Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 43
Primeira ... 123 ... Última
Imagem não selecionada

Imprime registro no formato completo
A method for multiple sequential analyses of macrophage functions using a small single cell sample BJMBR
Nascimento,F.R.F.; Rodríguez,D.; Gomes,E.; Fernvik,E.C.; Russo,M..
Microbial pathogens such as bacillus Calmette-Guérin (BCG) induce the activation of macrophages. Activated macrophages can be characterized by the increased production of reactive oxygen and nitrogen metabolites, generated via NADPH oxidase and inducible nitric oxide synthase, respectively, and by the increased expression of major histocompatibility complex class II molecules (MHC II). Multiple microassays have been developed to measure these parameters. Usually each assay requires 2-5 x 10(5) cells per well. In some experimental conditions the number of cells is the limiting factor for the phenotypic characterization of macrophages. Here we describe a method whereby this limitation can be circumvented. Using a single 96-well microassay and a very small...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Macrophages; Nitric oxide; Hydrogen peroxide; MHC II; Method.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000900012
Imagem não selecionada

Imprime registro no formato completo
A method for the deliberate and deliberative selection of policy instrument mixes for climate change adaptation Ecology and Society
Mees, Heleen L. P.; Copernicus Institute of Sustainable Development, Utrecht University; h.l.p.mees@uu.nl; Dijk, Justin; IVM and Department of Spatial Economics, VU University Amsterdam; justin.dijk@vu.nl; van Soest, Daan; Department of Economics and Tilburg Sustainability Center, Tilburg University; d.p.vansoest@tilburguniversity.edu; Driessen, Peter P. J.; Copernicus Institute of Sustainable Development, Utrecht University; p.driessen@uu.nl; van Rijswick, Marleen H. F. M. W.; Utrecht Center for Water, Oceans and Sustainability Law, Utrecht University; H.vanRijswick@uu.nl; Runhaar, Hens; Copernicus Institute of Sustainable Development, Utrecht University; H.A.C.Runhaar@uu.nl.
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptation to climate change; Local governance; Method; Policy instrument selection.
Ano: 2014
Imagem não selecionada

Imprime registro no formato completo
A portable bio-amplifier for electric fish research: design and construction Neotropical Ichthyology
Wells,Jonathan K.; Crampton,William G. R..
The weak electric organ discharges (EODs) of gymnotiform knife fishes can be readily amplified with a wideband amplifier connected to submerged electrodes. The output from such an amplifier can then be monitored with audio speakers or digitized for subsequent analysis. Commercially available devices are expensive and usually require mains electrical power. Here we provide design notes and instructions for the construction and calibration of a cheap, portable, battery-powered, AC-coupled wideband bio-amplifier. This device was designed to allow electric fishes to be located in the field, and also to permit the relatively noise-free acquisition of EOD waveforms from specimens held in temporary captivity. This contribution is intended to encourage students of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Communication; Electric Organ Discharge; Gymnotiformes; Knife fishes; Method.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000200018
Imagem não selecionada

Imprime registro no formato completo
A possible examination method for observing agriculture AgEcon
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
Imagem não selecionada

Imprime registro no formato completo
A radiographic method to estimate lung volume and its use in small mammals Biol. Res.
CANALS,MAURICIO; OLIVARES,RICARDO; ROSENMANN,Mario.
In this paper we develop a method to estimate lung volume using chest x-rays of small mammals. We applied this method to assess the lung volume of several rodents. We showed that a good estimator of the lung volume is: V*L = 0.496 · V RX ≈ 1/2·V RX , where V RX is a measurement obtained from the x-ray that represents the volume of a rectangular box containing the lungs and mediastinum organs. The proposed formula may be interpreted as the volume of an ellipsoid formed by both lungs joined at their bases. When that relationship was used to estimate lung volume, values similar to those expected from allometric relationship were found in four rodents. In two others, M. musculus and R. norvegicus, lung volume was similar to reported data, although...
Tipo: Journal article Palavras-chave: Lung volume; X-ray; Method; Rodents.
Ano: 2005 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602005000100006
Imagem não selecionada

Imprime registro no formato completo
A study on vegetative propagation of pyrethrum (Chrysanthemum cinerariaeforium) by tissue culture method Thai Agricultural
Mongkolsook, Y.; Phansidri, S..
Palavras-chave: Vegetative; Propagation; Tissue; Culture; Method.
Ano: 1998 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5001
Imagem não selecionada

