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To investigate vitamin A status of pre-school and school aged children in the study area.Cross-sectional.Arssi, Ethiopia.Four hundred and two children.Night blindness, Bitots spot, corneal xerosis, corneal ulceration and corneal scar were observed in 7.2%, 2.2 %, 0.2%, 0.5%, and 0.5% of the children respectively. The prevalence of xerophthalmia was higher in school aged children than pre-school children (P< 0.0001). Based on the WHO recommended cut-off level, serum retinol levels were in the...

Two earthquakes occurred in the Congo Basin in March and April 1998. These two events are reported to have comparable size (5.5 mb) and nearly the same epicentral locations, far from the western branch of the East African Rift System (EARS). The P-wave groups of these two earthquakes as recorded at FURI station have nearly identical waveforms, which is indicative of similar rupture process. The epicentral distribution in the area has no apparent trend and the reported seismicity is...

Emergency contraception (EC) refers to methods that women can use to prevent pregnancy after unprotected sexual intercourse, method failure, or incorrect use. There is growing worldwide acceptance and promotion of EC as a measure to reduce the level of unwanted pregnancies and, hence, unsafe abortions. The potential effect of EC in this regard could be most evident in sub-Saharan Africa. In Ghana, the Ministry of Health has since 1996 included EC in its reproductive health service policy and...

This paper estimates the number of children who will need to attend and complete primary school in sub-Saharan Africa in order for the current international development target of universal primary education (UPE) by 2015 to be attained. In addition, a variety of demand constraints that will also affect the attainment of UPE are identified and assessed. The main conclusion of this analysis is that target enrollment growth for the region as a whole between 2000 and 2015 is not much greater...

This article examines a number of discourses that construct students 'problems' as they engage with tertiary study at a historically black South African university. These dominant discourses are then linked to Street's 'autonomous' model of literacy and Rampton's 'autonomous' model of applied linguistics in order to interrogate their ideological biases. Implications of the discourses for the provision of epistemological access to tertiary study are then explored. The article ends by...

In this paper we examine the ways in which teachers, enrolled on an in-service programme in South Africa, have taken up learner-centred practices. We introduce the notions of forms and substance in learner-centred teaching and describe how these are developed in the programme. We then analyse the teachers’ practices in these terms, using data from classroom observations and interviews. We argue that teachers take up learner-centred practices in different ways. The majority of teachers took...

In this paper we examine the ways in which teachers, enrolled on an in-service programme in South Africa, have taken up learner-centred practices. We introduce the notions of forms and substance in learner-centred teaching and describe how these are developed in the programme. We then analyse the teachers’ practices in these terms, using data from classroom observations and interviews. We argue that teachers take up learner-centred practices in different ways. The majority of teachers took...

In this paper we examine the ways in which teachers, enrolled on an in-service programme in South Africa, have taken up learner-centred practices. We introduce the notions of forms and substance in learner-centred teaching and describe how these are developed in the programme. We then analyse the teachers’ practices in these terms, using data from classroom observations and interviews. We argue that teachers take up learner-centred practices in different ways. The majority of teachers took...

In this paper we examine the ways in which teachers, enrolled on an in-service programme in South Africa, have taken up learner-centred practices. We introduce the notions of forms and substance in learner-centred teaching and describe how these are developed in the programme. We then analyse the teachers’ practices in these terms, using data from classroom observations and interviews. We argue that teachers take up learner-centred practices in different ways. The majority of teachers took...

Despite the growing popularity of participatory peer education as an HIV-prevention strategy worldwide, our understandings of the processes underlying its impact on sexual norms are still in their infancy. Starting from the assumption that gender inequalities play a key role in driving the epidemic amongst young people, we outline a framework for conceptualizing the processes underlying successful peer education. We draw on the inter-locking concepts of social identity, empowerment (with...

Despite the growing popularity of participatory peer education as an HIV-prevention strategy worldwide, our understandings of the processes underlying its impact on sexual norms are still in their infancy. Starting from the assumption that gender inequalities play a key role in driving the epidemic amongst young people, we outline a framework for conceptualizing the processes underlying successful peer education. We draw on the inter-locking concepts of social identity, empowerment (with...

Despite the growing popularity of participatory peer education as an HIV-prevention strategy worldwide, our understandings of the processes underlying its impact on sexual norms are still in their infancy. Starting from the assumption that gender inequalities play a key role in driving the epidemic amongst young people, we outline a framework for conceptualizing the processes underlying successful peer education. We draw on the inter-locking concepts of social identity, empowerment (with...

Despite the growing popularity of participatory peer education as an HIV-prevention strategy worldwide, our understandings of the processes underlying its impact on sexual norms are still in their infancy. Starting from the assumption that gender inequalities play a key role in driving the epidemic amongst young people, we outline a framework for conceptualizing the processes underlying successful peer education. We draw on the inter-locking concepts of social identity, empowerment (with...

Despite the growing popularity of participatory peer education as an HIV-prevention strategy worldwide, our understandings of the processes underlying its impact on sexual norms are still in their infancy. Starting from the assumption that gender inequalities play a key role in driving the epidemic amongst young people, we outline a framework for conceptualizing the processes underlying successful peer education. We draw on the inter-locking concepts of social identity, empowerment (with...

Despite the growing popularity of participatory peer education as an HIV-prevention strategy worldwide, our understandings of the processes underlying its impact on sexual norms are still in their infancy. Starting from the assumption that gender inequalities play a key role in driving the epidemic amongst young people, we outline a framework for conceptualizing the processes underlying successful peer education. We draw on the inter-locking concepts of social identity, empowerment (with...

Tuberculosis, although both preventable and treatable, continues to be the world's leading cause of death from an infectious agent.To extend the results of our previous study of knowledge and practices of final year medical students regarding tuberculosis at three medical schools from endemic and nonendemic areas and to describe their attitudes.Eight statements assessing attitudes, as part of a larger survey, were administered to final year medical students at McMaster University in Canada,...

Despite three decades of research on African American English (AAE), educational workshops aimed at improving the academic achievement, particularly the literacy achievement, of African American students still emphasize differences between Standard English and African American English. One result is that teachers may overlook the linguistic resources of their African American students. A challenge for the research community now is to investigate how features of African American English might...