Results 51 to 60 of about 2,800 (198)
Journal of Chemistry, Volume 2016, Issue 1, 2016., 2016 A green approach to produce the indolyl derivatives from four natural quinones (perezone, isoperezone, menadione, and plumbagin) was performed; in this regard, a comparative study was accomplished among the typical mantle heating and three nonconventional activating modes of reaction (microwave, near‐infrared, and high speed ball milling or ...
René Gerardo Escobedo-González +9 more
wiley +1 more source
Efeitos do Pronaf sobre a pobreza rural no Brasil (2001-2009)
Revista de Economia e Sociologia Rural, 2014 O objetivo deste trabalho é analisar os efeitos do Programa Nacional de Fortalecimento da Agricultura Familiar (Pronaf) sobre a pobreza rural (Índice FGT) no Brasil no período de 2001-2009.
Henrique Rogê Batista +1 more
doaj +2 more sources
Boletim Goiano de Geografia, 2019 O artigo examina a aplicação do recurso do Pronaf no estado de Goiás, admitindo como hipótese o direcionamento desse recurso para atividades tradicionais e municípios que apresentam maior dinamismo econômico.
Graciella Corcioli
doaj +1 more source
Raízes: Revista de Ciências Sociais e Econômicas, 2002 O PRONAF é um programa governamental cujo objetivo é apoiar a pequena agricultura familiar, criado a partir da participação ativa do movimento sindical rural. O objetivo desse artigo é analisar os conselhos do PRONAF, enfatizando as diferenças, em termos de participação, em relação a outros tipos de conselhos. O principal
openaire +2 more sources
Journal of Nanomaterials, Volume 2016, Issue 1, 2016., 2016 Nanoparticles of Ag with different sizes and structures were obtained and studied. Two methods for reductions of Ag ions were employed, chemical reduction by sodium borohydride and ethylene glycol. Cuboctahedral and icosahedral structures were obtained. Molecular simulations were carried out in order to evaluate the reactivity of both structures.
Álvaro de Jesús Ruíz-Baltazar +4 more
wiley +1 more source
The Landless Rural Workers Movement (MST) and New Agrarian Questions in Brazil
Journal of Agrarian Change, EarlyView.ABSTRACT The Landless Rural Workers Movement of Brazil (MST) primarily organized occupations of large‐scale farms, forcing the redistribution of land for creation of agrarian reform settlements. In the past 20 years, however, land occupations and the establishment of new agrarian reform settlements have consistently declined, while the MST shifted ...
Estevan Coca, Gustavo de L. T. Oliveira
wiley +1 more source
Analysis for the Sorption Kinetics of Ag Nanoparticles on Natural Clinoptilolite
Advances in Condensed Matter Physics, Volume 2015, Issue 1, 2015., 2015 The kinetic adsorption behavior of silver nanoparticles deposited on a natural zeolite from Oaxaca is presented. Theoretical models as Lagergren first‐order, pseudo‐second‐order, Elovich, and intraparticle diffusion were employed and compared with experimental data obtained by atomic absorption spectrophotometry technique. Correlation factors R2 of the
Alvaro Ruíz-Baltazar +6 more
wiley +1 more source
Funcionamento do PRONAF crédito sobre diferentes realidades sociais e públicos [PDF]
, 2011 TCC (graduação em Agronomia) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, 2011A agricultura familiar desenvolve papel fundamental no desenvolvimento do País.
Silva, Cleomar Ferro
core
Annual Grass Silage: A Productive and Cost‐Effective Strategy for Ruminant Nutrition
Advances in Agriculture, Volume 2026, Issue 1, 2026.This study was conducted to evaluate the agronomic performance, fermentation characteristics, cost analysis, and financial returns of silage produced from annual forage crops. The experiment followed a randomized block design with four treatments: BRS Potiguar maize, BRS Cruzeta maize, BRS Ponta Negra sorghum, and BRS 1501 pearl millet, under drip ...
Felipe Pontes Teixeira das Chagas +9 more
wiley +1 more source