"Abject dictatorship of the flesh" : corporeality in the fiction of Patrick White
- Authors: Grogan, Bridget Meredith
- Date: 2013
- Subjects: White, Patrick, 1912-1990 -- Criticism and interpretation Human body in literature Dualism in literature Human body -- Social aspects Body image -- Social aspects Australian fiction -- 20th century -- History and criticism
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2166 , http://hdl.handle.net/10962/d1001554
- Description: Thesis embargoed for an indefinite period - full text not available
- Full Text: false
- Date Issued: 2013
- Authors: Grogan, Bridget Meredith
- Date: 2013
- Subjects: White, Patrick, 1912-1990 -- Criticism and interpretation Human body in literature Dualism in literature Human body -- Social aspects Body image -- Social aspects Australian fiction -- 20th century -- History and criticism
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2166 , http://hdl.handle.net/10962/d1001554
- Description: Thesis embargoed for an indefinite period - full text not available
- Full Text: false
- Date Issued: 2013
"Giving voice" to the bereaved : family grief and resilience after a child has died
- Authors: Scheepers, Lucas Johannes
- Date: 2013
- Subjects: Bereavement -- Psychological aspects , Death -- Psychological aspects , Loss (Psychology) , Grief
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9977 , http://hdl.handle.net/10948/d1021096
- Description: This study investigated family grief and resilience following a child’s death. Representing 23 families, 35 bereaved parents completed biographical questionnaires, the Family Hardiness Index, and the Family Attachment and Changeability Index 8. Significant positive correlations were found between family hardiness and family adaptation, and between parents’ age and family hardiness. Using grounded theory, interviews allowed for the formulation of categories including grief, continuing bonds, external support, religion, and family hardiness. The study reveals the need for exploring unique experiences of families bereaved by children’s deaths and identifies family hardiness as a potential resilience factor for this population
- Full Text:
- Date Issued: 2013
- Authors: Scheepers, Lucas Johannes
- Date: 2013
- Subjects: Bereavement -- Psychological aspects , Death -- Psychological aspects , Loss (Psychology) , Grief
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9977 , http://hdl.handle.net/10948/d1021096
- Description: This study investigated family grief and resilience following a child’s death. Representing 23 families, 35 bereaved parents completed biographical questionnaires, the Family Hardiness Index, and the Family Attachment and Changeability Index 8. Significant positive correlations were found between family hardiness and family adaptation, and between parents’ age and family hardiness. Using grounded theory, interviews allowed for the formulation of categories including grief, continuing bonds, external support, religion, and family hardiness. The study reveals the need for exploring unique experiences of families bereaved by children’s deaths and identifies family hardiness as a potential resilience factor for this population
- Full Text:
- Date Issued: 2013
"The wings of whipped butterflies" : trauma, silence and representation of the suffering child in selected contemporary African short fiction
- Authors: Njovane, Thandokazi
- Date: 2013
- Subjects: Children in literature Psychic trauma in literature Short stories, African (English) -- 21st century
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2253 , http://hdl.handle.net/10962/d1004214
- Description: This dissertation, which examines the literary representation of childhood trauma, is held together by three threads of inquiry. Firstly, I examine the stylistic devices through which three contemporary African writers – NoViolet Bulawayo, Uwem Akpan, and Mia Couto – engage with the subject of childhood trauma in five of their short stories: “Hitting Budapest”; “My Parents’ Bedroom” and “Fattening for Gabon”; and “The Day Mabata-bata Exploded” and “The Bird-Dreaming Baobab,” respectively. In each of these narratives, the use of ingén(u)s in the form of child narrators and/or focalisers instantiates a degree of structural irony, premised on the cognitive discrepancy between the protagonists’ perceptions and those of the implied reader. This structural irony then serves to underscore the reality that, though in a general sense the precise nature of traumatic experience cannot be directly communicated in language, this is exacerbated in the case of children, because children’s physical and psychological frameworks are underdeveloped. Consequently, children’s exposure to trauma and atrocity results in disruptions of both personal and communal notions of safety and security which are even more severe than those experienced by adults. Secondly, I analyse the political, cultural and economic factors which give rise to the traumatic incidents depicted in the stories, and the child characters’ interpretations and responses to these exigencies. Notions of subjectivity and intersubjectivity, identity and community, victimhood and survival, agency and disempowerment are discussed here in relation to the context of postcolonial Africa and the contemporary realities of chronic poverty, genocide, child-trafficking, the aftermath of civil war, and the legacies of colonialism and racism. Thirdly, this dissertation inspects the areas of congruence and divergence between trauma theory, literary scholarship on trauma narratives, and literary attempts to represent atrocity and trauma despite what is widely held to be the inadequacy of language – and therefore representation – to this task. There are certain differences between the three authors’ depictions of children’s experiences of trauma, despite the fact that the texts all grapple with the aporetic nature of trauma and the paradox of representing the unrepresentable. To this end, they utilise various strategies – temporal disjunctions and fragmentations, silences and lacunae, elements of the fantastical and surreal, magical realism, and instances of abjection and dissociation – to gesture towards the inexpressible, or that which is incommensurable with language. I argue that, ultimately, it is the endings of these stories which suggest the unrepresentable nature of trauma. Traumatic experience poses a challenge to representational conventions and, in its resistance, encourages a realisation that new ways of writing and speaking about trauma in the African continent, particularly with regards to children, are needed. , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2013
- Authors: Njovane, Thandokazi
- Date: 2013
- Subjects: Children in literature Psychic trauma in literature Short stories, African (English) -- 21st century
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2253 , http://hdl.handle.net/10962/d1004214
- Description: This dissertation, which examines the literary representation of childhood trauma, is held together by three threads of inquiry. Firstly, I examine the stylistic devices through which three contemporary African writers – NoViolet Bulawayo, Uwem Akpan, and Mia Couto – engage with the subject of childhood trauma in five of their short stories: “Hitting Budapest”; “My Parents’ Bedroom” and “Fattening for Gabon”; and “The Day Mabata-bata Exploded” and “The Bird-Dreaming Baobab,” respectively. In each of these narratives, the use of ingén(u)s in the form of child narrators and/or focalisers instantiates a degree of structural irony, premised on the cognitive discrepancy between the protagonists’ perceptions and those of the implied reader. This structural irony then serves to underscore the reality that, though in a general sense the precise nature of traumatic experience cannot be directly communicated in language, this is exacerbated in the case of children, because children’s physical and psychological frameworks are underdeveloped. Consequently, children’s exposure to trauma and atrocity results in disruptions of both personal and communal notions of safety and security which are even more severe than those experienced by adults. Secondly, I analyse the political, cultural and economic factors which give rise to the traumatic incidents depicted in the stories, and the child characters’ interpretations and responses to these exigencies. Notions of subjectivity and intersubjectivity, identity and community, victimhood and survival, agency and disempowerment are discussed here in relation to the context of postcolonial Africa and the contemporary realities of chronic poverty, genocide, child-trafficking, the aftermath of civil war, and the legacies of colonialism and racism. Thirdly, this dissertation inspects the areas of congruence and divergence between trauma theory, literary scholarship on trauma narratives, and literary attempts to represent atrocity and trauma despite what is widely held to be the inadequacy of language – and therefore representation – to this task. There are certain differences between the three authors’ depictions of children’s experiences of trauma, despite the fact that the texts all grapple with the aporetic nature of trauma and the paradox of representing the unrepresentable. To this end, they utilise various strategies – temporal disjunctions and fragmentations, silences and lacunae, elements of the fantastical and surreal, magical realism, and instances of abjection and dissociation – to gesture towards the inexpressible, or that which is incommensurable with language. I argue that, ultimately, it is the endings of these stories which suggest the unrepresentable nature of trauma. Traumatic experience poses a challenge to representational conventions and, in its resistance, encourages a realisation that new ways of writing and speaking about trauma in the African continent, particularly with regards to children, are needed. , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2013
"This horrid war" - the newly discovered diary of Captain James Primrose, 1851-53
- Authors: Jackson, Caroline
- Date: 2013
- Subjects: Primrose, James Maurice, 1819-1892 -- Diaries
- Type: Text
- Identifier: http://hdl.handle.net/10962/24703 , vital:23262 , MS 20 063 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: "This horrid war" - the newly discoverd diary of Captain James Primrose, 1851-53" - In: Quarterly bulletin of the National Library of South Africa, vol. 67, no. 2, April to June 2013.
- Full Text: false
- Date Issued: 2013
- Authors: Jackson, Caroline
- Date: 2013
- Subjects: Primrose, James Maurice, 1819-1892 -- Diaries
- Type: Text
- Identifier: http://hdl.handle.net/10962/24703 , vital:23262 , MS 20 063 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: "This horrid war" - the newly discoverd diary of Captain James Primrose, 1851-53" - In: Quarterly bulletin of the National Library of South Africa, vol. 67, no. 2, April to June 2013.
- Full Text: false
- Date Issued: 2013
'Leaders like children playing with a grenade?' : an analysis of how the Arab Spring was received in South Africa
- Authors: Gevers, Tristan Ronald
- Date: 2013
- Subjects: Arab Spring, 2010- Revolutions -- Theory Arab countries -- Social conditions -- 21st century South Africa -- Social condtions -- 21st century
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2846 , http://hdl.handle.net/10962/d1006031
- Description: When the Arab Spring took place, it took the world by surprise and sparked renewed interest in the idea of revolution. With differing opinions on what caused such a revolutionary wave throughout the North African and Middle Eastern region, many began looking at their own countries, and South Africa was no different. A debate was sparked in South Africa, as to whether there would be a revolution or not. What I originally set out to accomplish is to find out which side of the debate would be correct through the philosophical context of revolutionary theory. Initially, we attempted to define and consider the history of revolutionary theory. We found that revolutionary theory has gone through four generation and that even finding a theoretically informed definition is difficult. Following this, we considered some social-psychological theories of revolution as well as theories of moral indignation. We found that these theories were incredibly informative and that they provide some insight into the reasoning for revolutionary fear in the South African debate. Through the use of opinion pieces, we then considered the South African debate, and – using socialpsychological theories and the theories of moral indignation - found that both sides of the argument had valuable points, however, they often lacked some foresight. With tentative agreement, we found that the side arguing that there would a revolution in South Africa had a more valuable argument, despite its limitations. However, far more research is required before one can – with more accuracy – predict a revolutionary occurrence in such a way as was done in South Africa.
- Full Text:
- Date Issued: 2013
- Authors: Gevers, Tristan Ronald
- Date: 2013
- Subjects: Arab Spring, 2010- Revolutions -- Theory Arab countries -- Social conditions -- 21st century South Africa -- Social condtions -- 21st century
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2846 , http://hdl.handle.net/10962/d1006031
- Description: When the Arab Spring took place, it took the world by surprise and sparked renewed interest in the idea of revolution. With differing opinions on what caused such a revolutionary wave throughout the North African and Middle Eastern region, many began looking at their own countries, and South Africa was no different. A debate was sparked in South Africa, as to whether there would be a revolution or not. What I originally set out to accomplish is to find out which side of the debate would be correct through the philosophical context of revolutionary theory. Initially, we attempted to define and consider the history of revolutionary theory. We found that revolutionary theory has gone through four generation and that even finding a theoretically informed definition is difficult. Following this, we considered some social-psychological theories of revolution as well as theories of moral indignation. We found that these theories were incredibly informative and that they provide some insight into the reasoning for revolutionary fear in the South African debate. Through the use of opinion pieces, we then considered the South African debate, and – using socialpsychological theories and the theories of moral indignation - found that both sides of the argument had valuable points, however, they often lacked some foresight. With tentative agreement, we found that the side arguing that there would a revolution in South Africa had a more valuable argument, despite its limitations. However, far more research is required before one can – with more accuracy – predict a revolutionary occurrence in such a way as was done in South Africa.
- Full Text:
- Date Issued: 2013
'The Area of a Triangle is 1800C’: an analysis of Learners' Idiosyncratic Geometry Responses through the Lenses of Vygotsky's Theory of Concept Formation
- Mhlolo, Michael K, Schäfer, Marc
- Authors: Mhlolo, Michael K , Schäfer, Marc
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/141127 , vital:37946 , DOI: 10.1080/10288457.2013.826973
- Description: In this paper, we focus specifically on Vygotsky's theory of concept formation to gain initial insights into seemingly garbled and incoherent connections we observed in learners' responses to a geometry task. While acknowledging research that is supportive of the van Hiele model as being useful when analysing concept formation in geometry, in this paper we use empirical evidence to argue that today's geometry requires learners to reason with many tools which the van Hiele model does not seem to accommodate. Working with 470 written responses of 12–14-year-old learners to a geometry task, we then explored the potential of Vygotsky's theory of concept formation as an alternative framework. We conclude by discussing the paper's contribution both to theory and to classroom practice.
- Full Text:
- Date Issued: 2013
- Authors: Mhlolo, Michael K , Schäfer, Marc
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/141127 , vital:37946 , DOI: 10.1080/10288457.2013.826973
- Description: In this paper, we focus specifically on Vygotsky's theory of concept formation to gain initial insights into seemingly garbled and incoherent connections we observed in learners' responses to a geometry task. While acknowledging research that is supportive of the van Hiele model as being useful when analysing concept formation in geometry, in this paper we use empirical evidence to argue that today's geometry requires learners to reason with many tools which the van Hiele model does not seem to accommodate. Working with 470 written responses of 12–14-year-old learners to a geometry task, we then explored the potential of Vygotsky's theory of concept formation as an alternative framework. We conclude by discussing the paper's contribution both to theory and to classroom practice.
- Full Text:
- Date Issued: 2013
13C pulse-chase labeling comparative assessment of the active methanogenic archaeal community composition in the transgenic and nontransgenic parental rice rhizospheres
- Zhu, Weijing, Lu, Haohao, Hill, Jaclyn M, Wang, Hailong, Wu, Weixiang
- Authors: Zhu, Weijing , Lu, Haohao , Hill, Jaclyn M , Wang, Hailong , Wu, Weixiang
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/122993 , vital:35389 , https://doi.org/10.1111/1574-6941.12261
- Description: Rhabdosargus holubi (Steindachner, 1881) is a small (maximum size = 450 mm total length; Heemstra and Heemstra 2004) sparid that is distributed along the south-east coast of Africa from St Helena Bay, South Africa, to Maputo, Mozambique (Götz and Cowley 2013). Spawning occurs in the nearshore marine environment primarily during winter, specifically May–August in KwaZulu-Natal (KZN) (Wallace 1975) and July–February in the South-Eastern Cape (Whitfield 1998). Individuals reach 50% sexual maturity at approximately 150 mm standard length (SL) in the Eastern Cape (Whitfield 1998). The early life stages are transported by the south-westward-flowing Agulhas Current, and recruit as post-flexion larvae and early juveniles into estuaries during late winter and early summer (Blaber 1974). The warm temperatures and high nutrient levels in estuaries favour fast growth (Blaber 1973a), and fish spend their first year of life in these environments, migrating back out to sea after reaching approximately 120 mm SL. Some individuals remain trapped in closed estuaries, where they may reach sizes greater than 200 mm SL (James et al. 2007a). Rhabdosargus holubi is the dominant estuarine-dependent marine teleost species recorded in permanently open and temporarily open/closed estuaries in the warm-temperate region, which spans the south, south-east and east coast of South Africa (Harrison 2005). The species is also an important component of the linefishery in many SouthAfrican estuaries (10–15.6% by number) (Pradervand and Baird 2002), particularly in Eastern Cape estuaries (Cowley et al. 2003). These figures underestimate the presence of R. holubi, as most individuals making use of estuaries are young, feeding predominately on filamentous macroalgae and diatom flora, and are generally too small to be caught with hook and line (De Wet and Marais 1990). James et al. (2007b) showed that R. holubi made up 34–92% of the annual seine-net catch in the East Kleinemonde Estuary. Rhabdosargus holubi is also important in the KZN shorebased linefishery, representing 4.6% of the total landed catch (Dunlop and Mann 2012)More and more investigations indicate that genetic modification has no significant or persistent effects on microbial community composition in the rice rhizosphere. Very few studies, however, have focused on its impact on functional microorganisms. This study completed a 13C-CO2 pulse-chase labeling experiment comparing the potential effects of cry1Ab gene transformation on 13C tissue distribution and rhizosphere methanogenic archaeal community composition with its parental rice variety (Ck) and a distant parental rice variety (Dp). Results showed that 13C partitioning in aboveground biomass (mainly in stems) and roots of Dp was significantly lower than that of Ck. However, there were no significant differences in 13C partitioning between the Bt transgenic rice line (Bt) and Ck. RNA-stable isotope probing combined with clone library analyses inferred that the group Methanosaetaceae was the predominant methanogenic Archaea in all three rice rhizospheres. The active methanogenic archaeal community in the Bt rhizosphere was dominated by Methanosarcinaceae, Methanosaetaceae, and Methanomicrobiaceae, while there were only two main methanogenic clusters (Methanosaetaceae and Methanomicrobiaceae) in the Ck and Dp rhizospheres. These results indicate that the insertion of cry1Ab gene into the rice genome has the potential to result in the modification of methanogenic community composition in its rhizosphere.
- Full Text:
- Date Issued: 2013
- Authors: Zhu, Weijing , Lu, Haohao , Hill, Jaclyn M , Wang, Hailong , Wu, Weixiang
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/122993 , vital:35389 , https://doi.org/10.1111/1574-6941.12261
- Description: Rhabdosargus holubi (Steindachner, 1881) is a small (maximum size = 450 mm total length; Heemstra and Heemstra 2004) sparid that is distributed along the south-east coast of Africa from St Helena Bay, South Africa, to Maputo, Mozambique (Götz and Cowley 2013). Spawning occurs in the nearshore marine environment primarily during winter, specifically May–August in KwaZulu-Natal (KZN) (Wallace 1975) and July–February in the South-Eastern Cape (Whitfield 1998). Individuals reach 50% sexual maturity at approximately 150 mm standard length (SL) in the Eastern Cape (Whitfield 1998). The early life stages are transported by the south-westward-flowing Agulhas Current, and recruit as post-flexion larvae and early juveniles into estuaries during late winter and early summer (Blaber 1974). The warm temperatures and high nutrient levels in estuaries favour fast growth (Blaber 1973a), and fish spend their first year of life in these environments, migrating back out to sea after reaching approximately 120 mm SL. Some individuals remain trapped in closed estuaries, where they may reach sizes greater than 200 mm SL (James et al. 2007a). Rhabdosargus holubi is the dominant estuarine-dependent marine teleost species recorded in permanently open and temporarily open/closed estuaries in the warm-temperate region, which spans the south, south-east and east coast of South Africa (Harrison 2005). The species is also an important component of the linefishery in many SouthAfrican estuaries (10–15.6% by number) (Pradervand and Baird 2002), particularly in Eastern Cape estuaries (Cowley et al. 2003). These figures underestimate the presence of R. holubi, as most individuals making use of estuaries are young, feeding predominately on filamentous macroalgae and diatom flora, and are generally too small to be caught with hook and line (De Wet and Marais 1990). James et al. (2007b) showed that R. holubi made up 34–92% of the annual seine-net catch in the East Kleinemonde Estuary. Rhabdosargus holubi is also important in the KZN shorebased linefishery, representing 4.6% of the total landed catch (Dunlop and Mann 2012)More and more investigations indicate that genetic modification has no significant or persistent effects on microbial community composition in the rice rhizosphere. Very few studies, however, have focused on its impact on functional microorganisms. This study completed a 13C-CO2 pulse-chase labeling experiment comparing the potential effects of cry1Ab gene transformation on 13C tissue distribution and rhizosphere methanogenic archaeal community composition with its parental rice variety (Ck) and a distant parental rice variety (Dp). Results showed that 13C partitioning in aboveground biomass (mainly in stems) and roots of Dp was significantly lower than that of Ck. However, there were no significant differences in 13C partitioning between the Bt transgenic rice line (Bt) and Ck. RNA-stable isotope probing combined with clone library analyses inferred that the group Methanosaetaceae was the predominant methanogenic Archaea in all three rice rhizospheres. The active methanogenic archaeal community in the Bt rhizosphere was dominated by Methanosarcinaceae, Methanosaetaceae, and Methanomicrobiaceae, while there were only two main methanogenic clusters (Methanosaetaceae and Methanomicrobiaceae) in the Ck and Dp rhizospheres. These results indicate that the insertion of cry1Ab gene into the rice genome has the potential to result in the modification of methanogenic community composition in its rhizosphere.
- Full Text:
- Date Issued: 2013
53 stitches : sustainability, ecology and social engagement in contemporary art
- Authors: Salton, Bronwen Lauren
- Date: 2013
- Subjects: Crocheting Community development -- South Africa Ecology in art
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2390 , http://hdl.handle.net/10962/d1001580
- Description: Through an exploration of both the sculptural and socially-engaged art practices undertaken in creating my Master of Fine Art exhibition, 53 Stitches, I unpack some of the possibilities pertaining to the practice of sustainability, ecology and social engagement in contemporary art. This thesis explores the history and concepts of sustainable development and what the implications are of the far-reaching global consideration of sustainability for contemporary art production. Looking at the writings of Felix Guattari’s (2000 [1989]) and Suzi Gablik’s (1992) on the effects of the economic model of capitalism on our environmental, social and mental ecologies, I discuss the necessary paradigm shift of the artists’ identity from the ‘individual self’ towards the ‘relational self’, affirming our interdependence upon our social and natural environments. With reference to the writings of Maja and Reuben Fowkes (2008), I explore the principles of sustainability in contemporary art and discuss the notion of ‘sustainability of form’ through insight into dematerialisation, recycling and the prospect of artists now becoming knowledge producers/facilitators. This is supportive of my personal exploration and experimentation with recyclable materials as a creative medium, used as a means of knowledge and skills facilitation in socially-engaged arts practice and the process of art-making as research. I refer to the sculptural and ‘painterly’ constructions of Sofi Zezmer and Mbongeni Buthelezi, respectively, as a means to elucidate a practical contextualisation of my practical work, particularly with regard to the use of plastic as a constructive medium. Looking at the works of Linda Weintraub (2006), Marnie Badham (2010) and Miwon Kwon (2002), I expand on the theoretical discourse pertaining to sociallyengaged art practices, and elucidate the reconfiguration of the role of the artist towards now becoming a cultural service administrator, organiser and knowledge facilitator. With reference to Arjen Wals and Johnson et al., I further discuss the role of education in sustainability and explore the necessary reconciliation between university institutions and the social and environmental context in which they are located, in the form of place-based capacity building and service learning. I explore within this thesis the concepts and processbased research of my own sculptures
- Full Text:
- Date Issued: 2013
- Authors: Salton, Bronwen Lauren
- Date: 2013
- Subjects: Crocheting Community development -- South Africa Ecology in art
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2390 , http://hdl.handle.net/10962/d1001580
- Description: Through an exploration of both the sculptural and socially-engaged art practices undertaken in creating my Master of Fine Art exhibition, 53 Stitches, I unpack some of the possibilities pertaining to the practice of sustainability, ecology and social engagement in contemporary art. This thesis explores the history and concepts of sustainable development and what the implications are of the far-reaching global consideration of sustainability for contemporary art production. Looking at the writings of Felix Guattari’s (2000 [1989]) and Suzi Gablik’s (1992) on the effects of the economic model of capitalism on our environmental, social and mental ecologies, I discuss the necessary paradigm shift of the artists’ identity from the ‘individual self’ towards the ‘relational self’, affirming our interdependence upon our social and natural environments. With reference to the writings of Maja and Reuben Fowkes (2008), I explore the principles of sustainability in contemporary art and discuss the notion of ‘sustainability of form’ through insight into dematerialisation, recycling and the prospect of artists now becoming knowledge producers/facilitators. This is supportive of my personal exploration and experimentation with recyclable materials as a creative medium, used as a means of knowledge and skills facilitation in socially-engaged arts practice and the process of art-making as research. I refer to the sculptural and ‘painterly’ constructions of Sofi Zezmer and Mbongeni Buthelezi, respectively, as a means to elucidate a practical contextualisation of my practical work, particularly with regard to the use of plastic as a constructive medium. Looking at the works of Linda Weintraub (2006), Marnie Badham (2010) and Miwon Kwon (2002), I expand on the theoretical discourse pertaining to sociallyengaged art practices, and elucidate the reconfiguration of the role of the artist towards now becoming a cultural service administrator, organiser and knowledge facilitator. With reference to Arjen Wals and Johnson et al., I further discuss the role of education in sustainability and explore the necessary reconciliation between university institutions and the social and environmental context in which they are located, in the form of place-based capacity building and service learning. I explore within this thesis the concepts and processbased research of my own sculptures
- Full Text:
- Date Issued: 2013
A baseline study of youth identity, the media and the public sphere in South Africa:
- Malila, Vanessa, Duncan, Jane, Costera Meijer, Irene, Drok, Nico, Garman, Anthea, Strelitz, Larry N, Steenveld, Lynette N, Bosch, Tanja, Ndlovu, Musa
- Authors: Malila, Vanessa , Duncan, Jane , Costera Meijer, Irene , Drok, Nico , Garman, Anthea , Strelitz, Larry N , Steenveld, Lynette N , Bosch, Tanja , Ndlovu, Musa
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159780 , vital:40343 , https://research.vu.nl/ws/portalfiles/portal/3635364/Baseline+study+single+column+(1).pdf
- Description: The project on youth identity, the media and the public sphere in South Africa was led by Prof Jane Duncan, Highway Africa Chair of Media and Information Society, at Rhodes University in South Africa. The research project was funded by the South Africa Netherlands Research Programme on Alternatives in Development (SANPAD), and partnered in the Netherlands with Prof Irene Costera Meijer (of VU University of Amsterdam) and Prof Nico Drok (of Windesheim University).
- Full Text:
- Date Issued: 2013
- Authors: Malila, Vanessa , Duncan, Jane , Costera Meijer, Irene , Drok, Nico , Garman, Anthea , Strelitz, Larry N , Steenveld, Lynette N , Bosch, Tanja , Ndlovu, Musa
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/159780 , vital:40343 , https://research.vu.nl/ws/portalfiles/portal/3635364/Baseline+study+single+column+(1).pdf
- Description: The project on youth identity, the media and the public sphere in South Africa was led by Prof Jane Duncan, Highway Africa Chair of Media and Information Society, at Rhodes University in South Africa. The research project was funded by the South Africa Netherlands Research Programme on Alternatives in Development (SANPAD), and partnered in the Netherlands with Prof Irene Costera Meijer (of VU University of Amsterdam) and Prof Nico Drok (of Windesheim University).
- Full Text:
- Date Issued: 2013
A capability approach: Its potential for transformative education research focusing on education for sustainable development and gender issues in science teacher education
- Authors: Chikunda, Charles
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/387120 , vital:68208 , xlink:href="https://www.ajol.info/index.php/sajee/article/view/122266"
- Description: In this article, I use the capability approach to explore the role that the science, mathematics and technical subjects (SMTs) teacher education curriculum can play as a ‘gender conversion factor’. This comes amidst evidence that a major hindrance to the participation of girls in these disciplines is a lack of gender responsiveness in the pedagogy applied in schools. Seven teacher educators, who were purposively sampled at a Technical Teachers’ College in Zimbabwe, were the research participants. I adopted a case study design in which I used in-depth interviews, focus-group discussions and document analysis to generate data. Data was analysed deductively using predetermined themes based on an analytical tool anchored on Sen’s two, but quite distinct, aspects of freedom, that is, the opportunity aspect and the process aspect of freedom. The findings reveal that there is a limited awareness of gender issues among teacher educators, and that these issues are not being transformed into curriculum practice. All in all, it is evident that curriculum practices of SMTs teacher educators are riddled with gender blindness and so trainee teachers graduate from college without the necessary agency to deal with personal, social and environmental conversion factors that can play a role in girls converting the curriculum into functionings (beings and doings) and wider freedoms and valued beings and doings (capabilities).
- Full Text:
- Date Issued: 2013
- Authors: Chikunda, Charles
- Date: 2013
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/387120 , vital:68208 , xlink:href="https://www.ajol.info/index.php/sajee/article/view/122266"
- Description: In this article, I use the capability approach to explore the role that the science, mathematics and technical subjects (SMTs) teacher education curriculum can play as a ‘gender conversion factor’. This comes amidst evidence that a major hindrance to the participation of girls in these disciplines is a lack of gender responsiveness in the pedagogy applied in schools. Seven teacher educators, who were purposively sampled at a Technical Teachers’ College in Zimbabwe, were the research participants. I adopted a case study design in which I used in-depth interviews, focus-group discussions and document analysis to generate data. Data was analysed deductively using predetermined themes based on an analytical tool anchored on Sen’s two, but quite distinct, aspects of freedom, that is, the opportunity aspect and the process aspect of freedom. The findings reveal that there is a limited awareness of gender issues among teacher educators, and that these issues are not being transformed into curriculum practice. All in all, it is evident that curriculum practices of SMTs teacher educators are riddled with gender blindness and so trainee teachers graduate from college without the necessary agency to deal with personal, social and environmental conversion factors that can play a role in girls converting the curriculum into functionings (beings and doings) and wider freedoms and valued beings and doings (capabilities).
- Full Text:
- Date Issued: 2013
A case study of the readability of two grade 4 natural sciences textbooks currently used in South African schools
- Authors: Sibanda, Lucy
- Date: 2013
- Subjects: Science -- Study and teaching (Primary) -- Textbooks Reading comprehension -- Study and teaching (Primary) -- South Africa English language -- Textbooks for foreign speakers English language -- Study and teaching (Primary) -- Foreign speakers Education, Primary -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1892 , http://hdl.handle.net/10962/d1006083
- Description: This thesis examines the readability of two grade 4 Natural Sciences textbooks currently used in South African schools. Being important sources of classroom input, particularly in grade 4 where learners are reading to learn, textbooks should be readable. That the Natural Sciences subject is only introduced in grade 4 makes the assessment of Natural Sciences textbooks at this level significant. The goal of this research therefore, is to assess the readability of two grade 4 Natural Sciences textbooks and their understandability by learners who speak English as an additional language. The goal of assessing the Natural Sciences textbooks is achieved by the use of cloze and traditional comprehension tests, classic readability formulae, textual analysis and teacher interviews. Cloze and traditional comprehension tests are used to test learners’ understanding of the textbooks and classic readability formulae are meant to assess the grade levels of the textbooks. The tests gauge learner understandability while readability formulae establish text readability. Textual analysis allows the assessment of text readability on the basis of more factors than those accommodated by readability formulae. The textual analysis also helps to identify the readability factors supporting or impeding readability. Teacher interviews are conducted to better understand the teachers’ perceptions on the readability of the Natural Sciences textbooks. The major findings of the study are that the two Natural Sciences textbooks used in the study are generally above the reading level of the intended readers, grade 4 learners and that the participating learners do not understand these textbooks. The challenges with the readability of the textbooks stem mainly from the vocabulary and concepts used in the textbooks which are not well explained.
- Full Text:
- Date Issued: 2013
- Authors: Sibanda, Lucy
- Date: 2013
- Subjects: Science -- Study and teaching (Primary) -- Textbooks Reading comprehension -- Study and teaching (Primary) -- South Africa English language -- Textbooks for foreign speakers English language -- Study and teaching (Primary) -- Foreign speakers Education, Primary -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1892 , http://hdl.handle.net/10962/d1006083
- Description: This thesis examines the readability of two grade 4 Natural Sciences textbooks currently used in South African schools. Being important sources of classroom input, particularly in grade 4 where learners are reading to learn, textbooks should be readable. That the Natural Sciences subject is only introduced in grade 4 makes the assessment of Natural Sciences textbooks at this level significant. The goal of this research therefore, is to assess the readability of two grade 4 Natural Sciences textbooks and their understandability by learners who speak English as an additional language. The goal of assessing the Natural Sciences textbooks is achieved by the use of cloze and traditional comprehension tests, classic readability formulae, textual analysis and teacher interviews. Cloze and traditional comprehension tests are used to test learners’ understanding of the textbooks and classic readability formulae are meant to assess the grade levels of the textbooks. The tests gauge learner understandability while readability formulae establish text readability. Textual analysis allows the assessment of text readability on the basis of more factors than those accommodated by readability formulae. The textual analysis also helps to identify the readability factors supporting or impeding readability. Teacher interviews are conducted to better understand the teachers’ perceptions on the readability of the Natural Sciences textbooks. The major findings of the study are that the two Natural Sciences textbooks used in the study are generally above the reading level of the intended readers, grade 4 learners and that the participating learners do not understand these textbooks. The challenges with the readability of the textbooks stem mainly from the vocabulary and concepts used in the textbooks which are not well explained.
- Full Text:
- Date Issued: 2013
A case study of the research careers of women academics: constraints and enablements
- Authors: Obers, Nöelle Marie Thérèse
- Date: 2013
- Subjects: Career success , Research , Women college teachers , Women in higher education , Sex discrimination in higher education
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1313 , http://hdl.handle.net/10962/d1001575
- Description: The purpose of this research is to investigate constraints that women academics experience in their research careers and how enablements, particularly in the form of mentoring relationships and support structures, can impact on their research career development in the context of the new knowledge economy of Higher Education. The research was a case study of one South African Institution and used a mixed method approach. Social realism underpinned the research. Data was collected and analysed within the spheres of structure, culture and agency, using critical discourse analysis, interpretation and abstraction strategies. I investigated how women researchers understand and experience career success and what they perceive and experience as enablements and constraints to their research careers. Institutional support structures and cultures were examined with a focus on the role of the Head of Department. I explored mentoring and questioned whether the agency of women academics is empowered by mentoring and supportive structures to overcome constraints to their research productivity and the development of their careers. Gender-based issues of inequity, low self-esteem and accrual of social capital appear to be the underlying factors affecting how women perform in the research arena and advance within the institution. It was found that mentoring is a generative mechanism that has a favourable impact on women academics as it enables them to overcome obstacles to research productivity and career advancement.
- Full Text:
- Date Issued: 2013
- Authors: Obers, Nöelle Marie Thérèse
- Date: 2013
- Subjects: Career success , Research , Women college teachers , Women in higher education , Sex discrimination in higher education
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1313 , http://hdl.handle.net/10962/d1001575
- Description: The purpose of this research is to investigate constraints that women academics experience in their research careers and how enablements, particularly in the form of mentoring relationships and support structures, can impact on their research career development in the context of the new knowledge economy of Higher Education. The research was a case study of one South African Institution and used a mixed method approach. Social realism underpinned the research. Data was collected and analysed within the spheres of structure, culture and agency, using critical discourse analysis, interpretation and abstraction strategies. I investigated how women researchers understand and experience career success and what they perceive and experience as enablements and constraints to their research careers. Institutional support structures and cultures were examined with a focus on the role of the Head of Department. I explored mentoring and questioned whether the agency of women academics is empowered by mentoring and supportive structures to overcome constraints to their research productivity and the development of their careers. Gender-based issues of inequity, low self-esteem and accrual of social capital appear to be the underlying factors affecting how women perform in the research arena and advance within the institution. It was found that mentoring is a generative mechanism that has a favourable impact on women academics as it enables them to overcome obstacles to research productivity and career advancement.
- Full Text:
- Date Issued: 2013
A central enrichment-based comparison of two alternative methods of generating transcription factor binding motifs from protein binding microarray data
- Authors: Mahaye, Ntombikayise
- Date: 2013 , 2013-03-13
- Subjects: Transcription factors , Bioinformatics , Protein binding , Protein microarrays , Cell lines
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3890 , http://hdl.handle.net/10962/d1003049 , Transcription factors , Bioinformatics , Protein binding , Protein microarrays , Cell lines
- Description: Characterising transcription factor binding sites (TFBS) is an important problem in bioinformatics, since predicting binding sites has many applications such as predicting gene regulation. ChIP-seq is a powerful in vivo method for generating genome-wide putative binding regions for transcription factors (TFs). CentriMo is an algorithm that measures central enrichment of a motif and has previously been used as motif enrichment analysis (MEA) tool. CentriMo uses the fact that ChIP-seq peak calling methods are likely to be biased towards the centre of the putative binding region, at least in cases where there is direct binding. CentriMo calculates a binomial p-value representing central enrichment, based on the central bias of the binding site with the highest likelihood ratio. In cases where binding is indirect or involves cofactors, a more complex distribution of preferred binding sites may occur but, in many cases, a low CentriMo p-value and low width of maximum enrichment (about 100bp) are strong evidence that the motif in question is the true binding motif. Several other MEA tools have been developed, but they do not consider motif central enrichment. The study investigates the claim made by Zhao and Stormo (2011) that they have identified a simpler method than that used to derive the UniPROBE motif database for creating motifs from protein binding microarray (PBM) data, which they call BEEML-PBM (Binding Energy Estimation by Maximum Likelihood-PBM). To accomplish this, CentriMo is employed on 13 motifs from both motif databases. The results indicate that there is no conclusive difference in the quality of motifs from the original PBM and BEEML-PBM approaches. CentriMo provides an understanding of the mechanisms by which TFs bind to DNA. Out of 13 TFs for which ChIP-seq data is used, BEEML-PBM reports five better motifs and twice it has not had any central enrichment when the best PBM motif does. PBM approach finds seven motifs with better central enrichment. On the other hand, across all variations, the number of examples where PBM is better is not high enough to conclude that it is overall the better approach. Some TFs bind directly to DNA, some indirect or in combination with other TFs. Some of the predicted mechanisms are supported by literature evidence. This study further revealed that the binding specificity of a TF is different in different cell types and development stages. A TF is up-regulated in a cell line where it performs its biological function. The discovery of cell line differences, which has not been done before in any CentriMo study, is interesting and provides reasons to study this further.
- Full Text:
- Date Issued: 2013
- Authors: Mahaye, Ntombikayise
- Date: 2013 , 2013-03-13
- Subjects: Transcription factors , Bioinformatics , Protein binding , Protein microarrays , Cell lines
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3890 , http://hdl.handle.net/10962/d1003049 , Transcription factors , Bioinformatics , Protein binding , Protein microarrays , Cell lines
- Description: Characterising transcription factor binding sites (TFBS) is an important problem in bioinformatics, since predicting binding sites has many applications such as predicting gene regulation. ChIP-seq is a powerful in vivo method for generating genome-wide putative binding regions for transcription factors (TFs). CentriMo is an algorithm that measures central enrichment of a motif and has previously been used as motif enrichment analysis (MEA) tool. CentriMo uses the fact that ChIP-seq peak calling methods are likely to be biased towards the centre of the putative binding region, at least in cases where there is direct binding. CentriMo calculates a binomial p-value representing central enrichment, based on the central bias of the binding site with the highest likelihood ratio. In cases where binding is indirect or involves cofactors, a more complex distribution of preferred binding sites may occur but, in many cases, a low CentriMo p-value and low width of maximum enrichment (about 100bp) are strong evidence that the motif in question is the true binding motif. Several other MEA tools have been developed, but they do not consider motif central enrichment. The study investigates the claim made by Zhao and Stormo (2011) that they have identified a simpler method than that used to derive the UniPROBE motif database for creating motifs from protein binding microarray (PBM) data, which they call BEEML-PBM (Binding Energy Estimation by Maximum Likelihood-PBM). To accomplish this, CentriMo is employed on 13 motifs from both motif databases. The results indicate that there is no conclusive difference in the quality of motifs from the original PBM and BEEML-PBM approaches. CentriMo provides an understanding of the mechanisms by which TFs bind to DNA. Out of 13 TFs for which ChIP-seq data is used, BEEML-PBM reports five better motifs and twice it has not had any central enrichment when the best PBM motif does. PBM approach finds seven motifs with better central enrichment. On the other hand, across all variations, the number of examples where PBM is better is not high enough to conclude that it is overall the better approach. Some TFs bind directly to DNA, some indirect or in combination with other TFs. Some of the predicted mechanisms are supported by literature evidence. This study further revealed that the binding specificity of a TF is different in different cell types and development stages. A TF is up-regulated in a cell line where it performs its biological function. The discovery of cell line differences, which has not been done before in any CentriMo study, is interesting and provides reasons to study this further.
- Full Text:
- Date Issued: 2013
A chronic care coordination model for HIV-positive children requiring antiretroviral therapy
- Authors: Williams, Margaret
- Date: 2013
- Subjects: HIV-positive children -- Care -- South Africa , HIV-positive persons -- Care -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10062 , http://hdl.handle.net/10948/d1020346
- Description: The human immunodeficiency virus / acquired immune deficiency syndrome pandemic (HIV/AIDS) continues to increase in prevalence worldwide, particularly in South Africa. There is a concurrent and distinct increase in the prevalence of HIV/AIDS and HIV-related diseases in the paediatric population in South Africa, particularly those using public sector health services, with a corresponding increase in morbidity and mortality rates (Abdool Karim & Abdool Karim, 2010:363), which impacts greatly on paediatric healthcare services. Adding to this, the provision of paediatric antiretroviral care has numerous stumbling blocks, not least of which is lack of decentralisation of facilities to provide treatment. There is the additional shortage of staff, which includes staff that are comfortable dealing with children, lack of training programmes on the provision of antiretroviral therapy to children, and minimal on-site mentorship of staff regarding HIV/AIDS disease in children. This lack of capacity in the healthcare system means that not all of those who require treatment will be able to access it, and this is particularly pertinent to paediatric patients (Meyers et al., 2007:198). Therefore the purpose of this research was to develop a nursing model that would assist healthcare professionals, in particular professional nurses, to optimise the comprehensive treatment, care and support for HIV-positive children who require antiretroviral therapy at PHC clinics. To achieve the purpose of this study, a theory-generating design based on a qualitative, explorative, descriptive and contextual approach was implemented by the researcher to gain an understanding of how the healthcare professionals and parents/caregivers of HIV-positive children experienced the comprehensive treatment, care and support provided at primary healthcare clinics. The information obtained was used to develop a chronic care coordination model for the optimisation of comprehensive treatment, care and support for HIV-positive children requiring antiretroviral therapy. The study design comprised the following four steps: Step One of the research design focused on the identification, classification and definition of the major concepts of the study. This involved describing and selecting the research population and the sampling process prior to conducting the field work which comprised in-depth interviews with two groups of participants, namely healthcare professionals and parents/caregivers who accompany their HIV-positive children to PHC clinics in order to receive antiretroviral therapy. Step Two of the research design focused on the development of relationship statements in order to bring clarity and direction to the understanding of the phenomenon of interest. Step Three of the design concentrated on the development and description of the chronic care coordination model for optimising comprehensive treatment, care and support for HIV-positive children who require antiretroviral therapy in order to ensure a well-managed child on ART. A visual representation of the structure of the model for chronic care coordination was given and described as well as a detailed description of the process of the model. Step Four was the last step of the research design and its focus was the development of guidelines for the operationalisation of the model for chronic care coordination for the optimisation of comprehensive treatment, care and support for HIV-positive children requiring antiretroviral therapy at PHC clinics. Guidelines and operational implications for each of the five sequential steps of the model were developed. The evaluation criteria of Chinn & Kramer (2008:237‒248) were used to evaluate the model. It is therefore concluded that the researcher succeeded in achieving the purpose for this study because a chronic care coordination model that is understandable, clear, simple, applicable and significant to nursing practice has been developed for use by healthcare professionals, particularly professional nurses, in order to optimise the comprehensive treatment, care and support for HIV-positive children requiring antiretroviral therapy at primary healthcare clinics.
- Full Text:
- Date Issued: 2013
- Authors: Williams, Margaret
- Date: 2013
- Subjects: HIV-positive children -- Care -- South Africa , HIV-positive persons -- Care -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10062 , http://hdl.handle.net/10948/d1020346
- Description: The human immunodeficiency virus / acquired immune deficiency syndrome pandemic (HIV/AIDS) continues to increase in prevalence worldwide, particularly in South Africa. There is a concurrent and distinct increase in the prevalence of HIV/AIDS and HIV-related diseases in the paediatric population in South Africa, particularly those using public sector health services, with a corresponding increase in morbidity and mortality rates (Abdool Karim & Abdool Karim, 2010:363), which impacts greatly on paediatric healthcare services. Adding to this, the provision of paediatric antiretroviral care has numerous stumbling blocks, not least of which is lack of decentralisation of facilities to provide treatment. There is the additional shortage of staff, which includes staff that are comfortable dealing with children, lack of training programmes on the provision of antiretroviral therapy to children, and minimal on-site mentorship of staff regarding HIV/AIDS disease in children. This lack of capacity in the healthcare system means that not all of those who require treatment will be able to access it, and this is particularly pertinent to paediatric patients (Meyers et al., 2007:198). Therefore the purpose of this research was to develop a nursing model that would assist healthcare professionals, in particular professional nurses, to optimise the comprehensive treatment, care and support for HIV-positive children who require antiretroviral therapy at PHC clinics. To achieve the purpose of this study, a theory-generating design based on a qualitative, explorative, descriptive and contextual approach was implemented by the researcher to gain an understanding of how the healthcare professionals and parents/caregivers of HIV-positive children experienced the comprehensive treatment, care and support provided at primary healthcare clinics. The information obtained was used to develop a chronic care coordination model for the optimisation of comprehensive treatment, care and support for HIV-positive children requiring antiretroviral therapy. The study design comprised the following four steps: Step One of the research design focused on the identification, classification and definition of the major concepts of the study. This involved describing and selecting the research population and the sampling process prior to conducting the field work which comprised in-depth interviews with two groups of participants, namely healthcare professionals and parents/caregivers who accompany their HIV-positive children to PHC clinics in order to receive antiretroviral therapy. Step Two of the research design focused on the development of relationship statements in order to bring clarity and direction to the understanding of the phenomenon of interest. Step Three of the design concentrated on the development and description of the chronic care coordination model for optimising comprehensive treatment, care and support for HIV-positive children who require antiretroviral therapy in order to ensure a well-managed child on ART. A visual representation of the structure of the model for chronic care coordination was given and described as well as a detailed description of the process of the model. Step Four was the last step of the research design and its focus was the development of guidelines for the operationalisation of the model for chronic care coordination for the optimisation of comprehensive treatment, care and support for HIV-positive children requiring antiretroviral therapy at PHC clinics. Guidelines and operational implications for each of the five sequential steps of the model were developed. The evaluation criteria of Chinn & Kramer (2008:237‒248) were used to evaluate the model. It is therefore concluded that the researcher succeeded in achieving the purpose for this study because a chronic care coordination model that is understandable, clear, simple, applicable and significant to nursing practice has been developed for use by healthcare professionals, particularly professional nurses, in order to optimise the comprehensive treatment, care and support for HIV-positive children requiring antiretroviral therapy at primary healthcare clinics.
- Full Text:
- Date Issued: 2013
A comparative study of the comfort related properties of commercial apparel fabrics containing natural and man-made fibres
- Authors: Stoffberg, Marguerite Ester
- Date: 2013
- Subjects: Textile fabrics , Materials -- Thermal properties
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10455 , http://hdl.handle.net/10948/d1020931
- Description: The relationship between the fabric parameters, as independent variables, and the comfort related properties, as dependent variables, of commercial suiting fabrics, containing both natural and man-made fibres, have been studied. The fabric parameters measured in the study were mass, thickness, density, and air permeability. The comfort related properties, tested on a Permetest instrument, included water vapour permeability, water vapour resistance, and thermal resistance, with the moisture permeability index being derived. A total of 26 commercial suiting fabrics, covering a wide range of mass, as well as different fibre types and blends and fabric structures, was tested. The fibres covered, included wool, polyester, viscose, and cotton, while the fabric structures covered were 1x1 plain weave, 2x1 twill and 2x2 twill weave. The objectives of this study were to determine the empirical relationships between the measured fabric properties and the measured comfort related properties, and to determine the role, if any, of fibre type and fabric structure, since many claims are made in practice concerning the relative advantages, in terms of comfort, of a specific fibre type or blend, or fabric structure, over others, some of which being supported by research results. Since the fabrics covered, were commercial and were not engineered so that the different fabric parameters (independent variables) and fibre type and blend, as well as fabric structure could be varied independently of each other, the effects of the various fabric parameters on the fabric comfort related properties were determined and quantified by multiple regression analyses (multi-linear and multi-quadratic), and the best fit regression equations, and contribution of each parameter to the overall fit established. It was found that fabric thickness and fabric mass had the largest effect on the comfort related properties as measured here, fabric mass determining, to a large extent, water vapour permeability, and fabric thickness, thermal resistance. The rest of the fabric parameters included in the study had only a relatively small effect on the measured comfort related properties. The influence of fabric parameters, with particular reference to mass and thickness, on the measured comfort related properties, were much greater than that of fibre type or blend, or fabric structure. It was, therefore, concluded from this study, that the fabric parameters, as opposed to the intrinsic characteristics of a particular fibre, whether natural or man-made, largely determined those fabric comfort related properties measured here.
- Full Text:
- Date Issued: 2013
- Authors: Stoffberg, Marguerite Ester
- Date: 2013
- Subjects: Textile fabrics , Materials -- Thermal properties
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10455 , http://hdl.handle.net/10948/d1020931
- Description: The relationship between the fabric parameters, as independent variables, and the comfort related properties, as dependent variables, of commercial suiting fabrics, containing both natural and man-made fibres, have been studied. The fabric parameters measured in the study were mass, thickness, density, and air permeability. The comfort related properties, tested on a Permetest instrument, included water vapour permeability, water vapour resistance, and thermal resistance, with the moisture permeability index being derived. A total of 26 commercial suiting fabrics, covering a wide range of mass, as well as different fibre types and blends and fabric structures, was tested. The fibres covered, included wool, polyester, viscose, and cotton, while the fabric structures covered were 1x1 plain weave, 2x1 twill and 2x2 twill weave. The objectives of this study were to determine the empirical relationships between the measured fabric properties and the measured comfort related properties, and to determine the role, if any, of fibre type and fabric structure, since many claims are made in practice concerning the relative advantages, in terms of comfort, of a specific fibre type or blend, or fabric structure, over others, some of which being supported by research results. Since the fabrics covered, were commercial and were not engineered so that the different fabric parameters (independent variables) and fibre type and blend, as well as fabric structure could be varied independently of each other, the effects of the various fabric parameters on the fabric comfort related properties were determined and quantified by multiple regression analyses (multi-linear and multi-quadratic), and the best fit regression equations, and contribution of each parameter to the overall fit established. It was found that fabric thickness and fabric mass had the largest effect on the comfort related properties as measured here, fabric mass determining, to a large extent, water vapour permeability, and fabric thickness, thermal resistance. The rest of the fabric parameters included in the study had only a relatively small effect on the measured comfort related properties. The influence of fabric parameters, with particular reference to mass and thickness, on the measured comfort related properties, were much greater than that of fibre type or blend, or fabric structure. It was, therefore, concluded from this study, that the fabric parameters, as opposed to the intrinsic characteristics of a particular fibre, whether natural or man-made, largely determined those fabric comfort related properties measured here.
- Full Text:
- Date Issued: 2013
A Comparative study of two copper(II) based metal-organic frameworks : Cu2¼(OH)½B4C•8H2O and Cu2Na(OH)B4C•7H2O
- Authors: Coombes, Matthew
- Date: 2013
- Subjects: Copper , Organometallic compounds , Supramolecular organometallic chemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4533 , http://hdl.handle.net/10962/d1016245
- Description: This study focussed on two copper(II)-containing metal-organic frameworks (MOFs): Cu2Na(OH)B4C•7H2O and Cu2¼(OH)½B4C•8H2O (B4C = 1,2,4,5- benzenetetracarboxylate). They are both covalent, three-dimensional metalorganic framework polymers containing voids filled with water molecules. Both were characterised by elemental analysis, infrared spectroscopy, X-ray powder diffractometry (both in situ and regular), thermogravimetric analysis, differential scanning calorimetry and X-ray photoelectron spectroscopy. These two MOFs are essentially identical, with the only difference being the substitution of sodium by copper at every 4th site (disordered throughout the crystal). The guest inclusion properties of both MOFs were studied and compared. Although both structures collapse on dehydration, it was observed that Cu2Na(OH)B4C•7H2O is able to take up signifcant amounts of water, methanol and ethanol. All these processes are fully reversible. Car-Parrinello molecular dynamics studies suggest that it is a strong interaction between the oxygen atoms on these molecules with the sodium cation of the MOF that is responsible for this signifcant uptake. In contrast, Cu2¼ (OH)½ B4C•8H2O, the MOF without a sodium cation, did not demonstrate any methanol or ethanol uptake, but was able to take up some water. The uptake of water, however, is not a fully reversible process. The absence of sodium likely results in insuffcient energy to draw methanol and ethanol into the framework, while a subtle rotation of a carboxylate group on dehydration decreases the ability of the framework to form hydrogen bonds, thus reducing the ability to take up water. A series of hydrothermal syntheses were performed in order to develop a method of synthesis superior to the current gel-based synthesis that requires several months and has poor yields. The hydrothermal products were characterized by elemental analysis, infrared spectroscopy, X-ray powder diffractometry, thermogravimetric analysis and differential scanning calorimetry. It was shown that the MOF Cu2Na(OH)B4C•7H2O may be synthesised in almost 100% yield by using a temperature of 120°C over a period of 72 hours. It was not possible to synthesise Cu2¼ (OH)½ B4C•8H2O in a 100% yield - it was only obtained as a minor product.
