منابع مشابه
Maternal Health MATERNAL MORTALITY-A NEGLECTED TRAGEDY
THE World Health Organisation (WHO) estimates that 500 000 women in developing countries die every year from complications of pregnancy, abortion attempts, and childbirth.’ 100-300 maternal deaths per 100 000 births are common in the Third World, and rates are much higher in rural areas.2 In contrast developed countries have only 7-15 maternal deaths per 100 000 live births. Morbidity rates are...
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The first time went a bit like this: I walked slowly and painfully into the consulting room, leaning heavily on my stick. I got myself settled. My general practitioner asked to weigh me; I slowly and carefully levered myself back up to standing, walked the six steps across the room to the scales with my stick, and then slowly and carefully propped it up and balanced myself solo. We were rapidly...
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The so-called “one-bit catastrophe” for the compression algorithm LZ’78 asks whether the compression ratio of an infinite word can change when a single bit is added in front of it. We answer positively this open question raised by Lutz and others: we show that there exists an infinite word w such that ρsup(w) = 0 but ρinf(0w) > 0, where ρsup and ρinf are respectively the lim sup and the lim inf...
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1 Albert Einstein College of Medicine, Bronx, New York, United States of America, 2 Helminth Immunology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America, 3 Departments of Neurology and Global Health, University of Washington, Seattle, Washington, United States of America,...
متن کاملTRENDS IN RAINFALL AND ECONOMIC GROWTH IN AFRICA: A Neglected Cause of the African Growth Tragedy*
We examine the role of trends in rainfall in the poor growth performance of sub-Saharan African nations relative to other developing countries. To do so we use a new crosscountry panel climatic data set in an empirical economic growth framework. Our results show that rainfall has been a significant determinant of poor economic growth for Africa, but not for other developing countries. Depending...
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ژورنال
عنوان ژورنال: BMJ
سال: 1999
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.318.7197.1526