The International Linear Collider (ILC), a high precision electron-positron machine with centre of mass energy extending up to the TeV scale, is curently being proposed and designed. With unprecedented small beam size and high intensity the ILC aims at luminosities of the order of $10^(34)$~cm$^(-2)$s$^(-1)$. Careful monitoring of the beam parameters that affect the luminosity will be mandatory if these ambitious goals are to be achieved.<br /><br />One of the key parameters is beam emittance, the optimisation of which requires beam size monitors with micron resolution.<br />With this aim, a non-invasive laser-wire monitor prototype was designed, installed and run at the PETRA ring. Prior to its installation, background simulations and measurements were performed to verify that they would be low enough to allow<br /> the laser-wire programme to proceed. A lead-tungstate crystal calorimeter for the laser-wire was commissioned, including a study of temperature dependance, geometrical acceptance and energy response. The first laser-wire measurements of the PETRA positron beam size were then performed. The system, calibration and results are reported here.<br /><br />At the ILC, beam energy spread and beamstrahlung effects modify the luminosity spectrum. Determination of these effects is crucial in order to extract precision physics from threshold scans. In order to provide a run-time diagnostic scheme to address this, a fast luminosity spectrum measurement technique employing forward calorimetry and statistical unfolding was devised, using the Bhabha process at low angles. The scheme is described and first results are presented.

<p>The present dissertation is a translation and analysis of the chapter on <i>anumāna</i> in Vallabha’s <i>Nyāyalīlāvatī,</i> based on certain theoretical considerations on cross-cultural translation and the understanding of tradition. Adopting a non-essentialized and non-historicist conceptualization of the Nyāya-Vaiśeṣika/Navya-nyāya tradition, the work focuses on a reading of the <i>anumāna</i> chapter that is particularized and individualized. It further argues for a plurality of interpretative stances within the academic field of Nyāya-Vaiśeṣika/Navya-nyāya studies, on the grounds that the dominant stance has narrowed the scope of research. With reference to post-colonial theory, this dominant stance is understood in terms of a certain strategy called “mimetic translation”.</p><p>The study of the <i>anumāna</i> chapter consists of three main interpretational sections: translation, comments, and analysis. The translation and comments focus on understanding issues internal to the <i>Nyāyalīlāvatī. </i>The analysis focuses on a contextual interpretation insofar as the text is understood through reading other texts within the Nyāya-Vaiśeṣika/Navya-nyāya discourse. The analysis is further grounded in a concept of intertextuality in that it identifies themes, examples, and arguments appearing in other texts within the discourse. The analysis also identifies and discusses Cārvāka and Mīmāṁsaka arguments within the <i>anumāna</i> chapter.</p><p>Two important themes are discerned in the interpretation of the <i>anumāna</i> chapter: first, a differentiation between the apprehension of <i>vyāpti</i> and the warranting of this relation so as to make the apprehension suitable for a process of knowledge; second, that the sequential arrangement of the subject matter of the sections within the chapter, <i>vyāptigraha</i>, <i>upādhi</i>, <i>tarka</i>, and <i>parāmar</i>śa, reflects the process of coming to inferential knowledge.</p><p>The present work is a contribution to the understanding of the post-Udayana and pre-Gaṅgeśa Nyāya-Vaiśeṣika/Navya-nyāya discourse on inferential knowledge and it is written in the hope of provoking more research on that particular period and discourse in the history of Indian philosophies.</p>

The present dissertation is a translation and analysis of the chapter on anumāna in Vallabha’s Nyāyalīlāvatī, based on certain theoretical considerations on cross-cultural translation and the understanding of tradition. Adopting a non-essentialized and non-historicist conceptualization of the Nyāya-Vaiśeṣika/Navya-nyāya tradition, the work focuses on a reading of the anumāna chapter that is particularized and individualized. It further argues for a plurality of interpretative stances within the academic field of Nyāya-Vaiśeṣika/Navya-nyāya studies, on the grounds that the dominant stance has narrowed the scope of research. With reference to post-colonial theory, this dominant stance is understood in terms of a certain strategy called “mimetic translation”. The study of the anumāna chapter consists of three main interpretational sections: translation, comments, and analysis. The translation and comments focus on understanding issues internal to the Nyāyalīlāvatī. The analysis focuses on a contextual interpretation insofar as the text is understood through reading other texts within the Nyāya-Vaiśeṣika/Navya-nyāya discourse. The analysis is further grounded in a concept of intertextuality in that it identifies themes, examples, and arguments appearing in other texts within the discourse. The analysis also identifies and discusses Cārvāka and Mīmāṁsaka arguments within the anumāna chapter. Two important themes are discerned in the interpretation of the anumāna chapter: first, a differentiation between the apprehension of vyāpti and the warranting of this relation so as to make the apprehension suitable for a process of knowledge; second, that the sequential arrangement of the subject matter of the sections within the chapter, vyāptigraha, upādhi, tarka, and parāmarśa, reflects the process of coming to inferential knowledge. The present work is a contribution to the understanding of the post-Udayana and pre-Gaṅgeśa Nyāya-Vaiśeṣika/Navya-nyāya discourse on inferential knowledge and it is written in the hope of provoking more research on that particular period and discourse in the history of Indian philosophies.

Concluding on this note, the thesis argues that reading The Lord of the Rings in this way renders postcolonial concepts accessible to a whole generation of readers already familiar with the series, and points to the possibility of examining other contemporary texts, or even further analysis of Tolkien's to reveal more postcolonial sensitivities engendered in the texts.; This thesis examines J.R.R. Tolkien's texts The Hobbit, The Fellowship of the Ring, The Two Towers, and The Return of the King from a postcolonial literary perspective. By examining how these texts, written at the decline of the British Empire, engage with the theoretical polemics of imperialism, this thesis takes a new look at these popular and widely regarded books from a stance of serious academic interest. The first chapter examines how certain characters, who are Othered temporally in the realm of Middle-earth, manage to find a place of narrative centrality from the defamiliarized view of Merry, Pippin, Samwise, and Frodo, uncannily reoccurring throughout the narrative in increasingly disturbing manifestations. From there, the thesis moves on to uncanny places, examining in detail Mirkwood, Moria, Dunharrow, and the Shire at the end of The Return of the King. Each of these locations in Middle-earth helps Tolkien to explore the relationship between colonizer, colonized, and fetishism; the colonizer(s) disavow their own fears of these places by fetishizing the pathways they colonize for their safe passage. Since their paths are unsustainable colonially, these fetishes cannot fulfill their function, as the places are marked with unavoidable reminders of wildness and uncontrollability which cannot successfully be repressed for long. Ending this chapter with a discussion of the hobbit's return to the Shire, the argument moves into the next chapter that discusses the small-scale colonization that takes place in the heart of Frodo himself, making the Shire he used to know firmly unavailable to him. The Ring, in this case, is the colonizer, doubling, fracturing, and displacing Frodo's selfhood so that he becomes unfamiliar to himself. The uncanniness that this produces and Frodo's inability to heal from his experience with the Ring, this thesis argues, echoes the postcolonial themes of irreconcilability and the fantasy of origin.

This study examines the functions of objects in a selection of British colonial travel accounts about Africa. The works discussed were published between 1863 and 1908 and include travelogues by John Hanning Speke, Verney Lovett Cameron, Henry Morton Stanley, Mary Henrietta Kingsley, Ewart Scott Grogan, Mary Hall and Constance Larymore. The author argues that objects are deeply involved in the construction of pre-modern and modern spheres that the travelling subject moves between. The objects in the travel accounts are studied in relation to a contextual background of Victorian commodity and object culture, epitomised by the 1851 Great Exhibition and the birth of the modern anthropological museum. The four analysis chapters investigate the roles of objects in ethnographical and geographical writing, in ideological discussions about the transformative powers of colonial trade, and in narratives about the arrival of the book in the colonial periphery. As the analysis shows, however, objects tend not to behave as they are expected to do. Instead of marking temporal differences, descriptions of objects are typically unstable and riddled with contradictions and foreground the ambivalence that characterises colonial literature.

This thesis seeks to interpret the cinematic representations of Hong Kongers’ identity quest during a transitional state/stage related to the sovereignty transfer. The Handover transition considered is an ideological one, rather than the overnight polity change on the Handover day. This research approaches contemporary Hong Kong cinema on two fronts and the thesis is structured accordingly: Upon an initial review of the existing Hong Kong film scholarship in the Introduction, and its 1997-related allegorical readings, Part I sees new angles (previously undeveloped or underdeveloped) for researching Hong Kong films made during 1982-2002. Arguments are built along the ideas of Hong Kongers’ situational, diasporic consciousness, and transformed ‘Chineseness’ because Hong Kong has lacked a cultural/national centrality. This part of research is informed by the ideas of Jacques Derrida, Homi Bhabha and Stuart Hall, and the diasporic experiences of Ien Ang, Rey Chow and Ackbar Abbas. With these new research angles and references to the circumstances, Part II reads critically the text of eight Hong Kong films made during the Handover transition. In chronological order, they are Boat People (Hui, 1982), Song of the Exile (Hui, 1990), Days of Being Wild (Wong, 1990), Happy Together (Wong, 1997), Made in Hong Kong (Chan, 1997), Ordinary Heroes (Hui, 1999), Durian Durian (Chan, 2000), and Hollywood Hong Kong (Chan, 2002). They meet several criteria related to the undeveloped / underdeveloped areas in the existing Hong Kong film scholarship. Hamid Naficy’s ‘accented cinema’ paradigm gives the guidelines to the film analysis in Part II. This part shows that Hong Kongers’ self-transformation during transition is alterable, indeterminate, and interminable, due to the people’s situational, diasporic consciousness, and transformed ‘Chineseness’. This thesis thus contributes to Hong Kong cinema scholarship in interpreting films with new research angles, and generating new insights into this cinematic tradition and its wider context.

