Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 25.200
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
30 años después : una reflexión sobre los estudios rurales y agrarios en Ecuador (Debate Agrario-Rural) Buscador Latinoamericano
Chiriboga V., Manuel.
En la primera década del siglo XXI se está produciendo un nuevo impulso a los estudios rurales y agrarios en el Ecuador. Esta revitalización tiene como protagonistas a diversos núcleos académicos situados en universidades y ONGS (sic) con marcos conceptuales y enfoques analíticos, así como especializaciones disciplinarias que los aglutinan. Algunos enfoques son sociológicos, otros provenientes de la economía política y ciencia política; economía agraria y ecología. Los temas abordados incluyen ecosistemas y manejo de recursos naturales, tenencia de la tierra, género, trabajo rural, comercio internacional. Es evidente un nuevo dinamismo, todavía débil, pero sin embargo prometedor. Aunque hace falta mayor interdisciplinareidad y construir espacios de...
Tipo: Artículo Palavras-chave: ESTUDIOS RURALES; ECONOMÍA AGRARIA; ECOSISTEMAS; MANEJO DE RECURSOS NATURALES; TENENCIA DE LA TIERRA; TRABAJO RURAL; RURAL STUDIES; AGRICULTURAL ECONOMICS; ECOSYSTEMS; NATURAL RESOURCE MANAGEMENT; LAND TENURE; RURAL LABOUR.
Ano: 2009 URL: http://hdl.handle.net/10469/2422
Imagem não selecionada

Imprime registro no formato completo
3D model of amphioxus steroid receptor complexed with estradiol Nature Precedings
Michael E. Baker; David J. Chang.
The origins of signaling by vertebrate steroids are not fully understood. An important advance was the report that an estrogen-binding steroid receptor [SR] is present in amphioxus, a basal chordate with a similar body plan as vertebrates. To investigate the evolution of estrogen binding to steroid receptors, we constructed a 3D model of amphioxus SR complexed with estradiol. This 3D model indicates that although the SR is activated by estradiol, some interactions between estradiol and human ER[alpha] are not conserved in the SR, which can explain the low affinity of estradiol for the SR. These differences between the SR and ER[alpha] in the steroid-binding domain are sufficient to suggest that another steroid is the physiological regulator of the SR....
Tipo: Manuscript Palavras-chave: Cancer; Developmental Biology; Bioinformatics; Evolutionary Biology.
Ano: 2009 URL: http://precedings.nature.com/documents/3316/version/1
Imagem não selecionada

Imprime registro no formato completo
3D model of lamprey estrogen receptor with estradiol and 15[alpha]-hydroxy-estradiol Nature Precedings
Michael E. Baker; David J. Chang; Charlie Chandsawangbhuwana.
Lamprey, a basal vertebrate, contains orthologs of the estrogen receptor (ER), progesterone receptor and corticoid receptor. A perplexing property of lamprey is that 15[alpha]-hydroxy-steroids are active steroids. For example, 15[alpha]-hydroxy-estradiol [15[alpha]-OH-E2] is the estrogen, instead of estradiol (E2). To investigate how 15[alpha]-OH-E2 binds lamprey ER, we constructed a 3D model of the lamprey ER with E2 and 15[alpha]-OH-E2. Our 3D model shows that S[delta] on Met-409 can form a hydrogen bond with the 15[alpha]-hydroxyl on 15[alpha]-OH-E2. In human ER[alpha], the corresponding residue Ile-424 has a van der Waals contact with 15[alpha]-OH-E2. BLAST analysis of GenBank indicates that among vertebrate ERs, only lamprey ER contains a...
Tipo: Manuscript Palavras-chave: Developmental Biology; Ecology; Earth & Environment.
Ano: 2009 URL: http://precedings.nature.com/documents/2768/version/1
Imagem não selecionada

