4. Electronic Theses and Dissertations (ETDs) - Faculties submissions
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Item Car Culture and Masculinity as Resources for Understanding Road Rage(University of the Witwatersrand, Johannesburg, 2024) Mabongo, Qhawekazi Khazimla; Ncube, VuyolwethuAggression on the road and aggressive driving are detrimental to other road users. Road rage may be expressed in multiple behaviours on the road such as violence, tailgating, overtaking when it is not safe to do so, and brake checking. This behaviour poses a threat to the lives of people on the road. The objective of this study was to investigate the existence of masculinity and car culture principles in the way men perceived incidents of road rage. Further, the study aimed to understand how the features of masculinity and car culture are presented in the perceptions men had of road rage. The rationale for this study was motivated by the high prevalence of road accidents, where young men were the most vulnerable to road accidents and road fatalities. Aggressive driving behaviour was the focus of this study as young men were identified as the most common culprits of performing behaviours of this nature. The study adopted a socio-cultural approach to road rage and proposed the use of socio-cultural factors, namely masculinity and car culture, as a framework for the exploration of the psychological experiences related to road rage. The data was collected using nine in-depth interviews structured around three vignettes in the form of videos. The interviews were audio recorded and transcribed. Thematic analysis principles stipulated by Braun and Clarke were utilised to guide the analysis and reporting of the data. The findings of this study were intended to inform interventions for violence and road rage by providing a nuanced understanding of the relationship between risk factors and violence as well as providing insight into the underpinning perceptions of road behaviour and, consequently, road accidents. The main findings indicated that the road is a site for social interactions that are informed by the tenets of masculinity and car culture. Both masculinity and car culture intersect and create complex social dynamics between road users. These identities influence the experience of men on the road as they are a lens for perceiving behaviour, and they also influence the behaviour of men on the road. Additionally, the research demonstrated that masculinity and car culture are related and the fundamental characteristic that underlies both concepts is power.Item Assessing how an alternative waste management system may facilitate subaltern and environmental justice: a thematic analysis of a zero waste pilot case study in South Africa(University of the Witwatersrand, Johannesburg, 2024) Van Biljon (née Swart), Johanna Yvonne (Jani)Waste is socio-political – a symbol of our economic and consumerist society. Since the Industrial Revolution, our manufacturing processes and materialist lifestyles produced more hazardous and nondegradable externalities than we were prepared to deal with. With environmental and consumer pressure building, we are at a crossroads between continuing with business-as-usual and justly transitioning over to a systemically different, zero waste society where the focus on waste management shifts to waste prevention so that, like Karl Marx, it challenges and eventually changes production processes, ownership, consumption, and ultimately, our connection with the natural environment and each other. South Africa’s waste landscape is characterised by two things: its reliance on landfills and the thousands of informal waste pickers reclaiming the value of discarded goods. So, what could a zero waste system that is just toward the environment and the subaltern look like in South Africa? In exploring this question, I considered the work of waste pickers, as well as the case of an urban composting initiative for an inner-city market supporting the zero waste philosophy. Synthesising these, I imagine a gradual, deep bottom-up transformation in attitude, behaviour and eventually infrastructure with regard to our relationship with the environment, ownership and use, as well as the revaluation of the material and therefore waste ‘management’. The role and insights of waste pickers and local, informal economies will be crucial and influential. Though South African waste pickers do not yet participate in the organic waste stream on a noticeable scale, the prioritisation of composting by the Warwick Zero Waste project and the National Waste Management Strategy sees the recovery and local, low-tech, low-cost composting of organic waste as a vital starting point in establishing a more regenerative food and waste system that will build solidItem Landscape, Rock Art Recording, Narrative: A Biography of The Harald Pager Archive(University of the Witwatersrand, Johannesburg, 2019) Moodley, Lemishka; Wintjes, JustineIn the early days of the discipline of archaeology, the archaeologist Sir Charles Thomas Newton stated, in a lecture at Oxford University in June 1880, that “the