Results 21 to 30 of about 37,859 (155)

O cooperativismo como instrumento para a autonomia de comunidades rurais da Amazônia: a experiência dos agricultores extrativistas do municipio de Lábrea, AM

Boletín de la Asociación Internacional de Derecho Cooperativo, 2019
O presente artigo trata da organização das comunidades extrativistas do município de Lábrea, no Amazonas, Brasil, e de como a cooperativa foi essencial para a superação dos desafios socioeconômicos em que vivem os extrativistas da Amazônia. A coleta das
Lindomar De Jesus de Sousa Silva, José Olenilson Costa Pinheiro, Endrio Morais dos Santos, Jemima Ismael da Costa, Gilmar Antonio Meneghetti   +4 more
doaj   +1 more source

In vitro establishment and multiplication of Echynochloa polystachya

Bioscience Journal, 2022
The objective of this work was to carry out the in vitro establishment of Echynochloa polystachya aiming at obtaining a micropropagation protocol for works involving the selection of superior genotypes and the cultivation of the species. E.
Emanuel Orestes da Silveira, Ricardo Lopes, Filipe Almendagna Rodrigues, Marcelo Domingues Martins Raizer, Fabio Jacobs Dias, Pamela Keiko Harada, Daniele Simões Araújo, Moacir Pasqual, José Magno Queiroz Luz, Maria Teresa Gomes Lopes   +9 more
doaj   +1 more source

A sustentabilidade da habitação do seringueiro amazônico

Pós: Revista do Programa de Pós-Graduação em Arquitetura e Urbanismo da FAUUSP, 2010
Este artigo, com área de concentração em tecnologia das construções, propõe-se a pesquisar e identificar a sustentabilidade da casa do seringueiro amazônico, construída nos seringais acreanos, a partir do final do século 19 e segunda metade do século 20.
Valdeci Candido de Lima
doaj   +3 more sources

Polistes canadensis (Linnaeus, 1758) (Vespidae: Polistinae) in the Western Amazon: a Potential Biological Control Agent

Sociobiology, 2017
Wasps of the genus Polistes (Vespidae: Polistinae) are eusocial, considered valuable biological control agents. The objective of this work was to determine the resources collected by Polistes canadensis wasps, evaluate their performance and importance as
Matheus Montefusco Oliveira, Flávia Batista Gomes, Alexandre Somavilla, Cristiane Krug   +3 more
doaj   +1 more source

Biochemical and Biological Profile of Parotoid Secretion of the Amazonian Rhinella marina (Anura: Bufonidae)

BioMed Research International, Volume 2019, Issue 1, 2019., 2019
Skin secretions of frogs have a high chemical complexity. They have diverse types of biomolecules, such as proteins, peptides, biogenic amines, and alkaloids. These compounds protect amphibians’ skin against growth of bacteria, fungi, and protozoa and participate in defense system against attack from predators.
Daniel S. S. de Medeiros, Tiago B. Rego, Ana P. de A. dos Santos, Adriana S. Pontes, Leandro S. Moreira-Dill, Najla B. Matos, Juliana P. Zuliani, Rodrigo G. Stábeli, Carolina B. G. Teles, Andreimar M. Soares, Angelo R. de M. Sperotto, Dinara J. Moura, Jenifer Saffi, Cleópatra Alves da Silva Caldeira, Daniel Carvalho Pimenta, Leonardo A. Calderon, Ji-Fu Wei   +16 more
wiley   +1 more source

Sampling and TDR probe insertion in the determination of the volumetric soil water content [PDF]

Revista Brasileira de Ciência do Solo, 2003
Volumetric soil water content (theta) can be evaluated in the field by direct or indirect methods. Among the direct, the gravimetric method is regarded as highly reliable and thus often preferred.
W. G. Teixeira, G. Schroth, J. D. Marques, Bernd Huwe   +3 more
doaj   +1 more source

Heat treatment and germination of seeds of interspecific hybrid between American oil palm (Elaeis oleifera (H.B.K) Cortes) and African oil palm (Elaeis guineensis Jacq.)

Journal of Seed Science
The oil palm (E. guineensis ) is the African origin and the world's leading source of vegetable oil. The interspecific hybridization of the African oil palm (E. guineensis) with American oil palm (E.
Wanderlei Antônio Alves Lima, Ricardo Lopes, Márcia Green, Raimundo Nonato Vieira Cunha, Samuel Campos Abreu, Alex Queiroz Cysne   +5 more
doaj   +1 more source

Produção de açafrão em função de acessos e do peso de rizomas-semente

Revista Brasileira de Plantas Medicinais, 2014
O açafrão-da-terra (Curcuma longa L.) é originário do sudeste asiático e subcontinente indiano. É uma herbácea de caule subterrâneo, alaranjado, com vários rizomas secundários aproveitados na indústria alimentícia e farmacêutica devido às características
R.F. Berni, F.C.M. Chaves, J.B. Pinheiro, A.P.A. Vaz   +3 more
doaj   +1 more source

Arrabidaea chica Hexanic Extract Induces Mitochondrion Damage and Peptidase Inhibition on Leishmania spp.

BioMed Research International, Volume 2014, Issue 1, 2014., 2014
Currently available leishmaniasis treatments are limited due to severe side effects. Arrabidaea chica is a medicinal plant used in Brazil against several diseases. In this study, we investigated the effects of 5 fractions obtained from the crude hexanic extract of A. chica against Leishmania amazonensis and L. infantum, as well as on the interaction of
Igor A. Rodrigues, Mariana M. B. Azevedo, Francisco C. M. Chaves, Celuta S. Alviano, Daniela S. Alviano, Alane B. Vermelho, José Carlos Tavares Carvalho   +6 more
wiley   +1 more source

Interaction between Bees and the Tristylous Flowers of Oxalis cytisoides Mart. & Zucc. (Oxalidaceae)

Psyche: A Journal of Entomology, Volume 2012, Issue 1, 2012., 2012
The interaction of bees with the tristylous flowers of Oxalis cytisoides Mart. & Zucc. (Oxalidaceae) was evaluated. The study was conducted in a semideciduous forest at the Fritz Plaumann State Park in Concórdia, Santa Catarina state. Two Oxalis cytisoides aggregations were found and the flower visiting bees were observed.
Cristiane Krug, Cláudia Inês Silva, Isabel Alves-dos-Santos, Kleber Del-Claro   +3 more
wiley   +1 more source