The role of the educator
- National Union of MetalWorkers of South Africa
- Authors: National Union of MetalWorkers of South Africa
- Date: 19--?
- Subjects: Capitalism and education , Black people -- Education -- South Africa , Teachers, Black -- Psychology
- Language: English
- Type: text , pamphlet
- Identifier: http://hdl.handle.net/10962/110914 , vital:33350
- Description: In South Africa, like all other capitalist societies, workers are forced to work for wages to buy the things they need to survive. The land, factories, mines, etc are privately owned by the capitalists. Because the capitalists own the land, factories and mines they control the wealth that is produced. With this wealth, as well as with the ownership of several newspapers and investment in radio and television stations, the capitalists can try and influence how people think. The capitalists also use the political rights and the wealth they have to influence how the government behaves. In South Africa, black workers have no political rights, because of apartheid. So they cannot influence the government in the same way as the capitalists. Workers standing on their own are also weak against their employers because the employers do not need any one particular worker. But the employers cannot do without all their workers. Machines without workers are useless. So if all workers can organise themselves to act together, to act collectively as it is called, then the balance of power changes. Capitalism needs the labour of workers to survive. So organised workers can be the most powerful weapon against capitalism. But the capitalists in South Africa are very powerful. They have a good friend in the apartheid state. Workers need to be well organised to challenge the power of the capitalists. But to build this strength, we need unity. We also need discipline and clear direction. The first step in making a union strong is for the union to have a very large membership. But the members cannot be sleeping members. They must understand the broader aims and objectives of the union and how the union fits into the wider struggle in South Africa. They must also have the skills and knowledge to be able to participate actively in all the activities of the union. Democratic practices increase the strength of workers' organisations and make them more effective. Democratic organisations are also necessary for building democratic societies because they make it possible for the masses of the people to participate in decisions about their lives.
- Full Text:
- Date Issued: 19--?
- Authors: National Union of MetalWorkers of South Africa
- Date: 19--?
- Subjects: Capitalism and education , Black people -- Education -- South Africa , Teachers, Black -- Psychology
- Language: English
- Type: text , pamphlet
- Identifier: http://hdl.handle.net/10962/110914 , vital:33350
- Description: In South Africa, like all other capitalist societies, workers are forced to work for wages to buy the things they need to survive. The land, factories, mines, etc are privately owned by the capitalists. Because the capitalists own the land, factories and mines they control the wealth that is produced. With this wealth, as well as with the ownership of several newspapers and investment in radio and television stations, the capitalists can try and influence how people think. The capitalists also use the political rights and the wealth they have to influence how the government behaves. In South Africa, black workers have no political rights, because of apartheid. So they cannot influence the government in the same way as the capitalists. Workers standing on their own are also weak against their employers because the employers do not need any one particular worker. But the employers cannot do without all their workers. Machines without workers are useless. So if all workers can organise themselves to act together, to act collectively as it is called, then the balance of power changes. Capitalism needs the labour of workers to survive. So organised workers can be the most powerful weapon against capitalism. But the capitalists in South Africa are very powerful. They have a good friend in the apartheid state. Workers need to be well organised to challenge the power of the capitalists. But to build this strength, we need unity. We also need discipline and clear direction. The first step in making a union strong is for the union to have a very large membership. But the members cannot be sleeping members. They must understand the broader aims and objectives of the union and how the union fits into the wider struggle in South Africa. They must also have the skills and knowledge to be able to participate actively in all the activities of the union. Democratic practices increase the strength of workers' organisations and make them more effective. Democratic organisations are also necessary for building democratic societies because they make it possible for the masses of the people to participate in decisions about their lives.
- Full Text:
- Date Issued: 19--?
Some human and structural constraints on rural development: the Amatola Basin, a Ciskeian case study
- Bekker, S B, de Wet, Christopher J
- Authors: Bekker, S B , de Wet, Christopher J
- Date: 1982
- Subjects: Amatola River Watershed (South Africa) Agriculture -- South Africa -- Ciskei Land tenure -- South Africa -- Ciskei Middledrift (South Africa)
- Language: English
- Type: Book , Text
- Identifier: http://hdl.handle.net/10962/2227 , vital:20267 , ISBN 0868100900
- Description: A rural development project is currently under way in the Amatola Basin, Ciskei. This paper introduces the project and outlines the socio-economic and agricultural conditions current in the area. An overview of present project activities is included. It then attempts to identify a number of potential and actual human and structural constraints operating on the implementation of the project. Such constraints arise out of the existing agricultural system in the project area, as well as out of the state bureaucratic structures operating in Ciskei, and the agency implementing the project itself. One aim is to identify the units involved in dryland cultivation. This is done by tracing ties of cooperation between cultivating households in one Amatola village. It will be shown, in this village at least, that the household does not form the main unit of cultivation. A second aim of this paper is to show that checks on rural development in general should not be sought solely within the area under consideration, but derive to an important degree from outside sources. , Digitised by Rhodes University Library on behalf of the Institute of Social and Economic Research (ISER)
- Full Text:
- Date Issued: 1982
Some human and structural constraints on rural development: the Amatola Basin, a Ciskeian case study
- Authors: Bekker, S B , de Wet, Christopher J
- Date: 1982
- Subjects: Amatola River Watershed (South Africa) Agriculture -- South Africa -- Ciskei Land tenure -- South Africa -- Ciskei Middledrift (South Africa)
- Language: English
- Type: Book , Text
- Identifier: http://hdl.handle.net/10962/2227 , vital:20267 , ISBN 0868100900
- Description: A rural development project is currently under way in the Amatola Basin, Ciskei. This paper introduces the project and outlines the socio-economic and agricultural conditions current in the area. An overview of present project activities is included. It then attempts to identify a number of potential and actual human and structural constraints operating on the implementation of the project. Such constraints arise out of the existing agricultural system in the project area, as well as out of the state bureaucratic structures operating in Ciskei, and the agency implementing the project itself. One aim is to identify the units involved in dryland cultivation. This is done by tracing ties of cooperation between cultivating households in one Amatola village. It will be shown, in this village at least, that the household does not form the main unit of cultivation. A second aim of this paper is to show that checks on rural development in general should not be sought solely within the area under consideration, but derive to an important degree from outside sources. , Digitised by Rhodes University Library on behalf of the Institute of Social and Economic Research (ISER)
- Full Text:
- Date Issued: 1982
Transport and General Workers Union: congress report financial progress report for period July 1988 to November 1989
- Transport and General Workers' Union (South Africa)
- Authors: Transport and General Workers' Union (South Africa)
- Date: 1989-07
- Subjects: Uncatalogued
- Language: eng
- Type: text , pamphlet
- Identifier: http://hdl.handle.net/10962/103428 , vital:32245
- Description: In reviewing the developments in T&G finances over the past eighteen months, we can safely say that T&G finances have certainly stabilized over the period. However, in case we get too excited at this news, a note of caution. While our income from subscriptions has steadily improved, due mainly to the Congress ’88 increase in rate (from R3 to R4); our expenditure has in relation also increased to the point that if we continue with our current expenditure pace of October ’89 and November 89, we will soon return to our previous problem of constant threat of bank overdraft! We are a long way off self-sufficiency and still rely heavily on our overseas funders for assistance in the areas of legal fees and our education programme. This report will focus on both the positive developments in T&G finances over these past eighteen months, as well as the problem areas which we need to seriously tackle from here!
- Full Text:
- Date Issued: 1989-07
- Authors: Transport and General Workers' Union (South Africa)
- Date: 1989-07
- Subjects: Uncatalogued
- Language: eng
- Type: text , pamphlet
- Identifier: http://hdl.handle.net/10962/103428 , vital:32245
- Description: In reviewing the developments in T&G finances over the past eighteen months, we can safely say that T&G finances have certainly stabilized over the period. However, in case we get too excited at this news, a note of caution. While our income from subscriptions has steadily improved, due mainly to the Congress ’88 increase in rate (from R3 to R4); our expenditure has in relation also increased to the point that if we continue with our current expenditure pace of October ’89 and November 89, we will soon return to our previous problem of constant threat of bank overdraft! We are a long way off self-sufficiency and still rely heavily on our overseas funders for assistance in the areas of legal fees and our education programme. This report will focus on both the positive developments in T&G finances over these past eighteen months, as well as the problem areas which we need to seriously tackle from here!
- Full Text:
- Date Issued: 1989-07
The remains of rock glaciers in Bottelnek, East Cape Drakensberg, South Africa
- Lewis, Colin A, Hanvey, Patricia M
- Authors: Lewis, Colin A , Hanvey, Patricia M
- Date: 1993
- Language: English
- Type: Article
- Identifier: vital:6698 , http://hdl.handle.net/10962/d1006734
- Description: Certain debris accumulations in Bottelnek are ascribed a rock glacier origin on the basis of morphological and sedimentological evidence. Radiocarbon dating indicates that rock glaciers were active at or subsequent to 21 000 BP and that cold, stadial conditions, existed on the region after 27 000 BP and before 13 000 BP, during the Bottelnek Stadial. At least sporadic permafrost existed in Bottelnek when the rock glaciers were active.
- Full Text: false
- Date Issued: 1993
- Authors: Lewis, Colin A , Hanvey, Patricia M
- Date: 1993
- Language: English
- Type: Article
- Identifier: vital:6698 , http://hdl.handle.net/10962/d1006734
- Description: Certain debris accumulations in Bottelnek are ascribed a rock glacier origin on the basis of morphological and sedimentological evidence. Radiocarbon dating indicates that rock glaciers were active at or subsequent to 21 000 BP and that cold, stadial conditions, existed on the region after 27 000 BP and before 13 000 BP, during the Bottelnek Stadial. At least sporadic permafrost existed in Bottelnek when the rock glaciers were active.
