Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 7.974
Primeira ... 456789101112 ... Última
Imagem não selecionada

Imprime registro no formato completo
A Preliminary Note on Yeasts Associated With Fecal Pellets of Rodents and Marsupials of Atlantic Forest Fragments in Rio de Janeiro, Brazil Rev. Microbiol.
Abranches,Jacqueline; Nóbrega,Hilda N.; Valente,Patrícia; Mendonça-Hagler,Leda C.; Hagler,Allen N..
Yeasts had mean counts of above 106 CFU/g in the fecal pellets of small mammals from tropical forest fragments. Most of the 55 species isolated were fermentative ascomycetes, with the most frequent being Debaryomyces hansenii, Pichia membranifaciens and Issatchenkia orientalis, whereas Rhodotorula mucilaginosa was the most frequent yeast of basidiomycetous affinity.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Small mammals; Yeast diversity; Yeast vectors.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141998000300004
Imagem não selecionada

Imprime registro no formato completo
A process-based model for carbon and nitrogen transfers in soil organic matter IRD
Pansu, Marc; Sallih, Z.; Bottner, P..
Tipo: Text Palavras-chave: SOL; MATIERE ORGANIQUE; CARBONE; AZOTE; FLUX; MINERALISATION; HUMIFICATION; NITRIFICATION; ISOTOPE; MODELISATION; MODELE MATHEMATIQUE; ETUDE EXPERIMENTALE; MOMOS METHODE.
Ano: 1998 URL: http://www.documentation.ird.fr/hor/fdi:010025602-098
Imagem não selecionada

Imprime registro no formato completo
A produção de sementes de milho em comunidades rurais de Minas Gerais. Repositório Alice
GARCIA, J. C.; ARAUJO, J. G. F.de..
Uma das formas de se transferir novas tecnologias para agricultores e a modificacao de caracteristicas dos insumos que eles usam. No caso das sementes, cada nova cultivar e um novo conjunto de genes. Esta estrategia tem tido sucesso, no caso do trigo e do arroz, com resultados menores no caso do milho. Em paises ou regiao onde os agricultores sao pobres, a difusao de nova cultivares de milho e dificultada. Um programa de producao de sementes de milho em comunidades de agricultores, tem sido conduzido em Minas Gerais. O objetivo deste trabalho foi analisar a difusao de cultivares de milho, atraves de sementes produzidas nesta comunidades. Pretendeu-se ter uma visao preliminar de como estas sementes estao sendo produzidas, beneficiadas, distribuidas e as...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Milho; Economia; Semente; Pequeno produtor; Zea mays; Maize; Economy; Seed.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/handle/doc/480805
Imagem não selecionada

Imprime registro no formato completo
A produtividade na pecuaria leiteira. Repositório Alice
CAMARGO, A. C. de; PEDROSO, A. de F.; NOVO, A. L. M..
1998
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Gado Leiteiro; Produtividade; Dairy cattle; Productivity.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/handle/doc/44345
Imagem não selecionada

Imprime registro no formato completo
A PROFILE OF FIRMS ENGAGED IN FRUIT AND VEGETABLE TRADE BETWEEN THE UNITED STATES AND LATIN AMERICA AgEcon
Marin, L.R.; Epperson, James E.; Ames, Glenn C.W..
This research analyzed characteristics of 109 firms engaged in international fruit and vegetable trade. A Probit model was used to determine the probability that a firm was of U.S. or Latin American origin. Results indicated that firms were rather homogenous, similar in structure, market outlets, and price setting information and strategies.
Tipo: Journal Article Palavras-chave: Agribusiness; International Relations/Trade.
Ano: 1998 URL: http://purl.umn.edu/27453
Imagem não selecionada

Imprime registro no formato completo
A PROFILE OF POVERTY IN EGYPT: 1997 AgEcon
Datt, Gaurav; Jolliffe, Dean; Sharma, Manohar P..
This paper presents a profile of poverty in Egypt for 1997. It assesses the magnitude of poverty and its distribution across geographic and socioeconomic groups, provides information on the characteristics of the poor, illustrates the heterogeneity among the poor, and helps identify empirical correlates of poverty. The poverty profile is constructed using data from the recently completed Egypt Integrated Household Survey, a nationwide, multiple-topic household survey, carried out by the International Food Policy Research Institute in coordination with the Ministry of Agriculture and Land Reclamation and the Ministry of Trade and Supply. Reference poverty lines that take into account regional differences in food and nonfood prices, age and composition of...
Tipo: Working or Discussion Paper Palavras-chave: Food Security and Poverty.
Ano: 1998 URL: http://purl.umn.edu/94863
Imagem não selecionada

Imprime registro no formato completo
A propos de pratiques anti-érosives traditionnelles : l'élaboration des terrasses des monts Mandara et la récupération des terres hardé IRD
Seignobos, Christian.
Tipo: Text Palavras-chave: LUTTE ANTIEROSIVE; AGRICULTURE TRADITIONNELLE; PRATIQUE CULTURALE; SOL HARDE.
Ano: 1998 URL: http://www.documentation.ird.fr/hor/fdi:010017978
Imagem não selecionada

Imprime registro no formato completo
A propos des cycles du coton... la capacité de charge, une notion relative IRD
Castella, Jean-Christophe.
Tipo: Text Palavras-chave: SYSTEME DE CULTURE; COTON; ETUDE COMPARATIVE; PRODUCTION AGRICOLE; PRATIQUE CULTURALE; INSECTICIDE; ANALYSE SYSTEMIQUE; CAPACITE DE CHARGE; MODELISATION.
Ano: 1998 URL: http://www.documentation.ird.fr/hor/fdi:010013722
Imagem não selecionada

Imprime registro no formato completo
A propos du taurin en pays fali actuel et en pays sao ancien : apports de l'expression orale et de l'archéologie IRD
Gauthier, J.G..
Tipo: Text Palavras-chave: BOVIN; RACE BIOLOGIQUE; DISPARITION; ARCHEOLOGIE; STRUCTURE D'HABITAT; CERAMIQUE; OBJET; TRADITION ORALE.
Ano: 1998 URL: http://www.documentation.ird.fr/hor/fdi:010015347
Imagem não selecionada

Imprime registro no formato completo
A proposal for measuring the benefits of policy-oriented social science research AgEcon
Park, Donghyun.
This paper addresses the problem of how to measure the benefits of policy-oriented social science research. It argues that social science research promotes economic efficiency in three different ways—it fosters efficiency in the public sector both directly and through effects on the general public, and it increases the efficiency of the private sector. The paper also proposes a practical empirical methodology for measuring the benefits of policy-oriented social science research. The proposed methodology includes a three-stage analysis of a cross-section of countries. The relationship between research and policy is estimated first. Then an estimate is made of the relationship between policy and economic growth. Finally, these estimates are used to deduce...
Tipo: Working or Discussion Paper Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1998 URL: http://purl.umn.edu/48292
Imagem não selecionada

Imprime registro no formato completo
A qualidade do café no Brasil: histórico e perspectivas. Repositório Alice
SILVA, L. F.; CORTEZ, J. G..
Este trabalho dicorre sobre as modificacoes impostas pelo modelo tecnologico voltado para a produtividade na cultura cafeeira brasileira a partir da decada de 60, relaciona algumas decorrencias daquele novo processo produtivo sobre as premissas de comercializacao e a atual imagem do produto brasileiro e estabelece novas perspectivas para a futura producao, industrializacao e comercialziaocao de cafe.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Cafe; Qualidade; Historia; Brasil; Coffee; Quality; History; Brazil.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/handle/doc/84107
Imagem não selecionada

Imprime registro no formato completo
A Quality-Adjusted Cost Index for Estimating Future Consumer Surplus from Innovation AgEcon
Austin, David H.; MacAuley, Molly K..
This paper describes a model for estimating, in a probabilistic framework, expected future consumer surplus from planned new product innovations. The model has been applied to estimations of taxpayer benefits from NASA's New Millenium Program (NMP), which develops new technologies for space science, and to the digital data storage technologies being supported by the Department of Commerce's Advanced Technology Program (ATP). The model uses cost index methods based on consumers' estimated marginal valuation for quality improvements in the technology. Probabilistic values for performance increases are taken from the innovators' own expectations. The analysis reveals the sensitivity of welfare increases to these values, which are assumed to be biased upward....
Tipo: Working or Discussion Paper Palavras-chave: Quality-adjusted cost index; Consumer surplus; Innovation; Environmental Economics and Policy; O32; H43; D60.
Ano: 1998 URL: http://purl.umn.edu/10655
Imagem não selecionada

Imprime registro no formato completo
A quarter of a century of Australian agricultural economics - some personal reflections AgEcon
Gruen, Fred H.G..
The late Fred Gruen (1921–1997) was asked to write these previously unpublished reflections for the twenty‐eighth Annual Conference of the Australian Agricultural Economics Society in 1984; they were circulated in working paper format as Gruen (1986). In this paper, Fred, who made the transition from agricultural to general economics later in his career, offers a modest perspective on his contributions to agricultural analysis and policy. The unifying theme in this outstandingly productive life was his focus on public policy issues whose resolution would impact importantly on the lives of many — that is, his intellectual curiosity was driven ultimately by his philanthropy.
Tipo: Journal Article Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1998 URL: http://purl.umn.edu/117228
Imagem não selecionada

Imprime registro no formato completo
A radiação laser arseneto de gálio (AsGa) na regeneração do nervo radial submetido a reparação cirúrgica secundária Braz. J. Vet. Res. Anim. Sci.
STAINKI,Daniel Roulim; RAISER,Alceu Gaspar; GRAÇA,Dominguita Lühers; BECKER,Cristina; FERNANDEZ,Gilda Maria Saldanha.
Vinte e quatro cães adultos, sem raça definida, foram separados em quatro grupos e submetidos a neurotomia bilateral do nervo radial, em nível do terço distal do úmero e, 21 dias após, sofreram anastomose epineural secundária, término-terminal. Nos 10 dias subseqüentes à neuroanastomose, o membro esquerdo de todos os cães foi irradiado com laser arseneto de gálio no intuito de investigar sua influência na regeneração do nervo. O membro contralateral serviu como testemunha. A recuperação funcional foi verificada através da característica da deambulação, testes de sensibilidade e avaliação motora. Foram efetuadas biópsias bilaterais, na região de anastomose, aos 10 dias (grupo A), 30 dias (grupo B), 60 dias (grupo C) e 90 dias (grupo D) após a reconstituição...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Laser; Regeneração; Cicatrização; Nervo radial cães.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961998000100007
Imagem não selecionada

Imprime registro no formato completo
A rapid detection method for PAI-1 promoter insertion/deletion polymorphism (4G/5G) Genet. Mol. Biol.
Annichino-Bizzacchi,Joyce M.; Pugliese,Luciana; Arruda,Valder R..
Plasminogen activator inhibitor-1 (PAI-1) is an important inhibitor of fibrinolysis, and increased levels of PAI-1 are associated with atheroma and myocardial infarction. A common 4G/5G insertion/deletion polymorphism located in the promoter region of PAI-1 gene has been described associated with PAI-1 activity in plasma levels. Genotyping of this polymorphism is commonly conducted with an allele-specific oligonucleotide melting technique. In the present study, we describe a quick, easy method for genotyping 4G/5G polymorphism in the promoter region of the PAI-1 gene.
Tipo: Info:eu-repo/semantics/article
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000300004
Imagem não selecionada

