Results 81 to 90 of about 141,735 (219)

Reação álcali-agregado: avaliação do método químico de ensaio [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2010A reação álcali-agregado é conhecida como um problema que vem causando grandes danos às estruturas de ...
Rolim, Paulo Henrique Borba
core  

Antimycobacterial and Nitric Oxide Production Inhibitory Activities of Goyazensolide and Centratherin Isolated From Eremanthus crotonoides by High‐Speed Countercurrent Chromatography

open access: yesChemistry &Biodiversity, Volume 23, Issue 3, March 2026.
ABSTRACT In this study, bioassay‐guided fractionation of the ethanolic extract from Eremanthus crotonoides leaves enabled the isolation of two bioactive sesquiterpene lactones, centratherin and goyazensolide, which were evaluated for their antimycobacterial and anti‐inflammatory properties.
Natalie Giovanna da Rocha Ximenes   +7 more
wiley   +1 more source

Evidences That Host Genetic Background More Than the Environment Shapes the Microbiota of the Snail Bulinus truncatus, an Intermediate Host of Schistosoma Species

open access: yesMolecular Ecology, Volume 35, Issue 6, March 2026.
ABSTRACT Microbiota have emerged as fundamental regulators of host physiology, shaping both ecological interactions and evolutionary trajectories. Yet, the determinants of microbiota diversity and structure in wild populations—particularly the respective roles of host genetics and environmental context—are still poorly understood.
Mathilde J. Jaquet   +9 more
wiley   +1 more source

Capa

open access: yes, 2021
Thiago Lacaz é designer gráfico com especialização pela University of Reading, Reino Unido. Patrícia Osses é professora no curso de Artes Visuais da Universidade Federal de Uberlândia.Capa concebida pelo designer Thiago Lacaz, que também desenhou o miolo,
Lacaz, Thiago   +2 more
core  

Biochemical Responses of Anopheles spp. Larvae to a Novel Brazilian BR101 Bacillus thuringiensis var. israelensis Formulation: Oxidative Stress, Detoxification Enzymes, and Safety for Nontarget Notonectidae and Gerridae Aquatic Insects

open access: yesChemistry &Biodiversity, Volume 23, Issue 2, February 2026.
Bti BR101 exhibits strong larvicidal activity against Anopheles larvae spp., with dose‐dependent mortality and LC50 of 3.13 µg/mL. Bti increases ROS, lipid and protein oxidation, and activates antioxidant enzymes (SOD, CAT, GPx) and detoxification pathways (MFO and esterases), indicating moderate oxidative stress.
Izabel Cristina de Oliveira Bentes   +14 more
wiley   +1 more source

Glória póstuma :: almanaque objeto de estudo / [PDF]

open access: yes, 1999
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão.Análise da revista Almanaque-cadernos de literatura e ensaio, centrada em seus sete primeiros números, publicados pela Editora Brasiliense e organizados ...
Telles, Renata Praça de Souza
core  

Diagnostic Concordance of Two‐ and Three‐Gene SARS‐CoV‐2 Molecular Assays in Cameroon: Implications for Efficient Pandemic Response in Low‐ and Middle‐Income Countries

open access: yesJournal of Clinical Laboratory Analysis, Volume 40, Issue 4, February 2026.
This study assessed the interoperability of DaAn Gene, ThermoFisher, and GeneXpert assays used for COVID‐19 testing in Cameroon. GeneXpert showed higher diagnostic performance over ThermoFisher, with all assays having excellent agreement at high viral loads (CT < 20).
Aurelie Minelle Kengni Ngueko   +32 more
wiley   +1 more source

Eixos (ensaio visual) [PDF]

open access: yes, 2020
Sem resumo (ensaio ...
Cruz, Yhuri
core   +1 more source

Land use gradients drive spatial variation in Lassa fever host communities in the Eastern Province of Sierra Leone

open access: yesJournal of Animal Ecology, Volume 95, Issue 2, Page 296-312, February 2026.
As West Africa urbanises, the risk of Lassa fever may paradoxically decrease. We found the invasive house mouse, a dominant urban species, outcompetes and displaces the primary Lassa virus host. Considering these species interactions is critical for accurately predicting future zoonotic disease patterns.
David Simons   +13 more
wiley   +1 more source

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