Securing Real-time multimedia: A brief survey
- Cloran, Russell, Irwin, Barry V W, Terzoli, Alfredo
- Authors: Cloran, Russell , Irwin, Barry V W , Terzoli, Alfredo
- Date: 2005
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428887 , vital:72543 , https://digifors.cs.up.ac.za/issa/2005/Proceedings/Research/020_Article.pdf
- Description: Voice over IP (VoIP) enables cheaper and easier communication but can be less secure than the traditional TDM network. This paper is a guide to securing VoIP networks using current technologies and best practices. Physical and logical segregation of data and multimedia traf-fic is discussed. Current VoIP analysis tools are described with specific reference to their usefulness as a means of evaluating the quality of a secure VoIP system. Protocol enhancements, such as the Secure Re-al-time Transport Protocol and transport layer protection such as of-fered by IPSec, are discussed and evaluated. Finally, various secure VoIP implementation scenarios are discussed, with configurations combining these security solutions presented in the paper.
- Full Text:
- Date Issued: 2005
- Authors: Cloran, Russell , Irwin, Barry V W , Terzoli, Alfredo
- Date: 2005
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/428887 , vital:72543 , https://digifors.cs.up.ac.za/issa/2005/Proceedings/Research/020_Article.pdf
- Description: Voice over IP (VoIP) enables cheaper and easier communication but can be less secure than the traditional TDM network. This paper is a guide to securing VoIP networks using current technologies and best practices. Physical and logical segregation of data and multimedia traf-fic is discussed. Current VoIP analysis tools are described with specific reference to their usefulness as a means of evaluating the quality of a secure VoIP system. Protocol enhancements, such as the Secure Re-al-time Transport Protocol and transport layer protection such as of-fered by IPSec, are discussed and evaluated. Finally, various secure VoIP implementation scenarios are discussed, with configurations combining these security solutions presented in the paper.
- Full Text:
- Date Issued: 2005
Selecting medicinal plants for cultivation at Nqabara on the Eastern Cape Wild Coast, South Africa
- Keirungi, J, Fabricius, Christo
- Authors: Keirungi, J , Fabricius, Christo
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6637 , http://hdl.handle.net/10962/d1006862
- Description: [From introduction:] The intensive harvesting of medicinal plants for commercial trade in South Africa poses a threat to many species. Cultivation has therefore been considered as an alternative to collection in the wild. This paper aims to assess the feasibility of cultivating medicinal plants in the Nqabara Administrative Area on South Africa's Wild Coast. A combination of participatory and formal research methods was used to collect data on the importance of medicinal plants, collection localities, market prices, the time spent collecting plants and their ease of cultivation. The values attached to medicinal plants were mainly dependent on their market prices. Four of the five Nqabara traditional healers interviewed cultivated these plants in their home gardens, but many medicinal products were obtained in indigenous forests from the bark of large trees, which were unsuitable for cultivation. Collectors said that the proximity of forests to their homesteads and the richness of forests in medicinal plants influenced their selection of harvesting localities. There was no correlation between time spent collecting species and their market prices. These prices were, however, positively correlated with the species' perceived healing properties. Users acknowledged that harvesting had an adverse effect on large trees, are eager to cultivate them and are taking action to conserve indigenous forests. Community-based enterprises should focus on species that are easy to cultivate and have a high demand, such as Stangeria eriopus, Acalypha glabrata and Behnia reticulata but not Araujia sericifera, which is exotic and abundant. The main barriers to commercial cultivation are availability of suitable land, water, lack of start-up capital, and access to markets and to seeds. Cultivation of medicinal plants could contribute to the economic empowerment of women in rural areas.
- Full Text:
- Date Issued: 2005
- Authors: Keirungi, J , Fabricius, Christo
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6637 , http://hdl.handle.net/10962/d1006862
- Description: [From introduction:] The intensive harvesting of medicinal plants for commercial trade in South Africa poses a threat to many species. Cultivation has therefore been considered as an alternative to collection in the wild. This paper aims to assess the feasibility of cultivating medicinal plants in the Nqabara Administrative Area on South Africa's Wild Coast. A combination of participatory and formal research methods was used to collect data on the importance of medicinal plants, collection localities, market prices, the time spent collecting plants and their ease of cultivation. The values attached to medicinal plants were mainly dependent on their market prices. Four of the five Nqabara traditional healers interviewed cultivated these plants in their home gardens, but many medicinal products were obtained in indigenous forests from the bark of large trees, which were unsuitable for cultivation. Collectors said that the proximity of forests to their homesteads and the richness of forests in medicinal plants influenced their selection of harvesting localities. There was no correlation between time spent collecting species and their market prices. These prices were, however, positively correlated with the species' perceived healing properties. Users acknowledged that harvesting had an adverse effect on large trees, are eager to cultivate them and are taking action to conserve indigenous forests. Community-based enterprises should focus on species that are easy to cultivate and have a high demand, such as Stangeria eriopus, Acalypha glabrata and Behnia reticulata but not Araujia sericifera, which is exotic and abundant. The main barriers to commercial cultivation are availability of suitable land, water, lack of start-up capital, and access to markets and to seeds. Cultivation of medicinal plants could contribute to the economic empowerment of women in rural areas.
- Full Text:
- Date Issued: 2005
September 11 : catalyst for structural-genealogical narrative of a new world (Dis)order
- Authors: Buijs, Lorena Maria Elisa
- Date: 2005
- Subjects: September 11 Terrorist Attacks, 2001 , United States -- Politics and government -- 2001- , Terrorism -- Government policy -- United States , United States -- Foreign relations -- Middle East , Middle East -- Foreign relations -- United States , Islam and world politics , Terrorism -- Religious aspects -- Islam , Jihad
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2852 , http://hdl.handle.net/10962/d1006463 , September 11 Terrorist Attacks, 2001 , United States -- Politics and government -- 2001- , Terrorism -- Government policy -- United States , United States -- Foreign relations -- Middle East , Middle East -- Foreign relations -- United States , Islam and world politics , Terrorism -- Religious aspects -- Islam , Jihad
- Description: The attacks of September 11, 2001, have changed America forever. In a horrific manner the vulnerability of the highly developed states was demonstrated and exposed in world politics. The event is ushering a new political era where far reaching shifts in international relations are under way. In the post Cold-War international world it appears that the ideological conflict between capitalism and socialism has been replaced by a new world order. One that has retained the binary conflict structure of the Cold War, except that this binary is now presented by political Islam and consumerist's capitalism (Martin, 2000:155). Indeed, in the previous bipolar world order, the acute distinction between capitalism and communism served to attenuate the discord in and between religions. This complex blurring of distinctions has been systematically heightened since the end of the Cold War, as it has allowed Western governments to maintain controlling interests outside of their dominions (Gupta, 2002:6) . This struggle has since been conceived in a variety of different, but related ways: A 'Clash of Civilizations' (Huntington 1996), or as an inescapable dialectic typical of the process of globalization itself (Barber, 1996:245). In the case of Huntington's (1996:19-20) genealogical narrative, he refers to global politics and the way in which the future will be reconfigured according to cultural identities. The division along these cultural lines, will furthermore "shape" the patterns of cohesion, disintegration, and conflict in the Post-Cold War world" (Huntington, 1996:20). Huntington's thesis is rather overriding in explaining the clash between the supposedly 'West' vs. 'Rest', whose interaction is historically determined. Yet, the genealogical narrative is not sufficient in taking into account the dynamics of globalization. Benjamin Barber's structural narrative, on the other hand, goes to great lengths to illustrate the paradoxical relationship between Jihad and McWorld, and how both forces tend to survive in a world that they inevitably create. By' acknowledging the relevance of both binaries (East/West), it is hoped to transcend them by presenting a structural-genealogical grand narrative, which will essentially allow one to understand Jihad as being a structural moment of the genealogical narrative. Given this general strategy, it will become perceptible that Jihad is one form of anti-globalization as the structural narratives become part of the genealogical and the genealogical part of the structural. In essence, then, this thesis is attempting to come to grips with the phenomenon of September 11, from a political-philosophical perspective. More specifically, this study will firstly be looking at two different, but related narratives that have emerged post-September 11, to make sense of the event. Given the structural-genealogical approach, the central concern in this study is consequently to look at two separate but related interests. The one pertains to history and the other to historiography.
