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The design of a modal interchange in Korsten, Port Elizabeth: santuary for the urban nomad

  • Authors: Magwabeni, Mpho
  • Date: 202015
  • Subjects: Transportation buildings -- South Africa -- Port Elizabeth -- Designs and plans Terminals (Transportation) -- South Africa -- Port Elizabeth -- Designs and plans , Commuting -- South Africa -- Port Elizabeth
  • Language: English
  • Type: Thesis , Masters , MArch
  • Identifier: http://hdl.handle.net/10948/41258 , vital:36424
  • Description: The inception of this treatise is derived simply from the identification of the current inefficient public transportation facilities in Nelson Mandela Bay. This is especially experienced in the Korsten precinct as there is a scattering of transport nodes and none of them can be particularly identified as the key transport node in the fabric. With the 2010 World Cup behind us and many infrastructures such as the Nelson Mandela Bay Stadium working as urban anchor of activity, the question still at hand is how the issue of integration between commuters and transportation can be addressed. This sets the scene for the application of an architectural resolution through the design of a transport interchange of the Korsten region. At present there are two functional informal taxi ranks that service the commuters of Korsten; the primary informal taxi node located on Attwell Street and the secondary informal taxi node on Cottrell Street. Currently they operate independently providing a service to people from different destinations, for instance Kleiner and Kempton Park. The first concern that arises is the proximity of the two taxi ranks in respect of the surrounding urban landscape. For these taxi nodes to be of service to the urban nomad they must be positioned in a more concentrated location to integrate efficiently with the urban fabric. Secondly, a thorough investigation into the informal trade is necessary to ascertain how it can enhance the street life and keep the edges activated and integrated. This treatise proposes the integration of the two independent taxi nodes with the proposed BRT system that has been implemented by the NMBM. This amalgamation would strengthen the urban landscape and create a place for the urban nomad. According to an article by Ian Ollis (2013) there is a dire need for accessible, affordable mass transport across South Africa .The bus rapid transit system was supposed to cure this woe, but implementation has been slow and mismanaged, especially in municipalities like Nelson Mandela Bay.
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  • Date Issued: 202015

Psychosocial behaviour of male learners after traditional male circumcision in Mdantsane, Eastern Cape

  • Authors: Bokolo, Nokwanda
  • Date: 2019
  • Subjects: Circumcision
  • Language: English
  • Type: Thesis , Masters , MPH
  • Identifier: http://hdl.handle.net/10353/16709 , vital:40764
  • Description: Male circumcision is an old Xhosa tradition that is still widely practised throughout South Africa. The Xhosa community in Eastern Cape, South Africa, values traditional male circumcision and regard it as a heritage from the ancestors, which prepares the initiate for transition to manhood. There are health problems and physical complications related to circumcision, although parental decisions regarding circumcision and the medical hygiene have been widely researched. However, scanty information exists on the psychological and social behaviours of male learners after male circumcision. The present study aims to fill the gap by exploring the psychosocial behaviors of male learners after traditional male circumcision in Eastern Cape, South Africa
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  • Date Issued: 2019

An integrated talent-management approach for competitive advantage at a selected company

  • Authors: Maxongo–Banzana, Ayanda
  • Date: 2018
  • Subjects: Employees -- Recruiting , Organizational effectiveness Personnel management Career development
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: http://hdl.handle.net/10948/31995 , vital:31907
  • Description: This study aims to explore the concept of talent management that has received attention since a group of McKinsey Consultant coined the phrase “the War for Talent” in 1997. In the 21 century, businesses are continually confronted with pressure of aligning employee talent with broader organizational strategies. This research explores key interventions and activities in order to get a better understanding of best practices and approaches to managing talent. The specific contribution of this treatise is developing a talentship model to enable integrated approach to managing talent in order to achieve competitive advantage at Company X. Through a single case study approach, this study examines the current talent management approach at Company X, and the author develops an Integrated Talent management model, named “The Max- Banz Talentship House Model” to address key challenges confronting the company from a talent management perspective in order to achieve competitive advantage.
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  • Date Issued: 2018

Partnerships and silos in municipal development : a study of Buffalo City Metropolitan Municipality (BCMM)

