439 results on '"Dc"'
Search Results
2. WET-EcoServices version 2: A revised ecosystem services assessment technique, and its application to selected wetland and riparian areas
- Author
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Kotze, DC, Macfarlane, DM, Edwards, RJ, and Madikizela, B
- Published
- 2020
3. Impact of invasive alien plants on water provision in selected catchments
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Preston, IR, Le Maitre, DC, Blignaut, JN, Louw, L, and Palmer, CG
- Published
- 2018
4. Using network analysis to analyse the complex interaction of factors causing the failure of small-scale water infrastructure (SWI) in the rural areas of South Africa
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Sambo, DC, Senzanje, A, and Dhavu, K
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- 2018
5. Characterising the water use and hydraulic properties of riparian tree invasions: A case study of 'Populus canescens' in South Africa
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Ntshidi, Z, Gush, MB, Dzikiti, S, and Le Maitre, DC
- Published
- 2018
6. Effects of land use change on streamflow and stream water quality of a coastal catchment
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Petersen, CR, Jovanovic, NZ, Le Maitre, DC, and Grenfell, MC
- Published
- 2017
7. Computers in Secondary Schools in Developing Countries: Costs and Other Issues (Including Original Data from South Africa and Zimbabwe).
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World Bank, Washington, DC. Human Development Network., World Bank, Washington, DC., Department for International Development, London (England)., and Cawthera, Andy
- Abstract
This research is mainly concerned with the costs of computers in schools in developing countries. It starts with a brief overview of the information revolution and its consequences. It then briefly examines some of the arguments for the use of computers in schools in developing countries, before reviewing previous work undertaken on the costs of such provision. An analysis of this literature indicates that the costs of equipment (hardware and software) may account for only 16 to 20% of the total cost of computer provision (excluding salaries) over five years. The cost data gathered at school/telecenter level, as a part of this research, is then analyzed. A framework that yields data on housing, equipment, training, running and external support costs was developed and used to gather this data. The data is categorized into Basic, Basic plus and Deluxe provision. Basic and Basic plus provision use second-hand /refurbished equipment, with Basic plus provision also providing raining and support. Only Deluxe provision purchases new equipment. In addition to this, a rural school, community based telecenter provision and commercial provision are looked at. The data supplied is analyzed with various figures being produced for the different categories. The paper then raises other issues which can affect computer provision and utilization including the processes of allocating provision, training of teachers in the use of ICT and models of provision. Conclusions are then drawn and recommendations made. A glossary of acronyms and technical terms is provided. Eighteen tables are included. Appendixes include: efficiency calculations; centrally financed government provision; details of community-based telecenter provision supplied by the U.S.; adjustments made to data received; and reflections on this research and what can be learned for future research. (Contains 10 references and 18 tables.) (AEF)
- Published
- 2002
8. Methods and Skills for Research on Foreign Educational Systems. A Report on the NASFA/EAIE 1994 Seminars (Coral Gables, Florida, June 3-5 [and] Cambridge, England, United Kingdom, November 22-23). PIER World Education Series.
- Author
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American Association of Collegiate Registrars and Admissions Officers, Washington, DC., NAFSA - Association of International Educators, Washington, DC., and Aldrich-Langen, Caroline
- Abstract
The report presents results of two seminars, held in Miami (Florida) and Cambridge (England), in which representatives of two groups, The European Association for International Education and the National Association for Foreign Student Affairs: Association of International Educators, met for intensive discussion of the methods for and design of research on foreign educational systems. This inquiry emerged from the need to improve credential evaluation for admission, placement, and transfer of students across systems. The first seminar focused on content needed in a monograph describing a country's educational system, and resulted in a generic model outline or table of contents, which was tested and refined using the examples of Brazil, Chile, and Mexico. The second seminar group tested the model outline further against Ghana and South Africa, and continued to discuss and develop a generic model for planning and executing a research project, from problem identification to production of the monograph. The model outline and recommended research strategies are presented here, with notes on adaptations for projects in the five countries noted. Appended materials include a worksheet for gathering information, background papers on research methods, designs, and strategies, participant reports and observations, and a list of seminar participants. (MSE)
- Published
- 1995
9. Overview of A.I.D. Basic Education Programs in Sub-Saharan Africa.
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Agency for International Development (IDCA), Washington, DC. and Academy for Educational Development, Washington, DC.
- Abstract
Since 1989, the United States Agency for International Development (AID) Africa bureau has operated under an Agency-wide Congressional Basic Education earmark, which specifically required the creation of five new basic education programs in sub-Saharan Africa between 1989 and 1991. The Bureau exceeded that goal by initiating primary education programs in Mali in 1989, in Guinea and Ghana in 1990, in Benin, Malawi, and Namibia in 1991, and in Uganda in 1992. These programs join ongoing assistance efforts in Botswana, Lesotho, South Africa, and Swaziland. Most of these programs, especially the more recent ones, exhibit substantial policy content and careful coordination with other donors. Each aims to help African countries increase the efficiency, equity, and quality of primary education. However, the tremendous variety that exists across the continent requires different approaches to educational reform. This report illustrates both the strategic consistency running through all of the Africa Bureau's educational programs and the variations that address country-specific problems and goals. The report has two main sections: (1) a brief general description of the problems facing African education and data illustrating these problems; (2) 11 country-specific descriptions of A.I.D.'s bilateral educational programs which either ended in or continued beyond 1992. (CDIE)
- Published
- 1993
10. The White House Conference on Global Literacy
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Agency for International Development (Dept. of State), Washington, DC.
- Abstract
Literacy is power--the power to improve one's life and shape one's community. All people should know how to read and write, yet 771 million people (18 percent of the world's population) are illiterate. The programs described in this booklet address this challenge. They are samples of a few of the many hundreds of excellent programs around the world that are designed to empower people through literacy. The booklet describes programs in English, French, Spanish, and Arabic.
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- 2006
11. Creating New Meanings in Leading Learning. Proceedings [of the] National Conference on Alternative and External Degree Programs for Adults (22nd, Pittsburgh, PA, October 9-12, 2002).
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American Council on Education, Washington, DC. and Adult Higher Education Alliance.
- Abstract
These proceedings are comprised of 25 presentations divided into 5 "tracks." Section I, Diversity and Social Justice, has "Free to Learn with Body and Soul Jazz Divas, Beat Poets, and Street Preachers" (Ferrante, Belcastro); "Clashing Cultures in Our Classrooms" (Gabrich, Rothenberger); "Encouraging Adults in College to Engage with Inclusive Communities" (Lauderdale et al.); and "Cultural Identity and Classroom Architecture" (Reinhart, Thomas). Section II, Ethics and Leadership Track, has "Passion for the Impossible" (Alverson, Crossen); "Leading Learning by Assuring Distance Instructional Technology Is an Ethical Enterprise" (Balmert, Ezzell); and "Moral Leadership and the Role of the Adult Educator" (Ursery). Section III, Instructional Technology and Leadership, has "Pedagogy, Technology, and Learning Styles" (Beaumaster, Long); "Mentoring Program for New Associate Faculty Members of the School of Professional Studies at Eastern University" (Boyd); "Using Distance Education Technologies to Enhance In-Class Discussion Among Older Learners in an Institute for Learning in Retirement" (Clarke); "Letting Learners Lead" (Kent); "Using the Web to Sustain an Academic Community" (Mandell, Rounds); and "Hybrid Distance Learning Format" (Martyn, Bash). Section IV, Communities of Learners, has "Fostering a Community of Learners in a Corporate-College Setting" (Grapin et al.); "Covey's Habits and Synergetic Learning Community" (McGarrity et al.); "'Will You Be My Critical Friend?'" (Megarry); "What Makes a Cohort a Learning Community?" (Miller); and "Internship Partnerships for Enrichment" (Smith). Section V, Leadership and Organizational Change, has "Interdisciplinary Learning as Preparation for Leadership" (Ashbrook et al.); "Putting the Focus on Organizational Learning" (Boyce); "Figuring Out What Matters in Collaborative Programs" (Ezzell, Turner); "Orienting Adult Students for a Successful Transition into College" (Flaherty); "Importance of Creating a 'Sense of Community' Within an Adult Student Cohort" (Harris); "Inquiry into the Factors Influencing the Success of the Under Prepared Adult Student" (Luke); and "Spinal Adjustment" (Norris, Richter-Hauk). (YLB)
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- 2002
12. Approaches to Civic Education: Lessons Learned. Technical Publication Series.
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Agency for International Development (IDCA), Washington, DC. Office of Democracy and Governance.
