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3D Dense Reconstruction of Plant or Tree Canopy Based on Stereo Vision CIGR Journal
Ni, Zhijiang; Burks, Thomas F..
Three dimensional (3D) reconstruction of the plant or tree canopy is an important step in order to measure canopy geometry, such as, height, width, volume, and leaf cover area. In this research, binocular stereo vision was used to recover the 3D information of the canopy. A revised camera calibration method was provided to calibrate the cameras in world coordinate system. Only two images were used to realize a dense reconstruction. These two images were firstly rectified to make sure the corresponding feature points in the left and right images were on the same horizontal line. An efficient large scale stereo matching (ELAS) algorithm was used to find the disparity map. The plant or tree canopy was finally reconstructed based on these calibrated camera...
Tipo: Info:eu-repo/semantics/article
Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4358
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3D front-face fluorescence spectroscopy for characterization of extra virgin olive oil and olive oil according to the spectral pattern CIGR Journal
Lleó, Lourdes; Hernández-Sánchez, Natalia; Ammari, Faten; Roger, Jean-Michel.
3D front-face fluorescence spectroscopy and principal component analysis (PCA) were used to differentiate between Extra Virgin Olive (EVOO) and Olive Oil (OO). The results show that 3D front-face fluorescence could be an effective tool to characterize EVOO and OO. Fourteen samples of olive oils were acquired directly from producers and from retail markets and their 3D fluorescence spectra were measured and analyzed. The first principal component of the PCA model retained the most important variability as a combination of freshness due to the presence of antioxidant compounds and chlorophyll; and of oxidation stage due to the presence of oxidation products. Olive oil samples presented different spectral pattern providing different scores for EVOO and OO in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Food quality fluorescence spectroscopy; Olive oil; Quality assessment; Authentication.
Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3699
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40Ar/39Ar ages (600-570 Ma) of the Serra do Azeite transtensional shear zone: evidence for syncontractional extension in the Cajati area, southern Ribeira belt Anais da ABC (AABC)
Machado,Rômulo; Dehler,Nolan M.; Vasconcelos,Paulo.
This paper presents 40Ar/39Ar ages of the rocks from the Serra do Azeite transtensional shear zone in the southern part of the Ribeira belt, between the States of São Paulo and Paraná, and also discusses the regional correlations and the tectonic implications for other parts of the belt. The geochronological data suggest that transtensional deformation was active between 600 and 580 Ma (hornblende and muscovite apparent ages, respectively). This time span is considerably older than previous proposals for the period of activity of these structures (520-480 Ma) in the northern segment of this belt and in the Araçuaí belt. Kinematic analysis of the dated mylonites shows extensional structures with top-down movement to ESE compatible with structures found in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Syncontractional extension; 40Ar/39Ar ages; Ribeira belt.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000400011
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40Ar/39Ar geochronology at the Instituto de Geociências, USP: instrumentation, analytical procedures, and calibration Anais da ABC (AABC)
VASCONCELOS,PAULO M.; ONOE,ARTUR T.; KAWASHITA,KOJI; SOARES,ADALBERTO J.; TEIXEIRA,WILSON.
Laser heating 40Ar/39Ar geochronology provides high analytical precision and accuracy, mum-scale spatial resolution, and statistically significant data sets for the study of geological and planetary processes. A newly commissioned 40Ar/39Ar laboratory at CPGeo/USP, São Paulo, Brazil, equips the Brazilian scientific community with a new powerful tool applicable to the study of geological and cosmochemical processes. Detailed information about laboratory layout, environmental conditions, and instrumentation provides the necessary parameters for the evaluation of the CPGeo/USP 40Ar/39Ar suitability to a diverse range of applications. Details about analytical procedures, including mineral separation, irradiation at the IPEN/CNEN reactor at USP, and mass...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Geochronology; 40Ar/39Ar method; Irradiation; Calibration.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000200008
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40K, 226Ra AND 228Ra SERIES IN BOVINE AND POULTRY FEED AND IN DICALCIUM PHOSPHATE (DCP) SAMPLES BY GAMMA-RAY SPECTROMETRY BABT
Luz Filho,Isaias Venancio da; Scheibel,Viviane; Appoloni,Carlos Roberto.
