Results 41 to 50 of about 6,510 (140)

Avaliação da interação em fóruns institucionais

open access: yesBiblios
Objetivo. Este estudo analisa a evolução das interações digitais no Fórum do Instituto Brasileiro de Informação em Ciência e Tecnologia (Ibict), destacando sua utilidade como ferramenta de compartilhamento de conhecimento e resolução colaborativa de ...
Bernardo Dionízio Vechi   +2 more
doaj   +1 more source

Mega-Periódicos e altmetria: aproximações entre novas formas de publicação e de avaliação de impacto de resultados de pesquisa

open access: yesEncontros Bibli, 2019
A Internet e os recursos da web têm se constituído ferramentas essenciais para comunicação e disseminação de informações científicas e feito surgir novas formas de publicação e de avaliação do impacto de resultados de pesquisa.
Milton Shintaku   +3 more
doaj   +1 more source

A new endemic pearl cichlid of the ‘Geophagus’ brasiliensis (Cichliformes: Cichlidae) species group from the Piranga River, upper Doce River basin, southeastern Brazil

open access: yesJournal of Fish Biology, Volume 108, Issue 6, Page 1687-1700, June 2026.
Abstract A new species of pearl cichlid of the ‘Geophagus’ brasiliensis species group, endemic to the Piranga River, a major tributary of the upper Doce River basin in the state of Minas Gerais, southeastern Brazil, is herein described. The new species is delimited using an integrative approach, with molecular‐based species delimitation methods coupled
Cidimar E. de Assis   +7 more
wiley   +1 more source

Representatividade da produção científica brasileira por região: fontes coletadas pelo Portal oasisbr

open access: yesCiência da Informação, 2020
A pesquisa tem como objetivo analisar a proporção existente entre a população de cada região versus a origem geográfica das fontes coletadas pelo Portal brasileiro de publicações científicas em acesso aberto (Portal oasisbr).
Fhillipe de Freitas Campos   +2 more
doaj  

Shifting Seas, Changing Diets: Evidence of Temporal Dietary Shifts in Marine Megafauna in Southern Brazil (2017–2023)

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Understanding the dietary dynamics of marine megafauna is essential for interpreting ecological interactions and assessing environmental changes in marine ecosystems. We analysed temporal trends in the diets of eight megafaunal species, comprising marine mammals, seabirds, and sea turtles.
Joao Bosco Gusmao   +2 more
wiley   +1 more source

Beyond Hard Parts: Metabarcoding Advances Dietary Resolution in Threatened Amazonian Elasmobranchs

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Elasmobranchs are highly vulnerable and are considered one of the most threatened vertebrates worldwide. Insights into diet can improve conservation measures. The bias of traditional morphological methods towards taxa with distinctive hard parts makes metabarcoding analysis a complementary tool to assess diet composition. Here, we analysed the
Alan Érik S. Rodrigues   +11 more
wiley   +1 more source

Vaccination Coverage Against Coronavirus Disease 2019 (COVID‐19) in Brazil's Indigenous Population

open access: yesJournal of Medical Virology, Volume 98, Issue 5, May 2026.
ABSTRACT Indigenous populations in Brazil were prioritized for coronavirus disease 2019 (COVID‐19) vaccination due to their increased vulnerability. The aim of the study was to describe COVID‐19 vaccination coverage among Indigenous population across Brazilian regions and Special Indigenous Health Districts (DSEIs; acronym for Distritos Sanitários ...
Nathália Mariana Santos Sansone   +5 more
wiley   +1 more source

Revealing novelty from the southwestern Atlantic, Yemanjia gen. nov. and Olokunococcus gen. nov. from the coral cyanobiome of the Abrolhos Bank

open access: yesJournal of Phycology, Volume 62, Issue 2, Page 533-555, April 2026.
Abstract Cyanobacteria comprise over 6000 species and inhabit diverse environments, including marine invertebrates such as sponges and corals. High‐throughput sequencing has indicated an abundance of Cyanobacteria communities in these hosts, yet taxonomic resolution has remained low below the phylum level.
Yuri Ricardo Andrade Aiube   +5 more
wiley   +1 more source

A produção científica sobre preservação de websites em língua portuguesa

open access: yesEncontros Bibli, 2019
O presente artigo apresenta uma análise quantitativa e qualitativa da produção científica sobre a temática “Preservação de websites” e “Arquivamento da web”, com a aplicação da metodologia de seleção e análise de bibliografias, sendo estas, parte ...
Juliana Pinheiro Farias   +1 more
doaj   +1 more source

Persistent and Emerging High‐Risk Clusters of Leprosy Detection in Brazil: A Nationwide Spatiotemporal Analysis, 2001–2023

open access: yesTropical Medicine &International Health, Volume 31, Issue 4, Page 532-546, April 2026.
ABSTRACT Background Brazil accounts for a substantial share of the global leprosy burden, with persistent high‐risk areas and marked spatial inequalities in case detection. Identifying spatiotemporal clusters of transmission is crucial for targeting surveillance and control efforts.
Anderson Fuentes Ferreira   +9 more
wiley   +1 more source

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