A framework for scoring and tagging NetFlow data
- Authors: Sweeney, Michael John
- Date: 2019
- Subjects: NetFlow , Big data , High performance computing , Event processing (Computer science)
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/65022 , vital:28654
- Description: With the increase in link speeds and the growth of the Internet, the volume of NetFlow data generated has increased significantly over time and processing these volumes has become a challenge, more specifically a Big Data challenge. With the advent of technologies and architectures designed to handle Big Data volumes, researchers have investigated their application to the processing of NetFlow data. This work builds on prior work wherein a scoring methodology was proposed for identifying anomalies in NetFlow by proposing and implementing a system that allows for automatic, real-time scoring through the adoption of Big Data stream processing architectures. The first part of the research looks at the means of event detection using the scoring approach and implementing as a number of individual, standalone components, each responsible for detecting and scoring a single type of flow trait. The second part is the implementation of these scoring components in a framework, named Themis1, capable of handling high volumes of data with low latency processing times. This was tackled using tools, technologies and architectural elements from the world of Big Data stream processing. The performance of the framework on the stream processing architecture was shown to demonstrate good flow throughput at low processing latencies on a single low end host. The successful demonstration of the framework on a single host opens the way to leverage the scaling capabilities afforded by the architectures and technologies used. This gives weight to the possibility of using this framework for real time threat detection using NetFlow data from larger networked environments.
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- Date Issued: 2019
A historical sociolinguistic study on the conceptualisation and application of justice and law kwisizwe samaXhosa as documented in and extracted From SEK Mqhayi And W.W. Gqoba’s selected writings
- Authors: Ntshingana, Sanele
- Date: 2019
- Subjects: Gqoba, William Wellington , Mqhayi, S. E. K. , Xhosa literature -- History and criticism , Law in literature , Justice in literature
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/115339 , vital:34115
- Description: This study seeks to investigate the original meanings contained in lexical terms relating to law (umthetho) and justice (ubulungisa) and their application in the precolonial Xhosa social society as they make appearance in SEK Mqhayi’s novel Ityala lamawele (1914) and WW Gqoba’s Isizwe esinembali, (1873-188/2015). Both of these works were written and initially published at the early point of contact of amaXhosa with the art of writing, and so are set in a ‘traditional’ setting (in the case of Mqhayi) and at early contact with European societies in Eastern Nguni region. This academic endeavour is undertaken by employing critical discourse theoretical framework. The purpose is to investigate the conceptualisation of law and justice amongst amaXhosa, and the extent to which this conceptualisation reflects the philosophical worldview of amaXhosa, as embedded in their language. The paper makes inferences about conceptualisation of law and justice in precolonial Xhosa social settings, and offers proposals on what this conceptual understanding could mean if its potential contribution to the contemporary understanding and application of law and justice in South Africa could be tapped into. The motivation for this study emanates from the current intellectual contestations in higher education that today’s curricula present western knowledge systems as universal while marginalising indigenous epistemologies in teaching, learning and research practices. At the centre of these debates is how research, social and scientific thinking in humanities, is profoundly shaped by imported, racist, western “canonical” texts and theories. The arguments presented by various scholars argue that this enterprise firmly roots the collective imagination of students about the past and present in racist Eurocentric schematic frames, thus creating a problem of identity loss, and an intentional distortion of historical truths. The space for knowledge systems and experiences reflecting African memory and imagination is not only neglected, but distorted too. In this context, the study seeks to delve deeper into how African languages can be used to reconstruct knowledge systems that reflect African ways of understanding society as part of creating a curriculum that depicts “multiversal” ways of knowing (Tisani 2000; Santos, 2014). This study makes several findings, chief amongst which is that the legal and justice systems of the precolonial Xhosa society was both corrective as opposed to today’s punitive court system that South Africa inherited, largely from the West. It seeks to prove that AmaXhosa’s precolonial legal and justice system was focused more on reintegrating the offender back into society. The study further will show how the precolonial amaXhosa justice system was embedded in the concepts of ubulungisa (correct and re-intergrate) and isohlwayo (that which brings one to basics). Through discourse analysis of the early literary isiXhosa texts, the thesis discovers that the application of ubulungisa amongst amaXhosa back then was consistent with the philosophies embedded in the concepts. By exposing the collaboration networks between the white missionaries and the colonial administrators of the nineteenth century, the thesis will show how conspiracies were directed at erasing and displacing these indigenous epistemologies and to replacing them with colonial memories. To this end, missionary accounts, explorer diary entries and reports and early lexicographic material were produced and archived. Furthermore, this study makes a proposition that early written Xhosa texts be entrenched in the today’s curricula in order inform the process of making sense of the social experiences and knowledge systems of the indigenous people of South Africa, from the precolonial-past to the present. Throughout the study, the thesis presents a proposition these early Xhosa texts be studied in relation to their intellectual contributions. This, it is hoped, will boldly challenge the canonised knowledge and racist assumptions about the African knowledge systems and experiences.
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- Date Issued: 2019
A hydrogeological investigation of Grahamstown, assessing both the dynamics and quality of the local groundwater system
- Authors: Smetherham, Kyle Norman
- Date: 2019
- Subjects: Hydrogeology -- South Africa -- Makhanda , Water quality -- South Africa -- Makhanda , Groundwater -- Quality -- South Africa -- Makhanda
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/94444 , vital:31045
- Description: In many parts of South Africa, complete allocation of surface water reservoirs together with current drought conditions has led to serious water shortages and subsequent awareness regarding the importance to save water. Grahamstown is no different, with water problems relating to low supply and high demand being compounded by insufficient treatment capacity and aging infrastructure. Groundwater is an alternative water resource that could potentially act as a supplementary and/or emergency supply to the town, reducing the reliability on surface reservoirs. Groundwater however, is a hidden resource and requires an understanding of various aquifer properties and continuous monitoring and modelling so not to permanently disrupt the natural system but rather achieve sustainable management. Grahamstown is situated towards the northern extent of the Cape Fold Belt (CFB) system, within a synclinal fold structure. The local geology forms two local aquifer systems beneath Grahamstown that directly influence both the dynamics and quality of the groundwater. These underground reservoirs are the Witpoort and Dwyka aquifers and can be described as a semi-confined, fractured, quartzitic sandstone aquifer and an unconfined, fractured, tillite aquifer, respectively. Separating these aquifer systems is a shale aquitard, although due to the fractured nature of the rocks in the region there is most likely some groundwater interaction between them. Evaluation of geological formations together with the monitoring of 31 local boreholes presented a valuable conceptualisation of the local system and allowed for the application of methods to estimate recharge. Recharge estimation is one of the most crucial factors when managing aquifer systems as it can be used to determine what proportion of rainfall contributes to the subsurface reservoir and therefore, the sustainable amount that can be extracted. Various methods have been developed to estimate recharge, however due to the uncertainty surrounding groundwater systems, especially fractured aquifers, it was important to apply multiple methods to validate results. The water-table fluctuation (WTF) and cumulative rainfall departure (CRD) are two methods that were used in the present study to determine recharge. These methods rely on water-table changes in boreholes and specifically how they respond to rainfall events. Along with the WTF and CRD methods, a modelling approach was also used to estimate recharge which focused on the dynamics of a natural groundwater outlet, termed the Fairview Spring. This natural spring system is located just outside the main town of Grahamstown, within the Witpoort aquifer system, and is an important water resource to many residents due to poor supply and quality of municipal water. Monitoring the discharge of this spring allowed for the development of a model which attempts to recreate the discharge conditions observed. Along with groundwater recharge, other processes added to the model include evapotranspiration, storage, interflow spring outflow and groundwater outflow. Several different model simulation scenarios provided valuable insight into the greater groundwater dynamics. In terms of groundwater quality, nine borehole samples and one spring sample were analysed for major ions (Ca, Na, K, Cl, Mg, SO4, HCO3), metals (Cu, Fe, Mn) as well as pH and electrical conductivity. Overall electrical conductivity levels and major ion concentrations were lower in the Witpoort aquifer indicating a better groundwater quality compared to that of the Dwyka aquifer. Of the three metals included in the analysis, Mn proved to be the most significant and the highest concentrations were produced for samples that intersected the shale aquitard unit, suggesting that Mn-containing groundwater is drawn from this geological layer. Development of a supplementary and/or emergency groundwater supply requires careful consideration of the geology, quantity, quality, and recharge in the study site. All these aspects were assessed as well as deliberation into the potential infrastructural costs involved. Through conceptualisation of the system; evidence gathered during basic monitoring; and a simple spring model, the current study aimed to explore certain management strategies and recommend potential options going forward. The hidden nature of the resource together with the heterogeneity of fracture networks creates an inevitable uncertainty surrounding the system. Proper development and management of the aquifer can only be achieved if the system is continually monitored, modelled and utilised sustainably.
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- Date Issued: 2019
A local portrait of South African counselling psychologists’ endorsement of the values and scope of practice of their profession in relation to their career satisfaction
- Authors: Ngobeni, Nhlori
- Date: 2019
- Subjects: Counseling psychology -- South Africa , Counseling psychologists -- South Africa , Psychology -- South Africa , Psychologists -- South Africa
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/94350 , vital:31038
- Description: The 2011 revision to the scope of practice of counselling psychology in South Africa has renewed debates about what is it that should distinguish counselling psychology as a distinctive area of practice and research in South Africa. This study reports the findings of a survey of a sample of 228 South African registered counselling psychologists, including the extent to which they endorse the traditional values of their category, the extent to which they endorse the current scope of practice for counselling psychology, and measures of career satisfaction. Findings are that women and white practitioners comprise the large majority of the category. Counselling psychologists strongly endorse most of the traditional values of the category and are generally highly satisfied with their careers. Surprisingly, given these findings, only a large minority indicate that they would choose counselling psychology again knowing what they know now. Most significant, the findings of a multiple regression analysis indicate that endorsement of the scope of practice most strongly predicts career satisfaction scores, followed closely by black racial identification, years of experience, and then endorsement of counselling psychology values. Logistic regression analysis to predict which counselling psychologists would choose counselling psychology again knowing what they know now, revealed that only endorsement of counselling psychology values and endorsement of the scope practice made a significant contribution to predictions. This study provides a snapshot of the current status of South African counselling psychology today and it remains that in the next ten years, there will be significant changes as the category changes across the globe.