The aim of this study is to determine the amounts of radionuclides' activity present in samples of feed for young and adult chicken and feed for dairy and beef cattle, as well as in dicalcium phosphate (DCP) (CaHPO4), used as a nutritional supplement for animal feed. Radioactivity in these samples is due to the presence of the 238U and 232Th radioactive series, as well as their daughter. In addition, as it is for environmental samples, the activity of 40K should be an important source of radioactivity in all analyzed samples. Gamma rays were measured using a standard spectroscopy system, with a high-resolution HPGe detector. Measured activities in feed samples ranged from 0.23 to 1.51 Bq.kg-1, 0.67 to 4.21 Bq.kg-1, 0.29 to 1.63 Bq.kg-1 and 236 to 402...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gamma Ray Spectrometry; Natural radioactivity; Animal Feed; Dicalcium phosphate (DCP); Phosphate fertilizers.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100506
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4-Nerolidylcatechol induces autophagy in human glioblastoma cells BJPS
Massaro,Renato Ramos; Brohem,Carla Abdo; Almeida,Rebeca Leite de; Rivelli,Diogo Pineda; Miyake,Juliano Andreoli; Colquhoun,Alison; Barros,Silvia Berlanga de Moraes; Maria-Engler,Silvya Stuchi.
ABSTRACT Gliomas account for the majority of primary malignant brain tumors and present invasive behavior into adjacent healthy tissue. While 4-NC had previously shown to induce apoptotic cell death in a melanoma model, for the glioma model described in this paper 4-NC is cytotoxic for the cells with the induction of the autophagic pathway. Trypan blue exclusion assay showed that 4-NC was cytotoxic in a dose-dependent manner for A172 and T98G cell lines. IC10 and IC50 values were at 32 µM and 41 µM for A172 and T98G respectively. Inhibition of cell proliferation was observed by total cell counts and by cell cycle analysis by flow cytometry, with cell cycle arrest of A172 and T98G cell lines respectively in the G1/G0 and S phases of the cell cycle. 4-NC...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 4-Nerolidylcatechol; Glioblastoma; Cytotoxicity; Autophagy.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000300618
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4-Phenyl-1,3-thiazole-2-amines as scaffolds for new antileishmanial agents J. Venom. Anim. Toxins incl. Trop. Dis.
Rodrigues,Carina Agostinho; Santos,Paloma Freire dos; Costa,Marcela Oliveira Legramanti da; Pavani,Thais Fernanda Amorim; Xander,Patrícia; Geraldo,Mariana Marques; Mengarda,Ana; Moraes,Josué de; Rando,Daniela Gonçales Galasse.
Abstract Background: There is still a need for new alternatives in pharmacological therapy for neglected diseases, as the drugs available show high toxicity and parenteral administration. That is the case for the treatment of leishmaniasis, particularly to the cutaneous clinical form of the disease. In this study, we present the synthesis and biological screening of eight 4-phenyl-1,3-thiazol-2-amines assayed against Leishmania amazonensis. Herein we propose that these compounds are good starting points for the search of new antileishmanial drugs by demonstrating some of the structural aspects which could interfere with the observed activity, as well as suggesting potential macromolecular targets. Methods: The compounds were easily synthesized by the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2-aminothiazoles; Antikinetoplastids; Antileishmanial; Cutaneous; Target fishing.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100317
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(4S)-4,8-dihydroxy-1-tetralone and other chemical constituents from Pestalotiopsis sp. EJC07, endophytic fromBauhinia guianensis Anais da ABC (AABC)
Souza,Eleane M.C. de; Silva,Ellon L. Da; Marinho,Andrey M.R.; Marinho,Patrícia S.B..
The present work reports the isolation of eight compounds fromPestalotiopsis sp. EJC07 isolated as endophytic fromBauhinia guianensis, a tipical plant of the Amazon. The compounds (4S)-4,8-dihydroxy-1-tetralone (1), uracil (2), uridin (3), p-hydroxybenzoic acid (4), ergosterol (5), ergosterol peroxide (6), cerevisterol (7) and ducitol (8) were isolated by chromatographic procedures and identified by spectral methods of 1D and 2D NMR and MS. The compound 1 is being reported for the first time in the genusPestalotiopsis.
Tipo: Info:eu-repo/semantics/article Palavras-chave: B. guianensis; Endophityc fungus; Pestalotiopsis; Tetralone.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100029
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50 anos de pesquisas em limnologia na Amazônia Acta Amazonica
Sioli,Harald.
Constitui-se o presente trabalho da transcrição integral da palestra realizada pelo Dr. Harald Sioli (1910-2004) no Seminário da Amazônia, em 10 de agosto de 1990, quando numa última viagem ao Amazonas, ao completar 80 anos de idade, foi homenageado pelos colegas e a convite do INPA falou sobre "50 anos de pesquisas em limnologia na Amazônia" que, segundo suas próprias palavras, foram "os dias mais decisivos de minha vida". O texto pode ser dividido em duas partes: a primeira se refere à história pessoal - da chegada ao Brasil, de como descobriu a Amazônia e sobreviveu, no interior do Amazonas e Pará, à 2.ª Guerra Mundial, até se tornar pesquisador do INPA e firmar o Convênio INPA/Max Planck. A segunda parte fala da sua pesquisa em limnologia, fazendo...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazônia; Limnologia; Clima equatorial; Quimismo.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672006000300001
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5S rDNA characterization in twelve Sciaenidae fish species (Teleostei, Perciformes): depicting gene diversity and molecular markers Genet. Mol. Biol.