- Full Text:
- Date Issued: 2013
- Authors: Coombes, Matthew
- Date: 2013
- Subjects: Copper , Organometallic compounds , Supramolecular organometallic chemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4533 , http://hdl.handle.net/10962/d1016245
- Description: This study focussed on two copper(II)-containing metal-organic frameworks (MOFs): Cu2Na(OH)B4C•7H2O and Cu2¼(OH)½B4C•8H2O (B4C = 1,2,4,5- benzenetetracarboxylate). They are both covalent, three-dimensional metalorganic framework polymers containing voids filled with water molecules. Both were characterised by elemental analysis, infrared spectroscopy, X-ray powder diffractometry (both in situ and regular), thermogravimetric analysis, differential scanning calorimetry and X-ray photoelectron spectroscopy. These two MOFs are essentially identical, with the only difference being the substitution of sodium by copper at every 4th site (disordered throughout the crystal). The guest inclusion properties of both MOFs were studied and compared. Although both structures collapse on dehydration, it was observed that Cu2Na(OH)B4C•7H2O is able to take up signifcant amounts of water, methanol and ethanol. All these processes are fully reversible. Car-Parrinello molecular dynamics studies suggest that it is a strong interaction between the oxygen atoms on these molecules with the sodium cation of the MOF that is responsible for this signifcant uptake. In contrast, Cu2¼ (OH)½ B4C•8H2O, the MOF without a sodium cation, did not demonstrate any methanol or ethanol uptake, but was able to take up some water. The uptake of water, however, is not a fully reversible process. The absence of sodium likely results in insuffcient energy to draw methanol and ethanol into the framework, while a subtle rotation of a carboxylate group on dehydration decreases the ability of the framework to form hydrogen bonds, thus reducing the ability to take up water. A series of hydrothermal syntheses were performed in order to develop a method of synthesis superior to the current gel-based synthesis that requires several months and has poor yields. The hydrothermal products were characterized by elemental analysis, infrared spectroscopy, X-ray powder diffractometry, thermogravimetric analysis and differential scanning calorimetry. It was shown that the MOF Cu2Na(OH)B4C•7H2O may be synthesised in almost 100% yield by using a temperature of 120°C over a period of 72 hours. It was not possible to synthesise Cu2¼ (OH)½ B4C•8H2O in a 100% yield - it was only obtained as a minor product.
- Full Text:
- Date Issued: 2013
A comparative study on the effectiveness of minimum service agreements within the public service
- Authors: De Bruin, Frederik Johannes
- Date: 2013
- Subjects: Strikes and lockouts -- Public utilities , Collective labor agreements -- Service industries
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10253 , http://hdl.handle.net/10948/d1020811
- Description: The principle of the right to strike is Internationally recognised. Although the right to strike is not set out explicitly in the International Labour Organizations (ILO) Conventions and Recommendations. It has been discussed on several occasions in the International Labour Conference during the course of preparatory work on instruments dealing with related topics, but for various reasons this has never given rise to international standards (Conventions or Recommendations) directly governing the right to strike. The ILO has determined that the right to strike can be derived from the right to Freedom of Association. The ILO Committee does however recognises certain limitations on the right to strike such as not finding any objection to national legislation that would prohibit the right to strike of armed or police forces. Both the Committee on Freedom of Association and the Committee of experts were also mindful, where public servants are concerned, that the recognition of the right to association of public servants in no way prejudges the question of the right of public servants to strike. The ILO also makes provision for the establishment of essential services as to ensure the continuation of services were the interruption of such would endanger the life, personal safety or health of the whole or part of the population. In this limitation it however holds that a “minimum safety service” may be imposed to ensure the safety of persons, the prevention of accidents and the safety of machinery and equipment In our Constitution, the supreme law of the Country, the right to strike is enshrined and protected in section 23 under the bill of rights. The Constitution however allows enabling legislation, under specific circumstances, to limit a right listed in section 23. The Labour Relations Act (LRA) places a limitation on the right to strike, specifically providing that no person may take part in a strike if that person is engaged in an essential service. Because the right to strike is so important, a limitation of these kind needs to be justified and, to be justified it needs, among other things, to be limited. In section 72 of the LRA provision is made for a minimum service within a designated essential service. Therefore, the ambit of the designated essential service is shrunk to the minimum service and those employees who were denied the right to strike while the broader essential service designation was in place, but who fall outside the defined minimum service, regains the right to strike. The concept of minimum services has however became a matter of regular discussion and debate. The concept of minimum services is not defined to the letter but it is regarded as the minimum service an industry or workplace would require as to ensure interruption of services would not endanger the life, personal safety or health of the whole or part of the population. Our legislatures have also been grappling with the concept of essential and minimum services. They have developed a comprehensive set of amendments trying to address some of the concerns in the composition, powers and functions of the Essential Services Committee (ESC). It is debatable if these proposed amendments would bring forth the necessary change to address these concerns or just become a further bureaucratic hindrance and due to the extreme complexity may even pose a limitation on the right to strike. There is also no differentiation made in the current labour legislation and the proposed amendments, between the public service and the private sector in application of the principle of essential and minimum services. Implementation of these principles in the public services has shown to be extremely challenging. Part of the proposed amendments however makes provision for the specific inclusion of government in the composition of the ESC. It is viewed by the drafters, that the introduction of government nominees to be an innovation to ensure that government is adequately represented on the essential services committee in its capacity as an employer, as a high proportion of essential service matters occur within the public service. This may be viewed as contrary to International standards as the ILO makes clear provision for a differentiated interpretation of the right to freedom of association, the right to strike, essential services and minimum services for people performing functions in the name of the State (public servants). The concept of public servant varies considerably from one country to another. Germany within their governance structure makes provision for a differentiation between civil servants and public servants and the labour rights the two groups may have. In France the military, police and prison services does not have the right to strike. In India public service employees have very limited organising and collective bargaining rights. In Brazil the police and the military do not have the right to strike and there are no legal provisions concerning the right to strike for civil servants. This is in strong contrast with the South African model. The South African Constitution and National Legislation does not allow for a differentiation in the application of labour legislation in the public service and the private sector. The application of the principles of labour relations and more specifically that of the right to strike and the determination of essential services must differ in the public services from that of the private sector. The public service is unique in that when workers in strike action it is not a purely defined labour process between an employer and employees but the public at large becomes a third player within the process. When public servants engage in industrial action they do not only deprive the community of certain rights, but indirectly deprive themselves from the same rights. There has been a resistant fear to implement the provisions of minimum services within the designated essential services within the public service, mainly because of the challenges in conceptualization of the practical implementation of the same. The environment created by the LRA does not specifically provide for the unique circumstances of the public service. The right to strike is a fundamental right for workers and therefore public servants won’t forfeit such. There is a recognition that the State needs to deliver services which will necessitate the application of the principle of essential services. However the answer will be in how minimum services is determined within these essential services. An answer that may not necessarily be contained within the Labour Relations Act.