subject-matter of Archaeology is threefold – the Oral, the Written and the Monumental” (Newton 1880, p.3–7). By ‘oral’, he meant expressions of spoken language as a form of patterned communication passed down from the past, which he considered to be as significant as written texts and traces of the built environment. Newton’s statement also resonates with ongoing attempts to make sense of the fragmentary remains of the past by including living sources with links to those remains, often referred to as ‘oral traditions’. I argue that the domain of ‘oral’ could be extended in the contemporary context to refer to the realm of the ‘spoken word’. The spoken word is mobilised in the telling of personal histories of researchers engaged in making sense of the past, consistent with a move towards the study of the production of archaeological knowledge, and the broader context of the history of science. The past, and the investigation of that past, can be easily lost or erased with time, unless it is documented in some form. For as long as I can remember, I’ve had a keen interest in knowing about the world that preceded me. So naturally, movies like Raiders of the Lost Ark (1981), The Mummy (1999), Lara Croft: Tomb Raider (2001), 10 000 BC (2008), The Prince of Egypt (1998), Brother Bear (2003) and many others, fascinated and triggered my overactive imagination. These points of inspiration even prompted many crazy shenanigans and adventures that took place in my back yard. Needless to say, my mother was never impressed because her garden was in constant danger of being destroyed through micro-excavations (as I had to find the treasure I buried the previous evening!). However, it was a Pixar animated film — The Croods (2013) — that recently re-ignited my interest in deeper human history. Despite its status as a relatively mainstream commercial animated film, The Croods sparked my curiosity to find ways to visit the past and bring yesterday’s stories into our lives today. After their cave collapses, the first Crood family has to undertake a journey to find a new home. The father, provider and leader of his pack, recounts multiple stories that urge and caution his children to follow the rules described on the cave wall and to not try anything “new”, or generally be curious for that matter. He sees newness as dangerous, with potentially serious repercussions like death. He prefers for them to dwell in the “safe” compounds of the cave in which they live. He develops “cautionary” narratives through visual means by drawing pictures on the cave walls using pigment and dirt he scoops off the ground. The animated film highlights the ways in which a pictorial expression in the form of rock markings could be enlivened in its original context of performance and story-telling, and, also, the ways in which history is forged through personal experience. The film also prompted me to reconsider the academic realm in which rock art is primarily situated in southern Africa, which is archaeology, and the possible perspectives that other disciplines could bring to bear on these materials, such as art history. My understanding of the reasons why rock art (and its copies) can and should also be considered and studied as an art form, ultimately stems from my own experience in art education. The rock art works made by the San people are encoded with “the history and culture of a society” that is “thousands of years old” and “a testament of the displaced ancient African culture and the San presence in the world” (Solomon 2005). By studying these traces as artworks, researchers, historians and archaeologists are reminded to look at the visual features, but also beyond the physical aspects of the work. They begin to consider the processes that contributed to its making, and the various interpretations and meanings that the work had in its context of production, as well as in its subsequent readings. An examination of the process of knowledge production not only draws attention to the development of artmaking and the manner in which different materials were used to create artworks, but also demonstrates the precarious nature of the meaning of rupestrian imagery. An example of this instability of meaning is evidenced by a body of oral histories relevant to the San context, starting with Joseph Orpen’s documentation (1874) of a mountain Bushman called Qing’s account of the meaning behind particular rock art panels. Thereafter, in 1911, Wilhelm Bleek and Lucy Lloyd produced Specimens of Bushmen Folklore, a book of 87 recorded legends, myths and other traditional stories of the |Xam Bushmen in their now-extinct language (Solomon 2005). These resources integrated the “spoken word” with Bushman ethnographic research and laid the foundation for how we read and write about the art today, and they also provide numerous different ways into the question of interpretation. I have utilised my previous first-hand experience as an intern at the Origins Centre, where Simone Opperman and myself worked under the guidance of Steven Sack and Lara Mallen. In working towards the exhibition titled, The Origins of