- Abstract
This report considers lessons learned from a multi-part research investigation into United States Agency for International Development's (USAID) civic education programming. To better understand how and under what conditions civic education contributes to the development of a more active and informed democratic citizenry, USAID initiated the study in the Dominican Republic, Poland, and South Africa to measure the impact of adult and school-based civic education programs focusing on participants' democratic behaviors and attitudes. Results show that civic education programs for adults can have a significant, positive impact on certain key aspects of democratic behaviors and attitudes. Civic education appears to contribute to greater rates of political participation among program participants, particularly at the local level. Civic education programs appear to have minimal effect on changing democratic values, such as political tolerance, and, in fact, appear to have a negative impact on some values, such as trust in political institutions. Findings for school-based civic education programs mirror those for adult programs, although the impact of civics training was generally weaker and more inconsistent for students than for adults. The key finding to emerge, applying to both adult and school-based programs, was that course design and quality of instruction are critical to the success of civic education programs. The report has six parts: (1) "Introduction"; (2) "Civic Education, Democracy, and USAID's Approach" (School-based Civics Programs; Adult Civic Education; USAID Programs; Key Variables in Civic Education Programs); (3) "Report Findings" (Adult Findings; School Findings); (4) "Recommendations and Lessons Learned"; (5) "Conclusion"; and (6) "Want to Know More?" (BT)
- Published
- 2002
13. Funding South African Higher Education: Steering Mechanisms To Meet National Goals.
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Institute for Higher Education Policy, Washington, DC., Merisotis, Jamie P., and Gilleland, Diane S.
- Abstract
This report offers an array of steering mechanisms to help advance South Africa's higher education goals (equity and redress, efficiency, development, and accountability). Building on the experiences of other nations, the paper proposes both base formulas and non-base funding mechanisms that, combined, suggest that such policy-driven steering devices are not only possible, but also desirable in these times of rapid change and increasing instability for higher education. The paper uses three examples (the use of 3-year rolling averages, the realignment of government contribution factors, and the use of a performance-based mini-formula) to demonstrate how these proposals might impact the distribution of base funds. It also illustrates how a new non-base funding stream of performance-oriented mechanism could be developed. The paper focuses on: the higher education funding context in South Africa; a description of steering mechanisms; the overarching purposes of steering; and policy-driven steering mechanisms. The paper concludes that development of the new funding system must be simultaneous with the restructuring of the entire institutional landscape. Appended are: data on South African higher education trends and influences, a glossary of abbreviations, and a table on alternative calculations of subsidy students. (Contains 31 references.) (SM)
- Published
- 2000
14. Civic Education in South Africa: The Impact of Adult and School Programs on Democratic Attitudes and Participation.
- Author
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Management Systems International, Washington, DC., Finkel, Steven E., and Stumbras, Sheryl
- Abstract
A study examined the impact of civic education programs on political participation and democratic attitudes among adults and high school students in South Africa. The study represents an extension of a similar assessment of civic education programs in the Dominican Republic and Poland. Questionnaires were administered by a professional survey company to samples of individuals who had been trained in different civic education programs. The questionnaires were designed to measure individuals' participation in politics, their knowledge about the political system, and their adherence to a series of democratic norms and values such as tolerance, trust, and belief in their ability to influence the political process. Respondents (n=15,550) were from 44 areas in 8 of South Africa's nine provinces. Overall findings showed unequivocally that civic education can matter for the development of democratic political culture, but it can do so only when it is conducted in the ways that are identified in this study. It is strongly recommended that policymakers take these findings into account when designing future civic education programs. Following an Executive Summary, this study report is divided into seven parts: (1) "Overview of Study"; (2) "Study Methodology"; (3) "Results: South African Adults"; (4) "Results: South African Students"; (5) "Qualitative Findings"; (6) "Recommendations for Civic Education Program Design"; and (7) "Conclusion." Appended are the survey questionnaire; the full regression results for adults; and the full regression results for students. (Contains 26 references.) (BT)
- Published
- 2000
15. Diversity, Democracy, and Higher Education: A View from Three Nations--India, South Africa, the United States.
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Association of American Colleges and Universities, Washington, DC. and Beckham, Edgar F.
- Abstract
This publication includes six essays that were presented at the first of three tri-national seminars on diversity issues in higher education. The seminars brought together representatives and observers of higher education from India, South Africa, and the United States to explore the role of higher education in promoting understanding of human differences and challenges and the opportunities it presents to democratic societies. The first three chapters provide an overview of the historical context in which diversity issues are embedded in South Africa, the United States, and India. The next three discuss issues of special relevance to each country: higher education governance in South Africa, faculty development in the United States, and affirmative action in India. Chapters are: (1) "South African Higher Education: Diversity Overview" (Nasima Badsha and Ann Harper); (2) "A Brief Sociohistorical Odyssey of the American University through a Lens of Cultural Diversity" (Troy Duster); (3) "The Dynamics of Diversity and Higher Education: Initiatives and Challenges in the Indian Context" (Jayalakshmi Indiresan); (4) "Governance Arrangements in South African Higher Education" (Rahmat Omar and Brian Figaji); (5) "Faculty Development and Democratic Spaces of Possibility: Building Communities of Knowledge, Inclusion, and Commitment" (Caryn McTighe Musil); and (6) "Affirmative Action Policies in Higher Education: The Indian Experience" (Mool Chand Sharma). (All chapters contain references and/or endnotes.) (SM)
- Published
- 2000
16. Improving Breastfeeding Behaviors: Evidence from Two Decades of Intervention Research.
- Author
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Academy for Educational Development, Washington, DC. and Green, Cynthia P.
