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Situated on the northern edge of the West African craton, the Bleida orebodies are located on an inactive continental margin along which are preserved ophiolites of Upper Proterozoic age. The copper deposits (chalcopyrite, bornite, pyrite) are stratiform distal massive sulfide deposits whose position is controlled by both the sedimentation of shales and an acid volcanism which follows a more important basic volcanism. Pan-African deformation (650-600 m.y.) has determined the actual geometry...
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Situated on the northern edge of the West African craton, the Bleida orebodies are located on an inactive continental margin along which are preserved ophiolites of Upper Proterozoic age. The copper deposits (chalcopyrite, bornite, pyrite) are stratiform distal massive sulfide deposits whose position is controlled by both the sedimentation of shales and an acid volcanism which follows a more important basic volcanism. Pan-African deformation (650-600 m.y.) has determined the actual geometry...
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Several years ago, while undertaking a research project in Africa. I had the good fortune to meet a bright young teacher with a particular interest in mathematics. Mr. Gaspar Duri was born in the lnyanga Mountains on the border of Mozambique and Rhodesia.
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The aims of this article are twofold : to outline the principal problems faced by teacher educators in developing countries; and to describe some of the strategies currently being adopted.
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Although philosophers do not accept that education has intrinsic values or that it serves instrumental ends (Dewey, 1966; Peters, 1967; Gribble, 1969), most people would readily agree that it can be put to several uses and that it fulfills diverse functions. If by education we mean the aggregate of skills, values, knowledge, and attitudes necessary for the self-perpetuation of a society, it is easy to see its instrumental extensions, philosophers notwithstanding. Hence in every society that...
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Looking at the Afrikaner Today. Edited by Hendrik W. van der Merwe. (Cape Town: Tafelberg, 1975. Pp. 124. R7.20, paper.) - White South African Elites. By Hendrik W. van der Merwe, M. J. Ashley, N. C. J. Charton, and B. J. Huber. (Cape Town: Juta, 1974. Pp. 190. R6.00.) - Occupational and Social Change among Coloured People in South Africa. Edited by Hendrik W. van der Merwe and C. J. Groenewald. (London: Rex Collings, 1976. Pp. 278. R6.00, paper.) - Student Perspectives on South Africa....
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An asymmetrical rise, 450 km long, on the Bismarck Sea floor extends between Manus Island and Willaumez Peninsula on the north central coast of New Britain (Figure 1). Northeast of the steeper flank of the rise is the Manus Basin, 2500 m deep, which is deeper and apparently younger than the New Guinea Basin southwest of the rise. The Willaumez-Manus Rise is coincident with a Bouguer gravity trough; Wiiicox (1977) calculated its crust to be 21-25 km thick, in contrast to values of mainly...
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Beyond the Non-Formal Fashion: towards educational revolution in Tanzania by Arthur L. Gillette Amherst, Center for International Education, University of Massachusetts, 1977. Pp. xi + 321. $5.50 paperback. - The African Artisan: education and the informal sector in Kenya by Kenneth King London, Heinemann, 1977. Pp. viii + 226. £4.80 paperback. - Education and Community in Africa edited by Kenneth King Centre of African Studies, University of Edinburgh, 1976. Pp. viii + 346. £2.00 duplicated. - Volume 16 Issue 3
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A study of drought stress was carried out on three guinea grass ( Panicum maximum Jacq.) populations having three different levels of genetic variability; the most variable reproduces sexually. Three preconditioning treatments were used. In the wet treatment, plants were watered daily; in the medium, when soil water potential (ψ s ) reached about —1.0 bar (18 drying cycles); and in the dry when ψ s reached about — 15 bars (eight drying cycles). For all three populations,...
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Casual blood pressure was measured in 600 healthy school children in Kaduna, Nigeria. Of these children, 21 (3.5%) had blood pressure more than two standard deviations above the mean for age. There was no significant difference in the pattern of mean blood pressure in both sexes.
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The development of the health services in the majority of underdeveloped countries during the colonial period, and immediately after independence, have concentrated on providing a largely hospital‐based curative programme. This has also included training of the local population, particularly as nurses, to carry out this programme. Figures show that, for the African region of the World Health Organization (WHO), nursing personnel form a significant group of trained health manpower (WHO 1973)....
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Abstract The Arab Republic of Egypt has long been interested in promoting the use of aids in schools and universities, especially in science teaching. The general Audiovisual Aids Department was established in 1956 to produce samples, models, posters and other media. Although these efforts were largely successful, some problems hindered the full development of educational technology. Lengthy school curricula, lack of good teacher preparation programmes, scarcity of funds, bureaucracy and the...