Results 101 to 110 of about 213,937 (224)

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel   +13 more
wiley   +1 more source

The ‘National Security Strategy of the USA’ and Brazilian military thought: Imagining the near future [PDF]

open access: yes, 2007
This paper examines the US National Security Strategies, 2002 and 2006, with a view to understanding the impact that some of their elements, including the doctrine of pre-emptive war, may have on Brazilian military thought.
Zirker, Daniel
core   +1 more source

Oxidative Stress Biomarkers in the Shrimp Macrobrachium amazonicum (Heller, 1862): Assessment in an Environmental Preservation Area in the Brazilian Amazon

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Anthropogenic activities generate a significant amount of pollutants that are released into the environment, causing physiological and ecological disturbances. Among the xenobiotics present in aquatic ecosystems, numerous chemical and organic compounds have oxidative potential or are metabolized through oxidative processes, which may amplify ...
Natália Eduarda da Silva   +6 more
wiley   +1 more source

Changes in Family Production Systems upon the Implementation of Palm Oil in Eastern Amazon

open access: yesDesenvolvimento e Meio Ambiente, 2017
In this article, we analyze the changes in family production systems throughout their productive paths, emphasizing the changes occurred due to the implementation of palm oil in these systems in Eastern Amazon.
Edfranklin Moreira da Silva   +1 more
doaj   +1 more source

Defining a US defence diplomacy for Brazil at the beginning of the century [PDF]

open access: yes, 2009
At the beginning of the 1990s, the US military was apparently considered to be a significant threat by the Brazilian Armed Forces. Other military establishments in the Hemisphere likewise expressed a lack of confidence, and even a sense of fear ...
Zirker, Daniel
core   +1 more source

Bee community assembly is regulated by functional traits in pristine tropical forest environments

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Understanding the drivers of bee beta diversity across pristine environments in the Amazon is critical for ensuring biodiversity conservation, restoration, sustainable land use planning and economic development.
Rafael Cabral Borges   +7 more
wiley   +1 more source

Repeated trends in altitudinal gradients of diversity: How habitat filtering and biotic interactions structure ecological communities

open access: yesJournal of Animal Ecology, EarlyView.
This study reveals that tropical butterfly communities show remarkably consistent elevational patterns of diversity and phylogenetic structure across regions with contrasting evolutionary histories, demonstrating how regional species pools and local ecological factors jointly shape biodiversity along altitudinal gradients.
Raphaël Fougeray   +10 more
wiley   +1 more source

Responsible research and innovation: função social das bibliotecas como potencializadoras da inovação no contexto Amazônico

open access: yesCiência da Informação, 2020
Encontra-se inserido no contexto das áreas de Inovação e Ciência da Informação. Analisa o conceito de Responsible Research and Innovation (RRI), que ficou conhecido na Europa a partir do Horizon 2020, uma estratégia para alavancar a pesquisa e inovação ...
Layde Dayelle dos Santos Queiroz
doaj  

The birth of an earth being: ‘Rights of nature’ in Brazilian Amazonia and elsewhere Naissance d'un être de la terre : « droits de la nature » en Amazonie brésilienne et ailleurs

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
In June 2023, the Laje River, located in the traditional territory of the Wari’ Indigenous people in Rondônia, Brazil, was declared a legal entity, an earth being, with rights, following the co‐ordinated action of an indigenous councillor and non‐indigenous activists.
Aparecida Vilaça
wiley   +1 more source

The Environmental Boom in the Media: An Analysis of the News on Deforestations and Forest Fires in the Amazon During the Last Decades

open access: yesDesenvolvimento e Meio Ambiente, 2008
This article presents the conclusions of research (PARD/UFPA/CNPq, 2006) that analyzed the significantrole of the press in exposing environmental issues in the past decades (1975-2002), with emphasis ondeforestations and forest fires in the Amazon.
Luciana Miranda Costa
doaj   +1 more source

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