Imprime registro no formato completo
A rapid technique for analysis of formalin-fixed, paraffin-embedded tissues by fluorescent in situ hybridization with alpha-satellite probes Genet. Mol. Biol.
Barril,Nilce; Carvalho-Salles,Andréa Borduchi; Tajara,Eloiza Helena.
We describe a rapid procedure for preparing archival tissues for interphase FISH analysis. The present protocol differs from others previously described because it allows the obtention of nuclei in satisfactory number and quality without using special equipments, adhesive-treated slides or solutions for chromatin decondensation. The method is of low cost and useful for retrospective analyses of formalin-fixed, paraffin-embedded samples.
Tipo: Info:eu-repo/semantics/article
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000400006
Imagem não selecionada

Imprime registro no formato completo
A recapitulation of errata and omissions to Sphecid Wasps of the World. A generic Revision Naturalis
Bohart, R.M.; Menke, A.S.; Simon Thomas, R.T..
The handbook ""Sphecid Wasps of the World. A generic Revision"", by R. M. Bohart and A. S. Menke, 1976, University of California Press, Berkeley etc., p. ix, 695, commonly known as the Big Blue Book (BBB), is the most frequently used book on the worldwide taxonomy of the Sphecidae (Hymenoptera) down to subfamilies, tribes, and genera. A book of this size unavoidable contains mistakes. Since its publication a long row of errata and omissions were published in a variety of articles: see references.
Tipo: Article / Letter to the editor
Ano: 1998 URL: http://www.repository.naturalis.nl/record/506345
Imagem não selecionada

Imprime registro no formato completo
A RE-EXAMINATION OF EXCESS SENSITIVITY PUZZLE WHEN CONSUMERS FORECAST THE INCOME PROCESS AgEcon
Banerjee, Anurag N.; Basu, Parantap.
In this paper, we address the issue of excess sensitivity/ smoothness of consumption purely from an estimation and forecasting point of view. Suppose the agent estimates the income process using the past income data and obtains best linear unbiased forecasts of future income and then she computes permanent income using these forecasts. How far will she be if she misspecies the income process as a trend stationary process when truly it is diference stationary? Using the recently developed sensitivity indices for forecasts, we argue that for a plausible characterization of the deterministic trend term in the income process, the mispecication bias for estimate of marginal propensity to consume is of second order importance.
Tipo: Working or Discussion Paper Palavras-chave: Consumer/Household Economics.
Ano: 1998 URL: http://purl.umn.edu/31876
Imagem não selecionada

Imprime registro no formato completo
A Regional Analysis of Maize Biological Diversity in Southeastern Guanajuato, Mexico AgEcon
Gomez, Jose Alfonso Aguirre; Bellon, Mauricio R.; Smale, Melinda.
Four environments with contrasting potential for agricultural productivity and infrastructure development were identified in Guanajuato State, Mexico, to test hypotheses about the relationship of maize biological diversity to the region's potential for agricultural productivity and infrastructure development. Samples of all types of maize grown by a random sample of farmers were collected from each environment. The maize samples were classified by race, racial mixture, or type of 'creolized' or improved variety. Landraces were the dominant maize class in all four environments; the use of improved varieties was negligible. Several diversity indices were calculated, and no statistically significant differences were apparent between the environments with the...
Tipo: Working or Discussion Paper Palavras-chave: Crop Production/Industries.
Ano: 1998 URL: http://purl.umn.edu/7671
Imagem não selecionada

Imprime registro no formato completo
A Report Prepared for the Queensland Commercial Fishermen's Organisation AgEcon
Ramsay, Gavin; Tisdell, Clement A.; Harrison, Stephen R.; Pullar, David; Sun, Samantha; Tibbetts, Ian.
Tipo: Working or Discussion Paper Palavras-chave: Environmental Economics and Policy.
Ano: 1998 URL: http://purl.umn.edu/54346
Registros recuperados: 7.974
Primeira ... 456789101112 ... 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