Walter Battiss: “Another Curious Palimpsest”, we worked closely with the Rock Art Research Institute (RARI), and my interest in rock art and its archive grew immensely. Here, I learned of the Harald Pager archive, which is physically located at RARI. After speaking to my supervisor, Dr Justine Wintjes, and listening to the way in which she briefly recounted the story of Harald Pager, who was an active rock art recorder and researcher during the 1960s and 1970s, I wanted to learn more about the man who seemingly died for his craft. Wintjes mentioned that Pager recorded San rock art in the Drakensberg area along with his wife for many years. The Pagers relied heavily on their personal resources in order to keep the recording and documentation process going, and ended up incurring financial debt. Harald Pager was passionate about archaeology and sought to understand the rock paintings he discovered in his travels across the region, which also included what was then South West Africa (now Namibia). In one of the conversations held in the course of my Masters research, Neil Lee explained that Pager dwelled for months on end in a shelter in order to finish the copies of rock paintings he sought to record. Pager’s adamance and determination, and even his belief that he could change his metabolism, apparently led to ill health while recording rock art in the Brandberg in 1985. He died a short time later in Windhoek (Neil Lee 2018, pers. comm.). 7 Given the scale and meticulousness of Pager’s archive, and in light of the conversations I had about him, it seemed strange that his work and story are engaged with so seldom within academia. Nevertheless, Pager’s vast archive lives on in the storerooms of RARI, and now also in the digital world. His recordings were recently digitised during the course of the South African Rock Art Digital Archive (SARADA) project, which sought to scan and make more accessible the content related to southern African rock art at RARI and other institutional and private archives. With the rapid rate at which technology is developing and progressing, physical archives are being turned into digital databases, while also being supplemented by newly created digital materials. However, like all archives, digital archives are not ‘permanent’. They have their own kind of media-specific fragility. The digital archive also has the potential to become obsolete and demonstrates a different kind of limited lifespan. Although digital files are also not physically present in the same way that a physical copy or photograph is, and “lose” a particular kind of materiality and stability, they gain a virtual presence and potentially greater accessibility. As with the ‘original’ archive of rock art that exists in the landscape, the traditional paper archive and the digital archive represent different kinds of longevity and fragility, and have a complex relationship with each other. While being subject to changes and deteriorations of various kinds, the archive is important as a record of archaeological materials in the landscape, but is also a site where knowledge is produced, and the practice of science is conducted. Thus, I set out to devise a project that would address some of these interests and problems, to find connections between the present and the past, and to focus on ‘process’ across the rock art archive in the broad sense of the term. I also wanted my project to address absences and silences within the archive, embedded within the documents and copies as well as the rock art itself. I approached the archive as a layered domain that extends beyond the strictly ‘documentary’ archive, and adopted a ‘personal histories’ approach as a way of forging connections across that archive. I explain this working strategy in more detail in the ‘Methodology’ section below, but first I explore some of the conceptual elements that frame the project.Item Water Grabbing?: Water Struggles over the Water Regulation of the Water Use Licenses of Coal Mines in Delmas, South Africa(University of the Witwatersrand, Johannesburg, 2024) Loate, Lesego Lester; Wafer, AlexIn various international contexts, attention has been given to the impact of the water use of extractives on water bodies. Some of these discussions are on the role of water regulation of the water use of extractives in the impacts on water bodies contributing to water scarcity for other water users and thus extractives based water struggles. Literature teases out the dynamics of the regulation of the water use of extractives through the three elements of water struggle that mirror elements of water regulation. These discussions focus on the allocation of water rights, the diverse forms of (non)recognition of water users in regulatory rules and participation in regulatory processes and exercise of rules. This study contributes to this literature focusing on coal mining water struggles in Delmas, South Africa. Despite an extensive history in mining, a leading country in coal reserves, as well as a country often touted as water scarce; research in South Africa on extractives based water struggles, in general, and