Alves-Costa,Fernanda A.; Martins,Cesar; Matos,Fernanda Del Campos de; Foresti,Fausto; Oliveira,Claudio; Wasko,Adriane P..
In order to extend the genetic data on the Sciaenidae fish family, the present study had the purpose to characterize PCR-generated 5S rDNA repeats of twelve species of this group through PAGE (Polyacrylamide Gel Electrophoresis) analysis. The results showed the occurrence of at least two different 5S rDNA size classes in all the species. Moreover, 5S rDNA repeats of one of the studied species - Isopisthus parvipinnis - were cloned and subjected to nucleotide sequencing and Southern blot membrane hybridization analyses, which permitted to confirm the existence of two major 5S rDNA classes. Phylogenetic analysis based on the nucleotide sequences of different 5S rDNA repeats of I. parvipinnis lead to their separation into two major clusters. These results may...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sciaenidae; Fish; Isopisthus parvipinnis; 5S rDNA; Molecular markers.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200025
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5th Food Safety and Security Symposium: food and health Ciênc. Tecnol. Aliment.
NITZKE,Julio Alberto; CLADERA,Florencia; THYS,Roberta; DA CRUZ,Fabiana Thomé; MARTINELLI,Sônia.
Abstract The 5º Simpósio de Segurança Alimentar (5th Food Safety and Security Symposium) was held in May, 2015, in Bento Gonçalves, RS, Brazil with the objective of discussing the interrelation between food and health, in various perspectives. This paper reviews the state of the art regarding all the issues discussed during the Symposium, connecting them with the lectures presented at the conference. As final remarks, it was perceived that the interrelation between food and health is growing stronger and cannot be discussed without involving the different areas involved.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Food safety; Food security; Food and health.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612016000500001
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6 weeks consumption of pure fresh coconut milk caused up-regulation of eNOS and CSE protein expression in middle-aged male rats BJPS
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
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6-Benzilaminopurina e ácido indolbutírico na multiplicação in vitro da amoreira - preta (Rubus idaeus L.), cv. Tupy Ciência Rural
Erig,Alan Cristiano; De Rossi,Andrea; Fortes,Gerson Renan de Luces.
O presente trabalho avaliou o efeito de diferentes níveis de BAP (0; 2; 4; 6; 8 e 10miM) e de AIB (0; 0,5 e 1miM) na multiplicação in vitro da amoreira-preta cv. Tupy. O meio utilizado foi o MS suplementado com 100mg.<IMG SRC="http:/img/fbpe/cr/v32n5/11864s1.gif">-1 de mio-inositol, 30g.<IMG SRC="http:/img/fbpe/cr/v32n5/11864s1.gif">-1 de sacarose e 6g.<IMG SRC="http:/img/fbpe/cr/v32n5/11864s1.gif">-1 de ágar. Após a inoculação, as culturas foram mantidas em sala de cultura com 16 horas de fotoperíodo, temperatura de 25 ± 2ºC e radiação de 25µmoles.m-2.s-1. O número de gemas e o número de brotações foram avaliados com intervalo semanal, num total de quatro avaliações, e, na última avaliação, considerou-se a altura da brotação, bem como...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reguladores de crescimento; Micropropagação; Cultura de tecidos.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782002000500005
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6-Bromoindirubin-3’-oxime promotes osteogenic differentiation of canine BMSCs through inhibition of GSK3β activity and activation of the Wnt/β-catenin signaling pathway Anais da ABC (AABC)
ZHAO,XIAO-E; YANG,ZHENSHAN; GAO,ZHEN; GE,JUNBANG; WEI,QIANG; MA,BAOHUA.
This study aimed to investigate how 6-bromoindirubin-3’-oxime (BIO) increases the osteogenic differentiation of canine bone mesenchymal stem cells (BMSCs) and the role of the Wnt/β-catenin signaling pathway in this process. We mimicked the effect of Wnt by adding BIO to the culture medium of BMSCs and examined whether canonical Wnt signaling positively affects the differentiation of these cells into osteoblasts. Canine BMSCs were cultured with 0.5 and 1.0 μM BIO under osteogenic conditions and then differentiation markers were investigated. It was found that BIO significantly increased the activity of alkaline phosphatase (ALP), the number of ALP-positive cells, the mineralization level and calcium deposits. Moreover, cells cultured with 0.5 and 1.0 μM...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bone mesenchymal stem cells; Bromoindirubin oxime; Osteogenetic differentiation; Canine.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100610
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6-Gingerol inhibits hair cycle via induction of MMP2 and MMP9 expression Anais da ABC (AABC)
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
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6-n-propyltiouracil (PROP) taster status in Brazilian adults Ciênc. Tecnol. Aliment.