- Full Text: false
- Date Issued: 1993
Think: A Review of International Struggles
- Date: 1998-01
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/33823 , vital:33086 , Bulk File 7
- Description: 'Think' is a journal related to the Unity Movement. The author is Hosea Jaffe a long-standing NEUM theoretician who went into exile in the 1960s but remained an active member.
- Full Text: false
- Date Issued: 1998-01
- Date: 1998-01
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/10948/33823 , vital:33086 , Bulk File 7
- Description: 'Think' is a journal related to the Unity Movement. The author is Hosea Jaffe a long-standing NEUM theoretician who went into exile in the 1960s but remained an active member.
- Full Text: false
- Date Issued: 1998-01
Types of case study work : a conceptual framework for case-based research
- Authors: Edwards, D J A
- Date: 1998
- Language: English
- Type: Article
- Identifier: vital:6240 , http://hdl.handle.net/10962/d1007852
- Description: This paper describes a conceptual framework for understanding the phases of casebased research. Case-based strategies in research are widely used in case study methodology as well as in a number of qualitative methodologies including grounded theory development, phenomenological research method and psychotherapy process research. The epistemological principles upon which casebased research is based are fundamentally different those which inform groupbased research using quantitative multivariate statistics. The case-based research process is divided into three general phases: descriptive, theoretical-heuristic, and theory-testing. Each of these phases is subdivided into two categories. The aims and epistemological principles related to each phase are discussed and illustrated with examples from contemporary research. The principles for establishing validity in case-base research are also reviewed and, in order to assist research students and supervisors, some common pitfalls are noted. The paper shows that rigorous work with single cases or series of cases using case-based principles and methodology is indeed, as Bromley (1986) claimed, "the bedrock of scientific investigation".
- Full Text:
- Date Issued: 1998
- Authors: Edwards, D J A
- Date: 1998
- Language: English
- Type: Article
- Identifier: vital:6240 , http://hdl.handle.net/10962/d1007852
- Description: This paper describes a conceptual framework for understanding the phases of casebased research. Case-based strategies in research are widely used in case study methodology as well as in a number of qualitative methodologies including grounded theory development, phenomenological research method and psychotherapy process research. The epistemological principles upon which casebased research is based are fundamentally different those which inform groupbased research using quantitative multivariate statistics. The case-based research process is divided into three general phases: descriptive, theoretical-heuristic, and theory-testing. Each of these phases is subdivided into two categories. The aims and epistemological principles related to each phase are discussed and illustrated with examples from contemporary research. The principles for establishing validity in case-base research are also reviewed and, in order to assist research students and supervisors, some common pitfalls are noted. The paper shows that rigorous work with single cases or series of cases using case-based principles and methodology is indeed, as Bromley (1986) claimed, "the bedrock of scientific investigation".
- Full Text:
- Date Issued: 1998
New Unity Movement Presidential Address
- Date: 1998-12
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/32476 , vital:32109 , Bulk File 7
- Description: Presidential Addresses were delivered at each Annual conference of the New Unity Movement. This collection, though incomplete, has 18 items ranging from 1989 to 2013.
- Full Text: false
- Date Issued: 1998-12
- Date: 1998-12
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/32476 , vital:32109 , Bulk File 7
- Description: Presidential Addresses were delivered at each Annual conference of the New Unity Movement. This collection, though incomplete, has 18 items ranging from 1989 to 2013.
- Full Text: false
- Date Issued: 1998-12
Economic review 2001
- DITSELA
- Authors: DITSELA
- Date: 2001
- Subjects: Development Institute for Training,Support and Education for Labour (DITSELA)
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/178602 , vital:42958
- Description: This volume of Bargaining Indicators for 2002 comes in the context of the September 11 attacks on the World Trade Center in New York, the United States’ war on Afghanistan, the collapse of the economy of Argentina and with it the biggest sovereign bankruptcy in history. All these historic events are unfolding within the first synchronised global recession since the 1970s, and have in turn deepened this recession. Within South Africa, this edition of Bargaining Indicators comes in the context of the first anti-government national strike by organised labour since the 1994 elections, and a deepening of the economic slowdown that we noted in the last edition of Bargaining Indicators. In this review of economic developments during 2001 we shine the spotlight on the global recession and its dynamics, and we look in particular at the slide of the world’s largest economy - that of the United States - into its first serious economic crisis since the end of the cold war, and we take a look at the significance of the attacks of September 11 and their aftermath on the dynamics of the global recession. We conclude our discussion of the global recession by discussing the responses of the Bush government and its allies, and at the meaning of these responses for neoliberal economic orthodoxy. We continue our analysis by looking at developments within the South African economy. In particular, we look at the implications of the global recession on the South African economy, and at how the currency crisis that has unfolded since the last quarter of 2001 forms an important moment in the dynamics of the unfolding global recession. Within this context we look at the main economic indicators (GDP; GDE; fixed capital formation, operating surpluses, wages, employment, savings and so on). Lastly, we look at the year ahead, and in particular at the implications of the global and domestic economic developments for the 2002 bargaining season.
- Full Text:
- Date Issued: 2001
- Authors: DITSELA
- Date: 2001
- Subjects: Development Institute for Training,Support and Education for Labour (DITSELA)
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/178602 , vital:42958
- Description: This volume of Bargaining Indicators for 2002 comes in the context of the September 11 attacks on the World Trade Center in New York, the United States’ war on Afghanistan, the collapse of the economy of Argentina and with it the biggest sovereign bankruptcy in history. All these historic events are unfolding within the first synchronised global recession since the 1970s, and have in turn deepened this recession. Within South Africa, this edition of Bargaining Indicators comes in the context of the first anti-government national strike by organised labour since the 1994 elections, and a deepening of the economic slowdown that we noted in the last edition of Bargaining Indicators. In this review of economic developments during 2001 we shine the spotlight on the global recession and its dynamics, and we look in particular at the slide of the world’s largest economy - that of the United States - into its first serious economic crisis since the end of the cold war, and we take a look at the significance of the attacks of September 11 and their aftermath on the dynamics of the global recession. We conclude our discussion of the global recession by discussing the responses of the Bush government and its allies, and at the meaning of these responses for neoliberal economic orthodoxy. We continue our analysis by looking at developments within the South African economy. In particular, we look at the implications of the global recession on the South African economy, and at how the currency crisis that has unfolded since the last quarter of 2001 forms an important moment in the dynamics of the unfolding global recession. Within this context we look at the main economic indicators (GDP; GDE; fixed capital formation, operating surpluses, wages, employment, savings and so on). Lastly, we look at the year ahead, and in particular at the implications of the global and domestic economic developments for the 2002 bargaining season.
- Full Text:
- Date Issued: 2001
NUM Education strategic plan
- NUM
- Authors: NUM
- Date: 2001
- Subjects: Uncatalogued
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/106445 , vital:32652
- Description: First we need to ask the obvious question, what is the purpose of a trade union education strategic plan? The answer is as follows,To enable the union to locate its educational concerns and plan its responses with due regard to available resources, and capacity. To ensure that there is a reference point for a thorough on-going assessment of progress. To help articulate a vision for the unions education which inspires and motivates all those concerned. This is critical to the long-term success of our union. Assessing and adopting strategic options requires a vision to help us locate and then analyse both external and internal conditions. It helps us to formulate manageable and realistic strategies to achieve agreed objectives. It helps us to implement our plans with a clear appreciation of our true capacity and to measure outcomes accurately
- Full Text:
- Date Issued: 2001
- Authors: NUM
- Date: 2001
- Subjects: Uncatalogued
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/106445 , vital:32652
- Description: First we need to ask the obvious question, what is the purpose of a trade union education strategic plan? The answer is as follows,To enable the union to locate its educational concerns and plan its responses with due regard to available resources, and capacity. To ensure that there is a reference point for a thorough on-going assessment of progress. To help articulate a vision for the unions education which inspires and motivates all those concerned. This is critical to the long-term success of our union. Assessing and adopting strategic options requires a vision to help us locate and then analyse both external and internal conditions. It helps us to formulate manageable and realistic strategies to achieve agreed objectives. It helps us to implement our plans with a clear appreciation of our true capacity and to measure outcomes accurately
- Full Text:
- Date Issued: 2001
NUM Education strategic plan
- NUM
- Authors: NUM
- Date: 2002-2005
- Subjects: NUM
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/113988 , vital:33867
- Description: The Education Department believes it is important that when assembling a strategic education plan for the next three years, a thorough discussion needs to take place within the Union as a whole about the context that we find ourselves in, and the challenges, which emerge, for our members. What follows are the observations of the Education Department informed by the Unions Ten Year plan and other policy engagements. It is not an exhaustive survey that is offered here, but what are considered key points.
- Full Text:
- Date Issued: 2002-2005
- Authors: NUM
- Date: 2002-2005
- Subjects: NUM
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/113988 , vital:33867
- Description: The Education Department believes it is important that when assembling a strategic education plan for the next three years, a thorough discussion needs to take place within the Union as a whole about the context that we find ourselves in, and the challenges, which emerge, for our members. What follows are the observations of the Education Department informed by the Unions Ten Year plan and other policy engagements. It is not an exhaustive survey that is offered here, but what are considered key points.
