Electrocatalytic activity of symmetric and asymmetric Co(II) and Mn(III) porphyrins in the presence of graphene quantum dots towards the oxidation of hydrazine
- Authors: Jokazi, Mbulelo
- Date: 2022-10-14
- Subjects: Electrocatalysis , Hydrazine , Quantum dots , Graphene , Porphyrins
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/362894 , vital:65372
- Description: The influence of metal porphyrins in electro-oxidation of hydrazine is explored. A series of symmetric and asymmetric porphyrins alone and in the presence of graphene quantum dots (GQDs) are employed in this work. Tetra 4-aminophenyl porphyrin, manganese tetra 4-aminophenyl porphyrin, manganese tetra 4-aminophenyl porphyrin--GQDs, and manganese tetra 4-aminophenyl porphyrin@GQDs are the symmetric porphyrins. The asymmetric porphyrin and composites are 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins, manganese 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins, cobalt 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins, manganese 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins--GQDs, and cobalt 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins--GQDs. These complexes were synthesized and characterized accordingly and applied for electrocatalysis. The electrocatalytic experiments were carried out using glassy carbon electrode and the modification was through drop-dry method. The porphyrin and GQDs synthesized were characterized using UV-Vis spectroscopy, Mass spectrometry, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy and energy dispersive x-ray spectroscopy. The modified electrodes were characterized using cyclic voltammetry and electrochemical Impedance spectroscopy. The introduction of metal ion in the center of the porphyrin improved electrocatalysis. The presence of push-pull substituents in the porphyrin lowered the oxidation potential and improved the catalysis. The presence of GQDs improved catalysis in both symmetric and asymmetric porphyrin compared to individual components. Cobalt porphyrins showed better activity than manganese porphyrin. , Thesis (MSc) -- Faculty of Science, Chemistry, 2022
- Full Text:
- Authors: Jokazi, Mbulelo
- Date: 2022-10-14
- Subjects: Electrocatalysis , Hydrazine , Quantum dots , Graphene , Porphyrins
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/362894 , vital:65372
- Description: The influence of metal porphyrins in electro-oxidation of hydrazine is explored. A series of symmetric and asymmetric porphyrins alone and in the presence of graphene quantum dots (GQDs) are employed in this work. Tetra 4-aminophenyl porphyrin, manganese tetra 4-aminophenyl porphyrin, manganese tetra 4-aminophenyl porphyrin--GQDs, and manganese tetra 4-aminophenyl porphyrin@GQDs are the symmetric porphyrins. The asymmetric porphyrin and composites are 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins, manganese 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins, cobalt 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins, manganese 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins--GQDs, and cobalt 5, 10, 15-tris(aminophenyl)-20-(4-carboxyphenyl) porphyrins--GQDs. These complexes were synthesized and characterized accordingly and applied for electrocatalysis. The electrocatalytic experiments were carried out using glassy carbon electrode and the modification was through drop-dry method. The porphyrin and GQDs synthesized were characterized using UV-Vis spectroscopy, Mass spectrometry, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy and energy dispersive x-ray spectroscopy. The modified electrodes were characterized using cyclic voltammetry and electrochemical Impedance spectroscopy. The introduction of metal ion in the center of the porphyrin improved electrocatalysis. The presence of push-pull substituents in the porphyrin lowered the oxidation potential and improved the catalysis. The presence of GQDs improved catalysis in both symmetric and asymmetric porphyrin compared to individual components. Cobalt porphyrins showed better activity than manganese porphyrin. , Thesis (MSc) -- Faculty of Science, Chemistry, 2022
- Full Text:
Elele nje usathetha: Ukukhapha as an expression of amaXhosa language world-sense
- Authors: Dana, Zikho
- Date: 2022-10-14
- Subjects: Xhosa language Discourse analysis , Guides (Spiritualism) , Grief Religious aspects , Historical linguistics , Xhosa language Religious aspects , Xhosa (African people) Death , Death Religious aspects
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/406309 , vital:70257
- Description: This study examines ukukhapha as an expression of amaXhosa language world-sense. Firstly, it examines how ukukhapha as a rite of passage to accompany the spirit of the deceased from the physical realm into the spiritual realm maintains the nexus between the living and the dead. Secondly, it explores ukukhapha as a ritual of collective mourning. Both dimensions of the study are pursued using language as a point of departure. This study draws on four key texts written across different times in history, namely: Intlalo kaXhosa (The Social Life of amaXhosa) by Tiyo Burnside (TB) Soga (1974); the three volume Greater Dictionary of isiXhosa (1989, 2003 and 2006); Nokuzola Mndende’s (2002) PhD thesis entitled: Signifying practices: AmaXhosa ritual speech; and Khaya Dlanga’s (2015) memoire: To Quote Myself. This thesis examines ukukhapha in the context of death to establish how amaXhosa speak about death and how this shapes their understanding and its practice. Discourse analysis is employed to clarify some practices and examples of ukukhapha. It’s also used to trace the evolution of ukukhapha over time in isiXhosa. It is utilized as a reservoir of knowledge epitomizing the world-sense of amaXhosa rather than solely as a means of communication. This study reveals that while ukukhapha as a ritual slaughtering of an ox to accompany the deceased is found in literature, its examination as a practice of communal and collective grief is scanty. The four key texts studied in this thesis reveal that ukukhapha goes beyond a mere ritual slaughtering of a sacrificial beast to accompany the spirit of the deceased to the ancestral realm. It is a practice that has allowed amaXhosa to collectively grief. Furthermore, it has provided the bereaved various forms of support which are pivotal in maintaining and strengthening kinship and communal ties among the living. This study further reveals that for the Africans in general, and for amaXhosa in particular, death is not the end of life. It is a continuation of life where the deceased morphs and graduates to an ancestor who joins a larger community of ancestors who act as intermediaries between the living and uMdali, the Creator. The findings demonstrate that through ukukhapha, there is no bifurcation between gender and age, rather they complement each other as the successful execution of the mourning period and farewell of a loved one is dependent on the roles played by both women and men respectively. , Olu phando luceba ukuphonononga ukukhapha njengendlela yokuphila equlathwe kulwimi lwamaXhosa. Okokuqala, luzakuphanda indlela ukukhapha njengesiko lokukhapha umphefumlo womfi ukusukela kwelenyama ukuya kwelemimoya kugcina ngayo ubudlelwane phakathi kwabaphilayo nabaleli ukuthula. Okwesibini, luzakuphanda ukukhapha njengesiko lokuzila ndawoni nye. Zombini ezi nkalo zizakuvelelwa ngokugxila kulwimi. Olu phando lucaphula kwimibhalo emine engundoqo kumaxesha ohlukileyo kwimbali, iquka: Intlalo kaXhosa owabhalwa nguTiyo Burnside Soga (ngowe1974); isichazi-magama esinemiqulu emithathu iThe Greater Dictionary of isiXhosa (ngowama-1989, owama-2003 nowama-2006); ithisisi yePhD kaNokuzola Mndende (ngowama-2002) ebizwa Signifying practices: amaXhosa ritual speech; nencwadi engunomalisa wobom, ebhalwe nguKhaya Dlanga (ngowama-2015) ebizwa To Quote Myself. Le thisisi isebenzisa ukukhapha kwilixa lokufa ukuphanda indlela amaXhosa athetha ngkufa, nokuba le ndlela yokuthetha iyichaphazela njani indlela abakuqonda ngayo ukufa nendlela abakhaphana ngayo. IDiscourse Analysis isetyenziswa njengesixhobo sokucacisa ukukhapha. Iphinde isetyenziswe ukunika imizekelo yeli siko nendlela yokuphila kwakunye nendlela ukukhapha kutshintshe ngayo ekuhambeni kwexesha kulwimi lwesiXhosa njengokuba sizakusetyenziswa njengovimba wolwazi, endaweni yokusetyenziswa njengesixhobo sonxibelelwano kuphela. Olu phando lubonisa ukuba njengokuba ukukhapha njengesiko lokuphalaza igazi lenkomo ukukhapha umfi kubhaliwe ngako kuncwadi, indlela abaphilayo enyameni abakhaphana ngayo iyasilela kuncwadi. Le mibhalo mine echongiweyo nephononongiweyo kolu phando ivelisa ukuba ukukhapha akuphelelanga ekuphalazeni igazi lenkomo kuphela njengesiko lokukhapha umfi ukuze awelele kweleminyanya, yindlela eyavumela amaXhosa ukuba azile ngemanyano apho uluntu luxhasa abafelweyo ngeendlela ezahlukeneyo ezithi zomeleze imanyano phakathi kwabazalanayo noluntu lwabaphilayo. Olu phando lutyhila into yokuba kumaAfrika jikelele, ingakumbi amaXhosa, ukufa ayikuko ukuphela kobom, nto nje luhambo olugqithisa umfi kubom obulandelayo apho ongeza kwinani kwelezinyanya apho izinyanya zilikhonco phakathi koMdali nabaphilayo. Iziphumo ngokukhapha zibonisa ukuba akukho ukuchasana phakathi kwesini neminyaka, nto nje, le miba mibini iyathungelana ekuncediseni nasekuqinisekiseni ukuba abafazi namadoda benza iindima zabo ngokufanelekileyo ekuqinisekiseni ukuba ixesha lezila nokubeka umfi kwikhaya lakhe lokugqibela ziyimpumelelo. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2022
- Full Text:
- Authors: Dana, Zikho
- Date: 2022-10-14
- Subjects: Xhosa language Discourse analysis , Guides (Spiritualism) , Grief Religious aspects , Historical linguistics , Xhosa language Religious aspects , Xhosa (African people) Death , Death Religious aspects
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/406309 , vital:70257