Von Atzingen,Maria Carolina Batista Campos; Silva,Maria Elisabeth Machado Pinto e.
The objective of this study was to determine PROP (6-n-propyltiouracil) taster status in adults and its relationship with anthropometric variables and pleasantness of sugar, salt, and fat. A total of 123 subjects rated the intensity of PROP and sodium cloride (NaCl) solutions using the labeled magnitude scale. For pleasantness evaluation, it was used concentrated orange juice (sugar) and mashed potato (salt and fat). The subjects were classified as non-tasters (n = 35), medium-tasters (n = 33) and super-tasters (n = 55). In this study, no relationship was found between PROP taster status and age, sex, weight, body mass index, and pleasantness. Although genetic markers may influence the degree of liking of certain foods, one must consider that the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Propylthiouracil; Body mass index; Pleasantness.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000400006
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7-epi-griffonilide, a new lactone from Bauhinia pentandra: complete 1H and 13C chemical shift assignments Anais da ABC (AABC)
ALMEIDA,MACIA C.S. DE; SOUZA,LUCIANA G.S.; FERREIRA,DANIELE A.; PINTO,FRANCISCO C.L.; OLIVEIRA,DÉBORA R. DE; SANTIAGO,GILVANDETE M.P.; MONTE,FRANCISCO J.Q.; BRAZ-FILHO,RAIMUNDO; LEMOS,TELMA L.G. DE.
ABSTRACT A new lactone, 7-epi-griffonilide (1), and six known compounds, 2, 3a - 3c, 4a and 4b, were isolated from the leaves of Bauhinia pentandra (Fabaceae). The structures elucidation of 1 and 2 were based on detailed 2D NMR techniques and spectral comparison with related compounds, leading to complete assignment of the 1H and 13C NMR spectra.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bauhinia pentandra; Fabaceae; Cyanoglucoside; Lactones; RMN..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100065
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-866G/A and Ins/Del polymorphisms in the UCP2 gene and diabetic kidney disease: case-control study and meta-analysis Genet. Mol. Biol.
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
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8-Propyl-6H-[1,3]dioxolo[4,5-g]chromen-6-one: A new coumarin with monoamine oxidase B inhibitory activity and possible anti-parkinsonian effects BJPS
Olaya,María del Pilar; Vergel,Nadezdha Esperanza; López,Jose Luis; Viña,Dolores; Guerrero,Mario Francisco.
Parkinson’s disease is a common neurodegenerative disorder. In this study, the monoamine oxidase inhibitory activity and potential anti-parkinsonian effects of 8-propyl-6H-[1,3]dioxolo[4,5-g]chromen-6-one (FCS303), a new synthetic coumarin, were evaluated. To do this, we used the reserpine model of Parkinson’s disease, an assay of levodopa/carbidopa potentiation, the catalepsy model of haloperidol, and an in vitro assay against monoamine oxidase (MAO) activity. Additionally, lipid peroxidation and protein carbonyl group quantification was performed in mice brain homogenates previously treated with haloperidol. FCS303 inhibited monoamine oxidase B (MAO-B) with an IC50 of 5.46 ± 0.36 µM; however, there was no effect on monoamine oxidase A (MAO-A). The oral...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Parkinson’s disease; Monoamine oxidase B; Coumarin; Mice; Reserpine; Levodopa; Carbidopa.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100508
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A 15-year post evaluation of the fire effects on ant community in an area of Amazonian forest Rev. Bras. entomol.
Santos,Jean C.; Delabie,Jacques H. C.; Fernandes,G. Wilson.
Fire represents an important disturbance to ant communities in areas of fire regime. Otherwise, little is known about the effects of fire on ant communities in areas of non-fire regimes, such as in the Amazonian region. We evaluated the long-term effect of fire on ant species richness in a rain forest (Bacaba Plateau) burned 15-years ago and compare our data with the data of primary unburned forest. A total of 85 ant species distributed in 21 genera and 14 tribes were collected; among them, 72 and 44 species were found on the litter and vegetation, respectively. The fire damaged forest studied supports an intermediate richness of ants when compared to a primary unburned rain forest in the same region. A comparative analysis of ant species richness showed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Brazil; Community structure; Rain forest; Species richness.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262008000100015
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