- Full Text:
- Date Issued: 2002-2005
Towards a norm in South African Englishes: the case for Xhosa English
- Authors: De Klerk, Vivian A
- Date: 2003
- Language: English
- Type: Article
- Identifier: vital:6131 , http://hdl.handle.net/10962/d1011583
- Description: Black South African English (BSAE) is generally regarded today as the variety of English commonly used by mother-tongue speakers of South Africa's indigenous African languages in areas where English is not the language of the majority. Its roots lie in the history of the teaching of English to the black people of this country, where the role models who teach English are second language learners themselves. To date, BSAE has mainly been studied within an applied linguistic framework with emphasis on its character as a second language which is deviant from standard English. An alternative view is to see it as a variety in its own right, a new or world English (Coetsee Van Rooy and Verhoef, 2000; van der Walt and van Rooy, 2002). As a consequence, a new look at norms is becoming increasingly necessary, so that decisions about learners' language competence can be made in terms of this variety. This paper reports on preliminary analyses of a recently collected corpus of Xhosa English (XE) (a sub-category of BSAE) which consists of naturalistic spoken data, and comprises some 540,000 words of Xhosa English. This large database enables empirical analysis of actual patterns of use in language, making it possible to test earlier speculations which have been based on intuition, and to explore the possibility of systematic differences in the patterns of structure and use in this particular variety. The paper focuses on 20 separate linguistic characteristics, most of which have been previously identified in the literature as being features of BSAE, and analyses each of them in turn, in order to ascertain their usage patterns and frequency of occurrence in the corpus.
- Full Text:
- Date Issued: 2003
- Authors: De Klerk, Vivian A
- Date: 2003
- Language: English
- Type: Article
- Identifier: vital:6131 , http://hdl.handle.net/10962/d1011583
- Description: Black South African English (BSAE) is generally regarded today as the variety of English commonly used by mother-tongue speakers of South Africa's indigenous African languages in areas where English is not the language of the majority. Its roots lie in the history of the teaching of English to the black people of this country, where the role models who teach English are second language learners themselves. To date, BSAE has mainly been studied within an applied linguistic framework with emphasis on its character as a second language which is deviant from standard English. An alternative view is to see it as a variety in its own right, a new or world English (Coetsee Van Rooy and Verhoef, 2000; van der Walt and van Rooy, 2002). As a consequence, a new look at norms is becoming increasingly necessary, so that decisions about learners' language competence can be made in terms of this variety. This paper reports on preliminary analyses of a recently collected corpus of Xhosa English (XE) (a sub-category of BSAE) which consists of naturalistic spoken data, and comprises some 540,000 words of Xhosa English. This large database enables empirical analysis of actual patterns of use in language, making it possible to test earlier speculations which have been based on intuition, and to explore the possibility of systematic differences in the patterns of structure and use in this particular variety. The paper focuses on 20 separate linguistic characteristics, most of which have been previously identified in the literature as being features of BSAE, and analyses each of them in turn, in order to ascertain their usage patterns and frequency of occurrence in the corpus.
- Full Text:
- Date Issued: 2003
New Unity Movement Presidential Address
- Date: 2005-04
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/32590 , vital:32138 , Bulk File 7
- Description: Presidential Addresses were delivered at each Annual conference of the New Unity Movement. This collection, though incomplete, has 18 items ranging from 1989 to 2013.
- Full Text: false
- Date Issued: 2005-04
- Date: 2005-04
- Subjects: Government, Resistance to -- South Africa , South Africa -- History -- 20th century , South Africa -- Politics and government
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10948/32590 , vital:32138 , Bulk File 7
- Description: Presidential Addresses were delivered at each Annual conference of the New Unity Movement. This collection, though incomplete, has 18 items ranging from 1989 to 2013.
- Full Text: false
- Date Issued: 2005-04
Impact of climate change and development scenarios on flow patterns in the Okavango River
- Andersson, L, Wilk, J, Todd, M C, Hughes, Denis A, Earle, A, Kniveton, D, Layberry, R, Savenije, H H G
- Authors: Andersson, L , Wilk, J , Todd, M C , Hughes, Denis A , Earle, A , Kniveton, D , Layberry, R , Savenije, H H G
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:7086 , http://hdl.handle.net/10962/d1012346
- Description: This paper lays the foundation for the use of scenario modelling as a tool for integrated water resource management in the Okavango River basin. The Pitman hydrological model is used to assess the impact of various development and climate change scenarios on downstream river flow. The simulated impact on modelled river discharge of increased water use for domestic use, livestock, and informal irrigation (proportional to expected population increase) is very limited. Implementation of all likely potential formal irrigation schemes mentioned in available reports is expected to decrease the annual flow by 2% and the minimum monthly flow by 5%. The maximum possible impact of irrigation on annual average flow is estimated as 8%, with a reduction of minimum monthly flow by 17%. Deforestation of all areas within a 1 km buffer around the rivers is estimated to increase the flow by 6%. However, construction of all potential hydropower reservoirs in the basin may change the monthly mean flow distribution dramatically, although under the assumed operational rules, the impact of the dams is only substantial during wet years. The simulated impacts of climate change are considerable larger that those of the development scenarios (with exception of the high development scenario of hydropower schemes) although the results are sensitive to the choice of GCM and the IPCC SRES greenhouse gas (GHG) emission scenarios. The annual mean water flow predictions for the period 2020–2050 averaged over scenarios from all the four GCMs used in this study are close to the present situation for both the A2 and B2 GHG scenarios. For the 2050–2080 and 2070–2099 periods the all-GCM mean shows a flow decrease of 20% (14%) and 26% (17%), respectively, for the A2 (B2) GHG scenarios. However, the uncertainty in the magnitude of simulated future changes remains high. The simulated effect of climate change on minimum monthly flow is proportionally higher than the impact on the annual mean flow.
- Full Text:
- Date Issued: 2006
- Authors: Andersson, L , Wilk, J , Todd, M C , Hughes, Denis A , Earle, A , Kniveton, D , Layberry, R , Savenije, H H G
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:7086 , http://hdl.handle.net/10962/d1012346
- Description: This paper lays the foundation for the use of scenario modelling as a tool for integrated water resource management in the Okavango River basin. The Pitman hydrological model is used to assess the impact of various development and climate change scenarios on downstream river flow. The simulated impact on modelled river discharge of increased water use for domestic use, livestock, and informal irrigation (proportional to expected population increase) is very limited. Implementation of all likely potential formal irrigation schemes mentioned in available reports is expected to decrease the annual flow by 2% and the minimum monthly flow by 5%. The maximum possible impact of irrigation on annual average flow is estimated as 8%, with a reduction of minimum monthly flow by 17%. Deforestation of all areas within a 1 km buffer around the rivers is estimated to increase the flow by 6%. However, construction of all potential hydropower reservoirs in the basin may change the monthly mean flow distribution dramatically, although under the assumed operational rules, the impact of the dams is only substantial during wet years. The simulated impacts of climate change are considerable larger that those of the development scenarios (with exception of the high development scenario of hydropower schemes) although the results are sensitive to the choice of GCM and the IPCC SRES greenhouse gas (GHG) emission scenarios. The annual mean water flow predictions for the period 2020–2050 averaged over scenarios from all the four GCMs used in this study are close to the present situation for both the A2 and B2 GHG scenarios. For the 2050–2080 and 2070–2099 periods the all-GCM mean shows a flow decrease of 20% (14%) and 26% (17%), respectively, for the A2 (B2) GHG scenarios. However, the uncertainty in the magnitude of simulated future changes remains high. The simulated effect of climate change on minimum monthly flow is proportionally higher than the impact on the annual mean flow.
- Full Text:
- Date Issued: 2006
Language and learning science in South Africa
- Authors: Probyn, Margie J
- Date: 2006
- Language: English
- Type: text , Article
- Identifier: vital:7023 , http://hdl.handle.net/10962/d1007204 , http://dx.doi.org/10.2167/le554.0
- Description: South Africa is a multilingual country with 11 official languages. However, English dominates as the language of access and power and although the Language-in- Education Policy (1997) recommends school language policies that will promote additive bilingualism and the use of learners' home languages as languages of learning and teaching, there has been little implementation of these recommendations by schools. This is despite the fact that the majority of learners do not have the necessary English language proficiency to successfully engage with the curriculum and that teachers frequently are obliged to resort to using the learners' home language to mediate understanding. This research investigates the classroom language practices of six Grade 8 science teachers, teaching science through the medium of English where they and their learners share a common home language, Xhosa. Teachers' lessons were videotaped, transcribed and analysed for the opportunities they offered learners for language development and conceptual challenge. The purpose of the research is to better understand the teachers' perceptions and problems and to be able to draw on examples of good practice, to inform teacher training and to develop a coherent bilingual approach for teaching science through the medium of English as an additional language.
- Full Text:
- Date Issued: 2006
- Authors: Probyn, Margie J
- Date: 2006
- Language: English
- Type: text , Article
- Identifier: vital:7023 , http://hdl.handle.net/10962/d1007204 , http://dx.doi.org/10.2167/le554.0
- Description: South Africa is a multilingual country with 11 official languages. However, English dominates as the language of access and power and although the Language-in- Education Policy (1997) recommends school language policies that will promote additive bilingualism and the use of learners' home languages as languages of learning and teaching, there has been little implementation of these recommendations by schools. This is despite the fact that the majority of learners do not have the necessary English language proficiency to successfully engage with the curriculum and that teachers frequently are obliged to resort to using the learners' home language to mediate understanding. This research investigates the classroom language practices of six Grade 8 science teachers, teaching science through the medium of English where they and their learners share a common home language, Xhosa. Teachers' lessons were videotaped, transcribed and analysed for the opportunities they offered learners for language development and conceptual challenge. The purpose of the research is to better understand the teachers' perceptions and problems and to be able to draw on examples of good practice, to inform teacher training and to develop a coherent bilingual approach for teaching science through the medium of English as an additional language.