- Full Text:
- Date Issued: 2005
- Authors: Buijs, Lorena Maria Elisa
- Date: 2005
- Subjects: September 11 Terrorist Attacks, 2001 , United States -- Politics and government -- 2001- , Terrorism -- Government policy -- United States , United States -- Foreign relations -- Middle East , Middle East -- Foreign relations -- United States , Islam and world politics , Terrorism -- Religious aspects -- Islam , Jihad
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2852 , http://hdl.handle.net/10962/d1006463 , September 11 Terrorist Attacks, 2001 , United States -- Politics and government -- 2001- , Terrorism -- Government policy -- United States , United States -- Foreign relations -- Middle East , Middle East -- Foreign relations -- United States , Islam and world politics , Terrorism -- Religious aspects -- Islam , Jihad
- Description: The attacks of September 11, 2001, have changed America forever. In a horrific manner the vulnerability of the highly developed states was demonstrated and exposed in world politics. The event is ushering a new political era where far reaching shifts in international relations are under way. In the post Cold-War international world it appears that the ideological conflict between capitalism and socialism has been replaced by a new world order. One that has retained the binary conflict structure of the Cold War, except that this binary is now presented by political Islam and consumerist's capitalism (Martin, 2000:155). Indeed, in the previous bipolar world order, the acute distinction between capitalism and communism served to attenuate the discord in and between religions. This complex blurring of distinctions has been systematically heightened since the end of the Cold War, as it has allowed Western governments to maintain controlling interests outside of their dominions (Gupta, 2002:6) . This struggle has since been conceived in a variety of different, but related ways: A 'Clash of Civilizations' (Huntington 1996), or as an inescapable dialectic typical of the process of globalization itself (Barber, 1996:245). In the case of Huntington's (1996:19-20) genealogical narrative, he refers to global politics and the way in which the future will be reconfigured according to cultural identities. The division along these cultural lines, will furthermore "shape" the patterns of cohesion, disintegration, and conflict in the Post-Cold War world" (Huntington, 1996:20). Huntington's thesis is rather overriding in explaining the clash between the supposedly 'West' vs. 'Rest', whose interaction is historically determined. Yet, the genealogical narrative is not sufficient in taking into account the dynamics of globalization. Benjamin Barber's structural narrative, on the other hand, goes to great lengths to illustrate the paradoxical relationship between Jihad and McWorld, and how both forces tend to survive in a world that they inevitably create. By' acknowledging the relevance of both binaries (East/West), it is hoped to transcend them by presenting a structural-genealogical grand narrative, which will essentially allow one to understand Jihad as being a structural moment of the genealogical narrative. Given this general strategy, it will become perceptible that Jihad is one form of anti-globalization as the structural narratives become part of the genealogical and the genealogical part of the structural. In essence, then, this thesis is attempting to come to grips with the phenomenon of September 11, from a political-philosophical perspective. More specifically, this study will firstly be looking at two different, but related narratives that have emerged post-September 11, to make sense of the event. Given the structural-genealogical approach, the central concern in this study is consequently to look at two separate but related interests. The one pertains to history and the other to historiography.
- Full Text:
- Date Issued: 2005
Shakespeare and Africa: the dark lady of his sonnets revamped and other Africa-related associations. Xlibris Corporation
- Authors: Glover, Jayne
- Date: 2005
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/457820 , vital:75681 , https://hdl.handle.net/10520/EJC48069
- Description: This slim volume produced by Robert F. Fleissner addresses some of the connections between Shakespeare and Africa. His lengthy Foreword, in which he sets out, chapter by chapter, the contents of the book (mainly discussions on the identity and race of Shakespeare’s Dark Lady), provides a cogent, flowing argument that, in many ways, presents a clearer picture of Fleissner’s work on race and Shakespeare than the work as a whole, which is pieced together from his many years of research.
- Full Text:
- Date Issued: 2005
- Authors: Glover, Jayne
- Date: 2005
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/457820 , vital:75681 , https://hdl.handle.net/10520/EJC48069
- Description: This slim volume produced by Robert F. Fleissner addresses some of the connections between Shakespeare and Africa. His lengthy Foreword, in which he sets out, chapter by chapter, the contents of the book (mainly discussions on the identity and race of Shakespeare’s Dark Lady), provides a cogent, flowing argument that, in many ways, presents a clearer picture of Fleissner’s work on race and Shakespeare than the work as a whole, which is pieced together from his many years of research.
- Full Text:
- Date Issued: 2005
Situated culture, ethics and new learning theory: emerging perspectives in environmental education research
- Authors: Lotz-Sisitka, Heila
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6095 , http://hdl.handle.net/10962/d1008617
- Description: Celebrating the 8th International Invitational Research and Development Seminar. This edition of the EEASA Journal celebrates the hosting of the 8th International Invitational Research and Development Seminar on Environmental and Health Education in South Africa in March 2005. The International Invitational Research and Development Seminars are ‘special events’ in the field of environmental and health education research. They are characterised by their democratic, deliberative nature, and by their intent to scope innovation and methodological issues. First established some years ago in Copenhagen, Denmark, these seminars have provided an evolving international forum for researchers interested in research methodology to meet and frame new themes, trends and issues arising in the field of environmental education and health education research.
- Full Text:
- Date Issued: 2005
- Authors: Lotz-Sisitka, Heila
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6095 , http://hdl.handle.net/10962/d1008617
- Description: Celebrating the 8th International Invitational Research and Development Seminar. This edition of the EEASA Journal celebrates the hosting of the 8th International Invitational Research and Development Seminar on Environmental and Health Education in South Africa in March 2005. The International Invitational Research and Development Seminars are ‘special events’ in the field of environmental and health education research. They are characterised by their democratic, deliberative nature, and by their intent to scope innovation and methodological issues. First established some years ago in Copenhagen, Denmark, these seminars have provided an evolving international forum for researchers interested in research methodology to meet and frame new themes, trends and issues arising in the field of environmental education and health education research.
- Full Text:
- Date Issued: 2005
Social epistemology and its politically correct words: Avoiding absolutism, relativism, consensualism, and vulgar pragmatism
- Authors: Price, Leigh
- Date: 2005
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/373833 , vital:66727 , xlink:href="https://hdl.handle.net/10520/ejc-cristal-v10-n1-a7"
- Description: Where social epistemology has been applied in environmental education research, certain words have come to be associated with it, such as, "social," "contextualized," "strategic," "political," "pragmatic," "democratic," and "participatory." In this paper, I first suggest interpretations of these words that potentially avoid absolutism, relativism, consensualism, and vulgar pragmatism. I then identify interpretations that succumb to these problems. To support my argument, I draw on Peircean scholars, critical realist scholars, and scholars who rely on a tranche of metaphor that evoke images of connections, partnerships, webs, and rhizomes. These writers suggest a social epistemology in which in which relationships, not objects, are primary.
- Full Text:
- Date Issued: 2005
- Authors: Price, Leigh
- Date: 2005
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/373833 , vital:66727 , xlink:href="https://hdl.handle.net/10520/ejc-cristal-v10-n1-a7"
- Description: Where social epistemology has been applied in environmental education research, certain words have come to be associated with it, such as, "social," "contextualized," "strategic," "political," "pragmatic," "democratic," and "participatory." In this paper, I first suggest interpretations of these words that potentially avoid absolutism, relativism, consensualism, and vulgar pragmatism. I then identify interpretations that succumb to these problems. To support my argument, I draw on Peircean scholars, critical realist scholars, and scholars who rely on a tranche of metaphor that evoke images of connections, partnerships, webs, and rhizomes. These writers suggest a social epistemology in which in which relationships, not objects, are primary.
- Full Text:
- Date Issued: 2005
Socio-economic, cultural and policy issues impacting on community forestry development : a case study of Hlabisa district in Kwazulu-Natal
- Authors: Masuku, Sipho Sikhumbuzo
- Date: 2005
- Subjects: Forests and forestry -- South Africa -- KwaZulu-Natal , Forests and forestry -- Economic aspects -- South Africa -- KwaZulu-Natal , Forests and forestry -- Social aspect -- South Africa -- KwaZulu-Natal , Forests and forestry -- Cultural aspect -- South Africa -- KwaZulu-Natal
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10743 , http://hdl.handle.net/10948/818 , Forests and forestry -- South Africa -- KwaZulu-Natal , Forests and forestry -- Economic aspects -- South Africa -- KwaZulu-Natal , Forests and forestry -- Social aspect -- South Africa -- KwaZulu-Natal , Forests and forestry -- Cultural aspect -- South Africa -- KwaZulu-Natal
- Description: South Africa is not well-endowed with indigenous forests and those that remain are known to be degraded and declining at an alarming rate. This constitutes a direct threat to the quality of life of the resource-poor rural households which are directly dependent on the resources indigenous forests offer, as well as to ecological integrity. It is also recognised that the declining tree resources, particularly the indigenous tree species of high value, are increasingly threatened by a number of growing subsistence demands. This emphasises the need to establish, cultivate and conserve high-value tree species. Community forestry is recognised as a viable option for optimising land productivity; reducing pressure on indigenous forests and woodlands; ensuring a sustainable supply of desired tree products and services; and improving the quality of life of the resource-poor rural households. The primary purpose of Community Forestry Development (CFD) in the Hlabisa District is the provision of an information service and of technical support to enhance the livelihoods of rural communities by means of tree-related resources. Community forestry mainly focuses on tree resources that form an integral part of or contribute to rural people’s livelihoods. This includes small-scale growers (woodlots), woodlands and indigenous forests. Community forestry can be defined as tree growing and managed by the people for the people. Community forestry encompasses a wide range of activities which include farm forestry, agroforestry, village planting, woodlots, woodland management and indigenous-forest management by rural people, as well as tree planting in urban and peri-urban areas. Natural forests in South Africa account for less than 1 percent of the total land area. It has been suggested that these natural forests will no longer be able to meet the demand for forest products by 2020. The KwaZulu Department of Agriculture and Forestry embarked on community forestry in 1976 (but only on an ad hoc basis) as a possible solution to this dilemma. Later, the two South African pulp and paper giants, SAPPI and Mondi, started the Project Grow and Khulanathi Schemes respectively. One of the objectives of out-grower schemes was to encourage rural communities to plant trees on their own lands for the economic, social and environmental benefits trees offer. For example, timber could be sold to forestry companies. Financial assistance was offered to these communities to encourage implementation of such schemes. This exercise was aimed at bringing economic activity, capacity- building and community empowerment to the rural areas. The growers would benefit from the financial assistance and the readily available market provided by the company, while the company would be able to satisfy its demand for timber.
- Full Text:
- Date Issued: 2005
- Authors: Masuku, Sipho Sikhumbuzo
- Date: 2005
- Subjects: Forests and forestry -- South Africa -- KwaZulu-Natal , Forests and forestry -- Economic aspects -- South Africa -- KwaZulu-Natal , Forests and forestry -- Social aspect -- South Africa -- KwaZulu-Natal , Forests and forestry -- Cultural aspect -- South Africa -- KwaZulu-Natal
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10743 , http://hdl.handle.net/10948/818 , Forests and forestry -- South Africa -- KwaZulu-Natal , Forests and forestry -- Economic aspects -- South Africa -- KwaZulu-Natal , Forests and forestry -- Social aspect -- South Africa -- KwaZulu-Natal , Forests and forestry -- Cultural aspect -- South Africa -- KwaZulu-Natal
- Description: South Africa is not well-endowed with indigenous forests and those that remain are known to be degraded and declining at an alarming rate. This constitutes a direct threat to the quality of life of the resource-poor rural households which are directly dependent on the resources indigenous forests offer, as well as to ecological integrity. It is also recognised that the declining tree resources, particularly the indigenous tree species of high value, are increasingly threatened by a number of growing subsistence demands. This emphasises the need to establish, cultivate and conserve high-value tree species. Community forestry is recognised as a viable option for optimising land productivity; reducing pressure on indigenous forests and woodlands; ensuring a sustainable supply of desired tree products and services; and improving the quality of life of the resource-poor rural households. The primary purpose of Community Forestry Development (CFD) in the Hlabisa District is the provision of an information service and of technical support to enhance the livelihoods of rural communities by means of tree-related resources. Community forestry mainly focuses on tree resources that form an integral part of or contribute to rural people’s livelihoods. This includes small-scale growers (woodlots), woodlands and indigenous forests. Community forestry can be defined as tree growing and managed by the people for the people. Community forestry encompasses a wide range of activities which include farm forestry, agroforestry, village planting, woodlots, woodland management and indigenous-forest management by rural people, as well as tree planting in urban and peri-urban areas. Natural forests in South Africa account for less than 1 percent of the total land area. It has been suggested that these natural forests will no longer be able to meet the demand for forest products by 2020. The KwaZulu Department of Agriculture and Forestry embarked on community forestry in 1976 (but only on an ad hoc basis) as a possible solution to this dilemma. Later, the two South African pulp and paper giants, SAPPI and Mondi, started the Project Grow and Khulanathi Schemes respectively. One of the objectives of out-grower schemes was to encourage rural communities to plant trees on their own lands for the economic, social and environmental benefits trees offer. For example, timber could be sold to forestry companies. Financial assistance was offered to these communities to encourage implementation of such schemes. This exercise was aimed at bringing economic activity, capacity- building and community empowerment to the rural areas. The growers would benefit from the financial assistance and the readily available market provided by the company, while the company would be able to satisfy its demand for timber.
- Full Text:
- Date Issued: 2005
Somagwaza
- Ngqoko group participants, Composer not specified, Dargie, Dave
- Authors: Ngqoko group participants , Composer not specified , Dargie, Dave
- Date: 2005
- Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Alice sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/350839 , vital:63921 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC355b-06
- Description: Ngqoko Group participants at the University of Fort Hare
- Full Text: false
- Date Issued: 2005
- Authors: Ngqoko group participants , Composer not specified , Dargie, Dave
- Date: 2005
- Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Alice sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/350839 , vital:63921 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC355b-06
- Description: Ngqoko Group participants at the University of Fort Hare
- Full Text: false
- Date Issued: 2005
Soul tattoos : an exploration of the therapeutic self - the indelible and the disposable
- Authors: Naidoo, Leanne
- Date: 2005
- Subjects: Tattooing -- Therapeutic use
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9842 , http://hdl.handle.net/10948/373 , Tattooing -- Therapeutic use
- Description: From a social constructionist perspective, the self of the therapist is the only tool that she takes into therapy with her. The study of the therapeutic self therefore becomes important as this impacts on the quality of therapy received by the client. This treatise explores the development of the researcher’s therapeutic self through the storying of significant learning experiences in the course of her training in counselling psychology. An analysis of the narrative reveals the substance of some of the soul tattoos that make up her therapeutic self. The study was undertaken from an action research approach, thus emphasising the investigation of the therapeutic self in the field and feeding this information back into the practice of counselling psychology in the course of the research project. The themes extracted in the analysis reveal the process of action learning and what constituted significant learning experiences for the researcher. The researcher found that certain conditions were required for the formation of soul tattoos and that merely obtaining a masters degree in counselling psychology was not sufficient preparation for the practice of counselling psychology.
- Full Text:
- Date Issued: 2005
- Authors: Naidoo, Leanne
- Date: 2005
- Subjects: Tattooing -- Therapeutic use
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9842 , http://hdl.handle.net/10948/373 , Tattooing -- Therapeutic use
- Description: From a social constructionist perspective, the self of the therapist is the only tool that she takes into therapy with her. The study of the therapeutic self therefore becomes important as this impacts on the quality of therapy received by the client. This treatise explores the development of the researcher’s therapeutic self through the storying of significant learning experiences in the course of her training in counselling psychology. An analysis of the narrative reveals the substance of some of the soul tattoos that make up her therapeutic self. The study was undertaken from an action research approach, thus emphasising the investigation of the therapeutic self in the field and feeding this information back into the practice of counselling psychology in the course of the research project. The themes extracted in the analysis reveal the process of action learning and what constituted significant learning experiences for the researcher. The researcher found that certain conditions were required for the formation of soul tattoos and that merely obtaining a masters degree in counselling psychology was not sufficient preparation for the practice of counselling psychology.
- Full Text:
- Date Issued: 2005
Sperm morphology in four species of African platypleurine cicadas (Hemiptera: Cicadomorpha: Cicadidae)
- Chawanji, A S, Hodgson, Alan N, Villet, Martin H
- Authors: Chawanji, A S , Hodgson, Alan N , Villet, Martin H
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6917 , http://hdl.handle.net/10962/d1011880
- Description: Mature spermatozoa from four species of platypleurine cicadas (Albanycada albigera, Azanicada zuluensis, Platypleura capensis and P. hirtipennis) were examined by light and electron microscopy. The filiform sperm have a similar ultrastructure in all species but notable variations were found in sperm dimensions. All species produce more than one discrete length of nucleated, motile sperm, a form of polymorphism termed polymegaly. Polymegaly is expressed in two ways: sperm have bi- or trimodal head and tail lengths. The anterior parts of sperm heads are embedded in an elongate homogenous matrix forming a spermatodesm. The conical acrosome is deeply invaginated posteriorly, and sits on top of the nucleus. The acrosomal contents are differentiated internally with an electron-lucent central medulla and a denser cortex. The homogenously electron-dense nucleus is pointed anteriorly and is generally cylindrical, although posteriorly there is a lateral invagination that extends part-way along the nucleus. This invagination houses fine granular material of the centriolar adjunct. Vesicle-like elements that are associated with both the posterior nucleus and the centriolar adjunct are also found within the invagination. Immediately posterior of and adjoining the centriolar adjunct is a pair of mitochondrial derivatives that are elongated and extend for almost the entire length of the tail. The absence of accessory bodies in cicada sperm suggests that within the Cicadomorpha, the families Cicadidae and Cercopidae are closely affiliated.
- Full Text:
- Date Issued: 2005
- Authors: Chawanji, A S , Hodgson, Alan N , Villet, Martin H
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6917 , http://hdl.handle.net/10962/d1011880
- Description: Mature spermatozoa from four species of platypleurine cicadas (Albanycada albigera, Azanicada zuluensis, Platypleura capensis and P. hirtipennis) were examined by light and electron microscopy. The filiform sperm have a similar ultrastructure in all species but notable variations were found in sperm dimensions. All species produce more than one discrete length of nucleated, motile sperm, a form of polymorphism termed polymegaly. Polymegaly is expressed in two ways: sperm have bi- or trimodal head and tail lengths. The anterior parts of sperm heads are embedded in an elongate homogenous matrix forming a spermatodesm. The conical acrosome is deeply invaginated posteriorly, and sits on top of the nucleus. The acrosomal contents are differentiated internally with an electron-lucent central medulla and a denser cortex. The homogenously electron-dense nucleus is pointed anteriorly and is generally cylindrical, although posteriorly there is a lateral invagination that extends part-way along the nucleus. This invagination houses fine granular material of the centriolar adjunct. Vesicle-like elements that are associated with both the posterior nucleus and the centriolar adjunct are also found within the invagination. Immediately posterior of and adjoining the centriolar adjunct is a pair of mitochondrial derivatives that are elongated and extend for almost the entire length of the tail. The absence of accessory bodies in cicada sperm suggests that within the Cicadomorpha, the families Cicadidae and Cercopidae are closely affiliated.
- Full Text:
- Date Issued: 2005
Strategic leadership within the Duke of Edinburgh's International Award Association between 1988 and 2004
- Authors: Andrew, Craig Bruce
- Date: 2005
- Subjects: Duke of Edinburgh's Award (Organization) Duke of Edinburgh's Award -- History Nonprofit organizations -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:764 , http://hdl.handle.net/10962/d1003885
- Description: Providing strategic leadership for global Not-for-Profit organisations poses great challenges to the leadership structures of these voluntary organisations. This study looks at the phenomenon of strategic leadership in the Duke of Edinburgh’s (DOE) International Award Association (IAA) as a global Not-for-Profit Organisation (NPO). The main aim of the research was an in-depth examination of the processes involved in leadership at the top level in a global NPO. Eight strategic leaders from the top management team were interviewed. Further information was generated from a study of the Annual Reports spanning the 15 year period (1988/9 – 2003/4), and key strategic documents were used as supporting material. The research was conducted in a phenomenological paradigm, using the case study research method. Care was taken to minimize possible researcher bias and interpretations, as the researcher has been associated with this organisation for the past 18 years. It was found that the Royal Family play extremely valuable and multifaceted roles in the organisation. The triumvirate of The Royals; The Secretary General’s; and The Trustees; works well as individual ‘great groups’ yet when necessary, they form a collective collaborative grouping to effect strategic leadership for the IAA. The two main themes to emerge from the findings were the nature of the DOE as a global NPO and the role of strategic leadership in the DOE Award. The DOE Award has demonstrated that it has many unique strategic leadership features and is using these features to become more business-like in the application of its new strategic vision. The individual ‘great groups’ offer sound leadership throughout the process of overseeing and running the business of the DOE Award yet, when necessary and appropriate, these great groups appear to work collectively, perhaps in an unstructured manner, as the triumvirate of power. Their collective collaborative leadership is a unique feature of the DOE Award. The highly interactive role of the Royal Family is unique and sets the DOE Award apart from other similar youth organisations globally. The nature of the loose association of National Award Authorities all subscribing to the rules and conditions of association is also a very unique feature of this NPO. The DOE Award is not a movement organisation but is guided by its service ethic. The DOE Award is a service organisation in which the strategic leadership plays a crucial role yet the constitutional power resides with the International Award Association membership. This IAA membership meets every three years at the World Forum Triennium to approve all new policy and procedures.
- Full Text:
- Date Issued: 2005
- Authors: Andrew, Craig Bruce
- Date: 2005
- Subjects: Duke of Edinburgh's Award (Organization) Duke of Edinburgh's Award -- History Nonprofit organizations -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:764 , http://hdl.handle.net/10962/d1003885
- Description: Providing strategic leadership for global Not-for-Profit organisations poses great challenges to the leadership structures of these voluntary organisations. This study looks at the phenomenon of strategic leadership in the Duke of Edinburgh’s (DOE) International Award Association (IAA) as a global Not-for-Profit Organisation (NPO). The main aim of the research was an in-depth examination of the processes involved in leadership at the top level in a global NPO. Eight strategic leaders from the top management team were interviewed. Further information was generated from a study of the Annual Reports spanning the 15 year period (1988/9 – 2003/4), and key strategic documents were used as supporting material. The research was conducted in a phenomenological paradigm, using the case study research method. Care was taken to minimize possible researcher bias and interpretations, as the researcher has been associated with this organisation for the past 18 years. It was found that the Royal Family play extremely valuable and multifaceted roles in the organisation. The triumvirate of The Royals; The Secretary General’s; and The Trustees; works well as individual ‘great groups’ yet when necessary, they form a collective collaborative grouping to effect strategic leadership for the IAA. The two main themes to emerge from the findings were the nature of the DOE as a global NPO and the role of strategic leadership in the DOE Award. The DOE Award has demonstrated that it has many unique strategic leadership features and is using these features to become more business-like in the application of its new strategic vision. The individual ‘great groups’ offer sound leadership throughout the process of overseeing and running the business of the DOE Award yet, when necessary and appropriate, these great groups appear to work collectively, perhaps in an unstructured manner, as the triumvirate of power. Their collective collaborative leadership is a unique feature of the DOE Award. The highly interactive role of the Royal Family is unique and sets the DOE Award apart from other similar youth organisations globally. The nature of the loose association of National Award Authorities all subscribing to the rules and conditions of association is also a very unique feature of this NPO. The DOE Award is not a movement organisation but is guided by its service ethic. The DOE Award is a service organisation in which the strategic leadership plays a crucial role yet the constitutional power resides with the International Award Association membership. This IAA membership meets every three years at the World Forum Triennium to approve all new policy and procedures.
- Full Text:
- Date Issued: 2005
Strategies engaged by a South African beverage organisation entering African markets
- Authors: Brink, Andries Petrus
- Date: 2005
- Subjects: International business enterprises , Coca-cola Sabco (Firm) , Soft drink industry -- South Africa , International trade
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8544 , http://hdl.handle.net/10948/410 , International business enterprises , Coca-cola Sabco (Firm) , Soft drink industry -- South Africa , International trade
- Description: Africa is acknowledged as a vast, untapped market for consumer goods as trade barriers are coming down and economies are starting to develop. The need for consumer goods arises with economic activity. This poses the following question, which will be addressed by this research: How can potential African consumer markets be successfully unlocked by a South African beverage organisation, thereby reducing risk of failure and eliminating the cost of a hit-and-miss approach? The secondary study focused on evaluating the aspects involved with risks and the modes of entry into foreign markets. The macro-environmental factors affecting the expansion into foreign markets were investigated to determine what influence they had on the entry mode chosen for a specific country targeted for expansion. Finally the marketing factors influencing the entry mode were analysed. The significance of trade blocs together with the advantages thereof was included in the study. The primary study was based on the theory and principles of existing literature. The Coca-Cola Sabco organisation was taken as a case study. Four countries, namely Kenya, Uganda, Mozambique and Namibia, were investigated. Questionnaires containing a set of questions to satisfy the sub-problems were sent to the various country managers and their first layers of management. Likewise, interviews were conducted with Coca-Cola Sabco head office strategic management. The empirical results obtained, indicated a strong concurrence, with the theory of entry modes and the influences of macro-environmental factors. In certain aspects, however, some contradictions with the theory pertaining to the Coca-Cola Sabco organisation, were observed. The findings concurred with the theory in that risk were minimised by the acquisition of a going concern that already possessed the infrastructure and logistics such as raw material procurement, manufacturing staff skills, distribution networks and political contacts. The empirical results contradict theory with respect to location economies and scale economies, as the Coca-Cola Company’s franchise agreement excludes the exporting of beverage products. Furthermore, Coca-Cola Sabco becomes involved in expansion initiatives only in reaction to an invitation from the Coca-Cola Company and not of its own desire. Therefore, market surveys are conducted subsequent to an invitation from the Coca-Cola Company. South African organisations planning expansion initiatives into emerging African markets need to take the specific macro- environmental factors of the country in question into consideration in order to minimise risk. A franchise agreement restricting exporting as in the case of Coco-Cola Company or any other restrictive agreement, might cause a deviation from contemporary theory, for example, where markets will be assessed for purposes of location and scale economies. Deviations from contemporary theory could also occur where a franchise opportunity is offered in a specific country that may not be the preferred market choice, due to its lack of growth potential.
