Results 21 to 30 of about 8,736 (234)

Screw‐Dislocation‐Engineered Quantum Dot: Geometry‐Tunable Nonlinear Optics, Orbital Qubit Addressability, and Torsion Metrology

Annalen der Physik, Volume 538, Issue 2, February 2026.
A uniform torsion field—representing a controlled density of parallel screw dislocations—confines a single electron into a geometry‐defined quantum dot. In a perpendicular magnetic field, an Aharonov–Bohm flux breaks the m↔−m$m \leftrightarrow -m$ symmetry and yields a flux‐ and torsion‐tunable angular pseudospin (m=±1)$(m = \pm 1)$ with asymmetric ...
Edilberto O. Silva
wiley   +1 more source

Associação da proteína c-reativa com fatores de risco cardiovascular, função pulmonar e qualidade de vida em adultos jovens

Revista Contexto & Saúde
Objetivo: Associar a proteína c-reativa ultrassensível (PCR-US) com fatores de risco cardiovasculares, função pulmonar e qualidade de vida. Métodos: Foram realizadas medidas para o cálculo do índice de massa corporal (IMC), mensurada a circunferência de
Natalia Silva Bueno, Pedro Henrique de Almeida Silva, Ana Julia Ribeiro Gomes, Carolina Silva Carvalho, Eron Matheus Leite Moreira, Sarah Rhaquel Rodrigues Oliveira, Viviane Soares   +6 more
doaj   +1 more source

CENTRO HISTÓRICO DE DRACENA: IDENTIDADE E SALVAGUARDA

Colloquium Humanarum, 2014
This article is about the permanence of the initial landscapes in the historic center of Dracena identifying and mapping the set of significant architectural and urban planning, both historical and cultural elements that characterize its landscape ...
Luiza Sobhie Muñoz, Hélio Hirao
doaj   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

Population Ecology, Volume 68, Issue 1, January 2026.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva, João Hemerson de Sousa, Adriana Josefa da Rocha, Manuella Feitosa Leal, Lucas Ariel de Sousa Aguiar, Tamaris Gimenez Pinheiro, Edson Lourenço da Silva   +6 more
wiley   +1 more source

Habitat Structure Shapes Mollusc Assemblages in an Urban Semiarid River: Implications for Conservation and Public Health

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 1, January 2026.
ABSTRACT Fine‐scale environmental drivers shape freshwater mollusc assemblages in urban semiarid rivers. We examined how substrate composition and water chemistry influence mollusc richness and abundance along a polluted stretch of a river in the Brazilian semiarid region. Surveys at five sites recorded 2479 individuals.
Lucas Ariel Sousa Aguiar, Lucas Henrique Sousa Silva, Manuella Feitosa Leal, Edson Lourenço Silva, Tamaris Gimenez Pinheiro   +4 more
wiley   +1 more source

Skeletal bone density is associated with periodontitis: systematic review and metanalysis

Brazilian Dental Science
Objective: This study aimed to evaluate whether low skeletal bone density conditions, such as osteoporosis (OPR), osteopenia (OPN) and low bone mineral density (low BMD) are associated with periodontitis.
Fernando Kloeckner, Otto Ferraz Fernandes Barros, Jaíne Cocco Uliana, Karla Zanini Kantorski   +3 more
doaj   +1 more source

ESPORTE COMO SUBSÍDIO AO ENSINO DE FÍSICA: RETRATO DAS PESQUISAS BRASILEIRAS

Góndola, Enseñanza y Aprendizaje de las Ciencias, 2016
O presente trabalho tem por objetivo identificar, na produção científica brasileira, a presença da temática “esporte” no ensino de Física. De forma mais específica, o estudo analisa artigos de periódicos nacionais de modo a verificar como o esporte tem ...
Cleci Teresinha Werner da Rosa, Juliane Bison, Luiz Eduardo Schardong Spalding   +2 more
doaj   +1 more source

A EDUCAÇÃO DE JOVENS E ADULTOS EM TEMPOS DE PANDEMIA: CONTRADIÇÕES E RACIONALIDADES EM EVIDÊNCIA

Revista Interinstitucional Artes de Educar, 2020
Este artigo tem como objetivo problematizar a emergência de acontecimentos e discursos impostos pela pandemia de Covid-19, que condicionam os sujeitos da educação de jovens e adultos a (outros) mecanismos de exclusão.
Dayana Oliveira Arruda, Antônio Carlos do Nascimento Osório, Sara Santana Armoa da Silva   +2 more
doaj   +1 more source

Potential geographic displacement of Chagas disease vectors under climate change

Medical and Veterinary Entomology, Volume 39, Issue 4, Page 709-717, December 2025.
As a result of modelling the potential distribution of 55 triatomine species in the Neotropical region, with climate change projected for up to 2050, we found no significant changes. With climate change projected for up to 2080 in the Neotropical region, we see a significant potential for the migration of 55 species of triatomines towards the Amazon ...
Leandro Schlemmer Brasil, Divino Vicente Silvério, José Orlando de Almeida Silva, Walter Souza Santos, Leonardo Viana de Melo, Leandro Juen, Filipe Machado França, Thiago Bernardi Vieira   +7 more
wiley   +1 more source

Physicochemical and Toxicity Study of Naringin‐Loaded Chitosan Nanocapsules

Journal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 113, Issue 11, November 2025.
ABSTRACT Naringin is a natural compound with potential for health improvement due to its antioxidant and anti‐inflammatory properties, but its low dissolution rates and bioavailability limit its medical applications. Nanosized materials have an increased surface area and can protect compounds, enhancing their bioavailability and improving drug delivery.
Bruno Silveira Levy, Marcell Valandro Soares, Camila Medianeira da Silva D'Ávila, Félix Alexandre Antunes Soares, Patrícia Gomes, Francine Carla Cadoná, Ana Júlia Figueiró Dalcin, Carina Rodrigues Boeck   +7 more
wiley   +1 more source