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...
متن کاملPublic Health, Urban Governance and the Poor in Bangladesh: Policy and Practice
As is the case elsewhere in Asia, urbanization is growing at a rapid pace in Bangladesh. With the increased urbanization, the basic amenities of life are not expanding for the urbanites. Rather, the increased populations have been exerting continuous pressure on the existing limited facilities. The poor, who constitute a large portion (45 per cent) of the urban population, are the principal vic...
متن کاملPractice of Epidemiology Revealing the Complexity of Health Determinants in Resource-poor Settings
An epidemiologic systems analysis of diarrhea in children in Pakistan is presented. Application of additive Bayesian network modeling to 2005–2006 data from the Pakistan Social and Living Standards Measurement Survey reveals the complexity of child diarrhea as a disease system. The key distinction between standard analytical approaches, such as multivariable regression, and Bayesian network ana...
متن کاملUsing Communities of Practice for the Learning of Students with Poor Vision
The Graduate Program in Engineering and Knowledge Management, at Federal University of Santa Catarina, with the support from CAPES PROESP, developed a project which focus is the development of an adaptable and accessible web environment for teaching the discipline of Descriptive Geometry WebGD. This article presents the parameters needed for social and educational inclusion of students with vis...
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ژورنال
عنوان ژورنال: British Dental Journal
سال: 2006
ISSN: 0007-0610,1476-5373
DOI: 10.1038/sj.bdj.4813685