Water quality, biomass and extracellular polymeric substances in an integrated algae pond system
- Authors: Jimoh, Taobat Adekilekun
- Date: 2018
- Subjects: Water -- Purification , Sewage -- Purification -- Anaerobic treatment , Sewage lagoons , Sewage disposal plants , ASPAM model (Acid mine drainage) , Integrated algae pond systems (IAPS)
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/57307 , vital:26871
- Description: Integrated algae pond systems (IAPS) combine the use of anaerobic and aerobic bioprocesses to effect wastewater treatment. Although, IAPS as a technology process offers many advantages including efficient and simultaneous N and P removal, no requirement for additional chemicals, O2 generation, CO2 mitigation, and a biomass with potential for valorization, a lack of technological advancement and the need for large land area, has limited the reach of this technology at industrial scale. In mitigation, peroxonation was introduced as a tertiary treatment unit and its effect on COD and TSS of IAPS treated water investigated. An effort was made to characterize the soluble but persistent COD in IAPS treated water and, productivity of the HRAOP mixed liquor was investigated to gain insight into the potential use of this biomass. Results show that peroxone treatment effectively reduced COD, TSS, and nutrient load of IAPS water without any significant impact on land area requirement. Indeed, summary data describing the effect of peroxone on quality of IAPS-treated water confirmed that it complies with the general limit values for either irrigation or discharge into a water resource that is not a listed water resource for volumes up to 2 ML of treated wastewater on any given day. Extraction followed by FT-IR spectroscopy was used to confirm albeit tentatively, the identity of the soluble but persistent COD in IAPS treated water as MaB-floc EPS. Results show that MaB-flocs from HRAOPs are assemblages of microorganisms produced as discrete aggregates as a result of microbial EPS production. A relationship between photosynthesis and EPS production was established by quantification of the EPS following exposure of MaB-flocs to either continuous light or darkness. Several novel strains of bacteria were isolated from HRAOP mixed liquor and 16S ribosomal genomic sequence analysis resulted in the molecular characterization of Planococcus maitriensis strain ECCN 45b. This is the first report of Planococcus maitriensis from a wastewater treatment process. Productivity and change in MaB-flocs concentration, measured as mixed liquor suspended solids (MLSS) between morning and evening were monitored and revealed that MLSS is composed of microalgae and bacteria but not fungi. Concentration varied from 77 mg L-1 in September (winter) to 285 mg L-1 in November (spring); pond productivity increased from 5.8 g m-2 d-1 (winter) to 21.5 g m-2 d-1 (spring); and, irrespective of MLSS concentration in late afternoon, approximately 39% was lost overnight, which presumably occurred due to passive removal by the algae settling pond. The outcomes of this research are discussed in terms of the quality of treated water, and the further development of IAPS as a platform technology for establishing a biorefinery within the wastewater treatment sector.
- Full Text:
- Authors: Jimoh, Taobat Adekilekun
- Date: 2018
- Subjects: Water -- Purification , Sewage -- Purification -- Anaerobic treatment , Sewage lagoons , Sewage disposal plants , ASPAM model (Acid mine drainage) , Integrated algae pond systems (IAPS)
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/57307 , vital:26871
- Description: Integrated algae pond systems (IAPS) combine the use of anaerobic and aerobic bioprocesses to effect wastewater treatment. Although, IAPS as a technology process offers many advantages including efficient and simultaneous N and P removal, no requirement for additional chemicals, O2 generation, CO2 mitigation, and a biomass with potential for valorization, a lack of technological advancement and the need for large land area, has limited the reach of this technology at industrial scale. In mitigation, peroxonation was introduced as a tertiary treatment unit and its effect on COD and TSS of IAPS treated water investigated. An effort was made to characterize the soluble but persistent COD in IAPS treated water and, productivity of the HRAOP mixed liquor was investigated to gain insight into the potential use of this biomass. Results show that peroxone treatment effectively reduced COD, TSS, and nutrient load of IAPS water without any significant impact on land area requirement. Indeed, summary data describing the effect of peroxone on quality of IAPS-treated water confirmed that it complies with the general limit values for either irrigation or discharge into a water resource that is not a listed water resource for volumes up to 2 ML of treated wastewater on any given day. Extraction followed by FT-IR spectroscopy was used to confirm albeit tentatively, the identity of the soluble but persistent COD in IAPS treated water as MaB-floc EPS. Results show that MaB-flocs from HRAOPs are assemblages of microorganisms produced as discrete aggregates as a result of microbial EPS production. A relationship between photosynthesis and EPS production was established by quantification of the EPS following exposure of MaB-flocs to either continuous light or darkness. Several novel strains of bacteria were isolated from HRAOP mixed liquor and 16S ribosomal genomic sequence analysis resulted in the molecular characterization of Planococcus maitriensis strain ECCN 45b. This is the first report of Planococcus maitriensis from a wastewater treatment process. Productivity and change in MaB-flocs concentration, measured as mixed liquor suspended solids (MLSS) between morning and evening were monitored and revealed that MLSS is composed of microalgae and bacteria but not fungi. Concentration varied from 77 mg L-1 in September (winter) to 285 mg L-1 in November (spring); pond productivity increased from 5.8 g m-2 d-1 (winter) to 21.5 g m-2 d-1 (spring); and, irrespective of MLSS concentration in late afternoon, approximately 39% was lost overnight, which presumably occurred due to passive removal by the algae settling pond. The outcomes of this research are discussed in terms of the quality of treated water, and the further development of IAPS as a platform technology for establishing a biorefinery within the wastewater treatment sector.
- Full Text:
When an Editor Decides to Listen to a City: Heather Robertson, The Herald, and Nelson Mandela Bay
- Garman, Anthea, Malila, Vanessa
- Authors: Garman, Anthea , Malila, Vanessa
- Date: 2018
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/158427 , vital:40185 , ISBN 9781351664363
- Description: This book provides case studies, many incorporating in-depth interviews and surveys of journalists. It examines issues such as journalists’ attitudes toward their contributions to society; the impact of industry and technological changes; culture and minority issues in the newsroom and profession; the impact of censorship and self-censorship; and coping with psychological pressures and physical safety dilemmas. Its chapters also highlight journalists’ challenges in national and multinational contexts. International scholars, conducting research within a wide range of authoritarian, semi-democratic, and democratic systems, contributed to this examination of journalistic practices in the Arab World, Australia, Bangladesh, Bulgaria, China, Denmark, India, Kenya, Kyrgyzstan, Malaysia, Mexico, Russia, Samoa, South Africa, Taiwan, Turkey, and the United States.
- Full Text:
- Authors: Garman, Anthea , Malila, Vanessa
- Date: 2018
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/158427 , vital:40185 , ISBN 9781351664363
- Description: This book provides case studies, many incorporating in-depth interviews and surveys of journalists. It examines issues such as journalists’ attitudes toward their contributions to society; the impact of industry and technological changes; culture and minority issues in the newsroom and profession; the impact of censorship and self-censorship; and coping with psychological pressures and physical safety dilemmas. Its chapters also highlight journalists’ challenges in national and multinational contexts. International scholars, conducting research within a wide range of authoritarian, semi-democratic, and democratic systems, contributed to this examination of journalistic practices in the Arab World, Australia, Bangladesh, Bulgaria, China, Denmark, India, Kenya, Kyrgyzstan, Malaysia, Mexico, Russia, Samoa, South Africa, Taiwan, Turkey, and the United States.
- Full Text:
When the students are revolting: the (im) possibilities of listening in academic contexts in South Africa
- Authors: Garman, Anthea
- Date: 2018
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/158416 , vital:40182 , ISBN 978-3-319-93958-2 , https://0-doi.org.wam.seals.ac.za/10.1007/978-3-319-93958-2
- Description: Student activists in South Africa have put the decolonisation of higher education firmly on the agenda, demanding that researchers and teachers pay attention to something in particular that is very hard to hear and very possibly unhearable. These young, black South Africans are the intellectual force upon whom we are depending for the altered future of our country. We cannot change the circumstances which continue to frustrate and anger them without paying particular attention to them. Taking on the knowledge bases and knowledge generation in the Global South, they are demanding that we rethink the logos-based project of universities in South Africa. Their struggle is critically about how knowledge is implicated as a shaping force in lives which are still defined by colonial governmentality.
