"To learn how to speak": a study of Jeremy Cronin's poetry
- Authors: Pinnock, William
- Date: 2014
- Subjects: Poets, South African , Historical materialism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8484 , http://hdl.handle.net/10948/d1021038
- Description: In the chapters that follow, the porous boundary between the public and the private in Jeremy Cronin’s poetry is investigated in his three collections, Inside (1983), Even the Dead: Poems, Parables and a Jeremiad (1996) and More Than a Casual Contact (2006). I argue two particular Marxist theorists are central to reading Cronin’s poetry: Bertolt Brecht, and his notion of the Verfremdungseffekt, and Walter Benjamin and his work on historical materialism, primarily the essay On the Concept of History / Theses on the Philosophy of History (1940). Both theorists focus on the work of art in a historically contextualized manner, which extends the challenge to the boundary between the public and the private. Their work is underpinned by the desire to draw out hidden narratives occluded under the grand narratives of history and capitalist ideas of progress. I argue that these are the major preoccupations in Cronin’s oeuvre as well. As such Cronin’s poetry may be seen to write against a perspective that proposes a linear conceptualisation of history. The poetry therefore challenges the notion that art speaks of ‘universal truths.’ Such ideas of History and Truth, if viewed uncritically, allow for a tendency to conceive of the past as unchanging, which subconsciously promotes the idea that social and political realities are merely logical evolutionary steps. I argue that Cronin’s poetry is thus purposefully interruptive in the way that it confronts the damaging consequences of the linear conceptualisation of history and the universal truth it promotes. His work attempts to find new ways of connection and expression through learning from South Africa’s violent past. The significance of understanding each other and the historical environment as opposed to imposing perspectives that underwrite the symbolic order requires the transformation rather than the simple transferral of power, and is a central focus throughout Cronin’s oeuvre. This position suggests that while the struggle for political freedom may be over, the necessity to rethink how South Africans relate to each other is only beginning. Chapter One will focus on positioning Cronin, the poet and public figure, in South African literature and literary criticism. In this regard, two general trends have operated as critical paradigms in the study of South African poetry, namely Formalism (or ‘prac crit’) and a Marxist inflected materialism, which have in many ways perpetuated the division between the private and the public. This has resulted in poetry being read with an exclusive focus on either one of these two aspects, overlooking the possibilities of dialogue that may take place between them. Cronin’s perspective on these polarised responses will be discussed, which will illustrate the similarity of his position to Ndebele’s notion of the ‘ordinary’ which suggests a way beyond these binaries. This will lead to a discussion of how South African poets responded to the transition phase, suggesting that the elements of the polarisation still remained. Considering the major influences and paradigms when reading Cronin’s oeuvre provides a foundation for the following three chapters. These include Cronin’s use of Romanticism, Bertolt Brecht and the V-Effekt and Walter Benjamin’s perspectives on historical materialism. In addition to these three theoretical paradigms, the relevance of Pablo Neruda’s poetry to Cronin’s work is also foregrounded. In Chapter Two, the focus will be on Cronin’s first collection of poetry, Inside, concentrating on Cronin’s use of language as a way of constructing poetry in the sparseness of the prison experience. This will show an abiding preoccupation of learning to speak in a language that considers the material context out of which it emerges. In this regard, the poems “Poem-Shrike” “Prologue” and “Cave-site” are analysed. In addition, one of the central poems in Cronin’s oeuvre, “To learn how to speak […],” will be examined in order to illustrate how the poet extends this project on a meta-poetic level, asking for South African poets to ‘learn how to speak’ in the voices of South African experience and histories. I will show how this is linked to Cronin’s “Walking on Air” which illustrates how the V-Effeckt recovers the small private histories through re-telling the life story of James Matthews, a fellow prisoner incarcerated for his anti-apartheid activism, revealing how this story is intimately connected to the public sphere. In Chapter Three, Cronin’s second collection: Even the Dead: Poems, Parables and a Jeremiad will be examined. In the poem “Three Reasons for a Mixed, Umrabulo, Round-the-Corner Poetry” Cronin resists inherited Western poetic conventions by incorporating and subverting versions of the Romantic aesthetic, arguing for poetry to be immersed in South African multi-lingual and multi-cultural experiences. “Even the Dead” reveals how Cronin uses Walter Benjamin’s perspectives on historical materialism to confront amnesia. In terms of the themes established in “To learn how to speak […]”, the poem “Moorage” demonstrates how the public and private can never be separated in Cronin’s work. The final section of this chapter will examine how Cronin responds to Pablo Neruda’s poems “I am explaining a few things” and “The Education of a Chieftain,” and how these poems challenge narratives that privilege the ‘great leader’ instead of the so-called smaller individuals’ stories. Chapter Four examines selections from Cronin’s third collection, focusing on Cronin’s use of the automobile, charting an ambiguous trajectory through the ‘new’ South Africa. The examination of the poems “Where to begin?”, “Switchback” and “End of the century - which is why wipers,” all attempt to include individuals left on the margins of the narrative of global freeways and neo-liberal capitalist progress. The poems present an interrogation of how ‘vision’ is constructed. This will show that the poetry responds to the experiences of the marginalised under these grand narratives in a primarily fragmentary and interruptive manner. This in effect constitutes the culmination of Cronin’s poetic journey and the search for new ways of envisaging South Africa’s future and finding a new language with which to speak it.
- Full Text:
- Date Issued: 2014
- Authors: Pinnock, William
- Date: 2014
- Subjects: Poets, South African , Historical materialism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8484 , http://hdl.handle.net/10948/d1021038
- Description: In the chapters that follow, the porous boundary between the public and the private in Jeremy Cronin’s poetry is investigated in his three collections, Inside (1983), Even the Dead: Poems, Parables and a Jeremiad (1996) and More Than a Casual Contact (2006). I argue two particular Marxist theorists are central to reading Cronin’s poetry: Bertolt Brecht, and his notion of the Verfremdungseffekt, and Walter Benjamin and his work on historical materialism, primarily the essay On the Concept of History / Theses on the Philosophy of History (1940). Both theorists focus on the work of art in a historically contextualized manner, which extends the challenge to the boundary between the public and the private. Their work is underpinned by the desire to draw out hidden narratives occluded under the grand narratives of history and capitalist ideas of progress. I argue that these are the major preoccupations in Cronin’s oeuvre as well. As such Cronin’s poetry may be seen to write against a perspective that proposes a linear conceptualisation of history. The poetry therefore challenges the notion that art speaks of ‘universal truths.’ Such ideas of History and Truth, if viewed uncritically, allow for a tendency to conceive of the past as unchanging, which subconsciously promotes the idea that social and political realities are merely logical evolutionary steps. I argue that Cronin’s poetry is thus purposefully interruptive in the way that it confronts the damaging consequences of the linear conceptualisation of history and the universal truth it promotes. His work attempts to find new ways of connection and expression through learning from South Africa’s violent past. The significance of understanding each other and the historical environment as opposed to imposing perspectives that underwrite the symbolic order requires the transformation rather than the simple transferral of power, and is a central focus throughout Cronin’s oeuvre. This position suggests that while the struggle for political freedom may be over, the necessity to rethink how South Africans relate to each other is only beginning. Chapter One will focus on positioning Cronin, the poet and public figure, in South African literature and literary criticism. In this regard, two general trends have operated as critical paradigms in the study of South African poetry, namely Formalism (or ‘prac crit’) and a Marxist inflected materialism, which have in many ways perpetuated the division between the private and the public. This has resulted in poetry being read with an exclusive focus on either one of these two aspects, overlooking the possibilities of dialogue that may take place between them. Cronin’s perspective on these polarised responses will be discussed, which will illustrate the similarity of his position to Ndebele’s notion of the ‘ordinary’ which suggests a way beyond these binaries. This will lead to a discussion of how South African poets responded to the transition phase, suggesting that the elements of the polarisation still remained. Considering the major influences and paradigms when reading Cronin’s oeuvre provides a foundation for the following three chapters. These include Cronin’s use of Romanticism, Bertolt Brecht and the V-Effekt and Walter Benjamin’s perspectives on historical materialism. In addition to these three theoretical paradigms, the relevance of Pablo Neruda’s poetry to Cronin’s work is also foregrounded. In Chapter Two, the focus will be on Cronin’s first collection of poetry, Inside, concentrating on Cronin’s use of language as a way of constructing poetry in the sparseness of the prison experience. This will show an abiding preoccupation of learning to speak in a language that considers the material context out of which it emerges. In this regard, the poems “Poem-Shrike” “Prologue” and “Cave-site” are analysed. In addition, one of the central poems in Cronin’s oeuvre, “To learn how to speak […],” will be examined in order to illustrate how the poet extends this project on a meta-poetic level, asking for South African poets to ‘learn how to speak’ in the voices of South African experience and histories. I will show how this is linked to Cronin’s “Walking on Air” which illustrates how the V-Effeckt recovers the small private histories through re-telling the life story of James Matthews, a fellow prisoner incarcerated for his anti-apartheid activism, revealing how this story is intimately connected to the public sphere. In Chapter Three, Cronin’s second collection: Even the Dead: Poems, Parables and a Jeremiad will be examined. In the poem “Three Reasons for a Mixed, Umrabulo, Round-the-Corner Poetry” Cronin resists inherited Western poetic conventions by incorporating and subverting versions of the Romantic aesthetic, arguing for poetry to be immersed in South African multi-lingual and multi-cultural experiences. “Even the Dead” reveals how Cronin uses Walter Benjamin’s perspectives on historical materialism to confront amnesia. In terms of the themes established in “To learn how to speak […]”, the poem “Moorage” demonstrates how the public and private can never be separated in Cronin’s work. The final section of this chapter will examine how Cronin responds to Pablo Neruda’s poems “I am explaining a few things” and “The Education of a Chieftain,” and how these poems challenge narratives that privilege the ‘great leader’ instead of the so-called smaller individuals’ stories. Chapter Four examines selections from Cronin’s third collection, focusing on Cronin’s use of the automobile, charting an ambiguous trajectory through the ‘new’ South Africa. The examination of the poems “Where to begin?”, “Switchback” and “End of the century - which is why wipers,” all attempt to include individuals left on the margins of the narrative of global freeways and neo-liberal capitalist progress. The poems present an interrogation of how ‘vision’ is constructed. This will show that the poetry responds to the experiences of the marginalised under these grand narratives in a primarily fragmentary and interruptive manner. This in effect constitutes the culmination of Cronin’s poetic journey and the search for new ways of envisaging South Africa’s future and finding a new language with which to speak it.
