منابع مشابه
Environmental Sociology and the Sociology of Natural Resources: Institutional Histories and Intellectual Legacies
While environmental sociology and the sociology of natural resources nominally focus on the same subject matters, in practice the literatures in the two subdisciplines have tended to be quite separate intellectual enterprises. Environmental sociology and the sociology of natural resources have different origins, their practitioners tend to have distinctive institutional locations, their problem...
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در این تحقیق به مطالعه وجود انتخاب نامساعد(کژ گزینی) در بازار بیمه درمان تکمیلی ایران پرداخته شده است. داده های مورد نیاز توسط پرسشنامه و به روش نمونه گیری خوشه ای جمع آوری شده است. پرسشنامه ها در میان افراد شاغل ساکن شهر تهران توریع شد. در این تحقیق با استفاده از تخمین دو مدل لجستیک و به دست آوردن ضریب همبستگی میان تقاضای بیمه درمان تکمیلی و رخداد خسارت به بررسی موضوع مورد نظر پرداخته شده است....
15 صفحه اولNatural selection
The time-scale of evolution Think of the 3.5 billion years that makes the history of life on earth as stretching for a single year. On the first of January, there is nothing more than primitive bacteria, and this remains the case for the next eight months. Multicellular eukaryotic life appears in early September, vertebrates invade the land at the beginning of December and dinosaurs become exti...
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Many people have argued that the evolution of the human language faculty cannot be explained by Darwinian natural selection. Chomsky and Gould have suggested that language may have evolved as the by-product of selection for other abilities or as a consequence of as-yet unknown laws of growth and form. Others have argued that a biological specialization for grammar is incompatible with every ten...
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ژورنال
عنوان ژورنال: American Journal of Sociology
سال: 1908
ISSN: 0002-9602,1537-5390
DOI: 10.1086/211693