نتایج جستجو برای: biological half
تعداد نتایج: 643486 فیلتر نتایج به سال:
While full-sibling group reconstruction from microsatellite data is a well-studied problem, reconstruction of half-sibling groups is much less studied, theoretically challenging, and computationally demanding. In this paper, we present a formulation of the half-sibling reconstruction problem and prove its APX-hardness. We also present exact solutions for this formulation and develop heuristics....
Several studies carried out after the Chernobyl nuclear accident in 1986 showed that lichens and mosses are suitable bioindicators of the fall-out, given their long life expectancy. Cs-137 activities were measured in different mosses, epigeic and epiphytic lichens, collected from three sampling sites from Koppl, in the Salzburg province and the effective and biological half-time of Cs-137 were ...
BACKGROUND The aim of the study was to assess the biological risks of medical laboratory employees with particular focus on laboratory acquired infection (LAI), activities having the greatest risk, accidents with biological material, post exposure procedure, preventive measures and workers' knowledge about biological exposure. MATERIALS AND METHODS The study involved 9 laboratories. A questio...
To reason competently about novel entities, people must discover whether the entity is alive and/or sentient. Exactly how people make this discovery is unknown, although past researchers have proposed that young children – unlike adults – rely chiefly on whether the object can move itself. This study examined the effect of goal-directed versus aimless autonomous movement on children’s and adult...
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