- Full Text:
- Date Issued: 2014
'n Ondersoek na die uitbeelding van Khoisan-karakters deur wit Afrikaanse prosateurs: 1994-2014
- Authors: December, Peter
- Date: 2017
- Subjects: Khoikhoi (African people) -- South Africa -- History Khoikhoi (African people) -- Race identity -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/22070 , vital:29819
- Description: This dissertation offers a literary-thematic investigation based on a postcolonial approach to the representation of the Khoisan and their descendants. I restricted my scope to selected Afrikaans novels at the centre of critical attention between between 1994 and 2014. Earlier novels in this period under discussion are Dolf van Niekerk’s Koms van die hyreën (1994), Willem Kotze’s Tsats van die Kalahari (1994), Die spoorsnyer (1994), Olifantjagters (1997) and Gif (2001) by Piet van Rooyen, plus Karel Schoeman’s Verkenning (1996). Later texts in the focus are Duiwelskloof (1998) and Bidsprinkaan (2005) by André P. Brink, Dalene Matthee’s Pieternella van die Kaap (2000), Eben Venter’s Santa Gamka (2009) and most recently, the Hertzog prize winner of 2015, Buys by Willem Anker (2014). Themes central to South African literature will form the focus of the research, namely intercultural interaction between the first inhabitants of South Africa and missionaries, the question of land ownership, the language motif, and the role of religion (indigenous versus Western belief systems). Attention will also be on more specific issues such as the nature of the relationship between the Khoisan and the colonisers, the characterization of the Khoisan by the selected white authors, as well as other contemporary debates. The secondary objective of the study is to review the historical presence of the Khoisan and their descendants as reflected through the fictional lense of these authors writing over the last two decades, since democratization of the regime in 1994. My focus is particularly on the substantial cultural contribution of the Khoi and the San, as reflected through their representation in fictional works. The question will be posed whether the portrayal of Khoisan characters in novels after 1994 is different from the portrayal in fiction before 1994? My hypothesis is that in the fictional representation one finds a move towards restoration of their human dignity, yet the fact remains that all the authors are white. A different study of fictional works by coloured writers (whose numbers as Afrikaans authors grew substantially after 1994), investigating their representation of the descendants of the Khoi and the San, would in all probability yield radically different results, as the white authors imagine the characters and their consciousness from outside the community and the racial group, whereas the coloured writers belong to the community and the group that they portray.
- Full Text:
- Date Issued: 2017
- Authors: December, Peter
- Date: 2017
- Subjects: Khoikhoi (African people) -- South Africa -- History Khoikhoi (African people) -- Race identity -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/22070 , vital:29819
- Description: This dissertation offers a literary-thematic investigation based on a postcolonial approach to the representation of the Khoisan and their descendants. I restricted my scope to selected Afrikaans novels at the centre of critical attention between between 1994 and 2014. Earlier novels in this period under discussion are Dolf van Niekerk’s Koms van die hyreën (1994), Willem Kotze’s Tsats van die Kalahari (1994), Die spoorsnyer (1994), Olifantjagters (1997) and Gif (2001) by Piet van Rooyen, plus Karel Schoeman’s Verkenning (1996). Later texts in the focus are Duiwelskloof (1998) and Bidsprinkaan (2005) by André P. Brink, Dalene Matthee’s Pieternella van die Kaap (2000), Eben Venter’s Santa Gamka (2009) and most recently, the Hertzog prize winner of 2015, Buys by Willem Anker (2014). Themes central to South African literature will form the focus of the research, namely intercultural interaction between the first inhabitants of South Africa and missionaries, the question of land ownership, the language motif, and the role of religion (indigenous versus Western belief systems). Attention will also be on more specific issues such as the nature of the relationship between the Khoisan and the colonisers, the characterization of the Khoisan by the selected white authors, as well as other contemporary debates. The secondary objective of the study is to review the historical presence of the Khoisan and their descendants as reflected through the fictional lense of these authors writing over the last two decades, since democratization of the regime in 1994. My focus is particularly on the substantial cultural contribution of the Khoi and the San, as reflected through their representation in fictional works. The question will be posed whether the portrayal of Khoisan characters in novels after 1994 is different from the portrayal in fiction before 1994? My hypothesis is that in the fictional representation one finds a move towards restoration of their human dignity, yet the fact remains that all the authors are white. A different study of fictional works by coloured writers (whose numbers as Afrikaans authors grew substantially after 1994), investigating their representation of the descendants of the Khoi and the San, would in all probability yield radically different results, as the white authors imagine the characters and their consciousness from outside the community and the racial group, whereas the coloured writers belong to the community and the group that they portray.
- Full Text:
- Date Issued: 2017
An approach to analyzing gold supply from the South African gold mines
- Authors: Mather, Diarmid John
- Date: 1995
- Subjects: Gold mines and mining -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:1015 , http://hdl.handle.net/10962/d1002750 , Gold mines and mining -- Economic aspects -- South Africa
- Description: The gold mining fIrm in South Africa is viewed as a normal fIrm producing gold bearing ore but faced with a quality constraint (grade). Grade, however, is never uniformly distributed in a metalliferous deposit and because high grades are mined fIrst, the quality constraint becomes increasingly severe with cumulated production. The fIrm will continue to mine gold bearing ore until it reaches its mining limit where the marginal cost of recovering the gold is equal to the marginal revenue received from that gold and at that point the economic deposit becomes exhausted. Because the mining limit is determined by cost/technology and price, it is not fIxed and thus the point of economic exhaustion may change. When high grades are mined fIrst the relationship between the tonnage of gold ore and the grade describes the rate at which the grade is expected to fall with cumulated production. In this thesis, the grade for South African Witwatersrand gold producers is modelled to fall exponentially. The mining limit, determined by costs/technology and price, can be expressed in terms of grade. By predicting the decay in grade relative to the tonnage of gold ore and applying a mining limit, a life-time size of the economic deposit can be estimated. The remaining life of a producing gold mine can then be determined and the flow of gold predicted. An empirical treatment using the disk model of a gold deposit is undertaken for a gold mine, a goldfIeld and the total Witwatersrand gold deposit. A dynamic econometric analysis of expected mining costs and gold prices is not attempted; however certain examples are used to illustrate the applicability of the model and the influence of the South African gold mining tax formula on the life of the mine.
- Full Text:
- Date Issued: 1995
- Authors: Mather, Diarmid John
- Date: 1995
- Subjects: Gold mines and mining -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:1015 , http://hdl.handle.net/10962/d1002750 , Gold mines and mining -- Economic aspects -- South Africa
- Description: The gold mining fIrm in South Africa is viewed as a normal fIrm producing gold bearing ore but faced with a quality constraint (grade). Grade, however, is never uniformly distributed in a metalliferous deposit and because high grades are mined fIrst, the quality constraint becomes increasingly severe with cumulated production. The fIrm will continue to mine gold bearing ore until it reaches its mining limit where the marginal cost of recovering the gold is equal to the marginal revenue received from that gold and at that point the economic deposit becomes exhausted. Because the mining limit is determined by cost/technology and price, it is not fIxed and thus the point of economic exhaustion may change. When high grades are mined fIrst the relationship between the tonnage of gold ore and the grade describes the rate at which the grade is expected to fall with cumulated production. In this thesis, the grade for South African Witwatersrand gold producers is modelled to fall exponentially. The mining limit, determined by costs/technology and price, can be expressed in terms of grade. By predicting the decay in grade relative to the tonnage of gold ore and applying a mining limit, a life-time size of the economic deposit can be estimated. The remaining life of a producing gold mine can then be determined and the flow of gold predicted. An empirical treatment using the disk model of a gold deposit is undertaken for a gold mine, a goldfIeld and the total Witwatersrand gold deposit. A dynamic econometric analysis of expected mining costs and gold prices is not attempted; however certain examples are used to illustrate the applicability of the model and the influence of the South African gold mining tax formula on the life of the mine.
- Full Text:
- Date Issued: 1995
An attempt to assess the part played by Puritan unrest in the causes of the English civil war
- Authors: Dowie, Donald Ian
- Date: 1965
- Subjects: England -- Church history -- 17th century Puritans -- England Great Britain -- History -- Puritan revolution, 1642-1660 Great Britain -- History -- Civil War, 1642-1649
- Language: English
- Type: Thesis , Bachelor , BDiv
- Identifier: vital:1248 , http://hdl.handle.net/10962/d1011414
- Description: The problem which confronts us at the outset, is the problem which has been facing historians for the past three hundred years: What were the causes of the English Civil War? What matters were responsible for the decisive split between Crown & Parliament into two distinct parties, and which ultimately led to civil war? Many theories and interpretations have been given. In this chapter, we will find that there are three major interpretations. The first is that it was a religious struggle - and so the Civil War became known as the 'Puritan Revolution'. The second is that it was a purely political conflict between the Crown and its Ministers, on the one hand, and the House of Commons, which had by then become the 'mirror' of the Puritan element in the country, on the other. And the third is that it was a class, or economic, war. Contemporary historians tended to regard it as a twofold struggle - a conflict over religion on the one hand, and the constitution on the other. It was they who coined the phrase 'Puritan Revolution'. This interpretation, however, has subsequently been challenged, in the light of the detailed research which has been conducted - especially in the field of economic history. And so the Civil War has been interpreted in terms of a social and economic conflict - it is said to be a class war. The social and economic factors have tended to become emphasized while the religious have been pushed into the background - often excluded altogether. It is my intention in this thesis, therefore, to assert once again the very real part played by religious matters in the origins of the English Civil War. Intro., p. 1.
