Some Practical Obstacles in Modifying Governmental Structure to Meet Metropolitan Problems

Some Unsolved Practical Problems in Discriminant Analysis

Some obstacles to eliminating famine.

Few communities can be certain that their food supply is absolutely secure. River valleys show that there are times when a river needs its valley; it may be reasonable to use the valley as farmland if the interval between floods is 1-50 years: it is less reasonable to build houses in it. Similarly, volcanic soil is so fertile that farming the talus slope is profitable between eruptions. These p...

Copyright and Provenance: Some Practical Problems

Copyright clearance is an increasingly complex and expensive impediment to the digitization and reuse of information. Clearing copyright issues in a reliable and cost-effective manner for works created in the last 100 years can involve establishing complex provenance chains for the works, their copyrights, and their licenses. This paper gives an overview of some of the practical provenance-rela...

Inter-Governmental Competition : Market Solutions to Political Problems

In normative public economics, inter-governmental competition is usually viewed as harmful. Although empirical support for this position does not abound, market integration has intensi ̄ed competition among developed countries. In this paper we argue that when assessing welfare e®ects of inter-governmental competition for various forms of government imperfections (the public choice critique), th...

Early Amniocentesis - Results, Dangers and Practical Problems

موضوع: هدف این گزارش ازریابی تجربیات آمنیوسنتز در هفته ۱۲ حاملگی و قبل از آن است. طرح مطالعه: گزارش پزشکی از ۹۳۶ بیمار در هفته ۱۲ / ۸ . حاملگی و قبل از آن که جهت بررسی ژنتیکی، آمنیوسنتز شدند از اول اکتبر ۱۹۸۶ تا ژوئن ۱۹۹۰ از لحاظ سن حاملگی - اندیکاسیون - تکرار آمنیوسنتز - مشکلات آمنیوسنتز و نتایج حاملگی ارزیابی گردیدند. نتایج: ۲ هفته بعد از آمنیوسنتز اسقط گزارش شد ( % ۰٫۷) ۲۱ سقط قبل از هفته ...