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This study investigated whether there was a difference in the level of academic achievement for African American students when instructed through lecture-and discussion and cooperative learning methods in the social studies classroom. Participants were 58 African American 12th graders in an urban public school. A control group was instructed using traditional lecture and discussion, while an intervention group received instruction through the Jigsaw II method of cooperative learning....

En depit du niveau de resistance assez important developpe par le niebe (Vigna unguiculata (L.) Walp.), sa production dans les ecosystemes secs du Sahel est affectee par des periodes de deficit hydrique survenant au cours du cycle de croissance. L'objectif de ce travail est de comparer a l'aide de criteres agronomiques, le degre de sensibilite au deficit hydrique de varietes hâtives a port erige et celui de varietes tardives a port semi-erige ou rampant. L'effet d'un deficit hydrique severe...

This study aimed at finding out the self-perceived competencies that teacher-trainees and beginning teachers acquired as the impact that practicum supervision and mentorship have had on them. Stratified and simple random sampling procedures were used to select 446-second year and third year teacher trainees and beginning teachers for the study. A 39-item inventory with an internal reliability coefficient of 0.85 was used to collect data. General Linear Model univariate analysis of variance,...

Analysis of the educational needs of rural girls in Lesotho and Zimbabwe suggests a number of shortcomings in the current form of secondary education, and ways in which it might be modified so as to serve this sizeable group of students better. Several of the shortcomings, notably in relation to curricular irrelevance and excessive focus on examinations, have long been recognised, including by politicians. Yet political pronouncements are seldom translated into policy, and even where policy...

This study investigated the relative effectiveness of concept mapping and lecture methods on the academic achievement of Nigerian High School Studies in biology using gender and locus of control as intervening variables. This study made use of a 2 x 2 x 2 non-randomised control group, pretest - posttest quasi-experimental factorial design. The sample consisted of two hundred and forty (240) senior secondary two students of which 120 were males and 120 were females. Two instruments; Biology...

The primary goal of this study was to evaluate how race and sex interact with the effects of a moderate dose of alcohol on different ocular control subsystems in African American (AA) and non-Hispanic white American (WA) college students.Horizontal visually guided (VG) saccades and antisaccades (AS) of 80 young adult, healthy, AA and WA college students were recorded with an infrared system. Subjects ingested 10 aliquots of ethanol at 3 min intervals, with the aggregate dose precalculated to...

Over the 1970's and 1980's the tertiary education sector was in deplorable state in terms of financial provision and physical infrastructure and in the relationship between tertiary institutions and government. In order to resuscitate the tertiary education in the country, government decided to introduce reforms in the sector. It is however, evident that many of the government proposals for tertiary education continue to be met from central government budget. Cost recovery and income...

Franklin (1991) described the pervasive nature of color consciousness within African American families and current research supports this idea.It appears that many people learn about color consciousness via verbal and non-verbal family interactions.Breland (1998a) proposed that color consciousness is an area in need of study and that researchers should attempt to determine its causes and effects.Specifically, she wrote, "Research demonstrating the relationship between skin tone bias and...

Abstract Background The objective of the present study was to determine the prevalence of intellectual disability (ID) and its associated disabilities in rural South African children aged 2–9 years. It was undertaken in eight villages in the district of Bushbuckridge, Northern Province, South Africa. Methods A two‐phase design was utilized. The first phase involved screening children on a house‐to‐house basis by interviewing mothers or caregivers using an internationally validated...

Abstract Background The objective of the present study was to determine the prevalence of intellectual disability (ID) and its associated disabilities in rural South African children aged 2–9 years. It was undertaken in eight villages in the district of Bushbuckridge, Northern Province, South Africa. Methods A two‐phase design was utilized. The first phase involved screening children on a house‐to‐house basis by interviewing mothers or caregivers using an internationally validated...

Abstract Background The objective of the present study was to determine the prevalence of intellectual disability (ID) and its associated disabilities in rural South African children aged 2–9 years. It was undertaken in eight villages in the district of Bushbuckridge, Northern Province, South Africa. Methods A two‐phase design was utilized. The first phase involved screening children on a house‐to‐house basis by interviewing mothers or caregivers using an internationally validated...

Abstract Background The objective of the present study was to determine the prevalence of intellectual disability (ID) and its associated disabilities in rural South African children aged 2–9 years. It was undertaken in eight villages in the district of Bushbuckridge, Northern Province, South Africa. Methods A two‐phase design was utilized. The first phase involved screening children on a house‐to‐house basis by interviewing mothers or caregivers using an internationally validated...

Abstract Background The objective of the present study was to determine the prevalence of intellectual disability (ID) and its associated disabilities in rural South African children aged 2–9 years. It was undertaken in eight villages in the district of Bushbuckridge, Northern Province, South Africa. Methods A two‐phase design was utilized. The first phase involved screening children on a house‐to‐house basis by interviewing mothers or caregivers using an internationally validated...

The coastal pollution problem in Mauritius is exacerbated by the hydrogeology of the volcanic substratum. Bacterial contamination of bathing waters and nutrients, water temperature, salinity, and dissolved oxygen (DO) were monitored at three different spatial and temporal scales along the coastline of Mauritius during 1997-1998. Standard techniques for water sample collection and analysis set by the American Public Health Association [APHA. Standard methods for the examination of water and...

Abstract In this study the authors have looked at the impact of school mapping in the development of education in Tanzania. The study examined the experiences of six districts where school mapping exercises were carried out. The key question that guided the study is what happened after school mapping. Through a combination of instruments and/or techniques—interviews, questionnaires, focus group discussion, and document analysis, the study found that school mapping impacted in varying degrees...

This paper presents the results of electrical and magnetic surveys carried out over the Boku fumarole sites (Main Ethiopian Rift). On the basis of observed thermal manifestations, surface alterations and geophysical results we suggest that the Boku thermal field is a vapour-dominated, dry type geothermal system tapping heat from the shallow acidic magma chamber of Quaternary volcanic rocks of the Rift floor. The cap rock is formed by the self-sealing process through hydro thermal alterations...

The public health and economic consequences of Plasmodium falciparum malaria are once again regarded as priorities for global development. There has been much speculation on whether anthropogenic climate change is exacerbating the malaria problem, especially in areas of high altitude where P. falciparum transmission is limited by low temperature. The International Panel on Climate Change has concluded that there is likely to be a net extension in the distribution of malaria and an increase...

The public health and economic consequences of Plasmodium falciparum malaria are once again regarded as priorities for global development. There has been much speculation on whether anthropogenic climate change is exacerbating the malaria problem, especially in areas of high altitude where P. falciparum transmission is limited by low temperature. The International Panel on Climate Change has concluded that there is likely to be a net extension in the distribution of malaria and an increase...