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- Date Issued: 2019
A phenomenological study of Senior Primary school teachers’ understandings of an English Across the Curriculum approach to language teaching in Namibia
- Authors: Kambonde, Emily
- Date: 2019
- Subjects: English teachers -- Training of -- Namibia , English language -- Study and teaching (Elementary) -- Namibia
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/92381 , vital:30718
- Description: This is a phenomenological study designed to investigate English teachers’ understandings of the concept of English Across the Curriculum (EAC), and the extent to which such understandings inform their pedagogic practices at the Senior Primary phase, in a Namibian context. The study was located within the qualitative, interpretive paradigm, using a multi-method approach of semi-structured interviews, classroom observations and documentary evidence as research instruments. The participants were three English second-language teachers at a primary school in a suburban area. Findings from the study revealed that there were several understandings of EAC, and though there might have been an underlying understanding of the concept, classroom practices were incongruent with what EAC requires. It was also found that there are documents based on social constructivist and Genre Theory in the National Professional Standards for teachers, but teachers were not familiar with the content of these documents and they were not used by teachers as guiding documents on how they need to implement EAC. It is recommended that English teachers receive continuous professional development courses on language development theories and EAC, as well as specific training to implement EAC so that “every teacher can be a language teacher”.
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- Date Issued: 2019
A pilot wide-field VLBI survey of the GOODS-North field
- Authors: Akoto-Danso, Alexander
- Date: 2019
- Subjects: Radio astronomy , Very long baseline interferometry , Radio interometers , Imaging systems in astronomy , Hubble Space Telescope (Spacecraft) -- Observations
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/72296 , vital:30027
- Description: Very Long Baseline Interferometry (VLBI) has significant advantages in disentangling active galactic nuclei (AGN) from star formation, particularly at intermediate to high-redshift due to its high angular resolution and insensitivity to dust. Surveys using VLBI arrays are only just becoming practical over wide areas with numerous developments and innovations (such as multi-phase centre techniques) in observation and data analysis techniques. However, fully automated pipelines for VLBI data analysis are based on old software packages and are unable to incorporate new calibration and imaging algorithms. In this work, the researcher developed a pipeline for VLBI data analysis which integrates a recent wide-field imaging algorithm, RFI excision, and a purpose-built source finding algorithm specifically developed for the 64kx64k wide-field VLBI images. The researcher used this novel pipeline to process 6% (~ 9 arcmin2 of the total 160 arcmin2) of the data from the CANDELS GOODS- North extragalactic field at 1.6 GHz. The milli-arcsec scale images have an average rms of a ~ 10 uJy/beam. Forty four (44) candidate sources were detected, most of which are at sub-mJy flux densities, having brightness temperatures and luminosities of >5x105 K and >6x1021 W Hz-1 respectively. This work demonstrates that automated post-processing pipelines for wide-field, uniform sensitivity VLBI surveys are feasible and indeed made more efficient with new software, wide-field imaging algorithms and more purpose-built source- finders. This broadens the discovery space for future wide-field surveys with upcoming arrays such as the African VLBI Network (AVN), MeerKAT and the Square Kilometre Array (SKA).
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- Date Issued: 2019
A platform for women’s experiences? a case of the hip hop scene in Grahamstown, Eastern Cape
- Authors: Kabwato, Sasha Nyasha
- Date: 2019
- Subjects: Hip-hop -- South Africa -- Makhanda , Popular culture -- South Africa -- Makhanda , Rap musicians -- South Africa -- Makhanda , Musicians, Black -- South Africa -- Makhanda , Women musicians, Black -- South Africa -- Makhanda , Women, Black -- South Africa -- Makhanda -- Psychology
- Language: English
- Type: text , Thesis , Masters , MSocSc
- Identifier: http://hdl.handle.net/10962/96503 , vital:31287
- Description: The main aim of this research is to examine the hip hop scene in Grahamstown, Eastern Cape and whether hip hop can serve as a significant platform to discuss women’s lived experiences. This study also places focus on how female rappers construct their rap personas, as well as how they are perceived by their male counterparts. In order to understand the multifaceted viewpoints, it was necessary to interview both male and female hip hop artists. Eight interviews were conducted with eight young black rappers who are actively involved in the Grahamstown hip hop scene. It was found that hip hop, like any other art form, is a significant platform for women to express themselves, however gender constraints limit who is willing to listen to and promote their music. Male rappers advocate for women to talk about their stories, yet are more unlikely to listen because it does not relate to their struggles. In addition, there seem to be four specific tropes that female rappers choose to construct their identities from. Female rappers tend to create their personas around: Queen Mother, Fly Sista, Bitch with Attitude, and Lesbian. However, these categories are fluid and it was found that women navigate these categories depending on their audience and message they want to convey at a particular moment. Lastly, there is a split between Grahamstown West (Rhodes University) and Grahamstown East (township). University students are unlikely to perform in the township, and township residents rarely perform at organised events in Grahamstown West. In addition, Rhodes University students are more likely to feature on the university run radio station, rather than Radio Grahamstown, the local community radio.
