Holographic Bjorken Flow at Large-D

We use gauge/gravity duality to study the dynamics of strongly coupled gauge theories undergoing boost invariant expansion in an arbitrary number of space-time dimensions (D). By keeping the scale of the late-time energy density fixed, we explore the infinite-D limit and study the first few corrections to this expansion. In agreement with other studies, we find that the large-D dynamics are controlled by hydrodynamics and we use our computation to constrain the leading large-D dependence of a certain combination of transport coefficients up to 6-th order in gradients. Going beyond late time physics, we discuss how non-hydrodynamic modes appear in the large-D expansion in the form of a trans-series in D, identical to the non-perturbative contributions to the gradient expansion. We discuss the consequence of this trans-series in the non-convergence of the large-D expansion.Comment: 38 pages, 3 figures. v2: Typos corrected, references adde

Theology in the flesh: exploring the corporeal turn from a southern African perspective

Borght, E.A.J.G. Van der [Promotor]Muller, J. [Promotor

Facilitation of educators to manage their lived experiences of aggression at a Technical Vocational Education and Training (TVET) College

Abstract: Please refer to full text to view abstract.D.Phil. (Education

Forgiveness, reconciliation and justice á la Desmond Tutu

In the eyes of many, chairing the South African Truth and Reconciliation Commission (TRC) was the crowning contribution of Archbishop Desmond Tutu to his country, and to the world at large. Against the backdrop of his role leading the TRC, chairing the many victims’ hearings and guiding the amnesty proceedings, the article focuses on Tutu’s views on forgiveness, reconciliation, and justice. The TRC operated within the mandates given to it by the South African parliament, but Tutu with his theological background, strong views, and dynamic personality put his own stamp on the truth and reconciliation process inSouth Africa. The role of religion in establishing truth and working towards justice, forgiveness, and reconciliation was controversial, but for the former Anglican Archbishop of Cape Town, it was inconceivable to embark on the journey of reconciliation without faith in Jesus Christ, the ultimate Reconciler

Enabling Technologies of Cyber Crime: Why Lawyers Need to Understand It

This Article discusses the enabling technologies of cyber crime and analyzes their role in the resolution of related legal issues. It demonstrates the translation of traditional legal principles to a novel technological environment in a way that preserves their meaning and policy rationale. It concludes that lawyers who fail to understand the translation will likely pursue a suboptimal litigation strategy, face speculative recovery prospects, and may overlook effective and potentially powerful defenses

Com-post-humanism: implications for foundation phase environmental education in South Africa

In early childhood education research (which includes Grade R and Grade 1 in the Foundation Phase in South Africa), posthuman frameworks are mostly used without explicitly making the connection to issues of climate change and environmental education/sustainability education. Within the context of the Anthropocene where natural and human forces are visibly entangled, this thesis draws on posthuman frameworks combined with multidisciplinary, place-conscious environmental education theories to inform research and educational practices. These theories are not motivated by a Western ideology or take for granted that Western theorists have the answers that all cultures should live by. These environmental theories and a posthuman praxis are always relational (nature-culture, body-mind, intellect-affect), have a flat ontology where human qualities are not at the centre of relationality and they explore the perceptual, cultural, ecological, and political dimensions of land/place. These theories eschew ideas of romantic (colonial) wilderness experiences and foster wider concerns of ecojustice, ecological thought and life processes that are also relevant to everyday (South African) urban living experiences. The following ‘(in)tension’ (imagining different futures in the midst of the frictions of research) is explored: How do posthuman environmental philosophies disrupt anthropocentric thinking and inform new ways of doing theory and practice for environmental education in South African schools in the Foundation phase? During an eleven month period of practical exploration, ‘walking a world into being’ and encountering Grade R and Grade 3 lessons in a Cape Town urban government school, video recordings and intraviews provoked and disturbed all possibilities of ‘pre-knowing’. Posthuman ‘ethodologies’ were conceptualized to rework the post-human subject at the intersection of post-qualitative research and Anthropocene entanglement. The idea of methods as processes of gathering ‘data’ changed to methods as ‘abecoming-entangled-in-relations’. Methods became receptive of ethicopolitical matters and concerns as they happen. Rather than concluding with ontological certainties and ‘findings’, normative standards (a humanist curriculum and work books) are problematized and the suggestion that all education should be environmental, is offered. The thesis gestures towards a pedagogy of affective learning right across the curriculum with land, multispecies engagements and ‘storied matter’ as an affirmative and creative way to ‘stay with the trouble’

Praxis of design education to the current digital culture student

If “Design is shaped by the community and community shapes design” (DEFSA 2013 brief author), then how do we teach design to a culture that is engrossed within the ever-­‐changing information age, what is the impact of this ethos on the current day designer and design? Today’s student is inclined to have an ethos that is different to students from as short as five years ago; post 2007, the year that social media started to be commonly used by South Africans, thus changing their ethos of design and continues to change as the digital information age develops. This paper looks at a design class, on third year level, as the Design Culture described by the conference outlines; understanding the dualism at play on the design process and the class group as the community. It investigates the culture that does not hold onto information, but has access to information at the press of a button. This investigation aims to understand the nature of this constantly changing culture and the influences the information age has on the ethos of a design culture. It investigates how teaching has to adapt to serve this digital culture and how learning happens within it. The paper considers the changes to the praxis of design; process of design, the nature of creativity and the communication of design within this ethos, the challenges and potential for growth that the information ethos brings with it. It aims to contribute to the discourse surrounding praxis of design teaching to today’s constantly changing, network driven design culture. In conclusion this investigation considers the influence of the digital culture on design cultures and aims to act as a catalyst to design educators to enrich the understanding of the cultures they are involved with and aims to contribute to the praxis of teaching design to a continually changing culture on the fringes or outskirts of the educator’s own culture

Framed: COP17 on South African television

The media have a critical role to play in informing and changing public opinion on climate change, "the defining human development issue of our generation" (United Nations Development Programme for Human Development Report, 2008, 1). Developing countries are most likely to suffer the worst effects of climate change, yet few studies exist on climate change communication in the media in developing countries and in particular in Africa. Studies on climate change communication in the media focus mostly on the print media and on developed countries, yet in Africa, more people consume their news through television or radio. So far, no study has examined television news reports of a United Nations Conference of the Parties in Africa. This study examines the way four South African television news stations (three public and one private) framed climate change news over six weeks: two weeks before, during and after the 17th United Nations Conferences of the Parties in Durban (COP17) South Africa, 2011/11/07 – 2012/01/07. Coding words were used to identify climate change stories in the main newscasts on SABC 1, 2, 3 and e.tv each day. These were transcribed and in the cases of SABC1 and 2 broadcasts translated from three indigenous languages (Afrikaans, isiXhosa and isiZulu) into English. A quantitative, descriptive statistical analysis looked at the occurrence of four primary frames in these climate change stories, using binary coding questions to identify each frame. The results in the binary coding sheets were analysed by using spreadsheets. The coding questions were also used to identify and explore secondary and additional frames, which were then illustrated in graphs. Differences in framing between public and private television were also illustrated in graphs (for example local versus foreign stories, time devoted to stories, depth of stories and occurrence of climate change stories with a human angle). Secondly, a qualitative inductive analysis of text and visual material looked at links between frames (for example the link between extreme weather conditions and human action using cause and impact visuals, as well as the link between news image and source – the framing of the politician, the activist and the scientist.) This section also looked at emotionally anchoring images of hope and guilt and the role of banners, posters and maps in climate change stories on television. Though other studies claim that coverage of the summit was "almost invisible" (Finlay 2012, 16) this study shows very high coverage on especially SABC 1 (isiXhosa and isiZulu). The following hypotheses were confirmed: the political/economic frame will dominate on all stations during COP17 but the ecological frame will be highest on at least some stations in the weeks after COP17. The ethics frame will be dominated by the secondary "Inequality/Justice" frame while the "Religion" frame will be of minimal importance. When activists set the agenda, the motivational frame will hardly feature. Climate change scepticism will receive little attention on South African television. Local (South African and African) stories will be more prominent on public television than on private television