  • Authors: Siqoko, Kolisa
  • Date: 2018
  • Subjects: Public-private sector cooperation Local government Municipal services
  • Language: English
  • Type: Thesis , Masters , Rural Development
  • Identifier: http://hdl.handle.net/10353/16124 , vital:40668
  • Description: Infrastructural deficit-non-existent or derelict- especially at municipal level is a major challenge in post 1994 South Africa. The inability of municipalities to develop new infrastructure or maintain existing ones, such as roads, portable water facilities, drainage and refuse collection facilities, has often resulted to social unrest and associated economic hardship for citizens. While the municipal governments have usually blamed budgetary constraints for their infrastructural dilemma, there is yet no clear sustainable plan towards a multi-actor approach as a way of leveraging stakeholder resources to solve this nagging problem. In Buffalo City Metropolitan Municipality (BCMM), the local government seems to maintain a ‘hierachist’ and exclusivist role in infrastructural provisioning even though the Metro boasts of a pool of vibrant stakeholders – private sector, universities and non-governmental organisations. This study, therefore, examines the development model adopted by BCMM in its infrastructural development program, and also explores the extent to which this model has included or excluded other stakeholders in the city. The main aim of the study is to explore the resource capacity of different actors in the manucipality, and how these resources intersect with the infrastructural development program of the Metro Municipality. An insight into the findings reveals a ‘dis-configured relationship’ among the stakeholders which manifests in lack of stakeholder engagement among actors in project implementation, while at the same time maintaining a level of engagement in policy design for the purposes of validation. The study adopts a qualitative research design. It also draws on cultural theory of plural rationality.
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  • Date Issued: 2018

A satrean account of the role of social narratives in the identity-formation and self-conception of the queer and intersex subject

  • Authors: Phillips, Bianca Jewel
  • Date: 2017
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: http://hdl.handle.net/10962/41554 , vital:25101
  • Description: Successful, fully-fledged identity-formation and positive self-conception are contingent on the availability and sufficiency of social narratives. Following a Sartrean account of the human subject, identity will be shown to depend on externally-derived features (termed facticity). Facticity contains both material and social components. This thesis will show the two to be inextricably interlinked, and in so doing endorse Judith Butler's view that the material comes to us already seeped in social meaning. The interactive relationship between the discursive and the material will be illustrated by examining the phenomenon of intersexuality, in which the prevailing narrative of a dichotomized two-sex system has, through surgical, hormonal, and psychological procedures, become written into the flesh of non-binary individuals. The absence of affirming, diverse, and pluralistic narratives surrounding intersexuality, coupled with the imposition of the two-sex script, has (negatively) affected the material experiences, and subsequent identity-formation, of intersex individuals. Given the reliance of identity on socially-constituted facticities, the pursuit of flourishing, dignity, and an authentic and cohesive sense of self requires inclusive and diverse social scripts. Drawing on Mirander Fricker, I will elucidate how lacunae in the hermeneutical resource have resulted in confusion, unhappiness, and a lack of proper self-conception for individuals belonging to subjugated groups. Conversely, the availability of positive, diverse, and inclusive narratives will be shown to allow for more self-aware, self-determined subjects. I will ground my advocacy of inclusive, diverse social narratives in an examination of the beneficial genesis and development of the identity politics present in LGBTQIA++ movements (such as "Out and Proud", recognition of queer identity, and the development of non-binary gender). Assuming that self-understanding, authenticity, and flourishing are ethical goods that are valued, inclusive and affirming narratives for subjugated groups will be shown to be a normative necessity.
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  • Date Issued: 2017

Browsing as a demographic bottleneck in a semi-arid savanna: the effect of size and age on compensatory responses of Vachellia karroo seedlings after simulated herbivory

  • Authors: Perumal, Lavinia
  • Date: 2017
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: http://hdl.handle.net/10962/4899 , vital:20741
  • Description: Savannas are characterised by a continuous grass layer with scattered trees at varying densities. This vegetation structure is determined by several interacting factors, including fire, herbivory, resource competition and atmospheric CO2 concentration. The preservation of savanna biomes is important and a shift towards a woody biome threatens savanna globally. Bush encroachment which describes the shift towards domination of savannas by C3 woody plants, is especially acute in southern Africa. In semi-arid rangelands, encroachment progresses to dense thickets dominated by thorny and unpalatable bushes and trees. There is evidence that bush encroachment is driven by a reduction in fire and browsing events as well as their interaction. Despite browsing having strong effects on African savannas its isolated role in maintaining tree-grass coexistence has not received as much attention as the role of fire. Therefore the overall aim of this study was to examine the effects of browsing on seedlings of a commonly encroaching species, Vachellia karroo. Browsing was hypothesized to be a demographic release bottleneck for bush encroachment in a semiarid (MAP ~550mm) savanna in the Eastern Cape of South Africa, where fire has been historically rare. In a single study I explored the fate of V. karroo seedlings (less than a year old) following browsing in sub canopy and inter canopy microhabitats. Additionally, I explored how the fate of a seedling changed under high and low tree cover. Firstly, I investigated the type, intensity and frequency of herbivory, from both small and large herbivores, which seedlings were subjected to. Results revealed that browsing was severe and frequent with the majority of seedlings browsed more than twice over a 12 month period. Large browsers such as kudu and impala caused high seedling mortality (46%) while smaller browsers such as invertebrates were more effective at suppressing growth. Microhabitat had little impact on seedling survival, but significantly influenced plant compensatory growth. Reduced seedling growth following browsing was observed in the sub-canopy in comparison to seedling growth in full sunlight in the intercanopy, suggesting V.karroo may be shade intolerant. Secondly, the effect of tree cover on browsed seedlings was determined by quantifying browsing frequency and intensity at high and low tree cover. No differences in browsing intensity and frequency were observed between high and low tree cover. However, high tree cover due to bush encroachment limited seedling above ground growth. The aim of the second study was to investigate how V.karroo survival and growth were influenced by its age and size following simulated browsing. I explored this aim through field and greenhouse experiments. I was particularly interested in testing how plant sensitivity to varying defoliation intensities of repeated browsing varied with plant age (known ages of 6, 12, 16 and 30 weeks). There were large differences in mortality between the different age groups. Furthermore, age interacted with repeated browsing and negatively influenced seedling survival and regrowth. Older seedlings (16 and 30 week old) had greater survival and higher browsing frequencies resulted in greater mortality and reduced growth. The threshold age after which seedlings become more tolerant to herbivory occurs at an age of 28 weeks. Seedlings less than six weeks old experiencing intense (100 % defoliation)browsing had a very low probability (33%) of survival following just a single defoliation. Interestingly, all 16 week old seedlings regrew most of their foliage following a moderate (50%) defoliation with some plants overcompensating for leaf loss. The field study revealed two distinct demographic stages based on age and size (seedlings< 9 mm and saplings >9 mm in stem basal diameter (SBD)). Browsing had a strong negative effect on seedlings, resulting in reduced investment in leaf biomass. These findings suggest plant size and age can be used as robust predictors of a plants vulnerability to browsing. An increase in tree cover requires successful transitions of seedlings to saplings (also known as release). The results of this study suggest that in semi-arid savannas, browsing can impact tree cover through imposing a release bottleneck for tree seedlings and to lesser extent saplings. By limiting tree growth plants are kept in a disturbance trap and will therefore be exposed to not only browsers but fire. These findings also have important implications for tree-grass coexistence dynamics, suggesting that specific size and browsing thresholds should be considered in savanna management.
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  • Date Issued: 2017

