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Full-Text Articles in Physical Sciences and Mathematics
Sex Ratio Of Breeding Common Toads (Bufo Bufo) - Influence Of Survival And Skipped Breeding, Jon Loman, Thomas R. Madsen
Sex Ratio Of Breeding Common Toads (Bufo Bufo) - Influence Of Survival And Skipped Breeding, Jon Loman, Thomas R. Madsen
Faculty of Science - Papers (Archive)
Anuran sex ratio at breeding sites is typically male biased. Such sex ratios may be due to poor female survival, to females not breeding as frequently as males and/or to males becoming sexually mature earlier than females. In the present study, the first two factors are analyzed in a common toad (Bufo bufo) population in southern Sweden. Toads were captured, marked and recaptured at the breeding site during 5 years. Within season capture patterns were analyzed using the Jolly-Seber model and among-year captures using the Closed robust design model. Population estimates of males and females yielded an among year variation …
Influence Of Polyunsaturated Fatty Acids On Intestinal Barrier Function During Colitis, Bianca Knoch, Warren C. Mcnabb, Nicole Roy
Influence Of Polyunsaturated Fatty Acids On Intestinal Barrier Function During Colitis, Bianca Knoch, Warren C. Mcnabb, Nicole Roy
Faculty of Science - Papers (Archive)
Tight junction proteins are important for intestinal homeostasis. They prevent paracellular transport of large molecules and maintain cell polarity. Impaired tight junction function leads to a more permeable intestinal epithelial barrier and therefore potentially increases disease risk. Limited information is available concerning the effects of food components on the intestinal barrier, particularly paracellular permeability and tight junction proteins. In vitro studies with intestinal epithelial cells and in vivo studies using animal models have demonstrated that dietary n-3 and n-6 polyunsaturated fatty acids (PUFAs), particularly n-3, can reduce intestinal inflammation and permeability. PUFAs can induce transcriptional regulators which may act in …