Imprime registro no formato completo
Aggregate stability by the "high energy moisture characteristic" method in an oxisol under differentiated management Rev. Bras. Ciênc. Solo
Silva,Érika Andressa da; Oliveira,Geraldo César de; Silva,Bruno Montoani; Carducci,Carla Eloize; Avanzi,Junior Cesar; Serafim,Milson Evaldo.
Studies testing the High Energy Moisture Characteristic (HEMC) technique in tropical soils are still incipient. By this method, the effects of different management systems can be evaluated. This study investigated the aggregation state of an Oxisol under coffee with Brachiaria between crop rows and surface-applied gypsum rates using HEMC. Soil in an experimental area in the Upper São Francisco region, Minas Gerais, was studied at depths of 0.05 and 0.20 m in coffee rows. The treatments consisted of 0, 7, and 28 Mg ha-1 of agricultural gypsum rates distributed on the soil surface of the coffee rows, between which Brachiaria was grown and periodically cut, and compared with a treatment without Brachiaria between coffee rows and no gypsum application. To...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aggregation; Coffee production; Management systems; Method.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000500028
Imagem não selecionada

Imprime registro no formato completo
Alguns modelos de pequena irrigacao utilizados no Nordeste. Repositório Alice
SILVA, A. de S.; PORTO, E. R..
Apresenta algumas tecnicas que o CPATSA vem desenvolvendo, como sejam: aproveitamento da agua do escoamento superficial, exploracao de vazantes (acudes, rios, lagos) e utilizacao de metodos simples de irrigacao, e que visam dotar as propriedades rurais de uma infra-estrutura capaz de torna-las resistentes aos efeitos das estiagens prolongadas.
Tipo: Artigo de periódico Palavras-chave: Uso; Nordeste; Method; Management; Use; Northeast; Água; Irrigação; Manejo; Método; Tecnologia; Solo; Irrigation; Technology; Soil; Water.
Ano: 1981 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/133230
Imagem não selecionada

Imprime registro no formato completo
Analysis of rhythmic variance - ANORVA. A new simple method for detecting rhythms in biological time series Biol. Res.
Celec,Peter.
Cyclic variations of variables are ubiquitous in biomedical science. A number of methods for detecting rhythms have been developed, but they are often difficult to interpret. A simple procedure for detecting cyclic variations in biological time series and quantification of their probability is presented here. Analysis of rhythmic variance (ANORVA) is based on the premise that the variance in groups of data from rhythmic variables is low when a time distance of one period exists between the data entries. A detailed stepwise calculation is presented including data entry and preparation, variance calculating, and difference testing. An example for the application of the procedure is provided, and a real dataset of the number of papers published per day in...
Tipo: Journal article Palavras-chave: Chronobiology; Time series; Method; ANORVA; Analysis of rhythmic variance; Circaseptan; Cycle; Rhyth.
Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000500007
Imagem não selecionada

Imprime registro no formato completo
Avaliação dos métodos de determinação da necessidade de calcário em solos de cerrado. Infoteca-e
SOUSA, D. M. G. de; MIRANDA, L. N. de; LOBATO, E..
Parâmetros determindos pela análise de terra e cálculo da sautração de bases. Métodos para cálculo da necessidade de calcário (N.C.) com base na análise do solo; Comparação das alternativas para determinação da necessidade de calcário.
Tipo: Circular Técnica (INFOTECA-E) Palavras-chave: Correction; Method; Soil evaluation.; Calcário; Cerrado; Método; Solo.; Brazil..
Ano: 1990 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/982607
Imagem não selecionada

Imprime registro no formato completo
Compensation Method and Rational Standard of Arable Land Expropriation AgEcon
Xue, Mingchuan.
This paper discusses the problems in determining the compensational money of arable land expropriation by Income Capitalization Method and Market Comparative Method during the process of arable land expropriation. It also introduces the value composition of arable land in China. Taking Chongqing City as an example, the irrationality of compensation standard in current arable land expropriation is analyzed. Result shows that the Income Capitalization Method is rational in determining the compensational money, but the current compensation standard should be further improved.
Tipo: Thesis or Dissertation Palavras-chave: Land exploration compensation; Method; Standard; Calculation; China; Land Economics/Use; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/53519
Imagem não selecionada