- Full Text:
- Authors: Garman, Anthea
- Date: 2018
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/158416 , vital:40182 , ISBN 978-3-319-93958-2 , https://0-doi.org.wam.seals.ac.za/10.1007/978-3-319-93958-2
- Description: Student activists in South Africa have put the decolonisation of higher education firmly on the agenda, demanding that researchers and teachers pay attention to something in particular that is very hard to hear and very possibly unhearable. These young, black South Africans are the intellectual force upon whom we are depending for the altered future of our country. We cannot change the circumstances which continue to frustrate and anger them without paying particular attention to them. Taking on the knowledge bases and knowledge generation in the Global South, they are demanding that we rethink the logos-based project of universities in South Africa. Their struggle is critically about how knowledge is implicated as a shaping force in lives which are still defined by colonial governmentality.
- Full Text:
Whose PARty was this? The dilemmas of a participatory action research process of evaluating a social enterprise.
- Lovell, Jacqueline, Akhurst, Jacqueline E
- Authors: Lovell, Jacqueline , Akhurst, Jacqueline E
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/436926 , vital:73317 , ISBN 978-3-319-74721-7 , https://doi.org/10.1007/978-3-319-74721-7_24
- Description: Participatory action research aims to reduce power differentials in research. In this chapter we problematise the blurred boundaries when a participant becomes a researcher. We re-flect on a PhD undertaken by the first author who was a mem-ber of a social enterprise in the UK that provided user-led re-search and training with a diversity of communities. Experienc-es of ten members of the collective were gathered through creative arts-based methodologies designed to be inclusive. We describe three tensions that arose when trialling participa-tory video production, when data analysis could not be under-taken collaboratively, and when reflecting on the solitary nature of PhD thesis writing. We outline the ways these tensions were worked through and explore ways of writing about participatory research in a PhD thesis.
- Full Text:
- Authors: Lovell, Jacqueline , Akhurst, Jacqueline E
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/436926 , vital:73317 , ISBN 978-3-319-74721-7 , https://doi.org/10.1007/978-3-319-74721-7_24
- Description: Participatory action research aims to reduce power differentials in research. In this chapter we problematise the blurred boundaries when a participant becomes a researcher. We re-flect on a PhD undertaken by the first author who was a mem-ber of a social enterprise in the UK that provided user-led re-search and training with a diversity of communities. Experienc-es of ten members of the collective were gathered through creative arts-based methodologies designed to be inclusive. We describe three tensions that arose when trialling participa-tory video production, when data analysis could not be under-taken collaboratively, and when reflecting on the solitary nature of PhD thesis writing. We outline the ways these tensions were worked through and explore ways of writing about participatory research in a PhD thesis.
- Full Text:
William Plomer’s Turbott Wolfe: An Anatomy
- Authors: Cornwell, Gareth D N
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/458233 , vital:75725 , https://hdl.handle.net/10520/EJC-f74f98d81
- Description: Turbott Wolfe (1925) was indubitably the most controversial South African novel of its day, and – whatever their opinion of its merits – contemporary reviewers were unanimous in recording the excitement, shock or at least discomfort of a revelatory experience.1 Almost a century later, the novel’s stylistic exuberance and formal eccentricity, its grammatica jocosa, seem as fresh as ever. And while we cannot hope to recover an adequate sense of its original iconoclastic impact, historical distance offers us the compensation of perspective: specifically, a perspective in which Turbott Wolfe appears less politically radical than at first supposed, and one that may help us to understand the explosions of recidivist racism that continue to undermine social relations in South Africa, almost a quarter of a century after the advent of democracy.
- Full Text:
- Authors: Cornwell, Gareth D N
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/458233 , vital:75725 , https://hdl.handle.net/10520/EJC-f74f98d81
- Description: Turbott Wolfe (1925) was indubitably the most controversial South African novel of its day, and – whatever their opinion of its merits – contemporary reviewers were unanimous in recording the excitement, shock or at least discomfort of a revelatory experience.1 Almost a century later, the novel’s stylistic exuberance and formal eccentricity, its grammatica jocosa, seem as fresh as ever. And while we cannot hope to recover an adequate sense of its original iconoclastic impact, historical distance offers us the compensation of perspective: specifically, a perspective in which Turbott Wolfe appears less politically radical than at first supposed, and one that may help us to understand the explosions of recidivist racism that continue to undermine social relations in South Africa, almost a quarter of a century after the advent of democracy.
- Full Text:
Witches & villains: the nasty tales
- Authors: Dalldorf, Tamaryn
- Date: 2018
- Subjects: South African fiction (English) -- 21st century , Short stories, South African (English) -- 21st century , Fairy tales -- 21st century
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/63087 , vital:28362
- Description: My thesis compromises a variety of short stories which are modern re-writes of dark fairy tales. Fairy Tales often explore the dark side of human nature and in these stories I focus on the voices of female villains and the strange psychology which drives them. I find Fairy Tales absorbing because they reveal the vulnerabilities, dreams and fears of the human consciousness. My stories contain some satirical expositions of human nature and society. My influences are the anthology of short stories, “My mother She Killed Me and My Father He Ate Me”, The Grimm Fairy Tales (original) and The Fairy Tales of Charles Perrault as well as the writing of Horacio Moya, Angela Carter and Alissa Nutting for their dark satire and mockery of social eccentricities. Kate Bernheimer’s “Form is Fairy Tale and Fairy Tale is Form” is very influential in terms of the style it recommends in writing such as: “every day magic”, “flatness” (a form of narration), abstraction and intuitive logic.
- Full Text:
- Authors: Dalldorf, Tamaryn
- Date: 2018
- Subjects: South African fiction (English) -- 21st century , Short stories, South African (English) -- 21st century , Fairy tales -- 21st century
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/63087 , vital:28362
- Description: My thesis compromises a variety of short stories which are modern re-writes of dark fairy tales. Fairy Tales often explore the dark side of human nature and in these stories I focus on the voices of female villains and the strange psychology which drives them. I find Fairy Tales absorbing because they reveal the vulnerabilities, dreams and fears of the human consciousness. My stories contain some satirical expositions of human nature and society. My influences are the anthology of short stories, “My mother She Killed Me and My Father He Ate Me”, The Grimm Fairy Tales (original) and The Fairy Tales of Charles Perrault as well as the writing of Horacio Moya, Angela Carter and Alissa Nutting for their dark satire and mockery of social eccentricities. Kate Bernheimer’s “Form is Fairy Tale and Fairy Tale is Form” is very influential in terms of the style it recommends in writing such as: “every day magic”, “flatness” (a form of narration), abstraction and intuitive logic.
- Full Text:
Women’s perceptions of successful financial retirement planning
- Authors: Durrheim, Meghan
- Date: 2018
- Subjects: Women -- Retirement -- South Africa -- Makhanda , Retirement -- Planning , Retirement income -- Planning , Women -- Finance, Personal , Retired women -- Finance, Personal , Regression analysis
- Language: English
- Type: text , Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/60339 , vital:27771
- Description: Financial retirement planning is an important component in ensuring that individuals accumulate sufficient wealth for retirement. Previous research suggests that many individuals are unable to accumulate sufficient wealth for retirement with the problem being particularly acute for women as they tend to spend less time planning financially for retirement when compared to men. Consequently, many women are unable to accumulate sufficient wealth for retirement. Despite the growing need to investigate women’s financial retirement planning, much research tends to focus on financial retirement planning for males. Consequently, there is a growing need to investigate women’s perceptions of successful financial retirement planning, particularly in Grahamstown. After conducting an in-depth literature study and using the study done by Doa (2014), six independent variables were identified: values, time horizon, attitudes, working life-cycle, risk tolerance and financial literacy. These independent variables were identified as factors which could potentially influence women’s perceptions of successful financial retirement planning. A set of hypothesis were formulated to test the relationship between these independent variables and the dependent variable (women’s perceptions of successful financial retirement planning). The study comprised of 101 participants. A principle component analysis was performed to determine the key variables, with the relevant independent factors being renamed: cultural values, personal values, affective attitudes, time horizon knowledge, time horizon consideration, risk tolerance, financial literacy. An ordinal logit regression analysis was then conducted on these renamed variables to determine the influence of these key independent variables on the dependent variable. After controlling for a set of demographic variables the results of the ordinal logit regression analysis revealed that only affective attitudes, time horizon knowledge, and personal values had a significant relationship with women’s perceptions of successful financial retirement planning. Cronbach’s alpha revealed that the measuring instrument of the significant extracted factors was reliable, while Pearson product moment was used to determine correlations between extracted key independent variables and the dependent variable. The investigation into women’s perceptions of successful financial retirement planning enabled insightful information to be gathered which adds to the body of knowledge. In addition, recommendations were formulated in an attempt to assist women when making financial retirement decisions.