- Abstract
This report summarizes research on interventions intended to improve four key breastfeeding behaviors: early initiation of breastfeeding, feeding of colostrum to newborns, exclusive breastfeeding for the first 0-6 months, and continued breastfeeding through the second year and beyond. It clarifies what is known about improving these practices in order to guide program planners and managers. Over 50 studies worldwide were identified that had an intervention designed to influence one of the four behaviors and reported data on one or more of those behaviors. Results indicated that only 1 of the 51 studies examined the impact of national policy changes, and few examined the impact of prenatal education in isolation from other interventions. Some results suggested that prenatal education, when combined with other interventions (e.g., training of health providers and access to outpatient breastfeeding support clinics) related to improved breastfeeding practices. Many studies documented the impact of changing hospital practices, noting that counseling and discharge packs supporting breastfeeding, and training of hospital staff in lactation management, dramatically impacted exclusive breastfeeding rates. Most studies suggested that peer counseling and social support positively impacted initiation of breastfeeding, giving of colostrum, and exclusive breastfeeding. Evidence regarding the impact of postpartum counseling and guidance by health workers was mixed. An appendix presents detailed tables on interventions to improve breastfeeding behaviors. (Contains 115 references.) (SM)
- Published
- 1999
17. Women Workers in South Africa: Participation, Pay and Prejudice in the Formal Labor Market.
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World Bank, Washington, DC. Human Development Network. and Winter, Carolyn
- Abstract
Although concern over labor market inequities in South Africa has focused almost exclusively on racial differences in labor force participation and pay, gender also has been important, since women do not enjoy the same access, opportunities, and rewards in the formal labor market as men, especially among races traditionally subject to discrimination. This report used data from the 1994 October Household Survey (OHS) to study gender differences in formal labor market participation and pay and to determine the factors that underlie the differences. The report centers on four questions: (1) Are there substantial differences in women's and men's labor market participation? (2) Do different factors influence their participation? (3) Is there a significant gender wage gap? and (4) Is there evidence that gender wage discrimination is widespread? The data are sufficiently detailed to analyze workers' educational levels, age, occupations, race, general economic status, and earnings; they also support econometric analyses that identify the most important determinants of participation and pay, and the extent to which gender pay differentials might be due to discrimination, as well as identifying issues on which more study is needed and suggesting possible policy interventions. Following an introduction and definitions (Section 1), the report contains these sections: (2) "Gender and Labor Force Participation"; (3) "Gender and Labor Market Wages"; and (4) "Summary of Findings and Policy Implications." (Contains 16 tables, 3 boxes, 7 figures, and 16 references. Extensive data are appended.) (BT)
- Published
- 1999
18. Science and Environment Education Views from Developing Countries. Secondary Education Series.
- Author
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World Bank, Washington, DC. Human Development Network., Ware, Sylvia A., Ware, Sylvia A., and World Bank, Washington, DC. Human Development Network.
- Abstract
This document is the first in the Secondary Education Series and is a product of the cooperation between the Human Development Network Education Team and the Human Development Sector Unit of the Latin American and Caribbean Region. The purpose of this book is to demonstrate the present valuable information found in developing nations and the educational reforms implemented in these countries in recent years. Contents include: (1) "Overview of the Reform Agenda" (Sylvia A. Ware); (2) "On the Road to Improving the Quality of Life: Environmental Education in the Costa Rican Education System" (Eduardo Doryan and Eleonora Badilla); (3) "Adaptation of the U.S. ChemCom Course for Secondary School Students in Krasnoyarskii Krai, Siberia, Russia" (Natalia E. Gapanovitch and Natalia P. Tarasova); (4) "School-Industry Cooperation in the Republic of Slovenia: Does It Exist?" (Margareta Vrtacnik and Sascha A. Glazar); (5) "Advances and Obstacles to the Reform of Science Education in Secondary Schools in Mexico" (Andoni Garritz and Vicente Talanquer); (6) "Chilean Education Reforms during the Current Century" (Manuel M. Martinez and Raul F. Ceron); (7) "The Science Teachers Association of Nigeria: Forty-One Years of Service to Science Teaching" (Samuel Bajah); (8) "School Laboratories in Developing Countries: Are They Worth the Effort and Expense?" (Erik W. Thulstrup); (9) "Science and Technology Education in Developing Countries: Low Cost, Locally Made Instrumentation" (Krishna V. Sane); (10) "Science Education at the RADMASTE Center: The Role of a University in Development" (John D. Bradley); (11) "Meeting the Needs of Science Teachers and Students: The Philippines Experiment" (Warren Beasley); (12) "Secondary Science Education in Thailand" (Roger G. H. Downer and Karma Rana); (13) "Toward a Comprehensive Strategy for Science Curriculum Reform and Teacher Development in Southern Africa" (Leo P. de Feiter and Kenneth Ncube); (14) "Challenges to Reforming Science Education in South Africa: What Do the Third International Mathematics and Science Survey Results Mean?" (Sarah J. Howie); (15) "The Internet in Our Classroom: Teaching Tomorrow's Skills for Tomorrow's World" (Boris Berenfeld); and (16) "Environmental Education: The Millennium Challenge" (Jacob Bregman, Sr. and Morten Fisker). (YDS)
- Published
- 1999
19. Scientific American Frontiers Teaching Guides for Shows 701-705, October 1996-April 1997.
- Author
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Connecticut Public Television, Hartford. and Public Broadcasting Service, Washington, DC.
- Abstract
These teaching guides are meant to supplement the seventh season (1996-97) of the PBS Series "Scientific American Frontiers". Episode 701 is entitled "Inventing the Future: A Tour of the MIT Media Lab" and the teaching guide contains information and activities on a virtual pet dog, computers of the future, a smart car designed to prevent accidents, wearable computers, and an interactive opera using hyperinstruments. The teaching guide for Episode 702, entitled "Science Safari: A Scientific Expedition through South Africa", includes information and activities on controlling malaria, hominid fossils found in South Africa, a 16th-century royal burial site, wildlife management in South African nature parks, and attempts to save wild plants from extinction. Episode 703 is entitled"Pieces of Mind: Inside the Human Brain" and features information and activities on split-brain patients, the emotional aspects of memory, false memory, REM sleep, and language learning. Episode 704 is entitled "Going to Extremes: Testing Nature's Limits" and contains information and activities on funnel web spiders, the physiology of mountain sickness, the biomechanics and physiology of the cheetah and the pronghorn antelope, frogs and fish that survive extremely cold temperatures, and new ocean species discovered by the Monterey Bay Aquarium Research Institute. Episode 705 is entitled "Robots Alive! Robots with Minds of Their Own" and presents information and activities on robots that navigate mazes and clean tennis courts, a van that drives itself, teaching a robot to walk on two legs, the attempt to create artificial intelligence, and the Aerial Robotics Competition. (WRM)
- Published
- 1996
20. South Africa In Transition, Curriculum Units and Study Guide, Grades 6-8. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
- Author
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Center for International Education (ED), Washington, DC. and Tancig-Brown, Juana
- Abstract
This curriculum unit is designed to allow students to evaluate the social, cultural, political, and economic changes occurring in South Africa. Specially prepared portfolios serve as mini-museums and historical archives for study. Examples of historical and contemporary popular culture are included. Numerous documents, activities and resources are offered, along with study questions and information for additional inquiry. (EH)
- Published
- 1996
21. 'Cry, the Beloved Country.' Bill of Rights/Human Rights Project. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
- Author
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Center for International Education (ED), Washington, DC., Mura, Katherine, and Finch, John
- Abstract
This unit is based upon study of Alan Paton's novel, "Cry, the Beloved Country," and includes a writing component in which students create an original Bill of Rights for the new Republic of South Africa. To create the new Bill of Rights, students study three basic human rights documents and work in groups to write the finished product. Appended sample materials that can be used to complement social studies/history resources are included. (EH)
- Published
- 1996
22. The New South Africa: A Major Power in Transition. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
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Center for International Education (ED), Washington, DC. and Icolari, Ellen
- Abstract
This interdisciplinary and multi-modal curriculum unit provides a context for studying South Africa in grades 5-12. Three aspects of the post-apartheid Republic of South Africa are highlighted, including: (1) "Revisiting the Past": a brief history of South Africa's political and social climate; (2) "Beginning the Transformation": an overview of the Reconstruction and Development Plan; and (3) "The Future, A Brighter Day?": summaries of conversations with South African young people. (EH)
- Published
- 1996
23. Perceptions of the People of the New South Africa. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
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Center for International Education (ED), Washington, DC. and Ridarelli, Carol Marie
- Abstract
This unit includes objectives, content, and activities to help students actively explore and analyze the changes that have been affecting the people of South Africa since the end of apartheid. The lessons use materials from interviews with people from a variety of South African backgrounds and their perceptions of the changes in their country. (EH)
- Published
- 1996
24. Reflections on Apartheid in South Africa: Perspectives and an Outlook for the Future. A Curriculum Unit. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
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Center for International Education (ED), Washington, DC. and Warnsley, Johnnye R.