- Full Text:
- Date Issued: 1965
- Authors: Dowie, Donald Ian
- Date: 1965
- Subjects: England -- Church history -- 17th century Puritans -- England Great Britain -- History -- Puritan revolution, 1642-1660 Great Britain -- History -- Civil War, 1642-1649
- Language: English
- Type: Thesis , Bachelor , BDiv
- Identifier: vital:1248 , http://hdl.handle.net/10962/d1011414
- Description: The problem which confronts us at the outset, is the problem which has been facing historians for the past three hundred years: What were the causes of the English Civil War? What matters were responsible for the decisive split between Crown & Parliament into two distinct parties, and which ultimately led to civil war? Many theories and interpretations have been given. In this chapter, we will find that there are three major interpretations. The first is that it was a religious struggle - and so the Civil War became known as the 'Puritan Revolution'. The second is that it was a purely political conflict between the Crown and its Ministers, on the one hand, and the House of Commons, which had by then become the 'mirror' of the Puritan element in the country, on the other. And the third is that it was a class, or economic, war. Contemporary historians tended to regard it as a twofold struggle - a conflict over religion on the one hand, and the constitution on the other. It was they who coined the phrase 'Puritan Revolution'. This interpretation, however, has subsequently been challenged, in the light of the detailed research which has been conducted - especially in the field of economic history. And so the Civil War has been interpreted in terms of a social and economic conflict - it is said to be a class war. The social and economic factors have tended to become emphasized while the religious have been pushed into the background - often excluded altogether. It is my intention in this thesis, therefore, to assert once again the very real part played by religious matters in the origins of the English Civil War. Intro., p. 1.
- Full Text:
- Date Issued: 1965
An in silico analysis, purification and partial kinetic characterisation of a serine protease from Gelidium pristoides
- Authors: Ntsata, Zolani
- Date: 2020
- Subjects: Gelidium Proteolytic enzymes
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/12076 , vital:39149
- Description: The aim of this study was to characterize the protease enzyme (s) from red algae. An in silico analysis of red algae genomes was used to identify gene coding for protease. Protease sequences identified from these genomes were examined for conserved domains, active site and structures. The domain search revealed that the identified sequences were from the five classes of protease enzymes. For function inference, the red algae sequences were aligned to identify the catalytic sites, and the tertiary structures were predicted using homology modelling. An in silico analysis provides an indication of the class and potential functions of the enzymes. However, it cannot predict whether the gene is constitutively expressed in the red algae or under which conditions it may be induced, and it cannot determine the kinetic efficiency of an enzyme against various substrate, or the optimum conditions for the protein activity. Attempts to clone and recombinantly express selected red algae proteases, proved unsuccessful, as the available genomes where from red algae species found mainly in Asia, and the designed primers, therefore, did not amplify a corresponding PCR product from the red algae harvested in South Africa. Crude extracts of red algae collected from Kenton-on-Sea, along the East Coast of South Africa, were screened for protease activity using Benzoyl-Arginine-pNitroAnilide (BApNA) as substrate. The proteases detected in the crude extract were purified using ammonium sulphate precipitation and HiPrep DEAE FF 16/10; CM FF 16/10, and HiPrep Q FF 16/10 columns for ion-exchange chromatography. The HiPrep Q FF 16/10 column yielded active protein, which revealed two bands of 11kDa and 17kDa on SDS-PAGE. It was assumed that these bands represented two subunits of the purified protease. Kinetic characterisation of the purified protease revealed a pH optimum of 9, using BApNA as substrate, a temperature optimum at 60ºC, and sensitivity to temperature when stored above 4ºC. The protease activity was inhibited by Ferric chloride (32%), induced by calcium chloride (156%), no inhibition by magnesium chloride (97%) and slight inhibition by potassium chloride (77%) and manganese chloride (70%). Phenylmethylsulfonyl fluoride (PMSF), a serine protease inhibitor, almost totally inhibited the protease activity, indicating that the protease from red algae was most likely a serine protease. The Km and kcat values were 1.96 µM, and 0.364 s -1 , respectively using BApNA as the substrate. This study revealed that the red algae genome contains numerous genes that encode for proteases from almost all the classes of proteases. A serine protease from the red algae Gelidium pristoides was partially purified and kinetically characterised, confirming that red algae found along the Eastern Coast of South Africa contain genes that express active proteases that may be of medical or industrial interest. Further studies, however, are required to recombinantly express, purify and characterise the numerous proteases encoded by the genes identified in the in silico analysis of this study.
- Full Text:
- Date Issued: 2020
- Authors: Ntsata, Zolani
- Date: 2020
- Subjects: Gelidium Proteolytic enzymes
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/12076 , vital:39149
- Description: The aim of this study was to characterize the protease enzyme (s) from red algae. An in silico analysis of red algae genomes was used to identify gene coding for protease. Protease sequences identified from these genomes were examined for conserved domains, active site and structures. The domain search revealed that the identified sequences were from the five classes of protease enzymes. For function inference, the red algae sequences were aligned to identify the catalytic sites, and the tertiary structures were predicted using homology modelling. An in silico analysis provides an indication of the class and potential functions of the enzymes. However, it cannot predict whether the gene is constitutively expressed in the red algae or under which conditions it may be induced, and it cannot determine the kinetic efficiency of an enzyme against various substrate, or the optimum conditions for the protein activity. Attempts to clone and recombinantly express selected red algae proteases, proved unsuccessful, as the available genomes where from red algae species found mainly in Asia, and the designed primers, therefore, did not amplify a corresponding PCR product from the red algae harvested in South Africa. Crude extracts of red algae collected from Kenton-on-Sea, along the East Coast of South Africa, were screened for protease activity using Benzoyl-Arginine-pNitroAnilide (BApNA) as substrate. The proteases detected in the crude extract were purified using ammonium sulphate precipitation and HiPrep DEAE FF 16/10; CM FF 16/10, and HiPrep Q FF 16/10 columns for ion-exchange chromatography. The HiPrep Q FF 16/10 column yielded active protein, which revealed two bands of 11kDa and 17kDa on SDS-PAGE. It was assumed that these bands represented two subunits of the purified protease. Kinetic characterisation of the purified protease revealed a pH optimum of 9, using BApNA as substrate, a temperature optimum at 60ºC, and sensitivity to temperature when stored above 4ºC. The protease activity was inhibited by Ferric chloride (32%), induced by calcium chloride (156%), no inhibition by magnesium chloride (97%) and slight inhibition by potassium chloride (77%) and manganese chloride (70%). Phenylmethylsulfonyl fluoride (PMSF), a serine protease inhibitor, almost totally inhibited the protease activity, indicating that the protease from red algae was most likely a serine protease. The Km and kcat values were 1.96 µM, and 0.364 s -1 , respectively using BApNA as the substrate. This study revealed that the red algae genome contains numerous genes that encode for proteases from almost all the classes of proteases. A serine protease from the red algae Gelidium pristoides was partially purified and kinetically characterised, confirming that red algae found along the Eastern Coast of South Africa contain genes that express active proteases that may be of medical or industrial interest. Further studies, however, are required to recombinantly express, purify and characterise the numerous proteases encoded by the genes identified in the in silico analysis of this study.
- Full Text:
- Date Issued: 2020
An intervention for high-risk type 2 diabetic clients during preconception and internatal in re-engineering of primary health care
- Authors: Ngoma, Siphokazi Amanda
- Date: 2018
- Subjects: Diabetes Diabetes Mellitus, Type 2
- Language: English
- Type: Thesis , Masters , (MCur) Nursing
- Identifier: http://hdl.handle.net/10353/10199 , vital:35375
- Description: The South African disease profile has changed significantly and has increasing prevalence of overweight and obesity in relation to body mass index. Type 2 diabetes mellitus is greatly associated with increased body mass index and poses a great health concern for women of childbearing age. Complications of type 2 diabetes mellitus in pregnancy has life-threatening for the mother and baby. South African women have a tendency of avoiding and neglecting routine screening before pregnancy, that is part of preconception care or internatal care. The aim of the study sought to identify women of childbearing age with predisposing factors of type 2 diabetes, in order to intervene, using a lifestyle modification to delay and prevent the occurrence of type 2 diabetes. A quantitative intervention study using parallel group randomized control trials was used. One hundred and forty-six women of childbearing age (18-45 years) were recruited and assigned to either control (n=73 + 9) or experimental group (n=73 +9). using a computer software randomizer application to avoid bias in selection of participants by the researcher. Both groups received health education from the researcher and the dietician from hospital. The control group had no intervention done, whereas the experimental group attended physical activity sessions which were administered by a hired lay coach. The findings showed that both groups are at risk of developing type 2 diabetes although they both groups lose weight. The weight loss of the control group was owed to education during recruitment. Vegetable consumption was minimal to the younger age group than the older age groups. Waist circumference above 105cm consumed less vegetables, a higher waist circumference is associated with insulin resistance. There was also minimal exercises and knowledge about the preconception care. Diabetes prevention is vital for the women of childbearing age as it affects both mother and child. The study recommends lifestyle modification (exercise and healthy diet) to prevent and delay of type 2 diabetes and gestational diabetes mellitus. The study also recommends Preconception care and Re- engineering of Primary health care uses community health care workers for screening high risk women during home visits.
- Full Text:
- Date Issued: 2018
- Authors: Ngoma, Siphokazi Amanda
- Date: 2018
- Subjects: Diabetes Diabetes Mellitus, Type 2
- Language: English
- Type: Thesis , Masters , (MCur) Nursing
- Identifier: http://hdl.handle.net/10353/10199 , vital:35375
- Description: The South African disease profile has changed significantly and has increasing prevalence of overweight and obesity in relation to body mass index. Type 2 diabetes mellitus is greatly associated with increased body mass index and poses a great health concern for women of childbearing age. Complications of type 2 diabetes mellitus in pregnancy has life-threatening for the mother and baby. South African women have a tendency of avoiding and neglecting routine screening before pregnancy, that is part of preconception care or internatal care. The aim of the study sought to identify women of childbearing age with predisposing factors of type 2 diabetes, in order to intervene, using a lifestyle modification to delay and prevent the occurrence of type 2 diabetes. A quantitative intervention study using parallel group randomized control trials was used. One hundred and forty-six women of childbearing age (18-45 years) were recruited and assigned to either control (n=73 + 9) or experimental group (n=73 +9). using a computer software randomizer application to avoid bias in selection of participants by the researcher. Both groups received health education from the researcher and the dietician from hospital. The control group had no intervention done, whereas the experimental group attended physical activity sessions which were administered by a hired lay coach. The findings showed that both groups are at risk of developing type 2 diabetes although they both groups lose weight. The weight loss of the control group was owed to education during recruitment. Vegetable consumption was minimal to the younger age group than the older age groups. Waist circumference above 105cm consumed less vegetables, a higher waist circumference is associated with insulin resistance. There was also minimal exercises and knowledge about the preconception care. Diabetes prevention is vital for the women of childbearing age as it affects both mother and child. The study recommends lifestyle modification (exercise and healthy diet) to prevent and delay of type 2 diabetes and gestational diabetes mellitus. The study also recommends Preconception care and Re- engineering of Primary health care uses community health care workers for screening high risk women during home visits.
- Full Text:
- Date Issued: 2018
An investigation into the coverage of diverse forms of tourism in South African travel magazines
- Authors: Kotzé, Louis Jacobus Daniël
- Date: 2004
- Subjects: Tourism -- South Africa , South Africa -- Description and travel Periodicals -- Research
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10992 , http://hdl.handle.net/10948/339 , Tourism -- South Africa , South Africa -- Description and travel Periodicals -- Research
- Description: There have been several changes in tourism in South Africa since 1994. During apartheid, black people were not allowed to become involved in important aspects of tourism, particularly at management level. However, this situation is changing and all cultures are gradually becoming engaged in th e tourism industry. The economic progress of the black community has resulted in the materialization of cultural villages, tourism projects to give rural people jobs, and an increase in township tourist attractions, heritage tours, etc. These initiatives have led to the establishment of certain types of tourism such as cultural tourism, urban tourism and community-based tourism. It could be said without hesitation, at the prescientific level, that the diversity in cultures, for one, is a major attraction of this country. Another change has been the increase in tourism from countries which have been excluded from South Africa in the past. Examples of these are African countries such as Kenya and Nigeria, as well as countries on other continents, including India, Bangladesh and the East-European bloc. Up to 2003/4, South Africa experienced the longest uninterrupted period of economic growth in its history. This resulted in people being able to afford a higher standard of living and therefore having more money to spend on travelling. as the economic growth stimulated the growth of tourism, both local and foreign, in the country. Seen from the perspective of the tourism industry, it is important to keep the public informed and up to date about what a country has to offer in order to maintain the increase in tourism. The media assist in this process. The travelling public is informed by word of mouth, but also through newspapers, magazines, television and radio. Information about the different attractions, whether cultures, wildlife or sport, et cetera, would not always be easy to find, were it not for the media. As tourism grows, more tourist attractions will develop, with a bigger need for tourists to be informed as an immediate result. The role of the media in this information giving is th erefore constantly on the increase.
- Full Text:
- Date Issued: 2004
- Authors: Kotzé, Louis Jacobus Daniël
- Date: 2004
- Subjects: Tourism -- South Africa , South Africa -- Description and travel Periodicals -- Research
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10992 , http://hdl.handle.net/10948/339 , Tourism -- South Africa , South Africa -- Description and travel Periodicals -- Research
- Description: There have been several changes in tourism in South Africa since 1994. During apartheid, black people were not allowed to become involved in important aspects of tourism, particularly at management level. However, this situation is changing and all cultures are gradually becoming engaged in th e tourism industry. The economic progress of the black community has resulted in the materialization of cultural villages, tourism projects to give rural people jobs, and an increase in township tourist attractions, heritage tours, etc. These initiatives have led to the establishment of certain types of tourism such as cultural tourism, urban tourism and community-based tourism. It could be said without hesitation, at the prescientific level, that the diversity in cultures, for one, is a major attraction of this country. Another change has been the increase in tourism from countries which have been excluded from South Africa in the past. Examples of these are African countries such as Kenya and Nigeria, as well as countries on other continents, including India, Bangladesh and the East-European bloc. Up to 2003/4, South Africa experienced the longest uninterrupted period of economic growth in its history. This resulted in people being able to afford a higher standard of living and therefore having more money to spend on travelling. as the economic growth stimulated the growth of tourism, both local and foreign, in the country. Seen from the perspective of the tourism industry, it is important to keep the public informed and up to date about what a country has to offer in order to maintain the increase in tourism. The media assist in this process. The travelling public is informed by word of mouth, but also through newspapers, magazines, television and radio. Information about the different attractions, whether cultures, wildlife or sport, et cetera, would not always be easy to find, were it not for the media. As tourism grows, more tourist attractions will develop, with a bigger need for tourists to be informed as an immediate result. The role of the media in this information giving is th erefore constantly on the increase.
- Full Text:
- Date Issued: 2004
An investigation into the role of student participation in school governance : a Namibian perspective
- Authors: Shekupakela-Nelulu, Rauna
- Date: 2009
- Subjects: Education and state -- Namibia Education, Secondary -- Namibia Student government -- Namibia Student participation in administration -- Namibia School management and organization -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1923 , http://hdl.handle.net/10962/d1007449
- Description: The issue of student participation in school governance is not a new concept in Namibian schools. Student involvement dates back to the 1970's when the country's administration was under the South African apartheid regime. Back then the involvement of students in school affairs was seen by the regime as a political act and attempts by student leaders to involve themselves in educational issues were often quashed. When the country became independent student representation continued as Student Representative Councils (SRC's), later renamed Learners Representative Councils (LRCs). This study attempted to investigate the perceptions of LRCs and other stakeholders - narnely the school principals and the school board members - of the role of students in school governance. The study was conducted in three Senior Secondary Schools in the Kavango region in Namibia. The research respondents were school principals, chairpersons of the LRCs and one chairperson of a school board. The study was conducted in the interpretive paradigm employing the following three qualitative research methods interviews, observation and document analysis to collect data. Through triangulation it was possible to formulate a rich response to the research question. The study found that, although the notion of student participation in school governance was widely accepted, a number of challenges exist that hamper the effectiveness of LRCs in the schools. It was revealed that there was no national policy docunlent that outlined the roles and function of the LRCs. As a result schools had little direction about the LRCs and subsequently they were given little or no attention by the school authorities. This resulted in misunderstandings and in some cases conflict between learners and the school management. The most significant consequence of these problems was the fact that LRCs were not regarded as true role players in school governance. The study thus recommends that a national policy document that legitimates the role of students in school governance be drafted to provide direction and that schools embark on meaningful training programmes for LRC members. The study also calls for further research to address the gap in literature on this phenomenon, particularly in Namibia.
- Full Text:
- Date Issued: 2009
- Authors: Shekupakela-Nelulu, Rauna
- Date: 2009
- Subjects: Education and state -- Namibia Education, Secondary -- Namibia Student government -- Namibia Student participation in administration -- Namibia School management and organization -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1923 , http://hdl.handle.net/10962/d1007449
- Description: The issue of student participation in school governance is not a new concept in Namibian schools. Student involvement dates back to the 1970's when the country's administration was under the South African apartheid regime. Back then the involvement of students in school affairs was seen by the regime as a political act and attempts by student leaders to involve themselves in educational issues were often quashed. When the country became independent student representation continued as Student Representative Councils (SRC's), later renamed Learners Representative Councils (LRCs). This study attempted to investigate the perceptions of LRCs and other stakeholders - narnely the school principals and the school board members - of the role of students in school governance. The study was conducted in three Senior Secondary Schools in the Kavango region in Namibia. The research respondents were school principals, chairpersons of the LRCs and one chairperson of a school board. The study was conducted in the interpretive paradigm employing the following three qualitative research methods interviews, observation and document analysis to collect data. Through triangulation it was possible to formulate a rich response to the research question. The study found that, although the notion of student participation in school governance was widely accepted, a number of challenges exist that hamper the effectiveness of LRCs in the schools. It was revealed that there was no national policy docunlent that outlined the roles and function of the LRCs. As a result schools had little direction about the LRCs and subsequently they were given little or no attention by the school authorities. This resulted in misunderstandings and in some cases conflict between learners and the school management. The most significant consequence of these problems was the fact that LRCs were not regarded as true role players in school governance. The study thus recommends that a national policy document that legitimates the role of students in school governance be drafted to provide direction and that schools embark on meaningful training programmes for LRC members. The study also calls for further research to address the gap in literature on this phenomenon, particularly in Namibia.
- Full Text:
- Date Issued: 2009
An investigation into the use of the standard 7 year-end mathematics results as a predictor of the mark obtained in the final Cape Senior Certificate examination
- Authors: Viljoen, Richard Antony
- Date: 1984
- Subjects: Mathematics -- Study and teaching (Secondary) Mathematics -- Study and teaching (Secondary) -- South Africa -- East London School children -- South Africa -- East London Mathematical ability Examinations -- South Africa -- Evaluation
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1830 , http://hdl.handle.net/10962/d1003749
- Description: From Introduction: As the headmaster of a large co-educational High School in East London, I have to counsel Standard 7 pupils at the end of each year with regard to their subject choices for the Senior Secondary phase. In consultation with the teacher-psychologists and the Standard 7 teachers, one has to make decisions with regard to subjects which could have far-reaching effects on the pupil. Year after year the greatest discussion and most difficult decisions concern whether or not to continue with mathematics. At the end of the Standard 7 year, the pupil is faced with a choice of subjects, one of which is usually mathematics. Depending on the school, this choice is often wide and the average Standard 7 pupil can, in spite of careful counselling and advice, still be bewildered and confused. One of the best methods of objectively predicting pupil performance is through the use of various standardised tests. Although some norm-based tests exist, very few schools apply these tests to help predict mathematics performance in the Senior Secondary Course. To aid the pupil in deciding whether or not mathematics should be taken in Standards 8, 9 and 10 it would be extremely useful if there were some guide or predictor on which this decision could be based, as it is generally accepted amongst teachers that mathematics can be a stumbling block in the Cape Senior Certificate, particularly by the weaker candidate. If it could be shown that the Standard 7 year-end mathematics mark could be used to help predict whether :- •the pupil would be likely to pass or fail mathematics in the Cape Senior Certificate; •what symbol the pupil would obtain; a decision as to whether or not he should continue with the subject could be made at this stage, and, depending on his Standard 7 mark, what the likely consequences of this decision would be. In the United Kingdom in particular, the use of A-level examination results have been used as predictors in subsequent educational courses and this has been the subject of fairly extensive research during the 1970's. The extent to which O-level examination results are predictive of A-level achievement has, however, received very little attention. The situation in South Africa is very similar and very little, if any, work has been done in assessing the effectiveness of using school marks in the lower standards of high school to predict marks in the upper standards. It is difficult to suggest a reason for this as such work would be of inestimable value in providing information for use in the counselling and selection of subjects for pupils embarking on the Senior Secondary Course.
- Full Text:
- Date Issued: 1984
- Authors: Viljoen, Richard Antony
- Date: 1984
- Subjects: Mathematics -- Study and teaching (Secondary) Mathematics -- Study and teaching (Secondary) -- South Africa -- East London School children -- South Africa -- East London Mathematical ability Examinations -- South Africa -- Evaluation
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1830 , http://hdl.handle.net/10962/d1003749
- Description: From Introduction: As the headmaster of a large co-educational High School in East London, I have to counsel Standard 7 pupils at the end of each year with regard to their subject choices for the Senior Secondary phase. In consultation with the teacher-psychologists and the Standard 7 teachers, one has to make decisions with regard to subjects which could have far-reaching effects on the pupil. Year after year the greatest discussion and most difficult decisions concern whether or not to continue with mathematics. At the end of the Standard 7 year, the pupil is faced with a choice of subjects, one of which is usually mathematics. Depending on the school, this choice is often wide and the average Standard 7 pupil can, in spite of careful counselling and advice, still be bewildered and confused. One of the best methods of objectively predicting pupil performance is through the use of various standardised tests. Although some norm-based tests exist, very few schools apply these tests to help predict mathematics performance in the Senior Secondary Course. To aid the pupil in deciding whether or not mathematics should be taken in Standards 8, 9 and 10 it would be extremely useful if there were some guide or predictor on which this decision could be based, as it is generally accepted amongst teachers that mathematics can be a stumbling block in the Cape Senior Certificate, particularly by the weaker candidate. If it could be shown that the Standard 7 year-end mathematics mark could be used to help predict whether :- •the pupil would be likely to pass or fail mathematics in the Cape Senior Certificate; •what symbol the pupil would obtain; a decision as to whether or not he should continue with the subject could be made at this stage, and, depending on his Standard 7 mark, what the likely consequences of this decision would be. In the United Kingdom in particular, the use of A-level examination results have been used as predictors in subsequent educational courses and this has been the subject of fairly extensive research during the 1970's. The extent to which O-level examination results are predictive of A-level achievement has, however, received very little attention. The situation in South Africa is very similar and very little, if any, work has been done in assessing the effectiveness of using school marks in the lower standards of high school to predict marks in the upper standards. It is difficult to suggest a reason for this as such work would be of inestimable value in providing information for use in the counselling and selection of subjects for pupils embarking on the Senior Secondary Course.
- Full Text:
- Date Issued: 1984
An investigation of a Systemic Functional Linguistic approach for teaching Energy to grade 7 Natural Science and Health Education Learners: a Namibian case study
- Authors: Silvanus, Secilia Tulikefo
- Date: 2017
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/8165 , vital:21361
- Description: Learners’ general poor performance in science is a concern in science education. The literature mentions pedagogic strategies such as the use of practical activities and inclusion of indigenous knowledge, which are now acknowledged in various science curricula. In addition, many science educators and researchers are exploring innovative pedagogical approaches which may possibly help learners understand science better in order to improve their performance in the subject. Learners’ poor performance in science and possible strategies for improving this, are also a concern in Namibia. The Namibian national examination results (MoE, 2010-2014) revealed that the topic of Energy is one of those in which learners perform poorly. Energy is an important scientific concept that is widely used in various disciplines and it is thus problematic when science learners struggle to make sense of the scientific description of energy and related concepts. This triggered my interest to conduct a study focusing on the topic of energy. The study involved functional recasting from Systemic Functional Linguistic theory, as an intervention during my teaching the topic of energy to English second language grade 7 Natural Science and Health Education learners. The influence of the approach was investigated through the lens of social constructivism. The interpretive paradigm was adopted in order to make meaning of the learners’ experiences, during and after the intervention. Data collection instruments such as pre and post test, stimulated recall interviews, observation and learners’ journals were used. A qualitative approach was used to analyze the data. The pretest and post test results showed that a noticeable shift had occurred in learners’ understanding - the functional recasting teaching approach positively influenced learners’ sense making of energy concepts. Sense-making of energy concepts was evident in learners’ demonstrating the ability to construct and deconstruct technicality, making comprehensible output, meaningful use of gestures, scientific reasoning and asking relevant questions. The results also revealed dialogic discourse and positive attitudes as factors enabling learners’ progress. The language of learning and teaching, and negative attitudes were found to be constraining factors for learners’ progress. Functional recasting might be useful to science teachers and science teacher training programs as the finding for this study revealed that it enabled learners to make sense of energy concepts using scientific English. When using functional recasting, science teachers should consider the constraining factors and possibly avoid or minimize the impact.
- Full Text:
- Date Issued: 2017
- Authors: Silvanus, Secilia Tulikefo
- Date: 2017
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/8165 , vital:21361
- Description: Learners’ general poor performance in science is a concern in science education. The literature mentions pedagogic strategies such as the use of practical activities and inclusion of indigenous knowledge, which are now acknowledged in various science curricula. In addition, many science educators and researchers are exploring innovative pedagogical approaches which may possibly help learners understand science better in order to improve their performance in the subject. Learners’ poor performance in science and possible strategies for improving this, are also a concern in Namibia. The Namibian national examination results (MoE, 2010-2014) revealed that the topic of Energy is one of those in which learners perform poorly. Energy is an important scientific concept that is widely used in various disciplines and it is thus problematic when science learners struggle to make sense of the scientific description of energy and related concepts. This triggered my interest to conduct a study focusing on the topic of energy. The study involved functional recasting from Systemic Functional Linguistic theory, as an intervention during my teaching the topic of energy to English second language grade 7 Natural Science and Health Education learners. The influence of the approach was investigated through the lens of social constructivism. The interpretive paradigm was adopted in order to make meaning of the learners’ experiences, during and after the intervention. Data collection instruments such as pre and post test, stimulated recall interviews, observation and learners’ journals were used. A qualitative approach was used to analyze the data. The pretest and post test results showed that a noticeable shift had occurred in learners’ understanding - the functional recasting teaching approach positively influenced learners’ sense making of energy concepts. Sense-making of energy concepts was evident in learners’ demonstrating the ability to construct and deconstruct technicality, making comprehensible output, meaningful use of gestures, scientific reasoning and asking relevant questions. The results also revealed dialogic discourse and positive attitudes as factors enabling learners’ progress. The language of learning and teaching, and negative attitudes were found to be constraining factors for learners’ progress. Functional recasting might be useful to science teachers and science teacher training programs as the finding for this study revealed that it enabled learners to make sense of energy concepts using scientific English. When using functional recasting, science teachers should consider the constraining factors and possibly avoid or minimize the impact.
- Full Text:
- Date Issued: 2017
An investigation of female leaders' perceptions of themselves and their roles as leaders in a Catholic School
- Authors: Kauaria, Vejanda
- Date: 2003
- Subjects: Catholic schools -- Namibia -- Administration Women school administrators -- Namibia School management and organization -- Namibia Educational leadership -- Namibia Women in public life -- Namibia Sex discrimination against women -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1626 , http://hdl.handle.net/10962/d1003508
- Description: The question of gender in leadership continues to be a contentious and poorly understood phenomenon. There seems general agreement that women do lead differently from men, and this study begins from that premise, focusing on a case in which leadership has traditionally been the domain of females. The case was chosen for its uniqueness, the assumption being that in these circumstances leadership may have developed particular characteristics. Following a qualitative approach (drawing on phenomenology), the study seeks to investigate how women leaders experience their roles as leaders. In-depth interviews made it possible for me to capture the perceptions and experiences of the three women leaders I interviewed. The study reveals that women are more inclined to use interactive styles of leadership. Women use leadership that is more participative, negotiative, cooperative, shared and collaborative. These characteristics are in line with the features of transformational leadership which differs from the more traditional transactional leadership that is more controlled and directive. The study has also shown that leadership develops from within the person of the leader as the leader is the one who spearheads the organization through vision, ideas, beliefs andassumptions. The findings of this study suggest thus that unless women are given chances to prove how they can lead, this new approach of leadership within them and that is required by modern organizations would be lost and leadership would remain relatively unchanged and undesirable. In the context of Namibia, this study should be of potential significance because of the rapid change that is taking place in the inclusion of women in leadership and management positions in education.
- Full Text:
- Date Issued: 2003
- Authors: Kauaria, Vejanda
- Date: 2003
- Subjects: Catholic schools -- Namibia -- Administration Women school administrators -- Namibia School management and organization -- Namibia Educational leadership -- Namibia Women in public life -- Namibia Sex discrimination against women -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1626 , http://hdl.handle.net/10962/d1003508
- Description: The question of gender in leadership continues to be a contentious and poorly understood phenomenon. There seems general agreement that women do lead differently from men, and this study begins from that premise, focusing on a case in which leadership has traditionally been the domain of females. The case was chosen for its uniqueness, the assumption being that in these circumstances leadership may have developed particular characteristics. Following a qualitative approach (drawing on phenomenology), the study seeks to investigate how women leaders experience their roles as leaders. In-depth interviews made it possible for me to capture the perceptions and experiences of the three women leaders I interviewed. The study reveals that women are more inclined to use interactive styles of leadership. Women use leadership that is more participative, negotiative, cooperative, shared and collaborative. These characteristics are in line with the features of transformational leadership which differs from the more traditional transactional leadership that is more controlled and directive. The study has also shown that leadership develops from within the person of the leader as the leader is the one who spearheads the organization through vision, ideas, beliefs andassumptions. The findings of this study suggest thus that unless women are given chances to prove how they can lead, this new approach of leadership within them and that is required by modern organizations would be lost and leadership would remain relatively unchanged and undesirable. In the context of Namibia, this study should be of potential significance because of the rapid change that is taking place in the inclusion of women in leadership and management positions in education.
- Full Text:
- Date Issued: 2003
An investigation of how members of a school governing body perceive and experience their roles : a case study
- Authors: Lusaseni, Pamella Hombakazi
- Date: 1999
- Subjects: School management and organization -- South Africa School boards -- South Africa Educational leadership School personnel management
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1898 , http://hdl.handle.net/10962/d1006204
- Description: Education in South Africa is currently facing a lot of changes. This study was prompted by one of these changes, the introduction of a School Governing Body (SGB), constituted in terms of the 1996 Schools Act (South Africa 1996), and replacing the previous Parent-Teacher-StudentAssociation (PTSA). The study investigates how the members of a School Governing Body perceive and experience their roles, in an attempt to make a contribution to understanding the nature and implications of education governance policy in South Africa. Central to this exercise is the attempt to understand how the execution of their duties, their practice of both democracy and accountability, and their resolving of tensions and/or differences among parents, teachers and students, impacts upon their school generally and relates both to the Department of Education and other organs of society. The methodology employed in this study includes a review of relevant literature, international and national, followed by a historical overview of education governance in South Africa. The core of the thesis is an interpretive case study of the SGB of one junior secondary school under the auspices of the Department of Education, Culture and Sport, in the South Eastern region of the Eastern Cape Province. The single most important data gathering instrument used was a series of in-depth interviews. The interviewees were the Executive members of the SGB of the school. The major findings of the study were that the SGB was powerful and effective in its area of operation in school governance, despite its lack of skills in the execution of its duties. Many of the difficulties it has encountered can be ascribed to a lack of guidance from the Department of Education. The study thus concludes that whereas the SGB studied represents an important step towards the full democratization of education in general and in this school in particular, its role in school governance can not be described as an unqualified success. However, despite the problems faced by the SGB, its role has made history in the governance of the school. Programmes which the SGB has implemented, such as measures to foster a culture of teaching and learning, have had an important impact on the progress of the school. Finally, the findings of the study indicate that the most important issues to be addressed in respect of the SGB researched are capacity building, communication, cultural understanding and the level of SGB understanding of the Schools Act. The study makes certain recommendations for the attention of SGBs and the Department of Education. These include a well co-ordinated capacity building prograrn to be developed and implemented, that will provide SGBs with access to knowledge of the relevant material and other resources necessary to sustain school governance functions. Because of the limited nature of the study in terms of methodology and constraints of time, the conclusions arrived at cannot and should not be generalized beyond the confines of the study.
- Full Text:
- Date Issued: 1999
- Authors: Lusaseni, Pamella Hombakazi
- Date: 1999
- Subjects: School management and organization -- South Africa School boards -- South Africa Educational leadership School personnel management
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1898 , http://hdl.handle.net/10962/d1006204
- Description: Education in South Africa is currently facing a lot of changes. This study was prompted by one of these changes, the introduction of a School Governing Body (SGB), constituted in terms of the 1996 Schools Act (South Africa 1996), and replacing the previous Parent-Teacher-StudentAssociation (PTSA). The study investigates how the members of a School Governing Body perceive and experience their roles, in an attempt to make a contribution to understanding the nature and implications of education governance policy in South Africa. Central to this exercise is the attempt to understand how the execution of their duties, their practice of both democracy and accountability, and their resolving of tensions and/or differences among parents, teachers and students, impacts upon their school generally and relates both to the Department of Education and other organs of society. The methodology employed in this study includes a review of relevant literature, international and national, followed by a historical overview of education governance in South Africa. The core of the thesis is an interpretive case study of the SGB of one junior secondary school under the auspices of the Department of Education, Culture and Sport, in the South Eastern region of the Eastern Cape Province. The single most important data gathering instrument used was a series of in-depth interviews. The interviewees were the Executive members of the SGB of the school. The major findings of the study were that the SGB was powerful and effective in its area of operation in school governance, despite its lack of skills in the execution of its duties. Many of the difficulties it has encountered can be ascribed to a lack of guidance from the Department of Education. The study thus concludes that whereas the SGB studied represents an important step towards the full democratization of education in general and in this school in particular, its role in school governance can not be described as an unqualified success. However, despite the problems faced by the SGB, its role has made history in the governance of the school. Programmes which the SGB has implemented, such as measures to foster a culture of teaching and learning, have had an important impact on the progress of the school. Finally, the findings of the study indicate that the most important issues to be addressed in respect of the SGB researched are capacity building, communication, cultural understanding and the level of SGB understanding of the Schools Act. The study makes certain recommendations for the attention of SGBs and the Department of Education. These include a well co-ordinated capacity building prograrn to be developed and implemented, that will provide SGBs with access to knowledge of the relevant material and other resources necessary to sustain school governance functions. Because of the limited nature of the study in terms of methodology and constraints of time, the conclusions arrived at cannot and should not be generalized beyond the confines of the study.
- Full Text:
- Date Issued: 1999
Creative misreadings: allegory in Tracey Rose's Ciao Bella
- Authors: Bateman, Genevieve
- Date: 2007
- Subjects: Rose, Tracey, 1974- Artists -- South Africa Women artists -- South Africa Performance artists -- South Africa Women in art
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2473 , http://hdl.handle.net/10962/d1009506
- Description: This thesis will aim to investigate the extent to which Tracey Rose's Ciao Bella can be said to allegorically perform a dialectical enfolding of the dichotomous categories of meaning/nonmeaning; image/text; past/present and original/translation. The dual concepts of performance and performativity will be utilized as a means to explore the notion of interpretation as a meaning-making process and as an engagement between artist, artwork and viewer that is necessarily open-ended and in a state of constant change and flux. Rose's performance of Ciao Bella will be read as one that questions the illusion of unmediated representation by parodying and creatively misreading a multiplicity of visual, textual and musical representations so as to foreground the politics of representation. The representational figure of allegory, as one that defines itself in opposition to the Romantic conception of the unified symbol, will be put to work so as to reveal the ways in which Rose's performance works to critically undermine various positivistic attitudes toward self-identity, gender, race, politics, history, authorial intention and interpretation.
- Full Text:
- Date Issued: 2007
- Authors: Bateman, Genevieve
- Date: 2007
- Subjects: Rose, Tracey, 1974- Artists -- South Africa Women artists -- South Africa Performance artists -- South Africa Women in art
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2473 , http://hdl.handle.net/10962/d1009506
- Description: This thesis will aim to investigate the extent to which Tracey Rose's Ciao Bella can be said to allegorically perform a dialectical enfolding of the dichotomous categories of meaning/nonmeaning; image/text; past/present and original/translation. The dual concepts of performance and performativity will be utilized as a means to explore the notion of interpretation as a meaning-making process and as an engagement between artist, artwork and viewer that is necessarily open-ended and in a state of constant change and flux. Rose's performance of Ciao Bella will be read as one that questions the illusion of unmediated representation by parodying and creatively misreading a multiplicity of visual, textual and musical representations so as to foreground the politics of representation. The representational figure of allegory, as one that defines itself in opposition to the Romantic conception of the unified symbol, will be put to work so as to reveal the ways in which Rose's performance works to critically undermine various positivistic attitudes toward self-identity, gender, race, politics, history, authorial intention and interpretation.
- Full Text:
- Date Issued: 2007
Crumpled hearts
- Authors: Crain, Patricia Ann
- Date: 2014
- Subjects: South African fiction (English) -- 21st century , Creative writing (Higher education) , English language -- Writing , South African fiction (English) -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5984 , http://hdl.handle.net/10962/d1015676
- Description: A middle-aged woman, living in Johannesburg, has an experience which catapults her into changing her life. In the process of confronting her alcoholism, she realizes how patterns of addiction extend to other areas of her life and tries to make sense of the tragic events that have occurred. Her world becomes a different place as she questions everything that she has been taught about relationships, religion, race and her place in society. In the search for answers she uncovers stories about the lives of her parents, grandparents, relatives, friends and acquaintances. Embarking on a journey of discovery and rediscovery through her experiences and those of others, she explores the ways in which the things that she thought she knew defined her behaviour and expression of herself.
