The urban housing crisis in Zimbambwe :a case of city of Harare
- Authors: Mhakakora, Tafadza Clemence
- Date: 2016
- Subjects: Housing -- Zimbabwe Housing development -- Zimbabwe Community development -- Zimbabwe
- Language: English
- Type: Thesis , Masters , Degree
- Identifier: http://hdl.handle.net/10353/5148 , vital:29091
- Description: The issue of human settlements has recently gained much momentum particularly in cities across the world due to rapid rates of urbanization. The housing crisis is manifesting mostly in the cities of the developing countries; the urban poor population is left with no option, they are continuously living in substandard and unsustainable housing conditions due to the desperate housing need. There is a growing trend of migration into urban centers in the developing countries as well as natural population increase in the cities. The inevitable development is the rapid growth of urbanization. The theories on urbanization suggest that the responsible government and local council authorities must be prepared to address socio-economic issues such as the provision of formal housing, infrastructure development and employment creation. The governments in developing countries are struggling to balance economic development and the provision of social services. As a result, the human settlement sector is suffering lack of prioritization when it comes to budget and resource allocation. The resultant factors are the overcrowding of the urban population, high housing backlogs and dilapidation of infrastructure visible mostly in the major cities of the developing countries.
- Full Text:
- Date Issued: 2016
- Authors: Mhakakora, Tafadza Clemence
- Date: 2016
- Subjects: Housing -- Zimbabwe Housing development -- Zimbabwe Community development -- Zimbabwe
- Language: English
- Type: Thesis , Masters , Degree
- Identifier: http://hdl.handle.net/10353/5148 , vital:29091
- Description: The issue of human settlements has recently gained much momentum particularly in cities across the world due to rapid rates of urbanization. The housing crisis is manifesting mostly in the cities of the developing countries; the urban poor population is left with no option, they are continuously living in substandard and unsustainable housing conditions due to the desperate housing need. There is a growing trend of migration into urban centers in the developing countries as well as natural population increase in the cities. The inevitable development is the rapid growth of urbanization. The theories on urbanization suggest that the responsible government and local council authorities must be prepared to address socio-economic issues such as the provision of formal housing, infrastructure development and employment creation. The governments in developing countries are struggling to balance economic development and the provision of social services. As a result, the human settlement sector is suffering lack of prioritization when it comes to budget and resource allocation. The resultant factors are the overcrowding of the urban population, high housing backlogs and dilapidation of infrastructure visible mostly in the major cities of the developing countries.
- Full Text:
- Date Issued: 2016
The usage of outdoor gyms in South Africa
- Authors: Greyling, Grant André
- Date: 2016
- Subjects: Outdoor recreation -- Economic aspects -- South Africa , Outdoor recreation industry -- South Africa , Parks -- Public use -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/7483 , vital:21787
- Description: The main research problem of this study was to investigate underlying factors, which influence people in the use of outdoor gyms in South Africa. The main research problem gave rise to five research sub-problems. The sub-problems were addressed by the following actions. A literature study was conducted to investigate theories explaining human behaviour. Particular attention was given to the Theory of Planned Behaviour, which provided the basis for the research design. A pilot study was conducted with ten members in the sample group to identify accessible behavioural, normative and control beliefs in order to construct a list of modal accessible beliefs, reflective of the most commonly held beliefs for the population. A standard questionnaire was developed, incorporating Ajzen’s (2002) conceptual and methodological considerations. The self-administered questionnaire was distributed to 974 members of the public from diverse backgrounds. The response rate was 21%, with 203 questionnaires being returned. The final sample size was 156, due to 47 questionnaires being incorrectly completed. The results from the study were largely consistent with the existing literature. A remarkable finding was the strong degree of multi-collinearity displayed between attitude and subjective norms. For this reason, t-stats were used (instead of regression coefficients) to compare the strength of the relationships between the independent and dependent variables. The model explained 34% of the variation in intention to use an outdoor gym. Subjective norms had the strongest significant effect on intentions. Outdoor gym installations are growing globally, as well as in South Africa and local governments regard outdoor gyms as an inexpensive solution to improving public health (Madren, 2013). This study can assist in the design of future physical activity intervention programs. The findings of the study are important as there are a number of public benefits of exercising at outdoor gyms (Madren, 2013: 1). The results of the study revealed the importance of subjective norms in the context of outdoor gyms. The findings further suggested that a special relationship existed between attitudes and subjective norms, which should be considered for effective health interventions. The role of perceived behaviour control is also significant and intervention campaigns should consider a number of proposals suggested in the study.
- Full Text:
- Date Issued: 2016
- Authors: Greyling, Grant André
- Date: 2016
- Subjects: Outdoor recreation -- Economic aspects -- South Africa , Outdoor recreation industry -- South Africa , Parks -- Public use -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/7483 , vital:21787
- Description: The main research problem of this study was to investigate underlying factors, which influence people in the use of outdoor gyms in South Africa. The main research problem gave rise to five research sub-problems. The sub-problems were addressed by the following actions. A literature study was conducted to investigate theories explaining human behaviour. Particular attention was given to the Theory of Planned Behaviour, which provided the basis for the research design. A pilot study was conducted with ten members in the sample group to identify accessible behavioural, normative and control beliefs in order to construct a list of modal accessible beliefs, reflective of the most commonly held beliefs for the population. A standard questionnaire was developed, incorporating Ajzen’s (2002) conceptual and methodological considerations. The self-administered questionnaire was distributed to 974 members of the public from diverse backgrounds. The response rate was 21%, with 203 questionnaires being returned. The final sample size was 156, due to 47 questionnaires being incorrectly completed. The results from the study were largely consistent with the existing literature. A remarkable finding was the strong degree of multi-collinearity displayed between attitude and subjective norms. For this reason, t-stats were used (instead of regression coefficients) to compare the strength of the relationships between the independent and dependent variables. The model explained 34% of the variation in intention to use an outdoor gym. Subjective norms had the strongest significant effect on intentions. Outdoor gym installations are growing globally, as well as in South Africa and local governments regard outdoor gyms as an inexpensive solution to improving public health (Madren, 2013). This study can assist in the design of future physical activity intervention programs. The findings of the study are important as there are a number of public benefits of exercising at outdoor gyms (Madren, 2013: 1). The results of the study revealed the importance of subjective norms in the context of outdoor gyms. The findings further suggested that a special relationship existed between attitudes and subjective norms, which should be considered for effective health interventions. The role of perceived behaviour control is also significant and intervention campaigns should consider a number of proposals suggested in the study.
- Full Text:
- Date Issued: 2016
The use of conceptual costume design to express the emotional trajectory of the play sounds of South End
- Authors: Chingosho, Vimbai
- Date: 2016
- Subjects: Fashion -- South Africa -- Port Elizabeth Costume design -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/11449 , vital:26926
- Description: The aim of this study is to illustrate how, in the design of costumes, adopting design elements used to produce conceptual fashion can create conceptual costumes that have the ability to express emotions. The play Sounds of South End (2013) contains such qualities; therefore it has been selected to illustrate how the mood and emotional trajectory of a play can be interpreted through symbolism. The play illustrates the life before and after the forced removals during the apartheid (1960s and 1970s), of a fictional family, the Dietrichs, who live in South End, a suburb in Port Elizabeth, South Africa. A focus on the nature of emotional changes experienced by the family has been used to determine the overall mood of the play, leading to a translation of the shifting mood through a collection of conceptual costumes. The final collection was exhibited as an installation artwork that is an interpretation of the altering moods and emotions that occur in the life of the Dietrich family as the play unfolds. The conceptual costumes have been constructed to imbue the narrative of the play with deep meaning by using symbolic elements, such as colour, texture and weight, to suggest the emotional trajectory within the play. The eight costumes portray the interrelated gradual decline and resultant deterioration of human relations experienced by the Dietrichs, from a contented state of harmonious living to a wounded state of despair.
- Full Text:
- Date Issued: 2016
- Authors: Chingosho, Vimbai
- Date: 2016
- Subjects: Fashion -- South Africa -- Port Elizabeth Costume design -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/11449 , vital:26926
- Description: The aim of this study is to illustrate how, in the design of costumes, adopting design elements used to produce conceptual fashion can create conceptual costumes that have the ability to express emotions. The play Sounds of South End (2013) contains such qualities; therefore it has been selected to illustrate how the mood and emotional trajectory of a play can be interpreted through symbolism. The play illustrates the life before and after the forced removals during the apartheid (1960s and 1970s), of a fictional family, the Dietrichs, who live in South End, a suburb in Port Elizabeth, South Africa. A focus on the nature of emotional changes experienced by the family has been used to determine the overall mood of the play, leading to a translation of the shifting mood through a collection of conceptual costumes. The final collection was exhibited as an installation artwork that is an interpretation of the altering moods and emotions that occur in the life of the Dietrich family as the play unfolds. The conceptual costumes have been constructed to imbue the narrative of the play with deep meaning by using symbolic elements, such as colour, texture and weight, to suggest the emotional trajectory within the play. The eight costumes portray the interrelated gradual decline and resultant deterioration of human relations experienced by the Dietrichs, from a contented state of harmonious living to a wounded state of despair.
- Full Text:
- Date Issued: 2016
The use of treated brewery effluent as a water and nutrient source in crop irrigation
- Authors: Taylor, Richard Peter
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5390 , http://hdl.handle.net/10962/d1021265
- Description: Brewery effluent (BE) needs to be treated before it can be released into the environment, reused or used in down-stream activities. Current technologies used to address this concern at the experimental wastewater treatment plant at Ibahyi Brewery (SAB Ltd) include anaerobic digestion (AD), primary facultative ponds (PFP), high rate algal ponds (HRAP) and constructed wetlands (CW). The aim of this work was to determine if BE treated in these systems might be suitable for crop irrigation. A test crop, cabbage (Brassica oleracea cv. Star 3301), grew best on post-AD and post-PFP BE compared to those irrigated with post-HRAP or post-CW effluent. However, the yield was 13% lower than cabbage plants irrigated with a commercial nutrient solution and fresh water. The relatively high conductivity (3019.05 ± 48.72 μs/cm2) of BE may be the main factor reducing the cabbage yields. Post-HRAP and post-CW BE were the least suitable for irrigated crop production due to the higher conductivity and lower nutrient content of these treated effluents. After three months, soils irrigated with post-AD and post-PFP BE had a significantly higher sodium content and sodium adsorption ratio (3919 ± 94.77 mg/kg & 8.18 ± 0.17) than soil irrigated with a commercial nutrient solution (920.58 ± 27.46 mg/kg & 2.20 ± 0.05; p<0.05). However, this was not accompanied by a deterioration in the soil’s hydro-physical properties, nor a change in the metabolic community structure of the soil (p>0.05). After prolonged irrigation with treated BE, sodium is likely to build up in the soil and this can be expected to be accompanied by a deterioration in the soil physical structure. However, crops species such as millet (Echinochloa esculenta), lucerne (Medicago sativa) and saltbush (Atriplex nummularia) reduced the build-up of sodium in the soil. The results suggest that sodium was mainly removed from the soil through plant-assisted leaching. Of the crops grown, lucerne showed the most promise because it improved the soil physical properties, is able to grow well in alkaline environments, is a popular fodder crop and can be harvested multiple times from a single stand. Brewery effluent is more suitable for soil production systems than hydroponic production systems because the soil was able to act as a buffer against the high pH of post-AD BE, whereas in a hydroponics systems the high pH reduced the availability of key minerals to plants. In conclusion brewery effluent contains sufficient plants nutrients to support the growth of cabbages, saltbush, lucerne and millet. However the sodium content of BE is a concern as it accumulates in the soil, and in the long-term it may lead to soil degradation. It is suggested that the brewery change the pH neutralising treatment of BE from sodium hydroxide to potassium hydroxide, or dolomitic lime (calcium and magnesium carbonate) because this would reduce the introduction of sodium into the system, and would increase the suitability of BE for crop production, given potassium and calcium are plant nutrients. The benefits of developing this nutrient and water resource could contribute to cost-reductions at the brewery, more efficient water, nutrient and energy management, create job opportunities with the potential of improving food security in the local community.
- Full Text:
- Date Issued: 2016
- Authors: Taylor, Richard Peter
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5390 , http://hdl.handle.net/10962/d1021265
- Description: Brewery effluent (BE) needs to be treated before it can be released into the environment, reused or used in down-stream activities. Current technologies used to address this concern at the experimental wastewater treatment plant at Ibahyi Brewery (SAB Ltd) include anaerobic digestion (AD), primary facultative ponds (PFP), high rate algal ponds (HRAP) and constructed wetlands (CW). The aim of this work was to determine if BE treated in these systems might be suitable for crop irrigation. A test crop, cabbage (Brassica oleracea cv. Star 3301), grew best on post-AD and post-PFP BE compared to those irrigated with post-HRAP or post-CW effluent. However, the yield was 13% lower than cabbage plants irrigated with a commercial nutrient solution and fresh water. The relatively high conductivity (3019.05 ± 48.72 μs/cm2) of BE may be the main factor reducing the cabbage yields. Post-HRAP and post-CW BE were the least suitable for irrigated crop production due to the higher conductivity and lower nutrient content of these treated effluents. After three months, soils irrigated with post-AD and post-PFP BE had a significantly higher sodium content and sodium adsorption ratio (3919 ± 94.77 mg/kg & 8.18 ± 0.17) than soil irrigated with a commercial nutrient solution (920.58 ± 27.46 mg/kg & 2.20 ± 0.05; p<0.05). However, this was not accompanied by a deterioration in the soil’s hydro-physical properties, nor a change in the metabolic community structure of the soil (p>0.05). After prolonged irrigation with treated BE, sodium is likely to build up in the soil and this can be expected to be accompanied by a deterioration in the soil physical structure. However, crops species such as millet (Echinochloa esculenta), lucerne (Medicago sativa) and saltbush (Atriplex nummularia) reduced the build-up of sodium in the soil. The results suggest that sodium was mainly removed from the soil through plant-assisted leaching. Of the crops grown, lucerne showed the most promise because it improved the soil physical properties, is able to grow well in alkaline environments, is a popular fodder crop and can be harvested multiple times from a single stand. Brewery effluent is more suitable for soil production systems than hydroponic production systems because the soil was able to act as a buffer against the high pH of post-AD BE, whereas in a hydroponics systems the high pH reduced the availability of key minerals to plants. In conclusion brewery effluent contains sufficient plants nutrients to support the growth of cabbages, saltbush, lucerne and millet. However the sodium content of BE is a concern as it accumulates in the soil, and in the long-term it may lead to soil degradation. It is suggested that the brewery change the pH neutralising treatment of BE from sodium hydroxide to potassium hydroxide, or dolomitic lime (calcium and magnesium carbonate) because this would reduce the introduction of sodium into the system, and would increase the suitability of BE for crop production, given potassium and calcium are plant nutrients. The benefits of developing this nutrient and water resource could contribute to cost-reductions at the brewery, more efficient water, nutrient and energy management, create job opportunities with the potential of improving food security in the local community.
- Full Text:
- Date Issued: 2016
The voice of the child in parental divorce: a narrative inquiry
- Authors: Brand, Carrie
- Date: 2016
- Subjects: Conversation analysis , Children of divorced parents , Divorced parents
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/8923 , vital:26443
- Description: Parental divorce is considered one of the most stressful events in the lives of children. The adult perspective has dominated the discourse on divorce, and only recently has research started to consider the viewpoint of children. Research indicates that the nature of the divorce process as experienced by the child is the most important factor in post-divorce adjustment. It also remains a relatively unexplored area, with research on the manner in which children experience the divorce process being limited. The current study aimed to conduct a narrative inquiry into the experiences and perceptions of parental divorce, of a purposive sample of 9 to 10 year old children. The primary aim of the study was to highlight and honour the voice of the child in a parental divorce process. The current research was qualitative in nature and adopted a narrative paradigm. Five children were interviewed qualitatively using an unstructured interview. Data were analysed using thematic analysis. Seven themes were identified. The first theme explored children’s endeavours to describe and explain parental divorce. An additional six themes were developed around the types of stories children told of the divorce process. Themes included, What is a Divorcement, Stories of Loss, Stories of Gain, Stories of Change, Stories of Stability, Healing Stories, and Complicating Stories. This study endeavoured to provide divorced parents and those working with children a greater understanding of the way in which children perceive parental divorce, and insight into the factors that facilitate children’s positive adjustment to parental divorce.
- Full Text:
- Date Issued: 2016
- Authors: Brand, Carrie
- Date: 2016
- Subjects: Conversation analysis , Children of divorced parents , Divorced parents
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/8923 , vital:26443
- Description: Parental divorce is considered one of the most stressful events in the lives of children. The adult perspective has dominated the discourse on divorce, and only recently has research started to consider the viewpoint of children. Research indicates that the nature of the divorce process as experienced by the child is the most important factor in post-divorce adjustment. It also remains a relatively unexplored area, with research on the manner in which children experience the divorce process being limited. The current study aimed to conduct a narrative inquiry into the experiences and perceptions of parental divorce, of a purposive sample of 9 to 10 year old children. The primary aim of the study was to highlight and honour the voice of the child in a parental divorce process. The current research was qualitative in nature and adopted a narrative paradigm. Five children were interviewed qualitatively using an unstructured interview. Data were analysed using thematic analysis. Seven themes were identified. The first theme explored children’s endeavours to describe and explain parental divorce. An additional six themes were developed around the types of stories children told of the divorce process. Themes included, What is a Divorcement, Stories of Loss, Stories of Gain, Stories of Change, Stories of Stability, Healing Stories, and Complicating Stories. This study endeavoured to provide divorced parents and those working with children a greater understanding of the way in which children perceive parental divorce, and insight into the factors that facilitate children’s positive adjustment to parental divorce.
- Full Text:
- Date Issued: 2016
The woman who accused Zwelinzima Vavi of rape :a media analysis of eight South African newspapers
- Authors: Timse, Tabelo Veronica
- Date: 2016
- Subjects: Rape -- South Africa -- Case studies Sexual abuse victims -- South Africa , Mass media criticism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/45311 , vital:38569
- Description: The focal point of this study is to examine the print and online media representations of Jacqueline Phooko,a woman who accused former Cosatu General Secretary Zwelinzima Vavi of rape. Data for this study was obtained from eight South African newspapers and their websites. The study investigates whether the articles under review, including commentary and discussion online, focused on the incident itself or on the political landscape of South Africa. A content analysis was used to examine the data revelaling that Phooko was underrepresented and that most articles focused on Vavi’s political career. The research will use a feminist perspective to show that Phooko was under-represented in the media, in comparison to Vavi and his supporters who gained greater coverage, specifically in a political context. The significance of the findings is that although there are some strides achieved to have more women voices in the media however women are still under-represented.
- Full Text:
- Date Issued: 2016
- Authors: Timse, Tabelo Veronica
- Date: 2016
- Subjects: Rape -- South Africa -- Case studies Sexual abuse victims -- South Africa , Mass media criticism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/45311 , vital:38569
- Description: The focal point of this study is to examine the print and online media representations of Jacqueline Phooko,a woman who accused former Cosatu General Secretary Zwelinzima Vavi of rape. Data for this study was obtained from eight South African newspapers and their websites. The study investigates whether the articles under review, including commentary and discussion online, focused on the incident itself or on the political landscape of South Africa. A content analysis was used to examine the data revelaling that Phooko was underrepresented and that most articles focused on Vavi’s political career. The research will use a feminist perspective to show that Phooko was under-represented in the media, in comparison to Vavi and his supporters who gained greater coverage, specifically in a political context. The significance of the findings is that although there are some strides achieved to have more women voices in the media however women are still under-represented.
- Full Text:
- Date Issued: 2016
The work of the international criminal court in Africa and challenges for the future of international criminal justice
- Authors: Mupanga, Godfrey
- Date: 2016
- Subjects: Immunities of foreign states Jurisdiction (International law) Government liability (International law) International relations
- Language: English
- Type: Thesis , Doctoral , Law
- Identifier: http://hdl.handle.net/10353/2645 , vital:27977
- Description: Within the first decade of the ICC‟s existence, its case docket was composed of cases originating from Africa only. Relations between the African governments represented by the AU quickly deteriorated. The AU accuses the ICC of bias and unfair targeting of Africa. After the indictment of heads of states that include Omar Al Bashir of Sudan, Uhuru Kenyatta of Kenya and the late Muammar Gaddafi of Libya, the AU passed several resolutions where it reiterated its commitment to the rule of law and to combating impunity. The AU, however, instructed member states to cease all cooperation with the ICC. African states that are ICC members are now faced with conflicting obligations as a result of the AU resolutions. Moreover, the AU resolutions raise the spectre of a legitimacy crisis for the AU and a conflict between articles 27(2) and 98(1) of the Rome Statute. Based mostly on desk research coupled with my experience working on human rights and access to justice programmes in Sudan, South Sudan, Somaliland, Ethiopia, Kenya, Uganda and Zimbabwe, this thesis considers the possibility that the ICC is suffering from a legitimacy crisis as a result of the fall out and the issues of unfair selectivity that are raised by the AU. Employing the Third World Approaches to International Law as an analytical framework, the study attempts to reconcile the apparent contradictions in the new outlook and rhetoric of the AU pursuant to its Constitutive Act and the instruction to member states to withdraw cooperation with the ICC. The thesis also proposes practical ways to resolve the conflicting obligations caused by the AU resolutions and by operation of customary international law immunity of high ranking state officials referred to the ICC by way of a Security Council resolution. The current situation gives the ICC the appearance of a weak institution that is only good for low hanging fruit, which has a negative effect on the legitimacy of the ICC.
- Full Text:
- Date Issued: 2016
- Authors: Mupanga, Godfrey
- Date: 2016
- Subjects: Immunities of foreign states Jurisdiction (International law) Government liability (International law) International relations
- Language: English
- Type: Thesis , Doctoral , Law
- Identifier: http://hdl.handle.net/10353/2645 , vital:27977
- Description: Within the first decade of the ICC‟s existence, its case docket was composed of cases originating from Africa only. Relations between the African governments represented by the AU quickly deteriorated. The AU accuses the ICC of bias and unfair targeting of Africa. After the indictment of heads of states that include Omar Al Bashir of Sudan, Uhuru Kenyatta of Kenya and the late Muammar Gaddafi of Libya, the AU passed several resolutions where it reiterated its commitment to the rule of law and to combating impunity. The AU, however, instructed member states to cease all cooperation with the ICC. African states that are ICC members are now faced with conflicting obligations as a result of the AU resolutions. Moreover, the AU resolutions raise the spectre of a legitimacy crisis for the AU and a conflict between articles 27(2) and 98(1) of the Rome Statute. Based mostly on desk research coupled with my experience working on human rights and access to justice programmes in Sudan, South Sudan, Somaliland, Ethiopia, Kenya, Uganda and Zimbabwe, this thesis considers the possibility that the ICC is suffering from a legitimacy crisis as a result of the fall out and the issues of unfair selectivity that are raised by the AU. Employing the Third World Approaches to International Law as an analytical framework, the study attempts to reconcile the apparent contradictions in the new outlook and rhetoric of the AU pursuant to its Constitutive Act and the instruction to member states to withdraw cooperation with the ICC. The thesis also proposes practical ways to resolve the conflicting obligations caused by the AU resolutions and by operation of customary international law immunity of high ranking state officials referred to the ICC by way of a Security Council resolution. The current situation gives the ICC the appearance of a weak institution that is only good for low hanging fruit, which has a negative effect on the legitimacy of the ICC.
- Full Text:
- Date Issued: 2016
Theatre in the expanded field: seven approaches to performance
- Authors: Gehring, Heike
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/468639 , vital:77107 , https://doi.org/10.1080/10137548.2016.1218201
- Description: Alan Read's book, Theatre in the Expanded Field, is in one sense a response to Richard Southern's The Seven Ages of the Theatre (1962), as the subtitle suggests. However, the main title's echoing of Rosalind Krauss's essay, ‘Sculpture in the Expanded Field’ (p. xxxiii), signals Read's intentional incorporation of other artistic genres in his work. A further influence is Richard Schechner's concepts of performance, developed around the early 1960s, when Southern was writing The Seven Ages. Both Southern's and Schechner's theories about theatre and performance played a significant role in shaping and understanding the relationship between contemporary theatre and performance (p. xi) and set in motion a new trajectory in theatre and performance studies. It is from this trajectory that Read's book emerges.
- Full Text:
- Date Issued: 2016
- Authors: Gehring, Heike
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/468639 , vital:77107 , https://doi.org/10.1080/10137548.2016.1218201
- Description: Alan Read's book, Theatre in the Expanded Field, is in one sense a response to Richard Southern's The Seven Ages of the Theatre (1962), as the subtitle suggests. However, the main title's echoing of Rosalind Krauss's essay, ‘Sculpture in the Expanded Field’ (p. xxxiii), signals Read's intentional incorporation of other artistic genres in his work. A further influence is Richard Schechner's concepts of performance, developed around the early 1960s, when Southern was writing The Seven Ages. Both Southern's and Schechner's theories about theatre and performance played a significant role in shaping and understanding the relationship between contemporary theatre and performance (p. xi) and set in motion a new trajectory in theatre and performance studies. It is from this trajectory that Read's book emerges.
- Full Text:
- Date Issued: 2016
Thermoluminescence of annealed synthetic quartz
- Atang, Elizabeth Fende Midiki
- Authors: Atang, Elizabeth Fende Midiki
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/420 , vital:19957
- Description: The kinetic and dosimetric features of the main thermoluminescent peak of synthetic quartz have been investigated in quartz ordinarily annealed at 500_C as well as quartz annealed at 500_C for 10 minutes. The main peak is found at 78 _C for the samples annealed at 500_C for 10 minutes irradiated to 10 Gy and heated at 1.0 _C/s. For the samples ordinarily annealed at 500_C the main peak is found at 106 _C after the sample has been irradiated to 30 Gy and heated at 5.0 _C/s. In these samples, the intensity of the main peak is enhanced with repetitive measurement whereas its maximum temperature is unaffected. The peak position of the main peak in the sample is independent of the irradiation dose and this, together with its fading characteristics, are consistent with first-order kinetics. For doses between 5 and 25 Gy, the dose response of the main peak of the annealed sample is superlinear. The half-life of the main TL peak of the annealed sample is about 1 h. The activation energy E of the main peak is around 0.90 eV. For a heating rate of 0.4 _C/s, its order of kinetics b derived from the whole curve method of analysis is 1.0. Following irradiation, preheating and illumination with 470 nm blue light, the main peak in the annealed sample is regenerated during heating. The resulting phototransferred peak occurs at the same temperature as the original peak and has similar kinetic and dosimetric features, with a half-life of about 1 h. For a preheat temperature of 200 _C, the intensity of the phototransferred peak in the sample increases with illumination time up to a maximum and decreases thereafter. At longer illumination times, no further decrease in the intensity of the phototransferred peak is observed. The traps associated with the 325 _C peak are the main source of the electrons responsible for the regenerated peak.
- Full Text:
- Date Issued: 2016
- Authors: Atang, Elizabeth Fende Midiki
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/420 , vital:19957
- Description: The kinetic and dosimetric features of the main thermoluminescent peak of synthetic quartz have been investigated in quartz ordinarily annealed at 500_C as well as quartz annealed at 500_C for 10 minutes. The main peak is found at 78 _C for the samples annealed at 500_C for 10 minutes irradiated to 10 Gy and heated at 1.0 _C/s. For the samples ordinarily annealed at 500_C the main peak is found at 106 _C after the sample has been irradiated to 30 Gy and heated at 5.0 _C/s. In these samples, the intensity of the main peak is enhanced with repetitive measurement whereas its maximum temperature is unaffected. The peak position of the main peak in the sample is independent of the irradiation dose and this, together with its fading characteristics, are consistent with first-order kinetics. For doses between 5 and 25 Gy, the dose response of the main peak of the annealed sample is superlinear. The half-life of the main TL peak of the annealed sample is about 1 h. The activation energy E of the main peak is around 0.90 eV. For a heating rate of 0.4 _C/s, its order of kinetics b derived from the whole curve method of analysis is 1.0. Following irradiation, preheating and illumination with 470 nm blue light, the main peak in the annealed sample is regenerated during heating. The resulting phototransferred peak occurs at the same temperature as the original peak and has similar kinetic and dosimetric features, with a half-life of about 1 h. For a preheat temperature of 200 _C, the intensity of the phototransferred peak in the sample increases with illumination time up to a maximum and decreases thereafter. At longer illumination times, no further decrease in the intensity of the phototransferred peak is observed. The traps associated with the 325 _C peak are the main source of the electrons responsible for the regenerated peak.
- Full Text:
- Date Issued: 2016
Thermoluminescence of kunzite: a study of kinetic processes and dosimetry characteristics
- Ogundare, F O, Alatishe, M A, Chithambo, Makaiko L, Costin, G
- Authors: Ogundare, F O , Alatishe, M A , Chithambo, Makaiko L , Costin, G
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124701 , vital:35650 , https://doi.org/10.1016/j.nimb.2016.02.059
- Description: Since the use of natural minerals for dating and dose reconstruction using luminescence techniques is well-established and always of interest, we present thermoluminescence characteristics of kunzite, a gem variety of spodumene. The chemical composition of the sample was determined using an Electron Probe MicroAnalyzer.
- Full Text: false
- Date Issued: 2016
- Authors: Ogundare, F O , Alatishe, M A , Chithambo, Makaiko L , Costin, G
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124701 , vital:35650 , https://doi.org/10.1016/j.nimb.2016.02.059
- Description: Since the use of natural minerals for dating and dose reconstruction using luminescence techniques is well-established and always of interest, we present thermoluminescence characteristics of kunzite, a gem variety of spodumene. The chemical composition of the sample was determined using an Electron Probe MicroAnalyzer.
- Full Text: false
- Date Issued: 2016
The design of a centre for water sports in Newlands, Cape Town
- Authors: MacKenzie, Paul
- Date: 2016
- Subjects: Sports facilities -- South Africa -- Cape Town -- Designs and plans Recreation centers -- South Africa -- Cape Town -- Designs and plans
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39218 , vital:35064
- Description: This treatise focuses on the design of a Water Sports Centre in the sporting precinct of Newlands in Cape Town. The building is concerned with the redevelopment of an existing facility that is underutilised and outdated, compared to the 21st-century sporting arena. The purpose of this treatise is to investigate the processes and issues involved in the design of a Water Sports Centre that is located in a public park environment, and to better understand the contextual, spatial, physical, and theoretical influences on the nature of such a project’s architectural resolution. The process begins with an analysis of the two separate typologies, namely, water sports centres and sports stadiums, to better understand the spatial and physical nature of the combined building types. Various precedents are investigated of which the materiality and physical nature of the buildings are uncovered to identify an appropriate architectural language. Moreover, the spatial nature of these buildings are divided into categories of which the inter-relationships are analysed. The nature of the site is then investigated to identify and develop constraints and design informants. The site-defining elements are analysed individually, and a corresponding set of issues is established through the study of particular precedents. With an understanding of the physical and spatial attributes of the typology, combined with an appropriate response to the site, the design resolution for the Water Sports Centre in the Newlands sporting precinct is presented.
- Full Text:
- Date Issued: 2016
- Authors: MacKenzie, Paul
- Date: 2016
- Subjects: Sports facilities -- South Africa -- Cape Town -- Designs and plans Recreation centers -- South Africa -- Cape Town -- Designs and plans
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39218 , vital:35064
- Description: This treatise focuses on the design of a Water Sports Centre in the sporting precinct of Newlands in Cape Town. The building is concerned with the redevelopment of an existing facility that is underutilised and outdated, compared to the 21st-century sporting arena. The purpose of this treatise is to investigate the processes and issues involved in the design of a Water Sports Centre that is located in a public park environment, and to better understand the contextual, spatial, physical, and theoretical influences on the nature of such a project’s architectural resolution. The process begins with an analysis of the two separate typologies, namely, water sports centres and sports stadiums, to better understand the spatial and physical nature of the combined building types. Various precedents are investigated of which the materiality and physical nature of the buildings are uncovered to identify an appropriate architectural language. Moreover, the spatial nature of these buildings are divided into categories of which the inter-relationships are analysed. The nature of the site is then investigated to identify and develop constraints and design informants. The site-defining elements are analysed individually, and a corresponding set of issues is established through the study of particular precedents. With an understanding of the physical and spatial attributes of the typology, combined with an appropriate response to the site, the design resolution for the Water Sports Centre in the Newlands sporting precinct is presented.
- Full Text:
- Date Issued: 2016
The design of a cultural resource centre in the lower Khuiseb river valley, Namibia: a collective project
- Authors: Niedermeier, Inka
- Date: 2016
- Subjects: Community centers -- Namibia -- Designs and plans Community centers -- Namibia
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/38830 , vital:35004
- Description: The treatise focuses on how to design built space that is ‘place-specific’ and captures the ‘spirit’ of the Namib Desert landscape through the experience of architecture. The project specifically focuses on tourism developments in natural and cultural environments. An investigation and analysis are done of the nature of the physical, spatial and cultural context of the ephemeral Khuiseb river of Namibia. By inductive and deductive reasoning, an argument is presented regarding the appropriate architectural approach of a luxury eco-lodge in a proposed eco-tourism precinct, that captures the Zeitgeist of the context while responding to the socio-economic conditions to encourage an autonomous community in a selfsufficient and sustainable way.
- Full Text:
- Date Issued: 2016
- Authors: Niedermeier, Inka
- Date: 2016
- Subjects: Community centers -- Namibia -- Designs and plans Community centers -- Namibia
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/38830 , vital:35004
- Description: The treatise focuses on how to design built space that is ‘place-specific’ and captures the ‘spirit’ of the Namib Desert landscape through the experience of architecture. The project specifically focuses on tourism developments in natural and cultural environments. An investigation and analysis are done of the nature of the physical, spatial and cultural context of the ephemeral Khuiseb river of Namibia. By inductive and deductive reasoning, an argument is presented regarding the appropriate architectural approach of a luxury eco-lodge in a proposed eco-tourism precinct, that captures the Zeitgeist of the context while responding to the socio-economic conditions to encourage an autonomous community in a selfsufficient and sustainable way.
- Full Text:
- Date Issued: 2016
The design of a digital resource centre in Motherwell, Port Elizabeth
- Authors: Bursey, Rowan
- Date: 2016
- Subjects: Community centers -- South Africa -- Port Elizabeth -- Designs and plans Community centers -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/38874 , vital:35009
- Description: This treatise is centered on the design of a digital resource centre in the township of Motherwell, Port Elizabeth. The building is concerned with providing a civic space which promotes access to and effective use of digital information and communication technologies. The treatise explores the issues and methods involved in the design of a public digital resource centre. The research starts with an investigation into the nature of public space and civic facilities within a South African township context before exploring the development of the library typology and its evolution in the digital age, while exploring the issues and processes involved in the design of a civic building in a township environment. The architectural design is seen as an appropriate response to the identified architectural issues. Relevant precedents are chosen based on the nature of these issues and the context in which they are situated. The buildings are analyzed in terms of these key issues and will thereby provide an understanding of the architectural identity of the civic building archetype. An understanding of the architectural typology and an analysis of relevant precedents leads to the identification of a set of site selection criteria which can be used to select an appropriate site within the Motherwell precinct. The nature of Motherwell and the identified issues related to the selected site are then investigated in order to develop a set of informants and constraints. Specific elements which are unique to the selected site are then investigated individually while using relevant precedents to establish an appropriate response to the issues involved. An appropriate architectural response is then developed through an understanding of the physical and spatial qualities of the building typology while also responding to the specific issues related to the site.
- Full Text:
- Date Issued: 2016
- Authors: Bursey, Rowan
- Date: 2016
- Subjects: Community centers -- South Africa -- Port Elizabeth -- Designs and plans Community centers -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/38874 , vital:35009
- Description: This treatise is centered on the design of a digital resource centre in the township of Motherwell, Port Elizabeth. The building is concerned with providing a civic space which promotes access to and effective use of digital information and communication technologies. The treatise explores the issues and methods involved in the design of a public digital resource centre. The research starts with an investigation into the nature of public space and civic facilities within a South African township context before exploring the development of the library typology and its evolution in the digital age, while exploring the issues and processes involved in the design of a civic building in a township environment. The architectural design is seen as an appropriate response to the identified architectural issues. Relevant precedents are chosen based on the nature of these issues and the context in which they are situated. The buildings are analyzed in terms of these key issues and will thereby provide an understanding of the architectural identity of the civic building archetype. An understanding of the architectural typology and an analysis of relevant precedents leads to the identification of a set of site selection criteria which can be used to select an appropriate site within the Motherwell precinct. The nature of Motherwell and the identified issues related to the selected site are then investigated in order to develop a set of informants and constraints. Specific elements which are unique to the selected site are then investigated individually while using relevant precedents to establish an appropriate response to the issues involved. An appropriate architectural response is then developed through an understanding of the physical and spatial qualities of the building typology while also responding to the specific issues related to the site.
- Full Text:
- Date Issued: 2016
The design of a new medical faculty building at Livingston Hospital in Port Elizabeth
- Authors: Erwee, Chantal
- Date: 2016
- Subjects: College buildings -- South Africa -- Port Elizabeth -- Designs and plans College buildings -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39076 , vital:35036
- Description: On 24 July 2016, the Nelson Mandela Metropolitan University (NMMU) announced formal state approval to establish a new medical school. This treatise proposes the design of the medical faculty for NMMU. This medical faculty will challenge the typical school typology by the application of Biophilic design principles. This is achieved by critically engaging with the nature of a medical faculty and campus and by examining the context in which the proposal takes place. By means of a typological investigation, Livingstone Hospital in Port Elizabeth was deemed the most suitable location for the medical faculty. Through the integration of the programmatic requirements, technical strategy and the model of Biophilia, which stimulates the physiological needs and neurological functions of the users, the treatise successfully established a new precedent for medical school design in South Africa. The investigation of Livingstone Hospital highlighted the need for rehabilitation of the adjacent green structures and the campus as a whole. The design provides the “stent” which will fuse these entities, healing not only the physical campus but the users of the campus, the surrounding landscape and ultimately the adjacent precinct. The introduction of a medical faculty to the Health Sciences Department of NMMU in Port Elizabeth will breathe new life into the medical industry, unclogging the arteries which restrict the provision of healthcare for South African citizens.
- Full Text:
- Date Issued: 2016
- Authors: Erwee, Chantal
- Date: 2016
- Subjects: College buildings -- South Africa -- Port Elizabeth -- Designs and plans College buildings -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39076 , vital:35036
- Description: On 24 July 2016, the Nelson Mandela Metropolitan University (NMMU) announced formal state approval to establish a new medical school. This treatise proposes the design of the medical faculty for NMMU. This medical faculty will challenge the typical school typology by the application of Biophilic design principles. This is achieved by critically engaging with the nature of a medical faculty and campus and by examining the context in which the proposal takes place. By means of a typological investigation, Livingstone Hospital in Port Elizabeth was deemed the most suitable location for the medical faculty. Through the integration of the programmatic requirements, technical strategy and the model of Biophilia, which stimulates the physiological needs and neurological functions of the users, the treatise successfully established a new precedent for medical school design in South Africa. The investigation of Livingstone Hospital highlighted the need for rehabilitation of the adjacent green structures and the campus as a whole. The design provides the “stent” which will fuse these entities, healing not only the physical campus but the users of the campus, the surrounding landscape and ultimately the adjacent precinct. The introduction of a medical faculty to the Health Sciences Department of NMMU in Port Elizabeth will breathe new life into the medical industry, unclogging the arteries which restrict the provision of healthcare for South African citizens.
- Full Text:
- Date Issued: 2016
The design of a primary healthcare centre for women and children in KwaZakhele, Port Elizabeth
- Authors: Du Preez, Ashleigh
- Date: 2016
- Subjects: Health facilities -- Designs and plans Health facilities -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/38863 , vital:35008
- Description: This treatise focuses on the design of a primary health care centre for women and children in Kwazakhele, Port Elizabeth. The primary health care facility will provide the space ‘in-between’ home and hospital and will promote improved maternal care by concentrating on antenatal and postnatal services, delivered in a safe environment. The Centre will encompass an understanding of cultural, social and economic informants of health and enable an empowerment of community through a holistic approach to health care design. The Centre aims at dealing with both physical and mental issues that are connected to pregnancy, as well as other aspects of women’s health needs. A maternity ward, as well as a psychological component that deals with antenatal depression and rape counselling, will be incorporated into the design. Understanding traditions in township architecture and the design of healthcare centres internationally and in South Africa provide the basis of a cultural engagement stimulating the design of a health centre providing opportunities for social interaction.By enhancing the urban space, a better quality of living will be provided in the community. Through this intervention, the promotion of wellness will be stimulated and strengthened.
- Full Text:
- Date Issued: 2016
- Authors: Du Preez, Ashleigh
- Date: 2016
- Subjects: Health facilities -- Designs and plans Health facilities -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/38863 , vital:35008
- Description: This treatise focuses on the design of a primary health care centre for women and children in Kwazakhele, Port Elizabeth. The primary health care facility will provide the space ‘in-between’ home and hospital and will promote improved maternal care by concentrating on antenatal and postnatal services, delivered in a safe environment. The Centre will encompass an understanding of cultural, social and economic informants of health and enable an empowerment of community through a holistic approach to health care design. The Centre aims at dealing with both physical and mental issues that are connected to pregnancy, as well as other aspects of women’s health needs. A maternity ward, as well as a psychological component that deals with antenatal depression and rape counselling, will be incorporated into the design. Understanding traditions in township architecture and the design of healthcare centres internationally and in South Africa provide the basis of a cultural engagement stimulating the design of a health centre providing opportunities for social interaction.By enhancing the urban space, a better quality of living will be provided in the community. Through this intervention, the promotion of wellness will be stimulated and strengthened.