- Full Text:
- Date Issued: 2005
- Authors: Brink, Andries Petrus
- Date: 2005
- Subjects: International business enterprises , Coca-cola Sabco (Firm) , Soft drink industry -- South Africa , International trade
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8544 , http://hdl.handle.net/10948/410 , International business enterprises , Coca-cola Sabco (Firm) , Soft drink industry -- South Africa , International trade
- Description: Africa is acknowledged as a vast, untapped market for consumer goods as trade barriers are coming down and economies are starting to develop. The need for consumer goods arises with economic activity. This poses the following question, which will be addressed by this research: How can potential African consumer markets be successfully unlocked by a South African beverage organisation, thereby reducing risk of failure and eliminating the cost of a hit-and-miss approach? The secondary study focused on evaluating the aspects involved with risks and the modes of entry into foreign markets. The macro-environmental factors affecting the expansion into foreign markets were investigated to determine what influence they had on the entry mode chosen for a specific country targeted for expansion. Finally the marketing factors influencing the entry mode were analysed. The significance of trade blocs together with the advantages thereof was included in the study. The primary study was based on the theory and principles of existing literature. The Coca-Cola Sabco organisation was taken as a case study. Four countries, namely Kenya, Uganda, Mozambique and Namibia, were investigated. Questionnaires containing a set of questions to satisfy the sub-problems were sent to the various country managers and their first layers of management. Likewise, interviews were conducted with Coca-Cola Sabco head office strategic management. The empirical results obtained, indicated a strong concurrence, with the theory of entry modes and the influences of macro-environmental factors. In certain aspects, however, some contradictions with the theory pertaining to the Coca-Cola Sabco organisation, were observed. The findings concurred with the theory in that risk were minimised by the acquisition of a going concern that already possessed the infrastructure and logistics such as raw material procurement, manufacturing staff skills, distribution networks and political contacts. The empirical results contradict theory with respect to location economies and scale economies, as the Coca-Cola Company’s franchise agreement excludes the exporting of beverage products. Furthermore, Coca-Cola Sabco becomes involved in expansion initiatives only in reaction to an invitation from the Coca-Cola Company and not of its own desire. Therefore, market surveys are conducted subsequent to an invitation from the Coca-Cola Company. South African organisations planning expansion initiatives into emerging African markets need to take the specific macro- environmental factors of the country in question into consideration in order to minimise risk. A franchise agreement restricting exporting as in the case of Coco-Cola Company or any other restrictive agreement, might cause a deviation from contemporary theory, for example, where markets will be assessed for purposes of location and scale economies. Deviations from contemporary theory could also occur where a franchise opportunity is offered in a specific country that may not be the preferred market choice, due to its lack of growth potential.
- Full Text:
- Date Issued: 2005
Strategies for sustaining family business through succession planning and family creed
- Authors: Gwiliza, Nwabisa
- Date: 2005
- Subjects: Family-owned business enterprises -- South Africa -- Succession , Family corporations -- South Africa -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8537 , http://hdl.handle.net/10948/193 , Family-owned business enterprises -- South Africa -- Succession , Family corporations -- South Africa -- Management
- Description: Family business literature reveals that the majority of family businesses do not make it to the second generation, and quite a few are fortunate to be passed onto the third generation. Succession planning is the critical issue that enhances continuity of the family business. Relational influences indicate that the balancing of family systems and business systems is more likely to encourage high quality succession. The development of effective practical governance systems can help the family business achieve its strategy. External influences indicate that owner role adjustment, defined as the predecessor’s “letting go” in the firm, as well as the development and mentoring of the successor, shape the effectiveness of succession in the family business.
- Full Text:
- Date Issued: 2005
- Authors: Gwiliza, Nwabisa
- Date: 2005
- Subjects: Family-owned business enterprises -- South Africa -- Succession , Family corporations -- South Africa -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8537 , http://hdl.handle.net/10948/193 , Family-owned business enterprises -- South Africa -- Succession , Family corporations -- South Africa -- Management
- Description: Family business literature reveals that the majority of family businesses do not make it to the second generation, and quite a few are fortunate to be passed onto the third generation. Succession planning is the critical issue that enhances continuity of the family business. Relational influences indicate that the balancing of family systems and business systems is more likely to encourage high quality succession. The development of effective practical governance systems can help the family business achieve its strategy. External influences indicate that owner role adjustment, defined as the predecessor’s “letting go” in the firm, as well as the development and mentoring of the successor, shape the effectiveness of succession in the family business.
- Full Text:
- Date Issued: 2005
Strategies used by subject advisors and facilitators to support lesson planning with an environmental learning focus : a case study of the Eastern Cape Neep-Get cluster
- Authors: Mbambisa, Nomaledi Peggy
- Date: 2005
- Subjects: Educational change -- South Africa Education and state -- South Africa Environmental education -- South Africa Competency-based education Curriculum change -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1926 , http://hdl.handle.net/10962/d1007586
- Description: Over the past ten years, South Africa has undergone substantial changes, following the advent of democracy. Key amongst these changes being the transformation of educational policy. These policy changes have introduced new structural frameworks within which we operate (including myself as a subject advisor) and new roles for educators. These policy changes affect all the levels of the education system, and have an impact at school level, where teachers are now responsible for learning programme development (including a focus on lesson planning). Lesson planning in an outcomes-based education framework is a challenging aspect of policy implementation. South Africa is faced with the challenges associated with policy change and implementation. The role of the subject advisors and facilitators who support the teachers to make sense of the curriculum is crucial, as they provide the interface between policy and practice. They are the people who work most with teachers, and have a responsibility for curriculum implementation. This study aimed to explore the strategies which are used by subject advisors and facilitators to support teachers develop lesson plans with an environmental learning focus. A qualitative case study was conducted in which I looked at how the support processes were provided by the subject advisors and facilitators in the Eastern Cape in particular the NEEP-GET cluster in the Makana district. The study employed a range of data producing techniques such as questionnaires, interviews, document analysis and observation. The data was analysed to report the findings. The research indicates that some strategies are used to provide curriculum and pedagogical support and guidance, but that these are superficially treated and others have not been attempted at all. This therefore shows that further growth in this area is possible amongst the subject advisors. Recommendations relevant to both the subject advisors and the Department of Education so as to enhance the support processes and professional development of subject advisors have been made.
- Full Text:
- Date Issued: 2005
- Authors: Mbambisa, Nomaledi Peggy
- Date: 2005
- Subjects: Educational change -- South Africa Education and state -- South Africa Environmental education -- South Africa Competency-based education Curriculum change -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1926 , http://hdl.handle.net/10962/d1007586
- Description: Over the past ten years, South Africa has undergone substantial changes, following the advent of democracy. Key amongst these changes being the transformation of educational policy. These policy changes have introduced new structural frameworks within which we operate (including myself as a subject advisor) and new roles for educators. These policy changes affect all the levels of the education system, and have an impact at school level, where teachers are now responsible for learning programme development (including a focus on lesson planning). Lesson planning in an outcomes-based education framework is a challenging aspect of policy implementation. South Africa is faced with the challenges associated with policy change and implementation. The role of the subject advisors and facilitators who support the teachers to make sense of the curriculum is crucial, as they provide the interface between policy and practice. They are the people who work most with teachers, and have a responsibility for curriculum implementation. This study aimed to explore the strategies which are used by subject advisors and facilitators to support teachers develop lesson plans with an environmental learning focus. A qualitative case study was conducted in which I looked at how the support processes were provided by the subject advisors and facilitators in the Eastern Cape in particular the NEEP-GET cluster in the Makana district. The study employed a range of data producing techniques such as questionnaires, interviews, document analysis and observation. The data was analysed to report the findings. The research indicates that some strategies are used to provide curriculum and pedagogical support and guidance, but that these are superficially treated and others have not been attempted at all. This therefore shows that further growth in this area is possible amongst the subject advisors. Recommendations relevant to both the subject advisors and the Department of Education so as to enhance the support processes and professional development of subject advisors have been made.
- Full Text:
- Date Issued: 2005
Stress, coping resources and adjustment of married mothers in the teaching profession
- Authors: Nell, Reinette Deidre
- Date: 2005
- Subjects: Women teachers -- Life skills assessment -- South Africa , Work and family -- South Africa -- Psychological aspects , Life skills , Stress (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9851 , http://hdl.handle.net/10948/387 , Women teachers -- Life skills assessment -- South Africa , Work and family -- South Africa -- Psychological aspects , Life skills , Stress (Psychology)
- Description: The changes that have taken place in the South African educational system over the past few years have placed teachers under increasing stress. While abundant overseas literature is available regarding teacher stress, limited studies have focused specifically on South African samples. Female teachers, and working mothers, often experience additional stressors to men. Studies on women’s health have received little attention in comparison with the magnitude of research conducted on men’s health. The aim of the current study was to explore and describe the stress, coping resources and adjustment of married mothers in the teaching profession, and to explore and describe the patterns of stress and coping resources of these women. A non-experimental, exploratory descriptive study was employed. A biographical questionnaire and three paper-and-pencil measures, namely the Experience of Work and Life Questionnaire, the Coping Resources Inventory and the Personal, Home, Social and Formal Relations Questionnaire, were administered to 31 full-time primary school teachers who are married mothers of dependent children under the age of 14 years. A non-probability convenience sampling technique was employed. Descriptive statistics and cluster analysis were used in the data analysis. The results of the WLQ for this sample indicated that the mean score for the total level of stress fell within the high range, but with regards to the mode, the majority of the participants had average scores. The results of the CRI indicated an average level of coping resources for the present sample. The sample scored slightly above average on seven of the eleven components of the adjustment areas of the PHSF and slightly below average on the other four components. The participants in cluster one had average levels of stress and an average level of coping resources. The participants in cluster two scored very high levels of stress and average levels of coping resources. The participants in cluster three had very high levels of stress and low levels of coping resources. Suggestions were made for future research involving the stress, coping resources and adjustment of married mothers in the teaching profession. Finally, the limitations as well as the value of the research were outlined.