- Full Text:
- Date Issued: 2014
- Authors: Crain, Patricia Ann
- Date: 2014
- Subjects: South African fiction (English) -- 21st century , Creative writing (Higher education) , English language -- Writing , South African fiction (English) -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5984 , http://hdl.handle.net/10962/d1015676
- Description: A middle-aged woman, living in Johannesburg, has an experience which catapults her into changing her life. In the process of confronting her alcoholism, she realizes how patterns of addiction extend to other areas of her life and tries to make sense of the tragic events that have occurred. Her world becomes a different place as she questions everything that she has been taught about relationships, religion, race and her place in society. In the search for answers she uncovers stories about the lives of her parents, grandparents, relatives, friends and acquaintances. Embarking on a journey of discovery and rediscovery through her experiences and those of others, she explores the ways in which the things that she thought she knew defined her behaviour and expression of herself.
- Full Text:
- Date Issued: 2014
Development of flexible automotive measurement adaptors for the PQ25 VWSA platform
- Authors: Pretorius, Shaun
- Date: 2009
- Subjects: Automobiles -- Measurement , Optical measurements
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9626 , http://hdl.handle.net/10948/1632 , http://hdl.handle.net/10948/d1011725 , Automobiles -- Measurement , Optical measurements
- Description: The following work describes all knowledge required in the creation of new automotive optical Photogrammetrical adaptors, which allow the user thereof to measure a fully assembled vehicle in its natural position, i.e. on its wheels for the PQ25 platform at Volkswagen of South Africa. The system is the only method available to the manufacturing plant to measure a fully assembled vehicle in this manner. The FlexMess system allows for a quick portable measurement of a vehicle at all stages of Vehicle manufacturing, aligned via the Volkswagen RPS standards. In the first part of the work, the problem of establishing a system capable of measuring the PQ25 platform is achieved by redesigning the PQ24 platform (previous generation Polo) to the new PQ25 vehicle platform. Once the system was redesigned a prototype adaptor system was created. In the second part of the work, the redesigned adaptor system is checked for its accuracy and repeatability. In a statistical analysis of the adaptors ability to measure the reference points needed for alignment of a vehicle, the system is compared to a CMM and verified that the limits fall within the limits of the original FlexMesśs certified accuracy limits. The last part of the work looks at addressing some of the problems of the FlexMess system by creating concepts for an ideal future FlexMess adaptor system.
- Full Text:
- Date Issued: 2009
- Authors: Pretorius, Shaun
- Date: 2009
- Subjects: Automobiles -- Measurement , Optical measurements
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9626 , http://hdl.handle.net/10948/1632 , http://hdl.handle.net/10948/d1011725 , Automobiles -- Measurement , Optical measurements
- Description: The following work describes all knowledge required in the creation of new automotive optical Photogrammetrical adaptors, which allow the user thereof to measure a fully assembled vehicle in its natural position, i.e. on its wheels for the PQ25 platform at Volkswagen of South Africa. The system is the only method available to the manufacturing plant to measure a fully assembled vehicle in this manner. The FlexMess system allows for a quick portable measurement of a vehicle at all stages of Vehicle manufacturing, aligned via the Volkswagen RPS standards. In the first part of the work, the problem of establishing a system capable of measuring the PQ25 platform is achieved by redesigning the PQ24 platform (previous generation Polo) to the new PQ25 vehicle platform. Once the system was redesigned a prototype adaptor system was created. In the second part of the work, the redesigned adaptor system is checked for its accuracy and repeatability. In a statistical analysis of the adaptors ability to measure the reference points needed for alignment of a vehicle, the system is compared to a CMM and verified that the limits fall within the limits of the original FlexMesśs certified accuracy limits. The last part of the work looks at addressing some of the problems of the FlexMess system by creating concepts for an ideal future FlexMess adaptor system.
- Full Text:
- Date Issued: 2009
Effects of vitamin A on tumour and untransformed cells
- Authors: De Villiers, Diane Lynette
- Date: 1988
- Subjects: Vitamin A , Vitamin A in the body , Cancer -- Prevention
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3881 , http://hdl.handle.net/10962/d1001615
- Description: Vitamin A and its chemical analogues (retinoids) are known to play a role in the maintenance and differentiation of epithelial tissue. Retinoids have been shown to inhibit carcinogenesis in a number of tissues in experimental animals and to inhibit the growth of various untransformed and cancer cell lines in vitro. This study investigated the effect of retinyl acetate supplemented at concentrations of 1 μM, 5 μM, 10 μM and 100 μM to in vitro cultured untransformed LLCMK cells, and transformed BL-6 melanoma and human hepatoma cell lines. A small but non-significant effect of vitamin A addition on the growth of the untransformed cells was observed, while substantial inhibition of proliferation of the two tumour cell lines was found. At the cytotoxic level of 100 μM supplemented vitamin A, all three cell lines showed marked inhibition of growth. This led to an electron microscopy study to examine the ultrastructural effect of the vitamin A addition. At the low non-toxic levels of vitamin A addition (1 - 10 μM), no ultrastructural changes were observed in the untransformed cells. However, at a level of 5 μM and 10 μM vitamin A addition in the tumour cells, an increase in the size of suspected lipid droplets was observed. At the cytotoxic level of 100 μM supplemented vitamin A, large lipid droplets were very apparent, as was much cellular degeneration. This effect was more marked in the tumour cells than in the untransformed cells. The lipid nature of the droplets was confirmed by using the lipid stain, Sudan IV. In order to investigate the effect of added vitamin A at the cell surface level, an ELISA system was used to quantify the level of the cell surface glycoprotein, fibronectin, in the culture media. Vitamin A plays an important role in the production of mature fibronectin by participating in the glycosylation of the molecule. This study showed no major effect of added vitamin A on the release of fibronectin into the culture media. This did not, however, exclude the possibility that the vitamin A was involved in the production and enhanced binding of fibronectin to the cell surface, and was possibly also exerting an effect on the availability of fibronectin receptors. Further studies would, however, be required to substantiate such effects of vitamin A supplementation. No single mechanism of action of vitamin A on tumour cell growth inhibition was identified, but the possibility that at least two mechanisms exist, was suggested
- Full Text:
- Date Issued: 1988
- Authors: De Villiers, Diane Lynette
- Date: 1988
- Subjects: Vitamin A , Vitamin A in the body , Cancer -- Prevention
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3881 , http://hdl.handle.net/10962/d1001615
- Description: Vitamin A and its chemical analogues (retinoids) are known to play a role in the maintenance and differentiation of epithelial tissue. Retinoids have been shown to inhibit carcinogenesis in a number of tissues in experimental animals and to inhibit the growth of various untransformed and cancer cell lines in vitro. This study investigated the effect of retinyl acetate supplemented at concentrations of 1 μM, 5 μM, 10 μM and 100 μM to in vitro cultured untransformed LLCMK cells, and transformed BL-6 melanoma and human hepatoma cell lines. A small but non-significant effect of vitamin A addition on the growth of the untransformed cells was observed, while substantial inhibition of proliferation of the two tumour cell lines was found. At the cytotoxic level of 100 μM supplemented vitamin A, all three cell lines showed marked inhibition of growth. This led to an electron microscopy study to examine the ultrastructural effect of the vitamin A addition. At the low non-toxic levels of vitamin A addition (1 - 10 μM), no ultrastructural changes were observed in the untransformed cells. However, at a level of 5 μM and 10 μM vitamin A addition in the tumour cells, an increase in the size of suspected lipid droplets was observed. At the cytotoxic level of 100 μM supplemented vitamin A, large lipid droplets were very apparent, as was much cellular degeneration. This effect was more marked in the tumour cells than in the untransformed cells. The lipid nature of the droplets was confirmed by using the lipid stain, Sudan IV. In order to investigate the effect of added vitamin A at the cell surface level, an ELISA system was used to quantify the level of the cell surface glycoprotein, fibronectin, in the culture media. Vitamin A plays an important role in the production of mature fibronectin by participating in the glycosylation of the molecule. This study showed no major effect of added vitamin A on the release of fibronectin into the culture media. This did not, however, exclude the possibility that the vitamin A was involved in the production and enhanced binding of fibronectin to the cell surface, and was possibly also exerting an effect on the availability of fibronectin receptors. Further studies would, however, be required to substantiate such effects of vitamin A supplementation. No single mechanism of action of vitamin A on tumour cell growth inhibition was identified, but the possibility that at least two mechanisms exist, was suggested
- Full Text:
- Date Issued: 1988
Exploring the challenges of income generating projects funded by the Department of Social Development at Kwa-Nobuhle, Uitenhage, in the Eastern Cape
- Authors: Filita, Unathi Samora
- Date: 2013
- Subjects: Public investments -- South Africa -- Port Elizabeth , Economic development projects -- South Africa -- Port Elizabeth , Poverty -- South Africa -- Port Elizabeth -- Economic conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9191 , http://hdl.handle.net/10948/d1020323
- Description: Income generating projects represent one strategy adopted by the Department of Social Development to alleviate poverty. The purpose of this study is to explore challenges of an income generating project funded by the Department of Social Development in Kwa-Nobuhle, Uitenhage of the Eastern Cape Province of South Africa., A sample of thirty respondents was drawn from ten income generating projects funded by the Department of Social Development. The sampling method of this study was purposive sampling. Data was gathered through semi-structured questionnaires. Related literature has been reviewed that focuses on income generating projects for poverty alleviation. Various recommendations have been made on the findings of the study. The findings of the study indicated the need for regular visits from the officials of the Department, to conduct monitoring and evaluation. Project members also need training on financial management so they cannot mismanage their finances. The research findings indicated clearly that strategies that were used by the Department were not effective enough to achieve desired goals of poverty alleviation.