Development of a MPEG-7 based multimedia content description and retrieval tool for internet protocol television (IPTV)

  • Authors: Ncube, Prince Daughing Ngqabutho
  • Date: 2017
  • Subjects: MPEG (Video coding standard) Digital television Multimedia communications
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: http://hdl.handle.net/10353/4893 , vital:28738
  • Description: Search and retrieval of multimedia content from open platforms such as the Internet and IPTV platforms has long been found to be hugely inefficient. It has been noted that a major cause of such inefficient results is the improper labeling or incomplete description of multimedia content by its creators. The lack of adequate description of video content by the proper annotation of video content with the relevant metadata leads to poor search and retrieval yields. The creation of such metadata itself is a major problem as there are various metadata description standards which users could employ. On the other hand there are tools such as FFprobe that can retrieve important features of video that can be used in searching and retrieval. The combination of such tools and metadata description standards could be the solution to the metadata problem. The Multimedia Content Description Interface (MPEG-7) is an example of a metadata description standard. It has been adopted by TISPAN for the description of IPTV multimedia content. The MPEG-7 standard is rather complex, seeing as it has over 1200 global Descriptors and Description Schemes which a user would have to know in order to implement such technology. This complexity is a nuisance when we consider the existence of multitudes of amateur video producers. These multimedia content creators have no idea how to use the MPEG-7 standard to annotate their creations with metadata. Consequently, overloading of the IPTV platform with content that has not been annotated in a standardized manner occurs, making search and retrieval of the multimedia content (videos, in this instance) inefficient. Therefore, it was imperative to try and determine whether the use of the MPEG-7 standard could be made much easier by creating a tool that is MPEG-7 enabled which will allow for the annotation of video content by any user without concerning themselves about how to use the MPEG-7 standard. In attempting to develop a tool for metadata generation, it was incumbent for us to understand the issues associated with metadata generation for users wishing to create IPTV services. An extensive literature review on IPTV standardization was carried out to determine the issues associated with metadata generation for IPTV and their proposed solutions. An experimental research approach was taken in an attempt to figure out if our proposed solution to the lack of technical expertise by users about the MPEG-7 standard could be the final solution to the metadata generation problem. We developed a Multimedia Content Description and Management System (MCDMS) prototype which enabled us to describe video content by annotating it with 16 different metadata elements and storing the descriptions in XML MPEG-7 format. Incremental development and re-use oriented development were used during the development phase of this research. The MCDMS underwent functional testing; smoke testing of the individual system components and Big Bang integration testing for the combined components. Our results indicate that the more metadata is appended to a video as description the better it is to search for and retrieve. The MCDMS hides the complexity of MPEG-7 metadata creation from the users. With the effortless creation of MPEG-7 based metadata, it becomes easier to annotate videos. Consequently, search and retrieval of video content becomes more efficient. It is important to note that the description of multimedia content remains a complex feat. Even with the metadata elements laid out for users, there still exist other issues that affect metadata creation such as polysemy and the semantic gap. However, the provision of a tool that does the MPEG-7 standardizing behind the scenes for users when they upload a video makes the description of multimedia content in a standardized manner a much easier feat to achieve.
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  • Date Issued: 2017