Imprime registro no formato completo
Construction of bacterial artificial chromosome (BAC) libraries of banana (Musa acuminata and Musa balbisiana). Repositório Alice
PIFFANELLI, P.; VILARINHOS, A. D.; SAFAR, J.; SABAU, X.; DOLEZEL, J..
Introduction. This protocol applies to the characterization of genome structure and evolution of M. acuminata and M. balbisiana genomes; construction of physical maps around markers of interest and QTLs; comparative genomic studies with other monocot species; and study of banana streak virus (BSV) integration patterns in banana nuclear genomes. The principle, key advantages, starting plant material, time required and expected results are presented. Materials and methods. This part describes the required materials, and the protocols for isolation and lysis of banana nuclei; high-molecular-weight (HMW) DNA Hind III digestion and pulsed-field gel electrophoresis (PFGE) analysis; large-scale HMW DNA Hind III digestion and ligation to the pINDIGOBAC-5 vector;...
Tipo: Artigo de periódico Palavras-chave: Method; Genetic marker; Genetic map; DNA; Musa sp; Electrophoresis.
Ano: 2008 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/655566
Imagem não selecionada

Imprime registro no formato completo
Conversão de capoeira alta da Amazônia em povoamento de produção madeireira: o método do "recru" e espécies promissoras. Infoteca-e
YARED, J. A. G.; CARPANEZZI, A. A..
bitstream/item/30793/1/CPATU-BP25.pdf
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Freijo; Exploração; Método do recru; Floresta Nacional do Tapajós; Belterra; Santarém; Pará; Brasil; Brazilian walnut; Explootation; Specie; Cust; Method; Crab tree; Mahogany.; Andiroba; Custo; Espécie; Mão-de-Obra; Mogno; Morototó; Tatajuba.; Amazonia; Labor force..
Ano: 1981 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/379775
Imagem não selecionada

Imprime registro no formato completo
Correlation between antioxidant activity and coffee beverage quality by Electron Spin Resonance Spectroscopic Ciência e Agrotecnologia
Barbosa,Jeam Haroldo Oliveira; Luna,Jorge Antonio Gómez; Kinoshita,Angela Mitie Otta; Baffa Filho,Oswaldo.
Brazil is the largest producer of coffee in the world and coffee prices are directly linked to grain quality. In this work, the antioxidant activity of coffee was related to its quality through Electron Spin Resonance Spectroscopy (ESR), as an attempt to establish a non-subjective method to classify the grain quality. For that purpose, the IC50 and temporal monitoring of its non-oxidized fraction were determined for three bean qualities: Soft (High), Hard (Medium) and Rio (Low). Methanolic solution of 2,2-difenil-1-picril-hidrazila (DPPH), that has a stable radical and a JEOL FA-200 (X-Band) spectrometer were used for these tests. The temporal monitoring of reaction between radical and coffee was performed. The rate of reduced or of antioxidated radicals...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Classify; Method; IC50.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000600002
Imagem não selecionada

Imprime registro no formato completo
Design and construction of an Electric Fish Finder Neotropical Ichthyology
Crampton,William G. R.; Wells,Jonathan K.; Smyth,Charles; Walz,Steven A..
We provide notes on the design and construction of an Electric Fish Finder - a portable differential amplifier for detecting the electrostatic fields of gymnotiform knifefishes. The device can be adapted to locate electric fishes in any kind of aquatic environment. It is rugged, water resistant, and powered by alkaline batteries. This contribution is part of a series of technical papers designed to encourage students of neotropical ichthyology to explore the ecology, systematics, and electric signaling of gymnotiform fishes.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Electric Organ Discharge; Gymnotiformes; Knifefishes; Method.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300022
Imagem não selecionada

Imprime registro no formato completo
Determination of ametryn herbicide by bioassay and gas chromatography-mass spectrometry in analysis of residues in drinking water. Repositório Alice
QUEIROZ, R. H. C.; LANCHOTE, V. L.; BONATO, P. S.; TOZZATO, E.; CARVALHO, D. de; GOMES, M. A.; CERDEIRA, A. L..
A simple, rapid, and quantitative bioassay method was compared to a gas chromotography/mass spectrometry (GC/MS) procedure for the analysis of ametryn in surface and groundwater. This method was based on the activity of ametryn in inhibiting the growth of the primary root and shoot of germinating lettuce, Lactuca sativa L. seed. The procedure was sensitive to 0.01 ug/l and was applicable from this concentration up to 0.6 ug/l. Initial surface sterilization of the seed selection of pregerminated seed of certain root lengths, and special equipment are not necessary. So, we concluded that the sensitivity of the bioassay method is compatible with the chromatographic method (GC-MS). However, the study of the correlation between methods suggests that the...
Tipo: Artigo de periódico Palavras-chave: Persistance; Beneficial effects; Contamination; Water samples; Method; Persistent; Movement; Watershed; Environment; Herbicides; Leaching; Monitoring; Toxicity.
Ano: 1999 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/13134
Imagem não selecionada