- Abstract
This curriculum unit is designed for students to achieve a better understanding of the South African society and the numerous changes that have recently occurred. The four-week unit can be modified to fit existing classroom needs. The nine lessons include: (1) "A Profile of South Africa"; (2) "South African Society"; (3) "Nelson Mandela: The Rivonia Trial Speech"; (4) "African National Congress Struggle for Justice"; (5) "Laws of South Africa"; (6) "The Pass Laws: How They Impacted the Lives of Black South Africans"; (7) "Homelands: A Key Feature of Apartheid"; (8) "Research Project: The Liberation Movement"; and (9) "A Time Line." Students readings, handouts, discussion questions, maps, and bibliography are included. (EH)
- Published
- 1996
25. South Africa: A Nation in Transition. A S.E.E.D.S. 'Food for Learning' Curriculum Module. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
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Center for International Education (ED), Washington, DC. and Wright, Jacqueline
- Abstract
The SEEDS (Service, Education, Economic Development, Science), Inc. program was co-founded by the author as an interdisciplinary project to extend learning experiences with similar-age students from various countries, cultures and backgrounds. The year-long curriculum focuses on the range of South African student and societal experiences. This paper describes subject specific activities for individuals and collaborative groups. Interdisciplinary project ideas are also presented. (EH)
- Published
- 1996
26. From Segregation/Apartheid to Democracy in South Africa. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
- Author
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Center for International Education (ED), Washington, DC. and St. Hill, Yvonne
- Abstract
This curriculum unit is intended to help students understand the tremendous social and political changes in South Africa that have occurred with the ending of apartheid. The unit contains four modules: (1) "Segregation/Apartheid"; (2) "Effects of Apartheid"; (3) "Transitional Process from Apartheid to Democracy"; and (4) "Observations." Background information and facts about South Africa are presented. (EH)
- Published
- 1996
27. Journey to South Africa: A Cultural Experience, Grade 7. Performance-Based Instructional Task. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
- Author
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Center for International Education (ED), Washington, DC. and Giampaolo, Chloe
- Abstract
This interdisciplinary two-week unit simulates a trip to South Africa as part of a U.S. delegation sent to observe what is happening politically, economically, and culturally in the post-apartheid transition. Students explore and experience a number of real-life events and situations which might be encountered on an actual trip. The tasks incorporate the disciplines of social studies, reading, English, mathematics, science, and health. (EH)
- Published
- 1996
28. The Apartheid Struggle, Curriculum Module. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
- Author
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Center for International Education (ED), Washington, DC. and Wilkes, Shelley
- Abstract
This curriculum unit is designed for secondary students in twentieth-century history and peace studies. The unit contains three activities from which students gain a better understanding of the dimensions of apartheid in South Africa. The activities are entitled: (1) "Racial Separation," an activity that gives students the opportunity to identify and research three distinct levels of social separation practiced in South Africa--"petty apartheid,""urban segregation," and "grand apartheid"; (2) "Images of Defiance," an activity where students are shown samples of Soweto Day posters and are asked to design and produce their own student protest posters; and (3) "South Africa: Free at Last!" an activity where students read an article concerning the triumph and challenges of South Africa's new multiracial government and then respond to questions. (EH)
- Published
- 1996
29. Curriculum Project: Outline for a Slide Illustrated Lecture on Education Reform in South Africa. Fulbright-Hays Summer Seminar Abroad 1996 (South Africa).
- Author
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Center for International Education (ED), Washington, DC. and Furlott, Sheri
- Abstract
This project attempts to identify the major problems underlying education reform in South Africa and compares them with similar challenges facing the District of Columbia public education system. Narration for the slide program is based on interviews, formal and informal meetings, lectures, and briefings. Slides of various schools and communities provide additional insights into the organization, inhabitants, and functions of specific environments and populations. The paper provides a geographic overview, a historic overview, and an examination of apartheid conditions; it also examines current challenges in politics, economics, health, and education. (EH)
- Published
- 1996
30. Changing Times in South Africa: Remodeling Interactive Learning. LearnTech Case Study Series, No. 8.
- Author
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Education Development Center, Washington, DC. and Leigh, Stuart
- Abstract
This case study looks at the way in which the fundamental principles and practices of a well-established model of interactive radio instruction (IRI) were examined in light of the way that South Africa now wishes to teach language and mathematics. At stake was IRI's capacity to reinvent itself and still find a useful role for radio in the context of a much greater role for the teacher and employing a problem-solving, pupil-centered learning methodology. This case study documents the process of changing an instructional design. It includes theoretical concerns; issues around the role of the pupil, the teacher, and media in a multichannel setting; new obligations, such as teacher training, as well as student learning; and the challenge to reevaluate many of the existing assumptions about the role of radio in the classroom. The sections include: "Good Reasons for Second Thoughts"; "Rethinking the Role of the Teacher"; "Designing the New Approach"; "Learning Outcomes and Acceptance"; "Original" and "New" Models: What's the Difference?"; "How Well Do the New Models Work?"; and "Reflection on this Model of Change." (Contains 21 references.) (MAS)
- Published
- 1995
31. The Economics of Interactive Instruction: The Case of South Africa. LearnTech Case Study Series, No. 7.
- Author
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Education Development Center, Washington, DC. and Cobbe, James
- Abstract
"English in Action," (EIA) an interactive audio instructional system using instructional cassette or radio, when available, was implemented in first and second grade classrooms in South Africa, in 1993 and 1994, respectively. This case study looks at the economics of alternative ways to implement and expand the "English in Action" system, both with respect to the content and delivery mechanisms of the program and with respect to its organization. It identifies several audiocassette and radio broadcast alternatives, together with three different models of teacher development and support. Class sizes vary considerably in South Africa, as do the costs of reaching urban and rural schools, so the study provides costs of the various strategies for a variety of class sizes and geographic locations. Many design choices vary in cost according to how much support is provided to teachers, so materials costs for classroom materials and for teacher development are estimated separately. Costs vary from around R3.50 (approximately US$1) to R30 (approximately US$8.50) per pupil per year for materials acquisition and airtime costs. The cost of teacher development and support varies from R140 (US$40) per year to R640 (US$180) per teacher for the first, more intensive year, and from R83 (US$25) to R214 (US$60) per teacher in subsequent years for continuing teacher support and development. The utility of the study for other countries is not that it demonstrates that EIA costs a certain amount per pupil in South Africa, but that it demonstrates the cost elements that should be considered when looking at the use of multichannel approaches to learning, and how an economist deals with the economic and political uncertainty when predicting the costs of taking an innovation to scale. Five tables and three figures illustrate data. (MAS)
- Published
- 1995
32. Multichannel Learning: Connecting All to Education.
- Author
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Education Development Center, Washington, DC., Anzalone, Steve, Anzalone, Steve, and Education Development Center, Washington, DC.