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- Date Issued: 2019
A social capital analysis of citizen participation and service delivery in metropolitan government in Zimbabwe: the case of Glenview, Harare since 2013
- Authors: Sachikonye, Tafadzwa I
- Date: 2019
- Subjects: Social capital (Sociology) -- Zimbabwe -- Harare , Municipal services -- Zimbabwe -- Harare , Local government -- Zimbabwe -- Harare , Public administration -- Zimbabwe -- Harare , Citizen particpation -- Zimbabwe -- Harare , Local government --Citizen participation -- Zimbabwe -- Harare , Harare (Zimbabwe). City Council
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/96236 , vital:31253
- Description: Significant challenges exist in contemporary Zimbabwe with regard to urban government, including with specific reference to citizenship participation and service delivery capacities. One of the crucial factors considered in the existing literature when examining urban government is the extent to which the central government intrudes in the affairs of urban government. This is particularly important given that, in recent years, many urban governments have been controlled by the main opposition party in the country. In this context, the thesis offers a critical examination of urban government in contemporary Zimbabwe by focusing on urban government in Harare (the capital) and, even more specifically, on the high-density, low-income area of Glenview. Harare is one of two metropolitan urban areas in Zimbabwe, along with Bulawayo, and is governed by the Harare City Council. While the central state’s relationship with urban governments (including Harare) in Zimbabwe is important, and is examined in this thesis, the primary concern is how this and other factors affect citizenship participation and service delivery in Harare. In pursuing this, the thesis draws upon social capital theory (including questions around trust and networks) to facilitate a critical analysis of urban government, citizenship participation and service delivery in Harare and Glenview specifically. The fieldwork for this thesis involved a qualitative research methodology, including informal interviews with relevant local stakeholders in Harare and associated documents. The thesis concludes that localised political, social and other contextual factors in Harare undercut the prospects for meaningful citizenship participation (with forms of social exclusion existing) and that this has negative implications for effective and efficient service delivery mechanisms.
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- Date Issued: 2019
A sociological analysis of Rhodes University students’ understanding of depression
- Authors: Kadula, Tadala
- Date: 2019
- Subjects: College students -- South Africa -- Mental health , College students -- South Africa -- Mental health -- Case studies , Depression, Mental , Rhodes University -- Students -- Attitudes
- Language: English
- Type: text , Thesis , Masters , MSocSc
- Identifier: http://hdl.handle.net/10962/96258 , vital:31255
- Description: Using the theoretical framework of symbolic interactionism, this research sought to analyse and explore how Rhodes University students, both depressed and not depressed, understand depression, and how their understanding influences their interaction with people who do suffer from depression. For the purposes of this paper, eight participants were involved in an in-depth interview process. Out of the eight participants, six of them suffered from depression while the other remaining two participants had never suffered from depression, but they were close to someone who had depression. The findings of this research varied, some understood depression as a mental disturbance, others understood it as a condition that affects your emotions, and others understood it as a multifaceted condition that is highly subjective and cannot be understood using standardized measures. The participants’ personal experience and introduction into a new environment, in this context, university, changed their understanding of depression. The change in how they understood depression correlated with the change in how they interacted with depressed people.
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- Date Issued: 2019
A sociological analysis of the Rhodes University Students and staff members’ perceptions on the use of traditional medicine and biomedicine
- Authors: Mankantshu, Buncwanekazi
- Date: 2019
- Subjects: Traditional medicine -- South Africa -- Eastern Cape , Ethnopharmacology -- South Africa -- Eastern Cape , College students -- Attitudes -- South Africa -- Eastern Cape , College students -- Medical care -- South Africa -- Eastern Cape , Social medicine -- South Africa -- Eastern Cape , Rhodes University -- Students -- Attitudes , Rhodes University -- Employees -- Medical care , Rhodes University -- Employees -- Attitudes
- Language: English
- Type: text , Thesis , Masters , MSocSc
- Identifier: http://hdl.handle.net/10962/96280 , vital:31257
- Description: The primary objective of this study was to understand to the role that discourse on traditional medicine plays in the choices that Rhodes University students and staff make regarding who they consult when they are sick. A secondary objective was to explore the participants’ views on the Department of Health’s draft policy on the institutionalisation of African traditional medicine and potential collaboration with the biomedical health care system. This was a qualitative study that used in-depth interviews and questionnaires to collect data, which was interpreted using thematic data analysis. A key finding was that participants were mostly influenced by their families with regard to the health care choices – either biomedical or traditional medicine. And that affordability, accessibility and availability are not important factors in health care choices as suggested by literature. Participants also based their decisions on what they believed would help them, either biomedicine or traditional medicine.