- Full Text:
- Date Issued: 2005
- Authors: Nell, Reinette Deidre
- Date: 2005
- Subjects: Women teachers -- Life skills assessment -- South Africa , Work and family -- South Africa -- Psychological aspects , Life skills , Stress (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9851 , http://hdl.handle.net/10948/387 , Women teachers -- Life skills assessment -- South Africa , Work and family -- South Africa -- Psychological aspects , Life skills , Stress (Psychology)
- Description: The changes that have taken place in the South African educational system over the past few years have placed teachers under increasing stress. While abundant overseas literature is available regarding teacher stress, limited studies have focused specifically on South African samples. Female teachers, and working mothers, often experience additional stressors to men. Studies on women’s health have received little attention in comparison with the magnitude of research conducted on men’s health. The aim of the current study was to explore and describe the stress, coping resources and adjustment of married mothers in the teaching profession, and to explore and describe the patterns of stress and coping resources of these women. A non-experimental, exploratory descriptive study was employed. A biographical questionnaire and three paper-and-pencil measures, namely the Experience of Work and Life Questionnaire, the Coping Resources Inventory and the Personal, Home, Social and Formal Relations Questionnaire, were administered to 31 full-time primary school teachers who are married mothers of dependent children under the age of 14 years. A non-probability convenience sampling technique was employed. Descriptive statistics and cluster analysis were used in the data analysis. The results of the WLQ for this sample indicated that the mean score for the total level of stress fell within the high range, but with regards to the mode, the majority of the participants had average scores. The results of the CRI indicated an average level of coping resources for the present sample. The sample scored slightly above average on seven of the eleven components of the adjustment areas of the PHSF and slightly below average on the other four components. The participants in cluster one had average levels of stress and an average level of coping resources. The participants in cluster two scored very high levels of stress and average levels of coping resources. The participants in cluster three had very high levels of stress and low levels of coping resources. Suggestions were made for future research involving the stress, coping resources and adjustment of married mothers in the teaching profession. Finally, the limitations as well as the value of the research were outlined.
- Full Text:
- Date Issued: 2005
Stress-inducible protein 1: a bioinformatic analysis of the human, mouse and yeast STI1 gene structure
- Authors: Aken, Bronwen Louise
- Date: 2005
- Subjects: Molecular chaperones , Proteins -- Analysis , Heat shock proteins , Bioinformatics , Genetics -- Data processing
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3990 , http://hdl.handle.net/10962/d1004049 , Molecular chaperones , Proteins -- Analysis , Heat shock proteins , Bioinformatics , Genetics -- Data processing
- Description: Stress-inducible protein 1 (Sti1) is a 60 kDa eukaryotic protein that is important under stress and non-stress conditions. Human Sti1 is also known as the Hsp70/Hsp90 organising protein (Hop) that coordinates the functional cooperation of heat shock protein 70 (Hsp70) and heat shock protein 90 (Hsp90) during the folding of various transcription factors and kinases, including certain oncogenic proteins and prion proteins. Limited studies have been conducted on the STI1 gene structure. Thus, the aim of this study was to develop a comprehensive description of human STI1 (hSTI1), mouse STI1 (mSTI1), and yeast STI1 (ySTI1) genes, using a bioinformatic approach. Genes encoded near the STI1 loci were identified for the three organisms using National Centre for Biotechnology Information (NCBI) MapViewer and the Saccharomyces Genome Database. Exon/intron boundaries were predicted using Hidden Markov model gene prediction software (HMMGene) and Genscan, and by alignment of the mRNA sequence with the genomic DNA sequence. Transcription factor binding sites (TFBS) were predicted by scanning the region 1000 base pairs (bp) upstream of the STI1 orthologues’ transcription start site (TSS) with Alibaba, Transcription element search software (TESS) and Transcription factor search (TFSearch). The promoter region was defined by comparing the number, type and position of TFBS across the orthologous STI1 genes. Additional putative TFBS were identified for ySTI1 by searching with software that aligns nucleic acid conserved elements (AlignACE) for over-represented motifs in the region upstream of the TSS of genes thought to be co-regulated with ySTI1. This study showed that hSTI1 and mSTI1 occur in a region of synteny with a number of genes of related function. Both hSTI1 and mSTI1 comprised 14 putative exons, while ySTI1 was encoded on a single exon. Human and mouse STI1 shared a perfectly conserved 55 bp region spanning their predicted TSS, although their TATA boxes were not conserved. A putative CpG island was identified in the region from -500 to +100 bp relative to the hSTI1 and mSTI1 TSS. This region overlapped with a region of high TFBS density, suggesting that the core promoter region was located in the region approximately 100 to 200 bp upstream of the TSS. Several conserved clusters of TFBS were also identified upstream of this promoter region, including binding sites for stimulatory protein 1 (Sp1), heat shock factor (HSF), nuclear factor kappa B (NF-kappaB), and the cAMP/enhancer binding protein (C/EBP). Microarray data suggested that ySTI1 was co-regulated with several heat shock proteins and substrates of the Hsp70/Hsp90 heterocomplex, and several putative regulatory elements were identified in the upstream region of these co-regulated genes, including a motif for HSF binding. The results of this research suggest several avenues of future experimental work, including the confirmation of the proposed core promoter, upstream regulatory elements, and CpG island, and the investigation into the co-regulation of mammalian STI1 with its surrounding genes. These results could also be used to inform STI1 gene knockout experiments in mice, to assess the biological importance of mammalian STI1.
- Full Text:
- Date Issued: 2005
- Authors: Aken, Bronwen Louise
- Date: 2005
- Subjects: Molecular chaperones , Proteins -- Analysis , Heat shock proteins , Bioinformatics , Genetics -- Data processing
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3990 , http://hdl.handle.net/10962/d1004049 , Molecular chaperones , Proteins -- Analysis , Heat shock proteins , Bioinformatics , Genetics -- Data processing
- Description: Stress-inducible protein 1 (Sti1) is a 60 kDa eukaryotic protein that is important under stress and non-stress conditions. Human Sti1 is also known as the Hsp70/Hsp90 organising protein (Hop) that coordinates the functional cooperation of heat shock protein 70 (Hsp70) and heat shock protein 90 (Hsp90) during the folding of various transcription factors and kinases, including certain oncogenic proteins and prion proteins. Limited studies have been conducted on the STI1 gene structure. Thus, the aim of this study was to develop a comprehensive description of human STI1 (hSTI1), mouse STI1 (mSTI1), and yeast STI1 (ySTI1) genes, using a bioinformatic approach. Genes encoded near the STI1 loci were identified for the three organisms using National Centre for Biotechnology Information (NCBI) MapViewer and the Saccharomyces Genome Database. Exon/intron boundaries were predicted using Hidden Markov model gene prediction software (HMMGene) and Genscan, and by alignment of the mRNA sequence with the genomic DNA sequence. Transcription factor binding sites (TFBS) were predicted by scanning the region 1000 base pairs (bp) upstream of the STI1 orthologues’ transcription start site (TSS) with Alibaba, Transcription element search software (TESS) and Transcription factor search (TFSearch). The promoter region was defined by comparing the number, type and position of TFBS across the orthologous STI1 genes. Additional putative TFBS were identified for ySTI1 by searching with software that aligns nucleic acid conserved elements (AlignACE) for over-represented motifs in the region upstream of the TSS of genes thought to be co-regulated with ySTI1. This study showed that hSTI1 and mSTI1 occur in a region of synteny with a number of genes of related function. Both hSTI1 and mSTI1 comprised 14 putative exons, while ySTI1 was encoded on a single exon. Human and mouse STI1 shared a perfectly conserved 55 bp region spanning their predicted TSS, although their TATA boxes were not conserved. A putative CpG island was identified in the region from -500 to +100 bp relative to the hSTI1 and mSTI1 TSS. This region overlapped with a region of high TFBS density, suggesting that the core promoter region was located in the region approximately 100 to 200 bp upstream of the TSS. Several conserved clusters of TFBS were also identified upstream of this promoter region, including binding sites for stimulatory protein 1 (Sp1), heat shock factor (HSF), nuclear factor kappa B (NF-kappaB), and the cAMP/enhancer binding protein (C/EBP). Microarray data suggested that ySTI1 was co-regulated with several heat shock proteins and substrates of the Hsp70/Hsp90 heterocomplex, and several putative regulatory elements were identified in the upstream region of these co-regulated genes, including a motif for HSF binding. The results of this research suggest several avenues of future experimental work, including the confirmation of the proposed core promoter, upstream regulatory elements, and CpG island, and the investigation into the co-regulation of mammalian STI1 with its surrounding genes. These results could also be used to inform STI1 gene knockout experiments in mice, to assess the biological importance of mammalian STI1.
