Results 31 to 40 of about 3,601 (130)

A new catfish species of Microcambeva Costa & Bockmann, 1994 (Siluriformes: Trichomycteridae) from southern Brazil, with a redescription of M. ribeirae Costa, Lima & Bizerril, 2004

Journal of Fish Biology, Volume 109, Issue 1, Page 146-164, July 2026.
Abstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
Lucas S. de Medeiros, Igor C. A. Souto‐Santos, Paulo A. Buckup, Juliano Ferrer, Vinicius J. C. Reis, Mario de Pinna, Sergio M. Q. Lima   +6 more
wiley   +1 more source

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

Aquatic 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, Cintia Oliveira Carvalho, Jorge Luiz S. Nunes, Rafaela Maria S. Brito, Marcelo Ândrade, Carolina Oliveira Magalhães, Fabrício dos Anjos Santa Rosa, Audun Schrøder‐Nielsen, Hugo J. de Boer, Quentin Mauvisseau, Jonathan S. Ready, João Bráullio L. Sales   +11 more
wiley   +1 more source

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

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

Avaliação da interação em fóruns institucionais

Biblios
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, Diego José Macêdo, Milton Shintaku   +2 more
doaj   +1 more source

Brazil's Public Administration and the Challenge of New Democracies: Promoting Social Inclusion

Public Administration Review, Volume 86, Issue 2, Page 548-563, March/April 2026.
ABSTRACT Brazil's public administration (PA) has sought to strengthen democratic governance through an emphasis on social inclusion. Since democratization in 1988, reforms have aimed to address entrenched inequalities along with decentralization and professionalism spurring innovations in social inclusion.
Evan M. Berman, Eduardo Grin, Gabriela Lotta, Fernando L. Abrucio, Lauro Gonzalez, Maira Gabriela Santos de Souza, Yasmim Marques de Melo, Jaedson Gomes dos Santos   +7 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  

Assessment of Methacrylated Poly(ε‐Caprolactone)/Silanized Hydroxyapatite Composite Resin for High‐Resolution Scaffolds via Vat Photopolymerization 3D Printing

Polymers for Advanced Technologies, Volume 37, Issue 2, February 2026.
ABSTRACT High‐resolution, biocompatible scaffolds are essential for reproducible tissue engineering and remain challenging to fabricate with vat photopolymerization due to cure‐depth control and limited bioactivity of neat polymers. This work investigated the mechanical, surface, and biological properties, as well as the high‐resolution 3D printability,
Thiago Nunes Palhares, João Fiore Parreira Lovo, Gabriela Costa Rodrigues, Alessandra Lima Poli, Marcos Antonio Sabino, Silvia Rachel de Albuquerque Santos, Sara Gemini‐Piperni, Renato Rozental, Carla Cristina Schmitt   +8 more
wiley   +1 more source

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

Journal of Fish Biology, Volume 108, Issue 2, Page 648-668, February 2026.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert, João C. Maicrovicz, Daniel R. Blanco, Denise Lange, Carla S. Pavanelli, Heleno Brandão   +5 more
wiley   +1 more source