Investigating household energy conservation behaviours in Johannesburg, South Africa
- Authors: Williams, Stephanie
- Date: 2019
- Subjects: Environmental behavior -- South Africa , Energy conservation -- Psychological aspects -- South Africa , Energy consumption -- Psychological aspects -- South Africa , South Africans -- Energy consumption
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/94101 , vital:31000
- Description: Behavioural change is increasingly anticipated as an important pathway towards the reduction of the human footprint on the environment. Monitoring resource consumption at the household scale is essential as a basis for evaluating current performance and supports the understanding of how behaviour change interventions can be implemented. Yet, there are comparatively fewer studies on pro-environmental behaviour (PEB) in developing country contexts than in developed countries. Further, where research efforts have been made in developing countries, these have mainly focussed on low-income households. This means the extant literature on PEB is limited across a geographic and economic gradient, making generalisations about PEB problematic and limiting the scope for thinking about interventions for promoting pro-environmental behaviour in developing countries. In response to this, the study focuses on high-income households in Johannesburg, South Africa. Overall, the findings show a high level of heterogeneity in reported pro-environmental energy use behaviour, attributed to a suit of socio-demographic and value factors. Mainly, age, number of dependents, household size. Valuing leisure time were negatively correlated to energy use behaviours, while valuing environmental quality positively correlated to energy use behaviours. The provision of information energy-saving interventions yielded positive behavioural change as shown by reduced energy consumption of up to 12% in the Treatment group. However, no significant correlations were found between energy reduction and socio-demographic and personal value factors, which can be attributed to a different cultural context. The study discusses the implications of the findings on debates around pro-environmental behaviour and factors influencing pro-environmental behaviour, and provides further recommendations for future energy policies related to the household sector.
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- Date Issued: 2019
Statistical study of traveling ionospheric disturbances over South Africa
- Authors: Mahlangu, Daniel Fiso
- Date: 2019
- Subjects: Ionosphere -- Research , Sudden ionospheric disturbances , Gravity waves , Magnetic storms
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/76387 , vital:30556
- Description: This thesis provides a statistical analysis of traveling ionospheric disturbances (TIDs) in South Africa. The velocities of the TIDs were determined from total electron content (TEC) maps using particle image velocimetry (PIV). The periods were determined using Morlet function in wavelet analysis. The TIDs were grouped into four categories: daytime, twilight, nighttime TIDs, and those TIDs that occurred during magnetic storms. It was found that daytime medium scale TIDs (MSTIDs) propagated equatorward in all seasons (summer, autumn, winter, and spring), with velocities of about 114 to 213 m/s. Their maximum occurrence was in winter between 15:00 and 16:00 LT. The daytime large scale (TIDs) LSTIDs propagated equatorward with velocities of approximately 455 to 767 m/s. Their highest occurrence was in summer, between 12:00-13:00 LT. Most of the these TIDs (about 78%) were observed during the passing of the morning solar terminator. This implied that the morning terminator was more effective in instigating TIDs. Only a few nighttime TIDs were observed and therefore their behavior could not be statistically inferred. The TIDs that occurred during magnetically disturbed conditions propagated equatorward. This indicated that their source mechanism was atmospheric gravity waves generated at the onset of geomagnetic storms.
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- Date Issued: 2019
‘Jujutech’: exploring cultural and epistemological hybridity in African science fiction
- Authors: Stier, Jordan Daniel
- Date: 2019
- Subjects: Science fiction, African -- History and criticism , Tutuola, Amos. The palm-wine drunkard , Mkize, Loyiso, 1987- .Kwezi , Black Panther (Comic book) , Dila, Dilman, 1977-. A killing in the sun , Superheroes, Black , Mbvundula, Ekari. Montague's last
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/96908 , vital:31346
- Description: This thesis aims to respond to the rise in the production of science fiction in Africa over the last decade, and to show how what I describe as the juju orientation of many of these works does not disqualify them from the genre of science fiction. Rather, I advocate for the recognition of juju ontologies as genuine sources of knowledge about the world, which have been overlooked by the globally dominant scientism that has informed science fiction theorisation to date. In my introduction I outline the theoretical frameworks of juju, science fiction and epistemology with which the thesis is in communication. In my second chapter I re-read Amos Tutuola’s novel The Palm-Wine Drinkard, showing the inherently science fictional structure of the juju-based storytelling that characterises colonial and pre-colonial African literature, as well as the essentiality of science fictional modes to Tutuola’s own prose. My third chapter considers Ian MacDonald’s theorisation of a jujutech aesthetic in African science fiction, wherein the speculations of the genres are rooted in both technoscientific and juju ontologies simultaneously. I account for the role this literary aesthetic plays in Ekari Mbvundula’s “Montague’s Last” to blur the divisions of worldly knowledge enforced by global epistemological inequalities, before showing how Dilman Dila’s A Killing in the Sun presents a critically frontier African epistemology in literary practice, and the value thereof. My fourth chapter considers the role of popular culture and consumption, and how the global literary industry resists juju-based texts. I conclude that juju-based nova and the jujutech aesthetic are not only essentially science fictional literary modes, but important players in science fiction’s role in being epistemologically productive in the future.
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- Date Issued: 2019