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کتاب های مشتمل بر موضوعات مربوط به انساب و رجال را میتوان از جمله منابع مهم در پژوهشهای تاریخی به معنای عام و تاریخ فرق اسلامی در معنای خاص به شمار آورد. «الأنساب» سمعانی (د.562 ق) در شمار مهمترین آثار در این زمینه است. در این مقاله کوشیدهایم گزارشهای سمعانی را درباره شیعیان با توجه به اوضاع و احوال پریشان سیاسی زمانه او و برخوردهای فرقهای در این دوران، بررسی و تحلیل کنیم. با وجود سیاست ض...
در بیان استخراج جیب یک درجه رساله ای است به زبان فارسی از مصنفی ناشناس که ظاهراً به منظور تقریر و توضیح روش محاسبه جیب (سینوس) یک درجه بر اساس شرح قوشچی (د. 879 ق) بر زیج الغ بیگ (فارسی) و رسالة فی استخراج جیب درجة واحدة (عربی) اثر قاضی زاده (د. حدود 840 ق) تألیف شده است. اثری که مبدع اصلی این روش، غیاث الدین جمشید کاشانی (د. 832 ق)، در این باره نوشته، تاکنون به دست نیامده، اما اثر قاضی زاده که ...
Family Planning Perspectives effects of family planning programs on rates of births and abortions; and incentives for out-of-wedlock childbearing attributed to the Aid to Families with Dependent Children (AFDC) program. These questions reflect more general but perhaps less widely publicized issues that are well suited to economic analysis, such as the cost and accessibility of reproductive heal...
Cytochrome P450 (CYP) 2J2 is one of the human CYPs involved in phase I xenobiotics metabolism. It is mainly expressed in extrahepatic tissues, including intestine and cardiovascular systems. The general role of CYP2J2 in drug metabolism is not yet fully understood, and the recent discovery that CYP2J2 can metabolize a wide range of structurally diverse drugs and its primary distribution in the ...
The effects of Monosodium glutamate (MSG), a popular food additive, on hematopoietic and cardiovascular risk variables in animal have not been reported till date. We report here the effects of MSG on the said variables in rat model. Adult female rats of Charles foster strain weighing about 100-120 gms were administrated MSG at a dose level of 0.8gm/kg/day, 1.6gm/kg/day, 2.4gm/kg/day, respective...
The role of orthographically similar words (i.e., neighbours) in the word recognition process has been studied extensively using short-term priming paradigms (e.g., Colombo, 1986). Here we demonstrate that long-term effects of neighbour priming can also be obtained. Experiment 1 showed that prior study of a neighbour (e.g., TANGO) increased later lexical decision performance for similar words (...
In the present study, the relationship between performance on temporal and pitch discrimination and psychometric intelligence was investigated in a sample of 164 participants by means of an experimental dissociation paradigm. Performance on both temporal and pitch discrimination was substantially related to psychometric intelligence (r = .43 and r =.39). Regression analysis and structural equat...
The growth of Internet-based piracy has led to a wide-ranging debate over how copyright policy should be enforced in the digital era. In this paper we analyze the impact of the US government’s shutdown of a major piracy site — Megaupload.com — on digital sales and rentals of movies. Exploiting cross-country variation in pre-shutdown usage of Megaupload, we find that the shutdown of Megaupload a...
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