The research concerns the Eritrean community resident in Milan where it originated around forty years ago. In this thesis I reflect on how people who migrated from Eritrea at different times, and young people who were born from Eritrean parents in Milan, perceive themselves as a community away from their native country; how they perceive the differences and similarities between each other and those considered to be outside this community; and how the memories of the past are perceived by people with different personal and social histories. Since this research relates to the formation of identities and perceptions of the self among a migrant community, issues are analysed with the awareness that movement, dislocation, and re-location have great impact on the perceptions of home and of the self in cultural, historical and social terms.

This dissertation reports a research project conducted as part of the Doctor of Practical Theology professional doctorate programme at the University of Birmingham. The research explored how the perceived needs of older people in an Anglican Parish Church might be more adequately understood and addressed through an Action Research strategy. Initial investigation by means of focus groups led to the design and implementation of a short course for people over 55 through which they could share their practical wisdom about how to age well. The course is described and reflected on in detail as the key action within this Participative Action Research process. The research adopted a strengths-based philosophy and was influenced by the approach of Asset Based Community Development. Emergent theory from reflection on practice include non-essentialist, general and specific experiences of ageing which are related back to pastoral ministry. The findings suggest some ordinary ways in which older people can be enabled to adopt a positive attitude, overcome obstacles and challenge a deficit model of ageing. Theological reflections explore issues of normalizing ageing, the ethic of abundance, fullness of life, and a Christian theological anthropology which holds ageing to be a Creation good.

The ethnic composition of Britain's population continues to change. This thesis explores the health and healthcare experiences of the fastest-growing sector of our population; people of mixed ethnicity. The thesis contextualises the research with reference to 'race' and ethnicity, immigration, demography and statistics. This research is based within a Foucauldian theoretical framework and utilises narrative data collection methods and an innovative analysis process, based on the construction of a series of metanarratives, to investigate the manner in which people of mixed ethnicity construct their identifies. It also seeks to explain how their ethnicity impacts both on health status and the nature of the mixed ethnicity healthcare experience in the NHS, particularly within the doctor/patient relationship. The findings from the research are discussed in relation to existing health policy initiatives and recommendations made for changes in the way in which the needs of people of mixed ethnicity are assessed, concluding that the present analytical categorisation are inadequate and in need of review. The research also concludes that doctors use their powerful position to suppress the discourse of health and mixed ethnicity.

This thesis focuses on issues of religious diversity affecting police personnel in the workplace. The importance of these issues became apparent as a consequence of research, which I had previously undertaken. In 1995, I succeeded in gaining a Police Research Group Award to investigate chaplaincy within the police service. The research led to the publication of Police Chaplaincy – Servant to the Service. The paper was well received, but criticised for its lack of references to multi-faith chaplaincy to the police service. It was an appropriate criticism, especially as it became apparent that no previous research had addressed this issue. Initial investigation revealed that little, if any, analysis had been offered concerning the wider religious needs of police personnel recruited from the multi-cultural and religiously diverse society of Britain. Research into multi-faith chaplaincy to the police service was only one issue in the overall consideration of the religious needs of police personnel. The focus of my research thesis was therefore determined. The research would examine the multi-faceted issues of religious diversity affecting visible minority ethnic police personnel in the workplace specifically from 1995 to December 2003. This thesis neither engages in theological / philosophical debates concerning the encounter between religions, nor concentrates on theoretical / conceptual discussions. Its primary concern is to augment such discussion with practical and contextual issues that are highlighted in the complex sociological, political and economical contexts of the police service and similar institutions. The research offers a comprehensive and contextual examination of issues of religious diversity which impact on the police service; these issues include ethnicity, religious discrimination, employment law, policy and practice. As these concerns have not been previously examined in such contextual detail, the thesis will contribute to an academic understanding of issues that impact on religious diversity in the working environment and enhance the development of the multi-ethnic society of Britain. As the analysis makes recommendations, the research also offers a useful resource to those responsible for the creation of policies that directly relate to the employment of minority ethnic personnel within the police service. The research is consequently of benefit to the police service and other service providers.