- Description: This study examines ukukhapha as an expression of amaXhosa language world-sense. Firstly, it examines how ukukhapha as a rite of passage to accompany the spirit of the deceased from the physical realm into the spiritual realm maintains the nexus between the living and the dead. Secondly, it explores ukukhapha as a ritual of collective mourning. Both dimensions of the study are pursued using language as a point of departure. This study draws on four key texts written across different times in history, namely: Intlalo kaXhosa (The Social Life of amaXhosa) by Tiyo Burnside (TB) Soga (1974); the three volume Greater Dictionary of isiXhosa (1989, 2003 and 2006); Nokuzola Mndende’s (2002) PhD thesis entitled: Signifying practices: AmaXhosa ritual speech; and Khaya Dlanga’s (2015) memoire: To Quote Myself. This thesis examines ukukhapha in the context of death to establish how amaXhosa speak about death and how this shapes their understanding and its practice. Discourse analysis is employed to clarify some practices and examples of ukukhapha. It’s also used to trace the evolution of ukukhapha over time in isiXhosa. It is utilized as a reservoir of knowledge epitomizing the world-sense of amaXhosa rather than solely as a means of communication. This study reveals that while ukukhapha as a ritual slaughtering of an ox to accompany the deceased is found in literature, its examination as a practice of communal and collective grief is scanty. The four key texts studied in this thesis reveal that ukukhapha goes beyond a mere ritual slaughtering of a sacrificial beast to accompany the spirit of the deceased to the ancestral realm. It is a practice that has allowed amaXhosa to collectively grief. Furthermore, it has provided the bereaved various forms of support which are pivotal in maintaining and strengthening kinship and communal ties among the living. This study further reveals that for the Africans in general, and for amaXhosa in particular, death is not the end of life. It is a continuation of life where the deceased morphs and graduates to an ancestor who joins a larger community of ancestors who act as intermediaries between the living and uMdali, the Creator. The findings demonstrate that through ukukhapha, there is no bifurcation between gender and age, rather they complement each other as the successful execution of the mourning period and farewell of a loved one is dependent on the roles played by both women and men respectively. , Olu phando luceba ukuphonononga ukukhapha njengendlela yokuphila equlathwe kulwimi lwamaXhosa. Okokuqala, luzakuphanda indlela ukukhapha njengesiko lokukhapha umphefumlo womfi ukusukela kwelenyama ukuya kwelemimoya kugcina ngayo ubudlelwane phakathi kwabaphilayo nabaleli ukuthula. Okwesibini, luzakuphanda ukukhapha njengesiko lokuzila ndawoni nye. Zombini ezi nkalo zizakuvelelwa ngokugxila kulwimi. Olu phando lucaphula kwimibhalo emine engundoqo kumaxesha ohlukileyo kwimbali, iquka: Intlalo kaXhosa owabhalwa nguTiyo Burnside Soga (ngowe1974); isichazi-magama esinemiqulu emithathu iThe Greater Dictionary of isiXhosa (ngowama-1989, owama-2003 nowama-2006); ithisisi yePhD kaNokuzola Mndende (ngowama-2002) ebizwa Signifying practices: amaXhosa ritual speech; nencwadi engunomalisa wobom, ebhalwe nguKhaya Dlanga (ngowama-2015) ebizwa To Quote Myself. Le thisisi isebenzisa ukukhapha kwilixa lokufa ukuphanda indlela amaXhosa athetha ngkufa, nokuba le ndlela yokuthetha iyichaphazela njani indlela abakuqonda ngayo ukufa nendlela abakhaphana ngayo. IDiscourse Analysis isetyenziswa njengesixhobo sokucacisa ukukhapha. Iphinde isetyenziswe ukunika imizekelo yeli siko nendlela yokuphila kwakunye nendlela ukukhapha kutshintshe ngayo ekuhambeni kwexesha kulwimi lwesiXhosa njengokuba sizakusetyenziswa njengovimba wolwazi, endaweni yokusetyenziswa njengesixhobo sonxibelelwano kuphela. Olu phando lubonisa ukuba njengokuba ukukhapha njengesiko lokuphalaza igazi lenkomo ukukhapha umfi kubhaliwe ngako kuncwadi, indlela abaphilayo enyameni abakhaphana ngayo iyasilela kuncwadi. Le mibhalo mine echongiweyo nephononongiweyo kolu phando ivelisa ukuba ukukhapha akuphelelanga ekuphalazeni igazi lenkomo kuphela njengesiko lokukhapha umfi ukuze awelele kweleminyanya, yindlela eyavumela amaXhosa ukuba azile ngemanyano apho uluntu luxhasa abafelweyo ngeendlela ezahlukeneyo ezithi zomeleze imanyano phakathi kwabazalanayo noluntu lwabaphilayo. Olu phando lutyhila into yokuba kumaAfrika jikelele, ingakumbi amaXhosa, ukufa ayikuko ukuphela kobom, nto nje luhambo olugqithisa umfi kubom obulandelayo apho ongeza kwinani kwelezinyanya apho izinyanya zilikhonco phakathi koMdali nabaphilayo. Iziphumo ngokukhapha zibonisa ukuba akukho ukuchasana phakathi kwesini neminyaka, nto nje, le miba mibini iyathungelana ekuncediseni nasekuqinisekiseni ukuba abafazi namadoda benza iindima zabo ngokufanelekileyo ekuqinisekiseni ukuba ixesha lezila nokubeka umfi kwikhaya lakhe lokugqibela ziyimpumelelo. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2022
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Empty adjectives and excessive intensifiers, or savvy discourse moves? A feminist critical discourse study of gender-based differences in the discourse of businesspeople on LinkedIn
- Authors: Schmauss, Lindsay Susannah
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/425111 , vital:72211
- Description: This Feminist Critical Discourse Analysis (FCDA) examines the use of ‘empty’ adjectives and the equative intensifier so in discourse on LinkedIn, a social network service (SNS) for businesspeople and professionals. These linguistic features soften the impact of what is said in ways that can conform with politeness norms that one should not impose a point of view but can also be negatively construed as weak, uncertain and unclear. The North American sociolinguist, Robin Tolmach Lakoff (1973, 1975, 2004), first associated these linguistic markers with a feminine register in her seminal work, Language and Women’s Place, arguing that there is a social expectation that women talk like a lady and follow politeness conventions, while the speech of men is not similarly constrained. That women are socially conditioned to speak in ways that can undermine their clarity and assertiveness would present a particular dilemma in the business context, where clear, direct and confident communication is valued. This corpus-based study explores the dilemma in the context of LinkedIn where the linguistic behaviour of cisgender women indeed showed evidence of their struggle between conflicting impulses to talk like a lady and a desire to be taken seriously as businesspeople. While the examined features mainly appeared in the discourse of women, it was interesting to note men making use of ‘empty’ adjectives and so in communication contexts where the goal appeared to be relationship-building. As notions of business leadership are evolving to value organisational leadership more, this suggests that linguistic devices that have traditionally been associated more with the communal conversation of the stereotypical ‘woman’ appear to be gaining wider acceptance and relevance, although in domains orientated towards the “soft skill” of building relationships, rather than the “hard work” of business. While the value talking like a lady may be shifting, language that is the opposite of talking like a lady seems to remain the language of serious talk, and the kind of gender-based linguistic discrimination first theorised by Lakoff seems thus to persist, also in the sphere of business discourse. , Thesis (MA) -- Faculty of Humanities, Linguistics and Applied Language Studies, 2023
- Full Text:
- Authors: Schmauss, Lindsay Susannah
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/425111 , vital:72211
- Description: This Feminist Critical Discourse Analysis (FCDA) examines the use of ‘empty’ adjectives and the equative intensifier so in discourse on LinkedIn, a social network service (SNS) for businesspeople and professionals. These linguistic features soften the impact of what is said in ways that can conform with politeness norms that one should not impose a point of view but can also be negatively construed as weak, uncertain and unclear. The North American sociolinguist, Robin Tolmach Lakoff (1973, 1975, 2004), first associated these linguistic markers with a feminine register in her seminal work, Language and Women’s Place, arguing that there is a social expectation that women talk like a lady and follow politeness conventions, while the speech of men is not similarly constrained. That women are socially conditioned to speak in ways that can undermine their clarity and assertiveness would present a particular dilemma in the business context, where clear, direct and confident communication is valued. This corpus-based study explores the dilemma in the context of LinkedIn where the linguistic behaviour of cisgender women indeed showed evidence of their struggle between conflicting impulses to talk like a lady and a desire to be taken seriously as businesspeople. While the examined features mainly appeared in the discourse of women, it was interesting to note men making use of ‘empty’ adjectives and so in communication contexts where the goal appeared to be relationship-building. As notions of business leadership are evolving to value organisational leadership more, this suggests that linguistic devices that have traditionally been associated more with the communal conversation of the stereotypical ‘woman’ appear to be gaining wider acceptance and relevance, although in domains orientated towards the “soft skill” of building relationships, rather than the “hard work” of business. While the value talking like a lady may be shifting, language that is the opposite of talking like a lady seems to remain the language of serious talk, and the kind of gender-based linguistic discrimination first theorised by Lakoff seems thus to persist, also in the sphere of business discourse. , Thesis (MA) -- Faculty of Humanities, Linguistics and Applied Language Studies, 2023
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Enforced sojourn: Zimbabwean dispensation, special and exemption permits
- Authors: Maziyanhanga, Zvikomborero
- Date: 2023-03-30
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/408913 , vital:70537
- Description: This thesis investigates Zimbabwean’s immigration to South Africa. Zimbabwean’s immigration to South Africa dates back to the early 2000s. This thesis uses a combination of theories to interrogate and discuss the Zimbabwe special permits and some of the post-apartheid government’s amendments to the South African Citizenship Act and other immigration policies. Some of the theories that theoretically underpin this research project’s methodology include Marxism, Pan-Africanism, Liberalism and culture-based theories. This thesis interrogates the discursive strategies these permits draw on to frame and understand Zimbabwean immigrants in South Africa. This study has found that these permits use similar operating logic as the White South African governments used the migrant labour system to exploit Blacks from all of Southern Africa in the 20th century. For instance, the migrant labour system used during apartheid made all Blacks in South Africa “guest workers” who could be deported at the government’s whim. The apartheid government used racist pass laws to regulate the movement of Black people in South Africa, whereas the post-apartheid government uses Zimbabwean special permits to regulate the movement of Zimbabweans in South Africa. The pass laws were fundamentally racist, and their ultimate objective was to reinforce the idea of White citizenship, whereas the Zimbabwe special permits are not racist. Their colonial similarity, however, lies in how they make Zimbabwean migrants perpetual migrants in South Africa and the various ways in which they cast Zimbabweans as not deserving of South African citizenship. These special permits force Zimbabwe migrants to become “guest workers” who build the post-apartheid economy and then return home when they are no longer “useful” to the economy. This thesis concludes that the post-apartheid Zimbabwe special permits achieve analogous objectives. , Thesis (MA) -- Faculty of Humanities, Political and International Studies, 2023
- Full Text:
- Authors: Maziyanhanga, Zvikomborero
- Date: 2023-03-30
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/408913 , vital:70537
- Description: This thesis investigates Zimbabwean’s immigration to South Africa. Zimbabwean’s immigration to South Africa dates back to the early 2000s. This thesis uses a combination of theories to interrogate and discuss the Zimbabwe special permits and some of the post-apartheid government’s amendments to the South African Citizenship Act and other immigration policies. Some of the theories that theoretically underpin this research project’s methodology include Marxism, Pan-Africanism, Liberalism and culture-based theories. This thesis interrogates the discursive strategies these permits draw on to frame and understand Zimbabwean immigrants in South Africa. This study has found that these permits use similar operating logic as the White South African governments used the migrant labour system to exploit Blacks from all of Southern Africa in the 20th century. For instance, the migrant labour system used during apartheid made all Blacks in South Africa “guest workers” who could be deported at the government’s whim. The apartheid government used racist pass laws to regulate the movement of Black people in South Africa, whereas the post-apartheid government uses Zimbabwean special permits to regulate the movement of Zimbabweans in South Africa. The pass laws were fundamentally racist, and their ultimate objective was to reinforce the idea of White citizenship, whereas the Zimbabwe special permits are not racist. Their colonial similarity, however, lies in how they make Zimbabwean migrants perpetual migrants in South Africa and the various ways in which they cast Zimbabweans as not deserving of South African citizenship. These special permits force Zimbabwe migrants to become “guest workers” who build the post-apartheid economy and then return home when they are no longer “useful” to the economy. This thesis concludes that the post-apartheid Zimbabwe special permits achieve analogous objectives. , Thesis (MA) -- Faculty of Humanities, Political and International Studies, 2023
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English additional language student teachers’ development of oral strategic competence and confidence
- Authors: Meyers, Rozanne Elanore
- Date: 2022-04-08
- Subjects: Student teaching South Africa , Communicative competence South Africa , Oral communication , Native language and education , Language arts , Verbal ability , Multilingual education
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/263613 , vital:53643
- Description: This case study sought to understand how oral strategic and discourse competence and confidence developed in student teachers using English, their additional language, firstly as a tool of learning and secondly, as a medium of instruction in education environments. Within the broad qualitative approach an interpretive framework was adopted using multiple data collection tools. This was in order to privilege detailed accounts of participants’ experiences. Namely, unstructured interviews, drawings, observational checklists, and selfassessment questionnaires. Participants’ oral strategic and discourse competence were assessed using an observation checklist as they presented micro-teaching lessons. Additionally, participants completed a self-assessment questionnaire, reflecting on their oral competence after conducting their micro-teaching lessons. These perceptions were confirmed through a discussion of drawings that illustrated how they perceived themselves during lectures when they had to use English during oral interaction with lecturers and fellow students. Finally, unstructured interviews were conducted after participants completed their micro-teaching lessons and after participants had completed their drawings. The raw data from the four tools were analysed using a thematic approach. Main themes and categories were analysed and discussed to provide answers to the research questions. Data correlated the attitude of participants towards English and their level of oral confidence and competence. The main findings were that students were motivated to develop their oral English competence because they believed it was an important skill for teachers to possess. This motivation also proved to be a leading factor in participants’ competence despite the negative emotions they identified during spoken exchanges. Furthermore, the analysis found that collaborating with fellow students in making meaning of oral communication during lectures, increased students’ oral competence and their confidence because they were communicating in smaller groups. However, in certain situations, collaborating with students also decreased their confidence. Findings indicated that reciprocal facial expressions and the body language of those who engaged orally with the student teachers, increased their oral confidence as it served as an indication to them that they were understood. Based on these findings, recommendations are made regarding interactions during lectures for teacher training programmes in Higher Education in South Africa, for lecturers and lecturing practices, and curriculum designers in the South African Department of Education. , Thesis (MEd) -- Faculty of Education, Education, 2022
- Full Text:
- Authors: Meyers, Rozanne Elanore
- Date: 2022-04-08
- Subjects: Student teaching South Africa , Communicative competence South Africa , Oral communication , Native language and education , Language arts , Verbal ability , Multilingual education
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/263613 , vital:53643
- Description: This case study sought to understand how oral strategic and discourse competence and confidence developed in student teachers using English, their additional language, firstly as a tool of learning and secondly, as a medium of instruction in education environments. Within the broad qualitative approach an interpretive framework was adopted using multiple data collection tools. This was in order to privilege detailed accounts of participants’ experiences. Namely, unstructured interviews, drawings, observational checklists, and selfassessment questionnaires. Participants’ oral strategic and discourse competence were assessed using an observation checklist as they presented micro-teaching lessons. Additionally, participants completed a self-assessment questionnaire, reflecting on their oral competence after conducting their micro-teaching lessons. These perceptions were confirmed through a discussion of drawings that illustrated how they perceived themselves during lectures when they had to use English during oral interaction with lecturers and fellow students. Finally, unstructured interviews were conducted after participants completed their micro-teaching lessons and after participants had completed their drawings. The raw data from the four tools were analysed using a thematic approach. Main themes and categories were analysed and discussed to provide answers to the research questions. Data correlated the attitude of participants towards English and their level of oral confidence and competence. The main findings were that students were motivated to develop their oral English competence because they believed it was an important skill for teachers to possess. This motivation also proved to be a leading factor in participants’ competence despite the negative emotions they identified during spoken exchanges. Furthermore, the analysis found that collaborating with fellow students in making meaning of oral communication during lectures, increased students’ oral competence and their confidence because they were communicating in smaller groups. However, in certain situations, collaborating with students also decreased their confidence. Findings indicated that reciprocal facial expressions and the body language of those who engaged orally with the student teachers, increased their oral confidence as it served as an indication to them that they were understood. Based on these findings, recommendations are made regarding interactions during lectures for teacher training programmes in Higher Education in South Africa, for lecturers and lecturing practices, and curriculum designers in the South African Department of Education. , Thesis (MEd) -- Faculty of Education, Education, 2022
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Enhancement of the electrocatalytic activity of phthalocyanines through the reduction in symmetry and conjugation to detonation nanodiamonds
- Authors: Ncwane, Lunathi
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424541 , vital:72162
- Description: This thesis reports on the synthesis of novel phthalocynines tetrakis[(benzo[d]thiazol-2ylthio)phthalocyaninato]cobalt(II)chloride (complex 1) and tris(2-(ethylthio)benzo[d]thiazole)2-(phthalocyanine-9-ylthio)propionate cobalt(II) chloride (complex 2). The complexes are combined with DNDs via different techniques such as π-π stacking, covalent linkage and sequential modification on glassy carbon electrode. The synthesized MPcs and conjugates were characterized using UV-visible, mass, Fourier transform infrared, and Raman spectroscopies as well as transmission electron microscopy and dynamic light scattering. Combining MPcs with DNDs sought to improve electrooxidation of hydrazine. The electrochemical studies were conducted using cyclic voltammetry, chronocoloumetry, electrochemical impedance spectroscopy and chronoamperometry. Hydrazine was utilized as an analyte of interest, due to its mutagenic and carcinogenic effects. Glassy carbon electrodes (GCE) were modified using drop and dry method. The conjugation via covalent linkage proved to be the best way of enhancing electrocatalytic properties. Since it performed better in terms of limit of detection (0.33 μM), even though catalytic rate and sensitivity are not the highest. , Thesis (MSc) -- Faculty of Science, Chemistry, 2023
- Full Text:
- Authors: Ncwane, Lunathi
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424541 , vital:72162