- Abstract
Drafted for the Learning Technologies for Basic Education project, this document assembles case studies which provide an overview of multichannel learning, or reinforce learning through the use of several instructional paths and various media including print, broadcast, and online. Through the cases, multichannel learning is depicted as an educational trend which is becoming socially and geographically widespread. The first section discusses the "building blocks" of multichannel learning in three essays: (1) "The Case for Multichannel Learning" (Stephen Anzalone); (2) "The Conceptual Foundations for Multichannel Learning" (Juliet SF. Chieuw & John K. Mayo); and (3) "Can New Technologies Lower the Barriers to Quality Education for All?" (Jan Visser). Cases in the second section concentrate on "pressure points in achieving education for all," specifically: (4) "Multichannel Learning for Nonformal Education in Developing Countries" (Tony Dodds); (5) "The Challenge of Open Secondary Education: Demand and Models" (Paud Murphy); (6) "Multichannel Solutions for Female Education: Focusing on Learning" (Andrea Bosch); and (7) "Multichannel Learning at the Community Level" (Michael Laflin and Micael Olsson). Section 3 is devoted to descriptions of multichannel learning applied in various situations or locales: (8) "Multichannel Learning: The Case of National Open School, India" (M. Mukhopadhyay); (9) Multichannel Learning: The Philippines Experience" (Minda Sutaria); (10) "South Africa: Designing Multichannel Options for Educational Renewal" (Stuart Leigh and others); (11) "Multichannel Approaches in the Multigrade Classroom" (German Vargas); and (12) "Dominican Republic: From the Margins to the Mainstream" (Elizabeth Goldstein and Altagracia Diaz de De Jesus). (BEW)
- Published
- 1995
33. College and University Endowments--Or, Singing the Inflation Blues. AAHE-ERIC/Higher Education Research Currents, February 1980.
- Author
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ERIC Clearinghouse on Higher Education, Washington, DC., American Association for Higher Education, Washington, DC., and Shulman, Carol Herrnstadt
- Abstract
The role of endowments in academic finances of higher education is examined. Two effects of the decline of endowment funding, their failure to keep pace with inflation and loss of income for innovative programs, are cited. The historical role of endowments in institutional finances is reviewed. Present concepts of endowment management are discussed, including the "total return" investment approach and management objectives in the areas of spending policy, portfolio diversification, and endowment growth. The possible effects of ethical issues on endowment funds is illustrated by the South African-related investments. Decisions to divest all South African stocks cause a number of problems for institutions, not only possible loss of revenue due to divestiture costs and lack of sound investment possibilities but also possible loss of potential contributions from business. A current attitude among college and university investors is that their presence in South Africa can contribute to changing current conditions. It is concluded that the decline of endowments' contributions to general institutional revenues is part of the general financial problem in academe, and that current policy seems to dictate a more balanced management approach that would protect endowment principal and seek profit by diversifying the portfolio into several different types of financial markets. (PHR)
- Published
- 1980
34. The Child Indicator: The Child, Youth, and Family Indicators Newsletter, 2002-2003.
- Author
-
Child Trends, Inc., Washington, DC., Brown, Brett, and Smith, Berkeley
- Abstract
This document consists of the 2002-2003 issues of a quarterly newsletter intended to communicate the major developments within each sector of the child and youth indicators field. The newsletters feature regular sections on the community, state, and national scenes, and include sections of resources and data. The Summer 2002 issue includes articles on the impact of the No Child Left Behind Act on state education indicators, the release of the Child Trends data bank, the International Social Survey Program, the 2002 National Youth Summit, and the Philadelphia Safe and Sound organization. The Winter 2003 issue includes articles on results of the California Health Interview Survey, sources of children's health data, a Child Trends research brief series on American teenagers, delays in the implementation of the American Community Survey, and technical assistance workshops for states regarding youth indicators. The Spring 2003 issue identifies new online resources from KIDS COUNT, describes data tools available through the Let's Invest in Families Today Web site, describes recent research from the Innocenti Research Center in Italy, and discusses the role of child well-being indicators in monitoring children in child welfare settings. The Summer/Fall 2003 issue includes articles on Oregon benchmarks, social indicators in the service of social change in South Africa, questions about the National Vital Statistics System, the Indicators of Positive Development Conference, and the Baltimore Neighborhoods Indicators Alliance. (KB)
- Published
- 2003
35. Secondary Education in Africa: Strategies for Renewal. World Bank Presentations at the UNESCO/BREDA-World Bank Regional Workshop on the Renewal of Secondary Education in Africa (Mauritius, Africa, December 2001). Africa Region Human Development Working Paper Series.
- Author
-
World Bank, Washington, DC. and Mastri, Lawrence
- Abstract
During the last 3 decades secondary education has become universal in most industrialized countries. Sub-Saharan African countries face special challenges to benefit from this international trend. The gap between these countries and the rest of the world in coverage, quality, and relevance of secondary education is widening. To address these issues, the Africa region of the World Bank, in cooperation with African educators and institutions, launched the "Study on Secondary Education in Africa" (SEIA). The SEIA study is executed in two phases from 2002 to 2004. During the first phase data and reports are produced; the second phase disseminates results and conducts regional workshops to discuss ways to improve secondary education in Africa. This publication contains presentations made by World Bank staff and consultants during the December 2001 UNESCO/BREDA (United Nations Educational, Scientific, and Cultural Organization/Regional Bureau for Education in Africa)--World Bank Regional Workshop in Mauritius (Africa) on the "Renewal of African Secondary Education." Following a Foreword and Introduction, papers in the publication are: "Secondary Education in Africa (SEIA)" (J. Bregman; S. Stallmeister); "Education Policies and Reform in South Korea" (Gwang-Jo Kim); "Renewal of Secondary Education Curricula and Assessment in South Africa" (S. J. Howie); "Recent Reforms of Science, Mathematics and ICT Education in the Netherlands in Basic and Secondary Education" (M. Pieters); and "Effective Monitoring of the Quality of Education" (F. J. M. A. Rameckers). (BT)
- Published
- 2002
36. The Model U.N. Program: Teaching Unreality. A United Nations Assessment Project Study. The Heritage Foundation Backgrounder No. 282.
- Author
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Heritage Foundation, Washington, DC., Gulick, Thomas G., and Merkle, Melanie L.
- Abstract
An evaluation of the instructional materials used by high school and college students who participated in the Model United Nations Program showed that the program is uncritical of the United Nations (U.N.) and biased against the United States and the West in general. These materials are strongly promoted by many prominent educational professional organizations. Examples of some of the biases found follow. The core curriculum being taught through the materials is the New International Economic Order (NIEO), which teaches that capitalist nations are exploiting poorer nations and that the solution to this exploitation is the massive redistribution of wealth from the developed nations to the Third World. There is no analysis of the internal problems of developing countries. Other curricula support the U.N. continual condemnation of Israel and South Africa, never mentioning PLO terrorist activities, the training of Angola troops by Soviet advisors, or the extensive U.N. funding of Marxist guerilla groups. Other areas of bias were found in the way the materials treated population, food, disarmament, U.N. peacekeeping, and human rights. A balanced program in international affairs is urgently needed. (RM)
- Published
- 1983
37. Critical Perspectives on Schooling and Fertility in the Developing World.
- Author
-
National Academy of Sciences - National Research Council, Washington, DC. Commission on Behavioral and Social Sciences and Education., Bledsoe, Caroline H., Casterline, John B., Johnson-Kuhn, Jennifer A., Haaga, John G., Bledsoe, Caroline H., Casterline, John B., Johnson-Kuhn, Jennifer A., Haaga, John G., and National Academy of Sciences - National Research Council, Washington, DC. Commission on Behavioral and Social Sciences and Education.
