نتایج جستجو برای: originally guarding
تعداد نتایج: 47634 فیلتر نتایج به سال:
A comprehensive description of an alignment procedure for double-mirror (Franks) cameras is presented.* It is intended to serve as a practical laboratory guide. The method is summarized in a flow chart and illustrated by beam photographs and intensity profiles. Principals underlying the method are explained. Detailed procedures are given for the initial alignment of the mirrors, optimizing the ...
Life histories are state-dependent, and an individual’s reproductive decisions are determined by its available resources and the needs of its offspring. Here we test how a chick’s needs for food and protection influence parental decisions in the Antarctic petrel, Thalassoica antarctica , where the parents, due to their long breeding lifespan, are expected to give priority to their own needs bef...
OBJECTIVE To characterize behavioral circumstances of bites to children by dogs presented to a veterinary behavior clinic. METHODS Retrospective case series examining medical records of dogs presenting by referral to a university veterinary hospital for aggression and which had bitten a child <18 years old. Behavioral data included age of victim, familiarity with dog, and circumstances of bit...
To increase individual male fitness, males of various species remain near a (potential) mating partner and repel their rivals (mate-guarding). Mate-guarding is assumed to be mediated by two different types of motivation: sexual motivation toward the opposite sex and competitive motivation toward the same sex. The genetic/molecular mechanisms underlying how mate presence affects male competitive...
In this paper we study several problems concerning the guarding of a polygon or a x-monotone polygonal chain P with n vertices from a set of points lying on it. Our results are: (1) An O(n logn) time sequential algorithm for computing the shortest guarding boundary chain of a polygon P. (2) An O(n logn) time sequential algorithm for computing the smallest set of consecutive edges guarding a pol...
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