- Description: This thesis reports on the synthesis of novel phthalocynines tetrakis[(benzo[d]thiazol-2ylthio)phthalocyaninato]cobalt(II)chloride (complex 1) and tris(2-(ethylthio)benzo[d]thiazole)2-(phthalocyanine-9-ylthio)propionate cobalt(II) chloride (complex 2). The complexes are combined with DNDs via different techniques such as π-π stacking, covalent linkage and sequential modification on glassy carbon electrode. The synthesized MPcs and conjugates were characterized using UV-visible, mass, Fourier transform infrared, and Raman spectroscopies as well as transmission electron microscopy and dynamic light scattering. Combining MPcs with DNDs sought to improve electrooxidation of hydrazine. The electrochemical studies were conducted using cyclic voltammetry, chronocoloumetry, electrochemical impedance spectroscopy and chronoamperometry. Hydrazine was utilized as an analyte of interest, due to its mutagenic and carcinogenic effects. Glassy carbon electrodes (GCE) were modified using drop and dry method. The conjugation via covalent linkage proved to be the best way of enhancing electrocatalytic properties. Since it performed better in terms of limit of detection (0.33 μM), even though catalytic rate and sensitivity are not the highest. , Thesis (MSc) -- Faculty of Science, Chemistry, 2023
- Full Text:
Enhancing the use of large-scale assessment data in South Africa: Multidimensional Item Response Theory
- Authors: Lahoud, Tamlyn Ann
- Date: 2023-03-29
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/422389 , vital:71938
- Description: This research aims to enhance the use of large-scale assessment data in South Africa by evaluating assessment validity by means of multidimensional item response theory and its associated statistical techniques, which have been severely underutilised. Data from the 2014 administration of the grade 6 Mathematics annual national assessment was used in this study and all analyses were conducted using the mirt package in R. A two parameter logistic item response theory model was developed which indicated a clear alignment between the model parameters and difficulty specifications of the test. The test was found to favour learners within the central band on the ability scale. An exploratory five dimensional item response theory model was then developed to investigate the alignment with the test specifications as evidence for construct validity. Significant discrepancies between the factor structure and the specifications of the test were identified. Notably, the results suggest that some items measured an ability that was not purely mathematical, such as reading ability, which would distort the test’s representation of Mathematics ability, disadvantage learners with lower English literacy, and reduce the construct validity of the test. Further validity evidence was obtained by differential item functioning analyses which revealed that fourteen items function differently for learners from different provinces. Although possible reasons for the presence of differential item functioning among provinces were not discussed, its presence provided sufficient evidence against the validity of the test. In conclusion, multidimensional item response theory provided an effective and rigorous approach to establishing the validity of a large-scale assessment. To avoid the pitfalls of the annual national assessments, it is recommended that this multidimensional item and differential item functioning techniques are utilised for the development and evaluation of future national assessment instruments in South Africa. , Thesis (MSc) -- Faculty of Science, Statistics, 2023
- Full Text:
- Authors: Lahoud, Tamlyn Ann
- Date: 2023-03-29
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/422389 , vital:71938
- Description: This research aims to enhance the use of large-scale assessment data in South Africa by evaluating assessment validity by means of multidimensional item response theory and its associated statistical techniques, which have been severely underutilised. Data from the 2014 administration of the grade 6 Mathematics annual national assessment was used in this study and all analyses were conducted using the mirt package in R. A two parameter logistic item response theory model was developed which indicated a clear alignment between the model parameters and difficulty specifications of the test. The test was found to favour learners within the central band on the ability scale. An exploratory five dimensional item response theory model was then developed to investigate the alignment with the test specifications as evidence for construct validity. Significant discrepancies between the factor structure and the specifications of the test were identified. Notably, the results suggest that some items measured an ability that was not purely mathematical, such as reading ability, which would distort the test’s representation of Mathematics ability, disadvantage learners with lower English literacy, and reduce the construct validity of the test. Further validity evidence was obtained by differential item functioning analyses which revealed that fourteen items function differently for learners from different provinces. Although possible reasons for the presence of differential item functioning among provinces were not discussed, its presence provided sufficient evidence against the validity of the test. In conclusion, multidimensional item response theory provided an effective and rigorous approach to establishing the validity of a large-scale assessment. To avoid the pitfalls of the annual national assessments, it is recommended that this multidimensional item and differential item functioning techniques are utilised for the development and evaluation of future national assessment instruments in South Africa. , Thesis (MSc) -- Faculty of Science, Statistics, 2023
- Full Text:
Enteric microbial responses to host hyperthermia in southern African insectivorous bats: a test of thermal co-adaptation
- Authors: Hunter, Amy Alison
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424391 , vital:72149
- Description: Embargoed. Expected release date 2025. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2023
- Full Text:
- Authors: Hunter, Amy Alison
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424391 , vital:72149
- Description: Embargoed. Expected release date 2025. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2023
- Full Text:
Esibelekweni: Ingqokelela Yemibongo ngesiXhosa nangesiNgesi
- Authors: Busakwe, Yenzokuhle
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English , Xhosa
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424917 , vital:72193
- Description: My thesis is a collection of poems that is written in isiXhosa and English. It explores African spirituality, my relationship with God, heartache from romantic and platonic relationships. I make use of dual languages because some themes that I write about such as African spirituality I find words that capture their truest emotion in my Xhosa vocabulary, and I cannot find them in English. My poems use the narrative form because it allows me to tell stories through poetry without having to commit my writing to musicality or rhyming that a lyric poetry normally has. My work is shaped by writers such as Kate Beinhemer, Mangaliso Buzani, Amy Saul Zerby, Nontsizi Mgqwethio, Simphiwe Nolutshungu and Oiu Miaojin. Buzani makes use of images and few lines in his writing but still manages to capture a story with brevity. Saul-Zerby makes use of text lingo in some of her poems, and I make use of it to close a gap that I have identified with the books that I was reading that are all written in a formal and serious format. Mgqwetho’s poems explore Christianity and African Spirituality which is one of the subjects that my work is exploring too but in a manner that differs. I talk about how they have been my guidance instead of praising their powers like Nontsizi normally does in her poems. Simphiwe Nolutshungu’s poems has influenced the structure of my poems. Fairy tales written by writers like Kate helps my writing to bring to life issues that sound too dreamy to be true but have manifested as visions and memories that I cannot wipe out from my conscience. Oiu Miaojin’s novel “Last words from Montmantre” I am fascinated by how the writer detail emotions such as vulnerability and heartbreak in his storytelling. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2023
- Full Text:
- Authors: Busakwe, Yenzokuhle
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English , Xhosa
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424917 , vital:72193
- Description: My thesis is a collection of poems that is written in isiXhosa and English. It explores African spirituality, my relationship with God, heartache from romantic and platonic relationships. I make use of dual languages because some themes that I write about such as African spirituality I find words that capture their truest emotion in my Xhosa vocabulary, and I cannot find them in English. My poems use the narrative form because it allows me to tell stories through poetry without having to commit my writing to musicality or rhyming that a lyric poetry normally has. My work is shaped by writers such as Kate Beinhemer, Mangaliso Buzani, Amy Saul Zerby, Nontsizi Mgqwethio, Simphiwe Nolutshungu and Oiu Miaojin. Buzani makes use of images and few lines in his writing but still manages to capture a story with brevity. Saul-Zerby makes use of text lingo in some of her poems, and I make use of it to close a gap that I have identified with the books that I was reading that are all written in a formal and serious format. Mgqwetho’s poems explore Christianity and African Spirituality which is one of the subjects that my work is exploring too but in a manner that differs. I talk about how they have been my guidance instead of praising their powers like Nontsizi normally does in her poems. Simphiwe Nolutshungu’s poems has influenced the structure of my poems. Fairy tales written by writers like Kate helps my writing to bring to life issues that sound too dreamy to be true but have manifested as visions and memories that I cannot wipe out from my conscience. Oiu Miaojin’s novel “Last words from Montmantre” I am fascinated by how the writer detail emotions such as vulnerability and heartbreak in his storytelling. , Thesis (MA) -- Faculty of Humanities, School of Languages and Literatures, 2023
- Full Text:
Evaluating liberal and hybrid approaches to peacebuilding : the case of Sierra Leone
- Authors: Sitole, Sivuyile
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/425278 , vital:72225
- Description: This thesis explores liberal and hybrid approaches to peacebuilding and their decisiveness in building sustainable peace in Sierra Leone. Contemporary peacebuilding interventions have been dominated by liberal peacebuilding, also known as liberal state-building. Post-conflict states have been transforming to replicate liberal states due to assumptions of liberal states being more peaceful and less likely to fall into conflict again than non-liberal states. There is growing criticism regarding the effectiveness of this approach as its initiatives have not always translated to sustainable peace. This failure is attributed to its minimal inclusion or exclusion of local actors in the peacebuilding process as well as its application of standardised approaches in complex contexts. In response to these shortfalls, international peacebuilding scholars propose an alternative approach that would combine the liberal and the local to produce a hybrid peace, which is inclusive and context-specific. This thesis tests the decisiveness of these approaches by examining the successful peacebuilding process in Sierra Leone. It then concludes that the peacebuilding interventions of Sierra Leone demonstrate how liberal peacebuilding initiatives have little or limited success when conducted without the inclusion of local actors. However, when local actors are included in the peace-building process to make meaningful contributions (hybrid peacebuilding), peacebuilding initiatives can have a much larger impact on society. , Thesis (MA) -- Faculty of Humanities, Political and International Studies, 2023