With the advent of multicore processors and an increased emphasis on parallel computing, parallel programming has become a fundamental requirement for achieving available performance. Parallel programming is inherently hard because, to reason about the correctness of a parallel program, programmers have to consider large numbers of interleavings of statements in different threads in the program. Though structured parallelism imposes some restrictions on the programmer, it is an attractive approach because it provides useful guarantees such as deadlock-freedom. However, data races remain a challenging source of bugs in parallel programs. Data races may occur only in few of the possible schedules of a parallel program, thereby making them extremely hard to detect, reproduce, and correct. In the past, dynamic data race detection algorithms have suffered from at least one of the following limitations: some algorithms have a worst-case linear space and time overhead, some algorithms are dependent on a specific scheduling technique, some algorithms generate false positives and false negatives, some have no empirical evaluation as yet, and some require sequential execution of the parallel program. In this thesis, we introduce dynamic data race detection algorithms for structured parallel programs that overcome past limitations. We present a race detection algorithm called ESP-bags that requires the input program to be executed sequentially and another algorithm called SPD3 that can execute the program in parallel. While the ESP-bags algorithm addresses all the above mentioned limitations except sequential execution, the SPD3 algorithm addresses the issue of sequential execution by scaling well across highly parallel shared memory multiprocessors. Our algorithms incur constant space overhead per memory location and time overhead that is independent of the number of processors on which the programs execute. Our race detection algorithms support a rich set of parallel constructs (including async, finish, isolated, and future) that are found in languages such as HJ, X10, and Cilk. Our algorithms for async, finish, and future are precise and sound for a given input. In the presence of isolated, our algorithms are precise but not sound. Our experiments show that our algorithms (for async, finish, and isolated) perform well in practice, incurring an average slowdown of under 3x over the original execution time on a suite of 15 benchmarks. SPD3 is the first practical dynamic race detection algorithm for async-finish parallel programs that can execute the input program in parallel and use constant space per memory location. This takes us closer to our goal of building dynamic data race detectors that can be "always-on" when developing parallel applications.

This thesis considers rap music produced in London. The project employs close textual analysis and ethnography to engage with the formal characteristics of rap and the social relations constructed through its production and use. The black cultural tradition has a considerable history and the thesis focuses upon its appropriation in contemporary London. The study begins with an examination of the process of becoming a rapper. I then consider the collaborative work that rap artists engage in and how these skills contribute to construction of the UK Hip-Hop and Grime scenes. Moving on from this focus on cultural producers, I then consider the practices of rap music’s users and the role of rap in mainstream metropolitan life. I use the public bus as a site through which to observe the ethical relations that are constituted through sharing and playing with rap music. My analysis then turns to the processes through which identity is solicited and produced within nightclubs and concerts. I discuss the production of subaltern masculinities and femininities by the audience in this space. I also consider how MCs orchestrate their audiences in the production of special forms of collectivity and the organisation of a social consciousness. Following this, I examine rap lyrics in a selection of tracks and videos in order to engage with the representation of urban dwelling within the black public sphere. This close analysis allows me to consider rap songs as part of a cultural politics that challenges socio-economic inequality and racist oppression. I then discuss the structural position of the black working classes and the role of cultural production in providing means of avoiding the economic vulnerability of low skill labour. The study concludes with an examination of artists’ efforts to transform their socio-economic positions through their cultural production and self-representation.

This thesis explores the identity formation of three Turkish speaking social groups – Cypriot Turkish, Kurdish and Turkish (CKT) – living in London in a transnational context. The thesis aims to explore how CKT youths negotiate their identity by looking at their everyday experiences. The everyday experiences of CKT youth are observed through their discourses and interpretations of different interactions. By analysing these interactions, this thesis aims to fill some of the gaps in the literature on transnationalism. The theoretical framework of this thesis is based mainly on Giddens’ theory of identity formation and Faist’s concept of transnational social space. By focusing on the concepts of identity and transnational social space, the thesis examines how the experiences, perceptions and social relations of CKT youth are formed by negotiation and dialogue with the country of origin, host culture and individual attachments. Giddens helps us to conceive identity in a dynamic way and as an outcome of the interaction between structural dimensions, social relations and the self. In this thesis, these structural, social and individual dimensions are operationalised through the analysis of CKT youth interaction with their family, community organisations, school contexts, neighbourhood environments and transnational medias. The concept of transnational social space is used to characterise the identity formation occurring across the borders of nation-states and brought into a single social space. The empirical data are based on 45 semi-structured interviews with CKT youth, 16 semi-structured interviews with first generation CKT migrants, one focus group and participatory observation at five community meetings, as well as several social events organised by CKT youth. The thesis concludes that the choices young people make in terms of their ways of life, the sorts of interactions they have, and their social and cultural preferences frame their positioning within society. Their experiences are diverse and transformative, formed through their interactions with various social and structural aspects surrounding them.