- Full Text:
- Date Issued: 2013
- Authors: Filita, Unathi Samora
- Date: 2013
- Subjects: Public investments -- South Africa -- Port Elizabeth , Economic development projects -- South Africa -- Port Elizabeth , Poverty -- South Africa -- Port Elizabeth -- Economic conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9191 , http://hdl.handle.net/10948/d1020323
- Description: Income generating projects represent one strategy adopted by the Department of Social Development to alleviate poverty. The purpose of this study is to explore challenges of an income generating project funded by the Department of Social Development in Kwa-Nobuhle, Uitenhage of the Eastern Cape Province of South Africa., A sample of thirty respondents was drawn from ten income generating projects funded by the Department of Social Development. The sampling method of this study was purposive sampling. Data was gathered through semi-structured questionnaires. Related literature has been reviewed that focuses on income generating projects for poverty alleviation. Various recommendations have been made on the findings of the study. The findings of the study indicated the need for regular visits from the officials of the Department, to conduct monitoring and evaluation. Project members also need training on financial management so they cannot mismanage their finances. The research findings indicated clearly that strategies that were used by the Department were not effective enough to achieve desired goals of poverty alleviation.
- Full Text:
- Date Issued: 2013
Exploring the impact of agricultural project and income generation in Uitenhage
- Authors: Kwesaba, Xolelwa
- Date: 2014
- Subjects: Agricultural development projects -- South Africa -- Uitenhage , Community development -- South Africa -- Uitenhage , Economic assistance, Domestic -- South Africa -- Uitenhage
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9234 , http://hdl.handle.net/10948/d1021076
- Description: An income generating project signifies an unemployment strategy and an attempt at upliftment of living standards This study tries to explore the impact of agricultural and income generating projects on poverty alleviation in the Uitenhage area .The research topic tries to establish whether these poverty alleviation projectshave impacted sufficiently and contributed to socio-economic development and eradication of poverty . A sample of 15 respondents involved in an income generating project funded by the Department of Social Development was drawn from 1 Tinarha Agricultural Tourism Initiative. A purposive samplingmethod was used for thisstudy. Data was gathered through semi-structured questionnaires. Related literature that focuses on income generating projects for poverty alleviation has been reviewed. Various recommendations based on the findings of the study have also been made. The findings of the study indicate that the income generation project, has not impacted and contributed significantly to the process of eradicating poverty for the project members. It also indicates that project members were not empowered sufficiently with financial management skills needed to equip them to make substantial profits from their small business enterprises. It also emerged that the members were not able to secure markets for their products. This remains a key challenge for attainingsustainability. The research findings indicated clearly that the strategies that were used by the Departments were not effective enough to achieve the desired goals of poverty alleviation.
- Full Text:
- Date Issued: 2014
- Authors: Kwesaba, Xolelwa
- Date: 2014
- Subjects: Agricultural development projects -- South Africa -- Uitenhage , Community development -- South Africa -- Uitenhage , Economic assistance, Domestic -- South Africa -- Uitenhage
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9234 , http://hdl.handle.net/10948/d1021076
- Description: An income generating project signifies an unemployment strategy and an attempt at upliftment of living standards This study tries to explore the impact of agricultural and income generating projects on poverty alleviation in the Uitenhage area .The research topic tries to establish whether these poverty alleviation projectshave impacted sufficiently and contributed to socio-economic development and eradication of poverty . A sample of 15 respondents involved in an income generating project funded by the Department of Social Development was drawn from 1 Tinarha Agricultural Tourism Initiative. A purposive samplingmethod was used for thisstudy. Data was gathered through semi-structured questionnaires. Related literature that focuses on income generating projects for poverty alleviation has been reviewed. Various recommendations based on the findings of the study have also been made. The findings of the study indicate that the income generation project, has not impacted and contributed significantly to the process of eradicating poverty for the project members. It also indicates that project members were not empowered sufficiently with financial management skills needed to equip them to make substantial profits from their small business enterprises. It also emerged that the members were not able to secure markets for their products. This remains a key challenge for attainingsustainability. The research findings indicated clearly that the strategies that were used by the Departments were not effective enough to achieve the desired goals of poverty alleviation.
- Full Text:
- Date Issued: 2014
Impact of business confidence on private investments in South Africa
- Authors: Madzivire, Venna Wadzanayi
- Date: 2017
- Subjects: Success in business Confidence Investments
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/8910 , vital:33955
- Description: A wide range of theoretical and empirical studies have been carried out on various determinants of private investments in different economies. This dissertation specifically focuses on the impact business confidence on private investments with regards to the South African economy for the period between 1990 and 2014. The private investment sector in South Africa has, to a greater extent contributed to the overall GDP of the economy. Even though business confidence has a considerable impact on private investments, this study also took into consideration other variables that affect the private investment sector such as interest rates, exchange range and GDP To determine short-run and long-run relationships of business confidence on private Investments in South Africa, a vector error correction model was employed. In order to avoid spurious regression, the ADF test and the PP test were used to test for stationarity. Results of the study indicate that private investments are subject to permanent changes because of changes in business confidence. In addition to that, not all variables have a long-term relationship with private investments but business confidence has a significant long run relationship with private investment. After conducting an econometric analysis, results revealed that Business Confidence and Gross Domestic Product have a positive impact on private investments. On the other hand, interest rates and exchange rates have a negative impact on private investments in South Africa. Various policy recommendations were established on both Private Investments and Business Confidence.
- Full Text:
- Date Issued: 2017
- Authors: Madzivire, Venna Wadzanayi
- Date: 2017
- Subjects: Success in business Confidence Investments
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/8910 , vital:33955
- Description: A wide range of theoretical and empirical studies have been carried out on various determinants of private investments in different economies. This dissertation specifically focuses on the impact business confidence on private investments with regards to the South African economy for the period between 1990 and 2014. The private investment sector in South Africa has, to a greater extent contributed to the overall GDP of the economy. Even though business confidence has a considerable impact on private investments, this study also took into consideration other variables that affect the private investment sector such as interest rates, exchange range and GDP To determine short-run and long-run relationships of business confidence on private Investments in South Africa, a vector error correction model was employed. In order to avoid spurious regression, the ADF test and the PP test were used to test for stationarity. Results of the study indicate that private investments are subject to permanent changes because of changes in business confidence. In addition to that, not all variables have a long-term relationship with private investments but business confidence has a significant long run relationship with private investment. After conducting an econometric analysis, results revealed that Business Confidence and Gross Domestic Product have a positive impact on private investments. On the other hand, interest rates and exchange rates have a negative impact on private investments in South Africa. Various policy recommendations were established on both Private Investments and Business Confidence.
- Full Text:
- Date Issued: 2017
Internal fingerprint extraction
- Authors: Darlow, Luke Nicholas
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/2959 , vital:20347
- Description: Fingerprints are a non-invasive biometric that possess significant advantages. However, they are subject to surface erosion and damage; distortion upon scanning; and are vulnerable to fingerprint spoofing. The internal fingerprint exists as the undulations of the papillary junction - an intermediary layer of skin - and provides a solution to these disadvantages. Optical coherence tomography is used to capture the internal fingerprint. A depth profile of the papillary junction throughout the OCT scans is first constructed using fuzzy c-means clustering and a fine-tuning procedure. This information is then used to define localised regions over which to average pixels for the resultant internal fingerprint. When compared to a ground-truth internal fingerprint zone, the internal fingerprint zone detected automatically is within the measured bounds of human error. With a mean- squared-error of 21.3 and structural similarity of 96.4%, the internal fingerprint zone was successfully found and described. The extracted fingerprints exceed their surface counterparts with respect to orientation certainty and NFIQ scores (both of which are respected fingerprint quality assessment criteria). Internal to surface fingerprint correspondence and internal fingerprint cross correspondence were also measured. A larger scanned region is shown to be advantageous as internal fingerprints extracted from these scans have good surface correspondence (75% had at least one true match with a surface counterpart). It is also evidenced that internal fingerprints can constitute a fingerprint database. 96% of the internal fingerprints extracted had at least one corresponding match with another internal fingerprint. When compared to surface fingerprints cropped to match the internal fingerprints’ representative area and locality, the internal fingerprints outperformed these cropped surface counterparts. The internal fingerprint is an attractive biometric solution. This research develops a novel approach to extracting the internal fingerprint and is an asset to the further development of technologies surrounding fingerprint extraction from OCT scans. No earlier work has extracted or tested the internal fingerprint to the degree that this research has.
- Full Text:
- Date Issued: 2016
- Authors: Darlow, Luke Nicholas
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/2959 , vital:20347
- Description: Fingerprints are a non-invasive biometric that possess significant advantages. However, they are subject to surface erosion and damage; distortion upon scanning; and are vulnerable to fingerprint spoofing. The internal fingerprint exists as the undulations of the papillary junction - an intermediary layer of skin - and provides a solution to these disadvantages. Optical coherence tomography is used to capture the internal fingerprint. A depth profile of the papillary junction throughout the OCT scans is first constructed using fuzzy c-means clustering and a fine-tuning procedure. This information is then used to define localised regions over which to average pixels for the resultant internal fingerprint. When compared to a ground-truth internal fingerprint zone, the internal fingerprint zone detected automatically is within the measured bounds of human error. With a mean- squared-error of 21.3 and structural similarity of 96.4%, the internal fingerprint zone was successfully found and described. The extracted fingerprints exceed their surface counterparts with respect to orientation certainty and NFIQ scores (both of which are respected fingerprint quality assessment criteria). Internal to surface fingerprint correspondence and internal fingerprint cross correspondence were also measured. A larger scanned region is shown to be advantageous as internal fingerprints extracted from these scans have good surface correspondence (75% had at least one true match with a surface counterpart). It is also evidenced that internal fingerprints can constitute a fingerprint database. 96% of the internal fingerprints extracted had at least one corresponding match with another internal fingerprint. When compared to surface fingerprints cropped to match the internal fingerprints’ representative area and locality, the internal fingerprints outperformed these cropped surface counterparts. The internal fingerprint is an attractive biometric solution. This research develops a novel approach to extracting the internal fingerprint and is an asset to the further development of technologies surrounding fingerprint extraction from OCT scans. No earlier work has extracted or tested the internal fingerprint to the degree that this research has.
- Full Text:
- Date Issued: 2016