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Ansrnacr Oxygen-isotope profiles through six agates from Sarusas, in the Skeleton Coast Park, Namibia, show that 6180 varies from 20.4Vm to 28.98@. These values are consistent with low temperatures of formation. Systematic differences in Dr8O exist between coarsely crystalline quartz (Q) bands and microcrystalline quartz (MQ) zones within the same agate, with the Q zones being, on average, 37- lighter than MQ zones. This difference is consistent with the crystallization of Q zones from HrO...
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Introduction - political culture, political socialization and political education. Part 1 Case studies: education and national unity in Nigeria political socialization and education in Kenya Tanzania - the political dimension of education for self-reliance development and political attitudes - the role of schooling in northern Nigeria weapon of war - political education in Zimbabwe schooling for bureaucracy in Africa. Part 2 A review of published research on politics in African education:...
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This is a study on the potential of NOAA satellite data for operational early warning and food security monitoring at a national level. Ethiopian NOAA NDVI 15-day composites (1981-1985) are analysed and compared to precipitation data including time series records from more than 200 stations. Anomaly analyses are introduced and the regional distribution of the 1984 drought is clearly identified. A strong relationship betwen satellite vegetation index anomalies and precipitation anomalies is...
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SUMMARY High rates of growth for foreign exchange and government revenues characterised the recent Nigerian economy up until 1982. Oil revenues then halved in one year and, in 1986, halved again. The initial responses were, first, borrowing and, second, severe cuts in government expenditure, In mid 1986, the currency was significantly depreciated. This increased domestic currency government revenues but substantially increased the cost of imports. This article documents the effects of...
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SUMMARY This article examines the effects of the current economic crisis on education in Zambia, and argues that the crisis has mobilised a remarkable amount of energy among parents, administrators and teachers, which has, paradoxically, helped to implement the recommendations of the Educational Reform document of 1977. Innovations such as production work in schools, teachers’ direct participation in efforts to improve the quality of education and the greater involvement of the community in...
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Distance education figures prominently among strategies recently proposed to assist African countries escape from educational crisis. Africa has already made considerable use of distance education to extend access to formal education, although most public institutions have often been severely constrained by lack of finance and manpower. Case studies of Zambia, Kenya and Zimbabwe suggest that critical factors for the effectiveness of distance education are the provision of adequate resources...
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The author presents the rationale and procedures for an innovative protocol for producing braille in English and indigenous languages for the blind and visually impaired population of Commonwealth Africa. Issues addressed include: essential technological changes; modes of transport and communication; and manpower and training demands.