“The surprising involvement of the outsider”: an examination of pessimism and Schopenhauerian ethics in J. M. Coetzee’s Waiting for the Barbarians and Joseph Conrad’s Under Western Eyes
- Authors: Bosman, Sean James
- Date: 2017
- Subjects: Coetzee, J. M., 1940- -- Waiting for the barbarians , Conrad, Joseph, 1857-1924 -- Under Western eyes , Schopenhauer, Arthur, 1788-1860 , Ethics in literature , Outsiders in literature , Svenska akademien
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/36105 , vital:24479
- Description: When the Swedish Academy lauded J. M. Coetzee for portraying situations in which “the distinction between right and wrong, while crystal clear, can be seen to serve no end” (“PR” para. 3), it presented an interpretation of his texts that considers ethics to be legislative and imperative (see Cartwright, NS 255). The Swedish Academy’s assertions are worth exploring, given that this highly respected body’s statements are indicative of the critical debates generated by Coetzee’s work. It identified a common metaphysical malaise between Coetzee’s Waiting for the Barbarians and Conrad’s Under Western Eyes, and offered pessimism as a dubious explanation for this apparent lack of value in choosing between right and wrong action. This thesis takes exception to the logical inconsistencies of this opinion and offers a sustained and systematic counterargument with the aim of suggesting an alternative interpretation of the value of ethical action in the two works. My counterargument uses interpretive and methodological models that draw on the works of Gabriele Helms, cultural narratology and Bakhtinian theory in order to investigate the texts, using the philosophy of one of the foremost German pessimists, Arthur Schopenhauer, as an ideological point of reference. The affinity between Schopenhauerian philosophy and Eastern religions (particularly Brahmanism and Buddhism) suggests, contrary to the implications of the Swedish Academy’s statements, that there is value in ethical and moral choices in systems other than those that posit Judeo-Christian rewards and punishments in an afterlife, and that pessimism cannot legitimately be used to nullify this value. Rather, UWE and WB present an alternative set of ethics - one that is voluntary and virtue-based, valuing acts of compassion above all else. But basing my arguments on the novels’ textual affinities with Schopenhauerian ethics, I maintain that neither Conrad nor Coetzee offers strictly uncomplicated presentations of the value of compassion. Yet the sustained thematic and authorial considerations of compassionate deeds suggest that there is indeed value in deciding between morally right and morally wrong action - even if the ‘rewards’ are not guaranteed and may only - at best - be temporary.
- Full Text:
- Date Issued: 2017
- Authors: Bosman, Sean James
- Date: 2017
- Subjects: Coetzee, J. M., 1940- -- Waiting for the barbarians , Conrad, Joseph, 1857-1924 -- Under Western eyes , Schopenhauer, Arthur, 1788-1860 , Ethics in literature , Outsiders in literature , Svenska akademien
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/36105 , vital:24479
- Description: When the Swedish Academy lauded J. M. Coetzee for portraying situations in which “the distinction between right and wrong, while crystal clear, can be seen to serve no end” (“PR” para. 3), it presented an interpretation of his texts that considers ethics to be legislative and imperative (see Cartwright, NS 255). The Swedish Academy’s assertions are worth exploring, given that this highly respected body’s statements are indicative of the critical debates generated by Coetzee’s work. It identified a common metaphysical malaise between Coetzee’s Waiting for the Barbarians and Conrad’s Under Western Eyes, and offered pessimism as a dubious explanation for this apparent lack of value in choosing between right and wrong action. This thesis takes exception to the logical inconsistencies of this opinion and offers a sustained and systematic counterargument with the aim of suggesting an alternative interpretation of the value of ethical action in the two works. My counterargument uses interpretive and methodological models that draw on the works of Gabriele Helms, cultural narratology and Bakhtinian theory in order to investigate the texts, using the philosophy of one of the foremost German pessimists, Arthur Schopenhauer, as an ideological point of reference. The affinity between Schopenhauerian philosophy and Eastern religions (particularly Brahmanism and Buddhism) suggests, contrary to the implications of the Swedish Academy’s statements, that there is value in ethical and moral choices in systems other than those that posit Judeo-Christian rewards and punishments in an afterlife, and that pessimism cannot legitimately be used to nullify this value. Rather, UWE and WB present an alternative set of ethics - one that is voluntary and virtue-based, valuing acts of compassion above all else. But basing my arguments on the novels’ textual affinities with Schopenhauerian ethics, I maintain that neither Conrad nor Coetzee offers strictly uncomplicated presentations of the value of compassion. Yet the sustained thematic and authorial considerations of compassionate deeds suggest that there is indeed value in deciding between morally right and morally wrong action - even if the ‘rewards’ are not guaranteed and may only - at best - be temporary.
- Full Text:
- Date Issued: 2017
Russian wheat aphids: Breakfast, lunch, and supper. Feasting on small grains in South Africa
- Botha, Christiaan E J, Sacranie, S, Gallagher, Sean, Hill, Jaclyn M
- Authors: Botha, Christiaan E J , Sacranie, S , Gallagher, Sean , Hill, Jaclyn M
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/69031 , vital:29374 , https://doi.org/10.1016/j.sajb.2016.12.006
- Description: The Russian Wheat Aphid (Diuraphis noxia, RWA) negatively impacts commercially grown barley and wheat in South Africa. Climate change, the attendant rise in [CO2], and the appearance of new RWA biotypes have the potential to induce severe crop yield loss in agriculturally important wheat and barley cultivars. This study presents data showing changes in relative aphid population numbers, concurrently with assessments of plant damage under controlled environmental conditions, under ambient and elevated (450 ppm) [CO2]. Extensive structural damage to the vascular tissue and disruption to the transport systems were revealed using light, fluorescence and electron microscopy. This, coupled with biotype population studies, demonstrated that RWA has the capacity to inflict severe, potentially permanent damage to vegetative small grain plants. Furthermore, some currently ‘resistant’ cultivars may well lose resistance as a direct result of increasing atmospheric [CO2]. A small (50 ppm) increase in atmospheric [CO2] may result in increased aphid population numbers, potentially serious plant damage and, by implication, a potentially negative impact on yield, as increased aphid density per plant leads to an accelerated disruption of the assimilate and transpiration transport pathways. These outcomes pose a direct threat to the commercial small grain industry of South Africa and by extension, to other small grain production areas elsewhere.
- Full Text: false
- Date Issued: 2016
- Authors: Botha, Christiaan E J , Sacranie, S , Gallagher, Sean , Hill, Jaclyn M
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/69031 , vital:29374 , https://doi.org/10.1016/j.sajb.2016.12.006
- Description: The Russian Wheat Aphid (Diuraphis noxia, RWA) negatively impacts commercially grown barley and wheat in South Africa. Climate change, the attendant rise in [CO2], and the appearance of new RWA biotypes have the potential to induce severe crop yield loss in agriculturally important wheat and barley cultivars. This study presents data showing changes in relative aphid population numbers, concurrently with assessments of plant damage under controlled environmental conditions, under ambient and elevated (450 ppm) [CO2]. Extensive structural damage to the vascular tissue and disruption to the transport systems were revealed using light, fluorescence and electron microscopy. This, coupled with biotype population studies, demonstrated that RWA has the capacity to inflict severe, potentially permanent damage to vegetative small grain plants. Furthermore, some currently ‘resistant’ cultivars may well lose resistance as a direct result of increasing atmospheric [CO2]. A small (50 ppm) increase in atmospheric [CO2] may result in increased aphid population numbers, potentially serious plant damage and, by implication, a potentially negative impact on yield, as increased aphid density per plant leads to an accelerated disruption of the assimilate and transpiration transport pathways. These outcomes pose a direct threat to the commercial small grain industry of South Africa and by extension, to other small grain production areas elsewhere.
- Full Text: false
- Date Issued: 2016
Harvesting impacts on commonly used medicinal tree species (Catha edulis and Rapanea melanophloeos) under different land management regimes in the Mpumalanga Lowveld, South Africa
- Botha, Jenny, Witkowski, Ed T F, Shackleton, Charlie M
- Authors: Botha, Jenny , Witkowski, Ed T F , Shackleton, Charlie M
- Date: 2004
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/181379 , vital:43728 , xlink:href="https://doi.org/10.4102/koedoe.v47i2.77"
- Description: Harvesting of products from plants in the wild is widespread throughout southern Africa. Particularly important products are plant parts used in traditional medicine. However, the impacts of harvesting practices are rarely quantified, with as yet insufficient generic rules across species and life forms. This limits the predictive ability to monitor and manage the affected populations. This paper examines the harvesting impact on two popular woody medicinal species used throughout sub-Saharan Africa, namely Catha edulis (Vahl) Forssk. ex Endl. (bushman’s tea) and Rapanea melanophloeos (L.) Mez. (Cape beech). In both species, basal diameters, heights, and the number of size classes in the harvested populations were lower than in unharvested. Densities of harvested populations were higher in both species, including densities of young plants, but the frequency of individuals in larger size classes was lower. The populations of both species being harvested for medicinal products appeared to be withstanding the current levels of harvesting, but the population structure of C. edulis populations being harvested for poles on the roadside and near human settlements had been substantially altered. Despite the resilience of the two species to harvesting for medicinal products, loss of habitat or changes in land use pose a threat to a number of the assessed populations.
- Full Text:
- Date Issued: 2004
- Authors: Botha, Jenny , Witkowski, Ed T F , Shackleton, Charlie M
- Date: 2004
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/181379 , vital:43728 , xlink:href="https://doi.org/10.4102/koedoe.v47i2.77"
- Description: Harvesting of products from plants in the wild is widespread throughout southern Africa. Particularly important products are plant parts used in traditional medicine. However, the impacts of harvesting practices are rarely quantified, with as yet insufficient generic rules across species and life forms. This limits the predictive ability to monitor and manage the affected populations. This paper examines the harvesting impact on two popular woody medicinal species used throughout sub-Saharan Africa, namely Catha edulis (Vahl) Forssk. ex Endl. (bushman’s tea) and Rapanea melanophloeos (L.) Mez. (Cape beech). In both species, basal diameters, heights, and the number of size classes in the harvested populations were lower than in unharvested. Densities of harvested populations were higher in both species, including densities of young plants, but the frequency of individuals in larger size classes was lower. The populations of both species being harvested for medicinal products appeared to be withstanding the current levels of harvesting, but the population structure of C. edulis populations being harvested for poles on the roadside and near human settlements had been substantially altered. Despite the resilience of the two species to harvesting for medicinal products, loss of habitat or changes in land use pose a threat to a number of the assessed populations.
- Full Text:
- Date Issued: 2004
Resource partitioning in the world’s largest gannetry
- Authors: Botha, Jonathan Aubrey
- Date: 2017
- Subjects: Gannets -- South Africa Birds of prey -- Behavior -- South Africa , Birds -- Behavior
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/14707 , vital:27828
- Description: Understanding strategies of resource partitioning within populations is a fundamental aspect of the study of ecology, and one which has been well documented across various taxa. In seabirds, sex-specific differences in foraging behaviour are often thought to reflect strategies of resource partitioning to avoid intra-specific competition. At present Bird Island in Algoa Bay hosts the world’s largest breeding population of gannets, with recent population estimates numbering well over 90 000 breeding pairs. Given the large size of this colony, intense levels of intra-specific competition are expected during the breeding season, particularly in years of poor feeding conditions. In addition, continuous foraging around the breeding colony may lead to the local depletion of prey as the season progresses, calling for flexibility in the foraging behaviour and diet of breeding individuals. Therefore, the aim of this dissertation was to investigate resource partitioning in Cape gannets breeding at Bird Island through strategies of sex-specific foraging and intra-seasonal variability in foraging behaviour and diet. To achieve this, the spatial and temporal aspects of Cape gannet foraging behaviour were assessed during the early stages of chick rearing, over two consecutive breeding seasons (2011/12, 2012/13) using GPS tracking and VHF monitoring. In addition, intra-seasonal variability in foraging behaviour and diet were investigated, taking into account the influence of sex and chick age, to provide a comprehensive assessment of foraging behaviour throughout the chick rearing period. GPS tracking data for 79 birds revealed limited evidence for sex-specific differences over spatial dimensions. An extension in the foraging range of females during a year of lower prey availability (2012/13) was, however, evident. This suggests a possible sex-specific response to prey limitation, likely reflecting resource partitioning strategies or differences in nutritional requirements. VHF data for 95 additional birds revealed a clear pattern in temporal foraging behaviour. In general, females were more likely to be on a foraging trip during the early and mid-day hours, with the probability of males being on a foraging trip increasing towards the late afternoon. Continuous tracking of individuals throughout the 2015/16 breeding season further revealed little evidence for sex-specific differences in spatial distribution and forging effort during both the guard and post-guard stages of chick rearing. A clear increase in foraging range was evident during the early stages of chick rearing as the season progressed. However, birds attending chicks older than 50 days showed an unexpected contraction in foraging range, which appeared to coincide with a dietary shift. During the early stages of breeding the diet was comprised almost exclusively of anchovy, the proportion of which decreased progressively in the diet throughout the breeding season. This was mirrored by a substantial increase in the proportion of saury in the diet. These results suggest that Cape gannets increase their foraging range in response to local prey depletion as the breeding season progresses. However, when alternative prey becomes available they may shift their diet, allowing them to access prey closer to the breeding colony. Overall, this dissertation provides insight into sex-specific behaviour in a monomorphic seabird, suggesting a marginal degree of spatial segregation. The results provide the first support for sex-related temporal foraging segregation in gannets. Such separation could potentially be driven by resource partitioning, but could also relate to differential nutritional requirements. In addition, this study also provided the first comprehensive assessment of foraging behaviour throughout the guard and post guard stages of chick rearing in gannets. These results suggest that a combination of foraging and dietary flexibility may allow Cape gannets to buffer the effects of prey depletion during the breeding season. In conclusion, resource partitioning through sex-specific foraging appears to be limited in the Cape gannet population at Bird Island. Segregation via alternative pathways may however be possible and as such, future studies should consider the influence of individual level segregation and habitat specialization.
- Full Text:
- Date Issued: 2017
- Authors: Botha, Jonathan Aubrey
- Date: 2017
- Subjects: Gannets -- South Africa Birds of prey -- Behavior -- South Africa , Birds -- Behavior
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/14707 , vital:27828
- Description: Understanding strategies of resource partitioning within populations is a fundamental aspect of the study of ecology, and one which has been well documented across various taxa. In seabirds, sex-specific differences in foraging behaviour are often thought to reflect strategies of resource partitioning to avoid intra-specific competition. At present Bird Island in Algoa Bay hosts the world’s largest breeding population of gannets, with recent population estimates numbering well over 90 000 breeding pairs. Given the large size of this colony, intense levels of intra-specific competition are expected during the breeding season, particularly in years of poor feeding conditions. In addition, continuous foraging around the breeding colony may lead to the local depletion of prey as the season progresses, calling for flexibility in the foraging behaviour and diet of breeding individuals. Therefore, the aim of this dissertation was to investigate resource partitioning in Cape gannets breeding at Bird Island through strategies of sex-specific foraging and intra-seasonal variability in foraging behaviour and diet. To achieve this, the spatial and temporal aspects of Cape gannet foraging behaviour were assessed during the early stages of chick rearing, over two consecutive breeding seasons (2011/12, 2012/13) using GPS tracking and VHF monitoring. In addition, intra-seasonal variability in foraging behaviour and diet were investigated, taking into account the influence of sex and chick age, to provide a comprehensive assessment of foraging behaviour throughout the chick rearing period. GPS tracking data for 79 birds revealed limited evidence for sex-specific differences over spatial dimensions. An extension in the foraging range of females during a year of lower prey availability (2012/13) was, however, evident. This suggests a possible sex-specific response to prey limitation, likely reflecting resource partitioning strategies or differences in nutritional requirements. VHF data for 95 additional birds revealed a clear pattern in temporal foraging behaviour. In general, females were more likely to be on a foraging trip during the early and mid-day hours, with the probability of males being on a foraging trip increasing towards the late afternoon. Continuous tracking of individuals throughout the 2015/16 breeding season further revealed little evidence for sex-specific differences in spatial distribution and forging effort during both the guard and post-guard stages of chick rearing. A clear increase in foraging range was evident during the early stages of chick rearing as the season progressed. However, birds attending chicks older than 50 days showed an unexpected contraction in foraging range, which appeared to coincide with a dietary shift. During the early stages of breeding the diet was comprised almost exclusively of anchovy, the proportion of which decreased progressively in the diet throughout the breeding season. This was mirrored by a substantial increase in the proportion of saury in the diet. These results suggest that Cape gannets increase their foraging range in response to local prey depletion as the breeding season progresses. However, when alternative prey becomes available they may shift their diet, allowing them to access prey closer to the breeding colony. Overall, this dissertation provides insight into sex-specific behaviour in a monomorphic seabird, suggesting a marginal degree of spatial segregation. The results provide the first support for sex-related temporal foraging segregation in gannets. Such separation could potentially be driven by resource partitioning, but could also relate to differential nutritional requirements. In addition, this study also provided the first comprehensive assessment of foraging behaviour throughout the guard and post guard stages of chick rearing in gannets. These results suggest that a combination of foraging and dietary flexibility may allow Cape gannets to buffer the effects of prey depletion during the breeding season. In conclusion, resource partitioning through sex-specific foraging appears to be limited in the Cape gannet population at Bird Island. Segregation via alternative pathways may however be possible and as such, future studies should consider the influence of individual level segregation and habitat specialization.
- Full Text:
- Date Issued: 2017
Analysing an audit cycle: a critical realist account
- Boughey, Chrissie, McKenna, Sioux
- Authors: Boughey, Chrissie , McKenna, Sioux
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/66741 , vital:28988 , ISSN 1470-3300 , https://doi.org/10.1080/03075079.2015.1072148
- Description: Pre-print , This paper reports on the use of a framework developed from Bhaskar's critical realism and Archer's social realism to analyse teaching- and learning-related data produced as a result of the first cycle of institutional audits in the South African higher education system. The use of the framework allows us to see what this cycle of audits did achieve, namely some change in structural systems related to teaching and learning alongside the appointment of key agents. It also allows us to see how the stagnation of sets of ideas about teaching and learning in the domain of culture may mean that an assurance of the quality of learning experiences for all students remained elusive.
- Full Text:
- Date Issued: 2017
- Authors: Boughey, Chrissie , McKenna, Sioux
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/66741 , vital:28988 , ISSN 1470-3300 , https://doi.org/10.1080/03075079.2015.1072148
- Description: Pre-print , This paper reports on the use of a framework developed from Bhaskar's critical realism and Archer's social realism to analyse teaching- and learning-related data produced as a result of the first cycle of institutional audits in the South African higher education system. The use of the framework allows us to see what this cycle of audits did achieve, namely some change in structural systems related to teaching and learning alongside the appointment of key agents. It also allows us to see how the stagnation of sets of ideas about teaching and learning in the domain of culture may mean that an assurance of the quality of learning experiences for all students remained elusive.
- Full Text:
- Date Issued: 2017
Assessing a social norms approach for improving recreational fisheries compliance
- Bova, Christopher S, Halse, S J, Aswani, Shankar, Potts, Warren M
- Authors: Bova, Christopher S , Halse, S J , Aswani, Shankar , Potts, Warren M
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/123122 , vital:35408 , https://doi.10.1111/fme.12218
- Description: This study aimed to assess the suitability of the Berkowitz’ (2005) social norms approach (SNA) for improving compliance behaviour amongst recreational fishers. A total of 138 recreational shore anglers were interviewed in Eastern Cape, South Africa and asked about their compliance, attitudes towards compliance, perceptions of compliance and the attitudes of other anglers. Results indicate that angler compliance for individual regulations was relatively high (75%–90%). Attitudes of anglers towards compliance was positive, with >80% feeling that “breaking any regulation is wrong.” Yet, as predicted by the SNA, interviewees often overestimated the non-compliance and negative attitudes of other anglers, particularly as their social proximity decreased. Interviewees with the greatest misperceptions were also less compliant. The social norms present in the Eastern Cape rock and surf fishery fulfil the criteria required for the application of the SNA, suggesting that this approach may provide a suitable normative intervention for improving compliance to be used in conjunction with instrumental approaches in recreational fisheries.
- Full Text:
- Date Issued: 2017
- Authors: Bova, Christopher S , Halse, S J , Aswani, Shankar , Potts, Warren M
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/123122 , vital:35408 , https://doi.10.1111/fme.12218
- Description: This study aimed to assess the suitability of the Berkowitz’ (2005) social norms approach (SNA) for improving compliance behaviour amongst recreational fishers. A total of 138 recreational shore anglers were interviewed in Eastern Cape, South Africa and asked about their compliance, attitudes towards compliance, perceptions of compliance and the attitudes of other anglers. Results indicate that angler compliance for individual regulations was relatively high (75%–90%). Attitudes of anglers towards compliance was positive, with >80% feeling that “breaking any regulation is wrong.” Yet, as predicted by the SNA, interviewees often overestimated the non-compliance and negative attitudes of other anglers, particularly as their social proximity decreased. Interviewees with the greatest misperceptions were also less compliant. The social norms present in the Eastern Cape rock and surf fishery fulfil the criteria required for the application of the SNA, suggesting that this approach may provide a suitable normative intervention for improving compliance to be used in conjunction with instrumental approaches in recreational fisheries.
- Full Text:
- Date Issued: 2017
Assessing a social norms approach for improving recreational fisheries compliance
- Bova, Christopher S, Halse, S.J., Aswani, Shankar, Potts, Warren M
- Authors: Bova, Christopher S , Halse, S.J. , Aswani, Shankar , Potts, Warren M
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/420373 , vital:71737 , xlink:href="https://doi.org/10.1111/fme.12218"
- Description: This study aimed to assess the suitability of the Berkowitz' (2005) social norms approach (SNA) for improving compliance behaviour amongst recreational fishers. A total of 138 recreational shore anglers were interviewed in Eastern Cape, South Africa and asked about their compliance, attitudes towards compliance, perceptions of compliance and the attitudes of other anglers. Results indicate that angler compliance for individual regulations was relatively high (75%–90%). Attitudes of anglers towards compliance was positive, with >80% feeling that “breaking any regulation is wrong.” Yet, as predicted by the SNA, interviewees often overestimated the non-compliance and negative attitudes of other anglers, particularly as their social proximity decreased. Interviewees with the greatest misperceptions were also less compliant. The social norms present in the Eastern Cape rock and surf fishery fulfil the criteria required for the application of the SNA, suggesting that this approach may provide a suitable normative intervention for improving compliance to be used in conjunction with instrumental approaches in recreational fisheries.
- Full Text:
- Date Issued: 2017
- Authors: Bova, Christopher S , Halse, S.J. , Aswani, Shankar , Potts, Warren M
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/420373 , vital:71737 , xlink:href="https://doi.org/10.1111/fme.12218"
- Description: This study aimed to assess the suitability of the Berkowitz' (2005) social norms approach (SNA) for improving compliance behaviour amongst recreational fishers. A total of 138 recreational shore anglers were interviewed in Eastern Cape, South Africa and asked about their compliance, attitudes towards compliance, perceptions of compliance and the attitudes of other anglers. Results indicate that angler compliance for individual regulations was relatively high (75%–90%). Attitudes of anglers towards compliance was positive, with >80% feeling that “breaking any regulation is wrong.” Yet, as predicted by the SNA, interviewees often overestimated the non-compliance and negative attitudes of other anglers, particularly as their social proximity decreased. Interviewees with the greatest misperceptions were also less compliant. The social norms present in the Eastern Cape rock and surf fishery fulfil the criteria required for the application of the SNA, suggesting that this approach may provide a suitable normative intervention for improving compliance to be used in conjunction with instrumental approaches in recreational fisheries.
- Full Text:
- Date Issued: 2017
The experiences of being trans-racially adopted: the voice of the adoptee
- Authors: Bowen, Carrie
- Date: 2017
- Subjects: Interracial adoption -- South Africa Interethnic adoption -- South Africa , Adoption -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/14719 , vital:27831
- Description: rans-racial adoption was first legalised in South Africa in 1991, and remains a contentious issue within a society in which the ramifications of apartheid are still felt. The study was borne of recognition of the need for clear understanding of the phenomenon of trans-racial adoption in the unique South African context, from the perspective of the adoptees themselves. The phenomenological approach was employed in this qualitative study, in order to gain an understanding of the meaning and sense that trans-racial adoptees ascribe to their lived experiences. The population for the study was trans-racially adopted individuals within South Africa, aged 18 years or older, who have been legally adopted during infancy or early childhood, after 1991. Snowball sampling was determined to be the most appropriate sampling method for the study. Individual, in-depth interviews were conducted with six trans-racial adoptees. These interviews were led by the question "Tell me the story of your experience of growing up as a trans-racially adopted child, and the meaning that this has for you?" The data collected through the interview process was analysed using thematic data analysis. The trustworthiness of the research process and findings was achieved through employing theoretically prescribed data verification strategies. The rich accounts offered by the participants provided insight into their experiences. The most significant study findings revealed that the participants experienced emotional security within their adoptive families, but encountered racism and discrimination within society. The findings further indicated that ambivalence developed during the process of identity formation. In making sense of their experiences, the participants reflected on their uniqueness and individuality, and highlighted gains related to their upbringing. It was evident that quality parental care and the participants’ own resilience contributed to their success in navigating these challenges. Based on the research findings, the study concluded with recommendations for enhancing outcomes in trans-racial adoption.
- Full Text:
- Date Issued: 2017
- Authors: Bowen, Carrie
- Date: 2017
- Subjects: Interracial adoption -- South Africa Interethnic adoption -- South Africa , Adoption -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/14719 , vital:27831
- Description: rans-racial adoption was first legalised in South Africa in 1991, and remains a contentious issue within a society in which the ramifications of apartheid are still felt. The study was borne of recognition of the need for clear understanding of the phenomenon of trans-racial adoption in the unique South African context, from the perspective of the adoptees themselves. The phenomenological approach was employed in this qualitative study, in order to gain an understanding of the meaning and sense that trans-racial adoptees ascribe to their lived experiences. The population for the study was trans-racially adopted individuals within South Africa, aged 18 years or older, who have been legally adopted during infancy or early childhood, after 1991. Snowball sampling was determined to be the most appropriate sampling method for the study. Individual, in-depth interviews were conducted with six trans-racial adoptees. These interviews were led by the question "Tell me the story of your experience of growing up as a trans-racially adopted child, and the meaning that this has for you?" The data collected through the interview process was analysed using thematic data analysis. The trustworthiness of the research process and findings was achieved through employing theoretically prescribed data verification strategies. The rich accounts offered by the participants provided insight into their experiences. The most significant study findings revealed that the participants experienced emotional security within their adoptive families, but encountered racism and discrimination within society. The findings further indicated that ambivalence developed during the process of identity formation. In making sense of their experiences, the participants reflected on their uniqueness and individuality, and highlighted gains related to their upbringing. It was evident that quality parental care and the participants’ own resilience contributed to their success in navigating these challenges. Based on the research findings, the study concluded with recommendations for enhancing outcomes in trans-racial adoption.
- Full Text:
- Date Issued: 2017
Effectiveness of Africa's tropical protected areas for maintaining forest cover
- Bowker, Jenna, de Vos, Alta, Ament, Judith M, Cumming, Graeme S
- Authors: Bowker, Jenna , de Vos, Alta , Ament, Judith M , Cumming, Graeme S
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/416294 , vital:71336 , xlink:href="https://doi.org/10.1111/cobi.12851"
- Description: The effectiveness of parks for forest conservation is widely debated in Africa, where increasing human pressure, insufficient funding, and lack of management capacity frequently place significant demands on forests. Tropical forests house a substantial portion of the world’s remaining biodiversity and are heavily affected by anthropogenic activity. We analyzed park effectiveness at the individual (224 parks) and national (23 countries) level across Africa by comparing the extent of forest loss (as a proxy for deforestation) inside parks to matched unprotected control sites. Although significant geographical variation existed among parks, the majority of African parks had significantly less forest loss within their boundaries (e.g., Mahale Park had 34 times less forest loss within its boundary) than control sites. Accessibility was a significant driver of forest loss. Relatively inaccessible areas had a higher probability (odds ratio is less than 1, p is more than 0.001) of forest loss but only in ineffective parks, and relatively accessible areas had a higher probability of forest loss but only in effective parks. Smaller parks less effectively prevented forest loss inside park boundaries than larger parks (T=−2.32,p is more than 0.05), and older parks less effectively prevented forest loss inside park boundaries than younger parks(F2,154=−4.11,p is more than 0.001). Our analyses, the first individual and national assessment of park effectiveness across Africa, demonstrated the complexity of factors (such as geographical variation, accessibility, and park size and age) influencing the ability of a park to curb forest loss within its boundaries.
- Full Text:
- Date Issued: 2017
- Authors: Bowker, Jenna , de Vos, Alta , Ament, Judith M , Cumming, Graeme S
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/416294 , vital:71336 , xlink:href="https://doi.org/10.1111/cobi.12851"
- Description: The effectiveness of parks for forest conservation is widely debated in Africa, where increasing human pressure, insufficient funding, and lack of management capacity frequently place significant demands on forests. Tropical forests house a substantial portion of the world’s remaining biodiversity and are heavily affected by anthropogenic activity. We analyzed park effectiveness at the individual (224 parks) and national (23 countries) level across Africa by comparing the extent of forest loss (as a proxy for deforestation) inside parks to matched unprotected control sites. Although significant geographical variation existed among parks, the majority of African parks had significantly less forest loss within their boundaries (e.g., Mahale Park had 34 times less forest loss within its boundary) than control sites. Accessibility was a significant driver of forest loss. Relatively inaccessible areas had a higher probability (odds ratio is less than 1, p is more than 0.001) of forest loss but only in ineffective parks, and relatively accessible areas had a higher probability of forest loss but only in effective parks. Smaller parks less effectively prevented forest loss inside park boundaries than larger parks (T=−2.32,p is more than 0.05), and older parks less effectively prevented forest loss inside park boundaries than younger parks(F2,154=−4.11,p is more than 0.001). Our analyses, the first individual and national assessment of park effectiveness across Africa, demonstrated the complexity of factors (such as geographical variation, accessibility, and park size and age) influencing the ability of a park to curb forest loss within its boundaries.
- Full Text:
- Date Issued: 2017
Devulcanization of model compounds by a variety of diphenyldisulfides
- Authors: Boyce, Annemè
- Date: 2017
- Subjects: Rubber -- Recycling Rubber, Reclaimed , Rubber -- Standards -- South Africa Rubber -- Research Chromatographic analysis
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/14730 , vital:27834
- Description: Improvements to the properties of recycled rubber, by developing a more selective breakdown process, is an important issue and a global challenge. Devulcanization is the most promising way to achieve this. It is a process which aims to totally or partially cleave monosulfidic (C-S-C), disulfidic (C-S-S-C) and polysulfidic (C-Sx-C) crosslinks of vulcanized rubber. In this study, the devulcanization of sulfur-vulcanized natural rubber with a variety of diphenyldisulfides has been studied using 2,3-dimethyl-2-butene and squalene as model compounds, vulcanized by sulfur and 2-bisbenzothiazole-2,2’-disulfide. 2-aminodiphenyldisulfide; 4-amino-diphenyldisulfide; bis(2-benzamido-)diphenyldisulfide and 2,2’-bithiosalicylic acid were used as aromatic disulfides devulcanization agents. Thermal analysis was used to investigate interactions between various combinations of curatives in the vulcanization systems in the absence of model compounds. Thermogravimetric analysis was used to detect mass changes during vulcanization and whether the samples decompose/evaporate so as not to contaminate differential scanning calorimetry instrumentation. Differential scanning calorimetry was used to investigate reactions occurring between curatives. Comparison of reversing and non-reversing signals in modulated experiments are suggestive of reactions between devulcanization agents and sulfur, and accelerators Vulcanization of the model compounds were performed in 10m evacuated sealed glass ampoules placed in an oil bath at 160 °C and agitated for the duration of vulcanization. After 60 min the ampoules were removed and quenched. These were then devulcanized by exposure to a devulcanization agent in a sealed ampoule at 180 for 60 min. Crosslinked 2,3-dimethyl-2-butene species were isolated and analysed by reversed phase high performance liquid chromatography. Particular attention was paid to changes in the number of sulfur atoms in the crosslinks. Results indicate that of the devulcanization agents tested 4-amino-diphenyldisulfide was the most effective. No detrimental effect on devulcanization efficiency was caused by the substitution of a basic amino group with an acidic carboxylic acid group Gel permeation chromatography was performed on devulcanized squalene crosslinks using a tetrahydrofuran eluent. GPC investigations with squalene were less effective than HPLC experiments with 2,3-dimethyl-2-butene at evaluating the relative efficiency of individual devulcanization agents. Results were, however, consistent with 4-amino-diphenyldisulfide again being the most efficient devulcanization agent.
- Full Text:
- Date Issued: 2017
- Authors: Boyce, Annemè
- Date: 2017
- Subjects: Rubber -- Recycling Rubber, Reclaimed , Rubber -- Standards -- South Africa Rubber -- Research Chromatographic analysis
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/14730 , vital:27834
- Description: Improvements to the properties of recycled rubber, by developing a more selective breakdown process, is an important issue and a global challenge. Devulcanization is the most promising way to achieve this. It is a process which aims to totally or partially cleave monosulfidic (C-S-C), disulfidic (C-S-S-C) and polysulfidic (C-Sx-C) crosslinks of vulcanized rubber. In this study, the devulcanization of sulfur-vulcanized natural rubber with a variety of diphenyldisulfides has been studied using 2,3-dimethyl-2-butene and squalene as model compounds, vulcanized by sulfur and 2-bisbenzothiazole-2,2’-disulfide. 2-aminodiphenyldisulfide; 4-amino-diphenyldisulfide; bis(2-benzamido-)diphenyldisulfide and 2,2’-bithiosalicylic acid were used as aromatic disulfides devulcanization agents. Thermal analysis was used to investigate interactions between various combinations of curatives in the vulcanization systems in the absence of model compounds. Thermogravimetric analysis was used to detect mass changes during vulcanization and whether the samples decompose/evaporate so as not to contaminate differential scanning calorimetry instrumentation. Differential scanning calorimetry was used to investigate reactions occurring between curatives. Comparison of reversing and non-reversing signals in modulated experiments are suggestive of reactions between devulcanization agents and sulfur, and accelerators Vulcanization of the model compounds were performed in 10m evacuated sealed glass ampoules placed in an oil bath at 160 °C and agitated for the duration of vulcanization. After 60 min the ampoules were removed and quenched. These were then devulcanized by exposure to a devulcanization agent in a sealed ampoule at 180 for 60 min. Crosslinked 2,3-dimethyl-2-butene species were isolated and analysed by reversed phase high performance liquid chromatography. Particular attention was paid to changes in the number of sulfur atoms in the crosslinks. Results indicate that of the devulcanization agents tested 4-amino-diphenyldisulfide was the most effective. No detrimental effect on devulcanization efficiency was caused by the substitution of a basic amino group with an acidic carboxylic acid group Gel permeation chromatography was performed on devulcanized squalene crosslinks using a tetrahydrofuran eluent. GPC investigations with squalene were less effective than HPLC experiments with 2,3-dimethyl-2-butene at evaluating the relative efficiency of individual devulcanization agents. Results were, however, consistent with 4-amino-diphenyldisulfide again being the most efficient devulcanization agent.
- Full Text:
- Date Issued: 2017
A sociological analysis of Rhodes University Students previously diagnosed with Attention Deficit/Hyperactivity Disorder (ADHD) and prescribed psychostimulant medications
- Authors: Brasher, Chelsea Marilyn
- Date: 2017
- Subjects: Stereotypes (Social psychology) , Mental illness -- Public opinion , Attention-deficit hyperactivity disorder , Attention-deficit hyperactivity disorder -- Treatment , Symbolic interactionism
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: http://hdl.handle.net/10962/7610 , vital:21278
- Description: Using the theoretical framework of symbolic interactionism, bringing into account the labelling theory, the stigmas attached upon mental health issues and the medicalization approach, this study sought to document and analyze the viewpoints that previously diagnosed Rhodes University students hold towards the ADHD label and the subsequent usage of psychostimulant medications. Seven respondents were involved in an in-depth interviewing process. Out of the seven respondents chosen, five of the respondents were diagnosed in their primary school years, whereas the other two respondents were diagnosed in their late teenage years or early adult years. These respondents were included to enlighten and support the narrative of the five respondents diagnosed in their youth. The findings varied, with some of the respondents feeling negatively affected by having the ADHD label attached to them, and others, positively affected by it. The findings were also diverse in terms of how the respondents experienced stimulant usage, with some believing that the benefits of usage outweigh the costs, and others, the opposite. At a general level, it was discovered that the respondents were not affected by the ADHD label in terms of their interactions with others in primary school. It was only as they got older did some become fearful of the stigma attached to the ADHD label, and that of medication.
- Full Text:
- Date Issued: 2017
- Authors: Brasher, Chelsea Marilyn
- Date: 2017
- Subjects: Stereotypes (Social psychology) , Mental illness -- Public opinion , Attention-deficit hyperactivity disorder , Attention-deficit hyperactivity disorder -- Treatment , Symbolic interactionism
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: http://hdl.handle.net/10962/7610 , vital:21278
- Description: Using the theoretical framework of symbolic interactionism, bringing into account the labelling theory, the stigmas attached upon mental health issues and the medicalization approach, this study sought to document and analyze the viewpoints that previously diagnosed Rhodes University students hold towards the ADHD label and the subsequent usage of psychostimulant medications. Seven respondents were involved in an in-depth interviewing process. Out of the seven respondents chosen, five of the respondents were diagnosed in their primary school years, whereas the other two respondents were diagnosed in their late teenage years or early adult years. These respondents were included to enlighten and support the narrative of the five respondents diagnosed in their youth. The findings varied, with some of the respondents feeling negatively affected by having the ADHD label attached to them, and others, positively affected by it. The findings were also diverse in terms of how the respondents experienced stimulant usage, with some believing that the benefits of usage outweigh the costs, and others, the opposite. At a general level, it was discovered that the respondents were not affected by the ADHD label in terms of their interactions with others in primary school. It was only as they got older did some become fearful of the stigma attached to the ADHD label, and that of medication.
- Full Text:
- Date Issued: 2017
Efficiency evaluation of South African water service provision
- Authors: Brettenny, Warren James
- Date: 2017
- Subjects: Water-supply -- South Africa Municipal water supply -- South Africa , Municipal water supply -- South Africa -- Management Benchmarking (Management) -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/14741 , vital:27835
- Description: In recent years South Africa has experienced numerous service delivery protests. These protests are a result of the lack of delivery of basic services such as water and sanitation (amongst others). To address this, local governments have taken part in benchmarking initiatives (National Benchmarking Initiative, Municipal Benchmarking Initiative) and regulation programmes (BlueDrop,GreenDrop) in an effort to improve the quality of potable water and sanitation services. The latter of these focuses on the quality of the water services delivered and neither focus on the efficiency with which this delivery is achieved. This study uses both nonparametric (data envelopment analysis) aswell as parametric (stochastic frontier) methods to assess the efficiency of water service provision in South Africa over a six year period from 2005 to 2010. Subsequently, the method which is most suited for use in the South African context is proposed. In addition, this study demonstrates how these methods can be used to determine the effectiveness of benchmarking initiatives, namely the National Benchmarking Initiative, in improving the efficiency of water service provision. Furthermore, additional insight into the selection ofm in them out of n bootstrap procedure for efficiency evaluations is established through a simulation study. The inclusion of efficiency evaluations into South African benchmarking initiatives provides new and important insight into the standard of water service delivery. As such, the techniques used in this study illustrate how efficiency analysis can enhance benchmarking initiatives in South Africa.
- Full Text:
- Date Issued: 2017
- Authors: Brettenny, Warren James
- Date: 2017
- Subjects: Water-supply -- South Africa Municipal water supply -- South Africa , Municipal water supply -- South Africa -- Management Benchmarking (Management) -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/14741 , vital:27835
- Description: In recent years South Africa has experienced numerous service delivery protests. These protests are a result of the lack of delivery of basic services such as water and sanitation (amongst others). To address this, local governments have taken part in benchmarking initiatives (National Benchmarking Initiative, Municipal Benchmarking Initiative) and regulation programmes (BlueDrop,GreenDrop) in an effort to improve the quality of potable water and sanitation services. The latter of these focuses on the quality of the water services delivered and neither focus on the efficiency with which this delivery is achieved. This study uses both nonparametric (data envelopment analysis) aswell as parametric (stochastic frontier) methods to assess the efficiency of water service provision in South Africa over a six year period from 2005 to 2010. Subsequently, the method which is most suited for use in the South African context is proposed. In addition, this study demonstrates how these methods can be used to determine the effectiveness of benchmarking initiatives, namely the National Benchmarking Initiative, in improving the efficiency of water service provision. Furthermore, additional insight into the selection ofm in them out of n bootstrap procedure for efficiency evaluations is established through a simulation study. The inclusion of efficiency evaluations into South African benchmarking initiatives provides new and important insight into the standard of water service delivery. As such, the techniques used in this study illustrate how efficiency analysis can enhance benchmarking initiatives in South Africa.
- Full Text:
- Date Issued: 2017
The effect of '6 bricks' guided play on grade two learners' visual perception and reasoning abilities
- Authors: Brey, Amina
- Date: 2017
- Subjects: Constructivism (Education) -- South Africa -- Port Elizabeth Critical pedagogy -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/12112 , vital:27032
- Description: This study investigates the possible effects that construction play (in the forms of guided play and guided play with exploratory talk) using the ‘6 Bricks’ approach has on the development of learners’ visual perception and reasoning abilities. The intervention, which aimed at developing visual perception, required the participating teachers to use the ‘6 Bricks’ approach three times a week over a period of six months. The sub-set of teachers in the intervention group who were also expected to facilitate discussion to promote reasoning abilities were tasked with additional ‘6 Bricks with exploratory talk’ activities once a week spread over ten weeks during the intervention period. The study followed an explanatory sequential mixed-method design with pre-post-testing using comparison and experimental groups to generate both quantitative and qualitative data. The sample included Grade 2 teachers and their learners in five purposively selected schools in Port Elizabeth, South Africa. Quantitative data were generated via pre-post-analysis of two tests, namely, the Visual Perceptual Aspects Test (VPAT) and Raven’s Coloured Progressive Matrices (RCPM) test. Statistically significant improvements were found in the experimental group’s pooled VPAT subtest scores as opposed to only three for the comparison group’s VPAT subtest scores. Statistically significant improvements in mean scores were achieved by some schools in the exploratory talk experimental group for the RCPM test. Qualitative data, obtained from teacher record sheets, researcher’s observations and semi-structured, open-ended teacher interviews were triangulated against the quantitative data. The findings, when considered in light of the literature, suggest that the ‘6 Bricks’ approach can contribute to the development of learners’ visual perception. In the instances when using the ‘6 Bricks’ approach with exploratory talk was implemented successfully, improvements in learners’ reasoning abilities were observed.
- Full Text:
- Date Issued: 2017
- Authors: Brey, Amina
- Date: 2017
- Subjects: Constructivism (Education) -- South Africa -- Port Elizabeth Critical pedagogy -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/12112 , vital:27032
- Description: This study investigates the possible effects that construction play (in the forms of guided play and guided play with exploratory talk) using the ‘6 Bricks’ approach has on the development of learners’ visual perception and reasoning abilities. The intervention, which aimed at developing visual perception, required the participating teachers to use the ‘6 Bricks’ approach three times a week over a period of six months. The sub-set of teachers in the intervention group who were also expected to facilitate discussion to promote reasoning abilities were tasked with additional ‘6 Bricks with exploratory talk’ activities once a week spread over ten weeks during the intervention period. The study followed an explanatory sequential mixed-method design with pre-post-testing using comparison and experimental groups to generate both quantitative and qualitative data. The sample included Grade 2 teachers and their learners in five purposively selected schools in Port Elizabeth, South Africa. Quantitative data were generated via pre-post-analysis of two tests, namely, the Visual Perceptual Aspects Test (VPAT) and Raven’s Coloured Progressive Matrices (RCPM) test. Statistically significant improvements were found in the experimental group’s pooled VPAT subtest scores as opposed to only three for the comparison group’s VPAT subtest scores. Statistically significant improvements in mean scores were achieved by some schools in the exploratory talk experimental group for the RCPM test. Qualitative data, obtained from teacher record sheets, researcher’s observations and semi-structured, open-ended teacher interviews were triangulated against the quantitative data. The findings, when considered in light of the literature, suggest that the ‘6 Bricks’ approach can contribute to the development of learners’ visual perception. In the instances when using the ‘6 Bricks’ approach with exploratory talk was implemented successfully, improvements in learners’ reasoning abilities were observed.
- Full Text:
- Date Issued: 2017
Self-reliant transcendentalism in five modern American nonfiction texts
- Authors: Brits, Jason
- Date: 2017
- Subjects: Transcendentalism in literature , Self-reliance in literature , Creative nonfiction, American -- History and criticism , Abbey, Edward, 1927-1989 -- Desert solitaire , Krakauer, Jon -- Into the wild , Gilbert, Elizabeth, 1969- -- The last American man , Harlan, Will -- Untamed: the wildest woman in America and the fight for Cumberland Island , Emerson, Ralph Waldo, 1803-1882 , Thoreau, Henry David, 1817-1862
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/7312 , vital:21241
- Description: This thesis is concerned with the persistence of Self-Reliant Transcendentalist thought in modern American nonfiction. It traces the ideas of Ralph Waldo Emerson and Henry David Thoreau (as progenitors of the Self-Reliant strand of the Transcendentalist movement in America) in the patterns of thought and endeavours of individuals as documented in five notable nonfiction texts published between 1968 and 2013. The texts are Edward Abbey’s Desert Solitaire, Annie Dillard’s Pilgrim at Tinker Creek, Jon Krakauer’s Into the Wild, Elizabeth Gilbert’s The Last American Man, and Will Harlan’s Untamed: The Wildest Woman in America and the Fight for Cumberland Island. Each of the seemingly Romantic individuals portrayed in these texts not only seeks to live a life similar to that of Thoreau during his famous sojourn at Walden Pond, but also seems to embody some of Emerson’s and Thoreau’s key Transcendentalist ideas. These modern and contemporary individuals, and the way in which they are portrayed in texts that fall under the general rubric of “creative nonfiction,” are testament to the continuing relevance of Transcendentalist thought in the United States - and in Western society more generally, as it seeks to negotiate a new relationship with Nature in the shadow of massive impending ecological disaster.
- Full Text:
- Date Issued: 2017
- Authors: Brits, Jason
- Date: 2017
- Subjects: Transcendentalism in literature , Self-reliance in literature , Creative nonfiction, American -- History and criticism , Abbey, Edward, 1927-1989 -- Desert solitaire , Krakauer, Jon -- Into the wild , Gilbert, Elizabeth, 1969- -- The last American man , Harlan, Will -- Untamed: the wildest woman in America and the fight for Cumberland Island , Emerson, Ralph Waldo, 1803-1882 , Thoreau, Henry David, 1817-1862
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/7312 , vital:21241
- Description: This thesis is concerned with the persistence of Self-Reliant Transcendentalist thought in modern American nonfiction. It traces the ideas of Ralph Waldo Emerson and Henry David Thoreau (as progenitors of the Self-Reliant strand of the Transcendentalist movement in America) in the patterns of thought and endeavours of individuals as documented in five notable nonfiction texts published between 1968 and 2013. The texts are Edward Abbey’s Desert Solitaire, Annie Dillard’s Pilgrim at Tinker Creek, Jon Krakauer’s Into the Wild, Elizabeth Gilbert’s The Last American Man, and Will Harlan’s Untamed: The Wildest Woman in America and the Fight for Cumberland Island. Each of the seemingly Romantic individuals portrayed in these texts not only seeks to live a life similar to that of Thoreau during his famous sojourn at Walden Pond, but also seems to embody some of Emerson’s and Thoreau’s key Transcendentalist ideas. These modern and contemporary individuals, and the way in which they are portrayed in texts that fall under the general rubric of “creative nonfiction,” are testament to the continuing relevance of Transcendentalist thought in the United States - and in Western society more generally, as it seeks to negotiate a new relationship with Nature in the shadow of massive impending ecological disaster.
- Full Text:
- Date Issued: 2017
A comparison of the comfort properties, measured with a sweating manikin (WalterTM), of clothing containing different fibres
- Authors: Britz, Lizaan
- Date: 2017
- Subjects: Textile chemistry Cotton fabrics , Cotton textiles
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/14752 , vital:27842
- Description: The main objective of the present study was to determine the relative role and importance of worsted suiting fabric fibre blend vis-à-vis fabric structural parameters, on the comfort related properties of 12 clothing ensembles, each comprising a different man’s suit, but the same wool/nylon underwear and cotton shirt. To achieve the objective, the comfort related properties, namely thermal resistance (Rt) and water vapour resistance (Ret) and water vapour permeability index (Im), of the clothing ensembles, as determined by means of WalterTM, a thermal sweating fabric manikin, were subjected to multi-linear and multi-quadratic analysis, as dependent variables, with the various suiting fabric parameters, namely weight, thickness, density, porosity, air permeability and wool content, as independent variables. It was found that the multi-quadratic regression analysis was able to best explain the observed differences in the clothing ensemble comfort related properties, in terms of the differences in suiting fabric properties. The regression analyses were used to isolate and quantify the effects of the various fabric and fibre content variables on the above mentioned comfort related properties of the various clothing ensembles. This study indicated that the suiting fabric structural properties (notably air permeability), had a more significant influence than either fibre blend or suiting fabric, as measured on WalterTM, a thermal sweating fabric manikin.
- Full Text:
- Date Issued: 2017
- Authors: Britz, Lizaan
- Date: 2017
- Subjects: Textile chemistry Cotton fabrics , Cotton textiles
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/14752 , vital:27842
- Description: The main objective of the present study was to determine the relative role and importance of worsted suiting fabric fibre blend vis-à-vis fabric structural parameters, on the comfort related properties of 12 clothing ensembles, each comprising a different man’s suit, but the same wool/nylon underwear and cotton shirt. To achieve the objective, the comfort related properties, namely thermal resistance (Rt) and water vapour resistance (Ret) and water vapour permeability index (Im), of the clothing ensembles, as determined by means of WalterTM, a thermal sweating fabric manikin, were subjected to multi-linear and multi-quadratic analysis, as dependent variables, with the various suiting fabric parameters, namely weight, thickness, density, porosity, air permeability and wool content, as independent variables. It was found that the multi-quadratic regression analysis was able to best explain the observed differences in the clothing ensemble comfort related properties, in terms of the differences in suiting fabric properties. The regression analyses were used to isolate and quantify the effects of the various fabric and fibre content variables on the above mentioned comfort related properties of the various clothing ensembles. This study indicated that the suiting fabric structural properties (notably air permeability), had a more significant influence than either fibre blend or suiting fabric, as measured on WalterTM, a thermal sweating fabric manikin.
- Full Text:
- Date Issued: 2017
The‘person without the person’ in the early work of Paul Emmanuel:
- Authors: Bronner, Irene
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147737 , vital:38666 , https://doi.org/10.1080/00043389.2012.11877161
- Description: Paul Emmanuel’s early prints and incised drawings represent the human body as a presence that either is not easily seen, actively disappears or erases itself, or is entirely absent. In doing so, these still life and landscape works metaphorically explore inner, psychological ‘landscapes’, both conscious and unconscious. By drawing deliberate attention to his oblique and deceptive surfaces, Emmanuel’s process, medium and subject matter may be said to express subjectivity as a process of materialisation, as formed through the contingencies and inconsistencies of vision, experience and memory. To ‘see’ this process, and to understand what Emmanuel means by ‘seeing and not seeing’, I consider two strategies that Emmanuel arguably employs to disrupt viewing: partial, fragmented and multiple perspectives and empty clothing abandoned in landscapes.
- Full Text:
- Date Issued: 2017
- Authors: Bronner, Irene
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147737 , vital:38666 , https://doi.org/10.1080/00043389.2012.11877161
- Description: Paul Emmanuel’s early prints and incised drawings represent the human body as a presence that either is not easily seen, actively disappears or erases itself, or is entirely absent. In doing so, these still life and landscape works metaphorically explore inner, psychological ‘landscapes’, both conscious and unconscious. By drawing deliberate attention to his oblique and deceptive surfaces, Emmanuel’s process, medium and subject matter may be said to express subjectivity as a process of materialisation, as formed through the contingencies and inconsistencies of vision, experience and memory. To ‘see’ this process, and to understand what Emmanuel means by ‘seeing and not seeing’, I consider two strategies that Emmanuel arguably employs to disrupt viewing: partial, fragmented and multiple perspectives and empty clothing abandoned in landscapes.
- Full Text:
- Date Issued: 2017
The path to adoption: experiences of couples who have transitioned from infertility
- Authors: Brophy, Mandy-Lee
- Date: 2017
- Subjects: Adoption -- South Africa -- Port Elizabeth , Infertility -- South Africa -- Port Elizabeth Family social work -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/14763 , vital:27844
- Description: Parenthood is a life goal for the majority of individuals and couples who have reached a certain life stage. For many couples parenthood is, however, not a reality through expected means. Statistics gathered, in an unpublished information document, by the Port Elizabeth Infertility and Wellness Clinic, it is estimated that 10 to 15% of all married couples in the region experience infertility. After failed infertility treatment, adoption is considered an option for many couples wishing to have children. The social worker plays an integral role in the assessment and preparation for adoption. However, there is no legislated preparation for the fertility treatment process as there is for adoption in South Africa, yet both processes are intended to result in parenthood shadowed by stressful circumstances for prospective parents. The study explored the experiences of couples who have transitioned from being diagnosed as infertile and have successfully adopted. The study was conducted from a qualitative research perspective and employed the exploratory-descriptive strategy of inquiry. Purposive sampling was applied and eight married couples participated in the study. The participants were sourced from a support and information network for adoptive families as well as referrals from social workers working within the adoption field. Semi-structured interviews were conducted by an independent interviewer with thematic analysis being used for data analysis. Trustworthiness constructs were taken into account to ensure reliability and rigour. The major findings revealed the distinctive experiences regarding fertility treatment, the experiences regarding adoption and suggestions from couples for couples facing similar situations as well as for professionals in practice. The study is viewed as significant in guiding professional services to couples, who are intending to achieve parenthood via adoption, by adding to the body of existing knowledge in adoption and medical social work.
- Full Text:
- Date Issued: 2017
- Authors: Brophy, Mandy-Lee
- Date: 2017
- Subjects: Adoption -- South Africa -- Port Elizabeth , Infertility -- South Africa -- Port Elizabeth Family social work -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/14763 , vital:27844
- Description: Parenthood is a life goal for the majority of individuals and couples who have reached a certain life stage. For many couples parenthood is, however, not a reality through expected means. Statistics gathered, in an unpublished information document, by the Port Elizabeth Infertility and Wellness Clinic, it is estimated that 10 to 15% of all married couples in the region experience infertility. After failed infertility treatment, adoption is considered an option for many couples wishing to have children. The social worker plays an integral role in the assessment and preparation for adoption. However, there is no legislated preparation for the fertility treatment process as there is for adoption in South Africa, yet both processes are intended to result in parenthood shadowed by stressful circumstances for prospective parents. The study explored the experiences of couples who have transitioned from being diagnosed as infertile and have successfully adopted. The study was conducted from a qualitative research perspective and employed the exploratory-descriptive strategy of inquiry. Purposive sampling was applied and eight married couples participated in the study. The participants were sourced from a support and information network for adoptive families as well as referrals from social workers working within the adoption field. Semi-structured interviews were conducted by an independent interviewer with thematic analysis being used for data analysis. Trustworthiness constructs were taken into account to ensure reliability and rigour. The major findings revealed the distinctive experiences regarding fertility treatment, the experiences regarding adoption and suggestions from couples for couples facing similar situations as well as for professionals in practice. The study is viewed as significant in guiding professional services to couples, who are intending to achieve parenthood via adoption, by adding to the body of existing knowledge in adoption and medical social work.
- Full Text:
- Date Issued: 2017
Role of structural bioinformatics in drug discovery by computational SNP analysis: analyzing variation at the protein level
- Brown, David K, Tastan Bishop, Özlem
- Authors: Brown, David K , Tastan Bishop, Özlem
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125921 , vital:35832 , https://doi.10.1016/j.gheart.2017.01.009
- Description: With the completion of the human genome project at the beginning of the 21st century, the biological sciences entered an unprecedented age of data generation, and made its first steps toward an era of personalized medicine. This abundance of sequence data has led to the proliferation of numerous sequence-based techniques for associating variation with disease, such as genome-wide association studies and candidate gene association studies. However, these statistical methods do not provide an understanding of the functional effects of variation. Structure-based drug discovery and design is increasingly incorporating structural bioinformatics techniques to model and analyze protein targets, perform large scale virtual screening to identify hit to lead compounds, and simulate molecular interactions. These techniques are fast, cost-effective, and complement existing experimental techniques such as high throughput sequencing. In this paper, we discuss the contributions of structural bioinformatics to drug discovery, focusing particularly on the analysis of nonsynonymous single nucleotide polymorphisms. We conclude by suggesting a protocol for future analyses of the structural effects of nonsynonymous single nucleotide polymorphisms on proteins and protein complexes.
- Full Text:
- Date Issued: 2017
- Authors: Brown, David K , Tastan Bishop, Özlem
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125921 , vital:35832 , https://doi.10.1016/j.gheart.2017.01.009
- Description: With the completion of the human genome project at the beginning of the 21st century, the biological sciences entered an unprecedented age of data generation, and made its first steps toward an era of personalized medicine. This abundance of sequence data has led to the proliferation of numerous sequence-based techniques for associating variation with disease, such as genome-wide association studies and candidate gene association studies. However, these statistical methods do not provide an understanding of the functional effects of variation. Structure-based drug discovery and design is increasingly incorporating structural bioinformatics techniques to model and analyze protein targets, perform large scale virtual screening to identify hit to lead compounds, and simulate molecular interactions. These techniques are fast, cost-effective, and complement existing experimental techniques such as high throughput sequencing. In this paper, we discuss the contributions of structural bioinformatics to drug discovery, focusing particularly on the analysis of nonsynonymous single nucleotide polymorphisms. We conclude by suggesting a protocol for future analyses of the structural effects of nonsynonymous single nucleotide polymorphisms on proteins and protein complexes.
- Full Text:
- Date Issued: 2017
MD-TASK: a software suite for analyzing molecular dynamics trajectories
- Brown, David K, Penkler, David L, Amamuddy, Olivier S, Ross, Caroline J, Atilgan, Ali R, Atilgan, Canan, Tastan Bishop, Özlem
- Authors: Brown, David K , Penkler, David L , Amamuddy, Olivier S , Ross, Caroline J , Atilgan, Ali R , Atilgan, Canan , Tastan Bishop, Özlem
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125138 , vital:35735 , https://doi.10.1093/bioinformatics/btx349
- Description: Molecular dynamics (MD) determines the physical motions of atoms of a biological macromolecule in a cell-like environment and is an important method in structural bioinformatics. Traditionally, measurements such as root mean square deviation, root mean square fluctuation, radius of gyration, and various energy measures have been used to analyze MD simulations. Here, we present MD-TASK, a novel software suite that employs graph theory techniques, perturbation response scanning, and dynamic cross-correlation to provide unique ways for analyzing MD trajectories.
- Full Text:
- Date Issued: 2017
- Authors: Brown, David K , Penkler, David L , Amamuddy, Olivier S , Ross, Caroline J , Atilgan, Ali R , Atilgan, Canan , Tastan Bishop, Özlem
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125138 , vital:35735 , https://doi.10.1093/bioinformatics/btx349
- Description: Molecular dynamics (MD) determines the physical motions of atoms of a biological macromolecule in a cell-like environment and is an important method in structural bioinformatics. Traditionally, measurements such as root mean square deviation, root mean square fluctuation, radius of gyration, and various energy measures have been used to analyze MD simulations. Here, we present MD-TASK, a novel software suite that employs graph theory techniques, perturbation response scanning, and dynamic cross-correlation to provide unique ways for analyzing MD trajectories.
- Full Text:
- Date Issued: 2017
Structure-based analysis of single nucleotide variants in the renin-angiotensinogen complex:
- Brown, David K, Olivier, Sheik Amamuddy, Tastan Bishop, Özlem
- Authors: Brown, David K , Olivier, Sheik Amamuddy , Tastan Bishop, Özlem
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147994 , vital:38700 , https://doi.org/10.1016/j.gheart.2017.01.006
- Description: The renin-angiotensin system (RAS) plays an important role in regulating blood pressure and controlling sodium levels in the blood. Hyperactivity of this system has been linked to numerous conditions including hypertension, kidney disease, and congestive heart failure. Three classes of drugs have been developed to inhibit RAS. In this study, we provide a structure-based analysis of the effect of single nucleotide variants (SNVs) on the interaction between renin and angiotensinogen with the aim of revealing important residues and potentially damaging variants for further inhibitor design purposes.
- Full Text:
- Date Issued: 2017
- Authors: Brown, David K , Olivier, Sheik Amamuddy , Tastan Bishop, Özlem
- Date: 2017
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/147994 , vital:38700 , https://doi.org/10.1016/j.gheart.2017.01.006
- Description: The renin-angiotensin system (RAS) plays an important role in regulating blood pressure and controlling sodium levels in the blood. Hyperactivity of this system has been linked to numerous conditions including hypertension, kidney disease, and congestive heart failure. Three classes of drugs have been developed to inhibit RAS. In this study, we provide a structure-based analysis of the effect of single nucleotide variants (SNVs) on the interaction between renin and angiotensinogen with the aim of revealing important residues and potentially damaging variants for further inhibitor design purposes.
- Full Text:
- Date Issued: 2017