- Full Text:
- Authors: Durrheim, Meghan
- Date: 2018
- Subjects: Women -- Retirement -- South Africa -- Makhanda , Retirement -- Planning , Retirement income -- Planning , Women -- Finance, Personal , Retired women -- Finance, Personal , Regression analysis
- Language: English
- Type: text , Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/60339 , vital:27771
- Description: Financial retirement planning is an important component in ensuring that individuals accumulate sufficient wealth for retirement. Previous research suggests that many individuals are unable to accumulate sufficient wealth for retirement with the problem being particularly acute for women as they tend to spend less time planning financially for retirement when compared to men. Consequently, many women are unable to accumulate sufficient wealth for retirement. Despite the growing need to investigate women’s financial retirement planning, much research tends to focus on financial retirement planning for males. Consequently, there is a growing need to investigate women’s perceptions of successful financial retirement planning, particularly in Grahamstown. After conducting an in-depth literature study and using the study done by Doa (2014), six independent variables were identified: values, time horizon, attitudes, working life-cycle, risk tolerance and financial literacy. These independent variables were identified as factors which could potentially influence women’s perceptions of successful financial retirement planning. A set of hypothesis were formulated to test the relationship between these independent variables and the dependent variable (women’s perceptions of successful financial retirement planning). The study comprised of 101 participants. A principle component analysis was performed to determine the key variables, with the relevant independent factors being renamed: cultural values, personal values, affective attitudes, time horizon knowledge, time horizon consideration, risk tolerance, financial literacy. An ordinal logit regression analysis was then conducted on these renamed variables to determine the influence of these key independent variables on the dependent variable. After controlling for a set of demographic variables the results of the ordinal logit regression analysis revealed that only affective attitudes, time horizon knowledge, and personal values had a significant relationship with women’s perceptions of successful financial retirement planning. Cronbach’s alpha revealed that the measuring instrument of the significant extracted factors was reliable, while Pearson product moment was used to determine correlations between extracted key independent variables and the dependent variable. The investigation into women’s perceptions of successful financial retirement planning enabled insightful information to be gathered which adds to the body of knowledge. In addition, recommendations were formulated in an attempt to assist women when making financial retirement decisions.
- Full Text:
Wood preservation with gold hydroxyapatite system
- Ion, Rodica-Mariana, Nyokong, Tebello, Nwahara, Nnamdi, Suica-Bunghez, Ioana-Raluca, Iancu, Lorena, Teodorescu, Sofia, Dulama, Ioana D, Stirbescu, Raluca M, Gheboianu, Anca, Grigorescu, Ramona M
- Authors: Ion, Rodica-Mariana , Nyokong, Tebello , Nwahara, Nnamdi , Suica-Bunghez, Ioana-Raluca , Iancu, Lorena , Teodorescu, Sofia , Dulama, Ioana D , Stirbescu, Raluca M , Gheboianu, Anca , Grigorescu, Ramona M
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/187840 , vital:44702 , xlink:href="https://doi.org/10.1186/s40494-018-0202-5"
- Description: Over centuries, the external factors such as fire, low temperature, light or microbiological agents, act on the wood and induce some degradation processes, sometimes irreversible, identified by discoloration, fragility and unsightly appearance. Although there are numerous literature reports about different nanomaterials used for preservation and restoration of wood surfaces (calcium hydroxides, magnesium hydroxides, hydroxyapatite, or even organic resins as Paraloid B72), in this paper it is proposed a new system—gold hydroxyapatite (AuHAp), tested on the hazelnut wood samples (young and aged specimens), as a new solution for preservation of some wooden artifacts. This paper addresses a broad range of analytical methods: X-ray diffraction, UV–Vis spectrophotometry, Fourier transformed infrared spectroscopy, Raman spectroscopy, scanning electron microscopy with energy dispersive spectroscopy, chromatic parameters and hardness test. Also, humidity sorption/desorption measurements are used for humidity sorption and desorption evaluation. The adsorption and desorption tests determined the hydroscopic sorption properties of the wood specimens by measuring the mass of the specimens in equilibrium with air at a specific temperature and RH. All the results concluded that after the application of the new system on the hazelnut wood surface, a well distributed and uniform layer consisting from AuHAp systems with a network aspect are observed, which covers the wood vessels and fibers, filling the voids and stopping the wood weathering process, more accentuated at aged wood than at the young species.
- Full Text:
- Authors: Ion, Rodica-Mariana , Nyokong, Tebello , Nwahara, Nnamdi , Suica-Bunghez, Ioana-Raluca , Iancu, Lorena , Teodorescu, Sofia , Dulama, Ioana D , Stirbescu, Raluca M , Gheboianu, Anca , Grigorescu, Ramona M
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/187840 , vital:44702 , xlink:href="https://doi.org/10.1186/s40494-018-0202-5"
- Description: Over centuries, the external factors such as fire, low temperature, light or microbiological agents, act on the wood and induce some degradation processes, sometimes irreversible, identified by discoloration, fragility and unsightly appearance. Although there are numerous literature reports about different nanomaterials used for preservation and restoration of wood surfaces (calcium hydroxides, magnesium hydroxides, hydroxyapatite, or even organic resins as Paraloid B72), in this paper it is proposed a new system—gold hydroxyapatite (AuHAp), tested on the hazelnut wood samples (young and aged specimens), as a new solution for preservation of some wooden artifacts. This paper addresses a broad range of analytical methods: X-ray diffraction, UV–Vis spectrophotometry, Fourier transformed infrared spectroscopy, Raman spectroscopy, scanning electron microscopy with energy dispersive spectroscopy, chromatic parameters and hardness test. Also, humidity sorption/desorption measurements are used for humidity sorption and desorption evaluation. The adsorption and desorption tests determined the hydroscopic sorption properties of the wood specimens by measuring the mass of the specimens in equilibrium with air at a specific temperature and RH. All the results concluded that after the application of the new system on the hazelnut wood surface, a well distributed and uniform layer consisting from AuHAp systems with a network aspect are observed, which covers the wood vessels and fibers, filling the voids and stopping the wood weathering process, more accentuated at aged wood than at the young species.
- Full Text:
Woody plant encroachment in arid and mesic South African savanna-grasslands: same picture, different story?
- Authors: Skowno, Andrew Luke
- Date: 2018
- Subjects: Savanna ecology South Africa Eastern Cape , Remote sensing , Woody plants South Africa Eastern Cape , Grasslands South Africa Eastern Cape , Plant invasions South Africa Eastern Cape
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/62603 , vital:28212
- Description: Woody plant encroachment in South Africa’s savanna-grasslands has been considered a rangeland management problem since the early 1900s. This phenomenon, which has been observed globally, is particularly important in Africa given the extent of tropical grassy biomes on the continent and their importance for rural livelihoods. In this study, local and regional scale approaches were used to investigate woody cover change in South Africa across the important savanna-grassland rainfall threshold of 650 mm mean annual precipitation (MAP). The aim was to test this threshold using remote sensing and demographic surveys in order to better understand the patterns, mechanisms and drivers of encroachment. Rates of encroachment and population demographics of Vachelia karroo were compared at arid and mesic savanna sites in the Eastern Cape, using time-series analysis of historical aerial photographs in conjunction with field surveys. Changes in the extent of woodland vs. grassland were then quantified at a national scale (1990-2013) by combining optical and synthetic aperture radar remote sensing data. This produced the first map of woodland- grassland shifts for South Africa and provided the basis for a spatially explicit investigation of the key drivers of change. The local studies revealed higher rates of encroachment at mesic sites than at arid sites, with a correlation between drought and rate of encroachment at the arid site. Vachelia karroo seedlings and stunted saplings were more prevalent at mesic sites than at arid sites and the growth form of adult trees differed significantly between sites. The national remote sensing investigation showed that woodland replaced grassland in over 5% of South Africa’s savanna- grasslands between 1990 and 2014, at rates consistent with other global and regional studies. Spatially explicit models showed a pattern of incremental expansion of woodland along a ‘tree front’ and complex relationships between woodland increase and fire, rainfall, terrain ruggedness and temperature. Overall, the local and regional scale findings of this work highlight the importance of the savanna rainfall threshold (~650 mm MAP) and the presence / absence of fire in understanding savanna dynamics and woody cover change in the context of global drivers such as elevated atmospheric CO2.
- Full Text:
- Authors: Skowno, Andrew Luke
- Date: 2018
- Subjects: Savanna ecology South Africa Eastern Cape , Remote sensing , Woody plants South Africa Eastern Cape , Grasslands South Africa Eastern Cape , Plant invasions South Africa Eastern Cape
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/62603 , vital:28212
- Description: Woody plant encroachment in South Africa’s savanna-grasslands has been considered a rangeland management problem since the early 1900s. This phenomenon, which has been observed globally, is particularly important in Africa given the extent of tropical grassy biomes on the continent and their importance for rural livelihoods. In this study, local and regional scale approaches were used to investigate woody cover change in South Africa across the important savanna-grassland rainfall threshold of 650 mm mean annual precipitation (MAP). The aim was to test this threshold using remote sensing and demographic surveys in order to better understand the patterns, mechanisms and drivers of encroachment. Rates of encroachment and population demographics of Vachelia karroo were compared at arid and mesic savanna sites in the Eastern Cape, using time-series analysis of historical aerial photographs in conjunction with field surveys. Changes in the extent of woodland vs. grassland were then quantified at a national scale (1990-2013) by combining optical and synthetic aperture radar remote sensing data. This produced the first map of woodland- grassland shifts for South Africa and provided the basis for a spatially explicit investigation of the key drivers of change. The local studies revealed higher rates of encroachment at mesic sites than at arid sites, with a correlation between drought and rate of encroachment at the arid site. Vachelia karroo seedlings and stunted saplings were more prevalent at mesic sites than at arid sites and the growth form of adult trees differed significantly between sites. The national remote sensing investigation showed that woodland replaced grassland in over 5% of South Africa’s savanna- grasslands between 1990 and 2014, at rates consistent with other global and regional studies. Spatially explicit models showed a pattern of incremental expansion of woodland along a ‘tree front’ and complex relationships between woodland increase and fire, rainfall, terrain ruggedness and temperature. Overall, the local and regional scale findings of this work highlight the importance of the savanna rainfall threshold (~650 mm MAP) and the presence / absence of fire in understanding savanna dynamics and woody cover change in the context of global drivers such as elevated atmospheric CO2.
- Full Text:
Writing groups as transformative spaces
- Wilmot, Kirstin, McKenna, Sioux
- Authors: Wilmot, Kirstin , McKenna, Sioux
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/${Handle} , vital:44576 , xlink:href="https://doi.org/10.1080/07294360.2018.1450361"
- Description: Curriculum transformation is a central concern for higher education in response to rapidly expanding technologies, globalisation and the widening diversity of the student and staff body. This is particularly true for South Africa, which is still grappling with inequalities and pressure for social redress in its universities. Early responses to supporting students took the form of add-on, ‘deficit-model’ approaches which understood poor student retention and success rates as emerging from students’ lack of neutral literacy ‘skills’. Recent initiatives have begun to adopt more socio-cultural understandings of literacy that seek to challenge traditional power structures and cultivate horizontal peer-orientated spaces for learning with a focus on practice rather than on product. Writing groups, as spaces for academic writing development, embrace this orientation and are argued to provide a transformative framework that foregrounds proactive student learning and experience, while still accommodating disciplinary learning through peer engagement. Drawing on the successful implementation of such forms of support at a research-intensive university, this paper argues that writing groups can play a critical role in both personal (student) transformation and broader curriculum transformation. Data include anonymous questionnaires and surveys with participants and coordinators of the writing groups. An inductive, constant comparative analysis indicated that students feel empowered in this space to develop not only their writing practices but also their transforming identities as scholars. Writing groups were found to provide ‘safe spaces’ where academic practices can be made explicit and where they can be challenged. The paper therefore argues that writing groups can play a small but key role in broader transformation efforts.
- Full Text:
- Authors: Wilmot, Kirstin , McKenna, Sioux
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/${Handle} , vital:44576 , xlink:href="https://doi.org/10.1080/07294360.2018.1450361"
- Description: Curriculum transformation is a central concern for higher education in response to rapidly expanding technologies, globalisation and the widening diversity of the student and staff body. This is particularly true for South Africa, which is still grappling with inequalities and pressure for social redress in its universities. Early responses to supporting students took the form of add-on, ‘deficit-model’ approaches which understood poor student retention and success rates as emerging from students’ lack of neutral literacy ‘skills’. Recent initiatives have begun to adopt more socio-cultural understandings of literacy that seek to challenge traditional power structures and cultivate horizontal peer-orientated spaces for learning with a focus on practice rather than on product. Writing groups, as spaces for academic writing development, embrace this orientation and are argued to provide a transformative framework that foregrounds proactive student learning and experience, while still accommodating disciplinary learning through peer engagement. Drawing on the successful implementation of such forms of support at a research-intensive university, this paper argues that writing groups can play a critical role in both personal (student) transformation and broader curriculum transformation. Data include anonymous questionnaires and surveys with participants and coordinators of the writing groups. An inductive, constant comparative analysis indicated that students feel empowered in this space to develop not only their writing practices but also their transforming identities as scholars. Writing groups were found to provide ‘safe spaces’ where academic practices can be made explicit and where they can be challenged. The paper therefore argues that writing groups can play a small but key role in broader transformation efforts.
- Full Text:
Yancothulwa ingqambu
- Authors: Komanisi, Nomnikelo
- Date: 2018
- Subjects: Xhosa poetry -- 21st century , Women in literature , Stereotypes (Social psychology) in literature , Xhosa poetry -- 21st century fiction -- History and criticism
- Language: Xhosa
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/63448 , vital:28412
- Description: I have written a collection of isiXhosa poems for my thesis. I was influenced by the conditions in life women often find themselves, as well as the cultural stereotypes that perpetuate these conditions. Writers who have had an impact on my writing are W. B. Rubusana, S. E. K. Mqhayi and J. J. R. Jolobe because of their language, rhythm and the richness of their writing more generally. It is as if they are voices of a past generation who reach out on us, today. More recent American poets such as Amiri Baraka, on the other hand, have shown me how poems can meet you, can come as bullets that pierce your heart, soul and brain. Combining these old and new poetic styles, I intend for my poems to be of value and benefit to women who seek mental, spiritual and physical healing.
- Full Text:
- Authors: Komanisi, Nomnikelo
- Date: 2018
- Subjects: Xhosa poetry -- 21st century , Women in literature , Stereotypes (Social psychology) in literature , Xhosa poetry -- 21st century fiction -- History and criticism
- Language: Xhosa
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/63448 , vital:28412
- Description: I have written a collection of isiXhosa poems for my thesis. I was influenced by the conditions in life women often find themselves, as well as the cultural stereotypes that perpetuate these conditions. Writers who have had an impact on my writing are W. B. Rubusana, S. E. K. Mqhayi and J. J. R. Jolobe because of their language, rhythm and the richness of their writing more generally. It is as if they are voices of a past generation who reach out on us, today. More recent American poets such as Amiri Baraka, on the other hand, have shown me how poems can meet you, can come as bullets that pierce your heart, soul and brain. Combining these old and new poetic styles, I intend for my poems to be of value and benefit to women who seek mental, spiritual and physical healing.
- Full Text:
Yeast-baculovirus synergism: investigating mixed infections for improved management of the false codling moth, Thaumatotibia leucotreta
- Authors: Van der Merwe, Marcél
- Date: 2018
- Subjects: Cryptophlebia leucotreta , Baculoviruses , Yeast , Citrus Diseases and pests , Biological pest control agents , Pests Integrated control
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/62963 , vital:28347
- Description: Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae) or otherwise commonly known as the false codling moth is an indigenous pest of the citrus industry in southern Africa. The pest is highly significant as it impacts negatively on the export of fresh citrus fruits from South Africa to international markets. To control T. leucotreta in South Africa, an integrated pest management (IPM) programme has been implemented. One component of this programme is the baculovirus Cryptophlebia leucotreta granulovirus (CrleGV-SA) which has been formulated into the products Cryptogran™ and Cryptex®. It has previously been reported that there is a mutualistic association between Cydia pomonella (L.) (Lepidoptera: Tortricidae) also known as codling moth, and epiphytic yeasts. Cydia pomonella larval feeding galleries were colonised by yeasts and this, in turn, reduced larval mortality and enhanced larval development. It has been demonstrated in laboratory assays and field trials that combining yeast and brown cane sugar with Cydia pomonella granulovirus (CpGV) significantly increased larval mortality and lowered the proportion of injured apple fruit. This suggests that yeasts can enhance the effectiveness of an insect virus in managing pest larvae. In this study, we proposed to determine which species of yeast occur naturally in the digestive tract, frass and on the epidermis of T. leucotreta larvae and to examine whether any of these yeasts, when combined with the CrleGV-SA, have a synergistic effect in increasing mortality of T. leucotreta larvae. Firstly, Navel oranges infested with T. leucotreta larvae were collected from orchards in Sundays River Valley in Eastern Cape of South Africa. Larvae were extracted and analysed for the presence of yeast on their surface, or in their gut and frass. Four yeasts were isolated from T. leucotreta larvae and identified down to species level via PCR amplification and sequencing of internal transcribed spacer (ITS) region and D1/D2 domain of the large subunit (LSU) of rDNA region. These yeasts were isolated from the frass, epidermis and digestive tract of T. leucotreta larvae. The yeast isolates were identified as Meyerozyma caribbica, Pichia kluyveri, Pichia kudriavzevii and Hanseniaspora opuntiae. A yeast preference assay was conducted on female T. leucotreta moths to examine whether any of the isolated yeast species affected their oviposition preference. Navel oranges were inoculated with the isolated yeast species at a concentration of 6 × 108 cells.ml-1. The assay also included a Brewer’s yeast and distilled water control. Pichia kudriavzevii was shown to be the preferred yeast species for oviposition, as significantly more eggs were deposited on Navel oranges inoculated with this yeast compared to the other treatments. Lastly, a detached fruit bioassay was performed to evaluate the efficacy of mixing P. kudriavzevii with CrleGV-SA to enhance T. leucotreta larvae mortality. Pichia kudriavzevii was selected as it was demonstrated as having an effect on the oviposition preference of female T. leucotreta moths. The concentration at which P. kudriavzevii was applied remained the same as in the preference assay while CrleGV-SA was applied at lethal concentration required to kill 50 % of the population (9.31 × 107 OBs.ml-1). Although an increase in larval mortality was observed between CrleGV-SA being applied alone and the yeast/virus mixture, this result was determined not to be statistically significant. The experiments performed in this study provide a platform for further research into the application of a yeast-virus combination as a novel control option for T. leucotreta in the field. , Thesis (MSc) -- Faculty of Science, Biochemistry and Microbiology, 2018
- Full Text:
- Authors: Van der Merwe, Marcél
- Date: 2018
- Subjects: Cryptophlebia leucotreta , Baculoviruses , Yeast , Citrus Diseases and pests , Biological pest control agents , Pests Integrated control
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/62963 , vital:28347
- Description: Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae) or otherwise commonly known as the false codling moth is an indigenous pest of the citrus industry in southern Africa. The pest is highly significant as it impacts negatively on the export of fresh citrus fruits from South Africa to international markets. To control T. leucotreta in South Africa, an integrated pest management (IPM) programme has been implemented. One component of this programme is the baculovirus Cryptophlebia leucotreta granulovirus (CrleGV-SA) which has been formulated into the products Cryptogran™ and Cryptex®. It has previously been reported that there is a mutualistic association between Cydia pomonella (L.) (Lepidoptera: Tortricidae) also known as codling moth, and epiphytic yeasts. Cydia pomonella larval feeding galleries were colonised by yeasts and this, in turn, reduced larval mortality and enhanced larval development. It has been demonstrated in laboratory assays and field trials that combining yeast and brown cane sugar with Cydia pomonella granulovirus (CpGV) significantly increased larval mortality and lowered the proportion of injured apple fruit. This suggests that yeasts can enhance the effectiveness of an insect virus in managing pest larvae. In this study, we proposed to determine which species of yeast occur naturally in the digestive tract, frass and on the epidermis of T. leucotreta larvae and to examine whether any of these yeasts, when combined with the CrleGV-SA, have a synergistic effect in increasing mortality of T. leucotreta larvae. Firstly, Navel oranges infested with T. leucotreta larvae were collected from orchards in Sundays River Valley in Eastern Cape of South Africa. Larvae were extracted and analysed for the presence of yeast on their surface, or in their gut and frass. Four yeasts were isolated from T. leucotreta larvae and identified down to species level via PCR amplification and sequencing of internal transcribed spacer (ITS) region and D1/D2 domain of the large subunit (LSU) of rDNA region. These yeasts were isolated from the frass, epidermis and digestive tract of T. leucotreta larvae. The yeast isolates were identified as Meyerozyma caribbica, Pichia kluyveri, Pichia kudriavzevii and Hanseniaspora opuntiae. A yeast preference assay was conducted on female T. leucotreta moths to examine whether any of the isolated yeast species affected their oviposition preference. Navel oranges were inoculated with the isolated yeast species at a concentration of 6 × 108 cells.ml-1. The assay also included a Brewer’s yeast and distilled water control. Pichia kudriavzevii was shown to be the preferred yeast species for oviposition, as significantly more eggs were deposited on Navel oranges inoculated with this yeast compared to the other treatments. Lastly, a detached fruit bioassay was performed to evaluate the efficacy of mixing P. kudriavzevii with CrleGV-SA to enhance T. leucotreta larvae mortality. Pichia kudriavzevii was selected as it was demonstrated as having an effect on the oviposition preference of female T. leucotreta moths. The concentration at which P. kudriavzevii was applied remained the same as in the preference assay while CrleGV-SA was applied at lethal concentration required to kill 50 % of the population (9.31 × 107 OBs.ml-1). Although an increase in larval mortality was observed between CrleGV-SA being applied alone and the yeast/virus mixture, this result was determined not to be statistically significant. The experiments performed in this study provide a platform for further research into the application of a yeast-virus combination as a novel control option for T. leucotreta in the field. , Thesis (MSc) -- Faculty of Science, Biochemistry and Microbiology, 2018
- Full Text:
Young men’s talk about menstruation and hegemonic masculinity in the South African context: a discursive analysis
- Authors: Glover, Jonathan M
- Date: 2018
- Subjects: Menstruation -- Social aspects -- -- South Africa -- Eastern Cape , Hegemony -- South Africa -- Eastern Cape , Masculinity -- South Africa -- Eastern Cape , Sex role -- South Africa -- Eastern Cape , Men -- Attitudes , Men -- Psychology , Human body -- Social aspects -- South Africa -- Eastern Cape , Men's studies -- South Africa -- Eastern Cape
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/60244 , vital:27758
- Description: Current research in the sub-Saharan and other resource poor contexts indicates the largely negative social constructions of menstruation and menstruating women. Young men have been shown to reproduce these negative constructions and reinforce the stigmatized status of menstruation in these contexts. To my knowledge no studies have examined the ways in which young men talk about menstruation and menstruating women in South Africa. In this research, I aimed to explore the ways in which young men (in a resource poor area in the Eastern Cape) talk about menstruation in with their male peers in a focus group context and how this talk serves to enable specific subject positions (both masculine and feminine) that may reproduce, comply with and resist constructions of hegemonic masculinity (as outlined in previous South African research). By drawing on Raewyn Connell’s influential framework of masculinities and augmenting this with Margaret Wetherell and Nigel Edley’s contributions, this research adds to the growing body of research on masculinities in the South African context. I utilized a discursive framework in which to understand the interpretative repertoires drawn on in everyday talk about menstruation and the specific subject positions made available by these. Purposive sampling was used to recruit a total of 37 participants from two former Department of Education and Training schools in the Eastern Cape. Participants were young ‘black’ men with a mean age of 18.3 In analyzing and interpreting the data two overarching patterns emerged. In the first, the participants discursively distanced themselves from menstruation (and femininity in general) in order to avoid possible marginalisation and subordination in relation to local hegemonic masculine ideals. In doing this, the participants drew on a number of interpretative repertoires including: a dualistic repertoire, a bad (versus ideal) femininity repertoire and an abject femininity repertoire, which assisted in creating numerous subject positions. These subject positions allowed the young men to align themselves closer to hegemonic masculine ideals, and create distance by positioning menstruating women as the ‘other’. In the second overarching pattern, menstruation was constructed as a threat to masculine identity; within this construction, the young men discursively negotiated the ideological dilemmas surrounding this ‘highly feminine’ topic in ways that bolstered their positions within the gender hierarchy. Overall, hegemonic masculinities in this context were discursively reproduced and complied with in the participants’ accounts.
- Full Text:
- Authors: Glover, Jonathan M
- Date: 2018
- Subjects: Menstruation -- Social aspects -- -- South Africa -- Eastern Cape , Hegemony -- South Africa -- Eastern Cape , Masculinity -- South Africa -- Eastern Cape , Sex role -- South Africa -- Eastern Cape , Men -- Attitudes , Men -- Psychology , Human body -- Social aspects -- South Africa -- Eastern Cape , Men's studies -- South Africa -- Eastern Cape
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/60244 , vital:27758
- Description: Current research in the sub-Saharan and other resource poor contexts indicates the largely negative social constructions of menstruation and menstruating women. Young men have been shown to reproduce these negative constructions and reinforce the stigmatized status of menstruation in these contexts. To my knowledge no studies have examined the ways in which young men talk about menstruation and menstruating women in South Africa. In this research, I aimed to explore the ways in which young men (in a resource poor area in the Eastern Cape) talk about menstruation in with their male peers in a focus group context and how this talk serves to enable specific subject positions (both masculine and feminine) that may reproduce, comply with and resist constructions of hegemonic masculinity (as outlined in previous South African research). By drawing on Raewyn Connell’s influential framework of masculinities and augmenting this with Margaret Wetherell and Nigel Edley’s contributions, this research adds to the growing body of research on masculinities in the South African context. I utilized a discursive framework in which to understand the interpretative repertoires drawn on in everyday talk about menstruation and the specific subject positions made available by these. Purposive sampling was used to recruit a total of 37 participants from two former Department of Education and Training schools in the Eastern Cape. Participants were young ‘black’ men with a mean age of 18.3 In analyzing and interpreting the data two overarching patterns emerged. In the first, the participants discursively distanced themselves from menstruation (and femininity in general) in order to avoid possible marginalisation and subordination in relation to local hegemonic masculine ideals. In doing this, the participants drew on a number of interpretative repertoires including: a dualistic repertoire, a bad (versus ideal) femininity repertoire and an abject femininity repertoire, which assisted in creating numerous subject positions. These subject positions allowed the young men to align themselves closer to hegemonic masculine ideals, and create distance by positioning menstruating women as the ‘other’. In the second overarching pattern, menstruation was constructed as a threat to masculine identity; within this construction, the young men discursively negotiated the ideological dilemmas surrounding this ‘highly feminine’ topic in ways that bolstered their positions within the gender hierarchy. Overall, hegemonic masculinities in this context were discursively reproduced and complied with in the participants’ accounts.
- Full Text:
Zimbabwe mobilizes: ICAC's shift from Coup de Grăce to Cultural Coup
- Simbao, Ruth K, Chikukwa, Raphael, Ogonga. Jimmy, Bickle, Berry, Pereira, Marie H, Altass, Dulcie A, Chikowero, Mhoze, Fall, N'Goné
- Authors: Simbao, Ruth K , Chikukwa, Raphael , Ogonga. Jimmy , Bickle, Berry , Pereira, Marie H , Altass, Dulcie A , Chikowero, Mhoze , Fall, N'Goné
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145665 , vital:38456 , https://0-doi.org.wam.seals.ac.za/10.1162/afar_a_00399
- Description: The International Conference on African Cultures (ICAC) was held at the National Gallery of Zimbabwe in Harare from September 11–13, 2017. Eight delegates write their reflections on the importance of this Africa-based event.
- Full Text:
- Authors: Simbao, Ruth K , Chikukwa, Raphael , Ogonga. Jimmy , Bickle, Berry , Pereira, Marie H , Altass, Dulcie A , Chikowero, Mhoze , Fall, N'Goné
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/145665 , vital:38456 , https://0-doi.org.wam.seals.ac.za/10.1162/afar_a_00399
- Description: The International Conference on African Cultures (ICAC) was held at the National Gallery of Zimbabwe in Harare from September 11–13, 2017. Eight delegates write their reflections on the importance of this Africa-based event.
- Full Text:
Zooming in: an ethnographic study of visual journalism for smartphones - journalistic roles and routines at South Africa’s largest graphics unit, Graphics24
- Authors: Gouws, Andries Jacobus
- Date: 2018
- Subjects: Journalism -- Technological innovations -- South Africa , Smartphones , Visual communication -- Digital techniques , News Web sites -- South Africa , Online journalism -- South Africa , Information visualization , Graphic arts , Graphics24 , Netwerk24
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/63154 , vital:28368
- Description: This study examines the changing roles of graphics journalists in the digital era at Graphics24, the largest information graphics newsroom in South Africa, in the context of their work for Netwerk24, an online news site published in Afrikaans with a strong focus on mobile-first news. The study examines the discursive construction of these new journalistic roles in the digital era where even the core conceptualisation of what journalism is, is being re-examined. It considers external factors affecting the discourse of change, drawing on a hierarchy of influences analytical model, as well as norms specific to the creation of information graphics. Data for this study was gathered by using ethnographic immersion and semi-structured interviews. This study specifically looks at graphics journalists working in a mobile-first environment, and how the pressures of producing information graphics for consumption on smartphones affects their roles. Evidence of two widely differing discourses in the Graphics24 and Netwerk24 newsrooms was found. Visual journalists in this study have created a discourse around being distinct “service providers”, rather than mobile-first journalists, who do not see the need for full integration in the fast-paced mobile news environment of Netwerk24. Word-centric journalists have, by contrast, created a mobile-first discourse. They experience the separateness of the graphics team as a barrier that impedes the creation of good information graphics for mobile phone consumption. Although this is a very localised study in a very particular context, this study contributes to broader thinking in what is a very under-researched field: The changing roles of visual journalists in the digital era and the discursive construction of these roles. The study suggests that even in the digital era where the definition of newsrooms has become much more fluid and less fixed physically, ethnographic methods can still offer a meaningful way to explore journalistic roles.
- Full Text:
- Authors: Gouws, Andries Jacobus
- Date: 2018
- Subjects: Journalism -- Technological innovations -- South Africa , Smartphones , Visual communication -- Digital techniques , News Web sites -- South Africa , Online journalism -- South Africa , Information visualization , Graphic arts , Graphics24 , Netwerk24
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/63154 , vital:28368
- Description: This study examines the changing roles of graphics journalists in the digital era at Graphics24, the largest information graphics newsroom in South Africa, in the context of their work for Netwerk24, an online news site published in Afrikaans with a strong focus on mobile-first news. The study examines the discursive construction of these new journalistic roles in the digital era where even the core conceptualisation of what journalism is, is being re-examined. It considers external factors affecting the discourse of change, drawing on a hierarchy of influences analytical model, as well as norms specific to the creation of information graphics. Data for this study was gathered by using ethnographic immersion and semi-structured interviews. This study specifically looks at graphics journalists working in a mobile-first environment, and how the pressures of producing information graphics for consumption on smartphones affects their roles. Evidence of two widely differing discourses in the Graphics24 and Netwerk24 newsrooms was found. Visual journalists in this study have created a discourse around being distinct “service providers”, rather than mobile-first journalists, who do not see the need for full integration in the fast-paced mobile news environment of Netwerk24. Word-centric journalists have, by contrast, created a mobile-first discourse. They experience the separateness of the graphics team as a barrier that impedes the creation of good information graphics for mobile phone consumption. Although this is a very localised study in a very particular context, this study contributes to broader thinking in what is a very under-researched field: The changing roles of visual journalists in the digital era and the discursive construction of these roles. The study suggests that even in the digital era where the definition of newsrooms has become much more fluid and less fixed physically, ethnographic methods can still offer a meaningful way to explore journalistic roles.
- Full Text:
‘I don’t belong nowhere really’: the figure of the London migrant in Dan Jacobson’s ‘A Long Way from London’ and Jean Rhys’s ‘Let Them Call It Jazz’
- Naidu, Samantha, Thorpe, Andrea
- Authors: Naidu, Samantha , Thorpe, Andrea
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68422 , vital:29254 , https://doi.org/10.1080/10131752.2018.1461477
- Description: Publisher version , In this article we compare and contrast the figure of the migrant, central to Dan Jacobson’s short story ‘A Long Way from London’ ([1953] 1958. A Long Way from London and other stories. London: Weidenfeld & Nicholson), and to Jean Rhys’s short story ‘Let Them Call It Jazz’ ([1962] 1987. The Collected Stories. New York: Norton), both of which are set in London in the early to mid-twentieth century. The main argument is that these figures, as migrants in London from South Africa and the Caribbean respectively, similarly occupy a liminal space despite stark differences in class, race and gender. In both stories this liminal space is described through evocations of London as a hostile diasporic space, lacking in hospitality, and experienced by the migrant figure as a place of confinement and incarceration. Also, both stories utilize the technique of silence or lacunae when it comes to issues of specific discrimination and abuse, such as racism or sexual exploitation. For the purposes of comparison, the character Manwera from ‘A Long Way from London’ and, Selina, the protagonist of ‘Let Them Call It Jazz’, are selected for analysis. Particularly, their respective responses (Manwera’s pride and dignity, and Selina’s recovery after a breakdown, and her musical talent) to the exigencies of migration are suggestive of ‘adaptive strength’ (Steve Vertovec and Robin Cohen [1999] 2001. Migration, Diasporas and Transnationalism. Cheltenham and Northampton MA: Elgar Reference Collection, xviii), a common feature in transnational literature which attempts to celebrate liminality and multiplicity as key characteristics of a transnational subjectivity. In addition, the protagonist of ‘A Long Way from London’, Arthur, offers a contrast to Manwera and Selina, not only because of race and class, but because he is depicted as having adapted to and assimilated into British culture, while being strangely detached from and ambivalent about both homeland and diasporic home. Varying forms of adaptive strength are portrayed in both stories, but they close with intimations of bleak futures for the migrant figures. The essay thus concludes with the observation that in these two stories, the figure of the London migrant is rendered as facing further grave challenges, and that all three figures ‘belong nowhere’ (Rhys [1962] 1987 Rhys, Jean. [1962] 1987. The Collected Stories. New York: Norton. [Google Scholar] , 175).
- Full Text: false
- Authors: Naidu, Samantha , Thorpe, Andrea
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68422 , vital:29254 , https://doi.org/10.1080/10131752.2018.1461477
- Description: Publisher version , In this article we compare and contrast the figure of the migrant, central to Dan Jacobson’s short story ‘A Long Way from London’ ([1953] 1958. A Long Way from London and other stories. London: Weidenfeld & Nicholson), and to Jean Rhys’s short story ‘Let Them Call It Jazz’ ([1962] 1987. The Collected Stories. New York: Norton), both of which are set in London in the early to mid-twentieth century. The main argument is that these figures, as migrants in London from South Africa and the Caribbean respectively, similarly occupy a liminal space despite stark differences in class, race and gender. In both stories this liminal space is described through evocations of London as a hostile diasporic space, lacking in hospitality, and experienced by the migrant figure as a place of confinement and incarceration. Also, both stories utilize the technique of silence or lacunae when it comes to issues of specific discrimination and abuse, such as racism or sexual exploitation. For the purposes of comparison, the character Manwera from ‘A Long Way from London’ and, Selina, the protagonist of ‘Let Them Call It Jazz’, are selected for analysis. Particularly, their respective responses (Manwera’s pride and dignity, and Selina’s recovery after a breakdown, and her musical talent) to the exigencies of migration are suggestive of ‘adaptive strength’ (Steve Vertovec and Robin Cohen [1999] 2001. Migration, Diasporas and Transnationalism. Cheltenham and Northampton MA: Elgar Reference Collection, xviii), a common feature in transnational literature which attempts to celebrate liminality and multiplicity as key characteristics of a transnational subjectivity. In addition, the protagonist of ‘A Long Way from London’, Arthur, offers a contrast to Manwera and Selina, not only because of race and class, but because he is depicted as having adapted to and assimilated into British culture, while being strangely detached from and ambivalent about both homeland and diasporic home. Varying forms of adaptive strength are portrayed in both stories, but they close with intimations of bleak futures for the migrant figures. The essay thus concludes with the observation that in these two stories, the figure of the London migrant is rendered as facing further grave challenges, and that all three figures ‘belong nowhere’ (Rhys [1962] 1987 Rhys, Jean. [1962] 1987. The Collected Stories. New York: Norton. [Google Scholar] , 175).
- Full Text: false
‘There is nothing to hold onto here’: complicity and vulnerability in Gavin Krastin’s On Seeing Red and Other Fantasies (2015)
- Authors: Smit, Sonja
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/156352 , vital:39981 , DOI: 10.1080/10137548.2018.1553626
- Description: In this article, I analyse some of the ways in which Gavin Krastin’s On Seeing Red and Other Fantasies (2015) engages with outrage and protest in a self-reflexive way. The idea of art as means to question and institute change in society, is contentious and my discussion here focuses on how forms of resistance, are easily subsumed within a capitalist context.
- Full Text:
- Authors: Smit, Sonja
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/156352 , vital:39981 , DOI: 10.1080/10137548.2018.1553626
- Description: In this article, I analyse some of the ways in which Gavin Krastin’s On Seeing Red and Other Fantasies (2015) engages with outrage and protest in a self-reflexive way. The idea of art as means to question and institute change in society, is contentious and my discussion here focuses on how forms of resistance, are easily subsumed within a capitalist context.
- Full Text:
‘They tell you about the risks’: Exploring sources of sexuality education among very young adolescents in rural Mpumalanga
- Essop, R, Tolla, T, Lynch, Ingrid, Mokoae, M
- Authors: Essop, R , Tolla, T , Lynch, Ingrid , Mokoae, M
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/453282 , vital:75242 , https://hdl.handle.net/10520/EJC-10de5bde91
- Description: Early adolescence (ages 10 - 14) is a crucial stage of development. The importance of early intervention in improving adolescent sexual and reproductive health (SRH) is increasingly acknowledged. Yet, school-based sexuality education largely focuses on older adolescents, leaving very young adolescents to contend with conflicting information from different sources. This study responds to the need for contextually nuanced research with very young adolescents, which can inform policy and programmes aimed at improving their SRH outcomes.
- Full Text:
- Authors: Essop, R , Tolla, T , Lynch, Ingrid , Mokoae, M
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/453282 , vital:75242 , https://hdl.handle.net/10520/EJC-10de5bde91
- Description: Early adolescence (ages 10 - 14) is a crucial stage of development. The importance of early intervention in improving adolescent sexual and reproductive health (SRH) is increasingly acknowledged. Yet, school-based sexuality education largely focuses on older adolescents, leaving very young adolescents to contend with conflicting information from different sources. This study responds to the need for contextually nuanced research with very young adolescents, which can inform policy and programmes aimed at improving their SRH outcomes.
- Full Text:
“Don’t forget to be awesome”: the role of social learning as a component of belonging in virtual communities: a case study of the Youtube fan community “Nerdfighteria”
- Authors: Steenkamp, Elri Colleen
- Date: 2018
- Subjects: Nerdfighteria (Online) , Social learning , Online social networks , Belonging (Social psychology) , Communities of practice , YouTube (Firm)
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/63753 , vital:28484
- Description: The growth of the Internet has allowed fans who consume various media products, to interact and convene with other who share similar interests in online fan communities. Historically the study of fans has focused on pleasure and enjoyment as the main motivating factors why individual fans join, stay and participate in fan communities. This study, however, suggests that learning as a component of belonging has been underestimated within contemporary fan studies. Close examination of the literature of fan studies and the social practices of online fan communities reveal that these spaces may serve as fertile spaces for learning and the sharing of knowledge. Daily learning occurs within multiple spheres, including personal interests, peer culture, and academic content; all elements which can be found within fan communities. This study used the social learning theory “communities of practice” (CoP) model developed by Wenger (1998) to understand of this element of learning and knowledge sharing that seems to take places within fan communities. This study explores learning as a component of belonging to online fan communities by using the fan community of the YouTube personalities Vlogbrothers, which has named itself Nerdfighteria, as a case study. Through a qualitative research approach, which includes participation observation methods and qualitative interviews, this thesis has analysed the fan community Nerdfighteria, and used two Nerdfighter fan Facebook groups, the global NERDFIGHTEIRIA and local Nerdfighters South Africa, as case studies to evaluate whether the elements of learning taking place within these spaces serves as a motivating factor for belonging and participation. The results of this research support the idea that learning plays a role within the fan community Nerdfighteria and thus that it functions as a CoP. Fans within the global NERDFIGHTERIA Facebook group use this fan space to discuss and debate content related to their media of choice; thereby learning and acquiring knowledge as a CoP. The Nerdfighters South Africa Facebook group, despite the learning potential, fails to function as a CoP because it is no longer functionally allows for shared learning. Online fan communities, this research found, have the potential to serve as functioning communities of practice (CoP) only if they embody the characteristics and practicalities consistent with a learning space. Overall these fan groups may be categorised as communities of interests but sub-sections within these communities fit the criteria of a community of practice due to the kind of learning that is taking place. This research supports an alternative, yet promising, approach to the study of fan online communities which prioritises learning.
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- Authors: Steenkamp, Elri Colleen
- Date: 2018
- Subjects: Nerdfighteria (Online) , Social learning , Online social networks , Belonging (Social psychology) , Communities of practice , YouTube (Firm)
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/63753 , vital:28484
- Description: The growth of the Internet has allowed fans who consume various media products, to interact and convene with other who share similar interests in online fan communities. Historically the study of fans has focused on pleasure and enjoyment as the main motivating factors why individual fans join, stay and participate in fan communities. This study, however, suggests that learning as a component of belonging has been underestimated within contemporary fan studies. Close examination of the literature of fan studies and the social practices of online fan communities reveal that these spaces may serve as fertile spaces for learning and the sharing of knowledge. Daily learning occurs within multiple spheres, including personal interests, peer culture, and academic content; all elements which can be found within fan communities. This study used the social learning theory “communities of practice” (CoP) model developed by Wenger (1998) to understand of this element of learning and knowledge sharing that seems to take places within fan communities. This study explores learning as a component of belonging to online fan communities by using the fan community of the YouTube personalities Vlogbrothers, which has named itself Nerdfighteria, as a case study. Through a qualitative research approach, which includes participation observation methods and qualitative interviews, this thesis has analysed the fan community Nerdfighteria, and used two Nerdfighter fan Facebook groups, the global NERDFIGHTEIRIA and local Nerdfighters South Africa, as case studies to evaluate whether the elements of learning taking place within these spaces serves as a motivating factor for belonging and participation. The results of this research support the idea that learning plays a role within the fan community Nerdfighteria and thus that it functions as a CoP. Fans within the global NERDFIGHTERIA Facebook group use this fan space to discuss and debate content related to their media of choice; thereby learning and acquiring knowledge as a CoP. The Nerdfighters South Africa Facebook group, despite the learning potential, fails to function as a CoP because it is no longer functionally allows for shared learning. Online fan communities, this research found, have the potential to serve as functioning communities of practice (CoP) only if they embody the characteristics and practicalities consistent with a learning space. Overall these fan groups may be categorised as communities of interests but sub-sections within these communities fit the criteria of a community of practice due to the kind of learning that is taking place. This research supports an alternative, yet promising, approach to the study of fan online communities which prioritises learning.
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“Forgetting Ntaba kaNdoda”: reciting performative memories at the Ntaba kaNdoda Monument
- Authors: Mama, Luthando Vukile James
- Date: 2018
- Subjects: Memorialization , Collective memory in art , Memorials in art , Memorials -- South Africa -- Dimbaza , Imperialism in art , Ntaba kaNdoda Monument (Dimbaza, South Africa)
- Language: English
- Type: text , Thesis , Masters , MFA
- Identifier: http://hdl.handle.net/10962/63866 , vital:28499
- Description: “Forgetting Ntaba kaNdoda”: Reciting Performative Memories at the Ntaba kaNdoda Monument serves as a theoretical examination of the Ntaba kaNdoda Monument as a commemorative marker. My mini-thesis unpacks the notions of memory and performative memorialisation at a nationalist memorial in the former Ciskei by examining the concepts of place, memory and memorialisation, which are theoretically integral in my professional practice. This research initiates an investigation into the effects on memory in a situation where the construction of the Monument disrupted an efficacious memorialisation by the communities of Ntaba kaNdoda. In my accompanying MFA exhibition Forgetting Ntaba kaNdoda, I explore notions of place, memory and memorialisation through installations of a variety of photographic processes that are based on what I call ‘de-monumental’ and performative monuments (Widrich2014). The written component of my MFA submission relates directly to my professional art practice, developing and situating it within a relevant context. In my mini-thesis, I consider photographers working with notions of place, memory and memorialisation. Lebohang Kganye and Nassim Rouchiche’s works retrace and recall past memory in the present, while David Goldblatt and Cedric Nunn, who have photographed the Ntaba kaNdoda Monument, point the viewer to the values and histories of the communities most affected by colonialism and apartheid. These photographers’ works operate as mnemonic devices that seek to translate a lived experience at a particular place. I use Widrich’s (2009; 2014) conception of “performative monuments”, Lippard’s (1997) “sense of place” and Nora’s (1989) “lieu[x] de mémoire” and “milieux de mémoire” in approaching my professional art practice and my research into the Ntaba kaNdoda memorial. Using these entwining nodes of theories in formulating what I term ‘demonumentalisation’ in my photography practice at the Ntaba kaNdoda Monument, my photography functions as both performative memorialisation and de-monumentalisation. Remembrance, using photography as a vehicle to represent this notion at Ntaba kaNdoda, transcends the materiality of the Monument. My exhibition, in conjunction with this mini-thesis, therefore reframes and reconfigures theNtaba kaNdoda Monument as a multiplex memory place.
- Full Text:
- Authors: Mama, Luthando Vukile James
- Date: 2018
- Subjects: Memorialization , Collective memory in art , Memorials in art , Memorials -- South Africa -- Dimbaza , Imperialism in art , Ntaba kaNdoda Monument (Dimbaza, South Africa)
- Language: English
- Type: text , Thesis , Masters , MFA
- Identifier: http://hdl.handle.net/10962/63866 , vital:28499
- Description: “Forgetting Ntaba kaNdoda”: Reciting Performative Memories at the Ntaba kaNdoda Monument serves as a theoretical examination of the Ntaba kaNdoda Monument as a commemorative marker. My mini-thesis unpacks the notions of memory and performative memorialisation at a nationalist memorial in the former Ciskei by examining the concepts of place, memory and memorialisation, which are theoretically integral in my professional practice. This research initiates an investigation into the effects on memory in a situation where the construction of the Monument disrupted an efficacious memorialisation by the communities of Ntaba kaNdoda. In my accompanying MFA exhibition Forgetting Ntaba kaNdoda, I explore notions of place, memory and memorialisation through installations of a variety of photographic processes that are based on what I call ‘de-monumental’ and performative monuments (Widrich2014). The written component of my MFA submission relates directly to my professional art practice, developing and situating it within a relevant context. In my mini-thesis, I consider photographers working with notions of place, memory and memorialisation. Lebohang Kganye and Nassim Rouchiche’s works retrace and recall past memory in the present, while David Goldblatt and Cedric Nunn, who have photographed the Ntaba kaNdoda Monument, point the viewer to the values and histories of the communities most affected by colonialism and apartheid. These photographers’ works operate as mnemonic devices that seek to translate a lived experience at a particular place. I use Widrich’s (2009; 2014) conception of “performative monuments”, Lippard’s (1997) “sense of place” and Nora’s (1989) “lieu[x] de mémoire” and “milieux de mémoire” in approaching my professional art practice and my research into the Ntaba kaNdoda memorial. Using these entwining nodes of theories in formulating what I term ‘demonumentalisation’ in my photography practice at the Ntaba kaNdoda Monument, my photography functions as both performative memorialisation and de-monumentalisation. Remembrance, using photography as a vehicle to represent this notion at Ntaba kaNdoda, transcends the materiality of the Monument. My exhibition, in conjunction with this mini-thesis, therefore reframes and reconfigures theNtaba kaNdoda Monument as a multiplex memory place.
- Full Text: