Results 61 to 70 of about 135,269 (237)

Lessons from an eradication under multiple constraints of an island rat population of record density

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract Invasive rats threaten island biodiversity, disrupting ecosystems and endangering native species. Although rat eradication has succeeded on many islands, tropical islands present unique management challenges. Strict regulations and financial constraints on some tropical islands further limit proven eradication methods, complicating rodent ...
Tatiane Micheletti   +7 more
wiley   +1 more source

Influência do envelhecimento na concentração de ácido hialurônico nas pregas vocais de ratas fêmeas Influence of aging on hyaluronic acid concentration in the vocal folds of female rats

open access: yesBrazilian Journal of Otorhinolaryngology, 2012
A vibração das pregas vocais é um importante fator envolvido na produção vocal e o envelhecimento pode alterar a quantidade de ácido hialurônico da prega vocal levando a disfonia.
Hugo Valter Lisboa Ramos   +4 more
doaj   +1 more source

Mielograma do rato normal

open access: yesRevista do Instituto Adolfo Lutz, 1948
Os autores estudaram a medula óssea do rato albino normal, obtida por punção tibial. Descrevem a técnica utilizada e referem os dados quantitativos encontrados, bem como particularidades morfológicas dos elementos celulares.
José Lopes Netto   +2 more
openaire   +1 more source

Genetic Legacy of the Last Ice Age Shapes Shallow Phylogeographic Structure in a Widespread Mediterranean Snake

open access: yesJournal of Biogeography, Volume 53, Issue 4, April 2026.
ABSTRACT Aim Mediterranean peninsulas typically harbour high intraspecific genetic diversity associated with long‐term persistence in multiple glacial refugia. However, some widespread taxa show unexpectedly shallow phylogeographic structure. Here, we investigate which historical processes can generate a pattern of strong genetic depletion within a ...
Daniele Salvi   +5 more
wiley   +1 more source

Mycotoxins in plant‐based drinks (soy, almond and oat): the BfR updates its assessment of their health risks based on newly collected data

open access: yesFood Risk Assess Europe, Volume 4, Issue 2, April 2026.
Abstract Mycotoxins (mould toxins) are secondary metabolites of moulds. They are natural toxins whose occurrence in food and feed is undesirable but cannot be completely avoided. Mycotoxins may occur as contaminants in plant products and raw materials such as grains, nuts and almonds if they are infested with mould during cultivation, storage or ...
German Federal Institute for Risk Assessment (BfR)
wiley   +1 more source

Relação entre a esfericidade, a função ventricular e o tamanho do infarto em ratos Relación entre la esfericidad, la función ventricular y el tamaño del infarto en ratones Association between sphericity, ventricular function and size of the infarction in rats

open access: yesArquivos Brasileiros de Cardiologia, 2010
FUNDAMENTO: A esfericidade do ventrículo esquerdo (VE) é fator associado com disfunção ventricular, mas não está bem caracterizada no modelo de ratos infartados.
Marcos F. Minicucci   +5 more
doaj  

Histomorfometric study of the spleen of healthy and diabetic Wistar rats supplemented or not with vitamin C [PDF]

open access: yes, 2009
O objetivo deste trabalho foi de analisar morfometricamente fragmentos histológicos do baço de animais normais e diabéticos, comparando os resultados encontrados e relacionando-os ao sexo e a suplementação da vitamina C. Foram utilizados 32 ratos Wistar,
AGRESTE, Fernanda R.   +4 more
core   +2 more sources

Island‐restricted reptiles are more threatened but less studied than their mainland counterparts

open access: yesConservation Science and Practice, Volume 8, Issue 3, March 2026.
Reptiles are highly diverse on islands, yet there is no comprehensive overview of island‐restricted reptiles (IRRs) regarding their distribution, threat status, and research efforts. Our assessment revealed that despite IRRs comprising nearly a quarter of global reptile species and 30.8% being threatened, only 7.2% of the literature focuses on them ...
Sara F. Nunes   +6 more
wiley   +1 more source

Existem válvulas na veia femoral em ratas Wistar?

open access: yesJornal Vascular Brasileiro, 2015
Resumo As veias femorais de 30 ratas da linhagem Wistar foram estudadas por método histológico com objetivo de investigar a presença de válvulas. Na análise histológica não foram identificadas projeções do endotélio ou recessos valvares que poderiam ...
Renan Kleber Costa Teixeira   +7 more
doaj   +1 more source

The effect of benzalkonium chloride on the serosa surface of colon rats, diluted in different solvents [PDF]

open access: yes, 2003
Objetivo: Estudar o efeito do cloreto de benzalconeo a 0,1 por cento diluido em diferentes solventes, aplicado na superficie serosa do colon sigmoide de ratos. Metodo: Utilizou-se 225 ratos machos, Wistar, com 90 dias de vida, subdivididos em 5 grupos de
Gerardi Filho, Vicente Antonio
core   +1 more source

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