Skip to Content 1
Ir para o menu 2
Ir para a busca 3

Portal Embrapa

Language Language

português English
Entrar

Search Publications

Sort by: date | alphabetically


Prediction of mineral soil fraction through regressions trees and multiple (linear) regressions. Author(s): PINHEIRA, H.; OWENS, P. R.; ANJOS, L. H. C. dos; CARVALHO JUNIOR, W. de; CHAGAS, C. da S. Repository: BDPA Publication year: 2015
A non-archimedean dea model to assess group comparisons. Author(s): SOUZA, G. da S. e; GOMES, E. G. We consider the use of the non-Archimedean infinitesimal epsilon in DEA-CCR models. The application of interest is defined by the performance measure of the Brazilian Agricultural Research Corporation... ... Repository: BDPA Publication year: 2016
Improving agricultural economic efficiency in Brazil. Author(s): SOUZA, G. da S. e; GOMES, E. G. In this article, we use Brazilian census data (1995/1996 and 2006) to model agricultural production at the state level in Brazil. Cost-efficiency measurements are computed using data envelopment analy... ... Repository: BDPA Publication year: 2015
Management of agricultural research center in Brazil: a DEA application using a dynamic GMM approach. Author(s): SOUZA, G. da S. e; GOMES, E. G. In this paper, we measure the performance for each of the Brazilian Agricultural Research Corporation research center by means of a Data Envelopment Analysis model. Performance data are available for... ... Repository: BDPA Publication year: 2015
Assessing the determinants of rural income dispersion in Brazil. Author(s): SOUZA, G. da S. e; GOMES, E. G.; ALVES, E. R. de A. This article has as its objective the analysis of rural income dispersion in Brazil. To this en we fit econometric regression models using the Gini index as the dependent variable, tecnology, and envi... ... Repository: BDPA Publication year: 2015
Conditional FDH efficiency, income dispersion and market imperfections: the case of the Brazilian agricultural census of 2006. Author(s): SOUZA, G. da S. e; GOMES, E. G. In this article we assess the effect of market imperfections and income inequality on rural production efficiency. The analysis is carried out using the notion of stochastic conditional efficiency com... ... Repository: BDPA Publication year: 2015
Mapping Fractional Cropland Distribution in Mato Grosso, Brazil Using Time Series MODIS Enhanced Vegetation Index and Landsat Thematic Mapper Data. Author(s): ZHU, C.; LU, D.; VICTORIA, D. de C.; DUTRA, L. V. Mapping cropland distribution over large areas has attracted great attention in recent years, however, traditional pixel-based classification approaches produce high uncertainty in cropland area stati... ... Repository: BDPA Publication year: 2016
Imperfeições de mercado e concentração de renda na produção agrícola. Author(s): SOUZA, G. da S. e; GOMES, E. G.; ALVES, E. R. de A. O desempenho da agricultura brasileira é calculado por medidas de eficiência técnica por meio de um modelo de envoltória com disponibilidade plena ? Free Disposal Hull (FDH). A modelagem do processo d... ... Repository: BDPA Publication year: 2018
Soil evaluation and socioeconomic factors influence on agricultural efficiency: a pilot study in Rio de Janeiro. Author(s): GOMES, E. G.; FIDALGO, E. C. C.; OLIVEIRA, E.; MARTINS, A. L. da S.; OLIVEIRA, A. P. de; COELHO, M. R. In this paper we evaluate the agricultural efficiency of the municipalities of the state Rio de Janeiro and assess the influence of contextual variables on the performance. The scores are computed by... ... Repository: BDPA Publication year: 2022
Zinc fractionation in cow, goat, sheep and soybean milk samples using gel-electrophoresis and determination by electrothermal atomic absorption spectrometry (ETAAS). Author(s): BOSSU, C. M.; GIGLIOTI, R.; OLIVEIRA, M. C. de S.; OLIVEIRA, P. V. DE; NOGUEIRA, A. R. de A. A screening method for zinc levels in different milk samples (raw cow, raw sheep, UHT cow, UHT goat and soybean milk base) was performed to establish the Zn levels' differences in protein samples. The... ... Repository: BDPA Publication year: 2021

Showing 1 - 10 of 109 results.

Observation

Some of Embrapa's publications are published as ePub files. To read them, use or download one of the following free software options to your computer or mobile device. Android: Google Play Books; IOS: iBooks; Windows and Linux: Calibre.

Access other publications

Access the Agricultural Research Database (BDPA) to consult Embrapa's full library collection and records.
Visit Embrapa Bookstore to purchase books and other publications sold by Embrapa.