Results 51 to 60 of about 770,997 (175)

Ovine feed intake, digestibility, and nitrogen balance in feeds containing different amounts of cupuaçu meal

open access: yesSemina: Ciências Agrárias, 2015
Twenty neutered male sheep were subjected to 26 days of a metabolic assay at Embrapa Eastern Amazon in Belém, PA, Brazil (01°26’02”S and 48°26’21”W; altitude 8 m).
Laurena Silva Rodrigues   +8 more
doaj   +1 more source

Patterns of Tree Species Abundance and Diversity on Urban Sidewalks in Macapá, Amapá, Brazil

open access: yesEcological Research, Volume 41, Issue 2, March 2026.
This study presents the first systematic inventory of street trees in Macapá, Northeastern Brazilian Amazon. Results reveal a dominance of exotic and fruit‐bearing species, low tree density, and a replacement of large canopy trees by smaller ones, indicating potential losses in ecosystem services and the need for more biodiversity‐focused afforestation
Lorena Antunes Jimenez   +8 more
wiley   +1 more source

Influence of the extraction method on the yield and quality of bacaba palm oil from southwestern Amazonia

open access: yesGrasas y Aceites
This study evaluated the extraction, yield and physicochemical quality of the oil extracted from the fruit mesocarp of the bacaba palm using the artisanal, mechanical pressing and artisanal reheating methods.
V.S. Álvares   +4 more
doaj   +1 more source

Study on the population structure of the paradoxical frog, Pseudis bolbodactyla (Amphibia: Anura: Hylidae), using natural markings for individual identification

open access: yesZoologia (Curitiba), 2013
The goal of this study was to assess the population structure of Pseudis bolbodactyla Lutz, 1925 using natural markings to identify individuals. Recruitment, survival, and population size estimations were obtained using the Jolly-Seber stochastic method.
Werther P. Ramalho   +4 more
doaj   +1 more source

Copaiba Oil–Resin Reduces the Alveolar Bone Damage Triggered by Apical Periodontitis in Rats

open access: yesInternational Endodontic Journal, Volume 59, Issue 3, Page 511-523, March 2026.
ABSTRACT Aim This study aimed to investigate the effects of copaiba oil–resin on induced apical periodontitis in rats. Methodology A total of 24 male Wistar rats were divided equally into three groups (eight animals each): control (C), apical periodontitis (AP) and apical periodontitis with copaiba administration (AP + COP).
Rayssa Maitê Farias Nazário   +11 more
wiley   +1 more source

Os ‘lugares’ da Amazônia nas Relações Internacionais: (Re)pensando as RI a partir do Encontro Amazônia Centro do Mundo

open access: yesMonções, 2020
No artigo, propõe-se um duplo objetivo. De um lado, questiona-se “quais os lugares da Amazônia nos estudos de RI no Brasil?”. De outro, inquirimos sobre o potencial de repensar pressupostos da disciplina a partir de um evento recente transcorrido na ...
Lucas Duarte Guerra
doaj   +1 more source

Local knowledge enhances the sustainability of interconnected fisheries

open access: yesJournal of Applied Ecology, Volume 63, Issue 1, January 2026.
Our modelling approach allows managers to compare alternative conservation strategies under different socio‐ecological scenarios, highlighting trade‐offs and guiding investment of effort and resources. While immediately valuable for pirarucu management in the Middle Juruá, the framework scales across tiers of applicability, each requiring progressively
Carine Emer   +4 more
wiley   +1 more source

Políticas de Estado e o grande capital na Amazônia: o caso da mineração no Pará [PDF]

open access: yes, 2008
TCC (graduação) - Universidade Federal de Santa Catarina. Centro Sócio-Econômico. Economia.O Estado brasileiro teve papel crucial na penetração do grande capital na região amazônica.
Oliveira, Clariana Pinto
core  

Watching Radical Geography: Spaces and Practices of Authoritarian Surveillance in ‘Democratic’ and ‘Dictatorial’ Brazil

open access: yesAntipode, Volume 58, Issue 1, January 2026.
ABSTRACT This paper addresses stories of surveillance of Brazilian critical/radical geographers, drawing on innovative sources. That is, the folders and reports through which the political police and related institutions watched critical and radical scholars during the 20th century in all Brazilian states and abroad, under both ‘dictatorial’ and ...
Federico Ferretti, Guilherme Ribeiro
wiley   +1 more source

Behind the Myth: Land Sparing and Deforestation in Brazil

open access: yesJournal of Agrarian Change, Volume 26, Issue 1, January 2026.
ABSTRACT The land sparing model, that is, the idea that agricultural intensification fosters environmental protection, lacks empirical validation. In Brazil, sustainable intensification through the conversion of degraded pastures into agricultural areas became a promising and widespread solution to deforestation. We investigate the mismatch between the
Ludivine Eloy   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy