نتایج جستجو برای: causes
تعداد نتایج: 251497 فیلتر نتایج به سال:
We propose a new definition of actual causes, using structural equations to model counterfactuals. We show that the definition yields a plausible and elegant account of causation that handles well examples which have caused problems for other definitions and resolves major difficulties in the traditional account. Supported in part by NSF under grant IRI-96-25901 Supported in part by grants from...
We propose a new definition of actual causes, using structural equations to model counterfac tuals. We show that the definition yields a plausi ble and elegant account of causation that handles well examples which have caused problems for other definitions and resolves major difficulties in the traditional account.
Sur une periode de un an (mars 1974 :1 mars 1975) 572 enfants ont ete hospitalises dans le service de pediatrie du C.H.U. LOGMANDOLEH ADHAM, de l'Universite Nationale d'lran. a Teheran. 69 deces ont ete constates (] 3 "{, des malades admis) dont les 3/4 concernaient les enfants ages de moins de 24 mois, l'autopsie a ete effectuce chez 73,8';{, des enfants decedes dans le service. Environ 4...
Introduction: Infertility has various and innumerable causes, which pointing them out one by one is difficult and out of the scope of this paper. Infertility causes are different between males and females, and each case requires a separate and thorough research. The present study aimed to identify the male infertility causes. Methods: This study was conducted using a qualitative method, which ...
the collapse of the soviet :union: in 1991, and the transformation of the old security arrangement created a new geopolitical environment in the caucasus region. in fact, the unique geographical conditions, ethnic- racial and religious diversity, the heritage of socialism in the cultural, political, economic and social structures, strategic position, competitions between regional and extra-regi...
nowadays,tourism industry considered as one of the main sources of income of a country.unfortunately and despite of owning plenty of cultural historical and natural attractions, iran has not reached to a proper position in this field. besides, the historical cities of a country are considered as the income resource and national wealth of it. qazvin with a rich cultural precedent, have suitable ...
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