Imprime registro no formato completo
3D modeling of the Arab Formation (Maydan Mahzam Field, Offshore Qatar): an integrated approach ArchiMer
Al-emadi, Ahmed; Jorry, Stephan; Chautru, J.m.; Caline, B.; Blum, M.s.; Jedaan, N.; Fryer, V.; Leandri, P.; Fraisse, C..
Tipo: Text
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00091/20184/17845.pdf
Imagem não selecionada

Imprime registro no formato completo
4領域に分割された牛ロース芯の画像解析形質に関する品種間比較 OAK
村澤, 七月; 中橋, 良信; 浜崎, 陽子; 堀, 武; 加藤, 貴之; 口田, 圭吾; Murasawa, Nazuki; Nakahashi, Yoshinobu; Hori, Takeshi; Kato, Takayuki; Kuchida, Keigo.
Palavras-chave: Image analysis; Marbling arrangement; Quadrant; Rib eye.
Ano: 2009 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2448
Imagem não selecionada

Imprime registro no formato completo
70 years of development of Pharmaceutical Sciences: a lot to celebrate! BJPS
Aranha,Leila Rangel de Carvalho.
Tipo: Info:eu-repo/semantics/other
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000200001
Imagem não selecionada

Imprime registro no formato completo
7-pentoxyresorufin-o-depentilase and 7-Benzyloxyresorufin-o-debenzylase as potential biomarkers of exposure to 17B-estradiol in nile tilapia. Repositório Alice
BITTENCOURT, F. de O.; FRIGHETTO, R. T. S.; QUEIROZ, J. F. de; LOSEKANN, M. E.; LUIZ, A. J. B..
2009
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Biomarcadores; Poluição da água.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/579352
Imagem não selecionada

Imprime registro no formato completo
9aaTAD Prediction result (2006) Nature Precedings
Martin Piskacek.
Recently reported, 9aaTAD transcription factors p53, VP16, MLL/ALL, E2A, HSF1, NF-IL6, NFAT1 and NF-kB interact directly with the general coactivator CBP/p300 aside from already referred TAF9. All four domains of CBP/p300 - KIX, TAZ1, TAZ2 and IBiD provide multiple interactions with 9aaTADs, e.g. p53. Annotation of predicted 9aa TAD using Pattern search ScanProsite on ExPASy and relevant experimental data are listed.
Tipo: Manuscript Palavras-chave: Genetics & Genomics.
Ano: 2009 URL: http://precedings.nature.com/documents/3984/version/1
Imagem não selecionada

Imprime registro no formato completo
9aaTADs mimic DNA to interact with a pseudo-DNA Binding Domain KIX of Med15 (Molecular Chameleons) Nature Precedings
martin piskacek.
The KIX-domain of Gal11/MED15 was shown to interact with short transactivation domain of Pdr1 and Oaf1 (12 and 9 amino acids respectively) annotated to 9aaTAD family. Reported NMR data revealed a surprising sequence similarity of KIX domain and basic-leucine zipper (bZIP).
Tipo: Manuscript Palavras-chave: Genetics & Genomics.
Ano: 2009 URL: http://precedings.nature.com/documents/3939/version/1
Imagem não selecionada

Imprime registro no formato completo
A 1.2 Ma record of glaciation and fluvial discharge from the West European Atlantic margin ArchiMer
Toucanne, Samuel; Zaragosi, S.; Bourillet, Jean-francois; Gibbard, P. L.; Eynaud, F.; Giraudeau, J.; Turon, J. L.; Cremer, M.; Cortijo, E.; Martinez, P.; Rossignol, L..
The correlation of continental sedimentary records with the marine isotope stratigraphy is a challenge of central importance in Quaternary stratigraphy, particularly in Western Europe where long records of glaciation on land areas are particularly rare. Here we demonstrate for the first time the interrelationship of events during the last 1.2 Ma in an ocean-sediment core from the Bay of Biscay (NE Atlantic), SW of the Channel. The identification of discharge variations from tributary river systems to the 'Fleuve Manche' palaeoriver during glacio-eustatic sea-level lowstands demonstrates the correlation of the marine sediment stratigraphy to the expansion and recession of the European ice-sheets. The amplitude and chronology of European ice-sheet...
Tipo: Text Palavras-chave: Middle pleistocene transition; Ice sheet dynamics; Sea level; Climate change; North Atlantic; English channel; Heinrich events; Fleuve manche; Deep; Origin.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6956.pdf
Imagem não selecionada

