Results 31 to 40 of about 771,441 (174)

Fine‐scale patterns of genetic structure in three species of forest birds reveal dynamic Pleistocene history within an Amazonian interfluve

open access: yesIbis, EarlyView.
Phylogeographical studies of Amazonian birds have revealed large intraspecific diversity, even within recognized areas of endemism. To understand the origin and organization of Amazonian diversity, including the influence of current and historical landscapes, we need to evaluate fine‐scale patterns of genetic diversity in relation to detailed ...
Affonso Henrique Nascimento de Souza   +4 more
wiley   +1 more source

Eating patterns of eutrophic and overweight adolescents in the city of São Paulo, Brazil [PDF]

open access: yes, 2011
OBJECTIVE: This study identified the dietary patterns of normal weight and overweight adolescents. METHODS: This was a cross-sectional study of 239 adolescents from a public school in São Paulo, Brazil; of both sexes, aged 14 to 19 years.
Bracco, Mario Maia   +3 more
core   +2 more sources

Abiotic drivers of co‐occurrence and diversity patterns of Calopterygidae species in Amazonian protected freshwaters

open access: yesEcological Entomology, Volume 51, Issue 2, Page 235-249, April 2026.
Species co‐occurrences rely on their ability to explore similar or distinct available resources, and possible niche overlap can prevent their presence and establishment in a given site Damselflies of the Calopterygidae family demonstrated negative co‐occurrences in streams inside and outside PAs, highlighting that their ecological similarity is ...
Joás Silva Brito   +13 more
wiley   +1 more source

Análise dos padrões de lançamento de efluentes em corpos hídricos e de reúso de águas residuárias de diversos estados do Brasil [PDF]

open access: yesRevista DAE, 2019
O padrão de lançamento de efluentes em corpos hídricos é uma ferramenta que, juntamente com o padrão de qualidade dos corpos receptores e com o padrão de qualidade de águas residuárias para reúso, visa à preservação e conservação de fontes potáveis de ...
Naassom Wagner Sales Morais   +1 more
doaj   +1 more source

How much sampling is enough? Four decades of understorey bird mist‐netting across Amazonia define the minimum effort to uncover species assemblage structure

open access: yesIbis, Volume 168, Issue 2, Page 571-587, April 2026.
Mist‐net sampling comprises a key methodological component of assemblage‐wide avifaunal studies, particularly in the understorey of closed‐canopy tropical forests. To investigate mist‐net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan‐Amazon.
Pilar L. Maia‐Braga   +14 more
wiley   +1 more source

Topologia e tipologia, a parcela gótica

open access: yesRevista de Morfologia Urbana, 2020
O conceito de topologia encontra-se perfeitamente definido “estuda certas propriedades das figuras geométricas, entre elas estão aquelas que não variam quando as figuras são deformadas”, enquanto a tipologia tem uma acepción bem mais ampla e indefinida: “
Jesús Conde-García
doaj  

A concordância de número no português brasileiro: uma análise formal no quadro na gramática léxico-funcional

open access: yesFórum Linguístico, 2023
Neste artigo, proponho uma análise e descrição formal da concordância nominal e verbal de número no português brasileiro (PB). A formalização permite em uma mesma gramática computacional a análise de padrões de concordância das variedades populares e ...
Jessé Mourão
doaj   +1 more source

Generalização de padrõe: um estudo no 5º ano de escolaridade [PDF]

open access: yes, 2008
Esta comunicação visa dar a conhecer resultados de um estudo sobre o desenvolvimento de processos de generalização de padrões, no contexto da realização de uma proposta pedagógica com uma turma do 5o ano de escolaridade.
Oliveira, Hélia, Santos, Madalena
core  

Padrões de uso de álcool entre adolescentes brasileiros [PDF]

open access: yes, 2010
OBJECTIVE: To describe patterns of alcohol consumption by adolescents in Brazil. METHOD: From November 2005 to April 2006, a sample composed of 661 subjects aged between 14 to 17 years was rigorously selected in Brazil using a multistage probabilistic ...
Caetano, Raul   +4 more
core   +2 more sources

Seasonal and Within‐Day Variation on Hummingbirds Visits and Dominance Hierarchy in a Brazilian Cerrado Area

open access: yesAustral Ecology, Volume 51, Issue 3, March 2026.
ABSTRACT Plant‐hummingbird interaction networks can be influenced by environmental conditions and resources, which vary seasonally and daily. We aimed to understand how variations in these parameters across these two temporal windows influence patterns of plant‐hummingbird interactions and hummingbirds dominance hierarchies in a Brazilian Cerrado ...
Jeane Lima‐Passos   +3 more
wiley   +1 more source

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