two-spotted spider mite; Resistance management; Chemical control.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000600016

Abatement Cost Uncertainty and Policy Instrument Selection under a Stringent Climate Policy.  A Dynamic Analysis
Provedor de dados: 31
Autores: Bosetti,   Valentina; Golub,   Alexander; Markandya,   Anil; Massetti,   Emanuele; Tavoni,   Massimo.
This paper investigates the relative economic and environmental outcomes of price versus quantity mechanisms to control GHG emissions when abatement costs are uncertain. In particular, we evaluate the impacts on policy costs, CO2 emissions and energy R&amp;D for a stringent mitigation target of 550 ppmv CO2 equivalent (i.e. 450 for CO2 only) concentrations. The analysis is performed in an optimal growth framework via Monte Carlo simulations of the integrated assessment model WITCH (World Induced Technical Change Hybrid). Results indicate that the price instrument stochastically dominates the quantity instrument when a stringent stabilization policy is in place.
Tipo: Conference Paper or Presentation
Palavras-chave: Abatement Costs; Climate Policy; Environmental Economics and Policy; H2; C6; Q5.
Ano: 2008
URL: http://purl.umn.edu/6383

Abattement de l'azote par le marais côtier de Kervigen et potentiel breton
Provedor de dados: 5
Autores: Piriou, Jean-yves; Coic, Daniel; Merceron, Michel.
The coastal marsh of Kervigen is located near by the bay of Douarnenez and its 22 hectares are almost entirely covered by reeds. An experiment was there carried out to assess the nitrogen flux depletion of a small stream, the Kerharo. That one has a 45 km 2 mostly agricultural drainage basin. Due to its nitrate loadings to the next sandy beach, it feeds a green algae (Ulva) proliferation. In order to control its nitrogen fluxes, the stream was partly diverted through a part of the marsh (9 ha), before it was allowed to go back to the main bed. Thus a collapsible weir was set up during several springs and summers, i.e. the growing period of Ulva. The nitrate stripping off the going through flux is within a 30 to 90 % range,that is important (175 kg N03...
Tipo: Text
Palavras-chave: Algae; Nitrogen; Ulva; Nitrate depletion; Costal marsh; Algue; Azote; Ulva; Abattement de nitrate; Marais côtier.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/rapport-64.pdf

ABC transporters in Mycoplasma hyopneumoniae and Mycoplasma synoviae: insights into evolution and pathogenicity
Provedor de dados: 74
Autores: Nicolás,Marisa Fabiana; Barcellos,Fernando Gomes; Nehab Hess,Pablo; Hungria,Mariangela.
ABC transporters represent one of the largest superfamilies of active membrane transport proteins (MTPs) with a highly conserved ATPase domain that binds and hydrolyzes ATP, supplying energy for the uptake of a variety of nutrients and for the extrusion of drugs and metabolic wastes. The complete genomes of a non-pathogenic (J) and pathogenic (7448) strain of Mycoplasma hyopneumoniae, as well as of a pathogenic (53) strain of Mycoplasma synoviae have been recently sequenced. A detailed study revealed a high percentage of CDSs encoding MTPs in M. hyopneumoniae strains J (13.4%), 7448 (13.8%), and in M. synoviae 53 (11.2%), and the ABC systems represented from 85.0 to 88.6% of those CDSs. Uptake systems are mainly involved in cell nutrition and some might be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ABC transporters; Bioinformatics; Genomes of microorganisms; Membrane transport proteins; Mycoplasma; Phylogeny of prokaryotes.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000200006

Ability of Allium cepa L. root tips and Tradescantia pallida var. purpurea in N-nitrosodiethylamine genotoxicity and mutagenicity evaluation
Provedor de dados: 42
Autores: Rainho,Claudia R. de; Kaezer,Andréa; Aiub,Claudia A.F.; Felzenszwalb,Israel.
N-nitroso compounds, such as N-nitrosodiethylamine (NDEA), can be formed by the reaction of secundary amines with nitrosating agents, and are suspected to be involved in tumors in humans. NDEA has been considered a weak carcinogen in genotoxic assays probably due to the inefficient nitrosamine activation system that is used and/or to the efficient repair system. In this work, we evaluated the sensibility of Allium cepa L. root tips and Tradescantia stamen hair mutation assay (Trad-SH) using Tradescantia pallida var. purpurea for NDEA (0.1; 0.5; 5 and 25mM) genotoxicity and mutagenicity induction. Allium cepa L. was treated with different NDEA concentrations for 3h, for 3 consecutive days, including negative control (distilled water) and positive control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Genotoxicity; Mutagenicity; N-nitrosodiethylaine; Tradescantia pallida var. purpurea.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000400015

Ablação ocular no camarão Macrobrachium rosenbergii (De Man) (Crustacea, Decapoda, Palaemonidae): efeitos sobre a reprodução, pigmentação epidérmica e atividade alimentar
Provedor de dados: 104
Autores: Santos,Marcel José Martins dos; Pinheiro,Marcelo Antônio Amaro.
This study analyze the consequences of unilateral and bilateral ablation based on ovigerous percentage, consecutive spawns, and secondary effects of the surgical process in the females of Macrobrachium rosenbergii (De Man, 1879). Two experiments were carried out with four and seven months old females in intermolt stage. Each experiment was comprised of control, unilateral and bilateral ablation. Eyestalk ablation was done with a bistoury with a topic hot cauterization followed by application of antibiotic pomades. The animals were maintained at constant temperature (28 ± 1,05ºC) and photoperiod of 12L: 12D within fibercement boxes with sandy bottom and biological filter. Females were observed once a day during fourteen weeks, registering gonadal condition,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Eyestalk ablation; Reproduction; Pigmentation; Feeding activity; Prawn.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000300012

ABLANDAMIENTO DE FRUTOS DE PITAYA AMARILLA (ACANTHOCEREUS PITAJAYA) A TEMPERATURA AMBIENTE Y EN REFRIGERACIÓN: ACTIVIDAD DE POLIGALACTURONASA, CELULASA Y XILANASA
Provedor de dados: 37
Autores: DUEÑAS GÓMEZ,YENNY MARITZA; NARVÁEZ-CUENCA,CARLOS-EDUARDO; RESTREPO SÁNCHEZ,LUZ PATRICIA.
Una de las mayores causas de pérdidas poscosecha de frutos de pitaya amarilla es su ablandamiento excesivo, el cual ha sido documentado previamente cuando la fruta es almacenada a temperaturas de cosecha o después de refrigeración. Además, tratamientos de choque térmico antes del almacenamiento refrigerado ofrecen control en el ablandamiento de estos frutos. Diferentes experimentos fueron llevados a cabo para evaluar el papel de algunas enzimas degradadoras de pared celular en el ablandamiento de frutos de pitaya amarilla: almacenamiento a 18 °C (TA) y refrigeración con choque térmico previo (ChT-R). Se incluyó también un tratamiento refrigerado control, sin choque térmico (control-R). Si midió el color de la corteza, la firmeza y las actividades de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tratamiento térmico; Daños por frío; Ablandamiento; Pitaya amarilla.
Ano: 2012
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2012000200003

Abnormal nocturnal blood pressure fall in normotensive adolescents with insulin-dependent diabetes is ameliorated following glycemic improvement
Provedor de dados: 56
Autores: Ferreira,S.R.G.; Cesarini,P.R.; Vivolo,M.A.; Zanella,M.T.
Lack of the physiological nocturnal fall in blood pressure (BP) has been found in diabetics and it seems to be related to the presence of diabetic complications. The present study examined the changes in the nocturnal BP pattern of 8 normotensive insulin-dependent diabetic adolescents without nephropathy following improvement in glycemic control induced by an 8-day program of adequate diet and exercise. The same number of age- and sex-matched control subjects were studied. During the first and eighth nights of the program, BP was obtained by ambulatory BP monitoring. After a 10-min rest, 3 BP and heart rate (HR) recordings were taken and the mean values were considered to represent their awake values. The monitor was programmed to cuff insufflation every...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insulin/dependent diabetes mellitus; Blood pressure; Glycemic control.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000400008

Abnormal subcellular distribution of GLUT4 protein in obese and insulin-treated diabetic female dogs
Provedor de dados: 56
Autores: Vargas,A.M.; Barros,R.P.A.; Zampieri,R.A.; Okamoto,M.M.; de Carvalho Papa,P.; Machado,U.F.
The GLUT4 transporter plays a key role in insulin-induced glucose uptake, which is impaired in insulin resistance. The objective of the present study was to investigate the tissue content and the subcellular distribution of GLUT4 protein in 4- to 12-year-old control, obese and insulin-treated diabetic mongrel female dogs (4 animals per group). The parametrial white adipose tissue was sampled and processed to obtain both plasma membrane and microsome subcellular fractions for GLUT4 analysis by Western blotting. There was no significant difference in glycemia and insulinemia between control and obese animals. Diabetic dogs showed hyperglycemia (369.9 ± 89.9 mg/dl). Compared to control, the plasma membrane GLUT4, reported per g tissue, was reduced by 55% (P...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Diabetes; Obesity; Insulin resistance; GLUT4; Adipose tissue; Plasma membrane.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000700020

Abnormalities of glucose metabolism in spontaneously hypertensive rats
Provedor de dados: 56
Autores: Gouveia,L.M.F.B.; Kettelhut,I.C.; Foss,M.C.
Abnormalities in glucose metabolism and insulin action are frequently detected in patients with essential hypertension. Spontaneously hypertensive rats (SHR) have been used as an experimental model to understand this pathological condition. The objective of the present study was to assess glucose metabolism and insulin action in SHR and Wistar rats under fed and fasting conditions. Peripheral glucose utilization was estimated by kinetic studies with [6-³H]-glucose and gluconeogenetic activity was measured during continuous [14C]-bicarbonate infusion. Plasma glucose levels were higher in the SHR group. Plasma insulin levels in the fed state were higher in the SHR group (99.8 ± 6.5 µM) than in the control group (70.4 ± 3.6 µM). Muscle glycogen content was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Peripheral glucose utilization; Gluconeogenesis; Insulin resistance; Spontaneously hypertensive rats.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001100015

Abnormalities of hippocampal signal intensity in patients with familial mesial temporal lobe epilepsy
Provedor de dados: 56
Autores: Coan,A.C.; Kobayashi,E.; Lopes-Cendes,I.; Li,L.M.; Cendes,F.
Mesial temporal lobe epilepsy (MTLE) is associated with hippocampal atrophy and hippocampal signal abnormalities. In our series of familial MTLE (FMTLE), we found a high proportion of hippocampal abnormalities. To quantify signal abnormalities in patients with FMTLE we studied 152 individuals (46 of them asymptomatic) with FMTLE. We used NIH-Image® for volumetry and signal quantification in coronal T1 inversion recovery and T2 for all cross-sections of the hippocampus. Values diverging by 2 or more SD from the control mean were considered abnormal. T2 hippocampal signal abnormalities were found in 52% of all individuals: 54% of affected subjects and 48% of asymptomatic subjects. T1 hippocampal signal changes were found in 34% of all individuals: 42.5% of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hippocampal signal abnormalities; Familial mesial temporal lobe epilepsy; Hippocampal volumetry; Magnetic resonance imaging.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000600007

Abobrinha italiana como método alternativo de controle da broca das cucurbitáceas em ecossistema de várzea no Amazonas.
Provedor de dados: 14
Autores: CARDOSO, M. O.
Em virtude de intenso ataque de brocas nas cucurbitáceas em várzea do rio Amazonas, está sendo testado um método alternativo de controle com a utilização de abobrinha italiana.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cucurbitácea; Brasil; Amazonas; Integrated control.; Abóbora Italiana; Broca; Cucurbitaceae; Controle Integrado; Diaphania Nitidalis; Inseto; Praga.; Diaphania hyalinata; Cucurbita; Insects; Pests.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665074

Abonos orgánicos como insumo de nutrición vegetal en un sistema hidropónico alternativo
Provedor de dados: 32
Autores: Cuervo Osorio, Víctor Daniel.
El presente trabajo se realizó en los invernaderos del Colegio de Postgraduados, estado de México. Se comparó un sistema hidropónico convencional (inorgánico) y otro propuesto como alternativo (orgánico). En este ensayo la planta se ubicó en un sustrato inerte (tezontle) y sobre esté  se colocó un abono orgánico, el cual nutre la planta. Los  3 abonos orgánicos fueron gallinaza, lombricomposta y estiércol bovino dosificados a 3 niveles cada uno (100, 200, 300 kg ha-1 de nitrógeno mineral) utilizando como testigo la solución nutritiva Steiner. Se incluyeron también 3 tratamientos en los cuales se incorporó el nivel 2 de cada uno de los abonos con el sustrato. En total se generaron 13 tratamientos: solución Steiner, gallinaza superficial nivel 1, 2 y 3,...
Palavras-chave: Maestría; Edafología; Capsicum annuum; Nutrición de las plantas; Hidroponía; Abonos orgánicos; Sustratos de cultivo; Fitomejoramiento.
Ano: 2010
URL: http://hdl.handle.net/10521/124

Abonos orgánicos como insumo de nutrición vegetal en un sistema hidropónico alternativo
Provedor de dados: 32
Autores: Cuervo Osorio, Víctor Daniel.
El presente trabajo se realizó en los invernaderos del Colegio de Postgraduados, estado de México. Se comparó un sistema hidropónico convencional (inorgánico) y otro propuesto como alternativo (orgánico). En este ensayo la planta se ubicó en un sustrato inerte (tezontle) y sobre esté  se colocó un abono orgánico, el cual nutre la planta. Los  3 abonos orgánicos fueron gallinaza, lombricomposta y estiércol bovino dosificados a 3 niveles cada uno (100, 200, 300 kg ha-1 de nitrógeno mineral) utilizando como testigo la solución nutritiva Steiner. Se incluyeron también 3 tratamientos en los cuales se incorporó el nivel 2 de cada uno de los abonos con el sustrato. En total se generaron 13 tratamientos: solución Steiner, gallinaza superficial nivel 1, 2 y 3,...
Palavras-chave: Maestría; Edafología; Capsicum annuum; Nutrición de las plantas; Hidroponía; Abonos orgánicos; Sustratos de cultivo; Fitomejoramiento.
Ano: 2010
URL: http://hdl.handle.net/10521/124

ABORTIFACIENT EFFECTS OF Ananas ananassoides BAK. (Ananai) IN RATS
Provedor de dados: 36
Autores: NAKAYAMA,Luiza; SOUZA,José Silva de; OHASHI,Otávio Mitio; VALE,WiIiam G.
The tea made from the infrutescense (corresponding to the edible part plus its cover) of ananai (Ananas ananassoidesBAK.) was administered to pregnant rats, during the period of embryos implantation (5th - 6th day through pregnancy). The animals were slaughtered on the 14th - 15th day through the pregnancy and average rates of implantation and resorption were stimated.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abortifacient; Reproduction control; Ananai; Rats.
Ano: 1993
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671993000100077

About frame estimation of growth functions and robust prediction in bioprocess modeling
Provedor de dados: 5
Autores: Krichen, Emna; Rapaport, A.; Fouilland, Eric.
We address the problem of determining functional framing from experimental data points in view of robust time-varying predictions, which is of crucial importance in bioprocess monitoring. We propose a method that provides guaranteed functional bounds, instead of sets of parameters values for growth functions such as the classical Monod or Haldane functions commonly used in bioprocess modeling. We illustrate the applicability of the method with bioreactor simulations in batch and continuous mode, as well as on real data. We also present two extensions of the method adding flexibility in its application, and discuss its efficiency in providing guaranteed state estimations.
Tipo: Text
Palavras-chave: Functional estimation; Interval observers; Growth functions; Least square.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00609/72149/73205.pdf

About the Efficiency of Input vs. Output Quotas
Provedor de dados: 31
Autores: Merel,   Pierre R.
Output quotas are known to be more efficient than input quotas in transferring surplus from consumers to producers. Input quotas, by distorting the shadow prices of inputs, lead to inefficient production and generate larger deadweight losses, for a given amount of surplus transferred. Yet, input quotas have been a ubiquitous tool in agricultural policy. Practicality considerations, as well as the difficulty to control outputs that heavily depend on stochastic weather conditions, are arguments that help understand why policy makers may favor input quotas over output quotas. In this paper, we offer an additional explanation that rests on efficiency considerations. Assuming that the regulator only has limited knowledge about the market fundamentals (supply...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; H2; L2; Q1.
Ano: 2006
URL: http://purl.umn.edu/25391

About the use of antagonistic bacteria and fungi
Provedor de dados: 21
Autores: Tilcher, R.; Schmidt, C.; Lorenz, D.; Wolf, G. A.
Microorganisms isolated from the phylloplane of vine and cereal plants inhibiting different phytopathogenic fungi were tested as biological control agents against Plasmopara viticola (downy mildew of grapevine). Based on screening in vitro against Phytophthora infestans, P. parasitica, Pythium ultimum, Botrytis cinerea 62 bacterial isolates were selected for tests with Plasmopara viticola.. Antifungal bacterial strains were assayed for antagonistic activity towards the grapevine dieback fungus Eutypa lata in vitro and on grape wood.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2002
URL: http://orgprints.org/14616/1/tilcher_142.pdf

Above- and belowground nitrogen distribution of a red clover-perennial ryegrass sward along a soil nutrient availability gradient established by organic and conventional cropping systems
Provedor de dados: 21
Autores: Hammelehle, Andreas; Oberson, Astrid; Lüscher, Andreas; Mäder, Paul; Mayer, Jochen.
Aims  Belowground legume nitrogen (N) composed of roots and rhizodeposition is an important N input to soils, but published data of belowground N vary broadly, probably due to extrapolation from short-term experiments and dissimilar growing conditions. We quantified belowground N inputs of red clover (Trifolium pratense L.) during two consecutive years in a clover-grass sward along a soil nutrient availability gradient.  Methods  We established a red clover-perennial ryegrass (Lolium perenne L.) model sward in microplots located in field plots of the DOK experiment, which has a 33-year history of organic and conventional cropping, resulting in a soil nutrient availability gradient. Four treatments were examined: the zero fertilisation control, bio-organic...
Tipo: Journal paper
Palavras-chave: Soil quality; Composting and manuring.
Ano: 2018
URL: http://orgprints.org/34924/1/hammelehle-etal-2018-PlantSoil-Vol425-Issue1-2-p507-525.pdf

Aboveground Net Primary Productivity in Grazed and Ungrazed pastures: Grazing Optimisation Hypothesis or Local Extinction of Vegetation Species
Provedor de dados: 17
Autores: Silvanus G. Otieno; Jesse T. Njoka; Truman P. Young; Stephen M. Mureithi; Robinson K. Ngugi.
The controversy that has surrounded herbivory studies in the last few decades prompted our investigation to establish the extent to which herbivore optimisation hypothesis or compensatory growth evidence is real. We used the traditional movable cage method to collect primary productivity data on herbage, functional groups and key individual grass species in various controlled large herbivore treatments in an east African savanna. The herbivore treatments in triplicate blocks included cattle, wild herbivores with and without mega herbivores and combinations of cattle and wild herbivores also with and without mega herbivores. The findings revealed that at herbage level, most grazed treatments (four out of five) had higher productivity than the ungrazed...
Tipo: Manuscript
Palavras-chave: Ecology.
Ano: 2009
URL: http://precedings.nature.com/documents/3452/version/1

ABO式血液型をヒト型にリモデリングしたクローン豚を用いた免疫寛容誘導法の開発
Provedor de dados: 19
Autores: 小川, 晴子; OGAWA, HARUKO.
2009年～2011年科学研究費補助金基盤研究(B)研究成果報告書21380168
Palavras-chave: クローン家畜; 核移植; 移植; 拒絶反応; 免疫寛容; ABO式血液型抗原.
Ano: 2012
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3277

Absence of peripheral blood mononuclear cells priming in hemodialysis patients
Provedor de dados: 56
Autores: Santos,B.C.; Starobinas,N.; Barbuto,J.A.M.; Russo,M.; Schor,N.
As a consequence of the proinflammatory environment occurring in dialytic patients, cytokine overproduction has been implicated in hemodialysis co-morbidity. However, there are discrepancies among the various studies that have analyzed TNF-alpha synthesis and the presence of peripheral blood mononuclear cell (PBMC) priming in this clinical setting. We measured bioactive cytokine by the L929 cell bioassay, and evaluated PBMC TNF-alpha production by 32 hemodialysis patients (HP) and 51 controls. No difference in TNF-alpha secretion was observed between controls and HP (859 ± 141 vs 697 ± 130 U/10(6) cells). Lipopolysaccharide (5 µg/ml) did not induce any further TNF-alpha release, showing no PBMC priming. Paraformaldehyde-fixed HP PBMC were not cytotoxic to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytokine; Stress response; Translational control; Transcriptional blockage; Priming; Membrane-anchored tumor necrosis factor.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000200009

Absence-like seizures in adult rats following pilocarpine-induced status epilepticus early in life
Provedor de dados: 56
Autores: Ferreira,B.L.C.; Valle,A.C.; Cavalheiro,E.A.; Timo-Iaria,C.
Administration of pilocarpine causes epilepsy in rats if status epilepticus (SE) is induced at an early age. To determine in detail the electrophysiological patterns of the epileptogenic activity in these animals, 46 Wistar rats, 7-17 days old, were subjected to SE induced by pilocarpine and electro-oscillograms from the cortex, hippocampus, amygdala, thalamus and hypothalamus, as well as head, rostrum and vibrissa, eye, ear and forelimb movements, were recorded 120 days later. Six control animals of the same age range did not show any signs of epilepsy. In all the rats subjected to SE, iterative spike-wave complexes (8.1 ± 0.5 Hz in frequency, 18.9 ± 9.1 s in duration) were recorded from the frontal cortex during absence fits. However, similar spike-wave...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epilepsy; Absence seizures; Spike-wave; Status epilepticus; Pilocarpine.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001200010

ABSOLUTE CALIBRATION OF THE ERS-2 SCATTEROMETER IN GYRO-LESS MODE USING TRANSPONDERS
Provedor de dados: 72
Autores: Manise,Nicolas; Neyt,Xavier; Acheroy,Marc.
The scatterometer on-board ERS-2, earth-observation satellite developed by the European Space Agency, is an active real aperture radar instrument designed to measure the backscatter coefficient 0 from the earth. Its main utility is to measure physical parameters such as wind speeds and directions over the sea surface. Due to malfunctions of the on-board gyroscopes and even though a new attitude and orbit control system is used, the yaw-orientation of the spacecraft still exhibits random variations from the nominal attitude. This unpredictable attitude requires re-developing the calibration chain of the scatterometer instrument. Distributed targets, such as the rain forest, are used to perform a relative calibration while transponders situated at known...
Tipo: Journal article
Palavras-chave: Scatterometer; Calibration; Transponder.
Ano: 2004
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300011

Absorção de metais pesados do lodo de esgoto pelo feijoeiro (Phaseolus vulgaris L.)
Provedor de dados: 52
Autores: Miyazawa,Mário; Oliveira,Edson L. de; Parra,Mauro S.; Yamashita,Miyuki.
Toxicity and uptake of heavy metals of sewage sludge by beans (Phaseolus vulgaris L.) were evaluated in green house experiments. Treatments consisted of 1,0 ; 2,0 and 5,0% (m/m) of dry sewage sludge, collected from Londrina (Bom Retiro and ETE-Sul) and Curitiba (ETE-Belém and RALF). Bean ( variety IAPAR 57) was sown three times at 0, 120 and 240 days after the treatments have been applied. Contents of Cd, Cr, Co, Cu, Ni, and Pb in bean tissues cultivated with 5,0% (m/m) of all sewage sludge were similar to the control and Ba contents were reduced by increasing the quantity of sewage sludge in the soil. The Zn content in tissue bean incresed from 86 mg kg-1 of control to 462 mg kg-1 by applying 5% (m/m) of sewage sludge in soil, but plant beans did not show...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris L.; Heavy metal; Metal toxicity; Metal fractionation.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000100012

Absorción de antígenos solubles ABH por larvas de Ascaris lumbricoides in vitro
Provedor de dados: 38
Autores: Ponce de León,Patricia; Di Vita,Santiago; Biondi,Claudia; Valverde,Juana.
En investigaciones previas se identificaron antígenos ABH en ejemplares adultos de Ascaris lumbricoides. Los parásitos sólo presentaron epitopes expresados en sus respectivos hospedadores, adquiridos por absorción. Como el parásito adulto vive en el intestino delgado, podría presentarlos debido a que la larva de cuarto estadio conserva los epitopes absorbidos en la migración y los mantiene durante el proceso madurativo a adulto o bien el ejemplar adulto los adquiriría de las secreciones intestinales. El objetivo fue estudiar la absorción de epitopes solubles ABH por larvas mantenidas en cultivo. Las larvas fueron obtenidas de la eclosión de huevos y se recolectaron y cultivaron en medio RPMI. Se adicionó antígeno soluble B en tres tubos que fueron...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Absorción; Antígenos solubles ABH; Ascaris lumbricoides.
Ano: 2011
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572011000100010

Absorción y distribución de nutrientes en clones de cacao y sus efectos en el rendimiento
Provedor de dados: 109
Autores: Puentes-Páramo,Yina Jazbleidi; Menjivar-Flores,Juan Carlos; Gómez-Carabalí,Arnulfo; Aranzazu-Hernández,Fabio.
En el centro experimental de la Federación Nacional de Cacaoteros de Colombia (Fedecacao), localizado en el municipio de Miranda, Cauca (Colombia) se evaluó la capacidad de absorción y distribución de los nutrientes N, P y K en hojas, cáscara y almendra de los clones de cacao (Theobroma cacao L.): CCN-51 y ICS-95 (auto-compatibles) y TSH-565 e ICS-39 (auto-incompatibles), y su influencia en el rendimiento. El diseño experimental fue bloques completos al azar con cinco tratamientos y cuatro repeticiones; los tratamientos consistieron en un control (TR) equivalente a la concentración de nutrientes en el suelo del centro experimental (kg/ha) (49 N, 23.5 P y 146.5 K), e incrementos en esta concentración equivalentes a 25%(T1), 50% (T2), 75% (T3) y 100% (T4)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Theobroma cacao L; Fertilización; Nutrición; NPK; Auto-compatibilidad; Auto-incompatibilidad.
Ano: 2014
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122014000200007

Absorption and mobility of radio-labelled calcium in chili pepper plants and sweet cherry trees
Provedor de dados: 63
Autores: Bonomelli,Claudia; Alcalde,Carolina; Aguilera,Camila; Videla,Ximena; Rojas-Silva,Ximena; Nario,Adriana; Fernandez,Victoria.
ABSTRACT: Calcium (Ca) is often supplied to crop species to prevent the occurrence of Ca–related disorders. Mechanisms of Ca absorption and transport are not fully understood and the effectiveness of root and/or foliar Ca fertilization may be variable. To characterize the rate of Ca absorption and transport, trials were developed with chili pepper and sweet cherry plants, using 45CaCl2 as a tracer. The Ca treatments supplied were: (1) No 45Ca (control); (2) 45Ca soil application; (3) 45Ca supply to basal leaves, and (4) 45Ca application to apical leaves. After two months, plants were harvested for biomass and Ca content determination. The recovery of 45Ca in different plant parts was measured with a liquid scintillation counter and leaf traits were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fertilizers; Fertilizer application methods; Horticultural crops; Plant nutrition; Radioisotopes.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000601403

Absorption Levels and Morphological Features of Fetal Organs in Wistar Rats Treated with Lead Acetate
Provedor de dados: 77
Autores: Bomfim,Kátia Michelle dos Anjos; Garcia,Carlos Alexandre Borges; Reis,Francisco Prado; Palmeira,José Arnaldo Vasconcelos; Scher,Ricardo; de Lucca Júnior,Waldecy; Aragão,José Adeval; Vasconcelos,Francis Lima; Albuquerque Júnior,Ricardo Luiz Cavalcanti; Feitosa,Vera Lúcia Corrêa.
Lead is one of the heavy metals most used in industry. Poisoning due to long-term lead exposure is known as saturnism, and is an occupational illness that has been known for many years. Lead is highly toxic and can compromise the structural and functional patterns of organs and systems. The aim of this study was to examine the lungs and kidneys of fetuses from female Wistar rats exposed to lead acetate. In this study, the lungs and kidneys of 20 fetuses from female rats that had previously been treated with lead acetate were dissected, fixed, embedded in paraffin and stained with hematoxylin and eosin. Macroscopic changes to the shape, color and consistency of organs from fetuses treated with this heavy metal were observed, in comparison with organs from...
Tipo: Journal article
Palavras-chave: Lead acetate; Fetuses; Lung; Kidney.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100021

Absorption of nutrients by cowpea irrigated with saline water under different leaching fractions
Provedor de dados: 91
Autores: Tagliaferre,Cristiano; Guimarães,Diogo U. G.; Gonçalves,Lorena J.; Amorim,Carlos H. F.; Campos,Willian V.; Rocha,Felizardo A.
ABSTRACT Salinity is one of the main environmental problems that negatively affect plant growth and metabolism, besides being one of the factors responsible for the decrease in the yield of crops, especially in arid and semiarid regions. Thus, the aim of this study was to evaluate the effects of soil salinity on the mineral nutrition of irrigated cowpea. The experiment was conducted in drainage lysimeters in a greenhouse, in a completely randomized design with seven treatments, one irrigated with freshwater (control) and six irrigated with saline water with different leaching fractions (5, 10, 15, 20, 30 and 40%) of the applied irrigation depth, with three replicates. The irrigation with saline water treatments did not affect significantly the contents of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salinity; Leaching depths; Irrigation.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001201067

Abstracts...
Provedor de dados: 14
Autores: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 21., 2000, Foz do Iguassu.
Acarology; Agricultural entomology; Biogeography and biodiversity; Chemical and physiological ecology; Computer science applied to entomology; Ecology and population dynamics; Pesticides, resistance and insect-tolerant transgenic crops; Entomophagous insects and biological control; Ethology; Forest entomology; General and applied insect pathology; Genetics and evolutionary biology.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Congresso; Congress.; Agricultura; Entomologia.; Agriculture; Entomology.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/462254

Abundance and diversity of rumen protozoa in lambs fed Gliricidia sepium silage
Provedor de dados: 96
Autores: Martinele,Isabel; Silva,Lucas Feitosa; D'Agosto,Marta; Muniz,Evandro Neves; Sá,José Luiz de; Santos,Gladston Rafael de Arruda.
The objective of this study was to evaluate changes in ruminal protozoa in lambs after partial replacement of feed concentrates in their diets with Gliricidia sepium silage. Twenty-four male Santa Ines lambs with an average initial weight of 14.5 kg were used. The experimental design was completely randomized, with four treatments and six replications. Treatments (given as a percentage of dry matter) were as follows: control - corn silage (600 g kg-1 as fed) + concentrate (400 g kg-1 as fed); GS133 - corn silage (600 g kg-1 as fed) + G. sepium silage (133 g kg-1as fed) + concentrate (267 g kg-1 as fed); GS267 - corn silage (600 g kg-1 as fed) + G. sepium silage (267g kg-1as fed) + concentrate (133 g kg-1 as fed); and GS400 - corn silage (600 g kg-1 as fed)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protein supplementation; Rumen microorganism; Ruminant.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000800436

Abundancia de Mus musculus en granjas avícolas: efectos locales vs. efectos espaciales
Provedor de dados: 67
Autores: León,Vanina; Guidobono,Juan S; Busch,María.
El objetivo de este trabajo fue evaluar el efecto de las variables internas y externas sobre la abundancia de Mus musculus en granjas avícolas. Consideramos como variables "internas" a aquellas características asociadas al estado de mantenimiento de la granja y a su infraestructura, y como "externas" o "espaciales" a aquellas que dependieron de la ubicación de la granja respecto a otras granjas y, por lo tanto, relacionadas a la probabilidad de invasión por roedores. El trabajo se desarrolló en diciembre 2004, enero, septiembre, octubre y diciembre de 2005 en granjas avícolas del Partido de Exaltación de la Cruz (Provincia de Buenos Aires, Argentina). El "estado de la granja" mostró una relación negativa con la abundancia de M. musculus, mientras que las...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plaga; Control; Colonización; Movimientos; Autocorrelación espacial.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2007000200002

Abundancia poblacional y manejo del jabalí (Sus scrofa): una revisión global para abordar su gestión en la Argentina
Provedor de dados: 81
Autores: Sanguinetti,Javier; Pastore,Hernán.
El jabalí (Sus scrofa) es una de las especies invasoras más dañinas y cuyo manejo es prioritario a nivel mundial. Sin embargo, en la Argentina la información demográfica y las experiencias de manejo son casi nulas. En este trabajo se realiza una revisión sobre las densidades y resultados de manejo del jabalí en distintos biomas y ambientes del mundo con el objeto de alertar sobre el potencial demográfico que podría alcanzar el jabalí en cada ecorregión de Argentina y plantear las opciones de manejo más adecuadas y pertinentes en cada caso. Se revisaron 162 publicaciones sobre demografía del jabalí y 30 sobre manejo, tanto en condición nativa como exótica, dentro o fuera de áreas protegidas y en islas o en continente. El valor promedio de densidad del...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioma; Métodos de control; Densidad; Ecorregión; Impactos.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832016000200009

Abwehr von Wühlmausschäden im ökologischen Landbau
Provedor de dados: 21
Inhaltsverzeichnis     Begrüßung  (F. Klingauf)    Wühlmausprobleme unter den Rahmenbedingungen des ökologischen Landbaus (Schwerpunkt Obstbau)  (B. Kopp)    Betriebswirtschaftliche Aspekte der Wühlmausbekämpfung im ökologischen Landbau (Schwerpunkt Milchwirtschaft)  (C. Stutz)    Dispersal as a key issue in the biological control of small mammals  (F. Saucy)    Aussichten der Entwicklung neuer Wirkstoffe zur Wühlmausbekämpfung  (G. Jakob)    Potentielle Bedeutung pflanzlicher Sekundärstoffe zur Abwehr von Wühlmäusen  (M. Wink)    Erfahrungen mit pflanzlichen Repellentstoffen bei der Abwehr von Wühlmäusen (Arvicolidae) im Wald  (M. Müller &amp; T. Heidecke)    Ist Populationsregulation bei Wühlmäusen durch Förderung der natürlichen Feinde, speziell der...
Tipo: Proceedings
Palavras-chave: Crop health; Quality; Protection Buildings and machinery Fruit and berries Farm economics.
Ano: 2002
URL: http://orgprints.org/2391/1/2391%2Dpelz%2Dh%2Dhrsg%2D2002%2Dwuehlmaus%2Dbba%2Dfg%2D6.pdf

Academic populism higher education policies under state control
Provedor de dados: 121
Autores: Albornoz, Orlando.
Tipo: Text
Palavras-chave: VENEZUELA; ESTADO.
Ano: 2005
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=106505&tab=opac&oai:flacso.org.ec:106505

Açaí meal on diet digestibility for commercial laying hens
Provedor de dados: 2
Autores: Rufino, João Paulo Ferreira; Cruz, Frank George Guimarães; Dias, Fábio Jacobs; Brasil, Ronner Joaquim Mendonça; Silva, Ana Rebeca Pires da; Melo, Paloma Leandra Garcia.
This study aimed to evaluate açaí meal in diets for commercial laying hens on apparent nutrient digestibility and apparent metabolizable energy. A total of 72 Hissex White laying hens (52-wks-old) were distributed in a completely randomized design, where treatments consisted of a control diet and an experimental diet (25% açaí meal) with six replicates of six birds each. Data collected were subjected to polynomial regression at 5%. Differences (p &amp;lt; 0.05) were detected in digestibility of all evaluated nutrients. Hens fed diets with 25% açaí meal presented worse (p &amp;lt; 0.05) metabolization and use of energy content. It can be concluded that hens fed diets containing açaí meal presented better use of crude protein, non-fiber carbohydrates and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative food; Nutritional use; Metabolizable energy; Agroindustrial waste. alternative food; Nutritional use; Metabolizable energy; Agroindustrial waste.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46926

Açaí seed bran in the feed of slow-growth broilers
Provedor de dados: 36
Autores: ARRUDA,Janaína de Cássia Braga; FONSECA,Lívia Anália Bentes da; PINTO,Leonardo César Portal; PINHEIRO,Higor César de Oliveira; MONTEIRO,Brenda Thamara Oliveira; MANNO,Maria Cristina; LIMA,Kedson Raul de Souza; LIMA,Ana Rita de.
ABSTRACT The aim of this study was to analyze the potential use of açaí seeds as an alternative ingredient in the feed of slow-growth broilers until 28 days of age. We carried out a bromatological analysis of fractions of the açaí fruit. The açaí seed without mesocarp was the best choice for formulation of the açaí seed bran (ASB), which was evaluated in terms of bird performance and economic viability of the supplemented feed. A total of 416 male chicks of the French Red-Naked Neck lineage were used in a completely randomized design with four treatments (0, 2, 6 and 10% inclusion of ASBin the feed) with eight replicates each. The results indicated that ASB can be included in proportions of up to 10% in the diet of slow growth broilers at early development...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative feed; Chicken; Agroindustrial residue; Sustainability; Euterpe oleraceae.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000400298

Acao de anti-parasitarios no desenvolvimento do besouro Digitonthophagus gazella.
Provedor de dados: 14
Autores: SAUERESSIG, T. M.; OLIVEIRA, E. P. de.
bitstream/CPAC-2009/24377/1/p2003_44.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: PABOV300; Mosca de chifres; Parasita; Bovinae; Farmyard manure.; Bovino; Besouro Coprófago; Controle Biológico; Controle Químico; Fezes; Haematobia Irritans; Sanidade Animal.; Animal health; Biological control; Chemical control; Parasites.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567528

Ação de Inseticidas Botânicos sobre a Preferência Alimentar e sobre Posturas de Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) em Milho
Provedor de dados: 25
Autores: Mazzonetto, Fábio; Coradini, Flávia; Corbani, Renato Zapparoli; Dalri, Alexandre Barcellos.
Resumo. O presente trabalho objetivou comparar o efeito de diferentes extratos de origem vegetal na preferência alimentar e na postura da lagarta do cartucho Spodoptera frugiperda (J.E. Smith) em folhas de milho. Extratos aquosos a 10% p/v de Chenopodium ambrosioides (Linnaeus) (Erva de Santa Maria), Corymbia citriodora (Hill &amp; Johnson) (Eucalipto Cheiroso), Chrysanthemum leucanthemum (Linnaeus) (Crisântemo) e Azadirachta indica (A. Juss) (Nim) foram aplicados em discos de folhas de milho e oferecidos às lagartas em testes com e sem chance de escolha. A atratividade das lagartas pelos discos com os extratos não diferiu da testemunha no teste com chance de escolha, porém os extratos de Nim e Crisântemo apresentaram efeito fagodeterrente a S. frugiperda....
Tipo: Article
Palavras-chave: Extratos Vegetais; Lagarta do Cartucho; Fall Armyworm; Vegetal Extracts.
Ano: 2013
URL: http://hdl.handle.net/2315/265

Ação de Polistes (Aphanilopterus) simillimus Zikán (Hymenoptera, Vespidae) no controle de Spodoptera frugiperda (Smith) (Lepidoptera, Noctuidae)
Provedor de dados: 104
Autores: Prezoto,Fábio; Machado,Vera L.L.
The corn is a plantation attacked by a lot of pests, mainly by Caterpillar Spodoptera frugiperda (Smith), producing serious damages in the plants, occasioning unproductiveness. Thus, the goal of this research was to verify the predation of Polistes simillimus (Zikán, 1951) wasps on this pest of a corn plantation using the wasps colonies as a efficient form of this pest management. The present research was developed in a area in the Piracicaba county, São Paulo (22º43'S, 47º38'W), during the period of november/1995-march/1996, introducing 20 P. simillimus colonies in artificial wood shelters around of 5 plots of com, to accompany the foraging activity of the wasps and the development of the wasps colonies. Spodoptera frugiperda (23,07%) was the main prey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biology control; Corn plantation; Pests and predators.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000300021

Ação de produtos naturais sobre a sobrevivência de Argyrotaenia sphaleropa (Meyrick) (Lepidoptera: Tortricidae) e seletividade de inseticidas utilizados na produção orgância de videira sobre Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae).
Provedor de dados: 14
Autores: MORANDI FILHO, W. J.; BOTTON, M.; GRÜTZMACHER, A. D.; GIOLO, F. P.; MANZONI, C. G.
Nesse trabalho,foi estudado o efeito de formulações comerciais de inseticidas, com ênfase para os produtos permitidos na produção orgânica (nim. piretro natural e extrato pirolenhoso) para o controle de Argyrotaenia sph aleropu (Meyrick) (Lepidoptera: Torlricidae) e sua atuação sobre o parasitóide de ovos Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae), em laboratório. Os inseticidas Natuneem" (l500ppm de Azadirachta indica por litro) e o extrato pirolenhoso (Biopirol 7 M'), nas dosagens de 250 e 500mL 100L". não foram eficientes no controle de A. sphaleropa quando aplicados sobre folhas de videira (Vitis sp.) cultivar "Chardonnay ", enquanto que o piretro natural (250 e 500mL 100[-/) resultou em mortalidade significativa de 77,65 e 85,88%...
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Inseticida natural; Piretro natural; Controle Químico; Inseto; Nim; Parasitismo; Praga; Uva; Viticultura.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/541206

Ação de produtos naturais sobre a sobrevivência de Argyrotaenia sphaleropa (Meyrick) (Lepidoptera: Tortricidae) e seletividade de inseticidas utilizados na produção orgânica de videira sobre Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)
Provedor de dados: 65
Autores: Morandi Filho,Wilson José; Botton,Marcos; Grützmacher,Anderson Dionei; Giolo,Fabrizio Pinheiro; Manzoni,Cristiane Gindri.
Nesse trabalho, foi estudado o efeito de formulações comerciais de inseticidas, com ênfase para os produtos permitidos na produção orgânica (nim, piretro natural e extrato pirolenhoso) para o controle de Argyrotaenia sphaleropa (Meyrick) (Lepidoptera: Tortricidae) e sua atuação sobre o parasitóide de ovos Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae), em laboratório. Os inseticidas Natuneem® (1500ppm de Azadirachta indica por litro) e o extrato pirolenhoso (Biopirol 7 M®), nas dosagens de 250 e 500mL 100L-1, não foram eficientes no controle de A. sphaleropa quando aplicados sobre folhas de videira (Vitis sp.) cultivar "Chardonnay", enquanto que o piretro natural (250 e 500mL 100L-1) resultou em mortalidade significativa de 77,65 e 85,88%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inseticidas orgânicos; Uva; Efeito secundário; Parasitóide de ovos.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782006000400005

Ação do enxofre em chuva ácida simulada sobre parâmetros morfofisiológicos de Phaseolus vulgaris L. (Fabaceae) - doi: 10.4025/actasciagron.v32i3.4273
Provedor de dados: 1
Autores: Dias, Bruna Borba; Universidade Federal de Santa Catarina; Leite, Maysa de Lima; Universidade Estadual de Ponta Grossa, Paraná; Farago, Paulo Vitor; Universidade Estadual de Ponta Grossa, Paraná; Oliveira, André Vicente de; Universidade Estadual de Ponta Grossa, Paraná; Beruski, Gustavo Castilho; Universidade Estadual de Ponta Grossa, Paraná.
O presente trabalho teve o objetivo de analisar os efeitos do enxofre e da chuva ácida simulada sobre a estrutura foliar do feijoeiro (Phaseolus vulgaris L), nos aspectos morfoanatômicos, teores de clorofila a, b,  total e feofitina. As plantas-controle sofreram simulações de chuva com pH 6,0 e as plantas-teste sofreram simulação de chuva ácida com pH 3,0. As concentrações de clorofila a, b e total diminuíram no estádio de floração (R6). Já, no estádio R7, onde surgem as primeiras vagens, os teores aumentaram, indicando possível resistência e/ou adaptação dos espécimes às simulações ácidas. O tratamento ácido afetou a concentração de clorofila que foi degradada por processos oxidativos sem a sua conversão em feofitina. Também se observou diminuição na...
Palavras-chave: 5.00.00.00-4; 5.01.03.06-7; Phaseolus vulgaris; Chuva ácida; Enxofre; Clorofila; Anexos epidérmicos Ciências Agrárias e Fisiologia de Plantas Cultivadas Phaseolus vulgaris; Acid rain; Sulfur; Chlorophyll; Epidermal annexes.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4273

Ação do levamisol sobre infecções por Oesophagostomum dentatum em suínos.
Provedor de dados: 14
Autores: FORMIGA, D. das N.; LIGNON, G. B.; MARQUES, S. M. T.; SOBESTIANSKY, J.; FREITAS, A. R. de.
bitstream/item/59349/1/CUsersPiazzonDocuments12.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Suínos; Parasitos; Controle; Control.; Parasites; Swine.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/434148

Acaricidal activity of Amburana cearensis on the cattle tick Rhipicephalus (Boophilus) microplus
Provedor de dados: 65
Autores: Dantas,Anne Caroline dos Santos; Araujo,Andreina de Carvalho; Pacheco,Alessandra Gomes Marques; Branco,Alexsandro; Sangioni,Luis Antônio; Almeida,Jackson Roberto Guedes da Silva; Horta,Mauricio Claudio.
ABSTRACT: This experiment was carried out to study the bioacaricidal activity of Amburana cearensis against engorged females of Rhipicephalus (Boophilus) microplus. The crude ethanolic extract from the leaves of A. cearensis was submitted to partition with organic solvents (hexane, chloroform and ethyl acetate) in order of increasing polarity; and evaluated using three treatments at concentrations of 5, 10 and 25mg ml-1. To evaluate the acaricidal activity, engorged females were submitted to the adult immersion test. Parameters analyzed were the weight of females; weight of egg mass; percentage of hatch; reproductive efficiency; expected rate of reproduction; and efficacy. For each extract and concentrating fraction, tests were performed in triplicate....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tick; Control; Acaricid; Phytotherapy.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000300536

Acaricidal activity of extracts from different structures of Piper tuberculatum against larvae and adults of Rhipicephalus microplus
Provedor de dados: 36
Autores: BRAGA,Andrina Guimarães Silva; SOUZA,Krishna Ferri Alencar de; BARBIERI,Fabio da Silva; FERNANDES,Cleberson de Freitas; ROCHA,Rodrigo Barros; VIEIRA JUNIOR,José Roberto; LACERDA,Clariana Lins; CELESTINO,Caroline Oliveira; FACUNDO,Valdir Alves; BRITO,Luciana Gatto.
ABSTRACT The strategies to control the cattle tick, Rhipicephalus microplus are based mainly on the use of synthetic pesticides. However, the emergence, establishment, and development of resistance of ticks is rendering the main chemical groups ineffective. Finding new molecules to effectively control infestations by R. microplus is necessary to maintain the productivity of cattle herds, particularly of taurine breeds established in equatorial and tropical regions of the world. Ethanol extracts from the leaves, stems, and fruits of Piper tuberculatum were evaluated in bioassays at concentrations of 50, 25, 12.50, 6.25, 3.12 and 1.56 mg mL-1. The concentrations lethal to 50% of the individuals (LC50) of tick larvae after 24 hours of exposure were 3.62, 3.99...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle tick; Bioassay; Active molecules; Piperaceae.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100057

Acaricidal activity of juazeiro leaf extract against red spider mite in cotton plants
Provedor de dados: 86
Autores: Ferraz,José Cláudio Barros; Matos,Cláudia Helena Cysneiros; Oliveira,Carlos Romero Ferreira de; Sá,Maria das Graças Rosa de; Conceição,Antônia Gilciléia Cunha da.
Abstract: The objective of this work was to evaluate the toxicity, repellency, efficiency, and phytotoxicity of the aqueous extract of juazeiro (Ziziphus joazeiro) leaves in the control of the red spider mite, Tetranychus ludeni, on cotton plant. For toxicity evaluation, T. ludeni adult females were put on cotton leaf discs sprayed with the juazeiro extract. The repellent effect was verified in arenas that contained cotton leaf discs treated or not with the aqueous extract. The control efficiency of the juazeiro extract was evaluated by the infestation of cotton plants by adult female mites, followed by spraying with the extract. Measured LC50 was 3.54% (m/v), with 76.47% mortality and repellent effect. There was control efficiency for 120 hours, with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gossypium hirsutum; Tetranychus ludeni; Ziziphus joazeiro; Mortality; Plant extract; Toxicity.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000700493

Acaricidal activity of leaves of Morus nigra against the cattle tick Rhipicephalus microplus
Provedor de dados: 45
Autores: Dantas,A.C.S.; Freire,D.P.; Souza,G.R.; Almeida,J.R.G.S.; Rolim,L.A.; Castro,R.N.; Horta,M.C.
ABSTRACT The acaricidal activity of crude ethanolic extract and fractions from the leaves of Morus nigra (Moraceae) was carried out on female cattle ticks Rhipicephalus microplus, using the adult immersion test. The mortality and fertility of females exposed to different concentrations of hexane, chloroform and ethyl acetate fractions, as well as ethanolic extract of M. nigra with concentrations of 5, 10 and 25mg/ml were evaluated using three treatment groups, two control groups and triplicate tests. The study also identified the main phenolic compounds of the extract and fractions of this species by HPLC. The chloroform fraction of leaves of M. nigra (25mg/mL) showed the best results for this species, obtaining 62.6% of inhibition of oviposition, 39.3% of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tick control; Acaricide; Plant extract; Mulberry; HPLC.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000300523

Acaricide activity of leaves extracts of Sambucus australis Schltdl. (Caprifoliaceae) at 2% on engorged females of Rhipicephalus (Boophilus) microplus
Provedor de dados: 65
Autores: Krawczak,Felipe da Silva; Buzatti,Andréia; Pivoto,Felipe Lamberti; Sangioni,Luís Antônio; Vogel,Fernanda Silveira Flores; Botton,Sônia de Avila; Zanetti,Gilberto Dolejal; Manfron,Melânia Palermo.
Parasite infections caused by Rhipicephalus (Boophilus) microplus are responsible for the most of economic losses in producing-cattle countries in tropical and subtropical areas. Indiscriminate uses of chemical acaricides have contributed with the appearance of tick resistance to many drugs available in the marketplace, and it is a serious problem in the tick control. Flowers of Sambucus australis (South America), called "sabugueiro-from-Brazil", are used on infusions or decoctions forms in the folk medicine with diuretic, antipyretic, anti-inflammatory, and laxative purpose, also employed for treating respiratory diseases in human. The main goal of this study was to evaluate in vitro potential of S. australis leaves extracts as an acaricide agent. Ethanol...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acaricide; Crude extract; Tick; R. (B.) microplus; Sambucus australis.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011001200019

Acaro da necrose do coqueiro - Aceria guerreronis (Keifer): aspectos bioecologicos, sintomas, danos e medidas de controle.
Provedor de dados: 14
Autores: ALENCAR, J. A. de; HAJI, F. N. P.; BARBOSA, F. R.
Trata sobre a necrose do coqueiro: aspectos taxonomicos e bioecologicos, distribuicao geografica, sintomas e danos, nivel de dano economico, medidas de controle- controle cultural, controle biologico e controle quimico.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Acaro da necrose; Controle; Cocos; Diagnosis; Damage; Control; Coconut; Disease.; Coco; Doença; Aceria guerreronis; Cocos Nucifera; Dano; Ecologia; Sintoma.; Ecology.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131429

Accelerated aging and controlled deterioration for the determination of the physiological potential of onion seeds
Provedor de dados: 63
Autores: Rodo,Angelica Brod; Marcos Filho,Julio.
International research on vegetable seed vigor is not at the same level attained for grain crops species. This study was conducted to identify reliable procedures for the accelerated aging and controlled deterioration tests to rank onion (Allium cepa L.) seed lots according to their physiological potential. Six seed lots of the cultivars Aurora and Petroline were evaluated in the laboratory for germination, first count, seedling vigor classification, traditional and saturated salt accelerated aging (41ºC / 48 and 72 h), controlled deterioration (24% of water / 45ºC / 24 h) and seedling emergence tests. Seed moisture content after the saturated salt accelerated aging test was lower and uniform, which is considered an important advantage in comparison to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Seed analysis; Vigor.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300008

Accelerated aging of melon seeds
Provedor de dados: 63
Autores: Torres,Salvador Barros; Marcos Filho,Julio.
Accelerated aging is one of the most useful tests used for the evaluation of seed vigor but it is seldomly used to test melon (Cucumis melo L.) seeds. The objective this research was to compare different procedures of the accelerated aging test to evaluate the physiological quality of melon seeds and the efficiency of using saturated salt solution for the control of water uptake by seeds. Five seed lots each of the hybrids AF-646 and AF-682 were tested for germination, seedling emergence, traditional accelerated aging (periods 0f 48, 72 and 96 hours, at 38 or 41°C) and salt saturated accelerated aging. The accelerated aging test (traditional procedure and with salt solution) for 72h and 96h, at 38 or 41°C was sensitive to detect differences in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melo; Physiological quality; Vigor.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100012

Accelerated aging to assess parsley seed vigor
Provedor de dados: 75
Autores: Tunes,Lilian M de; Pedroso,Daniele C; Gadotti,Gizele Ingrid; Muniz,Marlove Fátima B; Barros,Antonio Carlos SA; Villela,Francisco A.
There are many gaps for the assessment of seed vigor in vegetable crops, among these the parsley. In this context, the accelerated aging test is recognized as one of the most widely used to evaluate seed physiological potential of various crop species, being able to provide information with a high degree of consistency. Thus, the objective of the present study was to evaluate the methodology of accelerated aging test to check parsley seed vigor, as well as verify the possibility of using NaCl solutions as an alternative to control seed water uptake during the aging period without reducing test sensitivity. Four lots of parsley seeds were tested for germination, seedling emergence, and accelerated aging for 48, 72 and 96 h (traditional and NaCl solutions)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Petroselinum sativum; Germination; SSAA; Vegetables; Vigor.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000300018

Acceptability by Girolando heifers and nutritional value of erect prickly pear stored for different periods
Provedor de dados: 86
Autores: Silva,Evannielly Thuanny dos Santos; Melo,Airon Aparecido Silva de; Ferreira,Marcelo de Andrade; Oliveira,Júlio César Vieira de; Santos,Djalma Cordeiro dos; Silva,Randerson Cavalcante; Inácio,Jonas Gomes.
Abstract: The objective of this work was to evaluate the nutritional value of erect prickly pear (EPP) (Opuntia stricta), stored for different periods, and its acceptability by Girolando heifers. Five heifers were distributed in a 5x5 Latin square. The treatments were as follows: EPP without storage time; stored EPP for three post-harvest periods - 7, 14, and 21 days; and cochineal nopal cactus (CNC) (Nopalea cochenillifera) without storage time, as a control treatment. The diets offered to the animals were composed of cacti of the different treatments, as well as sugarcane silage and soybean meal, and were evaluated for their chemical composition, intake, and nutrient digestibility. The ingestive behavior of the heifers was evaluated. The cactus EPP did...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nopalea cochinellifera; Opuntia stricta; Brazilian Semiarid Region; Cochineal nopal cactus; Forage cactus; Post-harvest.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900761

Acceptance and Motivational Impact of the Organic Certification System
Provedor de dados: 21
Autores: Schulze, Holger; Jahn, G.; Spiller, Achim.
In recent years the institutional framework of the organic certification system has step by step become a more formal and state run system. Our research shows that al-though the majority of the farmers accept the system, they are not convinced of its cost-benefit relationship. Farmers prefer a more association- and advice-oriented control of the organic certification process.
Tipo: Conference paper, poster, etc.
Palavras-chave: Food security; Food quality and human health Values; Standards and certification.
Ano: 2007
URL: http://orgprints.org/9572/1/9572_Schulze_Vortrag.pdf

Acceptance of Research Results by Farmers
Provedor de dados: 31
Autores: Presser,   H.A.; Russell,   H.M.
In 1962 a rabbit eradication campaign was carried out in the Mallee Region of Victoria. After the campaign was completed, a sociological survey was done to assess the farmers' reaction to it. The survey showed that new techniques were rapidly adopted by the farmers concerned. This was due to the intensity of personal contact during the campaign, and to the use of research results as the basis for the recommendations. While research results convinced some farmers to adopt the recommendations, legal, social and situational pressures were important for others. Different sources of information were used by different types of farmers. The more active and progressive farmers used the more expert sources while others used local sources of information. The...
Tipo: Journal Article
Palavras-chave: Farm Management; Research and Development/Tech Change/Emerging Technologies.
Ano: 1965
URL: http://purl.umn.edu/9019

Access and Resilience: Analyzing the Construction of Social Resilience to the Threat of Water Scarcity
Provedor de dados: 7
Autores: Langridge, Ruth; University of California, Santa Cruz; rlangrid@ucsc.edu; Christian-Smith, Juliet; University of California, Berkeley; jchristi2001@gmail.com; Lohse, Kathleen A.; Global Institute of Sustainability, Arizona State University; Kathleen.Lohse@asu.edu.
Resilience is a vital attribute that characterizes a system&amp;#8217;s capacity to cope with stress. Researchers have examined the measurement of resilience in ecosystems and in social&amp;#8211;ecological systems, and the comparative vulnerability of social groups. Our paper refocuses attention on the processes and relations that create social resilience. Our central proposition is that the creation of social resilience is linked to a community&amp;#8217;s ability to access critical resources. We explore this proposition through an analysis of how community resilience to the stress of water scarcity is influenced by historically contingent mechanisms to gain, control, and maintain access to water.  Access is defined broadly as the ability of a community...
Tipo: Peer-Reviewed Insight
Palavras-chave: Access; Resilience; Vulnerability; Water.
Ano: 2006

Access to Credit, Factor Allocation and Farm Productivity: Evidence From the CEE Transition Economies
Provedor de dados: 31
Autores: Ciaian,   Pavel; Falkowski,   Jan; Kancs,   d'Artis.
This paper analyses how farm access to credit affects farm input allocation and farm efficiency in the CEE countries. Drawing on a unique farm level panel data with 37,409 observations and employing a matching estimator we are able to control for the key source of endogeneity – unoberserved heterogeneity. We find that farms are credit constrained both in the short-run as well as in the long-run, but that credit constraint is asymmetric between inputs. Our estimates suggest that farm access to credit increases TFP up to 1.9% per 1000 EUR of additional credit. The use of variable inputs and capital investment increases up to 2.3% and 29%, respectively, per 1000 EUR of additional credit. Due to credit-financed investment in labour-saving farm equipment,...
Tipo: Conference Paper or Presentation
Palavras-chave: Access to credit; Investment; Factor allocation; Productivity; Transition countries; Agricultural and Food Policy; Farm Management; Land Economics/Use; Q12; P14.
Ano: 2010
URL: http://purl.umn.edu/61347

Accidents Happen: The Effect of Uncertainty on Environmental Policy Design
Provedor de dados: 31
Autores: Sproul,   Thomas W.; Zilberman,   David.
Major externality cases are random accidents which are not adequately addressed by the deterministic environmental policy literature -­‐ that of Pigouvian taxes, abatement subsidies and cap-­‐and-­‐trade. We consider a risk-­‐neutral industry where firms control the probability and Severity of accidents by preventive and responsive choices, but asymmetric information means Government only observes outcomes. We show that even without intervention, some care will be taken, however -­‐ we identify three policies that lead to the optimal solution: strict liability, a Stochastic subsidy, and a mandatory mutual insurance scheme. The subsidy policy may be very costly to taxpayers, especially when prevention affects the probability of accident occurrence, and...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; Risk and Uncertainty.
Ano: 2011
URL: http://purl.umn.edu/103927

Acción antifúngica in vitro de extractos vegetales para el control de patógenos de semillas de Switenia macrophylla King (caoba hondureña)
Provedor de dados: 100
Autores: Reyes Castro,Bismary.
Tipo: Journal article
Ano: 2014
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522014000200017

ACCIÓN COMBINADA DE FEROMONA SEXUAL Y DE AVISPAS Apanteles gelechiidivoris PARA EL CONTROL DE Tuta absoluta EN CULTIVOS DE TOMATE BAJO INVERNADERO
Provedor de dados: 37
Autores: MORALES,JESSICA; MUÑOZ,LAURA; RODRÍGUEZ,DANIEL; CANTOR,FERNANDO.
El cogollero del tomate, Tuta absoluta, es considerado plaga principal del cultivo de tomate. Su control se realiza con químicos, aunque existen otros tipos de control como el biológico y etológico. En Colombia no existe ningún precedente que involucre la acción combinada de estrategias de control etológico incluyendo feromona sexual y biológico con Apanteles gelechiidivoris para el control de la plaga en cultivos de tomate. En este trabajo, se evaluaron cuatro tratamientos bajo condiciones de invernadero que incluyen control biológico con A. gelechiidivoris, etológico con trampas de feromona sexual, acción combinada de ambos controles y convencional (químico), con el objetivo de desarrollar una estrategia de control de T. absoluta a través de la acción...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Control biológico; Control etológico; Manejo integrado de plagas; Parasitoide.
Ano: 2014
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2014000200005

Acción de Ascaris lumbricoides sobre la carga aniónica de eritrocitos y eritrocitos desializados
Provedor de dados: 38
Autores: Ponce de León,Patricia; Racca,Liliana; Menéndez,Manuel; Biondi,Claudia; Valverde,Juana.
El objetivo del presente trabajo fue estudiar el efecto de A. lumbricoides sobre la carga aniónica de eritrocitos y eritrocitos desializados. Se trabajó con 30 extractos ([EA]) y 2 concentrados larvales parasitarios ([CLAL] 1: 500- 600/ [CLAL]2: 200- 300 larvas/ mL) y eritrocitos Grupo "O" en medio salino (GR) y enzimático (GRb). Se incubó el sedimento globular con igual volumen de parásito y el Control (GRc) con solución fisiológica, a 37 ºC. Se aplicaron los Métodos de Polibrene y Azul Alcian y se implementó una Titulación de la Agregación a partir del Polibrene. Se definieron coeficientes para cada método que fueron analizados estadísticamente. Los resultados mostraron que a mayor tiempo de tratamiento y a mayor concentración larvaria, aumentó la...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascaris lumbricoides; Carga eritrocitaria.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572012000200010

Acción de la 5'azacitidina en cromosomas de células linfocitarias de bovinos
Provedor de dados: 109
Autores: Llambí,Silvia; Coppola,Betina; Gagliardi,Rosa; Tejedor,Teresa; Arruga,María V.
La azacitidina (5-azaC) es una sustancia que actúa inhibiendo la metilación del ADN, es utilizada en experiencias de clonación, transgénesis por transferencia nuclear y estudios de fragilidad cromosómica. Se ha observado la manifestación de diversas patologías en animales domésticos nacidos de experiencias de clonación. Ellas estarían asociadas a una inexacta reprogramación nuclear relacionada con fenómenos epigenéticos de metilación del ADN. En el presente trabajo se realizó una curva de inducción con diferentes concentraciones finales de 5-azaC (0 uM, 5 uM, 10 uM, 20 uM, 50 uM y 70 uM) con el objetivo de estudiar los efectos sobre la estructura cromosómica en cultivos linfocitarios bovinos. Se utilizó la técnica de macrocultivo para análisis cromosómico...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5'-azacitidina C; Cromosomas; Bovino.
Ano: 2008
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122008000100009

Acción del Etanol sobre el Epitelio Nasal y Glándulas Septales de Ratas, Durante la Lactancia
Provedor de dados: 77
Autores: Marcondes de Godoy,Marcos; Lopes,Ruberval A.; Sala,Miguel A.; Vinha,Dionísio; Regalo,Simone C. H.
El consumo materno de etanol durante la lactancia altera la composición de la leche, provoca la aparición de etanol y acetaldehído en la leche y agrava los efectos del etanol en las crías de ratas. De este modo, fueron estudiados los efectos del etanol, administrado a las ratas madres durante la lactancia, sobre el epitelio respiratorio y en las glándulas septales anterior y posterior de las crías lactantes con 21 días de vida postnatal. Las ratas recibieron etanol al 20% en el bebedero, ad libitum durante los 21 días que amamantaron. Los controles recibieron un volumen similar de agua sin alcohol. Las crías fueron sacrificadas en el 21 día. Las cabezas fueran cortadas frontalmente. Los cortes seriados de 6 µm de grosor fueron teñidos con hematoxilina y...
Tipo: Journal article
Palavras-chave: Alcoholismo; Cariometría; Estereología; Epitelio Respiratorio; Glándulas Septales; Lactancia; Rata.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000400002

ACCIONES PARA CONSERVACIÓN DE SUELOS IDENTIFICADAS MEDIANTE ÍNDICES KAPPA AL NORESTE DE DURANGO, MÉXICO
Provedor de dados: 115
Autores: López-Santos,Armando; Bueno-Hurtado,Palmira; Arreola-Ávila,J. Guadalupe; Pérez-Salinas,J. Emmanuel.
Resumen La estimación de la erosión edáfica basada en modelación, como con la ecuación universal de pérdida de suelo (USLE) o la USLE revisada (RUSLE), considera la acción antrópica (factor C) para los usos de la tierra y tiene limitaciones para detectar cómo sucede esa influencia. El objetivo de esta investigación fue desarrollar un procedimiento para identificar la presencia o ausencia de acciones de conservación de suelos a partir de la observación experta de evidencias en terrenos dedicados a la agricultura de secano, del Norte de Durango, México. La unidad de estudio (UE) de 2250 km2, incluyó a San Pedro del Gallo y San Luis del Cordero (25° 21” y 25’ 59” N; -104° 29”, -104° 1” O y clima árido y semiárido). El diseño experimental fue completamente al...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservación de suelos; Erosión hídrica; Observación experta.
Ano: 2017
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000600591

Acclimatization of Tapeinochilos ananassae plantlets in association with arbuscular mycorrhizal fungi
Provedor de dados: 86
Autores: Oliveira,João Ricardo Gonçalves de; Morais,Thiago Alberto de Lima; Melo,Natoniel Franklin de; Yano‑Melo,Adriana Mayumi.
The objective of this work was to assess the potential of three isolates of arbuscular mycorrhizal fungi to promote growth of micropropagated plantlets of Tapeinochilos ananassae during acclimatization. The experiment was carried out in greenhouse, in a completely randomized block design, with four inoculation treatments: non‑inoculated control and plants inoculated with Glomus etunicatum, Acaulospora longula or Gigaspora albida, with ten replicates. After 90 days, the following parameters were evaluated: survival rate, height, leaf and tiller number, leaf area, fresh and dry biomass, contents of macro‑ and micronutrients in the root and shoot, glomerospore number, and mycorrhizal colonization. The survival percentage was 100%, except for plants inoculated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glomeromycota; Growth promotion; Micropropagation; Mineral nutrition; Tropical flowers.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000900018

Accommodating covariates in receiver operating characteristic analysis
Provedor de dados: 31
Autores: Janes,   Holly; Longton,   Gary M.; Pepe,   Margaret S.
Classification accuracy is the ability of a marker or diagnostic test to discriminate between two groups of individuals, cases and controls, and is commonly summarized by using the receiver operating characteristic (ROC) curve. In studies of classification accuracy, there are often covariates that should be incorporated into the ROC analysis. We describe three ways of using covariate information. For factors that affect marker observations among controls, we present a method for covariate adjustment. For factors that affect discrimination (i.e., the ROC curve), we describe methods for modeling the ROC curve as a function of covariates. Finally, for factors that contribute to discrimination, we propose combining the marker and covariate information, and we...
Tipo: Article
Palavras-chave: Roccurve; Comproc; Rocreg; Receiver operating characteristic analysis; ROC; Covariates; Sensitivity; Specificity; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/122695

Accounting of agricultural and nonagricultural impacts of irrigation and drainage systems:  A study of multifunctionality in rice.
Provedor de dados: 31
Autores: Matsuno,   Yutaka; Ko,   H.S.; Tan,   C.H.; Barker,   Randolph; Levine,   G.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation farming; Drainage; Groundwater; Recharge; Rice; Paddy fields; Infiltration; Flood control; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2002
URL: http://purl.umn.edu/92702

Accounting standards for supply chains
Provedor de dados: 26
Autores: Bremmers, H.
In this paper principles for accounting in supply chains will be developed. The three principles we introduce are: the reciprocity in information access, asset investment and retrieval, and matching risks and returns. The principles provide guidance in managerial and stakeholder decision making, monitoring and control. The information that management and other stakeholders need is based on these standards. The use of the supply-chain accounting principles increases transparency. Transparency is one of the main elements of what Fowler et al (2004) call ‘virtually embedded ties’. We argue that transparency should replace, or at least supplement, relational trust in supply channels. We argue also that technological innovation, such as electronic chain-wide...
Tipo: Conference proceedings
Ano: 2006
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1139

Accumulation of dioxins and PCB in house fly larvae (Musca domestica) reared in poultry manure and used in feed for organic laying hens
Provedor de dados: 21
Autores: Nordentoft, Steen; Cederberg, Tommy Licht; Fischer, Christian Holst; Bjerrum, Lotte.
Extended and short abstracts for the conference "Dioxin 2014": A feeding experiment was set up on an organic farm where four groups of layers were used with 37 hens in each.  Two groups of hens received a supplement of 15 g larvae per hen per day, while two control groups received  only compound feed. The duration of the feeding experiment was two month. Samples of fly larvae, poultry  manure, compost and compound feed as well as pooled egg samples from each group were analysed for levels of  dioxins and PCB
Tipo: Conference paper, poster, etc.
Palavras-chave: Environmental aspects.
Ano: 2014
URL: http://orgprints.org/26484/13/26484.pdf

Accumulation of DOC in Low Phosphate Low Chlorophyll (LPLC) area: is it related to higher production under high N:P ratio?
Provedor de dados: 5
Autores: Mauriac, R.; Moutin, T.; Baklouti, M.
The biogeochemistry of carbon and nutrients (N,P) in the surface layer of the ocean strongly depends on the complex interactions between primary producers (phytoplankton) and remineralizers (heterotrophic bacteria). To understand how these interactions impact the overall DOC dynamics in the surface layer of the Mediterranean Sea, we implemented, using Eco3M (Ecological Mechanistic Modular Modelling tool), a multi-element model with a mechanistic description of primary production. We studied the model steady state results under various nutrient conditions and fixed cell abundances. By doing so, we show how the bottom up control of osmotrophs growth can impact the overall DOC dynamics in the system. Based on our set of parameters, the biogeochemical...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00133/24397/22414.pdf

Accumulation of organic solutes and enzymatic activity in cut roses (Rosaceae) cultivated with physiological effect products in the Sub- Middle São Francisco River Valley
Provedor de dados: 65
Autores: Silva,Maria de Lourdes Neres da; Santos,Mariana Correia; Barbosa,Mayara Suzanne de Melo; Sabino,João Henrique Ferreira; Ribeiro,Hugo Leonardo Coelho; Ramos,Anamaria Ribeiro Pereira; Silva,Marcelle Almeida da; Beckmann-Cavalcante,Márkilla Zunete.
ABSTRACT: The aim of the present study was to evaluate the accumulation of carbohydrates, protein, and proline as well as the activity of the antioxidant enzymes superoxide dismutase and catalase in the Ambiance cultivar of cut rose plants grown with the application of physiological effect products in the Sub-Middle São Francisco River Valley in Brazil. The experiment was performed under a mesh screen with 50% shading. The experimental design used randomized blocks with four repetitions and six treatments: T1) control (water); T2) boscalid; T3) pyraclostrobin; T4) boscalid + pyraclostrobin (T2 + T3); T5) fluxapyroxad + pyraclostrobin; T6) plant growth regulators 4-(indol-3-yl) butyric acid (IBA) + gibberellic acid (GA3) + kinetin; these treatments were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rosa spp.; Strobilurins; Plant growth regulators; Carbohydrates; Antioxidant enzymes.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001200401

Accumulation of silver nanoparticles and its effect on the antioxidant capacity in Allium cepa L
Provedor de dados: 85
Autores: Juárez-Maldonado,A; Rosales-Velázquez,JL; Ortega-Ortiz,H; Cabrera-De-la-Fuente,M; Ramírez,H; Benavides-Mendoza,A.
Nanotechnology is currently an important worldwide study field because it provides control on matter at a nanometric scale. In food and agricultural fields, the applications of this technology are in early stages. Onion is one of the main vegetables grown in the world. Onion is a low calorie food which contains a large amount of flavonoids. In this work, silver nitrate application in onion was evaluated. An onion crop was developed at the University Antonio Narro in Saltillo, Mexico. Two methods of silver nitrate application were used (a nutritive solution: 0, 20, 40 and 80 mg/L of AgNO3; and foliar spray: 0, 20 and 40 mg/L of AgNO3). The samples were taken at 30, 60 and 90 days after transplanting. Total antioxidant capacity, silver accumulation and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nanotechnology; Onion; Silver nitrate; Nanoparticles.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572013000100013

Accumulation of trimethoprim, sulfamethoxazole, and &lt;i&gt;N&lt;/i&gt;-acetylsulfamethoxazole in fish and shrimp fed medicated &lt;i&gt;Artemia franciscana&lt;/i&gt;
Provedor de dados: 27
Autores: Chair, M.; Nelis, H.J.; Leger, P.; Sorgeloos, P.; De Leenheer, A.P.
In a previous paper (H.J. Nelis, P. Léger, P. Sorgeloos, and A.P. De Leenheer, Antimicrob. Agents Chemother. 35:2486-2489, 1991) it was reported that two selected antibacterial agents, i.e. trimethoprim and sulfamethoxazole, can be efficiently bioencapsulated in nauplii of the brine shrimp &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; franciscana&lt;/i&gt; for administration to fish. This follow-up study showed that larvae of the sea bass and the turbot as well as postlarvae of the white shrimp accumulate the therapeutic agents in high quantities when fed medicated &lt;i&gt;A. franciscana&lt;/i&gt;. To monitor their levels as a function of time, the liquid chromatographic method originally developed for the analysis of &lt;i&gt;A. franciscana&lt;/i&gt; was modified...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2923

Accuracy and long-term stability assessment of inductive conductivity cell measurements on Argo floats
Provedor de dados: 5
Autores: Nezlin, Nikolay P.; Dever, Mathieu; Halverson, Mark; Leconte, Jean-michel; Maze, Guillaume; Richards, Clark; Shkvorets, Igor; Zhang, Rui; Johnson, Greg.
This study demonstrates the long-term stability of salinity measurements from Argo floats equipped with inductive conductivity cells, which have extended float lifetimes as compared to electrode-type cells. New Argo float sensor payloads must meet the demands of the Argo governance committees before they are implemented globally. Currently, the use of CTDs with inductive cells designed and manufactured by RBR Ltd., has been approved as a Global Argo Pilot. One requirement for new sensors is to demonstrate stable measurements over the lifetime of a float. To demonstrate this, data from four Argo floats in the western Pacific Ocean equipped with the RBRargo CTD sensor package are analyzed using the same Owens-Wong-Cabanes (OWC) method and reference datasets...
Tipo: Text
Palavras-chave: Pacific Ocean; Salinity; Instrumentation/sensors; Profilers; Oceanic; Quality assurance/control.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00654/76568/77698.pdf

Accuracy Assessment of Coastal Topography derived from UAV Images
Provedor de dados: 5
Autores: Long, N.; Millescamps, B.; Pouget, F.; Dumon, A.; Lachaussee, N.; Bertin, X.
To monitor coastal environments, Unmanned Aerial Vehicle (UAV) is a low-cost and easy to use solution to enable data acquisition with high temporal frequency and spatial resolution. Compared to Light Detection And Ranging (LiDAR) or Terrestrial Laser Scanning (TLS), this solution produces Digital Surface Model (DSM) with a similar accuracy. To evaluate the DSM accuracy on a coastal environment, a campaign was carried out with a flying wing (eBee) combined with a digital camera. Using the Photoscan software and the photogrammetry process (Structure From Motion algorithm), a DSM and an orthomosaic were produced. Compared to GNSS surveys, the DSM accuracy is estimated. Two parameters are tested: the influence of the methodology (number and distribution of...
Tipo: Text
Palavras-chave: Digital Surface Model; Coastal monitoring; UAV photogrammetry; Accuracy.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00668/78011/80248.pdf

Accuracy of Numerical Solution to Dynamic Programming Models
Provedor de dados: 31
Autores: King,   Robert P.; Lohano,   Heman D.
Dynamic programming models with continuous state and control variables are solved approximately using numerical methods in most applications. We develop a method for measuring the accuracy of numerical solution of stochastic dynamic programming models. Using this method, we compare the accuracy of various interpolation schemes. As expected, the results show that the accuracy improves as number of nodes is increased. Comparison of Chebyshev and linear spline indicates that the linear spline may give higher maximum absolute error than Chebyshev, however, the overall performance of spline interpolation is better than Chebyshev interpolation for non-smooth functions. Two-stage grid search method of optimization is developed and examined with accuracy analysis....
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2006
URL: http://purl.umn.edu/14230

ACEPTACIÓN DE UNA DIETA ARTIFICIAL POR LARVAS DE LA MARIPOSA BATTUS POLYDAMAS POLYDAMAS(LEPIDOPTERA: PAPILIONIDAE)
Provedor de dados: 37
Autores: Claro,Ricardo A; Ruiz,Natalia.
Se evalúo la aceptabilidad de dietas artificiales para la alimentación de larvas de la mariposa Battus polydamas polydamas (Lepidoptera: Papilionidae), bajo condiciones de laboratorio. A las larvas se les ofrecieron dietas en diferentes presentaciones y composiciones: en discos, vertida como suplemento sobre hojas del hospedero y plantas hospedero como control. La composición de la dieta se realizó de acuerdo con ensayos previos y con los análisis nutricionales desarrollados a larvas maduras y a hojas de la planta hospedera, Aristolochia maxima (Aristolochiaceae). La longevidad de las larvas, criadas en laboratorio, se vio afectada significativamente por los diferentes tratamientos de alimentación. Solo se finalizó el ciclo de desarrollo entre las larvas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aristolochia máxima; Oligofagos; Historias de Vida; Cría; Conservación.
Ano: 2010
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2010000100004

Acetaldehyde induced developmental and genetic damage in Drosophila melanogaster
Provedor de dados: 46
Autores: Palermo,A.M; Mudry,M.D.
Acetaldehyde (AAld) is a ubiquitous compound in the environment. Exposure may occur in its manufacture or use, in the consumption of alcoholic beverages and through cigarette smoke. It causes distant target effects, including DNA damage, glutathione depletion, enzyme inactivation and cell death. In the present work, its potential teratogenic, mutagenic and recombinagenic effects in somatic cells of D. melanogaster were analyzed. The white/white+ (w/w+) eye mosaic test (Somatic Mutation And Recombination Test, SMART) was applied by mating w/w females with y/Y males. Larvae of 48 ± 4 h were transferred to media with 0.01 %, 0.02 %, 0.05 % and 0.10 % AAld for 12 hs and then moved to regular media until pupation. The emerging w/w+ females were evaluated for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ethanol; Teratogenesis; Mutagenesis; Loss of heterozygosity; Eye-spot test.
Ano: 2015
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332015000300007

Acetylcholine and bradykinin enhance hypotension and affect the function of remodeled conduit arteries in SHR and SHR treated with nitric oxide donors
Provedor de dados: 56
Autores: Gerová,M.; Kristek,F.; Cacányiová,S.; Cebová,M.
Discrepancy was found between enhanced hypotension and attenuated relaxation of conduit arteries in response to acetylcholine (ACh) and bradykinin (BK) in nitric oxide (NO)-deficient hypertension. The question is whether a similar phenomenon occurs in spontaneously hypertensive rats (SHR) with a different pathogenesis. Wistar rats, SHR, and SHR treated with NO donors [molsidomine (50 mg/kg) or pentaerythritol tetranitrate (100 mg/kg), twice a day, by gavage] were studied. After 6 weeks of treatment systolic blood pressure (BP) was increased significantly in experimental groups. Under anesthesia, the carotid artery was cannulated for BP recording and the jugular vein for drug administration. The iliac artery was used for in vitro studies and determination...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hypertension; Conduit iliac artery; Resistance arteries; Molsidomine; Pentaerythritol tetranitrate; Iliac artery; Structure.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000600019

Acetylcholinesterase activity in copepods (Tigriopus brevicornis) from the Vilaine River estuary, France, as a biomarker of neurotoxic contaminants
Provedor de dados: 5
Autores: Forget, Joelle; Beliaeff, Benoit; Bocquene, Gilles.
From April 1997 to June 1998, 14 measurements of acetylcholinesterase (AChE) enzymatic activity were performed with the copepod, Tigriopus brevicornis, collected at five stations in the Vilaine River estuary (South Brittany, France). Simultaneously, four chemical analyses of triazines and one analysis of total pesticides in water were undertaken. AChE activity levels in T brevicornis were compared to the levels measured at a reference site not exposed to effluents from Vilaine River. Results reveal significant differences between AChE activity levels depending on location of stations in the plume of the river with an increasing gradient of activity from the upstream to the downstream stations, thus indicating that neurotoxic contaminants are mainly brought...
Tipo: Text
Palavras-chave: Monitoring; Estuary; Pollution; Pesticides; Tigriopus brevicornis; Acetylcholinesterase activity.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-737.pdf

Acetylcholinesterase activity in the pons and medulla oblongata of rats after chronic electroconvulsive shock
Provedor de dados: 56
Autores: Camarini,R.; Benedito,M.A.C.
An imbalance between cholinergic and noradrenergic neurotransmission has been proposed for the etiology of affective disorders. According to this hypothesis, depression would be the result of enhanced cholinergic and reduced noradrenergic neurotransmission. Repeated electroconvulsive shock (ECS) is an effective treatment for depression; moreover, in laboratory animals it induces changes in brain noradrenergic neurotransmission similar to those obtained by chronic treatment with antidepressant drugs (down-regulation of beta-adrenergic receptors). The aim of the present study was to determine whether repeated ECS in rats changes acetylcholinesterase (Achase) activity. Achase controls the level of acetylcholine (Ach) in the synaptic cleft and its levels seem...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetylcholinesterase; Medulla oblongata; Pons; Chronic electroconvulsive shock.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001000012

Acetylcholinesterase enzyme activity in carp brain and muscle after acute exposure to diafuran
Provedor de dados: 63
Autores: Golombieski,Jaqueline Ineu; Marchesan,Enio; Camargo,Edinalvo Rabaioli; Salbego,Joseânia; Baumart,Joele Schmitt; Loro,Vania Lucia; Machado,Sérgio Luiz de Oliveira; Zanella,Renato; Baldisserotto,Bernardo.
Sublethal adverse effects may result from exposure of aquatic organisms to insecticides at environmentally relevant concentrations. Fingerlings of the common carp (Cyprinus carpio, Linnaeus, 1758), grass carp (Ctenopharyngodon idella, Valenciennes, 1844), and bighead carp (Aristichthys nobilis, Richardson, 1845) were exposed to diafuran, an insecticide widely used during rice cultivation in Southern Brazil. The aim of this study was to verify the relationship between the lethal concentration (LC50) of diafuran and the acetylcholinesterase (AChE) activity in brain and muscle tissues of these species as a possible early biomarker of exposure to this insecticide. LC50 was determined for fish exposed to diafuran concentrations during 96 h (short term): common...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyprinus carpio; Ctenopharyngodon idella; Aristichthys nobilis; Pesticide; Lethal concentration.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000400003

Acetylcholinesterase inhibition and antimicrobial activity of hydroxyl amides synthesized from natural products derivatives
Provedor de dados: 42
Autores: BOAVENTURA,MARIA AMÉLIA D.; XAVIER,LAURA F.W.; VIEIRA,HENRIETE S.; TAKAHASHI,JACQUELINE A.; NASCIMENTO JUNIOR,WILTON J.D.; ARAUJO,TAMIRES P.; COELHO,AMANDA C.S.
ABSTRACT Thirteen natural products derivatives of hydroxyl amide class, three described for the first time, were synthesized by reaction of three indole acids and 3,4,5-trimethoxybenzoic acid with six different amino alcohols in the presence of triphenylphosphine and N-bromosuccinimide. The derivatives were tested against the Gram (+) bacteria Staphylococcus aureus and Bacillus cereus, Gram (-) Pseudomonas aeruginosa and Escherichia coli, besides the yeast Candida albicans. One of the compounds (7) was selectively active against C. albicans (91.3 ± 0.49% inhibition) showing a great potential as a new drug lead, since it was more active than the positive control, miconazole (88.7 ± 2.41% inhibition). Regarding bacterial inhibition, compounds demonstrated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetylcholinesterase inhibition antimicrobial activity indole acid derivatives 3; 4; 5-trimethoxybenzoic acid derivatives.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000501945

Acetylsalicylic acid and labeling of blood constituents with technetium-99m
Provedor de dados: 52
Autores: Fonseca,Adenilson de Souza da; Frydman,Jacques Natan Grinapel; Rocha,Vanessa Câmara da; Bernardo-Filho,Mario.
Acetylsalicylic acid is the drug most used an anti-inflammatory agent and for secondary prevention of thrombotic phenomenon. Drugs can modify the labeling of blood constituents with technetium-99m (99mTc). The aim of this work was to evaluate the effect of in vitro or in vivo assays with acetylsalicylic acid on the labeling of the blood constituents with 99mTc. In vitro assay was performed with samples of whole blood from Wistar rats incubated with acetylsalicylic acid (1.0 mg/ml) for one hour before the 99mTc-labeling process. For in vivo assay, Wistar rats were treated with acetylsalicylic acid (1.5 mg/kg) during one hour, and the whole blood was withdrawn for the 99mTc-labeling process. Saline was used in control groups. Data showed that the fixation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetylsalicylic Acid; Blood Constituents; Technetium-99m.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700024

Acetylsalicylic acid and morphology of red blood cells
Provedor de dados: 52
Autores: Frydman,Jacques Natan Grinapel; Fonseca,Adenilson de Souza da; Rocha,Vanessa Câmara da; Benarroz,Monica Oliveira; Rocha,Gabrielle de Souza; Pereira,Marcia de Oliveira; Pereira,Mario José; Medeiros,Aldo Cunha; Bernardo-Filho,Mario.
This work evaluated the effect of in vitro and in vivo treatment with ASA on the morphology of the red blood cells. Blood samples or Wistar rats were treated with ASA for one hour. Blood samples or animals treated with saline were used as control group. Blood smears were prepared, fixed, stained and the qualitative and quantitative morphology of red blood cells were evaluated under optical microscopy. Data showed that the in vitro treatment for one hour with ASA at higher dose used significantly (p&lt;0.05) modified the perimeter/area ratio of the red blood cells. No morphological alterations were obtained with the in vivo treatment. ASA use at highest doses could interfere on shape of red blood cells.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetylsalicylic Acid; Blood Cells; Morphology.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000300010

Achievements, challenges and perspectives of financial decentralization in Bulgaria
Provedor de dados: 31
Autores: Stoilova,   Desislava.
The process of gradual administrative and political decentralization in Bulgaria started in 1991, but the real financial decentralization process started in the beginning of 2003 with the adoption of a comparatively clear expenditure assignment and introduction of a transparent and predictable intergovernmental transfer system. Step by step, local governments have been given full control over some of the own-source revenues (local fees, service prices and revenues from municipal asset management) and limited control over the local tax levy.  This study is intended to examine and critically analyze the financial decentralization reform in Bulgaria, outlining the key achievements and basic weaknesses of expenditure assignment, local taxation and...
Tipo: Journal Article
Palavras-chave: Financial decentralization; Local finance; Intergovernmental fiscal relations.; Public Economics; H71; H77.
Ano: 2010
URL: http://purl.umn.edu/94634

ACIAR’s 25 year investment in fruit-fly research
Provedor de dados: 31
Autores: Lindner,   Robert K.; McLeod,   Paul.
Fruit flies are recognised as one of the major pests of fruit and vegetable crops worldwide. Potential benefits from fruit fly research include biosecurity benefits from better quarantine surveillance that reduces the costs of an incursion by a damaging exotic pest fruit fly; market access benefits by enabling new fruit exports; and field control benefits from better crop management. The Australian Centre for International Agricultural Research (ACIAR)’s investment in fruitfly research goes back some 25 years to an initial project in Malaysia. Since that time, ACIAR’s continued investment has funded a total of 18 projects ranging across several areas of fruit-fly research, and covering Malaysia, Thailand, Philippines, Fiji Islands, Samoa, Tonga, Cook...
Tipo: Conference Paper or Presentation
Palavras-chave: ACIAR; Fruit-fly; Research; Impact; Assessment; Crop Production/Industries.
Ano: 2009
URL: http://purl.umn.edu/47617

Acid-base balance in sheep with experimentally induced acute ruminal lactic acidosis
Provedor de dados: 45
Autores: Sabes,A.F.; Girardi,A.M.; Zangirolami Filho,D.; Bueno,G.M.; Oliveira,J.A.; Marques,L.C.
ABSTRACT This study aimed to investigate the changes in the acid-base balance of sheep with experimentally induced acute ruminal lactic acidosis (ARA). Ten ewes orally received 15 grams of sucrose per kilogram of body mass. Arterial blood samples for blood gas analysis were obtained at the following intervals: before the induction of ARA (control), and 2, 4, 6, 8, 10, 12, 16, 20, 24, 28, 32, 36, 48, 72, 96, 120 and 144 hours after sucrose administration. Urine samples for pH measurement were obtained at the following times: -15 days, -7 days, and immediately before sucrose administration, then at 24, 48, 72, 96, 120 and 144 hours. Thereafter, both blood and urine samples were obtained on the 2nd, 3rd, and 4th following weeks. From 4 hours after the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood gas analysis; Metabolic acidosis; Santa Inês.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000300637

Ácido indol-3-butírico (AIB) no enraizamento de estacas de fedegoso gigante
Provedor de dados: 190
Autores: Lafetá, Bruno Oliveira; de Matos, Milena Pimenta; Lage, Patrícia; Ferraro, Ana Carolina; Penido, Tamires Mousslech Andrade.
O ácido indol-3-butírico (AIB) é um regulador vegetal amplamente empregado para induzir o enraizamento de estacas. O objetivo do presente trabalho foi avaliar o efeito de diferentes concentrações de AIB e de dois tipos de estacas na propagação vegetativa de Senna alata (Linnaeus) Roxburgh. O experimento foi estabelecido em delineamento inteiramente casualizado com quatro repetições, em esquema fatorial 4 x 2, sendo estudado o efeito de quatro concentrações de AIB:T1 – 0 mg L-1 (controle); T2 – 250 mg L-1; T3 – 500 mg L-1 e T4 – 1.000 mg L-1 e de dois tipos de estacas (E1 – herbácea e E2 – semilenhosa). Cada unidade experimental foi constituída por 12 estacas. As concentrações estudadas desse regulador vegetal não influenciaram no desenvolvimento do sistema...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências Agrárias; Recursos Florestais e Engenharia Florestal; Silvicultura Herbácea; Rizogênese; Semilenhosa Herbaceous; Rhizogenesis; Semihardwood.
Ano: 2016
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1084

Ácidos nucleicos en el ratón con mielosupresión por quimioterapia y tratado con Aloe vera L.
Provedor de dados: 98
Autores: Paz Naranjo,José de la; Moreira Carrillo,Lourdes; Machin Lugones,Maribel.
Con el objetivo de conocer el efecto del extracto acuoso inyectable Aloe vera sobre el contenido de ácidos nucleicos en sangre periférica del ratón con mielosupresión por quimioterapia fueron utilizados ratones Balb/c hembras de 18 g de peso, que habían recibido previamente una dosis subletal de ciclofosfamida. El tratamiento con el extracto vegetal en dosis de 0,18 mg/Kg se realizó por vía intramuscular una vez al día y durante 7 días. Las determinaciones se realizaron al inicio del ensayo, y a los 4 y 8 días de comenzada la administración del inyectable. Se encontró un aumento estadísticamente significativo del contenido de ácidos nucleicos totales en leucocitos de sangre periférica en los animales que recibieron el extracto a los 8 días de comenzado el...
Tipo: Journal article
Palavras-chave: ALOE/uso terapéutico; ACIDOS NUCLEICOS; CICLOFOSFAMIDA; RATONES CONSANGUINEOS BALB C.
Ano: 2003
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962003000300004

Acknowledging the Role of Gender in Organic farming, Informal Seed Sector in particular and krisoks’ Perspectives
Provedor de dados: 21
Autores: Shahid, Shaila; Md. Hossain, Zakir.
Seed-the source of life. And woman holds the seed with the hope of new life.    Instead of producing diverse seed from homestead agriculture, women are engaged traditionally to select seed, drying, preserving, protecting during storage, saving them from any economical crisis of the family. To ensure the seed quality and the perfect storage place &amp; methods, women hold the vast knowledge. They decide the quantity and variety of seed to be saved and the method of preservation. Seed selection by women is a continuous activity. Working in the fields, they observe the plants and decide which seeds to select. They identify plants of good quality on the basis of size, grain formation and their resistance to pests and insects. Here a woman looks at the seed...
Tipo: Conference paper, poster, etc.
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2014
URL: http://orgprints.org/23982/3/23982.pdf

Ações para o problema da traça do tomateiro, na região do Submédio São Francisco.
Provedor de dados: 14
Autores: HAJI, F. N. P.
O presente documento foi elaborado por ocasiao do I ENCONTRO SOBRE MENAJO DE PRAGAS DO TOMATEIRO, promovido pelo CPATSA-EMBRAPA, em Petrolina, PE, no periodo de 25 a 28 de setembro de 1989. Esse evento teve como objetivo, reunir tecnicos ligados a pesquisa, ensino, extensao e a empresas particulares, para tratas dos problemas entomologicos relacionados a cultura do tomate a nivel nacional, visando tracar diretrizes apra um programa sobre menajo integrado das pragas do tomateiro, notadamente apra a regiao do submedio Sao Francisco. Apresenta as medidas a serem adotadas, a curto, medio e longo prazos, para o problema da traca do tomateiro Scrobipalpula absoluta, a mais importante praga da cultura do tomate nessa regiao.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Nordeste; Região semi-árida; Tomato; Control; Management; Northeast; Semi-arid region.; Tomate; Manejo; Scrobipalpula Absoluta.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132229

Acondicionamiento y manejo de un banco de reproductores de pargo criollo (Lutjanus analis, Cuvier, 1828).
Provedor de dados: 20
Autores: Llanes, Y.; Reyes, R.; Fernández, N.; Ortega, N.
Some handling practices related to health about finfish culture are analyzed and  discussed in this paper. The wild caught broodstocks were cultivated for two years  under environment conditions in concrete pond where developed techniques  avoided  stressful conditions like high stocking densities which may result in  compromised fish health, disease and mortality. Marine fish species are also  susceptible to many infectious pathogens including parasites. As a result of that,  prophylactic bathes have been identified as method of control. Reproductive  parameters could have showed due to good managements.
Tipo: Journal Contribution
Palavras-chave: Stress (mechanics); Marine fish; Reproductive behaviour; Reproductive behaviour; Http://aims.fao.org/aos/agrovoc/c_37902.
Ano: 2011
URL: http://hdl.handle.net/1834/3961

Acquisition de données sur l'expansion de Caulerpa taxifolia et Caulerpa racemosa en rade d'Hyères et en rade de Toulon (France)
Provedor de dados: 5
Autores: Belsher, Thomas; Lunven, Michel; Le Gall, Erwan; Caisey, Xavier; Dugornay, Olivier; Mingant, Christian.
The oceanographic cruise Califa 2000, as the previous cruise, which concerned the "Parc National de Port-Cros", had for its principal objective to furnish some elements susceptible to help in the control of Caulerpa taxifolia expansion and in the protection of particularly sensitive areas (national parks, patrimonial sectors, regions of socio-economic importance). The cruise lasted from the 4th to the 21st of September 2000 in the rade d'Hyeres, Porquerolles island included, and the rade of Toulon. This detailed prospection gives a location of C. taxifolia and C. racemosa, a new invasive seaweed. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Tipo: Text
Palavras-chave: Rade de Toulon; Rade d' Hyeres; Cartography; Caulerpa racemos; Caulerpa taxifolia; Invasive species; Rade de Toulon; Rade d'Hyères; Cartographie; Caulerpa racemosa; Caulerpa taxifolia; Espèces invasives.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-520.pdf

Acquisition of susceptibility to Vibrio penaeicida in Penaeus stylirostris postlarvae and juveniles
Provedor de dados: 5
Autores: Goarant, Cyrille; Regnier, France; Brizard, Raphael; Marteau, Anne-laure.
Vibriosis is a major disease problem in shrimp aquaculture, affecting all developmental stages, from larvae in hatchery tanks to juveniles and broodstock in growout ponds. However, bacterial strains responsible for vibriosis in the successive stages are usually considered to be different, and virulence specificity has been reported both at the species and at the stage levels. The so-called « Syndrome 93 » is a seasonal juvenile vibriosis caused by Vibrio penaeicida which affects Penaeus stylirostris in growout ponds and broodstock tanks in New Caledonia. This pathology does not cause any mortality in hatchery or nursery phases. An experimental infection design using balneation of postlarvae and early juveniles in V. penaeicida suspensions was used to...
Tipo: Text
Palavras-chave: Penaeus stylirostris; Vibrio sp.; Diseases and their control crustaceans.
Ano: 1998
URL: https://archimer.ifremer.fr/doc/1998/publication-383.pdf

Acreage Allocation Model Estimation and Policy Evaluations for Major Crops in Turkey
Provedor de dados: 31
Autores: Koc,   A. Ali.
This study estimates a system of supply equations for major field crops in Turkey and evaluates alternative agricultural policies for crop supply control. The supply of major field crops in Turkey responds significantly to both own-price and substitute price changes. The Turkish wheat price or gross return is the most important factor determining area allocation in Turkish field crops. Moreover, adopting measures that improve the growth of wheat yields also affect the substitute crops supply unless the price or gross return ratio is readjusted between substitute crops.
Tipo: Working or Discussion Paper
Palavras-chave: Supply Estimation; Field Crops Supply; Acreage System Estimation; Turkish Agriculture; Agricultural Policy Evaluation; Crop Production/Industries.
Ano: 1999
URL: http://purl.umn.edu/18607

ACT Now or Later: The Economics of Malaria Resistance
Provedor de dados: 31
Autores: Laxminarayan,   Ramanan.
In the past, malaria control efforts in sub-Saharan Africa have relied on a combination of vector control and effective treatment using chloroquine. With increasing resistance to chloroquine, attention has now turned to alternative treatment strategies to replace this failing drug. Although there are strong theoretical arguments in favor of switching to more expensive artemisinin-based combination treatments (ACTs), the validity of these arguments in the face of financial constraints has not been previously analyzed. In this paper, we use a Bioeconomic model of malaria transmission and evolution of drug resistance to examine questions of optimal treatment strategy and coverage when drug resistance places an additional constraint on choices available to the...
Tipo: Working or Discussion Paper
Palavras-chave: Malaria; Mathematical models; Drug resistance; Bioeconomics; Health Economics and Policy; I10; I19; C61.
Ano: 2003
URL: http://purl.umn.edu/10699

ACTA: Crop husbandry
Provedor de dados: 21
This part of the program (2 projects) concerns the comparison of control strategies against the thistle (Cirsium arvense (L.) Scop.) in organic crop system and researches about plants and seeds.
Tipo: Research Programme description
Palavras-chave: Crop husbandry.
Ano: 2023

Acting against common bunt: exploration of various control methods
Provedor de dados: 21
Autores: Fontaine, Laurence; Robin, N.; Bruyère, J.; du CHEYRON, P.
Common bunt (Tilletia caries, Tilletia foetida) is a fungal disease with a large ability to spread. Consequences may be rejection of grains for sale or even a large decrease of yield. Different trials were carried out in organic farming in a research project (funded by the French Ministry of Agriculture between 2008 and 2011) to achieve a better control of common bunt. Results confirm that the resistance of wheat cultivars is a factor to consider. Despite most varieties currently cultivated in organic farming are sensitive to common bunt, some cultivars appeared to be resistant to the races tested. Concerning seed treatment, no product is available for organic farming and 100% efficient; but several solutions have been identified. Only one product is...
Tipo: Journal paper
Palavras-chave: Cereals; Pulses and oilseeds Crop husbandry Crop health; Quality; Protection.
Ano: 2013
URL: http://orgprints.org/26256/1/Fontaine_2013_CIAG_Vol32.pdf

Action mechanisms involved in the bioprotective effect of Lactobacillus harbinensis K.V9.3.1.Np against Yarrowia lipolytica in fermented milk
Provedor de dados: 5
Autores: Mieszkin, Sophie; Hymery, Nolwenn; Debaets, Stella; Coton, Emmanuel; Le Blay, Gwenaelle; Valence, Florence; Mounier, Jerome.
The use of lactic acid bacteria (LAB) as bioprotective cultures can be an alternative to chemical preservatives or antibiotic to prevent fungal spoilage in dairy products. Among antifungal LAB, Lactobacillus harbinensis K.V9.3.1Np showed a remarkable antifungal activity for the bioprotection of fermented milk without modifying their organoleptic properties (Delavenne et al., 2015). The aim of the present study was to elucidate the action mechanism of this bioprotective strain against the spoilage yeast Yarrowia lipolytica. To do so, yeast viability, membrane potential, intracellular pH (pHi) and reactive oxygen species (ROS) production were assessed using flow cytometry analyses after 3, 6 and 10 days incubation in cell-free supernatants. The tested...
Tipo: Text
Palavras-chave: Lactobacillus harbinensis; Yarrowia lipolytica; Bioprotection; Antifungal; Action mechanisms; Dairy products.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00373/48390/48563.pdf

Action of Antimicrobial Copper on Bacteria and Fungi Isolated from Commercial Poultry Hatcheries
Provedor de dados: 89
Autores: Depner,RFR; Pontin,KP; Depner,RA; Flores Neto,A; Lucca,V; Lovato,M.
ABSTRACT Since 2008, when the US Environmental Protection Agency (EPA) registered copper and its alloys as an antimicrobial agent for contact surfaces, research has demonstrated their antimicrobial activity. The aim of this study was to evaluate the efficacy of antimicrobial copper against bacteria and fungi isolated from commercial poultry hatcheries in order to develop a microbiological control alternative in these environments. Samples were collected from the surfaces of hatcher baskets from two hatcheries. Mesophilic microorganisms and fungi/yeasts were isolated and standardized in concentration of 105 cells/mL. Four copper plates and four stainless steel plates were completely immersed for one minute in bacteria and fungi/yeasts solutions and left to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial copper; Hatchery; Stainless steel; Copper surfaces.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000600095

Action of Aqueous Extracts of Phyllanthus niruri L. (Euphorbiaceae) leaves on Meristematic Root Cells of Allium cepa L.
Provedor de dados: 42
Autores: NEVES,ERASMOVLANE S.B.; FERREIRA,PAULO MICHEL PINHEIRO; LIMA,LEONARDO H.G.M.; PERON,ANA PAULA.
This study aimed to evaluate the effects of aqueous extracts of dried Phyllanthus niruri L. (stonebreaker) leaves on Allium cepa L. root meristem cells at four concentrations, 0.02 (usual concentration), 0.04, 0.06 and 0.08mg/mL and exposure times of 24 and 48 hours. For each concentration we used a group of five onion bulbs that were first embedded in distilled water and then transferred to their respective concentrations. The radicles were collected and fixed in acetic acid (3:1) for 24 hours. The slides were prepared by the crushing technique and stained with 2% acetic orcein. Cells were analyzed throughout the cell cycle, totaling 5000 for each control and exposure time. The calculated mitotic indices were subjected to the Chi-squared statistical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Medicinal plant; Stonebreaker; Cell division; Cellular aberrations; Allium cepa.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301131

Action of Essential Oils on Sprouting of Non-Dormant Potato Tubers
Provedor de dados: 52
Autores: Finger,Fernando Luiz; Santos,Mirelle Mayana de Sousa; Araujo,Fernanda Ferreira; Lima,Paula Cristina Carvalho; Costa,Lucas Cavalcante da; França,Christiane de Fatima Martins; Queiroz,Matheus da Costa.
ABSTRACT The breakdown of dormancy and early sprouting is one of the main causes of losses of stored potatoes. Sprouting control becomes important especially when tubers are submitted to long-term storage for further processing by the potato industry. The objective of this work is to evaluate the effect of organic sprout inhibitors, eugenol and menthol essential oils, on the suppression of growth on non-dormant ‘Asterix’ tubers stored at 8 °C. Administration of eugenol and menthol essential oils reduced the number and the length of sprouts during cold storage up to fifty days. Nevertheless, the essential oils stimulated the break of bud apical dominance, stimulating auxiliary buds growth. The effect of the oils was restricted to inducing necrosis of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Eugenol; Menthol; Buds; Periderm.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100206

Action of pesticides to Metarhizium anisopliae in soil
Provedor de dados: 82
Autores: Mochi,Dinalva A.; Monteiro,Antonio C.; Barbosa,José C.
The present study aimed to analyze the action of some acaricides, fungicides, insecticides and herbicides containing different active ingredients on Metarhizium anisopliae Metsch. (Sorokin) inoculated into autoclaved soil. The action of the pesticides was evaluated based on the fungal respiratory activity. The first assessment was done at 48h after inoculation. The pesticides were then added and respiratory activity was determined nine times every 48h and an additional five times every 4 days. Except for the fungicides, no significant effect (P &gt; 0.05) of the pesticides on M. anisopliae was observed. A reduction in CO2 production was observed for the mancozeb treatment from day 4 to day 6 of incubation, and for tebuconazol between days 4 and 6, 8 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Entomopathogenic fungus; Integrated management; Respiratory activity.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000600013

Action of Ponceau 4R (E-124) food dye on root meristematic cells of Allium cepa L.
Provedor de dados: 3
Autores: Santana, Gleuvânia Marques; Sousa, Josefa Janaína do Anjos; Peron, Ana Paula.
This study aimed to evaluate the toxicity of Ponceau 4R food dye on the cell cycle in root meristematic cells of Allium cepa L. at three concentrations: 0.25, 0.50 and 0.75 g L-1, at exposure times of 24 and 48 hours. For each concentration, we used a set of five onion bulbs that were first rooted in distilled water and then transferred to their respective concentrations. Radicles were collected and fixed in acetic acid (3:1) for 24 hours. The slides were mounted with the crushing technique and stained with 2% acetic orcein. Cells were analyzed throughout the cell cycle, totaling 5,000 cells for each control and exposure time. The calculated mitotic indices were subjected to the Chi-square test (p &lt; 0.05). From the results, we observed that the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tecnolologia de alimentos  citogenética azo dye; Cell division; Cellular aberrations; Cytotoxicity.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/23119

Action of rain on the efficiency of herbicides applied post-emergence in the control of Senna obtusifolia
Provedor de dados: 124
Autores: Souza,Guilherme Sasso Ferreira; Martins,Dagoberto; Pereira,Maria Renata Rocha; Bagatta,Murilo Villas Boas.
The objective of this study was to evaluate the effect of rainfall on the effectiveness of herbicides applied post-emergence on plants of Senna obtusifolia. The experiment was carried out under green-house conditions and the experimental design was completely randomized design with four replications, with treatments in a 7x8 factorial arrangement (seven herbicides treatments and eight rain intervals). The herbicides used were five formulations of glyphosate (Roundup Original, Roundup WG, Roundup Transorb, Roundup Transorb R and Roundup Ultra) applied at a rate of to 1,080 g a.e. ha-1, glufosinate-ammonium (Finale) at 400 g a.i. ha-1 and 2,4-D (DMA 806) at 1,000 g a.e. ha-1. The rain simulation occurred at intervals of 15; 30; 60; 120; 240, 360, and 480...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glufosinate-ammonium Sicklepod Glyphosate Weed 2; 4-D.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000300016

Action of the extracts of Pluchea sagittalis on the absorptive characteristics of the gastrointestinal tract
Provedor de dados: 52
Autores: Burger,Marilise E.; Baldisserotto,Bernardo; Teixeira,Elisângela P.; Soares,Joceana.
Pluchea sagittalis (Lam.) Cabrera, (quitoco or erva lucera) is commonly used to treat digestive disorders in Southern Brazil and countries of the South Cone. The crude aqueous extracts from the leaves, stalks or flowers were used in acute oral toxicity in mice and in pharmacological studies to determine the gastrointestinal transport of water, sodium, and potassium in rats. The oral administration of 5000 mg/kg of extracts examined did not produce signs of intoxication nor induce the death of any mice during the period of 14 days. The extracts from the leaves and stalk have reduced the absorption of water in the jejunum and jejunum and ileum, respectively with relation to the control. There was an absorption of sodium with the administration of these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pluchea; Ion transport; Gastrointestinal tract absorption; Acute toxicity.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100012

Action of Trivalent Chromium on Rat Liver Structure. Histometric and Haematological Studies
Provedor de dados: 77
Autores: Silva,Rogério Ferreira da; Lopes,Ruberval A; Sala,Miguel A; Vinha,Dionísio; Regalo,Simone C. H.; Souza,Ana Maria de; Gregório,Zita Maria de O.
The trace mineral trivalent chromium (Cr3+) is an essential nutrient involved in the regulation of carbohydrate, lipid and protein metabolism via an enhancement of insulin action. The present work had as objective to characterize histopathologically and histometrically the hepatic alterations of female Wistar rats, determined by the chromium III administration in drinking water. Adult rats received ration and drinking water ad libitum containing 300 or 500 mg/l chromium III during 4 months. Control animals received only water and ration. All animals were sacrificed by lethal dose of anesthetic. Samples of liver were fixed in 10% formalin for 24 h. Tissues for microscopical pathology were processed using standard procedures. Paraffin sections prepared at 6...
Tipo: Journal article
Palavras-chave: Liver; Rat; Chromium; Morphometry; Hematology.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000300014

Action of two endocrine disrupters on the sexual differenciation of Nile tilapia
Provedor de dados: 124
Autores: Passos Neto,Oscar Pacheco; Santos,André Bezerra dos; Silva,José Roberto Feitosa; Mota,Suetônio Bastos.
ABSTRACT Endocrine disruptors are exogenous substances that can impair one or more functions of the endocrine system and cause adverse effects to the health of an intact organism. The main goal of this study was to evaluate the effect of the endocrine disruptors 17β-estradiol (E2) and 17α-ethinyl estradiol (EE2) on the sexual differentiation of Nile tilapia during spawning. Six treatments and one control with three replications, totalizing 21 experimental units, were assessed in a completely randomized design. Hormones were dosed at concentrations of 250, 500, and 1,000 ng L−1 (treatments E2-250, E2-500, E2-1,000, EE2-250, EE2-500, and EE2-1,000). Exposure to hormones occurred during the first 28 days of life. After this period, water was completely...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emerging pollutants; Oreochromis niloticus; 17α-ethinylestradiol; 17β-estradiol.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300402

Actions of Crotalus durissus terrificus venom and crotoxin on the isolated rat kidney
Provedor de dados: 56
Autores: Monteiro,H.S.A.; Silva,I.M.S.C. da; Martins,A.M.C.; Fonteles,M.C.
Many studies have reported the occurrence of lethal acute renal failure after snakebites. The aim of the present investigation was to determine alterations in renal function produced by Crotalus durissus terrificus venom and crotoxin as well as the histological alterations induced by these venoms. Isolated kidneys from Wistar rats weighing 240 to 280 g were perfused with Krebs-Henseleit solution containing 6 g% of previously dialyzed bovine serum albumin. The effects of Crotalus durissus terrificus venom and crotoxin were studied on glomerular filtration rate (GFR), urinary flow (UF), perfusion pressure (PP) and percentage sodium tubular transport (%TNa+). The infusion of Crotalus durissus terrificus venom (10 µg/ml) and crotoxin (10 µg/ml) increased GFR...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crotalus durissus terrificus venom; Crotoxin; Kidney.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001000017

Actions of crude hydroalcoholic extract of Pfaffia sp on gastrointestinal tract
Provedor de dados: 52
Autores: Freitas,Cristina Setim; Paula,Maria Fernanda Rodrigues de; Rieck,Lia; Marques,Maria Consuelo Andrade.
The plants that compound the Pfaffia genus are used in folk medicine to treat gastric disturbances. This study examined the effects of a crude hydroalcoholic extract of Pfaffia sp on the gastrointestinal tract. Female Wistar rats were pretreated orally (p.o.) with the hydroalcoholic extract of Pfaffia (0.5, 1 and 2 g.kg-1) before the induction of ulcer with hypothermic restraint stress (HRS), ethanol (ET) or indomethacin (IND). Control animals received water (C) or ranitidine (60mg/kg) p.o. The hydroalcoholic extract of Pfaffia (0.5, 1 and 2 mg.kg-1) protected rats against HRS and ET - induced ulcers, but was not able to protect the gastric mucosa against IND - induced ulcers. When injected into the duodenal lumen, the hydroalcoholic extract of Pfaffia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pfaffia; Amaranthaceae; Ulcers; Acid secretion.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000300007

Actions of sex steroids on kisspeptin expression and other reproduction-related genes in the brain of the teleost fish European sea bass
Provedor de dados: 5
Autores: Alvarado, M. V.; Servili, Arianna; Moles, G.; Gueguen, M.m.; Carrillo, M.; Kah, O.; Felip, A.
Kisspeptins are well known as mediators of the coordinated communication between the brain-pituitary axis and the gonads in many vertebrates. To test the hypothesis that gonadal steroids regulate kiss1 and kiss2 mRNA expression in European sea bass (a teleost fish), we examined the brains of gonad-intact (control) and castrated animals, as well as castrated males (GDX) and ovariectomized females (OVX) that received testosterone (T) and estradiol (E2) replacement, respectively, during recrudescence. In GDX males, low expression of kiss1 mRNA is observed by in situ hybridization in the caudal hypothalamus (CH) and the mediobasal hypothalamus (MBH), although hypothalamic changes in kiss1 mRNA levels were not statistically different among the groups, as...
Tipo: Text
Palavras-chave: Kiss1/kiss2; Gnrh-1/gonadotropin; Feedback action; Sex steroid; Hypothalamus; Perciform.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00359/47009/46969.pdf

Activation of endogenous angiotensin converting enzyme 2 prevents early injuries induced by hyperglycemia in rat retina
Provedor de dados: 56
Autores: Foureaux,G.; Nogueira,B. S.; Coutinho,D. C. O.; Raizada,M. K.; Nogueira,J. C.; Ferreira,A. J.
Diabetic retinopathy (DR) is a serious complication of diabetes mellitus that may result in blindness. We evaluated the effects of activation of endogenous angiotensin converting enzyme (ACE) 2 on the early stages of DR. Rats were administered an intravenous injection of streptozotocin to induce hyperglycemia. The ACE2 activator 1-[[2-(dimethylamino) ethyl] amino]-4-(hydroxymethyl)-7-[[(4-methylphenyl) sulfonyl] oxy]-9H-xanthone 9 (XNT) was administered by daily gavage. The death of retinal ganglion cells (RGC) was evaluated in histological sections, and retinal ACE2, caspase-3, and vascular endothelial growth factor (VEGF) expressions were analyzed by immunohistochemistry. XNT treatment increased ACE2 expression in retinas of hyperglycemic (HG) rats...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ACE2 activation; Angiotensin-(1-7); Renin-angiotensin system; Eyes; Diabetic retinopathy.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015001201109

Activation of Prophenoloxidase and Removal of Bacillus subtilis from the Hemolymph of Acheta domesticus (L.) (Orthoptera: Gryllidae)
Provedor de dados: 82
Autores: SILVA,CLEONOR C.A. DA.
Insect phenoloxidase is considered an important mediator in defense reaction against pathogens and parasites. It is present in the hemolymph of most insects as an inactive proenzyme, called prophenoloxidase. In Acheta domesticus (L.) the phenoloxidase activity was studied in the presence of Bacillus subtilis. The bacteria induced the activation of the prophenoloxidase and increased the level of phenoloxidase activity when injected into the hemocoel of A. domesticus nymphs. The level of increase was comparable to those observed in nymphs injected with laminarin, an activator of the proenzyme. Incubating B. subtilis in serum with phenoloxidase activated in vitro and then injecting into the insects accelerated the removal of the bacteria from the hemolymph in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemolynph; Phenoloxidase; Hemocyte; Defense reaction.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2002000300024

Active caspase-3 expression levels as bioindicator of individual radiosensitivity
Provedor de dados: 42
Autores: SANTOS,NEYLIANE F.G. DOS; SILVA,RAFAEL F.; PINTO,MARCELA M.P.L.; SILVA,EDVANE B. DA; TASAT,DEBORAH R.; AMARAL,ADEMIR.
ABSTRACT Several molecules and events involved in cell response to radiation-induced damage have been investigated towards a personalized radiotherapy. Considering the importance of active caspase-3 in the proteolytic cascade that ensures radiation-induced apoptosis execution, this research was designed to evaluate the expression levels of this protein as a bioindicator of individual radiosensitivity. Peripheral blood samples of 10 healthy individuals were gamma-irradiated (cobalt-60 source) with 1, 2 and 4 Gy (control: non-irradiated samples), and active caspase-3 expression levels were measured in lymphocytes, by flow cytometry, ex vivo and after different times of in vitro incubation (24, 48 and 72 hours). Short-term incubation of 24 h was the most...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Active caspase-3; Apoptosis; Flow cytometry; Ionizing radiation; Lymphocytes.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200649

Active modified atmosphere storage to preserve the quality of 'San Andreas' strawberries harvest at two ripening stages
Provedor de dados: 94
Autores: Anami,Jéssica Mayumi; Steffens,Cristiano André; Moreira,Marcelo Alves; Fernandes,Raquel Carlos; Mosquera,Deysi Jhoana Camayo; Amarante,Cassandro Vidal Talamini do.
Abstract  This work was carried out to evaluate the effect of fruit ripening stage at harvest (“1/3 ripe” and “3/4 ripe”, respectively with 30% and 75% of red color) and passive modified atmosphere (MA) and active MA (with initial initial low O2 and/or high CO2) on quality of ‘San Andreas’ strawberries, with emphasis on bioactive compounds and metabolites of fermentative metabolism. The treatments evaluated were: control; passive MA [low density polyethylene (LDPE) packaging of 40 µm]; active MA with initial low O2 (1 kPa); active MA with initial high CO2 (30 kPa); and active MA with initial low O2 (1 kPa) and high CO2 (30 kPa). After 14 days of storage (0.5±0.2°C/92±2% RH) followed by two days of shelf life (20±5°C/65±10% RH), fruit weight loss was higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria ananassa; High CO2; Low O2; Texture; Phenolic compounds; Fermentative metabolism; Decay; Fruit quality.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000100301

ACTIVIDAD ANTAGÓNICA FRENTE A Pyricularia grisea (Sacc.) Y FITOESTIMULACIÓN EN EL CULTIVO DEL ARROZ DE CEPAS AUTÓCTONAS DE Pseudomonas putida (Trev.)
Provedor de dados: 100
Autores: Rives,Narovis; Acebo,Yanelis; Almaguer,M; García,J.C; Hernández,Annia.
La aplicación de inoculantes de origen bacteriano en cultivos de importancia económica, constituye una alternativa ecológica que permite la obtención de mayores rendimientos y la conservación del medio ambiente. La obtención y caracterización de cepas autóctonas, potencialmente eficientes en la promoción del crecimiento vegetal y el control biológico de patógenos constituye un paso esencial para el desarrollo de inoculantes microbianos. Esta investigación se desarrolló con el objetivo de caracterizar cepas de Pseudomonas putida previamente aisladas del cultivo del arroz variedad J-104 en cuanto a su actividad promotora del crecimiento vegetal y su efecto antagónico frente a Pyricularia grisea. Se realizaron experimentos in vitro para detectar la producción...
Tipo: Journal article
Palavras-chave: Arroz; Pseudomonas putida; Pyricularia grisea; Promoción del crecimiento; Actividad antagónica.
Ano: 2009
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522009000200006

Actividad antagónica in vitro de Tsukamurella paurometabola C-924 frente a fitopatógenos
Provedor de dados: 100
Autores: Marín,Marieta; Wong,Idania; García,Graciela; Morán,Rolando; Basulto,Rosa; Pimentel,Eulogio; Mena,Jesús.
El objetivo de este trabajo fue determinar las potencialidades de Tsukamurella paurometabola cepa C-924 como agente de control biológico de hongos fitopatógenos. Se evaluó el efecto de la bacteria sobre siete especies de hongos fitopatógenos a través de ensayos in vitro utilizando los medios Agar Triptona Soya (ATS) y Agar Papa Dextrosa (PDA). La actividad antagónica se determinó cada 24 horas midiendo el diámetro de las colonias de los hongos en presencia de la bacteria, determinando posteriormente los porcentajes de inhibición del crecimiento micelial con relación al control. Se evidenció que T. paurometabola C-924 tuvo actividad antagónica en ambos medios. Los mayores valores de inhibición se produjeron en el medio ATS, sobre Alternaria longipes (Ellis...
Tipo: Journal article
Palavras-chave: Alternaria longipes; Bipolaris oryzae; Colletotrichum gloeosporioides; Fusarium oxysporum f. sp. cubense; Pestalotia palmarum; Thielaviopsis paradoxa; Pythium debaryanum; Antagonismo.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522013000200006

Actividad antagonista de bacterias lácticas aisladas del medio marino contra cepas de Listeria
Provedor de dados: 38
Autores: Marguet,Emilio Rogelio; Vallejo,Marisol; Sierralta Chichisola,Verónica; Quispe,Jorge León.
En el presente trabajo se estudiaron 74 bacterias lácticas para determinar su capacidad de inhibir el desarrollo de Listeria monocytogenes ATCC 7644 o L. innocua ATCC 33090. Dentro de las 7 que exhibieron actividad, 2 se seleccionaron para estudios complementarios y se identificaron por métodos fenotípicos y genotípicos como Enterococcus mundtii Tw 56 y Lactococcus lactis subsp. lactis Tw 34. Después de la neutralización con NaOH y tratamiento térmico (100 ºC y 121 ºC durante 5 min) la actividad antagonista del sobrenadante libre de células se mantuvo activa. El tratamiento con lisozima, lipasa y catalasa no afectó la actividad antimicrobiana. Sin embargo, la actividad enzimática de la tripsina suprimió la acción inhibitoria del sobrenadante, confirmando...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterias lácticas; Listeria monocytogenes; Bacteriocinas; Ambiente marino.
Ano: 2011
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572011000200008

Actividad antifúngica e identificación molecular de cepas nativas de Bacillus subtilis
Provedor de dados: 115
Autores: Ruiz-Sánchez,Esaú; Mejía-Bautista,Miguel Ángel.; Serrato-Díaz,Alejandra; Reyes-Ramírez,Arturo; Estrada-Girón,Yokiushirdhilgilmara; Valencia-Botín,Alberto J.
Resumen: La bioprospección de bacteria antagónicas, como agentes de control biológico para el manejo de hongos fitopatógenos, es una actividad preponderante para reducir el uso de fungicidas químicos. La bacteria Bacillus subtilis ha mostrado una excelente capacidad para inhibir el crecimiento y esporulación de una gama amplia de hongos fitopatógenos. Las características bioquímicas para diferenciar entre subespecies de B. subtilis varían a nivel regional. En esta investigación se aislaron cepas de Bacillus de la Península de Yucatán en México y se evaluaron sus actividades antagónicas por confrontación directa en un diseño completamente al azar. Para identificar las cepas más activas se realizó una caracterización molecular. Para una identificación...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus subtilis; Biocontrol; Secuencia gen-proteína; DNA girasa; RNA polimerasa.
Ano: 2016
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952016000200133

ACTIVIDAD ANTIFÚNGICA in vitro DE LAS QUITOSANAS k1 y SIGMA FRENTE A Bipolaris oryzae (B. de Haan) Shoem.
Provedor de dados: 100
Autores: Deyanira,Rivero; Cruz,A; Martínez,B; Rodríguez,Aida T; Ramírez,MA.
Con el objetivo de determinar la actividad antifúngica de la quitosana sobre Bipolaris oryzae, patógeno de mayor incidencia en el síndrome del manchado del grano de arroz y agente causal de la enfermedad de la mancha parda de la hoja, se estudió el efecto in vitro de diferentes concentraciones (300, 500, 700 y 1000 mg/L) de las quitosanas K1 (INCA) y SIGMA sobre el crecimiento micelial del hongo. Para ello se midió el diámetro de las colonias a los 3, 4, 5, 6 y 7 días, y se calculó el porcentaje de inhibición del crecimiento del hongo, con respecto al control no tratado. Para los tratamientos que mostraron total inhibición se determinó el efecto fungicida. Los resultados indicaron que ambos productos tienen un efecto inhibidor del crecimiento del hongo a...
Tipo: Journal article
Palavras-chave: Quitosana; Bipolaris oryzae; Actividad antifúngica.
Ano: 2008
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522008000100008

Actividad antihelmíntica in vitro de extracto acuoso de hojas y semillas de Neem (Azadirachta indica A. Juss). I. Inhibición de la eclosión de huevos y del desarrollo larvario
Provedor de dados: 101
Autores: Barrabí-Puerta,Mireisy; Arece-García,Javier.
Con el objetivo de evaluar la actividad antihelmíntica in vitro de extractos acuosos de hojas y semillas de Neem (A. indica) se diseñó un experimento que estudió el efecto de la adición del extracto acuoso en la eclosión de huevecillos y el desarrollo larvario de estrongílidos gastrointestinales. Se prepararon tres concentraciones de extractos acuosos (500, 250 y 125 mg/ml) a partir de hojas y semillas secadas a la sombra. Se realizó una prueba in vitro de eclosión de huevecillos y otra de inhibición del desarrollo larvario. El extracto de semilla fue más efectivo pues en dosis de 500 mg/ml logró reducir la eclosión de huevecillos en un 99.1% sin diferencias significativas (p&lt;0.01) con el Albendazol y en un 88.8% el desarrollo de las larvas hacia L3....
Tipo: Journal article
Palavras-chave: Azadirachta indica; Neem; Haemonchus; Ovinos; In vitro.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2013000200005

Actividad antioxidante in vitro de extractos de tallos de Polygala sp.
Provedor de dados: 98
Autores: Puertas-Mejía,Miguel A; Ríos-Salazar,Jhon D; Sáez-Vega,Jairo A.
INTRODUCCIÓN: desde hace mucho tiempo, el empleo de extractos naturales con propiedades terapéuticas ha sido de gran importancia para el control de muchas enfermedades en humanos y plantas. Desde el punto de vista medicinal se encuentran bajo estudio algunos reportes sobre la actividad biológica de la especie Polygala sp. Lo anterior permite suponer que esta planta puede ser una fuente promisoria de compuestos con una alta actividad antioxidante. OBJETIVO: aislar, identificar y evaluar la actividad antioxidante de extractos y algunos de sus componentes. MÉTODOS: tallos secos y pulverizados de Poygala sp. fueron sometidos a percolación con metanol y diclorometano; sus respectivos extractos se sometieron a cromatografía en columna y 2 compuestos fueron...
Tipo: Journal article
Palavras-chave: Polygala sp; Antioxidantes naturales; Ensayo DPPH; Peltatina; Ciclolignanos.
Ano: 2009
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962009000400005

Actividad antitumoral de extractos de plantas de la flora cubana frente a la Leucemia Linfocítica P-388
Provedor de dados: 98
Autores: Colom Loo,Yamila; Azcue Ferrera,Mairelys; Pérez Gil,Rita M; RespallRobledo,Mabel; Ruiz García,Relman; Quesada Cepero,Waldo.
La búsqueda de compuestos naturales con actividad antineoplásica es una de las prioridades actuales en la lucha contra el cáncer, en todos los países del mundo. El creciente empleo de la medicina verde en la prevención y cura de diferentes enfermedades ha llevado a la evaluación antitumoral de nuevos extractos de plantas, principalmente pertenecientes a la flora autóctona de cada país. En el presente trabajo se evaluó la actividad antitumoral de 27 extractos obtenidos de plantas de la flora cubana en el tumor señal murino Leucemia Linfocítica P-388 trasplantado en ratones B2D6F1. Los animales recibieron tratamiento durante 9 días por vía intraperitoneal. En todos los casos se determinó el aumento del tiempo de sobrevida respecto al grupo control negativo,...
Tipo: Journal article
Palavras-chave: Actividad antitumoral; Cáncer; Extracto de plantas; Tumor señal murino P-388.
Ano: 2005
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962005000200008

ACTIVIDAD BIOCONTROLADORA IN VITRO DE MACROHONGOS CONTRA DIFERENTES HONGOS FITOPATÓGENOS
Provedor de dados: 37
Autores: PATINO,Manuel; NIETO-RAMIREZ,Ivonne Jeannette; CHEGWIN-ANGARITA,Carolina; TORRES-ROJAS,Esperanza.
RESUMEN Las enfermedades causadas por hongos en las plantas son una gran preocupación en la producción agrícola. Los macromicetos son una fuente potencial de compuestos antifúngicos que podrían usarse para controlar estas enfermedades. El objetivo de este estudio fue evaluar la actividad biocontroladora in vitro de cuatro macromicetos de los géneros Xylaria, Agrocybe, Psilocybe y Stereum sobre diferentes hongos fitopatógenos. Para ello, se determinó la curva de crecimiento de los macrohongos en dos medios: papa dextrosa (PDA) y salvado de trigo (ST) y se caracterizaron las interacciones y la inhibición in vitro de hongos fitopatógenos. Se realizó la extracción y caracterización de metabolitos secundarios de la biomasa, el medio extracelular y del...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonismo; Cinética del crecimiento; Cultivo dual; Metabolitos secundarios; Parasitismo.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200265

Actividad biológica de extractos de Melia azedarach sobre larvas de Spodoptera eridania (Lepidoptera: Noctuidae)
Provedor de dados: 99
Autores: Rossetti,María R.; Defagó,María T.; Carpinella,María C.; Palacios,Sara M.; Valladares,Graciela.
En la búsqueda de compuestos botánicos con potencial uso insecticida, se evaluó la actividad de extractos de fruto maduro y hojas senescentes de Melia azedarach L. (2, 5 y 10%), sobre larvas de Spodoptera eridania Cramer (Lepidoptera: Noctuidae) especie polífaga considerada plaga esporádica de importantes cultivos. Mediante pruebas de elección, se registró el consumo y se calculó un índice de inhibición alimentaria. En pruebas sin posibilidad de elección se estimó el consumo, la mortalidad, el peso de larvas y excretas, y se calcularon índices nutricionales. Cuando las larvas pudieron optar, se observó un fuerte efecto antialimentario de los extractos. En los ensayos de alimentación obligada, los extractos de fruto y hoja redujeron fuertemente el consumo y...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecticidas botánicos; Melia azedarach; Spodoptera eridania; Actividad antialimentaria; Índices nutricionales.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802008000100011

Actividad de enzimas del estrés oxidativo en plantas de tomate cv. Amalia en respuesta al plomo
Provedor de dados: 75
Autores: Machín Suárez,Alianna; Sánchez-Chávez,Esteban; Héctor Ardisana,Eduardo F; Santos-Cervantes,María E; Pérez Álvarez,Sandra.
RESUMEN La contaminación de los suelos por metales pesados es un resultado de la actividad humana, agricultura e industria. Entre los metales pesados el plomo es un contaminante potencial que en las plantas ocasiona numerosos síntomas de toxicidad como por ejemplo, crecimiento atrofiado, ennegrecimiento del sistema radical y clorosis generalizada. La actividad de las enzimas superóxido dismutasa (SOD; EC 1.15.1.1) y glutatión reductasa (GR; EC 1.8.1.7) se determinaron en hojas y tallos de plantas de tomate cv. Amalia utilizando tres concentraciones de plomo (PbAc2) (0, 50 y 100 mg/kg). Las plantas de tomate se sembraron en el periodo de septiembre-diciembre del 2010 en condiciones de invernadero, las aplicaciones del metal se realizaron dos veces por...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Metales pesados superóxido dismutasa; Glutatión reductasa; Isoenzimas.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000200216

Actividad de polvo, extractos y aceite esencial de Peumus boldus Molina solos y en mezcla con Bacillus thuringiensis Berliner contra Spodoptera frugiperda (J.E. Smith) y Helicoverpa zea (Boddie).
Provedor de dados: 32
Autores: Silva Aguayo, Gonzalo Iván.
Se evaluaron en condiciones de laboratorio e invernadero las propiedades insecticidas del polvo, aceite esencial y extracto en cloruro de metileno de Boldo (Peumus boldus Molina), además del alcaloide boldina y el terpeno 1-8-cineol (eucaliptol), solos y en combinación con Bacillus thuringiensis Berliner contra larvas de Spodoptera frugiperda (J.E. Smith) y Helicoverpa zea Boddie. Se realizaron bioensayos para evaluar mortalidad, efecto en el ciclo de vida y las preferencias alimenticias de larvas neonatas y de tercer instar e inhibición de la alimentación y oviposición. El diseño experimental fue de bloques completos al azar con 7 tratamientos y 20 repeticiones. La mayor toxicidad se manifestó con el extracto que a una concentración de 8% tuvo una...
Palavras-chave: Gusano cogollero; Gusano elotero; Monoterpenos; Insecticidas vegetales; Cry1Aa; Cry1Ac; Fall armyworm; Corn armyworm; Monoterpenes; Botanical insecticides; Doctorado; Entomología y Acarología.
Ano: 2010
URL: http://hdl.handle.net/10521/201

Actividad de polvo, extractos y aceite esencial de Peumus boldus Molina solos y en mezcla con Bacillus thuringiensis Berliner contra Spodoptera frugiperda (J.E. Smith) y Helicoverpa zea (Boddie).
Provedor de dados: 32
Autores: Silva Aguayo, Gonzalo Iván.
Se evaluaron en condiciones de laboratorio e invernadero las propiedades insecticidas del polvo, aceite esencial y extracto en cloruro de metileno de Boldo (Peumus boldus Molina), además del alcaloide boldina y el terpeno 1-8-cineol (eucaliptol), solos y en combinación con Bacillus thuringiensis Berliner contra larvas de Spodoptera frugiperda (J.E. Smith) y Helicoverpa zea Boddie. Se realizaron bioensayos para evaluar mortalidad, efecto en el ciclo de vida y las preferencias alimenticias de larvas neonatas y de tercer instar e inhibición de la alimentación y oviposición. El diseño experimental fue de bloques completos al azar con 7 tratamientos y 20 repeticiones. La mayor toxicidad se manifestó con el extracto que a una concentración de 8% tuvo una...
Palavras-chave: Gusano cogollero; Gusano elotero; Monoterpenos; Insecticidas vegetales; Cry1Aa; Cry1Ac; Fall armyworm; Corn armyworm; Monoterpenes; Botanical insecticides; Doctorado; Entomología y Acarología.
Ano: 2010
URL: http://hdl.handle.net/10521/201

Actividad diurética de extractos acuosos de Polylepis australis Bitter (queñoa)
Provedor de dados: 98
Autores: Daud Thoene,Adriana; Habib Intersimone,Natalia; Sánchez Riera,Alicia.
El objetivo del presente trabajo es realizar un estudio experimental en ratas Wistar con el fin de analizar la actividad diurética de extractos acuosos de hojas y corteza de queñoa, Polylepis australis Bitter, administrados por vía oral. Se demostró el efecto diurético de los extractos en las dosis de 200 y 400 mg/kg presentando mayor acción, actividad diurética y salurética frente al grupo control y a la furosemida (20 mg/kg). Se analizó la relación Na+/K+ y se observó un incremento frente al control negativo e inferior frente al diurético de referencia, lo que sugeriría que los extractos acuosos de hojas y corteza de queñoa podrían actuar como diuréticos tiazídicos, los cuales aumentan los niveles urinarios de K+ alterando la relación Na+/K+. Los...
Tipo: Journal article
Palavras-chave: Diurético; Polylepis australis; Plantas medicinales; Furosemida.
Ano: 2007
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962007000400007

Actividad diurética de una decocción de Costus pictus D. Don.
Provedor de dados: 98
Autores: Pérez Machín,Maykel; Sueiro Oyarzun,Mario L.; Boffill Cárdenas,María; Morón Rodríguez,Francisco; Victoria Amador,María del Carmen; Monteagudo Jiménez,Emilio E.; Lorenzo Monteagudo,Geidy.
INTRODUCCIÓN: Costus pictus D. Don. (caña mexicana) es una especie cultivada como ornamental en Cuba y la decocción de sus hojas se emplea tradicionalmente para afecciones urinarias como infecciones, litiasis y cólicos renales. OBJETIVO: evaluar la actividad diurética de la decocción de hojas de C. pictus. MÉTODOS: se elaboró una decocción con hojas secas al 30 % y se administró a ratas machos Wistar a dosis de 200, 400 y 800 mg de sólidos totales/kg. El volumen fue completado con solución salina fisiológica para lograr una sobrecarga hidrosalina con un volumen total de administración constante de 40 mL/kg, tanto para los grupos tratados como para el control positivo (furosemida, 20 mg/kg) y control negativo (cloruro de sodio, 0,9 %). Se midieron los...
Tipo: Journal article
Palavras-chave: Costus pictus; Plantas medicinales; Diurético; Ratas.
Ano: 2010
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962010000200002

Actividad diurética del extracto metanólico de hojas de maracuyá (Passiflora edulis Sims) en ratas
Provedor de dados: 98
Autores: Rojas Armas,Juan; Arroyo Acevedo,Jorge; Alfonso Valiente,María Antonia.
INTRODUCCIÓN: Passiflora edulis Sims (maracuyá) se usa ampliamente en la medicina tradicional de muchos países del mundo para el tratamiento de diversas enfermedades, de la cual se ha demostrado científicamente su efecto antitumoral, antiinflamatorio y antihipertensivo; sin embargo, no existen estudios preclínicos que demuestren el efecto diurético y validen su uso. OBJETIVO: determinar la actividad diurética del extracto metanólico de hojas de P. edulis en ratas. MÉTODOS: se utilizaron 20 ratas Holtzman que se designaron a 4 grupos (n= 5). Previo ayuno de 18 h, todas las ratas fueron hidratadas con 5 mL/100 g de solución salina fisiológica. El grupo 1 recibió 5 mL/kg de solución salina fisiológica (control negativo); el grupo 2 recibió furosemida en dosis...
Tipo: Journal article
Palavras-chave: Passiflora edulis; Maracuyá; Diurético.
Ano: 2009
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962009000400004

Actividad espasmolítica de una tintura de Melissa officinalis L. en modelos experimentales
Provedor de dados: 98
Autores: Ruiz Salvador,Ana Karelia; Paz Naranjo,José de la; García Milián,Ana Julia; Sebazco Pernas,Caridad; Carrazana Lee,Armando; Pereira Relis,Elizabeth.
Se realizaron 3 experimentos con el objetivo de validar la propiedad espasmolítica de la Melissa officinalis L., descrita por la medicina popular. El primero, in vitro, consistió en la evaluación de la respuesta de la Melissa en íleon aislado de cobayo, frente a las contracciones inducidas por diferentes espasmógenos. Un experimento in vivo evaluó la actividad del tránsito intestinal en ratones y en el otro se aplicó un modelo de diarreas en ratas. En todos los modelos se utilizó etanol como menstruo. Se empleó papaverina como control positivo. La Melissa officinalis mostró acción antiespasmódica en los 3 estudios realizados.
Tipo: Journal article
Palavras-chave: Antiespasmódico; Espasmolítico; Melissa officinalis L.
Ano: 2004
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962004000300003

Actividad in vitro de Bacillus spp. en la inhibición de crecimiento micelial de Fusarium equiseti Y Fusarium solani aislado de chile habanero (Capsicum chinense Jacq.)
Provedor de dados: 115
Autores: Mejía-Bautista,Miguel A.; Cristóbal-Alejo,Jairo; Tun-Suárez,José M.; Reyes-Ramírez,Arturo.
Resumen Fusarium puede inducir marchitez en chile habanero (Capsicum chinense Jacq.), con frecuencia está en el suelo y en especies diversas y el uso de fungicidas sistémicos es común para su control. Esta enfermedad demanda investigación enfocada a disminuir el uso de fungicidas que propician la permanencia de poblaciones resistentes de fitopatógenos y contaminan el ambiente. Las especies de Bacillus antagonistas son una alternativa para el control de fitopatógenos, como Fusarium spp., causantes de etiologías fúngicas en cultivos como el chile habanero. El objetivo de este estudio fue evaluar la actividad in vitro de Bacillus spp. en la inhibición del crecimiento micelial de Fusarium equiseti y F. solani, causantes de la marchitez en chile habanero, en...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus; Fusarium; Antagonista; Fitopatógenos; Lipopéptidos.
Ano: 2016
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952016000801123

Actividad in vitro del extracto acuoso del Bonellia flammea contra hongos fitopatógenos
Provedor de dados: 115
Autores: Moo-Koh,F. Amalia; Cristóbal Alejo,J.; Reyes-Ramírez,Arturo; Tun-Suárez,J. María; Sandoval-Luna,Ruth; Ramírez-Pool,J. Abrahán.
Las enfermedades causadas por hongos en las plantas disminuyen la calidad y el rendimiento de los cultivos; el control de estas enfermedades demanda investigación enfocada a reducir el uso de los fungicidas sintéticos, los cuales generan resistencia de cepas y contaminación al medio ambiente. El extracto acuoso de Bonellia flammea es una alternativa natural de control ya que actúa como fungicida. El objetivo del presente estudio fue evaluar in vitro el efecto del extracto acuoso de B. flammea contra siete hongos fitopatógenos. El diseño experimental fue completamente al azar, los tratamientos fueron cada hongo expuesto al extracto y el hongo sin extracto, la unidad experimental fueron cuatro cajas petri, con cuatro repeticiones, los datos se analizaron...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inhibición; Control; Fungosis; PCR.
Ano: 2014
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952014000800006

Actividad inhibitoria del aceite esencial de Lippia origanoides H.B.K sobre el crecimiento de Phytophthora infestans
Provedor de dados: 109
Autores: Arango Bedoya,óscar; Hurtado Benavides,Andrés Mauricio; Pantoja Daza,Diana; Santacruz Chazatar,Lorena.
Phytophthora infestans (Mont.) de Bary es el fitopatógeno más perjudicial de la papa (Solanum tuberosum) al causar la enfermedad conocida como ‘gota o tizón tardío’. El objetivo de este trabajo fue evaluar la actividad in vitro del aceite esencial obtenido de una especie de orégano silvestre (Lippia origanoides H.B.K.) sobre Phytophthora infestans. Para el efecto se evaluaron diferentes concentraciones de este aceite esencial (10, 50, 100, 150, 200, 250 µg/ml) y de un fungicida comercial usado como testigo. La actividad antifúngica se determinó con base en la evaluación del crecimiento del micelio mediante el método de dilución en agar tomate. A partir de una concentración de aceite de 150 µg/ml se inhibió completamente el crecimiento del patógeno, por lo...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aceite esencial; Orégano; Lippia origanoides; Actividad antifúngica; Phytophthora infestans.
Ano: 2015
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122015000200003

Actividad insecticida de una emulsión aceite/agua del aceite esencial de Eucalyptus tereticornis
Provedor de dados: 98
Autores: Murillo-Arango,Walter; Araque Marín,Pedronel; Henao Murillo,Beatriz; Peláez Jaramillo,Carlos A.
Introducción: el aceite esencial extraído de especies del género Eucalyptus, entre estas Eucalyptus tereticornis, ofrece un importante potencial para el control de hongos patógenos e insectos plaga y de importancia médica. Objetivo: evaluar la actividad anti-insecto (aguda, crónica y repelente) de una emulsión aceite/agua del aceite esencial de Eucalyptus tereticornis, en función de su composición química y fraccionamiento. Métodos: se prepararon emulsiones aceite/agua con aceite esencial previamente extraído, separado y caracterizado, y 2 de sus fracciones (A y B). Se evaluó su actividad anti-insecto mediante bioensayos con Drosophila melanogaster. Se determinó la fitotoxicidad foliar sobre plántulas de Phaseolus vulgaris. Resultados: el aceite completo...
Tipo: Journal article
Palavras-chave: Eucalyptus tereticornis; Aceites esenciales; Actividad anti-insecto; Emulsiones aceite/agua.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962013000100013

Actividad insecticida del aceite esencial de Lepechinia chamaedryoides (Balb.) Epling en Drosophila melanogaster
Provedor de dados: 73
Autores: SUAZO F,GONZALO; GONZÁLEZ M,FlDELINA; URBINA P,ANGÉLICA; PASTENE N,EDGAR; SÁEZ C,KATIA; SERRI G,HUMBERTO; CHÁVEZ E,RUTH.
Se evaluó el efecto insecticida de tres extractos de la planta endémica de Chile, Lepechinia chamaedryoides (Balb.) Epling (extracto polar, exudado resinoso y aceite esencial), sobre larvas del díptero Drosophila melanogaster Meigen con el fin de determinar cuál o cuáles de éstos poseen actividad biológica insecticida. El bioensayo se realizó sobre la base de un diseño experimental completamente aleatorio, con 15 tratamientos y tres repeticiones, que contempló el estudio de variables de mortalidad y de concentración letal 50 % (CL50) y 90 % (CL90), y observación de organismos mediante lupa, microscopía óptica y microscopía electrónica de transmisión. Se registró una mortalidad mayor al 90 % en cuatro concentraciones evaluadas del aceite esencial. En el...
Tipo: Journal article
Palavras-chave: Efecto insecticida; Bioensayo; Plantas nativas; Aceite esencial.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432012000200005

Actividad insecticida del aceite esencial de Lippia alba (Mill.) N. E. Brown sobre Tribolium castaneum Herbst. en granos de trigo (Triticum aestivum L.)
Provedor de dados: 21
Autores: Ringuelet, Jorge Abel; Ocampo, Rafael; Henning, Cynthia; Padín, Susana; Urrutia, María Inés; Dal Bello, Gustavo.
Tribolium castaneum (Coleoptera: Tenebrionidae) es un insecto plaga de granos, muy destructivo en la etapa de almacenamiento y altamente resistente a los fitosanitarios sintéticos. Por esta razón su control químico se realiza con altas concentraciones de insecticidas que aumentan la contaminación ambiental y los peligros para la salud humana. Las tendências actuales en el manejo integrado de plagas se orientan hacia el uso de plaguicidas biológicos o biopesticidas como los extractos vegetales, que no generan resistencia y son de baja toxicidad. En ese sentido, el objetivo del presente trabajo fue estudiar la actividad repelente e insecticida del aceite esencial de Lippia alba (Verbenaceae) quimiotipo carvona-limoneno sobre adultos de T. castaneum, en...
Tipo: Journal paper
Palavras-chave: Production systems Farming Systems Cereals; Pulses and oilseeds.
Ano: 2014
URL: http://orgprints.org/27407/1/Ringuelet_Actividad%20insecticida%20del%20aceite%20esencial%20de.pdf

Actividad insecticida in vitro de extracto crudo de Beauveria bassiana (Bálsamo) Vuillemin sobre larvas de Phyllophaga spp. (Harris)
Provedor de dados: 100
Autores: Chávez Ibañez,Erika; Rodríguez Navarro,Silvia; Sánchez Pérez,Lluvia de Carolina; Hamdan Partida,Aida; Barranco Florido,Juan Esteban.
Este ensayo tuvo como objetivo determinar el efecto insecticida de los extractos crudos de Beauveria bassiana (Bálsamo) Vuillemin sobre larvas de gallina ciega (Phyllophaga spp.) (Harris). Los extractos se obtuvieron a partir de un medio de fermentación sólida del hongo entomopatógeno y las larvas del insecto (Phyllophaga spp) se recolectaron en zonas del municipio de Zacatepec, Morelos, México. Se diseñó un experimento con dos criterios: A. con sustrato: T1 Agua destilada (control), T2.- Extracto crudo de B. bassiana. B. sin sustrato: T3.- Agua destilada y T4.- Extracto crudo de B. bassiana; se utilizaron 8 larvas por tratamiento. A cada larva se le inyectó 10 µl y se observaron cada 48 horas por 10 días. Los datos se sometieron a un análisis no...
Tipo: Journal article
Palavras-chave: Beauveria bassiana; Phyllophaga spp.; Caña de azúcar.
Ano: 2014
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522014000300012

Actividad larvicida de extractos etanólicos de Tabernaemontana cymosa y Trichilia hirta sobre larvas de estadio III y IV de Aedes aegypti (Diptera: Culicidae)
Provedor de dados: 98
Autores: Díaz Castillo,Fredyc; Morelos Cardona,Sandra Marcela; Carrascal Medina,Moisés; Pájaro González,Yina; Gómez Estrada,Harold.
Introducción: el mosquito Aedes aegypti es el principal vector de los virus del dengue y la fiebre amarilla. Una de las formas actuales para combatir estas enfermedades es el control del vector. Sin embargo, los problemas causados por los insecticidas sintéticos y la resistencia adquirida por los mosquitos, hacen cada vez más difícil esta lucha. Las plantas constituyen una fuente alternativa al uso de insecticidas sintéticos. Objetivos: evaluar la actividad larvicida para el mosquito Aedes aegypti, de los extractos etanólicos y fracciones activas, de diferentes órganos vegetales de las especies Trichilia hirta L. y Tabernaemontana cymosa Jacq. Métodos: en este estudio se utilizaron larvas de Aedes aegypti en estadios III y IV. Los extractos etanólicos...
Tipo: Journal article
Palavras-chave: Resistencia a larvicidas; Dengue; Tabernaemontana cymosa; Trichilia hirta.
Ano: 2012
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962012000300006

Actividad Varroocida del timol en colonias de Apis mellifera L. de la provincia de Santa Fe
Provedor de dados: 78
Autores: Bulacio Cagnolo,N.; Basualdo,M.; Eguaras,M.
Se evaluó la actividad acaricida del timol sobre Varroa destructor Anderson &amp;amp; Trueman, en un apiario en producción en el año 2006 y 2008. El timol, en su formulación comercial Naturalvar® administrado en dosis de 32,12 g aplicados cada 15 días en dos dosis repartidas en dos tabletas de vermiculita colocadas sobre los cabezales de los marcos de las cámaras de cría mostró una eficacia del 81 % en el 2006 y un 82% en el 2008. Estos resultados sugieren que el timol puede considerarse un producto orgánico eficaz para el control de la Varroosis en el marco de un Programa de Manejo Integrado de Plagas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Varroa destructor; Eficacia; Timol.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-34982010000100011

Activities and Novel Applications of Secondary Metabolite Coumarins
Provedor de dados: 87
Autores: HUSSAIN,M.I.; QAMAR ABBAS,S.; REIGOSA,M.J.
ABSTRACT: This review covers biological activity of secondary metabolites, coumarin and their derivatives on different organisms (pests, pathogens, weeds), as well as their applications in agriculture as eco-friendly pesticides and weed control agents. Naturally occurring coumarins have shown biological and allelopathic potential on a broad range of organisms. Coumarin inhibits seed germination, root growth, morphology, histology, water uptake, respiration, photosynthesis, cell elongation, cell división and differentiation. Coumarin demonstrate excellent insecticidal potential against eggs, larvae and adult insects. Coumarin showed antifeedent responses in a wide range of memebers from invertebrates to vertebrates. The information provided in this review...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coumarin; Secondary metabolites; Multifunctionality; Herbivory; Allelopathy; Phytotoxicity; Weed control.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100220

Activity of alternative oxidase and plant uncoupling mitochondrial protein in potato tubers stored at low temperature or submitted to artificial aging
Provedor de dados: 61
Autores: Pinheiro,Hugo Alves; Borges,Regis; Silva,Marco Aurélio Pedron e; Centeno,Danilo Cruz.
Potato tubers (Solanum tuberosum L. cv. Binje) were stored at 18 and 4ºC in order to verify changes in mitochondrial metabolism, especially in the activities of the alternative oxidase (AOX) and plant uncoupling mitochondria protein (PUMP). Tubers were also sliced and submitted to artificial aging. The oxygen consumption rate (OCR), respiratory control (RC) and ADP/O ratio for mitochondria obtained after storage at 18ºC were not altered, regardless of the time of storage. Considerable increment in OCR, for both respiratory states 3 and 4, was observed after storing the tubers for five and ten days at 4ºC; and it was accomplished by reductions in RC and ADP/O. The AOX activity was evident after five days at 4ºC, and it was enhanced after ten days of storage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum L.; Mitochondrial swelling; Oxidative stress; Respiration.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202004000200001

Activity of Antioxidant Enzymes in Euphorbia heterophylla Biotypes and their Relation to Cross Resistance to ALS and Protox Inhibitors
Provedor de dados: 87
Autores: XAVIER,E.; TREZZI,M.M.; OLIVEIRA,M.C.; VIDAL,R.A.; BRUSAMARELLO,A.P.
ABSTRACT: The characteristics of multiple resistance in Euphorbia heterophylla biotypes to herbicides that are inhibitors of ALS (Acetolactate synthase) and PPO (Protoporphyrinogen oxidase) and their responsible mechanisms are still not completely elucidated. The objectives of this study were to identify cross-resistance to herbicides from different chemical groups of ALS inhibitors (imidazolinones, sulfonylureas, pyrimidyl benzoates and sulfonanilides) and also PPO inhibitors (diphenylethers, phthalamides, oxadiazoles, triazolinones and pyrimidinediones) in E. heterophylla biotypes with multiple resistance to these herbicides; to analyze whether the antioxidant enzymes superoxide dismutase (SOD) and peroxidase (POD) constitute mechanisms that are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dose-response curves; Superoxide dismutase; Peroxidase; Acetolactate synthase; Protoporphyrinogen oxidase.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100340

Activity of antioxidative enzymes in watercress and Chinese cabbage plants grown under hydroponic system with brackish water
Provedor de dados: 75
Autores: Lira,Raquele M; Silva,Ênio FF; Willadino,Lilia; Oliveira Filho,Ronaldo A; Andrade,Gilvany R.
ABSTRACT Underground water reserves in Semiarid Region present high salinity levels; however, scarcity of resource compels farmers to use this water for conventional agriculture. Biomass production and activity of the antioxidative defense system of Chinese cabbage and watercress were evaluated in plants grown under hydroponic NFT system with brackish water. The experimental design was completely randomized, with four replications and five water salinity levels (1.95; 3.37; 4.48; 6.82 and 7.51 dS m-1), obtained by an increasing addition of NaCl into the local water supply and nutrient salts for preparation of nutrient solution. Both watercress and Chinese cabbage plants decreased in fresh and dry shoot biomass, in relation to increase of salinity in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Naturtium officinale; Brassica pekinensis; Superoxide dismutase; Ascorbate peroxidase; Catalase.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200205

Activity of Brazilian propolis against Aeromonas hydrophila and its effect on Nile tilapia growth, hematological and non-specific immune response under bacterial infection
Provedor de dados: 42
Autores: ORSI,RICARDO O.; SANTOS,VIVIAN G. DOS; PEZZATO,LUIZ E.; CARVALHO,PEDRO L.P.F. DE; TEIXEIRA,CAROLINE P.; FREITAS,JAKELINE M.A.; PADOVANI,CARLOS R.; SARTORI,MARIA M.P.; BARROS,MARGARIDA M.
ABSTRACT The effect of the ethanolic extract of propolis (EEP) on Aeromonas hydrophila was analyzed by determination of minimum inhibitory concentration (MIC). Then, the effects of crude propolis powder (CPP) on growth, hemato-immune parameters of the Nile tilapia, as well as its effects on resistance to A. hydrophila challenge were investigated. The CPP (0.5, 1.0, 1.5, 2.0, 2.5 and 3.0%) was added to the diet of 280 Nile tilapia (50.0 ± 5.7 g fish-1). Hemato-immune parameters were analyzed before and after the bacterial challenge. Red blood cell, hematocrit, hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC), and hydrogen peroxide (H2O2) and nitric oxide (NO) were evaluated. The MIC of the EEP was 13% (v/v) with a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Health; Hematology; Immunology; Oreochromis niloticus; Propolis; Stress.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401785

Activity of Exoenzymes in Treated Wastewater Irrigated Soils
Provedor de dados: 17
Autores: Elisabeth J&amp;#xfc;schke; Bernd Marschner.
The reuse of reclaimed wastewater for irrigation of agricultural fields greatly influences the activity of soil microorganisms through the input of organic compounds. Due to the production of exoenzymes by microorganisms for the decomposition of substrates it can be assumed that the irrigation with treated wastewater (TWW) has a strong influence on the soil enzyme pool. In this study the activity of ten exoenzymes, which catalyses processes in C, N and P nutrient cycles, were determined in 3 different soils in 0-10, 10-20, 20-30, 30-50, 50-70 and 70-100 cm soil depth. The soils were used for agriculture and irrigated with reclaimed wastewater reused after a secondary treatment step. Additionally a control after freshwater irrigation was studied. Due to the...
Tipo: Presentation
Palavras-chave: Ecology; Microbiology; Earth &amp; Environment.
Ano: 2011
URL: http://precedings.nature.com/documents/6278/version/1

Activity of liver microsomal enzymes during the chronic phase of murine schistosomiasis
Provedor de dados: 56
Autores: Conte,F.P.; Fidalgo-Neto,A.A.; Manhães-Rocha,D.A.; Paumgartten,F.J.R.; De-Oliveira,A.C.A.X.
The effects of schistosomiasis on microsomal enzymes were studied on post-infection day 90 when accumulated damage and fibrosis are most intense but granulomatous reaction around the eggs harbored in the liver is smaller than during the earlier phases. Swiss Webster (SW) and DBA/2 mice of either sex (N = 12 per sex per group) were infected with 100 Schistosoma mansoni cercariae on postnatal day 10 and killed on post-infection day 90. Cytochrome P-450 (CYP) concentration and alkoxyresorufin-O-dealkylases (EROD, MROD, BROD, and PROD), p-nitrophenol-hydroxylase (PNPH), coumarin-7-hydroxylase (COH), and UDP-glucuronosyltransferase (UGT) activities were measured in hepatic microsomes. Age-matched mice of the same sex and strain were used as controls. In S....
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Schistosoma mansoni; Pharmacokinetics; Cytochrome P-450; Monooxygenases; Granuloma; Liver microsomes.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000500008

ACTIVITY OF SOME BRAZILIAN ISOLATES OF ENTOMOPATHOGENIC FUNGI AGAINST THE POULTRY RED MITE DERMANYSSUS GALLINAE DE GEER (ACARI: DERMANYSSIDAE)
Provedor de dados: 89
Autores: Kasburg,CR; Alves,LFA; Oliveira,DGP; Rohde,C.
ABSTRACT Poultry red mite Dermanyssus gallinae is a cosmopolitan and hematophagous species commonly found in layer houses around the world. Poultry mite infestations may cause anemia, stress, low body weight and egg production, and mortality. Mite control is typically based on chemical products, but they are not effective and leave residues in eggs; therefore, alternative control methods, such as entomopathogenic fungi, need to researched. This study aimed at evaluating, in the laboratory, the activity of Brazilian isolates of entomopathogenic fungi against D. gallinae. The mites were collected from a commercial layer house and were sprayed with conidial suspensions (1 × 108 conidia/mL) of five isolates of Beauveria bassiana and Metarhizium anisopliae. All...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hematophagous mites; Microbial control; Ectoparasites; Laying hens.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300457

Acumulación de ácido araquidónico en fosfolípidos y triglicéridos y producción de prostaglandinas con relación a estrés térmico en semilla de ostión Crassostrea gigas
Provedor de dados: 5
Autores: Duran Encinas, Yazmin.
Crassostrea gigas is a marine invertebrate that inhabits the intertidal zone and therefore, is commonly exposed to multiple environmental stressors, including temperature. In recent years mass mortality events have been reported in Mexico in C. gigas associated with the increase in temperature during the summer. Organisms under thermal stress present an increase in prostaglandins (PG) production by cyclooxygenases (COX), an enzymatic route using arachidonic acid (ARA) present in the phospholipids (FL) of the cell membrane as substrate, but PG can also increase non-enzymatically by reactive oxygen species (ROS) that are produced during increased metabolism. It has been reported that some organisms exposed to stress accumulate a higher concentration of ARA...
Tipo: Text
Palavras-chave: Arachidonic acid; Stress; Phospholipid; Isotope; Mollusk; Temperature; Triglyceride; Prostaglandin.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00620/73193/72387.pdf

Acumulación de metales pesados en microcrustáceos planctónicos provenientes de un embalse contaminado por relaves mineros, embalse Rapel (34° 10' S - 71° 29' W), Chile
Provedor de dados: 20
Autores: Mercado Leal, S.I.
El embalse Rapel, es un cuerpo de agua que está siendo sometido a un fuerte impacto antropogénico, por lo que evidencia severos signos de eutrofización. Esto último debido a que el embalse se ha transformado en el cuerpo receptor de una gran diversidad de efluentes (industriales, agrícolas y domésticos), que evacuan sus descargas sin ningún tipo de tratamiento. A lo cual se le debe agregar la recepción de aguas provenientes de los relaves de la mina de cobre “El Teniente”. Con el objetivo de determinar la presencia y acumulación de metales pesados en el agua y en los organismos zooplanctónicos, durante el mes de Octubre del 2003 se tomaron muestras de agua y de ejemplares de Ceriodaphnia dubia, Bosmina chilensis y Diaptomus diabolicus. Como especies...
Tipo: Theses and Dissertations
Palavras-chave: Heavy metals; Freshwater pollution; Water reservoirs; Water analysis; X-ray spectroscopy; Zooplankton; Man-induced effects.
Ano: 2004
URL: http://hdl.handle.net/1834/4899

Acute AT1 receptor blockade does not improve the depressed baroreflex in rats with chronic renal hypertension
Provedor de dados: 56
Autores: Farah,V.M.A.; Moreira,E.D.; Ushizima,M.; Cestari,I.A.; Irigoyen,M.C.; Krieger,E.M.
To assess the role of angiotensin II in the sensitivity of the baroreflex control of heart rate (HR) in normotensive rats (N = 6) and chronically hypertensive rats (1K1C, 2 months, N = 7), reflex changes of HR were evaluated before and after (15 min) the administration of a selective angiotensin II receptor antagonist (losartan, 10 mg/kg, iv). Baseline values of mean arterial pressure (MAP) were higher in hypertensive rats (195 ± 6 mmHg) than in normotensive rats (110 ± 2 mmHg). Losartan administration promoted a decrease in MAP only in hypertensive rats (16%), with no changes in HR. During the control period, the sensitivity of the bradycardic and tachycardic responses to acute MAP changes were depressed in hypertensive rats (~70% and ~65%, respectively)...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Baroreflex sensitivity; Losartan; Angiotensin II; Renal hypertension.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001200014

Acute but not chronic metabolic acidosis potentiates the acetylcholine-induced reduction in blood pressure: an endothelium-dependent effect
Provedor de dados: 56
Autores: Celotto,A.C.; Ferreira,L.G.; Capellini,V.K.; Albuquerque,A.A.S.; Rodrigues,A.J.; Evora,P.R.B.
Metabolic acidosis has profound effects on vascular tone. This study investigated the in vivo effects of acute metabolic acidosis (AMA) and chronic metabolic acidosis (CMA) on hemodynamic parameters and endothelial function. CMA was induced by ad libitum intake of 1% NH4Cl for 7 days, and AMA was induced by a 3-h infusion of 6 M NH4Cl (1 mL/kg, diluted 1:10). Phenylephrine (Phe) and acetylcholine (Ach) dose-response curves were performed by venous infusion with simultaneous venous and arterial blood pressure monitoring. Plasma nitrite/nitrate (NOx) was measured by chemiluminescence. The CMA group had a blood pH of 7.15±0.03, which was associated with reduced bicarbonate (13.8±0.98 mmol/L) and no change in the partial pressure of arterial carbon dioxide...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acid-base balance; Metabolic acidosis; Hemodynamic failure; Endothelium; Nitric oxide.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000200604

Acute copper toxicity in juvenile fat snook Centropomus parallelus (Teleostei: Centropomidae) in sea water
Provedor de dados: 83
Autores: Oliveira,Bruno L.; Fernandes,Luiz F. Loureiro; Bianchini,Adalto; Chippari-Gomes,Adriana R.; Silva,Bruno F.; Brandão,Geisamanda P.; Gomes,Levy C.
Three experiments were designed to assess the accumulation and acute toxicity of copper (Cu) in juvenile fat snook Centropomusparallelus. The first experiment was performed to determine the 96-h lethal concentration (LC50) of Cu. The second experiment was designed to assess the effects of sublethal concentrations of Cu (0.47 and 0.94 mg/L), while the third one allowed us to test the recovery capacity of fish exposed to the sublethal concentrations Cu and kept in sea water without Cu addition. The LC50value for Cu was found to be 1.88 mg/L Cu. Fish exposed to the sublethal concentrations of Cu showed a significant accumulation of Cu in gills at 96 h respect to the control ones (0.43 µg/g Cu). No significant difference was observed in the accumulation of Cu...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic toxicology; Comet assay; Gills; Lethal toxicity; Micronucleus test.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000400845

Acute effect of alcohol intake on sine-wave Cartesian and polar contrast sensitivity functions
Provedor de dados: 56
Autores: Cavalcanti-Galdino,M.K.; da Silva,J.A.; Mendes,L.C.; dos Santos,N.A.; Simas,M.L.B.
The aim of this study was to assess contrast sensitivity for angular frequency stimuli as well as for sine-wave gratings in adults under the effect of acute ingestion of alcohol. We measured the contrast sensitivity function (CSF) for gratings of 0.25, 1.25, 2.5, 4, 10, and 20 cycles per degree of visual angle (cpd) as well as for angular frequency stimuli of 1, 2, 4, 24, 48, and 96 cycles/360°. Twenty adults free of ocular diseases, with normal or corrected-to-normal visual acuity, and no history of alcoholism were enrolled in two experimental groups: 1) no alcohol intake (control group) and 2) alcohol ingestion (experimental group). The average concentration of alcohol in the experimental group was set to about 0.08%. We used a paradigm involving a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Visual perception; Contrast sensitivity function; Alcohol intake; Angular frequency; Psychophysical method.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000400321

Acute effect of passive cycle-ergometry and functional electrical stimulation on nitrosative stress and inflammatory cytokines in mechanically ventilated critically ill patients: a randomized controlled trial
Provedor de dados: 56
Autores: França,E.E.T.; Gomes,J.P.V.; De Lira,J.M.B.; Amaral,T.C.N.; Vilaça,A.F.; Paiva Júnior,M.D.S.; Elihimas Júnior,U.F.; Correia Júnior,M.A.V.; Forgiarini Júnior,L.A.; Costa,M.J.C.; Andrade,M.A.; Ribeiro,L.C.; De Castro,C.M.M.B.
Early mobilization is beneficial for critically ill patients because it reduces muscle weakness acquired in intensive care units. The objective of this study was to assess the effect of functional electrical stimulation (FES) and passive cycle ergometry (PCE) on the nitrous stress and inflammatory cytometry in critically ill patients. This was a controlled, randomized, open clinical trial carried out in a 16-bed intensive care unit. The patients were randomized into four groups: Control group (n=10), did not undergo any therapeutic intervention during the study; PCE group (n=9), lower-limb PCE for 30 cycles/min for 20 min; FES group (n=9), electrical stimulation of quadriceps muscle for 20 min; and FES with PCE group (n=7), patients underwent PCE and FES,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytokines; Nitrosative stress; Intensive care unit; Physiotherapy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000400605

Acute effects of resistance exercise and intermittent intense aerobic exercise on blood cell count and oxidative stress in trained middle-aged women
Provedor de dados: 56
Autores: Cardoso,A.M.; Bagatini,M.D.; Roth,M.A.; Martins,C.C.; Rezer,J.F.P.; Mello,F.F.; Lopes,L.F.D.; Morsch,V.M.; Schetinger,M.R.C.
The aim of this study was to compare the effect of an intermittent intense aerobic exercise session and a resistance exercise session on blood cell counts and oxidative stress parameters in middle-aged women. Thirty-four women were selected and divided into three groups: RE group (performing 60 min of resistance exercises, N = 12), spinning group (performing 60 min of spinning, N = 12), and control group (not exercising regularly, N = 10). In both exercise groups, lymphocytes and monocytes decreased after 1-h recuperation (post-exercise) compared to immediately after exercise (P &lt; 0.05). Immediately after exercise, in both exercised groups, a significant increase in TBARS (from 16.5 ± 2 to 25 ± 2 for the spinning group and from 18.6 ± 1 to 28.2 ± 3 nmol...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intermittent exercise; Anaerobic exercise; Oxidative stress; Immune suppression; Middle-aged women.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001200010

Acute Effects of Sulphur Mustard Gas on the Number of Lymphocytes in the Rat's Spleen
Provedor de dados: 77
Autores: Mehrdad,Jahanshahi; Bahadoran,H; Asadi,M. H.
Sulphur mustard (SM), commonly known as mustard gas is an alkylating agent that causes serious blisters upon contact with human skin. SM is frequently used as a chemical warfare agent. There is some evidence for sulfur mustard-induced lymph system effects in humans. Between 2000-2001, 42 male albino Wistar rats were used. After accommodation with environment, we divided rats to control, sham and experimental groups (2.5 mg/kg, 5 mg/kg, 10 mg/kg, 20 mg/kg and 40 mg/kg). Then we injected sulphur mustard oil in rat's intraperitoneal space. Then their spleens were removed for histological verification. Our results showed that significant difference in lymphocytes number in experimental groups after 24 hours. The number of lymphocytes in 5, 10, 20 and 40 mg/kg...
Tipo: Journal article
Palavras-chave: Mustard gas; Lymphocytes; Spleen.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200031

Acute exercise and caffeine improve insulin-induced hypoglycemia in normal and malnourished rats
Provedor de dados: 3
Autores: Babata, Lucas Kazunori Rubira; Malta, Ananda; Godoi, Vilma Aparecida Ferreira de; Pedrosa, Maria Montserrat Diaz.
In food restriction, hypoglycemic episodes can be more severe and persistent. This study assessed the influence of acute exercise and caffeine on the insulin-induced hypoglycemia in freely-fed or malnourished (50% food restriction) young rats. At the age of 60 days, rats under overnight fasting received an insulin injection to cause an episode of hypoglycemia. In some animals, hypoglycemia was preceded by an acute session of exercise, in others, caffeine was orally given 15 minutes after insulin injection; or exercise and caffeine were combined. Blood samples were collected at regular intervals for five hours after insulin injection. A beneficial effect of both exercise or caffeine on the hypoglycemic episode in the malnourished rats was found. In the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food restriction; Glycemia; Methylxanthine; Physical activity fisiologia endócrina.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/22776

Acute exercise performed close to the anaerobic threshold improves cognitive performance in elderly females
Provedor de dados: 56
Autores: Córdova,C.; Silva,V.C.; Moraes,C.F.; Simões,H.G.; Nóbrega,O.T.
The objective of the present study was to compare the effect of acute exercise performed at different intensities in relation to the anaerobic threshold (AT) on abilities requiring control of executive functions or alertness in physically active elderly females. Forty-eight physically active elderly females (63.8 ± 4.6 years old) were assigned to one of four groups by drawing lots: control group without exercise or trial groups with exercise performed at 60, 90, or 110% of AT (watts) and submitted to 5 cognitive tests before and after exercise. Following cognitive pretesting, an incremental cycle ergometer test was conducted to determine AT using a fixed blood lactate concentration of 3.5 mmol/L as cutoff. Acute exercise executed at 90% of AT resulted in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aging; Alert; Anaerobic threshold; Exercise; Executive functions; Response time test.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000500010

ACUTE EXPOSITION OF COMMON SNOOK JUVENILES TO SUBLETHAL LEVELS OF NITRATE
Provedor de dados: 37
Autores: PEDROTTI,Fabiola; MAGNOTTI,Caio; STERZELECKI,Fabio; CERQUEIRA,Vinicius.
ABSTRACT The present study aimed to evaluate nitrate acute toxicity in cultured common snook Centropomus undecimalis juveniles. Fish (20.35±6.10 g and 13.90±1.75 cm) were submitted to a control treatment (without nitrate addition) plus 20 increasing concentrations of nitrate up to 2735 mg L-1 obtained by sodium nitrate. System was semi-static, with 100 % daily water renewed and sodium nitrate addition to maintain the respective concentrations. Water temperature was 20.99±0.55 °C, dissolved oxygen 6.79±0.21 mg L-1, pH 8.23±0.10, alkalinity 141.80±7.68 mg L-1 CaCO3, salinity 33.47±3.75 g L-1, total ammonia and nitrite less than 1 mg L-1. During experimental period (96 h), no mortalities were observed in fish with or without nitrate addition. Compared to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Centropomidae; Marine fish; Nitrogen.
Ano: 2018
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2018000300304

Acute exposure to lead increases myocardial contractility independent of hypertension development
Provedor de dados: 56
Autores: Fioresi,M.; Furieri,L.B.; Simões,M.R.; Ribeiro Junior,R.F.; Meira,E.F.; Fernandes,A.A.; Stefanon,I.; Vassallo,D.V.
We studied the effects of the acute administration of small doses of lead over time on hemodynamic parameters in anesthetized rats to determine if myocardial contractility changes are dependent or not on the development of hypertension. Male Wistar rats received 320 µg/kg lead acetateiv once, and their hemodynamic parameters were measured for 2 h. Cardiac contractility was evaluated in vitro using left ventricular papillary muscles as were Na+,K+-ATPase and myosin Ca2+-ATPase activities. Lead increased left- (control: 112 ± 3.7 vs lead: 129 ± 3.2 mmHg) and right-ventricular systolic pressures (control: 28 ± 1.2vs lead: 34 ± 1.2 mmHg) significantly without modifying heart rate. Papillary muscles were exposed to 8 µM lead acetate and evaluated 60 min later....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lead; Myocardial contractility; Ventricular pressure.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000200178

Acute extracellular fluid volume changes increase ileocolonic resistance to saline flow in anesthetized dogs
Provedor de dados: 56
Autores: Santiago Jr.,A.T.; Gondim,F. de-A.A.; Cavalcante,D.I.M.; da-Graça,J.R.V.; de-Oliveira,G.R.; dos-Santos,A.A.; Rola,F.H.
We determined the effect of acute extracellular fluid volume changes on saline flow through 4 gut segments (ileocolonic, ileal, ileocolonic sphincter and proximal colon), perfused at constant pressure in anesthetized dogs. Two different experimental protocols were used: hypervolemia (iv saline infusion, 0.9% NaCl, 20 ml/min, volume up to 5% body weight) and controlled hemorrhage (up to a 50% drop in mean arterial pressure). Mean ileocolonic flow (N = 6) was gradually and significantly decreased during the expansion (17.1%, P&lt;0.05) and expanded (44.9%, P&lt;0.05) periods while mean ileal flow (N = 7) was significantly decreased only during the expanded period (38%, P&lt;0.05). Mean colonic flow (N = 7) was decreased during expansion (12%, P&lt;0.05) but...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ileocolonic motility; Extracellular fluid volume; Expansion; Hemorrhage; Atropine.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000800014

Acute hepatotoxicity of Crotalus durissus terrificus (South American rattlesnake) venom in rats
Provedor de dados: 80
Autores: França,RF; Vieira,RP; Ferrari,EF; Souza,RA; Osorio,RAL; Prianti-Jr,ACG; Hyslop,S; Zamuner,SR; Cogo,JC; Ribeiro,W.
Venom of the South American rattlesnake, Crotalus durissus terrificus (Cdt), presents myotoxic and neurotoxic outcomes, but reports on its effects on the liver are scarce. This study examined the hepatotoxicity resulting from Cdt venom administration (100, 200 and 300 µg/kg) in male Wistar rats. Animals were studies at 3, 6, 9 and 12 hours after venom injection. The hepatotoxicity was assessed through serum levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (AP), gamma glutamyl transferase (GGT), bilirrubin and also by histopathological evaluation. All the different concentrations of Cdt venom resulted in increased levels of hepatic enzymes, when compared with the control group, except for the 100 µg/kg dose,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crotalus durissus terrificus; Hepatotoxicity; Histology; AST; ALT; Rattlesnake; Liver enzymes; Venom.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000100007

Acute hypotensive and diuretic activities of Berberis vulgaris root bark aqueous extract in normal rats
Provedor de dados: 60
Autores: Ahmed,Muhammad; Azmat,Aisha; Khan,Salahuddin.
ABSTRACT The aim of this study is to investigate the effectiveness of intravenous administration of Berberis vulgaris root bark aqueous extract (BRBD) on the cardiovascular and renal functions of healthy normotensive rats. The different doses of BRBD 1, 10 and 20 mg/kg were administered intravenously (i.v) in normal rats. Blood pressure, diuretic activity and serum renal profile were analyzed. Intravenous injection of BRBD at the different doses of 1, 10 and 20 mg/kg showed a dose-dependent reduction in mean arterial blood pressure (P&lt;0.001). At different doses of 1, 10 and 20 mg/kg, the hypotensive effect remained for more than one hour. Single dose administration of BRBD at doses of 10 and 20 mg/kg caused a significant increase in urine output...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Berberis vulgaris root bark/ aqueous extract (BRBD); Mean arterial blood pressure (MABP); Diuresis; Serum renal profile test.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000400301

Acute intraperitoneal mercury chloride contamination and distribution in liver, muscle and gill of a neotropical fish Hoplias malabaricus (BLOCK, 1794)
Provedor de dados: 52
Autores: Jesus,Taise Bomfim de; Almeida,Priscila Gontijo Aguiar de; Vergílio,Cristiane dos Santos; Machado,André Luiz dos Santos; Carvalho,Carlos Eduardo Veiga de.
The present study investigated with the distribution of mercury chloride in muscle, liver and gills of Hoplias malabaricus contaminated through intraperitoneal injection (6 µg in 0.1mL of PBS) for a period of 24, 48, 72 and 96h. The liver, gill and muscle were analyzed for mercury content in an ICP/AES (Varian Liberty II) with vapor generating accessory (VGA 77). The muscle and liver tissues presented the same contamination pattern increasing concentrations in 24 h of exposure with a decrease in Hg concentration with 72 h and a new increase in Hg concentrations with 96 h of exposure. The Hg concentrations in contaminated organisms were always higher than the control although only for liver samples the difference was statistically significant. Liver samples...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inorganic mercury; Liver; Acute effects; Intraperitoneal contamination.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000200021

Acute lead-induced vasoconstriction in the vascular beds of isolated perfused rat tails is endothelium-dependent
Provedor de dados: 56
Autores: Silveira,E.A.; Lizardo,J.H.F.; Souza,L.P.; Stefanon,I.; Vassallo,D.V.
Chronic lead exposure induces hypertension in humans and animals, affecting endothelial function. However, studies concerning acute cardiovascular effects are lacking. We investigated the effects of acute administration of a high concentration of lead acetate (100 µΜ) on the pressor response to phenylephrine (PHE) in the tail vascular bed of male Wistar rats. Animals were anesthetized with sodium pentobarbital and heparinized. The tail artery was dissected and cannulated for drug infusion and mean perfusion pressure measurements. Endothelium and vascular smooth muscle relaxation were tested with acetylcholine (5 µg/100 µL) and sodium nitroprusside (0.1 µg/100 µL), respectively, in arteries precontracted with 0.1 µM PHE. Concentration-response curves to PHE...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lead acetate; Vascular reactivity; Endothelium; Hypertension.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000500011

Acute Toxicity and Cytotoxicity Effect of Ethanolic Extract of Spondias tuberosa Arruda Bark: Hematological, Biochemical and Histopathological Evaluation
Provedor de dados: 42
Autores: BARBOSA,HUMBERTO M.; NASCIMENTO,JAILSON N. DO; ARAÚJO,THIAGO A.S.; DUARTE,FILIPE S.; ALBUQUERQUE,ULYSSES P.; VIEIRA,JEYMESSON R.C.; SANTANA,EDSON R.B. DE; YARA,RICARDO; LIMA,CLÁUDIA S.A.; GOMES,DAYANE A.; LIRA,EDUARDO C.
ABSTRACT Spondias tuberosa Arruda, popularly named as umbu, is native from savanna-like vegetation and widely used for medicinal purposes, however, the toxicological profile is not available yet. This study evaluated the phytochemical profile and acute toxicity and citoxicity of Ethanolic Extract of Spondias tuberosa Arruda Bark (EEStb) in hematological, biochemical and histopathological parameters. Female Wistar rats were divided into: control (C) and animal treated single doses of 300mg/Kg (EEStb300) or 2.000mg/kg body weight (ESStb2.000) of the EEStb. After 24 hours and 14 days from gavage, the behavior, hematological, biochemical and histopathological parameters were assayed. Cytotoxicity effect was evaluated on HEp-2 cell lines. Neither EEStb300 nor...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acute toxicity; Cytotoxicity; Phytomedicine; Safety; Spondias tuberosa Arruda; Toxicology.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501993

Acute toxicity of a deltamethrin based pesticide (DBP) to the Neotropical electric fish Microsternarchus cf. bilineatus (Gymnotiformes)
Provedor de dados: 36
Autores: CHAVES,Valesca de Souza; MARCON,Jaydione Luiz; DUNCAN,Wallice Paxiúba; ALVES-GOMES,José Antônio.
ABSTRACT Deltamethrin is a pyrethroid insecticide widely used in pest control in Brazilian agriculture. The intensive and disordered use of this pesticide in the Amazon region can drive it into aquatic ecosystems in several ways, but mainly by runoff and leaching. The present study was conceived to determine the acute toxicity (LC50) of a deltamethrin based pesticide (DBP) and to characterize its effects on two biochemical biomarkers, glutathione-S-transferase (GST) and acetylcholinesterase (AChE), in tissues of the electric fish Microsternarchus cf. bilineatus. Fishes were exposed to concentrations of 1, 2, 3, 4 and 5 μg L-1 of DBP for up to 96 hours. For each treatment, the absolute activity of the enzymes GST (muscle and liver) and AChE (muscle and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pyrethroid insecticide; Biomarkers; Median LC50; Glutathione-S-transferase; Acetylcholinesterase.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400355

Acute toxicity of birch tar oil on aquatic organisms
Provedor de dados: 21
Autores: Hagner, Marleena; Penttinen, Olli-Pekka; Pasanen, Tiina; Tiilikkala, Kari; Setälä, Heikki.
Birch tar oil (BTO) is a by-product of processing birch wood in a pyrolysis system. Accumulating evidence suggests the suitability of BTO as a biocide or repellent in terrestrial environments for the control of weeds, insects, molluscs and rodents. Once applied as biocide, BTO may end up, either through run-off or leaching, in aquatic systems and may have adverse effects on non-target organisms. As very little is known about the toxicity of BTO to aquatic organisms, the present study investigated acute toxicity (LC50/EC50) of BTO for eight aquatic organisms. Bioassays with the Asellus aquaticus (crustacean), Lumbriculus variegatus (oligochaeta worm), Daphnia magna (crustacean), Lymnea sp. (mollusc), Lemna minor (vascular plant), Danio rerio (fish),...
Tipo: Journal paper
Palavras-chave: Environmental aspects.
Ano: 2010
URL: http://orgprints.org/16886/1/hagner1.pdf

Acute toxicity of nitrate in Litopenaeus vannamei juveniles at low salinity levels
Provedor de dados: 65
Autores: Alves Neto,Inácio; Brandão,Hellyjúnyor; Furtado,Plínio Schmidt; Wasielesky Jr,Wilson.
ABSTRACT: Different technologies have been developed to improve the performance of Litopenaeus vannamei in low salinity, mainly in super-intensive systems like recirculation and BFT (Biofloc Technology System) systems. However, there is an accumulation of toxic nitrogenous compounds to the shrimps such as nitrate, that at high concentrations and depending on the salinity of the culture water can be lethal. Acute toxicity tests allow to analyze the relationship between the compound and other abiotic or biotic variables. The aim of this research was to determine the acute toxicity and safety level of nitrate (N-NO3 -) for juveniles of L. vannamei at salinities of 5 and 10g.L-1. For salinity of 5g.L-1, a control and 5 treatments were tested, with nitrate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Median lethal concentration; Pacific white shrimp; Brackish water.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100401

Acute toxicity of non-ionized ammonia on tambacu (Colossoma macropomum x Piaractus mesopotamicus)
Provedor de dados: 124
Autores: Quaresma,Fabrízia da Silva; Santos,Fernando Luís Batista dos; Ribeiro,Pedro Florêncio; Leite,Lorena Alves; Sampaio,Alexandre Holanda.
ABSTRACT Ammonia is a toxic compound to aquatic organisms and at high concentrations in water, it can cause various changes in the animal. Therefore, it becomes important to determine the tolerance of farmed aquatic animals for that substance. Thus, the aim of this study was to determine the mean lethal concentration (LC50-96 h) of un-ionized ammonia (NH3) in tambacu fingerlings (Colossoma macropomum x Piaractus mesopotamicus) in acute toxicity test. The fingerlings were exposed to ammonia at concentrations of: 0.09 (control); 0.54; 1.23; 2.52; 3.44 and 3.66 mg L-1 NH3, which were obtained from the application of NH4Cl. The test lasted 96 hours and mortalities were recorded over that period. The LC50 was determined by the Trimmed Spearman Karber...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Water quality; NH3.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000300901

Acute toxicity of pyrazosulfuron-ethyl and permethrin to juvenile Litopenaeus vannamei - doi: 10.4025/actascibiolsci.v33i1.6974
Provedor de dados: 3
Autores: Mello, Giovanni Lemos de; EPAGRI; Amaral Júnior, Hilton; Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri; Garcia, Silvano; Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri; Vinatea, Luis; UFSC.
The objective of this study was to determine the LC50 (96h) of two pesticides: Sirius&amp;reg; 250 SC herbicide of the pyrazosulfuron-ethyl group, and Talcord&amp;reg; insecticide of the permethrin group, on juvenile Litopenaeus vannamei. Shrimp total hemocyte count (THC) was also determined as an indication of physiological alterations caused by the pesticides. Juvenile shrimp (5.0 &amp;plusmn; 0.5 g) were exposed to the following concentrations: 0, 0.1, 1.0, 10, 100 and 1000 &amp;micro;g L-1 Sirius&amp;reg; 250 SC; and 0, 0.001, 0.01, 0.1, 1.0 and 10 &amp;micro;g L-1 Talcord&amp;reg;. The Talcord&amp;reg; LC50 (96h) was of 0.00933 &amp;micro;g L-1 or 9.33 ng L-1. There were no significant changes in the THC between control and test groups. No...
Palavras-chave: Toxicology; Pesticides; Shrimp culture; Litopenaeus vannamei Toxicology; Pesticides; Shrimp culture; Litopenaeus vannamei.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6974

Acute toxicity of sodium metabisulphite on mangrove crab Ucides cordatus (Decapoda, Ucididae)
Provedor de dados: 42
Autores: Pedale,Adriana B.; Fujimoto,Rodrigo Y.; Santos,Rudã F.B.; Abrunhosa,Fernando A.
The sodium metabisulphite salt is usually used in shrimp culture to prevent black spot. Unfortunately the toxicological effect of this xenobiotic in decapod crabs is unknown. Thus, the present study aims to investigate the sodium metabisulphite LC50 - 96 h in the mangrove species Ucides cordatus. Crabs were collected in the tidal creek margins in Bragança estuarine and were submitted to preliminary test (screening) and posterior definitive test. Crabs were exposed in five different concentrations and a control group in five replicates, two crabs per recipient (5 L) during 96 hours. A negative correlation was observed to sodium metabisulphite concentration in relation to dissolved oxygen and pH. At the end of the experiment were obtained the following...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Shrimp culture; Environmental impact; Metabisulphite; Lethal concentration; Neotropical species.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400015

Acute toxicity of the water-soluble fraction of diesel in Prochilodus vimboidesKner (Characiformes: Prochilodontidae)
Provedor de dados: 83
Autores: Santos,Celina Alcoforado; Lenz,Dominik; Brandão,Geisamanda Pedrini; Chippari-Gomes,Adriana Regina; Gomes,Levy Carvalho.
Diesel oil can be a source of contamination in aquatic environments, mainly as a result of spills. The effects of the water-soluble fraction of diesel (WSF) on Prochilodus vimboideswere assessed. Fish were exposed to three different WSF dilutions for up to 96 h and were compared to a control group. Damages in the fragments of DNA were analyzed using the Comet assay. The presence of erytrocyts abnormalities was assessed by micronucleus test. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activity and the accumulation of copper in gills were also analyzed. Fish exposed for 96 h had higher rates of damage than those exposed for 24 h. There was no significant difference regarding the presence of micronuclei between exposed and control fish...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Comet assay; Curimba; Diesel; Micronucleus.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100193

Acute toxicity study of a polysaccharide based hydrogel from linseed for potential use in drug delivery system
Provedor de dados: 60
Autores: Haseeb,Muhammad Tahir; Bashir,Sajid; Hussain,Muhammad Ajaz; Ashraf,Muhammad Umer; Erum,Alia; Naeem-ul-Hassan,Muhammad.
ABSTRACT Linseed hydrogel (LSH) was evaluated by acute toxicity for its potential application in oral drug delivery design. White albino mice and rabbits were divided in four groups (I-IV) and different doses of LSH (1, 2 and 5 g/kg body weight) were given except to the control group (I) that was left untreated. Rabbits were monitored for eye irritation, acute dermal toxicity and primary dermal irritation, whereas, body weight, food and water consumption, hematology and clinical biochemistry, gross necropsy and histopathology of vital organs were scrutinized in mice. LSH was considered safe after eye irritation test as no adverse signs or symptoms were seen in the eye. In dermal toxicity and irritation study, skin of treated rabbits was found normal in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Linseed hydrogel; Acute toxicity; Hematology; Clinical biochemistry; Polysaccharide.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000200610

Adaptability and leaf anatomical features in oil palm seedlings produced by embryo rescue and pre-germinated seeds
Provedor de dados: 61
Autores: Luis,Zanderluce G.; Bezerra,Kadja Milena G.; Scherwinski-Pereira,Jonny Everson.
Changes in the leaf structure of plants grown in different conditions have been reported, such as increase in size and density of stomata and reduction in stomatal control, amount of epicuticular wax, and mesophyll thickness, with a high diversity of intercellular spaces. However, these changes are highly variable depending on the physiological and morphological characteristics of each species. The objective of this work was to analyze the adaptability and anatomical plasticity of oil palm seedlings produced after embryo rescue and pre-germinated seeds. Expanded leaves were prepared for evaluation of morphometric data and anatomical structures. It was verified that the environmental conditions in vitro negatively influenced the stomata density, epidermal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Elaeis guineensis; Arecaceae; Germination; Embryo culture; Acclimatization; Plantlets metabolism.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000300008

Adaptability and phenotypic stability of sugarcane clones
Provedor de dados: 86
Autores: Regis,Jiuli Ani Vilas Boas; Andrade,João Antonio da Costa; Santos,Adriano dos; Moraes,Aparecido; Trindade,Rafael William Romo; Henriques,Hermano José Ribeiro; Polis,Bruno Henrique; Oliveira,Luiz Carlos.
Abstract: The objective of this work was to select superior sugarcane (Saccharum officinarum) clones with good stability and adaptability, considering the genotype x environment interaction in two productive cycles. Twenty-five early clones plus five control clones were evaluated during two cuts (ratoon cane and plant cane) in 24 environments. A randomized complete block design was used, with three replicates. Tons of stems per hectare and tons of pol per hectare were evaluated. To verify adaptability and stability, the bisegmented regression and the multivariate (AMMI and GGE biplot) methods were used. According to the three methods, which are complementary regarding the desired information, the most promising clones in terms of stability and general...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum officinarum; AMMI; Genotype x environment interaction; GGE biplot.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000100042

Adaptability of lettuce cultivars to planting in no-tillage on straw of Urochloa ruziziensis
Provedor de dados: 86
Autores: Hirata,Andréia Cristina Silva; Hirata,Edson Kiyoharu; Camara,João Augusto Rizzo.
Abstract: The objective of this work was to evaluate the adaptability of different lettuce (Lactuca sativa) cultivars grown in no-tillage on straw of ruzi grass (Urochloa ruziziensis), as well as its effects on soil temperature and weed control, in successive cultivations in the summer. The treatments were carried out in a randomized complete block design, with four replicates, in a split-plot arrangement (2x4), in which soil management (no-tillage on ruzi grass and convention tillage) was the main plot, and the different crisphead lettuce cultivars (Amanda, Solaris, Vanda, and Vera), the subplots. No difference was observed between cultivars for soil management. No-tillage reduced the soil temperature by up to 3.7°C and weed density by 3.7 times, in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brachiaria; Lactuca sativa; Soil conservation; Soil temperature; Vegetable crops; Weeds.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700824

Adaptation de la méthode peptide-spot à la recherche de sites, de la protéine RNA2 du nodavirus, reconnus par différents sérums de loup (Dicentrarchus labrax).
Provedor de dados: 5
Autores: Coeurdacier, Jean-luc.
Spot-Synthesis technique was applied to study protein frame or to develop antibodies with specific characteristics for use in diagnostic or research on human or mammals. In this work this technique was used to find sites on RNA2 protein of Nodavirus which are immunogenic for sea bass (Dicentrarchus labrax). It aimed to achieve synthetic peptide vaccine production against this virus. One hundred and nine overlapping peptides, of 15 amino acids frameshifted by three residues, representing the complete RNA2 protein sequence of Sb1 and Sb2 nodavirus were synthesized on a cellulose membrane by the Spot-Technique. The set of membrane bound peptides was probed by incubation with sea-bass or rabbit serum. Anti sea bass or anti rabbit alkaline phosphatase...
Tipo: Text
Palavras-chave: Peptides synthétiques; Vaccin; Peptid-spot; Séquence immunogène; Dicentrarchus labrax; Synthetic peptides; Vaccine; Immunogenicity; Dicentrarchus labrax..
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00157/26810/24919.pdf

Adaptation of "Niagara Rosada" grape must to winemaking by partial cluster dehydration
Provedor de dados: 70
Autores: Santiago,Wesley E.; Teruel,Bárbara J.; Oliveira,Rafael A. De; Silva,João C. T. R. Da.
This study aimed to verify the influence of partial dehydration of "Niagara Rosada" grape clusters in physicochemical quality of the pre- fermentation must. In Brazil, during the winemaking process it is common to need to adjust the grape must when the physicochemical characteristics of the raw material are insufficient to produce wines in accordance with the Brazilian legislation for classification of beverages, which establishes the minimum alcohol content of 8.6 % for the beverage to be considered wine. Therefore, given that the reduction in the water content of grape berries allows the concentration of chemical compounds present in its composition, especially the concentration of total soluble solids, we proceeded with the treatments that were formed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical Composition; Must; Drying.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000100010

Adaptation of the IOBC standard methodology for studies of selectivity with Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) in laboratory conditions - DOI: 10.4025/actasciagron.v26i3.1825
Provedor de dados: 1
Autores: Rocha, Luiz Carlos Dias; Carvalho, Geraldo Andrade.
The work’s aim was to evaluate the effects of some pesticides on Trichogramma pretiosum Riley, using the adapted IOBC standard methodology. A fully randomized experimental design, with ten treatments and four replicates, was utilized. The experimental plot was a cage with parasitoids exposed to fresh and dry pesticides residues. The following compounds were evaluated: (g a.i. L-1 water): lufenuron (0.04), triflumuron (0.15), imidacloprid (0.28), cyromazine (0.11), pirimicarb (0.25), methoxifenozide (0.12), abamectin (0.018), acephate (0.75) and esfenvalerate (0.019). Distillated water was used as control. The capacity of parasitism, percentage of emergence and the sex ratio of T. pretiosum were evaluated. All pesticides, except cyromazine, affected the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4    Ciências Agrárias parasitóide de ovos; Controle biológico; Seletividade 5.00.00.00-4    Ciências Agrárias.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1825

Adaptive Capacity and Traps
Provedor de dados: 7
Autores: Carpenter, Stephen R; University of Wisconsin-Madison; srcarpen@wisc.edu; Brock, William A.; University of Wisconsin-Madison; WBrock@ssc.wisc.edu.
Adaptive capacity is the ability of a living system, such as a social&amp;#8211;ecological system, to adjust responses to changing internal demands and external drivers. Although adaptive capacity is a frequent topic of study in the resilience literature, there are few formal models. This paper introduces such a model and uses it to explore adaptive capacity by contrast with the opposite condition, or traps. In a social&amp;#8211;ecological rigidity trap, strong self-reinforcing controls prevent the flexibility needed for adaptation. In the model, too much control erodes adaptive capacity and thereby increases the risk of catastrophic breakdown. In a social&amp;#8211;ecological poverty trap, loose connections prevent the mobilization of ideas and resources...
Tipo: Peer-Reviewed Insight
Palavras-chave: Adaptation; Allostasis; Model; Poverty trap; Resilience; Rigidity trap; Transformation.
Ano: 2008

Adaptive Co-management Networks: a Comparative Analysis of Two Fishery Conservation Areas in Sweden
Provedor de dados: 7
Autores: Rova, Carl; Division of Social Science/Political Science Unit, Lule&amp;aring; University of Technology, Sweden; carl.rova@ltu.se.
Co-management constitutes a certain type of institutional arrangement that has gained increased attention among both policy makers and researchers involved in the field of natural resource management. Yet the concept of co-management is broad, and our knowledge about how different kinds of management structures affect the ability to deal with challenges pertinent to the commons is limited. One of these challenges is to foster an adaptive management process, i.e., a process in which rules are continuously revised and changed according to what is known about the ecological system. We aim to address the relationship between different kinds of co-management structures and adaptive management. To this end, we conducted a comparative case study of two Fishery...
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive management; Co-management; Governance; Natural resource management; Social networks; Social network analysis; SNA.
Ano: 2010

Adaptive management in crop pest control in the face of climate variability: an agent-based modeling approach
Provedor de dados: 7
Climate changes are occurring rapidly at both regional and global scales. Farmers are faced with the challenge of developing new agricultural practices to help them to cope with unpredictable changes in environmental, social, and economic conditions. Under these conditions, adaptive management requires a farmer to learn by monitoring provisional strategies and changing conditions, and then incrementally adjust management practices in light of new information. Exploring adaptive management will increase our understanding of the underlying processes that link farmer societies with their environment across space and time, while accounting for the impacts of an unpredictable climate. Here, we assessed the impacts of temperature and crop price, as surrogates...
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive management; Agent-based model; Agro-ecosystems; Farmers; Pest.
Ano: 2015

ADAR: Soil
Provedor de dados: 21
This part of the program (1 project) is about of the construction of tools for strategic decision-making aid on the soil tillage in organic farming, taking into account adventitious control and integrating the various functions of the soil.
Tipo: Research Programme description
Palavras-chave: Soil.
Ano: 2023

Adding automated data analysis and biological evaluation to affyanalysisQC
Provedor de dados: 17
Autores: Anwesha Dutta.
Almost every cell in the body contains a full set of chromosomes and identical genes. However, only a fraction of these genes are turned on, at any given time and it is this subset of genes that are expressed, which confers unique properties to each cell type.  Gene expression is the term used to describe the transcription of the information contained within the DNA into messenger RNA (mRNA) molecules that are then translated into proteins which perform most of the critical functions of cells. &amp;#xd;&amp;#xa;&amp;#xd;&amp;#xa;Gene expression is a highly complex and tightly regulated process that allows a cell to respond dynamically both to environmental stimuli and to its own changing needs. This mechanism acts as both an on/off switch to control which...
Tipo: Presentation
Palavras-chave: Biotechnology; Bioinformatics.
Ano: 2011
URL: http://precedings.nature.com/documents/5969/version/1

Addition of activated switchgrass biochar to an aridic subsoil increases microbial nitrogen cycling gene abundances
Provedor de dados: 18
Autores: Ducey, Tom; Ippolito, J.A.; Cantrell, K.B.; Novak, J.M.; Lentz, R.D.
It has been demonstrated that soil amended with biochar, designed specifically for use as a soil conditioner, results in changes to the microbial populations that reside therein. These changes have been reflected in studies measuring variations in microbial activity, biomass, and community structure. Despite these studies, very few experiments have been performed examining microbial genes involved in nutrient cycling processes. Given the paucity of research in this area, we designed a six-month study in a Portneuf soil (coarse-silty, mixed, superactive, mesic Durinodic Xeric Haplocalcid) treated with three levels (1%, 2%, and 10% w/w ratio) of a biochar pyrolyzed from switchgrass (Panicum virgatum) at 350°C and steam activated at 800°C to measure the...
Tipo: Article
Palavras-chave: Amendments; Chemistry; Nitrogen; Soil.
Ano: 2013
URL: http://eprints.nwisrl.ars.usda.gov/1517/1/1481.pdf

Addition of benzyladenine to coconut explant cultured In vitro improves the formation of somatic embryos and their germination
Provedor de dados: 115
Autores: Montero-Cortés,Mayra I.; Chan-Rodríguez,José L.; Cordova-Lara,Ivan; Oropeza-Salin,Carlos; Sáenz-Carbonell,Luis.
Coconut (Cocos nucífera L.) production has been declining in México and other countries due to deadly diseases; therefore, massive production of palms resistant to diseases is needed for replanting. Production of somatic embryos and micropropagation could be a very useful technique to produce free disease coconut population. Explants (embryogenic-structures) of Pacific Tall 2 ecotype were cultured in an induction medium defined as I (semisolid Y3 medium containing 0.65 mM 2,4-dichlorophenoxyacetic acid) and treated with the cytokinin benzyladenine (BA) at 0, 25, 100 or 200 ,µM to evaluate its effect on embryogenic callus formation. The BA treatments did not affect the percentage of embryogenic callus formation. In order to evaluate the effect of the BA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cocos nucífera; Clonal propagation; Somatic embryogenesis; Cytokinin.
Ano: 2011
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952011000600002

Addition of green banana flour to instant noodles: rheological and technological properties
Provedor de dados: 64
Autores: Vernaza,Maria Gabriela; Gularte,Márcia Arocha; Chang,Yoon Kil.
Nowadays, there is considerable concern about the consumption of high fat and low fiber foods. The objective was to develop instant noodles (IN) with functional properties by adding 10% green banana flour (GBF), and determine the effect of this on the dough rheological properties. Noodles were obtained through sheeting, steaming and frying process. The IN were characterized for their moisture, fat, resistant starch (RS), texture and color. The proximate composition showed that GBF was rich in ash (3.16%), fiber (8.88%) and RS (45.70%), being an attractive raw material for the production of functional IN. When 10% GBF was added, rheological properties of dough changed because of dilution of gluten, making it weaker, but with enough extensibility and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Functional noodles; Resistant starch; Oil absorption.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600016

Addition of powdered shrimp in the formulation of snacks
Provedor de dados: 124
Autores: Costa,Janaina de Paula da; Oliveira,Dalany Menezes; Marques,Diego Rodrigues; Monteiro,Antonio Roberto Giriboni; Costa,José Maria Correia da.
ABSTRACT The aim of this study was to evaluate the acceptability of corn snacks containing different concentrations of powdered shrimp. Five snack formulations were prepared: the control (with no powdered shrimp), F1, F2, F3 and F4, with the addition of 2%, 4%, 8% and 16% powdered shrimp respectively. The raw materials were subjected to a process of thermoplastic extrusion in a single-screw extruder with 3 mm radial die. The snacks produced were evaluated for their centesimal composition, the mineral content was quantified and qualified, and the snacks then submitted to sensory analysis. The sensory parameters under evaluation were: flavour, aroma, colour, texture, overall acceptance, ideal shrimp taste and purchase intention, carried out by a panel of 107...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Snack; Litopenaeus vannamei; Sensory acceptability.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300387

Addition of residues and reintroduction of microorganisms in Jatropha curcas cultivated in degraded soil
Provedor de dados: 91
Autores: Santos,Adriana A.; Agustini,José A.; Maltoni,Katia L.; Cassiolato,Ana M. R.
ABSTRACT The aim of this study was to evaluate, through mycorrhization (root colonization and number of spores of arbuscular mycorrhizal fungi - AMF), leaf acid phosphatase and soil chemical characteristics, the effects of the addition of residues (macrophytes and ash), hydrogel and the reintroduction of microorganisms in a degraded area cultivated with jatropha. Degradation occurred when the surface soil was removed during the construction of a hydroelectric power plant. The experiment was set in a randomized block design, using a 2 x 2 x 4 factorial scheme, i.e., two inoculation treatments (with and without soil-inoculum), two hydrogel treatments (with and without) and four with the addition of residues (macrophytes - MAC, ash, MAC + ash and control,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jatropha curcas L.; Arbuscular mycorrhiza; Hydrogel; Macrophytes; Cerrado.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000400372

Addition of Urease Inhibitor Has No Effect on Ammonia Volatilization Following Soil Application of Poultry Litter or Organomineral Fertilizer, Unlike Urea
Provedor de dados: 90
Autores: Lourenço,Késia Silva; Ernani,Paulo Roberto; Corrêa,Juliano Corulli; Molin,Sulian Junkes Dal; Lourenço,Lucas Silva.
ABSTRACT Quantification of ammonia volatilization after addition of animal residues and nitrogen (N) mineral fertilizers to the soil is important for N management in fertilization programs. The objective of this study was to evaluate the effect of adding a urease inhibitor to N fertilizers to minimize ammonia losses following soil application. The experiment was carried out in a laboratory with samples of a Brazilian Oxisol containing 790 g kg-1 clay and 23 g kg-1 organic matter. Treatments consisted of addition of poultry litter (PL), organic mineral fertilizer (OMF) and urea to the soil, with and without the urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT), plus a control with no fertilizer. We applied the fertilizers over the soil surface,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal waste; Nitrogen fertilizers; Surface fertilization.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100540

Addition of waste and introduction of microorganisms after 45 years of soil degradation
Provedor de dados: 124
Autores: Santos,Adriana Avelino; Agustini,José Antônio; Maltoni,Kátia Luciene; Cassiolato,Ana Maria Rodrigues.
ABSTRACT The construction of hydroelectric power plants (HPP) may result in environmental problems, such as extensive areas of exposed subsoil and conditions of extreme degradation. These areas require alternative that minimize impact and allow partial recovery of their ecosystem functions and vegetation. This study aimed to evaluate the effects of residue addition (organic/macrophytes - OR and inorganic/ash - AR), hydrogel, and inoculation of microorganisms in degraded soil, cultivated with Jatropha curcas, through fertility and microbial activity. A conserved Cerrado ("savannah") soil was the source of microorganisms - mainly mycorrhizal fungi. The experiment was conducted for 12 months (during 2010/2011) at the farm of UNESP-School of Engineering/Campus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jatropha curcas; Macrophytes; Sugar cane ash; Hydrogel; Cerrado; Microbial activity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000300363

Additional feeding during late gestation improves initial litter weight of lactating sows exposed to high ambient temperature
Provedor de dados: 96
Autores: Choi,Yo Han; Hosseindoust,Abdolreza; Kim,Min Ju; Kim,Kwang Yeol; Lee,Jun Hyung; Kim,Young Hwa; Kim,Jin Soo; Chae,Byung Jo.
ABSTRACT The present study investigated the impacts of additional feeding (AF; containing 16% excess feed than control diet in the last two weeks of gestation) during late gestation period and different backfat thickness (BFT) including low (&lt;20 mm) and high (≥20 mm) backfat on reproductive performance, litter size, blood metabolites, hormonal profiles, colostrum, and milk composition of sows from day 90 of gestation to farrowing, and from farrowing to weaning during summer (average 28.3 °C). Fifty-four crossbred sows (Yorkshire × Landrace) were allotted to one of four treatments according to a 2×2 factorial arrangement. There was no AF×BFT interaction for any of the measured variables. The body weight change of sows was decreased for &lt;20 mm in BFT...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Backfat thickness; Gestating sows; Heat stress; Reproductive traits.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100522

Additive containing homo and heterolactic bacteria on the fermentation quality of maize silage - doi: 10.4025/actascianimsci.v35i4.18833
Provedor de dados: 2
Autores: Junges, Daniel; Universidade de São Paulo; Schmidt, Patrick; Universidade de São Paulo; Novinski, Charles Ortiz; Universidade Federal do Paraná; Daniel, João Luiz Pratti; Universidade de São Paulo.
This trial evaluated the addition of Lactobacillus plantarum, L. brevis and Enterococcus faecium combo additive against a control treatment. The silages were made in laboratory silos that were stored for 30, 60, 90 or 120 days before opening. We evaluated the chemical composition of the forage before and after ensiling and the fermentative losses of silages. The additive decreased (p &amp;lt; 0.01) effluent production (11.4 kg ton-1) compared to control silage (14.0 kg ton-1), but it increased (p &amp;lt; 0.01) the Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) from 45.6% and 24.5% to 47.0 and 25.1% for control and additive silages, respectively. The storage periods affected (p &amp;lt; 0.01) effluent production, Dry Matter Losses (DML), NDF,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 4.03.05.00-7; Zootecnia; Forragicultura  silagem  alimentação animal aerobic stability; Effluent  gases; Lactobacillus brevis; Lactobacillus plantarum; Losses Aerobic stability; Effluent; Gases; Lactobacillus brevis; Lactobacillus Plantarum; Losses.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18833

Additive effect of pulp pequi oil (Caryocar brasiliense Camb.) on the biocompatibility of collagen and gelatin membranes in subcutaneous implants
Provedor de dados: 45
Autores: Rabbers,A.S.; Rabelo,R.E.; Oliveira,L.P.; Ribeiro,M.; Martins,V.C.A.; Plepis,A.M.G.; Vulcani,V.A.S.
ABSTRACT Trauma or disease inflicted by tissue injuries may cause tissue degeneration. The use of biomaterials for direct or indirect repair has emerged as a promising alternative, and has become an important research topic. The pequi fruit (Caryocar brasiliense Camb.) has shown antifungal, antibacterial, anti-inflammatory, healing, antitumor, and antioxidant properties. The objective of this study was to develop a new biomaterial using a combination of collagen, gelatin, and pulp pequi oil, and to evaluate its biocompatibility in comparison with that of biomaterials produced without pulp pequi oil. Membranes were prepared from a mixture of bovine tendon collagen, commercial gelatin, and pulp pequi oil. The inflammatory and cicatricial processes were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pequi oil; Membranes collagen; Tissue injuries.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000300811

Additive transcriptomic variation associated with reproductive traits suggest local adaptation in a recently settled population of the Pacific oyster, Crassostrea gigas
Provedor de dados: 5
Autores: Sussarellu, Rossana; Huvet, Arnaud; Lapegue, Sylvie; Quillen, Virgile; Lelong, Christophe; Cornette, Florence; Jensen, Lasse Fast; Bierne, Nicolas; Boudry, Pierre.
Background Originating from Northeast Asia, the Pacific oyster Crassostrea gigas has been introduced into a large number of countries for aquaculture purpose. Following introduction, the Pacific oyster has turned into an invasive species in an increasing number of coastal areas, notably recently in Northern Europe.  Methods To explore potential adaptation of reproductive traits in populations with different histories, we set up a common garden experiment based on the comparison of progenies from two populations of Pacific oyster sampled in France and Denmark and their hybrids. Sex ratio, condition index and microarray gene expression in gonads, were analyzed in each progeny (n = 60).  Results A female-biased sex-ratio and a higher condition index were...
Tipo: Text
Palavras-chave: Crassostrea gigas; Adaptation; Invasiveness; Fertility; Sex-ratio; Transcriptome; Microarray.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00287/39829/38343.pdf

ADDITIVE VERSUS PROPORTIONAL PEST DAMAGE FUNCTIONS: WHY ECOLOGY MATTERS
Provedor de dados: 31
Autores: Mitchell,   Paul D.
Economic analyses of pests typically assume damage is either additively separable from pest free yield or proportional to it.  This paper describes the ecological assumptions required for additive and proportional damage functions to demonstrate that both specifications are reasonable.  Ecological research supports a proportional damage function for competitive pests such as weeds, while for insect pests the appropriate damage function depends on the level of pest free yield.  Theoretical analysis identifies differences between additive and proportional damage functions in terms of the impact of pest control on output variance and the concavity of output in the pest control input.
Tipo: Conference Paper or Presentation
Palavras-chave: Pest Economics; Damage Function; Damage Control; Risk Reducing Input; Increasing Returns; Functional Response; Crop Production/Industries; Environmental Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/20775

Additives in ensiling palisade grass managed under grazing intensities
Provedor de dados: 2
Autores: Macedo, Felipe Barros; Luz, Pedro Henrique de Cerqueira; Faria, Letícia de Abreu; Braga, Gustavo José; Peternelli, Maurício; Herling, Valdo Rodrigues.
Conservation of summer forage excess represents a management strategy to meet animals' needs for dry matter in the shortage period, but has been poorly studied. Silage can be used for this purpose. This study analyzed the production of palisade grass silage from pasture subjected to different grazing intensities with and without additive, determining losses by gases and effluents and chemical composition of silage. The experiment was a 4 x 3 factorial completely randomized design, with four replications. The factors were: 1st – herbage allowance of 5% (5 kg dry matter 100 kg-1 of animal weight day-1), 10, 15 and 20%. The pasture was managed under rotational stocking with 35-day grazing cycles (7 days of occupation and 28 days of rest) and 2nd - additives:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inoculant; Herbage allowance; Citrus pulp; Silage; Experimental silo.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27590

Adenosine A1 receptor-mediated inhibition of in vitro prolactin secretion from the rat anterior pituitary
Provedor de dados: 56
Autores: Picanço-Diniz,D.L.W.; Valença,M.M.; Antunes-Rodrigues,J.
In previous studies, we demonstrated biphasic purinergic effects on prolactin (PRL) secretion stimulated by an adenosine A2 agonist. In the present study, we investigated the role of the activation of adenosine A1 receptors by (R)-N6-(2-phenylisopropyl)adenosine (R-PIA) at the pituitary level in in vitro PRL secretion. Hemipituitaries (one per cuvette in five replicates) from adult male rats were incubated. Administration of R-PIA (0.001, 0.01, 0.1, 1, and 10 µM) induced a reduction of PRL secretion into the medium in a U-shaped dose-response curve. The maximal reduction was obtained with 0.1 µM R-PIA (mean ± SEM, 36.01 ± 5.53 ng/mg tissue weight (t.w.)) treatment compared to control (264.56 ± 15.46 ng/mg t.w.). R-PIA inhibition (0.01 µM = 141.97 ± 15.79...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyclopentyltheophylline; Dibutyryl cAMP; R-PIA; Pertussis toxin; Cholera toxin.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006001100013

Adenovirus-mediated transfer of siRNA against survivin enhances the radiosensitivity of human non-small cell lung cancer cells
Provedor de dados: 17
Autores: Cheng-Ta Yang; Jhy-Ming Li; Hsu-Huei Weng; Ya-Chin Li; Miao-Fen Chen.
Expression of survivin has been reported to be correlated with shorter survival in patients with non-small cell lung cancer (NSCLC), and overexpression of survivin may lead to radioresistance in various human cancers. In this study, we inhibited survivin expression by using an adenoviral vector (AdsiSurvivin)-mediated RNAi to elucidate the combined effect of survivin-targeting gene therapy and radiotherapy on the NSCLC cells. Our data revealed that AdsiSurvivin exerted survivin gene silencing, induced apoptosis, and significantly attenuated the growth potential in NSCLC cells within 72 hours after infection. The combined treatment modalities with AdsiSurvivin infection and radiation were significantly more potent on cell-growth inhibition than monotherapy....
Tipo: Manuscript
Palavras-chave: Cancer; Molecular Cell Biology.
Ano: 2008
URL: http://precedings.nature.com/documents/2589/version/1

Adequacy of pseudo-direct georeferencing of terrestrial laser scanning data for coastal landscape surveying against indirect georeferencing
Provedor de dados: 5
Autores: Jaud, Marion; Letortu, Pauline; Augereau, Emmanuel; Le Dantec, Nicolas; Beauverger, Mickael; Cuq, Veronique; Prunier, Christophe; Le Bivic, Rejanne; Delacourt, Christophe.
The georeferencing process is crucial to the accuracy of terrestrial laser scanner (TLS) data, in particular in the context of diachronic studies relying on multi-temporal surveys. The use of Ground Control Points in the georeferencing process can however be complex when confronted with the practical constraints of coastal surveying. A simple and quick alternative method called "pseudo-direct georeferencing" is proposed in the present paper. This method involves internal inclinometers to measure roll and pitch angles and a centimetric GPS to measure the position of the TLS center and the position of one backsight target. When assessing the transformational uncertainty by using a set of independent ground validation points for both classical indirect and...
Tipo: Text
Palavras-chave: Terrestrial laser scanning; Coastal monitoring; Direct georeferencing; Indirect georeferencing; Multi-temporal surveys; Geomorphological evolution.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00638/75050/75683.pdf

Adequacy of the overall control system
Provedor de dados: 21
Autores: Stolze, Matthias; Huber, Beate; Neuendorff, Jochen.
Adequacy of the overall control system.
Tipo: Report chapter
Palavras-chave: Policy environments and social economy; European Union; Regulation.
Ano: 2013
URL: http://orgprints.org/28810/1/stolze-etal-2013-marekt-and-income-report-chap8_en.pdf

Adherence to medication before and after the use of a Drug-Dispensing System with usage control
Provedor de dados: 60
Autores: Vieira,Liliana Batista; Ueta,Julieta; Pereira,Leonardo Régis Leira.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Medication/treatment adherence; Medicines/safety use; Medicines/dispensing; Drug-Dispensing System and Use Control; Polymedication.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502015000200329

Adhesion of the human pathogen Sporothrix schenckii to several extracellular matrix proteins
Provedor de dados: 56
Autores: Lima,O.C.; Figueiredo,C.C.; Pereira,B.A.S.; Coelho,M.G.P.; Morandi,V.; Lopes-Bezerra,L.M.
The pathogenic fungus Sporothrix schenckii is the causative agent of sporotrichosis. This subcutaneous mycosis may disseminate in immunocompromised individuals and also affect several internal organs and tissues, most commonly the bone, joints and lung. Since adhesion is the first step involved with the dissemination of pathogens in the host, we have studied the interaction between S. schenckii and several extracellular matrix (ECM) proteins. The binding of two morphological phases of S. schenckii, yeast cells and conidia, to immobilized type II collagen, laminin, fibronectin, fibrinogen and thrombospondin was investigated. Poly (2-hydroxyethyl methacrylate) (poly-HEMA) was used as the negative control. Cell adhesion was assessed by ELISA with a rabbit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sporothrix schenckii; Fibronectin; Laminin; Type II collagen; Adhesion.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000500020

Adhesive properties of an outer structure of Clostridium perfringens type A isolated from piglets with with catarrhal enteritis
Provedor de dados: 59
Autores: Teixeira,Elizabeth Pelosi; Serafim,Marlene Braide; Höfling,Maria Alice Cruz; Yamada,Aureo T.; Castro,Antonio Fernando Pestana de.
One strain (S32) of Clostridium perfringens type A was isolated from a case of catarrhal enteritis of piglets. This strain was able to adhere to HeLa cells showing an adherence index (AI) of 25.15 ± 1.26 (mean ± 1 standard error of the mean). Treatment of the bacterial cells with trypsin (0.25mg/ml) decreased in 70%-80% the AI and metaperiodate (10mg/ml) abolished completely the adherence, suggesting that the structure responsible for this phenomenon was probably a glycoprotein. Heating of bacterial suspensions (100ºC/5 min) before carrying out the adhesion test decreased the AI rendering it equal to the negative controls. Rabbit homologous S32 antiserum inhibited the adherence up to dilutions of 1: 640, at least. The piglet ileal loop assay, carried out...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cl. perfringens type A; Adherence; Fibrillar structure; Enteritis; Piglets.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000300010

Adição de inoculantes microbianos sobre a composição química e perfil fermentativo da silagem de capim-elefante (Pennisetum purpureum, Schum) - DOI: 10.4025/actascianimsci.v25i2.2080
Provedor de dados: 2
Autores: Rodrigues, Paulo Henrique Mazza; USP; Lopes, Thomas Fernandes Teixeira; USP; Andrade, Stefano Juliano Tavares de; USP; Melotti, Laércio; USP; Lucci, Carlos de Sousa; USP; Lima, Felix Ribeiro de; USP; Meyer, Paula Marques; USP.
Foram estudados os efeitos de dois inoculantes microbianos e 1 inoculante enzimo-microbiano no capim-elefante (Pennisetum purpureum, Schum), ensilado em 16 silos experimentais e confeccionados a partir de baldes plásticos portando válvulas. O capim foi cortado aos 97 dias de crescimento, homogeneizado e submetido a tratamentos com 4 repetições: controle, Sil-All&amp;reg; (Streptococcus faecium, Pediococcus acidilactici, Lactobacillus plantarum, amilase, hemicelulase e celulase), Silobac&amp;reg; (L. plantarum, S. faecium e Lactobacillus sp.) e Pioneer 1174&amp;reg; (S. faecium e L. plantarum). Os silos foram abertos após 120 dias para análise da composição bromatológica, perfil fermentativo e estabilidade aeróbia. Embora de magnitude pequena, o...
Palavras-chave: 5.04.00.00-2 Zootecnia bactérias láticas; Ensilagem; Fermentação; Pennisetum purpureum 5.04.00.00-2 Zootecnia.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2080

Adición de ractopamina a dietas con baja proteína formuladas con tres niveles de lisina digestible para cerdos en engorda.
Provedor de dados: 32
Autores: Estrada Godoy, Jesús.
Se ha tratado de encontrar el menor nivel de proteína cruda (PC) en dietas sorgo-pasta de soya adicionada con AA sintéticos que mantenga los resultados productivos de la dieta estándar; también se ha tratado de encontrar un aditivo capaz de mejorar la respuesta productiva de cerdos alimentados con dietas con baja proteína (DBP). Uno de estos aditivos podría ser el compuesto β-adrenérgico Ractopamina (RAC). Por ello, se realizó un experimento para evaluar el comportamiento productivo (ganancia diaria de peso, GDP; consumo de alimento, CAL; conversión alimenticia, CA; ganancia de carne magra, GCM), las características de la canal (área del músculo longissimus, AML; grasa dorsal, GD; porcentaje de carne magra, %CM) y la concentración de urea en plasma de 36...
Palavras-chave: Cerdos; Dietas con baja proteína; Ractopamina; Lisina; Concentración de urea en plasma; Pigs; Low-protein diets; Ractopamine; Lysine; Plasma urea nitrogen concentration.
Ano: 2011
URL: http://hdl.handle.net/10521/442

Adición de ractopamina a dietas con baja proteína formuladas con tres niveles de lisina digestible para cerdos en engorda.
Provedor de dados: 32
Autores: Estrada Godoy, Jesús.
Se ha tratado de encontrar el menor nivel de proteína cruda (PC) en dietas sorgo-pasta de soya adicionada con AA sintéticos que mantenga los resultados productivos de la dieta estándar; también se ha tratado de encontrar un aditivo capaz de mejorar la respuesta productiva de cerdos alimentados con dietas con baja proteína (DBP). Uno de estos aditivos podría ser el compuesto β-adrenérgico Ractopamina (RAC). Por ello, se realizó un experimento para evaluar el comportamiento productivo (ganancia diaria de peso, GDP; consumo de alimento, CAL; conversión alimenticia, CA; ganancia de carne magra, GCM), las características de la canal (área del músculo longissimus, AML; grasa dorsal, GD; porcentaje de carne magra, %CM) y la concentración de urea en plasma de 36...
Palavras-chave: Cerdos; Dietas con baja proteína; Ractopamina; Lisina; Concentración de urea en plasma; Pigs; Low-protein diets; Ractopamine; Lysine; Plasma urea nitrogen concentration.
Ano: 2011
URL: http://hdl.handle.net/10521/442

Adipose tissue is less responsive to food restriction anti-inflammatory effects than liver, muscle, and brain in mice
Provedor de dados: 56
Autores: Antunes,M.M.; de Almeida-Souza,C.B.; Godoy,G.; Crisma,A.R.; Masi,L.N.; Curi,R.; Bazotte,R.B.
High caloric intake promotes chronic inflammation, insulin resistance, and chronic diseases such as type-2 diabetes, which may be prevented by food restriction (FR). The effect of FR on expression of pro-inflammatory and anti-inflammatory genes in adipose tissue, liver, muscle, and brain was compared. Male Swiss mice were submitted to FR (FR group) or had free access to food (control group) during 56 days. The liver, gastrocnemius muscle, brain, and epididymal white adipose tissue (WAT) were collected for analysis of gene expressions. FR attenuated inflammation in the liver, brain, and gastrocnemius muscle but did not markedly change inflammatory gene expression in epididymal WAT. We concluded that adipose tissue was less responsive to FR in terms of gene...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caloric restriction; Pro-inflammatory cytokines; Anti-inflammatory cytokines; Acetyl-CoA carboxylase; Disease prevention.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000100612

Aditivos vs teores de concentrado na ração de bubalinos e bovinos: digestibilidade in vitro da matéria seca - DOI: 10.4025/actascianimsci.v29i4.1008
Provedor de dados: 2
Autores: Beleze, Juliano Ricardo Fontanini; UEM; Zeoula, Lúcia Maria; UEM; Jacobi, Guido; UEM; Candêo Filho, Sergio Luiz; UEM; Kazama, Ricardo; UEM; Paula, Meiby Carneiro de; UEM.
Avaliou-se a digestibilidade in vitro da matéria seca (DIVMS) de rações com cinco teores de concentrado (0, 5, 10, 20 e 50%) e ausência ou presença de aditivos (rações- testemunha, com ionóforo (Rumensin&amp;reg;) e com probiótico (Beef-sacc)), consistindo  um fatorial de 5 x 3. Também, foi avaliada a DIVMS de rações com 50:50% volumoso:concentrado, sem e com a adição de ionóforo, probiótico e antibiótico promotor de crescimento (BMD&amp;reg;) e sua combinação, perfazendo oito rações com quatro repeticões, em delineamento inteiramente casualizado. Em todas as rações avaliadas, foi utilizado liquído ruminal de um bovino e de um bubalino. Para as duas espécies, houve interação (p &lt; 0,01) para os teores crescentes de concentrado e aditivos. Para os...
Palavras-chave: 5.04.03.00-1    Nutrição e Alimentação Animal antibiótico; Bovinos; Bubalinos; Ionóforo; Probiótico 5.04.03.00-1    Nutrição e Alimentação Animal.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1008

Adjustment in real time (mode A) of the Coriolis Argo-O2 floats
Provedor de dados: 5
Autores: Coriolis Argo DAC quality control group.
This document presents the adjustment in real time (mode A) of the Coriolis BGC-Argo Oxygen floats. This procedure is applied if no previous delayed-mode adjustment is available. It is an automatic procedure implemented at the Coriolis DAC level. DAC: Data Assembly Centre for Argo floats
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00655/76709/77871.pdf

Adjustment Policies in Europe
Provedor de dados: 31
Autores: Cahill,   Carmel.
This paper is focussed on a set of policies, some specifically agricultural, others taking the form of special provisions within, or exceptions to, economy wide measures that affect adjustment in the agricultural sector in a selection of European countries. The policies are those that affect entry to and exit from the sector and cover measures affecting both land and labour. These are predominantly taxation and social security measures (including specifically agricultural early retirement schemes), and the plethora of other laws and regulations that control land purchase, lease and conversion. The choice of countries has been determined mainly by the availability of information (France, Germany, Ireland, Norway), but those singled out for detailed...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 2003
URL: http://purl.umn.edu/15745

ADJUVANTS IN FUNGICIDE SPRAYING IN WHEAT AND SOYBEAN CROPS
Provedor de dados: 70
Autores: Garcia,Luiz C.; Machado Júnior,Carlos R.; Bochnia,Giovana P.; Weirich Neto,Pedro H.; Raetano,Carlos G.
ABSTRACT The objective of this study was to determine whether the combination of adjuvants to fungicides significantly alters the spray physicochemical characteristics, and potentiates the chemical control of foliar diseases, in that it may affect yield components in wheat (Triticum aestivum) and soybean (Glycine max). The experimental design was completely randomized for the spray physicochemical characteristics, and randomized blocks for the culture variables analyzed, with four treatments and five replications. Treatments consisted of control (no fungicide spraying in the shoot), with fungicides only in plant shoots, fungicides + 0.25% of the spray with adjuvant of methyl ester base of soybean oil, and fungicides + 0.05% of the spray with adjuvant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Disease; Glycine max; Application technology; Triticum aestivum.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601110

Adjuvants to Improve Phenmedipham + Desmedipham + Ethofumesate Efficacy Against Weeds in Sugar Beet (Beta vulgaris)
Provedor de dados: 87
Autores: IZADI-DARBANDI,E.; ALIVERDI,A.; ANABESTANI,M.; SHAMSABADI,A.
ABSTRACT: The efficacy of reduced (411.5 and 617.2 a.i. ha-1) and recommended (823.0 g a.i. ha-1) rates of phenmedipham + desmedipham + ethofumesate on the control of Amaranthus retroflexus, Amaranthus blitoides, Chenopodium album, and Tribulus terrestris in sugar beet field was investigated when they were tank-mixed with and without Adigor (0.5% v/v), Ammonium sulphate (2% v/v), Citogate (0.2% v/v), D-Octil (0.3% v/v), Hydro-Max (0.5% v/v), and Volck (0.5% v/v). When the herbicide was applied alone, there was no significant difference between the rates of 617.2 and 823.0 g a.i. ha-1 for reduction of total weed density and biomass. Significantly, the adjuvants decreased total weed density and biomass. However, there was no significant difference among the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Activator adjuvant; Herbicide mixture; Surfactant.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100221

Administração de somatotropina bovina no período pré-parto sobre parâmetros produtivos, sanitários e reprodutivos da primeira lactação de vacas holandesas
Provedor de dados: 2
Autores: Corassin, Carlos Humberto; USP; Coldebella, Arlei; USP; Meyer, Paula Marques; USP; Machado, Paulo Fernando; USP; Soriano, Sérgio; FAZENDA COLORADO - ARARAS/SP; Cassoli, Laerte Dagher; USP; Sobreira, Antônio Carlos; FAZENDA COLORADO - ARARAS/SP.
Para avaliar a administração de somatotropina bovina (bST) no período pré-parto, sobre o desempenho na primeira lactação, foram utilizadas 18 novilhas gestantes, de modo que 9 receberam injeções subcutâneas de 500mg de bST nos dias 21 e 9 antes da data prevista para o parto. Os animais foram alimentados com dieta total, 2 vezes ao dia, e os dados coletados foram relativos a parâmetros sanitários, produtivos e reprodutivos na primeira lactação. A administração de bST não afetou os parâmetros sanitários (retenção de placenta, metrite, deslocamento de abomaso, febre do leite e cetose) e reprodutivo (cisto folicular). Entretanto, o uso de bST no pré-parto levou à variação de escore de condição corporal (ECC) 65% maior, adiantou o pico de produção de leite em...
Palavras-chave: 5.04.00.00-2    Zootecnia bST; Distúrbio metabólico; Escore de condição corporal; Novilha; Produção de leite; Sanidade 5.04.00.00-2    Zootecnia.
Ano: 2002
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2524

Administração de tanino condensado a cada 21 dias para o controle da verminose ovina.
Provedor de dados: 14
Autores: BENAVIDES, M. V.; GENRO, T. C. M.; SOUZA, C. J. H. de.
Dezenove ovinos jovens recém-desmamados (fêmeas com 23,7 ± 4,36 kg de média de peso vivo) foram divididos em dois grupos: um grupo com administração de extrato de tanino condensado de Acacia mearnsii a cada 21 dias em um total de 3 administrações com 21 dias de intervalo entre elas e o outro sem a administração de tanino, ambos grupos receberam 1,5% do peso vivo em milho quebrado. O período experimental foi de 9 semanas. A porcentagem de tanino na dieta foi de 4,9% na matéria seca, sendo que os dois grupos pastejaram na mesma área de campo. Coletas de amostras de fezes para a contagem do número de parasitos e de sangue para determinação de volume globular foram realizadas semanalmente e o peso corporal foi avaliado a cada 21 dias. Animais com volume...
Tipo: Folhetos
Palavras-chave: Ovino; Verminose; Tanino; Extrato Vegetal; Alimento Alternativo.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1144749

ADMINISTRACIÓN PARA EL DESARROLLO LOCAL: EXPERIENCIAS DE PRODUCTORES DE HORTALIZAS EN LA REGIÓN III FRONTERIZA DE CHIAPAS
Provedor de dados: 31
Autores: Gomez Carreto,   Tlillalcapatl; Mena Cruz,   Rosa Carmina; Moreno Vidal,   Rocío.
This paper is meant to share results with the academic community, specialists and agricultural management experts, this results are related to the Project “Análisis y Propuestas para el Desarrollo Organizacional de la Integradora de la Frontera Sur, S.A. de C.V.” (Analysis and proposals for the Organization Development of Integradora de la Frontera Sur, S.A. de C.V.). This project was sponsored by Universidad Autónoma de Chiapas and by Campesinos Unidos de Comitán, which is a private association of producers. This borderland is located in southern Mexico in the State of Chiapas and specifically in the municipalities of Tzimol, La Trinitaria, Comitán y La Independencia, where the producers organization has its own greenhouses and commercialization places....
Tipo: Article
Palavras-chave: Control for sales; Human resources; Induction; Chiapas; Vegetable producers; Local development; Actor oriented development; Social capital.; Agribusiness.
Ano: 2012
URL: http://purl.umn.edu/120306

Administration of interferon-g to pregnant rats reverses the depressed adjuvant-induced arthritis of their chronically Trypanosoma cruzi-infected offspring
Provedor de dados: 56
Autores: Didoli,G.; Revelli,S.; Davila,H.; Ferro,M.E.; Romero-Piffiguer,M.; Bottasso,O.
We demonstrated that administration of interferon gamma (IFN-&lt;FONT FACE="Symbol"&gt;g&lt;/font&gt;) to the inbred "l" strain of pregnant rats conferred partial resistance on their offspring to challenge with Trypanosoma cruzi. We now examine if this intervention also modifies the reportedly immunodepressed cellular responses which occur during chronic infection. Offspring were born to mothers undergoing one of the following procedures during gestation: subcutaneous injections of recombinant rat IFN-&lt;FONT FACE="Symbol"&gt;g&lt;/font&gt;, 50,000 IU/rat, five times/week for 3 weeks, which was started on the day of mating (IFN-Mo); infection with 106 trypomastigotes of T. cruzi at 7, 14, and 21 days after mating plus IFN-&lt;FONT...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Interferon gamma; Adjuvant arthritis; T. cruzi; T cell subsets.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000600011

Administration of Silver Fir (Abies alba Mill.) to goats and its potential to control gastro-intestinal parasites
Provedor de dados: 21
Autores: Heckendorn, F.; Giebler-Schubert, F.; Walkenhorst, M.; Fertig, O.; Hamburger, M.; Potterat, O.; Valle-Zárate, A.
Gastrointestinal nematodes (GIN) substantially impact on goat health. Because of the widespread development of GIN, resistant to allopathic drugs, further research into alternative parasite control methods is required [1]. Silver fir, Abies alba MILL (SF), is traditionally used by Swiss farmers in order to control GIN infections of goats but also to improve animal welfare. A survey among goat farmers revealed that goat farmers use SF in winter during a period of approximately five months. The SF-ration per animal and day differ between approximately 8.2 g dry matter (DM) to 600 g DM [2].    As there is scientific evidence neither for an anthelmintic potential nor for the feed intake and milk performance of SF, we conducted a study with 30 goats. For a 20...
Tipo: Conference paper, poster, etc.
Palavras-chave: Feeding and growth; Sheep and goats; Health and welfare.
Ano: 2013
URL: http://orgprints.org/23306/1/Silver_Fir_Planta_Medica_2013_79_1239.pdf

Adopción de medios biológicos para el control de plagas en el sector cooperativo campesino.
Provedor de dados: 122
Autores: O´Reilly Morris, Elvira.
Aborda la problemática de la adopción de medios biológicos en el sector cooperativo campesino en el Consejo Popular Campo Florido del municipio Habana del Este en la provincia Ciudad Habana. Relaciona el grado de adopción de medios biológicos por parte de los agricultures y la percepción y capacitación que los agricultures tienen respecto a la importancia de esos medios para enfrentar la situación de las plagas.
Tipo: Tesis
Palavras-chave: CONTROL DE PLAGAS; TÉCNICAS AGROECOLÓGICAS; MEDIOS BIOLÓGICOS.
Ano: 2006
URL: http://hdl.handle.net/10469/1208

Adopción de tecnología de distribución y control del agua en las Comunidades de Regantes de la Región de Murcia
Provedor de dados: 31
Autores: Alcon,   Francisco; De Miguel,   María Dolores; Burton,   Michael P.
RESUMEN: En el presente trabajo se estudia el proceso de adopción de tecnología de distribución y control de agua que las Comunidades de Regantes de la Región de Murcia han llevado a cabo desde el año 1975 hasta 2005. Se analiza el tiempo que transcurre desde que se constituye la Comunidad de Regantes hasta que toma la decisión de adoptar utilizando Análisis de Duración. Se identifican como aceleradores del proceso de adopción la posesión de un pozo de apoyo, el empleo de un sistema tarifario variable en función del consumo, los efectos de las políticas de subvenciones a las obras de modernización y mejora de los regadíos y las sequías.  SUMMARY: The present paper analyses the process of adopting water management and control technology in the irrigation...
Tipo: Journal Article
Palavras-chave: Análisis de duración; Comunidad de regantes; Función de riesgo; Tecnología de riego; Irrigation community; Hazard function; Irrigation technology; Duration analysis; Agribusiness; Research and Development/Tech Change/Emerging Technologies; Q16; Q25; D71.
Ano: 2008
URL: http://purl.umn.edu/37190

ADOPTION OF BACKGROUNDING ON COW-CALF FARMS
Provedor de dados: 31
Autores: Popp,   Michael P.; Faminow,   Merle D.; Parsch,   Lucas D.
A discrete choice model is used to analyze the decision to feed or sell calves at weaning.  After accounting for regional factors, results show that operator perceptions toward profitability, risk, and facilities as well as control over production and attention to marketing impacted retained ownership of calves.  Farm size had a minimal impact.
Tipo: Conference Paper or Presentation
Palavras-chave: Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/20800

Adoption of Best Management Practices to Control Weed Resistance By Cotton, Corn, and Soybean Growers
Provedor de dados: 31
Autores: Frisvold,   George B.; Hurley,   Terrance M.; Mitchell,   Paul D.
This study examined adoption of ten best management practices (BMPs) to control weed resistance to herbicides. Using data from a survey of 1,205 U.S. cotton, corn, and soybean growers, count data models were estimated to explain the total number of practices frequently adopted. Ordered probit regressions were used to explain the frequency of individual BMP adoption. Growers practicing a greater number of BMPs frequently (a) had more education, but less farming experience; (b) grew cotton, (c) expected higher yields relative to the county average; and (d) farmed in counties with a lower coefficient of variation (CV) for yield of their primary crop. Yield expectations and variability were significant predictors of the frequency of adoption of individual...
Tipo: Conference Paper or Presentation
Palavras-chave: Weeds; Herbicide; Resistance management; Corn; Cotton; Soybeans; Adoption; Crop Production/Industries; Farm Management; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q12; Q16.
Ano: 2009
URL: http://purl.umn.edu/49432

Adoption of Bt Cotton: Threats and Challenges
Provedor de dados: 117
Autores: Faisal Bilal,Muhammad; Farrukh Saleem,Muhammad; Ashfaq Wahid,Muhammad; Shakeel,Amir; Maqbool,Mudassar.
Adopting new technology always involves advantages and risks; Bt cotton (Gossypium hirsutum L.) is a new technology well known in developed countries for its many advantages, such as reduced pesticide application, better insect pest control, and higher lint yield. However, its success in developing countries is still a question mark. Global adoption of Bt cotton has risen dramatically from 0.76 million ha when introduced in 1996 to 7.85 million ha in the 2005 cotton-growing season where 54% of the cotton crops in the USA, 76% in China, and 80% in Australia were grown with single or multiple Bt genes. Bollworms are serious cotton pests causing 30-40% yield reduction in Pakistan and 20-66% potential crop losses in India. The major advances shown in this...
Tipo: Journal article
Palavras-chave: Bt cotton; Management; Gossypium hirsutum.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300017

Adoption of cleaner production practices by dairy farmers in southern Chile
Provedor de dados: 118
Autores: Nahuelhual,Laura; Engler,María A; Carrillo,Bernardo; Moreira,Víctor; Castro,Ingrid.
Rising concerns about the environmental costs of dairy production have resulted in an increasing use of farm practices that diminish negative production externalities. Yet, little empirical evidence exists regarding the factors influencing the adoption of pollution-reducing strategies by dairy farmers. In this study, we estímate a logit probability model to explain first-stage adoption of capital-intensive cleaner production (CP) practices, using a sample of 100 médium and large-size dairy farms located in southern Chile. Voluntary approaches to pollution control in agriculture are relatively recent in Chile and diffusion has been slow and uneven among farmers. Only 43% of the farmers surveyed were using some CP practices at the time of the interview. The...
Tipo: Journal article
Palavras-chave: Chilean dairy sector; Dairy-derived pollution; Dairy farming; Environmental management; Technology innovation.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000100009

Adoption of Maize Conservation Tillage in Azuero, Panama
Provedor de dados: 31
Autores: de Herrera,   Adys Pereira; Sain,   Gustavo.
An aggressive research and validation program launched in 1984 in Azuero, Panama, yielded a recommendation advocating zero tillage for maize production. Ten years later, maize farmers in Azuero used three land preparation methods: conventional tillage, zero tillage, and minimum tillage (an adaptation of the zero tillage technology). This study aimed to quantify the adoption of zero and minimum tillage for maize in Azuero; identify factors influencing adoption of the different land preparation practices; and analyze the implications of the findings for future maize research and extension. Between 1985 and 1994, farmers in Region I of Azuero changed from conventional tillage to zero (33%) and minimum tillage (43%). In Regions II and III, most farmers still...
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1999
URL: http://purl.umn.edu/7696

Adoption of Pollution Prevention: The Role of Information Spillover, Mandatory Regulation, and Voluntary Program Participation
Provedor de dados: 31
Autores: Bi,   Xiang; Deltas,   George; Khanna,   Madhu.
Interest in promoting Pollution Prevention (P2) has been increasing since 1991, following the passage of the Pollution Prevention Act (PPA) of 1990. As part of the PPA, facilities that are subject to the Toxics Releases Inventory (TRI) are required to disclose the number of incremental P2 activities for each listed chemicals from 1991 onward. Though the disclosure is required by the PPA, the adoption of P2 remains a voluntary initiative by firms. To promote P2 ethic among firms, the U.S.EPA has established several voluntary programs and P2 information clearinghouse. P2 technologies were more likely to be facility- and operation- specific and involved considerable information costs and uncertainty. Firms might learn about P2 technologies from their peers...
Tipo: Conference Paper or Presentation
Palavras-chave: Pollution prevention; Toxics Release Inventory (TRI); Voluntary 33/50 program; Information spillover; Environmental Economics and Policy; Q55; C21; L51.
Ano: 2011
URL: http://purl.umn.edu/103741

ADOPTION OF PRECISION AGRICULTURE TECHNOLOGY IN MISSISSIPPI
Provedor de dados: 31
Autores: Hudson,   Darren; Hite,   Diane.
Precision application technology has been an important topic in agriculture in recent years.  This technology has the promise to improve farm management through improved information and control over in-field variability of soil characteristics and productivity.  Despite this apparent promise, recent studies have shown that adoption has been low.  However, little is known about the adoption of this technology in Mississippi or the reasons for or against adoption as seen through the eyes of the producer.  This survey was designed to collect basic information on producer perceptions about precision agriculture technology and to assess potential reasons for or against adoption.
Tipo: Working or Discussion Paper
Palavras-chave: Production Economics.
Ano: 2001
URL: http://purl.umn.edu/15787

Adoption of Soil Erosion Control Practices in Southern Spain Olive Groves
Provedor de dados: 31
Autores: Franco,   Juan Agustin; Calatrava-Leyva,   Javier.
This paper presents results from a survey carried out in 2005 among 147 olive tree farmers from the Alto Genil River Basin in Southern Spain regarding the adoption of soil conservation and management practices. Olive tree groves in South-eastern Spain's mountainous areas are subject to a high risk of soil erosion and have to incur in high costs of soil conservation. This results in great difficulties to comply with cross-compliance and to benefit from agri-environmental schemes. Our main objectives are to analyse the current level of adoption of soil conservation practices and to analyse which socio-economic and institutional factors determine such adoption. Three Probit models are estimated. Dependant variables are three different soil conservation...
Tipo: Conference Paper or Presentation
Palavras-chave: Olive groves; Soil erosion; Soil conservation; Cross compliance; Crop Production/Industries; Q12; Q24.
Ano: 2006
URL: http://purl.umn.edu/25787

Adoption of Veterinary Technologies Amongst Sheep and Goat Farmers in Qwawqa, South Africa
Provedor de dados: 31
Autores: Nell,   Wilhelm T.; Schwalbach,   L.
Technological breakthroughs in agriculture after the Second World War mainly concentrated on crop production (wheat, rice, and later maize). In the livestock production sector, besides the substantial improvements in the poultry and dairy production systems, the development of the other livestock technologies was neglected, due to lower returns when compared to those on crop technology. Nevertheless, the usage of livestock veterinary technologies such as veterinary services and medicines remains important for livestock production as animal diseases are a major cause of poor productivity and high mortality rates, which are major constraints to improve food security. The reasons for poor adoption of livestock veterinary technologies amongst livestock farmers...
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management; Livestock Production/Industries.
Ano: 2002
URL: http://purl.umn.edu/6974

ADRB2 polymorphisms predict the risk of myocardial infarction and coronary artery disease
Provedor de dados: 74
Autores: Wang,Dong-Wei; Liu,Min; Wang,Ping; Zhan,Xiang; Liu,Yu-Qing; Zhao,Luo-Sha.
Abstract Recently, the rs1042713 G &gt; A and rs1042714 C &gt; G polymorphisms in the beta-2 adrenergic receptor (ADRB2) gene were shown to be related to atherosclerosis diseases. Therefore, we performed a systemic meta-analysis to determine whether the two functional polymorphisms are related to the risk of myocardial infarction (MI) and coronary artery disease (CAD). We identified published studies that are relevant to our topic of interest. Seven case-control studies, with a total of 6,843 subjects, were incorporated into the current meta-analysis. Our analysis showed a higher frequency of rs1042713 G &gt; A variant in patients with MI or CAD compared to healthy controls. A similar result was also obtained with the rs1042714 C &gt; G variant under both...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beta-2 adrenergic receptor; Genetic polymorphism; Myocardial infarction; Coronary artery disease; Meta-analysis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000400433

Adubação mineral para mandioca e efeito residual no milho em rotação em solo arenoso de Mâncio Lima, Juruá, Oeste do Acre, Sudoeste da Amazônia brasileira.
Provedor de dados: 14
Autores: COSTA, F. de S.; TAVELLA, L. B.; BRAVIN, M. P.; SOUZA, J. F. de; LAMBERTUCCI, D. M.
O parcelamento da adubação mineral no manejo conservacionista do solo sincronizado com a necessidade de nutrientes da mandioca aumenta a sua produção, bem como a de culturas em rotação devido ao efeito residual dessa adubação. São apresentados os resultados dessa hipótese em dois estudos em delineamento experimental de blocos casualizados com quatro repetições. No primeiro estudo foi avaliado o desempenho agronômico da mandioca em resposta à adubação mineral em seis épocas de parcelamento: T1 (controle) - calcário; T2 - calcário + K e P 100% no plantio e com N 100% aos 30 dias após o plantio (DAP); T3 - calcário + K e P 50% no plantio e 50% aos 60 DAP e com N 50% aos 30 DAP e 50% aos 60 DAP; T4 - calcário + K e P 50% no plantio e 50% aos 90 DAP e com N 50%...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Agricultura conservacionista; Yuca; Prácticas de cultivo vegetal; Prácticas de conservación de agrícolas; Cero labranza; Rotación de cultivos; Adubo mineral; Fertilizantes minerales; Maíz; Efectos residuales; Mâncio Lima (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Mandioca; Manihot Esculenta; Milho; Zea Mays; Efeito Residual; Pratica Cultural; Solo Arenoso; Plantio Direto; Rotação de Cultura; Planta de Cobertura; Fertilizante; Cassava; Corn; Residual effects; Plant cultural practices; Agricultural conservation practice; Sandy soils; No-tillage; Crop rotation; Ground cover plants; Mineral fertilizers.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126831

Adubação nitrogenada em cobertura e regulador de crescimento na cultura do algodoeiro em sistema plantio direto.
Provedor de dados: 14
Autores: LAMAS, F. M.; STAUT, L. A.
bitstream/item/39707/1/COT-05-1999.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Growth control; Direct sowing.; Algodão; Adubação; Cerrado; Gossypium Hirsutum; Nitrogênio; Plantio Direto; Regulador de Crescimento.; Cotton; Fertilizers; Nitrogen.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/242153

Adubação nitrogenada no feijoeiro em sistema de semeadura direta e preparo convencional do solo - DOI: 10.4025/actasciagron.v30i5.5967
Provedor de dados: 1
Autores: Gomes Junior, Francisco Guilhien; ESALQ - USP; Sá, Marco Eustáquio de; UNESP; Muraishi, Cid Tacaoca; UNESP.
A aplicação de N em cobertura é indispensável para a obtenção de altas produtividades do feijoeiro e estudos de respostas ao fertilizante em condições de semeadura direta e preparo convencional do solo ainda consistem numa necessidade fundamental. Assim, a pesquisa teve como objetivo avaliar o efeito da aplicação de N e a produtividade do feijoeiro em sistema de semeadura direta e de preparo convencional do solo. O delineamento experimental foi o de blocos casualizados em esquema fatorial (2x8+1) com quatro repetições. Os tratamentos constituíram-se da combinação das doses de 40 e 80 kg ha-1 de N aplicadas em oito épocas do estádio V4 do desenvolvimento vegetativo (V4-3, V4-4, V4-5, V4-6, V4-7, V4-8, V4-9 e V4-10), além da testemunha sem N em cobertura. O...
Palavras-chave: 5.01.03.05-9 Melhoramento Vegetal Phaseolus vulgaris L.; Cobertura morta; Adubo nitrogenado; Fenologia Phaseolus vulgaris L.; Mulching; Nitrogen fertilizer; Phenology.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5967

Adubação residual na produção de mudas clonais de eucalipto
Provedor de dados: 190
Autores: de Cerqueira, Pedro Henrique Alcântara; Azevedo, Gileno Brito de; Souza, Anderson Marcos de; Azevedo, Glauce Taís de Oliveira Sousa.
Apesar do desenvolvimento técnico e operacional dos viveiros clonais ao longo dos anos, os sistemas de retenção de resíduos e efluentes do processo produziram. O objetivo da pesquisa é avaliar o uso de efluente oriundo de minijardim clonal como adubação em mudas clonais de eucalipto. Foram utilizados os clones AEC 144, GG 100 e VM 01. O experimento foi instalado, o envolvimento de diferentes frequências e lâminas de fertirrigação residual, bem como a utilização da adulação convencional, pelo método de tratamento respiratório, sem uso de Adubação. Para o clone AEC 14, os tratamentos com aplicações diárias de efluente, associados às lâminas de 2 e 3 mm, proporcionaram, em geral, maior qualidade das mudas. Resultado parecido foi observado para o clone VM 01,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recursos Florestais; Engenharia Florestal; Produção de mudas; Fertirrigação; Viveiro; Efluentes Fertigation; Nursery; Effluents.
Ano: 2017
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/934

Adubação verde e tratamento químico do solo na produtividade de cenoura no Acre.
Provedor de dados: 14
Autores: NUNES, M. U. C.; MOURA, G. de M.
A incorporação de leguminosas no estadio de floração visa principalmente o aumento de matéria orgânica e nitrogênio. Essa prática beneficia as propriedades físicas, químicas e biológicas do solo, propiciando na maioria dos casos aumento de produtividade da cultura, a seguir implantada. A adubação verde no período da entressafra proporciona maior controle da erosão e da infestação de nematóides, melhora a retenção de água e adubos químicos no solo, controla as plantas daninhas e plantas hospedeiras de pragas e doenças, além dos benefícios acima citados. Em consequência reduz a utilização de insumos como herbicidas, inseticidas, fungicidas, nematicidas e fertilizantes. Os efeitos benéficos da adubação verde sobre a produtividade de diversas culturas como o...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Control biológico; Enfermedades y desórdenes de las plantas; Fertilizantes orgánicos; Zanahorias.; Tratamiento químico; Suelo; Rotación de cultivos; Rendimiento de los cultivos; Propiedades fisicoquímicas; Plantación; Nemátodo parasitario de las plantas; Mucuna pruriens var utilis; Cenoura; Daucus carota; Plantio; Rendimento; Doença de planta; Controle biológico; Nematóide; Meloidoginose; Meloidogyne incognita; Tratamento do solo; Propriedade físico-química; Adubação verde; Rotação de cultura; Mucuna preta; Stizolobium aterrimum; Feijão de porco; Canavalia ensiformis; Crotalária; Cravo da índia; Campo Experimental.; Carrots; Planting; Crop yield; Plant diseases and disorders; Biological control; Crotalaria spectabilis; Plant parasitic nematodes; Soil; Chemical treatment; Physicochemical properties; Organic fertilizers; Crop rotation; Tagetes erecta; Carbofuran.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492337

Adult acclimation to combined temperature and pH stressors significantly enhances reproductive outcomes compared to short-term exposures
Provedor de dados: 5
Autores: Suckling, Coleen C.; Clark, Melody S.; Richard, Joelle; Morley, Simon A.; Thorne, Michael A. S.; Harper, Elizabeth M.; Peck, Lloyd S.
This study examined the effects of long-term culture under altered conditions on the Antarctic sea urchin, Sterechinus neumayeri.Sterechinus neumayeri was cultured under the combined environmental stressors of lowered pH (-03 and -05 pH units) and increased temperature (+2 degrees C) for 2years. This time-scale covered two full reproductive cycles in this species and analyses included studies on both adult metabolism and larval development. Adults took at least 6-8months to acclimate to the altered conditions, but beyond this, there was no detectable effect of temperature or pH. Animals were spawned after 6 and 17months exposure to altered conditions, with markedly different outcomes. At 6months, the percentage hatching and larval survival rates were...
Tipo: Text
Palavras-chave: CO2; Echinoderm; Gonad maturation; Larval development; Oxygen consumption; Vitellogenesis.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00617/72874/71930.pdf

Adult and larval traits as determinants of geographic range size among tropical reef fishes
Provedor de dados: 5
Autores: Luiz, Osmar J.; Allen, Andrew P.; Robertson, D. Ross; Floeter, Sergio R.; Kulbicki, Michel; Vigliola, Laurent; Becheler, Ronan; Madin, Joshua S.
Most marine organisms disperse via ocean currents as larvae, so it is often assumed that larval-stage duration is the primary determinant of geographic range size. However, empirical tests of this relationship have yielded mixed results, and alternative hypotheses have rarely been considered. Here we assess the relative influence of adult and larval-traits on geographic range size using a global dataset encompassing 590 species of tropical reef fishes in 47 families, the largest compilation of such data to date for any marine group. We analyze this database using linear mixed-effect models to control for phylogeny and geographical limits on range size. Our analysis indicates that three adult traits likely to affect the capacity of new colonizers to survive...
Tipo: Text
Palavras-chave: Macroecology; Marine dispersal; Colonization.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00161/27240/25457.pdf

Adult carbohydrate feeding affects reproduction of Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae)
Provedor de dados: 82
Autores: Jordão,Alexandre L; Nakano,Octávio; Janeiro,Vanderly.
Reproduction of most insects depend on nutrients accumulated during the larval stage, but many lepidopteran species will also depend on nutrients obtained at the adult stage. Feeding at the adult stage allows the intake of carbohydrate and amino acid rich solutions, which may have an effect on the species reproduction and population growth. The objectives of the current study were to characterize the effects of sugar consumption by adults of the potato tuber moth, Phthorimaea operculella (Zeller), on its reproduction. To initially test the food intake by adults, a 10% honey solution or water (control), both containing a liquid dye were offered to adult insects 24h after emergence, and the presence of the dye was observed by analysis of their digestive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Color dye; Digestive system; Ovarian development; Reproductive system.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000300001

Adult feeding and mating effects on the biological potential and parasitism of Trichogramma pretiosum and T. acacioi (Hym.: Trichogrammatidae)
Provedor de dados: 52
Autores: Pratissoli,Dirceu; Oliveira,Harley Nonato de; Polanczyk,Ricardo Antonio; Holtz,Anderson Mathias; Bueno,Regiane Cristina Oliveira de Freitas; Bueno,Adeney de Freitas; Gonçalvez,José Roberto.
This work was carried out to study the effects of adult feeding and mating on the biological potential and parasitism of Trichogramma pretiosum and T. acacioi (Hymenoptera: Trichogrammatidae) to improve their use in biological control programs. Both species presented higher parasitism and longevity whenever adults were fed. Fed and unmated T. pretiosum females led to low parasitism whereas T. acacioi females did not present parasitism whatsoever. Egg viability of T. pretiosum was similar for fed and mated individuals, but T acacioi showed lower values for this parameter when unfed and without mating. Unmated females produced only males while mated ones had more than 60% female descendents for both Trichogramma species. Therefore, mated and fed female...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Parasitoid feeding; Parasitoid mating.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500001

Advance automation technologies for sustainable agricultural production
Provedor de dados: 21
To advance the generic science of advanced automation in agriculture with a view to providing the underlying science necessary for increasing productivity, lowering inputs and reducing environmental impact.    To solve the generic scientific problems associated with precision vision guidance spanning multiple drill/planter bouts.    To verify our hypothesis that the proposed sensing and tracking technologies will when developed and integrated form a robust basis for crop protection based on mechanical and chemical precision-banded treatments.    It is our ambition to make vision guided banded treatment the preferred technique for most post emergence crop protection operations.      Objective  1. To develop generic integrated image analysis and Kalman...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds Weed management.
Ano: 2023

Advanced glycation end products (AGEs) and their receptor (RAGE) induce apoptosis of periodontal ligament fibroblasts
Provedor de dados: 56
Autores: Li,D.X.; Deng,T.Z.; Lv,J.; Ke,J.
Diabetics have an increased prevalence of periodontitis, and diabetes is one of the causative factors of severe periodontitis. Apoptosis is thought to be involved in this pathogenic relationship. The aim of this study was to investigate apoptosis in human periodontal ligament (PDL) fibroblasts induced by advanced glycation end products (AGEs) and their receptor (RAGE). We examined the roles of apoptosis, AGEs, and RAGE during periodontitis in diabetes mellitus using cultured PDL fibroblasts that were treated by AGE-modified bovine serum albumin (AGE-BSA), bovine serum albumin (BSA) alone, or given no treatment (control). Microscopy and real-time quantitative PCR indicated that PDL fibroblasts treated with AGE-BSA were deformed and expressed higher levels...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: RAGE; Apoptosis; Diabetes mellitus; Periodontal diseases.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014001201036

Advanced lines of Jalapeño pepper with potential for mechanical harvesting
Provedor de dados: 65
Autores: Gomes,Lucas Matias; Ribeiro,Cláudia Silva da Costa; Ragassi,Carlos Francisco; Silva,Lorena Sousa; Reifschneider,Francisco José Becker.
ABSTRACT:  The objective of this study was to evaluate the plant and fruit characteristics in advanced lines of Jalapeño pepper for mechanical harvesting. Thus, two experiments were carried out in the field. Experiment I (2015) was conducted as a randomized block design (three replications and eight plants per plot) and Experiment II (2016) in a completely randomized design (five replications and ten plants per plot). In 2015, lines CNPH 30,112, CNPH 30,118, CNPH 30,147, CNPH 30,159, CNPH 30,183, and CNPH 30,245 were evaluated, together with the control ‘BRS Sarakura’. Significant differences were detected for fruit and plant characteristics (P&lt;0.05). Lines CNPH 30,118, CNPH 30,147, CNPH 30,159, and CNPH 30,245 were selected based on plant height and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capsicum annuum L.; Capsaicinoids; Breeding; Earliness; Processing; Soluble solids.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200151

Advanced Non-Chemical and Close to Plant Weed Control system for Organic Agriculture
Provedor de dados: 21
Autores: Nørremark, Michael; Swain, Kishore; Melander, Bo.
Use of chemical has been reduced in agriculture for controlling weeds emergence. The use of alternative systems, such as cultural practices (mulching, flame, intercropping etc.) and mechanical system (hoe, tine etc.) has been introduced by various researchers. Automation technique based on sensors controlled system has enhanced the efficiency of the mechanical system for weed control. Mostly, low cost image acquisition sensors and optical sensor to detect the plant ensuring swift operation of vehicles close the crop plants to remove competitive weeds. The available system need to be evaluated to get best possible system for close to plant (CTP) weed removal. In the study various non-chemical weed control measures has been explored and 30 mechanical tools...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2009
URL: http://orgprints.org/20656/4/20656.pdf

Advanced system in wheat: Combination of agronomical levels: The French experiment
Provedor de dados: 21
Autores: PURE, Arvalais – France.
The purpose of this tool is to provide information on the production of wheat without pesticides or fertilizer. The tool suggests crop rotation, timing of seeding and mechanical weed control as solutions to weed management . The target group of the tool is for farmers and crop advisors working in wheat based systems. This tool is for organic producers but may also be used for conventional production as well.    The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7) under the grant agreement n°265865
Tipo: Practice tool
Palavras-chave: Production systems Soil quality Cereals; Pulses and oilseeds Crop health; Quality; Protection Weed management Farm nutrient management.
Ano: 2023
URL: http://orgprints.org/31708/1/Advanced%20system%20in%20wheat.%20Combinaison%20of%20agronomical%20levers.pdf

Advanced thermodynamic and processing modelling integration for amine scrubbing in post-combustion CO~2~ capture
Provedor de dados: 17
Autores: Niall Mac Dowell; Amparo Galindo; Claire S. Adjiman; George Jackson.
The reduction in CO~2~ emissions from anthropogenic sources has become a topic of widespread interest over the past number of years. As the power generation sector is by far the largest stationary-point-source of CO~2~, being responsible for approximately 35% of total global CO~2~ emissions^1^ this question has special relevance for this industry. As the inclusion of carbon capture facilities incurs a significant energy penalty on the efficiency coal-fired power-stations, there is a strong requirement for the improvement of these systems in terms of the minimisation of operation and maintenance costs, capital costs and the maximisation of efficiency and flexibility. This last issue has relevance for start-up times and ramp-rates. Post-combustion capture...
Tipo: Presentation
Palavras-chave: Earth &amp; Environment.
Ano: 2008
URL: http://precedings.nature.com/documents/2638/version/1

Advances and challenges on the in vitro production of secondary metabolites from medicinal plants
Provedor de dados: 75
Autores: Cardoso,Jean Carlos; Oliveira,Maria Eduarda BS de; Cardoso,Fernanda de CI.
ABSTRACT The production of secondary metabolites from medicinal plants, also called Plant-Derived Medicinal Compounds (PDMC), is gaining ground in the last decade. Concomitant to the increase in the knowledge about pharmacological properties of these compounds, horticultural plants are becoming the most important, sustainable and low-cost biomass source to obtain high-complex PDMCs to be used as medicaments. Biotechnological tools, including plant cell and tissue culture and plant genetic transformation, are increasingly being employed to produce high quality and rare PDMC under in vitro conditions. The proper use of these technologies requires studies in organogenesis to allow for better control of in vitro plant development and, thus, to the production...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant-derived medicinal compounds; In vitro cell and tissue culture; Techniques; Biotic and abiotic factors; Biofactories.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000200124

Advances and Perspectives of the use of the entomopathogenic fungi beauveria bassiana and metarhizium anisopliae for the control of arthropod pests in poultry production
Provedor de dados: 89
Autores: Oliveira,DGP; Alves,LFA; Sosa-Gómez,DR.
Global poultry production is plagued by a wide variety of arthropods. The problems associated with their chemical control have led to an increasing search for control alternatives, and entomopathogenic fungi seem to be a promising strategy. Despite the large number of insects and mites considered as important pests in animal production, studies on the use of entomopathogenic fungi for their control are still scarce compared with agricultural pests, particularly in Brazil. This article reviews some damages and control aspects of the main arthropod pests that affect Brazilian poultry production, including house flies, lesser mealworms, and feather mites, by the use of the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae. Studies published...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Microbial control Musca domestica Alphitobius diaperinus Dermanyssus gallinae.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000100001

Advances in apple culture worldwide
Provedor de dados: 94
Autores: Robinson,Terence.
Over the last 60 years, planting densities for apple have increased as improved management systems have been developed. Dwarfing rootstocks have been the key to the dramatic changes in tree size, spacing and early production. The Malling series of dwarfing rootstocks (M.9 and M.26) have been the most important dwarfing rootstocks in the world but are poorly adapted in some areas of the world and they are susceptible to the bacterial disease fire blight and the soil disease complex, apple replant disease which limits their uses in some areas. Rootstock breeding programs in several parts of the world are developing improved rootstocks with resistance to fire blight, and replant disease, and improved cold hardiness and yield efficiency. A second important...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Planting system; Tree density; Tree shape; Rootstock; Light interception; Light distribution; Feathered trees; Tree training; Limb angle; Pruning; Profitability; Genome mapping.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000500006

Advances in gastropod immunity from the study of the interaction between the snail Biomphalaria glabrata and its parasites: A review of research progress over the last decade
Provedor de dados: 5
Autores: Coustau, C.; Gourbal, B.; Duval, D.; Yoshino, T. P.; Adema, C. M.; Mitta, Guillaume.
This review summarizes the research progress made over the past decade in the field of gastropod immunity resulting from investigations of the interaction between the snail Biomphalaria glabrata and its trematode parasites. A combination of integrated approaches, including cellular, genetic and comparative molecular and proteomic approaches have revealed novel molecular components involved in mediating Biomphalaria immune responses that provide insights into the nature of host-parasite compatibility and the mechanisms involved in parasite recognition and killing. The current overview emphasizes that the interaction between B. glabrata and its trematode parasites involves a complex molecular crosstalk between numerous antigens, immune receptors, effectors...
Tipo: Text
Palavras-chave: Biomphalaria glabrata; Schistosoma mansoni; Echinostoma caproni; Immunity; Compatibility.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00276/38718/38622.pdf

Advances in Genomics and Genetics of Penaeid Shrimp
Provedor de dados: 5
Autores: Robalino, Javier; Chapman, Robert W.; De La Vega, Enrique; O'Leary, Nuala A.; Gorbach, Danielle M.; Du, Zhi-qiang; Rothschild, Max F.; Browdy, Craig L.; Warr, Gregory; Labreuche, Yannick.
This chapter contains sections titled:    Introduction    EST Collection as an Approach to Gene Discovery in Shrimp    Medium- to High-Throughput Studies of Differential Expression and Gene Discovery    RNAi-Based Applications in Shrimp Aquaculture: From Reverse Genetics to Control of Diseases    Markers, Genetic Maps, and Large Insert Genomic Libraries in Shrimp    Analytical Challenges in Genomics and Genetics of Shrimp    Concluding Remarks    Acknowledgments    References
Tipo: Text
Palavras-chave: Penaeid shrimp EST collection; Gene discovery gene expression “snapshot” gametogenesis abiotic stress responses differential expression cloning RNAi-based applications; Shrimp targeted gene silencing RNAi; And gene function genetic markers in breeding.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00070/18149/15775.pdf

Advances in improving mammalian cells metabolism for recombinant protein production
Provedor de dados: 69
Autores: Altamirano,Claudia; Berrios,Julio; Vergara,Mauricio; Becerra,Silvana.
Background: The production of recombinant proteins for therapeutic use represents a great impact on the biotechnology industry. In this context, established mammalian cell lines, especially CHO cells, have become a standard system for the production of such proteins. Their ability to properly configure and excrete proteins in functional form is an enormous advantage which should be contrasted with their inherent technological limitations. These cell systems exhibit a metabolic behaviour associated with elevated cell proliferation which involves a high consumption of glucose and glutamine, resulting in the rapid depletion of these nutrients in the medium and the accumulation of ammonium and lactate. Both phenomena contribute to the limitation of cell...
Tipo: Journal article
Palavras-chave: Aerobic glycolysis; Cell engineering; CHO cells; Glutaminolysis; Metabolism.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000300010

Advances in induced resistance by natural compounds: towards new options for woody crop protection
Provedor de dados: 63
Autores: Llorens,Eugenio; García-Agustín,Pilar; Lapeña,Leonor.
ABSTRACT: The activation of defensive responses of plants is a promising tool for controlling pests in conventional agriculture. Over the last few years, several compounds have been studied to protect crops from pests, without displaying direct toxicity for pathogenic organisms. These compounds have the ability to induce a priming state on the plants that results in resistance (or tolerance) against subsequent infection by a pathogen. In terms of molecular response, induced plant defense involves a broad number of physical and biochemical changes such as callose deposition or phenolic compounds, activation of salicylic and/or jasmonic acid pathways or synthesis of defense-related enzymes. Despite the large number of studies performed to ascertain the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Priming; Enhanced resistance; Pest management; Induced systemic resistance; Systemic acquired resistance.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000100090

Advances in Irrigation:  Select Works from 2010 Decennial Irrigation Symposium
Provedor de dados: 18
Autores: DUKES, M.D.; Bjorneberg, David L.; KLOCKE, N.L.
This paper is an introduction to the Advances in Irrigation Special Collection in this issue of Transactions ASABE and the next issue of Applied Engineering in Agriculture of 14 papers selected from 88 papers and presentations at the ASABE 5th Decennial National Irrigation Symposium, December 2010, in Phoenix, Arizona.  This symposium followed the objectives of the previous four decennial events to provide a forum to assess progress of research endeavors to advance the effectiveness of irrigation practices during the past 10 years, leading to further research priorities that respond to future challenges.  The papers in this Collection address a wide range of topics grouped into broad categories: microirrigation, center pivot irrigation, crop water use for...
Tipo: Article
Palavras-chave: Evapotranspiration.
Ano: 2012
URL: http://eprints.nwisrl.ars.usda.gov/1477/1/1442.pdf

Advances in the knowledge of quinoa pests
Provedor de dados: 21
Autores: Rasmussen, Claus; Lagnaoui, Aziz; Esbjerg, Peter.
A wide range of quinoa pests are known throughout the world. The most serious of the Andean pests are Eurysacca melanocampta (Meyrick) and E. quinoae Povolny´ (Lepidoptera: Gelechiidae), found mainly in Peru and Bolivia, which cause considerable yield losses. Insects found elsewhere in the world are polyphagous pests constituting a wide range of potential pests if quinoa is implemented as a crop in those regions. Other major pests include a group of cutworms (Noctuidae). Apart from insects birds cause a major loss through foraging, damaging cotyledonous plants and inflorescences, with yield losses of up to 60%. Cultural practices and host plant resistances will be important components of integrated pest management (IPM). Biological control of the main...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection.
Ano: 2003
URL: http://orgprints.org/28718/7/28718.pdf

Advances in the propagation of Brazilian Cherry tree
Provedor de dados: 94
Autores: Silva,José Antonio Alberto da; Teixeira,Gustavo Henrique de Almeida; Citadin,Idemir; Wagner Júnior,Américo; Danner,Moeses Andrigo; Martins,Antonio Baldo Geraldo.
Abstratct  Brazilian Cherry tree is a native fruit tree belonging to the Myrtaceae family, with ample adaptation to the different edaphoclimatic conditions of Brazil, which makes this fruit widely known. However, there are still few commercial orchards, which may soon be reversed, since studies have shown the benefits of the consumption of this fruit for human health, as well as the potentialities for industrial processing. Thus, Brazilian Cherry tree will no longer be a backyard plant and will be grown in commercial orchards, which demands the production of seedlings with genetic quality. Sexual propagation with the use of seeds should be replaced by asexual propagation by means of cutting, grafting, spreading and tissue culture. The grafting method has...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian Cherry; Myrtaceae; Seeds; Surinan Cherry; Propagation techniques.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000301008

Advances in the propagation of Jabuticaba tree
Provedor de dados: 94
Autores: Silva,José Antonio Alberto da; Teixeira,Gustavo Henrique de Almeida; Martins,Antonio Baldo Geraldo; Citadin,Idemir; Wagner Júnior,Américo; Danner,Moeses Andrigo.
Abstract  The Myrtaceae family has representatives spread worldwide, and Jabuticaba tree is an important species native to Brazil, which is grown not only in the backyards and domestic orchards, but also in commercial orchards, landscaping projects and in several tropical and subtropical countries. The propagation of this species in a sexual form or by seeds is simple and efficient, being able to reach 100%. However, long juvenile phase and genetic segregation have led to the search for methods that allow the propagation of selected trees and guarantee through their standardized and productive clones, fruit quality and fruiting precocity. Protocols for asexual propagation are still scarce, but they show efficient methods, making possible the commercial use...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myrtaceae; Plinia sp.; Grafting; Cutting; Air layering; Cloning.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000301007

Advances in the spread of vegetative blueberry
Provedor de dados: 94
Autores: Schuch,Márcia Wulff; Tomaz,Zeni Fonseca Pinto.
Abstract  The lack of an efficient method of propagation in some cultivars makes it difficult to expand the blueberry culture. In Brazil, we still do not produce seedlings with needed quality and quantity to improve the sector. The cloning of the selected material through mini propagation and micro propagation is an alternative to increase the multiplication and rooting capacity of the blueberries. Allied to this, the use of cultivation system without soil for the development of cloned material facilitates the seedlings production. In addition, we can keep matrices in small spaces with the use of mini-gardens and clonal micro-gardens controlling climatic and nutritional factors. In the Laboratory of Fruit Plants Propagation, of the Phytotechnology...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seedlings; Cloning; Mini propagation and micro propagation; Cultivation system without soil.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000104001

Advances in vegetative propagation of Olive tree
Provedor de dados: 94
Autores: Schuch,Márcia Wulff; Tomaz,Zeni Fonseca Pinto; Casarin,Josiane Vergara; Moreira,Roseane Maidana; Silva,Jacqueline Barcelos da.
Abstract  In Brazil, there is a growing interest in the crop of the olive tree, especially in those regions considered suitable for cultivation, where low temperatures occur between 8ºC and 10ºC in the period before flowering. The areas with these characteristics are located mainly in the South and Southeast regions of the country, characterized by a temperate climate in function of altitude, with the occurrence of natural vernalization. The propagation is an integral part of the production chain and the first step towards the implantation of the olive tree crop or renovation of the existing orchards. Obtaining quality seedlings, besides guaranteeing uniformity and reliable varietal origin, is a factor that influences the whole life of the orchard,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seedlings; Cloning; Mini propagation and micro propagation; Cultivation system without soil.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000201004

Advances in weed management for organic cereal production in southeast Australia
Provedor de dados: 21
Autores: Burnett, Viv; Enshaw, Tim; Sutherland, Steve.
Organic cereal production in southeast Australia is challenging for producers due to a range of e of influences such as weeds and low soil available phosphorus. Two experiments were conducted on a certified organic property at Berrigan NSW during 2001-2003 to investigate ‘within crop’ weed management and forage crop management for weed control. Sowing later using a short season wheat cultivar did not affect yield and reduced (P&lt;0.05) levels of annual ryegrass (Lolium rigidum Gaud.). Incorporating a forage crop into the rotation prior to sowing a cereal resulted in improved (P&lt;0.05) weed management for the cereal crop, in comparison to retaining annual pasture. There were no differences between forage treatments in weed management in the following...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2005
URL: http://orgprints.org/4217/4/4217%2DBurnett_etal_4p_revised%2Ded.pdf

Advances observed in papaya tree propagation
Provedor de dados: 94
Autores: Costa,Adelaide de Fátima Santana da; Abreu,Emanuel Felipe Medeiros; Schmildt,Edilson Romais; Costa,Aureliano Nogueira da; Schmildt,Omar.
Abstract  Papaya (Carica papaya L.) is a fruit tree of great economic and food interest worldwide. Its propagation can occur both sexually and asexually. Traditionally, it is propagated by seeds; however, vegetative propagation has been often used with the use of in vitro and ex vitro culture techniques. In vegetative propagation, the cutting method has been extensively explored. Research has also been developed using grafting. In recent years, papaya cultivation has also become a model for other fruit plants in the use of biotechnological techniques aiming applications ranging from germplasm conservation to genetic transformation of plants. Since the beginning of the 1970s, the culture of papaya tree tissues has been intensely studied, allowing greater...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carica papaya L.; Propagation of papaya; Vegetative propagation; Somatic embryogenesis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000501001

Advantages and disadvantages of different break crops in organic grass/arable rotations (OF0143)
Provedor de dados: 21
Autores: Anon,.
This is the final report of Defra project OF0143.  Choice of break crops to grow in addition to cereals and the fertility building phase is crucial to the agronomic and economic success of organic arable rotations. There are four specific functions that a break crop may perform, namely: addition, conservation and cycling of nutrients; pest and/or disease control; weed control and improvement in soil physical characteristics. Individual break crops may perform one or several of these functions. A good break crop must also produce satisfactory yields, be of marketable quality and produce an economic return for the farmer.   This project analysed the overall suitability of new break crops by simultaneous assessment of key agronomic, economic and environmental...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Nutrient turnover Cereals; Pulses and oilseeds Crop combinations and interactions.
Ano: 2002
URL: http://orgprints.org/8083/1/OF0143_2144_FRP.pdf

Adventitious rooting of auxin-treated Lavandula dentata cuttings
Provedor de dados: 65
Autores: Bona,Claudine Maria de; Biasi,Luiz Antonio; Lipski,Bernardo; Masetto,Magda Aparecida Maia; Deschamps,Cícero.
Lavandula species may be propagated by seeds. However, plants will present expressive variation both in size and essential oil content. Indole-3-butyric acid (IBA) is a growth regulator which efficiently stimulates rooting and the objective of this research was to observe the influence of different IBA concentrations on rooting of L. dentata cuttings. Herbaceous cuttings with approximately 10cm in length and around 1/3 of leaf retention had their bases submerged into 0 (control), 500, 1.000, 2.000 or 3.000mg dm-3 of IBA diluted in de-ionized water for 30 seconds and placed in polystyrene foam trays filled with commercial substrate and kept under intermittent mist system. Averages of root number, length of the longest root, fresh and dry root weight, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: IBA; Vegetative propagation; French lavender.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000500034

Adventitious rooting on the Brazilian red-cloak and sanchezia after application of indole-butyric and humic acids
Provedor de dados: 75
Autores: Baldotto,Lílian EB; Baldotto,Marihus A.
Plant regulators, as well as bioactive fractions of the organic matter, can accelerate the development and increase the efficiency of adventitious rooting in ornamental plants. We evaluated rooting in the Brazilian red-cloak (Megaskepasma erythrochlamys) and sanchezia (Sanchezia nobilis) cuttings in response to application of indole-butyric acid (IBA) and humic acids (HA). Stem cuttings of both species treated with solutions of 0, 250, 500, 1000, 2000 mg/L of IBA and 0, 10, 20, 30, 40 mmol/L of C of HA were placed in 2.0 L plastic pots containing carbonized rice husk, kept in greenhouse. Survival of cuttings, number of leaves and shoot and root fresh and dry matter were evaluated 45 days after. Data were used to run an analysis of variance. We observed the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Megaskepasma erythrochlamys; Sanchezia nobilis; Vegetative propagation; Humic substances; Auxins.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362014000400434

Adverse pregnancy outcome in rats following exposure to a Salacia reticulata (Celastraceae) root extract
Provedor de dados: 56
Autores: Ratnasooriya,W.D.; Jayakody,J.R.A.C.; Premakumara,G.A.S.
The root extract of Salacia reticulata Wight (family: Celastraceae) is used in Sri Lanka by traditional practitioners as a herbal therapy for glycemic control even during pregnancy. It is recognized that some clinically used antidiabetic drugs have harmful effects on pregnancy but the effects of the S. reticulata root extract on reproductive outcome is unknown and deserves examination. We determined the effects of the S. reticulata root extract on the reproductive outcome of Wistar rats (250-260 g) when administered orally (10 g/kg) during early (days 1-7) and mid- (days 7-14) pregnancy. The root extract significantly (P&lt;0.05) enhanced post-implantation losses (control vs treatment: early pregnancy, 4.7 ± 2.4 vs 49.3 ± 13%; mid-pregnancy, 4.7 ± 2.4 vs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salacia reticulata; Hypoglycemia; Pregnancy outcome; Birth weight; Postnatal development.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000700015

Advice on the Harvest Control Rule and Evaluation of the Anchovy Plan COM(2009) 399 Final (STECF-13-24). 14-18 October 2013, Brussels
Provedor de dados: 5
Autores: STECF.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00166/27677/25870.pdf

Aedes aegypti density and the risk of dengue-virus transmission
Provedor de dados: 26
Autores: Scott, T.W.; Morrison, A.
Using genetically modified mosquitoes to control vector-borne diseases will require specific, quantitative targets for the extent to which populations of competent mosquito vectors need to be reduced in order to produce predictable public-health outcomes. Unfortunately, dengue researchers do not have an entomological measure for predicting the risk of human dengue infection and disease that is as effective as they would like. The situation is further complicated by the fact that contemporary dengue control is based on the assumption, which has not been thoroughly tested, that a reduction in adult Aedes aegypti population densities will decrease risk of virus transmission. Ae. aegypti eradication is not considered feasible and there are no commercially...
Tipo: Conference proceedings
Ano: 2004
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/849

Aedes aegypti survival in the presence of Toxorhynchites violaceus (Diptera: Culicidae) fourth instar larvae
Provedor de dados: 103
Autores: Albeny,Daniel S; Martins,Gustavo F; Andrade,Mateus R; Krüger,Rodrigo F; Vilela,Evaldo F.
The mosquito Aedes aegypti (Linnaeus, 1762) is the main vector of dengue and yellow fever viruses. Different methods have been used to control A. aegypti, including chemical and biological tools. However, chemical control can lead to a subsequent increase in the mosquitoes' insecticide resistance, and biological control represents an important method as an alternative to insecticide usage. Larvae from the Toxorhynchites genus (Diptera: Culicidae) are predators of other mosquitoes and represent a potential natural biocontrol agent of A. aegypti larvae. In the present work, A. aegypti larval survival was studied in the presence of the neotropical Toxorhynchites violaceus (Wiedemann, 1821) fourth instar larvae. Toxorhynchites violaceus consumption of A....
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Predation; Survival.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000400017

AERIAL AND GROUND APPLICATION OF FUNGICIDE IN CORN SECOND CROP ON DISEASES CONTROL
Provedor de dados: 70
Autores: Menechini,Wagner; Maggi,Marcio F.; Jadoski,Sidnei O.; Leite,Carla D.; Camicia,Ricardo da M.
ABSTRACT The aim was to evaluate the diseases severity on corn second crop. The research was conducted on the agricultural year of 2013 and 2014, evaluating the application quality over the fungicide spraying. The hybrid used was PIONEER 30k75 BT HERCULEX, evaluating the diseases severity previously and after the fungicide spraying, spray deposition on the culture and productivity. The aerial application was carried out with solution volume of 7.5, 13.5, 20 and 30.3 L ha-1, using automatic rotating nozzles, and the ground application with 90, 110, 130 and 150 L ha-1, uniform flat spray tips. As control a non-fungicide treatment was used. The aerial and soil treatment showed diseases control from the corn crop, being the biggest cover of drops acquired at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Farming plane; Corn productivity; Spraying.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000100116

Aerial, ground and chemigation spray deposition on corn for the control of spodoptera frugiperda (lepidoptera: noctuidae)
Provedor de dados: 64
Autores: Cunha,João Paulo Arantes Rodrigues da; Nascimento,Ana Paula de Castro.
Pesticides can be applied by aircraft, ground-sprayers or sprinkler irrigation. However, selecting the best option is complicated by the limited number of studies comparing these techniques. Thus, the objective of this work was to study the chlorpyrifos insecticide deposition applied by aircraft (30 L ha-1), tractor-mounted sprayer (200 L ha-1) and chemigation (70,000 L ha-1) for the control of Spodoptera frugiperda (J.E. Smith) in two corn (Zea mays L.) populations (70,000 and 100,000 plants ha-1). Active ingredient residue on the corn plant leaves was evaluated by gas chromatography, immediately and ten days after the treatments. Armyworm numbers in each plot and control were also evaluated. The experiment was set up in randomized blocks with four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecticide application technology; Fall armyworm; Chemigation; Sprayer.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000200002

Aerial surveillance of operational oil pollution in Belgium's Maritime Zone of Interest
Provedor de dados: 27
Autores: Volckaert, F.A.M.J.; Kayens, G.; Schallier, R.; Jacques, T.G.
Belgium's Maritime Zone of Interest (BMZI), including the Belgian Territorial Sea, Belgian Continental Shelf, and Bonn Agreement Zone of Multilateral Responsibility, were regularly surveyed by remote-sensing aircraft for the presence of operational oil spills between 1991 and 1995. Simultaneously wind speed and direction were recorded; wave height was obtained from the literature. In total, 228 spills of various sizes, volumes and origins were analysed by means of univariate statistical analysis. We documented that the observed oil spills were generally elongate, narrow and thin, that spill dimensions were interrelated, and that wind speed and wave height affected these dimensions. A major fraction of the total variation however could be attributed to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerial surveys Airborne sensing Coastal waters Hydrodynamics Marine pollution Monitoring Oil pollution Oil slicks Oil spills Pollution control Pollution dispersion Pollution monitoring Remote sensing Statistical analysis Water pollution Wave height Waves Waves Wind speed Winds ANE; Belgium Belgium.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8480

Aerobic exercise repairs neurological function after cerebral ischaemia by regulating the nitric oxide
Provedor de dados: 42
Autores: SUN,LEI; ZHUANG,LV-PING; WU,WEI-FENG.
Abstract: To investigate the mechanism of different exercise patterns on neurological function after focal cerebral ischaemia in rats. Rats with focal cerebral cerebral ischaemia were randomly divided into an aerobic exercise group, an exhaustive exercise group and a control group, with 8 rats in each group. A score for nerve function in each group was calculated, and the ultrastructure of nerve cells was observed. Levels of NO and NOS in the brain motor area of the ​​rats were measured in each group. The aerobic exercise group had lower nerve function scores than the exhaustive exercise group and higher scores than the control group (P&lt;0.05). Under transmission electron microscopy, irregular shapes and organs were observed in nerve cells in the control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exercise intensity; Cerebral ischaemia; Nervous function; Repair; NO; NOS.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500802

Aerobic stability in corn silage (Zea maysL.) ensiled with different microbial additives
Provedor de dados: 2
Autores: Bumbieris Junior, Valter Harry; Guimarães, Vinícius André de Pietro; Fortaleza, Ana Paula de Souza; Massaro Junior, Fernando Luiz; Moraes, Gabriella Jorgette de; Meza, Diego Armando Rojas.
  This study aimed to assess different microbial additives, regarding the efficiency of aerobic stability in corn silages. The corn hybrid used for silages production was the DKB 310. The treatments consisted of: 1) control treatment without any microbial additive; 2) Treatment with LPPA composed of: Lactobacillus plantarum CCT 0580 3.1 x 1010 CFU g-1 and Propionibacterium acidipropionici CCT 4843 3.1 x 1010 CFU g-1; 3) Treatment with Inoculum, composed of Bacillus subtilis CCT 0089 3.0 x 109 CFU g-1, Lactobacillus plantarum CCT 0580 1.2 x 1010 CFU g-1 and Propionibacterium acidipropionici CCT 4843 1.5 x 1010 CFU g-1 and 4) Treatment LB, composed only of Lactobacillus buchneri CCT 3746 2.6 x 1010 CFU g-1. The experimental design was completely randomized...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.04.04.01-6 A aerobiosis; Silage; Fermentation; Nutritional quality.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/34426

Aeromonas media in compost amendments contributes to suppression of Pythium ultimum in cress
Provedor de dados: 21
Autores: Oberhaensli, T.; Hofer, V.; Tamm, L.; Fuchs, J. G.; Koller, M.; Herforth-Rahmé, J.; Maurhofer, M.; Thuerig, B.
Soil-borne diseases such as damping-off caused by Pythium sp. are responsible for high yield losses in organic vegetable production and are difficult to control. Compost amendments have been shown to improve in many cases survival and growth of plants in soils infested with soil-borne diseases. Yet, not all composts are disease suppressive and suppressiveness of composts can be pathogen-specific. Cress (Lepidium sativum L.) was grown in a standard peat substrate amended either with coco fiber (conducive control) or with composts differing in their suppressiveness towards Pythium ultimum. Bacteria were isolated from the rhizoplane and the most abundant species identified by MALDI-TOF MS. The bacterial composition in the rhizoplane of plants grown in...
Tipo: Journal paper
Palavras-chave: Composting and manuring Crop health; Quality; Protection.
Ano: 2017
URL: http://orgprints.org/33022/1/Oberhaensli_etal_2017_ActaHorti_Aeromonas_Vol1164_p353-360.pdf

Afidos en plantas ornamentales de Córdoba, Argentina (Hemiptera: Aphididae)
Provedor de dados: 82
Autores: Delfino,Miguel A.; Buffa,Liliana M.
La calidad de las plantas ornamentales se relaciona estrechamente con su estado fitosanitario, que se ve afectado por la actividad de los insectos. Entre los principales insectos plagas se destacan los pulgones o áfidos. La fauna asociada con los áfidos que colonizan plantas ornamentales, incluye hormigas melívoras (Hymenoptera: Formicidae) que establecen relaciones de mutualismo; además, los microhimenópteros parasitoides de áfidos (Hymenoptera: Braconidae, Aphidiinae) contribuyen al control de estos insectos plaga. Se conoce muy poco sobre estos grupos de insectos en plantas ornamentales de Córdoba, Argentina. El objetivo de este trabajo es dar a conocer los áfidos que colonizan plantas ornamentales, como así también las hormigas melívoras y parasitoides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecto fitófago; Planta cultivada; Fauna asociada; Hormiga; Parasitoide.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000100011

Aflatoxin M1 in the urine of non-carriers and chronic carriers of hepatitis B virus in Maringa, Brazil
Provedor de dados: 60
Autores: Giolo,Marcel Padovani; Oliveira,Christiane Minervino de; Bertolini,Dennis Armando; Lonardoni,Maria Valdrinez Campana; Gouveia,Matheus Sampaio; Netto,Daisy Pontes; Nixdorf,Suzana Lucy; Machinski Junior,Miguel.
Exposure to aflatoxins (AFs) in the diet may favour the development of hepatocellular carcinoma (HCC) and the acute exacerbation of hepatitis in chronic hepatitis B virus (HBV) carriers. Measurement of biomarkers such as aflatoxin M1 (AFM1), a metabolite of aflatoxin B1 (AFB1), in urine allows for the assessment of populations exposed to aflatoxins. The aim of this study was to investigate the occurrence of aflatoxin M1 in the urine of HBV carrier and non-carrier patients. One group included 43 randomly selected HBV carriers treated at two hospitals in the city of Maringa, Brazil, from March to June 2008. Control group consisted of 29 healthy adult volunteers with anti-HBs positive and HBsAg negative test results. Detection of AFM1 was performed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aflatoxins; Biomarkers; Hepatitis B; Hepatocellular carcinoma; Urina/análise toxicológica; Epidemiology.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000300011

Aflatoxins and fumonisins in feed from a broiler operation system from São Paulo state, Brazil
Provedor de dados: 65
Autores: Kobashigawa,Estela; Corassin,Carlos Humberto; Franco,Larissa Tuanny; Uliana,Rômulo Dutra; Oliveira,Carlos Augusto Fernandes de.
ABSTRACT:  The aim of the present study was to assess the occurrence of aflatoxins (AFs) and fumonisins (FBs) in feed ingredients (corn and soybean meal) and finishing feed in a broiler operation system, as well was to evaluate their effect on the productivity of 20 batches of broilers produced and the histology status of broilers’ liver after slaughter. Corn samples presented the highest frequencies of AFs and FBs, at mean levels of 29.1 and 2,100µg/kg, respectively. Soybean samples presented mean levels of 1.5 and 70µg/kg for AFs and FBs, respectively. Batches of broilers receiving feed containing FB levels higher than 1,000µg/kg had lower weight gain and higher mortality rates, while those fed rations with AFs equal or above the limit of quantification...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mycotoxins; AFB1; FB1; Broiler chickens; Productivity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200652

African Society of Toxinology: a new opportunity for integrating the control of envenomations in Africa
Provedor de dados: 80
Autores: Chippaux,JP.
Tipo: Info:eu-repo/semantics/other
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000400002

African star grass response to postemergence herbicides
Provedor de dados: 64
Autores: Brighenti,Alexandre Magno; Benites,Flávio Rodrigo Gandolfi; Souza Sobrinho,Fausto.
ABSTRACT Cynodon nlemfuensis Vanderyst, commonly called African star grass, is excellent forage in pasture formation and herd feeding. However, little information is available regarding weed management in areas of star grasses. Two field experiments were carried out in 2017 and 2018 to evaluate the response of African star grass to postemergence herbicides. The treatments applied were as follows: 2,4-D (1,340.0 g ae ha-1); 2,4-D + picloram (720.0 +192.0 g ae ha-1 + 0.3% v/v nonionic surfactant); fluroxypyr + picloram (80.0 + 80.0 g ae ha-1 + 0.3% v/v mineral oil); fluroxypyr + aminopyralid (160.0 + 80.0 g ae ha-1 + 0.3% v/v mineral oil); fluroxypyr + triclopyr (320.0 + 960.0 g ae ha-1 + 0.3% v/v mineral oil); bentazon (720.0 g ai ha-1 + 0.5% v/v mineral...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical control; Cynodon nlemfuensis; Forages; Pastures; Selectivity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100203

Africanized honey bees (Apis mellifera L.) are more efficient at removing worker brood artificially infested with the parasitic mite Varroa jacobsoni Oudemans than are Italian bees or Italian/Africanized hybrids
Provedor de dados: 74
Autores: Guerra Jr.,José Carlos Vieira; Gonçalves,Lionel Segui; Jong,David De.
Africanized honey bees are more tolerant of infestations with the mite Varroa jacobsoni than are honey bees of European origin. The capacity of these bees to detect and react to brood infested with this mite could be one of the factors determining this tolerance. We tested colonies of Africanized bees headed by queens from swarms collected in Ribeirão Preto, São Paulo State. The Italian colonies had queens imported directly from the USA, or from the Brazilian Island of Fernando de Noronha, where varroa-infested Italian colonies have been maintained, untreated, since 1984. Recently sealed worker brood cells were artificially infested by opening the cell capping, inserting live adult female mites and resealing the cells. Control cells were treated in the...
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000100016

After 10 years the myth of Crotalaria spp. and dragonflies remains alive
Provedor de dados: 49
Autores: Brito,Joás; Louback-Franco,Nayara; Mendoza,Cristian; Nonato,Flávia; Juen,Leandro; Michelan,Thaisa.
Abstract The struggle to control insect-borne diseases can lead to make rash decisions. For instance, the controversial method of planting of Crotalaria spp. to attract predatory dragonflies can be used to control insect vectors of dengue fever and several other medically significant insect-borne diseases. Nevertheless, there is no scientific support for this assumption. Despite the lack of evidence, in Brazil, there remains a multitude of online articles and grey literature sources still promote Crotalaria planting as a means to prevent dengue fever. Here we discuss the reasons why Odonata would not be attracted by Crotalaria and, therefore, it cannot not be considered as an efficient method for vector control. Finally, the best practice to avoid the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mosquitoes; Tropical diseases; Zika; Invasive species.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000200401

Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
Provedor de dados: 3
Autores: Zuim, Vitor; Rodrigues, Hígor de Souza; Pratissoli, Dirceu; Torres, Jorge Braz; Fragoso, Débora Ferreira Melo; Bueno, Regiane Cristina Oliveira de Freitas.
This study evaluated the parasitism of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) on eggs of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) at different ages and densities. The rates of parasitism and emergence, the number of parasitoids emerged per egg and sex ratio of offspring were evaluated in both experiments. Eggs of H. armigera up to 36 hours provided greater parasitism and emergence of adults compared to eggs up to 60 hours old. The number of parasitoids, which emerged per host egg, was greater than one and the sex ratio remained around 80% of females, regardless of the egg development stage. Females of T. pretiosum responded with superior rates of parasitism, emergence and number of parasitoids per egg at the densities of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agronomia; Fitossanidade; Parasitologia Agrícola Biological control; Exotic pest; Egg parasitoid; Host-parasitoid interaction; Noctuidae.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/34943

Age-dependent fecundity of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) with sublethal doses of gammacyhalothrin
Provedor de dados: 52
Autores: Pereira,Alexandre Igor Azevedo; Ramalho,Francisco de Sousa; Bandeira,Catarina de Medeiros; Malaquias,José Bruno; Zanuncio,José Cola.
Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) was exposed to gammacyhalothrin to study the stimulatory effect of low concentrations of this pyrethroid. The doses studied were 23.4375, 11.7188, 5.8594, 2.9297, 1.4648, 0.7324 mg.litre-1 and water, as control. The third, fourth, and fifth instars of P. nigrispinus were shorter with all the doses of this insecticide. The survival and longevity of this predator was highest with the lowest doses. The oviposition period of P. nigrispinus decreased as the doses increased. The lowest pre-and postoviposition periods were found with 11.7188 mg.litre-1 of gammacyhalothrin. The dose 0.7324 mg.litre-1 increased the clutch interval. The egg viability was similar between the treatments. The number of eggs per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Predator; Pyrethroid; Stink bug; Hormesis; Biology.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500013

Agency Perceptions of Alternative Salinity Policies: Are They Measuring Transaction Costs?
Provedor de dados: 31
Autores: McCann,   Laura M.J.
Economics has looked at the decision process of politicians but the decision process of agency staff has primarily been the purview of sociologists. Agencies affect the final form of regulations, they may enforce or ignore regulations that exist, and they provide information to the political process. Policies recommended by economists for non-point source pollution control are seldom implemented by government agencies. This study examined the relationship between preferences for a particular policy and the perceived farmer cost, farmer resistance, efficacy in salinity reduction, fairness, and administrative costs. The latter were included to find whether transaction costs of implementing policies affect preferences and whether this could help explain the...
Tipo: Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1999
URL: http://purl.umn.edu/123851

AGENCY PERCEPTIONS OF ALTERNATIVE SALINITY POLICIES: THE ROLE OF FAIRNESS
Provedor de dados: 31
Autores: McCann,   Laura M.J.; Hafdahl,   Adam.
Economics has looked at the decision process of politicians but the decision process of agency staff has primarily been the purview of sociologists.  Agencies affect the final form of regulations, they may enforce or ignore regulations that exist, and they provide information to the political process.  Policies recommended by economists for nonpoint source pollution control are seldom supported by government agencies.        This study examined the relationship between preferences for a particular policy and perceptions of farmer cost, farmer resistance, efficacy in salinity reduction, fairness, and administrative costs.  The latter were included to find whether transaction costs of implementing policies affect preferences and whether this could help...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 2003
URL: http://purl.umn.edu/22097

Agency Theory and Wheat Marketing in Australia
Provedor de dados: 31
Autores: Bushell,   James; MacAulay,   T. Gordon.
The dual class shareholding company has been adopted as a way of managing the single desk operating system for wheat in Australia. Using B Class ASX listed shares to fund the operation of the company, and the use of A Class grower held shares to control the direction of the company, the objectives of the current arrangements are to maximise net pool returns to growers. Using principal-agent theory, the current marketing arrangements are examined. Considering both groups of shareholders as principals of one agent, this paper has focused on examining the contracts between the agent and each principal, and the incentives provided by these contracts to the agent to act in the interests of each of the shareholder groups. The reward to the agent from each...
Tipo: Conference Paper or Presentation
Palavras-chave: Marketing.
Ano: 2007
URL: http://purl.umn.edu/10350

Agency Theory Issues in the Food Processing Industry
Provedor de dados: 31
Autores: Boland,   Michael A.; Golden,   Bill B.; Tsoodle,   Leah J.
The objective is to identify significant determinants of performance for food processing firms over the 1992 to 2003 time period, focusing particularly on the issue of family control. Variables measuring firm effects such as asset size, governance, income distribution, and risk are used to explain return on equity. This study builds upon previous research by including a measure of income distribution in the food processing industry. Governance variables are found to be significant determinants of return on equity. The results found no evidence of agency problems in family-controlled firms during this time period.
Tipo: Journal Article
Palavras-chave: Agribusiness; Institutional economics; Organizational economics; Agribusiness; Food Consumption/Nutrition/Food Safety; Production Economics; D23; G34; Q13; Q14.
Ano: 2008
URL: http://purl.umn.edu/47203

Agenesia de Terceros Molares, Prevalencia, Distribución y Asociación con otras Anomalías Dentales
Provedor de dados: 77
Autores: Herrera-Atoche,José Rubén; Colomé-Ruiz,Gabriel Eduardo; Escoffié-Ramírez,Mauricio.
La agenesia de terceros molares se ha reportado en un 24,3% en México. La agenesia dental está asociada a otras anomalías dentales debido a su origen genético. El objetivo del presente estudio fue determinar la prevalencia y distribución de agenesia de terceros molares así como establecer su asociación con otras anomalías dentales en una población ortodóntica. La muestra incluyó 670 pacientes ortodónticos de 9 a 20 años de edad. Se excluyeron pacientes con tratamiento ortodóntico previo y condiciones sindrómicas. Se calculó la prevalencia de agenesia de terceros molares y se comparó por sexo. Posteriormente los pacientes fueron divididos en 2 grupos, con agenesia de al menos un tercer molar y un grupo control y en ambos se calculó la prevalencia de 10...
Tipo: Journal article
Palavras-chave: Agenesia; Anomalías dentales; Prevalencia; Tercer molar.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400035

Agentes de controle biológico.
Provedor de dados: 14
Autores: COSTA-LIMA, T. C. da.
Nem todo inseto, ácaro, nematoide, bactéria, fungo ou vírus é prejudicial para as plantas. Na verdade, alguns deles são tão benéficos que o melhor a fazer é criar condições para que se estabeleçam em meio aos cultivos, pois fazem o que os agricultores só conseguem com o uso intensivo de produtos químicos. É o que chamamos de controle biológico de pragas e doenças, quando um organismo vivo é utilizado para controlar outro. Esta é uma técnica importante que ajuda a compor a sustentabilidade de uma agricultura moderna, seja em pequenas propriedades ou com empreendimentos com extensas áreas cultivadas.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Insect.; Controle biológico; Inseto; Ácaro; Doença; Agricultura; Fungo; Inimigo Natural.; Biological control.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1046758

AGENTES QUÍMICOS UTILIZADOS NO CONDICIONAMENTO FISIOLÓGICO MINIMIZAM ESTRESSES EM SEMENTES DE MILHO NO ESTABELECIMENTO INICIAL?
Provedor de dados: 196
Autores: Burin, Caio Cesar; Binotti, Flávio Ferreira da Silva; Silva, Elijanara Raissa; Silva, Fernando Lourenço Santana; Costa, Edilson.
As substâncias químicas utilizadas no condicionamento fisiológico pode ser uma das técnicas utilizadas para reduzir os estresses causados pelas adversidades que acometem as sementes de milhos durante a emergência e o estabelecimento da cultura. Objetivou-se avaliar diferentes substâncias utilizadas no condicionamento fisiológico de sementes de milho para a superação de estresses abióticos no momento da germinação e emergência. O delineamento experimental foi inteiramente casualizado em esquema fatorial 2 x 5, sendo constituído de dois lotes de sementes, e quatro agentes químicos utilizados no condicionamento fisiológico, mais a testemunha. As sementes foram submetidas a diferentes estresse abióticos: baixa temperatura, hipóxia, estresse salino e restrição...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calcium Nitrate; Potassium Nitrate; Priming; Zea mays.
Ano: 2022
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5780

Age-Related Changes in the Urinary Bladder of the Female Albino Rats
Provedor de dados: 77
Autores: Akram Al-Motabagani,Mohamed.
Disturbances of the urinary bladder functions are common in the elderly people particularly women. So, it was the aim of the present work to detect the age-associated changes in the urinary bladder that might play a role in the bladder dysfunctions. Twenty albino rats were used in the present work. They were divided into two equal groups, each consisted of ten rats. The first group included the adult rats (aged 3 months) and served as control group, while the second group was the senile rats (aged 24 months). Specimens of the urinary bladder were taken, processed and examined using the light microscope (LM) and the scanning electron microscope (SEM). Light microscopic examination of the urinary bladder of the aged rats showed marked mucosal damage, ranging...
Tipo: Journal article
Palavras-chave: Urothelium; Urinary mucosa; Urinary muscularis; Bladder dysfunction.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000400005

Aggravation of cyclophosphamide-induced reproductive toxicity in mice by aqueous extract of Aegle marmelos (L.)
Provedor de dados: 60
Autores: Singh,Sangita; Mishra,Awadhesh Kumar; Lata,Swarn; Tiwari,Kavindra Nath.
ABSTRACT Aegle marmelos (L.) (Rutaceae) commonly known as bael is an important medicinal fruit tree. The present study focused on the effects of aqueous extract of Aegle marmelos (AEAM) on the testis and sperm characteristics induced by cyclophosphamide (CPA) in mice. Thirty six adult Parke’s strain mice were divided into six groups: group I given only distilled water (control); group II administered with AEAM alone once in a week for five weeks; group III administered with CPA (200 mg/kg b.w., intraperitoneally) once in a week for five weeks and group IV-VI CPA along with AEAM (400, 500 and 600 mg/kg b.w., orally). CPA was found to reduce gonadosomatic index (GSI), sperm counts, motility, viability, antioxidant activities and induced histopathological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aegle marmelos (L.)/extract/effects/sperm; Cyclophosphamide; Gonadosomatic index (GSI); Reproductive toxicity; Spermatozoa.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000300614

Aggravation of pathogenesis mediated by aflatoxin B1 in mice infected with Trypanosoma brucei rhodesiense
Provedor de dados: 19
Autores: Kibugu, J.K; Makumi, J.N; Ngeranwa, J.J.N; Kagira, J.M; Gathumbi, J.K; Mwangi, J.N.
Aflatoxins are known to alter the pathogenesis of many infectious diseases, but such effects have not been evaluated in trypanosome infections. The aim of the present work was to assess the effects of aflatoxin B1 on the pathogenesis of Trypanosoma brucei rhodesiense infection using a murine model. Mice fed on 0.50 mg/kg aflatoxin b. wt. were infected with T. b. rhodesiense and compared to trypanosome infected and uninfected aflatoxin-fed controls. The clinical and pathological changes were determined and the quantitative data statistically analysed using standard methods. The results showed that infected aflatoxin-fed mice had pronounced dyspnoea, significantly (P&lt;0.05) reduced survival, extreme emaciation, pronounced macrocytic normochromic anaemia...
Palavras-chave: Aflatoxin B1; Trypanosomiasis; Pathogenesis; Mice.
Ano: 2009
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2384

AGGREGATE ANALYSIS OF SITE-SPECIFIC POLLUTION PROBLEMS: THE CASE OF GROUNDWATER CONTAMINATION FROM AGRICULTURE
Provedor de dados: 31
Autores: Segerson,   Kathleen; Opaluch,   James J.
Control of nonpoint sources of pollution has traditionally been within the domain of local decision makers in recognition of the critical importance of site-specific issues.  More recently attention has turned to the issue of what can and should be done at the regional or national level, while recognizing the importance of site-specific attributes.  This paper describes and illustrates an approach for analysis of nonpoint pollution problems that focuses jointly at the aggregate and disaggregate levels of the problem.  The approach is based on linking two tools of analysis, the microparameter distribution model and the Geographical Information Systems (GIS).  Although there are significant challenges to be overcome in implementing such an approach, linkage...
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1991
URL: http://purl.umn.edu/28818

Aggregate stability as affected by short and long-term tillage systems and nutrient sources of a hapludox in southern Brazil
Provedor de dados: 90
Autores: Veiga,Milton da; Reinert,Dalvan José; Reichert,José Miguel.
The ability of a soil to keep its structure under the erosive action of water is usually high in natural conditions and decreases under frequent and intensive cultivation. The effect of five tillage systems (NT = no-till; CP = chisel plowing and one secondary disking; CT = primary and two secondary distings; CTb = CT with crop residue burning; and CTr = CT with removal of crop residues from the field), combined with five nutrient sources (C = control, no nutrient application; MF = mineral fertilizers according to technical recommendations for each crop; PL = 5 Mg ha-1 y-1 fresh matter of poultry litter; CM = 60 m³ ha-1 y-1 slurry cattle manure; and SM = 40 m³ ha-1 y-1 slurry swine manure) on wet-aggregate stability was determined after nine years (four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil tillage; Manure; Sampling time; Soil structure; Aggregation.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000400003

Aggregation, carbon, and total soil nitrogen in crop-livestock-forest integration in the Eastern Amazon
Provedor de dados: 91
Autores: Silva,Jéssica C. N.; Silva,Arystides R.; Veloso,Carlos A. C.; Dantas,Edilândia F.; Sacramento,José A. A. S. do.
ABSTRACT Sustainable agricultural production systems can improve physical attributes of soil as well as increase carbon and nitrogen stocks in soils. The objective of this study was to evaluate changes in the stability of soil aggregates and contents and stocks of carbon and nitrogen after the conversion of native forest to crop-livestock-forest integration systems in the region of Western Pará. Soil samples from five management systems (including a control) were collected at three depths in a randomized block design, with five replications. The stability of the aggregates, soil density, particle density, and total soil porosity, as well as total carbon and nitrogen and their respective stocks were evaluated. The native forest had the highest percentages...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Organic carbon; Soil physics; Sustainability; Brazilian Amazon.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001200837

AGGREGATION ISSUES IN PEST CONTROL ECONOMICS: A BIOECONOMIC APPROACH
Provedor de dados: 31
Autores: Young,   Douglas L.; Smith,   Elwin G.; Kwon,   Tae-Jin.
Previous research has defined “aggregate pesticide expenditures” as the control variable; however, virtually all managerial recommendations and environmental restrictions target specific pesticides, rates, and crops. A bioeconomic approach considering particular pesticides on specific pests and crops is recommended for managerial-policy applications and testing for increasing returns. Exponential weed control and seven popular yield damage functional forms were estimated for a bioeconomic weed control model for winter wheat in Washington. Concavity with respect to herbicide rate was observed for most popular damage functions at normal weed densities and manufacturers’ label rates, but convexity existed outside these ranges and should be checked.
Tipo: Conference Paper or Presentation
Palavras-chave: Bioeconomic; Data aggregation; Herbicide; Increasing returns; Pest control; Pesticide; Weed; Crop Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/36448

Aggressiveness of Phytophthora cinnamomi in avocado seedlings and effect of pathogen inoculum concentration and substrate flooding periods on root rot and development of the plants
Provedor de dados: 94
Autores: Fischer,Ivan Herman; Sampaio,Aloísio Costa; Bertani,Rosemary Marques de Almeida; Gonçalves,Bruno Henrique Leite; Feichtenberger,Eduardo.
Abstract  The present study evaluated the aggressiveness of Phytophthora cinnamomi isolates and the effect of pathogen inoculum concentration and periods of substrate flooding on root rot and plant development. Twelve pathogen isolates were inoculated on the collar region of avocado seedlings with or without wounding. Only 31.3% of the inoculated plants without wounding developed lesions, compared to 100% of the plants with wounding, while the isolates showed different aggressiveness levels. Avocado seedlings had their substrate inoculated with 0, 0.1% and 1.0% (m/v) wheat seeds colonized by the pathogen per pot, and four periods of 0, 12 and 24 h substrate flooding were produced at fortnightly intervals. The assessed parameters were number of leaves per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Persea americana; Root disease; Soil flooding.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000600401

Aging gene pathway of microRNAs 156/157 and 172 is altered in juvenile and adult plants from in vitro propagated Prunus sp.
Provedor de dados: 118
Autores: Bastías,Adriana; Almada,Rubén; Rojas,Pamela; Donoso,José Manuel; Hinrichsen,Patricio; Sagredo,Boris.
A. Bastías, R. Almada, P. Rojas, J.M. Donoso, P. Hinrichsen, and B. Sagredo. 2016. Aging gene pathway of microRNAs 156/157 and 172 is altered in juvenile and adult plants from in vitro propagated Prunus sp. Cien. Inv. Agr. 43(3):429-441. In vitro culture is a very popular technique to mass propagate valuable plant genotypes, including Prunus sp. cultivars. Plants that undergo tissue culture processes often change their morphology and behavior due to the "rejuvenation" caused by the plant growth regulators included in the medium. To evaluate the effects of rejuvenation by tissue culture in Prunus sp., the expression patterns of the aging gene pathway described in plant models, which include the highly conserved microRNA (miRNA or miR) 156/157 and 172...
Tipo: Journal article
Palavras-chave: Development; In vitro culture; Hase change; Rejuvenation.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000300009

Agitation behaviour and heart rate of dairy cows with and without calf-contact during different stimuli in the parlour
Provedor de dados: 21
Autores: Zipp, Katharina A.; Barth, Kerstin; Knierim, Ute.
Farmers who are interested to rear calves together with the dairy cows during the first weeks of life are confronted with problems of poor milk let-down during machine milking. Therefore it was investigated whether 3 calf-associated stimuli were capable to enhance milkability of the cows. In this contribution, the effect of the stimulations during milking on heart rate (HR) and agitation (rumination, posture of the head and behaviour during udder preparation)are presented. Olfactory (calf hair), tactile (teat massage) and acoustic(recorded calf calls)stimulation were tested on 15 dairy cows with permanent contact to their calves and 22 control cows. All cows were milked twice daily. Stimulation tests were conducted in 3 consecutive weeks during day 25–51...
Tipo: Conference paper, poster, etc.
Palavras-chave: Health and welfare.
Ano: 2014
URL: http://orgprints.org/23965/1/23965_MM.pdf

AGLINK: THE OECD PARTIAL EQUILIBRIUM MODEL
Provedor de dados: 31
Autores: Conforti,   Piero; Londero,   Pierluigi.
The paper presents a general introduction to the structure and the characteristics of AGLINK, in comparison with the other most important global multi-commodity partial equilibrium models. Special reference is made to policy modelling, and particularly to the representation of the most important CAP tools, grouped into four types; direct price support, trade measures, supply management tools, and partially decoupled payments. The model is one of the most interesting efforts, especially in terms of its ability to effectively represent EU agricultural policy tools. The high level of institutional control exerted by the OECD member countries provides AGLINK with a particularly high-level of expertise, and a constant update of information; but it also prevents...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Research Methods/ Statistical Methods.
Ano: 2001
URL: http://purl.umn.edu/14808

AGRARIAN REFORM IN UZBEKISTAN AND OTHER CENTRAL ASIAN COUNTRIES
Provedor de dados: 31
Autores: Bloch,   Peter C.
The five Central Asian countries that gained their independence at the breakup of the Soviet Union in 1991 have followed different paths of transition to a market economy in the agricultural sector. Kyrgyzstan has been the most aggressive in restructuring agricultural enterprises, privatizing land, and promoting individual farming. Kazakstan and Turkmenistan have had similar legal and policy reforms, but implementation has lagged. Tajikistan's efforts at reform have been hampered by civil strife and continued weakness of government. Uzbekistan, in contrast to the others, has attempted to control its progress towards market-oriented agriculture very closely, with the result that the agrarian sector looks on the surface very similar today to what it looked...
Tipo: Working or Discussion Paper
Palavras-chave: Land reform -- Uzbekistan Land reform -- Asia; Central Agriculture and state -- Uzbekistan Agriculture -- Economic aspects -- Uzbekistan Agrarian structure (Post-reform) -- Uzbekistan Privatization -- Uzbekistan Agricultural and Food Policy.
Ano: 2002
URL: http://purl.umn.edu/12789

AGREGAÇÃO DE VALOR: UMA ALTERNATIVA PARA A EXPANSÃO DO MERCADO DE ALIMENTOS ORGÂNICOS
Provedor de dados: 31
Autores: Vilckas,   Mariangela; Nantes,   Jose Flavio Diniz.
The lack of sustainability of many rural companies has caused a position change of the rural producers which have been using management tools in their activities. Adding value is an interesting strategy for the rural producers to improve the profitability of their activity and also to reach new markets. Such strategy may be enhanced by means of products classification in accordance with an established standard, the use of proper packaging, products industrialization and development of a brand for the products. In the present paper, two companies placed in São Paulo State, which produce and add value to organic food, were studied. The results show that adding value to organic food is a very interesting alternative for the development of this market, which...
Tipo: Journal Article
Palavras-chave: Adding value; Organic food; Rural management.
Ano: 2007
URL: http://purl.umn.edu/43728

Agresiones a la libertad de expresi??n en M??xico (Portada)
Provedor de dados: 122
Autores: Sol??s Ventura, Brisa; Prieto Beguirist??in, I??igo.
Las condiciones para el ejercicio de la libertad expresi??n en M??xico se han transformado junto con los cambios sociales y pol??ticos que se han dado en el pa??s desde el a??o 2000. Durante a??os, el sistema pol??tico mexicano controlado por  el Partido Revolucionario Institucional (PRI)dio origen y control al ejercicio de este derecho. Es en el marco de la alternancia en el poder ejecutivo, con la llegada del Partido de Acci??n Nacional (PAN), que se generan nuevas condiciones para el debate y el ejercicio de la libertad de expresi??n.
Tipo: Art??culo
Palavras-chave: LIBERTAD DE EXPRESI??N; FREEDOM OF EXPRESSION; M??XICO; TRANSICI??N POL??TICA; POLITICAL TRANSITION; DEMOCRACIA; DEMOCRACY; DERECHOS HUMANOS; HUMAN RIGHTS; GOBIERNO; GOVERNMENT; CRIMEN ORGANIZADO; ORGANIZED CRIME.
Ano: 2010
URL: http://hdl.handle.net/10469/5839

Agribio II: Animal husbandry
Provedor de dados: 21
This part of program (1 project) concerns integrative control of parasitism in herbivores through a better use of treatments and pastures. It  presents  tools for controlling anthelmintic use in small ruminants in organic farming from animal to pasture.
Tipo: Research Programme description
Palavras-chave: Animal husbandry.
Ano: 2023

Agribusiness Firm Reactions to Regulations: The Case of Investments in Traceability Systems
Provedor de dados: 31
Autores: Heyder,   Matthias; Hollmann-Hespos,   Thorsten; Theuvsen,   Ludwig.
Markets for agricultural and food products are characterized by high information asymmetries since producers, processors and retailers are in most cases much better informed about the quality of their products than consumers (Henson/Traill 1993). Often consumers are only at (prohibitively) high costs or not at all able to control important quality criterions such as food safety, nutritional value or region of origin. Such credence attributes can result in market failure due to a lack of credible information in the market (Akerlof 1970). As a result, attempts to protect consumers against food hazards, product adulteration and deception have gained much relevance in food supply chains (Deimel et al. 2008). Besides the more or less voluntary private...
Tipo: Conference Paper or Presentation
Palavras-chave: Agribusiness; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies; Risk and Uncertainty.
Ano: 2009
URL: http://purl.umn.edu/59118

Agricultura de base ecológica em sistemas urbanos: potencialidades, limitações e experiências.
Provedor de dados: 14
Autores: MACHADO, C. T. de T.; MACHADO, A. T.
ABSTRACT: Urban agriculture conducted with ecological principles is an alternative to produce healthy food, but it demands planning and suitable technologies. This ecological approach must be based on crop diversity, organnic or mineral fertilizers from natural origin and control of pests and diseases by non-toxic means. Cultivation of different species is the guarantee of food richness and offer of varied products. Composts, biofertilizers and green manure are presented as organic nutriet resources. Bio-insecticides, natural enemies and utilization of botanic preparations constitute suitable pest and disease. management strategies to urban agriculture. The international experiences treat about application of these principles on feed production,...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agricultura urbana; Regional development.; Agricultura; Desenvolvimento Sustentável; Zona Urbana.; Agriculture; Urban areas.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571787

AGRICULTURAL BENEFITS OF SALINITY CONTROL ON THE RED RIVER
Provedor de dados: 31
Autores: Laughlin,   David H.; Lacewell,   Ronald D.
Control of salinity offers an opportunity to increase agricultural production along the Red River of Texas and Oklahoma.  However, absolute benefits and the distribution of those benefits are sensitive to the crop yield effect of SAR (sodium absorption ratio).  The effect of SAR on crop yield is not well defined.  This study estimates agricultural benefits of a chloride control project as $65 million, not considering any SAR effect and $117 million with an SAR effect.   Further, distribution of benefits was reversed between the eastern and western portions of the study area.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1981
URL: http://purl.umn.edu/32575

Agricultural Competitiveness and Environmental Quality: What Mix of Policies Will Accomplish Both Goals?
Provedor de dados: 31
Autores: Creason,   Jared R.; Runge,   C. Ford.
Agricultural competitiveness and environmental quality are increasingly consensus objectives for American agriculture. Yet the institutional interests undergirding agricultural policy are often at odds with those promoting improved environmental quality. This paper examines ways in which institutional reforms can improve both agricultural competitiveness and the environment. Farmers, like other business managers, make decisions based on information received from markets and other sources. This report shows how farm management as an activity responds to signals from commodity markets, federal agricultural policies, federal and state environmental regulations, and private sector and university extension recommendations. These individual signals are examined...
Tipo: Report
Palavras-chave: Environmental Economics and Policy; International Relations/Trade.
Ano: 1990
URL: http://purl.umn.edu/50102

Agricultural Cooperatives I: History, Theory and Problems
Provedor de dados: 31
Autores: Ortmann,   Gerald F.; King,   Robert P.
This paper presents the principles of cooperation and briefly describes the history and development of agricultural cooperatives in developed and less-developed countries, with particular emphasis on South Africa. A new Cooperatives Act, based on international principles of cooperation, was promulgated in South Africa in August 2005. The theory of cooperatives, and new institutional economics theory (NIE) (including transaction cost economics, agency theory and property rights theory) and its applicability to the cooperative organizational form, are also presented, as are the inherent problems of conventional cooperatives, namely free-rider, horizon, portfolio, control and influence cost problems caused by vaguely defined property rights. An analysis of...
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 2007
URL: http://purl.umn.edu/10129

Agricultural Growth, Poverty Reduction and Millennium Development Goals in Africa: Outcomes of AAAE Conference
Provedor de dados: 31
Autores: Nambiro,   Elizabeth; Omare,   Musa N.; Nkamleu,   Guy Blaise.
This report is a summary of emerging issues affecting African agriculture, recent experiences and policy proposals that can guide interventions in improving the sector’s productivity. Agriculture is at the centre of rural poverty reduction in Africa and urgent measures are needed to increase farm yields and incomes in order to stem collapse of economies and societies.
Tipo: Report
Palavras-chave: AAAE; African Association of Agricultural Economists; Millennium development goals in Africa; Agricultural policies; Agricultural research systems; Poverty reduction; Agricultural productivity; Agricultural and Food Policy; Community/Rural/Urban Development; Farm Management; Food Security and Poverty; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q010; Q130; Q170; Q180; Q560.
Ano: 2008
URL: http://purl.umn.edu/50144

Agricultural Household Response to Avian Influenza Prevention and Control Policies
Provedor de dados: 31
Autores: Beach,   Robert H.; Poulos,   Christine; Pattanayak,   Subhrendu K.
Recent outbreaks of highly pathogenic avian influenza in Asia, Europe, and Africa have caused severe impacts on the poultry sector through bird mortality and culling, as well as resulting trade restrictions and negative demand shocks. Although poultry producers play a major role in preventing and controlling avian influenza, little research has examined the influence of their farm-level decision making on the spread of the disease. In this study, we describe farm behavior under livestock disease risk and discuss data and analyses necessary to generate sound empirical evidence to inform public avian influenza prevention and control measures.
Tipo: Journal Article
Palavras-chave: Agricultural household model; Avian influenza; Control measures; Economic epidemiology; Livestock disease; Poultry production; Food Consumption/Nutrition/Food Safety; International Relations/Trade; Livestock Production/Industries; Q12; Q18.
Ano: 2007
URL: http://purl.umn.edu/6537

AGRICULTURAL MARKET IMPACTS OF THE ADAPTATION OF EU’S COMMON AGRICULTURAL POLICY (SPECIAL ATTENTION TO THE CASE OF HUNGARY)
Provedor de dados: 31
Autores: Velikovszky,   Laszlo; Halmai,   Peter.
The Eastern enlargement of the European Union is a historical move without precedent. The adaptation to the Common Agricultural Policy (CAP) has various impacts. The Eastern enlargement of the CAP raises the most problematic questions in the following areas of discussion:  Taking over of significantly higher CAP-prices;  Taking over of the “compensatory payments”;  Taking over supply control and management;  Budgetary impacts;  WTO-commitments. This paper systematically analyses these above-mentioned factors. Special attention is paid to the WTO-connections. It has to be underlined that the system of Agreement of Agriculture, the “modalities” laying the basis for the commitments have not properly taken the unique situation of the transitory economies...
Tipo: Presentation
Palavras-chave: Agricultural and Food Policy; Marketing.
Ano: 2000
URL: http://purl.umn.edu/123735

Agricultural markets in Benin and Malawi
Provedor de dados: 31
Autores: Fafchamps,   Marcel; Gabre-Madhin,   Eleni Z.
Based on original trader surveys, this paper examines how agricultural traders operate in Benin and Malawi. Results indicate that the largest transaction costs are search and transport. The use of modern technology is limited. Search methods rely principally on personal visits by the trader, and quality control requires the presence of the trader at the time of purchase. This increases costs, as the trader has to travel a lot, and makes it difficult for trading enterprises to grow. Since enterprises remain very small, personal transport and search time represent a non-negligible share of marketing costs.
Tipo: Journal Article
Palavras-chave: Traders; Transaction costs; Transport; Storage; Search; Marketing.
Ano: 2006
URL: http://purl.umn.edu/57022

Agricultural Price Distortion and Stabilization: Stylized facts and Hypothesis Tests
Provedor de dados: 31
Autores: Masters,   William A.; Garcia,   Andres F.
This paper describes agricultural policy choices and tests some predictions of political economy theories. It begins with three broad stylized facts: governments tend to tax agriculture in poorer countries, and subsidize it in richer ones, tax both imports and exports more than nontradables, and tax more and subsidize less where there is more land per capita. We test a variety of political-economy explanations, finding results consistent with hypothesized effects of rural and urban constituents’ rational ignorance about small per-person effects, governance institutions’ control of rent-seeking by political leaders, governments’ revenue motive for taxation, and the role of time consistency in policy-making. We also find that larger groups obtain more...
Tipo: Working or Discussion Paper
Palavras-chave: Distorted incentives; Agricultural and trade policy reforms; National agricultural development; Agricultural price distortions; Political economy; Agricultural and Food Policy; International Relations/Trade; F13; F14; Q17; Q18; D72; D78; F11; H23.
Ano: 2009
URL: http://purl.umn.edu/50301

Agricultural Research Management and the Ex Ante Evaluation of Research Proposals : A Review
Provedor de dados: 31
Autores: Greig,   I.D.
A review of the ex ante evaluation of research proposals is structured in the wider context of research management. Five functions of research management are identified; initiation, evaluation, selection, implementation and control, and dissemination. After considering the relative weights given to these functions In the. literature, it is concluded that the past emphasis on selection should, for agricultural research, give way to more on evaluation. A review of the literature indicates that ex ante evaluation of research is feasible, whether using simple expected value or more costly and complex probabilistic models. The cost of evaluation should be balanced against investment in both the other research functions and the proposals themselves.
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1981
URL: http://purl.umn.edu/12424

Agricultural residues as a substrate in the production of eggplant seedlings
Provedor de dados: 75
Autores: Meneghelli,Lorena AM; Monaco,Paola AVL; Haddade,Ismail R; Meneghelli,Caroline M; Almeida,Karoline M.
ABSTRACT The objective of this study was to evaluate the growth variables of eggplants seedlings produced in substrates with different compositions in agricultural residues. The experiment was carried out in a completely randomized design, with five treatments and ten replicates, with the following treatments: T0= Bioplant commercial substrate (control); T1= 10% of moinha (dried residue of coffee beans) + 15% of coconut fiber + 5% of eggshell + 70% of commercial substrate; T2= 20% of moinha + 15% of coconut fiber + 5% of eggshell + 60% of commercial substrate; T3= 30% of moinha + 15% of coconut fiber + 5% of eggshell + 50% of commercial substrate; T4= 40% of moinha+ 15% of coconut fiber + 5% of eggshell + 40% of commercial substrate. The evaluated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum melongena; Vegetables; Moinha; Growth variables.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000400527

Agricultural Salinization in the Olfants River at Loskop Valley, Mpumalanga
Provedor de dados: 31
Autores: Aihoon,   John Komo; Groenewald,   Jan A.; von Bach,   Helmke J. Sartorius.
Salinization of South African rivers is serious and has rendered some dams and reservoirs unsuitable for irrigation. The contribution of agriculture to the environmental problem of salinization was empirically analysed in this study. Linear regression models demonstrated that increases in the Total Dissolved Salts (TDS) and chlorine of the Olifants River in the Loskop Valley are at least partially the result of variations in irrigation farming parameters such as fertilizer usage, rainfall and area cultivated to crops such as tobacco, cotton and wheat. The marginal rates of substitution among the independent variables can be employed in the formulation of the economically most efficient local salinization control policy. Other approaches are possible, but...
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1997
URL: http://purl.umn.edu/54442

AGRICULTURAL SEDIMENTATION IMPACTS ON LAKESIDE PROPERTY VALUES
Provedor de dados: 31
Autores: Bejranonda,   Somskaow; Hitzhusen,   Frederick J.; Hite,   Diane.
A hedonic pricing model is developed to estimate the effects of policies to control agricultural sedimentation on lakeside property values at 15 Ohio state park lakes, Using an LA/AIDS demand system, we estimate changes in social welfare that result from upstream soil conservation practices and/or lake dredging activity, while holding other property characteristics constant. Policy simulation results suggest that lakeside residents generally have a higher willingness to pay on an annualized basis for sediment reduction from upstream soil conservation than for lake dredging. This has important implications for soil conservation policy, particularly in targeting improvements in the economic efficiency of the Conservation Reserve Program.
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1999
URL: http://purl.umn.edu/31278

Agricultural watershed modeling: a review for hydrology and soil erosion processes
Provedor de dados: 64
Autores: Mello,Carlos Rogério de; Norton,Lloyd Darrell; Pinto,Leandro Campos; Beskow,Samuel; Curi,Nilton.
ABSTRACT Models have been used by man for thousands of years to control his environment in a favorable way to better human living conditions. The use of hydrologic models has been a widely effective tool in order to support decision makers dealing with watersheds related to several economic and social activities, like public water supply, energy generation, and water availability for agriculture, among others. The purpose of this review is to briefly discuss some models on soil and water movement on landscapes (RUSLE, WEPP, GeoWEPP, LASH, DHSVM and AnnAGNPS) to provide information about them to help and serve in a proper manner in order to discuss particular problems related to hydrology and soil erosion processes. Models have been changed and evaluated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: RUSLE; WEPP; GeoWEPP; LASH; DHSVM; AnnAGNPS.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000100007

AGRI-ENVIRONMENTAL POLICY IN GERMANY - SOIL AND WATER CONSERVATION -
Provedor de dados: 31
Autores: Weingarten,   Peter.
This paper is concerned with agri-environmental policy in Germany and focuses in particular on soil and water conservation. At first it discusses to what extent agriculture contributes to erosion and the pollution of surface waters and groundwater with nutrients and pesticides. Whereas erosion is a minor problem in Germany water pollution due to modern and intensive agriculture is of major concern. In theory, a broad range of environmental policy instruments exists. In practice, agri-environmental policy in Germany is dominated by command-and-control-measures, whereas incentivebased measures are of minor importance. In this paper recent developments of the most important legal and institutional settings concerning soil and water conservation policies are...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1997
URL: http://purl.umn.edu/14912

Agro-environmental evaluation of vineyard management using organic farming and integrated plant production systems
Provedor de dados: 21
Autores: FORGET, D.; LACOMBE, J.; DURAND, A.
Organic farming is often considered to be the most environmentally-friendly crop management system, even if integrated production also aims at decreasing the impact of agriculture on the natural environment. In order to establish references for the agro-environmental evaluation of these two production systems in relation to grape growing, INRA carried out an initial study from 2001 to 2004 at the plot scale. This study focused on two grape varieties (Merlot N and Cabernet Sauvignon) in its Couhins vineyard (Graves cru classé), located on two organically-farmed plots and two plots using integrated production, a system based on the implementation of decision rules aimed at limiting the number of pest control treatments. Production means only differed in...
Tipo: Journal paper
Palavras-chave: Environmental aspects Crop health; Quality; Protection Viticulture.
Ano: 2009
URL: http://orgprints.org/15490/1/35%2DForget.pdf

Agro-food chains and sustainable livelihood: a case study of cassava marketing in Nigeria
Provedor de dados: 26
Autores: Oyewole, O.B.; Phillip, B.
Cassava is a good example of problems that local producers encounter in developing agro-food chains aiming at added value and fair rewards for labour inputs. Low production at many small-scale farms lead to high transaction costs. Cassava spoils easily and is costly to transport in its raw form as it consists mainly of water. Therefore much processing takes place on-farm. Processing results in Gari, Lafun and Fufu products with longer shelf life than cassava roots. These products are consumed in the household or sold in the local market. Middlemen buy these products to sell them to urban or international consumers. The products can also serve as basis for further industrial processing but this option is under-exploited so far. It is a highly competitive...
Tipo: Conference proceedings
Ano: 2006
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/976

Agro-food Quality and Safety Based on Agro-ecological Compensation
Provedor de dados: 31
Autores: Li,   Qing-jiang; Yao,   Wen-ying; Hao,   Li.
Reflection of the rise f agro-food production costs is analyzed based on the introduction of the quality safety situation of agricultural products in China . Firstly, rise of production cost caused by the demarcation of prohibited areas; secondly, rise of production cost caused by using environment-friendly agricultural inputs; thirdly, rise of production cost caused by quality control; rise of production cost caused by product certification. The ecological compensation mechanism which is beneficial to agro-food quality safety is set up according to the principle “the one who is benefited compensates”. Firstly, laws and regulations of agricultural production compensation are to be actively perfected. Secondly, experience of developed countries can be...
Tipo: Journal Article
Palavras-chave: Ecological compensation; Agriculture; Agricultural products; Quality safety，China; Agribusiness.
Ano: 2010
URL: http://purl.umn.edu/102372

Agroforestry systems can mitigate the severity of cocoa swollen shoot virus disease
Provedor de dados: 21
Autores: Andres, Christian; Blaser, Wilma J.; Dzahini-Obiatey, Henry K.; Ameyaw, George A.; Domfeh, Owusu K.; Awiagah, Moses A.; Gattinger, Andreas; Schneider, Monika; Offei, Samuel K.; Six, Johan.
Currently, the only effective treatment for cocoa (Theobroma cacao L.) infected with the cocoa swollen shoot virus disease (CSSVD) is to cut and replant infected trees. Hence, the development of preventive control measures and strategies to mitigate the severity of the disease are of utmost importance. While past research has mainly focused on resistance breeding, mild strain cross protection and vector control, diversification measures such as agroforestry have received relatively less attention, despite their potential to mitigate CSSVD severity.  Therefore, we studied the effects of shade on CSSVD symptom severity, capsid damage and cocoa yield along a gradient of increasing shade tree abundance in smallholder cocoa farms in Ghana. Furthermore, we...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Africa.
Ano: 2018
URL: http://orgprints.org/32272/1/andres_etal_2018_AgriEcosysEnviron_Vol252_p83-92.pdf

Agroforestry systems, nutrients in litter and microbial activity in soils cultivated with coffee at high altitude
Provedor de dados: 63
Autores: Notaro,Krystal de Alcantara; Medeiros,Erika Valente de; Duda,Gustavo Pereira; Silva,Aline Oliveira; Moura,Patrícia Maia de.
Agroforestry systems are an alternative option for sustainable production management. These systems contain trees that absorb nutrients from deeper layers of the soil and leaf litter that help improve the soil quality of the rough terrain in high altitude areas, which are areas extremely susceptible to environmental degradation. The aim of this study was to characterize the stock and nutrients in litter, soil activity and the population of microorganisms in coffee (Coffea arabica L.) plantations under high altitude agroforestry systems in the semi-arid region of the state of Pernambuco, Brazil. Samples were collected from the surface litter together with soil samples taken at two depths (0-10 and 10-20 cm) from areas each subject to one of the following...
Tipo: Info:eu-repo/semantics/article
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000200001

Agroindustry for Drying Pink Pepper (Aroeira)
Provedor de dados: 111
Autores: de Carvalho, Ricardo Oliano; Machado, Miguel Borges; Lopes, Raquel Soares; Scherer, Vinícius Saldanha; Cruz, Wagner Alexandre; da Luz, Maria Laura G. Silva; da Luz, Carlos Alberto Silveira; Gadotti, Gisele Ingrid; Gomes, Mário Conill.
The pepper tree (Schinus terebinthifolius) is a tree native to Atlantic whose planting is seen as an alternative to agricultural diversification. Besides being suitable for reforestation, its fruit, known as pink pepper, pepper or brazilia-poivre rose, is widely used in European cuisine. This paper aimed to design an agribusiness for processing the fruits of 100 trees planted in planting planned or consortium, as well as restore degraded areas, this needs a small area for planting. Lining surveyed the procedures used for drying of pink pepper as well as those required for the marketing of this spice patterns. The starting process is the manual collection and pre-cleaning stage where pepper is separated from branches and leaves, the product follows after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pepper; Agro industry.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3109

Agrometeo: decision support tool for pest prognosis and risk assessment
Provedor de dados: 21
Agrometeo is a platform offering information material and decision support tools for an optimized use of plant protection measures in conventional viticulture, orchards and arable cropping based on microclimatic data from over 150 weather stations in Switzerland generating forecast models of pest and disease risk. An interactive map enables to click on a specific weather station which gives the user the latest meteorological data, as well as prognosis of infection risks in viticulture and apple production.  Information material and control thresholds for cultivators of wheat (fusarium fungi), barley, potato (virus, late blight) and insect monitoring for European corn borer and pea moth is free for use. Control methods based on counting of infested main...
Tipo: Practice tool
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023
URL: http://orgprints.org/30592/1/30592.png

Agrometeorology and plant disease management: a happy marriage
Provedor de dados: 63
Autores: Gillespie,Terry James; Sentelhas,Paulo Cesar.
Many plant disease outbreaks are triggered by suitably warm temperatures during periods of leaf wetness. Measurements or estimations of leaf wetness duration provided by Agrometeorologists have allowed Plant Pathologists to devise weather timed spray schemes which often reduce the number of sprays required to control plant diseases, thus lowering costs and benefitting the environment. In the near future, tools such as numerical weather models with small grid spacings, and improved weather radar, are expected to reduce the need for tight networks of surface observations. The weather models will also provide growers with forecast warnings of potential upcoming disease outbreaks, which will further enhance the contribution of agrometeorology to plant disease...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leaf wetness duration; Temperature; Disease warning systems.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000700012

Agronomic and biochemical evaluation of cassava clones with roots that have pink pulp
Provedor de dados: 65
Autores: Fuhrmann,Elisiane; Vieira,Eduardo Alano; Fialho,Josefino de Freitas; Faleiro,Fábio Gelape; Malaquias,Juaci Vitoria; Carvalho,Luiz Joaquim Castelo Branco.
ABSTRACT:  Sweet cassava breeding programs are focused on the development of bio fortified cultivars that combine significant amounts of carotenoids in their reserve roots with desirable agronomic. The objective of this research was to evaluate agronomic and biochemical traits in sweet cassava clones with roots that have pink pulp. The nine genotypes were evaluated in two seasons in a randomized block design with three replications. Among the evaluated clones, the following stood out: i) for the height of the first branch (390/08, 345/08 and the control IAC 576-70); ii) for plant height (390/08, 345/08 e 378/08); iii) for shoot weight without original steam cutting (390/08, 406/08, 378/08 e 341/08); iv) for the percentage of starch in roots (378/08,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manihot esculenta Crantz; Breeding; Genetic resources; Lycopene.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100201

Agronomic and economic evaluation of weed management methods in organic herb and vegetable production systems
Provedor de dados: 21
Autores: Kristiansen, Mr P; Sindel, Dr B; Jessop, Dr R.
Weed management is reported to be a major constraint in organic agriculture. Organic growers also report a lack of information about non-chemical weed control. A series of field trials was conducted in lettuce (Lactuca sativa L.) and echinacea (Echinacea purpurea (L.) Moench) crops to evaluate a range of weed control methods commonly used in organic herb and vegetable production systems. The criteria for evaluating the methods were weed growth, crop yield and cost effectiveness.    Hand weeding, tillage and organic mulches (hay and pelletised paper) were effective to very effective at suppressing weeds. In general, good weed suppression was correlated with good crop yields; however, crop yields were reduced by tillage and paper mulch. Deducting the cost of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Vegetables; Weed management.
Ano: 2003
URL: http://orgprints.org/567/1/geelong_paper.pdf

Agronomic and P recovery efficiency of organomineral phosphate fertilizer from poultry litter in sandy and clayey soils
Provedor de dados: 86
Autores: Sá,Jerusa Maia e; Jantalia,Cláudia Pozzi; Teixeira,Paulo César; Polidoro,José Carlos; Benites,Vinícius de Melo; Araújo,Adelson Paulo.
Abstract: The objective of this work was to evaluate agronomic and P recovery efficiencies of a granulated organomineral phosphate fertilizer (OMF) produced from poultry litter, compared with those of monoammonium phosphate (MAP), in soils with different textures. The experiment followed a 2x2x4+2 factorial arrangement, with two Oxisols (sandy loam and clay loam textures), two sources of P (OMF and MAP), four levels of P (50, 100, 200, and 400 mg kg-1), besides two control treatments without P application. The treatments were evaluated in 10-kg pots filled with soil, during four successive cultivations of corn without replacing the P absorbed by the plants, in order to evaluate the actual and residual effects of the fertilizers. Available P contents in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Biomass accumulation; Phosphate fertilization; P recovery efficiency; Tropical soils.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900786

Agronomic aspects of strip intercropping lettuce with alyssum for biological control of aphids
Provedor de dados: 21
Autores: Brennan, Eric B.
Organic lettuce growers in California typically use insectary strips of alyssum (Lobularia maritima (L.) Desv.) to attract hoverflies (Syrphidae) that provide biological control of aphids. A two year study with transplanted organic romaine lettuce in Salinas, California investigated agronomic aspects of lettuce monoculture and lettuce-alyssum strip intercropping on beds in replacement intercropping treatments where alyssum transplants replaced 2 to 8% of the lettuce transplants, and in additive intercropping treatments where alyssum transplants were added to the standard lettuce density without displacing lettuce transplants. Alyssum and lettuce dry matter (DM) were determined at lettuce maturity. Alyssum transplants produced less shoot DM in the additive...
Tipo: Journal paper
Palavras-chave: Crop combinations and interactions Vegetables Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2013
URL: http://orgprints.org/27813/7/27813.pdf

Agronomic Characteristics, Growth Analysis, and Yield Response of Biofield Treated Mustard, Cowpea, Horse Gram, and Groundnuts
Provedor de dados: 21
Autores: Mahendra Kumar, Trivedi; Alice, Branton; Dahryn, Trivedi; Gopal, Nayak.
Mustard, cowpea, horse gram, and groundnuts are the seasonal pulse crops used as food and fodder in many regions of the world. In the present study, the impact of biofield energy treatment on mustard, cowpea, horse gram, and groundnuts were studied with respect to overall growth, yield, and its related yield attributes. Seeds of each crop was selected and divided in two groups, i.e. control and treated. The treated group of each seed crops was subjected to Mr. Trivedi biofield energy treatment, and were plotted in the separate fields. The plot with untreated seeds were provided with all the precautionary measures such as pesticides, fungicides and organic additives, while no such measures were taken in the plot with treated seeds. Both group of crops were...
Tipo: Journal paper
Palavras-chave: Food security; Food quality and human health.
Ano: 2015
URL: http://orgprints.org/30513/1/10.11648.j.ijgg.20150306.13.pdf

Agronomic characteristics of tomato plant cultivar Santa Cruz Kada grafted on species of the genus Solanum
Provedor de dados: 75
Autores: Zeist,André R; Resende,Juliano TV; Silva,Israel FL; Oliveira,João RF; Faria,Cacilda MDR; Giacobbo,Clevison L.
ABSTRACT In this study were evaluated gas exchanges, fruit production and fruit quality of tomato Santa Cruz Kada grafted onto different species of the genus Solanum, using two grafting methods. For the grafted tomato cultivation, the authors used a randomized complete block design, in a 8x2 factorial scheme, evaluating eight rootstocks: accessions of mini tomatos (0224-5, RVTC 57, RVTC 20 and 6889-50); wild tomato species Solanum habrochaites var. hirsutum (PI-127826); Solanum pennellii (LA716); Solanum sessiliflorum (cubiu); and tomato cultivar Santa Cruz Kada (self-grafting, control), and two grafting methods {cleft grafting (FC) and approach grafting (EC)}. The authors verified a significant interaction between rootstock x grafting method. The S....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycompersicum; Solanum habrochaites; Grafting; Cubiu.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000300419

Agronomic characters and disease management in second season corn using calcium, copper, manganese and zinc products
Provedor de dados: 64
Autores: Lorenzetti,Eloisa; Tartaro,Juliano; Stangarlin,José Renato; Kuhn,Odair José.
ABSTRACT Corn is a cereal whose productivity can be reduced by various diseases which has recommended treatments for control. The objective of this study was to analyze copper, zinc, calcium and manganese products for the management of Pantoea ananatis, Puccinia polysora and Cercospora zeae maydis in second season corn, and interference in agronomic characteristics. Commercial products made of amino acid chelated with 15% calcium, 5% copper, 15% manganese and 10% zinc, at the doses of 0.5 kg ha-1, 0.3 L ha-1, 0.4 kg ha-1 and 1 L ha-1, respectively, a treatment with fungicide (20% azoxystrobin and 8% cyproconazole at 0.3 L ha-1 + 25% propiconazole at 0.4 L ha-1), and a treatment with water were assayed. The experiments were carried out under field...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative control; Nutrition; Zea mays L.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100208

Agronomic efficiency of Rhizobium strains from the Amazon region in common bean
Provedor de dados: 36
Autores: NOGUEIRA,Cláudia de Oliveira Gonçalves; OLIVEIRA,Dâmiany Pádua; FERREIRA,Paulo Ademar Avelar; PEREIRA,João Paulo de Andrade Rezende; VALE,Helson Mário Martins do; ANDRADE,Messias José Bastos de; MOREIRA,Fatima Maria de Souza.
ABSTRACT To maximize the contribution of biological nitrogen fixation in common bean, it is necessary to use bacterial strains that are more adapted, competitive, and efficient in the symbiotic process. In this regard, the aim of this study was to evaluate the agronomic efficiency (AE) of three bacterial strains isolated from acid soils with high Al content from the Amazon region in an Argissolo Vermelho Distrófico típico soil (Typic Rhodustults - USDA Classification) from the municipality of Formiga, MG, Brazil. We compared their AE to that of the reference strain CIAT 899T and of two controls without inoculation (one without and another with 80 kg ha-1 of N-urea). The results indicated that inoculation with the strains UFLA 02-100 and UFLA 02-127...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Phaseolus vulgaris L.; Rhizobia; Biological nitrogen fixation; Seed inoculation.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000300273

Agronomic evaluation of cowpea as a function of weed control with herbicides and different combinations
Provedor de dados: 124
Autores: Souza,Wando Wilson de Oliveira; Oliveira,Alexandre Bosco de; Dutra,Alek Sandro; Nunes,Renato Leandro Costa; Cavalcante,Robson Assunção.
ABSTRACT Cultivation of the cowpea is important in various regions of Brazil, but competition from weeds is one of the factors which limit productivity. The aim of this study therefore was to evaluate the pre-plant selectivity and efficiency of different herbicides, and combinations of herbicides, in the cowpea [Vigna unguiculata (L.) Walp.]. An experiment was carried out in a randomised block design, in lots split over time and with three replications, using a 4 x 7 factorial scheme, where the treatments consisted of: glyphosate, glyphosate + imazethapyr, glyphosate + flumioxazin, glyphosate + imazethapyr + flumioxazin, glyphosate + ready mix (imazethapyr &amp; flumioxazin), and two control treatments (one with no weeding and one with manual weeding). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata (L.) Walp; Chemical control; Competition from weeds.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000400675

Agronomic performance of 'Cabernet Sauvignon' with leaf removal management in a high-altitude region of Southern Brazil
Provedor de dados: 86
Autores: Würz,Douglas André; Brighenti,Alberto Fontanella; Marcon Filho,José Luiz; Allebrandt,Ricardo; Bem,Betina Pereira de; Rufato,Leo; Kretzschmar,Aike Anneliese.
Abstract: The objective of this work was to compare the effect of different times of leaf removal on the vegetative-productive efficiency and on the chemical and physical characteristics of 'Cabernet Sauvignon' clusters in a high-altitude region of the state of Santa Catarina, Brazil. The experiment was conducted in the 2015 and 2016 vintages, in a commercial vineyard, located in the municipality of São Joaquim, in the state of Santa Catarina, at 1,230-m altitude. The treatments consisted of different times leaf removal in the cluster zone, in the following phenological stages: full bloom, buckshot berries, pea-sized berries, veraison, and 15 days after veraison, besides a control without leaf removal. The evaluated variables were subjected to the analysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitis vinifera; Altitude wines; Early leaf removal; Grape ripening; Vine management.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001000869

Agronomic performance of canola submitted to desiccation with herbicides at different maturation stages
Provedor de dados: 91
Autores: Rosa,Willian B.; Duarte Júnior,José B.; Perego,Ivonei; Almeida,Bruno H. de; Costa,Antonio C. T. da; Tomm,Gilberto O.
ABSTRACT Uneven maturation in canola is an important challenge for its management in regions subject to frost and high rainfall at the end of the cycle. In order to identify practices to maximize grain yield under these growing conditions, this work evaluated the effects of desiccation with herbicides at different phenological stages on Hyola 433, one of the most commonly used hybrids in Brazil. The experiment was conducted in a randomized block design with four repetitions in a 6 x 4 factorial scheme, with five herbicides: paraquat, diquat and ammonium glufosinate at dose of 400 g a.i. ha-1, glyphosate at 1,440 g a.i. ha-1 and saflufenacil at 70 g a.i. ha-1, plus the control, at four phenological stages of silique maturation (G2, G3, G4 and G5)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Harvest antecipation; Grain yield; Oil content.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000600419

Agronomic performance of green cane fertilized with ammonium sulfate in a coastal tableland soil
Provedor de dados: 53
Autores: Oliveira,Ana Paula Pessim; Alves,Bruno José Rodrigues; Anjos,Lúcia Helena Cunha dos; Lima,Eduardo; Zonta,Everaldo; Pereira,Willian; Soares,Paula Fernanda Chaves.
ABSTRACT The recent approach of eliminating the usage of fire for sugarcane harvesting resulted in managing the crop on a trashblanketed soil, to which a proper recommendation of N fertilization is lacking, a problem that remains in the coastal tablelands of the Espírito Santo State, Brazil. This study aimed at evaluating the effect of increasing N rates on stalk and sugar yields and the N use efficiency by the crop. The experimental area planted with sugarcane, at the first ratoon, is located in Linhares, Espírito Santo State. The treatments consisted of N rates varying from 80 to 160 kg N∙ha−1 as ammonium sulphate, and a control without N, in a completely randomized blocks experimental design. Stalk yield increased with the N rate, and fitting the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum spp.; Sugarcane harvesting systems; Nitrogen requirements.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000200246

Agronomic performance of Marandu grass treated with plant growth biostimulants in the Amazon biome
Provedor de dados: 45
Autores: Oliveira,W.F.; Lima,E.M.; Gomes,D.I.; Alves,K.S.; Santos,P.M.; Azevedo,G.S.; Mezzomo,R.
ABSTRACT The aim was to evaluate the effect of different doses of two biostimulants on the productivity and canopy structure of Urochloa brizantha cv. Marandu grass in the establishment fase. The study was conducted in Universidade Federal Rural da Amazônia, Parauapebas, Pará, Brazil. One module of 35 plots of 25m² were established. A completely randomized experimental design was used, with seven treatments and five replicates. The treatments included a control, 0.5, 1, and 2kg/ha of biostimulant A (BIOST.A); and 0.25, 0.5, and 1L/ha of biostimulant B (BIOST.B). Three collections were performed. The data for application of the two biostimulants were analyzed separately, using the Dummy variable method and regression analysis. The application of 2kg/ha...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Auxin; Cytokinin; Gibberellin; Forage stimulation; Urochloa brizantha.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000200603

Agronomic performance of mini-tomato hybrids from dwarf lines
Provedor de dados: 64
Autores: Finzi,Rafael Resende; Maciel,Gabriel Mascarenhas; Silva,Ernani Clarete da; Luz,Jose Magno Queiroz; Borba,Monique Ellis Aguilar.
ABSTRACT Little is known about the commercial potential of mini-tomato hybrids obtained from one dwarf parent. Thus, our objective was to evaluate the agronomic performance of mini-tomato hybrids obtained by crossing a dwarf line (A) with normal lines with indeterminate (I), determinate (D) and semi-determinate (SD) growth habits. The experiment was conducted in a greenhouse at the Estação Experimental de Hortaliças at the Universidade Federal de Uberlândia-UFU in Monte Carmelo, Brazil. The experiment was completely randomized with 17 treatments and four repetitions. The genetic material consisted of 16 experimental mini-tomato hybrids from the tomato germplasm bank at UFU, and a commercial hybrid (Mascot) as a control. The following variables were used to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brix; Dwarfism; Growth habit; Solanum lycopersicum.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000100015

Agronomic performance of okra under the effect of seed microbiolization with rhizobacteria
Provedor de dados: 75
Autores: Mota,Wagner F; Oliveira,Gevaldo B; Nobre,Sérgio AM; Silva,Humberson R.
ABSTRACT Plant-growth promoting rhizobacteria are an alternative to increase the productivity, adding value to the productive system of crops like okra. We aimed to evaluate the agronomic characteristics of okra genotypes after seed microbiolization with nine strains of rhizobacteria. The experimental design was in randomized blocks, in a 2x10 factorial scheme, using two okra genotypes, cultivar Santa Cruz 47 and hybrid Dardo, nine strains of rhizobacteria, LEBM 103, 105, 109, 112, 118, 134, 135, 152 and 154 and one control (without microbiolization), with four replications. We analyzed number of fruits per plant (NFP), average diameter of fruits (DM), productivity (PDT); fresh mass of fruits per plant (MFFP) and average mass of fruit (MMF). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abelmoschus esculentus; Rhizosphere microorganisms; Okra genotypes.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362017000300410

Agronomic performance of onion hybrids in Baraúna, in the semi-arid region of Brazil
Provedor de dados: 124
Autores: Nunes,Renato Leandro Costa; Oliveira,Alexandre Bosco de; Dutra,Alek Sandro.
In the Brazilian state of Rio Grande do Norte, the significant planting of onions is relatively recent, with producers seeking alternative ways to reduce losses. As a result, it was aimed to evaluate the agronomic performance of onion hybrids in the town of Baraúna in the semi-arid region of Rio Grande do Norte. The experimental design was of randomised blocks with six replications. Treatments consisted of eight hybrids (Cronus F1, Predilata F1, Serena F1, Fortaleza F1, Mata Hari, Luana, Lambada, Don Victor) and a control cultivar (IPA 11). The following were evaluated: average plant height; average number of leaves; diameter of the pseudostem; productivity; average bulb weight; rate of survival; leaf-waxiness; cultivar cycle; commercial classification of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Productivity; Precocity; Bulb classification.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000300023

Agronomic performances of self-reseeding legumes on alkaline soil under Mediterranean climate
Provedor de dados: 21
Autores: Ayoub, Dr. Mohamed.
Self-reseeding legumes are an essential component of the Mediterranean natural resources. Germplasms collected from the Mediterranean region were introduced in Australia and subjected to an extensive breeding. Species were then re-introduced in their original habitat where they were object of different important researches. Despite all the efforts made to select appropriate species and varieties, well-adapted cultivars have not been yet identified for all situations. At the experimental farm of the Mediterranean Agronomic Institute of Bari, Italy, agronomic performances of 15 cultivars of self reseeding legumes were compared on an alkaline soil to evaluate their possible use in organic agriculture systems. 10-m2 plots were used in a complete randomised...
Tipo: Thesis
Palavras-chave: Breeding; Genetics and propagation Cereals; Pulses and oilseeds.
Ano: 2003
URL: http://orgprints.org/1424/1/ayoub_master.doc

Agronomic studies of corn and sorghum during 1977
Provedor de dados: 106
Autores: Supot Faungfupong; Wasana Wongyai; Kittima Montranon; Surapol Chowchong.
12 tables
Palavras-chave: Corn; Maize; Sorghum; Growth; Nitrate reductase; Agronomic characters; Dry weight; Nitrogen fertilizers; Weed control; Yields; ข้าวโพด; ข้าวฟ่าง; การเจริญเติบโต; การแข่งขันกับวัชพืช.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3921

Agronomic traits of coffee tree progenies from Timor Hybrid x Catuaí crossing
Provedor de dados: 65
Autores: Rezende,Ramiro Machado; Carvalho,Gladyston Rodrigues; Rezende,Juliana Costa de; Botelho,Cesar Elias; Pasqualloto,Allan Teixeira; Velloso,Jeanny Alice; Carvalho,Alex Mendonça de.
The objective of this work was to evaluate the agronomic traits of coffee tree progenies. The experiment was set in Ouro Verde Farm, located at Campos Altos County, MG. Twenty three coffee progenies and seven control cultivars were used. These progenies are from the fourth generation of crossing between Timor Hybrid and Catuaí. The experiment was set in a randomized block design with four replicates, a total of 120 plots with 8 plants per plot. The yield of processed coffee sacks ha-1 was evaluated in eight crop years from the 2003 to the 2011 harvests. The percentage of fruits at the cherry stage, floating fruits, coffee classification (sieve above 17), income and plant vigor were evaluated in the 2010 and in the 2011 harvests. It was concluded that the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffee; Yield; Breeding; Progenies.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000500003

Agronomical indicators and incidence of insect borers of tomato fruits protected with non-woven fabric bags
Provedor de dados: 65
Autores: Filgueiras,Rosenya Michely Cintra; Pastori,Patrik Luiz; Pereira,Fabrício Fagundes; Coutinho,Cristiane Ramos; Kassab,Samir Oliveira; Bezerra,Laura Carla Marinho.
ABSTRACT: Fruit bagging is an efficient mechanical control technique used in fruit growing. However, to date, few studies have evaluated the efficacy of bagging in the cultivation of vegetables, including tomato crops. The objective of this study was to evaluate the effectiveness of bagging of tomato flowers and/or fruits using a non-woven fabric (NWF) for the control of Helicoverpa spp., Neoleucinodes elegantalis, and Tuta absoluta, to evaluate the effect of this technique on the final yield, and determine the optimal period for bagging. Tests were conducted in a commercial crop of staked ‘Valerin’ tomato plants located in the municipality of Ubajara, Ceará State, Brazil. The experimental design was randomized blocks with a 2x4 factorial design (sprayed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Mechanical control; Neoleucinodes elegantalis; Productivity.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600152

Agronomical performance and profitability of exploitation systems in four rubber tree clones in São Paulo state
Provedor de dados: 53
Autores: Silva,Juliano Quarteroli; Gonçalves,Paulo de Souza; Scarpare Filho,João Alexio; Costa,Reginaldo Brito da.
The exploitation or tapping of the rubber tree, Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg. is one of the most important cultural practices in determining useful life, yield and accounts for a major part of the total production costs in rubber farming. The objective of this work was to evaluate yield performance and economic aspects of rubber tree clones submitted to diverse tapping systems. The trial was placed in Guararapes city, São Paulo State, Brazil, in a randomized block design with split-plot in time. The plots consisted of the IAN 873, PR 261, RRI M 600 and RRI M 701 clones. The tapping systems consisted the subplots, where: ½S = tapping of half spiral cut; d/2, d/3, d/4, d/5 and d/7 = tapping every 2, 3, 4, 5 and 7 days,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hevea brasiliensis; Natural rubber; Tapping; Ethephon; Tapping panel dryness.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052010000400009

Agrotóxicos.
Provedor de dados: 14
Autores: KARAM, D.; SILVA, W. T. da; RIOS, J. N. G.; FERNANDES, R. C.
A necessidade de uma maior produção de alimentos seguros para atender o crescimento da população mundial induziu o uso constante de produtos agrotóxicos para um aumento na produção e na produtividade agrícola. Sabe-se que a utilização indiscriminada desses produtos desencadeia processos de contaminação, com consequências muitas vezes irreversíveis. Tal fato tem demandado ações de mitigação e racionalização do emprego desses compostos. Para contribuir com o entendimento do tema “agrotóxicos”, este documento traz esclarecimentos da legislação, da classificação, considerando o alvo de atuação (plantas, insetos ou microrganismos), do grupo químico, e ainda conforme a sua toxicidade aos seres humanos e periculosidade ambiental. Apresenta também os cuidados a...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle químico; Defensivo; Toxidez; Chemical control.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1039789

Agua un derecho humano fundamental
Provedor de dados: 121
Autores: comp. por Alberto Acosta.
Tipo: Text
Palavras-chave: AGUA; DERECHOS HUMANOS; DERECHO AL CONTROL DE LOS RECURSOS NATURALES; CONSUMO DE AGUA; RIEGO.
Ano: 2010
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=122152&tab=opac&oai:flacso.org.ec:122152

Agulhas Leakage Predominantly Responds to the Southern Hemisphere Westerlies
Provedor de dados: 5
Autores: Durgadoo, Jonathan V.; Loveday, Benjamin R.; Reason, Chris J. C.; Penven, Pierrick; Biastoch, Arne.
The Agulhas Current plays a crucial role in the thermohaline circulation through its leakage into the South Atlantic Ocean. Under both past and present climates, the trade winds and westerlies could have the ability to modulate the amount of Indian-Atlantic inflow. Compelling arguments have been put forward suggesting that trade winds alone have little impact on the magnitude of Agulhas leakage. Here, employing three ocean models for robust analysisa global coarse-resolution, a regional eddy-permitting, and a nested high-resolution eddy-resolving configurationand systematically altering the position and intensity of the westerly wind belt in a series of sensitivity experiments, it is shown that the westerlies, in particular their intensity, control the...
Tipo: Text
Palavras-chave: Boundary currents; Meridional overturning circulation; Wind stress; Mesoscale models; Numerical analysis; Modeling.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00161/27247/25452.pdf

Aid and Australian Aid Policy
Provedor de dados: 31
Autores: Bhattacharya,   Debesh.
Few issues of economic development arouse such deep emotions or controversies as the role of the foreign sector. Most orthodox economists believe that foreign aid, investment, technology and transnational corporations (TNC) are important contributory factors to economic development. On the other hand, the neo-Marxist paradigm suggests that the present system revolving around the foreign sector represents the continuation of domination over the developing by developed countries. Foreign aid, investment, technology and TNC are regarded as tools of neo-imperialism, the devices by which developed countries continue to retain control over the economies of the ex -colonies. The role of foreign aid in economic development is also criticised by some extreme right...
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy; Food Security and Poverty.
Ano: 1990
URL: http://purl.umn.edu/12284

Air Emissions of Ammonia and Methane from Livestock Operations: Valuation and Policy Options
Provedor de dados: 31
Autores: Shih,   Jhih-Shyang; Burtraw,   Dallas; Palmer,   Karen L.; Siikamaki,   Juha.
The animal husbandry industry is a major emitter of methane, which is an important greenhouse gas. The industry is also a major emitter of ammonia, which is a precursor of fine particulate matter, arguably the number-one environment-related public health threat facing the nation. We present an integrated process model of the engineering economics of technologies to reduce methane and ammonia emissions at dairy operations in California. Three policy options are explored: greenhouse gas offset credits for methane control, particulate matter offset credits for ammonia control, and expanded net metering policies to provide revenue for the sale of electricity generated from captured methane gas. Individually, any of these policies appears to be sufficient to...
Tipo: Working or Discussion Paper
Palavras-chave: Methane; Ammonia; Carbon dioxide; Greenhouse gases; Climate change; Offset; Particulate matter; Net metering; Environmental policy; CAFO; Manure management; Biodigester; Electricity; Global warming; Cost-benefit; Incentive approach; Livestock Production/Industries; Q2; Q4; Q53.
Ano: 2006
URL: http://purl.umn.edu/10749

Air pollution and cardiovascular hospital admissions in a medium-sized city in São Paulo State, Brazil
Provedor de dados: 56
Autores: Nascimento,L.F.C.
The objective of the present study was to estimate the contribution of environmental pollutants to hospital admissions for cardiovascular disease. A time series ecological study was conducted on subjects aged over 60 years and living in São José dos Campos, Brazil, with a population near 700,000 inhabitants. Hospital admission data of public health patients (SUS) were obtained from DATASUS for the period between January 1, 2004 and December 31, 2006, according to the ICD-10 diagnoses I20 to I22 and I24. Particulate matter with less than 10 µm in aerodynamic diameter, sulfur dioxide and ozone were the pollutants examined, and the control variables were mean temperature and relative humidity. Data on pollutants were obtained from the São Paulo State Sanitary...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Air pollution; Particulate matter; Cardiovascular diseases; Time series studies.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000700017

Air pollution and neonatal deaths in São Paulo, Brazil
Provedor de dados: 56
Autores: Lin,C.A.; Pereira,L.A.A.; Nishioka,D.C.; Conceição,G.M.S.; Braga,A.L.F.; Saldiva,P.H.N.
Air pollution has been associated with health effects on different age groups. The present study was designed to assess the impact of daily changes in air pollutants (NO2, SO2, CO, O3, and particle matter (PM10)) on total number of daily neonatal deaths (those that occur between the first and the 28th days of life) in São Paulo, from January 1998 to December 2000, since adverse outcomes such as neonatal deaths associated with air pollution in Brazil have not been evaluated before. Generalized additive Poisson regression models were used and nonparametric smooth functions (loess) were adopted to control long-term trend, temperature, humidity, and short-term trends. A linear term was used for holidays. The association between air pollutants and neonatal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neonatal mortality; Infant mortality; Air pollution.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000500019

Air Pollution Control Policy Options for Metro Manila
Provedor de dados: 31
Autores: Krupnick,   Alan J.; Morgenstern,   Richard D.; Fischer,   Carolyn; Rolfe,   Kevin; Logarta,   Jose; Rufo,   Bing.
The Asian Development Bank has sponsored research on market-based instruments for managing pollution in Metro Manila, Philippines, where air quality is seriously degraded. This report offers three policy options for reducing particulate emissions and their precursors. For stationary sources, we recommend an emissions fee that creates efficient financial incentives to reduce emissions while raising revenues for monitoring and enforcement activities. For mobile sources, we propose a pilot diesel retrofit program using a low-cost technology that is effective at existing 2,000 ppm sulfur content. Second, we recommend a charge on the sulfur content of diesel fuel to encourage meeting and surpassing the 500 ppm standard to allow for more advanced particulate...
Tipo: Working or Discussion Paper
Palavras-chave: Air pollution; Emissions tax; Philippines; Particulates; Environmental Economics and Policy; Q25; Q01.
Ano: 2003
URL: http://purl.umn.edu/10612

Air-assisted boom sprayer and spray deposition on bean plants
Provedor de dados: 63
Autores: Bauer,Fernando Cesar; Raetano,Carlos Gilberto.
The development of safe pesticide application techniques with low volume rates, frequency and spray drift, along with the need to obtain better control level of crop pest control levels, justify the air-assistance in boom sprayers. The aim of this research was to evaluate the spray deposition on bean plants with different nozzles and volume rates by air-assisted and non-assisted sprayers. A completely randomized experiment was carried out using copper oxide as a tracer (50% metalic copper) for deposit evaluation. The artificial targets were fixed on the upper and under-side of the leaflets, at the top and lower third of the same plants under the spray boom. After application, targets were washed individually with an extracting solution of nitric acid (1.0...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Application technique; Tracer; Boom sprayer.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000200002

Air-sea CO2 fluxes in a coastal embayment affected by upwelling: physical versus biological control
Provedor de dados: 5
Autores: Alvarez, M; Fernandez, E; Perez, Ff.
Water column pCO(2) and air-sea CO2 fluxes were studied during an 18-month period (May 1994-September 1995) in a coastal embayment affected by upwelling, located in the northwestern Iberian Peninsula (Ria de Vigo and adjacent shelf). Overall, the region acted as a net annual atmospheric CO, sink, with magnitude ranging from 0.54 mgC m(-2) d(-1) in the Ria estuary to 22 mgC m(-2) d(-1) offshore. During moderate upwelling and upwelling relaxation conditions the sampling area was a sink for atmospheric CO2. By contrast, during winter conditions and during intense upwelling the flux reversed towards the atmosphere. The relative influence of physical and biological processes on pCO(2) was evaluated using two different approaches: firstly, statistical analysis...
Tipo: Text
Palavras-chave: Dioxyde de carbone; Échange air-mer; Variabilité spatiale-temporelle; Contrôle physique-biologique; Nord-ouest de la péninsule Ibérique; Carbon dioxide; Air-sea exchange; Spatial-temporal variability; Physical-biological control; Northwestern Iberian Peninsula.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00325/43599/43983.pdf

Aislamiento, clonaje y caracterización biológica del ADN  complementario de la Hormona Hiperglucemiante de Crustáceos de  Litopenaeus schmitti (Decapoda: Penaeidae)
Provedor de dados: 20
Autores: Yuliet Morera Darias.
El desarrollo alcanzado en la camaronicultura hasta el presente exige estudios cada vez más  novedosos en vista a enfrentar nuevos retos. En este sentido resulta necesario el conocimiento de  la estructura-función de los neuropéptidos de la familia de la Hormona Hiperglucemiante de  Crustáceos (familia HHC). Ella  juega un importante papel en el metabolismo y la fisiología  influyendo directamente sobre la muda, el crecimiento, la reproducción, el metabolismo de la  glucosa y lípidos, entre otras. La Hormona Hiperglucemiante de Crustáceos (HHC) es el  componente mayoritario de la familia HHC y el único neuropéptido aislado y secuenciado hasta  el presente. Ella es una hormona pleiotrópica y su función principal es regular el nivel de glucosa  en la...
Tipo: Theses and Dissertations
Palavras-chave: Marine shrimp culture; Anatomical structures; Functional analysis.
Ano: 2009
URL: http://hdl.handle.net/1834/5528

Aislamiento de microorganismos para control biológico de Moniliophthora roreri
Provedor de dados: 109
Autores: Suárez Contreras,Liliana Yanet; Rangel Riaño,Alba Luz.
Moniliophthora roreri es un hongo que causa la moniliasis, una enfermedad de la mazorca en el cultivo de cacao (Theobroma cacao), con pérdidas hasta del 60% de la cosecha. El control biológico utilizando microorganismos endófitos surge como una alternativa para el manejo de esta enfermedad. En la presente investigación se evaluaron microorganismos con potencial para control biológico de M. roreri en Norte de Santander, Colombia. Para el efecto, se aisló e identificó este fitopatógeno y se utilizaron protocolos de desinfección de los posibles microorganismos antagonistas con siembras por diluciones seriadas, selección de los géneros microbianos con mayor potencial antagónico y evaluación de las cepas por la prueba de plato dual para evaluar el efecto...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonistas; Antibiosis; Cacao; Control biológico; Moniliophthora roreri.
Ano: 2013
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122013000400011

Aislamiento e identificación de bacterias presentes en cultivos de microalgas marinas. Actividad antibacteriana de algunas de las especies encontradas
Provedor de dados: 20
Autores: Hernández-Zulueta, J.; Leal, S.; Lugioyo, G.M.; Loza, S.; Curbelo, R.; Caballero, V.M.
El presente estudio de las siguientes especies de microalgas marinas tuvo como objetivo identificar y determinar la actividad antibacteriana de la microbiota presente en los cultivos de las siguientes especies de microalgas marinas: Chaetoceros ceratosporum, Chaetoceros muelleri, Thalassiosira sp., Thalassiosira weisflogii, Amphora sp., Navicula sp. y Tetraselmis suecica, especies que se utilizan en la alimentación de animales acuáticos. Se estudiaron las características morfológicas, culturales y tintoriales de las cepas aisladas, así como las características fisiológicas y bioquímicas. Para la clasificación se utilizó el Manual de Bergey (Krieg &amp; Holt, 1984; Sneath et al., 1986). La actividad antibacteriana se determinó mediante el método de difusión...
Tipo: Journal Contribution
Palavras-chave: Check lists; Isolation (genetics); Algae culture.
Ano: 2011
URL: http://hdl.handle.net/1834/4651

Aislamiento y caracterización celular de exosomas de plasma para su uso como biomarcadores de diagnóstico
Provedor de dados: 38
Autores: Orozco-Romero,María de Jesús; Borja-Urby,Raúl; Ponce-Castañeda,Martha Verónica; Durán-Figueroa,Noé Valentín.
Los exosomas son vesículas membranosas extracelulares esenciales en la comunicación intercelular a larga distancia, viajan en los fluidos corporales y entregan mensajes moleculares dirigidos a la mayoría de las células de todo el organismo. La liberación de mensajes vía exosomas ocurre en forma de ADN, ARN o proteínas; dicha liberación se ha asociado a diferentes condiciones fisiológicas normales y patológicas, como el cáncer. Por lo anterior, el aislamiento eficiente y caracterización celular de exosomas de plasma es clave para su uso como biomarcadores no invasivos de diversas enfermedades. En el presente estudio se purificaron exosomas a partir de muestras clínicas de plasmas de pacientes previamente diagnosticados con retinoblastoma y de individuos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomarcadores; Exosomas; Retinoblastoma.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572016000400026

Aislamiento y selección de cepas de Trichoderma para el control biológico de Sclerotinia sclerotiorum (Lib.) de Bary y Sclerotinia minor Jagger
Provedor de dados: 32
Autores: Ibarra Medina, Verónica Azucena.
Los hongos fitopatógenos Sclerotinia sclerotiorum y S. minor afectan raíces, tallos y  tubérculos de más de 400 especies de plantas, reduciendo los rendimientos del cultivo hasta en  50%. Con el propósito de obtener microorganismos dirigidos al control de los patógenos  mencionados, se realizaron aislamientos del género Trichoderma, a partir de muestras de suelo  con diferente uso agropecuario y forestal, de los cuales se obtuvieron 71 aislamientos por la  técnica de cebo. Mediante la técnica de cultivos duales se evaluó la colonización y el  micoparasitismo de los aislados de Trichoderma sobre el micelio de ambos patógenos, además  del daño hacia los esclerocios. El porcentaje de colonización sobre el micelio de S. sclerotiorum y  S. minor, fue mayor en...
Tipo: Tesis
Palavras-chave: Micoparasitismo; Sclerotinia; Degradación de esclerocios; Inoculantes; Maestría; Edafología; Mycoparasitism; Sclerotia degradation; Inoculants.
Ano: 2008
URL: http://hdl.handle.net/10521/1239

AISLAMIENTOS DE Trichoderma spp. PROMISORIOS PARA EL CONTROL BIOLÓGICO DEL TIZÓN DE LA VAINA (Rhizoctonia solani Kühn) EN ARROZ
Provedor de dados: 100
Autores: Reyes Duque,Yusimy.
Tipo: Journal article
Ano: 2012
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522012000100018

Ajmalicine Bioproduction in Catharanthus Roseus (L) G. Don Inoculated with Arbuscular Mycorrhiza and Fertilized with Nitrogen
Provedor de dados: 90
Autores: Monnerat,Cecília Silva; Freitas,Marta Simone Mendonça; Vieira,Ivo José Curcino; Martins,Marco Antônio; Carvalho,Almy Junior Cordeiro de; Santos,Paulo Cesar dos; Lima,Thaísa Capato.
ABSTRACT Catharanthus roseus (L) G. Don (Madagascar periwinkle) belongs to the Apocynaceace family and is widely spread throughout tropical and subtropical regions of the world. The plant produces several important alkaloids, such as ajmalicine and serpentine, which are used in the treatment of circulatory diseases. The potential of inoculation with arbuscular mycorrhizal fungi (AMF) and nitrogen fertilization to enhance the production of alkaloids was investigated in periwinkle. A greenhouse experiment was carried out to evaluate the effects of arbuscular mycorrhizal fungi and N fertilizer dosages on plant growth, production of ajmalicine, and nutrient content in roots. The concentration of ajmalicine was determined by reverse-phase high-performance...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Periwinkle; Apocynaceae; Alkaloids; Plant nutrition.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100416

Ajuste de las distribuciones GVE, LOG y PAG con momentos L depurados (1,1) en 21 registros de crecientes anuales de la region hidrológica no. 10 (Sinaloa), México
Provedor de dados: 115
Autores: Campos-Aranda,Daniel F.
Resumen El dimensionamiento y seguridad hidrológica de todas las obras hidráulicas de aprovechamiento o control depende de las crecientes de diseño. La estimación confiable de esas magnitudes hidrológicas está asociada con la disponibilidad de datos de gastos máximos anuales y su representación, lo más exacta posible, en una función de distribución de probabilidades (FDP). El método de los momentos L, que son combinaciones lineales de los estadísticos de orden, es uno de los procedimientos de ajuste más exactos que permite la estimación de los parámetros de una FDP. Versiones robustas se han propuesto de los momentos L, al dar peso nulo a los valores extremos de la muestra; es el caso de los momentos L depurados (1,1) que no toman en cuenta el dato menor...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Momentos L momentos L depurados (1; 1) distribuciones GVE LOG y PAG error estándar de ajuste gráficos de diagnóstico.
Ano: 2016
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952016000100015

Ajuvant effect of a Synthetic Aluminium - Magnesium Silicate on chloroquine phosphate, against Plasmodium berghei.
Provedor de dados: 17
Autores: madike ezeibe; obianuju obianuju Okoroafor; nnenna elendu-eleke; Augustine Ngene.
Abstract effect of a synthetic Aluminium - Magnesium Silicate (AMS) on antiplasmodial activity of chloroquine was tested. Plasmodium berghei-infected mice were treated with 7 mg/kg, 5 mg/kg and 3 mg/kg chloroquine, respectively. The two subgroups in each experiment were treated with chloroquine alone and with chloroquine in AMS respectively. Parasitaemia (%) of the group treated with 7 mg/kg was higher than that of the control. At 5 mg/kg, chloroquine treatment significantly reduced parasitaemia from 3.60 to 2.46 (P =0.01). Incorporating chloroquine in AMS significantly improved its ability to reduce P. berghei parasitaemia at 5 mgkg and at 3 mg/kg, from 2.46 0.21 to 1.57 0.25 (P = 0.01) and from 3.82 0.06 to 2.12 0.08 (P =0.01 ). It also increased...
Tipo: Manuscript
Palavras-chave: Pharmacology.
Ano: 2012
URL: http://precedings.nature.com/documents/6749/version/1

AKT inhibitor suppresses hyperthermia-induced Ndrg2 phosphorylation in gastric cancer cells
Provedor de dados: 56
Autores: Tao,Yurong; Guo,Yan; Liu,Wenchao; Zhang,Jian; Li,Xia; Shen,Lan; Ru,Yi; Xue,Yan; Zheng,Jin; Liu,Xinping; Zhang,Jing; Yao,Libo.
Hyperthermia is one of the most effective adjuvant treatments for various cancers with few side effects. However, the underlying molecular mechanisms still are not known. N-myc downstream-regulated gene 2 (NDRG2), a tumor suppressor, has been shown to be involved in diverse cellular stresses including hypoxia, lipotoxicity, etc. In addition, Ndrg2 has been reported to be related to progression of gastric cancer. In the current study, our data showed that the apoptosis rate of MKN28 cells increased relatively rapidly to 13.4% by 24 h after treatment with hyperthermia (42°C for 1 h) compared to 5.1% in control cells (P &lt; 0.05). Nevertheless, there was no obvious change in the expression level of total Ndrg2 during this process. Further investigation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hyperthermia; Gastric cancer; Ndrg2; Apoptosis; AKT inhibitor.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000400394

Albendazole Sulphoxide Administered Prior to Mating andits Relation with Fertilization and Mouse Embryo Development
Provedor de dados: 77
Autores: Teruel,M; Catalano,R; Salomón,L.
The aim of this work was to evaluate the effect of albendazole sulphoxide (ABZSO) administered to Balb C mice prior to mating on fertilization rate and preimplantational embryo development. Twenty four female mice 5-8 weeks of age were superovulated by intraperitoneal injection of 7.5 UI of equine chorionic gonadotropin (eCG, Novormon®, Laboratorios Syntex S.A., Argentina); 48 h later they received 10 IU of human chorionic gonadotropin (hCG, Profasi®, Laboratorios Serono, Méjico) and were paired with males of proven fertility. Females received 100 mg/kg or 200 mg/kg of ABZSO orally at the time of hCG administration, prior to mating. The control group received carboxymethylcellulose, vehicle used to prepare the drug suspension. Pregnant females were killed...
Tipo: Journal article
Palavras-chave: Albendazole Sulphoxide; Reproductive toxicity; Embryo development; Mouse.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300024

Alcaloides de pemoche (Erythrina herbacea L.) como larvicidas contra el mosquito de la fiebre amarilla (Aedes aegypti L.).
Provedor de dados: 32
Autores: Salazar Aguilar, Sandra.
El mosquito transmisor de la fiebre amarilla, A. aegypti, también es vector del dengue, enfermedad con importancia a nivel mundial por la problemática socioeconómica provocada en las epidemias. En México los estados considerados económicamente importantes, son áreas potenciales la transmisión de esta enfermedad. Por lo que la búsqueda de sustancias para el control de este organismo es importante, ya que comienza a volverse resistente a insecticidas organosintéticos. Así en el presente estudio se realizaron pruebas con extractos de pemoche Erythrina herbacea, para encontrar posibles sustancias que puedan utilizarse para este fin. Se obtuvieron de las semillas de esta especie, los extractos crudos metanólicos: fracción de alcaloides libres (FAL) y fracción...
Palavras-chave: Erythrina herbacea; Aedes aegypti; Toxicidad de alcaloides; Actividad larvicida; Alcaloide diénico; Toxicity of alkaloids; Larvicida activity; Dienic alkaloid; Maestría; Botánica.
Ano: 2011
URL: http://hdl.handle.net/10521/406

Alcaloides de pemoche (Erythrina herbacea L.) como larvicidas contra el mosquito de la fiebre amarilla (Aedes aegypti L.).
Provedor de dados: 32
Autores: Salazar Aguilar, Sandra.
El mosquito transmisor de la fiebre amarilla, A. aegypti, también es vector del dengue, enfermedad con importancia a nivel mundial por la problemática socioeconómica provocada en las epidemias. En México los estados considerados económicamente importantes, son áreas potenciales la transmisión de esta enfermedad. Por lo que la búsqueda de sustancias para el control de este organismo es importante, ya que comienza a volverse resistente a insecticidas organosintéticos. Así en el presente estudio se realizaron pruebas con extractos de pemoche Erythrina herbacea, para encontrar posibles sustancias que puedan utilizarse para este fin. Se obtuvieron de las semillas de esta especie, los extractos crudos metanólicos: fracción de alcaloides libres (FAL) y fracción...
Palavras-chave: Erythrina herbacea; Aedes aegypti; Toxicidad de alcaloides; Actividad larvicida; Alcaloide diénico; Toxicity of alkaloids; Larvicida activity; Dienic alkaloid; Maestría; Botánica.
Ano: 2011
URL: http://hdl.handle.net/10521/406

Alelopatia de cultivos de cobertura vegetal sobre plantas infestantes - DOI: 10.4025/actasciagron.v28i3.973
Provedor de dados: 1
Autores: Tokura, Luciane Kazue; UNESP; Nóbrega, Lúcia Helena Pereira; UNIOESTE - Cascavel.
O presente trabalho avaliou o potencial alelopático de cultivos de cobertura vegetal de trigo, aveia preta, milheto, nabo forrageiro e colza sobre o desenvolvimento de plantas infestantes e verificou qual das coberturas vegetais exerce maior controle sobre as mesmas. Os cultivos de cobertura vegetal foram implantados sob preparo convencional (uma aração e uma gradagem) no Núcleo Experimental de Engenharia Agrícola (NEEA), da Universidade Estadual do Oeste do Paraná (Unioeste), Cascavel, Estado do Paraná. Mensalmente, realizou-se o acompanhamento e identificação das plantas infestantes emersas nas áreas de cobertura vegetal no período de agosto de 2000 a agosto de 2001. Os resultados obtidos permitiram concluir que das espécies encontradas, o capim...
Palavras-chave: 5.01.03.00-8    Fitotecnia plantas daninhas; Rotação de culturas; Interferência; Controle cultural 5.01.03.00-8    Fitotecnia.
Ano: 2006
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/973

Aleochara pseudochrysorrhoa, a new species from southern Brazil (Coleoptera: Staphylinidae: Aleocharinae), with a complete checklist of Neotropical species of the genus
Provedor de dados: 104
Autores: Caron,Edilson; Mise,Kleber M.; Klimaszewski,Jan.
The ectoparasitoid habit of larvae and the active predatory habit of adults of Aleochara Gravenhorst, 1802 established this group as natural fly regulators and important for ecological studies, biological control programs and forensic entomology. In the current study, a new aleocharine species, Aleochara pseudochrysorrhoa sp. nov., from southern Brazil, is described and its natural history is briefly discussed. The species has a robust body, uniformly dark-brown to black with apex of abdomen rust-brown, median lobe of male with expanded bulbus, sclerites of internal sac forming complex arrangement, and female with spermatheca L-shaped. Aleochara pseudochrysorrhoa sp. nov. may be considered to be closely related to the species belonging to the lustrica...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forensic entomology; New name; Rove beetle; South America; Taxonomy.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000400022

Algicidal effects of aqueous leaf extracts of neem (Azadirachta indica) on Scenedesmus quadricauda (Turp.) de Brébission
Provedor de dados: 39
Autores: Chia,Mathias Ahii; Akinsanmi,Jamiu Taiwo; Tanimu,Yahuza; Ladan,Zakari.
The application of synthetic algaecides for the control of algae produces by-products that are sometimes toxic to the environment. There is a need for natural and cheap alternatives to synthetic algaecides. In the present study, we investigated the potential of aqueous crude extract of Azadirachta indica to inhibit the growth of Scenedesmus quadricauda. Phytochemical screening of the extract revealed the presence of groups of bioactive compounds that are capable of inhibiting microalgal growth. Chlorophyll a concentration, dry weight production and cell density of microalga decreased with increasing crude extract concentration. After three days of exposure, the 1000 mg/L extract concentration resulted in complete growth inhibition and cell lysis....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algaecide; Growth inhibition; Microalgae; Neem; Oxidative stress; Phenotypic plasticity.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000100001

Algoritmo Matemático para Cuantificar Directamente el Ángulo de Convergencia en Preparaciones de Dientes Artificiales
Provedor de dados: 77
Autores: Flores,Marco; Lebrecht,Walter; Figueroa,Rodolfo.
El objetivo de este trabajo fue determinar un algoritmo matemático para cuantificar directamente el ángulo de convergencia (AC) en troqueles de preparaciones dentarias. El modelo experimental consistió en preparaciones coronarias simuladas sobre troqueles de yeso, en el cual el AC fue calculado por tres formulas trigonométricas. Las formulas fueron obtenidas de un modelo matemático en el cual la preparación coronaria representa una forma de pirámide truncada, la cual permite una proyección triangular en un plano. Fueron realizadas 60 mediciones in situ sobre las paredes de 15 troqueles. Se obtuvo una imagen de cada troquel usando una cámara digital (Schick® CDR). El AC fue medido usando la herramientas del software (Control). Los datos fueron analizados...
Tipo: Journal article
Palavras-chave: Prótesis; Corona dentaria; Preparación coronaria; Ángulo de convergencia; Modelo matemático.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400007

ALGUNAS CONSIDERACIONES PARA EL SACRIFICIO SANITARIO MASIVO DE AVES DE CORRAL EN BROTES DE INFLUENZA AVIAR
Provedor de dados: 101
Autores: Alfonso,P; Percedo,María Irian; Abeledo,María Antonia; Fernández,A.
La necesidad del sacrificio sanitario de grandes cantidades de animales, como medida de control de enfermedades graves es compleja y constituye un problema sanitario, ambiental y ético no resuelto totalmente a escala mundial. En el caso particular de las aves es una tarea difícil dada la elevada densidad en los sistemas de producción industrial, agravada en el caso de la influenza aviar por el aumento del potencial zoonótico, lo cual demanda consideraciones especiales. En este artículo se reseñan las consideraciones para la toma de la decisión respecto al sacrificio de aves infectadas por el virus de la IA y en riesgo, los métodos de sacrificio elegibles por la seguridad para el personal involucrado, la preservación del ambiente y el bienestar animal; así...
Tipo: Journal article
Palavras-chave: Influenza aviar; Despoblación; Sacrificio sanitario; Saneamiento; Aves de corral; Erradicación; Control.
Ano: 2007
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2007000200001

ALGUNAS PAUTAS PARA ESTABLECER UNA ESTRATEGIA DE VIGILANCIA EPIDEMIOLÓGICA DE LA INFLUENZA AVIAR
Provedor de dados: 101
Autores: Alfonso Zamora,P; Percedo,María Irian; Abeledo,Ma. Antonia; Noda,Julia.
La explosiva y casi simultánea aparición de la influenza aviar (IA) en múltiples países, ha sido interpretada por organismos sanitarios internacionales como evidencia de la debilidad de los sistemas de vigilancia y alerta temprana para advertir el peligro de introducción y difusión de la enfermedad. Los países y regiones pueden adoptar estrategias para la vigilancia de la IA más o menos complejas, en dependencia de los sistemas de vigilancia epidemiológica preestablecidos, las características de la industria avícola, los factores de riesgo identificados, y los recursos disponibles, entre otras consideraciones; pero es indiscutible la necesidad de fortalecer tanto la vigilancia pasiva como activa. El nuevo perfil de la IA ha aumentado la disponibilidad de...
Tipo: Journal article
Palavras-chave: Influenza aviar vigilancia; Control diagnóstico virus servicios veterinarios.
Ano: 2008
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2008000200001

Algunos factores fisiológicos y nutricionales que afectan la incidencia de diarreas posdestete en lechones
Provedor de dados: 108
Autores: Reis de Souza,Tércia Cesária; Mariscal Landín,Gerardo; Escobar García,Konisgmar.
El destete produce perturbaciones en el funcionamiento digestivo y en la salud intestinal de los lechones y casi siempre se asocia con una severa depresión del crecimiento y diarrea. Por ello, con frecuencia se agregan dosis subterapéuticas de antibióticos al alimento como medida preventiva contra las diarreas y como promotores de crecimiento. Sin embargo, debido a la prohibición del uso de antibióticos en la alimentación animal, en diferentes partes del mundo se ha observado un incremento de las diarreas posdestete en lechones. Para contrarrestar este problema se ha promovido el uso de estrategias nutricionales como medidas de control. El presente trabajo tuvo como objetivo revisar algunos aspectos relacionados con la nutrición, la fisiología digestiva,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lechones; Destete; Nivel de proteína cruda; Diarrea.
Ano: 2010
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0301-50922010000400004

Alguns aspectos sobre roedores domésticos e seu controle em construções rurais.
Provedor de dados: 14
Autores: CAJUEIRO, I. V. de M.
bitstream/item/87587/1/CT04.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Roedor; Rato; Construção rural; Controle biológico; Controle físico; Controle químico; Rodents; Mice; Biological control; Physical control; Chemical control.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/10073

Alien Species Alert: Didemnum vexillum Kott, 2002: Invasion, impact, and control
Provedor de dados: 5
Autores: Mckenzie, Cynthia; Reid, Vanessa; Lambert, Gretchen; Matheson, Kyle; Minchin, Dan; Pederson, Judith; Brown, Lyndsay; Curd, Amelia; Gollasch, Stephan; Goulletquer, Philippe; Occhipinti-ambrogi, Anna; Simard, Nathalie; Therriault, Thomas.
Didemnum vexillum Kott (2002) is a high-impact, globally-invasive, colonial tunicate species that is native to Japan (Lambert, 2009; Stefaniak et al., 2012). It is generally a temperate cold-water organism, and its introduced range currently includes New Zealand, the Netherlands, France, Ireland, United Kingdom, Spain, Italy, and both the west and east coasts of the United States and Canada (Lambert, 2009; Stefaniak et al., 2012; Tagliapietra et al., 2012; Ordóñez et al., 2015, Vercaemer et al., 2015). Like other invasive tunicates, D. vexillum has the capacity to reproduce rapidly, outcompete native species, deteriorate environmental integrity, and cause significant economic harm (Lambert, 2005; Blum et al., 2007; Daniel and Therriault, 2007; Langyel et...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00378/48888/49327.pdf

Aligning Insect IPM Programs With a Cropping Systems Perspective: Cover Crops and Cultural Pest Control in Wisconsin Organic Corn and Soybean
Provedor de dados: 21
Autores: Cullen, E.M.; Holm, K.M.
This article presents a conversation among researcher, agroecology student, and farmers about the association between cover crops and seedcorn maggot in organic grain crops. Survey data showed that Wisconsin organic farmers would use cover crop management, insect degree day forecasting, and planting date cultural controls, given appropriate knowledge context and extension information provision. We developed electronic and print resources and engaged with farmers and educators nationally through the eOrganic Community of Practice. Project outcomes exemplify student and farmer ability to effect change in land grant university extension recommendations through integrated pest management content and delivery aligned with a cropping systems perspective.
Tipo: Journal paper
Palavras-chave: "Organics" in general Crop combinations and interactions Cereals; Pulses and oilseeds Crop husbandry.
Ano: 2013
URL: http://orgprints.org/24311/7/24311.pdf

Alimentation du merlan Merlangius merlangus L. en Mer Celtique
Provedor de dados: 5
Autores: Du Buit, Marie-henriette; Merlina, Frédéric.
The importance of predation by the whiting (Merlangius merlangus ) from the Celtic Sea has been studied by analysis of stomach contents. Eight hundred and thirteen whitings have been examined during 1984-1986 period. Fish food totalizes 97% of food. It is chiefly a swimming species: no cannibalism has been observed. The daily food index varies between 2 and 4% according to the length and the annual consumption on fishes of nominal catches (11230 t for 1983) would reach 135,000 t corresponding to species already fished for human consumption and the fish meal industry.
Tipo: Text
Palavras-chave: Celtic Sea; ANE; Gadidae; Pisces; Merlangius merlangus; Predator control; Stomach content; Feed composition; Feeding.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/publication-1744.pdf

Alkaline phosphatase activity in plasma and liver of rats submitted to chronic exposure to fluoride
Provedor de dados: 52
Autores: Fernandes,Mileni da Silva; Iano,Flávia Godoy; Rocia,Vivian; Yanai,Marcela Mitsuko; Leite,Aline de Lima; Furlani,Tatiana Almeida; Buzalaf,Marília Afonso Rabelo; Oliveira,Rodrigo Cardoso de.
The aim of this study was to compare the effect of fluoride (F) on alkaline phosphatase activity in the liver and plasma of the rats. Four groups of male Wistar rats (n=6), which received drinking water containing 5, 15 or 50 ppm F or deionized water (control) throughout the experiment were included in the study. The animals were euthanized and had their tissues and blood plasma collected for the analysis of fluoride and alkaline phosphatase. There was an increase in F concentration in most tissues in the animals treated with higher F concentrations, except for the heart. The alkaline phosphatase assay showed an increase in the activity in the liver and blood plasma of the animals treated with fluoride concentrations of 15 and 50 ppm (p&lt;0.05). This...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alkaline phosphatase; Fluoride; Liver; Kidney.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000600014

Alkyl Ether Sulfate Improves Efficacy of Herbicides Against Common Goosefoot and Field Bindweed in Wheat
Provedor de dados: 87
Autores: TANVEER,A.; ABBAS,N.; SAFDAR,M.E.; IKRAM,R.M.
ABSTRACT: Tank mixed application of herbicides with adjuvant is required for effective weed management and to reduce herbicide load on agricultural crops. Field studies were conducted to investigate the effect of herbicides at reduced rates with adjuvant on common goosefoot (Chenopodium album) and field bindweed (Convolvulus arvensis) and grain yield of wheat for two consecutive winter seasons. Treatments included post-emergence foliar application of four herbicides viz., fluroxypyr + tribenuron-methyl + clopyralid, mesosulfuron-methyl + iodosulfuron-methyl sodium, bromoxynil + MCPA, iodosulfuron-methyl sodium (pre mixed formulations) at their recommended rates 244.5, 14.2, 444.6, 10 g a.i. ha-1, respectively and 25% reduced rates with alkyl ether sulfate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adjuvant; Grain yield; Herbicides; Wheat.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100283

'All models are wrong - but some are useful' - a report from an EWRS workshop on modelling weed population dynamics
Provedor de dados: 21
Autores: Rasmussen, I.A.; Bastiaans, L.; Holst, N.; Grundy, A.; Melander, B.
A three-day workshop on modelling weed population dynamics partially sponsored by the European Weed Research Society (EWRS) was held in October 2006 at Research Centre Flakkebjerg. 24 participants attended the workshop from 8 countries, mainly Europe and USA. The aim of the workshop was to gather some of those active and interested in the field, i.e. most of the participants had either published papers on weed population dynamic models or had a model under development. By gathering these people, it was our hope to learn from each other and possibly benefit by increasing the knowledge and use of each other's work. The EWRS saw the workshop as an opportunity to interconnect some of the work going on in (at least) three working groups: Weed Seed Germination...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2007
URL: http://orgprints.org/11348/1/WeedDynamics_keynote_Rasmussen_rev2.doc

Allele-specific primer based identification of dimeric alpha-amylase inhibitor
Provedor de dados: 17
Autores: Pradeep Sharma; Pooja Sharma; Manoj Saini; S. S. Singh.
Wheat is one of the most important staple food crops cultivated over 200 mha in the range of environment throughout the world. Wheat production must continue to increase by 2% annually, more particularly in developing world including south-east Asia. Besides increasing the inherent productivity of wheat, it is important to minimize the losses caused to production by various abiotic and biotic factors. Alpha&amp;#x2013;amylase inhibitors are attractive candidates for the control of seed weevils as these insects are highly dependent on starch as the energy source. They play an important role in the carbohydrate metabolism of many heterotrophic and autotrophic organisms. In this study, we aimed to make sequence comparison and phylogenetic relationship among...
Tipo: Poster
Palavras-chave: Biotechnology.
Ano: 2011
URL: http://precedings.nature.com/documents/5596/version/1

Allelobios och bladluskontroll i ekologisk odling
Provedor de dados: 21
Projektet bygger på upptäckten att allelobiotisk kommunikation mellan växter inducerar resistens mot skadedjur (bladlöss) och gynnar sökbeteendet hos deras naturliga fiender(nyckelpigor). Med särskild inriktning på förhållandena i ekologisk odling ska växtmaterial (sorter och arter) som kan användas för att utveckla odlingssystem som tillvaratar denna växtskyddsresurs identifieras. Särskild uppmärksamhet ska ägnas vårstråsäd (korn). För att kunna optimera funktionen av det allelobiotiska systemet ska undersökningar även göras av den inducerade resistensens mekanismer, t.ex. lokalisering av barriärer i cellvävnad och aktiva substanser. Likaså ska förhållandet mellan konstitutionellt försvar och inducerad (allelobiotiskt) resistens undersökas med avseende på...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023

Allelopathic Activity of Crop Residue Incorporation Alone or Mixed Against Rice and its Associated Grass Weed Jungle Rice (Echinochloa colona [L.] Link)
Provedor de dados: 117
Autores: Khaliq,Abdul; Matloob,Amar; Ata Cheema,Zahid; Farooq,Muhammad.
Weed suppression is one of the several benefits achieved by soil incorporation of crop residues and such suppression is believed to be allelopathic in nature. The allelopathic potential of different crop residues: viz. sorghum (Sorghum bicolor [L.] Moench), sunflower (Helianthus annuus L.), brassica (Brassica campestris L.) was evaluated in rice (Oryza sativa L.) and jungle rice (Echinochloa colona [L.] Link). Chopped crop residues were soil-incorporated alone and mixed at 6 g kg-1 soil (12 t ha-1) and compared with a control without residues. Soil incorporation of residues substantially delayed germination of jungle rice. The time to start germination, time to 50% emergence, mean emergence time, emergence index, and final germination percentage were all...
Tipo: Journal article
Palavras-chave: Residues; Allelopathy; Sorghum; Sunflower; Brassica; Weed control.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000300012

Allelopathic bioactivity of fresh and infused aqueous extracts of Brazilian cherry (Eugenia uniflora L.) on lettuce and maize
Provedor de dados: 3
Autores: Boiago, Nayara Parisoto; Fortes, Andréa Maria Teixeira; Pilatti, Daiane Maria; Silva, Paulo Sérgio Siberti da.
 This study aimed to analyse the allelopathic bioactivity of fresh and infused aqueous extracts of Brazilian cherry leaves on the germination of lettuce and the initial development of maize. Brazilian cherry leaves were used to prepare a fresh aqueous extract (200 g L-1) and an infused extract (100 g L-1), which were diluted to concentrations of 0.4, 0.8, 1.2, 1.6 or 2.0% w/v. The variables evaluated in lettuce were the germination rate (GR), germination time index (GTI), germination speed index (GSI) and root length (RL). To determine the effect on the initial development of maize, we measured the shoot (SL) and root (RL) length. The experimental design included a factorial 2 × 5 design (two extracts and five concentrations), in addition to a control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.03.00.00-0; 2.03.03.00-9 Lactuca sativa; Zea mays; Allelopathy; Allelochemicals; Chemical ecology. Botânica; Fisiologia Vegetal.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/40972

ALLELOPATHIC EFFECT OF LEGUMINOUS WEEDS ON RATE, SYNCHRONIZATION AND TIME OF GERMINATION, AND BIOMASS PARTITIONING IN RICE
Provedor de dados: 87
Autores: ZOHAIB,A.; ANJUM,S.A.; JABBAR,A.; TABASSUM,T.; ABBAS,T.; NAZIR,U.
ABSTRACT The present study was aimed at determining the allelopathic influence of water extracts at varying concentrations (2.5% and 5% w/v) and residues with varying decomposition periods (0, 15 and 30 days) at 2% (w/w) concentration of four weeds (Trigonella polycerata, Vicia sativa, Lathyrus aphaca, Medicago polymorpha) against rate, synchronization and time of germination, and biomass partitioning of rice through plant and soil bioassays. Germination and biomass partitioning in rice plants were inhibited by extracts and residues. The maximum decrease in energy of germination (88.6%) and increase in time for 50% germination (210.4%) were caused by the L. aphaca extract at 5% concentration as compared to control. Root and shoot, fresh weight (13.6 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Leguminous weeds; Rice; Germination; Biomass partitioning.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100269

Allelopathic Effect of Lotus and Arrowhead Weed on Wheat, Wild Oat and Milkthistle Germination
Provedor de dados: 87
Autores: GUL,B.; IJAZ,S.; KHAN,H.
ABSTRACT: An experiment was conducted to investigate the allelopathic effects of lotus (Nelumbo nucifera Gaertn.) and arrowhead (Sagittaria sagittifolia (Brummitt &amp; Powell): L.) on seed germination of wheat and two associated weeds, namely, wild oat (Avena fatua L.) and milk thistle (Silybum marianum (L.) Gaertn.). The experiment was laid out in a Completely Randomized Design during May, 2014. Dried biomasses of lotus and arrowhead leaves were soaked in distilled water for 48 hrs for extract preparation. The extracts were applied at a rate of 5 and 10% concentrations to the seeds of wheat, wild oat and milk thistle at 25 °C in 10 cm wide Petri plates. A control treatment where only distilled water was applied to the seeds, was included for comparison....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquatic weeds allelopathy Nelumbo nucifera Gaertn. Sagittaria sagittifolia (Brummitt &amp;amp; Powell): L. Avena fatua L. Silybum marianum (L.) Gaertn.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100230

Allelopathic Effect of Parthenium hysterophorus on Germination and Growth of Some Important Crops and Weeds of Economic Importance
Provedor de dados: 87
Autores: HASSAN,G.; RASHID,H.U.; AMIN,A.; KHAN,I.A.; SHEHZAD,N.
ABSTRACT:  Parthenium hysterophorus  being a declared invasive weed worldwide is threatening the biodiversity of Pakistan. To study its allelopathic potential, laboratory and pots based studies were undertaken during July-August and October-November, 2010 in Weed Research Laboratory, Department of Weed Science, The University of Agriculture Peshawar, Khyber Pakhtunkhwa Pakistan. The experiments were conducted to investigate the allelopathic effect of parthenium on crops Triticum aestivum, Cicer arietinum and Brassica campestris, and weeds including Avena fatua, Asphodelus tenuifolius and Lolium rigidum The fresh leaves of P.hysterophorus were dried in shade and grinded. The desired quantity of powder was soaked for 16 hr. in the desired quantity of water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parthenium; Allelopathy; Wheat.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100331

Allelopathic effects of aqueous and organic fractions of Euphorbia dracunculoides Lam. on germination and seedling growth of chickpea and wheat
Provedor de dados: 117
Autores: Tanveer,Asif; Kamran Jabbar,Muhammad; Kahliq,Abdul; Matloob,Amar; Nadeem Abbas,Rana; Mansoor Javaid,Muhammad.
Identification of weed species with allelopathic potential and characterization of their adverse effects against associated crops is required for better understanding of weed-crop interactions. Phytotoxic activity of Euphorbia dracunculoides Lam. on germination and seedling growth of chickpea (Cicer arietinum L.) and wheat (Triticum aestivum L.) was investigated under controlled conditions. Two separate studies were done with each of four organic solvent fractions (n-hexane, chloroform, ethylacetate, 1-butanol) and crude aqueous (1:10 and 1:20) whole plant fractions of E. dracunculoides using distilled water and 0.05% (v/v) dimethyl sulfoxide (DMSO) as control. Different aqueous and organic fractions of E. dracunculoides had a significant bearing on...
Tipo: Journal article
Palavras-chave: Allelopathy; Weeds; Germination attributes; Suppression; Phenolics.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400006

Allelopathic Effects of Different Plant Water Extracts on Yield and Weeds of Wheat
Provedor de dados: 87
Autores: NAEEM,M.; CHEEMA,Z.A.; IHSAN,M.Z.; HUSSAIN,Y.; MAZARI,A.; ABBAS,H.T.
ABSTRACT: Use of synthetic herbicides to control weeds poses serious threats to sustainable agricultural production around the globe. The phytotoxic effect of different plant water extracts (i.e., sorghum, sunflower and mulberry) against weeds has been previously studied; however, their combined effects at different rates are yet to be explored. In this study, mixtures of allelopathic water extracts of sorghum + sunflower and sorghum + sunflower + mulberry were sprayed each at 12, 15, 18 and 21 L ha-1 at 40 and 55 days after sowing in wheat to control wild oats (Avena fatua), little seed canary grass (Phalaris minor), lamb’s quarters (Chenopodium album) and swine cress (Coronopus didymus). A synthetic herbicide Affinity 50 WP (Carfentrazone-ethyl 0.75% +...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Weed management; Allelopathy.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100299

Allelopathic effects of Eucalyptus citriodora on amaryllis and associated grassy weed
Provedor de dados: 87
Autores: El-Rokiek,K.G; Eid,R.A.
A Petri dish assay was carried out for screening different concentrations of aqueous extracts of fresh and dry leaves of Eucalyptus citriodora on germination and seedling growth of wild oat weed (Avena fatua). Seed germination, root and shoot length of wild oat exhibited different degrees of inhibition according to the concentration of the aqueous extract. Maximum inhibitions of germination percentage, root and shoot length were recorded when using 25% fresh leaf extract. Based on this preliminary work (Petri dish assay), studies were conducted under greenhouse conditions at the National Research Center, Egypt, in the two winter seasons of 2006/2007 and 2007/2008 to evaluate the effects of foliar and soil treatments of aqueous extracts of Eucalyptus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aqueous extract; Herbicide; Phytotoxic; Total phenols; Tralkoxydim.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582009000500002

Allelopathic effects of Ipomoea cairica (L.) Sweet on crop weeds
Provedor de dados: 39
Autores: Takao,Leandro Kenji; Ribeiro,Jose Pedro Nepomuceno; Lima,Maria Inês Salgueiro.
Identification of species with allelopathic potential has been a target of researches aiming to use them to control crop weeds. Ipomoea cairica is considered a weed with allelopathic potential, which has already been reported. The goal of this study was to evaluate the allelopathic properties of leaf extracts from Ipomoea cairica on the germination and early development of four of the worst crop weeds in Brazil: Bidens pilosa L., Echinochloa crus-galli (L.) Beauv., Euphorbia heterophylla L. and Ipomoea grandifolia (Dammer) O´Donel. We tested the effects of leaf extracts, in four concentrations, on the germination and early development of these species. The extracts negatively affected the germination, early development and the morphology of all target...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Bidens pilosa; Echinochloa crus-galli; Euphorbia heterophylla; Ipomoea grandifolia.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000400012

Allelopathic effects of orange (Citrus sinensis L.) peel essential oil
Provedor de dados: 39
Autores: Ribeiro,Jose Pedro Nepomuceno; Lima,Maria Inês Salgueiro.
Crop weeds are the main problem in agriculture, causing a worldwide annual loss of about US$95 billion. The principal method for control is the use of synthetic herbicides. The continued use of these products increases crop costs, reduces crop quality, and leaves toxic residues in the environment, which are a threat to human and livestock health. Therefore, there is a demand for environmentally friendly methods of weed control. The use of allelopathic compounds from crop residues is an alternative. Orange is one of the biggest crops in the world, and its cultivation generates large amounts of residues. There is strong evidence of bioactivity in orange peel essential oil. Therefore, the objective in this work was to verify the allelopathic proprieties of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Crop residues; Limonene; Organic agriculture; Weeds; Weed controly.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062012000100025

Allelopathic Effects of Sunflower Residue on Growth of Rice and Subsequent Wheat Crop
Provedor de dados: 117
Autores: Bashir,Uzma; Javaid,Arshad; Bajwa,Rukhsana.
Sunflower (Helianthus annuus L.) is a well known allelopathic plant species. However, Pakistani farmers generally incorporate the sunflower residue in the soil with the aim to enhance soil fertility and organic matter. Field experiments were, therefore, carried out to evaluate the effect of sunflower residue incorporation on growth and yield of rice (Oryza sativa L.) and subsequent wheat (Triticum aestivum L.) crop. For rice crop, there were four treatments viz. control, sunflower residue incorporation (RI), NPK fertilizers, and NPK+RI. Two rice varieties (Basmati Pak and Basmati Super) were cultivated. Incorporation of sunflower residue markedly reduced plant growth and yield in 'Basmati Pak'. There was 34% reduction in yield of this variety due to RI....
Tipo: Journal article
Palavras-chave: Allelopathy; Genotypic tolerance; Oryza sativa; Helianthus annuus; Triticum aestivum.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300004

ALLELOPATHIC INFLUENCE OF AQUATIC WEEDS ON AGRO-ECOSYSTEMS: A REVIEW
Provedor de dados: 87
Autores: ABBAS,T.; NADEEM,M.A.; TANVEER,A.; SYED,S.; ZOHAIB,A.; FAROOQ,N.; SHEHZAD,M.A.
ABSTRACT Aquatic weeds are higher plants found in the aquatic ecosystem and in anaerobic rice fields, where they have no economic benefits. The continuance of aquatic weeds is more widespread than terrestrial weeds because in aquatic ecosystems there is very little fluctuation in the environmental conditions compared with terrestrial ecosystems. Scientists have been working to address the harmful allelopathic effects of aquatic weeds on the aquatic ecosystem, but limited information is available on the allelopathic influence of aquatic weeds on agro-ecosystems through the release of phytotoxic compounds. Phytotoxic chemicals released by different aquatic weeds into irrigation water and/or directly into rice ecosystems might have a significant inhibitory...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Aquatic ecosystem; Ecosystem interactions; Herbicides resistance management; Organic weed control; Phenolics; Weed invasion.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100301

Allelopathic Influence of Residues from Sphagneticola trilobata on Weeds and Crops
Provedor de dados: 87
Autores: HERNÁNDEZ-ARO,M.; HERNÁNDEZ-PÉREZ,R.; GUILLÉN-SÁNCHEZ,D.; TORRES-GARCIA,S.
The allelopathic effect studied in many cultures has currently generated great expectations that displayed a natural and environmentally friendly tool for weed management using bioherbicides. The objective of this work was to assess allelopathic influence of residues of S. trilobata on the germination and growth of weeds, as well as their relation with some crops and effects on soil properties. Results show that residues from S. trilobata have inhibited the germination of weeds (31.6 - 72%), increasingly with the applied dose. All residue doses of this specie have inhibited dicotyledonous germination, but only maximum concentration has affected monocotyledons. The residues did not affect onion germination, but stimulated it in radish and tomato, while the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Residues; Azotobacter; Soil microflora.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000100081

Allelopathic Influence of Sorghum Aqueous Extracts and Sorghum Powder on Germination Indices and Seedling Vigor of Hybrid Corn and Jungle Rice
Provedor de dados: 87
Autores: YAR,S.; KHAN,E.A.; HUSSAIN,I.; RAZA,B.; ABBAS,M.S.; MUNAZZA,Z.
ABSTRACT: Allelopathy has become a paramount tool for controlling weeds in crop plants without deteriorating the environment. Allelopathic effects of sorghum aqueous extracts and sorghum powder on a single cross maize (Zea mays L.) hybrid “HC-8080” and a summer weed, jungle rice (Echinochloa colona L.) were assessed in the research laboratory of Agronomy, Faculty of Agriculture, Gomal University, Dera Ismail Khan, KPK, Pakistan. The treatments included: T1: control (untreated check), T2: sorghum aqueous extract at a rate of 5 mL kg-1 soil, T3: sorghum aqueous extract at a rate of 10 mL kg-1 soil, T4: sorghum aqueous extract at a rate of 15 mL kg-1 soil, T5: sorghum powder at a rate of 5 g kg-1 soil, T6: sorghum powder at a rate of 10 g kg-1 soil and T7:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sorghum allelopathy; Germination; Growth; Maize.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100205

Allelopathic potential of bark and leaves of Esenbeckia leiocarpa Engl. (Rutaceae)
Provedor de dados: 39
Autores: Souza,Flaviana Maluf; Gandolfi,Sergius; Perez,Sonia Cristina Juliano Gualtieri de Andrade; Rodrigues,Ricardo Ribeiro.
We investigated the inhibitory potential of aqueous extracts of bark and leaves of Esenbeckia leiocarpa Engl. on lettuce germination and early seedling growth. We compared the effects of four concentrations (100, 75, 50 and 25%) of each extract to water and polyethylene glycol (PEG 6000) solution controls for four replicates of 50 seeds for germination and four replicates of ten seedlings for seedling growth. The inhibitory effects of E. leiocarpa extracts on the percentage of germination and on the germination speed seemed to be more than simply an osmotic effect, except for the percentage of seeds germinated in bark extracts. When compared to water control, both bark and leaf extracts delayed germination, and leaf extracts also affected the percentage of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Germination; Growth; Inhibition; Plant-plant interaction.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000100016

Allelopathic potential of Cover Crops in Control of Shrubby False Buttonweed (Spermacoce verticillata)
Provedor de dados: 87
Autores: VARGAS,L.A.; PASSOS,A.M.A.; KARAM,D.
ABSTRACT: Searching for alternatives to deal with weeds without the exclusive use of herbicides can increase the sustainability of agricultural production in the Amazon region. This study aimed to evaluate the allelopathic potential of cover crops on the weed shrubby false buttonweed (Spermacoce verticillata L.). Three straw levels (1; 2.5 and 5 mg cm-2) of thirteen cover crops (Cajanus cajan, Canavalia ensiformis, Crotalaria juncea, C. ochroleuca, C. spectabilis, Mucuna aterrima, M. cinereum, Pennisetum glaucum, Sorghum bicolor, S. sudanense, Urochloa brizanha cv. Xaraés, U. brizantha cv. Piatã and U. ruziziensis) were assessed on germination and initial growth of weed and lettuce. We carried out two experiments (weed and lettuce) in a factorial scheme...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Crop control; Leguminous; Sandwich method; Straw.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100253

Allelopathic Potential of Ethanolic Extract and Phytochemical Analysis of Paspalum maritimum Trind
Provedor de dados: 87
Autores: PEREIRA,J.C.; PAULINO,C.L.A.; ENDRES,L.; SANTANA,A.E.G.; PEREIRA,F.R.S.; SOUZA,R.C.
ABSTRACT: Allelopathy is defined as the ability of certain plants and microorganisms to interfere with the metabolism of other species through substances released into the environment, being an alternative to control weeds and diseases. In this context, this study aimed to evaluate the allelopathic potential and identify groups of secondary metabolites of Paspalum maritimum Trind. The species Lactuca sativa, Digitaria insularis, Emilia coccinea, and Portulaca oleracea were used as recipient plants. The ethanolic extract was obtained from shoot and root of donor species to evaluate the allelopathic potential. Potentially allelopathic effects were evaluated by means of germination tests, germination speed index, and initial seedling growth. A phytochemical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Ginger grass; Secondary metabolites.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100251

Allelopathic potential of orsellinic acid derivatives
Provedor de dados: 52
Autores: Peres,Marize Terezinha Lopes Pereira; Mapeli,Ana Maria; Faccenda,Odival; Gomes,Alcir Teixeira; Honda,Neli Kika.
Environmental degradation caused by the excessive use of pesticides has motivated studies aimed at the discovery of new formulations for pest control. The bioassays carried out under laboratory conditions for the present study involved the germination and seedling growth of Lactuca sativa cv. Grand Rapids and Allium cepa cv. Baia Periforme treated with lecanoric acid or one of seven esters obtained from the alcoholysis of the acid. Each substance was tested at concentrations of 10-3, 10-5, 10-7 M, and 10-9 M. The results revealed that, except for lecanoric acid and methyl orsellinate, all other compounds exhibited significant differences in their action when compared with the controls. Also, A. cepa was more sensitive to the compounds assayed, at the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Germination; Growth; Lactuca sativa; Allium cepa; Orsellinates.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400027

Allelopathic potential of Sapindus saponaria L. leaves in the control of weeds - doi: 10.4025/actasciagron.v34i1.11598
Provedor de dados: 1
Autores: Grisi, Patricia Umeda; Universidade Federal de São Carlos; Ranal, Marli Aparecida; Universidade Federal de Uberlândia; Gualtieri, Sônia Cristina Juliano; Universidade Federal de São Carlos; Santana, Denise Garcia; Universidade Federal de Uberlândia.
The objective of this work was to evaluate the allelopathic potential of aqueous extracts of young and mature leaves from Sapindus saponaria on diaspore germination and seedling growth of barnyardgrass (Echinochloa crus-galli) and morningglory (Ipomoea grandifolia). The aqueous extract was prepared in a proportion of 100 g of dried, ground leaves dissolved in 1000 mL of distilled water, resulting in a 10% extract concentrate. Dilutions of this concentrate were made with distilled water to 7.5, 5.0 and 2.5%. In seedling growth tests, we compared the effect of these extracts with the herbicide nicosulfuron. Both extracts of mature and young leaves caused delays and reductions in diaspore germination and seedling length of barnyardgrass and morningglory, with...
Palavras-chave: Alelopatia; Echinochloa crus-galli; Ipomoea grandifolia; Sabão-de-soldado Fisiologia de Plantas Cultivadas 5.01.03.06-7 allelopathy; Echinochloa crus-galli; Ipomoea grandifolia; Soapberry Fisiologia de Plantas Cultivadas.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11598

Allelopathic research in Brazil
Provedor de dados: 39
Autores: Reigosa,Manuel; Gomes,Anabele Stefânia; Ferreira,Alfredo Gui; Borghetti,Fabian.
In this article, we review allelopathy studies conducted in Brazil or involving plant species that occur in the country. Conceptions and misconceptions associated with allelopathy, as well as some international criteria to be applied in allelopathic research, are presented and discussed. We observed a sharp increase in the number of papers on this subject conducted in Brazil between 1991 and 2010. However, most studies are conducted under laboratory conditions, lack a clear hypothesis or a solid justification, and typically make use of target species that do not co-exist with the donor species under natural conditions. We also found that most studies do not take the additional steps in order to purify and identify the bioactive molecules. We recommend that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Allelochemicals; Competition; Interference; Phytotoxicity; Weed control.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000400001

Allelopathy of aqueous leaf extracts from the invasive alien tree Pittosporum undulatum on germination and growth of barnyard grass
Provedor de dados: 190
Autores: Carpanezzi, Fernando Bertol; Gualtieri, Sonia Cristina Juliano.
Barnyard grass (Echinochloa crusgalli (L.) P. Beauv.) is a herbicide-resistant weed that brings negative impacts to rice crops and threatens floodplains biodiversity worldwide. This study aimed to investigate allelopathic influences of extracts from Pittosporum undulatum Vent. (cheesewood) leaves on barnyard grass. Leachates in concentrations of 20%, 15%, 10%, 5% and 2.5% (w/v), aqueous extracts from powdered leached and non-leached leaves (10%, 7,5%, 5%, 2.5% and 1.25% for both), coumarin solution at 0.6 mM and original Roundup ® in concentration according to the label information were prepared. Petri-dishes germination bioassays, with counting at each 12 hours, allowed to determinate both germinability and germination rate; polyethylene glycol (PEG 6000)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecology; Plant Ecophysiology Cheesewood tree; Echinochloa crusgalli; Agroecosystems; Floodplains Ecologia; Ecofisiologia Vegetal Pau-incenso; Echinochloa crusgalli; Agroecossistemas; Áreas alagáveis.
Ano: 2014
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/599

Allergy between the ears?
Provedor de dados: 26
Autores: Shepherd, R.
Estimates of the true prevalence of food allergies tend to be around 2-3% in adults, whereas the perceptions of food allergies by the public tend to be much higher. There are many potential reasons for these differences, including the tendency by the public to include all forms of intolerances and adverse food reactions rather than just true allergies. But even taking this into account, the prevalence of food intolerances is higher than that measured in controlled studies. While there has been relatively little work on how the public thinks about allergies, there has been more extensive work on perceptions of other risks. Here one of the reasons for differences between lay and expert estimates of risk lies in the public considering many other...
Tipo: Conference proceedings
Ano: 2005
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1072

ALLEVIATION OF SALINITY STRESS ON Vicia faba L. PLANTS VIA SEED PRIMING WITH MELATONIN
Provedor de dados: 37
Autores: DAWOOD,Mona Gergis; EL-AWADI,Mohamed E.
Melatonin is an environmentally friendly-molecule with a potent free radical scavenger and antioxidant capacity. Two pot experiments were conducted during two successive winter seasons (2011/2012 and 2012/2013) at the wire-house of the National Research Centre, Dokki, Cairo, Egypt to study the potentiality of melatonin (100 mM and 500 mM) in alleviating the harmful effect of diluted seawater at a relatively low and high concentrations (3.85 dS/m and 7.69 dS/m, respectively) on the performance of faba bean plants. The results revealed that irrigation of faba bean plants with diluted seawater reduced growth parameters (plant height, leaves number/plant, fresh and dry weights of plant), relative water content (RWC), photosynthetic pigments (chlorophylls a, b...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Indole acetic acid; Legumes; Minerals; N-acetyl-5-methoxytryptamine; Protein patterns; Seawater.
Ano: 2015
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000200022

ALLEVIATION OF SOIL SALINITY ON PHYSIOLOGICAL AND AGRONOMIC TRAITS OF RICE CULTIVARS USING Arbuscular mycorrhizal fungi AND Pseudomonas STRAINS UNDER FIELD CONDITIONS
Provedor de dados: 196
Autores: Norouzinia, Firouz; Ansari, Mohammad Hossein; Aminpanah, Hashem; Firozi, Saeed.
Rice cultivation in Iran has a special place and its cultivation area is about 640,000 ha. Soil salinization is one of the most factor in reducing of grain yields and cultivation of paddy rice. Currently, half of Iran's cultivated lands (9.5 million ha) are affected by salinity, which has a major impact on crop yields. For this purpose, an field experiment conducted with the use of microorganisms (Pseudomonas putida strain S34, Pseudomonas fluorescens strain R167, Arbuscular mycorrhizal fungi (AMF) (Rhizophagus irregularis), co-inoculation of P.putida + P.fluorescens + AMF, and a non-inoculated treatment as control) on two rice cultivars (Hashemi and Gilane) in saline and normal soil in north of Iran during the 2018 and 2019. The results showed...
Tipo: Info:eu-repo/semantics/article
Ano: 2020
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4042

Allium species poisoning in dogs and cats
Provedor de dados: 80
Autores: Salgado,BS; Monteiro,LN; Rocha,NS.
Dogs and cats are the animals that owners most frequently seek assistance for potential poisonings, and these species are frequently involved with toxicoses due to ingestion of poisonous food. Feeding human foodstuff to pets may prove itself dangerous for their health, similarly to what is observed in Allium species toxicosis. Allium species toxicosis is reported worldwide in several animal species, and the toxic principles present in them causes the transformation of hemoglobin into methemoglobin, consequently resulting in hemolytic anemia with Heinz body formation. The aim of this review is to analyze the clinicopathologic aspects and therapeutic approach of this serious toxicosis of dogs and cats in order to give knowledge to veterinarians about Allium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium spp.; Poisonous plants; Hemolytic anemia; Heinz bodies.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000100002

ALLOCATING BIOSECURITY RESOURCES IN SPACE AND TIME
Provedor de dados: 31
Autores: Cacho,   Oscar J.; Hester,   Susan M.
Invasive species can cause significant damage to natural environments, agricultural systems, human populations and the economy as a whole. Biological invasions are complex dynamic systems which are inherently uncertain and their control involves allocation of surveillance and treatment resources in space and time. A complicating factor is that there are at least two types of surveillance: active and passive. Active surveillance, undertaken by pest control agencies, has high sensitivity but generally low coverage because of its high cost. Passive surveillance, undertaken by the public, has low sensitivity and may have high coverage depending on human population density. Its effectiveness depends on the extent to which information campaigns succeed in...
Tipo: Conference Paper or Presentation
Palavras-chave: Search theory; Invasive species; Dispersal; Passive surveillance.; Environmental Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/100535

ALLOCATION OF AGRICULTURAL PRODUCTION CAPACITY AMONG COMMERCIAL MARKETS, FOOD AID, AND PRODUCTION CONTROL
Provedor de dados: 31
Autores: White,   Fred C.; Tweeten,   Luther G.; Pinstrup-Andersen,   Per.
Tipo: Journal Article
Palavras-chave: Production Economics.
Ano: 1974
URL: http://purl.umn.edu/29347

Allocation of Authority in Agricultural Production Contracts
Provedor de dados: 31
Autores: Cakir,   Metin; Balagtas,   Joseph Valdes; Wu,   Steven Y.
The objective of this paper is to develop a model that explains the involvement of first level handlers in farm level decisions. In particular, the research attempts to explain observed differences among levels of farmer's autonomy in production contracts of different agricultural commodities. We show that the trade off that a contractor faces for holding the decision rights for controlling production inputs varies for different production environments. In particular, the contractor prefers controlling inputs in production of commodities that have relatively uniform production environments, whereas it is more efficient to delegate the control to the producer for commodities that have diverse production environments.
Tipo: Conference Paper or Presentation
Palavras-chave: Agribusiness.
Ano: 2009
URL: http://purl.umn.edu/49577

Allosteric interactions between receptor site 3 and 4 of voltage-gated sodium channels: a novel perspective for the underlying mechanism of scorpion sting-induced pain
Provedor de dados: 80
Autores: Feng,Yi-Jun; Feng,Qi; Tao,Jie; Zhao,Rong; Ji,Yong-Hua.
AbstractBackground BmK I, a site-3-specific modulator of voltage-gated sodium channels (VGSCs), causes pain and hyperalgesia in rats, while BmK IT2, a site-4-specific modulator of VGSCs, suppresses pain-related responses. A stronger pain-related effect has been previously attributed to Buthus martensi Karsch (BmK) venom, which points out the joint pharmacological effect in the crude venom.Methods In order to detect the joint effect of BmK I and BmK IT2 on ND7-23 cells, the membrane current was measured by whole cell recording. BmK I and BmK IT2 were applied successively and jointly, and the synergistic modulations of VGSCs on ND7-23 cells were detected.Results Larger peak I Na and more negative half-activation voltage were elicited by joint application of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: BmK I; BmK IT2; Synergistic effect; Allosteric interactions.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100347

Almacenaje a bajas temperaturas de adultos de Catolaccus hunteri Crawford (Hymenoptera: Pteromalidae) y su efecto en parámetros biológicos
Provedor de dados: 32
Autores: Morales Koyoc, Deisy Noemí.
El almacenamiento a bajas temperaturas, de 0 a 15ºC, es un método que se usa para prolongar la vida útil de algunas especies de enemigos naturales que se usan en control biológico. En este trabajo se estudió el efecto de la combinación de temperaturas (5, 8, 10 y 25ºC) y periodos de almacenamiento (7, 14 y 21 d) sobre la supervivencia, fecundidad, depredación (alimentación sobre el huésped) y capacidad de vuelo de adultos del parasitoide Catolaccus hunteri Crawford (Hymenoptera: Pteromalidae).  Para la evaluación de estos parámetros, una vez que se concluyeron los periodos de almacenaje, los parasitoides se mantuvieron a 25ºC±1ºC, 65±5% H.R. y fotoperiodo 12:12 h L: O. En general todos los parámetros biológicos disminuyeron conforme se incrementó el...
Palavras-chave: Control biológico; Parasitoides; Catolaccus hunteri; Callosobruchus maculatus; Biological control; Parasitoids; Entomología y Acarología; Maestría.
Ano: 2014
URL: http://hdl.handle.net/10521/2303

Almacenaje de pupas y adultos del parasitoide Tamarixia triozae (Hyamenoptera: Eulophidae) a temperaturas bajas.
Provedor de dados: 32
Autores: Cerón González, Claudia.
Tamarixia triozae es un ectoparasitoide con alto potencial para su uso en programas de manejo integrado del psílido de la papa, Bactericera cockerelli. Aunque ya se produce comercialmente, no existe información de su almacenaje a bajas temperaturas, esta información puede tener importancia para optimizar la conservación de estos organismos. En el presente trabajo se evaluó la respuesta de pupas y adultos de T. triozae después de almacenarlos a 5, 8 y 10°C por 7, 14 y 21 días. Los resultados se compararon con aquellos obtenidos en testigos a 25°C y los mismos tiempos de almacenamiento. La supervivencia en adultos, después del periodo de almacenamiento, en todos los tratamientos fue superior a 95%. Aquellos almacenados a 5 y 8°C por 21 días presentaron los...
Palavras-chave: Psílido de la papa; Control biológico; Parasitoide; Almacenaje en frío; Potato psyllid; Biological control; Cold storage; Entomología y Acarología; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/1978

Almacenamiento en condiciones variables y programadas para control de la calidad y daños por frío en tres variedades de limón mexicano.
Provedor de dados: 32
Autores: Hernández Pérez, María Elena.
Se evaluaron tres variedades de limón mexicano obtenidas por variación genética natural y colecta de materiales con algunas características sobresalientes. Estas variedades se encuentran registradas ante El Catalogo Nacional de Variedades Vegetales con el nombre de: ´Colimex´ (planta con espinas, alto rendimiento), ´Colimón´ (frutos sin semilla) y Lise (árboles sin espinas), de las cuales se desconoce su requerimientos de frigoconservación, principalmente en cuanto a  sensibilidad a daños por frio y pérdidas de la calidad. Los objetivos fueron evaluar los cambios en la calidad externa e interna de frutos de las variedades, Colimex, Colimón y Lise, cosechados en dos diferentes épocas. Para esto se cosecharon frutos de la producción de 2012. Para los frutos...
Palavras-chave: Daños por Frío; Frigoconservación; Chilling Injury; Cold Storage; Fruticultura; Maestría.
Ano: 2014
URL: http://hdl.handle.net/10521/2304

Aloe gel viscoso® en el tratamiento de pacientes con úlcera duodenal y Helicobacter pylori positivo
Provedor de dados: 98
Autores: Quintero Díaz,Myrna; Behar Hasday,Rosa; García Lima,Clara Elsa; Pupo Olivero,Daymela; Hernández Domínguez,Maité; Díaz Elías,Javier; Pérez Suárez,Frank.
IINTRODUCCIÓN: Aloe vera L. (sin. A. barbadensis L.) (aloe o sábila) es una planta con vastas propiedades medicinales. Los estudios preclínicos demostraron la acción antiulcerosa, sin efectos tóxicos, de extractos acuosos de hoja fresca. No se encontró ningún ensayo clínico en la literatura similar al del presente estudio. OBJETIVO: comparar el efecto de la formulación Aloe gel viscoso® (Aloe) y amoxicilina administrados a pacientes ambulatorios con úlcera duodenal y Helicobacter pylori positivo, por la prueba de ureasa, sobre la evolución endoscópica de la úlcera y sobre el comportamiento del Helicobacter pylori frente a un grupo control. MÉTODOS: los 2 grupos de Aloe recibieron 2 dosis diferentes (1,5 o 3,0 mg/kg de peso corporal) durante 6 semanas y...
Tipo: Journal article
Palavras-chave: Aloe vera; Sábila; Amoxicilina; Úlcera duodenal; Helicobacter pylori.
Ano: 2009
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962009000400002

Alpacas and Ecosystems Management
Provedor de dados: 31
Autores: Charry,   Al A.; Kemp,   David R.; Lawrie,   J.W.
Alpacas are a species that present physiological, anatomical, morphological and behavioural distinctive characteristics compared to other species used in animal production. Empirical observation of a herd, grazing under time management controlled conditions, allowed to approximate some initial observations about the effect of alpacas in the management of ecosystems. Larger green matter availability in the paddocks grazed by alpacas, evident natural weed control, better plants distribution and increasing stocking capacity were the relevant observed issues. It is considered that the special behavioural characteristics of alpacas in terms of excretion habits, low hoof pressure, food conversion efficiency and grazing habits should be factors to be rigourously...
Tipo: Conference Paper or Presentation
Palavras-chave: Sustainable farm management; Farming systems research; Alpacas; Environmental Economics and Policy; Livestock Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/24365

Alpha band oscillations track temporal orienting of attention
Provedor de dados: 17
Autores: Gustavo Rohenkohl; Anna Christina Nobre.
Introduction: Recent investigations using field-potential recordings in visual and auditory cortices have shown that oscillatory activity in neuronal ensembles become entrained to the timing of rhythmically presented stimuli according to their modality and location (Lakatos, Chen et al. 2007; Lakatos, Karmos et al. 2008; Lakatos, O&amp;#x27;Connell et al. 2009). In spite of the evidence showing the role of brain oscillations on forming predictions about forthcoming sensory events (for a review (Engel, Fries et al. 2001), little is known about the role of such oscillations in the temporal orienting of attention (Nobre 2001; Coull and Nobre 2008). To test the effect of temporal orienting of attention on early perceptual processing, motor selection, and...
Tipo: Poster
Palavras-chave: Neuroscience.
Ano: 2010
URL: http://precedings.nature.com/documents/4509/version/1

alpha-Smooth muscle actin and proliferating cell nuclear antigen expression in focal segmental glomerulosclerosis: functional and structural parameters of renal disease progression
Provedor de dados: 56
Autores: Geleilete,T.J.M.; Costa,R.S.; Dantas,M.; Coimbra,T.M.
The aim of the present study was to investigate the expression of alpha-smooth muscle actin (alpha-SM-actin) and proliferating cell nuclear antigen (PCNA) in renal cortex from patients with focal segmental glomerulosclerosis (FSGS) and their correlations with parameters of renal disease progression. We analyzed renal biopsies from 41 patients with idiopathic FSGS and from 14 control individuals. The alpha-SM-actin immunoreaction was evaluated using a score that reflected the changes in the extent and intensity of staining in the glomerular or cortical area. The PCNA reaction was quantified by counting the labeled cells of the glomeruli or renal cortex. The results, reported as median ± percentile (25th; 75th), showed that the alpha-SM-actin scores in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alpha-smooth muscle actin; Proliferating cell nuclear antigen; PCNA; Focal segmental glomerulosclerosis; Proteinuria; Renal failure; Renal disease progression; Renal fibrosis.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000800003

Altas temperaturas estacionales del agua como condición disturbadora de las macroalgas del Parque Nacional Tairona, Caribe colombiano: una hipotesis
Provedor de dados: 20
Autores: Bula-Meyer, G.
Con base en observaciones de campo y en mediciones de los factores temperatura, salinidad, nutrientes, transparencia y movimiento del agua, se analizó cada uno de éstos con el fin de conocer el factor más importante en el control del crecimiento y productividad de las macroalgas del Parque Nacional Tairona en la costa Caribe de Colombia. Se hipotetiza que el factor clave que regula estos aspectos fisiológicos de las macroalgas del Parquees la temperatura. Su ascenso por encima de los 26°C, como resultado de la declinación del afloramiento y de otros fenómenos oceanográficos-meteorológicos, produce la disturbancia (remoción de biomasa) de las macroalgas que se observa anualmente en la estación húmeda mayor.
Tipo: Journal Contribution
Palavras-chave: Temperature; Salinity; Nutrients (mineral); Temperature; Salinity; Http://aims.fao.org/aos/agrovoc/c_7657; Http://aims.fao.org/aos/agrovoc/c_6751.
Ano: 1990
URL: http://hdl.handle.net/1834/3882

Alteraciones bioquímicas en individuos expuestos al arsénico en el agua de bebida en Tucumán, Argentina
Provedor de dados: 38
Autores: Soria de González,Analía; Guber,Rosa Silvina; Martínez,Mateo; Arias,Nilda; Tefaha,Liliana; Sandoval,Noemí; Fernández,Marta; Toledo,Roxana.
El objetivo de esta investigación fue evaluar los niveles del ácido siálico (S) y enzimas hepáticas en individuos que consumieron agua con arsénico (As) relacionándolos con la presencia ("I con H") o no de hepatomegalia ("I sin H"). Se incluyeron 200 individuos, 85 correspondieron al Grupo Control (GC), 32 "I con H" y 83 "I sin H" quienes habían consumido agua con niveles mayores a 0,01 mg/L. Se les tomó una muestra de sangre venosa y se les realizó el dosaje del S y de las enzimas alaninaninotransferasa (ALT), aspartatoaminotransferasa (AST), fosfatasa alcalina (FAL), gamma glutamil transferasa (GGT), bilirrubina directa (BD) y total (BT), lactato deshidrogenasa (LDH) y 5' nucleotidasa (5'Nu). En los individuos que consumieron agua contaminada se encontró...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arsénico; Agua; Ácido siálico; Enzimas hepáticas; Tucumán; Argentina.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572009000400006

Alteraciones de indicadores biológicos de   Gambusia puncticulata (Poey, 1854) en sitios muy contaminados del río Almendares
Provedor de dados: 20
Autores: Cabrera Páez, Y.
Se realizó una investigación con el objetivo de evaluar las alteraciones de los  procesos biológicos en los peces que viven en sitios muy contaminados. Se  aplicó una metodología basada en los efectos acumulativos de agentes  estresantes múltiples a nivel de individuo en la especie  Gambusia  puncticulata (Poey, 1854).   Este estudio se efectuó en tres sitios del río  Almendares: El Rodeo, considerado como  sitio de referencia, y dos sitios  altamente contaminados, el Bosque de La Habana y el Puente 23.  Se  encontró un incremento en el largo y el peso de las hembras, y en el factor  de condición para ambos sexos en los sitios más impactados.  Este resultado  se atribuye a la mayor disponibilidad de alimento debido a la eutrofización. El  índice...
Tipo: Theses and Dissertations
Palavras-chave: Fishes; Biological contamination; Eutrophication.
Ano: 2007
URL: http://hdl.handle.net/1834/5516

Alteraciones del desarrollo embrionario, poliaminas y estrés oxidativo inducidos por plaguicidas organofosforados en Rhinella Arenarum
Provedor de dados: 40
Autores: Lascano,Cecilia Inés; Sotomayor,Verónica; Ferrari,Ana; Venturino,Andrés.
Los plaguicidas organofosforados (OP) son masivamente aplicados en el Alto Valle de Río Negro y Neuquén, afectando al ecosistema. Utilizamos un modelo embrionario de anfibios (Rhinella arenarum) para estudiar mecanismos por los cuales OP como metilazinfos (MA) y clorpirifos (CP) podrían provocar teratogénesis. Los embriones fueron desarrollados en diferentes concentraciones de MA o CP hasta opérculo completo (OC), analizando: malformaciones, histología, glutatión reducido (GSH) y enzimas antioxidantes, poliaminas, actividad de ornitina-decarboxilasa (ODC) y proteínaquinasa- C (PKC). Ambos OP provocaron un incremento tiempo/concentración-dependiente de malformaciones, llegando a 100% de teratogénesis en estadios avanzados y a las mayores concentraciones,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Teratogénesis; Anfibios; Plaguicidas; Biomarcadores.
Ano: 2009
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-37432009000100002

Alteraciones Morfológicas del Bazo de Ratas (Rattus norvergicus), Tratadas con Trióxido de Arsénico
Provedor de dados: 77
Autores: Alfaro-Burgos,S.
En América Latina la presencia del arsénico en el ambiente y en las fuentes de agua para consumo humano, se debe a factores naturales de origen geológico como a actividades antropogénicas. El arsénico en las aguas naturales se encuentra principalmente como trivalente (arsenito) o pentavalente (arsenato). El objetivo de este trabajo fue determinar las alteraciones que provoca el trióxido de arsénico a nivel de la morfología del bazo de ratas (Rattus norvegicus - Sprague-Dawley). Se utilizaron 24 ratas de ambos sexos de 55 días de vida. Las ratas fueron pesadas y divididas en 3 grupos (4 hembras y 4 machos). Los grupos tratados fueron inyectados con 5 mg y 10 mg de As2O3 respectivamente, en dosis única diaria vía intraperitoneal por 15 días. Al grupo control...
Tipo: Journal article
Palavras-chave: Bazo; Trióxido de arsénico; Pulpa blanca; Pulpa roja; Rattus norvegicus.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300039

Alteraciones Morfológicas en Dientes Sometidos a Altas Temperaturas con Interés Forense
Provedor de dados: 77
Autores: Rubio,Leticia; Sioli,José Manuel; Santos,Ignacio; Fonseca,Gabriel M; Martin-de-las-Heras,Stella.
Los dientes son los elementos más resistentes del esqueleto humano y son utilizados en muchas ocasiones en la rutina de los laboratorios forenses. El objetivo de este estudio fue describir los cambios dentarios estructurales, morfológicos y del color que se producen tras la incineración, para ayudar en el manejo adecuado de las muestras en un escenario forense. Setenta dientes fueron expuestos a intervalos de temperatura de 100 °C a 1200 °C, durante 60 min. Un grupo control de 10 dientes no fue expuesto al choque térmico. Después de la incineración, los dientes fueron fotografiados y radiografiados para evaluar visualmente los cambios morfológicos. La medida del cambio de color fue realizada mediante un espectrofotómetro. Los resultados mostraron cambios...
Tipo: Journal article
Palavras-chave: Diente calcinado; Cambios color; Rayos-X; Morfología; Espectrofotometría.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200047

Alteraciones Morfológicas en el Tracto Respiratorio de Ratas Wistar Inducidas por Vapores de la Raíz de Hierba del Zorrillo (Petiveria alliacea) del Suroeste de México
Provedor de dados: 77
Autores: Fletes-Arjona,Víctor M; Soto-Domínguez,Adolfo; García-Garza,Rubén; Morán-Martínez,Javier; Benítez-Valle,Carlos; Castañeda-Martínez,Alfonso; Montalvo-González,Rubén; Becerra-Verdín,Eduardo M.
Petiveria alliacea, es conocida con diferentes nombres según el lugar donde se le encuentre. Estudios con hojas, tallo, raíz o extractos describen múltiples usos medicinales. Sin embargo, son pocos los que describen efectos tóxicos. En este estudio se evaluó el efecto morfológico de los vapores de la raíz de P. alliacea sobre el tracto respiratorio de ratas Wistar. Se emplearon 15 ratas divididas en 5 grupos (n=3): control absoluto, 0, 5, 15 y 30 minutos post-exposición (grupos I-V, respectivamente). Las ratas se sacrificaron y se colectaron muestras representativas del tracto respiratorio que posteriormente se procesaron por la técnica histológica convencional, hasta su inclusión en bloques de parafina. Los cortes histológicos se tiñeron con H-E,...
Tipo: Journal article
Palavras-chave: Petiveria alliacea; Alteraciones morfológicas; Tracto respiratorio.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000100019

Alterações anátomo-histopatológicas em ratos submetidos à dieta com extrato de broto de samambaia (Pteridium aquilinum var. arachnoideum) de dois municípios do estado do Paraná
Provedor de dados: 45
Autores: Cruz,G.D.; Bracarense,A.P.F.R.L.; Yamasaki,L.; Cortez,D.E.A.
The carcinogenicity of bracken fern harvest from two regions of Paraná State to induce hematury in rats was studied. In order to do that, 33 Wistar rats were divided in three groups. Groups I and II received an aqueous extract of bracken fern from Londrina-PR or Ibaiti-PR, respectively, in drinking water for 60 days. Group III, control group, received regular plain water with no bracken fern. After 15 months, euthanasia was performed in all animals and samples were collected for histology examination. Histologic analysis revealed that two animals of Group II had ileal adenocarcinoma and soft tissue fibroma of leg.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rato; Samambaia; Pteridium aquilinum; Neoplasia.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000300022

Alterações da porosidade e da densidade de um Latossolo Vermelho Distrófico em dois sistemas de manejo de solo
Provedor de dados: 1
Autores: Thimóteo, Catarina Maria de Souza; UEL; Beninni, Elisabete Rumiko Yonamini; UEL; Murata, Ives Massanori; UEL; Tavares Filho, João; UEL.
Este trabalho teve como objetivo avaliar alterações na porosidade e densidade do solo em Latossolo Vermelho Distrófico, sob dois sistemas de manejo do solo: plantio direto e preparo convencional. As amostras foram coletadas aleatoriamente em duas profundidades (0 – 0,10 e 0,10 – 0,20 m), e uma área de mata foi considerada como testemunha. O experimento foi conduzido durante o período de 1997 a 2000, na Fazenda Primavera, localizada no município de Paraguaçu Paulista, Estado de São Paulo. O delineamento estatístico utilizado foi em parcelas subdivididas, com 3 parcelas (plantio direto, convencional e mata), 2 subparcelas (0 – 0,10 e 0,10 – 0,20 m de profundidade) e 4 repetições. Na análise dos resultados, verificou-se que o sistema de plantio direto...
Palavras-chave: 5.00.00.00-4 Ciências Agrárias porosidade; Densidade do solo; Plantio direto 5.00.00.00-4 Ciências Agrárias.
Ano: 2001
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2626

Alterações em atributos químicos do solo pela aplicação de calcário na superfície ou incorporado - DOI: 10.4025/actasciagron.v30i2.1738
Provedor de dados: 1
Autores: Freiria, André Costa; UNESP; Mantovani, José Ricardo; Universidade José do Rosario vellano; Ferreira, Manoel Evaristo; UNESP; Cruz, Mara Cristina Pessôa da; UNESP; Yagi, Renato; UNESP.
A aplicação de calcário, na superfície do solo, é necessária em algumas situações agrícolas. O objetivo desse trabalho foi verificar alterações em atributos químicos de um solo de textura média, em razão da aplicação de calcário na superfície ou incorporado. O experimento foi conduzido em condições de laboratório, em colunas de PVC, delineamento inteiramente ao acaso, em esquema fatorial 2 x 4 e uma testemunha, com quatro repetições. Os tratamentos consistiram na combinação de duas doses de calcário (4 e 2 t ha-1) e 4 formas de aplicação do corretivo (aplicado na superfície, sem incorporação, e calcário incorporado nas profundidades de 0 a 5; 0 a 10 e 0 a 20 cm), além da testemunha em que não foi feita a calagem. Após 326 dias de incubação do solo com o...
Palavras-chave: 5.01.01.00-5    Ciência do Solo calagem; Acidez do solo; PH; Saturação por bases; Cálcio; Magnésio 5.01.01.00-5    Ciência do Solo liming; Soil acidity; PH; Base saturation; Calcium; Magnesium.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1738

Alterações na cutícula de maçãs ‘Fuji’ e ‘Gala’ em função do tratamento térmico e da armazenagem refrigerada - doi: 10.4025/actasciagron.v32i3.4712
Provedor de dados: 1
Autores: Montero, Cândida Raquel Scherrer; Universidade Federal do Rio Grande do Sul; Antes, Rose Beatriz; UFRGS; Santos, Rinaldo Pires dos; UFRGS; Santos, Liege Cunha dos; UFRGS; Andreazza, Cristiane Salete; UFRGS; Bender, Renar João; UFRGS.
As doenças de pós-colheita são fatores limitantes para estocagem de produtos colhidos. É crescente o interesse por métodos alternativos para o controle de podridão em pós-colheita. A termoterapia pré-estocagem parece ser um método promissor podendo ser aliado a outros métodos alternativos. O objetivo deste trabalho foi verificar os efeitos do tratamento térmico por aspersão e imersão na cutícula de maçãs (Malus domestica Borkh.) Fuji e Gala após tratamento e período curto de armazenagem. Foram realizados seis tratamentos, com três repetições de três frutos: testemunha, imersão em água quente a 58&amp;deg;C-30 s, 1 e 2 min., aspersão em água quente a 58&amp;deg;C-30 s; imersão em clorofórmio 30 segundos. Foram retiradas amostras para visualização em...
Palavras-chave: 5.07.01.04-5 Termoterapia; Epicarpo; Malus domestica Fisiologia Pós-Colheita Thermotherapy; Epicarp; Malus domestica.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4712

Alterações nas propriedades físicas e químicas de um Latossolo Vermelho distrófico por diferentes manejos na entrelinha da cultura da pupunha (Bactris gasipaes Kunth) - DOI: 10.4025/actasciagron.v27i4.1343
Provedor de dados: 1
Autores: Trintinalio, Juliano; UEM; Tormena, Cássio Antonio; UEM; Oliveira Júnior, Rubem Silvério de; UEM; Machado, Jorge Luiz; UEM; Constantin, Jamil; UEM.
Estudos de manejo do solo na entrelinha da cultura da pupunha ainda são escassos no Brasil. O objetivo deste trabalho foi avaliar os efeitos de diferentes manejos nas entrelinhas da cultura da pupunha em algumas propriedades físicas e químicas de um Latossolo Vermelho distrófico. Os tratamentos utilizados foram os seguintes: controle de plantas daninhas com herbicidas (HB), cobertura morta do solo com bagaço de cana (BC), cultivo alternado de mucuna e de aveia nas entrelinhas da cultura (MA), controle das plantas daninhas com capina manual (CM), controle das plantas daninhas por meio de roçada mecânica (RM) e cultivo de plantas de guandu nas entrelinhas (GD). Foram avaliadas as seguintes propriedades físicas do solo: densidade, porosidade, umidade e...
Palavras-chave: 5.01.01.02-1    Física do Solo manejo do solo; Resistência do solo à penetração; Fertilidade do solo; Densidade do solo 5.01.01.02-1    Física do Solo.
Ano: 2005
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1343

Alterações nas propriedades químicas de um Latossolo Vermelho eutroférrico por dois sistemas de manejo de solo - DOI: 10.4025/actasciagron.v26i4.1710
Provedor de dados: 1
Autores: Cavalieri, Karina Maria Vieira; UEM; Tormena, Cássio Antonio; UEM; Fidalski, Jonez; UEm; Pintro, José Carlos; UEm; Costa, Antonio Carlos Saraiva da; UEM; Souza Junior, Ivan Granemann de; UEM.
A utilização de sistemas intensivos de preparo do solo pode provocar a degradação da qualidade do solo. O sistema de plantio direto tem apresentado resultados positivos no controle da erosão e na melhoria da fertilidade do solo. A escarificação periódica do solo para o controle da compactação superficial no plantio direto tem sido freqüentemente utilizada em situações de manejo em solos de textura argilosa a muito argilosa. O objetivo do presente estudo foi avaliar algumas propriedades químicas de um Latossolo Vermelho eutroférrico, sob dois sistemas de manejo, implantados há 10 anos: plantio direto com rotação de culturas (PD) e plantio direto com sucessão de culturas associado com revolvimento do solo por meio de escarificação antes da cultura de verão e...
Palavras-chave: 5.00.00.00-4    Ciências Agrárias plantio direto; Rotação de culturas; Fertilidade do solo; Capacidade de troca de cátions; Carbono orgânico do solo 5.00.00.00-4    Ciências Agrárias.
Ano: 2004
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1710

Alteration of the Reproductive Patterns in Drosophila melanogaster by Effects of High Concentrations of Boron on In Vitro Cultured Medium
Provedor de dados: 77
Autores: Espinoza-Navarro,O; Rodríguez,H; Rodríguez,M; Silva,E; Luque,A.
The objective of this study was to evaluate the effects of boron (B) using as a biological model Drosophila malanogaster. Analizing specifically the responses over descendency to doses of 6,0 and 12 mg/L, comparing a control group which culture medium was prepared with water with boron concentrations of 0,6 mg/L, according to World Health Organization. The results show a significative alteration in the number of descendency from F1 to F3 and then a tendency to normalization in F4 and F5. Also a significant change in proportions between the males and females, with an acute effect on F1 and then a possible chronic effect from F2 to F5, increasing the proportion of females over males. This differences between genders are significant only until F4, on F5 these...
Tipo: Journal article
Palavras-chave: Reproduction; Boron; Reproductive toxicology; Drosophila melanogaster.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300021

Alterations in fatty acid composition due to cold exposure at the vegetative stage in rice
Provedor de dados: 61
Autores: Cruz,Renata Pereira da; Golombieski,Jaqueline Ineu; Bazana,Maiara Taís; Cabreira,Caroline; Silveira,Taíse Foletto; Silva,Leila Picolli da.
Rice is a tropical plant, so cold temperature may be detrimental to its development, depending on the genotype and environmental conditions. Degree of lipid unsaturation has been related to cold tolerance due to its effect on membrane stability. So, the aim of this study was to characterize the fatty acid composition and its alterations due to cold temperature in rice genotypes of diversified origin. Forty-four rice genotypes at the V4 stage were submitted to two temperature conditions: 10°C and 28°C for two days and after this they had their leaves collected for lipid extraction and quantification. Control plants were allowed to regrow until presenting four leaves fully expanded and then were subjected to 10°C for ten days for cold tolerance evaluation....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa L.; Lipid; Linolenic acid; Cold tolerance; Membrane stability; Plant survival.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000300007

Alterations in proteins of bone marrow extracellular matrix in undernourished mice
Provedor de dados: 56
Autores: Vituri,C.L.; Alvarez-Silva,M.; Trentin,A.G.; Borelli,P.
The objective of the present study was to determine the effect of protein malnutrition on the glycoprotein content of bone marrow extracellular matrix (ECM). Two-month-old male Swiss mice were submitted to protein malnutrition with a low-protein diet containing 4% casein as compared to 20% casein in the control diet. When the experimental group had attained a 20% loss of their original body weight, we extracted the ECM proteins from bone marrow with PBS buffer, and analyzed ECM samples by SDS-PAGE (7.5%) and ECL Western blotting. Quantitative differences were observed between control and experimental groups. Bone marrow ECM from undernourished mice had greater amounts of extractable fibronectin (1.6-fold increase) and laminin (4.8-fold increase) when...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fibronectin; Bone marrow; Extracellular matrix; Malnutrition.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000800004

Alterations of the Giant Pyramidal Neurons (Betz Cells) in Brain Cortex of Rat Offspring Born from Gestational Diabetic Dams: A Morphometric Study
Provedor de dados: 77
Autores: Ghafari,Soraya; Golalipour,Elnaz; Golalipour,Mohammad Jafar.
A few studies reported the adverse effects of gestational diabetes on hippocampus and spinal cord of rat offspring. Giant pyramidal neurons are giant pyramidal neurons located in fifth layers of the gray matter in the primary motor cortex. Therefore, this study was conducted to determine the effect of gestational diabetes on the giant pyramidal neurons and the thickness of internal pyramidal layer in the brain cortex of rat offspring. On day 1 of gestation, 10 Wistar rat dams were randomly allocated into two control and diabetic groups. Five animals in diabetic group received 40 mg/kg/BW of Streptozotocin (intraperitoneally) and control animals received normal saline. We randomly selected six offspring of every subject in both groups at day 28, 56 and 84....
Tipo: Journal article
Palavras-chave: Gestational diabetes; Neuron; Giant pyramidal neurons; Cerebral cortex; Rat offspring.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000300049

Altered calcium currents in cultured sensory neurons of normal and trisomy 16 mouse fetuses, an animal model for human trisomy 21 (Down Syndrome)
Provedor de dados: 48
Autores: CAVIEDES,PABLO; CAVIEDES,RAÚL; RAPOPORT,STANLEY I.
Down syndrome is determined by the presence of an extra copy of autosome 21 and is expressed by multiple abnormalities, with mental retardation being the most striking feature. The condition results in altered electrical membrane properties of fetal dorsal root ganglia (DRG) neurons, as in the trisomy 16 fetal mouse, an animal model of the human condition. Cultured trisomic DRG neurons from human and mouse fetuses present faster rates of depolarization and repolarization in the action potential compared to normal controls and a shorter spike duration. Also, trisomy 16 brain and spinal cord tissue exhibit reduced acetylcholine secretion. Therefore, we decided to study Ca2+ currents in cultured DRG neurons from trisomy 16 and age-matched control mice, using...
Tipo: Journal article
Palavras-chave: Trisomy 16; Dorsal root ganglion; Calcium current; Tissue culture; Patch clamp; Down syndrome.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000300009

Altered dopamine levels induced by the parasite Profilicollis antarcticus on its intermediate host, the crab Hemigrapsus crenulatus
Provedor de dados: 48
Autores: ROJAS,JOSÉ MIGUEL; OJEDA,F. PATRICIO.
A serotonergic pathway is apparently involved in parasite-host interactions. Previous studies conducted in our laboratory showed increased rates in oxygen consumption and alterations in body posture in the crab Hemigrapsus crenulatus parasitized by the acanthocephalan, Profilicollis antarcticus. Such changes may be related to the functions described for biogenic amines in crustaceans. During the infective stage the acanthocephalans live freely in the hemocelomic cavity, suggesting that the possible alteration induced by biogenic amines may be related to their neurohormonal function in crustaceans. To test whether the presence of P. antarcticus produced neurohormonal changes in its intermediate host, H. crenulatus, we analyzed serotonin and dopamine levels...
Tipo: Journal article
Palavras-chave: Acanthocephalans; Biogenic amines; HPLC; Parasite-host interaction; Parasite transmission.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602005000200015

Altered hyaluronic acid content in tear fluid of patients with adenoviral conjunctivitis
Provedor de dados: 42
Autores: DREYFUSS,JULIANA L.; REGATIERI,CAIO V.; COELHO,BRUNO; BARBOSA,JOSÉ B.; FREITAS,DENISE DE; NADER,HELENA B.; MARTINS,JOÃO R.
The adenoviral conjunctivitis is one of the biggest causes of conjunctival infection in the world. Conjunctivitis causes relatively nonspecific symptoms, as hyperaemia and chemosis. Even after biomicroscopy, complex laboratory tests, such as viral culture, are necessary to identify the pathogen or its etiology. To contribute to the better understanding of the pathobiology of the adenoviral conjunctivitis, the tear fluids of patients with unilateral acute adenovirus conjunctivitis (UAAC), normal donors (control) and patients with allergic conjunctivitis were analyzed. Tear samples were collected with Schirmer strips from control, allergic conjunctivitis and UAAC patients, diagnosed by clinical signs. UAAC tears were tested positive in viral cultures. After...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conjunctivitis; Glycosaminoglycans; Hyaluronic acid; Tear film.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100455

Altered Kidney Morphology and Enzymes in Streptozotocin Induced Diabetic Rats
Provedor de dados: 77
Autores: Zafar,Muhammad; Naeem-ul-Hassan Naqvi,Syed; Ahmed,Masood; Kaimkhani,Zahid Ali.
We studied the effects of streptozotocin (STZ)-induced diabetes on kidney morphology, anatomy, architecture and on the activities of aminotransferases (AST and ALT), alkaline phosphatase (ALP) and pseudocholinesterase (PChE) in albino rats. The aim of the study was to investigate the association between diabetic kidney complications and kidney enzyme alterations. This study was performed in the Department of Anatomy and Institute of Pharmaceutical Sciences, Baqai Medical University, Karachi and Pathology department of College of Physicians &amp;amp; Surgeons (CPSP) Pakistan in 2007-08. Diabetes was induced by a single dose of STZ (45 mg/kg, b.w.) given intraperitoneally in sodium citrate buffer at pH 4.5. Eighty (80) albino rats were divided into five...
Tipo: Journal article
Palavras-chave: Streptozotocin; Aminotransferases; Alkaline phosphatase; Pseudocholinesterase; STZ-diabetes; Rats.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300024

Altered Liver Morphology and Enzymes in Streptozotocin Induced Diabetic Rats
Provedor de dados: 77
Autores: Zafar,Muhammad; Naeem-ul-Hassan Naqvi,Syed; Ahmed,Masood; Kaimkhani,Zahid Ali.
This study was undertaken to evaluate the relationship and effects of diabetes on liver morphology, architecture and function. The hepatic effects of diabetes were evaluated in vivo using streptozotocin (STZ)-induced diabetic rats as an experimental model. The degree of hepatic dysfunction was measured by using biochemical parameters like serum transaminases (ALT and AST), alkaline phosphatase (ALP)and pseudocholinesterase (PChE) while the histopathological studies were carried out to support the enzymic Parameters. The aim of the study was to investigate the association between diabetic hepatic complications and liver enzyme alterations. This study was performed in the Department of Anatomy; Institute of Pharmaceutical Sciences and Institute of...
Tipo: Journal article
Palavras-chave: Streptozotocin; Aminotransferases; Alkaline phosphatase; Pseudocholinesterase; STZ-diabetes; Hepatic injury.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300015

Altered Testicular Morphology and Oxidative Stress Induced by Cadmium in Experimental Rats and Protective Effect of Simultaneous Green Tea Extract
Provedor de dados: 77
Autores: El-Shahat,Abd El-Rahman; Gabr,Attia; Meki,Abdel-Raheim; Mehana,El-Saed.
Cadmium (Cd), is an environmental and industrial pollutant that affects the male reproductive system. Cd induces its effect by affecting tissue antioxidant enzyme systems. Green tea extract (GTE) is an antioxidant and free radicals scavenger and has a chelating property. The purpose of this study was to investigate the protective effect of GTE against testes damage induced by Cd. Four groups of male rats, were utilized as following: Controls, GTE treated, Cd treated and Cd + GTE, treated rats at the same doses. The rats received GTE and or Cd orally in drinking water. After 5 weeks, the animals were sacrificed and testes were removed for microscopic and Biochemical evaluation. The levels of lipid peroxides (LPO) and glutathione (GSH) were detected in the...
Tipo: Journal article
Palavras-chave: Rat Testes; Cadmium toxicity; Green tea extract; Lipid peroxides; Glutathione.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300020

Alteridad, raz??n jur??dica y ??tica : reflexiones acerca de lo com??n y lo especial en la educaci??n
Provedor de dados: 122
Autores: P??rez, Andrea Ver??nica.
La Tesis se propuso plantear una reflexi??n cr??tica en el campo de la educaci??n teniendo en cuenta las tensiones generadas entre dos instancias de la vida humana: por un lado, los imperativos normativos propios del campo  jur??dico que aluden a una ??tica del ???deber ser???, y que, como tal, contribuyen  a generar ciertas certezas, cierto control y cierta previsi??n en un mundo eminentemente complejo e incierto; por otro lado, la alteridad, la contingencia y la imprevisibilidad de la experiencia humana, del ser en situaci??n. M??s espec??ficamente, el estudio se propuso problematizar ciertos  par??metros normatizados y naturalizados hist??ricamente, la ???normalidad??? dentro del sistema educativo argentino. El recorte emp??rico est?? conformado por el...
Tipo: Tesis
Palavras-chave: ALTERIDAD; ??TICA; SISTEMA EDUCATIVO; EDUCACI??N B??SICA; EDUCACI??N ESPECIAL; PERSONAS CON CAPACIDADES DIFERENTES; DERECHOS HUMANOS; DISE??O DEL CURRICULUM; ARGENTINA; BUENOS AIRES [PROVINCIA].
Ano: 2013
URL: http://hdl.handle.net/10469/5593

Alternagin-C, a disintegrin-like protein from the venom of Bothrops alternatus, modulates alpha2ß1 integrin-mediated cell adhesion, migration and proliferation
Provedor de dados: 56
Autores: Selistre-de-Araujo,H.S.; Cominetti,M.R.; Terruggi,C.H.B.; Mariano-Oliveira,A.; De Freitas,M.S.; Crepin,M.; Figueiredo,C.C.; Morandi,V.
The alpha2ß1 integrin is a major collagen receptor that plays an essential role in the adhesion of normal and tumor cells to the extracellular matrix. Alternagin-C (ALT-C), a disintegrin-like protein purified from the venom of the Brazilian snake Bothrops alternatus, competitively interacts with the alpha2ß1 integrin, thereby inhibiting collagen binding. When immobilized in plate wells, ALT-C supports the adhesion of fibroblasts as well as of human vein endothelial cells (HUVEC) and does not detach cells previously bound to collagen I. ALT-C is a strong inducer of HUVEC proliferation in vitro. Gene expression analysis was done using an Affimetrix HU-95A probe array with probe sets of ~10,000 human genes. In human fibroblasts growing on collagen-coated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alpha2ß1 integrin; Disintegrin; Snake venom; Adhesion; Gene expression; Extracellular matrix.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005001000007

Alternagin-C binding to α2β1 integrin controls matrix metalloprotease-9 and matrix metalloprotease-2 in breast tumor cells and endothelial cells
Provedor de dados: 80
Autores: Moritz,Milene Nóbrega de Oliveira; Eustáquio,Lívia Mara Santos; Micocci,Kelli Cristina; Nunes,Ana Carolina Caetano; Santos,Patty Karina dos; Vieira,Tamires de Castro; Selistre-de-Araujo,Heloísa Sobreiro.
Abstract  Background Matrix metalloproteinases (MMPs) are key players in tumor progression, helping tumor cells to modify their microenvironment, which allows cell migration to secondary sites. The role of integrins, adhesion receptors that connect cells to the extracellular matrix, in MMP expression and activity has been previously suggested. However, the mechanisms by which integrins control MMP expression are not completely understood. Particularly, the role of α2β1 integrin, one of the major collagen I receptors, in MMP activity and expression has not been studied. Alternagin-C (ALT-C), a glutamate-cysteine-aspartate-disintegrin from Bothrops alternatus venom, has high affinity for an α2β1 integrin. Herein, we used ALT-C as a α2β1 integrin ligand to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ALT-C; Α2β1; Integrin; Cancer; Tumor microenvironment; MMP; C-Myc.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100307

Alternating grazing to control parasites in young cattle (Video)
Provedor de dados: 21
Autores: Alföldi, Thomas.
Within the CORE Organic project MIX-ENABLE, Steffen Werne (FiBL) and his team are testing more sustainable ways of controlling gastrointestinal nematodes in ruminants. Farmers usually control parasites by using dewormers. However, resistance against these products is increasing. One approach is mixed grazing of different livestock species.  It is well known that sheep and goats can benefit from mixed grazing with cattle in terms of animal health and performance. This is because gastrointestinal parasites are usually specialized in one livestock species, and mixed grazing has thus a “diluting” effect.  Conversely, little is known whether young cattle can also benefit from mixed grazing with sheep.  This is what Steffen Werne and his teams want to find out...
Tipo: Video
Palavras-chave: Dairy cattle; Beef cattle; Sheep and goats; Health and welfare.
Ano: 2018

Alternating Influence of Northern Versus Southern-Sourced Water Masses on the Equatorial Pacific Subthermocline During the Past 240 ka
Provedor de dados: 5
Autores: Rippert, Nadine; Max, Lars; Mackensen, Andreas; Cacho, Isabel; Povea, Patricia; Tiedemann, Ralf.
The eastern equatorial Pacific (EEP) is a key area to understand past oceanic processes that control atmospheric CO2 concentrations. Many studies argue for higher nutrient concentrations by enhanced nutrient transfer via Southern Ocean Intermediate Water (SOIW) to the low-latitude Pacific during glacials. Recent studies, however, argue against SOIW as the primary nutrient source, at least during early Marine Isotope Stage 2 (MIS 2), as proxy data indicate that nutrients are better utilized in the Southern Ocean under glacial conditions. New results from the subarctic Pacific suggest that enhanced convection of nutrient-rich Glacial North Pacific Intermediate Water (GNPIW) contributes to changes in nutrient concentrations in equatorial subthermocline water...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00497/60825/64592.pdf

Alternativa para el manejo de Phytophthora infestans (Mont.) de Bary en Solanum betaceum Cav. mediante inductores de resistencia
Provedor de dados: 100
Autores: Castaño Monsalve,Julián; Ramírez Gil,Joaquín Guillermo; Patiño Hoyos,Luis Fernando; Morales Osorio,Juan Gonzalo.
El tomate de árbol (Solanum betaceum Cav) es una fruta andina con amplias perspectivas de desarrollo comercial e industrial debido al potencial de consumo que tiene, tanto en fresco como en fruta procesada. Para buscar la sostenibilidad del cultivo se deben enfrentar retos tecnológicos, entre los que sobresale el manejo de plagas, el cual depende, casi exclusivamente, del uso de fungicidas e insecticidas para su control. En las dos últimas décadas apareció, y se ha incrementado notablemente, la enfermedad conocida como gota o peste negra, la cual ha ocasionado grandes pérdidas económicas en muchas zonas productoras. El agente causal se ha identificado como Phytophthora infestans sensu lato. Dada la importancia de esta enfermedad y la adaptabilidad del...
Tipo: Journal article
Palavras-chave: Phytophthora infestans sensu lato; Resistencia inducida; Tomate de árbol.
Ano: 2015
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522015000300006

Alternativas de control para el manejo de Cladocolea loniceroides (Van Tiegh) Kuijt y Struthanthus interruptus (Kunth) Blume presentes en la zona urbana del Distrito Federal, México.
Provedor de dados: 32
Autores: Cárdenas Solís, Victoria.
En las ciudades, las áreas verdes urbanas representan sistemas ambientales que juegan un papel importante para los citadinos, desempeñando una doble función, por un lado contribuyen al aspecto social, siendo espacios públicos de recreación, ocio y democratizadores, además de ser un importante factor en el ámbito ecológico ya que funcionan como “pulmones” para las ciudades. La calidad de vida de los citadinos esta sustentada en gran parte en sus áreas verdes urbanas, donde los árboles son elementos que aportan múltiples beneficios, desgraciadamente el número de árboles se ha disminuido por diversos factores bióticos y abióticos que pueden alterar la salud de estos espacios, un ejemplo de ello son los muérdagos, que son plantas parasitas o hemiparásitas que...
Palavras-chave: Bosques urbanos; Manejo y control; Cladoclea loniceroides; Struthanthus interruptus; Urban forests; Management and control; Fitopatología; Maestría.
Ano: 2014
URL: http://hdl.handle.net/10521/2368

Alternativas de controle químico de plantas daninhas na cultura do milho.
Provedor de dados: 14
Autores: KARAM, D.; PEREIRA FILHO, I. A.
bitstream/item/30882/1/ct-22.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Planta daninha; Maize; Weed.; Controle Químico; Milho; Zea Mays.; Chemical control.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/484453

Alternativas limpas para controle da podridão pós-colheita causada por Colletotrichum em banana.
Provedor de dados: 14
Autores: OLIVEIRA, E. S. de; VIANA, F. M. P.; MARTINS, M. V. V.; PESSOA, M. N. G.
bitstream/item/103333/1/BPD13012.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Controle natural; Natural control.; Musa sp; Antracnose; Controle Biológico.; Anthracnose; Biological control.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/982056

Alternativas para o controle da Antracnose do açaí-solteiro.
Provedor de dados: 14
Autores: NOGUEIRA, S. R.; ANDRADE NETO, R. de C.; LUNZ, A. M. P.; COSTA, K. K. da.
A antracnose, causada por Colletotrichum gloesporioides, induz severos danos às folhas de açaizeiro (Euterpe precatoria), levando à morte de plantas, principalmente nas condições de viveiro. A doença é limitante para a produção de mudas de açaí-solteiro e consequentemente para expansão do seu cultivo. Os estudos com essa espécie ainda estão no início, sendo necessária a adoção de um conjunto de medidas para o controle eficiente da antracnose.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Açaí solteiro; Cultivos de viveros; Enfermedades y desórdenes de las plantas; Enfermedades fungales de las plantas; Antracnosis; Control biológico; Control químico; Control cultural; Açaí; Viveiro; Doença de Planta; Doença Fúngica; Antracnose; Colletotrichum Gloeosporioides; Controle Biológico; Controle Químico; Controle Genético; Controle Cultural; Euterpe precatoria; Nursery crops; Plant diseases and disorders; Fungal diseases of plants; Anthracnose; Glomerella cingulata f. sp. aeschynomene; Biological control; Chemical control; Cultural control; Genetic resistance.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1091660

ALTERNATIVAS para o controle do percevejo, vetor do protozoário causador da "Marchitez sorpresiva" em dendezeiros.
Provedor de dados: 14
bitstream/item/38441/1/AlternativasControlePercevejo.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Marchitez sorpresiva; Plant diseases.; Dendê; Controle Cultural; Controle Químico; Doença de Planta; Elaeis Guineensis.; Cultural control.; Chemical control.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/377491

Alternativas para o cultivo do algodoeiro herbáceo em plantio direto no Cerrado.
Provedor de dados: 14
Autores: CORRÊA, J. C.; AGUIAR, J. L. P.
RESUMO: O experimento , instalado em um Latossolo Vermelho-Amarelo muito argiloso, teve o objetivo de obter melhor alternativa para o cultivo do algodoeiro herbáceo (Gossypium hirsutum L. r. latifolium Hutch) em plantio direto em condições de sequeiro no Cerrado. O delineamento experimental foi o de blocos casualizados com quinze tratamentos e quatro repetições. Os tratamentos foram os seguintes: soja-milheto-soja-milheto-algodoeiro (T1); soja-amaranto-soja-nabo-forrageiro-algodoeiro (T2); soja-sorgo granífero-soja-sorgo granífero-algodoeiro (T3); soja-aveia-preta-algodoeiro (T4); feijão-milheto-feijão-milheto-algodoeiro (T5); feijão-amaranto-feijão-nabo-forrageiro-algodoeiro (T6); feijão-sorgo-granífero-feijão-sorgo-granífero-algodoeiro (T7);...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Planta daninha; Biomassa aérea; Zero tillage; Cover plants; Aerial biomass.; Algodão Herbáceo; Cerrado; Gossypium Hirsutum; Planta de Cobertura; Plantio Direto.; Cotton; Weeds.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568990

Alternativas para obtener alimentos más eficientes en el engorde semintensivo del camarón blanco (Litopenaeus Schmitti)
Provedor de dados: 20
Autores: Alvarez, S.; Garcia, T.; Villareal, H.; Galindo, J.; Fraga, I.; Pelegrín, E.
Se desarrollaron cuatro diseños experimentales completamente aleatorizados. El primero se realizó a escala de laboratorio, en cajas plásticas de 40L de capacidad y 10 juveniles/caja, para evaluar la respuesta de los camarones ante la sustitución parcial y total de la harina de pescado por soya en la dieta, teniendo como control la fórmula empleada en el engorde a escala comercial.
Tipo: Proceedings Paper
Palavras-chave: Prawn culture; Diets; Animal growth.
Ano: 2004
URL: http://hdl.handle.net/1834/1881

Alternativas tecnológicas para a redução de queimadas em pastagens da amazônia Ocidental, 2003.
Provedor de dados: 14
Autores: COSTA, N. de L.; TOWNSEND, C. R.
Neste trabalho são disponibilizadas alternativas tecnológicas, as quais convenientemente utilizadas, podem contribuir de forma significativa para a reduzir a necessidade da utilização de queimadas em pastagens cultivadas da Amazônia Ocidental.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Amazônia Ocidental; Western Amazon; Pastagem; Queimada; Redução; Transferência de Tecnologia; Adoção de Inovações; Pastures; Burnt soils; Control methods; Innovation adoption; Technology transfer.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/705139

Alternativas tecnológicas para el procesamiento del camarón blanco ( litopenaeus schmitti) cultivado en Cuba
Provedor de dados: 20
Autores: Flores Gutiérrez, E. R.
El cultivo del camarón se ha presentado como una alternativa de producción de  este crustáceo ante los altos costos de las faenas de pesca provocados por los  altos precios del combustible y los bajos rendimientos de las capturas ante el  agotamiento del recurso.    En el presente trabajo se presentan varias tecnologías de procesamiento del  camarón susceptibles de ser aplicadas para su comercialización, así como una  alternativa de organización del proceso de manipulación y procesamiento  industrial que contempla una inversión para el procesamiento en las propias  camaroneras, la cual conlleva una disminución de los costos de producción.    Como resultados se obtuvieron las tecnologías para la producción de camarón  entero, entero precocido, entero...
Tipo: Theses and Dissertations
Palavras-chave: Shrimp culture; Technology; Processing fishery products.
Ano: 2001
URL: http://hdl.handle.net/1834/4232

Alternativas tecnológicas para el procesamiento del  camarón blanco (Litopenaeus schmitti) cultivado en Cuba.
Provedor de dados: 20
Autores: Flores Gutiérrez, Eduardo R.
El cultivo del camarón se ha presentado como una alternativa de producción de  este crustáceo ante los altos costos de las faenas de pesca provocados por los  altos precios del combustible y los bajos rendimientos de las capturas ante el  agotamiento del recurso.    En el presente trabajo se presentan varias tecnologías de procesamiento del  camarón susceptibles de ser aplicadas para su comercialización, así como una  alternativa de organización del proceso de manipulación y procesamiento  industrial que contempla una inversión para el procesamiento en las propias  camaroneras, la cual conlleva una disminución de los costos de producción.    Como resultados se obtuvieron las tecnologías para la producción de camarón  entero, entero precocido, entero...
Tipo: Theses and Dissertations
Palavras-chave: Marine shrimp culture; Shrimp nutrition; Quality control; Processing fishery products.
Ano: 2001
URL: http://hdl.handle.net/1834/4228

Alternativas Tecnológicas Para El Procesamiento Industrial De La Langosta De Agua Dulce (Cherax Quadricarinatus) Cultivada En Cuba.
Provedor de dados: 20
Autores: Trujillo, Vento; Zoila, Marcia.
El cultivo de la langosta de agua dulce (Cherax quadricarinatus) se desarrolla de manera excelente en climas tropicales. El incremento de esta especie cultivada en nuestro país pue-de convertirse en un importante renglón exportable.  El objetivo del presente trabajo es establecer tecnologías para el procesamiento de la lan-gosta de cultivo susceptibles de ser empleadas en el país tomando como base las aplicadas a la langosta marina con vistas a su comercialización con calidad exportable, evaluándose además la factibilidad técnico- económica de las alternativas propuestas.  Para el desarrollo del trabajo se realizó la caracterización física, química y nutricional de la langosta. Las alternativas tecnológicas consideradas para el procesamiento fueron las de...
Tipo: Theses and Dissertations
Palavras-chave: Fishery industry; Crayfish culture.
Ano: 2001
URL: http://hdl.handle.net/1834/1549

Alternativas terapéuticas para pacientes portadores de colitis idiopática utilizando aloe vera l. (sábila): Una experiencia
Provedor de dados: 98
Autores: León Sarabia,Jorge Enrique; Rosales Clares,Vivian del Pilar; Rosales Clares,Reinaldo Alberto; Pavón Hernández,Vital.
Se evaluó las propiedades farmacológicas y terapéuticas de la Aloe vera L. (sábila) en el tratamiento de las crisis de colitis ulcerativa idiopática (CUI) y en el tratamiento de la prevención de las recaídas durante el período de remisión de la enfermedad en pacientes portadores de dicha entidad atendidos en el Hospital Docente General "Orlando Pantoja Tamayo" en Contramaestre, Santiago de Cuba. Se comprobó mediante anamnesis, evaluación endoscópica periódica, así como confirmación estadística posterior, las propiedades terapéuticas de la planta en los períodos de crisis de la enfermedad donde casi la totalidad de los casos curaron en un período no mayor de 7 d y el resto no sobrepasó los 15 d de evolución. Así también se observó la poca influencia sobre...
Tipo: Journal article
Palavras-chave: COLITIS ULCERATIVA/terapia COLITIS ULCERATIVA/prevención &amp;amp; Control ALOE/uso terapéutico.
Ano: 1999
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961999000300004

Alternative à la chimiothérapie dans la maîtrise du parasitisme digestif des petits ruminants:  Rôle des tanins condensés
Provedor de dados: 21
Recent results have shown that tanniferous plants might represent an alternative option to chemical drugs to control parasitic nematodes of the gastrointestinal tract in small ruminants since some anthelmintic activity has been associated with the consumption of the plants.  The 2 main objectives of the project are :    1 to understand the mechanisms explaining the activity of tannin rich  plants against nematode parasites of sheep and goats    2 to identify  novel natural resources to exploit for non chemical control of parasite   in various farming systems, including organic farming. In particular, the project focus on potential  industrial agroressources     In vitro and in vivo  assays   on parasites  and on infected  animals to measure the...
Tipo: Project description
Palavras-chave: Sheep and goats; Health and welfare.
Ano: 2023

Alternative au cuivre : Des pistes intéressantes - Bilan de 4 années de programme européen REPCO, 2004-2007
Provedor de dados: 21
Autores: GOMEZ, Christelle.
As part of the European project REPCO on the search for alternatives to copper, products have been tested in arboriculture and organic viticulture in order to control the scab of the apple tree Venturia inaequalis and the mildew of the vine Plasmopara viticola. Natural defense stimulators, biological fungicides and biological control agents were selected and evaluated in the laboratory and in the field by the various partner organizations of the project. The Avignon GRAB was particularly involved in field trials to evaluate the efficacy of these alternative products on vine blight. These four years of study highlight the interest of some alternative products to copper. The elicitors, antagonists, biostimulants and biological fungicides are an interesting...
Tipo: Newspaper or magazine article
Palavras-chave: Fruit and berries Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/34900/1/doc_num.php_explnum_id%3D538

Alternative budburst management in Campanha Gaúcha vineyards
Provedor de dados: 94
Autores: Rosa,Aline Mabel; Marodin,Gilmar Arduino Bettio; Fialho,Flávio Bello; Marchi,Vagner de Vargas; Santos,Henrique Pessoa dos.
Abstract  Seeking a less toxic alternative to budburst management than hydrogen cyanamide, doses of the mineral-organic product Erger® were tested in combination with calcium nitrate (Ca(NO3)2). The experiment was conducted in Santana do Livramento, southern Brazil, during the 2013/14 and 2014/15 growth cycles, in a ‘Merlot’ vineyard conducted in a vertical trellis system, pruned in double Guyot, with SO4 rootstock. Treatments were: Control (unsprayed); 5.0% Ca(NO3)2; 2.5% Erger® + 5.0% Ca(NO3)2; 5.0% Erger® + 5.0% Ca(NO3)2; 7.5% Erger® + 5.0% Ca(NO3)2; 3.5% Dormex® (positive control). All Erger® treatments stimulated budbreak, increasing budburst from 68% (unsprayed and calcium nitrate means) to 83% (Erger® means) in the first cycle and from 85% to 96% in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bud dormancy; Hydrogen cyanamide; Erger®; Merlot; Vitis vinifera.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000100201

Alternative chromatographic system for the quality control of lipophilic technetium-99m radiopharmaceuticals such as [99mTc(MIBI)6]+
Provedor de dados: 56
Autores: Faria,D.P.; Buchpiguel,C.A.; Marques,F.L.N.
Knowledge of the radiochemical purity of radiopharmaceuticals is mandatory and can be evaluated by several methods and techniques. Planar chromatography is the technique normally employed in nuclear medicine since it is simple, rapid and usually of low cost. There is no standard system for the chromatographic technique, but price, separation efficiency and short time for execution must be considered. We have studied an alternative system using common chromatographic stationary phase and alcohol or alcohol:chloroform mixtures as the mobile phase, using the lipophilic radiopharmaceutical [99mTc(MIBI)6]+ as a model. Whatman 1 modified phase paper and absolute ethanol, Whatman 1 paper and methanol:chloroform (25:75), Whatman 3MM paper and ethanol:chloroform...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Radiopharmaceuticals; Technetium-99m; Quality control; Chromatography.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015001000007

Alternative complement pathway and factor B activities in rats with altered blood levels of thyroid hormone
Provedor de dados: 56
Autores: Bitencourt,C.S.; Duarte,C.G.; Azzolini,A.E.C.S.; Assis-Pandochi,A.I.
Evaluating the activity of the complement system under conditions of altered thyroid hormone levels might help elucidate the role of complement in triggering autoimmune processes. Here, we investigated alternative pathway (AP) activity in male Wistar rats (180 ± 10 g) after altering their thyroid hormone levels by treatment with triiodothyronine (T3), propylthiouracil (PTU) or thyroidectomy. T3 and thyroxine (T4) levels were determined by chemiluminescence assays. Hemolytic assays were performed to evaluate the lytic activity of the AP. Factor B activity was evaluated using factor B-deficient serum. An anti-human factor B antibody was used to measure factor B levels in serum by radial immunodiffusion. T3 measurements in thyroidectomized animals or animals...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thyroid hormone; Complement system; Alternative complement pathway; Factor B; T3; T4.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000300006

Alternative control of Meloidogyne incognita in tomato plants
Provedor de dados: 22
Autores: Dias, Milena Hissamura; Barbosa, Jaqueline de Araujo; Peters, Francielle Fiorentin; Stangarlin, José Renato; Esteves, Rogério Lopez.
The genus Meloidogyne has a wide geographical distribution, parasitizing plant cultivars around the world and causing large losses for farmers. Then, is necessary the search for alternative control methods which are cheap and that improving the quality of products and protection of the environment. The aim of this study was to evaluate different alternative control methods against Meloidogyne incognita on tomato plants: extract of Ruta graveolens, homeopathic products and commercial bioproducts. Five treatments were evaluated: non-treated plants (water), extract of R. graveolens, Thuya occidentalis homeopathic, Cina homeopathic, bioproduct based on the fungus Pochonia chlamidosporia and bioproduct based on Bacillus spp. and Trychoderma spp. The assay was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Homeopatia; Controle biológico; Nematoides de galhas; Ruta graveolens.
Ano: 2016
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/12491

Alternative Control of Plant Pathogen Fungi Through Ethanolic Extracts of Avocado Seeds (Persea Americana Mill.)
Provedor de dados: 52
Autores: Fagundes,Miriã Cristina Pereira; Oliveira,Adelson Francisco de; Carvalho,Vicente Luiz de; Ramos,José Darlan; Santos,Verônica Andrade dos; Rufini,José Carlos Moraes.
ABSTRACT The aim of this study was to evaluate the antifungal action of ethanolic extracts of avocado seeds, by conducting two experiments in the laboratory of plant pathology of EPAMIG SUL/Lavras, MG, Brazil, in a completely randomized design with three replicates. The first consisted of the following treatments ('Breda' 3%, 'Breda' 2%, 'Margarida' 3%, 'Margarida' 2%, Control, and Ethanol) testing its inhibitory effect on two fungal species (Colletotrichum gloeosporioides and Monilinia fructicola) and the second consisted of different concentrations of extracts (0%, 0.25%, 0.50%, 0.75%, 1.0%, 1.5%, and 2.0%) on the fungus F fructicola. The evaluations were performed at three times (7, 14, and 21 days of incubation) by measurements of the mycelial diameter...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal activity; Colletotrichum gloeosporioides; Monilinia fructicola; Postharvest.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100204

Alternative control of Tetranychus evansi Baker &amp;amp; Pritchard (Acari: Tetranychidae) on tomato plants grown in greenhouses
Provedor de dados: 82
Autores: Soto,Alberto; Venzon,Madelaine; Oliveira,Rafael M; Oliveira,Hamilton G; Pallini,Angelo.
Tetranychus evansi Baker &amp;amp; Pritchard is an important pest of solanaceous plants, including tomatoes. This mite is characterized by a high reproductive rate, which leads to high population growth in a short period of time causing important economic damage. Control of T. evansi is mainly through synthetic acaricides. In searching for environmentally friendly control measures, we evaluated the efficiency of alternative products to control T. evansi on tomato plants under greenhouse conditions. The products tested were lime sulphur and neem based products. We first estimated the lethal concentration (LC) and instantaneous rate of increase (r i) of T. evansi exposed to different product concentrations in laboratory conditions, and later tested the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acari; Azadirachta indica; Lime sulphur; Efficiency; Phytotoxicity.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000400027

Alternative fungicides to control apple scab in organic apple production:  results of an orchard trial in 2003
Provedor de dados: 21
Autores: Lindhard, Hanne; Paaske, Klaus; Bengtsson, Marianne V.; Hockenhull, John.
Apple scab, caused by the fungus Venturia inaequalis, is the disease that most often decreases yield and causes loss of fruit quality in organic apple production. Damage to the fruits consists of brown to black spots, but in some years and on some varieties attacks can result in small misshapen fruits, that are totally unsuitable for fresh consumption.
Tipo: Journal paper
Palavras-chave: Fruit and berries.
Ano: 2004
URL: http://orgprints.org/4532/1/Alternative_fungicides_to_control_apple_scab_%2D_results_of_an_orchard_trail_in_2003.pdf

Alternative liming blends for fish culture
Provedor de dados: 2
Autores: Nobre, Mikaely Karine Barbosa; Universidade Federal do Ceará; Lima, Francisco Roberto dos Santos; Universidade Federal do Ceará; Magalhães, Frederico Batista; Universidade Federal do Ceará; Sá, Marcelo Vinícius do Carmo e; Universidade Federal do Ceará.
Calcium carbonate (limestone) is a safe but slow-acting product for aquaculture liming. Calcium oxide (lime) is a fast-acting but dangerous product. It would be interesting to have simultaneously a safe and fast-acting liming product. The present work aimed to evaluate two alternative liming blends for tilapia culture. The culture water was initially acidified with HCl. Next, the same quantity of CaCO3 (control), Na2CO3+CaSO4 or Na2CO3+CaCl2 was applied to the culture water. There were also non-limed tanks. One hundred and twenty Nile tilapia juveniles (1.6 ± 0.1 g) were stocked in twenty 250-L culture tanks for 10 weeks. All products used were similarly efficient in increasing the alkalinity of water. The probable better environment for algal growth in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Limestone; Lime; Tilapia; Alkalinity; Aquaculture.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21282

Alternative management strategies to prevent and control endo-parasite diseases in sheep and goat farming systems - a review of the recent scientific knowledge
Provedor de dados: 21
Autores: Rahmann, Gerold; Seip, Hannah.
Infestation with gastro-intestinal nematodes (GIN) in small ruminants can cause server economic losses and endanger animal welfare. The development of organic farming systems, the increased public awareness for drug residues in agricultural products and the development of resistant strains of parasites have enforced the search for sustainable alternatives.    The aim of this review is to summarise the current scientific knowledge of alternative strategies to prevent and control endo-parasitic diseases in sheep and goat farming systems. Many scientific studies and projects have shown big discrepancies between results obtained under in vitro and in vivo conditions. Often research has been carried out under clinical conditions for extended periods before...
Tipo: Journal paper
Palavras-chave: Sheep and goats; Health and welfare.
Ano: 2007
URL: http://orgprints.org/12975/1/180_LFV%2D2007%2D2%2DArtikel%2D08%2DRahmann%2DSeip.pdf

Alternative methods for rearing grass-feeding spittlebugs (Hemiptera: Cercopidae)
Provedor de dados: 82
Autores: Peck,Daniel C.; Morales,Anuar; Castro,Ulises.
Two methodologies for rearing grass-feeding spittlebugs are described and were evaluated with Aeneolamia varia (Fabricius) on Brachiaria ruziziensis Germ. &amp;amp; Evrard. To promote biological studies, a new small-scale rearing unit was developed to maintain spittlebug life stages in the greenhouse year round. This unit features a plant tray established with roots as feeding sites for nymphal development alongside an adult emergence cage with plants and oviposition substrate for egg collection. For large-scale production, an improved mass-rearing colony was designed to reduce inputs and streamline production. The major feature was a covered box with root and microclimate conditions adequate for nymphal development. Efficiency of adult production from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aeneolamia varia; Brachiaria; Forage grass pest; Froghopper; Rearing technique.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2004000300005

Alternative mitochondrial functions in cell physiopathology: beyond ATP production
Provedor de dados: 56
Autores: Kowaltowski,A.J.
It is well known that mitochondria are the main site for ATP generation within most tissues. However, mitochondria also participate in a surprising number of alternative activities, including intracellular Ca2+ regulation, thermogenesis and the control of apoptosis. In addition, mitochondria are the main cellular generators of reactive oxygen species, and may trigger necrotic cell death under conditions of oxidative stress. This review concentrates on these alternative mitochondrial functions, and their role in cell physiopathology.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mitochondrial permeability transition; Uncoupling proteins; Alternative oxidase; Cardioprotection; Free radicals; Aging.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000200014

Alternative parameters for echocardiographic assessment of fetal diastolic function
Provedor de dados: 56
Autores: Zielinsky,P.; Nicoloso,L.H.; Firpo,C.; Marcantonio,S.; Scheid,M.; Gus,E.I.; Piccoli,A.L.; Satler,F.; Manica,J.L.; Zanettini,J.; Cardoso,R.T.
Alternative methods to assess ventricular diastolic function in the fetus are proposed. Fetal myocardial hypertrophy in maternal diabetes was used as a model of decreased left ventricular compliance (LVC), and fetal respiratory movements as a model of increased LVC. Comparison of three groups of fetuses showed that, in 10 fetuses of diabetic mothers (FDM) with septal hypertrophy (SH), the mean excursion index of the septum primum (EISP) (ratio between the linear excursion of the flap valve and the left atrial diameter) was 0.36 ± 0.09, in 8 FDM without SH it was 0.51 ± 0.09 (P = 0.001), and in the 8 normal control fetuses (NCF) it was 0.49 ± 0.12 (P = 0.003). In another study, 28 fetuses in apnea had a mean EISP of 0.39 ± 0.05 which increased to 0.57 ±...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fetal echocardiography; Fetal diastolic function; Prenatal diagnosis; Septum primum mobility; Fetal pulmonary vein flow.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000100005

Alternative procedure for the cold test for soybean seeds
Provedor de dados: 63
Autores: Vieira,Bruno Guilherme Torres Licursi; Vieira,Roberval Daiton; Krzyzanowski,Francisco Carlos; França Neto,José de Barros.
The growing demand for high quality soybean [Glycine max (L.) Merrill] seeds requires a precise seed quality control system from the seed industry. One way to accomplish this is by improving vigor testing. Cold test has been traditionally employed for corn seeds. However, it has also been used for other seed crops such as cotton (Gossypium spp.), soybean (Glycine Max), dry bean (Phaseolus vulgaris) and pea (Pisum sativum). This study was carried out with the objective of adjusting an alternative procedure for the cold test to determine soybean seed vigor. Six commercial soybean seed lots of the cultivar BRS 133 were used. The physiological potential of the seed lots was evaluated by germination on paper towel and sand box, seedling field emergence,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max (L.) Merrill; Physiological potential; Emergence; Vigor tests.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000500007

Alternative products in the "in vitro" inhibition of Sclerotinia sclerotiorum
Provedor de dados: 63
Autores: Mello,Alexandre Furtado Silveira; Lourenço,Silvia de Afonseca; Amorim,Lilian.
The white mold, caused by Sclerotinia sclerotiorum, is a very important disease in tomato crops. The objective of this work was to study the effect of plant extracts, animal residues and industrial by-products extracts on the fungus in vitro growth. Treatments consisted of different concentrations of pyrolignous oil, neem oil, monosodium glutamate, sewage sludge and organic compost [coffee residue (50%) coal residue (10%), maize residue (25%), poultry waste (12.5%), poultry meal (2.5%)]. Positive control consisted of Petri dishes with PDA medium and negative control treatment consisted of PDA medium with procymidone. Fungus colonies were incubated at 22ºC and light intensity of 260 lux. Variables such as mycelium growth rate, sclerotia production, and...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Azadirachta indica; Sclerotinia white rot; Alternative control; Sewage sludge; Soil respiration.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000200014

Alternative protection of potatoes in organic farming
Provedor de dados: 21
Autores: Tomasek, Jaroslav; Dvorak, Petr.
There were tested water extracts from Syringa vulgaris and Pyrethrum parthenium. They did not prove signincant differences ofdecrease of the air attack ofColorado potato beetle (Leptinotarsa decemlineata), the activity ofeggs -laying and the occurrence oflarvae in comparison to the control. Interesting trends oflower-eggs lying and a lower larvae occurrence were discovered. The liquid spray against the late blight (Phytophthora infestans) did not signincantly decrease neither occurrence oflate blight or the yield.  The production of the bio-potatoes is only 0,2% of all potatoes production in the Czech Republic. The aim of this experiment was to try alternative methods of regulation of Colorado potato beetle and late blight (the biggest harmful! organisms...
Tipo: Conference paper, poster, etc.
Palavras-chave: Farming Systems; Crop husbandry.
Ano: 2009
URL: http://orgprints.org/21809/1/QH82149_07_2009.pdf

Alternative protein crops in diets of organically housed weanling pigs
Provedor de dados: 21
Autores: van der Peet-Schwering, C.M.C.; van Krimpen, M.M.; Kemme, P.; Binnendijk, G.P.; Jongbloed, A.W.; Henniphof-Schoonhoven, C.
The effects of feeding weanling piglets diets with three different levels of three organic protein crops on performance and health were studied. Diets with 10, 20 or 30% field beans (Vicia faba, variety Aurelia, tannin-free), 10, 20 or 30% white lupins (Lupinus albus, variety Dieta, alkaloid-low) and 20, 40 or 60% quinoa (Chenopodium quinoa, variety Atlas, saponin-free) were compared with a control diet containing 15% soybean expeller and 2.2% soybeans. Besides, the apparent ileal digestibility and the apparent total tract digestibility of nutrients of the control diet and the diets with 30% field beans, 30% lupins and 40% quinoa were assessed. At weaning, 1,055 weanling piglets were assigned to one of the 10 experimental treatments. The piglets were...
Tipo: Book
Palavras-chave: Pigs; Feeding and growth.
Ano: 2006

Alternative sanitization methods for minimally processed lettuce in comparison to sodium hypochlorite
Provedor de dados: 58
Autores: Bachelli,Mara Lígia Biazotto; Amaral,Rívia Darla Álvares; Benedetti,Benedito Carlos.
Lettuce is a leafy vegetable widely used in industry for minimally processed products, in which the step of sanitization is the crucial moment for ensuring a safe food for consumption. Chlorinated compounds, mainly sodium hypochlorite, are the most used in Brazil, but the formation of trihalomethanes from this sanitizer is a drawback. Then, the search for alternative methods to sodium hypochlorite has been emerging as a matter of great interest. The suitability of chlorine dioxide (60 mg L-1/10 min), peracetic acid (100 mg L-1/15 min) and ozonated water (1.2 mg L-1 /1 min) as alternative sanitizers to sodium hypochlorite (150 mg L-1 free chlorine/15 min) were evaluated. Minimally processed lettuce washed with tap water for 1 min was used as a control....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food safety; Chlorine dioxide; Peracetic acid; Ozone; Minimal processing.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300002

Alternative sources of potassium for maize cultivation
Provedor de dados: 64
Autores: Boldrin,Paulo Fernandes; Souto,Hugo Ferreira; Salles,Lenise Selaysim; Furtini Neto,Antonio Eduardo.
ABSTRACT Brazil is the largest importer of potassium (K) fertilizers in the world, importing about 95% of all the potassium consumed by its agriculture. Thus, new sources and technologies to increase K availability have been studied. This study aimed to evaluate the agronomic viability of the use of calcined glauconite and phonolite blended and granulated with two organic materials on maize growth in pots, using two soils of contrasting texture in a controlled environment. Were evaluated eight sources of potassium: phonolite; phonolite + poultry manure; phonolite + cattle manure; calcined glauconite; calcined glauconite + poultry manure; calcined glauconite + cattle manure; negative control (no K); and positive control (K - KCl), and two soils of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Phonolite; Calcined glauconite.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100247

Alternative sources of potassium in coffee plants for better soil fertility, productivity, and beverage quality
Provedor de dados: 86
Autores: Dias,Kaio Gonçalves de Lima; Guimarães,Paulo Tácito Gontijo; do Carmo,Davi Lopes; Reis,Thiago Henrique Pereira; Lacerda,Julian Junio de Jesus.
Abstract: The objective of this work was to evaluate alternative sources of potassium for improving soil fertility and coffee productivity and beverage quality. The experiment was conducted in a coffee (Coffea arabica) crop, planted in an Oxisol area, in the municipality of Patrocínio, in the state of Minas Gerais, Brazil. The treatments consisted of the K sources TK47 and Super Greensand (SG) - both based on glauconite silicate mineral -, at the following doses: 0 kg ha-1 K2O (control); 42, 84, 168, and 336 kg ha-1 K2O from TK47; 618 kg ha-1 K2O from KCl; and 168 kg ha-1 K2O from SG. A randomized complete block design was used, with four replicates in each treatment. The experimental units consisted of three rows with ten plants each, using the eight...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arabica; Alternative fertilizers; Coffee mineral nutrition; Glauconite; Potassium gradual solubilization; Residual effect.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201355

Alternative Specifications and Extensions of the Economic Threshold Concept and the Control of Livestock Pests
Provedor de dados: 31
Autores: Davis,   Rex; Tisdell,   Clement A.
Outlines economic threshold models developed by various authors as an aid to decision-making about pest management. Particular attention is given to the models proposed by Stern et al. (1959) and by Headley (1972) and the major differences in their concepts of the economic threshold. Limitations and scope for applying these models is discussed as well as differences in the extent of their applications are reviewed. After considering general issues in this respect, particular matters are given attention such as difficulties raised by complexities in the nature of yield loss function due to uncertainty in pest densities, the presence of multiple-pests, and the occurrence of pesticide resistance. An extension is provided for multiple species pest models to...
Tipo: Working or Discussion Paper
Palavras-chave: Pest control; Pest management; Livestock; Livestock Production/Industries.
Ano: 2001
URL: http://purl.umn.edu/48381

Alternative strategies to prevent and control endoparasite diseases in organic sheep and goat farming systems – a review of current scientific knowledge
Provedor de dados: 21
Autores: Rahmann, Gerold; Seip, Hannah.
Infestation with gastro-intestinal nematodes in small ruminants can cause server economic losses and endanger animal welfare. The development of organic farming systems, the increased public awareness for drug residues in agricultural products and the development of resistant strains of parasites have enforced the search for sustainable alternatives. The aim of this paper was to provide information about endoparasite infecting small ruminants, to give an overview of the legal background and to investigate alternative control strategies and treatments, discussing them on overall viability. The main section has been divided into a part of  non-chemotherapeutical control strategies and alternative anthelmintic treatments.  The conducted research has revealed...
Tipo: Conference paper, poster, etc.
Palavras-chave: Sheep and goats; Health and welfare.
Ano: 2006
URL: http://orgprints.org/10030/1/08_Rahmann_Endoparasiten_fertig.pdf

Alternative treatments in the control of psoroptic  mange in a flock of organic production sheep.
Provedor de dados: 21
Autores: Palacios, C.; Lafuente, M.A.; de la Fuente, L.F.
Abstract  The aim of the experiment was to verify the efficacy of the treatment of psoroptic mange in a flock of Churra sheep farmed under organic production conditions, using alternative methods. One group, C Control (N=9), was given no treatment, a second group, TAH Antihomotoxic (N=10), was intramuscularly administered an antihomotoxic preparation every two days, thus receiving a total of seven injections over a two-week period. The third group, TCI Citronella (N=10), was topically administered a 1% solution of 50%essential Citronella Java oil and 50% Potassium Soap twice daily, in each milking, during the two-week period. A fourth group, TCIT Citronella+Thymol (N=10), was topically administered Citronella with 1% mother tincture of Thymol to boost the...
Tipo: Conference paper, poster, etc.
Palavras-chave: Sheep and goats; Health and welfare.
Ano: 2009
URL: http://orgprints.org/18614/1/Palacios_2009_Sheep.pdf

Alternatively spliced MEFV transcript lacking exon 2 and its protein isoform pyrin-2d implies an epigenetic regulation of the gene in inflammatory cell culture models
Provedor de dados: 74
Autores: Erdem,Gokce Celikyapi; Erdemir,Sule; Abaci,Irem; Aydin,Asli K. Kirectepe; Everest,Elif; Turanli,Eda Tahir.
Abstract The function of gene body DNA methylation in alternative splicing, and its relation to disease pathogenesis is not fully elucidated. The gene for familial Mediterranean fever (MEFV) encodes the pyrin protein and contains a 998 bp CpG island, covering the second exon, which is differentially methylated in FMF patients compared to healthy controls. Our further observation of increased exon 2-spliced MEFV transcript in leukocytes of FMF patients provoked us to test the role of exon methylation in alternative splicing using inflammatory cell culture models. First, in vitro exon methylation triggered an increased level of exon 2 exclusion using a splicing cassette in a promyelocytic leukemia cell line (HL-60). HL-60 cells subjected to methylating and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exon methylation; MEFV; Pyrin; Alternative splicing; Inflammation.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000400688

ALTERNATIVES FOR PRESERVATION OF BIOACTIVE COMPOUNDS IN BLUEBERRY PULP: HEAT TREATMENT ASSOCIATED WITH THE ADDITION OF XANTHAN PRUNI
Provedor de dados: 94
Autores: FIORAVANTE,JÚLIA BORIN; SOUZA,VANESSA RODRIGUES DUARTE DE; RODRIGUES,ROSANE DA SILVA; DIAZ,PATRÍCIA DE OLIVEIRA; MOREIRA,ANGELITA DA SILVEIRA.
ABSTRACT  In this study, to increase the preservation of phenolic bioactive compounds and antioxidant activity in blueberry pulp, heat treatment associated with addition of xanthan gum was used. A commercial mixture of blueberries (Powerblue, Climax and Bluegen cultivars) was added with 0.08% (w/w) citric acid and subjected to heat treatment by direct heating until 90 °C in conventional open pan (OP) and by direct application of steam (AS); both with and without the addition of xanthan pruni (OPX and ASX), followed by pulping. Samples of only frozed fruits were considered as control. The five treatments remained under freezing and were evaluated until 90 days of storage for antioxidant activity, phenols, flavonoids and total monomeric anthocyanins. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blueberry; Vaccinium ashei; Fruit pulp; Heat; Fruit technology; Storage.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000300902

Alternatives to antibiotic growth promoters for weanling pigs
Provedor de dados: 65
Autores: Santana,Marconi Bonfim de; Melo,Antonio Diego Brandão; Cruz,Daniel Ribeiro; Garbossa,Cesar Augusto Pospissil; Andrade,Carla de; Cantarelli,Vinicius de Souza; Costa,Leandro Batista.
An experiment was conducted to evaluate the addition of sodium butyrate, plant extracts and nucleotides on weanling pig performance, digestive content pH, organ morphometry, and intestinal epithelial histology. A total of 90 piglets at 21 days of age and an average initial weight of 6.35±0.34kg were used. The piglets were distributed in a randomized complete block design with five treatments, six replicates, and three animals per experimental unit. The treatments consisted of the following: Control: basal diet without antibiotic; Antibiotic: basal diet with 40mg kg-1 colistin sulfate and Additive: 1000, 1500 and 2000mg kg-1 of a combination of sodium butyrate + plant extracts + nucleotides. The experiment lasted 35 days, at which time one animal was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbal extracts; Nucleotides; Nutrition; Sodium butyrate.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000601093

Alternatives to antibiotics in diets of weaned piglets
Provedor de dados: 65
Autores: Ferreira,Soraia Viana; Barbosa,Lívia Maria dos Reis; Soares,Marcos Henrique; Marcolla,Camila Schultz; Holanda,Débora Muratori; Saraiva,Alysson.
ABSTRACT: This experiment was conducted to evaluate the effect of growth promoter additives an alternative to antibiotics on performance, intestinal morphology and on microbiota of 21-to-35-day-old piglets. A total of 160 commercial crossbred piglets (males and females) with initial weight of 6.10±0.709kg were allotted in a completely randomized design with five treatments: Basal diet - Negative Control (NC); Basal diet + antibiotic (PC); Basal diet + mannanoligosaccharides (MOS); Basal diet + organic acids (OA), Basal diet + mannanoligosacharides + organic acids (MOS+OA), eight replicates and four piglets per experimental unit. The inclusion of additives in the diets had no effect (P&gt;0.05) on the final average weight of piglets. Similarly, no effects...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Additives; Growth promoters; Organic acids; Prebiotics.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200651

Alternatives to copper-based treatments for the control of grapevine downy mildew (Plasmopara viticola): 5-year synthesis of trials in France and Italy
Provedor de dados: 21
Autores: Parveaud, Claude-Eric; Gomez, Christelle; Chovelon, Marc; Lambion, Jérôme; Dagostin, Silvia; Pertot, Ilaria.
The objective of the UE-funded program REPCO (FP6) was to identify new alternatives to copper fungicides in organic farming. Two pathogens have been considered: grapevine downy mildew (Plasmopara viticola) and apple scab (Venturia inaequalis). Research on grapevine was carried out by GRAB (Avignon, France) and FEM-IASMA (San Michele all’Adige, Italy). Trials were carried out under natural conditions in order to test reduced doses of copper and copper-free alternatives. Five-year trials proved that copper is the best fungicide. However, the use of new low copper rate formulations and the association of copper-free alternatives with reduced doses of copper or with reduced number of copper applications (limited to the most susceptible grapevine growth stages)...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Viticulture.
Ano: 2010
URL: http://orgprints.org/17821/1/Poster_Alternatives_to_copper_V5.pdf

Alternatives to deforestation steps toward sustainable use of the Amazon rain forest
Provedor de dados: 121
Autores: editado por Anthony B. Anderson.
Tipo: Text
Palavras-chave: CONTROL; DESARROLLO RURAL.
Ano: 1990
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=101367&tab=opac&oai:flacso.org.ec:101367

Alternatives to increase the red color of the peel in ‘Daiane’ and ‘Venice’ apples
Provedor de dados: 94
Autores: Fenili,Cristhian Leonardo; Petri,José Luiz; Steffens,Cristiano André; Martin,Mariuccia Schlichting de; Amarante,Cassandro Vidal Talamini do; Heinzen,Angélica Schmitz.
Abstract  This study aimed evaluate the effect of biostimulants, foliar fertilizers and ethephon on the red color in the peel of ‘Daiane’ and ‘Venice’ apples. The experiments were conducted in Caçador/SC, during 2015/2016 and 2016/2017 seasons. In 2015/2016, the treatments were: Control; Biostimulant I; Foliar fertilizer I + Foliar fertilizer II; Biostimulant II and KCl. In 2016/2017, was included the Ethephon treatment. In 2016/2017, Biostimulant I, Foliar fertilizer I + Foliar fertilizer II and Biostimulant II increased the percentage of ‘Daiane’ and ‘Venice’ apples with greater red peel cover, without affecting the quality and maturity of the fruits. In both cultivars, ethephon was treatment that promoted a higher percentage of apples in the category...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malus domestica; Anthocyanin; Biostimulants; Foliar fertilizer; Fruit quality.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000200303

Alternatives to Synthetic Chemical Antiparasitic Drugs in Organic Livestock Farming in Europe
Provedor de dados: 21
Autores: Hoste, Hervé; Sotiraki, Smaragda; Mejer, Helena; Heckendorn, Felix; Maurer, Veronika; Thamsborg, Stig.
Gastrointestinal parasitism with helminths and protozoa remains a major threat in cattle and small ruminant production and has been “rediscovered” in pig and poultry production systems operating under organic farming rules because of the requirement to grant outdoor access to the animals. The control of these parasitic infections is a key issue for the economic viability of farms and for animal welfare. Control solutions aim at (i) providing the agronomical bases for parasite control through rational management of pastures; (ii) stimulating the host immune response through different means; (iii) exploring and evaluating the efficacy of new drugs (i.e., phytotherapy, homeopathy and nutraceuticals); and (iv) developing new concepts of application of chemical...
Tipo: Book chapter
Palavras-chave: Health and welfare.
Ano: 2014
URL: http://orgprints.org/25741/1/Chapter%208_ProofPDF-2HH.pdf

ALTERNTIVE PROTECTION OF BIOPOTATOES IN ORGANIC FARMING
Provedor de dados: 21
Autores: Tomasek, Jaroslav; Dvorak, Petr.
There were tested water extracts from Syringa vulgaris and Pyrethrum parthenium. They did not prove significant differences of decrease of the air attack of Colorado potato beetle (Leptinotarsa decemlineata), the activity of eggs – laying and the occurrence of larvae in comparison to the control. Interesting trends of lower-eggs lying and a lower larvae occurrence were discovered. The liquid spray against the late blight (Phytophthora infestans) did not significantly decrease neither occurrence of late blight or the yield.  The production of the bio-potatoes is only 0,2 % of all potatoes production in the Czech Republic. The aim of this experiment was to try alternative methods of regulation of Colorado potato beetle and late blight (the biggest harmfull...
Tipo: Journal paper
Palavras-chave: "Organics" in general; Environmental aspects; Knowledge management.
Ano: 2010
URL: http://orgprints.org/20584/1/%C4%8Dl%C3%A1nek_Rumunsko_Tom%C3%A1%C5%A1ek%2C_2009._52_1%2C_133%2D135..pdf

Although it induces synchronized ovulation, hCG reduces the fertility of Santa Ines ewes submitted to TAI
Provedor de dados: 45
Autores: Dias,L.M.K.; Sales,J.N.S.; Viau,P.; Barros,M.B.P.; Nicolau,S.S.; Simões,L.M.S.; Alves,N.G.; Alonso,M.A.; Valentim,R.; Oliveira,C.A.
ABSTRACT The aim of this study was to evaluate hCG treatment on ovarian response and on pregnancy rate using a 9-day oestrus synchronization protocol in Santa Ines ewes. On a random oestrus cycle day, ewes received an intravaginal progesterone device (Primer-PR®, Tecnopec, Brazil). Nine days later (Day 9), 30µg of d-cloprostenol (Prolise®, Syntex, Argentina) and 250IU of eCG (Folligon®, Intervet, Brazil) were administered and the progesterone device was removed. This moment, the ewes were randomly assigned on two groups: Control Group and hCG Group. In the hCG Group, the ewes received 500IU of hCG (Vetecor®, Hertape-Calier, Spain) 24h after device removal. In the Control Group, the ewes did not receive any ovulation inductor. Control and hCG Groups ewes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Progesterone; Follicle; Ovulation; Synchronization.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000100122

Alumínio estimula o crescimento radicular de erva-mate?
Provedor de dados: 190
Autores: Benedetti, Eliziane Luiza; Santin, Delmar; Barros, Nairam Félix de; Pereira, Greice Leal; Martinez, Hermínia Prieto; Lima Neves, Julio César.
A toxicidade por Al em plantas se dá de várias maneiras, sendo a inibição do crescimento radicular uma das primeiras a se expressar, embora não seja prontamente perceptível em razão do hábito de crescimento das raízes. O objetivo desse trabalho foi avaliar a tolerância da erva-mate ao Al por meio do crescimento de raízes de mudas submetidas a doses crescentes do elemento. Para isso, testaram-se, três clones (C1, C2 e C3), doses de 100, 500, 1.000 e 2.000 μmol L-1 de Al (AlCAlCl36H2O) e um controle sem Al. Após 50 dias, determinaram-se massa seca das raízes, comprimento e volume total do sistema radicular, comprimento e volume total das raízes em diferentes diâmetros. O Al influenciou positivamente o crescimento das raízes de todos os clones. O maior...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agronomia; Nutrição de plantas Raízes; Tolerância; Ilex paraguariensis Roots; Tolerance; Ilex paraguariensis.
Ano: 2017
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/983

Aluminium in the North Atlantic Ocean and the Labrador Sea (GEOTRACES GA01 section): roles of continental inputs and biogenic particle removal
Provedor de dados: 5
Autores: Barraqueta, Jan-lukas Menzel; Schlosser, Christian; Planquette, Helene; Gourain, Arthur; Cheize, Marie; Boutorh, Julia; Shelley, Rachel; Pereira, Leonardo Contreira; Gledhill, Martha; Hopwood, Mark J.; Lacan, Francois; Lherminier, Pascale; Sarthou, Geraldine; Achterberg, Eric P.
The distribution of dissolved aluminium (dAl) in the water column of the North Atlantic and Labrador Sea was studied along GEOTRACES section GA01 to unravel the sources and sinks of this element. Surface water dAl concentrations were low (median of 2.5 nM) due to low aerosol deposition and removal by phytoplankton. However, surface water dAl concentrations were enhanced on the Iberian and Greenland shelves (up to 30.9 nM) due to continental inputs (rivers, glacial flour and ice melt). A negative correlation was observed between dAl in surface waters and primary production, phytoplankton community structure and biogenic opal production. The abundance of diatoms exerted a significant (p &lt; 0.01) control on the surface particulate Al (pAl) to dAl ratios by...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00422/53359/54197.pdf

Aluminum effects on citric and malic acid excretion in roots and calli of rice cultivars
Provedor de dados: 93
Autores: MACÊDO,CRISTIANE ELIZABETH COSTA DE; KINET,JEAN MARIE; LUTTS,STANLEY.
Citric and malic acid excretion in the medium and malic acid accumulation in seedling roots and embryo-derived calli as possible mechanisms of aluminum (Al) resistance and the effects of a 17-h Al stress period on root growth in Oryza sativa have been studied. Four-day-old seedlings and embryo-derived calli of Al-resistant (IRAT 112 and IR6023) and Al-sensitive (Aiwu and IKP) cultivars were treated with 250 and 500 µM {Al2(S04)3.18H20 }of total aluminum or without Al for 36 hours. After 3 to 36 hours of stress, seedlings and calli were removed from the flasks and concentration of citric and malic acids was estimated in the Al and control solutions. Malic acid was also assayed in roots tips and in callus tissues. After 17-h of Al stress, inhibition of root...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malate; Citrate; Mechanisms Al resistance; Al detoxification; Internal tolerance.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-31312001000100002

Aluminum in corn plants: influence on growth and morpho-anatomy of root and leaf
Provedor de dados: 90
Autores: Batista,Michelli Fernandes; Moscheta,Ismar Sebastião; Bonato,Carlos Moacir; Batista,Marcelo Augusto; Almeida,Odair José Garcia de; Inoue,Tadeu Takeyoshi.
Aluminum (Al) toxicity is one of the most limiting factors for productivity. This research was carried out to assess the influence of Al nutrient solution on plant height, dry weight and morphoanatomical alterations in corn (Zea mays L.) roots and leaves. The experiment was conducted in a greenhouse with five treatments consisting of Al doses (0, 25, 75, 150, and 300 µmol L-1) and six replications. The solutions were constantly aerated, and the pH was initially adjusted to 4.3. The shoot dry matter, root dry matter and plant height decreased significantly with increasing Al concentrations. Compared to the control plants, it was observed that the root growth of corn plants in Al solutions was inhibited, there were fewer lateral roots and the development of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dry matter production; Height; Toxicity; Zea mays L.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000100018

Aluminum stress tolerance in potato genotypes grown with silicon
Provedor de dados: 53
Autores: Dorneles,Athos Odin Severo; Pereira,Aline Soares; Sasso,Victória Martini; Possebom,Gessieli; Tarouco,Camila Peligrinotti; Schorr,Márcio Renan Weber; Rossato,Liana; Ferreira,Paulo Ademar Avela; Tabaldi,Luciane Almeri.
ABSTRACT Potato cultivation is widespread around the world, being exposed to several abiotic stresses, including soils with high aluminum (Al) availability. Silicon (Si) is recognized for alleviating the stress caused by Al in various plant species. Thus, the aim of this study was to investigate the potential of Si to mitigate the oxidative stress caused by Al in potato genotypes, exhibiting differential sensitivity toward this element. Plants of the Al-sensitive genotype (SMIJ319-7) and Al-tolerant genotype (SMIF212-3) were grown for two weeks in a hydroponic system with the nutrient solution containing combinations of Al (0 and 1.85 mM) and Si (0, 0.5 and 1.0 mM). At the end of the experiment, photosynthetic parameters, pigment content, root and shoot...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Beneficial elements; Enzyme activity; Oxidative stress; Toxic elements.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000100012

Alzheimer's disease: is a vaccine possible?
Provedor de dados: 56
Autores: Alves,R.P.S.; Yang,M.J.; Batista,M.T.; Ferreira,L.C.S.
The cause of Alzheimer's disease is still unknown, but the disease is distinctively characterized by the accumulation of β-amyloid plaques and neurofibrillary tangles in the brain. These features have become the primary focus of much of the research looking for new treatments for the disease, including immunotherapy and vaccines targeting β-amyloid in the brain. Adverse effects observed in a clinical trial based on the β-amyloid protein were attributed to the presence of the target antigen and emphasized the relevance of finding safer antigen candidates for active immunization. For this kind of approach, different vaccine formulations using DNA, peptide, and heterologous prime-boost immunization regimens have been proposed. Promising results are expected...
Palavras-chave: Alzheimer's disease; Β-amyloid; Vaccine; Active immunization.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000600438

AMARANTHS (Amaranthus viridis) Dry matter and soil qualities: Organic Vs Inorganic Fertilizers
Provedor de dados: 21
Autores: ADEOLUWA, OLUGBENGA O.; AKINYEMI, OLUWASEYI.
Continuous use of mineral fertilizer in soils is associated with reduced crop and soil quality.In this report, comparative effects of poultry manure and its extract, compost and mineral fertilizers was observed.   The study was carried out on the field in two successive plantings (first planting and residual) at the Department of Agronomy, University of Ibadan, Ibadan, Nigeria. The treatments used were poultry manure, poultry manure extract, NPK(15-15-15), and control. Fertilizer treatments applied at 100 kg N / ha were laid in a completely randomized block design with four replicates.   Observations taken percentage dry matter and some chemical properties of the post harvest soils. Analysis of   variance (ANOVA) at (P&lt;0.05) was used as statistical...
Tipo: Conference paper, poster, etc.
Palavras-chave: Composting and manuring; Nutrient turnover.
Ano: 2014
URL: http://orgprints.org/24105/1/24105%20OWC14%20A4_MM.pdf

Amazon Forest maintenance as a source of environmental services
Provedor de dados: 42
Autores: Fearnside,Philip M.
Amazonian forest produces environmental services such as maintenance of biodiversity, water cycling and carbon stocks. These services have a much greater value to human society than do the timber, beef and other products that are obtained by destroying the forest. Yet institutional mechanisms are still lacking to transform the value of the standing forest into the foundation of an economy based on maintaining rather than destroying this ecosystem. Forest management for commodities such as timber and non-timber forest products faces severe limitations and inherent contradictions unless income is supplemented based on environmenta lservices. Amazon forest is threatened by deforestation, logging, forest fires and climate change. Measures to avoid...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonia; Avoided deforestation; Brazil; Carbon; Deforestation; Global warming; Greenhouse effect; Rainforest.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000100006

AMAZONIAN ISOLATES OF Metarhizium ARE EFFECTIVE FOR KILLING Bactrocera carambolae (DIPTERA: TEPHRITIDAE)
Provedor de dados: 37
Autores: BRITO,Bruna David; LIMA,Adilson Lopes; CRUZ,Kennedy Rodrigues; BARIANI,Adriana; JESUS-BARROS,Cristiane Ramos; PEREIRA,José Francisco; ADAIME,Ricardo.
ABSTRACT Bactrocera carambolae Drew &amp; Hancock is a quarantine pest present in Brazil and is the main phytosanitary barrier for the export of fresh fruits from that country. In this work, we evaluated the effect of Amazonian isolates of Metarhizium on kill larvae, pupae, and adults of B. carambolae in soil applications. The mortality of larvae and pupae in sterile soil treated with Metarhizium anisopliae was 70 %. In addition, 100 % of the adults that emerged from this substrate died up to five days later. This isolate caused the mortality of larvae and pupae in non-sterile soil, but its effect was more evident after adult emergence (70 % mortality up to ten days after emergence). Metarhizium robertsii was effective in killing larvae and pupae of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Carambola fruit fly; Entomopathogenic fungi; Fruit flies.
Ano: 2019
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2019000100118

Ambient flow velocity and resulting clearance rates of the terebellid polychaete Lanice conchilega (Pallas, 1766)
Provedor de dados: 5
Autores: Denis, L; Desroy, Nicolas; Ropert, Michel.
A laboratory flume study was conducted to determine the effect of flow velocity on clearance rates of the Polychaeta Terebellidea Lanice conchilega (Pallas, 1966). Using sets of 75 individuals collected along the east coast of the English Channel, we measured clearance rates at five flow velocities of approximate to 4, 9, 15, 22 and 27 cm s(-1) with a culture of the diatom Chaetoceros calcitrans as food source. During each control (without polychaetes) or clearance (with Lanice conchilega) experiment, in vivo fluorescence was continuously monitored. Further HPLC analysis confirmed the sediment resuspension for the highest flow velocities tested, indicating the need for 'corrections' from control experiments. The global pattern resulted in a dome-shaped...
Tipo: Text
Palavras-chave: Recirculating flume; Feeding activity; Terebellidea; Polychaetes; Clearance rate; Lanice conchilega.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3418.pdf

Ambient particulate air pollution from vehicles promotes lipid peroxidation and inflammatory responses in rat lung
Provedor de dados: 56
Autores: Pereira,C.E.L.; Heck,T.G.; Saldiva,P.H.N.; Rhoden,C.R.
Oxidative stress plays a major role in the pathogenesis of particle-dependent lung injury. Ambient particle levels from vehicles have not been previously shown to cause oxidative stress to the lungs. The present study was conducted to a) determine whether short-term exposure to ambient levels of particulate air pollution from vehicles elicits inflammatory responses and lipid peroxidation in rat lungs, and b) determine if intermittent short-term exposures (every 4 days) induce some degree of tolerance. Three-month-old male Wistar rats were exposed to ambient particulate matter (PM) from vehicles (N = 30) for 6 or 20 continuous hours, or for intermittent (5 h) periods during 20 h for 4 consecutive days or to filtered air (PM &amp;lt;10 µm; N = 30). Rats...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oxidative stress; Reactive oxygen species; Lipid peroxidation; Particulate air pollution; Lung inflammation; Acute effects.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007001000008

Ambiente y antecedentes de floración en el crecimiento, inducción y desarrollo floral de Laelia anceps subesp. anceps (Orchidaceae)
Provedor de dados: 115
Autores: Sánchez-Vidaña,M. Rosario; Tejeda-Sartorius,Olga; Hernández-Anguiano,A. María; Trejo-Téllez,L. Iris; Soto-Hernández,R. Marcos; Gaytán-Acuña,E. Araceli.
Resumen El manejo de factores ambientales es importante para el control de la inducción floral en orquídeas. Por lo tanto, el objetivo de este estudio fue investigar el efecto de dos ambientes controlados y condiciones de invernadero, así como la influencia del antecedente de floración de plantas de Laelia anceps Lindl. subesp. anceps, de cuatro años de edad, en el crecimiento, inducción e indicadores de desarrollo floral. Los ambientes fueron: 1) ambiente invernadero (AInv) con temperatura promedio de 29/13 °C diurna/nocturna, fotoperiodo natural estimado de 12 h y FFF de 90 μmol.m-2.s-1; 2) ambiente controlado 1 (AC1) con luz de lámparas de aditivos metálicos + lámparas de alta presión de sodio + tubos fluorescentes, con flujo de fotones fotosintéticos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Orchidaceae; Laelia anceps Lindl. subesp. anceps; Fuentes de luz; Ambiente controlado; Fotoperiodo; Intensidad lumínica.
Ano: 2018
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952018000100035

Amblyomma variegatum: um novo carrapato para a América do Sul?
Provedor de dados: 14
Autores: HONER, M. R.
bitstream/item/138776/1/COT-36.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Amblyomma variagatum; America do Sul; Bovine; Deseases; Disease; Parasita; Parasite; Tick.; Bovino; Boophilus Microplus; Animal; Carrapato; Controle Biológico; Doença.; Amblyomma variegatum; Biological control.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1036687

Amblyseius largoensis in controlling red palm mite under semi-field conditions
Provedor de dados: 86
Autores: Morais,Elisangela Gomes Fidelis; Oliveira,Jéssica Silva; Gondim Jr.,Manoel Guedes Corrêa; Moraes,Gilberto José.
Abstract: The objective of this work was to evaluate the efficiency of two Amblyseius largoensis (Acari: Phytoseiidae) populations in controlling Raoiella indica (Acari: Tenuipalpidae). The treatments were: release of A. largoensis from the island of La Réunion; release of A. largoensis from the state of Roraima, Brazil; and a control, without predator release. Initially, 20 predators were released per plant; three other releases were done at a rate of ten adults per plant, at 46, 135, and 156 days after the first release. The population densities were estimated every 20 days, during six months. Both A. largoensis populations evaluated are not sufficiently efficient to control the R. indica population.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Raoiella indica; Biological control; Coconut; Quarantine pest.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000500671

Ambulatory blood pressure and Doppler echocardiographic indexes of borderline hypertensive men presenting an exaggerated blood pressure response during dynamic exercise
Provedor de dados: 56
Autores: Herkenhoff,F.L.; Vasquez,E.C.; Mill,J.G.; Lima,E.G.
Borderline hypertension (BH) has been associated with an exaggerated blood pressure (BP) response during laboratory stressors. However, the incidence of target organ damage in this condition and its relation to BP hyperreactivity is an unsettled issue. Thus, we assessed the Doppler echocardiographic profile of a group of BH men (N = 36) according to office BP measurements with exaggerated BP in the cycloergometric test. A group of normotensive men (NT, N = 36) with a normal BP response during the cycloergometric test was used as control. To assess vascular function and reactivity, all subjects were submitted to the cold pressor test. Before Doppler echocardiography, the BP profile of all subjects was evaluated by 24-h ambulatory BP monitoring. All subjects...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Borderline hypertension; Cardiovascular reactivity; Laboratory stress test; Doppler echocardiography.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001000008

Amebic Liver Abscess in Rat: Morphological Evidence of Innate Immune Modulation by the Sympathetic Nervous System
Provedor de dados: 77
Autores: Muñoz-Ortega,Martín Humberto; Cervantes-García,Daniel; Quintanar-Stephano,Andrés; Campos-Esparza,María del Rosario; García-Lorenzana,Mario; Campos-Rodríguez,R; Rodríguez,M. G; Ventura-Juárez,Javier.
All organs of the immune system are innervated and almost all neurotransmitter receptors are present on immune cells. We studied the effects of sympathetic innervation in the development of amebic liver abscess (ALA) in rats. Our results showed that lack of sympathetic innervation promote a decrease in size of ALA. We found scarce amoebas, increased the number of neutrophils and a few collagen fibers surrounding the abscess, meanwhile in control group, we observed abscesses areas with typical necrosis including trophozoites and neutrophils. Macrophages were differentially distributed surrounding abscess area in control and vehicle groups, but equally located in and outside of the abscesses in sympathectomized rat. No significant differences were observed...
Tipo: Journal article
Palavras-chave: Sympathectomy; Rat; E. histolytica; Amebic liver abscess.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000100034

Amélioration de la production d'Artemia dans les salines tunisiennes par fertilisation minérale : détermination de la dose optimale d'emploi.
Provedor de dados: 20
Autores: Hussenot, J.; Aloui, N.; El Abed, A.
In order to test the fertilization effect on Artemia production, six treatments of a mineral fertilization with di-ammonium phosphate (DAP) and urea (0.25*F; 0.5*F; 0.75*F; 1*F; 1.5*F; 2*F with F = 15 mg/L of DAP and 15 mg/L of urea) were compared to a control unfertilized. After the initial fertilization (day 0), a half a dose was brought once a week. At day 8, Artemia nauplii were inoculated in all tanks  at the rate of 50 nauplii per liter. Physico-chemical and biological parameters of the culture were analysed each week, during the 48 days of experiment. The results showed that the optimal dose is 0.75*F; it gaves the maximal phytoplanctonic biomass expressed by chlorophyll-a has and it allowed to obtain a maximal production of Artemia (cysts and...
Tipo: Journal Contribution
Palavras-chave: Aquaculture; Salts; Brine shrimp culture; Minerals; Aquaculture systems; Artemia culture; Aquaculture; Http://aims.fao.org/aos/agrovoc/c_550.
Ano: 2003
URL: http://hdl.handle.net/1834/1112

Amelioration des conditions de vie des crevettes penaeus monodon  en elevage  semi-intensif par l'application  du produit  epicin (cas de la société AQUAMEN EF Tsangajoly): Aquaculture et controle de qualite
Provedor de dados: 20
Autores: Valerie  Aristide, R.
Presque soixante quinze ans sont écoulés depuis le début de l’élevage moderne des crevettes Pénéides. Jusqu’à maintenant, l’homme ne maîtrise pas encore totalement la conduite de l’élevage. Ce dernier est dû au fait que, il est difficile de reproduire fidèlement le milieu naturel, car il existe des paramètres qu’on ne pourra pas créer ni maîtriser. Mais, pour faire face aux problèmes survenus durant l’élevage, les aquaculteurs tentent toujours de trouver une solution adéquate à chaque problème qu’il rencontre. Dernierèment, ils ont créé un produit issu du milieu naturel pour assurer le nettoyage et le traitement du bassin d’élevage. C’est le produit EPICIN. Ce dernier a été testé dans la ferme de l’AQUAMEN E.F Tsangajoly et les résultats obtenus sont...
Tipo: Theses and Dissertations
Palavras-chave: Growth; Survival; Conversion factors; Penaeus monodon.
Ano: 2007
URL: http://hdl.handle.net/1834/5018

Amélioration génétique expérimentale de la crevette d'élevage de Nouvelle-Calédonie : Sélection d'une population de L. stylirostris résistante à la bactérie pathogène Vibrio penaeicida. Rapport final pour le Ministère de l'Outre-Mer
Provedor de dados: 5
Autores: Goyard, Emmanuel; Goarant, Cyrille; Bachere, Evelyne; De Lorgeril, Julien; Mugnier, Chantal; Ansquer, Dominique; Broutoi, Francis; Brun, Pierre; Imbert, Frederic; Justou, Carole; Maillez, Jean-rene; Patrois, Jacques; Pham, Dominique; Peignon, Jean-marie.
The New-Caledonian shrimp industry is based on the controlled reproduction of the shrimp Litopenaeus stylirostris, a species which was introduced in the 80s. The major difficulty to which the industry has been faced for 10 years is the occurrence of the "syndrome 93", which corresponds to mortality phases when the temperature falls down in April-May-June. This mortality is associated to the pathogenic bacteria Vibrio penaecida and is expressed at different levels which are variable from year ta year and from pond to pond. No resistance to this pathology has been developed spontaneously. This is likely due to the protocole used to rear spawners, which does not allow to implement an efficient selective pressure at each generation  An experimental selection...
Tipo: Text
Palavras-chave: Amélioration génétique; P. styliroslris; Résistance; Syndrome 93; Lyzozyme; Genetic improvement; P. styliroslris; Résistance; Syndrome 93; Lyzozyme.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00109/22020/19643.pdf

Ameliorative Effects of Thymoquinone on Sperm Parameters and Testosterone Level of Nicotine-Treated Sprague Dawley Rats
Provedor de dados: 52
Autores: Rosli,Farah Dayana; Hashim,Noor Hashida; Osman,Khairul; Ibrahim,Siti Fatimah; Kabir,Nurul.
Abstract Thymoquinone (TQ), the main constituent of the volatile oil derived from Nigella sativa has shown pharmacological benefits against various diseases while nicotine is an active component in cigarette that is known to be detrimental. This study was conducted to assess the ameliorating effects of TQ on sperm count, membrane, mitochondria and testosterone of nicotine-treated rats. Rats were randomized into four groups: control, nicotine, TQ, and nicotine with TQ. Nicotine (5 mg/kg bwt/day) was subcutaneously injected for 30 days to induce damaging effects on sperm and testosterone level. Rats were force-fed with TQ (5 mg/kg bwt/day) for the following 30 days. Sperm count was reduced in the nicotine group (26.72 ± 1.64 106/mL) but showed a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thymoquinone; Nicotine; Rat sperm; Membrane; Mitochondria; Testosterone.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100304

Ameliorative potential of Butea monosperma on chronic constriction injury of sciatic nerve induced neuropathic pain in rats
Provedor de dados: 42
Autores: Thiagarajan,Venkata R.K.; Shanmugam,Palanichamy; Krishnan,Uma M.; Muthuraman,Arunachalam; Singh,Nirmal.
The present study was designed to investigate the ameliorative role of ethanolic extract from leaves of Butea monosperma in chronic constriction injury (CCI) of sciatic nerve induced neuropathic pain in rats. Hot plate, acetone drop, paw pressure, Von Frey hair and tail immersion tests were performed to assess the degree of thermal hyperalgesia, cold chemical allodynia, mechanical hyperalgesia &amp;amp; allodynia in the left hind paw and tail thermal hyperalgesia. Further on, thiobarbituric acid reactive substances (TBARS), reduced glutathione (GSH) and total calcium levels were estimated to assess the biochemical changes in the sciatic nerve tissue. Histopathological changes were also observed in the sciatic nerve tissue. Ethanolic extract of Butea...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anti-oxidant; Butea monosperma; Calcium; Chronic constriction injury; Reduced glutathione; Thiobarbituric acid reactive substance.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400023

Ameliorative potential of Vernonia cinerea on chronic constriction injury of sciatic nerve induced neuropathic pain in rats
Provedor de dados: 42
Autores: THIAGARAJAN,VENKATA R.K.; SHANMUGAM,PALANICHAMY; KRISHNAN,UMA M.; MUTHURAMAN,ARUNACHALAM.
The aim of the present study is to investigate the ameliorative potential of ethanolic extract of whole plant of Vernonia cinerea in the chronic constriction injury (CCI) of sciatic nerve induced neuropathic pain in rats. Behavioral parameters such as a hot plate, acetone drop, paw pressure, Von Frey hair and tail immersion tests were performed to assess the degree of thermal, chemical and mechanical hyperalgesia and allodynia. Biochemical changes in sciatic nerve tissue were ruled out by estimating thiobarbituric acid reactive substances (TBARS), reduced glutathione (GSH) and total calcium levels. Ethanolic extract of Vernonia cinerea and pregabalin were administered for 14 consecutive days starting from the day of surgery. CCI of sciatic nerve has been...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Calcium; Chronic constriction injury; Reduced glutathione; Thiobarbituric acid reactive substance.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301435

Amenagement des peches dans les eaux communautaires: potentiel et limites des systemes de licences
Provedor de dados: 5
Autores: Meuriot, Eric; Maucorps, A.
Fishing regulations in waters under the responsibility of the EEC mainly concern three techniques of site development:  - catch quotas by species and by area (TAC, a word adapted from the English Total Allowable Catch); - the definition – of the technical characteristics of the fishing devices used (meshing, type of trawl,...); - setting a minimum commercial size for each species.  The regulations of meshing and other constraints relating to the technical characteristics of the fishing devices aim to modify the composition of the catches by age class.  The TACs are a technique for controlling the level of exploitation of the stocks. Controlling the fishing effort that they generate is carried out indirectly in the short or mid term.  For many years now,...
Tipo: Text
Palavras-chave: SEM.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/rapport-2509.pdf

American visceral leishmaniasis: disease control strategies in dracen microregion in alta paulista, SP, Brazil
Provedor de dados: 80
Autores: D'Andrea,LAZ; Camargo-Neves,VLF; Sampaio,SMP; Kronka,SN; Sartor,IF.
Despite measures adopted to control American visceral leishmaniasis (AVL), the disease is spreading in a fast and worrying way throughout western São Paulo state. The aim of this work was to study the variables involved in the disease cycle as well as the effectiveness of controlling measures. The study was carried out in the microregion of Dracena, which is composed of twelve cities and belongs to Alta Paulista, a region of western São Paulo. The necessary data were provided by the Superintendence for Endemic Disease Control and Adolfo Lutz Institute, Regional Laboratory of Presidente Prudente. From August 2005 to January 2008, the following factors were observed: detection of phlebotomine sandflies in the cities and periods in which dogs or humans were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Visceral leishmaniasis; Seroprevalence; Control strategies; São Paulo; Brazil.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000200012