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- Date Issued: 2019
A sociological study to explore the knowledge of Pre-Exposure Prophylaxis at Rhodes University
- Authors: Ntshinga, Throny
- Date: 2019
- Subjects: Pre-exposure prophylaxis -- South Africa , HIV infections -- Prevention -- South Africa , AIDS (Disease) -- Prevention -- South Africa , AIDS (Disease) -- Government policy -- South Africa , AIDS (Disease) -- Study and teaching -- South Africa , Health education (Higher) -- South Africa , Rhodes University -- Students -- Health and hygiene
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/96247 , vital:31254
- Description: South Africa has a very high prevalence rate of HIV infections, this is why this exploratory qualitative study examines the Rhodes University’s HIV policy and its awareness programmes, with a specific focus on Pre-Exposure Prophylaxis (PrEP). The World Health Organisation’s (2016-2017) recommendations for Pre-exposure Prophylaxis has been accepted and rolled-out nationwide by the South African Department of Health. This is to maintain the HIV-negative status of not only the general public, but specifically students at higher institutions of learning. PrEP has been integrated with other HIV prevention methods through the Higher Education and Training HIV/AIDS programme. Semi-structured in-depth interviews were conducted with five female and four male students, and six health care staff members at Rhodes University. Data was thematically analysed, and the findings show that there is a lack of knowledge of both the HIV policy and Pre-Exposure Prophylaxis among the participating students. However, the staff members are knowledgeable due to the fact that they work in health care.
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- Date Issued: 2019
A study of malicious software on the macOS operating system
- Authors: Regensberg, Mark Alan
- Date: 2019
- Subjects: Malware (Computer software) , Computer security , Computer viruses , Mac OS
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/92302 , vital:30701
- Description: Much of the published malware research begins with a common refrain: the cost, quantum and complexity of threats are increasing, and research and practice should prioritise efforts to automate and reduce times to detect and prevent malware, while improving the consistency of categories and taxonomies applied to modern malware. Existing work related to malware targeting Apple's macOS platform has not been spared this approach, although limited research has been conducted on the true nature of threats faced by users of the operating system. While macOS focused research available consistently notes an increase in macOS users, devices and ultimately in threats, an opportunity exists to understand the real nature of threats faced by macOS users and suggest potential avenues for future work. This research provides a view of the current state of macOS malware by analysing and exploring a dataset of malware detections on macOS endpoints captured over a period of eleven months by an anti-malware software vendor. The dataset is augmented with malware information provided by the widely used Virus. Total service, as well as the application of prior automated malware categorisation work, AVClass to categorise and SSDeep to cluster and report on observed data. With Windows and Android platforms frequently in the spotlight as targets for highly disruptive malware like botnets, ransomware and cryptominers, research and intuition seem to suggest the threat of malware on this increasingly popular platform should be growing and evolving accordingly. Findings suggests that the direction and nature of growth and evolution may not be entirely as clear as industry reports suggest. Adware and Potentially Unwanted Applications (PUAs) make up the vast majority of the detected threats, with remote access trojans (RATs), ransomware and cryptocurrency miners comprising a relatively small proportion of the detected malware. This provides a number of avenues for potential future work to compare and contrast with research on other platforms, as well as identification of key factors that may influence its growth in the future.
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- Date Issued: 2019
Absent parent/s: Psychological implications on children
- Authors: Magqamfana, Simnikiwe Happy
- Date: 2019
- Subjects: Single parent families -- South Africa , Father and child -- Psychological aspects -- South Africa , Father figures -- Psychological aspects , -- Children, Black -- South Africa -- Psychology , College students, Black -- South Africa -- Psychology , Child development -- South Africa
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/96886 , vital:31343
- Description: The present study intends to explore the psychological implications on the university students who grew up in households where their biological fathers are absent. Most studies associate the absence of the biological fathers with psychological challenges which, among others, include negative emotions such as anger, challenges with maintaining romantic relationships and tend to perform poorly at school. Such research on absence of fathers tends to privilege the biological father discourse in its analysis and often mentions in passing the role played by ‘other’ family members as ‘fathers’. Since during data collection participants kept on referring to the role of other family members or father figures, the study then expanded its scope of inquiry to include this phenomenon. Semi-structured face to face interviews were used to collect data from five university students and thematic analysis was used for data analysis. Psychoanalytic theory was used to specifically to understand or conceptualize the psychological implications on participants caused by the absence of the biological father. Black Social organization theory and Structural Functionalism theory were used to conceptualize the role of other family members/families or father figures in participants’ experiences and the influence of the society they grew up in. This study found that the participants accepted the role of the biological father as central in their lives and its absence resulted in psychological and economical difficulties. To cope with such difficulties, the support from other family members or other father figures was found to be significant in participants lives. Also, this study found that father absence motivates the participants to succeed to better their lives and majority of the participants regarded their grandmothers as father figures.
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- Date Issued: 2019
Access and control of biodiversity in the context of biopiracy: the case of pelargonium sidoides in the Raymond Mhlaba Local Municipality
- Authors: Doyle, Anastasia Roxane
- Date: 2019
- Subjects: Biopiracy -- South Africa , Traditional ecological knowledge -- South Africa , Plants, Cultivated -- Patents , Biodiversity -- Conservation -- South Africa , Pelargoniums -- Harvesting -- South Africa , Pelargonium sidoides -- Harvesting -- South Africa
- Language: English
- Type: text , Thesis , Masters , MSocSc
- Identifier: http://hdl.handle.net/10962/76321 , vital:30547
- Description: The purpose of this research is to explore access and control of biodiversity in the context of biopiracy with specific reference to the case of pelargonium sidoides in the Raymond Mhlaba Local Municipality. The research is informed by the increased appropriation of local biodiversity and indigenous knowledge by industry as well as global debates on promoting sustainable resource utilisation and sustainable rural livelihoods. This study adopts a two-pronged conceptual approach mainly, Marx’s Ecology and the Sustainable Rural Livelihoods Framework (SRLF). The former provides useful insights into the processes and dynamics of power asymmetries between developed and developing countries, capital accumulation, inherent displacement and the predatory nature of capitalism. Whilst the latter addresses how livelihoods are fashioned in a holistic way. As a significant starting point the South African political economy is examined through the lens of the two economies debate. This research is primarily qualitative using in-depth interviews, observations and archival research as the primary data collection techniques. Preliminary site visits were conducted to negotiate access. Key informants of the study were representatives of the core groups (interested and affected stakeholders) involved in the case of pelargonium sidoides. Specifically, participants included representatives from the Imingcangathelo Community Development Trust and the Masakhane Community Property Association, local harvesters, local community members, monitoring and enforcement environmental officers, plant breeders (cultivators), scientists, local businessmen involved in natural resource trade, academics, legal representatives and non-governmental organisations. The Rhodes University research ethical guidelines were followed accordingly. The findings of the study suggest that trade in pelargonium sidoides is influenced by a complex and dynamic interplay between the state-industry-rural elite coalitions. Moreover, that this activity is largely centralised and exclusionary. This process is depicted in the unsustainable utilisation of pelargonium sidoides and other natural resources, the dismantling of local livelihoods, exploitation of harvesters and an incoherent environmental governance structure. At the core of this unequal system of exchange is industry, which effectively functions to generate profits whilst dispossessing peripheral communities such as the Masakhane community. The study therefore, argues that in order for local communities to access the trade there needs to be a shift in this system of unequal exchange. Not only regarding beneficiation, but in building community capacity and becoming involved as critical stakeholders in the governance of resources in the study area. The study found that there are competing narratives that inform the status and sustainability of pelargonium sidoides. Furthermore, given the current trajectory of the Masakhane community’s struggle for land, access to natural resources and exclusion from decision-making regarding pelargonium sidoides, the area will continue to be underdeveloped with concomitant poverty, inequality and comprised rural livelihoods.
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- Date Issued: 2019
Acorn girl
- Authors: Kukard, Gina
- Date: 2019
- Subjects: South African fiction (English)
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/96969 , vital:31382
- Description: My thesis encapsulates a coming-of-age novella told through short vignettes of flash fiction and prose poetry. It makes use of the distillation and fragmentation of these forms to explore themes such as the nature of violation, and works between genres to engage the tension between inner and outer realities, and the blurred lines between passivity and resistance. Moving fluidly between memoir and fiction and set in modern day South Africa, it draws inspiration from both my own experiences and the writing of others, especially Raul Zurita’s resistance poetry in Dreams for Kurosawa, Claudia Rankine’s subtle absurdity in Don’t Let Me Be Lonely, bizarro elements as seen in Athena Villaverde’s The Clockwork Girl and the use of physicality to explore the emotional world, as seen in Shelley Jackson’s The Melancholy of Anatomy: Stories.
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- Date Issued: 2019
An access control model for a South African National Electronic Health Record System
- Authors: Tsegaye, Tamir Asrat
- Date: 2019
- Subjects: Medical records -- Data processing , Medical records -- Data processing -- Safety measures , Medical records -- Data processing -- South Africa , Medical records -- Data processing -- Access control , Medical informatics , Medical records -- Management -- South Africa , Health services administration -- South Africa
- Language: English
- Type: text , Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/97046 , vital:31390
- Description: Countries such as South Africa have attempted to leverage eHealth by digitising patients’ medical records with the ultimate goal of improving the delivery of healthcare. This involves the use of the Electronic Health Record (EHR) which is a longitudinal electronic record of a patient’s information. The EHR is comprised of all of the encounters that have been made at different health facilities. In the national context, the EHR is also known as a national EHR which enables the sharing of patient information between points of care. Despite this, the realisation of a national EHR system puts patients' EHRs at risk. This is because patients’ information, which was once only available at local health facilities in the form of paper-based records, can be accessed anywhere within the country as a national EHR. This results in security and privacy issues since patients’ EHRs are shared with an increasing number of parties who are geographically distributed. This study proposes an access control model that will address the security and privacy issues by providing the right level of secure access to authorised clinicians. The proposed model is based on a combination of Role-Based Access Control (RBAC) and Attribute-Based Access Control (ABAC). The study found that RBAC is the most common access control model that is used within the healthcare domain where users’ job functions are based on roles. While RBAC is not able to handle dynamic events such as emergencies, the proposed model’s use of ABAC addresses this limitation. The development of the proposed model followed the design science research paradigm and was informed by the results of the content analysis plus an expert review. The content analysis sample was retrieved by conducting a systematic literature review and the analysis of this sample resulted in 6743 tags. The proposed model was evaluated using an evaluation framework via an expert review.
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- Date Issued: 2019
An Agile systems development approach for enhancing e-Government user adoption
- Authors: Lehasa, Odifentse Mapula-e
- Date: 2019
- Subjects: Agile software development , Internet in public administration -- Developing countries
- Language: English
- Type: text , Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/94158 , vital:31010
- Description: The expansion of technological developments in all areas of society has seen governments taking advantage of new technologies to enhance public service delivery, disseminate information and promote participation by the public in government decision-making. This phenomenon is known as electronic government, or e-Government. However despite the socio-economic benefits inherent in the implementation of e-Government systems, an overwhelming number of government projects – particularly in developing countries – struggle to successfully implement e-Government systems. e-Government project failure is more pronounced in developing countries, with more than half of these projects either partially or completely failing. The failure of e-Government projects undermines government investments, as well as the potential socio-economic benefits that could be realised by the citizens. Arguably, while the failure or success of an e-Government project is attributed to a myriad of factors, low user adoption is one of the key factors that contribute to e-Government project failure. Therefore this thesis seeks to investigate the phenomenon of low e-Government user adoption and determine whether the use of an Agile system development approach can positively influence e-Government user satisfaction as well as buy-in and adoption. A Mixed-Methods, multi-case study approach was used through the perspective of Post-Positivism. The researcher examined four (4) South African e-Government projects – using an online questionnaire and in-depth interviews with members of the system development team – to determine whether the use of an Agile approach has merit in enhancing e-Government user adoption. The use of a Mixed-Methods approach allowed for data triangulation so as to verify the findings; while the use of multiple case studies enabled for cross-case analysis. The findings indicate that the use of Agile practices, as listed in the proposed Agile-informed User Engagement Guidelines, can ensure that the e-Government system developed meets user needs; and, that users are satisfied with, and make use of the e-Government system. However since most large e-Government projects make use of a traditional Waterfall development approach, it is recommended that the Agile practices (proposed guidelines) be incorporated into the structured Waterfall approach – to create a hybrid, or blended system development approach. In conclusion, the use of the proposed Agile-informed User Engagement Guidelines can enhance e-Government user adoption; and, subsequently, contribute towards nurturing the success of e-Government projects.
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- Date Issued: 2019
An analysis of barriers to employee adoption of workplace health and safety standards at Eskom, Makhanda (Grahamstown)
- Authors: Makholwane, Nobubele
- Date: 2019
- Subjects: Eskom (Firm) -- Employees -- South Africa -- Makhanda , Eskom (Firm) -- Management -- South Africa -- Makhanda , Industrial hygiene -- South Africa -- Makhanda , Employee motivation -- South Africa -- Makhanda
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/93898 , vital:30968
- Description: Workplace fatalities and injuries are a concern around the world, with over 2 million deaths because of workplace related activities. This makes safety culture in the workplace crucial to the sustainability of individuals, businesses and the society in general. Safety culture includes everything in the workplace, and is understood as common sense awareness and practice relating to safety. Central to developing a safety culture in an organization, is a good understanding of what safety problems existed in the past; what safety problems exist in the present, and what caused them, as well as what could be done to deal with those causes. The goal of this thesis, therefore, was to understand what barriers potentially exist for Eskom employees in Makhanda (Grahamstown) to understanding and adopting the company’s safety policies and measures. A secondary aim was to explore different strategies for addressing these barriers. In order to get to the goal, it was important to; first, understand which aspects of Eskom’s health and safety standards do employees have difficulty adopting. Second, it was important to investigate the specific barriers to employees’ non-adoption of health and safety standards, by understanding their perceptions of safety issues in the workplace. Third, based on the findings, the study aimed to propose recommendations for improving the adoption of safety policies and measures by employees of Eskom. The key findings of the study include the fact that car accidents are the company’s and employees major concern, but the employees also have many other concerns that they see as needing the company’s attention (e.g. dealing with attacks on employees by customers; focusing on incentives rather than harsh enforcement for violators of safety policies). However, it is also clear that most employees do see safety as their responsibility as well. The two key areas of recommendations are, first, that leadership of Eskom adopt alternative leadership styles that focus more on ethical leadership, rather than transactional leadership that focus on profit margins more than it does on people. Second, it is recommended that Eskom provide incentives for compliance with safety policies; more training and education about safety; encouragement for Eskom to not put so much pressure on employees, who can lead fatigue; rather they should employ more people to do the jobs that the high pressure. To conclude, this research argues that neither do employees not employers think death and injuries are good for anybody. This is why this researcher is hopeful that this will get better, not worse, in terms of having a firm safety culture at Eskom as a workplace environment.
