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A parametric approach for evaluating the technical efficiency of the brazilian agricultural sector. Author(s): SOUZA, G. da S. e; GOMES, E. G.; GAZZOLA, R.; WANDER, A. E.; SOUZA, R. da S. In this study we assessed the technical efficiency of the 27 Brazilian states in the years 1995/96 and 2006. The ata on land and labor were otained from the agricultural census of the two considered p... ... Repository: BDPA Publication year: 2009
Revisão sobre modelagem da avaliação do rendimento considerando a influência da variabilidade temporal em espécies frutíferas perenes. Author(s): GEBLER, L.; MAGRO, R. B.; SPERANZA, E. A. O objetivo deste trabalho foi realizar uma revisão narrativa da literatura sobre os métodos utilizados para a avaliação do rendimento de culturas frutíferas perenes, destacando as atuais limitações me... ... Repository: BDPA Publication year: 2024
Projeção da distribuição diamétrica de uma floresta explorada seletivamente na Amazônia Ocidental. Author(s): VASCONCELOS, S. S.; HIGUCHI, N.; OLIVEIRA, M. V. N. d'. Utilizando um modelo estocástico, foi projetada a distribuição diamétrica futura de uma floresta submetida à exploração seletiva de madeira na Amazônia Ocidental. Foram utilizados dados de cinco parce... ... Repository: BDPA Publication year: 2009
Using stochastic frontier approach to assess technical efficiency in Brazilian agriculture. Author(s): SOUZA, G. da S. e; WANDER, A. E.; GOMES, E. G.; GAZZOLA, R. Repository: BDPA Publication year: 2009
Are Brazil nut populations threatened by fruit harvest? Author(s): BERTWELL, T. D.; KAINER, K. A.; CROPPER JUNIOR, W. P.; STAUDHAMMER, C. L.; WADT, L. H. de O. Harvest of Brazil nuts from the large, iconic tree Bertholletia excelsa generates substantial income for smallholders, providing a strong incentive to conserve the mature forests where it grows. Altho... ... Repository: BDPA Publication year: 2018
Stochastic frontier approach to agricultural production including technical effects: the brazilian agricultural censures of 1995-1996 and 2006. Author(s): SOUZA, G. da S. e; ALVES, E. R. de A.; GOMES, E. G. In this paper we analyze the impact of Embrapa’s research on the technical efficiencies of Brazilian farmers, particularly the poor. Using a stochastic frontier approach, we estimate a production func... ... Repository: BDPA Publication year: 2013
In silico approach for viral mutations and sustainability of immunizations. Author(s): CASTRO, A. de In this paper we use virtual samples of individuals and a dynamical modeling proposed in a previous study to study the behavior of immune memory against antigenic mutation. Repository: BDPA Publication year: 2015
Efficiency of volumetric equations in silvopastoral systems. Author(s): PYLES, M. V.; MULLER, M. D.; JORGE, D. L.; NOGUEIRA, G. S. Repository: BDPA Publication year: 2015
Effects of education and investment in research in agricultural production in Brazil. Author(s): GOMES, E. G.; SOUZA, G. da S. e; GAZZOLA, R.; AVILA, A. F. D. We use census data (1996 and 2006) to model the agricultural production at state level in Brazil. Cost efficiency measurements are computed using data envelopment analysis and the response is assessed... ... Repository: BDPA Publication year: 2010
Eficiência técnica na produção de manga em Petrolina (PE). Author(s): FERREIRA, C. B.; ARAÚJO, J. A.; LIMA, J. R. F. de Neste estudo será abordada a produção total dos fatores (PTF) na produção de manga no semiárido brasileiro, em específico no Vale do Submédio São Francisco. A maior demanda por produtos agroalimentare... ... Repository: BDPA Publication year: 2014

Showing 1 - 10 of 647 results.

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