coal mining water struggles in particular is limited. This study uses a case study approach using three coal mines in Delmas to address this gap in discourse. The study is based on interview and focus group data from key informations. The thesis focuses on the role of water regulation in the water problem behind coal mining based water struggles. The study also interrogates the mechanisms water regulation’s in6luence on the water problem behind coal mining based water struggles in Delmas. This study 6inds unfair and unequal regulatory practices in allocation enabling extra-legal water use by coal mines and the failure to enforce the water use of coal mines. Water regulation inequitably bene6its coal mines whilst burdening agricultural water users with pollution. Thus the study argues the water regulation is central to the resultant normalisation of the potential of future water scarcity. Water regulation exposes agricultural water users to structural and future reality. The (dys)function of water regulation of coal mines is the outcome of coal-centric socionatural relations of water that facilitate the water use of coal mines and normalise water scarcity.Item Problematising teenage pregnancy as a human rights issue in South Africa(University of the Witwatersrand, Johannesburg, 2023) Maluleke, Light; Chenwi, LilianTeenage pregnancy has long been considered a public health and a socio-economic problem globally, and South Africa in particular. A review of literature indicates that teenage pregnancy poses serious breaches to human rights. Consequently, the research report has determined that rights such as right to health, education, equality and life are at the core of teenage pregnancy. The indivisibility, interdependence, and interrelatedness of these rights become apparent once established that teenage pregnancy affects multiple rights. Against this background, this study problematises teenage pregnancy as a human rights issue in South Africa. The study seeks to answer the following questions: What are the effects of teenage pregnancy on the human rights of pregnant girls and teenage mothers? What are the domestic and international human rights law obligations of South Africa in the context of teenage pregnant? What measures have the SA government put in place to comply with its obligations and reduce high rate of teenage pregnancy in the country? Drawing from literature, case law and general comments/ recommendations and concluding observations of United Nations (UN) treaty bodies, such as the Committee on the Elimination of Discrimination against Women, Committee on Economic, Social and Cultural Rights, Human Rights Committee, and Committee on the Rights of the Child, as well as the regional treaty bodies like the African Commission on Human and Peoples' Rights, and the African Committee of Experts on the Rights and Welfare of the Child, the study found disparities and practical barriers which hampered teenagers from enjoying and accessing sexual and reproductive health information and services, including family planning; knowledge about and use of modern forms of contraception; termination of pregnancy services, antenatal and postnatal care. It also found high incidence of teenage pregnancy was the leading cause of high school dropout rates among girls in the country. Notwithstanding South Africa’s progressive legislation and policy measures, effective implementation of both national and international human rights law standards on teenage pregnancy in South Africa remains a challenge. The South African government should strive towards eliminating all practical and social barriers which prevent girls and teenage mothers’ from access to sexual and reproductive health services. To tackle the disparities and shortages of health care workers, government must hire and train more qualified people, and adopt proper budgetary measures to ensure availability, accessibility and acceptability of resources and services, to strengthen the capacity of the public health care systemItem Rights of Rivers in South Africa: is transformative adjudication up to the task?(University of the Witwatersrand, Johannesburg, 2024) Ansermino, Amanda; Tracy-Lynn FieldFreshwater is a valuable and scarce natural resource, whose ongoing degradation threatens not only rivers, wetlands and aquifers themselves, but also their surrounding ecosystems, Earth’s essential biodiversity, and the ability of humans and nature to co-exist and thrive. Society’s prevailing value system measures water’s worth to the extent that it benefits people. But this anthropocentric approach is failing to engender behaviour that is necessary to stem catastrophic biodiversity loss and the concomitant threat to human wellbeing. Rights of Nature is emerging as a paradigm rooted in an alternative ethic of respect and justice for all Earth’s subjects. Rights of Rivers is a branch of the Rights of Nature that has been a catalyst in confirming the intrinsic value of thriving riverine ecosystems. Recent river rights cases in developing countries have set the stage for changing legal norms: Courts in Columbia, India and Bangladesh have played a transformative role in pursuing social as well as environmental justice through acknowledging Rights of Rivers and espousing an eco-centric theory of value. In South Africa, the Constitution envisages radical change to a society based on equity and dignity, but but courts have been slow to acknowledge the intersection of environmental, socio-economic and political rights. This paper argues that adjudication must contribute to the transformative constitutional project by adopting a progressive stance: both jurisprudentially, in following a method of value-based, substantive, contextual reasoning; as well as politically, in recognising eco-centric principles of interspecies equity, justice and interdependence. The shortcomings of a narrow judicial perspective are discussed via the Mabola water-use license judgment. The paper offers an alternative judgment, grounded on an interdependent, egalitarian human-nature relationshipItem Assessing the effectiveness of wetlands in the Krugersdorp Game Reserve in attenuating pollution from mines on the West Rand, South Africa(University of the Witwatersrand, Johannesburg, 2023) Sawuka, Noluthando Thulisile; Evans, Mary; Masindi KhulisoIn South Africa, 48% of the country’s wetlands are critically endangered because of anthropogenic activities. Wetlands are an important part of the landscape and play a critical role including but not limited to improving water quality, habitat provision, and water storage. This research aimed to assess the effectiveness of wetland systemsin attenuating pollution from water discharged from abandoned gold mines in the Krugersdorp Game Reserve (KGR), West Rand. Eight (8) water samples were collected in the study site. Physico-chemical parameters were measured in situ, and chemical parameters were measured in the lab. The measured physico–chemical parameters from the majority of the sampled wetlands exceeded at least one of the stipulated water quality legislations, which included the General Authorization Limit Section 21f and h, 2013; Unit for TWQGR; Mine Health and Safety Act; and WUL wastewater in terms of the recorded pH, total dissolved solids, and salinity variables. Overall, a decreasing trend in pH level was observed from wetlands sampled upstream of the KGR to wetlands sampled downstream of the KGR, with the highest recorded pH level (Alkalinity: 8.9) obtained from the sampled wetland that was closest to the adjacent mining site upstream of theKGR whilst the lowest recorded pH level (Acidity: 3.9) obtained from a wetland sampling point that was further from the adjoining mine and downstream in the KGR. A weak and positive correlation (r=0.040) was obtained between the measured total dissolved solids and pH levels from the sampled wetlands, indicating minimal spatial variability. However, a strong positive correlation (r=0.999, Correlation is significant at the 0.01 level) was obtained between the measured total dissolved solids and salinity from the sampled wetlands. At least one of the limits stipulated by the water quality legislation was exceeded in terms of the analysed inorganic constituents from the sampled wetlands. The dominant ions recorded in the wetlands in increasing order are F, K, Cl, Mg, Na, Ca, and SO4. Mn and Si were the dominant metal concentrations recorded in most wetlands, with the former also showing exceedances when compared to the stipulated water quality guidelines. The recorded data from the measured physico–chemical parameters and analysed chemical variables indicated poor water quality in wetlands sampled downstream of the KGR and upstream of the KGR. Stringent measures in water quality monitoring need to be implemented to mitigate the environmental impacts associated with wastewater discharge into the receiving environment.Item The Equidae from Gladysvale, a Hominin locality in the Cradle of Humankind, South Africa(University of the Witwatersrand, Johannesburg, 2023-10) Van der Merwe, Daniel Jean; Badenhorst, ShawThe later Pleistocene compared to modern census data indicated that Equidae are represented lower than comparably sized bovids (BOV III & IV). The reason for this may be due to numerous factors that have been previously investigated such as, landscape usage, carnivore and prey relationships and accumulation factors. However, a largely unexplored factor that may also have played a vital role in their lower representation may have been the difference and effectiveness of predator avoidance behaviours utilized by Equidae. The Equidae remains from the external and internal deposits of Gladysvale (730 to 580 Kya and 257 to 195 Kya) in the Cradle of Humankind, may provide insight into the predatory avoidance behaviours of two different Equidae species, Equus capensis and Equus quagga. This study aimed to create and renew an understanding of the role of these animals within larger faunal communities in the Cradle of Humankind. Equidae fossil material mostly from Gladysvale along with supporting material from Sterkfontein, Kromdraai and Coopers were examined, measured and photographed, in an attempt to broaden the