Results 31 to 40 of about 533,335 (186)

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

open access: yesJournal of Fish Biology, EarlyView.
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   +6 more
wiley   +1 more source

Solution for the electric potential distribution produced by sphere-plane electrodes using the method of images

open access: yesRevista Brasileira de Ensino de Física
The solution for the potential distribution between a spherical and planar electrode is briefly reviewed and derived in a simple way using the method of images. An analysis of the convergence of the potential, as a function of the number of image charges
Fernando F. Dall'Agnol   +1 more
doaj   +1 more source

End-User Development (EUD) : desenvolvimento pelo usuário final: conceitos, estratégias e casos de adoção : relatório de pesquisa [PDF]

open access: yes, 2017
Pesquisa realizada com financiamento do Ministério da Ciência, Tecnologia, Inovações e Comunicações, Projeto de Cooperação “Aprimoramento do Framework de Soluções de Tecnologia da Informação”.Ministério da Ciência, Tecnologia, Inovações e ...
Ferreira, Marcelo Herton Pereira   +9 more
core  

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

open access: yesTropical Medicine &International Health, EarlyView.
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

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

open access: yesMathematical 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   +2 more
wiley   +1 more source

Diagnóstico multidimensional em processos da área de mercado:

open access: yesRevista Gestão & Saúde, 2015
O objetivo deste artigo é apresentar um estudo de viabilidade prática de implementação de inovações e melhorias organizacionais que contemplem, simultaneamente, a competitividade da empresa e a qualidade de vida dos trabalhadores.
Taiane Cristiane Becaro   +4 more
doaj  

Bibliography out of the wardrobe: what does Brazilian information science reveals about issues of gender and sexual dissidence?

open access: yesBibliothecae.it, 2021
Objective: Elaboration of a bibliographic repertoire on gender issues and sexual dissidences in Brazilian Information Science from 1972 to 2021. Method: The research is qualitative, exploratory and bibliographical in nature, in which we surveyed and ...
Bruno Almeida dos Santos   +1 more
doaj   +1 more source

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

open access: yesAnnalen 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   +3 more
wiley   +1 more source

A trajetória da biblioteca universitária no Brasil no período de 1901 a 2010

open access: yesEncontros Bibli, 2016
O artigo mostra alguns dos caminhos que o Brasil percorreu na educação superior, especialmente em suas universidades e bibliotecas universitárias. Em 1901 foi elaborada a legislação sobre o funcionamento de bibliotecas ligadas aos institutos de ensino ...
Murilo Bastos da Cunha   +1 more
doaj   +1 more source

Pele negra, algoritmos brancos: informação e racismo nas redes sociotécnicas

open access: yesLiinc em Revista, 2022
O racismo é parte da estrutura fundamental das sociedades capitalistas, característica que também se manifesta na forma como as ferramentas tecnológicas são elaboradas.
Arthur Coelho Bezerra   +1 more
doaj   +1 more source

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