منابع مشابه
Changing Commitments Based on Reasons and Assumptions
Intention reconsideration is a central challenge in BDI theory. The intention reconsideration models of the early nineties focus on when a commitment may be reconsidered, for example when it has been achieved, when it is no longer achievable, or when the associated goal has been dropped. In this paper, we create an abstract framework in which we add the “reasons” and the “assumptions” that form...
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Hantavirus is a genus of virus represented by 45 different species and is hosted by small mammals, predominantly rats and mice. Roughly, half of all hantaviruses cause diseases in humans that vary in morbidity from mild to severe. The natural and anthropogenic changes occurring in the environment appear to be impacting the ecology of hantaviruses and their natural hosts as well as the incidence...
متن کاملEcology and evolution of primate colour vision.
More than one hundred years ago, Grant Allen suggested that colour vision in primates, birds and insects evolved as an adaptation for foraging on colourful advertisements of plants--fruits and flowers. Recent studies have shown that well developed colour vision appeared long before fruits and flowers evolved. Thus, colour vision is generally beneficial for many animals, not only for those eatin...
متن کاملThe ecology of primate material culture.
Tool use in extant primates may inform our understanding of the conditions that favoured the expansion of hominin technology and material culture. The 'method of exclusion' has, arguably, confirmed the presence of culture in wild animal populations by excluding ecological and genetic explanations for geographical variation in behaviour. However, this method neglects ecological influences on cul...
متن کاملPrimate dietary ecology in the context of food mechanical properties.
Substantial variation exists in the mechanical properties of foods consumed by primate species. This variation is known to influence food selection and ingestion among non-human primates, yet no large-scale comparative study has examined the relationships between food mechanical properties and feeding strategies. Here, we present comparative data on the Young's modulus and fracture toughness of...
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ژورنال
عنوان ژورنال: American Anthropologist
سال: 1981
ISSN: 0002-7294,1548-1433
DOI: 10.1525/aa.1981.83.3.02a00010