Ametryn Leaching in Soils from the Sugarcane Region in Northeastern Brazilian
Provedor de dados: 87
Autores: SILVA,K.S.; FREITAS,F.C.L.; BRAGA,D.F.; DOMBROSKI,J.L.D.; SANTOS,A.F.B.
ABSTRACT Ametryn is one of the most widely used herbicides in the sugarcane culture. Little is known about the interactions between this herbicide and the attributes of soils in the sugarcane region of northeastern Brazil. This knowledge, before recommending herbicide, will minimize the negative effects on the environment, particularly on water resources, and will ensure weed control efficacy. In this work, ametryn leaching potential was estimated through bioassays and chromatography, in five soils from the sugarcane region in northeastern Brazil: Quartzarenic Neosol (Entisol); Red Argisol (Ultisol); Ferrihumiluvic Spodosol (Spodosols); Red-Yellow Acrisol (Oxisol) and Haplic Cambisol (Inceptisols). To achieve this, columns were prepared with samples of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Liquid chromatography; Bioassay; Mobility.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400839

Amifostine reduces inflammation and protects against 5-fluorouracil-induced oral mucositis and hyposalivation
Provedor de dados: 56
Autores: Barbosa,S.C.M.; Pereira,V.B.M.; Wong,D.V.T.; Santana,A.P.M.; Lucetti,L.T.; Carvalho,L.L.; Barbosa,C.R.N.; Callado,R.B.; Silva,C.A.A.; Lopes,C.D.H.; Brito,G.A.C.; Alencar,N.M.N.; Lima-Júnior,R.C.P.
Oral mucositis (OM) is a common and dose-limiting side effect of cancer treatment, including 5-fluorouracil (5-FU) and radiotherapy. The efficacy of the therapeutic measures to prevent OM is limited and disease prevention is not fully observable. Amifostine is a cytoprotective agent with a described anti-inflammatory potential. It is clinically used to reduce radiotherapy and chemotherapy-associated xerostomia. This study investigated the protective effect of amifostine on an experimental model of OM. Hamsters were divided into six groups: saline control group (5 mL/kg), mechanical trauma (scratches) of the right cheek pouch; 5-FU (60 and 40 mg/kg, ip, respectively, administered on days 1 and 2); amifostine (12.5, 25, or 50 mg/kg) + 5-FU + scratches....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cancer chemotherapy toxicity; Oral mucositis; 5-Fluorouracil; Amifostine; Cytokines.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000300601

Aminocyclopyrachlor and mesotrione sorption–desorption in municipal sewage sludge-amended soil
Provedor de dados: 53
Autores: Mendes,Kassio Ferreira; Alonso,Felipe Gimenes; Mertens,Tatiane Beatriz; Inoue,Miriam; Oliveira,Marcelo Gomes de; Tornisielo,Valdemar Luiz.
ABSTRACT The application of sewage sludge (SS) in agriculture is a practice used worldwide, and it is commonly applied in sugarcane to supply nutrients, with beneficial effects on crop productivity and soil; but SS can increase sorption and decrease desorption of herbicides. However, in tropical soils such as in Brazil, there are no studies regarding the behavior of pre-emergent herbicides, mainly aminocyclopyrachlor and mesotrione, in SS-amended soil. The aim of the present study was to determine the effect of municipal SS applied in agriculture on the sorption–desorption of aminocyclopyrachlor and mesotrione in clay soil. Aminocyclopyrachlor (pyrimidine-2-14C-aminocyclopyrachlor) and mesotrione (cyclohexane-2-14C-mesotrione) sorption–desorption was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Organic amendments; Tropical soil; Leaching potential; Weak acid.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000100131

Aminocyclopyrachlor: New Option for Trumpet Flower Control in Pastures
Provedor de dados: 87
Autores: REIS,F.C.; CASON,J.B.; TOLEDO,R.E.B.; SOTOMAYOR,J.F.; FREITAS,M.M.; VICTÓRIA FILHO,R.
ABSTRACT The species Tecoma stans, introduced to Brazil to be cultivated in urban centers as street trees, in parks and gardens, became important pasture weed. The mechanical control of this species is difficult because the plant presents a large number of sprouts when are mowed. Furthermore, the herbicides usually used in pasture have been shown to be inefficient to control it. This research evaluated the trumpet flower control effectiveness using a new herbicide (aminocyclopyrachlor) applied alone in increasing doses to the cut stump for the control of resprouts and mixed with metsulfuron-methyl in applications to intact plant leaves. The experiment with foliar applications used increasing doses of herbicides (aminocyclopyrachlor + metsulfuron-methyl)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exotic species; Trumpet flower; Susceptibility to herbicides.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400759

AMMONIA ABATEMENT STRATEGIES IN LIVESTOCK PRODUCTION: A CASE STUDY OF A POULTRY INSTALLATION
Provedor de dados: 31
Autores: Angus,   Andrew J.; Hodge,   Ian D.; Sutton,   M.A.
This study uses a linear programming approach to compare the potential effectiveness of uniform rules (under the Integrated Pollution Prevention and Control Directive) and a landscape-scale based policy for reducing ammonia (NH3) emissions and their related impacts from a case study poultry installation.  The model incorporates a variety of potential NH3 abatement techniques. It also incorporates the first application of a spatial model of the diffusion of environmental impacts from NH3 emissions. This models N deposition at a nearby nature reserve. The model finds that the uniform rules proposed under the Integrated Pollution Prevention and Control Directive are likely to be ineffective in certain contexts and that a landscape-scale approach is more...
Tipo: Working or Discussion Paper
Palavras-chave: Ammonia; Integrated Pollution Prevention and Control; Broiler installations; Environmental Economics and Policy; Livestock Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/31932

Ammonia thiosulfate in Japanese plum tree thinning
Provedor de dados: 94
Autores: Ayub,Ricardo Antonio; Bauchrowitz,Iohann Metzger; Silva,Clandio Medeiros da; Pessenti,Isabela Leticia; Grimaldi,Fernanda; Pereira,André Belmont.
Abstract  In order to test the use of ammonia thiosulfate (ATS) in the chemical thinning of the Japanese plum tree, a field experiment was conducted throughout the 2015/2016 and 2016/2017 crop growing seasons at Ponta Grossa, PR, Brazil. The experimental design adopted herein was a randomized block design (RBD). During the 2015/2016 season, the trial was comprised of two accesses and six treatments, such as T1 (control); T2 (ATS 4%); T3 (ATS 5%); T4 (ATS 6%); T5 (ATS 7%) and T6 (manual thinning) with four replications. During the 2016/2017 season, solely one plum tree access was taken into account along with six treatments, such as T1 (control); T2 (ATS 6%); T3 (ATS 7%); T4 (ATS 8%); T5 (ATS 9%) and T6 (manual thinning) and four replications. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prunus salicina; Flowering; Chemical; Floração; Químico.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000500702

Ammonia volatilisation from urease inhibitor-treated urea applied to sugarcane trash blankets
Provedor de dados: 63
Autores: Cantarella,Heitor; Trivelin,Paulo Cesar Ocheuze; Contin,Teodoro Leonardo Michelucci; Dias,Fábio Luis Ferreira; Rossetto,Raffaella; Marcelino,Rafael; Coimbra,Renato Badran; Quaggio,José Antonio.
Legal restrictions from burning sugarcane prior to harvest are causing a sharp increase in acreage which is harvested as green cane. The presence of a thick sugarcane trash mulch left after harvest makes it difficult to incorporate fertilisers in the soil. Since large losses of ammonia may occur when urea is surface applied to trash, it is important to find ways to improve urea-N use efficiency. The urease inhibitor NBPT slows down urea hydrolysis and thus may help decrease ammonia losses. Ammonia traps were set up in seven sugarcane fields covered with trash and fertilised with ammonium sulfate or ammonium nitrate, urea, and NBPT-treated urea. All N fertilisers were surface-applied at rates of 80 or 100 kg N ha-1. Very little N was lost when ammonium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: NBPT; Nitrogen fertilizer; Ammonia losses.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000400011

Ammonia volatilization and yield components after application of polymer-coated urea to maize
Provedor de dados: 90
Autores: Zavaschi,Eduardo; Faria,Letícia de Abreu; Vitti,Godofredo Cesar; Nascimento,Carlos Antonio da Costa; Moura,Thiago Augusto de; Vale,Diego Wyllyam do; Mendes,Fernanda Latanze; Kamogawa,Marcos Yassuo.
A form of increasing the efficiency of N fertilizer is by coating urea with polymers to reduce ammonia volatilization. The aim of this study was to evaluate the effect of polymer-coated urea on the control of ammonia volatilization, yield and nutritional characteristics of maize. The experiment was carried out during one maize growing cycle in 2009/10 on a Geric Ferralsol, inUberlândia, MG, Brazil. Nitrogen fertilizers were applied as topdressing on the soil surface in the following urea treatments: polymer-coated urea at rates of 45, 67.5 and 90 kg ha-1 N and one control treatment (no N), in randomized blocks with four replications. Nitrogen application had a favorable effect on N concentrations in leaves and grains, Soil Plant Analysis Development (SPAD)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen; Polymer-coated urea; N fertilizer; Ammonia volatilization; Zea mays; SPAD reading.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400016

Ammonia volatilization from enhanced-efficiency urea on no-till maize in brazilian cerrado with improved soil fertility
Provedor de dados: 64
Autores: Cancellier,Eduardo Lopes; Silva,Douglas Ramos Guelfi; Faquin,Valdemar; Gonçalves,Bruno de Almeida; Cancellier,Leandro Lopes; Spehar,Carlos Roberto.
ABSTRACT High nitrogen losses by ammonia volatilization are expected when urea is used as the source of N. The use of controlled-release urea and urease inhibitors are possible strategies to reduce such losses and increase nitrogen use efficiency. This study aimed to evaluate nitrogen losses by ammonia volatilization from stabilized, slow and controlled release urea and its absorption by maize grown under no-till in an improved Cerrado soil. Four N sources were used: conventional urea, urea + N-(n-butyl) thiophosphoric triamide (NBPT), urea + Cu and B and urea coated by sulfur + polymers. These N sources were surface applied along the rows using three N doses of 100, 150 and 200 kg ha-1. No N was added to the control. Data were collected regarding N losses...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen fertilizers; NH3-N losses; Polymer sulfur coated urea; Urease inhibitors; Zea mays L.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000200133

Ammonia volatilization from nitrogen fertilizers applied to sugarcane straw
Provedor de dados: 124
Autores: Otto,Rafael; Zavaschi,Eduardo; Souza Netto,Gerson José Marquesi de; Machado,Bianca de Almeida; Mira,Acácio Bezerra de.
ABSTRACT Maintenance of crop residues over soil surface under conservational systems limits incorporation of nitrogen fertilizers into the soil. Application of urea over crop residues enhance N-NH3 volatilization losses, justifying the usage of urease inhibitors or N sources less susceptible to volatilization under such conditions. This study aimed to evaluate volatilization losses from N sources applied over sugarcane straw. A field trial was carried out in a sugarcane field in Iracemapolis, Sao Paulo on a Typic Kandiudox in June 2014. We used a complete block experimental design, with seven treatments and four replications. Treatments included Control [CO], ammonium nitrate [AN], NS30TM (ammonium nitrate-75% and ammonium sulfate-25% fused mixture)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Urea; NBPT; NS 30 TM; Green cane.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000300413

Ammonia Volatilization from Soil-Applied Organic Fertilizers
Provedor de dados: 90
Autores: Rocha,Adriano Alvim; Araújo,Ednaldo da Silva; Santos,Silvio da Silva; Goulart,Jhonatan Marins; Espindola,José Antonio Azevedo; Guerra,José Guilherme Marinho; Alves,Bruno José Rodrigues; Rouws,Janaina Ribeiro Costa.
ABSTRACT: A reliable quantification of nitrogen (N) losses by ammonia (NH3) volatilization can contribute to identifying optimized strategies of fertilizer management. The objective of this study was to quantify ammonia volatilization from several organic N sources incorporated into or applied onto the soil surface. Two cultivation areas, under snap bean and corn, were evaluated at Embrapa Agrobiology, Seropédica, Rio de Janeiro (RJ). Both experiments used a randomized complete block design in split-plots, with four replications. The main plots consisted of four organic fertilizers (castor bean cake, bokashi, legume fertilizers, cattle manure), at rates of 200 kg ha-1 N, and a control treatment (without fertilization), and the subplots corresponded to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: NH3 volatilization; Organic fertilization; Nitrogen dynamics.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100518

Ammonia volatilization in no-till system in the south-central region of the State of Paraná, Brazil
Provedor de dados: 90
Autores: Fontoura,Sandra Mara Vieira; Bayer,Cimélio.
Ammonia (NH3) volatilization can reduce the efficiency of urea applied to the surface of no-till (NT) soils. Thus, the objectives of this study were to evaluate the magnitude of NH3 losses from surface-applied urea and to determine if this loss justifies the urea incorporation in soil or its substitution for other N sources under the subtropical climatic conditions of South-Central region of Paraná State, Brazil. The experiment, performed over four harvesting seasons in a clayey Hapludox followed a randomized block design with four replicates. A single dose of N (150 kg ha-1) to V5 growth stage of corn cultivated under NT system was applied and seven treatments were evaluated, including surface-applied urea, ammonium sulfate, ammonium nitrate, urea with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen fertilizer; Urea; Corn; Urease.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500020

Ammonia volatilization of urea in the out-of-season corn
Provedor de dados: 90
Autores: Pereira,Hamilton Seron; Leão,Anabelisa Ferreira; Verginassi,Adriana; Carneiro,Marco Aurélio Carbone.
The aim of this study was to evaluate the N losses due to volatilization at different rates of common urea, polymer coated urea and urease inhibitor-treated urea in the out-of-season corn, using semi-open static collectors. The treatments consisted of N levels on side-dressing fertilization with urea in different treatments: (a) control (without N), (b) urea 40 kg ha-1 N, (c) urea 80 kg ha-1 N, (d) polymer coated urea 40 kg ha-1 N, (e) polymer coated urea 80 kg ha-1 N and (f) urea with the urease inhibitor (UI) N 80 kg ha-1 N. The results showed that the treatments with polymer coated urea and with urease inhibitor-treated urea reduced the volatilization of N around 50 % compared to common urea, either in the first and the second N side-dressing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen; Nitrogen fertilization; Slow release.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000600017

Ammonium chloride as an alternative source of nitrogen for sugarcane during two consecutive cycles
Provedor de dados: 86
Autores: Megda,Michele Xavier Vieira; Mariano,Eduardo; Leite,José Marcos; Megda,Marcio Mahmoud; Trivelin,Paulo Cesar Ocheuze.
Abstract: The objective of this work was to evaluate the effect of the application of ammonium chloride as a nitrogen source for sugarcane (Saccharum sp.) on the development of the crop’s shoot and roots during two consecutive cycles. The experiment was conducted on a Typic Hapludox in the first and second sugarcane ratoons. The treatments consisted of four N doses (50, 100, 150, and 200 kg ha-1) applied as ammonium chloride (NH4Cl), besides a control, without the application of N. The increase in the NH4Cl dose increased in up to three times soil electrical conductivity in the layer of 0.0-0.2 m, with a consequent increase in the concentration of chlorine in leaves. In the second cycle, the contents of chlorine increased in 1,900 mg kg-1 in the leaf with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum; Electrical conductivity; Nitrogen fertilization; Root system; Stalk productivity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102100

Ammonium chloride as nitrogen source in sugarcane harvested without burning
Provedor de dados: 90
Autores: Vieira,Michele Xavier; Trivelin,Paulo Cesar Ocheuze; Franco,Henrique Coutinho Junqueira; Otto,Rafael; Faroni,Carlos Eduardo.
The great difficulty of incorporation of N fertilizers into the "green sugarcane" system causes concern and since urea is the most commonly used source, there is the risk of loosing NH3 through volatilization. For this reason, a field experiment was undertaken (in a Hapludox Typic) with the objective of evaluating the agronomic efficiency of ammonium chloride on stubble of the second ratoon (SP89 1115), as well as its residual effect on the subsequent cycle (third ratoon). The experimental design was randomized blocks with four replications. Treatments consisted of three N rates (60, 120 and 180 kg ha-1 N) in the form of NH4Cl, in addition to a control treatment without the addition of N fertilizer. The ratoon cane of the second cutting was harvested in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum spp; Nitrogen fertilization; Ratoon cane.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000400016

Ammonium Glufosinate Associated with Post-Emergence Herbicides in Corn with the cp4-epsps and Pat Genes
Provedor de dados: 87
Autores: KRENCHINSKI,F.H.; CESCO,V.J.S.; CASTRO,E.B.; CARBONARI,C.A.; VELINI,E.D.
ABSTRACT: With the possibility of using ammonium glufosinate in corn, studies on its association with other herbicides are essential. The aim of this study was to assess weed control and herbicide selectivity in association with ammonium glufosinate in corn containing the pat and cp4-epsps genes. The experiment was carried out under field conditions in two sites in a randomized block design with four replications. Treatments consisted of ammonium glufosinate, glyphosate, ammonium glufosinate + glyphosate, ammonium glufosinate + nicosulfuron, ammonium glufosinate + atrazine, ammonium glufosinate + tembotrione, ammonium glufosinate + mesotrione, ammonium glufosinate + carfentrazone ethyl, ammonium glufosinate + bentazon, ammonium glufosinate + 2,4-D, control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ammonia accumulation; Phosphinothricin; Electron transport rate; Herbicide resistance; Zea mays.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100241

Amniotic fluid amino acid levels in non-immune hydrops fetalis: a case-control study
Provedor de dados: 56
Autores: Erdemoğlu,M.; Kuyumcuoglu,U.; Guzel,A.I.; Celik,Y.; Kale,E.
In a prospective case-control study, we compared the amniotic fluid amino acid levels in non-immune hydrops fetalis (NIHF) and normal fetuses. Eighty fetuses underwent amniocentesis for different reasons at the prenatal diagnosis unit of the Department of Obstetrics and Gynecology, Faculty of Medicine, Dicle University. Forty of these fetuses were diagnosed with NIHF. The study included 40 women each in the NIHF (mean age: 27.69 ± 4.56 years) and control (27.52 ± 5.49 years) groups, who had abnormal double- or triple-screening test values with normal fetuses with gestational ages of 23.26 ± 1.98 and 23.68 ± 1.49 weeks at the time of sample collection, respectively. Amniotic fluid amino acid concentrations (intra-assay variation: 2.26-7.85%; interassay...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Non-immune hydrops fetalis; Amniotic fluid; Amino acid levels.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000700018

Amoco-Cadiz : Informations sur la contamination des espèces exploitées
Provedor de dados: 5
Autores: Michel, Pierre; Abarnou, Alain.
This report is a statement of the analytical results obtained in the control of the exploited species three months after the AMOCO CADIZ ran aground on the coast of Brittany. Different samples have been studied, among these : algae, crustaceans (Maïa squinado and Cancer pagurus). twenty species of fish, and molluscs (Ostrea edulis. Crassostrea gigas. Mytilus edulis) Algae have been heavily contaminated but are partically available for algi­nate industry. Molluscs are not presently edible within the whole polluted area. Fishes and crustaceans are less polluted.
Tipo: Text
Palavras-chave: Pollution marine; Analyse; Hydrocarbures; Marine pollution; Analysis; Hydrocarbons.
Ano: 1978
URL: http://archimer.ifremer.fr/doc/00306/41724/40935.pdf

Amostragem das pragas do algodoeiro com auxilio de ficha pictografica.
Provedor de dados: 14
Autores: BLEICHER, E.; JESUS, F. M. M. de; GILES, J. A.
A ficha pctografica; Implantacao do metodo.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Controle; Ficha pictografica; Alabama argillecea; Pectinophora gossypiela; Brasil; Condado; Paraiba; Pest; Control.; Ácaro Vermelho; Amostragem; Algodão; Aphis Gossypii; Curuquerê; Gargaphia Torresi; Gossypium Hirsutum; Lagarta Rosada; Mosquito; Praga; Tetranychus Ludeni.; Cotton; Sampling.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262646

&amp;#8220;Disfibrinogenemia Jujuy&amp;#8221;, alteración asociada a trastornos hemorrágicos
Provedor de dados: 38
Autores: Lauricella,Ana María; Sittinger,Katja; Geisen,Christof; Kordich,Lucía Clelia.
El objetivo del presente trabajo fue estudiar a una joven paciente con manifestaciones hemorrágicas, caracterizar su fibrina plasmática e identificar la posible alteración molecular del fibrinógeno de la paciente y sus familiares directos. Se diagnosticó una disfibrinogenemia en la paciente, su madre y el medio-hermano, ambos asintomáticos. En estos individuos, la formación y lisis de la fibrina plasmática difirieron de los controles. La fase lag prolongada indicó la liberación lenta y defectuosa de los fibrinopéptidos; la pendiente menor que la del control sugirió una polimerización dificultada. La DOMax inferior mostró una fibrina compuesta por fibras delgadas. La fibrinolisis inducida por estreptoquinasa resultó más rápida que la correspondiente...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Disfibrinogenemia; Ensayos de coagulación; Fibrinoformación; Fibrinolisis.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572016000200006

Ampfer erfolgreich kontrollieren
Provedor de dados: 21
Autores: Finze, Jana; Böhm, Herwart.
Ampfer breitet sich im ökologisch bewirtschafteten Grünland zunehmend aus. Das Institut für ökologischen Landbau der Bundesforschungsanstalt für Landwirtschaft in Trenthorst führte daher im Rahmen eines Projektes des Bundesprogramms Ökologischer Landbau Versuche zur Regulierung von Ampfer im Grünland durch (Direkte Kontrolle mittels manuellem Ampferstechen, maschinellem Ampferstechen mit der Wurzelziehmaschine WUZI und Abflammen jeweils mit und ohne Nachsaat sowie Auswirkungen des Beweidungsmanagements) und befragte bundesweit 156 ökologisch wirtschaftende Landwirte. Die Umfrage zeigte, dass fast die Hälfte der Betriebe Probleme mit Ampfer im Grünland haben, bei weiteren zwanzig Prozent sind diese Probleme sogar besonders gravierend. Jeder Betrieb hat auf...
Tipo: Journal paper
Palavras-chave: Pasture and forage crops; Weed management.
Ano: 2004
URL: http://orgprints.org/3520/1/Ampfer%2DBioland01%2D04.pdf

Ampfer- und Distelbekämpfung im Ökolandbau
Provedor de dados: 21
Autores: Böhm, Herwart; Verschwele, Arnd.
Perennierende Unkräuter wie die Ampfer-Arten oder die Acker-Kratzdistel stellen im Ökologischen Landbau immer noch ein großes Problem dar. Im Rahmen des Bundesprogramms Ökologischer Landbau wurde daher in einem Verbundvorhaben der FAL und der BBA verschiedene Fragestellungen zu dieser Thematik bearbeitet:   Eine bundesweite Umfrage von über 150 ökologisch wirtschaftenden Landwirten ergab , dass derzeit ca. 30 % der Ackerflächen mit der Acker-Kratzdistel (Cirsium arvense) verunkrautet sind Die meisten Landwirte (n=140) haben sowohl Probleme mit C. arvense als auch mit Rumex spp. und/oder Agropyron repens, 96 von ihnen klagten sogar über extreme Schwierigkeiten mit diesen ausdauernden Unkrautarten.  Sowohl in der Umfrage als auch in den Untersuchungen auf...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Pasture and forage crops Weed management.
Ano: 2004
URL: http://orgprints.org/4166/1/Wurzel%2DSH273.pdf

Ampfer- und Distelbekämpfung im Ökologischen Landbau
Provedor de dados: 21
Autores: Böhm, Herwart; Verschwele, Arnd.
Perennial weeds like Rumex spp. and Cirsium arvense are still difficult to control in organic farming systems. The presented results were part of a cooperative project within the Federal Organic Farming Scheme (BÖL) dealing with the control of perennial weeds. Aim of the project was to evaluate present strategies for controlling perennial weeds in organically managed farms and to determine new recommendations. A nation-wide survey of over 150 organic farmers in Germany showed, that ca. 30 % of the arable land is infested with the Canadian thistle (Cirsium arvense). Most of the farmers (n=140) have problems with C. arvense as well as Rumex spp. and/or Agropyron repens. The impact of soil tillage and crop rotation on controlling C. arvense in organic farming...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2004
URL: http://orgprints.org/8747/1/07_B%C3%B6hm_fertig.pdf

Ampferkontrolle mittels Heissdampfinjektion
Provedor de dados: 21
Autores: Latsch, Roy; Sauter, Joachim; Kaeser, Alexandra.
A control method for broad-leaved dock (Rumex obtusifolius) with hot steam was tested in grasslands in Switzerland. More than 700 plants were treated with a mixture of hot water and steam at a temperature of 120°C and a pressure of 30 bar. The aim was to identify an optimum heating time, so that the plant mortality rate was more than 80 %. The necessary diesel and water consumption for the heating were measured.   The success of the method is strongly related to the soil moisture. The results show, that the intended mortality rate of 80 % at a soil moisture of 30 % can be realized at a calculated heating time of 30 seconds. For this treatment 2.4 litre of water and 0.046 litre of diesel were needed.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop husbandry; Weed management.
Ano: 2011
URL: http://orgprints.org/17768/3/Latsch_17768.pdf

Amplitude no fósforo microbiano em um Argissolo em pastagem nativa submetida à roçada e à introdução de espécies forrageiras com fertilização fosfatada em diferentes épocas - DOI: 10.4025/actasciagron.v30i4.5319
Provedor de dados: 1
Autores: Santos, Danilo Rheinheimer; UFSM; Martinazzo, Rosane; UFRGS; Gatiboni, Luciano Colpo; UDESC; Kaminski, João; UFSM; Silva, Leandro Souza da; UFSM.
Em solos com elevado grau de intemperismo, a imobilização temporária de fósforo pela biomassa microbiana do solo (BMS) pode ser um mecanismo de retardamento das reações de adsorção. O objetivo do presente trabalho foi avaliar a amplitude no fósforo microbiano (Pm) em um Argissolo em pastagem nativa submetida à roçada, introdução de forrageiras exóticas e adubadas com fertilizantes fosfatados. O estudo foi desenvolvido a partir de um experimento instalado em 1997 que constava de cinco tratamentos de fosfato e calagem (testemunha sem fósforo; hiperfosfato de gafsa; superfosfato triplo; superfosfato triplo + calcário e superfosfato simples + calcário), distribuídos em quatro blocos ao acaso. Em junho de 2002, a pastagem nativa remanescente foi roçada, semeada...
Palavras-chave: 5.01.00.00-9    Agronomia biomassa microbiana; Imobilização; Adubos fosfatados; Pastagens nativas; Disponibilidade de fósforo. microbial biomass; Immobilization; Phosphate fertilizers; Natural pasture; Phosphorus availability.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5319

Amylin induces hypoglycemia in mice
Provedor de dados: 42
Autores: Guerreiro,Luiz H.; Silva,Daniel DA; Sola-Penna,Mauro; Mizurini,Daniella M.; Lima,Luís M.T.R.
Amylin is a 37-aminoacid pancreatic protein that exerts control over several metabolic events such as glycemia and lacticemia. Amylin has long been shown to induce increases in arterial plasma glucose. We decided to investigate whether amylin plays additional roles in the glucose metabolism. We evaluated glucose homeostasis using whole blood from the tail tip of fasting, conscious, unrestrained normal and streptozotocyn-induced diabetic mice following subcutaneous administration of mouse amylin. Subcutaneous injection of 1 μg mouse amylin caused a transient decrease in whole blood glucose in both normal and diabetic mice in the absence of insulin. The blood glucose levels were lowest approximately 2 hours after amylin administration, after that they...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amylin; Islet associated polypeptide; Glycemia; Diabetes; Mice; Hypoglycemia.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100349

Amylomyces rouxii Strain CBS 438.76 Affects Cholesterol Metabolism in Cholesterol-Fed Rats
Provedor de dados: 19
Autores: FUKUSHIMA, Michihiro; HAN, Kyu-Ho; TANEICHI, Yae; IIJIMA, Setsuko; SHIMADA, Ken-ichiro; SAITOH, Katsuichi; ODA, Yuji; CHIJI, Hideyuki; SEKIKAWA, Mitsuo; 福島, 道広; 韓, 圭鎬; 島田, 謙一郎; 小田, 有二; 関川, 三男.
We examined the effects of Amylomyces rouxii, which is a mold found in some fermented foods in Indonesia, on serum cholesterol and hepatic LDL receptor mRNA in rats. Rats were fed a 0.5% cholesterol-enriched diet with (A. rouxii group) or without (control group) 30g/kg A. rouxii for 4 wk. There were no significant differences in the body weight, food intake or liver weight among the groups. However, the weight of the cecum in the A. rouxii-fed group was significantly higher than that in the control group. The cecal pH in the A. rouxii-fed group was significantly lower than that in the control group. Cecal acetic acid, propionic acid and total SCFA concentrations in the A. rouxii-fed group were significantly higher than those in the control group. The serum...
Palavras-chave: Rats; Amylomyces rouxii strain CBS 438.76; Cholesterol; Cholesterol 7α-hydroxylase mRNA; LDL receptor mRNA.
Ano: 2005
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2911

An active role of systemic fungicides to curb wheat powdery mildew caused by Blumeria graminis f. sp. tritici
Provedor de dados: 111
Autores: Esmail, Samar Mohamed; Draz, Ibrahim Sobhy.
Efficacy of five systemic fungicides (flusilazole, propiconazole, diniconazole, cyproconazole and tetraconazol) in curbing powdery mildew disease of wheat (Sakha93) and its impact on yield components were evaluated under field condition during two successive season. Both fungicides, propiconazole and diniconazole exhibited the highest value of efficacy (88.80% each) recording the lowest rate of disease infection (1 each). The contrast was noticed with tetraconazol (55.50% efficacy, 4 disease infection) with significant differences to untreated control during both seasons. The results of fungicide application reflected on yield components where 1000-kernel and 1000-ml weights recorded the highest values with propiconazole (49.03 g and 742.65 g) followed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wheat; Powdery mildew; Fungicide activity; Blumeria graminis f. sp. tritici; SEM examination.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4716

AN ADAPTIVE CONTROL APPROACH TO AGRICULTURAL POLICY
Provedor de dados: 31
Autores: Freebairn,   John W.; Rausser,   Gordon C.
It is postulated that some issues of economic policy in general, and of Australian agricultural policy in particular, may be analysed in the framework of an adaptive control model. Policy making is characterized as a rational, sequential decision-making process under conditions of imperfect knowledge in which forthcoming information may be used to learn about the uncertain terms as decision periods pass. Emphasis is given to the linear-quadratic control problem. The paper provides a review of the formulation of a policy problem in the framework of an adaptive control model and of derived policy strategies. An illustrative example is reported.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1974
URL: http://purl.umn.edu/22890

An alkaline single-cell gel electrophoresis (comet) assay for environmental biomonitoring with native rodents
Provedor de dados: 74
Autores: Silva,Juliana da; Freitas,Thales R.O. de; Marinho,Jorge R.; Speit,Günter; Erdtmann,Bernardo.
The main advantages of single-cell gel electrophoresis (SCG) are its applicability to any eukaryotic organism and cell type, its low cost and the short time required to obtain results. These properties make the SCG assay particularly useful in screening for environmental genotoxicity. The present study describes a modified version of this technique for use in field work with native rodents and examines some factors which influence the outcome of the assay. Wild rodents (Ctenomys torquatus, "tuco-tuco") from a region close to a strip coal mine and from a region with no coal mines were used. Animals from the coal mining region had significantly more DNA damage than those from the control area. The use of this SCG technique for direct sampling in the field...
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000100042

AN ALTERNATIVE APPROACH TO THE EVALUATION OF GOAL HIERARCHIES AMONG FARMERS
Provedor de dados: 31
Autores: van Kooten,   G. Cornelis; Schoney,   Richard A.; Hayward,   Keith A.
Results of a study of goal orderings of Saskatchewan farmers who participate in the province's FARMLAB Program are presented.  We use the method of fuzzy pair-wise comparisons which allows the respondent to indicate a degree of preference between two alternative goal statements, thereby providing more information than in the binary case.  From survey data ratio-scale scores are constructed for eight goal statements, and these are regressed on a set of farm enterprise and household characteristics and a psychological locus-of-control (or I-E) score.  The empirical results indicate that goodness-of-fit measures are better than those obtained by other researchers, perhaps because a psychological measure (I-E score) is included as an explanatory variable for...
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1986
URL: http://purl.umn.edu/32535

An Analysis of Alternatives to the Dairy Price Support Program
Provedor de dados: 31
Autores: Kaiser,   Harry M.
The U.S. dairy industry has operated under a price support program since 1949. Between 1949 and 1980, the dairy price support program generally operated without incurring large government costs and was an effective price stabilizer. However, since 1980, the dairy industry has experienced chronic excess production relative to consumption and consequently government purchases under the price support program have been excessively large (particularly in the mid-1980s). The tremendous increase in government costs of the dairy price support program and a growing dissatisfaction with the program by farmers has prompted proposals to modify or replace this program. This paper examines the potential market impacts of five different dairy policy scenarios. The five...
Tipo: Technical Report
Palavras-chave: Agricultural and Food Policy; Livestock Production/Industries.
Ano: 1993
URL: http://purl.umn.edu/123016

An analysis of factors affecting the adoption of economic and productive data recording methods of Chilean farmers
Provedor de dados: 118
Autores: Engler,Alejandra; Toledo,Roger.
Integration of the Chilean domestic economy into international markets has created the need to incorporate more technology, information, and management tools and to generate better entrepreneurial skills at the farm level. These changes require the development of strategic capabilities and farmer changes in attitude. The goal for farmers is to be more prepared for the decision-making process and to have adequate evaluation and control systems to face the complexity of the farm business. The literature suggests that using management tools positively correlates with profits and concludes that management skills are positively related to farmers' well-being. Survey information on 211 farmers from central and southern Chile was used to estímate a probit model...
Tipo: Journal article
Palavras-chave: Record-keeping; Management skills; Probability models.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000200010

An analysis of factors contributing to the use of an income equalisation deposit scheme by commercial farmers in South Africa
Provedor de dados: 31
Autores: Lishman,   J.-L.; Nieuwoudt,   W. Lieb.
Recent research suggests that an Income Equalisation Deposit (IED) scheme could be a feasible new risk management tool for commercial farmers in South Africa. This prompted a study of practicing consultants’ (tax experts) views on determining what types of farmers would be likely to use the scheme. During 2000, a postal survey of 24 consultants was conducted mainly in KwaZulu-Natal, and in the Maize Triangle and surrounding areas. Each consultant was to review nine scenarios (eight plus a control, giving 192 observations) and decide whether they would recommend an IED scheme for each scenario. A statistical experimental design was used to structure the scenarios, allowing for main and interaction effects between variables that could influence the potential...
Tipo: Journal Article
Palavras-chave: Agricultural Finance.
Ano: 2003
URL: http://purl.umn.edu/9501

AN ANALYSIS OF POLICY ALTERNATIVES TO THE DAIRY PRICE SUPPORT PROGRAM
Provedor de dados: 31
Autores: Kaiser,   Harry M.
This paper investigates the impacts of alternative federal dairy policies on the U.S. dairy sector.  In addition to the current dairy price support program, five alternatives are investigated: (1) immediate deregulation, (2) gradual deregulation, (3) target price-deficiency payment program without supply control, (4) target price-deficiency payment program with supply control, and (5) mandatory supply control.  An econometric model of the national dairy industry is used to simulate quarterly equilibrium price and quantity values at the farm and wholesale levels for each policy over the period 1980-90.  Consumers are better off under both immediate and gradual deregulation, as well as the target price-deficiency payment scenarios because prices are lower,...
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1994
URL: http://purl.umn.edu/31440

An Analysis of Rank Ordered Data
Provedor de dados: 31
Autores: Paudel,   Krishna P.; Poudel,   Biswo N.; Dunn,   Michael A.; Pandit,   Mahesh.
Many methods are available to analyze rank ordered data. We used a spectral density method to analyze Formosan subterranean termite control options ranked by Louisiana homeowners. Respondents are asked to rank termite control options from the most preferred to the least preferred option. Spectral analysis results indicated that the most preferred termite control choice is a relatively cheap ($0.13 per square foot) option of liquid treatment.
Tipo: Conference Paper or Presentation
Palavras-chave: FST; Rank ordered data; Spectral analysis; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/49518

AN ANALYSIS OF SELECTED PERFORMANCE INDICATORS FOR U.S. AGRIBUSINESS SITES REGISTERED TO ISO 9000 SERIES OF STANDARDS
Provedor de dados: 31
Autores: Mumma,   Gerald A.; Allen,   Albert J.; Couvillion,   Warren C.
A factor analysis examined underlying relationships of selected performance indicators for U.S. ISO 9000-registered agribusiness sites. The factoring technique uniquely identified five of six primary factors-namely, improved quality performance, better training of personnel and document control, product prices, external audits, and cost of nonconformity. A sixth ill-defined factor is also identified. Each identified factor could influence the market position and/or profitability of an ISO 9000 registered agribusiness site.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 2000
URL: http://purl.umn.edu/27409

AN ANALYSIS OF SITUATION, STRUCTURE, CONDUCT AND PERFORMANCE IN AIR EMISSION AND WATERSHED EFFLUENT MARKETS
Provedor de dados: 31
Autores: Norris,   Patricia E.; Brown,   Elaine M.; Batie,   Sandra S.
After much debate and many legislative proposals, the Clean Air Act was amended in 1990 to allow more flexibility in meeting emissions standards for SO2. Specifically, an SO2 emissions allowance trading program was implemented.  Firms can meet emission standards by any pollution control method, including buying emission allowances from other firms. Analysts have concluded that, with the changes in the Clean Air Act, SO2 emissions have been reduced by 50 percent and at an estimated $7 billion less than the anticipated cost of the regulatory command-and-control system.   Not surprisingly, policy analysts have explored the opportunities for implementing similar market-based systems for water pollution control.  Because much of the on-going impairment of...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/11798

AN ANALYSIS OF STRUCTURES IMPLEMENTED TO RESOLVE LAND USE CONFLICT AND OVERSTOCKING BY MASAI PASTORALISTS IN KAJIADO DISTRICT, KENYA
Provedor de dados: 31
Autores: Laker-Ojok,   Rita.
This paper evaluates two recently implemented strategies to control land use conflict and overgrazing in Kajiado district of southern Kenya, stressing the importance of analyzing attempts to alter traditional pastoralist production systems in terms of the "complex ethno-ecological mosaic in which political power allocates access to strategic resources".  A situation, structure, performance paradigm is applied to the problem. Factors central to the situation which underlie the issue of overgrazing are grounded in the ecological and historical context.  Highly unpredictable rainfall, repeated drought, and an increasingly constricted resource base form the primary constraints of the Masai production system.  In response, complex cultural adaptations and herd...
Tipo: Thesis or Dissertation
Palavras-chave: Land Economics/Use.
Ano: 1980
URL: http://purl.umn.edu/11021

An Analysis of the Effects of the Immigration Reform and Control Act of 1986 (IRCA) on Seasonal Agricultural Service (SAS) Crops in New York State
Provedor de dados: 31
Autores: Figueroa,   Enrique E.
Tipo: Working Paper
Palavras-chave: Crop Production/Industries; Labor and Human Capital.
Ano: 1993
URL: http://purl.umn.edu/121329

An ancient compound rediscovered: perspectives of aphid control in organic hop growing by the use of quassia products
Provedor de dados: 21
Autores: Weihrauch, Florian; Eckert, Markus; Engelhard, Bernhard.
In the first three decades of the 20th century, quassia extract was widely used in hop growing as a chemical agent to control Phorodon humuli and other insect pests. In the first years of the 21st century this compound was rediscovered by German organic hop growers. In nine efficacy trials conducted in five field seasons, quassia products proved to be effective control agents for P. humuli in organically grown aroma cultivars. As the best method of application a systemic variant was developed by painting a suspension of quassia extract to the bines. This method proved not only to be very effective but was also best from an environmental point of view as sprayed quassia extracts had side effects on non-target organisms. As an optimal systemic application...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Breeding; Genetics and propagation.
Ano: 2007
URL: http://orgprints.org/15348/1/Weihrauch%2Detal%2D2007%2DIHGC_p105%2D108.pdf

An animal experimental study of porous magnesium scaffold degradation and osteogenesis
Provedor de dados: 56
Autores: Liu,Y.J.; Yang,Z.Y.; Tan,L.L.; Li,H.; Zhang,Y.Z.
Our objective was to observe the biodegradable and osteogenic properties of magnesium scaffolding under in vivo conditions. Twelve 6-month-old male New Zealand white rabbits were randomly divided into two groups. The chosen operation site was the femoral condyle on the right side. The experimental group was implanted with porous magnesium scaffolds, while the control group was implanted with hydroxyapatite scaffolds. X-ray and blood tests, which included serum magnesium, alanine aminotransferase (ALT), creatinine (CREA), and blood urea nitrogen (BUN) were performed serially at 1, 2, and 3 weeks, and 1, 2, and 3 months. All rabbits were killed 3 months postoperatively, and the heart, kidney, spleen, and liver were analyzed with hematoxylin and eosin (HE)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodegradable; Osteogenic; Magnesium scaffold.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000800715

An Anthropometry Study of the Shoulder Region in a Chinese Population and its Correlation with Shoulder Disease
Provedor de dados: 77
Autores: Yu,Ming-Yang; Zhang,Wei; Zhang,De-Bao; Zhang,Xiao-Dong; Gu,Gui-Shan.
Purpose: There is a paucity of data which reflected the relationship between morphology and incidence of shoulder disorders with respect to the ethnic Chinese population. We used anteroposterior radiographs to measure the Acromion Index (AI) and Acromioglenoid Angle (AA) of Chinese patients. The baseline was defined as the line that connected the superior and inferior osseous margins of the glenoid cavity. In order to calculate the AI, the distance from the baseline to the lateral margin of the acromion was measured and then divided by the distance from the baseline to the lateral aspect of the humeral head. The AA was defined as the angle formed by the intersecting line drawn tangent to the sclerotic line of the acromion undersurface and the baseline...
Tipo: Journal article
Palavras-chave: Acromioglenoid angle; Acromion index; Chinese population; Rotator cuff Injuries; Acromial Tilt.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200020

An Assessment of Economic Losses due to Avian Flu in Manipur State
Provedor de dados: 31
Autores: Kumar,   B. Ganesh; Joshi,   P.K.; Datta,   K.K.; Singh,   S.B.
The impact of 2007 outbreak of avian flu in the state of Manipur has been reported. The loss due to the disease has been found to be 14 per cent of the total value of livestock outputs in the entire state. More than 3 lakh birds were culled and 24 tonnes of poultry feed was destroyed post-flu. It has been found that the more affected were the producers and the input industry than traders and retailers. In dealing with such eventualities, compensation should be adequate and timely so as to ensure better compliance for effective control and stamping out of the disease. The study has suggested that the compensation rates may be fixed as per the prevailing economic condition of less-developed states like in the North-Eastern region, taking into consideration...
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/47358

AN ASSESSMENT OF HAY MARKET INSTITUTIONS AND COORDINATION FUNCTIONS
Provedor de dados: 31
Autores: Miller,   Jeffrey H.
The experience of Michigan farmers illustrates the dilemma faced by hay growers:  while hay production has received a great deal of attention, hay marketing has been neglected.  Supplies of high quality hay can be expanded within the span of a single growing season, but the marketing system generates prices which do not always clear the market and which do not serve as accurate signals to guide planning decisions.  More fundamentally, there are no effective market mechanisms to generate those prices, to match buyers and sellers, or to move hay cheaply from surplus to deficit regions.  Clearly, this is not because hay is a minor crop.  In Michigan, hay is the second largest crop grown on a per acre basis.  Apart from the direct economic value of hay, it has...
Tipo: Thesis or Dissertation
Palavras-chave: Marketing.
Ano: 1986
URL: http://purl.umn.edu/11061

An assessment of seagrass survival and functioning in response to manipulations in sediment redox at Nyali Lagoon, Kenya
Provedor de dados: 20
Autores: Gwada, P.
Thalassodendron ciliatum was studied during two monsoon cycles of the year 2001/2002 to determine the interactive effects of experimentally elevated redox potentials on in situ plant structure and shoot-root (S/R) biomass allocation patterns. Thalassodendron plants from shallow back-reef tidal pools were substrate manipulated under ambient field conditions for 90 days on each monsoon cycle. Plant sampling was done from quadrats impacted with organic substrates at three different concentrations (proxies to induce differential redox potentials). Our data show clear differences (at ANOVA, p &lt; 0.05) in Eh and plant traits from 2 treatment effects and from monsoon seasonality effects. Thalassodendron had relatively higher canopy cover, shoot density, shoot...
Tipo: Report
Palavras-chave: Production; Monsoon Cycle; Organic Substrates; Redoxconditions; Sediment Rhizosphere; Shoot-Root (S/R) Ratio; Thalassodendron ciliutum; Kenya. Biomass Sediments Seagrass Biomass http://aims.fao.org/aos/agrovoc/c_926.
Ano: 2004
URL: http://hdl.handle.net/1834/1284

An attempt to evaluate the recent management regulations of the east Atlantic and Mediterranean bluefin tuna stock through a simple simulation model
Provedor de dados: 5
Autores: Fromentin, Jean-marc.
This manuscript proposes a simple simulation model to investigate the implications to the resources of the recent management regulations adopted for the East Atlantic and Mediterranean bluefin tuna stock. If perfectly implemented, the new regulations on minimum size and closed fishing areas mostly lead to a change in the selectivity pattern which moves towards older fish, so decreasing growth-overfishing. The potential sustainable yields therefore considerably increase (almost double in comparison to those that would be obtained without the new regulations) while the SSB can rapidly reach 20% of the virgin SSB. An error of 20% in the implementation of these new regulations affects their efficiencies and does not seem to allow the rebuilding of the SSB at a...
Tipo: Text
Palavras-chave: Bluefin tuna; Management regulations; Stock rebuilding; Simulation model.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00192/30297/28787.pdf

An automated vacuum extraction control system for soil water percolation samplers
Provedor de dados: 18
Autores: Lentz, R.D.; Kincaid, D.C.
Tipo: Article
Palavras-chave: Percolation sampler; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2003
URL: http://eprints.nwisrl.ars.usda.gov/147/1/1089.pdf

An Autoradiogram of Skeletal Muscle from a Pig Raised on a Farm within 20 km of the Fukushima Daiichi Nuclear Power Plant
Provedor de dados: 19
Autores: YAMAGUCHI, Toshiro; SAWANO, Kaita; FURUHAMA, Kazuhisa; MORI, Chizuo; YAMADA, Kazutaka; 山田, 一孝.
We utilized autoradiography to visualize radioactive contamination in the skeletal muscles of a pig raised within 20 km of the Fukushima Daiichi nuclear power plant following the nuclear accident. The autoradiogram of control muscle showed relatively homogenous exposure. In contrast, the autoradiogram of affected muscle showed a heterogeneous and sporadically dense imaging pattern. Photo luminescence densities of the affected and control muscles were 3.89 ± 0.67 and 2.13 ± 0.43 PSL/mm2, respectively. This difference indicated that radioactive cesium was distributed in the skeletal muscle of the affected pig.
Palavras-chave: Autoradiography; Cesium; Potassium; Radioactive contamination.
Ano: 2013
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3900

An early-life hypoxia event has a long-term impact on protein digestion and growth in European sea bass juvenile.
Provedor de dados: 5
Autores: Zambonino, Jose-luis; Mazurais, David; Dubuc, Alexia; Queau, Pierre; Vanderplancke, Gwenaelle; Servili, Arianna; Cahu, Chantal; Le Bayon, Nicolas; Huelvan, Christine; Claireaux, Guy.
Ocean warming, eutrophication and consequent decrease in oxygen lead to smaller average fish size. Although such responses are well-known in an evolutionary context, involving multiple generations, it appears to be incompatible with current rapid environmental change. Rather, phenotypic plasticity could provide a means for marine fish to cope with rapid environmental changes. However, little is known about the mechanisms underlying plastic responses to environmental conditions that favour small phenotypes.  Our aim was to investigate how and why European sea bass that had experienced a short episode of moderate hypoxia during their larval stage subsequently exhibited a growth depression at the juvenile stage compared to the control group.  We examined...
Tipo: Text
Palavras-chave: Climate change; Digestive enzymes; Dicentrarchus labrax; Growth; Hypoxia; Respirometry.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00373/48407/48635.pdf

AN ECONOMETRIC ANALYSIS FOR THE EVALUATION OF RISK OF NON-COMPLIANCES IN TURKEY
Provedor de dados: 21
Autores: Zanoli, Raffaele; Gambelli, Danilo; Bruschi, Viola.
In this paper we analyse the data from inspections of two European control bodies in Turkish farms to analyse risk pattern of non-compliance with the EU organic regulation.   A logit model is used to identify the types of crops the are more likely related to non-compliant operators.
Tipo: Conference paper, poster, etc.
Palavras-chave: Regulation.
Ano: 2014
URL: http://orgprints.org/23793/1/23793%20IFOAM%202014_TK_rtevised%2010_02_14_MM.pdf

An Econometric Analysis of U.S. Crop Yield and Cropland Acreage: Implications for the Impact of Climate Change
Provedor de dados: 31
Autores: Huang,   Haixiao; Khanna,   Madhu.
A SIGNIFICANTLY REVISED/UPDATED AND EDITED VERSION OF THIS PAPER WAS PUBLISHED AS:  Citation: Miao, Ruiqing, Madhu Khanna and Haixiao Huang. “Responsiveness of Crop Yield and Acreage to Prices and Climate.” American Journal of Agricultural Economics (2015) doi: 10.1093/ajae/aav025   Abstract: We investigate the effect of crop price and climate variables on rainfed corn and soybean yields and acreage in the United States using a large panel dataset for the 1977–2007 period. Instrumental variables are used to control for endogeneity of prices in yield and acreage regressions, while allowing for spatially auto-correlated errors. We find that an increase in corn price has a statistically significant positive impact on corn yield, but the effect of soybean...
Tipo: Conference Paper or Presentation
Palavras-chave: Crop yield response; Crop acreage response; Climate change; Econometric analysis; US county-level panel data; Agricultural and Food Policy; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/61527

AN ECONOMETRIC EVALUATION OF STABILIZATION POLICIES FOR THE U.S. GRAIN MARKET
Provedor de dados: 31
Autores: Arzac,   Enrique R.
This paper evaluates stabilization policies by applying methods of stochastic control and dynamic analysis to an econometric model of the U.S. grain market. Its main results are: (1) the aggregate consumer and producer surplus generated by the model is insensitive to the choice of the market regime; (2) policies directed to stabilize prices at levels compatible with nondecreasing farm revenue require the management of both grain inventories and domestic supply; (3) price fluctuations are significantly less under optimal stabilization than in the unregulated version of the model; and (4) historical policies have destabilizing effects on the market model.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1979
URL: http://purl.umn.edu/32430

An Economic Analysis of Carbon Sequestration for Wheat and Grain Sorghum Production in Kansas
Provedor de dados: 31
Autores: Aller,   Taryn D.; Williams,   Jeffery R.; Nelson,   Richard G.; Claassen,   Mark M.; Rice,   Charles W.
This study examined the economic potential with and without carbon credit payments of two crop and tillage systems in South Central Kansas that could reduce carbon dioxide emissions and sequester carbon in the soil. Experiment station cropping practices, yield data, and soil carbon data for continuously cropped wheat and grain sorghum produced with conventional tillage and no-tillage from1986 to 1995 were used to determine soil carbon changes and to develop enterprise budgets to determine expected net returns for a typical dryland farm in South Central Kansas. No-till had lower net returns because of lower yields and higher overall costs. Both crops produced under no-till had higher annual soil C gains than under conventional tillage. Carbon credit...
Tipo: Working or Discussion Paper
Palavras-chave: Carbon credit value; Carbon sequestration; Grain sorghum; No-tillage; Wheat; Crop Production/Industries.
Ano: 2001
URL: http://purl.umn.edu/117991

AN ECONOMIC ANALYSIS OF COCA ERADICATION POLICY IN COLOMBIA
Provedor de dados: 31
Autores: Moreno-Sanchez,   Rocio del Pilar; Kraybill,   David S.; Thompson,   Stanley R.
We estimate an econometric model of coca production in Colombia.  Our results indicate that coca eradication is an ineffective means of supply control as farmers compensate by cultivating the crop more extensively. The evidence further suggests that incentives to produce legal substitute crops may have greater supply-reducing potential than eradication.
Tipo: Conference Paper or Presentation
Palavras-chave: Political Economy.
Ano: 2002
URL: http://purl.umn.edu/19833

An Economic Analysis of Control of the Western Corn Rootworm Variant across Indiana
Provedor de dados: 31
Autores: van Mellor,   Thuy; Alexander,   Corinne E.; Bledsoe,   Larry; Krupke,   Christian.
A variant of the western corn rootworm (CRW) has adapted to the widely used cultural practice of crop rotation. This study analyzed the economic value of control options controlling the western CRW variant across Indiana. The options analyzed are soil insecticides, seed-applied insecticides, the recently commercialized genetically modified corn to resist CRW (CRW corn), or not controlling the western CRW variant. The results suggest that the economic value of CRW corn may exceed that of the alternative options for corn producers with high western CRW variant pressure, irrespective of producers'’ risk aversion levels and have the highest economic value for risk-averse producers in the moderate western CRW variant pressure region of Indiana.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/21264

AN ECONOMIC ANALYSIS OF CORN ROOTWORM MANAGEMENT: AREAWIDE PEST MANAGEMENT VERSUS SOIL INSECTICIDES- A NET PRESENT VALUE APPROACH
Provedor de dados: 31
Autores: Stair,   Christina Welch; Quan,   Peter; Martin,   Marshall A.
In 1996, the USDA initiated research in three Midwestern locations to control corn rootworms with a scouting and aerial spraying program. The preliminary economic results suggest that without a modest subsidy, an areawide pest management approach is not as economical as the use of soil insecticides
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/21884

An economic analysis of farm forestry as a means of controlling dryland salinity
Provedor de dados: 31
Autores: Cacho,   Oscar J.; Greiner,   Romy; Fulloon,   Lachlan.
Large areas of agricultural land under conventional crops and pastures are at risk of dryland salinisation in Australia. The salinisation problem can be controlled by strategic and large‐scale planting of trees; however, farm forestry enterprises evaluated with conventional discounting techniques do not generally rank as an attractive alternative to annual crops on productive land. In this article, an optimal control model that explicitly accounts for decline or improvement in land quality over a period of 40 years is presented. The optimal area planted to trees and the optimal groundwater‐table trajectory through time are determined under a variety of scenarios. Implications of the results for policy design are discussed.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/117391

AN ECONOMIC ANALYSIS OF OZONE CONTROL IN CALIFORNIA'S SAN JOAQUIN VALLEY
Provedor de dados: 31
Autores: Kim,   Hong Jin; Helfand,   Gloria E.; Howitt,   Richard E.
This study estimates the benefits to agricultural and human health of reducing ozone in the San Joaquin Valley of California, and the costs of ozone control. The San Joaquin Valley's highly valued crops suffer from high ozone levels. Federal and state primary ozone standards are based on health effects, not effects on other sectors, and do not consider costs of attaining the standards. The methods here allow comparison of both total and marginal benefits and costs. The results suggest that net gains can be achieved for the entire valley by reducing ozone below 1990 levels, although results vary by region.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1998
URL: http://purl.umn.edu/31169

AN ECONOMIC ANALYSIS OF SEDIMENT CONTROL AT CONSTRUCTION SITES: THE CASE OF GREENVILLE COUNTY, SOUTH CAROLINA
Provedor de dados: 31
Autores: Lowdermilk,   Jamey M.; Templeton,   Scott R.; Privette,   Charles V., III; Hayes,   John C.
Soil erosion from construction sites can cause sedimentation of nearby water bodies. Mandatory sediment controls can reduce sedimentation. What determines the degree to which sediment controls meet regulatory standards for installation and maintenance? A conditional-multinomial logit model is estimated with data from 85 construction sites that were audited in 2001 or 2005 in Greenville County, SC to determine whether 147 sediment ponds or traps were installed correctly, properly maintained, or both. Sixty two percent of ponds and traps were installed incorrectly, maintained improperly, or both. Costs of clean out negatively affect the probability that a sediment pond or trap is properly maintained. Construction site distance from the county‘s regulatory...
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/103976

An Economic Analysis of Soil Erosion Control and Low-Input Agriculture
Provedor de dados: 31
Autores: Diebel,   Penelope L.; Taylor,   Daniel B.; Batie,   Sandra S.; Heatwole,   Conrad D.
The Chesapeake Bay is a major water resource whose quality has been threatened by soil erosion and agrichemical contamination. The control of agricultural pollution of the Bay is one of the focal points of the 1987 Chesapeake Bay agreement formed by four states in the Bay's watershed (Virginia, Maryland, Pennsylvania, and the District of Columbia). Among the suggested solutions is the promotion of low-input agricultural practices. However, some low-input practices also include frequent cultivations of the soil for non-chemical weed control practices, which may induce erosion. This analysis uses a case study approach to determine agricultural practice selection and potential erosion under different soil erosion constraints. A multi-period mathematical...
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1992
URL: http://purl.umn.edu/118171

An economic approach to collective management of endemic animal diseases
Provedor de dados: 31
Autores: Rat-Aspert,   Olivier; Krebs,   Stephane.
The control of animal diseases is an issue of particular interest in animal production chains. Because of their direct impact on production, animal diseases generate income shortfalls for farmers. In some cases, diseases may also have lead to human health problems and undermine market access conditions. Because of these potential negative impacts, some diseases are regulated. But for many communicable diseases, much latitude is given to individual control of the disease by farmers. In the case of a communicable disease, individual management therefore generates an externality, as individual decisions have an impact on the level of risk exposure of other farms to the disease. Thus, the collective result of individual management may differ from the...
Tipo: Conference Paper or Presentation
Palavras-chave: Animal health economics - Micro modelling – Bio-economic modelling - endemic animal diseases; Animal health economics; Micro modelling; Bio-economic modelling; Endemic animal diseases; Livestock Production/Industries.
Ano: 2011
URL: http://purl.umn.edu/114791

An Economic Evaluation of a Pest Management Control Program: "Outfox the Fox"
Provedor de dados: 31
Autores: Jones,   Randall E.; Saunders,   Glen; Balogh,   Suzy.
Foxes are regarded as a serious pest of environmental and grazing systems in Australia. The fox is a recognised predator of native wildlife and has been a significant contributor to the population decline of many native mammal, bird and reptile species. There are also claims that foxes may account for up to 30% of lamb mortalities in some areas, while mortality due to predation of 2 to 5% is more likely in most regions. The ‘Outfox the Fox’ program was established by NSW Agriculture in conjunction with a number of Rural Land Protection Boards to achieve a more strategic and coordinated fox baiting program. This program relies on a community driven and integrated management approach to the problem. The main features are to synchronise baiting across...
Tipo: Report
Palavras-chave: Benefit cost analysis; Research evaluation; Economic surplus; Fox; Farm Management; Land Economics/Use; Livestock Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q160.
Ano: 2005
URL: http://purl.umn.edu/42653

AN ECONOMIC EVALUATION OF SOYBEAN STINK BUG CONTROL ALTERNATIVES FOR THE SOUTHEASTERN UNITED STATES
Provedor de dados: 31
Autores: Chyen,   David; Wetzstein,   Michael E.; McPherson,   Robert M.; Givan,   William D.
Methyl parathion or Penncap M (an encapsulated methyl parathion) are used extensively throughout the United States for controlling stink bug pests in soybeans, Glycine Max (L.) Merrill.  However, this insecticide is highly toxic to mammals, birds, and non-target arthropods, and thus is less environmentally sound than other insecticides.  For environmental and human health considerations, investigating alternative insecticides for control is desired.  For this investigation, research based on field experimental data from Florida, Georgia, and Louisiana during the 1988 and 1989 growing seasons were employed.  Results indicate that alternative, currently available, and less toxic insecticides may reduce producer costs, increase yield, and improve soybean...
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1992
URL: http://purl.umn.edu/29640

AN ECONOMIC EVALUATION OF THE COLORADO RIVER BASIN SALINITY CONTROL PROGRAM
Provedor de dados: 31
Autores: Gardner,   Richard L.; Young,   Robert A.
Dissolved salts (salinity) adversely affect numerous urban and agricultural users of Colorado River water in California and Arizona.  Congress in 1974 authorized a major salinity control program.  Studies of general economic benefits from salinity abatement and the cost per unit of salinity reduction expected from specific proposed projects have been developed by the responsible federal agencies, but no project-by-project evaluation has been published. We find a conceptual basis for a substantial downward revision of prospective economic benefits of salinity abatement.  Revised benefits are compared with estimated costs, and only for five of the nineteen projects do economic benefits appear to exceed costs.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1985
URL: http://purl.umn.edu/32511

An Economic Evaluation of the Footrot Eradication Program in the New England Region of New South Wales
Provedor de dados: 31
Autores: Carmody,   M.J.; Hardaker,   J. Brian; Powell,   Roy A.; Everett,   R.E.
An assessment is presented of the costs and benefits of a scheme in the New England region of New South Wales for the control of footrot in sheep. An ex post evaluation is presented of the operation of the scheme since its inception in 1960 to the present, and also an ex ante appraisal is made of the proposed continuation of the scheme in the future. Data were collected from the implementing agencies and from samples of sheep farmers in the target area and in another area where the disease is endemic. Some coefficients not otherwise available were estimated by a panel of experts by use of a Delphi procedure. Net benefits from the scheme were estimated directly as producers' surpluses less administrative costs, assuming no effects on output prices....
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries.
Ano: 1984
URL: http://purl.umn.edu/12340

An Economic Impact Assessment of Bovine Tuberculosis in South West England
Provedor de dados: 31
Autores: Sheppard,   Andrew; Turner,   Martin M.
In England, over the last decade the rising incidence of bovine TB has resulted in recognised economic impacts on the agricultural and ancillary industries. Nowhere has the dramatic increase in bovine TB been more evident than in Southwest England, a region which is characterised by smaller, family-run farms often specialising in relatively extensive bovine livestock systems, whether dairying or beef production. The economic impacts result from the nature of the disease, the government's control measures (restrictions on movement of cattle on and off the farm, repeat testing and compulsory cleaning) and the impact of test 'failures' on the normal marketing of livestock and product.   Moreover, this worsening of the disease situation - and hence increasing...
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/31748

AN ECONOMIC IMPACT EVALUATION OF GOVERNMENT PROGRAMS: THE CASE OF BRUCELLOSIS CONTROL IN THE UNITED STATES
Provedor de dados: 31
Autores: Liu,   Chun-Ian.
Tipo: Journal Article
Palavras-chave: Public Economics.
Ano: 1979
URL: http://purl.umn.edu/29533

AN ECONOMIC RESPONSE MODEL OF HERBICIDE APPLICATION FOR WEED CONTROL
Provedor de dados: 31
Autores: Pannell,   David J.
A biologically realistic model of crop yield response to herbicide application is presented. It includes functions for weed mortality from herbicide application and yield loss due to surviving weeds. The optimal herbicide rate and two types of decision thresholds are derived theoretically and illustrated with empirical examples. Responses of the various decision criteria to changes in parameters are also examined theoretically and empirically. A multidimensional threshold for weeds based on weed density and weed-free yield is presented. The issue of farmers using other than officially recommended herbicide rates is discussed.
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1990
URL: http://purl.umn.edu/22352

AN ECONOMIC THRESHOLD FOR TICK CONTROL CONSIDERING MULTIPLE DAMAGES AND PROBABILITY-BASED DAMAGE FUNCTIONS
Provedor de dados: 31
Autores: Young,   Douglas L.; Haantuba,   Hyde H.
The economic threshold for thick infestations on Zambian cattle was analyzed considering both direct production losses and mortality from transmitted diseases. Probability theory applied to mortality risks was used to derive the functional form for disease damage. With only noninfectious ticks, the economic threshold based on liveweight gain losses was three ticks per calf. The threshold recommended dipping calves whenever any disease-infectious ticks were present. Similar threshold results held for cows when considering milk production and disease mortality losses. If disease control benefits are omitted, as in some past work, thresholds will be overstated and dipping recommendations understated when infectious ticks are present.
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/31204

AN ECONOMIC TOOL FOR EVALUATING DISEASE MANAGEMENT IN THE JARRAH FORESTS OF WESTERN AUSTRALIA
Provedor de dados: 31
Autores: Dole,   David D.; Brennan,   Paul.
A pathogenic, soil-borne fungus has been gradually spreading through the jarrah forest of Western Australia for most of this century. On some sites this fungus can cause almost total forest destruction. Infection is incurable and the effects are irreversible. This paper develops a means for evaluating disease control measures and identifying the optimal level of protection. Standard protection measures are warranted for high and moderate impact sites, over a wide range of risks. Increased expenditure on forest protection is warranted for high and moderate impact sites at especially high risk.
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/22369

An Economic-Psychological Model of Sustainable Food Consumption
Provedor de dados: 31
Autores: Lombardini,   Chiara; Lankoski,   Leena.
This paper proposes a novel economic-psychological model of individual food consumption and food waste that recognizes individuals as social and moral beings who are boundedly rational and have limited capacity for self-control. The model identifies five components of individuals’ utility that correspond to five modes of being or selves: the hedonic agent, the social agent, the moral agent, the health-conscious agent and the habits-driven agent. In the model, individuals maximize this composite utility given their budget and effort constraints. We apply the model to analyze policies that can support the adoption of sustainable food consumption practices.
Tipo: Conference Paper or Presentation
Palavras-chave: Bounded rationality; Bounded self-control; Habits; Identity; Social and moral norms; Sustainable food consumption; Food Consumption/Nutrition/Food Safety; D03; D11; D12.
Ano: 2011
URL: http://purl.umn.edu/114403

An efficient system for in vitro propagation of Bouchea fluminensis (Vell.) Mold. (Verbenaceae)
Provedor de dados: 39
Autores: Resende,Cristiano Ferrara de; Braga,Virgínia Fernandes; Silva,Cristiane Jovelina da; Pereira,Paula da Fonseca; Ribeiro,Cleberson; Salimena,Fátima Regina Gonçalves; Peixoto,Paulo Henrique Pereira.
This study aimed to establish and propagate in vitro plants of Bouchea fluminensis, a medicinal species known in Brazil as gervão-falso ("false verbena"), evaluating the influences of different growth regulators on in vitro multiplication and rooting stages, as well as examining ex vitro acclimatization of rooted plants. Explants were established on Murashige and Skoog medium at half strength of salts and vitamins without growth regulators. For multiplication, the explants were subjected to combinations of 6-benzyladenine (BA; 0, 2.5, 5.0 and 7.5 µM) and α-naphthalene-acetic acid (NAA; 0, 0.2, 0.4 and 0.6 µM). The medium found to induce the greatest number of shoot was that containing 5 µM of BA (NAA-free). For rooting, we evaluated three auxins (NAA,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Micropropagation; Biodiversity conservation; Espinhaço Mountain Range.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000200005

An Efficient Watermarking Scheme for Medical Data Security With the Aid of Neural Network
Provedor de dados: 52
Autores: Kalaivani,K.
ABSTRACT Digital watermarking has emerged as major technique for ensuring security for various types of data like medical data, digital copyright protection, transaction tracing and so on. With the advancement in digital data distribution over the network there has been increase in the need for protection of such data from unauthorized copying or usages. Watermarking helps in providing the security to some extent. Robustness against any sort of unauthenticated attack is the major requirement of watermarking. In this paper we proposed an efficient watermarking technique for medical data security with the aid of neural network. Usage of neural network is generally used to create and control watermarking strength automatically. This method provides better...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digital Watermarking; Medical data security; HVS Model; Discrete Wavelet Transform; Neural network.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000300406

An electromechanical implement lift system with position control for  low horse power tractor
Provedor de dados: 111
Autores: Raheman, Hifjur.
An electromechanical implement lift system comprising of two lower links, one top link, two lift rods, one connecting rod and power screw mechanism fitted on a frame was developed with position control to replace the commonly used hydraulic system for implement lifting requiring higher power. The prototype was tested as per IS: 12224-1987 for recommended load of 150 kg on test frame and satisfactory results were found. The response time for lifting a load of maximum lifting capacity on test frame i.e. 116 kg and 110 kg for entire lifting range was found to be 71 s and 20.7 s for single start screw and triple start screw, respectively as compared to 44.7 s and 13.3 s for lowering the loads. The position control of the system was also tested and found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Farm Machinery &amp; Power Implement lifting system; Electromechanical; Position control; ACME screw and nut; Single start screw; Triple start screw.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2996

An empirical analysis of consumer awareness and trust in organic food legislation in Croatia
Provedor de dados: 21
Autores: Brčić-Stipčević, Vesna; Petljak, Kristina.
The results of the research conducted in March 2009 on a representative sample of the citizens of the Republic of Croatia using a highly structured survey questionnaire in households have shown that the majority of the respondents (76.6%) are familiar with organic food. In the survey, special emphasis is put on the purchase of organic food, especially among regular buyers.  Methods:  Regular buyers were asked about their familiarity with the information on the organic food declaration and their trust in the reliability of the information on the organic food declaration. Furthermore, research explored respondents' familiarity with the label organic product of Croatia according to frequency of organic food purchase. Also, research explored consumer trust in...
Tipo: Journal paper
Palavras-chave: Values; Standards and certification Consumer issues Country reports.
Ano: 2012
URL: http://orgprints.org/22434/7/22434.pdf

An Empirical Analysis of the Demand for Wholesale Pork Primals: Seasonality and Structural Change
Provedor de dados: 31
Autores: Parcell,   Joseph L.
This study focuses on estimating wholesale pork primal demand relationships in order to determine their own-quantity flexibilities, whether these flexibilities have changed over time, and seasonal price fluctuations. A set of equations for pork loin, rib, butt, ham, pork belly, and picnic primals was estimated. Monthly data over an 11-year period were used to determine that own-quantity flexibilities varied across months, that they increased in absolute value over time for some primal cuts, and cold-storage stocks were used as an inventory control measure to reduce price variation for some primal cuts.
Tipo: Journal Article
Palavras-chave: Seasonality; Structural change; Wholesale pork primals; Demand and Price Analysis.
Ano: 2003
URL: http://purl.umn.edu/31102

An entomological surveillance system based on open spatial information for participative dengue control
Provedor de dados: 42
Autores: Regis,Leda; Souza,Wayner V.; Furtado,André F.; Fonseca,Cláudio D.; Silveira Jr.,José C.; Ribeiro Jr.,Paulo J.; Melo-Santos,Maria Alice V.; Carvalho,Marilia S.; Monteiro,Antonio M.V.
Aedes aegypti is a very efficient disseminator of human pathogens. This condition is the result of evolutionary adaptations to frequent haematophagy, as well as to the colonization of countless types of habitats associated with environmental and cultural factors that favor the proliferation of this mosquito in urban ecosystems. Studies using sensitive methods of monitoring demonstrate that the methods of surveillance used in the Brazilian program do not show the high degrees of the infestation of cities by this vector. To increase the capacity of the health sector, new tools are needed to the practice of surveillance, which incorporate aspects of the vector, place and human population. We describe here the SMCP-Aedes - Monitoring System and Population...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dengue vector; Entomological surveillance; Ovitraps; GIS; Vector control.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000400004

An environmentally relevant mixture of polychlorinated biphenyls (PCBs) and polybrominated diphenylethers (PBDEs) disrupts mitochondrial function, lipid metabolism and neurotransmission in the brain of exposed zebrafish and their unexposed F2 offspring
Provedor de dados: 5
Autores: Blanc, Mélanie; Alfonso, Sebastien; Bégout, Marie-laure; Barrachina, Célia; Hyötyläinen, Tuulia; Keiter, Steffen H.; Cousin, Xavier.
Polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) are persistent organic pollutants still present in aquatic environments despite their total or partial ban. Previously, we observed that an environmentally realistic mixture of these compounds affects energy balance, growth, and reproduction in exposed zebrafish (F0), and behavior in their unexposed offspring (F1-F4). In the present work, we performed lipidomic and transcriptomic analyses on brains of zebrafish (F0-F2) from exposed and control lineages to identify molecular changes that could explain the observed phenotypes. The use of both technologies highlighted that F0 zebrafish displayed impaired mitochondrial function and lipid metabolism regulation (depletion in...
Tipo: Text
Palavras-chave: Danio rerio; Persistent-organic pollutant; Neurotoxicity; Brain metabolism; RNA-Seq.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00646/75797/76720.pdf

AN EQUILIBRIUM ANALYSIS OF ANTIBIOTICS USE AND REPLANTING DECISIONS IN APPLE PRODUCTION
Provedor de dados: 31
Autores: Roosen,   Jutta; Hennessy,   David A.
Antibiotics are used in fruit production to control fire blight, a bacterial disease of fruit trees that causes yield losses and eventually tree death.  Fearing the development of widespread antibiotic resistance, scientists and public health officials are becoming increasingly concerned about antibiotics use in agriculture.  A framework is developed for assessing the impacts of changes in tree damage risk following a ban on antibiotics use in the apple industry.  Allowing for entry and exit, a long-run analysis of replanting dates and equilibrium prices is provided, as well as an estimate of the welfare impacts of a ban on antibiotics.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 2001
URL: http://purl.umn.edu/31042

An evaluation by rat colon anastomosis of the efficacy of fibrin glue derived from snake venom
Provedor de dados: 79
Autores: LEITE,C.V.S.; NARESSE,L.E.; ARANTES,H.L.; LOPES,A.F.; THOMAZINI-SANTOS,I.A.; GIANNINI,M.J.S; MERCADANTE,M.C.; BARRAVIERA,B.; KOBAYASI,S.
The objective of this study was to evaluate the efficacy of fibrin adhesive made up of snake venom and bubaline fibrinogen by rat colon anastomosis. Eighty rats were randomly assigned into 2 experimental groups: GI control (anastomosis with extramucous interrupted suture) and GII (repair suture + fibrin glue). The animals were studied at the following 4 times: T0 – preoperative, T1 – 7th day postoperative, T2 – 14th day postoperative, and T3 – 21 st day postoperative. The macroscopic characteristics of the intestinal segment open and closed anastomosis and the bursting strength of the anastomosed segments were observed at each of the above times. The results showed that the anastomosed segments coapted and there was no difference in the bursting strength...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fibrin glue; Experimental healing; Bursting strength; Experimental anastomosis; Snake venom; Colon anastomosis.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79302000000200004

An Evaluation of Feral Cat Management Options Using a Decision Analysis Network
Provedor de dados: 7
Autores: Loyd, Kerrie Anne T.; University of Georgia; kloyd@uga.edu; DeVore, Jayna L.; University of Georgia; jdevore@uga.edu.
The feral domestic cat (Felis catus) is a predatory invasive species with documented negative effects on native wildlife.  The issue of appropriate and acceptable feral cat management is a matter of contentious debate in cities and states across the United States due to concerns for wildlife conservation, cat welfare, and public health. Common management strategies include: Trap-Neuter-Release, Trap-Neuter-Release with removal of kittens for adoption and Trap-Euthanize. Very little empirical evidence exists relevant to the efficacy of alternative options and a model-based approach is needed to predict population response and extend calculations to impact on wildlife. We have created a structured decision support model representing multiple stakeholder...
Tipo: Peer-Reviewed Reports
Palavras-chave: Decision analysis network; Feral cat management; Lethal control; Trap-Neuter-Release; Wildlife conservation.
Ano: 2010

An evaluation of Mg/Ca, Sr/Ca, and Ba/Ca ratios as environmental proxies in aragonite bivalve shells
Provedor de dados: 5
Autores: Poulain, C.; Gillikin, D. P.; Thebault, Julien; Munaron, Jean-marie; Bohn, M; Robert, Rene; Paulet, Yves-marie; Lorrain, Anne.
The influence of salinity and water chemistry on Mg/Ca, Sr/Ca and Ba/Ca ratios in the aragonitic shells of the Manila clam were investigated. Clams were reared at constant temperature (20 °C) under different controlled conditions of salinity, commonly encountered in their natural habitat. Clams were held in three tanks with a constant salinity of 35 for the first 35 days and then two tanks were changed to lower salinities (20 and 28) for the next 29 days. Individual shell Mg/Ca, Sr/Ca and Ba/Ca ratios were studied through time. Despite stable conditions (temperature, salinity, and Mg/Cawater) for clams reared at salinity 35 during the experiment, Mg/Ca shell ratios increased through the time. Moreover the salinity decrease at t35 slowed the increase of...
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Aragonite; Sclerochronology; Bivalved mollusk; Trace element; Proxy.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00245/35649/34158.pdf

An evaluation of multi-annual management strategies for ICES roundfish stocks
Provedor de dados: 5
Autores: Kell, L; Pilling, G; Kirkwood, G; Pastoors, M; Mesnil, Benoit; Korsbrekke, K; Abaunza, P; Aps, R; Biseau, Alain; Kunzlik, P; Needle, C; Roel, B; Ulrich, Clara.
Current scientific management objectives for ICES roundfish stocks are to ensure conservation of the biological resource and do not explicitly consider economic or social objectives. For example, there are currently no objectives to maximize the sustainable yield or to reduce variability in total allowable catches (TACs). This is despite the fact that the current system can result in wide annual fluctuations in TAC, limiting the ability of the fishing industry to plan for the future. Therefore, this study evaluated management strategies that stabilized catches by setting bounds on the interannual variability in TACs. An integrated modelling framework was used, which simulated both the real and observed systems and the interactions between system...
Tipo: Text
Palavras-chave: Whiting; TAC; Simulation; Saithe; Population modelling; North Sea; Management; Limiting variations; Harvest strategies; Hake; Haddock; Evaluation; Cod; Bounds.
Ano: 2006
URL: https://archimer.ifremer.fr/doc/2006/publication-3694.pdf

An evaluation of natural infestation by leaf pests on soybean (Glycine max (L.) Merrill) cultivars
Provedor de dados: 43
Autores: Castro,Paulo R.C.
Damage caused by leaf pests of soybean on five cultivars was evaluated. Afield experiment was carried out at the Piracicaba region, cultivars Davis, IAC 73-228, PI 227.687,PI 171.451, and PI 229.358 having been compared. Leaf damage was produced by natural infestation of Anticarsia gemmatalis and Plusia sp. Cultivar PI 171.451 showed lower comsumption of leaves in relation to control ('Davis') and other cultivars. Damage was more serious on IAC 73-228 than on PI 227.687 and PI 229.358.
Tipo: Info:eu-repo/semantics/article
Ano: 1981
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761981000100029

An evaluation of physical and mechanical scarification methods on seed germination of Vachellia macracantha (Humb. &amp;amp; Bonpl. ex Willd.) Seigler &amp;amp; Ebinger
Provedor de dados: 109
Autores: Maldonado-Arciniegas,Francisco; Rúales,Carlos; Caviedes,Mario; Ramírez,Darío X; León-Reyes,Antonio.
Abstract The dry Andean forests are ecosystems with a high diversity of flora and fauna and are at high risk of extinction due to the pressure of human activity. V. macracantha is a native species of the dry Andean forest, which has potential for reforestation and also provides benefits in agroforestry systems, due to its nitrogen fixation capacity, the supply of organic matter, the production of shade and wind protection. The multiplication of this species is limited due to the low percentage of seed germination, which present dormancy. The aim of this research was to determine the most effective scarification method for seeds germination of V. macracantha. Two types of methods were tested, the immersion in strong acids (chemical scarification), and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agroforestry; Agronomic traits; Inter-Andean dry forest; Plant development stages; Seed characteristics; Seed dormancy; Seed germinative capacity.
Ano: 2018
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100120

AN EVALUATION OF THE IMPACT OF PROGRESA ON PRE-SCHOOL CHILD HEIGHT
Provedor de dados: 31
Autores: Behrman,   Jere R.; Hoddinott,   John.
The nutrition of preschool children is of considerable interest not only because of concern over their immediate welfare, but also because their nutrition in this formative stage of life is widely perceived to have substantial persistent impact on their physical and mental development and on their health status as adults. Children’s physical and mental development shapes their later lives by affecting their schooling success and post-schooling productivity. Improving the nutritional status of currently malnourished preschoolers may, therefore, have important payoffs over the long term. Within rural Mexico, stunting, or short height relative to standards established for healthy populations, is the major form of protein-energy malnutrition (PEM). Low weight...
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/16387

An Evaluation of the Macarena Integral Consolidation Plan (PCIM)
Provedor de dados: 31
Autores: Mejia,   Daniel; Uribe,   Maria Jose; Ibanez,   Ana Maria.
This paper presents a description of the new strategy for the fight against drugs implemented in Colombia since the year 2007. The Strategic Leap Forward, as the Colombian government has called the program, or the Strategic Development Initiative, as the United States Agency for International Development (USAID) calls it, is a step forward in the design of anti-drug policies that are more sustainable and effective in the mid-term. Currently, a pilot project is being implemented in the Macarena region, in the department of Meta (southeast of Bogotá), where coca crops and illicit activities were the norm just a few years ago. The Colombian State, partially financed by the United States governments and European countries, consolidates its presence in this...
Tipo: Working or Discussion Paper
Palavras-chave: Macarena; Consolidation Plan; Colombia; Anti-drug policies; Land Economics/Use; H44; H56; I38; O18.
Ano: 2011
URL: http://purl.umn.edu/107426

An Ex Ante Analysis of the Benefits from the Adoption of Corn Rootworm Resistant, Transgenic Corn Technology
Provedor de dados: 31
Autores: Alston,   Julian M.; Hyde,   Jeffrey; Marra,   Michele C.; Mitchell,   Paul D.
This study examined the potential economic impacts in the United States of the commercial adoption of a corn rootworm (CRW) resistant transgenic corn. Using a counterfactual approach, we estimated that if the technology had been made available in the year 2000 at a price that would equate per acre costs to those for insecticide-based corn rootworm control, and adopted on all of the acres treated for corn rootworm in that year, the total benefits would have been $460 million. This benefit includes $171 million to the technology developer and seed companies, $231 million to farmers from yield gains, and a further $58 million to farmers from reduced risk, time savings, and other nonpecuniary benefits associated with reduced use of insecticides. This is a...
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/57828

AN EXAMINATION OF THE STABILITY OF COOPERATION IN A VOLUNTARY COLLECTIVE ACTION: THE CASE OF NONPOINT-SOURCE POLLUTION IN AN AGRICULTURAL WATERSHED
Provedor de dados: 31
Autores: Algozin,   Kenneth A.; Nelson,   Carl H.
This paper addresses the collective action problem of nonpoint-source pollution control in a small agricultural watershed.  At issue is the stability of cooperative behavior among a group of farmers, who have voluntarily agreed to discontinue their use of the herbicide atrazine due to high concentrations of the herbicide in a local water  supply.   Continued cooperation among the group is threatened by the unexpected cancellation of cyanazine, an inexpensive and widely used alternative to atrazine.  With cyanazine no longer available, the farmers will face a significant increase in weed control costs if they continue to use products that do not contain atrazine.  Is cooperation among the farmers still possible despite the increased cost of cooperating?...
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/20478

An Experimental Analysis of Auctioning Emission Allowances Under a Loose Cap
Provedor de dados: 31
Autores: Shobe,   William; Palmer,   Karen L.; Myers,   Erica; Holt,   Charles; Goeree,   Jacob K.; Burtraw,   Dallas.
The direct sale of emission allowances by auction is an emerging characteristic of cap-and-trade programs. This study is motivated by the observation that all of the major implementations of cap-and-trade regulations for the control of air pollution have started with a generous allocation of allowances relative to recent emissions history, a situation we refer to as a “loose cap.” Typically more stringent reductions are achieved in subsequent years of a program. We use an experimental setting to investigate the effects of a loose cap environment on a variety of auction types. We find that all auction formats studied are efficient in allocating emission allowances, but auction revenues tend to be lower relative to competitive benchmarks when the cap is...
Tipo: Journal Article
Palavras-chave: Auction; Carbon dioxide; Greenhouse gases; Allowance trading; Regional Greenhouse Gas Initiative; RGGI; Cap and trade; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/90827

An Experimental Investigation of Hard and Soft Price Ceilings in Emissions Permit Markets
Provedor de dados: 31
Autores: Perkis,   David F.; Cason,   Timothy N.; Tyner,   Wallace E.
Tradable emissions permits have been implemented to control pollution levels in various markets around the world and represent a major component of legislative efforts to control greenhouse gas (GHG) emissions in the United States.  Because permits are supplied for a fixed level of pollution, allowing the market for permits to determine the price, there is a desire for price control mechanisms which would protect firms otherwise susceptible to price spikes caused by fluctuations in the demand for pollution abatement.  We test permit markets in an experimental laboratory setting to determine the effectiveness of several price control mechanisms.  Evidence suggests that both permit supply adjustments and traditional price ceilings (hard ceilings) effectively...
Tipo: Presentation
Palavras-chave: Tradable Emissions Permit Market; Price Controls; Hard Ceiling; Soft Ceiling; Experimental Economics; Environmental Economics and Policy; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2012
URL: http://purl.umn.edu/124096

An experimental model of mycobacterial infection under corneal flaps
Provedor de dados: 56
Autores: Adan,C.B.D.; Sato,E.H.; Sousa,L.B.; Oliveira,R.S.; Leão,S.C.; Freitas,D.
In order to develop a new experimental animal model of infection with Mycobacterium chelonae in keratomileusis, we conducted a double-blind prospective study on 24 adult male New Zealand rabbits. One eye of each rabbit was submitted to automatic lamellar keratotomy with the automatic corneal shaper under general anesthesia. Eyes were immunosuppressed by a single local injection of methyl prednisolone. Twelve animals were inoculated into the keratomileusis interface with 1 µl of 10(6) heat-inactivated bacteria (heat-inactivated inoculum controls) and 12 with 1 µl of 10(6) live bacteria. Trimethoprim drops (0.1%, w/v) were used as prophylaxis for the surgical procedure every 4 h (50 µl, qid). Animals were examined by 2 observers under a slit lamp on the 1st,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infectious eye diseases; Keratitis; Animal model; Mycobacterium chelonae; Lamellar keratotomy.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000700010

An experimental test of rainfall as a control agent of Glycaspis brimblecombei Moore (Hemiptera, Psyllidae) on seedlings of Eucalyptus camaldulensis Dehn (Myrtaceae)
Provedor de dados: 92
Autores: Oliveira,Karla N.; Jesus,Fabiene M. de; Silva,Jhonathan O.; Espírito-Santo,Mário M. do; Faria,Maurício L.
An experimental test of rainfall as a control agent of Glycaspis brimblecombei Moore (Hemiptera, Psyllidae) on seedlings of Eucalyptus camaldulensis Dehn (Myrtaceae). Glycaspis brimblecombei is one the greatest threats to eucalyptus plantations in Brazil. The effects of rainfall to reduce the abundance of lerp of Glycaspis brimblecombei on experimentally infested seedlings of Eucalyptus camaldulensis were assessed. The number of lerps on the adaxial and abaxial surfaces of every leaf of 60 seedlings was recorded, before and after submission to the following treatments: "artificial rain", "leaf wetting" and control. A drastic reduction in lerp abundance per plant was observed after the treatments "leaf wetting" and artificial rain (F = 53.630; p &lt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbivory; Pest management; Red gum lerp psyllid.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000100016

An Exploration of Irish Consumer Acceptance of Nanotechnology Applications in Food
Provedor de dados: 31
Autores: Greehy,   Grainne; McCarthy,   Mary; Henchion,   Maeve M.; Dillon,   Emma J.; McCarthy,   Sinead.
Nanotechnology has come to the attention of food stakeholders in recent years. It offers many potential benefits to food companies and consumers, for example the ability to produce healthier food without compromising taste, but it has also generated much debate, in particular about potential unknown risks associated with food applications of nanotechnology. This research provides some insights into Irish consumer acceptance of food related applications of nanotechnology and details the determining factors framing consumers’ attitudes. Key issues investigated include consumers’ awareness of and attitudes towards nanotechnology, the subjective values (including perceived risk-benefit trade-offs) that frame these attitudes and the influence of new information...
Tipo: Presentation
Palavras-chave: Novel food technologies; Nanotechnology; Consumer acceptance; Risk perceptions; Risk communication; Deliberative discourse; Agribusiness; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies.
Ano: 2011
URL: http://purl.umn.edu/122006

An exploration of language for biodiversity and regeneration in Australian agriculture
Provedor de dados: 31
Autores: Scott,   Pennie; Watson,   Geoff K.
The language of words is the most commonly used tool in person to person communication and this in turn, profoundly reflects and creates an individual’s belief systems and behaviours. In the arena of sustainable production systems for food and fibre and the ‘management’ of natural resources, there is a plethora of information provided by organisations dedicated to researching and communicating new land use methods for farmers to implement. However to date, the uptake of new methods has been frustratingly low resulting in the on-going degradation of Australia’s fragile landscapes while exploitative farming practices continue. A key issue is whether the language of current policies is appropriate to influence the belief systems of decision makers in...
Tipo: Article
Palavras-chave: Agricultural belief systems; Emotional learning; Gender attributes; Agricultural expectations; Holistic; Eco-literacy; Economic rationalism; Agro-ecological paradigms; Farm Management.
Ano: 2006
URL: http://purl.umn.edu/122524

An exploration of the potential benefits of integrated pest management systems and the use of insect resistant potatoes to control the Guatemalan Tuber Moth (Tecia solanivora Povolny) in Ventaquemada, Colombia
Provedor de dados: 31
Autores: Falck-Zepeda,   Jose Benjamin; Barreto-Triana,   Nancy; Baquero-Haeberlin,   Irma; Espitia-Malagon,   Eduardo; Fierro-Guzman,   Humberto; Lopez,   Nancy.
CORPOICA and IFPRI implemented a research project in Ventaquemada, Colombia. The project’s goal was to asses the benefits of Integrated Pest Management (IPM) practices and the potential of Genetically Modified insect resistant (Bt) potatoes to manage damage caused by the Guatemalan Tuber Moth (Tecia solanivora Povolny). The Guatemalan Tuber Moth is particularly destructive because field spraying on the adult stage is ineffective and there exists damage specificity to the tubers. Excessive pesticide sprays have resulted in resistance to several insecticides. Insect resistant (Bt) potatoes has been shown an effective means to control other members of the Tuber Moth complex. Thus a Bt potato may play a role in managing Tecia in Colombia. This is an ex ante...
Tipo: Report
Palavras-chave: Potatoes; Economic aspects; Genetically modified crops; Economic surplus model; Economic impacts; Risk; Research and development; Bt potatoes; Crop Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/55416

AN EX-POST ANALYSIS OF FLOOD CONTROL: BENEFIT COST ANALYSIS AND THE VALUE OF INFORMATION
Provedor de dados: 31
Autores: Ramirez,   Jorge; Adamowicz,   Wiktor L.; Easter,   K. William; Graham-Tomasi,   Theodore.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1987
URL: http://purl.umn.edu/13289

AN EX-POST ANALYSIS OF THE FLOOD CONTROL PROJECT IN RUSHFORD, MINNESOTA
Provedor de dados: 31
Autores: Ramirez,   Jorge; Easter,   K. William.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1987
URL: http://purl.umn.edu/13035

An extract of Polygonum multiflorum protects against free radical damage induced by ultraviolet B irradiation of the skin
Provedor de dados: 56
Autores: Hwang,I.K.; Yoo,K.-Y.; Kim,D.W.; Jeong,S.J.; Won,C.-K.; Moon,W.-K.; Kim,Y.S.; Kwon,D.Y.; Won,M.H.; Kim,D.-W.
Over the last decades, the incidence of ultraviolet B (UVB)-related skin problems has been increasing. Damages induced by UVB radiation are related to mutations that occur as a result of direct DNA damage and/or the production of reactive oxygen species. We investigated the anti-oxidant effects of a Polygonum multiflorum thumb extract against skin damage induced by UVB irradiation. Female SKH-1 hairless mice were divided into three groups: control (N = 7), distilled water- (N = 10), and P. multiflorum extract-treated (PM, N = 10) groups. The PM (10 g) was extracted with 100 mL distilled water, cryo-dried and 9.8 g was obtained. The animals received a topical application of 500 µL distilled water or PM extract (1, 2, 4, 8, and 16%, w/v, dissolved in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polygonum multiflorum extract Skin Ultraviolet B irradiation Free radicals Cu; Zn-superoxide dismutase Hairless mouse.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000900005

AN ICT-BASED TRACEABILITY SYSTEM IN COMPOUND FEED INDUSTRY
Provedor de dados: 31
Autores: Cebeci,   Zeynel; Erdogan,   Yoldas Erdogan; Alemdar,   Tuna; Celik,   Ladine; Boga,   Mustafa; Uzun,   Yusuf; Coban,   Durdu H.; Gorgulu,   Murat; Tosten,   Funda.
The term traceability refers to recording of flow of products along the food chain from production to consumption with inclusion of all intermediate applications involved in processing/packaging stages. The aim for establishing traceability in the food chain is to provide the timely identification and recall of batches of product from the market when a risk threatens the health of consumers. Since compound feed products are basic inputs in livestock and poultry production, ICT-based feed traceability systems can be considered as a initial step in food traceability management. These systems are simply information recording systems that are designed to trace and track the flow and characteristics of animal feed along the feed supply chain. This paper...
Tipo: Journal Article
Palavras-chave: Compound feeds; Feed traceability; Traceability systems; Food safety; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession.
Ano: 2009
URL: http://purl.umn.edu/53569

An Immune System Perspective on Ecosystem Management
Provedor de dados: 7
Autores: Janssen, Marco A; Indiana University; maajanss@indiana.edu.
A new perspective for studying the complex interactions between human activities and ecosystems is proposed. It is argued that biological immune systems share a number of similarities with ecological economic systems in terms of function. These similarities include the system's ability to recognize harmful invasions, design measures to control and destroy these invasions, and remember successful response strategies. Studying both the similarities and the differences between immune systems and ecological economic systems can provide new insights on ecosystem management.
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive systems; Artificial immune systems; Biological invasions; Ecological economic systems; Ecosystem management; Immune systems; Institutions; Models.
Ano: 2001

An improved whole life cycle culture protocol for the hydrozoan genetic model   Clytia hemisphaerica
Provedor de dados: 5
Autores: Lechable, Marion; Jan, Anne-cecile; Duchene, Axel; Uveira, Julie; Weissbourd, Brandon; Gissat, Loann; Collet, Sophie; Gilletta, Laurent; Chevalier, Sandra; Leclère, Lucas; Peron, Sophie; Barreau, Carine; Lasbleiz, Régis; Houliston, Evelyn; Momose, Tsuyoshi.
The jellyfish species Clytia hemisphaerica (Cnidaria, Hydrozoa) has emerged as a new experimental model animal in the last decade. Favorable characteristics include a fully transparent body suitable for microscopy, daily gamete production and a relatively short life cycle. Furthermore, whole genome sequence assembly and efficient gene editing techniques using CRISPR/Cas9 have opened new possibilities for genetic studies. The quasi-immortal vegetatively-growing polyp colony stage provides a practical means to maintain mutant strains. In the context of developing Clytia as a genetic model, we report here an improved whole life cycle culture method including an aquarium tank system designed for culture of the tiny jellyfish form. We have compared different...
Tipo: Text
Palavras-chave: Animal culture; Cnidarian; Developmental biology; Genetics; Jellyfish.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00656/76820/77996.pdf

An in vitro study of two GAG-like marine polysaccharides incorporated into injectable hydrogels for bone and cartilage tissue engineering
Provedor de dados: 5
Autores: Rederstorff, Emilie; Weiss, Pierre; Sourice, S.; Pilet, P.; Xie, F.; Sinquin, Corinne; Colliec-jouault, Sylvia; Guicheux, Jerome; Laib, S.
Natural polysaccharides are attractive compounds with which to build scaffolds for bone and cartilage tissue engineering. Here we tested two non-standard ones, HE800 and GY785, for the two-dimensional (2-D) and three-dimensional (3-D) culture of osteoblasts (MC3T3-E1) and chondrocytes (C28/I2). These two glycosaminoglycan-like marine exopolysaccharides were incorporated into an injectable silylated hydroxypropylmethylcellulose-based hydrogel (Si-HPMC) that has already shown its suitability for bone and cartilage tissue engineering. Results showed that, similarly to hyaluronic acid (HA) (the control), HE800 and GY785 significantly improved the mechanical properties of the Si-HPMC hydrogel and induced the attachment of MC3T3-E1 and C28/I2 cells when these...
Tipo: Text
Palavras-chave: Glycosaminoglycan; Hydrogel; Polysaccharide; Bone and cartilage tissue engineering; In vitro test.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00030/14090/15747.pdf

An in vivo test to assess mefloquine 25 mg/kg for the treatment of uncomplicated falciparum malaria in Rondônia, Brazil
Provedor de dados: 55
Autores: Basano,S.A.; Bianco,A.; Taylor,W.R..J; Olliaro,P.; Camargo,L.M.A.
Drug-resistant Plasmodium falciparum is undermining malaria control efforts worldwide. In Brazil, mefloquine (MQ) at a dose of 15 mg/kg body weight is used to treat P. falciparum. At this dose, MQ resistance developed rapidly in Thailand. Use of a higher MQ dose may retard the development of resistance. We treated 50 patients aged one to 67 years who had acute, uncomplicated P falciparum malaria using MQ 25 mg/kg. There were no serious adverse events. Two patients complained of dizziness and insomnia. Assessing evaluable patients, the day 42 cure rate was 40/42 [95.2% (95% confidence interval 83.8 to 99.4%)]. Mefloquine was efficacious and well tolerated in this small cohort from the state of Rôndonia.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malaria; Mefloquine; Amazon; Rondônia; Therapeutics.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000400013

An Incentive System for Salmonella Control in the Pork Supply Chain
Provedor de dados: 31
Autores: Backus,   Ge B.C.; King,   Robert P.
This paper presents a dynamic principal-agent analysis of an incentive system for Salmonella control in the pork supply chain. The incentive system determines quality premiums to the producer, testing frequencies for hogs delivered, as well as charges to the producer for testing and penalties. Using cost estimates and technical parameters, we evaluate the cost effectiveness of plant and farm control measures and trade-offs between prevalence reduction and related costs and gains. We also assess the impact of ownership structure on incentive system parameters and performance for a wide range of prevalence threshold levels. Differences in control actions, bacteriological prevalence and the overall welfare gain for the chain are very small across ownership...
Tipo: Conference Paper or Presentation
Palavras-chave: Dynamic programming; Food quality; Principal-agent; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/9941

An index number decomposition of profit change in two Australian fishing sectors
Provedor de dados: 31
Autores: Vieria,   Simon.
Changes in net economic returns in a fishery over time can provide some indication of which direction a fishery’s economic performance is moving. However, without information on the causes of those movements, it is difficult to say if a fishery is moving closer to or further away from a point associated with maximum economic yield. A further complication is that different drivers of profitability can cause profit to move in different directions and at variable magnitudes over time. The key variables that influence a fishery’s profitability include: prices received for catch; prices paid for inputs (such as crew and fuel); vessel productivity (that is, the ability of each vessel to convert its inputs into outputs or harvested catch); and the fishery’s stock...
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/100728

An inexpensive alternative equipment for the plant material embedding in the paraffin under the vacuum
Provedor de dados: 52
Autores: Leitão,Carlos André Espolador; Cortelazzo,Angelo Luiz.
The present work describes an equipment constructed using inexpensive material for embedding the plant material in the paraffin under the vacuum, using an oven and a vacuum pump. The equipment was tested using the samples of Rodriguezia venusta (Orchidaceae) buds embedded in paraffin, where half of the samples were submitted to the vacuum by the equipment during the embedding. The material was sectioned with a rotary microtome, obtaining full series of quality sections. The control was hard to section with the microtome, obtaining damaged sections due the air bubbles, making the ribbon formation difficult. These results proved the effectiveness of the equipment, making it a practical, inexpensive and more portable solution for newly established laboratories.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Embedding; Paraffin method; Plant anatomy; Technique in microscopy.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000500018

An inexpensive open-source ultrasonic sensing system for  monitoring liquid levels
Provedor de dados: 111
Autores: Fisher, Daniel K.; Sui, Ruixiu.
 Liquid levels are measured in a variety of agricultural applications, and are often measured manually, which can be time-consuming and labor-intensive.  Rapid advances in electronic technologies have made a variety of inexpensive sensing, monitoring, and control capabilities available.  A monitoring system was developed and evaluated for automatic measurement of liquid levels, and demonstrated by monitoring water levels in evaporation pans used in evaporation studies and irrigation scheduling.  The system is composed of an ultrasonic sensor, a microcontroller-based data logger, and a temperature sensor.  The ultrasonic sensor measures the distance from the sensor to the liquid surface.  Air temperature is measured by the temperature sensor, and is used to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Edge effect compensation; Hyperspectral imaging; Canker; Spatial correction; Geometric correction.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2343

An innovative method for the biological control of Alternanthera philoxeroides
Provedor de dados: 17
Autores: Yusong Cao; Huiming Wang.
Biological invasion has become a serious global environmental problems and been considered as an important component of global change^1-2^. Invasions by alien species can have an impact at several levels of ecological complexity from genes to ecosystems^3-4^. Invasive alien species had seriously threated the biodiversity and natural ecosystems in China^5^, and caused economic losses by more than US$7 billion every year^6^. Alternanthera philoxeroides, commonly known as Alligator weed, is an invasive amphibious plant^7^. The effect of physical methods such as mechanical or artificial salvage, removal of A. philoxeroides were very limited. Moreover, these measure should be carried out very carefully or would easy lead to its rebound^8^. The mainly biological...
Tipo: Manuscript
Palavras-chave: Biotechnology; Ecology; Plant Biology.
Ano: 2010
URL: http://precedings.nature.com/documents/5267/version/1

An innovative, simple, fast, and less toxic high-performance liquid chromatographic method for determination of prednisone in capsules
Provedor de dados: 60
Autores: Silva,Pedro Henrique Reis da; Enéas,Paula Cristina Rezende; Fernandes,Christian; Pianetti,Gerson Antônio.
ABSTRACT Prednisone is an anti-inflammatory steroid drug widely used in clinical practice. However, no high-performance liquid chromatographic (HPLC) method has been described in the literature for the determination of prednisone in capsules until now. Thus, an HPLC method was developed using a C18 (250x4.0, 5 µm) column, with methanol:water (70:30) as mobile phase at a flow rate of 1 mL/min and detection at 240 nm. The developed method was validated following current Brazilian legislation. Additionally, linearity was assessed by evaluating the assumptions of normality, homoscedasticity, and independency of residuals, and the fit to the linear model. The method showed linearity (r2&gt;0.99) over the range of 14.0-26.0 µg/mL, selectivity, precision...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prednisone; Capsules; High performance liquid chromatography/validation; Linearity assessment.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000200624

An innovative strategy to control codling moth: “ALT'CARPO” Concept
Provedor de dados: 21
Autores: Romet, L.; Severac, G.
A new device has been developed and tested on 30 hectares in 2007, to protect apples  from codling moth Cydia pomonella damages. Different meshes, dates and strategies  have been tested, and observations on various orchards give an outstanding efficacy with  very few damages at harvest.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2008
URL: http://orgprints.org/13717/1/291%2D294.pdf

AN INSTITUTIONAL ECONOMIC APPRAISAL OF WORKER EQUITY SCHEMES IN AGRICULTURE:
Provedor de dados: 31
Autores: Karaan,   Mohammad.
The institutional economic appraisal conducted in this paper confirms that equity schemes are subject to institutional incompleteness as proposed in ICT. The incompleteness stem from the lack of verifiability related to social capital, embeddedness, governance and micro performance. In addition, they lack the requisite ex ante incentives to enable ex post adaptation, counterveilance over opportunism, and the distribution of residual claims and control. The first reason for incompleteness emanate from the motivations of the initiators, which is opportunism by landowners to secure their assets in the face of uncertainty and/or enhance their returns in the marketplace. The lack of worker effort and options in the early stages raises credible commitment...
Tipo: Conference Paper or Presentation
Palavras-chave: Labor and Human Capital.
Ano: 2003
URL: http://purl.umn.edu/19094

An instrumental set up for seed germination studies with temperature control and automatic image recording
Provedor de dados: 61
Autores: Teixeira,Pedro C.N.; Coelho Neto,José A.; Rocha,Humberto; Oliveira,Juracy M. de.
This paper describes a new instrumental methodology proposed for the study of seed germination which can be applied to germination physiology, agriculture and forest restoration. This instrument performs the recording of images of germinating seeds through the use of a flat-bed scanner coupled to a computer, where a specific program commands the capture of these images at predetermined time intervals. These images are archived for posterior analysis. The device allows the collection of data and the elaboration of germination curves with high accuracy. Furthermore, the device permits the study of seed germination over a broad range of temperatures as well as the easy application of chemical agents to the seeds in order to study their influence on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digital image; Lactuca sativa; Scanner; Siegel's test; Thermal gradient tables.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000200002

An integrated fish-plankton aquaculture system in brackish water
Provedor de dados: 5
Autores: Gilles, S.; Fargier, L.; Lazzaro, X.; Baras, E.; De Wilde, Nicolas; Drakides, C.; Amiel, C.; Rispal, B.; Blancheton, Jean-paul.
Integrated Multi-Trophic Aquaculture takes advantage of the mutualism between some detritivorous fish and phytoplankton. The fish recycle nutrients by consuming live (and dead) algae and provide the inorganic carbon to fuel the growth of live algae. In the meanwhile, algae purify the water and generate the oxygen required by fishes. Such mechanism stabilizes the functioning of an artificially recycling ecosystem, as exemplified by combining the euryhaline tilapia Sarotherodon melanotheron heudelotii and the unicellular alga Chlorella sp. Feed addition in this ecosystem results in faster fish growth but also in an increase in phytoplankton biomass, which must be limited. In the prototype described here, the algal population control is exerted by herbivorous...
Tipo: Text
Palavras-chave: IMTA; Tilapia; Chlorella; Brachionus plicatilis; Photosynthetic recycling aquaculture system.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00118/22955/20945.pdf

An intercomparison study of the determination of sulfite in tropical shrimps by the West European Fish Technologists' Association (WEFTA)
Provedor de dados: 27
Autores: Luten, J.; Bouquet, W.; Oehlenschläger, J.; Meetschen, U.; Etienne, M.; Stroud, G.; Bykowski, P.; Batista, I.; Vyncke, W.; Stefansson, G.
Eight WEFTA laboratories participated in two series of intercomparison exercises on sulfite determination in tropical shrimps. Samples of tropical shrimps were spiked with sodium metabisulfite (Na&lt;sub&gt;2&lt;/sub&gt;S&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5&lt;/sub&gt;) and hydroxymethylsulfonate (HMS) at a level of 25-90 mg SO&lt;sub&gt;2&lt;/sub&gt;/kg. Most of the laboratories determined the sulfite content with (modified) methods of Monier-Williams or De Vries et al. The overall mean recovery of sulfite was rather low (47-60%), which may be attributed to an irreversible reaction of sulfite with the tropical shrimps. The repeatability of the methods within the participating laboratories was good. However, reproducibility among the laboratories was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Detection; Fishery products; Food technology; International cooperation; Quality control; Recovery; Shrimp fisheries; Sulphites.
Ano: 1997
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5742

An Interdisciplinary Approach to White-collar Crime in the Food Sector
Provedor de dados: 31
Autores: Hirschauer,   Norbert; Musshoff,   Oliver; Scheerer,   Sebastian.
The probability that buyers are deceived with regard to the quality or safety of purchased products (moral hazard) increases with the profits which suppliers can earn through opportunistic behaviour. It decreases with the probability and level of losses that result from disclosure of malpractice. It also decreases with protective factors rooted in the suppliers' social contexts - such as values, emotional bonds etc. - that shield them from yielding to economic temptations. This paper describes how a systematic analysis of economic incentives and social context factors can be provided through an interdisciplinary approach which combines the analytical powers of microeconomics (game theory) and criminology (control theories). The approach is discussed with...
Tipo: Conference Paper or Presentation
Palavras-chave: Asymmetric information; Behavioural food risks; Control theories; Game theory; Moral hazard; Opportunistic malpractice; Agribusiness; Institutional and Behavioral Economics; A13; K32; K42.
Ano: 2006
URL: http://purl.umn.edu/25688

AN INTRASEASONAL BIOECONOMIC MODEL OF PLRV NET NECROSIS
Provedor de dados: 31
Autores: Marsh,   Thomas L.; Huffaker,   Ray G.; Folwell,   Raymond J.; Long,   Gary.
A bioeconomic model is developed as an IPM planning tool to combat PLRV net necrosis in the PNW potato industry.  Environmental/biological and production processes are linked to marketing activities using discrete time control.  We find that pesticides can be optimally timed to reduce applications and still protect against net necrosis.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries; Environmental Economics and Policy.
Ano: 1998
URL: http://purl.umn.edu/20935

An introduction to ecological challenges concerning the use of genetically-modified mosquitoes for disease control
Provedor de dados: 26
Autores: Takken, W.; Boëte, C.
Tipo: Conference proceedings
Ano: 2004
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/836

AN INTRODUCTION TO STATE TRADING IN AGRICULTURE
Provedor de dados: 31
Autores: Ackerman,   Karen Z.; Dixit,   Praveen M.
State trading enterprises are far more prevalent in agriculture than in other industries. STEs account for significant shares of world trade in grains, dairy products, and sugar. Attempts to measure the impacts of STEs and their activities on international agricultural trade have just begun. This report presents a classification scheme for STEs that provides a qualitative index of an STE's ability to control domestic markets and its ability to influence external trade. We applied the classification scheme to nine major agricultural STEs and concluded that only a few of them are able to affect international trade substantially. Recent policy reforms have eroded some of the nine's powers to influence trade.
Tipo: Report
Palavras-chave: International Relations/Trade.
Ano: 1999
URL: http://purl.umn.edu/33909

An Inverse Demand System for New England Groundfish: Welfare Analysis of the Transition to Catch Share Management
Provedor de dados: 31
Autores: Lee,   Min-Yang A.; Thunberg,   Eric M.
In 2010, the Northeast groundfish fishery transitioned from an effort-control system (Days-at-Sea) to an output-control system (catch shares). Simultaneously, a large decrease in aggregate catch was imposed in order to achieve biological objectives. This research examines the welfare effects of the transition to catch-share management by combining an inverse demand model for groundfish with a simulation based model of supply. The Generalized Differential Inverse Demand System is estimated for groundfish and imports using monthly data from 1994-2011 using a Generalized Method of Moments estimator. The estimated parameters are combined with simulated landings derived from a counterfactual policy scenario had ef- fort controls been retained instead of the...
Tipo: Presentation
Palavras-chave: Demand and Price Analysis; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2012
URL: http://purl.umn.edu/123879

An inverse model of the large scale circulation in the South Indian Ocean
Provedor de dados: 5
Autores: Sultan, Emmanuelle; Mercier, Herle; Pollard, R.t.
An overview of the large-scale circulation of the South Indian Ocean (SIO) (10 degrees S-70 degrees S/20 degrees E-120 degrees E) is proposed based on historical hydrographic data (1903-1996) synthesized with a finite-difference inverse model. The in situ density, potential temperature and salinity fields of selected hydrographic stations are projected on the basis of EOFs. Then the EOF coefficients (the projected values) are interpolated on the model grid (1 degrees in latitude, 2 degrees in longitude) using an objective analysis whose spatial correlation functions are fitted to the data set. The resulting fields are the input of the inverse model. This procedure filters out the small-scale features. Twelve modes are needed to keep the vertical structures...
Tipo: Text
Palavras-chave: Mean circulation; Meridional overturning circulation; Weddell Gyre; Antarctic Circumpolar Current; Inverse model; Southern Indian Ocean.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2672.pdf

An Investigation into the Net Benefits of Revegetating Agricultural Land with Indigenous Species in the Dryland Section of the Goulburn-Broken Catchment Area
Provedor de dados: 31
Autores: Trapnell,   Lindsay N.
Benefits ascribed to the revegetation of farming landscapes include enhancement of biodiversity, reduction in the advance of dryland salinity, sequestration of greenhouse gases, control of soil erosion, greater protection of agricultural activities from adverse weather conditions and an improved aesthetic value of rural lands. In this paper, economic analyses were performed to determine the net benefits to landholders of carrying out revegetation. Where the net benefits were insufficient to allow reasonable returns to be earned on the investment of marginal capital, an assessment was made of the amount and type of assistance that would be necessary to encourage landholders to adopt this improved system of land management.
Tipo: Conference Paper or Presentation
Palavras-chave: Biodiversity; Economic and Financial Analyses; Environmental Degradation; Land Management; Revegetation; Environmental Economics and Policy; Land Economics/Use.
Ano: 2003
URL: http://purl.umn.edu/58265

An investigation of the incidence, treatment strategies and financial implications of mastitis in organic and conventionally managed UK dairy herds
Provedor de dados: 21
This study will aim to develop and promote improved techniques and systems for the control and treatment of mastitis in both organic and conventional dairy cattle.  The study will be composed of 6 specific objectives outlined as follows, together with ways in which they might be achieved: 1. Measurement of the level of mastitis in organic and convetional dairy production systems.  Initially,  review of relevant literature will be conducted.  The DAISY database of 100 sentinel herd throughout the country will be analysed to estimate the mastitis in dairy herds (selected from a survey of all organic dairy farms) of varying size with different management systems will be monitored; this will include monthly California Milk Test monitoring of all lactating cows...
Tipo: Project description
Palavras-chave: Education; Extension and communication Dairy cattle Technology transfer Health and welfare Feeding and growth.
Ano: 2023

An Investment Analysis Approach to Examining Bio-Control of Invasive Weeds
Provedor de dados: 31
Autores: Smith,   Elwin G.; Young,   Douglas L.
Invasive weeds are a large problem on large tracts of rangeland in North America. Biological methods of control have been instituted, but many information gaps remain. An investment model approach is used to demonstrate some of the potentially key pieces of biological data that are required for an analysis. This model is applied to the control of leafy spurge on rangeland. The results of control are very dependent on the rate of spread and control by the biological control agent, the initial density of the weed, and the recovery of the forage (grass) after the weed has been controlled. Benefits of control are relatively low, as is the cost of the biological control practice. It takes several years before net benefits of the control practice are positive.
Tipo: Conference Paper or Presentation
Palavras-chave: Land Economics/Use.
Ano: 2005
URL: http://purl.umn.edu/36286

An Online Cost Calculator for Estimating the Economic Cost of Illness Due to Shiga Toxin-Producing E. coli (STEC) 0157 Infections
Provedor de dados: 31
Autores: Frenzen,   Paul D.
Shiga toxin-producing E. coli (STEC) O157 is a significant cause of foodborne illness in the United States. ERS estimated the economic cost of illness due to this pathogen— $405.2 million (in 2003 dollars)—using the most recent estimate (1997) of the annual number of STEC O157 cases by the Centers for Disease Control and Prevention (CDC) and medical and cost data from the Foodborne Diseases Active Surveillance Network. CDC is currently updating its estimate of annual cases. As new information becomes available, the ERS online Foodborne Illness Cost Calculator enables users to review and modify the assumptions underlying the STEC O157 cost estimate, such as the number of cases, and then recalculate the cost, adjusted for inflation for any year from 1997 to...
Tipo: Report
Palavras-chave: Keywords: Foodborne illness; Foodborne pathogens; Food safety; Shiga toxin-producing E. coli O157; E. coli O157:H7; Enterohemorrhagic E. coli; Economic cost of illness; Value of statistical life; Morbidity; Mortality. Acknowledgments; Health Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/59022

AN OPTIMAL CONTROL APPROACH TO WATER QUALITY TRADING: COST-EFFECTIVE POINT/NONPOINT MANAGEMENT IN A WATERSHED FRAMEWORK
Provedor de dados: 31
Autores: Zhao,   Xiaobing; Fletcher,   Jerald J.
This study reflects a growing interest in water quality trading involving both point and nonpoint sources in a watershed framework. An empirical spatial-temporal optimal control model is presented and solved to assess the scope and implications of point/nonpoint trading. Results indicate significant economic gains to broader based interpretations of trading rules.
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/20195

AN OPTIMAL CONTROL FRAMEWORK FOR INTER - REGIONAL DAIRY POLICY ANALYSIS
Provedor de dados: 31
Autores: Tanjuakio,   Rodolfo V.; Gempesaw,   Conrado M., II; Elterich,   Joachim G.
An eleven-region stochastic coefficient econometric model was estimated and used in an optimal control framework to evaluate the effectiveness of the dairy price support program and marketing orders in reducing and stabilizing government purchases of dairy products. The results showed significant pressure on the reduction of the support price  both in the presence and absence of Class I differentials. The optimal control model also showed that the drop in price support levels did not dramatically alter the regional distribution of milk production.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1992
URL: http://purl.umn.edu/29639

An Optimal Control Framework to Address the Relationship between Water Resource Management and Water-Borne Health Impacts:  Focus on the Texas Lower Rio Grande Valley
Provedor de dados: 31
Autores: Leidner,   Andrew J.; Lacewell,   Ronald D.; Rister,   M. Edward; Sturdivant,   Allen W.
The objective of this study is develop a theoretical model that can evaluate two types of public health expenditures on water-borne health risks: water-related municipal services, an ex ante preventative measure against water-borne contamination, and medical treatment, an ex post treatment of the water-borne pollutant’s harmful effects on human health.  The modeled community can allocate resources in either centralized-municipal water-services, point-of-use water-services, or medical intervention, with expenditures subject to a budget constraint.  The movement of a water-borne illness through the community is modeled with a susceptible-infected-susceptible (SIS) disease framework.  An optimization framework is developed, including a statement of the...
Tipo: Conference Paper or Presentation
Palavras-chave: Water; Public health; Rural development; Dynamic optimization; Community/Rural/Urban Development; Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/98806

AN OPTIMAL CONTROL MODEL FOR INTEGRATED WEED MANAGEMENT UNDER HERBICIDE RESISTANCE
Provedor de dados: 31
Autores: Gorddard,   Russell J.; Pannell,   David J.; Hertzler,   Greg.
The presence of weeds which have developed resistance to chemical herbicides is a problem of rapidly growing importance in Australian agriculture. We present an optimal control model of herbicide resistance development in ryegrass, the weed for which resistance is most commonly reported. The model is used to select the optimal combination of chemical and non-chemical control measures taking account of the trade off between short term profits and the long term level of herbicide resistance. Results indicate that given the threat of resistance there are benefits from integrating a combination of chemical and non-chemical control measures. The optimal strategy is found to include a declining herbicide dosage as resistance develops, with compensatory increases...
Tipo: Journal Article
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1995
URL: http://purl.umn.edu/22858

An Optimal Control Model of Deforestation in the PDR of Laos
Provedor de dados: 31
Autores: McAllister,   Ryan; Beard,   Rodney; Asufa-Adjaye,   John.
The PDR of Laos has thus far retained a large proportion of its natural forests relative to other SE Asian countries. This disproportionally high level of forestation, along with current political and economic factors, may create an increase in the demand for Laotion timber. In particular, if the Laotion government maintains responsibility for natural timber harvesting and sets sustainable rates, then the increase in demand may flow into Laos’ illegal timber market. This paper uses an optimal control model to analyse the impact of an increase in the demand for timber. It argues that the illegal timber market damages both the environment and economy.
Tipo: Presentation
Palavras-chave: Environmental Economics and Policy.
Ano: 2000
URL: http://purl.umn.edu/123704

AN OPTIMAL CORN ROOTWORM SCOUTING PROGRAM FOR IMPROVED PROFITABILITY OF AREAWIDE PEST MANAGEMENT IN THE EASTERN CORN BELT
Provedor de dados: 31
Autores: West,   Amelia; Martin,   Marshall A.
Economic analyses show that without cost reductions, Areawide Pest Management for corn rootworm control is not cost effective in Illinois/Indiana where a variant form of the western corn rootworm exists.   This paper examines strategies for reducing scouting/costs and determining the minimal scouting effort necessary to maintain effective adult suppression.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/22075

An Optimal Surveillance Measure Against Foot-and-Mouth Disease in the United States
Provedor de dados: 31
Autores: van Ha,   Pham; Che,   Tuong Nhu; Kompas,   Tom.
Surveillance programs on farms and in the local environment provide an essential protection against the importation and spread of exotic diseases. Combined with border quarantine measures, these programs protect both consumers and producers from major health concerns and disease incursions that can potentially destroy local agricultural production and supporting industries, as well as generate substantial losses in trade and tourism. However, surveillance programs also impose costs in the form of expenditures on the surveillance program itself, along with the costs of disease management and eradication should an incursion occur. Taking border quarantine expenditures as given, this paper develops a stochastic optimal control model (with a jump-diffusion...
Tipo: Conference Paper or Presentation
Palavras-chave: Surveillance measures; Border quarantine; Disease incursion and spread; Foot- and-Mouth disease; Stochastic optimal control; Livestock Production/Industries; Q1; Q17; Q18.
Ano: 2007
URL: http://purl.umn.edu/10354

AN OPTIMAL-CONTROL APPROACH TO STABILISING AUSTRALIAN WOOL PRICES
Provedor de dados: 31
Autores: Hinchy,   Mike; Simmons,   Phil.
In this paper, some aspects of the application of optimal-control techniques to wool industry price stabilisation are considered. It is not intended to provide a blueprint for the immediate adoption of optimal-control techniques in the management of wool price stablisation. Rather, the contribution is to the developmental and evaluative process involved in considering these techniques. A new econometric model of wool price and supply is also presented, since none of the existing models satisfied the requirements of the study.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1983
URL: http://purl.umn.edu/22822

An Optimization Model for the Banana Northern Prawn Fishery
Provedor de dados: 31
Autores: Valle de Souza,   Simone; Gondro,   Cedric; Cacho,   Oscar J.
This study presents an optimal control model of the Banana Northern Prawn Fishery, one of the most important fisheries in Australia. The life cycle of this species involves migration between the sea, where the catch takes place, and the estuary, where post-larvae and juveniles develop. The model combines a stage-matrix population dynamics model and an economic model of sustainable catch. The controls involve the amount of effort allowed and the length of the fishing season. Life stages are defined in terms of prawn size, allowing catch revenue to be adjusted to the expected proportion of specific sized classes caught in a particular month of the year, hence providing a more realistic projection of profits when price is influenced by size. The model is...
Tipo: Conference Paper or Presentation
Palavras-chave: Fisheries management; Australia; Optimal control; Profit maximisation; Banana prawns.; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/59173

An oral challenge for turbot larvae with &lt;i&gt;Vibrio anguillarum&lt;/i&gt;
Provedor de dados: 27
Autores: Chair, M.; Dehasque, M.; Van Poucke, S.; Nelis, H.; Sorgeloos, P.; De Leenheer, A.P.
There is a need for a standard in vitro procedure to infect larval fish with bacteria. Such a procedure could be used as a tool to evaluate fish quality, verify fish sensitivity to a certain bacterial strain or evaluate the pathogenicity of a bacterium towards a given fish species. The availability of a challenge test is a prerequisite in studies dealing with the effect of different medicinal treatments on diseased fish. An oral challenge test would offer the possibility to investigate the routes of infection via the digestive tract, i.e. after feeding contaminated feeds. The present study aims to verify this hypothesis and proposes a standard challenge procedure for turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) larvae with a pathogenic &lt;i&gt;Vibrio...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial diseases; Digestive system; Disease control; Fish culture; Fish diseases; Fish larvae; Marine fish; Pathogenic bacteria; Vibrio anguillarum.
Ano: 1994
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2552

An organic cereal row cropping system − A combination of relay undersown cover crop and inter-row hoeing for a balanced Nitrogen and weed management
Provedor de dados: 21
Autores: Phan, Hong TT.
This PhD thesis contains the new findings about a new row cropping system for organic cereal production. The tested row cropping system is feasible for the combination of inter-row hoeing and undersown cover crop for a more balanced N and weed management, which resulted in a yield improvement of the subsequent crop compared to the traditional system including autumn tillage or cover crop. Although the current design with spring inter-row hoeing and undersown cover crop was less effective than autumn tillage for the control of perennial creeping thistle (Cirsium arvense), there was a promising result of the red clover/orchard grass mixture and several possible options to further improve the weed control effect of the new system. Therefore, the new row...
Tipo: Thesis
Palavras-chave: Farm economics Assessment of impacts and risks Nutrient turnover Technology transfer Biodiversity and ecosystem services Food systems Education; Extension and communication Farm nutrient management Countries and regions Europe Regulation.
Ano: 2019
URL: http://orgprints.org/35161/1/Phd%20thesis%202019.pdf

An outbreak of Acinetobacter baumannii septicemia in a neonatal intensive care unit of a university hospital in Brazil
Provedor de dados: 55
Autores: Brito,Denise von Dolinger de; Oliveira,Elias José; Abdallah,Vânia O. Steffen; Darini,Ana Lúcia da Costa; Gontijo Filho,Paulo P.
We studied an outbreak of two multi-drug resistant clones of Acinetobacter baumannii in the Neonatal Intensive Care Unit of the Uberlândia Federal University Hospital in Minas Gerais state, Brazil, and we analyzed the contribution of cross-transmission in the rise in infection rates. Eleven neonates who developed multi-drug resistant A. baumannii nosocomial infection were matched to 22 neonates who were admitted to the same unit and did not develop an infection during the outbreak period, in order to identify risk factors for infection. Three out of the 11 neonates died. Epidemiological investigation included molecular typing, using pulsed field gel electrophoresis. Prior to the outbreak, from December 2001 to March 2002, no case of infection by this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acinetobacter baumannii; Molecular epidemiology; Outbreak; Neonates.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000400006

An outbreak of acute bovine mastitis caused by Klebsiella pneumoniae in a dairy herd
Provedor de dados: 45
Autores: Silva,N.; Costa,G.M.
An outbreak of coliform mastitis is described in a dairy herd from the State of Rio de Janeiro, Brazil. During a four-month period 14 fatal cases of Klebsiella pneumoniae-related mastitis were observed in a herd of 104 lactating cows. The symptoms included peracute enterotoxemia in which the cows died 6 to 12 h after the detection of mastitis by CMT. Staphylococcus aureus and Streptococcus agalactiae Streptococcus agalactiae were also isolated although could not be associated with cases of acute fatal mastitis. Milking practices were also evaluated. The milking machine was being used correctly and adequate precautions for hygiene and pre-milking and post-milking teat dipping were used. The organism was sensitive to gentamicin. Therapy for acute toxic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dairy cow; Acute bovine mastitis; Outbreak; Klebsiella pneumoniae; Vaccination; Treatment.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352001000400001

An outbreak of Candida spp. bloodstream infection in a tertiary care center in Bogotá, Colombia
Provedor de dados: 55
Autores: DiazGranados,Carlos A.; Martinez,Adriana; Deaza,Ceneth; Valderrama,Sandra.
Several cases of Candida bloodstream infections were documented from June to October 2004 at a tertiary care center in Bogotá, Colombia. Since no cases of candidemia had occurred during the preceding four months, an outbreak was declared. As a result, a microbiological study, a revision of infection control practices and a case-control study were performed. In all, 18 cases of candidemia were ascertained. Parenteral nutrition (p=0.04), presence of a central line (p=0.03), and severity of illness (p=0.03) were associated with candidemia in bivariate analysis. Diverse Candida species were observed. Candida parapsilosis contamination was found in plastic containers used for transient intravenous (IV) medication storage at the bedside, plastic bags reused for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Candida; Fungemia; Disease outbreaks; Developing countries; Colombia; Latin America.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000500009

An overview of a diagnostic and epidemiologic reappraisal of cutaneous leishmaniasis in Iran
Provedor de dados: 55
Autores: Farahmand,Mahin; Nahrevanian,Hossein; Shirazi,Hasti Atashi; Naeimi,Sabah; Farzanehnejad,Zahra.
Cutaneous leishmaniasis (CL) is a widespread tropical infection which has a high incidence rate in Iran. Leishmania tropica, the causative agent of anthroponotic cutaneous leishmaniasis (ACL), and Leishmania major, which causes zoonotic cutaneous leishmaniasis (ZCL), are endemic in various parts of Iran with a high incidence rate. The aim of this study was to evaluate the reappraisal of the diagnosis and epidemiology of CL in Iran, by different clinical, parasitological and molecular assays among patients suspected of CL referred to the Department of Parasitology, at the Pasteur Institute of Iran during 2006-2009. Two hundred samples from patients with ulcerative skin lesions were collected, clinical analyses were applied, data questionnaire was completed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parasitological analysis; Molecular biology; Leishmaniasis; Cutaneous; Iran; Epidemiology.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000100004

An overview of the 2002 outbreak of low-pathogenic H7N2`avian influenza in Virginia, West Virginia and North Carolina
Provedor de dados: 26
Autores: Senne, D.A.; Holt, T.J.; Akey, B.L.
During the spring and summer of 2002, an outbreak of low-pathogenic H7N2 avian influenza virus (AIV) infected 210 flocks of chickens and turkeys in Virginia, West Virginia and North Carolina, and caused the destruction of more than 4.7 million birds. Although no epidemiologic link was established, the virus was related to the H7N2 virus circulating in the live-bird market system (LBMs) since 1994. An avianinfluenza Task Force (TF), comprised of industry, state and federal personnel, was utilized in the control programme. The use of good safety and biosecurity practices was emphasized by TF commanders. Carcass-disposal options, which included burial in sanitary landfills, incineration and composting, proved to be problematic and caused delays in...
Tipo: Conference proceedings
Ano: 2005
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1022

An overview on avian influenza
Provedor de dados: 89
Autores: Martins,Nelson Rodrigo da Silva.
Avian influenza (AI) is considered an exotic disease in the Brazilian poultry industry, according to the National Avian Health Program (PNSA), with permanent monitoring of domestic, exotic and native avian species. Brazil presents privileged environmental conditions of reduced risk. In addition, all commercial poultry and conservation holdings are registered in state or national inventories and geographically located (GPS) for health control. Poultry health standards are adopted for the conformity to the international market, mostly for the intensified poultry destined for exportation, but also for companion exotic and native conservation facilities. Guidelines for monitoring and the diagnosis of AI are published by the PNSA and follow the standards...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avian influenza; Epidemics; Global health.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000200001

AN OWNERSHIP RIGHTS TYPOLOGY OF COOPERATIVE MODELS
Provedor de dados: 31
Autores: Chaddad,   Fabio Ribas; Cook,   Michael L.
This paper examines agricultural cooperative organizational models from an ownership rights perspective. Building upon property rights and incomplete contracts theories of the firm, the paper adopts a definition of ownership rights comprising both residual claim and control rights. We argue that alternative cooperative organizational models differ in the way ownership rights are defined and assigned to the economic agents tied contractually to the firm - members, patrons, and investors. Based on multiple case study evidence, the paper proposes a typology of discrete organizational models, in which the traditional cooperative structure and the investor-oriented firm (IOF) are characterized as polar forms. Additionally, we identify five non-traditional...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 2002
URL: http://purl.umn.edu/26032

An oyster-associated hepatitis A outbreak in France in 2007
Provedor de dados: 5
Autores: Guillois-becel, Y.; Couturier, E.; Le Saux, Jean-claude; Roque-afonso, A. M.; Le Guyader, Soizick; Le Goas, A.; Pernes, J.; Le Bechec, S.; Briand, A.; Robert, C.; Dussaix, E.; Pommepuy, Monique; Vaillant, V.
Following the notification of nine hepatitis A cases clustered in the Cotes d'Armor district in northwestern France, epidemiological, environmental and microbiological investigations were set up in order to identify the source and vehicle of contamination and implement control measures. In total, 111 cases were identified in the outbreak, all of whom lived or had stayed as tourists in the Cotes d'Armor district. Of the cases, 87% had eaten raw shellfish, and 81% specifically oysters. Traceback investigations carried out on raw shellfish consumed by the cases showed that the raw shellfish originated from a single shellfish farm. The shellfish were probably contaminated either in the submersible tanks or in a depuration land-based tank where they were...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6685.pdf

An RT-PCR artifact in the characterization of bacterial operons
Provedor de dados: 69
Autores: Guacucano,Maritza; Levican,Gloria; S. Holmes,David; Jedlicki,Eugenia.
During the course of experiments involving RT-PCR to investigate the co-transcription of the pet and res operons of the bacterium Acidithiobacillus ferrooxidans we observed that the mRNA of certain gene pairs can be amplified by RT-PCR in the absence of added RT-primer. We provide experimental evidence that eliminates, as explanations for the observed results, the possible global contamination of the RNA preparation by genomic DNA or by contaminating single stranded DNA or RNA fragments. We suggest that the results can be explained by self-priming of the RNA perhaps as a result of secondary structure configurations that provide a suitable 3’-terminus to prime the reverse transcriptase. This type of artifact can be recognized by carrying out a control in...
Tipo: Journal article
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582000000300005

An ultrasound and histomorphological analysis of experimental liver cirrhosis in rats
Provedor de dados: 56
Autores: Dias,J.V.; Paredes,B.D.; Mesquita,L.F.Q.; Carvalho,A.B.; Kozlowski,E.O.; Lessa,A.S.; Takiya,C.M.; Resende,C.M.C.; Coelho,H.S.M.; Campos-de-Carvalho,A.C.; Rezende,G.F.M.; Goldenberg,R.C.S.
We investigated whether liver injury by dual exposure to ethanol and carbon tetrachloride (EtOH + CCl4) for 15 weeks would persist after hepatotoxic agents were removed (EtOH + CCl4/8wR). After 15 weeks of hepatic injury with ethanol (5.5%, m/v) and carbon tetrachloride (0.05, mL/kg, ip), 5 of 11 female Wistar rats were sacrificed. The other 6 rats were maintained for an additional 8 weeks without hepatotoxic agents. Ultrasonography showed increased liver echogenicity and dilation of portal vein caliber in both groups (EtOH + CCl4: 0.22 ± 0.01 cm, P &lt; 0.001; EtOH + CCl4/8wR: 0.21 ± 0.02 cm, P &lt; 0.01) vs control (0.16 ± 0.02 cm). Histopathology showed regenerative nodules in both experimental groups. Histomorphometry revealed increased fibrosis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rat; Cirrhosis; Collagen; Ultrasound; CCl4; Ethanol.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001100008

An update on equine laminitis
Provedor de dados: 65
Autores: Laskoski,Luciane Maria; Valadão,Carlos Augusto Araújo; Dittrich,Rosangela Locatelli; Deconto,Ivan; Faleiros,Rafael Resende.
ABSTRACT: Laminitis is a severe podal affection, which pathophysiology remains partially renowned. Ischemic, enzymatic, metabolic and inflammatory mechanisms are connected to the development of laminar lesions. However, few therapeutic measures are effective to prevent or control the severity of acute laminitis and its prodromal stage, which often determines serious complications such as rotation and/or sinking of the distal phalanx and even the loss of hoof. The purpose of this study is to compile the actual knowledge in respect to the pathophysiology and treatment of equine laminitis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Horse; Pathophysiology; Treatment; Podal disease.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000300547

An update to the Surface Ocean CO2 Atlas (SOCAT version 2)
Provedor de dados: 5
Autores: Bakker, D. C. E.; Pfeil, B.; Smith, K.; Hankin, S.; Olsen, A.; Alin, S. R.; Cosca, C.; Harasawa, S.; Kozyr, A.; Nojiri, Y.; O'Brien, K. M.; Schuster, U.; Telszewski, M.; Tilbrook, B.; Wada, C.; Akl, J.; Barbero, L.; Bates, N. R.; Boutin, J.; Bozec, Y.; Cai, W. -j.; Castle, R. D.; Chavez, F. P.; Chen, L.; Chierici, M.; Currie, K.; De Baar, H. J. W.; Evans, W.; Feely, R. A.; Fransson, A.; Gao, Z.; Hales, B.; Hardman-mountford, N. J.; Hoppema, M.; Huang, W. -j.; Hunt, C. W.; Huss, B.; Ichikawa, T.; Johannessen, T.; Jones, E. M.; Jones, S. D.; Jutterstrom, S.; Kitidis, V.; Koertzinger, A.; Landschuetzer, P.; Lauvset, S. K.; Lefevre, N.; Manke, A. B.; Mathis, J. T.; Merlivat, L.; Metzl, N.; Murata, A.; Newberger, T.; Omar, A. M.; Ono, T.; Park, G. -h.; Paterson, K.; Pierrot, D.; Rios, A. F.; Sabine, C. L.; Saito, S.; Salisbury, J.; Sarma, V. V. S. S.; Schlitzer, R.; Sieger, R.; Skjelvan, I.; Steinhoff, T.; Sullivan, K. F.; Sun, H.; Sutton, A. J.; Suzuki, T.; Sweeney, C.; Takahashi, T.; Tjiputra, J.; Tsurushima, N.; Van Heuven, S. M. A. C.; Vandemark, D.; Vlahos, P.; Wallace, D. W. R.; Wanninkhof, R.; Watson, A. J.
The Surface Ocean CO2 Atlas (SOCAT), an activity of the international marine carbon research community, provides access to synthesis and gridded fCO(2) (fugacity of carbon dioxide) products for the surface oceans. Version 2 of SOCAT is an update of the previous release (version 1) with more data (increased from 6.3 million to 10.1 million surface water fCO(2) values) and extended data coverage (from 1968-2007 to 1968-2011). The quality control criteria, while identical in both versions, have been applied more strictly in version 2 than in version 1. The SOCAT website (http://www.socat.info/) has links to quality control comments, metadata, individual data set files, and synthesis and gridded data products. Interactive online tools allow visitors to explore...
Tipo: Text
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00291/40260/39418.pdf

An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2020
Provedor de dados: 5
Autores: Olsen, Are; Lange, Nico; Key, Robert M.; Tanhua, Toste; Bittig, Henry C.; Kozyr, Alex; Álvarez, Marta; Azetsu-scott, Kumiko; Becker, Susan; Brown, Peter J.; Carter, Brendan R.; Cotrim Da Cunha, Leticia; Feely, Richard A.; Van Heuven, Steven; Hoppema, Mario; Ishii, Masao; Jeansson, Emil; Jutterström, Sara; Landa, Camilla S.; Lauvset, Siv K.; Michaelis, Patrick; Murata, Akihiko; Pérez, Fiz F; Pfeil, Benjamin; Schirnick, Carsten; Steinfeldt, Reiner; Suzuki, Toru; Tilbrook, Bronte; Velo, Anton; Wanninkhof, Rik; Woosley, Ryan J.
The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical data, with an emphasis on seawater inorganic carbon chemistry and related variables determined through chemical analysis of seawater samples. GLODAPv2.2020 is an update of the previous version, GLODAPv2.2019. The major changes are data from 106 new cruises added, extension of time coverage to 2019, and the inclusion of available (also for historical cruises) discrete fugacity of CO2 (fCO2) values in the merged product files. GLODAPv2.2020 now includes measurements from more than 1.2 million water samples from the global oceans collected on 946 cruises. The data for the 12 GLODAP core variables (salinity, oxygen,...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00668/78015/80254.pdf

Anabolic steroid- and exercise-induced cardiac stress protein (HSP72) in the rat
Provedor de dados: 56
Autores: Lunz,W.; Oliveira,E.C.; Neves,M.T.D.; Fontes,E.P.B.; Dias,C.M.G.C.; Natali,A.J.
The present study investigated the effects of exercise and anabolic-androgenic steroids on cardiac HSP72 expression. Male Wistar rats were divided into experimental groups: nandrolone exercise (NE, N = 6), control exercise (CE, N = 6), nandrolone sedentary (NS, N = 6), and control sedentary (CS, N = 6). Animals in the NE and NS groups received a weekly intramuscular injection (6.5 mg/kg of body weight) of nandrolone decanoate, while those in the CS and CE groups received mineral oil as vehicle. Animals in the NE and CE groups were submitted to a progressive running program on a treadmill, for 8 weeks. Fragments of the left ventricle were collected at sacrifice and the relative immunoblot contents of HSP72 were determined. Heart weight to body weight ratio...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Physical activity; Nandrolone; Myocardium; Heat shock protein.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000700006

Anaerobic bio-digestion of concentrate obtained in the process of ultra filtration of effluents from tilapia processing unit
Provedor de dados: 96
Autores: Souza,Milena Alves de; Chaguri,Milena Penteado; Castelini,Fabrício Rogério; Lucas Junior,Jorge de; Vidotti,Rose Meire.
The objective of the present study was to evaluate the efficiency of the process of biodigestion of the protein concentrate resulting from the ultrafiltration of the effluent from a slaughterhouse freezer of Nile tilapia. Bench digesters were used with excrements and water (control) in comparison with a mixture of cattle manure and effluent from the stages of filleting and bleeding of tilapias. The effluent obtained in the continuous process (bleeding + filleting) was the one with highest accumulated population from the 37th day, as well as greatest daily production. Gases composition did not differ between the protein concentrates, but the gas obtained with the use of the effluent from the filleting stage presented highest methane gas average (78.05%) in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogas; Bleeding; Filleting; Freshwater-fish; Methane.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200002

Anaerobic co-digestion of cocoa husk with digested swine manure: evaluation of biodegradation efficiency in methane productivity
Provedor de dados: 111
Autores: Darwin, Darwin.
The purpose of this study was to investigate the potential of methane production from anaerobic co-digestion of coco husk with digested swine manure.  The experiment was set up in the batch system.  Inoculum utilized in this experiment was derived from semi-continuous reactor run at steady state condition, with 25 days of hydraulic retention time and mesophilic condition.  The temperature applied in this experiment was maintained under mesophilic condition, which was 35oC.  The highest methane productivity generated from anaerobic co-digestion of cocoa husks (CH) with digested swine manure was 345.8 ± 7.82 mL/day, which was higher compared with the anaerobic digestion of digested swine manure alone (286.97 ± 16.8 mL/day).  CH reactors had less methane...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anaerobic digestion; Methane production anaerobic co-digestion; Cocoa husk; Methane production; Biodegradation efficiency.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3724

Anaerobic co-digestion of crude glycerin and starch industry effluent
Provedor de dados: 70
Autores: Larsen,Andrea C.; Gomes,Benedito M.; Gomes,Simone D.; Zenatti,Dilcemara C.; Torres,Douglas G. B.
The Brazil's Biodiesel Production and Use Program introduces biodiesel in the Brazilian energy matrix, bringing along the perspective of a growth of the glycerin offer, co-product generated in the proportion of 10 kg for each 100 L of biodiesel. The aim of this study was to evaluate the addition of crude glycerin in the anaerobic digestion of cassava starch industry effluent (cassava wastewater), in a horizontal semi-continuous flow reactor of one phase in laboratory scale. It was used a reactor with a 8.77 L of useful volume, a medium support for corrugated conduit of polyvinyl chloride (PVC), temperature of 261 ºC, fed with cassava wastewater and glycerin, with hydraulic detention times of 4 and 5 days and increasing volumetric organic load of 3.05;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cassava wastewater; Biodiesel; Biogas; Glycerol.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000200013

ANAEROBIC DIGESTION STABILITY TEST BY SHEWHART CONTROL CHART
Provedor de dados: 70
Autores: Alcantara,Michael S.; Grisotti,Geovane; Tavares,Maria H. F.; Gomes,Simone D.
ABSTRACT The anaerobic digestion (AD) operation complexity raise the importance of stability testing to verify whether the operating conditions are under control and whether the process is working as required. The current method of verifying process stability is by a range of the ratio between volatile fatty acidity and total alkalinity (VFA/ TA) within which stable conditions are brought about; these rates vary with the content of organic material. A few indicators as pH or constant biogas production are also used. Therefore, the aim of this study was to propose the use of Shewhart control chart for individual measures as a stability test for AD, as well as to demonstrate its use in poultry litter AD. The method showed to be advantageous since it...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Process monitoring; Statistical process control; Waste treatment.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000300618

Anaerobic membrane bioreactors: Are membranes really necessary?
Provedor de dados: 69
Autores: Jeison,David; Díaz,Israel; van Lier,Jules B.
Membranes themselves represent a significant cost for the full scale application of anaerobic membrane bioreactors (AnMBR). The possibility of operating an AnMBR with a self-forming dynamic membrane generated by the substances present in the reactor liquor would translate into an important saving. A self-forming dynamic membrane only requires a support material over which a cake layer is formed, which determines the rejection properties of the system. The present research studies the application of self-forming dynamic membranes in AnMBRs. An AnMBR was operated under thermophilic and mesophilic conditions, using woven and non woven materials as support for the dynamic membranes. Results showed that the formation of a cake layer over the support materials...
Tipo: Journal article
Palavras-chave: Cake layer; Dynamic membrane; MBR; Woven filter.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000400001

Anais.
Provedor de dados: 14
Autores: SIMPÓSIO SOBRE ONCOVIRUS AVIÁRIOS, 1999, Concórdia.
What is a new in Marek's disease?; Doença de Marek no Brasil; Subgroup J avian leukosis virus-induced myeloid leukosis: recent developments in pathogenesis, diagnosis &amp; control; Impacto da leucose aviária na produção avícola e estratégias de controle e erradicação; Resultados de diagnóstico do virus da leucose J em linhas de corte; Pathogenesis of chicken infectious anemia virus.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ave; Oncovirus; Doença de Marek; Leucose aviaria; Avian; Diseases; Marek's disease.; Doença.; Avian leukosis.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/436888

Anais.
Provedor de dados: 14
Autores: SIMPÓSIO INTERNACIONAL SOBRE AMBIÊNCIA E SISTEMAS DE PRODUÇÃO AVÍCOLA, 1998, Concórdia.
Aspectos economicos da criacao de aves em ambientes climatizados; Aspectos economicos e viabilidade da criacao de frangos nos sistemas convencionais e automatizado; Gerenciamento do ambiente na avicultura; Sistemas de climatizacao de instalacoes avicolas; Criterios para o planejameto de instalacoes avicolas para aves de postura; Avancos na area de equipamentos para postura; Sistemas de aquecimento para aves; Misting systems for poultry - dimension and applications; Sistemas de ventilacao natural e artificial na criacao de aves; Planning broiler housing for environmental control systems; Luz: criterios para o dimensionamento de programas em aviarios de corte e alternativas para a intensidade, cor e distribuicao; Ventilation to control poultry house air...
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Ambiência; Congresso; Poultry breeding; Production system; Meeting.; Avicultura; Sistema de Produção.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433881

Anais.
Provedor de dados: 14
Autores: ENCONTRO DO CONESUL DE TÉCNICOS ESPECIALISTAS EM SISCAL, 2.; SIMPÓSIO SOBRE O SISCAL, 2., 1999, Concórdia.
Suinocultura brasileira; Perspectivas do SISCAL no CONESUL; Criacao de suinos ao ar livre no Rio Grande do Sul; La produccion porcina a campo, una alternativa real para pequenos y medianos productores agropecuarios; Perspectivas de la cria intensiva de cerdos al aire libre (CICAL) en el Uruguay; SISCAL versus meio ambiente; SISCAL x Ambiente: impacto sobre o meio ambiente; SISCAL versus meio ambiente: fertilizacao dos solos; Pastagem - cobertura vegetal ou alimentacao animal; Alimentacao de cerdos en sistemas de produccion a campo en la Republica Argentina; Pastagem, como cobertura vegetal ou alimento para suinos criados ao ar-livre?; Problemas reprodutivos no SISCAL e formas de controle; Problemas reprodutivos no sistema intensivo de suinoc criados ao ar...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Programa; Congresso; SISCAL; Production system; Computer; Program; Meeting.; Computador; Sistema de Produção; Suíno.; Swine.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/436864

Anais.
Provedor de dados: 14
Autores: SIMPÓSIO INTERNACIONAL SOBRE TECNOLOGIA DE PROCESSAMENTO E QUALIDADE DA CARNE DE AVES, 1999, Concórdia.
Recentes avancos do efeito da nutricao no crescimento especifico de componentes da carcaca de frangos de corte; Demanda de produtos nos mercados interno e externo; Relationship between broiler feed withdrawal and carcass microbiological quality; Influence of pre-slaughter events on broiler carcass quality and yields; Sistema de monitoramento para o refile de file de peito e a desossona de coxa de frango; Selection tools for the next decade; Overview of Escherichia coli (E.coli) on poultry; Practical strategies to reduce pathogens in the plant; Conceitos atuais de qualidade em produtos de frango: efeito da nutricao na fase inicial; Effects of gas and electrical stunning methods on meat quality; Atordoamento de aves em atmosfera controlada; Embalagens de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ave; Congresso; Processing; Quality; Meeting.; Carne; Processamento; Qualidade.; Poultry.; Meat.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/436889

Anais...
Provedor de dados: 14
Autores: REUNIÃO DA REDE DE LABORATÓRIOS PARA A RECOMENDAÇÃO, PADRONIZAÇÃO E DIFUSÃO DE TECNOLOGIAS DE INOCULANTES MICROBIANOS DE INTERESSE AGRÍCOLA, 17., 2014, Londrina.
Situação atual do marco regulatório sobre o acesso ao patrimônio genético frente às atividades de pesquisa e desenvolvimento de produtos biológicos. Principais atividades da coordenação de fertilizantes, inoculantes e corretivos no biênio 2012-2014. Resultados das análises da fiscalização de produtos inoculantes para leguminosas nos anos de 2012-2013 e estabelecimento de um ensaio interlaboratorial. Perspectivas de uso de inoculantes microbianos no Brasil: a visão da ANPII. A rede ?FBN_ABC?: compromisso com a promoção dos benefícios da Fixação Biológica do Nitrogênio ( FBN) através dos inoculantes. Método alternativo para contagem e viabilidade celular para inoculantes: novo horizonte baseado em citometria de fluxo. Alternativa metodológica para contagem...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Fixação de nitrogênio; Nitrogen fixation.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1044383

Analgesic effects of Marasmius androsaceus mycelia ethanol extract and possible mechanisms in mice
Provedor de dados: 56
Autores: Song,Jia; Wang,Xue; Huang,Yu; Qu,Yidi; Zhang,Guirong; Wang,Di.
Marasmius androsaceus is a medicinal fungus mainly used to treat various forms of pain in China. This study investigated the analgesic effects of an ethanol extract of M. androsaceus (MAE) and its potential molecular mechanisms. Oral administration of MAE (50, 200, and 1000 mg/kg) had significant analgesic effects in an acid-induced writhing test, a formalin test, and a hot-plate test, with effectiveness similar to tramadol (the positive control drug). The autonomic activity test showed that MAE had no harmful effects on the central nervous system in mice. MAE resulted in significantly enhanced levels of noradrenalin and 5-hydroxytryptamine in serum but suppressed both of these neurotransmitters in the hypothalamus after 30 s of hot-plate stimulation....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Marasmius androsaceus; Analgesic ability; Monoamine neurotransmitters; Calcium channels.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000400613

ANÁLISE DA ADOÇÃO DA TECNOLOGIA DA INFORMAÇÃO NA HORTICULTURA BRASILEIRA
Provedor de dados: 31
Autores: Boteon,   Margarete; Silva,   Rafaela Cristina Da; Deleo,   Joao Paulo Bernardes.
A tecnologia está mais acessível ao produtor. O valor de um computador hoje equivale a 1 tonelada de adubo (uréia). A medida que o custo da tecnologia caiu, os valores dos fatores de produção – fertilizantes e salários – subiram significamente. Assim, é vital o produtor encontrar formas de otimizar o uso de insumos e melhorar a produtividade da mão-de-obra no campo. A superação desse desafio pode ter apoio importante na tecnologia da informação. Pesquisa realizada com produtores de frutas e hortaliças observou que boa parte deles já tem acesso aos principais meios de comunicação. No entanto, o uso desses meios integrado ao sistema de produção, como controle de custos de produção e uso de ferramenta de agricultura de precisão, ainda é pequeno. A conclusão...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultura de Precisão; Tecnologia da Informação; Internet; Fruticultura; Horticultura; Precision Agriculture; Information Technology; Internet; Fruit; Vegetable; Crop Production/Industries; Farm Management.
Ano: 2008
URL: http://purl.umn.edu/112685

ANÁLISE DA CADEIA PRODUTIVA DA CAPRINO-OVINOCULTURA EM GARANHUNS
Provedor de dados: 31
Autores: Carvalho,   Daniela Moreira de; Souza,   Jalmir Pinheiro De.
A caprino-ovinocultura na região Nordeste tem grande importância tanto econômica quanto social, devido ao fato dos animais terem uma boa adaptação ao clima e a alimentação, muitas vezes escassa, disponível na região. A compreensão das cadeias produtivas locais permite a proposição de melhorias no setor a fim de torná-lo mais eficiente. Na caprino-ovinocultura a eficiência ocorre através da oferta aos consumidores de carnes de melhor qualidade, animais jovens, constância de oferta, segurança alimentar e preços competitivos. O resultado da eficiência do sistema produtivo seria de uma maior rentabilidade, uma inserção em novos mercados, ou seja, numa maior competitividade de todo setor. Nesse sentido objetivou-se realizar uma análise descritiva da cadeia...
Tipo: Conference Paper or Presentation
Palavras-chave: Caprino-ovinocultura; Cadeia produtiva; Coordenação; Caracterização; Garanhuns; Sheep &amp; goat farming; Productive chain; Coordination; Characterization; Garanhuns; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/109705

ANÁLISE DA PERCEPÇÃO DO VALOR DA INFORMAÇÃO E DO BENEFÍCIO CUSTO DA TECNOLOGIA DA INFORMAÇÃO POR SUINOCULTORES NA REGIÃO DE PASSOS, MG
Provedor de dados: 31
Autores: Silva,   Cristiane Rocha; Jesus,   Jose Carlos dos Santos.
The present article aimed at to characterize the pig farmers associated to the Regional Cooperative of Passos’ pig farmers, MG, according to the perception of the information value to the cost-benefit use of Information Technology (IT). This research has mixed the use of qualitative and quantitative collection of data techniques. In a first exploratory phase, semi-structured interviews were accomplished with 4 pig farmers and later 14 closed questionnaires were applied among the pig farmers associated to the cooperative. It was observed that the decision of adoption of IT is linked to the perception of the information value and to the benefit of control tools for the rural entrepreneurs in relation to the activity. The results allow a classification of the...
Tipo: Journal Article
Palavras-chave: Information technology use; Information value; Benefit-cost of IT.
Ano: 2007
URL: http://purl.umn.edu/43697

ANÁLISE DA PGPM NO MERCADO BRASILEIRO DE ALGODÃO EM PLUMA, MILHO E TRIGO, UTILIZANDO COMO INSTRUMENTO DE INVERVENÇÃO A AGF, CONTRATO DE OPÇÃO, PEP E PEPRO
Provedor de dados: 31
Autores: Bitencourt,   Mayra Batista; Barczsz,   Silvio Silvestre; Andrade,   Andrei Almeida.
A política agrícola e de preços mínimos, no Brasil, é baseada a partir de 1996 na criação de novos instrumentos de política agrícola, menos intervencionistas e mais orientados para o mercado como o Prêmio de Escoamento de Produtos (PEP) e o Contrato de Opções. Para este artigo, foram avaliados os instrumentos da PGPM do Governo Federal: AGF, OPÇÃO, PEP e PEPRO, e a sua utilização nas commodityes do Algodão em Pluma, Milho e Trigo, durante o período de 1994 a 2007. A análise dos dados sobre o volume dos produtos operacionalizados pelos instrumentos AGF, Contrato de Opção de Venda, PEP e PEPRO, que são os mais utilizados pelo Governo no controle de preços do mercado, e oferta de produtos, procurou-se verificar qual o grau de intervenção do Governo Federal no...
Tipo: Conference Paper or Presentation
Palavras-chave: PGPM; AGF; PEP; PEPRO; CONTRATO DE OPÇÃO DE VENDA; CONTRACT OF PUT OPTION; Agricultural and Food Policy.
Ano: 2008
URL: http://purl.umn.edu/113961

Análise da riqueza da fauna de Braconidae (Hymenoptera, Ichneumonoidea) em remanescentes naturais da Área de Proteção Ambiental (APA) de Descalvado, SP
Provedor de dados: 92
Autores: Cirelli,Kátia Resende Netto; Penteado-Dias,Angélica Maria.
Analysis of the Braconidae (Hymenoptera: Ichneumonoidea) fauna richness in natural remnants of the Área de Proteção Ambiental (APA) of Descalvado, SP. A survey of the Braconidae fauna on fragmentary natural environments at northeast São Paulo State was conducted using Malaise traps installed in five sites of Área de Proteção Ambiental of Descalvado. A total of 2,262 specimens, representing 22 subfamilies and 94 genera, was sampled throughout a period of sixteen months (from May, 1999 to August, 2000). Biological data were obtained from current literature and behavior patterns of host utilization for the studied fauna, mainly Braconidae which have been successful in control of agricultural insect pests. Statistical analyses indicated that the asymptote of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Braconidae; Brazil; Biodiversity; Fragmentary natural environments; Parasitoids.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262003000100014

ANÁLISE DA VIABILIDADE SÓCIO-AMBIENTAL DA FRUTICULTURA IRRIGADA NO BAIXO JAGUARIBE, CEARÁ
Provedor de dados: 31
Autores: Pinheiro,   Jose Cesar; Amaral,   Cecilia Reis.
A fruticultura irrigada é uma atividade que vem crescendo no Estado do Ceará, sobretudo em certas regiões favoráveis do Estado. Entre estas regiões encontra-se o Baixo Jaguaribe, onde diversas empresas exploram a fruticultura irrigada e procurou-se, nesta pesquisa, avaliar os aspectos sociais e ambientais da atividade. Os aspectos sociais foram avaliados através de entrevistas com funcionários das empresas produtoras de frutas na região e estas abrangeram aspectos como: serviços de educação e saúde nos municípios de residência, habitação, aspectos sanitários, posse de bens duráveis e emprego. Os aspectos e cuidados  ambientais das empresas foram avaliados com base em entrevistas com os técnicos responsáveis das empresas por este setor. Foram abordados nas...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultura Irrigada; Fruticultura; Desenvolvimento Sustentável; Irrigated agriculture; Irrigated fruit cultivation; Sustainable development1; Crop Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/109530

ANÁLISE DAS CONDIÇÕES DAS ESTRADAS LIGADAS AO PLANTIO FLORESTAL NOS MUNICÍPIOS DE CUNHA E GUARATINGUETÁ, SP
Provedor de dados: 25
Autores: Brandão, Roberto; Batista, Getulio; Catelani, Celso.
A crescente atividade do setor florestal voltado à produção de papel e celulose no vale do Paraíba no Estado de São Paulo tem despertado indagações sobre os potenciais impactos que essa atividade pode causar ao meio ambiente. Dentre outros pontos a serem avaliados, as estradas rurais que dão acesso aos maciços florestais de eucalipto têm ligação direta com a qualidade dos recursos hídricos existentes nas bacias onde são implantados os talhões de eucalipto, principalmente no que se refere à erosão e ao transporte de material erodido para os cursos d’água. Nesse contexto, o presente trabalho teve como objetivo analisar as condições das estradas utilizadas nos plantios de eucalipto nos municípios de Cunha e Guaratinguetá, SP. Para isso foram analisados os...
Tipo: Article
Palavras-chave: Erosão; Erosion; Estradas florestais; Eucaliptus.
Ano: 2006
URL: http://hdl.handle.net/2315/47

ANÁLISE DE CUSTO DA PRODUÇÃO DO MILHO SAFRINHA: UM ESTUDO NUMA PEQUENA PROPRIEDADE
Provedor de dados: 31
Autores: da Silva,   Rodrigo Calderao; Vaz Lopes,   Antonio Carlos.
O presente trabalho tem como objetivo analisar e demonstrar os custos de produção e de rentabilidade no cultivo do milho safrinha, tendo como meio utilizado a contabilidade, em especial a de custo, sob o enfoque gerencial, para assim auxiliar no controle e ajudar nas tomadas de decisão. Para realização da pesquisa foi utilizado o método de estudo caso, numa pequena propriedade no município de Itaporã, situado na região Sul de Mato Grosso do Sul, foram coletados dados, analisadas as operações realizadas e acompanhamento das atividades. Após estudos dos conceitos e analises dos dados coletados foram feitos os cálculos necessários propiciando assim informações para o resultado da pesquisa e auxilio ao gestor na tomada de decisão acerca da atividade....
Tipo: Conference Paper or Presentation
Palavras-chave: Custo de produção; Milho safrinha; Pequena propriedade; Agricultura familiar; Cost of production; Corn Small crop; Small property; Family farming; Crop Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/102553

Análise de patogenicidade de isolados de Chrysodeixis includens NPV para uso na produção de bioinseticidas.
Provedor de dados: 14
Autores: SANTOS, L. A. V. M.; RIBEIRO, Z. M. de A.; FERNANDES, L. S. P.; FERREIRA, A. C. de Q.; MOTA, I. de S.; GOMES, A. C. M. M.; CRAVEIRO, S. R.; CASTRO, M. E. B. de.
Chrysodeixis includens (Walker, 1858) (Lepidoptera: Noctuidae) tem sido considerada uma praga severa em lavouras como a soja e o algodão, espécies de grande importância econômica para o Brasil. Inseticidas à base de baculovírus, um grupo de vírus patogênicos a insetos, têm sido usados com sucesso para controlar lepidópteros-praga na agricultura brasileira. A multiplicação em massa do vírus para a produção comercial deve partir da seleção de isolados virais com alta virulência para resultar em um produto com alta efetividade contra a praga no campo. Dois isolados virais, obtidos de lagartas infectadas de Chrysodeixis includens em plantações de soja em Buritis-MG, foram purificados, identificados, analisados e avaliados quanto à atividade biológica por meio...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Classificação taxonômica; Taxonomic classification; Patogenicidade; Controle Biológico; Pathogenicity; Biological control.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1111134

Análise de um experimento para combate de vira-cabeça do tomateiro
Provedor de dados: 53
Autores: Fraga Jr.,C. G.; Costa,A. S.
A detailed statistical analysis of a balanced, incomplete block experiment with insecticides to control tomato spotted wilt is given. The effect of the treatments was studied in relation to stand an yield. The angular transformation was used for stand, and the analysis of stand and yield was made with and without the inter-block information. The results indicated that all insecticides tested, viz. Rhodiatox, Fosfern, Hexason 2510 M, Toxaphene, and tartar emetic reduced the number of plants killed by spotted wilt. The higher the concentration of the insecticides the better was the gain in stand. Some insecticides had a detrimental effect on the plant, at, high concentrations. In relation to yield the treatments could be placed in two groups : a) a group in...
Tipo: Info:eu-repo/semantics/article
Ano: 1950
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051950001000004

Análise do desenvolvimento do fungo entomopatogênico Metarhizium anisopliae em resposta a fatores nutricionais - DOI: 10.4025/actasciagron.v25i2.2064
Provedor de dados: 1
Autores: Jabor, Izabel Aparecida Soares; UEM; Pamphile, João Alencar; UEM; Rodrigues, Suzymeire Baroni; UEM; Marques-Silva, Giuliani Grazyella; UEM; Rocha, Carmem Lucia M. Sartori Cardoso da; UEM.
Metarhizium anisopliae é o fungo entomopatogênico melhor caracterizado, sendo usado no controle de grande número de insetos-praga, como carrapatos, cigarrinha da canade- açúcar e das pastagens. O presente trabalho objetivou analisar seu desenvolvimento vegetativo e esporulação em resposta à composição nutricional do meio de cultura. Para análise do ciclo vegetativo, foram medidos os diâmetros de colônias de cada linhagem em meio completo, meio Saboraud e meio batata-dextrose-agar (PDA) após 15 dias a 28oC. Para avaliação da esporulação, recortes dessas colônias foram transferidos para 0,01% Tween 80 e os esporos foram contados em hematímetro. O crescimento vegetativo foi maior em meio Saboraud e, para a esporulação, três linhagens responderam melhor ao...
Palavras-chave: 5.00.00.00-4    Ciências Agrárias Metarhizium anisopliae; Desenvolvimento vegetativo; Esporulação; Nutrição 5.00.00.00-4    Ciências Agrárias.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2064

Análise do manancial e da pescaria de Magumba, Hilsa kelee (Cuvier, 1829) na Baía de Maputo, Moçambique, no período de 1992-2010
Provedor de dados: 20
Autores: Inacio, A.; Barros, P.C.
Foi feita uma avaliação da pescaria e do manancial de Hilsa kelee (magumba) na Baía de Maputo em Janeiro de 2011. Para a avaliação, foram aplicados dois tipos de modelos, um modelo dinâmico de produção geral baseado no modelo logístico de Schaefer, usando os dados de captura e índices de abundância, modelos baseados na composição por comprimentos e um modelo de podução por recruta por comprimentos com uma série de dados do período de 1992-2010. Os níveis de esforço de pesca mais elevados foram registados no ano de 2007 e o menor em 2009. As capturas totais estimadas para o período de 2006 a 2010 apresentam níveis abaixo das 3.000 t. O valor estimado mais baixo, cerca de 1.100 t, foi para o ano de 2009. A CPUE mostra um nível baixo em 2007 (119 kg por dia...
Tipo: Journal Contribution
Palavras-chave: Fish stocks; Stock assessment.
Ano: 2012
URL: http://hdl.handle.net/1834/5141

Análise do perfil esterásico como indicador da resistência do carrapato dos bovinos à carrapaticidas.
Provedor de dados: 14
Autores: PEREIRA, C. D.
bitstream/item/76605/1/comtec-166.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Riphicephalus (Boophilus) microplus; Controle; Tick; Acaricide resistence.; Carrapato; Ácaro; Parasito de animal; Acaricida; Bovino; Sanidade Animal.; Control methods.; Cattle.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/881662

Análise econômica da aplicação de herbicidas na cultura da pimenta-do-reino no município de Altamira, PA.
Provedor de dados: 14
Autores: CARVALHO, R. de A.; HOEFLICH, V. A.; VIEIRA, G.; REIS, R. P.
bitstream/item/57561/1/Belem-Doc15.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pimenta-do-reino; Controle; Altamira; Pará; Brasil; Black papper; Herbicide; Economy; Yield; Production; Control; Weed.; Economia; Erva Daninha; Herbicida; Piper Nigrum; Produtividade; Produção.; Amazonia.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379307

Análise estatística do ensaio de variedades de café
Provedor de dados: 53
Autores: Stevens,W. L.
This paper describes the statistical analysis of a varietal trial with two unusual characteristics : (i) The plant (coffee) is one of those which show strong maxima and minima of production in alternate years. This phenomenon must be prevented from masking or biasing the other varietal comparisons in which we are interested. (ii) The design of the experiment is systematic. It was laid down in Campinas, Brazil, in 1933 at a time when the principles of randomisation were not so widely known as they are today. THE EXPERIMENT AND DATA. Six varieties are compared, denoted by A B C D E and F (see page 104). They are planted in thirty rows, each with 50 plants, according to the systematic design : A B C D E F A B C D E F A B C D E F A B C D E F A B C D E F Data...
Tipo: Info:eu-repo/semantics/article
Ano: 1949
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051949000200002

Análise morfométrica das células de cloro de Poecilia vivípara expostas a frações da folha e da casca do caule de Caryocar brasiliensis - DOI: 10.4025/actascibiolsci.v25i1.2107
Provedor de dados: 3
Autores: Silva, Luciana Damacena; UFG; Nascimento, Valdirene do; UFG; Santos, Suzana Costa; UFG; Morais, José Oscar Rodrigues de; UFG; Morais, Simone Maria Teixeira de Saboia; UFG.
Frações da folha e casca de pequi (Caryocar brasiliensis), testadas como moluscicidas, combateram o hospedeiro intermedário da esquistossomose. O nicho ecológico desse molusco está associado a mananciais de água. Além disso foi verificada a ação fungiotóxica da fração acetato de etila (folha), que apresentou elevada atividade frente ao fungo Paracoccidioides brasiliensis. Utilizou-se o epitélio branquial de Poecilia vivípara (Cyprinodontiformes, Poeciliidae), para testar a toxicidade dessas frações para células animais. Análises quantitativas demonstraram redução da densidade numérica das células de cloro expostas às frações da folha e aumento das expostas à casca. A folha e a casca causaram a redução da área das células de cloro (CC) no filamento...
Palavras-chave: 2.01.00.00-0    Biologia Geral célula de cloro; Guaru; Moluscicida; Morfometria; Pequi 2.01.00.00-0    Biologia Geral.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2107

Análisis comparativo del estado trófico  de las aguas en la costa oriental de la provincia de Cienfuegos, Cuba.
Provedor de dados: 20
Autores: Seisdedo, M.; Moreira, A.; Arencibia, G.; Pérez, I.
El propósito de este trabajo es evaluar el estado trófico de las aguas en la costa oriental de la provincia de  Cienfuegos, a partir de las concentraciones de nutrientes y del fitoplancton. Se utilizaron dos métodos de  evaluación del estado trófico y se consideraron los resultados de nitrógeno inorgánico (NI), fósforo inorgánico  (FI), Si y fitoplancton, los cuales se obtuvieron durante cuatro campañas de muestreo llevadas a cabo en el  período 2006-2007. Se analizó la proporción elemental disponible Si/NI según criterio de Redfield, así como  también se obtuvieron los coeficientes de correlaciones  entre las concentraciones de nutrientes y  fitoplancton. Los resultados mostraron al Si como el nutriente más disponible en el área de estudio y a las...
Tipo: Journal Contribution
Palavras-chave: Trophic status; Nutrients (mineral); Phytoplankton; Coastal zone.
Ano: 2010
URL: http://hdl.handle.net/1834/4529

Análisis Comparativo del Número de Neurofilamentos en Nervios Isquiáticos de Rata Sometidos a Neuropraxia Tratadas con Láser de Baja Intensidad y Ultrasonido Terapéutico
Provedor de dados: 77
Autores: Matamala,F; Cornejo,R; Paredes,M; Farfán,E; Garrido,O; Alves,N.
Es habitual que tras una compresión nerviosa se aplique terapia, ya sea, a través de laser de baja intensidad (LBI) o ultrasonido (US). El objetivo de este trabajo fue determinar la efectividad de dichos tratamientos para reparar el citoesqueleto neuronal evaluando la variación en el número de neurofilamentos. Se realizó un diseño experimental, en el cual se utilizaron 30 ratas que fueron separadas en 6 grupos: 1- control sano; 2- control lesionado; 3- irradiado con LBI 2J/cm2; 4- irradiado con LBI 10 J/cm2; 5- irradiado con US 0,5W/cm2 y 6- irradiado con US 1W/cm2. Con excepción del grupo 1 los especímenes fueron anestesiados y se les realizó la compresión del nervio isquiático derecho utilizando una presión de 40N durante 45 segundos. Veinticuatro horas...
Tipo: Journal article
Palavras-chave: Nervio isquiático; Compresión nerviosa; Neurofilamentos; Terapia por láser de baja intensidad.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100058

Análisis de anticuerpos antifosfolipídicos y cistatina C en pacientes con esclerosis múltiple
Provedor de dados: 38
Autores: Arrobas Velilla,Teresa; García Sánchez,María Isabel; González Rodríguez,Concepción; Bermudo Guitarte,Carmen; Izquierdo Ayuso,Guillermo; Fabiani Romeroa,Fernando.
La cistatina C es considerada el inhibidor fisiológico más importante de las proteasas de cisteína endógenas. Se cree que el papel de la cistatina C es el de modular la actividad de las proteasas secretadas o liberadas de células dañadas o en proceso de necrosis, siendo por tanto las cistatinas fundamentales para los procesos de regulación y prevención del potencial daño proteolítico local. Los anticuerpos antifosfolípidos se usan para esclarecer el diagnóstico de esclerosis múltiple (EM) ya que existen patologías que pueden cursar con sintomatología o hallazgos paraclínicos semejantes. El objetivo de este trabajo fue analizar la concentración de cistatina C y la presencia o ausencia de anticuerpos antifosfolipídicos en pacientes diagnosticados de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Esclerosis múltiple; Anticuerpos antifosfolipídicos; Cistatina C; Desmielinización; Bandas oligoclonales; Proteinasas de cisteína; Líquido cefalorraquídeo.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572013000300006

Análisis de desempeño de laboratorios clínicos en la determinación de glucosa y creatinina
Provedor de dados: 38
Autores: Acosta García,Edgar José; Peñate,Eloina; Cruces,María Elena.
Los Programas de Evaluación Externa de la Calidad (PEEC) de los laboratorios clínicos (LC) son indispensables para la comparación del desempeño en una o varias determinaciones de analitos entre diferentes laboratorios. Se evaluó el desempeño de los LC del estado Carabobo en la determinación de las concentraciones séricas de glucosa y creatinina. El estudio fue no experimental, descriptivo, de campo y de corte transversal. Se evaluaron 22 laboratorios entre públicos y privados del estado Carabobo. Se distribuyeron a cada LC 5 sueros controles (SC) nivel I (NI) y 5 nivel II (NII) para glucosa y creatinina. Se evaluó la imprecisión intra- e interlaboratorios, el sesgo y el error total de los resultados. No hubo LC con competencia para la determinación de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Precisión; Intralaboratorio; Interlaboratorios; Confiabilidad.
Ano: 2017
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572017000100014

Análisis de la capacidad de gestión local y administración de recursos económicos en proyectos de inversión social de la Federación de Nacionalidades Kichwas del Napo
Provedor de dados: 122
Autores: Cerda, Carmen Elisa.
En la presente investigación, lo que se pretende es realizar un “Análisis de la Capacidad de Gestión Local y la Administración de los Recursos Económicos en Proyectos de Inversión social de la FONAKIN “ Esta organización , durante el proceso de desarrollo de sus comunidades de base ha suscrito varios convenios para la ejecución de proyectos de desarrollo social y por lo que es necesario conocer sus particularidades respecto de su capacidad de gestión en ámbitos como el manejo de los recursos financieros, las metodología, la asistencia técnica , identificando los elementos que determinen las debilidades y fortalezas, en la gestión administrativa.  De igual forma la presente tesina busca identificar que tipos de inversiones han realizado las Organizaciones...
Tipo: Tesina
Palavras-chave: GESTIÓN LOCAL; ADMINISTRACIÓN PÚBLICA; RECURSOS ECONÓMICOS; PROYECTOS DE INVERSIÓN; DESARROLLO LOCAL; CONVENIOS DE COOPERACIÓN; FEDERACIÓN DE NACIONALIDADES KICHWAS DEL NAPO (FONAKIN); PROVINCIA DEL NAPO; ECUADOR; LOCAL MANAGEMENT; PUBLIC ADMINISTRATION; ECONOMIC RESOURCES; INVESTMENT PROJECTS; LOCAL DEVELOPMENT; COOPERATION AGREEMENTS; ORGANIZACIONES INDÍGENAS; INDIGENOUS ORGANIZATIONS; ORGANIZACIONES NO GUBERTAMENTALES (ONG); NON-GOVERNMENTAL ORGANIZATIONS.
Ano: 2011
URL: http://hdl.handle.net/10469/3917

Análisis de la capacidad de gestión local y administración de recursos económicos en proyectos de inversión social de la Federación de Nacionalidades Kichwas del Napo
Provedor de dados: 122
Autores: Cerda, Carmen Elisa.
En la presente investigación, lo que se pretende es realizar un “Análisis de la Capacidad de Gestión Local y la Administración de los Recursos Económicos en Proyectos de Inversión social de la FONAKIN “ Esta organización , durante el proceso de desarrollo de sus comunidades de base ha suscrito varios convenios para la ejecución de proyectos de desarrollo social y por lo que es necesario conocer sus particularidades respecto de su capacidad de gestión en ámbitos como el manejo de los recursos financieros, las metodología, la asistencia técnica , identificando los elementos que determinen las debilidades y fortalezas, en la gestión administrativa.  De igual forma la presente tesina busca identificar que tipos de inversiones han realizado las Organizaciones...
Tipo: Tesina
Palavras-chave: GESTIÓN LOCAL; ADMINISTRACIÓN PÚBLICA; RECURSOS ECONÓMICOS; PROYECTOS DE INVERSIÓN; DESARROLLO LOCAL; CONVENIOS DE COOPERACIÓN; FEDERACIÓN DE NACIONALIDADES KICHWAS DEL NAPO (FONAKIN); PROVINCIA DEL NAPO; ECUADOR; LOCAL MANAGEMENT; PUBLIC ADMINISTRATION; ECONOMIC RESOURCES; INVESTMENT PROJECTS; LOCAL DEVELOPMENT; COOPERATION AGREEMENTS; ORGANIZACIONES INDÍGENAS; INDIGENOUS ORGANIZATIONS; ORGANIZACIONES NO GUBERTAMENTALES (ONG); NON-GOVERNMENTAL ORGANIZATIONS.
Ano: 2011
URL: http://hdl.handle.net/10469/3917

Análisis de la información de infraestructura hidroagrícola en distritos de riego.
Provedor de dados: 32
Autores: Tovar Tapia, Víctor Gregorio.
México ocupa el sexto lugar mundial en términos de superficie con infraestructura de riego con 6.46 millones de hectáreas, de las cuales el 54% corresponde a 85 Distritos de Riego (DR), y el restante a más de 39 mil Unidades de Riego (UR).Por lo anterior surge la inquietud de cuantificar con exactitud la infraestructura para su control, mantenimiento y actualización, ya que en la actualidad en algunos casos la información con la que cuenta la Comisión Nacional del Agua (CONAGUA)posiblemente no ha sido actualizada oportunamente. El objetivo del presente análisis es comparar la información sobre infraestructura agrícola que existe en forma oficial y la obtenida a través de sistemas de información geográfica (SIG) con que cuenta la misma CONAGUA y evaluar la...
Palavras-chave: Canales; Drenes; Estructuras hidroagrícolas; SIG; Superficie agrícola; Channels; Drains; Hydro structures; GIS; Agricultural area; Hidrociencias; Maestría Tecnológica.
Ano: 2013
URL: http://hdl.handle.net/10521/2069

Análisis de la probabilidad de dispersión de polen de maíz genéticamente modificado usando el modelo HYSPLIT
Provedor de dados: 115
Autores: Robayo-Avendaño,Angélica; Galindo-Mendoza,María G.
El desarrollo de Organismos Genéticamente Modificados (OGM) es una alternativa eficiente para el control de plagas en el sector agrícola, pero su aplicación en cultivos de maíz (Zea mays L.) ha generado preocupación por proteger la riqueza genética de parientes silvestres. Por ello, las evaluaciones en este tipo de cultivos se orientan a controlar probables dispersiones de polen de maíz Genéticamente Modificado (GM) hacia parientes silvestres. Aunque los valores de distancias de aislamiento se consideran como parámetros para establecer criterios de bioseguridad, es necesario respaldar más las distancias adoptadas. Por lo tanto, el objetivo de este estudio fue analizar de forma espacial la dispersión de partículas de polen de maíz GM. Para ello, se...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Maíz; Modelo HYSPLIT; Polinización.
Ano: 2014
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952014000500005

Análisis de la sensibilidad de biotipos de Lolium multiflorum a herbicidas inhibidores de la enzima ALS, ACCasa y Glifosato
Provedor de dados: 87
Autores: Diez De Ulzurrun,P.; Leaden,M.I.
A pesar de los avances logrados en el control de las malezas con el uso de herbicidas, el manejo de las mismas no se simplificó, sino que, al contrario, surgieron nuevos desafíos, como la aparición de resistencia a herbicidas. En 2007, se reportó en Lolium multiflorum el segundo caso de resistencia a glifosato detectado en Argentina. En el sudeste de la provincia de Buenos Aires se registraron fallas de control a campo en poblaciones de Lolium multiflorum debido a su resistencia a distintos herbicidas de las familias de los inhibidores de ALS y de ACCasa y al herbicida glifosato. El objetivo de este estudio fue caracterizar el nivel de resistencia a ciertos herbicidas inhibidores de la ALS y de la ACCasa y al glifosato en una población de L. multiflorum de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Raigrás; Resistencia múltiple; Bioensayos; Sudeste bonaerense.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582012000300024

Análisis de la situación actual de la producción de maíz y de la pluriactividad de los agricultores en el Valle de Puebla.
Provedor de dados: 32
Autores: Osorio García, Nemesio.
En México el maíz es el cultivo más importante debido a que es la base de la alimentación de la población y porque actualmente se le considera como materia prima para la industria. Lo anterior hace necesaria una mayor producción de este grano para garantizar la seguridad alimentaria de los mexicanos. Por lo tanto es necesario analizar la situación actual de la producción de maíz a diferentes niveles, incluyendo el regional, para hacer propuestas que nos permitan incrementar la producción de este grano básico. En el Valle de Puebla los rendimientos de maíz son bajos comparados con los resultados experimentales en este cultivo. Los objetivos de esta investigación fueron determinar cuál es la situación actual de la utilización, oferta y demanda de la...
Palavras-chave: Adopción; Oferta y demanda de tecnología; Productividad; Valle de Puebla; Technology adoption; Offer and demand; Pluriactivity; Maestría; EDAR; Estrategias para el Desarrollo Agrícola Regional.
Ano: 2010
URL: http://hdl.handle.net/10521/130

Análisis de la situación actual de la producción de maíz y de la pluriactividad de los agricultores en el Valle de Puebla.
Provedor de dados: 32
Autores: Osorio García, Nemesio.
En México el maíz es el cultivo más importante debido a que es la base de la alimentación de la población y porque actualmente se le considera como materia prima para la industria. Lo anterior hace necesaria una mayor producción de este grano para garantizar la seguridad alimentaria de los mexicanos. Por lo tanto es necesario analizar la situación actual de la producción de maíz a diferentes niveles, incluyendo el regional, para hacer propuestas que nos permitan incrementar la producción de este grano básico. En el Valle de Puebla los rendimientos de maíz son bajos comparados con los resultados experimentales en este cultivo. Los objetivos de esta investigación fueron determinar cuál es la situación actual de la utilización, oferta y demanda de la...
Palavras-chave: Adopción; Oferta y demanda de tecnología; Productividad; Valle de Puebla; Technology adoption; Offer and demand; Pluriactivity; Maestría; EDAR; Estrategias para el Desarrollo Agrícola Regional.
Ano: 2010
URL: http://hdl.handle.net/10521/130

Análisis de la situación actual de seguridad alimentaria nutricional en el municipio de San Ramón, departamento Matagalpa, durante el año 2009.
Provedor de dados: 32
Autores: Gutiérrez Sequeira, Martha Deyanire.
El tema de Seguridad Alimentaria Nutricional en Nicaragua se ha venido abordando de forma dispersa, con metodologías de trabajo diferentes y sin un control efectivo desde el punto de vista institucional, lo cual obstaculiza estrategias efectivas y coordinadas que apunten a la reducción de la pobreza e inseguridad alimentaria. El objetivo de la presente investigación fue analizar la situación actual de Seguridad Alimentaria Nutricional en el municipio de San Ramón durante el año 2009. El tipo de muestreo utilizado fue aleatorio simple, obteniendo como resultado una muestra estadística de 383 encuestas (familias) distribuidas de manera proporcional en las seis micro regiones que componen el municipio de San Ramón. Para obtener un estudio integral en materia...
Palavras-chave: Seguridad alimentaria nutricional; Disponibilidad de alimentos; Acceso; Consumo y aprovechamiento biológico; Food security and nutrition; Food availability; Access; Consumption and biological utilization; Maestría Teconológica; Desarrollo Rural Territorial Sustentable CP-UNAN.
Ano: 2011
URL: http://hdl.handle.net/10521/584

Análisis de la situación actual de seguridad alimentaria nutricional en el municipio de San Ramón, departamento Matagalpa, durante el año 2009.
Provedor de dados: 32
Autores: Gutiérrez Sequeira, Martha Deyanire.
El tema de Seguridad Alimentaria Nutricional en Nicaragua se ha venido abordando de forma dispersa, con metodologías de trabajo diferentes y sin un control efectivo desde el punto de vista institucional, lo cual obstaculiza estrategias efectivas y coordinadas que apunten a la reducción de la pobreza e inseguridad alimentaria. El objetivo de la presente investigación fue analizar la situación actual de Seguridad Alimentaria Nutricional en el municipio de San Ramón durante el año 2009. El tipo de muestreo utilizado fue aleatorio simple, obteniendo como resultado una muestra estadística de 383 encuestas (familias) distribuidas de manera proporcional en las seis micro regiones que componen el municipio de San Ramón. Para obtener un estudio integral en materia...
Palavras-chave: Seguridad alimentaria nutricional; Disponibilidad de alimentos; Acceso; Consumo y aprovechamiento biológico; Food security and nutrition; Food availability; Access; Consumption and biological utilization; Maestría Tecnológica; Desarrollo Rural Territorial Sustentable CP-UNAN.
Ano: 2011
URL: http://hdl.handle.net/10521/584

Análisis de las consecuencias del comportamiento adaptativo individual sobre la estabilidad poblacional: El caso del forrajeo óptimo
Provedor de dados: 97
Autores: VALDOVINOS,FERNANDA S; URBANI,PASQUINELL; RAMOS-JILIBERTO,RODRIGO.
Trabajos tempranos basados en la teoría de Sistemas Dinámicos, demostraron que mientras mayor sea el número de poblaciones en interacción ecológica, el sistema tiende a ser más inestable. Sin embargo, la evidencia empírica indica que las poblaciones naturales presentan más frecuentemente dinámicas estables, aun estando inmersas en comunidades complejas. Entre los mecanismos que promueven la estabilización poblacional, se encuentra el comportamiento adaptativo de los individuos componentes de las poblaciones. En este trabajo se analizan los avances teóricos respecto del rol del forrajeo óptimo (FO) como fuerza estabilizadora de las dinámicas poblacionales, en comunidades modelo de diferente nivel de complejidad estructural. El análisis se organiza en torno...
Tipo: Journal article
Palavras-chave: Comportamiento adaptativo; Dieta; Modelos poblacionales; Optimización; Plasticidad fenotípica.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000200001

Análisis de las políticas agrícolas aplicadas en el Ecuador en los noventas desde la perspectiva de la soberanía alimentaria
Provedor de dados: 122
Autores: Bravo Robles, Ana Lucía.
La soberanía alimentaria desde un enfoque teórico, es un concepto formulado por la Vía Campesina, en 1996,  que  busca situar como actores centrales de la agricultura a las comunidades y pueblos: campesinos, indígenas, pescadores y recolectores; quienes para recuperar el control de la producción de alimentos deben tener el control de los recursos productivos: tierra, agua, semillas. La soberanía alimentaria surge como una respuesta alternativa a las políticas agrícolas de tendencia neoliberal aplicadas en los países del sur.
Tipo: Tesis
Palavras-chave: POLÍTICA AGRARIA; REFORMA AGRARIA; NEOLIBERALISMO; AGRICULTURA; PRODUCCIÓN AGRÍCOLA; ECUADOR.
Ano: 2009
URL: http://hdl.handle.net/10469/1131

Análisis de las unidades de riego con aprovechamiento superficial en la Cuenca Lerma Chapala, México.
Provedor de dados: 32
Autores: González Covarrubias, Galdino Daniel.
En el presente estudio se realizó el análisis de las Unidades de Riego con aprovechamiento superficial en la Cuenca Lerma Chapala, México, a través de la georrefenciación y caracterización de la infraestructura hidroagrícola, padrón de usuarios y catastro, integrándolos en un Modelo de Sistema de Información Geográfica (SIG). Esto permitió conocer en forma precisa la información relevante de dichas Unidades. Se caracterizaron 1,364 unidades de riego con un total de 56,266 usuarios que detentan 114,975.26 hectáreas. La longitud de la red de conducción es de 2,435 km y la longitud de la red de drenaje es de 2,643 km, y 34,965 estructuras de control.  La integración de las capas de información generadas en formato shape-file (*.shp) al Modelo de SIG de la...
Palavras-chave: Modelación; SIG; Riego; Agua; Sustentabilidad; Cuenca; Modeling; GIS; Irrigation; Water; Sustainability; Watershed; Hidrociencias; Maestría Tecnológica.
Ano: 2013
URL: http://hdl.handle.net/10521/2072

Análisis de orina: estandarización y control de calidad
Provedor de dados: 38
Autores: Fernández,Diego Javier; Di Chiazza,Sofía; Veyretou,Fernando Pedro; González,Liliana Mónica; Romero,.
El examen de orina completa data de los tiempos de Hipócrates. En la actualidad se basa en la utilización de tiras reactivas y la visualización al microscopio, careciendo de una estandarización actualizada y control de calidad. En el presente trabajo se realizó un estudio comparativo entre observadores, estandarizando el proceso y elaborando una solución control junto con una colección fotográfica del sedimento para enseñanza, entrenamiento y control interno. Se evaluaron 200 muestras de orinas de pacientes al azar. Los parámetros fisicoquímicos se determinaron en un equipo Urisys 2400 (Roche). El análisis microscópico fue realizado por dos operadores experimentados. Se preparó una solución control positiva de los parámetros usuales de tiras reactivas. Los...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Control de calidad; Análisis de orina completa; Tiras reactivas; Estandarización.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572014000200006

Análisis de peligros y evaluación de riesgos en productos pesqueros sensíbles comercializados en el Uruguay
Provedor de dados: 20
Autores: Bertullo, E.
Los productos pesqueros se han catalogado en general como alimentos sensibles desde el punto de vista del riesgo alimentario y dada la aparición de entidades mórbidas de origen pesquero que pueden definirse como “emergentes”, se ha considerado necesaria una actualización de la información científica disponible. Ello abarca los riesgos que para los consumidores nacionales pueden tener potencialmente un grupo de alimentos derivados de animales acuáticos, los cuales luego de acondicionados, elaborados o transformados tecnológicamente, empacados e identificados se vuelcan al mercado como productos pesqueros. Para ello, teniendo en cuenta las directrices en materia de análisis de riesgo y a la información disponible se efectuó este análisis descriptivo de la...
Tipo: Report
Palavras-chave: Health and safety; Risks; Processed fishery products.
Ano: 2006
URL: http://hdl.handle.net/1834/1580

Análisis de una política pública de combate a la pobreza y desarrollo rural: Proyecto estratégico para la seguridad alimentaria en el estado de Puebla 2010.
Provedor de dados: 32
Autores: González Ramos, Efraín.
El problema de la pobreza y el desarrollo rural en nuestro país es un tema que debe estar presente en la agenda de investigación de las universidades y centros de investigación especializada, así como ser un problema de atención prioritaria de los gobiernos en sus distintos niveles. El desarrollo de investigaciones en la materia que conduzcan al rediseño o elaboración de nuevas políticas públicas, constituirían el mejor binomio para logar superar dichos retos. El presente trabajo hace una revisión del Proyecto Estratégico para la Seguridad Alimentaria (PESA) desde la perspectiva del Análisis de las Políticas Públicas, mostrando los mecanismos de focalización del programa, la correspondencia con los postulados teóricos que respaldaron su elaboración y los...
Palavras-chave: Alimentación; México; Políticas públicas; Seguridad alimentaria; Food; Public policy; Security food; Estrategias para el Desarrollo Agrícola Regional; EDAR; Maestría.
Ano: 2012
URL: http://hdl.handle.net/10521/1843

Análisis del gasto tributario y propuestas de incentivos fiscales a la inversión y al empleo en Ecuador
Provedor de dados: 122
Autores: Jorratt de Luis, Michel.
Este estudio analiza los gastos tributarios en Ecuador, con énfasis en aquellos destinados a promover la inversión y el empleo. De esta manera, se identifican y miden los gastos tributarios relacionados con el IVA y el Impuesto a la Renta y, en base a estos resultados, se realizan propuestas de políticas de incentivos tributarios enfocadas a la generación de inversión y fomento del empleo. Además, se delinea el marco institucional necesario para la introducción, permanencia, transparencia y control de los gastos tributarios.
Tipo: Artículo
Palavras-chave: GASTO TRIBUTARIO; INCENTIVOS FISCALES; INVERSIÓN PÚBLICA; EMPLEO; ECUADOR; TAX EXPENSE; TAX INCENTIVES; PUBLIC INVESTMENT; EMPLOYMENT.
Ano: 2010
URL: http://hdl.handle.net/10469/3870

Análisis del gasto tributario y propuestas de incentivos fiscales a la inversión y al empleo en Ecuador
Provedor de dados: 122
Autores: Jorratt de Luis, Michel.
Este estudio analiza los gastos tributarios en Ecuador, con énfasis en aquellos destinados a promover la inversión y el empleo. De esta manera, se identifican y miden los gastos tributarios relacionados con el IVA y el Impuesto a la Renta y, en base a estos resultados, se realizan propuestas de políticas de incentivos tributarios enfocadas a la generación de inversión y fomento del empleo. Además, se delinea el marco institucional necesario para la introducción, permanencia, transparencia y control de los gastos tributarios.
Tipo: Artículo
Palavras-chave: GASTO TRIBUTARIO; INCENTIVOS FISCALES; INVERSIÓN PÚBLICA; EMPLEO; ECUADOR; TAX EXPENSE; TAX INCENTIVES; PUBLIC INVESTMENT; EMPLOYMENT.
Ano: 2010
URL: http://hdl.handle.net/10469/3870

Analisis del sistema panameno de investigacion agropecuaria
Provedor de dados: 31
Autores: Ekboir,   Javier M.; de Herrera,   Adys Pereira; Becerra,   Franklin.
Panamá tiene una economía dual con unas pocas actividades altamente competitivas y otras que se desarrollaron gracias a políticas de sustitución de importaciones. Estas políticas influyeron sobre el sistema público de  investigación. Durante 15 años, los objetivos más importantes de este sistema fueron el apoyo a productores que vendían en el mercado interno y el fomento de las actividades tradicionales de exportación. La  competitividad y la comercialización no eran relevantes. Así, las instituciones de investigación desarrollaron programas para los productos tradicionales de los pequeños y medianos productores (granos básicos y ganadería).  La estabilidad de las políticas proteccionistas y el deficiente control de la calidad de la investigación...
Tipo: Working or Discussion Paper
Palavras-chave: Panama; Research and Development/Tech Change/Emerging Technologies.
Ano: 2003
URL: http://purl.umn.edu/7679

Analisis del sistema Paraguayo de investigacion agropecuaria
Provedor de dados: 31
Autores: Ekboir,   Javier M.; Parellada,   Gabriel H.; Molina,   Andres; Duarte,   Cesar.
En la década del 90, el Gobierno paraguayo implementó, con poco éxito, varios planes de reforma del Estado. Actualmente conviven en Paraguay un Estado muy centralizado, con poca capacidad de implementar políticas modernas, y una economía muy descentralizada (a veces completamente fuera del control del gobierno y de la policía), que evoluciona gracias a las acciones e interacciones de agentes individuales y a las oportunidades creadas por la integración a los mercados fronterizos, tanto en los rubros comerciales como agropecuarios. Pero por la espontaneidad propia de este proceso de desarrollo, importantes sectores de la sociedad han quedado marginados. A pesar de la importancia del sector agropecuario en la economía paraguaya, han sido pocos los esfuerzos...
Tipo: Working or Discussion Paper
Ano: 2003
URL: http://purl.umn.edu/48282

Análisis del Voltinismo y la Diapausa en Poblaciones de Apagomerella versicolor (Coleoptera: Cerambycidae) en el Gradiente Latitudinal de su Distribución en la Argentina
Provedor de dados: 99
Autores: Logarzo,Guillermo; Gandolfo,Daniel E.
RESUMEN. Apagomerella versicolor es un cerambícido cuyas larvas barrenan los tallos de plantas compuestas de los géneros Xanthium, Ambrosia y Pluchea (Asteraceae). En la Argentina se distribuye entre los 25º y 39º de LS. Estudios sobre la biología de este insecto realizados con poblaciones de los alrededores de Buenos Aires (35º S), indicaban que era una especie univoltina con diapausa larval durante el invierno y que se podía inducir la salida del estado de diapausa exponiendo las larvas a bajas temperaturas. Sin embargo algunas observaciones sugerían que poblaciones del norte del país podían ser bi o multivoltinas sin diapausa larval. En este trabajo estudiamos el voltinismo y la diapausa en una clina latitudinal entre los 25 y los 32º de LS. Se realizó...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerambícido; Razas geográficas; Asteraceae; Barrenador de tallos; Xanthium cavanillesii; Pluchea sagittalis.
Ano: 2005
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802005000200015

Análisis dialélico para rendimiento en líneas de maíz con alta calidad de proteína.
Provedor de dados: 32
Autores: Andrés Meza, Pablo.
Durante el ciclo agrícola primavera-verano 2008, se establecieron en el Campo Experimental Cotaxtla, Veracruz, México, dos ensayos, 1) evaluación y selección de líneas con base en su comportamiento per se  y 2) evaluación y selección de cruzas dialélicas, con base en su aptitud combinatoria general (ACG), aptitud combinatoria específica (ACE) y heterosis. El diseño fue un alfa látice 4x8 y 16x8 con dos repeticiones. Los resultados muestran un grupo de líneas con alta calidad de proteína, con buen comportamiento per se, como: (VS-536xV-537C)VS-536RC2-1-1-959 (VS-536), (VS-536xV-537C)VS-536RC2-1-1-960 (VS-536), (VS-536xV-537C)VS-536RC2-1-1-952 (VS-536-) y (VS-536xV-537C)VS-536RC2-1-1-953 (VS-536), similares a las líneas de referencia LT-155-289 y LT-157-291...
Palavras-chave: Zea mays L.; Selección per se; Cruzas; Aptitud combinatoria; Proteína; Selection per se; Cross; Combining ability; Protein; Maestría; Agroecosistemas Tropicales.
Ano: 2010
URL: http://hdl.handle.net/10521/207

Análisis dialélico para rendimiento en líneas de maíz con alta calidad de proteína.
Provedor de dados: 32
Autores: Andrés Meza, Pablo.
Durante el ciclo agrícola primavera-verano 2008, se establecieron en el Campo Experimental Cotaxtla, Veracruz, México, dos ensayos, 1) evaluación y selección de líneas con base en su comportamiento per se  y 2) evaluación y selección de cruzas dialélicas, con base en su aptitud combinatoria general (ACG), aptitud combinatoria específica (ACE) y heterosis. El diseño fue un alfa látice 4x8 y 16x8 con dos repeticiones. Los resultados muestran un grupo de líneas con alta calidad de proteína, con buen comportamiento per se, como: (VS-536xV-537C)VS-536RC2-1-1-959 (VS-536), (VS-536xV-537C)VS-536RC2-1-1-960 (VS-536), (VS-536xV-537C)VS-536RC2-1-1-952 (VS-536-) y (VS-536xV-537C)VS-536RC2-1-1-953 (VS-536), similares a las líneas de referencia LT-155-289 y LT-157-291...
Palavras-chave: Zea mays L.; Selección per se; Cruzas; Aptitud combinatoria; Proteína; Selection per se; Cross; Combining ability; Protein; Maestría; Agroecosistemas Tropicales.
Ano: 2010
URL: http://hdl.handle.net/10521/207

ANÁLISIS FILOGENÉTICO Y VARIABILIDAD MOLECULAR DEL Potato virus X (PVX) EN CULTIVOS DE PAPA DE ANTIOQUIA
Provedor de dados: 37
Autores: GARCÍA RUÍZ,Daniela; GUTIÉRREZ SÁNCHEZ,Pablo; MARÍN MONTOYA,Mauricio.
En este estudio se determinaron las relaciones filogenéticas y los niveles de variación de aislamientos de PVX obtenidos en tejidos foliares de plantas de Solanum tuberosum subsp. andigena var. Diacol-Capiro y S. phureja var. Criolla Colombia en Antioquia, utilizando métodos de secuenciación de nueva generación (NGS) y de Sanger. Inicialmente, se detectó el PVX mediante DAS-ELISA (Agdia-PSA10000), confirmándose su presencia en ocho de las muestras por Inmunocaptura-RT-PCR en tiempo real (IC-RT-qPCR). Los resultados de las pruebas serológicas indicaron la infección de PVX en 14,7 % y 13,3 % de las muestras de Diacol-Capiro y Criolla Colombia, respectivamente. Su identidad fue confirmada por IC-RT-qPCR, con valores de ciclo umbral (Ct) de 15,04 a 27,59 y dos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DAS-ELISA; NGS; Potexvirus; RT-qPCR; Solanum spp; Variantes.
Ano: 2016
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000100011

Análisis Histopatológico del Cartílago Articular Expuesto a Metilprednisolona, Ropivacaína y Ácido Hialurónico en un Modelo Animal de Osteoartrosis
Provedor de dados: 77
Autores: Bustos Latabán,Ranmel; Marino Martínez,Iván Alberto; Romero Díaz,Víktor Javier; Mendoza Lemus,Oscar Fernando; Lara Arias,Jorge; De La Garza Castro,Santiago.
La osteoartrosis es un padecimiento del aparato locomotor con una prevalencia elevada y en crecimiento, paralela al envejecimiento de la población. La infiltración intraarticular de sustancias para aliviar la sintomatología de la osteoartrosis es una práctica común en el consultorio médico de los especialistas que atienden esta enfermedad. Aunque la sintomatología mejora con la infiltración de anestésicos locales, corticoesteroides y suplementos viscosantes, es aún incierto el efecto que estas sustancias tienen sobre la integridad del cartílago articular. Este estudio explora a nivel macroscópico e histológico el efecto de la infiltración de ropivacaína, metilprednisolona y ácido hialurónico sobre el cartílago articular en un modelo de osteoartrosis...
Tipo: Journal article
Palavras-chave: Infiltración intraarticular; Cartílago articular; Osteoartrosis.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000400013

Análisis Morfométrico de Hepatoesteatosis Microvesicular Alcohólica de Ratas
Provedor de dados: 77
Autores: Cornejo,R; Garrido,O; Sáez,L; Bustamante,C; Cartes,G.
Un total de 24 ratas hembras de 4 meses de vida con peso aproximado de 250 gramos fueron divididas en dos grupos de animales rotulados como A y B. El grupo A se mantuvo con pellet y agua ad libitum sirviendo como controles mientras que el grupo B conservaba el pellet y recibía una solución de alcohol 40% disuelto en agua lo cual derivó en una esteatosis alcohólica multivesicular. Ambos grupos se mantuvieron en estas condiciones por 60 días. Posteriormente las ratas fueron sacrificadas y se extrajeron muestras tanto de hígado normal-control como de hígado graso para enseguida ser procesadas para microscopía electrónica de transmisión. De hepatocitos normales y esteatósicos se obtuvieron microfotografías electrónicas de transmisión con aumentos finales de...
Tipo: Journal article
Palavras-chave: Esteatosis; Alcohol; Morfometría; Hepatocito.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200019

Análisis numérico del clima interior en un invernadero de tres naves con ventilación mecánica
Provedor de dados: 115
Autores: Flores-Velázquez,Jorge; Mejía-Saenz,Enrique; Montero-Camacho,Juan I.; Rojano,Abraham.
Uno de los principales problemas que enfrenta la agricultura en invernaderos, sobre todo en regiones de clima cálido, es moderar y controlar los problemas derivados del incremento de temperatura que ocurre en marcados periodos del año, ya que reducen la calidad y cantidad de la cosecha. Un método efectivo para el control del clima es la ventilación (natural o forzada) y aunque la ventilación forzada sea más predecible que la natural, su descripción es compleja y una simplificación obliga un mayor conocimiento del proceso. El objetivo de este trabajo fue validar y aplicar un modelo numérico basado en la dinámica de fluidos computacional (CFD) para el análisis climático de un invernadero cenital de tres naves sin cultivo y con ventilación forzada....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Efecto eólico; Enfriamiento; Gas trazador; Gradiente térmico.
Ano: 2011
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952011000500002

Análisis sociodemográfico del comportamiento de las mujeres en Haití, respecto al uso de métodos anticonceptivos y las necesidades no satisfechas de anticoncepción
Provedor de dados: 122
Autores: Lachaud Toussaint, James.
En las últimas dos décadas, muchas son las instituciones, internacionales y nacionales, que trabajan en Haití en la planificación familiar, ofreciendo a la población haitiana, y específicamente las mujeres en edad de reproducción, diferentes servicios de salud reproductiva y servicios anticonceptivos. Sin embargo, el nivel de prevalencia de uso de método anticonceptivo sigue aún muy bajo y el nivel de necesidades no satisfechas de anticoncepción lo más alto de la región. Es así que se hace un análisis-empírico que permita entender el comportamiento reproductivo de las mujeres respecto a los servicios anticonceptivos en Haití en términos de NNSA, a partir de los factores determinantes, e integrando el efecto de selección vía en el no uso general.
Tipo: Tesis
Palavras-chave: SALUD REPRODUCTIVA; MÉTODOS ANTICONCEPTIVOS; ANTICONCEPCIÓN; HAITÍ; REPRODUCTIVE HEALTH; BIRTH CONTROL; CONTRACEPTION; MAESTRÍA EN POBLACIÓN Y DESARROLLO.
Ano: 2010
URL: http://hdl.handle.net/10469/2841

Análisis técnico-financiero de los sistemas de producción de jitomate (Lycopersicon esculentum Mill) en el Valle del Mezquital, Hidalgo.
Provedor de dados: 32
Autores: Cervantes Angeles, Alicia.
Se caracterizaron los sistemas de producción  de jitomate en el Valle del Mezquital, Hidalgo; identificando a cuatro siendo: a) cielo abierto, y en invernadero con tres variantes b) producido en suelo (camas), c) en tezontle (bolsa) y d)  mezcla de sustratos (tezontle-composta en bolsa), este último sistema se propuso y desarrolló experimentalmente en esta investigación. Para el análisis de cada método de producción se utilizó el muestreo no probabilístico “bola de nieve” (Cornelius, 1981) para identificar a los productores a quienes se les aplicaron entrevistas. El cuestionario incluyó una sección de características productivas, tecnológicas, de comercialización y económicas. Se encontró que los cuatro sistemas presentaron notables diferencias  en todos...
Palavras-chave: Sistema de producción; Rentabilidad; Jitomate; Production of systems; Profitability; Tomato; Economía; Maestría.
Ano: 2011
URL: http://hdl.handle.net/10521/504

Análisis técnico-financiero de los sistemas de producción de jitomate (Lycopersicon esculentum Mill) en el Valle del Mezquital, Hidalgo.
Provedor de dados: 32
Autores: Cervantes Angeles, Alicia.
Se caracterizaron los sistemas de producción  de jitomate en el Valle del Mezquital, Hidalgo; identificando a cuatro siendo: a) cielo abierto, y en invernadero con tres variantes b) producido en suelo (camas), c) en tezontle (bolsa) y d)  mezcla de sustratos (tezontle-composta en bolsa), este último sistema se propuso y desarrolló experimentalmente en esta investigación. Para el análisis de cada método de producción se utilizó el muestreo no probabilístico “bola de nieve” (Cornelius, 1981) para identificar a los productores a quienes se les aplicaron entrevistas. El cuestionario incluyó una sección de características productivas, tecnológicas, de comercialización y económicas. Se encontró que los cuatro sistemas presentaron notables diferencias  en todos...
Palavras-chave: Sistema de producción; Rentabilidad; Jitomate; Production of systems; Profitability; Tomato; Economía; Maestría.
Ano: 2011
URL: http://hdl.handle.net/10521/504

Análisis temporal y control químico de antracnosis (Colletotrichum gloeosporioides Penz.) y cenicilla (Oidium mangiferae Berthet) en mango (Mangifera indica) cv. Haden en el trópico seco de Guerrero, México.
Provedor de dados: 32
Autores: Pérez Rodríguez, Amado.
Se estudió el desarrollo temporal de epidemias de antracnosis y cenicilla en el huerto experimental de mango Zozontla1 en Arcelia (trópico seco), Guerrero, México; sujetos a un programa de fungicidas que consideró distintos ingredientes activos, así como su combinación y secuencias de aplicación durante el ciclo 2010-11. Los estados fenológicos más susceptibles fueron floración plena (30%), amarre de frutos (3-5 mm Ø) (35%) y frutos de 8-15 mm Ø (35%). El control se obtuvo al iniciar con ingrediente sistémico, pero su efectividad dependió de la combinación y secuencias de aspersión.El control de antracnosis en floración se obtuvo en los tratamientos T1 (azoxistrobin, oxicoluro de cobre + azufre, myclobutanil y oxicoluro de cobre + azufre)  y T3...
Palavras-chave: Manejo; Fungicida; Epidemiología; Secuencia de aplicación; Fitopatología; Maestría.
Ano: 2012
URL: http://hdl.handle.net/10521/776

Análisis temporal y control químico de antracnosis (Colletotrichum gloeosporioides Penz.) y cenicilla (Oidium mangiferae Berthet) en mango (Mangifera indica) cv. Haden en el trópico seco de Guerrero, México.
Provedor de dados: 32
Autores: Pérez Rodríguez, Amado.
Se estudió el desarrollo temporal de epidemias de antracnosis y cenicilla en el huerto experimental de mango Zozontla1 en Arcelia (trópico seco), Guerrero, México; sujetos a un programa de fungicidas que consideró distintos ingredientes activos, así como su combinación y secuencias de aplicación durante el ciclo 2010-11. Los estados fenológicos más susceptibles fueron floración plena (30%), amarre de frutos (3-5 mm Ø) (35%) y frutos de 8-15 mm Ø (35%). El control se obtuvo al iniciar con ingrediente sistémico, pero su efectividad dependió de la combinación y secuencias de aspersión.El control de antracnosis en floración se obtuvo en los tratamientos T1 (azoxistrobin, oxicoluro de cobre + azufre, myclobutanil y oxicoluro de cobre + azufre)  y T3...
Palavras-chave: Manejo; Fungicida; Epidemiología; Secuencia de aplicación; Fitopatología; Maestría.
Ano: 2012
URL: http://hdl.handle.net/10521/776

Analyse der Kontroll- und Sanktionshäufigkeiten großer Öko-Kontrollstellen in Deutschland
Provedor de dados: 21
Autores: Zorn, Alexander; Lippert, Christian; Dabbert, Stephan.
Die Vermarktung von ökologischen Lebensmitteln in Deutschland ist an die Einhaltung der entsprechenden europäischen Rahmenvorschrift geknüpft. Bis Ende 2008 war dies die Verordnung (EWG) Nr. 2092/91, deren Einhaltung durch die Öko-Lebensmittelwirtschaft in Deutschland von privaten Kontrollstellen überprüft wurde. Die privaten Kontrollstellen melden im Rahmen der gesetzlich vorgeschriebenen Überwachung Daten zu Kontroll- und Sanktionshäufigkeiten der Unternehmen an die Behörden der Länder (Überwachung auf Bundeslandebene) und an die Bundesanstalt für Landwirtschaft und Ernährung (BLE). Die BLE ist für den Transfer der Daten an die Europäische Kommission (Überwachung auf EU-Ebene) verantwortlich.  Dieser Beitrag analysiert die an die Europäische Kommission...
Tipo: Book chapter
Palavras-chave: Values; Standards and certification Consumer issues.
Ano: 2010
URL: http://orgprints.org/19558/1/Schriften_der_GEWISOLA_Bd_45_2010.pdf

Analyse der Schwachstellen in der Kontrolle nach EU-Verordnung 2092/91 und Erarbeitung von Vorschlägen zur Weiterentwicklung der Zertifizierungs- und Kontrollsysteme im Bereich des Ökologischen Landbaus
Provedor de dados: 21
Im Rahmen des Vorhabens wurde eine systematische Schwachstellenanalyse für das Kontrollsystem und –verfahren nach der „Verordnung (EWG) Nr. 2092/91 über den Ökologischen Landbau und die entsprechende Kennzeichnung landwirtschaftlicher Erzeugnisse und Lebensmittel“ (EG-Öko-VO) durchgeführt. Ausgehend von dieser Analyse wurden Vorschläge für ein proaktives Risikomanagement abgeleitet. Hierbei wurden die in den Gründen der EG-Öko-VO verankerten Zielsetzungen des Verbraucherschutzes, des lauteren Wettbewerbs, der Markttransparenz und der Förderung des Ökologischen Landbaus zu Grunde gelegt.  Die rechtlichen Regelungen der EG-Öko-VO bauen auf die allgemein geltenden Vorschriften des Lebens- und Futtermittelrechtes auf. Die besondere Qualität von Produkten des...
Tipo: Project description
Palavras-chave: Regulation Values; Standards and certification.
Ano: 2023

Analyse der Schwachstellen in der Kontrolle nach EU-Verordnung 2092/91 und Erarbeitung von Vorschlägen zur Weiterentwicklung der Zertifizierungs- und Kontrollsysteme im Bereich des Ökologischen Landbaus
Provedor de dados: 21
Autores: Gesellschaft für Ressourcenschutz, mbH.
Im Rahmen des Vorhabens wurde eine systematische Schwachstellenanalyse für das Kontrollsystem und –verfahren nach der „Verordnung (EWG) Nr. 2092/91 über den Ökologischen Landbau und die entsprechende Kennzeichnung landwirtschaftlicher Erzeugnisse und Lebensmittel“ (EG-Öko-VO) durchgeführt. Ausgehend von dieser Analyse wurden Vorschläge für ein proaktives Risikomanagement abgeleitet. Hierbei wurden die in den Gründen der EG-Öko-VO verankerten Zielsetzungen des Verbraucherschutzes, des lauteren Wettbewerbs, der Markttransparenz und der Förderung des Ökologischen Landbaus zu Grunde gelegt.     Die rechtlichen Regelungen der EG-Öko-VO bauen auf die allgemein geltenden Vorschriften des Lebens- und Futtermittelrechtes auf. Die besondere Qualität von Produkten...
Tipo: Report
Palavras-chave: Regulation Values; Standards and certification.
Ano: 2003
URL: http://orgprints.org/2495/1/2495%2D02OE215%2Dble%2Dgfrs%2D2003%2Dschwachst%2Dkontr%2Dschlussber.pdf

Analyse des déterminants environnementaux de la variabilité du recrutement - approche macroécologique appliquée aux populations exploitées du Nord-Est Atlantique
Provedor de dados: 5
Autores: Brunel, Thomas.
Recruitment - the number of young fishes that integrate each year the exploitable stock¿ has a central importance for stock dynamics. The high temporal variability in recruitment is a result of the environmental influence on survival during early life stages. Understanding the determinism of the influence of environment on recruitment remains one of the most important question in fisheries ecology. The present work aimed at answering some general questions about the influence of environment on fish recruitment using a macroecological approach. The study focused on the exploited fish populations of the Northeastern Atlantic. The first chapter of the thesis makes a review of the different methods used to estimate recruitment, compares recruitment estimates...
Tipo: Text
Palavras-chave: Time series; Recruitment variability; Regime shift; Recruitment synchrony; North East Atlantic; NAO; Long term trends; Environmental influence; Effect of temperature; Effect of fishing; Climate change; Biogeography; Variabilité du recrutement; Synchronisme; Séries chronologiques; Tendances à long terme; NAO; Influence de l'environnement; Effet de la température; Effet de la pêche; Changement de régime; Changement climatique; Biogéographie; Atlantique Nord Est.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/these-1113.pdf

Analyse des processus sedimentaires recents dans l'eventail profond du Danube (mer Noire)
Provedor de dados: 5
Autores: Popescu, Irina.
This study is focusing on the architecture and recent sedimentary evolution of the Danube channel, the youngest channel-levee system in the Danube deep-sea fan. The study was conducted as part of the BlaSON French-Romanian Project, and combined high-resolution seismic-reflection profiles and chirp profiles with multibeam bathymetry and piston cores. This data set was acquired in 1998 during a joint survey IFREMER-GeoEcoMar of the north-western Black Sea. Previous seismic and acoustic data were also used. The Danube deep-sea fan is a large passive-margin mud-rich fan. Like the other systems of this type (Amazon fan, Mississippi fan or Indus fan) the Danube fan consists of stacked channel-levee systems intercalated with mass-transport deposits. Seismic and...
Tipo: Text
Palavras-chave: High resolution seismic; Lowstand palaeogeography; Submarine canyons; Deep sea fans; Black Sea; Sismique haute résolution; Paléogéographie; Canyon sous marin; Eventail profond; Mer Noire.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/these-1206.pdf

Analyse des stratégies de contrôle dans une pêcherie gérée par l’effort de pêche : le cas de la pêcherie de coquilles Saint-Jacques de la baie de Saint-Brieuc
Provedor de dados: 5
Autores: Le Gallic, Bertrand; Fifas, Spyros; Lesueur, Marie; Roncin, Nicolas; Ropars-collet, Carole.
Since a report by the European Court of Auditor in December 2007, EU officials have been suggesting that the failure of the Common Fisheries Policy (CFP) results from too much non compliance and a weak and inefficient enforcement system. As a result, a stakeholder consultation was organised EU-wide, and a new control regulation has been presented by the European Commission in autumn 2008. The objective of the paper is to discuss the reality and the scope of this assertion in the situation of a French coastal fishery managed through effort control (the Saint-Brieuc scallop fishery). Key outlines of the French control strategy are presented for the first time, based on an extensive work with the key stakeholders (national and regional administrations and...
Tipo: Text
Palavras-chave: Contrôle; Fraude; Pêcheries; Économie; Aménagement; Control policy; Fraud behavior; Economics; Fisheries management.
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00480/59148/61776.pdf

Analyse du compartiment mésozooplanctonique et écologie alimentaire printanière de la sardine, Sardina pilchardus (Walbaum, 1782), et de l’anchois, Engraulis encrasicolus (Linné, 1758) adultes dans le Golfe de Gascogne
Provedor de dados: 5
Autores: Dessier, Aurélie.
Dietary studies of marine species constitute an important key to improve the understanding of its biology and of its role in the ecosystem. Thus, prey-predator relationships structure and determine population dynamics and the trophic network at the ecosystem scale. Among the major study sites, the marine ecosystem is submitted to natural and anthropogenic constraints. In the North-Eastern part of the Atlantic Ocean, the Bay of Biscay is a large open area surrounded South by Spain and East by France. This bay is an historic place of intense fishery activities for which the main small pelagic species targeted are the pilchard, Sardina pilchardus and the anchovy, Engraulis encrasicolus. The aim of this work is to analyze the trophic ecology of these two small...
Tipo: Text
Palavras-chave: Petits poissons pélagiques; Traceurs écologiques; Isotopes stables; Parasites; Mercure; Communauté mésozooplanctonique; Qualité du régime alimentaire; Golfe de Chaînes; Zooplancton marin; Isotopes stables; Expérience d’alimentation; Poissons pélagiques -- Gascogne; Small pelagic fish; Ecological tracers; Stable isotopes; Parasites; Mercury; Mesozooplanktonic community; Diet quality; Feeding experiment.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00353/46447/46197.pdf

Analyse et modelisation des parametres d'exploitation du stock de coquilles saint-jacques (pecten maximus, l.) en baie de saint-brieuc (manche ouest, france).
Provedor de dados: 5
Autores: Fifas, Spyros.
The population dynamics is developed upon data on the age-composition of catches collected since 1974 by a sampling technic at two levels (fishing day, vessel). A temporally stratified sampling is carried out. A cohort analysis is realized through these data ; assumptions for the coefficients of natural and indirect fishing mortality are set up. Catchability models for all age groups are fitted. Catchability of the most abundant age groups (2 and 3) is an increasing function of their abundance and of the fishing fleet mean horse power. These functions present a maximum asymptotical value. Their adequation is explained by the adaptations of dredges and by the population sedentary life allowing the concentration of fishing fleet on the most abundant areas. A...
Tipo: Text
Palavras-chave: Stratified sampling Temperature Spawning biomass Gowth Fecundity per recruit Yield per recruit Horse power Catchabiltry Cohort analysis Mortality Age composition of catches; Dredge Directed stock assessment Bay of Saint Brieuc Pecten maximus Scallop Biomasse féconde Croissance Evaluation directe Echantillonnage stratifié Température. Fécondité par recrue Rendement par recrue Puissance motrice Capturabilité Analyse des cohortes Mortalité Structure démographique des Drague Baie de Saint Brieuc Pccten maximus Coquille Saint Jacques.
Ano: 1993
URL: https://archimer.ifremer.fr/doc/1993/rapport-1518.pdf

Analyse und Bewertung der Energie-, Eiweiß- und Mineralstoffversorgung von Milchkühen im ökologischen Landbau am Beispiel des Lehr- und Versuchsbetriebes Gladbacherhof
Provedor de dados: 21
Autores: Sommer, Dipl.-Ing. agr. Hendrik; Leithold, Prof.Dr. Günter; Schmid-Eisert, Dipl.-Ing.agr. Andreas.
An optimal supply of dairy cows with energy and nutritive substances is just as important for the organic as it is for the conventional milk production. The current project examined if in organic rural economy the feeding meets the required demand. In the trial period from 10 Nov. 2001 till 17 Oct.2003 data of the milk performance test were gathered for 11 capacity control days. The energy and nutritive substance made a silage food capacity of 17 -24 kg milk per cow and day possible, so a milk capacity of 8157 kg milk per cow and year could be realized. A suspected shortage of nitrogen based on the low milk urea concentration caused by the normal milk protein concentration could not be confirmed. The result of the capacity control showed that only     76 %...
Tipo: Conference paper, poster, etc.
Palavras-chave: "Organics" in general; Dairy cattle.
Ano: 2005
URL: http://orgprints.org/3648/1/3648.pdf

Analyses microbiologiques et chimiques des produits de la pêche et de l'eau
Provedor de dados: 20
Autores: Diouf, Sidiya.
Ce rapport porte principalement sur la microbiologie, la chaîne biochimie des aliments et des eaux au terme d'un stage d'un mois effectué au Laboratoire de Sécurité Alimentaire et d'Hygiène de l'Environnement (LSAHE) de l'Institut Pasteur de Dakar. Nous avons donné quelques notions générales sur: (1) les différents germes recherchés dans: - le poisson (frais ou transformé); germes capables d'altérer la qualité marchande du poisson (la flore totale à 30 ° C); - germes potentiellement pathogènes (ASR, Salmonellea, Staphylococcus); - germes témoins de contamination fécale (coliformes fécaux);  - germes indicateurs technologiques (coliformes totaux entérobactéries). (2) l'eau et la glcae: - germes capables d'altérer la qualité marchande de l'eau (la flore...
Tipo: Report
Palavras-chave: Microbiological analysis; Fish; Water analysis; Ice; Hygiene; Quality control; Fish; Ice; Microbiological analysis; Water analysis; Hygiene; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_3782; Http://aims.fao.org/aos/agrovoc/c_25302; Http://aims.fao.org/aos/agrovoc/c_16064; Http://aims.fao.org/aos/agrovoc/c_3739.
Ano: 2001
URL: http://hdl.handle.net/1834/4074

Analysing Agricultural Land Markets as Organisations: An Empirical Study in Poland
Provedor de dados: 31
Autores: Hurrelmann,   Annette.
In this paper agricultural land markets are regarded as organisations, which allows to take the effect of the social embeddedness of exchange into account. The markets-as organizations approach suggests that markets are governed by an internal "constitution" containing rules on dissemination of information, control procedures and sanctioning mechanisms that provide advantages to members. The design of the market constitution is believed to be strongly influenced by the constellation of actors and their characteristics. In order to investigate the validity of this assumption the study chooses a comparative approach that analyses the content of land market rules in settings with different actor constellations and tries to find out why they have been...
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 2004
URL: http://purl.umn.edu/18840

Analysis and Definition of the close-to-crop Area in Relation to Robotic Weeding
Provedor de dados: 21
Autores: Nørremark, Michael; Griepentrog, Hans W.
The objective of this paper is to analyse and define the field conditions close to the crop plants of sugar beet (Beta vulgaris L.). The aim is to use this study for the choice and development of new physical weeding methods to target weeds at individual plant scale level. It was found that the close to crop area is like a ring structure, comprising an area between an inner- and outer-circle around the sugar beet seedling. Physical weeding should not be applied to the area within the inner circle.  The radius of the inner circle increases with the appearance of young beet leaves during the growth season. It was also found, that no weeds were germinating within 1 cm around individual sugar beet seedlings. Therefore this distance should be added to the...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2004
URL: http://orgprints.org/4834/1/4834.pdf

Analysis of a suppressive subtractive hybridization library of Alternaria alternata resistant to 2-propenyl isothiocyanate
Provedor de dados: 69
Autores: García-Coronado,Heriberto; Troncoso-Rojas,Rosalba; Tiznado-Hernández,Martín Ernesto; de la Cruz Otero,María del Carmen; Díaz-Camacho,Sylvia Páz; Báez-Flores,María Elena.
Background Isothiocyanates (ITCs) are natural products obtained from plants of the Brassicas family. They represent an environmentally friendly alternative for the control of phytopathogenic fungi. However, as it has been observed with synthetic fungicides, the possibility of inducing ITC-resistant strains is a major concern. It is, therefore, essential to understanding the molecular mechanisms of fungal resistance to ITCs. We analyzed a subtractive library containing 180 clones of an Alternaria alternata strain resistant to 2-propenyl ITC (2-pITC). After their sequencing, 141 expressed sequence tags (ESTs) were identified using the BlastX algorithm. The sequence assembly was carried out using CAP3 software; the functional annotation and metabolic pathways...
Tipo: Journal article
Palavras-chave: Blast2GO analysis; Fungal drug tolerance; Isothiocyanates; Natural fungicides.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000400011

Analysis of adaptability and stability in soybean elite lines - DOI: 10.4025/actasciagron.v26i3.1838
Provedor de dados: 1
Autores: Vicente, Dorival; Pinto, Ronald José Barth; Scapim, Carlos Alberto.
The effects of genotype x environment interaction (GxE) on the stability and adaptability of 9 soybean (Glycine max (L.) Merrill) elite lines and one control (IAS 5) were studied in 11 locations in the States of Paraná, Rio Grande do Sul, São Paulo and Mato Grosso do Sul, during the 2000/01 and 2001/02 crop seasons. A complete randomized block design, with three replications, was used in all environments. Significant differences for the effect of genotypes, environments and interaction GxE were observed for grain yield. Statistical models followed the standard method, ecovalence, Eberhart and Russel, Cruz, Torres and Vencovsky and AMMI methodologies. Genotypes CD 97-922 and CD 98-3118 were responsive under unfavorable environments. Lines CD 97-1243, OC...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.00.00.00-4    Ciências Agrárias Glycine Max; Rendimento 5.00.00.00-4    Ciências Agrárias.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1838

Analysis of Behavioural Profile of Hens with the Use of Computer Software
Provedor de dados: 89
Autores: Rozempolska-Rucinska,I; Bownik,A; Prochniak,T; Zieba,G; Slaska,B; Kasperek,K; Kozak,A.
ABSTRACT The aim of the study was to evaluate the emotional reactivity of hens with the use of physical parameters such as movement velocity and position of the selected parts of the body analysed by computer software - Tracker®. 200 Rhode Island White hens kept individually in a laying hen breeding farm were used in the study. The analysis of hens behaviour was performed with the use of Novel Object Test. Afterwards the video clips were analysed to determine behavioural reactivity with the use of Tracker® software by analysis of two control points: the upper part of the head and the peak of the tail. The results suggest that it is possible to use Tracker® software for evaluation of hens behavioural profile and this sort of analysis enables to classify...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emotional reactivity; Laying hens; Novel Object Test; Tracker® software.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000300413

Analysis of biological parameters of Boophilus microplus Canestrini, 1887 exposed to entomopathogenic nematodes Steinernema carpocapsae Santa Rosa and All strains (Steinernema: Rhabditida)
Provedor de dados: 52
Autores: Freitas-Ribeiro,Gláucia Marques; Furlong,John; Vasconcelos,Viviane Oliveira; Dolinski,Cláudia; Loures-Ribeiro,Alan.
Engorged and partially engorged females of Boophilus microplus were exposed to 600; 3,000; 6,000 and 30,000 infective juveniles of Steinernema carpocapsae Weiser, 1955 Santa Rosa and All strains per dish, under lab conditions. Eggs weight, pre-laying period, laying period, survival period, reproductive efficiency rate, percentage of larval eclosion and lethal concentrations of 50% and 90% (CL50 and CL90) were calculated for engorged females. In the case of partially engorged females, only egg weight, survival period and CL50 and CL90 were calculated. All biological parameters of engorged or partially engorged females were altered by exposition of S. carpocapsae infective juveniles (IJs), Santa Rosa and All strains (p&lt;0.05). The increase in the response...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boophilus microplus; Steinernema carpocapsae; Entomopathogenic nematodes; Cattle tick; Reproduction.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800007

Analysis of black holes in our knowledge concerning animal health in the organic food production chain
Provedor de dados: 21
Autores: Kijlstra, Aize; Groot, Maria; Roest, van der, Joop; Kasteel, Daniella; Eijck, Ineke.
Although a large body of research on health aspects can be found via the web or in conference proceedings, only few papers reach the peer reviewed literature. This aspect makes it difficult to judge the quality of available data that relate to health aspects associated with organic livestock production.     Many data deal with "on farm case type studies" which often do not lead to a direct relation between certain management procedures and incidence of certain health aspects.    The principle that organic held animals are in better condition concerning their health as compared to conventionally held animals has not yet been proven. Well-controlled studies are needed to show the effects of organically held animals on innate and adaptive immune responses and...
Tipo: Report
Palavras-chave: Health and welfare.
Ano: 2003
URL: http://orgprints.org/1034/1/IDhiaten.pdf

Analysis of Consumer Food-Handling Practices from Grocer to Home Including Transport and Storage of Selected Foods
Provedor de dados: 31
Autores: Godwin,   Sandria L.; Coppings,   R.J.
Consumers were interviewed about how they purchase, transport, store, and otherwise handle food. Emphasis was placed on handling of cold foods and home refrigeration. More than 70% of consumers took steps to protect cold foods during purchase and transport and more than 90% claimed to put away cold foods first. Only 7% of consumers used coolers to protect cold foods during transport. How consumers stored a variety of foods was determined and evaluated. Few consumers knew their own or correct refrigerator temperature and few had refrigerator thermometers. A second interview and refrigerator checklist were completed in 200 of the consumers'’ homes at least a year later. Researchers judged that circumstances that might allow for cross-contamination existed in...
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 2005
URL: http://purl.umn.edu/26725

Analysis of differences between EU regulation 2092/91 related to other stan-dards – Potentials for harmonisation, simplification and regionalisation
Provedor de dados: 21
Autores: Schmid, O.; Huber, B.; Ziegler, K.; Hansen Jens, G.; Plakolm, G.
An analysis is made of the differences between the EU regulation 2092/91 and se-lected organic standards as well as national governmental rules as part of an EU-funded research project on the revision of this regulation. The results show that many differences have specific justifications, influenced by specific national or regional circumstances or policies. The possible impacts/conflicts of the differences on con-sumer/public perception, trade and on the organic farming principles are explored. Main potentials for harmonisation, simplification and regionalisation of the EU regula-tion for organic food and farming are identified in the following areas: labelling, seeds, fertilising, pest and disease control, wild plants, animal feed, processing,...
Tipo: Conference paper, poster, etc.
Palavras-chave: Regulation Values; Standards and certification.
Ano: 2007
URL: http://orgprints.org/10023/1/10023_Schmid_Vortrag.pdf

Analysis of digestive tract content of the larvae of Polybia scutellaris (White) (Hymenoptera, Vespidae)
Provedor de dados: 92
Autores: Corujo,Victoria Lilian Fernández; Basilio,Mabel Alicia; Galati,Beatriz Gloria.
Polybia scutellaris (White, 1841) is a social wasp of biological interest for its role as pollinator and maybe as biological control agent of sanitary and agricultural pests. This study examines the digestive tract contents of the larvae of P. scutellaris from four nests in Magdalena (Buenos Aires province, Argentina). Contents included both animal (arthropod parts) and plant (pollen, leaf and fruit epidermis) parts. The pollen content analysis showed that the wasps visited 19 different taxa of plants during the last active period of the colony before the nests had been collected. The range of sources used by P. scutellaris allows us characterizing the species as a generalist flower visitor. Wasps visited both native and exotic plants located nearby the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epidermal tissues; Generalist visitor; Pollen; Social wasp.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000200015

Analysis of dog and cat population submitted to vaccination campaigns against rabies in a small city from Brazil
Provedor de dados: 195
Autores: Babboni, S. D.; Fornazari, F.; Gonzalez, G. K.; Victoria, C.; Modolo, J. R.
In many developing countries domestic dogs and cats are the most important transmitters of rabies to men. The annual vaccination constitutes an important preventive activity, and the knowledge of animal population profile can assist future prophylatic programs, not just for rabies but also for other infectious diseases and social problems involving dogs and cats. In most Brazilian cities there is no census that can provide these data. One alternative, although limited, is to collect information from the vaccination campaign itself, realized by the public service. The present study aimed to analyze: the number of vaccinated dogs and cats in a small Brazilian city; their sex and reproductive status; and evaluate if there was a decrease in vaccinated animals...
Tipo: Info:eu-repo/semantics/article
Ano: 2013
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/2564

Analysis of drug resistance mutations in pulmonary Mycobacterium tuberculosis isolates in the Southern coastal region of Andhra Pradesh, India
Provedor de dados: 55
Autores: Prasad,Polu Giri; Jasmine,Mohammad Shaik; kanta,Kota Neela Mani; Deepthi,Karumanchi; Allam,Uday Sankar.
ABSTRACT  Purpose and objectives Detection of drug resistance plays a crucial role in tuberculosis (TB) treatment and prevention of Mycobacterium tuberculosis (MTB) transmission. The aim of this study was to determine the levels and patterns of resistance of MTB isolates to two key anti-TB drugs (rifampicin, RIF and isoniazid, INH) and the type of mutations in drug resistance genes (rpoB, katG and inhA) of the isolates at the southern coastal region of Andhra Pradesh, India, using commercially available GenoType MTBDRplus assay under the Revised National TB Control Program.  Methods GenoType MTBDRplus assay was performed on 2859 sputum smear-positive samples and the mutations in the genes responsible for resistance (rpoB, katG and inhA) were analyzed....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Multidrug resistance; Mycobacterium tuberculosis; MTBDRplus assay; Mutations; Molecular detection.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000500281

Analysis of Environmental and Economic Efficiency: Application of the Overseer model and simulated data
Provedor de dados: 31
Autores: Ramilan,   Thiagarajah; Scrimgeour,   Frank G.; Marsh,   Dan.
New Zealand’s success in raising agricultural productivity has been accompanied by higher input use, leading to adverse effects on the environment. Until recently, analysis of farm performance has tended to ignore such negative externalities. The current emphasis on environmental issues has led dairy farmers to target improvements in both environmental performance and productivity. Therefore measuring the environmental performance of farms and integrating this information into farm productivity calculations should assist informed policy decisions which promote sustainable development. However this is a challenging process since conventional environmental efficiency measures are usually based on simple input and output flows but nitrogen discharge is a...
Tipo: Conference Paper or Presentation
Palavras-chave: Data Envelopment Analysis; Economic; Efficiency; Environment; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Livestock Production/Industries; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/97161

Analysis of Farm Household Preferences in the Management of Invasive Species: The Case of Miconia in Hawaii
Provedor de dados: 31
Autores: Chan-Halbrendt,   Catherine; Yang,   Fang; Thomas,   Lynna; Pant,   Archana.
A major threat to Hawaii's ecosystem is the spread of invasive plant species. One such species is Miconia calvescens. Given that this plant was originally introduced to Hawaii by the horticulture industry and has negative effects on agricultural productivity, it is logical to find the farm households' preference for the control of Miconia. Using Conjoint Choice Experiment methodology, this study designed a survey to measure farm households' preferences for Miconia calvescens control program attributes. Results of the surveys indicate that the farm households are willing to support Miconia control programs if they prevent severe soil erosion and loss of biodiversity.
Tipo: Journal Article
Palavras-chave: Miconia; Invasive species; Hawaii; Farmers; Conjoint Choice Experiment; Valuation; Crop Production/Industries.
Ano: 2007
URL: http://purl.umn.edu/8189

Analysis of feral pig (Sus scrofa) movement in a Hawaiian forest ecosystem using GPS satellite collars
Provedor de dados: 17
Autores: Lasha-Lynn  H. Salbosa; Dr. Christopher A. Lepczyk.
The ecosystem altering impacts of feral pigs have been widely documented around the world.  However, a general framework for their control and management has been lacking, especially in island ecosystems.  One reason for this lack of management is that we have little knowledge of how pigs move through different island ecosystems, especially ones that are topographically challenging such as Hawai&amp;#x201b;i.  With recent advances in telemetry and movement modeling, it is now becoming practical to understand where these large introduced animals are moving and how they are using habitat.  Hence, the primary goal of this study is to understand feral pig movement in terms of terrain, slope restrictions, and distance traveled beyond a natal site, within an...
Tipo: Presentation
Palavras-chave: Ecology.
Ano: 2009
URL: http://precedings.nature.com/documents/3903/version/1

Analysis of Genetic Diversity Using Simple Sequence Repeat (SSR) Markers and Growth Regulator Response in Biofield Treated Cotton (Gossypium hirsutum L.)
Provedor de dados: 21
Autores: Trivedi, Mahendra Kumar; Trivedi, Dahryn; Branton, Alice; Nayak, Gopal.
Cotton is the most important crop for the production of fiber that plays a key role in economic and social affairs. The aim of the study was to evaluate the impact of biofield energy treatment on cotton seeds regarding its growth, germination of seedling, glutathione (GSH) concentration, indole acetic acid (IAA) content and DNA fingerprinting using simple sequence repeat (SSR) markers for polymorphism analysis. The seeds of cotton cv. Stoneville-2 (Gossypium hirsutum L.) was obtained from DNA Land Marks Inc., Canada and divided into two groups. One group was remained as untreated, while the other was subjected to Mr. Trivedi biofield energy and referred as treated sample. The growth-germination of cotton seedling data showed higher germination (82%) in...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection.
Ano: 2015
URL: http://orgprints.org/30772/1/10.11648.j.ajaf.20150305.17.pdf

Analysis of heart rate control to assess thermal sensitivity responses in Brazilian toads
Provedor de dados: 56
Autores: Natali,J.E.S.; Santos,B.T.; Rodrigues,V.H.; Chauí-Berlinck,J.G.
In anurans, changes in ambient temperature influence body temperature and, therefore, energy consumption. These changes ultimately affect energy supply and, consequently, heart rate (HR). Typically, anurans living in different thermal environments have different thermal sensitivities, and these cannot be distinguished by changes in HR. We hypothesized that Rhinella jimi (a toad from a xeric environment that lives in a wide range of temperatures) would have a lower thermal sensitivity regarding cardiac control than R. icterica (originally from a tropical forest environment with a more restricted range of ambient temperatures). Thermal sensitivity was assessed by comparing animals housed at 15° and 25°C. Cardiac control was estimated by heart rate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anuran; Cardiac control; Heart rate complexity; Heart rate variability; Thermal physiology.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000100046

Analysis of Influencing Factors and Decision Criteria on Infield-Logistics of different Farm Types in Germany
Provedor de dados: 111
Autores: Mederle, Michael; Bernhardt, Heinz.
In future increasing production efficiency in agriculture will not only be achieved by rising machinery working widths but more and more by optimization of entire production process chains. The more machines are interacting the higher will be the specific optimization potential.Navigation not only to the fields but also within the fields will certainly contribute to make use of these efficiency reserves. Necessary therefore is the knowledge of potential influences on infield-logistics to be able to navigate agricultural machinery in the fields effectively and process optimized.Preliminary studies based on GPS-lane analysis in different German agricultural regions and in Central Canada show that decisions on specific infield patterns to a certain degree...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural logistics; Process optimization; Infield navigation; Vehicle guidance; Decision criteria.
Ano: 2017
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4058

Analysis of isotype-specific antibody responses to bovine herpesviruses 1.1 and 1.2a allows to estimate the stage of infection
Provedor de dados: 58
Autores: Spilki,Fernando Rosado; Franco,Ana Cláudia; Roehe,Paulo Michel.
Specific IgM, IgA, IgG1, IgG2, as well as neutralizing antibody responses were evaluated in sera of calves experimentally infected with two isolates of bovine herpesvirus type 1 (BoHV1) of distinct subtypes (subtype 1, BoHV1.1; subtype 2a, BoHV-1.2a). No significant differences were observed in the antibody responses induced by each BoHV-1 subtype. The antibody responses following primary acute infection were characterized by an increase in specific IgM and IgA levels between days 2 and 14 post inoculation (pi). IgG1 was detected from days 11 to 30 pi. IgG2 was detected on the sample taken on day 30 pi. Reactivation of infection following dexamethasone administration induced a significant rise in IgA levels, whereas IgG1 and IgG2 levels, which were at high...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine herpesvirus type 1; Infectious bovine rhinotracheitis; Immunoglobulin subclasses; ELISA.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200021

Analysis of masseter muscle tension through electromyography among residents of the city of Buenos Aires - Argentina
Provedor de dados: 52
Autores: Pinto,Marcus Vinícius de Mello; Pereira Jr,Francisco José; Scaglione,Guilhermo Mario; Santos-Filho,Sebastião David; Silva,Cristiane Martins da; Silva,Marco Antônio Guimarães da; Rocha,Lamara Laguardia Valente; Gonçalves,Reggiani Vilela.
This study aimed at collecting data of masseter myofascial tension, related to the joint hyperactivity by electromyography activity of masseter muscle at rest, isotonic and isometric chewing. 08 patients living in the city of Buenos Aires, Argentina, volunteers, aged between 22 and 62 years, both sexes were evaluated. The electromyography data collection at rest had reported that 50% showed differences in masseter muscle tension increased in the left for the right masseter; in isometric contraction, 50% had a difference in masseter tension right; in isotonic contraction 62.5% there was a difference in increased tension in the left masseter. Anthropometry of the face was suggested, where 25% showed significant variance of 01 cm of discrepancy on the right,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Muscle tension; Masseter; Electromyography.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000200008

Analysis of MR Imaging of Wrists in Female Patients with Carpal Tunnel Syndrome and Healthy Controls
Provedor de dados: 77
Autores: Karabulut,Özlen; Tuncer,Mehmet Cudi; Karabulut,Zülfü; Güzel,Ebru.
The objective of this study was to evaluate morphological changes of the median nerve in patients with carpal tunnel syndrome (CTS) and healthy controls, to correlate the MRI findings of wrists. This study compared not only morphological changes of the median nerve and also displayed descriptively structures in carpal tunnel between patients diagnosed with idopathic CTS and healthy controls. Our study involved 60 hand, 30 of hand were evaluated diagnosed with idiopathic CTS and 30 hand as healthy controls bilaterally. Two provocative tests (Phalen's and Tinel's test) were performed on each hand for both the patient group (60 wrist) and the control group (60 wrist). With regard to Phalen and Tinel's test results, 24 and 26 wrists were excluded from patient...
Tipo: Journal article
Palavras-chave: MR imaging; Carpal tunnel syndrome; Cross-sectional area; Signal intensity; Median nerve.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300025

Analysis of NH3-N Slow Release systems for fiber digestibility of low-quality forage: in vitro approach
Provedor de dados: 63
Autores: Cruz,Camila Conceição Tomé da; Pereira,Elaine Inácio; Sato,Patrícia Suemi; Guimarães,Gelton Geraldo Fernandes; Souza,Gilberto Batista de; Bernardi,Alberto Carlos de Campos; Ribeiro,Caue.
ABSTRACT: Urea is a common non-protein supplement used in ruminant feed; however, excessive consumption may lead to poisoning by NH3. Although the slow release of urea into the rumen has shown to be an essential aspect for ruminant feed, to date only a few studies have addressed this matter. In this study we examined the influence of five different NH3-N slow release systems based on clay-urea nanocomposites on the fiber digestibility of low-quality forage (sugarcane straw) in vitro. Physical properties of nanocomposites were evaluated and their effects on digestibility were tested in vitro using pristine urea as a positive control (level of 1 % of DM of sugarcane straw sample) and sugarcane (with no additives) as a negative control. Ammonia release and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Slow-release urea; Ruminants feed; Non-protein nitrogen.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000500401

Analysis of non-compliances in the organic certification system in Turkey
Provedor de dados: 21
Autores: Zanoli, Raffaele; Gambelli, Danilo; Bruschi, Viola.
Organic farming in Turkey is experiencing a strong growth in recent years, with a particular attention to export towards Europe. International and domestic trade opportunities require an efficient control system for organic products. In this paper we analyse the data from inspections of two European control bodies in Turkish farms to analyse risk patterns of non-compliance with the organic regulation. A proportion test is performed to identify the types of crops that are more likely related to non-compliant operators.
Tipo: Journal paper
Palavras-chave: Regulation.
Ano: 2012
URL: http://orgprints.org/27761/7/27761.pdf

Analysis of nozzle spray distribution for different nozzle height and pressure
Provedor de dados: 111
Autores: Khoshnam, Farhad.
A patternator was designed and constructed with the aim of field sprayers pattern testing and consequently application of more accurate weed control, reduce environmental and economic costs associated with weed control. The patternator was tested at six spray height (50, 60, 70, 80, 90 and 100 cm) for each of the three levels of system pressure (1.0, 2.0 and 3.0 bar). All measurements were performed spraying water with a temperature of 20 oC in the laboratory. Environmental conditions are kept constant at a temperature of 48 oC, relative humidity of 51% and wind speed 3 m/s. The Spray Width (cm), Standard Deviation and Coefficient of Variation (CV) of spray distribution patterns obtained from Patternator experiments at various nozzle heights and pressures....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sprayer; Pattern; Horizontal Patternator; Weed Control; Uniformity; Costs.
Ano: 2022
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6345

Analysis of p53 expression and proliferative assessment using PCNA in localized prostate carcinoma
Provedor de dados: 56
Autores: Leite,K.R.M.; Srougi,M.; Nesralhah,L.J.; Camara-Lopes,L.H.
The surgical specimens from 51 men submitted to radical prostatectomy for localized prostate cancer were examined by immunohistochemistry using proliferation cell nuclear antigen (PCNA) monoclonal antibody to evaluate the proliferative index (PI). The relationship between PI, biological variables and p53 protein expression was evaluated by immunohistochemistry. PI was low in invasive localized prostate carcinoma (mean, 12.4%) and the incidence of PCNA-positive cells was significantly higher in tumors with p53 expression (P = 0.0226). There was no statistical difference in PCNA values when biological parameters such as Gleason score, tumor volume, extraprostatic involvement, seminal vesicle infiltration or lymph node metastasis were considered. We conclude...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prostate carcinoma; P53; Proliferating cell nuclear antigen; PCNA.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000300006

Analysis of pollen load based on color, physicochemical composition and botanical source
Provedor de dados: 42
Autores: Modro,Anna F.H.; Silva,Izabel C.; Luz,Cynthia F.P.; Message,Dejair.
Pollen load samples from 10 hives of Apis mellifera (L.) were analyzed based on their physicochemical composition and botanical source, considering color as a parameter for quality control. In seven samples it was possible to establish the occurrence of more than 80% of a single pollen type, characterizing them as unifloral but with protein content variation. One of the samples was exclusively composed of saprophytic fungi (Cladosporium sp.). Comparing the mean results of the fungi loads with those of the nutritional components of pollen load, the former presented higher protein, mineral matter and dry matter and lower organic matter, ethereal extract and total carbohydrate values. The monochromatic samples met the physicochemical specifications regulating...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; Bees; Food source; Nutritional analysis; Palynology.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200014

Analysis of polymorphism at site -174 G/C of interleukin-6 promoter region in multiple myeloma
Provedor de dados: 56
Autores: Duch,C.R.; Figueiredo,M.S.; Ribas,C.; Almeida,M.S.S.; Colleoni,G.W.B.; Bordin,J.O.
It is well established that interleukin-6 (IL-6) is an essential growth factor for multiple myeloma (MM) and patients with increased IL-6 levels have a poor prognosis. In healthy subjects, the presence of the C allele at a polymorphic site (-174 G/C) of the IL-6 gene is related to low IL-6 levels. In view of the potential association of this particular polymorphism with IL-6 concentration, and the relevance of IL-6 in MM pathogenesis, the objective of the present study was to investigate the prevalence of IL-6 (-174 G/C) promoter polymorphism and its association with development of MM in Brazilian individuals. We investigated the prevalence of these alleles in 52 patients and 60 healthy subjects (matched by age, sex, and race) of a Brazilian population....
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Multiple myeloma; Interleukin-6; Polymorphisms.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000200014

Analysis of Potential for Linear Erosion in the Cerrado Biome Using Morphopedology
Provedor de dados: 90
Autores: Maranhão,Deyvid Diego Carvalho; Aguado,Oscar Ivan de Oro; Pereira,Marcos Gervasio; Araújo,Adelson Paulo; Castro,Selma Simões de; Ferreira Júnior,Laerte Guimarães.
ABSTRACT The Cerrado is a vegetation complex with a wide variety of phytophysiognomies, and sustainable management is essential for maintaining biodiversity. Morphopedology is a tool that can assist in developing plans for control of soil and land use, especially in evaluating the potential of soil erosion processes. This technique allows landscape units considered “homogeneous” to be distinguished, as a result of interaction between physiographic conditions. The aim of this study was to evaluate potential for erosion in São Miguel do Araguaia, state of Goiás, Brazil, through definition of morphopedological compartments (MPC), on the assumption that soil use has increased erosion. Landscape units were identified through use of geology overlay, hypsometry,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Erosivity; Erodibility; Pedology; Geomorphology; Soil science.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100514

ANALYSIS OF RANGELAND DEGRADATION USING STOCHASTIC DYNAMIC PROGRAMMING
Provedor de dados: 31
Autores: Passmore,   J.G.; Brown,   Colin G.
Degradation of arid rangeland, and efforts to control that degradation, have become topical issues. However, the inherent characteristics of the rangeland, and the intertemporal nature of the problem, complicate the analysis of degradation issues in the search for more appropriate rangeland policies. Stochastic dynamic programming is examined as one means of allowing for those complexities. Using the case of the Queensland mulga rangelands, optimal stocking rates are shown to rise with lower property sizes, higher discount rates, higher wool prices and declining risk aversion. Importantly, the analysis reveals that a strategy of high stocking rates with the potential for rangeland degradation is an optimal response to the economic and social factors that...
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1991
URL: http://purl.umn.edu/22765

Analysis of ranked ordered data when there are complete and partial ranking
Provedor de dados: 31
Autores: Pandit,   Mahesh; Paudel,   Krishna P.; Dunn,   Michael A.
Many methods are available to analyze rank ordered data. We used a spectral density analysis to identify most preferred options of Formosan Subterranean Termites (FST) control as ranked by Louisiana homeowners. Respondents are asked to rank four termite control methods form the most preferred option to the least preferred option. Spectral analysis of both complete and partial ranked data indicates that the most preferred termite control choice is a relatively cheap ($0.13 per square foot) option of a Liquid treatment.
Tipo: Conference Paper or Presentation
Palavras-chave: Complete and Partial ranked data; FST; Spectral analysis; Research Methods/ Statistical Methods; C65.
Ano: 2010
URL: http://purl.umn.edu/56430

Analysis of risk factors and clinical manifestations associated with Clostridium difficile disease in Serbian hospitalized patients
Provedor de dados: 58
Autores: Predrag,Stojanović.
Abstract Clostridium difficile is the leading cause of infectious diarrhoea in hospitalized patients. The aim of this study was to determine the risk factors important for the development of hospital-acquired Clostridium difficile-associated disease and clinical manifestations of Clostridium difficile-associated disease. The clinical trial group included 37 hospitalized patients who were selected according to the inclusion criteria. A control group of 74 hospitalized patients was individually matched with cases based on hospital, age (within 4 years), sex and month of admission.Clostridium difficile-associated disease most commonly manifested as diarrhoea (56.76%) and colitis (32%), while in 8.11% of patients, it was diagnosed as pseudomembranous colitis,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clostridium difficile; Hospital-acquired diarrhoea; Risk factors; Serbia.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000400902

Analysis of serum microRNA expression in male workers with occupational noise-induced hearing loss
Provedor de dados: 56
Autores: Li,Y.H.; Yang,Y.; Yan,Y.T.; Xu,L.W.; Ma,H.Y.; Shao,Y.X.; Cao,C.J.; Wu,X.; Qi,M.J.; Wu,Y.Y.; Chen,R.; Hong,Y.; Tan,X.H.; Yang,L.
Occupational noise-induced hearing loss (ONIHL) is a prevalent occupational disorder that impairs auditory function in workers exposed to prolonged noise. However, serum microRNA expression in ONIHL subjects has not yet been studied. We aimed to compare the serum microRNA expression profiles in male workers of ONIHL subjects and controls. MicroRNA microarray analysis revealed that four serum microRNAs were differentially expressed between controls (n=3) and ONIHL subjects (n=3). Among these microRNAs, three were upregulated (hsa-miR-3162-5p, hsa-miR-4484, hsa-miR-1229-5p) and one was downregulated (hsa-miR-4652-3p) in the ONIHL group (fold change &gt;1.5 and Pbon value &lt;0.05). Real time quantitative PCR was conducted for validation of the microRNA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MicroRNA; Noise-induced hearing loss; Serum; MiR-1229-5p; MAPK1.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000300601

Analysis of the abortive and/or infertilizing activity of Stryphnodendron adstringens (Mart. Coville)
Provedor de dados: 62
Autores: BÜRGER,Marilise Escobar; AHLERT,Neusa; BALDISSEROTTO,Bernardo; LANGELOH,Augusto; SCHIRMER,Baltazar; FOLETTO,Rejane.
Stryphnodendron adstringens (barbatiman) is a tree found from Pará to Mato Grosso do Sul and São Paulo States (Brazil). The aim of this study was to determine the toxicity of the extracts of the broad beans of this species and to verify if they have some effect on the pregnancy of rats. The broad beans were collected in the region of Cuiabá (MT, Brazil) and separated in husks and seeds. The crude hydroalcoholic (2:1) extracts were prepared at room temperature and dried at a maximum of 55ºC. Female virgin rats were mated and received the extracts (0.5 ml/100 g weight, 100 g/l) or water in the same proportion (control) by gavage from day 1 to day 7 of gestation. Laparatomies were made at day 7 to count the number of uterine implants and the rats were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infertility; Poisonous plants; Stryphnodendron adstringens.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961999000600003

Analysis of the association between spawning time QTL markers and the biannual spawning behavior in rainbow trout (Oncorhynchus mykiss)
Provedor de dados: 74
Autores: Colihueque,Nelson; Cárdenas,Rosy; Ramírez,Lorena; Estay,Francisco; Araneda,Cristian.
The rainbow trout is a salmonid fish that occasionally exhibits broodstocks with biannual spawning behavior, a phenomenon known as a double annual reproductive cycle (DARC). Spawning time quantitative trait loci (SPT-QTLs) affect the time of the year that female rainbow trout spawn and may influence expression of the DARC trait. In this study, microsatellite markers linked and unlinked to SPT-QTLs were genotyped to investigate the underlying genetics of this trait. SPT-QTLs influenced the DARC trait since in two case-control comparisons three linked markers (OmyFGT12TUF, One3ASC and One19ASC) had significant levels of allelic frequency differentiation and marker-character association. Furthermore, alleles of One3ASC and One19ASC had significantly higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Association analysis; Biannual spawning; Microsatellite markers; Rainbow trout.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000300032

ANALYSIS OF THE INITIAL GROWTH OF CASSAVA IN INTERCROPPING SYSTEM
Provedor de dados: 22
Autores: Ferreira, Evander Alves; Silva, Daniel Valadão; Braga, Renan Rodrigues; Oliveira, Maxwel Coura de; Pereira, Gustavo Antonio Mendes; Santos, José Barbosa dos; Sediyama, Tocio.
One of the main reasons why farmers in different regions prefer polycultures is that very often you can get higher yields in an area sown in polyculture than in monoculture with an equivalent area. Thus in systems polycultures the plants are in a state of permanent competition causing a reduction in plant growth consorts. The competition affects the production quantitatively and qualitatively, because it changes the efficiency of utilization of environmental resources such as water, light and nutrients, settling between culture and plants of other species existing on site. This competition also occurs between individuals of the same species or between biotypes prevalent in the area. Thus, the aim of this study was to evaluate the growth of two cultivars of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Produção vegetal; Agronomia.
Ano: 2014
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/7498

Analysis of the intronic single nucleotide polymorphism rs#466452 of the nephrin gene in patients with diabetic nephropathy
Provedor de dados: 48
Autores: GONZÁLEZ,RODRIGO; TIRADO,ARES; ROJAS,LUIS A; OSSANDÓN,FRANCISCO J; ALVO,MIRIAM; WOLFF,CARLOS; SEELENFREUND,DANIELA; DURRUTY,PILAR; LOBOS,SERGIO.
We present the analysis of an intronic polymorphism of the nephrin gene and its relationship to the development of diabetic nephropathy in a study of diabetes type 1 and type 2 patients. The frequency of the single nucleotide polymorphism rs#466452 in the nephrin gene was determined in 231 patients and control subjects. The C/T status of the polymorphism was assessed using restriction enzyme digestions and the nephrin transcript from a kidney biopsy was examined. Association between the polymorphism and clinical parameters was evaluated using multivaríate correspondence analysis. A bioinformatics analysis of the single nucleotide polymorphism rs#466452 suggested the appearance of a splicing enhancer sequence in intron 24 of the nephrin gene and a...
Tipo: Journal article
Palavras-chave: Diabetic nephropathy; NPHS1; Polymorphism; Splicing enhancer.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000200007

Analysis of the NMDA in Focal Cerebral Ischemia in Rats
Provedor de dados: 77
Autores: Tirapelli,D. P. C; Carlotti Jr,C. G; Leite,J. P; Lizarte,F. S. N; Tirapelli,L. F; Colli,B. O.
NMDAR (N-methyl-D-aspartate receptor) is one subtype of ionotrophic glutamate receptor which is extensively distributed in the central nervous system (CNS). In the mammalian CNS, NMDAR serves prominent roles in the pathophysiologic process of cerebral ischemia. This study aimed to investigate the pattern of expression of protein and gene of the excitatory neurotransmitter NMDAR in experimental focal cerebral ischemia and the hole of neuroprotection with hypothermia and ketoprofen. 120 rats were randomly divided into 6 groups (20 animals each): control - no surgery; sham - simulation of surgery; ischemic - focal ischemia for 1 hour, without reperfusion; ischemic + intraischemic hypothermia; ischemic + previous intravenous ketoprofen, and ischemic +...
Tipo: Journal article
Palavras-chave: NMDA expression; Cerebral ischemia; Neuroprotection; Hypothermia and ketoprofen.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300035

Analysis of the Phenol and Flavonoid Content from Basil Leaves (Ocimum Americanum L) Extract Using Pulsed Electric Field (PEF) Pre-Treatment
Provedor de dados: 111
Autores: Hendrawan, Yusuf; Sabrinauly, Sabrinauly; Hawa, La Choviya; Argo, Bambang Dwi; Rachmawati, Muchnuria.
Basil leaves (Ocimum Americanum Linn) are commonly known to contain phenol and flavonoid compounds which can act as antimicrobial and antioxidants. In general, the bioactive compound can be obtained by conventional extraction method, maceration. To increase the amount of bioactive compounds which can be extracted, it is necessary to conduct pre-treatment using Pulsed Electric Field (PEF). PEF has an advantage in increasing the compound transfer contained in cells to be extracted from the plant tissues via electroporation mechanisms, without causing significant temperature changes. This study aims to determine the effect of electric field strength variations (2, 3, and 4 kV/cm) and duration of pre-treatment (1, 2, and 3 minutes) to total phenol and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering Basil leaves; Phenol; Flavonoid; Pulsed electric field.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5240

Analysis of the QC/QA survey
Provedor de dados: 20
Autores: Rojas, Ricardo.
A short online survey or quality control/quality assurance procedures was carried out requesting information about procedures and details of the manuals, guidelines and special software that are used by respondents for ocean profile data. This was to assist the intersessional working group established through Resolution IODE-XVIII. 4 to carry out its work that including: (i) review existing quality control procedures and software; (ii) discuss quality control issues of historical, real-time, delayed-mode and modern ocean profile data; (iii) prepare a report on (i) and (ii) above.
Tipo: Conference Material
Palavras-chave: Surveys; Quality control; Quality assurance; Surveys; Quality assurance; Http://aims.fao.org/aos/agrovoc/c_7537; Http://aims.fao.org/aos/agrovoc/c_35287.
Ano: 2007
URL: http://hdl.handle.net/1834/2780

Analysis of the sex ratio in Bradysia matogrossensis (Diptera, Sciaridae)
Provedor de dados: 74
Autores: Rocha,Lincoln S.; Perondini,André Luiz P.
In sciarid flies, the control of sex determination and of the progeny sex ratio is exercised by the parental females, and is based on differential X-chromosome elimination in the initial stages of embryogenesis. In some species, the females produce unisexual progenies (monogenic females) while in others, the progenies consist of males and females (digenic females). The sex ratio of bisexual progenies is variable, and departs considerably from 1:1. Bradysia matogrossensis shows both monogenic and digenic reproduction. In a recently established laboratory strain of this species, 15% of the females were digenic, 10% produced only females, 13% produced only males, and 62% produced progenies with one predominant sex (33% predominantly of female and 29%...
Tipo: Info:eu-repo/semantics/article
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000100018

Analysis of toxicity on Bacillus sphaericus from amazonian soils to Anopheles darlingi and Culex quinquefasciatus larvae
Provedor de dados: 36
Autores: Litaiff,Eleilza de Castro; Tadei,Wanderli Pedro; Porto,Jorge Ivan Rebelo; Oliveira,Ila Maria de Aguiar.
Bioassays under laboratory conditions aiming to determine the larvicidal activity of Bacillus sphaericus were carried out on Anopheles darlingi and Culex quinquefasciatus. In order to estimate the toxicity through median lethal concentration (LC50) and the relative potency of the strains to B. sphaericus standard strain 2362, probit analysis was performed utilizing the POLO-PC program. The findings of LC50 pointed out high effectiveness on strains IB15 (0.040 ppm), IB19 and S1116 (0.048 ppm), IB16 (0.052 ppm) and S265 (0.057 ppm). Strain IB15 presented nearly 50% more potency than strain 2362 in bioassays conducted on A. darlingi. It was observed that IB16 and S1116 strains were the most powerful against C. quinquefasciatus, showing to be about 300-400%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vector control; Bioassays; Biolarvicides; Amazonian; Entomopathogens.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000200008

Analysis of tRNA halves (tsRNAs) in serum from cattle challenged with bovine viral diarrhea virus
Provedor de dados: 74
Autores: Taxis,Tasia M.; Bauermann,Fernando V.; Ridpath,Julia F.; Casas,Eduardo.
Abstract Acute infections of bovine viral diarrhea virus (BVDV) lead to a range of clinical presentations. Laboratory tests for detection depend on collection of samples during a short viremia. Acutely infected animals remain largely undiagnosed. Transfer RNA halves (tsRNAs) are hypothesized to function like microRNAs to regulate gene expression during an immune response. The objective of this study was to identify tsRNAs in cattle that had been challenged with a non-cytopathic field strain of BVDV. Colostrum-deprived neonatal Holstein calves were either challenged with BVDV (n=5) or mock challenged (n=4). Sera was collected prior to challenge and days 4, 9, and 16 post challenge. RNA was extracted and read counts of small non-coding RNAs were assessed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cattle; Bovine Viral Diarrhea Virus; Transfer RNA; Transfer RNA halves; Small non-coding RNA.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000300374

Analysis of Uruguayan weedy rice genetic diversity using AFLP molecular markers
Provedor de dados: 69
Autores: Federici,María Teresa; Vaughan,Duncan; Norihiko,Tomooka; Kaga,Akita; Xin,Wang Wang; Koji,Doi; Francis,Marta; Zorrilla,Gonzalo; Saldain,Nestor.
Weedy rice is a serious problem in Uruguayan rice fields since intensification of rice production started about 10 years ago. The genetic diversity of 26 weedy accessions of weedy rice and 6 Uruguayan cultivars were analyzed using AFLP (amplified fragment length polymorphisms) methodology. Abundant polymorphisms were found among samples tested. Using different methods of analysis three groups of samples were revealed. A relationship was found between three groups and morphological traits. One group had a black hull, purple apex and long awn (wild type traits) while another group had straw hull and apex, and short or no awn (domestication traits). The third group included the cultivars analyzed and some weedy rice samples. The weedy rice in this third group...
Tipo: Journal article
Ano: 2001
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582001000300008

Analysis of Willingness to Pay for Veterinary Services of the Livestock Owners of Sangli District of Maharashtra
Provedor de dados: 31
Autores: Kumar,   Sanjay; Mirajkar,   Pallavi P.; Singh,   Y.P.; Singh,   R.
Research Notes
Tipo: Journal Article
Palavras-chave: Veterinary services; Livestock health care; Willingness to pay; Animal health services; Agricultural and Food Policy; Q13; Q12; Q18.
Ano: 2011
URL: http://purl.umn.edu/109513

Analysis on Industry Structure Adjustment and Energy Consumption Based on Grey Theory—A Case Study of Qinghai Province
Provedor de dados: 31
Autores: Zhang,   Yin-ling; Wang,   Dan-tong; Zhao,   Wei.
In view of the complexity and non-linearity of energy consumption system and the status quo of the development of energy in Qinghai province, the relations between energy consumption and industrial structure is analyzed by using the quantitative analysis of grey relation degree by using the grey system theory. The relevancy degree among the primary industry, the secondary industry and the tertiary industry and living energy consumption are obtained, and then the trend of energy consumption in the following several years can be predicted. The results show that the secondary industry has the largest relevancy degree to the total energy consumption. In the end, according to the results of the research, several suggestions on how to saving energy are put...
Tipo: Journal Article
Palavras-chave: Grey relevancy analysis; Grey correlation degree; Industrial structure; Energy consumption; Qinghai Province; China; Agribusiness.
Ano: 2011
URL: http://purl.umn.edu/113929

Analyzing gene expression profiles in dilated cardiomyopathy via bioinformatics methods
Provedor de dados: 56
Autores: Wang,Liming; Zhu,L.; Luan,R.; Wang,L.; Fu,J.; Wang,X.; Sui,L.
Dilated cardiomyopathy (DCM) is characterized by ventricular dilatation, and it is a common cause of heart failure and cardiac transplantation. This study aimed to explore potential DCM-related genes and their underlying regulatory mechanism using methods of bioinformatics. The gene expression profiles of GSE3586 were downloaded from Gene Expression Omnibus database, including 15 normal samples and 13 DCM samples. The differentially expressed genes (DEGs) were identified between normal and DCM samples using Limma package in R language. Pathway enrichment analysis of DEGs was then performed. Meanwhile, the potential transcription factors (TFs) and microRNAs (miRNAs) of these DEGs were predicted based on their binding sequences. In addition, DEGs were mapped...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dilated cardiomyopathy; Differentially expressed genes; Pathway enrichment analysis; Transcription factors; MicroRNAs; Small molecules.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016001000706

Analyzing Market Price Transmission, Government Intervention and Weather Shocks for Rice Market in the Philippines
Provedor de dados: 31
Autores: Jolejole-Foreman,   Maria Christina; Mallory,   Mindy L.
In the Philippines, where rice is considered the most important food crop, attempts to influence rice prices have been prevalent. The government, through National Food Authority (NFA) has sought to establish stocks and control imports to stabilize prices since its establishment in 1972 to support farm gate prices and reduce retail price of rice. But data shows divergence in retail prices and farm prices since mid 1960s. In this paper, we use vector autoregression (VAR) to analyze the movement of Philippine rice margins with government stocks and weather supply shocks to able to determine government effectiveness in actual times of market stress. Comparing VARs across regions, we are able to identify the regions in which price margins are significantly...
Tipo: Conference Paper or Presentation
Palavras-chave: Vector-auto-regression; Price-Margin; Rice; Philippines; Policy; Agricultural and Food Policy; Demand and Price Analysis; Q11; Q13; Q18.
Ano: 2011
URL: http://purl.umn.edu/103163

ANALYZING PEST CONTROL STRATEGIES FOR COTTON WITH AN ENVIRONMENTAL IMPACT MATRIX
Provedor de dados: 31
Autores: Richardson,   James W.; Badger,   Daniel D.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1974
URL: http://purl.umn.edu/29825

Analyzing the Economic Impact of Climate Change on Global Timber Markets
Provedor de dados: 31
Autores: Sohngen,   Brent; Sedjo,   Roger A.; Mendelsohn,   Robert; Lyon,   Kenneth S.
In this paper, we show how ecological and economic models can be linked to determine the economic impact of climate change on global timber markets. We begin by discussing some of the important issues relevant to global impact analyses such as this. We then outline our general modeling framework and discuss the particular models that will be used. Finally, we discuss some of the important issues involved with linking the two types of models.
Tipo: Working or Discussion Paper
Palavras-chave: Climate change; Economic model; Timber; Timber market; Dynamic; Optimal control; Environmental Economics and Policy; Q10; Q23; Q24.
Ano: 1996
URL: http://purl.umn.edu/10462

Analyzing the Feasibility of Prairie Dog Hunting in the Northern Texas Panhandle
Provedor de dados: 31
Autores: Jones,   DeDe; Mayfield,   Gid.
Prairie dogs are burrowing rodents located throughout the United States.  The black-tailed prairie dog is a common species that primarily inhabits the Great Plains region, with a large population in Texas. While these animals continue to thrive in many locations, there has been a significant reduction in numbers over the past one hundred years.  Several conservation efforts have attempted to remedy this situation.  The Black-tailed Prairie Dog Conservation and Management Plan is a long-term monitoring program between the Texas Parks and Wildlife Department and cooperating landowners.  This plan’s purpose is to develop a strategy that conserves the species while simultaneously protecting property rights.  One of the plan’s recommended methods for keeping...
Tipo: Presentation
Palavras-chave: Prairie Dogs; Texas Ranching; Risk Management; Agribusiness; Agricultural Finance; Environmental Economics and Policy; Farm Management; Financial Economics; Land Economics/Use.
Ano: 2012
URL: http://purl.umn.edu/119764

Anandamide injected into the lateral ventricle of the brain inhibits submandibular salivary secretion by attenuating parasympathetic neurotransmission
Provedor de dados: 56
Autores: Fernandez-Solari,J.; Prestifilippo,J.P.; Vissio,P.; Ehrhart-Bornstein,M.; Bornstein,S.R.; Rettori,V.; Elverdin,J.C.
Our objective was to determine the effect of arachidonylethanolamide (anandamide, AEA) injected intracerebroventricularly (icv) into the lateral ventricle of the rat brain on submandibular gland (SMG) salivary secretion. Parasympathetic decentralization (PSD) produced by cutting the chorda tympani nerve strongly inhibited methacholine (MC)-induced salivary secretion while sympathetic denervation (SD) produced by removing the superior cervical ganglia reduced it slightly. Also, AEA (50 ng/5 µL, icv) significantly decreased MC-induced salivary secretion in intact rats (MC 1 µg/kg: control (C), 5.3 ± 0.6 vs AEA, 2.7 ± 0.6 mg; MC 3 µg/kg: C, 17.6 ± 1.0 vs AEA, 8.7 ± 0.9 mg; MC 10 µg/kg: C, 37.4 ± 1.2 vs AEA, 22.9 ± 2.6 mg). However, AEA did not alter the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anandamide; Parasympathetic nervous system; Submandibular gland; Cannabinoid receptor type 1; Gamma-aminobutyric acid.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000600010