- Full Text:
- Authors: Sitole, Sivuyile
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/425278 , vital:72225
- Description: This thesis explores liberal and hybrid approaches to peacebuilding and their decisiveness in building sustainable peace in Sierra Leone. Contemporary peacebuilding interventions have been dominated by liberal peacebuilding, also known as liberal state-building. Post-conflict states have been transforming to replicate liberal states due to assumptions of liberal states being more peaceful and less likely to fall into conflict again than non-liberal states. There is growing criticism regarding the effectiveness of this approach as its initiatives have not always translated to sustainable peace. This failure is attributed to its minimal inclusion or exclusion of local actors in the peacebuilding process as well as its application of standardised approaches in complex contexts. In response to these shortfalls, international peacebuilding scholars propose an alternative approach that would combine the liberal and the local to produce a hybrid peace, which is inclusive and context-specific. This thesis tests the decisiveness of these approaches by examining the successful peacebuilding process in Sierra Leone. It then concludes that the peacebuilding interventions of Sierra Leone demonstrate how liberal peacebuilding initiatives have little or limited success when conducted without the inclusion of local actors. However, when local actors are included in the peace-building process to make meaningful contributions (hybrid peacebuilding), peacebuilding initiatives can have a much larger impact on society. , Thesis (MA) -- Faculty of Humanities, Political and International Studies, 2023
- Full Text:
Evaluating the potential effects of microplastics at environmentally realistic concentrations in South African freshwater systems
- Authors: Mtintsilana, Zintle
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424160 , vital:72129
- Description: Microplastic pollution is spatially broad, microplastics can be found in various habitats including freshwater systems. Microplastic exposure to aquatic organisms has been associated with several physical impacts on aquatic organisms from multiple trophic levels such as; increased immune response, a decrease in food intake, excessive loss of weight, reduced growth rate, reduced energy and adverse effects on successive generations. However, these significant effects of microplastics exposure have been observed mostly in studies that use concentrations of microplastics that exceed environmental concentrations. Therefore, there is an overall lack of research on the effects of microplastics on freshwater organisms using environmentally realistic concentrations, especially in the Southern Hemisphere. A series of toxicity tests were used to expose a range of taxa including Tilapia sparrmanii, Caridina nilotica, and Melanoides tuberculata to different environmentally realistic concentrations of microplastics of different polymers. The study results show that the environmentally realistic concentrations had no statistically significant effects on most of the chosen test organisms and selected study endpoints, except for T. sparrmanii microplastic particle egestion and growth in polyethylene exposures which produced significant results. Although this study showed that at environmentally realistic concentrations and 21 days of exposure, minute effects on the test taxa were detected, various studies have proven that with longer exposure to microplastics, significant effects on freshwater organisms can be detected. Additionally, studies using concentrations higher than the current environmental concentrations have recorded significant effects on organisms and therefore, with increasing concentrations in the environment, more significant effects may be observed. Therefore, plastic pollution in the environment should be reduced as microplastics are in continuous production and circulation, and microplastic concentrations in freshwater environments are predicted to increase. , Thesis (MSc) -- Faculty of Science, Institute for Water Research, 2023
- Full Text:
- Authors: Mtintsilana, Zintle
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424160 , vital:72129
- Description: Microplastic pollution is spatially broad, microplastics can be found in various habitats including freshwater systems. Microplastic exposure to aquatic organisms has been associated with several physical impacts on aquatic organisms from multiple trophic levels such as; increased immune response, a decrease in food intake, excessive loss of weight, reduced growth rate, reduced energy and adverse effects on successive generations. However, these significant effects of microplastics exposure have been observed mostly in studies that use concentrations of microplastics that exceed environmental concentrations. Therefore, there is an overall lack of research on the effects of microplastics on freshwater organisms using environmentally realistic concentrations, especially in the Southern Hemisphere. A series of toxicity tests were used to expose a range of taxa including Tilapia sparrmanii, Caridina nilotica, and Melanoides tuberculata to different environmentally realistic concentrations of microplastics of different polymers. The study results show that the environmentally realistic concentrations had no statistically significant effects on most of the chosen test organisms and selected study endpoints, except for T. sparrmanii microplastic particle egestion and growth in polyethylene exposures which produced significant results. Although this study showed that at environmentally realistic concentrations and 21 days of exposure, minute effects on the test taxa were detected, various studies have proven that with longer exposure to microplastics, significant effects on freshwater organisms can be detected. Additionally, studies using concentrations higher than the current environmental concentrations have recorded significant effects on organisms and therefore, with increasing concentrations in the environment, more significant effects may be observed. Therefore, plastic pollution in the environment should be reduced as microplastics are in continuous production and circulation, and microplastic concentrations in freshwater environments are predicted to increase. , Thesis (MSc) -- Faculty of Science, Institute for Water Research, 2023
- Full Text:
Evaluating the role of Stress Induced Phosphoprotein 1 isoforms in Kaposi's Sarcoma-Associated Herpesvirus biology
- Authors: Ruck, Duncan Kyle
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/365280 , vital:65723
- Description: Thesis embargoed. Possible release date set for early 2025. , Thesis (MSc) -- Faculty of Science, Biochemistry and Microbiology, 2022
- Full Text:
- Authors: Ruck, Duncan Kyle
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/365280 , vital:65723
- Description: Thesis embargoed. Possible release date set for early 2025. , Thesis (MSc) -- Faculty of Science, Biochemistry and Microbiology, 2022
- Full Text:
Evaluating the trophic ecology and feeding habits of three divergent lineages of Sandelia bainsii (Teleostei: Anabantidae), from the Eastern Cape Rivers using stable isotope analysis
- Authors: Nkomo, Thulisile
- Date: 2022-10-14
- Subjects: Anabantidae , Trophic ecology , Food chains (Ecology) , Food web , Freshwater fishes Food , Stable isotopes
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/364984 , vital:65667
- Description: Despite supporting a disproportionately large fraction of the global biodiversity, freshwater ecosystems are ranked as the most highly threatened habitats on the planet, ahead of both terrestrial and marine ecosystems. Many regions are still characterised by limited knowledge regarding the taxonomy and ecology of freshwater fish taxa. The need for ecological information is increasingly becoming important due to the discovery of new species and unique lineages, which require conservation management. The aim of this study was thus to evaluate the trophic ecology and feeding habits of the three recently described and divergent Sandelia bainsii lineages, namely Sandelia sp. ‘bainsii Kowie’ from the Great Fish River, Sandelia sp. ‘bainsii Keiskamma’ found in the Keiskamma River, and Sandelia sp. ‘bainsii Buffalo’ confined to the Buffalo River system in the Amathole-Winterberg freshwater ecoregion in the Eastern Cape Province, South Africa. Based on the allopatric distribution and the generalist feeding habits of these lineages, this thesis postulated that these three lineages were likely to show similar trophic ecology patterns, different dietary composition and as a result would have variable trophic positioning in the different river systems. Therefore, the primary objectives were to use stable isotope analysis to (1) evaluate the food web patterns of the river systems where the three S. bainsii lineages occurred, and (2) determine dietary source contributions for the three lineages using isotope mixing models. The results revealed general variability and significant differences in the δ13C and δ¹⁵N values for the different basal resources, macroinvertebrates and fish community across the different headwater streams. Within and across the different rivers, the S. bainsii lineages exhibited variable isotopic niche sizes, which appeared to coincide with the variation in the isotopic composition of the individual communities. Furthermore, these lineages did not exhibit any discernible patterns in their interspecific interactions in different habitats. This suggests that these lineages’ isotopic niche patterns were largely influenced by spatial differences in both trophic resources and probable interactions with contraspecifics. Assessment of trophic positions of S. bainsii lineages showed that the three lineages had higher trophic positions than other co-occurring species at most sites, except in the Buffalo River. This suggest that the different lineages were generally top predators in the different river systems. Although S. ‘bainsii Buffalo’ had a lower trophic position compared to other co-occurring species, its trophic position was generally characterised by high uncertainty, indicating that this lineage was likely influenced by the occurrence of diet sources that had highly variable stable isotope values. Findings from stable isotope mixing models revealed that the diet sources varied from the dominance of either single diet source in the Fairburn and Tyume 1 River to the importance of multiple prey sources from the Lushington and Kat River system. This suggests that despite being a top predator at most sites, the diet sources for the different lineages were highly variable. The patterns observed in this study did not appear to be attributed to species divergence possibly caused by allopatric speciation, but rather differences in food web characteristics of the river systems, as well as the lineages interspecific relationships and their generalized feeding strategies. Understanding the trophic dynamics of these lineages will assist in implementing effective conservation strategies and policies dealing with narrowly distributed species that are threatened by habitat fragmentation and invasion of piscivorous fish. , Thesis (MSc) -- Faculty of Science, Ichthyology and Fisheries Science, 2022