- Abstract
The assumption of a causal relationship between more schooling and lower fertility for women has led many governments to support women's education. However, understanding the nature and strength of the relationship between education and fertility remains a central challenge for scholars seeking to explain demographic and social change and for policymakers who must allocate scarce public resources. This book brings together analyses from several research perspectives to re-examine the relationship between education and fertility and to rethink conventional lines of logic in the education-fertility paradigm. The papers are: (1) "Introduction" (Caroline Bledsoe, Jennifer Johnson-Kuhn, and John Haaga); (2) "Female Education and Fertility: Examining the Links" (Ian Diamond, Margaret Newby, and Sarah Varle); (3) "What is Meant, and Measured, by 'Education'?" (Anthony Carter); (4) "Implications of Formal Schooling for Girls' Transitions to Adulthood in Developing Countries" (Cynthia Lloyd and Barbara Mensch); (5) "School Quality, Student Achievement, and Fertility in Developing Countries" (Paul Glewwe); (6) "Fertility, Education, and Resources in South Africa" (Duncan Thomas); (7) "Which Girls Stay in School? The Influence of Family Economy, Social Demands, and Ethnicity in South Africa" (Bruce Fuller and Xiaoyan Liang); (8) "Excess Fertility, Unintended Births, and Children's Schooling" (Mark Montgomery and Cynthia Lloyd); (9) "Women's Education, Marriage, and Fertility in South Asia: Do Men Really Not Matter?" (Alaka Basu); and (10) "Fertility and Education: What Do We Now Know?" (Parfait Eloundou-Enyegue). Each paper contains references. (KB)
- Published
- 1999
38. Area Handbook for the Republic of South Africa.
- Author
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American Univ., Washington, DC. Foreign Area Studies. and Kaplan, Irving
- Abstract
This volume is one of a series of handbooks designed to be useful to military, and other personnel who need a convenient compilation of basic facts about the social, economic, political, and military institutions and practices of various countries. The emphasis is on objective description of the nation's present society and the kinds of possible or probable changes that might be expected in the future. This book is based on a sampling of many published sources, cited in a 40 page bibliography. Also appended is a glossary of Afrikaans and English terms. Another appendix, on South West Africa (Namibia), is included because the Republic of South Africa continues to treat it as a province although its League of Nations mandate was terminated by the United Nations. (Author/DJB)
- Published
- 1970
39. Africana Acquisitions; Report of a Publication Survey Trip to Nigeria, Southern Africa, and Europe, 1972.
- Author
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Library of Congress, Washington, DC. General Reference and Bibliography Div. and Witherell, Julian W.
- Abstract
A publication survey trip to Nigeria, Southern Africa, and Europe was taken by Julian W. Witherell of the African Section of the Library of Congress in 1972. The purpose of the trip was to improve the flow of publications about Africa to the Library of Congress. The trip was successful in that personal contacts helpful in obtaining local materials were strengthened and the interest in exchanging publications was stimulated. However, the author concludes that the success of the Nairobi acquisitions office indicates that the most effective method of acquisitions of African material would be the establishment of additional acquisitions offices in Africa. Descriptions of the publishing situation in Nigeria, South Africa, Botswana, Lesotho, Swaziland, Mozambique, Angloa, Spain, Italy, Hungary, Czechoslovakia, Poland, Sweden, the German Federal Republic and Great Britain are presented. (JG)
- Published
- 1973
40. An assessment of the ecological condition of a wetland on the Lions River floodplain based on soil and vegetation parameters, South Africa.
- Author
-
Ndlovu, H, Kotze, DC, Jewitt, GPW, and Morris, CD
- Subjects
- *
WETLAND soils , *ECOLOGICAL assessment , *WETLANDS , *AERIAL photographs , *INTRODUCED species - Abstract
Wetlands are increasingly exposed to human activities, resulting in degradation. As the wetland degrades, it loses functionality. In South Africa, wetlands can play an important water-regulating role. This study aims to establish the ecological condition of a historically utilised wetland on the Lions River floodplain in the uMngeni catchment, to provide a guide for the planning and implementation of rehabilitation interventions. A comprehensive assessment of the wetland's structure was undertaken in 2014, using vegetation and soil parameters, mapped and compared with changes in landuse on the wetland from historical aerial photographs. The study concluded that the wetland's ecological condition had declined, as a result of historical cultivation and commercial forestry. The wetland vegetation present is still generally aligned with the prevailing hydro-edaphic gradient and soil water regime; however, some areas of the wetland showed a mismatch in the soil water indicators and vegetation wetness indicators (the level of wetness based on vegetation being higher than that showed by the soil), suggesting localised drying out. A moderately high abundance of ruderal indigenous and invasive alien species in 61% of the wetland, particularly the drier areas of the wetland, contributed to the altered ecological condition. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
41. South Africa Divestiture. Target Report No. 11.
- Author
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United States Student Association, Washington, DC. and Saxe, Joel
- Abstract
This student resource guide prepared by the South Africa Catalyst Project for the United States Student Association (USSA) focuses on the student anti-apartheid movement and divestiture activities of American students. Divestiture of university-held stock in U.S. corporations operating in South Africa is the major focus of the student anti-apartheid movement. The USSA is seeking to apply pressure to U.S. corporations and the U.S. government to cease their support of the apartheid economy and military apparatus of South Africa. The history and activities of the U.S. student anti-apartheid movement are summarized. The escalation of student actions in the spring of 1978 in support of college and university divestiture is described. The USSA estimates that 110 schools have anti-apartheid groups. The goals and objectives of the movement are outlined and problems and challenges to divestiture are discussed. The process by which students can investigate university investments is explained, as well as various methods that can be used for divestiture including shareholder resolutions. A discussion of the administration's response to student pressure for divestiture centers on administration-sponsored Investment Advisory Councils and the Sullivan principles. Conflicts of interest relating to the divestiture problem and objections to the sale of Kruggerands in the U.S. are also discussed. A list of resources for anti-apartheid organizing is appended. (BH)
- Published
- 1979
42. Advising South African Students/Background/Current Crisis. NAFSA Field Service Working Paper #2.
- Author
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National Association for Foreign Student Affairs, Washington, DC. Field Service Program. and Emoungu, Winnie D.
- Abstract
Counselors working with students from South Africa need to be aware that the system of apartheid has created separate and unequal societies resulting in major differences in student educational, cultural, political and other backgrounds. In addition, counselors need to be aware of individual differences as well as differences in how people cope with an oppressive system and adjust to a different culture. Because these differences may underlie problems in the counseling situation, they should be considered by program sponsors, foreign student advisors, academic advisors and college counsellors in dealing with student problems related to South Africa, and also in helping South African students realize their goals. Background factors from both black and white South African student perspectives which should be considered are defined and discussed. Crisis situations which affect South African students on college campuses are also identified. It is recommended that the information be used as a frame of reference in academic advisement, counseling and program management. (LPT)
- Published
- 1985
43. If You Want Peace, Defend Life.
- Author
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United States Catholic Conference, Washington, DC., Chagnon, Jacquelyn, Rumpf, Roger, Chagnon, Jacquelyn, Rumpf, Roger, and United States Catholic Conference, Washington, DC.