- Full Text:
- Date Issued: 2006
Reporting non-stop violence in South Africa: the necessity for adopting a different kind of journalism
- Garman, Anthea, Mbaine, Adolf
- Authors: Garman, Anthea , Mbaine, Adolf
- Date: 2006
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/159702 , vital:40334 , ISBN 978-9970025367
- Description: The role of the media and media reportage is crucial to any conflict situation. In Uganda, the Department of Mass Communication at Makerere University has endeavoured to support constructive reporting of the various conflicts that have beset the country and the region in the past decades. As part of this effort, it has organised lectures and commissioned research by media professionals and academic observers, whose work is brought together in this collection of essays.
- Full Text:
- Date Issued: 2006
- Authors: Garman, Anthea , Mbaine, Adolf
- Date: 2006
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/159702 , vital:40334 , ISBN 978-9970025367
- Description: The role of the media and media reportage is crucial to any conflict situation. In Uganda, the Department of Mass Communication at Makerere University has endeavoured to support constructive reporting of the various conflicts that have beset the country and the region in the past decades. As part of this effort, it has organised lectures and commissioned research by media professionals and academic observers, whose work is brought together in this collection of essays.
- Full Text:
- Date Issued: 2006
Sperm morphology in five species of cicadettine cicadas (Hemiptera: Cicadomorpha: Cicadidae)
- Chawanji, A S, Hodgson, Alan N, Villet, Martin H
- Authors: Chawanji, A S , Hodgson, Alan N , Villet, Martin H
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6930 , http://hdl.handle.net/10962/d1011948
- Description: Mature spermatozoa from five species of cicadas of the subfamily Cicadettinae (Quintilia wealei, Melampsalta leucoptera, Stagira simplex, Xosopsaltria thunbergi and Monomatapa matoposa) were examined by light and electron microscopy. In each species sperm are elongate, aggregated into organized bundles with their heads embedded in a homogenous matrix to form spermatodesmata, and exhibit polymegaly. The head of the sperm consist of an anteriorly positioned conical acrosome that has a tubular substructure and a deep, posterior invagination that forms the subacrosomal space (eccentrically positioned anteriorly). The acrosome is flattened anteriorly; posteriorly it extends along either side of the nucleus as two tubular processes that gradually decrease in diameter. The filiform nucleus tapers anteriorly and intrudes into the subscrosomal space. Posteriorly the nucleus has a lateral invagination that houses material of the so-called centriolar adjunct. Posterior to the centriolar adjuct and the nucleus are two crystalline mitochondrial derivatives and a centriole, respectively, the latter giving rise to the axoneme, which has a 9 + 9 + 2 arrangement of microtubules. In these respects the sperm are similar to those of platypleurine cicadas. However, some features seem unique to cicadettines, including the structural organization of an enlarged centriolar adjunct and the dimensions of the tails. The enlarged centriolar adjunct has a lamella-like substructure and can be considered a synapomorphic character in the Cicadettinae. It is, therefore, potentially useful in the separation of this subfamily from the Cicadinae. In addition, the great length of the sperm nucleus of long-headed sperm in M. matoposa could be a synapomorphy of this genus and related taphurine and cicadettine species.
- Full Text:
- Date Issued: 2006
- Authors: Chawanji, A S , Hodgson, Alan N , Villet, Martin H
- Date: 2006
- Language: English
- Type: Article
- Identifier: vital:6930 , http://hdl.handle.net/10962/d1011948
- Description: Mature spermatozoa from five species of cicadas of the subfamily Cicadettinae (Quintilia wealei, Melampsalta leucoptera, Stagira simplex, Xosopsaltria thunbergi and Monomatapa matoposa) were examined by light and electron microscopy. In each species sperm are elongate, aggregated into organized bundles with their heads embedded in a homogenous matrix to form spermatodesmata, and exhibit polymegaly. The head of the sperm consist of an anteriorly positioned conical acrosome that has a tubular substructure and a deep, posterior invagination that forms the subacrosomal space (eccentrically positioned anteriorly). The acrosome is flattened anteriorly; posteriorly it extends along either side of the nucleus as two tubular processes that gradually decrease in diameter. The filiform nucleus tapers anteriorly and intrudes into the subscrosomal space. Posteriorly the nucleus has a lateral invagination that houses material of the so-called centriolar adjunct. Posterior to the centriolar adjuct and the nucleus are two crystalline mitochondrial derivatives and a centriole, respectively, the latter giving rise to the axoneme, which has a 9 + 9 + 2 arrangement of microtubules. In these respects the sperm are similar to those of platypleurine cicadas. However, some features seem unique to cicadettines, including the structural organization of an enlarged centriolar adjunct and the dimensions of the tails. The enlarged centriolar adjunct has a lamella-like substructure and can be considered a synapomorphic character in the Cicadettinae. It is, therefore, potentially useful in the separation of this subfamily from the Cicadinae. In addition, the great length of the sperm nucleus of long-headed sperm in M. matoposa could be a synapomorphy of this genus and related taphurine and cicadettine species.