- Full Text:
- Authors: Nkomo, Thulisile
- Date: 2022-10-14
- Subjects: Anabantidae , Trophic ecology , Food chains (Ecology) , Food web , Freshwater fishes Food , Stable isotopes
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/364984 , vital:65667
- Description: Despite supporting a disproportionately large fraction of the global biodiversity, freshwater ecosystems are ranked as the most highly threatened habitats on the planet, ahead of both terrestrial and marine ecosystems. Many regions are still characterised by limited knowledge regarding the taxonomy and ecology of freshwater fish taxa. The need for ecological information is increasingly becoming important due to the discovery of new species and unique lineages, which require conservation management. The aim of this study was thus to evaluate the trophic ecology and feeding habits of the three recently described and divergent Sandelia bainsii lineages, namely Sandelia sp. ‘bainsii Kowie’ from the Great Fish River, Sandelia sp. ‘bainsii Keiskamma’ found in the Keiskamma River, and Sandelia sp. ‘bainsii Buffalo’ confined to the Buffalo River system in the Amathole-Winterberg freshwater ecoregion in the Eastern Cape Province, South Africa. Based on the allopatric distribution and the generalist feeding habits of these lineages, this thesis postulated that these three lineages were likely to show similar trophic ecology patterns, different dietary composition and as a result would have variable trophic positioning in the different river systems. Therefore, the primary objectives were to use stable isotope analysis to (1) evaluate the food web patterns of the river systems where the three S. bainsii lineages occurred, and (2) determine dietary source contributions for the three lineages using isotope mixing models. The results revealed general variability and significant differences in the δ13C and δ¹⁵N values for the different basal resources, macroinvertebrates and fish community across the different headwater streams. Within and across the different rivers, the S. bainsii lineages exhibited variable isotopic niche sizes, which appeared to coincide with the variation in the isotopic composition of the individual communities. Furthermore, these lineages did not exhibit any discernible patterns in their interspecific interactions in different habitats. This suggests that these lineages’ isotopic niche patterns were largely influenced by spatial differences in both trophic resources and probable interactions with contraspecifics. Assessment of trophic positions of S. bainsii lineages showed that the three lineages had higher trophic positions than other co-occurring species at most sites, except in the Buffalo River. This suggest that the different lineages were generally top predators in the different river systems. Although S. ‘bainsii Buffalo’ had a lower trophic position compared to other co-occurring species, its trophic position was generally characterised by high uncertainty, indicating that this lineage was likely influenced by the occurrence of diet sources that had highly variable stable isotope values. Findings from stable isotope mixing models revealed that the diet sources varied from the dominance of either single diet source in the Fairburn and Tyume 1 River to the importance of multiple prey sources from the Lushington and Kat River system. This suggests that despite being a top predator at most sites, the diet sources for the different lineages were highly variable. The patterns observed in this study did not appear to be attributed to species divergence possibly caused by allopatric speciation, but rather differences in food web characteristics of the river systems, as well as the lineages interspecific relationships and their generalized feeding strategies. Understanding the trophic dynamics of these lineages will assist in implementing effective conservation strategies and policies dealing with narrowly distributed species that are threatened by habitat fragmentation and invasion of piscivorous fish. , Thesis (MSc) -- Faculty of Science, Ichthyology and Fisheries Science, 2022
- Full Text:
Evaluation of potential oviposition deterrents for false codling moth, Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae)
- Authors: Dambuza, Khalipha
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424479 , vital:72157
- Description: There has been extensive research on the use of semiochemicals as deterrents or true repellents in insect pest management, particularly in push-pull strategies. Much of this research has focused on pests of medical and veterinary importance and has been limited for agricultural pests. This means there is an opportunity to study use of deterrents to manage pests of agricultural importance. No study has been conducted on deterrents for false codling moth (FCM), Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae), a key phytosanitary pest in citrus orchards across South Africa. This study assessed FCM oviposition deterrence in botanicals (plants (n = 11) and essential oils (n = 15)), and some commercial pesticides (n = 7) used for FCM control in South Africa. All tested botanicals were selected based on an extensive literature review of plant compounds that have been reported to deter or repel lepidopteran pests. Choice and no-choice oviposition bioassays were conducted in complete darkness in a controlled environment room. Oranges treated with solutions/suspensions of potential oviposition deterrents were placed into a cage with gravid FCM females for four hours, with oviposition being recorded every hour. Of the 33 tested compounds, only eight significantly reduced FCM oviposition (P < 0.05) compared to the control in oviposition bioassays i.e. two essential oils (lavender and peppermint), two plant crude extracts (garlic and marigold), one fruit (Mango), and three commercial FCM insecticides (Delegate, Coragen, and Warlock). All identified oviposition deterrents, except for Mango, were further investigated for their ovicidal properties in concentration response bioassays, where all botanicals were identified to have dual action (both deterrent and ovicidal properties), as they significantly (P < 0.05) reduced FCM oviposition and egg hatch. Garlic was the most efficacious botanical whilst Warlock was the only commercial insecticide that did not show ovicidal activity (F = 41.17, P = 0.0622). Larval penetration of the host fruit was less than egg hatch for all tested compounds in concentration response bioassays. Oviposition, egg hatch, and larval penetration were all affected by concentration, with the higher concentrations being the most effective. The efficacy of these deterrent compounds should be further tested in semi-field and/or field trials, and they may have potential in FCM management as allomone dispensers or sprays. They can also be implemented in push-pull strategies where they can be used in conjunction with FCM attractants. Lastly, repellence studies should be conducted in absentia of the host fruit to determine whether oviposition deterrence was a result of true repellence or odour masking. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2023
- Full Text:
- Authors: Dambuza, Khalipha
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424479 , vital:72157
- Description: There has been extensive research on the use of semiochemicals as deterrents or true repellents in insect pest management, particularly in push-pull strategies. Much of this research has focused on pests of medical and veterinary importance and has been limited for agricultural pests. This means there is an opportunity to study use of deterrents to manage pests of agricultural importance. No study has been conducted on deterrents for false codling moth (FCM), Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae), a key phytosanitary pest in citrus orchards across South Africa. This study assessed FCM oviposition deterrence in botanicals (plants (n = 11) and essential oils (n = 15)), and some commercial pesticides (n = 7) used for FCM control in South Africa. All tested botanicals were selected based on an extensive literature review of plant compounds that have been reported to deter or repel lepidopteran pests. Choice and no-choice oviposition bioassays were conducted in complete darkness in a controlled environment room. Oranges treated with solutions/suspensions of potential oviposition deterrents were placed into a cage with gravid FCM females for four hours, with oviposition being recorded every hour. Of the 33 tested compounds, only eight significantly reduced FCM oviposition (P < 0.05) compared to the control in oviposition bioassays i.e. two essential oils (lavender and peppermint), two plant crude extracts (garlic and marigold), one fruit (Mango), and three commercial FCM insecticides (Delegate, Coragen, and Warlock). All identified oviposition deterrents, except for Mango, were further investigated for their ovicidal properties in concentration response bioassays, where all botanicals were identified to have dual action (both deterrent and ovicidal properties), as they significantly (P < 0.05) reduced FCM oviposition and egg hatch. Garlic was the most efficacious botanical whilst Warlock was the only commercial insecticide that did not show ovicidal activity (F = 41.17, P = 0.0622). Larval penetration of the host fruit was less than egg hatch for all tested compounds in concentration response bioassays. Oviposition, egg hatch, and larval penetration were all affected by concentration, with the higher concentrations being the most effective. The efficacy of these deterrent compounds should be further tested in semi-field and/or field trials, and they may have potential in FCM management as allomone dispensers or sprays. They can also be implemented in push-pull strategies where they can be used in conjunction with FCM attractants. Lastly, repellence studies should be conducted in absentia of the host fruit to determine whether oviposition deterrence was a result of true repellence or odour masking. , Thesis (MSc) -- Faculty of Science, Zoology and Entomology, 2023