Imprime registro no formato completo
Determination of N-nitrosamines and N-nitrosables substances in rubber teats and sothers by GC-TEA BABT
Vieira,Eleno Rodrigues; Pierozan,Nilso José; Lovison,Viviane.
N-Nitrosamines are receiving special attention because they present high mutagenic and carcinogenic potential. They can be found in several areas. In rubber, for example, they can be found in Nipples and Pacifiers. Spiegelhalder and Pressumann, have observed that N-Nitrosamines present in nipples and pacifiers could easily migrate to artificial saliva. They have also observed that a considerable amount of N-Nitrosamines precursors, such as nitrosable amines, could migrate to saliva, increasing the possibility of N-Nitrosamines formation into the stomach of living beings. In 80's, Holland, Germany and FDA-U.S.A. have established volatile N-Nitrosamines limit levels. In 2002, in Brazil, limit levels came through Resolução RDC n° 221 of ANVISA. This...
Tipo: Info:eu-repo/semantics/article Palavras-chave: N-Nitrosamines; Method; Nipples and pacifiers.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000200012
Imagem não selecionada

Imprime registro no formato completo
Eliciting Mental Models: a Comparison of Interview Procedures in the Context of Natural Resource Management Ecology and Society
Jones, Natalie A; University of Queensland; n.jones3@uq.edu.au; Ross, Helen; University of Queensland; Helen.Ross@uq.edu.au; Lynam, Timothy; Reflecting Society; tim.lynam@internode.on.net; Perez, Pascal; University of Wollongong; pascal@uow.edu.au.
The sustainable management of natural resources largely depends on people’s conceptions of environmental systems and how they function. The mental model construct provides an appropriate means to explore the cognitive dimension of people’s interactions with such systems. Mental models are cognitive representations of external reality that people use as the basis for acting with and within the world around them. We aimed to improve the application of the mental model construct to the field of natural resource management, with an emphasis on creek, i.e., stream, systems, by exploring how certain elicitation procedures may affect the mental models expressed. One of the initial hurdles that must be overcome is to work out how to effectively...
Tipo: Peer-Reviewed Reports Palavras-chave: Drawing; Elicitation; Interview; Mental model; Method; Natural resource management; Oral; Transect.
Ano: 2014
Imagem não selecionada

Imprime registro no formato completo
Graphical method studies adaptability and stability of cultivars. Repositório Alice
NUNES, J. A. R.; RAMALHO, M. A. P.; ABREU, Â. de F. B..
Tipo: Artigo de periódico Palavras-chave: Bean; Gráfico; Cultivo; Adaptabilidade; Estabilidade; Graphic; Method; Adaptability; Stability.; Feijão; Método; Phaseolus Vulgaris.; Cultivars..
Ano: 2005 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/211529
Imagem não selecionada

Imprime registro no formato completo
Illumina sequencing and assessment of new cost-efficient protocol for metagenomic-DNA extraction from environmental water samples BJM
Hassan,Mariam; Essam,Tamer; Megahed,Salwa.
Abstract In this study, the development and assessment of a modified, efficient, and cost-efficient protocol for mDNA (metagenomic DNA) extraction from contaminated water samples was attempted. The efficiency of the developed protocol was investigated in comparison to a well-established commercial kit (Epicentre, Metagenomic DNA Isolation Kit for Water). The comparison was in terms of degree of shearing, yield, purity, duration, suitability for polymerase chain reaction and next-generation sequencing in addition to the quality of next-generation sequencing data. The DNA yield obtained from the developed protocol was 2.6 folds higher than that of the commercial kit. No significant difference in the alpha (Observed species, Chao1, Simpson and PD whole tree)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioinformatics; Method; Microbiome; Next-generation sequencing; QIIME.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500001
Registros recuperados: 43
Primeira ... 123 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional