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Over the years, Nigerian governments have shown concern for agricultural development by adopting various agricultural development programmes. Until the early 1980s, these programmes failed to make the right impact in the sector. Subsequently, the global economic recession which had pronounced effects in the developing countries worsened the situation. Its particular expressions became, inter alia, an undeniable food crisis and massive unemployment. The potential for social dislocation posed...

Peace-keeping by the United Nations has become a central tool of international diplomacy and conflict resolution. In contrast to its previous emphasis on providing a passive buffer between antagonists, modern-day United Nations peace-keeping is increasingly directed towards establishing the conditions under which respect for human rights and fundamental freedoms can be maintained or restored. This shift in emphasis is reflected in the tasks which are assigned to peace-keepers. Military and...

Recently we had the pleasure of observing high school mathematics classrooms in which teachers were demonstrating effective teaching strategies that they had learned at in-service sessions sponsored by the Eisenhower and National Science Foundation (NSF) programs. Unfortunately, we also noticed a distinct lack of African American students in the advanced mathematics classes. In most of the schools, Aftican American students made up 10 to 30 percent of the enrollment, but seldom was more than...

There is increasing awareness of the needs of children with low vision, particularly in developing countries where programmes of integrated education are being developed. However, appropriate low vision services are usually not available or affordable. The aims of this study were, firstly, to assess the need for spectacles and optical low vision devices in students with low vision in schools for the blind in Kenya and Uganda; secondly, to evaluate inexpensive locally produced low vision...

Abstract The nature of physics as a scientific discipline is largely determined by the models of reality it utilizes. It is therefore appropriate that teachers of physics have a sound knowledge of the origin and nature of these models, their functions and the role they play in the development of the discipline. The results of a study with regard to the perceptions of models held by prospective physical science (a combination of physics and chemistry) teachers studying at South African...

Relations between nutrition, cognition, and adaptive behaviour measures were assessed for 110 Egyptian pre-adolescents (47% male), ranging in age from 7 to 10 years. Using a combination of oral recall and weighing of food portions, the level of dietary intake was obtained for 19 specific nutrients, including measures of energy (kilocalories), macronutrients (protein, fat, carbohydrates), and micronutrients (vitamins, trace minerals). Children were tested on six subscales from the Egyptian...

This paper focuses on the private learning mechanisms by which firms build up their technical capabilities and create competitive advantage. Specifically, the authors examine efforts inside the firm to promote technical learning, such as worker training and direct acquisition of superior foreign know-how in the form of technology licence agreements, and measure their effects on enterprise productivity. In terms of public policy, knowledge of the extent to which private learning mechanisms...

To acknowledge the clinical syndrome chronic fatigue syndrome (CFS) and outline the diagnostic criteria and reasonable management.Attempt at containment of treatment cost and improvement of the quality of care of patients with CFS.Delphi-type commentary from 20 expert clinicians and appropriate organisations. Limited literature survey.To clarify the reasonable management of CFS amid conflicting clinical opinion on a condition of concern to patients, funders and doctors. An adaptation of an...

We have studied the Tenes-Abou El Hassan (TAEH) active fold and its relationships with the 1922 earthquake (M = 6.0) in terms of repeated coseismic deformations in compressional domains. The Abou El Hassan village (formerly Cavaignac) experienced a destructive but moderate-sized earthquake, which was registered in several seismic stations, and generated surface breaks and rock falls located on the active fold. Recent field observations reveal the existence of a N060°-striking fault scarp,...

Previous articleNext article No AccessBook ReviewsChildhood Learning and Adult Life: The Functions of Indigenous, Islamic and Western Education in an African Context. Holger Daun Kingsley BanyaKingsley Banya Search for more articles by this author PDFPDF PLUS Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail SectionsMoreDetailsFiguresReferencesCited by Comparative Education Review Volume 39, Number 3Aug., 1995 Sponsored by the...

Training, Technology and Firm-Level Efficiency in Sub-Saharan Africa Tyler Biggs RPED Paper No. 48 August 1995 The views and interpretations expressed in this study are solely those of the authors. They do not necessarily represent the views of the World Bank or its member countries and should not be attributed to the World Bank or its affiliated organizations 41970 P ub lic D is cl os ur e A ut ho riz ed

This study reports field, petrographic, geochemical and isotopic (Nd, Sr) data on the rhyolitic ignimbrites and lavas which erupted concurrently with mafic lavas onto the continental basement of Eastern Morocco during late Variscan times. Throughout the volcanic cycle up to 50 km3 of crystal-rich ignimbrites erupted from individual or network-forming feeder-dykes over an area of 75 km2. Crystal-poor lavas, extruding episodically in the central Tazekka complex, produced a small pile of less...

The 1990 McCall, Belli, and Madjidi Statistics Altitude Scale was administered to 50 postgraduate students in education at the University of the North, Lebowa, South Africa at the end of a course on educational research methods. The estimate of internal consistency was .92. Analysis supported the 1992 findings of Glencross and Cherian obtained elsewhere in South Africa.

This study of 138 urban subjects examined the role of self-concept and motivation in aiding resilient African American high school sophomores to obtain academic competence. In this study, high school sophomoresfrom an impoverished, stressful background with grade point averages of 2.75 or above were considered academically resilient. To determine resiliency status, socioeconomic status was determined by the Hollingshead Two Factor Index and stress by a self-report measure. Self-concept and...

The effects of an intermittent high intensity stimulus (running) or a chronic low intensity stimulus (cold acclimation) of oxidative metabolism on maximal oxygen uptake (V̇O2max), lung O2 diffusing capacity (DlO2) and skeletal muscle as well as fat tissue mitochondrial content in growing guinea pigs are described. Young male guinea pigs were assigned to three experimental groups (n = 5): control (C), endurance trained (T; at 70% V̇O2max) or cold acclimated (CA; 5–7°C) for six weeks. Animals...

To provide a context in which to interpret reports of bowel dysfunction, it is important to know bowel patterns of the general population. We asked 600 apparently healthy students at the Medical School of the University of Ibadan, Nigeria, to complete a questionnaire. Their diet consists mainly of foods derived from tubers and legumes such as yam, cassava and beans. The majority of our students defaecated between three times per day and three times per week. Subjects with one bowel movement...