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Abstract A model of the thermal, compositional, density, and seismological structure of the lithospheric and sublithospheric mantle along a 500-km transect across the Namibian volcanic passive margin is presented. This margin juxtaposes old oceanic lithosphere and a Precambrian continental domain. The model combines within an internally consistent framework data from petrology, mineral physics, and geophysical observables. The calculated mantle temperature and density distributions down to a...

Sex education is the cornerstone on which most HIV/AIDS prevention programmes rest and since the adoption of Outcomes-Based Education (OBE), has become a compulsory part of the South African school curriculum through the Life Orientation learning area. However, while much focus has been on providing young people with accurate and frank information about safe sex, this paper questions whether school-based programmes sufficiently support the needs of young people. This paper is based on a...

This study highlights the factors that contribute to excellence in urban science teaching as pinpointed by five urban African‐American science teachers who have taught successfully in the urban system for over 10 years. These teachers shared their experiences and reflections on the qualities that contributed to their success and persistence as urban science teachers. Their ability to understand and care for their students was a major contributing factor; other contributing factors included...

This study monitor how to management the water stored after High Dam in the biggest artificial global lake (Lake Nasser), Integration of physical features and water level changes within the lake curse and margins. Statistical data presented, interpreted and correlated with using remote sensing technique in change detection. Different Landsat images acquired at different times (1970, 1982, 1987, 2000, 2003 and 2008) have been used by the ERDAS and ARC-GIS techniques to estimate the movements...

An interview with Ivor Blumenthal : CEO of the Services SETA : a case for recognition of prior learning in South Africa

Popular struggles for social justice in Africa and elsewhere are often couched in terms of demands for better governance. But the new consensus over ‘good governance’ supported by international financial institutions represents a much narrower programme of reform based on neoclassical economic theory. This agenda focuses on developing governance attributes in Africa that are theoretically supposed to enhance growth by making markets more efficient. Some of these governance capabilities (such...

Sago starch is an important food in lowland Papua New Guinea (PNG), however cases of severe illness following its consumption have been documented. A hazard analysis of traditional sago starch production and consumption was conducted, based on observations of the preparation process, and findings from sociological and microbiological studies. Hazards identified included common pathogenic bacteria and toxigenic fungi. Critical control points (CPP) were identified at various stages of the...

(1) LSCE, CEA-CNRS-UVSQ, CEA/Saclay, 91191 Gif sur Yvette, France (christophe.grenier@lsce.ipsl.fr), (2) LASG, Institute of Atmospheric Physics, No. 40 Huayanli, Chaoyang District, 1000029 Beijing, China, (3) Laboratoire de Glaciologie et Geophysique de l’Environnement. LGGE/CNRS. 54 rue Moliere, BP 96. 38402 St Martin d’Heres Cedex, France, (4) Observatoire Aquitain des Sciences de l’Univers, UMR 5804 – LAB, 2 rue de l’Observatoire BP 89, 33270 Floirac, France

This qualitative study explores pedagogical practices and student responses in three community college learning communities targeting African American students. Using classroom observations, instructor and student interviews, and student focus groups, the study examines how instructors teach in race-based programs and how students respond to these pedagogies. The study uses a conceptual model that integrates retention theory, critical race theory, and integration of instruction and student...

With the aid of universities Environmental Management Systems (EMSs) were developed and implemented in 39 primary schools in Northern Gauteng and Southern Limpopo Provinces, South Africa in 2005. Between 2006 and 2008, the assisting universities monitored the implementation process to evaluate the progress the schools made in environmental management and performance. The monitoring results exposed the main parameters, which lead to an improvement of the environmental performance of the...

Previous articleNext article No AccessWaves of Educational Model Production: The Case of Higher Education Institutionalization in Malawi, 1964–2004Dana G. HollandDana G. Holland Search for more articles by this author PDFPDF PLUSFull Text Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail SectionsMoreDetailsFiguresReferencesCited by Comparative Education Review Volume 54, Number 2May 2010 Sponsored by the Comparative and...

April 6, 2009, marked the fifteenth anniversary of the beginning of the Rwandan Genocide. In 1994, international outcry was not immediately forthcoming, but the commitment made by the United Nations Security Council for an international criminal tribunal to bring those who were responsible for the genocide to justice was an important statement condemning the actions of many Rwandans. The International Criminal Tribunal for Rwanda (“ICTR”) had many legal issues to face, but the most...

Drought is a complex and insidious natural hazard. It is hence difficult to detect in its early stages and to monitor its spatial evolution. Defining drought is already a challenge and can be done differently by meteorologists, hydrologists or socio-economists. In each one of these research areas, various indicators were already set up to depict the development of drought. However they are usually considering only one aspect of the phenomenon. The development of integrated indicators could...

The Mutual Ostracod Temperature Range (MOTR) method has so far been applied only in the European Pleistocene, where it is proving effective in producing past air temperature range estimates that compare well with those obtained by other proxy methods (Horne, 2007; Horne & Mezquita, 2008; Holmes et al., in press). As an essential preliminary step towards applying the method in southern Africa, we have calibrated a training set of living ostracod species’ distributions against a modern climate...

Introduction Newspapers provide up-to-date information on local, state/provincial, national, and world issues. They are among the most widely-read periodicals that are available and accessible to the vast majority of people of all ages and walks of life in any community. Every category of reader can find some important, current, and interesting information in newspapers. Today's use design elements that make information easily accessible to the reader. For example, important stories have...