This study and the accompanying design project explore postmodern identity construction as a nomadic state of being in relation to the shared experience of space. The potential of the relationship between postmodern identity and physical space is explored both theoretically and through practical application. The main theory explored is ‘third space’, with specific reference to the concept of ‘thirdness’ as articulated by American psychoanalyst Jessica Benjamin (in Frosh&Baraitser 2009). This study examines how shared spaces can, through narrative reframed by ontology (Somers 1994), be seen as physical manifestations of the ‘third space’ as envisaged by the likes of Homi K Bhabha (1994) and Edward Soja (1996). The notion of ‘thirdness’ is used to explore the relationship between individuals and shared space. ‘Thirdness’ is also paralleled to Ubuntu. ‘Thirdness’ is investigated as a means to access shared relational spaces that provide an abundance of symbolic narratives that can be gathered and integrated into the self. This study explores how being connected through shared space has the potential to be constructive in identity formation in the wake of unstable postmodern identity. This study uses a design process adapted from Karl Aspelund (2006) as an approach to the research. In the context of this study, design is seen as more than the resulting artefact. It encompasses the thought process, the methods used and steps taken to reach a particular research outcome. This study attempts to form a synthesis between the theoretical research conducted and design praxis in the form of the design outcome. As inspiration for the design action, the design process followed in this research facilitates the exploration of theory that is perhaps unfamiliar to design discourse. The steps in the process allow the refinement of concepts, application of the theory in a practical environment (a paper making workshop) and finally, the visualisation of the theory via the design artefact (an animated short). The medium of animation is selected purposively in order to convey the interpretive narrative derived from the process. The paper produced in the workshop reflects the theory, inspires the narrative of the animation and is used to create the environment and characters of the animation, which, in turn, embody the overarching concepts of the study. Copyright / Dissertation (MA)--University of Pretoria, 2012. / Visual Arts / unrestricted

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Originating from a disenfranchisement with the contemporary definition and realisation of Westernised architecture as a commodity and product, this thesis seeks to explore alternative examples of positive socio-spatial practice and agency. These alternative spatial practices and methodologies are drawn from participatory and grass-roots development agency in informal settlements and contexts of economic absence, most notably in the global South. This thesis explores whether such examples can be interpreted as practical realisations of key theoretical advocacies for positive social space that have emerged in the context of post-Second World-War capitalism. The principal methodological framework utilises two differing trajectories of spatial discourse. Firstly, Henri Lefebvre and Doreen Massey as formative protagonists of Western spatial critique, and secondly, John F. C. Turner and Nabeel Hamdi as key advocates of participatory development practice in informal settlements. These two research trajectories are notably separated by geographical, economic and political differentiations, as well as conventional disciplinary boundaries. However by undertaking a close textual reading of these discourses this thesis critically re-contextualises the socio-spatial methodologies of participatory development practice, observing multiple theoretical convergences and provocative commonalities. This research proposes that by critically comparing these previously unconnected disciplinary trajectories certain similarities, resonances and equivalences become apparent. These resonances reveal comparable critiques of choice, value, and identity which transcend the gap between such differing theoretical and practical engagements with space. Subsequently, these thematic resonances allow this research to critically engage with further appropriate surrounding discourses, including Marxist theory, orientalism, post- structural pluralism, development anthropology, post-colonial theory and subaltern theory. 5 In summary, this thesis explores aspects of Henri Lefebvre's and Doreen Massey's urban and spatial theory through a close textual reading of key texts from their respective discourses. This methodology provides a layered analysis of post-Marxist urban space, and an exploration of an explicit connection between Lefebvre and Massey in terms of the social production and multiplicity of space. Subsequently, this examination provides a theoretical framework from which to reinterpret and revalue the approaches to participatory development practice found in the writings and projects of John Turner and Nabeel Hamdi. The resulting comparative framework generates interconnected thematic trajectories of enquiry that facilitate the re-reading and critical reflection of Turner and Hamdi's development practices. Thus, selected Western spatial discourse acts as a critical lens through which to re-value the social, political and economical achievements of participatory development. Reciprocally, development practice methodologies are recognised as invaluable and provocative realisations of the socio-spatial qualities that Western spatial discourse has long advocated for, and yet have remained predominantly unrealised in the global North.