This research is an exploration of ethnic narratives of the Circassian community in Jordan, in addition to the nationalist narratives promoted by the state of Jordan, and their reconstruction by the research participants. This research aims to understand how the research participants, as non-Arabs, understand and makes sense of the Pan-Arab ethnonational narratives promoted by the state through the ‘Jordan First’ nationalist campaign and textbooks of national and civic education. It also seeks to understand the ethnic narratives of the Circassian community. It highlights the fact that ethnic narratives are often contextualised, and come to light always in comparison to the other. It also shows how ethnic narratives are gendered, can include or exclude women, and gender relations are ethnicised, or in other words used as markers for group boundaries. The main aim of this research is to unpack the research participants’ conceptualisations of Jordan and the Pan-Arabism, and to understand the strategies they use to include themselves within these narratives. It intends to evaluate whether research participants see themselves as integrated into the Jordanian society or not. Whereas the community itself is often portrayed as integrated into the society, because many of them are in high governmental positions, and the ceremonial guards of the Royal Family are the Circassians, it is also important to examine whether they believe that they are, and how. This thesis contributes to the literature on ethnicity and nationalism based on a minority with unique profile, and also contributes to the overall body of literature on state nationalism in the Middle East. The research has been approached through the use of both qualitative and quantitative data collection methods. It is based on the analysis of textbooks of national and civic education, and the ‘Jordan First’ campaign, in addition to 13 interviews and 62 questionnaires.

Faults are common-place and inevitable in complex applications. Hence, automated techniques are necessary to analyze failed executions and debug the application to locate the fault. For locating faults in programs, dynamic slices have been shown to be very effective in reducing the effort of debugging. The user needs to inspect only a small subset of program statements to get to the root cause of the fault. While prior work has primarily focussed on single-threaded programs, this dissertation shows how dynamic slicing can be used for fault location in multithreaded programs. This dissertation also shows that dynamic slices can be used to track down faults due to data races in multithreaded programs by incorporating additional data dependences that arise in the presence of many threads. In order to construct the dynamic slices, dependence traces are collected and processed. However, program runs generate traces in the order of Gigabytes in a few seconds. Hence, for multithreaded program runs that are long-running, the process of collecting and storing these traces poses a significant challenge. This dissertation proposes two techniques to overcome this challenge. Experiments indicate that the techniques combined can reduce the size of the traces by 3 orders of magnitude. For applications that are critical and for which down time is highly detrimental, techniques for surviving software failures and letting the execution continue are desired. This dissertation proposes one such technique to recover applications from a class of faults that are caused by the execution environment and prevent the fault in future runs. This technique has been successfully used to avoid faults in a variety of applications caused due to thread scheduling, heap overflow, and malformed user requests. Case studies indicate that, for most environment bugs, the point in the execution where the environment modification is necessary can be clearly pin-pointed by using the proposed system and the fault can be avoided in the first attempt. The case studies also show that the patches needed to prevent the different faults are simple and the overhead induced by the system during the normal run of the application is less than 10 \%, on average.

Convention Theory sees government, market, community and general public work with each other by coordination. Over time, this coordination yields faith and trust, i.e. public good for all. This research employs Convention Theory as an aid to understanding the public disputes brought by two new urban renewal policies in Hong Kong before and after the 1997 handover. It compares two major cases representing the two new policies. Through an examination of the processes of these social disputes and each patty's justifications in the different, case studies, this thesis explores the differentiation between them in terms of people's and specific communities' expectation, faith and trust in public policies under the British administration and the new Hong Kong SAR administration. It brings in historical and political contexts to illustrate how and why people frame a new public policy with established social conventions so as to judge its impacts on self, community and public interests. A new public policy that becomes a cause for public dispute inevitably jeopardises this coordination. A change in suzerainty, then, sharply exposes work of this underlying coordination and its jeopardy. This explains the very different evaluations and actions by groups facing the same policy concurrently. Further, the thesis attempts to ascertain the reasons for such difference. Time plays a crucial role in this framework, one that supplements the critical ambit of Convention Theory. The time frame for the two case studies (1988-2008) allows for a comprehensive and continuous comparison of co-ordination, confidence and tmst between communities, society and government before and after Hong Kong's suzerainty changed from Britain to China in 1997. By contextualising two cases; the first evolving over the years 1988-2004 and the second, 2002-2008, this thesis assesses the impact of this change, both in terms of the evolution of governmental and administrative bodies and their affect on perceptions of justice, faith and trust, and on people's perceptions of how this change affected both their own self-interest as well as the interest of Hong Kong per se. Hence this study applies Convention Theory and extends it through its analysis of the role and impact of contextual socio-political change during this time. The in-depth comparative analysis reveals how the pursuit of collective private interests at the community level later evolves into a pursuit for democracy, which links the community to a wider public-whose support it both solicits and wins-as a counterweight to widespread morally and politically iniquitous, unjust and indefensible outcomes. Thus, the evidence furthers Convention Theory's dynamic view of a community's collective cognition and critical capacity that transmutes from the private and familiar to incorporate the public in the transformation from a private dispute made public. This thesis argues that the social values