منابع مشابه
مدول های poor-پروژکتیو
فرض می کنیم m وn، r- مدول های راست باشند، و می گوییم m وn- پروژکتیو است اگربرای هرr-مدول هم ریختی پوشایk f: n? وr- مدول هم ریخی k g: m?، r- مدول هم ریختی h:m?n موجود باشد به طوری که foh=g. ازنمادهای r-mod و r-mod ss استفاده می کنیم که به ترتیب به معنای کلاس تمامی r- مدول های راست و کلاس تمامی r- مدول های راست نیم ساده می باشند. هم چنین دامنه پروژکتیوی r- مدول های راست m را به صورت زیر تعریف می ...
15 صفحه اولWhy Are Poor Countries Poor ?
We attempt to explain why standard explanations of the poverty of nations are unsatisfactory. We first argue that human capital is low in poor countries because its production has increasing returns with respect to life expectancy. We then show that the reason why capital does not flow to poor countries (the Lucas paradox) can readily be explained once market prices rather than PPP prices are u...
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Introduction: According to the world health organization the prevalence of type 2 diabetes in our country and world will increase sharply by 2030. Because improving glycemic control delays the onset and progression of diabetes complications, recognizing related factors is key step in the effective treatment of these patients. Therefore, this study was performed to determine the predictors of po...
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Despite possessing the adequate purchase potential for the fast moving consumer goods (FMCGs), the poor are not reckoned as a viable market by the FMCG marketers and as a result, the purchase preferences of poor are largely unexplored for the concerned products. The present paper bridges the gap subsisting in the pertinent literature by exploring the purchase behavior of poor consumers in the r...
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ژورنال
عنوان ژورنال: JAMA: The Journal of the American Medical Association
سال: 1898
ISSN: 0098-7484
DOI: 10.1001/jama.1898.02440580046007