Anarquismo urgente
Provedor de dados: 121
Autores: Edson Passetti; Passetti, Edson.
Tipo: Text
Palavras-chave: CONTROL SOCIAL; ANARQUISMO.
Ano: 2007
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=128061&tab=opac&oai:flacso.org.ec:128061

Anarquismos e sociedade de controle
Provedor de dados: 121
Autores: Edson Passetti; Passetti, Edson.
Tipo: Text
Palavras-chave: CONTROL SOCIAL; ANARQUISMO.
Ano: 2003
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=128062&tab=opac&oai:flacso.org.ec:128062

Anatomía y tolerancia a la desecación de semillas de cacao (Theobroma cacao L.)
Provedor de dados: 32
Autores: Rangel Fajardo, María Alma.
La adquisición de tolerancia a la desecación en semillas ortodoxas es una estrategia adaptativa  que no presentan las semillas del tipo recalcitrantes y por consiguiente son sensibles a la  desecación. El grado de tolerancia o sensibilidad a la desecación se ve afectada por varios  aspectos de origen genético, fisiológico, bioquímico y anatómico; por consiguiente existen  diferencias entre genotipos y entre individuos dentro del genotipo de la misma especie. En este  estudio se documentaron características de anatomía de las semillas de cacao, se midió el grado  de tolerancia a la desecación y la acumulación de azúcares en relación con tolerancia a la  desecación en poblaciones de tres orígenes genéticos de cacao (Theobroma cacao L.). Se  emplearon los...
Tipo: Tesis
Palavras-chave: Theobroma cacao L.; Anatomía; Desecación; Estaquiosa; Germinación; Rafinosa; Semilla; Sensibilidad; Doctorado; Producción de semillas; Anatomy; Drying; Germination; Raffinose; Seed sensitivity; Stachyose.
Ano: 2009
URL: http://hdl.handle.net/10521/1246

Anatomic and physiological modifications in seedlings of Coffea arabica cultivar Siriema under drought conditions
Provedor de dados: 64
Autores: Melo,Emanuelle Ferreira; Fernandes-Brum,Christiane Noronha; Pereira,Fabrício José; Castro,Evaristo Mauro de; Chalfun-Júnior,Antonio.
Due to the weather changes prognostic for the coming years, the understanding of water deficit and physiological responses of plants to drought becomes an important requirement in order to develop technologies such as mechanisms to assist plants to cope with longer drought periods, which will be essential to maintenance of Brazilian and worldwide production. This study aimed to evaluate ecophysiological and anatomical aspects as well as the nitrate reductase activity in Siriema coffee seedlings subjected to four treatments: Daily irrigated, non-irrigated, re-irrigated 24 hours and re-irrigated 48 hours after different stress periods. Non-irrigation promoted a reduction in leaf water potential being accented from the ninth day of evaluation onwards....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffee tree; Ecophysiology; Water stress; Nitrate reductase.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000100003

Anatomical Characters of Leave and Stem of Calea serrata Less., Asteraceae
Provedor de dados: 52
Autores: Camilotti,Júlia Gabriela; Biu,Ciane Costa; Farago,Paulo Vitor; Santos,Vera Lúcia Pereira dos; Franco,Celia Regina Cavichiolo; Budel,Jane Manfron.
The genus Calea belongs to the tribe Heliantheae and presents about 125 species. Calea serrata, popularly known as erva-de-cobra, chá-amargo and quebra-tudo, is an endemic species found in southern Brazil and is used in traditional medicine to treat ulcers and livers problems. The present work aimed to study the pharmacobotanical characters of leaves and stems of C. serrata for quality control purposes. The plant material was processed according to standard methods of light and scanning electron microscopy. Glandular capitate-stalked and capitate-sessile, uniseriate multicellular non-glandular trichome with tapered apical cell, conical non-glandular trichome, isobilateral mesophyll, secretory ducts near the endoderm and circular shape with six ribs in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calea serrata; Anatomical study; Quality control.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000600867

Anatomical modifications of Butia capitata propagated under colored shade nets
Provedor de dados: 42
Autores: COSTA,BÁRBARA N.S.; COSTA,IRTON J.S.; SOUZA,GENAINA A. DE; SANTOS,DALILHIA N. DOS; SILVEIRA,FLÁVIA A. DA; MELO,EVALDO T. DE; MARTINS,ADALVAN D.; PASQUAL,MOACIR; SETOTAW,TESFAHUN A.; RODRIGUES,FILIPE A.
Abstract The jelly palm plant [Butia capitata (Martius) Beccari] is a native palm of the Cerrado biome used for many purposes in northern Minas Gerais State, Brazil. Dormancy is common in palm seeds, resulting in slow and uneven germination that may take years to complete. Modification in the growth pattern, anatomical parameters, physiological and biochemical characteristics of the plant can be verified due to changes in the light spectrum transmitted through colored shade nets used. Therefore, the objective of this study is to evaluate the effect of colored shade nets on the leaf and root anatomy of the jelly palm plant. The experiment was performed in a completely randomized design, with five treatments, ten replicates and eight plants per replicate,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy; Environment; Palms; Propagation.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703615

Anatomical, phytochemical and histochemical study of Solidago chilensis Meyen
Provedor de dados: 42
Autores: SOUZA,DOUGLAS M.F. DE; SÁ,RAFAELA D.; ARAÚJO,EVANI L.; RANDAU,KARINA P.
ABSTRACT Solidago chilensis Meyen, belonging to the family Asteraceae, is a plant native to South America and the only representative of the genus in Brazil. This species is popularly known as “arnica” and is used to treat bruises, muscle pain and inflammation. The objective of this work was to contribute to the pharmacognostic standardization of S. chilensis. Cross-sections were obtained, by freehand, for microscopic analysis of root, stem and leaf; for these parts of the plant maceration was also performed according to the method of Jeffrey. For the leaf were still made paradermal sections, scanning electron microscopy analysis, phytochemical and histochemical tests. Thus, it was determined anatomical features useful for diagnosis of the species which,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy; Arnica; Asteraceae; Histochemistry; Phytochemistry; Solidago chilensis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502107

Anatomy of a field trial: Wood-based biochar and compost influences a Pacific Northwest soil
Provedor de dados: 18
Autores: Ippolito, J.A.; Grob, J; Donnelly, A.
Biochar land application research in elevated rainfall areas (980 millimeters of annual rainfall) of the U.S. Pacific Northwest is lacking.  A proof-of-concept field study examined the effects of spruce-pine-fir wood chip biochar (slow pyrolysis; 450-500 degrees Celsius; 35 megagrams per hectare), dairy manure compost (105 megagrams per hectare), compost + biochar (35 and 105 megagrams per hectare, respectively), and a control (no biochar or compost) on glacially altered soil (sandy or loamy skeletal, isotonic, mesic humic or aquic Dystroxerepts) chemical properties and growth characteristics of vetch and sweet corn over a growing season.  In-season liming (5.4 megagrams per hectare) occurred to raise the soil pH for adequate crop growth.  Biochar, alone...
Tipo: Article
Palavras-chave: Chemistry; Manure; Research methodology; Fertility.
Ano: 2015
URL: http://eprints.nwisrl.ars.usda.gov/1595/1/1553.pdf

Anatomy of corpus callosum in prenatally malnourished rats
Provedor de dados: 48
Autores: Olivares,Ricardo; Morgan,Carlos; Pérez,Hernán; Hernández,Alejandro; Aboitiz,Francisco; Soto-Moyano,Rubén; Gil,Julio; Ortiz,Alexis; Flores,Osvaldo; Gimeno,Miguel; Laborda,Jesús.
The effect of prenatal malnutrition on the anatomy of the corpus callosum was assessed in adult rats (45-52 days old). In the prenatally malnourished animals we observed a significant reduction of the corpus callosum total area, partial areas, and perimeter, as compared with normal animals. In addition, the splenium of corpus callosum (posterior fifth) showed a significant decrease of fiber diameters in the myelinated fibers without changing density. There was also a significant decrease in diameter and a significant increase in density of unmyelinated fibers. Measurements of perimeter's fractal dimensions from sagittal sections of the brain and corpus callosum did not show significant differences between malnourished and control animals. These findings...
Tipo: Journal article
Palavras-chave: Corpus callosum; Prenatal malnutrition; Rat; Splenium.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000100012

Anbau und Düngung von Winterraps (Brassica napus L.)  im Ökologischen Landbau
Provedor de dados: 21
Autores: Stumm, Christoph; Berg, Dr. Martin; Köpke, Prof. Dr. Ulrich.
At the experimental farm Wiesengut in Hennef (Germany) in 2007/8 four different  cultivation methods of rapeseed and an application of fertiliser in springtime were  tested in order to manage weeds, to reduce nitrogen losses during wintertime and to  enhance grain yield. Cultivation methods tested included i. narrow row distance (12  cm), no mechanical weed control; ii. wide row distance (24 cm), mechanical hoeing;  iii. rapeseed sown in double rows intercropped with buckwheat (Fagopyrum  esculentum Moench) sown in double rows, row distance 12 cm, no mechanical weed  control; iv. rapeseed sown in double rows and left double rows free, row distance  12 cm, mechanical hoeing. In a two factorial completely randomised block design  these treatments were...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Crop combinations and interactions Weed management Composting and manuring.
Ano: 2009
URL: http://orgprints.org/14338/1/Stumm_14338.pdf

Anbauwürdigkeit alter im Vergleich zu modernen Braugersten
Provedor de dados: 21
Autores: Urbatzka, Peer; Cais, Kathrin; Salzeder, Georg; Herz, Markus.
Cropping spring barley, long varieties with vigorous growth are desired in organic farming expecting better regulation of weeds. Six old varieties were compared to three modern varieties in a field trial during 2010 and 2011 nearby Freising, Bavaria. The modern varieties were the recommended varieties for Bavaria at beginning of the trial. Higher crop yields were determined for modern varieties with limitation for one of these varieties. The malt quality of the modern varieties was considerably better than for the old varieties. Vigorous growth and plant length was higher for all and for five of the six old in comparison to modern varieties, respectively. But no differences in weed pressure could be measured due to successful mechanical weed control....
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2013
URL: http://orgprints.org/21080/3/21080_Urbatzka.pdf

Anchusa italica extract: phytochemical and neuroprotective evaluation on global cerebral ischemia and reperfusion
Provedor de dados: 60
Autores: Torki,Akram; Khalaji-Pirbalouty,Valiallah; Lorigooini,Zahra; Rafieian-Kopaei,Mahmoud; Sadeghimanesh,Arezo; Rabiei,Zahra.
Abstract Stroke is the third leading cause of mortality and disability in industrial countries. Treatment with herbs with antioxidant properties has been reported to be an alternative to the conventional treatments. This study was conducted to investigate the effect of Anchusa italica extract on hippocampal injury induced by transient global cerebral ischemia and reperfusion in the rat. To do so, 50 rats were randomly assigned to five groups; control, sham, ischemia, and 50 or 100 mg/kg of Anchusa italica treated animals. Ischemia was induced by occlusion of carotid artery for 30 minutes. Afterward, behavioral tests and biochemical analyses were conducted. Induction of ischemia/reperfusion caused a decline in learning and passive avoidance memory in rats....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boraginaceae/phytochemistry; Brain ischemia; Spatial memory/drug effects; Malondialdehyde/pharmacology; Neuroprotection/drug effects; Lipidic peroxidation/drug effects; Antioxidant capacity; Passive avoidance memory.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000100613

Ancient Wheat Species Can Extend Biodiversity of Cultivated  Crops
Provedor de dados: 21
Autores: Moudry, Jan; Konvalina, Petr; Stehno, Zdenek; Capouchova, Ivana; Moudry, Jan (Jr.).
Wheat genetic resources may be grown in organic farming systems or in less favourable areas for bread wheat species. Characteristics of hulled wheat species (23 varieties of einkorn, emmer wheat, spelt wheat) were studied and evaluated within a two-year trial period (which was executed on certified organic fields) and they were compared to characteristics of landraces and modern bread wheat varieties. The main aim of our study was to evaluate the potential uses of genetic resources of wheat in organic farming. The hulled wheat species were resistant to mildew and brown rust. Their grains were less contaminated with DON than the grains of the control varieties. The grain yield rate was reduced. Per hectare crude protein yield was higher in spelt and emmer...
Tipo: Journal paper
Palavras-chave: Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2011
URL: http://orgprints.org/20763/1/SRE.pdf

Ancillary Benefits of Reduced Air Pollution in the United States from Moderate Greenhouse Gas Mitigation Policies in the Electricity Sector
Provedor de dados: 31
Autores: Burtraw,   Dallas; Krupnick,   Alan J.; Palmer,   Karen L.; Paul,   Anthony; Toman,   Michael; Bloyd,   Cary.
This paper considers how moderate actions to slow atmospheric accumulation of greenhouse gases from fossil fuel use also could reduce conventional air pollutants in the United States. The benefits that result would be "ancillary" to greenhouse gas abatement. Moreover, the benefits would tend to accrue locally and in the near term, while benefits from reduced climate change mostly accrue globally and over a time frame of several decades or longer. The previous literature suggests that changes in nitrogen oxides (NOx) would be the most important consequence of moderate carbon policies. We calculate these changes in a detailed electricity model linked to an integrated assessment framework to value changes in human health. A tax of $25 per metric ton of carbon...
Tipo: Conference Paper or Presentation
Palavras-chave: Climate change; Greenhouse gas; Ancillary benefits; Air pollution; Co-control benefits; Nitrogen oxides; Sulfur dioxide; Carbon dioxide; Particulates; Health; Environmental Economics and Policy; H23; I18; Q48.
Ano: 2001
URL: http://purl.umn.edu/10664

Anemia infecciosa equina: epizootiologia, prevencao e controle no Pantanal.
Provedor de dados: 14
Autores: SILVA, R. A. M. S.; ABREU, U. G. P. de; BARROS, A. T. M. de.
Os equideos sao ferramentas de trabalho essenciais a mais importante atividade economica do Pantanal - a pecuaria de corte, a qual e desenvolvida extensivamente na regiao. A Anemia Infecciosa Equina (AIE), conhecida mundialmente como Febre-do-pantano, e considerada uma das principais doencas que acometem equideos no Pantanal. Durante seis anos, entre 1990 e 1995, a Embrapa Pantanal conduziu pesquisas sobre a AIE na regiao, as quais envolveram 28 fazendas e 3.285 equinos. Estudos epizootiologicos permitiram a obtencao de um perfil de prevalencia da AIE em equinos, em relacao ao sexo, idade e manejo. Tambem, estudos sobre vetores (mutucas) incluiram o levantamento e sazonalidade de especies, definicao das epocas de maior risco de transmissao e aspectos da...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Equino; AIE; Anemia infecciosa equina; Controle; Horse; Disease; Control.; Doença; Epidemiologia; Profilaxia.; Brazil; Equidae; Epidemiology; Equine infectious anemia.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/807376

Anencephaly and residence near textile industries: an epidemiological case-control study in South America
Provedor de dados: 46
Autores: Baldo,Cecilia Carolina; Campaña,Hebe; Gili,Juan Antonio; Poletta,Fernando Adrián; López-Camelo,Jorge Santiago.
Case reports on solvent exposure in humans and occupational as well as water contamination studies are the main source of information about the adverse effect of solvents on pregnancy. This matched case-control study evaluates the environmental exposure to organic solvents released by textile industries and the risk of anencephaly. The sample comprises 69 cases and 207 controls registered in the ECLAMC network in five counties from Argentina between 1982 and 1994. Statistically non-significant risk was observed for mothers living within a radius of 3 km from the textile industry (OR=1.09, 95% CI=0.60-2.02, p=0.774). A lineal risk trend could not be shown, although a slightly increased risk was observed for mothers living less than 2 km far from textile...
Tipo: Info:eu-repo/semantics/article
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332008000100002

Anesthesia of Epinephelus marginatus with essential oil of Aloysia polystachya: an approach on blood parameters
Provedor de dados: 42
Autores: FOGLIARINI,CARINE O.; GARLET,QUELEN I.; PARODI,THAYLISE V.; BECKER,ALEXSSANDRO G.; GARCIA,LUCIANO O.; HEINZMANN,BERTA M.; PEREIRA,ANA MARIA S.; BALDISSEROTTO,BERNARDO.
ABSTRACT This study investigated the anesthetic potential of the essential oil (EO) of Aloysia polystachya in juveniles of dusky grouper (Epinephelus marginatus). Fish were exposed to different concentrations of EO of A. polystachya to evaluate time of induction and recovery from anesthesia. In the second experiment, fish were divided into four groups: control, ethanol and 50 or 300 µL L−1 EO of A. polystachya, and each group was submitted to induction for 3.5 min and recovery for 5 or 10 min. The blood gases and glucose levels showed alterations as a function of the recovery times, but Na+ and K+ levels did not show any alteration. In conclusion, the EO from leaves of A. polystachya is an effective anesthetic for dusky grouper, because anesthesia was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anesthetic efficacy; Blood gases; Glucose; Hemoglobin; Plasma ion levels.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200445

Anesthesia of silver catfish with eugenol: time of induction, cortisol response and sensory analysis of fillet
Provedor de dados: 65
Autores: Cunha,Mauro Alves da; Zeppenfeld,Carla Cristina; Garcia,Luciano de Oliveira; Loro,Vania Lucia; Fonseca,Milene Braga da; Emanuelli,Tatiana; Veeck,Ana Paula de Lima; Copatti,Carlos Eduardo; Baldisserotto,Bernardo.
The aim of this study was to identify the time of anesthetic induction and recovery of silver catfish (Rhamdia quelen) exposed to eugenol. It was also determined the efficacy of the anesthetic as a stress reducing agent and performed a sensory analysis of the fillets from fish exposed to this substance. The silver catfish were exposed to air for 1min to carry out biometry, and blood was collected at 0, 1 and 4 hours later. Eugenol can be used in the range of 20-50mg L-1 for anesthetic induction in silver catfish, and recovery time from anesthesia was not affected by eugenol concentration. The control group showed significantly higher cortisol levels 4 hours after biometry than at time zero. Fish anesthetized with eugenol (50mg L-1) presented significantly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clove oil; Rhamdia quelen; Sedation; Stress; Taste.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010001000009

Anesthetic activity and bio-guided fractionation of the essential oil of Aloysia gratissima (Gillies &amp;amp; Hook.) Tronc. in silver catfish Rhamdia quelen
Provedor de dados: 42
Autores: BENOVIT,SIMONE C.; SILVA,LENISE L.; SALBEGO,JOSEÂNIA; LORO,VANIA L.; MALLMANN,CARLOS A.; BALDISSEROTTO,BERNARDO; FLORES,ERICO M.M.; HEINZMANN,BERTA M.
This work aimed to determine the efficacy of the essential oil of A. gratissima as anesthetic for silver catfish, and to perform the bio-guided fractionation of essential oil aiming to isolate compounds responsible for the noted effects. Fish were submitted to anesthesia bath with essential oil, its fractions and isolated compounds to determine time of anesthetic induction and recovery. Eugenol (50 mg L-1) was used as positive control. Essential oil of A. gratissima was effective as an anesthetic at concentrations of 300 to 900 mg L-1. Fish presented involuntary muscle contractions during induction and recovery. The bio-guided fractionation of essential oil furnishedE-(-)-pinocamphone, (-)-caryophyllene oxide, (-)-guaiol and (+)-spathulenol....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anesthesia (-)-caryophyllene oxide E-(-)-pinocamphone (-)-guaiol; Silver catfish (+)-spathulenol.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000401675

Anesthetic induction and recovery time of Centropomus parallelus exposed to the essential oil of Aloysia triphylla
Provedor de dados: 65
Autores: Parodi,Thaylise Vey; Santos,Celina Alcoforado dos; Veronez,Alexandra; Gomes,Levy de Carvalho; Heinzmann,Berta Maria; Baldisserotto,Bernardo.
ABSTRACT: This study analyzed the effectiveness of the essential oil of  Aloysia triphylla (EOA) as an anesthetic and stress reducing agent in the transport of fat snook ( Centropomus parallelus ). Juveniles were exposed to different concentrations of EOA (seawater-adapted: 25-300μL L-1; freshwater-adapted: 200μL L-1) to identify the anesthetic induction and recovery times. In an additional experiment, seawater-adapted fat snook were transported in plastic bags with 10 or 20μL L-1 EOA for 6 or 24h. The increased concentration of EOA proportionally decreased the time required for anesthesia induction. Mortality was 30 and 70% in fat snook transported with 10 and 20µL L-1, respectively, 24h after transport. The addition of 20µL L-1 EOA significantly reduced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anesthesia; Blood parameters; Fat snook; Natural product; Transport.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202142

Anesthetic properties of Ocimum gratissimum essential oil for juvenile matrinxã
Provedor de dados: 2
Autores: Ribeiro, Allyson Soares; Batista, Erix dos Santos; Dairiki, Jony Koiji; Chaves, Francisco Célio Maia; Inoue, Luis Antônio Kioshi Aoki.
 The matrinxã fish is suitable for Amazonian aquaculture, exhibiting positive characteristics such as good growth and feed conversion ratio. However, it is a very active fish and must be anesthetized for handling. The present study evaluated the use of Ocimum gratissimum essential oil (EO) as anesthetic for juvenile matrinxãs. A first experiment assessed the induction time to anesthesia of 7 concentrations (20, 30, 40, 50, 60, 70 and 80 mg L-1 of O. gratissimum (EO). A second experiment investigated the physiological response to the anesthetic through analysis of tissue and blood parameters collected 0h (T0) and 24h after (T24) the experimental protocols that were applied to 4 groups: control, handling without O. gratissimum (EO) and handling with two EO...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.05.03.00-6 fish; Handling; Brycon amazonicus; Anesthesia.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/28787

Anethole reduces oxidative stress and improves in vitro survival and activation of primordial follicles
Provedor de dados: 56
Autores: Sá,N.A.R.; Bruno,J.B.; Guerreiro,D.D.; Cadenas,J.; Alves,B.G.; Cibin,F.W.S.; Leal-Cardoso,J.H.; Gastal,E.L.; Figueiredo,J.R.
Primordial follicles, the main source of oocytes in the ovary, are essential for the maintenance of fertility throughout the reproductive lifespan. To the best of our knowledge, there are no reports describing the effect of anethole on this important ovarian follicle population. The aim of the study was to investigate the effect of different anethole concentrations on the in vitro culture of caprine preantral follicles enclosed in ovarian tissue. Randomized ovarian fragments were fixed immediately (non-cultured treatment) or distributed into five treatments: α-MEM+ (cultured control), α-MEM+ supplemented with ascorbic acid at 50 μg/mL (AA), and anethole at 30 (AN30), 300 (AN300), or 2000 µg/mL (AN2000), for 1 or 7 days. After 7 days of culture, a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Anethole; ROS; Primordial follicle; Caprine.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000800602

Aneuploidy and its relationship with growth in different populations of the Pacific oyster (Crassostrea gigas, Thunberg)
Provedor de dados: 5
Autores: Boudry, Pierre; Leitao, Alexandra; Mccombie, Helen; Thiriot-quievreux, Catherine.
Cytogenetic abnormalities arising both in mitosis and meiosis are known to be common in bivalves. Here we review result obtained from the observations of somatic aneuploidy in different populations of the commercially important Pacific oyster, Crassostrea gigas. The oysters studied were either (1) produced in IFREMER hatcheries between 1986 and 1999, (some of these were part of the EU funded programme GENEPHYS); or (2) collected from wild populations along the French Atlantic coast. Chromosome numbers were scored from 30 mitotic metaphases in gill tissue per  individual studied. Aneuploid cells (2n - X) were observed in all the 13 populations studied. A highly significant negative correlation was observed between the level of aneuploidy and growth, i.e....
Tipo: Text
Palavras-chave: Growth; Genetic; Aneuploidy; Crassostrea gigas; Pacific oysters.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/acte-3446.pdf

Anfälligkeit einer Sommererbse gegenüber Isolaten von Pathogenarten, die von symptomfreien Kleearten und Wicken isoliert wurden
Provedor de dados: 21
Autores: Šišić, Adnan; Bacanovic, Jelena; Bruns, Christian; Finckh, Maria R.
Integration of additional leguminous living mulch and cover crop species holds a great potential for reducing external inputs and improving agricultural sustainability. However, changes towards legume rich crop rotations raises concerns as many of the species of interest share important soil-borne pathogens with some important main crops such as peas, beans and cereals. The pathogenicity towards the spring pea variety Santana was determined for 67 isolates of Fusarium oxysporum, F. solani, F. avenaceum, Didymella spp., Phoma medicaginis and Phoma spp. obtained from seemingly healhty roots of Trifolium subterraneum, T. repens, Vicia villosa and V. sativa. Only one isolate of F. solani and two isolates of Phoma spp. were nonpathogenic. F. avenaceum isolates...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions Crop health; Quality; Protection.
Ano: 2015
URL: http://orgprints.org/27145/1/27145_sisic.pdf

Anfälligkeit neuer Kartoffelsorten gegenüber Kraut- und Knollenfäule (Phytophthora infestans) und Rhizoctonia (Rhizoctonia solani) – entscheidend für Ertrags- und Qualitätssicherung im biologischen Anbau
Provedor de dados: 21
Autores: Dupuis, B; Reust, W; Schwärzel, R; Hebeisen, Th; Ballmer, Th; Musa, T.
Potato is affected by numerous diseases. Among those diseases, late blight (Phytophthora infestans) and rhizoctonia (Rhizoctonia solani) have a strong economic impact. Organic farming doesn’t have efficient protection products to control those diseases and to guarantee yield and production quality. Furthermore, we observe that organic food chain propose the same cultivars as the traditional food chain and those cultivars are generally susceptible to late blight. Regarding to the trials managed to propose new cultivars to Swiss cultivars recommendation list, there are numerous new cultivars with interesting resistance profile. Among 141 cultivars tested, 30 could be proposed to the organic food chain. Indeed, those cultivars are less susceptible to late...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/14780/1/Late_Blight_ACW_ART_final.pdf

Anfälligkeit von Winterweizen- und Spelzweizensorten  gegenüber Steinbrand (Tilletia caries)
Provedor de dados: 21
Autores: Voit, Benno; Bauermeister, Regula; Killermann, Berta.
15 wheat and 4 spelt varieties suitable for ecological farming have been cultivated and tested for susceptibility to common bunt of wheat (T. caries). The 2-years randomized  field trials have been carried out at 1 site, with 4 replicates and 10 m row length on naturally infested fields with T. caries. Sowing, weed control and harvesting was done  by hand. The number of infested ears has been counted and the number of spores per kernel or spelt has been determined according ISTA. The infestation by wheat of the highest (Elixer, Meister) and lowest (Butaro, Florian) susceptible wheat varieties was higher than 10,000 and lower than 1,000 spores per kernel, respectively. The four spelt varieties had the lowest infestation significantly below 100 spores per...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Crop husbandry Breeding; Genetics and propagation Crop health; Quality; Protection.
Ano: 2017
URL: http://orgprints.org/31810/1/Anf%C3%A4lligkeit%20von%20Winterweizen-%20und%20Spelzweizensorten%20gegen%C3%BCber%20Steinbrand.pdf

Angina pectoris in patients with HIV/AIDS: prevalence and risk factors
Provedor de dados: 55
Autores: Zirpoli,Josefina Cláudia; Lacerda,Heloisa Ramos; Albuquerque,Valéria Maria Gonçalves de; Albuquerque,Maria de Fátima Pessoa Militão de; Miranda Filho,Demócrito de Barros; Monteiro,Verônica Soares; Barros,Isly Lucena de; Arruda Junior,Evanízio Roque de; Montarroyos,Ulisses Ramos; Ximenes,Ricardo Arraes de Alencar.
INTRODUCTION: The incidence of ischemic heart disease is higher in patients with HIV/AIDS. However, the frequency of angina pectoris in these patients is still not known. Literature about this subject is still scarce. OBJECTIVE: To evaluate the prevalence of angina pectoris and risk factors for coronary disease and to examine the association between traditional risk factors and HIV-related risk factors and angina pectoris. METHOD: An epidemiological cross-sectional study, analyzed as case-control study, involving 584 patients with HIV/AIDS. Angina pectoris was identified by Rose questionnaire, classified as definite or possible. Information regarding risk factors was obtained through a questionnaire, biochemical laboratory tests, medical records and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acquired immunodeficiency; Syndrome; Angina pectoris; Coronary disease; Risk factors.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000100001

Angiogenesis in Chronic Obstructive Pulmonary Disease
Provedor de dados: 17
Autores: Alessandro Matarese; Gaetano Santulli.
Angiogenesis is a crucial component of lung pathophysiology, not only in cancer but also in other disorders, such as chronic obstructive pulmonary disease (COPD). In COPD angiogenesis is definitely able to control and orchestrate the progression of airway remodeling. Herein, we provide several remarkable translational aspects of angiogenesis in COPD, exploring both basic and clinical research in this field. Indeed, we present a number of pro- and anti-angiogenic factors, which can be also used as potential biomarkers to monitor disease progression. &amp;#xd;&amp;#xa;&amp;#xd;&amp;#xa;This pre-print has subsequently been published at http://www.unisa.it/uploads/7100/06.pdf
Tipo: Manuscript
Palavras-chave: Immunology; Molecular Cell Biology; Pharmacology.
Ano: 2012
URL: http://precedings.nature.com/documents/7112/version/1

Angiotensin and baroreflex control of the circulation
Provedor de dados: 56
Autores: Head,G.A.; Saigusa,T.; Mayorov,D.N.
There is a close association between the location of angiotensin (Ang) receptors and many important brain nuclei involved in the regulation of the cardiovascular system. The present review encompasses the physiological role of Ang II in the brainstem, particularly in relation to its influence on baroreflex control of the heart and kidney. Activation of AT1 receptors in the brainstem by fourth ventricle (4V) administration to conscious rabbits or local administration of Ang II into the rostral ventrolateral medulla (RVLM) of anesthetized rabbits acutely increases renal sympathetic nerve activity (RSNA) and RSNA baroreflex responses. Administration of the Ang antagonist Sarile into the RVLM of anesthetized rabbits blocked the effects of Ang II on the RSNA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Angiotensin II; AT1 receptors; Losartan; Renal sympathetic activity; Baroreflex; Rostral ventrolateral medulla; Blood pressure; Rabbit.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000900005

Angiotensin II type 1 receptor A1166C GENE polymorphism and essential hypertension in San Luis
Provedor de dados: 47
Autores: Lapierre,Alicia Viviana; Arce,María Elena; Lopez,José Raúl; Ciuffo,Gladys María.
Essential hypertension is considered a multifactorial trait resulting from a combination of environmental and genetic factors. The angiotensin II type 1 receptor mediates the vasoconstrictor and growthpromoting effects of Ang II. The A1166C polymorphism of the AT1 receptor gene may be associated with cardiovascular phenotypes, such as high arterial blood pressure, aortic stiffness, and increased cardiovascular risk. We investigated the association between this A1166C polymorphism and hypertension in hypertense and normotense subjects from San Luis (Argentina) by mismatch PCR-RFLP analysis. Hypertense patients exhibited significant increases in lipid related values and body mass index. The frequency of occurrence of the C1166 allele was higher among...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Angiotensin II; A1166C polymorphism; Risk factors; RAS system; Pharmacogenetics.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452006000300005

Angiotensin-(1-7) improves the post-ischemic function in isolated perfused rat hearts
Provedor de dados: 56
Autores: Ferreira,A.J.; Santos,R.A.S.; Almeida,A.P.
We evaluated the effects of angiotensin-(1-7) (Ang-(1-7)) on post-ischemic function in isolated hearts from adult male Wistar rats perfused according to the Langendorff technique. Local ischemia was induced by coronary ligation for 15 min. After ischemia, hearts were reperfused for 30 min. Addition of angiotensin II (Ang II) (0.20 nM, N = 10) or Ang-(1-7) (0.22 nM, N = 10) to the Krebs-Ringer perfusion solution (KRS) before the occlusion did not modify diastolic or systolic tension, heart rate or coronary flow (basal values for Ang-(1-7)-treated hearts: 0.72 ± 0.08 g, 10.50 ± 0.66 g, 216 ± 9 bpm, 5.78 ± 0.60 ml/min, respectively). During the period of occlusion, the coronary flow, heart rate and systolic tension decreased (values for Ang-(1-7)-treated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Angiotensin-(1-7); Rat heart; Ischemia/reperfusion; Systolic and diastolic tension.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000900009

Angiotensin-(1–7) inhibits inflammation and oxidative stress to relieve lung injury induced by chronic intermittent hypoxia in rats
Provedor de dados: 56
Autores: Lu,W.; Kang,J.; Hu,K.; Tang,S.; Zhou,X.; Yu,S.; Li,Y.; Xu,L.
Obstructive sleep apnea is associated with inflammation and oxidative stress in lung tissues and can lead to metabolic abnormalities. We investigated the effects of angiotensin1–7 [Ang-(1–7)] on lung injury in rats induced by chronic intermittent hypoxia (CIH). We randomly assigned 32 male Sprague-Dawley rats (180–200 g) to normoxia control (NC), CIH-untreated (uCIH), Ang-(1–7)-treated normoxia control (N-A), and Ang-(1–7)-treated CIH (CIH-A) groups. Oxidative stress biomarkers were measured in lung tissues, and expression of NADPH oxidase 4 (Nox4) and Nox subunits (p22phox, and p47phox) was determined by Western blot and reverse transcription-polymerase chain reaction. Pulmonary pathological changes were more evident in the uCIH group than in the other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ang-(1–7); Lung injury; Obstructive sleep apnea; Inflammation; Oxidative stress; Chronic intermittent hypoxia.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016001000603

Angiotensin-(1-7) relieved renal injury induced by chronic intermittent hypoxia in rats by reducing inflammation, oxidative stress and fibrosis
Provedor de dados: 56
Autores: Lu,W.; Kang,J.; Hu,K.; Tang,S.; Zhou,X.; Yu,S.; Xu,L.
We aimed to study the renal injury and hypertension induced by chronic intermittent hypoxia (CIH) and the protective effects mediated by angiotensin 1-7 [Ang(1-7)]. We randomly assigned 32 male Sprague-Dawley rats (body weight 180-200 g) to normoxia control, CIH, Ang(1-7)-treated normoxia, and Ang(1-7)-treated CIH groups. Systolic blood pressure (SBP) was monitored at the start and end of each week. Renal sympathetic nerve activity (RSNA) was recorded. CTGF and TGF-β were detected by immunohistochemistry and western blotting. Tissue parameters of oxidative stress were also determined. In addition, renal levels of interleukin-6, tumor necrosis factor-α, nitrotyrosine, and hypoxia-inducible factor-1α were determined by immunohistochemistry, immunoblotting,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ang(1-7); Renal injury; Obstructive sleep apnea; Inflammation; Oxidative stress; Fibrosis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000100604

Angiotensin-converting enzyme inhibition by lisinopril enhances liver regeneration in rats
Provedor de dados: 56
Autores: Ramalho,F.S.; Ramalho,L.N.Z.; Castro-e-Silva Júnior,O.; Zucoloto,S.; Corrêa,F.M.A.
Bradykinin has been reported to act as a growth factor for fibroblasts, mesangial cells and keratinocytes. Recently, we reported that bradykinin augments liver regeneration after partial hepatectomy in rats. Angiotensin-converting enzyme (ACE) is also a powerful bradykinin-degrading enzyme. We have investigated the effect of ACE inhibition by lisinopril on liver regeneration after partial hepatectomy. Adult male Wistar rats underwent 70% partial hepatectomy (PH). The animals received lisinopril at a dose of 1 mg kg body weight-1 day-1, or saline solution, intraperitoneally, for 5 days before hepatectomy, and daily after surgery. Four to six animals from the lisinopril and saline groups were sacrificed at 12, 24, 36, 48, 72, and 120 h after PH. Liver...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Angiotensin-converting enzyme inhibitors; Lisinopril; Bradykinin; Liver regeneration; Cell proliferation; Hepatocyte.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000100016

Animal bited and humane rabies surveillance in Iran
Provedor de dados: 195
Autores: Shirzadi, M. R.
Surveillance system of human rabies in Iran is working with the aim of having no human rabies and 100% access to health services for all the community. Further more, cooperation with veterinary organization and environment protection organization about vaccination of dogs and cats, sampling of suspicious animals and also training the staff and community and attending rabies national committee meetings is performing during the year. Iran has 31 provinces and 386 districts with a different weather condition as Mediterranean weather in the north of Iran and hot and dry weather in the south. As a result the dominant carnivores in the north and North West of Iran are wolves and in other areas of the country it’s fox. However, in the whole country jackals are...
Tipo: Info:eu-repo/semantics/article
Ano: 2013
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3184

Animal board invited review: OneARK: Strengthening the links between animal production science and animal ecology
Provedor de dados: 5
Autores: Destoumieux-garzón, Delphine; Bonnet, P.; Teplitsky, C.; Criscuolo, F.; Henry, P.-y.; Mazurais, David; Prunet, P.; Salvat, Gilles; Usseglio-polatera, P.; Verrier, E.; Friggens, N.c.
Wild and farmed animals are key elements of natural and managed ecosystems that deliver functions such as pollination, pest control and nutrient cycling within the broader roles they play in contributing to biodiversity and to every category of ecosystem services. They are subjected to global changes with a profound impact on the natural range and viability of animal species, the emergence and spatial distribution of pathogens, land use, ecosystem services and farming sustainability. We urgently need to improve our understanding of how animal populations can respond adaptively and therefore sustainably to these new selective pressures. In this context, we explored the common points between animal production science and animal ecology to identify promising...
Tipo: Text
Palavras-chave: Adaptation; Agroecosystem; Livestock sustainability; Resilience; Zoonotic disease.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00663/77509/79273.pdf

Animal breeding in organic farming:Discussion paper
Provedor de dados: 21
Autores: Nauta, Wytze; Baars, Nauta; Groen, Ab; Veerkamp, Roel; Roep, Dirk.
It is uncertain whether animals which have been bred for conventional production are capable of optimum performance in organic conditions. In conventional agriculture there is a movement towards maximum control of production conditions in order to optimise animals' yield in intensive production systems. By contrast, organic agriculture is based on natural processes and closed cycles, and takes into account the underlying connections between production factors. Following organic ideology, production capacity should be curtailed by acting in accordance with guiding principles such as naturalness, animal welfare, efficient use of fossil fuels in the farm cycle, and agri-biodiversity (IFOAM, 1994). Organic production should be tied to the land, with farms...
Tipo: Report
Palavras-chave: Breeding and genetics.
Ano: 2001
URL: http://orgprints.org/4824/1/4824.pdf

Animal Disease and the Industrialization of Agriculture
Provedor de dados: 31
Autores: Hennessy,   David A.; Wang,   Tong.
The industrialization of animal agriculture has fundamentally transformed animal health markets while animal health innovations have promoted this industrialization. The subtlety of these interactions shows how little we know about agricultural industrialization. To illustrate, we consider three stylized features of industrialized animal agriculture. These are the closing off of production activities from external effects, emphasis on control, and use of biosecurity measures. We find that animal disease externalities should lead to higher stocking on any given farm, and also to deficient entry into animal production. Eradicating the disease in a region increases both the stocking rate per farm and the number of farms. We show that antibiotics as a control...
Tipo: Working or Discussion Paper
Palavras-chave: Animal disease; Biosecurity; Biotechnology; Competitiveness; Confined animal agriculture; Economies of scale; Tragedy of the commons; Veterinary inputs.; Agricultural and Food Policy; Livestock Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2010
URL: http://purl.umn.edu/93673

Animal Disease Economics: The Case of Ovine Johne’s Disease in New South Wales
Provedor de dados: 31
Autores: Webster,   Stewart; Mullen,   John D.
Increased surveillance over the last three years has found that the prevalence of ovine Johne’s disease (OJD) in Australia is greater than previously believed. Trading restrictions and recent stock movement controls have added to the productivity losses of OJD affected producers in an attempt to minimise further spread of the disease while scientific data to support long term policy decisions is obtained through the National OJD Control and Evaluation Program. The literature on the economics of OJD in Australia is reviewed and a framework for further work in this area developed. Directions for economic research within the National Program are then presented.
Tipo: Presentation
Palavras-chave: Livestock Production/Industries.
Ano: 2000
URL: http://purl.umn.edu/123737

Animal emergence during Snowball Earths by thermosynthesis in submarine hydrothermal vents
Provedor de dados: 17
Autores: Anthonie W. J. Muller.
Darwin already commented on the lateness in the fossil record of the emergence of the animals, calling it a valid argument against his theory of evolution^1^. This emergence of the animals (metazoans: multicellular animals) has therefore attracted much attention^2-5^. Two decades ago it was reported that extensive global glaciations (Snowball Earths) preceded the emergence^6-7^. Here we causally relate the emergence and the glaciations by invoking benthic sessile^8-11^ thermosynthesizing^12-13^ protists that gained free energy as ATP while oscillating in the thermal gradient between a submarine hydrothermal vent^14^ and the ice-covered ocean. During a global glaciation their size increased from microscopic to macroscopic due to the selective advantage of a...
Tipo: Manuscript
Palavras-chave: Developmental Biology; Evolutionary Biology.
Ano: 2009
URL: http://precedings.nature.com/documents/3333/version/2

Animal emergence during Snowball Earths by thermosynthesis in submarine hydrothermal vents
Provedor de dados: 17
Autores: Anthonie W. J. Muller.
Darwin already commented on the lateness in the fossil record of the emergence of the animals, calling it a valid argument against his theory of evolution^1^. This emergence of the animals (metazoans: multicellular animals) has therefore attracted much attention^2-5^. Two decades ago it was reported that extensive global glaciations (Snowball Earths) preceded the emergence^6-7^. Here we causally relate the emergence and the glaciations by invoking benthic sessile^8-11^ thermosynthesizing^12-13^ protists that gained free energy as ATP while oscillating in the thermal gradient between a submarine hydrothermal vent^14^ and the ice-covered ocean. During a global glaciation their size increased from microscopic to macroscopic due to the selective advantage of a...
Tipo: Manuscript
Palavras-chave: Developmental Biology; Evolutionary Biology.
Ano: 2009
URL: http://precedings.nature.com/documents/3333/version/1

ANIMAL HEALTH AND THE ROLE OF COMMUNITIES: AN EXAMPLE OF TRYPANASOMOSIS CONTROL OPTIONS IN UGANDA
Provedor de dados: 31
Autores: McCarthy,   Nancy; McDermott,   John; Coleman,   Paul.
In many African countries, governments are re-thinking the role of the state in centrally providing certain goods and services. The rights and responsibilities for providing various public goods are being decentralized to lower levels of government administration, and/or being devolved directly to local citizens or user groups themselves. It is thus critical to ask: under what circumstances will local groups provide the socially optimal level of the public good? In this paper, we apply this question to the case of controlling an important vector-borne livestock disease in Uganda, trypanosomosis, which is transmitted by the tsetse fly. We investigate the underlying epidemiology of transmission and different options for control, and the implications for...
Tipo: Working or Discussion Paper
Palavras-chave: Public Goods; Collective Action; Vector-Borne Disease; Livestock Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/16114

Animal health and welfare in organic livestock production in Europe– current state and future challenges
Provedor de dados: 21
Autores: Hovi, Malla; Sundrum, Albert; Thamsborg, M.S.
Existing data on animal health and welfare in organic livestock production systems in the European Community countries are reviewed in the light of the demands and challenges of the recently implemented EU regulation on organic livestock production. The main conclusions and recommendations of a three-year networking project on  organic livestock production are summarised and the future challenges to organic livestock production in terms of welfare and health management are discussed. The authors conclude that, whilst the available data are limited and the implementation of the EC regulation is relatively recent, there is little evidence to suggest that organic livestock management causes major threats to animal health and welfare in comparison with...
Tipo: Journal paper
Palavras-chave: Health and welfare.
Ano: 2003
URL: http://orgprints.org/954/1/handbuch%2Dkein%2DDokument.pdf

Animal health and welfare in organic livestock sysytems identification of constraints and priorities OF0172
Provedor de dados: 21
Autores: Unspecified,.
Policy recommendations  1. There should be careful consideration of organic standards generally, and the new EU organic livestock production standards specifically, with regard to animal health and welfare, with a greater emphasis on disease control and eradication on a herd basis.   2. There are increasingly more alternative health products being introduced into the organic livestock sector. The sector bodies should respond by monitoring and evaluating these and provide producer recommendations so as to safeguard animal welfare, producers and consumers.      3. It is recommended that, before and during conversion, a written protocol be drawn-up for each individual farm, and should focus on known farm health problems.  4. The organic standards should...
Tipo: Report
Palavras-chave: Education; Extension and communication Health and welfare.
Ano: 1999
URL: http://orgprints.org/9964/2/animal_health_welfare_OF0172.pdf

Animal models and biologics evaluation: experimental rabies virus infection and dose titration of CL184 monoclonal antibody combination in the Syrian hamster
Provedor de dados: 195
Autores: Taylor, S. T.; Ellison, J. A.; Franka, R.; Marissen, W. E.; Rupprecht, C.
Rabies is an acute progressive encephalitis responsible for over 55,000 human fatalities each year. This zoonosis is preventable, if prompt medical intervention includes wound care and both active and passive immunization. Approximately 10 million people receive rabies post-exposure prophylaxis (PEP) annually. The World Health Organization recommends the administration of human and/or equine derived antirabies immune globulin (HRIG and ERIG) as well as cell culture vaccine for modern PEP in humans. However, in many developing regions where canine rabies is enzootic, alternative solutions for passive immunization are necessary due to the cost prohibitive, limited supply of HRIG and ERIG. Such disparities have prompted the development of anti-RABV monoclonal...
Tipo: Info:eu-repo/semantics/article
Ano: 2013
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/246

Animal models in biological and biomedical research - experimental and ethical concerns
Provedor de dados: 42
Autores: ANDERSEN,MONICA L.; WINTER,LUCILE M.F.
ABSTRACT Animal models have been used in experimental research to increase human knowledge and contribute to finding solutions to biological and biomedical questions. However, increased concern for the welfare of the animals used, and a growing awareness of the concept of animal rights, has brought a greater focus on the related ethical issues. In this review, we intend to give examples on how animals are used in the health research related to some major health problems in Brazil, as well as to stimulate discussion about the application of ethics in the use of animals in research and education, highlighting the role of National Council for the Control of Animal Experimentation (Conselho Nacional de Controle de Experimentação Animal - CONCEA) in these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal use; Biology; Ethics; Research.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000200701

Animal Models of Nutritional Induction of Type 2 Diabetes Mellitus
Provedor de dados: 77
Autores: Barbosa-da-Silva,Sandra; Sarmento,Isabele Bringhenti; Bargut,Thereza C. Lonzetti; Souza-Mello,Vanessa; Aguila,Marcia Barbosa; Mandarim-de-Lacerda,Carlos A.
Type 2 diabetes mellitus (DM2) is the most common chronic metabolic disease, affecting approximately 6% of the adult population in the Western world. This condition is a major cause of cardiovascular disease, blindness, renal failure, and amputations, with increasing prevalence worldwide. The inuence of obesity on type 2 diabetes risk is determined by the degree of obesity and by body fat localization, with insulin resistance (IR) being the main link between these metabolic diseases. Experimental studies have shown that dietary factors, and particularly lipids, are strongly positively associated with body mass (BM) gain; IR; and, consequently, type 2 diabetes. Similarly, excessive consumption of energy-dense carbohydrate-rich foods can trigger the onset of...
Tipo: Journal article
Palavras-chave: Animal models; Nutritional induction; Metabolic disease; Type 2 diabetes mellitus.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100046

Animal performance and carcass characteristics from confined lambs fed on concentrate feed and additives
Provedor de dados: 42
Autores: Prado,Tayrone F.; França,Aldi F.S.; Meirinhos,Maria Lúcia G.; Peron,Hugo J.M.C.; Ferreira,Reginaldo N.; Oliveira,Leonardo G.; Corrêa,Daniel S.
ABSTRACT  The number of sheep flocks in Brazil is increasing. It is known that lambs must be slaughtered when young for producing quality meat. The current study evaluated the inclusion of protected methionine, protected lysine, lysophospholipid and amylolytic enzymes in a diet to lambs and their effects on weight gain and quantitative carcass traits at slaughtering. Eighty non-castrated male crossbred Dorper x Santa Inês lambs, 20.57 ± 4.33 kg live weight, were used. The feedlot lasted 64 days and 60 animals were slaughtered. There were no differences for live weight, daily feed intake, feed conversion and average daily weight gain at the first 28 days of feedlot. From the 28th day lysophospholipid treatment presented the highest live weight....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amylolytic enzyme; Lysine; Lysophospholipid; Methionine; Ovine.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502255

Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights
Provedor de dados: 96
Autores: Pazdiora,Raul Dirceu; Resende,Flávio Dutra de; Faria,Marcelo Henrique de; Siqueira,Gustavo Rezende; Almeida,Geraldo Benedito de Souza; Sampaio,Ricardo Linhares; Pacheco,Paulo Santana; Prietto,Murilo Sergio Rodrigues.
The objective of this study was to evaluate animal performance and carcass characteristics of 64 Nellore young bulls at 22 months of age finished in a feedlot and slaughtered at five body weights (350; 455; 485; 555 and 580 kg) fed diets containing coated or uncoated urea. The experimental design adopted was completely randomized, set in a 4 × 2 factorial arrangement, and for the variables assessed in the control animals, it was 5 × 2. No effect of interaction between slaughter weights and diets were observed, so the variables were analyzed separately, compared by polynomial contrasts and by the F test, respectively. The time animals remained in the feedlot to reach slaughter weights was 66, 88, 145 and 194 days. Average daily gain (ADG) showed quadratic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body composition; Fat thickness; Feed efficiency; Feedlot; Gain yield; High grain rations.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000400007

Animal performance and nutrient digestibility of feedlot steers fed a diet supplemented with a mixture of direct-fed microbials and digestive enzymes
Provedor de dados: 96
Autores: Encinas,Christian Michael Alvarez; Villalobos,Guillermo Villalobos; Viveros,Joel Domínguez; Flores,Gabriela Corral; Almora,Enrique Alvarez; Rangel,Francisco Castillo.
ABSTRACT The objective of this study was to evaluate the effect of a mixture of direct-fed microbials (DFM), yeast, and digestive enzymes on animal performance in feedlot cattle, as well as digestibility when finishing feedlot cattle. Thirty crossbreed (Charolais × Beefmaster) steers averaging 15 months old and 321.83±3.73 kg of initial body weight were used. Animals were randomly assigned to one of two treatment groups: control (basal diet) and a mixture of DFM, yeast, and digestive enzymes (basal diet + 30 g of the mixture). Each group contained fifteen experimental units. Animals were fed individually twice a day, and dry matter intake (DMI) was recorded daily. Body weights were recorded initially and subsequently at 28-day intervals for a total of 140...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enzymes; Finishing; Probiotics; Saccharomyces cerevisiae; Yeast.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100615

Animal welfare concepts and strategy for poultry production: a review
Provedor de dados: 89
Autores: Moura,DJ; Nääs,IA; Pereira,DF; Silva,RBTR; Camargo,GA.
Well being of animals had been historically a public concern, since the beginning of human kind history. As world's population grows there is a need for food including meat. In the last decades there has been a great improvement in poultry production based on the careful control of several aspects, among which nutrition and management (environment, health and rearing systems). Nowadays, the search for good welfare conditions is a global tendency in animal production; however issues surrounding farm animal welfare or well-being, such as definitions, measurements, interpretation, and perception, continue to be controversial. It is known that the result of a broiler not adequately housed is a direct loss in production which leads towards a thought that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bird welfare; Housing; Behavioral pattern; Welfare assessment.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300001

Animal welfare in organic egg production - Emphasis on Mortality and Helminth Infections
Provedor de dados: 21
Autores: Hinrichsen, Lena Karina.
The consumers’ motivation to buy organic products includes animal welfare aspects, and even though the retail market share for organic eggs in Denmark is relative high, there are a number of welfare issues in the organic egg production compared to other production systems, like higher mortality and prevalence of helminth infections, that are not in agreement with the consumers’ expectation.  The aim of this PhD study was to investigate animal welfare in organic egg production in Denmark, with emphasis on mortality and helminth infections. The specific hypothesis in the PhD study were i) helminth infections (Ascaridia galli and Heterakis sp.) increase the mortality rate at peak of lay (observational event study, Paper I), ii) helminth infections (Ascaridia...
Tipo: Thesis
Palavras-chave: Health and welfare.
Ano: 2015
URL: http://orgprints.org/28857/7/28857.pdf

Animal-assisted interventions: General considerations
Provedor de dados: 195
Autores: Squilasse, Aline Fernanda; Squilasse Junior, Fernando Tadeu.
The aim of this research is to verify in the literature if the application of animal-assisted interventions (AAI) can be beneficial to those involved. It was verified that these studies are still incipient, but that the area has been growing significantly and more robust studies are being published. There is strong evidence on consulted materials on AAI benefits in the most diverse scenarios, from children to the elderly, without any group distinction. This theoretical essay is characterized by a literature revision. Inclusion and exclusion criteria, as well as their descriptors, have been defined and used to ensure the content of the consulted materials. Finally, it is proposed that new studies with more stringent methodological criteria, larger samples,...
Tipo: Info:eu-repo/semantics/article
Ano: 2018
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37778

Animal-assisted interventions: General considerations
Provedor de dados: 195
Autores: Squilasse, Aline Fernanda; Squilasse Junior, Fernando Tadeu.
The aim of this research is to verify in the literature if the application of animal-assisted interventions (AAI) can be beneficial to those involved. It was verified that these studies are still incipient, but that the area has been growing significantly and more robust studies are being published. There is strong evidence on consulted materials on AAI benefits in the most diverse scenarios, from children to the elderly, without any group distinction. This theoretical essay is characterized by a literature revision. Inclusion and exclusion criteria, as well as their descriptors, have been defined and used to ensure the content of the consulted materials. Finally, it is proposed that new studies with more stringent methodological criteria, larger samples,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cinotherapy; Human-animal relationship; Assisted therapy cinoterapia; Relação homem-animal; Terapia assistida.
Ano: 2018
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37778

Animal-based agriculture, phosphorus management and water quality in Brazil: options for the future
Provedor de dados: 63
Autores: Shigaki,Francirose; Sharpley,Andrew; Prochnow,Luís Ignácio.
Eutrophication has become a major threat to water quality in the U.S., Europe, and Australasia. In most cases, freshwater eutrophication is accelerated by increased inputs of phosphorus (P), of which agricultural runoff is now a major contributor, due to intensification of crop and animal production systems since the early 1990s'. Once little information is available on the impacts of Brazilian agriculture in water quality, recent changes in crop and animal production systems in Brazil were evaluated in the context of probable implications of the fate of P in agriculture. Between 1993 and 2003, there was 33% increase in the number of housed animals (i.e., beef, dairy cows, swine, and poultry), most in the South Region (i.e., Paraná, Rio Grande do Sul, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diffuse pollution; Eutrophication; Poultry production; Swine production; Surface runoff.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000200013

Animal-friendly production systems may cause re-emergence of Toxoplasma gondii
Provedor de dados: 21
Autores: Kijlstra, Prof A; Meerburg, Dr BG; Mul, MSc MF.
Toxoplasmosis is still one of the most common parasitic infections in the world, although in Europe improvements in hygiene and the introduction of ‘total’ indoor farming in livestock production have rapidly diminished the problem during the past decades. As a result of public dislike, however, introduction of alternative and more acceptable animal-friendly livestock production systems including outdoor access are gaining ground. Potentially these systems can lead to increased prevalence of certain zoonotic diseases, including Toxoplasmosis. To retain prevalence of this disease in humans at current  levels, emphasis should be on disease control at farm-level. This article provides an analysis of various risk factors for farm animals to get infected with...
Tipo: Journal paper
Palavras-chave: Pigs; Health and welfare.
Ano: 2004
URL: http://orgprints.org/10059/1/67.pdf

Animals’ Health Control Efficiency in Northwest Portugal: A Two-stage DEA Approach
Provedor de dados: 31
Autores: Costa,   Leonardo; Oude Lansink,   Alfons G.J.M.; Silva,   Elvira.
A two-stage approach is employed to analyze the efficiency of cooperatives responsible for ruminants’ disease control (OPP) at the farm level in Northwest Portugal. In the first stage, Data Envelopment Analysis (DEA) is used to estimate and decompose input-based overall inefficiency for each OPP. The input-based inefficiency measures are generated using the directional input distance function. In the second stage, the inefficiency estimates are regressed on environmental and organizational factors in order to explain efficiency differentials. Despite substantial environmental differences, the empirical results indicate that most cooperatives can reduce costs by improving scale efficiency and pure technical efficiency.
Tipo: Conference Paper or Presentation
Palavras-chave: Input directional distance function; Bootstrapping; Economic efficiency; Animal health services.; Agricultural and Food Policy.
Ano: 2009
URL: http://purl.umn.edu/58000

Anishinaabe Adaptation to Environmental Change in Northwestern Ontario: a Case Study in Knowledge Coproduction for Nontimber Forest Products
Provedor de dados: 7
Autores: Davidson-Hunt, Iain J; Natural Resources Institute, University of Manitoba; Iain.Davidson-Hunt@umanitoba.ca; Pengelly, Ryan D.; HTFC Planning &amp; Design; rpengelly@htfc.mb.ca; Sylvester, Olivia; Natural Resources Institute, University of Manitoba; livsylvester@gmail.com.
Interaction, negotiation, and sharing knowledge are at the heart of indigenous response to global environmental change. We consider Anishinaabe efforts to devise new institutional arrangements in response to the process of colonialism and changing global markets. Our findings are based on collaborative research undertaken with Anishinaabe colleagues from Pikangikum First Nation, northwestern Ontario. We worked with elders to understand their knowledge, preferences, and opinions regarding appropriate institutional arrangements for the co-production of knowledge required to develop nontimber forest products. We began our research by asking about the values, institutions, and conditions that guide plant harvesting, and then the conditions necessary to...
Tipo: Peer-Reviewed Reports
Palavras-chave: Anishinaabe; Boreal forest; Canada; Coproduction of knowledge; Global environmental change.
Ano: 2013

Annona crassiflora Mart. (Annonaceae): effect of crude extract of seeds on larvae of soybean looper Chrysodeixis includens (Lepidoptera: Noctuidae)
Provedor de dados: 53
Autores: Massarolli,Angélica; Pereira,Mônica Josene Barbosa; Foerster,Luis Amilton.
ABSTRACT The effect of a crude extract of Annona crassiflora was evaluated on larvae of the soybean looper, Chrysodeixis includens (Lepidoptera: Noctuidae) in different stages of larval development. The extract was prepared with seeds of A. crassiflora fruits collected in the state of Mato Grosso, Brazil. The extract was diluted in water and solubilizer agent at the concentrations of 0.5, 1.0, 2.0, 4.0, and 8.0%; it was tested by ingestion of treated leaves and contact. The mortality rate of topically treated caterpillars of first, third, and fifth instars was significantly higher than that of the control group. For first instar caterpillars, mortality was observed within the first 24 h after application, while, for the remaining instars, it was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Araticum; Bioinsecticide; Marôlo; Phytoinsecticide.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000300398

ANNUAL GRASSES CONTROL WITH TOPRAMEZONE IN MIXTURE WITH ALS-INHIBITING HERBICIDES
Provedor de dados: 87
Autores: DAMALAS,C. A.; GITSOPOULOS,T. K.; KOUTROUBAS,S.D.; GEORGOULAS,I.
ABSTRACTPanicoid grasses are major weeds of maize and sugarcane as well as of several other important grains, including sorghum, pearl millet, and foxtail millet. Pot trials were conducted to study the activity and potential interactions of topramezone in mixture with recommended rates of rimsulfuron or nicosulfuron on three annual panicoid grasses (i.e. Echinochloa oryzoides,E.phyllopogon, and Panicum miliaceum). Target weeds were treated at the four- to five-leaf growth stage. On the basis of fresh weight reduction, topramezone alone provided 78% control of E.oryzoides, 68% control of E.phyllopogon, and 99% control of P.miliaceum. Topramezone plus rimsulfuron or nicosulfuron provided decreased control of both Echinochloa spp. compared with topramezone...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Efficacy; Nicosulfuron; Mixtures; Rimsulfuron.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300509

Annual nitrate drawdown observed by SOCCOM profiling floats and the relationship to annual net community production
Provedor de dados: 5
Autores: Johnson, Kenneth S.; Plant, Joshua N.; Dunne, John P.; Talley, Lynne D.; Sarmiento, Jorge L.
Annual nitrate cycles have been measured throughout the pelagic waters of the Southern Ocean, including regions with seasonal ice cover and southern hemisphere subtropical zones. Vertically resolved nitrate measurements were made using in situ ultraviolet spectrophotometer (ISUS) and submersible ultraviolet nitrate analyzer (SUNA) optical nitrate sensors deployed on profiling floats. Thirty-one floats returned 40 complete annual cycles. The mean nitrate profile from the month with the highest winter nitrate minus the mean profile from the month with the lowest nitrate yields the annual nitrate drawdown. This quantity was integrated to 200 m depth and converted to carbon using the Redfield ratio to estimate annual net community production (ANCP) throughout...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00662/77397/78994.pdf

Annual production of grass silage for biogas: effects of fibrolytic enzyme additives on ensilage efficiency and specific methane yields
Provedor de dados: 111
Autores: Nolan, Pearl; Doyle, Evelyn; O'Kiley, Padraig.
The aims of this study were to quantify the effects of fibrolytic enzyme additives applied to each of four consecutive cuts of unwilted grass at ensiling on ensilage characteristics and specific CH4 yields (SMY) per unit mass and per unit land area. In light of the importance of the primary growth yield, the effects of the timing of Cut 1 were also investigated. Furthermore, the mass-SMY and area-SMY effect of any effluent produced during ensilage was determined.At each of four cuts that comprised annual growth, samples from four replicate plots of Lolium perenne and of Phleum pratense were untreated (control) or were treated with either of two fibrolytic enzymes (ENZ 1 and ENZ 2) prior to ensiling for 120 days. The mass-SMY of silages and effluents were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Grass yield; Silage; Fibre; Enzymes; Effluent; CH4 yield per unit land area.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4159

Annual report 2003 LBI organic fruit growing research: including plans for 2004
Provedor de dados: 21
Autores: Jansonius, PieterJans; Zanen, Marleen; Bloksma, Joke.
Our objectives in soil management research combine a number of issues: soil fertility, production, fruit quality, growth regulation, prevention of night frost damage, leaf decomposition (scab) and practical feasibility. This will result in different regimes of weed control, fertilisation, foliar feeding and watering for each plot. The evaluation criteria remain particularly difficult to assess. The proposed revised edition of the soil book (LF39) is combined with the final publication of the regulation project which appeared in de winter of 2003 as a hand-book “Biologische Appels en Peren – teeltmaatregelen voor kwaliteitsfruit-” (Organic apples and pears – cultivation  measures for quality fruit) (LF75, ed. Joke Bloksma).    Time after time our research...
Tipo: Report
Palavras-chave: Fruit and berries.
Ano: 2004
URL: http://orgprints.org/2950/1/lf78.pdf

Annual report of consultancy, 1984.
Provedor de dados: 14
Autores: SHARMA, P. N.
Organization of Report: research strategy for the improvement of land and water resources of the Semi-Arid Tropics of Northeast Brazil; runoff inducement for agriculture in very Arid Zones of the Northeast Brazil; water production function of sorghum for NE Brazil; optimization of small reservoir systems for NE Brazil; seepage control; miscellaneous activities.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Consultoria; Relatorio; Regiao semi-arida; Management; Consultancy report; Northeast; Água; Manejo; Solo; Brazil; Soil; Water.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133186

Annual research report on corn disease in 1980
Provedor de dados: 106
Autores: Somkiat Titatarn; Diloke Unchalisangkas; Weera Chamkrachang; Niyom Chew-Chin.
2 tables
Palavras-chave: Corn; Maize; Downy mildew; Plant diseases; Chemical control; Varieties; Disease resistance; ข้าวโพด; โรคพืช; การควบคุมด้วยสารเคมี; พันธุ์ต้านทาน.
Ano: 1980
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4019

Annual self-reseeding legumes and their application into mediterranean cropping systems.
Provedor de dados: 21
Autores: Driouech, Noureddin.
Soil fertility management is a major concern in organic farming. According to the EEC Regulation 2092/91, soil fertility must be maintained and/or increased by legumes cultivation. Native Mediterranean legumes ecotypes are more persistent than commercial varieties but their use in catch crop sequences is still limited. The N2-fixing legumes crops as a local resource can be considered as an alternative to improve nitrogen nutrition and to increase crop yields. This study aimed to investigate the agronomic performance of seven annual self-reseeding legumes and the short–term effect of nitrogen supply on the subsequent crops. Results are presented from field experiment on sandy-clay soil, pH 8.1 and 1.6% of organic matter, in the south of Italy, where the...
Tipo: Thesis
Palavras-chave: Pasture and forage crops; Production systems; Vegetables; Crop husbandry; Soil quality.
Ano: 2008
URL: http://orgprints.org/13838/1/PhD_thesis_legumes_Noureddin_Driouech.pdf

Annual self-reseeding legumes and their application into Mediterranean Organic cropping systems
Provedor de dados: 21
Autores: Driouech, Noureddin.
Self-reseeding winter annual legumes are an essential component of the Mediterranean natural resources. This study aimed to investigate self-establishment potential, ability of biological nitrogen fixation (BNF), of seven annual self-reseeding legumes and their short–term pre-crop effect on succeeding zucchini and lettuce crops. Results are presented from field experiment in Apulia region, South of Italy, where the self-reseeding legumes were screened during two cropping cycles.  For the first cropping cycle (2005-2006) preliminary results suggested that Trifolium spp. performed better than Medicago spp. Among the seven species, five were more suitable to the site’s conditions.  T. angustifolium and M. polymorpha gave the best results. T. angustifolium...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions; Farm nutrient management.
Ano: 2010
URL: http://orgprints.org/17465/1/Driouech_M%2D1795_legumes_Italy.pdf

Annual self-reseeding legumes effect on subsequent crops into a rotation program in Mediterranean organic farming systems
Provedor de dados: 21
Autores: Al-Bitar, Lina; Wehbé, Elias; Ayoub, Mohamed; Jamea, Mostafa.
Biological Nitrogen fixation (BNF) should be the most important means for N supply in organic agriculture. This study aimed at assessing the effect of fifteen legume cultivars on subsequent crops in three consecutive growing seasons to identify the most efficient and suitable ones as building crops in rotation programs under Mediterranean environment. T. subterraneum cv. York and T. glanduliferum cv. Prima, induced the best effects on wheat, particularly on total biomass, number of grains, dry matter production and increased yield by 670% and 567% respectively more than the control.
Tipo: Conference paper, poster, etc.
Palavras-chave: Pasture and forage crops Cereals; Pulses and oilseeds.
Ano: 2008
URL: http://orgprints.org/12270/1/Albitar_12270_ed.doc

Anpassung des Kontrollverfahrens nach der EG-Öko-Verordnung an die Anforderungen der Kontrollverordnung
Provedor de dados: 21
Autores: Neuendorff, Jochen.
Seit dem 1. Januar 2009 gelten die neuen EG-Rechtsregelungen zum Ökologischen Landbau. Diese lösten die seit 1991 geltende EG-Öko-Verordnung ab. In den Neuregelungen ist niedergelegt, dass das Kontrollsystem für Erzeugnisse des Ökologischen Landbaus im Einklang mit den Bestimmungen der Verordnung Nr. 882/2004 umgesetzt werden soll. Diese Regelung beeinflusst die Effektivität und die Effizienz des Kontrollsystems.  Im Rahmen des Vorhabens wurde das Rechtsverhältnis zwischen den EG-Rechtsvorschriften zum Ökologischen Landbau analysiert und dargestellt.  Es wurden Vorschläge für Vorrangregelungen entwickelt, die in Kommissionsverordnungen mit Durchführungsbestimmungen Berücksichtigung finden können.  Weiterhin wurden nationale Umsetzungsvorschläge erarbeitet....
Tipo: Report
Palavras-chave: Regulation.
Ano: 2009
URL: http://orgprints.org/16029/1/06OE143%2D06OE143%2DGfRS%2Dneuendorff%2D2009%2Dkontrollverfahren.pdf

Antagonic effect of the inhibition of inducible nitric oxide on the mortality of mice acutely infected with Escherichia coli and Bacteroides fragilis
Provedor de dados: 56
Autores: Astolfi,R.S.; Khouri,D.G.; Brandizzi,L.I.V.; Ávila-Campos,M.J.; Andrade Jr.,H.F. de.
Sepsis, the leading cause of death in intensive care units, is associated with overproduction of nitric oxide (NO) due to inducible NO synthase (iNOS), responsible for some of the pathologic changes. Aminoguanidine (AG) is a selective iNOS inhibitor with reported inconsistent actions in sepsis. To investigate the influence of iNOS, we studied models of acute bacterial sepsis using acute challenges with aerobic (Escherichia coli) and anaerobic (Bacteroides fragilis) bacteria in the presence of AG. Six-week-old, 23 g, male and female BALB/c and C57Bl/6j mice, in equal proportions, were inoculated (ip) with bacteria in groups of 4 animals for each dose and each experiment in the absence or presence of AG (50 mg/kg, ip, starting 24 h before challenge and daily...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Nitric oxide; Sepsis; Experimental model; Bacterial infections; Escherichia coli; Bacteroides fragilis.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000300006

Antagonism and modes of action of Chaetomium globosum species group, potential biocontrol agent of barley foliar diseases
Provedor de dados: 51
Autores: Moya,Paulina; Pedemonte,Debora; Amengual,Susana; Franco,Mario E. E; Sisterna,Marina N.
"Net blotch" (Drechslera teres) and "Bipolaris spot blotch" (Bipolaris sorokiniana) are foliar diseases of barley. Biological control is currently considered as an efficient alternative to chemical management of these plant diseases. The aim of the present study was to identify 2 isolates of Chaetomium (C2 and C5), endophytics on barley seedlings and to study the in vitro interactions with D. teres and B. sorokiniana, isolated from seeds of the same host. Cultural and morphological characterization of all microorganisms was done. In addition, molecular characterization of Chaetomium spp. was conducted and dual culture tests were carried out to find, by microscopic observations, the effects of the antagonist on the morphology of the pathogens. The results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bipolaris sorokiniana; Chaetomium globosum; Drechslera teres; Antibiosis; Endophyte; Mycoparasitism.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722016000400001

ANTAGONISM IS THE PREDOMINANT EFFECT OF HERBICIDE MIXTURES USED FOR IMIDAZOLINONE-RESISTANT BARNYARDGRASS (Echinochloa crus-galli) CONTROL
Provedor de dados: 87
Autores: MATZENBACHER,F. O.; KALSING,A.; DALAZEN,G.; MARKUS,C.; MEROTTO JR,A.
ABSTRACTHerbicides mixtures are used in many situations without the adequate knowledge related with the effect on major target weeds. The objective of this study was to evaluate the effects of different herbicides mixtures used in irrigated rice in order to establish the adequate combinations for the prevention and management of herbicide resistance in barnyardgrass (Echinochloa crus-galli). Three experiments were performed at field conditions with all major post-emergent herbicides used in irrigated rice in Brazil. The first experiment was performed with barnyardgrass resistant to imidazolinone herbicides and herbicides applied at label rates. The second and third experiments were performed with barnyardgrass resistant and susceptible to imidazolinone...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ALS inhibitors; Irrigated rice; Interaction; Synergism.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300587

Antagonism of Aspergillus terreus to Sclerotinia sclerotiorum
Provedor de dados: 58
Autores: Melo,Itamar S.; Faull,Jane L.; Nascimento,Rosely S.
An Aspergillus terreus strain showed in vitro antagonistic activity against the plant pathogen Sclerotinia sclerotiorum (Lib.) de Bary. The interaction between A. terreus and sclerotia revealed that the mycoparasite sporulated abundantly on the sclerotial surface. Cell breakdown due to host cell wall disruption was observed in inner rind cells, by a scanning electron microscopy.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Mycoparasitism; Morphology.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400002

Antagonism of Bacillus spp. against Xanthomonas campestris pv. campestris
Provedor de dados: 52
Autores: Monteiro,Leila; Mariano,Rosa de Lima Ramos; Souto-Maior,Ana Maria.
The antagonism of eight Bacillus isolates was investigated against nine strains of Xanthomonas campestris pv. campestris (causal agent of crucifers black rot) to assess the role of lipopeptides in this process. Antimicrobial and hemolytic (surfactant) activity tests were performed in vitro using agar diffusion methods. Antibiosis and hemolysis were positive for four Bacillus isolates against all X. campestris pv. campestris strains. The correlation observed between antimicrobial and hemolytic activities indicated that lipopeptides were involved in the antibiosis mechanism of the studied antagonists. Fermentation studies were carried out with the isolates that showed highest antimicrobial and hemolytic activities, to follow up growth and production of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus; Biological control; Xanthomonas campestris pv. campestris; Crucifers black rot.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100004

Antagonism of morphine-induced central respiratory depression by donepezil in the anesthetized rabbit
Provedor de dados: 48
Autores: TSUJITA,MIKI; SAKURABA,SHIGEKI; KURIBAYASHI,JUNYA; HOSOKAWA,YUKI; HATORI,EIKI; OKADA,YASUMASA; KASHIWAGI,MASANORI; TAKEDA,JUNZO; KUWANA,SHUN-ICHI.
Morphine is often used in cancer pain and postoperative analgesic management but induces respiratory depression. Therefore, there is an ongoing search for drug candidates that can antagonize morphine-induced respiratory depression but have no effect on morphine-induced analgesia. Acetylcholine is an excitatory neurotransmitter in central respiratory control and physostigmine antagonizes morphine-induced respiratory depression. However, physostigmine has not been applied in clinical practice because it has a short action time, among other characteristics. We therefore asked whether donepezil (a long-acting acetylcholinesterase inhibitor used in the treatment of Alzheimer's disease) can antagonize morphine-induced respiratory depression. Using the...
Tipo: Journal article
Palavras-chave: Morphine; Donepezil; Rabbit; Respiratory depression; Alzheimer's disease; Cholinesterase inhibitor.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602007000400008

Antagonism of Serratia marcescens towards Phytophthora parasitica and its effects in promoting the growth of citrus
Provedor de dados: 58
Autores: Queiroz,Brigida Pimentel Villar de; Melo,Itamar Soares de.
Phytophthora parasitica causes serious widespread, and difficult-to-control root rots in warmer regions. This oomycete is one of the most important pathogen of citrus. This paper reports the biological control of the pathogen by a strain of Serratia marcescens R-35, isolated from citrus rhizosphere. In greenhouse trials, the bacterium suppressed more than 50% of the disease and promoted the plant growth.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Rhizobacteria; Plant growth promotion.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000400008

Antagonism of Trichoderma species on Cladosporium herbarum and their enzimatic characterization
Provedor de dados: 58
Autores: Barbosa,Maria Angélica G.; Rehn,Kurt Georg; Menezes,Maria; Mariano,Rosa de Lima R.
The verrucose caused by Cladosporium herbarum reduces production and quality of Passion fruit (Passiflora edulis Sims.), a largely consumed tropical fruit. This work aimed to investigate the antagonism of Trichoderma species (T. polysporum, T. koningii, T. viride and T. harzianum) against Cladosporium herbarum, and to study the production of extracellular hydrolytic enzymes by the pathogen and the antagonists. The results showed considerable antagonistic potential for the biocontrol of C. herbarum isolates by all Trichoderma species, except T. koningii. The most distinguished effect was observed for T. polysporum. In relation to the pattern of esterase obtained by electrophoresis in poliacrylamyde gel, the major activity presented by the isolates was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passion fruit; Biological control; Extracellular enzymes; Fungi.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000200005

Antagonism of Trichoderma spp. strains against pea ( Pisum sativum L.) Fusarium wilt caused by Fusarium oxysporum f. sp. pisi.
Provedor de dados: 109
Autores: Checa Coral,Oscar Eduardo; Toro Criollo,Maribel; Descanse Vallejo,Jesica.
Abstract The antagonistic effectiveness of native strains of Trichoderma spp. on Fusarium oxysporum f. sp. pisi. in vitro, greenhouse and field conditions, were evaluated. in vitro conditions, the antagonistic capacity of 12 strains of Trichoderma spp., C2, C7, C12 and C21 strains, exhibited a better behavior measured by the following variables: inhibition halo and mycelial growth. In greenhouse conditions, the four strains, which showed the best in vitro antagonistic behavior, were evaluated using a DIA experimental design with factorial arrangement for three factors, which corresponded to strain, concentration and dose. The results of this evaluation, showed that C12 and C21strains at doses of 20 mL, and at concentrations of 108 and 106 conidia.mL-1,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonistic capacity; Inhibition halo; Inoculum; In vitro; Field conditions; Greenhouse; Mycelial growth.
Ano: 2017
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000300442

Antagonism of yeasts to Xanthomonas campestris pv. campestris on cabbage phylloplane in field
Provedor de dados: 59
Autores: Assis,Sayonara M.P.; Mariano,Rosa L.R.; Michereff,Sami J.; Silva,Gil; Maranhão,Elizabeth A.A.
Twenty yeast isolates, obtained from cabbage phylloplane, were evaluated for antagonistic activity against Xanthomonas campestris pv. campestris, in field. Plants of cabbage cv. Midori were pulverized simultaneously with suspensions of antagonists and pathogen. After 10 days, plants were evaluated through percentage of foliar area with lesions. Percentage of disease severity reduction (DSR%) was also calculated. Yeast isolates LR32, LR42 and LR19 showed, respectively, 72, 75 and 79% of DSR. These antagonists were tested in seven different application periods in relation to pathogen inoculation (T1=4 d before; T2=simultaneously; T3=4 d after; T4=4 d before + simultaneously; T5=4 d after + simultaneously; T6=4 d before + 4 d after; T7=4 d before +...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Xanthomonas campestris pv. campestris; Cabbage; Biocontrol; Yeasts.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000300002

Antagonismo de aislamientos de Trichoderma spp. frente a Didymella bryoniae (Fuckel) Rehm
Provedor de dados: 100
Autores: Martínez,Benedicto; Pérez,Jesús; Infante,Danay; Duarte,Yanisia; Moreno,Martha.
El presente trabajo tuvo como objetivo determinar los modos de acción de aislamientos de Trichoderma spp. frente a Didymella bryoniae (Fuckel) Rehm, mediante la técnica de cultivo dual. Se evaluaron la competencia por el sustrato, el micoparasitismo y la antibiosis de aislamientos de Trichoderma asperellum Samuels (Ta.), Trichoderma harzianum Rifai (Th.) y Trichoderma sp. (T.). A partir de las 72 horas, todos los aislamientos presentaron efecto inhibitorio del crecimiento del patógeno superior al 50%. Los aislamientos Ta. 12, Ta. 79, Ta. 85 y T. 81 crecieron más del 75% del área de la placa, por lo que se ubicaron en la clase 1 de la escala de Bell. La velocidad de crecimiento de los dos últimos aislamientos aumentó a partir de las 72h, lo que pudiera...
Tipo: Journal article
Palavras-chave: Trichoderma asperellum; Trichoderma harzianum; Modos de acción; Gomosis; Cucurbitáceas.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522013000300005

Antagonismo de Bacillus spp. frente a hongos fitopatógenos del cultivo del arroz (Oryza sativa L.)
Provedor de dados: 100
Autores: Tejera,B; Heydrich,Mayra; Rojas,Marcia M.
El arroz es uno de los alimentos con mayor demanda en el mercado actual debido al gran número de personas que lo consumen. Una alternativa para dar solución a la aparición de enfermedades de origen fúngico es la utilización de bacterias como control biológico de hongos fitopatógenos. Dentro de estos microorganismos, los aislamientos del género Bacillus han sido uno de los más empleados en el control biológico, debido a que estos tienen la capacidad de producir una amplia diversidad de metabolitos con actividad antifúngica. En el presente trabajo se utilizaron siete aislados pertenecientes al género Bacillus para evaluar el efecto antagónico ejercido por estos microorganismos sobre dos hongos fitopatógenos del cultivo del arroz Curvularia sp. (Boed.) y...
Tipo: Journal article
Palavras-chave: Bacillus; Curvularia sp.; Pyricularia grisea.
Ano: 2012
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522012000200008

ANTAGONISMO DE CEPAS DE Pseudomonas fluorescens y Burkholderia cepacia CONTRA HONGOS FITOPATÓGENOS DEL ARROZ Y EL MAÍZ
Provedor de dados: 100
Autores: Trujillo,I; Díaz,Acela; Hernández,Annia; Heydrich,Mayra.
Las bacterias promotoras del crecimiento vegetal (PGPB) influyen de forma directa o indirecta en el desarrollo de los cultivos. Este trabajo tiene como objetivos determinar la actividad antagónica y el efecto inhibitorio de los metabolitos activos producidos por rizobacterias ante fitopatógenos que afectan a los cultivos del maíz y el arroz. Para ello se desarrollaron bioensayos in vitro en el medio King B. Se utilizaron cepas de referencia y autóctonas de Pseudomonas fluorescens y Burkholderia cepacia, previamente aisladas de la rizosfera del maíz variedad Francisco mejorado, para determinar sus potencialidades como antagonistas de los patógenos fúngicos Fusarium oxysporum, Alternaria alternata, Curvularia sp. y Fusarium sp. Los resultados mostraron que...
Tipo: Journal article
Palavras-chave: Pseudomonas fluorescens; Burkholderia cepacia; Antagonistas; Fitopatógenos.
Ano: 2007
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522007000100006

Antagonismo in vitro de cepas bacterianas frente a Macrophomina phaseolina Tassi (Goid)
Provedor de dados: 100
Autores: Cruz-Martín,Mileidy; Sánchez-García,Cynthia; Acosta-Suárez,Mayra; Leiva-Mora,Michel; Hernández Durán,Yosbel; Roque,Berkis; Alvarado-Capó,Yelenys.
Se evaluó el control in vitro de Burkholderia cepacia (cepa CCIBP-E-556), Serratia plymuthica (cepa ATCC 1270) y Bacillus subtilis (cepa ATCC 6051), sobre Macrophomina phaseolina (Tassi) Goid, utilizando el método de cultivo dual.Se midió el radio de la colonia del hongo y se determinó el porcentaje de inhibición del crecimiento radial. B. cepacia produjo el mayor efecto sobre el aislado de M. phaseolina, provocando un porcentaje de inhibición del 43,5%, y ocasionando cambios en la apariencia del micelio, que se observaron en la zona de inhibición con el uso del microscópico óptico. Por su parte, S. plymuthica y B. subtilis provocaron valores de inhibición del crecimiento micelial en M. phaseolina por debajo del 10%, lo que indica que dichas cepas no...
Tipo: Journal article
Palavras-chave: Actividad antifúngica; Biocontrol; Burkholderia cepacia; Serratia plymuthica; Bacillus subtilis; Frijol; Phaseolus vulgaris; Fitopatógeno.
Ano: 2014
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522014000100009

Antagonistas microbianos para el manejo de la pudrición negra del fruto en Theobroma cacao L: Estado actual y perspectivas de uso en Cuba
Provedor de dados: 100
Autores: Hernández-Rodríguez,Annia; Ruíz-Beltrán,Yeter; Acebo-Guerrero,Yanelis; Miguélez-Sierra,Yulien; Heydrich-Pérez,Mayra.
Este trabajo tuvo como objetivo valorar las perspectivas de empleo de antagonistas microbianos en el manejo integrado de la pudrición negra del fruto del cacao (Theobroma cacao L.), provocada por especies del género Phytophthora. Se resumen los principales componentes de manejo de la pudrición negra del fruto, tales como control químico, métodos culturales, resistencia genética y control biológico, profundizando en el uso y perspectivas de hongos y bacterias antagonistas. Los antagonistas microbianos constituyen una alternativa a utilizar dentro del manejo integrado del cultivo, ya que pueden mitigar los efectos deletéreos ocasionados por Phytophthora spp. Dentro de los principales mecanismos que utilizan estos antagonistas para su acción se encuentran:...
Tipo: Journal article
Palavras-chave: Antagonistas microbianos; Pudrición negra del fruto; Control biológico; Phytophthora spp.
Ano: 2014
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522014000100002

Antagonistic activity of Lactobacillus acidophilus LA10 against Salmonella enterica serovar Enteritidis SE86 in mice
Provedor de dados: 58
Autores: Scapin,Diane; Grando,Williani Fabiola; Rossi,Eliandra Mirlei; Perez,Karla Joseane; Malheiros,Patrícia da Silva; Tondo,Eduardo Cesar.
Salmonella enterica serovar Enteritidis is one of the main pathogens responsible for foodborne illness in Brazil. Probiotic bacteria can play a role in defense and recovery from enteropathogenic -infections. In this study, the ability of Lactobacillus acidophilus LA10 to colonise and exert anta-gonistic effects in the gastrointestinal tract was tested before and during experimental infection in conventional mice contaminated with S. Enteritidis (SE86). A dose of 0.1 mL containing 10(8) viable cells of SE86 and L. acidophilus LA10 was orally administered by gavage to mice. The experiment was divided into groups. As a negative control, Group 1 was administered only sterile saline solution. As a positive control, Group 2 was administered only SE86. Group 3...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: S. Enteritidis SE86; Probiotics; Mice; Lactobacillus acidophilus LA10.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100008

Antagonistic and protective effects against Salmonella enterica serovar typhimurium by Lactobacillus murinus in the digestive tract of gnotobiotic mice
Provedor de dados: 58
Autores: Vasconcelos,Ana Luiza Sampaio; Nicoli,Jacques Robert; Nardi,Regina Maria Drummond.
In the present study, production of antagonistic substances by Lactobacillus murinus against enteropathogenic bacteria was evaluated in vivo as well as a possible protective effect against an oral challenge with Salmonella Typhimurium using a gnotobiotic animal model. A higher mean survival time (P &lt; 0.05) was observed in L. murinus-associated animals (7.89 ± 3.83 days) when compared with the control ones (4.44 ± 0.73 days). Lactobacillus murinus exerted a potent antagonistic effect in vivo against S. sonnei and to a lesser extent against S. Typhimurium as revealed by inhibitory halos around the feces of Lactobacillus-associated animals. Diameters of inhibitory halos around intestinal contents increased along the intestine tract, following...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonism; Salmonella; Lactobacillus; Gnotobiotic mice.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500007

Antagonistic effect of chitin-degrading microfungi on thick-shelled pig helminth eggs
Provedor de dados: 21
Autores: Katakam, KIran Kumar; Thapa, Sundar; Meyling, Nicholai V.; Dalsgaard, Anders; Roepstorff, Allan; Thamsborg, Stig Milan.
The rising demand for pigs produced in organic farming systems, which require access to outdoor areas and associated increased risk of gastrointestinal nematode infections, is creating growing interest in alternative control strategies. Also development of anthelminthic resistance due to extensive use of anthelmintics is a concern in intensive pig production. Use of chitin-degrading microfungi is one of the options. Extensive research has been conducted on biological control of plant pathogenic nematodes using such fungi, and some fungal species are commercially available for plant protection. In contrast, there are only limited laboratory studies conducted on eggs from nematodes which are animal parasites. The aim of present study is to investigate the...
Tipo: Conference paper, poster, etc.
Palavras-chave: Health and welfare; Pigs.
Ano: 2011
URL: http://orgprints.org/20007/3/20007.pdf

Antagonistic rhizobacteria and jasmonic acid induce resistance against tomato bacterial spot
Provedor de dados: 53
Autores: Ferraz,Hélvio Gledson Maciel; Resende,Renata Sousa; Moreira,Poliana Coutinho; Silveira,Patrícia Ricardino; Milagres,Elisângela Aparecida; Oliveira,José Rogério; Rodrigues,Fabrício Ávila.
AbstractTomato bacterial spot on tomato may be caused by four species of Xanthomonas and among them X. gardneri(Xg) is the most destructive one, especially in areas irrigated using a center pivot system in Minas Gerais state and the midwest region of Brazil. Due to the ineffectiveness of chemical control and the lack of cultivars with high levels of genetic resistance, this study investigated the potential of three antagonists (Streptomyces setonii (UFV618), Bacillus cereus (UFV592) and Serratia marcescens (UFV252)), and the hormone jasmonic acid (JA) as a positive control, to reduce bacterial spot symptoms and to potentiate defense enzymes in the leaves of tomato plants infected by Xg. Tomato seeds were microbiolized with each antagonist, and the soil was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Xanthomonas gardneri; Solanum lycopersicum; Biological control; Host defense mechanisms; Induced resistance.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000400417

AntEpiSeeker2.0: extending epistasis detection to epistasis-associated pathway inference using ant colony optimization
Provedor de dados: 17
Autores: Yupeng Wang; Xinyu Liu; Romdhane Rekaya.
Genome-wide association studies (GWAS) have become a standard method for finding genetic variations that contribute to common, complex diseases. Recently, it is suggested that these diseases may be caused by epistatic interactions of multiple genetic variations. Although tens of software tools have been developed for epistasis detection, few are able to infer pathway importance from the identified epistatic interactions. AntEpiSeeker is originally an algorithm for detecting epistatic interactions in case-control studies, using a two-stage ant colony optimization (ACO) algorithm. We have developed AntEpiSeeker2.0, which extends the AntEpiSeeker algorithm to inference of epistasis-associated pathways, based on a natural use of the ACO pheromones. By looking...
Tipo: Manuscript
Palavras-chave: Genetics &amp; Genomics; Bioinformatics.
Ano: 2012
URL: http://precedings.nature.com/documents/6994/version/1

Anterior Disc Displacement and the Superior Head of Lateral Pterygoid Muscle: A Case-Control Study
Provedor de dados: 77
Autores: Pompei Filho,Horácio; Suazo Galdames,Iván; Zavando,Daniela; Guimarães,Antonio Sergio.
The objective of this study was to assess the association between an increase in the proportion of the superior head of the lateral pterygoid muscle (SHLP) inserted into the temporomandibular joint (TMJ) disc and the presence of anterior disc displacement diagnosed by using MRI. We analyzed 75 images of patients with anterior displacement and 75 controls with normal relationship between the mandibular head and the articular tubercle also diagnosed by MRI. Levels of insertion were measured. Descriptive and analytic statistics were calculated. Analyses of differences were made by Fischer's exact test and also were calculated clinical significance (OR, CI = 95%). The average insertion of SHLP was 71.14% (SD 14.13) in controls and 67.80% (SD.16.23) in cases...
Tipo: Journal article
Palavras-chave: Temporomandibular joint; Lateral pterygoid muscle; Articular disc; Anterior disc displacement.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000200004

Anthelmintic activity of forage chicory (Cichorium intybus) and field efficacy of ivermectin against gastrointestinal nematodes in Danish cattle
Provedor de dados: 21
Autores: Peña-Espinoza, Miguel.
Parasitism with gastrointestinal (GI) nematodes is ubiquitous in grazing cattle and its control is critical to sustain satisfactory levels of animal health, welfare and productivity. Currently, conventional parasite control strategies relying exclusively on anthelmintic drugs are severely threatened by the development of anthelmintic resistance (AR) in bovine nematodes in several countries. In Denmark, cattle farmers and their veterinarians depend largely on macrocyclic lactones (ML), mainly ivermectin (IVM), for nematode control. However, no studies have evaluated the field efficacy of IVM against GI nematodes in Danish cattle. Alternative control approaches to minimize selection for AR and that can complement the use of the still effective anthelmintics...
Tipo: Thesis
Palavras-chave: Production systems; Dairy cattle; Beef cattle; Feeding and growth; Health and welfare.
Ano: 2016
URL: http://orgprints.org/30837/1/M%20Pe%C3%B1a-Espinoza_PhD%20thesis%20%28secured%29.pdf

Anthelmintic effect and intake dynamics of oak (quercus spp.) and walnut (juglans regia) foliage in goats
Provedor de dados: 21
Autores: Heckendorn, F.; Lèbre, A.; Destailleur, V.; Bouy, M.; Spiegler, V.; Lehmann, S.; Hensel, A.
Oak and Walnut are both of ethnoveterinary importance, especially for anthelmintic treatment of ruminants [1,2]. H2O and EtOH-water (1:1) extracts of oak and walnut foliage were used for phytochemical profiling and for in vitro assays with Caenorhabditis elegans and gastrointestinal nematodes (GIN). Oak extracts contained mainly tannins, walnut extracts were dominated by flavonoids. Oak EtOH extract caused significant lethal effects in adult C. elegans (LC50 1.5 mg/mL); motility of GIN L3 larvae was reduced by the EtOH extract but at substantially higher concentrations. Egg hatching was inhibited by both, the oak H2O and EtOH extract. In vivo: 42 lactating Alpine goats carrying natural GIN infections were allocated to 3 feeding groups: oak, walnut and...
Tipo: Journal paper
Palavras-chave: Sheep and goats; Health and welfare.
Ano: 2017

Anthocoris nemorum (Heteroptera: Anthocoridae) as predator of cabbage pests-voracity and prey preference
Provedor de dados: 21
Autores: Simonsen, Marie-Louise Rugholm; Enkegaard, Annie; Bang, Camilla Nordborg; Sigsgaard, Lene.
Laboratory experiments were performed with adult female Anthocoris nemorum (Linnaeus) (Heteroptera: Anthocoridae) at 20°C ±1°C, L16:D8, 60-70% RH to determine voracity and preference on cabbage aphids (Brevicoryne brassicae L.) (Hemiptera: Aphididae), diamondback moth larvae (Plutella xylostella L.) (Lepidoptera: Plutellidae) and Western flower thrips (Frankliniella occidentalis Pergande) (Thysanoptera: Thripidae) (model species for cabbage thrips (Thrips angusticeps Uzel) (Thysanoptera: Thripidae)). When offered individually, A. nemorum readily accepted all three species with no significant differences in consumption. When aphids and moth larvae were offered simultaneously, A. nemorum showed preference for the latter (numbers eaten and biomass consumed)....
Tipo: Journal paper
Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2010
URL: http://orgprints.org/23470/1/Simonsen%20et%20al%202010.pdf

Anthracnose control of ‘Prata-Ana’ banana with pre-harvest phosphite application
Provedor de dados: 94
Autores: Rodrigues,Maria Luísa Mendes; Souza,Samuel Gustavo Ribeiro de; Mizobutsi,Edson Hiydu; Pinheiro,Juceliandy Mendes da Silva; Monção,Flávio Pinto; Mizobutsi,Gisele Polete.
Abstract  The aim of this study was to evaluate the anthracnose intensity in ‘Prata-Anã’ banana with the application of three phosphite formulations in two application intervals in the developing banana bunches and to evaluate the physical and chemical characteristics of fruits. In the field, in addition to producer management, three phosphite formulations were evaluated: FCu1 (4% Cu + 20% P2O5), FCu2 (4% Cu + 22% P2O5) and FK (42% P2O5 + 27.7% K2O) sprayed on banana bunches at different application frequencies: four and eight times. The experiment was carried out in a randomized blocks design following a 5 x 2 factorial scheme, with 3 phosphite formulations, pure water and no application and two application intervals. Pure water and no application were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colletotrichum musae; Severity; Musa spp; Phosphites; Treatment.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000300401

ANTHROPAGENIC AND NATURAL DETERMINANTS OF THE POPULATION OF A SENSITIVE SPECIES: SAGE GROUSE IN NEVADA
Provedor de dados: 31
Autores: van Kooten,   G. Cornelis; Eagle,   Alison J.; Eiswerth,   Mark E.
This paper uses Nevada data to conduct regression analyses of the relationship between sage grouse (Centrocercus urophasianus) population sizes and potential causal factors. This is policy-relevant because of current petitions for listing this species under the Endangered Species Act. A key feature is that, although monitoring of sage grouse has occurred for many decades, data collection methods and level of monitoring effort have not been consistent. To account for this feature we use, as dependent variables, standardized measures such as population counts and harvest (hunting success) per unit of effort. Preliminary findings suggest that such measures have been particularly sensitive to whether or not humans used strychnine for predator control, with...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/18163

ANTHROPOGENIC AND NATURAL DETERMINANTS OF THE POPULATION OF A SENSITIVE SPECIES: SAGE GROUSE IN NEVADA
Provedor de dados: 31
Autores: van Kooten,   G. Cornelis; Eagle,   Alison J.; Eiswerth,   Mark E.; Feng,   Hui.
This paper uses Nevada data to conduct regression analyses of the relationship between sage grouse (Centrocercus urophasianus) population sizes and potential causal factors. This is policy-relevant because of current petitions for listing this species under the Endangered Species Act. A key feature is that, although monitoring of sage grouse has occurred for many decades, data collection methods and level of monitoring effort have not been consistent. To account for this feature we use, as dependent variables, standardized measures such as population counts and harvest (hunting success) per unit of effort. Preliminary findings suggest that such measures have been particularly sensitive to whether or not humans used strychnine for predator control, with...
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/20382

Anthropometric studies for designing to fit gari-frying workers
Provedor de dados: 111
Autores: aremu, olaniyi olateju; salami, ismaila olasunkanmi; Adetifa, Babatunde o; Onu, Livinus i; Adegbite, adeyemi E; olokoshe, abimbola a; Samuel, Taiwo Moses.
 Work system and product design require anthropometric data of the user population relevant to the facility in order to have safe operation in service as well as increase user satisfaction and efficiency. Designing to fit gari-frying workers in each of the southwestern states in Nigeria is geared towards this end. The age, weight and twenty-five body dimensions of 120 gari-frying workers in Lagos, Ogun, Oyo, Osun, Ondo and Ekiti, selected by random sampling, were measured. The body dimensions include stature, shoulder height, sitting height, eye height, forward grip reach, buttock-popliteal height, buttock-knee length, knee height, thigh clearance, forearm-to-forearm breadth, waist depth, elbow rest height, knuckle height, elbow grip length, hip breadth,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ergonomics; Anthropometry anthropometry  workstation  gari-frying  cassava processing  design to fit  BMI  BSA.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3403

Antiangiogenic effect of betamethasone on the chick cam stimulated by TA3 tumor supernatant
Provedor de dados: 48
Autores: LEMUS,DAVID; DABANCENS,ALFREDO; ILLANES,JULIO; FUENZALIDA,MARCELA; GUERRERO,ANIBAL; LÓPEZ,CLAUDIA.
Tumor growth is the result of combined cell proliferation overwhelming cell death and neoangiogenesis. This report shows CAM angiogenesis promoted by TA3 tumor supernatant with or without low dosis of betamethasone (Minimal antiangiogenic concentration: ß-MAAC). Methylcellulose discs instilled with 10 µl of ß-MAAC (0.08 µg/ml),10 µl of tumor supernatant(TA3ts),5 µl ß-MAAC + 5 µl TA3ts, and 10 µl of PBS as control were implanted in host chick eggs. On day 12, the grafts were removed, photographed and fixed. Sections were stained in parallel, one and three with hematoxylin-eosin, and section two by the Tunel method. The number of vessels was evaluated in a microscopic field of the CAM (2250 µm2 ). The results show that ß-MAAC produced a significant...
Tipo: Journal article
Palavras-chave: Antiangiogenesis; Betamethasone; CAM; Tumor.
Ano: 2001
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602001000300010

Antibacterial activity of bacteriocin-like substance P34 on Listeria monocytogenes in chicken sausage
Provedor de dados: 58
Autores: Sant'Anna,Voltaire; Quadros,Deoni A.F.; Motta,Amanda S.; Brandelli,Adriano.
The antimicrobial activity of the bacteriocin-like substance (BLS) P34 against Listeria monocytogenes was investigated in chicken sausage. The BLS was applied to chicken sausages (256 AU g-1) previously inoculated with a suspension of 10² cfu g-1 of L. monocytogenes. BLS P34 inhibited the indicator microorganism in situ in all incubation times for up to 10 days at 5 °C. The effectiveness of BLS P34 was increased when it was added in combination with nisin. The bacteriocin was also tested in natural eatable natural bovine wrapping (salty semi-dried tripe) against the same indicator microorganism, also showing inhibitory capability in vitro. BLS P34 showed potential to control L. monocytogenes in refrigerated meat products.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteriocin; Chilled chicken sausage; Listeria monocytogenes; Biopreservation.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400019

Antibacterial activity of chitosan biofilm for the conservation of fertile and table eggs
Provedor de dados: 45
Autores: Prado,R.O.F.; Tellez,I.G.; García,M.L.J.; Aldaco,L.L.E.; García,C.A.C.
ABSTRACT The aim of this study was to develop a chitosan biofilm against Salmonella enteritidis, for the conservation of fertile and table eggs. Two experiments were performed. Experiment 1: 400 specific pathogen-free table eggs were divided in a completely randomized design into four treatments, five replicates and each replicate with 20 table eggs. Experimental groups were assigned to control and 1, 5 and 10% chitosan treatment. The eggs were immersed in the chitosan solution. They were then exposed to Salmonella enteritidis and stored for 1, 24, 96 and 168h at 4ºC. The eggs were then washed with 10mL of physiological saline solution. Experiment 2: 80 specific pathogen-free fertile eggs were tested, the assays were assigned to control and 1, 5 and 10%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitosan; Fertile eggs; Table eggs; Salmonella enteritidis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100208

Antibacterial activity of essential oils on Xanthomonas vesicatoria and control of bacterial spot in tomato
Provedor de dados: 86
Autores: Lucas,Gilvaine Ciavareli; Alves,Eduardo; Pereira,Ricardo Borges; Perina,Fabiano José; Souza,Ricardo Magela de.
The objective of this work was to evaluate the effects of plant essential oils (EOs) on the growth of Xanthomonas vesicatoria, on bacterial morphology and ultrastructure, and on the severity of tomato bacterial spot. EOs from citronella, clove, cinnamon, lemongrass, eucalyptus, thyme, and tea tree were evaluated in vitro at concentrations of 0.1, 1.0, 10, and 100% in 1.0% powdered milk. The effect of EOs, at 0.1%, on the severity of tomato bacterial spot was evaluated in tomato seedlings under greenhouse conditions. The effects of citronella, lemongrass, clove, and tea tree EOs, at 0.1%, on X. vesicatoria cells were evaluated by transmission electron microscopy. All EOs showed direct toxic effect on the bacteria at a 10%-concentration in vitro. Under...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative control of plant disease; Cell ultrastructure; Pathogenic bacteria.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000300006

Antibacterial activity of medicinal plant extracts against Ralstonia solanacearum (Smith) that causes bacterial wilt in hot pepper (Capsicum annuum L.)
Provedor de dados: 3
Autores: Yihune, Endalamaw; Yemata, Getahun.
This study was conducted to evaluate the in vitro antibacterial activity of some medicinal plants against Ralstonia solanacearum. Bioactive chemicals were extracted from Burcea antidysenterica, Eucalyptus citriodora, Justicia schimperiana, Lantana camara, Melia azedarach and Ricinus communis leaves using maceration method. The bioassay was evaluated by disc diffusion method. The pathogen was isolated from infected Capsicum annuum plants using Casamino acid-Peptone-Glucose agar (CPG) medium. The isolate was identified using cultural, biochemical characteristics, pathogenicity test and found to be R. solanacearum. The methanol extracts had different composition, percentage extract yield, antibacterial activity and relative percentage inhibition. Unlike...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biotechnology  botany  microbial crude extract; Eucalyptus citriodora (Hook); Inhibition zone  phytochemicals; Ricinus communis L. Biotechnology  Microbial.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/45402

Antibacterial Activity of Polygonum Orientale Extracts Against Clavibacter Michiganensis subsp. michiganensis, the Agent of Bacterial Canker of Tomato Disease
Provedor de dados: 52
Autores: Cai,Jin; Gao,Yichen; Wang,Mengliang; Zhang,Jing; Zhang,Yongbin; Wang,Qi; Liu,Jiquan.
Abstract Clavibacter michiganensis subsp. michiganensis (Cmm), which is a Gram positive bacterium, causes the bacterial canker of tomato disease. The purpose of the study was to evaluate the antibacterial activity of Polygonum orientale extracts against Cmm. In this study, firstly, effects of three extracting parameters (extractive time, extractive temperature, and solid to liquid ratio) of orthogonal experiment design L27 (313) were conducted. Secondly, survival rate was determined and inhibition zone of Cmm rescued post-stress was monitored. Finally, extracellular OD260nm value, extracellular protein content, conformational structure of membrane protein, extracellular alkaline phosphatase (AKP) activity, and ATPase activity were measured to investigate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant bioactive compounds; Antibacterial agent; Plant pathogenic bacterium; Orthogonal experiment design; Biological control.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100217

Antibacterial activity of propolis-based toothpastes for endodontic treatment
Provedor de dados: 60
Autores: Victorino,Fausto Rodrigo; Bramante,Clovis Monteiro; Watanabe,Evandro; Ito,Izabel Yoko; Franco,Selma Luci; Hidalgo,Mirian Marubayashi.
This study evaluated the antibacterial activity of propolis-based toothpastes used as intracanal medication in endodontic treatment. The propolis-based toothpastes were prepared using an extract established in previous studies (identified as A70D and D70D). Calcium hydroxide paste was used as a control. The bacteria employed were Streptococcus mutans (ATCC 25175), Staphylococcus aureus (ATCC 6538), Staphylococcus aureus (ATCC 25923), Kocuria rhizophila (ATCC 9341), Escherichia coli (ATCC 10538), Pseudomonas aeruginosa (ATCC 27853), Enterococcus hirae (ATCC 10541), Streptococcus mutans (ATCC 25175). Five field strains isolated from saliva were used: Staphylococcus spp. (23.1 - coagulase positive), Staphylococcus spp. (23.5 - coagulase negative),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Propolis/antibacterial activity; Tooth paste/with propolis/antibacterial activity; Endodontics/treatment.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000400025

Antibacterial activity of the Antarctic bacterium Janthinobacterium sp: SMN 33.6 against multi-resistant Gram-negative bacteria
Provedor de dados: 69
Autores: Asencio,Geraldine; Lavin,Paris; Alegría,Karen; Domínguez,Mariana; Bello,Helia; González-Rocha,Gerardo; González-Aravena,Marcelo.
Background The increment of resistant strains to commonly used antibiotics in clinical practices places in evidence the urgent need to search for new compounds with antibacterial activity. The adaptations that Antarctic microorganisms have developed, due to the extreme environment that they inhabit, promote them as a potential new source of active compounds for the control of microorganisms causing infections associated with health care. The aim of this study was to evaluate the antibacterial activity of an ethanol extract of the Antarctic bacterium Janthinobacterium sp., strain SMN 33.6, against nosocomial multi-resistant Gram-negative bacteria. Results Inhibitory activity against human Gram-negative bacterial pathogens, with concentrations that varied...
Tipo: Journal article
Palavras-chave: Antarctica; Antimicrobial; Antibiotic resistance; Bacterial pigment.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000100001

Antibacterial and antibiofilm activity of carvacrol against Salmonella enterica serotype Typhimurium
Provedor de dados: 60
Autores: Trevisan,Daliah Alves Coelho; Silva,Alex Fiori da; Negri,Melyssa; Abreu Filho,Benício Alves de; Machinski Junior,Miguel; Patussi,Eliana Valéria; Campanerut-Sá,Paula Aline Zanetti; Mikcha,Jane Martha Graton.
ABSTRACT The present study evaluated the antibacterial and antibiofilm activity of carvacrol against Salmonella Typhimurium. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined and the time-kill curve and scanning electron microscopy (SEM) were performed to evaluate antibacterial activity. Antibiofilm activity was evaluated by quantifying total biomass using crystal violet assay, and metabolic activity was determined using MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay. The action of carvacrol against preformed biofilm on polypropylene and stainless steel was also evaluated by colony counting and SEM. The MIC and MBC was 312 µg mL-1. Carvacrol at MIC and 2 x MIC eliminated cells...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carvacrol; Biofilm; Antibacterial activity; Salmonella Typhimurium.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000100612

Antibacterial and anti-biofilm activity of cinnamon essential oil and eugenol
Provedor de dados: 65
Autores: Millezi,Alessandra Farias; Costa,Karine Angélica Dalla; Oliveira,José Maria; Lopes,Susana Patrícia; Pereira,Maria Olívia; Piccoli,Roberta Hilsdorf.
ABSTRACT: Biofilms are responsible for most of the interference caused by microorganisms in food processing. The aim of this study was to evaluate the cinnamon (Cinnamomum zeylanicum) essential oil and eugenol sanitizer and anti-biofilm activity against biofilms. Concentrations used of essential oil were 0.0% (control) 0.12%; 0.48%; 0.96% and 1.92%; the amount of eugenol was 0.76%. Concentrations were determined from other published studies. Number of viable cells and quantification the bacterial biomass were determined. Anti-biofilm treatment was effective in preventing the formation of biofilms. The 1.92% concentration was the most satisfactorily with Escherichia coli reduction of 5.91log CFUcm-2 and Staphylococcus aureus reduction of 5.17log CFUcm-2...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biofilm; Antimicrobial natural; Food processing.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100452

Antibacterial and Antioxidant Activities of Slender Amaranth Weed
Provedor de dados: 87
Autores: AKBAR,M.; SHERAZI,I.N.; IQBAL,M.S.; KHALIL,T.; WAQAS,H.M.
ABSTRACT: In the present study, antibacterial and antioxidant [1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity] activities of a weed, slender amaranth (Amaranthus viridis L.) were investigated. Extracts of different plant parts were prepared in n-hexane, chloroform and ethyl acetate. Antibacterial activity was measured by using 100 mg mL-1 concentration extracts against 4 deadly phytopathogenic bacterial species viz. Pseudomonas syringae Van Hall, Ralstonia solanacearum Smith, Erwinia carotovora (Jones), Holland and Xanthomonas axonopodis Hasse. In antioxidants assays, 10, 20 and 30 mg mL-1 extracts were used keeping DPPH as control. In these bioassays, ethyl acetate fraction of A. viridis leaf exhibited the best antibacterial and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amaranthus viridis; Bioactive components; DPPH; Phytopathogens; Weeds.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100206

Antibacterial efficacy of nisin, bacteriophage P100 and sodium lactate against Listeria monocytogenes in ready-to-eat sliced pork ham
Provedor de dados: 58
Autores: Figueiredo,Ana Cláudia L.; Almeida,Rogeria C.C.
ABSTRACT The effectiveness of bacteriophage P100, nisin and sodium lactate, individually and in combination, in inhibiting Listeria monocytogenes in ready-to-eat pork ham slices was assessed. The antimicrobials were applied to the surfaces of ready-to-eat pork ham slices, which were inoculated with a mixture of L. monocytogenes. Among the individual antimicrobial treatments, bacteriophage P100 was the most effective, decreasing L. monocytogenes to undetectable levels at zero and 72 h post-infection. Sodium lactate was the least effective treatment. Treatment with nisin at zero h significantly reduced initial cell density (p &lt; 0.05). However, this pattern was not observed at 72 h of storage. A significant difference (p &lt; 0.05) existed between the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobials; Food safety; Meat products; Listeria monocytogenes.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000400724

Antibiosis of Trichoderma spp strains native to northeastern Mexico against the pathogenic fungus Macrophomina phaseolina
Provedor de dados: 58
Autores: Mendoza,José Luis Hernández; Pérez,María Isabel Sánchez; Prieto,Juan Manuel González; Velásquez,Jesús DiCarlo Quiroz; Olivares,Jesús Gerardo García; Langarica,Homar Rene Gill.
Abstract Sampling of agricultural soils from the Mexican northeastern region was performed to detect Trichoderma spp., genetically characterize it, and assess its potential use as a biologic control agent against Macrophomina phaseolina. M. phaseolina is a phytopathogen that attacks over 500 species of cultivated plants and causes heavy losses in the regional sorghum crop. Sampling was performed immediately after sorghum or corn harvest in an area that was approximately 170 km from the Mexico-USA border. Sixteen isolates were obtained in total. Using colony morphology and sequencing the internal transcribed spacers (ITS) 1 and 4 of 18S rDNA, 14 strains were identified as Trichoderma harzianum, T. koningiopsis and T. virens. Subsequently, their antagonistic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrophomina phaseolina; Antagonism; Hyperparasitism; Trichoderma.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401093

Antibiotic prophylaxis in orthopedic surgeries: the results of an implemented protocol
Provedor de dados: 55
Autores: Queiroz,Raquel; Grinbaum,Renato S.; Galvão,Luciana L.; Tavares,Fernando G.; Bergsten-Mendes,Gun.
Though the basic principles of antibiotic prophylaxis have been well established, there is still considerable incorrect usage, including how much is prescribed and especially in the duration of treatment, which is generally superior to what is indicated. The adequate use of these drugs contributes towards decreasing the time of internment of the patient, prevents surgical site infection (SSI), decreasing the development of resistant microorganisms, and towards reduced costs for the hospital pharmacy. A protocol for the use of antibiotic prophylaxis in the Orthopedics and Traumatology Service of the Hospital do Servidor Público Estadual de São Paulo was developed. The objectives of the study were to promote rational antibiotic surgical prophylaxis, through...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibiotic prophylaxis; Protocol; Surgical site infection; Pharmacy.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000400003

Antibiotic usage in organic pigs - Will consumers benefit from restricted antibiotic usage in organic pigs?
Provedor de dados: 21
Autores: Anonymous, .
Spread of antibiotic resistance (AR) along the food-chain is a major food safety concern due to the risk of treatment failure of human foodborne infections. Can lower AR levels be claimed as a particular quality of organic pork due to the restrictions on antibiotic usage? Or will the current slaughtering of organic and conventional pigs together abolish this quality attribute? Furthermore,lack of registration of antibiotic usage in some EU member states necessitates methods for estimating the consumption (control  of imprudent use) of antibiotics in organic herds.
Tipo: Other
Palavras-chave: Food security; Food quality and human health Pigs.
Ano: 2012
URL: http://orgprints.org/22540/7/22540.pdf

Antibiotic use by farmers to control mastitis as influenced by health advice and dairy farming systems
Provedor de dados: 21
Autores: Poizat, Axelle; Bonnet-Beaugrand, Florence; Rault, Arnaud; Fourichon, Christine; Bareille, Nathalie.
Mastitis is a bacterial disease common in dairy farms. Although knowledge about mastitis and its optimal technical management and treatment is now available, some dairy farmers still use antibiotics in inappropriate ways. Antibiotic use by farmers can be influenced by personal restraints and motivations, but it can be assumed that external drivers are also influential. The main purpose of this article is thus to analyse the choices of antibiotic and alternative medicine use for mastitis treatment and investigate the possible influence of two unexplored external drivers in dairy farms: (i) the health advice offered to farmers by farm advisors and veterinarians, (ii) the dairy farming system, as defined by combining the market valuation chosen for the milk,...
Tipo: Journal paper
Palavras-chave: Dairy cattle; Farming Systems; Health and welfare.
Ano: 2017
URL: http://orgprints.org/33567/1/Poizat17PVM.pdf

Antibodies against electronegative LDL inhibit atherosclerosis in LDLr-/- mice
Provedor de dados: 56
Autores: Grosso,D.M.; Ferderbar,S.; Wanschel,A.C.B.A.; Krieger,M.H.; Higushi,M.L.; Abdalla,D.S.P.
In order to determine the effect of antibodies against electronegative low-density lipoprotein LDL(-) on atherogenesis, five groups of LDL low receptor-deficient (LDLr-/-) mice (6 per group) were immunized with the following antibodies (100 µg each): mouse anti-LDL(-) monoclonal IgG2b, rabbit anti-LDL(-) polyclonal IgG or its Fab fragments and mouse irrelevant monoclonal IgG and non-immunized controls. Antibodies were administered intravenously one week before starting the hypercholesterolemic diet (1.25% cholesterol) and then every week for 21 days. The passive immunization with anti-LDL(-) monoclonal IgG2b, polyclonal antibody and its derived Fab significantly reduced the cross-sectional area of atherosclerotic lesions at the aortic root of LDLr-/- mice...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Minimally modified LDL; Passive immunization; Monoclonal antibody; Atherogenesis.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001200007

Antibodies specific to infectious bronchitis in broilers in Ceará state, Brazil
Provedor de dados: 45
Autores: Cardoso,W.M.; Gomes,L.P.; Romão,J.M.; Salles,R.P.R.; Teixeira,R.S.C.; Sobral,M.H.N.R.; Câmara,S.R.; Oliveira,W.F.
The experiment was carried out to determine the antibody levels to infectious bronchitis virus (IBV) in 1120 broilers of two broiler flocks, both from the same parental flock and free from previous vaccination. Forty chicks of each line were alloted to the control group and the sera were tested by indirect ELISA. The vaccination program consisted on the administration of commercial vaccines against IBV at 10 and 25 days of age. Chicks with low levels of maternal antibodies (Mab) did not show significant titers to the first vaccinal stimulus. They presented a vaccinal response to the second vaccinal stimulus reaching the top around GMT 1100 at 45 days. Chicks with high Mab titers did not show significant titers to the primary and secondary vaccinal stimuli,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler; Infections bronchitis; Antibody.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000300007

Antibody and cytokine serum levels in patients subjected to anti-rabies prophylaxis with serum-vaccination
Provedor de dados: 80
Autores: Ayres,J. A.; Barraviera,B.; Calvi,S. A.; Carvalho,N. R.; Peraçoli,M. T. S.
Rabies is considered a fatal disease once clinical symptoms have developed. The aim of this study was to evaluate epidemiological aspects and immune response in patients attacked by domestic and wild animals and subjected to post-exposure rabies treatment with equine serum and associated vaccine. Thirty-three patients were evaluated; they were between 13 and 65 years old, 75.8% were male and 24.2% female, and from the Botucatu neighborhood. Twenty healthy control individuals with the same age range were also studied. Specific antibodies to equine immunoglobulins and IFN-gamma, IL-2, IL-4, and IL-10 production were evaluated by ELISA. IgM, IgE, IgG and subclasses, and rabies virus antibodies serum levels were determined by nephelometry and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rabies; Anti-rabies prophylaxis; Immunoglobulins; Cytokines.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992006000300008

Antibody responses elicited in mice immunized with Bacillus subtilis vaccine strains expressing Stx2B subunit of enterohaemorragic Escherichia coli O157:H7
Provedor de dados: 58
Autores: Gomes,P.A.D.P.; Bentancor,L.V.; Paccez,J.D.; Sbrogio-Almeida,M.E.; Palermo,M. S.; Ferreira,R.C.C.; Ferreira,L.C.S.
No effective vaccine or immunotherapy is presently available for patients with the hemolytic uremic syndrome (HUS) induced by Shiga-like toxin (Stx) producedbyenterohaemorragic Escherichia coli (EHEC) strains, such as those belonging to the O157:H7 serotype. In this work we evaluated the performance of Bacillus subtilis strains, a harmless spore former gram-positive bacterium species, as a vaccine vehicle for the expression of Stx2B subunit (Stx2B). A recombinant B. subtilis vaccine strain expressing Stx2B under the control of a stress inducible promoter was delivered to BALB/c mice via oral, nasal or subcutaneous routes using both vegetative cells and spores. Mice immunized with vegetative cells by the oral route developed low but specific anti-Stx2B...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: EHEC; Stx; Bacillus subtilis; Vaccines; HUS.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000200023

Antibody responses in mice after immunization with inactivated bovine respiratory syncytial virus using different adjuvants
Provedor de dados: 65
Autores: Spilki,Fernando Rosado; Almeida,Renata Servan de; Arns,Clarice Weis.
Bovine respiratory syncytial virus (BRSV) causes pneumonia in young cattle. Modified-live-virus (MLV) and inactivated vaccines are currently used for the control of clinical effects of BRSV infections in cattle. On the present research, the stimulation of specific anti-BRSV immunoglobulin isotypes was investigated, through the use of different commercially available adjuvants (Water-in-oil emulsion, Quil A, Aluminum-hydroxide) in inbred mice (Balb/C and C57BL/6). BRSV antibodies were measured using an enzyme-linked immunosorbent assay (ELISA) and the results were compared to the antibody levels induced by immunization of animals using live-BRSV-virus. Water-in-oil emulsion and alum- adjuvant preparations induced higher levels of IgG1 immunoglobulins,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine respiratory syncytial virus; BRSV; Adjuvants; Murine model; Inactivated vaccines.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010001100013

Anti-coagulase-negative Staphylococcus activity of ethanolic extracts of propolis from two Brazilian regions and synergism with antimicrobial drugs by the E-test method
Provedor de dados: 80
Autores: Mantovani,R. P.; Rall,V. L. M.; Batalha,J. E. N.; Fernandes,A. A. H.; Fernandes Junior,A.
Propolis is a natural resinous substance collected by bees from vegetal sources and its therapeutic properties have been investigated. In this work, we evaluated the inhibitory activity of ethanolic extracts of propolis (EEP) from the Southeast and South of Brazil on coagulase-negative Staphylococcus (CNS) growth as well as the EEP in vitro synergism with antimicrobial drugs by using the diffusion method (E-test). The EEP chemical characteristics (dry weight, pH, flavonoid and phenolic compounds) were determined. Seven drugs were tested, and synergism was observed between three drugs and Southeast EEP, six drugs and South EEP, and one drug and ethanol control. Ethanolic extracts of propolis from the South of Brazil presented the greatest flavonoid content...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian propolis; Coagulase-negative Staphylococcus; E-test; Antimicrobial drugs; Synergism.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000200012

Anticoccidial activity of Curcuma longa L. in broilers
Provedor de dados: 52
Autores: Abbas,Rao Zahid; Iqbal,Zafar; Khan,Muhammad Nisar; Zafar,Muhammad Arif; Zia,Muhammad Anjum.
Comparative efficacy of turmeric (Curcuma longa L.) crude powder and salinomycin sodium on the occurrence of coccidiosis and growth performance of broiler was evaluated. A total of 90, day-old chicks were randomly divided into six groups. From first day onward, ration was supplemented with 1, 2 and 3 % turmeric powder in groups 2, 3 and 4, respectively, group 1 received salinomycin sodium @ 12 g 50 kg-1 feed while groups 5 and 6 were kept as infected un-medicated and uninfected un-medicated controls. First five groups were infected with Eimeria tenella sporulated oocysts @ 1,00,000/chick at the age of 20 days. Body weight gain, feed consumption, feed conversion ratio were investigated throughout the experimental period, and bloody diarrhea and oocysts...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Curcuma longa; Coccidiostat; Eimeria tenella.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100008

Anticoccidial efficacy of drinking water soluble diclazuril in the control of Eimeria acervulina oocysts on experimentally-infected broiler chickens
Provedor de dados: 45
Autores: Assis,R.C.L.; Cury,M.C.; Luns,F.D.; Assis,R.L.
The experiment was carried out with 150 Cobb broiler chickens divided into 3 groups with 50 birds each. The groups of infected chickens orally received 1ml of inoculum containing 3x103 Eimeria acervulina sporulated oocysts at 12 days of age. Group 1 was kept as a positive control with infected non-medicated birds, group 2 was medicated with diclazuril (1%) with a dose of 1mL/4 L of drinking water for 2 successive days, 5 days after infection, while group 3 was kept as negative control with non-infected and non-medicated birds. Oocysts count per gram of feces, score of macroscopic intestinal lesions and weight gain were evaluated. The group treated with diclazuril showed significant and satisfactory improvement in the assessment criteria when compared to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eimeria acervulina; Broilers; Coccidiosis; Diclazuril.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000500016

Anticorpos contra vírus do grupo da língua azul em caprinos e ovinos do sertão de Pernambuco e inferências sobre sua epidemiologia em regiões semiáridas
Provedor de dados: 45
Autores: Mota,I.O.; Castro,R.S.; Alencar,S.P.; Lobato,Z.I.P.; Lima Filho,C.D.F.; Silva,T.L. Araújo; Dutra,A.C.T.; Nascimento,S.A.
The prevalence of antibodies against bluetongue virus was investigated in 41 dairy goats and 40 sheep herds in the semi-arid region of Pernambuco state and the conditions for insect Culicoides maintenance, considering climate dynamics and vector competence, were evaluated. The percents of seropositive herds in agar gel immunodiffusion test for bluetongue virus group were 24 for goats and 27.5 for sheep. The estimated prevalences of seropositive animals were 3.9% for goats (n = 410) and 4.3% for sheep (n = 400). The prevalences of seropositive animals were low in the mesoregion of Sertão Pernambucano (4.8% for goats and 4.1% for sheep) and São Francisco Pernambucano (1.0% for goats and 4.5% for sheep). There were no significant differences between species...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arbovirosis; Culicoides; Epidemiology.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000600045

Antidepressant and skeletal muscle relaxant effects of the aqueous extract of the Prosopis cineraria
Provedor de dados: 60
Autores: George,Mathew; Joseph,Lincy; Sharma,Abishika.
The aqueous leaves extract of Prosopis cineraria (AEPC) is used traditionally for the treatment of various CNS disorder. The purpose of this study was to evaluate the extract for antidepressant and skeletal muscle relaxant activity. The antidepressant effect of the extract was evaluated using Forced swim test (FST). The immobility periods of control and treated mice were recorded. The antidepressant-like effect of tested compound was compared to that of imipramine (15 mg/kg. p.o). Muscle relaxant property was studied using rotarod apparatus and total fall off time for standard and control group was recorded. Phytochemical screening revealed the presence of saponins, flavonoids, alkaloids, glycosides, tannins and phenolic compounds. The leaf extract at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Proposis cineraria/pharmacognosy; Proposis cineraria/extract; Proposis cineraria/antidepressant effect; Proposis cineraria/extract; Proposis cineraria/relaxant property; Skeletal muscle; Imipramine/comparative study; Diazepam/comparative study.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000300025

Antidepressant effects of Kai-Xin-San in fluoxetine-resistant depression rats
Provedor de dados: 56
Autores: Dong,X.Z.; Wang,D.X.; Lu,Y.P.; Yuan,S.; Liu,P.; Hu,Y.
This study aimed to investigate the antidepressant effect and the mechanism of action of Kai-Xin-San (KXS) in fluoxetine-resistant depressive (FRD) rats. Two hundred male Wistar rats weighing 200±10 g were exposed to chronic and unpredictable mild stresses (CUMS) for 4 weeks and given fluoxetine treatment simultaneously. The rats that did not show significant improvement in behavioral indexes were chosen as the FRD model rats. These rats were randomly divided into four groups: FRD model control; oral fluoxetine and aspirin; oral KXS at a dose of 338 mg·kg–1·day–1; and oral KXS at a dose of 676 mg·kg–1·day–1. Rats continued to be exposed to CUMS and underwent treatment once a day for 3 weeks, then cytokine (COX-2, IFN-γ, IL-1β, IL-2, IL-4, IL-6, IL-10,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Kai-Xin-San; Fluoxetine-resistant depression; Chronic unpredictable mild stress; Inflammatory factor; Anti-depression.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001000601

Antidepressant effects of standardized extract of Commiphora mukul Engl. in olfactory bulbectomized rats
Provedor de dados: 52
Autores: Kalshetti,Padmaja Bhimashankar; Alluri,Ramesh; Thakurdesai,Prasad Arvind.
The objective of this work was to evaluate the effects of standardized hydroalcholic extract of Commiphora mukul (HECM) in animal model of chronic stress medicated depression, namely olfactory bulbectomy (OBX) model in rats. Effects of 14-day (subacute) oral pretreatment of HECM (50, 100 and 200 mg/kg) were evaluated on depression and stress related parameters on OBX rats. Separate groups for sham control, OBX control and positive controls namely imipramine (20 mg/kg), fluoxetine (30 mg/kg) and desipramine (15 mg/kg) were also maintained. Behavioral and physiological parameters in open field and elevated plus maze were recorded. HECM showed dose-dependent reversal of OBX-induced physiological effects such as reduction of body weight, body temperature,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antidepressant Activity; Commiphora MukulEngl; Guggul; Olfactory Bulbectomy Model.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000100041

Antidepressant-like effect of lead in adult mice
Provedor de dados: 56
Autores: Mantovani,M.; Matteussi,A.S.; Rodrigues,A.L.S.
It has been reported that lead can cause behavioral impairment by inhibiting the N-methyl-D-aspartate (NMDA) receptor complex. MK-801, a noncompetitive NMDA receptor antagonist, exhibits an antidepressant-like action in the forced swimming test. The purpose of the present study was to determine whether subacute lead exposure in adult male Swiss mice weighing 30-35 g causes an antidepressant-like action in a forced swimming test. Mice were injected intraperitoneally (ip) with 10 mg/kg lead acetate or saline daily for 7 consecutive days. Twenty-four hours after the last treatment, the saline and lead-treated mice received an injection of MK-801 (0.01 mg/kg, ip) or saline and were tested in forced swimming and in open-field tests. Immobility time was...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Lead acetate; Forced swimming test; Depression; Open-field.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999001200017

Antidiabetic activity evaluation of Onobrychis species on alloxan-induced diabetic mice
Provedor de dados: 60
Autores: Ozbek,Hanefi; Acikara,Ozlem Bahadir; Oz,Burcin Ergene; Ozbilgin,Serkan; Kirmizi,Neriman Ipek; Ozrenk,Bade Cevriye; Tekin,Mehmet; Saltan,Gulcin.
In the current study, four Onobrychis species, O. albiflora Hub.-Mor., O. argyrea Boiss. subsp. argyrea Boiss., O. galegifolia Boiss., and O. tournefortii (Willd.) Desv. were collected from Anatolia to be evaluated for their antidiabetic activities. Methanol water extracts of the aerial parts were used for experiments. An alloxan-induced diabetic mice test model was used. Phytochemical analysis of the tested extracts was investigated using the HPLC method. The highest activity was observed with treatment of O. albiflora aerial part extract. Significant decrements were detected in the blood glucose levels as follows: 180.83±47.48 and 252.83±50.47mg/dL at 100 mg/kg and 200 mg/kg doses of O. albiflora, respectively, when compared to the isotonic saline...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Onobrychis; Antidiabetic activity; Alloxan; Rutin; Isoquercetin; Phytochemical analysis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100504

Antidiabetic and antihyperlipidemic effects of Dillenia indica (L.) leaves extract
Provedor de dados: 60
Autores: Kumar,Sunil; Kumar,Vipin; Prakash,Om.
The present study was carried out to evaluate antidiabetic and antihyperlipidemic effects of Dillenia indica methanolic leaves extracts in streptozotocin induced diabetic Wistar rats by administering graded oral doses (250 and 500 mg/kg body weight) for 21 days. The extract showed significant antidiabetic activity (p&lt;0.001). Furthermore, the decreased body weight of rats was significantly improved after extract treatments. Daily oral treatment with the extract for 21 days to diabetic rats, also resulted in significant reduction in serum cholesterol, triglycerides and serum transaminase levels but HDL-cholesterol level was found to be improved (p&lt;0.001) as compared to the diabetic control group. The extract treatment also showed to enhance serum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dillenia indica/antidiabetic effects; Dillenia indica/experimental study; Dillenia indica/antihyperlipidemic effects; Dillenia indica/experimental study; Antidiabetics/experimental study; Serum transaminase; Serum cholesterol; HDL-cholesterol level.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502011000200018

Antidiabetic, antihyperlipidemic and antioxidant influences of the spice cinnamon ( Cinnamomum zeylanicumon ) in experimental rats
Provedor de dados: 60
Autores: Beji,Raja Serairi; Khemir,Sameh; Wannes,Wissem Aidi; Ayari,Khaoula; Ksouri,Riadh.
ABSTRACT The present study investigates the effect of cinnamon (Cinnamomum zeylanicumon) powder supplementation on glucose levels, lipid profiles, and oxidative stress parameters in alloxan-induced diabetic rats. Diabetes was induced in adult male Wistar rats via a single subcutaneous alloxan injection (15 mg/kg). Cinnamon powder was mixed with the standard feed of the rats in an amount of 5% for 28 consecutive days. Serum concentrations of total cholesterol (TC) and triglycerides (TG) were assayed at the end of the experimental period in all investigated groups. Anti-oxidative enzymes such as glutathione peroxidase (GPx), catalase (CAT) and superoxide dismutase (SOD) were sought in the serum and pancreas. Alloxan caused the fasting blood sugar level to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cinnamon/extract/antidiabetic activity; Cinnamon/extract/antihyperlipidemic activity; Cinnamon/extract/antioxidant activity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000200604

Anti-diabetic effect of betulinic acid on streptozotocin-nicotinamide induced diabetic male mouse model
Provedor de dados: 60
Autores: Birgani,Golshan Arzani; Ahangarpour,Akram; Khorsandi,Layasadat; Moghaddam,Hadi Fathi.
ABSTRACT Diabetes is a metabolic disease caused by abnormal insulin secretion or action. In the present study, the effects of betulinic acid (BA, a triterpene) are evaluated on glucose, α-amylase and plasma insulin levels, insulin resistance and the histopathology of pancreatic islets in streptozotocin-nicotinamide (STZ-NA) diabetic mice. Seventy adult male NMRI mice were randomly divided into seven groups: control, sham, diabetic, diabetic treated with BA (10, 20 and 40 mg/kg) and diabetic treated with metformin (200 mg/kg). Diabetes was induced in mice by intraperitoneal injection of streptozotocin 50 mg/kg after a dose of nicotinamide 120 mg/kg. Two weeks after treatment with BA, blood samples were collected for measuring glucose, α-amylase and insulin...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Betulinic acid; Diabetes; Mouse; Streptozotocin-nicotinamide.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000200621

Anti-diabetic effects of Campomanesia xanthocarpa (Berg) leaf decoction
Provedor de dados: 60
Autores: Vinagre,Anapaula Sommer; Rönnau,Ângela Della'Santa Rubio Origuella; Pereira,Sabrina Francisco; Silveira,Lídia Uliano da; Wiilland,Elenir de Fátima; Suyenaga,Edna Sayuri.
The objective of this research was to identify the effects of 3-week treatment of normal and streptozotocin-induced diabetic rats using a leaf decoction of Campomanesia xanthocarpa Berg. (20 g/L) on physiological, biochemical and histological parameters. Streptozotocin (STZ, 70 mg/kg in citrate buffer, pH 4.5) was administered IP to induce experimental diabetes one week prior to the treatment. STZ caused typical diabetic symptoms: polydypsia, polyuria, polyphagia, hyperglycemia, hypertriglyceridemia and histopathological modifications in the pancreas, liver and kidney. The treatment of diabetic rats using the decoction decreased blood glucose levels, inhibited hepatic glycogen loss, and prevented potential histopathological alterations in the pancreas and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campomanesia xanthocarpa/pharmacognosy; Diabetes Mellitus/experimental study; Hypoglycemic plant; Histology; Carbohydrate/metabolism; Lipid/metabolism.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000200002

Antifungal activities of thiosemicarbazones and semicarbazones against mycotoxigenic fungi
Provedor de dados: 64
Autores: Paiva,Rojane de Oliveira; Kneipp,Lucimar Ferreira; Goular,Carla Marins; Albuquerque,Mariana Almeida; Echevarria,Aurea.
Mycotoxigenic fungi can compromise the quality of food, exposing human and animal health at risk. The antifungal activity of eight thiosemicarbazones (1-8) and nine semicarbazones (9-17) was evaluated against Aspergillus flavus, A. nomius, A. ochraceus, A. parasiticus and Fusarium verticillioides. Thiosemicarbazones had MIC values of 125-500 µg/ml. The thiosemicarbazones 1 and 2 exerted fungistatic activity against Aspergillus spp., and thiosemicarbazone 2 exerted fungicidal activity against F. verticillioides. Compound 2 showed an iron chelating effect of 63%. The ergosterol content of A. parasiticus had a decrease of 28 and 71% for the 31.2 and 62.5 µg/ml concentrations of thiosemicarbazone 2 compared to the control. The obtained results of antifungal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aspergillus; Fusarium; Mycotoxicology; Thiosemicarbazones.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000600001

Antifungal activity and ultrastructural alterations in Pseudocercospora griseola treated with essential oils
Provedor de dados: 64
Autores: Hoyos,Julián Mauricio Ágredo; Alves,Eduardo; Rozwalka,Luciane Cristina; Souza,Elaine Aparecida de; Zeviani,Walmes Marques.
Pseudocercospora griseola, the etiologic agent of angular leaf spot of common bean (Phaseolus vulgaris), is an important disease in all bean-producing regions worldwide and may cause extremely high yield losses. The control of this disease is made more difficult by the pathogen's genetic variability and the inefficiency of fungicides. In this study, of 26 essential oils tested at different concentrations, 25 demonstrated efficiency in affecting the germination of strains 63-31 and 63-63 of the pathogen, reaching inhibition levels of between 80% and 100%. Cymbopogon citratus and Cymbopogon martinii inhibited conidia germination at all concentrations; Eugenia caryophyllata, Cinnamomum sp., Thymus vulgaris, Matricaria recutita, Cordia verbenacea, Origanum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Angular leaf spot; Transmission electron microscopy; Alternative control of plant disease.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000300002

Antifungal activity evaluation of Aloe arborescens dry extract against trichosporon genus yeasts
Provedor de dados: 3
Autores: Borba, João Ricardo Bueno de Morais; Costa, Flávia da da Silva; Ishikawa, Tati; Lemes, Raquel Maria Lima.
The objective of this study was to investigate the antifungal activity of Aloe arborescens dry extract against Trichosporon genus yeast species. Extraction was carried out by means of a longitudinal incision in fresh leaves, which were collected on a vat, and the total volume was frozen and subsequently lyophilized. Then, 40 mg of the dry extract was dissolved in DMSO by gentle inversion in order to obtain a solution whose concentration was 4000 µg mL-1. This solution became limpid and slightly yellowish because the pigment of the latex was attenuated. It was performed serial dilutions from 2,000 to 15.625 µg mL-1 with RPMI-1640 broth. There was already no pigment in the first dilution of 2000 μg mL-1. It was analyzed fifteen strains of Trichosporon spp.,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 21200009 e 21201030 medicinal plants; Susceptibility test; Opportunistic pathogens Micologia.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18883

Antifungal activity of acidic electrolyzed water against strawberry postharvest molds (Fragaria x ananassa Duch cv. Camarosa)
Provedor de dados: 109
Autores: Guerra-Sierra,Beatriz Elena; Sandoval-Meza,Adriana Ximena; García-Sanchéz,Liliana Torcoroma.
Abstract The aim of this word was to assess the in vitro antifungal activity of acidic electrolyzed water (AEW) and the required contact time to inhibit the development of post-harvest molds common in strawberry fruit. Ninety- four strawberry samples were used. A five-fold assay in a randomized design was carried out using standard inoculum of fungal conidia, which were subjected to an array of contact times and AEW concentrations, using a controlled agitation (120 r.p.m) at 23°C. The conidia treated with AEW were grown on potato dextrose agar and their germination was evaluated. Mycelial growth of the treated samples was measured and compared against conidia control samples treated with distilled water instead of AEW. Botrytis cinerea and Rhizopus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acidic electrolyzed water; Antifungal; Botrytis cinerea; Post-harvest molds; Rhizopus stolonifer.
Ano: 2019
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122019000200126

ANTIFUNGAL ACTIVITY OF Cirsium arvense EXTRACTS AGAINST PHYTOPATHOGENIC FUNGUS Macrophomina phaseolina
Provedor de dados: 87
Autores: BANARAS,S.; JAVAID,A.; SHOAIB,A.; AHMED,E.
ABSTRACT Leaves, stems, roots and inflorescence of the asteraceous weed Circium arvense were extracted in methanol for two weeks. Methanol was evaporated in a rotary evaporator. Different concentrations (1, 2, 3, 4 and 5%) of methanolic extracts were prepared, and their antifungal activities were studied against Macrophomina phaseolina, using malt extract broth as growth medium. In general, extracts of all plant parts showed antifungal activities to variable extents. The highest antifungal activity occurred due to methanolic extract of leaves, followed by stem and root extracts, resulting in 10-74%, 6-57% and 11-39% reduction in fungal biomass over control, respectively. Inflorescence extract showed the least antifungal activity, resulting in 2-30%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal activity; Asteraceous weed; Cirsium arvense; Macrophomina phaseolina.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100216

Antifungal activity of Crotalaria longirostrata Hook. &amp;amp; Arn. extracts against phytopathogen fungi from maize
Provedor de dados: 73
Autores: Cruz-Rodríguez,Rosa Isela; Meza-Gordillo,Rocío; Rodríguez-Mendiola,Martha Alicia; Arias-Castro,Carlos; Mancilla-Margalli,Norma Alejandra; Ávila-Miranda,Martín Eduardo; Culebro-Ricaldi,José Miguel; Gutiérrez-Miceli,Federico Antonio; Ruiz-Valdiviezo,Víctor Manuel; Ayora-Talavera,Teresa Del Rosario.
ABSTRACT In the present study, the hexane, acetone and methanol extracts of stem, branches and roots from Crotalaria longirostrata were evaluated for their antifungal activity against Fusarium sp., Fusarium verticillioides and Aspergillus flavus. The variables analyzed were inhibition halos, mycelial growth inhibition, sporulation and minimum inhibitory concentration. Phytochemical analysis revealed the presence of saponins, coumarins, anthrones, anthraquinones, flavonoids and alkaloids on different organic extracts. The hexane extract showed zones of inhibition between 6.3 and 10.5 mm. The mycelia growth and sporulation of A. flavus were reduced to 90% with methanol extract. The minimum inhibitory concentration values obtained with hexane extracts were...
Tipo: Journal article
Palavras-chave: Fungicidal properties; Extracts; Fusarium verticillioides; Fusarium sp.; Aspergillus flavus.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432017000100167

Antifungal activity of Gallesia integrifolia fruit essential oil
Provedor de dados: 58
Autores: Raimundo,Keila Fernanda; Bortolucci,Wanessa de Campos; Glamočlija,Jasmina; Soković,Marina; Gonçalves,José Eduardo; Linde,Giani Andrea; Colauto,Nelson Barros; Gazim,Zilda Cristiani.
ABSTRACT Gallesia integrifolia (Phytolaccaceae) is native to Brazil and has a strong alliaceous odor. The objective of this study was to identify the chemical composition of G. integrifolia fruit essential oil and evaluate fungicidal activity against the main food-borne diseases and food spoilage fungi. The essential oil was extracted by hydrodistillation and identified by GC–MS. From 35 identified compounds, 68% belonged to the organosulfur class. The major compounds were dimethyl trisulfide (15.49%), 2,8-dithianonane (52.63%) and lenthionine (14.69%). The utilized fungi were Aspergillus fumigatus, Aspergillus niger, Aspergillus ochraceus, Aspergillus versicolor, Penicillium funiculosum, Penicillium ochrochloron, Penicillium verrucosum var. cyclopium, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pau d’alho 2; 8-Dithianonane Lenthionine Aspergillus sp. Penicillium sp.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500229

Antifungal activity of metabolites of the endophytic fungus Trichoderma brevicompactum from garlic
Provedor de dados: 58
Autores: Shentu,Xuping; Zhan,Xiaohuan; Ma,Zheng; Yu,Xiaoping; Zhang,Chuanxi.
The endophytic fungus strain 0248, isolated from garlic, was identified as Trichoderma brevicompactum based on morphological characteristics and the nucleotide sequences of ITS1-5.8SITS2 and tef1. The bioactive compound T2 was isolated from the culture extracts of this fungus by bioactivity-guided fractionation and identified as 4β-acetoxy-12,13-epoxy-Δ9-trichothecene (trichodermin) by spectral analysis and mass spectrometry. Trichodermin has a marked inhibitory activity on Rhizoctonia solani, with an EC50 of 0.25 µgmL-1. Strong inhibition by trichodermin was also found for Botrytis cinerea, with an EC50 of 2.02 µgmL-1. However, a relatively poor inhibitory effect was observed for trichodermin against Colletotrichum lindemuthianum (EC50 = 25.60 µgmL-1)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoderma brevicompactum; Garlic; Endophytic fungus; Trichodermin; Antifungal activity.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000100036

ANTIFUNGAL ACTIVITY OF NEEM (Azadirachta indica: MELIACEAE) EXTRACTS AGAINST DERMATOPHYTES
Provedor de dados: 37
Autores: OSPINA SALAZAR,Daniel Iván; HOYOS SÁNCHEZ,Rodrigo Alberto; OROZCO SÁNCHEZ,Fernando; ARANGO ARTEAGA,Myrtha; GÓMEZ LONDOÑO,Luisa Fernanda.
In order to assess the antifungal activity of methanolic extracts from neem tree (Azadirachta indica A. Juss.), several bioassays were conducted following M38-A2 broth microdilution method on 14 isolates of the dermatophytes Trichophytonmentagrophytes, Trichophyton rubrum, Microsporum canis and Epidermophyton floccosum. Neem extracts were obtained through methanol-hexane partitioning of mature green leaves and seed oil. Furthermore, high performance liquid chromatography (HPLC) analyses were carried out to relate the chemical profile with their content of terpenoids, ofwidely known antifungal activity. The antimycotic Terbinafine served as a positive control. Results showed that there was total growth inhibition of the dermatophytes isolates at minimal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HPLC; Neem; Microbial sensitivity tests; Minimum inhibitory concentration; Terpenoids.
Ano: 2015
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000300017

Antifungal activity of topical microemulsion containing a thiophene derivative
Provedor de dados: 58
Autores: Guimarães,Geovani Pereira; Reis,Mysrayn Yargo de Freitas Araújo; Silva,Dayanne Tomaz Casimiro da; Mendonça Junior,Francisco Jaime Bezerra; Converti,Attílio; Pessoa Jr,Adalberto; Damasceno,Bolívar Ponciano Goulart de Lima; Silva,José Alexsandro da.
Fungal infections have become a major problem of worldwide concern. Yeasts belonging to the Candida genus and the pathogenic fungus Cryptococcus neoformans are responsible for different clinical manifestations, especially in immunocompromised patients. Antifungal therapies are currently based on a few chemotherapeutic agents that have problems related to effectiveness and resistance profiles. Microemulsions are isotropic, thermodynamically stable transparent systems of oil, water and surfactant that can improve the solubilization of lipophilic drugs. Taking into account the need for more effective and less toxic drugs along with the potential of thiophene derivatives as inhibitors of pathogenic fungi growth, this study aimed to evaluate the antifungal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal susceptibility; Cryptococcus neoformans; Microemulsion; Thiophene derivatives.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000200024

ANTIFUNGAL ACTIVITY SCREENING OF ANTARCTIC ACTINOBACTERIA AGAINST PHYTOPATHOGENIC FUNGI
Provedor de dados: 37
Autores: SANTOS,Andrés; NÚÑEZ-MONTERO,Kattia; LAMILLA,Claudio; PAVEZ,Mónica; QUEZADA-SOLÍS,Damián; BARRIENTOS,Leticia.
ABSTRACT The extreme weather conditions in the Antarctic have exerted selective pressures favoring differential features in bacteria to survive this untapped environment (i.e., antibiotic molecules). Notably, higher chances of antibiotic discovery from extremophiles have been proposed recently. Although new organic and environmentally friendly sources for helping in the control of plant pathogenic fungi are necessary, the information about anti-phytopathogenic applications of extremophile microorganisms from untapped environments is limited. In this study, we determined the antifungal effect of actinobacterial strains isolated from Antarctic soils and sediments. Co-culture inhibition assays and Minimum Inhibitory Concentration (MIC) determination revealed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonism; Antarctic bacteria; Antifungal; Extremophile; Plant pathogen.
Ano: 2020
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000200353

Antifungal and proteolytic activities of endophytic fungi isolated from Piper hispidum Sw
Provedor de dados: 58
Autores: Orlandelli,Ravely Casarotti; Almeida,Tiago Tognolli de; Alberto,Raiani Nascimento; Polonio,Julio Cesar; Azevedo,João Lúcio; Pamphile,João Alencar.
Endophytes are being considered for use in biological control, and the enzymes they secrete might facilitate their initial colonization of internal plant tissues and direct interactions with microbial pathogens. Microbial proteases are also biotechnologically important products employed in bioremediation processes, cosmetics, and the pharmaceutical, photographic and food industries. In the present study, we evaluated antagonism and competitive interactions between 98 fungal endophytes and Alternaria alternata, Colletotrichum sp., Phyllosticta citricarpa and Moniliophthora perniciosa. We also examined the proteolytic activities of endophytes grown in liquid medium and conducted cup plate assays. The results showed that certain strains in the assemblage of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonism; Competitive interaction; Dual culture; Cup plate; Protease.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000200359

ANTIFUNGAL POTENTIAL OF A BRASSICACEOUS WEED Sisymbrium irio AGAINST Macrophomina phaseolina
Provedor de dados: 87
Autores: JAVAID,A.; AFZAL,L.; SHOAIB,A.
ABSTRACT Macrophomina phaseolina, a soil-borne plant pathogen, has the ability to cause diseases in about 500 plant species. Unfortunately, so far no registered fungicide is available against this fungal pathogen. In the present study, different extracts of Sisymbrium irio, a weed of family Brassicaceae, were tested for evaluation of their antifungal activity against M. phaseolina. In screening bioassays, antifungal activity of methanolic extracts of 1% to 6% concentrations of different parts (leaf, stem, root and fruit) of the weed was assessed against the fungal pathogen. Methanolic leaf and root extracts significantly reduced fungal biomass up to 59% and 69% over control, respectively. Methanolic leaf and root extracts were further partitioned using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal activity; London rocket; Plant extracts.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100255

Antifungal potential of crude extracts of Trichoderma spp.
Provedor de dados: 49
Autores: Marques,Eder; Martins,Irene; Mello,Sueli Correa Marques de.
Abstract Antibiosis is the mechanism by which certain microorganisms respond to the presence of others, secreting compounds or metabolites capable of inhibiting or impeding their development. The crude extract of Trichoderma contains a mixture of secondary compounds, which may show antibiotic effect, and has been used for the prospect of this fungus for biological control and other industrial purposes. Faced with the increasing demand of agriculture for ecologically compatible alternatives for the management of diseases, this work aimed to investigate the spectrum of action of Non-Volatile Metabolites (NVMs) of Trichoderma isolates against different plant pathogenic fungi. The antagonistic potential of NVMs was evaluated through the incorporation method of...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Secondary metabolites; Antagonism; Inhibition of mycelial growth; Plant pathogenic fungi.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000100503

Antifungal treatment with carvacrol and eugenol of oral candidiasis in immunosuppressed rats
Provedor de dados: 55
Autores: Chami,N.; Chami,F.; Bennis,S.; Trouillas,J.; Remmal,A.
Carvacrol and eugenol, the main (phenolic) components of essential oils of some aromatic plants, were evaluated for their therapeutic efficacy in the treatment of experimental oral candidiasis induced by Candida albicans in immunosuppressed rats. This anticandidal activity was analyzed by microbiological and histopathological techniques, and it was compared with that of nystatin, which was used as a positive control. Microbiologically, carvacrol and eugenol significantly (p&lt;0.05) reduced the number of colony forming units (CFU) sampled from the oral cavity of rats treated for eight consecutive days, compared to untreated control rats. Treatment with nystatin gave similar results. Histologically, the untreated control animals showed numerous hyphae on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carvacrol; Eugenol; Experimental oral candidiasis; Antifungal activity; Essential oils.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000300005

Antigenotoxic effects of Mandevilla velutina (Gentianales, Apocynaceae) crude extract on cyclophosphamide-induced micronuclei in Swiss mice and urethane-induced somatic mutation and recombination in Drosophila melanogaster
Provedor de dados: 74
Autores: Silva,Regildo Márcio Gonçalves da; Sousa,Neila Coelho de; Graf,Ulrich; Spanó,Mário Antônio.
A Mandevilla velutina crude extract was investigated using the mouse micronucleus test (MNT) and the Drosophila melanogaster somatic mutation and recombination test (SMART) using standard (ST) and high bioactivation (HB) crosses. The MNT used 10 mg, 20 mg or 40 mg per 100 g of body weight (bw) of extract with and without 0.2 mg per 100 g bw peritoneal cyclophosphamide. There was no genotoxicity in the negative control or extract only groups and, compared to the cyclophosphamide control, there was a significant reduction in micronucleated polychromatic erythrocytes in all the groups given extract plus cyclophosphamide. For SMART larvae were fed 5 or 10 mg mL-1 of extract for seven days with and without 0.89 mg mL-1 of urethane given on day seven. The ST and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antigenotoxicity; Genotoxicity tests; Micronucleus assay; SMART; Wing spot test.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000400023

Anti-HIV therapy: pipeline approaches and future directions
Provedor de dados: 17
Autores: Lavkush Dwivedi; Mansi Shrivastava.
Human immunodeficiency virus (HIV), with about 30 million deaths and double infections (in developing countries), is an open challenge today for global scientists. Developing safe and effective measurements against it has become the prime need of hour. Though, putting it at health priority, various efforts like chemotherapy, vaccines and others are attempted globally over last decade. Consequently, highly active antiretroviral therapy was introduced but fails to completely block the viral replication due to drug resistance and various other severe side effects. The antigenic variability and lack of appropriate experimental models is the major obstacle in the development of an ever effective treatment against HIV. However, to overcome the present hurdles...
Tipo: Manuscript
Palavras-chave: Immunology.
Ano: 2011
URL: http://precedings.nature.com/documents/5540/version/1

Anti-hyperalgesic effect of electroacupuncture in a model of post-incisional pain in rats
Provedor de dados: 56
Autores: Oliveira,R.; Prado,W.A.
Electroacupuncture has been proposed to be a low cost and practical method that allows effective pain management with minimal collateral effects. In this study we have examined the effect of electroacupuncture against the hyperalgesia developed in a model of post-incisional pain in rats. A 1-cm longitudinal incision was made through the skin and fascia of the plantar region of the animal hind paw. Mechanical hyperalgesia in the incision was evaluated 135 min after the surgery with von Frey filaments. The tension threshold was reduced from 75 g (upper limit of the test) to 1.36 ± 0.36 g (mean ± SEM) in control rats. It is shown that a 15-min period of electroacupuncture applied 120 min after surgery to the Zusanli (ST36) and Sanyinjiao (SP6) points, but not...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Electroacupuncture; Post-incisional pain; Hyperalgesia; Naloxone.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000800012

Antihypertensive effects of angiotensin-(1-7)
Provedor de dados: 56
Autores: Chappell,M.C.; Iyer,S.N.; Diz,D.I.; Ferrario,C.M.
Accumulating evidence suggests that angiotensin-(1-7) (Ang-(1-7)) is an important component of the renin-angiotensin system and that the actions of the peptide may either contribute to or oppose those of Ang II. Ang-(1-7) can be converted directly from Ang I bypassing prerequisite formation of Ang II. Formation of Ang-(1-7) is under the control of at least three endopeptidases depending on the tissue compartment and include neprilysin, thimet oligopeptidase and prolyl oligopeptidase. Both neprilysin and thimet oligopeptidase are also involved in the metabolism of bradykinin and the atrial natriuretic peptide. Moreover, recent studies suggest that in addition to Ang I and bradykinin, Ang-(1-7) is an endogenous substrate for angiotensin converting enzyme....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Angiotensin-(1-7); Angiotensin II; Hypertension.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000900014

Anti-inflammatory activity and identification of the Verbena litoralis Kunth crude extract constituents
Provedor de dados: 60
Autores: Lima,Rachel de; Brondani,Juliana Calil; Dornelles,Rafaela Castro; Lhamas,Cibele Lima; Faccin,Henrique; Silva,Carine Viana; Dalmora,Sérgio Luiz; Manfron,Melânia Palermo.
Verbena litoralis is a plant popularly known as “gervãozinho-do-campo” in Portuguese. It is traditionally used for stomach, liver and gallbladder problems, and as an anti-inflammatory and anthelmintic. The goal of this study was to determine the chemical composition of the crude extract obtained from the aerial parts of V. litoralis by Ultra High Performance Liquid chromatography coupled with Mass Spectrometry in Tandem (UHPLC-MS/MS); assess the anti-inflammatory activity of ethyl acetate fraction and of crude extract; and verify liver, kidney and pancreas damage. In this study, the chemical composition of the extract was identified via UHPLC/MS/MS, assessing the anti-inflammatory activity of the crude extract and the acetate fraction in an induction model...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Verbena litoralis; UHPLC/MS; Flavonoids; Anti-inflammatory.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100540

Anti-inflammatory and antinociceptive effects of phonophoresis in animal models: a randomized experimental study
Provedor de dados: 56
Autores: Cardoso,L.C.P.; Pinto,N.B.; Nobre,M.E.P.; Silva,M.R.; Pires,G.M.; Lopes,M.J.P.; Viana,G.S.B.; Rodrigues,L.M.R.
The aim of this study was to evaluate the therapeutic effects of ultrasound (US)-mediated phonophoresis alone or in association with diclofenac diethylammonium (DCF) administered topically in animal models of inflammation. A pre-clinical, prospective, and randomized experimental study of quantitative and qualitative nature was carried out. Phonophoresis was performed using a therapeutic ultrasound apparatus in two distinct models of acute inflammation. Edema was induced by an intraplantar injection of carrageenan and measured by plethysmography. The Hargreaves test was used to evaluate the antinociceptive activity and investigate the action of phonophoresis on tumor necrosis factor (TNF)-α production. A histological analysis with hematoxylin-eosin was used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phonophoresis; Ultrasonic therapy; Inflammation; Nociception; Physiotherapy.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000200603

Anti-inflammatory and healing action of oral gel containing borneol monoterpene in chemotherapy-induced mucositis in rats ( Rattus norvegicus )
Provedor de dados: 60
Autores: Nascimento-Júnior,Braz José do; Brito,Lucas de Souza; Barros,Walquíria Nunes; Gonçalves,Daniela Marques; Matos,Luana de Souza; Nascimento,Cínthia Reyjane Borges; Ribeiro,Luciano Augusto de Araújo; Lima,Ricardo Santana de; Silva-Júnior,René Geraldo Cordeiro; Reis,Sílvio Alan Gonçalves Bomfim; Gonçalves,Talita Mota; Amorim,Elba Lúcia Cavalcanti de.
ABSTRACT The aim of this study was to investigate the effect of gels containing the monoterpene borneol in induced oral mucositis using an animal model. Gels were prepared with borneol at 1.2% and 2.4% (w/w). Oral mucositis was induced by administration of three doses of 5-fluorouracil (30 mg/kg, i.p.) and injury with acetic acid (50%, v/v) soaked in filter paper applied to right cheek mucosa for 60s. Four subgroups comprising 12 animals each were formed. Six animals from each group were sacrificed at days seven and fourteen after oral mucositis induction. Mucous samples were processed and stained with hematoxylin-eosin and Masson’s Trichrome. The semiquantitative evaluation involved observation of inflammatory parameters. ImageJ® software was used in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemotherapy; Oral gel/Borneol monoterpene/effects; Oral gel/Borneol monoterpene/action anti-inflammatory; Oral gel/Borneol monoterpene/healing action; Bornyl alcohol/effects; Palliative care.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000300604

Anti-inflammatory Effect of Silymarin on Ovarian Immunohistochemical Localization of TNF- Associated with Systemic Inflammation in Polycystic Ovarian Syndrome
Provedor de dados: 77
Autores: Kayedpoor,Parvin; Mohamadi,Shima; Karimzadeh-Bardei,Latifeh; Nabiuni,Mohammad.
Tumor necrosis factor alpha (TNF-a) and interleukin (IL)-6, are prominent mediators of inflammation and have been confirmed to be elevated in at least a subgroup of women with polycystic ovary syndrome (PCOS). In this study, the effects of Silymarin (SLM) on the expression TNF-a, IL-6, CRP and symptoms of PCOS were studied. In this research, PCOS was induced by injection of Estradiol Valerate. PCOS rats were divided into control and experimental groups received intraperitoneal injection SLM extract daily. After syndrome induction, ovaries were collected for histological and immunohistochemical evaluations. Serum IL-6 was detected by the ELISA kit. The results indicated the significant reduction in inflammatory markers and significant changes follicular...
Tipo: Journal article
Palavras-chave: Immunohistochemistry; Inflammation; Silybum Marianum extract.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200054

Anti-leishmania antibodies in cerebrospinal fluid from dogs with visceral leishmaniasis
Provedor de dados: 56
Autores: Lima,V.M.F.; Gonçalves,M.E.; Ikeda,F.A.; Luvizotto,M.C.R.; Feitosa,M.M.
Visceral leishmaniasis in Brazil is caused by Leishmania (Leishmania) chagasi and the dog is its most important reservoir. The clinical features in dogs include loss of weight, lymphadenopathy, renal failure, skin lesions, fever, hypergammaglobulinemia, hepatosplenomegaly, anemia, and, rarely, neurological symptoms. Most infected animals develop active disease, characterized by high anti-leishmania antibody titers and depressed lymphoproliferative ability. Antibody production is not primarily important for protection but might be involved in the pathogenesis of tissue lesions. An ELISA test was used to determine if there is an association between neurological symptoms and the presence of anti-L. chagasi antibodies in cerebrospinal fluid (CSF). Thirty serum...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Leishmania (Leishmania) chagasi; Visceral leishmaniasis; Cerebrospinal fluid; Dogs; Antibodies.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000400010

Antimicrobial activities of six essential oils commonly used as condiments in Brazil against Clostridium perfringens
Provedor de dados: 58
Autores: Radaelli,Marcela; Silva,Bárbara Parraga da; Weidlich,Luciana; Hoehne,Lucélia; Flach,Adriana; Costa,Luiz Antonio Mendonça Alves da; Ethur,Eduardo Miranda.
Abstract Despite recent advances in food production technology, food-borne diseases (FBD) remain a challenging public health concern. In several countries, including Brazil, Clostridium perfringens is among the five main causative agents of food-borne diseases. The present study determines antimicrobial activities of essential oils of six condiments commonly used in Brazil, viz., Ocimum basilicum L. (basil), Rosmarinus officinalis L. (rosemary), Origanum majorana L. (marjoram), Mentha × piperita L. var. Piperita (peppermint), Thymus vulgaris L. (thyme) and Pimpinella anisum L. (anise) against C. perfringens strain A. Chemical compositions of the oils were determined by GC–MS (gas chromatography–mass spectrometry). The identities of the isolated compounds...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food-borne disease; Antimicrobial activity; Clostridium perfringens; Spices; Essential oils.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000200424

Antimicrobial activity and acetylcholinesterase inhibition by extracts from chromatin modulated fungi
Provedor de dados: 58
Autores: Lima,Matheus Thomaz Nogueira Silva; Santos,Larissa Batista dos; Bastos,Rafael Wesley; Nicoli,Jacques Robert; Takahashi,Jacqueline Aparecida.
ABSTRACT Major health challenges as the increasing number of cases of infections by antibiotic multiresistant microorganisms and cases of Alzheimer's disease have led to searching new control drugs. The present study aims to verify a new way of obtaining bioactive extracts from filamentous fungi with potential antimicrobial and acetylcholinesterase inhibitory activities, using epigenetic modulation to promote the expression of genes commonly silenced. For such finality, five filamentous fungal species (Talaromyces funiculosus, Talaromyces islandicus, Talaromyces minioluteus, Talaromyces pinophilus, Penicillium janthinellum) were grown or not with DNA methyltransferases inhibitors (procainamide or hydralazine) and/or a histone deacetylase inhibitor...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial activity; Acetylcholinesterase inhibition; Epigenetic modulation; Penicillium sp.; Talaromyces sp.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000100169

Antimicrobial Activity and Phytochemical Screening of Euphorbia helioscopia
Provedor de dados: 87
Autores: WAHEED,K.; MUHAMMAD,S.K.; SHOMAILA,A.; MUHAMMAD,Z.; IZHAR,U.; ULLAH,S.
ABSTRACT: Medicinal Plants have been used throughout the world by human beings as a drug and remedies for various diseases since time immemorial. A study was planned to count into the antimicrobial activity and phytochemical screening of Euphorbia helioscopia. The plants were gathered and tested against some standard strains and some human pathogenic microorganisms i.e Escherichia coli, Bacillus Subtilis, Staphylococcus aureus, Klebsiella pneumoniae, Salmonella typhi, Pseudomonas aeruginosa and three fungal strain Trichoderma, R hizopus nigricans, Aspergillus niger. The concentrations of extracting samples (500 and 1,000 mg mL-1) were used against pathogens. Ciprofloxacin was used as positive control in case of bacterial strains and Colfrimazol was used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ayurvedic; Euphorbiaceae; Labeena; Secondary metabolites; Indigenous.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100211

Antimicrobial activity and potential use of monoterpenes as tropical fruits preservatives
Provedor de dados: 58
Autores: Garcia,Roxana; Alves,Eliomara S.S.; Santos,Mirella P.; Aquije,Glória M.F. Viégas; Fernandes,A. Alberto R.; Santos,Reginaldo B. dos; Ventura,Jose A.; Fernandes,Patricia M.B.
Banana, papaya and pineapple are the most consumed tropical fruits in the world, being Brazil one of the main producers. Fungi Colletotrichum musae, Colletotrichum gloeosporioides and Fusarium subglutinans f.sp. ananas cause severe post harvest diseases and losses in fruits quality. The aim of this work was to evaluate the effectiveness of five monoterpenes to inhibit the mycelial growth and conidia germination of these three phytopathogens. The monoterpenes citral, citronellal, L-carvone, isopullegol and a-pinene were diluted in ethanol to final concentrations from 0.2 to 1%. All monoterpenes were found to inhibit the growth of the three studies fungi in a dose-dependent manner. Citral was the most effective of the oils tested and showed potent fungicidal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biocontrol; Essential oils; Banana; Papaya; Pineapple; Plant diseases.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000100032

Antimicrobial activity of autoclaved and non autoclaved copaiba oil on Listeria monocytogenes
Provedor de dados: 65
Autores: Pieri,Fábio Alessandro; José,Raphaela Mansur; Galvão,Newton Nascentes; Nero,Luis Augusto; Moreira,Maria Aparecida Scatamburlo.
The aim of this study was to evaluate the antimicrobial effect of different copaiba oil concentrations against the growth of Listeria monocytogenes, and analyze differences in inhibition of microorganisms with autoclaved and non autoclaved oil. This study provided an agar diffusion test with six isolates of bacteria and six different concentrations of autoclaved or non autoclaved copaiba oil and a negative control. The results showed sensitivity of five L. monocytogenes isolates related to the 10% autoclaved solution of copaiba oil. Four strains also showed sensitivity to the 5% autoclaved solution and one to 2.5% autoclaved solution. The 10% non autoclaved oil solution showed growth inhibition only for two strains. These results had pointed the 10%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytotherapics; Copaifera; Antimicrobial drugs; Listeria monocytogenes.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000800020

Antimicrobial activity of enterocin obtained from Enterococcus durans on Shiga-like toxin-producing Escherichia coli
Provedor de dados: 65
Autores: Tosoni,Natara Favaro; Perini,Hugo Felix; Terra,Márcia Regina; Katsuda,Marly Sayuri; Furlaneto,Márcia Cristina; Maia,Luciana Furlaneto.
ABSTRACT:  Shiga-like toxin-producing Escherichia coli (STEC) is an important source of food contamination that presents risks to human health. Several industrial food processes eliminate this microorganism; however, these processes can alter the characteristics of the product. Alternative methods of preservation have been identified as an option to control these foodborne pathogens. The purpose of this study was to evaluate the action of bacteriocins produced by Enterococcus durans MF5 in STEC cells. Cell-free supernatant (CFS) containing enterocins from the MF5 isolate was tested over different time points (6, 18, and 24 h). Enterocins present in the crude CFS showed inhibition against STEC at all time points. In the investigation of cell integrity,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteriocin; Spot-on lawn assay; STEC.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000900452

Antimicrobial activity of essential oils from Lippia alba, Lippia sidoides, Cymbopogon citrates, Plectranthus amboinicus, and Cinnamomum zeylanicum against Mycobacterium tuberculosis
Provedor de dados: 65
Autores: Mota,Aquiles Paulino Peres; Dantas,João Carlos Pinheiro; Frota,Cristiane Cunha.
ABSTRACT: The rise in cases of antibiotic-resistant Mycobacterium tuberculosis has become a major obstacle to the effective control of tuberculosis (TB) worldwide. Essential oils (EO) are complex mixtures that may contain between 20 and 60 components, with two or three major compounds at relatively high concentrations (20-70%) that are responsible for their pharmacological properties. The objective of this study was to assess the antimicrobial activity of the EOs, bushy lippia (Lippia alba), rosemary pepper (Lippia sidoides), lemon grass (Cymbopogon citratus), Mexican mint or Indian borage (Plectranthus amboinicus), and true cinnamon (Cinnamomum zeylanicum), against Mycobacterium tuberculosis H37Rv. Chemical characterization of the EOs was performed by gas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anti-bacterial agent; Essential oils; Mycobacterium tuberculosis; Lippia alba; Lippia sidoides; Cymbopogon citrates; Plectranthus amboinicus; Cinnamomum zeylanicum.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600453

Antimicrobial activity of Finnish organic honeys against human pathogenic bacteria
Provedor de dados: 21
Autores: Obey, Jackie; Ngeiywa, Moses; von Wright, Atte; Kauhanen, Jussi; Tikkanen-Kaukanen, Carina.
Increasing pathogen resistance to antimicrobials threatens every human-being globally. Alternative methods and solutions for fighting against infectious diseases are urgently needed. Honey has been used as a traditional medicine for centuries and its antimicrobial properties have been revealed in several in vitro studies against wide variety of human pathogenic bacterial species, including antibiotic resistant strains. Research on antimicrobial activity of organic honeys is a novel approach and may lead to unknown antimicrobial mechanisms and factors. It also represents sustainable development.  In the present study we show that Finnish organic honeys have antimicrobial activity against the growth of human pathogenic organisms E. coli, S. typhi, P....
Tipo: Conference paper, poster, etc.
Palavras-chave: Food security; Food quality and human health.
Ano: 2017
URL: http://orgprints.org/31387/1/JObey%20NJF17.docx

Antimicrobial activity of some medicinal plants from the cerrado of the central-western region of Brazil
Provedor de dados: 58
Autores: Violante,Ivana Maria Póvoa; Hamerski,Lidilhone; Garcez,Walmir Silva; Batista,Ana Lucia; Chang,Marilene Rodrigues; Pott,Vali Joana; Garcez,Fernanda Rodrigues.
Ethanol extracts from six selected species from the Cerrado of the Central-Western region of Brazil, which are used in traditional medicine for the treatment of infectious diseases and other medical conditions, namely Erythroxylum suberosum St. Hil. (Erythroxylaceae), Hyptis crenata Pohl. ex Benth. (Lamiaceae), Roupala brasiliensis Klotz. (Proteaceae), Simarouba versicolor St. Hil. (Simaroubaceae), Guazuma ulmifolia Lam. (Sterculiaceae) and Protium heptaphyllum (Aubl.) March. (Burseraceae), as well as fractions resulting from partition of these crude extracts, were screened in vitro for their antifungal and antibacterial properties. The antimicrobial activities were assessed by the broth microdilution assay against six control fungal strains, Candida...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal; Antibacterial; Antimicrobial; Artemia salina; Cerrado.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400009

Antimicrobial and antioxidant activities of cactus polyphenols extract on seafood preservation
Provedor de dados: 5
Autores: Besbes, Nadia; Joffraud, Jean-jacques; Ben Khemis, Ines; Amri, Mohamed; Sadok, Saloua.
The present work investigated the antimicrobial and antioxidant activities of polyphenols extracted from cactus (Opuntia ficus indica) fruit-peels on sardine fillets during refrigerated storage. Biochemical, microbiological and sensorial indicators of treated sardine fillets; were studied comparatively to control lot. Microbial communities were characterized using phenotyping and molecular identification of bacterial isolates; and culture-independent method (PCR-TTGE) for fingerprinting of bacterial DNA extracted from fillets. A principal component analysis (PCA) of all the studied descriptors and variables revealed that discrimination along first principal component (PC1) was mainly correlated positively with peroxidation level and storage time but...
Tipo: Text
Palavras-chave: Cactus polyphenols; PCR-TTGE; Biochemical indicators; PCA analysis; Sardine fillets; Sensorial analysis.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00368/47881/47897.pdf

Antimicrobial and aromatic edible coating on fresh-cut pineapple preservation
Provedor de dados: 65
Autores: Bitencourt,Raphaela Gabri; Possas,Arícia Mara Melo; Camilloto,Geany Peruch; Cruz,Renato Souza; Otoni,Caio Gomide; Soares,Nilda de Fátima Ferreira.
The present research aimed to develop an edible coating incorporated with mint essential oil, evaluate its effectiveness in inhibiting in vitro microbial development, and improve both quality and shelf-life of fresh-cut pineapple. Mint essential oil-containing edible coatings showed in vitro antimicrobial efficiency against Escherichia coli and Salmonella Enteritidis. Titratable acidity, pH, and texture were not affected (P&gt;0.05) by coating or storage time. Mass loss was not higher than 1.0% after the 6th day of storage. No effect of storage time and coating on total soluble solids was observed. Mint essential oil-containing coatings inhibited the growth of yeasts and molds in fresh-cut pineapple. Compared to uncoated and control-coated samples, mint...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Minimal processing; Edible coating; Essential oil; Pineapple.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000600027

Antimicrobial effect of copper surfaces on bacteria isolated from poultry meat
Provedor de dados: 58
Autores: Parra,Angel; Toro,Magaly; Jacob,Ricardo; Navarrete,Paola; Troncoso,Miriam; Figueroa,Guillermo; Reyes-Jara,Angélica.
Abstract Poultry meat is a food product that usually carries high rates of microbial contamination, including foodborne pathogens. The poultry industry has established different systems to minimize these hazards. In recent years, extensive literature has demonstrated the antimicrobial activity of different contact surfaces made of copper to effectively reduce microbial loads. The aim of the present study was to evaluate the antibacterial effect of copper surfaces on the transmission of two foodborne pathogens – Salmonella enterica and Listeria monocytogenes – and a poultry native microbiota bacterial species – Enterobacter cloacae. We also evaluated the impact of the poultry meat matrix on the antimicrobial activity of a copper surface. Our results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial copper-alloys; Foodborne pathogens; Salmonella; Listeria monocytogenes; Poultry meat.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500113

Antimicrobial effect of turmeric (Curcuma longa) on chicken breast meat contamination
Provedor de dados: 89
Autores: Lourenço,TC; Mendonça,EP; Nalevaiko,PC; Melo,RT; Silva,PL; Rossi,DA.
The aim of this study was to evaluate the efficacy of turmeric (Curcuma longa), also known in Brazil as saffron, on the reduction of Staphylococcus aureus and Escherichia coli counts in chicken meat. Forty breast meat samples were divided in two groups (A and B). In group A, 10³-10(4)E. coli (ATCC 25922) cells were inoculated and group B samples were inoculated with 10(4)-10(5)S. aureus (ATCC 9801) cells, after which each group was divided in three samples. The first sample was analyzed immediately after inoculation. The second sample (control group) was stored at 4 ºC for 48 hours and turmeric at 1% (w/w) was added to the third sample, which was homogenized and then stored under the same conditions as the second sample. E. coli and S. aureus were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Turmeric; Bacterial growth; Escherichia coli; Staphylococcus aureus.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200002

Antimicrobial effects of plant defence peptides expressed by bovine endothelial cells on intracellular pathogens
Provedor de dados: 69
Autores: Loeza-Ángeles,Heber; López-Meza,Joel E; Ochoa-Zarzosa,Alejandra.
Background: The actions of plant antimicrobial peptides (PAP) against intracellular pathogens are poorly known. It has been reported that wheat puroindolines show antibacterial activity against Staphylococcus epidermidis endocyted by macrophages. In this work, we evaluated the intracellular antimicrobial activity of PAP gamma-thionin and thionin Thi2.1 produced by bovine endothelial cells against intracellular Staphylococcus aureus and Candida albicans. We used three host-pathogen models: 1) bovine mammary epithelial cells (BMEC)-S. aureus, 2) bovine endothelial cells (BEC)-S. aureus and 3) BEC-C. albicans, and evaluated the effect of conditioned media from BEC producers of PAP (gamma-thionin and thionin Thi2.1). Results: In the first model, conditioned...
Tipo: Journal article
Palavras-chave: Antimicrobial peptides; Arabidopsis thaliana thionin; Capsicum chinense gamma-thionin; Candida albicans; Intracellular pathogens; Staphylococcus aureus.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000500001

Antimicrobial Peptides and Ectosymbiotic Relationships: Involvement of a Novel Type IIa Crustin in the Life Cycle of a Deep-Sea Vent Shrimp
Provedor de dados: 5
Autores: Le Bloa, Simon; Boidin-wichlacz, Céline; Cueff-gauchard, Valerie; Rosa, Rafael Diego; Cuvillier-hot, Virginie; Durand, Lucile; Methou, Pierre; Pradillon, Florence; Cambon-bonavita, Marie-anne; Tasiemski, Aurélie.
The symbiotic shrimp Rimicaris exoculata dominates the macrofauna inhabiting the active smokers of the deep-sea mid Atlantic ridge vent fields. We investigated the nature of the host mechanisms controlling the vital and highly specialized ectosymbiotic community confined into its cephalothoracic cavity. R. exoculata belongs to the Pleocyemata, crustacean brooding eggs, usually producing Type I crustins. Unexpectedly, a novel anti-Gram-positive type II crustin was molecularly identified in R. exoculata. Re-crustin is mainly produced by the appendages and the inner surfaces of the cephalothoracic cavity, embedding target epibionts. Symbiosis acquisition and regulating mechanisms are still poorly understood. Yet, symbiotic communities were identified at...
Tipo: Text
Palavras-chave: Extreme; Hydrothermal; Symbiosis; Host-microbe interaction; Invertebrate immunity; Crustacean.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00643/75534/76413.pdf

Antimicrobial Resistance and Molecular Characterization of Salmonella Enterica Serotypes Isolated from Poultry Sources in Brazil
Provedor de dados: 89
Autores: Borges,KA; Furian,TQ; Souza,SN; Salle,CTP; Moraes,HLS; Nascimento,VP.
ABSTRACT Salmonella spp. remain among the most important agents of foodborne diseases worldwide. The importance of Salmonella spp. in public health is linked to their wide range of antimicrobial resistance and to their pathogenicity and virulence in both human and animal hosts. The aim of this study was to determine the antimicrobial resistance patterns for Salmonella serotypes isolated from poultry sources in Brazil and to detect virulence-associated genes and verify their association with specific serotypes. A total of 163 strains of Salmonella enterica isolated from poultry sources in Southern Brazil were selected, and each belonged to one of 11 different serotypes. They were tested against ten antibiotics and examined for the presence of 26...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Antibiotic susceptibility; Genetic virulence; Chicken; Salmonellosis; Serovars.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100500

Antimicrobial resistance and plasmid replicons in Yersinia enterocolitica strains isolated in Brazil in 30 years
Provedor de dados: 55
Autores: Frazão,Miliane R.; Andrade,Leonardo N.; Darini,Ana L.C.; Falcão,Juliana P.
Abstract Some studies evaluated the resistance profile of the Y. enterocolitica strains isolated in diverse countries. However, in Brazil the isolation and the study of Y. enterocolitica are not common and therefore information about the antimicrobial resistance profile of this species in this country is scarce. Therefore, the aim of this study was to evaluate the antimicrobial resistance of Y. enterocolitica of biotypes 1A, 2 and 4 isolated from clinical and non-clinical sources between 1979 and 2012, in Brazil. This study showed that some Yersinia enterocolitica of different biotypes remain susceptible to antimicrobials used for gastroenteritis treatment. Moreover, neither acquired resistance genes nor diversity of plasmids replicons were found; however,...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Yersinia enterocolitica; Resistance profile; Plasmid replicon.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000400477

Antimicrobial resistance, diarrheagenic and avian pathogenic virulence genes in Escherichia coli from poultry feed and the ingredients
Provedor de dados: 45
Autores: Rossato,J.M.; Brito,B.G.; Kobayashi,R.K.T.; Koga,V.L.; Sarmiento,J.J.P.; Nakazato,G.; Lopes,L.F.D.; Balsan,L.A.G.; Grassotti,T.T.; Brito,K.C.T.
ABSTRACT Diarrheagenic (DEC) and avian pathogenic Escherichia coli (APEC) are associated with intestinal and extra-intestinal infections (ExPEC), respectively. We aimed to analyze the antimicrobial susceptibility, gene encoding virulence factors associated to DEC and APEC, and phylogenetic classification in E. coli isolated from 320 samples of feed and ingredients. Antimicrobial susceptibility was performed using the disk diffusion method and Multiple Antibiotic Resistance (MAR) Index and Multi-Drug Resistance (MDR) were calculated. Phylogenetic classification was performed on samples harboring DEC and/or APEC virulence-associated genes. A total of 110 E. coli strains were isolated in 15% (49/320) of the evaluated inputs (n=13 vegetable meal; n=33 animal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Poultry production; Animal feed; Antimicrobials; Virulence; Resistance.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000601968

Antimicrobial resistance in Enterobacteriaceae in Brazil: focus on β-lactams and polymyxins
Provedor de dados: 58
Autores: Sampaio,Jorge Luiz Mello; Gales,Ana Cristina.
ABSTRACT During the last 30 years there has been a dissemination of plasmid-mediated β-lactamases in Enterobacteriaceae in Brazil. Extended spectrum β-lactamases (ESBL) are widely disseminated in the hospital setting and are detected in a lower frequency in the community setting. Cefotaximases are the most frequently detected ESBL type and Klebsiella pneumoniae is the predominant species among ESBL producers. Klebsiella pneumoniae carbapenemase-producing Enterobacteriaceae became widely disseminated in Brazil during the last decade and KPC production is currently the most frequent resistance mechanism (96.2%) in carbapenem resistant K. pneumoniae. To date KPC-2 is the only variant reported in Brazil. Polymyxin B resistance in KPC-2-producing K. pneumoniae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ESBL; KPC; NDM; Extended spectrum β-lactamases; New Delhi metallo-β-lactamase; Klebsiella pneumoniae carbapenemase; Polymyxin B; Colistin; Antimicrobial resistance; Carbapenemases; Brazil; Enterobacteriaceae.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000500031

Antimicrobial Resistance in Salmonella Serovars Isolated From an Egg-Producing Region in Brazil
Provedor de dados: 89
Autores: Benevides,VP; Rubio,MS; Alves,LBR; Barbosa,FO; Souza,AIS; Almeida,AM; Casas,MRT; Guastalli,EAL; Soares,NM; Berchieri Jr,A.
ABSTRACT Fowl paratyphoid infections are caused by different Salmonella serovars that can affect a wide range of hosts. Due to its complex epidemiology, Salmonella serovar identification is crucial for the development and implementation of monitoring and control programs in poultry farms. Moreover, the characterization of the antimicrobial resistance profiles of Salmonella strains isolated from livestock is relevant to public health because they are a common causative agent of foodborne diseases. The objective of this study was to investigate the presence of Salmonella spp. and to identify the antimicrobial resistance profiles of strains isolated in the midwestern region of São Paulo state, which accounts for the highest production of table eggs in Brazil....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial susceptibility; Foodborne disease; Salmonellosis; Multi-drug resistance; Public health.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000200319

Antimicrobial susceptibility among Enterococcus isolates from the city of Porto Alegre, RS, Brazil
Provedor de dados: 58
Autores: d'Azevedo,Pedro Alves; Dias,Cícero Armídio Gomes; Lemos,Sibele Krebs; Bittencourt,José Augusto Ferreira; Teixeira,Lúcia Martins.
Resistance to several classes of antimicrobial agents is a remarkable characteristic of enterococcal strains increasingly reported worldwide. Information about strains isolated in the southern region of Brazil is still limited. In this study, a total of 455 consecutive enterococcal isolates recovered from patients living in Porto Alegre, Brazil, were identified at species level and evaluated for their antimicrobial susceptibilities by agar diffusion testing. The most frequent species was E. faecalis (92.8%), followed by E. faecium (2.9%), E. gallinarum (1.5%), E. avium (1.1%), E. hirae (0.7%), E. casseliflavus (0.4%), E. durans (0.4%), and E. raffinosus (0.2%). According to the results of disk tests 62.0% of the strains were resistant to tetracycline,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enterococcal; Antimicrobial susceptibility; Resistance.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000200005

Antimicrobial susceptibility in intensive care units: MYSTIC Program Brazil 2002
Provedor de dados: 55
Autores: Mendes,Caio; Oplustil,Carmen; Sakagami,Elsa; Turner,Philip; Kiffer,Carlos.
OBJECTIVE: Establish the susceptibility pattern of Gram-negative bacteria causing infections in ICU patients, MYSTIC Program Brazil 2002. MATERIAL AND METHODS: Gram-negative bacteria (n = 503) causing nosocomial infections were collected at seven Brazilian centers. The central laboratory confirmed the identification and performed the susceptibility tests by E-test methodology (AB Biodisk, Solna, Sweden) for meropenem, imipenem, ciprofloxacin, ceftazidime, cefepime, cefotaxime, piperacillin/tazobactam, gentamicin, and tobramycin. Interpretation criteria used were according to National Committee for Clinical Laboratory Standards (NCCLS). RESULTS: Pseudomonas aeruginosa (33%) was the most frequently isolated, followed by A. baumannii (17.1%), K. pneumoniae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drug resistance; Bacterial; Microbial sensitivity tests; Infection control; Carbapenems.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000100008

Antimicrobial susceptibility of Gram-negative bacteria in Brazilian hospitals: the MYSTIC Program Brazil 2003
Provedor de dados: 55
Autores: Kiffer,Carlos; Hsiung,Andre; Oplustil,Carmen; Sampaio,Jorge; Sakagami,Elsa; Turner,Philip; Mendes,Caio.
Establish the susceptibility pattern of Gram-negative bacteria causing infections in ICU patients, MYSTIC Program Brazil 2003. Gram-negative bacteria (n = 1,550) causing nosocomial infections were collected at 20 Brazilian centers. The central laboratory confirmed the identification and performed the susceptibility tests by Etest methodology (AB Biodisk, Solna, Sweden) for meropenem, imipenem, ciprofloxacin, ceftazidime, cefepime, cefotaxime, piperacillin/tazobactam, gentamicin, and tobramycin. Interpretation criteria used were according to National Committee for Clinical Laboratory Standards (NCCLS). Pseudomonas aeruginosa (30.3%) was the most frequent isolate, followed by E. coli (18.6%), Klebsiella pneumoniae (16.9%), Acitenobacter baumannii (8.8%), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drug resistance; Bacterial; Microbial sensitivity tests; Infection control; Carbapenems.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702005000300004

Antimicrobial susceptibility patterns among bacteria isolated from intensive care units of the largest teaching hospital at the northwest of Iran
Provedor de dados: 60
Autores: Hamishehkar,Hadi; Shadmehr,Pegah; Mahmoodpoor,Ata; Mashayekhi,Simin Ozar; Entezari-Maleki,Taher.
ABSTRACT This study was conducted to determine the antimicrobial susceptibility patterns among common pathogens in the intensive care units (ICUs) of a university hospital in northwestern Iran. A retrospective study was done on laboratory records of patients with nosocomial infection who were admitted to five ICUs of Imam Reza Hospital during a 21-month period from March 2010 to January, 2012. A total number of 556 isolates from 328 patients were evaluated. The most common sites of infections included respiratory (51.7%), urinary (24.8%), and blood (10.4%). The most frequently isolated microorganisms were Enterobacter aerogenes (50.6%) followed by Escherichia coli (16.7%) and Pseudomonas aeruginosa (7.5%). Staphylococcus aureus was the most frequent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intensive care units/anti-infective agents/cross infection; Hospital University/Iran.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502016000300403

Antimicrobiales para el control de hongos en una dieta artificial y su impacto en la supervivencia y reproducción de Spodoptera frugiperda (J. E. Smith).
Provedor de dados: 32
Autores: Zambrano Gutiérrez, Jorge.
Las dietas artificiales son importantes para establecer crías de insectos bajo condiciones controladas de laboratorio. Sin embargo, en estas condiciones también pueden la contaminación de las dietas con hongos. Para evitar la contaminación de las dietas de insectos se utilizan antimicrobiales que en algunas ocasiones ya están presentes en la dieta o bien se deben agregar a ésta. En el laboratorio de Toxicología de Insecticidas la dieta artificial BioServ Inc., Frenchtown, NJ. se contaminaba con hongos. Así mismo se observó que al controlar la contaminación, ésta se podría utilizar en la cría masiva de Spodoptera frugiperda. El objetivo general del presente trabajo fue estimar la supervivencia, reproducción, duración del ciclo de vida, peso de larvas de...
Palavras-chave: Contaminación; Dietas artificiales; Hongos; Cría masiva; Control; Antimicrobiales; Sobrevivencia; Reproducción; Contamination; Artificials diets; Fungi; Mass rearing; Control; Antimicrobials; Survival; Reproduction; Entomología y Acarología; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/2034

Antimicrobials and renal failure in neutropenic patients
Provedor de dados: 55
Autores: França,Monique Sedlmaier; Lima,Stella Sala Soares; Duclou,Caroline Naback; Goulart,Eugênio Marcos Andrade; Romanelli,Roberta Maia de Castro.
Antimicrobial treatment is often indicated to neutropenic patients. Although renal failure is a common complication of many antibiotics, no information could be found in the literature defining which are the best screening criteria for detecting renal injury. In this paper, the authors aim to assess the progress to renal failure in neutropenic patients on antimicrobial use and to compare different diagnostic criteria of renal failure in association to antimicrobial agents used. This is a cohort study conducted from February to August 2006 at the Hospital das Clínicas of the Universidade Federal de Minas Gerais, which included patients with neutropenia and antimicrobial therapy for the treatment of Healthcare Associated Infections notified by the Hospital...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Neutropenia; Renal insufficiency; Antimicrobial agents.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000400016

Antinociceptive activity of Hypericum caprifoliatum and Hypericum polyanthemum (Guttiferae)
Provedor de dados: 56
Autores: Viana,A.F.; Heckler,A.P.; Fenner,R.; Rates,S.M.K.
The aim of the present study was to assess the analgesic activity of the aerial parts of two Hypericum species native to Southern Brazil, H. caprifoliatum and H. polyanthemum. The antinociceptive effect of the H. polyanthemum cyclohexane extract (POL; 180 mg/kg) and of the H. caprifoliatum methanol (MET) and cyclohexane (CH) extracts (90 mg/kg) was evaluated in the hot-plate (ip and po) and writhing (po) tests using male Swiss CF1 mice weighing 22-27 g (N = 10 per group). All extracts displayed antinociceptive effects in the hot-plate test (MET ip = 48%, MET po = 39%, CH ip = 27%, CH po = 50%, POL ip = 74%, and POL po = 49% compared to control). Pretreatment with naloxone (2.5 mg/kg, sc) abolished the effects of CH and POL, and partially prevented the...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Hypericum caprifoliatum; Hypericum polyanthemum; Analgesia; Antinociception; Hot-plate test; Writhing test.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000500011

Antinociceptive activity of Ricinus communis seed’s hydroethanolic extract on male Balb/C mice
Provedor de dados: 65
Autores: Esfandyari,Zahra; Mirazi,Naser; Sarihi,Abdolrahman; Rafieian-Kopaei,Mahmoud.
ABSTRACT: Pain is a normal protective response to tissue injury caused by physical trauma, noxious chemicals and microbiological agents. Use of chemical drugs and medicinal plants is a conventional method to manage pain; however, their side effects have caused increased tendency to the use of herbal medicines among patients. This study was conducted to investigate antinociceptive action of Ricinus communis seed’s extract (RCE) in male Balb/C mice. In this experimental study, 72 male mice weighing 25-35gr were used. Animals were randomly divided into six groups of 12 mice each, including: Control group, three groups separately treated respectively with 100, 200, and 400mg/kg hydroethanolic R. communis seed extract, morphine (1mg/kg)-treated group, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antinociception; Ricinus communis; Morphine; Mice.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600601

Antinociceptive effects of Cremophor EL orally administered to mice
Provedor de dados: 56
Autores: Tabarelli,Z.; Berlese,D.B.; Sauzem,P.D.; Mello,C.F.; Rubin,M.A.
Surfactants are frequently used to improve solubilization of lipophilic drugs. Cremophor EL (CrEL) is a polyoxyethylated castor oil surfactant used to solubilize water-insoluble drugs such as anesthetic, antineoplastic, immunosuppressive and analgesic drugs, vitamins and new synthetic compounds, including potential analgesics. The antinociceptive effect of CrEL (3.2, 6.4 and 10.6 g/kg, in 10 ml/kg body weight, by gavage) on the abdominal writhing response induced by intraperitoneal administration of acetic acid (0.8%, 10 ml/kg body weight) and on the tail immersion test was investigated in mice. Control animals received castor oil (10 ml/kg body weight) or saline (0.9% NaCl, 10 ml/kg body weight). CrEL reduced nociception in a dose-dependent manner in both...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Antinociception; Cremophor EL; Tail immersion test; Writhing test; Dipyrone; Morphine.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000100016

Antinociceptive effects of the essential oil of Croton nepetaefolius on mice
Provedor de dados: 56
Autores: Abdon,A.P.V.; Leal-Cardoso,J.H.; Coelho-de-Souza,A.N.; Morais,S.M.; Santos,C.F.
Croton nepetaefolius Baill., is an aromatic plant native to the northeast of Brazil where it is extensively used in folk medicine as a sedative, orexigen and antispasmodic agent. In the present study the antinociceptive effects of the essential oil of C. nepetaefolius (EOCn), administered orally, were evaluated in male Swiss mice (20-25 g). In the acetic acid-induced writhing test, EOCn (100 and 300 mg/kg; N = 14 and N = 12, respectively) was effective at the highest dose. In the hot-plate test, EOCn at 30 and 300 mg/kg, but not at 3 mg/kg, significantly increased the latency at all observation times up to the 180th min (N = 12 for each dose). In the formalin test, EOCn significantly reduced paw licking in the second phase of the test at 100 mg/kg (N =...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Croton nepetaefolius; Essential oil; Analgesic; Antinociception; Formalin test; Hot-plate test.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002001000015

Antinociceptive effects of the essential oil of Croton zehntneri in mice
Provedor de dados: 56
Autores: Oliveira,A.C.; Leal-Cardoso,J.H.; Santos,C.F.; Morais,S.M.; Coelho-de-Souza,A.N.
Croton zehntneri is an aromatic plant native to Northeastern Brazil, where it is often used in folk medicine. In the present study the antinociceptive effects of the essential oil of Croton zehntneri (EOCz) were evaluated in mice. EOCz administered orally at doses of 100 and 300 mg/kg reduced paw licking time in the second phase of the formalin test from the control value of 41.61 ± 8.62 to 12.01 ± 7.97 and 6.57 ± 3.42 s, respectively. During the first phase of the formalin test only 300 mg/kg induced a significant alteration (from 58.2 ± 7.02, control, to 28.7 ± 4.73 s). The number of contortions in response to intraperitoneal injections of acetic acid did not differ significantly between controls (80.6 ± 9.01) and experimental (300 mg/kg body weight)...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Croton zehntneri; Essential oil; Analgesic; Antinociception; Formalin test; Hot-plate test.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001100016

Antinociceptive effects of the essential oil of Mentha x villosa leaf and its major constituent piperitenone oxide in mice
Provedor de dados: 56
Autores: Sousa,P.J.C.; Linard,C.F.B.M.; Azevedo-Batista,D.; Oliveira,A.C.; Coelho-de-Souza,A.N.; Leal-Cardoso,J.H.
Mentha x villosa Huds (Labiatae) is an aromatic herb widely used in folk medicine. Since the essential oil of the herb has many pharmacological activities, including antispasmodic effects, we determined whether the oil and its major constituent, piperitenone oxide (PO), have antinociceptive activity. The essential oil of M. x villosa (EOMV) and PO administered orally at 200 mg/kg (vehicle: 0.1% Tween 80 in water) significantly reduced the writhings induced by acetic acid from control values of 59.5 ± 3.1 s (N = 10) to 31.9 ± 2.8 s (N = 10) and 23.8 ± 3.4 s (N = 10), respectively. When administered at 100 and 200 mg/kg, EOMV reduced the paw licking time for the second phase of the formalin test from the control value of 20.6 ± 2.1 s (N = 13) to 5.3 ± 2.2 s...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Mentha x villosa essential oil; Analgesia; Nociception; Anti-inflammatory effect; Piperitenone oxide.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000700010

Antinociceptive local effect of the combination of dexketoprofen trometamol and chlorhexidine gluconate in a formalin test: an additive effect
Provedor de dados: 60
Autores: Esparza-Villalpando,Vicente; Chavarria-Bolaños,Daniel; Zapata-Morales,Juan Ramón; Vértiz-Hernández,Antonio; Pozos-Guillén,Amaury.
ABSTRACT A drug delivery system (DDS) with analgesic and antibacterial properties would be desirable for the local control of post-operatory pain and the prevention for surgical site infection (SSI). The objective of the present study was to evaluate the antinociceptive effect of the combination between dexketoprofen trometamol (DXT) and chlorhexidine gluconate (CHX) in the formalin pain model. Different doses of CHX were combined with DXT and were locally administered in rats paw simultaneously with 5% formalin dilution. Flinches were documented and the antinociceptive effect was calculated. The area under the curve of each experimental group were calculated and the % of antinociception were compared. The groups of CHX and DXT showed similar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antinociception/effects; Formalin test; Dexketoprofen trometamol; Chlorhexidine.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000200601

Antinociceptive properties in mice of a lectin isolated from the marine alga Amansia multifida Lamouroux
Provedor de dados: 56
Autores: Neves,S.A.; Freitas,A.L.P.; Souza,B.W.S.; Rocha,M.L.A.; Correia,M.V.O.; Sampaio,D.A.; Viana,G.S.B.
The antinociceptive effects of a lectin (LEC) isolated from the marine alga Amansia multifida were determined in Swiss mice. The LEC (1, 5, and 10 mg/kg) inhibited acetic acid-induced abdominal writhings in a dose-dependent manner after intraperitoneal or oral administration. A partial but significant inhibition of writhings was observed after the combination of LEC (10 mg/kg) with avidin (1 mg/kg), a potent inhibitor of the hemmaglutinant activity of the lectin. However, total writhing inhibition was demonstrable in the group of mice treated with LEC plus mannose (1 mg/kg), as compared to LEC alone or to control groups. Furthermore, avidin and mainly mannose also play a role in antinociception, somehow facilitating the interaction of LEC with its active...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Red algae; Amansia multifida; Lectin; Antinociceptive effects; Mannose-specific lectin.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000100016

Antinociceptive properties of the essential oil of Ocimum gratissimum L. (Labiatae) in mice
Provedor de dados: 56
Autores: Rabelo,M.; Souza,E.P.; Soares,P.M.G.; Miranda,A.V.; Matos,F.J.A.; Criddle,D.N.
We have investigated the antinociceptive effects of the essential oil of Ocimum gratissimum L. (Labiatae) (EOOG) in two classical models of pain in male Swiss mice (25-35 g), the writhing test and the formalin test. At doses of 30, 100 and 300 mg/kg (po), EOOG produced a dose-dependent inhibition (from 58.3 ± 4.4 to 40.7 ± 6.3, 36.4 ± 3.6 and 24.6 ± 3.6, respectively; N = 8-10, P&lt;0.05) of acetic acid-induced writhing, causing up to a ~60% inhibition at the highest dose used, comparable to that obtained with indomethacin (10 mg/kg, po). At the same doses, EOOG predominantly inhibited the late (inflammatory) phase of the formalin-induced pain response (from 59.3 ± 8.3 to 40.4 ± 4.8, 23.2 ± 2.8 and 25.3 ± 5.5, respectively; N = 6, P&lt;0.05), with a...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Ocimum gratissimum L.; Labiatae; Essential oil; Antinociception.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000400016

Anti-obesity Effects of the Administration of Tournefortia paniculata Cham Extract on Wistar Rats Subjected to a Hypercaloric Diet
Provedor de dados: 52
Autores: Simão,Anderson Assaid; Ramos,Vinicius de Oliveira; Corrêa,Angelita Duarte; Sousa,Raimundo Vicente de; Marcussi,Silvana.
The aim of this study was to evaluate the therapeutic and toxicologic effects of the administration of the powered vegetable extract and aqueous extract of Tournefortia paniculata leaves on Wistar rats, subjected to a hypercaloric diet for 42 days. The rats were divided into five groups and were given the following treatments by gavage: T0 (control) - 1.0 mL water day-1; T1 - aqueous extract containing 14 mg phenolic compounds kg-1 rat day-1; T2 - 14 mg quercetin kg-1 rat day-1; T3 - 50 mg powered vegetable extract from T. paniculata leaves (PVE) kg-1 rat day-1 and T4 - 100 mg PVE kg-1 rat day-1. The treatments did not significantly alter the weight, but were effective in reducing liver fat, glucose and serum triglycerides. The treatment T1 reduced food...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Obesity; Medicinal plants; Pharmacology; Antioxidants; Genotoxicity.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000400494

Antiophidian sera sterility control: topics in perspective
Provedor de dados: 60
Autores: Santos,Paula Gomes; Santos,Dilvani Oliveira; Seródio,Lilia Ribeiro; Marinho,Rachel de Souza; Rodrigues,Carlos Rangel; Cabral,Lucio Mendes; Pádula,Marcelo de; Sousa,Valéria Pereira de; Castro,Helena Carla.
The aim of this work is to review the most important topics about the antiophidic sera sterility, including obtaining methods, sterilization procedures and clean room control using Vital Brazil Institute (VBI) as an example. Bibliographical research was performed through Medline, Lilacs, PubMed, ISI and the Fundação Oswaldo Cruz - RJ and VBI Libraries, from 1960 to 2009. The antiophidic sera for human use are immunobiologic products produced in Brazil by three national laboratories, including VBI. Due to the parenteral use, these products should be sterile and pyrogen-free, which demands the microbiological control during the whole fabrication process. The sterility and pyrogen tests are important steps to ensure the quality and safety of these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microbiologic control; Antiophidic sera; Sterility test; Contaminants.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000300004

Antioxidant action in diets with ground soybeans on ruminal microbial production, digestion, and fermentation in buffaloes
Provedor de dados: 96
Autores: Zeoula,Lucia Maria; Machado,Erica; Carraro,Jocasta; Aguiar,Sílvia Cristina; Yoshimura,Emerson Henri; Agustinho,Bruna Calvo; Santos,Fabio Seiji dos; Santos,Nadine Woruby.
ABSTRACT The objective of this study was to evaluate the effect of adding ground soybeans and antioxidants to diet of buffaloes on intake, ruminal microbial production, total and ruminal digestibility of nutrients, and ruminal fermentation parameters. Four crossbred buffaloes with a mean weight of 506±29 kg were distributed in a 4×4 Latin square. Four diets were tested: control; diet with ground soybeans; diet with ground soybeans and supplementation with yerba mate; and diet with ground soybeans and supplementation with yerba mate and vitamin E. The addition of ground soybeans had negative effects on intake of dry matter, organic matter, crude protein, neutral detergent fiber, and acid detergent fiber, as well as ruminal digestibility of neutral detergent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ether extract; Polyphenols; Ruminal manipulation; Ruminal metabolism; Tocopherol.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100709

Antioxidant Activity of Oral Administration of Rosmarinus Officinalis Leaves Extract on Rat's Hippocampus which Exposed to 6-Hydroxydopamine
Provedor de dados: 52
Autores: Rasoul,Arashpour; Maryam,Haji GhasemKashani; Taghi,Ghorbanian Mohammad; Taghi,Lashkarbolouki; dehghan,Rada asle.
Carnosic acid, a diterpene of Rosemarinus officinalis leaves extract (RE), has potent antioxidant activity in vitro. The dopaminergic connection of substantia nigra pars compacta to the hippocampus might be affected by oxidative stress which caused cognitive impairment observed in the early phase of Parkinson's disease (PD). Adult male Wistar rats were lesioned bilaterally by intra-nigral injection of 6-OHDA, and divided into six groups: four groups that orally given RE containing 40% of carnosic acid, at doses of 25, 50 and 100 mg/kg (treated rats) and distilled water (H2O), once daily for a period of 14 days before and after the injury. There were also two another groups as control rats which injected by normal saline and untreated lesion group. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rosmarinus officinalis leaves extract; Antioxidant enzymes; Hippocampus; 6-Hydroxydopamine.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100312

Antioxidant activity of the microalga Spirulina maxima
Provedor de dados: 56
Autores: Miranda,M.S.; Cintra,R.G.; Barros,S.B.M.; Mancini-Filho,J.
Spirulina maxima, which is used as a food additive, is a microalga rich in protein and other essential nutrients. Spirulina contains phenolic acids, tocopherols and ß-carotene which are known to exhibit antioxidant properties. The aim of the present study was to evaluate the antioxidant capacity of a Spirulina extract. The antioxidant activity of a methanolic extract of Spirulina was determined in vitro and in vivo. The in vitro antioxidant capacity was tested on a brain homogenate incubated with and without the extract at 37oC. The IC50 (concentration which causes a 50% reduction of oxidation) of the extract in this system was 0.18 mg/ml. The in vivo antioxidant capacity was evaluated in plasma and liver of animals receiving a daily dose of 5 mg for 2 and...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Microalgae antioxidant activity Spirulina maxima phenolic compounds ß-carotene &lt; FONT FACE=Symbol&gt; A&lt; /FONT&gt; -tocopherol.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000800007

Antioxidant, analgesic and anti-inflammatory effects of lavender essential oil
Provedor de dados: 42
Autores: SILVA,GABRIELA L. DA; LUFT,CAROLINA; LUNARDELLI,ADROALDO; AMARAL,ROBSON H.; MELO,DENIZAR A. DA SILVA; DONADIO,MÁRCIO V.F.; NUNES,FERNANDA B.; AZAMBUJA,MARCOS S. DE; SANTANA,JOÃO C.; MORAES,CRISTINA M.B.; MELLO,RICARDO O.; CASSEL,EDUARDO; PEREIRA,MARCOS AURÉLIO DE ALMEIDA; OLIVEIRA,JARBAS R. DE.
Several studies have investigated the antinociceptive, immunomodulatory and anti-inflammatory properties of compounds found in the lavender essential oil (LEO), however to date, there is still lack of substantial data. The objective of this study was to assess the antioxidant, anti-inflammatory and antinociceptive effects of lavender essential oil. The 1,1-diphenyl-2-picrylhydrazyl radical decolorization assay was used for antioxidant activity evaluation. The anti-inflammatory activity was tested using two models of acute inflammation: carrageenan-induced pleurisy and croton oil-induced ear edema. The antinociceptive activity was tested using the pain model induced by formalin. LEO has antioxidant activity, which is dose-dependent response. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidants; Inflammation; Lavender; Nociception.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000301397

Antioxidant and anti hyperglycemic role of wine grape powder in rats fed with a high fructose diet
Provedor de dados: 48
Autores: Hernández-Salinas,Romina; Decap,Valerie; Leguina,Alberto; Cáceres,Patricio; Perez,Druso; Urquiaga,Ines; Iturriaga,Rodrigo; Velarde,Victoria.
BACKGROUND: Metabolic syndrome is a growing worldwide health problem. We evaluated the effects of wine grape powder (WGP), rich in antioxidants and fiber, in a rat model of metabolic syndrome induced by a high fructose diet. We tested whether WGP supplementation may prevent glucose intolerance and decrease oxidative stress in rats fed with a high fructose diet. METHODS: Male Sprague-Dawley rats weighing 180 g were divided into four groups according to their feeding protocols. Rats were fed with control diet (C), control plus 20 % WGP (C + WGP), 50 % high fructose (HF) or 50 % fructose plus 20 % WGP (HF + WGP) for 16 weeks. Blood glucose, insulin and triglycerides, weight, and arterial blood pressure were measured. Homeostasis model assessment (HOMA) index...
Tipo: Journal article
Palavras-chave: Insulin resistance; Oxidative stress; Metabolic syndrome; Wine grape powder.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100053

Antioxidant and anticholinesterase investigations of Rumex hastatus D. Don: potential effectiveness in oxidative stress and neurological disorders
Provedor de dados: 48
Autores: Ahmad,Sajjad; Ullah,Farhat; Ayaz,Muhammad; Sadiq,Abdul; Imran,Muhammad.
BACKGROUND: Rumex species are traditionally used for the treatment of neurological disorders including headache, migraine, depression, paralysis etc. Several species have been scientifically validated for antioxidant and anticholinestrase potentials. This study aims to investigate Rumex hastatus D. Don crude methanolic extract, subsequent fractions, saponins and flavonoids for acetylcholinestrase, butyrylcholinestrase inhibition and diverse antioxidant activities to validate its folkloric uses in neurological disorders. Rumexhastatus crude methanolic extract (Rh. Cr), subsequent fractions; n-hexane (Rh. Hex), chloroform (Rh. Chf), ethyl acetate (Rh. EtAc), aqueous fraction (Rh. Aq), crude saponins (Rh. Sp) and flavonoids (Rh. Fl) were investigated against...
Tipo: Journal article
Palavras-chave: Ethnomedicinal; Acetylcholinesterase; Butyrycholinesterase; DPPH; ABTS.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100020

Antioxidant and Hypoglycemic Effects of Momordica cochinchinensis Spreng: (Gac) Aril Extract on Reproductive Damages in Streptozotocin (STZ)-Induced Hyperglycemia Mice
Provedor de dados: 77
Autores: Sampannang,Apichakan; Arun,Supatcharee; Sukhorum,Wannisa; Burawat,Jaturon; Nualkaew,Somsak; Maneenin,Chanwit; Sripanidkulchai,Bungorn; Iamsaard,Sitthichai.
The aim of present study was to investigate the effect of Momordica cochinchinensis (Gag) aril (GA) aqueous extract on male reproductive system of streptozotocin (STZ)-induced hyperglycemia (HG) mice. GA were extracted with distilled water (DW) and analyzed for in vitro antioxidant capacities. ICR male mice were divided into 7 groups: 1) control, 2) DW, 3) GA 1000 mg/kg BW, 4) HG, 5) HG + glibenclamide, 6 and 7) HG + GA 500 and 1000 mg/kg BW respectively (7 mice/ group). In HG groups, mice were induced by STZ at single dose (150 mg/kg BW). They were treated for consecutive 35 days. All groups were compared for blood glucose levels, weights and histopathologies of reproductive organs, sperm concentration including testicular tyrosine phosphorylation protein...
Tipo: Journal article
Palavras-chave: Momordica cochinchinensis aril; Streptozotocin (STZ); Testicular damage; Testicular tyrosine phosphorylated protein; Hyperglycemia (HG) mice.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200046

Antioxidant and immunomodulatory activities of Oviductus ranae in mice
Provedor de dados: 60
Autores: Zhang,Yang; Liu,Yang; Yang,Xiudong; Cui,Hao; Xu,Xiaoxiao; Mao,Liping; Zhou,Hongli.
Oviductus ranae (OR) is a traditional Chinese medicine, which was first recorded in the Compendium of Materia Medica in the Ming Dynasty. OR contains high amounts of proteins and elicits therapeutic effects on neurasthenia, insomnia, and respiratory symptoms, which are related to oxidative stress and immunodeficiency. This study aimed to obtain the potential of OR for the development of functional food possessing antioxidant and immune-enhancement functions in the same dose. In antioxidant evaluation, OR can significantly decrease malondialdehyde and protein carbonyls (P &lt; 0.05, P &lt; 0.01) and significantly increase total superoxide dismutase and glutathione in a dose-dependent manner (P&lt; 0.05, P &lt; 0.01) against ethanol-induced oxidative stress...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oviductus ranae/evaluation/antioxidant activity; Immunomodulatory activity; Functional food.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000400626

Antioxidant Capacity and Acute Testicular Toxicity of Leucaena leucocephala Aqueous Shoot Tips Plus Young Leaves Extracts
Provedor de dados: 77
Autores: Burawat,Jaturon; Uabandit,Nongnut; Sripanidkulchai,Bungorn; Nualkaew,Somsak; Iamsaard,Sitthichai.
This study aimed to determine the antioxidant capacity of the Leucaena leucocephala aqueous shoot tips plus young leaves (LL-spl) extracts among three different fractions (LL-spl 10, 20, and 40 min) and to examine its acute toxicity on male reproductive parameters. The amount of the total phenolics in LL-spl extract was determined using a Folin-Ciocalteu reagent method and its antioxidant capacity was analyzed using 1, 1-diphenyl l-2-picrylhydrazyl radical scavenging and ferric reducing antioxidant powder methods. The LL-spl extract fraction with highest antioxidant capacity was used in animal treating. Male rats were divided into three groups (n= 5); control and groups treated with LL-spl 400 and 600 mg/Kg body weight for consecutive 40 days. The results...
Tipo: Journal article
Palavras-chave: Leucaena leucocephala; Shoot tips plus young leaves; Antioxidant capacity; Acute testicular toxicity.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200018

Antioxidant capacity of vitamin C in mouse liver and kidney tissues
Provedor de dados: 47
Autores: Weyers,Alicia; Ugnia,Laura I.; García Ovando,Hugo; Gorla,Nora B.
In the present study, the antioxidant capacity of vitamin C was examined in the liver and the kidney tissues of mice with or without ciprofloxacin (CFX) treatment. The antioxidant capacity of the vitamin was evaluated in terms of lipid hydroperoxides (LOOH) and thiobarbituric acid reactive substances (TBARs). The experimental design was 15 days of water (control and CFX groups) or vitamin C (vitamin C and vitamin C plus CFX groups) in drinking water. One dose of CFX was injected, 15 minutes before sacrifice, in the corresponding mice. The initial nmol of lipid hydroperoxides/g of tissue were 137 ± 11 in the kidney and 145 ± 15 in the liver, and the nmol of TBARs were 13 ± 0.7 and 12 ± 0.6, respectively. Pre-treatment with vitamin C reduced the levels of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lipid peroxidation; Vitamin C; Ciprofloxacin; Mice.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452008000100003

Antioxidant effect of quinoline derivatives containing or not selenium: Relationship with antinociceptive action quinolines are antioxidant and antinociceptive
Provedor de dados: 42
Autores: WILHELM,ETHEL A.; FERREIRA,ANA TERESINHA; PINZ,MIKAELA P.; REIS,ANGÉLICA S. DOS; VOGT,ANE G.; STEIN,ANDRE L.; ZENI,GILSON; LUCHESE,CRISTIANE.
ABSTRACT The present study investigated the antioxidant effect of a new class of quinoline derivatives (a-d) on assays in vitro. Lipid peroxidation, thiol peroxidase-like and free radical scavenging activities were determined to evaluate antioxidant activity of compounds. Thiol oxidase-like and δ-aminolevulinate dehydratase activities were performed as a toxicological parameter. A second objective of this study was to evaluate the in vivo antinociceptive effect of the compound with better antioxidant effect and without toxic effects in a model of nociception induced by formalin in mice. In liver, at 100 µM, compound a reduced the lipid peroxidation to the control levels, while compounds c and d partially reduced it. In brain, only compound d partially...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antinociceptive; Antiedematogenic; Anti-inflammatory; Antioxidant; Quinoline.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200457

Antioxidant effect on viability of boar semen cooled to 15°C
Provedor de dados: 45
Autores: Martins,V.E.D.; Pinto,S.C.C.; Chaves,R.M.; Barros Filho,A.K.D.; Laskoski,L.M.; Souza,F.A.
ABSTRACT This study aimed to evaluate the addition of Vitamin C, reduced Glutathione and trolox on sperm characteristics of pork refrigerated semen. Six pigs were collected through the technique of gloved hand (10 ejaculates/animals). The semen was diluted in MR-A®. After the previous evaluations, the treatments were added: Control group: diluent only; Vitamin C Group: 200μM/mL Vitamin C; Trolox Group: 200μM/mL Trolox; Glutathione group: 2.5mM/ml Reduced glutathione. The semen was stored in thermal boxes and placed inside the refrigerator at 15oC and evaluated at D0, 12, 48, 72 hours. After 30 hours of incubation, each treatment was divided into two equal fractions and the same concentration of antioxidants was added in one of the parts. The results show...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glutathione; Sperm; Trolox; Vitamin C.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100145

Antioxidant Effects of Biochanin A in Streptozotocin Induced Diabetic Rats
Provedor de dados: 52
Autores: Sadri,Hamideh; Goodarzi,Mohammad Taghi; Salemi,Zahra; Seifi,Morteza.
ABSTRACT Bioflavonoid-containing diets have been reported to be beneficial in diabetes. In the current study, the effect of Biochanin A (BCA) on blood glucose, antioxidant enzyme activities and oxidative stress markers in diabetic rats were investigated. 30 male Wistar rats were divided into five groups. Two of them were selected as control; group1: control (receiving 0.5%DMSO), and group2: Control+BCA (receiving 10 mg/kg.bw BCA). Diabetes was induced in other rats with injection of (55 mg/kg.bw) streptozotocin; group3: diabetic control (receiving 0.5%DMSO), groups 4 and 5 were treated with 10 and 15 mg/kg.bw BCA respectively. After 6 weeks the following results were obtained. Fasting blood glucose (FBG), Triglyceride (TG), total cholesterol (TC), low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biochanin A; Diabetic rats; Oxidative stress; STZ.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100313

Antioxidant responses of Laeonereis acuta (Polychaeta) after exposure to hydrogen peroxide
Provedor de dados: 56
Autores: Rosa,C.E. da; Bianchini,A.; Monserrat,J.M.
The effects of H2O2 were evaluated in the estuarine worm Laeonereis acuta (Polychaeta, Nereididae) collected at the Patos Lagoon estuary (Southern Brazil) and maintained in the laboratory under controlled salinity (10 psu diluted seawater) and temperature (20°C). The worms were exposed to H2O2 (10 and 50 µM) for 4, 7, and 10 days and the following variables were determined: oxygen consumption, catalase (CAT) and glutathione peroxidase activity in both the supernatant and pellet fractions of whole body homogenates. The concentrations of non-protein sulfhydryl and lipid peroxides (LPO) were also measured. The oxygen consumption response was biphasic, decreasing after 4 days and increasing after 7 and 10 days of exposure to 50 µM H2O2 (P &lt; 0.05). At the...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Worms; Laeonereis acuta; Hydrogen peroxide; Oxidative stress; Antioxidant enzymes; Oxygen consumption.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000200007

Antioxidant status of dog aqueous humor after extracapsular lens extraction
Provedor de dados: 56
Autores: Barros,P.S.M.; Padovani,C.F.; Silva,V.V.; Queiroz,L.; Barros,S.B.M.
We determined the antioxidant status of the aqueous humor after extracapsular lens extraction in 14 mongrel dogs weighing about 10 kg. The animals were examined by slit lamp biomicroscopy, applanation tonometry and indirect ophthalmoscopy. One eye was submitted to conventional extracapsular lens extraction and the other was used as control. Samples of aqueous humor were obtained by anterior chamber paracentesis before and at days 1, 2, 3, 7 and 15 after surgery. Total antioxidant status was determined as the capacity of aqueous humor to inhibit free radical generation by 2,2-azobis(2-amidopropane) chlorine. Ascorbic acid concentration was measured by HPLC with UV detection. Protein content was determined with the biuret reagent. Statistical analysis was...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Lens; Aqueous humor; Oxidative stress; Antioxidant; Extracapsular lens extraction.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001100007

Antiparasitic activity of chicory (Cichorium intybus) and its natural bioactive compounds in livestock: a review
Provedor de dados: 21
Autores: Peña-Espinoza, Miguel; Valente, Angela H.; Thamsborg, Stig M.; Simonsen, Henrik T.; Boas, Ulrik; Enemark, Heidi L.; López-Muñoz, Rodrigo; Williams, Andrew R.
Increasing drug resistance in gastrointestinal (GI) parasites of livestock and concerns about chemical residues in animal products and the environment are driving the development of alternative control strategies that are less reliant on the use of synthetic drugs. An increasingly investigated approach is the use of bioactive forages with antiparasitic properties as part of the animal’s diet (nutraceuticals) or as potential sources of novel, natural parasiticides. Chicory (Cichorium intybus) is a multi-purpose crop and one of the most promising bioactive forages in temperate regions, and numerous in vivo trials have explored its potential against parasitic nematodes in livestock. However, it is unclear whether chicory can induce a direct and broad activity...
Tipo: Journal paper
Palavras-chave: Production systems; Dairy cattle; Beef cattle; Sheep and goats; Health and welfare; Pigs.
Ano: 2018
URL: http://orgprints.org/33736/1/Pe%C3%B1a-Espinoza%20et%20al%202018.pdf

Antiphospholipid antibodies in Brazilian hepatitis C virus carriers
Provedor de dados: 56
Autores: Atta,A.M.; Estevam,P.; Paraná,R.; Pereira,C.M.; Leite,B.C.O.; Sousa-Atta,M.L.B.
Hepatitis C, a worldwide viral infection, is an important health problem in Brazil. The virus causes chronic infection, provoking B lymphocyte dysfunction, as represented by cryoglobulinemia, non-organ-specific autoantibody production, and non-Hodgkin's lymphoma. The aim of this research was to screen for the presence of antiphospholipid autoantibodies in 109 Brazilian hepatitis C virus carriers without clinical history of antiphospholipid syndrome. Forty healthy individuals were used as the control group. IgA, IgG, and IgM antibodies against cardiolipin and β2-glycoprotein I were measured with an enzyme-linked immunosorbent assay, using a cut-off point of either 20 UPL or 20 SBU. While 24 (22.0%) hepatitis C carriers had moderate titers of IgM...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Hepatitis C virus; Antiphospholipid antibody; Brazilian patients.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000600009

Anti-placental growth factor antibody ameliorates hyperoxia-mediated impairment of lung development in neonatal rats
Provedor de dados: 56
Autores: Zhang,Zhiqun; Zhong,Ying; Li,Xiaoxia; Huang,Xianmei; Du,Lizhong.
This study investigates the effect of the overexpression of the placental growth factor (PGF) and hyperoxia on lung development and determines whether anti-PGF antibody ameliorates hyperoxia-mediated impairment of lung development in newborn rats. After exposure to normoxic conditions for seven days, newborn rats subjected to normoxia were intraperitoneally or intratracheally injected with physiological saline, adenovirus-negative control (Ad-NC), or adenovirus-PGF (Ad-PGF) to create the Normoxia, Normoxia+Ad-NC, and Normoxia+Ad-PGF groups, respectively. Newborn rats subjected to hyperoxia were intraperitoneally injected with physiological saline or anti-PGF antibodies to create the Hyperoxia and Hyperoxia+anti-PGF groups, respectively. Our results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bronchopulmonary dysplasia; Anti-PGF antibody; Newborn rats; Hyperoxia; Lung tissue injury.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000200604

Anti-predator behaviour of Sahamalaza sportive lemurs, Lepilemur sahamalazensis, at diurnal sleeping sites
Provedor de dados: 16
Autores: Seiler, M.; Schwitzer, C.; Holderied, M.
In response to predation pressure by raptors, snakes, and carnivores, primates employ anti-predator behaviours such as avoiding areas of high predation risk, cryptic behaviour and camouflage, vigilance and group formation (including mixedspecies associations), and eavesdropping on other species’ alarm calls. After detecting a predator, primates can produce alarm calls, show predator-specific escape strategies or even mob the predator. It remains unclear how solitary nocturnal primates respond to diurnal predation pressure while they sleep or rest. The aim of this study was to investigate the diurnal anti-predator behaviour of the nocturnal and solitary Sahamalaza sportive lemur, Lepilemur sahamalazensis, which regularly rests in exposed locations. We...
Tipo: Article / Letter to the editor
Palavras-chave: Critically endangered; Nocturnal primates; Fragmentation; Playback experiments; Predator-specific strategy; 42.84.
Ano: 2013
URL: http://www.repository.naturalis.nl/record/475370

Antiproliferative action of aqueous extracts of Hymenaea stigonocarpa Mart. (Fabaceae) on the cell cycle of Allium cepa L.
Provedor de dados: 42
Autores: LACERDA,LOURRAN P.; MALAQUIAS,GEIZ; PERON,ANA PAULA.
In this study we evaluated the action of crude aqueous extracts obtained from rhytidome of Hymenaea stigonocarpa (jatobá-do-cerrado) on Allium cepa meristematic root cells in three concentrations: 0.082, 0.164, 0.328g/mL, at exposure times of 24 and 48 h. The slides were prepared by the crushing technique, and cells analyzed throughout the cell cycle, totaling 5000 for each control group and concentration. It was found that all three concentrations, including the lowest which is considered ideal for use, in all exposure times, had significant antiproliferative action on the cell cycle of this test system. For cells under division, we observed a high number of cells in prophase. Therefore, under the conditions studied H. stigonocarpa indicated to be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allium cepa; Cellular division; Cells in prophase; Medicinal plant.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301147

Antiproliferative and genotoxic effects of Mikania glomerata (Asteraceae)
Provedor de dados: 47
Autores: Dalla Nora,Gracieli; Pastori,Tamara; Dail Laughinghouse IV,Haywood; Do Canto-Dorow,Thais Scotti; Bosio Tedesco,Solange.
Mikania glomerata is a plant used in Brazilian traditional medicine, known as &amp;#8216;guaco'. It possesses anti-inflammatory properties and the aqueous extracts of its leaves are indicated for the treatment of diseases of the respiratory tract. This study aimed at evaluating the antiproliferative and genotoxic effect of Mikania glomerata leaf infusions on the cell cycle of onion. The material used was collected in the native environment from Rio Grande do Sul State, Brazil. Aqueous extracts through infusions were prepared in two concentrations: 4g/L (usual concentration) and 16g/L (4x more concentrated) of each of the populations. Two groups of four onion bulbs for each plant population were used plus a control group. The rootlets were fixed in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Medicinal plant; Allium cepa test; Chromosomal aberration.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452010000300001

Antiretroviral agents and acid-base balance at delivery of the neonate
Provedor de dados: 56
Autores: El-Beitune,P.; Duarte,G.; Morais,E.N. de; Campbell,O.; Spara-Gadelha,P.; Mauad-Filho,F.; Quintana,S.M.; Rodrigues,L.C.
Limited evidence is available regarding antiretroviral (ARV) safety for uninfected infants exposed to these drugs in utero. Our objective was to determine if ARV administered to pregnant women is associated with decreasing umbilical arterial pH and base excess in uninfected infants. A prospective study was conducted on 57 neonates divided into three groups: ZDV group, born to mothers taking zidovudine (N = 20), triple therapy (TT) group, born to mothers taking zidovudine + lamivudine + nelfinavir (N = 25), and control group (N = 12), born to uninfected mothers. Umbilical cord blood was used to determine umbilical artery gases. A test was performed to calculate the sample by comparing means by the unpaired one-tailed t-test, with a = 0.05 and ß = 20%,...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: HIV; Infant toxicity; Pregnancy; Umbilical arterial pH; Apgar scores.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000700010

Antiretroviral therapy immunologic non-response in a Brazilian population: association study using pharmaco- and immunogenetic markers
Provedor de dados: 55
Autores: Coelho,Antonio V.C.; Moura,Ronald R. de; Guimarães,Rafael L.; Brandão,Lucas A.C.; Crovella,Sergio.
ABSTRACT  Background: Antiretroviral therapy (ART) saved millions from HIV-1 infection and AIDS, but some patients do not experience adequate CD4+ T cells gain despite achieving viral suppression. The genetic component of this condition is not yet completely elucidated.  Objective: To identify predictive genetic markers of immune response to ART.  Methods: Case–control study. Out of 176 HIV-infected patients recruited in the city of Recife, Northeast Brazil, 67 patients with no immunologic response were the cases and the remaining 109 patients who responded were the controls. A set of 94 selected single nucleotide polymorphisms (SNPs) involved in antiretroviral drugs pharmacodynamic pathways and immune system homeostasis were genotyped, while the remaining...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HIV-1; Pharmacodynamics; Immunogenetics; Genetic association study; Survival analysis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000500392

Antisense mRNA for NPY-Y1 receptor in the medial preoptic area increases prolactin secretion
Provedor de dados: 56
Autores: Silveira,N.A.; Franci,C.R.
We investigated the participation of neuropeptide Y-Y1 receptors within the medial preoptic area in luteinizing hormone, follicle-stimulating hormone and prolactin release. Four bilateral microinjections of sense (control) or antisense 18-base oligonucleotides of messenger ribonucleic acid (mRNA) (250 ng) corresponding to the NH2-terminus of the neuropeptide Y1 receptor were performed at 12-h intervals for two days into the medial preoptic area of ovariectomized Wistar rats (N = 16), weighing 180 to 200 g, treated with estrogen (50 µg) and progesterone (25 mg) two days before the experiments between 8.00 and 10:00 a.m. Blockade of Y1 receptor synthesis in the medial preoptic area by the antisense mRNA did not change plasma luteinizing hormone or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neuropeptide Y; Medial preoptic area; Neuropeptide Y-Y1 receptor; Prolactin; MRNA for neuropeptide; Y-Y1 receptor; Luteinizing hormone; Follicle-stimulating hormone.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000900016

Anti-staphylococcal effectiveness of nisaplin in refrigerated pizza doughs
Provedor de dados: 52
Autores: Freitas,Wilma Carla de; Souza,Evandro Leite de; Sousa,Cristina Paiva de; Travassos,Antônio Eustáquio Resende.
This study evaluated the effectiveness of nisaplin, commercial product having nisin as active component, in decreasing the staphylococcal population in refrigerated pizza doughs. The refrigerated pizza dough pieces randomly chosen were dipped in the solutions with nisaplin concentrations of 1.0 x 10-3 g and 1.0 x 10-2 g nisaplin/mL named for the treatment A and B and kept under refrigeration (7 °C ± 1 °C). On times 0, 15 and 30 days post treatment the Staphylococcus spp. count was carried out. The results showed that both nisaplin treatments were able to reduce the Staphylococcus spp. count (CFU/g) in the refrigerated pizza doughs. However, only treatment B showed statistically significant reducer effect (p &lt; 0.05) on the count providing a decrease of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nisaplin; Nisin; Dough; Staphylococcus.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000300021

Antitranspirant effect on the stomatal conductance in Cordia trichotoma (Vell.) Ahab. ex Steud seedlings
Provedor de dados: 22
Autores: Cadorin, Danielle Acco; Dranski, João Alexandre Lopes; Malavasi, Ubirajara Contro.
The use of antitranspirants in the nursery may induce greater seedling resistance to water stress after planting. This essay evaluated the effect of antitranspirante doses on stomatal conductance in seedlings of Cordia trichotoma subjected to water stress. Seedlings received the control treatment which consisted of water pulverization and doses of 1.5% and 3.0% of antitranspirant diluted in water. The essay was conducted in randomized blocks with ten repetitions of two saplings each. Measurements included stomatal conductance until the 12 day after induced water stress and leaf water content (LWC). Seedlings that received antitranspirant presented the lesser stomatal conductance, which is in accordance with the application of antitranspirants because of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Louro-pardo; Restrição hídrica; Transpiração.
Ano: 2016
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/10769

Anti-Trypanosoma cruzi antibody detection in blood donors in the Southern Brazil
Provedor de dados: 55
Autores: Araújo,A.B.; Vianna,E.E.S.; Berne,M.E.A.
Trypanosoma cruzi, the causal agent of Chagas' Disease, is a widely spread protozoa in America. Blood transfusion is the secondly most important way of acquiring the infection. In blood banks, tests are performed to eliminate potentially infected blood. This study aimed to evaluate the positivity for T. cruzi in blood samples of donor's candidates in Southern Brazil. The study was based on a sampling containing all blood donors of Hemopel - a Pelotas City Blood Center, Rio Grande do Sul State, Brazil, from 2004 to 2005. Serological study was performed using ELISA Chagatest. Sampling containing values ± 20% cut off were evaluated using ELISA Chagatek, ELISA Alka/Adaltis, IHA Chagatest and IIF Imunocruzi. TESA-Blot was used as a confirmatory procedure in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trypanosoma cruzi; Blood donors; Serological screening.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000600007

Anti-tuberculosis drug resistance in strains of Mycobacterium tuberculosis isolated from patients in a tertiary hospital in Bahia
Provedor de dados: 55
Autores: Matos,Eliana Dias; Lemos,Antônio Carlos Moreira; Bittencourt,Carolina; Mesquita,Cristiane Leite.
Anti-tuberculosis drug resistance, particularly multiresistance, is a crucial issue in the control of tuberculosis (TB). This study estimated the prevalence of primary and acquired anti-tuberculosis drug resistance in strains of Mycobacterium tuberculosis isolated from hospitalized patients, to identify the risk factors for resistance, and to evaluate the its impact on hospital mortality for tuberculosis. Strains of Mycobacterium tuberculosis from 217 patients hospitalized for TB were analyzed. Subjects were recruited sequentially at a TB reference hospital in Salvador, Bahia, Brazil from July 2001 to July 2003. Multiresistant (MR) strains were defined as strains resistant to rifampicin and isoniazid. Of a total of 217 strains isolated, 41 (19.0%, 95%CI:...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mycobacterium tuberculosis; Tuberculosis; Resistance; Multiresistance; Hospitals; Bahia-Brazil.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000300007

Antitumor efficacy of EDTA co-treatment with cisplatin in tumor-bearing mice
Provedor de dados: 60
Autores: El-Naggar,Sabry Ali; El-Said,Karim Samy.
Ethylenediamine tetraacetic acid (EDTA) is used in various medical applications. The aim of this study is to investigate the antitumor efficacy of EDTA alone or with cisplatin (Cis). Fifty male albino mice were used to assess the median lethal dose (LD50) of EDTA via intraperitoneal (i.p) injection. To determine the antitumor activity, fifty female albino mice were divided into five groups as the following; Group 1 (Gp1) was negative control; (Gp2-5) inoculated i.p with 2×106 Ehrlich Ascites Carcinoma (EAC) cells/mouse. After one day, Gp3, Gp4 and Gp5 injected with Cis (2 mg/kg), EDTA (25 mg/kg) and Cis (2 mg/kg)/EDTA (25 mg/kg) for six days, respectively. At day 14, all groups were sacrificed to assess the tumor profile, liver enzymes (alanine...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cisplatin; Ethylenediamine tetraacetic acid (EDTA)/Antitumor efficacy; Ehrlich Ascites Carcinoma.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100571

Anti-tumor properties of blackseed (Nigella sativa L.) extracts
Provedor de dados: 56
Autores: Ait Mbarek,L.; Ait Mouse,H.; Elabbadi,N.; Bensalah,M.; Gamouh,A.; Aboufatima,R.; Benharref,A.; Chait,A.; Kamal,M.; Dalal,A.; Zyad,A.
The objective of the present study was to evaluate the in vitro and in vivo anti-cancer effect of Nigella sativa L. seed extracts. The essential oil (IC50 = 0.6%, v/v) and ethyl acetate (IC50 = 0.75%) extracts were more cytotoxic against the P815 cell line than the butanol extract (IC50 = 2%). Similar results were obtained with the Vero cell line. Although all extracts had a comparable cytotoxic effect against the ICO1 cell line, with IC50 values ranging from 0.2 to 0.26% (v/v), tests on the BSR cell line revealed a high cytotoxic effect of the ethyl acetate extract (IC50 = 0.2%) compared to the essential oil (IC50 = 1.2%). These data show that the cytotoxicity of each extract depends on the tumor cell type. In vivo, using the DBA2/P815 (H2d) mouse model,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nigella sativa L.; Extracts; Cytotoxicity; Anti-tumor activity.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000600014

Antivenom action on renal effects induced by Thalassophryne nattereri venom
Provedor de dados: 80
Autores: Martins,AMC; Barbosa,PSF; Sousa,DF; Alves,CD; Menezes,DB; Lima,C; Lopes-Ferreira,M; Fonteles,MC; Monteiro,HSA.
Thalassophryne nattereri (niquim) is a venomous fish responsible for numerous accidents involving fishermen in northern and northeastern Brazil. The aim of the present investigation was to evaluate the action of antivenom on renal effects caused by Thalassophryne nattereri venom. Isolated kidneys of Wistar rats were perfused with a previously dialyzed Krebs-Henseleit solution containing 6 g% bovine serum albumin. The antivenom action was studied through perfusion pressure (PP), renal vascular resistance (RVR), urinary flow (UF) and glomerular filtration rate (GFR). The niquim venom (1 µg/mL), the antivenom alone (1 µg/mL) or the venom incubated with antivenom were added to the system 30 minutes after the beginning of each perfusion. Previous works have...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thalassophryne nattereri; Antivenom; Kidney.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000100011

Antiviral immunity in the Pacific oyster, Crassostrea gigas: last development and perspective
Provedor de dados: 5
Autores: Renault, Tristan; Faury, Nicole; Barbosa, Valerie; Moreau, Kevin; Haffner, Philippe; Pepin, Jean-francois.
Herpes-like viruses have been reported last decades in various marine mollusc species in association with mortality outbreaks throughout the world (Renault &amp; Novoa 2004). One of these viruses isolated during French outbreaks has been characterised as an unassigned member of the Herpesviridae family and named ostreid herpes virus 1 (OsHV-1) or Pacific oyster herpes virus (Davison et al. 2005). Studying anti-viral non-specific defence mechanisms (innate immunity) is of great interest, because they constitute the only one in molluscs. Therefore, innate immunity has be investigated in the Pacific cupped oyster, Crassostrea gigas. The main aim of the work was focused on the identification and the characterisation of genes induced by OsHV-1 in the Pacific...
Tipo: Text
Palavras-chave: Pathoogy; Protein gene; Immunity; Herpesviridae; OsHV 1; Crassostrea gigas; Pacific oyster.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/acte-4035.pdf

Antracnosis del fruto de litchi (Litchi chinensis Soon.) : etiología y control in vitro.
Provedor de dados: 32
Autores: Martínez Bolaños, Misael.
El litchi (Litchi chinensis Soon) es un fruto subtropical. El cultivar Brewster se explota comercialmente en la región del Papaloapan y el cv. Mauritius en los Bajos Mixes, Oaxaca, México. El manchado del pericarpio es uno de los problemas principales en pre y postcosecha del fruto en ambos cultivares. No se han encontrado registros de su causa o importancia en México, por ello los objetivos de esta investigación fueron: determinar la etiología del manchado café del pericarpio e iniciar la exploración del  control in vitro de su agente causal. La antracnosis o manchado del pericarpio del litchi se caracterizó externa e internamente por lesiones circulares de color café, con márgenes bien definidos en el pericarpio, pero sin afectar el arilo o la semilla....
Palavras-chave: Brewster; Mauritus; Pathogenicity; Incidence; PCR; Patogenicidad; Incidencia; Antracnosis; Benomil; Procloraz; Hidróxido de cobre; Doctorado; Fitopatología.
Ano: 2012
URL: http://hdl.handle.net/10521/1701

Antropometry and strength parameterization of lower limb disabled individuals pertinent to agricultural and allied sector applications
Provedor de dados: 111
Autores: HOTA, SMRUTILIPI; Tewari, V.K.; Singh, Gajendra.
Limited anthropometric and strength data availability pertinent to lower limb disabled individuals (DI) restricts agricultural and allied sector application developments. In such pursuit, anthropometric and strength data pertinent to lower limb disabled individuals (DI) from the state of West Bengal (India) was acquired and analyzed. A total of 44 body dimensions and 8 strength parameters of such forty individuals were collected in sitting posture. Mean body weight and height of selected subjects were 52±13 kg (Mean±standard deviation) and 779±39 mm, respectively. Anthropometric parametrization identified twenty-nine body dimensions and four strength parameters to significantly correlate to other body dimensions (Pearson’s correlation [r]: ±0.31-0.52,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthropometry; Lower limb disability; Workplace; Agricultural machinery; Hand reach envelope.
Ano: 2022
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7133

Ants and their effects on an insect herbivore community associated with the inflorescences of Byrsonima crassifolia (Linnaeus) H.B.K. (Malpighiaceae)
Provedor de dados: 92
Autores: Fernandes,G. Wilson; Fagundes,Marcílio; Greco,Magda K. Barcelos; Barbeitos,Marcos Soares; Santos,Jean Carlos.
The effects of ants on the insect community on inflorescences of Byrsonima crassifolia (Malpighiaceae) were tested in an ant exclusion experiment in a cerrado vegetation in southeastern Brazil. Forty-four species of insects (23 families) and nine species of ants (6 genera and 3 subfamilies) were found on the inflorescences of B. crassifolia. The exclusion of ants, primarily Camponotus sericeiventris and Camponotus spp., reduced the treehopper population to 20% of the original abundance. Ant exclusion and time influenced the abundance of chewing (Exclusion, P&lt;0.001; Time, P&lt;0.002), and sucking insects (Exclusion, P&lt;0.02; Time, P&lt;0.01). Twice as many chewing and sucking insects were found on ant-excluded inflorescences as compared to control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ant-treehopper mutualism; Cerrado; Community structure; Insect herbivory.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262005000200011

Ants as carriers of antibiotic-resistant bacteria in hospitals
Provedor de dados: 82
Autores: Moreira,Denise D.O.; Morais,Verônica de; Vieira-da-Motta,Olney; Campos-Farinha,Ana E. de C.; Tonhasca Jr.,Athayde.
The presence of antimicrobial-resistant bacteria and carried by ants isolated from hospitals was investigated in Campos dos Goytacazes, RJ, Brazil. Three health institutions were visited from 2001 to 2002 and samples were collected within critical areas of medical care based on criteria of greater risk of patient hospital acquired-infection. Four ant species were identified, Tapinoma melanocephalum (Fabricius)(63.1%), Paratrechina longicornis (Latreille)(21.1%), Monomorium pharaonis (L.)(10.5%), and Solenopsis saevissima (S. Smith)(5.3%) carrying 21 species of bacteria. The tests for bacteria species identification and antimicrobial-resistance profile were carried out by using standardized kits and evaluated by automated equipment. Among the bacteria...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nosocomial infection; Antimicrobial; Control; Urban ant.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2005000600017

Användning av feromoner för varning och bekämpning av vinbärsskottmal i svarta vinbär
Provedor de dados: 21
Vinbärsskottmal (Lampronia capitella) uppträder som skadedjur i svarta vinbärsodlingar. Artens larver förstör under våren skottknopparna och vid höga populationstätheter kan skadorna medföra stora skördeförluster. Vid ekologisk vinbärsodling är arten mycket svår att bekämpa med nu tillgängliga medel och metoder. Bekämpning med hjälp av artens sexualferomon enligt förvirringsmetoden kan vara ett sätt att öka odlingssäkerheten för ekologiska odlare. Feromonerna kan användas även av konventionella odlare för att fastställa om och när ett bekämpningsbehov finns. För detta andamål behövs kunskap om samband mellan fällfångst och larvangrepp och kunskap om honornas äggläggningsperiod. Vinbärsskottmalens feromon har nyligen identifierats och kan användas direkt i...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023

Anvendelse af falsk såbed, blindharvning og flammebehandling i højværdiafgrøder
Provedor de dados: 21
Autores: Melander, Senior scientist Bo.
På baggrund af nærværende undersøgelse med såløg har det ikke været muligt at påvise væsentlige forskelle mellem blindharvning og flammebehandling anvendt 1-2 dage før løgenes fremspiring. Da blindharvning er en betydelig billigere og mere miljøvenlig metode end flammebehandling, vil det være relevant yderligere at undersøge mulighederne for at anvende blindharvning i højværdiafgrøder.    Undersøgelserne viste også, at tidspunktet for blindharvning godt kan foregå 4-6 dage før fremspiring frem for 1-2 dage før, uden at effekterne mod ukrudt derved svækkes væsentligt. Tidligere blindharvning kan være ønskeligt i øverligt såede kulturer som såløg og -porre for at mindske risikoen for at skade kulturfrøenes kimstængler.     Falsk såbed anvendt i såløg havde...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 1998
URL: http://orgprints.org/1616/1/PLANTV11.pdf

Anxiety and depression in parents of a Brazilian non-clinical sample of attention-deficit/ hyperactivity disorder (ADHD) students
Provedor de dados: 56
Autores: Segenreich,D.; Fortes,D.; Coutinho,G.; Pastura,G.; Mattos,P.
Higher prevalence rates of anxiety and depression have been reported in parents of children with attention-deficit/hyperactivity disorder (ADHD). The interaction between the burden of ADHD in offspring, a higher prevalence rate of this highly inherited disorder in parents, and comorbidities may explain this finding. Our objective was to investigate levels of ADHD, anxious and depressive symptomatology, and their relationship in parents of ADHD children from a non-clinical sample using a dimensional approach. The sample included 396 students enrolled in all eight grades of a public school who were screened for ADHD using the SNAP IV rating scale. Positive cases were confirmed through a semi-structured interview. Parents of all 26 ADHD students and 31 paired...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Attention-deficit/hyperactivity disorder; ADHD; Anxiety; Depression.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000500011

Anxiety and depression symptoms in recurrent painful renal lithiasis colic
Provedor de dados: 56
Autores: Diniz,D.H.M.P.; Blay,S.L.; Schor,N.
Several studies have reported that symptoms of anxiety and depression are significantly associated with diseases characterized by painful crises. However, there is little information about the psychological aspects of recurrent painful episodes of renal stone disease. Our objective was to evaluate the association of symptoms of anxiety, depression and recurrent painful renal colic in a case-control study involving 64 subjects (32 cases/32 controls) matched for age and sex. Cases were outpatients with a confirmed diagnosis of nephrolithiasis as per their case history, physical examination, image examination and other laboratory exams. Patients had a history of at least two episodes within a 3-year period, and were currently in an intercrisis interval. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Renal colic; Lithiasis; Symptoms of anxiety; Symptoms of depression.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000700009

Anxiolytic effects of repeated treatment with an essential oil from Lippia alba and (R)-(-)-carvone in the elevated T-maze
Provedor de dados: 56
Autores: Hatano,V.Y.; Torricelli,A.S.; Giassi,A.C.C.; Coslope,L.A.; Viana,M.B.
Lippia alba (Mill.) N.E. Brown (Verbenaceae) is widely used in different regions of Central and South America as a tranquilizer. The plant’s anxiolytic properties, however, merit investigation. The present study evaluated the effects of repeated daily (14 days) intraperitoneal (ip) treatment with an essential oil (EO) from a chemotype of L. alba (LA, chemotype II, 12.5 and 25 mg/kg; N = 6-8) and (R)-(-)-carvone (25 mg/kg; N = 8-12), the main constituent of this chemotype, on male Wistar rats (weighing 250 g at the beginning of the experiments) submitted to the elevated T-maze (ETM). The ETM allows the measurement of two defensive responses: inhibitory avoidance and one-way escape. In terms of psychopathology, these responses have been related to...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Lippia alba; Essential oil; Carvone; Anxiety; Elevated T-maze.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000300009

Anxiolytic-like effects of 4-phenyl-2-trichloromethyl-3H-1,5-benzodiazepine hydrogen sulfate in mice
Provedor de dados: 56
Autores: Rubin,M.A.; Albach,C.A.; Berlese,D.B.; Bonacorso,H.G.; Bittencourt,S.R.T.; Queiroz,C.M.T.; Maixner,A.E.; Mello,C.F.
The pharmacological effects of 4-phenyl-2-trichloromethyl-3H-1,5-benzodiazepine hydrogen sulfate (PTMB), a novel synthetic benzodiazepine, were examined in mice. In the elevated plus-maze test of anxiety, 0.3-1 mg/kg diazepam ip (F(3,53) = 3.78; P&lt;0.05) and 1-10 mg/kg PTMB ip increased (F(5,98) = 3.26; P&lt;0.01), whereas 2 mg/kg picrotoxin ip decreased (F(3,59) = 8.32; P&lt;0.001) the proportion of time spent in the open arms, consistent with an anxiolytic action of both benzodiazepines, and an anxiogenic role for picrotoxin. In the holeboard, 1.0 mg/kg diazepam ip increased (F(3,54) = 2.78; P&lt;0.05) and 2 mg/kg picrotoxin ip decreased (F(3,59) = 4.69; P&lt;0.01) locomotor activity. Rotarod assessment revealed that 1 mg/kg diazepam ip and 3, 10 and...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Anxiolytic 1; 5-benzodiazepine diazepam elevated plus-maze holeboard picrotoxin.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000900013

Apex, actively positioned exploration system.
Provedor de dados: 5
Autores: Greger, B.
A conceptually new, modularly designed exploration system for the deep sea (600 m) has been constructed and tested. In its base unit, different soil sampling tools can be integrated. These are, for the time being, a drill core barrel with 0 48 mm iD and a length of 500 mm for rocky basements as a box corer for softer soils as well as an orange peel grab. Towed along via a coaxial cable from a research vessel, the system is TV-guided and can be actively positioned by means of 2 thrusters in order to be lowered precisely and horizontally levelled on the seafloor. The total system is operated by the help of an onboard computer and may be controlled by sensor displays and operation messages. Microprocessors control the underwater unit which is partially...
Tipo: Text
Palavras-chave: Marine technology; Mineral exploration; Towed vehicles; Research vessels; Geology; Ocean floor.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/acte-1158.pdf

Apfelproduktion  Überwachung von Qualität und Sicherheit in biologischen Lebensmittelketten
Provedor de dados: 21
Autores: Velimirov, Alberta; Brandt, Kirsten; Lück, Lorna; Wyss, Gabriela; Torjusen, Hanne.
Dieses Informationsblatt zeigt Produzenten und weiteren an der Produktion von Äpfeln beteiligten Fachleuten auf, was zur Optimierung von Qualität und Sicherheit von biologisch erzeugten Äpfeln entlang der gesamten Produktionskette, zusätzlich zu den Zertifizierungsanforderungen und generellen Lebensmittelstandards, gemacht werden kann. Weitere Informationsblätter informieren über die Produktion anderer Lebensmittel oder sprechen Qualitäts- und Sicherheitsbedürfnisse des Handels und der Konsumierenden an.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4906/1/13_Apfel.pdf

Apfelwickler-Granulovirus: Unterschiede in der Empfindlichkeit lokaler Apfelwickler-Populationen
Provedor de dados: 21
Autores: Fritsch, Eva; Undorf-Spahn, Karin; Kienzle, Jutta; Zebitz, Claus P. W.; Huber, Jürg.
This study is part of a BMELV (German Federal Ministry for, Food, Agriculture and Consumer Protection) project on prevention of codling moth damage by long-term population control on large areas. Local codling moth (CM) populations were collected in autumn 2003 from three different orchards in the South of Germany; two of them having been treated with granulovirus of codling moth for many years and one since two years. In autumn 2004, in addition to the three locations from the previous year, specimens from populations in four other orchards with serious CM problems were collected.  The susceptibility of the offsprings of the overwintering larvae to CpGV was investi-gated in the spring of the following year in bioassays on artificial diet and compared to a...
Tipo: Conference paper, poster, etc.
Palavras-chave: "Organics" in general.
Ano: 2007
URL: http://orgprints.org/9723/1/9723_Fritsch_Poster.pdf

Aphid parasitoids (Hymenoptera, Braconidae, Aphidiinae) and their associations related to biological control in Brazil
Provedor de dados: 92
Autores: Starý,Petr; Sampaio,Marcus Vinicius; Bueno,Vanda Helena Paes.
This study evaluated the parasitoid-aphid-plant associations in Brazil with the objective of developing a useful research database for further studies of aphid parasitoid ecology and aphid management. The original material was obtained from collections made in Paraná, Rio Grande do Sul, Minas Gerais, and São Paulo states. The published information on the Aphidiinae in Brazil is revised. The general features of the target parasitoid fauna of Central and South America is summarized and promising biological control programs of some aphid species in Brazil is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aphid; Host range; Insect-plant interactions.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262007000100018

Apical membrane antigen 1 is a cross-reactive antigen between Neospora caninum and Toxoplasma gondii, and the anti-NcAMA1 antibody inhibits host cell invasion by both parasites
Provedor de dados: 19
Autores: Zhang, Houshuang; Compaore, Muller K.A.; Lee, Eung-goo; Liao, Min; Zhang, Guohong; Sugimoto, Chihiro; Fujisaki, Kozo; Nishikawa, Yoshifumi; Xuan, Xuenan.
The cross-reactive antigens of Neospora caninum and Toxoplasma gondii are important in the exploration to determine the common mechanisms of parasite-host interaction. In this study, a gene encoding N. caninum apical membrane antigen 1 (NcAMA1) was identified by immunoscreening of a N. caninum tachyzoite cDNA expression library with antisera. from mice immunized with recombinant T gondii apical membrane antigen 1 (TgAMA 1). NcAMA1 was encoded by an open reading frame of 1695 bp, which encoded a protein of 564 amino acids. The single-copy NcAMA1 gene was interrupted by seven introns. NcAMA1 showed 73.6% amino acid identity to TgAMA1. Mouse polyclonal antibodies raised against the recombinant NcAMA1 (rNcAMA1) recognized a 69-kDa native parasite protein by...
Palavras-chave: Neospora caninum; Toxoplasma gondii; Apical membrane antigen 1; Cross-reactive; Invasion.
Ano: 2007
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1034

Aplicação da função-perda de Taguchi na criação de tilápias do Nilo alimentadas com diferentes níveis de levedura alcooleira
Provedor de dados: 3
Autores: Medri, Vandir; UEL; Pereira, Geni Varéa; UEL; Leonhardt, Júlio Hermann; UEL.
Foram utilizados 240 alevinos de tilápia do Nilo (Oreochromis niloticus), com 45 dias, sexualmente revertidos, com peso médio inicial de 1,25 ± 0,14 g alocados em tanques-rede. Foi avaliado o efeito da substituição de 10%, 20% e 30% de ração por levedura de destilaria sobre a função-perda de Taguchi. Os resultados médios obtidos nos parâmetros limnológicos para o controle da qualidade da água, através da análise química, foram normais. As perdas de Taguchi para a produção total, para os peixes mortos e descartados não revelaram uma correlação para os diferentes níveis de inclusão de levedura alcooleira, indicando que a escolha do nível de levedura na ração, para esses peixes, depende da sua disponibilidade e custo ocasional.
Palavras-chave: 2.00.00.00-6    Ciências Biológicas levedura; Qualidade; Ração; Taguchi; Tanque-rede; Tilápia 2.00.00.00-6    Ciências Biológicas.
Ano: 1999
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4439

Aplicação da radiação ultravioleta-C para controle da podridão peduncular do mamão.
Provedor de dados: 14
Autores: TERAO, D.; SASAKI, F. F. C.; NECHET, K. de L.; FRIGHETTO, R. T. S.; KONDA, E. T.
A podridão peduncular em mamão é fator limitante na comercialização, principalmente para exportação. Os objetivos do presente trabalho foram definir doses de luz ultravioleta C (UV-C) que inibem a germinação de esporos dos fungos do complexo causador da podridão peduncular, bem como avaliar doses de UV-C no controle da doença nos frutos. Suspensões de esporos foram irradiadas com doses variando de 0,25 a 2,00 kJ m -2 plaqueadas e após 72h avaliou-se a inibição na germinação pela contagem de Unidade Formadora de Colônias (UFC). Em teste in vivo irradiou-se a região peduncular do fruto com doses de 0,5 a 2,0 kJ m -2 . Após irradiados, os mamões foram armazenados durante sete dias em câmara fria e oito dias em temperatura ambiente, avaliando-se, diariamente,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: UV-C; Doença pós-colheita; Doença de Planta; Mamão; Podridão Peduncular; Raio Ultravioleta; Irradiação Luminosa; Papayas; Postharvest diseases; Foot rot (plant); Ultraviolet radiation; Physical control.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1111457

Aplicação de ácido giberélico (GA3) em précolheita de tangerina ‘Poncã’ (Citrus reticulata blanco) - DOI: 10.4025/actasciagron.v28i1.1297
Provedor de dados: 1
Autores: Modesto, Júnior Cesar; Botagro Consultoria Agropecuária; Rodrigues, João Domingos; UNESP; Ono, Elizabeth Orika; UNESP; Habermann, Gustavo; UNESP.
O experimento foi instalado em pomar comercial de tangerineira ‘Poncã’ (Citrus reticulata Blanco), enxertadas sobre tangerineira ‘Cleópatra’ (Citrus reshni Hort. ex Tan.), em Pratânia, Estado de São Paulo, Brasil. Adotouse o delineamento experimental em blocos casualizados com 4 repetições. Os tratamentos empregados foram: 0 (controle), 5, 10, 15 e 20 mg L1 de ácido giberélico (GA3). A aplicação dos tratamentos foi realizada com atomizador tratorizado. Na mudança de coloração dos frutos, utilizaramse 5,9 litros de solução por planta, com adição de 0,03% de surfatante não iônico com 25% de Alquil fenol poliglicoléter. As análises da qualidade dos frutos foram realizadas aos 13, 45, 75 e 111 dias após a aplicação dos tratamentos (DAT). Não se verificou...
Palavras-chave: 5.01.03.00-8    Fitotecnia giberelina; Citrus; Tangerineira ‘Poncã’; Fitorregulador; Précolheita; Maturação 5.01.03.00-8    Fitotecnia.
Ano: 2006
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1297

Aplicação de métodos de biofísica no estudo da eficácia de produtos dermocosméticos
Provedor de dados: 60
Autores: Gonçalves,Gisele Mara Silva; Campos,Patrícia Maria Berardo Gonçalves Maia.
O trabalho aborda a aplicação dos métodos de biofísica no estudo de eficácia de produtos dermocosméticos. A qualidade de um produto cosmético engloba a segurança de seu uso, a estabilidade da formulação, o aspecto, o sensorial e a sua eficácia. As técnicas de biofísica têm sido amplamente empregadas na avaliação do efeito de formulações dermocosméticas, principalmente devido ao fato de possibilitarem a avaliação de produtos em suas reais condições de uso, ou seja, na pele humana. A comprovação dos efeitos de produtos cosméticos e a elucidação de seu mecanismo de ação por meio de protocolos experimentais devidamente elaborados, que utilizem as técnicas de biofísica da pele, dentre outras, tornam-se de fundamental importância e, assim, a serem amplamente...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Produtos dermocosméticos/controle de qualidade; Pele/biofísica; Pele/estudo; Biofísica/técnicas; Biofísica/aplicação em cosmetologia; Cosméticos/eficácia; Dermocosmetic products/quality control; Skin/biophysics; Skin/study; Biophysics/techniques; Biophysics/cosmetologic application; Cosmetics/effectiveness.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000100002

Aplicação foliar de doses de bioestimulante em duas épocas na cultura do feijoeiro
Provedor de dados: 196
Autores: Lopes, Wytalo Oliveira; Varão, Lorenna Correia; Buso, Wilian Henrique Diniz.
Salinity is one of the environmental stresses that most affects plants' vital processes, especially germination. Brassinosteroids, including 24-epibrassinolide (EBL), have multiple actions in essential processes in plants. Thus, this research's objective was to evaluate the effects of EBL on tomato seeds' physiological conditioning on germination, growth, and production of dry seedling mass under salinity conditions. The experiment was carried out in a 2x5 factorial scheme, as follows: two concentrations of EBL (0 and 10-6 M) and five levels of salinity (0.5 control; 1.5; 3.0; 4.5 and 6.0 dS m-1), consisting of ten treatments, with four replications of 50 seeds. In isolation, the salt stress reduced the percentage of germination and germination speed index...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Biostimulant; Phytohormones; Phaseolus vulgaris; Bioestimulante; Fitohormônios.
Ano: 2022
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6981

Aplicação localizada de herbicidas.
Provedor de dados: 14
Autores: SHIRATSUCHI, L. S.; CHRISTOFFOLETI, P. J.; FONTES, J. R. A.
ABSTRACT: Curent interest in site-specific weed control considering the weed spatial variability is increasing nowadays, when economical and environmental aspects are considered. This paper reviews the patch spraying methods for herbicides application systems regarding the economical and technical aspects. Using this new approach high herbicides savings are possible, maintaining the efficacy of chemical control using the site-specific herbicide applications, and consequently reducing the environmental impact of the broadcast application of herbicides.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Planta daninha; Precision farming; Agricultural chemicals.; Agricultura de Precisão; Defensivo; Controle Químico; Herbicida; Pulverização.; Chemical control; Herbicides; Spraying; Weeds.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/568141

APLICACIÓN DE LA HEMOAGLUTINACIÓN EN HECES PARA EL DIAGNÓSTICO DE BROTES DE DISENTERÍA INVERNAL BOVINA
Provedor de dados: 101
Autores: Barrera,Maritza; Betancourt,A; Relova,Damarys; Perera,Carmen L; Rodríguez,Dalia; Brandão,Paulo E.
La disentería de invierno es una enfermedad infecciosa del bovino, altamente contagiosa, de curso agudo producida por coronavirus bovino (BCoV), que se caracteriza por la producción de diarreas epizoóticas y la dramática disminución de la producción de leche de las vacas en ordeño. Después de diagnosticada por primera vez, en el país existía la necesidad de desarrollar una técnica sencilla, de bajo costo, y con la que se pudiera analizar un gran número de muestras. Se obtuvo un antisuero específico y se estandarizó el ensayo basado en la aglutinación de eritrocitos de hámster para detectar la presencia del virus en heces fecales de bovinos enfermos y su identificación mediante la inhibición de la hemaglutinación empleando el antisuero obtenido. La prueba...
Tipo: Journal article
Palavras-chave: Disentería invernal; Coronavirus bovino; Prueba de hemoaglutinación; Diagnóstico.
Ano: 2008
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2008000300006

Aplicación de plantas medicinales para la antisepsia de pezones de vacas posordeño
Provedor de dados: 98
Autores: Almeida Schiavon,Diane Bender; Damé Schuch,Luiz Filipe; Bastos Oyarzabal,Marta Elaine; de Souza Prestes,Luciana; Zani,João Luiz; de Andrade Hartwig,Carla.
Introducción: el sistema de producción de leche agroecológico está limitado por alternativas sostenibles de promoción a la salud animal. El control de la mastitis con plantas medicinales puede ser viable de modo económico y ecológicamente. Objetivos: evaluar la aplicación de antisépticos en la desinfección de pezones posordeño. Métodos: se comparó un convencional y extracto de plantas medicinales en un rebaño comercial y tuvo como principal encierre las nuevas infecciones intramamarias. Resultados: la prevalencia semanal del California Mastitis Test varió en el grupo 1 entre 29,5 y 17,1 %, y en el grupo 2 de 29,7 a 19,6 %, no diferenciándose de modo significativo, en ninguna de las semanas. La incidencia de cultura positiva para...
Tipo: Journal article
Palavras-chave: Mastitis; Plantas medicinales; Tagetes minuta.
Ano: 2011
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962011000300005

Aplicación de sucralosa a cerezas orgánicas cv. Sweetheart® en atmósfera modificada y su aceptación sensorial
Provedor de dados: 109
Autores: López,Nelson Loyola; Hernández Valenzuela,Patricio; Pino Torres,Carlos.
Cerezas cv. Sweet Heart® de un cultivo orgánico en la comuna de Los Angeles, región del BíoBío, Chile, sometidas a los tratamientos:T0, control; T1, con 1.5% de sucralosa y T2, con 2.0% sucralosa. Se almacenaron en cajas de 5 kg con bolsas FreshView en A.M., conservadas por 20, 35 y 50 días a temperatura de 0 ± 0.5 °C y humedad relativa de 90 ± 0.5%. Después de 35 dias, las cerezas con el tratamiento (T1) exhibieron la menor pérdida de peso. Esta tendencia fue mantenida al día 50, al utilizar sucralosa (T1 y T2), con menor pérdida de peso respecto al tratamiento T0. La fruta con cobertura, mostró una leve disminución en la presión de pulpa, pero siempre sobre el valor límite menor recomendado en unidades Durofel. La sucralosa aplicada permitió incrementar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coberturas protectoras; Post cosecha; Almacenamiento cereza.
Ano: 2014
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122014000200003

Aplicación de tratamiento térmico, recubrimiento comestible y baño químico como tratamientos poscosecha para la conservación de hortalizas mínimamente procesadas
Provedor de dados: 109
Autores: Hernández,Alejandro Escobar; Márquez Cardozo,Carlos Julio; Restrepo Flores,Claudia Estela; Cano Salazar,Jaime Andrés; Patiño Gómez,Jairo Humberto.
El consumo creciente ha estimulado el desarrollo de los vegetales cuarta gama o mínimamente procesados. Actualmente, se promueve el uso de tecnologías aplicadas a estos productos que les brinden mayor duración y garanticen la reducción de pérdidas poscosecha. En esta investigación se evaluó el efecto de tres de estas tecnologías poscosecha sobre la intensidad de la respiración y la calidad sensorial general de las hortalizas mínimamente procesadas: brócoli (Brassica oleracea var. Itálica), coliflor (Brassica oleracea var. Botrytis), zucchini (Cucurbita pepo L.), apio (Apium graveolens), zanahoria (Daucus carota) y chayote (Sechium edule). Para el recubrimiento comestible se utilizó pectina de bajo metoxilo (2%), cera carnauba (1%), glicerol (1.5%) y ácido...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hortalizas; Propiedades sensoriales; Respiración; Tecnologías poscosecha.
Ano: 2014
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122014000100001

Aplicación de un indicador de moral tributaria al desarrollo de estrategias de control y servicio
Provedor de dados: 122
Autores: Rojas Dávila, Muman.
La definición de moral califica los actos humanos en buenos o malos, acertados o erróneos según la guía de un grupo social específico. Este primer análisis descriptivo toma datos de la Encuesta de Satisfacción del Contribuyente, realizada en noviembre del 2007 por el INEC bajo pedido del Servicio de Rentas Internas de Ecuador tomando, entre algunas de sus preguntas, las mediciones asociadas a percepción del contribuyente sobre temas de evasión, control y sanción; así como de la imagen del SRI. Se realizó entonces una reducción de las preguntas relacionadas en términos de dos variables reducidas no observables: La imagen del SRI y la percepción que tienen los contribuyentes sobre su entorno en términos de cumplimiento voluntario. Las variables reducidas se...
Tipo: Artículo
Palavras-chave: INDICADORES ECONÓMICOS; MORAL TRIBUTARIA; ADMINISTRACIÓN TRIBUTARIA; CONTRIBUYENTES; SERVICIO DE RENTAS INTERNAS (SRI); EVASIÓN TRIBUTARIA; ECUADOR; ECONOMIC INDICATORS; TAX MORALE; TAX ADMINISTRATION; TAXPAYERS; INTERNAL REVENUE SERVICE; TAX EVASION.
Ano: 2010
URL: http://hdl.handle.net/10469/3875

Aplicación de un indicador de moral tributaria al desarrollo de estrategias de control y servicio
Provedor de dados: 122
Autores: Rojas Dávila, Muman.
La definición de moral califica los actos humanos en buenos o malos, acertados o erróneos según la guía de un grupo social específico. Este primer análisis descriptivo toma datos de la Encuesta de Satisfacción del Contribuyente, realizada en noviembre del 2007 por el INEC bajo pedido del Servicio de Rentas Internas de Ecuador tomando, entre algunas de sus preguntas, las mediciones asociadas a percepción del contribuyente sobre temas de evasión, control y sanción; así como de la imagen del SRI. Se realizó entonces una reducción de las preguntas relacionadas en términos de dos variables reducidas no observables: La imagen del SRI y la percepción que tienen los contribuyentes sobre su entorno en términos de cumplimiento voluntario. Las variables reducidas se...
Tipo: Artículo
Palavras-chave: INDICADORES ECONÓMICOS; MORAL TRIBUTARIA; ADMINISTRACIÓN TRIBUTARIA; CONTRIBUYENTES; SERVICIO DE RENTAS INTERNAS (SRI); EVASIÓN TRIBUTARIA; ECUADOR; ECONOMIC INDICATORS; TAX MORALE; TAX ADMINISTRATION; TAXPAYERS; INTERNAL REVENUE SERVICE; TAX EVASION.
Ano: 2010
URL: http://hdl.handle.net/10469/3875

APLICACIÓN DE UN MODELO MÚLTIPLE DE CURVA DE LACTANCIA PARA VACAS LECHERAS
Provedor de dados: 113
Autores: Pedraza G.,Carlos; Mansilla M.,Alberto; Jahn B.,Ernesto; Vidal V.,Agustín; Fajardo R.,Paola; Agüero E.,Hernán.
El objetivo del presente trabajo fue probar una nueva expresión matemática destinada a mejorar la interpretación de los recuentos de células somáticas y niveles de producción de leche. Un modelo múltiple de curva de lactancia se comparó con el modelo clásico de Wood, separadamente para cada uno de los rangos celulares (RC). Se trabajó con una base de datos depurada proveniente del control sistemático de cinco rebaños lecheros que representan una masa de 1200 vacas Holstein Friesian. Se ajustó una curva de producción de leche, separadamente para vaquillas y vacas, mediante la expresión y(t) = a t b e- c t. El modelo múltiple propuesto estuvo basado en la ecuación anterior, incorporando la variable RC en la forma y (t, RC = a t b e- c t e d RC + f RC2. El...
Tipo: Journal article
Palavras-chave: Modelo matemático; Células somáticas; Producción láctea; Mastitis.
Ano: 2002
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072002000400003

Aplicación localizada de spirotetramat y spiromesifen en Capsicum chinense (Jacq) y su efecto en la oviposición de Bactericera cockerelli (Sulc) (Hemíptera: Triozidae).
Provedor de dados: 32
Autores: Tucuch Haas, Jorge Ismael.
El psílido del tomate/papa Bactericera cockerelli (Sulc) (Hemiptera: Triozidae) es una de las plagas más importantes del cultivo de solanáceas en el mundo. Spirotetramat y spiromesifen ambos insecticidas son del grupo de los inhibidores de la síntesis de lípidos que se usan para combatir esta plaga y para optimizar su eficacia biológica es importante conocer sus propiedades entomotóxicas. Por tanto, se determinó el efecto de la aplicación de los dos insecticidas en la oviposición de B. cockerelli en áreas tratadas y no tratadas del follaje de plantas de chile habanero (Capsicum chinense (Jacq)). El follaje de cada planta se dividió en tres estratos: superior (21 a 30 cm distales del sustrato de la planta), medio (11 a 20 cm abajo del estrato superior) e...
Palavras-chave: Acidos tetrónicos; Inhibidores de lípidos; Paratrioza; Solanáceas; Manejo de la resistencia; Tetronic acids; Zebra chip; Inhibitors of lipids; Potato/tomato psyllid; Solanaceae; Resistance management; Entomología y Acarología; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/1870