- Full Text:
- Date Issued: 2005
Students’ engagement with learning theory
- Authors: Schudel, Ingrid J
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6093 , http://hdl.handle.net/10962/d1008615
- Description: This paper reflects on a module on ‘Teaching and Learning Interactions’, presented as part of the Rhodes University Advanced Certificate in Education (Environmental Education).The module is designed to help students use theoretical logic to enhance (not replace) their practical logic of how teaching and learning takes place. Data was analysed from three teaching and learning activities in the module. After the first participatory activity on water and sanitation, students narrated what teaching and learning had taken place using language available from their prior experiences. In a second activity students were introduced to explanations of learning, provided by learning theorists. In the third activity students analysed a case study, using a variety of questions relating to teaching and learning. They then had to consider these same questions in the light of a participatory on-course teaching and learning activity. The paper reflects on how students have used understandings of the nature of reality, the construction of knowledge, the use of language, situated learning, action competence and social change, in order to narrate their teaching and learning experiences on the ACE(EE) course. Through this, the paper trials a reflexive approach to the teaching of learning theory in environmental education.
- Full Text:
- Date Issued: 2005
- Authors: Schudel, Ingrid J
- Date: 2005
- Language: English
- Type: Article
- Identifier: vital:6093 , http://hdl.handle.net/10962/d1008615
- Description: This paper reflects on a module on ‘Teaching and Learning Interactions’, presented as part of the Rhodes University Advanced Certificate in Education (Environmental Education).The module is designed to help students use theoretical logic to enhance (not replace) their practical logic of how teaching and learning takes place. Data was analysed from three teaching and learning activities in the module. After the first participatory activity on water and sanitation, students narrated what teaching and learning had taken place using language available from their prior experiences. In a second activity students were introduced to explanations of learning, provided by learning theorists. In the third activity students analysed a case study, using a variety of questions relating to teaching and learning. They then had to consider these same questions in the light of a participatory on-course teaching and learning activity. The paper reflects on how students have used understandings of the nature of reality, the construction of knowledge, the use of language, situated learning, action competence and social change, in order to narrate their teaching and learning experiences on the ACE(EE) course. Through this, the paper trials a reflexive approach to the teaching of learning theory in environmental education.
- Full Text:
- Date Issued: 2005
Study of the skincalm filling process at Aspen Pharmacare applying some six sigma principles
- Authors: Marx, Johannes
- Date: 2005
- Subjects: Ointments -- Packaging , Six sigma (Quality control standard)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10369 , http://hdl.handle.net/10948/184 , Ointments -- Packaging , Six sigma (Quality control standard)
- Description: Aspen Pharmacare is listed on the Johannesburg Securities Exchange South Africa (JSE) and is Africa’s largest pharmaceutical manufacturer. The company is a major supplier of branded pharmaceutical and healthcare products to the local and selected international markets. For decades, Aspen has manufactured a basket of affordable, quality, and effective products for the ethical, generic over-the-counter (OTC) and personal care markets. Aspen is also the leading supplier of generic medicines to the public sector, providing comprehensive coverage of the products on the Essential Drug List. Aspen continues to deliver on its commitment toward playing a role in social responsibility diseases such as HIV/AIDS, tuberculosis and malaria. In August 2003 Aspen developed Africa’s first generic anti-retroviral drug, namely Aspen-Stavudine. Aspen’s manufacturing facilities are based in Port Elizabeth (PE) and East London. Aspen has recently completed an Oral Solid Dosage (OSD) manufacturing facility worth approximately R150 million in PE. The Group manufactures approximately 20 tons of product daily and in excess of 400 tons of solid dosage pharmaceuticals, which equates to more than 2 billion tablets. In addition, more than 3 million litres of liquid pharmaceuticals and over 200 tons of pharmaceutical creams and ointments are produced per year [1]. Aspen excels at delivering quality products and services, exceeding customer expectations, complying with international standards in an environment that cultivates technical expertise and innovation. Following this philosophy through to the shop floor areas mean that there are always initiatives in continuous production improvement. One of these improvement projects introduced is called Six Sigma. 8 Ten members of the staff, selected from different expertise fields in the company were trained in Six Sigma. Knowledge gained from the two week training course were applied to different areas in the factory using Six Sigma principles. This dissertation focuses on the study undertaken in one of production areas, namely the filling process of the ointments and creams at the Aspen Port Elizabeth facility.
- Full Text:
- Date Issued: 2005
- Authors: Marx, Johannes
- Date: 2005
- Subjects: Ointments -- Packaging , Six sigma (Quality control standard)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10369 , http://hdl.handle.net/10948/184 , Ointments -- Packaging , Six sigma (Quality control standard)
- Description: Aspen Pharmacare is listed on the Johannesburg Securities Exchange South Africa (JSE) and is Africa’s largest pharmaceutical manufacturer. The company is a major supplier of branded pharmaceutical and healthcare products to the local and selected international markets. For decades, Aspen has manufactured a basket of affordable, quality, and effective products for the ethical, generic over-the-counter (OTC) and personal care markets. Aspen is also the leading supplier of generic medicines to the public sector, providing comprehensive coverage of the products on the Essential Drug List. Aspen continues to deliver on its commitment toward playing a role in social responsibility diseases such as HIV/AIDS, tuberculosis and malaria. In August 2003 Aspen developed Africa’s first generic anti-retroviral drug, namely Aspen-Stavudine. Aspen’s manufacturing facilities are based in Port Elizabeth (PE) and East London. Aspen has recently completed an Oral Solid Dosage (OSD) manufacturing facility worth approximately R150 million in PE. The Group manufactures approximately 20 tons of product daily and in excess of 400 tons of solid dosage pharmaceuticals, which equates to more than 2 billion tablets. In addition, more than 3 million litres of liquid pharmaceuticals and over 200 tons of pharmaceutical creams and ointments are produced per year [1]. Aspen excels at delivering quality products and services, exceeding customer expectations, complying with international standards in an environment that cultivates technical expertise and innovation. Following this philosophy through to the shop floor areas mean that there are always initiatives in continuous production improvement. One of these improvement projects introduced is called Six Sigma. 8 Ten members of the staff, selected from different expertise fields in the company were trained in Six Sigma. Knowledge gained from the two week training course were applied to different areas in the factory using Six Sigma principles. This dissertation focuses on the study undertaken in one of production areas, namely the filling process of the ointments and creams at the Aspen Port Elizabeth facility.
