Much recent scholarship celebrates the early modern period for its development of broader public political engagement through printed media and coffeehouse culture. It is the argument of this study that the formation in England under Charles II of a public sphere may be shown to have followed a reassessment of political discourse that began at Westminster during the troubled reign of that king’s father, Charles I. The narrative of parliament’s growth in this era from an “event to an institution,” as one historian describes it, tells of more than opposition to the King on the battlefields of the English Civil War. Parliament-work in the early years of England’s revolutionary decade also set new expectations for rhetorical deliberation as a means of directing policy in the House of Commons. The ideals of discursive politics that were voiced in the Short Parliament (May 1640), and more fully put into practice in the opening session of the Long Parliament (November 1640), were soon also accepted by politically-minded authors and readers outside Westminster. Prose controversy published in print and political poetry that circulated in manuscript both demonstrate that the burgeoning culture of debate outside parliament could still issue “in a parliamentary way.” Such promotion of productive textual engagements eventually constituted a wider, notional assembly, whose participants – citizen readers – were as much a product of deliberate education and fashioning as they were of the “conjuring,” “interpellation,” or “summoning” that recent scholarly vocabulary suggests. Following the spirit of reform in the English parliament, and subsequently developing through the years of partisan political writing that followed, public opinion, like the Commons, established itself in this era as an institution in its own right. These public and private assemblies disseminated the unprecedented amount of parliamentary writing and record-keeping that distinguishes the period under review, and this rich archive provides the literary and historical context for this study.

"Reading the Narcosphere: A Queer Hemispheric Critique of Narco Cultural Production," analyzes the emergence of contemporary drug politics (drug trade and drug war) as a dominant cultural narrative of the public sphere, producing what I call the narco-sphere. Drawing from theories on sexuality, subjectivity and biopolitics, I examine the intractability and interconnectedness of social relations of race, gender, and class in narco cultural production by building on critical work in social and political theory as well as narco studies. Rather than merely reflecting on the effects of the ongoing drug war, narco cultural texts about Colombia, Mexico, and the U.S.-Mexico border produce relations of power that while intending to critique drug culture and neoliberalism, reify complicit social hierarchies through discourses of difference that promote marginalization and exclusion of vulnerable subjects. Through readings of cultural texts such as Jorge Franco's Rosario Tijeras, Lourdes Portillo’s Señorita Extraviada, Fernando Vallejo's Our Lady of the Assassins, and Luis Estrada’s film El Infierno, I further demonstrate how the social relations portrayed are not simply endemic to the drug trade and the drug war but instead are deployments of power in accordance with neoliberalism and neocolonialism. Through my notion of the narco-sphere and a queer critique, I offer a more incisive way to read difference within western hemispheric cultural politics.

Neste trabalho estudaremos subconjuntos especiais da esfera unitária Sm-1 de Rm, m 2, comumente chamados na literatura de designs esféricos. Os objetivos principais são analisar várias equivalências para o conceito, suas conexões com ambos, rotações sobre Sm?1 e mergulhos em esferas de dimensão superior, e resultados sobre a cardinalidade dos designs esféricos / In this work we will study specials subsets of the unitary sphere Sm-1 of Rm, m 2, usually called in literature spherical designs. The main objectives are to analyze many equivalences for the concept, its connections with both, rotations on Sm?1 and embedded in spheres of higher dimension, and results on the cardinality of spherical designs

Democracy posits that broadly based participation in deliberative processes will lead to laws and policies that are more inclusive and more just than the measures enacted by monarchs or powerful elites (Hauser 1999:5). Jurgen Habermas (1964) propounded the theoretical concept of the public sphere as a “domain of social life where public opinion is expressed by means of rational public discourse and debate” (Papacharissi, 2013:113). It is on such a platform that democracy is seen in action. Changes in socio-economic structures of states and advancements in communication technologies that have occurred in the last decades have facilitated a transformation in the character of the public spheres. The explosion of new media technologies has made it possible for average consumers to archive, annotate, appropriate, and recirculate media content in powerful new ways, thus fostering a participatory culture (Jenkins et al :2004). This research analyses the extent to which six videos categorized under the banner, “Hug a Muslim” campaign utilize YouTube as a platform for opinion sharing and for promoting public awareness of negative, stereotypical representations of Muslims. Such representations promote mistrust, suspicion, fear and other prejudices that associate Islam and Muslims with discourses of terrorism. Through critical discourse analysis, this research discusses power dynamics and discursive elements underlying the videos in the sample. Applying Gerard Hauser (1998) ´s rhetorical model of the public sphere, this research explores the extent to which online viewer comments accompanying the videos on YouTube adhere to the five rhetorical norms that determine their effectiveness as public sphere discourse, thus helping in establishing whether or not YouTube functions as an effective rhetorical public sphere in the context of the “Hug a Muslim” campaign. This study revealed that 58% of the analysed YouTube viewer comments on the campaign were compatible with the five rhetorical norms and thus reflecting YouTube´s function as a rhetorical public sphere in the context of the “Hug a Muslim” campaign. In an effort to further understand the motivations as well as underlying processes surrounding the creation and sharing of the videos, online questionnaires have been administered to the content producers of the videos under analysis in this research.

Increasing evidence suggests that breast cancer is caused by cancer stem cells and the cure of breast cancer requires eradication of breast cancer stem cells. In this study, we established and characterized a sphere culture model derived from side population cells from the human breast cancer cell line MCF7. The sphere culture could be maintained long term and was enriched in cells expressing known breast cancer stem cell marker CD44+CD24 -. These sphere cells showed higher colony formation ability in vitro and higher tumorigenicity in vivo than MCF7 cells, suggesting the enrichment of breast cancer stem/progenitor cells. To identify compounds that preferentially inhibit the sphere cells, we performed a compound library screening. Two lead compounds, NSC24076 and NSC125034 and an analog of NSC125034, 8-quinolinol (8Q), were identified as having preferential activity against the sphere cells. 8Q showed some antitumor activity alone but had much better therapeutic effect and relapse prevention when combined with paclitaxel than either 8Q or paclitaxel alone in both MCF7 and MDA-MB-435 xenograft models. We propose that compounds selectively targeting cancer stem/progenitor cells when combined with standard chemotherapy drugs may produce an improved treatment of cancer without significant relapse.

Abstract Print media reports on the SABC suggest that the public service broadcaster (PSB) is undergoing a crisis in terms of fulfilling its PSB responsibilities. Hence, this study examines whether the SABC is a genuine PSB. In examining the SABC as a PSB, theories of media and democracy and critical political economy of the media are used. However, this study also engages with the corollary theories of the public sphere, the public interest, PSB, and development journalism. The study uses the PSB characteristics of independence, accountability, distinctiveness and finance as themes to ascertain whether the SABC is a genuine PSB. The methodology of this study consists of institutional analysis, document analysis (which is split into a policy analysis and an examination of print media reports on the SABC) and semi-structured interviews. The study finds that firstly, the SABC’s independence, both politically and economically, is eroded. Secondly, although the SABC is accountable to the state and ICASA, the institution is not adequately accountable to the public it claims to serve. Thirdly, due to the SABC’s reliance on commercial sources of funding, the institution is increasingly shifting towards commercialisation. Fourthly, due to the SABC’s increasing shift towards commercialisation, the institution’s high-quality content provision is being compromised. Hence, the SABC’s distinctiveness in comparison to other broadcasters is eroding. The SABC’s violation of the central tenets of PSB is indicative of a governance crisis within the institution, but most importantly, it indicates that the SABC is not a genuine PSB. A core reason for the SABC’s inability to fulfil the central tenets of PSB and the governance crisis that has befell the institution, are flaws in legislation. The legislation that governs the SABC does not adequately ensure the institution’s independence from the government or its accountability to the public. Consequently, legislation governing the SABC inhibits the institution from fulfilling its PSB responsibilities.

Student Number : 9202983Y - PhD thesis - School of Computational and Applied Mathematics - Faculty of Science / A derivation is given of the constitutive equation for an incompressible transversely isotropic hyperelastic material in which the direction of the anisotropic director is unspecified. The field equations for a transversely isotropic incompressible hyperelastic material are obtained. Nonlinear radial oscillations in transversely isotropic incompressible cylindrical tubes are investigated. A second order nonlinear ordinary differential equation, expressed in terms of the strain-energy function, is derived. It has the same form as for radial oscillations in an isotropic tube. A generalised Mooney-Rivlin strainenergy function is used. Radial oscillations with a time dependent net applied surface pressure are first considered. For a radial transversely isotropic thin-walled tube the differential equation has a Lie point symmetry for a special form of the strain-energy function and a special time dependent applied surface pressure. The Lie point symmetry is used to transform the equation to an autonomous differential equation which is reduced to an Abel equation of the second kind. A similar analysis is done for radial oscillations in a tangential transversely isotropic tube but computer graphs show that the solution is unstable. Radial oscillations in a longitudinal transversely isotropic tube and an isotropic tube are the same. The Ermakov-Pinney equation is derived. Radial oscillations in thick-walled and thin-walled cylindrical tubes with the Heaviside step loading boundary condition are next investigated. For radial, tangential and longitudinal transversely isotropic tubes a first integral is derived and effective potentials are defined. Using the effective potentials, conditions for bounded oscillations and the end points of the oscillations are obtained. Upper and lower bounds on the period are derived. Anisotropy reduces the amplitude of the oscillation making the tube stiffer and reduces the period. Thirdly, free radial oscillations in a thin-walled cylindrical tube are investigated. Knowles(1960) has shown that for free radial oscillations in an isotropic tube, ab = 1 where a and b are the minimum and maximum values of the radial coordinate. It is shown that if the initial velocity v0 vanishes or if v0 6= 1 but second order terms in the anisotropy are neglected then for free radial oscillations, ab > 1 in a radial transversely isotropic tube and ab < 1 in a tangential transversely isotropic tube. Radial oscillations in transversely isotropic incompressible spherical shells are investigated. Only radial transversely isotropic shells are considered because it is found that the Cauchy stress tensor is not bounded everywhere in tangential and longitudinal transversely isotropic shells. For a thin-walled radial transversely isotropic spherical shell with generalised Mooney-Rivlin strain-energy function the differential equation for radial oscillations has no Lie point symmetries if the net applied surface pressure is time dependent. The inflation of a thin-walled radial transversely isotropic spherical shell of generalised Mooney-Rivlin material is considered. It is assumed that the inflation proceeds sufficiently slowly that the inertia term in the equation for radial oscillations can be neglected. The conditions for snap buckling to occur, in which the pressure decreases before steadily increasing again, are investigated. The maximum value of the parameter for snap buckling to occur is increased by the anisotropy.

Public art with religious themes or inspiration often represents, promotes, or challenges the concerns, values, characteristics, and/or history of the community in which this art is situated. This dissertation explores the contribution of public religious art to generating dialogue about social issues, in particular homelessness. It builds on scholarship indicating that publicly engaged art is a catalyst for promoting mutual understanding among diverse stakeholders with differing worldviews and joins an ongoing scholarly debate about the place of religion in a secular democratic society. As a case study, I use Timothy Schmalz’s bronze sculpture entitled Homeless Jesus, as an example of public art intended to generate public awareness about social marginalization and homelessness. Situated within the critical paradigm, this dissertation uses a case study methodology to explore the ways faith-based organizations and secular media elicit and use meanings through the representation of sculpture in public and mediated spaces. To gain multiple vantage points for examining the meanings and uses of Homeless Jesus, this case study draws on interviews with faith leaders at organizations who have a replica or are located near the replica in Hamilton, Ontario (n=12), online news articles that reference it (n=85), and photos of replicas in six urban locations. Data analysis proceeded through three stages: an iconography, a narrative inquiry, and a thematic analysis. This case study culminates in insights on the relationship between public religious art and public dialogues on social issues, such as homelessness. Findings indicate that public religious art is a mode in which faith-based organizations seek to contribute to public dialogues about social issues in a manner that is accessible and acceptable to those with differing worldviews. / Dissertation / Doctor of Philosophy (PhD) / Public art with religious themes or inspiration can represent, promote, or challenge the concerns, values, identity, and/or history of the communities in which it is situated. Using Timothy Schmalz’s bronze sculpture entitled Homeless Jesus, as an example of public religious art intended to generate awareness about homelessness, this dissertation explores the contribution of public religious art to public dialogues about social issues. To understand how faith-based organizations and secular media interpret and use Homeless Jesus, I analyze photos of replicas, online news articles that reference it, and interviews with faith leaders at organizations that have a replica or are located near the replica in Hamilton, Ontario. Findings indicate that faith-based organizations use art to contribute to public dialogues in a manner they hope is accessible to and respectful of those with differing worldviews.

This thesis examines online journalism in the Kurdistan region of Iraq and its role in political debate in this emerging democracy. It also focuses on the role of the internet in the public sphere, explores the historical context in which Kurdish online journalism has developed and compares mass media in the Kurdistan region to that in other newly democratic countries, in addition to the mass media landscape, human rights conditions and political system in the Kurdistan region and Iraq overall are explored. Data has been collected through in-depth interviewing of journalists, both independent and affiliated with political parties, as well as media academics and other educators. Moreover, as a case study, a qualitative thematic analysis has been carried out on opinion articles in online news sites to search for key themes and messages published and explore the limits of free discussion online. The thesis argues that although there are many barriers to media work and freedom of expression, online journalism in the Kurdistan region is an alternative tool for expression and constitutes a better medium for promoting freedom of speech than mainstream media outlets. It then suggests recommendations for conducting further studies about the development and influences of online journalism and social media on Kurdish society. / Kurdistan Regional Government (KRG)

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