- Full Text:
- Date Issued: 2013
- Authors: De Bruin, Frederik Johannes
- Date: 2013
- Subjects: Strikes and lockouts -- Public utilities , Collective labor agreements -- Service industries
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10253 , http://hdl.handle.net/10948/d1020811
- Description: The principle of the right to strike is Internationally recognised. Although the right to strike is not set out explicitly in the International Labour Organizations (ILO) Conventions and Recommendations. It has been discussed on several occasions in the International Labour Conference during the course of preparatory work on instruments dealing with related topics, but for various reasons this has never given rise to international standards (Conventions or Recommendations) directly governing the right to strike. The ILO has determined that the right to strike can be derived from the right to Freedom of Association. The ILO Committee does however recognises certain limitations on the right to strike such as not finding any objection to national legislation that would prohibit the right to strike of armed or police forces. Both the Committee on Freedom of Association and the Committee of experts were also mindful, where public servants are concerned, that the recognition of the right to association of public servants in no way prejudges the question of the right of public servants to strike. The ILO also makes provision for the establishment of essential services as to ensure the continuation of services were the interruption of such would endanger the life, personal safety or health of the whole or part of the population. In this limitation it however holds that a “minimum safety service” may be imposed to ensure the safety of persons, the prevention of accidents and the safety of machinery and equipment In our Constitution, the supreme law of the Country, the right to strike is enshrined and protected in section 23 under the bill of rights. The Constitution however allows enabling legislation, under specific circumstances, to limit a right listed in section 23. The Labour Relations Act (LRA) places a limitation on the right to strike, specifically providing that no person may take part in a strike if that person is engaged in an essential service. Because the right to strike is so important, a limitation of these kind needs to be justified and, to be justified it needs, among other things, to be limited. In section 72 of the LRA provision is made for a minimum service within a designated essential service. Therefore, the ambit of the designated essential service is shrunk to the minimum service and those employees who were denied the right to strike while the broader essential service designation was in place, but who fall outside the defined minimum service, regains the right to strike. The concept of minimum services has however became a matter of regular discussion and debate. The concept of minimum services is not defined to the letter but it is regarded as the minimum service an industry or workplace would require as to ensure interruption of services would not endanger the life, personal safety or health of the whole or part of the population. Our legislatures have also been grappling with the concept of essential and minimum services. They have developed a comprehensive set of amendments trying to address some of the concerns in the composition, powers and functions of the Essential Services Committee (ESC). It is debatable if these proposed amendments would bring forth the necessary change to address these concerns or just become a further bureaucratic hindrance and due to the extreme complexity may even pose a limitation on the right to strike. There is also no differentiation made in the current labour legislation and the proposed amendments, between the public service and the private sector in application of the principle of essential and minimum services. Implementation of these principles in the public services has shown to be extremely challenging. Part of the proposed amendments however makes provision for the specific inclusion of government in the composition of the ESC. It is viewed by the drafters, that the introduction of government nominees to be an innovation to ensure that government is adequately represented on the essential services committee in its capacity as an employer, as a high proportion of essential service matters occur within the public service. This may be viewed as contrary to International standards as the ILO makes clear provision for a differentiated interpretation of the right to freedom of association, the right to strike, essential services and minimum services for people performing functions in the name of the State (public servants). The concept of public servant varies considerably from one country to another. Germany within their governance structure makes provision for a differentiation between civil servants and public servants and the labour rights the two groups may have. In France the military, police and prison services does not have the right to strike. In India public service employees have very limited organising and collective bargaining rights. In Brazil the police and the military do not have the right to strike and there are no legal provisions concerning the right to strike for civil servants. This is in strong contrast with the South African model. The South African Constitution and National Legislation does not allow for a differentiation in the application of labour legislation in the public service and the private sector. The application of the principles of labour relations and more specifically that of the right to strike and the determination of essential services must differ in the public services from that of the private sector. The public service is unique in that when workers in strike action it is not a purely defined labour process between an employer and employees but the public at large becomes a third player within the process. When public servants engage in industrial action they do not only deprive the community of certain rights, but indirectly deprive themselves from the same rights. There has been a resistant fear to implement the provisions of minimum services within the designated essential services within the public service, mainly because of the challenges in conceptualization of the practical implementation of the same. The environment created by the LRA does not specifically provide for the unique circumstances of the public service. The right to strike is a fundamental right for workers and therefore public servants won’t forfeit such. There is a recognition that the State needs to deliver services which will necessitate the application of the principle of essential services. However the answer will be in how minimum services is determined within these essential services. An answer that may not necessarily be contained within the Labour Relations Act.
- Full Text:
- Date Issued: 2013
A contribution to the theory of prime modules
- Authors: Ssevviiri, David
- Date: 2013
- Subjects: Modules (Algebra) , Radical theory , Rings (Algebra)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10510 , http://hdl.handle.net/10948/d1019923
- Description: This thesis is aimed at generalizing notions of rings to modules. In par-ticular, notions of completely prime ideals, s-prime ideals, 2-primal rings and nilpotency of elements of rings are respectively generalized to completely prime submodules and classical completely prime submodules, s-prime submodules, 2-primal modules and nilpotency of elements of modules. Properties and rad-icals that arise from each of these notions are studied.
- Full Text:
- Date Issued: 2013
- Authors: Ssevviiri, David
- Date: 2013
- Subjects: Modules (Algebra) , Radical theory , Rings (Algebra)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10510 , http://hdl.handle.net/10948/d1019923
- Description: This thesis is aimed at generalizing notions of rings to modules. In par-ticular, notions of completely prime ideals, s-prime ideals, 2-primal rings and nilpotency of elements of rings are respectively generalized to completely prime submodules and classical completely prime submodules, s-prime submodules, 2-primal modules and nilpotency of elements of modules. Properties and rad-icals that arise from each of these notions are studied.
- Full Text:
- Date Issued: 2013
A control framework for the assessment of information security culture
- Authors: Okere, Irene Onyekachi
- Date: 2013
- Subjects: Data encryption (Computer science) , Business -- Data processing -- Security measures , Computer security
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9818 , http://hdl.handle.net/10948/d1019861
- Description: The modern organisation relies heavily on information to function effectively. With such reliance on information, it is vital that information be protected from both internal (employees) and external threats. The protection of information or information security to a large extent depends on the behaviour of humans (employees) in the organisation. The behaviour of employees is one of the top information security issues facing organisations as the human factor is regarded as the weakest link in the security chain. To address this human factor many researchers have suggested the fostering of a culture of information security so that information security becomes second nature to employees. Information security culture as defined for this research study exists in four levels namely artefacts, espoused values, shared tacit assumptions and information security knowledge. An important step in the fostering of an information security culture is the assessment of the current state of such a culture. Gaps in current approaches for assessing information security culture were identified and this research study proposes the use of a control framework to address the identified gaps. This research study focuses on the assessment of information security culture and addresses 5 research objectives namely 1) to describe information security culture in the field of information security, 2) to determine ways to foster information security culture in an organisation, 3) to demonstrate the gap in current approaches used to assess information security culture, 4) to determine the components that could be used for the assessment of information security culture for each of the culture’s underlying levels and 5) to describe a process for the assessment of information security culture for all four levels. This research study follows a qualitative approach utilising a design science strategy and multi-method qualitative data collection techniques including literature review, qualitative content analysis, argumentation, and modelling techniques. The research methods provide a means for the interpretation of the data and the development of the proposed control framework.
- Full Text:
- Date Issued: 2013
- Authors: Okere, Irene Onyekachi
- Date: 2013
- Subjects: Data encryption (Computer science) , Business -- Data processing -- Security measures , Computer security
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9818 , http://hdl.handle.net/10948/d1019861
- Description: The modern organisation relies heavily on information to function effectively. With such reliance on information, it is vital that information be protected from both internal (employees) and external threats. The protection of information or information security to a large extent depends on the behaviour of humans (employees) in the organisation. The behaviour of employees is one of the top information security issues facing organisations as the human factor is regarded as the weakest link in the security chain. To address this human factor many researchers have suggested the fostering of a culture of information security so that information security becomes second nature to employees. Information security culture as defined for this research study exists in four levels namely artefacts, espoused values, shared tacit assumptions and information security knowledge. An important step in the fostering of an information security culture is the assessment of the current state of such a culture. Gaps in current approaches for assessing information security culture were identified and this research study proposes the use of a control framework to address the identified gaps. This research study focuses on the assessment of information security culture and addresses 5 research objectives namely 1) to describe information security culture in the field of information security, 2) to determine ways to foster information security culture in an organisation, 3) to demonstrate the gap in current approaches used to assess information security culture, 4) to determine the components that could be used for the assessment of information security culture for each of the culture’s underlying levels and 5) to describe a process for the assessment of information security culture for all four levels. This research study follows a qualitative approach utilising a design science strategy and multi-method qualitative data collection techniques including literature review, qualitative content analysis, argumentation, and modelling techniques. The research methods provide a means for the interpretation of the data and the development of the proposed control framework.
- Full Text:
- Date Issued: 2013
A cooperative benefits framework in South Africa's land redistribution process: the case of sugarcane farmland transfers
- Mbatha, Cyril N, Antrobus, Geoffrey G
- Authors: Mbatha, Cyril N , Antrobus, Geoffrey G
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/142922 , vital:38176 , DOI: 10.1080/03031853.2012.741207
- Description: A good indicator of successful land redistribution cases has to be the continuation of viable productivity rates in their post-transfer periods. Continued productivity benefits all the stakeholders that are involved in the process. Unfortunately, negative productivity levels have been reported in numerous South African land redistribution transfers in recent years. A game theoretic perspective is adopted to illustrate and argue that cooperation among key stakeholders, which could be enforced through long-term contracts between land buyers, sellers and new owners, may lead to maintenance and higher productivity levels and other benefits within the country's land redistribution process.
- Full Text:
- Date Issued: 2013
- Authors: Mbatha, Cyril N , Antrobus, Geoffrey G
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/142922 , vital:38176 , DOI: 10.1080/03031853.2012.741207
- Description: A good indicator of successful land redistribution cases has to be the continuation of viable productivity rates in their post-transfer periods. Continued productivity benefits all the stakeholders that are involved in the process. Unfortunately, negative productivity levels have been reported in numerous South African land redistribution transfers in recent years. A game theoretic perspective is adopted to illustrate and argue that cooperation among key stakeholders, which could be enforced through long-term contracts between land buyers, sellers and new owners, may lead to maintenance and higher productivity levels and other benefits within the country's land redistribution process.
- Full Text:
- Date Issued: 2013