- Full Text:
Every gig counts: understanding the livelihood strategies of Zimbabwean platform food delivery workers in Makhanda, Eastern Cape
- Authors: Mwansa, Kombe
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/425193 , vital:72218
- Description: Zimbabweans are often faced with several obstacles upon their arrival in South Africa. This thesis seeks to understand the lives and livelihoods of Zimbabwean gig economy workers in Makhanda using the case of Platform food delivery workers. Drawing from Chambers and Conway (1991) Sustainable Livelihoods Approach and existing literature the study explores the livelihoods of ten Zimbabwean gig workers in Makhanda using non-random purposeful sampling. Using qualitative methodology, the study examines their demographic backgrounds; pathways to employment in the gig economy; the economic and social livelihood strategies at their disposal, the daily challenges they face; and the livelihood outcomes they acquire as a result of their livelihood strategies. A case study involves an in-depth examination of a single individual, group, organization, or event. It is particularly useful for understanding complex phenomena in their real-world context. The study took on a case study approach which involved an in-depth examination of Zimbabwean Platform food delivery workers in Makhanda. The study found that there are complex connections between the gig economy and migrants' livelihoods. From one perspective in the context of South Africa’s constricted labour markets, gig work offers migrant workers quick pathways to employment and self-sufficiency. From another perspective gig work is precarious and technology companies misclassify gig workers as independent contractors, which leaves gig workers in vulnerable positions. Further findings show that migrant gig workers often combine gig work with other livelihood strategies in pursuit of secure and sustainable livelihoods. , Thesis (MA) -- Faculty of Humanities, Sociology, 2023
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- Authors: Mwansa, Kombe
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/425193 , vital:72218
- Description: Zimbabweans are often faced with several obstacles upon their arrival in South Africa. This thesis seeks to understand the lives and livelihoods of Zimbabwean gig economy workers in Makhanda using the case of Platform food delivery workers. Drawing from Chambers and Conway (1991) Sustainable Livelihoods Approach and existing literature the study explores the livelihoods of ten Zimbabwean gig workers in Makhanda using non-random purposeful sampling. Using qualitative methodology, the study examines their demographic backgrounds; pathways to employment in the gig economy; the economic and social livelihood strategies at their disposal, the daily challenges they face; and the livelihood outcomes they acquire as a result of their livelihood strategies. A case study involves an in-depth examination of a single individual, group, organization, or event. It is particularly useful for understanding complex phenomena in their real-world context. The study took on a case study approach which involved an in-depth examination of Zimbabwean Platform food delivery workers in Makhanda. The study found that there are complex connections between the gig economy and migrants' livelihoods. From one perspective in the context of South Africa’s constricted labour markets, gig work offers migrant workers quick pathways to employment and self-sufficiency. From another perspective gig work is precarious and technology companies misclassify gig workers as independent contractors, which leaves gig workers in vulnerable positions. Further findings show that migrant gig workers often combine gig work with other livelihood strategies in pursuit of secure and sustainable livelihoods. , Thesis (MA) -- Faculty of Humanities, Sociology, 2023
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Evolving IoT honeypots
- Authors: Genov, Todor Stanislavov
- Date: 2022-10-14
- Subjects: Internet of things , Malware (Computer software) , QEMU , Honeypot , Cowrie
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/362819 , vital:65365
- Description: The Internet of Things (IoT) is the emerging world where arbitrary objects from our everyday lives gain basic computational and networking capabilities to become part of the Internet. Researchers are estimating between 25 and 35 billion devices will be part of Internet by 2022. Unlike conventional computers where one hardware platform (Intel x86) and three operating systems (Windows, Linux and OS X) dominate the market, the IoT landscape is far more heterogeneous. To meet the growth demand the number of The System-on-Chip (SoC) manufacturers has seen a corresponding exponential growth making embedded platforms based on ARM, MIPS or SH4 processors abundant. The pursuit for market share is further leading to a price war and cost-cutting ultimately resulting in cheap systems with limited hardware resources and capabilities. The frugality of IoT hardware has a domino effect. Due to resource constraints vendors are packaging devices with custom, stripped-down Linux-based firmwares optimized for performing the device’s primary function. Device management, monitoring and security features are by and far absent from IoT devices. This created an asymmetry favouring attackers and disadvantaging defenders. This research sets out to reduce the opacity and identify a viable strategy, tactics and tooling for gaining insight into the IoT threat landscape by leveraging honeypots to build and deploy an evolving world-wide Observatory, based on cloud platforms, to help with studying attacker behaviour and collecting IoT malware samples. The research produces useful tools and techniques for identifying behavioural differences between Medium-Interaction honeypots and real devices by replaying interactive attacker sessions collected from the Honeypot Network. The behavioural delta is used to evolve the Honeypot Network and improve its collection capabilities. Positive results are obtained with respect to effectiveness of the above technique. Findings by other researchers in the field are also replicated. The complete dataset and source code used for this research is made publicly available on the Open Science Framework website at https://osf.io/vkcrn/. , Thesis (MSc) -- Faculty of Science, Computer Science, 2022
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- Authors: Genov, Todor Stanislavov
- Date: 2022-10-14
- Subjects: Internet of things , Malware (Computer software) , QEMU , Honeypot , Cowrie
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/362819 , vital:65365
- Description: The Internet of Things (IoT) is the emerging world where arbitrary objects from our everyday lives gain basic computational and networking capabilities to become part of the Internet. Researchers are estimating between 25 and 35 billion devices will be part of Internet by 2022. Unlike conventional computers where one hardware platform (Intel x86) and three operating systems (Windows, Linux and OS X) dominate the market, the IoT landscape is far more heterogeneous. To meet the growth demand the number of The System-on-Chip (SoC) manufacturers has seen a corresponding exponential growth making embedded platforms based on ARM, MIPS or SH4 processors abundant. The pursuit for market share is further leading to a price war and cost-cutting ultimately resulting in cheap systems with limited hardware resources and capabilities. The frugality of IoT hardware has a domino effect. Due to resource constraints vendors are packaging devices with custom, stripped-down Linux-based firmwares optimized for performing the device’s primary function. Device management, monitoring and security features are by and far absent from IoT devices. This created an asymmetry favouring attackers and disadvantaging defenders. This research sets out to reduce the opacity and identify a viable strategy, tactics and tooling for gaining insight into the IoT threat landscape by leveraging honeypots to build and deploy an evolving world-wide Observatory, based on cloud platforms, to help with studying attacker behaviour and collecting IoT malware samples. The research produces useful tools and techniques for identifying behavioural differences between Medium-Interaction honeypots and real devices by replaying interactive attacker sessions collected from the Honeypot Network. The behavioural delta is used to evolve the Honeypot Network and improve its collection capabilities. Positive results are obtained with respect to effectiveness of the above technique. Findings by other researchers in the field are also replicated. The complete dataset and source code used for this research is made publicly available on the Open Science Framework website at https://osf.io/vkcrn/. , Thesis (MSc) -- Faculty of Science, Computer Science, 2022
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Examining teachers’ pedagogical strategies for fostering critical thinking skills in English as a Second Language (ESL) classrooms: a case study of selected Namibian secondary school teachers
- Authors: Rittmann, Heinrich Heinz
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424097 , vital:72123
- Description: Thesis embargoed. Expected release date 2025. , Thesis (MEd) -- Faculty of Education, Secondary and Post-School Education, 2023
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- Authors: Rittmann, Heinrich Heinz
- Date: 2023-10-13
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424097 , vital:72123
- Description: Thesis embargoed. Expected release date 2025. , Thesis (MEd) -- Faculty of Education, Secondary and Post-School Education, 2023
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Examining the expenditures and retention of money of recreational fishing along the Wild Coast, South Africa
- Authors: Pyle, Michael Jonathan
- Date: 2023-10-13
- Subjects: Ecotourism South Africa , Sustainable fisheries South Africa , Wild Coast Region , Small-scale fisheries Economic aspects South Africa , Socioeconomic development , Leakage
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/419673 , vital:71665
