Results 31 to 40 of about 1,526 (182)

Avaliação do desempenho operacional do harvester 911.3 X3M em áreas declivosas

Floresta e Ambiente
O presente trabalho teve como objetivo avaliar as operações de corte florestal do harvester 911.3 X3M em diferentes classes de declividade e sentidos de operação, bem como avaliar os movimentos nas distintas operações da máquina.
Renato Cesar Gonçalves Robert, Flávia Alessandra Pinheiro Cordeiro e Silva, Marcio Pereira da Rocha, Edvaldes José do Amaral, lvânio Luiz Guedes   +4 more
doaj   +1 more source

Reciprocal Recurrent Selection between Synthetic Multi Species Populations (RRSSMSP) of Eucalypt Seleção Recorrente Recíproca entre Populações Sintéticas Multi- Espécies (SRR-PSME) de Eucalipto

Pesquisa Florestal Brasileira, 2010
It is proposed a breeding strategy for eucalypt, which congregates in an individual desirable traits belonging to different species and capture the heterosis for growth, stemming from several pair of species of known heterotic behavior.
Marcos Deon Vilela de Resende, Teotônio Francisco de Assis   +1 more
doaj   +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

Hyperspectral wavelength selection for weed discrimination in Eucalyptus saligna using machine learning

Agronomy Journal, Volume 118, Issue 4, July/August 2026.
Abstract Efficient weed management in commercial forestry requires reliable methods for distinguishing crop seedlings from competing vegetation during early plantation establishment. This study aimed to identify spectral wavelength ranges suitable for discriminating weeds from Eucalyptus saligna in young forest plantations.
Pablo Fernandes, Rudiney Soares Pereira, Sally Deborah Pereira da Silva, Roberta Aparecida Fantinel, Norton Borges Júnior, Fernando Coelho Eugenio   +5 more
wiley   +1 more source

QUALIDADE DA CELULOSE KRAFT-ANTRAQUINONA DE Eucalyptus dunnii PLANTADO EM CINCO ESPAÇAMENTOS EM RELAÇÃO AO Eucalyptus grandis E Eucalyptus saligna [PDF]

Ciência Florestal, 1997
Este trabalho analisou o efeito de cinco espaçamentos de Eucalyptus dunnii (3 m x 1 m; 3 m x 1,5 m; 3 m x 2 m; 3 m x 3 m; 3 m x 4 m), para produção de celulose kraft-antraquinona, comparados com Eucalyptus grandis e Eucalyptus saligna (ambos no ...
Maria Cladis Mezzomo da Silva, Edvins Ratnieks, Teotônio Francisco de Assis, Celso Edmundo B. Foelkel, Jorge Vieira Gonzaga, Giovanni Willer Ferreira   +5 more
doaj  

Diet composition of the Red‐billed curassow (Crax blumenbachii) and its role as seed disperser in the Atlantic Forest: conservation insights

Restoration Ecology, Volume 34, Issue 5, July 2026.
Abstract Introduction Forest fragmentation and defaunation are major drivers of biodiversity loss in the Atlantic Forest of Brazil, where 70–90% of tree species depend on animal‐mediated seed dispersal. Reintroduction of large frugivores, such as cracids, is being used to restore species populations and lost ecological functions.
Maria P. M. X. Rufino, Carlos M. M. E. Torres, Peter van der Sleen, Lausanne S. de Almeida, Fabiano R. de Melo, Kesleyane P. Camilo, Otávio M. Verly, Walter da Silva Costa, Jacinto M. de Lana, Marielos Peña‐Claros   +9 more
wiley   +1 more source

Multifactorial Screening for Fine‐Scale Selection of CCS Industrial Clusters and Hubs in Brazil

Greenhouse Gases: Science and Technology, Volume 16, Issue 3, Page 364-395, June 2026.
ABSTRACT As Brazil moves toward implementing its decarbonization commitments, carbon capture and storage (CCS) hubs are emerging as a key pathway for large‐scale CO2 abatement in hard‐to‐abate sectors. This paper presents a multifactorial, data‐driven framework to screen and prioritize potential CCS industrial clusters and hubs across Brazilian regions,
Gustavo P. Oliveira, Beatriz R. Almeida, Thiago R. C. Justino, Carlos A. S. Santos, Alex A. Santos, Fabiana Philipi   +5 more
wiley   +1 more source

Growth and antimicrobial activity of lactic acid bacteria from rumen fluid according to energy or nitrogen source Crescimento e atividade antimicrobiana de bactérias ácido-láticas do líquido ruminal de acordo com a fonte de energia ou de compostos nitrogenados

Revista Brasileira de Zootecnia, 2011
The objective of this study was to evaluate the effects of supplementation with different sources of energy and nitrogenous compounds on the in vitro growth and production of bacteriocin of lactic acid bacteria.
Isabela Pena Carvalho de Carvalho, Edenio Detmann, Hilário Cuquetto Mantovani, Mário Fonseca Paulino, Sebastião de Campos Valadares Filho, Viviane Aparecida Carli Costa, Daiany Iris Gomes   +6 more
doaj   +1 more source

PROSPECÇÃO TECNOLÓGICA SOBRE AS COMPOSIÇÕES DE DERIVADOS DE CELULOSE E CELULOSE NA ÁREA MEDICINAL

Cadernos de Prospecção, 2013
Nos últimos anos há grande interesse mundial em novas tecnologias que possibilitem a utilização de produtos com menor impacto ambiental. Composições de derivados de celulose e celulose têm gerado materiais para a área medicinal, entre outras. Este trabalho consiste no monitoramento tecnológico das composições de derivados de celulose e celulose na ...
Junior, Luis Carlos de Souza Ferreira, de Miranda, Cleidiene Souza, José, Nádia Mamede   +2 more
openaire   +2 more sources

Generalist With a Narrow Niche Breadth: Feeding Ecology and Seed Germination Effectiveness of a Large Canid Within a Silvicultural Matrix

Austral Ecology, Volume 51, Issue 6, June 2026.
Diet: The generalist canid exhibits a narrow niche breadth (0.12), consuming native plants (100% frequency) and animals (85%). Birds dominate animal prey (74%), peaking in the dry season, while Solanaceae plants dominate plant food (100%), peaking in the rainy season.
Aline Carneiro Veloso, Arthur Celestino Soares, Ana Elizabeth Iannini Custódio, Ednaldo Carvalho Guimarães, Carine Firmino Carvalho‐Roel   +4 more
wiley   +1 more source