Ionospheric disturbances during magnetic storms at SANAE

  • Authors: Hiyadutuje, Alicreance
  • Date: 2017
  • Language: English
  • Type: text , Thesis , Masters , MSc
  • Identifier: http://hdl.handle.net/10962/54956 , vital:26639
  • Description: The coronal mass ejections (CMEs) and solar flares associated with extreme solar activity may strike the Earth's magnetosphere and give rise to geomagnetic storms. During geomagnetic storms, the polar plasma dynamics may influence the middle and low-latitude ionosphere via travelling ionospheric disturbances (TIDs). These are wave-like electron density disturbances caused by atmospheric gravity waves propagating in the ionosphere. TIDs focus and defocus SuperDARN signals producing a characteristic pattern of ground backscattered power (Samson et al., 1989). Geomagnetic storms may cause a decrease of total electron content (TEC), i.e. a negative storm effect, or/and an increase of TEC, i.e. a positive storm effect. The aim of this project was to investigate the ionospheric response to strong storms (Dst < -100 nT) between 2011 and 2015, using TEC and scintillation measurements derived from GPS receivers as well as SuperDARN power, Doppler velocity and convection maps. In this study the ionosphere's response to geomagnetic storms is determined by the magnitude and time of occurrence of the geomagnetic storm. The ionospheric TEC results of this study show that most of the storm effects observed were a combination of both negative and positive per storm per station (77.8%), and only 8.9% and 13.3% of effects on TEC were negative and positive respectively. The highest number of storm effects occurred in autumn (36.4%), while 31.6%, 28.4% and 3.6% occurred in winter, spring and summer respectively. During the storms studied, 71.4% had phase scintillation in the range of 0.7 - 1 radians, and only 14.3% of the storms had amplitude scintillations near 0.4. The storms studied at SANAE station generated TIDs with periods of less than an hour and amplitudes in the range 0.2 - 5 TECU. These TIDs were found to originate from the high-velocity plasma flows, some of which are visible in SuperDARN convection maps. Early studies concluded that likely sources of these disturbances correspond to ionospheric current surges (Bristow et al., 1994) in the dayside auroral zone (Huang et al., 1998).
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  • Date Issued: 2017

Critical analysis of the implementation of government-wide monitoring and evaluation system in Eastern Cape municipalities - case study of Chris Hani District Municipality

  • Authors: Mviko, Vuyiseka Nosipho
  • Date: 2016
  • Subjects: Government productivity -- South Africa -- Eastern Cape -- Evaluation Management information systems Government accountability
  • Language: English
  • Type: Thesis , Masters , MPA
  • Identifier: http://hdl.handle.net/10353/2877 , vital:28117
  • Description: South Africa is faced with enormous backlog of service delivery which is attributed to the apartheid government and performance challenges especially in areas like Eastern Cape. It was then identified that there was no uniform system to monitor and evaluate performance of government institutions and the impact of the services they render to the community. The government then adopted a monitoring and evaluation system called Government - Wide Monitoring and Evaluation System for all government departments and municipalities. This study analysed the implementation of this Government-Wide Monitoring and Evaluation System in Eastern Cape Municipalities with specific reference to Chris Hani District Municipality. It further assessed the effectiveness of this monitoring and evaluation system and whether its implementation has improved performance in municipalities, so as to identify the hampering limitations and the appropriate improvement strategies that can be recommended. In order to reach conclusions to the questions and objectives, the study was conducted using qualitative research methodology. Interviews were conducted as described in chapter 3. Chapter 4 presents the findings that were achieved from the interviews and the interpretation of these findings whilst chapter 5 presents conclusion and recommendations based on the findings.
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  • Date Issued: 2016

The leadership characteristics and development of Doctor Trudy Thomas : a case study in servant-leadership