- Description: Developing countries and rural communities rely heavily on the ocean for food, transport, and the sustainability of their livelihoods. While the economics of small-scale fisheries in rural areas have received much attention, there is generally less information on the economic contributions from recreational fisheries in these areas. South Africa’s marine recreational fishery is large and contributes to a significant amount of economic activity. However, the retention of money from recreational fishing activities in local rural economies is unknown and thus the potential developmental benefits from this sector remain unquantified. This study examined the economic contributions from recreational fishing along the Wild Coast and retention of expenditures within the local economy. A total of 109 face-to-face economic surveys were administered during the peak recreational fishing season in December 2021. Based on the results, recreational fishing in the Wild Coast has the ability to generate R 415 446 098 in economic activity annually, however only 9.5% of this is retained within local coastal economies, which diminishes the economic contributions of the fishery to the Wild Coast region. Expenditures on items stemming from the informal collection and selling of bait and seafood, domestic work and guiding were the highest locally retained expenditures within the region. 98% of all bait and seafood was harvested and sold by local gillies, with 2% being bought through hotels (n=109). The total direct economic contribution in terms of informal harvesting was estimated at R 16 077 711 for 2021 (n= 9 601). The identification of these contributions can be used to provide recommendations for local economic development strategies which can support the recreational fishery while uplifting coastal communities that should be benefitting more from the activity. , Thesis (MCom) -- Faculty of Commerce, Economics and Economic History, 2023
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- Authors: Pyle, Michael Jonathan
- Date: 2023-10-13
- Subjects: Ecotourism South Africa , Sustainable fisheries South Africa , Wild Coast Region , Small-scale fisheries Economic aspects South Africa , Socioeconomic development , Leakage
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/419673 , vital:71665
- Description: Developing countries and rural communities rely heavily on the ocean for food, transport, and the sustainability of their livelihoods. While the economics of small-scale fisheries in rural areas have received much attention, there is generally less information on the economic contributions from recreational fisheries in these areas. South Africa’s marine recreational fishery is large and contributes to a significant amount of economic activity. However, the retention of money from recreational fishing activities in local rural economies is unknown and thus the potential developmental benefits from this sector remain unquantified. This study examined the economic contributions from recreational fishing along the Wild Coast and retention of expenditures within the local economy. A total of 109 face-to-face economic surveys were administered during the peak recreational fishing season in December 2021. Based on the results, recreational fishing in the Wild Coast has the ability to generate R 415 446 098 in economic activity annually, however only 9.5% of this is retained within local coastal economies, which diminishes the economic contributions of the fishery to the Wild Coast region. Expenditures on items stemming from the informal collection and selling of bait and seafood, domestic work and guiding were the highest locally retained expenditures within the region. 98% of all bait and seafood was harvested and sold by local gillies, with 2% being bought through hotels (n=109). The total direct economic contribution in terms of informal harvesting was estimated at R 16 077 711 for 2021 (n= 9 601). The identification of these contributions can be used to provide recommendations for local economic development strategies which can support the recreational fishery while uplifting coastal communities that should be benefitting more from the activity. , Thesis (MCom) -- Faculty of Commerce, Economics and Economic History, 2023
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Exchange rate volatility and the returns on diversified South African investment portfolios
- Authors: Mulamu, Murendeni
- Date: 2022-04-06
- Subjects: Foreign exchange rates South Africa , Rate of return , Investments , GARCH model , Regression analysis , Autoregressive distributed lag (ARDL) model
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/284581 , vital:56076
- Description: Globalisation has made it much easier to invest in foreign countries. This creates endless options accessible to investors, including exploiting opportunities for investment in international economies. Although foreign investment portfolio diversification provides significant opportunities for financial returns, exchange rate volatility may play a prominent role when investing in foreign markets. Since the introduction of a floating exchange rate system, together with the inflation-targeting monetary policy framework in South Africa, there has been significant volatility in the exchange rate, far more than during the previous dispensations. This, however, creates a strong need to consider how the unpredictable nature of the exchange rate affects these investments. The purpose of this study is to analyse the effect of exchange rate volatility on the returns on diversified South African investment portfolios. This research examined whether there is a homogenous relationship between South African (domestic) portfolios and the internationally diversified portfolios. In addition, the study investigated the long-run relationship between the exchange rate volatility and both domestic portfolios and the internationally diversified portfolios for the period 2007-2019. To achieve these goals, a panel ARDL model was employed. This study found that exchange rate volatility does not account for a significant portion of returns on investment portfolios fluctuations. Moreover, the relationship is not homogenous because returns on domestic investment portfolios react positively to the exchange rate volatility, whereas returns international investment portfolios respond negatively/positively to the exchange rate volatility depending on whether the relationship is short or long run. This study will contribute to the existing literature, and it is important for investors intending to diversify their investment portfolios both domestically and internationally using different mutual funds in South Africa. , Thesis (MCom) -- Faculty of Commerce, Economics and Economic History, 2022
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- Authors: Mulamu, Murendeni
- Date: 2022-04-06
- Subjects: Foreign exchange rates South Africa , Rate of return , Investments , GARCH model , Regression analysis , Autoregressive distributed lag (ARDL) model
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/284581 , vital:56076
- Description: Globalisation has made it much easier to invest in foreign countries. This creates endless options accessible to investors, including exploiting opportunities for investment in international economies. Although foreign investment portfolio diversification provides significant opportunities for financial returns, exchange rate volatility may play a prominent role when investing in foreign markets. Since the introduction of a floating exchange rate system, together with the inflation-targeting monetary policy framework in South Africa, there has been significant volatility in the exchange rate, far more than during the previous dispensations. This, however, creates a strong need to consider how the unpredictable nature of the exchange rate affects these investments. The purpose of this study is to analyse the effect of exchange rate volatility on the returns on diversified South African investment portfolios. This research examined whether there is a homogenous relationship between South African (domestic) portfolios and the internationally diversified portfolios. In addition, the study investigated the long-run relationship between the exchange rate volatility and both domestic portfolios and the internationally diversified portfolios for the period 2007-2019. To achieve these goals, a panel ARDL model was employed. This study found that exchange rate volatility does not account for a significant portion of returns on investment portfolios fluctuations. Moreover, the relationship is not homogenous because returns on domestic investment portfolios react positively to the exchange rate volatility, whereas returns international investment portfolios respond negatively/positively to the exchange rate volatility depending on whether the relationship is short or long run. This study will contribute to the existing literature, and it is important for investors intending to diversify their investment portfolios both domestically and internationally using different mutual funds in South Africa. , Thesis (MCom) -- Faculty of Commerce, Economics and Economic History, 2022
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Experiences of men vlogging about substance use disorder recovery on YouTube
- Authors: Chele, Palesa Shené
- Date: 2023-03-30
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/408829 , vital:70529
- Description: The journey of substance use recovery is an inherently dynamic and on-going process. It is advanced through secure social support systems. Furthermore, requiring the explicit practice of self-advancement and self-efficacy. However, in South Africa, despite the continued upsurge of substance abuse, there remains a substantial gap between the high demand for treatment and the limited capacity to provide state-funded treatment. In addition, various psychosocial and socio-economic factors further impede access to treatment or recovery support. Thus, within communities facing SUD treatment barriers the exploration of individual lived experiences may deepen understandings of how men experience the journey of substance use recovery. , Thesis (MA) -- Faculty of Humanities, Psychology, 2023
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- Authors: Chele, Palesa Shené
- Date: 2023-03-30
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/408829 , vital:70529
- Description: The journey of substance use recovery is an inherently dynamic and on-going process. It is advanced through secure social support systems. Furthermore, requiring the explicit practice of self-advancement and self-efficacy. However, in South Africa, despite the continued upsurge of substance abuse, there remains a substantial gap between the high demand for treatment and the limited capacity to provide state-funded treatment. In addition, various psychosocial and socio-economic factors further impede access to treatment or recovery support. Thus, within communities facing SUD treatment barriers the exploration of individual lived experiences may deepen understandings of how men experience the journey of substance use recovery. , Thesis (MA) -- Faculty of Humanities, Psychology, 2023
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