Results 51 to 60 of about 2,038 (202)
Journal of Nanomaterials, Volume 2017, Issue 1, 2017., 2017 The adhesion ability and adaptability of bacteria, coupled with constant use of the same bactericides, have made the increase in the diversity of treatments against infections necessary. Nanotechnology has played an important role in the search for new ways to prevent and treat infections, including the use of metallic nanoparticles with antibacterial ...
Erick Pazos-Ortiz +8 more
wiley +1 more source
Mediações: Revista de Ciências Sociais, 2018 Este artigo parte da hipótese de que o Programa Nacional de Fortalecimento da Agricultura Familiar (Pronaf) foi um marco definitivo para os pequenos produtores rurais, até então excluídos das políticas públicas nacionais. Já que, após sua criação em 1995
Giovanni Barillari de Freitas
doaj +1 more source
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
Crédito rural e a agricultura familiar
Agropecuária Catarinense, 2023 Com o surgimento do Pronaf, estabeleceu-se novas linhas de apoio e financiamento diferenciadas aos agricultores classificados como familiares. Nesta matéria apresenta-se, resumidamente, as principais linhas de financiamento amparadas pelo Pronaf, hoje ...
Antônio Trevisan
doaj
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
O pronaf e a agricultura familiar catarinense
Agropecuária Catarinense, 2021 Guimarães, Djalma Rogério +2 more
openaire +2 more sources
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
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
Synthesis and Characterization of Bifunctional α‐Fe2O3‐Ag Nanoparticles
Advances in Condensed Matter Physics, Volume 2015, Issue 1, 2015., 2015 The synthesis of α‐Fe2O3‐Ag bimetallic nanoparticles using a novel and simplified route is presented in this work. These hybrid nanoparticles were produced using a modification of the chemical reduction method by sodium borohydride (NaBH4). Fe(III) chloride hexahydrate (FeCl3·6H2O) and silver nitrate (AgNO3) as precursors were employed.
Alvaro Ruíz-Baltazar +7 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
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