منابع مشابه
Development Studies and Comparative Education: context, content, comparison and contributors
This article reviews Comparative Education over the past 20 years, explores the parallel literature of development studies, and identi es future directions and challenges for comparative education. Using Parkyn (1977) as a benchmark, an analysis of articles published between 1977 and 1998 suggests that only a small proportion appear to meet his criteria for comparative education. Parkyn’s purp...
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هدف از این مطالعه بررسی امکان استفاده از داروهای شناخته شده در درمان سایر بیماریها به عنوان داروهای ضد سرطان است. همچنین با استفاده از این داروها در ساختمان کمپلکس فلز می توان شاخص های دارویی بدست آمده را بررسی نمود. داروی ضد ویروس ایدز(hiv)به نام زیدوودین(azt)انتخاب و.کمپلکس.محلول.در.آب[pt(azt)2]cl2سنتزو به روشهای مختلف فیزیکی و شیمیایی شناسایی گردید. بر هم کنش مقایسه ای این دارو و کمپلکس پلا...
15 صفحه اولComparative Political Studies
Why do groups want to secede and where is demand for self-determination most likely to arise? We argue self-determination demand is moderated by the projected economic costs of policy autonomy. The trade-off between income and sovereignty implies that, other things being equal, richer regions are more likely to demand more autonomy. This trade-off suggests that relative regional income is a key...
متن کاملComparative Studies on Respiration
The respiration of Chlorella is diminished by exposure to hypertonic salt solutions. After a short exposure there is complete recovery when the algae are removed to the normal medium. After a longer exposure recovery may be incomplete, as shown by the fact that the rate of respiration fails to rise to the normal level. Staining with methylene blue indicates that few, if any, of the cells are ki...
متن کاملComparative Studies on Respiration
1. In the presence of 0.05 per cent dextrose the respiration of Aspergillus niger is increased by NaCl in concentrations of 0.25 to 0.5M, and by 0.5M CaCl(2). 2. Stronger concentrations, as 2M NaCl and 1.25M CaCl(2), decrease the respiration. The decrease in the higher concentrations is probably an osmotic effect of these salts. 3. A mixture of 19 cc. of NaCl and 1 cc. of CaCl(2) (both 0.5M) sh...
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ژورنال
عنوان ژورنال: Comparative Economic Studies
سال: 1993
ISSN: 0888-7233,1478-3320
DOI: 10.1057/ces.1993.13