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- Date Issued: 2019
An analysis of how the use of geoboards as visualisation tools can be utilised in the teaching of quadrilaterals
- Authors: Matengu, Given Kahale
- Date: 2019
- Subjects: Manipulatives (Education) , Information visualization , Visualization , Mathematics -- Study and teaching , Mathematics -- Study and teaching -- Activity programs , Geometry -- Study and teaching
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/96724 , vital:31312
- Description: The relationship between visualisation processes and using manipulatives in the teaching and learning of mathematics is apparent and yet not so vocal in the literature. This could be because of the common mistaken understanding that because manipulatives are visual in nature, then visualisation processes should be obvious. Literature warns that just because something is visual therefore it is transparent, is incorrect. This study argues that the effective use of manipulatives in the teaching of mathematics helps learners to effectively understand mathematical concepts. Research on the teaching and learning of mathematics suggests that physical manipulation experiences, especially of concrete materials concerning shapes, is an important process in learning at all ages. One such teaching tool, the Geoboard, a physical manipulative that employs visualisation processes when correctly used, is explored in this study. The aim of this interpretive case study was to investigate and analyse the use of Geoboards as a visualisation tool in the teaching of the properties of quadrilaterals. The study focused on visualisation processes and the use of Geoboards through a teaching framework that was informed by the Van Hiele phases of teaching geometry. The study was conducted in the Opuwo circuit of the Kunene region, Namibia, and it involved three selected Grade 7 mathematics teachers, each from a different primary school. It was underpinned by a constructivist theory using the Van Hiele phases of teaching geometry and framed within visualisation processes. The study employed the use of qualitative data collection techniques such as observations and interviews. The analysis of the findings of this study revealed that Geoboards were very useful in demonstrating the visual representations of the properties of quadrilaterals in a cheap and yet novel way in the selected teachers’ classes. Moreover, the use of Geoboards by the selected teachers effectively fostered visualisation processes such as concrete pictorial imagery, dynamic imagery, perceptual apprehension, sequential apprehension, discursive apprehension and operative apprehension. It was also revealed that Geoboards enabled the selected teachers to structure and teach their lessons in a well-planned manner according to the Van Hiele phases, although it was difficult for them to adhere strictly to the hierarchy of the phases.
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- Date Issued: 2019
An analysis of the possible success of a tax on sugarsweetened beverages in South Africa
- Authors: Mabaso, Bandla Sazi
- Date: 2019
- Subjects: Nutrition -- Government policy -- South Africa , Value-added tax -- South Africa , Obesity -- South Africa -- Prevention , Excise tax -- South Africa , Taxations of articles of consumption -- South Africa , Tobacco -- Taxation -- South Africa , Alcohol -- Taxation -- South Africa , Carbonated beverages -- Taxation -- South Africa
- Language: English
- Type: text , Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/68333 , vital:29240
- Description: The increase in obesity is a global crisis that is prevalent in both the developed and developing economies, including South Africa. It endangers the health and threatens the life of many people. Sugar-sweetened beverages have become the key target in the fight against obesity, in preference to other foodstuffs that contain added sugar, because of the poor nutritional value they contain and harm they cause if consumed excessively. The Minister of Finance announced in the 2016 Budget Speech, that a proposed tax on sugar-sweetened beverages would be introduced in South Africa and would be implemented in April 2017, but the anticipated date is now 1 April 2018. The thesis examined the possible success of this proposed tax in South Africa, using as a benchmark the process followed prior to implementing the tax and the experience of selected foreign countries that have implemented the tax, one country subsequently abolishing it, and another country considering implementing it. Additionally, the research analysed the success of the existing excise taxes levied on tobacco and alcohol in South Africa, in attempting to predict the possible success of the proposed tax. The success of the proposed tax is, however, threatened by the emergence of illegal markets that offer the targeted products inexpensively, particularly if similar restrictions and laws do not exist in bordering countries. The research was carried out by means of the analysis of journal articles, information from the selected countries’ revenue authorities’ websites, National Treasury publications, commentaries by experts and publications by professional organisations and firms. Overall, the proposed tax has been successful in curbing obesity and high sugar intake in other countries. Similarly, the excise taxes on tobacco and alcohol have been successful in reducing the consumption of targeted products in South Africa. These successes have been realized through a collaborated effort and employing a multi-faceted approach, including advertising restrictions. Nevertheless, the proposed tax is popularly criticised for its regressive nature and the potential job losses that are associated with it.
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- Date Issued: 2019