understanding of Equidae relations within the Cradle of Humankind. Furthermore, to also elaborate on the potential differences between Equus capensis and Equus quagga. Past research has usually assigned Equus capensis to the larger version of Equus quagga during the later Pleistocene, with other studies based on DNA analysis suggesting the two species have very little intraspecific diversity. However as seen in this study it would appear that there is a notable difference in size between the two Equidae species, but also a difference in overall representation within the Cradle of Humankind. This could imply that not only are the two species different in size but that they also employed different predatory avoidance behaviours.Item Interfacial engineering of NbSe2 and TaSe2 to enhance their electrocatalytic activity for hydrogen production(University of the Witwatersrand, Johannesburg, 2023-07) Kolokoto, Tshwarela; Moloto, NosiphoThere has been a need to replace fossil fuels, develop sustainable energy systems, and alleviate the negative environmental effects. These effects can be alleviated by developing efficient processes such as water-splitting, which can produce hydrogen gas in an environmentally friendly manner and, in turn, use it as a clean fuel. However, this process requires an effective electrocatalyst comparable to Pt and cost-effective. Herein, we demonstrate that the electrocatalytic activity of NbSe2 and TaSe2 can be improved by metal inclusion using interfacial engineering for the hydrogen evolution reaction (HER). The readily synthesised NbSe2 was decorated with 20% wt. Ni, 20% wt. Pt, 10% wt. Pt / 10% wt. Ni using two synthetic methods, namely the ex-situ and in-situ methods. The ex-situ samples had higher HER activities than the in-situ samples. Pt/PtO2-NbSe2 (derived from Pt decorated NbSe2 using the ex-situ method) showed a significantly enhanced HER activity compared to bare NbSe2. The Pt/PtO2-NbSe2 nanomaterial had the lowest overpotential, favourable kinetics and durability in an alkaline solution of 0.1 M KOH. The trend was as follows: Pt/PtO2-NbSe2 (Pt-decorated ex situ) > PtO-NbSe2 (Pt-decorated in-situ) > PtO/NiO-NbSe2 (Pt/Ni-decorated) > Ni/NiO-NbSe2 (Ni-decorated ex-situ) > Ni0.5Se/Ni(OH)2-NbSe2 (Ni-decorated in-situ) > NbSe2. In addition, NbSe2 was further decorated with 20% wt. Co using both the ex-situ and in-situ synthetic methods, and 10% wt. Pt / 10% wt. Co using the in-situ method. The ex-situ sample resulted in a higher HER activity compared to the in-situ samples. In particular, Co/Co3O4-NbSe2 nanomaterial (Co-decorated ex-situ) had the lowest overpotential, favourable kinetics and durability in an alkaline solution of 0.1 M KOH. The resultant trend was as follows: Co/Co3O4-NbSe2 (Co-decorated ex-situ) < Co3O4/CoSe2/PtO/PtO2-NbSe2 (Pt/Co-decorated in-situ) < Co3O4/CoSe2-NbSe2 (Co-decorated in-situ) < NbSe2. Consequently, the ex-situ method was the optimum synthetic method for forming NbSe2-based nanomaterials. TaSe2-based nanomaterials were formed similarly. TaSe2-based hybrids were formed by decorating TaSe2 with 20% wt. Ni, Co and Pt using the ex-situ method. The hybrid nanomaterials resulted in higher HER activities compared to pristine TaSe2 (i.e. Pt/PtO/PtO2-TaSe2 (Pt-decorated) > Ni/Ni(OH)2-TaSe2 (Ni-decorated) > Co/Co3O4-TaSe2 (Co-decorated) > TaSe2). Pt/PtO/PtO2-TaSe2 hybrid, in particular, resulted in the lowest overpotential under alkaline solutions (0.1 M KOH). Generally observed, was NbSe2-based electrocatalysts were better than TaSe2-based catalysts. In addition, the Pt-decorated ex-situ NbSe2 and Pt-decorated TaSe2 electrocatalysts were better than the model Pt/C catalyst, with the prior being the best overall. This is attributed to the basal sites of the NbSe2 and TaSe2. The ex-situ method was better than the in-situ method and this was due to the presence of metallic particles and the minimization of oxidation compared to the latter.Item Home range establishment of translocated African elephants (Loxodonta africana) in a savanna environment(University of the Witwatersrand, Johannesburg, 2023-09) Ngorima, Patmore; Parrini, Francesca; Boyers, Melinda; Mariotti, ElenaData from nine female African elephants translocated to Hurungwe Safari Area that had been collared was used to estimate home range patterns. Monthly home ranges for each elephant were estimated using the 50% and 95% Kernel Density Estimates (KDEs) method for a period of 20 months following translocation. At the population level, a linear regression model was used to test for the effect of months from release on the home range patterns. The findings revealed that the 95% home range of the elephants increased over time, while the 50% home range decreased since their initial release. I went further to compare the individual differences using the generalised additive model. The results showed some individual differences in patterns of exploration, with some displaying more linear home range patterns than others. Over and above, a considerably positive and relevant relationship between time and variation in the extent of the home range was observed.