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Agroforestry in its broadest sense has been practiced in Africa for a long time. The most common traditional form, shifting cultivation, has largely broken down due to pressures from the increasing population. Research at international centers focuses both on the development of new and the improvement of traditional systems. A main constraint is the shortage of professional and technical staff and a lack of knowledge concerning agroforestry by policy makers. Therefore, a great emphasis has...
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Abstract The distribution of earthquakes since 1900 in the East African Rift System between 4°N and 6°N is discussed. Recent crustal deformation corresponding to shear failure associated with earthquakes and offset in the major rift faults demonstrate that the northern part of the East African Rift System is characterized by a NW-SE trending active shear zone corresponding to an intracontinental transform fault zone. In this zone, stepped strike-slip and normal faults are shown to be jointly...
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This second part of a national survey was designed to identify the training needs and programmes considered most appropriate by the most senior health management staff of the state governments for the field practice of community medicine in Nigeria. The operation of the current primary health care programme and the field practice of community medicine although constitutionally a local government responsibility, effectively rests on the state governments at present because of economic and...
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Abstract The adoption of RP as a model of teaching in non-native speaker English societies such as Nigeria seems to have come to say. However, the accent of English that emerged in Nigeria, over the years, (to some linguists) is anything but RP (although some hold the view that there are a few RP speakers in Nigeria). We are, therefore, forced to ask the question: What is RP?; or better still: what are its defining characteristics, particularly in relation to non-native varieties of English?...
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Blood pressure, heart rate and anthropometric parameters were measured in 807 Nigerian school-age children. There was no significant difference between the blood pressure and heart rate of boys and girls after adjusting for differences in age and anthropometric parameters. The stepwise regression analysis revealed that the strong determinants of blood pressure levels were weight, Quetelet index and triceps skinfold thickness. Based on our findings, we recommend that body weight norms rather...
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Data collected in 1980 in Kenya and Tanzania in enterprise-based surveys are analyzed to examine the incidence of formal training provided by employers. The wage benefits are estimated using earnings functions, for subsamples of skilled manual workers. The small training coefficient in Kenya is shown to be more likely the result of weak specification than low returns to training; separate earnings functions for subsamples stratified by training have significantly different slopes and...