Aplicações seqüenciais de flumicloracpentil para o controle de Euphorbia heterophylla na cultura da soja - DOI: 10.4025/actasciagron.v28i1.1691
Provedor de dados: 1
Autores: Oliveira Júnior, Rubem Silverio de; Fitotecnia - UEM; Constantin, Jamil; UEM; Toledo, Roberto; UEM; Kajihara, Luciano Hiroyuki; UEM; Stasieviski, Ângelo; UEM; Arantes, João Guilherme Zanetti de; UEM; Pagliari, Paulo Humberto; UEM; Cavalieri, Sidnei Douglas; UEM; Alonso, Diego Gonçalves; UEM; Roso, Ana Carolina; UEM.
Euphorbia heterophylla destacase como a principal planta daninha na cultura da soja no Estado do Paraná, não só pela sua disseminação, mas também pela natural dificuldade de controle e pela ocorrência de biótipos que apresentam resistência. Em face de tais problemas, buscouse avaliar a eficácia de aplicações seqüenciais em pósemergência de flumicloracpentil no controle dessa planta daninha. As aplicações seqüenciais de flumicloracpentil foram superiores, em termos de eficácia, às doses recomendadas em aplicação única, promovendo no mínimo 86% de controle aos 24 dias após a aplicação da segunda etapa das seqüenciais. Todas as combinações de doses de flumicloracpentil avaliadas promoveram controle adequado de E. heterophylla, desde que aplicadas no estádio...
Palavras-chave: 5.01.02.00-1    Fitossanidade eficácia; Leiteiro; Herbicidas; Fomesafen; Inibidores da PROTOX; Lactofen 5.01.02.00-1    Fitossanidade.
Ano: 2006
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1691

Apolipoprotein B and angiotensin-converting enzyme polymorphisms and aerobic interval training: randomized controlled trial in coronary artery disease patients
Provedor de dados: 56
Autores: Tamburus,N.Y.; Verlengia,R.; Kunz,V.C.; César,M.C.; Silva,E.
Physical training has been strongly recommended as a non-pharmacological treatment for coronary artery disease (CAD). Genetic polymorphisms have been studied to understand the biological variability in response to exercise among individuals. This study aimed to verify the possible influence of apolipoprotein B (ApoB: rs1042031 and rs693) and angiotensin-converting enzyme (ACE-ID: rs1799752) genotypes on the lipid profile and functional aerobic capacity, respectively, after an aerobic interval training (AIT) program in patients with CAD and/or cardiovascular risk factors. Sixty-six men were randomized and assigned to trained group (n=32) or control group (n=34). Cardiopulmonary exercise test was performed to determine the ventilatory anaerobic threshold...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Physical training; Lipids; Apolipoprotein B polymorphism; Angiotensin-converting enzyme polymorphism; Aerobic capacity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000800601

Apolipoprotein E polymorphism in Brazilian dyslipidemic individuals: Ouro Preto study
Provedor de dados: 56
Autores: Mendes-Lana,A.; Pena,G.G.; Freitas,S.N.; Lima,A.A.; Nicolato,R.L.C.; Nascimento-Neto,R.M.; Machado-Coelho,G.L.L.; Freitas,R.N.
The influence of apolipoprotein E alleles and genotypes on plasma lipid levels was determined in 185 individuals of mixed ethnicity living in Ouro Preto, Brazil. DNA was obtained from blood samples and the genotypes were determined by an RFLP-PCR procedure. The *3 allele was the most frequent (72%), followed by *4 (20%) and *2 (8%); *4 frequency was higher and *2 frequency was lower in the dyslipidemic group than in the normal control group. The *2 carriers presented lower LDL and total cholesterol levels compared to the *3 and *4 carriers. All six expected genotypes were observed in the individuals genotyped: E2/2 (2.1%), E4/4 (2.7%), E2/4 (3.7%), E2/3 (8.0%), E3/3 (53.3%), E3/4 (29.9%); no difference in genotype frequencies was found between the normal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apolipoprotein E polymorphism; Lipids; Dyslipidemia; Brazilian population; Atherosclerosis.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000100007

Apoptosis and Histopathology of the Heart after Renal Ischemia-Reperfusion in Male Rat Running title: Ischemia-Reperfusion Injury
Provedor de dados: 52
Autores: Alihemmati,Alireza; Yousefi,Hadi; Ahmadiasl,Naser; Habibi,Parisa.
ABSTRACT Ischemia-reperfusion injury was seen in strokes, myocardial infarctions, acute kidney injury, mesenteric ischemia, liver and systemic shock. Renal ischemia-reperfusion is more importance in the setting of kidney transplantation that affects distant organs. In this study forty Male Albino Wistar rats (200-250g) were randomly divided in four group (n=10) including control, sham operation group, nephrectomy and IRI group. All rats anesthetized with intraperitoneal injection of ketamine (50 mg/kg) and xylazine (10 mg/kg) and maintained the core body temperature at approximately 37°C. For inducing IRI group, it was performed right nephrectomy, and in continuing, the left kidney pedicle occluded to 45 min via nontraumatic microvascular clamp for making...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Renal Ischemia-reperfusion injury; Glycogen accumulation; Apoptosis; Heart; Rat.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100443

Apoptosis in Bone Defect of Diabetic Rats Treated with Low Intensity Laser: Radiological and Immunohistochemical Approach
Provedor de dados: 77
Autores: da Silva,Jairo Pinheiro; de Carvalho,Camila Albuquerque Mello; Romualdo,Andressa Rodrigues; Schiavoni,Vagner Sarraipo; Barbosa,Marcello Henrique Nogueira; de Moraes,Marcella Suélen Torrecilla; Tirapelli,Daniela Petri Cunha; Fazan,Valéria de Paula Sassoli; Thomazini,José Antônio; Tirapelli,Luis Fernando.
The aim of this study is evaluate the efficacy of 904 nm laser diode in bone regeneration in the bone defect in diabetic rats. Six groups of 10 male Wistar rats and 2 mm bone defects drilled on the left and right tibia were used. The diabetic animals were treated with streptozotocin (40 mg/kg, i.v.). We compared the diode laser doses of treatment of bone defects 50 w ­ 4 J/cm and 100 w ­ 4J/. The right tibia was used for immunohistochemical analysis with the apoptosis markers XIAP and Caspase-3 and the left tibia was submitted to computer tomography (CT). Caspase-3 marker showed greater amount of apoptosis in all the untreated groups compared to both laser treatments. There was no statistical significance for XIAP marker. CT scan showed improvement of bone...
Tipo: Journal article
Palavras-chave: Bone defect; Diabetes mellitus; Laser therapy; Regeneration; Apoptosis.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100029

Apoptosis in Denervated Skeletal Muscle
Provedor de dados: 77
Autores: Davatz,Giovanna Castilho; Andreo,Jesus Carlos; Rodrigues,Antonio de Castro; Rosa Júnior,Geraldo Marco; Moraes,Luiz Henrique Rapucci.
The apoptosis phenomenon happens in normal tissues and in many pathological conditions as described by several researchers. Most studied in the 70s, this phenomenon remained almost forgotten in the 90s, when, with the advent of more advanced techniques, returned to laboratories. Thus, electronic microscopy, Comet Assays and histochemistry techniques, among others, were utilized in an effort to elucidate in a thorough way, the mechanisms that lead the cell to "suicide". No one can deny the importance of the knowledge of such phenomenon, so as to control its induction or blocking in the treatment of pathologies such as cancer. In this work, the apoptosis study was aimed at denervated muscles in different periods. Furthermore, two types of skeletal striated...
Tipo: Journal article
Palavras-chave: Skeletal muscle; Denervation; Apoptosis; Rat.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300009

Apoptosis induction by E2F decoy DNA of the prostate cancer cell line
Provedor de dados: 52
Autores: Wang,Tao; Jiang,An -li; Zhang,Jian-ye; Jing,Fei.
To observe effect of E2F decoy DNA on proliferation and apoptosis of androgen-independent prostate cancer cell line PC-3M the binding specificity of the E2F decoy DNA to the PC-3M nuclear protein was detected by electrophoretic mobility shift assay (EMSA). E2F decoy DNA, ARE decoy DNA and Control decoy DNA were respectively transfected into PC-3M cells with lipofectamine.Their influence on cell proliferative activity was detected by MTT assay.The cell apoptotic rate was determined by flow cytometric(FCM) analysis and chromosome DNA ladder was detected by DNA gel electrophoresis.The change of mRNA expression of C-myc and CyclinD1 were detected by RT-PCR.The change of mRNA expression of C-myc and CyclinD1 were detected by Western-blot. EMSA demonstrated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Decoy DNA; Transcription factors; PC-3M cells; Apoptosis.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200011

Aportes de nitrógeno y fósforo de tres sistemas agrícolas de la cuenca hidrográfica "El Jihuite", en Jalisco, México
Provedor de dados: 115
Autores: Flores-López,Hugo E.; Carrillo-González,Rogelio; Francisco-Nicolás,Nestor; Hidalgo-Moreno,Claudia; Ruíz-Corral,José A.; Casteñeda-Villanueva,Aldo A.; Velazco-Nuño,Raymundo.
La cuenca hidrográfica El Jihuite tiene como embalse a la presa del mismo nombre, reservorio de agua usado para la población de Tepatitlán, en Jalisco, México. Sin embargo, se ha identificado el problema de eutrofización del agua de la presa y como factor limitante al fósforo, pero se desconocen los procesos en los terrenos con uso agropecuario donde se origina el enriquecimiento de este nutrimento en dicho embalse. Se evaluó la pérdida de nitrógeno y fósforo generada por los cultivos de maíz, agave tequilero y pastos a escala de lote de escurrimiento, con el objetivo de cuantificar los nutrimentos que salen de estos sistemas agrícolas e identificar los procesos asociados con la eutrofización de la presa el Jihuite. Se observó que la pérdida de nitrógeno...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Contaminación no puntual; Cuenca hidrográfica El Jihuite; Fósforo; Nitrógeno.
Ano: 2009
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952009000700001

App for mobile devices for the control of bovine fasciolosis (ProPara)
Provedor de dados: 21
Autores: van der Meijden, Chris; Knubben-Schweizer, G.
App for mobile devices or PC with decision tree to control bovine fasciolosis based on the farm-specific epidemiological situation.  The App is available in English and German (depends on the language of the mobile device).
Tipo: Practice tool
Palavras-chave: Beef cattle; Health and welfare.
Ano: 2018
URL: http://orgprints.org/33693/1/propara.apk

Apparent Faecal Digestibility of Essential Amino Acids from Ω3 Pufa Diets for Laying Hens
Provedor de dados: 89
Autores: Varzaru,I; Panaite,TD; Cornescu,GM; Olteanu,M.
ABSTRACT The apparent faecal digestibility of the essential amino acids from Ω3 PUFA layer diets and feeding solutions to avoid possible adverse effects of such diets were investigated in two experiments conducted on Lohmann Brown laying hens. Experiment 1 used 72 layers assigned to three groups (C1, E1-1, E2), while experiment 2 used 96 layers assigned to four groups (C2, E1-2, E3, E4). All experimental diets have been enriched in Ω 3 PUFA by supplementing a conventional diet (C1, C2) with 5% flaxseed meal and 2% camelina meal. Diets E2 and E4 had an increased level of Cu (150 mg/kg), diets E3 and E4 were supplemented with 0.0125% enzyme mix, while diets E1-1 and E1-2 were only supplemented with 5% flaxseed meal and 2% camelina meal. The digestibility...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acid digestibility; PUFA enriched diets; Laying hen.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300317

Appearance and spread of diseases among bivalve molluscs in the northern hemisphere in relation to international trade
Provedor de dados: 5
Autores: Renault, Tristan.
Bivalve mollusc culture is a well-developed marine aquaculture activity in many countries around the world, notably in the northern hemisphere. During the development of this activity, numerous countries have been confronted with infectious diseases of varying severity and duration. Research has been conducted to determine the aetiology, epidemiology and control measures for these epizootics. Major epizootics in bivalve molluscs have been caused by viruses, bacteria, fungi and protozoan parasites. Moreover, important commercial relations exist in marine mollusc culture between different geographical areas. This must be taken into account in explaining the appearance and the spread of some infectious diseases in several countries around the world. The...
Tipo: Text
Palavras-chave: Northern hemisphere; International trade; Infectious diseases; Bivalve molluscs; Mollusques bivalves; Maladies infectieuses; Hémisphère Nord; Commerce internatioanal.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-2913.pdf

Apple scab control with grapefruit seed extract: no alternative to chemical fungicides
Provedor de dados: 21
Autores: Spitaler, Renate; Marschall, Klaus; Zidorn, Christian; Kelderer, Markus; Zelger, Roland; Stuppner, Hermann.
The growth inhibiting effect of four commercially available grapefruit seed extracts  on the causal organism of apple scab  Venturia inaequalis was tested. Germination of  the conidia of Venturia inaequalis was pronouncedly inhibited by all tested extracts.  The commercial products were analyzed by high pressure liquid chromatography and  thin layer chromatography. All samples contained at least one preserving agent.  These substances were identified as either benzethonium chloride, benzalkonium  chloride, methyl parabene or propyl parabene. Freshly prepared extracts from seeds  of grapefruits (Citrus paradisi) did not inhibit the germination of Venturia inaequalis. It  was therefore concluded that the antifungal effect of grapefruit seed extracts is...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004
URL: http://orgprints.org/14543/1/39_Kelderer_208_211.pdf

Apple scab (Venturia inaequalis)and induced resistance.
Provedor de dados: 21
Autores: Kromann Jensen, BSc.stud. Susanne.
This B.Sc project report presents an introductory review of the apple scab pathothosystem and induced resistance both generally and related to Malus, Venturia inaequalis and the resistance-inducing compound Bion. The project describes experiments performed with the resistance-inducer Bion to control scab.
Tipo: Report
Palavras-chave: Fruit and berries.
Ano: 2003
URL: http://orgprints.org/1514/1/BSc_SKJ.pdf

Applicability of the national nosocomial infections surveillance system risk index for the prediction of surgical site infections: a review
Provedor de dados: 55
Autores: Ercole,Flávia Falci; Starling,Carlos Ernesto Ferreira; Chianca,Tânia Couto Machado; Carneiro,Mariângela.
This review outlines the evolution of risk rates of surgical site infection adopted by the Study on the Efficacy of Nosocomial Infection Control (SENIC) and the National Nosocomial Infections Surveillance (NNIS) system, and evaluates their advantages and limitations. The types of surgical procedures for which the NNIS index has proven to be an efficient system for the classification of patients are presented. The necessity of adapting the NNIS index to take into account specific characteristics associated with hospitals and practices in various regions and countries is stressed. The requirement for further testing and development of the rate concerning specific procedures, particularly those involving orthopaedic surgery, is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: SSI/NNIS Index; Quality indicators; Hospital infections; Surgical procedures; Orthopaedic operations.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000100028

Application forms and mode of action of biocontroller in the management of Meloidogyne incognita in tomato
Provedor de dados: 75
Autores: Frederic,Jean B; Costa,Cândido A da; Rocha,Fernando da S; Fernandes,Maria de Fátima G.
ABSTRACT Mixture of antagonist agents and form of application may influence in the control of root-knot nematodes. Thus, the aim of this work was to study the action of a biological product based on enzyme mixtures, Bacillus sp. and Trichoderma sp., at different concentrations on hatching, motility, mortality and reproduction of Meloidogyne incognita in tomato, considering two ways of application of the product. Eggs and second-stage juveniles (J2) of M. incognita were placed in biological product solutions at concentrations: 0, 1.25, 2.5, 5, 10, 20 and 40 g L-1. The same concentrations were applied to planting pits or to the soil surface. Afterwards, 3,692 eggs of M. incognita were inoculated in tomato crop. A significant reduction in J2 hatching of M....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus spp.; Trichoderma longibrachiatum; Root-knot nematodes; Enzymes; Biological control.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000300254

APPLICATION HEIGHT IN HERBICIDES EFFICIENCY IN BEAN CROPS
Provedor de dados: 87
Autores: PEREIRA,G. A. M.; BARCELLOS JR,L. H.; SILVA,D. V.; BRAGA,R. R.; TEIXEIRA,M. M.; SILVA,A. A.; RIBEIRO JR,J.I.
ABSTRACTInadequate herbicide application can result in failures in weed control and/or poisoning of the crops, resulting in yield losses. In this research were assessed the effects of the sprayer nozzle boom height in the distribution of the spray solution for weed control, influencing intoxication of beans and crop yield. Experiments were conducted in laboratory and field conditions. In laboratory, the performance of flat spray tip TT 11002 was assessed at heights 0.20, 0.30, 0.40 and 0.50 meters with respect to the target surface. In the field the same heights were assessed in applications of herbicides fomesafen, fluazifop-P-butyl and fomesafen + fluazifop-P-butyl. There was an inverse relationship between the height of the spray boom and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Application technology; Mixture of herbicides.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000300607

Application methods and dosages of thiamethoxam in thrips control on tomato plants
Provedor de dados: 75
Autores: Raetano,Carlos Gilberto; Kobayashi,Marco Roberto; Kuwahara,Wagner Roberto; Vinchi,Rodrigo R.
Thrips is one of the most important vector species of the tomato spotted wilt tospovirus (TSWV) in Brazil. Two different pesticide application methods, drench x spray, using thiamethoxam were compared with commonly used insecticides for thrips control in tomato plants, Debora Plus. The experimental design consisted of a complete randomized block design with seven treatments and four replicates. Dosages of 150 and 200 g of a.i. per ha were used in just one drench application and 50 g of a.i. ha-1 sprayed, at weekly intervals, 48 days after sowing. The control efficacy of thiamethoxam was compared to diafenthiuron (400 g of a.i. ha-1), profenofos + cypermethrin (320+32 g of a.i. ha-1, respectively) and methamidophos (60 g of a.i. per hectolitre of water) in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Frankliniella schultzei; Drench application; Spraying; Chemical control.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362003000300002

Application of active films with natural extract for beef hamburger preservation
Provedor de dados: 65
Autores: Lagos,Maria Jeannine Bonilla; Sobral,Paulo José do Amaral.
ABSTRACT: Edible chitosan-based films, in pure form (CH100), or blended with gelatin (GEL50:CH50), with and without boldo extract (B) were prepared. The oxygen permeability of the films, as well as color changes and antioxidant and antimicrobial activities on beef hamburgers samples were evaluated. CH100+B film exhibited optimal oxygen barrier properties (6.40±0.170cc-mL/[m²-day]), and this value was significantly increased in blended films (GEL50:CH50+B = 12.99±1.50cc-mL/[m²-day]) (P&lt;0.05). All films provoked color changes in hamburger samples during storage, and the samples covered with CH100+B film showed a lower brightness and a higher redness. All films effectively protected beef hamburger from lipid oxidation, and boldo extract incorporation in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beef hamburger; Active-edible films; Natural extract; Antimicrobial activity; Lipid oxidation; Preservation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100752

Application of an Enzymatic Extract from Aspergillus niger as Coagulant for Cheddar Cheese Manufacture
Provedor de dados: 52
Autores: Lombardi,Julia; Ciocia,Felicia; Uniacke-Lowe,Thérèse; Boeris,Valeria; Risso,Patricia; McSweeney,Paul L. H.
Abstract The coagulation of milk by a serin protease from Aspergillus niger NRRL3 was studied by rheology. Cheddar-type cheese was manufactured using 3.5% (v/v) of fungal enzymatic extract and fermentation-produced chymosin was used as control coagulant. Full composition and ripening of both kinds of Cheddar cheese were studied. Differences in the proteolysis of caseins, not only during cheese manufacture but also during ripening, affected cheese composition, texture and peptide profile. Microbial development during ripening was not affected by the coagulant used.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microbial coagulant; Cheese; Biochemistry during ripening.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100509

Application of brassinosteroid to Tabebuia alba (Bignoniaceae) plants
Provedor de dados: 93
Autores: ONO,ELIZABETH ORIKA; NAKAMURA,TERUKO; MACHADO,SÍLVIA RODRIGUES; RODRIGUES,JOÃO DOMINGOS.
The objective of this study was to observe the effects of brassinosteroid, gibberelin, and auxin application on the development and foliar anatomy of Tabebuia alba (Cham.) Sandw. seedlings. T. alba seedlings were grown in plastic bags with fertilized soil and treated with the following: 1- water (control); 2- brassinolide (BR1) 0.104 mM; 3- BR1 0.208 mM; 4- 3-indoleacetic acid (IAA) 0.2854 mM; 5- IAA 0.5708 mM; 6- GA3 (gibberellin A3) 0.1443 mM; 7- GA3 0.2887 mM; 8- GA3 0.072 mM + IAA 0.1427 mM; 9- GA3 0.1443 mM + IAA 0.2854 mM; 10- GA3 0.072 mM + BR1 0.052 mM; and 11- GA3 0.1443 mM + BR1 0.104 mM. Plant height and petiole length were measured before the treatments and 21 days after application of the growth regulators. These data allowed the calculation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tabebuia alba L.; Brassinosteroids; GA3; Auxin; Growth.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-31312000000300002

Application of Comet assay to assess the effects of white bean meal on DNA of human lymphocytes
Provedor de dados: 60
Autores: Pereira,Luciana Lopes Silva; Marcussi,Silvana; Sátiro,Lívia Cabral; Pereira,Chrystian Araujo; Andrade,Larissa Fonseca; Davide,Lisete Chamma; Santos,Custódio Donizete dos.
This study was conducted to evaluate the potential induction of genotoxic effects of white bean flour using the Comet assay. The test was conducted with human lymphocytes present in whole blood immediately after collection, by incubation with white bean flour in three concentrations (3.92, 9.52 and 18.18 mg/mL) at 37 ºC for 4 h followed by preparation of slides. Samples were considered positive (above 20% damage) when the damage observed to cellular DNA was higher than the negative control. No genotoxic potential was found at the doses tested. However, it would be premature to suggest absence of risk to human health of DNA damage since the exposure of cells to the extract was restricted to four hours rather than a whole cell cycle. Additionally, further...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genotoxicity; White bean flour/genotoxic effects; Comet assay/toxicological analysis of food; Food/toxicological analysis.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000100012

Application of data mining techniques to explore predictors of upper urinary tract damage in patients with neurogenic bladder
Provedor de dados: 56
Autores: Fang,H.; Lu,B.; Wang,X.; Zheng,L.; Sun,K.; Cai,W.
This study proposed a decision tree model to screen upper urinary tract damage (UUTD) for patients with neurogenic bladder (NGB). Thirty-four NGB patients with UUTD were recruited in the case group, while 78 without UUTD were included in the control group. A decision tree method, classification and regression tree (CART), was then applied to develop the model in which UUTD was used as a dependent variable and history of urinary tract infections, bladder management, conservative treatment, and urodynamic findings were used as independent variables. The urethra function factor was found to be the primary screening information of patients and treated as the root node of the tree; Pabd max (maximum abdominal pressure, &gt;14 cmH2O), Pves max (maximum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neurogenic bladder; Upper urinary tract damage; Decision tree model; Urodynamics; Urethra function.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001000603

Application of genetically modified mosquitoes in national vector control programmes: thoughts on integrated control
Provedor de dados: 26
Autores: Mnzava, A.; Curtis, C.F.; Manga, L.; Touré, Y.T.
Advances in transgenic technology have allowed the development of genetically transformed insects that have reduced ability to support the development of disease pathogens. The integration of this new method within national vector control programmes is indeed the biggest challenge, notwithstanding the current weak health systems in most disease-endemic countries (DECs) to efficiently apply vector control interventions. Moreover, where integration is considered, it is essential that reliable data are available on the multiple effects of the interventions. This should be done in parallel to the general strengthening of both human, technical, financial and physical resources at all levels of the national health system
Tipo: Conference proceedings
Ano: 2005
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1201

Application of geographic information systems to the study of the ecology of mosquitoes and mosquito-borne diseases
Provedor de dados: 26
Autores: Gimnig, J.E.; Hightower, A.W.; Hawley, W.A.
Geographic information systems (GIS) are powerful computer mapping and analysis systems for studying spatial patterns and processes; they are applicable to numerous disciplines, including the study of mosquito ecology. The distribution of mosquitoes is largely dependent upon the spatial distribution of their larval breeding sites, their flight range and the spatial distribution of their preferred hosts. These are all heterogeneous in space and time and GIS therefore has many potential applications to the study of mosquitoes and the diseases they transmit. GIS may be used to map and analyse the spatial distribution of mosquitoes and to assess the ecological factors that contribute to observed distributions. A detailed understanding of what drives...
Tipo: Conference proceedings
Ano: 2005
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/958

Application of herbicides in corn
Provedor de dados: 106
Autores: Somchart Kanjanajirawong; Maneesa Teerawatsakul; Prakob Jan-Aram; Boonguer Poosri.
1 table
Palavras-chave: Corn maize herbicides weeds weed control pre-emergence post-emergence atrazine metolachlor cyanazine alachlor 2; 4-D linuron ข้าวโพด สารกำจัดวัชพืช สารกำจัดวัชพืชแบบก่อนงอก สารกำจัดวัชพืชแบบหลังงอก อาทราซีน เมทโธลาคลอร์ ไซยานาซีน อะลาคลอร์ ทูโฟร์-ดี ลินูรอน.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3934

Application of herbicides in corn
Provedor de dados: 106
Autores: Somchart Kanjanajirawong; Maneesa Teerawatsakul.
Palavras-chave: Corn maize herbicides weed control pre-emergence post-emergence atrazine metolachlor cyanazine alachlor 2; 4-D linuron ข้าวโพด สารกำจัดวัชพืช สารกำจัดวัชพืชก่อนงอก สารกำจัดวัชพืชแบบหลังงอก อาทราซีน เมทโธลาคลอร์ ไซยานาซีน อะลาคลอร์ ทูโฟร์-ดี ลินูรอน.
Ano: 1977
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3937

Application of herbicides in corn
Provedor de dados: 106
Autores: Somchart Kanjanajirawong; Maneesa Teerawatsakul.
1 table
Palavras-chave: Corn; Maize; Herbicides; Weed control; Atrazine; Alachlor; ข้าวโพด; การควบคุมวัชพืช; อาทราซีน; อะลาคลอร์.
Ano: 1976
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3857

Application of hypergravity in Eucalyptus and Corymbia seeds
Provedor de dados: 65
Autores: Nunes,Andrei Caíque Pires; Santos,Glêison Augusto dos; Santos,Marlise Araújo dos; Russomano,Thais; Santos,Osmarino Pires dos; Valente,Brígida Maria dos Reis Teixeira; Resende,Marcos Deon Vilela de.
ABSTRACT: The aim of this study was to evaluate the growth responses of various Eucalyptus and Corymbia species subjected to different intensities of simulated hypergravity relative to the control. A centrifuge was used to simulate hypergravity. It was developed and built at the Centro de Microgravidade of the Pontifícia Universidade Católica do Rio Grande do Sul, Brazil. Seeds of five Eucalyptus and one Corymbia species (E. grandis, Eucalyptus globulus, Eucalyptus benthamii, Eucalyptus saligna, Eucalyptus dunnii, and C. maculata) were placed on moist germination paper in plastic containers and rotated at speeds simulating 5 Gz and 7 Gz for different lengths of time. Hypergravity technology significantly increased seedling production (diameter, height, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rowth increment; Forest breeding; Simulated-gravity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000200301

Application of Internal Control Systems in Organic Export  Companies: Two Case Studies from Uganda
Provedor de dados: 21
Autores: Reckling, Moritz; Preißel, Sara.
The organic agricultural sector of Uganda is considered the most developed in Africa with a total of 296,203 ha organic certified land and the most certified organic producers worldwide (206,800), 90% of whom are small scale farmers. They are certified organic under contract production by export and processing companies, using an Internal Control System (ICS) as a group certification scheme defined by IFOAM (2004). The ICS is a viable and well accepted tool to certify small scale producers in developing countries all over the world. In Uganda however, certification difficulties are stated among the main constraints for the organic sector development.  Therefore, a qualitative study was conducted from June to August 2008 that aimed at better understanding...
Tipo: Report chapter
Palavras-chave: Regulation Education; Extension and communication Values; Standards and certification Social aspects.
Ano: 2009
URL: http://orgprints.org/16286/1/Reckling%26Preissel_TT09_Abstract.pdf

Application of Internal Control Systems in Organic Export  Companies: Two Case Studies from Uganda
Provedor de dados: 21
Autores: Reckling, Moritz; Preißel, Sara.
Introduction  - Uganda’s organic sector has significance worldwide and in  Africa with respect to certified farmers and land  - Farmers are certified organic under contract production by  export companies using an internal control system (ICS)  - The ICS ensures quality along the supply chain (picture 1)  - However, certification difficulties are among the main  constraints for a further development of the organic sector
Tipo: Conference paper, poster, etc.
Palavras-chave: Regulation Values; Standards and certification Social aspects Africa.
Ano: 2009
URL: http://orgprints.org/16285/1/Reckling%26Preissel_Poster_TT09.pdf

Application of lime, phosphogypsum and fertilization rates affect soil fertility and common bean development in no-tillage system in a Cerrado Oxisol
Provedor de dados: 1
Autores: Carvalho, Maria da Conceição Santana; Nascente, Adriano Stephan.
There is a lack of information about the effects of interactions among lime, phosphogypsum (PG) and fertilization on soil fertility and their effects on common bean yields in the tropics. This study aimed to determine the effects of annual application of PG and limestone and rates of fertilization on the chemical attributes of soil, fertilization efficiency, yield components and the grain yield of the common bean. The study was performed for three growing seasons in an acidic Oxisol. The experimental design was randomized blocks in a 4x4 factorial scheme. The treatments consisted of lime, lime + PG, PG, and control (without corrective application) with four fertilization rates. In an acidic and low-fertility Cerrado soil, limestone or limestone + PG...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências agrárias; Solos e nutrição de plantas Phaseolus vulgaris; Soil acidity; Calcium carbonate; Liming; Phosphogypsum. fertilidade do solo; Nutrição de plantas; Fitotecnia.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39322

Application of lime, phosphogypsum and fertilization rates affect soil fertility and common bean development in no-tillage system in a Cerrado Oxisol
Provedor de dados: 1
Autores: Carvalho, Maria da Conceição Santana; Nascente, Adriano Stephan.
There is a lack of information about the effects of interactions among lime, phosphogypsum (PG) and fertilization on soil fertility and their effects on common bean yields in the tropics. This study aimed to determine the effects of annual application of PG and limestone and rates of fertilization on the chemical attributes of soil, fertilization efficiency, yield components and the grain yield of the common bean. The study was performed for three growing seasons in an acidic Oxisol. The experimental design was randomized blocks in a 4x4 factorial scheme. The treatments consisted of lime, lime + PG, PG, and control (without corrective application) with four fertilization rates. In an acidic and low-fertility Cerrado soil, limestone or limestone + PG...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Soil acidity; Calcium carbonate; Liming; Phosphogypsum.; Fertilidade do solo; Nutrição de plantas; Fitotecnia.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39322

Application of low concentrations of salicilyc acid increases the number of flowers in Petunia hibrida
Provedor de dados: 115
Autores: Martín-Mex,Rodolfo; Vergara-Yoisura,Silvia; Nexticapán-Garcés,Ángel; Larqué-Saavedra,Alfonso.
The effect of applications of low concentrations of salicylic acid (SA) on the number of flowers and the date of flower initiation in Petunia (Petunia híbrida) in reported in this paper. Concentrations of 1 μM to lpM of SA were spread on three occasions to the shoot of plantlets cultivated in greenhouse conditions. Analysis of the results showed that all the concentrations of SA tested increased the number of open flowers per plant. Concentrations as low as lpM or 0.lnM induced positive riesponses by 33 % and 37 %, as compared with that of the control. The highest concentration of 1 μM increased not only the number of flowers by 72 % but also induced early flowering by six days.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flowering; Low concentrations; Petunia; Salicylic acid.
Ano: 2010
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952010000700004

Application of Mindstorms sensors in monitoring the fruit ripening process
Provedor de dados: 111
Autores: Grujicic, Rade; Mijanovic Markus, Marina; Andjic, Branko.
In the present study, investigations were conducted to analyse the possibility of using the Lego Mindstorms light and color sensors in agriculture. The appropriate design was made which consisting of these sensors and control units that provided the information on measured values. The changes in color of tomato fruit (Lycopersicon esculentum Mill.) during maturation process were registered by using the appropriate color and light sensors with the analysis of the possibility of monitoring fruit ripening process and registration of any pathological changes of color. The values measured by sensors are presented in a graphical form, providing an analogy between the results given by Lego Mindstorms color sensor and Lego Mindstorms light sensor. The reliability...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agriculture; Color sensor; Fruit ripening; Light sensor; Mindstorms.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3751

Application of molecular information in sustainable animal breeding
Provedor de dados: 96
Autores: Koning,Dirk-Jan de.
Livestock genomics is aimed at dissecting the genetic control of variation in economically important trait, such as disease resistance and product yield/quality. Unraveling the genetic control of such complex traits remains very challenging but farm animals are now well placed to bridge the gap between human biology and traditional model species. Livestock species share with model species the benefits of controlled breeding, while their biology is often much closer to that of humans. Livestock genetics can exploit the abundant genetic variation between divergent breeds as well as segregating variation within breeds, thus getting the best of both worlds. Large numbers of QTL have been detected for a variety of traits but for only a handful has the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal Breeding; Functional Genomics; Marker Assisted Selection; Sustainable Agriculture.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982008001300015

Application of plant growth regulators at pre-harvest for fruit development of 'PÊRA' oranges
Provedor de dados: 52
Autores: Almeida,Isolina Maria Leite de; Rodrigues,João Domingos; Ono,Elizabeth Orika.
The aim of the present work was to evaluate the effects of auxins and gibberellins when applied at pre-harvest to the fruit development, and to the ripening and natural fall of the fruit, in 'Pêra' oranges. Trees of Citrus sinensis Osbeck cv. Pêra, 5 years old, were utilized. The treatments applied were: GA3 + 2,4-D 12.5mg L-1 of each; GA3 + 2,4-D 25mg L-1 ; GA3 + 2,4-D 37.5mg L-1; GA3 + NAA 12.5mg L-1; GA3 + NAA 25mg L-1; GA3 + NAA 37.5mg L-1; NAA + 2,4-D 12.5mg L-1; NAA + 2,4-D 25mg L-1; NAA + 2,4-D 37.5mg L-1; and water (control). The treatments were applied 3 times, at intervals of 45 days. The variables evaluated were: rate of natural fall (%), fruit length and diameter (mm), and fresh fruit weight (g). None of the treatments promoved alterations in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Auxins; Gibberellins; Fruit drop; Development.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000400003

Application of Plant Growth Regulators to Stipa krylovii in the Xilin Gol Grassland
Provedor de dados: 87
Autores: JUN,L.V.; XUE-FENG,Z.; ANJUM,S.A.; JI-XUAN,S.; YAN,Z.; YU-FENG,D.; ZOHAIB,A.; ALI,I.; YU,XU; XIU-JUAN,H.; SAN-GEN,W.
ABSTRACT: Plant growth regulators are an immense group of substances that have the ability to alter growth pattern of plants and can be used for improving plant growth and productivity. A study was conducted in the Xilin Gol grassland of Inner Mongolia, China, to ascertain the growth and biomass production of Stipa krylovii in response to exogenous application of different growth regulators at various concentrations viz. naphthalene acetic acid (NAA), 6-benzylaminopurine (6-BA), brassinosteroid (BR), sodium nitrophenolate (SNP) and forchlorfenuron, and gibberellic acid (GA3). Application of growth regulators significantly enhanced the growth and biomass production of S. krylovii. The height of vegetative shoot was enhanced mostly by the application of 100...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth; Pastures; Biomass production.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100251

APPLICATION OF PRE AND POST EMERGENCE HERBICIDE UNDER IMPROVED FIELD IRRIGATION SYSTEM PROVED A SUSTAINABLE WEED MANAGEMENT STRATEGY IN COTTON CROP
Provedor de dados: 87
Autores: HAKOOMAT,A.; AROOJ,M.; SARWAR,N.; AREEB,A.; SHAHZAD,A.N.; HUSSAIN,S.
ABSTRACT Successful weed control in cotton crop is an imperative as weeds not only reduce the cotton production but also deteriorate the lint quality and harbor insect pest. Thus a field study was carried out to evaluate the various weed control strategies under different irrigation systems. Pendimethlin (pre-emergence), S-metolachlor (pre-emergence), glyphosate (post emergence) were used alone or in combination as chemical weedicides along with mechanical weeding under drip and furrow irrigation systems. Results showed that all the weed control treatments with drip irrigation significantly decrease weed density compared with weed control treatments where watering was practiced through furrow irrigation method. However, combined application of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gossypium hirsutum; Seed cotton; Irrigation; Weed density; Ginning out turn and water use efficiency.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100250

Application of response surface methodology to enhancement of biomass production by Lactobacillus rhamnosus E/N
Provedor de dados: 58
Autores: Polak-Berecka,Magdalena; Waśko,Adam; Kordowska-Wiater,Monika; Targoński,Zdzisław; Kubik-Komar,Agnieszka.
Response surface methodology (RSM) was employed to study the effects of various medium components on biomass production by Lactobacillus rhamnosus E/N. This strain is commonly used in the pharmaceutical and food industries due to its beneficial effect on the human gut and general health. The best medium composition derived from RSM regression was (in g/l) glucose 15.44, sodium pyruvate 3.92, meat extract 8.0, potassium phosphate 1.88, sodium acetate 4.7, and ammonium citrate 1.88. With this medium composition biomass production was 23 g/l of dry cell weight after 18 h of cultivation in bioreactor conditions, whereas on MRS the yield of biomass was 21 g/l of dry cell weight. The cost of 1 g of biomass obtained on MRS broth was calculated at the level of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Response surface methodology; Lactobacillus rhamnosus; Medium selection; Biomass production.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400035

Application of semi-selective mediums in routine diagnostic testing of Pseudomonas savastanoi pv. phaseolicola on common bean seeds
Provedor de dados: 63
Autores: Popovic,Tatjana; Milovanovic,Predrag; Aleksic,Goran; Gavrilovic,Veljko; Starovic,Mira; Vasic,Mirjana; Balaž,Jelica.
Halo blight, caused by Pseudomonas savastanoi pv. phaseolicola (Psp), is considered to be an important bacterial disease on common bean (Phaseolus vulgaris L.) in Serbia. Use of pathogen-free seeds is one of the most effective control measures against this disease. The aim of this study was to evaluate a detection method for Psp on untreated common bean seeds (23 genotypes) from commercial crops grown within Serbia. Detection of this pathogen was made by plating onto the modified sucrose peptone (MSP) and Milk Tween (MT) semi-selective mediums from soaked whole common bean seed. Colonies growing on the MSP medium were light yellow, convex and shiny, whereas on the MT medium, they were creamy white, flat and circular. The pathogenicity of the obtained...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MSP; MT; ELISA; Nested-PCR; Halo blight; Pathogenicity.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000400005

Application of statistical process control for spotting compliance to good pharmaceutical practice
Provedor de dados: 60
Autores: Eissa,Mostafa Essam; Abid,Ahmedy Mahson.
ABSTRACT For the release of pharmaceutical products into the drug market; most of the pharmaceutical companies depend on acceptance criteria - that are set internally, regulatory and/or pharmacopeially. However, statistical process control monitoring is underestimated in most quality control in cases; although it is important not only for process stability and efficiency assessment but also for compliance with all appropriate pharmaceutical practices such as good manufacturing practice and good laboratory practice, known collectively as GXP. The current work aims to investigate two tablet inspection characteristics monitored during in-process control viz. tablet average weight and hardness. Both properties were assessed during the compression phase of the...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Statistical process control (SPC); In-process control; GXP; Film coated tablet; Fluoroquinolone; Capability analysis; Pharmaceutical practice.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000200301

APPLICATION OF THE ECONOMIC THRESHOLD FOR INTERSEASONAL PEST CONTROL
Provedor de dados: 31
Autores: Hall,   Darwin C.; Moffitt,   L. Joe.
We show how an interseasonal pest control problem can be simplified to enable an intraseasonal model to be empirically applied, extending the range of application of the intraseasonal model.  Three alternative economic thresholds are compared.  The optimal solution requires repeated computations by the farmer to compute the profit maximizing dose, with a corresponding threshold, for each pest infestation.  Two alternative decision rules require a single computation by the farmer for the threshold and dosage rate.  An empirical illustration shows that, relative to the optimal solution which is computationally burdensome to the farmer, little net revenue is lost by using one of the thresholds based upon a simpler decision rule.
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1985
URL: http://purl.umn.edu/32327

Application of the mammalian glyceraldehyde-3-phosphate dehydrogenase gene for sample quality control in multiplex PCR for diagnosis of leishmaniasis
Provedor de dados: 80
Autores: Gonçalves,SC; Régis-da-Silva,CG; Brito,MEFC; Brandão-Filho,SP; Paiva-Cavalcanti,M.
Leishmaniasis is a neglected disease endemic in five continents. It is a severe disease that may lead to death, and its early detection is important to avoid severe damage to affected individuals. Molecular methods to detect Leishmania are considered alternatives to overcome the limitations presented by conventional methods. The aim of this study was to develop multiplex PCR systems able to detect small amounts of target DNA of Leishmania infantum and Leishmania braziliensis, and the gene coding for glyceraldehyde-3-phosphate dehydrogenase (G3PD) in mammals, enabling quality evaluation of the sample simultaneously with detection of the specific target. The systems created for G3PD recognition were combined with detection systems for L. infantum and L....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leishmaniasis; Diagnosis; Glyceraldehyde-3-phosphate dehydrogenase; Quality control.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000200009

Application of the taguchi’s loss function in the breeding of nile tilapia fed with different levels of alcohol yeast
Provedor de dados: 52
Autores: Medri,Vandir; Pereira,Geni Varéa; Leonhardt,Júlio Hermann.
Studies were conducted to evaluate the effect of 10%, 20% and 30% ration substitutions for distillery yeast on the function Taguchi’s loss using two hundred and forty 45-day-old fingerlings of Nile tilapia (Oreochromis niloticus), sexually reverted with an initial average weight of 1.25 ± 0.14 g placed in amianthus box.. The average results obtained for the limnological parameters of the water quality control through chemical analysis were considered normal. Taguchi’s losses for the total production, for the dead and discarded fishes did not show correlation for the different levels of alcohol yeast inclusion, showing that the choice of the yeast level in the ration for these fishes depended on its availability and occasional cost. It was observed that the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quality; Ration; Taguchi; Tilapia; Yeast.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100011

APPLICATION OF TICK SAMPLING ON ACARICIDAL BATH FREQUENCY IN Rhipicephalus (Boophilus) microplus (ACARI: IXODIDAE)
Provedor de dados: 101
Autores: de la Vega,R; Díaz,G; Camejo,A; García,I.
In this paper, a tick sampling method developed by authors was employed with the purpose of saving acaricides and decreasing environmental pollution by the use of acaricidal dip control bathing bovines in relation to a critical number of estimated ticks. Twenty-six Jersey cows in production were sampled. The selected sampling regions were: rear leg, udder, perinea and tail. Samplings were done from 7 to 8 am, and female tick standard size pattern was 6 mm or longer. Every two weeks approximately, samplings and acaricidal baths were done (13 samplings in total). Only cows with 10 or more ticks received acaricidal baths. Results showed that the procedure allows saving 50% of acaricides.
Tipo: Journal article
Palavras-chave: Rhipicephalus (Boophilus) microplus; Tick; Acaricide; Sampling.
Ano: 2009
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2009000200005

Application of Urine as Fuel in a Soil-based Membrane-less Single Chamber Microbial Fuel Cell
Provedor de dados: 111
Autores: Simeon, Meshack Imologie; Otache., Matins Yusuf; Ewemojie, Temitayo Abayomi; RAJI, AbdulGaniy Olayinka.
Microbial fuel cell (MFC) technology is a promising bio-technology that utilizes the microorganism in organic wastes to generate electricity. Although human urine has been identified as a suitable substrate in MFCs, its possible utilization in a soil-based Membrane-less Single Chamber Microbial Fuel Cell (MSCMFC) for constant power generation has, hitherto, not been reported. In this study, a MFC was set up with mud as inoculums in a plastic cylindrical vessel using carbon felt electrodes. It was operated for 19 days (456 hours) without extra substrate. Then, the MFC was treated with human urine (as substrate) four times (Days 19, 24, 32 and 36) each time the MFC output stabilized across external loads. A control MFC (MFCcontrol) was made the same way and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Renewable Energy; Microbial Fuel Cell Technology Soil; Urine; Microorganism; Power; Fuel Cell.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4808

Application of Various Herbicides on Controlling Large and Narrow Leaf Weeds and Their Effects on Physiological and Agronomic Traits of Wheat
Provedor de dados: 87
Autores: Bari,A.; Baloch,M.S.; Shah,A.N.; Khakwani,A.A.; Hussain,I.; IQBAL,J.; Ali,A.; Bukhari,M. A.
ABSTRACT: In order to examine application of various herbicides for controlling weeds in wheat crop, a field trial was conducted at the Agronomic Research Area, Faculty of Agriculture, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa (KPK) during the year 2015-2016. The experiment was laid out in a randomized complete block design (RCBD) with split-plot arrangements having three replications. The main plot was comprised application time of herbicides while the use of herbicides was assigned to sub-plots. The data revealed that most of the weed parameters, physiological traits and agronomic attributes of crop plants were significantly affected by weed management practices including the use of herbicides at different time intervals over the weedy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Weeds; Herbicides; Practices; Control.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100209

Application of visible and near-infrared spectrophotometry for detecting salinity effects on wheat leaves (Triticumasativum L.)
Provedor de dados: 111
Autores: Mokhtari, Mohammad Hossein; Sodae, Hamid Reza; Hakimzadeh, Mohammad Ali; Tarighat, Fahimeh.
Soil and water salinity is the most limiting factor for plant growth and productivity. Due to a high rate of evaporation, agricultural lands become saline in arid regions after a while. This leads to a decline in plant production. The present study investigated the capability of visible and near infrared (VNIR) spectrophotometry as a non-destructive method in detecting salinity effect on wheat leaves. A completely randomized design was work out with four salinity levels and three replicates. Wheat seeds were planted in plastic pots and irrigated with four levels of saline water [0 (control), 4, 8 and 12 dSm-1] Leaf spectrophotometry at VNIR (190-1100 nm) wavelength was performed on wheat leaves at the nodule-formation growth stage. The results indicated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agriculture; Soil Science; Crop Science Salinity  Wheat  Spectroscopy  Visible and Near-infrared.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2814

Application of visible and near-infrared spectrophotometry for detecting salinity effects on wheat leaves (Triticumasativum L.)
Provedor de dados: 111
Autores: Mohammad Hossein Mokhtari; 1Assistant professor, Desert management Department, Yazd University, Yazd, Iran; Hamid Reza Sodae; Assistant professor, Desert management Department, Yazd University, Yazd, Iran; Mohammad Ali Hakimzadeh; Assistant professor, Desert management Department, Yazd University, Yazd, Iran; Fahimeh Tarighat; MSc student at Yazd uiversity.
Soil and water salinity is the most limiting factor for plant growth and productivity. Due to a high rate of evaporation, agricultural lands become saline in arid regions after a while. This leads to a decline in plant production. The present study investigated the capability of visible and near infrared (VNIR) spectrophotometry as a non-destructive method in detecting salinity effect on wheat leaves. A completely randomized design was work out with four salinity levels and three replicates. Wheat seeds were planted in plastic pots and irrigated with four levels of saline water [0 (control), 4, 8 and 12 dSm-1] Leaf spectrophotometry at VNIR (190-1100 nm) wavelength was performed on wheat leaves at the nodule-formation growth stage. The results indicated...
Palavras-chave: Agriculture; Soil Science; Crop Science Salinity  Wheat  Spectroscopy  Visible and Near-infrared.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2814

Application of wastewater from the cassava processing to drip irrigation system
Provedor de dados: 22
Autores: Gris, D. J.; Hermes, E.; Vilas Boas, M. A.
The wastewater discarded from the cassava processing causes a serious environmental problem when dumped into water bodies. On the other hand, this residue can be used as a source of nutrients for crops. However, it is necessary to control the quality of this effluent because of the negative effects that it may cause to the irrigation system. This study aimed to evaluate a drip irrigation system with the application of cassava wastewater by determining the coefficients of variation of emitter discharge (CVq), distribution uniformity (DUC) and Christiansen’s uniformity (CUC). The experiment was conducted at C. Vale cassava processing factory in the city of Terra Roxa (Paraná, Brazil). Four systems of 66 m² were installed, with 7 lateral lines of 11 m, spaced...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carga hidráulica; Coeficiente de uniformidade; Vazão.
Ano: 2013
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/7857

Application of wireless technologies to forward predict crop yields in the poultry production chain
Provedor de dados: 111
Autores: Jackman, Patrick; Ward, Shane; Brennan, Liam; Corkery, Gerard; McCarthy, Ultan.
Average bird weight is the primary measure of crop yield and is the basis for calculating payment for the grower by the wholesaler. Furthermore the profit per bird is very small. Thus very tight control of growing process is essential to ensure average bird weight is maximised. The important factors (air temperature, air humidity, Carbon Dioxide concentration and Ammonia concentration) that affect the intake of feed and water must be kept at their optimum during the progress of the growing cycle. These factors can be influenced by activating burners and opening the vents on walls of the growing house. It then follows that the burning and venting strategy will be influential on the average bird weight of the crop.  Currently the burning and venting strategy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental control; Productivity; Average bird weight; Wireless agricultural sensors; Cloud computing.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3043

Application rate trials with a nuclear polyhedrosis virus to control Spodoptera frugiperda (Smith) on maize
Provedor de dados: 44
Autores: Cruz,Ivan; Figueiredo,Maria L. C.; Valicente,Fernando H.; Oliveira,António C.
Different concentrations of nuclear polyhedrosis virus were applied as aqueous suspensions using a tractor mounted or a backpack-manual sprayer to control Spodoptera frugiperda (Smith) larvae on maize (Zea mays L.). Larval mortality varied with the application equipment. For the tractor-mounted sprayer application of at least 2.5 x 10(12) P.I.B./ha was necessary to attain a control comparable to that obtained with the backpack-manual sprayer application (70.2%). For this application method it can be used the dose of 2.5 x 10(11) PI.B./ ha, butNPV persistence was very short. A greaterNPV persistence was obtained with doses over 1.25 x 10(12) P.I.B./ha (93.4% mortality). The occurrence of parasitoids in the experimental area increased larval mortality rate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Fall armyworm; Baculovirus; Biological control.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591997000100019

Application technology for the entomopathogenic nematodes Heterorhabditis indica and Steinernema sp. (Rhabditida: Heterorhabditidae and Steinernematidae) to control Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) in corn
Provedor de dados: 82
Autores: Garcia,Luiz C.; Raetano,Carlos G.; Leite,Luis G.
The effects of different application technologies were evaluated on the concentration, viability, and efficiency of infective juveniles of the nematodes Heterorhabditis indica Poinar, Karunakar &amp;amp; David and Steinernema sp. (IBCB-n6) to control Spodoptera frugiperda Smith on corn plants. Two hundred and eighty infective juveniles of Steinernema sp. were required to kill 100% third-instar fall armyworms in petri dishes, as compared to 400 infective juveniles of the H. indica nematode to obtain 75% fall armyworm control. It is possible to spray entomopathogenic nematodes without significant loss in their concentration and viability, with equipment that produces electrical charges to the spraying mix, and with those using hydraulic and rotary nozzle...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Irrigation system; Fall armyworm; Entomopathogenic nematoda.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000300010

Application Volumes and Sizes of Droplets for the Application of Diquat Herbicide in the Control of Eichhornia crassipes
Provedor de dados: 87
Autores: ALMEIDA,D.P.; AGOSTINI,A.R.; YAMAUCHI,A.K.; DECARO JR.,S.T.; FERREIRA,M.C.
The objective of this study was to evaluate the efficiency of application and the efficacy of control of water hyacinth (Eichhornia crassipes) with the use of the diquat herbicide done with two application volumes associated to three droplets classes. Three experiments were conducted; in the first, the application efficiency was evaluated; in the second, the control efficiency and; in the third, the droplet spectrum. They were conducted in a completely randomized design with five, four and six replicates, respectively. The treatments were arranged in a 2 x 3 factorial design, with two application volumes (100 and 200 L ha-1) and three droplets classes (fine, extremely coarse and ultra-coarse) to the first and second experiment and the third comprised two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spray volume; Volume median diameter; Chemical control of aquatic plants.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000100171

Applications dans la filière des produits de la mer
Provedor de dados: 5
Autores: Le Fur, Bruno; Wacogne, Delphine; Lorre, Sylvie; Pilet, Marie France; Leroi, Francoise.
Bioconservation or biopreservation is an alternative method to the use of chemical preservatives. It consists in using microorganisms, called protective cultures, or their natural metabolites. Like any other method of preservation, it allows the control of the growth of pathogenic or spoilage flora, while preserving the organoleptic and nutritional qualities of the product. Fermentation is one of the oldest applications of bioconservation. Today the potential of protective cultures is also promising for various fresh or processed foods. In this work, an overview of current knowledge on biopreservation is proposed made from international scientific publications. The book focuses mainly on the use of microorganisms to improve the conservation of different...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00130/24157/22163.pdf

Applications de la thermographie infrarouge au controle non destructif des materiaux composites utilises en construction navale
Provedor de dados: 5
Autores: Lesbre, F; Potet, P; Artiga, F.
Composite materials used in naval construction use mainly glass fibres and fabrics and epoxy resins for monolithic structures and syntactic foams or balsa wood for the core of sandwich structures. Traditional non destructive testing (NDT) methods such as ultrasonics or radiography do not always ensure a complete check of the structure, principally due to the strong heterogeneity of these materials. In order to improve this situation the DCN has developed a test method based on the use of active infrared thermography. The technique consists of illuminating the structure with a powerful lamp and observing the cooling of the surface with an infrared camera. Defects present act as obstacles to heat transmission in the material and cause thermal anomalies on...
Tipo: Text
Palavras-chave: Epoxy resins; Fibre glass; Ship technology; Composite materials; Sous marin; NDT; Infrarouge; Thermographie.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/acte-1050.pdf

Applications de soufre en automne: une nouvelle manière de lutter contre l`ériophyide à galles du poirier.
Provedor de dados: 21
Autores: Daniel, Claudia; Wyss, Eric; Linder, Christian.
Autumn applications of sulphur – a new approach to control the pear leaf blister mite Eriophyes pyri.  Abstract: The pear leaf blister mite can cause severe damage to pear leaves and young fruits in some regions. Due to hidden living inside leaf blisters, the mites are largely protected against the impact of plant protecting agents. Until now, treatments with mineral oil or rape oil in early spring, during the time when the mites leave their hibernation sites under the bud scales to invade the young leaves and blossoms, are the only possibility to control these mites in Swiss organic fruit growing. The aim of this study was to examine the effects of sulphur, mineral oil and Surround®WP applied after harvest during the time, when the mites leave their...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection.
Ano: 2004
URL: http://orgprints.org/6139/1/daniel%2D2004_04SchwefelPockenmilbeRSVAH.pdf

Applications of 5-aminolevulinic acid on the physiological and biochemical characteristics of strawberry fruit during postharvest cold storage
Provedor de dados: 65
Autores: Li,Yi; Li,Zhiqiang; Wang,Liangju.
ABSTRACT: The compound 5-aminolevulinic acid (ALA) is a key precursor in the biosynthesis of porphyrins, such as chlorophyll, heme and phytochromobilin, and has multiple physiological effects on plants. Varying concentrations of ALA (50mg L-1, 100mg L-1, and 150mg L-1) and water (control) were applied to white stage 'Sweet Charlie' strawberry fruit. All ALA treatments delayed senescence and improved the qualities of strawberries fruit during storage. Among the treatments, 150mg L-1 ALA was the most effective dosage concentration. Exogenously applied ALA significantly reduced the decay index, respiration rate, O2 - production rate (O2 -), H2O2 and malondialdehyde (MDA) content, increased superoxide dismutase (SOD), ascorbate peroxidase activities (APX),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant enzyme; Fragaria × ananassa; Storage; Preharvest; Quality.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001202103

Applications of Dynamic Programming to Agriculture, Forestry and Fisheries: Review and Prognosis
Provedor de dados: 31
Autores: Kennedy,   John O.S.
Farmers are faced with many decision problems in crop and livestock production which are multistage and stochastic. There have been many applications of dynamic programming (DP) to such decision problems, many primarily for illustrative purposes. It is argued that the advent of farmer access to computers will lead to on-farm use of DP. Applications of DP to forestry, fisheries and agricultural policy are also reviewed. The scope and limitations of DP are discussed, and the close relationship between DP and control theory is examined.
Tipo: Journal Article
Palavras-chave: Farm Management; Research and Development/Tech Change/Emerging Technologies.
Ano: 1981
URL: http://purl.umn.edu/12234

Applications of Plackett–Burman and Central Composite Design for the Optimization of Novel Brevundimonas diminuta KT277492 Chitinase Production, Investigation of its Antifungal Activity
Provedor de dados: 52
Autores: Warda,E. Ashour; Abeer,A. Abd El Aty; Eman,R. Hamed; Mahmoud,A. Swelim; Ahmed,I. El-Diwany.
ABSTRACT Biological control strategy which can damage chitin, a vital component of pathogenic fungi and arthropods promises a safe solution for many fungal problems. And it’s more favorable than chemicals which increase health risks and environmental problems. Thus, the chitinase producers appear potential candidates of biological control of pathogenic fungi. Brevundimonus diminuta KT277492 is a new isolate that has been isolated recently from Egyptian soil. Significant factors that affecting the chitinase enzyme production were studied and optimized using Plackett-Burman and Response Surface Methodology (RSM). As a result, maximum production of chitinase enzyme was 832.87 IUL-1, this result presented about 8.767-fold increase in the enzyme production. In...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chitinase; Brevundimonas diminuta KT277492; Optimization; Plackett–Burman; Central composite design; Antifungal.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100429

Applications of protective cultures, bacteriocins and bacteriophages in fresh seafood and seafood products
Provedor de dados: 5
Autores: Pilet, Marie-france; Leroi, Francoise.
Microbial seafood-borne disease represents 10 to 20% of the total food-borne outbreaks. Most of them are from bacterial origin and involve seafood products that have been contaminated by pathogenic Vibrio, Listeria monocytogenes and histaminogen bacteria. On the other hand, seafood products are very sensitive to the development of spoiling bacteria producing off-odours. Pathogenic and spoiling microflora are not always reduced or limited by the processing steps that are currently used in these foodstuffs, and the interest for alternative techniques such as bioprotection to improve quality and safety of seafood has increased in the last years. Among the microbial flora of lightly preserved seafood products, lactic acid bacteria usually become dominant...
Tipo: Text
Palavras-chave: Biopreservation of seafood; Seafood safety and spoilage; Lactic acid bacteria; Sensory quality; Listeria monocytogenes.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00030/14138/11384.pdf

Applied aspects of pineapple flowering
Provedor de dados: 53
Autores: Cunha,Getúlio Augusto Pinto da.
Flowering is an amazing, integrated and complex process of multifatorial control, which due to its great importance for agriculture has been extensively studied worldwide. Pineapple is one of the main crops on which many research works about this subject have been carried out, and it was the first one to have artificially induced flowering. However, even with all those studies, pineapple flowering is not yet characterized in many aspects. The main point for the comprehension of the physiologic aspects of flowering initiation is the identification of the factors involved in the differentiation of the apical meristem into floral primordium, as well as how these factors exert their action. This work aimed to describe the flowering process of pineapple plants,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ananas comosus var. comosus; Inflorescence; Flowering control; Plant growth regulators.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000400001

Applikationstechniken zur Regulierung von Schädlingen im Gemüsebau
Provedor de dados: 21
State of the Art:  Many organic pesticides have reduced effectiveness due to UV degradation. New application techniques (e.g. under-leaf application) could help to solve this problem in organic vegetable production.  Definition of the problem:  All microbial biocontrol agents and pesticides of vegetal origin are UV degraded. New application technology could augment effectiveness of these products.  Project aims:  Find new application technologies for a more adapted application of organic pesticides and microbial biocontrol agents in organic vegetable production.  Methodology:  On-farm test of different new application techniques and with different pesticide agents.
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023

Applying a bioeconomic optimal control model to charcoal production: the case of slash-and-burn agriculture in Mexico
Provedor de dados: 118
Autores: Arrocha,Fernando; Villena,Mauricio G.
This paper analyzes the relationship between rural poverty and forest land management for the case of charcoal production under slash-and-burn agriculture. An optimal control model is used to determine how a representative household makes decisions about the allocation of labor and about the forest areas to exploit. In turn, these decisions affect the renewable resource base available to the community. The proposed optimal control model for charcoal production is based on the Pascual and Barbier (2007) model of slash-and-burn agriculture. This theoretical model is calibrated with data from the community of Chunkanán, Campeche, Mexico. The simulation and comparison of the traditional slash-and-burn approach to forest management with the Forest Management...
Tipo: Journal article
Palavras-chave: Charcoal production; Forest management; Rural poverty; Rural households.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300009

Applying ant hygiene: can ants protect crops against diseases?
Provedor de dados: 21
Autores: Offenberg, Joachim; Damgaard, Christian.
1. Ants provide ecosystem services to agriculture by controlling arthropod pests. Plant diseases, however, can be more detrimental to plant production than herbivory. Here, we investigate a new type of potential ant service – namely that ant hygiene may extend beyond the ants themselves to also cover their host plants, potentially resulting in protection against plant diseases.   2. We review the literature for support to the idea that ant hygiene, including ant-derived antibiotics, can protect plants against pathogens, and we provide empirical pilot data from a Danish apple plantation further supporting this idea.  3. In a literature search, we found nine studies showing ants reducing pathogen incidence on host plants. These studies cover nine ant species...
Tipo: Journal paper
Palavras-chave: Biodiversity and ecosystem services Fruit and berries Crop health; Quality; Protection.
Ano: 2018
URL: http://orgprints.org/33267/1/Fungal%20disease%20paper.docx

Applying Polyacrylamide (PAM) to Reduce Erosion and Increase Infiltration Under Furrow Irrigation
Provedor de dados: 18
Autores: Lentz, R.D.; Stieber, T.D.; Sojka, R.E.
Tipo: Conference or Workshop Item
Palavras-chave: Polyacrylamide; Polyacrylamide; Erosion control; Infiltration management; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1995
URL: http://eprints.nwisrl.ars.usda.gov/1071/1/871.pdf

Applying polymers to irrigation water: evaluating strategies for furrow erosion control
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.
Tipo: Article
Palavras-chave: Erosion; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 2000
URL: http://eprints.nwisrl.ars.usda.gov/116/1/1028.pdf

Applying search theory to determine the feasibility of eradicating an invasive population in natural environments
Provedor de dados: 31
Autores: Cacho,   Oscar J.; Hester,   Susan M.; Spring,   Daniel.
The detectability of invasive organisms influences the feasibility of eradicating an infestation. Search theory offers a framework for defining and measuring detectability, taking account of searcher ability, biological factors and the search environment. In this paper, search theory concepts are incorporated into a population model, and the costs of search and control are calculated as functions of the amount of search effort (the decision variable). Simulations are performed on a set of weed scenarios in a natural environment, involving different combinations of plant longevity, seed longevity and plant fecundity. Results provide preliminary estimates of the cost and duration of eradication programs to assist in prioritising weeds for control. The...
Tipo: Article
Palavras-chave: Bioeconomics; Invasive species; Operations research; Population dynamics; Weed control; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/118522

Appraisal of acute oral toxicity of glucuronoxylan hydrogel from Mimosa pudica seeds
Provedor de dados: 60
Autores: Muhammad,Gulzar; Hussain*,Muhammad Ajaz; Ashraf,Muhammad Umer; Naeem-ul-Hassan,Muhammad; Bukhari,Syed Nasir Abbas.
Glucuronoxylan hydrogel (GXH) isolated from M. pudica seeds was assessed for acute toxicology in albino mice that were alienated into four groups. Three groups, i.e., II, III and IV received GXH at a dose of 1, 2 and 5 g/kg, respectively while group I was retained untreated and provided routine diet. After administering GXH, mice were examined for vomiting, diarrhea, allergy and tremors for 8 h. All animals were carefully observed for food and water consumption at 1, 2, 3, 7 and 14 day after administering GXH. At the end of studies, blood samples were drawn for investigation of hematological and biochemical parameters. All animals were sacrificed, relative body weight of vital organs was calculated and their histopathology was studied. It was concluded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glucuronoxylan; Acute toxicity; Histopathology; Toxicology; Mimosa pudica.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000300619

Appraisal of purple coneflower (Echinacea purpurea) extract on production performance, internal organs, and gut microflora of japanese quail
Provedor de dados: 2
Autores: Seifi, Saeed; Khoshbakht, Rahem; Hajati, Hosna; Gilani, Ali.
An experiment was carried out to evaluate the effects of Echinacea purpurea (EP) extract at 5 levels (0, 0.25, 0.5, 1 or 2 mL L-1 of drinking water) on performance, internal organs and gut microflora of Japanese quail (Coturnix coturnix Japonica). The results showed that EP extract decreased feed intake and body weight gain of quails. The feed conversion ratio of quails fed with EP extract at the level of 0.5 ml L-1 drinking water was significantly decreased compared to the control group. Adding EP extract at the levels of 0.25, 0.5 or 1 mL L-1 drinking water decreased carcass yield of the birds (p &lt; 0.05). The relative weight of internal organs of the birds fed different levels of EP extract was not significantly different. Birds consumed EP extract at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Echinacea purpurea; Japanese quail; Performance; Gut microflora.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/37230

Approach to the assessment of sustainability in organic livestock farms in a Colombian Andean region
Provedor de dados: 21
Autores: Cruz Uribe, Fabian; Prieto Cristancho, Carolina.
This study aimed to compare conventional livestock production systems in relation to other forms that implement ecological production, evaluating environmental variables (in water: nitrite, nitrate, phosphate, pH and availability of oxygen using photometrics methods and Winkler modified method. In soils: counts of bacteria and fungi using MPN method, and physicochemical properties. In meadows: Prairie composition, quantity and density of arthropods), productive variables (in forages: biomass estimation using the methodology by Campbell and Arnold, nutritional quality using bromatology methods, in animals: milk production, weight gain, and carrying capacity), and economic variables (Fertilization cost and control ecto-endo parasites cost) in 6 farms...
Tipo: Conference paper, poster, etc.
Palavras-chave: Production systems; Farming Systems; Environmental aspects.
Ano: 2014
URL: http://orgprints.org/23748/1/23748_CRUZ_PRIETO_MM.pdf

Approaches and frameworks for management and research in small-scale fisheries in the developing world
Provedor de dados: 31
Autores: Andrew,   Neil; Evans,   Louisa.
Commonly adopted approaches to managing small-scale fisheries (SSFs) in developing countries do not ensure sustainability. Progress is impeded by a gap between innovative SSF research and slower-moving SSF management. The paper aims to bridge the gap by showing that the three primary bases of SSF management--ecosystem, stakeholders’ rights and resilience--are mutually consistent and complementary. It nominates the ecosystem approach as an appropriate starting point because it is established in national and international law and policy. Within this approach, the emerging resilience perspective and associated concepts of adaptive management and institutional learning can move management beyond traditional control and resource-use optimization, which largely...
Tipo: Working or Discussion Paper
Palavras-chave: Developing countries; Fishery management; Artisanal fishing; Research and Development/Tech Change/Emerging Technologies.
Ano: 2009
URL: http://purl.umn.edu/53029

Approaches for zoning of coastal areas with reference to Mediterranean aquaculture
Provedor de dados: 5
Autores: PAP/RAC.
Marine aquaculture, as a relatively new sector capable of economic growth and benefits, is now moving beyond its traditional stages to the point where it needs to have a recognisable and effective position - both in development and regulatory terms. In that context selection of the site is of vital importance since the quality and characteristics of the site are essential for both farming performance and reducing the negative impact on the environment. Site selection procedures are closely related to the coastal zone planning and management policy, especially in a climate of competition for coastal space and resources use. The document suggests that coastal zoning relevant to aquaculture must be included in the national policy and with the goals defined at...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00391/50189/50813.pdf

APPROACHES TO MANAGEMENT AND FARM BUSINESS SUCCESS
Provedor de dados: 31
Autores: McBride,   William D.; Johnson,   James D.
Exploratory factor analysis was used to analyze responses to management questions asked a sample of U.S. cash grain farmers.  Results indicate that 3 factors described farm management approaches, price negotiation, long-term cost control, and input adjustment.  Price negotiation was positively associated with farm business success, but the input adjustment approach had a negative impact on farm performance.
Tipo: Conference Paper or Presentation
Palavras-chave: Farm Management.
Ano: 2004
URL: http://purl.umn.edu/20131

Approaches to pest management in organic agriculture: a case study in European apple orchards
Provedor de dados: 21
Autores: Wyss, Eric; Luka, Henryk; Pfiffner, Lukas; Schlatter, Christian; Gabriela, Uehlinger; Daniel, Claudia.
Although the European organic agriculture movement was founded by Rudolf Steiner and Hans Mueller in the years between 1924 and 1940, it was not until the 1980s that pest management researchers began to develop strategies to control pests in organic systems. Today, insect pest management in organic agriculture involves the adoption of scientificallybased and ecologically sound strategies as specified by international and national organic production standards. These include a ban on synthetic insecticides and, more recently, on genetically modified organisms (GMOs). The first phase of an insect pest management program for organic systems is the adoption of cultural practices including diverse crop rotation, enhancement of soil quality by incorporation of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2005
URL: http://orgprints.org/8717/1/Wyss-2005-OrganicResearchAustralien.pdf

Approches cellulaires et moléculaires de la gestion des réserves chez l’huître, Crassostrea gigas (Thunberg, 1793). Suivi saisonnier du métabolisme énergétique et effet du niveau trophique sur la mise en réserve
Provedor de dados: 5
Autores: Hanquet, Anne-caroline.
In the Pacific oyster, Crassostrea gigas, the energy necessary for general metabolism and gametogenesis is mainly provided by the glycogen stored in the vesicular cells. The first level of glycogen metabolism control is the entrance of glucose into cells. The monitoring of the uptake capacity of [U-14C] D-glucose revealed the existence of a saturable component with kinetic constants: Km = 0.71 mM ; Vmax = 0.22 nmol/h/106cells. The use of inhibitors has revealed the presence of carriers belonged to GLuT and SGLT types. A follow-up showed a seasonal variation of the uptake capacity and incorporation of glucose into glycogen, and a high expression of SGLT during mobilization of glycogen and gametes maturation. A bioassay in a controlled rearing system has...
Tipo: Text
Palavras-chave: Crassostrea gigas; Glucides métabolisme; Glucose; Reproduction; Cryoconservation; Crassostrea gigas; Carbohydrate metabolism; Glucose; Reproduction; Cryoconservation.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00013/12399/9185.pdf

Approximating optimal numerical solutions to bio-economic systems: How useful is simulation-optimization?
Provedor de dados: 31
Autores: Börner,   Jan; Higgins,   Steven Ian; Scheiter,   Simon; Kantelhardt,   Jochen.
For applications in agricultural economics, complex ecological systems are often oversimplified to the extent that ecologists rarely consider model results valid. Recursive optimization of complex systems represents an alternative, but requires strong assumptions regarding time preference and uncertainty. In this paper we explore the implications of merely approximating “true” optima of complex dynamic optimization problems using a technique called simulation-optimization. We develop a standard discrete renewable resource use problem and solve it numerically using both simulation-optimization and non-linear mathematical programming. We subsequently introduce non-linearity and uncertainty and graphically compare the performance of simulation-optimization...
Tipo: Conference Paper or Presentation
Palavras-chave: Optimal control; Simulation; Ecological economic systems; Interdisciplinary modeling; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/51407

Aptamers as a promising approach for the control of parasitic diseases
Provedor de dados: 55
Autores: Ospina-Villa,Juan David; Zamorano-Carrillo,Absalom; Castañón-Sánchez,Carlos A.; Ramírez-Moreno,Esther; Marchat,Laurence A.
ABSTRACT Aptamers are short single-stranded RNA or DNA oligonucleotides that are capable of binding various biological targets with high affinity and specificity. Their identification initially relies on a molecular process named SELEX (Systematic Evolution of Ligands by EXponential enrichment) that has been later modified in order to improve aptamer sensitivity, minimize duration and cost of the assay, as well as increase target types. Several biochemical modifications can help to enhance aptamer stability without affecting significantly target interaction. As a result, aptamers have generated a large interest as promising tools to compete with monoclonal antibodies for detection and inhibition of specific markers of human diseases. One aptamer-based drug...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aptamer; Parasite control; Protozoan parasite; SELEX strategy.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000600610

AQS-BIO : Aliment-Qualité-Sécurité partie Bio
Provedor de dados: 21
This part of the program (1 projet) concerns the control of the wheat production and milling techniques for improving nutritionnal value of flour (comparison between organic and conventional wheat). The other part (1 project)is about future trends for the organic market and consumer training.
Tipo: Research Programme description
Palavras-chave: Food systems.
Ano: 2023

Aquaculture en système clos : estimation des coûts de production pour l'élevage du bar et du turbot
Provedor de dados: 5
Autores: Lavenant, M; Paquotte, Philippe.
Two major constraints to aquaculture have raised in most countries : the little availability of convenient sites because of the competition for the use of the coastline and the progressive implementation of regulations to reduce the impact of the farms on the environment. The technique of recirculation, widely used for hatcheries, has been developed to answer these constraints and to get free of the natural variations in order to regulate the résults. The ongrowing experimental facilities have proved good enough results to make it possible to conceive industrial projects for sea-bass and turbot. In first approach, the production costs of these systems are similar to traditional techniques but expected productivity gains due to an increase of zootechnical...
Tipo: Text
Palavras-chave: Economical aspects; Production costs; Sea bass; Turbot; Marine aquaculture; Recirculation; Closed system; SEM; Aspects économiques; Coût de production; Bar; Turbot; Aquaculture marine; Système clos; Circuit fermé.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/1995/acte-4032.pdf

Aquaculture, protection de l'environnement et signes de qualite
Provedor de dados: 5
Autores: Lorvellec, L.
This paper deals with the interaction between freshwater fish farming and the environmental protection including quality assessment in regard to French and European legislation.
Tipo: Text
Palavras-chave: Europe; France; Legislation; Quality control; Environmental protection; Aquaculture.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/acte-1324.pdf

AQUAREF intercomparison passive sampling exercise: monitoring of pesticides in surface water.
Provedor de dados: 5
Autores: Berho, Catherine; Mazzella, Nicolas; Munaron, Dominique; Lepot, Benedicte; Budzinski, Helene; Gonzalez, Catherine; Gravell, Antony; Gunold, Roman; Peinerud, Elsa; Smedes, Foppe; Vrana, Branislav; Miege, Cécile.
The Water Framework Directive (WFD) is probably the most significant legislation in the water field that has been introduced for many years. Several publications pointed out that passive samplers (PSs) can be valuable tools as complementary method in monitoring water quality in the context of the WFD However, there is still a lack of quality assurance and control (QA/QC) procedures that demonstrate the reliability and the comparability of results obtained by passive sampling. Up to date, very few in situ intercomparison exercises on PSs have been performed until now. To our knowledge only three pan-European or international intercomparison studies have been organized in situ since 2007 (ICES Passive sampling survey and intercalibration, AQUAREF, IPSIC and...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00167/27873/26118.pdf

Aqueous extract of tiririca, bio-stimulant and micronutrient in beet productivity and quality parameters
Provedor de dados: 22
Autores: Alves Neto, Alfredo José; Ritter, Giovana; Echer, Márcia de Moraes; Belmonte, Cristiani; Pires, Ely; Lorenzetti, Eloisa.
The use of stimulants in the beet crop can serve as a complement in the production and quality of the final product. In order to compare and evaluate the effects of physiological activators and aqueous extracts of tiririca on the parameters of beet quality and productivity, an experiment was conducted at the field in the municipality of Formosa do Oeste (Paraná, Brazil), in a typical dystroferric RED LATOSOL. The experimental design was randomized blocks, with four treatments (T1 - control, T2 - Stimulate® 0.004%, T3 - tiririca (Cyperus rotundus L.) 10%, T4 - Starter® 0.004%), with seven replicates. The seedlings were kept in the soil for 24 h in each treatment and then taken to the field and planted in beds. Leaf height (cm), number of leaves, stem length...
Tipo: Info:eu-repo/semantics/article
Ano: 2019
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/20788

Aqueous extracts and oil of neem combined with neonicotinoid insecticides against Bemisia tabaci biotype B in melon
Provedor de dados: 65
Autores: Trindade,Maria Santana de Araújo; Sousa,Adalberto Hipólito de; Maracajá,Patrício Borges; Sales Júnior,Rui; Andrade,Wilson Galdino de.
This research was aimed at evaluating nymph population density of whitefly (Bemisia tabaci biotype B) in melon plants after treatment with neem-dry-leaf aqueous extracts and neem-oil ( A. Juss.) applied alternately with neonicotinoid insecticides under field conditions. The experimental design was a randomized block, with 6 treatments and 4 replications. The treatments were control (only water); neem-dry-leaf extract at 5% (neem-dry-leaf powder 50g L-1 of water); neem oil (5.0mL L-1 water); chemicals insecticides imidacloprid (30g 25L-1 of water) and acetamiprid (5g 20L-1 of water); neem-dry-leaf extract at 5% weekly alternated with imidacloprid (30g 25L-1 of water) and acetamiprid (5g 20L-1 of water); neem oil (5.0mL L-1 of water) weekly alternated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Whitefly; Insecticidal plant.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000600046

Aqueous wheat extract (Triticuma estivum) prevents carboplatin-induced myelosuppression and oxidative stress in Wistar rats
Provedor de dados: 65
Autores: Forlani,Gustavo Soares; Félix,Samuel Rodrigues; Teixeira,Luciele Varaschini; Michelon,Laura; Bastos,Rodrigo Franco; Ribeiro,Carmen Lúcia Garcez; Freitag,Rogério Antônio; Félix,Anelize de Oliveira Campello; Nobre,Márcia de Oliveira.
ABSTRACT:  The present study aimed to evaluate the use of aqueous wheat extracts as an adjunct to antineoplastic therapy with carboplatin. In this study, 32 rats were used which were randomly distributed into 4 groups: G1 - negative control; G2 - control treated with physiological solution; G3 - animals treated with aqueous extract of wheat in the concentration of 100mg/kg; G4 - animals treated with aqueous wheat extract at the concentration of 400mg/kg; 300mg/m² of carboplatin was administered intraperitoneally at day 0 in animals from groups G2, G3, and G4, whereas 1ml of physiological solution was administered by the same route in animals from group G1. Animals were treated daily for 21 days by orogastric gavage according to their respective...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemotherapy; Phytochemical; Paraoxanase1; Myelogram.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001000600

Arabica coffee response to rates of coated and conventional urea in sandy soil
Provedor de dados: 86
Autores: Abranches,Jorge Luiz; Soratto,Rogério Peres; Perdoná,Marcos José; Parecido,Renan José.
Abstract: The objective of this work was to evaluate the growth, relative chlorophyll index and nitrogen concentrations in leaves, and the grain yield of arabica coffee (Coffea arabica) fertilized with rates of N as coated and conventional urea, in a sandy soil under rainfed conditions. The experiment was carried out over three crop years, using 'Mundo Novo IAC 388-17-1' coffee, in a randomized complete block design, in a 3×2+1 factorial arrangement, with three treatments with 150, 300, and 600 kg ha-1 N, as coated and conventional urea, and a control without N, with six replicates. Nitrogen increased stem diameter, plant height, N concentrations and relative chlorophyll index in the leaves, as well as grain yield. Over the three crop years, the highest N...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arabica; Grain yield; Mineral nutrition; Nitrogen; Slow release.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102101

Arbuscular mycorrhizal fungi in organic systems
Provedor de dados: 21
Autores: Hodge, A; Gosling, Paul; Goodlass, G; Bending, Gary.
Arbuscular mycorrhizal fungi (AMF) are potential contributors to plant nutrition and pathogen suppression in low input agricultural systems, although individual species of AMF vary widely in their functional attributes. Recent studies at HRI and elsewhere have suggested that in some agricultural systems inoculum of AMF is substantially lower under conventional management relative to that under organic management. Further studies have suggested that conventional management selects AMF communities with limited benefits to their plant hosts relative to those in organic systems. There is a need to investigate the generality of these findings, and their implications for the productivity of organic systems, particularly during the period following conversion to...
Tipo: Report
Palavras-chave: Soil biology; Biodiversity and ecosystem services; Crop husbandry.
Ano: 2004
URL: http://orgprints.org/6772/1/OF0333_2173_FRP.pdf

Archisepsis scabra (Loew 1861) (Diptera: Sepsidae), new host for the parasitoid Triplasta coxalis (Ashmead, 1865) (Hymenoptera: Figitidae: Eucoilinae) in Brazil
Provedor de dados: 64
Autores: Marchiori,Carlos Henrique; Ferreira,Marcos Evangelista; Barbaresco,Luiz Fernando.
The aim of this study is to report the first occurrence of the parasitoid Triplasta coxalis (Ashmead, 1865) (Hymenoptera: Figitidae: Eucoilinae) in pupae of Archisepsis scabra (Loew, 1861) (Diptera: Sepsidae) in cattle dung in Brazil. The experiment was carried out in Monte Alegre, MG. One obtained the pupae through the flotation method. They were individually placed in gelatin capsules until the emergence of the adult dipterous or their parasitoids. Fourty seven pupae of A. scabra were obtained, two of which yielded the parasitoid T. coxalis. The percentage of parasitism was 4.3%.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Cattle dung; Natural enemy; Parasitism; Triplasta; Archisepsis.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542008000400042

Arctic Ocean freshwater content and its decadal memory of sea-level pressure
Provedor de dados: 5
Autores: Johnson, Helen L.; Cornish, Sam B.; Kostov, Yavor; Beer, Emma; Lique, Camille.
Arctic freshwater content (FWC) has increased significantly over the last two decades, with potential future implications for the Atlantic meridional overturning circulation downstream. We investigate the relationship between Arctic FWC and atmospheric circulation in the control run of a coupled climate model. Multiple linear lagged regression is used to extract the response of total Arctic FWC to a hypothetical step increase in the principal components of sea‐level pressure. The results demonstrate that the FWC adjusts on a decadal timescale, consistent with the idea that wind‐driven ocean dynamics and eddies determine the response of Arctic Ocean circulation and properties to a change in surface forcing, as suggested by idealized models and theory....
Tipo: Text
Palavras-chave: Arctic Ocean; Climate change; Interannual variability; Freshwater; Adjustment timescales; Ocean dynamics.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00440/55117/56571.pdf

Ardra profiles of bacteria and archaea in mangrove sediments with different levels of contamination in the estuarine complex of Paranaguá, Brazil
Provedor de dados: 52
Autores: Ribeiro,Catherine Gérikas; Steffens,Maria Berenice Reynaud; Etto,Rafael Mazer; Galvão,Carolina Weigert; Martins,César de Castro; Pedrosa,Fábio de Oliveira; Kolm,Hedda Elisabeth.
The mangrove's sediments from the coastal areas under human activities may contain significant contaminations by hydrocarbons, even when there are no visual evidences of it. The microorganisms are essential to these ecosystems, especially in the control of their chemical environment. Sediment samples were collected in two regions under different environment conditions (pristine and contaminated) of the Paranaguá Estuarine Complex (Paranaguá Bay and Laranjeiras Bay), Brazil. Aliphatic hydrocarbons were determined by the GC-FID to assess the status of contamination of the studied areas. The total DNA was extracted from these samples. The 16S rRNA gene was amplified by the PCR reactions with the pair of primers 21F and 958R for the archaeal domain, and 27F...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Mangroves; Archaea; Bacteria; 16S rRNA; ARDRA; Aliphatic hydrocarbons.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000200013

Are communication activities shaped by environmental constraints in reverberating and absorbing forest habitats?
Provedor de dados: 42
Autores: Manthevon,Nicolas; Aubin,Thierry; Dabelsteen,Torben; Vielliar,Jacques M.E.
In the dense vegetation of temperate or tropical forests, communication processes are constrained by propagation-induced modifications of the transmitted sounds. The presence of leaves, trunks and branches induces important sound reverberation and absorption leading to diminution of the signal energy as well as qualitative modifications. The aim of this paper is to briefly review the different strategies used by birds to manage with these constraints. At the emitter's level, an adapted emission behavior which takes into account both the physical heterogeneities of the forest environment and the temporal variations of the acoustic constraints, is especially useful to control the active space of signaling. The coding of information into acoustic parameters...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acoustic communication; Propagation-induced modifications; Environmental constraints; Evolution of communication.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000200011

Are Consumers Color Blind?: an empirical investigation of a traffic light advisory for sustainable seafood
Provedor de dados: 31
Autores: Hallstein,   Eric; Villas-Boas,   Sofia Berto.
This paper empirically investigates consumer response to a traffic light advisory for environmentally sustainable seafood, which was implemented in the seafood department of a regional supermarket chain in the United States. Green meant 'best choice'; yellow meant 'proceed with caution'; red meant 'worst choice'. Using a unique product-level panel scanner data set capturing sales information for 2 treatment stores and 8 nearby control stores, we apply a difference-in-differences identification strategy to estimate the impact of color-coded labels on consumers' purchases. We find that the advisory leads to no significant difference in total seafood sales. Green sales significantly increase an average of 29% per week; yellow sales significantly decrease an...
Tipo: Working Paper
Palavras-chave: Sustainable seafood; Fisheries crisis; FishWise; Traffic light advisory; Mercury; Consumer/Household Economics.
Ano: 2009
URL: http://purl.umn.edu/120535

Are Emissions Permits Regressive?
Provedor de dados: 31
Autores: Parry,   Ian W.H.
Grandfathered emissions permits redistribute income to wealthy households by creating firm rents that ultimately accrue to shareholders. Consequently, they can be highly regressive, even if the poor do not have large budget shares for polluting goods. Using an analytical model, this paper estimates the burden borne by different income groups when emissions permits are used to control power plant emissions of carbon, SO2, and NOx. We also compare the burden borne by poor households under permits with that under emissions taxes, performance standards, technology mandates, and input taxes. And we show how the social costs of policies differ from efficiency costs when society has aversion to inequality.
Tipo: Working or Discussion Paper
Palavras-chave: Equity effects; Pollution controls; Emissions permits; Social welfare function; Environmental Economics and Policy; Q28; H22; H23.
Ano: 2003
URL: http://purl.umn.edu/10523

ARE EXPERIENCE AND SCHOOLING COMPLEMENTARY? EVIDENCE FROM MIGRANTS' ASSIMILATION IN THE BANGKOK LABOR MARKET
Provedor de dados: 31
Autores: Yamauchi,   Futoshi.
This paper models the assimilation process of migrants and shows evidence of the complementarity between their destination experience and upon-arrival human capital. Bayesian learning and dynamics of matching are modeled and empirically assessed, using panel data of wages from the Bangkok labor market in Thailand. The analysis incorporates (1) the heterogeneity of technologies and products, characteristic of urban labor markets, (2) imperfect information on migrants' types and skill demanded in the markets, and (3) migrants' optimal learning over time. Returns to destination experience emerge endogenously. Estimation results, which control migrants' selectivity by first-differencing procedures, show that (1) schooling returns are lower for migrants than...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital.
Ano: 2003
URL: http://purl.umn.edu/16385

Are hake otolith macrostructures randomly deposited? Insights from an unsupervised statistical and quantitative approach applied to Mediterranean hake otoliths
Provedor de dados: 5
Autores: Courbin, Nicolas; Fablet, Ronan; Mellon-duval, Capucine; De Pontual, Helene.
Individual fish age data are crucial to fish stock assessment, so their accuracy and precision are vital. The acquisition of age data most often relies on interpreting fish otoliths, a complex task in which expert subjectivity increases with the complexity of the structural patterns of the otoliths. The question arises for certain fish species (e.g. hake, Merluccius merluccius) whether the deposition of otolith macrostructures is meaningful for age estimation. A quantitative method based on the evaluation of otolith similarity in terms of structural patterns is presented to investigate this issue. It relies on the determination of a typology of otolith macrostructures from an unsupervised statistical analysis of the distributions of their characteristics....
Tipo: Text
Palavras-chave: Quality control; Otolith; Merluccius merluccius; Growth; Age estimation method; Age.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2678.pdf

Are high-lysine cereal crops still a challenge?
Provedor de dados: 56
Autores: Ferreira,R.R.; Varisi,V.A.; Meinhardt,L.W.; Lea,P.J.; Azevedo,R.A.
The essential amino acids lysine and threonine are synthesized in higher plants via a pathway starting with aspartate that also leads to the formation of methionine and isoleucine. Lysine is one of most limiting amino acids in plants consumed by humans and livestock. Recent genetic, molecular, and biochemical evidence suggests that lysine synthesis and catabolism are regulated by complex mechanisms. Early kinetic studies utilizing mutants and transgenic plants that over-accumulate lysine have indicated that the major step for the regulation of lysine biosynthesis is at the enzyme dihydrodipicolinate synthase. Despite this tight regulation, recent strong evidence indicates that lysine catabolism is also subject to control, particularly in cereal seeds. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lysine; Threonine; Aspartate; Nutritionally improved crops; Methionine; Amino acids.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000700002

Are homeopathics able to replace antibiotics in the therapy of bovine mastitis?   A placebo controlled randomized double-blind trial
Provedor de dados: 21
Autores: Klocke, Peter; Fidelak, Christian; Garbe, Sylvia; Rothe, Johanna; Paal, Kerstin; Spranger, Joerg; Merck, Carl-Christian.
To evaluate the effects of homeopathics on clinical mastitis cows and herd udder health this investigation was conducted in a Brandenburg bio-dyn herd of about 300 cows in two phases using a randomized doubleblind control trial design. After the first part in July 2002 the results preliminarily were evaluated and then the whole concept due to unsatisfying results was adapted. In Phase 1 a number of 121 clinical mastitis cases with 137 affected quarters matched the including criteria, in Phase 2 the number was 126 cows with 148 quarters. These animals were allocated to a code number which classified the case to Verum (n=65 and n=60) or placebo group (n=56 and n=66).   In case of clinical mastitis cows were treated either by the oral dilution contending the...
Tipo: Conference paper, poster, etc.
Palavras-chave: Health and welfare.
Ano: 2004
URL: http://orgprints.org/6227/1/WBC%2D2004%2DPoster_PK.pdf

Are men evolutionarily wired to love the &amp;#x22;Easy&amp;#x22; buttons?
Provedor de dados: 17
Autores: Irina Trofimova.
Men&amp;#x27;s drive for group control and power appears to be an evolutionary inheritance, but it is females, and not males, who developed better abilities for prolonged control and group interaction while males have higher rates of ADHD and autism. This contradictory allocation of sex-related abilities describes the observable behavior, but not the internal meaning attribution leading to the motivation of men and women. Our study in Canada, China and Russia shows that men estimate power- and status-related concepts in significantly more positive terms than women, but give significantly more negative estimations to work-related and reality-related concepts. Men also have a consistent tendency to estimate concepts as less real (even...
Tipo: Manuscript
Palavras-chave: Neuroscience.
Ano: 2011
URL: http://precedings.nature.com/documents/5562/version/1

Are personality traits consistent in fish? − The influence of social context
Provedor de dados: 5
Autores: Castanheira, Maria Filipa; Cerqueira, Marco; Millot, Sandie; Goncalves, Rui A.; Oliveira, Catarina C. V.; Conceicao, Luis E. C.; Martins, Catarina I. M.
Individual differences in behavioural and physiological responses to challenges are progressively accepted as adaptive variation and reveal a strong degree of evolutionary conservation throughout the vertebrate taxa. Previous studies in gilthead seabream (Sparus aurata) suggested that individual differences in behaviour reflect distinct coping styles or personality, contrasting consistent traits associations. One of the traits that have been shown to be consistent over time and across context is the escape response under a restraining test. Using this trait as a proxy of personality in seabream the influence of social context in the consistency of escape behaviour was investigated. Individually tagged juvenile seabream (n = 360; 70.18 ± 11.44 g; mean ± SD)...
Tipo: Text
Palavras-chave: Individual variation; Sparus aurata; Coping styles; Behavioural syndromes; Group composition; Social information.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00317/42865/42304.pdf

Are the beneficial cardiovascular effects of simvastatin and metformin also associated with a hormone-dependent mechanism improving insulin sensitivity?
Provedor de dados: 56
Autores: Bulcão,C.; Giuffrida,F.M.A.; Ribeiro-Filho,F.F.; Ferreira,S.R.G.
In addition to lipid-lowering and cardiovascular protective actions, statins may have beneficial effects on insulin sensitivity. The objective of the present study was to evaluate the effect of simvastatin therapy on insulin resistance and on leptin, adiponectin, and C-reactive protein (CRP) levels, as compared to metformin, in overweight pre-diabetic subjects. Forty-one subjects with BMI &gt;25 kg/m² and impaired fasting glucose or impaired glucose tolerance were randomized to take simvastatin, 20 mg/day (N = 20) or metformin, 1.7 g/day (N = 21) for 16 weeks. Blood samples for the determination of metabolic, hormonal, and inflammatory parameters were obtained at baseline and after each treatment. After metformin therapy, significant reductions in mean BMI...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Simvastatin; Metformin; Insulin resistance; Leptin; Adiponectin.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000200009

Are the motives of recent adopters in line with the conventionalisation hypothesis?
Provedor de dados: 21
Autores: Best, Henning.
To contribute to the discussion on the con-ventionalisation hypothesis, empirical data on mo-tives for the conversion to organic farming by recent adopters is analysed. The results indicate that the preferences and attitudes of the new organic farmers contradict the conventionalisation scenario: (1) Com-pared to conventional farmers, the new adopters have lower preferences for high yields, market prices and easy control of weed and pests, but higher prefer-ences for receiving subsidies and not using chemicals. (2) Environmental concern has an effect on the odds of an adoption of organic farming. Thus, new organic farmers significantly differ in their preferences and attitudes from conventional farmers – they hold a less productivist, relatively alternative...
Tipo: Conference paper, poster, etc.
Palavras-chave: Policy environments and social economy; "Organics" in general; Farming Systems.
Ano: 2006
URL: http://orgprints.org/7114/1/paper%2DJOC06%2DHBest.doc

Are there alternatives to copper for controlling grapevine downy mildew in organic viticulture?
Provedor de dados: 21
Autores: Dagostin, Silvia; Schärer, Hans-Jakob; Pertot, Ilaria; Tamm, Lucius.
Downy mildew caused by the obligate biotrophic oomycete Plasmopara viticola is one of the most important and devastating diseases of grapevine. Copper-based fungicides are used to control the disease in organic vineyards. However, since 2006, copper use has been limited by an European Commission regulation. In this study conducted from 2004 to 2007, we tested materials that might replace copper in organic viticulture, under controlled greenhouse and field conditions at two locations in Europe (northern Italy and Switzerland). We tested 112 different treatments, including biocontrol agents, materials of animal origin, homeopathic preparations, inorganic materials, microbial extracts, natural derivatives, plant extracts, physical methods and synthetic...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection.
Ano: 2011
URL: http://orgprints.org/26499/1/JCRP2633_DAgositn_etal_2011.pdf

Are Tomato-Spotted Wilt Virus Management Tactics Good Enough?
Provedor de dados: 31
Autores: Awondo,   Sebastain Nde; Fonsah,   Esendugue Greg; Riley,   David G.
Management of tomato-spotted wilt virus is complex and requires more than one treatment for near optimum results. We investigated tomato and pepper growers’ perception on the effectiveness of tactics using Bayesian Logistic regression. The perceived chance that each tactics will control the disease was about a coin toss.
Tipo: Presentation
Palavras-chave: Tomato-spotted wilt virus; Pest and disease management; Bayesian logistic regression; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Food Security and Poverty; Production Economics; Research and Development/Tech Change/Emerging Technologies; Risk and Uncertainty.
Ano: 2012
URL: http://purl.umn.edu/119790

Are Traditional Cooperatives an Endangered species? About Shrinking Satisfaction, Involvement and Trust
Provedor de dados: 31
Autores: Nilsson,   Jerker; Kihlen,   Anna; Norell,   Lennart.
Several researchers, who have observed that traditional cooperatives have difficulties in modern markets, mention a number of behavioral concepts characterizing the members. This study attempts to empirically test these concepts. It is based on a survey among members of a large traditional Swedish cooperative. The members perceive the cooperative to be so large and complex that they have difficulties understanding the operations. Hence, they become dissatisfied and uninvolved, and they mistrust the leadership. Moreover, they do not believe that the cooperative can be remodeled to strengthen member control. The findings support the behavioral explanations presented in prior studies.
Tipo: Journal Article
Palavras-chave: Agricultural cooperative; Property rights; Satisfaction; Involvement; Trust; Consumer/Household Economics.
Ano: 2009
URL: http://purl.umn.edu/92574

Are we making progress in mechanical weed control research?
Provedor de dados: 21
Autores: Rasmussen, Jesper.
This study investigates whether researchers’ perceptions of good research are in agreement with current research practice as reflected in Weed Research. A high degree of agreement is assumed to indicate progress.  The instrument used to survey researchers perceptions was a questionnaire consisting of 28 items related to (1) research methodologies, (2) research priorities, (3) quality of publications, (4) future developments in technology and agriculture and (5) general attitudes to alternative and conventional agriculture. Questions about gender and personal research engagement were also laid down in the questionnaire. The questionnaire was sent out by e-mail to about 140 researchers on the mailing list of the EWRS – Physical and Cultural Weed Control...
Tipo: Conference paper, poster, etc.
Palavras-chave: Research methodology and philosophy; Weed management.
Ano: 2004
URL: http://orgprints.org/2443/1/Are_we_making_progress.pdf

Are we making progress in mechanical weed control research?
Provedor de dados: 21
Autores: Rasmussen, Jesper.
This study investigates whether researchers’ perceptions of good research are in agreement with current research practice as reflected in Weed Research. A high degree of agreement is assumed to indicate progress.    The instrument used to survey researchers perceptions was a questionnaire consisting of 28 items related to (1) research methodologies, (2) research priorities, (3) quality of publications, (4) future developments in technology and agriculture and (5) general attitudes to alternative and conventional agriculture. Questions about gender and personal research engagement were also laid down in the questionnaire. The questionnaire was sent out by e-mail to about 140 researchers on the mailing list of the EWRS – Physical and Cultural Weed Control...
Tipo: Conference paper, poster, etc.
Palavras-chave: Research methodology and philosophy; Weed management.
Ano: 2004
URL: http://orgprints.org/2500/1/EWRS_JR.pdf

Argentinean cultivars of Vitis vinifera grow better than European ones when cultured in vitro under salinity
Provedor de dados: 47
Autores: Cavagnaro,Juan B.; Ponce,María T.; Guzmán,Javier; Cirrincione,Miguel A.
Argentinean Vitis vinifera cultivars although originated from Europe, have clear ampelographic and genotypic differences as compared with the European cultivars currently used in wine making. In vitro evaluation of salt tolerance has been used in many species. Our hypothesis was that Argentinean cultivars are more tolerant to salinity than European ones. Three European cultivars, Malbec, Cabernet Sauvignon and Chardonnay and four Argentinean cultivars, Cereza, Criolla Chica, Pedro Gimenez and Torrontes Riojano were tested by in vitro culture. Treatments included: 1) Control, 2) 60 mEq/L of a mixture of three parts of NaCl and one part of CaCl2 and 3) 90 mEq/L of the salt mixture. Results from two experiments (I and II) are reported. No differences were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitis vinifera; Cultivars; Salt tolerance; In vitro; G rowth.
Ano: 2006
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452006000100001

Arginine improves nutritional quality of sow milk and piglet performance
Provedor de dados: 96
Autores: Moreira,Rennan Herculano Rufino; Lanferdini,Eloiza; Fonseca,Leonardo da Silva; Chaves,Rhuan Filipe; Garbossa,Cesar Augusto Pospissil; Saraiva,Alysson; Nogueira,Eduardo Terra; Abreu,Márvio Lobão Teixeira de.
ABSTRACT The objective of this study was to evaluate the effect of L-arginine supplementation in lactation diets on the productive and reproductive performance of pluriparous sows and their litters. Seventy-six sows of the same genetic line were assigned to four treatments in a completely randomized design with 19 replicates. The experimental unit was the sow and its respective litter. Treatments comprised a control diet (no L-arginine supplementation) and other three diets obtained by top dressing the control diet with 0.5, 1.0, and 1.5% of L-arginine. L-arginine supplementation had no effect on any performance variables, body condition, milk production, or weaning-estrus interval. There was a quadratic effect on percentage of protein and fat in milk as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acid; Lactation; Milk composition; Reproduction; Swine.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100530

Arginine induces GH gene expression by activating NOS/NO signaling in rat isolated hemi-pituitaries
Provedor de dados: 56
Autores: Olinto,S.C.F.; Adrião,M.G.; Castro-Barbosa,T.; Goulart-Silva,F.; Nunes,M.T.
The amino acid arginine (Arg) is a recognized secretagogue of growth hormone (GH), and has been shown to induce GH gene expression. Arg is the natural precursor of nitric oxide (NO), which is known to mediate many of the effects of Arg, such as GH secretion. Arg was also shown to increase calcium influx in pituitary cells, which might contribute to its effects on GH secretion. Although the mechanisms involved in the effects of Arg on GH secretion are well established, little is known about them regarding the control of GH gene expression. We investigated whether the NO pathway and/or calcium are involved in the effects of Arg on GH gene expression in rat isolated pituitaries. To this end, pituitaries from approximately 170 male Wistar rats (~250 g) were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arginine; GH mRNA expression; Nitric oxide; Calcium (Ca2+); Cyclic guanosine monophosphate.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001100011

Argo Data 1999–2019: Two Million Temperature-Salinity Profiles and Subsurface Velocity Observations From a Global Array of Profiling Floats
Provedor de dados: 5
Autores: Wong, Annie P. S.; Wijffels, Susan E.; Riser, Stephen C.; Pouliquen, Sylvie; Hosoda, Shigeki; Roemmich, Dean; Gilson, John; Johnson, Gregory C.; Martini, Kim; Murphy, David J.; Scanderbeg, Megan; Bhaskar, T. V. S. Udaya; Buck, Justin J. H.; Merceur, Frederic; Carval, Thierry; Maze, Guillaume; Cabanes, Cécile; André, Xavier; Poffa, Noe; Yashayaev, Igor; Barker, Paul M.; Guinehut, Stéphanie; Belbéoch, Mathieu; Ignaszewski, Mark; Baringer, Molly O'Neil; Schmid, Claudia; Lyman, John M.; Mctaggart, Kristene E.; Purkey, Sarah G.; Zilberman, Nathalie; Alkire, Matthew B.; Swift, Dana; Owens, W. Brechner; Jayne, Steven R.; Hersh, Cora; Robbins, Pelle; West-mack, Deb; Bahr, Frank; Yoshida, Sachiko; Sutton, Philip J. H.; Cancouët, Romain; Coatanoan, Christine; Dobbler, Delphine; Juan, Andrea Garcia; Gourrion, Jerome; Kolodziejczyk, Nicolas; Bernard, Vincent; Bourlès, Bernard; Claustre, Hervé; D'Ortenzio, Fabrizio; Le Reste, Serge; Le Traon, Pierre-yves; Rannou, Jean Philippe; Saout-grit, Carole; Speich, Sabrina; Thierry, Virginie; Verbrugge, Nathalie; Angel-benavides, Ingrid M.; Klein, Birgit; Notarstefano, Giulio; Poulain, Pierre-marie; Vélez-belchí, Pedro; Suga, Toshio; Ando, Kentaro; Iwasaska, Naoto; Kobayashi, Taiyo; Masuda, Shuhei; Oka, Eitarou; Sato, Kanako; Nakamura, Tomoaki; Sato, Katsunari; Takatsuki, Yasushi; Yoshida, Takashi; Cowley, Rebecca; Lovell, Jenny L.; Oke, Peter R.; Van Wijk, Esmee M.; Carse, Fiona; Donnelly, Matthew; Gould, W. John; Gowers, Katie; King, Brian A.; Loch, Stephen G.; Mowat, Mary; Turton, Jon; Rama Rao, E. Pattabhi; Ravichandran, M.; Freeland, Howard J.; Gaboury, Isabelle; Gilbert, Denis; Greenan, Blair J. W.; Ouellet, Mathieu; Ross, Tetjana; Tran, Anh; Dong, Mingmei; Liu, Zenghong; Xu, Jianping; Kang, Kiryong; Jo, Hyeongjun; Kim, Sung-dae; Park, Hyuk-min.
In the past two decades, the Argo Program has collected, processed, and distributed over two million vertical profiles of temperature and salinity from the upper two kilometers of the global ocean. A similar number of subsurface velocity observations near 1,000 dbar have also been collected. This paper recounts the history of the global Argo Program, from its aspiration arising out of the World Ocean Circulation Experiment, to the development and implementation of its instrumentation and telecommunication systems, and the various technical problems encountered. We describe the Argo data system and its quality control procedures, and the gradual changes in the vertical resolution and spatial coverage of Argo data from 1999 to 2019. The accuracies of the...
Tipo: Text
Palavras-chave: Global; Ocean; Pressure; Temperature; Salinity; Argo; Profiling; Floats.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00652/76377/77385.pdf

Argo quality control manual for biogeochemical data
Provedor de dados: 5
Autores: Schmechtig, Catherine; Thierry, Virginie; The Bio Argo Team,.
This document is the Argo quality control manual for biogeochemical data. It describes two levels of quality control: • The first level is the real-time system that performs a set of agreed automatic checks. • The second level is the delayed-mode quality control system.
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00298/40879/42267.pdf

Argo Quality Control Manual for CTD and Trajectory Data
Provedor de dados: 5
Autores: Wong, Annie; Keeley, Robert; Carval, Thierry; Argo Data Management Team,.
A CTD (conductivity, temperature, depth) device measures temperature and salinity versus pressure. This document is the Argo quality control manual for CTD and trajectory data. It describes two levels of quality control:  - The first level is the real-time system that performs a set of agreed automatic checks.  - The second level of quality control is the delayed-mode system. These quality control procedures are applied to the parameters JULD, LATITUDE, LONGITUDE, PRES, TEMP, PSAL, and CNDC.
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00228/33951/32470.pdf

Argo quality control manual for dissolved oxygen concentration
Provedor de dados: 5
Autores: Thierry, Virginie; Bittig, Henry; The Argo-bgc Team,.
This document is the Argo quality control manual for Dissolved oxygen concentration. It describes two levels of quality control: • The first level is the real-time system that performs a set of agreed automatic checks.  • Adjustment in real-time can also be performed and the real-time system can evaluate quality flags for adjusted fields  • The second level is the delayed-mode quality control system.
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00354/46542/59751.pdf

ARGO requirements for more rapid and easier access to CTD data
Provedor de dados: 20
Autores: Pouliquen, S.; Diggs, S.; Roemmich, D.; Gould, J.; Desaubies, Y.
Argo is the most visible and innovative new element of the sustained observing system for the open ocean. Since mid-2004 it has become the most abundant source of profile data from the ocean and that abundance will continue to increase as the array grows to its target of 3000 floats that will deliver 100,000 CTD profiles per year by 2007. Paradoxically, the existence of Argo has highlighted the importance of research ship-based CTD observations. Argo floats are expendable, consequently there is no opportunity to do laboratory calibrations to check sensor drift. A method has been devised to estimate sensor drift by making comparisons with nearby (in space and time) CTD profiles collected by research ships and by comparing new and old floats. This method is...
Tipo: Conference Material
Ano: 2007
URL: http://hdl.handle.net/1834/2866

ARMADILHAS para captura de Rhynchophorus palmarum (Col.: Curculionidae), em dendezais.
Provedor de dados: 14
bitstream/item/38482/1/ArmadilhasParaCapturaRhynchophorus.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Controle de praga; Elaeis guinensis.; Armadilha; Dendê.; Rhynchophorus palmarum; Pest control; Traps.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/384271

Armazenamento a frio e aplicação de reguladores vegetais no enraizamento de estacas radiculares e caulinares de framboeseira
Provedor de dados: 65
Autores: Tiberti,Andrei Spaziani; Bianchini,Flávio Gabriel; Pio,Rafael; Curi,Paula Nogueira; Moura,Pedro Henrique Abreu; Tadeu,Maraísa Hellen.
The objective of this research was to verify the potential rhizogenic stem cuttings and root of raspberry (Rubus idaeusL.). Cuttings of 'Batum' cultivar was stored cold (4°C) for 10, 20 and 30 days, and a control without storage. Subsequently, the cuttings were treated with indolebutyric acid (IBA) at 0, 1000, 2000, 3000 and 4000mg L-1 and root cuttings with benzylaminopurine (BAP) at 0, 300, 600, 900, 1200 and 1500mg L-1 by 10 seconds. The cuttings were buried in 2/3 of its length in the vertical position, and root was completely buried in the horizontal position at three inches deep. It was used vermiculite medium as substrate, and these experiments were conducted in a greenhouse with 50% shading. Evaluations were made ​​75 days after planting the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rubus idaeusL.; Propagação; Ácido indolilbutírico; Benzilaminopurina.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000801445

Armazenamento e controle de pragas do milho.
Provedor de dados: 14
Autores: SANTOS, J. P. dos; CRUZ, I.; FONTES, R. de A.
Controle de pragas no milho armazenado; Pragas principais; Controle de insetos; Controle de roedores; Estruturas para o armazenamento de milho; Armazenamento de milho em espigas; Armazenamento de milho em sacas; Armazenamento de milho a granel; Armazenamento de milho em silos subterraneos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle de praga; Maize.; Armazenamento; Milho; Praga; Zea Mays.; Pest control; Pests; Storage.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/476466

Armazenamento: ecossistema e controle de pragas.
Provedor de dados: 14
Autores: CAJUEIRO, I. V. de M.
A moderna tecnologia agrícola tem um custo muito elevado e, para que se justifique sua adoção plena, o agricultor necessita ter a garantia de lucratividade. No momento da colheita, a oferta do produto colhido é farta, devido ao fato de que todos os que o colhem o fazem na mesma época. A melhor maneira de garantir uma remuneração compatível com os custos de produção é adquirir um poder de retenção da safra, para comercializá-la no momento mais oportuno.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Produto agrícola; Product storage.; Praga de planta; Produto; Armazenamento; Roedor; Controle químico; Ecossistema.; Pests; Chemical control; Storage pests; Mice.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/963904

Armazenamento, germinação de sementes e crescimento inicial de mudas de Enterolobium contortisiliquum (Vell.) Morong - DOI: 10.4025/actascibiolsci.v27i2.1318
Provedor de dados: 3
Autores: Scalon, Silvana de Paula Quintão; UFMS; Mussury, Rosilda Mara; UNIGRAN; Wathier, Fabiana; UNIGRAN; Gomes, Ana Amélia; UNIGRAN; Silva, Keila Aparecida; UNIGRAN; Pierezan, Luciane; UNIGRAN; Scalon Filho, Homero; UFMS.
Avaliou-se o potencial de germinação das sementes de orelha-de-macaco após o armazenamento à temperatura ambiente, os tratamentos pré-germinativos e o crescimento inicial das mudas sob sombreamento. As sementes foram armazenadas a temperatura ambiente durante 5, 8 e 12 meses. Logo após, receberem os seguintes tratamentos de escarificação + embebição: 1) H2SO4 /5`; 2) 2SO4/5`+água/24h; 3) H2SO4/5`+GA 200 mg.L-1/24h; 4) H2SO4/5`+KNO3 1%/24h; 5) H2SO4/10`; 6) H2SO4/10`+água/24h; 7) H2SO4/10`h+GA 200 mg.L-1/24hs; 8) H2SO4 /10`+ KNO3 1%/24hs; 9) Testemunha. A semeadura ocorreu em Câmara de germinação a 20ºC/30o C escuro/luz. O experimento foi conduzido em DIC no fatorial 3 x 9 com 4 repetições de 20 sementes. As mudas foram mantidas em sombrite 30% e 50% de...
Palavras-chave: 2.03.00.00-0    Botânica escarificação; Sombreamento; Orelha-de-macaco 2.03.00.00-0    Botânica.
Ano: 2005
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1318

Armazenamento refrigerado de laranjas cv. Navelina em diferentes concentrações de cera à base de carnaúba - DOI: 10.4025/actasciagron.v29i1.72
Provedor de dados: 1
Autores: Malgarim, Marcelo Barbosa; IAPAR; Cantillano, Rufino Fernando Flores; EMBRAPA Clima Temperado; Treptow, Rosa de Oliveira; UFPEL.
Objetiva-se com este trabalho avaliar os efeitos de concentrações de cera de carnaúba e períodos de armazenamento na conservação de laranjas Navelina. Após a colheita, as frutas foram pré-resfriadas durante 12 horas a 3ºC e receberam os tratamentos: T1) frutas sem aplicação de cera (testemunha); T2) cera de carnaúba a 50%, diluída em água; T3) cera a 100% (sem diluição). As laranjas foram armazenadas durante 30, 60 e 90 dias em temperatura de 3ºC e UR de 90-95%. Após o armazenamento refrigerado, as frutas foram submetidas à temperatura de 8&amp;plusmn;0,5ºC e UR de 75-80%, durante quatro dias simulando a comercialização. As variáveis avaliadas foram: perda de massa; cor; pH; sólidos solúveis totais (SST); acidez total titulável (ATT); relação SST/ATT;...
Palavras-chave: 5.07.02.02-5    Tecnologia de Produtos de Origem Vegetal atmosfera modificada; Película; Citros; Qualidade.
Ano: 2007
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/72

Arms and disarmament SIPRI findings
Provedor de dados: 121
Autores: ed. por Marek Thee.
Tipo: Text
Palavras-chave: DESARME; ARMAS NUCLEARES; CONTROL DE ARMAMENTOS; STOCKHOLM INTERNATIONAL PEACE RESEARCH INSTITUTE - SIPRI.
Ano: 1986
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=114982&tab=opac&oai:flacso.org.ec:114982

Arms control and cooperative security
Provedor de dados: 121
Autores: ed. por Jeffy A.  Larsen; James J. Wirtz.
Tipo: Text
Palavras-chave: CONTROL DE ARMAS; SEGURIDAD INTERNACIONAL.
Ano: 2009
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=123378&tab=opac&oai:flacso.org.ec:123378

ARRANGEMENT AND DISTRIBUTION OF THE ARTERIAL CIRCLE IN BRAIN OF WILD BOAR (Sus Scrofa Scrofa) LINNAEUS (1758): QUILITATIVE AND QUANTITATIVE ANALYSIS
Provedor de dados: 77
Autores: Câmara Filho,J. A.; Sherer,P. O.; Sherer,R. R.; Meneses,C. M. C.; Babinski,M. A.
SUMMARY: Thirteen brains of wild boar (Sus scrofa scrofa) were investigated with the purpose to discrebe the formation and the branchings of the brain arterial circle and basilar artery, from injetions of colored latex into the arteries of the base of the brain, and to establish the degree of correlativity between the rostro-caudal, latero-lateral lengths, weight, volume, carotid and basilar arteries diameter and the length of the basilar artery. To the anatomic study male and female heardswere used, from the slaughterhouse Pro Fauna licensed to abate and comercialize wild animal and under the Federal Inspection Service (SIF) control, situated in Iguape city, São Paulo. In all animal latex was injected after what the arteries of the base of the brain were...
Tipo: Journal article
Palavras-chave: Artery; Internal carotid artery Basilar artery Brain arterial circle.
Ano: 2003
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000400002

ARRANJO PRODUTIVO FUMAGEIRO DO RIO GRANDE DO SUL: UM ESTUDO SOBRE OS NOVOS CENÁRIOS COMPETITIVOS
Provedor de dados: 31
Autores: Alievi,   Rejane Maria; Wegner,   Douglas; Maciel,   Alessandra Costenaro.
O artigo analisa as especificidades e as estratégias competitivas do arranjo produtivo fumageiro, localizado na Região do Vale do Rio Pardo, Estado do Rio Grande do Sul.  Historicamente, a cadeia produtiva fumageira é a atividade que dinamiza a economia regional. Porém, com o aumento das campanhas antitabagistas e a assinatura de acordos internacionais para controle do consumo de cigarros, estudos sobre concentração e dependência produtiva são necessários para que estas economias possam analisar oportunidades para promover a diversificação da produção. Neste sentido, o estudo baseou-se nas abordagens teóricas sobre arranjos produtivos locais e realizou entrevistas em profundidade com os principais agentes que atuam direta e indiretamente no arranjo...
Tipo: Conference Paper or Presentation
Palavras-chave: Tabaco; Arranjo produtivo local; Agricultura; Estratégias; Tobacco; Local productive arrangement; Agriculture; Strategies; Crop Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/109714

Arsenicais e inseticidas orgânicos sôbre o algodoeiro em terras roxa e arenosa
Provedor de dados: 43
Autores: Coury,Tufi; Ranzani,Guido.
The authors carried out a series of pots and plots experiments applying arsenical and organic insecticides to cotton plants cultivated in "terra roxa" and in a sandy soil. The first results were presented in 1947, to the la. Reunião Brasileira de Ciência do Solo (First Brazilian Congress of Soil Science); they pointed out the danger resulting from the accumulation of arsenic in soils due to the constant applications of arsenicais to control cotton pests; in the course of the time, the amount of residual arsenic in the soil would determine a decrease in cotton yield caused by its toxic effect on the crop. The following conclusions were drawn from the last three experiments: 1) the field experiment conducted in a sandy soil to which lead arseniate was...
Tipo: Info:eu-repo/semantics/article
Ano: 1953
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761953000100003

Artificial cooling as an alternative to increase productivity and welfare of steers under heat stress
Provedor de dados: 45
Autores: Correa-Calderón,A.; Morales,M.; Avendaño,L.; Leyva,C.; Rivera,F.; Díaz,R.; Soto-Navarro,S.
The effects of a cooling system on productive efficiency and welfare of Holstein steers were evaluated during the summer. Sixty steers in the finishing phase were randomly allotted to one of two treatment-groups. Animals of control group were only provided with shade (non-cooled group) and a group of animals under a cooling system were installed in the shaded area (cooled group), which were operated daily from 09am to 6pm during the 69d of the study. The averages of environmental temperature and relative humidity were 35.4°C and 35.3%, respectively, with a temperature-humidity index average of 81.4 during the study. Individual body weight was recorded every two weeks, while body surface temperature and respiratory frequency were recorded three times per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Steer; Cooling system; Feedlot; Heat stress; Performance.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000500024

Artificial diet for laboratory rearing of Condylorrhiza vestigialis (Guenée, 1854) (Lep.: Crambidae)
Provedor de dados: 42
Autores: CAMPOS,LUCAS S.; COELHO JR,ALOISIO; PARRA,JOSÉ ROBERTO P.
ABSTRACT The Brazilian Poplar Moth, Condylorrhiza vestigialis (Guenée), compromises the wood productivity of poplar trees (Populus sp.), mainly affecting the matchstick industry in southern Brazil. Considering the lack of information on rearing techniques for this insect, the objective of this study was to develop an artificial diet to rear C. vestigialis with biological characteristics similar to the wild insects. A properly diet will enable bio-ecological studies and biological control programs using the baculovirus Condylorrhiza vestigialis multiple nucleopolyhedrovirus (CvMNPV). To attain this objective, first, three artificial diets were tested. Only the diet based on corn, wheat germ and yeast as a protein source (Diet 3) was able to supply the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: IPM; Biological control; Forest entomology; Baculovirus.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100333

Artificial infestation of Boophilus microplus in beef cattle heifers of four genetic groups
Provedor de dados: 74
Autores: Silva,Ana Mary da; Alencar,Maurício Mello de; Regitano,Luciana Correia de Almeida; Oliveira,Márcia Cristina de Sena; Barioni Júnior,Waldomiro.
Resistance of beef cattle heifers to the cattle tick Boophilus microplus was evaluated by artificial infestation of 66 beef cattle heifers of the following genetic groups: 16 Nelore (NE), 18 Canchim x Nelore (CN), 16 Angus x Nelore (AN) and 16 Simmental x Nelore (SN). The animals, with a mean age of 16.5 months, were maintained with no chemical tick control in a Brachiaria decumbens pasture. Four artificial infestations with 20,000 B. microplus larvae were carried out 14 days apart and from day 18 to day 22 of each infestation the number of engorged female ticks (&gt; 4.5 mm) was counted on the left side of each heifer. Data were analyzed as the percentage of return (PR = percentage of ticks counted relative to the number infested), transformed to (PR)¼,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beef cattle; Crossbred; Tick resistance.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000600020

Artificial reefs: Using coal-fired power station wastes constructively for fishery enhancement
Provedor de dados: 5
Autores: Collins, K J; Jensen, A C; Lockwood, Apm.
Large quantities of pulverised fuel ash (PFA) are produced by coal-fired power stations, some of which is currently dumped into the sea. The planned fitting of flue gas desulphurisation (FGD) plant in the UK would produce comparable quantities of gypsum. While a fraction of both these wastes may be used commercially, an alternative, environmentally acceptable, use for the surplus material, the construction of artificial reefs, is being investigated. Possible leaching of heavy metal ions from the reef material is being investigated by direct analysis of the blocks. Additionally there is monitoring of metal levels in reef epibiota and mobile species in comparison to concrete control and natural reef organisms.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37888/35969.pdf

ARTRITE encefalite caprina a vírus (CAEV).
Provedor de dados: 14
Transmissão; Sintomas; Diagnóstico; Tratamento; Controle e prevenção.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: CAEV; Artrite Encefalite Caprina; Caprine arthritis encephalit virus.; Caprino; Doença animal; Sintoma; Transmissão de doença; Goats; Lentivirus; Disease transmission; Disease control.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/530449

ÁRVÍZVÉDELMI TÖLTÉSEK GYEPTAKARÓINAK HASZNA
Provedor de dados: 31
Autores: Felkai,   Beata Olga.
Az árvízvédelmi töltések védelmében, az árvizek levonulásában, ezáltal ma-gában az árvízvédelemben a gyepesítésnek jelentős szerepe van. Gazdaságossá-gát nem lehet egzakt módon bizonyítani, hiszen míg a létesítési és fenntartási költségeket egyértelműen meghatározhatjuk, a bevételi oldal összetett és nehezen számszerűsíthető.  Az árvízvédelmi földgátak gyepesítésének társadalmi hasznossága és gazda-sági előnye mégis vitathatatlan: - közvetlen gazdasági haszon: pl. fűtermés értékesítéséből származó bevétel; - közvetett gazdasági haszon: a kockáztatott vagyonérték sikeres védelme, emberélet védelme (nehezen számszerűsíthető, mérése a mikrorizikó fogal-mának bevezetésével vált kivitelezhetővé); - a társadalom számára is több szempontból kedvező hatással van:...
Tipo: Journal Article
Palavras-chave: Árvízvédelem; Kockázat; Gyepfelület; Vagyon; Gazdasági haszon - flood-prevention; Risk; Grass; Estate; Economical benefit; Agricultural and Food Policy; Land Economics/Use.
Ano: 2005
URL: http://purl.umn.edu/54338

Árvore decisória para o controle da mastite bovina em fazenda leiteira no Pantanal.
Provedor de dados: 14
Autores: SILVA, R. A. M. S.; COSTA, A. L. V. da; SIMÕES, R.
A mastite é um processo inflamatório da glândula mamária acompanhado da redução de secreção de leite. Bactérias são, como o Staphylococcus aureus, consideradas patógeno primário e tem sido o agente isolado mais freqüentemente tanto de infecções clínicas como subclínicas. O sistema APPCC é uma abordagem sistemática para controlar potenciais perigos na produção de alimentos. É um instrumento útil para avaliar perigos e estabelecer mecanismos de controle, sempre privilegiando a prevenção. O presente estudo teve como objetivo elaborar uma arvore decisória para auxiliar na tomada de decisão no controle de mastite usando princípios da análise de perigos em pontos críticos de controle em uma fazenda leiteira, do Pantanal.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Mastite; Controle; Bovine; Disease; Control.; Bovino; Doença.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811094

Arzneimitteleinsatz zur Steuerung des Reproduktionsgeschehens in der biolo-gischen Ferkelproduktion
Provedor de dados: 21
Autores: Hagmüller, Werner; Baumgartner, Johannes.
Under the rules of the EU Regulation 2092/91 “…the use of hormones or similar substances to control reproduction (e.g. induction or synchronisation of oestrus), or for other purposes, is prohibited. Nevertheless, hormones may be administered to an individual animal, as a form of therapeutic veterinary treatment.” This article tries to explain the difference between veterinary treatment and zootechnic measures in organic pig production such as synchronisation of oestrus and shows critical control points for the inspection body to improve the quality of inspection visits.
Tipo: Conference paper, poster, etc.
Palavras-chave: Pigs.
Ano: 2007
URL: http://orgprints.org/9539/1/9539_Hagm%C3%BCller_Poster.pdf

As cigarrinhas das pastagens e sugestões para o seu controle: contribuição ao manejo integrado das pragas das pastagens.
Provedor de dados: 14
Autores: NAVES, M. A.
bitstream/item/98797/1/cirtec-03.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Manejo integrado; Controle; Control; Insect; Kanaima vitrata; Mahanarva finbriolata; Pasture.; Brachiaria Decumbens; Cigarrinha das Pastagens; Cerrado; Deois Incompleta; Deois Flavopicta; Inseto; Metarhizium Anisopliae; Pastagem; Praga de Planta; Zulia Entreriana.; Pests.
Ano: 1980
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549424

As miíases na região neotropical (identificação, biologia, bibliografia)
Provedor de dados: 104
Autores: Guimarães,José Henrique; Papavero,Nelson; Prado,Ângelo Pires do.
Data are given on the identification, biology, ecology, hosts, geographical distribution, control, and other aspects of the myiasis-producing flies in the Neotropical Region. The bibliography contains almost 2400 references, mainly related to Cochliomyia (ca. 1170 references), Cuterebridae (with the exception of Dematobia hominis (over 390 references), and to Dermatobia hominis (over 520 references). For Cuterebridae and Cochliomyia the bibliography covers the Américas; for ali other groups it is restricted to the Neotropics.
Tipo: Info:eu-repo/semantics/article
Ano: 1982
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751982000400001

Ascaris lumbricoides: epitopes del Sistema P por método de cinética de la hemaglutinación
Provedor de dados: 38
Autores: Ponce de León,Patricia; Foresto,Patricia; Valverde,Juana.
Experiencias previas demostraron epitopes P1 en Ascaris lumbricoides por inhibición de la aglutinación. La cinética de la hemaglutinación aplica la extinción óptica relativa producida por un haz de luz trasmitido a través de una suspensión de pequeñas partículas, y permite obtener una estimación paramétrica de la tasa de hemaglutinación. El objetivo de este trabajo fue utilizar este método para demostrar la presencia de epitopes del Sistema P en extractos de A. lumbricoides. La técnica de inhibición de la aglutinación permitió seleccionar 10 extractos: 3 con y 7 sin epitopes P1. Se registró la cinética de la reacción Control: anti- P1- eritrocitos - P1 y la cinética de la misma reacción, previo contacto del anticuerpo con el extracto. Se calcularon y se...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cinética de la hemaglutinación; Epitopes P1; Ascaris lumbricoides.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572007000100011

Ascocotyle (Phagicola) longa parasitizing mullet (Mugil liza Valenciennes, 1836) in São Paulo: occurrence, importance to public health and control strategies
Provedor de dados: 195
Autores: Citti, André Lee; Ribeiro, Naassom Almeida Souza; Telles, Evelise Oliveira; Balian, Simone de Carvalho.
This study aimed to analyze the importance of fish as food in the context of food security, highlighting their participation as a route of transmission of the parasite Ascocotyle (Phagicola) long for humans, especially the description of the biology of gray mullet (Mugil liza) of digenetic trematode Ascocotyle (Phagicola) longa and research metacercariae of the parasite in samples of mullet from the biggest wholesale fish market in Latin America, the São Paulo General Warehousing and Centers Company (CEAGESP). Ninety two samples were collected from May 2009 to April 2010 and all of them were infested with metacercariae of Ascocotyle (Phagicola) longa. It is concluded that for the consumption of mullet it becomes mandatory full cooking, being discouraged...
Tipo: Info:eu-repo/semantics/article
Ano: 2015
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/24627

Ascophyllum nodosum (L.) Le Jolis as a bioindicator of radioactivity in the Irish Sea
Provedor de dados: 5
Autores: Bourne, G S; Assinder, D J.
The response of Ascophyllum nodosum to a sudden increase in radioactivity analogous to a nuclear incident is examined in the field. super(137)Cs, super(241)Am and super(239+240)Pu showed net accumulation with exposure time, unlike natural super(228)Th, which was used as a control. Caesium had the highest accumulation rate followed by americium and finally plutonium. Younger plant sections were found to accumulate all the radionuclides significantly faster than older plant sections. Americium and plutonium were accumulated significantly faster in frond tissue than in vesicle tissue. No significant difference could be identified for caesium. These results and their implications for future monitoring surveys and modes of uptake are discussed.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00268/37878/35959.pdf

Aseguramiento de Calidad en el Laboratorio de Biología Molecular: Control de Contaminación Ambiental
Provedor de dados: 38
Autores: Amigo,Quillen; Garbarello,María Florencia; Otarola,Eliana Maricel; Nardi,María Amelia; Frecha,Cecilia Ariana; Furci,Aida; Oyhamburu,José.
La reacción en cadena de la polimerasa (PCR) es la técnica más importante en Biología Molecular. Su principal deficiencia es la susceptibilidad a la contaminación de la muestra, ya sea con productos de amplificación generados en reacciones previas o con material genético proveniente de otras muestras. Se entiende por contaminación a la presencia indeseada de moléculas de ADN o ARN, que pueden actuar como templados en reacciones de amplificación. El objetivo del trabajo fue demostrar la importancia de la implementación de un control de contaminación ambiental periódico monitoreando la integridad del circuito de PCR. Para ello, se hisoparon puntos correspondientes a diferentes áreas de trabajo y se investigó la presencia de amplicones mediante PCR Real Time...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reacción en cadena de la polimerasa; Circuito de PCR; Contaminación por amplicones; Buenas prácticas de laboratorio; Laboratorio de biología molecular.
Ano: 2018
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572018000200005

Asian Elephants as Agricultural Pests: Damages, Economics of Control and Compensation in Sri Lanka
Provedor de dados: 31
Autores: Bandara,   Ranjith; Tisdell,   Clement A.
Despite growing attention to crop and property damage caused by the Asian elephant, uncertainty exists about the magnitude of this problem. This paper explores the nature and magnitude of this problem of Sri Lanka. An economic analysis of individual farmers’ decisions to control elephants is provided. Government policies to assist farmers to cope with the elephant pest problem are assessed. Appropriate compensation schemes for farmers are seen as potentially more effective for conserving elephants in Sri Lanka than legal prohibitions on killing of elephants. Issues raised have wider relevance than merely to Sri Lanka or Asian elephants.
Tipo: Working or Discussion Paper
Palavras-chave: Asian elephant; Elephant pest problem; Sri Lanka; Crop Production/Industries; Environmental Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/48735

Asian soybean rust in Brazil: past, present, and future
Provedor de dados: 86
Autores: Godoy,Cláudia Vieira; Seixas,Claudine Dinali Santos; Soares,Rafael Moreira; Marcelino-Guimarães,Franscismar Correa; Meyer,Maurício Conrado; Costamilan,Leila Maria.
Abstract: Asian soybean rust, caused by the fungus Phakopsora pachyrhizi, is the most severe disease of the crop and can cause yield losses of up to 90%. The disease was first reported in Brazil in 2001. Epidemics of the disease are common in the country, where the fungus can survive year-round. Regulatory measures to reduce the inoculum between seasons and avoid late-season soybean have been adopted to manage the disease. Disease control has relied mainly on chemical control, but a lower sensibility of the fungus to fungicides has been reported in Brazil. Major-resistance genes have been mapped and incorporated into the cultivars. With the reduced efficacy of the fungicides, the adoption of integrated measures to control the disease will be important for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Phakopsora pachyrhizi; Biotechnology; Chemical control; Genetic resistance; Losses; Management.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000500407

Asma felino: fisiopatología, diagnóstico y tratamiento
Provedor de dados: 78
Autores: Gómez,N; Pisano,P; Castillo,V; Fontanals,A.
El asma felino es una patología bronquial crónica de alta incidencia, con características fisiopatológicas similares al asma alérgico de las personas, que se caracteriza por una respuesta inmune con predominio de Linfocitos T helper 2 frente a alérgenos e irritantes ambientales. El signo clínico característico es la tos, y pueden presentarse eventuales episodios de disnea espiratoria. El diagnóstico se basa en los signos clínicos, descartando otras posibles causas de tos y disnea, como parásitos pulmonares, bronconeumonía, neoplasias e insuficiencia cardíaca. Los métodos complementarios colaboran en el diagnóstico diferencial, principalmente las radiografías de tórax que muestran un predominio del patrón bronquial, aunque pueden encontrarse otras...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asma felino; Bronquial; Inmunomediado; Tos.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-34982012000200007

Asociación de cepas fijadoras de nitrógeno de vida libre, con recursos genéticos de pastos para zonas áridas.
Provedor de dados: 32
Autores: Plascencia Jiménez, Raúl.
Para evaluar microorganismos de la rizosfera de Bouteloua curtipendula (Michx.) Torr., se recolectó suelo de cinco localidades 1) Salinas, San Luis Potosí 2) Ejido, Jacalón, Salinas, San Luis Potosí; 3) Calera, Zacatecas; 4) Santa María del Oro, Durango y 5) Crucero La Zarca, Durango. La población de actinomicetos, bacterias y hongos, se estimó con diluciones seriadas (10-1 a 10-10). Los actinomicetos (AS), bacterias (BS) y hongos (HS) se estimaron con diluciones 10-3 a 10-5; 10-5 a 10-7; 10-2 a 10-4, respectivamente, con cinco repeticiones. Las siembras en placa se incubaron a 30 °C. Las unidades formadoras de colonias de bacterias (ufc) se cuantificaron a 24, 48 y 72 h; mientras que, para actinomicetos y hongos, las ufc se cuantificaron a 7, 8 y 9 d. En...
Palavras-chave: Bouteloua; Fijación de nitrógeno; Forraje; Inoculación; Nitrogen fixation; Forage; Inoculation; Ganadería; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/2139

Asociación Médica Argentina: Control de calidad
Provedor de dados: 38
Autores: Bertolasi,Carlos A.
Tipo: Info:eu-repo/semantics/other
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572007000100016

Asparaginase II-GFP fusion as a tool for studying the secretion of the enzyme under nitrogen starvation
Provedor de dados: 58
Autores: Sotero-Martins,Adriana; Bon,Elba Pinto da Silva; Carvajal,Elvira.
Production of asparaginase II of Saccharomyces cerevisiae is regulated by nitrogen and can be used as a model system for studying other secreted proteins in yeast. Green fluorescent protein (GFP) from Aequorea victoria was fused to the carboxy-terminus of the enzyme by genomic integration to the locus ASP3 of S. cerevisiae. We determined asparaginase II activity, mRNA ASP3, mRNA ASP3-GFP and GFP fluorescence. Nitrogen starvation in cells carrying the chimera ASP3-GFP caused an increase in fluorescence and in the expression of ASP3. We have shown that cells producing the chimera Asp3-GFPp displayed the same response to nitrogen starvation as control cells. We demonstrated that Asp3-GFPp can be used for studying asparaginase II secretion under nitrogen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asparaginase II; Nitrogen regulation; Saccharomyces cerevisiae; Genomic integration; Green fluorescent protein.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000400017

Aspectos a considerar para disminuir los conflictos originados por los daños de la cotorra (Myiopsitta monachus) en cultivos agrícolas
Provedor de dados: 68
Autores: Canavelli,Sonia B; Aramburú,Rosana; Zaccagnini,María Elena.
La Cotorra (Myiopsitta monachus) está considerada entre las principales especies de aves que causan daños en cultivos agrícolas en Argentina. Históricamente, se ha favorecido el control letal como método más efectivo para disminuir los daños. No obstante, existen cada vez más cuestionamientos a esta práctica. En este trabajo se resumen los problemas que involucran a la Cotorra y las actividades agrícolas, incluyendo características de los daños y aspectos ecológicos y humanos que favorecerían los conflictos originados por los daños en los cultivos. Además, se presenta un compendio de las alternativas de manejo actualmente disponibles para disminuir los daños. Si bien existen características ecológicas de las cotorras que favorecerían los daños en...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conflicto; Cotorra; Daños en cultivos; Manejo.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072012000100009

Aspectos bioecológicos do coró-das-hortaliças Aegopsis bolboceridus (Thomson) (Coleoptera: Melolonthidae) no cerrado do Brasil Central.
Provedor de dados: 14
Autores: OLIVEIRA, C. M. de.
ABSTRACT: Insects commonly well-known as white grubs are the larval phase of beetles that belong to the Melolonthidae (Coleoptera). This family contains an expressive number of insect species that have different bioecological functions in the agroecosystems in the adult and immature phases. In four of five trophic levels, they are primary and secondary consumers, secondary producers and decomposers. In Brazil there are registred about 1008 species of Melolonthidae whose larvae live in the soil. Some of them are considered important pests; normally the larval phase feed the crop roots causing damages. The symptoms occur in patches with smaller plants, yellow leaves, and drastic reduction in the plant population. The occurence of those insects in the...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Coró; Pests of plants.; Entomologia; Hortaliça; Inseto; Praga de Planta.; Insecta; Entomology; Vegetables.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569999

Aspectos biológicos da lagarta-falsa-medideira e sua criação em laboratório com dieta artificial.
Provedor de dados: 14
Autores: BOTELHO, A. B. R. Z.; SILVA, I. F. da; AVILA, C. J.
bitstream/item/208254/1/36927.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Lagarta falsa-medideira; Entomologia; Criação; Método de Criação; Controle Biológico; Chrysodeixis; Biological control; Entomology.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118272

Aspectos biológicos da traça do tomateiro e seu controle.
Provedor de dados: 14
Autores: HAJI, F. N. P.
A traça do tomateiro, Scrobipalpula absoluta (Meyrick) (Lepidoptera, Gelechiidae), foi constatada no final de 1981 em áreas irrigadas do Trópico Semi-Árido brasileiro, no vale do Salitre, em Juazeiro, BA. Rapidamente, em poucos meses, disseminou-se nas regiões circunvizinhas de Juazeiro, BA, Petrolina e Santa Maria da Boa Vista, PE.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Traça do tomateiro; Controle; Pest; Control; Tomato.; Tomate; Lycopersicon Esculentum; Praga; Scrobipalpula Absoluta.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132226

Aspectos biológicos, danos e estratégias de controle da mosca branca.
Provedor de dados: 14
Autores: HAJI, F. N. P.; MATTOS, M. A. de A.; ALENCAR, J. A. de; BARBOSA, F. R.; MOREIRA, A. N.
Origem e distribuição geográfica; Classificação; Descrição morfológica e aspectos biológicos; Estratégias de controle.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Controle; Classificação; White flies; Control; Damage; Insect.; Entomologia; Inseto; Bemisia Tabaci; Dano; Mosca Branca.; Entomology; Classification.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134211

Aspectos biológicos de Chrysoperla externa visando ao controle biológico da mosca-branca-do-cajueiro.
Provedor de dados: 14
Autores: MONTEIRO, N. V.; SARAIVA, W. V. A.; DIAS, N. da S.; MACIEL, G. P. DE S.; VASCONCELOS, J. F.; DUARTE, P. M.; MELO, J. W. DA S.; RODRIGUES, S. M. M.
Uma alternativa ao uso de produtos químicos para o controle de artrópodes fitófagos em ambientes agrícolas é a utilização de agentes de controle biológico. O objetivo deste estudo foi avaliar o desenvolvimento de Chrysoperla externa (Hagen, 1861) (Neuroptera, Chrysopidae) alimentado com ovos, ninfas e adultos da mosca-branca-do-cajueiro, Aleurodicus cocois (Curtis, 1846) (Hemiptera: Aleyrodidae) e ovos da traça-da-farinha, Anagasta kuehniella (Zeller, 1879) (Lepidoptera: Pyralidae). Diariamente, larvas recémeclodidas de C. externa foram alimentadas ad libitum com as presas fornecidas
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Crisopídeo; Mosca-branca-do-cajueiro; Green lacewing; Giant whitefly; Aleurodicus Cocois; Anagasta Kuehniella; Controle Biológico; Chrysoperla externa; Biological control.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1130075

Aspectos biológicos do parasitóide Chelonus insularis (Cresson) (Hymenoptera, Braconidae) criados em ovos de Spodoptera frugiperda (Smith) (Lepidoptera, Noctuidae)
Provedor de dados: 104
Autores: Rezende,Maria A.A; Cruz,Ivan; Lucia,Terezinha M.C. Della.
Biological aspects of Chelonus insularis (Cresson, 1865) an egg-larval parasitoid reared on Spodoptera frugiperda (Smith, 1797) eggs Chelonus insularis (Cresson. 1865) has been cited in the international literature as a promissing biological control agent against the fall armyworm, Spodoptera frugiperda (Smith, 1797). Its field occurrence in Sete Lagoas, Minas Gerais (Brasil) has been increasing in the last years. For these reasons this experiment was conducted in the laboratory, at the National Corn and Sorghum Research Center, of EMBRAPA, under temperature of 25ºC. RH of 73% and photophase of 12 hours. Ten couples of the parasitoid were individually placed in a glass jar (5 liters capacity). They were fed on a 10% sugar solution. Each couple received one...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Braconidae; Chelonus insularis; Noctuidae; Spodoptera frugiperda; Biological control.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000400007

Aspectos biológicos e etológicos de Chrysoperla externa Hagen, 1861 (Neuroptera: Chrysopidae).
Provedor de dados: 14
Autores: ALMEIDA, R. P. de.
Os aspectos biológicos e etológicos são importantes parâmetros de medição da qualidade de inimigos naturais, na pesquisa ou criação de insetos para uso em controle biológico aplicado. Chrysoperla externa tem sido considerado um importante predador polífago, de hábito canibal, regulador de um grande número de insetos com status de praga da cultura do algodoeiro, entre outras. Este trabalho foi conduzido no laboratório de Entomologia da Embrapa Algodão, Campina Grande, PB, com o objetivo de avaliar algumas características biológicas e comportamentais de C. externa, criados em grupo de três larvas. Os insetos foram alimentados ad libitum com ovos de Ephestia (=Anagasta) kuehniella durante toda pesquisa. Foram avaliadas as fases larvais e larval total, os...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Algodão; Inseto Para Controle Biológico; Inimigo Natural; Cotton; Biological control agents; Lacewings; Insect biology; Intraspecific competition.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131758

Aspectos biologicos e manejo integrado de Sternechus subsignatus na cultura da soja.
Provedor de dados: 14
Autores: HOFFMANN-CAMPO, C. B.; SILVA, M. T. B. da; OLIVEIRA, L. J.
Aspectos biologicos e comportamentais; Distribuicao estacional; Danos; Manejo integrado; Rotacao de culturas; Controle na cultura-armadilha; Controle mecanico; Controle quimico; Epoca de semeadura; Preparo do solo.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Parana; Soybean; Insect; Integrated control; Controle Integrado; Inseto; Soja; Sternechus Subsignatus; Insecta; Brazil.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/461633

Aspectos biológicos y conductuales del estadio infectante de Caligus rogercresseyi Boxhall &amp; Bravo 2000 (Copepoda: Caligidae), en peces nativos y de cultivo de Chile
Provedor de dados: 20
Autores: Farias Aqueveque, D.R.
El impacto nocivo producido por Caligus rogercresseyi en los centros de cultivo de salmónidos en el sur de Chile ha ido en aumento, por lo que es necesario tener un mejor conocimiento de la especie para poder combatirla haciendo énfasis en la etapa infectante de ésta, el estadío copepodito. Este estudio aporta conocimientos biológicos y conductuales de éste estadío frente al estímulo de tres especies de hospederos; Salmo salar, especie de cultivo, y Eleginops maclovinus e Hypsoblennius sordidus, ambas especies nativas. Se realizaron tres experimentos, dos de ellos basados en los estímulos atractantes emanados del pez hospedero, controlados mediante la formación del filamento frontal de adhesión y respuestas conductuales frente a este estímulo mediante un...
Tipo: Theses and Dissertations
Palavras-chave: Fish culture; Ectoparasites; Fish diseases.
Ano: 2005
URL: http://hdl.handle.net/1834/4900

Aspectos biométricos de frutos e sementes, grau de umidade e superação de dormência de jatobá - DOI: 10.4025/actasciagron.v32i2.3681
Provedor de dados: 1
Autores: Andrade, Leonaldo Alves de; Universidade Federal da Paraíba; Bruno, Riselane de Lucena Alcântara; Universidade Federal da Paraíba; Oliveira, Lamartine Soares Bezerra de; Universidade Federal da Paraíba; Silva, Hipólito Tadeu Ferreira da; Centro Federal de Educação Tecnológica de Rio Verde.
Este trabalho objetivou caracterizar biometricamente sementes e frutos de Hymenaea courbaril L. e determinar o grau de umidade, bem como avaliar diferentes tratamentos de superação de dormência. Foram determinados a biometria, a massa de frutos e sementes e o número de sementes por fruto. As sementes foram submetidas aos seguintes cortes: 1-testemunha, sem escarificação ou corte; 2-escarificação em três faces; 3-corte ao meio e 4-corte em quatro partes. Avaliou-se também o percentual de emergência, o IVE, o comprimento da parte aérea e da raiz de plântulas. Para isso, as sementes foram submetidas à superação de dormência, com e sem embebição em água, pelos seguintes tratamentos: I-escarificação do lado oposto ao hilo; II-escarificação em uma lateral;...
Palavras-chave: 5.02.01.04-2 Hymenaea courbaril; Espécie florestal; Emergência de plântulas Sementes Florestais Hymenaea courbaril; Forestry species; Seedling emergence.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3681

Aspectos da cultura do feijoeiro no Estado do Pará.
Provedor de dados: 14
Autores: OLIVEIRA, A. F. F. de; NASCIMENTO JUNIOR, J. de D. B.
bitstream/item/63282/1/Oriental-Doc70.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivo; Controle de doença; Monte Alegre; Pará; Brasil; Blights.; Adubação; Feijão; Mela; Phaseolus Vulgaris; Produtividade; Sistema de Produção.; Amazonia; Disease control; Fertilizer application; Kidney beans; Yields.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382688

Aspectos da pulverização de fungicidas em soja.
Provedor de dados: 14
Autores: ALMEIDA, A. M. R. de; ROESSING, A. C.; COSTA, N. P. da.
Resultados alcancados no periodo 1973/1981; Calculo da economicidade; Discussao e conclusoes; Intensidade de infeccao e desfolha; Deficiencia de cobertura; Efeito sistemico; Efeito sobre fungos entomopatogenicos.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Uso de fungicida; Brasil; Parana; Soybean; Fungicide; Use; Disease; Fungus.; Controle Químico; Doença; Fungo; Soja.; Brazil; Chemical control.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445187

Aspectos do controle de ervas daninhas na cultura do algodoeiro no nordeste brasileiro.
Provedor de dados: 14
Autores: BELTRÃO, N. E. de M.
Pesquisas desenvolvidas visando o conhecimento e controle de ervas; Situacao atual dos sistemas de controle de ervas; Pesquisas realizadas e em andamento sobre o controle de ervas; Pesquisas realizadas e em andamento sobre o controle de ervas, desenvolvidas pelo CNP-Algodao; Pesquisas programadas pelo CNP-Algodao.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Controle; Brasil; Nordeste; Weed; Control; Northeast.; Algodão; Erva Daninha; Gossypium Hirsutum.; Brazil; Cotton.
Ano: 1977
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262413

Aspectos ecológicos de viveiro de seringueira relacionados com pulverizações contra o "mal-das-folhas" (Microcyclus ulei).
Provedor de dados: 14
Autores: CID, L. P. B.; TRINDADE, D. R.; CONCEICAO, H. E. O.
Para o controle do mal-das-folhas, recomenda-se, preliminarmente, para as condições de Manaus e áreas similares, uso de fungicidas, aplicados alternadamente a cada dez dias, durante a época de maior pluviosidade, e, a cada 15 dias, durante o período de estiagem. Recomenda-se, também, o uso de espalhante adesivo. Foi feito estudo sobre o efeito ecológico da aplicação em nível de veveiro.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Hevea spp; Doença da folha; Mal-das-folhas; Brasil; Amazonas; Rubber tree; Leaf fungal diseases; South American leaf blight; SALB; Nursery.; Controle Químico; Fungo; Fungicida; Microcyclus Ulei; Poluição; Seringueira; Viveiro.; Fungicides; Chemical control; Pollution.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665056

Aspectos fisiológicos do crescimento da alfafa (Medicago sativa L. cv. Crioula) após pulverização com ácido giberélico durante o período de seca invernal - DOI: 10.4025/actascianimsci.v25i1.2148
Provedor de dados: 2
Autores: Carrer, Célia Regina Orlandelli; USP; Castro, Paulo Roberto de Camargo e; Escola Superior de Agricultura-USP; Gomide, Catarina Abdalla; USP; Silva, Neli Mariza Azevedo; USP; Consentino, Renata Maria; Camargo, Juliana Zenha de; USP; Lima, César Gonçalves de; USP.
Os objetivos deste trabalho foram verificar alterações no crescimento e na produção da alfafa (Medicago sativa L. cv. Crioula), pulverizada com ácido giberélico (GA3) em época de crescimento reduzido (abril a setembro), em condições de campo. O experimento consistiu de três tratamentos (0, 5 e 10mg/kg GA3), com sete repetições, sendo que foram realizados seis cortes com intervalos de 28 dias. Os resultados obtidos indicaram que não houve diferença estatística (p &lt; 0,05) quanto aos parâmetros estudados. A alfafa cultivar Crioula não respondeu às dosagens aplicadas de GA3 nas condições experimentais.
Palavras-chave: 5.04.00.00-2 Zootecnia crescimento; Giberelina; Produção forrageira 5.04.00.00-2 Zootecnia.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2148

Aspectos gerais da validação de métodos químicos, biológicos e computacionais na gestão de qualidade de resultados de pesquisa.
Provedor de dados: 14
Autores: CASTRO, V. L. S. S. de.
bitstream/item/12261/1/documentos_75.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Sistema da qualidade; Métodos químicos; Métodos biológicos; Ensaios; Validação; Laboratório; Análise de laboratório; Qualidade; Laboratory techniques; Assays; Quality control.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/83076

Aspects morphologiques et dynamiques de constructions de l'Annelide polychete Sabellaria alveolata (Linne).
Provedor de dados: 5
Autores: Gruet, Yves.
The study is illustrated by photographs, consideration being given to the stages in the establishment of colonies on shells and pebbles. Stages of implantation and the types of construction thereby formed are described, and the process of growth in height examined. Implantation of other individuals, hydrodynamics, tube density, temperature and age or average sizes of the population are thought to influence this growth. The surface area occupied by the constructions may be extended by colonization of pebby or shelly areas or by transportation of parts broken away. Destruction and death of the constructions may be extended by colonization of pebby or shelly areas the constructions is described. It was found that the reefs underwent a particular mode of...
Tipo: Text
Palavras-chave: Colonization; Morphological and dynamic aspects; Sabellaria alveolata; Constructions.
Ano: 1972
URL: http://archimer.ifremer.fr/doc/1972/publication-2061.pdf

Aspects of steaming the soil to reduce weed seedling emergence
Provedor de dados: 21
Autores: Bo Melander, Scientist; Torben Heisel, Scientist; Martin Heide Jørgensen, Scientist.
Aspects of using steam for intra-row weed control in organic row crops are presented.
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2002
URL: http://orgprints.org/1547/1/Abstract_NL1.pdf

Aspects on gametogenesis, fertilization and embryogenesis of two deep-sea polychaetes from Eastern Atlantic cold seeps
Provedor de dados: 5
Autores: Gaudron, S. M.; Hourdez, S.; Olu, Karine.
We investigated two gonochoristic species of annelid polychaetes (one siboglinid and one polynoid) from cold seeps that ranged from 525 m to 3300 m in depth (Guiness, Worm Hole and Regab pockmarks) on the Gabon and Congo continental margins (Gulf of Guinea). Different aspects of gametogenesis (oocyte diameter, presence of ovisac, spermatozoa shape, and fecundity), fertilization (in vitro fertilization experiments: IVF) and embryogenesis (cleavage rate) were studied. The sampled siboglinid was a new species of Lamellibrachia and the second population of this genus in the Eastern Atlantic. Mean oocyte diameter was about 100 µm and fully-grown primary oocytes were stored in an ovisac, as in other studied siboglinids. The presence of a single spermatozoon was...
Tipo: Text
Palavras-chave: Branchipolynoe; Cold seeps; Dispersal; Lamellibrachia; Polynoid; Reproduction; Siboglinid.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00405/51644/52192.pdf

ASPETTI COMPORTAMENTALI, PRESTAZIONI PRODUTTIVE E QUALITÀ DELL'UOVO IN GALLINE ALLEVATE CON IL METODO BIOLOGICO
Provedor de dados: 21
Autores: CASTELLINI, Prof C; MUGNAI, Dr C; DAL BOSCO, dr A; PALOZZO, dr M; SCUOTA, dr S.
The aim of this trial was to study the effect of organic housing system on the behaviour, productive performance and the qualitative characteristics of eggs. The experiment was conduced directly in the field on Hy-Line laying hens from the beginning of the productive period (17 weeks of age) till the end of productive career. The animals were divided in two homogeneous groups and assigned to the following housing system: control, conventional cage (18 bird/m2) and organic 6 birds m2 in a covered straw-bedded house with access to a paddock (4 m2/bird). A standard feed with the same nutritive characteristics was given ad libitum to the chickens. For the organic, more  than 80% of the ingredients (maize, wheat and whole soybean) were organically grown, as...
Tipo: Journal paper
Palavras-chave: Poultry; Health and welfare.
Ano: 2004
URL: http://orgprints.org/9326/1/p41%2D44%2DRicerca.pdf

Assay and physicochemical characterization of the antiparasitic albendazole
Provedor de dados: 60
Autores: Cavalcanti,Noely Camila Tavares; Sousa,Giovana Damasceno; Tabosa,Maria Alice Maciel; Soares Sobrinho,José Lamartine; Leal,Leila Bastos; Santana,Davi Pereira de.
The aim of this study was to characterize three batches of albendazole by pharmacopeial and complementary analytical techniques in order to establish more detailed specifications for the development of pharmaceutical forms. The ABZ01, ABZ02, and ABZ03 batches had melting points of 208 ºC, 208 ºC, and 209 ºC, respectively. X-ray diffraction revealed that all three batches showed crystalline behavior and the absence of polymorphism. Scanning electron microscopy showed that all the samples were crystals of different sizes with a strong tendency to aggregate. The samples were insoluble in water (5.07, 4.27, and 4.52 mg mL-1, respectively) and very slightly soluble in 0.1 M HCl (55.10, 56.90, and 61.70 mg mL-1, respectively) and additionally showed purities...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Albendazole/characterization; Antiparasitics/quality control.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000200012

ASSEMBLY OF A REMOTELY PILOTED AIRCRAFT OF LOW COST APPLIED TO AGRICULTURE
Provedor de dados: 70
Autores: Cunha,João P. A. R. Da; Sirqueira Neto,Matheus A.
ABSTRACT: The remotely piloted aircraft (RPA) have great applicability in agriculture. Although it is a technology that has been developed for many years, in the field of agriculture it passed unnoticed for a long time. The high cost of acquisition is still a limiting factor for small and medium-sized farmers. In this way, this study had as objective to develop a low cost RPA for agriculture application. In the present study, the development and the assembly of an RPA prototype of a quadcopter type is presented, consisting of four engines and of vertical propulsion, capable of moving without human intervention, that is, autonomous flight, applied to agriculture and low cost investment. In it was boarded a data control and processing system collected from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Precision agriculture; Quadcopters; RPA.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000601268

Assesing Bemisia tabaci (Genn.) biotype B resistance in soybean genotypes: Antixenosis and antibiosis
Provedor de dados: 117
Autores: Gonçalves Franco da Silva,José Paulo; Lopes Baldin,Edson Luiz; Santana de Souza,Efrain; Lourenção,André Luiz.
Since it was first reported in Brazil in the 1990s, the B biotype of silverleaf whitefly (Bemisia tabaci Genn., Hemiptera: Aleyrodidae) has been recognized as an important pest in soybeans (Glycine max L.), reducing the productivity of this legume species in some areas of the country. As an alternative to chemical control, the use of resistant genotypes represents an important tool for integrated pest management (IPM). This study evaluated the performance of 10 soybean genotypes prior to whitefly infestation, by testing attractiveness and preference for oviposition in the greenhouse and antibiosis in the laboratory. In a multiple-choice test, 'IAC-17' was the least attractive to insects. In a no-choice test, 'IAC-17' was the least attractive for egg...
Tipo: Journal article
Palavras-chave: Glycine max; Silverleaf whitefly; Host plant resistance; Attractiveness; Non-preference; Trichome.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400009

Assesment of the Genotoxic Effect of the Diazinon on Root Cells of Allium cepa (L.)
Provedor de dados: 52
Autores: Pandir,Dilek.
ABSTRACT Organophosphorous pesticides (OPs) posses a great potential of acute toxicity for exposed animals and men. To evaluate the toxic potential of the organophosphate diazinon on root meristematic cells of Allium cepa L., was created two groups: In group 1 (control group), was not given any chemical. In group 2 (diazinon-treatment group), different doses (10, 40, 80 and 160 ppm) and times periods (24, 48 and 72 h) were administered. After exposure, cell death, effective concentration (EC50), mitotic index, cellular /chromosome aberrations, DNA damage by comet assay and RAPD-PCR were assessed at exposure times. EC50 value of diazinon was detected approximately 80 ppm. Hyperchromasia, later segragation, micronucleus, pulverised nucleus, nuclear...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diazinon; Allium test; DNA damage; Genotoxicty; RAPD-PCR.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100406

Assessing and screening for T-cell epitopes from Mycobacterium tuberculosis RD2 proteins for the diagnosis of active tuberculosis
Provedor de dados: 55
Autores: Chen,Jiazhen; Ruan,Qiaoling; Shen,Yaojie; Wang,Sen; Shao,Lingyun; Zhang,Wenhong.
ABSTRACT The Region of D eletion 2 (RD2) of Mycobacterium tuberculosis encodes reserved antigens that contribute to bacterial virulence. Among these antigens, Rv1983, Rv1986, Rv1987, and Rv1989c have been shown to be immunodominant in infected cattle; however, their diagnostic utility has not been evaluated in humans.In this study, we screened 87 overlapping synthetic peptides encoded by five RD2 proteins for diagnosing tuberculosis epitopes in 50 active tuberculosis (TB) cases, 31 non-tuberculosis patients and 36 healthy individuals. A pool of promising epitopes was then assessed for their diagnostic value in 233 suspected TB patients using a whole blood IFN-γ release assay.Only 10 peptides were recognized by more than 10% of active tuberculosis patients....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mycobacterium tuberculosis; T-cell epitope; Diagnostic antigen.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000600462

Assessing aquaculture sustainability: a comparative methodology
Provedor de dados: 5
Autores: Lazard, Jerome; Rey-valette, Helene; Aubin, Joel; Mathe, Syndhia; Chia, Eduardo; Caruso, Domenico; Mikolasek, Olivier; Blancheton, Jean Paul; Legendre, Marc; Rene, Francois; Levang, Patrice; Slembrouck, Jacques; Morissens, Pierre; Clements, Olivier.
Little work dealing with the evaluation of aquaculture system sustainability has so far been undertaken on a global and comparative basis. Moreover, such work is mostly based on very unbalanced approaches in terms of the dimensions of sustainable development that are taken into account. The approach adopted in this article is designed to encompass all the dimensions of sustainability including the institutional one (governance). The taking into account of this latter, in particular, together with the role played by aquaculture in sustainability at the territorial level gives the approach its original and innovative nature. The process of establishing the checklist of sustainability indicators in aquaculture relies on a hierarchical nesting approach which...
Tipo: Text
Palavras-chave: Aquaculture; Indicators; Co-construction; Sustainability.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00245/35598/34151.pdf

Assessing China’s Energy Conservation and Carbon Intensity: How Will the Future Differ from the Past?
Provedor de dados: 31
Autores: Zhang,   ZhongXiang.
As an important step towards building a “harmonious society” through “scientific development”, China has incorporated for the first time in its five-year economic plan an energy input indicator as a constraint. While it achieved a quadrupling of its GDP while cutting its energy intensity by about three quarters between 1980 and 2000, China has had limited success in achieving its own 20% energy-saving goal set for 2010 to date. Despite this great challenge at home, just prior to the Copenhagen climate summit, China pledged to cut its carbon intensity by 40-45% by 2020 relative its 2005 levels to help to reach an international climate change agreement at Copenhagen or beyond. This raises the issue of whether such a pledge is ambitious or just represents...
Tipo: Working or Discussion Paper
Palavras-chave: Energy Saving; Renewable Energy; Carbon Intensity; Post-Copenhagen Climate Negotiations; Climate Commitments; China; Environmental Economics and Policy; Q42; Q43; Q48; Q52; Q53; Q54; Q58.
Ano: 2010
URL: http://purl.umn.edu/92837

Assessing Consumers' Valuation of Cosmetically Damaged Apples Using a Mixed Probit Model
Provedor de dados: 31
Autores: Yue,   Chengyan; Jensen,   Helen H.; Mueller,   Daren S.; Nonnecke,   Gail R.; Gleason,   Mark L.
Replaced with revised version of paper 01/18/06.
Tipo: Working or Discussion Paper
Palavras-chave: Apples; Sooty blotch and flyspeck; Organic; Cosmetic damage; Willingness to buy; Mixed probit model; Food Consumption/Nutrition/Food Safety.
Ano: 2005
URL: http://purl.umn.edu/18483

Assessing efficacy of jojoba crushed seed and oil cake on growth vigor, nutritional status of Superior grapevine cuttings and controlling the root-knot nematode
Provedor de dados: 111
Autores: Hafez, Omaima M.
The increasing demand for environmental protection and sustainable food production requires increasing towards the use of natural and non-toxic materials for agriculture. Thus, the target of the current research was assessing the efficacy of jojoba crushed seed, oil cake (seed after compressing) and bio-nematicide (Nema-Foo®) on growth and nutritional status of Superior grapevine cuttings as well as controlling Meloidogyne incognita in the Pomology greenhouse at NRC, Dokki, Giza, under Egyptian conditions during two successive seasons (2015-2016). Eleven treatments were done on Superior grapevine cuttings (one year old) as jojoba crushed seed and jojoba oil cake (3 and 6 g, for each) with or without infection, Nema-Foo® (5 %) with infection were added, in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: National Research Centre Superior grapevine cutting; Vegetative growth; Nutritional status; Controlling root-knot nematode.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4407

Assessing farmer field school as a sustainable agricultural methodology for farmers in Trinidad and Tobago
Provedor de dados: 31
Autores: Ramroop,   Deanne V.; Ragbir,   Sarojini.
Bridgetown, Barbados 6th-10th July, 2009
Tipo: Presentation
Palavras-chave: Ecological Crop Management; Farmer Field Schools; Sustainable Agricultural Methodology; Integrated Pest Management; Agribusiness; Teaching/Communication/Extension/Profession; Q16.
Ano: 2010
URL: http://purl.umn.edu/122883

Assessing national achievement levels in education
Provedor de dados: 121
Autores: Vincent Greaney; Thomas Kellaghan; Greaney, Vincent.
Tipo: Text
Palavras-chave: CONTROL ESCOLAR.
Ano: 2008
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=118392&tab=opac&oai:flacso.org.ec:118392

Assessing new strategies for TB diagnosis in low- and middle-income countries
Provedor de dados: 55
Autores: Kritski,Afrânio; Fujiwara,Paula I.; Vieira,Maria Armanda; Netto,Antonio Ruffino; Oliveira,Martha Maria; Huf,Gisele; Squire,S. Bertel.
In this manuscript, we report the current situation of tuberculosis globally and in Brazil, the need for new strategies toward tuberculosis control, focusing on new diagnostic technologies. Critical comments are given on the state of the art regarding the evaluation of new health technologies, degree of scientific evidence needed, evaluation of clinical impact, cost-effectiveness of incorporation into the health system and the social impact.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuberculosis; Diagnostics; Impact; Evidence; Policy; Innovation; Regulatory agency.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000200015

Assessing Risk Factors in the Organic Control System: Evidence from Inspection Data in Italy
Provedor de dados: 21
Autores: Zanoli, Raffaele; Gambelli, Danilo; Solfanelli, Francesco.
Certification is an essential feature in organic farming, and it is based on inspections to verify compliance with respect to European Council Regulation—EC Reg. No 834/2007. A risk based approach to noncompliance that alerts the control bodies to activate planning inspections would contribute to a more efficient and cost-effective certification system. An analysis of factors that can affect the probability of noncompliance in organic farming has thus been developed. This article examines the application of zero-inflated count data models to farmlevel panel data from inspection results and sanctions obtained from the Ethical and Environmental Certification Institute, one of the main control bodies in Italy. We tested many a priori hypotheses related to the...
Tipo: Journal paper
Palavras-chave: Food security; Food quality and human health Values; Standards and certification.
Ano: 2014
URL: http://orgprints.org/27760/1/Risk%20Analysis%20EV%202014.pdf

Assessing spatial and temporal variability of phytoplankton communities' composition in the Iroise Sea ecosystem (Brittany, France): A 3D modeling approach. Part 1: Biophysical control over plankton functional types succession and distribution
Provedor de dados: 5
Autores: Cadier, Mathilde; Gorgues, Thomas; Sourisseau, Marc; Edwards, Christopher A.; Aumont, Olivier; Marie, Louis; Memery, Laurent.
Understanding the dynamic interplay between physical, biogeochemical and biological processes represents a key challenge in oceanography, particularly in shelf seas where complex hydrodynamics are likely to drive nutrient distribution and niche partitioning of phytoplankton communities. The Iroise Sea includes a tidal front called the ‘Ushant Front’ that undergoes a pronounced seasonal cycle, with a marked signal during the summer. These characteristics as well as relatively good observational sampling make it a region of choice to study processes impacting phytoplankton dynamics. This innovative modeling study employs a phytoplankton-diversity model, coupled to a regional circulation model to explore mechanisms that alter biogeography of phytoplankton in...
Tipo: Text
Palavras-chave: Iroise Sea; Tidal mixing front; Biogeochemical modeling; Phytoplankton; Functional groups; Seasonal cycle.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00352/46367/45986.pdf

Assessing stakeholder's experience and sensitivity on key issues for the economic growth of organic aquaculture production
Provedor de dados: 21
Autores: Lembo, Giuseppe; Jokumsen, Alfred; Spedicato, Maria Teresa; Facchini, Maria Teresa; Bitetto, Isabella.
Participatory management is widely recognised as a working method of paramount importance, based on the principles of knowledge sharing, accountability and legitimacy. Hence, it is broadly considered suitable for addressing issues related to the sustainable development of the seafood industry, and specifically, of the aquaculture system. A survey focused on the current EU regulatory framework was carried out to elicit stakeholders’ preferences, knowledge and experience on key issues for the development of organic aquaculture, supported by science-based regulations. The survey was completed by 65 stakeholders belonging to several categories, and it was supported by the implementation of the Analytic Hierarchy Process method. Stakeholders’ preferences were...
Tipo: Journal paper
Palavras-chave: Consumer issues; Aquaculture; European Union; Regulation.
Ano: 2018
URL: http://orgprints.org/35348/1/JMPO_2018_Organic_aquaculture.pdf

Assessing the Accuracy of High Resolution Digital Surface Models Computed by PhotoScan((R)) and MicMac((R)) in Sub-Optimal Survey Conditions
Provedor de dados: 5
Autores: Jaud, Marion; Passot, Sophie; Le Bivic, Rejanne; Delacourt, Christophe; Grandjean, Philippe; Le Dantec, Nicolas.
For monitoring purposes and in the context of geomorphological research, Unmanned Aerial Vehicles (UAV) appear to be a promising solution to provide multi-temporal Digital Surface Models (DSMs) and orthophotographs. There are a variety of photogrammetric software tools available for UAV-based data. The objective of this study is to investigate the level of accuracy that can be achieved using two of these software tools: Agisoft PhotoScan((R)) Pro and an open-source alternative, IGN((c)) MicMac((R)), in sub-optimal survey conditions (rugged terrain, with a large variety of morphological features covering a range of roughness sizes, poor GPS reception). A set of UAV images has been taken by a hexacopter drone above the Riviere des Remparts, a river on...
Tipo: Text
Palavras-chave: Image processing; SfM photogrammetry software; Digital Surface Model; UAV; Orthophoto; Accuracy assessment.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00639/75081/75581.pdf

Assessing the diversity of the virulence potential ofEscherichia coli isolated from bacteremia in São Paulo, Brazil
Provedor de dados: 56
Autores: Santos,A.C.M.; Zidko,A.C.M.; Pignatari,A.C.; Silva,R.M.
Most of the knowledge of the virulence determinants of extraintestinal pathogenicEscherichia coli (ExPEC) comes from studies with human strains causing urinary tract infections and neonatal meningitis and animal strains causing avian colibacillosis. In this research, we analyzed the phylogenetic background, the presence of 20 ExPEC virulence factors, and the intrinsic virulence potential of 74 E. coli strains isolated in São Paulo, Brazil, from 74 hospitalized patients (43 males and 31 females) with unknown-source bacteremia. Unlike other places in the world, the bacteremic strains originated equally from phylogroups B2 (35%) and D (30%). A great variability in the profiles of virulence factors was noted in this survey. Nevertheless, 61% of the strains...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteremia; Extraintestinal pathogenic Escherichia coli; Virulence factors; Intrinsic virulence potential; Phylogenetic background.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013001100968

Assessing the epidemiological data of Staphylococcus aureus food poisoning occurred in the State of Rio Grande do Sul, Southern Brazil
Provedor de dados: 58
Autores: Lima,Gustavo Costalunga; Loiko,Márcia Regina; Casarin,Letícia Sopeña; Tondo,Eduardo Cesar.
Staphylococcal food poisoning is one of the most frequent foodborne illnesses worldwide and it is caused by the ingestion of food contaminated with enterotoxins produced by some strains of Staphylococcus (S.) aureus. In the State of Rio Grande do Sul (RS), Southern Brazil, S. aureus has been identified as the second most frequent agent of foodborne illnesses in the last two decades. The aim of the present study was to assess and analyse the epidemiological data of S. aureus food poisoning occurred in the State of RS during the years of 2000 to 2002. The official records of epidemiological investigations carried out by the Sanitary Surveillance Services of the State of RS were analysed. Among foodborne outbreaks for which aetiology was determined, S. aureus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Staphylococcus aureus; Food poisoning; RS State; Brazil.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300014

Assessing the impact of agricultural research on farmer's knowledge about African animal trypanosomosis : An application of the propensity score matching approach
Provedor de dados: 31
Autores: Liebenehm,   Sabine; Affognon,   Hippolyte; Waibel,   Hermann.
Ex-post evaluation of agricultural research is aimed to empirically provide evidence of past investments’ effectiveness. This paper is intended to measure the immediate impact of livestock research activities on cattle farmers’ knowledge about trypanosomosis and its therapeutic and preventive control strategies. According to the quasi-experimental design of the intervention, it is shown that its impact will be adequately estimated by propensity score matching (PSM). Based on data collected according to a knowledge, attitude and practice (KAP) questionnaire in the region of Kénédougou that is common to Mali and Burkina Faso, results indicate a significant gain in farmers’ know-how due to participation in livestock research activities.
Tipo: Conference Paper or Presentation
Palavras-chave: African animal trypanosomosis (AAT); Knowledge; Attitude and practice (KAP); Propensity score matching (PSM); Livestock Production/Industries; Research Methods/ Statistical Methods.
Ano: 2009
URL: http://purl.umn.edu/53277

ASSESSING THE IMPACT OF HIGH-YIELDING VARIETIES OF MAIZE IN RESETTLEMENT AREAS OF ZIMBABWE
Provedor de dados: 31
Autores: Bourdillon,   Michael; Hebinck,   Paul; Hoddinott,   John; Kinsey,   Bill; Marondo,   John; Mudege,   Netsayi; Owens,   Trudy.
This study is part of a larger effort to explore the impact of agricultural research on poverty reduction. It examines the diffusion and impact of hybrid maize in selected resettlement areas of rural Zimbabwe, paying particular attention to varieties made widely available from the mid-1990s onwards. While “Zimbabwe’s Green Revolution” of the early 1980s was characterized by the widespread adoption of hybrid maize varieties and significant increases in yields, the subsequent diffusion of newer varieties occurred more slowly and had a more modest impact. Several factors account for this. Government now plays a much-reduced role and one that increasingly focuses on “better farmers.” Private-sector institutions that have entered the maize sector operate mainly...
Tipo: Working or Discussion Paper
Palavras-chave: Poverty; Agricultural research; Sustainable livelihoods; Vulnerability; Agricultural extension; Social capital; Hybrid maize; Zimbabwe; Crop Production/Industries.
Ano: 2003
URL: http://purl.umn.edu/16407

Assessing the Impact of the National Agricultural Advisory  Services (NAADS) in the Uganda Rural Livelihoods
Provedor de dados: 31
Autores: Benin,   Samuel; Nkonya,   Ephraim M.; Okecho,   Geresom; Pender,   John L.; Nahdy,   Silim; Mugarura,   Samuel; Kato,   Edward; Kayobyo,   Godfrey.
The National Agricultural Advisory Services (NAADS) program of Uganda is an innovative public-private extension service delivery approach, with the goal of increasing market oriented agricultural production by empowering farmers to demand and control agricultural advisory services. Although initial evaluations of NAADS have been quite favourable, these evaluations have been primary qualitative in nature. This study quantifies the initial impacts of NAADS in the districts and sub-counties where the program was operating by 2005. It is based on descriptive analyses of results of a survey of 116 farmer groups and 894 farmers in sixteen districts where the program was operating at the time and four districts where NAADS had not yet begun operating to control...
Tipo: Working or Discussion Paper
Palavras-chave: Impact assessment; Agricultural extension; Uganda; Community/Rural/Urban Development; Teaching/Communication/Extension/Profession.
Ano: 2007
URL: http://purl.umn.edu/42375

Assessing the internal consistency of the CARINA data base in the Pacific sector of the Southern Ocean
Provedor de dados: 5
Autores: Sabine, C. L.; Hoppema, M.; Key, R. M.; Tilbrook, B.; Van Heuven, S.; Lo Monaco, C.; Metzl, N.; Ishii, M.; Murata, A.; Musielewicz, S.
The CARINA project is aimed at gathering and providing secondary quality control checks on carbon and carbon-relevant hydrographic and geochemical data from cruises all across the Atlantic, Arctic and Southern Ocean. In total the project gathered 188 cruises that were not previously available to the public. Of these 188 cruises, 37 are part of the Southern Ocean. Parameters from the Southern Ocean cruises, including total carbon dioxide (TCO2), total alkalinity, oxygen, nitrate, phosphate and silicate, were examined for cruise-to-cruise consistency. pH and chlorofluorocarbons (CFCs) are also part of the data base, but are not discussed here. This paper focuses on the quality control of the Southern Ocean data from the Pacific sector which consisted of 29...
Tipo: Text
Ano: 2009
URL: https://archimer.ifremer.fr/doc/00293/40433/38987.pdf

Assessing the internal consistency of the CARINA data base in the Pacific sector of the Southern Ocean
Provedor de dados: 5
Autores: Sabine, C. L.; Hoppema, M.; Key, R. M.; Tilbrook, B.; Van Heuven, S.; Lo Monaco, C.; Metzl, N.; Ishii, M.; Murata, A.; Musielewicz, S.
The CARINA project is aimed at gathering and providing secondary quality control checks on carbon and carbon-relevant hydrographic and geochemical data from cruises all across the Atlantic, Arctic and Southern Ocean. In total the project gathered 188 cruises that were not previously available to the public. Of these 188 cruises, 37 are part of the Southern Ocean. Parameters from the Southern Ocean cruises, including total carbon dioxide (TCO2), total alkalinity, oxygen, nitrate, phosphate and silicate, were examined for cruise-to-cruise consistency. pH and chlorofluorocarbons (CFCs) are also part of the data base, but are not discussed here. This paper focuses on the quality control of the Southern Ocean data from the Pacific sector which consisted of 29...
Tipo: Text
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00218/32921/31392.pdf

ASSESSING THE POTENTIAL FOR FOOD-BASED STRATEGIES TO REDUCE VITAMIN A AND IRON DEFICIENCIES: A REVIEW OF RECENT EVIDENCE
Provedor de dados: 31
Autores: Ruel,   Marie T.; Levin,   Carol E.
This paper reviews current knowledge and experience with food-based approaches to reduce vitamin A and iron deficiencies. It presents a review of recently published literature, highlights some of the lessons learned, and identifies knowledge gaps and research priorities. The main strategies reviewed are food-based interventions that aim at (1) increasing the production, availability and access to vitamin A and iron-rich foods through the promotion of home production; (2) increasing the intake of vitamin A and iron-rich foods through nutrition education, communication, social marketing and behavior change programs to improve dietary quality among vulnerable groups; and (3) increasing the bioavailability of vitamin A and iron in the diet either through home...
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 2000
URL: http://purl.umn.edu/16433

Assessing the risk from mycotoxins for the organic food chain: results from Organic HACCP-project and other research
Provedor de dados: 21
Autores: Wyss, Gabriela.
Introduction:  Mycotoxins are toxic compounds produced by the secondary metabolism of toxic moulds in the Aspergillus, Penicillium and Fusarium genera occurring in food commodities and foodstuffs. The range and potency of mycotoxins make this group of naturally occurring toxins an ongoing animal health hazard and a constant risk for contamination of the food supply.    Mycotoxicoses are diseases caused by exposure to foods or feeds contaminated with mycotoxins. Mycotoxins exhibit a variety of biological effects in animals, such as liver and kidney toxicity, central nervous system effects or estrogenic effects. There are differences between animals with regard to the susceptibility towards different mycotoxins. Poultry secrete mycotoxins relatively fast...
Tipo: Conference paper, poster, etc.
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/5921/1/Wyss-2005-SAFO-mycotoxins.pdf

Assessing the risk of non-compliance in UK organic agriculture: An econometric analysis
Provedor de dados: 21
Autores: Zanoli, Raffaele; Gambelli, Danilo; Solfanelli, Francesco; Padel, Susanne.
The purpose is to provide an analysis of the risk factors influencing non-compliance in UK organic farming.  The paper uses a formal econometric model of risk analysis to provide empirical evidence on the determinants of non-compliance in organic farming. A panel of data from the archives of the largest control body in the UK for 2007-2009 is used, and specific analyses are performed for two types of non-compliances. A zero inflated count data model is used for the estimation, taking into account the fact that the occurrences of non-compliance are very sparse.  Results show the existence of strong co-dependence of non-compliant behaviours (i.e. the occurrence of major and critical non-compliance increases the probability of occurrence of the minor one;...
Tipo: Journal paper
Palavras-chave: Markets and trade Values; Standards and certification Regulation.
Ano: 2014
URL: http://orgprints.org/26880/13/Zanoli%20et%20al%202014_preprint.pdf

Assessing the sustainability of a stockless arable rotation (OF0318)
Provedor de dados: 21
Autores: Cormack, William.
The majority of organic conversions have been on upland grass-based livestock farms resulting in a shortage of UK-grown cereals and pulses. Across northern Europe, conventional agriculture has developed a specialised structure with many areas having no livestock, or knowledge or facilities to support livestock. Sustainable organic production on these farms has particular challenges for nutrient supply, for the management of weeds, pests and diseases and for economically viability.    This report covers a three and a half year period (four crop harvests) of a longer-term programme of work, which began in 1990. The overall objective was to identify and overcome factors limiting the sustainability of a stockless arable rotation. Specific objectives were to 1)...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions Crop husbandry Farm economics.
Ano: 2005
URL: http://orgprints.org/10778/1/assessing_the_sustainability_of_a_stockless_arable_organic_rotation_of0318.pdf

Assessing varietal resistances to control common wheat bunt under organic cereal production and soft wheat, in particular
Provedor de dados: 21
Autores: FONTAINE, L.; du CHEYRON, P.; MORAND, P.; SKIKERS, S.
Common wheat bunt (caused by the fungus Tilletia caries or Tilletia foetida) is a disease whose incidence is clearly on the rise in organic farming, jeopardising the balance of the French organic cereal sector. Control methods adapted to organic farming must be found, especially since we know that no seed treatment is 100% effective. The use of varietal resistance appears particularly promising for limiting the spread of the disease. Since 2000, an experiment whose purpose is to assess the resistance of soft wheat varieties to Tilletia caries is conducted each year by the French plant institute, ARVALIS. These experiments make it possible to identify the existence of a wide behavioural variability with respect to this pathogen among the different varieties...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds Breeding; Genetics and propagation.
Ano: 2009
URL: http://orgprints.org/15472/1/18%2DFontaine.pdf

Assessment and comparisons of the environmental, economic and social  performances of organic and conventional cattle systems
Provedor de dados: 21
Autores: Pavie, Jérome; Chambaut, H.; Madeline, L.; Experton, Catherine.
The main objective of "CedABio" was to estimate the environmental and socioeconomic benefits  anticipated in the bovine farming systems adopting an organic production mode. Beyond some obvious  advantages, the goal was to measure and ascertain the real contributions of a change to organic  farming for the dairy and beef farms. To lead this assessment, strong and technically accessible  indicators were selected, tested, and then looked for in 144 livestock farms, located in varied contexts to  take into account territorial diversity. Half of the farms were in organic mode. Their results are compared  with the other half producing in conventional mode, situated in the same zones, with similar structures.  The results and the observations performed in this...
Tipo: Journal paper
Palavras-chave: Production systems; Farm economics; Animal husbandry; Social aspects; Environmental aspects.
Ano: 2013
URL: http://orgprints.org/26211/1/Pavie_2013_CIAG_Vol30.pdf

Assessment of a natural, non-antibiotic blend on performance, blood biochemistry, intestinal microflora, and morphology of broilers challenged with Escherichia coli
Provedor de dados: 96
Autores: Manafi,Milad; Hedayati,Mahdi; Khalaji,Saeed; Kamely,Mohammad.
ABSTRACT The effect of a non-antibiotic growth-promoting component composed of natural phytomolecules, direct-fed microbials, glucomannan oligosaccharides, and organic acids on the performance, intestinal morphology and microbiology, plasma biochemistry, enzyme activities, visceral organ weights, and immune response of commercial broilers challenged with Escherichia coli was investigated. Three hundred and sixty one-day old male Ross 308 broiler chicks were randomly divided into basal diet (control, CON); control plus 0.5 mL of culture materials containing 108 cfu/mL of E. coli (E. coli); control with 400 mg/kg bacitracin methylene disalicylate (an antibiotic growth promoter, AGP); control plus 1000 g/t of feed of a blended mixture of natural feed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body weight; Challenge; Chicks; Natural feed additive.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200745

Assessment of a probiotic Containing Bacillus Subtilis on the Performance and Gut Health of Laying Japanese Quails (Coturnix Coturnix Japonica)
Provedor de dados: 89
Autores: Manafi,M; Khalaji,S; Hedayati,M.
ABSTRACT The present study was carried out to determine the effects of the inclusion of a spore-forming probiotic (Bacillus subtilis) in laying Japanese quail diets as an alternative to growth-promoting antibiotics to help produce healthy eggs and meat. This experiment was conducted as a completely randomized design with three treatments (control, 0.05% bacitracin methylene disalicylate (BMD), or 0.1% Bacillus subtilis) of five replicates of 11 quails each. Feed intake and egg production were recorded daily on cage basis. Body weight was determined at the beginning and end of the trial (36 and 42 weeks). At the end of the experiment (42 weeks), antibodies against Newcastle disease and avian influenza, egg components, Haugh units, eggshell quality and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Japanese quails; Egg production; Gut health; Immune response.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400599

Assessment of an intervention aimed at early discontinuation of intravenous antimicrobial therapy in a Brazilian University hospital
Provedor de dados: 55
Autores: Bonella,Gislaine Ferraresi; Fontes,Astrídia Marília de Souza; Jorge,Miguel Tanús; Silveira,Alexandre Barcelos Morais da.
Abstract Many interventions demonstrate success in adapting the duration of intravenous antibiotic therapy, but few studies have been conducted in developing countries. The aim of this study was to evaluate the effectiveness of an intervention in the induction of early discontinuation of intravenous antimicrobial therapy and/or its switch to oral therapy. The study employed a before–after intervention design that consisted of displaying a message in the computerized prescription on the third day and suspension of the prescription on the fifth day of intravenous antimicrobial therapy. A total of 465 patients were followed during the control period (CP) and 440 in the intervention period (IP). The intravenous therapy was switched to oral therapy for 11...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibiotics; Intravenous administration; Oral administration; Inappropriate prescribing.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000500462

Assessment of anti-diabetic activity of a novel hydrazine-thiazole derivative: in vitro and in vivo method
Provedor de dados: 60
Autores: Resende,Marina Ferrara de; Lino,Cleudiomar Inácio; Souza-Fagundes,Elaine Maria de; Rettore,João Vitor Paes; Oliveira,Renata Barbosa de; Labanca,Renata Adriana.
Diabetes mellitus is a chronic disease resulting in oxidative stress that promotes tissue damage. The appearance of this disease is highly related to lifestyle and food of the population, being of great interest to search for a dietary supplement that can also act by reducing oxidative alterations. Based on the broad range of biological activity of thiazole derivatives, this work aimed to evaluate the in vitro antioxidant activity of a novel hydrazine-thiazole derivative and studies in vivo. In in vivo experiments, the liver extracts of healthy and diabetic Wistar rats were used, with analysis to determine the enzymatic activity of SOD, CAT, GPx, and GR, and determination of lipid peroxidation. Finally, in the blood of these animals, biochemical parameters...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oxidative stress; Diabetes mellitus; Curcumin; Thiazole derivatives; Dietary supplement.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100509

Assessment of Anti-inflammatory and Antioxidant Properties of Safranal on CCI4-Induced Oxidative Stress and Inflammation in Rats
Provedor de dados: 42
Autores: ALAYUNT,ÖMER N.; AKSOY,LAÇINE; KARAFAKIOĞLU,YASEMIN S.; SEVIMLI,SEVCAN.
Abstract: The present study aimed to determine the antioxidative and anti-inflammatory effects of safranal on damage induced by CCl4. Experimental animals were divided into five groups. The first group was determined as the control group and no treatment was conducted. Second group rats were administered 1 mL/kg-day CCI4 during the experiment. Rats in Groups 3, 4 and 5 were administered 1 mL/kg-day CCI4 and 25 mg/kg, 50 mg/kg; 100 mg/kg safranal, respectively via gavage. Oxidative-antioxidant parameters, liver function enzymes and inflammatory cytokine levels were determined in liver samples obtained from the rats. Data analysis demonstrated that oxidative stress and inflammation markers were significantly higher in CCI4 administered groups (p&lt;0.05)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; CCI4; Inflammation; Safranal.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300704

Assessment of Antimicrobial Activity and Healing Potential of Mucous Secretion of Achatina fulica
Provedor de dados: 77
Autores: Santana,Wagno Alcântara; Melo,Cláudia Moura de; Cardoso,Juliana Cordeiro; Pereira-Filho,Rose Nely; Rabelo,Alessandra Silva; Reis,Francisco Prado; Albuquerque-Júnior,Ricardo Luiz Cavalcanti de.
Achatina fulica's secretion has been recently related to antibacterial, antifungal, and cicatricial properties, and it is influenced by the kind of food offered. Therefore, this study investigated the healing potential of dressing films based on mucous secretion of Achatina fulica. Thus, surgical wounds performed in black wistar rats were dressed with films based on collagen, and on mucous secretion of A. fulica fed with Lactuca sativa; undresses worked as wounds control. After 3, 7, 14 and 21 days the animals were euthanized, and the wounds were microscopically evaluated. On the 3rd and 7th days dressing films based on mucus provided acceleration of the formation maturation of granulation tissue, better epithelization rates, and more rapid replacement of...
Tipo: Journal article
Palavras-chave: Wound healing; Wound dressing; Land snails; Mucus.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200001

Assessment of antioxidants status and superoxide dismutase activity in HIV-infected children
Provedor de dados: 55
Autores: Pugliese,Camila; Patin,Rose Vega; Palchetti,Cecilia Zanin; Claudio,Cristiane Chiantelli; Gouvêa,Aída de Fátima Thomé Barbosa; Succi,Regina Célia de Menezes; Amancio,Olga Maria Silverio; Cozzolino,Silvia Maria Franciscato; Oliveira,Fernanda Luisa Ceragioli.
Objective:This study aims to assess the nutritional status of selenium, copper and zinc; and also the erythrocyte superoxide dismutase activity of HIV-infected children compared to a control group.Methods:A cross-sectional study was carried out with prepubertal HIV-infected children (n = 51) and their healthy siblings (n = 32). All biochemical measurements including plasma selenium, serum copper levels, serum and erythrocyte zinc levels and erythrocyte super-oxide dismutase activity were evaluated according to dietary, clinical and biochemical parameters.Results:Compared to the control group, the HIV-infected children had lower z-score values for height-for-age (p = 0.0006), higher prevalence of stunting (11.8%) (p = 0.047), lower selenium levels (p =...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidants; HIV and nutrition; Oxidative stress; Trace elements.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000500481

Assessment of bacterial translocation in obstructive jaundice using Tc-99m Escherichia coli
Provedor de dados: 52
Autores: Diniz,Simone Odília Fernandes; Barbosa,Alfredo José Afonso; Araújo,Ivana Durval; Nelson,David Lee; Machado,Leonardo Augusto da Silva; Bernardo Filho,Mário; Cardoso,Valbert Nascimento.
In obstructive jaundice, the passage of bacteria and endotoxins through the intestine wall to reach the systemic circulation is associated with septicemia, renal failure and pulmonary dysfunction. The aim of this work was to investigate bacterial translocation utilizing 99mTc-E.coli in an experimental model of obstructive jaundice. The levels of bilirubin in rats that were subjected to ligature of the bile duct were significantly increased when compared to control animals (p &lt; 0.001). The biodistribution results did not show any translocation of 99mTc-E.coli to the mesenteric lymphatic nodules, liver, spleen or lungs of the rats that suffered ligature of the bile duct (p &gt; 0.05). The evaluation of the intestinal permeability using "per os"...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial translocation; Technetium-99m E coli; Obstructive jaundice.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700006

Assessment of beneficial role of an insectivorous bird, jungle babbler (Turdoides striatus) predation, on Helicoverpa armigera infesting pigeon pea (Cajanus cajan) crop
Provedor de dados: 109
Autores: Bharucha,Bhavna; Padate,G. S.
Jungle babbler (Turdoides striatus), a widely spread sub-tropical insectivorous passerine is considered beneficial to agro-ecosystem, as they devour voraciously on insect matter especially Helicoverpa armigera, the gram pod borer, a notorious pest infesting and causing heavy loses to crops like pigeon pea (Cajanus cajan) which is a vital crop of semi-arid tropical and subtropical farming system, providing high quality vegetable protein. Helicoverpa is known to feed on flowers, pods, and seeds and is the most important biotic constraint affecting pigeon pea yields. Jungle babblers have a peculiar foraging style which helps expose the Helicoverpa larvae as well as pupae through various phenological stages of pigeon pea. For comparative assessment of their...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Jungle babbler; Helicoverpa; Pigeon pea; Small pod stage; Large pod stage.
Ano: 2010
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122010000200012

ASSESSMENT OF BENZOPHENANTHRIDINE AND PROTOPINE ALKALOIDS IN BROILER CHALLENGED AND NOT BY SALMONELLA HEIDELBERG
Provedor de dados: 89
Autores: Previato do Amaral,PFG; Otutumi,LK; Rodrigues,GV; Lima,ET; Fernandes,JIM; Vendrame,A; Mezalira,TS; Suenaga,SS; Sestari,DAO; Cestari,IED; Martins,LA.
ABSTRACT Salmonellosis is a globally important zoonosis, and Salmonella Heidelberg is one of the most prevalent serovars in poultry production worldwide, as well as in food poisoning cases. Antimicrobial drugs were previously widely used to face health challenges in animal production; however, since their ban as performance enhancers, many alternative strategies have been proposed. One of these strategies is the use of plant extracts, such as those containing the alkaloids benzophenanthridine and protopine. These compounds have antimicrobial, anti-inflammatory, immunomodulation, and nutritional effects. The objective of the present study was to evaluate the effects of the supply of a product containing benzophenanthridine and protopine (Sangrovit(r)WS 100...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alkaloids; Broilers; Intestinal morphology; Performance; Sanguinarine.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300525

Assessment of Blood Chemistry, Weight Gain and Linear Body Measurements of Pre-Puberal Buck Rabbits Fed Different Levels of Neem (Azadirachta indica A. Juss.) Leaf Meals
Provedor de dados: 117
Autores: Ogbuewu,I.P; Uchegbu,M.C; Okoli,I.C; Iloeje,M.U.
A 16 week feeding trial was carried out to investigate the effect of dietary Neem (Azadirachta indica A. Juss.) leaf meal (NLM) on body weight gain, linear body measurements and blood chemistry of pre-puberal buck rabbits. Four treatment diets were formulated to contain the NLM at inclusion levels of 0 (control), 5, 10 and 15%. Thirty six crossbred New Zealand white × Chinchilla pre-puberal buck rabbits aged 5 to 6 mo were divided into four groups of nine rabbits and each group was further replicated into three of three rabbits each. The rabbits were randomly assigned to the four dietary treatments. Lymphocyte count of rabbits fed control diet (8.32 × 10(9) mm-3) was significantly higher than the group fed 15% NLM (4.60 × 10(9) mm-3). The mean cell...
Tipo: Journal article
Palavras-chave: Neem leaf meal; Body weight gain; Blood chemistry; Linear body measurements; Buck rabbits.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000300020

ASSESSMENT OF CORN WATER UPTAKE BASED ON SAP HEAT TRACING UNDER WATER-STRESSED CONDITIONS
Provedor de dados: 91
Autores: Santos,Antonio Odair; Bergamaschi,Homero; Rosa,Luís M. G.; Bergonci,João I.; Radin,Bernadete.
ABSTRACT Crop water monitoring is an important aspect for precise control of irrigation. A reliable and movable technique is needed to properly assess water uptake of crops in the field. Water uptake by field grown maize ( Zea mays L.), in water-limited conditions was verified with the heat pulse system. The temperature difference between two radially inserted thermocouples, one 9 mm above and the other 4 mm below a heater piercing the maize stem, was measured every 0.3 sec following emission of a heat pulse in conditions of varied atmospheric demand. Comparisons of heat pulse system outputs and a high precision transpiration model estimates were done on hourly and daily basis, when low sap velocities were expected to occur. Hourly and daily basis of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sap flow; Transpiration; Water stress; Heat pulse.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43661999000200145

Assessment of current procedures for animal food production chains and critical control points regarding their safety and quality: preliminary results from the Organic HACCP-project
Provedor de dados: 21
Autores: Wyss, Gabriela; Brandt, Kirsten.
Within the 5th EU-framework project “Recommendations for improved procedures for securing consumer oriented food safety and quality of certified organic foods from plough to plate“(QLRT-2002-02245; “Organic HACCP”), a systematic analysis was carried out among selected certified organic food production chains, such as eggs and milk but also wheat bread,cabbage, tomatoes, apples and wine, to investigate current procedures of production management and quality assurance. For each of seven quality and safety criteria, such as microbial toxins and abiotic contaminants, potential pathogens, natural plant toxicants, freshness and taste, nutrient content and food additives, fraud as well as social and ethical aspects the information was analysed to identify...
Tipo: Conference paper, poster, etc.
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4999/1/Wyss-2005-SAFO-HACCP.pdf

Assessment of cytokine values in serum by RT-PCR in HIV-1 infected individuals with and without highly active anti-retroviral therapy (HAART)
Provedor de dados: 80
Autores: Meira,DA; Almeida,RAMB; Barbosa,AN; de Souza,LR; Olivo,TET; Henriques,RMS; Golim,MA; Araújo Jr,JP; Nagoshi,LR; Orikaza,CM; Calvi,SA.
A cross-sectional study was performed on HIV-1 infected individuals with or without antiretroviral treatment (ARV) in the AIDS Day Hospital, Botucatu Medical School, UNESP. Between August 2004 and October 2005, 73 HIV-1 infected individuals were divided into three groups: infected individuals with or without AIDS who had never received ARV (G1 = 15); patients on HAART that had had plasma HIV-1 RNA viral load (VL) equal to or greater than 50 copies/mL (G2 = 27); and patients on HAART with undetectable VL for at least the past six months (G3 = 31). There was also an additional group that comprised blood donors without any sign of the disease and with negative HIV serum tests (G4 = 20), which was the control group. Serum cytokine levels (values in pg/mL) were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: RT-PCR; ELISA; Cytokines; HIV; AIDS; HAART; Apoptosis.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000400011

Assessment of diseases susceptibility of peach cultivars in experimental plots and on-farm for organic and low-input systems. Baseline of French case studies
Provedor de dados: 21
Autores: Parveaud, Claude-Eric; Brenner , Johanna; Ondet, Sophie-Joy; Gomez, Christelle; Libourel, Gilles; Warlop, François; Brun, Laurent; Mercier, Vincent; Clauzel, Guy; Audergon, Jean-Marc.
Despite a high turn-over of new peach cultivars, their suitability for organic and low-input systems remains unknown for most of them. Diseases susceptibility is an important criteria to consider since diseases control is a bottleneck to peach production in theses systems. Since 2001, 81 peach cultivars were assessed in 2 experimental sites and 7 on-farm plots.
Tipo: Conference paper, poster, etc.
Palavras-chave: Fruit and berries Breeding; Genetics and propagation Crop health; Quality; Protection.
Ano: 2015
URL: http://orgprints.org/29169/1/Peach%20susceptibility%20Parveaud%20Innohort%202015%20.pdf

Assessment of economic and environmental performance in citrus-based intercropping systems
Provedor de dados: 94
Autores: Martins,Carlos Roberto; Rodrigues,Geraldo Stachetti; Barros,Inácio de.
Abstract  The economic and environmental performances of agriculture intercropping depend on the complementarities between the crops that make up the system. The objective of this work was to analyze the citrus-based intercropping systems in the Coastal Tablelands region of Northeastern Brazil, aiming to identify the associations of crops with better economic and environmental performances. The study started with the construction of a set of integrated indicators, with which the field information was recorded and the performance indices calculated, based on three principles: Profitability, Productive Efficiency, and Biological Regulation. Citrus orchards in monoculture resulted in lower environmental economic performance indices. The intercropping systems...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fruticulture; Citriculture; Sustainability assessment; Coastal Tablelands; Smallholding growers.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452021000100502

Assessment of electrochemotherapy effects on the development of Ehrlich solid tumor in swiss mice using a novel electroporator device
Provedor de dados: 45
Autores: Cunha,R.M.C.; Lavalle,G.E.; Reis,D.C.; Horta,R.S.; Teixeira,S.V.; Ramirez,J.A.; Araújo,R.B.
ABSTRACT Electrochemotherapy is a local anticancer treatment in which non-permeant chemotherapeutic drugs are associated with electric pulses of well-established parameters. The electric pulses cause pores to open on the plasma membrane and facilitate drug transport, enhancing cytotoxicity and reducing side effects. Assessment of electrochemotherapy effects on Ehrlich solid tumor development in this work aims to evaluate in vivo usage of the electroporator device developed by the Department of Electrical Engineering of Engineering School of UFMG. Therefore, 40 Swiss mice were inoculated with Ehrlich tumor cells, and developed the tumor in solid form. After 21 days, mice were subjected to specific treatment protocols (control, bleomycin, electric pulses and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mouse; Oncology; Electrochemotherapy; Experimental tumor.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000601581

Assessment of Farmers’ Plant Disease Knowledge in Organic Cacao Cultivation
Provedor de dados: 21
Autores: Heuschekel, Zoe; Home, Robert; Schneider, Monika; Pohlan, Jürgen.
The Alto Beni region on the eastern foothills of the Andes accounts for 90% of certified organic cacao production in Bolivia and other tropical products for the city of La Paz. In the region more than 2200 households strongly depend on the cultivation of cacao. Cacao is cultivated on small holder farms mostly in diversified agroforestry systems. These systems contribute to both the conservation of biodiversity and the food security of the farmers.  An outbreak of the frosty pod disease caused by Moniliophthora roreri in 2011 is now threatening these relatively sustainable production systems. Examples all over Latin America showed the abandonment and elimination of cocoa systems and the loss of biodiversity and local revenues after its attack. Frosty pod...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Education; Extension and communication Bolivia.
Ano: 2013
URL: http://orgprints.org/24785/1/Heuschkel-etal-2013-Tropentag-vortrag.pdf

Assessment of fetal risk associated with exposure to cancer chemotherapy during pregnancy: a multicenter study
Provedor de dados: 56
Autores: Peres,R.M.; Sanseverino,M.T.V.; Guimarães,J.L.M.; Coser,V.; Giuliani,L.; Moreira,R.K.; Ornsten,T.; Schüler-Faccini,L.
The objective of the present study was to evaluate and quantify fetal risks involved in the administration of cancer chemotherapy during gestation, as well as to assess the long-term effects on the exposed children. In this retrospective, cohort study, we reviewed the records of women aged 15 to 45 years with a diagnosis of malignancy or benign tumors with malignant behavior at three reference services in the State of Rio Grande do Sul, Brazil, from 1990 to 1997. All patients with a diagnosis of pregnancy at any time during the course of the disease were selected, regardless of whether or not they received specific medication. Fetal outcomes of 14 pregnancies with chemotherapy exposure were compared to that of 15 control pregnancies in which these drugs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cancer; Pregnancy; Chemotherapy; Teratogenicity; Fetal outcome.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001200007

Assessment of food safety in organic farming
Provedor de dados: 21
Autores: Hansen, Birgitte; Alrøe, Hugo Fjelsted; Kristensen, Erik Steen; Wier, Mette.
Public concern about food safety in Europe has grown in response to the BSE scandal and problems with Salmonella and Campylobacter, etc. Such health and safety considerations are among the most important incentives for buying organic food, and have helped to promote rapid growth in the organic sector.     Against this background the present article reviews food safety from an organic perspective.  To our knowledge this has not been done previously. A novel definition is introduced which incorporates safety aspects of both the product and the agri-food-system. A Driving force-State-Impact-Response (DSIR) framework, that incorporates recent findings relating to organic products, is employed to analyse processes that control the safety of food. The safety of...
Tipo: Working paper
Palavras-chave: Food security; Food quality and human health Indicators and other value-laden measures.
Ano: 2002
URL: http://orgprints.org/206/1/Hansen_organic_food_safety.pdf

Assessment of four compost types on the nematode population dynamics in the soil sown with okra
Provedor de dados: 21
Autores: Olabiyi, Timothy; Oladeji, O.O.
Two parallel experiments were conducted at the Teaching and Research Farm, Ladoke Akintola University of Technology and Papa Aireke Farm, both at Ogbomoso, Nigeria, to assess the effect of four different compost types on the nematode population dynamics; the growth and yield of okra, sown into nematode infested soil. Each of the compost was prepared through Rapid Composting Technology with Trichoderma harzianum as decomposer, using Windrow method. The four compost types were neem based, cassava peel based, sawdust based and Tithonia based. Nematode susceptible okra variety (NHAe-84-1) was used as test plant. The compost was applied at the rate of 1ton/ha to the treated okra while the okra plants on the untreated soil served as the control. The experimental...
Tipo: Journal paper
Palavras-chave: Composting and manuring.
Ano: 2014
URL: http://orgprints.org/28203/7/28203.pdf

Assessment of genetic mutations in the XRCC2 coding region by high resolution melting curve analysis and the risk of differentiated thyroid carcinoma in Iran
Provedor de dados: 74
Autores: Fayaz,Shima; Fard-Esfahani,Pezhman; Fard-Esfahani,Armaghan; Mostafavi,Ehsan; Meshkani,Reza; Mirmiranpour,Hossein; Khaghani,Shahnaz.
Homologous recombination (HR) is the major pathway for repairing double strand breaks (DSBs) in eukaryotes and XRCC2 is an essential component of the HR repair machinery. To evaluate the potential role of mutations in gene repair by HR in individuals susceptible to differentiated thyroid carcinoma (DTC) we used high resolution melting (HRM) analysis, a recently introduced method for detecting mutations, to examine the entire XRCC2 coding region in an Iranian population. HRM analysis was used to screen for mutations in three XRCC2 coding regions in 50 patients and 50 controls. There was no variation in the HRM curves obtained from the analysis of exons 1 and 2 in the case and control groups. In exon 3, an Arg188His polymorphism (rs3218536) was detected as a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DNA repair; Gene polymorphism; Mutation analysis.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000100004

Assessment of gonadal follicle size in the invading bivalve Limnoperna fortunei (Mytilidae)
Provedor de dados: 47
Autores: Guimarey,Pilar; Darrigran,Gustavo; Damborenea,Cristina; Penchaszadeh,Pablo E.
Limnoperna fortunei is an invasive gonochoristic and byssate freshwater bivalve originary from Southeast Asia. It shows great adaptive-reproductive ability, so knowledge of the gonadal cycle is an important factor for the prevention and control of this bioinvasion. This species is highly damaging to natural and human environments. We analyzed the distribution and maturity state of reproductive follicles in the mantle of both male and females. Male results are not shown but, in general, they followed the same pattern as that of females. Routine histological techniques included serial longitudinal sections and transversal sections in three body regions (anterior, middle and psoterior). Oocytes with conspicuous nucleoli were measured on both types of sections...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Golden mussel; Gonadal cycle; Bioinvasion; Control.
Ano: 2011
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452011000200004

Assessment of growth and yield performance of rubber tree clones of the IAC 500 series
Provedor de dados: 86
Autores: Gonçalves,Paulo de Souza; Scaloppi Júnior,Erivaldo José; Martins,Maria Alice; Moreno,Rogério Manoel Biagi; Branco,Roberto Botelho Ferraz; Gonçalves,Elaine Cristine Piffer.
The objective of this work was to evaluate the performance of 15 clones of the IAC 500 series of Hevea brasiliensis, developed at Instituto Agronômico (IAC), over a 12-year period, in the northwest region of São Paulo State, Brazil. The 15 new clones evaluated are primary clones obtained from selected ortets within half-sib progenies. The clone RRIM 600, of Malaysian origin, was used as the control. Dry rubber yield performance over a four-year period, mean girth at the tenth year, girth increment before and during tapping, thermal properties of the natural rubber produced and other characters of the laticiferous system were evaluated. Forty percent of the clones were superior in comparison to the control for yield. Clone IAC 500 recorded the highest yield...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hevea brasiliensis; Bark thickness; Brown bast; Vigor; Yield.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011001200009

Assessment of health risks and local intervention associated to living together with dogs and cats, developed at Jardim Parana, district of Brasilandia. São Paulo, Sp,- Brazil, 2003
Provedor de dados: 195
Autores: Gomes, Luciana Hardt; de Almeida, Marilene Fernandes; Paranhos, Noêmia Tucunduva; Garcia, Rita de Cássia; Nunes, Vânia de Fátima Plaza; Montenegro Neto, Hildebrando; Cardoso, Sônia Maria Sodré.
Objective: To carry out a situational diagnosis of interactions among man, animal and environment, to test intervention and control model in dogs and cats and lo make local population aware in order to improve human and animal health. Material and Method: The project "Evaluation of risks to the heath and local intervention associated to living together with dogs and cats" was carried out in the area invaded in Jardim Paraná, District of Brasilândia, São PauLo city, Brazil, in 2003 by the Center of Zoonosis Control of the São Paulo Municipality. Animal census, vaccinations, treatment of ectoparasitosis and endoparasitosis, animal register, animal sterilization, serological and soil examinations and removal of animals was carried through. Forty seven percent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zoonoses; Community health; Local planning; Animal health; Environment; Risk factors; Human; Animal; Interactions; Intervention; Population control; Sterilization; Dogs; Cats Zoonosis; Planificación en salud comunitaria; Estrategias locales; Salud animal; Medio ambiente y salud publica; Factores de riesgo; Hombres; Animales; Vínculo ser humano-animal; Estudios de intervención; Regulación de la población zoonoses; Planejamento em saúde comunitária; Estratégias locais; Saúde animal; Meio ambiente e saúde pública; Fatores de risco; Homens; Animais; Vínculo homem-animal; Estudos de intervenção; Controle da população; Esterilização reprodutiva; Cães; Gatos.
Ano: 2003
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3262

Assessment of immunity against avian colibacillosis induced by an aroA mutant containing increased serum survival gene in broilers
Provedor de dados: 58
Autores: Salehi,Taghi Zahraei; Tabatabaei,Saeid; Karimi,Vahid; Fasaei,Bahar Nayeri; Derakhshandeh,Abdollah; Jahromi,Omid Ali Nekoui.
Colibacillosis is an important disease in the poultry industry which causes serious economic damages. As it is suggested that vaccination is one of the means to control colibacillosis, we tried to investigate the vaccine potential of a ΔaroA derivative of an O78:K80 avian pathogenic Escherichia coli containing increased serum survival gene. 490 chicks were selected as follows: For assessment of virulence of ΔaroA mutant, 30 chicks were divided into three groups and injected with 0.5ml of PBS or bacterial suspension containing either10(7)colony forming units (CFU) of mutant or parent strains via subcutaneous route. Macroscopic lesions and mortality rate were recorded in different groups during the week after challenge. For assessment of safety and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chickens; Avian pathogenic Escherichia coli; ΔaroA mutant; Vaccine.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100043

Assessment of Integrated Weed Management Approaches on Asphodelus tenuifolius in Chickpea
Provedor de dados: 87
Autores: KHAN,I.; KHAN,M.I.; ULLAH,H.; HAROON,M.; GUL,B.
ABSTRACT: Chickpea is the third most important crop of rainfed areas of Pakistan, and it is severely affected by noxious weed Asphodelus tenuifolius. Therefore, a field trial was conducted to evaluate the effect of different allelopathic weed extracts, herbicides and mulches in controlling A. tenuifolius and other associated weeds in chickpea at “District Karak” Khyber Pakhtunkhwa-Pakistan. The experiment was carried out in a Randomized Complete Block Design (RCBD) and replicated thrice using a chickpea cultivar (Chattan) which was grown for the experimental trial. There were 9 treatments along with control for comparison. The treatments Stomp 330 EC (Pre-emergence) at 2.5 L ha-1, Fenoxaprop-p-ethyl, Bromoxanil+MCPA (Tank mix), Starane-M, mulching...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Cicer arietinum L.; Herbicides; Mulches; And wild onion.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100300

Assessment of Land-based Sources and Activities. Affecting the Marine Environment
Provedor de dados: 20
The Red Sea and Gulf of Aden (Figure 1.1) constitute a unique ecosystem with high biological diversity. Their natural resources provide a substantial economic support for the region: in addition to the fishery industry, which has ensured food security to many people of the region and created jobs for others, tourism is an ever growing and increasingly important industry for commerce and other economic activities. Hence, the marine environment should be well protected from the adverse impacts of pollution to ensure the sustainable use of its resources and good health of its users. Continuous degradation of the marine environment poses a threat to public health through the contamination of seafood, direct contact and digestion of polluted water. Damage to...
Tipo: Report
Palavras-chave: Marine environment.
Ano: 1997
URL: http://hdl.handle.net/1834/285

Assessment of lipolytic activity of isolated microorganisms from the savannah of the Tocantins
Provedor de dados: 3
Autores: Soares, Marysa de Kássia Guedes; Facundes, Bruna Coelho; Chagas Júnior, Aloísio Freitas; Silva, Ezequiel Marcelino da.
Current study assesses the biodiversity and selects lipase-producer microorganisms with industrial interest, from the savannah of the state of Tocantins, Brazil. Seventeen pequi microorganisms (Caryocar brasiliense) were isolated in the decomposition stage and 35 microorganisms were retrieved from the soil fraction under the collected pequi. Yarrowia lypolitica strain was used as positive control in all assays. The 52 strains were subjected to tests in a solid medium with Tween 20 for checking halos formed by crystals, indicating lipase production by inoculated strains. Another test to confirm lipase producers was conducted in microplates with liquid medium and enriched with p-nitrophenyl palmitate (pNPP) monitored at 410 ηm. The AS16 and AP5 strains...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lipase; Caryocar brasiliense; Yarrowia lypolitica; P-nitropheny lpalmitate.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/24324

Assessment of mutagenic and antimutagenic effects of Punica granatum in mice
Provedor de dados: 60
Autores: Valadares,Marize Campos; Pereira,Enir Raquel Tavares; Benfica,Polyana Lopes; Paula,José Realino.
In the present study, the ability of Punica granatum ethanolic leaf extract (PGL) and Punica granatum ethanolic fruit extract (PGF) to induce mutagenicity or to modulate the genotoxic effects induced by the alkylating agent cyclophosphamide (CP) was evaluated. Swiss male mice were treated by gavage for 10 days with PGL or PGF (12.5, 25, 50, and 75 mg/kg/day) prior to exposure to CP (i.p. 200 mg/kg), 24 h after the end of the treatment. Initial observations revealed that normal mice treated with both extracts (12.5, 25, 50, and 75 mg/kg/day) showed a similar micronucleated polychromatic erythrocyte (MNPCE) frequency to that of the control group. Investigation of the protective effect of PGL and PGF based on data analysis revealed that, irrespective of dose...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Punica granatum/mutagenic effects; Micronucleic; Genotoxicity; Cyclophosphamide.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000100014

Assessment of pharmacological activities of two medicinal plant of Bangladesh: Launaea sarmentosa and Aegialitis rotundifolia roxb in the management of pain, pyrexia and inflammation
Provedor de dados: 48
Autores: Raju,Golam Sarwar; Moghal,Md Mizanur Rahman; Hossain,Mohammad Salim; Hassan,Md Mahadi; Billah,Md Mustahsan; Ahamed,Sayed Koushik; Rana,SM Masud.
BACKGROUND: The current study aims at evaluating the analgesic, anti-pyretic and anti-inflammatory properties of methanolic extract of the stem, bark and leaves of Launaea sarmentosa and Aegialitis rotundifolia roxb. RESULTS: The AELS and AEAR extract presented a significant (***p &lt; 0.001) dose dependent increase in reaction time in writhing method and showed inhibition of 63.1% and 57.1% respectively at the doses of 400 mg/kg body weight while standard drug showed (P &lt; 0.001) inhibition of 69.23%. In tail immersion method, AELS and AEAR showed maximum time of tail retention at 30 min in hot water i.e. 6.93 sec and 6.54 sec respectively at highest doses of 400 mg/kg body weight than lower dose while standard pentazocine showed reaction time of 7.62...
Tipo: Journal article
Palavras-chave: Launaea sarmentosa; Aegialitis rotundifolia roxb; Analgesic; Antipyretic; Anti-inflammatory.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100049

Assessment of physical and physicochemical quality of main chocolates traded in Peru
Provedor de dados: 109
Autores: Chire-Fajardo,Gabriela Cristina; Valdivia-Arrunategui,Rocío Alicia; Orihuela-Rivera,Carmen Adela; Ureña- Peralta,Milber Oswaldo.
Abstract: The quality of the main chocolates marketed in Peru was determined. The physical aspect: color (C *, H *, IB), hardness and particle size, as well as physicochemical: water activity (aw), moisture, fat and ash, correlating with the declaration of ingredients presented in the packaging. We evaluated 30 experimental units of chocolates (imported, domestic, dark chocolate and milk) by experimental methods, randomly acquired from different establishments. The difference between color and hardness by origin was attributed to the dairy component. Dark chocolate had lower values of color components (8.75 ± 0.94 C *, 7.60 ± 4.71 H * and 28.46 ± 0.86 IB) than milk constituents (15.04 ± 2.78 C, 34.59 ± 7.46 H * and 34.55 ± 2.87 IB) and in hardness values...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ash; Color; Fat; Moisture; Particle size; Texture; Water activity.
Ano: 2017
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000200164

Assessment of physiological potential of cucumber seeds using the software Seedling Vigor Imaging System® (SVIS®)
Provedor de dados: 95
Autores: Chiquito,Adrielle Aparecida; Gomes Junior,Francisco Guilhien; Marcos-Filho,Julio.
The software Seed Vigor Imaging System (SVIS®), has been successfully used to evaluate seed physiological potential by automated analyses of scanned seedlings. In this research, the efficiency of this system was compared to other tests accepted for assessing cucumber (Cucumis sativus L.) seed vigor of distinct seed lots of Supremo and Safira cultivars. Seeds were subjected to germination, traditional and saturated salt accelerated aging, seedling emergence, seedling length and SVIS analyses (determination of vigor indices and seedling growth uniformity, lengths of primary root, hypocotyl and whole seedlings). It was also determined whether the definition of seedling growth/uniformity ratios affects the sensitivity of the SVIS®. Results showed that analyses...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis sativus; Quality control; Germination; Vigor.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000200010

Assessment of quality of life in type II diabetic patients using the modified diabetes quality of life (MDQoL)-17 questionnaire
Provedor de dados: 60
Autores: Prajapati,Vivek Bhanubhai; Blake,Raushan; Acharya,Leelavathi Dinesh; Seshadri,Shubha.
ABSTRACT Diabetic complications, comorbidities, and cost of treatment affect the quality of life (QoL) of an individual. The QoL assessment is considered an important measure of outcome in chronic disease management. The objective of our study was to assess the quality of life in Type II diabetes mellitus patients with and without complications using the modified diabetes quality of life (MDQoL)-17. A prospective descriptive study was conducted over 6 months, after taking ethical committee approval. As per the inclusion criteria from medicine wards of tertiary care hospital, 250 patients were selected. Demographic characteristics were documented in the data collection form and the patients were administered with the MDQoL questionnaire in different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quality of Life; Diabetes complications/prevention and control; Diabetes Mellitus; Surveys and Questionnaires/utilization.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000400613

Assessment of Rodent Control Projects in Vietnam: Adoption and Impact
Provedor de dados: 31
Autores: Palis,   Florencia G.; Sumalde,   Zenaida M.; Hossain,   Mahabub.
Tipo: Report
Palavras-chave: Crop Production/Industries.
Ano: 2004
URL: http://purl.umn.edu/113225

Assessment of selected soil parameters in a long-term Western Canadian organic field experiment
Provedor de dados: 21
Autores: Entz, Martin; Welsh, Cathy; Tenuta, Mario; Chen, Yu Ying; Nelson, Alison; Froese, Jane.
A long-term field study was used to compare soil nitrogen and phosphorous status, and soil aggregate stability in organic and conventional cropping systems.  Two rotations were tested: a grain only and a grain-alfalfa hay rotation.  The organic systems had a lower nitrate leaching potential than the same rotations under conventional management.  After 13 years, one organic system (the grain-alfalfa; no manure return) is suffering serious soil P depletion. However, the grain only and the grain-alfalfa with manure return to land systems had soil P levels similar to the prairie grass control treatment and showed no signs of P deficiency. Despite having lower levels of organic carbon, the organic soils had higher levels of wet aggregate stability than...
Tipo: Conference paper, poster, etc.
Palavras-chave: Production systems.
Ano: 2007
URL: http://orgprints.org/9887/1/Entz%2Detal%2D2007%2Dsoil_parameters.pdf

Assessment of selenium mineralization and availability from catch crops
Provedor de dados: 21
Autores: Stavridou, Eleftheria; Thorup-Kristensen, Kristian; Young, Scott D.
Selenium (Se) release from four plant species (Indian mustard, fodder radish, Italian ryegrass and hairy vetch) was measured under controlled leaching conditions and in a pot incubation experiment as part of a study of the potential for using these plant species as Se catch crops. Catch crops may reduce Se leaching and, by subsequent release of Se from the plant material, increase the available Se for succeeding crops. Plants grown both without and with Se addition (250 g Se/ha) were tested. In the leaching experiment, frozen plant material was incorporated into soil columns and incubated at room temperature for up to 19 weeks. The results showed that Se concentrations in the leachate were higher when Se-enriched plant material was incorporated in the...
Tipo: Journal paper
Palavras-chave: Nutrient turnover; Farm nutrient management.
Ano: 2011
URL: http://orgprints.org/19589/4/19589.pdf

Assessment of soil ecosystem in degraded areas of vineyards after organic treatments
Provedor de dados: 21
Autores: Landi, S.; D'Errico, G.; Gagnarli, E.; Simoni, S.; Goggioli, D.; Guidi, S.; D'Avino, L.; Lagomarsino, A.; Valboa, G.; Castaldini, M.; Agnelli, A.E.; Fantappiè, M.; Lorenzetti, R.; Priori, S.; Costantini, E.A.C.
In Italian vineyards, it is quite common to have areas characterized by problems in vine health, grape production  and quality, often caused by improper land preparation before vine plantation and/or management. Causes for soil  malfunctioning can include reduced contribution of the soil fauna to the ecosystem services such as nutrient cycles  and organic matter turnover.  ReSolVe is a transnational and interdisciplinary project, supported by Core-Organic+ program, aimed at testing the  effects of selective agronomic strategies for restoring optimal soil functionality in degraded areas within organic  vineyard. For this purpose, the evaluation and biomonitoring of the abundance of soil mesofauna, nematodes  and microarthropods, represents an efficient tool...
Tipo: Conference paper, poster, etc.
Palavras-chave: Soil quality; Soil biology; Nutrient turnover; Soil; Biodiversity and ecosystem services.
Ano: 2017
URL: http://orgprints.org/32424/1/EGU2017-7025.pdf

Assessment of soil erosion in olive orchards (Olea europaea L.) under cover crops management systems in the tropical region of Brazil
Provedor de dados: 90
Autores: Beniaich,Adnane; Silva,Marx Leandro Naves; Guimarães,Danielle Vieira; Bispo,Diêgo Faustolo Alves; Avanzi,Junior Cesar; Curi,Nilton; Pio,Rafael; Dondeyne,Stefaan.
ABSTRACT In the tropics, water erosion is one of the most important factors leading to the degradation and deterioration of agricultural land. Olive orchards have a low canopy coverage, especially during the first years after planting, due to the low density of olive trees. Given the fast expansion of olive orchards in Brazil, this study aimed to evaluate the effect of cover vegetation on soil and water losses under natural rainfall. In addition, it was assessed the crop performance and the vegetation cover index in different management systems in olive orchards. The study was carried out in soil erosion plots, where water and sediment were sampled and measured over two crops season, under the following treatments: in the first season, bare soil with olive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil conservation; Soil loss; Land degradation; Runoff; Olive cultivation.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832020000100503

Assessment of soil properties by organic matter and EM-microorganism incorporation
Provedor de dados: 90
Autores: Valarini,P. J.; Díaz Alvarez,M. C.; Gascó,J. M.; Guerrero,F.; Tokeshi,H.
Properties of a claim loam soil, collected in Aranjuez (Madrid) and enriched with organic matter and microorganisms, were evaluated under controlled temperature and moisture conditions, over a period of three months. The following treatments were carried out: soil (control); soil + 50 t ha-1 of animal manure (E50); soil + 50 t ha-1 of animal manure + 30 L ha-1 of effective microorganisms (E50EM); soil + 30 t ha-1 of the combination of various green crop residues and weeds (RC30) and soil + 30 t ha-1 of the combination of various green crop residues and weeds + 30 L ha-1 of effective microorganisms (RC30EM). Soil samples were taken before and after incubation and their physical, chemical, and microbiological parameters analyzed. Significant increase was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quality indicators microorganisms physical; Chemical; And biochemical soil properties.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832003000300013

Assessment of somaclonal variation in somatic embryo-derived plants of yacon [Smallanthus sonchifolius (Poepp. and Endl.) H. Robinson] using inter simple sequence repeat analysis and flow cytometry
Provedor de dados: 69
Autores: Viehmannova,Iva; Bortlova,Zuzana; Vitamvas,Jan; Cepkova,Petra Hlasna; Eliasova,Katerina; Svobodova,Eva; Travnickova,Martina.
Background Yacon (Smallanthus sonchifolius) is a root crop native to the Andean region. Low sexual reproductive capacity is a major constraint facing the genetic breeding of this crop. Biotechnological techniques offer alternative ways to widen genetic variability. We investigated somaclonal variation in regenerants of yacon derived from in vitro somatic embryogenesis using simple sequence repeat (ISSR) analysis and flow cytometry. Results Twenty tested ISSR primers provided a total of 7848 bands in 60 in vitro regenerants and control plant. The number of bands for each primer varied from 3 to 10, and an average of 6.95 bands was obtained per ISSR primer. Eight primers were polymorphic and generated 10 polymorphic bands with 7.19% mean polymorphism. ISSR...
Tipo: Journal article
Palavras-chave: DNA polymorphism; Molecular markers; Ploidy level; Proembryogenic callus.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000200008

Assessment of swim-up and discontinuous density gradient in sperm sex preselection for bovine embryo production
Provedor de dados: 45
Autores: Lucio,A.C; Resende,M.V; Dernowseck-Meirelles,J.A.; Perini,A.P.; Oliveira,L.Z; Miguel,M.C.V; Carmo,A.S; Tomita,S.Y; Alves,B.C.A; Fazano,F.A.T.; Lima,V.F.M.H.
The purpose of this work was to associate the modified swim-up method with centrifugation in density gradient for the separation of X-bearing spermatozoa. Sperm viability and integrity were evaluated through the Trypan Blue/Giemsa staining method. Quality control of centrifuged spermatozoa was performed in in vitro produced embryos. The results were validated by the sex ratio of in vitro produced embryos using PCR by Y- specific sequences present in bovine male genomic DNA. After determining genetic sex of in vitro produced embryos, the results showed difference (P&lt;0.05) in deviation of sex ratio when comparing the control group (45.2% females) with the other spermatozoa selection procedures (60.6% females) (P&lt;0.05). The sperm selection methods are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Density gradient centrifugation; Embryo sex ratio; Percoll™; Swim-up.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000300001

Assessment of the cytotoxic, genotoxic, and antigenotoxic activities ofCeltis iguanaea (Jacq.) in mice
Provedor de dados: 42
Autores: BORGES,FLAVIO F.V.; MACHADO,THIAGO C.; CUNHA,KÊNYA S.; PEREIRA,KARLA C.; COSTA,ELSON A.; PAULA,JOSÉ R. DE; CHEN-CHEN,LEE.
Ethnobotanical surveys of Cerrado native plants show that leaves of Celtis iguanaea (Jacq.) Sargent (Cannabaceae), popularly known in Brazil as “esporão de galo”, are used in folk medicine for body pain, asthma, cramps, poor digestion, urinary infection, kidney dysfunctions, as well as a stimulant and diuretic. This work aimed at evaluating possible C. iguanaea aqueous leaf extract (CALE) cytotoxicity, genotoxicity, and antigenotoxicity using the mouse bone marrow micronucleous test. To assess CALE genotoxicity, Swiss mice were orally treated with three different extract concentrations (100, 300, and 500 mgkg−1). To evaluate its antigenotoxicity, the same doses were used simultaneously with a single i.p. dose of mitomycin C (MMC, 4mg.kg−1). The frequencies...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytotoxicity; Genotoxicity; Mice; Medicinal plant.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000300955

Assessment of the diagnostic value of diffusion tensor imaging in patients with spinal cord compression: a meta-analysis
Provedor de dados: 56
Autores: Li,X.F.; Yang,Y.; Lin,C.B.; Xie,F.R.; Liang,W.G.
We investigated the diagnostic value of the apparent diffusion coefficient (ADC) and fractional anisotropy (FA) of magnetic resonance diffusion tensor imaging (DTI) in patients with spinal cord compression (SCC) using a meta-analysis framework. Multiple scientific literature databases were exhaustively searched to identify articles relevant to this study. Mean values and standardized mean differences (SMDs) were calculated for the ADC and FA in normal and diseased tissues. The STATA version 12.0 software was used for statistical analysis. Of the 41 articles initially retrieved through database searches, 11 case-control studies were eligible for the meta-analysis and contained a combined total of 645 human subjects (394 patients with SCC and 251 healthy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diffusion tensor imaging; Apparent diffusion coefficient; Fractional anisotropy; Spinal cord compression; Meta-analysis.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000100704

Assessment of the DNA Damage in Human Sperm and Lymphocytes Exposed to the Carcinogen Food Contaminant Furan with Comet Assay
Provedor de dados: 52
Autores: Pandir,Dilek.
ABSTRACTThe aim of this work was to assess the damage of DNA in human blood cell and spermin vitro under the influence of furan. These cells were administered 0-600 μM of furan at 37 and 32oC for 30 and 60 min, respectively. A significant increase in tail DNA%, tail length and moment indicating DNA damage was observed at increasing doses when compared to the controls. The treatment with 300 and 600 μM of furan showed a maximum increase of 86.74 ± 2.43 and 93.29 ± 8.68 compared to the control tail DNA% in lymphocytes. However, only 600 μM of furan showed a maximum increase of 94.71 ± 6.24 compared to the control tail DNA% in sperm. The results suggested that furan caused DNA damage in lymphocytes at increasing doses, but appeared to have not the same effect...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Furan; Tail length; DNA damage; Human blood cells; Comet assay.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000500773

Assessment of the effectiveness of a ventilator associated pneumonia prevention bundle that contains endotracheal tube with subglottic drainage and cuff pressure monitorization
Provedor de dados: 55
Autores: Akdogan,Ozlem; Ersoy,Yasemin; Kuzucu,Ciğdem; Gedik,Ender; Togal,Turkan; Yetkin,Funda.
ABSTRACT The effectiveness of prevention bundles on the occurrence and mortality of ventilator associated pneumonia (VAP) was evaluated in many studies. However, the effectiveness of endotracheal tube with subglottic secretion drainage (ETT-SD) and cuff pressure monitorization in VAP bundles have not been adequately assessed. In this study, we aimed to evaluate the effectiveness of VAP bundle containing ETT-SD and cuff pressure monitorization. This was a prospective, controlled study that was carried out between March 2011 and April 2012 including intubated patients. The study was conducted at the Anesthesiology Intensive Care Unit 1 and 2 (10 beds each) in a 898-bed university hospital. Occurrence of VAP and compliance with the parameters of the VAP...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ventilator associated pneumonia; VAP prevention bundles; Subglottic secretion drainage; Cuff pressure monitorization.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000300276

Assessment of the effectiveness of the PPD-mallein produced in Brazil for diagnosing glanders in mules
Provedor de dados: 58
Autores: Silva,Karla Patrícia Chaves da; Takaki,Galba Maria de Campos; Silva,Leonildo Bento Galiza da; Saukas,Tomoe Noda; Santos,André Souza; Mota,Rinaldo Aparecido.
To assess the potency of the PPD-mallein produced in Brazil, five animals were from a property identified as a focus of glanders. These animals had suggestive clinical signs of the disease and the other five, from a property free from glanders, showed no clinical signs and were serology negative (control group). PPD-mallein from Burkholderia mallei was obtained by precipitation with trichlo-roa-cetic acid and ammonium sulfate. The animals were inoculated according to the criteria established by Department of Agriculture, Livestock and Supply (MAPA) for the diagnosis of glanders. After 48 h of application of PPD-mallein, there was swelling in the area of application, presence of ocular secretion and tears in sick animals. The control group showed no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mallein test; Equus asinus; Diagnosis.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100027

Assessment of the efficiency in trapping North American mink (Neovison vison) for population control in Patagonia
Provedor de dados: 97
Autores: Medina-Vogel,Gonzalo; Barros,Macarena; Monsalve,Rene; Pons,Daniel J.
BACKGROUND: Introduced species can have a major negative impact on biodiversity; an example is the American mink, which was introduced in the 1930s in Patagonia. While there is a consensus that reversing alien mustelids continental scale invasions remains unfeasible, there is little consensus, given a maximum cost or investment, on the feasibility and efficiency of region-wide control or eradication. Thus, our goal was to provide information about efficiency for mink control in Patagonia METHODS: Between January 2009 and February 2013 this study was conducted in ten study sites (4 km to 15 km long) between 39°S to 45°S latitude. Minks were trapped using cage traps operated by two trappers. We estimated the population density at each study site assuming...
Tipo: Journal article
Palavras-chave: American mink; Trapping efficiency; Control; Population modeling.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2015000100009

ASSESSMENT OF THE EXTENT AND SUCCESS OF LEAFY SPURGE BIOLOGICAL CONTROL AGENTS
Provedor de dados: 31
Autores: Hodur,   Nancy M.; Leistritz,   F. Larry; Bangsund,   Dean A.
Leafy spurge is an exotic, noxious, perennial weed which is widely established in the north central United States and is an especially serious problem in the northern Great Plains.  In 1997, the Agricultural Research Service and the Animal and Plant Health Inspection Service of the U.S. Department of Agriculture (USDA), initiated a major Integrated Pest Management (IPM) research and demonstration project, TEAM Leafy Spurge (TLS), to develop and demonstrate ecologically based IPM strategies that can produce effective, affordable leafy spurge control.  A key component of the project was to expand the use of biological control (biocontrol) agents, specifically flea beetles.  To assess the level of insect establishment and the level of current and perceived...
Tipo: Working or Discussion Paper
Palavras-chave: Leafy spurge; Biological control; Apthona lacertosa/czwalinae; Flea beetle; Noxious weeds; Weed management; Resource /Energy Economics and Policy.
Ano: 2004
URL: http://purl.umn.edu/23643

Assessment of the nitrification process in a culture of pacific white shrimp, using artificial substrate and bacterial inoculum in a biofloc technology system (BFT)
Provedor de dados: 65
Autores: Santos,Nathalia Brenda Veiga dos; Furtado,Plínio Schmidt; César,Dionéia Evangelista; Wasielesky Junior,Wilson.
ABSTRACT:  Litopenaeus vannamei is the most cultured marine shrimp in all types of systems including the Bioflocs Technology System (BFT). Bioflocs are formed by microorganisms, among these, autotrophic bacteria are responsible for the nitrification process. This study aimed to identify and promote the development of nitrifying bacteria by adding artificial substrates and biofloc inoculum in L. vannamei culture in a BFT system. The experiment consisted of four treatments with three replics (4x3) as follows: (1) Control: clear water in which bioflocs were formed; (2) IN (10%): clear water with biofloc inoculum (10%); (3) IB: clear water with substrate (immature “bioballs”); and (4) MB: clear water with mature “bioballs” inoculum from a recirculation system....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heterotrophic bacteria; Nitrifying bacteria; “bioballs”; Bioflocs; FISH (Fluorescent in situ Hybridization).
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000600651

Assessment of the predatory capacity on mosquito larvae of Jenynsia multidentata (Anablepidae) in presence of vegetation under laboratory conditions
Provedor de dados: 76
Autores: Garcia,Maria I.; Murúa,Albérico F.; Díaz-Nieto,Leonardo M.; Acosta,Juan C.; Rios,Claudia de Los; Cano,Florencia A.; Blanco,Graciela M.
ABSTRACT Larvivorous fish have been studied as potential biocontrol agents of mosquito larvae and pupae through their trophic interactions. The use of native ﬁsh for mosquito control may have beneﬁts for both aquatic biodiversity and human health. Evaluating the effect of vegetation on the predatory efficacy is fundamental to determine if this species can be used as a biocontrol agent. With the aim of evaluating Jenynsia multidentata (Jenyns, 1842) as a biocontrol agent of Culex pipiens Linnaeus, 1758, we tested its predatory capacity in the presence or absence of aquatic vegetation under laboratory conditions. Two independent experiments were conducted. Larval consumption at a density of 60 larvae (6 larvae/l) was significantly reduced with the vegetation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biocontrol agents; Culex larvae; Larvae density; Consumption rate.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100211

Assessment of the Socio-Economic Impact of Late Blight and State of the Art of Management in European Organic Potato Production Systems
Provedor de dados: 21
Autores: Tamm, L.; Smit, A.B.; Hospers, M.; Janssens, S.R.M.; Buurma, J.S.; Molgaard, J.-P.; Laerke, P.E.; Hansen, H.H.; Hermans, A.; Boedker, L.; Bertrand, C.; Lambion, J.; Finckh, M.R.; Schüler, Chr.; Lammerts van Bueren, E.; Ruissen, T.; Nielsen, B.J.; Solberg, S.; Speiser, B.; Wolfe, M.S.; Phillips, S.; Wilcoxon, S.J.; Leifert, C.
In Europe, late blight, caused by Phytophthora infestans, is the most devastating disease affecting organic (and conventional) potato production. Under suitable environmental conditions the disease can spread rapidly and it can cause complete crop loss. The extent of damage due to late blight depends on several factors: in organic production systems these factors include climate, choice of variety, soil management and use of crop protection agents such as copper. Therefore, the extent of economic damage varies between European regions.    Council Regulation (EEC) No 2092/91, amended by Commission Regulation (EC) No 473/2002 of 15 March 2002 regulates the use of copper in organic agriculture. Copper has been the single most important control agent in...
Tipo: Book
Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2004
URL: http://orgprints.org/2936/1/tamm%2Det%2Dal%2D2004%2Dblight%2Dmop%2Doe.pdf

Assessment of the susceptibility to pests and diseases of 36 apple cultivars in four low-input organic orchards in France
Provedor de dados: 21
Autores: Parveaud, Claude-Eric; Gomez, Christelle; Libourel, Gilles; Romet, Lionel; Warlop, Francois; Simon, Sylvaine; Brun, Laurent; Pouzoulet, Didier; Delebecq, Alain; Tournant, Ludovic; Oste, Sandrine; Laurens, François.
One of the keystones of the organic orchard is the cultivar choice as one element of pest and disease control. However, few exhaustive data sets concerning the cultivar susceptibility to pests and diseases are available for growers. In order to identify cultivars adapted to organic production methods, the susceptibility to scab, aphids and powdery mildew and the agronomic properties of 36 cultivars were assessed in four French sites under different pedo-climatic conditions. Different levels of susceptibility to scab were observed for 23 scab Vf-resistant and 13 other cultivars. In the North of France where Vf resistance is overcome, the Vf cultivars displayed different levels of scab severity. A high variability in the susceptibility to aphids was observed...
Tipo: Conference paper, poster, etc.
Palavras-chave: Fruit and berries Breeding; Genetics and propagation.
Ano: 2010
URL: http://orgprints.org/17132/1/Ecofruit_Extended_abstract_Parveaud_et_al_2010.pdf

Assessment of the Toxicity of Sub-chronic Low and High Doses of the Bio-insecticide Spinosad on the Liver, Kidney and the Cerebellum in Male Albino Mice
Provedor de dados: 52
Autores: El-Naggar,Sabry A; Eltantawi,Hala; Ibrahim,Mahrous A; Alm-Eldeen,Abeer.
ABSTRACT Spinosad (SPD) is a highly selective insect control product. However, it was reported that SPD has toxicity toward other non-target organisms. This study was conducted to address the toxic effect of two sub-chronic low and high doses; 35 and 350 mg/kg SPD on some biochemical, histological and immunohistochemical parameters of the liver, kidney and cerebellum. Thirty-six male Swiss mice were divided into three groups of 12 mice each; first group (G1) served as a control, second group (G2) received a low sub-chronic dose of SPD that is equal to 35 mg/kg, and third group (G3) received a high sub-chronic dose of SPD that is equal to 350 mg/kg. The results showed that mice which were received 350 mg/kg SPD showed a significant decrease in the body...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bio-insecticide; Spinosad; Toxicity; Sub-chronic; Biochemical; Histological; Immunohistochemical; Alterations.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100306

Assessment of Trichogramma species (Hymenoptera: Trichogrammatidae) for biological control in cassava (Manihot esculenta Crantz)
Provedor de dados: 1
Autores: Soares, Marcus Alvarenga; Leite, Germano Leão Demolin; Zanuncio, José Cola; Ferreira, Cleidson Soares; Rocha, Silma Leite; Sá, Veríssimo Gibran Mendes de.
Cassava is the sixth most important crop in the world, and it is attacked by many pests, such as Erinnyis ello (L.) (Lepidoptera: Sphingidae). This lepidopteran pest has natural enemies that can efficiently control its population, such as Trichogramma spp. (Hymenoptera: Trichogrammatidae). The objective of this research was to assess the flight capacity, parasitism and emergence of Trichogramma pretiosum, T. marandobai and T. demoraesi and to select the most efficient species among them for biological control programs. The flight capacity of these species was assessed in test units consisting of a plastic PVC cylinder with a rigid, transparent plastic circle on the upper portion of the cylinder and an extruded polystyrene disk to close the bottom of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.01.02.02-8 Lepidoptera; Egg parasitoid; Erinnyis ello Entomologia Agrícola.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17744

Assessment of ventilatory neuromuscular drive in patients with obstructive sleep apnea
Provedor de dados: 56
Autores: Bittencourt,L.R.A.; Moura,S.M.T.; Bagnato,M.C.; Gregório,L.C.; Tufik,S.; Nery,L.E.
The presence of abnormalities of the respiratory center in obstructive sleep apnea (OSA) patients and their correlation with polysomnographic data are still a matter of controversy. Moderately obese, sleep-deprived OSA patients presenting daytime hypersomnolence, with normocapnia and no clinical or spirometric evidence of pulmonary disease, were selected. We assessed the ventilatory control and correlated it with polysomnographic data. Ventilatory neuromuscular drive was evaluated in these patients by measuring the ventilatory response (VE), the inspiratory occlusion pressure (P.1) and the ventilatory pattern (VT/TI, TI/TTOT) at rest and during submaximal exercise, breathing room air. These analyses were also performed after inhalation of a hypercapnic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ventilatory neuromuscular drive; Sleep apnea; Polysomnography; Ventilatory control.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000400005

Assessment of watermelon accessions for salt tolerance using stress tolerance indices
Provedor de dados: 64
Autores: Ekbic,Ercan; Cagıran,Cagri; Korkmaz,Kursat; Kose,Malik Arsal; Aras,Veysel.
ABSTRACT Salt stress is the most significant constraint for agricultural production in arid and semi-arid regions. Thus, genetically improved stress-tolerant varieties are needed for the future. The identification of salt-tolerant genotypes is the starting point for such breeding studies. This study was conducted to determine and assess the tolerance of different watermelon genotypes under saline conditions. Twenty-two watermelon genotypes and accessions were grown in pots with 3 kg of soil in four saline stress conditions (0 mmol kg-1 as the control, 25, 50 and 100 mmol kg-1 NaCl). The detrimental effects of salt stress on the plants were evident with increasing doses of NaCl. Stress indices calculated over the plant dry weights under the 100 mmol kg-1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrullus lanatus; Local varieties; Stress tolerance attributes; Tolerance for salt stress.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000600616

Assessment on Merger and Acquisition Risk of Agricultural Manufacturing Enterprises in China
Provedor de dados: 31
Autores: Bian,   Kuanjiang; Yang,   Weiwu.
Composition of merger and acquisition risk of agricultural manufacturing enterprises in China is analyzed, which is mainly strategic risk, external risk, transaction risk and integrated risk. And there are a total of 16 specific sources of risk. Concrete assessment methods for merger and acquisition risk of agricultural manufacturing enterprises are introduced. Firstly, set up the risk factor sets at first and second layers and divide merger and acquisition risk into 5 layers; establish risk assessment matrix according to the score by expert group. Secondly, determine the weights of the various risk factors by the ideology of information entropy. Finally, find out the subordinated vector of risk factor, construct risk assessment matrix, calculate the...
Tipo: Thesis or Dissertation
Palavras-chave: Merger and acquisition risk; Information entropy; Risk control; China; Industrial Organization; Risk and Uncertainty.
Ano: 2009
URL: http://purl.umn.edu/56349

ASSET ILLIQUIDITY, EXCLUSORY LAWS, AND LAND REFORM: THE CASE OF FOREIGN OWNERSHIIP OF HUNGARIAN AGRICULTURAL LAND
Provedor de dados: 31
Autores: Coakley,   Jaime; Gow,   Hamish R.
The ownership of agricultural land by foreign nationals is currently an extremely sensitive political issue in many of the Central and Eastern European (CEE) countries as they move towards European Union accession.  During the past decade economic reforms in CEE have resulted in substantial welfare declines within agricultural sectors across the region.  Generally, all agents within the agri-food chain have faced similar problems of decreasing terms of trade, increased competition, lack of financial resources and thin markets for both the sale of their output as well as for the sale of their underlying assets if so inclined (Swinnen and Macours, 2000).  As a result, farmers have found themselves in severe financial distress and forced to operate at...
Tipo: Conference Paper or Presentation
Palavras-chave: Land Economics/Use.
Ano: 2001
URL: http://purl.umn.edu/20709

Assimilation de données par méthode variationnelle utilisant l’adjoint d’un code de circulation côtière tridimensionnel
Provedor de dados: 5
Autores: Devenon, Jean-luc; Dekeyser, I; Leredde, Y; Lellouche, Jm.
The optimal control technique using an adjoint method is applied to fit the parameters of a 3-D primitive equation coastal model due to a data assimilation procedure. Two of the main unknowns of coastal modelling operations - open boundary conditions and turbulent mixing processes in stratified conditions - are successively considered. The aim of the boundary control procedure is to identify boundary forcing to ensure the best fit between data and model results by minimising a function that measures model and data discrepancies. A methodology for proceeding from the continuous to the discrete formulation of a control problem is given. The robustness of the method is tested for the typical barotropic case of a semi-enclosed basin Kelvin wave. The data...
Tipo: Text
Palavras-chave: Data assimilation; 3-D coastal circulation; Boundary conditions fitting; Adjoint method; Turbulence; Data assimilation; 3-D coastal circulation; Boundary conditions fitting; Adjoint method; Turbulence.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00322/43337/42890.pdf

Assimilation of SMOS L-band Wind Speeds: Impact on Met Office Global NWP and Tropical Cyclone Predictions
Provedor de dados: 5
Autores: Cotton, J.; Francis, P.; Heming, J.; Forsythe, M.; Reul, Nicolas; Donlon, C.
A new generation of L-band sensors, such as ESA's Soil Moisture Ocean Salinity (SMOS) mission, have the capability to provide information on the ocean-surface wind speed under high wind and rain conditions. In this study we evaluate the use of SMOS wind speeds within Met Office numerical weather prediction (NWP). Observation minus model background (O-B) departure statistics are used to investigate SMOS error characteristics, quality flags, and develop a quality control method. Observation errors and spatial correlation distances are estimated using a statistical method. Observing system experiments are performed to diagnose the impact of SMOS on NWP forecasts and analyses, including tropical cyclone (TC) predictions. The quality of SMOS retrievals appears...
Tipo: Text
Palavras-chave: SMOS; L-band wind speed; Data assimilation; Tropical cyclones; NWP.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00417/52868/53782.pdf

Associação de carboidrase e fitase em dietas valorizadas para poedeiras semipesadas - doi: 10.4025/actascianimsci.v34i3.12735
Provedor de dados: 2
Autores: Silva, Leandro Moreira; Instituto Federal Minas Gerais - Campus Bambuí; Geraldo, Adriano; Instituto Federal Minas Gerais - Campus Bambuí; Vieira Filho, Javer Alves; Instituto Federal Minas Gerais - Campus Bambuí; Machado, Luiz Carlos; Instituto Federal Minas Gerais - Campus Bambuí; Brito, Jerônimo Ávito Gonçalves de; Universidade Federal do Recôncavo Baiano; Bertechini, Antonio Gilberto; Universidade Fderal de Lavras.
O objetivo do estudo foi avaliar o efeito da associação de carboidrases e fitase em dietas de poedeiras. Foram utilizadas 300 poedeiras Isa Brown com 26 semanas, submetidas aos tratamentos: Controle Positivo: sem enzimas e valorização dos nutrientes; T2: valorização em 1,5 e 6% a EMA (kcal kg-1), do milho e o farelo de soja, respectivamente, e redução nos níveis nutricionais conforme a matriz nutricional para a fitase; T3: valorização da EMA do milho e o farelo de soja (idem T2) e redução nos níveis de cálcio e fósforo conforme matriz nutricional da fitase; T4: T2 suplementado com 100 g t-1 de carboidrases e 30 g t-1 de fitase; T5: T3 suplementado com 100 g t-1 de carboidrases e 30 g t-1 de fitase. Foi utilizado delineamento inteiramente casualizado, seis...
Tipo: Pesquisa de campo
Palavras-chave: 5.04.03.00-1 desempenho; Qualidade de ovos; Enzimas  energia metabolizável; Fósforo disponível; Valorização de dietas performance; Egg quality; Enzymes; Metabolizable energy; Disponible phosphorus; Valorization of diets.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/12735

Association among genetic predisposition, gut microbiota, and host immune response in the etiopathogenesis of inflammatory bowel disease
Provedor de dados: 56
Autores: Basso,P.J.; Fonseca,M.T.C.; Bonfá,G.; Alves,V.B.F.; Sales-Campos,H.; Nardini,V.; Cardoso,C.R.B.
Inflammatory bowel disease (IBD), which includes Crohn's disease (CD) and ulcerative colitis (UC), is a chronic disorder that affects thousands of people around the world. These diseases are characterized by exacerbated uncontrolled intestinal inflammation that leads to poor quality of life in affected patients. Although the exact cause of IBD still remains unknown, compelling evidence suggests that the interplay among immune deregulation, environmental factors, and genetic polymorphisms contributes to the multifactorial nature of the disease. Therefore, in this review we present classical and novel findings regarding IBD etiopathogenesis. Considering the genetic causes of the diseases, alterations in about 100 genes or allelic variants, most of them in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Inflammatory bowel disease; Crohn's disease; Ulcerative colitis; Immune response; Etiology; Microbiota.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000900727

Association between cervical lesion grade and micronucleus frequency in the Papanicolaou test
Provedor de dados: 74
Autores: Bueno,Caroline Tanski; Silva,Cláudia Maria Dornelles da; Barcellos,Regina Bones; Silva,Juliana da; Santos,Carla Rossana dos; Menezes,João Evangelista Sampaio; Menezes,Honório Sampaio; Rossetti,Maria Lucia Rosa.
The aim of this study was to evaluate the association between the frequency of micronuclei (MN) and the cellular changes detected in the conventional Papanicolaou test. One hundred and seventy-four Papanicolaou test smears with cellular changes were examined. MN screening was done in cytopathological smears by counting 1,000 cervical cells in a light microscope. MN frequencies were significantly higher in the group with cellular changes compared to the control group (p &lt; 0.001). The mean MN frequencies were 0.95 ± 1.12 (mean ± SD) in the control group (n = 223), 2.98 ± 1.20 in individuals with atypical squamous cells of undetermined significance (ASC-US) (n = 50), 4.04 ± 1.45 in cervical intraepithelial neoplasia (CIN) I (n = 52), 5.97 ± 1.83 in CIN II...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cervical cancer; Cervical lesions; Micronucleus; Papanicolaou test.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000400004

Association between handling stress in the corral and rabies antibody titers in selenium-supplemented cattle
Provedor de dados: 80
Autores: Reis,LSLS; Chiacchio,SB; Oba,E; Pardo,PE; Frazatti-Gallina,NM.
This study determined the correlation between serum cortisol levels and rabies antibody titers in cattle primo-vaccinated against rabies and supplemented with dietary selenium (Se). Sixty Nelore male calves (10 to 12 months old) received daily and individual dietary supplementation with 0, 3.6, 5.4 and 6.4 mg Se (groups Gc, G3.6, G5.4 and G6.4, respectively). The animals were vaccinated against rabies (day 0) and subjected to handling stress in the corral for 120 days. Blood sampling procedures were performed on days 0, 15, 30, 60, 90 and 120. Cortisol levels increased until day 90, but had dropped significantly by day 120 (P &lt; 0.01). Rabies antibody titers on days 30 and 90 were similar among Se-supplemented groups; in the control group, rabies...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Cattle; Cortisol; Stress; Rabies immune response; Selenium supplementation.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000400015

Association between HPV infection and prostate cancer in a Mexican population
Provedor de dados: 74
Autores: Medel-Flores,Olivia; Valenzuela-Rodríguez,Vania Alejandra; Ocadiz-Delgado,Rodolfo; Castro-Muñoz,Leonardo Josué; Hernández-Leyva,Sandra; Lara-Hernández,Gabriel; Silva-Escobedo,Jesús-Gabriel; Vidal,Patricio Gariglio; Sánchez-Monroy,Virginia.
Abstract The aim of this study was to evaluate the association between prostate cancer (PCa) and Human papillomavirus (HPV) infection in the Mexican population. We studied 356 paraffin-embedded tissues from unrelated Mexican men with PCa or benign prostatic hyperplasia (BPH), with the latter serving as control. HPV detection was performed by polymerase chain reaction (PCR) using universal primers, and viral genotypes were detected using sequencing or multiplex PCR. Light microscopy analyses enabled the identification of koilocytes in samples subsequently analyzed for HPV detection by in situ PCR and for p16-INK4A expression by immunohistochemistry. The results showed that high risk- (HR) HPVs were detected in 37/189 (19.6%) PCa specimens compared to 16/167...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HPV; Prostate; Cancer; Koilocytes.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000500781

Association between MFN2 gene polymorphisms and the risk and prognosis of acute liver failure: a case-control study in a Chinese population
Provedor de dados: 56
Autores: Wei,Y.-L.; Tian,Q.; Zhao,X.-X.; Qiu,G.-Z.; Xu,Y.
This study aimed to determine the role of mitofusin 2 (MFN2) gene polymorphisms in the risk and prognosis of acute liver failure (ALF). A total of 298 blood samples were collected from 138 ALF patients (case group) and 160 healthy participants (control group). Coagulation function, glutamic pyruvic transaminase (GPT), glutamic oxaloacetic transaminase (GOT), total bilirubin (TB), blood ammonia and lactic acid (LA) were measured. The predictive evaluation of MFN2 gene polymorphisms in the risk and prognosis of ALF patients was estimated using Kaplan-Meier survival analysis, haplotype analysis, binary logistic regression analysis and Cox regression analysis. Higher levels of GPT, GOT, TB, blood ammonia and LA were observed in ALF patients with the GG...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acute liver failure; MFN2; Gene polymorphism; Risk; Prognosis; Chinese population.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000600605

Association between osteoprotegerin gene polymorphisms and cardiovascular disease in type 2 diabetic patients
Provedor de dados: 74
Autores: Guo,Changlei; Hu,Fudong; Zhang,Shaoli; Wang,Yakun; Liu,Hengdao.
Osteoprotegerin (OPG) gene polymorphisms (T245G, T950C and G1181C) have been associated with osteoporosis and early predictors of cardiovascular disease. The aim of this study was to evaluate whether these polymorphisms contribute to cardiovascular disease (CVD) in type 2 diabetic patients. We performed a case-control study with 178 CVD subjects with diabetes and 312 diabetic patients without CVD to assess the impact of variants of the OPG gene on the risk of CVD. The OPG gene polymorphisms were analyzed by using the polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP). There was no significant association between the T245G and G1181C polymorphisms and CVD in the additive genetic model (OR = 0.96, 95% CI 0.64-1.45, p = 0.79;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cardiovascular disease; Osteoprotegerin; Polymorphism.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000200006

Association between polyclonal B cell activation and the presence of autoantibodies in mice infected with Yersinia enterocolitica O:3
Provedor de dados: 56
Eight-week old conventional female Swiss mice were inoculated intravenously with Yersinia enterocolitica O:3. A second group of normal mice was used as control. Five mice from each group were bled by heart puncture and their spleens were removed for spleen cell collection on the 3rd, 5th, 7th, 10th, 14th and 21st day after infection. Immunoglobulin-secreting spleen cells were detected by the isotype-specific protein A plaque assay. Total immunoglobulin levels were determined in mouse serum by single radial immunodiffusion and the presence of autoantibodies was determined by ELISA. We observed a marked increase in the total number of cells secreting immunoglobulins of all isotypes as early as on the 3rd day post-infection and the peak of secretion occurred...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Yersinia enterocolitica; Polyclonal activation; Experimental infection; Autoantibodies.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000300015

Association between polymorphism of the G-protein &amp;#946;3 subunit C825T and essential hypertension: an updated meta-analysis involving 36,802 subjects
Provedor de dados: 48
Autores: Zheng,Huan; Xu,Huifeng; Cui,Bin; Xie,Nanzi; Wang,Zhi; Luo,Ming.
Purpose: The G-protein &amp;#946;3-subunit gene C825T polymorphism (GNB3-C825T) has been reported to be associated with essential hypertension (EH), but results from previous studies are conflicting. The present study aimed at investigating the association between this polymorphism and risk of EH using a meta-analysis on the published studies. Materials and Methods: PubMed, Embase, CBM (China Biological Medicine Database), Wanfang and VIP databases were searched to identify eligible studies published in English and Chinese before March 2013. Data were extracted using standardized methods. The association was assessed by the odds ratio (OR) with 95% confidence intervals (CI). Begg's test was used to measure publication bias. Results: A total of 40...
Tipo: Journal article
Palavras-chave: GTP-Binding Proteins; Polymorphism; Genetic hypertension; Meta-Analysis.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000300007

Association between the concentration of protozoa and surrogates in effluents of the slow sand filtration for water treatment
Provedor de dados: 58
Autores: Heller,Léo; Vieira,Maria Berenice Cardoso Martins; Brito,Ludmila Ladeira Alves de; Salvador,Daniella Pedrosa.
Currently, a major challenge on producing high-quality drinking water is to monitor pathogens, such as Giardia, Cryptosporidium and enteric viruses. Due to limitations of the analytical methods available to detect pathogens in water, the research of surrogate indicators is an up-to-date subject. In view of these aspects, a pilot scale study was performed to evaluate the association between microbiological and physical indicators and the presence of Giardia spp and Cryptosporidium sp in the effluent of upflow and downflow slow sand filters. The results showed that efficient bacterial removal could indicate suitable protozoa removal. Although coliforms and Escherichia coli do not present the appropriate physiological profile for an "ideal" indicator, they...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cryptosporidium; Giardia; Slow sand filtration; Surrogate; Microbiological indicator.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200029

Association between the p53 arginine/arginine homozygous genotype at codon 72 and human papillomavirus E6/E7 mRNA expression
Provedor de dados: 55
Autores: Chuery,Ana Carolina Silva; Silva,Ismael Dale Cotrim Guerreiro da; Ribalta,Julisa Chamorro Lascasas; Speck,Neila Maria de Góis.
ABSTRACT  Objective: To evaluate the association between p53 polymorphisms and human papillomavirus (HPV) E6/E7 mRNA expression.  Methods: We analyzed 175 cervical samples from women aged 16-69 years old who were tested for HPV E6/E7 mRNA expression (NucliSENS® EasyQ® HPV). The samples were divided into three groups: positive (n = 75) those with positive HPV E6/E7 mRNA expression and positive high-risk HPV Hybrid Capture (HR-HC) test; negative (n = 52) those with negative HPV E6/E7 mRNA expression and positive HR-HC; and control (n = 48) those with negative HPV E6/E7 mRNA expression and negative HR-HC. The p53 polymorphisms at codons 11, 72, and 248 were evaluated through polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Human papillomavirus; Oncoproteins; Genetic polymorphisms; P53 gene; Arginine.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000300248

Association between Toll-like receptor 4 Asp299Gly polymorphism and coronary heart disease susceptibility
Provedor de dados: 56
Autores: Wu,B.W.; Zhu,J.; Shi,H.M.; Jin,B.; Wen,Z.C.
Published data on the association between Toll-like receptor 4 (TLR4) Asp299Gly polymorphism and coronary heart disease (CHD) susceptibility are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed. English-language studies were identified by searching PubMed and Embase databases (up to November 2016). All epidemiological studies were regarding Caucasians because no TLR4 Asp/Gly and Gly/Gly genotypes have been detected in Asians. A total of 20 case-control studies involving 14,416 cases and 10,764 controls were included in the meta-analysis. Overall, no significant associations were found between TLR4 Asp299Gly polymorphism and CHD susceptibility in the dominant model (OR=0.89; 95%CI=0.74 to 1.06; P=0.20)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Toll-like receptor 4; Polymorphism; Coronary heart disease; Meta-analysis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000900609

Association between toll-like receptor2 Arg677Trp and 597T/C gene polymorphisms and pulmonary tuberculosis in Zahedan, Southeast Iran
Provedor de dados: 55
Autores: Naderi,Mohammad; Hashemi,Mohammad; Hazire-Yazdi,Leylisadat; Taheri,Mohsen; Moazeni-Roodi,Abdolkarim; Eskandari-Nasab,Ebrahim; Bahari,Gholamreza.
BACKGROUND: It is well known that toll-like receptor 2 (TLR2) mediates responses of both innate and adaptive immunity to microbial pathogen, including mycobacteria. Single-nucleotide polymorphisms (SNPs) in the TLR2 gene that impair its function may be associated with the development of pulmonary tuberculosis (PTB). The aim of this study was to evaluate the possible association between TLR2 Arg677Trp and 597T/C polymorphisms and PTB in a sample of Iranian population. MATERIALS AND METHODS: This case-;control study was performed on 174 PTB and 177 healthy subjects. Tetra amplification refractory mutation system-polymerase chain reaction (TARMS-PCR) was used to detect the SNPs. RESULTS: There was no significant difference in the polymorphism of Arg677Trp of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tuberculosis; TLR2; Single nucleotide polymorphism.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000500002

Association between tumor necrosis factor alpha rs1800629 polymorphism and risk of osteoarthritis in a Chinese population
Provedor de dados: 56
Autores: Chen,Jie; Wu,Yu; Yu,Jiannong; Shen,Jinming.
Osteoarthritis (OA) is the most common degenerative disease affecting articular cartilage. Some studies indicate that tumor necrosis factor alpha (TNF-α) gene rs1800629 polymorphism was associated with OA risk among Caucasian populations. To examine the role of this candidate gene in Asian populations, we conducted a hospital-based case-control study involving 257 knee OA patients and 305 controls in a Chinese population. Genotyping was performed using a custom-by-design 48-Plex single nucleotide polymorphism (SNP) Scan™ kit. Our study indicated that the AA genotype of TNF-α rs1800629 polymorphism was associated with increased risk of OA. Subsequently, we conducted a meta-analysis and found that rs1800629 polymorphism increased the risk of OA in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: TNF-α; Osteoarthritis; Polymorphism; Meta-analysis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000800604

Association of adult weight gain and nonalcoholic fatty liver in a cross-sectional study in Wan Song Community, China
Provedor de dados: 56
Autores: Zhang,W.-J.; Chen,L.-L.; Zheng,J.; Lin,L.; Zhang,J.-Y.; Hu,X.
Our objective was to examine associations of adult weight gain and nonalcoholic fatty liver disease (NAFLD). Cross-sectional interview data from 844 residents in Wan Song Community from October 2009 to April 2010 were analyzed in multivariate logistic regression models to examine odds ratios (OR) and 95% confidence intervals (CI) between NAFLD and weight change from age 20. Questionnaires, physical examinations, laboratory examinations, and ultrasonographic examination of the liver were carried out. Maximum rate of weight gain, body mass index, waist circumference, waist-to-hip ratio, systolic blood pressure, diastolic blood pressure, fasting blood glucose, cholesterol, triglycerides, uric acid, and alanine transaminase were higher in the NAFLD group than...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: China; Diabetes; Insulin resistance; Lipidosis; Nonalcoholic fatty liver disease; Obesity.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000200151

Association of Alport's syndrome with HLA-DR2 antigen in a group of unrelated patients
Provedor de dados: 56
Autores: Donadi,E.A.; Voltarelli,J.C.; Paula-Santos,C.M.; Kimachi,T.; Ferraz,A.S.
A few family studies have evaluated HLA antigens in Alport's syndrome; however, there are no large population studies. In the present report, we studied 40 unrelated white patients with Alport's syndrome seen at the Unit of Renal Transplantation, Faculty of Medicine of Ribeirão Preto, São Paulo, Brazil. HLA-A, -B, -DR and -DQ antigens were typed using a complement-dependent microlymphocytotoxicity assay. A control white population (N = 403) from the same geographical area was also typed for HLA antigens. Although the frequencies of HLA-A and -B antigens of patients were not statistically different from controls, the frequency of HLA-DR2 antigen observed in patients (65%) was significantly increased in relation to controls (26%; P&amp;lt;0.001). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HLA antigens; Alport's syndrome; MHC; Immunogenetics.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000400010

Association of Bartonella spp bacteremia with Chagas cardiomyopathy, endocarditis and arrythmias in patients from South America
Provedor de dados: 56
Autores: Corrêa,F.G.; Pontes,C.L.S.; Verzola,R.M.M.; Mateos,J.C.P.; Velho,P.E.N.F.; Schijman,A.G.; Selistre-de-Araujo,H.S.
Infection with Bartonella spp may cause cardiac arrhythmias, myocarditis and endocarditis in humans. The aim of the present study was to evaluate a possible association between Bartonella spp bacteremia and endocarditis, arrhythmia and Chagas cardiomyopathy in patients from Brazil and Argentina. We screened for the presence of bacterial 16S rRNA in human blood by PCR using oligonucleotides to amplify a 185-bp bacterial DNA fragment. Blood samples were taken from four groups of subjects in Brazil and Argentina: i) control patients without clinical disease, ii) patients with negative blood-culture endocarditis, iii) patients with arrhythmias, and iv) patients with chronic Chagas cardiomyopathy. PCR products were analyzed on 1.5% agarose gel to visualize the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Human; PCR; Bartonella spp; Chagas disease; Endocarditis; Arrhythmia.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000700012

Association of chemical and mechanical weed control methods during the pre-harvest of coffee crops
Provedor de dados: 87
Autores: P. Ronchi,Cláudio.
Abstract  Background:  Weed control in the pre-harvest of the coffee crop is essential to enable mechanized coffee harvesting.  Objective: Testing the efficacy of pre-emergent herbicides, applied after brush shredder or desiccation operations, on the weed control during the coffee crop’s pre-harvest.  Methods:  Two separate trials were accomplished in commercial Coffea arabica crops in the Cerrado Mineiro Region. In the first one, oxyfluorfen and sulfentrazone were applied after either brush shredder or burndown operation; in the second, they were tested as a tank mixture with glyphosate.  Results:  In the first assay, the brush shredder use, associated to the rains that follow, stimulated a sharp weed infestation during the pre-harvest, which was not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arabica; Burndown; Herbicide; Integrated weed management.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100329

Association of dengue virus infection susceptibility with polymorphisms of 2'-5'-oligoadenylate synthetase genes: a case–control study
Provedor de dados: 55
Autores: Thamizhmani,Ramanathan; Vijayachari,Paluru.
Oligoadenylate synthetases play an important role in the immune response against dengue virus. Single nucleotide polymorphisms in the oligoadenylate synthetases genes are known to affect oligoadenylate synthetases activity and are associated with outcome of viral infections. Polymorphisms in the OAS1 SNPs (rs1131454), OAS2 SNPs (rs1293762, rs15895 and rs1732778) and OAS3 SNPs (rs2285932 and rs2072136) genes were studied using PCR followed by restriction fragment length polymorphism methods in 30 patients for dengue infection and 40 control group who have no documented evidence of symptomatic dengue. An increase in the frequency of OAS2 gene rs1293762 SNP G/T heterozygotes (p = 0.012), decrease in the frequency of SNP G/G homozygotes (p = 0.005) and...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Dengue; 2'-5'-Oligoadenylate synthetase; Polymorphisms; Genotypes.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000500548

Association of glycemic control with progression of diabetic retinopathy in type 2 diabetes mellitus patients in Malaysia
Provedor de dados: 60
Autores: Huri,Hasniza Zaman; Huey,Chua Chew; Mustafa,Norasyikin; Mohamad,Nor Fadhilah; Kamalden,Tengku Ain.
Abstract The risk of having microvascular complication is high among Type 2 Diabetes Mellitus (T2DM) patients. However, factors associated with the glycemic control and progression of diabetic retinopathy (DR) in T2DM patients is limited. This study aims to determine association between anti-diabetic agents, glycemic control and progression of diabetic retinopathy in a Malaysian population. A retrospective study conducted in a tertiary teaching hospital in Malaysia, from January 2009 until March 2014. This study enrolled 104 patients aged 40-84 years, with a mean age 63.12 ± 9.18 years. patients had non-proliferative diabetic retinopathy (NPDR, 77%) and 35% had proliferative diabetic retinopathy (PDR). Diabetic macula edema (DME) was present in 20% of NPDR...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Type 2 Diabetes Mellitus; Anti-diabetic agents; Microvascular complication; Diabetic macula edema; Diabetic retinopathy; Malaysia.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000200608

Association of homocysteine and methylene tetrahydrofolate reductase (MTHFR C677T) gene polymorphism with coronary artery disease (CAD) in the population of North India
Provedor de dados: 74
Autores: Tripathi,Rajneesh; Tewari,Satyendra; Singh,Prabhat Kumar; Agarwal,Sarita.
The implications of the methylene tetrahydrofolate reductase (MTHFR) gene and the level of homocysteine in the pathogenesis of coronary artery disease (CAD) have been extensively studied in various ethnic groups. Our aim was to discover the association of MTHFR (C677T) polymorphism and homocysteine level with CAD in north Indian subjects. The study group consisted of 329 angiographically proven CAD patients, and 331 age and sex matched healthy individuals as controls. MTHFR (C677T) gene polymorphism was detected based on the polymerase chain reaction and restriction digestion with HinfI. Total homocysteine plasma concentration was measured using immunoassay. T allele frequency was found to be significantly higher in patients than in the control group. We...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Angiography; CAD; Homocysteine; MTHFR polymorphism.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200004

Association of killer cell immunoglobulin-like receptor polymorphisms with chronic hepatitis C and responses to therapy in Brazil
Provedor de dados: 74
Autores: Vasconcelos,Janaina Mota de; Móia,Lizomar de Jesus Maués Pereira; Amaral,Ivanete do Socorro Abraçado; Miranda,Esther Castello Branco Mello; CicaliseTakeshita,Louise Yukari; Oliveira,Layanna Freitas de; Mendes,Lilian de Araújo Melo; Sastre,Danuta; Tamegão-Lopes,Bruna Pedroso; Pedroza,Larysse Santa Rosa de Aquino; Santos,Sidney Emanuel Batista dos; Soares,Manoel do Carmo Pereira; Araújo,Marialva Tereza Ferreira de; Bandeira,Camila Lucas; Silva,Adriana Maria Paixão de Sousa da; Medeiros,Zilene Lameira de; Sena,Leonardo; Demachki,Samia; Santos,Eduardo José Melo dos.
Soroprevalence for Hepatitis C virus is reported as 2.12% in Northern Brazil, with about 50% of the patients exhibiting a sustained virological response (SVR). Aiming to associate polymorphisms in Killer Cell Immunoglobulin-like Receptors (KIR) with chronic hepatitis C and therapy responses we investigated 125 chronic patients and 345 controls. Additionally, 48 ancestry markers were genotyped to control for population stratification. The frequency of the KIR2DL2 and KIR2DL2+HLA-C Asp80 gene and ligand was higher in chronic infected patients than in controls (p &lt; 0.0009, OR = 3.4; p = 0.001, OR = 3.45). In fact, KIR2DL3 is a weaker inhibitor of NK activity than KIR2DL2, which could explain the association of KIR2DL2 with chronic infection. Moreover,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HCV; KIR; HLA-C; Hepatitis C; KIR2DL2.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000100004

Association of long non-coding RNA MIAT and MALAT1 expression profiles in peripheral blood of coronary artery disease patients with previous cardiac events
Provedor de dados: 74
Autores: Toraih,Eman A.; El-Wazir,Aya; Alghamdi,Saleh A.; Alhazmi,Ayman S; El-Wazir,Mohammad; Abdel-Daim,Mohamed M.; Fawzy,Manal S.
Abstract Long non-coding RNAs (lncRNAs) are implicated in various cellular and pathological processes. Two lncRNAs, myocardial infarction-associated transcript (MIAT) and metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), may be involved in the pathogenesis of coronary artery disease (CAD). Here, we aimed to determine the relative circulating levels of MIAT and MALAT1 in 110 stable CAD patients and 117 controls and to correlate their levels with the clinical and laboratory data. Peripheral blood expression levels were quantified by Real-Time qPCR. The median MIAT expression level in CAD patients was significantly 12-fold higher than controls (p&lt;0.001). Otherwise, the median MALAT1 expression level was comparable in patient and control...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CAD; LncRNA; MALAT1; MIAT; Real-time qPCR.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000400509

Association of Mechanical and Chemical Methods for Cotton Stalk Destruction
Provedor de dados: 87
Autores: FRANCISCHINI,A.C.; CONSTANTIN,J.; MATTE,W.D.; OLIVEIRA JR.,R.S.; RIOS,F.A.; MACHADO,F.G.
ABSTRACT: The destruction of cotton stalks after harvesting is a prophylactic measure aimed at reducing the population of insects and disease inoculants that may remain in the crop residues and remaining cotton plants. The objective of this work was to evaluate integrated methods of management of the cotton stalks, combining mechanical and chemical control, to promote the eradication of cotton stalks. A 7x5 factorial experiment was installed where seven different methods of mechanical control of cotton stalk and five herbicide treatments were tested. The percentage of control (visual scale of 0 to 100%) and the number of plants regrowth per meter were evaluated at 14, 28 and 50 days after herbicide application treatment. At the end of the experiment, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gossypium hirsutum; Herbicides; Integrated management; Host-free period.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100162

Association of nicotinic acetylcholine receptors with central respiratory control in isolated brainstem-spinal cord preparation of neonatal rats
Provedor de dados: 48
Autores: HATORI,EIKI; SAKURABA,SHIGEKI; KASHIWAGI,MASANORI; KURIBAYASHI,JUNYA; TSUJITA,MIKI; HOSOKAWA,YUKI; TAKEDA,JUNZO; KUWANA,SHUN-ICHI.
Nicotine exposure is a risk factor in several breathing disorders Nicotinic acetylcholine receptors (nAChRs) exist in the ventrolateral medulla, an important site for respiratory control. We examined the effects of nicotinic acetylcholine neurotransmission on central respiratory control by addition of a nAChR agonist or one of various antagonists into superfusion medium in the isolated brainstem-spinal cord from neonatal rats. Ventral C4 neuronal activity was monitored as central respiratory output, and activities of respiratory neurons in the ventrolateral medulla were recorded in whole-cell configuration. RJR-2403 (0.1-10mM), alpha4beta2 nAChR agonist induced dose-dependent increases in respiratory frequency. Non-selective nAChR antagonist mecamylamine...
Tipo: Journal article
Palavras-chave: Brainstem-spinal cord; Neonatal rat; Inspiratory neuron; Preinspiratory neuron; Nicotinic acetylcholine receptor.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200014

Association of NOS3 gene variants and clinical contributors of hypoxic-ischemic encephalopathy
Provedor de dados: 56
Autores: Kuzmanić Šamija,R.; Primorac,D.; Rešić,B.; Pavlov,V.; Čapkun,V.; Punda,H.; Lozić,B.; Zemunik,T.
The aim of this study was to analyze the association of different clinical contributors of hypoxic-ischemic encephalopathy with NOS3 gene polymorphisms. A total of 110 children with hypoxic-ischemic encephalopathy and 128 control children were selected for this study. Association of gender, gestational age, birth weight, Apgar score, cranial ultrasonography, and magnetic resonance imaging findings with genotypic data of six haplotype-tagging single nucleotide polymorphisms and the most commonly investigated rs1800779 and rs2070744 polymorphisms was analyzed. The TGT haplotype of rs1800783, rs1800779, and rs2070744 polymorphisms was associated with hypoxic-ischemic encephalopathy. Children with the TGT haplotype were infants below 32 weeks of gestation and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clinical contributors; Hypoxic-ischemic encephalopathy; NOS3 gene polymorphisms.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014001000869

Association of polymorphisms at the ADIPOR1 regulatory region with type 2 diabetes and body mass index in a Brazilian population with European or African ancestry
Provedor de dados: 56
Autores: Yeh,E.; Kimura,L.; Errera,F.I.V.; Angeli,C.B.; Mingroni-Netto,R.C.; Silva,M.E.R.; Canani,L.H.S.; Passos-Bueno,M.R.
Association studies between ADIPOR1 genetic variants and predisposition to type 2 diabetes (DM2) have provided contradictory results. We determined if two single nucleotide polymorphisms (SNP c.-8503G&gt;A and SNP c.10225C&gt;G) in regulatory regions of ADIPOR1 in 567 Brazilian individuals of European (EA; N = 443) or African (AfA; N = 124) ancestry from rural (quilombo remnants; N = 439) and urban (N = 567) areas. We detected a significant effect of ethnicity on the distribution of the allelic frequencies of both SNPs in these populations (EA: -8503A = 0.27; AfA: -8503A = 0.16; P = 0.001 and EA: 10225G = 0.35; AfA: 10225G = 0.51; P &lt; 0.001). Neither of the polymorphisms were associated with DM2 in the case-control study in EA (SNP c.-8503G&gt;A: DM2...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Association study; Adiponectin receptors; Type 2 diabetes; Polymorphism for ancestry-admixture mapping; HDL cholesterol; Association of ADIPOR1 with DM2.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000600005

Association of polymorphisms in the heparanase gene (HPSE) with hepatocellular carcinoma in Chinese populations
Provedor de dados: 74
Autores: Yu,Lixia; Zhang,Xiaoai; Zhai,Yun; Zhang,Hongxing; Yue,Wei; Zhang,Xiumei; Wang,Zhifu; Zhou,Hong; Zhou,Gangqiao; Gong,Feng.
Abstract Heparanase activity is involved in cancer growth and development in humans and single nucleotide polymorphisms (SNPs) in the heparanase gene (HPSE) have been shown to be associated with tumors. In this study, we investigated whether SNPs in HPSE were a risk factor for hepatocellular carcinoma (HCC) by undertaking a comprehensive haplotype-tagging, case-control study. For this, six haplotype-tagging SNPs (htSNPs) in HPSE were genotyped in 400 HCC patients and 480 controls by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. A log-additive model revealed significant correlations between the HPSE polymorphisms rs12331678 and rs12503843 and the risk of HCC in the overall samples (p = 0.0046 and p = 0.0055). When...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genetic association; Heparanase; Hepatocellular carcinoma; HPSE gene; PCR-RFLP.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000500743

Association of PRKAA1 gene polymorphisms with chronic hepatitis B virus infection in Chinese Han population
Provedor de dados: 55
Autores: Yuan,Jun; Zhang,Yan; Yan,Fu-tang; Zheng,Xiao.
ABSTRACT  Objective: Studies have indicated that AMPK play critical roles in the regulation of innate immunity and inflammatory responses. However, the role of the polymorphisms of PRKAA1 gene in immune-response to infectious organisms remains unknown. To evaluate the potential role of PRKAA1/AMPKα1 in the immune-response to HBV, we conducted this case-control study.  Methods: We recruited 276 patients (145 men and 131 women; average age, 51.6 years) with chronic HBV infection (CHB) and 303 healthy controls (166 men and 137 women; average age, 54.2 years). All the subjects were unrelated individuals of Chinese Han Population. Three SNPs of PRKAA1gene were tested.  Results: Rs1002424 polymorphism showed significant difference in the allele frequencies, but...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: HBV; PRKAA1 gene; SNP; Association study.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000600564

Association of recombinant bovine somatotropin (rBST) with equine chorionic gonadotropin (eCG) on antral follicle count and oocyte production in Holstein and Tabapuã heifers
Provedor de dados: 96
Autores: Morais,Hévea de; Spuri,Renata; Gonçalves,Tarcísio de Moraes; Carvalho,Rafaela Rodrigues de; Andrade,Renato Campos; Pinto,Tássia Louregiani Carvalho; Souza,José Camisão de.
The objective of this study was to investigate whether the use of rbST and eCG prior to ultrasound-guided follicular aspiration (OPU) improves oocyte yield and quality in Tabapuã and Holstein heifers. The study was conducted in two phases, 20 days apart, in a change-over design. The dominant follicle was ablated two days (D-2) before two treatments: stimulation (6 Holstein and 8 Tabapuã), 500 mg of rbST (Boostin®) on D0 and 500 IU of eCG (Folligon) on D2; and control (6 Holstein and 8 Tabapuã), in which heifers received injections of the excipient. Heifers were aspirated on D4. Oocytes were subjected to a well established commercial in vitro embryo production protocol (Vitrogen®) and embryos were evaluated seven days after fertilization. There was an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Embryo; Hormonal stimulation; Ovary.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001200004

Association of S100B polymorphisms and serum S100B with risk of systemic lupus erythematous in a Chinese population
Provedor de dados: 74
Autores: Lu,Yulan; Huang,Huatuo; Liu,Chunhong; Zeng,Yonglong; Wang,Rong; Wang,Chunfang; Wei,Yesheng; Lan,Yan.
Abstract The aim of this study was to investigate whether the S100B polymorphisms are associated with systemic lupus erythematous (SLE) in a Chinese population. A total of 313 SLE patients and 396 control subjects were enrolled in the present study. The genotypes of three SNPs (rs9722, rs881827 and rs1051169) in S100B gene were detected by single base extension polymerase chain reaction (SBE-PCR). Serum S100B levels were determined by enzyme-linked immunosorbent assay (ELISA). Rs1051169 was associated with an increased risk of SLE (C vs. G: adjusted OR=1.46, 95% CI, 1.18-1.80, p=0.001; CC vs. GG: adjusted OR=1.99, 95% CI, 1.32-3.02, p=0.001; CC+GC vs. GG: adjusted OR=1.54, 95% CI, 1.13-2.11, p=0.007; CC vs. GC+GG: adjusted OR=1.67, 95% CI, 1.16-2.42,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: S100B; Polymorphisms; Serum levels; SLE; Neurologic disorder.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000300321

Association of serum total bilirubin levels with diastolic dysfunction in heart failure with preserved ejection fraction
Provedor de dados: 48
Autores: Zheng,Huan; Li,Ye; Xie,Nanzi.
BACKGROUND: Left ventricular diastolic dysfunction is one of the main characteristics of heart failure patients with a preserved left ventricular ejection fraction. As bilirubin is regarded as an important endogenous antioxidant molecule, serum total bilirubin levels were compared between heart failure patients with a preserved left ventricular ejection fraction and normal controls in this study. We recruited 327 heart failure patients with a preserved left ventricular ejection fraction and 200 healthy controls. Patients were divided into 4 subgroups by their comprehensive echocardiographic manifestations, 1-mild, 2-moderate, 3-severe (reversible restrictive), 4-severe (fixed restrictive). Total bilirubin levels were compared using stepwise multiple...
Tipo: Journal article
Palavras-chave: Bilirubin; Heart failure; Diastolic dysfunction; Echocardiography.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100007

Association of T174M polymorphism of angiotensinogen gene with essential hypertension: a meta-analysis
Provedor de dados: 74
Autores: Liao,Xiaoyang; Yang,Zhiyi; Peng,Daqing; Dai,Hua; Lei,Yi; Zhao,Qian; Han,Yanbing; Wang,Weiwen.
The association between T174M polymorphism of angiotensinogen gene and essential hypertension risk remains controversial. We herein performed a meta-analysis to achieve a reliable estimation of their relationship. All the studies published up to May 2013 on the association between T174M polymorphism and essential hypertension risk were identified by searching the electronic repositories PubMed, MEDLINE and EMBASE, Springer, Elsevier Science Direct, Cochrane Library and Google Scholar. Data were extracted and pooled odds ratios (ORs) with 95% confidence intervals (95% CIs) were calculated. Ultimately, nine eligible studies, including 2188 essential hypertension cases and 2459 controls, were enrolled in this meta-analysis. No significant associations were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Essential hypertension; Case-control study; T174M; Polymorphism; Meta-analysis.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000400001

Association of the 894G&gt;T polymorphism of the endothelial constitutive nitric oxide synthase gene with unstable angina
Provedor de dados: 56
Autores: Iturry-Yamamoto,G.R.; Moriguchi,E.H.; Zago,A.C.; Alho,C.S.; Zago,A.J.
The 894G&gt;T polymorphism of the endothelial constitutive nitric oxide synthase gene consists of the substitution of a guanine base by a thymine at the 894th nucleotide of the gene. An association of this polymorphism with acute coronary syndromes has been described, only when in combination with other polymorphisms of this gene. The aim of the present study was to search for an association between this polymorphism and unstable angina in a southern Brazilian population. In a case-control study, 156 patients (group 1 (N = 83): unstable angina, group 2 (N = 73): stable angina) were genotyped by PCR and digestion of the product. Univariate analysis demonstrated that the minimal luminal diameter and the degree of stenosis of the culprit lesion differed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitric oxide synthase; Gene; Polymorphism; Unstable angina; Coronary.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000400005

Association of the infusion of Heteropterys aphrodisiaca and endurance training brings spermatogenetic advantages
Provedor de dados: 48
Autores: Gomes,Marcos L M; Monteiro,Juliana C; Freitas,Karine M; Sbervelheri,Mariana M; Dolder,Heidi.
The species Heteropterys aphrodisiaca is commonly used as a stimulant by popular medicine in the Cerrado, a savanna-like biome, Brazil. Recent studies have proved its protective effects on testes of animals submitted to treatment using Cyclosporine A, as well as its stimulus effect in increasing testosterone secretion. Therefore, the present study was designed to analyze whether the association of the plant infusion and endurance exercise could potentiate the stimulating effect. The animals were separated into 4 groups: two control (sedentary and trained) receiving water and two treated (sedentary and trained) receiving the plant infusion daily (104mg/day). The proportion of the seminiferous tubule compartment and interstitium was analyzed. Within the...
Tipo: Journal article
Palavras-chave: Germ cells; Phytotherapy; Seminiferous epithelium; Spermatogenesis; Testosterone.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000300004

Association of XRCC1 Arg399GIn and Tp53 Arg72Pro polymorphisms and increased risk of uterine leiomyoma - A case-control study
Provedor de dados: 74
Autores: Yaghmaei,Minoo; Salimi,Saeedeh; Namazi,Lida; Farajian-Mashhadi,Farzaneh.
Abstract The aim of present study was to investigate the role of the X-ray repair cross-complementing protein1 (XRCC1) and Tumor protein p53 (Tp53) polymorphisms in Uterine Leiomyoma (UL) susceptibility in southeastern Iran. This case control study was performed on 139 women with UL and 149 age, BMI and ethnicity matched healthy women. All women were genotyped for the XRCC1 Arg399Gln, XRCC1 Arg194Trp and Tp53 Arg72Pro polymorphisms. The frequency of Tp53 72 Pro/Pro genotype was significantly higher in UL women compared to controls. The risk of UL was 1.5 fold higher in women with the Pro/Pro genotype (OR, 1.5 [95% CI, 1.1 to 2.1], p = 0.012). Moreover, the frequency of the Pro allele was significantly higher in the UL women. Although the frequency of XRCC1...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Uterine leiomyoma; Tp53; XRCC1; Polymorphism.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000400444

Association studies between -1185A/G von Willebrand factor gene polymorphism and coronary artery disease
Provedor de dados: 56
Autores: Simon,D.; Paludo,C.A.; Ghisleni,G.C.; Manfroi,W.C.; Roisenberg,I.
High levels of von Willebrand factor (vWF) have been associated with cardiovascular disease. The A allele of the -1185A/G polymorphism in the 5'-regulatory region of the vWF gene was associated with the highest plasma vWF levels in a normal population. To examine the association between -1185A/G polymorphism and coronary artery disease (CAD), 173 Brazilian Caucasian subjects submitted to coronary angiography were studied. Of these, 57 (33%) had normal coronary arteries (control group) and 116 (67%) had CAD (patient group). Plasma vWF levels were higher in patients (145 U/dl) than in controls (130 U/dl), but the differences were significant only for O blood group subjects. Polymerase chain reaction amplification of the 864-bp vWF promoter region followed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Von Willebrand factor; Coronary artery disease; DNA polymorphisms; Risk factor.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000600005

Association study of AFF1 rs340630 polymorphism with genetic susceptibility to rheumatoid arthritis in Chinese population
Provedor de dados: 56
Autores: Sun,Qing-Qing; Hua,Dong-Jin; Huang,Si-Chao; Cen,Han; Zhou,Li; Shao,Song.
This study was performed to examine whether the AF4/FMR2 family, member 1 (AFF1) rs340630 polymorphism is involved in the genetic background of rheumatoid arthritis (RA) in a Chinese population. Two different study groups of RA patients and controls (328 RA patients and 449 healthy controls in the first study group; 232 RA patients and 313 controls in the second study group) were included in our study. Overall, there was no significant difference in either genotype (P=0.71 and 0.64 in the first and second study group, respectively) nor allele (in the first study group: A vs G, P=0.65, OR=1.05, 95%CI=0.85–1.29; in the second study group: G vs A, P=0.47, OR=1.10, 95%CI=0.86–1.40) frequencies of AFF1 rs340630 polymorphism between RA patients and controls. Our...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rheumatoid arthritis; AFF1; Polymorphism; Chinese.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000700606

Associations between CD36 gene polymorphisms and susceptibility to coronary artery heart disease
Provedor de dados: 56
Autores: Zhang,Y.; Ling,Z.Y.; Deng,S.B.; Du,H.A.; Yin,Y.H.; Yuan,J.; She,Q.; Chen,Y.Q.
Associations between polymorphisms of the CD36 gene and susceptibility to coronary artery heart disease (CHD) are not clear. We assessed allele frequencies and genotype distributions of CD36 gene polymorphisms in 112 CHD patients and 129 control patients using semi-quantitative polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP) analysis. Additionally, we detected CD36 mRNA expression by real-time quantitative PCR, and we quantified plasma levels of oxidized low-density lipoprotein (ox-LDL) using an enzyme-linked immunosorbent assay (ELISA). There were no significant differences between the two groups (P&gt;0.05) in allele frequencies of rs1761667 or in genotype distribution and allele frequencies of rs3173798. The genotype...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coronary artery disease; CD36; Rs1761667; Rs3173798; Single nucleotide polymorphism; Ox-LDL.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014001000895

Associations between Cinara atlantica, its natural enemies and ants
Provedor de dados: 190
Autores: Penteado, Susete do Rocio Chiarello; Lazzari, Sonia Maria Noemberg; Reis Filho, Wilson; Nickele, Mariane Aparecida.
The study of the relationship between species or populations is an excellent tool to learn about ecological phenomena. Among the possible interaction between two species, it is highlighted the mutualism between ants and insects that produce honeydew. While honeydew is "garbage" for the aphids it can be a food source for ants. The type of interaction between aphids and their natural enemies, known as "intraguild predation" or predation of natural enemies that share the same prey is an interaction that occurs in aphid communities. The majority of natural enemies in this system interact asymmetrically according to differences in body size, feeding strategy and priorities of each species. In agroecosystems, the consequence of this relation becomes particularly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Symbionts  Predators  Parasitoids  Large pine aphid  Pinus taeda Simbiontes; Predadores  Parasitóides  Pulgão-gigante-do-pínus  Pinus taeda.
Ano: 2012
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/307

Associations Between Herbicides and Glyphosate in Agronomic Performance of RR2 Intact Soybean
Provedor de dados: 87
Autores: CESCO,V.J.S.; ALBRECHT,A.J.P.; RODRIGUES,D.M.; KRENCHINSKI,F.H.; ALBRECHT,L.P.
ABSTRACT: The Roundup Ready (RR) soybean was developed for weed control with the use of glyphosate. Some herbicide combinations with glyphosate has been used in weed control and some effects of this practice may be undesirable in the agronomic performance of RR soybean. The present study evaluated the agronomic performance of RR2 intact soybean applied with associations between herbicides and glyphosate at post-emergence, in two experiments conducted in two municipalities in the state of Paraná, Palotina and Marechal Cândido Rondon. This experiment consisted of seven treatments in a randomized block design with four replications, totaling 28 plots for each municipality. The cultivar used in both experiments was Monsoy 6210 Intact RR2 IPROTM. The variables...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Susceptibility; Selectivity; Phytotoxicity.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100212

Assuring Coherence between the Market-access and Livelihood Impact of Private Sustainability Standards
Provedor de dados: 21
Autores: Hoffmann, Ulrich; Grothaus, Frank.
Private sustainability standards (PSS) have been rather successful in facilitating access to the quickly growing international markets for such certified products. Many PSS have also been an effective tool in improving product quality, driving up the scale of production and easing the control of international supply chains, all elements that are of key importance for traders, processors and retail companies. The market-access impact has however not been in lock step with the income and livelihood impact at producer level, in particular for small-scale producers. The main challenge for PSS is how to scale up standard-compliant production, reaching beyond a relatively small number of larger, more developed and logistically better placed producers, aimed at...
Tipo: Working paper
Palavras-chave: Markets and trade Values; Standards and certification Policy environments and social economy.
Ano: 2015
URL: http://orgprints.org/29951/1/hoffmann-grothaus-2015-unfss-discussion-paper-6-final-28may.pdf

Asthma: where is it going?
Provedor de dados: 56
Autores: Faffe,D.S.
Asthma is characterized by reversible airway obstruction, airway hyperresponsiveness, and airway inflammation. Although our understanding of its pathophysiological mechanisms continues to evolve, the relative contributions of airway hyperresponsiveness and inflammation are still debated. The first mechanism identified as important for asthma was bronchial hyperresponsiveness. In a second step, asthma was recognized also as an inflammatory disease, with chronic inflammation inducing structural changes or remodeling. However, persistence of airway dysfunction despite inflammatory control is observed in chronic severe asthma of both adults and children. More recently, a potential role for epithelial-mesenchymal communication or transition is emerging, with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asthma; Epithelial-mesenchymal unit; Bronchial hyperresponsiveness; Remodeling.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000900001

Astroglial cells derived from lateral and medial midbrain sectors differ in their synthesis and secretion of sulfated glycosaminoglycans
Provedor de dados: 56
Autores: Onofre,G.R.; Werneck,C.C.; Mendes,F.A.; Garcia-Abreu,J.; Moura Neto,V.; Cavalcante,L.A.; Silva,L.C.F.
Astroglial cells derived from lateral and medial midbrain sectors differ in their abilities to support neuritic growth of midbrain neurons in cocultures. These different properties of the two types of cells may be related to the composition of their extracellular matrix. We have studied the synthesis and secretion of sulfated glycosaminoglycans (GAGs) by the two cell types under control conditions and ß-D-xyloside-stimulated conditions, that stimulate the ability to synthesize and release GAGs. We have confirmed that both cell types synthesize and secrete heparan sulfate and chondroitin sulfate. Only slight differences were observed between the proportions of the two GAGs produced by the two types of cells after a 24-h labeling period. However, a marked...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycosaminoglycans; Astrocytes; Neuron-glia interactions; Midbrain.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000200014

Asymmetric development of Cotyledons of Tomato Embryo:  Testing the prediction of Self-Organization
Provedor de dados: 17
Autores: Chalapathy  Reddy.
Developmental biologists have long strived to understand how organisms acquire shape and form. The architecture of the mature plant is established during embryogenesis. They have learned much about how gene expression controls the specification of cell type and about how cells interact with one another to coordinate such specific decisions. Far less is known about autocatalytic feedback flow of resource molecules regulating a plant and its parts, shape and form. Indeed, it has even been proposed that the development of shape is not under genetic control but rather is determined by physical forces. Asymmetric development of sinks that depend on common resource pool has been viewed as a consequence of autocatalytic feedback process of flow of resource units...
Tipo: Manuscript
Palavras-chave: Plant Biology.
Ano: 2009
URL: http://precedings.nature.com/documents/2989/version/1

Asymmetric intraguild predation of Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) on a native Coccinellidae guild
Provedor de dados: 92
Autores: Castro-Guedes,Camila Fediuk de; Almeida,Lúcia Massutti de; Moura,Mauricio Osvaldo.
Abstract Harmonia axyridis is an exotic species that can cause serious impacts on native biodiversity in areas where it is introduced to act as a biological control agent. This predator is often involved with intraguild predation, in most cases with aphids predators. Here, we report the results of experiments designed to understand the outcome of the invasion of H. axyridis on native coccinellid aphidophagous guilds using intraguild predation as a theoretical framework. Tests were conducted to determine the interactions between 1st and 4th instars larvae and H. axyridis adults, with Cycloneda sanguinea, Cycloneda pulchella, Eriopis connexa and Hippodamia convergens larvae, as well as eggs predation rate. Two treatments were used: absence and presence of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aphids; Biological control; Cinara atlantica; Invasive species; Non-target organisms; Predator.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262020000100202

Asymptotic viscoacoustic diffraction tomography of ultrasonic laboratory data: a tool for rock properties analysis
Provedor de dados: 5
Autores: Ribodetti, A; Operto, S; Virieux, J; Lambare, G; Valero, Hp; Gibert, D.
This paper presents an application of 2.5-D asymptotic viscoacoustic diffraction tomography to ultrasonic data recorded during a physically scaled laboratory experiment. This scaled experiment was used to test the reliability of our method when applied to a real data set to estimate the attenuation factor Q. Diffraction tomography relies on ray theory to compute the Green functions in a smooth background medium and on the Born approximation to linearize the relation between the scattered wavefield and the velocity and Q perturbations. The perturbations are inferred from the data by an iterative (linear) quasi-Newtonian algorithm. The inversion formula was specifically developed to account for the acquisition geometry designed in this study. The derivation...
Tipo: Text
Palavras-chave: Asymptotic method; Attenuation; Diffraction tomography; Rock properties; Ultrasonic seismic data.
Ano: 2000
URL: https://archimer.ifremer.fr/doc/00466/57770/60029.pdf

Athelia (Sclerotium) rolfsii in Allium sativum: potential biocontrol agents and their effects on plant metabolites
Provedor de dados: 42
Autores: CAVALCANTI,VYTÓRIA P.; ARAÚJO,NEILTON A.F.; SCHWANESTRADA,KÁTIA R.F.; PASQUAL,MOACIR; DÓRIA,JOYCE.
Abstract Garlic (Allium sativum L.) plays an important role in popular culture due to its dietary and medicinal uses. It is also used to produce a wide range of pharmacologically interesting molecules. Several pathogens affect garlic plants, especially Athelia (Sclerotium) rolfsii, a fungus that is widespread and causes large economic losses. It causes direct damage to crops and leads to plant stress, which induces secondary metabolite production in plants. The use of microorganisms as biocontrol agents may induce the production of beneficial metabolites in plants that will protect it and promote resistance to pathogen attack. In addition to suppressing disease, biological control agents may have elicitor effects that could induce an increase in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Phytopathogen; Yeast; Bacillus spp.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703949

Ätherische Öle als Repellentien gegen den Rapsglanzkäfer (Meligethes spp.).
Provedor de dados: 21
Autores: Daniel, Claudia.
Essential oils can have an impact on pollen beetle (Meligethes spp.). Lavender oil (Lavendula angustifolia) showed the highest repellency value in a previous laboratory study (Mauchline et al., 2005). However, lavender oil is one of the most expensive essential oils – a fact that could seriously hamper on-farm implementation of this strategy. To find a cheaper essential oil with comparable efficacy to lavender oil, we compared the essential oils of Mentha arvensis, Eucalyptus globulus, Melaleuca alternifolia, Citrus sinensis, Citrus paradisi, Citrus limon, Juniperus mexicana, Abies sibirica, Illicium verum, Gaultheria procumbens, Cymbopogon flexuosus, Syzygium aromaticum, and Litsea cubeba using a Y-tube-olfactometer. Essential oils were diluted 1:10 in...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Crop health; Quality; Protection.
Ano: 2015
URL: http://orgprints.org/26902/1/26902_daniel.pdf

Atherosclerosis and acute arterial thrombosis in rabbits: a model using balloon desendothelization without dietary intervention
Provedor de dados: 56
Acute thrombosis can be induced in rabbits by a triggering protocol using Russell's viper venom and histamine given after 8 months of a 1% cholesterol diet and balloon desendothelization. In the present study, we tested the hypothesis that aortic desendothelization performed 4 months before the triggering protocol without a high cholesterol diet is a highly effective and less expensive way of producing arterial atherosclerosis and thrombosis. Nineteen male New Zealand white rabbits on a normal diet were studied. The control group (N = 9) received no intervention during the 4-month observation period, while the other group (N = 10) was submitted to aortic balloon desendothelization using a 4F Fogarty catheter. At the end of this period, all animals were...
Palavras-chave: Endothelium; Histamine; Russell's viper venom; Coronary artery disease.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000300017

Atividade antifúngica e indução de resistência em trigo a Bipolaris sorokiniana por Artemisia camphorata - DOI: 10.4025/actasciagron.v25i2.2124
Provedor de dados: 1
Autores: Franzener, Gilmar; UNIOESTE; Stangarlin, José Renato; UNIOESTE; Schwan-Estrada, Kátia Regina Freitas; UEM; Cruz, Maria Eugênia Silva; UEM.
Com o objetivo de se realizar o controle alternativo de Bipolaris sorokiniana em plantas de trigo, extrato aquoso (EA) da planta medicinal Artemisia camphorata (cânfora) foi utilizado em bioensaios para avaliar seus efeitos fungitóxico (através da inibição do crescimento micelial, da esporulação e da germinação de esporos) e indutor de resistência. Utilizou-se EA em concentrações de 1%, 5%, 10%, 15%, 20%, 25% e 50%, autoclavado ou não, com ou sem adição de antioxidante (Na2SO3 - 0,25%). Para indução de resistência, plantas com 30 dias de idade receberam o EA através de aspersão e 24, 48 e 72 horas após os tratamentos, realizou-se a inoculação com uma suspensão de esporos do patógeno (1 x 104 conídios/ml). O extrato aquoso de cânfora a 50% causou a inibição...
Palavras-chave: 5.00.00.00-4    Ciências Agrárias resistência induzida; Controle alternativo; Cânfora; Mancha marrom do trigo 5.00.00.00-4    Ciências Agrárias.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2124

Atividade anti-helmíntica de plantas em frangos de corte naturalmente infectados com Ascaridia galli
Provedor de dados: 45
Autores: Fernandes,R.M.; Rodrigues,M.L.A.; Borba,H.R.; Fernandes,M.Z.L.C.M.; Amorim,A.
The anthelminthic activity of four plants - Allium sativum (garlic), Punica granatum (pomegranate), Tynnanthus labiatus (liana-carnation) and Cocus nucifera (coconut) with the activity of mebendazole - was compared. Seventy Hubbard chickens, naturally infected with Ascarídia galli, divided in 5 groups of 10 chichens plus a control group (not treated, n=20) were used in the experiment. The vegetable matter was used in the forms of aqueous extract, juice and triturated, administered by probe or incorporated to the diet, in the doses of 2, 3 and 10g/kg/day, for three days. A non parametric test was used to evaluate the anthelminthic effect of the plants. The eliminations of A. galli for the garlic, pomegranate, liana-carnation, coconut and mebendazole were:...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Frango; Plantas; Atividade anti-helmíntica; Ascaridia galli.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000800020

Atividade de glutationa S-transferase na metabolização de acetochlor, atrazine e oxyfluorfen em milho (Zea mays L.), sorgo (Sorghum bicolor L.) e trigo (Triticum aestivum L.) (Poaceae)
Provedor de dados: 3
Autores: Cataneo, Ana Catarina; UNESP; Chamma, Karina Luiz; UNESP; Ferreira, Leonardo César; UNESP; Déstro, Guilherme Fernando Gomes; UNESP; Carvalho, José Claudionir; UNESP; Novelli, Ethel Lourenzi Barbosa; UNESP.
Este experimento foi conduzido para avaliar a seletividade em plantas dos herbicidas acetochlor, atrazine e oxyfluorfen em relação à atividade da glutationa S-transferase (GST) em plantas de milho (Zea mays L.), sorgo (Sorghum bicolor L.) e trigo (Triticum aestivum L.) (Poaceae). A atividade da GST foi detectada às 24, 48 e 72 horas após as aplicações dos tratamentos. Os tratamentos do experimento consistiram de aplicação com água (controle), acetochlor (3 L.ha-1), atrazine (4 L.ha-1) e oxyfluorfen (1 L.ha-1). As maiores atividades de GST foram observadas na presença de acetochlor, principalmente às 48 horas após o tratamento. Esses aumentos foram 105, 148 e 118% em relação ao controle para milho, sorgo e trigo, respectivamente. É sugerido que a GST pode...
Palavras-chave: 2.00.00.00-6 Ciências Biológicas glutationa S-transferase; Atrazine; Acetochlor; Oxyfluorfen; Herbicidas; Seletividade 2.00.00.00-6 Ciências Biológicas.
Ano: 2002
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2366

Atividade fungitóxica de Momordica charantia L. no controle de Sclerotium rolfsii Sacc - DOI: 10.4025/actasciagron.v31i3.364
Provedor de dados: 1
Autores: Faria, Flaviana Andrade; UNESP, Ilha Solteira; Bueno, César Júnior; APTA; Papa, Marli de Fátima Stradioto; UNESP, Ilha Solteira.
O fungo Sclerotium rolfsii causa grandes perdas em algumas culturas econômicas. Por produzir estruturas de resistência (escleródios), este fungo é de difícil controle. Há escassez de novos ingredientes ativos eficientes para o controle deste patógeno.  Assim, o objetivo do presente trabalho foi verificar se existe atividade fungitóxica na planta Momordica charantia (melão-de-são-caetano), com potencial futuro para ser estudado no controle de S. rolfsii. Para isso, dois ensaios foram realizados, um in vitro (laboratório) e outro in vivo (câmara de crescimento). Em in vitro, escleródios do patógeno ficaram em contato com extratos hidroetanólico e aquoso de folhas e ramos de M. charantia e sem extrato por 7, 14, 21 e 28 dias. A sobrevivência dos escleródios...
Palavras-chave: 5.01.00.00-9    Agronomia extratos de plantas; Melão-de-são-caetano; Escleródios; Fungo fitopatogênico habitante do solo plants extract; Bitter gourd; Sclerotia; Soilborne phytopathogenic fungi.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/364

Atividade tóxica de isolados de Bacillus Thuringiensis a larvas de Aedes Aegypti (l.) (diptera: culicidae)
Provedor de dados: 82
Autores: Costa,Juliana R V da; Rossi,Juliana R; Marucci,Suzana C; Alves,Eliane C da C; Volpe,Haroldo X L; Ferraudo,Antonio S; Lemos,Manoel V F; Desidério,Janete A.
Aedes aegypti (L.), the main vector of dengue fever in Brazil, has been controlled with the use of massive chemical products, contributing to the development of resistance and decreasing the insect control efficiency. The control of dipterans with bioinsecticides based on Bacillus thuringiensis has been satisfactory, due to the production of insecticidal proteins denominated Cry (crystal), Cyt (cytolytic) toxins and Chi (chitinase), and to the synergistic effects among them. The present work aimed to select B. thuringiensis isolates efficient against A. aegypti larvae. A bacterial collection containing 1,073 isolates of B. thuringiensis, obtained from different locations of Brazilian territory, had the DNA isolated and submitted to PCR amplifications using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Cry; Cyt; Chitinase; Dengue fever.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000500015

Atlantic forcing of Western Mediterranean winter rain minima during the last 12,000 years
Provedor de dados: 5
Autores: Zielhofer, Christoph; Fletcher, William J.; Mischke, Steffen; De Batist, Marc; Campbell, Jennifer F. E.; Joannin, Sebastien; Tjallingii, Rik; El Hamouti, Najib; Junginger, Annett; Stele, Andreas; Bussmann, Jens; Schneider, Birgit; Lauer, Tobias; Spitzer, Katrin; Strupler, Michael; Brachert, Thomas; Mikdad, Abdeslam.
The limited availability of high-resolution continuous archives, insufficient chronological control, and complex hydro-climatic forcing mechanisms lead to many uncertainties in palaeo-hydrological reconstructions for the Western Mediterranean. In this study we present a newly recovered 19.63 m long core from Lake Sidi Ali in the North African Middle Atlas, a transition zone of Atlantic, Western Mediterranean and Saharan air mass trajectories. With a multi-proxy approach based on magnetic susceptibility, carbonate and total organic C content: core-scanning and quantitative XRF, stable isotopes of ostracod shells, charcoal counts, Cedrus pollen abundance, and a first set of diatom data, we reconstruct Western Mediterranean hydro-climatic variability,...
Tipo: Text
Palavras-chave: Holocene; Younger Dryas; Winter rain minima; Atlantic forcing; Western Mediterranean; North Atlantic Oscillation (NAO); Seasonality; Solar forcing; Lake sediments; Middle Atlas; Morocco.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00420/53188/55016.pdf

Atlantic Ocean Data Integration
Provedor de dados: 5
Autores: Koop-jakobsen, Ketil; Atlantos Wp7 Partners,.
In order to explore ways for better Integration of EU and North American data for the Atlantic Ocean, AtlantOS WP7 organized a 2-day international workshop in Brussels on June 7-8, 2017. As AtlantOS has established collaborations with organizations around the entire Atlantic Ocean, we expanded the international outlook to also include South America and Africa in order to better cover the South Atlantic Ocean. The workshop had representation from all bordering continents, and provided an overview of the Atlantic Ocean data landscape identifying key-organizations working with Atlantic Ocean data. Current impediments of transcontinental data exchange and readiness to share data on each continent were discussed from a technical as well as a political...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00483/59503/62375.pdf

Atlas of agricultural entomology - a knowledge base of pest insects
Provedor de dados: 21
It is an atlas of insects and mites relevant in agriculture (as pest or as predators or other). It allows to search by picture of the order and by common name (in Italian). Each insect is described together with the damage it may cause, its biological cycle and the tools to keep it under control, being them ecological, agronomic or direct and in the last case including active substances allowed in conventional and in organic.  It may be used to identify an insect that a farmer finds in its crops and to have a first information on the causes of its presence and how to manage it.  This tool provide very good pictures of insects so it can be used with a really practical approach. This can be used to develop a strategy for control.
Tipo: Practice tool
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023
URL: http://orgprints.org/30589/1/30589.png

Atorvastatin Has no Effects on Kidney Tissues of Wistar Albino Rats in the Long-Term Intake: An Electron Microscopic Study
Provedor de dados: 77
Autores: Aktas,Ayfer; Serhan Tasdemir,M; Cudi Tuncer,M; Nergiz,Yusuf; Akkus,Murat; Bagriyanik,Hüsnü Alper.
In this study, we evaluated the ultrastructural findings of kidney with systemic administration of different doses of atorvastatin in a rat model. Statins may have anti-inflammatory effects that would play a role in preventing the cellular damage. The aim of this study was to investigate how atorvastatin could play a role in kidney tissues. Forty adult male Wistar albino rats (200­250 g) were randomly divided into 4 groups of ten rats each (A1, A2, A3 and Control). Three different doses of atorvastatin were used to determine the effects on kidney tissues during 90 day period. The kidneys of A1 (0.1-mg group), A2 (0.5-mg group) and A3 (1-mg group) group were excised and the tissues were examined after the 90 days by transmission electron microscopy. Despite...
Tipo: Journal article
Palavras-chave: Kidney; Wistar-albino rat; Statins; Atorvastatin; Ultrastructural.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100025

Atorvastatin-Medicated Dentifrice Significantly Inhibits CD4+ T Cell Proliferation: In vitro Pilot Study
Provedor de dados: 77
Autores: Rosenberg,David R; Kernitsky,Jeremy R; Andrade,Catherine X; Ramirez,Valeria; Violant,Deborah; Nart,José.
Reports indicate that statins (cholesterol-lowering drugs), in addition to lowering cholesterol, have an immunomodulatory effect. This effect may be beneficial for the treatment of several diseases, including periodontal disease. The aim of the present study was to evaluate the immunomodulatory effect of an atorvastatin-medicated dentifrice on CD4+ T cell proliferation. CD4+ T cell proliferation assays and peripheral blood mononuclear cell (PBMC) viability assays were conducted on PBMCs from healthy donors cultured under the following conditions: control, atorvastatin solution, atorvastatin-medicated dentifrice, and dentifrice without atorvastatin at concentrations of 1, 5, 10, 50 and 100 µM. A Generalized Equation Estimation (GEE) model was used to...
Tipo: Journal article
Palavras-chave: Atorvastatin calcium; Dentifrices; T cells; Flow cytometry.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200002

Atratividade entre adultos de Eupalamides dedalus, praga de palmáceas.
Provedor de dados: 14
Autores: SILVA, A. de B.; MULLER, A. A.; SOUZA, L. A. de; LINS, P. M. P.; OHASHI, O. S.
bitstream/item/52968/1/PesquisaAnd060001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Controle de praga; Captura de animal; Eupalamides dedalus; Pará; Brasil; Oil palms; Insect.; Coco; Dendê; Inseto; Palmeira Oleaginosa.; Amazonia; Coconuts; Capture of animals; Pest control.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375334

Atrazine degradation patterns: the role of straw cover and herbicide application history
Provedor de dados: 63
Autores: Leal,Daniela Piaz Barbosa; Dick,Deborah Pinheiro; Stahl,Anna Meike; Köppchen,Stephan; Burauel,Peter.
ABSTRACT: In Brazil, atrazine (ATZ) is widely applied to maize (Zea mays L.) fields for weed control. The presence of ATZ and its metabolites in soil and water matrices has become a matter of some concern for governmental authorities as well as for society at large. This study evaluated the patterns of ATZ degradation (mineralization, extractable and non-extractable ATZ residues, and metabolite formation) in a Brazilian Typic Paleudult. Soil samples from a cultivated area under a no-tillage system with a history of ATZ application were incubated with 14C-ATZ in both the presence and absence of straw cover on the soil surface, and the evolved 14CO2 was determined by liquid scintillation. Samples from an area with native vegetation, adjacent to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atrazine mineralization; Sorption; Metabolites; No-tillage.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019000100063

ATRAZINE EFFICIENCY IN AN ANDISOL AS AFFECTED BY CLAYS AND NANOCLAYS IN ETHYLCELLULOSE CONTROLLED RELEASE FORMULATIONS
Provedor de dados: 127
Autores: Cea,M; Cartes,P; Palma,G; Mora,M.L.
Atrazine, a herbicide used for the control of broadleaf weeds of different crops, was incorporated in ethylcellulose controlled release formulations (CRFs) by using the solvent evaporation technique. Allophanic clays and nanoclays were incorporated as matrix modifying agents. The formulations were characterized by scanning electron microscopy (SEM) and infrared spectroscopy (FTIR), and their behavior was determined in aqueous phase. Dissipation studies and soil columns experiments with CRFs were also carried out, and compared with commercial formulations (CFs). In addition, a short-term bioassay was performed to evaluate the effect of CRFs and CFs on the emergence and growth of field mustard (Brassica campestris L.) under greenhouse conditions. The matrix...
Tipo: Journal article
Palavras-chave: Atrazine; Natural clays and nanoclays; Controlled release; Soil; Herbicidal activity.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912010000100007

Atrazine Reduces the Critical Period of Weed Interference on Narrow Row Corn
Provedor de dados: 87
Autores: PADILHA,M.; BARROSO,A.A.M.; CARVALHO,L.B.; COSTA,F.R.; BIANCO,S.
ABSTRACT The objective was to determine whether a change occurs in the critical period of weed interference prevention in narrow row corn with the use of atrazine and whether there is influence of the herbicide on crop yield components. The treatments consisted of periods without or with an initial weed control (0, 21, 35, 49, 63, 77, and 91 days after emergence), with or without application of atrazine in spikely post-emergence. The experiment was carried out in a 2 x 7 randomized blocks design (with and without weed control and seven periods with three replications). The use or not of atrazine was arranged in a split plot design. The most important weed species were Senecio brasiliensis, Urochloa plantaginea, Conyza bonariensis, Sida rhombifolia, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicide; Period of coexistence; Zea mays.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400721

Atributos do solo relacionados à adsorção de cádmio e cobre em solos tropicais - DOI: 10.4025/actasciagron.v27i4.1348
Provedor de dados: 1
Autores: Alleoni, Luis Reynaldo Ferraciciú; esalq-usp; Iglesias, Cindy Silva Moreira; DE FERRAN AMBIENTAL; Mello, Simone de Castro; ESALQ - USP; Camargo, Otávio Antonio de; IAC; Casagrande, José Carlos; UFSCar; Lavorenti, Norberto Antonio; UFSCar.
A adsorção de metais pesados no solo, tais como o cádmio e o cobre, é controlada por reações químicas e por processos físicos e biológicos. A retenção de metais pesados no solo pode diminuir a biodisponibilidade desses elementos no sistema solo-solução. Avaliou-se a adsorção de cádmio e de cobre em amostras de horizontes superficiais e subsuperficiais de oito solos, sendo cinco Latossolos, dois Nitossolos e um Argissolo. Correlacionou-se a adsorção máxima estimada pela equação linearizada de Langmuir com vários atributos dos solos. No horizonte A, a adsorção máxima de Cd foi correlacionada positivamente com a CTC total, com a superfície específica e com os teores de teores de argila, de silte, de óxidos de ferro bem cristalizados e de alumínio total,...
Palavras-chave: 5.01.01.03-0    Química do Solo retenção; Metal; Adsorção máxima; Lngmuiar 5.01.01.03-0    Química do Solo.
Ano: 2005
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1348

Atrofia de neurônios do plexo mientérico do íleo de ratos submetidos à intensa carência de proteínas - doi: 10.4025/actascibiolsci.v34i2.6793
Provedor de dados: 3
Autores: Moreira, Neide Martins; Universidade Estadual de Maringá; Muniz, Eliane; Universidade Paranaense; Hermes-Uliana, Catchia; Universidade Estadual de Maringá; Araújo, Eduardo José de Almeida; Universidade Estadual de Londrina; Sant'Ana, Debora de Mello  Goncales; Universidade Estadual de Maringá.
Objetivou-se avaliar os efeitos da oferta de uma dieta contendo 4% de proteínas para ratos adultos, quanto aos aspectos morfométricos do plexo mientérico do íleo. Vinte animais foram distribuídos aleatoriamente em dois grupos: Controle (n = 10) que receberam ração comercial com 26% de proteína e Experimental (n = 10) alimentados com ração com teor proteico reduzido para 4%, durante 90 dias. Neurônios do plexo mientérico do íleo presentes em preparados totais foram evidenciados por intermédio da técnica de Giemsa e da NADH-diaforase. Tanto a população neuronal total, assim como a subpopulação NADH-diaforase positiva sofreram atrofia com redução da área do pericário, do núcleo e do citoplasma. 
Tipo: Estudos morfológicos
Palavras-chave: Ciências Biológicas; Morfologia desnutrição proteica; Sistema nervoso entérico; Intestino delgado Morfologia protein malnutrition; Enteric nervous system; Small intestine.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6793

Atrophy of the Nitrergic Myenteric Neurons in the Descending Colon Rats Submitted to Protein and Vitamin Deficiency
Provedor de dados: 77
Autores: Araújo,Eduardo José de Almeida; Hermes,Catchia; Miranda Neto,Marcílio Hubner de; Almeida,Elton Carlos de; Sant'Ana,Débora de Mello Gonçales.
Effects of protein and B-complex vitamin deficiency were assessed with respect to the morphometry of myenteric neurons in the descending colon of adult rats. Sixteen animals were divided into two groups: Control Group (CG, n=8) and Experimental Group (EG, n=8). The CG received 22% protein chow and the EG received 4% protein chow for 120 days. The descending colon was submitted to NADH- and NADPH-diaphorase technique in order to evidence nervous cells in the whole mounts preparations. In the EG, NADH-d positive neurons presented reduced nuclei, while NADPH-d positive neurons showed atrophy of the soma area (~41.7%) inducing an increase of the proportion occupied by the nucleus inside in the soma of these cells.
Tipo: Journal article
Palavras-chave: Malnutrition; Large intestine; Enteric nervous system; Myenteric plexus; Neural plasticity.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000300047

Attack behavior of Podisus rostralis (Heteroptera: Pentatomidade) adults on caterpillars of Bombyx mori (Lepidoptera: Bombycidae)
Provedor de dados: 52
Autores: Lemos,Walkymário Paulo; Zanuncio,José Cola; Serrão,José Eduardo.
Attack behavior of the predator Podisus rostralis (Stäl) (Heteroptera: Pentatomidae) adults on fourth instar Bombyx mori L. (Lepidoptera: Bombycidae) caterpillars was studied in laboratory conditions. Ten 24 hours old adults of this predator were observed during two hours with the following attack behavior: (1) Predator: prey finding; prey observation; touching prey with antenna; attack behavior; prey paralysis; predator retreat after attack; attack cessation; successive attacks; and (2) Prey: defense. The predator P. rostralis found its prey before attacking and it approached it with slow circular movements. The attack was usually made in the posterior part of the prey to reduce defense reaction. Larger size of prey in relation to the predator resulted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asopinae; Alternative prey; Biological control; Ethology; Insecta.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800014

Attack of Potyphagotarsonemus tatus on cotton treated with growth retardants
Provedor de dados: 43
Autores: Barbosa,Luiz Mauro; Castro,Paulo R.C.
The effects of growth retardants on infestation by Potyphagotarsonemus tatus (broad mite) on cotton (Gossypium hirsutum L. cv. IAC-17) plants was studied. Cotton plants were sprayed with (2-ch1oroethy1) trimethylammonium chloride (CCC) 250, 350 and 450 ppm, and with 1,1-dimethyl-piperidinium chloride (Pix) at concentrations of 84, 167 and 250 ppm. Growth retardants did not give effective control of Potyphagotarsone mus tatus but application of Pix 167 ppm showed a tendency to reduce mite attack.
Tipo: Info:eu-repo/semantics/article
Ano: 1981
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761981000100011

Attention in schizophrenia and in epileptic psychosis
Provedor de dados: 56
Autores: Kairalla,I.C.J; Mattos,P.E.L; Hoexter,M.Q; Bressan,R.A; Mari,J.J; Shirakawa,I.
The adaptive behavior of human beings is usually supported by rapid monitoring of outstanding events in the environment. Some investigators have suggested that a primary attention deficit might trigger symptoms of schizophrenia. In addition, researchers have long discussed the relationship between schizophrenia and the schizophrenia-like psychosis of epilepsy (SLPE). On the basis of these considerations, the objective of the present study was to investigate attention performance of patients with both disorders. Patient age was 18 to 60 years, and all patients had received formal schooling for at least four years. Patients were excluded if they had any systemic disease with neurologic or psychiatric comorbidity, or a history of brain surgery. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Attention; Schizophrenia; Psychotic disorders; Epilepsy; Neuropsychology.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000100010

Attentional control and engagement with digital technology
Provedor de dados: 17
Autores: Tracy Alloway; Ross Alloway.
Multiple demands comprise the efficiency of attentional control. There is abundant evidence that when an individual attempts two or more attentionally demanding activities at the same time, the allocation of attention to the tasks is limited and performance suffers as a result. Yet, recent technological innovations require many individuals to manage multiple digital technologies simultaneously or to switch attentional control between tasks. The ability to multitask with various digital technologies involves dividing attention, switching between tasks, and keeping track of multiple strands of information in working memory.
Tipo: Manuscript
Palavras-chave: Developmental Biology; Neuroscience.
Ano: 2011
URL: http://precedings.nature.com/documents/5603/version/1

Attenuation of renal ischemic reperfusion injury by salvianolic acid B via suppressing oxidative stress and inflammation through PI3K/Akt signaling pathway
Provedor de dados: 56
Autores: Ma,Z.G.; Xia,H.Q.; Cui,S.L.; Yu,J.
Salvianolic acid B (SAB) is one the major phytocomponents of Radix Salvia miltiorrhiza and exhibit numerous health promoting properties. The objective of the current study was to examine whether SAB exerts a renoprotective effect by attenuating oxidative stress and inflammatory response through activating phosphatidylinositol 3-kinase/serine-threonine kinase B (PI3K/Akt) signaling pathway in a renal ischemic reperfusion rat model. Forty Sprague-Dawley male rats (250–300 g) were obtained and split into four groups with ten rats in each group. The right kidney of all rats was removed (nephrectomy). The rats of the Control group received only saline (occlusion) and served as a sham control group, whereas rats subjected to ischemic reperfusion (IR) insult by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Renal ischemic reperfusion; Salvianolic acid B; Oxidative stress; Inflammation; PI3K/Akt pathway.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017000600607

Attitudes Towards and Satisfaction with Credit Unions in Alberta. A Regression and Scale Analysis.
Provedor de dados: 31
Autores: Dakurah,   Henry A.; Goddard,   Ellen W.; Osuteye,   Nicholas.
Credit unions have played an important historical role in the Canadian economy. However, recent changes in the financial, agricultural and agri-food industry are posing great challenges to Credit unions in Western Canada. Much attention has been given to the impact of competitive rates and the environment offered by banks on credit union performance to the neglect of issues relating to member satisfaction and commitment which may be adding to other problems in the credit union sector.         Studies by Feinberg (2001), Sibbald, et al (1999), Loser et. al (1999) , Fried, et. al (1999), Karels and McClatchey (1999) and Tokle, and Tokle (2001) among others have identified key issues relating to the competitive financial roles of  credit unions in small...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural Finance.
Ano: 2005
URL: http://purl.umn.edu/34155

'Attract &amp; Kill' - ein innovatives Konzept zur biologischen Bekämpfung von bodenlebenden Schädlingen
Provedor de dados: 21
Autores: Vidal, Stefan; Mävers, Frauke; Brandl, Michael; Przyklenk, Michael; Schumann, Mario; Patel, Anant.
Soil dwelling pest species are difficult to control because of their cryptic life style and their unpredictable distribution belowground. The efficacy of biological control agents is limited, mainly because of low rhizosphere competence. Here we propose to use a strategy where pest are attracted to killing agents instead of bringing killing agents to the pest. We developed capsules emitting carbon-dioxide which are combined with an specific isolate of an entomopathogenic fungus or Neem. The principle of an attract &amp; kill strategy takes advantage of the behaviour of soil dwelling larvae which use CO2 for locating their host plants. Components used for the production of the capsules are just contain biologically derived substances and therefore do not...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2015
URL: http://orgprints.org/27202/1/27202_vidal.pdf

Attractants in plant protein-based diets for the carnivorous largemouth bass Micropterus salmoides
Provedor de dados: 63
Autores: Oliveira,Ana Maria Barretto de Menezes Sampaio de; Cyrino,José Eurico Possebon.
Adding attractants can improve acceptability of artificial diets by carnivorous fish fry and fingerlings, increasing intake of unpalatable feeds and improving growth rate, while reducing feeding time and feeding wastes. This study aimed to evaluate the effects of levels of inclusion of different attractants in plant protein-based diets on the performance of largemouth bass Micropterus salmoides. Nine hundred juvenile largemouth bass (26.54 ± 1.53 g) conditioned to accept dry, artificial feed were stocked in 60, 90-L polyethylene tanks (15 fish per group) in a completely randomized design trial (n=3). Fish were fed two daily meals ad libitum at 7h00 and 17h00, for 13 days, with a diet (100% plant protein source) containing either soluble fish protein - SFP...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding attractants; Palatability; Carnivorous fish.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000300015

Attraction of Astylus variegatus (Germ.) (Coleoptera: Melyridae) by volatile floral attractants
Provedor de dados: 63
Autores: Ventura,Maurício Ursi; Pereira,Tania; Nunes,Daiane Heloisa; Arruda,Iara Cintra de.
The beetle Astylus variegatus (Germ.) (Coleoptera: Melyridae) is frequently found in flowers feeding on pollen. Responses of A. variegatus to volatile floral attractants were studied in common beans (Phaseolus vulgaris L.) fields. Traps originally designed to capture Diabrotica speciosa (Germ.) (Coleoptera: Chrysomelidae), consisted of plastic bottles (2 L) with 150 holes (5-mm diameter) yellow gold painted and containing inside a plastic strip (3.5 &lt;FONT FACE=Symbol&gt;´&lt;/FONT&gt; 25 cm) with Lagenaria vulgaris (L.) powder (0.28% B cucurbitacin - feeding stimulant and arrestant for diabroticites) sprayed with carbaril insecticide. Treatments consisted of 1,4-dimethoxybenzene (one or two dispensers per trap), 1,4-dimethoxybenze + indole,...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Diabrotica speciosa; Semiochemical; Trap.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000300016

Attractive plant volatiles as a control method against apple fruit moth (Argyresthia conjugella Zell.)?
Provedor de dados: 21
Autores: Jaastad, Gunnhild; Knudsen, Geir K.; Kobro, Sverre; Bäckman, Anna-Carin; Witzgall, Peter; Bengtsson, Marie.
Apple fruit moth, Argyresthia conjugella Zell. (Lepidoptera: Argyresthiidae), is the most important  pest of apples in Scandinavia. In years when its primary host, rowan (Sorbus aucuparia L.), has little  or no berries for egglaying, female A. conjugella fly into apple orchards to lay their eggs. In some  years the entire apple crop can be destroyed. Volatiles from apples and rowan have been collected  and identified. In GC-EAD tests females have responded to several compounds found in both  rowan and apple. Some of these compounds were used in field trapping tests during 2002, and a  mixture of two compounds trapped significantly more females and males compared to control traps.  However, field trapping results from 2003 indicate that the two-compound...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004
URL: http://orgprints.org/14025/1/6_Jaastad_29_34.pdf

Attractivity of omnivore, carnivore and herbivore mammalian dung to Scarabaeinae (Coleoptera, Scarabaeidae) in a tropical Atlantic rainforest remnant
Provedor de dados: 92
Autores: Filgueiras,Bruno K. C.; Liberal,Carolina N.; Aguiar,Cristina D. M.; Hernández,Malva I. Medina; Iannuzzi,Luciana.
In this study, performed in a remnant of Brazilian Atlantic Forest, three types of dung from animals with distinct alimentary habits were utilized, in order to verify possible differences of attractivity of these dungs to the Scarabaeinae and the influence of seasonality in the attractivity. Three habitats were sampled: edge, clearing and forest core, each with 40 pitfall traps. A total of 2,137 beetles were collected from August 2005 to July 2006. Canthidium sp. 1 (43%) and Dichotomius sericeus (41%) were the most abundant species. From the total number of beetles collected, 80.5% were attracted to human dung, 11% to jaguar dung, 7.8% to waterbuck dung and 0.7% to the control. The species Canthidium sp.1, Canthidium sp. 2, Ateuchus sp., Canthon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic forest; Bait; Dung beetles; Seasonality.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000300017

Attraversando lo stagno : storie della migrazione ecuadoriana in Europa tra continuità e cambiamento (1997-2007) (Reseñas)
Provedor de dados: 122
Autores: Lara, Ruth.
Reseña de la publicación: Attraversando lo stagno: storie della migrazione ecuadoriana in Europa tra continuità e cambiamento (1997-2007), de Chiara Pagnotta.           La inmigración hacia Italia ha sido considerada como un hecho inesperado y como un proceso nuevo con respecto a otros países europeos de amplia tradición migratoria. La emigración ecuatoriana hacia Europa puede ser descrita de la misma manera. En ese contexto y desde un análisis interdisciplinario, Chiara Pagnotta presenta una meritoria investigación en la cual se exponen las historias y travesías de mujeres ecuatorianas, quienes, desde los años noventa, se radicaron en dos localidades europeas: Génova y Madrid. La obra se inscribe en el análisis de las subjetividades en el ámbito de los...
Tipo: Artículo
Palavras-chave: RESEÑA ACADÉMICA; MIGRACIÓN; EMIGRACIÓN FEMENINA; CULTURA; ACADEMIC REVIEW; MIGRATION; FEMALE EMIGRATION; CULTURE; ECUADOR; EUROPA.
Ano: 2012
URL: http://hdl.handle.net/10469/4012

Attraversando lo stagno : storie della migrazione ecuadoriana in Europa tra continuità e cambiamento (1997-2007) (Reseñas)
Provedor de dados: 122
Autores: Lara, Ruth.
Reseña de la publicación: Attraversando lo stagno: storie della migrazione ecuadoriana in Europa tra continuità e cambiamento (1997-2007), de Chiara Pagnotta.           La inmigración hacia Italia ha sido considerada como un hecho inesperado y como un proceso nuevo con respecto a otros países europeos de amplia tradición migratoria. La emigración ecuatoriana hacia Europa puede ser descrita de la misma manera. En ese contexto y desde un análisis interdisciplinario, Chiara Pagnotta presenta una meritoria investigación en la cual se exponen las historias y travesías de mujeres ecuatorianas, quienes, desde los años noventa, se radicaron en dos localidades europeas: Génova y Madrid. La obra se inscribe en el análisis de las subjetividades en el ámbito de los...
Tipo: Artículo
Palavras-chave: RESEÑA ACADÉMICA; MIGRACIÓN; EMIGRACIÓN FEMENINA; CULTURA; ACADEMIC REVIEW; MIGRATION; FEMALE EMIGRATION; CULTURE; ECUADOR; EUROPA.
Ano: 2012
URL: http://hdl.handle.net/10469/4012

Atualização sobre tricomonose genital bovina.
Provedor de dados: 14
Autores: PELLEGRIN, A. O.; LEITE, R. C.
A tricomonose é uma doença venérea de bovinos causada por um protozoário flagelado denominado Tritrichomonas foetus (T.foetus), cujo habitat é o trato genital de bovinos sendo transmitido do macho para a fêmea através da monta ou pelo uso de sêmen contaminado. O T.foetus é um protozoário de morfologia piriforme com três flagelos em posição cranial e um caudal, cujo tamanho oscila entre entre 8-18mm de comprimento e 4-9 de largura. Se caracteriza por possuir 4 flagelos, 3 deles são anteriores e livres e o 4o acompanha a membrana ondulante, que é perfeitamente visível quando em microscopia, localizando-se na parte posterior.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Tricomonose genital bovina; Patogenia; Controle; Imunoprofilaxia; Bovine; Disease; Pathogeny; Diagnosis; Control.; Bovino; Diagnostico; Doença; Epidemiologia; Imunidade; Tratamento.; Epidemiology; Immunity.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811109

Atypical distyly in Psychotria goyazensis Mull. Arg. (Rubiaceae), an intramorph self-compatible species
Provedor de dados: 39
Autores: Rodrigues,Ebenezer Barbosa; Consolaro,Hélder.
Distyly is a genetically controlled floral dimorphism, characterized by the reciprocal positioning of pin and thrum morphs, a heteromorphic incompatibility system and a balanced morph ratio (isoplethy). This study aimed to investigate the phenology, features of distyly, reproductive biology, and floral visitors of Psychotria goyazensis Mull. Arg. (Rubiaceae), an intramorph self-compatible species, in a tropical semideciduous forest in the municipality of Catalão, located in the state of Goiás, Brazil. The phenology was recorded for a sample of individuals, the floral morphology being described using fresh and fixed material. The incompatibility system was tested using controlled hand pollinations. Floral visitors were collected and identified. Blooming...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heterostyly; Monomorphism; Cerrado; Reproductive biology.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100016

Atypical, ventro-ventral copulation position in aphids of the genus Stomaphis Walker, 1870 (Insecta, Hemiptera)
Provedor de dados: 16
Autores: Depa, L.; Kanturski, M.; Taszakowski, A.; Wieczorek, K.
Firm matching of genitals during copulation is of critical importance to effective insemination and thus, gene flow. During the evolution of insects, an effective position during copulation promoted higher fecundity through control over the act of mating or elimination of competitors. Usually during insect copulation, either twisting or flexing of the male abdomen occurs, and genitals remain symmetrically or asymmetrically disposed following changes in the mating position. However, it is always the dorsal side of the male genitalia that makes contact with the ventral side of female abdomen. Here we present the unusual case of a ‘belly-to-belly’ copulation, with symmetrically positioned male genitals and no twisting of the abdomen. During the mating of two...
Tipo: Article / Letter to the editor
Palavras-chave: Aphididae; Dwarfism; Mate guarding; Sexual competition; Speciation; 42.75.
Ano: 2014
URL: http://www.repository.naturalis.nl/record/480053

Auctioning Conservation Payments using Environmental Indices
Provedor de dados: 31
Autores: Cattaneo,   Andrea.
A framework for analyzing conservation programs that rank applications using environmental indices is presented. We derive the optimal bid from the farmer's perspective for both land retirement and working lands agri-environmental payment programs and we analyze how these solutions depend on program design parameters. The distinction is made between environmental objectives based on whether the farmer exercises control or not over the level proposed in a bid to participate in a program. The optimization model is solved analytically for two cases - a land retirement and a working lands program - highlighting the differences in the results. For land retirement programs we conclude that, for the cases considered, the exogenous environmental performance does...
Tipo: Conference Paper or Presentation
Palavras-chave: Environmental payments; Program design; Participation incentives; D8; H5; Q28; Environmental Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/25438

Audit risk factors in certification: How can risk-oriented audits improve the quality of certification standards?
Provedor de dados: 31
Autores: Schulze,   Holger; Albersmeier,   Friederike; Spiller,   Achim; Jahn,   Gabriele.
Over the past few years, certification standards have become increasingly relevant for the agribusiness sector. Substantial parts of the value chain are already certified by standards such as QS, IFS or EurepGap. It is not known, however, whether these approaches can actually ensure a high quality control. This article is based on the analysis of the data base of the QSsystem with more than 72,000 companies involved. It tries to deduce some first empirically rich hypotheses about the connection between auditing quality and the institutional framing of the certification.
Tipo: Conference Paper or Presentation
Palavras-chave: Certification; Quality assurance; Risk oriented auditing approach; Food Consumption/Nutrition/Food Safety.
Ano: 2006
URL: http://purl.umn.edu/10108

Auditory disorders and acquisition of the ability to localize sound in children born to HIV-positive mothers
Provedor de dados: 55
Autores: Matas,Carla Gentile; Iorio,Maria Cecília Martinelli; Succi,Regina Célia de M.
The objective of the present study was to evaluate children born to HIV-infected mothers and to determine whether such children present auditory disorders or poor acquisition of the ability to localize sound. The population studied included 143 children (82 males and 61 females), ranging in age from one month to 30 months. The children were divided into three groups according to the classification system devised in 1994 by the Centers for Disease Control and Prevention: infected; seroreverted; and exposed. The children were then submitted to audiological evaluation, including behavioral audiometry, visual reinforcement audiometry and measurement of acoustic immittance. Statistical analysis showed that the incidence of auditory disorders was significantly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Audiological evaluation; HIV-positive mothers; Children.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000100004

Aufwertung der Kulturlandschaft durch Nützlingsförderung im Gemüse- und Ackerbau
Provedor de dados: 21
Nützlingsförderung durch Habitatmanagement  Kurzbeschreibung:  - Habitat-Management: Verbesserung der natürlichen Schädlingsregulation mittels indirekten Pflanzenschutz Massnahmen (naturnahe Flächen wie Brachen, Säume)  - Faunistische Erfolgskontrolle des ökologischen Ausgleichs mittels Bioindikatoren (Laufkäfer und Spinnen) mit Einbezug der Produktionsflächen als Referenz  - Entwicklung und Testen von lokal angepassten Saatgutmischungen (Wildkrautstreifen, Ackerkrautsaum)  - Auswirkungen unterschiedlicher Pflegemassnahmen auf epigäische Nutzarthropoden  - Biotopverbund Grosses Moos
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023

Auger-type granular fertylizer distributor: matemathical model and dynamic simulation
Provedor de dados: 70
Autores: Garcia,Angel P.; Cappelli,Nelson L.; Umezu,Claudio K.
The objective of this study was to model mathematically and to simulate the dynamic behavior of an auger-type fertilizer applicator (AFA) in order to use the variable-rate application (VRA) and reduce the coefficient of variation (CV) of the application, proposing an angular speed controller θ' for the motor drive shaft. The input model was θ' and the response was the fertilizer mass flow, due to the construction, density of fertilizer, fill factor and the end position of the auger. The model was used to simulate a control system in open loop, with an electric drive for AFA using an armature voltage (V A) controller. By introducing a sinusoidal excitation signal in V A with amplitude and delay phase optimized and varying θ' during an operation cycle, it is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seeder fertilizer drill; Modeling; Precision agriculture.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100016

Augmented Reality as the next development integrated into software aimed to support the weed control decision: o próximo passo no desenvolvimento de sistemas de suporte à decisão para o controle de plantas daninhas
Provedor de dados: 87
Autores: Vidal,Niccholas Rodriguez.
Tipo: Info:eu-repo/semantics/other
Ano: 2023
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010010800001

Augmented reality systems for weed economic thresholds applications
Provedor de dados: 87
Autores: Vidal,N.R.; Vidal,R.A.
The augmented reality (AR) technology has applications in many fields as diverse as aeronautics, tourism, medicine, and education. In this review are summarized the current status of AR and it is proposed a new application of it in weed science. The basic algorithmic elements for AR implementation are already available to develop applications in the area of weed economic thresholds. These include algorithms for image recognition to identify and quantify weeds by species and software for herbicide selection based on weed density. Likewise, all hardware necessary for AR implementation in weed science are available at an affordable price for the user. Thus, the authors propose weed science can take a leading role integrating AR systems into weed economic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Augmented reality; Weed economic thresholds; Software; Neural algorithms; Image recognition.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000200025

Aumento de la Temperatura de Incubación en Huevos de Gallina Araucana (Gallus inauris): Efecto sobre la Mortalidad Embrionaria, Tasa de Eclosión, Peso del Polluelo, Saco Vitelino y de Órganos Internos
Provedor de dados: 77
Autores: Ruiz Diaz,Nancy; Orrego,Guillermo; Reyes,Miguel; Silva,Mauricio.
Se evaluó el efecto del incremento de la temperatura de incubación en huevos de gallina Araucana sobre la tasa de eclosión, la mortalidad embrionaria, el peso del polluelo, del saco vitelino y de los órganos internos. Los huevos (n= 426) fueron distribuidos al azar en: a) grupo Control (n=215), incubados a 37,5 °C por 21 días y b) grupo Experimental (n= 211), incubados a 39,5 °C, por 18 días, disminuyéndose a 37,5 °C los 3 días restantes. En ambos grupos la incubación se realizó con una humedad relativa constante del 55 %. La tasa de mortalidad embrionaria total fue significativamente menor (P 0,05) para el grupo Control (14,9 vs 44,1 %) y consecuentemente la tasa de eclosión fue significativamente mayor (P 0,05) en este mismo grupo (97,8 vs. 80,5 %). El...
Tipo: Journal article
Palavras-chave: Gallina Araucana; Incubación; Mortalidad embrionaria; Eclosión; Peso polluelo.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100009

Ausbreitung des Rapsglanzkäfers innerhalb eines Feldes und in der Landschaft
Provedor de dados: 21
Autores: Géneau, Céline; Schlatter, Christian; Daniel, Claudia.
Pollen beetles (Meligethes sp.) are important pests in oilseed rape (Brassica napus). In  our study we wanted to determine which landscape structures have an influence on pollen beetle  population in early spring. The dynamics of pollen beetle population and the damages on rape were  studied on field scale level with 100 sampling points per field and on landscape scale level with 18  organic oilseed rape fields which differed by the complexity of the surrounding landscapes. The  number of pollen beetle was strongly correlated with the distance to a forest. At the beginning of  the flight period more pollen beetles were found close to the forest, later they migrated to the rest of  the field. In addition, agricultural practices appeared to be determinant...
Tipo: Journal paper
Palavras-chave: Cereals; Pulses and oilseeds Crop husbandry Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/20493/1/2009_12RGKMigrationDgaaE.pdf

Ausbreitung des Rapsglanzkäfers innerhalb eines Feldes und in der Landschaft
Provedor de dados: 21
Autores: Géneau, Céline; Schlatter, Christian; Daniel, Claudia.
Pollen beetles (Meligethes sp.) are important pests in oilseed rape (Brassica napus).  In our study we wanted to determine which landscape structures have an influence on pollen beetle population in early spring. The dynamics of pollen beetle population and  the damages on rape were studied on field scale level with 100 sampling points per field and on landscape scale level with 18 organic oilseed rape fields which differed by  the complexity of the surrounding landscapes. The number of pollen beetle was strongly correlated with the distance to a forest. At the beginning of the flight period more pollen beetles were found close to the forest, later they migrated to the rest of the field. In addition, agricultural practices appeared to be determinant for...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/13966/1/Geneau_13966.pdf

Auswertung von Daten des Integrierten Verwaltungs- und Kontrollsystems zur Abschätzung von Wirkungen der EU-Agrarreform auf Umwelt und Landschaft
Provedor de dados: 31
Autores: Osterburg,   Bernhard; Nitsch,   Heike; Laggner,   Birgit; Roggendorf,   Wolfgang.
Zusammenfassung: Der vorliegende Arbeitsbericht entstand im Rahmen des F+E-Vorhabens „Naturschutzfachliche Bewertung der GAP - Effizienzsteigerung durch Nutzung bestehender Datenbestände“, das durch das Bundesamt für Naturschutz (BfN) mit Mitteln des Bundesministeriums für Umwelt, Naturschutz und Reaktorsicherheit gefördert wurde. Ziel dieses Projektes war die Untersuchung flächenbezogener Auswirkungen der im Jahr 2003 beschlossenen EU-Agrarreform in Hinblick auf naturschutzrelevante Fragestellungen.                                                                                                                        Grundlage für quantitative Analysen bildeten die Daten des Integrierten Verwaltungs- und Kontrollsystems (InVeKoS), Fachkarten zu...
Tipo: Report
Palavras-chave: Agrarreform; InVeKoS-Daten; Flächennutzung; Grünland; Naturschutz; Agricultural reform; IACS-data; Land use; Grassland; Nature conservation; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy; Q24; Q28; Q57; Q58.
Ano: 2009
URL: http://purl.umn.edu/104011

Auswinterung im Jahr 2011/12: Auswirkungen auf   Winterweizen-Liniensorten und Winterweizenpopulationen in der F10
Provedor de dados: 21
Autores: Brumlop, Sarah; Finckh, Maria R.
TThree winter wheat composite cross (CC) populations were created in 2001 in the UK consisting either of 20 modern wheat parents (called A population), a subset of 12 high quality parents (Q), or a subset of 9 high yielding parents (Y). Seed of the F4 was transferred to the University of Kassel in 2005 and the populations were grown since then under organic and conventional conditions in well separated large (&gt;100 m2) plots in two parallel sets (12 populations total) without conscious selection applied. In the conventional system fungicides and insecticides were not applied to expose the populations to natural pest and disease pressure. In addition, since the F8 two A populations have been maintained as broadcast sown populations without mechanical weed...
Tipo: Conference paper, poster, etc.
Palavras-chave: Breeding; Genetics and propagation.
Ano: 2013
URL: http://orgprints.org/21495/1/21495_Brumlop.pdf

Auswirkungen des langfristigen ökologischen Landbaus auf bodenbürtige Treibhausgasemissionen
Provedor de dados: 21
Autores: Gattinger, Andreas; Skinner, Colin; Krauss, Maike; Mäder, Paul.
Despite the increase in organic cropland, knowledge on the impact of organic farming on soil-derived nitrous oxide (N2O) and methane (CH4) emissions is rather limited. To improve the knowledge base, N2O and CH4 fluxes were investigated in a 571 day lasting cropping sequence in the “DOK” field trial. Two organic and two non-organic farming systems and an unfertilized control were chosen. For the whole monitoring, the two organic systems combined emitted 40% less N2O than the two non-organic ones cumulated on area-scale. Yield-scaled cumulated N2O emissions were nearly 10% lower for the organic systems combined, despite the yield gap of 27%. We found that besides N input, management induced soil quality properties drive differences in N2O emissions between...
Tipo: Conference paper, poster, etc.
Palavras-chave: Soil quality; Nutrient turnover; Air and water emissions.
Ano: 2019
URL: http://orgprints.org/36205/1/Beitrag_278_final_a.pdf

Auswirkungen eines positiven Handlings auf die Ausweichdistanz und die Fleischqualität von Mastrindern aus der Mutterkuhhaltung
Provedor de dados: 21
Autores: Probst, Johanna K.; Hillmann, Edna; Leiber, Florian; Kreuzer, Michael; Spengler Neff, Anet.
This research investigated the effect of a handling treatment in beef cattle on stress related parameters. Ten 15 months old Limousin beef cattle (crossbreds) were divided in a handling group (HG) and a control group (KG) by pairing animals with similar avoidance distances. The back-region handlings were carried out 10 times for 8 min during 5 weeks before slaughter. Before and after all handling sessions, each animal was tested by an avoidance distance test (AWD). From each carcass, samples of M. longissimus dorsi were analysed for meat quality (cooking loss, shear force and meat colour). Differences between first and second avoidance distance test were greater in HG animals. Avoidance distance got much lower in HG animals than in KG animals. Shear force...
Tipo: Conference paper, poster, etc.
Palavras-chave: Health and welfare.
Ano: 2013
URL: http://orgprints.org/21494/1/21494_prpbst.pdf

Autenticidad y Fraude  Información destinada a los Consumidores sobre el Control de la Calidad y Seguridad Alimenticia en las Cadenas de Producción Orgánica
Provedor de dados: 21
Autores: Elzakker, Bo van; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
Este catálogo se destina a los consumidores y suministra una visión práctica acerca de lo que se ha hecho para garantizar la autenticidad y la integridad de 7 tipos de productos orgánicos, donde hay posibles mejoras y lo que los consumidores pueden hacer para mantener esfuerzos que salen al encuentro de sus exigencias. Otros catálogos destinados a los consumidores cubren el “Sabor, Frescor y Contenido en Nutrientes” y la “Seguridad y Contaminación”. Existen otros catálogos destinados a los vendedores y otros a la producción específica de determinados productos.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4982/1/4_Autenticidad_Fraude_consumidores.pdf

Autenticidad y Fraude  Información destinada a los Vendedores sobre el Control de la Calidad y Seguridad Alimenticia en las Cadenas de Producción Orgánica
Provedor de dados: 21
Autores: Elzakker, Bo van; Neuendorff, Jochen; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
Este catálogo se destina a los vendedores y suministra una visión práctica acerca del que se ha realizado para garantizar la autenticidad y la integridad de 7 tipos de productos orgánicos donde mejorías son posibles y lo que los vendedores pueden hacer para mantener esfuerzos que salen al encuentro de las exigencias de los consumidores. Otros catálogos para los minoristas cubren el sabor, frescor y nutrientes o seguridad y contaminación. Existen aún otros catálogos que se destinan a los consumidores o la producción específica de determinados productos.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4880/1/3_Autenticidad_Fraude_vendedores_(4).pdf

Autenticidade e Fraude  Informação aos Consumidores visando o Controlo da Qualidade e Segurança Alimentar em Cadeias de Produção Biológica
Provedor de dados: 21
Autores: Elzakker, Bo van; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
Este desdobrável destina-se aos os consumidores e fornece uma  visão prática acerca do que se tem feito para garantir a  autenticidade e a integridade de 7 tipos de produtos biológicos,  onde melhorias são possíveis e o que os consumidores podem  efectuar para manter esforços que vão ao encontro das suas  exigências. Outros desdobráveis destinados aos consumidores  cobrem o sabor, frescura e nutrientes ou a segurança e  contaminação. Existem ainda outros desdobráveis que visam os  retalhistas ou a produção específica de determinados produtos.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4972/1/4_Autenticidadeconsum.pdf

Autenticidade e Fraude  Informação aos Retalhistas visando o Controlo da Qualidade e Segurança Alimentar em Cadeias de Produção Biológica
Provedor de dados: 21
Autores: Elzakker, Bo van; Neuendorff, Jochen; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
Este desdobrável destina-se aos retalhistas e fornece uma visão  prática acerca do que se tem realizado para garantir a  autenticidade e a integridade de 7 tipos de produtos biológicos  onde melhorias são possíveis e o que os retalhistas podem  efectuar para manter esforços que vão ao encontro das  exigências dos consumidores. Outros desdobráveis para os  retalhistas cobrem o sabor, frescura e nutrientes ou segurança e  contaminação. Existem ainda outros desdobráveis que se  destinam aos visam os consumidores ou a produção específica de  determinados produtos.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4973/1/3_Autenticidaderetalh.pdf

Autenticità e Frode  Informazioni per i consumatori sui Controlli di Qualità e Sicurezza nelle Filiere di Produzione Biologica
Provedor de dados: 21
Autores: Elzakker, Bo van; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
Questo opuscolo rappresenta una piccola guida pratica per i consumatori su ciò che è fatto allo scopo di assicurare l’autenticità e l’integrità degli alimenti biologici sino a che questi raggiunge il consumatore.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4977/1/4_Fraud_Consumer_IT2.pdf

Autenticità e Frode    Informazioni per i dettaglianti sui Controlli di Qualità e Sicurezza nelle Filiere di Produzione Biologica
Provedor de dados: 21
Autores: Elzakker, Bo van; Neuendorff, Jochen; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
Questo opuscolo rappresenta una piccola guida pratica per i venditori al dettaglio su ciò che viene fatto allo scopo di assicurare l’autenticità e l’integrità di 7 alimenti biologici, dove è possibile apportare miglioramenti e su cosa possono fare i dettaglianti per venire incontro alle richieste dei consumatori. Altri opuscoli per i dettaglianti riguardano il sapore, la freschezza, i nutrienti o la salubrità e la presenza di contaminanti, altri opuscoli sono indirizzati ai consumatori o alla produzione di specifici alimenti.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4978/1/3_Fraud_retailer_IT2.pdf

Authenticating the origin of different shrimp products on the Tunisian markets by PCR/RFLP method
Provedor de dados: 5
Autores: Besbes, Nadia; Jerome, Marc; Berge, Jean-pascal; Sadok, Saloua.
This study describes a polymerase chain reaction using restriction fragment length polymorphism (PCR-RFLP) assay based on the 16S rRNA mitochondrial gene to identify commercial food products of wide range of Penaeidae and Pandalidae shrimp species commercialised in the Tunisian market. Phylogenetic analyses on 16S rRNA mitochondrial gene were used to study the relationships among the considered species. Penaeidae shrimp species was easily differentiated and confirmed by direct sequencing, showing a genetic distance of 0.34 with respect to Pandalidae species. A rapid and reliable PCR method using restriction fragment length polymorphism (RFLP) with three restriction enzymes (HpyCH4III/ MboI / AluI) was optimized for unambiguous differentiation of shrimp...
Tipo: Text
Palavras-chave: Shrimps; Species identification; 16S rRNA mtDNA; PCR-RFLP.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00303/41445/40637.pdf

Authenticity and Fraud  Information to Consumers regarding Control of Quality and Safety in Organic Production Chains
Provedor de dados: 21
Autores: Elzakker, Bo van; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
This leaflet provides a practical overview for consumers of what is  done to secure the authenticity and integrity of 7 types of organically  produced foods, where improvements are possible and what  the consumers can do to support efforts that meet their demands.  Other leaflets for consumers cover taste, freshness and nutrients  or safety and contamination, and separate leaflets aim at retailers  or at production of specific commodities.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4967/1/4_fraud_leaflet_consumer_english.pdf

Authenticity and Fraud  Information to Retailers regarding Control of Quality and Safety in Organic Production Chains
Provedor de dados: 21
Autores: Elzakker, Bo van; Neuendorff, Jochen; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
This leaflet provides a practical overview for retailers of what is  done to secure the authenticity and integrity of organically produced  foods, where improvements are possible and what the retailers  can do to support efforts that meet their customers’ demands.  Other leaflets for retailers cover taste, freshness and nutrients  or safety and contamination, and separate leaflets aim at  consumers or at production of specific commodities.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4968/1/3_fraud_leaflet_retailer_english.pdf

Authentizität und Betrug  Information für den Handel zur Überwachung von Qualität und Sicherheit in biologischen Lebensmittelketten
Provedor de dados: 21
Autores: Elzakker, Bo van; Neuendorff, Jochen; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
Dieses Informationsblatt gibt Händlerinnen und Händlern einen praktischen Überblick über Massnahmen zur Gewährleistung von Authentizität und Glaubwürdigkeit bei sieben biologisch erzeugten Produkten entlang der gesamten Produktionskette. Es zeigt auf, wo Verbesserungen möglich sind und was der Handel tun kann, um diese Bemühungen zu unterstützen. Weitere Informationsblätter für den Handel informieren über «Geschmack, Frische und Nährstoffe» sowie «Sicherheit und Kontamination». Zusätzliche  Informationsblätter sprechen Konsumenten und Produzentinnen der sieben Lebensmittel an.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4963/1/3_authentizitaet_handel.pdf

Authentizität und Betrug  Informationen für Konsumentinnen und Konsumenten über die Überwachung der Qualität und Sicherheit in biologischen Lebensmittelketten
Provedor de dados: 21
Autores: Elzakker, Bo van; Torjusen, Hanne; Jensen, Katherine O’Doherty; Brandt, Kirsten.
Dieses Informationsblatt gibt Konsumentinnen und Konsumenten einen praktischen Überblick über Massnahmen zur Gewährleistung von Authentizität und Glaubwürdigkeit bei sieben biologisch erzeugten Produkten entlang der gesamten Produktionskette. Es zeigt auf, wo Verbesserungen möglich sind und was die Konsumentenschaft tun kann, um diese Bemühungen zu unterstützen. Weitere Informationsblätter für Konsumenten informieren über «Geschmack, Frische und Nährstoffe» sowie «Sicherheit und Kontamination». Zusätzliche Informationsblätter sprechen den Handel und die Produzierenden an.
Tipo: Book
Palavras-chave: Food security; Food quality and human health.
Ano: 2005
URL: http://orgprints.org/4962/1/4_betrug.pdf

Authentizität und Sicherheit von Möhrenproben im Rahmen des  CORE-Organic QACCP Projektes
Provedor de dados: 21
Autores: Kahl, J.; Birlouez, I.; Busscher, N.; Ploeger, A.
Consumer demand for healthy, safe and high quality food is increasing. Against this  background, the demand for organically grown food has been growing rapidly. Organic  farming contains the whole food chain from field to fork. An analyse system to optimise  the process needs to be established (QualityAnalysisCriticalControlPoint). The aim  of the transnational CORE-Organic QACCP project is a chain analysis which addresses  the link between farm and fork and backwards from fork to farm. The objective is  to improve product related quality management in farming and processing. The results  presented here are dealing with food authenticity on farm level through biocrystallization  measurements and food safety through pesticide residue and nitrate...
Tipo: Conference paper, poster, etc.
Palavras-chave: Food security; Food quality and human health.
Ano: 2009
URL: http://orgprints.org/14187/1/Kahl_14187.pdf

Auto-aclareo y guías de densidad para Pinus patula mediante el enfoque de regresión de frontera estocástica
Provedor de dados: 115
Autores: Santiago-García,Wenceslao; De los Santos-Posadas,Héctor M.; Ángeles-Pérez,Gregorio; Valdez-Lazalde,José R.; Del Valle-Paniagua,David H.; Corral-Rivas,J. Javier.
El manejo forestal en la región de Zacualtipán, estado de Hidalgo, México, se ha enfocado en las últimas tres décadas a cultivar rodales coetáneos puros de Pinus patula, la especie maderable nativa con crecimiento más rápido y valor comercial alto. El crecimiento rápido de P. patula requiere un manejo adecuado de la densidad del rodal para programar los aclareos y optimizar el turno de los rodales. En este estudio se determinó la línea máxima de la relación densidad-tamaño o auto-aclareo considerando el enfoque de regresión de frontera estocástica y mínimos cuadrados ordinarios para el modelo de Reineke y Yoda. En la estimación se utilizó información dasométrica derivada de 42 parcelas permanentes de muestreo de 400 m². Las mejores estimaciones de la línea...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pinus patula; Densidad-tamaño; Diagrama de densidad; Índice de densidad.
Ano: 2013
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952013000100007

Autoantibody production in chronic idiopathic urticaria is not associated with Helicobacter pylori infection
Provedor de dados: 56
Autores: Atta,A.M.; Rodrigues,M.Z.A.; Sousa,C.P.; Medeiros Júnior,M.; Sousa-Atta,M.L.B.
Chronic idiopathic urticaria (CIU) is a dermatological syndrome, characterized by raised erythematous skin lesions, that affects 20% of the general population and has been associated with autoimmunity. However, some reports have also suggested a close relationship between CIU and Helicobacter pylori infection, which is endemic in developing countries and associated with chronic gastritis, peptic ulcer disease, and gastric carcinoma. In the present study, we investigated the occurrence of autoantibodies in sera from 23 CIU subjects infected with H. pylori and from 23 CIU subjects without this infection. The presence of anti-thyroid antibodies was determined by indirect hemagglutination assay and the presence of autoantibodies to IgE and C1INH was determined...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Chronic idiopathic urticaria; Autoimmunity; Autoantibodies; Helicobacter pylori.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000100002

Autochthonous probiotic mixture improves biometrical parameters of larvae of Piaractus mesopotamicus (Caracidae, Characiforme, Teleostei)
Provedor de dados: 65
Autores: Guidoli,Marcos Gabriel; Mendoza,Jorge Arnaldo; Falcón,Sofia Lizardo; Boehringer,Silvia Irene; Sánchez,Sebastián; Macías,María Elena Fátima Nader.
ABSTRACT: Probiotics are a novel alternative to antibiotics as growth factors. Previously, our group isolated, selected and tested in vivo, eight autochthonous strains. They showed no significant effects when administered individually. However, the best doses, stages and ways of administration were combined in a multi strain formula. The aim of this research was to evaluate the effect of this probiotic product on the growth and survival of Piaractus mesopotamicus larvae. The administration was implemented during egg incubation and endogenous feeding period (5), during larvae exogenous feeding period (10) and all along the experiment (15). A group without microorganisms was used as control. The probiotic generates significant increments of mean weight and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactic acid bacteria; Bacillus; Pacú; Larviculture.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700652

Autologous transplant: microbial contamination of hematopoietic stem cell products
Provedor de dados: 55
Autores: Almeida,Igor Dullius; Schmalfuss,Tissiana; Röhsig,Liane Marise; Goldani,Luciano Zubaran.
Hematopoietic progenitor cells from peripheral blood (HPCPB) are commonly used for autologous and allogenic transplants in patients with most various onco-hematological diseases, and despite the utilization of sterile techniques during collection and processing of these products, bacterial contamination can occur. This study aimed to investigate the microbial contamination of HPCPB products. Microbial cultures of 837 HPCPB products between the year 2000 and 2009 were retrospectively analyzed to determine the incidence of culture positivity and identify the main organisms that cause contamination. The microbiological studies were performed with an automated system (BacT/Alert® bioMérieux Corporate). Thirty-six (4.3%) of 837 microbial cultures were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autologous transplant; Hematopoietic stem cell products; Microbial contamination; Quality control; Bacterial contamination.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000400006

Auto-lysed yeast and yeast extract effects on dry matter intake, blood cells counts, IgG titer and gene expression of IL-2 in lactating dairy cows under heat stress
Provedor de dados: 2
Autores: Adili, Sogol; Sadeghi, Ali Asghar; Chamani, Mohamad; Shawrang, Parvin; Forodi, Farhad.
The objective of this study was to assess the effects of auto-lysed yeast and yeast extract on performance and immune responses of cows in hot climate in the early lactation period. Twenty five lactating dairy cows randomly assigned to 5 groups and 5 replicates. Cows received basal diet with or without auto-lysed yeast (20 or 40 g/d/head) or yeast extract (20 or 40 g/d/head) as on top-dressed. There were no differences for daily dry matter intake, milk production milk fat and the counts of red blood cells and white blood cells among treatments (p &amp;gt; 0.05). There were significant differences among treatments for immunoglobulin G (IgG) level, lymphocyte and neutrophil percentages. Yeast extract had no effect on IgG level, but auto-lysed yeast increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Immunoglobulin G; Immune response; Interleukin-2; Lymphocyte; Neutrophil immunoglobulin G; Immune response; Interleukin-2; Lymphocyte; Neutrophil.
Ano: 2020
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/48425

Automated Cable Control Irrigation System
Provedor de dados: 18
Autores: Worstell, R.V.; Kemper, W.D.; Kincaid, D.C.
Tipo: Conference or Workshop Item
Palavras-chave: Irrigation control; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1982
URL: http://eprints.nwisrl.ars.usda.gov/1026/1/485.pdf

Automated generation of guidance lines for operational  field planning
Provedor de dados: 21
Autores: Hameed, I.A.; Bochtis, D.D.; Sørensen, C.G; Nørremark, M.
A number of advanced satellite positioning based systems  for agricultural machines have been developed and are commercial available for aiding and supporting navigation  efforts up to full auto-steering. Furthermore, in terms of  the route planning for agricultural field operations, advanced methods based on combinatorial optimisation of fieldwork patterns have recently been introduced. In order to apply and implement these methods in the high-level control system of agricultural machines, an appropriate  representation of the field as a geometrical entity made up of discrete geometric primitives, such as points, lines, and polygons is needed. Preferably, such a representation must be generated in real-time providing the input to the whole accuracy range...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2010
URL: http://orgprints.org/20655/4/20655.pdf

Automated image analysis of seedlings for vigor evaluation of common bean seeds
Provedor de dados: 1
Autores: Gomes Junior, Francisco Guilhien; Universidade de São Paulo; Chamma, Helena Maria Carmignani Pescarin; Universidade de São Paulo; Cicero, Silvio Moure; Universidade de São Paulo.
Quickly and precise evaluations of the vigor of seeds are highly desirable for the success of quality control programs applied to the seed industry. The objective of this experiment was to determine the number of days necessary to calculate the vigor index of common bean seeds using an automated system of seedling images (SVIS®), and compare its results with the traditional tests of seed vigor. Samples of five seed lots of the IAC Carioca cultivar were submitted to germination, accelerated aging, seedling emergence in sand and electrical conductivity tests. The parameters measured by the Seed Vigor Imaging System (SVIS®) were mean seedling length, growth (ratio of the actual seedling growth to the maximum possible growth), uniformity of growth and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris L.; Image analysis; Quality control.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/21957

Automated intelligent rotor tine cultivation and punch planting to improve the selectivity of mechanical intra-row weed control
Provedor de dados: 21
Autores: Rasmussen, Jesper; Griepentrog, Hans W.; Nielsen, J.; Henriksen, Christian Bugge.
There is much emphasis on technical aspects related to sensor or mapping techniques, which enable so-called intelligent cultivators to target the intra-row spaces within crop rows. This study investigates (i) an expected advantage of an intelligent rotor tine cultivator (the cycloid hoe) in terms of crop-weed selectivity and (ii) an expected synergistic effect between  punch planting and post-emergence weed harrowing in terms of improved crop-weed selectivity. Selectivity is defined as the relationship between weed control and associated crop density decline one week after cultivation, and punch planting is a sowing technique where holes are created in the ground with a minimum of soil disturbance and seeds are inserted into them, without soil disturbance...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2012
URL: http://orgprints.org/20603/2/20603.pdf

Automated intelligent rotor tine cultivation and punch planting to improve the selectivity of mechanical intra-row weed control
Provedor de dados: 21
Autores: Rasmussen, Jesper; Griepentrog, Hans W.; Nielsen, J.; Henriksen, Christian Bugge.
There is much emphasis on technical aspects related to sensor or mapping techniques, which enable so-called intelligent cultivators to target the intra-row spaces within crop rows. This study investigates (i) an expected advantage of an intelligent rotor tine cultivator (the cycloid hoe) in terms of crop-weed selectivity and (ii) an expected synergistic effect between  punch planting and post-emergence weed harrowing in terms of improved crop-weed selectivity. Selectivity is defined as the relationship between weed control and associated crop density decline one week after cultivation, and punch planting is a sowing technique where holes are created in the ground with a minimum of soil disturbance and seeds are inserted into them, without soil disturbance...
Tipo: Journal paper
Palavras-chave: Weed management.
Ano: 2012
URL: http://orgprints.org/21136/8/21136.pdf

Automated system of seedling image analysis (SVIS) and electrical conductivity to assess sun hemp seed vigor
Provedor de dados: 95
Autores: Silva,Clíssia Barboza da; Lopes,Magnólia de Mendonça; Marcos-Filho,Julio; Vieira,Roberval Daiton.
The development of new procedures for quickly obtaining accurate information on the physiological potential of seed lots is essential for developing quality control programs for the seed industry. In this study, the effectiveness of an automated system of seedling image analysis (Seed Vigor Imaging System - SVIS) in determining the physiological potential of sun hemp seeds and its relationship with electrical conductivity tests, were evaluated. SVIS evaluations were performed three and four days after sowing and data on the vigor index and the length and uniformity of seedling growth were collected. The electrical conductivity test was made on 50 seed replicates placed in containers with 75 mL of deionised water at 25 ºC and readings were taken after 1, 2,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crotalaria juncea; Seedling image; Software.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000100007

Automated Telemetric Irrigation Controller
Provedor de dados: 18
Autores: Fisher, H.D.; Humpherys, A.S.; Young, D.A.
Tipo: Conference or Workshop Item
Palavras-chave: Irrigation control; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1983
URL: http://eprints.nwisrl.ars.usda.gov/1034/1/512.pdf

Automatic and manual spray bar sections control
Provedor de dados: 70
Autores: Weirich Neto,Pedro H.; Meer,Roderik W. V. D.; Vink,Peter; Justino,Altair; Garcia,Luiz C.
The use of precision farming tools in pesticide application technology can improve the techniques effectiveness during the spraying. Thus, this study aimed to compare automatic and manual systems to interrupt the syrup flow in the spray bar sections when applied in overlapped areas. The sprayings were carried out in eight places in completely randomized design. It was compared the spray consumption and the sprayed area in relation to the total area. The results indicated that in sprays performed with the automatic system there was an average savings of 17.2% of the sprayed volume. The sprayed area using the bar section's automatic control was an average 6.1% lower than the sprayed area with manual control.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Precision farming and pesticide application technology.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000600015

Automatic controller to water plants
Provedor de dados: 63
Autores: Medici,Leonardo Oliveira; Rocha,Hermes Soares da; Carvalho,Daniel Fonseca de; Pimentel,Carlos; Azevedo,Ricardo Antunes.
Despite the massive demand of water for plant irrigation, there are few devices being used in the automation of this process in agriculture. This work evaluates a simple controller to water plants automatically that can be set up with low cost commercial materials, which are large-scale produced. This controller is composed by a ceramic capsule used in common domestic water filters; a plastic tube around 1.5 m long, and a pressostate used in domestic washing machines. The capsule and the pressostate are connected through the tube so that all parts are filled with water. The ceramic capsule is the sensor of the controller and has to be placed into the plant substrate. The pressostate has to be placed below the sensor and the lower it is, the higher is the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation; Water tension; Automation; Low cost.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000600016

Automatic Controls for Surface Irrigation Systems
Provedor de dados: 18
Autores: Humpherys, Allan S.
Tipo: Conference or Workshop Item
Palavras-chave: Irrigation control; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1974
URL: http://eprints.nwisrl.ars.usda.gov/994/1/310.pdf

Automatic Fish Ageing (AFISA)
Provedor de dados: 5
Autores: Mahe, Kelig; Parisi, Vincenc; Carbini, Sebastien; Soria, J.a.; Harbitz, A; De Pontual, Helene; Cotano, U; Songer, S; Millner, R; Lewy, P; Gudmundsson, E.f; Fablet, Ronan; Benzinou, Abdesslam.
Most of the fish stocks are assessed using age-based models, however age estimations using otoliths costs several million euros annually. In this context, Automatic Fish Ageing (EU Project) would provide means to standardize ageing among laboratories and build interpreted image databases ensuring the information conservation. Automation improves growth studies while reducing the cost of the acquisition of age data. The whole processing chain from the acquisition of otolith data to the actual ageing issue using pattern recognition or statistical inference has been realised for three case studies : a) Cod (Gadus morhua ; Faeroes, North Sea, North East Arctic) b) Anchovy (Engraulis encrasicolus ; Bay of Biscay) c) Plaice (Pleuronectes platessa, Eastern...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00011/12270/10548.pdf

Automatic Water Control Structures for Surface Irrigation (Summarized)
Provedor de dados: 18
Autores: Humpherys, A.S.
Many improvements have been made in irrigation methods  and equipment in recent years. However, surface irrigation has not benefited from automation and still requires much hand labor. In addition to this high labor requirement, an excessive amount of water is often used. This is particularly true in areas where water is relatively cheap and labor is scarce. Further improvement in surface  irrigation methods and equipment using mechanized automated  control structures will enable the farmer to apply water with a  minimum of labor and to obtain maximum use from the water, thus conserving his resources.
Tipo: Article
Palavras-chave: Irrigation control; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1966
URL: http://eprints.nwisrl.ars.usda.gov/1229/1/45.pdf

AUTOMATION IRRIGATION SYSTEM WITH MONITORING FROM A WEB APPLICATION
Provedor de dados: 107
Autores: Correia, Gustavo Rissari; Rocha, Helder Roberto de Oliveira; Rissino, Silvia das Dores.
This work presents a proposal to develop a prototype of low cost (Arduino platform) for monitoring and automatic control of irrigation, with remote activation via web application. The work consisted of building physical device (hardware), software (access via the web and Android OS) and field testing. Using open source (open source), automation equipment and remote communication tools. The system also has a set of algorithms that allow the best use of water resources from information collected from sensors embedded in the environment that will be subject to irrigation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recursos Hídricos e Ambientais agricultura; Android; Arduino; Evapotranspiração; Wireless; Web.
Ano: 2016
URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/675

Automation of lettuce seedlings irrigation with sensors deployed in the substrate or at the atmosphere
Provedor de dados: 63
Autores: Bezerra,Ana Carolina Mendes; Valença,David da Cunha; Carvalho,Daniel Fonseca de; Pinho,Camila Ferreira de; Reinert,Fernanda; Gomes,Daniela Pinto; Gabetto,Fernanda Palmeira; Azevedo,Ricardo Antunes; Masseroni,Daniele; Medici,Leonardo Oliveira.
ABSTRACT: Seedling production is an important step in the lettuce production system. However, there is a tendency to apply excessive irrigation at this stage. The aim of this study was to test the use of the Simplified Irrigation Controller (SIC) under two conditions: first, with the sensor installed in the substrate (measuring the soil water tension) and second, in the atmosphere (“atmospheric” - responding to vapor demand in the atmosphere) to control the irrigation of lettuce seedlings. The performance of the SIC was evaluated by monitoring plant traits. The lettuce seeds of the Regina cultivar were sown in styrofoam trays with commercial organic substrate. Both experiments were conducted under greenhouse conditions and evaluated under different SIC...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactuca sativa L.; Simplified Irrigation Controller; Water use efficiency.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001200179

Automatische Lenksysteme zur Unterstützung der mechanischen Beikrautregulierung
Provedor de dados: 21
Autores: Staub, S.; Brell, S.
Weed management without herbicides in production of field vegetables is very time consuming and therefore costly. After every mechanical treatment a weeding by hand is necessary for a satisfactory weed control. To minimize the weeding automatic  steering systems connected to a shifting frame can support the mechanical weeding by making it more precise and reducing the remaining weeds in the row. Field studies in the year 2016 showed advantages and disadvantages of the systems.
Tipo: Conference paper, poster, etc.
Palavras-chave: Buildings and machinery; Weed management.
Ano: 2017
URL: http://orgprints.org/31569/1/Automatische%20Lenksysteme%20zur%20Unterst%C3%BCtzung%20der.pdf

Automatisering av mekanisk ogräsbekämpning
Provedor de dados: 21
Idag rensas ogräs oftast för hand i KRAV-odlingen. Detta är relativt dyrt och det är svårt att hitta personer som vill utföra detta jobb. För att öka volymen av de ekologiskt odlade grödorna behövs det en automatisering av ogräsbekämpningen. Målet med detta forskningsprojekt är att utveckla metoder för att kunna styra en maskin så att den kan rensa ogräs mekaniskt på egen hand. Maskinen kommer att vara utrustad med två bildbehandlingssystem: en framåtriktad kamera för att kunna känna igen raderna som gör det möjligt för maskinen att exakt kunna följa raderna på egen hand. Den andra, nedåtriktade, kameran har som uppgift att kunna skilja mellan plantan och ogräs och att styra ett mekaniskt ogräsrensningsverktyg monterat på maskinen. Den centrala...
Tipo: Project description
Palavras-chave: Weed management; Buildings and machinery.
Ano: 2023

Automatiske redskaber til ukrudtsbekæmpelse
Provedor de dados: 21
Autores: Nørremark, Michael; Melander, Bo.
New technologies for automatic weed control in row crops are presented
Tipo: Newspaper or magazine article
Palavras-chave: Weed management.
Ano: 2009
URL: http://orgprints.org/16221/1/16221.pdf

Automatización de un sistema de fertirrigación por goteo
Provedor de dados: 32
Autores: Cruz Bautista, Fidencio.
Se desarrolló un programa de cómputo para el manejo y control de la fertirrigación, en el  lenguaje de programación Edlog, y se empleó un Datalogger CR10X, de la compañía  Campbell Scientific, como dispositivo de control. Esto, con la finalidad de contar con una  herramienta para calcular de manera automática la cantidad diaria de solución nutritiva  para un cultivo, en función de sus etapas fenológicas y aplicarla en el momento  oportuno. Para esto, se generó una curva de distribución para una solución nutritiva tipo  Steiner, de la cual se obtuvo la función polinómica (y =-0.0018x3 + 0.2114x2 + 0.2806x  +136.93) utilizada en la subrutina de fertirrigación, para el cálculo de la cantidad diaria  de la solución nutritiva (mg L-1) para la calabaza Zucchini...
Tipo: Tesis
Palavras-chave: Maestría; Hidrociencias.
Ano: 2007
URL: http://hdl.handle.net/10521/1249

Automatización del riego con base en dispositivos móviles.
Provedor de dados: 32
Autores: Lugo Espinosa, Oziel.
El riego proporciona a la planta el agua imprescindible para su crecimiento y desarrollo. Para garantizar el riego adecuado, pero aprovechando al máximo los caudales de agua disponibles, se pueden utilizar sistemas de riego con programación de control automático, para asegurar el suministro cuando y en la cantidad que la planta necesite, para evitar el desperdicio de agua. Se trata de sistemas que activan el riego espontáneamente, en función de la valoración continua de uno o varios parámetros o variables de control. Este trabajo presenta un prototipo para automatizar el riego en una zona con distintos cultivos, donde cada uno de ellos recibe la cantidad de agua necesaria en el momento que se requiera para un óptimo crecimiento. El prototipo consiste en...
Palavras-chave: Automatización; Riego; Balance hídrico; Multicultivo; Automatization; Irrigation; Hydric balance; Multi-crop; Doctorado; Hidrociencias.
Ano: 2010
URL: http://hdl.handle.net/10521/179

Automatización del riego con base en dispositivos móviles.
Provedor de dados: 32
Autores: Lugo Espinosa, Oziel.
El riego proporciona a la planta el agua imprescindible para su crecimiento y desarrollo. Para garantizar el riego adecuado, pero aprovechando al máximo los caudales de agua disponibles, se pueden utilizar sistemas de riego con programación de control automático, para asegurar el suministro cuando y en la cantidad que la planta necesite, para evitar el desperdicio de agua. Se trata de sistemas que activan el riego espontáneamente, en función de la valoración continua de uno o varios parámetros o variables de control. Este trabajo presenta un prototipo para automatizar el riego en una zona con distintos cultivos, donde cada uno de ellos recibe la cantidad de agua necesaria en el momento que se requiera para un óptimo crecimiento. El prototipo consiste en...
Palavras-chave: Automatización; Riego; Balance hídrico; Multicultivo; Automatization; Irrigation; Hydric balance; Multi-crop; Doctorado; Hidrociencias.
Ano: 2010
URL: http://hdl.handle.net/10521/179

Automatización del riego en sustratos
Provedor de dados: 32
Autores: Ríos González, Pedro.
En México existe la necesidad de desarrollar tecnología de bajo costo para sistemas de producción agrícola por tal razón, se desarrolló un sistema de riego automatizado para sustratos, que controla la frecuencia de riego a partir de los requerimientos de la especie y naturaleza del sustrato. Se realizó la caracterización física de los sustratos (agrolita, fibra de coco, arena, peat-moss, tezontle y tepojal) y se diseñó un sustrato (mezcla) con el método de Zamora (2005). Se seleccionó el sensor de humedad  ECHO EC5  por  su baja respuesta a la conductividad eléctrica y se obtuvo la función de ajuste del contenido de humedad y la señal del sensor. El sistema de riego se integró por: un sistema electrónico de adquisición de datos y control (microcontrolador...
Tipo: Thesis
Palavras-chave: Automatización; Sistema de riego; Microcontrolador; Sustratos; Sensor de humedad del suelo; Automation; Irrigation system; Micro controller; Substrates; Soil moisture sensor; Maestría; Hidrociencias.
Ano: 2010
URL: http://hdl.handle.net/10521/133

Automatización del riego en sustratos
Provedor de dados: 32
Autores: Ríos González, Pedro.
En México existe la necesidad de desarrollar tecnología de bajo costo para sistemas de producción agrícola por tal razón, se desarrolló un sistema de riego automatizado para sustratos, que controla la frecuencia de riego a partir de los requerimientos de la especie y naturaleza del sustrato. Se realizó la caracterización física de los sustratos (agrolita, fibra de coco, arena, peat-moss, tezontle y tepojal) y se diseñó un sustrato (mezcla) con el método de Zamora (2005). Se seleccionó el sensor de humedad  ECHO EC5  por  su baja respuesta a la conductividad eléctrica y se obtuvo la función de ajuste del contenido de humedad y la señal del sensor. El sistema de riego se integró por: un sistema electrónico de adquisición de datos y control (microcontrolador...
Tipo: Thesis
Palavras-chave: Automatización; Sistema de riego; Microcontrolador; Sustratos; Sensor de humedad del suelo; Automation; Irrigation system; Micro controller; Substrates; Soil moisture sensor; Maestría; Hidrociencias.
Ano: 2010
URL: http://hdl.handle.net/10521/133

Autonomic control of cardiorespiratory interactions in fish, amphibians and reptiles
Provedor de dados: 56
Autores: Taylor,E.W.; Leite,C.A.C.; Skovgaard,N.
Control of the heart rate and cardiorespiratory interactions (CRI) is predominantly parasympathetic in all jawed vertebrates, with the sympathetic nervous system having some influence in tetrapods. Respiratory sinus arrhythmia (RSA) has been described as a solely mammalian phenomenon but respiration-related beat-to-beat control of the heart has been described in fish and reptiles. Though they are both important, the relative roles of feed-forward central control and peripheral reflexes in generating CRI vary between groups of fishes and probably between other vertebrates. CRI may relate to two locations for the vagal preganglionic neurons (VPN) and in particular cardiac VPN in the brainstem. This has been described in representatives from all vertebrate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cardiorespiratory interactions; Autonomic nervous system; Cardiac vagal preganglionic neurons; Central interactions; Peripheral reflex control; Non-adrenergic-non-cholinergic (NANC) control of heart rate.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000700001

Autonomic modulation of heart rate of young and postmenopausal women undergoing estrogen therapy
Provedor de dados: 56
Autores: Neves,V.F.C.; Silva de Sá,M.F.; Gallo Jr.,L.; Catai,A.M.; Martins,L.E.B.; Crescêncio,J.C.; Perpétuo,N.M.; Silva,E.
The aim of the present study was to determine whether estrogen therapy (ET) reduces alterations of the autonomic control of heart rate (HR) due to hypoestrogenism and aging. Thirteen young (24 ± 2.6 years), 10 postmenopausal (53 ± 4.6 years) undergoing ET (PM-ET), and 14 postmenopausal (56 ± 2.6 years) women not undergoing ET (PM) were studied. ET consisted of 0.625 mg/day conjugated equine estrogen. HR was recorded continuously for 8 min at rest in the supine and sitting positions. HR variability (HRV) was analyzed by time (SDNN and rMSSD indices) and frequency domain methods. Power spectral components are reported as normalized units (nu) at low (LF) and high (HF) frequencies, and as LF/HF ratio. Intergroup comparisons: SDNN index was higher in young...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heart rate variability; Aging; Menopause; Estrogen therapy.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000400007

Autonomic nervous system dysfunction in children with severe tetanus: dissociation of cardiac and vascular sympathetic control
Provedor de dados: 56
Autores: Mazzei de Davila,C.A.; Davila,D.F.; Donis,J.H.; Gonzalo,X.
The medical records of ten pediatric patients with a clinical diagnosis of tetanus were reviewed retrospectively. The heart rate and blood pressure of all tetanus patients were measured noninvasively every hour during the first two weeks of hospitalization. Six of ten tetanus patients presented clinical evidence of sympathetic hyperactivity (group A) and were compared with a control group consisting of four children who required mechanical ventilation for diseases other than tetanus (group B). Heart rate and blood pressure simultaneously and progressively increased to a maximum by day 7. The increase over baseline was 43.70 ± 11.77 bpm (mean ± SD) for heart rate (P&lt;0.01) and 38.60 ± 26.40 mmHg for blood pressure (P&lt;0.01). These values were higher and...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Tetanus patients; Sympathetic control; Autonomic dysfunction; Blood pressure; Heart rate.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000600018

Autonomous Inter-Row Hoeing using GPS-based side-shift Control
Provedor de dados: 111
Autores: H. W Griepentrog; M. Noerremark; J. Nielsen; J. S Ibarra.
Several developments and investigations have been done to automate the lateral control of hoes with the aim to achieve higher weeding efficiency and decreased labor costs. The aim of this project was to investigate the accuracy and limitations for a computer controlled hoeing operation based on a GPS system. A conventional hoe and an electro-hydraulic side shift frame was used and attached to a small automatic tractor. The main task of the controller systems was to minimize the lateral deviations between current GPS positions of the hoe related to a predefined route. The range of the cross track errors (standard deviations) altered between 0.009 m and 0.028 m for the hoe (ground measurements). The hoe system enables hoeing up to 83% of a field surface area...
Ano: 1969
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/936

Autonomous Utility Mower
Provedor de dados: 111
Autores: M. Zeitzew.
Two off-the-shelf John Deere utility mowers were modified for X-by-wire control for the purposes of constructing autonomous vehicles usable in sports-turf mowing applications. The purpose of these mules was to enable the gathering of requirements and customer feedback on such a system. The environment selected initially was that of a baseball stadium. These areas can be characterized as flat, highly controlled and well-groomed, for which precise mowing patterns are necessities. Typically the operators of these mowers are highly skilled; an autonomous system has the benefits of saving time and labor, permitting the efficient usage of less-skilled employees, and allowing skilled personnel to focus on more complex tasks (such as infield mowing and warning...
Ano: 1969
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/947

Autoradiographic thyroid evaluation in short-term experimental diabetes mellitus
Provedor de dados: 56
Autores: Nascimento-Saba,C.C.A.; Brito,A.C.; Pereira,M.J.S.; Carvalho,J.J.; Rosenthal,D.
Previous studies have shown that in vitro thyroid peroxidase (TPO) iodide oxidation activity is decreased and thyroid T4-5'-deiodinase activity is increased 15 days after induction of experimental diabetes mellitus (DM). In the present study we used thyroid histoautoradiography, an indirect assay of in vivo TPO activity, to determine the possible parallelism between the in vitro and in vivo changes induced by experimental DM. DM was induced in male Wistar rats (about 250 g body weight) by a single ip streptozotocin injection (45 mg/kg), while control (C) animals received a single injection of the vehicle. Seven and 30 days after diabetes induction, each diabetic and control animal was given ip a tracer dose of 125I (2 µCi), 2.5 h before thyroid excision....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thyroid; Diabetes mellitus; Autohistoradiography; Rat.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000200013

Autotoxicidad en Tithonia tubaeformis como un posible mecanismo de control a la invasión
Provedor de dados: 67
Autores: Juárez,Víctor D; Cazón,Ada V.
El noroeste argentino está invadido por Tithonia tubaeformis, planta originaria de México. Se encuentra como maleza en cultivos de maíz, sorgo y poroto. Extractos acuosos de la parte aérea de Tithonia tubaeformis fueron fraccionados en n-hexano, cloroformo y acetato de etilo. El extracto clorofórmico de tallos/hojas presentó menor porcentaje de germinación. Por cromatografía TLC sobre sílica gel se separó un flavonoide (5,3´-dihidroxi-7,4´-dimetoxiflavona) y se determinó su estructura por métodos espectroscópicos. Se realizaron bioensayos con tres concentraciones del flavonoide (0.5, 1.5 y 3.5 mg/mL). Se encontró un mayor efecto inhibidor a la concentración más alta.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aleloquímicos; Flavonoides; Alelopatía; Cromatografía; Fitotóxico.
Ano: 2003
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2003000200002

AUTOTOXICITY IN TOUGH LOVEGRASS ( Eragrostis plana )
Provedor de dados: 87
Autores: FAVARETTO,A.; SCHEFFER-BASSO,S.M.; PEREZ,N.B.
ABSTRACT Autotoxicity in tough lovegrass has been analyzed in the field, but has never been tested in allelopathy bioassays. Therefore, this study aimed to verify and compare the autotoxicity of leaves and roots from aqueous extracts of tough lovegrass on its germination and early seedling growth. Extracts of green leaves (GL), senescent leaves (SL), and roots (R) at concentrations of 0.05, 0.15, and 0.25 g mL-1 were analyzed on how they affected seed germination and seedling growth. The extracts, regardless of the source or concentration of the material used, have significantly reduced germination percentage, index of germination speed, and root growth of seedlings of tough lovegrass. Effects on mean germination time and shoot length varied according to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Aqueous extracts; Eragrostis plana; Germination.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100241

Autumn acaricide applications as a new strategy to control the pear leaf blister mite Eriophyes pyri
Provedor de dados: 21
Autores: Daniel, Claudia; Linder, Christian; Wyss, Eric.
The pear leaf blister mite Eriophyes pyri (Pagenstecher) causes severe damage to pear leaves and fruits. As mites are well sheltered from exposure to plant protection agents during summer and acaricide efﬁcacy is reduced when temperatures are low in early spring, autumn acaricide applications were evaluated to control mites as they migrate to their hibernation sites. Post-harvest sulphur and mineral oil treatments were applied in September 2003 and mites were monitored in the following spring. Only the sulphur treated trees were virtually free of blisters. Sulphur treatments showed an efﬁcacy of 95.3% (one application) to 99.6% (three applications), whereas, mineral oil treatments only had an efﬁcacy of 12.8% (one application) to 69.6% (three...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2007
URL: http://orgprints.org/13124/1/daniel-etal-2007-CropProtectionSchwefelPockenmilbe.pdf

Autumn applications of sulphur – a new approach to control the pear leaf blister  mite Eriophyes pyri
Provedor de dados: 21
Autores: Daniel, Claudia; Linder, Christian; Wyss, Eric.
The pear leaf blister mite can cause severe damages to pear trees. By their hidden way of living inside  the leaf blisters, the mites are protected from plant protection agents. Until now, oil treatments  in early spring, when the mites leave their hibernation sites and invade the young leaves, are the  only possibility to control these mites. Because of the low temperatures during this period (February/  March) the efficacy of pesticides is often not reliable. The aim of this study was to assess the effects  of sulphur applied after harvest at the time, when mites are leaving the blisters and migrate to  the hibernation sites. The treatments were applied shortly after harvest to benefit from the mild temperatures  in September. Visual controls in...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006
URL: http://orgprints.org/13770/1/ecofruit_12th_9.pdf

Autumn Maize Intercropped with Tropical Forages: Crop Residues, Nutrient Cycling, Subsequent Soybean and Soil Quality
Provedor de dados: 90
Autores: Pereira,Francisco Cézar Belchor Lages; Mello,Luiz Malcolm Mano de; Pariz,Cristiano Magalhães; Mendonça,Veridiana Zocoler de; Yano,Élcio Hiroyoshi; Miranda,Elka Elice Vasco de; Crusciol,Carlos Alexandre Costa.
ABSTRACT Autumn maize intercropped with tropical forages can raise the amount of crop residues and improve nutrient cycling, favoring subsequent soybean crop. The objective of this study was to evaluate the effect of forms of implementation of intercropping of irrigated autumn maize with tropical forages on yield, decomposition, nutrient accumulation and release, and on the ratio of lignin/total N of forage residues, yield components, and grain yield of subsequent soybean, and on soil physical and chemical properties, under no-tillage in lowland Cerrado. The experiment was arranged in randomized blocks in a factorial (4 × 3 + 1) design with one control and four replications. The treatments consisted of four forages: Palisade grass, Congo grass, and two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lowland Cerrado; No-tillage system; Crop residues; Panicum; Urochloa.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100518

Autumn sown catch crop understoreys as strategy to reduce nitrate leaching in winter cereals
Provedor de dados: 21
Autores: Loges, Ralf; Mauscherning, Inken; Taube, Friedhelm.
Under conditions with wet mild winters due to high nitrate leaching risk growing systems with high nitrogen (N) uptake efficiency in autumn are necessary, especially after pre crops with a high N release. In 2003 and 2004 a field trial was conducted in Northern Germany to investigate autumn N uptake and nitrate leaching in autumn sown winter wheat (Triticum aestivum L.) and winter oilseed rape (Brassica napus) grown intercropped with catch crops. Catch crops in pure stands were sown as control. In each system three catch crops common vetch (Vicia sativa), forage rape (Brassica napus) and oats (Avena sativa) were tested simultaneously. The experiment was run parallel after grass clover (high N status) and oats (low N status). N uptake, soil mineral nitrogen...
Tipo: Conference paper, poster, etc.
Palavras-chave: Nutrient turnover; Air and water emissions.
Ano: 2008
URL: http://orgprints.org/12535/1/Loges_12535_ed.doc

Availability of betaine present in fine wheat bran in diets for growing pigs
Provedor de dados: 96
Autores: Somensi,Marcelo Luiz; Monteiro,Alessandra Nardina Trícia Rigo; Bockor,Luciane; Marx,Fábio Ritter; Vieira,Marcia de Souza; Kessler,Alexandre de Mello.
ABSTRACT The objective of this paper was to investigate the availability of betaine present in fine wheat bran (FWB) in diets for growing pigs. We used thirty crossbred intact males, housed individually in metabolic cages and distributed in a randomized block design, with five treatments and six replicates. Blocks consisted of two periods of 15 days. Average initial body weights were 32.00±1.30 and 44.90±1.32 kg, in the first and second periods, respectively. Treatments were modified only at the level of methionine plus cysteine (Met+Cys) required and the Met+Cys sources, consisting of a negative control (NC), formulated with 80% of Met+Cys requirements, and four positive controls (PC): PCMet - NC supplemented with 1.2 g kg−1 of DL-methionine; PCBet - NC...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Byproduct; Methionine; Nutrition; Swine.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100500

Available content, surface runoff and leaching of phosphorus forms in a typic hapludalf treated with organic and mineral nutrient sources
Provedor de dados: 90
Autores: Lourenzi,Cledimar Rogério; Ceretta,Carlos Alberto; Cerini,Jackson Berticelli; Ferreira,Paulo Ademar Avelar; Lorensini,Felipe; Girotto,Eduardo; Tiecher,Tadeu Luis; Schapanski,Dênis Eduardo; Brunetto,Gustavo.
The application of animal manure to soil can increase phosphorus availability to plants and enhance transfer of the nutrient solution drained from the soil surface or leached into the soil profile. The aim of this study was to evaluate the effect of successive applications of organic and mineral nutrient sources on the available content, surface runoff and leaching of P forms in a Typic Hapludalf in no-tillage systems. Experiment 1 was set up in 2004 in the experimental area of UFSM, in Santa Maria (RS, Brazil). The treatments consisted of: control (without nutrient application) and application of pig slurry (PS), pig deep-litter (PL), cattle slurry (CS), and mineral fertilizers (NPK). The rates were determined to meet the N crop requirements of no-tillage...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Organic waste; Nutrient release; Environmental contamination; No-tillage system.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200019

Available phosphorus levels in diets supplemented with phytase for male broilers aged 22 to 42 days kept in a high-temperature environment
Provedor de dados: 96
Autores: Tizziani,Tarciso; Donzele,Rita Flávia Miranda de Oliveira; Donzele,Juarez Lopes; Balbino,Eric Márcio; Silva,Amanda Dione; Figueiredo,Érika Martins de; Muniz,Jorge Cunha Lima; Jacob,Rodrigo de Freitas.
ABSTRACT This study was conducted to evaluate the effect of reduction of the available phosphorus (avP) in diets supplemented with 500 FTU/kg phytase on performance, carcass characteristics, and bone mineralization of broilers aged 22 to 42 days kept in a high-temperature environment. A total of 336 Cobb broilers with an average initial weight of 0.883±0.005 kg were distributed in a completely randomized design with six treatments - a positive control (0.354 and 0.309% avP without addition of bacterial phytase for the phases of 22 to 33 and 34 to 42 days, respectively), and another five diets with inclusion of phytase (500 FTU) and reduction of the level of avP (0.354, 0.294, 0.233, 0.173, and 0.112%; and 0.309, 0.258, 0.207, 0.156, and 0.106% for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bone mineralization; Carcass characteristics; Heat stress; Performance; Thermal environment.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000200048

Available soil water upper limit by modeling and direct determination in a greenhouse
Provedor de dados: 22
Autores: Campos, Matheus Pena; Rufini, José Carlos Moraes; Silva, Bruno Montoani; Sousa, Saulo Saturnino de; Magalhães, Deniete Soares; Campos, Pedro Henrique Pena.
Pot capacity (PC) is a direct method of determining field capacity (FC) for experiments with plantings in pots. The objective of this study was to evaluate different laboratory methods to determine field capacity and compare them with the pot capacity method. The experimental design was completely randomized (CRD), with nine treatments (methods of obtaining FC) and four replications, totaling 36 experimental plots. The mean values of moisture contents in the FC of the nine methods were compared, being eight empirically obtained and one directly in the greenhouse, defined as a control treatment (PC). The relative accuracy (RA) for all treatments was determined in relation to the control treatment. The estimation of the upper limit of available water in the...
Tipo: Info:eu-repo/semantics/article
Ano: 2019
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/22643

Avaliação agronômica de acessos de Arachis spp. em Planaltina, DF.
Provedor de dados: 14
Autores: FERNANDES, F. D.; CARVALHO, M. A.; ANDRADE, R. P. de; KARIA, C. T.; RAMOS, A. K. B.; GOMES, A. C.; SOUZA, M. A. de.
RESUMO: O ensaio objetivou avaliar a adaptabilidade de acessos de Arachis spp. em várzea (solo Glei Pouco Húmico) na Embrapa Cerrados, Planaltina, DF, no período de novembro de 1998 a maio de 2002. O plantio foi realizado com material vegetativo (estolões) em parcelas constituídas de quatro linhas de 2 m de comprimento, espaçadas entre si em 0,5 metro, com área total de 4 metros quadrados e área útil de 1 metro quadrado. O delineamento experimental foi o de blocos ao acaso com quatro repetições. Os tratamentos estudados consistiram de dez acessos de Arachis spp. (BRA 15121, BRA 22683, BRA 30333, BRA 30872, BRA 31496, BRA 31534, BRA 31828, BRA 31801 e BRA 13251). A cultivar de Arachis pintoi cv. Amarillo (BRA 13251) foi utilizada como testemunha. As...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Feed legumes; Peanut; Tropical legume.; Amendoim; Leguminosa Forrageira; Leguminosa Tropical; Valor Nutritivo.; Arachis pintoi; Nutritive value.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569021

Avaliação clínica da infecção experimental de bezerros com Salmonella Dublin
Provedor de dados: 45
Autores: Silva,D.G.; Silva,P.R.L.; Fagliari,J.J.; Ávila,F.A; Alessi,A.C.; Oliveira,R.G.
The clinical conditions of healthy calves infected with experimental 10(8)CFU of Salmonella Dublin were evaluated and the viability of the experimental model in disease induction in calves was verified. Twelve 10 to 15-day-old male Holstein calves were examined. They were allocated into two groups, control and experimentally infected with 10(8)CFU of Salmonella Dublin. Animals were submitted to clinical examination after inoculation and at every 12 hours, during seven days after the experimental infection. Samples of rectal swabs were collected for Salmonella Dublin isolation. All animals had severe diarrhea, with mucus and bleeding, 12 to 84 hours after the experimental infection with Salmonella Dublin, accompanied by fever, dehydration and respiratory...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bezerro; Salmonella Dublin; Salmonelose.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000100034

Avaliação clínica da infecção experimental de bezerros com Salmonella Typhimurium
Provedor de dados: 45
Autores: Ávila,L.G.; Silva,D.G.; Sato,R.A.; Fagliari,J.J.
The clinical conditions of healthy calves infected with 10(9) CFU of Salmonella Typhimurium were evaluated and the viability of the experimental model in disease induction was verified. Twelve male Holstein calves, 10 to 15-days old, were examined. They were allocated into two groups, control and experimentally infected. Animals were submitted to clinical examination after inoculation and at every 24 hours, during six days after infection. Samples of rectal swabs were collected for Salmonella Typhimurium isolation. Results showed that all animals had different degrees of diarrhea, with mucus and bleeding, 24 to 72 hours after experimental infection with Salmonella Typhimurium, accompanied by fever, but no signs of sepsis. The isolation of Salmonella...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calf; Salmonellosis; Diarrhea.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000600043

Avaliação da arginina dietética sobre a resposta imunológica de frangos de corte imunizados contra a Doença de Gumboro - doi: 10.4025/actascianimsci.v33i2.9738
Provedor de dados: 2
Autores: Fernandes, Jovanir Inês Müller; Universidade Federal do Paraná; Rosa, Daniela Dalla; UFPR - Palotina; Ribeiro, Mayra Vissotto; UFPR-Palotina; Lima, Edna Tereza de; UFPR - Palotina; Fernandes, Nelson Luis Mello; UFPR - Palotina.
O estudo foi realizado com o objetivo de avaliar o efeito da suplementação de Arginina (Arg) sobre a resposta imune humoral e o desenvolvimento dos órgãos linfoides de frangos de corte imunizados contra a Doença de Gumboro. Foram utilizados 640 pintos de corte, distribuídos aleatoriamente em um delineamento inteiramente casualizado com quatro tratamentos (1. Controle, 2. Imunização, 3. Imunização + suplementação de L-Arg e 4. Suplementação de L-Arg.) e oito repetições de 20 aves cada. As aves dos tratamentos 3 e 4 foram imunizadas no 16&amp;deg; dia, contra a Doença de Gumboro (cepa intermediária plus). Amostras de soro das aves com 14, 21, 28 e 35 dias de idade foram analisadas por ELISA para detecção de título de anticorpos contra a Doença de Gumboro e...
Tipo: Pesquisa de campo
Palavras-chave: 5.04.03.01-0 Aminoácido; Doença infecciosa da Bursa de Fabrício; Sistema imune; Título de anticorpos; Bolsa cloacal Nutrição animal amino acid; Infectious bursal disease; Immune system; Antibody titers; Cloacal bursa.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/9738

Avaliação da carga parasitária de helmintos e protozoários em bezerros manejados em sistema orgânico
Provedor de dados: 21
Autores: da Silva, Jenevaldo Barbosa; Soares, João Paulo Guimarães; da Fonseca, Adivaldo Henrique.
O objetivo do presente trabalho foi avaliar a influênciada eliminação de ovos de helmintos e protozoários nas fezes de bezerros mantidos em sistema orgânico de produção. De janeiro de 2008 a dezembro de 2009, foram realizados quinzenalmente exames coproparasitológicos de 18 bezerros manejados em sistema rotativo de pastagens na Embrapa Agrobiologia. Os dados médios de contagem de ovos foram submetidos ao teste de Kruskal Willis e os valores percentuais da contagem de larvas ao teste de qui-quadrado. A contagem média de ovos por grama de fezes (OPG) variou de 250 a 800, caracterizando infecção leve a moderada. Animais com idade inferior a seis meses apresentaram OPG significativamentesuperiores (p&lt;0,005) aos de faixa etária entre seis e doze meses. Os...
Tipo: Journal paper
Palavras-chave: Dairy cattle; "Organics" in general.
Ano: 2012
URL: http://orgprints.org/21466/1/21466.pdf

Avaliação da eficiência de doses de Imazaquin em mistura com graminicidas, no controle das principais plantas invasoras da soja.
Provedor de dados: 14
Autores: ROMAN, E. S.
bitstream/item/158085/1/ID12158-1989-1990sojaresultados-p92-99.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Planta daninha; Brasil; Soybean; Weed; Herbicide.; Acanthospermum australe; Brachiaria Plantaginea; Bidens Pilosa; Controle Químico; Euphorbia Heterophylla; Herbicida; Richardia Brasiliensis.; Brazil; Sida rhombifolia; Chemical control.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/823942

Avaliação da eficiência de fungicidas no controle de Microcyclus ulei, em viveiro.
Provedor de dados: 14
Autores: SANTOS, A. F. dos; PEREIRA, J. C. R.
Apresentam-se resultados da eficiencia de alguns novos fungicidas em comparacao com os produtos rotineiramente empregados no controle de Microcyclus ulei. Os fungicidas Mancozeb, Clorotalonil, Triadimefon e Triforine proporcionaram boa eficacia de controle. Dentre os novos produtos testados, Fenarimol e Bitertanol foram os mais eficazes, nao diferindo estatisticamente dos melhores tratamentos. Outros experimentos estao sendo conduzidos objetivando recomendacao para nivel de produtor.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Mal-das-folhas; Brasil; Bahia; Rubber tree; Species; Fungal diseases; Nursery.; Controle Químico; Doença; Espécie; Fungicida; Folha; Fungo; Hevea; Microcyclus Ulei; Seringueira; Viveiro.; Chemical control; Fungicides; Leaves.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665419

Avaliacao da eficiencia de herbicidas em seringal adulto no sul da Bahia.
Provedor de dados: 14
Autores: LIMA, A. de A.; PEREIRA, R. C.
Foram realizados dois experimentos visando avaliar a eficiencia de herbicidas e diversas combinacoes aplicadas em pos-emergencia no controle das plantas daninhas na cultura da seringueira no sul da Bahia.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Capim-papua; Tiririca-fina; Scleria pterota; Capuchinho-do-campo; Caminho-de-roca; Vernonia scorpioides; Brasil; Bahia; Rubber tree; Species; Treatment date; Herbicides evaluation.; Controle Químico; Erva Daninha; Espécie; Herbicida; Hevea; Paspalum Conjugatum; Pós-Emergência; Seringueira.; Hydrocotyle bonariensis; Chemical control; Weeds.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665278

Avaliacao da eficiencia de herbicidas em seringal em formacao no sul da Bahia.
Provedor de dados: 14
Autores: LIMA, A. de A.; PEREIRA, R. C.
Considerando a necessidade de selecionar herbicidas para o controle de plantas daninhas predominantes na cultura da seringueira no sul da Bahia, avaliou-se a eficiencia desses produtos, isolados e em misturas, no controle de plantas daninhas em seringal em formacao.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Capim-papua; Carquejo; Borreria capitata; Tiririca-fina; Scleria pterota; Malmequer; Wedelia paludosa; Caminho-de-roca; Vermonia scorpioides; Brasil; Bahia; Rubber tree; Species; Herbicides evaluation.; Controle Químico; Espécie; Erva Daninha; Hevea; Herbicida; Paspalum Conjugatum; Seringueira.; Chemical control; Weeds.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667335

Avaliação da estratégia de tratamento parcial do rebanho no controle da mosca-dos-chifres.
Provedor de dados: 14
Autores: BARROS, A. T. M. de; RAVAGLIA, E.; PETZOLD, H. V.; AVELLAR, W. de.
A mosca-dos-chifres (MDC) destaca-se dentre os principais ectoparasitos que acometem a pecuária de corte nacional. Seu controle é realizado quase exclusivamente com produtos inseticidas, o que tem levado a sérios problemas de resíduos e resistência. Alternativas não químicas e redução do uso de inseticidas tornam-se essenciais ao controle sustentável deste parasito. O presente estudo avaliou a eficiência do tratamento parcial do rebanho como estratégia de controle da MDC. Quatro experimentos foram conduzidos, utilizando produtos de diferentes classes inseticidas: lactona macrocíclica (ivermectina), fenilpirazol (fipronil), piretróide cipermetrina) e organofosforado+piretróide (clorpirifós+cipermetrina), em formulações pour-on. Em cada experimento, 200...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Controle; Control.; Haematobia Irritans.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/994068

AVALIAÇÃO DA GESTÃO AMBIENTAL DA CARCINICULTURA MARINHA NO ESTADO DO CEARÁ: ESTUDO DE CASO
Provedor de dados: 31
Autores: Araujo,   Rogerio Cesar Pereira; Campos,   Roberio Telmo; Feitosa,   Rommel Darlan.
Este estudo trata da avaliação da gestão ambiental da carcinicultura marinha, particularmente do estudo de caso da fase de engorda em uma fazenda de grande porte (área superior a 50 ha), no município de Aracati, Estado do Ceará. Especificamente, foram investigadas as práticas ambientais adotadas pela fazenda, os fatores determinantes da adoção das práticas, o grau de conformidade com o Código de Conduta da Associação Brasileira de Criadores de Camarão (ABCC) e com os componentes da norma NBR ISO 14001. As práticas ambientais foram identificadas através da aplicação de um questionário com 358 questões e do instrumento de auditoria ambiental para os seguintes elementos da administração da fazenda: controle gerencial, gestão dos efluentes e gestão dos...
Tipo: Conference Paper or Presentation
Palavras-chave: Carcinicultura; Gestão ambiental; Melhores práticas; NBR ISO 14.001; Shrimp farm; Environmental management; Best practices; Livestock Production/Industries; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/108842

Avaliação da qualidade de inoculates à base de Bacillus para promoção de crescimento de plantas produzidos em sistema on farm.
Provedor de dados: 14
Autores: LANA, U. G. de P.; OLIVEIRA-PAIVA, C. A.; VILELA, A. E.; GOMES, E. A.; PIRES, V. L. M.; SOUSA, S. M. de; VALICENTE, F. H.
RESUMO - Nos últimos anos, o mercado e a demanda por insumos biológicos têm crescido exponencialmente no Brasil, seguindo uma tendência mundial. Com isso, diversos produtores rurais têm fabricado em suas fazendas insumos microbiológicos para aplicação direta nas lavouras, prática conhecida como produção on farm. Enquanto os produtos comerciais precisam seguir processos rígidos para produção, registro e comercialização, na produção on farm ainda não existe nenhuma obrigatoriedade quanto ao controle de qualidade e fiscalização. O objetivo deste trabalho foi avaliar a qualidade microbiológica de amostras de inoculantes à base de Bacillus, destinados à promoção de crescimento de plantas, produzidos em sistema on farm. As amostras foram caracterizadas quanto a...
Tipo: Folhetos
Palavras-chave: Bioproduto; Produção na fazenda; Inoculante; Bactéria; Microbiologia do Solo; Insumo; Contaminação; Risco.
Ano: 2022
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1143636

Avaliação da regeneração natural após exploração florestal na Floresta Estadual do Antimary, Acre.
Provedor de dados: 14
Autores: CARVALHO, A. L. de; OLIVEIRA, M. V. N. d'; OLIVEIRA, L. C. de.
Para entender melhor como a floresta responde ao manejo florestal avaliaram-se os efeitos da exploração florestal na regeneração natural de espécies arbóreas considerando diferentes ambientes produzidos pelas operações de exploração florestal, por meio de parcelas estabelecidas em unidades de produção anual (UPAs) com 1, 4 e 8 anos de exploração florestal na Floresta Estadual do Antimary, estado do Acre, Brasil. O estudo foi conduzido nos pátios, estradas secundárias, trilhas de arraste e clareiras produzidas pelo corte das árvores. Áreas não afetadas diretamente pela exploração florestal foram utilizadas como controle. Neste estudo foram considerados regeneração natural todos os indivíduos arbóreos entre 50 cm de altura e 10 cm de diâmetro à altura do...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Unidade de conservação; Manejo florestal sustentável; Áreas de conservación; Explotación forestal; Regeneración natural; Silvicultura sustentable; Floresta Estadual do Antimary (AC); Bujari (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Exploração Florestal; Regeneração Natural; Logging; Natural regeneration; Conservation areas; Sustainable forestry.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124623

Avaliação da segurança da introdução de Pseudomonas putida no ambiente: testes ecotoxicológicos da Fase 1 e perspectivas de implementação de novos estudos.
Provedor de dados: 14
Autores: JONSSON, C. M.; CASTRO, V. L. S. S. de; SILVA, C. M. M.; MAIA, A. de H. N.
Resumo: Os procedimentos de avaliação de risco necessários para a liberação de agentes microbianos em campo são executados de acordo com protocolos em fases sequenciais nas quais estão incluídos os estudos em organismos não-alvo. A bactéria Pseudomonas putida - linhagem AF7- (P. putida AF7) tem demonstrado potencial de aplicação no meio ambiente, tanto como biorremediador, como no controle de pragas. No presente estudo foram avaliados alguns efeitos desta bactéria em roedores (ratos Wistar) e organismos aquáticos (Daphnia similis) que constam da Fase inicial dos protocolos. Também foi avaliada a atividade enzimática microbiana em três tipos de solo após a sua inoculação com o agente biológico. Os ratos não demonstraram sintomas de patogenicidade, apesar do...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Teste ecotoxicológico; Ratos Wistar.; Bactéria; Pseudomonas putida; Controle biológico; Toxidez; Roedor; Biological control; Toxicity testing; Toxicity; Daphnia.
Ano: 2011
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/907631

Avaliação da toxicidade de inseticidas utilizados em roseira para adultos de Orius insidiosus (Say) (Hemiptera: Anthocoridae) - DOI: 10.4025/actasciagron.v29i3.276
Provedor de dados: 1
Autores: Torres, Fabrícia Zimermann Vilela; UFLA; Carvalho, Geraldo Andrade; UFLA; Souza, Jander Rodrigues de; UFLA; Rocha, Luiz Carlos Dias; UFLA.
Percevejos do gênero Orius têm sido usados como agentes entomófagos em diversos sistemas agrícolas, obtendo-se sucesso no controle de diferentes pragas. Em roseira esses percevejos podem ser utilizados no controle de tripes, a principal praga desse cultivo. Objetivou-se avaliar o impacto de inseticidas utilizados em roseira sobre adultos de Orius insidiosus (Say), por meio da pulverização direta sobre os percevejos e por ingestão de ‘alimento tratado. Utilizaram-se formulações comerciais dos produtos (g i.a. 100 mL-1): endosulfam (0,021), formetanato (0,04), espinosade (0,0144) e deltametrina (0,0008), sendo que somente endosulfam foi avaliado em teste de ingestão de alimento tratado. Utilizou-se água destilada no tratamento controle. Os bioensaios foram...
Palavras-chave: 5.01.02.00-1    Fitossanidade percevejo predador; Pesticidas; Seletividade.
Ano: 2007
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/276

Avaliação da toxicidade do cobre para o piauçu (Leporinus macrocephalus, Garavello &amp; Britski, 1988) por meio de parâmetros leucocitários e enzimáticos - DOI: 10.4025/actascibiolsci.v32i1.4939
Provedor de dados: 3
Autores: Nunes, Priscila Martinazzi Quirgo; UVV; Foizer, Edgar Rosa; UVV; Gomes, Levy de Carvalho; UVV; Chippari-Gomes, Adriana Regina; UVV.
Como forma de monitoramento de áreas degradadas, testes de toxicidade têm sido amplamente utilizados. Este trabalho teve como objetivo avaliar a toxicidade do cobre para o piauçu a partir da determinação da CL50 96h e da análise de alterações nos padrões enzimáticos e leucocitários, em exposição subletal (25 e 50% da concentração letal) por 96h. A CL50 96h do cobre para o piauçu foi 0,09 ± 0,03 mg L-1. Após a exposição às concentrações subletal, os valores das concentrações enzimáticas de Alanina Aminotrasferase e Aspartato Aminotransferase não apresentaram diferença significativa entre os indivíduos do grupo-controle e dos expostos ao metal. A glicose plasmática apresentou aumento significativo nos peixes expostos a 25 e 50% da CL50, quando comparados ao...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.00.00.00-6    Ciências Biológicas cobre; Exposição subletal; Leporinus macrocephalus; Ecotoxicologia aquática; Biomarcadores enzimáticos Toxicologia copper; Sublethal exposition; Leporinus macrocephalus; Aquatic ecotoxicology; Enzymatic biomarkers.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4939

Avaliação da utilização de Nim (Azadirachta indica) para o controle parasitário em bovinos de produção leiteira em sistema orgânico.
Provedor de dados: 21
Autores: Silva, Claudia Bezerra da; Brito, Guilherme Rodrigues; Sanavria, Argemiro; Soares, João Paulo Guimarães.
As infestações parasitárias são responsáveis por sérios prejuízos econômicos na pecuária leiteira por causarem danos para a saúde animal. O controle de ectoparasitos com produtos químicos convencionais tem sido realizado de forma indiscriminada, ocasionando o desenvolvimento acelerado de resistência aos princípios ativos, contaminação do ambiente e dos produtos de origem animal, provocando preocupação na sociedade e órgãos governamentais. Desta forma, o uso de métodos alternativos, como o de plantas de potencial fitoterápico (ação repelente e larvicida) surge como um tratamento simples e de baixo custo, resultando no resgate da medicina popular, principalmente para atender o sistema orgânico de produção leiteira. Tais substâncias naturais são consideradas...
Tipo: Journal paper
Palavras-chave: Dairy cattle; Farming Systems; Animal husbandry.
Ano: 2009
URL: http://orgprints.org/24945/1/Silva%2C%20C.B.%2C%20Brito%2C%20G.R._Avalia%C3%A7%C3%A3o%20da%20utiliza%C3%A7%C3%A3o%20de%20Nim.pdf

Avaliação de atividade de Educação Ambiental em trilha interpretativa, dois a três anos após sua realização - DOI: 10.4025/actascibiolsci.174
Provedor de dados: 3
Autores: Curado, Priscilla Menezes; UEG; Angelini, Ronaldo; UEG.
Objetivou-se neste trabalho conduzir uma avaliação de crianças que, nos anos de 2002 e 2003, foram submetidas a uma prática de Educação Ambiental (EA) na Trilha Interpretativa da UEG. Essas crianças (grupo teste) foram contatadas em suas escolas e juntamente com outras crianças, que nunca participaram da atividade (grupo controle), percorreram a trilha e responderam a um questionário. Os resultados dos questionários do grupo teste, em comparação com o desempenho da atividade anterior, evidenciaram ganhos cognitivos nesse intervalo de um ou dois anos da primeira exposição à atividade. Todavia, quando comparado com o grupo controle, essa diferença não foi estatisticamente significativa (p
Palavras-chave: 2.05.00.00-9    Ecologia educação ambiental; Trilha interpretativa; Cerrado; Avaliação.
Ano: 2007
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/174

Avaliação de dano e controle da cigarrinha-das-pastagens em plantas de milho com diferentes idades.
Provedor de dados: 14
Autores: SANTOS, J. P.; CRUZ, I.; BOTELHO, W.
bitstream/item/48322/1/Pesq.And.-2.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Pragas; Controle; Maize; Pest; Control; Damage.; Cigarrinha das Pastagens; Dano; Milho; Zea Mays.
Ano: 1982
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/476288

Avaliação de diferentes posições de marcação externa em juvenis de tilápia Oreochromis niloticus (Cichlidae) - DOI: 10.4025/actascianimsci.v25i2.2001
Provedor de dados: 2
Autores: Faria, Regina Helena Sant'Ana de; UEM; Souza, Maria Luiza Rodrigues de; UEM; Ribeiro, Ricardo Pereira; UEM; Fülbe, Vanice Marli; UNIOESTE.
Foram avaliados, neste trabalho, o efeito e a eficácia de uma técnica de marcação externa em tilápia, Oreochromis niloticus L. (Cichlidae). Com o auxílio de uma agulha nº 9, um fio sintético flexível (0,20mm) contendo 3 miçangas coloridas, foi fixado à musculatura dos peixes em 3 posições: na musculatura de inserção da nadadeira dorsal (D) e na musculatura de inserção da nadadeira caudal nas posições dorsal (C) e ventral (V). Um total de 120 animais, com peso de 11,5g e 8,2cm de comprimento total, foram marcados e distribuídos em 2 tanques-rede na densidade de 30 peixes/m3. Em cada tanque-rede foram estocados 60 indivíduos, classificados em 4 grupos, sendo 3 com marcações do tipo D, C e V e um controle sem marcação (SM), com 15 peixes por tratamento. Após...
Palavras-chave: 5.04.00.00-2 Zootecnia marcação externa; Tilápia; Oreochromis niloticus; Identificação de peixes 5.04.00.00-2 Zootecnia.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/2001

Avaliação de extratos vegetais no controle de mosca-branca, Bemisia abaci biótipo B em abóbora.
Provedor de dados: 21
Autores: LIMA, Bruno Marcus Freire Vieira; MOREIRA, José Osmã Teles; ARAGÃO, Carlos Alberto.
A abóbora (Cucurbita moschata Duch.) é uma cultura de importância para a agricultura familiar da região  Nordeste do Brasil. No entanto, a ocorrência do prateamento das folhas da aboboreira ocasionado pela mosca-branca, Bemisia  tabaci biótipo B limita sua produção, causando prejuízos aos agricultores. O objetivo deste trabalho foi avaliar a eficiência  de extratos vegetais sobre o nível populacional de ninfas de mosca-branca em abóbora cv. Jacarezinho. O experimento foi instalado em campo experimental, em blocos casualizados, constituído de seis tratamentos e três repetições. As aplicações dos  extratos vegetais foram feitas com intervalo de sete dias, fazendo-se uso de substâncias extraídas das seguintes plantas: canudo (Ipomoea carnea subsp. fistulosa),...
Tipo: Journal paper
Palavras-chave: Production systems; Farming Systems; Feeding and growth.
Ano: 2013
URL: http://orgprints.org/29800/1/Lima_avalia%C3%A7%C3%A3o.pdf

Avaliacao de fungicidas no controle ao cancro estriado do painel de sangria da seringueira.
Provedor de dados: 14
Autores: PEREIRA, J. C. R.; SANTOS, A. F. dos.
Com o objetivo de selecionar produtos efetivos contra o cancro estriado, foram conduzidos dois ensaios; no primeiro, procurou-se avaliar o efeito preventivo e no segundo, o efeito curativo. Foram testados os seguintes produtos: Mancozeb, Clorotalonile metalaxil-Mancozeb, Metalaxil e Captafol utilizado como padrao. Dentre os seis fungicidas testados, os produtos a base de Metalaxil, Ridomil e Ridomil-Mancozeb apresentaram bom desempenho no controle de Phytophthora spp., evidenciando os efeitos preventivo e curativo desses produtos. Com base nesses resultados, o Metalaxil-Mancozeb pode ser indicado como alternativa para o controle do cancro estriado.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Painel; Brasil; Bahia; Rubber tree; Species; Panel; Fungal diseases; Fungicides evaluation.; Cancro Estriado; Controle Químico; Doença; Espécie; Fungicida; Fungo; Hevea; Phytophthora; Seringueira.; Chemical control.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665382

Avaliação de Fungicidas para o Controle de Antracnose em Folhas de Pupunheira (Bactris gasipaes)
Provedor de dados: 190
Autores: Tessmann, Dauri José; Santos, Álvaro Figueredo dos; Vida, João Batista; Mafacioli, Rudimar.
A antracnose, causada pelo fungo Colletotrichum gloeosporioides, é uma doença foliar importante da pupunheira (Bactris gasipaes) nas fases de muda e planta jovem. O objetivo do trabalho foi avaliar a eficiência de fungicidas químicos no controle de antracnose em folhas de pupunheiras jovens, no Noroeste do Paraná. O ensaio foi conduzido com o delineamento experimental  em blocos ao acaso, com cinco tratamentos com fungicidas e uma testemunha  sem fungicida, com quatro repetições. Foram utilizados os fungicidas chlorotalonil (2 g L-1), chlorotalonil+tiofanato metílico (1 + 0,4 g L-1), tebuconazole (0,2 g L-1), azoxistrobina (80 mg L-1) e calda Viçosa (3 g L-1 de ácido bórico; 5 g L-  de sulfato de cobre; 6 g L-1 de sulfato de zinco; 3,5 g L-1 de cal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colletotrichum gloeosporiodes; Arecaceae Colletotrichum gloeosporiodes; Arecaceae.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/232

Avaliação de fungicidas para o controle de ergot ou doença acucarada (Claviceps africana) em sorgo.
Provedor de dados: 14
Autores: FERREIRA, A. da S.; PINTO, N. F. J. de A.; CASELA, C. R.
bitstream/item/30780/1/Pesq.And.-14.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Doenca acucarada; Controle; Claviceps africana; Disease; Control; Fungicide.; Fungicida; Sorgo.; Sorghum Bicolor; Ergot.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/478853

Avaliação de gramíneas forrageiras para o controle de Meloidogyne incognita e M. javanica (Nematoda) - DOI: 10.4025/actasciagron.v25i2.2163
Provedor de dados: 1
Autores: Dias-Arieira, Cláudia Regina; UEM; Ferraz, Silamar; UFV; Freitas, Leandro Grassi de; UFV; Mizobutsi, Edson Hiydu; UFV.
O objetivo deste trabalho foi avaliar o efeito de 15 espécies de gramíneas sobre a população de Meloidogyne incognita e M. javanica (Nematoda), em casa de vegetação. Mudas das gramíneas foram transplantadas para vasos e inoculadas com 2.500 ovos de M. incognita ou M. javanica. Soja cv. FT-Cristalina e milho cv. BR-106 foram usados como testemunhas. As plantas foram cultivadas durante 60 dias, após a parte aérea foi cortada e o solo revolvido. Cada vaso recebeu uma muda de tomateiro como planta indicadora. Após 40 dias de cultivo, o sistema radicular foi avaliado quanto ao número de galhas (1.o ensaio) ou massas de ovos (2.o ensaio). As cultivares de Panicum maximum e as espécies Brachiaria brizantha, B. brizantha cv. MG-4 e B. decumbens foram as mais...
Palavras-chave: 5.00.00.00-4    Ciências Agrárias controle; Rotação de cultura; Nematóides; Gramíneas forrageiras 5.00.00.00-4    Ciências Agrárias.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2163

Avaliacao de herbicidas aplicados em pre e pos emergencia sobre plantas daninhas ocorrentes na cultura da seringueira (Hevea spp.).
Provedor de dados: 14
Autores: LIMA, A. de A.; PEREIRA, R. C.
Em virtude do grande numero de herbicidas e misturas atualmente existentes no mercado, objetivou-se selecionar, preliminarmente, em condicoes de casa de vegetacao, herbicidas aplicados em pre e pos-emergencia em quatro especies de plantas daninhas predominantes na cultura da seringueira.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Capim-acu-da-bahia; Digitaria insularis; Capim-papua; Capim-pe-de-galinha; Carrapicho-de-agulha; Brasil; Bahia; Rubber tree; Species; Treatment date; Herbicides evaluation.; Bidens Pilosa; Controle Químico; Emergência; Erva Daninha; Espécie; Herbicida; Hevea; Paspalum Conjugatum; Seringueira.; Eleusine indica; Chemical control; Weeds.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665279

Avaliação de impactos socioambientais do uso de boas práticas na produção de ovinos e caprinos.
Provedor de dados: 14
Autores: HOLANDA FILHO, Z. F.; OLIVEIRA, E. L. de; MARTINS, E. C.; MONTEIRO, A. W. U.; MAGALHAES, K. A.; LIMA, L. D. de; ALBUQUERQUE, F. H. M. A. R. de.
Resumo - Este trabalho apresenta avaliações de impactos socioambientais da adoção de boas práticas zootécnicas e de gestão na produção de ovinos e caprinos no município de Tauá – CE, entre janeiro/2017 e dezembro/2018. Utilizou-se o sistema Ambitec-Agro, composto por matrizes de ponderação multicritério com 148 indicadores, relativos a 27 critérios de desempenho, agrupados em sete aspectos: Eficiência Tecnológica, Qualidade Ambiental, Respeito ao Consumidor, Emprego, Renda, Saúde e Gestão da Propriedade. As boas práticas objeto da avaliação fundamentam-se nas seguintes tecnologias: (i) Controle integrado de verminose, (ii) controle de linfadenite caseosa, (iii) orçamentação forrageira, (iv) estação de monta e (v) práticas de gestão da propriedade. Os...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Boas práticas; Brasil; Região Nordeste; Taúa; Ceará; Impact assessment; Caprinocultura; Ovinocultura; Impacto Ambiental; Goats; Sheep; Good agricultural practices; Brazil; Semiarid zones.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117062

Avaliação de inseticidas no controle de Sitophilus oryzae (Linnaeus) (Coleoptera, Curculionidae) e Rhyzopertha dominica (Fabricius) (Coleoptera, Bostrichidae) em trigo armazenado
Provedor de dados: 104
Autores: Furiatti,Rui S.; Pereira,Paulo R.V.S.; Pinto Jr.,Airton R.; Lazzari,Flávio A.
The efficiency of insecticides against Sitophilus oryzae (Linnaeus, 1763) (Coleoptera, Curculionidae) and Rhyzopertha dominica (Fabricius, 1792) (Coleoptera, Bostrichidae) was determined exposing them to treated wheat in laboratory. Each plot, which was composed by 1.2 kg of wheat grain, was treated with 5 ml of the concentration/kg of wheat using a propelling air atomizer. Fifteen days after treatment 50 g samples of the grain were taken, from each plot, placed in plastic jars into which 10 adult insects of each species were released. This was repeated every 30 days until 165 days after treatment. The number of dead insects was counted 15 days after each infestation thus the evaluations were made at 30, 60, 90, 120, 150 and 180 days after the insecticide...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Chemical control; Stored-product pests.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000100018

Avaliação de iscas atrativas para captura de adultos de Eupalamides dedalus (Castnia) em plantação comercial de coqueiros.
Provedor de dados: 14
Autores: MULLER, A. A.; SILVA, A. de B.; SOUZA, L. A. de; LINS, P. M. P.; OHASHI, O. S.
bitstream/item/52956/1/PesquisaAnd120001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Controle de praga; Eupalamides dedalus; Moju; Pará; Brasil; Altractants.; Armadilha; Coco; Inseto; Isca.; Amazonia; Insecta; Coconuts; Pest control; Traps.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374635

Avaliação de iscas e armadilhas para captura de Rhynchophorus palmarum em dendezais.
Provedor de dados: 14
Autores: SILVA, A. de B.; MULLER, A. A.; SOUZA, L. A. de; OHASHI, O. S.; PAULO, R. B.
bitstream/item/57488/1/CPATU-BP200.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Controle de praga; Phynchophorus palmarum; Brasil; Oil palms.; Armadilha; Dendê; Elaeis Guineensis; Feromônio; Inseto; Isca.; Amazonia; Insecta; Pheromone traps.; Pest control.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375534

Avaliação de linhagens de feijoeiro comum nos anos de 2003 e 2004, nas condições de Cerrado do Distrito Federal.
Provedor de dados: 14
Autores: CARVALHO, W. P. de.
RESUMO: No biênio 2003/2004, foram conduzidos no Distrito Federal pela Embrapa Cerrados os ensaios VCU como parte da rede nacional de melhoramento de feijão, cuja avaliação de linhagens de feijoeiro comum visa à recomendação para o plantio na região dos Cerrados. O objetivo desse VCU é indicar cultivares de feijão de alto potencial produtivo e resistência às principais pragas e doenças, melhor arquitetura para colheita mecânica e com boas qualidades culinárias. As linhagens foram agrupadas de acordo com a cor dos grãos (carioca, preto e grupo diversos que compõe os tipos roxo, vermelho e rosinha). As linhagens do grupo carioca foram CNFC 9435, CNFC 9458, CNFC 9461, CNFC 9471, CNFC 9484, CNFC 9494, CNFC 9500, CNFC 9504, CNFC 9506, CNFC 9518 e CNFE 8009,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Variedade Resistente.; Beans; Plant breeding; Varieties.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571494

Avaliação de linhagens de feijoeiro comum nos anos de 2005 e 2006, nas condições de Cerrado do Distrito Federal.
Provedor de dados: 14
Autores: CARVALHO, W. P. de.
RESUMO: No biênio 2005/2006, foram conduzidos no Distrito Federal pela Embrapa Cerrados, os ensaios VCU como parte da rede nacional de melhoramento de feijão cuja avaliação de linhagens de feijoeiro comum visa à recomendação para o plantio na região dos Cerrados e tem por objetivo indicar cultivares de feijão de alto potencial produtivo e resistentes às principais pragas e doenças, melhor arquitetura para colheita mecânica e com boas qualidades culinárias. As linhagens foram agrupadas de acordo com a cor dos grãos (carioca, preto e grupo diversos que compõe os tipos roxo, vermelho e rosinha). As linhagens do grupo carioca foram CNFC 10408, CNFC 10410, CNFC 10429, CNFC 10431, CNFC 10432, CNFC 10444, CNFC 10455, CNFC 10467 e CNFC 10470, tendo como...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris.; Beans; Plant breeding.
Ano: 2007
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571965

Avaliação de materiais genéticos de dendezeiro (Elaeis guineensis Jacq.) no Estado do Pará - uma alternativa de solução para o amarelecimento fatal.
Provedor de dados: 14
Autores: MÜLLER, A. A.; ALVES, R. M.
bitstream/item/57770/1/CPATU-PA174.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Controle de doença; Amarelecimento fatal; Avaliação de linhagem; Rynchophorus palmarum; Elaeis guinensis; Brasil.; Dendê; Melhoramento Genético Vegetal.; Amazonia; Disease control; Plant breeding; Progeny.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375218

Avaliacao de metodos de aplicacao de fungicidas para controle da sigatoka negra da bananeira.
Provedor de dados: 14
Autores: PEREIRA, J. C. R.; GASPAROTTO, L.; PEREIRA, M. C. N.; COSTA, M. M. da.
Avaliacao de tecnicas alternativas de aplicacao de fungicidas visando o controle da sigatoka negra em bananeiras no Estado do Amazonas (Brasil).
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Species; Fungal diseases; Fungicides applications.; Banana; Controle Químico; Doença; Espécie; Folha; Fungicida; Método de Aplicação; Mycosphaerella Fijiensis; Sigatoka Negra.; Musa; Chemical control; Leaves.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669828

Avaliação de parâmetros físicos e químicos e pesquisa de Vibrio parahaemolyticus em águas do estuário do rio Anil (São Luís, Estado do Maranhão) - DOI: 10.4025/actascibiolsci.v25i2.1978
Provedor de dados: 3
Autores: Serra, Carmen Lucia Martins; UFMA; Cavalcante, Paulo Roberto Saraiva; UFMA; Alves, Lucia Maria Coelho; UFMA; Nascimento, Adenilde Ribeiro; UFMA; Diniz, Silvia Cristina Costa de Santana de; UFMA.
Avaliação dos parâmetros físico-químicos e isolamento de Vibrio parahaemolyticus em águas do estuário do rio Anil (São Luís-MA, Brasil), em bancos naturais de moluscos. Foi utilizada a técnica do Número Mais Provável (NMP) com enriquecimento e subseqüente isolamento em agar tiossulfato-citrato-sacarose-sais-biliares (TCBS). Adicionalmente, foram monitorados “in situ” alguns parâmetros físico-químicos. As determinações para o pH variaram (7,25 a 7,90), O2 (0,20 a 1,2mg/L), T°C (29 a 32°C), S‰ (5 a 28,0 UPS), NH4+ (0,04 a 3,41mg/L), NO2- (0,10 a 1,91mg/L), PO43- (0,03 a 4,88mg/L). Em 56,1% na estação I e 55,4% na estação II, apresentaram positividade, para V. parahaemolyticus, com níveis entre 1,1x10 e &gt; 1,1x105NMP/mL. Os resultados exigem uma atenção...
Palavras-chave: 2.01.00.00-0    Biologia Geral parâmetros físicos e químicos; Vibrio parahaemolyticus; Estuário; Nutrientes; Análises de água 2.01.00.00-0    Biologia Geral.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1978

Avaliação de produtos para o controle da mosca branca (Bemisia spp.) na cultura do tomate (Lycopersicon esculentum Mill.).
Provedor de dados: 14
Autores: HAJI, F. N. P.; ALENCAR, J. A. de; LIMA, M. F.; MATTOS, M. A. de A.; HONDA, O. T.; HAJI, A. T.
Com o objetivo de avaliar a eficiência de produtos para o controle de mosca branca na cultura do tomate.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Controle; Bemisia spp; White flies; Control; Products.; Controle biológico; Lycopersicon Esculentum; Mosca Branca; Produto; Tomate.; Biological control; Aleyrodidae; Tomatoes.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132236

Avaliação de progênies de macaúba na fase juvenil e estimativas de parâmetros genéticos e diversidade genética
Provedor de dados: 190
Autores: Manfio, Candida Elisa; Motoike, Sérgio Yoshimitsu; Resende, Marcos Deon Vilela de; Santos, Carlos Eduardo Magalhães dos; Sato, Aurora Yoshiko.
A macaúba (Acrocomia aculeata) é uma palmeira oleaginosa e o extrativismo de seus frutos é de grande importância socioeconômica para os pequenos produtores rurais. O objetivo deste trabalho foi avaliar a variabilidade genética e obter informações sobre o controle genético de características morfológicas relacionadas ao crescimento e vigor da macaúba. Foram coletadas 51 progênies em Minas Gerais e São Paulo, as quais são integrantes do banco ativo de germoplasma da Universidade Federal de Viçosa. Doze meses após o plantio, essas progênies foram avaliadas quanto ao crescimento da planta (cm) e número de folhas emitidas. Estas características apresentaram grande variabilidade entre as progênies. As estimativas dos coeficientes de herdabilidade foram de 87% e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acrocomia aculeata; Variabilidade genética; Recursos genéticos; Herdabilidade Acroconia aculeata; Genetic variability; Genetic resources; Heritability.
Ano: 2012
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/283

Avaliação de programa: aspectos teóricos e metodológicos no contexto da agricultura familiar.
Provedor de dados: 14
Autores: ROCHA, F. E. de C.; ALBUQUERQUE, F. J. B. de; MARCELINO, M. Q. dos S.
ABSTRACT: This study to present information from literature about evaluation of social programs, which were used later on to evaluate the Pronaf (a credit line for small farmers implemented by the Brazilian Federal Government) in Paraiba state. Several approaches about the evolution logic models were identified, in which data and information are gathered through tables or input lists, activities, products, results, in which was verified the recommendation of quasi-experimentation design, with control group, to isolate results of the specific program. Moreover, concepts related to hard indexes and perception data were also presented to facilitate visualization of how determined variable criterion occurs in the real world, i. e., how e perception data can be...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Produtor rural; Psicologia social; Family farmers.; Agricultura Familiar; Pequeno Produtor; Transferência de Tecnologia.; Farmers; Psychology; Small farms; Technology transfer.
Ano: 2008
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/571909

Avaliação de sementes de caupi quanto ao ataque do caruncho em diferentes condições de armazenamento.
Provedor de dados: 14
Autores: FAZOLIN, M.; MESQUITA, J. E. de L.
O caupi, Vigna unguiculata, (L.) Walp. é cultivado na região Norte do Brasil como cultura de subsistência, sendo que os pequenos excedentes de produção são destinados à comercialização, evidenciando desta forma, a importância socioeconômica desta cultura. Vários são os fatores que contribuem para a queda de produção da cultura do caupi. No armazenamento são encontrados insetos que conprometem significativamente a qualidade e a quantidade dos grãos e sementes produzidos. O objetivo do ensaio foi o de encontrar, dentro das limitações do pequeno produtor rural acreano, condições eficientes de armazenamento de sementes de caupi, observando a adoção de recipientes e controle químico do gorgulho.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Weevils; Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Caupi; Plagas de plantas.; Cultivo a pequeña escala; Control químico; Explotación agrícola familiar; Agricultura familiar; Pequeno produtor; Feijão de corda; Vigna unguiculata; Praga de planta; Gorgulho; Controle químico; Campo Experimental.; Family farms; Small-scale farming; Cowpeas; Plant pests; Callosobruchus analis; Chemical control.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492183

Avaliacao de substâncias de origem vegetal no controle de pragas de grãos armazenados.
Provedor de dados: 14
Autores: SANTOS, J. P.; PRATES, H. T.; WAQUIL, J. M.; OLIVEIRA, A. B.
bitstream/item/30664/1/Pesq.And.-19.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Graos; Grain; Pest.; Armazenamento; Controle Químico; Ecologia; Praga.; Chemical control; Ecology; Storage.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/478858

Avaliação de uma metodologia profilática contra a mastite clínica em ovelhas da raça Santa Inês
Provedor de dados: 45
Autores: Melo,C.B.; Almeida,B.M.; Oliveira,A.A.; Azevedo,H.C.; Melo,L.S.S.; Mata,S.S.
Mastitis is an important problem for the Santa Inês ewes and is a disease strongly related to the management carried out in the herd. A comparative study was carried out between the proposed method based on drying (treatment) and the traditional method (control). Sixty-two Santa Inês ewes raised in a semi-extensive system were divided in two groups of 31 ewes each: treatment group (G1) and control group (G2). The animals were monitored each week searching for clinical sings of mastitis. In 8.4% of G1 and 41.3% of G2 animals, the udder was warm and hyperemic. The presence of residual milk was lower in G1 (24.3%) compared to those of G2 (74.2%). The proposed treatment for the control of ovine mastitis significantly reduced the frequency of the clinical signs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ovino; Santa Inês; Lactação; Secagem; Mastite.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000400033

Avaliação de volumes de calda proporcionados por diferentes pontas de pulverização no controle de Tuta absoluta (Meirick, 1917) (Lepidoptera: Gelechiidae) em tomate rasteiro - DOI: 10.4025/actasciagron.v30i5.5961
Provedor de dados: 1
Autores: Iost, Cristina; UNESP; Ferreira, Marcelo da Costa; UNESP; Martinelli, Nilza Maria; Maccagnan, Douglas Henrique Bottura; UNESP.
O objetivo deste trabalho foi avaliar o controle da traça-do-tomateiro em função dos volumes de aplicação. O levantamento da infestação da praga foi realizado avaliando-se o número de lagartas e de lesões com e sem lagarta viva e o número de ovos em folhas e frutos. Os tratamentos realizados foram o inseticida chlorfluazuron na dosagem de 80 mL p.c. 100 L-1, aplicado com as pontas: TJ6011002, TJ6011004, TX04VK e TX12VK cada uma utilizando, respectivamente, o volume de calda de: 200, 600, 200 e 600 L há-1; e o pulverizador costal motorizado (100 L há-1); todos com e sem o adjuvante polioxietileno alquil fenol éter (1 mL 10 L-1 de água) e mais uma testemunha. Verificou-se que os tratamentos com e sem adjuvantes não diferiram entre si. Porém, houve diferença...
Palavras-chave: 5.01.02.00-1 Fitossanidade chlorfluazuron; Amostragem; Tecnologia de aplicação chlorfluazuron; Evaluation; Spray technology.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5961

Avaliacao do beneficio-custo do controle estrategico de parasitos em bovinos domesticos. 1.Dados preliminares de ganho de peso.
Provedor de dados: 14
Autores: BIANCHIN, I.; FEIJO, G. L. D.; VAZ, E. C.; GOMES, A.; KICHEL, A. N.
bitstream/item/137706/1/PESQ-EM-ANDAMENTO-52.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Mestico; Controle estrategico; Brasil Central; Control; Costs; Central Brazil.; Bovino; Custo; Parasito.; Crossbreds; Cattle; Parasites.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/322256

Avaliação do controle biológico natural do pulgão, Aphis gossypii Glover (Homoptera.: Aphididae) e da curuquerê, Alabama argillacea Hübner (Lepidoptera: Noctuidae) na cultura do algodoeiro no Distrito Federal.
Provedor de dados: 14
Autores: SUJII, E. R.; BESERRA, V. A.; RIBEIRO, P. H.; SILVA-SANTOS, P. V. da; SILVA, K. F. A. de S.; MACEDO, T. R.; PIRES, C. S. S.; SCHMIDT, F. G. V.; FONTES, E. M. G.; LAUMANN, R. A.
bitstream/CENARGEN/26681/1/bp113.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Aphis gossypii Glover; Homoptera:Aphididae; Alabama argillacea Hübner; Lepidoptera: Noctuidae; Algodoeiro; Distrito Federal; Cotton plant.; Controle Biológico; Curuquerê; Inseto; Pulgão.; Insecta; Biological control.
Ano: 2005
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/187095

Avaliação do desempenho de novilhas nelore implantadas com dispositivo intra-uterino (DIU) recebendo ou não mistura mineral
Provedor de dados: 2
Autores: Alcalde, Claudete Regina; UEM; Prado, Ivanor Nunes do; UEM; Godoi, Yone Aparecida de; UEM; Zeoula, Lúcia Maria; UEM; Nascimento, Willian Gonçalves do; UEM; Pereira, Marli Aparecida dos Santos; UEM.
Trinta e duas novilhas nelore (208,3kg) foram distribuídas em 16 baias (duas/baia), em um delineamento experimental inteiramente casualizado, sendo analisado em parcela sub-subdividida. Os tratamentos com sal comum ou mistura mineral constituíram as parcelas, o implante ou não do DIU as subparcelas e os períodos as sub-subparcelas. A ração concentrada participou em média 40% do total da matéria seca fornecida. Os tratamentos estudados não afetaram (P &gt; 0,05) o ganho de peso e o rendimento de carcaça. Independentemente de tratamento, houve um ganho compensatório (P &lt; 0,05) no primeiro período experimental em comparação aos três períodos subsequentes. O implante do DIU não alterou o desempenho dos animais (P &gt; 0,05) comparado ao dos animais sem DIU.
Palavras-chave: 5.04.00.00-2    Zootecnia controle do cio; Ganho de peso; Suplementação mineral; Confinamento 5.04.00.00-2    Zootecnia.
Ano: 1999
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4301

Avaliação do efeito materno na herança da tolerância ao alumínio em milho
Provedor de dados: 3
Autores: Prioli, Alberto José; UEM; Schneider, Tânia Aparecida Amaducci; NUPELIA-UEM; Hoshino, Andrea Akemi; NUPELIA-UEM; Bravo, Juliana Pereira; UEM; Boni, Talge Aiex; NUPELIA-UEM; Prioli, Sonia Maria Alves Pinto; NUPELIA-UEM; Munhoz, Roxelle Ethienne Ferreira; UEM.
Os cerrados ocupam quase um quarto do território brasileiro e têm solos ácidos com alta saturação de alumínio, que reduz a produtividade de plantas não adaptadas, pois limita o crescimento das raízes. O uso de genótipos tolerantes ao alumínio, em combinação com calagem, é uma estratégia promissora para a exploração agrícola dos cerrados. O conhecimento dos mecanismos de herança da tolerância ao alumínio contribuirá para a obtenção de genótipos tolerantes e produtivos. O objetivo deste trabalho foi determinar se há efeito materno na resposta ao alumínio em cruzamentos recíprocos de linhagens endogâmicas de milho. Foram utilizados seis pares de cruzamentos recíprocos entre duas linhagens tolerantes e três sensíveis. Os cruzamentos recíprocos mostraram taxas...
Palavras-chave: 2.00.00.00-6 Ciências Biológicas tolerância ao alumínio; Milho; Efeito materno 2.00.00.00-6 Ciências Biológicas.
Ano: 2000
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2816

Avaliação do efeito residual de alguns fungicidas no controle de doenças dos orgãos aéreos do trigo.
Provedor de dados: 14
Autores: GOULART, A. C. P.
bitstream/item/65480/1/BP5.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Plant diseases.; Controle Químico; Cerrado; Efeito Residual; Doença de Planta; Fungicida; Trigo; Triticum Aestivum.; Chemical control; Fungicides; Residual effects; Wheat.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/241392

Avaliação do malathion po no controle de pragas do milho armazenado em espigas com palha.
Provedor de dados: 14
Autores: SANTOS, J. P.; CRUZ, I.; FONTES, R. A.; FERRARI, R. A.
bitstream/item/30877/1/ct-2.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Pragas; Maize; Pest.; Armazenamento; Controle Químico; Milho; Zea Mays.; Chemical control; Storage.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/486585

Avaliação do número de alvéolos de pulmões remanescentes de ratos após lobectomia ou bilobectomia
Provedor de dados: 3
Autores: Seidel, Amélia Cristina; UEM; Bahls, Alvacir Santos; UEM; Meister, Hugo; UEM; Moreschi Junior, Dorival; UEM; Bagatin, Juliana Paula; UEM; Nakayama, Lilian Yumi; UEM.
Realizou-se este estudo com objetivo de analisar a resposta adaptativa da ressecção pulmonar, tendo-se como parâmetro a histologia do parênquima pulmonar remanescente. Foram utilizados quarenta e cinco Rattus novergicus albinus, Wistar, fêmeas, adultos. Distribuídos em grupo I, animais submetidos a lobectomia média direita, e redistribuídos em dois subgrupos para avaliação do pós-operatório aos 30 e 60 dias. No grupo II, os animais foram submetidos a bilobectomia cranial e média direita e também foram redistribuídos em subgrupos para posterior avaliação. Os animais que constituíram o grupo controle não sofreram intervenção cirúrgica. Os resultados mostraram que após a ressecção, ocorreu hiperplasia do parênquima pulmonar remanescente, além de dilatação dos...
Palavras-chave: 2.00.00.00-6 Ciências Biológicas lobectomia; Ratos; Alvéolos 2.00.00.00-6 Ciências Biológicas.
Ano: 2000
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2983

Avaliação do potencial antimutagênico do Cogumelo do Sol (Agaricus blazei) no sistema methG1 em Aspergillus (=Emericella) nidulans - DOI: 10.4025/actasciagron.v25i2.2129
Provedor de dados: 1
Autores: Rodrigues, Suzymeire Baroni; UEM; Jabor, Izabel Aparecida Soares; UEM; Marques-Silva, Giuliani Grazyella; UEM; Rocha, Carmem Lucia M. Sartori Cardoso da; UEM.
Muitos cogumelos comestíveis são utilizados com objetivos terapêuticos. Produtores brasileiros já têm investido em cultivo de cogumelos visando ao mercado de fitoterápicos, principalmente pelas suas propriedades anticancerígenas. A capacidade imunomoduladora relacionada aos efeitos antitumorais já tem sido relatada em vários trabalhos, colocando em evidência um grande número de espécies. Entre essas, Agaricus blazei, conhecido como Cogumelo do Sol, tem despertado grande interesse, sendo comercializado no Brasil, para tratamento anticâncer. Esse cogumelo já demonstrou propriedades antitumorais e, mais recentemente, uma publicação apresentou indicação de antimutagenicidade. O objetivo do presente trabalho foi avaliar o potencial antimutagênico do A. blazei...
Palavras-chave: 5.00.00.00-4    Ciências Agrárias antimutagenicidade; Agaricus blazei; Aspergillus nidulans; Sistema metionina 5.00.00.00-4    Ciências Agrárias.
Ano: 2003
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2129

AVALIAÇÃO DOS BENEFÍCIOS SOCIOECONÔMICOS DO SANEAMENTO AMBIENTAL NO MUNICÍPIO DE CUIABÁ NO PERÍODO DE 2000 A 2005
Provedor de dados: 31
Autores: Mendes,   Carlos Magno; Silva,   Cristiane Marcela Oliveira.
Fatores relacionados às condições de vida da população e às questões ambientais precárias são freqüentemente citados como os maiores responsáveis pela incidência de doenças e, às vezes, por traduzirem obstáculos ao controle de surtos de epidemias. O objetivo deste estudo é avaliar os benefícios diretos e indiretos decorrentes do impacto da falta de planejamento urbano e de sua conseqüente infra-estrutura sanitária e ambiental deficitária no município de Cuiabá, no período de 2000 a 2005. Diante do saneamento ambiental falho, prejudicial à saúde humana, a análise enfoca as doenças de maior notificação e incidência, tais como diarréia, dengue e hanseníase.  O Método dos Custos Evitáveis (MCE), que relaciona a poluição ambiental e sua conseqüente afetação à...
Tipo: Conference Paper or Presentation
Palavras-chave: Saneamento ambiental; Saúde pública; Morbidade e mortalidade; Custos evitáveis; Environmental sanitation; Public health; Morbidity and mortality; Avoidable costs; Community/Rural/Urban Development; I 11; I 18.
Ano: 2008
URL: http://purl.umn.edu/109787

Avaliação dos problemas enfrentados no manejo do caramujo gigante africano Achatina fulica (Gastropoda: Pulmonata) no Brasil
Provedor de dados: 103
Autores: Colley,Eduardo; Fischer,Marta Luciane.
The giant African snail Achatina fulica Bowdich, 1822 was introduced into Paraná, Brazil, in the 1980s. Since then, it has spread across the country, despite its known invasive status on a global scale. The main objective of this study was to assess the problems faced in the management of the giant African snail. To accomplish that, we gathered and analyzed information available on the internet, scientific databases, field studies, as well as interviews and consultations with official agencies, NGOs, museums, the scientific community and people that coexist with the species. Despite the fact that extensive information has been generated regarding A. fulica (1,340 articles, 65 summaries in national annals, 40,700 pages on the internet), essential to promote...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological invasions; Control; Economic; Environmental; Impacts; Invasive exotic species; Health.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000400012

Avaliação econômica e financeira do uso da cobertura plástica na produção orgânica de uvas americanas e híbridas.
Provedor de dados: 14
Autores: LAZZAROTTO, J. J.; FIORAVANÇO, J. C.
O objetivo deste comunicado técnico foi o de estimar e avaliar impactos econômicos e financeiros do uso da cobertura plástica em sistemas de produção orgânica de uvas americanas e híbridas, com vistas a determinar a viabilidade de sua utilização quando a matéria-prima é vendida para industrialização.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Videira; Cobertura plástica; Uva americana; Uva híbrida; Cultivo; Impacto econômico-financeiro.; Viticultura; Uva; Agricultura orgânica; Controle integrado; Doença de planta; Economia agrícola.; Viticulture; Grapes; Organic production; Agricultural economics; Disease control.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1000880

Avaliação in vitro de extratos vegetais para o controle de fungos patogênicos de flores.
Provedor de dados: 21
Autores: Camatti-Sartori, Valdirene; Magrini, Flaviane Eva; Crippa, Liziane Bertoti; Venturin, Leandro; Silva-Ribeiro, Rute Terezinha; Marchett, Cassiano.
O sistema convencional do cultivo de flores vem causando diversos problemas, como intoxicações, contaminação dos solos, das águas e alimentos. O objetivo deste trabalho foi avaliar o efeito de extratos vegetais sobre o desenvolvimento de fitopatógenos em flores. Os fitopatógenos Fusarium sp. e Botrytis sp. foram isolados de flores de Gerbera sp. e Rosa sp. com sintomas de doença. Foram avaliados os extratos acéticos e etanólicos de alecrim, cavalinha, gengibre, alho, camomila, louro, manjericão, menta e eucalipto. Observou-se que o extrato etanólico de camomila inibiu em 52% o crescimento micelial de Fusarium sp. O fungo Botrytis sp. foi inibido com os extratos acéticos de alecrim, eucalipto e menta. O potencial antifúngico, parcial ou total, dos extratos...
Tipo: Journal paper
Palavras-chave: Farming Systems Vegetables Ornamentals; Flower bulbs and tree nurseries.
Ano: 2011
URL: http://orgprints.org/23077/1/Camatti-Sartori_Avalia%C3%A7%C3%A3o.pdf

Avaliação in vivo e características da carcaça de cordeiros Santa Inês alimentados com resíduo de cervejaria
Provedor de dados: 22
Autores: Cavilhão, Cristiani; Costa, Patrícia Barcellos; Vilela, Christiane Garcia; Júnior, Nivaldo Karvatte; Hermes, Paula Regina; Taffarel, Loreno Egidio.
This study aimed to evaluate the use of dried brewer in feeding feedlot lambs and theireffects on in vivo measurements and carcass characteristics. We used 16 lambs Santa Ines, with20 kg of live weight at the beginning of the experiment in a completely randomized distributedamong diets: control, 20%, 40% and 60% inclusion of brewer replacing the bran concentrated insoy. On the 94th day of confinement, the animals were fasted for 16 h of solid feed, and then themeasurements were taken, weight, body shape and condition. After slaughter, we evaluated theweights and measures of income and housing. The measurements performed in vivo and carcasscharacteristics were not affected by different levels of inclusion of the residue, except theinternal length of casing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carne; Ovinocultura; Subproduto.
Ano: 2014
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/9441

Avaliação nutricional da raspa integral de mandioca extrusada ou não para coelhos em crescimento - DOI: 10.4025/actascianimsci.v27i1.1258
Provedor de dados: 2
Autores: Furlan, Antonio Claudio; UEM -Maringá; Scapinello, Claudio; UEM; Moreira, Ivan; UEM; Murakami, Alice Eiko; UEM; Santolin, Mauricio Luiz da Rosa; UEM; Otutumi, Luciana Kazue; UEM.
Dois experimentos foram conduzidos com o objetivo de determinar o valor nutritivo da raspa de mandioca extrusada ou não e verificar o desempenho de coelhos em crescimento submetidos a rações contendo níveis crescentes desses alimentos. No ensaio de digestibilidade, foram utilizados 21 coelhos da raça Nova Zelândia Branco, 15 machos e 6 fêmeas, com idade média de 55 dias, distribuídos em um delineamento inteiramente casualizado com três tratamentos e sete repetições. Os teores de matéria seca digestível, matéria orgânica digestível, amido digestível e energia digestível, com base na matéria seca, foram, respectivamente, 74,8%, 86,5%, 80,1% e 3.512 kcal/kg, para a raspa de mandioca, e 79,3%, 91,0%, 80,1% e 3641 kcal/kg, para a raspa de mandioca extrusada. No...
Palavras-chave: 5.04.03.00-1 Nutrição e Alimentação Animal alimentação; Carcaça; Digestibilidade; Processamento; Valor energético 5.04.03.00-1 Nutrição e Alimentação Animal.
Ano: 2005
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1258

Avaliação nutricional de dietas contendo farelo de coco fornecido a coelhos destinados ao abate - DOI: 10.4025/actascianimsci.v31i4.6103
Provedor de dados: 2
Autores: Haponik, Cecília Aurea Vasconcelos de; UFC; Espíndola, Gastão Barreto; UFC; Freitas, Ednardo Rodrigues; UFC; Raquel, Débora Linhares; UFC; Ramos, Lorena de Oliveira; UFC; Chaves, Cleidiane de Souza; UFC.
Este trabalho avaliou a utilização do farelo de coco (FC) na alimentação de coelhos destinados ao abate. No ensaio de desempenho utilizaram-se 60 coelhos com  43 dias de idade, distribuídos em delineamento inteiramente casualizado (DIC) com cinco tratamentos, sendo 12 repetições por tratamento e duração de 42 dias, com inclusão de FC nos níveis de 0; 6,25; 12,5; 18,75 e 25%. Para o ensaio de digestibilidade das dietas usou-se o DIC com cinco tratamentos e três repetições, tendo a duração de cinco dias. Observou-se, entre os tratamentos estudados, excluindo-se o nível zero, que não houve efeito significativo (p &gt; 0,05), sobre as características de ganho de peso e ganho de peso diário. Houve efeito quadrático (p &lt; 0,05), entre as dietas estudadas,...
Tipo: Pesquisa de campo; análise laboratorial
Palavras-chave: Composição nutricional; Oryctolagus cuniculus; Alimento alternativo; Nutrição nutritional composition; Oryctolagus cuniculus; Alternative food; Nutrition.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6103

Avaliação nutricional do feno das folhas da amoreira (Morus alba L.) em frangos de corte - doi: 10.4025/actascianimsci.v33i4.10679
Provedor de dados: 2
Autores: Dorigan, Claudia Josefina; Centro Universitário Barão de Mauá; Resende, Kleber Tomaz de; FCAV/UNESP - Campus de Jaboticabal/SP; Alessi, Antonio Carlos; FCAV/UNESP - Campus de Jaboticabal/SP; Malheiros, Euclides Braga; FCAV/UNESP - Campus de Jaboticabal; Sakomura, Nilva Kazue; FCAV/UNESP - Campus de Jaboticabal/SP.
O experimento foi conduzido com o objetivo de avaliar nutricionalmente o feno das folhas de amoreira, utilizando-se de frangos de corte. Foram utilizados cinco tratamentos (Testemunha (sem amoreira, 3,16% FB), 15% de amoreira (4,14% FB), 30% de amoreira (5,09% FB), Sem amoreira (4,14% FB) e Sem amoreira (5,09% FB)) usando-se o delineamento em blocos casualizados, com dois blocos e três repetições dentro de cada bloco e avaliados os índices de desempenho, o exame histopatológico dos órgãos viscerais e medidas morfométricas do núcleo dos hepatócitos e ácinos pancreáticos. Foi verificado o pior desempenho produtivo para as aves que ingeriram feno de folhas de amoreira, além de lesões tais como esteatose, proliferação de células de ductos hepáticos e necrose...
Tipo: Pesquisa de campo; análise laboratorial
Palavras-chave: 5.04.00.00-2; 5.04.03.00-1; 5.05.03.00-6 desempenho; Frangos de corte; Análise histopatológica performance; Broiler chicken; Histopatological analysis.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10679

Avaliação nutricional do triticale extrusado ou não para coelhos em crescimento - DOI: 10.4025/actascianimsci.v26i1.1931
Provedor de dados: 2
Autores: Furlan, Antonio Claudio; UEM -Maringá; Monteiro, Renilda Terezinha; UEM; Scapinello, Claudio; UEM; Moreira, Ivan; UEM; Murakami, Alice Eiko; UEM; Martins, Elias Nunes; UEM.
Dois experimentos foram conduzidos com o objetivo de determinar o valor nutritivo do triticale extrusado ou não e verificar o desempenho de coelhos em crescimento, submetidos a rações contendo níveis crescentes deste alimento. No ensaio de digestibilidade, foram utilizados 21 coelhos da raça Nova Zelândia Branco, 15 machos e seis fêmeas, com idade média de 55 dias, distribuídos em um delineamento inteiramente casualizado com três tratamentos e sete repetições, sendo uma ração referência e duas rações testes. Na elaboração das rações testes, os alimentos avaliados (triticale extrusado ou não) substituíram a ração referência em porcentuais de 30%. Os coeficientes de digestibilidade da matéria seca, da matéria orgânica, da proteína bruta, do amido e da...
Palavras-chave: 5.04.00.00-2 Zootecnia alimentação; Carcaça; Digestibilidade; Processamento; Valor energético 5.04.00.00-2 Zootecnia.
Ano: 2004
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1931

Avaliação preliminar sobre a ação de fungicidas aplicados em ovos de Erinnyis ello (L.) (Lepidoptera: Sphingidae) em laboratório.
Provedor de dados: 14
Autores: FREIRE, A. J. P.; PEREIRA, J. C. R.; SANTOS, A. F. dos.
Foi realizado, em laboratorio, um teste preliminar para avaliar a acao ovicida de dois fungicidas comumente utilizados no controle de doencas na regiao: Triforine e Benomil (este, veiculado no adjuvante Tween 80 como um tratamento adicional). Tres dias apos a oviposicao e aos tratamentos, iniciaram as eclosoes. Quatro dias apos as primeiras eclosoes, a mortalidade das lagartas foi de 100%, embora alimentadas desde o nascimento com foliolos jovens de seringueira. Em todos os tratamentos, no minimo, 50% dos ovos apresentaram embrioes de lagartas secos em seu interior.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil; Bahia; Rubber tree.; Controle Químico; Erinnyis Ello; Espécie; Hevea; Pesticida; Seringueira.; Chemical control; Pesticides.
Ano: 1985
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665187

Avaliação qualitativa de pulverizadores da região de Cascavel, Estado do Paraná - DOI: 10.4025/actasciagron.v28i4.901
Provedor de dados: 1
Autores: Silveira, João Cleber Modernel da; UFV; Gabriel Filho, Antonio; UNIOESTE; Pereira, Joaquim Odilon; UNIOESTE; Silva, Suedêmio de Lima; UNIOESTE; Modolo, Alcir José; UTFPR.
No processo de tratamento fitossanitário, o controle das características da pulverização deve ser realizado com o objetivo de garantir a eficiência dos tratamentos, evitando-se perdas de produtos sem causar danos ao meio e ao próprio homem. Dessa forma, é fundamental que os pulverizadores estejam em perfeito estado de conservação. O objetivo deste trabalho foi realizar na região de Cascavel, Estado do Paraná, uma avaliação qualitativa de pulverizadores agrícolas. Foram checados, no campo, o estado e presença dos principais componentes de 62 pulverizadores. Os pulverizadores avaliados foram divididos em três categorias: montado, arrasto e autopropelido. Observou-se que os equipamentos avaliados estão com manutenção inadequada. Considerando a presença e o...
Palavras-chave: 5.03.00.00-8    Engenharia Agrícola pulverização; Potencial de risco de deriva; Manutenção 5.03.00.00-8    Engenharia Agrícola.
Ano: 2006
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/901

Avaliation of the soil preparation quality in minimum cultivation area planted with eucalypt
Provedor de dados: 190
Autores: Gava, José Luiz.
Evaluations, of the quality of soil preparation in the plantation lines, were made in areas with potential risk of compaction using the penetrometer to collect data about the depth and width of the furrow. The samplings were made in three sites of production of Eucalyptus in areas of Cia Suzano de Papel e Celulose in the state of São Paulo, managed under minimum cultivation of the soil and where crop was mechanized and intensive. The statistical evaluation of the quality was made through the measurement and assessment of the results of the soil preparation, comparing the results with the technical quality standards pre-established by the company. The data were analyzed graphically and statistically. In the graphic analysis of the three sites sampled, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Quality control; Compaction; Soil preparation; Sub soiling Controle de qualidade; Compactação; Preparo de solo; Subsolagem.
Ano: 2003
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1608

Avancées récentes sur la reproduction des huîtres
Provedor de dados: 5
Autores: Gerard, Andre.
Historically, the research on mollusc reproduction conducted by the Ifremer aimed at improving mass production in order to support new activities (Japanese clam for example) or to compensate for insufficient natural reproductions (abalone, king scallop). Nowadays, priority has been given to the preservation of natural resources and the optimisation of shellfish culture in order to support activities that are strongly represented by a profession, especially oyster culture. The studies that have been carried out in the field of oyster genetics for about ten years highlighted the limits of our knowledge on reproduction control as well as the high sensitivity of mollusc farms to the multiple assaults of their outside environment. As far as professional...
Tipo: Text
Palavras-chave: Crassostrea gigas; Reproducteur; Sélection génétique; Huître; Reproduction.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/publication-6535.pdf

Avances en la investigación de la relación patogeno-hospedante y de la resistencia genética a enfermedades de la caña de azúcar en Argentina
Provedor de dados: 46
Autores: Mariotti,J. A.; Machado Assefh,C. R.; Redi,G.; Fontana,P. D.; Collavino,N. G.; Pocovi,M. I.; Rago,A. M.; Daz,M. E.
Esta contribución presenta avances en la investigación de la variabilidad y resistencia genética con relación a "Roya marrón" y "Estría roja" de la caña de azúcar en Argentina. Resultados experimentales de la inoculación con roya en condiciones controladas permitieron postular que tanto la actividad peroxidasa basal como la tasa de su crecimiento con posterioridad a la infección serían mecanismos complementarios que favorecen la expresión de la resistencia a la enfermedad. También se investigó la diversidad molecular en poblaciones de roya con base en 538 marcadores AFLP a partir de muestreos en diferentes variedades y en una amplia faja de distribución de la enfermedad en el NOA. No se detectaron estructuras genéticas diferenciadas según orígenes,...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Resistencia genética; Diversidad genética; Marcadores moleculares; Caña de azúcar.
Ano: 2011
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332011000100014

Averrhoa carambola L., Syzygium cumini (L.) Skeels e Cissus sicyoides L.: efeitos dos chás de plantas medicinais sobre os sistemas-teste vegetal e animal
Provedor de dados: 3
Autores: Vicentini, Veronica Elisa Pimenta; UEM; Camparoto, Marjori Leiva; UEM; Teixeira, Rosangela de Oliveira; UEM; Mantovani, Mario Sergio; UEL.
As plantas medicinais têm sido muito estudadas devido aos seus efeitos curativos. Neste estudo foram utilizados o sistema teste vegetal em células meristemáticas de Allium cepa L. e o sistema teste animal em células da medula óssea de ratos Wistar tratados in vivo para avaliação dos efeitos citotóxicos e mutagênicos das plantas Averrhoa carambola L., Syzygium cumini (L.) Skeels e Cissus sicyoides L., analisando-se o ciclo de divisão celular, morfologia e cromossomos. Os chás das plantas foram preparados da maneira usada pela população e em duas diferentes concentrações, a usual e outra dez vezes maior. Os chás foram aplicados em doses únicas nos ratos. A avaliação demonstrou que os chás não alteram o ciclo celular de Allium cepa L., exceto na análise 24...
Palavras-chave: 2.00.00.00-6 Ciências Biológicas plantas medicinais; Aberração cromossômica; Teste de mutagenicidade 2.00.00.00-6 Ciências Biológicas.
Ano: 2001
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2716

Avian infectious bronchitis virus in Brazil: a highly complex virus meets a highly susceptible host population
Provedor de dados: 89
Autores: Brandão,PE.
Infectious bronchitis (IB) is a highly aggressive disease for poultry in terms of symptoms and economic losses, and the control of this disease is difficult if flocks are not protected against type-specific challenges by the Avian infectious bronchitis virus (IBV). This article summarizes data presented by the author at the Workshop on Infectious Bronchitis 2009 on IB and IBV, including future developments on the field.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: IBV; Genealogy; Pathogeny; Epidemiology.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000200008

Avian influenza control strategies in the United States of America
Provedor de dados: 26
Autores: Swayne, D.E.; Akey, B.L.
Prevention, control and eradication are three different goals or outcomes for dealing with avian influenza (AI) outbreaks in commercial poultry of the USA. These goals are achieved through various strategies developed using components of biosecurity (prevention or reduction in exposure), surveillance and diagnostics, elimination of infected poultry, decreasing host susceptibility to the virus (vaccination or host genetics) and education. However, the success of any developed strategy has depended on industry-government trust, co-operation and interaction. The preferred outcome for HPAI has been stamping out, for which the federal government has regulatory authority to declare an emergency and do immediate eradication of HPAI, and pay indemnities. For H5and...
Tipo: Conference proceedings
Ano: 2005
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1029

Avian influenza: Eco-epidemiological aspects of the virus in its natural hosts, the migratory waterfowls
Provedor de dados: 97
Autores: MONTALVO-CORRAL,MARICELA; REYES-LEYVA,JULIO; HERNÁNDEZ,JESÚS.
Avian influenza viruses produce mainly respiratory and intestinal diseases. Their relevance in the generation of pandemic strains has led to a large amount of research to understand their distribution in nature, as well as the relations that become established for the effective transmission among different hosts. Waterfowl have been recognized as their natural reservoir and they play an important role in the propagation and generation of the diversity of these viruses. The emergence of new influenza viruses with pandemic potential among the human population (H5N1 of avian origin or recombinant H1N1 with avian segments) point our lack of information on many aspects of the ecology and epidemiology of these viruses in their natural hosts to enable the...
Tipo: Journal article
Palavras-chave: Avian influenza; Ecology; Epidemiology; Migratory birds.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2010000400008

Avian influenza viruses and influenza in humans
Provedor de dados: 26
Autores: Alexander, D.J.; Capua, I.; Brown, I.H.
Influenza-A viruses cause natural infections of humans, some other mammals and birds. Few of the 15 haemagglutinin and 9 neuraminidase subtype combinations have been isolated from mammals, but all subtypes have been isolated from birds. There are enormous pools of influenza-A viruses in wild birds, especially migratory waterfowl. In the 20th century there were 4 pandemics of influenza due to the emergence of antigenically different strains in humans: 1918 (H1N1), 1957 (H2N2), 1968 (H3N2) and 1977 (H1N1). The RNA of influenza-A viruses is segmented into 8 distinct genes and as a result genetic reassortment can occur in mixed infections with different viruses. The 1957 and 1968 pandemic viruses differed from the preceding viruses in humans by the...
Tipo: Conference proceedings
Ano: 2005
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1017

Avian influenza viruses in Hong Kong: zoonotic considerations
Provedor de dados: 26
Autores: Shortridge, K.F.
Since the mid-1970s, Hong Kong has functioned as an influenza sentinel post for southern China, a region identified as a hypothetical epicentre for the emergence of pandemic influenza viruses. Nineteen ninety-seven marked the coming-of-age of animal-influenza studies with the recognition in Hong Kong of an incipient pandemic situation brought about by the infection of chicken and humans with an avian influenza H5N1 (H5N1/97) virus. Slaughter of all poultry across the Hong Kong SAR possibly averted a pandemic. Tracking down the source of the H5N1/97 virus to geese and quail and precursor avian H5N1, H9N2 and H6N1 viruses revealed that it was a triple reassortant. This provided a framework for influenza-pandemic preparedness at the baseline avian level,...
Tipo: Conference proceedings
Ano: 2005
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1018

Avian mycoplasmosis update
Provedor de dados: 89
Autores: Nascimento,ER; Pereira,VLA; Nascimento,MGF; Barreto,ML.
Avian mycoplasmas occur in a variety of bird species. The most important mycoplasmas for chickens and turkeys are Mycoplasma gallisepticum (MG), M. synoviae (MS), and M. meleagridis. Besides, M. iowe (MI) is an emerging pathogen in turkeys, but of little concern for chickens. Mycoplasmas are bacteria that lack cell wall and belong to the class Mollicutes. Although they have been considered extracellular agents, scientists admit nowadays that some of them are obligatory intracellular microorganisms, whereas all other mycoplasmas are considered facultative intracellular organisms. Their pathogenic mechanism for disease include adherence to host target cells, mediation of apoptosis, innocent bystander damage to host cell due to intimate membrane contact,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Airsacculitis; Diagnosis; Mycoplasma; Mollicutes; Poultry.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000100001

Avian reovirus infection: an overview
Provedor de dados: 195
Autores: Assunção, Tatiana Reichert da Silva; Palka, Ana Paula Gori; Pavoni, Daniela Parada.
Poultry production is an activity of great importance in Brazilian economy, both due to the domestic consumption and the large amount of chicken meat exportation. Poultry activity modernization allowed the creation of animals in high density facilities, however, it facilitates the rapid dissemination of pathogens, which reduces the productivity rates. This review aims to highlight the avian reovirus, an important agent of arthritis in birds that has a worldwide distribution. The affected birds present a reduction in weight gain due to movement difficulties. In addition to arthritis, the virus may be related to a variety of pathological conditions, such as enteric and respiratory disorders, Hepatitis and myocarditis. The main prevention and control measure...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avian reovirus; Viral arthritis; Poultry avian reovirus; Viral arthritis; Poultry.
Ano: 2018
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37781

Avian reovirus infection: an overview
Provedor de dados: 195
Autores: Assunção, Tatiana Reichert da Silva; Palka, Ana Paula Gori; Pavoni, Daniela Parada.
Poultry production is an activity of great importance in Brazilian economy, both due to the domestic consumption and the large amount of chicken meat exportation. Poultry activity modernization allowed the creation of animals in high density facilities, however, it facilitates the rapid dissemination of pathogens, which reduces the productivity rates. This review aims to highlight the avian reovirus, an important agent of arthritis in birds that has a worldwide distribution. The affected birds present a reduction in weight gain due to movement difficulties. In addition to arthritis, the virus may be related to a variety of pathological conditions, such as enteric and respiratory disorders, Hepatitis and myocarditis. The main prevention and control measure...
Tipo: Info:eu-repo/semantics/article
Ano: 2018
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37781

Avispas exóticas en la Patagonia: la importancia de la ecología de invasiones en el manejo de plagas
Provedor de dados: 67
Autores: Villacide,José M.; Masciocchi,Maité; Corley,Juan C.
El manejo integrado de plagas (MIP) se basa en el conocimiento de la ecología de las especies problema. Se ha sugerido que cuando las plagas son especies invasoras, la comprensión del proceso de invasión puede mejorar aun más nuestra capacidad de control de las plagas. Nuestro objetivo es revisar algunos atributos claves de la ecología y el comportamiento en el proceso de invasión de la avispa de los pinos Sirex noctilio y de la avispa chaqueta amarilla Vespula germanica, y discutir sus implicancias sobre las acciones de manejo implementadas en el N.O. de la Patagonia Argentina. Investigaciones previas identificaron los factores determinantes del éxito de invasión, como la demografía, los atributos de la comunidad receptora y el papel de los disturbios,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sirex noctilio; Vespula germanica; Avispas invasoras; Hymenoptera; Manejo integrado de plagas.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2014000200004

AZ ELLENŐRZÉSI TEVÉKENYSÉG KIALAKÍTÁSI FOLYAMATÁNAK MODELLEZÉSE KÜLÖNÖS TEKINTETTEL A GAZDÁLKODÁSI TEVÉKENYSÉGEKET ÉRINTŐ K+F ÉS INNOVÁCIÓK ELSZÁMOLÁSÁRA
Provedor de dados: 31
Autores: Zeman,   Zoltan; Toth,   Mark; Barczi,   Judit.
Knowledge and its creation, utilisation and diffusion, company growth and business development are all centres to the question of innovation from a theoretical perspective to create unity within a company, and to create a better measure and control system for innovation. Within the control system for innovational activities, the effects of the innovative activities on services and products have to be calculated both qualitatively (yes/no) and quantitatively (total/expenses). Control questions on the expenses of innovation are hard to answer, because many of the companies do not include numerous of their activities in their accounting file. Therefore many of the surveys on innovation were limited to certain expenses; expenses related to other companies...
Tipo: Book
Palavras-chave: Innovációs kiadások; Ellenőrzési pontok; Vezetői számvitel; Innovation costs; Controlling points; Managerial accountancy; Agribusiness; Agricultural Finance; Farm Management.
Ano: 2008
URL: http://purl.umn.edu/43334

AZ INTEGRÁLT IGAZGATÁSI ÉS ELLENŐRZÉSI RENDSZER HATÉKONYSÁGA AZ EU-BAN
Provedor de dados: 31
Autores: Vasary,   Viktoria.
Az Európai Unió Közös Agrárpolitikára fordított kiadásainak szabálytalanul és jogtalanul kifizetett (4000 euró feletti) tételeit a tagállamok kötelesek jelenteni az EU Bizottságának. Az EU Számvevőszéke által legutóbb elkészített külön je-lentés alapján az 1971 és 2002 között megállapított szabálytalan kifizetések visz-szafizetési folyamata az összeg 75%-át érintő mértékben még mindig „függőben” van. A kérdés jelenleg az, hogy az 1992. évi reformot követő, a támogatási szer-kezetben dominánssá vált közvetlen támogatások kifizetései mennyire járulnak hozzá ehhez a helyzethez.  A különböző támogatási formák részletes vizsgálata során megállapításra ke-rült, hogy az Integrált Igazgatási és Ellenőrzési Rendszer ernyője alá tartozó tá-mogatásokkal kapcsolatban...
Tipo: Journal Article
Palavras-chave: Támogatás monitoring; IIER; Hibás kérelmek aránya - monitoring of EU subsidies; IACS; Rate of false application; Agricultural and Food Policy; Agricultural Finance.
Ano: 2005
URL: http://purl.umn.edu/54302

Azadirachtin on  Oligonychus yothersi in yerba mate  Ilex paraguariensis
Provedor de dados: 65
Autores: Alves,Luis Francisco Angeli; Martins,Claudecir Castilho; Mamprim,Ana Paula; Botton,Marcos.
ABSTRACT: The red mite Oligonychus yothersi is one of the main pests of yerba mate in Brazil The damage this mite causes leads to leaf drop and decreased production. There are no registered acaricides for use in yerba mate; thus, laboratory and field experiments were performed to evaluate the effect of azadirachtin (Azamax(r), 250mL 100L-1) for the control of the red mite in yerba mate. In the laboratory, azadirachtin was applied to yerba mate leaf disks before (residual contact) and after (direct contact) infestation with 15 newly emerged red mite adult females. The effect of azadirachtin on mite behavior was evaluated in arenas with treated and untreated yerba mate leaves, and the number of mites in both areas was recorded. Ovicidal action was evaluated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neem; Alternative control; Yerba mate pest.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001777

Azolla pinnata as a possible replacement of palm kernel cake in the diet of oreochromis niloticus.
Provedor de dados: 20
Autores: Abioye, O.M.; Adeyemo, A.A.; Ayinla, O.A.; Bekibele, D.O.
Azolla pinnata as a possible replacement of the palm kernel cake in the diet of Oreochromis niloticus. Compounded diets from a control with palm kernel cake replaced at varying levels of 0, 20, 40, 60, 80, and 100% with the aquatic fern (oven dried Azolla pinnata) were fed to Oreochromis niloticus for twelve weeks to determine the acceptability and utilization of the fern in the diet, verify the nutritional influence of the fern on the performance of the fish and possible optimum palm kernel cake replacement level. The fish readily accepted the test diets. Better growth responses were recorded in the treatments containing Azolla pinnata meal. The best response was observed in the 20% replacement level, thereby suggesting an optimum replacement. However...
Tipo: Report
Palavras-chave: Nutrition; Aquaculture development; Nutrition; Http://aims.fao.org/aos/agrovoc/c_49892.
Ano: 1993
URL: http://hdl.handle.net/1834/2410

Azospirillum brasilense AND COMPOUND OF PHYTOHORMONES AS BIOSTIMULANTS IN JALO PRECOCE BEANS
Provedor de dados: 196
Autores: Moreira, Allisson Sousa; Contardi, Lucymara Merquides; Camilo, Lucas Jandrey; Andrade, Maria Gabriela Oliveira; Lima, Sebastião Ferreira; Vendruscolo, Eduardo Pradi; Simon, Cátia Aparecida.
Beans are one of the most important crops in Brazil but still have a low yield. The use of technologies such as the application of biostimulants can provide greater yield for the crop. Thus, the work aimed to evaluate the effect of using Azospirillum brasilense and phytohormones on Jalo Precoce beans. The experiment was carried out in randomized blocks with nine treatments and four replications. The treatments consisted of a control, Stimulate (compound of phytohormones), and A. brasilense applied isolated or associated to the seeds or in a furrow. The plant height, stem diameter, shoot dry matter, number of pods per plant, number of grains per pod, the weight of grains per pod, and 100-grain weight were favored by A. brasilense and compound of...
Tipo: Info:eu-repo/semantics/article
Ano: 2021
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5974

Azospirillum brasilense INTERACTION EFFECTS WITH CAPTAN AND THIODICARB ON THE INITIAL GROWTH OF CORN PLANTS
Provedor de dados: 196
Autores: Vogel, Gabriel Felipe; Fey, Rubens.
The application of biological products containing diazotrophic bacteria in the seed has been highlighted as an alternative to reduce the use of nitrogen fertilizers; however, the chemical treatment of the seeds may negatively affect the survival rate of these microorganisms in the soil. The effects of the application of captan (fungicide) and thiodicarb (insecticide) in association with the inoculation of Azospirillum brasilense were investigated in this study for the corn crop. The research was conducted under greenhouse conditions at Universidade Estadual do Centro-Oeste (UNICENTRO), in Guarapuava, Paraná, Brazil, and under laboratory conditions at the Universidade Federal da Fronteira Sul (UFFS), in Laranjeiras do Sul, Paraná, Brazil. A completely...
Tipo: Info:eu-repo/semantics/article
Ano: 2019
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/3133

Azospirillum sp . inoculation in wheat, barley and oats seeds greenhouse experiments
Provedor de dados: 52
Autores: Dalla Santa,Osmar R.; Hernández,Ramona Fernández; Alvarez,Gergina L. Michelena; Ronzelli Junior,Pedro; Soccol,Carlos Ricardo.
The aim of the present work was to evaluate the inoculation effects of Azospirillum sp. RAM-7 strain, in seeds of wheat, barley and oats cultures on yield and total nitrogen content of the grains in greenhouse experiments. Seeds inoculation with Azospirillum sp. RAM-7 strain enhanced grain yields, even so, the responses vary among the evaluated cultures. For wheat, significant increases were obtained when the inoculation was associated to 100% of the recommended nitrogen, although the treatment that received only inoculation produced 7.4% above the control, however this difference wasn't significant. For barley, the presence of the inoculant substituted 20% the recommended nitrogen fertilization. For oats the inoculation with Azospirillum sp. RAM-7 didn't...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Azospirillum; Wheat; Barley; Oats; Nitrogen fixation; Plant growth promotion.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000600002

Babesia ovata: Taxonomy, phylogeny and epidemiology
Provedor de dados: 19
Autores: Sivakumar, Thillaiampalam; Igarashi, Ikuo; Yokoyama, Naoaki.
Babesia ovata, which is transmitted by Haemaphysalis longicornis, is an intraerythrocytic protozoan parasite of cattle. Based on its morphology, B. ovata is classified as a large-type Babesia. The developmental stages of B. ovata have been described both in cattle and the tick vector. In infected adult female ticks, the parasite is transovarially transmitted to the tick eggs. The sexual reproduction of B. ovata has been demonstrated in the tick midgut. The diagnostic tools that are currently available for the specific detection of B. ovata in cattle include microscopy and polymerase chain reaction assays. The development of improved molecular and serological diagnostic tools has been constrained by the limited availability of genetic data. B. ovata has...
Palavras-chave: Babesia ovata; Cattle; Epidemiology; Phylogeny; Taxonomy.
Ano: 2016
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4555

Bacillus cereus in Brazilian Ultra High Temperature milk
Provedor de dados: 63
Autores: Pacheco-Sanchez,Cristiana de Paula; Massaguer,Pilar Rodriguez de.
Brazilian Ultra High Temperature (UHT) milk consumption has increased during the last decade from 187 to 4,200 million liters. In the continuous UHT process, milk is submitted for 2-4 s to 130-150ºC, in a continuous flow system with immediate refrigeration and aseptical packing in hermetic packages. This research had the purpose to verify the incidence of B. cereus species from the B. cereus group, in UHT milk. In 1998 high indexes of these organisms were reported, reaching 34.14% of the analyzed samples. Beyond this fact, there was the need to establish methods and processes adjusted for correct identification of B. cereus. Thus, commercial sterility tests of 6,500 UHT milk packages were investigated in two assays, after ten days incubation at 37ºC and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: FTIR; PCR; Commercial sterility; Statistical analyses.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000200008

Bacillus Coagulans Enhance the Immune Function of the Intestinal Mucosa of Yellow Broilers
Provedor de dados: 89
Autores: Xu,L; Fan,Q; Zhuang,Y; Wang,Q; Gao,Y; Wang,C.
ABSTRACT This experiment was conducted to investigate the effects of Bacillus coagulans on the growth performance and immune functions of the intestinal mucosa of yellow broilers. Three hundred and sixty one-day-old yellow chicks were randomly allocated to four treatments groups with six replicates of 15 chicks each. The broilers were randomly subjected to one of the following treatments for 28 days: control group (group1, fed a basal diet) and three treatments (group 2, 3, 4) fed the basal diet supplemented with 100, 200, or 300 mg/kg Bacillus coagulans , respectively). The results showed that for 28 days, compared with the control diet, the dietary addition of 200 mg/kg Bacillus coagulans significantly decreased the feed/gain ratio (F/G) (p&lt;0.05),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus coagulans; Yellow broilers; Growth performance; Intestinal mucosa immune function.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000100115

Bacillus EFFECT ON THE GERMINATION AND GROWTH OF TOMATO SEEDLINGS (Solanum lycopersicum L)
Provedor de dados: 37
Autores: CABRA CENDALES,Teresa; RODRÍGUEZ GONZÁLEZ,Cristian Alonso; VILLOTA CUÁSQUER,Claudia Patricia; TAPASCO ALZATE,Omar Alberto; HERNÁNDEZ RODRÍGUEZ,Annia.
ABSTRACT The capacity to solubilize phosphate and to produce indole compounds Indole Acetic Acid type, was evaluated in 15 strains isolated from castor bean lignocellulosic residues (Ricinus communis). To determine the solubilizing activity of phosphates a qualitative test by using Pikovskaya culture medium was employed and for the evaluation of the production of indole compounds (IAA) a Salkowsky colorimetric analysis technique was applied. Among the microorganisms tested, the Bacillus pumilus GIBI 206 demonstrated capacity to solubilize phosphates and Bacillus subtilis GIBI 200 showed of capacity to solubilize phosphates and to produce Indoleacetic Acid (IAA). To determine the effect of the Bacillus subtilis strain on germination and growth promotion,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biotechnology; Indole; PGPB; Seedlings; Tomato.
Ano: 2017
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2017000100004

BACILLUS SUBTILIS FOR THE CONTROL OF POWDERY MILDEW ON CUCUMBER AND ZUCCHINI SQUASH
Provedor de dados: 53
Autores: BETTIOL,WAGNER; GARIBALDI,ANGELO; MIGHELI,QUIRICO.
Application of concentrated metabolites of Bacillus subtilis - CMBS - (5,000 µg/mL) one and 24 h before or after inoculation of Sphaerotheca fuliginea (3 x 104 conidia/mL) reduced the number of lesions on cucumber leaves by 90-99%. The average number of lesions on control plants was 16.7 per leaf. A wettable powder product formulated with cells (10%) and metabolites (10%) of B. subtilis (WPBS), and CMBS sprayed on cucumber plants (1,000 µg/mL and 10,000 µg/mL) twice a week totally controlled powdery mildew. In the control treatment, 18 days after the first spray, the percent leaf surface covered by lesions was 99.0 and 46.7%, on the cotyledonary and expanded leaves, respectively. In the control treatment, 30 days after the first spray, the percent leaf...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Cucurbit; Sphaerotheca fuliginea; Cucumis sativus; Cucurbita pepo.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051997000200007

Bacillus thuringiensis monogenic strains: screening and interactions with insecticides used against rice pests
Provedor de dados: 58
Autores: Pinto,Laura M.N.; Dörr,Natália C.; Ribeiro,Ana Paula A.; Salles,Silvia M. de; Oliveira,Jaime V. de; Menezes,Valmir G.; Fiuza,Lidia M.
The screening of Bacillus thuringiensis (Bt) Cry proteins with high potential to control insect pests has been the goal of numerous research groups. In this study, we evaluated six monogenic Bt strains (Bt dendrolimus HD-37, Bt kurstaki HD-1, Bt kurstaki HD-73, Bt thuringiensis 4412, Bt kurstaki NRD-12 and Bt entomocidus 60.5, which codify the cry1Aa, cry1Ab, cry1Ac, cry1Ba, cry1C, cry2A genes respectively) as potential insecticides for the most important insect pests of irrigated rice: Spodoptera frugiperda, Diatraea saccharalis, Oryzophagus oryzae, Oebalus poecilus and Tibraca limbativentris. We also analyzed their compatibility with chemical insecticides (thiamethoxam, labdacyhalothrin, malathion and fipronil), which are extensively used in rice crops....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus thuringiensis; Cry proteins; Insects.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200025

Bacillus thuringiensis survey in Brazil: geographical distribution and insecticidal activity against Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)
Provedor de dados: 82
Autores: Valicente,Fernando H.; Barreto,Marliton R.
A total of 3408 strains of Bacillus thuringiensis were collected from 1448 soil samples in 10 Brazilian states, four different geographical regions, covering 96 counties. These strains were evaluated against Spodoptera frugiperda (J.E. Smith) larvae. Only 62% killed between 81% and 100% and 1758 caused no mortality. Highest proportion of efficient strains (larval mortality above 75%) was found from the total isolated per region in the South Region (16.6%), followed by Western Central (3.1%), Southeast (1.1%) and Northeast Region (0.4%).
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Insect; Bacteria; Native isolate; Biological control; Pathology.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000400014

Bacteremia due to Achromobacter xylosoxidans in neonates: clinical features and outcome
Provedor de dados: 55
Autores: Turel,Ozden; Kavuncuoglu,Sultan; Hosaf,Emine; Ozbek,Sibel; Aldemir,Esin; Uygur,Turkan; Hatipoglu,Nevin; Siraneci,Rengin.
OBJECTIVE: We report an outbreak of Achromobacter xylosoxidans at a neonatal intensive care unit. We aimed to present clinical, laboratory and treatment data of the patients. Materials and METHODS: All consecutive episodes of bacteremia due to A. xylosoxidans at our neonatal intensive care unit, beginning with the index case detected at November 2009 until cessation of the outbreak in April 2010, were evaluated retrospectively. RESULTS: Thirty-four episodes of bacteremia occurred in 22 neonates during a 6-month period. Among the affected, 90% were preterm newborns with gestational age of 32 weeks or less and 60% had birth weight of 1000 g or less. Endotracheal intubation, intravenous catheter use, total parenteral nutrition and prolonged antibiotic therapy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Achromobacter xylosoxidans; Bloodstream infection; Neonate.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000400011

Bacteria associated with Amblyomma cajennense tick eggs
Provedor de dados: 74
Autores: Machado-Ferreira,Erik; Vizzoni,Vinicius Figueiredo; Piesman,Joseph; Gazeta,Gilberto Salles; Soares,Carlos Augusto Gomes.
Abstract Ticks represent a large group of pathogen vectors that blood feed on a diversity of hosts. In the Americas, the Ixodidae ticks Amblyomma cajennense are responsible for severe impact on livestock and public health. In the present work, we present the isolation and molecular identification of a group of culturable bacteria associated with A. cajennense eggs from females sampled in distinct geographical sites in southeastern Brazil. Additional comparative analysis of the culturable bacteria from Anocentor nitens, Rhipicephalus sanguineus and Ixodes scapularis tick eggs were also performed. 16S rRNA gene sequence analyses identified 17 different bacterial types identified as Serratia marcescens, Stenotrophomonas maltophilia, Pseudomonas fluorescens,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amblyomma cajennense; Tick eggs bacteria; Staphylococcus; Ixodidae.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000400477

Bacterial community characterization of water and intestine of the shrimp Litopenaeus stylirostris in a biofloc system
Provedor de dados: 5
Autores: Cardona, Emilie; Gueguen, Yannick; Magré, Kevin; Lorgeoux, Bénédicte; Piquemal, David; Pierrat, Fabien; Noguier, Florian; Saulnier, Denis.
Background  Biofloc technology (BFT), a rearing method with little or no water exchange, is gaining popularity in aquaculture. In the water column, such systems develop conglomerates of microbes, algae and protozoa, together with detritus and dead organic particles. The intensive microbial community presents in these systems can be used as a pond water quality treatment system, and the microbial protein can serve as a feed additive. The current problem with BFT is the difficulty of controlling its bacterial community composition for both optimal water quality and optimal shrimp health. The main objective of the present study was to investigate microbial diversity of samples obtained from different culture environments (Biofloc technology and clear...
Tipo: Text
Palavras-chave: Shrimp; Biofloc; Clear sea water; Bacterial communities; Culture environment; Microbiota.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00346/45694/45314.pdf

Bacterial consortium for copper extraction from sulphide ore consisting mainly of chalcopyrite
Provedor de dados: 58
Autores: Romo,E.; Weinacker,D.F.; Zepeda,A.B.; Figueroa,C.A.; Chavez-Crooker,P.; Farias,J.G.
The mining industry is looking forward for bacterial consortia for economic extraction of copper from low-grade ores. The main objective was to determine an optimal bacterial consortium from several bacterial strains to obtain copper from the leach of chalcopyrite. The major native bacterial species involved in the bioleaching of sulphide ore (Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans, Leptospirillum ferrooxidans and Leptospirillum ferriphilum) were isolated and the assays were performed with individual bacteria and in combination with At. thiooxidans. In conclusion, it was found that the consortium integrated by At. ferrooxidans and At. thiooxidans removed 70% of copper in 35 days from the selected ore, showing significant differences...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioleaching; Acidithiobacillus ferrooxidans; Acidithiobacillus thiooxidans.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200032

Bacterial diversity in soil in response to different plans, phosphate fertilizers and liming
Provedor de dados: 58
Autores: Silva,Paulo da; Nahas,Ely.
The diversity of bacterial isolates from soil in response to different plants (control, Brachiaria ruziziensis and Cajanus cajan), fertilization (control, simple superphosphate and rock phosphate) and liming (with and without lime) was evaluated. Phenotypic and physiological characteristics of the isolates were recorded and organized in a file to identify the bacteria. Among the isolates, 95% were Gram-positive and 5% Gram-negative rods. Soil cultivated with B. ruziziensis favored the nonsporing Gram-positive and Gram-negative rods compared to soils with C. cajan or uncultivated. Number of spore-forming Gram-positive rods were higher in plots with superphosphate than in unfertilized soil or soil fertilized with rock phosphate. In unfertilized plots, larger...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria; Phosphate; Brachiaria ruziziensis; Cajanus cajan; Liming.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000400005

Bacterial Dynamics in a Microphytobenthic Biofilm: a Tidal Mesocosm Approach
Provedor de dados: 5
Autores: Agogue, Helene; Mallet, Clarisse; Orvain, Francis; De Crignis, Margot; Mornet, Francoise; Dupuy, Christine.
In intertidal mudflats, during low tide exposure, microphytobenthos (MPB) migrate vertically through the surface sediment and form, with the heterotrophic bacteria, a transient biofilm. Inside this biofilm, multiple interactions exist between MPB and bacteria. These micro-organisms secrete a wide range of extracellular polymeric substances (EPS), which are major components of the biofilm matrix. In this study, we used a tidal mesocosm experiment in order to decipher the interactions of the MPB-EPS-bacteria complex within the biofilm. We tried to determine if the EPS could control bacterial activities and/or production and/or richness according to the age of the biofilm and to the immersion/emersion period. The dynamics of biomasses of MPB and prokaryotes,...
Tipo: Text
Palavras-chave: Muddy sediment; Microphytobenthos; Bacteria; Extracellular polymeric substances; Interactions; Mesocosm.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00181/29271/27682.pdf

Bacterial Foodborne Disease: Medical Costs and Productivity Losses
Provedor de dados: 31
Autores: Buzby,   Jean C.; Roberts,   Tanya; Lin,   Chung-Tung Jordan; MacDonald,   James M.
Microbial pathogens in food cause an estimated 6.5-33 million cases of human illness and up to 9,000 deaths in the United States each year. Over 40 different foodborne microbial pathogens, including fungi, viruses, parasites, and bacteria, are believed to cause human illnesses. For six bacterial pathogens, the costs of human illness are estimated to be $9.3-$12.9 billion annually. Of these costs, $2.9-$6.7 billion are attributed to foodborne bacteria. These estimates were developed to provide analytical support for USDA's Hazard Analysis and Critical Control Point (HACCP) systems rule for meat and poultry. (Note that the parasite Toxoplasma gondii is not included in this report.) To estimate medical costs and productivity losses, ERS uses four severity...
Tipo: Report
Palavras-chave: Cost-of-illness; Foodborne pathogens; Lost productivity; Medical costs; Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/33991

Bacterial necrosis of macrobrachium larvae
Provedor de dados: 5
Autores: Le Bitoux, J.f.; Lacroix, Denis; AQUACOP.
[NOT CONTROLLED OCR]
Tipo: Text
Ano: 1978
URL: http://archimer.ifremer.fr/doc/1978/rapport-4441.pdf

Bacterial Resistance and the Optimal Use of Antibiotics
Provedor de dados: 31
Autores: Laxminarayan,   Ramanan.
The increasing resistance of harmful biological organisms (bacteria, parasites, and pests) to selection pressure from the widespread use of control agents such as antibiotics, antimalarials, and pesticides is a serious problem in both medicine and agriculture. Modeling resistance-or, conversely, the effectiveness of these control agents as a biological resource-yields insights into how these agents should be optimally managed to maximize their economic benefit to society. This paper uses a model of evolution of bacterial resistance to antibiotics-in which resistance places an evolutionary disadvantage on the resistant organism-to develop a simple sequential algorithm of optimal antibiotic use. Although the solution to this problem follows the...
Tipo: Working or Discussion Paper
Palavras-chave: Antibiotic resistance; Natural resource; Optimization; Health Economics and Policy; I0; Q0.
Ano: 2001
URL: http://purl.umn.edu/10479

Bacterial selection for biological control of plant disease: criterion determination and validation
Provedor de dados: 58
Autores: Mota,Monalize Salete; Gomes,Cesar Bauer; Souza Júnior,Ismail Teodoro; Moura,Andréa Bittencourt.
Abstract This study aimed to evaluate the biocontrol potential of bacteria isolated from different plant species and soils. The production of compounds related to phytopathogen biocontrol and/or promotion of plant growth in bacterial isolates was evaluated by measuring the production of antimicrobial compounds (ammonia and antibiosis) and hydrolytic enzymes (amylases, lipases, proteases, and chitinases) and phosphate solubilization. Of the 1219 bacterial isolates, 92% produced one or more of the eight compounds evaluated, but only 1% of the isolates produced all the compounds. Proteolytic activity was most frequently observed among the bacterial isolates. Among the compounds which often determine the success of biocontrol, 43% produced compounds which...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhizobacteria; Antibiosis; Mesocriconema xenoplax; Obligate parasites; Perennial plants.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100062

Bacterial spot and early blight biocontrol by epiphytic bacteria in tomato plants
Provedor de dados: 86
Autores: Lanna Filho,Roberto; Romeiro,Reginaldo da Silva; Alves,Eduardo.
The objective of this work was to evaluate in vitro and in vivo biocontrol of bacterial spot (Xanthomonas vesicatoria) and early blight (Alternaria solani) by the epiphytic bacteria Paenibacillus macerans and Bacillus pumilus. Tomato plants were previously sprayed with epiphytic bacteria, benzalkonium chloride and PBS buffer and, after four days, they were inoculated with A. solani and X. vesicatoria. To determine the phytopathogenic bacteria population, leaflet samples were collected from each treatment every 24 hours, for seven days, and plated on semi-selective medium. The effect of epiphytic bacteria over phytopathogens was performed by the antibiosis test and antagonistic activity measured by inhibition zone diameter. The epiphytic and benzalkonium...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternaria solani; Bacillus pumilus; Paenibacillus macerans; Xanthomonas vesicatoria; Biological control; Epiphytic bacteria.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010001200007

Bactérias de filoplano de maracujazeiro como agente de controle biológico da mancha-bacteriana.
Provedor de dados: 21
Autores: Silva, Washington Luis Manduca da.
Objetivou-se com esse trabalho selecionar bacterias residentes de filoplano de maracujazeiro como possivel agente de biocontrole da mancha-bacteriana que tem como agente causai a bacteria Xanthomonas axonopodis pv. passiflorae (Xap) e estudar os mecanismos de acao envolvidos no controle biologico. A primeira etapa de selecao baseou-se em testes in vivo com 224 isolados obtidos a partir de folhas sadias de maracujazeiro amarelo coletadas em pomares comerciais, sendo 102 oriundos do estado de Roraima, 72 do Para e 50 de Sao Paulo. Estes foram testados em casa-de-vegetacao no controle das bacterias fitopatogenicas originadas dos estados de Roraima (Xap-RR), Sao Paulo (Xap-SP) e Para (Xap-PA). Apos esta etapa, foram selecionados os residentes de filoplano...
Tipo: Thesis
Palavras-chave: Farming Systems Crop health; Quality; Protection.
Ano: 2013
URL: http://orgprints.org/25027/1/Silva_Bact%C3%A9rias.pdf

Bacterias patógenas de larvas de Bombyx mori L. en áreas de reproducción en Cuba
Provedor de dados: 100
Autores: Díaz Sánchez,Adrian A.; Corzo López,Mylene; Báez Arias,Michel; Espinosa Castaño,Ivette; Prieto Abreu,Marlene; Fiallo Madruga,Roberto C.; Pérez Hernández,María del Carmen; Martínez Zubiaur,Yamila.
Los aislados bacterianos SUR - 6, DiP/2012 y Oct/Y se obtuvieron a partir de gusanos de seda (Bombyx mori L.) infectados naturalmente, los cuales presentaban síntomas evidentes de flacheria bacteriana. El presente trabajo tuvo como objetivo identificar los patógenos bacterianos asociados a estos síntomas observados en las crías de gusano de seda en zonas de Cuba, para establecer medidas de control y saneamiento. Los estudios morfológico, bioquímico y fisiológico de los aislados permitieron identificarlos como Enterobacter cloacae (SUR - 6), Serratia marcescens (DiP/2012) y Acinetobacter baumanii (Oct/Y), los cuales, en la literatura, son informados ampliamente como patógenos de insectos.
Tipo: Journal article
Palavras-chave: Bombyx mori L.; Flacheria; Septicemia bacteriana; Serratia marcescens; Enterobacter cloacae; Acinetobacter baumanii.
Ano: 2014
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522014000300010

Bacteriocin like substance production by Carnobacterium piscicola in a continuous system with three culture broths. Study of antagonism against Listeria monocytogenes on vacuum packaged salmon
Provedor de dados: 58
Autores: Schöbitz,Renate P.; Bórquez,Pamela A.; Costa,Marcia E.; Ciampi,Luigi R.; Brito,Carmen S.
Three culture media were studied for the bacteriocin like substance (BLS) production from Carnobacterium piscicola L 103 in a batch and continuous culture system. The efficacy of the antagonistic substance against Listeria monocytogenes was tested on vacuum packaged salmon. BLS was produced in a 1.0 L bioreactor by batch and continuous culture using D-MRS, mod. D-MRS and APT as nutrient broths. Salmon fillets were inoculated with BLS (200 AU mL-1 and 800 AU mL-1) and 8.0 x 10¹ cfu cm-2 of L. monocytogenes and stored at 4ºC. The growth of L. monocytogenes was determined every 5 days during 15 days. After 12 h of batch culture the stationary growth phase of C. piscicola L 103 started, with a BLS activity of 800 AU mL-1 in D-MRS and mod. D-MRS broth, and of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carnobacterium piscicola; Bacteriocin like substance production; Continuous system; Listeria monocytogenes antagonism; Vacuum packaged salmon.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000100010

Bacteriocinogenic Lactococcus lactis subsp. lactis DF04Mi isolated from goat milk: Application in the control of Listeria monocytogenes in fresh Minas-type goat cheese
Provedor de dados: 58
Autores: Furtado,Danielle N.; Todorov,Svetoslav D.; Landgraf,Mariza; Destro,Maria T.; Franco,Bernadette D.G.M.
Listeria monocytogenes is a pathogen frequently found in dairy products. Its control in fresh cheeses is difficult, due to the psychrotrophic properties and salt tolerance. Bacteriocinogenic lactic acid bacteria (LAB) with proven in vitro antilisterial activity can be an innovative technological approach but their application needs to be evaluated by means of in situ tests. In this study, a novel bacteriocinogenic Lactococcus lactis strain (Lc. lactis DF4Mi), isolated from raw goat milk, was tested for control of growth of L. monocytogenes in artificially contaminated fresh Minas type goat cheese during storage under refrigeration. A bacteriostatic effect was achieved, and counts after 10 days were 3 log lower than in control cheeses with no added LAB....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteriocin; Lc. lactis subsp. lactis; Biopreservation; Fresh cheese; Goat cheese.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100201

Bacteriocins: exploring alternatives to antibiotics in mastitis treatment
Provedor de dados: 58
Autores: Pieterse,Reneé; Todorov,Svetoslav D.
Mastitis is considered to be the most costly disease affecting the dairy industry. Management strategies involve the extensive use of antibiotics to treat and prevent this disease. Prophylactic dosages of antibiotics used in mastitis control programmes could select for strains with resistance to antibiotics. In addition, a strong drive towards reducing antibiotic residues in animal food products has lead to research in finding alternative antimicrobial agents. In this review we have focus on the pathogenesis of the mastitis in dairy cows, existing antibiotic treatments and possible alternative for application of bacteriocins from lactic acid bacteria in the treatment and prevention of this disease.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mastitis; Antibiotic; Milk; Bacteriocin; Food safety.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300003

Bacteriocins from lactic acid bacteria: purification, properties and use as biopreservatives
Provedor de dados: 52
Autores: Parada,José Luis; Caron,Carolina Ricoy; Medeiros,Adriane Bianchi P.; Soccol,Carlos Ricardo.
Biopreservation systems in foods are of increasing interest for industry and consumers. Bacteriocinogenic lactic acid bacteria and/or their isolated bacteriocins are considered safe additives (GRAS), useful to control the frequent development of pathogens and spoiling microorganisms in foods and feed. The spreading of bacterial antibiotic resistance and the demand for products with fewer chemicals create the necessity of exploring new alternatives, in order to reduce the abusive use of therapeutic antibiotics. In this context, bacteriocins are indicated to prevent the growth of undesirable bacteria in a food-grade and more natural way, which is convenient for health and accepted by the community. According to their properties, structure, molecular weight...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lactic acid bacteria; Bacteriocins; Purification; Food preservation.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300018

Bacteriocins produced by L. fermentum and L .acidophilus can inhibit cephalosporin resistant E .coli.
Provedor de dados: 58
Autores: Riaz,Saba; Nawaz,Syed Kashif; Hasnain,Shahida.
Reemerging infections occur due to resistant bacteria. Such infections create restrictions for clinicians and microbiologists in drug selection. Such problems demand new strategies for solution. Use of bacteriocins for this purpose may be fruitful. In the present research work, the inhibitory effects of bactericins on cephalosporin resistant Escherichia coli are used as model system for the control of antibiotic resistant pathogenic bacteria. Cephalosporin resistant Escherichia coli strain was isolated from pus by using conventional methodology. For bacteriocin production, Lactobacilli strains were selected by using selective media. Out of seventy two strains isolated from yogurt, fecal materials of human, chick, parrot and cat, only two strains (strain 45...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cephalosporin resistant Escherichia coli; Bacteriocin; Antibiotic resistance; Lactobacillus fermentum; Lactobacillus acidophilus.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300015

Bacteriological investigation of microorganisms (Salmonella sp. and other Enterobacteriaceae) in common quails (Coturnix coturnix) submitted to different forced-molting procedures
Provedor de dados: 89
Autores: Teixeira,RSC; Cardoso,WM; Lopes,ES; Rocha-e-Silva,RC; Albuquerque,AH; Horn,RV; Salles,RPR.
The aim of this study was to investigate the presence of Salmonella in common quails submitted to forced molting. A total of 240 quails were divided at 40 weeks of age into four groups: CG (control, quails not submitted to molting); FM (fasting method); WM (fed wheat midds ad libitum); and ZM (zinc oxide method). From each group, 10 cloacal swabs, 10 fecal samples, and 20 egg samples were collected before molting (two weeks) and after molting (two weeks). The microbiological procedures for Salmonella spp. identification were performed in four steps. The agglutination test, using somatic and flagellar antigens, was used to confirm Salmonella-suspected colonies. According to the methodology applied, none of the samples was positive for Salmonella spp. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggs; Forced molting; Zinc oxide; Fasting; Wheat midds diet.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000100008

Bacteriophages as a model for studying carbon regulation in aquatic system
Provedor de dados: 17
Autores: Swapnil G. Sanmukh; Waman N. Paunikar; Sandhya Swaminathan; Satish K. Lokhande.
The interconversion of carbon in organic, inorganic and refractory carbon is still beyond the grasp of present environmentalists. The bacteria and their phages, being the most abundant constituents of the aquatic environment, represent an ideal model for studing carbon regulation in the aquatic system. The refractory dissolved organic carbon (DOC), a recently coined terminology from the microbe-driven conversion of bioavailable organic carbon into difficult-to-digest refractory DOC by microbial carbon pump (MCP), is suggested to have the potential to revolutionize our view of carbon sequestration. It is estimated that about 95% of organic carbon is in the form of refractory DOC, which is the largest pool of organic matter in the ocean. The refractory DOC...
Tipo: Manuscript
Palavras-chave: Ecology; Earth &amp; Environment.
Ano: 2012
URL: http://precedings.nature.com/documents/6770/version/1

Bacterioplankton Activity in a Meso-eutrophic Subtropical Coastal Lagoon
Provedor de dados: 5
Autores: Schmitz Fontes, Maria L.; Fernandes, Heloísa; Brandão, Manoela; Hennemann, Mariana Coutinho; Aparecida Loss, Raquel; De Souza Grinevicius, Valdelúcia Maria Alves; Tonetta, Denise; Cesca, Karina; Hessel Silveira, Mônica; Bedin, Mara; Recouvreux, Derce; Vasconcellos Antônio, Regina.
The aim of this study was to investigate whether the bacterioplankton activity in the meso-eutrophic Conceição Lagoon would increase significantly under allochthonous inputs of inorganic nutrients and organic carbon. Abundance and biomass of bacterioplankton were evaluated under three treatments: light (14 h light/10 h dark), complete darkness (dark-control), and nutrient (C + N + P—dark, 100 : 10 : 1) enrichments during 72 h. Nutrient enrichments promoted a significant increase in abundance (maximum of 19.0 ×109 cells·L−1 in the first 32 hours) and biomass of the heterotrophic bacterioplankton, which induced the formation of large clusters. Bacterial biomass remained constant in the non-enriched incubations (dark-control and light). Bacterial growth rates...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00597/70922/69162.pdf

Bactrocera oleae (Gmelin) control in organic olive farming.
Provedor de dados: 21
Autores: Iannotta, Nino; Belfiore, Tiziana; Noce, Maria Elena; Scalercio, Stefano; Vizzarri, Veronica.
In the Mediterranean area the olive fly control, difficult to realise in conventional farming, becomes even more arduous in organic farming, owing to the restrictions laid down by Regulation. The EC Reg. 2092/91 which implements organic farming and its updates provide standards allowing only the use of natural origin substances for crop protection contained in annex IIB, forbidding the chemical pesticides use. The present study has been performed in Calabria (Southern Italy) in two different pedoclimatic olive areas (Mirto-Crosia and Terranova da Sibari) and in two observation years (2005-2006) in order to assess the efficacy of substances listed in the annex IIB as copper (antibacterial substance) and biopesticides azadiracthin and rotenone and the...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Olive.
Ano: 2007
URL: http://orgprints.org/12891/1/Ecoliva_efficacia_def.pdf

Baculovirus erinnyis para o controle biológico do mandarová da mandioca.
Provedor de dados: 14
Autores: RINGENBERG, R.
bitstream/item/183051/1/116-121.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Manioc; Inseto Para Controle Biológico; Agricultura Familiar; Biological control; Insects; Family farms.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1095790

Bagging time of ‘Prata-anã’ banana regarding anthracnose control
Provedor de dados: 94
Autores: Fernandes,Martielle Batista; Mizobutsi,Edson Hiydu; Rodrigues,Maria Luisa Mendes; Ribeiro,Regina Cássia Ferreira; Mizobutsi,Gisele Polete; Pinho,Danilo Batista.
Abstract  The aim of this work was to determine the bagging time of ‘Prata Anã’ banana in order to reduce anthracnose disease. Treatments consisted of protection of banana bunches with TNT bags at emission, 30, 60, 90 and 120 days after emission and of unpacked bunches. Fruits were collected, stored in refrigeration chamber (25 ± 1 °C and 80 ± 5% RH) and evaluated for anthracnose incidence and severity. The study design was completely randomized with six treatments, repeated over two years. Data were submitted to analysis of variance and Tukey test (p &lt;0.05). The physical and chemical characteristics of stored fruits were evaluated every three days for 12 days. The study design was completely randomized with six treatments, four evaluation periods,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bagging; Incidence and severity; Post-harvest conservation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000100402

Baicalin reduces the severity of experimental autoimmune encephalomyelitis
Provedor de dados: 56
Autores: Zeng,Y.; Song,C.; Ding,X.; Ji,X.; Yi,L.; Zhu,K.
Scutellaria baicalensis Georgi is one of the important medicinal herbs widely used for the treatment of various inflammatory diseases in Asia. Baicalin (BA) is a bioactive anti-inflammatory flavone found abundantly in Scutellaria baicalensis Georgi. To explore the therapeutic potential of BA, we examined the effects of systemic administration of the flavone (5 and 10 mg/kg, ip) on relapsing/remitting experimental autoimmune encephalomyelitis (EAE) induced by proteolipid protein 139-151 in SJL/J mice, an experimental model of multiple sclerosis. The mice treated with PBS or BA at day -1 and for 3 consecutive days were observed daily for clinical signs of disease up to 60 days after immunization. In the PBS-EAE group, neurological scores were: incidence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experimental autoimmune encephalomyelitis; Baicalin; IFN-g; IL-4; Neurologic score.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000700016

Bait sprays - an alternative to control the European cherry fruit fly Rhagoletis  cerasi ?
Provedor de dados: 21
Autores: Köppler, Kirsten; Storch, Volker; Vogt, Heidrun.
In 2005 initial experiments were carried out to control Rhagoletis cerasi with bait sprays. We used GF-120  fruit fly bait which contains Spinosad and NeemAzal®-T/S mixed in a sugar-yeast hydrolysate solution. 30 ml  of bait sprays were applied on single cherry trees in field cages, where we released a defined number of  cherry fruit flies. One experiment with GF-120 resulted in a reduction of fruit infestation of 96 % compared  with the control. In other trials with GF-120 and Neem bait the effect on the cherry fruit fly population was  monitored. After 24 hours GF-120 in a 5 % and 20 % solution led to a high reduction of flies (efficacy 85 %),  whereas NeemAzal®-T/S in a 5 %, 10 %, and 20 % solution only resulted in efficacies between 34 % and  42 %. A...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006
URL: http://orgprints.org/13794/1/ecofruit_12th_11.pdf

„Bait Sprays“ - eine Alternative zur Bekämpfung der Europäischen Kirschfruchtfliege Rhagoletis cerasi ?
Provedor de dados: 21
Autores: Köppler, Kirsten; Storch, Volker; Vogt, Heidrun.
In 2005 initial experiments were carried out to control Rhagoletis cerasi with bait sprays. We used GF-120 fruit fly bait which contains Spinosad and NeemAzal®-T/S mixed in a sugar-yeast hydrolysate solution. 30 ml of bait sprays were applied on single cherry trees in field cages, where we released a defined number of cherry fruit flies. One experiment with GF-120 resulted in a reduction of fruit infestation of 96 % compared with the control. In other trials with GF-120 and Neem bait the effect on the cherry fruit fly population was monitored. After 24 hours GF-120 in a 5 % and 20 % solution led to a high reduction of flies (efficacy 85 %), whereas NeemAzal®-T/S in a 5 %, 10 %, and 20 % solution only resulted in efficacies between 34 % and 42 %.  A...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006
URL: http://orgprints.org/8818/1/ecofruit_12th_11.pdf

Balanced cytokine-producing pattern in mice immunized with an avirulent Trypanosoma cruzi
Provedor de dados: 42
Autores: Soares,Milena B. P.; Gonçalves,Renata; Pyrrho,Alexandre S.; Costa,Deise A.; Paiva,Claudia N.; Gattass,Cerli R.
We have previously demonstrated that inoculation of BALB/c mice with trypomastigotes of CL-14, an avirulent Trypanosoma cruzi clone, prevents the development of parasitemia and mortality after challenge with virulent CL strain. In this report, we investigated the cytokine and antibody profiles induced by inoculation with CL-14 clone. Groups of mice were inoculated with trypomastigotes of CL-14 clone and challenged with infective CL strain. Challenged CL-14-inoculated mice had lower levels of IFN-&lt;FONT FACE=Symbol&gt;g&lt;/font&gt; and higher production of IgG1 antibodies as compared to CL strain-infected mice. Previous inoculation with CL-14 clone partially prevented the suppression of IL-2 production caused by CL strain infection. No significant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trypanosoma cruzi; Protection; Cytokines; Humoral response.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000200005

Balanced Scorecard as support to management decisions: A case study in a small property milk production
Provedor de dados: 22
Autores: Cardoso, Antônio Augusto Brion; Lopes, Marcos Aurélio; Carvalho, Francisval de Melo; Ferrazza, Rodrigo Andrade; Lima, André Luís Ribeiro; Cardoso, Milton Ghedini.
Aimed to apply the Balanced Scorecard (BSC) in a dairy farm with small-scale production, located in the south of Minas Gerais. The survey was conducted from January to December 2013 and the gathering of information was carried out through semi-structured interviews on the spot. As data collection instruments were used personal interviews, document analysis and direct and participant observation. The farm has 216 ha, 80% of the leased area. The activities are dairy farming, corresponding to 80% of revenues, and the cultivation of coffee. The breeding farm is 22 predominantly Holstein cows (¾ H) that are loose in the pasture. Daily production is 350 liters average of 15.9 liters of milk per cow in milk, in two daily milkings. The strong point is the low cost...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Small scale; Management tool; Dairy farming; Strategic planning.
Ano: 2017
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/14404

Balanced Scorecard em uma Propriedade Pecuária
Provedor de dados: 31
Autores: Brisolara,   Claudio Silveira.
A crescente exposição das empresas agropecuárias aos riscos do ambiente externo, que se somam aos riscos climáticos e biológicos, tem suscitado a utilização de novos sistemas de gerenciamento nas empresas rurais. A premência da modernização das técnicas de gestão, por meio da utilização ferramentas simples e efetivas de controle e planejamento dos empreendimentos, foi a motivação principal desse estudo. Foi desenvolvida uma pesquisa exploratória, por meio de um estudo de caso, visando propor um sistema gerencial para uma propriedade dedicada à bovinocultura de corte no Rio Grande do Sul, a partir do referencial metodológico do Balanced Scorecard – BSC. Os resultados encontrados mostraram que há viabilidade de adaptação do BSC às empresas pecuárias, tendo...
Tipo: Conference Paper or Presentation
Palavras-chave: Balanced Scorecard; Bovinos de corte; Administração Rural; Balanced Scorecard; Beef cattle; Farm management; Environmental Economics and Policy; Farm Management.
Ano: 2008
URL: http://purl.umn.edu/102555

Balancing guava nutrition with liming and fertilization
Provedor de dados: 94
Autores: Hernandes,Amanda; Parent,Serge-Étienne; Natale,William; Parent,Léon Étienne.
Guava response to liming and fertilization can be monitored by tissue testing. Tissue nutrient signature is often diagnosed against nutrient concentration standards. However, this approach has been criticized for not considering nutrient interactions and to generate numerical biases as a result of data redundancy, scale dependency and non-normal distribution. Techniques of compositional data analysis can control those biases by balancing groups of nutrients, such as those involved in liming and fertilization. The sequentially arranged and orthonormal isometric log ratios (ilr) or balances avoid numerical bias inherent to compositional data. The objectives were to relate tissue nutrient balances with the production of "Paluma" guava orchards differentially...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Psidium guajava; Compositional data analysis; Isometric log ratios (ilr); Plant mineral nutrition; Aitchison geometry.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000400032

Balancing noise and plasticity in gene expression
Provedor de dados: 17
Autores: Djordje Bajic; Juan F. Poyatos.
Coupling the control of expression stochasticity (noise) with the capacity to expression change (plasticity) can constrain gene function and limit adaptation. Which factors contribute then to modulate this coupling? Transcription re-initiation is generally associated with coupling and this is commonly related to strong chromatin regulation. We alternatively show how strong regulation can however lead to plasticity uncorrelated to noise. The character of the regulation is also relevant, with plastic but noiseless genes usually subjected to broad expression activation whereas plastic and noisy genes experience targeted repression. This differential action is similarly noticed in how histones influence these genes. In contrast, we find that translational...
Tipo: Manuscript
Palavras-chave: Genetics &amp; Genomics; Molecular Cell Biology; Bioinformatics; Evolutionary Biology.
Ano: 2011
URL: http://precedings.nature.com/documents/6729/version/1

Balise intelligente pour mesure scientifique
Provedor de dados: 5
Autores: Guillerm, G.
MORS ENVIRONNEMENT has developed for the University of Hawaii a new system, SI 4X1-3, for study of movement of tectonic plate. In a single unit are gathered an acoustic rangemeter, a data acquisition unit (for 8 external sensors), a long range telemetry, and a power pack for 6 to 10 years life. The surface unit is a standard 16 frequencies RM 201 "OCEANO INSTRUMENTS" rangemeter. The programmation, the data transmission control, and the exploitation of the measures are done with a compatible IBM/AT. This system includes the know-how of SUBER and OCEANO INSTRUMENTS, and finds today a very large application field: Control and command of instrumented closing pigs; Seawater quality control without buoys and transmission up to 8 km; Corrosion control on platform...
Tipo: Text
Palavras-chave: Acoustic equipment; Marine technology; Plate tectonics.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/acte-1169.pdf

Banana leaf in the diet of laying hens in cage free system
Provedor de dados: 2
Autores: Silva, Nayara Emanuelle Matos e; Lima, Heder José D'Ávila; Valentim, Jean kaique; Tossué, Fernandes Jesuino Mukissaí; Bittencourt, Tatiana Marques; Velarde, Jonatan Mikhail Del Solar.
The aim of this research was evaluate the productive performance, egg quality and the endoparasites presence on Carijo laying hens in Cage Free system, fed with two experimental diets, one of them supplemented with fresh banana leaf in natura. Were used 196 laying hens with twenty-four weeks of age, distributed in a completely randomized design with 14 boxes, two experimental diets and seven replicates, by treatment with fourteen birds per experimental unit. The variables analyzed were: feed intake; egg production; egg mass: feed conversion per egg mass; feed conversion per dozen eggs; egg weight; albumen weight; yolk weight; shell weight; yolk percentage; albumen percentage shell percentage; yolk pigmentation and the presence of endoparasites. No...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Avicultura; Nurição de não ruminantes Performance; Banana production; Endoparasites; Cage-Free.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46908

Banana Supply Chains in Indonesia and Australia: Surviving Isolation from End markets
Provedor de dados: 31
Autores: Singgih,   Shinta; Woods,   Elizabeth.
Two banana supply chains (BSC), one in Indonesia (BSC1) and one in Australia (BSC2), are described based on case study research conducted in 2002. BSC1 sources bananas from small farmers for distribution through traditional markets in Jakarta. BSC2 includes farmers supplying to both major and independent retailers in Sydney through a wholesale agency with some farmer ownership. Farmers in both chains live in relative isolation from the main markets for their bananas. Prices for their bananas depend on the market prices in the city, upon which they have little control. This paper focuses on how farmers removed from key markets, deal with buyers to receive fair prices. In both chains, most transactions between farmers and their buyers were completed through...
Tipo: Conference Paper or Presentation
Palavras-chave: Farmers; Banana supply chain; Isolation; Trust.; Crop Production/Industries; Industrial Organization.
Ano: 2003
URL: http://purl.umn.edu/24336

Bananeira.
Provedor de dados: 14
Autores: CALZAVARA, B. B. G.
bitstream/item/61712/1/Belem-RecBas8.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cultivo; Propagação; Controle; Cultivation; Propagation; Pest; Disease; Control; Production.; Banana; Doença; Musa Sapientum; Praga; Produção.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381136

Banco de semillas, germinación y longevidad de semillas de retama (Spartium junceum, Fabaceae): implicancias para su control
Provedor de dados: 51
Autores: Sanhueza,Cristina; Zalba,Sergio.
La retama (Spartium junceum) es una especie invasora de pastizales naturales en las sierras australes bonaerenses. Estudiamos características del proceso de germinación que resultarían clave para su control. Calculamos densidad de semillas y porcentaje de germinación para muestras de suelo provenientes de sectores invadidos. Realizamos ensayos de germinación en panes de tierra mantenidos a la intemperie y ensayos en cámara de germinación con semillas colectadas directamente del arbusto y otras colectadas del banco del suelo siete años antes del ensayo. La densidad en el banco del suelo de áreas invadidas varió entre 600 y 4.411 semillas/m². El porcentaje de germinación de semillas de ensayos en panes de tierra fue de 68,33±26,66%. Para los ensayos en...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spartium junceum; Germinación; Banco de semillas; Invasión; Longevidad.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722014000100007

Band steaming for intra-row weed control in direct-sown vegetables
Provedor de dados: 21
Autores: Melander, Senior scientist Bo; Jørgensen, Scientist Martin Heide.
Recent results with band-steaming in organic vegetables are presented.
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2003
URL: http://orgprints.org/1513/1/Abstract_Skierniewice1.pdf

Band-steaming for intra-row weed control
Provedor de dados: 21
Autores: Melander, Bo; Heisel, Torben; Jørgensen, Martin Heide.
Steaming the soil prior to crop sowing has the potential of eliminating weed seedling emergence completely. Thus, steaming might be a perspective technique for intra-row weed control in non-herbicidal row crops of high value, where manual weeding can be very laborious. This paper presents some preliminary results with the effects of steaming on weed seedling emergence. The work is part of a joint project involving both biological and technical aspects of steaming. The overall objective is to develop an applicable technique for applying steam in bands corresponding to the intra-row area of a row crop. Band-steaming is expected to use much less energy as compared to current steaming techniques for arable usage.
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2002
URL: http://orgprints.org/1545/1/1545.pdf

Band-steaming for intra-row weed control
Provedor de dados: 21
Autores: Melander, Bo; Heisel, Torben.
Steaming the soil prior to crop sowing has the potential of eliminating weed seedling emergence completely. Thus, steaming might be a perspective technique for intra-row weed control in non-herbicidal row crops of high value, where manual weeding can be very laborious. This paper presents some preliminary results with the effects of steaming on weed seedling emergence. The work is part of a joint project involving both biological and technical aspects of steaming. The overall objective is to develop an applicable technique for applying steam in bands corresponding to the intra-row area of a row crop. Band-steaming is expected to use much less energy as compared to current steaming techniques for arable usage.
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2002
URL: http://orgprints.org/1546/1/Pisa_BME_DK_1.pdf

Bang for the Buck: Cost-Effective Control of Invasive Species with Different Life Histories
Provedor de dados: 31
Autores: Buhle,   Eric; Margolis,   Michael; Ruesink,   Jennifer L.
Strategies for controlling invasive species can be aimed at any or all of the stages in the life cycle. In this paper we show how to combine biological data on population dynamics with simple economic data on control cost options to determine the least costly set of strategies that will halt an invasion. We then apply our methods to oyster drills (Ocinebrellus inornatus), an economically important aquaculture pest that has been accidentally introduced worldwide. If the costs of intervention were the same across life stages, extermination of adults would be an inefficient way to control species with the population dynamics characteristics of invaders. In the oyster drill case, however, efficient control targets adults because they are much easier to find.
Tipo: Working or Discussion Paper
Palavras-chave: Invasive species; Bioeconomics; Control strategies; Environmental Economics and Policy; Q10; Q2; Q22.
Ano: 2004
URL: http://purl.umn.edu/10793

Banking Sector Reform and Financial Regulation: It's Effects on Access to Financial Services by Low Income Households in Zambia
Provedor de dados: 31
Autores: Chiumya,   Chiara.
The change in government in 1991 brought about radical economic reform, from state control to an economy led by private sector development. The reforms included decentralisation, privatisation and liberalisation of the financial sector. Liberalisation initially led to the proliferation of financial institutions in the financial sector. However, it also led to a number of bank failures, resulting in the closure of nine commercial banks since 1995. Access to financial services by the majority of Zambian's was further constrained by the closure of unprofitable rural branches by commercial banks, the raising of minimum account balances and the introduction of bank charges, as well as the closure of a number of Government owned financial institutions...
Tipo: Working or Discussion Paper
Palavras-chave: Financial Economics.
Ano: 2005
URL: http://purl.umn.edu/30552

Bankruptcy Risk and Imperfectly Enforced Emissions Taxes
Provedor de dados: 31
Autores: Stranlund,   John K.; Zhang,   Wei.
Under favorable but reasonable conditions, an imperfectly enforced emissions tax produces the efficient allocation of individual emissions control; aggregate emissions are independent of whether enforcement of the tax is sufficient to induce the full compliance of firms, and differences in individual violations are independent of firm-level differences. All of these desirable characteristics disappear when some firms under an emissions tax risk bankruptcy—the allocation of emissions control is inefficient, imperfect enforcement causes higher aggregate emissions, and financially insecure firms choose higher violations.
Tipo: Working or Discussion Paper
Palavras-chave: Bankruptcy; Emissions Taxes; Limited Liability; Environmental Economics and Policy; Public Economics; Risk and Uncertainty; L51; Q28; Q58.
Ano: 2008
URL: http://purl.umn.edu/42127

Bargaining on Ecological Main Structures for Natural Pest Control: Modelling Land Use Regulations as Common Property Management
Provedor de dados: 31
Autores: Nuppenau,   Ernst-August.
In this paper we argue that the loss of bio-diversity hould be of concern for farmers, though it seems to be of little or no concern to them at the moment. As diversity is a component of nature that controls the growth of pests, a loss of bio-diversity means increased exposure to pests, danger of crop failures and, in the long run, lower average yields and profits. So far farmers buy costly pesticides for compensating the reduction of bio-diversity. We argue that institutional problems are the reason why farmers are not concerned with bio-diversity, and show that under pure private property rights farmers have interest in pesticides and not in bio-diversity as a measure of crop protect because they have perhaps to devote land to the natural eco-system. In...
Tipo: Conference Paper or Presentation
Palavras-chave: Common property management; Institution; Crop risk; Bio-diversity; Land Economics/Use; Q28.
Ano: 2006
URL: http://purl.umn.edu/25600

Barium and sodium in sunflower plants cultivated in soil treated with wastes of drilling of oil well
Provedor de dados: 91
Autores: Sampaio Junior,Jésus; Amaral,Nelson M. B. do; Zonta,Everaldo; Magalhães,Marcio O. L.
ABSTRACTThis study aimed to evaluate the effects of the application of two types of oil drilling wastes on the development and absorption of barium (Ba) and sodium (Na) by sunflower plants. The waste materials were generated during the drilling of the 7-MGP-98D-BA oil well, located in the state of Bahia, Brazil. The treatments consisted of: Control – without Ba application, comprising only its natural levels in the soil; Corrected control – with fertilization and without wastes; and the Ba doses of 300, 3000 and 6000 mg kg-1, which were equivalent to the applications of 16.6, 165.9 and 331.8 Mg ha-1 of waste from the dryer, and 2.6, 25.7 and 51.3 Mg ha-1 of waste from the centrifugal. Plants cultivated using the first dose of dryer waste and the second...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heavy metals; Helliantus annus; Salinization.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015001101100

Barley seed coating with urease and phosphatase to improve N and P uptake
Provedor de dados: 63
Autores: Mvila,Beaufray Gilaime; Pilar-Izquierdo,María Concepción; Busto,María Dolores; Perez-Mateos,Manuel; Ortega,Natividad.
ABSTRACT: In this work, barley seed coating with urease and phosphatase, free and immobilized in humic acids, was studied as a tool to enhance the use efficiency of N and P by plants. The seeds were encapsulated in gels of Ca-alginate by a method that allows gelation of the polymer, containing enzymes, from the surface of seeds outward. The coating process did not affect seed germination. A pot experiment with the coated seeds was carried out. The seed coating with free enzymes increased soil ammonium-N (NH4+-N) and inorganic P up to 39 and 54 %, respectively, and up to 62 and 64 %, with the immobilized enzymes, in comparison with control pots. Seed coating improved N (47-137 %) and P (29-61 %) uptake by plants. Moreover, a synergistic response in N and P...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil enzymes; Seed encapsulation; Plant nutrients uptake; Humic acids.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000601401

Barnyardgrass with Multiple Resistance to Synthetic Auxin, ALS and Accase Inhibitors
Provedor de dados: 87
Autores: EBERHARDT,D.S.; OLIVEIRA NETO,A.M.; NOLDIN,J.A.; VANTI,R.M.
ABSTRACT The objective of this research was to confirm the resistance of a barnyardgrass biotype (Echinochloa crus-galli) to herbicides quinclorac (synthetic auxin), penoxsulam (ALS inhibitor) and cyhalofop-butyl (ACCase inhibitor). Two experiments were carried out in a greenhouse located in Itajaí, State of Santa Catarina, Brazil. One experiment evaluating the biotype ECH 18 (known as susceptible) and one with the ECH 141 biotype (suspected to be multiple resistant). The experimental design used was completely randomized, in a 4 x 7 factorial arrangement with four replications. The first factor was the herbicide: cyhalofop-butyl (Clincher(r)), penoxsulam (Ricer(r)), quinclorac (Facet(r)) and propanil (Grassaid(r)) and the second factor consisting of seven...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paddy rice; Echinochloa crus-galli; Chemical control; Herbicide resistance.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400823

Barones, bandidos y rebeldes en la Sicilia española
Provedor de dados: 125
Autores: Torres Arce,Marina.
Este estudio parte de la caracterización del fenómeno del bandolerismo siciliano en la temprana Edad Moderna que la historiografía reciente nos ofrece, a partir del modelo general de bandolerismo mediterráneo, y adelanta el marco temporal de análisis hasta el final del dominio español en la isla. En concreto, el trabajo centra su interés en comprobar hasta qué punto el comportamiento del bandolerismo siciliano se ajusta al patrón de evolución del bandolerismo mediterráneo comúnmente aceptado por la historiografía, según el cual el carácter político y faccional de la actividad bandolera, vinculada a los intereses de las oligarquías -los grandes señores feudales en el caso de Sicilia-, se fue diluyendo a partir de mediados del siglo XVII, por motivos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bandolerismo; Feudalidad; Justicia; Poder; Control social; Sicilia.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1515-59942013000200010

Baroreflex and chemoreflex dysfunction in streptozotocin-diabetic rats
Provedor de dados: 56
Several investigators have demonstrated that streptozotocin (STZ) diabetes induces changes in the autonomic control of the cardiovascular system. Changes in cardiovascular function may be related to peripheral neuropathy. The aim of the present study was to analyze changes in heart rate (HR) and arterial pressure (AP) as well as baroreflex and chemoreflex sensitivity in STZ-induced diabetic male Wistar rats (STZ, 50 mg/kg, iv, 15 days). Intra-arterial blood pressure signals were obtained for control and diabetic rats (N = 9, each group). Data were processed in a data acquisition system (CODAS, 1 kHz). Baroreflex sensitivity was evaluated by measuring heart rate changes induced by arterial pressure variation produced by phenylephrine and sodium...
Palavras-chave: Streptozotocin; Experimental diabetes; Chemoreflex sensitivity; Autonomic dysfunction.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000100018

Baroreflex control of sympathetic activity in experimental hypertension
Provedor de dados: 56
Autores: Irigoyen,M.C.C.; Krieger,E.M.
The arterial baroreceptor reflex system is one of the most powerful and rapidly acting mechanisms for controlling arterial pressure. The purpose of the present review is to discuss data relating sympathetic activity to the baroreflex control of arterial pressure in two different experimental models: neurogenic hypertension by sinoaortic denervation (SAD) and high-renin hypertension by total aortic ligation between the renal arteries in the rat. SAD depresses baroreflex regulation of renal sympathetic activity in both the acute and chronic phases. However, increased sympathetic activity (100%) was found only in the acute phase of sinoaortic denervation. In the chronic phase of SAD average discharge normalized but the pattern of discharges was different from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Baroreflex; Sympathetic activity; Sinoaortic denervation; High-renin hypertension.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000900015

Baroreflex function in conscious rats submitted to iron overload
Provedor de dados: 56
Autores: Cardoso,L.M.; Pedrosa,M.L.; Silva,M.E.; Moraes,M.F.D.; Colombari,E.; Chianca-Jr.,D.A.
Our hypothesis is that iron accumulated in tissue, rather than in serum, may compromise cardiovascular control. Male Fischer 344 rats weighing 180 to 220 g were divided into 2 groups. In the serum iron overload group (SIO, N = 12), 20 mg elemental iron was injected ip daily for 7 days. In the tissue iron overload group (TIO, N = 19), a smaller amount of elemental iron was injected (10 mg, daily) for 5 days followed by a resting period of 7 days. Reflex heart rate responses were elicited by iv injections of either phenylephrine (0.5 to 5.0 µg/kg) or sodium nitroprusside (1.0 to 10.0 µg/kg). Baroreflex curves were determined and fitted to sigmoidal equations and the baroreflex gain coefficient was evaluated. To evaluate the role of other than a direct effect...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Baroreflex; Iron overload; Heart rate; Blood pressure; Iron dextran; Deferoxamine.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000200008

Barreras de maíz en una estrategia de manejo integral para controlar epidemias del virus mancha anular del papayo (PRSV-P)
Provedor de dados: 115
Autores: Hernández-Castro,Elías; Villanueva-Jiménez,J. Antonio; Mora-Aguilera,J. Antonio; Nava-Díaz,Cristian.
Las epidemias ocasionadas por el virus de la mancha anular del papayo (PRSV-P) (Carica papaya L.) se han logrado retrasar mediante un sistema de manejo integral (MIP), aunque no se ha medido la efectividad individual de algunos componentes. Para ello se evaluó el establecimiento de barreras de maíz (Zea mays L.) en el control del PRSV-P en Veracruz, México. El MIP incluyó la protección del vivero con malla de polipropileno, 2743 plantas ha-1, la erradicación de plantas enfermas, la fertilización mineral y el control de arvenses. Los tratamientos fueron: manejo integral con barreras de maíz (MIP), manejo integral sin barreras (MIZ) y manejo regional (MR, 1600 plantas ha-1, con insecticidas, sin barreras ni eliminación de plantas enfermas). El modelo...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carica papaya; Zea mays; Control cultural.
Ano: 2010
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952010000300008

BARRERAS E INCENTIVOS ECONÓMICOS PARA LA RESTAURACIÓN DE LA BIODIVERSIDAD
Provedor de dados: 37
Autores: GARCÍA-FRAPOLLI,EDUARDO; LINDIGCISNEROS,ROBERTO.
Uno de los aspectos fundamentales y menos considerados desde un punto de vista formal, es el de los costos asociados a la restauración ecológica y de los incentivos económicos para llevarla a cabo. A través del análisis de ensayos de restauración con una comunidad indígena en el occidente de México se analizan los aspectos económicos relacionados con proyectos de restauración concretos y con el contexto económico que incentiva la restauración ecológica. Concluimos que, mientras que la relación costo-beneficio del trabajo directamente relacionado con el proceso de restauración puede ser calculado de manera directa en algunos casos, los beneficios asociados a recuperar la diversidad de los ecosistemas restaurados representan mayor dificultad. En cuanto a los...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Restauración; Bosque templado; Costo; Económico; Técnicas.
Ano: 2011
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2011000200019

Barriers to the adoption of organic agriculture An investigation using the Theory of Planned Behaviour
Provedor de dados: 21
Autores: Hattam, Caroline.
Certified organic production by small-scale farmers in developing countries is increasingly promoted as an opportunity to access a growing and dynamic market while at the same time, enhance productivity and improve incomes. Nevertheless, adoption has been slow. The economics literature suggests profitability is the main constraint; however, the sustainable agriculture literature is inconclusive and considers attitudes of significant importance. As ecological behaviour is susceptible to a wide range of influences beyond an individual’s control, environmental attitude alone is often a poor predictor of behaviour (Kaiser et al., 1999). The Theory of Planned Behaviour (Ajzen, 1985) is therefore promoted for studies in the ecological domain as in addition to...
Tipo: Conference paper, poster, etc.
Palavras-chave: Education; Extension and communication Social aspects Farm economics.
Ano: 2006
URL: http://orgprints.org/10182/1/Barriers_to_the_adoption_of_organic_agriculture_%2D_An_investigation_using_the_Theory_of_Planned_Behaviour.pdf

Barriers to the provision of asthma services and perceived practice towards asthma management among urban community pharmacists in Selangor, Malaysia
Provedor de dados: 60
Autores: Akram,Waqas; Ijaz,Naeem; Ahmad,Hassan; Jamshaid,Muhammad; Ismail,Nahlah Elkudssiah.
This study aims to assess the perceived practice and barriers towards the provision of asthma management services among urban community pharmacists in Selangor, Malaysia. The study also highlights both pharmacist and patient-related barriers in asthma counseling. One hundred fifty urban community pharmacists in Selangor, Malaysia, were randomly selected and recruited for the present cross sectional baseline study. Previous studies have explored pharmacists’ perception on their roles in asthma management in different parts of the world. The data was collected through self-explanatory questionnaires (containing 47 items). The extracted data from the completed questionnaires were analyzed descriptively and inferentially using Statistical Package for Social...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asthma; Perceived practive; Treatment barriers; Community pharmacists; Disease management.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000400614

Base de datos para factores de transcripción de Glycine max, Triticum aestivum y Zea maiz.
Provedor de dados: 32
Autores: Ramírez Sánchez, Obed.
Los factores de transcripción (FTs) son proteínas que incrementan o disminuyen la tasa transcripcional de uno o varios genes. Los FTs desempeñan un papel fundamental en el control de casi todos los procesos biológicos: crecimiento, metabolismo, respuesta a factores ambientales, etc. En plantas cultivadas, son de particular importancia aquellos relacionados con la respuesta al estrés (sequía, salinidad, bajas temperaturas, plagas, enfermedades, etc.). La identificación de FTs, su posterior anotación y la construcción de bases de datos públicas constituye un importante recurso para el estudio de los procesos que controlan la expresión génica. Se construyó la base de datos FT-MTS que contiene información de 13,975 genes identificados como FTs en los genomas...
Palavras-chave: Regulación transcripcional; Anotación funcional; Bioinformática; Transcriptional regulation; Functional annotation; Bioinformatics; Cómputo aplicado; Maestría.
Ano: 2012
URL: http://hdl.handle.net/10521/689

Baseline Mapping of Schistosomiasis and Soil Transmitted Helminthiasis in the Northern and Eastern Health Regions of Gabon, Central Africa: Recommendations for Preventive Chemotherapy
Provedor de dados: 5
Autores: Mintsa Nguema, Rodrigue; Mavoungou, Jacques F.; Ngou-milama, Krystina Mengue Me; Mamfoumbi, Modeste Mabicka; Koumba, Aubin A.; Lamine, Mariama Sani; Diarra, Abdoulaye; Asseko, Ghislaine Nkone; Mourou, Jean R.; Akotet, Marielle K. Bouyou; Mone, Helene; Mouahid, Gabriel; Atsame, Julienne.
In order to follow the Preventive Chemotherapy (PC) for the transmission control as recommended by WHO, Gabon initiated in 2014 the mapping of Schistosomiasis and Soil Transmitted Helminthiasis (STH). Here, we report the results of the Northern and Eastern health regions, representing a third of the land area and 12% of its total population. All nine departments of the two regions were surveyed and from each, five schools were examined with 50 schoolchildren per school. The parasitological examinations were realized using the filtration method for urine and the Kato-Katz technique for stool samples. Overall 2245 schoolchildren (1116 girls and 1129 boys), mean aged 11.28 +/- 0.04 years, were examined. Combined schistosomiasis and STH affected 1270 (56.6%)...
Tipo: Text
Palavras-chave: Schistosomiasis; Soil-transmitted-helminthiasis; Mapping; Preventive chemotherapy; Transmission control; Gabon; Central Africa.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00660/77212/78691.pdf

Bases Anatómicas de la Gluteoplastía Dinámica
Provedor de dados: 77
Autores: Borgno,Laura; Scanniello,Varinia; Rompani,Omar; Laxague,Alejandra; Páez,Sofía.
La disrupción anatómica del esfínter es el mecanismo más común de incontinencia fecal. La creación de un mecanismo esfinteriano con control voluntario permite mantener la contracción en el reposo o durante los movimientos y es uno de los principios fisiológicos y quirúrgicos para la continencia. Esta corrección puede realizarse mediante la transposición de músculo glúteo mayor alrededor del ano y recrear así un esfínter voluntario. La gluteoplastía dinámica consiste en la colocación de un marcapasos que permite la estimulación eléctrica crónica intermitente del músculo esquelético, resultando en la adaptación de la contractilidad basal. El objetivo del trabajo consiste en el estudio anatómico de la longitud in situ y esqueletizado del fascículo inferior...
Tipo: Journal article
Palavras-chave: Gluteoplastía; Músculo glúteo máximo; Incontinencia anal.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000300005

Bases para el manejo integrado del recurso langosta (panulirus argus) en la zona costera sur de Pinar del Río, Cuba, II. Factores socio-económicos.
Provedor de dados: 20
Autores: Piñeiro, R.; Puga, R.; González-Sansón, G.
Social-economical activities in the western area of the Batabanó gulf, southern coast of Pinar del Río are analized. The communities do not have a compression of the environmental on the resource, as well as the fragility of the coastal ecosystems. Between the negative effects over the environmental are the indiscriminate cutting, the pollution, all of them due to the ignorance of the mangove forests benefits. The economic activities are industrialists and agriculturists where the spiny lobster fishery (P. argus) is the most important. A decrease of the level of captures from 1990 to 2003, was observed. This behavior reflects the deteriorate conditions of the environment, which limit the recruitment and affect some nursery areas, as well as the...
Tipo: Journal Contribution
Palavras-chave: Environment management; Coastal zone; Lobster fisheries.
Ano: 2007
URL: http://hdl.handle.net/1834/2946

Bases para o estudo da genética de populações dos Hymenoptera em geral e dos Apinae sociais em particular
Provedor de dados: 43
Autores: Kerr,Warwick E.
This paper deals with problems on population genetics in Hymenoptera and particularly in social Apidae. 1) The studies on populations of Hymenoptera were made according to the two basic types of reproduction: endogamy and panmixia. The populations of social Apinae have a mixed method of reproduction with higher percentage of panmixia and a lower of endogamy. This is shown by the following a) males can enter any hive in swarming time; b) males of Meliponini are expelled from hives which does not need them, and thus, are forced to look for some other place; c) Meliponini males were seen powdering themselves with pollen, thus becoming more acceptable in any other hive. The panmixia is not complete owing to the fact that the density of the breeding population...
Tipo: Info:eu-repo/semantics/article
Ano: 1951
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761951000100014

Basic Cooperative Principles and Their Relationship to Selected Practices
Provedor de dados: 31
Autores: Dunn,   John R.
This paper describes a set of basic cooperative principles adopted in a recent Agricultural Cooperative Service study and how these principles relate to various cooperative business practices and issues facing U.S. cooperative organizations. Three principles relating use of a cooperative to ownership, control, and distribution of benefits are outlined. The relationship of these principles to a number of topics, including cooperative membership and control, differential treatment programs, and cooperative finance, is examined.
Tipo: Journal Article
Palavras-chave: Agribusiness; Agricultural Finance.
Ano: 1988
URL: http://purl.umn.edu/46212

Basic research for technical development of new malarial vector control by using sublethal effect of entomopathogenic fungi
Provedor de dados: 19
Autores: 相内, 大吾; AIUCHI, DAIGO.
野生の蚊類より昆虫寄生性アナモルフ菌類の分離を試み、合計392菌株を収蔵する菌株ライブラリを構築した。これら菌株の感染性および病原性を評価したところ13菌株がAnopheles stephensiに対し感染性を有することが明らかとなった。この内、高い感染性を示した5菌株（Lecanicillium属菌2菌株とB. bassiana 3菌株）の病原性を評価したところ、対照区の半数致死日数を半数以下に下回る高病原性系統および対照区と同程度の値を示す弱病原性系統を検出した。
Palavras-chave: 昆虫寄生性アナモルフ菌類; 生物学的防除; 感染症媒介蚊; 亜致死性効果.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3003

Basic results in biological control of the European Cherry Fruit Fly Rhagoletis cerasi L. (Diptera: Tephritidae) with entomopathogenic nematodes
Provedor de dados: 21
Autores: Köppler, Kirsten; Peters, Arne; Vogt, Heidrun.
In 2002 and 2003, within the ‚Bundesprogramm Ökologischer Landbau’, initial experiments to control  the European cherry fruit fly Rhagoletis cerasi were carried out under laboratory, semi-field and  field conditions with several entomopathogenic nematode species and strains. In the laboratory the  efficacy of nematodes against R. cerasi larvae, pupae and adults was examined. To characterize  the controlling potential, different nematode dosages, exposure temperatures and substrates were  tested in cell wells, petri dishes and plastic boxes. In the semi-field experiments plastic fruit boxes,  filled with soil, were used. In the field tests R. cerasi-larvae and nematodes were released in defined  areas in a cherry orchard of the institute. For evaluation of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2004
URL: http://orgprints.org/14033/1/9_Vogt_48_54.pdf

Basic studies for weed control of cultural fields in cerrado.
Provedor de dados: 14
Autores: YAMAMOTO, H.
bitstream/item/178533/1/ID09932-CRI1786.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Planta daninha; Brasil; Japão; BIBJICACPAC.; Cerrado; Controle Cultural; Cooperação Internacional.; Pesquisa; Weed control.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/552990

Basic substances: a new opportunity for approval copper at EC phytopharmaceutical regulation 1107/2009
Provedor de dados: 21
Autores: MARCHAND, Patrice A.
Bio control agents:  BCA, promising for plant protection are the combination of macro organisms, microorganisms, chemical mediators (pheromones, semiochemicals), and natural substances (from mineral, animal, or vegetal origin).   EC regulation:  Following, the enter in vigour of the new phytochemical EC Regulation 1107/2009 on May 14th 2011, the opportunity of approval at EU level, for new categories, are now available. Together with regular active substances, as previously managed by Dir 91/414, two new categories were introduced “Basic Substances” described via Article 23 and “Low Risk Substances” defined in Art. 22. Further specific EU-Guidance documents, regarding data requirement, are available or in progress for BCAs sub-category: microorganisms...
Tipo: Conference paper, poster, etc.
Palavras-chave: Environmental aspects; Regulation.
Ano: 2013
URL: http://orgprints.org/24914/1/Marchand_2014_%2324914_abstract.pdf

Basing Superfund Cleanups on Future Land Uses: Promising Remedy or Dubious Nostrum?
Provedor de dados: 31
Autores: Wernstedt,   Kris; Hersh,   Robert; Probst,   Katherine N.
Supporters of the effort to link cleanups at hazardous waste sites to the sites' expected land uses claim that amending language in the federal Superfund statute to allow this may yield a number of benefits. These include rationalizing the cleanup process and decreasing cleanup costs, promoting economic development in the local communities that host Superfund sites, and helping such communities exercise more control over the cleanups. However, interviews with Superfund stakeholders and a detailed case study call into question these arguments. The current role of land use in cleanup, uncertainties about whether economic development is likely at the bulk of Superfund sites, the long-run viability of institutional controls, the willingness of communities to...
Tipo: Working or Discussion Paper
Palavras-chave: Land use; Economic development; Superfund; Land Economics/Use; Q24; Q28; R52.
Ano: 1997
URL: http://purl.umn.edu/10540

Batata-doce (Ipomoea batatas (L.) Lam.).
Provedor de dados: 14
Autores: MIRANDA, J. E. C. de; FRANÇA, F. H.; CARRIJO, O. A.; SOUZA, A. F.
bitstream/item/74851/1/CNPH-DOCUMENTOS-3-BATATA-DOCE-FL-07810.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Batata-doce; Cultivar; Propagacao; Controle; Classificacao; Soqueira; Rotacao; Feeding; Fertilization; Propagation; Spacing; Diseases; Control; Pest insects; Fungus; Nematodes; Harvest.; Adubação; Alimento; Calagem; Clima; Colheita; Doença; Embalagem; Espaçamento; Época de Plantio; Fertilizante; Fungo; Inseto; Irrigação; Ipomoea Batatas; Nematóide; Praga; Solo; Sistema de Produção; Variedade; Vírus.; Crop rotation; Cropping systems; Farming systems; Fertilizers; Climate; Classification; Liming; Irrigation; Packaging; Planting date; Sweet potatoes; Soil; Varieties.
Ano: 1987
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/768390

Batch drying of potato slices: Kinetic changes of quality parameters (colour &amp; shrinkage) in response of uniformly distributed drying temperature
Provedor de dados: 111
Autores: Amjad, Waseem; Hensel, Oliver; Munir, Anjum.
Uniform quality drying throughout the drying chamber of a dryer is important for a quality oriented drying process. The final quality of dried products significantly depends upon the drying temperature. A batch type dryer was developed for uniform air distribution. ANSYS-fluent was used to analyse the temperature distribution in the dryer. To assess the effect of drying temperature homogeneity on quality parameters, color and shrinkage of potato slices (6 mm thick) at 60° C were measured. The color parameters were quantified in CIELAB color space system. The shrinkage of slices (20 mm round samples) was measured using image analysis software. The rate of color change was found uniform at all sections of drying chamber with high value of R2. The kinetics of...
Tipo: Info:eu-repo/semantics/article
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3265

Baumstreifenpflege im Obstbau
Provedor de dados: 21
To control weed competition in organic fruit orchards there are only few and expensive devices on the market. Alternatives with mulching methods or weed burners do satisfy only in specific conditions. Tillage systems that provide sufficient, reliable weed competition control over a large range of soil and site conditions and for low costs are still to be developed.    In order to ensure a sufficient supply of water and nutrients in orchards it is necessary to regulate weed growth in the in-row strips. In organic fruit growing this is achieved by keeping the soil open with special tillage equipment (very costs intensive), or by mulching with organic material, such as bark, wood shavings and straw (high costs and high deposition of potassium, which increase...
Tipo: Project description
Palavras-chave: Fruit and berries.
Ano: 2023

Bayesian Analysis of the Genetic Control of Survival in F3 Families of Common Bean
Provedor de dados: 117
Autores: Mora,Freddy; Gonçalves-Vidigal,Maria C; Santos,Alexandra I.
The objectives of this study were to examine the genetic control of survival in segregant families F3 of the common bean (Phaseolus vulgaris L.) in southern Brazil during the 2004-2005 growing season, to identify useful genotypes for the breeding program of this crop, and to determine the genetic association between survival and weight of 100 seeds (production trait; P100). A Bayesian approach was used to predict breeding values and to estimate variance components. Survival was recorded as a binary response: dead plant or live plant during harvest. The total population consisted of 11,520 individual plants. The difference in the magnitude between the best and the worst families was as high as 22%, and varied from 57 to 73%. Survival was found to be highly...
Tipo: Journal article
Palavras-chave: Genetic improvement; Breeding; Gibbs algorithm; Heritability.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392008000400003

Bayesian statistics for infection experiments
Provedor de dados: 26
Autores: Heres, L.; Engel, B.
To intervene cycles of food-borne pathogens in poultry new intervention methods need to be tested for their effectiveness. In this paper a statistical method is described that was applied to quantify the observed differences between test groups and control groups. Treated chickens and their controls were inoculated with several doses and were daily examined for the shedding of the tested pathogens. For these infection experiments with individually housed chickens and where binary data were available for each individual chicken a Bayesian analysis employing Markov Chain Monte Carlo (MCMC) was applied for the statistical analyses. The Cox’ proportional hazard reflected the typical features of the data, i. e. dependency, waitingtime structure and censoring....
Tipo: Conference proceedings
Ano: 2004
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/864

BEAK TRIMMING BY INFRARED RADIATION OF LAYERS
Provedor de dados: 89
Autores: Pelicia,K; Garcia,EA; Santos,TA; Santos,GC; Vieira Filho,JA; Silva,AP; Moreira,J; Rabello,CBV; Garcia,RG.
ABSTRACT This study aimed at evaluating beak-trimming methods and intensities on the performance, beak length and uniformity, and egg parameters of commercial layers. During the rearing period, birds were distributed in randomized blocks, with a 2x3 factorial design + two treatments, consisting of beak trimming with infrared (IR) radiation (moderate or severe); three IR intensities (low: 42 nm, intermediate: 46 nm, or high: 52 nm); and two control hot blade (HB) beak trimming treatments (moderate or severe) with eight treatments and five replicates of 21 chicks each, totaling 840 birds. During the growing phase (second experiment) the factorial design was modified to 2 x 3 x 2 + 4, comprising two IR beak-trimming intensities (moderate or severe); three IR...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative beak-trimming methods; Beak-trimming; Infrared radiation; Lohmann White layers.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100300

Bean grain hysteresis with induced mechanical damage
Provedor de dados: 91
Autores: Campos,Renata C.; Corrêa,Paulo C.; Fernandes,Lara S.; Baptestini,Fernanda M.; Costa,Cristian F.; Bustos-Vanegas,Jaime D.
ABSTRACT This study aimed to evaluate the effect of mechanical damage on the hysteresis of beans with induced mechanical damage under different conditions of temperature and relative humidity. Beans (Phaseolus vulgaris L.) harvested manually with 35% water content (w.b.) were used. Part of this product was subjected to induced mechanical damage by Stein Breakage Tester and controlled drying (damaged and control sample), for sorption processes. The sorption isotherms of water were analyzed for different temperature conditions: 20, 30, 40 and 50 oC; and relative humidity: 0.3; 0.4; 0.5; 0.7 and 0.9 (decimal). Equilibrium moisture content data were correlated with six mathematical models, and the Modified Oswin model was the one that best fitted to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mechanical damage; Equilibrium moisture content; Sorption isotherms; Mathematical modeling; Phaseolus vulgaris L.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001000930

Beauveria Bassiana Applied to Broiler Chicken Houses as Biocontrol of Alphitobius Diaperinus Panzer (Coleoptera: Tenebrionidae), an Avian Pathogens Vector
Provedor de dados: 89
Autores: Alves,LFA; Oliveira,DGP; Lambkin,T; Bonini,AK; Alves,V; Pinto,FGS; Scur,MC.
ABSTRACT Beauveria bassiana is naturally found in broiler chicken houses, and has been shown to be active against the lesser mealworm, Alphitobius diaperinus. The effectiveness of soil application of B. bassiana in emulsifiable oil-type formulation (Unioeste 4 isolate) to control the lesser mealworm in commercial poultry house was evaluated. The fungus was applied to the dirt floor of poultry house at 4.2 × 109 conidia/m2 (treated aviary) and the insect population was assessed before and 96, 146 and 216 days after application (DAA). In the control aviary, no treatment was performed to control those insects. Molecular techniques were used to confirm the presence of the fungus in dead A. diaperinus. Significant treatment effects were observed, with 56% and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Biological control; Entomopathogenic fungi.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000400459

BEAUVERIA bassiana, fungo para combater a broca-do-café.
Provedor de dados: 14
A capacidade de estar em sintonia com o avanço da ciência faz com que a Embrapa Rondônia possa contribuir para sustentabilidade da agricultura na Amazônia. Assim, de acordo com a sua missão é estratégica a sua participação na área da biotecnologia para promover o manejo da broca-do-café em consonância com os princípios da preservação do meio ambiente e a racionalidade do uso de inseticidas químicos.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Broca do café; Coffee berry borer; Biological insect control; Café; Praga de Planta; Hypothenemus Hampei; Fungo Para Controle Biológico; Beauveria Bassiana; Plant pests; Fungi.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123528

Beauveria bassiana strain ATCC 74040 (Naturalis®), a valuable tool for the control of the cherry fruit fly (Rhagoletis cerasi)
Provedor de dados: 21
Autores: Ladurner, E.; Benuzzi, M.; Fiorentini, F.; Franceschini, S.
Naturalis® is a bioinsecticide based on living conidiospores of the naturally occuring  Beauveria bassiana strain ATCC 74040. The entomopathogenic fungus acts primarily by  contact: once attached to the insect’s cuticle, the conidiospores germinate producing  penetration hyphae, which enter and proliferate inside the insect’s body. The fungus  invades and feeds on its host, causing its death due to dehydration and/or depletion of  nutrients. Several years of laboratory, semi-field and field studies showed that also Tephritid  flies (Ceratitis capitata, Rhagoletis cerasi, Bactrocera oleae) are susceptible to infection by  B. bassiana strain ATCC 74040. The results of efficacy trials conducted in 2004-05 are  reported. Naturalis was tested both alone and in...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2008
URL: http://orgprints.org/13651/1/093%2D097.pdf

Bedeutung der Stoppelbearbeitung für die Unkrautkontrolle im Ökologischen Landbau
Provedor de dados: 21
Autores: Pekrun, Carola; Claupein, Wilhelm.
In a field experiment at the Experimental Station for Organic Farming Kleinhohenheim the effect of stubble tillage has been assessed over a period of five years. Perennial weeds were effectively controlled by stubble tillage. Annual weeds were not affected when considering the above ground populations. Shallow ploughing revealed no better effect than the other implements tested. The results show that stubble tillage is very important for the control of perennial weeds in Organic Farming. A renaissance of the shallow plough appears not to be necessary.
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2005
URL: http://orgprints.org/3206/1/3206.pdf

Bedeutung von Grund- und Stoppelbearbeitung für die Kontrolle der Ackerkratzdistel (Cirsium arvense) im Ökologischen Landbau
Provedor de dados: 21
Autores: Pekrun, Carola; Häberle, Annette; Claupein, Wilhelm.
In dem vorliegenden Beitrag wird der Zusammenhang zwischen Bodenbearbeitung und der Abundanz der Ackerkratzdistel (Cirsium arvense) untersucht. Es werden hierzu Ergebnisse aus Feldversuchen vorgestellt, die auf der Versuchsstation Kleinhohenheim für Ökologischen Landbau der Universität Hohenheim sowie auf ökologisch wirtschaftenden Praxisbetrieben im Raum Rottenburg-Tübingen angelegt wurden.   Aus den Versuchen zur Stoppelbearbeitung geht hervor, dass unterlassene Stoppelbearbeitung in erheblichem Maße zur Zunahme von C. arvense beitragen kann. Der Schälpflug zeigte keine günstigere Wirkung als heute übliche Geräte. Nicht wendende Grundbodenbearbeitung führte bereits nach kurzer Versuchsdauer zu einer deutlichen Zunahme von perennierenden Unkräutern. Flach...
Tipo: Journal paper
Palavras-chave: Weed management; Soil tillage.
Ano: 2003
URL: http://orgprints.org/8992/1/Pekrun250403.pdf

Bedre økologisk kontrol og certificering i Europa
Provedor de dados: 21
Autores: Jespersen, Lizzie Melby; Sørensen, Linda S.; Rebsdorf, Simon Olling.
Poster presented at the Danish Organic Congress, 17.-18. November 2009, Odense, Denmark
Tipo: Conference paper, poster, etc.
Palavras-chave: Values; Standards and certification Consumer issues Regulation.
Ano: 2009
URL: http://orgprints.org/17073/1/17073.pdf

Bee venom treatment reduced C-reactive protein and improved follicle quality in a rat model of estradiol valerate-induced polycystic ovarian syndrome
Provedor de dados: 80
Autores: Karimzadeh,L; Nabiuni,M; Sheikholeslami,A; Irian,S.
Polycystic ovarian syndrome (PCOS) is a low grade inflammatory disease characterized by hyperandrogenemia and chronic anovulation. C-reactive protein (CRP), released by adipocytes, plays a key role in PCOS. Apis mellifera honeybee venom (HBV) contains a variety of biologically active components with various pharmaceutical properties. This study was designed to assess the possibility of HBV application as an anti-inflammatory therapeutic agent. To induce PCOS, 1 mg/100 g body weight estradiol valerate (EV) was subcutaneously (SC) injected into eight-week-old rats. After 60 days, 0.5 mg/kg HBV was administered SC for 14 consecutive days, and the results of PCOS treatment were investigated. Rats were then anesthetized with chloroform, and their ovaries and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polycystic ovarian syndrome (PCOS); Honeybee venom (HBV); C-reactive protein (CRP); Estradiol valerate (EV); Corpus luteum; Chemiluminescence immunoassay.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000400006

BEEF '97, PART III: REFERENCE OF 1997 BEEF COW-CALF PRODUCTION MANAGEMENT AND DISEASE CONTROL
Provedor de dados: 31
Autores: Dargatz,   David.
The NAHMS Beef '97 Study was designed to provide both participants and the industry with information on the nation's cow-calf population for education and research.  The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically-valid sample yielding 2,713 producers from 23 states.  The 23-state target population represented 85.7 percent of U.S. beef cows on January 1, 1997, and 77.6 percent of U.S. beef operations.  Federal and state Veterinary Medical Officers (VMO's) and Animal Health Technicians (AHT's) collected data for this report on-farm from March 3, 1996, through May 23, 1997, from 1,190 operations that had five or more beef cows on January 1, 1997.   Contact For This Paper: David Dargatz
Tipo: Report
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Breeding; SPA; Price impact; Environment; Weaning; Economics; Disease; Johne's; Marketing; Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/32744

Beeinflusst die Bewirtschaftung das Vorkommen von Jakobskreuzkraut (Senecio jacobaea)?
Provedor de dados: 21
Autores: Suter, Matthias; Siegrist-Maag, Sandra; Luescher, Andreas.
Senecio jacobaea is a poisonous weed in grasslands of various countries (e.g. Great Britain, New Zealand, Central European states), and the further spread of the species into farmland must be prevented. Due to strong restrictions of curative measures, the prevention of S. jacobaea’s spread is of primary importance for organic farming. To assess the influence of management practice and site conditions on the occurrence of S. jacobaea, we conducted an on-farm survey in the northern and central part of Switzerland. Botanical assessments were carried out on grassland plots with S. jacobaea occurrence and on neighbour plots without S. jacobaea. For these plots, we analysed the soil nutrients and the details of management practice such as type and intensity of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2007
URL: http://orgprints.org/9262/1/9262_Suter_Vortrag.pdf

Bees as entomovectors and the biological control agent Gliocladium catenulatum J1446
Provedor de dados: 21
Autores: Muljar, Riin; Mänd, Marika.
There is a need for more environmentally friendly plant protection methods, since the increasing use of agrochemicals has led to pesticide residues and resistance problems in the control of Botryrtis cinerea. An alternative to chemical spraying is to use bees as entomovectors to disperse biological control agents. Prestop Mix is a biofungicide that contains spores of the parasitic fungus Gliocladium catenulatum J1446, which has been successfully used in the control of B. cinerea. In 2010 we conducted a field experiment to study the efficiency of using bees in dispersing G. catenulatum in Estonian conditions. The study was carried out in two strawberry plantations of Tartu County, strawberry varieties were `Sonata` and `Polka`. Honey bee hives were placed...
Tipo: Conference paper, poster, etc.
Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2011
URL: http://orgprints.org/28645/1/Muljar%20ja%20M%C3%A4nd%202011a.pdf

Beet curly top resistance in germplasm from the USDA-ARS Ft. Collins program, 2014
Provedor de dados: 18
Autores: Panella, Leonard W.; Strausbaugh, C.A.
Ninety-seven sugar beet (Beta vulgaris L.) germplasm lines from the USDA-ARS Ft. Collins sugar beet program, a resistant control germplasm (1996A008), and three commercial control cultivars [SV2012RR (susceptible), Monohikari (susceptible) and HM PM90 (resistant)] were screened for response to Beet curly top virus (BCTV).   The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID.  The plots were two rows 10 ft long with 22-in row spacing and arranged in a randomized complete block design with four replicates.  Plants were inoculated at the four- to six-leaf growth stage with approximately six viruliferous beet leafhoppers per plant.  The beet leafhoppers were redistributed three times a day during the first two days and then twice...
Tipo: Article
Palavras-chave: Curly top; Sugarbeet.
Ano: 2015
URL: http://eprints.nwisrl.ars.usda.gov/1609/1/1549.pdf

Beet curly top resistance in USDA-ARS Ft. Collins Germplasm, 2011
Provedor de dados: 18
Autores: Panella, Leonard W.; Strausbaugh, C.A.
Twenty-two sugar beet (Beta vulgaris L.) lines from the USDA-ARS Ft. Collins sugar beet program were screened for resistance to Beet severe curly top virus (BSCTV) and other closely related Curtovirus species in 2011. Commercial cultivars Monohikari and HM PM90 were included as susceptible and resistant checks, respectively. The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID which has Portneuf silt loam soil and had been in barley in 2010. The field was plowed both in the fall and the spring, fertilized (80 lb N and 120 lb P2O5/A) on 20 Apr 11, sprayed with Ethotron (2 pt/A), and roller harrowed. The germplasm was planted (density of 142,560 seeds/A) on 16 May. The plots consisted of two rows 10 ft long with 22-in row...
Tipo: Article
Palavras-chave: Curly top; Resistance; Sugarbeet.
Ano: 2012
URL: http://eprints.nwisrl.ars.usda.gov/1492/1/1456.pdf

Beet curly top resistance in USDA-ARS Kimberly sugar beet germplasm, 2013
Provedor de dados: 18
Autores: Eujayl, Imad A.; Strausbaugh, C.A.
Curly top caused by Beet curly top virus is a widespread disease problem vectored by the beet leafhopper in semiarid sugar beet production areas.  Host resistance is the primary defense against this problem, but resistance in commercial cultivars is only low to intermediate.  In order to identify novel sources of curly top resistance, 14 sugar beet lines were screened in a disease nursery in 2013.  The lines were arranged in a randomized complete block design with six replications.  A curly top epiphytotic was created by releasing six viruliferous beet leafhoppers per plant at the four- to six-leaf growth stage on 27 Jun.  Foliar symptoms were evaluated on 16 Jul using a scale of 0-9 (0 = healthy and 9 = dead) in a continuous manner.  Curly top symptom...
Tipo: Article
Palavras-chave: Sugarbeet.
Ano: 2014
URL: http://eprints.nwisrl.ars.usda.gov/1552/1/1508.pdf

Beet curly top resistance in USDA-ARS Plant Introductions, 2013
Provedor de dados: 18
Autores: Strausbaugh, C.A.; Panella, Leonard W.
Curly top caused by Curtovirus species is a widespread disease problem vectored by the beet leafhopper in semiarid sugar beet production areas. Host resistance is the primary defense against this problem but resistance in commercial cultivars is only low to intermediate. In order to identify novel sources of curly top resistance, thirty Plant Introduction (PI) Lines were screened in a disease nursery in 2013. The lines were arranged in a randomized complete block design with three replications. A curly top epiphytotic was created by releasing approximately 6 viruliferous beet leafhoppers per plant at the four- to six-leaf growth stage on 27 Jun. Foliar symptoms were evaluated on 16 Jul using a scale of 0-9 (0 = healthy and 9 = dead) in a continuous manner....
Tipo: Article
Palavras-chave: Curly top; Sugarbeet.
Ano: 2014
URL: http://eprints.nwisrl.ars.usda.gov/1535/1/1492.pdf

Beet curly top resistance of released germplasm from the USDA-ARS Program at Fort Collins, CO, 2009
Provedor de dados: 18
Autores: Panella, Leonard W.; Strausbaugh, C.A.
Seventy sugar beet (Beta vulgaris L.) germplasms released from the USDA-ARS Breeding Program in Fort Collins, Colorado over the last 40 years and 27 experimental germplasm were screened for resistance to Beet severe curly top virus (BSCTV) in 2009. The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID which had been in beans in 2008. The field was plowed in the fall, fertilized (75 lb N/A and 75 lb P2O5/A) on 22 Apr 09, sprayed with Ethotron (2 pt/A), and roller harrowed. The germplasm was planted (density of about 143,000 seeds/A) on 18 May. The plots were two rows 10 ft long with 22-in row spacing and arranged in a randomized complete block design with three replications. A resistant breeding line from Betaseed, Inc., G6040,...
Tipo: Article
Palavras-chave: Curly top; Sugarbeet.
Ano: 2010
URL: http://eprints.nwisrl.ars.usda.gov/1496/1/1460.pdf

Behavior of a portable solar dryer for pineapple fiber
Provedor de dados: 64
Autores: Moya,Róger; Solano,Marco.
In Costa Rica, there has been a growing interest to use pineapple fiber from plant, for which current processes need to be improved or new processes need to be developed, with emphasis on drying methods. This work presents the design and evaluation of the behavior of a prototype portable solar dryer in four sites of Costa Rica. The design describes the main parts of the dryer, as well as how they were constructed. The behavior was evaluated according to temperature and relative humidity inside e outside the chamber, and the influence of direct and indirect solar radiation. In order to achieve improved dryer efficiency, a dehumidifier was used to control relative humidity, and a heating system was implemented during the hours of low temperature, low solar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Air drying; Relative humidity; Moisture content; Temperature; Solar radiation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000600009

Behavior of Bradyrhizobium japonicum strains under different herbicide concentrations
Provedor de dados: 87
Autores: Arruda,J.S.; Lopes,N.F.; Moura,A.B.
The Bradyrhizobium japonicun strains SEMIA 5073, SEMIA 5074, SEMIA 5079 and SEMIA 5080 were grown in vitro using Vincent medium combined with different rates of the herbicides imazaquin (0, 0.04, 0.12, 0.24, 0.36 mg a.i. g-1), clomazone (0, 0.4, 0.8, 1.6 and 3.2 mg a.i. g-1) and sulfentrazone (0, 0.2, 0.4, 0.8 and 1.6 mg a.i. g-1) to evaluate the strains tolerance to herbicides. The three herbicides drastically inhibited all the rhizobium strains tested, showing a significant decrease of the CFU number as a function of herbicide rates. The rhizobium strains presented a differentiated tolerance to the herbicides. The herbicide rates that reduced 50% (I50) of the growth or survival of the rhizobium strains were below the recommended sprayed rates for weed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rhizobium; Clomazone; Imazaquin; Sulfentrazone.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582001000100013

Behavior of genetic (co)variance components in populations simulated from non-additive genetic models of dominance and overdominance
Provedor de dados: 96
Autores: Cunha,Elizângela Emídio; Euclydes,Ricardo Frederico; Lopes,Paulo Sávio; Torres,Robledo de Almeida; Carneiro,Paulo Luiz Souza.
The aim of this work was to investigate the short-term behavior of the genetic variability of quantitative traits simulated from models with additive and non-additive gene action in control and phenotypic selection populations. Both traits, one with low (h² = 0.10) and the other with high (h² = 0.60) heritability, were controlled by 600 biallelic loci. From a standard genome, it was obtained six genetic models which included the following: only the additive gene effects; complete and positive dominance for 25, 50, 75 and 100% of the loci; and positive overdominance for 50% of the loci. In the models with dominance deviation, the additive allelic effects were also included for 100% of the loci. Genetic variability was quantified from generation to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Closed population; Computer simulation; Dominance deviation; Genetic variability; Intralocus interaction.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000900013

Behavior of mesenchymal stem cells stained with 4&amp;', 6-diamidino-2-phenylindole dihydrochloride (DAPI) in osteogenic and non osteogenic cultures
Provedor de dados: 47
Autores: Ocarino,N.M.; Bozzi,A.; Pereira,R.D.O.; Breyner,N.M.; Silva,V.L.; Castanheira,P.; Goes,A.M.; Serakides,R.
4&amp;', 6-diamidino-2-phenylindole dihydrochloride (DAPI) is a DNA dye widely used to mark and trace stem cells in therapy. We here studied the effect of DAPI staining on the behavior of mesenchymal stem cells cultured in either a control, non-osteogenic medium or in an osteogenic differentiation medium. In the control medium, the number of stem cells/field, as well as the number of fluorescent cells/field increased up to the sixth day in both control and DAPI-treated cultures. Afterwards, both the number of fluorescent cells and their fluorescence intensity decreased. Control cells were fusiform and with some long extensions that apparently linked them to neighboring cells, while DAPI-treated cells were mostly round cells with fine and short extensions....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bone marrow; Cell cultures; Rat; Osteogenic differentiation.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452008000200003

Behavior of Salmonella heidelberg and Salmonella enteritidis strains following broiler chick inoculation: evaluation of cecal morphometry, liver and cecum bacterial counts and fecal excretion patterns
Provedor de dados: 58
Autores: Borsoi,Anderlise; Santos,Luciana Ruschel do; Rodrigues,Laura Beatriz; Moraes,Hamilton Luiz de Souza; Salle,Carlos Tadeu Pippi; Nascimento,Vladimir Pinheiro do.
Over the years, Salmonella Heidelberg (SH) has gained prominence in North America poultry production and in the poultry production of other countries. Salmonella Heidelberg has been isolated and reported from poultry and poultry products in Brazil since 1962, whereas Salmonella Enteritidis (SE) has only emerged as a serious problem in poultry and public health since 1993. These strains of Salmonella can cause intestinal problems in newly hatched chicks, and infection may persist until adulthood. Upon slaughter of chickens, Salmonella can contaminate carcasses, a condition that poses a threat to human health. The aim of this study was to compare the fecal excretion of Salmonella Enteritidis and Salmonella Heidelberg in newly hatched chicks (orally...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella Heidelberg; Salmonella Enteritidis; Fecal Excretion; Villus/crypt ratio; Broiler.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100034

Behavior of Staphylococcus aureus and autochthone microbiota in fresh sausages added of sodium nitrite and stored under refrigeration
Provedor de dados: 65
Autores: Correia,Lucyanne Maria Moraes; Pereira,Juliano Gonçalves; Pinto,José Paes de Almeida Nogueira; Barcellos,Vinicius Cunha; Bersot,Luciano dos Santos.
Fresh sausages are cured meat products that may be contaminated with Staphylococcus aureus during the manufacturing procedure, which is frequently related with inadequate handling practices. The use of nitrite in meat products has proven efficacy against Clostridium botulinum, and studies indicate that bactericidal action against S. aureus depends on factors that are intrinsic and extrinsic to the product. The objective of the present study was to evaluate the effect of nitrite concentration, and pH on S. aureus and psychrotrophic autochthone microbiota in fresh sausages stored at different times and temperatures. Fresh sausage were produced at nitrite concentrations 50, 150 and 200ppm and contaminated with S. aureus. The sausages were storage at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fresh sausage; Nitrite; Psychrotrophic; S. aureus; Temperature.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014001001880

Behavior of α-tomatine and tomatidine against several genera of trypanosomatids from insects and plants and Trypanosoma cruzi
Provedor de dados: 3
Autores: Evangelista, Adriane Feijó; Kavati, Erica Akemi; Jankevicius, José Vitor; Menolli, Rafael Andrade.
 Glycoalkaloids are important secondary metabolites accumulated by plants as protection against pathogens. One of them, α-tomatine, is found in high concentrations in green tomato fruits, while in the ripe fruits, its aglycone form, tomatidine, does not present a protective effect, and it is usual to find parasites of tomatoes like Phytomonas serpens in these ripe fruits. To investigate the sensitivity of trypanosomatids to the action of α-tomatine, we used logarithmic growth phase culture of 20 trypanosomatids from insects and plants and Trypanosoma cruzi. The lethal dose 50% (LD50) was determined by mixing 107 cells of the different isolates with α-tomatine at concentrations ranging from 10-3 to 10-8 M for 30 min at room temperature. The same tests...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.13.01.00-0 tomato alkaloids; Trypanocidal activity; Phytomonas; Leptomonas; Crithidia; Herpetomonas. Protozoologia.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/41853

Behavior patterns of cows with Charolais or Nellore breed predominance fed diets with plant extract or monensin sodium
Provedor de dados: 96
Autores: Segabinazzi,Luciane Rumpel; Viégas,Julio; Freitas,Leandro da Silva; Brondani,Ivan Luiz; Argenta,Flânia Mônego; Binotto,Juliano.
The objective of this research was to study the ingestive behavior of feedlot cows fed additives based on plant extracts or monensin sodium. Twenty-four Charolais and Nellore crossbred cows with age and average initial weight of 7 years and 423 kg, respectively, were used. The experimental diets were plant extracts: basal diet + 5 g/animal/day of a natural additive composed of 750 mg of essential oil of thyme (Thymus vulgaris), 150 mg of garlic (Allium sativum), 250 mg of rosemary extract (Rosmarimus officinalis), 250 mg of canola oil (Brassica napus), 250 mg extract of quillaja (Quillaja saponaria), and 3350 mg of corn starch; sodium monensin: basal diet + 300 mg/monensin/animal/day; and control: basal diet without additive. The basal diet contained...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chewing; Feedlot; Growth promoter; Idle; Rumination.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001200044

Behavioral and physiological methods for early quantitative assessment of spinal cord injury and prognosis in rats
Provedor de dados: 56
Autores: Giglio,C.A.; Defino,H.L.A.; da-Silva,C.A.; de-Souza,A.S.; Del Bel,E.A.
Methods for reliable evaluation of spinal cord (SC) injury in rats at short periods (2 and 24 h) after lesion were tested to characterize the mechanisms implicated in primary SC damage. We measured the physiological changes occurring after several procedures for producing SC injury, with particular emphasis on sensorimotor functions. Segmental and suprasegmental reflexes were tested in 39 male Wistar rats weighing 250-300 g divided into three control groups that were subjected to a) anesthesia, b) dissection of soft prevertebral tissue, and c) laminectomy of the vertebral segments between T10 and L1. In the lesion group the SC was completely transected, hemisected or subjected to vertebral compression. All animals were evaluated 2 and 24 h after the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trauma; Spinal cord injury; Experimental models; Sensorial test; Motor performance test.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006001200013

Behavioral characteristics of the offspring of adolescent rats
Provedor de dados: 56
Autores: Zemunik,T.; Peruzovic,M.; Capkun,V.; Milkovic,K.
The aim of this study was to test the hypothesis that, during adulthood, the offspring of adolescent rats differ in emotionality, learning and memory from the offspring of adult rats. The behavior of the offspring of adolescent (age, 50-55 days) and adult rats (age, 90-95 days) was tested in the open field, activity cage, and passive and active avoidance apparatus. The latencies during training and testing in the passive avoidance apparatus of the offspring of adolescent parents were shorter than the latencies of control offspring (P&lt;0.001 on both training and testing days). Offspring of adolescent parents showed shorter latency time in acquisition trials during active avoidance testing compared to control offspring (P&lt;0.001). They also showed a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adolescence; Pregnancy; Behavior; Learning and memory; Emotionality.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000400008

Behavioral correlates of the activity of serotonergic and non-serotonergic neurons in caudal raphe nuclei
Provedor de dados: 56
Autores: Ribeiro-do-Valle,L.E.; Lucena,R.L.B.G.
We investigated the behavioral correlates of the activity of serotonergic and non-serotonergic neurons in the nucleus raphe pallidus (NRP) and nucleus raphe obscurus (NRO) of unanesthetized and unrestrained cats. The animals were implanted with electrodes for recording single unit activity, parietal oscillographic activity, and splenius, digastric and masseter electromyographic activities. They were tested along the waking-sleep cycle, during sensory stimulation and during drinking behavior. The discharge of the serotonergic neurons decreased progressively from quiet waking to slow wave sleep and to fast wave sleep. Ten different patterns of relative discharge across the three states were observed for the non-serotonergic neurons. Several non-serotonergic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nucleus raphe pallidus; Nucleus raphe obscurus; Waking-sleep cycle; Respiration; Startle behavior; Drinking behavior.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000700012

Behavioral deficits in sepsis-surviving rats induced by cecal ligation and perforation
Provedor de dados: 56
Autores: Barichello,T.; Martins,M.R.; Reinke,A.; Constantino,L.S.; Machado,R.A.; Valvassori,S.S.; Moreira,J.C.F.; Quevedo,J.; Dal-Pizzol,F.
Sepsis and its complications are the leading causes of mortality in intensive care units, accounting for 10-50% of deaths. Intensive care unit survivors present long-term cognitive impairment, including alterations in memory, attention, concentration, and/or global loss of cognitive function. In the present study, we investigated behavioral alterations in sepsis-surviving rats. One hundred and ten male Wistar rats (3-4 months, 250-300 g) were submitted to cecal ligation and puncture (CLP), and 44 were submitted to sham operation. Forty-four rats (40%) survived after CLP, and all sham-operated animals survived and were used as control. Twenty animals of each group were used in the object recognition task (10 in short-term memory and 10 in long-term memory),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sepsis survivors; Recognition memory; Plus-maze test; Forced swimming test; Cecal ligation and puncture; Cognitive impairment.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000600013

Behavioral effects of endogenous or exogenous estradiol and progesterone on cocaine sensitization in female rats
Provedor de dados: 56
Autores: Souza,M.F.; Couto-Pereira,N.S.; Freese,L.; Costa,P.A.; Caletti,G.; Bisognin,K.M.; Nin,M.S.; Gomez,R.; Barros,H.M.T.
Cocaine sensitization is a marker for some facets of addiction, is greater in female rats, and may be influenced by their sex hormones. We compared the modulatory effects of endogenous or exogenous estradiol and progesterone on cocaine-induced behavioral sensitization in 106 female rats. Ovariectomized female rats received progesterone (0.5 mg/mL), estradiol (0.05 mg/mL), progesterone plus estradiol, or the oil vehicle. Sham-operated control females received oil. Control and acute subgroups received injections of saline, while the repeated group received cocaine (15 mg/kg, ip) for 8 days. After 10 days, the acute and repeated groups received a challenge dose of cocaine, after which locomotion and stereotypy were monitored. The estrous cycle phase was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cocaine; Locomotor activity; Female rats; Estradiol; Progesterone; Stereotypic activity.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000600505

Behavioral experiments in a wild passerine cause short-term reductions in parental provisioning and nestling mass
Provedor de dados: 97
Autores: VAN DONGEN,WOUTER F.D; LAZZONI,ILENIA; VÁSQUEZ,RODRIGO A.
Research on wild animals often involves the capture and temporary removal of individuals from their territory. Although the acute effects of such procedures are well understood in terms of stress hormone profiles, their effect on the behaviour of captured individuals after release is poorly known. Additionally, for socially-monogamous individuals captured whilst breeding, little is known regarding whether the remaining individual compensates for the temporary loss of its partner and whether offspring condition or survival ultimately decreases due to any reductions in parental provisioning. We investigated the influence of field-based experiments requiring temporary adult removal on adult provisioning behaviour and nestling mass in the thorn-tailed rayadito...
Tipo: Journal article
Palavras-chave: Aphrastura spinicauda; Nestling condition; Parental provisioning; Temporary adult removal; Thorn-tailed rayadito.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2009000200005

Behavioral profiles displayed by rats in an elevated asymmetric plus-maze: effects of diazepam
Provedor de dados: 56
Autores: Ruarte,M.B.; Alvarez,E.O.
When rats are exposed to unknown environments where novelty and fear-inducing characteristics are present (conflictive environments), some specific behaviors are induced and exploration is apparently modulated by fear. In our laboratory, a new type of plus-maze was designed as a model of conflictive exploration. The maze is composed of four arms with different geometrical characteristics, differing from each other by the presence or absence of walls. The degree of asymmetry was as follows: NW, no wall arm; SW, a single high wall present; HL, a low and a high wall present, and HH, two high walls present. The four arms were arranged at 90o angles and the apparatus was called the elevated asymmetric plus-maze (APM). The purpose of the present study was to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emotionality; Anxiety; Motivation; Elevated asymmetric plus-maze; Benzodiazepine; Conflictive exploration.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000100015

Behavioral response of Biomphalaria glabrataexposed to a sublethal concentration of Euphorbia miliivar. hislopii latex
Provedor de dados: 42
Autores: ALBERTO-SILVA,ANNA CARLA; CUNHA,RODOLFO A.; COSTA,VALDIR A. DA; SANTOS,EVERTON GUSTAVO N. DOS; VASCONCELLOS,MAURÍCIO C. DE; MELLO-SILVA,CLÉLIA CHRISTINA; SANTOS,CLÁUDIA P.
Abstract  The Euphobia milii var. hislopii latex has been tested in the control of schistosomiasis but its action in the locomotor activity of Biomphalaria glabrata is unknown. The objective of this work was to study the locomotor and reproductive behaviors of B. glabrata exposed to E. milii var. hislopii latex. For this, 96 snails were individually exposed to the latex (LC50 - 0.53 mg / L) for 24 hours. The specimens were submitted to biomonitoring for image analysis to record the locomotor parameters at different times: before exposure (control), one day post exposure (group 1 d-p-e) and 30 days post exposure (group 30 d-p-e). The reproductive parameters were recorded weekly for 10 weeks. All locomotor activities of group 1 d-p-e decreased significantly....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Behavior; Biomonitoring; Biomphalaria glabrata; Control of schistosomiasis; Euphorbia milii var.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100716

Behaviors associated with cows more prone to produce milk with reduced stability to ethanol test due to feeding restriction
Provedor de dados: 65
Autores: Stumpf,Marcelo Tempel; Fischer,Vivian; Kolling,Giovani Jacob; Silva,Alessandra Ventura da; Ribeiro,Maria Edi Rocha; Santos,Carolina da Silva dos.
ABSTRACT: The experiment was carried out to identify changes in the behaviorr of lactating cows induced by severe feeding restriction and further refeeding that could serve as facilitators for the visual identification of cows more prone to produce milk with reduced stability. Twelve cows were separated into two groups: Control: full diet supply; Restriction: 50% of the full diet. Feed restriction lasted seven days (Period 1), with posterior supply of full diet for seven days (Period 2) for all treatments. Behavior was observed on the first and fifth days in each period from 08h40 to 19h00. Ingestive and social behavior were monitored. Cortisol assessed stress levels. Analysis of variance and multifactorial statistical analyzes were performed. Adequate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bos taurus taurus; Feeding restriction; Ingestive behaviour; Milk stability; Social behaviour.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901662

Behaviour of confined sheep fed with different concentrate sources
Provedor de dados: 45
Autores: Minervino,A.H.H.; Kaminishikawahara,C.M.; Soares,F.B.; Araújo,C.A.S.C.; Reis,L.F.; Rodrigues,F.A.M.L.; Vechiato,T.A.F.; Ferreira,R.N.F.; Barrêto-Júnior,R.A.; Mori,C.S.; Ortolani,E.L.
In this study we examined the effects of different feed concentrates on sheep behaviour. Our hypothesis was that citric pulp would stimulate rumination and be capable of replacing other concentrates traditionally used for feeding in confinement, to reduce the risk of urolithiasis. Ten adult Santa Inês sheep were distributed in a Latin square with five different diets, one control diet with 80% hay and 20% commercial feed and four diets containing 30% coast-cross hay and 70% of the following concentrates: pelleted citrus pulp, citrus pulp meal, cornmeal or wheat bran. After 21d of adaptation to each one of the five diets, the sheep were visually monitored for 24 h at 3 min intervals to record the time spent ruminating, time spent eating and time spent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed behaviour; Citric pulp; Rumination; Urolithiasis; Cornmeal.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000401163

Behavioural responses of captive-born greater rheas Rhea americana Linnaeus (Rheiformes, Rheidae) submitted to antipredator training
Provedor de dados: 104
Autores: Azevedo,Cristiano S. de; Young,Robert J.
Human activities have been diminishing greater rhea Rhea americana (Linnaeus, 1758) populations throughout their natural distribution. The reintroductions of captive-born greater rheas have been tried but without success; since the individuals reintroduced were killed by predators. Captive-born animals that have been isolated from predators for many generations can lose their predator recognition abilities. To enhance the survival rates of the reintroduced animals, researchers are now using antipredator training techniques. We studied the response of 15 zoo-borne greater rheas to antipredator training. The animals were divided into three groups: two test groups and one control group. We ran 15 antipredator tests and four control testes with each group....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aves; Classical conditioning; Conservation; Reintroduction; Survival.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000100010

Beheersing bonenvlieg
Provedor de dados: 21
Autores: van den Broek, Rob.
De bonenvlieg kan op biologische percelen grote schade aanrichten in gewassen als spinazie, pompoen en bonen. Kiemplanten lijden soms zo erg onder vraat, dat er opnieuw gezaaid moet worden. De bonenvlieg beschadigt zaden en/of wortels van vele soorten planten en gewassen. Vooral de eerste jaren na invoering van een teeltsysteem met niet-kerende grondbewerking lijken de kansen op  aantasting toe te nemen.  In dit rapport de onderzoeksresultaten naar beheersing van de bonenvlieg.
Tipo: Report
Palavras-chave: Systems research and participatory research Crop health; Quality; Protection Netherlands.
Ano: 2011
URL: http://orgprints.org/18959/1/Beheersing_bonenvlieg.pdf

Beheersing Wortelvlieg
Provedor de dados: 21
Autores: van den Broek, Rob; van Roozen, Klaas.
De larve van de wortelvlieg, Psila rosae, kan in een aantal schermbloemige gewassen grote schade veroorzaken. Het insect komt met name in de gematigde streken van het noordelijk halfrond voor, maar ook in sommige subtropische  streken. Overal in Nederland waar peen wordt geteeld, komt aantasting voor. In Nederland lijken de biologische telers goed met het probleem wortelvlieg om te gaan; het aantal meldingen van schade en afkeuring valt mee. Met slimme  teeltmaatregelen zijn de problemen beheersbaar en dankzij inzicht in de biologie en levenscyclus van de wortelvlieg kunnen passende maatregelen de schade beperken. In dit BioKennisbericht een overzicht en tips.
Tipo: Other
Palavras-chave: Vegetables Crop health; Quality; Protection Root crops.
Ano: 2011
URL: http://orgprints.org/19245/1/173014.pdf

Beisaat von Zwischenfrüchten als Möglichkeit zur Reduzierung der N-Auswaschung in Wintergetreide?
Provedor de dados: 21
Autores: Loges, Dr. Ralf; Mauscherning, Inken; Taube, Prof. Dr. Friedhelm.
In a field experiment the potential of mixtures of winter cereals and catch crops to reduce nitrate leaching was investigated. Pure winter wheat showed the highest N-losses (56 kg N ha-1). Compared to a control without a catch crop, winter rye and oilseed radish grown in pure stand or in mixture with a winter cereal reduced nitrate-leaching by 30 to 80 %. However, common vetch had a significant lower potential compared to the tested non-legume catch crops. Further investigations are needed to optimize the system with special regards to the concurrence between cereal and catch crop in autumn and in early spring.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions; Air and water emissions.
Ano: 2005
URL: http://orgprints.org/3794/1/3794.pdf

Beitrag einer termingerecht durchgeführten Kainit-Düngung zur  Beikrautregulierung in Winterweizen
Provedor de dados: 21
Autores: Loges, Dr Ralf; Häussler, M. Sc Robert; Taube, Prof. Dr. Friedhelm.
Due to etching effects on broad leafed weeds, fine ground kainite was used for weed  control before synthetic herbicides have become common practice in conventional  farming. According to the organic standards kainite can be used as potassium  fertiliser. The present study investigates optimal growing stages for application in  organic winter wheat and the range of effectiveness. Kainite was applied at a rate of  800 kg per hectare alternatively at EC 29 and EC 30 under the conditions of morning  dew on days with high sunshine duration. At both growing stages kainite application  reduced the population of hairy vetch, chamomile, cornflower, field pansy, winter rape,  common chickweed and persian speedwell. Application at early growing stages led to  a...
Tipo: Conference paper, poster, etc.
Palavras-chave: Weed management.
Ano: 2009
URL: http://orgprints.org/14538/1/Loges_14538.pdf

Bekæmpelse af æbleskurv i økologisk frugtavl - kan planteekstrakter, biologisk bekæmpelse og induceret resistens anvendes?
Provedor de dados: 21
Autores: Hockenhull, John; Bengtsson, Marianne; Jørgensen, Hans J.Lyngs; Pedersen, Hanne Lindhard; Nørbæk, Rikke; Paaske, Klaus.
Der er et stort behov for at finde alternative muligheder til at bekæmpe æbleskurv i økologisk æbledyrkning, da de fleste tilgængelige metoder, inklusive sprøjtning med svovl, kun har ringe effekt. I det danske samarbejdsprojekt ”StopScab” mellem Den Kgl. Veterinær- og Landbohøjskole og Danmarks JordbrugsForskning undersøges planteekstrakter, essentielle olier, biologiske bekæmpelsesorganismer og midler, der aktiverer plantens egne resistensmekanismer (induceret resistens) for deres effektivitet mod æbleskurv.
Tipo: Web product
Palavras-chave: Fruit and berries.
Ano: 2003
URL: http://orgprints.org/1516/1/skurv.pdf

Bekæmpelse af æbleskurv ved brug af plantens egne forsvarsmekanismer
Provedor de dados: 21
Autores: Jørgensen, Hans J. Lyngs; Bengtsson, Marianne; Wulff, Ednar; Hockenhull, John.
En oplagt mulighed for at bekæmpe æbleskurv, forårsaget af Venturia inaequalis, er at udnytte plantens egne evner til at forsvare sig gennem induceret resistens. Indledende forsøg med induceret resistens mod æbleskurv er sat i gang i projektet StopScab, som er et samarbejde mellem KVl og DJF. I artiklen beskrives kort hvad induceret resistens er, og hvad det kan anvendes til.
Tipo: Journal paper
Palavras-chave: Fruit and berries.
Ano: 2004
URL: http://orgprints.org/4237/1/4237.pdf

Bekämpfung der Blutlaus durch Freilassung von Blutlauszehrwespen aus Massenzucht
Provedor de dados: 21
Ziel des Projektes war die Erarbeitung eines Verfahrens zur Regulierung der Blutlaus (Eriosoma lanigerum HAUSM.), eines wirtschaftlich bedeutenden Schädlings im ökologischen Obstbau, gegen den es momentan keinerlei wirksame Bekämpfungsmöglichkeiten gibt. Hierzu wurde versucht, aus der Erfahrung vorangegangener Versuchsergebnisse ein Verfahren zur Bekämpfung der Blutlaus durch den Einsatz von Blutlauszehrwespen (Aphelinus mali L.) aus einer Nützlingszucht zu entwickeln und zur Praxisreife zu bringen. Die Zehrwespe ist ein natürlich vorkommender Gegenspieler, dem es aufgrund mangelnder Synchronisation zwischen Schädling und Nützling nicht rechtzeitig gelingt, den Schaden durch die Blutlaus zu verhindern.  Schwerpunkt des Projektes war die Entwicklung und...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2023

Bekämpfung der Blutlaus durch Freilassung von Blutlauszehrwespen aus Massenzucht
Provedor de dados: 21
Autores: Zimmer, J.; Hetebrügge, K.
Ziel des Projektes war die Erarbeitung eines Verfahrens zur Regulierung der Blutlaus (Eriosoma lanigerum), eines wirtschaftlich bedeutenden Schädlings im ökologischen Obstbau, gegen den es momentan keinerlei wirksame Bekämpfungsmöglichkeiten gibt. Hierzu wurde versucht, aus der Erfahrung vorangegangener Versuchsergebnisse ein Verfahren zur Bekämpfung der Blutlaus durch den Einsatz von Blutlauszehrwespen (Aphelinus mali) aus einer Nützlingszucht zu entwickeln und zur Praxisreife zu bringen. Die Zehrwespe ist ein natürlich vorkommender Gegenspieler, dem es aufgrund mangelnder Synchronisation zwischen Schädling und Nützling nicht rechtzeitig gelingt, den Schaden durch die Blutlaus zu verhindern. 2004 konnten mit dem Einsatz von parasitierten Blutlausmumien...
Tipo: Report
Palavras-chave: Fruit and berries Crop health; Quality; Protection.
Ano: 2006
URL: http://orgprints.org/33923/1/33923-03OE542_1-dlr_rlp-zimmer-2006-blutlauszehrwespen.pdf

Bekämpfung der Blutlaus Eriosoma lanigerum HAUSM. in ökologischen Obstanlagen durch Etablierung von Ohrwürmern Forficula auricularia L. und Bewertung unterstützender Bekämpfungsverfahren
Provedor de dados: 21
Ziel des Projektes ist es, auf der Basis erster Versuchsergebnisse eine betriebliche Behandlungsstrategie zur Bekämpfung der Blutlaus durch den gezielten Ohrwurmeinsatz zu entwickeln und anschließend in der obstbaulichen Praxis zu etablieren.     Die Blutlaus (Eriosoma lanigerum) gilt seit Jahren als Problemschädling im ökologischen Obstanbau und kann auf Grund mangelnder Regulierungsmöglichkeiten zu hohen Ertragseinbußen führen. Es gibt eine Reihe von Nützlingen, die als natürliche Gegenspieler auftreten. Der gemeine Ohrwurm (Forficula auricularia) ist ein natürlich vorkommender, in Mitteleuropa beheimateter Allesfresser, der pflanzliche und tierische Nahrung aufnimmt und bis zu 7 Jahre alt werden kann. Die Fraßleistung der adulten nachtaktiven Tiere...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2023
URL: http://orgprints.org/15174/1/Projektantrag_Blutlaus_06OE325.pdf

Bekämpfung der Blutlaus (Eriosoma lanigerum Hausm.) in ökologischen Obstanlagen durch Etablierung von Ohrwürmern (Forficula auricularia L.) und Bewertung unterstützender Bekämpfungsverfahren
Provedor de dados: 21
Autores: Toups, Ina; Zimmer, Jürgen; Trautmann, Martin; Weinmann, Elke; Beer, Margarita; Buchleither, Sascha; Herz, Annette; Koch, Ute.
Das Forschungsprojekt „Bekämpfung der Blutlaus (Eriosoma lanigerum Hausm.) in ökologischen Obstanlagen durch Etablierung von Ohrwürmern (Forficula auricularia L.) und Bewertung unterstützender Bekämpfungsverfahren“ lief in Zusammenarbeit verschiedener Forschungs- und Beratungseinrichtungen von April 2007 bis Dezember 2009. Ziel des Projektes war es, auf Basis von Versuchsergebnissen eine betriebliche Behandlungsstrategie zur Bekämpfung der Blutlaus durch den gezielten Ohrwurmeinsatz und Ölbehandlungen zu entwickeln.  Der Einfluss der Ohrwürmer erwies sich als schwer nachweisbar. Dies kann mehrere Gründe haben. Zum einen verteilen sich die Ohrwürmer über die Anlage, so dass ein Effekt in den einzelnen Varianten dadurch ausgeglichen wird, dass die Ohrwürmer...
Tipo: Report
Palavras-chave: Fruit and berries Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/18163/1/18163%2D06OE325%2Ddlr%2Dzimmer%2D2009%2Dblutlausbekaempfung.pdf

Bekämpfung des Schneeschimmels (Microdochium majus) bei Winterweizen mit Naturstoffen – vom Labor ins Feld
Provedor de dados: 21
Autores: Vogelgsang, Susanne; Bänziger, Irene; Krebs, Heinz; Legro, Robert; Sanchez-Sava, Victor; Forrer, Hans-Rudolf.
The fungal pathogen Microdochium majus, causing snow mould, seedling blight or foot rot results in severe yield losses in small grain cereals. There are few options to control this pathogen in organic production. In this study, aqueous extracts and powders from the botanicals chamomile, meadowsweet, thyme and Chinese galls were tested in vitro against M. majus conidia germination and mycelial growth. Subsequently, powders of three chosen botanicals were tested for their effect on emergence of M. majus infected wheat seedlings from soil in climate chambers. Furthermore, seed treatments with warm water, a commercialised bacterial product and one chosen botanical were tested in a field experiment throughout three consecutive years. Of the botanicals tested,...
Tipo: Conference paper, poster, etc.
Palavras-chave: Cereals; Pulses and oilseeds Crop health; Quality; Protection.
Ano: 2013
URL: http://orgprints.org/21458/1/21458_Vogelgsang.pdf

Bekämpfung von Fusarien mit antifungalen Pflanzenprodukten  und deren Effekte auf den Mykotoxin-Gehalt von Weizen
Provedor de dados: 21
Autores: Forrer, Dr. Hans-Rudolf; Hecker, Andreas; Jenny, Evelyne; Schwab, Fabienne; Wettstein, Felix; Vogelgsang, Dr. Susanne.
Fusarium graminearum (FG) is the most prevalent Fusarium Head Blight (FHB)  fungus in Switzerland. In conventional agriculture, fungicides are used to reduce the  risk of FHB infection and mycotoxin contamination of wheat. As an alternative for  organic wheat production, we examined plant-based products that showed antifungal  effects from our previous late blight field trials. In bioassays, the effect of these  antifungal plant preparations (APP) was screened against FG. In 2006 and 2008, the  most active APP, Rheum palmatum, Frangula alnus and preparations of Galla  chinensis as well as a plant substance (PSX), were used as FHB control agents in  field trials with artificial FG infections. In both years, FG incidence and deoxynivalenol  content were...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/14704/1/Forrer_14704.pdf

Bekämpfung von Microdochium nivale (Schneeschimmel) auf Weizen mit Präparaten auf Pflanzenbasis
Provedor de dados: 21
Autores: Vogelgsang, Dr. Susanne; Bänziger, Irene; Krebs, Heinz; Legro, Robert; Forrer, Dr. Hans-Rudolf.
Snow mold, caused by the fungal pathogen Microdochium nivale, is an important  seed-borne disease of various cereals and fodder plants, leading to reduced stands  after emergence. No agricultural measures are known to prevent snow mold, hence,  direct control measures are needed. For organic agriculture, seed dressing with plantbased  products could be an alternative. In contrast to spray treatments onto the crop,  the formulation and application of plant preparations onto seeds represents a greater  challenge in terms of adhesion, persistence, and lasting efficacy. In the current study,  three plant-based powders applied with two different seed coating materials were  tested for their efficacy against MN of wheat. Both adjuvants demonstrated equally...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/14852/1/Vogelgsang_14852.pdf

Bekämpfungserfolg bei mechanischer Unkrautregulation
Provedor de dados: 21
Autores: Laber, Hermann; Stützel, Hartmut.
Zwar sind Hacken und Striegeln altherbrachte Verfahren; doch wie hoch ist ihr Bekämpfungserfolg in der Praxis und wie läßt er sich, insbesondere im Reihenbereich, steigern? Mit welchen Nebenwirkungen auf die Kulturen ist zu rechnen?  Die Untersuchungen gliederten sich in zweijährige Erhebungsuntersuchungen auf ökologisch bewirtschafteten Möhren- und Zwiebelschlägen in Praxisbetrieben nördlich von Hannover sowie Versuche auf den Flächen des Instituts für Gemüse- und Obstbau der Universität Hannover.  Insgesamt konnten in den beiden Versuchsjahren 1995 und 1996 Daten von 5 Möhren- und 5 Zwiebelschlägen in landwirtschaftlichen Fruchtfolgen dreier Praxisbetriebe erfaßt werden. Bei den Betriebsleitern, die alle Hackmaßnahmen selbst durchführten, handelte es...
Tipo: Journal paper
Palavras-chave: Vegetables; Weed management.
Ano: 1998
URL: http://orgprints.org/1192/1/1192%2Dlaber%2Dh%2Det%2Dal%2D1998%2Dbekaempfungserfolg.pdf

Bekämpfungsstrategien für den Wurzelgallennematoden Meloidogyne hapla im Ökologischen Landbau
Provedor de dados: 21
Autores: Hallmann, Johannes; Rau, Florian; Puffert, Markus.
The root-knot nematode Meloidogyne hapla is a major pest in organic farming causing severe damage especially on vegetables. Common practices such as high cropping frequencies of legumes and low frequencies of cereals in association with unsatisfactory weed control are assumed to be major factors for nematode build-up. Due to the broad host spectrum of M. hapla strategies solely based on crop rotation are often not sufficient in controlling the nematode. A series of field experiments was conducted to develop more efficient control strategies. Based on the results a recommendation for reducing high nematode densities was developed which is build on black fallow throughout the main vegetation period buffered by additional measures such as previously growth of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2007
URL: http://orgprints.org/9488/1/9488_Hallmann_Poster.pdf

Bekämpfungsstrategien für pflanzenparasitäre Nematoden im ökologischen Landbau
Provedor de dados: 21
Autores: Hallmann, Johannes; Klinger, Sonja; Rau, Florian.
Plant parasitic nematodes are an increasing threat to organic farming in Germany. Especially taxa with broad host spectra and high multiplication rates such as Meloidogyne hapla and Pratylenchus spp. can cause severe damage up to total loss of the crop. The control of these nematodes is extremely difficult. Resistant cultivars are not available and only few non-host crops are known. Weed control is another important issue as most weeds are excellent hosts. In 2003 and 2004 two on-farm trials aimed at controlling M. hapla and Pratylenchus spp. were conducted in Niedersachsen, Germany. Results from these trials can be summarized as follows. For M. hapla, best control was achieved with black fallow and maize in combination with weed control. Fodder radish...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2005
URL: http://orgprints.org/3477/1/3477.pdf

Below- and aboveground abundance and distribution of fungal entomopathogens in experimental conventional and organic cropping systems
Provedor de dados: 21
Autores: Meyling, Nicolai V.; Thorup-Kristensen, Kristian; Eilenberg, Jørgen.
The below- and aboveground communities of fungal  entomopathogens (Ascomycota: Hypocreales) were investigated in an experimental conventional and organic vegetable cropping system over two seasons in Denmark. The experimental design allowed for evaluating differences between farming practices in the occurrence of soil-borne fungal entomopathogens and as natural infections aboveground in arthropod hosts. Belowground, Metarhizium anisopliae dominated the agricultural field with Beauveria bassiana, Metarhizium flavoviride and Isaria fumosorosea being present at lower frequencies. Abundances of M. anisopliae were not different between conventional and organic soils. Aboveground, B. bassiana was the most common fungal entomopathogen in arthropod host cadavers....
Tipo: Journal paper
Palavras-chave: Soil biology; Biodiversity and ecosystem services.
Ano: 2011
URL: http://orgprints.org/19680/4/19680.pdf

Below- and aboveground abundance and distribution of fungal entomopathogens in experimental conventional and organic cropping systems.
Provedor de dados: 21
Autores: Meyling, Nicolai V.; Thorup-Kristensen, Kristian; Eilenberg, Jørgen.
The below- and aboveground communities of fungal entomopathogens (Ascomycota: Hypocreales) were investigated in an experimental conventional and organic vegetable cropping system over two seasons in Denmark. The experimental design allowed for evaluating differences between farming practices in the occurrence of soil-borne fungal entomopathogens and as natural infections aboveground in arthropod hosts. Belowground, Metarhizium anisopliae dominated the agricultural field with Beauveria bassiana, Metarhizium flavoviride and Isaria fumosorosea being present at lower frequencies. Abundances of M. anisopliae were not different between conventional and organic soils. Aboveground, B. bassiana was the most common fungal entomopathogen in arthropod host cadavers....
Tipo: Journal paper
Palavras-chave: Soil biology; Biodiversity and ecosystem services.
Ano: 2011
URL: http://orgprints.org/19301/4/19301.pdf

Bemisia tabaci, Brevicoryne brassicae and Thrips tabaci abundance on Brassica oleracea var. acephala
Provedor de dados: 86
Autores: Leite,Germano Leão Demolin; Picanço,Marcelo; Jham,Gulab Newandram; Moreira,Márcio Dionízio.
Kale Brassica oleracea var. acephala is attacked by whitefly Bemisia tabaci, aphid Brevicoryne brassicae and Thrips tabaci. One of the main reasons for extensive insecticide application is the lack of information about factors that control insect population. The objectives of this study were to investigate the relationships between predators and parasitoids, organic compound leaves, levels of leaf nitrogen and potassium, total rainfall, relative humidity, sunlight and median temperature on the abundance of whitefly, aphid, and thrips in kale genotype "Talo Roxo". The beating tray method, direct counting and magnifying lens were used to estimate the number of these pests, predators and parasitoids. Median temperature, sunlight and relative humidity...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Population dynamics; Nonacosane; Climatic factors; Braconidae.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000300001

BENEFICIAL AND PEST INSECTS ASSOCIATED WITH TEN FLOWERING PLANT SPECIES GROWN IN QUÉBEC, CANADA
Provedor de dados: 21
Autores: Boisclair, Josée; Lefrançois, Élisabeth; Leblanc , Maryse; Grenier, Michèle; Lefebvre, Maxime; Richard, Geneviève.
Preventive measures are very important in organic agriculture to minimize pest problems. Conservation biological control is one preventive approach. It includes habitat manipulation through which the agroecosystem may be designed to encourage the activity of beneficial insects. The use of flowering strips is one way to do that. This 3-year study was performed on the Organic Agriculture Innovation Platform in Saint-Bruno-de-Montarville, Québec. Canada. It comprises data on insect abundance and composition on ten flowering plant species. Data are collected on beneficial insects such as coccinellid predators and predatory bugs. Are also included in this study observations and counts of insect pests which could also be attracted to this flowering plant species...
Tipo: Conference paper, poster, etc.
Palavras-chave: Biodiversity and ecosystem services.
Ano: 2014
URL: http://orgprints.org/24006/1/24006-OWC2014-Boisclair-Canada-Flowering%20strips_MM.pdf

Beneficial bacterial strains on Agaricus blazei cultivation
Provedor de dados: 86
Autores: Young,Li-Sen; Chu,Jiunn-Nan; Young,Chiu-Chung.
The objective of this work was to evaluate the effects of six bacterial strains isolated from Agaricus blazei (ABM) on its cultivation. The six strains were characterized as to their effects on the productivity, polysaccharide-protein complex (PSPC), and polysaccharide contents of ABM cultured on sterilized casing soils. Three isolates enhanced ABM mycelium growth. Inoculation of Arthrobacter sp. or Exiguobacterium sp. on sterile peat casing soil resulted in 64% increase in ABM mushroom total fresh matter yield compared to the uninoculated control. Inoculation of Exiguobacterium sp., Microbacterium esteraromaticum or Pseudomonas resinovorans on sterilized loamy casing soil resulted in 62, 95, and 59% increase in ABM mushroom total fresh matter yield,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agaricus blazei; Beneficial microbe; Casing soil; Mushroom productivity; Polysaccharide-protein complex; Probiotics.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000600012

Beneficial effect of recombinant human growth hormone on the intestinal mucosa barrier of septic rats
Provedor de dados: 56
Autores: Yi,C.; Cao,Y.; Wang,S.R.; Xu,Y.Z.; Huang,H.; Cui,Y.X.; Huang,Y.
The objective of the present study was to investigate the effects of recombinant human growth hormone (rhGH) on the intestinal mucosa barrier of septic rats and explore its possible mechanism. Female Sprague-Dawley rats were randomized into three groups: control, Escherichia coli-induced sepsis (S) and treatment (T) groups. Groups S and T were subdivided into subgroups 1d and 3d, respectively. Expression of liver insulin-like growth factor-1 (IGF-1) mRNA, Bcl-2 and Bax protein levels and the intestinal Bax/Bcl-2 ratio, and plasma GH and IGF-1 levels were determined. Histological examination of the intestine was performed and bacterial translocation was determined. rhGH significantly attenuated intestinal mucosal injuries and bacterial translocation in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intestinal mucosa barrier; Growth hormone; Sepsis; Insulin-like growth factor-1; Apoptosis.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000100006

Beneficial Effects of Angiotensin II AT1 Blocker on Cardiovascular Adverse Remodeling Due to Nitric Oxide Synthesis Blockade
Provedor de dados: 77
Autores: Fernandes-Santos,Caroline; Mendonça,Leonardo de Souza; Mandarim-de-Lacerda,Carlos Alberto.
We studied with morphological tools the effects of different doses of Losartan upon the cardiovascular remodeling in nitric oxide deficient rats. At 15 weeks of age, thirty Wistar rats were separated in six groups: control (C), L-NAME (LN), and four groups were LN was given plus Losartan at different doses (1, 5, 20 and 40 mg/kg/day). The L-NAME was given for 9 weeks, the Losartan administration starting on the 2nd week of experiment. We studied the heart, thoracic aorta and superior mesenteric artery with light microscopy and stereology. The blood pressure (BP) increased since the first week of L-NAME administration, the Losartan treatment at doses of 20 and 40 mg/kg/day was efficient to reduce BP after the 7th week of treatment. The cardiac adverse...
Tipo: Journal article
Palavras-chave: Losartan; Angiotensin II; L-NAME; Hypertension; Renin-angiotensin system; Stereology; L-NAME.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000400003

Beneficial effects of bio-controlling agent Bacillus cereus IB311 on the agricultural crop production and its biomass optimization through response surface methodology
Provedor de dados: 42
Autores: BANERJEE,GOUTAM; GORTHI,SRIKANTH; CHATTOPADHYAY,PRITAM.
ABSTRACT Disease in agricultural field is a big problem that causes a massive loss in production. In this present investigation, we have reported a soil-borne bacterium Bacillus cereus IB311 which is antagonistic to plant pathogens (Pseudomonas syringae and Agrobacterium tumefaciens), and could make a substantial contribution to the prevention of plant diseases. To prove the practical application, the strain was directly applied in agricultural field. The results demonstrated that B. cereus IB311 has increased the production (20% and 26% in term of average pod number per plant, average seed number per pod, and seed yield per experimental plot) in ground nut (Arachis hypogaea var. Koushal, G201) and sesame (Sesamum indicum var. Kanak), respectively. To...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacillus cereus; Bio-control; Phytopathogens; RSM; Field application; Crop production.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502149

Beneficial effects of Cuscuta chinensis extract on glucocorticoid-induced osteoporosis through modulation of RANKL/OPG signals
Provedor de dados: 56
Autores: Mo,Hui; Zhang,Ning; Li,Huifu; Li,Fan; Pu,Rong.
Cuscuta chinensis Lam. (Convolvulaceae) is an important herbal medicine widely used to improve sexual function, treat osteoporosis, and prevent aging, and has been reported to exhibit anti-osteoporotic effects in vitro. However, the activity of Cuscuta chinensis Lam. on glucocorticoid-induced osteoporosis still remains unclear. The present study aimed to assess the protective effect and the underlying mechanism of action of Cuscuta chinensis extract (CCE) against glucocorticoid-induced osteoporosis in vivo. Sprague-Dawley rats were randomly divided into four groups as follows: control group, osteoporosis group, and 2 CCE-treated osteoporosis groups (100 mg·kg-1·day-1). Blood samples and femur bones were collected for immunohistochemistry, biochemical, mRNA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dexamethasone; Oxidative status; Bone formation; Anti-osteoporosis; RunX2.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019001200612

Beneficial effects of exercise training (treadmill) on insulin resistance and nonalcoholic fatty liver disease in high-fat fed C57BL/6 mice
Provedor de dados: 56
Autores: Marques,C.M.M.; Motta,V.F.; Torres,T.S.; Aguila,M.B.; Mandarim-de-Lacerda,C.A.
C57BL/6 mice develop signs and symptoms comparable, in part, to the human metabolic syndrome. The objective of the present study was to evaluate the effects of exercise training on carbohydrate metabolism, lipid profile, visceral adiposity, pancreatic islet alterations, and nonalcoholic fatty liver disease in C57BL/6 mice. Animals were fed one of two diets during an 8-week period: standard (SC, N = 12) or very high-fat (HF, N = 24) chow. An exercise training protocol (treadmill) was then established and mice were divided into SC and HF sedentary (SC-Sed, HF-Sed), exercised groups (SC-Ex, HF-Ex), or switched from HF to SC (HF/SC-Sed and HF/SC-Ex). HF/HF-Sed mice had the greatest body mass (65% more than SC/SC-Sed; P &lt; 0.0001), and exercise reduced it by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Obesity; Lipid metabolism; Metabolic syndrome; Aerobic training; Fatty liver; Stereology.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000500008

Beneficial role of allicin from garlic in cervical cancer
Provedor de dados: 17
Autores: Irfan Ahmad Ansari; Najmul  Islam.
Introduction: Cervical cancer remains a global health concern for females. Thus, in order to control cervical cancer, attempts are being made by researchers globally to somehow induce programmed cell death in the said cancerous cells. Wide spectrums of molecules are being probed for its ability to induce apoptosis in cervical cancer cells. Focus has now shifted in exploring natural compounds having antioxidant and anti-inflammatory molecules that may induce apoptosis in cancerous cells. Thus, we have employed allicin from garlic- a natural antioxidant, to probe the above in the present study.&amp;#xd;&amp;#xa;Objective: To probe whether or not allicin from garlic, a natural antioxidant, induces apoptosis in monocytes from patients with cervical...
Tipo: Poster
Palavras-chave: Cancer; Molecular Cell Biology.
Ano: 2008
URL: http://precedings.nature.com/documents/1561/version/1

Benefit Evaluation on the Control Mode for Typical Karst Rocky Desertification in Guizhou Province, China
Provedor de dados: 31
Autores: Zuo,   Xing-jun; Zuo,   Tai-an; Xu,   Shu-jian.
Control mode for typical karst rocky desertification in Guizhou Province, China is selected as the research object. The ecological benefit, the social and economic benefit and the popularization prospect of mode are selected as evaluation indices. Evaluation index system of control mode benefits for karst rocky desertification is established. The Dingtan mode and the Wangjiazhai-Yangchangdong small watershed control mode are selected as evaluation objects. Preliminary assessment on the two modes are carried out by Analytic Hierarchy Process，grading evaluation, and comprehensive evaluation method. Result shows that comprehensive score of Dingtan mode is 3.81, which is higher than the score of Wangjiazhai-Yangchangdong small watershed control mode (3.11). In...
Tipo: Journal Article
Palavras-chave: Desertification; Control mode; The Dingtan mode; The Wangjiazhai-Yangchangdong small watershed control mode; Guizhou Province; China; Agribusiness.
Ano: 2010
URL: http://purl.umn.edu/96070

Benefit-Cost Analysis and Socio-Economic Considerations of Trypanosomiasis Control and Treatment in Northern Ghana
Provedor de dados: 31
Autores: Wahab,   S.; Asuming-Brempong,   Samuel.
The paper estimates the cost of tsetse control and treatment of trypanosomiasis and the benefits involved, using benefit-cost analysis. It also estimates the extent to which socio-economic characteristics of farmers affect the use of tsetse control techniques, using a maximum Likelihood-Binary Logit model. The results show that farmers will benefit if they invest in control and treatment of the disease. We find that the farmer accepting the challenge that the tsetse fly is a threat to cattle production, the number of dependants the farmer has, and the farmer agreeing that the bite of the tsetse fly causes the nagana disease are significant factors that affect adoption of control practices including the use of prescribed drugs. Our findings suggest that...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Financial Economics; Food Security and Poverty; International Relations/Trade; Land Economics/Use; Livestock Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008
URL: http://purl.umn.edu/52878

Benefits Associated with the Interaction of Endophytic Bacteria and Plants
Provedor de dados: 52
Autores: Santos,Miriam Langner dos; Berlitz,Diouneia Lisiane; Wiest,Shana Leticia Felice; Schünemann,Rogerio; Knaak,Neiva; Fiuza,Lidia Mariana.
ABSTRACT The endophytic bacteria belong to a larger group of microorganisms that have their life-cycle partly or entirely inside the plant and are located in intra and inter-cellular spaces or in the vascular tissue. These bacteria can be found colonizing aerial parts or roots. This review aims to analyze the colonization strategies of endophytic bacteria through interaction with plants, as well as to highlight the metabolic influence of these organisms in plant tissues, which result in physiological and biochemical changes. Depending on the different mechanisms used internally to colonize a plant, these microorganisms are called obligate, facultative, or passive endophytes. Phytostimulation, biofertilization and biological control are mechanisms that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biofertilization; Biological control; Colonization strategies; Microorganisms; Phytostimulation.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100200

Benefits of automated acclimatization during the pre-milking phase of lactating girolando cows
Provedor de dados: 70
Autores: Silva,Irenilson M. da; Pandorfi,Héliton; Almeida,Gledson L. P.; Guiselini,Cristiane; Henrique,Hugo M.
The aim of this paper was to evaluate the automated acclimatization effects during pre-milking of cows on thermal conditioning, physiology, milk production and cost-benefit of the automated adiabatic evaporative cooling system (AECS). The treatments 20; 30; 40 min and control consisted of exposure time of pre-milking cows to the automated AECS. Sixteen cows were used with an average daily milk yield of 19 kg, distributed in a 4 x 4 Latin square design. The Tukey's test (P&lt;0.05) was used to compare the means. The environmental variables, dry bulb temperature (DBT, ºC) and relative humidity (RH, %), were recorded every minute, which allowed the determination of the system efficiency through the Temperature and Humidity Index (THI). The respiratory rate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thermal comfort; Automation; Dairy cattle; Evaporative cooling system.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162011000500002

Benefits of liquid urea and a microbial catalyst on biomass and the nutritional value of Mombasa grass
Provedor de dados: 109
Autores: Alquichire Rojas,Shirley Lorena; Valencia-Chin,Elide.
Abstract During 2019, an experiment was conducted at the Agricultural Experiment Station in Isabela (Puerto Rico) on an Oxisol with previously well-stablished stands of cv. Mombasa. This experiment assessed the effects of a microbial catalyst (MC) and liquid urea 22-0-0 (LU) at a rate of 168 kg ha-1 (in split applications), a mixture of LU+MC and a control on aboveground biomass, root biomass, nutritional value, nitrogen use efficiency and soil parameters on cv. Mombasa at 35-day (d) harvests during six harvests. The study was established in a completely randomized design with four replicates. The effects of LU and MC on belowground (root) biomass were determined by collecting samples in 1 m2 to determine the yield and chemical composition. Soil samples...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biofertilizer; Bromatological variables; Nitrogen fertilizer; Organic carbon; Tropical forage.
Ano: 2022
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122022000100064

Benefits of superfine grinding method on antioxidant and antifungal characteristic of Brazilian green propolis extract
Provedor de dados: 63
Autores: Augusto-Obara,Thalita Riquelme; Oliveira,Jacqueline de; Gloria,Eduardo Micotti da; Spoto,Marta Helena Fillet; Godoy,Karina; Vieira,Thais Maria Ferreira de Souza; Scheuermann,Erick.
ABSTRACT: Green propolis is found only in Brazil and due to its important biological characteristics, the food industry views it as a rich source of bioactive compounds. However, an extract must be produced for its application, which is difficult considering the rigid characteristics of raw propolis. Superfine grinding, a process capable of reducing particle size, enables the extraction of most bioactive compounds in propolis. This study evaluated the influence of grinding on size characteristics, antioxidant and antifungal properties of Brazilian green propolis for food preservation. The propolis powder was produced through six different types of grinding (different sieves and rpm), and its quality was evaluated by scanning electron microscopy-energy...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; SEM-EDX; Ultracentrifugal mill; Total phenolic content; Food preservative.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001500398

Benthic microbial loop functioning in coastal lagoons: a comparative approach
Provedor de dados: 5
Autores: Manini, E; Fiordelmondo, C; Gambi, C; Pusceddu, A; Danovaro, R.
Coastal lagoons are highly variable and dynamic systems that have been rarely investigated in terms of benthic microbial loop. We present here the results of a comparative study aimed at investigating factors and benthic processes potentially affecting microbial loop functioning in three lagoon systems (Goro, Lesina and Marsala lagoons). The three lagoons were characterised by different geo-morphological, trophic and ecological features. We determined organic matter quantity and biochemical composition, exo-enzymatic activities, bacterial biomass and bacterial carbon production together with heterotrophic nanoflagellate and meiofauna biomass. These variables allowed providing estimates of biomass ratios between different benthic compartments and gathering...
Tipo: Text
Palavras-chave: Boucle microbienne benthique; Détritus organiques; Lagunes côtières; Benthic microbial loop; Organic detritus; Coastal lagoons.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00322/43282/43017.pdf

Benthos distribution modelling and its relevance for marine ecosystem management
Provedor de dados: 5
Autores: Reiss, Henning; Birchenough, Silvana; Borja, Angel; Buhl-mortensen, Lene; Craeymeersch, Johan; Dannheim, Jennifer; Darr, Alexander; Galparsoro, Ibon; Gogina, Mayya; Neumann, Hermann; Populus, Jacques; Rengstorf, Anna M.; Valle, Mireia; Van Hoey, Gert; Zettler, Michael L.; Degraer, Steven.
Marine benthic ecosystems are difficult to monitor and assess, which is in contrast to modern ecosystem-based management requiring detailed information at all important ecological and anthropogenic impact levels. Ecosystem management needs to ensure a sustainable exploitation of marine resources as well as the protection of sensitive habitats, taking account of potential multiple-use conﬂicts and impacts over large spatial scales. The urgent need for large-scale spatial data on benthic species and communities resulted in an increasing application of distribution modelling (DM). The use of DM techniques enables to employ full spatial coverage data of environmental variables to predict benthic spatial distribution patterns. Especially, statistical DMs have...
Tipo: Text
Palavras-chave: Ecosystem approach; Environmental monitoring; Habitat suitability modelling; Macrofauna; Mapping; Marine spatial planning (MSP); Predictive modelling; Species distribution modelling.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00203/31405/29915.pdf

Benzothiadiazole (BTH) induces resistance to Pepper golden mosaic virus (PepGMV) in pepper (Capsicum annuum L.)
Provedor de dados: 48
Autores: Trejo-Saavedra,D.L; García-Neria,M.A; Rivera-Bustamante,R.F.
Pepper is an economically important crop in many countries around the world but it is susceptible to many diseases. In Mexico, diseases caused by bipartite begomoviruses have emerged as important problems in pepper. Several control strategies have been explored wiht little success; most of them are based on the avoidance of virus transmission and the breeding for resistance. Abiotic inducers can act at various points in the signaling pathways involved in disease resistance, providing long-lasting, wide-spectrum resistance. Benzothiadiazole (BTH) shares the property of activating the systemic acquired resistance pathway downstream from the SA signaling. In this work, resistance to PepGMV infection was induced in pepper plants by activating the SA pathway...
Tipo: Journal article
Palavras-chave: Geminivirus; Systemic acquired resistance; Induced resistance; BTH.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602013000400004

Berberine induces apoptosis via ROS generation in PANC-1 and MIA-PaCa2 pancreatic cell lines
Provedor de dados: 56
Autores: Park,S.H.; Sung,J.H.; Kim,E.J.; Chung,N.
Pancreatic cancer is the fourth leading cause of cancer death. Gemcitabine is widely used as a chemotherapeutic agent for the treatment of pancreatic cancer, but the prognosis is still poor. Berberine, an isoquinoline alkaloid extracted from a variety of natural herbs, possesses a variety of pharmacological properties including anticancer effects. In this study, we investigated the anticancer effects of berberine and compared its use with that of gemcitabine in the pancreatic cancer cell lines PANC-1 and MIA-PaCa2. Berberine inhibited cell growth in a dose-dependent manner by inducing cell cycle arrest and apoptosis. After berberine treatment, the G1 phase of PANC-1 cells increased by 10% compared to control cells, and the G1 phase of MIA-PaCa2 cells was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pancreatic cancer; Berberine; Gemcitabine; Apoptosis; Cell cycle arrest.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000200111

Berry-cluster thinning to reduce compactness of ‘Black Star’ table grapes
Provedor de dados: 65
Autores: Roberto,Sergio Ruffo; Mashima,Cesar Hideki; Colombo,Ronan Carlos; Assis,Adriane Marinho de; Koyama,Renata; Yamamoto,Lilian Yukari; Shahab,Muhammad; Souza,Reginaldo Teodoro de.
ABSTRACT: The berry-cluster thinning technique was evaluated at different phenological times to prevent bunch compactness of ‘Black Star’ table grape, a new somatic mutation of ‘Brasil’ grape. The trial was carried out during 2012 and 2013 seaons in a vineyard situated in Marialva, PR, Brazil. Vines were trained in an overhead trellis system and spaced at 3x4m. The randomized block design was used as a statistical model with five replications and five treatments. The following treatments were evaluated: control; brushing prior to anthesis; and berry-cluster thinning at different times, when berries were 3-6, 7-10, or 11-15mm in diameter. The prevalence of bunch compactness was evaluated considering the levels: loose, medium loose, and dense bunches. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitis vinifera L.; Grape thinning; Cultural practices.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000400206

Besouros nocivos à bacabeira: Dynamis borassi e Foveolus aterpes.
Provedor de dados: 14
Autores: COUTURIER, G.; OLIVEIRA, M. do S. P. de; BESERRA, P.
bitstream/item/39861/1/Com-Tec-19-Am-Oriental.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Controle de praga; Oenocarpus mapora; Dynamis borassi; Faveolus aterpes; Pará; Brasil.; Bacaba.; Amazonia; Pest control.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/377942

Best Management Practices to Enhance Water Quality: Who is Adopting Them?
Provedor de dados: 31
Autores: Ghazalian,   Pascal L.; Larue,   Bruno; West,   Gale E.
This study investigates the determinants affecting producers’ adoption of some Best Management Practices (BMPs). Priors about the signs of certain variables are explicitly accounted for by testing for inequality restrictions through importance sampling. Education, gender, age, and on-farm residence are found to have significant effects on the adoption of some BMPs. Farms with larger animal production are more apt to implement manure management practices, crop rotation, and riparian buffer strips. Also, farms with larger cultivated acres are more inclined to implement herbicide control practices, crop rotation, and riparian buffer strips. Belonging to an agro-environment club has a positive impact for most BMPs.
Tipo: Journal Article
Palavras-chave: Adoption; Bayesian analysis; Best management practices; Priors; Runoff; Water quality; Agribusiness; Agricultural and Food Policy; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Land Economics/Use; Livestock Production/Industries; Q12; Q25; C11.
Ano: 2009
URL: http://purl.umn.edu/56655

Best practice for establishing nutrient concentrations to support good ecological status
Provedor de dados: 5
Autores: Phillips, Geoff; Kelly, Martyn; Teixeira, Heliana; Salas, Fuensanta; Free, Gary; Leujak, Wera; Solheim, Anne Lyche; Varbiro, Gabor; Poikane, Sandra.
The EU Member States, Norway and the European Commission in 2000 have jointly developed a common implementation strategy (CIS) for implementing Directive 2000/60/EC, the Water Framework Directive (WFD) to ensure consistent implementation. The focus is on developing a common understanding of the technical and scientific implications of the WFD. One of the objectives is the development of non-legally binding and practical Guidance Documents on various technical issues of the Directive. These are targeted at experts who are directly or indirectly implementing the WFD in river basins. The structure, presentation and terminology are therefore adapted to their needs and formal, legalistic language is avoided wherever possible. In 2009 CIS Guidance on...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00502/61345/64947.pdf

Best practices of GIS applications in the Hungarian agriculture
Provedor de dados: 31
Autores: Rathonyi,   Gergely; Varallyai,   Laszlo; Herdon,   Miklos.
Information and analysis produced with the use of GIS applications efficiently support the work of the users of the software and decision makers irrespectively of they are a single person or the Hungarian Government. We primarily discuss the major agriculture applications – Land Parcel Identification System (LPIS) and National and Regional Planning Information System (TeIR) – from the aspect of the sector which may save time, energy and money for its users.  LPIS is exclusive national land parcel identification system of the procedures of agricultural subsidies. The data of this identification system can be used in the applying of European Union subsidies which are available in a geographical information system.  TeIR can help such organizations, which...
Tipo: Journal Article
Palavras-chave: Land Parcel Identification System; Integrated Administration and Control System; Orthophotos; Physical block; Land development; Internet; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies; GA; IN.
Ano: 2010
URL: http://purl.umn.edu/96868

Bestandesbetreuung und antibiotikafreies Tiergesundheitsmanagement in der Schweiz (Pro-Q)
Provedor de dados: 21
Definition of the problem:  The objective of the project is the implementation of on-farm-measures to reduce the usage of antibiotics in mastitis control drastically. A project team of 5 veterinarians and 2 agronomists will collect data of mastitis causing factors on 100 new farms per year in Switzerland: housing, feeding, human-cow-interaction, milking technology, milking hygiene. These data will be connected to the mastitis status of the herd based on quarter milk samples and milk recording dates. During a period of at least 2, years these farms will be intensively advised by the project team and the practical veterinarian. Therapies will primarily based on homeopathic remedies. The development of mastitis causing factors and the mastitis status of the...
Tipo: Project description
Palavras-chave: Health and welfare.
Ano: 2023
URL: http://orgprints.org/6281/1/heil%2Det%2Dal%2D2006%2Dprojektbeschreibung%2Dproq.pdf

Bestimmung der optimalen Aussaat- und Umbruchtermine einer überwinternden Leguminosen-Gründüngung für die nachhaltige Bekämpfung pflanzenparasitärer Nematoden im ökologischen Gemüsebau
Provedor de dados: 21
Entwicklung einer nachhaltigen Fruchtfolgestrategie basierend auf dem Anbau einer überwinternden Leguminosen-Gründüngung zur Stickstoffgewinnung in Kombination mit einer Bekämpfung des Wurzelgallennematoden Meloidogyne hapla. Im speziellen geht es darum, die Aussaat- und Umbruchtermine der überwinternden Leguminosen-Gründüngung an die Biologie von M. hapla anzupassen, so dass es nicht zu einer Vermehrung der Nematoden kommt. Die Ergebnisse tragen zu einer Verbesserung nachhaltiger Verfahren der Nematodenbekämpfung im Ökolandbau bei und schließen Lücken bei der Entwicklungsbiologie von M. hapla während der Wintermonate.
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions.
Ano: 2023

Bestimmung der optimalen Aussaat- und Umbruchtermine einer überwinternden Leguminosen-Gründüngung für die nachhaltige Bekämpfung pflanzenparasitärer Nematoden im ökologischen Gemüsebau
Provedor de dados: 21
Autores: Hallmann, Johannes; Fittje, Susanne; Warnecke, Hermann; Buck, Holger; Rau, Florian; Krüssel, Stefan.
Pflanzenparasitäre Nematoden können in engen Gemüse-Fruchtfolgen erhebliche wirtschaftliche Schäden verursachen. Zu den Hauptschaderregern gehören Meloidogyne hapla und Pratylenchus spp. Gefördert werden diese Nematoden insbesondere durch den Anbau von Leguminosen. Im vorliegenden Forschungsvorhaben wurde untersucht, wie Leguminosen anzubauen sind, um einerseits Stickstoff zu fixieren, andererseits aber eine Vermehrung von M. hapla zu verhindern. Eine Lösung könnte der Anbau als überwinternde Leguminosen-Gründüngung darstellen. In dreijährigen Feldversuchen konnte gezeigt werden, dass es bei Aussaat der Leguminosen-Gründüngung ab Ende August nicht mehr zu einer Nematodenvermehrung vor Beginn der Winterruhe kommt. Im folgenden Frühjahr muss dann erst wieder...
Tipo: Report
Palavras-chave: Crop combinations and interactions Vegetables Crop health; Quality; Protection.
Ano: 2012
URL: http://orgprints.org/20939/1/20939-06OE052-jki-hallmann-2012-pflanzenparasiteare-nematoden-gemuesebau.pdf

Betacyanin and antioxidant system in tolerance to salt stress in Alternanthera philoxeroides
Provedor de dados: 115
Autores: Ribeiro,Márcia Vaz; Deuner,Sidnei; Benitez,Letícia Carvalho; Einhardt,Andersom Milech; Peters,José A.; Braga,Eugenia J. Bolacel.
Salinity is a limiting factor fot growth and development, since it affects several physiological processes in plants. This trial aimed to assess the levels of photosynthetic pigments, betacyanins, lipid peroxidation and activity of antioxidant enzymes in Alternanthera philoxeroides under salt stress. Plants originated from an in vitro culture were acclimatized and irrigated with sodium chloride (0, 200 and 400 mM) for 30 d. The experimental design was completely randomized with a 3×2 factorial arrangement of treatments: three concentrations of NaCl and two plant tissues (stems and leaves). The experimental data was subjected to an analysis of variance and means where compared using Tukey test (p≤0.05). The levels of chlorophylls a, chlorophylls b and total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amaranthaceae; Alligator weed; Sodium chloride; Photosynthetic pigments; Antioxidant enzymes.
Ano: 2014
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952014000200006

Beta-glucan attenuates cerebral ischemia/reperfusion-induced neuronal injury in a C57BL/J6 mouse model
Provedor de dados: 60
Autores: Kaya,Kürşat; Çiftçi,Osman; Öztanır,Mustafa Namık; Taşlıdere,Elif; Türkmen,Neşe Başak.
Beta-glucans (βg), that have many useful effects on human health, are natural polysaccharides. Our aim in this study was to determine useful effect of βg against oxidative and neuronal damage caused by global cerebral ischemia/reperfusion (IR) in stroke imitated mice via surgical operation. A total of 40 mice divided into four equal groups randomly. The group 1 (sham operated) was kept as control. Bilateral carotid arteries of subjects in group 2 (I/R) and group 4 (I/ R + βg) were clipped for 15 min, and the mice in group 4 (I/R + βg) were treated with βg (50 mg/kg/day), while the mice in group 2 (I/R) were treated with only vehicle for 10 days. The mice of group 3 (βg) were treated with βg for 10 days without carotid occlusion. Global cerebral I/R...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Global cerebral I/R; Oxidative stress; Neuronal damage; Beta-glucan; C57BL/J6 mice.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100570

Beta-glucan prevents toxic effects of 2,3,7,8-TCDD in terms of oxidative and histopathological damage in heart tissue of rats
Provedor de dados: 60
Autores: Ciftci,Osman; Duman,Ahmet Sefa; Turkmen,Neşe Basak; Taslıdere,Aslı.
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a widespread environmental contaminant which causes severe toxic effects. Despite there is some suggestion concerning with TCDD induced cardiotoxicity such as formation of free radicals, the main mechanism has not been entirely explained. Beta-glucan is known as strong antioxidant matter and can scavenge free radicals. Therefore this study aimed to investigate the protective effects of beta-glucan against TCDD induced cardiotoxicity in rats. In this study, 2-3 months of age and 190-250 g in weight 32 rats were randomly divided into four equal groups (n=8 for each group). Group 1 was control; Group 2 was TCDD group (2 µg/kg/week); group 3 was the beta-glucan group(50 mg/kg/day), and group 4 was TCDD and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beta-glucan/protective effects 2; 3; 7; 8-Tetrachlorodibenzo-p-dioxin (TCDD) Cardiotoxicity Rats.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000300623

Between-season attraction of cotton boll weevil, Anthonomus grandis Boh. (Coleoptera: Curculionidae) adults by its aggregation pheromone
Provedor de dados: 63
Autores: Fernandes,Wedson Desidério; Carvalho,Sérgio Luis de; Habib,Mohamed.
The present study was undertaken to investigate the attractiveness of boll weevil adults by its aggregation pheromone under winter field conditions. Two experimental fields were utilized at "Casa Branca", SP, Brazil. For each one, three areas were established near the refuge vegetation, sparated 500 m from each other. Each area was divided in three sub-areas or blocks of 100 m² to receive pheromone applications (2.5 g per block). In addition to the pre-application counting, five additional evaluations were carried out after the pheromone applicaton. Ten randomized sampling points per block were considered in each evaluation process. A. grandis adults responded immediately to the pheromone applications, and were captured for 14 days . The highest level of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthonomus grandis; Insecta; Cotton; Management.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162001000200003

Bevacizumab and gefitinib enhanced whole-brain radiation therapy for brain metastases due to non-small-cell lung cancer
Provedor de dados: 56
Autores: Yang,R.F.; Yu,B.; Zhang,R.Q.; Wang,X.H.; Li,C.; Wang,P.; Zhang,Y.; Han,B.; Gao,X.X.; Zhang,L.; Jiang,Z.M.
Non-small-cell lung cancer (NSCLC) patients who experience brain metastases are usually associated with poor prognostic outcomes. This retrospective study proposed to assess whether bevacizumab or gefitinib can be used to improve the effectiveness of whole brain radiotherapy (WBRT) in managing patients with brain metastases. A total of 218 NSCLC patients with multiple brain metastases were retrospectively included in this study and were randomly allocated to bevacizumab-gefitinib-WBRT group (n=76), gefitinib-WBRT group (n=77) and WBRT group (n=75). Then, tumor responses were evaluated every 2 months based on Response Evaluation Criteria in Solid Tumors version 1.0. Karnofsky performance status and neurologic examination were documented every 6 months after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Non-small-cell lung cancer; Brain metastasis; Bevacizumab; Gefitinib; Whole brain radiotherapy.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000100606

Bewirtschaftung von organochlorbelasteten Böden
Provedor de dados: 21
State of the Art:  Residues of organochlorine pesticides (OCP) in soils, such as Dieldrin and DDT contaminate crops, even though their use was banned by the European Union 30 years ago. The aim of this project is to develop methods reducing the concentration of OCP in the edible parts of crops grown on contaminated soils. This will be achieved by a two step procedure: First we will add different organic carbon sources to the soil, which can lead to binding and immobilising of OCP, resulting in reduced bioavailability of OCP. Second we will select root stocks of grafted plants (i.e. cucumbers) with a high capacity to exclude OCP from plant uptake. Combinations of these two methods will be evaluated.  Definition of the problem:  Background: Organochlorine...
Tipo: Project description
Palavras-chave: Soil.
Ano: 2023

Beyond neorealism interaction capacity.
Provedor de dados: 121
Autores: Buzan, Barry.
Tipo: InteractiveResource
Palavras-chave: REALISMO; CONTROL; ANARQUIA.
Ano: 1993
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=10534&tab=opac&oai:flacso.org.ec:10534

Beyond Structure: KiSAO and TEDDY -- Two Ontologies Addressing Pragmatical and Dynamical Aspects of Computational Models in Systems Biology
Provedor de dados: 17
Autores: Dagmar K&amp;#xf6;hn; Nicolas Le Nov&amp;#xe8;re; Christian Kn&amp;#xfc;pfer.
Computational models are becoming more and more the central scientific paradigm for understanding the complexity of living systems. With the increasing number and size of these models there is a growing need for model reuse and exchange. Furthermore, detailed models are not manageable without computer support. There are efforts to formalise the mathematical structure of models (e.g. SBML) and to standardise the kinetic and biological meaning of model components (e.g. SBO, GO, UniProt). However, formalising only the structure of computational models is not sufficient to easily exchange and reuse models and to achieve full computer support for modelling. We also need to formalise the pragmatical and dynamical aspects of...
Tipo: Poster
Palavras-chave: Molecular Cell Biology; Bioinformatics.
Ano: 2009
URL: http://precedings.nature.com/documents/3137/version/1

BGC Argo quality control manual for particles backscattering
Provedor de dados: 5
Autores: Schmechtig, Catherine; Boss, Emmanuel; Briggs, Nathan; Claustre, Herve; Dall'Olmo, Giorgio; Poteau, Antoine.
This document is the BGC-Argo quality control manual for particles backscattering. It describes the method used in real-time to apply quality control flags to particles backscattering calculated from specific sensors mounted on Argo profiling floats.
Tipo: Text
Palavras-chave: Argo; Physical oceanography; In-situ marine data; Profiling floats; Bbp; Operational oceanography; Biogeochemistry.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00491/60262/63668.pdf

Bicudo (Anthonomus grandis Boheman) : Nova ameaça a cotonicultura brasileira - biologia e controle.
Provedor de dados: 14
Autores: BRAGA SOBRINHO, R.; LUKEFAHR, M. J.
Historia do Anrhonomus grandis no mundo; Habitos e biologia do A. grandis; Insetos semelhantes ao bicudo; Plantas hospedeiras do bicudo; Fenologia do bicudo do algodoeiro-Anthonomus grandis; Controle quimico para o controle do bicudo; Migracao e dispersao; Diapausa do bicudo; Feromonios; Controle cultural; Inimigos naturais do bicudo; Resistencia da planta ao bicudo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Brasil; Pest; Control; Boll weevil; Resistance.; Algodão; Bicudo; Anthonomus Grandis; Biologia; Historia; Gossypium Hirsutum; Praga; Resistência.; Cotton; History.
Ano: 1983
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/262596

Bicudo do algodoeiro (Anthonomus grandis Boheman): uma ameaça a cotonicultura do Estado do Pará.
Provedor de dados: 14
Autores: SILVA, A. de B.
bitstream/item/60874/1/CPATU-Doc101.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle de praga; Bicudo do algodoeiro; Pará; Brasil.; Algodão; Anthonomus Grandis.; Amazonia; Cotton; Pest control.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375894

Biflavonoids inhibit the production of aflatoxin by Aspergillus flavus
Provedor de dados: 56
Autores: Gonçalez,E.; Felicio,J.D.; Pinto,M.M.
The biflavonoids 6,6"-bigenkwanin, amenthoflavone, 7,7"-dimethoxyagastisflavone and tetradimethoxybigenkwanin isolated from Ouratea species were tested for inhibitory activity on Aspergillus flavus cultures. Suspensions of Aspergillus flavus spores were inoculated into 50 ml of YES medium at different biflavonoid concentrations: 5 and 10 µg/ml for 6,6"-bigenkwanin, amenthoflavone and 7,7"-dimethoxyagastisflavone, and 5, 10, 15 and 20 µg/ml for tetradimethoxybigenkwanin. The four biflavonoids showed inhibitory activity on aflatoxin B1 and B2 production (P&lt;0.001), but did not inhibit fungal growth at the concentration tested (P&gt;0.05). These results show that biflavonoids can be used for the development of agents to control aflatoxin production.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Ouratea sp; Aspergillus flavus; Biflavonoids; Aflatoxins.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001100013

Bijdrage tot de kennis der mariene fauna van de Belgische kust: 4. De bestrijding van de oesterplaag &lt;i&gt;Crepidula fornicata&lt;/i&gt; L. in de Spuikom te Oostende
Provedor de dados: 27
Autores: Polk, P.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Introduced species Oyster culture Pest control Crepidula fornicata (Linnaeus; 1758) ANE; Belgium; Oostende Harbour; Sluice Dock.
Ano: 1962
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7927

Bilan de l'azote et du phosphore dans le système lagune - bassin versant de Thau
Provedor de dados: 5
Autores: Pichot, P.; Ximenes, M.-c.; Deslous Paoli, J.-m.; Juge, C.
General survey is required to understand the operating conditions of a lagoon. From the available bibliographic data the terms of the balance in Nitrogen and Phosphorus have been drafted by bringing out the nature and the quality of the data, considering the information hetegeneousness. The great masses have been taken into account : stocks in water and sediments, fluxes between lagoon and exterior, exchanges between the various stocks. As far as possible the collected data have been set out yearly and seasonally. Moreover we tried to identify the shell-fish culture area and the rest of the lagoon separately in order to bring out the specifities of each area. This work offers a first clarification on the trends regarding the lagoon control and gives...
Tipo: Text
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00039/15017/12344.pdf

Bilan de l'état zoosanitaire des mollusques en Méditerranée française : 1988-2001
Provedor de dados: 5
Autores: Pichot, Yves.
The fact that molluscs from the Mediterranean have benefited from a privileged zoosanitary condition compared to those of the other French coasts has for a long time limited the control of farms and natural fields in this area. It is only in the early 70's, because of the pathological problems and risks observed in other areas that Mediterranean molluscs started to be stictly under zoosanitory control. This control was however limited until the early 90's. With the implementation of the European directives 91/67 and 95/70 for the protection of molluscs against diseases and their propagation, with the creation in 1992 of REPAMO- IFREMER (with a watch unit in the Mediterranean), the control of molluscs in the Mediterranean has considerably improved. Since...
Tipo: Text
Palavras-chave: Méditerranée; Zoosanitaire; Mortalité; Huître plate; Ostrea edulis; Huître creuse; Crassostrea gigas; Moule; Mytilus galloprovincialis; Palourde; Tapes decussatus; Telline; Donas trunculus; Mediterranean; Zoosanitary; Mortality; Flat oyster; Ostrea edulis; Pacific cupped oyster; Crassostrea gigas; Mussel; Mytilus galloprovincialis; Clam; Tapes decussatus; Coquina clam; Donax trunculus.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00145/25579/23717.pdf

Bilan du projet européen REPCO 2004-2007 : Alternative au cuivre dans la maîtrise du mildiou de la vigne
Provedor de dados: 21
Autores: GOMEZ, Christelle.
Dans le cadre du projet européen REPCO (Replacement of copper fungicide in organic production of grapevine and apple in Europe), des produits alternatifs au cuivre ont été testés pour lutter contre le mildiou de la vigne, Plasmopora Viticola, en viticulture biologique. Les résultats du projet soulignent l'intérêt d'un traitement cuprique, avec néanmoins des stratégies pour réduire les doses : pendant les années de faible pression du mildiou, en association avec des éliciteurs ou avec un positionnement stratégique des traitements. Certains produits alternatifs au cuivre ont montré une efficacité intéressante bien qu'inférieure au cuivre : les éliciteurs (chitine de crustacé notamment), un antagoniste à base de Trichoderma Harzianum, de l'argile (le Mycosin)...
Tipo: Newspaper or magazine article
Palavras-chave: Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/35004/1/doc_num.php_explnum_id%3D2019

Bildanalytische Farberkennung zur Geschwindigkeitsregulierung  beim Jäteflieger im ökologischen Möhrenanbau
Provedor de dados: 21
Autores: Langsenkamp, Frederik; Ruckelshausen, A.; Kohlbrecher, Maik; Jenz, M.; Kühling, I.; Trautz, Dieter.
Weed control in organic carrot production is time and cost intensive. There are several practicable techniques available for inter-row weed control, but the most sensitive area - ted by manual weeding. Weed regulation is usually done in uniform operations for one field, but weeds appear in a huge spatial variability, reflecting heterogeneous soil and climate conditions. Following the idea of precision farming, we developed a concept for camera-based weed detection, which displays the density as recommendation for  velocity adaptation for the driver. The system was tested against the usual weeding with one constant velocity in a field trial with randomized plots. By using the new  technology it was possible to increase the area performance by higher average...
Tipo: Conference paper, poster, etc.
Palavras-chave: Vegetables; Buildings and machinery.
Ano: 2017
URL: http://orgprints.org/31849/1/Bildanalytische%20Farberkennung%20zur.pdf

Bioabfallkompost im biologischen Landbau – Auswirkungen auf  die Gehalte von bioverfügbaren Schwermetallen im Boden
Provedor de dados: 21
Autores: Erhart, Eva; Hartl, Wilfried; Bartl, Barbara; Putz, Berta; Horak, Othmar.
The accumulation of heavy metals in soils is a potential risk that may keep organic  farmers from using biowaste compost. As the ecological effects of metals are related  to mobile fractions rather than to total contents in the soil, we measured the total  (aqua regia extractable) heavy metal contents, the readily available water soluble and  the potentially bioavailable LiCl-extractable fraction of soil heavy metals in a field  experiment after ten years with total applications of 95, 175 and 255 t ha-1 biowaste  compost (fresh matter). Total soil contents of Cd, Cr, Cu, Ni and Pb in the compost  treatments were not significantly higher than in the unfertilized control. Total Zn  contents increased in the treatment with the highest application rate. In...
Tipo: Conference paper, poster, etc.
Palavras-chave: Soil quality; Composting and manuring.
Ano: 2009
URL: http://orgprints.org/14479/1/Erhart_14479.pdf

Bioaccumulation, Growth and Photosynthetic Response of a New Found in Bulgaria Invasive Species Lemna minuta and L. valdiviana to Heavy Metal Pollution
Provedor de dados: 87
Autores: VELICHKOVA,K.N.; SIRAKOV,I.N.; SLAVCHEVA-SIRAKOVA,D.T.
ABSTRACT: Heavy metals can meet in the surrounding environment as natural ingredients or from agricultural, industrial and chemical industries. The study was conducted in order to trace the potential of the aquatic plant L. minuta and L. valdiviana for the bioaccumulation of Cu, Cd, and Pb from contaminated water at low levels of these elements. Each of the duckweed species was treated separately with CuSO4.5H2O, CdSO4, Pb SO4 (Valerus, Bulgaria) at 0.5 and 1 mg L-1 concentrations of for 96 hours. After conducting the experiments, relative growth rate (RGR), bioconcentration factor (BCF), tolerant index (Ti) and photosynthetic pigments of two Lemna species were studied. The solution with higher metal concentration more inhibits the growth of macrophytes....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New weed; Lemna species; Environment pollution.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100185

Bioaccumulation of insecticide in Agaricus subrufescens
Provedor de dados: 75
Autores: Carvalho,Maiara A; Marques,Simone C; Martos,Emerson T; Rigitano,Renê LO; Dias,Eustáquio S.
Agaricus subrufescens, known as Sun Mushroom, is a high-value mushroom because of its medicinal properties, used as nutraceutical food to stimulate the immune system and to prevent some diseases, including cancer. Mushrooms are generally characterized by their great ability to bioaccumulate heavy metals and other toxic substances from the mushroom compost. Sugarcane bagasse is a common raw material used in mushroom compost production for Agaricus subrufescenscultivation, whereas insecticides, such as fipronil, can be applied to combat several pests in sugarcane crops. For this reason, we aimed to assess mushroom yield and fipronil bioaccumulation in Sun Mushroom, regarding different concentrations added to the mushroom compost (0, 8, 16 and 32 mg kg-1) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sun mushroom; Edible mushroom; Fipronil; Pest control.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362014000200159

Bioaccumulation of metals in sediment elutriates and their effects on growth, condition index, and metallothionein contents in oyster larvae
Provedor de dados: 5
Autores: Geffard, A; Geffard, O; Amiard, J; His, Edouard; Amiard Triquet, C.
The bioavailability of Cd, Cu, Zn, and Pb from two metal-contaminated sediments (Bidassoa and Dunkerque) was studied using Crassostrea gigas larvae exposed to sediment elutriates. The metal contents within the sediments, the larvae and larval growth, the condition index, and the induction of metallothionein in the larvae were measured. The larval growth and condition index were only affected after exposure to the highest elutriates concentration (5 to 25%) from the most contaminated sediment (Dunkerque). Bioaccumulation of all metals was observed in larvae exposed to Dunkerque elutriatre; only Cu bioaccumulation was observed in the Bidassoa elutriate. The results from larvae exposed to both sediment elutriates show a strong correlation between...
Tipo: Text
Palavras-chave: Metallothionein; Metal bioaccumulation; Larval growth; Crassostrea gigas larvae; Sediment elutriates.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-4748.pdf

Bioactive compounds and antioxidant capacities in the flavedo tissue of two citrus cultivars under low temperature
Provedor de dados: 61
Autores: Mohammadian,Mansour Afshar; Mobrami,Zeinab; Sajedi,Reza Hasan.
Antioxidants production is amongst the physiological responses of plants to protect their tissues from oxidative damages caused by chilling and freezing stresses. Indeed, cold tolerance of plants is related to production of reactive oxygen species (ROS) scavengers to combat oxidative stress. In this study, two citrus cultivars including Citrus sinensis 'Siavaraz' and Citrus limon 'Lisbon' grown at the north of Iran were examined to compare antioxidants changes including total flavonoid, total phenol and total antioxidant capacities (TAC) in the flavedo tissue of the fruits under various low temperature treatments of control (15 ºC), 3, 0, -3 and -6 ºC. The results indicated that total flavonoid content and TAC in Citrus limon 'Lisbon' was significantly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant capacity; Citrus; Low temperature treatment.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202011000300004

Bioactive dihydroxyfuranonaphthoquinones from the bark of Tabebuia incana A.H. Gentry (Bignoniaceae) and HPLC analysis of commercial pau d'arco and certified T.incana bark infusions
Provedor de dados: 36
Autores: Morais,Sabrina Kelly Reis de; Silva,Suniá Gomes; Portela,Cíntia Nicácio; Nunomura,Sergio Massayoshi; Quignard,Etienne Louis Jacques; Pohlit,Adrian Martin.
Tabebuia incana A.H. Gentry (Bignoniaceae) is a tree from the Brazilian Amazon having medicinal uses and is one several Tabebuia spp. known as pau d'arco or palo de arco in this region. Fractionation of the bark ethanolic extract afforded a mixture of 5 and 8-hydroxy-2-(1-hydroxyethyl)naphtho[2,3-b]furan-4,9-diones (1 and 2, respectively) identified on the basis of nuclear magnetic resonance (NMR), infrared (IR) and mass (MS) spectra, whose in vitro antimalarial and antitumor activity have been shown previously. This is the first study on T. incana bark, and 2 are described in this species for the first time. Also, high performance liquid chromatography (HPLC) analysis of T. incana bark tea revealed the presence of the 1 + 2 mixture peak corresponding to a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia franciscana Leach 5-hydroxy-2-(1-hydroxyethyl)naphtho[2; 3-b]furan-4; 9-dione; 8-hydroxy-2-(1-hydroxyethyl)naphtho[2; 3-b]furan-4; 9-dione.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672007000100011

Bioactive forage and phytotherapy to cure and control endo-parasite diseases in sheep and goat farming systems – a review of current scientific knowledge
Provedor de dados: 21
Autores: Rahmann, Gerold; Seip, Hannah.
Infestation with gastro-intestinal nematodes (GIN) in small ruminants can cause severe economic losses and endanger animal welfare. The development of organic farming systems, the increased public awareness for drug residues in agricultural products and the development of resistant strains of parasites have enforced the search for sustainable alternatives.    The aim of this review is to summarise the current scientific knowledge of alternative strategies to prevent and control endo-parasitic diseases in organic sheep and goat farming systems. The conducted literature evaluation has revealed the major potential to be within the field of bioactive forages, phytotherapy, homeopathy and copper-oxide wire particles.    Alternative management pattern like...
Tipo: Book chapter
Palavras-chave: Sheep and goats; Health and welfare; Feeding and growth.
Ano: 2007
URL: http://orgprints.org/12976/1/181_Endoparasiten_Artikel_no_2_von_Rahmann_und_Seip.pdf

Bioactivity and action mechanism of green propolis against Pythium aphanidermatum
Provedor de dados: 42
Autores: PAZIN,WALLANCE M.; SANTOS,SUIKINAI N. DOS; QUEIROZ,SONIA C.N.; BAGATOLLI,LUIS A.; SOARES,ADEMILSON E.E.; MELO,ITAMAR S. DE; ITO,AMANDO S.
Abstract: We have established how natural compounds from green propolis collected by the species Apis mellifera act against the growth of Pythium aphanidermatum. On the basis of mass spectrometry (Q-ToF MS), we determined that Artepillin C, the major constituent of green propolis, underlies the effect and displays activity against P. aphanidermatum at a minimal inhibitory concentration of 750 µg.mL-1. Biophysical studies based on model membranes showed that this inhibitory effect may be linked with a membrane-related phenomenon: Artepillin C increases the permeability of membranes with relatively high fluidity in their lateral structure, a feature that is in line with the lipid composition reported for the cytoplasmic membrane of P. aphanidermatum....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Green propolis; Artepillin C; Fungicide; Pythium aphanidermatum; Model membranes.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300617

Bioactivity of a water extract of boldus (Peumus boldus Molina) against Spodoptera frugiperda (J.E. Smith) and Helicoverpa zea Boddie (Lepidoptera: Noctuidae)
Provedor de dados: 117
Autores: Silva,Gonzalo; Rodríguez,J. Concepción; Blanco,Carlos A; Lagunes,Angel.
The insecticidal properties of water-extract of Peumus boldus Molina and its effect on the development cycle and feeding habits of Spodoptera frugiperda J.E. Smith and Helicoverpa zea Boddie were evaluated under laboratory conditions in concentrations of 0.25, 0.5, 1.0, 2.0, 4.0, and 8.0% (w/w). Spodoptera frugiperda was the most susceptible with 75% mortality at 7 d at 8% P. boldus concentration, while H. zea had only 30% mortality. LC50 was 2.31 mL kg-1 for S. frugiperda and 16.05 mL kg¹ for H. zea. When the extract concentration increased in the diet, larval size and weight, percentage of pupation and number of adults decreased, and the time required to reach those states was greater. Neonate larvae fed primarily on the diet with the lower extract...
Tipo: Journal article
Palavras-chave: Fall armyworm; Corn earworm; Botanical insecticides; Nutritional indexes.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200008

Bioactivity of aqueous extracts of Clibadium sylvestre (Aubl.) Baill. and Derris amazonica Killip on the aphid Myzus persicae (Sulzer, 1776) (Hemiptera: Aphididae)
Provedor de dados: 64
Autores: Filgueiras,Camila Cramer; Farias,Paulo Roberto Silva; Cardoso,Maria das Graças; Vendramim,José Djair; Ramos,Edson Marcos Leal Soares; Cantão,Fernando Rodrigo de Oliveira.
Studies with botanical insecticides have become more popular as an alternative to Integrated Pest Management. The purpose of this study was to evaluate the effect of leaf and fruit aqueous extracts, from the species Clibadium sylvestre, and leaves and root of Derris amazonica species at concentrations of 0, 1, 2, 4 and 8%, in the control of the aphid Myzus persicae (Hemiptera: Aphididae). Four experiments were conducted; two tests with choice preference and two tests with no choice preference, giving nine treatments and five repetitions. Phytochemical screening was carried out from the leaves and fruit of the species C. sylvestre and leaves and root of D. amazonica. Evaluations of mortality, number of nymphs, and deterrence index of the insects were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Organic agriculture; Botanical insecticides; Cunaniol; Rotenone.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600004

Bioactivity of diatomaceous earth to Sitophilus zeamais (Coleoptera: Curculionidae) in different application conditions
Provedor de dados: 91
Autores: Sousa,Adalberto H.; Faroni,Lêda R. A.; Andrade,Gilberto S.; Freitas,Romenique S.; Pimentel,Marco A. G.
The objective of this study was to evaluate the insecticidal activity of diatomaceous earth (DE) at different ambient temperatures on adult Sitophilus zeamais and progeny, using different doses and exposure periods. The experiments were performed in Petri dishes containing 40 g of the whole corn kernel, treated with DE at doses of 0, 0.25, 0.5 and 1.0 kg Mg-1. Each dish was infested with 25 S. zeamais adults and kept at climatic chambers under temperatures of 20, 25, 30, 35 and 40 ºC. The insect mortality was recorded after six and 15 days from the beginning of the bioassays. The grains evaluated at 15 days were separated from insects and kept in the dishes for another 75 days under the same temperature conditions. After this period the effect of ambient...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corn weevil; Inert dusts; Storage; Insect control.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662013000900011

Bioactivity of essential oils from Artemisia against Diaphania hyalinata and its selectivity to beneficial insects
Provedor de dados: 63
Autores: Seixas,Paula Tatiana Lopes; Demuner,Antonio Jacinto; Alvarenga,Elson Santiago; Barbosa,Luiz Claudio Almeida; Marques,Ana; Farias,Elizeu de Sá; Picanço,Marcelo Coutinho.
ABSTRACT: The demand for effective insecticides in pest control with low toxicity to the non-target organisms, such as natural enemies and pollinators, is increasing steadily. A good alternative for synthetic insecticides is natural compounds, including essential oils (EO). This work assessed toxicity of essential oils extracted from Artemisia annua, A. absinthium, A. camphorata, A. dracunculus and A. vulgaris against the melonworm Diaphania hyalinata (Linnaeus, 1758) (Lepidoptera: Crambidae) larvae, a pest of Cucurbitaceae, and their selectivity for fire ant Solenopsis saevissima (Smith) (Hymenoptera: Formicidae) and jataí bee Tetragonisca angustula (Latreille) (Meliponinae). The plants were grown in a greenhouse with mineral fertilization and were used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solenopsis saevissima; Tetragonisca angustula; Melonworm; Insecticide.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000600519

BIOACTIVITY OF EXTRACTS FROM SOLANACEAE AGAINST Zabrotes subfasciatus
Provedor de dados: 37
Autores: GONÇALVES,Gabriel Luiz Padoan; LIRA,Simone Possedente de; GlSSI,Danilo Soares; VENDRAMIM,José Djair.
ABSTRACT The botanical family Solanaceae has many species producing compounds with insecticidal properties, e.g. nicotine and capsaicin, which are used for pest management in agriculture. This fact provides perspectives to identify insecticidal compounds in Brazilian native species of Solanaceae. In this study, we performed a screening with 25 ethanolic extracts from 17 Solanaceae species in order to evaluate their bioactivity against the Mexican bean weevil, Zabrotes subfasciatus (Coleoptera: Chrysomelidae: Bruchinae). The bioactivity of Solanaceae ethanolic extracts (2,500 mg kg-1) was tested with residual contact bioassays. Adults of Z. subfasciatus were exposed to treated bean grains, and adult mortality, oviposition, F1 progeny and damages on grains...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Botanical insecticides; Mexican bean weevil; Phaseolus vulgaris.
Ano: 2021
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2021000100062

Bioactivity of Indonesian mahogany, Toona sureni (Blume) (Meliaceae), against the red flour beetle, Tribolium castaneum (Coleoptera, Tenebrionidae)
Provedor de dados: 92
Autores: Parvin,Sahana; Zeng,Xin-Nian; Islam,Touhidul.
Bioactivity of Indonesian mahogany, Toona sureni (Blume) (Meliaceae), against the red flour beetle, Tribolium castaneum (Coleoptera, Tenebrionidae). The insecticidal activity of Toona sureni (Blume) Merr. was evaluated considering repellency, mortality and progeny production of F1 adults of Tribolium castaneum (Herbst, 1797) (Coleoptera, Tenebrionidae). Dried extract of seeds of T. sureni was dissolved in acetone to prepare solution of various concentrations (0.5, 1.0, 2.5 and 5.0%). To test for repellency, the insects were exposed to treated filter paper. Mortality of larvae, pupae and adults was evaluated by the treatment of spraying the insects with different concentrations of T. sureni extract. Residual effect of the extract was also evaluated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insect mortality; Plant extract; Repellency; Residual effect; Stored wheat.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000300013

Bioactivity of Piper extracts on Tuta absoluta (Lepidoptera: Gelechiidae) in tomato
Provedor de dados: 86
Autores: Brito,Elaine Ferrari de; Baldin,Edson Luiz Lopes; Silva,Roney de Carvalho Macedo; Ribeiro,Leandro do Prado; Vendramim,José Djair.
The objective of this work was to evaluate the bioactivity of ethanolic leaf extracts from four species of the genus Piper against the tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) under laboratory conditions. The evaluated species were: P. amalago var. medium, P. glabratum, P. mikanianum, and P. mollicomum. In the initial screening assay (extract concentration of 2,000 mg L-1), all tested extracts caused significant larval mortality, particularly the extract of P. amalago var. medium; however, no extracts reduced the weight of the surviving larvae. The extract from P. amalago var. medium at the concentration of 1,011 mg L-1 caused a significant lengthening of the larval and pupal stages. The ethanolic leaf extract of P. amalago var. medium is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Piper amalago var. medium; Botanical extracts; Piperamides; Tomato leafminer.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000300196

Bioactivity of Tepa (Laureliopsis philippiana (Looser) Shodde) Powder to Sitophilus zeamais Motschulsky Control in Laboratory
Provedor de dados: 117
Autores: Ortiz U,Ana; Silva A,Gonzalo; Urbina P,Angélica; Zapata S.M,Nelson; Rodríguez M,J. Concepción; Lagunes T,Angel.
The maize weevil (Sitophilus zeamais Motschulsky) is one of the most widespread pests and causes heavy losses of stored grain throughout the world. Control of this insect is primarily dependent upon continued applications of organophosphorus and pyrethroid insecticides and fumigants as phosphine but the increasing problems with current insecticides drive the need for research and to develop new control methods. The insecticidal effect of leaf powder of tepa, Laureliopsis philippiana (Looser) Shodde, was evaluated against maize weevil under laboratory conditions. The parameters evaluated were adult mortality and emergence, grain weight loss and germination, and residual, repellent and fumigant effect. The highest levels of insect mortality were registered...
Tipo: Journal article
Palavras-chave: Stored grains; Botanical insecticides; Maize weevil.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000100011

Bioactivity of the latex from Parahancornia amapa (Apocynaceae) on the development of Rhodnius nasutus (Hemiptera, Reduviidae, Triatominae) under laboratory conditions
Provedor de dados: 92
Autores: Lopes,Marcio B. P.; Mendonça,Paloma M.; Mallet,Jacenir R. S.; Carvalho,Mário G.; Queiroz,Margareth M. C.
Bioactivity of the latex from Parahancornia amapa (Apocynaceae) on the development of Rhodnius nasutus (Hemiptera, Reduviidae, Triatominae) under laboratory conditions. The aim of this study was to verify the effects of the methanolic fraction of the latex from Parahancornia amapa (Apocynaceae) (PALAM) on individuals of the species Rhodnius nasutus Stål (Hemiptera, Triatominae). Many of the insects treated with the substance presented deformities and these may interfere in the feeding and possibly hinder the reproductive capacity. They also presented significant mortality during the molt when compared to the control group, noting a gradual increase in mortality. The treated insects also presented delayed nymphal development (5th instar) and higher adult...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Laboratory; Conditions; Natural products; PALAM; Triatomine; Vector control.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000400012

Bioactivity of the organic extracts of Annona vepretorum on Tetranychus urticae (Acari: Tetranychidae)
Provedor de dados: 86
Autores: Fernandes,Maria Herlândia de Araújo; Menezes,Karen Oliveira de; Souza,Adriana Maria de; Almeida,Jackson Roberto Guedes da Silva; Oliveira,José Eudes de Morais; Gervásio,Rita de Cássia Rodrigues Gonçalves.
Abstract: The objective of this work was to evaluate the lethal and sublethal toxicity of hexane and methanolic extracts from the leaves of Annona vepretorum (Annonaceae) on Tetranychus urticae (Acari: Tetranychidae). The methanolic extract toxicity was evaluated by Potter tower application (topical + residual effect) and by immersion of Canavalia ensiformis leaf disks in the extract solution (residual contact effect). The hexane extract toxicity was evaluated exclusively through residual contact effect. Sublethal effects of the methanolic extract were evaluated through LC50 on the females. Mite preference for feeding and oviposition was evaluated by multiple choice tests, between the control and the extract concentrations, using the hexane and methanolic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetogenins; Botanical acaricide; Botanical extracts; Integrated pest management; Pesticide resistance; Two-spotted spider mite.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900707

Bio-Argo quality control manual for the Chlorophyll-A concentration
Provedor de dados: 5
Autores: Schmechtig, Catherine; Claustre, Herve; Poteau, Antoine; D'Ortenzio, Fabrizio.
This document is the bio-Argo quality control manual for Chlorophyll A concentration. It describes the method used in real-time to apply quality control flags to Chlorophyll A concentration calculated from specific sensors mounted on Argo profiling floats.
Tipo: Text
Palavras-chave: Argo; Physical oceanography; In-situ marine data; Profiling floats; Chlorophyll; Operational oceanography; Biogeochemistry.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00243/35385/60181.pdf

Bioassay assessment of metarhizium anisopliae (metchnikoff) sorokin (deuteromycota: hyphomycetes) against Oncometopia facialis (signoret) (hemiptera: cicadellidae)
Provedor de dados: 58
Autores: Pria Júnior,Wolney Dalla; Lacava,Paulo Teixeira; Messias,Claudio Luiz; Azevedo,João Lúcio; Lacava,Pedro Magalhães.
Citrus Variegated Chlorosis (CVC) is an economically important, destructive disease in Brazil and is caused by Xylella fastidiosa and transmitted by sharpshooter insects. In this study, the efficacy of the fungus Metarhizium anisopliae in controlling the sharpshooter Oncometopia facialis was studied by bioassay conditions. In the bioassay, insects were sprayed with a suspension containing 5 X 10(7) conidia mL-1. Adults captured in the field were treated in groups of 10 in a total of 11 replications per treatment. Significant differences between the natural mortality and the mortality of insects treated with the fungus were observed 6 days after inoculations (P&lt;0.05). These significant differences increased until 10 days after treatment. The fungus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microbial control; Entomopathogen; Citrus Variegated Chlorosis (CVC); Bioassay.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000100027

Bioassay for selection of biocontroller bacteria against bean common blight (Xanthomonas axonopodis pv. phaseoli)
Provedor de dados: 58
Autores: Zanatta,Zarela G.C.N.; Moura,Andréa B.; Maia,Luciano C.; Santos,André S. dos.
Emphasis has been given on selection of micro-organism for biological control. However, in order to evaluate the biological control potential of a great number of micro-organisms in a small period of time it is necessary to develop an efficient bioassay. Seven hundred and sixty bacterial isolates from different habitats, were selected for compatibility with Rhizobium leguminosarum bv. phaseoli (SEMIA 4077 e SEMIA 4080). Among them 596 isolates were ineffective against both rhizobia. Bean seeds immersed in suspension of each one of these isolates were agitated for 5 hours at 10ºC and sowed in non-sterilized soil. The plants were kept in greenhouse. After the development of cotyledonary and primary leaves, these were removed and bioassayed for Xanthomonas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Antagonism; Phaseolus vulgaris; Microbiolization.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300024

Bioassay method for toxicity studies of insecticide formulations to Tuta absoluta (meyrick, 1917)
Provedor de dados: 64
Autores: Galdino,Tarcísio Visintin da Silva; Picanço,Marcelo Coutinho; Morais,Elisangela Gomes Fidelis de; Silva,Nilson Rodrigues; Silva,Geverson Aelton Rezende da; Lopes,Mayara Cristina.
Chemical control is the main method for controlling the tomato leafminer, Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae). Reported techniques for the evaluation of insecticide toxicity to the tomato leafminer are not in agreement with field conditions and do not allow us to verify whether doses used in the field are efficient for control. Thus, the objective of this work was to develop a bioassay methodology to study the toxicity of insecticide formulations to T. absoluta that represent field conditions for fast-acting insecticides (neurotoxics and inhibitors of respiration) and slow-acting insecticides (Bacillus thuringiensis and insect growth regulators). The leaf-dip method was the most efficient method for toxicity studies of insecticides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Susceptibility; Tomato leafminer; Chemical control; Bioassay standardization; Resistance survey.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000500002

Bioatividade de óleos essenciais de espécies de eucalipto para o controle de Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae).
Provedor de dados: 21
Autores: Souza, Taciany Ferreira; Fevero, Silvio; Conte, Cíntia de Oliveira.
Este trabalho tem por objetivo avaliar a ação tóxica e fagoinibidora de óleos essenciais de Corymbia citriodora, Eucalyptus urograndis e E. urophylla para o controle de Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) em milho em ensaios de laboratório e semi-campo. Após a coleta, o material botânico fresco foi processado por turbólise na proporção de 200g de matéria fresca para 1 L de água, e depois submetida à extração de óleo essencial em extrator Clevenger por 3 h. Os óleos essenciais obtidos foram avaliados em relação à referida praga quanto à sua ação tópica, fagoinibição sem chance de escolha, fagoinibição com chance de escolha e dano causado em plantas de milho pulverizadas. Constatou-se que os óleos essenciais testados...
Tipo: Journal paper
Palavras-chave: Crop combinations and interactions; Farming Systems.
Ano: 2010
URL: http://orgprints.org/24495/1/Souza_Bioatividade.pdf

Bioaugmentation of latex rubber sheet wastewater treatment with stimulated indigenous purple nonsulfur bacteria by fermented pineapple extract
Provedor de dados: 69
Autores: Kornochalert,Nastee; Kantachote,Duangporn; Chaiprapat,Sumate; Techkarnjanaruk,Somkiet.
Background Treating latex rubber sheet wastewater often leads to the generation of a rotten-egg odor from toxic H2S. To increase the treatment efficiency and eliminate H2S, purple nonsulfur bacteria (PNSB), prepared by supplementing non-sterile rubber sheet wastewater (RAW) with fermented pineapple extract (FPE), were used to treat this wastewater under microaerobic light conditions. The following 3 independent variables: chemical oxygen demand (COD), initial pH and FPE dose were investigated using the Box-Behnken design to find optimal conditions for stimulating the growth of indigenous PNSB (PNSBsi). Results The addition of 2.0% FPE into RAW, which had a COD of 2000 mg L- 1 and an initial pH of 7.0, significantly decreased oxidation reduction potential...
Tipo: Journal article
Palavras-chave: Bioremediation; Fermented plant extract; Response surface methodology; Rotten-egg odor; Rubber wastewater.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582014000400006

Bioavailability of crude protein and lipid from biofloc meals produced in an activated sludge system for white shrimp, Litopenaeus vannamei
Provedor de dados: 96
Autores: Sabry Neto,Hassan; Santaella,Sandra Tédde; Nunes,Alberto Jorge Pinto.
The present study compared the bioavailability of crude protein and lipid from biofloc meals generated with an activated sludge system using two water sources: wastewater from shrimp experimental culture (BFL-W) and, artificially, using clean seawater (BFL-C). The sludge system operated by chemical and organic fertilization three times per week. Sampling of bioflocs occurred every two days during 81 days. To evaluate digestibility, each type of biofloc meal was incorporated into a reference diet (REF) at 300 g/kg. Another diet acted as a negative control (NEG) by using fish waste meal. The apparent digestibility of bioflocs was estimated by the indirect method using chromic oxide (Cr2O3) as the inert marker at 10 g/kg of the diet. Juvenile L. vannamei of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Activated sludge bioflocs; Digestibility.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000800269

Biochar affects community composition of nitrous oxide reducers in a field experiment
Provedor de dados: 21
Autores: Krause, Hans-Martin; Hüppi, Roman; Leifeld, Jens; El-Hadidi, Mohamed; Harter, Johannes; Kappler, Andreas; Hartmann, Martin; Behrens, Sebastian; Mäder, Paul; Gattinger, Andreas.
N2O is a major greenhouse gas and the majority of anthropogenic N2O emissions originate from agriculturally managed soils. Therefore, developing N2O mitigation strategies is a key challenge for the agricultural sector and biochar soil treatment is one reported option. Biochar's capacity to increase soil pH and to foster activity of specialized N2O reducers has been proposed as possible mechanisms for N2O mitigation. An experiment was undertaken to investigate whether changes in the community composition of N2O reducers was observed under field conditions after biochar application. The study objective was to assess the abundance and taxonomic composition of the functional marker genes nosZ and nosZ –II across a vegetation period of Zea mays L. after biochar...
Tipo: Journal paper
Palavras-chave: Soil quality; Crop husbandry.
Ano: 2018
URL: http://orgprints.org/32767/1/krause-etal-2018-SoilBiolBiochem-vol119-p143-151.pdf

Biochar and Manure Affect Calcareous Soil and Corn Silage Nutrient Concentrations and Uptake.
Provedor de dados: 18
Autores: Lentz, R.D.; Ippolito, J.A.
When added to soils, carbon-rich biochar derived from the pyrolysis of woody materials can sequester atmospheric carbon dioxide, mitigate climate change, and potentially increase crop productivity.  However, research is needed to confirm the suitability and sustainability of biochar application to different soils.  We applied four treatments (dry wt.) to an irrigated calcareous soil in Nov. 2008: control; stockpiled dairy manure, 18.8 Mg/ha; hardwood-derived biochar, 22.4 Mg/ha; and manure + biochar using previous rates.  Nitrogen fertilizer was applied when needed (based on pre-season soil test N and crop requirements) in all plots and years with N mineralized from added manure included in this determination.  Available soil nutrients (NH4-N, NO3-N, Olsen...
Tipo: Article
Palavras-chave: Corn / maize; Manure; Calcareous soil; Soil.
Ano: 2012
URL: http://eprints.nwisrl.ars.usda.gov/1459/1/1424.pdf

Biochar and manure effects on net nitrogen mineralization and greenhouse gas emissions from calcareous soil under corn
Provedor de dados: 18
Autores: Lentz, R.D.; Ippolito, J.A.; Spokas, K.A.
Few multiyear field studies have examined the impacts of a one-time biochar application on net N mineralization and greenhouse gas emissions in an irrigated, calcareous soil; yet such applications are hypothesized as a means of sequestering atmospheric CO2 and improving soil quality.  We fall-applied four treatments, stockpiled dairy manure (42 Mg/ha dry wt.); hardwood-derived biochar (22.4 Mg/ha); combined biochar and manure; and no amendments (control).  Nitrogen fertilizer was applied in all plots and years based on treatment’s pre-season soil test N and crop requirements, and accounting for estimated N mineralized from added manure.  From 2009 to 2011 we measured greenhouse gas fluxes using vented chambers, net N mineralization (NNM) using buried bags,...
Tipo: Article
Palavras-chave: Corn; Manure; Chemistry; Nitrogen; Soil.
Ano: 2014
URL: http://eprints.nwisrl.ars.usda.gov/1558/1/1514.pdf

Biochar and Trichoderma harzianum for the Control of Macrophomina phaseolina
Provedor de dados: 52
Autores: Araujo,Alyson Silva de; Blum,Luiz Eduardo Bassay; Figueiredo,Cícero Célio de.
Abstract This study is based on the importance of biological control methods and the lack of information on the effect of biochar (BCH) from sewage sludge associated or not with Trichoderma harzianum on the control of Macrophomina phaseolina in the bean crop (Phaseolus vulgaris, cv. BRS Estilo). Biochar from sewage sludge, pyrolyzed at 500 ºC and used in low concentration (0.5%), has a direct effect on the in vitro control of M. phaseolina. However, higher BCH concentrations stimulated the growth of the pathogen. In culture medium with or without BCH, T. harzianum (strain 1306) inhibited the mycelial growth of M. phaseolina. The addition of BCH + T. harzianum reduced the deleterious effects caused by M. phaseolina on bean plants. This study demonstrated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pyrolysis; Biological control; Gray rot.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100202

Biochar can positively influence soil moisture relations
Provedor de dados: 18
Autores: Ippolito, J.A.; Levine, Jonah; Williams, Morgan.
One major issue related to climate change is the potential to improve soil water relations in light of changes in future precipitation patterns or reductions in water availability in drier portions of the world (such as the western US).  It appears that biochar may play a positive role, but that role may be soil texture related.  We performed a study with a sandy (Wolverine sand from Shelley, ID), silty (Portneuf silt loam from Kimberly, ID), and clay loam soil (Danville clay loam from a subsurface horizon, from near Oakland, CA) that received either 5 or 10% by volume of lodgepole biochar in either chipped (0.25-0.63”) or fine (0-0.25”) form; a control (no biochar) was also included.  Soil-biochar treatments were evenly mixed and placed into containers,...
Tipo: Article
Palavras-chave: Soil water (soil moisture); Soil.
Ano: 2015
URL: http://eprints.nwisrl.ars.usda.gov/1610/1/1567.pdf

Biochar effect on the mineralization of soil organic matter
Provedor de dados: 86
Autores: Bruun,Sander; EL-Zehery,Tarek.
The objective of this work was to verify whether the addition of biochar to the soil affects the degradation of litter and of soil organic matter (SOM). In order to investigate the effect of biochar on the mineralization of barley straw, soil was incubated with 14C-labelled barley straw with or without unlabelled biochar. To investigate the effect of straw on the mineralization of biochar, soil was incubated with 14C-labelled biochar with or without straw. In addition, to investigate the effect of biochar on old SOM, a soil labelled by applying labelled straw 40 years ago was incubated with different levels of biochar. All experiments had a control treatment, without any soil amendment. The effect of biochar on the straw mineralization was small and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthropogenic dark earth; Organic matter stability; Priming effect; Radiocarbon.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500005

Biochemical Alterations of Weeds in Response to Stress Caused by Herbicides and Total Plant Submersion
Provedor de dados: 87
Autores: MARCHEZAN,M.G.; AVILA,L.A.; SCHAEDLER,C.E.; AMARANTE,L.; SCHERNER,A.; SCHREIBER,F.
ABSTRACT: The maximum biological efficiency of a herbicide is performed when the plants are in favorable condition to absorb and metabolize it. Stress situations, such as total submersion, cause stress in plants, reducing weed control efficiency and crop yield. The objective of this study was to verify whether different soil water content and herbicide treatments alter the components of the secondary metabolism and cause cellular damage in weed species Two experiments were conducted (I and II) in a completely randomized experimental design with a factorial scheme (2 x 2 x 4 and 2 x 5, respectively) and three replicates. The first experiment was conducted with two species (Leersia hexandra and Luziola peruviana), which were submitted to four herbicide...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Luziola peruviana; Leersia hexandra; Echinochloa crus-galli; Oxidative stress; Chemical control.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100288

Biochemical and agronomical responses of grapevines to alteration of source-sink ratio by cluster thinning and shoot trimming
Provedor de dados: 53
Autores: Mota,Renata Vieira da; Souza,Claudia Rita de; Silva,Camila Pinheiro Carvalho; Freitas,Gustavo de Faria; Shiga,Tânia Misuzu; Purgatto,Eduardo; Lajolo,Franco Maria; Regina,Murillo de Albuquerque.
The control of leaf to fruit ratio by the practice of entire clusters removal from the vine upon berry set has been used in traditional vineyards in order to regulate yield and to improve chemical composition of the berries. Although this practice has been settled in temperate zones, little is known about grapevines behavior in tropical growing areas. The aim of this work was to evaluate the biochemical and agronomical responses of two Vitis vinifera cultivars (Merlot and Cabernet Sauvignon) grown in Caldas, Minas Gerais, Brazil, a new winegrape region. Grapevines were submitted to cluster thinning (0%, 50% and 75% of cluster removal) and trimming treatments (trimmed and untrimmed) imposed at pea size stage. The source-sink alteration by fruit removal and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vitis vinifera; Cluster removal; Canopy management; Ravaz index; Fruit composition.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052010000100004

Biochemical and genetic alterations in the freshwater neotropical fish Prochilodus lineatus after acute exposure to Microcystis aeruginosa
Provedor de dados: 83
Autores: Garcia,Cylene Zambrozi; Martinez,Claudia B. R.
Microcystins are secondary metabolites produced by different species of cyanobacteria, such as Microcystis aeruginosa (MA). In this study, the biochemical and genetic effects of lyophilized MA were evaluated in the neotropical fish Prochilodus lineatus exposed to 1 or 2 mg L-1 lyophilized MA (treated group) or only water (control group) in static toxicity tests for 24 and 96 h. The gills and liver were used in the analysis of biotransformation enzymes and antioxidant defenses, blood and gill cells in genetic analysis and in brain and muscle it was determined the activity of acetylcholinesterase (AChE). The results showed the biotransformation pathway activation due to the increase in hepatic CYP1A and in branchial and hepatic glutathione S-transferase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acetylcholinesterase; Antioxidants; Biotransformation; Cyanotoxin; DNA damage.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300015

Biochemical and morphological aspects of salivary glands of the predator Brontocoris tabidus (Heteroptera: Pentatomidae)
Provedor de dados: 52
Autores: Azevedo,Dihego de Oliveira; Zanuncio,José Cola; Zanuncio Jr.,José Salazar; Martins,Gustavo Ferreira; Marques-Silva,Solange; Sossai,Marcos Franklin; Serrão,José Eduardo.
The aim of this work was to study the feeding habits of the predator Brontocoris tabidus (Heteroptera: Pentatomidae) analyzing the salivary gland complex (SGC). The SGC was dissected and subjected to histological analyses and biochemical assays. Results showed that a pair of bilobed principal salivary glands and one pair of tubular accessory salivary glands form the SGC and different parts of salivary gland synthesizes similar substances. Lipases, a-amylase and trypsin-like enzymes were detected at both lobes of the principal salivary gland. These data together with observations related to the predator's diet suggested that it could be considered an obligate zoophytophagous.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salivary glands; Biological control; Heteroptera; Pentatomidae.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300013

Biochemical and Physiological Changes in Rice Plants Due to the Application of Herbicides1
Provedor de dados: 87
Autores: LANGARO,A.C.; AGOSTINETTO,D.; OLIVEIRA,C.; SILVA,J.D.G.; BRUNO,M.S.
ABSTRACT The application of herbicides, even if selective, can cause biochemical and physiological changes, resulting in oxidative stress. This stress comes from the accumulation of reactive oxygen species produced due to exposure to the herbicide. However, plants have developed defense strategies, which can be enzymatic or non-enzymatic. The objective of this study was to evaluate the morphological and metabolic changes such as photosynthetic parameters, oxidative damage and antioxidant enzyme activity of rice plants after applying herbicides. For this, a study was conducted in a greenhouse and laboratory and the treatments consisted of application of imazapic + imazapyr, quinclorac, bentazon, cyhalofop-butyl, penoxsulan, bispyribac-sodium and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa; Oxidative stress; Lipid peroxidation; Selectivity.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000200277

Biochemical and physiological responses of sugarcane cultivars to soil water deficiencies
Provedor de dados: 63
Autores: Queiroz,Rafaela Josemara Barbosa; Santos,Durvalina Maria Mathias dos; Ferraudo,Antonio Sergio; Carlin,Samira Domingues; Silva,Marcelo de Almeida.
For sugarcane (Saccharum spp.) crops, the effects of an environmental stress, especially water deficiency, may cause severe productivity reduction, inferring negatively in the sugarcane industry. The tolerance of two sugarcane cultivars to a lack of water was made by analyzing the levels of the osmoprotectors, trehalose and free proline, and the biometrical variables of their initial growth. Biochemical and physiological responses of the cultivars, when subjected to water stress, were assayed to determine how these plants tolerate drought. The study was conducted in an acclimatized greenhouse (29.7 ± 4.3ºC and 75.0 ± 10.1% relative humidity) during 100 days and was divided into random blocks using a factorial 2 × 3 × 2 design (sugarcane cultivars × water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Saccharum spp; Drought; Trehalose; Proline; Initial growth.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000400012

Biochemical changes in Salminus brasiliensis due to successive captures and stocking densities - doi: 10.4025/actascibiolsci.v35i1.13055
Provedor de dados: 3
Autores: Braun, Neiva; Universidade Federal de Santa Catarina; Lima, Ronaldo Lima de; Universidade Federal de Santa Catarina; Baldisserotto, Bernardo; Universidade Federal de Santa Maria; Dafre, Alcir Luiz; Universidade Federal de Santa Catarina; Nuñer, Alex Pires de Oliveira; Universidade Federal de Santa Catarina.
This study evaluated the biochemical changes associated to successive captures of Salminus brasiliensis reared at different stocking densities. The experiment was conducted in tanks with a capacity of  1,000 L, connected to a recirculating system with temperature control and continuous aeration. Fish were stocked at densities of 30, 150 and 300 fish m-3 and the successive catches were applied at the end of the experimental period of 80 days. The biochemical changes were evaluated at the end of the trial through the parameters: hematocrit, hemoglobin, glucose and lactate in plasma and Na+, K+ and Cl- and Ca2+ in the gills. The concentration of glucose increased with the increase of stocking density as also registered for lactate concentration, except for...
Palavras-chave: Zoologia; Fisiologia; Bioquímica dourado; Hematocrit; Hemoglobin; Glucose; Lactate; Ions.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/13055

Biochemical characterization of systemic bacteria in bananas, sensitivity to antibiotics and plant phytotoxicity during shoot proliferation
Provedor de dados: 1
Autores: Oliveira, Janiffe Peres de; Scherwinski-Pereira, Jonny Everson.
The objective of this work was to characterize the biochemically systemic bacterial isolated from banana plants, to evaluate the bacterial sensitivity to antibiotics, and to determine the phytotoxicity of banana shoots during in vitro proliferation. Systemic bacteria belonging to the Klebsiella and Aeromonas genera were isolated from the “Maravilha” (FHIA 01 AAAB), “Preciosa” (PV 4285 AAAB) and “Thap Maeo” (AAB) varieties and were then characterized. Tests of shoot sensitivity to antibiotics were performed, and the minimum inhibitory concentration (MIC) and phytotoxic effects of selected antibiotics to plants were determined. Among the 20 antibiotics evaluated, the strains showed sensitivity to cefaclor, cefalexin, cefalotin, nalidixic acid,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências agrárias Musa spp.; Micropropagação; Contaminação; Controle microbiano. Produção de mudas Musa spp.; Micropropagation; Contamination; Endophytic microorganisms; Antimicrobial control.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/27689

Biochemical effect of aquatic environmental pollution on the fishermen health
Provedor de dados: 20
Autores: Saad, A.A.; El-Sekeily, A.M.; Moafy, N.M.; Youssef, A.I.
This study is an attempt to describe a human health risk assessment as a function of recreationl activities in relation to environmental pollution of El-Mex bay through studying the Haemoglobin-adducts (Hb-adducts) of three aromatic amines namely benzidine, alpha and beta naphthylamine as biomarker for exposure as well as biochemical effects of these pollutants on fishermen in this area, beside the determination of these substances in the tissues of 2 types of fish at the same area. The sturdy was conducted on 21 control male subjects and 78 volunteers fishermen, all the 99 subjects were chosen to be smokers. Blood glutathione content was significantly decreased in fislrermen compared with controls. On the other hand glutathione-S-transferase,...
Tipo: Journal Contribution
Palavras-chave: Accumulation; Biological data; Pollution control; Aquatic environment; Health; Pollution control; Biological indicators; Http://aims.fao.org/aos/agrovoc/c_6078; Http://aims.fao.org/aos/agrovoc/c_25632.
Ano: 2004
URL: http://hdl.handle.net/1834/1211

Biochemical Parameters and Histopathological Findings in the Forced Molt Laying Hens
Provedor de dados: 89
Autores: Mert,N; Yildirim,BA.
ABSTRACT The aim of this study was to evaluate the effects of forced molting using biochemical parameters and histopathological findings in laying hens. 36 Hyline W36 strain laying hens, 90 weeks old were chosen for this research. Eight of these chickens were randomly selected and placed in a cage as the control group before the molting program began. All the others 28 chickens were used for the forced molting program. Eight laying hens were slaughtered at the end of the molting program named as molting group. The remaining 20 hens were fed for 37 days, weighted and slaughtered when they reached the maximum egg production (80%) as postmolting group. Then, blood was analyzed for malondialdehyde, glutathione, catalase, glucose, calcium, phosphorus, albumin,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Lipid peroxidation; Molting; Ovarium; Thyroid.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400711

BIOCHEMICAL PROPERTIES IN VASCULAR EPIPHYTES SUBSTRATE FROM A TEMPERATE FOREST OF CHILE
Provedor de dados: 127
Autores: Reyes,Francisco; Silvana,Zanetti; Espinosa,Alejandro; Marysol,Alvear.
The temperate forests of south-central Chile belong to the association Lapageria aextoxiconetum Oberdorfer vegetation, dominated by Aextoxicon punctatum R. et P., elderly and multi-layered, where the strata are emergent, dominant and co-dominant, shrub and herbaceous epiphytes. This work is the first report of measurements of some biochemical properties in samples from vascular epiphytes substrate in temperate forests. We evaluated the most frequent ecological situations: bifurcated trees (BT), dead standing trees (SDT) and medium gap border trees (MGBT), ES were compared with the surrounding soil forest land (SS) as control. The microbial biomass and enzyme activities of substrate were higher in ES of BT, situation probably due to optimal...
Tipo: Journal article
Palavras-chave: Vascular epiphytes substrate; Enzymatic activities; Temperate forest.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912010000200004

Biocide activity of microfiber mops with and without silver after contamination
Provedor de dados: 55
Autores: Lorenzi,Sonia De; Romanini,Letizia; Finzi,Gianfranco; Salvatorelli,Germano.
OBJECTIVE: The purpose of the present research was to compare the residual microbial load in Solo System microfiber mops with silver and in normal microfiber mops without silver to see whether those with the silver prevent bacterial proliferation and spread more effectively during normal cleaning operations. METHODS: Mops with and without silver were experimentally contaminated with suspension of Staphylococcus aureus ATCC 6538. The bioburden was evaluated by a filtering procedure according to UNI EN 1174 after contamination, after washing and after different times of impregnation in an alcohol-base detergent. RESULTS AND DISCUSSION: The results obtained lead to the conclusion that silver microfiber mop was significantly more effective in reducing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Decontamination; Surface-active agents; Products with antimicrobial action; Semi-colon; Infection control.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702011000300003

Biocontrol agents in the management of Meloidogyne incognita in tomato
Provedor de dados: 65
Autores: Silva,Juliana de Oliveira; Santana,Marcus Vinícius; Freire,Leonardo Levorato; Ferreira,Bruno da Silva; Rocha,Mara Rúbia da.
ABSTRACT: Recognized as prominent among the principal pests of tomato crop, the root-knot nematode (Meloidogyne incognita) has generated much study with regards to control methods. This study aimed to assess the efficiency of biological products in decreasing the M. incognita population in tomato. Four experiments were conducted under greenhouse conditions. Two of these experiments had the purpose to determine the efficiency of NemOut™ (Bacillus subtilis + B. licheniformis + Trichoderma longibrachiatum), and the other two to assess the efficiency of other different biological products in M. incognita management. Tomato plants of the cultivar Santa Cruz Kada Giant were inoculated using 2000 eggs and J2 of M. incognita. In the first two experiments doses...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Root-knot nematode; Solanum lycopersicum; Opportunistic fungi; Pochonia chlamydosporia.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001000151

Biocontrol de la marchitez del chile con tres especies de Bacillus y su efecto en el crecimiento y rendimiento
Provedor de dados: 85
Autores: Hernández-Castillo,FD; Lira-Saldivar,RH; Gallegos-Morales,G; Hernández-Suárez,M; Solis-Gaona,S.
Uno de los problemas fitosanitarios más severos que enfrentan los productores de diversos tipos de chile en México y muchas partes del mundo es la marchitez de las plantas causada por diversos patógenos. Estos patógenos se combaten principalmente con agroquímicos sintéticos, provocando así un severo impacto ambiental, toxicidad a los humanos, generación de resistencia a fungicidas, y un incremento en los costos de producción. Debido a esto, surge la necesidad de encontrar opciones más amigables con los ecosistemas. El objetivo de este trabajo fue determinar el efecto de biocontrol de tres cepas bacterianas rizosféricas del género Bacillus en la marchitez del chile. Estas cepas fueron inoculadas inicialmente a la raíz de plántulas de chile, y posteriormente...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonismo; Bioplaguicidas; Rizobacterias; Control biológico; Promotores del crecimiento de plantas.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572014000100007

Biocontrol del moho foliar del tomate Cladosporium fulvum empleando cuatro hongos antagonistas
Provedor de dados: 53
Autores: Torres,Enrique; Iannacone,José; Gomez,Hilda.
El moho foliar Cladosporium fulvum (Cooke 1883) produce una enfermedad que ataca el cultivo de tomate en invernadero en el Perú. Como alternativa al control de este patógeno se probó la eficiencia bajo condiciones in vitro e invernadero de cuatro hongos antagonistas: Hansfordia pulvinata (Berk y Curt 1958), Trichoderma harzianum (Rifai 1969), T. viride (Persoon 1821) y T. virens (Miller, Giddens y Foster 1963). El cultivo y crecimiento de los hongos se realizó en Agar Sabouraud para Trichoderma spp. y en Agar Jugo V8 para H. pulvinata. El bioensayo empleado fue el de placas precolonizadas propuesto por Krauss. En condiciones in vitro se observó que a 24 ºC y 72 h, el crecimiento de T. harzianum fue estadísticamente diferente de las otras tres especies...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cladosporium fulvum; Control biológico; Hansfordia pulvinata; Tomate; Trichoderma harzianum; Trichoderma viride; Trichoderma virens.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052008000100021

Biocontrol of pigeon tick Argas reflexus (Acari: Argasidae) by entomopathogenic fungus Metarhizium Anisopliae (Ascomycota: Hypocreales)
Provedor de dados: 58
Autores: Tavassoli,Mosa; Pourseyed,Seyed Hassan; Ownagh,Abdulghaffar; Bernousi,Iraj; Mardani,Karim.
The pigeon tick Argas reflexus is a pathogen-transmitting soft tick that typically feeds on pigeons, but can also attack humans causing local and systemic reactions. Chemical control is made difficult due to environmental contamination and resistance development. As a result, there is much interest in increasing the role of other strategies like biological control. In this study, the efficacy of three strains (V245, 685 and 715C) of entomopathogenic fungus Metarhizium anisopliae for biological control of three life stages of pigeon tick A. reflexus including eggs, larvae, engorged and unfed adults was investigated under laboratory conditions. Five concentrations of different strains of M. anisopliae ranging from 10³ to 10(7) conidia/ml were used. All...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Argas reflexus; Pigeon tick; Biological control; Entomopathogenic fungus; Metarhizium anisopliae.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400030

Biocontrol of root and crown rot in tomatoes under greenhouse conditions using Trichoderma harzianum and Paenibacillus lentimorbus: Additional effect of solarization
Provedor de dados: 69
Autores: Montealegre,Jaime R; Herrera,Rodrigo; Velásquez,Juan Carlos; Silva,Polyana; Besoaín,Ximena; Pérez,Luz María.
Trichoderma harzianum 650 (Th650) and Paenebacillus lentimorbus 629 (Pl629) selected earlier for their ability to control Rhizoctonia solani, Fusarium solani and F. oxysporum in vitro, were applied alone or combined with solarization (summer assay) and/or with methyl bromide (MeBr) (summer and winter assays) to a soil with a high inoculum level, for the control of tomato root rot caused by the complex F. oxysporum f. sp. lycopersici - Pyrenochaeta lycopersici - Rhizoctonia solani. Evaluations were also performed independently for root damage caused by P. lycopersici, and also for R. solani in the summer assay. MeBr decreased tomato root damage caused by the complex from 88.7% to 21.2% and from 78.4% to 35.7% in the summer and in the winter assay,...
Tipo: Journal article
Palavras-chave: Fusarium oxysporum; Lycopersicon esculentum; Pyrenochaeta lycopersici; Rhizoctonia solani; Solarization.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582005000300004

Biocontrol of seed pathogens and growth promotion of common bean seedlings by Trichoderma harzianum
Provedor de dados: 86
Autores: Carvalho,Daniel Diego Costa; Mello,Sueli Corrêa Marques de; Lobo Júnior,Murillo; Geraldine,Alaerson Maia.
The objective of this work was to evaluate isolates of Trichoderma harzianum regarding biocontrol of common bean seed-borne pathogens, plant growth promotion, and rhizosphere competence. Five isolates of T. harzianum were evaluated and compared with commercial isolate (Ecotrich), Carboxin+Thiram, and an absolute control. Bean seeds of the cultivar Jalo Precoce, contaminated with Aspergillus, Cladosporium, and Sclerotinia sclerotiorum, were microbiolized with antagonists, and seed health tests were carried out. Isolates were evaluated on autoclaved substrate and in field conditions. Ten days after sowing (DAS), plant length was measured. To test rhizosphere competence, isolates were applied in boxes containing autoclaved washed sand, and root colonization...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Sclerotinia sclerotiorum; Biological control; Bioprospection; Seed pathology.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000800006

Biocontrol potential of entomopathogenic nematodes against nut and orchard pests
Provedor de dados: 21
Autores: Kuske, S.; Daniel, Claudia; Wyss, Eric; Sarraquigne, J.; Jermini, M.; Conedera, M.; Grunder, M.
Semi-field and field experiments were carried out to evaluate the biological control potential of entomopathogenic nematodes (EPNs) against grubs in hazelnut, chestnut and cherry orchards. Mortality of hazelnut weevils in interred containers treated with 2.2x106 infective juveniles (IJ) m-2 of Heterorhabditis bacteriophora was 75.4%. H. indica caused 65.2% and S. feltiae 43.3% pest mortality, but numbers were not significantly different from the untreated control (33.4%). Mortality of the chestnut weevil was slightly increased in S. carpocapsae (2x106 IJ m-2) treated containers (44.6%) compared to untreated control containers (39.2%), but differences were either not significant. Soil applications against the European cherry fruit fly did not lead to any...
Tipo: Book chapter
Palavras-chave: Crop health; Quality; Protection.
Ano: 2005
URL: http://orgprints.org/6055/1/Daniel%2D2005%2Dnematodes.pdf

Bioconversion of (+)- and (-)-alpha-pinene to (+)- and (-)-verbenone by plant cell cultures of Psychotria brachyceras and Rauvolfia sellowii
Provedor de dados: 69
Autores: Limberger,Renata Pereira; Aleixo,Adriana Mendes; Fett-Neto,Arthur Germano; Henriques,Amélia T.
This work describes the bioconversion of (-)- and (+)-alpha-pinene (2,6,6-trimethyl-bicyclo[3.1.1]hept-2-ene), targeted at the production of (-)- and (+)-verbenone (4,6,6-trimethyl-bicyclo (3.1.1) hept-3-en-2-one), respectively, using Psychotria brachyceras and Rauvolfia sellowii cell suspension cultures. P. brachyceras showed selectivity to (-)-alpha-pinene with 80.9% conversion (relative integrated area gas chromatography-mass spectrometry (GC-MS)) of (-)-verbenone in 10-day-incubation, whereas R. sellowii was able to convert both pinene enantiomers (37.6% conversion of (-)-verbenone in 7-day-incubation and 32.2% conversion of (+)-verbenone in 10-day-incubation). In both systems trans-verbenol was formed as main product and then slowly biocatalyzed to...
Tipo: Journal article
Palavras-chave: Alpha-pinene; Biotransformation; Verbenol; Verbenone.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582007000400003

Biodegradable coatings on the postharvest of blackberry stored under refrigeration
Provedor de dados: 124
Autores: Oliveira,Dalany Menezes; Rosa,Cassia Ines Lourenzi Franco; Kwiatkowski,Angela; Clemente,Edmar.
Blackberry is a notable fruit due to bioactive compounds. However it has a fragile structure, which reduces the consumption in natura. The aim of this study was to evaluate the physical and chemical quality of the cv. Tupy blackberry fruits, produced in an organic system, and coated with emulsions based on cassava starch and water kefir grains stored under refrigeration. The fruits were divided into three groups: a control (T1) and two treatments with coatings. The coatings used were: cassava starch solution 2.5% (T2); water kefir grains at 20% (T3). The fruits of the three treatments were stored at 10 ± 2 ºC and RH 85 ± 3%, and were evaluated every three days for 12 days period. It was determined: weight loss, firmness, pH, titratable acid, soluble...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blackberry; Cassava starch; Water kefir; Fruits; Conservation.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000200012

Biodegradable microparticulate drug delivery system of diltiazem HCl
Provedor de dados: 60
Autores: Gupta,Manish Kumar; Prakash,Deepak; Mishra,Brahmeshwar.
The efficacy of a drug in a specific application requires the maintenance of appropriate drug blood level concentration during a prolonged period of time. Controlled release delivery is available for many routes of administration and offers many advantages (as microparticles and nanoparticles) over immediate release delivery. These advantages include reduced dosing frequency, better therapeutic control, fewer side effects, and, consequently, these dosage forms are well accepted by patients. Advances in polymer material science, particle engineering design, manufacture, and nanotechnology have led the way to the introduction of several marketed controlled release products and several more are in pre-clinical and clinical development. The objective of this...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diltiazem HCl loaded microparticles/preparation; Diltiazem HCl loaded microparticles/release profile; Diltiazem HCl loaded microparticles/evaluation; Albumin/microparticles; Microparticles batches/diffusion kinetics; Cloridrato de diltiazem/associado a micropartículas; Cloridrato de diltiazem/avaliação do perfil de liberação.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502012000400014

Biodegradable oil-based polymeric coatings on urea fertilizer: N release kinetic transformations of urea in soil
Provedor de dados: 63
Autores: Bortoletto-Santos,Ricardo; Guimarães,Gelton Geraldo Fernandes; Roncato Junior,Vanderlei; Cruz,Diego Fernandes da; Polito,Wagner Luiz; Ribeiro,Caue.
ABSTRACT: Polymer coatings are used to control the rate of release of plant available nutrients from fertilizers as well as to reduce nutrient losses such as ammonia (NH3) volatilization. Although the literature presents several examples of materials used to coat urea, little is known about nitrogen (N) release properties such as the mechanism involved and phenomena (e.g., pore opening) in the polymer coating. Thus, this study investigated urea release from polyurethane (PU) derived from two renewable raw materials (castor oil and soybean oil), to explain how the oil structure and coating microstructure influence release and urea-N dynamics in soil. The results demonstrated that the profile of urea release and the urea-N mineralization in the soil could be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyurethane; Controlled release; Plant nutrition; Soil fertility; Nitrogen.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000101402

Biodegradation kinetics of bromoxynil as a pollution control technology
Provedor de dados: 20
Autores: Askar, A.I.; Ibrahim, G.H.; Osman, K.A.
Nonpoint source (NPS) pollution from agriculture is the leading source of impairment to Survey Rivers and lakes. Pesticides are one of the major NPS pollutants that result from agricultural activities. Among those pesticides, is Bromoxynil (BRMX) which is a widely used herbicide. The present study was carried out to determine the capability of selected biological control agents to degrade BRMX at different incubation periods. Microbial degradation of BRMX at the rate of 100 ppm in pure liquid culture media of either seven isolates of bacteria; Azotobacter chroococcum, Azospirillium barasilense, Klebsilense pneumoneae, Pseudomonas cepacia, Pseudomonas fluoresences, Bacillus subtilis, and Bacillus polymyxa or two isolates of fungi; Trichoderma viride and...
Tipo: Journal Contribution
Palavras-chave: Laboratory Study; Biodegradation; Pollution; Biodegradation; Pollution; Http://aims.fao.org/aos/agrovoc/c_9261; Http://aims.fao.org/aos/agrovoc/c_6077.
Ano: 2007
URL: http://hdl.handle.net/1834/2200

Biodegradation of 2,4 dichlorophenol by Pleurotus ostreatus DSM 1833
Provedor de dados: 52
Autores: Silva,Heloisa Helena Batista da; Schneider,Andréa Lima dos Santos; Wisbeck,Elisabeth; Furlan,Sandra Aparecida.
This work aimed to investigate the capacity of Pleurotus ostreatus DSM 1833 to degrade 2,4-dichlorophenol, important pollutant found in the wastewaters of the paper and cellulose industry. Using a factorial design 2², the concentrations of glucose and 2,4-dichlorophenol varied between 0 and 10g.L-1 and 5 and 30mg.L-1, respectively. The best global biodegradation rate was obtained using 30 mg.L-1 of 2,4- dichlorophenol in the absence of glucose. This culture medium was used for scaling up the process, resulting in a global biodegradation rate of 0.47mg.L-1.h-1. A comparative test between an inoculated medium and an abiotic control demonstrated that 54.1% of 2,4- dichlorophenol degradation could be attributed to the presence of P. ostreatus.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodegradation 2; 4-dichlorophenol paper and cellulose industry Pleurotus ostreatus.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600028

Biodegradation of erythrosin B dye by paramorphic Neurospora crassa 74A
Provedor de dados: 52
Autores: Jesus,Gisele Jane de; Corso,Carlos Renato; Campos,Adriana de; Franchetti,Sandra Mara Martins.
The present work used paramorphic forms of Neurospora crassa 74A to remove erythrosine. The fungus culture was grown in medium containing the dye, as only carbon source for 2 and 90 h of interaction. A washing process using distilled water isolated the cellular mass mycelia was dried for 12 h at 105ºC and transformed in fine powder and analyzed in FTIR. The supernatant was analyzed through spectrophotometer UV-Vis and FTIR. Significant differences in the spectrum of UV-VIS and FTIR were observed between the control and the supernatant and between wall control and the walls colored by red, in FTIR for 2 and 90 h. Some significant bands were modified, suggesting the possibility of enzymatic biodegradation in proportion to the time of contact between the dye...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodegradation; FTIR; Neurospora crassa; Paramorphic; Erythrosin.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200028

Biodesinfección del suelo y uso de Pochonia chlamydosporia en el manejo de Meloidogyne arenaria en el cultivo de guayabo en el oriente de Michoacán.
Provedor de dados: 32
Autores: Torres López, Japhet.
El objetivo de esta investigación fue estudiar la respuesta de los árboles de guayabo al tratamiento con diferentes abonos orgánicos y la incorporación del hongo nematófago Pochonia chlamydosporia y el efecto en la reducción de juveniles (J2) de Meloidogyne arenaria. Se tomaron muestras de suelo infestados con el nematodo en la región guayabera oriente del estado de Michoacán, México. Se obtuvieron dos aislamientos  de Pochonia chlamydosporia var. chlamydosporia provenientes de raíz y suelo. Se obtuvieron in vitro los aislamientos, de raíz que parasitó 89 % huevos de Meloidogyne sp. y el aislamiento de suelo parasitó 83% con una producción de 18 x 107 •g-1 y 11 x 107 •clamidosporas/g-1 respectivamente. Se aplicaron 13.5 kg, 42 kg y 13.5 kg de gallinaza,...
Palavras-chave: Nematodo; Meloidogyne arenaria; Vermicomposta; P. chlamydosporia; Hongo nematófago; Nematode; Vermicompost; Nematophagus fungus; Fitopatología; Maestría.
Ano: 2014
URL: http://hdl.handle.net/10521/2313

Biodistribution of the radiopharmaceutical technetium-99m-sodium phytate in rats after splenectomy
Provedor de dados: 52
Autores: Pereira,Kércia Regina Santos Gomes; Açucena,Maria Kadja Meneses Torres; Villarim Neto,Arthur; Rêgo,Amália Cínthia Meneses; Bernardo-Filho,Mário; Azevedo,Ítalo Medeiros; Araújo Filho,Irami; Medeiros,Aldo Cunha.
Drugs and surgery can interfere with the biodistribution of radiopharmaceuticals and data about the effect of splenectomy on the metabolism of phytate-Tc-99m are scarce. This study aimed at evaluating the interference of splenectomy on phytate-Tc-99m biodistribution and liver function in rats. The SP group rats (n=6) underwent splenectomy. In group C (control) the animals were not operated on. After 15 days, all rats were injected with 0.1mL of Tc-99m-phytate via orbital plexus (0.66MBq). After 30 minutes, liver samples were harvested, weighed and the percentage of radioactivity per gram (%ATI/g) was determined by a Wizard Perkin-Elme gama counter. The ATI%/g in splenectomized rats (0.99±0.02) was significantly higher than in controls (0.4±0.02),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Splenectomy; Sodium phytate; Biodistribution; Liver.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000700033

Biodiversité fonctionnelle en maraîchage biologique : mise en place de bandes florales pour favoriser les punaises prédatrices - compte-rendu d'essai 2009
Provedor de dados: 21
Autores: Lambion, Jérôme; Boisnard, Anne.
Functional biodiversity can be enhanced by settling, in the crops surroundings, specific vegetal species that will increase the occurrence of beneficial insects, by providing shelters, and alternative preys. This technique, also called biological control by habitat manipulation, was adapted in Southern France to control spider mites (Tetranychus urticae), and white flies (Trialeurodes vaporariorum and Bemisia tabaci) using two predatory mirid bugs Macrolophus melanotoma (form. caliginosus) and Dicyphus errans.   Trials started in 2007, with a first step consisting in selecting adapted host-plants for these two mirids. 22 species of host-plants have been sown in strips between greenhouses at the experimental station of GRAB (Avignon – Provence). Germination...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/17122/1/CRbiodiv2009orgprints.pdf

Biodiversité fonctionnelle en maraîchage biologique : mise en place de bandes florales pour favoriser les punaises prédatrices - compte-rendu d'essai 2010
Provedor de dados: 21
Autores: Lambion, Jérôme; De Scey, Louis.
Functional biodiversity can be enhanced by in settling, in the crops surroundings, specific vegetal species that will increase the occurrence of beneficial insects, by providing shelters, and alternative preys. This technique, also called biological control by habitat manipulation, was adapted in Southern France to control spider mites (Tetranychus urticae), and white flies (Trialeurodes vaporariorum and Bemisia tabaci) using two predatory mirid bugs Macrolophus melanotoma (form. caliginosus) and Dicyphus errans.   Trials started in 2007, with a first step consisting in selecting adapted host-plants for these two mirids. 22 species of host-plants have been sown in strips between greenhouses at the experimental station of GRAB (Avignon – Provence)....
Tipo: Report
Palavras-chave: Crop health; Quality; Protection.
Ano: 2010
URL: http://orgprints.org/18216/1/CRbiodiv2010.pdf

Biodiversité fonctionnelle en maraîchage biologique : mise en place de bandes florales pour favoriser les punaises prédatrices - compte-rendu d'essai 2012
Provedor de dados: 21
Autores: Lambion, Jérôme; Cellier, Marion.
Functional biodiversity can be enhanced by in settling, in the crops surroundings, specific vegetal species that will increase the occurrence of beneficial insects, by providing shelters, and alternative preys. This technique, also called biological control by habitat manipulation, was adapted in Southern France to control spider mites (Tetranychus urticae), and white flies (Trialeurodes vaporariorum and Bemisia tabaci) using two predatory mirid bugs Macrolophus pygmaeus and Dicyphus errans.  Trials started in 2007, with a first step consisting in selecting adapted host-plants for these two mirids. 22 species of host-plants have been sown in strips between greenhouses at the experimental station of GRAB (Avignon – Provence). Germination rate, competition...
Tipo: Report
Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2012
URL: http://orgprints.org/22452/1/Lambion_2012_%2322452_rapport.pdf

Biodiversiteit onder glas : Voedsel voor luizenbestrijders
Provedor de dados: 21
Autores: Janmaat, Leen; Bloemhard, C.; Kleppe, Raoul.
In het praktijknetwerk biodiversiteit onder glas is door glastuinders geëxperimenteerd met bloemen in en rond de kas . Al dan niet in combinatie met bankerplanten zoals granen. Deze brochure is gemaakt om kennis over bloemen en biologische bestrijders te geven en specifiek het nut van biodiversiteit . Biodiversiteit geeft ondersteuning aan meerdere natuurlijke bestrijders van bladluizen. Vooral in de paprikateelt vormen bladluizen soms een ware plaag. Het praktijknetwerk heeft kennis opgeleverd die helpt het agro-eco systeem te versterken.
Tipo: Working paper
Palavras-chave: Greenhouses and coverings Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2014
URL: http://orgprints.org/26869/1/2819.pdf

Biodiversités « utile » et « nuisible » dans les agrosystèmes : importance pour la lutte biologique par conservation
Provedor de dados: 21
Autores: RIS, Nicolas; ION-SCOTTA, Michela; AL KHATIB, Fadel; Lambion, Jérôme; Warlop, Francois; Bout, Alexandre.
La lutte biologique par conservation repose sur la mise en place d’aménagements dans ou  autour de parcelles cultivées ou de modifications des pratiques culturales de façon à favoriser  la régulation des ravageurs des cultures par des auxiliaires de lutte biologiques indigènes.  Pour être efficaces, les méthodes de lutte biologique par conservation nécessitent toutefois  plusieurs pré-requis : (i) une bonne compréhension de la biodiversité associée aux  agrosystèmes, (ii) l’optimisation des échanges entre la culture et les autres composantes de  l’agrosystème, (iii) la prise en compte d’éventuels effets non-intentionnels associés aux  auxiliaires favorisés. Ces trois points sont discutés dans le cadre d’un programme en cours  dont l’objectif est d’évaluer...
Tipo: Journal paper
Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2014
URL: http://orgprints.org/26837/19/Ris_2014_MSEF_Vol9.pdf

Biodiversity and economic incentives in agriculture : integrating bird fauna values into decision-making
Provedor de dados: 21
Autores: Miettinen, Antti; Huhtala, Anni.
Our optimal control model identifies economic reasons as to why several farmland bird populations have dramatically declined in modern agricultural landscapes. By integrating bird fauna values into decision-making on cereal crop choice, herbicide use and hunting bag size, we derive those economic instruments needed for enhancing biodiversity on farmland and reversing the decline of grey partridge (Perdix perdix) populations. Based on the Finnish data available, we illustrate how the optimal acreage subsidy for organically-grown rye areas, the herbicide tax rate and the grey partridge hunting licence fee could be estimated in monetary terms. The procedure to derive and value the first-best policy instruments is applicable for various components of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Biodiversity and ecosystem services.
Ano: 2005
URL: http://orgprints.org/8614/1/bioecon.pdf

Biodiversity Conservation in Southeast Asian Timber Concessions: a Critical Evaluation of Policy Mechanisms and Guidelines
Provedor de dados: 7
Autores: Dennis, Rona A; Center for International Forestry Research; rdennis@hn.ozemail.com.au; Meijaard, Erik; The Nature Conservancy; Australian National University; emeijaard@TNC.ORG; Gustafsson, Lena; Swedish University of Agricultural Science; Lena.Gustafsson@nvb.slu.se.
Tropical deforestation is leading to a loss of economically productive timber concessions, as well as areas with important environmental or socio-cultural values. To counteract this threat in Southeast Asia, sustainable forest management (SFM) practices are becoming increasingly important. We assess the tools and guidelines that have been developed to promote SFM and the progress that has been made in Southeast Asia toward better logging practices. We specifically focus on practices relevant to biodiversity issues. Various regional or national mechanisms now inform governments and the timber industry about methods to reduce the impact of production forestry on wildlife and the forest environment. However, so many guidelines have been produced that it has...
Tipo: Peer-Reviewed Reports
Palavras-chave: Biodiversity conservation; Certification; Logging  Southeast Asia; Sustainable forest management; Timber production.
Ano: 2008

Biodiversity enhancement and utilization - Pest control in brassicas
Provedor de dados: 21
Autores: Luka, Henryk; Barloggio, Guendalina.
In cabbage fields parasitoid wasps (Hymenoptera) use the eggs or larvae of pest butterflies and moths for their own reproduction, ultimately killing them, playing an important role in the biological plant protection strategy. An efficient way to promote this parasitoids in the crop field is to provide them with flower strips as well as companion plants, e.g. cornflower (Centaurea cyanus), that will provide them with food (nectar) and shelter. Between 2007 and 2010 we conducted experiments to test the olfactory attractiveness of different flowers as well as the influence of their nectar on the regulation of the cabbage moth (Mamestra brassicae) as well as on the lifespan and parasitation performance of its antagonists (egg and larval parasitoids).
Tipo: Journal paper
Palavras-chave: Vegetables Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2015
URL: http://orgprints.org/36418/1/Luka_Barloggio_2015-ActaFytotechnZootechn-Vol18-p53-55.pdf

Biodiversity in Organic Horticulture – an Indicator for Sustainability and a Tool for Pest Management
Provedor de dados: 21
Autores: Wyss, Eric; Pfiffner, Lukas.
Conservation and enhancement of biodiversity are mentioned in the International Federation of Organic Agriculture Movements (IFOAM) standards and in all national guidelines as essential pillars for organic agriculture. Recent reviews show that organic agriculture enhances the number of species and the abundance of many taxa (plants, birds, mammals, earthworms, arthropods, soil microbes), compared with conventional agriculture. Considering the benefits for sustainability, a multi-criteria analysis shows that organic agriculture not only improves biodiversity but also has positive effects on soil (e.g., soil erosion, structure, biological activity), water (e.g., no pesticide residues) and climatic factors (e.g., air pollution). In organic horticulture,...
Tipo: Journal paper
Palavras-chave: Vegetables; Biodiversity and ecosystem services; Fruit and berries.
Ano: 2008
URL: http://orgprints.org/17807/1/wyss-pfiffner-2008-actahort.pdf

Biodiversity in Organic Horticulture – an Indicator for Sustainability and a Tool for Pest Management
Provedor de dados: 21
Autores: Wyss, Eric; Pfiffner, Lukas.
Conservation and enhancement of biodiversity are mentioned in the International Federation of Organic Agriculture Movements (IFOAM) standards and in all national guidelines as essential pillars for organic agriculture. Recent reviews show that organic agriculture enhances the number of species and the abundance of many taxa (plants, birds, mammals, earthworms, arthropods, soil microbes), compared with conventional agriculture. Considering the benefits for sustainability, a multi-criteria analysis shows that organic agriculture not only improves biodiversity but also has positive effects on soil (e.g., soil erosion, structure, biological activity), water (e.g., no pesticide residues) and climatic factors (e.g., air pollution). In organic horticulture,...
Tipo: Journal paper
Palavras-chave: Crop husbandry; Biodiversity and ecosystem services.
Ano: 2008
URL: http://orgprints.org/16986/1/WyssPfiffner_2008_ActaHort767.pdf

Biodiversity of Antimicrobial-Producing Actinomycetes Strains Isolated from Dry Dipterocarp Forest Soil in Northeast Thailand
Provedor de dados: 52
Autores: Chanthasena,Panjamaphon; Nantapong,Nawarat.
The increasing use of antibiotics has led to the development of drug-resistant microorganisms. The emergence of resistant strains has compromised the treatment and control of infectious diseases. As a result, the search and development of a novel class of antibiotic drugs are required. Actinomycetes have been recognized as a richest source of secondary metabolites including antibiotics. The aim of this study was to investigate the diversity of antibiotic-producing soil Actinomycetes from dry dipterocarp forest in Northeast of Thailand. The soil from this area has been known for its poor in nutrients and highly acidic with pH values around 4.5. In such a harsh condition, soil-inhabiting Actinomycetes elevate their protective mechanisms by inducing the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil bacteria; Antibiotics; Actinomycetes; Streptomyces.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100417

Bioecologia e controle da broca pequena do tomateiro neoleucinodes elegantalis.
Provedor de dados: 14
Autores: CARNEIRO, J. da S.; HAJI, F. N. P.; SANTOS, F. de A. M.
A cultura do tomate na Serra da Ibiapaba, no Estado do Ceará, é considerada uma das atividades agrícolas mais importantes e geradora de divisas para esta região. Entretanto, apresenta como uma das pragas chave a broca pequena, Neoleucinodes elegantalis (Guen.) (Lepidoptera: Pyralidae). Essa praga ocorre geralmente em elevadas infestações, ocasionando danos à produção em até 90%, pela destruição e apodrecimento dos frutos, levando os produtores a realizarem até duas pulverizações por semana. Sua ocorrência foi constatada no Brasil, em 1922, no Ceará, e em 1939, em São Paulo, encontrando-se atualmente disseminada em quase todas as regiões produtoras de tomate do Brasil. Na região Nordeste, a sua ocorrência é generalizada, exceto no Submédio do Vale do São...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Bioecologia; Controle; Elegantalis; Pest insect; Biology; Bioecology; Control; Tomate; Inseto; Controle biológico; Biologia; Ecologia; Lycopersicon Esculentum; Praga; Biological control; Neoleucinodes; Ecology; Tomatoes.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/151076

Bioecologia e controle da broca pequena do tomateiro Neoleucinodes elegantalis.
Provedor de dados: 14
Autores: CARNEIRO, J. da S.; HAJI, F. N. P.; SANTOS, F. de A. M. dos.
A cultura do tomate na Serra da Ibiapaba, no Estado do Ceará, é considerada uma das atividades agrícolas mais importantes e geradora de divisas para esta região. Entretanto, apresenta como uma das pragas chave a broca pequena, Neoleucinodes elegantalis (Guen.) (Lepidoptera: Pyralidae). Essa praga ocorre geralmente em elevadas infestações, ocasionando danos à produção em até 90%, pela destruição e apodrecimento dos frutos, levando os produtores a realizarem até duas pulverizações por semana. Sua ocorrência foi constatada no Brasil, em 1922, no Ceará, e em 1939, em São Paulo, encontrando-se atualmente disseminada em quase todas as regiões produtoras de tomate do Brasil. Na região Nordeste, a sua ocorrência é generalizada, exceto no Submédio do Vale do São...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Controle; Bioecologia; Broca pequena; Pest insects.; Lycopersicon Esculentum; Neoleucinodes Elegantalis; Praga; Tomate.; Insect control; Tomatoes.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/63866

Bioecologia e controle de Spodoptera eridania (Lepidoptera: Noctuidae) em videira no Rio Grande do Sul.
Provedor de dados: 14
Autores: EFROM, C. F. S.; BORTOLI, L. C.; BERTIN, A.; SPECHT, A.; BOTTON, M.
Este comunicado técnico tem como objetivo disponibilizar informações sobre a identificação e a bioecologia de Spodoptera eridania na cultura da videira, apresentando as estratégias para o seu controle no Estado do Rio Grande do Sul.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Videira; Bioecologia; Uva; Viticultura; Praga de planta; Controle integrado; Controle químico; Controle biológico; Lagarta; Spodoptera eridania; Grapes; Viticulture; Pest control; Biological control; Plant pests; Insect larvae.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/991754

Bio-ecologia, importância médicoveterinária e controle de carrapatos, com ênfase no carrapato dos bovinos, Rhipicephalus (Boophilus) microplus.
Provedor de dados: 14
Autores: BRITO, L. G.; SILVA NETO, F. G. da; OLIVEIRA, M. C. de S.; BARBIERI, F. da S.
Características gerais dos carrapatos; Biologia de Ixodidae e Argasidae; Ciclo de um hospedeiro; Ciclo de dois hospedeiros; Ciclo de três hospedeiros; Epidemiologia de ixodídeos em ambientes tropicais e equatoriais; Importância médico-veterinária dos carrapatos; Transmissão de patologias por carrapatos; Carrapatos como causadores de doenças; Carrapatos como transmissores de vírus; Carrapatos como transmissores de rickettsias; Carrapatos como vetores de bactérias; Carrapatos como vetores de fungos; Carrapatos como vetores de protozoários; Controle de carrapatos; Controle de Rhipicephalus (Boophilus) microplus; Desenvolvimento da resistência de cepas de carrapatos aos grupos acaricidas; Carrapaticidas de contato; Carrapaticidas sistêmicos; Manejo de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Boecologia; Bioecology.; Bovino; Parasito de Animal; Carrapaticida.; Controle Químico; Carrapato; Ticks; Chemical control.; Rhipicephalus microplus.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/710607

Bioecología y control del barrenador de las anonáceas (Bephratelloides cubensis ASHMEAD)
Provedor de dados: 32
Autores: Hernández Fuentes, Luis Martín.
La guanábana tiene un gran futuro en el mercado mexicano y de  exportación; sin embargo, su producción se ve afectada por el ataque de plagas  y enfermedades. B. cubensis es una de las plagas que causan mayores pérdidas  económicas al cultivo de guanábana en México. Se han observado 60% de  frutos dañados y de 5 a 50 semillas con daño por fruto, lo cual ocasiona  pérdidas en la producción de hasta 25%. En Nayarit, se han determinado, en  algunos casos, 100% de los frutos atacados. Los productores de la región,  realizan aplicaciones de plaguicidas sin lograr un control efectivo. Con base en  lo anterior, se plantearon los siguientes objetivos: determinar el ciclo de vida y  hábitos de B. cubensis en guanábana en condiciones de campo y evaluación de...
Tipo: Tesis
Palavras-chave: Bephratelloides cubensis; Guanábana; Biología; Control; Doctorado; Entomología y Acarología; Soursop; Biology; Control.
Ano: 2008
URL: http://hdl.handle.net/10521/1470

Bio-Economic and Qualitative Impact of Reduced Herbicide use in Direct Seeded Fine Rice Through Multipurpose Tree Water Extracts
Provedor de dados: 117
Autores: Khaliq,Abdul; Matloob,Amar; Riaz,Yasir.
Weed control program should be environmentally benign and cost-effective so that reduced herbicide use can help meet these goals. Field trials were conducted to assess the bio-economic and qualitative impact of reduced doses (25 and 50% of label dose) of a postemergence pyrimidinyloxybenzoic acid herbicide (bispyribac-sodium) applied alone or in combination with multipurpose tree (eucalyptus Eucalyptus camaldulensis Dehnh., mango Mangifera indica L., and mulberry Morus alba L.) water extracts in direct seeded rice (Oryza sativa L.) fields. The label dose of bispyribac-sodium and penoxsulam along with weed control were included for comparison. Tank mixing of multipurpose tree water extracts with reduced herbicide doses accounted for &gt; 55% suppression in...
Tipo: Journal article
Palavras-chave: Reduced dose; Weed suppression; Yield; Kernel quality; Oryza sativa.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000300008

BIO-ECONOMIC DEVELOPMENT OF FLOODPLAINS:  FARMING VERSUS FISHING IN BANGLADESH
Provedor de dados: 31
Autores: Islam,   Mursaleena; Braden,   John B.
This paper explores the linkages of environment and economic development in the floodplain of large rivers.  There is considerable evidence that even the most vital floodplains in the world are not being managed efficiently and both economic and ecological factors need to be considered for effective management.  Floodplain management policies in Bangladesh emphasize structural changes to enhance agricultural production.  However, these structural changes reduce fisheries production, where the fishery is an important natural resource sector and a source of subsistence for the rural poor.  We develop a model where net returns to agriculture and fisheries are jointly maximized taking into account the effect of flooding depth and timing on production.  Results...
Tipo: Conference Paper or Presentation
Palavras-chave: Community/Rural/Urban Development.
Ano: 2003
URL: http://purl.umn.edu/22084

Bioeconomic evaluation of allelopathic crop leachates integrated with reduced doses of herbicide for horse purslane management in maize under field conditions
Provedor de dados: 87
Autores: N. Mushtaq,Muhammad; I. Hashmi,Muhammad; Tariq,Tabinda; Matloob,Amar; Hussain,Safdar; A. Cheema,Zahid.
Abstract  Background:  Continuous use of commercial herbicides is posing a severe threat to environment and creating herbicide resistant weeds. Allelopathy offers a promising alternative to commercial herbicides for sustainable weed management. The farmers are highly concerned with maximum yield as well as cost of the weed control techniques.  Objective:  To investigate economic and weed control efficiency of allelopathic crop water leachates mixed with lower rates of herbicide.  Methods:  Rapeseed (Brassica napus L.), sunflower (Helianthus annuus L.) and sorghum (Sorghum bicolor L.) crop leachates (18 L ha-1 each) tank mixed with lower doses (25, 33 and 50% of recommended dose) of S-metolachlor+atrazine were sprayed as pre-emergence for horse purslane...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Bioeconomic; Integrated weed management; Marginal analysis; Trianthema portulacastrum; Zea mays.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100317

Bio-economic management strategy evaluation of deepwater stocks using the FLBEIA model
Provedor de dados: 5
Autores: Garcia, Dorleta; Urtizberea, Agurtzane; Diez, Guzman; Gil, Juan; Marchal, Paul.
Deepwater fish are characterized by long lifespans, late maturity and low productivity. This implies slow recovery from low biomass levels and it is, therefore, important to manage these stocks correctly to avoid overfishing. However, these stocks are generally data poor, which it makes difficult to apply quantitative assessment models on which to base their management. The management strategy evaluation (MSE) approach consists in evaluating the performance of management strategies by simulation before their implementation. In the evaluation, the main sources of uncertainty in a fishery system and its management process should be taken into account in order to find robust management strategies. Thus, the MSE approach is relevant to the management of...
Tipo: Text
Palavras-chave: Bio-economic modelling; Deep-sea fisheries; Harvest control rules; Management strategy evaluation; Norway; Bay of Biscay; Gibraltar; Atlantic Ocean.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00176/28760/27231.pdf

Bioeconomic Modeling of the Invasive Aquatic Plants Hydrilla verticillata (hydrilla), Eichhornia crassipes (water hyacinth), and Pistia stratiotes (water lettuce) and their impacts on angler effort on Florida lakes
Provedor de dados: 31
Autores: Adams,   Damian C.; Lee,   Donna J.
The invasive aquatic plants Hydrilla verticillata (hydrilla), Eichhornia crassipes (water hyacinth), and Pistia stratiotes (water lettuce) have the potential to negatively impact recreational use of Florida lakes if consistent, adequate control expenditures are not made. In the mid-1990's, Florida significantly reduced its spending on invasive aquatic plant control measures, which resulted in a significant increase in needed control expenditures in subsequent years. This paper attempts to formalize a relationship between coverage of these invasive aquatic plants and angler effort on Florida lakes using data on 38 lakes over 20 years. Estimated regression coefficients are used to simulate control alternatives, and expenditure cost-benefit comparisons are...
Tipo: Conference Paper or Presentation
Palavras-chave: Hydrilla; Water hyacinth; Water lettuce; Bioeconomic; Invasive; Control; Resource /Energy Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/19146

Bioeffects of albumin-encapsulated microbubbles and real-time myocardial contrast echocardiography in an experimental canine model
Provedor de dados: 56
Autores: Dourado,P.M.M.; Tsutsui,J.M.; Santos,J.M.T.; Aiello,V.D.; Mathias Jr.,W.; Ramires,A.F.; da Luz,P.L.; Chagas,A.C.P.
Myocardial contrast echocardiography has been used for assessing myocardial perfusion. Some concerns regarding its safety still remain, mainly regarding the induction of microvascular alterations. We sought to determine the bioeffects of microbubbles and real-time myocardial contrast echocardiography (RTMCE) in a closed-chest canine model. Eighteen mongrel dogs were randomly assigned to two groups. Nine were submitted to continuous intravenous infusion of perfluorocarbon-exposed sonicated dextrose albumin (PESDA) plus continuous imaging using power pulse inversion RTMCE for 180 min, associated with manually deflagrated high-mechanical index impulses. The control group consisted of 3 dogs submitted to continuous imaging using RTMCE without PESDA, 3 dogs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microbubbles; Ultrasound; Bioeffects; Myocardial contrast echocardiography.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000600017

BIOEFFICACY OF A COMMON WEED Datura metel AGAINST Colletotrichum gloeosporioides
Provedor de dados: 87
Autores: KARIM,M.; JABEEN,K.; IQBAL,S.; JAVAID,A.
ABSTRACT Mango (Mangifera indica) is one of the most important trees grown mainly in the tropical and subtropical countries. Anthracnose disease caused by Colletotrichum gloeosporioides, is the most damaging disease causing reduction of flower set and yield losses in mango. The present study was designed to evaluate antifungal activity of Datura metel extracts against C. gloeosporioides. Extracts (1% to 3%) of different parts of D. metel viz. leaves, seeds and roots were assessed for their antifungal potential. Methanolic seed extract of D. metel depicted the highest antifungal potential against the test fungus. All the applied concentrations effectively reduced growth of the test fungus. However, 1.5% conc. of methanolic seeds extract showed maximum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal; GC-MS; Methanolic extracts; Phytochemical analysis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100244

Bioefficacy of flindersine against Helicoverpa armigera Hübner, Spodoptera litura Fabricius, Anopheles stephensis Liston. and Culex quinquefasciatus Say.
Provedor de dados: 52
Autores: Duraipandiyan,Veeramuthu; Baskar,Kathirvelu; Muthu,Chelliah; Ignacimuthu,Savarimuthu; Al-Dhabi,Naif Abdullah.
Flindersine, an alkaloid isolated from Toddalia asiatica, was evaluated for their antifeedant, larvicidal and growth inhibitory activities against Helicoverpa armigera, Spodoptera litura and larvicidal activity against vector mosquitoes Anopheles stephensi and Culex quinquefasciatus. For this, leaf disc no choice method was used for agricultural pests; larvicidal activity was tested on second and fourth instar larvae for mosquitoes at different concentrations. Flindersine showed antifeedant, larvicidal and growth inhibitory activities against H. armigera and S. litura and larvicidal activity against vector mosquitoes An. stephensi and Cx. quinquefasciatus. It showed high regression (R2) values of 0.91 and 0.87 against H. armigera and S. litura,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flindersine; Adult emergence; Antifeedant; Growth inhibitiory; Larvicidal.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000400595

BIOENSAYOS DE FITOTOXICIDAD DE RESIDUOS ORGÁNICOS EN LECHUGA Y BALLICA ANUAL REALIZADOS EN UN SUELO ALFISOL DEGRADADO
Provedor de dados: 127
Autores: Celis Hidalgo,José; Sandoval Estrada,Marco; Briones Luengo,Mario.
El propósito de este estudio fue evaluar la fitotoxicidad de distintos residuos orgánicos. Se midió el índice de germinación (IG), la longitud de radícula/hipocotilo de la lechuga y la biomasa de ballica anual en un suelo granítico degradado (Alfisol). Los residuos orgánicos fueron: lodo municipal (LM), lodo de piscicultura salmonídea terrestre (LPT), y lodo de salmonicultura lacustre (LSL). Cinco dosis de estos materiales (lodo/suelo) fueron preparadas: 25, 50, 75,100 y 1501 ha-1. Un control sin adición también fue incluido. Los resultados indicaron que el IG, así como la longitud de radícula y del hipocotilo de la lechuga no se afectaron significativamente cuando la tasa lodo/suelo varió entre 25 a 1001 ha-1. Con respecto a ballica anual, todos los...
Tipo: Journal article
Palavras-chave: Residuos de salmonicultura; Lodo urbano; Fertilizante orgánico; Biosólidos.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912007000300005

Bioethology differences between Orius laevigatus and Orius niger (Hemiptera : Anthocoridae) in Mediterranean region.
Provedor de dados: 21
Autores: BRANKO, Djuric.
Several characteristics of Orius laevigatus (Fieber) and Orius niger (Wollf) (Hemiptera: Anthocoridae) are investigated in the laboratory and in the vineyards. Indigenous O.laevigatus, O. niger and O.laevigatus from biofactory are compared as for the following characteristics: morphological differences among these three insects, life duration, length of the oviposition period, number of laid eggs, number of hatched eggs, percentage of hatched eggs, population dynamics of O.laevigatus and O.niger in the region of Apulia, population density of Frankliniella occidentalis and Orius spp. in the vineyard at flowering, presence of Orius spp. in South Bosnia and Herzegovina. Indigenous Orius laevigatus has a longer life than Orius laevigatus from biofactory and...
Tipo: Thesis
Palavras-chave: Crop health; Quality; Protection Viticulture.
Ano: 2003
URL: http://orgprints.org/6656/1/BrankoDjuric03.pdf

Bioética en experimentación animal para validar usos de plantas medicinales en el Laboratorio Central de Farmacología
Provedor de dados: 98
Autores: Victoria Amador,María del Carmen; Morón Rodríguez,Francisco J.
INTRODUCCIÓN: la bioética de la investigación con animales de laboratorio ha tenido importantes avances internacionalmente y en Cuba. OBJETIVOS: actualizar el estado de la ética de la investigación en animales y su desarrollo en Cuba y el laboratorio de investigaciones. MÉTODOS: se realizó una búsqueda en las principales bases de datos de bibliografía científica biomédica disponibles (BVS-BIREME, PubMed, LILACS, SciELO, EBSCO) con las palabras clave bioethics and animals and experimental, así como en Google con la misma estrategia. La información fue analizada para determinar si podía emplearse para los objetivos del presente trabajo. RESULTADOS: se reseñaron los conceptos de ética y bioética, el uso de animales como fuente de conocimiento y como modelo...
Tipo: Journal article
Palavras-chave: Bioética; Animales de experimentación; Animales de laboratorio.
Ano: 2010
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47962010000300008

Biofertilizante agrobio: Uma alternativa no controle da mancha bacteriana em mudas de pimentão (Capsicum annuum l.)
Provedor de dados: 21
Autores: Deleito, Cláudia Sayão Ramirez; Carmo, Margarida Goréte Ferreira do; Fernandes, Maria do Carmo de Araújo; Abboud, Antônio Carlos de Souza.
Agrobio é um biofertilizante líquido fabricado à base de esterco bovino, água, melaço e sais minerais, que são submetidos a um processo de fermentação à temperatura ambiente por 56 dias em recipientes abertos. Este produto tem sido largamente utilizado com sucesso por agricultores orgânicos e convencionais em todo o estado do Rio de Janeiro, no controle de várias enfermidades vegetais em diferentes culturas. Em bioensaios realizados em casa de vegetação, observou-se uma ação bacteriostática equivalente a de produtos químicos comerciais contra Xanthomonas campestris pv. vesicatoria em mudas de pimentão (Capsicum annuum L.), numa concentração de 5%. Nos bioensaios in vitro, onde foram testadas as concentrações de 2, 5 10 e 50% do Agrobio comercial,...
Tipo: Journal paper
Palavras-chave: Vegetables.
Ano: 2004
URL: http://orgprints.org/20063/1/Deleito_biofertilizante.pdf

Biofertilzers with natural phosphate, sulphur and Acidithiobacillus in a siol with low available-P
Provedor de dados: 63
Autores: Stamford,Newton Pereira; Santos,Patrícia Ribeiro dos; Moura,Adriana Muniz Mendes Freire de; Santos,Carolina Etiene de Rosália e Silva; Freitas,Ana Dolores Santiago de.
The production of mineral fertilizers is a expensive process, since it requires high energy consumption, and cannot be produced by small farmers. Laboratory assays were conducted to produce P-biofertilizers from natural phosphate (B5, B10, B15, B20), applying sulphur at different rates (5; 10; 15 and 20%) inoculated with Acidithiobacillus (S*) and testing increasing periods of incubation. A greenhouse experiment was carried out to evaluate the effect of the biofertilizers in a soil with low available P (Typic Fragiudult) from the "Zona da Mata" of Pernambuco State, grown with yam bean (Pachyrhizus erosus) in two consecutive harvests. The treatments were: Natural Phosphate (NP); biofertilizers produced in laboratory (B5, B10, B15, B20) with sulphur and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pachyrhizus erosus; P uptake; Phosphorus fertilization; Yam bean.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000400024

Biofilter efficiency of Eichhornia crassipes in wastewater treatment of fish farming in Amazonia: Eficiencia de Eichhornia crassipes como biofiltro en el tratamiento de aguas residuales de la piscicultura en el Amazonas
Provedor de dados: 85
Autores: Rubim,MAL; Isolino Sampaio,PR; Parolin,P.
Fish is a very important part of the human diet in Amazonia. Near the growing cities, fish populations and individual size have decreased over the past decades. Alternatives to traditional and industrial fishing arise, including fish farming. Strategies to minimize the impact of fish farms on the environment are needed to have a regular and healthy fsh supply. This is to avoid a reduction of biodiversity, a depletion of natural resources, and/or the induction of significant changes in the structure and functioning of adjacent ecosystems. Very little research has been performed on management of efluents as to maintain the quality of water resources. The present study aimed at testing the efficiency of the Amazonian aquatic macrophyte Eichhornia crassipes as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Amazon; Effluent; Fish farming; Biofilters; Aquatic macrophytes; Water hyacinth.
Ano: 2015
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000100031

Biofiltration, growth and body composition of oyster Crassostrea rhizophorae in effluents from shrimp Litopenaeus vannamei1
Provedor de dados: 124
Autores: Azevedo,Rafael Vieira de; Tonini,William Cristiane Telles; Santos,Marcel José Martins dos; Braga,Luís Gustavo Tavares.
The objective of this study was to use oyster as biofilter to improve the quality of effluent from shrimp farming and to assess its growth performance and body composition. It was distributed 1,080 oysters into lanterns in fiberglass tanks (170 L) in a completely randomized design with three treatments (0, 60 and 120 oysters) and six replicates. It was used the effluent from the sedimentation tank. It was measured weekly: temperature, salinity, dissolved oxygen and pH, and it was analyzed ammonia-N, nitrite-N, nitrate-N, orthophosphate-P, suspended solids and chlorophyll-α of the input effluent. The control tanks (without oysters) were more efficient at removing ammonia-N, nitrite-N, nitrate-N and orthophosphate-P. The tanks containing oysters were more...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Integrated system; Performance.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902015000100193

Biofloc technology applied to rear shrimp Litopenaeus Stylirostris broodstock: An integrated and development research project in New Caledonia and French Polynesia
Provedor de dados: 5
Autores: Chim, Liet; Cardona, Emilie; Lorgeoux, Benedicte; Gueguen, Yannick; Saulnier, Denis; Goguenheim, Jean; Wantiez, Laurent; Cahu, Chantal.
Shrimp farming in New-Caledonia faces up to difficulties. A fluctuating quality of broodstock prevents sustainable production of larvae in quantity and quality. The traditional extensive rearing method of broodstock in outdoor earthen ponds used in New Caledonia raises several issues: poor water quality control and biosecurity. Therefore it is fundamental to modify the broodstock culture strategy in order to achieve an easier water quality management and maximal biosecurity. Biofloc technology (BFT) offers easier water quality management, higher natural productivity, higher level of biosecurity, and could be a good alternative. Since 2011 a R&amp;D program started under the supervision of IFREMER in New Caledonia and French Polynesia in order to study and...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00250/36084/34635.pdf

Biofouling development and its effect on growth and reproduction of the farmed pearl oyster Pinctada margaritifera
Provedor de dados: 5
Autores: Lacoste, Elise; Le Moullac, Gilles; Levy, Peva; Gueguen, Yannick; Gaertner-mazouni, Nabila.
In bivalve aquaculture, dominant fouling organisms are filter feeders which can compete for food with reared bivalves, sometimes causing mortality or reducing their growth rate. This study investigated the effect of biofouling on the farmed pearl oyster Pinctada margaritifera in two lagoons of French Polynesia. Survival, growth and reproduction of 2 year-old pearl oysters were monitored with regular sampling schedules, from the initial stage of colonization up to 20 months of biofouling accumulation. Control groups of pearl oysters were kept free of biofouling as is the current practice in pearl farms. After more than a year of monitoring, no significant difference was recorded in shell growth rate between pearl oysters reared with epibionts and the...
Tipo: Text
Palavras-chave: Pearl oyster culture; Pinctada margaritifera; Biofouling; Growth; Reproduction.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00201/31188/29587.pdf

Biofumigation - an alternative method to control late blight in organic potato production?
Provedor de dados: 21
Autores: Grabendorfer, Sebastian.
To control late blight in organic potato production currently copper fungicides are used. Due to problematic aspects of copper fungicides, it's necessary to develop alternative methods to control Phytophthora infestans. In this context also the use of cover crops and particularly the method biofumigation are discussed. Because there's barely literature about the effectiveness of biofumgiation in organic potato production, the method is evaluated with laboratory experiments and field trials. Brassicacea have the potential to inhibit in vitro the growth of P. infestans, but in an one year field experiment it wasn't possible to observe positive effects to late blight infestation and tuber yields.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions Crop health; Quality; Protection Root crops.
Ano: 2014
URL: http://orgprints.org/23723/1/23723_MM.pdf

Biofumigation auch gegen pflanzenparasitische Nematoden?
Provedor de dados: 21
Autores: Eder, Reinhard; Roth, Irma; Zinsstag, Christof; Koch, Walter.
Biofumigation refers to a biological method to reduce diseases, pests and weeds in  the soil which is suitable for organic production systems. Cruciferous plants with a  high level of Glucosinolates are grown for about two months in the field. To achieve  the biofumigation effect, the intercrop is mulched during full bloom and rapidly  incorporated into the soil. The Gluconisolates are converted during biological  degradation into volatile substances toxic for certain diseases or pests. Nematodes  are also sensitive to these substances and are reduced thereby. Besides using the  incorporation of fresh plant material, pellets made of dried cruciferous plants and sold  as fertilizer might be an alternative approach for nematode control. The pellets are...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Crop husbandry.
Ano: 2009
URL: http://orgprints.org/14212/1/Eder_14212.pdf

Biofumigation im ökologischen Kartoffelanbau: Effekte auf Knollenertrag, Blattnekrosen und Unkrautwachstum
Provedor de dados: 21
Autores: Grabendorfer, Sebastian.
Biofumigation is discussed as a potential method of securing tuber yields in organic potato production. Brassicaceae with high contents of glucosinolates are cultivated as cover crops and incorporated into the soil to support the development of isothiocyanates. A pot experiment with soil from two biofumigation field trials was conducted to test biofumigation effects on potato tuber yields, potato leaf necrosis and weed growth. In the field trials different cover crops (Vicia sativa, Raphanus sativus and Brassica rapa) and a control without any cover crop were incorporated into the soil in autumn or spring. Before incorporation in spring soil of the field plots was taken to pots together with one potato tuber. Common cover crop effects could be observed,...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions; Root crops.
Ano: 2015
URL: http://orgprints.org/27028/1/27028_grabendorfer.pdf

Biofumigation Studies by Using Raphanus sativus and Eruca sativa as a Winter Cycle Crops to Control Root-knot Nematodes
Provedor de dados: 52
Autores: Aydınlı,Gökhan; Mennan,Sevilhan.
ABSTRACT An experiment was conducted to search the efficacy of radish (Raphanus sativus) and arugula (Eruca sativa) for the control of Meloidogyne arenaria in the commercial tomato growing greenhouse. R. sativus and E. sativa were used as winter cycle crops and lettuce as a susceptible crop and 4 months after sowing, host level of the treatment plants was evaluated. All parts of R. sativus and E. sativa were incorporated except lettuce was covered with transparent polyethylene film for 4 weeks. R. sativus and E. sativa had not any root galls, and these plants caused reducing number of juveniles in the soil, in contrast to control and lettuce plots before growing tomato. Gall index and egg masses were significantly decreased on tomatoes in plots of applied...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meloidogyne arenaria; Raphanus sativus; Eruca sativa; Biofumigation; Crop yield.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100205

Biofumigation zur Bekämpfung von Verticillium dahliae
Provedor de dados: 21
Autores: Michel, Dr Vincent.
Cruciferous plants with high contents of glucosinolates can be used to control soilborne  diseases. During the degradation of such plants, the glucosinolates are  transformed into isothio- and thiocyanates. These molecules are volatile and toxic,  therefore, this method is called biofumigation. In this context, the efficacy of two brown  mustard (Brassica juncea) and one canola (Brassica napus) cultivars to reduce the  number of Verticillium dahliae microsclerotia was tested in pot trials. Verticillium  dahliae is the causal agent of verticillium wilt of a large number of important crops.  Microsclerotia are the surviving structures of V. dahliae in the soil. A strong decrease  of the number of microsclerotia was observed using the high...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2009
URL: http://orgprints.org/14147/1/Michel_14147.pdf

Biogas production: litter from broilers receiving direct-fed microbials and an enzyme blend
Provedor de dados: 63
Autores: Praes,Maria Fernanda Ferreira Menegucci; Lucas Junior,Jorge de; Orrico,Ana Carolina Amorim; Orrico Junior,Marco Antonio Previdelli; Hermes,Rafael Gustavo; Sorbara,José Otávio Berti; Duarte,Karina Ferreira; Schwingel,Alice Watte; Sgavioli,Sarah; Domingues,Carla Heloisa de Faria; Sunada,Natália da Silva.
ABSTRACT The effect of additives used in the feed of broilers on anaerobic bio-digestion of poultry litter was evaluated. Four diets were used: NC: negative control; DFM: NC + 500 ppm direct-fed microbials (DFM) containing Bacillus subtilis and Bacillus licheniformis; ENZ: diet formulated with an enzyme blend (20 ppm phytase, 200 ppm protease and 200 ppm xylanase); DFM+E: ENZ + DFM. Substrates for the anaerobic bio-digestion were prepared with litter from each treatment, containing 4 % total solids (TS). These were used in 16 continuous bio-digesters with a 2 kg d−1 load, to determine the production and potential biogas production and composition during an 85-day period. Influent and effluent samples were collected for the amounts of TS and volatile solids...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Additives; Bio-digestion; Bio-digester; Methane; Livestock residues.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000500406

Biogaserzeugung im viehlosen Betrieb: Effekte auf Stickstoffmanagement, Erträge und Qualität
Provedor de dados: 21
Autores: Stinner, Walter; Möller, Dr. Kurt; Leithold, Prof. Dr. Günter.
In organic farming systems without livestock some problems arise concerning the nitrogen management: On the one hand, there is a lack of transportable nitrogen fertilisers, on the other hand there is a potential for high losses with the usual management. The biological N2 fixation is decreased, when clover grass is mulched. If the biomass of intercrops and clover grass gets mineralised in autumn, it can be leached in winter.   In the trial referred to here, the impact of fermentation of biomass on some agricultural parameters like yield etc. are investigated within a crop-rotation of clover grass, potatoes, winter wheat, peas, winter wheat and summer wheat with undersown clover grass. Intercrops are sown after winter wheat and peas.   In the control...
Tipo: Conference paper, poster, etc.
Palavras-chave: Nutrient turnover.
Ano: 2005
URL: http://orgprints.org/3717/1/3717.pdf

Biogenic reefs affect multiple components of intertidal soft-bottom benthic assemblages: The Lanice conchilega case study
Provedor de dados: 5
Autores: De Smet, Bart; D'Hondt, An-sofie; Verhelst, Pieterjan; Fournier, Jerome; Godet, Laurent; Desroy, Nicolas; Rabaut, Marijn; Vincx, Magda; Vanaverbeke, Jan.
Biogenic reefs composed of the tube-building polychaete Lanice conchilega are important from a conservation point of view because they noticeably increase the biodiversity in otherwise species poor environments. However, up to now, little or no attention has been paid to the intertidal epi- and hyperbenthic communities associated with the reefs. Therefore, this is the first study which focuses on the effect of L. conchilega reefs on the entire bentho-pelagic community at two different locations. Environmental variables were measured and macro-, epi- and hyperbenthic communities were sampled within a L. conchilega reef and a control area at two locations in France: the bay of the Mont Saint-Michel (BMSM) and Boulogne-sur-Mer (Boulogne). The effect of the...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00226/33764/32190.pdf

Biogeochemical Argo: The Test Case of the NAOS Mediterranean Array
Provedor de dados: 5
Autores: D’ortenzio, Fabrizio; Taillandier, Vincent; Claustre, Hervé; Prieur, Louis Marie; Leymarie, Edouard; Mignot, Alexandre; Poteau, Antoine; Penkerc’h, Christophe; Schmechtig, Catherine Marie.
The necessity of wide, global-scale observing systems for marine biogeochemistry emerged dramatically in the last decade. A global network based on Biogeochemical (BGC) Argo floats is considered to be one of the most promising approaches for reaching this goal. As a first step, pilot studies were encouraged to test the feasibility of a global BGC-Argo array, to consolidate the methods and practices under development, and to set up the array’s characteristics. A pilot study in The Mediterranean Sea—deemed a suitable candidate for a test case because it combines a relatively large diversity of oceanic BGC conditions in a reduced open-ocean basin—was consequently approved as a part of the “Novel Argo ocean Observing System” (NAOS) project, a French national...
Tipo: Text
Palavras-chave: BGC-Argo floats; Mediterranean; Bioregions; Ocean color; Physical biological interactions.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00618/73031/72145.pdf

Biogeochemical aspects of bottom anoxia in a Mediterranean lagoon (Thau, France)
Provedor de dados: 5
Autores: Souchu, Philippe; Gasc, Anne; Collos, Y; Vaquer, A; Tournier, Henri; Bibent, B; Deslous-paoli, Jean-marc.
Physical and chemical characteristics (temperature, salinity, dissolved oxygen), nutrients [dissolved inorganic nitrogen (DIN), soluble reactive phosphorus (SRP) and silicate], dissolved organic nitrogen (DON) and phosphorus and particulate matter [particulate organic carbon (POC) and nitrogen (PON) and chlorophyll a] were measured at a station located in the deepest part of the Thau lagoon (8.5 m), France, during a 10 d period of bottom anoxia in summer 1994. The upper 8 cm of sediment were also analyzed for ammonium (NH(4)(+)) and SRP concentrations in the porewater. The study period was characterized by mean wind speed under 4 m s(-1) which induced an increase of surface temperature from 18 to 29 degrees C with the formation of a thermocline. The...
Tipo: Text
Palavras-chave: Anoxia; Nitrogen; Phosphorus; Eutrophication; Thau lagoon; Mediterranean Sea.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00070/18142/15694.pdf

Biogeochemical behaviour of Cd, Cu, Pb and Zn in the Scheldt estuary during the period 1981-1983
Provedor de dados: 27
Autores: Baeyens, W.F.J.; Elskens, M.; Gillain, G.; Goeyens, L.
Cu, Zn, Cd and Pb have been analysed in suspended matter and water samples from the Scheldt estuary, collected during five cruises between May 1982 and May 1983. In order to evaluate the overall metal behaviour in the estuary, continuous longitudinal profiles of the total, the particulate and the dissolved metal concentrations are discussed in relation to various specific physico-chemical parameters. By means of correlation and multi-regression techniques, several estuarine processes could be identified which dominate and/or control the behaviour of the individual trace metals in three distinct areas of the Scheldt estuary. The behaviour of the four selected metals was found to show some common features, but is besides this also characterised by many...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7043

Biogeography of the endosymbiotic dinoflagellates (Symbiodiniaceae) community associated with the brooding coral Favia gravida in the Atlantic Ocean
Provedor de dados: 5
Autores: Teschima, Mariana M.; Garrido, Amana; Paris, Alexandra; Nunes, Flavia; Zilberberg, Carla.
Zooxanthellate corals live in symbiosis with phototrophic dinoflagellates of the family Symbiodiniaceae, enabling the host coral to dwell in shallow, nutrient-poor marine waters. The South Atlantic Ocean is characterized by low coral diversity with high levels of endemism. However, little is known about coral–dinoflagellate associations in the region. This study examined the diversity of Symbiodiniaceae associated with the scleractinian coral Favia gravida across its distributional range using the ITS-2 marker. This brooding coral endemic to the South Atlantic can be found across a wide range of latitudes and longitudes, including the Mid-Atlantic islands. Even though it occurs primarily in shallower environments, F. gravida is among the few coral species...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00484/59602/62612.pdf

Bioherbicidal Assessment of Aqueous Extracts of Mesquite (Prosopis juliflora) on Weeds Control and Growth, Yield and Quality of Wheat
Provedor de dados: 87
Autores: SHAH,R.H.; BALOCH,M.S.; KHAN,A.A.; IJAZ,M.; ZUBAIR,M.
ABSTRACT: Two-year field experiments were conducted to investigate the phytotoxicity of mesquite (Prosopis juliflora) on weed control and yield of wheat in 2013-14 and 2014-15. Mesquite aqueous extracts were prepared with 10, 20, 30 and 40% concentration of leaves, stems, and roots and were compared with tap water (control). These experiments were laid out in a completely randomized block design with four replications. All parameters (weed density, fresh weed biomass, dry weed biomass, chlorophyll content, leaf area index, leaf area duration, crop growth rate, net assimilation rate, plant height and number of tillers) were significantly reduced by applying the mesquite extracts. Among different concentrations, the maximum level (40%) of all three plant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Extract; Weeds; Wheat yield.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100214

Biohühner - ausser Kontrolle?
Provedor de dados: 21
Autores: Koch, Anna; Neuendorff, Jochen.
Der Artikel analysiert die Ursachen der in 2012 und 2013 aufgedeckten schwerwiegenden Verstöße in der Bio-Gefügelhaltung und schlägt Maßnahmen zur Verbesserung der Richtlinien und des Öko-Kontrollverfahrens vor.
Tipo: Journal paper
Palavras-chave: Consumer issues; Poultry.
Ano: 2013
URL: http://orgprints.org/23021/1/koch-neuendorff-2013-Biohuehner-Oekologie-und-Landbau.pdf

BIO-INCROP - Final report
Provedor de dados: 21
Autores: Manici , L.M.
APPLE  • Apple replant disease in central Europe has a consistent biotic origin which is responsible for about 30% of growth reduction in multi-generation orchards. Cylindrocarpon-like fungi and Pythium spp. were shown to be primarily responsible for plant growth reduction, which was confirmed as main indicator of apple replant disease.   • Pyrosequencing analysis of rhizospheric microbial communities associated to replanted orchards confirmed that Cylindrocarpon-like fungi are largely associated to replant disease; however, it also evidenced that several bacterial and fungal genera indigenous to replanted orchards are positively correlated to plant growth. This suggested that many are the indigenous resource to be exploited for increasing plant...
Tipo: Report
Palavras-chave: Soil quality Soil biology Fruit and berries Crop health; Quality; Protection.
Ano: 2015
URL: http://orgprints.org/29112/1/BIO-INCROP_COII_final_report_web_version.pdf

Bioinformatics analysis of the gene expression profile in Bladder carcinoma
Provedor de dados: 74
Autores: Xiao,Jing; Yiqing,Qiu.
Bladder carcinoma, which has the ninth highest incidence among malignant tumors in the world, is a complex, multifactorial disease. The malignant transformation of bladder cells results from DNA mutations and alterations in gene expression levels. In this work, we used a bioinformatics approach to investigate the molecular mechanisms of bladder carcinoma. Biochips downloaded from the Gene Expression Omnibus (GEO) were used to analyze the gene expression profile in urinary bladder cells from individuals with carcinoma. The gene expression profile of normal genomes was used as a control. The analysis of gene expression revealed important alterations in genes involved in biological processes and metabolic pathways. We also identified some small molecules...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bladder carcinoma; Differential expression; Expression profile; Small molecular mimic; Susceptibility forecast.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000200021

Biologia da Arsenura xanthopus (Walker, 1855) ( Lepidoptera - Adelocephalidae ), praga do «Açoita-Cavalo» (Luehea spp.) e notas sôbre seus inimigos naturais
Provedor de dados: 43
Autores: Lordello,Luiz Gonzaga E.; Mariconi,Francisco A. Menezes.
Biology of Arsenura xanthopus (Walker, 1855) (Lep., Adelocephalidae), a pest of Luehea spp. (Tiliaceae), and notes on its natural enemies. In the beginning of 1950, one of the Authors made some observations about the biology of Arsenura xanthopus (Walker), in Piracicaba, State of S. Paulo, Brazil. From 1951 to 1953, both Authors continued the observations on such an important Adelocephalidae, the caterpillars of which represent a serious pest of Luehea spp. leaves. Actually, in some occasions, the caterpillars can destroy completely the leaves of the trees. The species is efficientely controlled by two natural enemies: an egg parasite (Tetrastichus sp., Hym., Eulophidae) and a fly attacking the last instar caterpillar (Winthemia tricolor (van der Wulp),...
Tipo: Info:eu-repo/semantics/article
Ano: 1953
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761953000100016

Biologia de Agistemus floridanus Gonzalez (Acari, Stigmaeidae)
Provedor de dados: 104
Autores: Ferla,Noeli Juarez; Moraes,Gilberto José de.
The rubber tree (Hevea brasiliensis Muell. Arg.) (Euphorbiaceae) is attacked by various species of phytophagous mites in Brazil. Studies conducted in the State of Mato Grosso showed the presence of Agistemus floridanus Gonzalez, 1965 (Stigmaeidae) on rubber trees, associated with the mite Tenuipalpus heveae Baker, 1945. The aim of this work was to study the biology of that predator in the laboratory, when fed with T. heveae as prey. The study was started with 22 eggs, which resulted in 15 females reaching adult hood. To determine the effect of mating on oviposition, 30 females were used; half of those were maintained isolated and the remaining were maintained then with males during the whole adult stage. The stage of egg was the longest, with a duration of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acari; Biological control; Predator; Rubber tree.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000200015

Biología de Eretmocerus mundus (Hymenoptera: Aphelinidae), parasitoide del complejo Bemisia tabaci (Homoptera: Aleyrodidae), en condiciones de laboratorio
Provedor de dados: 99
Autores: Chacón Castro,Yerlin; López,Silvia N.
La estimación de los atributos biológicos de un enemigo natural, previa a su empleo en el campo, constituye un aspecto de importancia en todo proyecto de control biológico. El objetivo de este trabajo fue evaluar los principales parámetros biológicos de Eretmocerus mundus Mercet, parasitoide de Bemisia tabaci (Gennadius), bajo condiciones de laboratorio.La emergencia del adulto, longevidad y fecundidad de la hembra, proporción sexual de la descendencia, tasa intrínseca de crecimiento poblacional (r m), tasa neta de reproducción (Ro) y tiempo generacional (T); se estimaron mediante la técnica de tabla de vida y fecundidad, utilizando el pimiento (Capsicum annuum L.) y el tomate (Solanum lycopersicum L.) como plantas hospederas. Los resultados obtenidos en...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eretmocerus mundus; Bemisia tabaci; Capsicum annuum; Solanum lycopersicum; Control biológico.
Ano: 2010
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802010000100005

Biología de Sympherobius barberi Banks (Neuroptera : Hemerobiidae) criado con Dactylopius opuntiae Cockerell (Hemíptera : Dactylopiidae).
Provedor de dados: 32
Autores: Pacheco Rueda, Ma. Iliana.
El nopal verdura, Opuntia ficus-indica, es una hortaliza de importancia económica en México, y una de sus plagas más importantes es la cochinilla silvestre del nopal, Dactylopius opuntiae. Dentro del complejo de, sus enemigos naturales nativos es el depredador Sympherobius barberi se considera uno de sus potenciales aalternativas de control, pero no existe información sobre esta especie. El objetivo de esta investigación fue estudiar la biología y morfología de S. barberi alimentado con D. opuntiae. Todo el material de la plaga y el depredador, para establecer las crías de laboratorio, se obtuvo de la zona productora de nopal verdura de Tlalnepantla, Morelos. S. barberi tienes tres instares larvales y completó su ciclo biológico en 28 días, presentó una...
Palavras-chave: Nopal verdura; Opuntia ficus-indica; Plagas nativas; Control biológico; Prickly pear; Native pests; Biological control; Maestría; Entomología; Acarología.
Ano: 2010
URL: http://hdl.handle.net/10521/105

Biología de Sympherobius barberi Banks (Neuroptera : Hemerobiidae) criado con Dactylopius opuntiae Cockerell (Hemíptera : Dactylopiidae).
Provedor de dados: 32
Autores: Pacheco Rueda, Ma. Iliana.
El nopal verdura, Opuntia ficus-indica, es una hortaliza de importancia económica en México, y una de sus plagas más importantes es la cochinilla silvestre del nopal, Dactylopius opuntiae. Dentro del complejo de, sus enemigos naturales nativos es el depredador Sympherobius barberi se considera uno de sus potenciales aalternativas de control, pero no existe información sobre esta especie. El objetivo de esta investigación fue estudiar la biología y morfología de S. barberi alimentado con D. opuntiae. Todo el material de la plaga y el depredador, para establecer las crías de laboratorio, se obtuvo de la zona productora de nopal verdura de Tlalnepantla, Morelos. S. barberi tienes tres instares larvales y completó su ciclo biológico en 28 días, presentó una...
Palavras-chave: Nopal verdura; Opuntia ficus-indica; Plagas nativas; Control biológico; Prickly pear; Native pests; Biological control; Maestría; Entomología; Acarología.
Ano: 2010
URL: http://hdl.handle.net/10521/105

Biología de Tamarixia triozae (Burks) (Hymenoptera: Eulophidae) parasitoide de Bactericera cockerelli (Sulc) (Hemíptera: Triozidae).
Provedor de dados: 32
Autores: Rojas Rojas, Patricia.
El psílido de la papa [Bactericera cockerelli (Sulc)] es una de las plagas más importantes de las solanáceas, causa daños no sólo por la alimentación sino además por el papel como vector de enfermedades en papa y tomate, lo cual ocasiona pérdidas millonarias en Estados Unidos de América, México y Centroamérica. Debido a esto el uso de plaguicidas contra este insecto se ha incrementado, y con ello los posibles problemas de resistencia a insecticidas, brotes de plagas secundarias y daños al ambiente; entonces es necesario implementar un programa de manejo integrado de esta plaga, donde el control biológico se convierta en una de las herramientas principales, para ello es necesario incrementar el conocimiento de la biología de los enemigos naturales de este...
Palavras-chave: Psílido de la papa; Enemigos naturales; Control biológico; Potato psyllid; Natural enemies; Biological control; Maestría; Entomología y Acarología.
Ano: 2010
URL: http://hdl.handle.net/10521/263

Biología del tizón suizo y su relación con el silicio y la nutrición de árboles de navidad.
Provedor de dados: 32
Autores: Salgado Feregrino, Oscar Javier.
En México, el Tizón Suizo, Phaeocryptopus gaeumannii, reduce la calidad y producción de árboles de navidad, poco se conoce del ciclo biológico. Esta investigación se dividió en tres partes. La primera tuvo como objetivo conocer la biología del hongo a través de un año, para ello se identificó, secuenció, evaluó incidencia, severidad, defoliación, porcentaje de aislamientos, ascosporas en pseudotecios y aerotransportadas. En la segunda parte se estudió in vitro la relación del hongo con el silicio y nutrimentos, se registró peso húmedo y seco. En la tercera parte se estudio in situ la relación con la dosis nutritiva y evaluó porcentaje de defoliación y concentración nutrimental en acículas. En la primera parte se encontró hasta tres periodos de incremento...
Palavras-chave: Forestal; Maestría; Ascosporas aerotransportadas; Incidencia; Phaeocryptopus gaeumannii; Severidad; Pseudotsuga menziesii; Airborne ascospore; Incidence; Severity.
Ano: 2013
URL: http://hdl.handle.net/10521/2075

Biologia e controle do gafanhoto Rhammatocerus sp.
Provedor de dados: 14
Autores: COSENZA, G. W.
bitstream/item/101103/1/doc-25.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Rhammatocerus.; Biologia Animal; Cerrado; Controle Químico; Controle Biológico; Ecologia Animal; Gafanhoto; Morfologia Animal; Praga.; Animal morphology; Animal ecology; Chemical control; Biological control; Pests.
Ano: 1987
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547774

Biologia e controle do gafanhoto Rhammatocerus sp.
Provedor de dados: 14
Autores: COSENZA, G. W.
bitstream/item/101102/1/doc-25.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Rhammatocerus.; Biologia Animal; Cerrado; Controle Biológico; Controle Químico; Ecologia Animal; Gafanhoto; Morfologia Animal; Praga.; Animal morphology; Animal ecology; Chemical control; Biological control; Pests.
Ano: 1987
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/562152

Biologia e fisiologia de Crinipellis perniciosa do cupuaçuzeiro em relação a fisiopatologia.
Provedor de dados: 14
Autores: STEIN, R. L. B.; ALBUQUERQUE, F. C. de; ROCHA NETO, O. G. da; CONCEIÇÃO, H. E. O. da; BASTOS, C. N.; ENDO, T.; ITO, T.
bitstream/item/67099/1/CPATU-Doc90P37.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Vassoura-de-bruxa; Biology.; Biologia; Crinipellis Perniciosa; Cupuaçu; Controle Biológico; Fisiologia; Theobroma Grandiflorum.; Biological control; Physiology.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/395080

Biologia e tabela de vida de Tetranychus desertorum (Acari: Tetranychidae) sobre folhas de feijão (Phaseolus vulgaris)
Provedor de dados: 103
Autores: Rivero,Edgar; Vásquez,Carlos.
Biological aspects and life table of the red spider mite, Tetranychus desertorum Banks, 1900, were studied on leaf discs of kidney bean (Phaseolus vulgaris Linnaeus) cultivar "Tacarigua" under laboratory conditions (28 ± 2ºC, 70 ± 10% R.H. and 12:12h). Our results showed that total developmental time was 6.8 days for females, with partial duration of immature stages corresponding to 3.8, 1.4, 1.0 and 0.7 for egg, larva, protonymph and deutonymph, respectively. Preoviposition, oviposition and postoviposition periods were 1.1, 8.4 and 1.3 days, respectively; and the higher mean fecundity (6.93 eggs/female/day) was observed on day 4. Female mean longevity was 10 days. The life table parameters recorded were: net reproduction rate (Ro) = 41.10 individuals;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fecundity; Life history; Red spider mite; Tetranychid.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100007

BIOLOGIA, ecologia e controle de pragas da agricultura.
Provedor de dados: 14
bitstream/item/141766/1/controle-GP-biologia-ecologia-e-controle-de-pragas-da-gricultura.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Controle biológico; Praga; Inimigo natural.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1042065

Biología, ecología y control de Diaphorina citri Kuwayama (Hemíptera: Psyllidae).
Provedor de dados: 32
Autores: Sánchez Borja, Maricarmen.
Los cítricos mexicanos son de gran importancia económica en Cuitláhuac, Veracruz; entre éstos, el limón Persa es el cultivo de mayor importancia económica debido a que ocupa la mayor superficie de  producción y genera mayores divisas para los productores. Sin embargo, la citricultura mexicana se ve amenazada por la presencia de Diaphorina citri, un insecto que causa daños en el cultivo cuando se encuentra presente en altas densidades poblacionales; la mayor amenaza en cuanto a pérdidas económicas es provocada por la enfermedad de Huanglongbing (HLB), donde este insecto es uno de los vectores  principales. Debido a la falta de información en cuanto al conocimiento de esta plaga y al desconocimiento de la presencia del patógeno en la localidad de Cuitláhuac...
Palavras-chave: Abundancia poblacional; Psillido asiático de los cítricos; Detección HLB; Population abundance; Asian citrus psyllid; Detection HLB; Tamarixia sp.; Doctorado; Entomología y Acarología.
Ano: 2010
URL: http://hdl.handle.net/10521/256

Biología, morfología y evaluación tóxica de acaricidas en la araña roja de la fresa Tetranychus telarius (L.) (Acarina: tetranychidae).
Provedor de dados: 32
Autores: Velasco P., Hermenegildo; Pacheco, Francisco.
Se estableció un cultivo de ácaros Tetranychus telarius (L.) en invernadero, para tener una fuente de material biológico. El objeto fue llevar a cabo los estudios de biología, pruebas con acaricidas y tener material para estudios de morfología. Los ácaros se colectaron en cultivos de fresa en Irapuato y los resultados con acaricidas efectuados en el invernadero fueron comprobados en condiciones de campo. La biología de T. telarius comprende los estados de huevecillo, larva, protoninfa, deutoninfa y adulto, con duración sw 5, de 6 a 6.4, de 1.8 a 2.5, de 1.8 a 3.5 y de 2.4 a 5.0 días respectivamente. Timet, Etión y Clorobenzilato, resultaron ser los mejores acaricidas para el control de huevecillos, tanto recién ovipositados como viejos. Keltane, Metasystox...
Tipo: Artículo
Palavras-chave: Insectos y entomología.; Acaricidas.; Tetranychus telarius.; Timet.; Etión.; Clorobenzilato.; Keltane.; Metasystox.; Fenkaptón.
Ano: 1968
URL: http://hdl.handle.net/10521/1922

Biología reproductiva de tres especies simpátricas de Bignoniaceae en Argentina
Provedor de dados: 51
Autores: Torretta,Juan Pablo; Cerino,María Carolina.
La biología reproductiva de Handroanthus heptaphyllus, Tabebuia nodosa y Fridericia dichotoma (Bignoniaceae) fue estudiada en la reserva El Bagual, Provincia de Formosa, Argentina, para describir aspectos de la biología floral, recompensas florales, sistemas reproductivos, polinizadores y visitantes florales. Los resultados obtenidos revelan que las tres especies estudiadas son autoincompatibles, no autógamas y dependientes de polinizadores (abejas de tamaño mediano a grande). La formación de frutos en flores tratadas con polinización cruzada manual fue superior a la de las flores no tratadas (control); mientras que las flores auto-polinizadas no formaron frutos. El éxito reproductivo relativo fue bajo en las tres especies. Tales éxitos reproductivos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bignoniaceae; Polinización; Sistema reproductivo; Argentina.
Ano: 2013
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722013000100005

Biología y control del agallador Andricus quercuslaurinus en el encino Quercus affinis.
Provedor de dados: 32
Autores: Barrera Ruíz, Uriel M.
Andricus quercuslaurinus es un cinípido agallador de Quercus affinis que presenta heterogonia. La generación sexual que induce agallas en las hojas está compuesta por machos y hembras, mientras que la generación alternante induce agallas en ramitas jóvenes y está compuesta solo por hembras, por lo que se conoce como generación asexual. El ciclo biológico de A. quercuslaurinus tiene aspectos aún desconocidos. En la presente investigación se describen las características de los huevos ovipositados, el periodo de inducción de las agallas de hoja y algunos otros aspectos del desarrollo del cinípido y de sus agallas. Los estragos causados por este cinípido en la población de Q. affinis generaron el interés de los propietarios del lugar donde se instaló un...
Palavras-chave: Cynipidae; Ciclo biológico; Etapas de desarrollo; Efectividad de insecticidas; Biological cycle; Development stages; Insecticide effectiveness; Entomología y Acarología; Maestría.
Ano: 2014
URL: http://hdl.handle.net/10521/2238

Biología y tabla de vida de Tamarixia radiata Waterston bajo condiciones controladas
Provedor de dados: 100
Autores: Baños Díaz,Heyker L; Miranda,Ileana; Martínez,María de los A.
Con el objetivo de determinar bajo condiciones controladas, la duración del ciclo de vida, la sobrevivencia, proporción sexual, longevidad, fecundidad y otros atributos biológicos y poblacionales de Tamarixia radiata Waterson, se estableció una cría sobre Diaphorina citri Kuwayama en Murraya paniculata (Jack) a 70±10% de HR, 28±1°C y 14 :10 LD. El periodo de pre-momificación y el ciclo de desarrollo fueron de 3,08 y 7,27 días respectivamente, para un ciclo de vida total de 25,62 con una sobrevivencia promedio de 18,35 días. El parasitoidismo superó el 70% con una emergencia de 72,27%, a su vez, la tasa de ovoposición fue de 24 huevos/hembra/día, y una longevidad de 23 días como promedio para la especie, siendo mayor en las hembras. El tiempo de fecundidad...
Tipo: Journal article
Palavras-chave: Diaphorina citri; Control biológico.
Ano: 2013
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522013000200004

BIOLOGICAL ACTIVITIES AND NOVEL APPLICATIONS OF CHALCONES
Provedor de dados: 87
Autores: DÍAZ-TIELAS,C.; GRAÑA,E.; REIGOSA,M.J.; SÁNCHEZ-MOREIRAS,A.M.
ABSTRACT This review provides information on the biological activities of chalcones (whether natural or synthetic derivatives) on different organisms, as well as an overview of the functions and possible new applications of these plant secondary metabolites on crop protection, as eco-friendly pesticides and weed control agents. Naturally occurring chalcones have been used in traditional medicine for many years; however, recent scientific advances have shown that these molecules have a broad range of biological activities in a variety of organisms. A review on the major sources of chalcones and the main molecular events involved in the modes of action of these natural products is achieved. Chalcones are molecules with a broad spectrum of biological...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mode of action; Secondary metabolites; Crop protection; Pesticide; Fungicide; Antiviral; Phytotoxicity.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000300607

Biological activity and binding of estradiol to SK-Mel 23 human melanoma cells
Provedor de dados: 56
Autores: Sarti,M.S.M.V.; Visconti,M.A.; Castrucci,A.M.L.
Patients expressing estradiol receptors in melanoma cells have been reported to have a better prognosis. We therefore decided to investigate the in vitro effects of ß-estradiol and tamoxifen on the growth and tyrosinase activity of SK-Mel 23 human melanoma cells. Twenty-four-hour treatment with 0.4 nM ß-estradiol inhibited cell proliferation in 30% (0.70 ± 0.03 x 10(5) cells) and increased tyrosinase activity in 50% (7130.5 ± 376.5 cpm/10(5) cells), as compared to untreated cells (1.0 ± 0.05 x 10(5) cells and 4769 ± 25.5 cpm/10(5) cells, respectively). Both responses were completely (100%) blocked by 1 µM tamoxifen. Higher concentrations (up to 1.6 nM) or longer treatments (up to 72 h) did not result in a larger effect of the hormone on proliferation or...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: SK-Mel 23 cell line; Human melanoma; SS-estradiol; Tamoxifen; Cell proliferation; Tyrosinase activity.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000600016

Biological activity and persistence of pirimiphos-methyl applied to maize grain at different temperatures
Provedor de dados: 91
Autores: Silveira,Rodrigo D.; Faroni,Lêda R. A.; Guedes,Raul N. C.; Queiroz,Maria E. L. R.; Pimentel,Marco A. G.
The expansion of dryeration may impose a further problem for insect control with protectants - the high grain temperatures during insecticide spraying. To assess the impact of this procedure on insecticide activity, maize grains at different temperatures (25, 30, 35, 40 and 45 °C) were sprayed with pirimiphos-methyl. Residue analyses were carried out every 30 days and insecticide biological activity towards Sitophilus zeamais and Tribolium castaneum was assessed every 15 days throughout the experimental period of 90 days. Insect mortality was evaluated after 48 h. Pirimiphos-methyl residue decreased with increased storage time and grain temperature during spraying. Similar trends were also observed for mortality of S. zeamais and T. castaneum, which...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sitophilus zeamais; Tribolium castaneum; Organophosphate; Residue; Insect control.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662009000600010

Biological activity of Bacillus thuringiensis strains against larvae of the Blowfly Chrysomya putoria (Wiedemann) (Diptera: Calliphoridae)
Provedor de dados: 82
Autores: Oliveira,Marcio S.; Nascimento,Marcelo A.; Cavados,Clara F.G.; Chaves,Jeane Q.; Rabinovitch,Leon; Lima,Marli M.; Queiroz,Margareth M.C.
Different strains of Bacillus thuringiensis Berliner were proved to be a powerful biologic insecticide against larvae of several insect orders. Due to the epidemiological importance of blowflies of the Chrysomya Robineau-Desvoidy genus in the production of secondary cutaneous myiasis and mechanic transmission of pathogenic agents, the performance of two strains of B. thuringiensis (LFB-FIOCRUZ 907 and LFB-FIOCRUZ 856) was tested against larvae of Chrysomya putoria (Wiedemann). The LFB-FIOCRUZ 907 strain was tested in four different concentrations, added to the diet; the LFB-FIOCRUZ 856 strain was tested in three concentrations. C. putoria larvae showed sensibility to the treatment with the LFB-FIOCRUZ 907 strain at the tested concentrations. The higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fly; Entomopathogenic action; Biological control.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000600020

Biological activity of Citrus spp. metabolites on Ceratitis capitata (Wiedemann).
Provedor de dados: 21
Autores: Faraone, Nicoletta; Caleca, Virgilio; Bruno, Maurizio; Vitagliano, Silvia; De Cristofaro, Antonio.
The Mediterranean fruit fly (medfly), Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), is one of the most injurious pest at global level. During the last years, several electrophysiological and behavioural studies have been carried out in order to investigate plant volatile compound-insect interactions with the aim to use this knowledge in sustainable control techniques.  It has been observed that lemons are not attacked by medfly, probably because of the peel oil, that is toxic to other fruit flies. In the present paper electrophysiological recordings were conducted to evaluate the insect sensitivity to peel extract and peel oil of two Sicilian cultivars (Interdonato and Lunario) of Citrus x limon (L.) Burm.f. on C. capitata females. Behavioural...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection.
Ano: 2012
URL: http://orgprints.org/20566/1/F_167%2D173_Faraone.pdf

Biological Activity of Essential Oils from Leaves and Fruits of Pepper Tree (Schinus molle L.) to Control Rice Weevil (Sitophilus oryzae L.)
Provedor de dados: 117
Autores: Benzi,Verónica; Stefanazzi,Natalia; Ferrero,Adriana A.
Rice weevil (Sitophilus oryzae L.) is a primary insect pest of stored grain. The development of resistance resulted in the application of synthetic insecticides. In recent years many plant essential oils have provided potential alternatives to currently used insect control agents. The Brazilian pepper tree (Schinus molle L. var. areira (L.) DC.) (Anacardiaceae) has different biological properties such as insecticidal activity. In this study, repellent, fumigant activity, nutritional indices, and feeding deterrent action were evaluated on S. oryzae adults. Filter paper impregnation was used to test fumigant toxicity, whereas treated whole wheat was used to evaluate repellent activity and a flour disk bioassay was done to evaluate feeding deterrent action...
Tipo: Journal article
Palavras-chave: Repellency; Fumigant toxicity; Nutritional indices; Feeding deterrence.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000200004

Biological activity of soils under systems of organic farming, agroforestry and pasture in the Amazon
Provedor de dados: 124
Autores: Silva,Irene Ferro; Araújo Neto,Sebastião Elviro de; Kusdra,Jorge Ferreira.
The aim of this work was to evaluate biological indicators of soils used under the systems of organic farming, agroforestry and pasture in the south western part of the Amazon region of Brazil. The experiment was carried out at the Seridó Ecological Site, located in Rio Branco, in the state of Acre, Brazil. The experimental design was completely randomised, with five treatments (land-use systems) and six replications, with each replication consisting of four single samples. The systems of land use evaluated were: 1) native forest (control); 2) agroforestry (AFS); 3) pasture; 4) intercropped passion fruit, maize, cassava, pineapple and forage peanut; and 5) intercropped passion fruit, maize, cassava, pineapple and tropical kudzu. It was found that organic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Organic production; Carbon dynamics; Ground cover.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000300001

Biological and chemical control of Sclerotinia sclerotiorum using Trichoderma spp. and Ulocladium atrum and pathogenicity to bean plants
Provedor de dados: 52
Autores: Figueirêdo,Girlene Soares de; Figueirêdo,Lívio Carvalho de; Cavalcanti,Francinete Carla Nunes; Santos,Angela Coimbra dos; Costa,Antonio Felix da; Oliveira,Neiva Tinti de.
Four isolates of Sclerotinia sclerotiorum were tested for pathogenicity in IPA-10 variety bean plants (Phaseolus vulgaris L.), and all were pathogenic. Biological control in vitro was evaluated using eight isolates of Trichoderma spp. and, one of Ulocladium atrum. Chemical control in vitro with fungicides Thiophanate methyl, Iprodione and Carbendazim was also tested. Except U. atrum, all Trichoderma isolates showed antagonistic potential against S. sclerotiorum, where isolate 3601 presented the best performance. Thiophanate methyl chemical control was the most efficient. This fungicide and isolate 3601were compared in vivo in greenhouse. There was statistical difference between the treatments, and the application of fungicide and antagonist before the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: S. sclerotiorum; Trichoderma; Antagonist; Bean plant.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100001

Biological and physical controls in the Southern Ocean on past millennial-scale atmospheric CO2 changes
Provedor de dados: 5
Autores: Gottschalk, Julia; Skinner, Luke C.; Lippold, Joerg; Vogel, Hendrik; Frank, Norbert; Jaccard, Samuel L.; Waelbroeck, Claire.
Millennial-scale climate changes during the last glacial period and deglaciation were accompanied by rapid changes in atmospheric CO2 that remain unexplained. While the role of the Southern Ocean as a 'control valve' on ocean–atmosphere CO2 exchange has been emphasized, the exact nature of this role, in particular the relative contributions of physical (for example, ocean dynamics and air–sea gas exchange) versus biological processes (for example, export productivity), remains poorly constrained. Here we combine reconstructions of bottom-water [O2], export production and 14C ventilation ages in the sub-Antarctic Atlantic, and show that atmospheric CO2 pulses during the last glacial- and deglacial periods were consistently accompanied by decreases in the...
Tipo: Text
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00334/44544/44256.pdf

BIOLOGICAL ASPECTS AND INSECTICIDE ACTION OF PLANT SPECIES ON EGGS AND NYMPHS OF CITRUS BLACK FLY (Aleurocanthus woglumi Ashby - Aleyrodidae)AT LABORATORY LEVEL
Provedor de dados: 94
Autores: CARVALHO,JULIANE DAMASCENO DE; NEVES,FELIPE LOPES; SILVA,CLÁUDIA DURVAL DA; BITTENCOURT,MARIA APARECIDA LEÃO.
ABSTRACT Aleurocanthus woglumi Ashby (Hemiptera: Aleyrodidae) is an important pest of many plant species in particular citrus species. The aims of this study were: (1) to observe ;'in vitro'; biological aspects in three hosts and (2) to evaluate the bioactivity of plant species on immature A.woglum. Aqueous neem extract (Meliaceae), cassava wastewater, pepper sauce and gravy peduncle floral carnation guinea button and commercial neem were used in the experiment. Egg viability (%), nymphal period duration, nymphal mortality (%), puparium stage duration and pupae viability (%) were evaluated in 50 egg positions, with minimum of five eggs in "Pera" orange, mango and malay apple leaves obtained in the field. The insecticide effect (translaminar action and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Azadirachta indica; Botanical insecticide; Manipueira.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000500401

Biological aspects and life table of Uroleucon ambrosiae (Thomas, 1878) as a function of temperature
Provedor de dados: 63
Autores: Auad,Alexander Machado; Moraes,Jair Campos de.
The aphid Uroleucon ambrosiae (Thomas) is considered a pest of hidroponically-grown lettuce, but basic and applied information on its control are scarce in Brazil. The aim of this study was to determine the effect of different temperatures on biological aspects and life history of U. ambrosiae (Thomas) developing on hydroponic lettuce (Lactuca sativa L.) crop. Newly emerged nymphs were placed on 4-cm discs of hydroponic lettuce, var. Verônica, which were maintained on 5-cm Petri dishes, at temperatures of 15, 20 and 25ºC and 14 h photophase, and inside a greenhouse, within micro-cages at room temperature. The duration of development in all nymphal stages varied inversely to temperature. Nymphs maintained at 20ºC and 25ºC, had similar development period....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Aphids; Biology; Climatic factors.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000400008

Biological aspects and predatory capacity of Podisus nigrispinus (Dallas) (Hemiptera: Pentatomidae) fed on Alabama argillacea (Hübner) (Lepidoptera: Noctuidae) reared on cotton genotypes
Provedor de dados: 63
Autores: Santos,Terezinha Monteiro dos; Boiça Jr.,Arlindo Leal.
Host plants may influence indirectly biological characteristics of predators, on a positive or negative way, poiting out the importance of studies evaluating the effect of cultivars on the third trophic level. This study evaluates the biological aspects and predatory capacity of Podisus nigrispinus adults fed Alabama argillacea larvae reared on cotton genotypes. The predator was fed daily with fourth instar larvae reared on leaves of the following genotypes CNPA Precoce 1 (hirsute), CNPA 9211-31 (high gossypol level), CNPA 9211-41 (medium gossypol level) and GL2 GL3 (gossypol glandless). The pre-oviposition, oviposition and post-oviposition periods and the oviposition capacity of P. nigripinus were not affected when preyed on cotton leafworms reared on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cotton leafworm; Predator; Biological control; Plant resistance.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000400008

Biological aspects of Harmonia axyridis in comparison with Cycloneda sanguinea and Hippodamia convergens
Provedor de dados: 86
Autores: Santos,Laís da Conceição dos; Santos-Cividanes,Terezinha Monteiro dos; Cividanes,Francisco Jorge; Matos,Sidnéia Terezinha Soares de.
The objective of this work was to evaluate the development, survival, reproductive capacity, and longevity of the Asian ladybug Harmonia axyridis in comparison with Cycloneda sanguinea and Hippodamia convergens. Coccinellid larvae and adults were fed daily with Schizaphis graminum. Ten couples of each species were isolated for evaluation of the adult phase. The duration of the larval stage of H. axyridis is the longest (10.2 days) and its adults are the heaviest (29.7 mg) compared with C. sanguinea and H. convergens. The three species showed similar percentages of survival during the developmental stages. An average of 82% of C. sanguinea, H. axyridis, and H. convergens larvae reached adulthood, which indicates that temperature (25°C) and the offered prey...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Coccinellid; Development; Longevity; Ladybug; Predator.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013001100001

Biological aspects of the immature stages of Ceraeochrysa everes (Banks) (Neuroptera: Chrysopidae)
Provedor de dados: 63
Autores: Barbosa,Leonardo Rodrigues; Freitas,Sérgio de; Auad,Alexander Machado.
A knowledge of the behavior and biological aspects of natural enemies is extremely important for the establishment of biological control programs. Biological aspects of the larvae, pre-pupae and pupae of the predator Ceraeochrysa everes (Banks) were studied. Larvae of the adult F1 generation were reared in the laboratory (25 ± 2°C, 65 ± 10 % RH and 14h photophase) on eggs of the Angoumois grain moth Sitotroga cerealella (Olivier). The duration and viability of the embryonic period, development of the immature stages and egg-adult period were evaluated. The mean embryonic period was 5.0 days, while the mean durations of the first, second and third instars were: 5.1 ± 0.03; 4.3 ± 0.05 and 4.5 ± 0.05 days, respectively, with viability exceeding 90%. Duration...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Insecta; Predator; Biology; Green lacewing.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162002000300025

Biological characteristics and parasitism capacity of Trichogramma pretiosum Riley (Hymenoptera, Trichogrammatidae) on eggs of Spodoptera frugiperda (J. E. Smith) (Lepidoptera, Noctuidae)
Provedor de dados: 92
Autores: Bueno,Regiane Cristina Oliveira de Freitas; Bueno,Adeney de Freitas; Parra,José Roberto Postalli; Vieira,Simone Silva; Oliveira,Luciele Januário de.
This study aimed at evaluating the biological characteristics and the capacity of parasitism of a Trichogramma pretiosum Riley, 1869 (Hymenoptera, Trichogrammatidae) strain (T. pretiosum RV) collected in Rio Verde County, State of Goiás, Brazil. The study was carried out on eggs of Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera, Noctuidae) and conducted under controlled environmental conditions at different constant temperatures. The biological parameters determined were: developmental time (egg-adult; days); emergence (%); sex ratio; number of progeny/egg; number of generation/year; thermal constant (K); temperature threshold (Tb); daily number of parasitized eggs; cumulative parasitism (%); total number of eggs parasitized by T. pretiosum; and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Egg parasitoids; Fall armyworm; Temperature.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262010000200016

Biological characteristics of Palmistichus elaeisis Delvare &amp;amp; LaSalle (Hymenoptera: Eulophidae) on refrigerated pupae of Anticarsia gemmatalis Hubner (Lepidoptera: Noctuidae)
Provedor de dados: 117
Autores: Pereira,Fabricio Fagundes; Cola Zanuncio,José; Oliveira Kassab,Samir; Pastori,Patrik Luiz; Hidalgo Barbosa,Rogério; Rossoni,Camila.
Mass rearing of parasitoids is a fundamental step for biological control programs. The biological characteristics of Palmistichus elaeisis Delvare &amp;amp; LaSalle (Hymenoptera: Eulophidae) were evaluated in pupae of Anticarsia gemmatalis Hubner (Lepidoptera: Noctuidae) stored at low temperatures. Twenty four hours-old pupae of A. gemmatalis were stored at 12 °C for 0, 1, 3, 6, 9, and 12 d and then exposed to parasitism by P. elaeisis females. The life span of P. elaeisis was affected and ranged from 19 to 24 d on the pupae of the host. Parasitism reached 100% of the host pupae after storage in all periods at 12 °C, and adults emerged from 20.00 to 54.54% of them. The progeny of P. elaeisis ranged from 71 to 198 and had an inverse relationship with the...
Tipo: Journal article
Palavras-chave: Biological control; Parasitism; Parasitoid rearing; Temperature.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200005

Biological characteristics of Telenomus alecto and Trichogramma galloi reared on eggs of the sugarcane borer Diatraea flavipennella
Provedor de dados: 92
Autores: Dias-Pini,Nivia da Silva; Broglio,Sônia Maria Forti; Costa,Simone da Silva; Santos,Jakeline Maria dos; Guzzo,Elio Cesar.
Diatraea flavipennella (Box) (Lepidoptera, Crambidae) is one of the most destructive pests in sugarcane plantations in the Northeast Region of Brazil. Developmental characteristics and parasitism potential of the egg parasitoids Telenomus alecto Crawford (Hymenoptera, Scelionidae) and Trichogramma galloi Zucchi (Hymenoptera, Trichogrammatidae) were compared with the aim of selecting a suitable species for biological control of D. flavipennella. Both T. alecto and T. galloi developed well and were readily adapted to D. flavipennella eggs as host. Although, T. galloi presented higher viability, with more adults emerging per host egg and higher sex ratio, the developmental period (egg-adult) was shorter in T. alecto and female longevity was extended. In...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Biological control; Egg parasitoid; Parasitism capacity.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262012000400020

Biological characteristics of Trichogramma pretiosum and Trichogramma acacioi (Hym.: Trichogrammatidae), parasitoids of the avocado defoliator Nipteria panacea (Lep.: Geometridae), on eggs of Anagasta kuehniella (Lep.: Pyralidae)
Provedor de dados: 52
Autores: Pratissoli,Dirceu; Zanuncio,José Cola; Vianna,Ulysses Rodrigues; Andrade,Josimar Souza; Zanotti,Luiz Carlos Marozzi; Silva,Alexandre Faria da.
The objective of this investigation was to study Trichogramma pretiosum and T. acacioi (Hymenoptera: Trichogrammatidae), parasitoids of the avocado defoliator Nipteria panacea (Lepidoptera: Geometridae) on the eggs of the alternative host Anagasta kuehniella (Lepidoptera: Pyralidae) aiming to use them for biological control of this pest in avocado orchards. The cubic model presented better adjustment for duration of the life cycle of T. pretiosum and T. acacioi with the host A. kuehniella which shows that development rate of these species increases with temperature within the range tested. The number of individuals of both Trichogramma species emerged per egg from this host was higher than one. The quadratic model was significant for viability of T....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avocado; Trichogramma; Alternative host; Mass rearing.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100002

BIOLOGICAL CONTROL: A SUSTAINABLE MANAGEMENT OPTION FOR INVASIVE SPECIES  (PowerPoint Presentation)
Provedor de dados: 31
Autores: Delfosse,   Ernest S.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/32818

Biological control and bioactive microbial metabolites: a coffee quality perspective
Provedor de dados: 64
Autores: Chalfoun,Sara Maria.
The improvement of techniques of biological control and the use of metabolites produced by microorganisms to obtain products that can be applied in various fields, is getting stronger in face of the undeniable advantages in relation to the models currently in adopted. This review, besides general considerations about the principles and the application of measures of biological control and usage of metabolites produced by microorganisms as sustainable alternatives for the agrochemical segment, among others, reports theexperience lived by the author and the institutions to which she is associated, concerning identification, characterization and development of a biological fungicide resulting from the encapsulation of the fungus Cladosporium cladosporioides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological fungicides; Fungus metabolites; Coffee; Cladosporium cladosporioides (Fres.) de Vries.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542010000500001

Biological control and biorational pesticides for fall armyworm management.
Provedor de dados: 14
Autores: CRUZ, I.; BRUCE, A.; SEVGAN, S.; AKUTSE, K. S.; MOHAMED, F. S.; NIASSY, S.; RANGASWAMY, M.; SIDHU, J.; GOERGEN, G.; RWOMUSHANA, I.; KASINA, M.; BA, M.; ABOAGYE, E.; STEPHAN, D.; WENNMANN, J.; NEERING, E.; MUSHOBAZI, W.
bitstream/item/191839/1/Biological-control-1.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Lagarta do cartucho; Pesticida; Praga de Planta; Biological control.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1098120

Biological Control in Brazil: an overview
Provedor de dados: 63
Autores: Parra,José Roberto Postali.
The use of Biological Control methods is on the increase, mainly as a result of the mobilization of human resources in entomology studies since the establishment of graduate programs in this country in the 1960s. This review approaches the retrospective of Biological Control in Brazil in recent decades, with an emphasis on the "culture of applying agrochemicals" adopted by Brazilian growers, which constrains progress in this area. Successful cases of Biological Control have been reported on in Brazil and there are, in fact, excellent programs in place that use insects or entomopathogenic microrganisms for insect pest control. Most of the studies in this area have been published in Portuguese and are, therefore, not readily available internationally....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tropical agriculture; Entomology; Integrated pest management; Sustainable agriculture.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000500012

Biological control in Brazil: proposta apresentada.
Provedor de dados: 14
Autores: SA, L. A. N. de; GHINI, R.; MELO, I. S. de.
bitstream/item/160049/1/1992FL004-Sa-Biological-2400.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: EMBRAPA; CNPDA; Painel.; Controle Biológico.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/11765

Biological Control in Organic Production: First choice or last option?
Provedor de dados: 21
Autores: Speiser, Bernhard; Wyss, Eric; Maurer, Veronika.
"Biological agriculture" is a synonym for organic farming, but the term was developed independently from ‘biological control’. Therefore, it cannot be taken for granted that all methods of biological control are acceptable or even a first choice in organic farming. In this chapter, we explore the attitude of organic farming towards methods of biological control. Although organic farming has become popular during the last decade, organic farms are still a minority in all countries.     Furthermore there is a lack of profound knowledge about the regulatory framework for organic farming (i.e. public regulations and private standards). Therefore, we will firstly give a brief introduction to organic farming.
Tipo: Book chapter
Palavras-chave: Regulation Values; Standards and certification.
Ano: 2006
URL: http://orgprints.org/8357/1/speiser%2Detal%2D2006%2Dbiological_control%2Dpreprint.pdf

Biological control of apple scab and fire blight by the application of the non-pathogenic bacterium Pseudomonas fluorescens Bk3 to the leaf surface
Provedor de dados: 21
Autores: Schmoock, S.; Kürkcüoglu, S.; Gau, A. E.
The biological control of plant diseases by application of antagonistic microorganisms to  the plant phyllosphere is an alternative strategy to prevent the frequent treatment of plants  by pesticides. Microbiological antagonists can firstly interact directly against the pathogen  by releasing antimicrobial compounds and/or secondly induce the plant resistance of the  host plant by expression of pathogenesis-related proteins (PR proteins). The focus of our  study is on the interaction of the non-pathogenic bacterium Pseudomonas fluorescens Bk3  to the plant phyllosphere of Malus domestica cv. Holsteiner Cox. After application of P.  fluorescens Bk3 to the phyllosphere of M. domestica cv. Holsteiner Cox we observed  dramatic changes in the protein...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2008
URL: http://orgprints.org/13736/1/306%2D309.pdf

Biological control of banana black Sigatoka disease with Trichoderma
Provedor de dados: 65
Autores: Cavero,Poholl Adan Sagratzki; Hanada,Rogério Eiji; Gasparotto,Luadir; Coelho Neto,Rosalee Albuquerque; Souza,Jorge Teodoro de.
Black Sigatoka disease caused by Mycosphaerella fijiensis is the most severe banana disease worldwide. The pathogen is in an invasive phase in Brazil and is already present in most States of the country. The potential of 29 isolates of Trichoderma spp. was studied for the control of black Sigatoka disease under field conditions. Four isolates were able to significantly reduce disease severity and were further tested in a second field experiment. Isolate 2.047 showed the best results in both field experiments and was selected for fungicide sensitivity tests and mass production. This isolate was identified as Trichoderma atroviride by sequencing fragments of the ITS region of the rDNA and tef-1α of the RNA polymerase. Trichoderma atroviride was as effective...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antagonists; Fungicide sensitivity; Mass production; Mycosphaerella fijiensis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000600951

Biological Control of Charcoal Rot of Mungbean by Trichoderma harzianum and Shoot Dry Biomass of Sisymbrium irio
Provedor de dados: 87
Autores: JAVAID,A.; AFZAL,L.; SHOAIB,A.
ABSTRACT: A pot experiment was carried out for the biological control of charcoal rot on mung bean (Vigna radiata), caused by Macrophomina phaseolina. Pot soil was made sick with an inoculum of M. phaseolina. Dried powdered leaves of Sisymbrium irio, a weed from the Brassicaceae family, were mixed in soil at 1, 2 and 3% (w/w) with and without the application of Trichoderma harzianm, a fungal biological control agent. The highest grain yield (3.62 g pot-1) was recorded in a combined application of T. harzianum and 1% S. irio leaf amendment, which was 62% and 805% higher than negative and positive control treatments, respectively. The application of S. irio leaf amendment and T. harzianum generally enhanced leaf protein, sugar and chlorophyll contents, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Charcoal rot; Macrophomina phaseolina; Plant physiology; Sisymbrium irio; Trichoderma harzianum; Vigna radiata.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100274

Biological control of common bunt (Tilletia tritici) in organic farming
Provedor de dados: 21
Autores: Borgen, Anders; Davanlou, Mehrnaz.
Common bunt (Tilletia tritici syn. T. caries) is a significant seed borne plant disease in organic agriculture. General measures in ecological crop protection like crop rotation and manuring practice has in practice failed to control this disease, and direct seed treatment therefore seems to be necessary to ensure yield and food quality. Current study indicate that biological control can give successful control without negative effects on seed germination vigour. A combination of biocontrol agents and milk powder improves the effect of the biocontrol. Application of compost to the soil increases the frequency of this disease. The potential role of biocontrol within the principles of ecological disease management is being discussed.
Tipo: Journal paper
Palavras-chave: Post harvest management and techniques Crop health; Quality; Protection Breeding; Genetics and propagation Cereals; Pulses and oilseeds.
Ano: 2000
URL: http://orgprints.org/1122/2/biocontrol.htm

Biological control of cucumber and sugar beet damping-off caused by Pythium ultimum with bacterial and fungal antagonists
Provedor de dados: 21
Autores: Georgakopoulos, D. G.; Fiddaman,  P.; Leifert, C.; Malathrakis, N. E.
Aims: Five bacterial strains belonging to Bacillus subtilis , Pseudomonas fluorescens and Ps . corrugata and two fungal strains belonging to Trichoderma viride and Gliocladium virens were evaluated for their efficacy in controlling sugar beet and cucumber damping-off caused by Pythium ultimum . Methods and Results: The in vitro antagonistic activity of bacteria against various Pythium spp. was evaluated with dual cultures in various media. Pseudomonas strains inhibited the pathogen better than Bacillus strains. To identify potentially useful antagonist combinations, dual compatibility of antagonists was also evaluated, based on growth in two liquid media containing substrate previously used by other antagonists. Four pairs of bacteria were selected. Sugar...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Soil biology.
Ano: 2002
URL: http://orgprints.org/10764/1/georgakopoulos_et_al_2002.pdf

Biological control of Culex (Culex) saltanensis Dyar, (Diptera, Culicidae) through Bacillus thuringiensis israelensis in laboratory and field conditions
Provedor de dados: 104
Autores: Zequi,João A. C.; Lopes,José.
Culex (Culex) saltanensis Dyar, 1928 can become a problem in urban centers because they reproduce abundantly in ponds organically enriched. It is vector of the Plasmodium spp. and Crithidia ricadoi Sibajev et al. 1993. This research verifies the efficacy of Bacillus thuringiensis israelensis on C. saltanensis in two temperature situations, both in laboratory and field conditions. LC50 for C. saltanensis immatures fourth instar, was 0.154 ppm and the LC95 was 0.248 ppm an average temperature of 25.7ºC. When exposed at a constant temperature of 12±1ºC and a photoperiod of 14L:10D, had its susceptibity decreased in 1.50 times in reation to LC50, when compared to room temperature. B. thuringiensis israelensis is highly efficient in the control of this mosquito...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioassay; Mosquito control; Immature Culicidae.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000100020

Biological control of fire blight in pear orchards with a formulation of Pantoea agglomerans strain Eh 24
Provedor de dados: 58
Autores: Özaktan,Hatice; Bora,Tayyar.
Biological control by using epiphytic bacteria against Erwinia amylovora has been considered as an alternative method for controlling the disease. Talc-based formulation of Pantoea agglomerans strain Eh-24 was applied at 30% and 100% bloom on two pear orchards which were selected from different locations in the Aegean Region in Turkey. Pear orchard trials were replicated for two years (1999 and 2000) in each place. Talc-based formulation of P. agglomerans strain Eh-24 was sprayed on pear trees which were naturally infected with E. amylovora. In the orchard trials conducted in 1999 and 2000, talc-based formulation of P. agglomerans strain Eh-24 reduced the percentage of blighted blossoms on pear orchards by 63% to 76%, approximately. Copper...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Fire blight; Antagonistic bacteria; Pantoea agglomerans (Erwinia herbicola); Erwinia amylovora.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000200010

Biological control of Frankliniella occidentalis on table grapevine using predation and plant association
Provedor de dados: 21
Autores: EL KHOURY HANNA, Youssef.
Since 1989-90, Frankliniella occidentalis (Pergande) has been classified as the most harmful insect for table grapes after Lobesia botrana ( Den et Schiff.)Cultivar “Italia”, the most economically-relevant table grapes variety in Apulia, is  susceptible to Frankliniella occidentalis  which induces typical halo spots symptoms. Many conventional and IPM control methods have been developed to limit the attacks of this pest. In contrast little has been made for the biological control in the vineyard. This present work aims on one hand to verify the damage of Frankliniella in the presence of attractive blue flowers of Phacelia tanacetifolia, and on the other to evaluate the predation efficiency of the predator Orius. In that context, Phacelia tanacetifolia,...
Tipo: Thesis
Palavras-chave: Crop health; Quality; Protection.
Ano: 2002
URL: http://orgprints.org/6471/1/YossefElkhoury02.pdf

Biological control of fruit flies in Brazil
Provedor de dados: 86
Autores: Paranhos,Beatriz Jordão; Nava,Dori Edson; Malavasi,Aldo.
Abstract: Fruit flies are the main pests of fruit growing in Brazil. They have been managed predominantly with the use of insecticides applied as cover spray and or/as toxic baits. Currently, the trend of management strategies is toward the adoption of methods that cause the lowest environmental impact in large areas. In this context, biological control is an excellent option to be used together with other management strategies, such as sterile insects, because it leaves no residues, does not disturb nontarget pests, and can be permanent if the natural enemy establishes itself in the field. This review paper addresses the current knowledge on the biological control of fruit flies in Brazil, highlighting the great biodiversity of its natural enemies,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control programs; Braconidae; Classical biological control; Diptera; Figitidae; Natural biological control.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000101900

Biological Control of Giant Reed (Arundo donax): Economic Aspects
Provedor de dados: 31
Autores: Seawright,   Emily K.; Rister,   M. Edward; Lacewell,   Ronald D.; Sturdivant,   Allen W.; Goolsby,   John A.; McCorkle,   Dean A.
Arundo donax is a large, invasive weed consuming large quantities of water in the riparian area of the Texas Rio Grande Basin.  With water availability a concern to the area, the USDA-ARS is investigating biological control agents to increase available water, creating a benefit to both the region’s economy and society in general.
Tipo: Conference Paper or Presentation
Palavras-chave: Arundo donax; Giant Reed; Water; Economics; Invasive; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/46740

Biological control of golden apple snail, Pomacea canaliculata by Chinese soft-shelled turtle, Pelodiscus sinensis in the wild rice, Zizania latifolia field
Provedor de dados: 63
Autores: Dong,Shengzhang; Zheng,Guowan; Yu,Xiaoping; Fu,Changhuan.
The wild rice, Zizania latifolia Turcz, used to be one of the important aquatic vegetables cultivated in China. Recently, the golden apple snail - GAS (Pomacea canaliculata (Lamarck)) was found to be a major invasive pest attacking Z. latifolia. To control efficiently GAS, predation by the Chinese soft-shelled turtles (Pelodiscus sinensis) on GAS was evaluated in laboratory and field trials. P. sinensis had a strong predatory capacity and selectivity for GAS both in laboratory and field conditions. All the sizes of P. sinensis prefer to capture smaller snails. The optimum number of P. sinensis released in Z. latifolia field was dependent on the density of over-wintered GAS, and varied between 30 and 50 turtles per 666.7 m². The number of GAS declined in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Invasive pest; Predatory capacity; Turtles; Snails.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000200009

Biological Control of Insect Pests: Southeast Asian Prospects
Provedor de dados: 31
Autores: Waterhouse,   Doug F.
Biological control programs have been mounted in some region(s) of the world against 13 of the 16 dossier pests and substantial or partial success has been achieved in one or more countries for 8. On the basis of available information there are good to excellent prospects for reducing, in at least some parts of the region, the damage caused by the following: Leucinodes orbonalis , Nezara viridula , Ophiomyia phaseoli and Planococcus citri . There are also good reasons for believing that there will prove to be valuable natural enemies for the following: Agrius convolvuli, Anomis flava , Aphis craccivora , Aphis gossypii , Diaphorina citri , Dysmicoccus brevipes , Hypothenemus hampei , Phyllocnistis citrella and Trichoplusia ni . There seems to be little...
Tipo: Report
Palavras-chave: Crop Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/114831

Biological control of invasive plant species: stochastic economic analysis
Provedor de dados: 31
Autores: Chalak-Haghighi,   Morteza; Ruijs,   Arjan; van Ierland,   Ekko C.
We analysed to what extent the stochastic effects of two biological control agents (i.e. weevils and mycoherbicides) affect the optimal choice of Californian thistle control. A stochastic, dynamic optimisation model was set up to analyse strategies that maximise the expected net present values. We analysed the cost-effective strategies to control the thistle for deterministic and stochastic cases. Results show that the stochasticity of the efficacy of weevils does not affect the optimal strategy. Compared to the deterministic case, however, mycoherbicides will be introduced at a higher level of weed density if we take the stochastic effect of mycoherbicides into account.
Tipo: Conference Paper or Presentation
Palavras-chave: Stochastic; Optimisation; Biological control; Californian thistle; Economics.
Ano: 2009
URL: http://purl.umn.edu/48153

Biological control of kiwifruit and tomato bacterial pathogens
Provedor de dados: 21
Autores: Balestra, Dr Giorgio M.; Rossetti, Dr Antonio; Quattrucci, Dr Alessio.
Biocontrol of bacterial pathogens is effected by using cupric salts associate to appropriate agronomical practices such as seed certification, irrigation and fertilization.  In in vitro and in in vivo tests, aqueous extracts from Allium sativum and Ficus carica fruits reduce the survival and the damages (disease incidence and disease severity) caused by bacterial pathogens of kiwifruit (Pseudomonas syringae pv. syringae, Pseudomonas viridiflava) and of tomato (Pseudomonas syringae pv. tomato) plants. In vitro tests, both vegetal extracts show antimicrobial activity against all bacterial strains utilised at different concentrations (106 – 108 cfu ml-1). In vivo tests Allium sativum and Ficus carica extracts confirm their antimicrobial activity on P. s. pv....
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Greenhouses and coverings.
Ano: 2008
URL: http://orgprints.org/13148/1/Balestra_13148_ed.doc

Biological control of leatherjackets using insect pathogens OF0116T
Provedor de dados: 21
Autores: Chandler, David.
Leatherjackets (Tipula spp.; larvae of crane flies) are significant pests affecting the organic farming sector. Effective non-chemical methods of protecting organic crops from leatherjackets have not yet been developed, although insect pathogens are a promising method for biological control of these pests. This study will aim to identify and evaluate fungi, nematodes and the bacterium Bacillus thuringiensis for their effectiveness as control agents. The pathogens will be sourced from the HRI resource collection. Selected isolates of pathogens with known activity to dipteran pests will be screened in bioassays against laboratory-reared leatherjackets. Virulent isolates will be examined in detail both in laboratory experiments and glasshouse trials on a...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds Vegetables.
Ano: 1998
URL: http://orgprints.org/7861/1/Biological_control_of_leatherjackets_using_insect_pathogens_OF0116T.pdf

Biological control of Mycosphaerella fragariae in strawberry culture
Provedor de dados: 22
Autores: Heling, Anderson Luis; Kuhn, Odair José; Stangarlin, José Renato.
The Mycosphaerella spot is one of the main foliar diseases of strawberry, degrating great leaf regions and reducing the photosynthetic area. Its control is mainly by the use of chemical fungicides, but, due the increasing demand for food free of pesticide, alternative control methods have been researched, such as biological control. This work aimed to evaluate the effect on strawberry plants, treated with the biological control agents Bacillus cereus, Saccharomyces boulardii and Saccharomyces cerevisiae, in the severity of Mycosphaerella fragariae, productivity and in the activity of β-1.3 glucanases, peroxidases and chitinases enzymes. It was verified that S. cerevisiae and B. cereus treatments were similar to fungicide for disease control. However, even...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Controle alternativo; Bacillus cereus; Saccharomyces boulardii; Saccharomyces cerevisiae.
Ano: 2015
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/9544

Biological control of mycotoxin-producing molds
Provedor de dados: 64
Autores: Medeiros,Flávio Henrique Vasconcelos de; Martins,Samuel Julio; Zucchi,Tiago Domingues; Melo,Itamar Soares de; Batista,Luis Roberto; Machado,José da Cruz.
Mycotoxins are produced by the secondary metabolism of many fungi and can be found in almost 25% of the world's agricultural commodities. These compounds are toxic to humans, animals, and plants and therefore, efforts should be made to avoid mycotoxin contamination in food and feed. Besides, up to 25% of all harvested fruits and vegetables are lost due to storage molds and/or mycotoxin contamination and many methods have been applied to mitigate these issues, but most of them rely on the use of fungicides. Although chemicals are often the first defensive line against mycotoxigenic fungi, the indiscriminate use of fungicides are awakening the public perception due to their noxious effects on the environment and human/animal health. Thus, there is an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biocontrol; Microbial antagonists; Postharvest decay; Food safety.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000500001

Biological control of Penicillium italicum, P. digitatum and P. expansum by the predacious yeast Saccharomycopsis schoenii on oranges
Provedor de dados: 58
Autores: Pimenta,Raphael S.; Silva,Francisco L.; Silva,Juliana F.M.; Morais,Paula B.; Braga,Danúbia T.; Rosa,Carlos A.; Corrêa Jr.,Ary.
In this study we evaluated the ability of Saccharomycopsis schoenii Nadson and Krassiln (UWO-PS 80-91) as biocontrol agent against plant pathogenic filamentous fungi P. expansum Link (UFMG 01-2002), P. italicum Wehmer (LCP 61.1199), and P. digitatum (Pers.: Fr.) (LCP 984263, LCP 68175 and LCP 4354). S. schoenii was able to reduce disease severity in oranges inoculated with all fungi. Among the phytopathogens, P. digitatum LCP4354 was the most virulent whereas P. digitatum LCP 68175 was the most susceptible to predation. The yeast was able to survive for 21 days on the fruit surface and did not produce lesions on oranges. Production of antagonistic substances by S. schoenii was not detected using standard techniques. Our results point to the potential use...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Orange; Postharvest disease; Penicillium; Saccharomycopsis schoenii.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000100020

Biological control of phytopathogenic fungi by endophytic actinomycetes isolated from maize (Zea mays L.)
Provedor de dados: 52
Autores: Costa,Francisco Gheler; Zucchi,Tiago Domingues; Melo,Itamar Soares de.
This work aimed a survey on the biodiversity of maize endophytic actinomycete, and an evaluation of their potential to control the phytopathogenic fungi. From several regions of São Paulo state, 40 strains were isolated from the healthy maize plants. The identification of these strains, based on morphological properties and fatty acid methyl ester (FAME) profile showed that most of them belonged to the Streptomyces genus. These isolates were first screened for the growth inhibition of phytopathogenic fungi and results showed that all the isolate were able to inhibit the development of at least one tested pathogen. Two selected isolates were then evaluated for the control of P. aphanidermatum in cucumber (Cucumis sativa L.) under greenhouse conditions....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Endophytes; Actinomycete; Streptomyces; Pythium aphanidermatum; Dumping-off.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000600009

Biological control of phytophagous arthropods in the physic nut tree Jatropha curcas L. in Brazil
Provedor de dados: 1
Autores: Fernandes, Flávio Lemes; Fernandes, Maria Elisa de Sena; Lopes, Elisângela Novais; Venzon, Madelaine; Diniz, Juno Ferreira da Silva; Dias, Luis Antônio dos Santos.
Jatropha curcas has a high biofuel oil content, which could replace polluting fuels, and has great potential for large scale monoculture cultivation in the conventional system. We explored the occurrence, spatial distribution and the functional response of the main phytophagous species of this plant and their natural enemies to explore the potential for conservative biological control. We began sampling phytophagous species and predators when J. curcas plants were six months old. The most common species of phytophagous insects were nymphs and adults of Empoasca kraemeri, followed by Frankliniella schultzei and Myzus persicae. Among the predators, Ricoseius loxocheles, Iphiseioides zuluagai, Araneidae, larvae and adults of Psyllobora vigintimaculata and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Predators; Parasitoids; Phytophagy; Spatial distribution; Functional response Entomologia Agrícola.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17562

Biological control of Phytophthora nicotianae and organic media standardization in citrus nurseries.
Provedor de dados: 21
Autores: SALEM, Assem.
Investigations were carried out for the biological control of Phytophthora nicotianae (citrus root rot) on two citrus rootstocks (Sour orange and Troyer citrange) transplanted in organic and conventional substrates, treated with the semi-commercial product Clonotri (Trichoderma harzianum and Clonostachys rosea) and Metalaxyl-M as a chemical control. Clonotri was more efficient than the chemical treatment increasing plant high and weight. Organic products (Chitosan, Quillaia, Equiseto and Clonotri) were evaluated for seed treatments as alternative to copper, for the control of P. nicotianae and Rhizoctonia solani during seed storage and germination. Clonotri (10, 20 ml/l), Chitosan (10 g/l) and Equiseto (20g/l) showed the best results. A standardization of...
Tipo: Thesis
Palavras-chave: Crop health; Quality; Protection Fruit and berries Composting and manuring.
Ano: 2005
URL: http://orgprints.org/7006/1/Assem_Salama05.pdf

Biological control of Phytophthora root rot of avocato with microorganisms grown in organic mulches
Provedor de dados: 58
Autores: Costa,Jefferson L. da S.; Menge,John A.; Casale,Willian L.
Organic mulches colonized with microbial biocontrol agents, termed bioenhanced mulches, were tested for their ability to reduce Phytophthora root rot of avocado (Persea americana Mill.). Benomyl-resistant mutants of Gliocladium virens (KA 230-1) and Trichoderma harzianum (KA 159.2) isolated from suppressive soils and selected as efficient antagonists of P. cinnamomi were evaluated for their ability to colonize different mulches under controlled laboratory conditions. Sudangrass and a coarse yardwaste were found to be better substrates than a fine yardwaste, woodwaste or rice hulls for biocontrol agents propagules production. The most suitable conditions for colonization were an optimum temperature of 24°C, a moisture content of 20% for sudangrass and 30%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytophthora cinnamoni; Gliocladium virens; Trichoderma harzianum; Avocado.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000400002

Biological control of Polyphagotarsonemus latus (Banks) by the predatory mite Amblyseius largoensis (Muma) on sheltered pepper production in Cuba
Provedor de dados: 100
Autores: Rodríguez,Héctor; Montoya,Adrián; Miranda,Ileana; Rodríguez,Yaritza; Depestre,Tomás L.; Ramos,Mayra; Badii-Zabeh,Mohammad H.
The effectiveness of Amblyseius largoensis (Muma) (Acari: Phytoseiidae) for regulating Polyphagotarsonemus latus (Banks) (Acari: Tarsonemidae) populations in pepper crops was evaluated in a greenhouse, protected microplots and a tunnel system. A. largoensis were released at the densities of 2, 4 and 8 predators per plant in the greenhouse. In the microplot and tunnel systems, only four predators per plant were released. Broad mite population densities were evaluated weekly by sampling young leaves from the top of the plants. All three released rates of A. largoensis significantly (p &lt; 0.05) controlled broad mite populations in the greenhouse; however, the control effect was delayed when only two predatory mites were released. On the other hand,...
Tipo: Journal article
Palavras-chave: Broad mite; Tarsonemidae; Phytoseiidae; Capsicum annuum; Release rate.
Ano: 2015
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522015000100011

Biological control of potato black scurf by rhizosphere associated bacteria
Provedor de dados: 58
Autores: Tariq,Mohsin; Yasmin,Sumera; Hafeez,Fauzia Y.
The present work was carried out to study the potential of plant rhizosphere associated bacteria for the biocontrol of potato black scurf disease caused by Rhizoctonia solani Khun AG-3. A total of twenty-eight bacteria isolated from diseased and healthy potato plants grown in the soil of Naran and Faisalabad, Pakistan were evaluated for their antagonistic potential. Nine bacterial strains were found to be antagonistic in vitro, reduced the fungal growth and caused the lysis of sclerotia of R. solani in dual culture assay as well as in extracellular metabolite efficacy test. The selected antagonistic strains were further tested for the production and efficacy of volatile and diffusible antibiotics, lytic enzymes and siderophores against R. solani. Selected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Potato black scurf; Rhizobacteria; Pseudomonas; Rhizoctonia solani.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200026

Biological control of Rhizoctonia solani in tomatoes with Trichoderma harzianum mutants
Provedor de dados: 69
Autores: Montealegre,Jaime; Valderrama,Luis; Sánchez,Soledad; Herrera,Rodrigo; Besoain,Ximena; Pérez,Luz María.
Biocontrol of Rhizoctonia solani in tomatoes cultivated under greenhouse and field conditions was analyzed using the Trichoderma harzianum mutants Th650-NG7, Th11A80.1, Th12A40.1, Th12C40.1 and Th12A10.1 and ThF2-1, respectively. Their innocuousness on tomato cultivars 92.95 and Gondola (greenhouse assays), and on cultivar Fortaleza (field assays) was established. Alginate pellets (1.7 g pellets/L soil) containing c.a1 x 10(5) colony forming units (cfu)/g pellet were applied to a soil previously inoculated with R. solani at transplant (greenhouse) or to a naturally infected soil (field). Controls considered parental wild strains, a chemical fungicide and no additions. Th11A 80.1, Th12A10.1 and Th650-NG7 prevented the 100% mortality of tomato plants cv....
Tipo: Journal article
Palavras-chave: Bioantagonism; Field assays; Greenhouse assays; Root rot; Tomato.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000200001

Biological control of rice brown spot with native isolates of three Trichoderma species
Provedor de dados: 58
Autores: Khalili,Elham; Sadravi,Mehdi; Naeimi,Shahram; Khosravi,Vahid.
Brown spot caused by Bipolaris oryzae is an important rice disease in Southern coast of Caspian Sea, the major rice growing region in Iran. A total of 45 Trichoderma isolates were obtained from rice paddy fields in Golestan and Mazandaran provinces which belonged to Trichoderma harzianum, T. virens and T. atroviride species. Initially, they were screened against B. oryzae by antagonism tests including dual culture, volatile and nonvolatile metabolites and hyperparasitism. Results showed that Trichoderma isolates can significantly inhibit mycelium growth of pathogen in vitro by producing volatile and nonvolatile metabolites Light microscopic observations showed no evidence of mycoparasitic behaviour of the tested isolates of Trichoderma spp. such as coiling...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rice brown spot; Biocontrol; Trichoderma harzianum; T. virens; T. atroviride.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000100035

Biological Control of Salvinia molesta in Sri Lanka: An Assessment of Costs and Benefits
Provedor de dados: 31
Autores: Doeleman,   Jacobus A.
Tipo: Report
Palavras-chave: Crop Production/Industries.
Ano: 1989
URL: http://purl.umn.edu/113874

Biological control of the cherry fruit fly, Rhagoletis cerasi L. (Diptera, Tephritidae)  by use of entomopathogenic nematodes: first experiences towards practical  implementation.
Provedor de dados: 21
Autores: Herz, Annette; Köppler, Kirsten; Vogt, Heidrun; Elias, Ellen; Peters, Arne; Katz, Peter.
The use of entomopathogenic nematodes (EPN) is a promising approach to control the cherry fruit  fly, Rhagoletis cerasi L.. We already demonstrated the high potential of EPN to infect larvae after  leaving the cherry for pupation in the soil in laboratory and field experiments. For practice, an application  technique is needed, that is both, grower- and EPN friendly. We tested a tractor mounted  spray boom for treatment under the canopy area. The achieved rate of EPN in the soil met the expectations.  The activity of EPN in soil samples was high after application, but dropped to 60% of the  initial activity within one week. Exact forecasting of larval drop from cherries is another major challenge.  To obtain basic data, we recorded the phenology of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006
URL: http://orgprints.org/13795/1/ecofruit_12th_12.pdf

Biological control of the cherry fruit fly, Rhagoletis cerasi L. (Diptera, Tephriti-dae) by use of entomopathogenic nematodes: first experiences towards practi-cal implementation.
Provedor de dados: 21
Autores: Herz, Annette; Köppler, Kirsten; Vogt, Heidrun; Elias, Ellen; Katz, Peter; Peters, Arne.
The use of entomopathogenic nematodes (EPN) is a promising approach to control the cherry fruit fly, Rhagoletis cerasi L.. We already demonstrated the high potential of EPN to infect larvae after leaving the cherry for pupation in the soil in laboratory and field experiments. For practice, an appli-cation technique is needed, that is both, grower- and EPN friendly. We tested a tractor mounted spray boom for treatment under the canopy area. The achieved rate of EPN in the soil met the ex-pectations. The activity of EPN in soil samples was high after application, but dropped to 60% of the initial activity within one week. Exact forecasting of larval drop from cherries is another major chal-lenge. To obtain basic data, we recorded the phenology of infestation...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006
URL: http://orgprints.org/8819/1/ecofruit_12th_12.pdf

Biological control of the strawberry mite by using predatory mites
Provedor de dados: 21
Autores: Tuovinen, Tuomo.
Strawberry mite control by Neoseiulus cucumeris has proven economically feasible. To achieve a better integration of biocontrol with growing techniques and outdoor conditions development of alternative approaches by native phytoseiid species are required.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection.
Ano: 2003
URL: http://orgprints.org/6190/1/strawb.pdf

Biological control of Thrips tabaci in the field – possibilities and practical limits
Provedor de dados: 21
Autores: Jung, Kerstin.
Field trials against Thrips tabaci, an economically important pest insect, were conducted in 2003 at four different sites in Germany. The effect of the combined use of entomopathogenic nematodes and fungi on thrips should be investigated, in comparison to the effect of either pathogen alone. Commercially available products, Mycotal® (Koppert NL), PreFeRal® (Biobest BE), Naturalis L® (Intrachem IT), Nemaplus® and Nemagreen® (both E-Nema DE), were used. The trials were performed in onion, leek and chives, according to the EPPO guideline PP 1/85(3). Perfekthion® was used as chemical standard in onion. In leek, Spruzit® and Neudosan® were applied alternately. No chemical standard was applied in chives. The biocontrol products were applied either alone or in a...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Vegetables.
Ano: 2008
URL: http://orgprints.org/15258/1/Jung%2D2008%2DThripse_IOBC_bull_31_p344%2D348.pdf

Biological control of Verticillium black spot of Japanese radish using Bacillus spp. and genotypic differentiation of selected antifungal Bacillus strains with antibiotic marker
Provedor de dados: 19
Autores: Kawai, Ayako; Kusunoki, Kaori; Aiuchi, Daigo; Koike, Masanori; Tani, Masayuki; Kuramochi, Katsuhisa; 川井, 彩子; 楠木, 芳; 相内, 大吾; 小池, 正徳; 谷, 昌幸; 倉持, 勝久.
Bacillus species can form endospores and have broad-spectrum activity of their antibiotics. For that reason, they offer several advantages over other bacteria for protection against root pathogens. This work was intended to determine the ability of Bacillus spp. to inhibit Verticillium dahliae. First, antagonistic activities of Bacillus spp. were studied in greenhouse trials. These results suggest that the bacterium can control soil-borne diseases. Secondly, to investigate the situation in a culture environment, Bacillus spp. were examined for their activity to control Verticillium black spot of Japanese radish and plant-growth promotion rhizobacteria (PGPR) effects in a field. After 2 months, these bacteria reduced Verticillium black spot of Japanese...
Palavras-chave: Bacillus spp.; Biological control; Verticillium black spot of Japanese radish; Verticillium dahliae.
Ano: 2006
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/97

Biological Control of Water Hyacinth 2
Provedor de dados: 31
Autores: Julien,   Mic H.; Griffiths,   M.W.; Stanley,   J.N.
Tipo: Report
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/117717

Biological control of water hyacinth on Lake Victoria, Kenya
Provedor de dados: 20
Autores: Ochiel, G.R.S.; Mailu, A.M.; Gitonga, W.; Njoka, S.W.
The Kenya Agricultural Research Institute (KARI) imported 12 800 curculionid weevils (Neochetina spp.) from Benin, Uganda, South Africa and Australia for biological control of water hyacinth between 1993 and1998. In 1996, KARI’s rearing and quarantine facility at the National Agricultural Research Centre, Muguga, provided initial “breeding stock” to another rearing facility at the National Fibre Research Centre, Kibos, near Lake Victoria. To date, 36 500 weevils and 42 000 weevil eggs have been produced from Kibos. About 2000 weevils were produced each month from plants grown in plastic basins, galvanized corrugated iron sheet tanks and a polypropylene rearing pool. Between January 1997 and August 1998, KARI released 36 250 Neochetina weevils at 27 sites...
Tipo: Proceedings Paper
Palavras-chave: AQUATIC WEEDS; HYACINTH; BIOLOGICAL CONTROL; LAKE VICTORIA; KENYA Freshwater plants Aquatic weeds Water hyacinth http://aims.fao.org/aos/agrovoc/c_15267.
Ano: 1998
URL: http://hdl.handle.net/1834/1275

Biological Control of Water Hyacinth: The weevils Neochetima bruchi and N. eichhorniae Biologies, Host Ranges, and Rearing, Releasing and Monitoring Techniques for Biological Control of Eichhornia crassipes
Provedor de dados: 31
Autores: Julien,   Mic H.; Griffiths,   M.W.; Wright,   Anthony D.
Tipo: Report
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/114819

Biological Control of Weeds: Southeast Asian Prospects
Provedor de dados: 31
Autores: Waterhouse,   Doug F.
Tipo: Technical Report
Palavras-chave: Crop Production/Industries.
Ano: 1994
URL: http://purl.umn.edu/119354

Biological Control of Weeds: Theory and Practical Application
Provedor de dados: 31
Autores: Julien,   Mic H.; White,   Graham.
Tipo: Report
Palavras-chave: Crop Production/Industries.
Ano: 1997
URL: http://purl.umn.edu/117150

Biological control of white mold by Trichoderma harzianum in common bean under field conditions
Provedor de dados: 86
Autores: Carvalho,Daniel Diego Costa; Geraldine,Alaerson Maia; Lobo Junior,Murillo; Mello,Sueli Corrêa Marques de.
Abstract: The objective of this work was to evaluate Trichoderma harzianum isolates for biological control of white mold in common bean (Phaseolus vulgaris). Five isolates were evaluated for biocontrol of white mold in 'Perola' common bean under field conditions, in the 2009 and 2010 crop seasons. A commercial isolate (1306) and a control treatment were included. Foliar applications at 2x109 conidia mL-1 were performed at 42 and 52 days after sowing (DAS), in 2009, and at 52 DAS in 2010. The CEN287, CEN316, and 1306 isolates decreased the number of Sclerotinia sclerotiorum apothecia per square meter in comparison to the control, in both crop seasons. CEN287, CEN316, and 1306 decreased white mold severity during the experimental period, when compared to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Sclerotinia sclerotiorum; Antagonists; Hyperparasitism; Soilborne pathogen.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001201220

Biological Control of Woolly Apple Aphid (Eriosoma lanigerum HAUSM.) with Aphelinus mali HALD.
Provedor de dados: 21
Autores: Hetebrügge, K.; Fieger-Metag, N.; Kienzle, J.; Bathon, H.; Zebitz, C.P.W.; Zimmer, J.
The release of Aphelinus mali HALD. from artificial rearing for the control of Woolly Apple Aphid (Eriosoma  lanigerum HAUSM.) was tested in field trials. The release of adults proved to be more suitable than the release  of cards with parasitized mummies as practised in the first trial. Setting free adult A. mali at the beginning of  June reduced the aphid population, though its efficiency was not high enough to prevent damage of the trees  totally. The practical applications of A. mali in early spring (after blossom) were not effective because climatic  conditions were not suitable enough. The fertility of A. mali depends on temperature and light intensity.  The application of Micula (rape oil) and T-S forte reduced the growth of the aphid population...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006
URL: http://orgprints.org/13764/1/ecofruit_12th_6.pdf

Biological Control Pacific Prospects - Supplement 1
Provedor de dados: 31
Autores: Waterhouse,   Doug F.; Norris,   K.R.
Tipo: Report
Palavras-chave: Crop Production/Industries.
Ano: 1989
URL: http://purl.umn.edu/118040

Biological Control Pacific Prospects - Supplement 2
Provedor de dados: 31
Autores: Waterhouse,   Doug F.
Tipo: Technical Report
Palavras-chave: Crop Production/Industries.
Ano: 1993
URL: http://purl.umn.edu/118696

Biological Cycle of Susceptible and Glyphosate-Resistant Sourgrass Biotypes in Two Growth Periods
Provedor de dados: 87
Autores: FERREIRA,S.D.; EXTECKOETTER,V.; GIBBERT,A.M.; BARBOSA,J.A.; COSTA,N.V.
ABSTRACT: Selecting glyphosate-resistant Digitaria insularis may cause changes in the biological cycle of the species. Therefore, the objective of this study was to evaluate the biological cycle of susceptible and glyphosate-resistant D. insularis biotypes in two growth periods (summer/autumn and autumn/winter). Seeds were collected in the municipality of Alagoa Grande (07o02’59" S 35o37’01,5" W), and were considered susceptible (S1), in Cascavel (24o55’27" S 53o27’54.6 ”W) considered as resistant 1 (R1), Entre Rios do Oeste (24o40’44" S 54o17’05" W) considered as resistant 2 (R2) and Marechal Cândido Rondon (24o42’30" S 54o21’10" W) considered as resistant 3 (R3). Evaluations were carried out in the summer/autumn and autumn/winter periods. The collection...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digitaria insularis; Growth analysis; Weed; Chemical control.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100276

BIOLOGICAL EFFECTIVENESS OF ONION PLANT PROTECTION SCHEME
Provedor de dados: 196
Autores: Bondarenko, Anastasia; Tyutyuma, Natalya.
The average yield of bulb onions is still quite low. The purpose of this study was to improve the techniques and methods of cultivating onions using new generation preparations against the background of N180P60K60 in a drip irrigation method. To achieve the objective of this study, field surveys, observations and measurements were carried out using generally accepted methods. The experimental data obtained from the studies were processed using analysis of variance in Excel, which is part of the Microsoft Office installation package. Field experience included both background application of mineral fertilizers, as well as integrated nutrition of plants with Aminofol Plus and Novosil bulb onion growth stimulants and its biological protection with drugs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bulb onions; Processing; Herbicide; Trips; Weeds; Yield; Bulbo de cebolas; Processamento; Herbicida; Viagens; Ervas daninhas.
Ano: 2022
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6930

Biological effects of an aqueous extract of Salix alba on the survival of Escherichia coli AB1157 cultures submitted to the action of stannous chloride
Provedor de dados: 48
Autores: SOUZA,RAPHAEL S S; ALMEIDA,MARCELA C; MANOEL,CRISTIANO V; SANTOS-FILHO,SEBASTIÃO D; FONSECA,ADENILSON S; FILHO,MARIO BERNARDO.
Stannous chloride (SnC12) is used in nuclear medicine as a reducing agent to obtain technetium-99m-radiopharmaceuticals. It have been reported that natural products might reduce the genotoxic and cytotoxic effects related to SnC12. This work evaluated the biological effects of an aqueous extract of Salix alba on the survival of Escherichia coli (E. coli) AB1157 (wild type) cultures submitted to the action of SnC12. E. coli AB1157 cultures (exponential growth phase) were collected by centrifugation, washed and resuspended in 0.9%NaCl. Samples were incubated in water bath shaker with: (a) SnC12 (25mg/ml), (b)Salix alba extract(11.6mg/ml) and (c)SnC12(25mg/ml) + Salix alba extract (11.6mg/ml). Incubation with 0.9% NaCl was also carried out (control). At 60...
Tipo: Journal article
Palavras-chave: Escherichia coli; Free radicals; Salix alba; Stannous chloride.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000200008

Biological evaluation of crude and degummed oil from Moringa oleifera seeds
Provedor de dados: 52
Autores: Fátima Andrade,Graziela de; Melo,Tânia Márcia Sacramento; Guedes,Cláudia Dumans; Novack,Kátia Monteiro; Santos,Rinaldo Cardoso dos; Silva,Marcelo Eustáquio.
The aim of this work was to evaluate the oil extracted from Moringa oleifera (fam. Moringaceae) seeds from the nutritional standpoint. Nutritional evaluation of crude or degummed moringa oil or soybean oil (as a control) involved the determination of the Food Efficiency (FE) in male Fisher rats and the fatty acid composition of the moringa oil. Hepatic and renal functions were assessed by measuring serum transaminases activity and urea and creatinine concentrations, respectively. Serum cholesterol and triglycerides, alkaline phosphatase, total proteins and albumine were also measured. Results showed that FE was slightly increased by the crude moringa oil while no differences were found between the soybean and degummed moringa oil regarding this parameter....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Moringa oleifera oil; Degummed oil; Biological evaluation.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000500018

Biological evaluation of recombinant human erythropoietin in pharmaceutical products
Provedor de dados: 56
Autores: Ramos,A.S.; Schmidt,C.A.; Andrade,S.S.; Fronza,M.; Rafferty,B.; Dalmora,S.L.
The potencies of mammalian cell-derived recombinant human erythropoietin pharmaceutical preparations, from a total of five manufacturers, were assessed by in vivo bioassay using standardized protocols. Eight-week-old normocythemic mice received a single subcutaneous injection followed by blood sampling 96 h later or multiple daily injections with blood sampling 24 h after the last injection. Reticulocyte counting by microscopic examination was employed as the end-point using the brilliant cresyl blue or selective hemolysis methods, together with automated flow cytometry. Different injection schedules were investigated and dose-response curves for the European Pharmacopoeia Biological Reference Preparation of erythropoietin were compared. Manual and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recombinant human erythropoietin; Bioassay; Polycythemia; Reticulocyte counting; Normocythemic mice.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001100014

Biological insect control using Metarhizium anisopliae: morphological, molecular, and ecological aspects
Provedor de dados: 65
Autores: Tiago,Patricia Vieira; Oliveira,Neiva Tinti de; Lima,Elza Áurea de Luna Alves.
Microbial control of insects is based on the rational use of pathogens to maintain environmentally balanced pest population levels, and Metarhizium anisopliae has been the most studied and most utilized fungal species for that purpose. The natural genetic variability of entomopathogenic fungi is considered one of the principal advantages of microbial insect control. The inter- and intraspecific variability and the genetic diversity and population structures of Metarhizium and other entomopathogenic fungi have been examined using ITS-RFLP, ISSR, and ISSP molecular markers. The persistence of M. anisopliae in the soil and its possible effects on the structures of resident microbial communities must be considered when selecting isolates for biological insect...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Metarhizium anisopliae; Molecular markers.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000400012

Biological Invasion Risks and the Public Good: an Economic Perspective
Provedor de dados: 7
Autores: Perrings, Charles; University of York; cap8@york.ac.uk; Williamson, Mark; University of York; mw1@york.ac.uk; Barbier, Edward B; University of Wyoming; ebarbier@uwyo.edu; Delfino, Doriana; University of York; dd109@york.ac.uk; Dalmazzone, Silvana; University of Turin; silvana.dalmazzone@unito.it; Shogren, Jason; University of Wyoming; jramses@uwyo.edu; Simmons, Peter; University of York; ps1@york.ac.uk; Watkinson, Andrew; University of East Anglia; A.Watkinson@uea.ac.uk.
We postulate that the causes of the problem of invasive alien species are primarily economic and, as such, require economic solutions. Invasive alien species are of increasing concern for four reasons. First, introductions are increasing sharply, while mechanisms for excluding or eradicating alien species have been either withdrawn or progressively weakened. Both trends are due to the liberalization of and increase in international travel and trade, an economic phenomenon. Second, the costs of invasions are rising rapidly due partly to increasing human population density, and partly to increasing intensity of production in genetically impoverished agricultural systems. Third, biological invasions are associated with a high degree of uncertainty both...
Tipo: Peer-Reviewed Reports
Palavras-chave: Invasive species.
Ano: 2002

Biological Invasions: The Case of Soybean Aphid Infestation
Provedor de dados: 31
Autores: Kim,   C.S.; Schaible,   Glenn D.; Garrett,   Lynn; Lubowski,   Ruben N.; Lee,   Donna J.
Soybeans, the second highest cash crop following corn in the U.S., have come under attack by invasive species, the soybean aphid from the North and soybean rust from the South.  We estimated the economic losses resulting from soybean aphid infestation by using a dynamic equilibrium model.  Results indicate that, first, the reduction of soybean production resulting from soybean aphid infestation is largely absorbed by reducing soybean exports, due to the higher price elasticity of export demand compared to the domestic demand.  Second, the economic losses to U.S. soybean producers would grow on average annually between $12.8 million and $23.4 million during the first five years of infestation.  In the longer-run, soybean producers would suffer greater...
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/21163

Biological Management of Basal Rot of Onion by Trichoderma harzianum and Withania somnifera
Provedor de dados: 87
Autores: AKHTAR,R.; JAVAID,A.
ABSTRACT: Onion is attacked by destructive soil-borne fungal plant pathogen Fusarium oxysporum f. sp. cepae, resulting in basal rot disease. In the present study, three Trichoderma species (T. pseudokoningii, T. harzianum and T. reesei) and leaves of solanaceous weed Withania somnifera were used for management of this disease. The in vitro interaction study revealed T. harzianum as the most effective biocontrol agent against the pathogen. In a pot trial, dried leaf material of W. somnifera (1%, 2% and 3% w/w) and inoculum of T. harzianum were mixed in the pot soil previously inoculated with the pathogen. The highest incidence of the disease (87%) was found in positive control (pathogen inoculation without any amendment). Different rates of dry leaf...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Basal plate rot; Biological control; Weed; Withania somnifera.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100216

BIOLOGICAL MANUFACTURING AND INDUSTRIALIZATION OF PRODUCTION AGRICULTURE
Provedor de dados: 31
Autores: Boehlje,   Michael; Gray,   Allan W.
Farming is in the midst of a major transformation—not only in technology and production practices, but also in size of business, resource control and operation, business model and linkages with buyers and suppliers. Both the livestock and grain sectors are changing from an industry dominated by family-based, small and modest size, relatively independent firms to one of generally larger businesses following an industrial business model that are more tightly aligned across the value chain. We describe some of the fundamental concepts and characteristics of biological manufacturing and then illustrate these characteristics with a brief description of three modern farming businesses. The characteristics include: attribute driven or differentiated products, a...
Tipo: Working or Discussion Paper
Palavras-chave: Biological manufacturing; Closed loop systems; Process control; Precision technology; Farm Management; Production Economics; Q12; Q120.
Ano: 2009
URL: http://purl.umn.edu/54025

Biological Maturity Status and Motor Performance in Fourteen-Year-old Basketball Players
Provedor de dados: 77
Autores: Jakovljevic,Sasa; Macura,Marija; Radivoj,Mandic; Jankovic,Nenad; Pajic,Zoran; Erculj,Frane.
The aims of this study were to detect biological maturity and certain athletic skills in boys aged 14 participating in competitive basketball, and to compare certain athletic skills of participants according to their biological maturity status. The participants were most talented Serbian basketball players (n= 49) who were divided into three groups according to their maturity status: early (n= 14), average (n= 24) and late maturing (n= 11). Biological maturity status of participants was assessed by technique developed by Mirwald et al. (2002). Nine tests of basic athletic skills: vertical jump, medicine ball throwing, run at 20, 30 and 50 m, agility t-test, zigzag agility drill, agility run 4x15 m, the line drill, as well as four basketball skills field...
Tipo: Journal article
Palavras-chave: Chronological age; Biological age; Motor abilities; Basketball skills.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200035

Biological nitrogen fixation in soybean under water restriction and exposed to 1-methylcyclopropene
Provedor de dados: 86
Autores: Nascimento Junior,Vitor Camargo do; Prete,Cássio Egidio Cavenaghi; Nogueira,Marco Antonio.
Abstract: The objective of this work was to assess the effects of 1-methylcyclopropene (1-MCP) on traits related with biological nitrogen fixation on 'BRS 268' soybean (Glycine max) subjected to water restriction. Plants were either exposed to drought between 32 (R2) and 47 (R3) days after sowing (DAS) or kept well-watered, in combination with exposure or not to 1-MCP. On the second day under drought (34 DAS), plants from both water conditions were exposed to 1-MCP in a hermetically sealed chamber for 15 hours. Control plants, dry or well-watered, that were not exposed to 1-MCP were kept in a separate chamber. At 36 (R2) and 47 (R3) DAS, shoot and root dry weights, leaf area index, number and dry weight of nodules, total ureides in sap, and N concentration...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bradyrhizobium; Glycine max; Inhibitor of ethylene; Nodulation; Water stress.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000700818

Biological, nutritional, and histochemical basis for improving an artificial diet for Bracon hebetor Say (Hymenoptera: Braconidae)
Provedor de dados: 82
Autores: Magro,Sandra R.; Dias,Alcides B.; Terra,Walter R.; Parra,José R.P.
The biology of Bracon hebetor Say (Hymenoptera: Braconidae) reared on fifth instars of Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) (natural diet) and in vitro (artificial diet) was evaluated. Data on the number of instars, development time and food intake were collected, and histochemical tests were conducted to detect proteins and lipids in the parasitoid's digestive tract. The data disclosed differences that can help to improve artificial rearing of B. hebetor. B. hebetor had three instars in both diets, but the developmental time on the artificial diets was prolonged due to the increase in larval and pupal development times. Larvae grew faster on the natural host and required a lower food intake (2.7 µl) as compared to that required by the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Fatty acid; Idiobiont; Nutritional requirement; Protein.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000200010

Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs
Provedor de dados: 86
Autores: Carvalho,Gabriel dos Santos; Silva,Luciana Barboza; Reis,Soislan Sousa; Veras,Maisa Sousa; Carneiro,Eliane; Almeida,Mayra Layra dos Santos; Silva,Alexandre Faria da; Lopes,Gleidyane Novais.
Abstract: The objective of this work was to determine the biological parameters and thermal requirements of Trichogramma pretiosum TM strain reared on Helicoverpa armigera eggs. A card containing 20 eggs of H. armigera was offered for each T. pretiosum female, at temperatures of 18, 20, 22, 25, 28, 30 and 32°C. All life stages of T. pretiosum were observed under the given temperature conditions. The optimum temperature for the parasitism of T. pretiosum was 25°C, and the highest longevity was found at the same temperature. The highest parasitoid emergence rates occurred at temperatures of 22, 25 and 28°C. The highest proportion of T. pretiosum individuals emerged per egg was observed at 18°C. Concerning the sex ratio, the highest proportion of females...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichogrammatidae; Biological control; Parasitoid; Temperature.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001100961

Biological parameters of Cydnodromus picanus and Phytoseiulus persimilis raised on the carmine spider mite, Tetranychus cinnabarinus (Acari: Phytoseiidae, Tetranychidae)
Provedor de dados: 118
Autores: Tello,Víctor; Vargas,Robinson; Araya,Jaime; Cardemil,Antonieta.
The postembryonic development, consumption and life table parameters of Cydnodromus picanus Ragusa and Phytoseiulus persimilis (Athias-Henriot) were studied at 29.44 ± 1.47 °C and 42.35 ± 5.01% of RH with a photoperiod of 14:10 h (L:D) in order to evaluate the potential of these predators for feeding on the carmine spider mite Tetranychus cinnabarinus (Boisduval). Eggs, larvae and protonymphs of T cinnabarinus may be optimal food for C. picanus, which obtained survival rates of 100%, 97% and 93%, respectively, on them. The survival of P persimilis was around 6.7% with diets based on eggs, larvae and protonymphs, showing a high mortality level by dehydration when fed with eggs. The time of the postembryonic development was significantly shorter (p &lt;...
Tipo: Journal article
Palavras-chave: Biological control; Life table; Postembryonic development; Predation.
Ano: 2009
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000200012

Biological parameters of Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) assayed with Bacillus thuringiensis berliner
Provedor de dados: 63
Autores: Polanczyk,Ricardo Antonio; Alves,Sérgio Batista.
The bacterium Bacillus thuringiensis (Bt) is a promising control agent of Spodoptera frugiperda (J.E. Smith). Besides the lethal effect on hosts, the entomopathogen may cause physiological alterations that hinder insects' feeding intake and reproduction. Larval and female pupa weight, oviposition and egg fecundity were determined in second instar S. frugiperda larvae infected with 39 Bt isolates in four bioassays. Sublethal effects were observed in the follow isolates: ESALQ 1.1, ESALQ 1.4, ESALQ 1.6, ESALQ 3.7, ESALQ 4.2 and ESALQ 5.2 (larval and female pupae weight); ESALQ 5.1 (larval weight); ESALQ 1.2 and ESALQ 3.7 (egg fecundity); ESALQ 3.7 (oviposition and egg fecundity); ESALQ 3.7 and ESALQ 5.2 (oviposition). Significant correlations were observed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Entomopathogen; Fall armyworm; Sublethal effects.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000500009

Biological, physiological, immunological and nutritional assessment of farm-reared Litopenaeus stylirostris shrimp affected or unaffected by vibriosis
Provedor de dados: 5
Autores: Mugnier, Chantal; Justou, Carole; Lemonnier, Hugues; Patrois, Jacques; Ansquer, Dominique; Goarant, Cyrille; Le Coz, Jean-rene.
Shrimp aquaculture in New Caledonia is subject to seasonal mortalities during grow-out due to highly virulent Vibrio nigripulchritudo (Vn). To understand the mechanisms affecting shrimp resistance and leading to significant mortality, a shrimp ecophysiology and immunology survey was conducted on two farms, the first considered as a "control" farm (HC), the second affected by the disease (DF). Mortality observed during the survey at DF started 50 days after stocking and was typical of this disease. The main observations regarding shrimp were: (a) growth was not affected by the disease and was faster in the DF than in the HC pond; (b) disease did not affect one sex more than the other, or a specific part of the population in terms of weight; (c) the physical...
Tipo: Text
Palavras-chave: Vibriosis; Penaeid shrimp; Field survey; Physiology; Immunology; Nutritional status.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00176/28764/27567.pdf

Biological processes dominate phosphorus dynamics under low phosphorus availability in organic horizons of temperate forest soils
Provedor de dados: 21
Autores: Pistocchi, Chiara; Mészáros, Éva; Tamburini, Federica; Frossard, Emmanuel; Bünemann, Else Katrin.
Understanding the mechanisms underlying phosphorus (P) availability is important to predict forest productivity in a changing environment. We quantified P fluxes and traced P from plant litter into inorganic and organic soil P pools in organic horizons from two contrasting temperate forest soils with low and high inorganic P availability, respectively. We incubated the two organic horizons with and without litter after labelling the soil solution with 33P and performed sequential extractions at several time points in order to trace P dynamics in labile (water-extractable, available and microbial P) and non-labile (non-living organic P, P bound to iron and aluminium and P bound to calcium) pools. Under low P availability, P fluxes were dominated by gross P...
Tipo: Journal paper
Palavras-chave: Soil quality.
Ano: 2018
URL: http://orgprints.org/34708/1/Pistocchi-etal-2018-SoilBiolBiochem-Vol126-p64-75.pdf

Biological properties of medicinal plants: a review of their antimicrobial activity
Provedor de dados: 80
Autores: Silva,NCC; Fernandes Júnior,A.
Plants have been used for thousands of years to flavor and conserve food, to treat health disorders and to prevent diseases including epidemics. The knowledge of their healing properties has been transmitted over the centuries within and among human communities. Active compounds produced during secondary vegetal metabolism are usually responsible for the biological properties of some plant species used throughout the globe for various purposes, including treatment of infectious diseases. Currently, data on the antimicrobial activity of numerous plants, so far considered empirical, have been scientifically confirmed, concomitantly with the increasing number of reports on pathogenic microorganisms resistant to antimicrobials. Products derived from plants may...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Medicinal plants; Phytochemistry; Antimicrobial activity; Plant extracts; Essential oils; Synergism.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000300006

Biological response of spontaneously hypertensive rats to the streptozotocin administration
Provedor de dados: 52
Autores: Costa,Virginia Alice Vieira da; Vianna,Lucia Marques.
The sensitivity of adult spontaneously hypertensive rats (SHR) to the diabetogenic effect of streptozotocin (STZ) was studied. The animals were subdivided into three groups: control (citrate buffer), streptozotocin 40 mg/kg or 50 mg/kg, and general biologic parameters were analyzed, in addition to systolic blood pressure, blood glucose and insulin levels determinations. Both doses were able to induce hyperglycemia above 300 mg/dl; however, 50 mg/kg provoked a more pronounced physiological alterations in body weight, diuresis, water and food intake. There was no change on systolic blood pressure with either dose. Results suggested that SHRs did not need doses of streptozotocin above 40mg/kg in order to produce diabetes probably because this strain was much...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Streptozotocin; SHR; Diabetes; Blood pressure; Insulin.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100006

Biological responses to disturbance from simulated deep-sea polymetallic nodule mining
Provedor de dados: 5
Autores: Jones, Daniel O. B.; Kaiser, Stefanie; Sweetman, Andrew K.; Smith, Craig R.; Menot, Lenaick; Vink, Annemiek; Trueblood, Dwight; Greinert, Jens; Billett, David S. M.; Arbizu, Pedro Martinez; Radziejewska, Teresa; Singh, Ravail; Ingole, Baban; Stratmann, Tanja; Simon-lledo, Erik; Durden, Jennifer M.; Clark, Malcolm R.
Commercial-scale mining for polymetallic nodules could have a major impact on the deep-sea environment, but the effects of these mining activities on deep-sea ecosystems are very poorly known. The first commercial test mining for polymetallic nodules was carried out in 1970. Since then a number of small-scale commercial test mining or scientific disturbance studies have been carried out. Here we evaluate changes in faunal densities and diversity of benthic communities measured in response to these 11 simulated or test nodule mining disturbances using meta-analysis techniques. We find that impacts are often severe immediately after mining, with major negative changes in density and diversity of most groups occurring. However, in some cases, the mobile fauna...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00371/48212/48330.pdf

Biological soil loosening by grasses from genus Brachiaria in crop-livestock integration
Provedor de dados: 1
Autores: Flávio Neto, José; Severiano, Eduardo da Costa; Costa, Kátia Aparecida de Pinho; Guimarães Junnyor, Wellingthon Silva; Gonçalves, Wainer Gomes; Andrade, Renata.
Soil compaction associated with pastures degradation can decrease animal productivity, forage longevity and compromise environmental sustainability. To confront this serious issue, the loosening potential of forages should be recognized. We evaluated the least limiting water range as indicator of biological loosening potential in relation to cultivation of grasses the genus Brachiaria in crop-livestock integration. We also evaluated the water availability to soybean crop that succeeded these grasses. Our studies were performed in two stages. In the first stage, we divided 32 plots into four randomized blocks in which we cultivated corn combined with following treatments: 1 - Brachiaria brizantha cultivar Marandu; 2 - Xaraes; 3 - Piata; 4 - MG4; 5 - B....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 50101021 pasture recovery; Soil structural quality; Least limiting water range Física do Solo.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19392

Biological traits and Life table parameters A and B biotype of Bemisia tabaci (Genn.) on cotton and rapeseed
Provedor de dados: 52
Autores: Samih,Mohammad Amin; Zarabi,Mehdi; Yazdani,Maryam; Rouhani,Mohammad.
The aim of this work was to construct life table of Bemisia tabaci (Gen.) A and B (silverleaf whitefly B. argentifolii Bellows and Perring) biotype (Hem.: Aleyrodidae) on two host plants; cotton, (Gossypium hirsutum L.) and rapeseed, (Brassica napus L.). Experiments were conducted in a growth chamber under 24 ± 2ºC, 55±3% RH and 16:8 (L:D) h photoperiod on caged plants of cotton G. hirsutum L. (Varamin 76 variety) and rapeseed B. napus L. (global variety. The intrinsic rate of natural increase (r m), net reproductive rate (R0) and mean generation time (T) for B. tabaci A biotype was 0.1010 females per female per day, 18.4075 females per female and 30.079 day (d) on cotton; 0.1286, 30.6760 and 26.77 d on rapeseed; and for B biotype (B. argentifolii) those...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bemisia argentifolii; Bemisia tabaci; Cotton; Life-table; Rapeseed.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000300001

Biologie van de Jacobskruidaardvlo: Longitarsus jacobaeae: en internationale ervaringen met de beheersing van Jacobskruiskruid
Provedor de dados: 21
Autores: Bos, M.
Jacobskruiskruid (Jacobaea vulgaris, synoniem: Senecio jacobaea) is een van oorsprong in de zeeduinen voorkomende plant die uitstekend is aangepast aan veranderende omstandigheden op verschralende zandgronden. Daardoor komt de plant sinds de jaren ’70 in toenemende mate voor in weilanden. Omdat Jacobskruiskruid giftig is, is de aanwezigheid in weiland ongewenst.  Zodra het in grasland voorkomt, blijkt het echter slecht beheersbaar, zelfs niet met herinzaai.   Deze studie voorziet in een overzicht van bestaande internationale kennis en ervaring rond de Jacobskruidaardvlo Longitarsus jacobaeae in de biologische bestrijding van Jacobskruiskruid.  Met deze Nederlandse keversoort zijn in het buitenland reeds positieve ervaringen opgedaan, maar in Nederland is...
Tipo: Report
Palavras-chave: Weed management.
Ano: 2010
URL: http://orgprints.org/17282/1/Bos%2C_M._2010%2D011_Biologie_van_JacobskruidaardvloLongitarsus_jacobaeae_%2D_Internetversie.pdf

Biologische Behangsregulierung im Kernobstbau
Provedor de dados: 21
State of the Art:  A partly well working method to thin surplus flowers in spring is the rope machine. However with older trees it doesn’t work sufficiently in the inner parts of the tree. Also the device must be used very softly in order to prevent physical and physiological damages to the trees.   Definition of the problem:  In several countries organic apple growers can use lime sulphur for flower thinning to regulate the crop load on the apple trees. In Switzerland, however, no spray product is allowed for early crop load regulation to control bi-annual bearing in organic apple growing. This is a key problem for organic apple growers in terms of high labour costs for manual thinning and in terms of high difficulties to achieve good quality fruit every...
Tipo: Project description
Palavras-chave: Fruit and berries.
Ano: 2023

Biologische Bekämpfung ausgewählter Schadinsekten mit Hilfe von Pilzen und durch Förderung der natürlichen Feinde
Provedor de dados: 21
Insektenpathogene Pilze sind wichtige natürliche Regulatoren von Insektenpopulationen. Bei bodenbewohnenden Arten oder Entwicklungsstadien sind es in erster Linie Hyphomyceten. Für die Anwendung zur Schädlingsregulierung eignen sich besonders Beauveria brongniartii und Metarhizium anisopliae. Ersterer ist an der FAL als Mycoinsektizid entwickelt worden und ist zur Bekämpfung von Engerlingen des Maikäfers im Handel. Die Erfahrungen haben gezeigt, dass das Potenzial dieses Produktes noch nicht ausgeschöpft und Verbesserungen möglich sind. Andere Bodenschädlinge, besonders Drahtwürmer, verursachen zunehmende Probleme, die möglicherweise mit dem Pilz Metarhizium anisopliae gelöst werden können. Im Biolandbau treten zahlreiche Schädlinge an oberirdischen...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023
URL: http://orgprints.org/5149/1/Keller%2D2005%2Dbiologische%2DRegulierung%2Dvon%2DSchaderregern.pdf

Biologische Bekämpfung der Blutlaus Eriosoma lanigerum HAUSM. durch den Einsatz der Blutlauszehrwespe Aphelinus mali HALD.
Provedor de dados: 21
Autores: Hetebrügge, K.; Fieger-Metag, N.; Kienzle, J.; Zebitz, C.P.W.; Zimmer, J.
The release of Aphelinus mali HALD. from artificial rearing for the control of Woolly Apple Aphid (Eriosoma lanigerum HAUSM.) was tested in field trials. The release of adults proved to be more suitable than the release of cards with parasitized mummies as practised in the first trial. Setting free adult A. mali at the beginning of June reduced the aphid population, though its efficiency was not high enough to prevent damage of the trees totally. The practical applications of A. mali in early spring (after blossom) were not effective because climatic conditions were not suitable enough. The fertility of A. mali depends on temperature and light intensity.   The application of Micula (rape oil) and T-S forte reduced the growth of the aphid population...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2006
URL: http://orgprints.org/8808/1/ecofruit_12th_6.pdf

Biologische Bekämpfung von Drahtwürmern mit entomopathogenen Pilzen
Provedor de dados: 21
Autores: Eckard, Sonja; Ansari, Minshad Ali; Schweizer, Christian; Butt, Tariq M.; Grabenweger, Giselher.
We investigated the virulence of three European isolates of the entomopathogenic fungus (EPF) Metarhizium anisopliae against three wireworm species which are important pests of arable crops and vegetables in Europe: Agriotes lineatus, A. obscurus and A. sputator. In laboratory experiments, up to 90 % of the wireworms were killed by the fungus, depending on the fungal isolate and the wireworm species. Speed of kill was generally low with first wireworms showing unambiguous signs of fungal disease after two to three weeks. Maximum mortality rates were reached after six to eight weeks post inoculation. The next steps of this investigation will be to determine the most suitable fungal isolate and the validation of the laboratory results under greenhouse and...
Tipo: Conference paper, poster, etc.
Palavras-chave: "Organics" in general Crop husbandry Soil Crop health; Quality; Protection.
Ano: 2013
URL: http://orgprints.org/21438/1/21438_Eckard.pdf

Biologische Bekämpfung von Rhizoctonia solani im ökologischen Anbau mit Hilfe von bakteriellen und pilzlichen Antagonisten
Provedor de dados: 21
Rhizoctonia solani Kühn ist ein weit verbreiteter bodenbürtiger Erreger, der an verschiedenen Kulturen für ökonomisch relevante Ertragsverluste verantwortlich ist. Der Erreger R. solani ist aufgrund seiner sowohl saprophytischen als auch parasitischen Eigenschaften sowie seiner persistenten Dauerorgane (Sklerotien) schwer zu bekämpfen. Seine Fähigkeit auch an Nichtwirtspflanzen seinen Lebenszyklus vollenden zu können, erschwert die Kontrolle über Fruchtfolgen, die insbesondere im organischen Landbau Teil der Bekämpfungsstrategie gegen bodenbürtige Erreger sind. Probleme durch R. solani treten im ökologischen Anbau vor allem an Kartoffeln auf. Derzeit stehen dem ökologischen Anbau keine geeigneten Strategien zur Bekämpfung des Erregers zur Verfügung. Ziel...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023

Biologische Bekämpfung von Rhizoctonia solani im ökologischen Anbau mit Hilfe von bakteriellen und pilzlichen Antagonisten
Provedor de dados: 21
Autores: Grosch, Rita; Lottmann, Jana; Faltin, Franziska; Berg, Gabriele.
Rhizoctonia solani Kühn ist ein weit verbreiteter bodenbürtiger Erreger, der an verschiedenen Kulturen für ökonomisch relevante Ertragsverluste verantwortlich ist. Der Erreger R. solani ist aufgrund seiner sowohl saprophytischen als auch parasitischen Eigenschaften sowie seiner persistenten Dauerorgane (Sklerotien) schwer zu bekämpfen. Seine Fähigkeit auch an Nichtwirtspflanzen seinen Lebenszyklus vollenden zu können, erschwert die Kontrolle über Fruchtfolgen, die insbesondere im organischen Landbau Teil der Bekämpfungsstrategie gegen bodenbürtige Erreger sind. Probleme durch R. solani treten im ökologischen Anbau vor allem an Kartoffeln auf. Derzeit stehen dem ökologischen Anbau keine geeigneten Strategien zur Bekämpfung des Erregers zur Verfügung. Ziel...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2003
URL: http://orgprints.org/3970/1/3970%2Dble%2Digz%2D2003%2Drhizoctonia.pdf

Biologische bestrijding van echte meeldauw in zomerbloemen
Provedor de dados: 21
Autores: Slootweg, Casper.
In de biologische teelt van zomerbloemen ondervinden de telers veel last van bovengrondse schimmelaantastingen (echte meeldauw, roest en bladvlekkenziekten). In dit project is een lijst met een tiental potentiële middelen tegen schimmels in buiten geteelde biologische zomerbloemen samengesteld. Voor veel van deze middelen bleek er geen zicht op een toelating, zodat het opnemen in een veldproef niet zinvol was.    Er zijn vier middelen in een veldproef opgenomen:  - Spuitzwavel (toegelaten)  - Twee middelen met toelating in andere teelten  - Eén experimenteel middel
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Netherlands Ornamentals; Flower bulbs and tree nurseries.
Ano: 2010
URL: http://orgprints.org/19160/1/Biologische_bestrijdeing_van_echte_meeldauw_in_zomerbloemen.pdf

Biologische Helminthenkontrolle bei Weidetieren mit nematophagen Pilzen
Provedor de dados: 21
Autores: Hertzberg, Hubertus; Larsen, Michael; Maurer, Veronika.
Die Kontrolle gastrointestinaler Nematoden bei Weidetieren basiert seit fünf Jahrzehnten nahezu ausschließlich auf dem Einsatz von Anthelminthika. Die derzeit vor allem bei den Schaf- und Ziegennematoden weltweit zunehmende Resistenzproblematik erfordert die Entwicklung neuer, innovativer Kontrollstrategien, wobei die biologische Bekämpfung auf der Basis nematophager Pilze den derzeit erfolgversprechensten Ansatz darstellt. Erste Versuche zur Anwendung dieser Pilze bei Pflanzen und Tieren erfolgten bereits in den 30er Jahren, doch erst in den 90er Jahren führten Experimente zur Prüfung der Passagefähigkeit einzelner Spezies durch den Magen-Darm-Trakt von Rindern zur Isolation von Duddingtonia flagrans, womit ein maßgeblicher Fortschritt erzielt wurde....
Tipo: Journal paper
Palavras-chave: Sheep and goats; Production systems; Beef cattle; Health and welfare.
Ano: 2002
URL: http://orgprints.org/2733/1/hertzberg-et-al-2002-bmwt-helmithenkontrolle.pdf

Biologische Helminthenkontrolle bei Weidetieren mit nematophagen Pilzen
Provedor de dados: 21
Autores: Hertzberg, Hubertus.
Aufgrund ihrer weiten Verbreitung und der erheblichen Pathogenität einiger Spezies stellen gastrointestinale Nematoden bei Weidetieren ein Gesundheitsrisiko dar. Die Kontrolle dieser Parasiten basiert seit mehreren Jahrzehnten nahezu ausschliesslich auf dem Einsatz von Entwurmungsmitteln (Anthelminthika). Diese Tatsache hat speziell bei den Magen-Darm-Nematoden (MDN) der kleinen Wiederkäuer und bei den kleinen Strongyliden des Pferdes weltweit zu einer erheblichen Resistenzentwicklung geführt, von denen im Falle der ovinen MDN sämtliche kommerziell verfügbaren Anthelminthika-Klassen betroffen sind. Da sich praxisreife Alternativstrategien für die Parasitenbekämpfung bisher nicht ausreichend etablieren konnten, führt die verschärfte Resistenzlage zu einem...
Tipo: Book chapter
Palavras-chave: Production systems; Health and welfare.
Ano: 2003
URL: http://orgprints.org/2732/1/hertzberg%2D2003%2Dbio%2Dhelminthenkontrolle.pdf

Biologische Kontrolle von Eulenraupen im Kohl mittels Baculoviren
Provedor de dados: 21
Ziel des Forschungsvorhabens ist die Entwicklung und Prüfung eines biotechnischen Verfahrens für Eulenraupen (Mamestra brassicae) im Kohl mit dem eulenpathogenen Baculovirus Nukleopolyhedrovirus (MbMNPV). In kombinierten Labor- und Praxisversuchen werden die Wirksamkeit verschiedener Kombinationen und Formulierungen von MbMNPV gegenüber Mamestra brassicae und anderen Kohlschädlingen geprüft. Es werden die temperaturabhängigen Wirkungsgrade von MbMNPV- und Bt-Präparaten untereinander und in Kombinationen mit dem Wirkungsgrad eines chemischen Standards verglichen, um so den Einfluss der Witterung auf die Präparate festzustellen. Die Formulierung eines Baculovirus-Bt-Präparates wird optimiert, um die Aufnahme durch die Zielorganismen zu verbessern und dadurch...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Vegetables.
Ano: 2023

Biologische Kontrolle von Eulenraupen im Kohl mittels Baculoviren
Provedor de dados: 21
Autores: Leinhos, G. M. E.; Wahl-Ermel, B. U.; Jehle, J. A.
Baculoviren sind als hoch selektive biologische Kontrollagenzien für Kohleulenraupen (Mamestra brassicae) seit längerem bekannt und ihre gute Wirksamkeit wurde schon in verschiedenen Gewächshaus- und Freilandversuchen nachgewiesen. Um die Kontrollsituation von Kohleulenraupen im ökologischen Gemüseanbau insbesondere bei niedrigen Temperaturen zu verbessern, wurden die eulenpathogenen Mamestra brassicae Nukelopolyhedrovirus (MbMNPV) und Mamestra configurata Nukleopolyhedrovirus (MacoNPV-A) als mögliche Kontrollagentien geprüft. Es konnte gezeigt werden, dass auch MacoNPV-A für M.brassicae pathogen ist. In vergleichenden Bioassays bei 24°C zeigten MbMNPV und MacoNPV-A keinen signifikanten Unterschied hinsichtlich ihrer biologischen Aktivität gegenüber...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Vegetables.
Ano: 2004
URL: http://orgprints.org/15725/1/15725%2D01OE001%2Dble%2Ddlr_rlp%2Djehle%2D2004%2Deulenraupen.pdf

Biologische Schädlingskontrolle durch Landschaftsmanagement
Provedor de dados: 21
Autores: Thies, Carsten; Tscharntke, Teja.
In der Untersuchung wird nachgewiesen, dass die Struktur der Landschaft von wesentlicher Bedeutung für den Erfolg biologischer Schädlingskontrolle ist.Um die biologische Kontrolle von Schadinsekten in der Agrarlandschaft zu verbessern, ist das Verständnis der Beziehungen zwischen Schädlingen und Nützlingen in dem komplexen Mosaik von Lebensraum-Typen von besonderer Bedeutung. Diese werden am Beispiel des Rapsglanzkäfers dargestellt.
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds.
Ano: 2000
URL: http://orgprints.org/2076/1/2076%2Dthies%2Dc%2D2000%2Dschaedling.pdf

Biologischer Pflanzenschutz als Ökosystemleistung im integrierten Kernobstanbau
Provedor de dados: 21
Zielsetzung des beantragten Projektes ist die Bewertung der ökosystemaren Leistung natürlich vorkommender Gegenspieler (Parasitoide, Viren, Bakterien, Pilze) des Apfelwicklers in wichtigen Apfelanbauregionen Deutschlands (Altes Land, Kraichgau, Bodensee). Neben dem regionalen Vorkommen sollen auch saisonales Auftreten und ökologische Interaktionen dieser Organismen untersucht sowie potentielle Nebenwirkungen unverzichtbarer Pflanzenschutzmittel im Kernobstanbau auf die Leistung der Antagonisten geprüft werden. Darauf aufbauend werden Strategien für ihre achhaltige Erhaltung und Förderung entwickelt.Das Forschungsvorhaben besitzt zwei miteinander eng verknüpfte Aktionsbereiche: Teilprojekt A: "Invertebrate Nützlinge" (Leitung Dr. Annette Herz) und...
Tipo: Project description
Palavras-chave: Biodiversity and ecosystem services Fruit and berries Crop health; Quality; Protection.
Ano: 2023

Biologisk bekæmpelse af æbleskurv forårsaget af Venturia inaequalis, med særlig fokus på sommerstadiet
Provedor de dados: 21
Autores: Moth-Poulsen, B.Sc.stud. Agnete.
Dette bachelor-projekt beskriver, ud fra et litteraturstudium, nogle muligheder for biologisk bekæmpelse af sommerstadiet af æbleskurv (Venturia inaequalis)med antagonistiske svampe. Den eksperimentelle del omhandler screening af fem udvalgte svampe-isolater i væksthusforsøg.
Tipo: Report
Palavras-chave: Fruit and berries.
Ano: 2003
URL: http://orgprints.org/1515/1/BSc_AMP.pdf

Biologisk bekæmpelse af gråskimmel i solbær
Provedor de dados: 21
Autores: Korsgaard, Maren.
Det er en udfordring af få rentabilitet i økologisk solbærproduktion. Prisen presses af importerede saftkoncentrater og udbyttet trues af mange skadevoldere. En af skadevolderne er gråskimmel, som kan forårsage, at de umodne bær drysser af i juni måned. På initiativ af solbæravler Henrik Byrial Jacobsen gennemførte vi derfor et forsøg med biologisk bekæmpelse af gråskimmel i solbær i 2008.
Tipo: Report chapter
Palavras-chave: Fruit and berries Crop health; Quality; Protection.
Ano: 2008
URL: http://orgprints.org/27487/6/27487.pdf

Biologisk bekämpning av växtsjukdomar genom inducerad resistens
Provedor de dados: 21
Genom att exponera mottagliga växter för vissa ämnen är det möjligt att "inducera" resistens i dessa. Syftet med projektet är att genom biologisk bekämpning med miljövänliga substanser eller mikroorganismer åstadkomma inducerad resistens i våra vanliga kulturväxter. Frågor som kommer att behandlas är hur den inducerade resistensen igångsätts, vilka signaler som deltar vid induktionen, hur länge resistensen varar, hur frön och andra förökningsorgan kan induceras och hur "brett" verkande resistensen är gentemot olika patogener.
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023

Biologisk bekämpning: genetisk analys av mekanismer
Provedor de dados: 21
Fluorescerande pseudomonader är en grupp bakterier som är vanligt förekommande i jord och på olika växtdelar. De är ofta nyttiga för växter genom deras förmåga att skydda växten mot sjukdomar och/eller stimulera tillväxt och skörd. I detta projekt har vi arbetat med en fluorescerande pseudomonad som är den aktiva beståndsdelen i ett biologiskt fröbehandlingspreparat, Cedomon™, som marknadsförs av BioAgri AB (Uppsala), och som har effekt framför allt mot fröburna svampsjukdomar i stråsäd. Celler av denna bakterie som appliceras på ett frös utsida har förmågan att skydda den framväxande plantan mot svampsmitta som redan finns närvarande inne i fröet. Viktiga frågeställningar för projektet har varit: hur lyckas bakterierna åstadkomma denna s.k. biologiska...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection.
Ano: 2023
URL: http://orgprints.org/7773/1/9833047.pdf

Biologiska möjligheter till bekämpning av mykotoxinbildande fusarium
Provedor de dados: 21
Angreppen av Fusarium ökar i svensk växtodling, bland annat beroende på den kemiska bekämpningen av olika svampar som hämmar Fusarium. Det finns idag inga bra kemiska bekämpningsmedel mot Fusarium. Samtidigt ökar intresset för biologisk bekämpning. Målet med denna pilotstudie var att identifiera möjligheterna för biologisk bekämpning av Fusarium i stråsäd genom en enskild mikroorganism med flera verkningssätt, eller en blandning av mikroorganismer med kompletterande verkningssätt. Man studerade såväl befintliga kommersiella preparat som nyisoleringar av antagonister (”fiendeorganismer”). Testerna utfördes huvudsakligen på tre olika Fusariumarter.    Resultaten tyder på att flera av de undersökta mikroorganismerna har en outnyttjad potential som...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds.
Ano: 2023

Biology and air-sea gas exchange controls on the distribution of carbon isotope ratios (delta C-13) in the ocean
Provedor de dados: 5
Autores: Schmittner, A.; Gruber, N.; Mix, A. C.; Key, R. M.; Tagliabue, A.; Westberry, T. K.
Analysis of observations and sensitivity experiments with a new three-dimensional global model of stable carbon isotope cycling elucidate processes that control the distribution of delta C-13 of dissolved inorganic carbon (DIC) in the contemporary and preindustrial ocean. Biological fractionation and the sinking of isotopically light delta C-13 organic matter from the surface into the interior ocean leads to low delta C-13(DIC) values at depths and in high latitude surface waters and high values in the upper ocean at low latitudes with maxima in the subtropics. Air-sea gas exchange has two effects. First, it acts to reduce the spatial gradients created by biology. Second, the associated temperature-dependent fractionation tends to increase (decrease) delta...
Tipo: Text
Ano: 2013
URL: https://archimer.ifremer.fr/doc/00292/40354/38909.pdf

Biology and morphometrics of the immature stages of Epinotia aporema on artificial diet
Provedor de dados: 86
Autores: Arneodo,Joel; Quintana,Graciela; Sciocco-Cap,Alicia.
The objective of this work was to establish a life table for the immature stages of Epinotia aporema, as part of a wider investigation on its biological control. Insects were reared on an artificial diet at 25±1ºC and a 16:8 (light:dark) hour photoperiod. For the identification of larval instars for the study of pathogen-insect interactions under laboratory conditions, head capsule widths (HCWs) were also determined. The egg incubation period was 4.13±0.30 days, larval stage took 11.64±0.49 days, and the development time of the pupal phase was sex-dependent with 8.51±0.69 days for the females and 9.41±0.65 days for the males. Five larval instars were identified.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Bean shoot borer; Cephalic capsule; Laboratory rearing; Larvae.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000200014

Biology and nutrition of Spodoptera frugiperda (Lepidoptera: Noctuidae) fed on different food sources
Provedor de dados: 63
Autores: Silva,Débora Mello da; Bueno,Adeney de Freitas; Andrade,Karine; Stecca,Cristiane dos Santos; Neves,Pedro Manuel Oliveira Janeiro; Oliveira,Maria Cristina Neves de.
ABSTRACT: We studied Spodoptera frugiperda development using different food sources in the laboratory and field. Newly hatched larvae were fed soybean, cotton, maize, wheat, and oat leaves. An artificial diet was used as the control. Duration of pre-pupal, pupal, and larva-adult period, pupal weight, sex ratio, survival, larva feeding preferences, oviposition preferences, and nutritional quality of different hosts were evaluated. Insects fed on wheat showed the shortest larva-adult period. The insects fed on cotton and soybean had longer larval development cycles and pupae of lower weight. Feeding preference was evident for third instar larvae and did not differ between wheat, oat, maize, and soybean, which were the preferred hosts. Moths oviposited to a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural entomology; Feeding behavior; Insect-plant interactions.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000100018

Biology and parasitic potential of Doryctobracon areolatuson Anastrepha fraterculus larvae
Provedor de dados: 86
Autores: Nunes,Adrise Medeiros; Nava,Dori Edson; Müller,Fernanda Appel; Gonçalves,Rafael da Silva; Garcia,Mauro Silveira.
The objective of this work was to study the biology and parasitic potential of Doryctobracon areolatus on larvae of Anastrepha fraterculus. The egg-adult period, the sex ratio, the longevity, the pupal viability, and the parasitism rate of D. areolatus were determined in laboratory, using A. fraterculus as host. The parasitoid development from oviposition to adult emergence required 25.00±1.70 days, the sex ratio was 0.62±0.09, and the mean longevity was 16.36±3.62 days for males and 10.24±1.71 days for females. The mean parasitism rate was 53.50±8.93%, varying from 41.60 to 68.60%, which shows the potential of this parasitoid for biological control of A. fraterculus.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Biological control; Braconidae; Parasitism rate; South American fruit fly.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000600014

Biology and thermal requirements of Telenomus remus reared on fall armyworm Spodoptera frugiperda eggs
Provedor de dados: 65
Autores: Bueno,Regiane Cristina Oliveira de Freitas; Carneiro,Tatiana Rodrigues; Pratissoli,Dirceu; Bueno,Adeney de Freitas; Fernandes,Odair Aparecido.
This research aimed at studing Telenomus remus Nixon biology reared on Spodoptera frugiperda (J.E. Smith) eggs at different temperatures. Based on the development of the cycle (egg-adult), the thermal requirements and the number of parasitoid generations at constant temperatures were determined. Initially, 24-hour-old S. frugiperda eggs were submitted to parasitism by T. remus during 5 h, being then transferred to acclimatized chambers regulated at 15, 20, 25, 28, 31, and 35°C. The cycle (egg to adult) was influenced by temperature varying from 8.3±0.01 to 47.2±0.01 for females and 8.1±0.01 to 46.8±0.01 days for males at 31 and 15°C, respectively. The emergency (%) was also influenced by temperature. A reduction in emergency was observed at 15°C and no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Integrated pest management; Biological control; Eggs parasitoid; Degree-days.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000100001

Biology, management and biochemical/genetic characterization of weed biotypes resistant to acetolactate synthase inhibitor herbicides
Provedor de dados: 63
Autores: Monquero,Patrícia Andrea; Christoffoleti,Pedro Jacob; Carrer,Helaine.
Bidens pilosa and Amaranthus quitensis are major weeds infesting soybean [Glycine max L (Merrill)] fields in Brazil and Argentina. The repetitive use of acetolactate synthase (ALS EC 4.1.3.18) inhibiting herbicides in São Gabriel do Oeste, MS, Brazil and in the provinces of Córdoba and Tucumã, Argentina, has selected for resistant (R) biotypes of these weeds. Research work was developed to study the management, growth, biochemistry, and genetics of these R weed biotypes. In a field experiment it was found that chlorimuron-ethyl and imazethapyr at recommended rates (both ALS inhibitor herbicides), did not control R B. pilosa, but the alternative lactofen, fomesafen and bentazon were effective, either sprayed alone or mixed with the ALS inhibitor herbicides....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amaranthus quitensis; Bidens pilosa; Chlorimuron-ethyl; Glycine max L. Merrill; Imazethapyr.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300013

Biology of Anticarsia gemmatalis on soybean genotypes with different degrees of resistance to insects
Provedor de dados: 63
Autores: Fugi,Cristina Gomes Quevedo; Lourenção,André Luiz; Parra,José Roberto Postali.
A knowledge of the mechanisms of resistance present in genetic materials should help breeding programs in developing cultivars resistant to insects. The biology of Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae) was studied on leaves of four soybean genotypes with different degrees of resistance to insects. The genotypes evaluated were cultivars IAC 17 and IAC 24, resistant to defoliators and stink bugs, line PI 229358, a source of multiple resistance to insects and used as parent in various lines selected for resistance to A. gemmatalis, and 'IAC PL-1', the susceptible control. The experiments were carried out in the laboratory, under controlled conditions of temperature (25 ± 2ºC), relative humidity (60 ± 10%) and photoperiod (14h). First instar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Velvetbean caterpillar; Host plant resistance.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000100006

Biology of Blepyrus clavicornis (Compere) (Hymenoptera: Encyrtidae), a parasitoid of Pseudococcus viburni (Signoret) (Hemiptera: Pseudococcidae)
Provedor de dados: 92
Autores: Silva,Vitor Pacheco da; Garcia,Mauro; Botton,Marcos.
Abstract Encyrtids (Hymenoptera: Encyrtidae) are the most important and diverse group of natural enemies of mealybugs (Hemiptera: Pseudococcidae). Blepyrus clavicornis (Compere) is the most common parasitoid associated with Pseudococcus viburni (Signoret) in the Serra Gaúcha region, Brazil. We conducted laboratory studies to assess the development time, sex ratio, adult longevity, host stage selection for parasitism, and effect of food on the longevity of adult females of B. clavicornis. The experiments were conducted in a climate chamber at 25 ± 1 °C, 70 ± 10% RH and 12:12 L:D photoperiod. The solitary parasitoid B. clavicornis parasitized third-instar and adult female stages of P. viburni. The development time was more than 30 days (31.75 ± 0.38 for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Chalcidoidea; Obscure mealybug; Parasitism.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000300257

Biology of Dittrichia viscosa, a Mediterranean ruderal plant: a review
Provedor de dados: 85
Autores: Parolin,P; Ion Scotta,M; Bresch,C.
Dittrichia viscosa is a common plant species in the Mediterranean region which is adapted to a wide range of environmental stresses. It is an important species that can be used for phytoremediation, as bioaccumulator or bioindicator, and it has the potential for being employed in integrated pest management in the Mediterranean ecosystem due to its entomophilous character.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allelopathy; Bioindicator; Biological control; Dittrichia; Inula; Habitat management; Host plant; Organic horticulture.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572014000200005

Biology of Microctonus sp. (Hymenoptera: Braconidae), a parasitoid of Cyrtomon luridus BOH. (Coleoptera: Ccurculionidae)
Provedor de dados: 63
Autores: Tironi,Paulo; von Treuenfels,Adrian; Parra,José Roberto Postali.
Cyrtomon luridus (Boh.), a native insect of wild Solanaceae, has adapted to the medicinal plant Duboisia sp., introduced from Australia, causing damages up to 100% mortality. Microctonus sp. is the most important natural enemy of C. luridus and its potential for biological control was investigated in this work. This study was carried out in Arapongas, Paraná State, Brazil, from 1994 to 1996. Parasitism of C. luridus by Microctonus sp. was highest from February through June (maximum of 54% in May 1996), when the C. luridus adult population was decreasing. The female sex ratio of Microctonus sp. under natural conditions was 0.57 to 0.69, which was close to 1 male : 2 female. Production of males occurs parthenogetically (arrhenotoky). In the laboratory,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Parasitism; Medicinal plant; Duboisia.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000500012

Biology of Microplitis mediator Haliday (Hymenoptera: Braconidae) parasitizing the wheat armyworm Mythimna (Pseudaletia) sequax Franclemont (Lepidoptera: Noctuidae)
Provedor de dados: 82
Autores: Foerster,Luís A.; Doetzer,Augusta K.
The larval endoparasitoid Microplitis mediator Haliday is described for the first time in the Neotropical Region, parasitizing the wheat armyworm Mythimna (Pseudaletia) sequax Franclemont. Females successfully parasitized the four first instars of the host, with a significant preference for the second and third, in relation to either the first or fourth instars. No parasitoids emerged from caterpillars parasitized in the fifth and sixth instars. Development of M. mediator was determined at four constant temperatures between 15°C and 30°C. The duration of the egg-larval stages varied from 32.3 days at 15°C to 8.0 days at 30°C. The pupal stage lasted 24.3 and 5.1 days at 15°C and 30°C, respectively. Development of the parasitoid from oviposition to adult...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Endoparasitoid; Thermal requirement; Biological control.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000100011

Biology of Plasmopara viticola - Approach to a biological control of grapevine downy mildew
Provedor de dados: 21
Autores: Kassemeyer, Hanns-Heinz; Buche, Claudia; Unger, Sabine; Kiefer, Beate; Loffel, Kirsten; Nick, Peter; Riemann, Michael; Guggenheim, Richard; Rumbolz, Joachim.
Plasmopara viticola, the causai agent of grapevine downy mildew is very well adapted to its host pianI. Therefore it is very difficult to develop methods for the biological control which meet the requests of ecological viticulture. One of the possibilities for a biological control of grapevine downy mildew is the usage of the natural resistance potential of the European cultivars of Vitis vinifera, more exactly the induced resistance. Another way is the use of specific inhibitors which either stop the infection process or have an effect on the interaction of the pathogen with the host pianI. Whereas generai information about the resistance reactions in plants is available and the first results were also won for vine, the knowledge about inhibitors is very...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Fruit and berries.
Ano: 2002
URL: http://orgprints.org/14613/1/kiefer_127.pdf

Bioluminescent bacteria: lux genes as environmental biosensors
Provedor de dados: 58
Autores: Nunes-Halldorson,Vânia da Silva; Duran,Norma Letícia.
Bioluminescent bacteria are widespread in natural environments. Over the years, many researchers have been studying the physiology, biochemistry and genetic control of bacterial bioluminescence. These discoveries have revolutionized the area of Environmental Microbiology through the use of luminescent genes as biosensors for environmental studies. This paper will review the chronology of scientific discoveries on bacterial bioluminescence and the current applications of bioluminescence in environmental studies, with special emphasis on the Microtox toxicity bioassay. Also, the general ecological significance of bioluminescence will be addressed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteria; Bioluminescence; Lux genes; Microtox toxicity bioassay.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000200001

BIOM, Organic farmers network for Research, Development and Innovation
Provedor de dados: 21
Autores: Sukkel, ir Wijnand; van Leeuwen Haagsma, ing Wiepie; van der Wel, ing Cees.
Farmers networks are a valuable instrument for research, development and innovation in organic agriculture. The last 15 years networks of pilot farms have been used in the Netherlands to improve farm performance for integrated and organic farming.  For organic agriculture the BIOM network was set up in 1998. Participating farmers improved their farm performance amongst others by a decrease of the hand labour for weed control and a reduction of the nutrient surpluses. The network also functioned as a facility for on-farm research on various topics. Additional effects of the close contacts between par-ticipants were a closer cooperation between farmers and an incentive for innovation
Tipo: Conference paper, poster, etc.
Palavras-chave: Systems research and participatory research; Farming Systems.
Ano: 2006
URL: http://orgprints.org/7399/1/BIOM_odense.doc

Biomarkers as predictors of mortality in critically ill patients with solid tumors
Provedor de dados: 42
Autores: REIS,AUDREY M. DOS; FRUCHTENICHT,ANA V.G.; ATHAYDES,LUIZA C. DE; LOSS,SÉRGIO; MOREIRA,LUIS FERNANDO.
ABSTRACT Biochemical markers produced by the affected organ or body in response to disease have gained high clinical value due to assess disease development and being excellent predictors of morbidity and mortality. The aim of this study is to analyze different biochemical markers in critically cancer patients and to determine which of them can be used as predictors of mortality. This is a prospective, cross-sectional study conducted at a University Hospital in Porto Alegre - RS. Screening was done to include patients in the study. Serum biochemical markers obtained in the first 24 hours of Intensive Care Unit hospitalization were analyzed. A second review of medical records occurred after three months objected to identify death or Unit discharged. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intensive care; Critically ill cancer patient; Intensive care mortality; Biochemical markers.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602921

Biomass Accumulation, Photosynthetic Pigments, Osmotic Adjustments and Antioxidant Activities of Leymus chinensis in Response to BA, BR, and GA
Provedor de dados: 87
Autores: XUE-FENG,Z.; JUN,L.V.; SHAHID,M.; ANJUM,S.A.; NA-JIA,L.; XIU-JUAN,H.; YU,X.; XIAO,W.; SAN-GEN,W.
ABSTRACT: Abiotic stresses and poor biomass accumulation are chief constraints to accomplish potential yield in Leymus chinensis. An experiment was conducted to improve biomass and correlation of biomass accumulating attributes with photosynthetic pigments, osmotic substances and antioxidants under foliar application of different plant growth substances. The experiment was conducted at inner Mongolia Xilinguole, China, using a Randomized Complete Block Design and 5 replications. The treatments consisted of water (control); BA5 = application of BA (6-benzylaminopurine) at 5 mg L-1; BA25 = application of BA at 25 mg L-1; BA50 = application of BA at 50 mg L-1; BR0.02 = application of BR (brassinosteroid) at 0.02 g L-1; BR0.2 = application of BR at 0.2 mg L 1;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidants; Reactive oxygen species; Phytoregulators.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100256

Biomass changes and trophic amplification of plankton in a warmer ocean
Provedor de dados: 5
Autores: Chust, Guillem; Allen, J. Icarus; Bopp, Laurent; Schrum, Corinna; Holt, Jason; Tsiaras, Kostas; Zavatarelli, Marco; Chifflet, Marina; Cannaby, Heather; Dadou, Isabelle; Daewel, Ute; Wakelin, Sarah L.; Machu, Eric; Pushpadas, Dhanya; Butenschon, Momme; Artioli, Yuri; Petihakis, Georges; Smith, Chris; Garcon, Veronique; Goubanova, Katerina; Le Vu, Briac; Fach, Bettina A.; Salihoglu, Baris; Clementi, Emanuela; Irigoien, Xabier.
Ocean warming can modify the ecophysiology and distribution of marine organisms, and relationships between species, with nonlinear interactions between ecosystem components potentially resulting in trophic amplification. Trophic amplification (or attenuation) describe the propagation of a hydroclimatic signal up the food web, causing magnification (or depression) of biomass values along one or more trophic pathways. We have employed 3-D coupled physical-biogeochemical models to explore ecosystem responses to climate change with a focus on trophic amplification. The response of phytoplankton and zooplankton to global climate-change projections, carried out with the IPSL Earth System Model by the end of the century, is analysed at global and regional basis,...
Tipo: Text
Palavras-chave: Ecosystem model; Food web; Plankton; Primary production; Sea warming; Trophic amplification.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00188/29966/28481.pdf

Biomass components and structure of massai grass fertilized with nitrogen and grazed by sheep
Provedor de dados: 45
Autores: Lopes,M.N.; Cândido,M.J.D.; Pompeu,R.C.F.F.; Silva,R.G.; Carneiro,M.S.S.; Morais Neto,L.B.; Peixoto,M.J.A.; Carvalho,T.C.F.
ABSTRACT To evaluate the biomass components of massai grass subjected to nitrogen (N) fertilization levels (control - 0; 400; 800 and 1200 kg ha-1 year-1 of N) and under rotational stocking with sheep, this study was undertaken using a completely randomized design with measurements repeated in time. A quadratic response was observed reaching maximum values as the levels of nitrogen fertilization increased for green forage biomass, green leaf biomass, green stem biomass (5,172.9; 4,146.3; 1,033.9 kg ha-1 cycle-1, respectively), forage total density (179.1 kg ha-1 cm-1), canopy height (36.8 cm) and live material/dead material ratio (4.0) at levels 896; 934; 797; 879.2; 751.4 and 1,161 kg ha-1 year-1 of N, respectively. For all variables, oscillation was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Forage production; Green leaf biomass; Nitrogen fertilization; Panicum maximum.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000401411

Biomass flow in massai grass fertilized with nitrogen under intermittent stocking grazing with sheep
Provedor de dados: 96
Autores: Lopes,Marcos Neves; Cândido,Magno José Duarte; Pompeu,Roberto Cláudio Fernandes Franco; Silva,Rodrigo Gregório da; Carvalho,Thaíse Cristine Ferreira de; Sombra,Weberte Alan; Morais Neto,Luiz Barreto de; Peixoto,Márcio José Alves.
This study evaluated the biomass flow of massai grass in regrowth subjected to different nitrogen levels (control - no fertilization; 400; 800; and 1200 N kg ha-1year-1) and under rotational stocking with sheep, in a completely randomized design with repeated measures over time. The leaf elongation rate increased with increasing nitrogen levels (N) and the fourth grazing cycle presented a lower value compared with the others. The stem elongation rate responded linearly with increasing levels of N, but it was not influenced by grazing cycles. The senescence rate of leaves remaining before grazing and after grazing were not influenced by the nitrogen fertilization or amended with successive grazing cycles. The phyllochron was influenced only by the nitrogen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphogenesis; Nitrogen fertilization; Panicum maximum × Panicum infestum.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000100003

BIOMASS FOR ELECTRICITY AND PROCESS HEAT AT ETHANOL PLANTS
Provedor de dados: 31
Autores: Morey,   R. Vance; Tiffany,   Douglas G.; Hatfield,   Dennis L.
Published in:  Applied Engineering in Agriculture,  Vol. 22(5): 723-728
Tipo: Journal Article
Palavras-chave: Biomass; Process heat; Ethanol production; Electricity; Combined heat and power; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/93630

Biomass Partitioning Following Defoliation of Annual and Perennial Mediterranean Grasses
Provedor de dados: 7
Autores: Gutman, Mario; Agricultural Research Organization; mgutman@shani.net; Noy-Meir, Imanuel; Hebrew University of Jerusalem; noymeir@agri.huji.ac.il; Pluda, Daniel C; Volcani Center;; Seligman, No'am; Volcani Center; noamseli@netvision.net.il; Rothman, Steven; ;; Sternberg, Marcelo; Tel Aviv University; MarceloS@tauex.tau.ac.il.
A two-year experiment was conducted in northeastern Israel to study the effects of various defoliation regimes on biomass partitioning between vegetative and reproductive structures in a perennial and an annual Mediterranean grass. Greater insight into the mechanisms regulating biomass partitioning after defoliation enables ecologists and rangeland managers to interpret and predict population and community dynamics in Mediterranean grasslands more efficiently. Two typical Mediterranean grasses, Triticum dicoccoides, an annual species, and Hordeum bulbosum, a perennial species, were grown in containers in the open. They were subjected to a series of defoliation treatments that comprised three clipping frequencies and three clipping heights in a full...
Tipo: Peer-Reviewed Reports
Palavras-chave: Annual vs. perennial grasses; Biomass partitioning; Defoliation treatments; Grasslands; Grazing response; Hordeum bulbosum; Israel; Mediterranean; Reproductive effort; Triticum dicoccoides; Vegetative vs. reproductive structures.
Ano: 2001

Biomass yield in production systems of soybean sown in succession to annual crops and cover crops
Provedor de dados: 86
Autores: Pacheco,Leandro Pereira; Miguel,Andressa Selestina Dalla Côrt São; Silva,Rayane Gabriel da; Souza,Edicarlos Damacena de; Petter,Fabiano André; Kappes,Claudinei.
Abstract: The objective of this work was to evaluate the biomass (leaves and stems) production of annual and cover crops sown as second crop, and its effects on soybean yield in succession. The experiment was carried out in the 2014/2015 and 2015/2016 crop seasons. Soybean was sown in the crop season and in the second crop, in a randomized complete block design, in nine production systems (treatments) consisting of annual crops (corn, sunflower, and cowpea) and cover crops (Pennisetum glaucum, Crotalaria breviflora, C. spectabilis, Urochloa ruziziensis, Cajanus cajan, Stylosanthes sp., and U. brizantha), which were grown in monocropping or intercropping systems, besides fallow as a control. Monocropped P. glaucum and U. ruziziensis showed a faster...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Grain yield; No-tillage; Off-season.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000800582

Biomasses d'ulves et flux de nutriments en baie de Douarnenez
Provedor de dados: 5
Autores: Merceron, Michel; Coic, Daniel; Talec, Pascal.
In spring and summer time, green tides outbreaks yearly occur on sandy beaches of the central and southern parts of the bay of Douarnenez. During four years the nitrate loadings of incoming streams were measured during the growth season of the green algae. Every summer the stock of stranded algae as well as those in the very shallow water were quantified. Three streams from the eight investigated provide the most important part of nitrogen loadings. These ones tend to diminish in the course of spring and summer. They are very different from year to year. The observed biomass of algae is also very different according to years (from 120 to 3 400 t), and even from day to day according to the wind direction. However, the southern part of the bay is more...
Tipo: Text
Palavras-chave: Brittany Bay of Douarnenez Eutrophication Nitrate Ulva Green tide Bretagne Baie de Douarnenez; Eutrophisation Nitrate Ulve Marée verte.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/rapport-63.pdf

Biomechanical and histological evaluation of hydrogel implants in articular cartilage
Provedor de dados: 56
Autores: Malmonge,S.M.; Zavaglia,C.A.C.; Belangero,W.D.
We evaluated the mechanical behavior of the repaired surfaces of defective articular cartilage in the intercondylar region of the rat femur after a hydrogel graft implant. The results were compared to those for the adjacent normal articular cartilage and for control surfaces where the defects remained empty. Hydrogel synthesized by blending poly(2-hydroxyethyl methacrylate) and poly(methyl methacrylate-co-acrylic acid) was implanted in male Wistar rats. The animals were divided into five groups with postoperative follow-up periods of 3, 5, 8, 12 and 16 weeks. Indentation tests were performed on the neoformed surfaces in the knee joint (with or without a hydrogel implant) and on adjacent articular cartilage in order to assess the mechanical properties of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomaterial; Cartilage repair; Hydrogel; Biomechanical evaluation.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000300008

Biomechanics and structural adaptations of the rat femur after hindlimb suspension and treadmill running
Provedor de dados: 56
Autores: Shimano,M.M.; Volpon,J.B.
We microscopically and mechanically evaluated the femurs of rats subjected to hindlimb unloading (tail suspension) followed by treadmill training. Female Wistar rats were randomly divided into five groups containing 12-14 rats: control I (118 days old), control II (139 days old), suspended (tail suspension for 28 days), suspended-released (released for 21 days after 28 days of suspension), and suspended-trained (trained for 21 days after 28 days of suspension). We measured bone resistance by bending-compression mechanical tests of the entire proximal half of the femur and three-point bending tests of diaphyseal cortical bone. We determined bone microstructure by tetracycline labeling of trabecular and cortical bone. We found that tail suspension weakened...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hindlimb suspension; Exercise; Biomechanics; Femur; Rat.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000400004

Biometrical analyses of linolenic acid content of soybean seeds
Provedor de dados: 74
Autores: Gesteira,Abelmon da Silva; Schuster,Ivan; José,Inês Chamel; Piovesan,Newton Deniz; Viana,José Marcelo Soriano; Barros,Everaldo Gonçalves de; Moreira,Maurilio Alves.
The genetic reduction of linolenic acid levels increases the quality and stability of soybean oil. The objective of this study was to determine the inheritance and evaluate the nature and magnitude of gene effects on soybean seed linolenic acid level. Means and variances of F1, F2, and F3 generations were made from the cross between accession BARC-12 (low linolenic acid content) and the commercial Brazilian cultivar CAC-1 (normal linolenic acid content). The results demonstrated that linolenic acid content in soybean is under the genetic control of a small number of genes. The additive model explained the means for the three generations and for the parents. Non-allelic gene interactions had little effect on the determination of genotypic values for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soybean oil composition; Linolenic acid content; Biometrical analyses.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100011

Biomimetic Approaches for the Development of New Antifouling Solutions: Study of Incorporation of Macroalgae and Sponge Extracts for the Development of New Environmentally-Friendly Coatings
Provedor de dados: 5
Autores: Sánchez-lozano, Ilse; Hernández-guerrero, Claudia Judith; Muñoz-ochoa, Mauricio; Hellio, Claire.
Biofouling causes major economic losses in the maritime industry. In our site study, the Bay of La Paz (Gulf of California), biofouling on immersed structures is a major problem and is treated mostly with copper-based antifouling paints. Due to the known environmental effect of such treatments, the search for environmentally friendly alternatives in this zone of high biodiversity is a priority to ensure the conservation and protection of species. The aim of this work was to link chemical ecology to marine biotechnology: indeed, the natural defense of macroalgae and sponge was evaluated against biofoulers (biofilm and macrofoulers) from the same geographical zone, and some coatings formulation was done for field assays. Our approach combines in vitro and...
Tipo: Text
Palavras-chave: Adhesion; Algae; Antifouling; Biofilm; Extracts; Field assays; Sponges; Haliclona caerulea; Laurencia gardneri; Sargassum horridum; Ircinia sp.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00589/70074/68047.pdf

Biomonitoring of Pb and Cd in two impacted watersheds in Southeast Brazil, using the freshwater mussel Anodontites trapesialis (Lamarck, 1819) (Bivalvia : Mycetopodidae) as a biological monitor
Provedor de dados: 52
Autores: Tomazelli,Andréa C.; Martinelli,Luiz A.; Avelar,Wagner E. P.; Camargo,Plínio B. de; Fostier,Anne-Helene; Ferraz,Epaminondas S. B.; Krug,Francisco J.; Santos Júnior,Dário.
Studies were carried out to investigate the contamination of Piracicaba and Mogi-Guaçu River basins (São Paulo State, Southeastern, Brazil) for heavy metals (Cd and Pb), using the limnic bivalve Anodontites trapesialis as a biological monitor. The results showed that the concentrations of Pb were higher than the control group in both basins, showing the bioavailability of this non-essential element in the basins. The concentrations were higher in the Mogi-Guaçu than in the Piracicaba basin, and in the slightly contaminated sites in both basins. There was no correlation between the degree of human impact and Cd and Pb concentrations, it was not possible to infer about concentrations of these heavy metals in the bivalves based only in a broad evaluation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomonitoring; Heavy metals; Mussels; Piracicaba; Mogi-Guaçu; Brazil.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400022

Bionomics of Neolasioptera aculeatae (Diptera: Cecidomyiidae), a promising biological control candidate against Parkinsonia aculeata (Fabaceae)
Provedor de dados: 99
Autores: Mc Kay,Fernando; Sosa,Alejandro J.; Heard,Tim A.
Field surveys conducted in North-central Argentina on Parkinsonia aculeata L. between 2008 and 2011 revealed the presence of the stem-galling midge Neolasioptera aculeatae Gagné (Diptera: Cecidomyiidae). Bionomical and field host range studies were conducted to determine the insect's suitability for biological control of P . aculeata. Presence of N. aculeatae galls was restricted to the northern distribution of P. aculeata. Larvae and/or pupae were found by dissecting galls collected throughout the year on P. aculeata plants at different phenological stages. Emergence of N. aculeatae adults occurred 13 to 34 days from field collection and over an average period of 22 days. Field host range surveys indicated that of the 11 legume species sampled, N....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Field host range; Natural enemies; Weed biological control; Parkinsonia; Cina-cina.
Ano: 2014
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802014000100002

Bio-oceanografía en el entorno de la isla de La Plata, durante agosto/2001
Provedor de dados: 20
Autores: Torres, G.; Calderón, T.; Calderón, G.; Franco, V.; Correa, C.
El objetivo de la presente investigación, fue dar un comprensivo entendimiento de las condiciones bio-oceanográficas del fitoplancton-zooplancton-ictioplancton, y las interacciones con el medio circundante (físico, químico), procesos que son complicados cuando involucran aspectos hidrográficos costeros como áreas de afloramiento, áreas de pesca y áreas de soporte alimentario para los diferentes recursos marinos costeros planctónicos-bentónicos y aves-mamíferos marinos.
Tipo: Journal Contribution
Palavras-chave: Marine ecology; Phytoplankton; Zooplankton; Ichthyoplankton; Upwelling; Biological production; Marine resources; Cruises; Oceanic islands; Coastal zone; Marine resources; Phytoplankton; Zooplankton; Biological production; Marine ecology; Http://aims.fao.org/aos/agrovoc/c_28012; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_36649; Http://aims.fao.org/aos/agrovoc/c_4609.
Ano: 2004
URL: http://hdl.handle.net/1834/2318

Biopesticides for the control of storage insect pests
Provedor de dados: 21
The Problem     Cereals are an important component of the UK diet and of livestock feedstuffs but during storage are at risk of infestation by insects which damage quality and value. Chemical pesticides have been used to control infestations but are being phased out due to concerns about perceived safety, resistance and environmental impact. Biological control offers an alternative to the use of conventional chemical agents.          Project Aims     The primary aim of this project is to provide the basis for a whole new class of biological pesticides for use in the storage of a wide range of commodities including cereals and oilseeds.           Approach     Devise novel methodology which enables a model putative biopesticide to function under simulated...
Tipo: Project description
Palavras-chave: Crop health; Quality; Protection Post harvest management and techniques Cereals; Pulses and oilseeds.
Ano: 2023

BIOPHOTONICS: ACCLIMATION OF PRE-SPROUTED SUGARCANE SEEDLINGS IN PROTECTED ENVIRONMENT
Provedor de dados: 70
Autores: Almeida Neto,Luiz A.; Pandorfi,Héliton; Moraes,Alex S.; Guiselini,Cristiane; C. Júnior,José J. Florentino.
ABSTRACT Sugarcane is considered one of the main alternatives for biofuel production and an important product of Brazilian agriculture, so it is indispensable to adopt new techniques for its cultivation and management. Thus, the present study aimed to evaluate the effect of the quality of supplemental lighting, based on light-emitting diode (LED), on the acclimation of pre-sprouted sugarcane seedlings in a protected environment. The experimental design was completely randomized, consisting of three supplemental LED lighting systems, with light proportions of 90% red + 10% blue (R:B 90/10), 80% red + 20% blue (R:B 80/20) and 70% red + 30% blue (R:B 70/30), and a control, with natural solar radiation, with 5 replicates. Multivariate principal component...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Principal components; Light-emitting diode; Supplemental lighting; Solar radiation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000400410

Biophysical controls of evapotranspiration in cowpea cultivation under different water regimes
Provedor de dados: 91
Autores: Souza,Daniely F. S. de; Pinto,João V. de N.; Costa,Deborah L. P.; Vieira,Igor C. de O.; Silva,Thieres G. F. da; Souza,Paulo J. de O. P. de.
ABSTRACT The objective of this study was to analyze the variations of the decoupling factor and the aerodynamic and stomatal conductances for cowpea subjected to different levels of water availability during the reproductive phenological stages of the crop. The study was conducted in the municipality of Castanhal located in the northeast of the state of Pará, Brazil, in an area planted with cowpea, in 2013, 2014 and 2015 with four irrigation treatments: T100 - replacement of 100% of the crop evapotranspiration (ETc); T50 - replacement of 50% ETc; T25 - replacement of 25% ETc; and T0 - without any replacement (without irrigation). The interaction between the crop and the atmosphere in water vapor exchange was estimated through the decoupling factor (Ω),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vigna unguiculata (L.) Walp; Decoupling factor; Aerodynamic conductance; Stomatal conductance.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019001000725

Biophysical Interactions Control the Size and Abundance of Large Phytoplankton Chains at the Ushant Tidal Front
Provedor de dados: 5
Autores: Landeira, Jose Maria; Ferron, Bruno; Lunven, Michel; Morin, Pascal; Marie, Louis; Sourisseau, Marc.
Phytoplankton blooms are usually dominated by chain-forming diatom species that can alter food pathways from primary producers to predators by reducing the interactions between intermediate trophic levels. The food-web modifications are determined by the length of the chains; however, the estimation is biased because traditional sampling strategies damage the chains and, therefore, change the phytoplankton size structure. Sedimentological studies around oceanic fronts have shown high concentrations of giant diatom mats (&gt;1 cm in length), suggesting that the size of diatom chains is underestimated in the pelagic realm. Here, we investigate the variability in size and abundance of phytoplankton chains at the Ushant tidal front (NW France) using the Video...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00186/29730/28148.pdf

Biophysical visual virtual reality in retinotopic visual areas
Provedor de dados: 17
Autores: Istv&amp;#xe1;n B&amp;#xf3;kkon; Jack Tuszynski; Vahid Salari.
Previously, we have pointed out that biophoton production can be a controlled process that originates from regulated redox/radical reactions. Our biophoton experiments support the notion that various visual related phenomena such as discrete retinal noise, retinal phosphenes as well as negative afterimages are due to biophotons. We have also suggested a new model, stating that the brain is able to create biophysical pictures in retinotopic visual areas via redox regulated biophotons of synchronized neurons. According to our interpretation, visualization (imagery) is a special kind of representation i.e., visual imagery requires peculiar inherent biophysical processes. Our idea of biophysical visual virtual reality in retinotopic areas may be a possible...
Tipo: Poster
Palavras-chave: Neuroscience.
Ano: 2011
URL: http://precedings.nature.com/documents/6051/version/1

Biophysicochemical characterization of Pyocin SA189 produced by Pseudomonas aeruginosa SA189
Provedor de dados: 58
Autores: Naz,Sehar Afshan; Jabeen,Nusrat; Sohail,Muhammad; Rasool,Sheikh Ajaz.
Abstract Pseudomonas aeruginosa, in spite of being a ubiquitous organism (as it is found in soil, water, and humans), is also an opportunistic pathogen. In order to maintain its diversity in the community, it produces various toxic proteins, known as, bacteriocins. In the present study, pyocin SA189, which is a bacteriocin produced by P. aeruginosa SA189 (isolated from a clinical sample) was characterized. P. aeruginosa SA189, as identified by the conventional and 16S rRNA gene amplification, produced pyocin SA189 of molecular weight of 66 k Da. The pyocin showed antimicrobial activity against several clinically relevant Gram-positive and Gram-negative bacteria and was substantially stable for wide ranges of temperature and pH. Furthermore, the pyocin also...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacteriocin; Pyocin; P. aeruginosa.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401147

Bio-PhytoPRE - ein Warn- und Prognosesystem zur Bekämpfung der Kraut und Knollenfäule im ökologischen Kartoffelanbau in der Schweiz
Provedor de dados: 21
Autores: Musa-Steenblock, Tomke; Forrer, Hans-Rudolf.
In organic potato production, copper fungicides are the only mean for an effective direct control of late blight. To avoid negative impacts of copper accumulation in the environment, intensive research is done to develop efficient copper free agents (CFA) and new strategies for disease prevention. However, the search for such CFA and strategies proves to be more difficult than expected. Therefore an abdication of copper products is not yet possible. To approach a copper free organic potato production, the Agroscope FAL Reckenholz is developing the Bio-PhytoPRE decision support system to assist Swiss organic potato producers to control late blight with reduced amounts of copper or CFA.
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop health; Quality; Protection Switzerland.
Ano: 2005
URL: http://orgprints.org/3211/1/3211.pdf

Biopreservation of lightly preserved seafood products
Provedor de dados: 5
Autores: Leroi, Francoise.
Consumer trends indicate an increasing demand for natural, minimally processed convenience seafood with few additives. Biopreservation techniques developed by researchers in France to control Listeria monocytogenes and to extend shelf life of mildly preserved seafood have been commercialised.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00057/16784/14238.pdf

Bioproductos como sustitutos parciales de la nutrición mineral del cultivo de pimiento (Capsicum annuum L.)
Provedor de dados: 109
Autores: Terry Alfonso,Elein; Ruiz Padrón,Josefa; Rivera Espinosa,Ramón; Falcón Rodríguez,Alejandro; Carrillo Sosa,Yudines.
Resumen Los bioproductos ejercen efectos beneficiosos en las plantas tales como la estimulación del crecimiento y el rendimiento agrícola y la inducción de mecanismos defensivos; además, de no ser dañinos para las plantas ni para el medio ambiente. El presente trabajo se desarrolla entre los meses de enero a abril de 2019 bajo condiciones de cultivo protegido, con el objetivo de evaluar la efectividad agrobiológica de diferentes bioproductos en el cultivo del pimiento (Capsicum annuum L.) como sustitutos parciales de la nutrición mineral, así como en el estímulo del crecimiento y del rendimiento del cultivo. Se desarrolla en un suelo ferralítico rojo, bajo un diseño completamente aleatorizado con cinco tratamientos (inoculaciones simples de hongos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioestimuladores; Cultivo protegido; Crecimiento; Hongos micorrízicos arbusculares; Hortaliza; Rendimiento.
Ano: 2021
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000300266

Bioprospecting and selection of growth-promoting bacteria for Cymbidium sp. orchids
Provedor de dados: 63
Autores: Gontijo,Júlia Brandão; Andrade,Gracielle Vidal Silva; Baldotto,Marihus Altoé; Baldotto,Lílian Estrela Borges.
ABSTRACT: Inoculants containing bacteria which promote growth in plants can increase productivity and both the economic and the environmental cost in plant crop systems. Similarly, in the flower and ornamental plant sector, the use of diazotrophic bacteria is a promising approach for improving orchid propagation from tissue culture to the ex vitro environment. We isolated diazotrophic bacteria from the roots and leaves of Cymbidium sp. The isolates were used to inoculate Cymbidium sp. plantlets during acclimatization in the nursery. After 150 days, plants were collected and their morphological and nutritional characteristics assessed. Eight bacterial strains were isolated containing traits that promote plant growth: Bacillus thuringiensis, Burkholderia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Orchidaceae; Diazotrophic bacteria; Phosphate-solubilizing bacteria; Endophytic bacteria; Acclimatization.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000500368

Bioprospecting endophytic bacteria for biological control of coffee leaf rust
Provedor de dados: 63
Autores: Shiomi,Humberto Franco; Silva,Harllen Sandro Alves; Melo,Itamar Soares de; Nunes,Flávia Vieira; Bettiol,Wagner.
Suppression of plant diseases due to the action of endophytic microorganisms has been demonstrated in several pathosystems. Experiments under controlled conditions involving endophytic bacteria isolated from leaves and branches of Coffea arabica L and Coffea robusta L were conducted with the objective of evaluating the inhibition of germination of Hemileia vastatrix Berk. &amp;amp; Br., race II, urediniospores and the control of coffee leaf rust development in tests with leaf discs, detached leaves, and on potted seedling of cv. Mundo Novo. The endophytic bacterial isolates tested proved to be effective in inhibiting urediniospore germination and/or rust development, with values above 50%, although the results obtained in urediniospore germination tests...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemileia vastatrix; Coffea spp.; Bacillus; Biocontrol.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100006

Bioprospecting thermophiles for cellulase production: a review
Provedor de dados: 58
Autores: Acharya,Somen; Chaudhary,Anita.
Most of the potential bioprospecting is currently related to the study of the extremophiles and their potential use in industrial processes. Recently microbial cellulases find applications in various industries and constitute a major group of industrial enzymes. Considerable amount of work has been done on microbial cellulases, especially with resurgence of interest in biomass ethanol production employing cellulases and use of cellulases in textile and paper industry. Most efficient method of lignocellulosic biomass hydrolysis is through enzymatic saccharification using cellulases. Significant information has also been gained about the physiology of thermophilic cellulases producers and process development for enzyme production and biomass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lignocelluloses; Bioethanol; Cellulase; Thermophiles.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300001

Biorefined grass-clover as protein source for organic broilers: Effect on feed intake, growth, and meat fatty acid profile
Provedor de dados: 21
Autores: Stødkilde, L; Ambye-Jensen, M; Krogh Jensen, S.
The composition of protein extracted from organic grass-clover during biorefining was investigated as were the effects on growth performance and tissue fatty acid composition of substituting traditional feed ingredients with grass-clover protein for organic broilers. The extracted grass-clover protein had a crude protein content of 362 g/kg and a balanced amino acid composition with a methionine content superior to the content in soybean meal.  The dietary fiber content was 324 g/kg dry matter with a major fraction being acid insoluble residues (klason lignin). The majority of the fatty acids was constituted by polyunsaturated fatty acids (PUFA), more specific alpha-linolenic acid. A total of 640 one-day old Color Yield chickens were fed diets containing...
Tipo: Journal paper
Palavras-chave: Feeding and growth.
Ano: 2019
URL: http://orgprints.org/35222/1/Manuscript.docx

Bioregulator application, agronomic efficiency, and quality of soybean seeds
Provedor de dados: 63
Autores: Ávila,Marizangela Rizzatti; Braccini,Alessandro de Lucca e; Scapim,Carlos Alberto; Albrecht,Leandro Paiola; Tonin,Telmo Antônio; Stülp,Marcibela.
The application of vegetal bioregulators has shown promising results, mainly in cultures that have already reached a high level of technology. Based on this context an experiment was carried out with the objective of evaluating agronomic traits of plants, such as yield and quality of seeds, produced by applying bioregulators to a soybean crop. For this purpose, the following treatments were carried out: before sowing - seed treatment (25, 50 and 75 mL for 100 kg-1 seeds); during sowing time - spraying on the sowing lines (pulverization onto the sowing lines) (50, 100 and 150 mL ha-1); between stages V5 and V6 (25, 50 and 75 mL ha-1); and the control - no treatment. Emergence speed, final seedling emergence, number of pods and seeds per plant, average...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth regulator; Yield; Vigor; Germination.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000600006

Biorremediación de zonas contaminadas por hidrocarburos empleando hongos comestibles : efecto del antraceno sobre el crecimiento in vitro de Pleurotus ostreatus.
Provedor de dados: 32
Autores: Camacho Martínez, Francisco Javier.
En la producción de hongos comestibles se utilizan diversos residuos agroindustriales como la paja de cebada, trigo y avena. Como resultado del cultivo, se producen grandes cantidades de sustrato residual, el cual puede potencialmente ser usado para procesos de biorremediación in situ. En el presente estudio, se cultivó el hongo comestible Pleurotus ostreatus (CP-50) en presencia del hidrocarburo aromático policíclico, antraceno. La cepa se cultivó en tres condiciones: 1) Agar con Extracto de Malta (EMA), CP-50 y antraceno (tratamiento); 2) EMA y CP-50 (testigo) y 3) EMA y antraceno (blanco). Se utilizaron 4 concentraciones de antraceno por caja Petri (0.05, 0.1, 0.2 y 0.4 g). A cada muestra se le midió el área de la colonia (cm2), se determinó la cantidad...
Palavras-chave: Antraceno; Lacasas; PAGE; Pleurotus ostreatus; Proteínas; Anthracene; Laccases; Proteins; Estrategias para el Desarrollo Agrícola Regional; EDAR; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/2198

Biosafety and risk assessment in the use of genetically modified mosquitoes for disease control
Provedor de dados: 26
Autores: Touré, Y.T.; Oduola, A.M.J.; Sommerfeld, J.; Morel, C.M.
The development and implementation of the release of genetically modified mosquitoes (GMM) for interrupting pathogen transmission represent a major challenge, despite the fact that several achievements have been made about Anopheles and Aedes mosquitoes. There are major biotechnology challenges remaining about the improvement of the stability of a gene construct and its expression for a robust and complete interruption of pathogen transmission and the devise of safe means of spreading foreign antipathogen genes through mosquito populations in the wild. The implementation obstacles to overcome include proper risk assessment and management, conduct of studies to ensure safety for humans and the environment, devise of appropriate control strategies based on...
Tipo: Conference proceedings
Ano: 2004
URL: http://library.wur.nl/ojs/index.php/frontis/article/view/851

Biosafety in veterinarian establishments in the city of Ribeirão Preto, Sp, Brazil
Provedor de dados: 195
Autores: Valente, Dario; Oliveira, Carlos Alberto d'Ávilla de; Rodrigues, Vânia Cantarela; Trebbi, Hélio.
Objective: To identify specific conditions in veterinary establishments that may jeopardize biosafety, such as: a) proper disposal of medical waste; b) compliance with radiological safety rules; c) use of personal protection equipment; d) pre-exposure vaccination of directly involved personnel against rabies and tetanus; e) utilization of a refrigerator exclusive for storage of biological products; j) use of Maximum-Minimum thermometer; g) employment of adequate disposal container. Material and Method: Retrospective study based on dala collected from sanitary inspection reports concerning requests for Operation License, filed within the Sanitary Surveillance section of the Municipal Health Secretariat of Ribeirão Preto, Sp, Brazil. The files of36...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Health surveillance; Records; Utilization; Hospitals; Animals; Physician's offices; Medical waste disposal; Radiation protection; Occupational exposure; Biological products; Supply and distribution Vigilancia sanitaria; Registros; Utilización; Hospitales veterinarios; Consultorios médicos; Disposición de residuos médicos; Protección radiológica; Exposición ocupacional; Productos biológicos; Provisión y distribución vigilância sanitária; Registros; Utilização; Hospitais veterinários; Consultórios médicos; Disposição de resíduos de saúde; Proteção radiológica; Exposição ocupacional; Produtos biológicos; Provisão e distribuição.
Ano: 2004
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/3237

Biosolids conditioning and the availability of Cu and Zn for rice
Provedor de dados: 63
Autores: Pires,Adriana Marlene Moreno; Mattiazzo,Maria Emília.
Sewage treatment process is a factor to be considered for biosolid use in agriculture. The greatest sewage treatment facility of São Paulo State (Barueri/SP) altered in the year 2000 of its sludge treatment. The addition of ferric chloride and calcium oxide was substituted by the addition of polymers. This change can modify heavy metal phytoavailability. A green house experiment, using 2 soils treated with biosolids (three with and one without polymers with and without polymers) was performed to evaluate Cu and Zn phytoavailability using rice (Oryza sativa L.) as test plant. Three kilograms of two soils (Haphorthox abd Hapludox) were placed in pots and the equivalent to 50 Mg ha-1 (dry basis) of biosolid was added and incorporated. The statistical design...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sewage sludge; Heavy metal; Phytoavailability; Extractant.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100024

Biostimulants on mineral nutrition and fiber quality of cotton crop
Provedor de dados: 91
Autores: Silva,Ricardo de A.; Santos,Jerffson L.; Oliveira,Luan S.; Soares,Mauricio R. S.; Santos,Saad M. S. dos.
ABSTRACT Biostimulants are used in cotton (Gossypium hirsutum L.) to balance vegetative and reproductive growth as well as to increase cotton seed yield and fiber quality. Therefore, in order to study the efficiency of seed treatment with biostimulants, nutrition, production and technological quality for the cotton fiber, a field experiment was installed. The study was conducted at the Alvorada farm research field, in Luis Eduardo Magalhães municipality - BA. The experiment was arranged in a completely randomized block design with four replicates and five treatments (control group, untreated group, Booster®, Stimulate®, Improver® and Biozyme®). Leaf contents of nutrients, yield and technological quality of the fiber were evaluated. The results showed that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth regulators; Yield; Foliar nutrition; Gossypium hirsutum L.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001201062

Biosurfactants synthesized by endophytic Bacillus strains as control of Moniliophthora perniciosa and Moniliophthora roreri
Provedor de dados: 63
Autores: Serrano,Lizette; Moreno,Andrea Sosa; Castillo,Daynet Sosa Del; Bonilla,Julio; Romero,Christian A; Galarza,Luis Lenin; Coronel–León,Jonathan Ricardo.
ABSTRACT: Ecuador is responsible for up to 70 % of the world’s production of fine flavor cocoa. Although fungal diseases have reduced cocoa production, eco–friendly alternatives have been implemented to control the spread of phytopathogens. This study aimed to explore the potential of endophytic strains isolated from fine flavor Nacional cocoa trees to synthetize compounds with antimicrobial and surface active properties. It was determined that under in vitro conditions, seven strains (DS03, DS07, DS18, DS23, DS31, DS34 and DS50) exhibited antifungal activity that inhibited the mycelial growth of Moniliophthora roreri and Moniliophthora perniciosa. The strains were identified based on their morphological (pattern forming Bacilli) and genetic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antimicrobial biosurfactant; Biocontrol; Cocoa; Endophytes microorganisms.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000700201

Biosynthesis of flavonoids in bilberry and blueberry - possibilities of the gene level information for the future
Provedor de dados: 21
Autores: Jaakola, Laura.
We have studied the biosynthesis of flavonoids in various tissues of naturally growing European blueberry (bilberry) and the blueberry cultivar 'Northblue'. Focus has also been on the biosynthesis of flavonoids in developing bilberry fruits as well as on the control genes regulating fruit development.
Tipo: Conference paper, poster, etc.
Palavras-chave: Food security; Food quality and human health.
Ano: 2007
URL: http://orgprints.org/15994/1/berry1.pdf

Biotechnological approaches for plant viruses resistance: from general to the modern RNA silencing pathway
Provedor de dados: 52
Autores: Rodrigues,Silas Pessini; Lindsey,George G.; Fernandes,Patricia Machado Bueno.
Virus diseases are significant threats to modern agriculture and their control remains a challenge to the management of cultivation. The main virus resistance strategies are based on either natural resistance or engineered virus-resistant plants. Recent progress in understanding the molecular mechanisms underlying the roles of resistance genes has promoted the development of new anti-virus strategies. Engineered plants, in particular plants expressing RNA-silencing nucleotides, are becoming increasingly important and are likely to provide more effective strategies in future. A general discussion on the biotechnology of plant responses to virus infection is followed by recent advances in engineered plant resistance.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant defense; Engineered resistance; Phytopathogens.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400002

Biotechnological potential of alternative carbon sources for production of pectinases by Rhizopus microsporus var. rhizopodiformis
Provedor de dados: 52
Autores: Damásio,André Ricardo de Lima; Maller,Alexandre; Silva,Tony Márcio da; Jorge,João Atílio; Terenzi,Hector Francisco; Polizeli,Maria de Lourdes Teixeira de Moraes.
Fungi collected from Brazilian soil and decomposing plants were screened for pectinase production. R. microsporus var. rhizopodiformis was the best producer and was selected to evaluate the pectic enzyme production under several nutritional and environmental conditions. The pectinase production was studied at 40ºC, under 28 carbon sources-supplemented medium. The inducer effect of several agro-industrial residues such as sugar cane bagasse, wheat flour and corncob on polygalacturonase (PG) activity was 4-, 3- and 2-fold higher than the control (pectin). In glucose-medium, a constitutive pectin lyase (PL) activity was detected. The results demonstrated that R. microsporus produced high levels of PG (57.7 U/mg) and PL (88.6 U/mg) in lemon peel-medium. PG had...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agro industrial residues; Lemon peel; Pectin lyase; Polygalacturonase; R. microsporus var. rhizopodiformis.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000100019

BIOTECHNOLOGY AND PEST RESISTANCE: AN ECONOMIC ASSESSMENT OF REFUGES
Provedor de dados: 31
Autores: Hurley,   Terrance M.; Babcock,   Bruce A.; Hellmich,   Richard L.
Transgenic crops offer farmers a new and effective pest control option.  However, the wide spread adoption of these crops could lead to a resistant pest population.  This paper demonstrates how a pest refuge can be used to maximise the value of farm income in a dynamic model with genetic foundations.
Tipo: Conference Paper or Presentation
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 1998
URL: http://purl.umn.edu/21000

Biotechnology and Pest Resistance: An Economic Assessment of Refuges
Provedor de dados: 31
Autores: Hurley,   Terrance M.; Babcock,   Bruce A.; Hellmich,   Richard L.
Biologists now engineer transgenic crop varieties that express proteins that are toxic to a variety of common agricultural pests.  These transgenic crops offer farmers a new tool for effectively managing pests that reduce yields and increase production costs.  However, the concern over pest resistance to these toxins has prompted the EPA to require resistance management plans.  Seed companies have focused on a high-does refuge plan where farmers are required to plant a constant proportion of cropland in refuge in order to maintain a susceptible pest population.  Currently, entomologists recommend 20 to 40% refuge.  This paper develops an economic model of pest management with pest resistance to estimate the constant proportion of refuge that maximizes farm...
Tipo: Working or Discussion Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1997
URL: http://purl.umn.edu/18632

Biotechnology and the Development of Food Markets: Retrospect and Prospects
Provedor de dados: 31
Autores: Moschini,   GianCarlo.
Biotechnology has had an important impact on the agricultural and food industries over the last twelve years by way of fast and extensive adoption of a few genetically modified (GM) crops. This has produced large efficiency gains, including higher yields and reduced costs of weed and pest control, as well as some environmental benefits. The expected development of crops with additional agronomic traits, and with output traits to improve the nutrition and health attributes of food products, holds the potential for even more pervasive impacts. Full realisation of such promises may require overcoming the constraining effects of restrictive GM product regulations.
Tipo: Working or Discussion Paper
Palavras-chave: Biotechnology; Genetically modified products; Innovation; Regulation; Research and development.
Ano: 2008
URL: http://purl.umn.edu/42811

Biotechnology applied to Annona species: a review
Provedor de dados: 94
Autores: Encina,Carlos Lopez; Martin,Elisabeth Carmona; Lopez,Antonio Arana; Padilla,Isabel Maria Gonzalez.
Annonaceae is an ancient family of plants including approximately 50 genera growing worldwide in a quite restricted area with specific agroclimatic requirements. Only few species of this family has been cultivated and exploited commercially and most of them belonging to the genus Annona such as A. muricata, A. squamosa, the hybrid A. cherimola x A. squamosa and specially Annona cherimola: the cherimoya, commercially cultivated in Spain, Chile, California, Florida, México, Australia, Ecuador, Peru, Brazil, New Zealand and several countries in South and Central America. The cherimoya shows a high degree of heterozygosis, and to obtain homogeneous and productive orchards it is necessary to avoid the propagation by seeds of this species. Additionally, the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annona; In vitro; Micropropagation; Protoplasts; Organogenesis; Polyploidy.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000500002

Biotecnologia de produção massal de Trichograma spp. através do hospedeiro alternativo Sitotroga cerealella.
Provedor de dados: 14
Autores: ALMEIDA, R. P. de.
Producao Massal de Trichogramma Producao do hospedeiro alternativo; Estrutura fisica e equipamentos utilizados.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Massal; Parasitoide; Trichogramma spp; Brasil; Paraiba; Campina Grande; Biotecnology; Production; Host.; Biotecnologia; Controle Biológico; Produção; Sitotroga Cerealella.; Biological control.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269375

Biotic and abiotic factors associated with soil suppressiveness to Rhizoctonia solani
Provedor de dados: 63
Autores: Ghini,Raquel; Morandi,Marcelo Augusto Boechat.
Crop management may modify soil characteristics, and as a consequence, alter incidence of diseases caused by soilborne pathogens. This study evaluated the suppressiveness to R. solani in 59 soil samples from a microbasin. Soil sampling areas included undisturbed forest, pasture and fallow ground areas, annual crops, perennial crops, and ploughed soil. The soil samples were characterized according to abiotic variables (pH; electrical conductivity; organic matter content; N total; P; K; Ca; Mg; Al; H; S; Na; Fe; Mn; Cu; Zn; B; cation exchange capacity; sum of bases and base saturation) and biotic variables (total microbial activity evaluated by the CO2 evolution and fluorescein diacetate hydrolysis; culturable bacterial, fungal, actinomycetes, protozoa,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soilborne pathogen; Soil microorganisms; Biological control; Path analysis; Suppressive soil.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000200007

Biotisation des plants de fraisiers en agriculture biologique
Provedor de dados: 21
Cette étude vise à évaluer l’effet bénéfique de la biotisation pour favoriser la croissance et améliorer la production de cultures de fraisiers en sol. Trois micro-organismes (une souche de Fusarium oxysporum non pathogène Fo47, une souche de Pseudomonas fluorescens A6, une espèce de champignon endomycorhizogène Glomus intraradices) sont incorporés en combinaisons binaires dans le substrat d’acclimatation des plantules. Après quatre semaines, les plantes sont transplantées dans quatre sols différents. Les analyses microbiologiques montrent la bonne installation de Fo47 et P.f. A6 dans les quatre sols naturels. Aucun effet négatif de la co-inoculation n’est observé. Une augmentation non significative de la production est observée pour les fraisiers...
Tipo: Project description
Palavras-chave: Soil biology.
Ano: 2023

Biotransformation of anthracene and fluoranthene by Absidia fusca Linnemann
Provedor de dados: 69
Autores: Villemain,Danièle; Guiraud,Pascale; Bordjiba,Ouahiba; Steiman,Régine.
A strain of Absidia fusca was isolated from a pesticide-contaminated soil (Annaba, Algeria). The biotransformation capability of this strain towards two polycyclic aromatic hydrocarbons (PAHs): anthracene and fluoranthene was compared to that exhibited by another strain of A. fusca isolated from a non-contaminated milieu and considered as a control. The results obtained were statistically analyzed and showed that the strain isolated from the contaminated soil was more efficient than the control to remove anthracene from the medium, during all the kinetics (90% removed versus 45% after 24 hrs). Concerning fluoranthene, the amount removed by both strains was very high during the first 24 hrs however the control strain was slightly more efficient (94% versus...
Tipo: Journal article
Palavras-chave: Absidia fusca; Anthracene; Biodegradation; Fluoranthene; Kinetics.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000200004

Biowisselkas: Bredere vruchtwisseling voor een gezondere bodem
Provedor de dados: 21
Autores: Cuijpers, Willemijn; Janmaat, Leen.
In 2009 en 2010 is een praktijkproef uitgevoerd met een alternatief teeltsysteem in de biologische glastuinbouw. Het doel van het alternatieve systeem is het verbeteren van de bodemgezondheid, door verbreding van de vruchtwisseling. Dit moet gebeuren op een manier die economisch rendabe is. In het zogenaamde Köver systeem, worden de plantbedden ondergronds door middel van folie in compartimenten verdeeld. Op de ene helft van het plantbed worden vruchtgroenten geteeld, en op de andere helft van het plantbed kunnen antagonistische gewassen worden geteeld, of kan de gron braak worden gelegd. Paprika blijkt in het systeem veel last te hebben van de antagonistische gewassen, die veel licht wegvangen. Door de rijke grondsoort (locatie Tinte) en hoge temperatuur...
Tipo: Report
Palavras-chave: Crop combinations and interactions; Soil biology; Greenhouses and coverings.
Ano: 2012
URL: http://orgprints.org/20824/1/2609.pdf

Biphasic modulation of insulin receptor substrate-1 during goitrogenesis
Provedor de dados: 56
Autores: Grozovsky,R.; Morales,M.M.; Carvalho,D.P.
Insulin receptor substrate-1 (IRS-1) is the main intracellular substrate for both insulin and insulin-like growth factor I (IGF-I) receptors and is critical for cell mitogenesis. Thyrotropin is able to induce thyroid cell proliferation through the cyclic AMP intracellular cascade; however, the presence of either insulin or IGF-I is required for the mitogenic effect of thyroid-stimulating hormone (TSH) to occur. The aim of the present study was to determine whether thyroid IRS-1 content is modulated by TSH in vivo. Strikingly, hypothyroid goitrous rats, which have chronically high serum TSH levels (control, C = 2.31 ± 0.28; methimazole (MMI) 21d = 51.02 ± 6.02 ng/mL, N = 12 rats), when treated with 0.03% MMI in drinking water for 21 days, showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Thyroid; Goiter; Insulin receptor substrate; Insulin; Thyrotropin.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000500011

Birch tar oil is an effective mollusc repellent: field and laboratory experiments using Arianta arbustorum (Gastropoda: Helicidae) and Arion lusitanicus (Gastropoda: Arionidae)
Provedor de dados: 21
Autores: Lindqvist, Isa; Lindqvist, Bengt; Tiilikkala, Kari; Hagner, Marleena; Penttinen, Olli-Pekka; Pasanen, Tiina; Setälä, Heikki.
Populations of two molluscs, the land snail Arianta arbustorum and the Iberian slug Arion lusitanicus, have increased substantially in many places in the northern Fennoscandia in recent years. This has resulted in considerable aesthetic and economic damage to plants in home gardens and commercial nurseries. Birch tar oil (BTO), is a new biological plant protection product, and was tested against these molluscs. In this study we examined whether 2 types of BTO, used either alone, mixed together, or mixed with Vaseline®, could be applied as 1) a biological plant protection product for the control of land snails by direct topical spray application, 2) as a repellent against snails when painted on a Perspex® fence, and 3) as a repellent against slugs when...
Tipo: Journal paper
Palavras-chave: Crop health; Quality; Protection.
Ano: 2010
URL: http://orgprints.org/16887/1/lindqvist.pdf

Birth Control Does Not Significantly Alter Women&amp;#x2019;s Preferences for Variants of Men&amp;#x2019;s Voices
Provedor de dados: 17
Autores: Jason W. J. W. W. Whitaker; Ryan R. S. Setten; Ulv U. A. Ankerstjerne.
Research shows that women&amp;#x2018;s preferences for masculine voices (low pitch) vary as a function of the menstrual cycle, becoming positively augmented around ovulation. The proximate cause catalyzing this effect is attributed to fluctuating estrogen levels. Thus, the introduction of hormonally based birth control has been to shown to have a dampening effect in experiments researching women&amp;#x2018;s preference of dimorphic secondary sexual characteristics. However, this dampening effect has not yet been explored in respect to women&amp;#x2018;s preferences for masculine voice types. This experiment sought, first, to investigate the effect of birth control on subjects off and on birth control; and, second, to replicate past findings:...
Tipo: Poster
Palavras-chave: Evolutionary Biology.
Ano: 2011
URL: http://precedings.nature.com/documents/5895/version/1

Birth defects in Brazil: Outcomes of a population-based study
Provedor de dados: 74
Autores: Oliveira-Brancati,Camila Ive Ferreira; Ferrarese,Valéria Cristina Carvalho; Costa,Antonio Richieri; Fett-Conte,Agnes Cristina.
Abstract Birth defects (BDs) are functional and structural alterations in embryonic or fetal development. With an incidence of approximately 3-5%, BDs are a leading cause of infant mortality and lifelong disability. A population-based prospective case-control study was conducted for one year with 5204 infants, between March 1st, 2011 and February 29th, 2012 in the city of São José do Rio Preto, State of São Paulo, Brazil. The incidence of BDs was 3.2% [95% confidence interval (95%CI): 2.8-3.8%]. The most common congenital anomalies were heart diseases in isolation (11.2%; 95%CI: 7.3-16.9%) followed by Down syndrome (9.5%; 95%CI: 5.9-14.8%), neural tube defects (8.9%; 95%CI: 5.4-14.1), urinary tract anomalies (7.7%; 95%CI: 4.4-12.7%), and polydactyly (7.0%;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malformation; Congenital anomaly; Fetal development; Genetic counseling; Public health.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000100102

Bispectral index assessment in calves subjected to the continuous infusion of propofol combined with fentanyl administration
Provedor de dados: 65
Autores: Deschk,Mauricio; Trein,Thomas Alexander; Wagatsuma,Juliana Tessália; Silva,Guilherme Lopes da; Araújo,Marcelo Augusto de; Games,Bruna de Moraes Martins; Alcindo,Jefferson Filgueira; Rodrigues,Celso Antônio; Santos,Paulo Sergio Patto dos.
ABSTRACT: The aim of this study was to evaluate the bispectral index (BIS) effects in calves through continuous infusion of propofol with or without fentanyl. Eight Holstein male calves (ages from six to twelve months old) with an average weight of 123±18kg were used. All animals participated in both groups, always keeping a minimum interval of one week between the anesthetic procedures; the calves were randomly distributed between groups. Anesthesia was induced with an intravenous (IV) dose of propofol of 5mg kg-1 in control group (GP) or with propofol (4mg kg-1) associated with IV fentanyl 0.001mg kg-1(GF). All the calves were positioned in right lateral recumbency and were allowed to spontaneously breathe room air. Subsequently, the anesthesia was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calves; Ruminants; Balanced anesthesia; Anesthetic monitoring.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100602

BLACK POLYPROPYLENE MULCH TEXTILE IN ORGANIC AGRICULTURE
Provedor de dados: 21
Autores: Dvorak, Petr; Hajšlová, Jana; Hamouz, Karel; Schulzová, Věra; Kuchtova, Perla; Tomasek, Jaroslav.
Black polyethylene mulch is used for weed control in a range of crops under the organic system. The use of black polypropylene mulch is usually restricted to perennial crops. The trial was conducted at Experimental station of Department of Crop Production of the Czech University of Life Science Prague-Uhříněves in Czech Republic. For the experiments were used black polypropylene woven mulch (comparison wit bare soil), two varieties of early potatoes Finka and Katka. Black polypropylene textile was used in potatoes by organic agriculture and it had positive effect on soil temperature (in the depth of 100 mm). Slightly higher soil temperatures under black polypropylene mulch in the vegetation period after planting had favourable influence on earlier stands...
Tipo: Journal paper
Palavras-chave: "Organics" in general; Farming Systems; Knowledge management.
Ano: 2010
URL: http://orgprints.org/20582/1/%C4%8Dl%C3%A1nek_Rumunsko%2C_52_1_116%2D120.pdf

Black-grass control in winter cereals with hoeing
Provedor de dados: 21
Autores: Dierauer, Hansueli; Siegrist, Franziska; Weidmann, Gilles.
Thanks to the use of the bladed hoe, strong-rooting grass weeds can be successfully uprooted even in heavier soils.  Other problem weeds, such as cow vetch, hemp-nettle, windgrass, or burdock, can also be controlled with the bladed hoe.   • Sow the winter cereal in October, in rows with spacing of at least 20 cm.   • When the cereal is at the 3-leaf-stage, control sprouting weeds with 1-2 harrowing procedures.  • After using the harrow and as the winter cereals begin tillering, root out the yet intact, well-rooted grass weed between the rows with help of a duckfoot-bladed hoeing device. The duckfoot bladed hoe may also be used in combination with the harrow.
Tipo: Practice tool
Palavras-chave: Weed management.
Ano: 2017
URL: http://orgprints.org/31019/12/PA_004_Ackerfuchsschwanz_Hacken_final_QR.pdf

Blackgrass control in winter cereals with hoeing
Provedor de dados: 21
Autores: Dierauer, Hansueli; Siegrist, Franziska; Weidmann, Gilles.
The practice abstract explains the use of the duckfoot-bladed hoe or a device combination of harrow and bladed hoe for effective weed control between the rows.
Tipo: Report
Palavras-chave: Cereals; Pulses and oilseeds Weed management.
Ano: 2017
URL: http://orgprints.org/32750/1/Blackgrass%20control%20in%20winter%20cereals%20with%20hoeing.pdf

Blackleg in cattle: current understanding and future research needs
Provedor de dados: 65
Autores: Ziech,Rosangela Estel; Gressler,Leticia Trevisan; Frey,Joachim; Vargas,Agueda Castagna de.
ABSTRACT: Blackleg is an endogenous acute infection that principally affects cattle, whose etiologic agent is the anaerobic bacterium Clostridium chauvoei. In recent years, the major virulence factors of C. chauvoei have been discovered and described. However, the pathogenesis of blackleg in cattle, and in particular, the movement of the pathogen from the point of entry to the affected tissues is not yet fully elucidated. Disease control is based on appropriate management and vaccination. This review summarizes the latest research findings that contribute toward the understanding of the disease in cattle, provide a foundation to preventive strategies, and identify future research needs.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clostridium chauvoei; Sudden death; Myonecrosis.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000500454

Blattlaus- und Erbsenwicklerbefall in Wintererbsen-Reinsaaten: Ein Vergleich zu Sommererbsen-Reinsaaten und Wintererbsen-Mischsaaten
Provedor de dados: 21
Autores: Gronle, Annkathrin; Böhm, Herwart.
The infestation of peas by aphids and moths was assessed in winter pea sole crops and compared to spring pea sole and winter pea-triticale intercrops. The field experiments were conducted in Northern Germany in the growing seasons 2009-2011. The maximum number of pea aphids per plant and the percentage of attacked plants were lower in semi-leafless and normal-leafed winter pea sole crops than in semi-leafless spring peas. Pea moth larvae damaged 6-32 % of seeds in winter peas and 40-55 % of seeds in spring peas. Winter pea-triticale intercropping reduced the attack of pea aphids, whereas no beneficial effect of intercropping was observed concerning moth-damaged peas. Owing to the earlier maturity, winter peas were less susceptible to pea pest attacks than...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions Crop health; Quality; Protection.
Ano: 2013
URL: http://orgprints.org/21332/1/21332_Gronle.pdf

Bleomycin sensitivity in patients with familial and sporadic polyposis: a pilot study
Provedor de dados: 74
Autores: Sales,Magaly M.; Lucca,Edmundo J. de; Yamashita,Seizo; Saad,Luis Henrique Cury.
Human peripheral blood lymphocytes from 10 patients with familial adenomatous polyposis (FAP) showed a significantly higher incidence of chromatid breaks when compared to cells from 10 normal individuals, after exposure to bleomycin (BLM) during the G2 phase. However, no significant increase in bleomycin sensitivity was observed in lymphocytes from 10 patients with sporadic adenomatous polyps (AP) vs. 10 normal individuals (P = 0.67). Individuals that exhibited an average number of chromatid breaks per cell higher than 0.80 were considered sensitive to the drug. No control showed susceptibility to BLM, as compared to 3 out of 20 patients.
Tipo: Info:eu-repo/semantics/article
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571999000100004

Blight-MOP: Development of a systems approach for the management of late blight (caused by Phytophthora infestans) in EU organic potato production
Provedor de dados: 21
Autores: Leifert, C.; Wilcockson, S.J.
Blight-MOP  Late blight (caused by Phytophthora infestans) is the most devastating fungal disease affecting organic (and conventional) potato production in the EU. It kills the foliage and usually results in losses of yield which can be very large when infection is severe and occurs early in the season. The disease may be transmitted to the tubers which become unmarketable and these can lead to complete deterioration of the stored crop if put into storage with healthy tubers. To a great extent, conventional production systems rely upon frequent applications of synthetic fungicides with different modes of action for late blight control, but this is seldom completely successful. However, in organic systems, the availability of chemical fungicides is...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Root crops.
Ano: 2005
URL: http://orgprints.org/10650/1/leifert%2Dwilcockson%2D2005%2Dblight_mop%2Dreport_Front_Cover.pdf

Bloat and colic in horses experimentally induced by the ingestion of Panicum maximum cv. ‘Mombaça’
Provedor de dados: 65
Autores: Cerqueira,Valíria Duarte; Riet-Correa,Gabriela; Duarte,Marcos Dutra; Oliveira,Carlos Alberto de; Riet-Correa,Franklin.
In the Amazon region, sprouting pastures of Panicum maximum cause colic and death in horses and mules. To produce the disease two experiments were performed with growing P. maximum cv. 'Mombaça' in penned horses. In Experiment 1, at the beginning of the raining season, 10 horses were fed with recently harvested sprouting P. maximum. Two horses showed colic on the 5th and 11th day after start of the ingestion. In Experiment 2, also during the raining season, the same 10 horses used in Experiment 2 were divided into two groups of 5 horses each. Group 1 received sprouting P. maximum immediately after harvested and Group 2 received the grass 24 hours after harvested. The control group consisted of four animals which were placed in individual pens and fed with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acute abdomen; Equidae; Intestinal disorders; Panicum maximum.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012001100019

Blood compatibility assessments of electrospun polyurethane nanocomposites blended with megni oil for tissue engineering applications
Provedor de dados: 42
Autores: JAGANATHAN,SARAVANA KUMAR; MANI,MOHAN P.; SUPRIYANTO,EKO.
Abstract: Tissue engineering holds as a prominent technique to repair or replace the damaged human parts to recreate its native function. In this research, a novel scaffold based on polyurethane (PU) comprising megni oil was electrospun for tissue engineering applications. The obtained polyurethane blended with megni oil nanofibers were characterized by scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), contact angle measurement and atomic force microscopy (AFM). Furthermore, the blood compatibility of the fabricated nanocomposites evaluated through activated prothrombin time (APTT), partial thromboplastin time (PT) and hemolysis assay to determine the anticoagulant nature. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polyurethane; Megni oil; Electrospun scaffold; Blood compatibility; Tissue engineering.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300708

Blood glucose regulation during fasting in rats under food restriction since birth
Provedor de dados: 52
Autores: Vitoriano,Adriana de Souza; Malta,Ananda; Barrena,Helenton Christian; Furlan,Maria Montserrat Diaz Pedrosa; Bazotte,Roberto Barbosa; Gazola,Vilma Godoi.
The effect of severe food restriction since birth on regulation of fasting glycemia in male Wistar rats was investigated. The control group (CG) had free supply of chow, while the restriction group (RG) received 50% of the amount ingested by the CG. The experiments were done in adult (60 days) overnight fasted rats in which glycemia, liver free glucose levels and hepatic glycogen concentration were measured. In part of the experiments in situ liver perfusion was done. The results showed that livers from the RG had higher glycogenolysis rates but lower gluconeogenesis rates from L-alanine (10 mM). Since RG showed maintained glycemia during fasting, it could be concluded that livers from RG produced glucose preferentially from glycogenolysis in detriment of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food restriction; Rats; Liver; Gluconeogenesis; Glycogenolysis.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000100009

Blood parameters and hepatic histopathology of broilers fed rations supplemented with essential oils
Provedor de dados: 96
Autores: Santos,Vanessa Kelly Ferreira do Rosário; Nogueira,Wedson Carlos Lima; Santos,Renato de Lima; Oliveira,Neide Judith Faria de; Martins,Ernane Ronie; Azevedo,Izabela Lorena; Carvalho,Tatiane Furtado de; Almeida,Anna Christina de.
ABSTRACT This study aimed to evaluate the hematological profile, hepatic function, and histopathology of mixed-sex broilers fed rations supplemented with microencapsulated essential oils from Cymbopogon flexuosus (lemon grass) and Lippia rotundifolia (chá-de-pedestre). One hundred and fifty Cobb chicks were housed in cages from 1 to 42 days of age in a completely randomized design, with six replicates with five chickens in each of five treatments (150 total chicks): basal diet without antibiotic growth promoter (negative control), diet with enramicina and salinomycin (positive control), diet with lemon grass essential oil, diet with L. rotundifolia essential oil, and diet with a mixture of lemon grass and L. rotundifolia essential oils. Mean corpuscular...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Bird; Bird nutrition; Essential oils; Hematology; Liver.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100518

Blood pressure, heart rate and its autonomic modulation in malnourished rats at different ages
Provedor de dados: 3
Autores: Sant’Helena, Bruna da Rosa Maggi; Brasileiro-Santos, Maria do Socorro; Falcão, Elis Pereira; Duarte, Denia Palmeira Fittipaldi; Pontes Filho, Nicodemos Telles de; Costa, Carlos Peres da.
Malnutrition is responsible for a number of alterations that occur in the organism, including alterations in the cardiovascular system. We hypothesize that long periods of malnutrition occurring after weaning may also be responsible for alterations in the cardiovascular system. Wistar rats were separated into the two following experimental groups: a labina® diet-fed control group (CG) and a malnourished group (MG), fed a multi-deficient diet. Results showed that the mg presented significantly lower body weight (p &lt; 0.001) in rats of all ages, higher heart rate (HR) (p &lt; 0.05) when rats were 3, 4 and 5 months old and lower HR in rats from 6 to 9 months of age, in relation to the CG. Spectral analysis showed a significant increase in the low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 2.07.00.00-8; Aging; Multi-deficient diet; Eletrocardiography; Spectral analysis morphology of the ventricles Fisiologa.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/21482

Bloodstream infections caused by ESBL-producing E. Coli and K. pneumoniae: risk factors for multidrug-resistance
Provedor de dados: 55
Autores: Serefhanoglu,Kivanc; Turan,Hale; Timurkaynak,Funda Ergin; Arslan,Hande.
This prospective case-control study was conducted from October 2003 to June 2007 to evaluate risk factors for multidrug resistance among extended-spectrum-b-lactamase-producing Escherichia coli and Klebsiella spp. (ESBL-EK) isolates in blood cultures. All adult patients (&gt;18 years old) whose blood cultures grew ESBL-EK during the study period were included. An ESBL-EK isolate was defined as MDR if it was resistant to at least one member of following two classes of antibiotics: aminoglycosides (amikacin, gentamicin, or netilmycin) and fluoroquinolones (ofloxacin, or ciprofloxacin). Case patients were those with a MDR ESBL-EK isolate, and control patients were those with a non-MDR ESBL-EK isolate. A total of 94 bloodstream infections, including 37 (39,4%)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ESBLs; Multidrug resistance; Risk factors.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000600003

Bluetongue virus spread in Europe is a consequence of climatic, landscape and vertebrate host factors as revealed by phylogeographic inference
Provedor de dados: 5
Autores: Jacquot, Maude; Nomikou, Kyriaki; Palmarini, Massimo; Mertens, Peter; Biek, Roman.
Spatio-temporal patterns of the spread of infectious diseases are commonly driven by environmental and ecological factors. This is particularly true for vector-borne diseases because vector populations can be strongly affected by host distribution as well as by climatic and landscape variables. Here, we aim to identify environmental drivers for bluetongue virus (BTV), the causative agent of a major vector-borne disease of ruminants that has emerged multiple times in Europe in recent decades. In order to determine the importance of climatic, landscape and host-related factors affecting BTV diffusion across Europe, we fitted different phylogeographic models to a dataset of 113 time-stamped and geo-referenced BTV genomes, representing multiple strains and...
Tipo: Text
Palavras-chave: Bluetongue; Phylogeography; Viral diffusion; Environmental drivers; Predictor testing; Vector-borne pathogen.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00667/77880/80026.pdf

Bodenbearbeitung und Unkrautregulierung im ökologischen Landbau [Soil cultivation and weed control in organic farming]
Provedor de dados: 21
Autores: Schleuß, Uwe.
Bodenbearbeitung und Unkrautregulierung gehören unter den Produktionsbedingungen des ökologischen Landbaus  zu den wichtigsten Maßnahmen, um Erträge zu steigern und zu sichern. Die Unkrautregulierung muss sinnvoll in die pflanzenbaulichen Maßnahmen eingebunden sein, wobei Art und Zeitpunkt der Bodenbearbeitung, Feldhygiene, Zwischenfruchtanbau, Fruchtfolge und Bestandesführung als indirekte Maßnahmen besonders wichtig sind. Verschiedene neuere landtechnische Entwicklungen auf dem Gebiet der Unkrautregulierung können zu deutlichen Produktionsfortschritten beitragen, wobei folgende Anforderungen zu stellen sind: zweckmäßiger Bekämpfungserfolg, hohe Schlagkraft, Reduzierung der Handarbeit, Bodenschonung, ökologische Verträglichkeit, geringer Energieverbrauch...
Tipo: Journal paper
Palavras-chave: Weed management; Soil tillage.
Ano: 2003
URL: http://orgprints.org/845/1/845%2Dschleuss%2D2003%2Dunkrautregulierung%2Dlandtechnik.pdf

Body chemical composition, tissue deposition rates and gain composition of young Nellore cattle selected for postweaning weight
Provedor de dados: 96
Autores: Bonilha,Eduardo Figueiredo Martins; Branco,Renata Helena; Bonilha,Sarah Figueiredo Martins; Araújo,Fabiana Lana de; Cyrillo,Joslaine Noely dos Santos Gonçalves; Magnani,Elaine.
Empty body and carcass chemical composition were determined in 67 Nellore bulls from Selection Nellore (NeS) and Control Nellore (NeC) herds of an animal breeding program for growth, slaughtered at 570 days of average age, after 100 days of feedlot. Selection Nellore animals had, respectively, 360 and 430 kg of initial and slaughter body weight, and NeC animals had 318 and 373 kg for the same traits. Animals were slaughtered and empty body composition was determined by chemical analysis of the components blood, hide, head and feet, viscera and carcass. Tissue deposition rates and gain chemical composition were also determined based on gains estimated by comparative slaughter technique. Significant differences were detected between NeS and NeC animals for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bos indicus; Efficiency; Fat; Protein; Selection; Weight gain.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000400175

Body composition and deposition efficiency of protein and energy in grazing young bulls
Provedor de dados: 2
Autores: Valente, Eriton Egidio Lisboa; Universidade Estadual do Oeste do Paraná; Paulino, Mário Fonseca; Universidade Federal de Viçosa; Marcondes, Marcos Inácio; Universidade Federal de Viçosa; Dias, Isabela Fernanda Teixeira; Universidade Federal de Viçosa.
The effects of supplementation with different protein: carbohydrate ratios on body composition, carcass characteristics and protein and energy deposition efficiency of young were assessed. Twenty-four Nellorecalves (132.5 ± 5.5 kgand 90-150 days of age) were kept on pasture for a 430 day experimental period. The treatments were: Control = mineral mixture only; HPHC = high-protein and high-carbohydrate supplement; HPLC = high-protein and low-carbohydrate supplement; LPHC = low-protein and high-carbohydrate supplement; LPLC = low-protein and low-carbohydrate supplement. Four animals at begning and 20 animal at end of experiment were slaughtered to evaluate the carcass composition. Control bulls had the lowest (p &amp;lt; 0.05) intake of ME (9.8 Mcal day-1)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.04.03.00-1 associative effects; Beef cattle; Calf; Grazing; Multiple supplement; Production.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21345

Body composition and energy and protein requirements of grazing Nelore steers
Provedor de dados: 96
Autores: Almeida,Vitor Visintin Silva de; Queiroz,Augusto César de; Silva,Fabiano Ferreira da; Silva,Robério Rodrigues; Oliveira,Aline Cardoso; Souza,Danilo Ribeiro de.
This experimentwas carried out with the objective of determining the energy and protein requirements of grazing Nellore steers. Twenty four Nellore steers (average 371 ± 14 kg of BW and 26 months old) were used. Four steers were slaughtered at the beginning of the experiment (reference group), serving as a reference for the subsequent study. The remaining 20 animals were weighed and distributed in a randomized complete block design with four levels of supplementation offers: 0.0 (mineral mixture - control), 0.3, 0.6 and 0.9% BW, with five replications. The supplements, based on ground corn, soybean meal and/or urea, were previously balanced to achieve an average daily gain of 350, 650 and 850g, respectively, for the different levels of supplementation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy; Protein; Requirements; Zebu cattle.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000700026

Body composition and net and dietary macrominerals requirements of Nellore steers under grazing
Provedor de dados: 96
Autores: Almeida,Vitor Visintin Silva de; Queiroz,Augusto César de; Silva,Robério Rodrigues; Silva,Fabiano Ferreira da; Oliveira,Aline Cardoso; Santana Júnior,Hermógenes Almeida de.
This experiment was carried out with the objective of determining the macrominerals (Ca, P, Mg, K and Na) requirements of Nellore steers under grazing. Twenty four Nellore steers (371 ± 14 kg of BW and 26 mo old) were used. Four steers were slaughtered at the beginning of the experiment (reference group), serving as a reference in subsequent study. The remaining 20 animals were weighed and distributed into a completely randomized design with four supplementation levels offer: 0.0 (mineral mixture - control), 0.3, 0.6 and 0.9% of BW, with five replications. The supplements, based on ground corn, soybean meal and/or urea, were previously balanced to achieve an average daily gain of 350, 650 and 850g, respectively, for the different supplementation levels...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Macrominerals; Pasture; Requirements; Zebu cattle.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000600016

Body Condition Scoring (BCS) zur Kontrolle von Fütterungsfehlern bei Milchkühen im Biolandbau im Hinblick auf Risiken für die Eutergesundheit
Provedor de dados: 21
Autores: Klocke, Peter; Dollinger, Julia; Ivemeyer, Silvia; Heil, Fritz.
Body Condition Scoring (BCS) is a simple method to control the energy supply of single dairy cows as well as for the entire herd. This is very important especially for organic herds due to limited resources of energy intake. Within an udder health pro-gramme regular BCS using a 5 point scale with 0.25 pt. steps is a good tool to detect feeding problems. The impact of fattened cows during dry time and meagre cows during lactation peak on metabolic health and fertility is known, but not the correlation between BCS and udder health. Within the extension programme “pro-Q” 530 dairy cows were scored at minimum twice during one lactation. The first time was 10 days before to 5 days after calving (BCS-1), the second time was in lactation up to day 100 (once or...
Tipo: Conference paper, poster, etc.
Palavras-chave: Dairy cattle; Health and welfare.
Ano: 2007
URL: http://orgprints.org/9432/1/9432_Klocke_Vortrag.pdf

Body measurements and serum lipid profile of overweight adult dogs fed diet with containing conjugated linoleic acid
Provedor de dados: 65
Autores: Rivera,Nancy Lorena Montaño; Félix,Ananda Portela; Ferreira,Fabiano Montiani; Silva,Ana Vitória Fisher da; Maiorka,Alex.
Studies with human beings and animals have shown that dietary conjugated linoleic acid (CLA) promotes changes in body structure, markedly, body fat reduction. This research aimed to assess the effect of CLA (60% of conjugated linoleic acid methyl ester, at the proportion of 1:1 of the 9, 11: 10, 12 isomers) on changes in body weight, subcutaneous tissue thickness, body fat mass and concentration of serum lipids (triacylglycerols, total cholesterol, LDL and HDL) in overweight dogs. Dogs of different breeds weighting 16.85±7.13 assigned in a randomized assay. Two types of diets were offered for 120 days: control (-CLA) and test (+CLA, 0.3%). There was no difference between control and test groups considering body weight and serum levels of triacylglycerols,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body condition; Cholesterol; CLA.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011001100028

Body reserves and pregnancy rates of introduced red deer in Patagonia (Argentina) after a period of drought
Provedor de dados: 67
Autores: Flueck,Werner T.
Red deer (Cervus elaphus) were introduced to Patagonia in the 1920´s and have reached high densities in certain areas of the forest-steppe ecotone. Severe drought conditions during summer/autumn of 1999 were suspected to have an impact on reproduction of red deer. Necropsies of 50 adult females revealed a pregnancy rate of only 56% as compared to 98% in 1992-1998 or 100% in 1996-1997 in other population. The age distribution of pregnant females reflected the importance of not having been pregnant during the previous cycle. The primiparous 2 year-old females had a 77% pregnancy rate, whereas none of the lactating females were pregnant. Normally, a higher reproductive success occurs for middle age classes, thereby reducing the chances of becoming pregnant...
Tipo: Info:eu-repo/semantics/article
Ano: 2001
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2001000100004

Body shape variation in meiotic gynogenetic and triploid sea bass, Dicentrarchus labrax
Provedor de dados: 5
Autores: Peruzzi, Stefano; Wiborg-dahle, Stine; Haffray, Pierrick; Chatain, Beatrice; Primicerio, Raul.
A method of geometric morphometrics was used to characterize body shape variation in meiotic gynogenetic and triploid sea bass in comparison with diploid controls. A total of 13 coordinate landmark data were recorded on the profile of 34-month-old control (n = 81), gynogenetic (n = 117) and triploid (n = 131) siblings generated from two females (A and B). Three main axes of morphometric variation were consistent, and these accounted for 60.8 and 57.6% of the total variability in females A and B, respectively. There were significant shape deviations of triploid and gynogenetic fish relative to the controls, and differences were particularly evident in the progeny of one female. Overall, triploids displayed a more slender shape than diploids, whereas...
Tipo: Text
Palavras-chave: Body shape variability; Morphometry; Geometry of Procrustes distance; Triploidy; Gynogenesis; European sea bass; Dicentrarchus labrax.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00025/13651/10757.pdf

Body Weight and Labour Market Outcomes in Post-Soviet Russia
Provedor de dados: 31
Autores: Huffman,   Sonya Kostova; Rizov,   Marian.
This paper estimates the impacts of weight, measured by body mass index (BMI), on employment, wages, and missed work due to illness for Russian adults by gender using recent panel data (1994-2005) from the nationally representative Russian Longitudinal Monitoring Survey (RLMS). We employ econometric techniques to control for unobserved heterogeneity and potential biases due to endogeneity in BMI. The results show an inverted U-shaped effect of BMI on probability of employment for men and women. We did not find evidence of wage penalty for higher BMI. In fact, the wages for overweigh men are higher. However, having a BMI above 28.3 increases the number of days missing work due to health problems for men. Overall, we find negative effects of obesity on...
Tipo: Presentation
Palavras-chave: BMI; Obesity; Labour market outcomes; Russia; Health Economics and Policy; Labor and Human Capital.
Ano: 2012
URL: http://purl.umn.edu/123539

Boekbespreking 1: J.H. Myers &amp; D.R. Bazely, Ecology and control of introduced plants
Provedor de dados: 16
Autores: Roos, Marco.
Tipo: Article / Letter to the editor
Ano: 2005
URL: http://www.repository.naturalis.nl/record/528122

Boletín Informativo
Provedor de dados: 20
Informe especial sobre el 25º Período Sesesiones del Comité de Pesca (COFI) de la FAO. Informe sobre la Aplicación del CCPPR y Planes de Acción Internacionales Conexos (Capacidad, Pesca Ilegal No Declarada y No Reglamentadas – IUU, Inglés / INDRN, Español – Aves Marinas, Tiburones) y la Mejora de la Eficacia del Seguimiento, Control y Vigilancia de los Buques Pesqueros. Decisiones y Recomendaciones del Sub Comité de COFI sobre Comercio Pesquero (Bremen 2002). Desiciones y Recomendaciones de la 1ra. Reunión del Sub Comité de COFI sobre Acuicultura. La pesca en pequeña escala. CITES (Comité para la Protección de Fauna y Flora en Amenaza de Extinción).
Tipo: Report
Palavras-chave: Fishing; Trade; Fishing; Trade; Http://aims.fao.org/aos/agrovoc/c_26950; Http://aims.fao.org/aos/agrovoc/c_7848.
Ano: 2003
URL: http://hdl.handle.net/1834/2789

Boletín Informativo
Provedor de dados: 20
Informe especial sobre el 25º PERIODO SESESIONES DEL COMITÉ DE PESCA (COFI) DE FAO Roma, 24 al 28 de febrero de 2003 Informe sobre la Aplicación del CCPPR y Planes de Acción Internacionales Conexos (Capacidad, Pesca Ilegal No Declarada y No Reglamentadas - IUU, Inglés / INDRN, Español - Aves Marinas, Tiburones) y la Mejora de la Eficacia del Seguimiento, Control y Vigilancia de los Buques Pesqueros. Decisiones y Recomendaciones del Sub Comité de COFI sobre Comercio Pesquero (Bremen 2002) Decisiones y Recomendaciones de la 1ra. Reunión del Sub Comité de COFI sobre Acuicultura. La pesca en pequeña escala. CITES (Comité para la Protección de Fauna y Flora en Amenaza de Extinción)
Tipo: Report
Palavras-chave: Aquaculture; Trade; Aquaculture; Trade; Http://aims.fao.org/aos/agrovoc/c_550; Http://aims.fao.org/aos/agrovoc/c_7848.
Ano: 2003
URL: http://hdl.handle.net/1834/2787

BOLL WEEVIL CONTROL STRATEGIES: REGIONAL BENEFITS AND COSTS
Provedor de dados: 31
Autores: Taylor,   C. Robert; Lacewell,   Ronald D.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1977
URL: http://purl.umn.edu/29305

Boll weevil within season and off-season activity monitored using a pheromone-and-glue reusable tube trap
Provedor de dados: 63
Autores: Neves,Robério Carlos dos Santos; Torres,Jorge Braz; Barros,Eduardo Moreira; Vivan,Lúcia Madalena.
ABSTRACT: The boll weevil colonizes cotton fields as early as cotton squaring, causing significant losses due to feeding and protected development inside fruiting structures throughout crop phenology. Successful control depends on control of adults and their accurate detection when they colonize the crops. The commercial trap and boll weevil attract-and-control tubes (BWACT) are the only available tools to monitor and attract-and-kill boll weevil, despite limitation in efficacy, and insecticide in BWACT is not allowed in organic production. A grandlure-and-glue reusable and insecticide-free tube (GGT) made with polyvinyl chloride tube, smeared with entomological glue, and lured with pheromone was tested to detect boll weevil activity across various...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anthonomus grandis; Control threshold; Cotton pest; Survey.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000400313

Bombus terrestris as an entomovector for suppressing Botrytis cinerea in open field strawberry
Provedor de dados: 21
Autores: Mänd, Marika; Karise, Reet; Muljar, Riin.
Strawberry (Fragaria x ananassa) is a fruit crop grown worldwide, but diseases such as the grey mould Botrytis cinerea frequently limit its yield. Most of grey mould infection on the fruits is initiated during the flowering period. Use of foraging bees as disseminators of microbial control agents (MCAs) to flowers is known as entomovector technology. Many researchers have shown that bumble bees can efficiently vector MCAs; however, most studies have been conducted in greenhouse conditions.
Tipo: Conference paper, poster, etc.
Palavras-chave: Biodiversity and ecosystem services Crop health; Quality; Protection.
Ano: 2013
URL: http://orgprints.org/28649/1/M%C3%A4nd%20ja%20Karise%20Behaviour2013.pdf

Bonamia parasites: a rapidly changing perspective on a genus of important mollusc pathogens
Provedor de dados: 5
Autores: Engelsma, Marc; Culloty, Sarah C.; Lynch, Sharon A.; Arzul, Isabelle; Carnegie, Ryan B.
Organisms of the genus Bonamia are intracellular protistan parasites of oysters. To date, 4 species have been described (B. ostreae, B. exitiosa, B. perspora and B. roughleyi), al though the status of B. roughleyi is controversial. Introduction especially of B. ostreae and B. exitiosa to naïve host populations has been shown to cause mass mortalities in the past and has had a dramatic impact on oyster production. Both B. ostreae and B. exitiosa are pathogens notifiable to the World Organisation for Animal Health (OIE) and the European Union. Effective management of the disease caused by these pathogens is complicated by the extensive nature of the oyster production process and limited options for disease control of the cultured stocks in open water. This...
Tipo: Text
Palavras-chave: Bonamia ostreae; Bonamia exitiosa; Oyster disease; Phylogenetics; Geographical spread; Diagnostics; Epizootiology; Host-parasite interaction; Bonamiosis.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00200/31169/29568.pdf

BONE CHARACTERISTICS OF BROILERS SUPPLEMENTED WITH VITAMIN D
Provedor de dados: 89
Autores: Colet,S; Garcia,RG; Almeida Paz,ICL; Caldara,FR; Borille,R; Royer,AFB; Nääs,IA; Sgavioli,S.
ABSTRACTVitamin D is added to broiler diets to supply its physiological requirement for bone formation. The fast growth rate of modern broilers is often associated with poor bone formation. Increasing vitamin D supplementation levels and the use of more available sources have applied to try to prevent leg problems, to increase carcass yield, and to improve the performance of broilers. The present study evaluated three vitamin D supplementation levels (1) 3,500 IU (control); (2) control + 1,954 IU of 25-hydroxycholecalciferol; and (3) control + 3,500 IU of vitamin D in broiler diets supplied up to 21 days of age. The objective was to investigate if the vitamin D levels above the recommendations could reduce leg problems in broilers. In this experiment, a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gait score; Tibial dyschondroplasia; Valgus; Varus; Pododermatitis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300325

Bone mineral density and inflammatory bowel disease severity
Provedor de dados: 56
Autores: Lima,C.A.; Lyra,A.C.; Mendes,C.M.C.; Lopes,M.B.; Coqueiro,F.G.; Rocha,R.; Santana,G.O.
Inflammatory bowel disease (IBD) is associated with low bone mineral density (BMD). In this study, the association between disease severity and BMD in patients with IBD was evaluated. Associations between BMD and the Montreal classification, disease activity and drug therapy were also tested. A cross-sectional prevalence study with a comparison group was conducted. One hundred and twenty-eight patients were evaluated: 68 patients with ulcerative colitis (UC), and 60 with Crohn's disease (CD). The control group consisted of 67 healthy subjects. All patients and controls had BMD measured and in IBD patients, current medications, hospitalization, and disease location, extent and phenotype, according to the Montreal classification, were recorded. Multiple...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bone mineral density; Ulcerative colitis; Crohn’s disease; Inflammatory bowel disease; Osteoporosis.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001200614

Bone mineral density in juvenile systemic lupus erythematosus
Provedor de dados: 56
Autores: Castro,T.C.M.; Terreri,M.T.; Szejnfeld,V.L.; Castro,C.H.M.; Fisberg,M.; Gabay,M.; Hilário,M.O.E.
We evaluated spine bone mineral density (BMD) in Brazilian children with juvenile systemic lupus erythematosus (JSLE) in order to detect potential predictors of reduction in bone mass. A cross-sectional study of BMD at the lumbar spine level (L2-L4) was conducted on 16 female JSLE patients aged 6-17 years. Thirty-two age-matched healthy girls were used as control. BMD at the lumbar spine was measured by dual-energy X-ray absorptiometry. Weight, height and pubertal Tanner stage were determined in patients and controls. Disease duration, mean daily steroid doses, mean cumulative steroid doses and JSLE activity measured by the systemic lupus erythematosus disease activity index (SLEDAI) were determined for all JSLE patients based on their medical charts. All...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Systemic lupus erythematosus; Children; Adolescents; Bone mineral density; Osteoporosis; Corticosteroids.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002001000008

Bone mineral density of Brazilian girls with juvenile dermatomyositis
Provedor de dados: 56
Autores: Castro,T.C.M. de; Terreri,M.T.R.A.; Szejnfeld,V.L.; Len,C.; Fonseca,A.S.M. da; Hilário,M.O.E.
We measured bone mineral density (BMD) in girls with juvenile dermatomyositis (JDM) considering multiple factors in order to determine if it could be used as a predictor of reduction in bone mass. A cross-sectional study of lumbar spine BMD (L2-L4) was conducted on 10 girls aged 7-16 years with JDM. A group of 20 age-matched healthy girls was used as control. Lumbar spine BMD was measured by dual-energy X-ray absorptiometry. Weight, height and pubertal Tanner stage were determined in all patients and controls. Duration of disease and mean daily and cumulative steroid doses were calculated for all patients on the basis of their medical charts. JDM activity was determined on the basis of the presence of muscle weakness, cutaneous vasculitis and/or elevation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dermatomyositis; Adolescent girls; Bone mineral density; Osteoporosis; Corticosteroids.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000200020

Bone regeneration in mandible defect with autograft bone and cell suspension from bone marrow in rabbits
Provedor de dados: 45
Autores: Gomes,C.; Paz,A.H.; Bonilla,A.T.; Corrêa,A.; Cavalcante,R.L.; Veiga,D.; Colomé,L.M.; Foerstnow,L.P.; Contesini,E.A.; Cirne-Lima,E.O.
The objective of this study was to investigate the bone regeneration of a "gold standard" (autograft) from iliac crest associated with cellular therapy in rabbits. A bone defect was created with 10x5x5mm in 28 rabbit mandibles. The control group animals (n=14) were repaired with autograft of iliac crest and the experimental group animals (n=14) received iliac crest autograft in association with mononuclear cells from the bone marrow of the femur. Weekly radiographs were taken of the surgery region and histological analyses was performed in seven animals in each group at 15 days and in seven animals of each group at 30 days after the surgery. A gradual increase of bone density was observed and the experimental animals presented the bone bridge in 85.7%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rabbit; Mandibular reconstruction; Bone regeneration; Graft.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000400007

BONEFILL ® block as alternative for bone substitute: a toxicological evaluation
Provedor de dados: 60
Autores: Melchior,Karine; Saska,Sybele; Coelho,Fernanda; Scarel-Caminaga,Raquel Mantuaneli; Capote,Ticiana Sidorenko de Oliveira.
ABSTRACT Bone substitutes based on hydroxyapatite (HA) and Bonefill® (BO - inorganic bovine bone) associated with poly(lactic-co-glycolic acid) (PLGA) (HA/PLGA and BO/PLGA) were evaluated concerning cytotoxicity, genotoxicity and mutagenicity as potential candidates for bone repair. The materials were developed and provided by Bionnovation Biomedical Products Ltda. Eluates from these bone substitutes were prepared for toxicity evaluations using eukaryotic cell cultures. HA/PLGA was used as a comparison for Bonefill®. Cell viability was evaluated by XTT assay and surviving fraction was calculated for clonogenic survival. Additionally, tail moment was used to assess genotoxicity (comet assay). The frequencies of binucleated cells with micronucleus (FBMN),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: BONEFILL®/toxicity; Biomaterials/evaluation; Bone regeneration; Hydroxyapatite.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502018000200611

Bonferroni's and Sidak's modified tests
Provedor de dados: 63
Autores: Conagin,Armando; Barbin,Décio.
Results of practical importance had been discarded testing formulated hypothesis with the aid of statistical analysis of experimental data because of the power of the utilized test. This study compares the power of two Bonferroni's Modified and one Sidak's Modified tests with known tests analyzing 1200 simulated experiments. All differences of means were obtained in relation to the mean of the adopted control to guarantee parametrical magnitude of mean differences. Student's test (type I comparisonwise error) and Waller-Duncan's (Bayesian error) showed the highest percentage of significative differences, followed by Duncan's, BM2, SiM, BM1, DunnettU's, SiN, BN, Dunnettu's, SNK's, REGWF's, REGWQ's, Tukey's, Sidak's and Bonferroni's tests. For differences...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Statistical tests; Efficiency of tests; Multiples comparisons.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100011

Books received by the Rijksherbarium library
Provedor de dados: 16
Autores: NN.
The Ascomycete genus Monilinia Honey with its anamorph Monilia includes many parasites of woody perennials, including economically important fruit-trees. This study treats the morphology in vivo and in vitro and detailed life histories; it evaluates, describes and selects criteria for the generic and infrageneric definition of taxa; it discusses host-pathogen interactions, symptoms, nature of losses, extent of host-specificity of the various species, including cross-inoculation work in the greenhouse, and reviews control measures for the eight economically important species. Two dichotomic keys facilitate the identification of the taxa.
Tipo: Article / Letter to the editor
Ano: 1992
URL: http://www.repository.naturalis.nl/record/532277

Bordonein-L, a new L-amino acid oxidase from Crotalus durissus terrificus snake venom: isolation, preliminary characterization and enzyme stability
Provedor de dados: 80
Autores: Bordon,Karla C. F.; Wiezel,Gisele A.; Cabral,Hamilton; Arantes,Eliane C.
BackgroundCrotalus durissus terrificus venom (CdtV) is one of the most studied snake venoms in Brazil. Despite presenting several well known proteins, its L-amino acid oxidase (LAAO) has not been studied previously. This study aimed to isolate, characterize and evaluate the enzyme stability of bordonein-L, an LAAO from CdtV.Methods The enzyme was isolated through cation exchange, gel filtration and affinity chromatography, followed by a reversed-phase fast protein liquid chromatography to confirm its purity. Subsequently, its N-terminal amino acid sequence was determined by Edman degradation. The enzyme activity and stability were evaluated by a microplate colorimetric assay and the molecular mass was estimated by SDS-PAGE using periodic acid-Schiff...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crotalus durissus terrificus; L-amino acid oxidase; Rattlesnake; Enzyme activity; Enzyme stability; Chromatography; Snake venom; Yellow venom; Stabilization.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100335

Boric acid in germination of pollen grains and fruit set of peach cultivars in subtropical region
Provedor de dados: 124
Autores: Souza,Filipe Bittencourt Machado de; Pio,Rafael; Tadeu,Maraísa Hellen; Zambon,Carolina Ruiz; Gregory,L. Reighard.
ABSTRACT The pollination and fertilization process directly affects the crop yield of peach. Previous studies have shown that some cultivars lack consistent cropping (yield variation) in subtropical regions. The application of boric acid at flowering can minimize this problem. This study quantified the germination of pollen grains and fruit set on 18 cultivars of peach in a subtropical region when treated with boric acid at bud. The initial spray treatments were three concentrations of boric acid (400 mgL-1, 800 mgL-1 and 1,200 mgL-1) plus a control treatment of water. Treatments were sprayed on the shoots when the flower buds were flower bud swelling on early maturing cultivars Aurora 2 and Doçura 2. There is a cultivar difference where 'Aurora 2' had a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prunus persica; Pollination; Fertilization; Boron.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000300496

Boron affects the growth and ultrastructure of castor bean plants
Provedor de dados: 63
Autores: Silva,Denis Herisson da; Rossi,Monica Lanzoni; Boaretto,Antonio Enedi; Nogueira,Neusa de Lima; Muraoka,Takashi.
The cultivation of oleaginous plants like the castor bean guarantees employment for agricultural families and can contribute in energy and chemical sectors, especially in the northeastern semi-arid regions of Brazil. Boron (B) deficiency is a widespread nutritional disorder despite the fact that various anthropogenic sources with high B content may increase soil B to toxic levels for plants. The present study was designed to investigate the ultrastructural effects of boron deficiency and toxicity on castor bean plants which were grown under greenhouse condition using plastic containers with 10 L of nutrient solution. Boron treatments comprised: control (no B); 0.27 mg L-1, 5.40 mg L-1 B pots (one plant per pot), tested in a completely randomized design...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Electron microscopy; Middle lamellae; Micronutrient; Xylem; Starch.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000600014

Boron as Testicular Toxicant in Mice (Mus domesticus)
Provedor de dados: 77
Autores: Bustos-Obregón,Eduardo; Olivares,Christopher.
It has been reported that boron causes changes in various systems, including the male reproductive system. Residents in some towns in northern Chile were consuming a few years ago in the drinking water 20 times more than the amount established as permissible limit by WHO. This study evaluates the effects in an animal model of high intake of boron on the testis. Boron was administered in the drinking water. Twenty male mice (Mus domesticus), sexually mature, were used, divided into 2 groups: the experimental group was given Boron at a dose of 12 mg/L, and the control group 0.6 mg/L, for 42 days. Sections of testis were obtained for: HE staining (Morphometry and Histopathology), Immunohistochemistry (Cox-2), Mallory and Picrosirious stain (evaluation of...
Tipo: Journal article
Palavras-chave: Boron; Mouse; Testicular structure; Collagen I/III; Infertility.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300057

Boron dynamics related to fruit growth and seed production in kiwifruit (Actinidia deliciosa, cv. Hayward)
Provedor de dados: 118
Autores: Sotomayor,Carlos; Norambuena,Paulina; Ruiz,Rafael.
The effect of foliar boron treatments on fruit growth and seed development in Actinidia deliciosa, cv. Hayward, was studied. The distal leaves (BH) or fowers (BF) of a shoot were sprayed with 500 mg L-1 boric acid during the fowering period. The mobility of boron from the leaves to the fowers through the phloem was determined by spraying only the leaves. From 0 to 96 h after treatment, leaves and fowers were sampled and total boron was assessed. At harvest time, fruit weight and diameter plus seed weight and number were measured for the different treatments. The weight of fruits growing from shoots with boron-treated leaves were 14.1% higher than the control, while the weight of fruits derived from boron-treated fowers was 17% higher than that of fruits...
Tipo: Journal article
Palavras-chave: Boric acid; Boron; Fruit weight; Kiwifruit; Seed number; Seed weight.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000100013

Boron nutrition and yield of alfalfa cultivar crioula in relation to boron supply
Provedor de dados: 63
Autores: Santos,Anacleto Ranulfo dos; Mattos,Waldssimiler Teixeira de; Almeida,Ana Aparecida da Silva; Monteiro,Francisco Antonio; Corrêa,Beatriz Dias; Gupta,Umesh C.
Alfalfa cultivar Crioula (Medicago sativa cv. Crioula) is grown in South Brazil and only a few studies on the plants' boron requirement are available. A greenhouse experiment was carried out with alfalfa to measure boron acquisition, production and distribution in the plant; data on critical level and production potentials were recorded. Plants were grown in ground quartz added with 1 L of solution, with the following boron rates: 0, 0.0625, 0.125, 0.25, 0.50, 1.00, and 2.00 mg L-1. Plants were harvested at 46 days of growth. Forage dry mass was increased by boron supply and dry matter accumulation was considerably low in control. Boron concentration in the leaves was higher than in the stems or roots. Boron utilization from the external solution reached...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lucerne; Medicago sativa; Plant nutrition; Micronutrient; Critical level.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000500006

Botanical extracts: alternative control for silverleaf whitefly management in tomato Extratos botânicos: controle alternativo para o manejo de mosca-branca em tomateiro
Provedor de dados: 75
Autores: Baldin,Edson LL; Fanela,Thiago LM; Pannuti,Luiz ER; Kato,Massuo J; Takeara,Renata; Crotti,Antônio EM.
Bemisia tabaci (Hemiptera: Aleyrodidae) biotype B is one of the most limiting pests of tomato crops in the world. Tomato yield is currently dependent on the use of pesticides, which are problematic to farmers, consumers and the environment. A promising alternative to reduce the harmful effects caused by the indiscriminated use of synthetic insecticides is the use of insecticides of botanical origin. This study aimed to evaluate the effect of 3% (w/v) aqueous extracts from different structures of thirteen botanical species on the behavior of B. tabaci biotype B adults, as well as insecticidal activity of such aqueous extracts on B. tabaci eggs, nymphs, and adults infesting tomato plants. A distilled water solution was used as a negative control, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bemisia tabaci; Solanum lycopersicum; Hemiptera; Aqueous extracts.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362015000100059

Bothrops jararacussu venom-induced neuromuscular blockade inhibited by Casearia gossypiosperma Briquet hydroalcoholic extract
Provedor de dados: 80
Autores: Camargo,TM; Nazato,VS; Silva,MG; Cogo,JC; Groppo,FC; Oshima-Franco,Y.
The hydroalcoholic extract of Casearia gossypiosperma Briquet (Flacourtiaceae) was standardized for the first time through quality control procedures including pharmacognostic methods, fingerprint chromatograms, defined amounts of marker substances and physicochemical characteristics. The pharmacological activity of C. gossypiosperma (Cg) hydroalcoholic extract was assayed by a traditional in vitro test, which involved irreversible neuromuscular blockade induced by Bothrops jararacussu (Bjssu) venom (60 µg/mL) in mouse phrenic nerve-diaphragm preparations. Bjssu venom blocked muscle activity for 26 (± 2.0) minutes (n = 6). Cg extract (0.1 mg/mL) induced changes on the baseline muscle activity without impairing the muscle function and inhibited 87.6% (±...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibothropic extract; Bothrops jararacussu; Casearia gossypiosperma Briquet; Snake venoms.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000300009

Botrytis gray mold of chickpea
Provedor de dados: 30
Autores: M.P.
Palavras-chave: Chickpeas; Fungi; Grain legumes; Genotypes; Disease resistance; Sowing date; Yield losses; Pathogens; Chemical control; Cultural control.
Ano: 1992
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4169

Bottom-up and top-down effects on algal community dynamics in an aridland river:  the Middle Rio Grande, New Mexico&amp;#xb;
Provedor de dados: 17
Autores: Ayesha S. Burdett; Rebecca J. Bixby.
Background/Question/Methods&amp;#xd;&amp;#xa;&amp;#xd;&amp;#xa;In this study, we examined interactive effects of nutrient availability, river flow and food web structure on algal growth and species composition in the Middle Rio Grande, New Mexico. Algal community dynamics can be affected by both bottom-up and top-down factors. Algal production may be limited by low levels of nutrients or low light availability. Conversely, production is expected to increase when nutrient levels are high and light availability is not limited.  Top-down factors such as grazing by invertebrates can also alter periphyton growth and community composition. Generally, a reduction in grazers results in periphyton biomass increases and shifts in growth forms (to more upright...
Tipo: Poster
Palavras-chave: Ecology.
Ano: 2009
URL: http://precedings.nature.com/documents/3664/version/1

Boundary control subnational authoritarianism in federal democracies
Provedor de dados: 121
Autores: Edward L. Gibson; Gibson, Edward L.
Tipo: Text
Palavras-chave: DEMOCRACIA; AUTORITARISMO; GOBIERNO FEDERAL.
Ano: 2012
URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=135676&tab=opac&oai:flacso.org.ec:135676

Bovine colostral antibodies and selected lactobacilli as means to control gastrointestinal infections
Provedor de dados: 21
Autores: Rokka, Susanna.
The aims of this study were to investigate the effects of bovine colostrum and specific colostral antibodies, and some lactic acid bacteria on gastrointestinal infections, especially Helicobacter pylori induced gastritis and dental caries caused by Streptococcus mutans. The effect of colostrum on the activity of the complement system in neonatal calves was also studied.    It was possible to increase substantially complement and opsonization activities of serum by feeding colostral whey concentrate to neonatal calves. A colostral immune preparation (IP) containing specific antibodies against Helicobacter felis prevented but did not eradicate an experimental Helicobacter felis infection in mice. However, the IP combined with amoxicillin lowered the level of...
Tipo: Thesis
Palavras-chave: Health and welfare.
Ano: 2008
URL: http://orgprints.org/14862/1/met131.pdf

Bovine genital campylobacteriosis: main features and perspectives for diagnosis and control
Provedor de dados: 65
Autores: Balzan,Cláudia; Ziech,Rosangela Estel; Gressler,Letícia Trevisan; Vargas,Agueda Palmira Castagna de.
ABSTRACT: Bovine genital campylobacteriosis (BGC) is a venereal disease caused by Campylobacter fetus subsp. venerealis. In countries with large cattle herds, such as Brazil, where the use of natural breeding as a reproductive strategy is a common practice, BGC is considered an important cause of reproductive failure and economic losses. In these cases, the bull is the asymptomatic carrier of the bacterium and the infected females can have infertility and even abortions. The techniques for the diagnosis of C. fetus are isolation in culture medium and identification by biochemical tests, immunofluorescence, immunoenzymatic assays and molecular techniques. Disease control is based on vaccination with bacterins. This review described the epidemiology,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campylobacter fetus subsp. venerealis; Infertility; Venereal disease; Beef cattle.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300451

Bovine herpesvirus type 1 in cumulus-oocyte complexes collected from naturally infected cows
Provedor de dados: 86
Autores: Oliveira,Andre Penido; Heinemann,Marcos Bryan; Cortez,Adriana; Nascimento,Paula Maria Pires do; Leite,Romulo Cerqueira; Viana,João Henrique Moreira.
Abstract: The objective of this work was to investigate the presence of bovine herpesvirus type 1 (BoHV-1) in follicular fluid and in cumulus-oocyte complexes (COC) recovered from naturally infected cows but with no clinical signs of the disease. Cows that were seropositive (n=38) or seronegative (n=8, control) to infectious bovine rhinotracheitis were selected after a serum neutralization test in microplates. The presence of the virus was investigated by PCR in COC and in follicular fluid. Viral DNA was not found in any of the samples. The obtained results suggest that serologically positive cows with no clinical signs of the disease offer negligible risk of transmitting BoHV-1 by COC or follicular fluid.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bos indicus; Follicular fluid; Infectious bovine rhinotracheitis virus; Transmission risk; Viral DNA.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000500676

Bovine leptospirosis: most prevalent serogroups in the municipality of novo repartimento - Pará
Provedor de dados: 195
Autores: Guedes, I. B.; Araújo, S. A. A.; Souza, G. O.; Castro, J. F. P.; Souza-Filho, A. F.; Heinemann, M. B.
In cattle, leptospirosis is particularly manifested by reproductive disorders, leading to losses in the production of these animals. Once the disease is present in a herd, control becomes difficult, especially by the adaptation of the bacterium to the animal species and can become a reservoir and/or maintenance host, such as serovars of the Sejroe serogroup for cattle.
Tipo: Info:eu-repo/semantics/article
Ano: 2019
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37931

Bovine mastitis in the metropolitan area of Curitiba: antibiotic resistance and antimicrobial control of the infection
Provedor de dados: 52
Autores: Parada,José Luis; Gonçalves,Dicezar; Soccol,Vanete Tomaz; Lima,Marisa; Soccol,Carlos Ricardo.
A study from cows with mastitis was performed and Staphylococcus aureus was the predominant pathogen in 46.4 % among 153 studied strains from 276 milk samples of infected cows. Antibiotic resistance of 71 S. aureus isolates was determined in order to search resistant strains to antibiotics of clinical interest, as well as to determine their degree of multi-resistance. It was found that 60% of the S. aureus strains presented resistance to β-lactams, but none to oxacillin, teicoplamin or vancomycin. On the other hand, with the aim of reducing the use of current antibiotics and their associated resistance, a new formulation was introduced. The antimicrobial compounds (P22-P32), demonstrated to be effective in 55% of the 76 mastitis cases studied. The use of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mastitis; Staphylococcus aureus; Antibiotic resistance; Infection reduction.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400009

Bovine meat and Bone Meal as an Economically Viable Alternative in Quail Feeding in the Final Phase
Provedor de dados: 89
Autores: Pizzolante,CC; Moraes,JE; Kakimoto,SK; Budiño,FEL; Móri,C; Soares,DF; Saccomani,APO.
ABSTRACT Bovine meat and bone meal (MBM) has been used as a low-cost protein source in corn- and soybean meal-based poultry diets. However, to date, no studies investigating the effect of the dietary inclusion of MBM on the performance of Japanese quails and on egg production costs were found in literature. In this study, 600 Japanese quails in lay were distributed in a completely randomized experimental design consisting of six treatments (replacement levels of soybean meal by MBM:0, 1, 2, 3, 4, and 5%) with five replicates of 20 birds each to investigate if MBM is a viable alternative to maintain or to improve the live and economic performances of these birds. Treatments consisted of a control diet, based on corn and soybean meal, with no inclusion of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative feedstuff; Performance; Costs; Levels; Egg quality.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000500007

Bovine sperm cell motility after incubation in follicular fluid
Provedor de dados: 86
Autores: Vargas Júnior,Sergio Farias; Costa,Vitória Gasperin Guazzelli; Oliveira,Fernando Caetano de; Goularte,Karina Lemos; Haas,Cristina Sangoi; Gasperin,Bernardo Garziera; Lucia Júnior,Thomaz.
Abstract: The objective of this work was to evaluate sperm cell motility after intrafollicular artificial insemination (IFAI) in vivo or after incubation in follicular fluid in vitro. In the in vivo experiment, IFAI was performed, followed by the recovery of follicular content 1 to 4 hours later, in order to assess sperm motility. In the in vitro experiment, spermatozoa from a pool of commercial frozen-thawed semen were evaluated for their kinetics after incubation for 1 or 3 hours, either pure (pool, control group) or in follicular fluid (FF). A low motility of sperm cells was observed in the FF samples, both in vitro and in vivo. In vitro, the main parameters negatively affected in the sperm cells incubated in FF, compared with the control, were: total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Infertility; Insemination; Intrafollicular artificial insemination; Spermatozoa.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000700866

Bovine viral diarrhea diagnostic: immunohistochemistry standardization for routine
Provedor de dados: 45
Autores: Andrade,G.I.; Serra,C.V.; Barbosa-Stancioli,E.F.; Serakides,R.; Lobato,Z.I.P.
The immunohistochemistry standardization for bovine viral diarrhea virus (BVDV) diagnostic was described. The formalin-fixed tissue samples from a heifer with mucosal disease were used as positive control. The validation of the first phase results was performed using samples from an aborted fetus and a calf infected with reference strains of BVDV. The best results were seen using monoclonal antibodies and a commercial kit consisting of labelled streptavidin biotin (LSAB) reagents and the diaminobenzidine (DAB) substrate-chromogen reagent. The immunohistochemistry demonstrated to be an useful method for routine diagnosis for the controll and detection of BVDV infection.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovino; Diarréia bovina a vírus; Imunoistoquímica; Bovine viral diarrhea; Virus; Immunohistochemistry.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000500018

BpuAmI: a novel SacI neoschizomer from Bacillus pumilus discovered in an isolate from Amazon Basin, recognizing 5'-GAG¯CTC-3'
Provedor de dados: 58
Autores: Chies,Jocelei M.; Dias,Ana C. de O.; Maia,Hélio M.M.; Astolfi-Filho,Spartaco.
A strain of Bacillus pumilus was isolated and identified from water samples collected from a small affluent of the Amazon River. Type II restriction endonuclease activity was detected in these bacteria. The enzyme was purified and the molecular weight of the native protein estimated by gel filtration and SDS-PAGE. The optimum pH, temperature and salt requirements were determined. Quality control assays showed the complete absence of "nonspecific nucleases." Restriction cleavage analysis and DNA sequencing of restriction fragments allowed the unequivocal demonstration of 5´GAG&lt;FONT FACE=Symbol&gt;¯&lt;/FONT&gt;CTC3´ as the recognition sequence. This enzyme was named BpuAmI and is apparently a neoschizomer of the prototype restriction endonuclease SacI....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Type II restriction endonuclease; BpuAmI; SacI; Neoschizomers; Bacillus pumilus.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000100018

Brachiaria as a Cover Crop to Improve Phosphorus Use Efficiency in a No-till Oxisol
Provedor de dados: 90
Autores: Janegitz,Moniki Campos; Souza,Elialdo Alves de; Rosolem,Ciro Antonio.
ABSTRACT Oxidic soils are phosphorus drains in soil; hence, P availability is a limiting factor in tropical, weathered Oxidic soils. It has been shown that some brachiarias grown as cover crops may increase soil available P to subsequent crops. The objective of this study was to evaluate soil P cycling and availability, as well as the response of soybean to soluble and natural reactive phosphates as affected by ruzi grass (Urochloa ruziziensis, R. Germ. and C.M. Evrard, Crin) grown as a cover crop in a no-till system. Experimental treatments consisted of the presence or absence of ruzi grass in combination with a control (0.0 P) and soluble and reactive rock phosphate broadcast on the soil surface in the winter (80 kg ha-1 P2O5), plus three rates of P...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Available phosphorus; Phosphorus use efficiency; Cover crops.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100536

Brachiaria brizantha control by using fluazifop-p-butil on Tifton 85 pasture formation
Provedor de dados: 96
Autores: Santos,Márcia Vitória; Ferreira,Francisco Affonso; Freitas,Francisco Cláudio Lopes de; Fonseca,Dilermando Miranda da; Carvalho,Abner José de; Braz,Thiago Gomes dos Santos.
This study was carried out with the aim of assessing the efficacy of the fluazifop-p-butyl herbicide to control Brachiaria brizantha, cultivar Marandu, in the formation of Tifton 85 grazing. Treatments consisted of five doses of fluazifop-p-butyl herbicide (0.0, 62.5, 125.0, 187.5 and 250.0 g ha-1) plus controls with no herbicide, in a completely randomized layout, with four replications. Each plot consisted of a 10-L capacity pot, with two B. brizantha plants and two Tifton 85 plants. The herbicide application was conducted before the tillage of B. brizantha, when they were about 15 cm high. Visual assessments of control of B. brizantha and intoxication of Tifton 85 plants, at 07, 21 and 45 days after application were carried out. Sixty days after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical control; Tolerance; Weed.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200007

Brachiaria decumbens supresses the initial growth of Coffea arabica
Provedor de dados: 63
Autores: Dias,Guilherme Faus da Silva; Alves,Pedro Luís da Costa Aguiar; Dias,Tomás Carneiro de Souza.
Brachiaria decumbens is becoming one the most common weeds growing in young coffee orchards because, besides its fast growth and difficulty of control, new coffee orchards are usually established in pasture areas. In order to verify the effect of B. decumbens plant density on the early growth of coffee (Coffea arabica L. cv. Catuaí Amarelo), a competition experiment was conducted under semi-controlled humidity conditions. Soil collected in a Typic Haplustox was placed in 70 L asbestos cement boxes and one coffee seedling was planted in each box. The B. decumbens seedlings were transplanted to the boxes at the 2-4 leaf stage. Treatments consisted of 0, 4, 8, 12, 16, 20, 24, 36, 48, and 60 weeds m-2. The experimental period started 120 days after...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Weed; Coffee; Competition; Growth suppression.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162004000600003

Brachiaria species affecting soil nitrification
Provedor de dados: 90
Autores: Fernandes,Adalton Mazetti; Andrade,Gabriel José Massoni de; Souza,Emerson de Freitas Cordova de; Rosolem,Ciro Antonio.
Nitrification can lead to substantial losses of the applied N through nitrate leaching and N2O emission. The regulation of nitrification may be a strategy to improve fertilizer N recovery and increase its agronomic efficiency. The objective of this study was to evaluate the inhibiting capacity of nitrification in soil by Brachiaria species. The greenhouse experiment was conducted using pots with 10 dm³ of a Red Latosol sample. The treatments consisted of the cultivation of three forage species (Brachiaria brizantha, B. ruziziensis and B. decumbens) and four n rates (0, 100, 200, and 300 mg/pot), and the control (without plants). In the absence of the forage plants, all N fertilization levels raised the N-NO3- soil levels, as a result of nitrification. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ammonium; Nitrate; Nitrogen.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000500024

Brachymeria podagrica (Fabricius) (Hymenoptera: Chalcididae) as a parasitoid of Chrysomya albiceps (Wiedemann) (Diptera: Calliphoridae): first report in Brazil
Provedor de dados: 45
Autores: Marchiori,C.H.; Pereira,L.A.; Filho,O.M.S.
Este trabalho relata a primeira ocorrência do parasitóide Brachymeria podagrica (Fabricius, 1787) parasitando estádios imaturos de Chrysomya albiceps (Wiedemann) (Diptera: Calliphoridae) no Brasil. Utilizaram-se armadilhas contendo como isca vísceras de galinha. As pupas foram obtidas pelo método de flutuação. Elas foram colocadas individualmente em cápsulas de gelatina e mantidas até a emergência das moscas e/ou dos parasitóides. Foram obtidas 29 pupas de C. albiceps, quatro das quais emergiram parasitóides. A prevalência de parasitismo foi de 13,7%.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Fly; Parasitoid; Biological control; Natural enemy; Brazil.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352002000500019

Bradykinin, insulin, and glycemia responses to exercise performed above and below lactate threshold in individuals with type 2 diabetes
Provedor de dados: 56
Autores: Asano,R.Y.; Browne,R.A.V.; Sales,M.M.; Arsa,G.; Moraes,J.F.V.N.; Coelho-Júnior,H.J.; Moraes,M.R.; Oliveira-Silva,I.; Atlas,S.E.; Lewis,J.E.; Simões,H.G.
The aim of this study was to analyze the acute responses of bradykinin, insulin, and glycemia to exercise performed above and below lactate threshold (LT) in individuals with type 2 diabetes mellitus (T2D). Eleven participants with a diagnosis of T2D randomly underwent three experimental sessions 72 h apart: 1) 20 min of exercise performed at 120% of LT (120%LT), 2) 20 min of exercise performed at 80% of LT (80%LT), and 3) 20 min of control session. Blood glucose was analyzed before, during, and at 45 min post-exercise. Bradykinin and insulin were analyzed before and at 45 min post-exercise. Both exercise sessions elicited a parallel decrease in glucose level during exercise (P≤0.002), with a greater decrease being observed for 120%LT (P=0.005). Glucose...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metabolic disease; Aerobic exercise; Peptide; Insulin resistance.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2017001100607

Bradyrhizobium spp. Strains in Symbiosis with Pigeon Pea cv. Fava-Larga under Greenhouse and Field Conditions
Provedor de dados: 90
Autores: Rufini,Márcia; Oliveira,Dâmiany Pádua; Trochmann,André; Soares,Bruno Lima; Andrade,Messias José Bastos de; Moreira,Fatima Maria de Souza.
ABSTRACT: Optimization of symbiosis between nitrogen-fixing bacteria and legumes has been extensively studied, seeking agricultural sustainability. To evaluate the symbiotic efficiency of nitrogen-fixing bacterial strains belonging to the Bradyrhizobium genus with pigeon pea (Cajanus cajan (L.) Millsp.) cv. Fava-Larga, experiments were conducted in Leonard jars (axenic conditions), pots with soil, and in the field. Ten strains were tested in Leonard jars, and three strains, in addition to BR 29, were selected according to their ability to promote the growth of pigeon pea, for further tests in pots with different soil types (Inceptsol and Oxisol) and in the field (Oxisol). Treatments were compared with strains BR 2003 and BR 2801 (approved as inoculants for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cajanus cajan; Inoculant; Biological nitrogen fixation; Selection.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100432

Brain caspase-3 and intestinal FABP responses in preterm and term rats submitted to birth asphyxia
Provedor de dados: 56
Autores: Figueira,R.L.; Gonçalves,F.L.; Simões,A.L.; Bernardino,C.A.; Lopes,L.S.; Castro e Silva,O.; Sbragia,L.
Neonatal asphyxia can cause irreversible injury of multiple organs resulting in hypoxic-ischemic encephalopathy and necrotizing enterocolitis (NEC). This injury is dependent on time, severity, and gestational age, once the preterm babies need ventilator support. Our aim was to assess the different brain and intestinal effects of ischemia and reperfusion in neonate rats after birth anoxia and mechanical ventilation. Preterm and term neonates were divided into 8 subgroups (n=12/group): 1) preterm control (PTC), 2) preterm ventilated (PTV), 3) preterm asphyxiated (PTA), 4) preterm asphyxiated and ventilated (PTAV), 5) term control (TC), 6) term ventilated (TV), 7) term asphyxiated (TA), and 8) term asphyxiated and ventilated (TAV). We measured body, brain,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neonatal asphyxia; Necrotizing enterocolitis; I-FABP; Caspase-3; Brain injury; Intestinal damage.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000700703

Brain ischemia alters platelet ATP diphosphohydrolase and 5'-nucleotidase activities in naive and preconditioned rats
Provedor de dados: 56
Autores: Frassetto,S.S.; Schetinger,M.R.C.; Schierholt,R.; Webber,A.; Bonan,C.D.; Wyse,A.T.; Dias,R.D.; Netto,C.A.; Sarkis,J.J.F.
The effects of transient forebrain ischemia, reperfusion and ischemic preconditioning on rat blood platelet ATP diphosphohydrolase and 5'-nucleotidase activities were evaluated. Adult Wistar rats were submitted to 2 or 10 min of single ischemic episodes, or to 10 min of ischemia 1 day after a 2-min ischemic episode (ischemic preconditioning) by the four-vessel occlusion method. Rats submitted to single ischemic insults were reperfused for 60 min and for 1, 2, 5, 10 and 30 days after ischemia; preconditioned rats were reperfused for 60 min 1 and 2 days after the long ischemic episode. Brain ischemia (2 or 10 min) inhibited ATP and ADP hydrolysis by platelet ATP diphosphohydrolase. On the other hand, AMP hydrolysis by 5'-nucleotidase was increased after 2,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brain ischemia; Ischemic preconditioning; Rat platelets; ATP diphosphohydrolase; 5'-nucleotidase.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000001100017

Brain Region Specificity of Mitochondrial Biogenesis and Bioenergetics Response to Nrf2 Knockdown: A Comparison Among Hippocampus, Prefrontal Cortex and Amygdala of Male Rat Brain
Provedor de dados: 52
Autores: Khalifeh,Solmaz; Khodagholi,Fariba; Shaerzadeh,Fatemeh; Ghazvini,Hamed; Zarrindast,Mohammad-Reza; Azizi,Vahid.
ABSTRACT Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) has been identified as the well-known coordinator of intracellular antioxidant defense system. Herein, we aimed to evaluate the effects of Nrf2 silencing on mitochondrial biogenesis markers peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), nuclear respiratory factor-1(NRF-1), mitochondrial transcription factor A (TFAM) and cytochrome c as well activities of two enzymes citrate synthase (CS) and malate dehydrogenase (MDH) in three brain regions hippocampus, amygdala, and prefrontal cortex of male Wistar rats. Small interfering RNA (siRNA) targeting Nrf2 was injected in dorsal third ventricle. Next, western blot analysis and biochemical assays were used to evaluation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nrf2; Antioxidant defense system; Citrate synthase; Malate dehydrogenase; PGC1-α; TFAM.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100428

Brain serotonin depletion enhances the sodium appetite induced by sodium depletion or beta-adrenergic stimulation
Provedor de dados: 42
Autores: Lima,Hawlinston R. C.; Cavalcante-Lima,Haerishton R.; Cedraz-Mercez,Pedro L.; Costa-E-Sousa,Ricardo H.; Olivares,Emerson L.; Badauê-Passos-Jr,Daniel; Medeiros,Magda A.; Côrtes,Wellington S.; Reis,Luís C.
We investigate the influence of brain serotonin depletion on the sodium appetite. Rats depleted of serotonin through the systemic administration of p-chlorophenylalanine (300 mg/kg, ip, for 2 days) showed an intense natriorexigenic response induced by sodium depletion (furosemide, 20 mg/kg, sc, 24 h before water and 1.8% NaCl presentation). Intake of 1.8% NaCl was always higher than that observed for the control group (12.9 ± 1.4 and 21.4 ± 3.0 mL vs 5.7 ± 1.2 and 12.7 ± 1.6 mL, 30 and 300 min after water and saline presentation). After 24 h, the natriorexigenic response continued to be significantly higher compared to control (33.6±5.1 vs 21.9±3.6 mL,P &lt;0.05). Fourteen days after p-chlorophenylalanine administration, 1.8% NaCl intake did not differ...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sodium appetite; Brain serotonin depletion; Sodium and water depletion; Isoproterenol; Serotonergic system.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000100008

Branches of Gliricidia sepium used as mulch for weed control in corn
Provedor de dados: 124
Autores: Santos,Luiz Eduardo Barreto dos; Silva,Paulo Sérgio Lima e; Oliveira,Vianney Reinaldo de; Oliveira,Antonia Kennia de.
ABSTRACT Mulching using crop residue reduces the growth of weeds and increases the yield of various crops. The aim of the present study was to evaluate the effects of Gliricidia sepium branches, used as mulch, on weed control, and on grain yield in corn. A randomized block design was used, with split plots and five replications. The cultivars, 30F35H and AG 1051, were grown in the plots, and the following treatments applied in the subplots: no weeding, two weedings, and mulching with 10, 20 or 30 t ha-1 (fresh weight) gliricidia branches. The mulch material was applied between the sowing furrows after sowing the corn. Increasing the amount of gliricidia branches caused a linear reduction in weed growth, and increased growth and yield in the corn. Weed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Number of branches; Corn yield; Weed growth; Hoeings.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000100417

Brassica cover crops for weed control in organic vegetable production
Provedor de dados: 21
Autores: Kristiansen, P.; Sindel, B.M.; Jessop, R.; Cerrai, D.
Cover crops (or green manures) are commonly used by organic vegetable growers for soil fertility building and other benefits including weed control. Brassica crops have been reported to control weeds in subsequent crops, usually attributed to the allelopathic effects of glucosinolates (GSL) in the brassica residues, although the effects are inconsistent. New brassica varieties with high GSL levels (Brassica juncea cv. Fumus and Raphanus sativus cv. Weedcheck) were tested in combination with mechanical weed control and another locally grown forage crop (Lolium multiflorum cv. Conquest) for their effects on weed growth during the pre-crop phase and subsequent weed and lettuce growth during the in-crop phase. The cover crops and bare fallow controlled weeds...
Tipo: Conference paper, poster, etc.
Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2005
URL: http://orgprints.org/14045/1/Kristiansen%2Dbrassica%2Cweed%2CIFOAM%2D05.pdf

Brassica crops resistance to the club-root of crucifers
Provedor de dados: 22
Autores: Araujo, M. A.; Lima Neto, V. da C.; Ruaro, L.; Brondani, G. E.
The club-root caused by Plasmodiophora brassicae Woronin is the most serious disease in brassica and crucifer species, mainly due  to the fast propagation of the pathogen and its survival by using resistance structures. For this reason, the use of resistant cultivars is considered one of the most effective and economical ways to control this disease. This study aimed at examining the resistance to club-root in brassica crops commercialized in the metropolitan region of Curitiba. The experiment was carried out under a totally randomized design, and nineteen cultivars were tested according to the Plasmodiophora brassicae inoculation. Each treatment was composed of ten replicates, with a total of 380 experimental units. At the end of the experiment, incidence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plasmodiophora brassicae; Patologia radicular; Incidência; Severidade.
Ano: 2010
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/4728

Brassica vegetable leaf residues as promising biofumigants for the control of root knot nematode, Meloidogyne incognita infecting cowpea
Provedor de dados: 111
Autores: El-Nagdi, wafaa M.A.; Youssef, Mahmoud M.A.
Abstract:  Under screenhouse conditions , two mashed leaves of plants belonging to the genus Brassica, cabbage (Brassica oleracea var. Capitata L.) and kohlrabi (Brassica caulorapa   L.) were used as pre-and at sowing biofumigants at 20g/pot for managing root knot nematode, Meloidogyne incognita on cowpea (Vigna unguiculata (L.) Walp)compared to metam potassium and metam sodium as chemical biofumigants as well as untreated check. It was found that, in general, there was a positive correlation between the time of the addition of the plant residue (10 and 5 days before sowing and at sowing time) and the percentage final nematode population reduction i.e., the highest percentages final nematode reduction (70.4 and 82.1%) oc­curred when Brassica oleracea and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brassica plants; Mashed leaves; Cowpea; Root knot nematode.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5050

Brassicas limited in weed control
Provedor de dados: 21
Autores: Kristiansen, P.
This article discusses the limitations of using brassica cover crops for weed control. A brief overview of the role of cover crops is provided, followed by a short review of research looking at brassica cover crops.
Tipo: Journal paper
Palavras-chave: Crop combinations and interactions; Weed management.
Ano: 2006
URL: http://orgprints.org/14044/1/14044.pdf

Brassinosteróide e substratos na aclimatização do abacaxizeiro ‘Imperial’ - DOI: 10.4025/actasciagron.v30i3.3512
Provedor de dados: 1
Autores: Catunda, Paulo Henrique Aragão; UENF; Marinho, Cláudia Sales; UENF; Gomes, Mara Menezes de Assis; IST; Carvalho, Almy Junior Cordeiro de; UENF.
O objetivo deste trabalho foi avaliar o efeito da aplicação de diferentes concentrações de um análogo de brassinosteróide (BIOBRAS – 16) e de dois substratos sobre o crescimento de mudas micropropagadas do abacaxizeiro ‘Imperial’. O experimento foi conduzido em DBC, em esquema fatorial 2 x 5 x 4, no qual foram avaliadas cinco concentrações do BIOBRAS - 16 (0; 0,1; 0,3; 0,5 e 1 mg L-1), dois tipos de substratos e quatro épocas de amostragem (60, 90, 120 e 150 dias após transplantio). Os substratos utilizados foram o Plantmax® e outro substrato obtido pela compostagem de uma mistura entre o bagaço-de-cana e torta de filtro (BT). As plântulas foram transplantadas para tubetes cônicos em casa-de-vegetação equipada com nebulizadores intermitentes. As plantas...
Palavras-chave: 5.01.00.00-9 Agronomia Ananas comosus; BIOBRAS-16; Bagaço-de-cana; Torta de filtro; Plantmax®; Regulador de crescimento 5.01.03.00-8 Fitotecnia Ananas comosus; BIOBRAS-16; Sugar-cane bagasse; Filter cake; Plantmax®; Growth regulator.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3512

Brazilian assessment on biodiversity and ecosystem services: summary for policy makers
Provedor de dados: 49
Autores: Joly,Carlos A.; Scarano,Fabio R.; Bustamante,Mercedes; Gadda,Tatiana Maria Cecy; Metzger,Jean Paul Walter; Seixas,Cristiana Simão; Ometto,Jean Pierre HB; Pires,Aliny Patrícia Flauzino; Boesing,Andrea Larissa; Sousa,Francisco Diogo Rocha; Quintão,José Maurício Brandão; Gonçalves,Leandra Regina; Padgurschi,Maíra de Campos Gorgulho; Aquino,Michely Ferreira dos Santos de; Castro,Paula Felício Drummond de; Santos,Isabela Lima dos.
Abstract: Biodiversity and ecosystems are important elements for addressing national and global socioeconomic and environmental crises, since they provide new development opportunities, for example, as source of job and income creation, and reduction in poverty and socioeconomic inequity. Brazilian biological diversity is also expressed in its immense cultural diversity, with a great variety of knowledge holders. These peoples possess vast knowledge on agrobiodiversity, fishing, fire management, natural medicine, among others of commercial, cultural and spiritual value. The main conclusions of this Summary for Police Makers is that land use changes and climate changes have been - and will continue to be throughout this century - the main drivers that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sustainable use; Direct and indirect drivers land use climate change policy instrument global commitments.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400401

Brazilian chicken meat production chain:a 10-year overview
Provedor de dados: 89
Autores: Nääs,IA; Mollo Neto,M; Canuto,SA; Waker,R; Oliveira,DRMS; Vendrametto,O.
Brazil is the world's largest broiler meat exporter. Health control, knowledge and technology, as well as the natural aspects of the country are pointed out as the keys for the success of that product in the market. Brazilian broiler production grew significantly in the last decade; it creates jobs and has a significant social role in Brazilian economy. This study aimed at evaluating the Brazilian broiler meat supply chain from 2000 to 2010 using the social network analysis (SNA). Data from governmental and private sources were organized and analyzed. The focus of this study was the broiler production supply chain segment involving the hatchery, the broiler farm, the feed mill, the processing plant, and the government. The inputs considered were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meat market; Broiler meat supply chain; Social network analysis.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100087

Brazilian spotted fever
Provedor de dados: 195
Autores: Moraes-Filho, Jonas.
Brazilian spotted fever is an infectious disease transmitted by ticks of the genus Amblyomma, having as its main etiological agent the bacterium Rickettsia rickettsii, manifesting through acute febrile condition. The first report about rickettsial disease in Brazil was in 1900, at the Bacteriological Institute of São Paulo, by Dr. Adolfo Lutz. The disease has reemerged and became an important public health problem in Brazil since the 1980s. The number of cases has increased, as well as the expansion of transmission areas, transmission in urban areas, and, in particular, high lethality rates. Rickettsiae are obligate intracellular bacteria predisposed that act as parasites in endothelial cells, which are classically divided in three groups: the typhus...
Tipo: Info:eu-repo/semantics/article
Ano: 2017
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/36765

Brazilian spotted fever: a reemergent zoonosis
Provedor de dados: 80
Autores: Greca,H.; Langoni,H.; Souza,L.C.
Brazilian spotted fever is caused by the bacterium Rickettsia rickettsii, which is the most pathogenic species of the spotted-fever rickettsiae group and is transmitted by the bite of infected ticks. Amblyomma cajennense is the most important tick species involved in the cycle of this zoonosis in Brazil as it presents low host specificity, great number of natural reservoirs and wide geographic distribution. It was first described in the state of São Paulo in 1929 and later in Rio de Janeiro, Minas Gerais and Bahia. The number of cases decreased in the 1940's with the development of new plague control techniques and antibiotics. In the last decades, the number of new cases has increased. The current review aimed at reporting some of the epidemiological and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazilian spotted fever; Rickettsia rickettsii; Amblyomma cajennense.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000100002

Brazilian version of the Berg balance scale
Provedor de dados: 56
Autores: Miyamoto,S.T.; Lombardi Junior,I.; Berg,K.O.; Ramos,L.R.; Natour,J.
The purpose of the present study was to translate and adapt the Berg balance scale, an instrument for functional balance assessment, to Brazilian-Portuguese and to determine the reliability of scores obtained with the Brazilian adaptation. Two persons proficient in English independently translated the original scale into Brazilian-Portuguese and a consensus version was generated. Two translators performed a back translation. Discrepancies were discussed and solved by a panel. Forty patients older than 65 years and 40 therapists were included in the cultural adaptation phase. If more than 15% of therapists or patients reported difficulty in understanding an item, that item was reformulated and reapplied. The final Brazilian version was then tested on 36...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Balance; Outcome assessment; Disability evaluation; Rehabilitation; Geriatric patients; Postural control.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000900017

Breast Cancer Associated Metastasis is Significantly Increased in a Model of Autoimmune Arthritis
Provedor de dados: 17
Autores: Lopamudra  Das Roy; Latha Pathangey; Teresa Tinder; Pinku Mukherjee.
Chronic inflammation is known to play a role in cancer initiation, promotion,and metastasis. However, the mechanism by which inflammation promotes metastasis is still unclear. We evaluated if chronic inflammation induced by autoimmune arthritis may contribute to increased breast cancer-associated metastasis. We report a three-fold increase in lung metastasis and a significant increase in the incidence of bone metastasis in the pro-arthritic mice compared to control mice. The metastatic breast tumors in turn augment the severity of arthritis resulting in a vicious cycle that increases both bone destruction and metastasis. Enhanced neutrophilic and granulocytic infiltration in lungs and bone of the pro-arthritic mice and subsequent increase in circulating...
Tipo: Manuscript
Palavras-chave: Cancer; Immunology.
Ano: 2008
URL: http://precedings.nature.com/documents/2632/version/1

Breeder nutrition and offspring performance
Provedor de dados: 89
Autores: Calini,F; Sirri,F.
Vertical integration in poultry industry strongly emphasizes the importance of cost control at all levels. In the usual broiler production operations, the costs involved with the production of the hatching egg or the day old chick are negligible if seen in the perspective of the cost per kg of live bird. From a research point of view, anyway, the greatest attention is usually given to the performance of broiler breeders, and most of the research in the field is focused on the improvement of their relative performance, mainly in terms of saleable chicks produced per hen, while less attention has been given to the quality of the chick and to the improvement of its growth performances, even if these last parameters have an effective impact on the overall...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler breeder; Progeny; Nutrition.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000200001

Breeding and Domestication of Eastern Oyster (  Crassostrea virginica  ) Lines for Culture in the Mid-Atlantic, Usa: Line Development and Mass Selection for Disease Resistance
Provedor de dados: 5
Autores: Frank-lawale, Anu; Allen, Standish K.; Degremont, Lionel.
A selective breeding program for Crassostrea virginica was established in 1997 as part of an initiative in Virginia to address declining oyster harvests caused by the two oyster pathogens Haplosporidium nelsoni (MSX) and Perkinsus marinus (Dermo). Housed in the Aquaculture Genetics and Breeding Technology Center (ABC), the objective of the program was to develop and disseminate disease-resistant lines that would enable an oyster culture industry. Today, culture of disease-resistant cultivars accounts formore than 90%of oyster production in the state, where 28.1 million half-shell oysters and 2 billion eyed larvae were sold in 2012. Results of our line development program as of 2006 are reported. Eight ABC lines from 3 genetic groups—East Coast (EC),...
Tipo: Text
Palavras-chave: Crassostrea gigas; Oysters; Selective breeding; Disease resistance; Chesapeake Bay; Growth; Genetic improvement; MSX; Dermo.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00188/29950/28395.pdf

Breeding for resilience: a strategy for organic and low-input farming systems?
Provedor de dados: 21
Global change is increasingly affecting agricultural production and threatening food security. Organic and low-input farming systems are less demanding in fossil energy and might thus contribute to moderating global carbon missions. Moreover, under increased uncertainty and variability in environmental conditions, these systems offer solutions for buffering against climatic extremes, disease epidemics, changing nutrient availability, and other stresses that will add to already heterogeneous environmental conditions.  2010 has been designated the Biodiversity Target year by Parties to the Convention on Biological Diversity. Yet, it is clear that biological diversity in agroecosystems, measured as the number and abundance of species as well as genetic...
Tipo: Proceedings
Palavras-chave: Production systems Social aspects Breeding; Genetics and propagation Research methodology and philosophy.
Ano: 2010
URL: http://orgprints.org/18171/1/Breeding_for_resilience%2DBook_of_abstracts.pdf

Breeding of entomopathogenic fungus Lecanicillium spp．by protoplast fusion and potentials of hybrid strains as biological control agents
Provedor de dados: 19
Autores: Aiuchi, Daigo; 相内, 大吾.
岩手大学大学院連合農学研究科
Ano: 2009
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2473

BRIDGING THE GAP BETWEEN OLD AND NEW TECHNOLOGY: CONSIDERATION OF INDIGENOUS KNOWLEDGE IN MAIZE PESTS MANAGEMENT PRACTICES IN NIGERIA
Provedor de dados: 21
Autores: Meludu, Nkiru T.; Adesina, Jimoh B.
Conventional pests management practices are carried out mainly through extensive exposure to chemicals (pesticides) used in agricultural production. The overall ailing effects of these chemical based products to the environment and human health are some of the challenges which appeal to look for alternative farming practices that would minimize the use of pesticides in agricultural production. It is against this background that this study was carried out to determine the perception of the effectiveness of indigenous and organic maize pest management practices among maize farmers in Oyo state in order to bridge the gap between the old and new technology and determine the relationship that will enhance the development of ecological organic agriculture (EAO)....
Tipo: Conference paper, poster, etc.
Palavras-chave: "Organics" in general; Farming Systems; Technology transfer; Consumer issues.
Ano: 2014
URL: http://orgprints.org/23136/1/23136_MM.pdf

Bringing Biophysical Models into the Economic Laboratory: An Experimental Analysis of Sediment Trading in Australia
Provedor de dados: 31
Autores: Tisdell,   John G.
Experimental economics has emerged and matured as a formal method for questioning and stress testing economic theory and assumptions concerning individual behavior. More recently, experimental methods have been used successfully in an economic laboratory to test alternative environmental policy options. The data underpinning these experiments is often stylized or hypothetical in nature. Ecologists and experimental economics have much to gain by exploring ways to underpin economic experiments with data generated from biophysical models in terms of external validity and salient features of the issue at hand. The study makes a contribution by demonstrating how underpinning experiments with regionally modeled biophysical data may give insights which would not...
Tipo: Conference Paper or Presentation
Palavras-chave: Sediment trading; EMSS; Natural resource markets; Experimentation; Environmental Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/25631

Bringing competition to urban water supply
Provedor de dados: 31
Autores: Sibly,   Hugh; Tooth,   Richard.
This paper proposes a market-based reform that would introduce competition into the provision of urban water. This proposal calls for a decoupling of infrastructure control and ownership of water whereby the property rights to water would be transferred to private hands. The proposal involves periodically allocation (e.g. by auction) of existing water stock held in urban catchments to virtual suppliers who then compete in providing bulk water. This change when coupled with effective third party access and retail competition would lead to a competitive market for the provision of urban water. The approach aims to address concerns over inefficient pricing and infrastructure provision under the current arrangement.
Tipo: Article
Palavras-chave: Urban water; Water utilities; Efficient water pricing; Market power mitigation; Introducing competition; Community/Rural/Urban Development.
Ano: 2008
URL: http://purl.umn.edu/118541

Broadening the perspective on ocean privatizations: an interdisciplinary social science enquiry
Provedor de dados: 5
Autores: Schlüter, Achim; Bavinck, Maarten; Hadjimichael, Maria; Partelow, Stefan; Said, Alicia; Ertör, Irmak.
Privatization of the ocean, in the sense of defining more exclusive property rights, is taking place in increasingly diverse ways. Because of more intensive and diversified use patterns and increasing sustainability challenges, it is likely that this process will continue into the future. We argue that the nature of privatization varies from one oceanic domain to another. We differentiate four ideal-typical domains: (1) resources, (2) space, (3) governance control, and (4) knowledge, and nine criteria for the assessment of privatization. We apply those criteria to a selection of examples from the realm of marine life (from micro-organisms to fish) to highlight similarities and differences and establish foundations for broader analysis. We aim hereby to...
Tipo: Text
Palavras-chave: Ocean; Privatization; Property rights; Sustainability.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00648/76050/76994.pdf

Broca-dos-ramos-do-cupuaçu: monitoramento, identificação e estratégias de controle.
Provedor de dados: 14
Autores: SANTOS, R. S.; OLIVEIRA, T. K. de; MACEDO, T. F.; OLIVEIRA, G. B. da S.
Plantios de cupuaçu em monocultivos ou como componentes de sistemas agroflorestais (SAFs) são amplamente disseminados na Amazônia brasileira. Em ambas as formas de plantio há ocorrência de insetos associados à cultura, destacando-se os pertencentes à ordem Coleoptera e Lepidoptera, conhecidos popularmente por besouros e mariposas, respectivamente. Espécies pertencentes a essas ordens são broqueadores de frutos e/ou de madeira, causando prejuízos consideráveis, dependendo dos seus níveis populacionais. Dentre os lepidópteros considerados pragas do cupuaçuzeiro, Magulacra nigripennata Dognin (Lepidoptera: Cossidae), conhecida popularmente como "broca-do-ramo-terminal", "lagarta-flamenguista" ou "broca-dos-ramos", é uma das espécies de relevância econômica.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Magulacra nigripennata; Plagas de plantas; Control de plagas; Identificación de plagas; Monitoreo de plagas; Métodos de control; Praga de Planta; Cupuaçu; Theobroma Grandiflorum; Broca; Identificação; Controle Químico; Plant pests; Pest control; Pest identification; Pest monitoring; Control methods.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132469

Broiler chicken PSE (Pale, Soft, Exudative) meat and water release during chicken carcass thawing and brazilian legislation
Provedor de dados: 52
Autores: Kato,Talita; Barbosa,Claudia Freitas; Ida,Elza Iouko; Soares,Adriana Lourenço; Shimokomaki,Massami; Pedrao,Mayka Reghiany.
The objective of this work was to investigate the relationship between poultry PSE meat and water loss of frozen chicken carcass in two experiments. The first experiment was carried out in commercial abattoir. Poultry carcass were classified as PSE meat (n=59) (pH &lt;5.8) and control samples (n=55) (pH &amp;gt;5.8). Water absorption and drip test were performed according to the Brazilian legislation methodologies. The second experiment was carried out with commercial whole five brands frozen carcasses purchased from the local supermarkets (n=30) and analyzed for pH, water holding capacity (WHC) and drip test. PSE poultry meats absorbed 3.59% of water during the processing similar to the control samples; however, released 0.38% more water during thawing of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drip loss; Water absorption; Water holding capacity.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000600015

Broiler Surface Temperature and Behavioral Response under Two Different Light Sources
Provedor de dados: 89
Autores: Araújo,FE; Garcia,RG; Nääs,IA; Lima,NDS; Silva,RBTR; Caldara,FR.
Light is an important environmental variable for the regulation and control of broiler behavior. Some light sources may also add heat to the rearing environment, and indirectly affect the heat exchange between the birds and the environment. This study aimed at investigation the surface temperature and behavioral response of broilers reared in an environment with monochromatic light emitted diode (LED). Broilers were reared inside commercial dark houses under two treatments: fluorescent or LED light sources. Bird surface temperature and behavior was monitoredfrom the first day of grow-out. The houses were virtually divided in four quadrants, and the variables were monitored in the geometric center of each quadrant. Surface temperature results were mapped,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Monochromatic light; LED; Welfare; Broiler activity.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200219

Broilers reduce the apple sawfly population in organic apple growing
Provedor de dados: 21
Autores: Lindhard Pedersen, Hanne; Olsen, A.; Korsgaard, Maren; Pedersen, Birgitte.
In organic production in Denmark, no pesticides are allowed. The need for alternative pest control is therefore large. Apple sawfly (Hoplocampa testudinea) cause big crop losses in apples. Sawflies infest fruitlets and cause these to drop prematurely after which the pests pupate in the topsoil.    Combined production of hens and fruit trees is a subject often discussed in organic fruit production in Denmark. The feeding poultry may reduce the population of pests, which stay in the soil as a part of their life circle. Yet, very little research has been carried out on this type of production system.
Tipo: Journal paper
Palavras-chave: Soil.
Ano: 2004
URL: http://orgprints.org/10124/1/10124.pdf

Bromatological composition and dry matter digestibility of millet cultivars subjected to nitrogen doses
Provedor de dados: 45
Autores: Buso,W.H.D.; França,A.F.S.; Miyagi,E.S.
The bromatological composition and in vitro dry matter digestibility of millet cultivars were assessed for different nitrogen doses and two sowing seasons in the Ceres municipality of Goiás state, Brazil. The treatments consisted of three millet cultivars (ADR-7010, ADR-500 and BRS-1501), four nitrogen (N) doses (0, 50, 100 and 200kg ha-1 of N) and two sowing seasons. Three replicates and a randomised block design with a 3 x 4 x 2 factorial scheme were used. Two cuttings were performed in each season when plants reached an average height of 0.70 cm. No significant interactions were observed between or among cultivars for N doses and dry matter (DM), crude protein (CP), neutral detergent fibre (NDF) and acid detergent fibre (ADF) contents. The DM, CP, NDF...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fibres; Forage; Dry matter; Pennisetum glaucum; Protein; Urea.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000300887

Bromeliads production in greenhouses associated to different shading screens
Provedor de dados: 75
Autores: Holcman,Ester; Sentelhas,Paulo Cesar.
Bromeliads production in greenhouses is highly influenced by microclimate, which affects plants growth and development. Based on that, this study aimed to evaluate the influence of shading screens of different colors on microclimatic variables and Aechmea fasciata bromeliad growth in a greenhouse covered by transparent low-density polyethylene. The experiment had five treatments, with screens of different colors, inside a plastic greenhouse: thermo-reflective (T1); control without screen (T2); red (T3); blue (T4); and black (T5) screens, all of them with 70% of shading. From the 60 plants arranged in each one of the treatments 24 were evaluated, which were obtained randomly. The statistical design was completely randomized for the biometric variables. An...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aechmea fasciata; Plant growth; Solar radiation; Air temperature.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000300008

Brotação e desenvolvimento inicial de rizomas de Ariá (Calathea allouia (Aubl.) Lindl.)
Provedor de dados: 36
Autores: Bueno,Carlos Roberto; Weigel,Peter.
Summary Rhizomes of aria (Calathea allouia) normally have low viability or slow shoot Iniciation. Various treatments were used to accelerate water penetration in order to stimulate iniciation. The rhizomes were immersed in a hot water (48°C) for 10. 20 or 30 minutes or cold water (ambient temperature) for 24. 48, 96 or 168 hours and compared with a control. The results show a significant increase in percentage of shoot iniciation when the rhizomes were immersed in hot water foi 10 minutes. Orther treatments did not stimulate iniciation and in some cases negative effects were observed. However, leaf number, 90 days after planting, did not vary significatly between treatments.
Tipo: Info:eu-repo/semantics/other
Ano: 1981
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671981000200024

BRS GUARAÇÁ: porta-enxerto resistente ao nematoide-das-galhas da goiabeira: programa 29: Nordeste/Vale do Jequitinhonha.
Provedor de dados: 14
Esta semana, o Prosa Rural traz como tema a cultivar BRS Guaraçá, um porta-enxerto de goiabeira, resistente a nematóide. Essa cultivar é considerada a primeira tecnologia eficiente para o controle do nematoide-das-galhas, o principal desafio da cultura da goiaba no país. A cultivar BRS Guaraçá é uma planta híbrida, que mistura características de goiabeira e de araçazeiro, para ser utilizada como porta-enxerto. O convidado do programa para falar sobre o assunto é o pesquisador Carlos Antônio Fernandes dos Santos, da Embrapa Semiárido.
Tipo: Prosa Rural (INFOTECA-E)
Palavras-chave: Planta híbrida; Goiaba; Nematóide; Porta Enxerto; Araçá; Tecnologia; Guavas; Nematode control; Rootstocks; Technology.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1124116

'BRS Tospodoro': a high lycopene processing tomato cultivar adapted to organic cropping systems and with multiple resistance to pathogens
Provedor de dados: 75
Autores: Giordano,Leonardo de B; Boiteux,Leonardo S; Quezado-Duval,Alice M; Fonseca,Maria Esther de N; Resende,Francisco V; Reis,Ailton; González,Matías; Nascimento,Warley Marcos; Mendonça,José L.
'BRS Tospodoro' is a high lycopene tomato cultivar, which combines multiple disease resistance genes and desirable processing traits. This cultivar was found to be suitable for both conventional and organic crop systems. 'BRS Tospodoro' was obtained via backcross breeding using 'Viradoro' as recurrent parent and the inbred line 'CNPH 1306' as the donor of the Pto gene (resistance to Pseudomonas syringae pv. tomato race 0). 'BRS Tospodoro' has the Mi1-2 gene that controls resistance to root-knot nematodes (Meloidogyne incognita, M. javanica, and M. arenaria) as well as tolerance to populations of the aphid Macrosiphum euphorbiae (vector of Potyvirus species), and to whiteflies (Bemisia tabaci). 'BRS Tospodoro' has also the Sw-5b gene, which controls...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum lycopersicum; Tomato; Breeding; Organic cropping.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362010000200019

Brucellosis outbreak in a commercial kennel: a case report
Provedor de dados: 195
Autores: Silva, David Attuy Vey da; Diniz, Jaqueline Assumpção; Muner, Kerstin; Keid, Lara Borges; Batinga, Maria Cryskely Agra; Soares, Rodrigo Martins.
Brucella canis is a facultative intracellular bacterium responsible for brucellosis in dogs, a chronic and zoonotic infectious disease endemic in Brazil, which promotes reproductive failure and involvement of the lymphoid and articular systems. The infection has been commonly described in breeding kennels, being difficult to treat and control. This study reports an outbreak of brucellosis in a commercial kennel in Guarulhos, SP, Brazil, comprised of 32 dogs (four males and 28 females) from five different breeds, where episodes of abortion had been happening since October 2015. Brucellosis was considered a potential cause of reproductive impairment only a year and a half after the first episode. Anamnesis, clinical examination and serological and...
Tipo: Info:eu-repo/semantics/article
Ano: 2018
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37818

Brucelose e tuberculose bovina: epidemiologia, controle e diagnóstico.
Provedor de dados: 14
Autores: ALMEIDA, R. F. C. de; SOARES, C. O.; ARAÚJO, F. R. de.
Cap. 1: Brucelose bovina: epidemiologia e controle. Cap. 2: Brucelose bovina: diagnóstico. Cap. 3: Tuberculose bovina: epidemiologia e controle. Cap. 4: Tiberculose bovina: diagnóstico.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Controle; Diagnosis; Control.; Bovino; Brucelose; Diagnostico; Doença Animal; Epidemiologia; Sanidade Animal; Tuberculose.; Animal health; Animal diseases; Epidemiology; Brucellosis; Cattle; Tuberculosis.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325789

Brucelose: uma ameaça para a pecuária em áreas de fronteira agrícola da Amazônia.
Provedor de dados: 14
Autores: LAU, H. D.
bitstream/item/34707/1/RecBas-33.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Controle de doenca; Brasil; Brucelosis; Symptoms.; Bovino; Brucelose; Sintoma.; Amazonia; Cattle; Disease control.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375238

Brüterei: Einfluss von Licht im Brutschrank auf das Verhalten von Junghennen
Provedor de dados: 21
Definition of the problem:  Imitated natural light conditions during the artificial incubation may influence pullets' behaviour in being adapted to the diurnal rhythm.   Methodology:  To study these effects, eggs were set in a commercial incubator either in the dark control or under full spectrum light tubes (Philips TL95, 36 watt). To imitate the light changes by a clucking hen, the eggs were exposed to light for twelve hours a day with a light-intensity of 20 lux. After six hours there was a step-up in light intensity to 1000 lux for 20 minutes. After the incubation period, at day 18 of incubation, all eggs were transferred to the hatching compartments. After hatching, the chickens were reared in paired groups under Swiss organic standards. Each group,...
Tipo: Project description
Palavras-chave: Poultry.
Ano: 2023
URL: http://orgprints.org/6477/1/fibl%2Dprojekt%2Dtierzucht%2Dtierhaltung%2Dbrutschrank.pdf

BT CORN AND INSECT RESISTANCE:  AN ECONOMIC ASSESSMENT OF REFUGES
Provedor de dados: 31
Autores: Hurley,   Terrance M.; Babcock,   Bruce A.; Hellmich,   Richard L.
Genetically engineered crops offer farmers a new option for controlling pests.  The high efficacy of these pesticidal crops, combined with the potential for widespread adoption, has raised concerns that pest resistance may prematurely diminish their value.  In response to these concerns, the Environmental Protection Agency requires resistance management plans.  Current resistance management plans rely on a high-dose refuge strategy.  This analysis extends the current framework for evaluating high-dose refuge strategies to include a measure of agricultural productivity and conventional pesticide use.  The economic tradeoff relative to agricultural productivity, conventional pesticide use, and pest resistance is assessed when Bt corn is planted to control...
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 2001
URL: http://purl.umn.edu/31156

Bt protein rhizosecreted from transgenic maize does not accumulate in soil
Provedor de dados: 69
Autores: Margarit,Ezequiel; Reggiardo,Martín I; Permingeat,Hugo R.
The persistence of CryIAb protein rhizosecreted in soil is important in the assessment of its environmental risk. Here we report that CryIAb protein from transgenic maize does not accumulate at high levels in soils. Levels of CryIAb protein rhizosecreted by three maize transgenic events (BT11, MON810 and 176) were studied in hydroponic cultures and found only in the MON810 and BT11 events but not in event 176 or control plants. Under field conditions, the cryIAb gene and a basal level of CryIAb protein was detected in soils from plots cultivated with transgenic and non-transgenic maize, possibly from Bacillus thuringiensis present in the soils.
Tipo: Journal article
Palavras-chave: CryIAb gene; CryIAb protein; ELISA; Genetically modified organisms; PCR; Zea mays (L.).
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000200004

Bubalinos: manejo sanitário.
Provedor de dados: 14
Autores: LAU, H. D.
bitstream/item/34628/1/RecBas-10.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Bubalino; Controle; Buffalo; Management; Disease; Control; Verminosis; Parasite; Insecticide.; Bubalus Bubalis; Doença; Inseticida; Manejo; Parasito; Verminose.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/381215

Buchweizen: eine Futterpflanze für Milchkühe?
Provedor de dados: 21
Autores: Amelchanka, Sergej; Brand, Daniela; Kälber, Tasja; Kreuzer, Michael; Leiber, Florian.
Buckwheat (Fagopyrum esculentum) has a high ecological value due to the long and  intensive flowering as well as its favorable impact on soil fertility. However, in Europe  demand for buckwheat kernels as food is low. Therefore, the question arises whether  cultivation of this plant could be promoted by using it as animal feed. In the current  preliminary experiment, the extent to which buckwheat, offered in different forms, is  consumed by dairy cows was tested in conjunction with potential effects on milk yield.  Three groups of lactating cows were fed a silage-concentrate mixture, which either  contained 3 kg DM/d buckwheat kernel flour (n=4), or 2.5 kg DM/d buckwheat total  plant silage (n=3) or no buckwheat compound (control; n=4). After 4 days of...
Tipo: Conference paper, poster, etc.
Palavras-chave: Feeding and growth.
Ano: 2009
URL: http://orgprints.org/14368/1/Amelchanka_14368.pdf

Bufotenine, a tryptophan-derived alkaloid, suppresses the symptoms and increases the survival rate of rabies-infected mice: the development of a pharmacological approach for rabies treatment
Provedor de dados: 80
Autores: Vigerelli,Hugo; Sciani,Juliana M.; Pereira,Patricia M. C.; Lavezo,Aline A.; Silva,Andrea C. R.; Collaço,Rita C. O.; Rocha,Thalita; Bueno,Thais C.; Pimenta,Daniel C.
Abstract  Background: Between 40,000-70,000 people die yearly of rabies, an incurable disease. Besides post-bite vaccination, no treatment is available for it.  Methods: First, virus dilution for antiviral effects in mice was determined. Then, animals were treated as follows: control (NaCl 250 µL/animal/day); bufotenine (0.63, 1.05 and 2.1 mg in 250 µL of NaCl/animal/day); rabies (10-6,82CVS dilution); and test (10-6,82 CVS dilution and bufotenine, in the above-mentioned doses). Animals were observed daily for 21 days or until the 3rd stage of rabies infection. Twitch-tension and liposome studies were applied to understand the possible interaction of bufotenine with receptors, particularly acetylcholine.  Results: Bufotenine was able to increase the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rabies; Rabies therapy; Bufotenine.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992020000100303

Building Criminal Capital Behind Bars: Social Learning in Juvenile Corrections
Provedor de dados: 31
Autores: Bayer,   Patrick; Pintoff,   Randi; Pozen,   David E.
This paper analyzes the influence that juvenile offenders serving time in the same correctional facility have on each other’s subsequent criminal behavior. The analysis is based on data on over 8,000 individuals serving time in 169 juvenile correctional facilities during a two-year period in Florida. These data provide a complete record of past crimes, facility assignments, and arrests and adjudications in the year following release for each individual. To control for the non-random assignment of juveniles to facilities, we include facility fixed effects in the analysis. This ensures that the impact of peers on recidivism is identified using only the variation in the length of time that any two individuals serving a sentence in the same facility happen to...
Tipo: Working or Discussion Paper
Palavras-chave: Social learning; Peer effects; Social interactions; Recidivism; Juvenile crime; Human capital accumulation; Labor and Human Capital; H0; J0; J2; K1.
Ano: 2003
URL: http://purl.umn.edu/28511

Building Food Communities: Farm Management Schemes within Organic PGS; Survey and Analysis in Soc Son, Hanoi, Vietnam
Provedor de dados: 21
Autores: Whitney, Cory W.; Từ Tuyết, Nhung.
Demand is rising for organic vegetables in Vietnam. This poses many challenges for small-scale rural farmers who supply the Hanoi markets. Strict third party certification is well beyond their reach, both in terms of cost and technical ability. Organic participatory guarantee systems (PGS) offer an alternative through peer-review and social control, supporting appropriate farming practices, local market development, and social cohesion (Zanasi and Venturi 2008). PGS is based on civil society (Fonseca et. al, 2008), and ensures agro-biodiversity conservation and livelihood security by recognizing the merits of traditional practices and customs (Darlong 2008). PGSs are context specific and the systems vary greatly, but all propose collective efforts for...
Tipo: Conference paper, poster, etc.
Palavras-chave: Farming Systems Education; Extension and communication.
Ano: 2014
URL: http://orgprints.org/32560/1/Whitney%20%26%20Tu%CC%9B%CC%80%20Tuye%CC%82%CC%81t%202014.pdf

BULLFROG HEMOGRAM UNDER MANAGEMENT STRESS
Provedor de dados: 64
Autores: Teixeira,Patrícia Coelho; Vicentini,Irene Bastos Franceschini; Ferreira,Claudia Maris; França,Fernanda Menezes; Bordon,Isabela Cristina Antunes da Costa; Ranzani-Paiva,Maria José Tavares.
Stress is one of the major obstacles in frog culture and can be caused by factors such as inappropriate farming systems; inadequate management among other situations. The objective of the present study was to assess the hemogram, erythrogram and leukogram of bullfrogs (L. catesbeianus) when exposed to stress caused by different types of management: density and handling (manipulation), developed in the laboratory and repeated in the field for the appropriate comparisons in a experimental period of 30 days. The density experiment was conducted with four treatments: 70 animals m-2 (D70); 100 animals m-2 (D100), Control; 150 animals m-2 (D150) and 200 animals m-2 (D200), with 10, 14, 21 and 28 animals/box in the laboratory, respectively. Each treatment was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: L. catesbeianus; Density; Handling; Physiological response; Hematology.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000200154

Bundesprogramm Ökologischer Landbau (BÖL): Cluster Lebensmittel: 1) Lebensmittel und Lebensmittelverarbeitung, 2) Dienstleistungem im Bereich Lebensmittel
Provedor de dados: 21
The Federal Organic Farming Scheme (FOFS): This scheme is a temporary funding source (2002 – 2007/2008) especially to support the whole organic farming sector (incl. research) in Germany.  In the summer of 2001, the Federal Ministry of Consumer Protection, Food and Agriculture commissioned a project team comprised of representatives from associations and science and headed by the Federal Agricultural Research Centre to develop a proposal for a package of measures to foster organic farming in Germany. A hearing of representatives from trade and industry, associations, consultancy, science and administration laid the foundation for the team's work. Based on this work, the Federal Minister of Consumer Protection, Food and Agriculture Renate Künast decided to...
Tipo: Research Programme description
Palavras-chave: Food security; Food quality and human health Food systems Markets and trade Processing; Packaging and transportation.
Ano: 2023

Business Process Modelling in Demand‐Driven Agri‐Food Supply Chains
Provedor de dados: 31
Autores: Verdouw,   Cor N.; Beulens,   Adriaan J.M.; Trienekens,   Jacques H.; Wolfert,   Sjaak.
Agri‐food companies increasingly participate in demand‐driven supply chains that are able to adapt flexibly to changes in the marketplace. The objective of this presentation is to discuss a process modelling framework, which enhances the interoperability and agility of information systems as required in such dynamic supply chains. The designed framework consists of two parts: an object system definition and a modelling toolbox. The object system definition provides a conceptual definition of business process in demand‐driven supply chains from a systems perspective. It includes an application of the Viable Systems Model of Stafford Beer to supply chains, and classifications of business processes, control systems and coordination mechanisms. The modelling...
Tipo: Conference Paper or Presentation
Palavras-chave: Agribusiness; Agricultural and Food Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Production Economics; Research Methods/ Statistical Methods.
Ano: 2010
URL: http://purl.umn.edu/100477

Búsqueda de control biológico de Phytophthora capsici en chile mediante alta diversidad microbiana, considerando al patosistema como sistema adaptativo complejo.
Provedor de dados: 32
Autores: Molina Gayosso, Eduardo.
Los sistemas adaptativos complejos son abiertos, en el sentido de la termodinámica, y no son lineales, lo que significa que no son frecuentes las relaciones causa-efecto y que sus parámetros comúnmente cambian por lo que son impredecibles, por lo tanto, sus problemas no pueden ser resueltos como si se tratara de sistemas lineales. Sin embargo, es común el análisis lineal en las ciencias de la vida, lo que ha llevado, en el caso del control de enfermedades en las plantas, a controles lineales cuyas consecuencias son, por ejemplo, la anarquía biológica, el uso de resistencia vertical y la protección vegetal a través de químicos. El limitado éxito de las soluciones lineales en el control biológico de las enfermedades con origen en el suelo se debe,...
Palavras-chave: Control biológico; Phytophthora capsici; Teoría de sistemas; CM-334; Teoría de la complejidad; Biological control; Systems theory; Complexity theory; Doctorado; Fitopatología.
Ano: 2010
URL: http://hdl.handle.net/10521/129

Búsqueda de control biológico de Phytophthora capsici en chile mediante alta diversidad microbiana, considerando al patosistema como sistema adaptativo complejo.
Provedor de dados: 32
Autores: Molina Gayosso, Eduardo.
Los sistemas adaptativos complejos son abiertos, en el sentido de la termodinámica, y no son lineales, lo que significa que no son frecuentes las relaciones causa-efecto y que sus parámetros comúnmente cambian por lo que son impredecibles, por lo tanto, sus problemas no pueden ser resueltos como si se tratara de sistemas lineales. Sin embargo, es común el análisis lineal en las ciencias de la vida, lo que ha llevado, en el caso del control de enfermedades en las plantas, a controles lineales cuyas consecuencias son, por ejemplo, la anarquía biológica, el uso de resistencia vertical y la protección vegetal a través de químicos. El limitado éxito de las soluciones lineales en el control biológico de las enfermedades con origen en el suelo se debe,...
Palavras-chave: Control biológico; Phytophthora capsici; Teoría de sistemas; CM-334; Teoría de la complejidad; Biological control; Systems theory; Complexity theory; Doctorado; Fitopatología.
Ano: 2010
URL: http://hdl.handle.net/10521/129

Búsqueda de plantas con propiedades insecticidas para el control de Sitophilus zeamais en maíz almacenado
Provedor de dados: 86
Autores: Silva,Gonzalo; Orrego,Odette; Hepp,Ruperto; Tapia,Maritza.
Se evaluaron, bajo condiciones de laboratorio, 23 plantas en polvo para el control de Sitophilus zeamais Mots. en maíz almacenado. En una primera etapa se evaluaron todos los polvos a una concentración del 1,0% (p/p). Posteriormente aquellos polvos con mejores resultados fueron probados en concentraciones del 0,1, 0,5, 1,0 y 2,0% en granos de maíz infestados con los insectos a las 24 horas, 30, 60 y 90 días. Se evaluaron 63 tratamientos distribuidos en un diseño experimental completamente al azar y el ensayo se repitió tres veces. En la primera etapa, la mayor mortalidad de insectos se obtuvo con Chenopodium ambrosioides L. y Peumus boldus Mol. con 65,8% y 99,3%, respectivamente. Estos tratamientos también propiciaron la menor emergencia de adultos,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecticidas vegetales; Cereales; Gorgojo del maíz.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000100002

Busseola fusca (Fuller), the African Maize Stalk Borer:
Provedor de dados: 30
Autores: K.M.
Palavras-chave: Diapause; Pheromones; Sorghum; Biological interaction; Animal developmental stages; Maize; Cultural control; Millets; Yield losses.
Ano: 1992
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3981

Buttonweed emergence as affected by seed burial depth and straw on the soil surface
Provedor de dados: 63
Autores: Martins,Bianca Assis Barbosa; Christoffoleti,Pedro Jacob.
Knowledge of the effects of seed burial depth and the presence of straw on the soil surface on weed seedling emergence provides useful information for the development of weed management tactics. Buttonweed (Borreria densiflora DC.) is a troublesome weed that occurs in large infestations in soybean and sugarcane crops from north-central Brazil. This study investigated buttonweed emergence at different seed burial depths and straw amounts present on the soil surface. The experiment was conducted in greenhouse conditions, under a factorial design between four seed burial depths and four amounts of surface straw. Percent seedling emergence and fresh biomass (g) were evaluated at twenty-five days after installation (DAI). Greater buttonweed emergence occurred...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vassourinha-de-botão; Weed seedbank; No-tillage; Weed culture control.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000600489

Bycatch in the purse seine tuna fisheries in the western Indian Ocean.
Provedor de dados: 20
Autores: Romanov, E.V.
The yield of associated and dependent species taken as bycatch by the purse seine tuna fishery from the Indian Ocean pelagic ecosystem is estimated from data collected by scientific observers aboard Soviet purse seiners in the Western Indian Ocean (WIO), 1986-1992. A total of 494 sets on free swimming schools, whale shark associated schools, whale associated schools, and log associated schools were analyzed. More than 40 fish species and other marine animals were registered. Among them only two species, yellowfin and skipjack tunas, are target species. Average levels of non-tuna bycatch equal 0.518 t per set, 27.2 t for 1,000 t of target species. By the author’s estimates, the annual catch of yellowfin and skipjack tunas in 1990-1995 of the total...
Tipo: Proceedings Paper
Palavras-chave: Tuna fisheries By-catch Purse seining ISW; Indian Ocean.
Ano: 1998
URL: http://hdl.handle.net/1834/45

Bygbladplet, biologi og bekæmpelse
Provedor de dados: 21
Autores: Jørgensen, L.N.; Pinnschmidt, H.; Nielsen, B.J.; Nielsen, G.C.
Bygbladplet udvikler med års mellemrum kraftige angreb i modtagelige sorter, som kan give op til 30-40% udbyttetab. - Svampen er udsædsbåren, ligesom den smitter via halmrester, vinterbyg og spildkornsplanter af byg. - Udsædsbåren bygbladplet kan medføre kraftige bladangreb senere på sæsonen. - Kornpartier med over 15% angrebne kerner bør ikke bruges ubejdset som udsæd. - Bygbladplet fremmes af fugtige forhold, men kan godt udvikle sig alene som følge af dug om natten. Optimale temperaturer for svampen er 15-25° C. - Især i vårbyg varierer sorternes modtagelighed over for bygbladplet. Valg af sorter med god resistens er vigtig for at mindske risikoen for angreb. - Sorternes modtagelighed kan også variere fra mark til mark, fordi der findes forskellige...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection.
Ano: 2004
URL: http://orgprints.org/3903/1/3903.pdf

Byrsonima crassifolia seedlings growth on ground basalt rock
Provedor de dados: 109
Autores: Ferreira-Melo,Valdinar; Keiko-Welter,Marina; Alves-Chagas,Edvan; Pereira-Uchôa,Sandra Cátia; da Silva-Siqueira,Raphael Henrique.
Abstract Ground basalt rock may represent a labile reservoir of nutrients, providing a low-cost, nutrient-rich substrate for seedling formation and plant growth. The study aimed to evaluate the development of a native plant murici [Byrsonima crassifolia (L.) H.B.K.] seedlings using two different application rates of ground basalt rock with two particles sizes. The experiment was performed in a greenhouse, in which treatments were arranged in a random block design with five replications in a factorial scheme (2 x 5 + 1), with five doses of finely ground basaltic rock (0.42; 1.04; 2.08; 4.17 and 8.33 g kg-1), two grain sizes (G1Ø &lt; 0.05 and G2 Ø &lt; 0.10 mm mesh), and a treatment with soil without rock powder addition (the control 0.0 g kg-1 of rock...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative fertilizers; Native fruit; Byrsonima crassifolia rocks for crops.
Ano: 2021
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000100007

Ca2+ entry, efflux and release in smooth muscle
Provedor de dados: 48
Autores: MATTHEW,A; SHMYGOL,A; WRAY,SUSAN.
Control of smooth muscle is vital for health. The major route to contraction is a rise in intracellular [Ca2+], determined by the entry and efflux of Ca2+ and release and re-uptake into the sarcoplasmic reticulum (SR). We review these processes in myometrium, to better understand excitation-contraction coupling and develop strategies for preventing problematic labours. The main mechanism of elevating [Ca2+] is voltage-gated L-type channels, due to pacemaker activity, which can be modulated by agonists. The rise of [Ca2+] produces Ca-calmodulin and activates MLCK. This phosphorylates myosin and force results. Without Ca2+ entry uterine contraction fails. The Na/Ca exchanger (NCX) and plasma membrane Ca-ATPase (PMCA) remove Ca2+, with contributions of 30%...
Tipo: Journal article
Palavras-chave: Uterus; SR; Signalling; Ca-ATPase.
Ano: 2004
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000400017

Cablegation: I. Cable Controlled Plugs in Perforated Supply Pipes for Automatic Furrow Irrigation
Provedor de dados: 18
Autores: Kemper, W.D.; Heinemann, W.H.; Kincaid, D.C.; Worstell, R.V.
Tipo: Article
Palavras-chave: Irrigation control; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1981
URL: http://eprints.nwisrl.ars.usda.gov/380/1/474.pdf

Cablegation VI. The Waterbrake Controller
Provedor de dados: 18
Autores: Kincaid, D.C.
Tipo: Article
Palavras-chave: Irrigation control; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1985
URL: http://eprints.nwisrl.ars.usda.gov/448/1/566.pdf

Cadmium effect on the association of jackbean (Canavalia ensiformis) and arbuscular mycorrhizal fungi
Provedor de dados: 63
Autores: Andrade,Sara Adrián López de; Jorge,Renato Atílio; Silveira,Adriana Parada Dias da.
The effect of cadmium (Cd) on mycorrhizal association and on shoot and root Cd concentration was investigated in jackbean plants under hydroponic conditions. The treatments consisted of the inoculation of three different species of arbuscular mycorrhizal fungi (AMF), Glomus etunicatum, G. intraradices and G. macrocarpum, and a non-inoculated control, two Cd (0 and 5 µmol L-1) and two P (1 and 10 mg L-1) levels in the nutrient solution. Mycorrhizal colonization, length of AMF extraradical mycelium, guaiacol peroxidase activity in roots, plant growth and root and shoot Cd and P concentrations were determined. Mycorrhizal status did not promote jackbean growth but in most of the cases mycorrhization increased root and shoot Cd concentrations. Cd ions were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Peroxidase; Cd accumulation; Extraradical mycelium; Phytoremediation; Hydroponics.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000400013

Cadmium pathways in an exploited intertidal ecosystem with chronic cadmium inputs (Marennes-Oleron, Atlantic coast, France)
Provedor de dados: 5
Autores: Pigeot, J; Miramand, P; Guyot, T; Sauriau, Pierre-guy; Fichet, D; Le Moine, Olivier; Huet, V.
The Marennes-Oleron Bay is subject to chronic pollution by cadmium (Cd) from the Gironde watershed. An ecosystem approach was used to study the fate of cadmium in the different biological compartments. The median Cd concentration was 0.4 mu g g(-1) dry weight for the 63 benthic species measured. When combined with the respective biomasses for the different species studied, we estimated that 7 kg of Cd is partitioned into the soft tissues of the benthic species in the bay. The majority of this cadmium was distributed between primary producers, mainly microphytobenthos (40 %), and suspension-feeders, mainly oysters (40 %). All other benthic species measured were associated with negligible masses of Cd. Two trophic levels contained 98 % of the Cd: 3 kg was...
Tipo: Text
Palavras-chave: Marennes Oleron Bay; Trophic food web; Bioaccumulation; Cadmium; Macrofauna; Microphytobenthos; Macrophytes.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-3615.pdf

Cadmium toxicity on seed germination and seedling growth of wheat Triticum aestivum
Provedor de dados: 3
Autores: Guilherme, Maria de Fátima Souza; Oliveira, Habyhabanne Maia; Silva, Edevaldo da.
Cadmium toxicity in seed germination and seedling growth of wheat (Triticum aestivum, var. IAC-370) is assessed. The ecotoxicological effects of six experimental concentrations of cadmium (0.03; 0.06; 0.12; 0.6; 1.2; 2.4; 4.8 mM), and control were evaluated. All assays were performed in quadruplicates with 25 seeds per replication in Petri dishes. Responses for toxic effect comprised the variables germination percentage, index of velocity of germination (IVG), length of aerial section and root of the seedlings, green and dry mass of the seedlings. Results showed that T. aestivum seeds exposed to cadmium decreased their normal germination percentage as from 0.03 mM concentration, with a 31% reduction of germination percentage and a 20% decrease in IVG....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 1.06.04.07-3; 2.03.03.01-7 ecotoxicology; Metal; Contamination. 1.06.00.00-0; 2.03.00.00-0.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/28148

Caenorhabditis elegans as an indicator of toxicity of Bacillus thuringiensis strains to Meloidogyne incognita race 3
Provedor de dados: 65
Autores: Montalvão,Sandro Coelho Linhares; Castro,Marcelo Tavares de; Soares,Carlos Marcelo Silveira; Blum,Luiz Eduardo Bassay; Monnerat,Rose Gomes.
ABSTRACT:  The cotton plant (Gossypium hirsutum) is affected by several diseases of economic importance, among them root-knot nematode (Meloidogyne incognita races 3 and 4). Methods to control this disease include the application of nematicides, solarization, deep plowing, crop rotation and use of antagonistic microorganisms. Among species of Bacillus, there are strains that act as bioregulators and antagonists of several pathogens. Tests to identify these strains are hampered by the difficulty of obtaining large populations of the pathogen and by the time of execution of the in vivo tests that should be conducted for about 90 days. The objective of this research was to compare the toxicity of B. thuringiensis strains to two nematodes, M. incognita and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biocontrol; Phytonematode; Root-knot nematode; Rhizobacteria.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700151

Cage and field assessments of Beauveria bassiana-based Mycoinsecticides for Myzus persicae Sulzer (Hemiptera: Aphididae) control in cabbage
Provedor de dados: 82
Autores: Michereff Filho,M; Oliveira,SOD; de Liz,RS; Faria,M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Entomopathogenic fungus; Formulation; Microbial control.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000400010

Cage evaluation of augmentative biological control of Thrips palmi with Wollastoniella rotunda in winter greenhouses
Provedor de dados: 19
Autores: Nakashima, Yoshitaka; Uefune, Masayoshi; Tagashira, Eiko; Maeda, Seiko; Shima, Katsuya; Nagai, Kazuya; Hirose, Yoshimi; Takagi, Masami.
Cage trials of an anthocorid predator, Wollastoniella rotunda Yasunaga et Miyamoto, as a biological control agent of Thrips palmi Karny were conducted in Fukuoka, Japan, under winter greenhouse production conditions. Females of W. rotunda were released on caged eggplants, and placed in two greenhouses on 27 October. The development, population growth, and effectiveness of W. rotunda were observed until early March. Results from the cage trials showed that W. rotunda successfully developed, reproduced, and suppressed T. palmi populations under the conditions found in winter greenhouses. During the experiment, one full generation and a second generation of adult predators occurred. The T. palmi population which was exposed to predators remained at a low...
Palavras-chave: Reproductive diapause; Photoperiod; Development; Winter; Wollastoniella rotunda; Orius; Biological control; Thrips palmi; Solanum melongena; Dicyphus tamaninii; Frankliniella occidentalis; Piocoris varius.
Ano: 2004
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/808

Cairo Evaluation Clinic: Thoughts on Randomized Trials for Evaluation of Development
Provedor de dados: 31
Autores: Karlan,   Dean S.
We were asked to discuss specific methodological approaches to evaluating three hypothetical interventions. This article uses this forum to discuss three misperceptions about randomized trials.  First, nobody argues that randomized trials are appropriate in all settings, and for all questions.  Everyone agrees that asking the right question is the highest priority.  Second, the decision about what to measure and how to measure it, i.e., through qualitative or participatory methods versus quantitative survey or administrative data methods, is independent of the decision about whether to conduct a randomized trial.  Third, randomized trials can be used to evaluate complex and dynamic processes, not just simple and static interventions.  Evaluators should aim...
Tipo: Working or Discussion Paper
Palavras-chave: Program evaluation; Randomized control trial; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Financial Economics; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Institutional and Behavioral Economics; Labor and Human Capital; Public Economics; Research Methods/ Statistical Methods; B41; O12; H43; J08; H54; D73; D12.
Ano: 2009
URL: http://purl.umn.edu/51913

Calcário, Potássio, Fosfato e Silício na produtividade do solo - DOI: 10.4025/actasciagron.v28i4.759
Provedor de dados: 1
Autores: Carneiro, Cristine Elizabeth Alvarenga; UEL; Fioretto, Roberto Antunes; UEL; Fonseca, Inês Cristina Batista; UEL; Carneiro, Geraldo Estevam de Souza; EMBRAPA.
Visando melhorar a disponibilidade do fósforo no solo foi realizado um estudo de sorção de fósforo, utilizando CALPOT (calcário + potássio) e silício como promotores. Em laboratório, aplicou-se ao solo os elementos P e Si em doses crescentes e CALPOT com dose calculada para se atingir um índice de saturação no solo equivalente a 50% de Ca, 10% de Mg e 3% de K. Em casa de vegetação, o solo foi incubado com sete tratamentos, sendo: 1. Testemunha; 2. CALPOT + P + Si; 3. CALPOT + P; 4. CALPOT + Si; 5. Si + P; 6. Calcário; 7. CALPOT. Os cátions básicos foram aplicados na mesma dose estabelecida para laboratório, o P aplicado foi de 50 mg kg-1 e Si foi duas vezes a dose de P. O tratamento completo em condição laboratorial diminuiu a adsorção de fósforo para o...
Palavras-chave: 5.00.00.00-4    Ciências Agrárias calagem; Equilíbrio químico; Adsorção; Silício; Fósforo 5.00.00.00-4    Ciências Agrárias.
Ano: 2006
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/759

CÁLCIDOS PARASITOIDES (HYMENOPTERA, CHALCIDOIDEA) ASOCIADOS A COCCOIDEA (HEMIPTERA) EN COCOTERO (Cocos nucifera L.) (ARECACEAE)
Provedor de dados: 100
Autores: Ceballos,Margarita; Baños,Heykel Leyanis; Chico,R; Sánchez,Adayakny.
Se estudió el complejo de cálcidos parasitoides asociados a especies de cóccidos en cocotero (Cocos nucifera L.), con el objetivo de ampliar las posibilidades de uso y conservación de enemigos naturales en áreas de cultivo de frutales en agroecosistemas urbanos. Se realizaron muestreos en áreas seleccionadas de las provincias La Habana y Mayabeque entre febrero y mayo del año 2009. Se efectuaron 8 muestreos, se seleccionaron 6 plantas por muestreo y se extrajeron cinco foliolos por planta. Las muestras se trasladaron al Laboratorio de Entomología del Centro Nacional de Sanidad Agropecuaria (CENSA), donde se revisaron y los cóccidos parasitados se aislaron en placas Petri hasta la emergencia de los parasitoides adultos, los cuales fueron montados en láminas...
Tipo: Journal article
Palavras-chave: Cocos nucifera; Cóccidos; Cálcidos parasitoides; Control biológico; Agroecosistemas urbanos.
Ano: 2011
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1010-27522011000100009

Calcium and cell death signaling in neurodegeneration and aging
Provedor de dados: 42
Autores: Smaili,Soraya; Hirata,Hanako; Ureshino,Rodrigo; Monteforte,Priscila T.; Morales,Ana P.; Muler,Mari L.; Terashima,Juliana; Oseki,Karen; Rosenstock,Tatiana R.; Lopes,Guiomar S.; Bincoletto,Claudia.
Transient increase in cytosolic (Cac2+) and mitochondrial Ca2+ (Ca m2+) are essential elements in the control of many physiological processes. However, sustained increases in Ca c2+ and Ca m2+ may contribute to oxidative stress and cell death. Several events are related to the increase in Ca m2+, including regulation and activation of a number of Ca2+ dependent enzymes, such as phospholipases, proteases and nucleases. Mitochondria and endoplasmic reticulum (ER) play pivotal roles in the maintenance of intracellular Ca2+ homeostasis and regulation of cell death. Several lines of evidence have shown that, in the presence of some apoptotic stimuli, the activation of mitochondrial processes maylead to the release of cytochrome c followed by the activation of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calcium; Apoptosis; Bax; Mitochondria; Endoplasmic reticulum; Neurodegeneration and aging.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000300011