Louka Sirois

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Given the rise in commercialization of edible forest mushrooms in Eastern Canada, it is advantageous to understand the fruiting patterns of fungal species. The aim of this study is to understand the phenology of edible species within the mixed boreal forest. Weekly surveys were conducted in 481 quadrats during the mushroom growing season over three(More)
A method for three-dimensional verification of anatomy setup that uses the correlation of portal images and reference megavoltage digitally reconstructed radiographs (MDRRs) is presented. Prior to a treatment, an orthogonal pair of portal images is acquired from which subimages containing anatomical features are selected. These subimages are consequently(More)
Under stress conditions, some microalgae up-regulate certain biosynthetic pathways, leading to the accumulation of specific compounds. For example, changing nutrient composition can induce stress in algae’s physiological activities, which may trigger an intense increase in carotenoid production. In this study, the change of photosynthetic functions and(More)
Centre d' ´ etudes nordiques and Chaire de Recherche sur la Forê t Habitée, Université du Qú ebec a ` Rimouski, 300 Alí Abstract Questions: What was the tree species composition of forests prior to European settlement at the northern hardwood range limit in eastern Québec, Canada? What role did human activities play in the changes in forest composition in(More)
We investigated the behavioural mechanisms involved in group formation at a feeding site in a captive snowshoe hare population. The analysis showed that grouping resulted most often from a feeding attraction which led individuals to use the feeding site independently of each other. However social attraction and especially social repulsion among hares were(More)
The purpose of this study is: 1. comparing the immuno-enzymatic method (E.L.I.S.A. Abbott) and the cellular culture in the screening of the chlamydial genital infections; 2. evaluating these two tests in post-treatment control. During a 3 month period, 825 patients of our S.T.D. Clinic are considered a risk group and 144 have a positive culture. The(More)
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