- Abstract
This booklet, prepared for the 1977 World Day of Peace, examines the growing use of torture by governments around the world. It specifically focuses on torture and imprisonment of political prisoners as systematic violations of human rights. The booklet includes: a background essay which discusses human rights in the context of U.S. foreign policy; a paraliturgy section; an essay of the technology of torture; five case studies; a study and action guide; and a resource section. Argentina, Czechosolvakia, Indonesia, Iran, and South Africa are the five countries selected for the case studies. They were chosen with these criteria in mind: severe and persistant human rights violations; geographic distribution; and relationship to the United States aid and trade policies. The study and action guide outlines the procedures for the adoption of a political prisoner and gives suggestions and ideas for ongoing discussion and action related to the prisoner. Organizations, books, periodicals, and foreign embassies concerned with human rights are listed in the resource section. Though written from a religious point of view, this booklet is appropriate for all groups concerned with human rights. (Author/JK)
- Published
- 1976
44. Southern Africa: A Study of the Educational Systems of Botswana, Lesotho, South Africa, Southwest Africa/Namibia and Swaziland with an Addendum on Zimbabwe-Rhodesia: A Guide to the Academic Placement of Students in Educational Institutions of the United States.
- Author
-
American Association of Collegiate Registrars and Admissions Officers, Washington, DC., Cranmer, David J., and Woolston, Valerie A.
- Abstract
The educational systems of Southern African countries are described, and guidelines concerning the placement of students who wish to study in U.S. institutions are provided. Information is provided on educational levels (primary, secondary, and higher education); and types of programs (technical/vocational education, teacher training, and professional and adult education). Separate sections are provided for (1) the Republic of South Africa; (2) Botswana, Lesotho, Swaziland; and (3) Zimbabwe-Rhodesia. Specific topics concerning higher education include: admissions; grading systems; college transfer; exams; academic records; diplomas and certificates; undergraduate and graduate study; agricultural education, study at technical institutes; technical school diplomas and certificates; teacher training for different educational levels; health professions education; and other professional training (legal, engineering, architecture, accounting). Suggestions for U.S. admissions officers address concerns such as: students' English proficiency, differing standards among schools, diplomas and certificates, and transcripts. Supplementary materials include: a glossary, sample transcripts and diplomas, institutional profiles, and information on entrance requirements for technical programs and duration of technical training. (SW)
- Published
- 1980
45. South Africa: Country Status Report.
- Author
-
Center for Applied Linguistics, Washington, DC. Language/Area Reference Center. and McFerren, Margaret
- Abstract
A survey of the status of language usage in South Africa begins with an overview of the distribution among the population of the official languages, Afrikaans and English, and the principle languages of the Black majority: Zulu, Xhosa, Tswana, Nothern Sotho (Pedi), Southern Sotho, Tsonga, Swazi, and Venda. The influence of apartheid policy on language use and the development of bilingualism are outlined. A matrix follows that rates each of the languages on: (1) their usage rating using State Department classifications; (2) increase and decrease trends by the year 2000; (3) chief of state use in addressing the populace; (4) use in armed forces, government, court, and diplomatic communications, written and oral; (5) use as a language of instruction or required language in higher education, on the secondary and elementary levels, and in adult education; (6) use in the popular press, radio and television broadcasting, and film; (7) business and professional use, written and oral; (8) use in intellectual circles; (9) the alphabet situation; (10) their status in literature; (11) use in public signs and notices; and (12) the availability of instructional materials and dictionaries for use by English speakers. Explanatory notes give the number and population percentages using the languages, the type of alphabets used, and specific instructional material titles. A selected bibliography is also included. (MSE)
- Published
- 1984
46. Conscience and Dividends: Churches and the Multinationals.
- Author
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Ethics and Public Policy Center, Washington, DC. and Oden, Thomas C.
- Abstract
Over the past 20 years there has been agreement in religious circles that the church's economic power and ties with the corporate world entail a moral responsibility. Church leaders within the corporate-responsibility (CR) movement have taken one of two approaches to corporations and their activities. The reformist approach assumes the market and the corporation to be legitimate, though error-prone, institutions. Its goal is to make economic enterprise more beneficial for more persons. The other approach is "immediatist" in tone and hostile to both free enterprise and corporations. Its advocates call for an "alternative economic system" which almost always means centralized socialist planning. By the early seventies, this more revolutionary approach was dominant, and the movement was characterized by a confrontational approach to corporations. The recent entry of conservative religious groups into public policy debates and the increasing hostility of mainstream church members to radicalism in denominational social-action agencies have influenced the character of the CR movement. Today it is more inclined to work within the system. A notable example of the effectiveness of the reformist approach is the Sullivan Principles. The document concludes with a number of guidelines for church involvement in social issues. Appendixes include a list of organizations making up the CR movement's secondary network, a list of CR leaders, three denominational statements, a sample shareholders' resolution, exerpts from the Jessup Report and other reports, and a list of corporate responsiblity challenges. Notes, a bibliography, and an index of names conclude the document. (BZ)
- Published
- 1985
47. An interferon-gamma release assay for the diagnosis of the Mycobacterium bovis infection in white rhinoceros (Ceratotherium simum).
- Author
-
Chileshe, Josephine, Roos, Eduard O., Goosen, Wynand J., Buss, Peter, Hausler, Guy, Rossouw, Leana, Manemela, Tebogo, van Helden, Paul, Warren, Robin, Parsons, Sven DC, and Miller, Michele
- Subjects
- *
WHITE rhinoceros , *MYCOBACTERIUM bovis , *MYCOBACTERIAL diseases , *INTERFERON gamma release tests , *INTERFERONS , *TUBERCULOSIS in cattle - Abstract
• QuantiFERON-TB Gold platform useful for stimulating white rhinoceros blood. • QFT interferon gamma release assay identifies M. bovis infection in white rhinoceros. • Optimal cut-off value for QFT IGRA calculated as 21 pg/ml. Mycobacterium bovis (M. bovis), the cause of bovine tuberculosis, is endemic in Kruger National Park (KNP), South Africa. The risk of spread of M. bovis infection currently prevents translocation of white rhinoceros (Ceratotherium simum) from this population. Therefore, accurate assays are necessary for screening this threatened species. Interferon gamma (IFN-γ) release assays (IGRA) are commonly used for tuberculosis diagnosis in humans and other wildlife species. Hence, the aim of this study was to develop an IGRA for M. bovis detection in white rhinoceros. Heparinized whole blood was collected from immobilized white rhinoceros in KNP (n = 131) and incubated overnight in QuantiFERON®-TB Gold (QFT) blood collection tubes, after which the plasma was harvested following centrifugation. Tissue samples for mycobacterial culture were available from a subset of 21 rhinoceros. The concentration of IFN-γ in plasma samples was measured using the Mabtech equine IFN-γ ELISAPRO kit. An IGRA result was calculated as the difference in IFN-γ concentrations in the QFT Nil and TB antigen tubes. Using test results for the white rhinoceros with known infection status, a diagnostic cut-off value was calculated as 21 pg/ml. Additionally, cut-off values for IFN-γ concentrations for plasma from QFT Nil and QFT Mitogen tubes were calculated to increase confidence in IGRA result interpretation. The combination of the QFT stimulation platform and Mabtech equine IFN-γ ELISA is a promising diagnostic test to distinguish between of M. bovis -infected and -uninfected white rhinoceros. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
48. The effect of STI screening during pregnancy on vertical transmission of HIV and adverse pregnancy outcomes in South Africa: a modelling study.