  • Authors: Fietze, Jennifer Anne
  • Date: 2016
  • Subjects: Servant leadership , Thomas, Trudi , Leadership -- South Africa -- Case studies
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: vital:860 , http://hdl.handle.net/10962/d1020184
  • Description: Doctor Trudy Thomas is a leader that served; as a medical doctor and as a public servant over five decades during and after the apartheid era in South Africa. The aim of this qualitative study was to identify the leadership characteristics that are evident in Doctor Thomas, the former MEC for Health for the Province of the Eastern Cape; as a leader and to explore how they developed over five decades, given her role within healthcare in South Africa. The first requirement of a servant-leader according to Robert Greenleaf (the contemporary pioneer of servant-leadership) (Greenleaf, 1977), is that the leader is a servant first and starts with a desire to serve. Doctor Thomas started her professional life as a medical missionary doctor, a profession that by its nature is serving and ultimately healing, in the poor rural communities of the Eastern Cape. Her leadership grew out of her initial concern for her patients and their communities and by the opportunities that she was presented with to apply her skills to serve. She was able to identify the deeper needs within these communities and was able to envision practical solutions to these problems, enlisting the assistance of others. Throughout her leadership journey she exhibited humility, and many other trademarks of a servant-leader. She did not see herself as a leader, believing rather that it was a privilege to serve and help people. This study was therefore able to conclude that the leadership that Doctor Thomas has exhibited is that of a servant-leader and that her leadership journey was unintentional and grew out of her desire and ability to serve. This thesis consists of three separate yet interrelated sections. Section One, The Academic Case Study is a holistic, biographical academic case study on an individual. The outcomes of this research are presented as an academic paper, which includes a condensed literature review, results and discussion, as well as recommendations for future research. It also presents recommendations regarding the application of servant-leadership in service industries like Healthcare in South Africa. The presentation of the results is predominantly qualitative with some quantitative aspects. Section Two, The Literature Review presents an extensive review of literature that relates to the phenomena of leadership; servant-leadership; leader and leadership development; servant-leadership development through service and finally servant-leadership in South Africa. Other aspects like Ubuntu and Unintentional leadership are examined. The literature review conducted serves as a broad foundation for understanding servant-leadership but does not purely focus on the issues of this individual study. Section Three, The Research Methodology is an outline of the research aim and objectives, and the research paradigm that has been adopted. The discussion also details the research methodology; the case study method; an inductive approach; an intersubjective position; the individual researched; data collection techniques and analysis; objectivity; issues of quality; ethics; and the limitations of this research.
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  • Date Issued: 2016

Workplace bullying and job engagement on the intention to leave among nurses at selected hospitals in the Chris Hani district, Eastern Cap

  • Authors: Ngamani, Theolin Busisiwe
  • Date: 2016
  • Subjects: Bullying in the workplace -- South Africa -- Eastern Cape Harassment -- South Africa -- Eastern Cape Intimidation -- South Africa -- Eastern Cape
  • Language: English
  • Type: Thesis , Masters , MCom
  • Identifier: http://hdl.handle.net/10353/12700 , vital:39300
  • Description: Orientation: Workplace bullying and job engagement influence the degree of employees’ intention to leave their jobs. Research purpose: The overall objective of this research was to establish the relationship between workplace bullying and job engagement and how they impact on the intention to leave. Motivation for the study: Nursing turnover seems to be one of the challenges facing health care sector in South Africa. Workplace bullying and job engagement need to be examined in order to retain best nurses as they influence the degree of employee’s intention to leave. Research approach, design and method: A quantitative research design was used to investigate the degree to which workplace bullying and job engagement predict on the intention to leave. The data was collected using a self-administered questionnaire from a simple random sample of 228 nurses. Pearson correlation and hierarchical multiple regression analyses were employed to test the relationship between workplace bullying, job engagement and the intention to leave. Main findings: Four hypotheses were extracted: There is a significant relationship between workplace bullying and the intention to leave, there is a significant relationship between job engagement and the intention to leave, there is a significant relationship between workplace bullying and job engagement, and there is a significant combined effect of workplace bullying and job engagement on prediction of the intention to leave. The results highlighted a significant combined effect of workplace bullying and job engagement on prediction of the intention to leave. Practical Implications: Based on the findings, the study concludes that workplace bullying and job engagement in nursing are prevalent and have a negative impact on the intention to leave as most of the victims are thinking of quitting once bullying has taken place. Contribution: This study provides a holistic understanding of workplace bullying and job engagement and how they impact on the intention to leave. The findings reflect a significant combined effect of workplace bullying and job engagement on prediction of the intention to leave. It was indicated that workplace bullying and job engagement influenced the extent of employees’ intention to leave.
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  • Date Issued: 2016

An evaluation of security issues in cloud-based file sharing technologies

  • Authors: Fana, Akhona
  • Date: 2015
  • Subjects: Cloud computing -- Security measures Computer networks -- Security measures Computer security
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: http://hdl.handle.net/10353/1841 , vital:27565
  • Description: Cloud computing is one of the most promising technologies for backup and data storage that provides flexible access to data. Cloud computing plays a vital role in remote backup. It is so unfortunate that this computing technique has flaws that thrilled and edgy end users in implementing it effectively. These flaws include factors like lack of integrity, confidentiality and privacy to information. A secure cloud is impossible unless the computer-generated environment is appropriately secured. In any form of technology it is always advisable that security challenges must be prior identified and fixed before the implementation of that particular technology. Primarily, this study will focus on finding security issues in cloud computing with the objective of finding concerns like credential theft and session management in the ―Cloud‖. Main arguments like HTTP banner disclosure, Bash ―ShellShock‖ Injection and password issues were discovered during the stages of study implementation. These challenges may provide information that will permit hackers in manipulating and exploiting cloud environment. Identifying credential theft and session management in cloud-based file sharing technologies a mixed method approach was implemented throughout the course of the study due to the nature of study and unity of analysis. Penetration tests were performed as security testing technique. Prevention and guideline of security threats leads to a friendly and authentic world of technology.
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  • Date Issued: 2015