- Full Text:
- Date Issued: 2006
Taxation and electronic commerce
- Stelloh, Marcus M, Stack, Elizabeth M
- Authors: Stelloh, Marcus M , Stack, Elizabeth M
- Date: 2008
- Subjects: To be catalogued
- Language: English
- Type: Conference paper
- Identifier: vital:6066 , http://hdl.handle.net/10962/d1004611
- Description: Transactions conducted using the Internet have expanded dramatically in the past few years and countries and their governments have become concerned about the consequences that electronic commerce may have on their tax revenues. Because of this many organisations and inter-governmental agencies have met to try to design a solution that will be compatible with the systems of the various countries and achieve tax neutrality. A number of proposals were made and discussed to try to design a fair and efficient e-tax system. The proposed system that is ultimately adopted must consider different tax bases and systems in order to achieve this. In this research the impact of e-commerce on the imposition of income tax was briefly referred to and four different proposals for levying value-added tax or sales tax were analysed in order to compare the advantages and disadvantages of each and to determine which system would most adequately address the needs of e-commerce. Certain modifications and additions to the proposed systems have been suggested in order to satisfy the specific needs of the South African tax system, while still taking other countries’ tax systems into account. Using Amazon.com Inc. and Skype Technologies South Africa Limited as examples, it is demonstrated how the new amended system will work. It was found that the proposed systems and the system adapted to meet the South African needs would, with a few relatively minor changes to the Value-Added Tax legislation, be suitable for the purposes of imposing value-added tax on e-commerce transactions.
- Full Text:
- Date Issued: 2008
- Authors: Stelloh, Marcus M , Stack, Elizabeth M
- Date: 2008
- Subjects: To be catalogued
- Language: English
- Type: Conference paper
- Identifier: vital:6066 , http://hdl.handle.net/10962/d1004611
- Description: Transactions conducted using the Internet have expanded dramatically in the past few years and countries and their governments have become concerned about the consequences that electronic commerce may have on their tax revenues. Because of this many organisations and inter-governmental agencies have met to try to design a solution that will be compatible with the systems of the various countries and achieve tax neutrality. A number of proposals were made and discussed to try to design a fair and efficient e-tax system. The proposed system that is ultimately adopted must consider different tax bases and systems in order to achieve this. In this research the impact of e-commerce on the imposition of income tax was briefly referred to and four different proposals for levying value-added tax or sales tax were analysed in order to compare the advantages and disadvantages of each and to determine which system would most adequately address the needs of e-commerce. Certain modifications and additions to the proposed systems have been suggested in order to satisfy the specific needs of the South African tax system, while still taking other countries’ tax systems into account. Using Amazon.com Inc. and Skype Technologies South Africa Limited as examples, it is demonstrated how the new amended system will work. It was found that the proposed systems and the system adapted to meet the South African needs would, with a few relatively minor changes to the Value-Added Tax legislation, be suitable for the purposes of imposing value-added tax on e-commerce transactions.
- Full Text:
- Date Issued: 2008
Preferential fuzzy sets: a key to voting patterns
- Authors: Murali, V
- Date: 2008-04-15
- Language: English
- Type: Text
- Identifier: vital:579 , http://hdl.handle.net/10962/d1012406
- Description: There is a one-to-one correspondence between ordered partitions and kernels of fuzzy subsets under a natural equivalence relation on them called preferential equality, on any n-element set Xn. We discuss some aspects of this correspondence with respect to counting voter’s choice or preference through the notions of Flags, Keychains and Pinned-flags.
- Full Text:
- Date Issued: 2008-04-15
- Authors: Murali, V
- Date: 2008-04-15
- Language: English
- Type: Text
- Identifier: vital:579 , http://hdl.handle.net/10962/d1012406
- Description: There is a one-to-one correspondence between ordered partitions and kernels of fuzzy subsets under a natural equivalence relation on them called preferential equality, on any n-element set Xn. We discuss some aspects of this correspondence with respect to counting voter’s choice or preference through the notions of Flags, Keychains and Pinned-flags.
- Full Text:
- Date Issued: 2008-04-15