- Author
-
Nyemba DC, Joseph-Davey DL, Delany-Moretlwe S, Myer L, and Johnson LF
- Subjects
- Humans, Female, Pregnancy, South Africa epidemiology, Adult, Mass Screening methods, Young Adult, Infant, Newborn, Prevalence, Infectious Disease Transmission, Vertical prevention & control, Infectious Disease Transmission, Vertical statistics & numerical data, HIV Infections transmission, HIV Infections epidemiology, HIV Infections diagnosis, HIV Infections drug therapy, Pregnancy Complications, Infectious epidemiology, Pregnancy Complications, Infectious drug therapy, Pregnancy Complications, Infectious diagnosis, Sexually Transmitted Diseases epidemiology, Sexually Transmitted Diseases diagnosis, Sexually Transmitted Diseases transmission, Pregnancy Outcome epidemiology, Models, Theoretical
- Abstract
Introduction: Sexually transmitted infections (STIs) in pregnancy are associated with an increased risk of vertical HIV transmission and adverse pregnancy and birth outcomes. In South Africa, syndromic management is the standard of care for STI management. We assessed the potential impact of point-of-care (POC) screening for curable STIs (Chlamydia trachomatis [CT], Trichomonas vaginalis [TV] and Neisseria gonorrhoeae [NG]) during pregnancy on vertical HIV transmission and adverse pregnancy and birth outcomes., Method: We developed a static mathematical model to estimate the impact of syndromic management compared to POC screening of STIs in pregnant women attending antenatal clinics in South Africa over one calendar year (2022). Our model assumptions regarding the effect of CT, NG and TV on adverse pregnancy/birth outcomes and vertical HIV transmission were informed by two separate meta-analyses that we conducted. Local studies informed estimates of STI prevalence, POC screening uptake and treatment, and sensitivity of syndromic management., Results: In the absence of POC screening for curable STIs, 25.5% of pregnant women without HIV and 34.6% of pregnant women living with HIV were estimated to have undiagnosed and untreated STIs. In the POC scenario, 92% (95% CI: 85-100%) of STIs were diagnosed and treated during pregnancy, reducing antenatal maternal HIV incidence by 10.0% (95% CI: 1.0-20.1%). Overall, vertical HIV transmission was anticipated to reduce by 8.6% (5.2-13.8%), with reductions of 20.9% (15.2-27.0%) at birth and 2.5% (-0.9% to 9.0%) postnatally, in the POC screening scenario compared to current syndromic management. POC screening of curable STIs is further estimated to reduce the incidence of stillbirth by 10.1% (1.3-18.7%), preterm delivery by 6.3% (3.4-9.7%), infants born small for gestational age by 2.7% (0.7-4.9%) and low birth weight by 9.1% (0.9-18%)., Conclusions: POC STI screening and treatment may modestly reduce maternal HIV incidence, vertical HIV transmission, and the risk of adverse pregnancy and birth outcomes, and would substantially reduce the burden of curable STIs in pregnancy. The study provides evidence to move beyond the syndromic management of STIs in South Africa, particularly in antenatal care., (© 2025 The Author(s). Journal of the International AIDS Society published by John Wiley & Sons Ltd on behalf of International AIDS Society.)
- Published
- 2025
- Full Text
- View/download PDF
49. The impact of tobacco smoking and smoking cessation on lung cancer and stroke incidence among people with HIV on antiretroviral therapy in South Africa: a simulation modeling study.
- Author
-
D'Couto H, Thielking AM, Sewpaul R, Levy DE, Rigotti NA, Chrysanthopoulou SA, Siedner MJ, Freedberg KA, Wood R, Hyle EP, and Reddy KP
- Subjects
- Humans, Female, Male, South Africa epidemiology, Incidence, Middle Aged, Adult, Tobacco Smoking epidemiology, Computer Simulation, HIV Infections epidemiology, HIV Infections drug therapy, Smoking Cessation, Lung Neoplasms epidemiology, Stroke epidemiology
- Abstract
Introduction: With declining HIV-related mortality, over 20% of people with HIV (PWH) in South Africa are now over age 50 years, and tobacco-related non-communicable disease burden is increasing. We quantified the impact of smoking and smoking cessation on lung cancer and stroke incidence among PWH in South Africa., Methods: Using a microsimulation model, we simulated 18 cohorts of initially virologically suppressed PWH over their lifetime, categorised by sex, initial age (35 years/45 years/55 years) and smoking status (current/former/never). Smoking status remains constant throughout the simulation; individuals with former smoking status quit at model start. PWH can disengage from HIV care and experience virological rebound. We modelled the relative risk of lung cancer for females (males) with current versus never smoking status as 16.69 (15.83), and for females (males) with former versus never smoking status as 1.99-8.80 (1.90-6.18), depending on age at cessation. Corresponding modelled relative risks of stroke were 1.79 (1.54) for current versus never smoking, and 1.00-1.29 (1.00-1.12) for former versus never smoking. We varied HIV-related and smoking-related parameters in sensitivity analyses., Results: Modelled female (male) PWH who stop smoking at age 45 years experience 61.3% (70.9%) and 35.6% (18.6%) lower cumulative lung cancer and stroke incidence over 25 years compared with people who continue smoking. The proportion alive and lung cancer-free or alive and stroke-free over 25 years would increase by 10.4 (9.5) or 10.5 (8.5) percentage points. In sensitivity analysis, smoking and smoking cessation have a greater impact on lung cancer and stroke cumulative incidence if competing HIV-related mortality risks are lower or if PWH experience higher lung cancer and stroke risk compared with people without HIV apart from smoking., Conclusion: Smoking cessation could substantially reduce lung cancer and stroke risk among PWH in South Africa. To reduce the rising non-communicable disease burden among PWH, smoking cessation should become part of routine care of PWH., Competing Interests: Competing interests: KR reports royalties from UpToDate, for authorship of an article about electronic cigarettes. NAR reports a grant to her institution and consulting fees from Achieve Life Sciences, membership in a data and safety monitoring board for Achieve Life Sciences, and royalties from UpToDate, for authorship of articles about tobacco cessation., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2024
- Full Text
- View/download PDF
50. Airborne microplastic monitoring: Developing a simplified outdoor sampling approach using pollen monitoring equipment.
- Author
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Chapman E, Liddle CR, Williams B, Hilmer E, Quick LJ, Garcia AG, Suárez DC, White D, Bunting MJ, Walker P, Cabaneros SMS, Kinnersley R, Hansen MF, Atherall CA, and Rotchell JM
- Subjects
- South Africa, United Kingdom, Environmental Monitoring methods, Environmental Monitoring instrumentation, Pollen chemistry, Microplastics analysis, Air Pollutants analysis
- Abstract
A novel, yet simple, airborne microplastic (MP) sampling approach using global pollen monitoring equipment was applied to identify, characterise and quantify outdoor airborne MPs for the first time. Modification of Burkard spore trap tape adhesive provided particle capture and facilitated downstream spectroscopy analysis. 36 polymer types were identified from a total of 21 days sampling using Burkard spore traps at two locations (United Kingdom and South Africa). MPs were detected in 95 % of daily samples. Mean MP particle levels were 2.0 ± 0.9 MP m
-3 (11 polymer types) in Hull (U.K.), during March, 2.9 ± 2.0 MP m-3 (16 types) in Hull in July, and 11.0 ± 5.7 MP m-3 (29 types) in Gqeberha, (S.A.) in August 2023. The most abundant polymer type was nylon (Gqeberha). The approach was compared with two passive sampling methods whereby 27 polymer types were identified and of these, 6 types were above the limit of quantification (LOQ), with poly(methacrolein:styrene) (PMA/PS) the most abundant. Irregularly shaped MPs < 100 µm in length were predominant from all sampling approaches. For the first time, airborne MPs were chemically characterised and quantified using volumetric pollen sampling equipment, representing a viable approach for future airborne MP monitoring., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)- Published
- 2024
- Full Text
- View/download PDF
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