Case study : profitability drivers in the South African airline industry : a comparative analysis of SAA and Comair

Teaching for conceptual understanding : an analysis of selected teachers' practice

  • Authors: Kashima, Andreas Akwenye
  • Date: 2015
  • Subjects: Teacher effectiveness -- Namibia , Student-centered learning -- Namibia , Constructivism (Education) -- Namibia , Problem solving , Teachers -- In-service training -- Namibia
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:2037 , http://hdl.handle.net/10962/d1017348
  • Description: The purpose of this study was to explore how teachers’ practice either supports or constrains learners’ conceptual understanding. The study is structured within an interpretive paradigm. The research takes the form of a case study and focused on the teaching practice of two purposefully selected teachers who had been identified as being effective/successful practitioners. The data was collected in two stages. In the first stage, qualitative data was collected by video recording six classroom lessons, three for each of the two participating teachers. In stage 2, participating teachers were individually interviewed. In these interviews the two participating teachers were asked to reflect on their classroom practice, through a process of stimulated recall, where their actions seemed to either support or constrain the development of learners’ conceptual understanding. The study identified a number of elements of the two teachers’ practice that related to the development of learners’ conceptual understanding in the classroom. These include building on learners’ prior knowledge, the use of concrete manipulatives, questioning that promotes critical thinking, and the use of multiple representations and connections. The study also identified elements of the two teachers’ practice that had the potential to constrain the development of learners’ conceptual understanding. These include the lack of opportunities for co-operative or peer-oriented learning, the absence of questioning that leads to discussion, and a scarcity of activities that build mathematical concepts through hands-on engagement. The study highlights the need for supporting teachers and helping them strengthen their practice with regard to those activities that support the development of conceptual understanding in their learners.
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  • Date Issued: 2015

The development of biological tools to aid in the genetic investigation of the black (Diceros bicornis) and white (Ceratotherium simum) rhinoceros mitochondrial genomes

  • Authors: Parsons, Michelle
  • Date: 2015
  • Language: English
  • Type: text , Thesis , Masters , MSc
  • Identifier: http://hdl.handle.net/10962/56059 , vital:26769
  • Description: The black (Diceros bicornis) and white (Ceratotherium simum) rhinoceros are found in South Africa. A decline in the populations of these species has resulted due to human activities such as habitat fragmentation and poaching. This has contributed to the loss of genetic diversity amongst the black and white rhinoceros. Conservation and anti-poaching efforts are needed to help maintain genetic diversity. These efforts could be improved through the development of non-invasive techniques to examine DNA from threatened animals. The aim of this research was to develop a molecular technique which would allow for the identification of the black and white rhinoceros and to develop a molecular technique which would allow for intraspecies genetic variation to be examined. DNA extractions were performed on matched faecal and tissue samples that were collected from two regions in South Africa. Polymerase chain reaction (PCR) primer sets were designed to investigate several regions of the rhinoceros mitochondrial genome. PCR optimisation was completed for the target regions. Sequencing was conducted on all final PCR products. The cytochrome c oxidase subunit 1 (COIi) gene allowed for the rhinoceros family to be identified. This region was digested with the HindIII restriction enzyme, which allowed for the specific identification of either the black or white rhinoceros. A subsequent region of the cytochrome c oxidase subunit 1 (COIii) as well as the D-loop, hypervariable regions (HV1 and HV2), cytochrome b (cytb) and 16s rRNA regions were investigated. These regions displayed potential for establishing geographic origin for black rhinoceros samples, whereas the D-loop and HV2 show potential for the white rhinoceros. The white rhinoceros displayed sequence variation in the HV2 and cytb region, while variation was observed in the COIi and HV1 for the black rhinoceros. All investigated target regions allowed for the rhinoceros family to be identified. The COI (COIi and COIii), HV2 and cytb regions allowed for the subspecies of rhinoceros to be identified, however the D-loop was not able to identify the white rhinoceros species. The 16s rRNA and HV1 regions allowed for the correct subspecies of rhinoceros to be identified, however as the primers were only compatible for the black rhinoceros therefore a subsequent investigation is required for the white rhinoceros. The establishment of this novel PCR based technique to identify white and black rhinoceros will allow for efficient species identification in wildlife forensic cases. A biological method was established to study intraspecies variation for the white and black rhinoceros; however the investigated target regions did not yield sufficient genetic variation. The core techniques developed in this study will be valuable for future studies that wish to investigate genetic variation in mammal species.
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  • Date Issued: 2015

The role of child support grants in poverty alleviation in rural communities

  • Authors: Yapi, Kanyisa
  • Date: 2015
  • Subjects: Child welfare -- South Africa , Child support -- South Africa
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: http://hdl.handle.net/10948/7710 , vital:23396
  • Description: This study seeks to investigate the challenges faced by the recipients of the child support grant, with special reference to Morgan Bay, a rural area under the aegis of the Amathole District Municipality in East London. The child support grant is a strategy that was introduced to alleviate poverty in previously disadvantaged communities. The child support grant replaced the state maintenance grant. South Africa has high levels of unemployment; and this situation is considered to be a major contributing factor to poverty. After the apartheid era, the African National Congress (ANC) led government introduced a litany of redistributive policy frameworks aimed at reversing the imbalances of the past created by the apartheid government. The child support grant, which was established during the year 1998, is viewed as one of the strategies introduced by the South African government aimed at alleviating poverty caused by the lack of jobs. The aim of the study is to assess the implementation of the child support grant impact as a developmental strategy in rural communities, such as Morgan Bay. The study seeks to determine how the child support grant redistribution has affected rural communities. In other words, the research seeks to determine whether the child support grant redistribution has affected rural communities positively or negatively, and to ascertain whether it has mitigated the impact of socio-economic challenges in rural communities. The study also seeks to explore other strategies, which could be implemented to supplement the child support grant, and possibly decrease the level of dependence on the child support grant – by having a back-up strategy for alleviating poverty.
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  • Date Issued: 2015

A critical study in the management of the female adolescent voice

  • Authors: Goosen, Gysbert Jacobus
  • Date: 2014
  • Subjects: Voice, Change of , Women singers
  • Language: English
  • Type: Thesis , Masters , MMus
  • Identifier: http://hdl.handle.net/10948/3438 , vital:20430
  • Description: This treatise is a qualitative study that critically explores a current body of knowledge significant to the development of the female adolescent voice. The female adolescent voice is a field that is relatively under-researched in comparison to the male adolescent voice, although research in this regard has shown an increase in interest in the last two decades (Gackle 2011: 11). However, information related to the male adolescent voice still far outweighs the female adolescent voice. This study, through the use of six secondary objectives, identifies and highlights areas of the female adolescent voice development, where much of the current research lacks depth and insight. It therefore analyses and compares applicable literature in an attempt principally to contribute to a more structured and academic approach in this field. Insight into the auditory effects that occur during physiological mutation is further supported by investigating the functioning of the female voice registers and the respective influences of these on the different phases of vocal development of the female adolescent. The assistance and expertise of the conductor in this process, as well as in common areas such as voice classification, auditioning, voice placement, and repertoire selection are investigated to further consolidate and compare possible interventions for problems pertaining specifically to the female adolescent voice. The study concludes with a summary of the treatise and proposes suggestions for further study in this field.
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  • Date Issued: 2014

Exploring the role of job satisfaction and organizational justice in determining employee motivation among nurses at Frontier Hospital, Queenstown

  • Authors: Soga, Thabile
  • Date: 2014
  • Subjects: Job satisfaction -- Organizational justice , Employee motivation -- Distributive justice
  • Language: English
  • Type: Thesis , Masters , MCom (Industrial Psychology)
  • Identifier: vital:11562 , http://hdl.handle.net/10353/d1015062 , Job satisfaction -- Organizational justice , Employee motivation -- Distributive justice
  • Description: The aim of this study was to explore the role of job satisfaction and organizational justice in determining employee motivation among nurses at Frontier Hospital, Queenstown. For this purpose data was collected from the nurses at Frontier Hospital in Queenstown, in the Eastern Cape. A sample of 75 nurses was drawn from the population. Results of the study indicated that the study variables are significantly and positively correlated with one another. Job satisfaction was found to be significantly and positively correlated with employee motivation. Organizational justice was also found to be significantly positively correlated with employee motivation. Moreover, a positive and significant relationship between job satisfaction and organizational justice was found. The findings of this study are helpful in the health industry in order to design human resources policies, which will reduce the turnover of nurses by increasing their motivation through increasing job satisfaction and organizational justice.
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  • Date Issued: 2014

Ore distribution controls of the Navachab Gold Mine, Damara Belt, Karibib District, Namibia

  • Authors: Slabbert, W L
  • Date: 2014
  • Subjects: Gold ores -- Namibia , Ore deposits -- Namibia
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5082 , http://hdl.handle.net/10962/d1016364
  • Description: The Navachab Gold mine, an orogenic lode gold deposit, is located in the Karibib region of the Pan-African (ca. 550-500) Damara belt of central Namibia. Gold mineralisation is developed within the steeply NW dipping limb of the Karibib dome. Here, ore envelopes trend along three main orientations: a) trends shallowly towards the NE (the down plunge extent), b) trends sub-vertically in and along the down plunge extent and c) trends sub-horizontally across the down plunge extent. The down plunge extent represents the bulk of the gold mineralisation, hosting the only high grade ores mined at Navachab. As such, past work primarily focused on establishing the controls to the mineralisation observed here. The sub-vertical and sub–horizontal ore trends are seen as secondary, lower grade, being hosted in the footwall. By cutting pushbacks into the footwall, in an effort to regain access to high grade pit bottom, future gold production almost exclusively relies upon optimally mining these ores. This underlines the importance to investigate and outline the mineralising controls to the secondary ore trends. This study identified the following prevailing quartz vein sets developed within the footwall, set (1) dips shallowly towards the NE (conjugate vein set), (2) steeply towards the NW (bedding parallel veins) and (3) steeply towards the SE (S2 foliation parallel). The NW and SE dipping sets contain high average gold grades, occurring at an infrequent vein density. The NE dipping veins, as a result of occurrence density alone, was highlighted as the dominant gold hosting set. Veining occurred during the late stages of the NW-SE directed, sub-horizontal shortening (D2) event and is associated with top-to-the-NW thrusting and NW-verging folds. Re-Os molybdenite dating from auriferous quartz veins indicates mineralisation occurred at 525-520 Ma. As crustal shortening amplified the Karibib dome, flexural flow developed fractures along bedding planes, providing the control to bedding parallel veins (NW dipping). With continued crustal compression the dome later experienced fold lock up associated with reduced mean rock stress and sub-horizontal extension occurred along the steeply NW dipping limb. Horizontal extensional gashes sucked in fluids to form the shallowly NE dipping conjugate vein set. These features suggest the regional D2 strain as the first-order control to quartz vein development, down plunge and within the footwall ores. To further define the secondary ores, lithological and structural controls were evaluated on a more detailed local scale. With equal amounts of biotite schist and calc-silicate host rock (bulk of the footwall lithology) material analysed, the biotite schist units were found to contain a larger volume amount of quartz veins. The mineralisation incurred is also developed at higher average gold grades compared to that of the calc-silicates, demonstrating biotite schist having the optimal rheology for quartz vein emplacement. Normal faulting and thrusting occurs widespread, at all scale levels, across the footwall. These were primarily observed along bedding foliations and secondly at higher angles cutting across foliation. The study did not constrain the extent of these, but can conclude faulting plays a very prominent role in re-distributing the secondary ores parallel to bedding along sub-vertical trend planes. Great care should be placed in properly modelling these with 3D software such as Leapfrog. The Navachab gold mineralisation came about as a result of convergent and collisional tectonics activating metamorphic dehydration of the crustal metapelites. As these fluids ascended they absorbed gold from the crust, emplaced by either a magmatic or paleo-placer source. The gold enriched hydrothermal fluids amalgamated in large scale 1ste order structures (shearing of the steep NW limb of the Karibib Dome, the Mon Repos Thrust Zone) that acted as primary active fluid path ways. In the case of Navachab the gold enriched fluid fluxed along these pathways while interacting with fluid sinks related to a physical throttle (brittle schist, folding, bedding parallel shears) and/or a chemical trap (marbles). By summarising and detailing the fluid sinks and active fluid pathways identified by this and previous works, it is strongly recommended that a mineral approach system be designed and implemented as targeting model to lead future exploration endeavours.
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  • Date Issued: 2014

Voluntary disclosure programmes and tax amnesties: an international appraisal

  • Authors: Jaramba, Toddy
  • Date: 2014
  • Subjects: Tax amnesty -- South Africa , Tax evasion -- South Africa , Investments, Foreign -- Taxation -- South Africa , Tax collection -- South Africa , Tax administration and procedure -- South Africa
  • Language: English
  • Type: Thesis , Masters , MCom
  • Identifier: vital:911 , http://hdl.handle.net/10962/d1015666
  • Description: Tax amnesties are government programs that typically allow a short period of time for tax evaders to voluntarily repay previously evaded taxes without being subject to penalties and prosecution that discovery of such tax evasion normally brings. Tax amnesties differ widely in terms of coverage, tax types, and incentives offered. A state’s Voluntary Disclosure Programme is another avenue available to taxpayers to assist them in resolving their state tax delinquencies. This programme is an on-going programme as compared to a tax amnesty, which is there for a limited time period only. The main goal of the research was to describe the tax amnesty and the voluntary disclosure programmes in South Africa and to assess their advantages and disadvantages. This thesis also discussed another form of voluntary disclosure programme, referred to as an Offshore Voluntary Disclosure Programme, which allows taxpayers with unreported foreign bank accounts, and presumably unreported foreign income, to voluntarily disclose their affairs. The study found that, due to tax amnesties, Government raises more tax revenue not only in the short run from collecting overdue taxes but also by bringing former non-filers back into the tax system for the long run. It was also found that, initially short-run revenue brought in from overdue taxes will be positive for the first amnesty and then decline each time the amnesty is offered repeatedly. The reason for the decline in revenue might be that tax amnesties provide incentives for otherwise honest taxpayers to start evading taxes because they will anticipate the offering of future amnesties, thereby weakening tax compliance. The costs associated with amnesty programmes include negative long run revenue impact and also that amnesty programmes reduce compliance by taxpayers in the long-run. In South Africa tax amnesties, especially the voluntary disclosure programme, are likely to be successful since they will increase the revenue yield and also bring non-filers back on the tax rolls.
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  • Date Issued: 2014
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