Imprime registro no formato completo
A 2008-09 Assessment of Texas Department of Agriculture Programs to Support Rural Economic Tourism Events. How Strong Are These Economic Returns? AgEcon
Murova, Olga I.; Hanagriff, Roger D.; Lyford, Conrad P..
This paper determines the main forces that contribute to the creation of positive economic returns to the individual communities from TDA's supported rural tourism program and analyzes these economic returns.
Tipo: Conference Paper or Presentation Palavras-chave: Rural tourism; Rural development; Economic multiplier; Return on investment; Community/Rural/Urban Development.
Ano: 2009 URL: http://purl.umn.edu/56429
Imagem não selecionada

Imprime registro no formato completo
A Amazônia e os desafios de sua ocupação. Infoteca-e
ALVES, R. N. B..
2009
Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Amazônia; Ocupação.
Ano: 2009 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/658928
Imagem não selecionada

Imprime registro no formato completo
A assembléia de abelhas (Hymenoptera, Apidae) de uma área restrita de campos naturais do Parque Estadual de Vila Velha, Paraná e comparações com áreas de campos e cerrado Pap. Avulsos de Zool. (São Paulo)
Gonçalves,Rodrigo B.; Melo,Gabriel A.R.; Aguiar,Antonio J.C..
A assembléia de abelhas (Hymenoptera, Apidae) de uma área restrita de campos naturais do Parque Estadual de Vila Velha, Paraná e comparações com áreas de campos e cerrado. Foram realizadas coletas sistemáticas de abelhas em uma área restrita no Parque Estadual de Vila Velha, Paraná, no período de outubro de 2003 a setembro de 2004. Essa amostragem visou gerar subsídios para comparações entre áreas de campo dentro do Parque e com outras áreas de vegetação aberta brasileiras. A área de estudo possui cerca de quatro hectares e foi subdividida em quatro subáreas contínuas e com o mesmo perímetro. As abelhas em flores e em vôo foram capturadas com auxílio de rede entomológica. Foram coletados 1.459 espécimes pertencentes a 122 espécies de abelhas. Estas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apoidea; Campos gerais; Levantamento; Neotropical; Savana.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009001400001
Imagem não selecionada

Imprime registro no formato completo
A Bayesian approach to estimate the accuracy of "in-house" ELISA assay to measure rabies antibodies from compulsory vaccinated dogs and cattle J. Venom. Anim. Toxins incl. Trop. Dis.
Nogueira,AHC; Silva,C; Gomes,DE; Rosa,ACG; Luvizotto,MCR; Cardoso,TC.
Rabies is a vaccine-preventable disease that causes acute encephalitis in mammals, and it is still a significant public health problem in numerous countries. Infected dogs represent the main vectors involved in human rabies. Additionally, cattle rearing close to geographic areas where vampire bats are found presents an important connection with rural epidemiology. We applied two "in-house" enzyme-linked immunosorbent assay (ELISA) methodologies, considered alternatives to measure antibodies from vaccinated dogs and cattle, without employing the gold standard approach. The ELISA assays were performed on individual serum samples taken from domestic adult dogs and cows compulsory vaccinated against rabies (147 urban dogs and 64 cows; n = 211). The sandwich...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rabies antibody; Bayesian analysis; ELISA assay.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000100012
Imagem não selecionada

