Results 41 to 50 of about 6,472 (140)

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

Journal 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, Patrícia Teixeira Costa, Lucas Silva Mello, Luiz Felipe Azevedo Marques, Vinícius Santiago dos Santos, Fernando Augusto Lima Marson   +5 more
wiley   +1 more source

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

Encontros 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, Janinne Barcelos, Ronaldo Araújo, Ronnie Fagundes de Brito   +3 more
doaj   +1 more source

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

Journal 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, Ana Paula B. Moreira, Taiara Aguiar Caires, Márcio M. B. Tenório, Rodrigo Leão de Moura, Paulo Sergio Salomon   +5 more
wiley   +1 more source

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

Ciência 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, Raphael Faria Vilas Boas, Juliana Araujo Gomes de Sousa   +2 more
doaj  

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

Tropical 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, Jorg Heukelbach, Eliana Amorim de Souza, Carmelita Ribeiro Filha Coriolano, Elaine Silva Nascimento Andrade, Aymée Medeiros da Rocha, José Alexandre Menezes da Silva, Carlos Dornels Freire de Souza, Juliana Maria Cavalcante Ribeiro Ramos, Alberto Novaes Ramos Jr   +9 more
wiley   +1 more source

Hybrid Reaction–Diffusion Epidemic Models: Dynamics and Emergence of Oscillations

Mathematical Methods in the Applied Sciences, Volume 49, Issue 5, Page 4074-4095, 30 March 2026.
ABSTRACT In this paper, we construct a hybrid epidemic mathematical model based on a reaction–diffusion system of the SIR (susceptible‐infected‐recovered) type. This model integrates the impact of random factors on the transmission rate of infectious diseases, represented by a probabilistic process acting at discrete time steps.
Asmae Tajani, Cristiana J. Silva, Guillaume Cantin   +2 more
wiley   +1 more source

Entanglement Distribution in Quantum Networks Via Swapping of Partially Entangled Pure States

Annalen der Physik, Volume 538, Issue 3, March 2026.
The manuscript establishes a unified theoretical framework for entanglement swapping with partially entangled pure states across diverse quantum‐network topologies. By deriving closed‐form expressions for the full output ensembles and success probabilities, we show that successive swapping operations generate a binomially distributed spectrum of ...
Henrique Guerra, Tailan S. Sarubi, Rafael Chaves, Jonas Maziero   +3 more
wiley   +1 more source

A produção científica sobre preservação de websites em língua portuguesa

Encontros 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, Kelen Cândida Vieira Bomfim   +1 more
doaj   +1 more source

Identification and Structural Elucidation of a New Synthetic Cannabinoid, MDMB‐5′Br‐PINACA, in Seized Herbal Materials

Drug Testing and Analysis, Volume 18, Issue 3, Page 334-340, March 2026.
MDMB‐5Br‐PINACA, a novel synthetic cannabinoid, was identified and structurally characterized in seized herbal products using GC‐MS, LC‐HRMS, and NMR. The discovery underscores ongoing diversification of SCs and the need for vigilant surveillance.
Alexandre Barcia de Godoi, Lucas André Zeoly, Rafael Lanaro, Ingrid Simões Oliveira, Mariana Cepollaro Diana, Mauricio Yonamine, Jose Luiz Costa   +6 more
wiley   +1 more source

Synergizing scientific and local knowledge for ecosystem services assessments: A case study in northern Portugal

People and Nature, Volume 8, Issue 3, Page 633-649, March 2026.
Abstract Integrating scientific and local ecological knowledge on ecosystem services (ES) is essential for effective and inclusive environmental management. Such an integration strengthens societal engagement, supports policy implementation and helps reduce sectoral conflicts across marine sectors.
Jacinto Cunha, Edna Cabecinha, Sebastian Villasante, Stefano Balbi, Michael Elliott, Sandra Ramos   +5 more
wiley   +1 more source