Results 61 to 70 of about 2,800 (198)

Synthesis and Characterization of Bifunctional α‐Fe2O3‐Ag Nanoparticles

open access: yesAdvances 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

Avaliação socioeconômica do PRONAF no Estado do Paraná [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Sócio-Econômico. Programa de Pós-Graduação em Economia.Este trabalho tem por objetivo analisar o impacto sócio econômico nos 30 municípios que mais contrataram crédito do PRONAF no ...
Bueno, Luciano Ribeiro
core  

A implementação do programa nacional de fortalecimento da agricultura familiar na pesca artesanal de Imbé, RS/Brasil

open access: yesCampos Neutrais
O Município de Imbé tem origem na população tradicional de pescadores artesanais que atualmente estão inseridos no meio urbano, dividindo as áreas de pesca com outras atividades de uma cidade urbanizada.  Por possuírem características que os diferenciam,
Jonas Jose Seminotti, Matheus Philippsen
doaj   +1 more source

Crédito rural e a agricultura familiar

open access: yesAgropecuária 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  

Decoding Brazil's bean belt: Spatiotemporal patterns, production systems and the pulse of bean production (2011–2022)

open access: yesGeo: Geography and Environment, Volume 12, Issue 2, July‐December 2025.
Short Abstract This study aimed to map consolidated bean production areas in Brazil and analyse their spatial‐temporal evolution from 2011 to 2022. Based on autocorrelation and relative frequency patterns, four primary bean belts were identified: South, Central Brazil, Mato Grosso and Northeast.
Clever Lucas Aguilar   +2 more
wiley   +1 more source

Bovine Serum Albumin and Chitosan Coated Silver Nanoparticles and Its Antimicrobial Activity against Oral and Nonoral Bacteria

open access: yesJournal of Nanomaterials, Volume 2015, Issue 1, 2015., 2015
Antimicrobial agents have been developed for drug‐resistance infections, which have been rapidly increasing; however, the control of involved microorganisms is still a challenge. In this work, SNP with bovine serum albumin (BSA) and chitosan (CS) coatings were prepared with an aqueous reduction method, characterized using dispersion light scattering ...
León Francisco Espinosa-Cristóbal   +8 more
wiley   +1 more source

Políticas públicas e lutas sociais no meio rural: dilemas e contradições do PRONAF [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Sócio-Econômico, Programa de Pós-Graduação em Serviço Social, Florianópolis, 2013.O PRONAF foi criado em decorrência das diversas lutas travadas pelos movimentos sociais nas décadas ...
Costa, Carolina Rodrigues
core  

O pronaf e a agricultura familiar catarinense

open access: yesAgropecuária Catarinense, 2021
PDF
Guimarães, Djalma Rogério   +2 more
openaire   +2 more sources

Cell Death Mechanisms Produced by Carbon‐Based Nanoparticles

open access: yesJournal of Nanotechnology, Volume 2025, Issue 1, 2025.
Using carbon‐based nanoparticles, such as diamond, graphite, fullerene, and nanotubes, has increased their research as possible strategies for drug delivery to control diseases, especially cancer. However, because these materials, when interacting with the living environment, release substances that are capable of inducing cell death by themselves, it ...
Santos-Adriana Martel-Estrada   +7 more
wiley   +1 more source

A Novel Route for the Preparation of Gold Nanoparticles in Polycaprolactone Nanofibers

open access: yesJournal of Nanomaterials, Volume 2015, Issue 1, 2015., 2015
A facile strategy for the fabrication of polycaprolactone (PCL) nanofibers containing gold nanoparticles (AuNPs) is proposed. The method is based on electrospinning nanosuspensions loaded with passivated Au nanoparticles. The optical property of gold nanoparticles synthesized was observed by UV‐visible absorption spectra.
Simón Yobanny Reyes-López   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy