Results 31 to 40 of about 675 (156)

Preparo de Itens de Ensaio de Proficiência em Matriz Queijo para a Pesquisa de Salmonella spp. | Preparation of Proficienc􀀁 Test Items for Salmonella spp. Detection in Cheese Matrix

open access: yesVigilância Sanitária em Debate: Sociedade, Ciência & Tecnologia, 2015
A participação de laboratórios analíticos em ensaio de proficiência permite a verificação da confiabilidade dos resultados gerados nas análises de controle da qualidade. O objetivo deste estudo foi produzir um lote de itens de ensaio (IE) a ser utilizado em ensaio de proficiência (EP) para pesquisa de Salmonella spp. em matriz queijo.
Juliana de Castro Beltrão da Costa   +9 more
openaire   +1 more source

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

Projeto de uma bancada de ensaio para amortecedores hidráulicos telescópicos [PDF]

open access: yes, 2020
In this paper, it was proposed the development of a test bench project for telescopic hydraulic shock absorbers, which is able to measure the damping ratio.
Fernandes, Lucas Henrique Torres
core  

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

Instrumentos Financeiros Compostos e Contratos Híbridos: um Ensaio Normativo sobre os Efeitos da Regulação Contábil e Tributária no Brasil

open access: yes, 2023
Compound financial instruments (FI) and hybrid contracts have generated much controversy in accounting and legal matters. In Brazil, companies registered with the CVM, which used these instruments and classified them in shareholders’ equity, had their ...
da Costa Junior, Jorge Vieira
core   +1 more source

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

Desenvolvimento de sistema para medir a resistência de enrolamento em motores de compressores energizados [PDF]

open access: yes, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Metrologia Científica e Industrial.A competitividade acirrada no mercado de compressores tem sido responsável pela expressiva injeção de ...
Pacheco, Antonio Luiz Schalata
core  

Teste Adaptativo Computadorizado Multidimensional com propósitos educacionais: princípios e métodos

open access: yes, 2015
O Teste Adaptativo Computadorizado Multidimensional (MCAT), baseado na Teoria de Resposta ao Item Multidimensional (MIRT), considera as múltiplas habilidades do examinado em testes educacionais.
Piton-Gonçalves, Jean   +1 more
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

A estrutura temporal das taxas de juros no Brasil [PDF]

open access: yes, 2005
TCC (graduação) - Universidade Federal de Santa Catarina. Centro Sócio-Econômico. Economia.Este trabalho examina as principais características da Estrutura Temporal das Taxas de Juros no Brasil.
Carvalho Junior, José Lemos de
core  

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