- Full Text:
- Date Issued: 2016
The design of botanical conservatory facilities at cathedral peak in the Drakensberg, KwaZulu Natal: a cathedral of conservation
- Authors: Hirst, Charné
- Date: 2016
- Subjects: Conservatories -- South Africa -- KwaZulu-Natal -- Design and plans Architecture -- Environmental aspects , Architecture, Modern -- 20th century
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39098 , vital:35042
- Description: This treatise investigates how eco-tourism can be employed to support the development of natural identity and place-making of a sacred environment through architectural intervention in the midst of an industrialised society. The principle argument of this treatise is that through the symbiosis of nature and the built environment, architecture can provide a counter-narrative to the disconnection between humans and nature. With ecotourism being a contemporary attempt to re-connect humans with our natural routes, to create awareness, a spiritual awakening and a global warming crisis intervention, this treatise will be the architectural product of conservation. The unification of ecology and architecture is critical to a contemporary definition of the natural environment. This treatise proposes the design of botanical conservatory facilities at Cathedral Peak, a tourist and research precinct in the renowned natural and cultural National Heritage Site of the Drakensberg Mountains. It presents an architecture which becomes an extension of the landscape and articulates its natural ecological systems through architectural design, while reinforcing the junction of the natural and built environment. It places the focus on integration between inside/outside spaces, in which the harmonious and symbiotic relationship can be experienced. Although it presents a contemporary architecture, it integrates various vernacular material and tectonic references, becoming a symbol of the nature of the place. The proposal is further described as a ‘cathedral of conservation’ designed as a modulated system for the simulation of particular climatic environments, with attributes drawn from the Gothic cathedral archetype in its attention to verticality and detail to materiality, and from a phenomenological perspective of place and identity as a building asserting the distinctive nature of the place. This cathedral of conservation is an architectural response to the sacredness and spirituality of the mountains, inducing a dialogue between the conservatory and the mighty Cathedral Peak which is one of the most famous natural attributes of the Drakensberg and thus the site’s most valuable vista.
- Full Text:
- Date Issued: 2016
- Authors: Hirst, Charné
- Date: 2016
- Subjects: Conservatories -- South Africa -- KwaZulu-Natal -- Design and plans Architecture -- Environmental aspects , Architecture, Modern -- 20th century
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39098 , vital:35042
- Description: This treatise investigates how eco-tourism can be employed to support the development of natural identity and place-making of a sacred environment through architectural intervention in the midst of an industrialised society. The principle argument of this treatise is that through the symbiosis of nature and the built environment, architecture can provide a counter-narrative to the disconnection between humans and nature. With ecotourism being a contemporary attempt to re-connect humans with our natural routes, to create awareness, a spiritual awakening and a global warming crisis intervention, this treatise will be the architectural product of conservation. The unification of ecology and architecture is critical to a contemporary definition of the natural environment. This treatise proposes the design of botanical conservatory facilities at Cathedral Peak, a tourist and research precinct in the renowned natural and cultural National Heritage Site of the Drakensberg Mountains. It presents an architecture which becomes an extension of the landscape and articulates its natural ecological systems through architectural design, while reinforcing the junction of the natural and built environment. It places the focus on integration between inside/outside spaces, in which the harmonious and symbiotic relationship can be experienced. Although it presents a contemporary architecture, it integrates various vernacular material and tectonic references, becoming a symbol of the nature of the place. The proposal is further described as a ‘cathedral of conservation’ designed as a modulated system for the simulation of particular climatic environments, with attributes drawn from the Gothic cathedral archetype in its attention to verticality and detail to materiality, and from a phenomenological perspective of place and identity as a building asserting the distinctive nature of the place. This cathedral of conservation is an architectural response to the sacredness and spirituality of the mountains, inducing a dialogue between the conservatory and the mighty Cathedral Peak which is one of the most famous natural attributes of the Drakensberg and thus the site’s most valuable vista.
- Full Text:
- Date Issued: 2016
Tide-induced variations in the fatty acid composition of estuarine particulate organic matter
- Antonio, Emily S, Richoux, Nicole B
- Authors: Antonio, Emily S , Richoux, Nicole B
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/456336 , vital:75504 , xlink:href="https://doi.org/10.1007/s12237-015-0049-x"
- Description: The particulate organic matter (POM) in hydrodynamically variable habitats such as the lower reaches of estuaries can change in its content and quality on very short time scales (example, hourly), and these changes can potentially influence higher-level consumers in river-estuary-marine systems. Estuarine water samples were collected hourly for 12 h downstream in a small river to evaluate the fatty acid composition of POM over a tidal cycle. Fatty acid constituents of POM collected during the flood tide were dominated by the saturated, higher plant and bacterial fatty acids, whereas unsaturated, polyunsaturated, essential, and diatom-associated fatty acids dominated the POM collected during the ebb tide. Elevated algal biomass (as indicated by high chlorophyll a concentrations), diatom, and freshness indices in the POM indicated enhanced fresh autochthonous-origin materials that dominated the mixed organic pool during the ebb tide compared to more degraded detritus during the flood tide. Tidal retention of organic matter and algal primary production were the most influential factors that differentiated the fatty acid composition of estuarine POM over the short time scale. The results of this study have important implications on the quality of POM at the time of sampling, especially in estuaries where mixed organic pools have multiple inputs and are strongly influenced by tidal cycles.
- Full Text:
- Date Issued: 2016
- Authors: Antonio, Emily S , Richoux, Nicole B
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/456336 , vital:75504 , xlink:href="https://doi.org/10.1007/s12237-015-0049-x"
- Description: The particulate organic matter (POM) in hydrodynamically variable habitats such as the lower reaches of estuaries can change in its content and quality on very short time scales (example, hourly), and these changes can potentially influence higher-level consumers in river-estuary-marine systems. Estuarine water samples were collected hourly for 12 h downstream in a small river to evaluate the fatty acid composition of POM over a tidal cycle. Fatty acid constituents of POM collected during the flood tide were dominated by the saturated, higher plant and bacterial fatty acids, whereas unsaturated, polyunsaturated, essential, and diatom-associated fatty acids dominated the POM collected during the ebb tide. Elevated algal biomass (as indicated by high chlorophyll a concentrations), diatom, and freshness indices in the POM indicated enhanced fresh autochthonous-origin materials that dominated the mixed organic pool during the ebb tide compared to more degraded detritus during the flood tide. Tidal retention of organic matter and algal primary production were the most influential factors that differentiated the fatty acid composition of estuarine POM over the short time scale. The results of this study have important implications on the quality of POM at the time of sampling, especially in estuaries where mixed organic pools have multiple inputs and are strongly influenced by tidal cycles.
- Full Text:
- Date Issued: 2016
Time-resolved luminescence from quartz: an overview of contemporary developments and applications
- Chithambo, Makaiko L, Pagonis, Vasilis, Ankjærgaard, Christina
- Authors: Chithambo, Makaiko L , Pagonis, Vasilis , Ankjærgaard, Christina
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124743 , vital:35658 , https://doi.org/10.1016/j.physb.2015.10.014
- Description: Time-resolved optical stimulation of luminescence has become established as a key method for measurement of optically stimulated luminescence from quartz, feldspar and α-Al2O3:C, all materials of interest in dosimetry. The aim of time-resolved optical stimulation is to separate in time the stimulation and emission of luminescence. The luminescence is stimulated from a sample using a brief light pulse and the emission monitored during stimulation in the presence of scattered stimulating light or after pulsing, over photomultiplier noise only. Although the use of the method in retrospective dosimetry has been somewhat limited, the technique has been successfully applied to study mechanisms in the processes leading up to luminescence emission. The main means for this has been the temperature dependence of the luminescence intensity as well as the luminescence lifetimes determined from time-resolved luminescence spectra. In this paper we review some key developments in theory and applications to quartz including methods of evaluating lifetimes, techniques of evaluating kinetic parameters using both the dependence of luminescence intensity and lifetime on measurement temperature, and of lifetimes on annealing temperature. We then provide an overview of some notable applications such as separation of quartz signals from a quartz–feldspar admixture and the utility of the dynamic throughput, a measure of luminescence measured as a function of the pulse width. The paper concludes with some suggestions of areas where further exploration would advance understanding of dynamics of luminescence in quartz and help address some outstanding problems in its application.
- Full Text: false
- Date Issued: 2016
- Authors: Chithambo, Makaiko L , Pagonis, Vasilis , Ankjærgaard, Christina
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124743 , vital:35658 , https://doi.org/10.1016/j.physb.2015.10.014
- Description: Time-resolved optical stimulation of luminescence has become established as a key method for measurement of optically stimulated luminescence from quartz, feldspar and α-Al2O3:C, all materials of interest in dosimetry. The aim of time-resolved optical stimulation is to separate in time the stimulation and emission of luminescence. The luminescence is stimulated from a sample using a brief light pulse and the emission monitored during stimulation in the presence of scattered stimulating light or after pulsing, over photomultiplier noise only. Although the use of the method in retrospective dosimetry has been somewhat limited, the technique has been successfully applied to study mechanisms in the processes leading up to luminescence emission. The main means for this has been the temperature dependence of the luminescence intensity as well as the luminescence lifetimes determined from time-resolved luminescence spectra. In this paper we review some key developments in theory and applications to quartz including methods of evaluating lifetimes, techniques of evaluating kinetic parameters using both the dependence of luminescence intensity and lifetime on measurement temperature, and of lifetimes on annealing temperature. We then provide an overview of some notable applications such as separation of quartz signals from a quartz–feldspar admixture and the utility of the dynamic throughput, a measure of luminescence measured as a function of the pulse width. The paper concludes with some suggestions of areas where further exploration would advance understanding of dynamics of luminescence in quartz and help address some outstanding problems in its application.
- Full Text: false
- Date Issued: 2016
Tourism potential as a tool for local economic development in Mnquma Local Municipality
- Authors: Mlondleni, Mzuyanda
- Date: 2016
- Subjects: Economic development -- South Africa -- Eastern Cape , Sustainable tourism -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/3095 , vital:20398
- Description: This research study aims to investigate what is there on offer for tourists in Mnquma Local Municipality, such as products (arts and craft, accommodation establishments and places of interests), their readiness for tourist consumption (state, accessibility), tourism routes and the understanding of communities on tourism and what can be derived from it to improve their livelihoods. This in turn will establish whether the tourism sector can be used as a tool for local economic development in the municipality. In the end, this study will make recommendations on what needs to be done in the municipality for the tourism sector to be more effective for the local communities and the municipality. The researcher has conducted a qualitative research study through the use of structured questionnaires as the data collection tool, in order to obtain information from specific population members of the concerned local municipality on tourism and LED issues. The study has been conducted from twenty three accommodation establishments in Mnquma Local Municipality. During the data collection period, the researcher discovered that these accommodation establishments are facing a number of challenges ranging from poor accessibility and signage for which the study is expected to address these in the recommendations. The study will include a purposive sample of tourism businesses in the hospitality sector in Mnquma Local Municipality. From the purposive sample, the researcher opted for total population sampling which is a type of purposive sampling technique where the researcher chooses to examine the entire population. At the end, researcher recommends that the municipality needs to address the infrastructural challenges such as roads (for accessibility to tourist sites), electricity and health centers to be able to support tourism economic activities. It also needs to ensure on the continuous hosting of events to address the seasonal nature of tourism and to market the municipality as an event destination. The researcher also recommended the establishment of partnerships with sector departments and parastatals such as SEDA, DTI, ECPTA, TEP etc. Lastly, being such a rural municipality with a rich history, culture and heritage, it is recommended that the municipality must prioritise tourism as a tool for Local Economic Development to better the lives of its population and to improve its economy.
- Full Text:
- Date Issued: 2016
- Authors: Mlondleni, Mzuyanda
- Date: 2016
- Subjects: Economic development -- South Africa -- Eastern Cape , Sustainable tourism -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/3095 , vital:20398
- Description: This research study aims to investigate what is there on offer for tourists in Mnquma Local Municipality, such as products (arts and craft, accommodation establishments and places of interests), their readiness for tourist consumption (state, accessibility), tourism routes and the understanding of communities on tourism and what can be derived from it to improve their livelihoods. This in turn will establish whether the tourism sector can be used as a tool for local economic development in the municipality. In the end, this study will make recommendations on what needs to be done in the municipality for the tourism sector to be more effective for the local communities and the municipality. The researcher has conducted a qualitative research study through the use of structured questionnaires as the data collection tool, in order to obtain information from specific population members of the concerned local municipality on tourism and LED issues. The study has been conducted from twenty three accommodation establishments in Mnquma Local Municipality. During the data collection period, the researcher discovered that these accommodation establishments are facing a number of challenges ranging from poor accessibility and signage for which the study is expected to address these in the recommendations. The study will include a purposive sample of tourism businesses in the hospitality sector in Mnquma Local Municipality. From the purposive sample, the researcher opted for total population sampling which is a type of purposive sampling technique where the researcher chooses to examine the entire population. At the end, researcher recommends that the municipality needs to address the infrastructural challenges such as roads (for accessibility to tourist sites), electricity and health centers to be able to support tourism economic activities. It also needs to ensure on the continuous hosting of events to address the seasonal nature of tourism and to market the municipality as an event destination. The researcher also recommended the establishment of partnerships with sector departments and parastatals such as SEDA, DTI, ECPTA, TEP etc. Lastly, being such a rural municipality with a rich history, culture and heritage, it is recommended that the municipality must prioritise tourism as a tool for Local Economic Development to better the lives of its population and to improve its economy.
- Full Text:
- Date Issued: 2016
Toward an automated botnet analysis framework: a darkcomet case-study
- Authors: du Bruyn, Jeremy Cecil
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/2937 , vital:20344
- Full Text:
- Date Issued: 2016
- Authors: du Bruyn, Jeremy Cecil
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/2937 , vital:20344
- Full Text:
- Date Issued: 2016