- Full Text:
- Date Issued: 2005
Study South Africa
- International Education Association of South Africa (IEASA), Kishun, Roshen
- Authors: International Education Association of South Africa (IEASA) , Kishun, Roshen
- Date: 2005
- Subjects: Education, Higher -- South Africa , Education and globalization -- South Africa Student mobility -- Africa International education -- South Africa Education, Higher -- International cooperation , Universities and colleges -- South Africa , Technical Institutes -- South Africa , Vocational guidance -- South Africa
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/65344 , vital:28751 , ISBN 0123218931
- Description: [Message from the President of IEASA, Dr Roshen Kishun]: We salute the thousands of South Africans From diverse racial backgrounds who 50 years ago put forward their vision, encapsulated in the Freedom Charter, to keep doors of education open. As we celebrate the 50th anniversary of this historic event we are aware of the Foundations laid then to allow us to reconnect to the world. In choosing “lessons in diversity' as the theme For the Sth edition of Study South Africa we support the need For South African higher education to keep its doors open in meeting the development challenges of Africa. The year 2005 has been described as critical For Africa because of a number of Factors that have come together. These include the New Partnership For Africa’s Development which spells out action plans to tackle some of the more intractable problems that Africa Faces, the Formation of the African Union with clear guidelines For governance and peace, and the Pan-African Parliament which promotes the concept of working together to solve the continent's problems. The launch of the Southern African Regional Universities Association in early 2005 by 45 of the region’s vice-chancellors recognised that the excellence and sustainability of university education, research and development will be a leading contributor to Future growth and poverty alleviation. Despite the tides of limited resources, external demands and internal policy challenges, the vice-chancellors were unequivocally committed to advancing the development agenda of higher education on the African continent. Critically, in recent years there has been acknowledgement of the ability of higher education to bring about economic and democratic reforms, as evidenced by the commitment and concerted efforts made by Foundations and funding agencies to support the improvement of higher education institutions in Africa. Most important from our perspective is the support for the ’’renewal’’ of higher education institutions as they are considered to be key vehicles For development on the continent. The Commission For Africa report, published in March 2005, endorses the Association of African Universities, Association of Commonwealth Universities and Higher Education South Africa’s joint 10-year partnership programme, Renewing the African University, The partnership programme calls, among other things, For constructive engagement between states and higher education institutions, increasing North-South and South-South collaboration, internationalisation of the curriculum and partnerships between universities and the corporate sector. The Commission makes clear its conviction that higher education's contribution to building professional skills and knowledge is key to achieving Fundamental development changes. The need for centres of excellence in science, technology and engineering is highlighted as key to Future development and growth. Higher education institutions need to be the “breeding ground For the skilled individuals whom the continent needs". The report stresses the need For urgent attention to be given to the management of natural resources, of Forests and water, improving sanitation and strengthening health systems to deal with pandemics such as malaria, tuberculosis and HIV-Aids. Other important developments needed are building the human and institutional capacity for good governance and strengthening leadership in public life, civil society and business. In Focusing on the theme “lessons in diversity’ the Guide captures the richness of the various “diversities ' in the South African higher education landscape. It describes the radical transformation of higher education in South Africa over more than a decade. It identifies South Africa's research system as being “by Far the biggest in Africa” and demonstrates the important role South African higher education can play in meeting the challenges of Africa. I hope that the information provided will allow those interested in South African education to make informed choices. , 5th Edition
- Full Text:
- Date Issued: 2005
- Authors: International Education Association of South Africa (IEASA) , Kishun, Roshen
- Date: 2005
- Subjects: Education, Higher -- South Africa , Education and globalization -- South Africa Student mobility -- Africa International education -- South Africa Education, Higher -- International cooperation , Universities and colleges -- South Africa , Technical Institutes -- South Africa , Vocational guidance -- South Africa
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/65344 , vital:28751 , ISBN 0123218931
- Description: [Message from the President of IEASA, Dr Roshen Kishun]: We salute the thousands of South Africans From diverse racial backgrounds who 50 years ago put forward their vision, encapsulated in the Freedom Charter, to keep doors of education open. As we celebrate the 50th anniversary of this historic event we are aware of the Foundations laid then to allow us to reconnect to the world. In choosing “lessons in diversity' as the theme For the Sth edition of Study South Africa we support the need For South African higher education to keep its doors open in meeting the development challenges of Africa. The year 2005 has been described as critical For Africa because of a number of Factors that have come together. These include the New Partnership For Africa’s Development which spells out action plans to tackle some of the more intractable problems that Africa Faces, the Formation of the African Union with clear guidelines For governance and peace, and the Pan-African Parliament which promotes the concept of working together to solve the continent's problems. The launch of the Southern African Regional Universities Association in early 2005 by 45 of the region’s vice-chancellors recognised that the excellence and sustainability of university education, research and development will be a leading contributor to Future growth and poverty alleviation. Despite the tides of limited resources, external demands and internal policy challenges, the vice-chancellors were unequivocally committed to advancing the development agenda of higher education on the African continent. Critically, in recent years there has been acknowledgement of the ability of higher education to bring about economic and democratic reforms, as evidenced by the commitment and concerted efforts made by Foundations and funding agencies to support the improvement of higher education institutions in Africa. Most important from our perspective is the support for the ’’renewal’’ of higher education institutions as they are considered to be key vehicles For development on the continent. The Commission For Africa report, published in March 2005, endorses the Association of African Universities, Association of Commonwealth Universities and Higher Education South Africa’s joint 10-year partnership programme, Renewing the African University, The partnership programme calls, among other things, For constructive engagement between states and higher education institutions, increasing North-South and South-South collaboration, internationalisation of the curriculum and partnerships between universities and the corporate sector. The Commission makes clear its conviction that higher education's contribution to building professional skills and knowledge is key to achieving Fundamental development changes. The need for centres of excellence in science, technology and engineering is highlighted as key to Future development and growth. Higher education institutions need to be the “breeding ground For the skilled individuals whom the continent needs". The report stresses the need For urgent attention to be given to the management of natural resources, of Forests and water, improving sanitation and strengthening health systems to deal with pandemics such as malaria, tuberculosis and HIV-Aids. Other important developments needed are building the human and institutional capacity for good governance and strengthening leadership in public life, civil society and business. In Focusing on the theme “lessons in diversity’ the Guide captures the richness of the various “diversities ' in the South African higher education landscape. It describes the radical transformation of higher education in South Africa over more than a decade. It identifies South Africa's research system as being “by Far the biggest in Africa” and demonstrates the important role South African higher education can play in meeting the challenges of Africa. I hope that the information provided will allow those interested in South African education to make informed choices. , 5th Edition
- Full Text:
- Date Issued: 2005
Supervision : a Foucaultian exploration of institutional and interpersonal power relations between postgraduate supervisors, their students and the university domain
- Authors: Rau, Asta
- Date: 2005
- Subjects: Foucault, Michel, 1926-1984 -- Methodology Foucault, Michel, 1926-1984 -- Criticism and interpretation Graduate students -- Supervision of Dissertations, Academic
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1786 , http://hdl.handle.net/10962/d1003671
- Description: Supervision is widely acknowledged as influencing the quality of postgraduate theses, and by association, of postgraduates. Despite this, publications on conducting research offer far less guidance on managing the supervision relationship than on the practicalities of producing a thesis. In-depth, qualitative supervision studies are few and fewer still examine power in the supervision relationship. Michel Foucault’s insights are used to explore the question: How do postgraduate supervisors and their Master’s students experience the supervision relationship and how are the dynamics of interpersonal and institutional power implicated in these relationships? Foucault argues that power relations always involve resistances; these function primarily through institutionalized discourses to produce different forms of knowledge, one form of which is identity or subjectivity. Accordingly, power relations are explored in terms of thesis-as-product, person-as-product and the impact of both on the mediation of knowledge in the educational domain. Four institutionalized discourses in the university domain are examined: · Commercial educational management discourse: targets academics through issues of quality assurance, throughput, publication, research productivity and funding. · Anarchic educational leadership discourse: integrates quantum principles with commercial demands, change management strategies and meaningful participation. · Humanistic discourse: favours a pastoral ethic and is person-centered. · Holistic discourse: cultivates ecological sensibility and values the interconnectedness of all aspects of being-in-the-world. Data collected in sixteen semi-structured interviews with three matched supervisor-student pairs selected from the humanities and education faculties of one South African university, are presented as case studies. Data analysis combines grounded theory techniques with selected aspects of Foucault’s methods. A conceptual model is devised to analyse how participants use resistance strategies to interface their autonomy and dependency with their expectations, abilities, and professional and pastoral care. The research yields rich data in which several thematic correlations in interpersonal and institutional power dynamics are grounded. These include: the significance of supervisor-student matching; links between expectations, abilities, the way participants negotiate power and the quality of professional and pastoral care they experience; the benefit of personal affinity to thesis-as-product and person-as-product; and the impact of commercial demands on participants’ power relations. Participants tend to reproduce the discourses in which they are embedded and adopt or adapt aspects of contesting discourses to this end. Potential avenues are identified for improving supervision practice and for further research.
- Full Text:
- Date Issued: 2005
- Authors: Rau, Asta
- Date: 2005
- Subjects: Foucault, Michel, 1926-1984 -- Methodology Foucault, Michel, 1926-1984 -- Criticism and interpretation Graduate students -- Supervision of Dissertations, Academic
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1786 , http://hdl.handle.net/10962/d1003671
- Description: Supervision is widely acknowledged as influencing the quality of postgraduate theses, and by association, of postgraduates. Despite this, publications on conducting research offer far less guidance on managing the supervision relationship than on the practicalities of producing a thesis. In-depth, qualitative supervision studies are few and fewer still examine power in the supervision relationship. Michel Foucault’s insights are used to explore the question: How do postgraduate supervisors and their Master’s students experience the supervision relationship and how are the dynamics of interpersonal and institutional power implicated in these relationships? Foucault argues that power relations always involve resistances; these function primarily through institutionalized discourses to produce different forms of knowledge, one form of which is identity or subjectivity. Accordingly, power relations are explored in terms of thesis-as-product, person-as-product and the impact of both on the mediation of knowledge in the educational domain. Four institutionalized discourses in the university domain are examined: · Commercial educational management discourse: targets academics through issues of quality assurance, throughput, publication, research productivity and funding. · Anarchic educational leadership discourse: integrates quantum principles with commercial demands, change management strategies and meaningful participation. · Humanistic discourse: favours a pastoral ethic and is person-centered. · Holistic discourse: cultivates ecological sensibility and values the interconnectedness of all aspects of being-in-the-world. Data collected in sixteen semi-structured interviews with three matched supervisor-student pairs selected from the humanities and education faculties of one South African university, are presented as case studies. Data analysis combines grounded theory techniques with selected aspects of Foucault’s methods. A conceptual model is devised to analyse how participants use resistance strategies to interface their autonomy and dependency with their expectations, abilities, and professional and pastoral care. The research yields rich data in which several thematic correlations in interpersonal and institutional power dynamics are grounded. These include: the significance of supervisor-student matching; links between expectations, abilities, the way participants negotiate power and the quality of professional and pastoral care they experience; the benefit of personal affinity to thesis-as-product and person-as-product; and the impact of commercial demands on participants’ power relations. Participants tend to reproduce the discourses in which they are embedded and adopt or adapt aspects of contesting discourses to this end. Potential avenues are identified for improving supervision practice and for further research.
- Full Text:
- Date Issued: 2005