Imprime registro no formato completo
A Bayesian Framework for Parameter Estimation in Dynamical Models with Applications to Forecasting Nature Precedings
Flávio Codeço Coelho; Claudia T. Codeço.
Mathematical models in Biology are powerful tools for the study and exploration of complex dynamics. Nevertheless, bringing theoretical results to an agreement with experimental observations involves acknowledging a great deal of uncertainty intrinsic to our theoretical representation of a real system.
Proper handling of such uncertainties, is key to the successful usage of models to predict experimental or field observations. This problem has been addressed over the years by many tools for model calibration an parameter estimation. In this article we present a general framework for uncertainty analysis and parameter estimation which is designed to handle uncertainties associated with the modeling of dynamic biological systems...
Tipo: Manuscript Palavras-chave: Bioinformatics.
Ano: 2009 URL: http://precedings.nature.com/documents/4044/version/1
Imagem não selecionada

Imprime registro no formato completo
A Bayesian Hierarchical Model to Derive Novel Gene Networks from Gene Ontology Fingerprints Nature Precedings
Tingting Qin; Lam Tsoi; Andrew Lawson; Jim Zheng.
We developed a Bayesian hierarchical model to identify gene networks based on the similarity score generated from comparing the gene ontology fingerprints of gene pairs. Genes in this network were assumed to have similar biological functions that can be indicated by their ontology fingerprints. Our results indicate that different pathways show consistent score threshold that allow us to distinguish biological relevant gene—gene connections in the network.
Tipo: Manuscript Palavras-chave: Bioinformatics.
Ano: 2009 URL: http://precedings.nature.com/documents/3511/version/1
Imagem não selecionada

Imprime registro no formato completo
A Benefit Transfer Estimation of Agro-Ecosystems Services AgEcon
Noel, Jay E.; Qenani-Petrela, Eivis; Mastin, Thomas.
Tipo: Journal Article Palavras-chave: Environmental Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/92844
Imagem não selecionada

Imprime registro no formato completo
A benthic Si mass balance on the Congo margin: Origin of the 4000 m DSi anomaly and implications for the transfer of Si from land to ocean ArchiMer
Ragueneau, O.; Regaudie-de-gioux, A.; Moriceau, B.; Gallinari, M.; Vangriesheim, Annick; Baurand, F.; Khripounoff, Alexis.
To elucidate the origin of the silicic acid (DSi) anomaly observed along the 4000 isobath on the Congo margin, we have established a benthic Si mass balance and performed direct measurements of biogenic silica (bSiO(2)) dissolution in the deep waters and in the sediments. Results strongly suggest that the anomaly originates from the sediments; the intensity of DSi recycling is consistent with the degradation of organic matter, as observed from Si:O-2 ratios in the benthic fluxes compared to that ratio observed in the anomalies. Strong imbalances, observed in both the Si and C mass balances, suggest that the biogenic matter that degrades and dissolves in these sediments near 4000 m does not come from pelagic sedimentation. It is probably not coming also...
Tipo: Text Palavras-chave: Congo; Continental margin; Preservation; Dissolution; Biogenic silica.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-7410.pdf
Imagem não selecionada

Imprime registro no formato completo
A BIBLIOGRAPHY OF LAND GRANT AND AGRICULTURAL EXTENSION LITERATURE AgEcon
Bahn, Henry M..
Tipo: Report Palavras-chave: Teaching/Communication/Extension/Profession; Q.
Ano: 2009 URL: http://purl.umn.edu/53128
Imagem não selecionada

Imprime registro no formato completo
A bi-dimensional genome scan for prolificacy traits in pigs shows the existence of multiple epistatic QTL Inra
Noguera, J.L.; Rodríguez, C.; Varona, L.; Tomàs, A.; Muñoz, G.; Ramírez, O.; Barragán, C.; Arqué, M.; Bidanel, J.P.; Amills, M.; Ovilo, C.; Sánchez, A..
Tipo: Journal Article Palavras-chave: FEMALE REPRODUCTIVE TRAITS; LARGE WHITE; IBERIAN PIGS; LITTER SIZE; PIGLET SURVIVABILITY; TEAT NUMBER; LOCI; MEISHAN; GROWTH; MICE.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010e57ba72b&uri=/notices/prodinra1/2010/11/
Registros recuperados: 25.200
Primeira ... 123456789 ... 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