نتایج جستجو برای: southern africa
تعداد نتایج: 224713 فیلتر نتایج به سال:
This report documents the impacts of international maize breeding research in eastern and southern Africa. It draws on information from a comprehensive 1998/99 survey of public and private maize breeding and seed production organizations active in the region. In many countries of eastern and southern Africa, policy reforms introduced in the 1980s and 1990s encouraged private sector participatio...
AIDS: The ‘Grandmothers’ Disease’ in Southern Africa Valerie Møller In Africa, AIDS is called the grandmothers’ disease because the burden of caring for the sick and the survivors falls on older women. The two abstracts which follow report an overview of research on the social and economic effects of the HIV}AIDS epidemic in Southern Africa and a case study of an intervention among older women ...
Geomagnetic field observations over southern Africa, including countries like South Africa, Namibia, and Botswana, were conducted during October and November 2005 as part of a collaborative project, called COMPASS (COmprehensive Magnetic Processes under the African Southern Sub-continent) between the Hermanus Magnetic Observatory (HMO) in South Africa and the GeoForschungsZentrum Potsdam (GFZ) ...
BACKGROUND There is a growing global acknowledgement that improving child survival rates is no longer sufficient. Emphasis is shifting to the improvement of health and developmental trajectories in early childhood. Screening and measurement of these trajectories in low and middle income countries is difficult, however, as they currently rely on developmental tests standardised among populations...
After several decades of research on the subject, we now know when the first livestock reached southern Africa but the question of how they got there remains a contentious topic. Debate centres on whether they were brought with a large migration of Khoe-speakers who originated from East Africa; or whether the livestock were traded down-the-line among hunter-gatherer communities; or indeed wheth...
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