The Nubians of Kenya and the emancipatory potential of collective recognition

The Nubians in Kenya, a community who have in the past been considered stateless, have recently begun to emerge from their marginal status in the country. Over the past two years, as individuals Nubians have had improved access to ID cards and as a group they received a code in the 2009 census. However these political gains are only part of a greater struggle on the part of the community to be fully recognized as a tribe of Kenya. Identity politics and claims for recognition dominate social politics in many African countries, however the normative underpinnings of these complex and often challenging claims are yet to be fully explored in the African context. Drawing on seven months of qualitative fieldwork, this article explores the emancipatory potential of collective recognition. By articulating a positive vision of the moral and political value of ethnic community, the article makes a critical contribution to theory of the politics of recognition in the African context

Counting as citizens: Recognition of the Nubians in the 2009 Kenyan census

This article uses the case of the Nubians in Kenya as an ethnic minority, and the 2009 Kenyan census as a particular form of recognition, to engage in a particular aspect of the debates surrounding the politics of recognition: the perceived competitive nature of the relationship between national and subnational groups, in this case ethnic groups. Using data obtained during a 6-month qualitative study conducted over the census period, this paper evaluates the response of some members of the Nubian community to their participation in the census, focusing on its most controversial question, ‘What tribe are you?’ The article concludes that the dynamic between ethnic and national identities and allegiances, when the former are recognized, can be the site of agency, participatory citizenship, and therefore also democratic equality, action and interaction

Evaluating the impact of binary parameter uncertainty on stellar population properties

Binary stars have been shown to have a substantial impact on the integrated light of stellar populations, particularly at low metallicity and early ages - conditions prevalent in the distant Universe. But the fraction of stars in stellar multiples as a function of mass, their likely initial periods and distribution of mass ratios are all known empirically from observations only in the local Universe. Each has associated uncertainties. We explore the impact of these uncertainties in binary parameters on the properties of integrated stellar populations, considering which properties and timescales are most susceptible to uncertainty introduced by binary fractions and whether observations of the integrated light might be sufficient to determine binary parameters. We conclude that the effects of uncertainty in the empirical binary parameter distributions are likely smaller than those introduced by metallicity and stellar population age uncertainties for observational data. We identify emission in the He II 1640Å emission line and continuum colour in the ultraviolet-optical as potential indicators of a high mass binary presence, although poorly constrained metallicity, dust extinction and degeneracies in plausible star formation history are likely to swamp any measurable signal

Contextualizing the business responsibility to respect: How much is lost in translation?

As the work of the UN Special Representative (UNSR) for business and human rights moves towards its conclusion in mid-2011, the core principles of the UNSR’s ‘responsibility to respect’ framework have received widespread endorsement from businesses, NGOs and governments. The translation of these general principles into specific obligations governing business activity will need to differ according to context. The reasons why overarching regulatory principles can get ‘lost in translation’ when applied in practice have important implications for understanding how the UNSR’s responsibility to respect framework can be meaningfully implemented across widely varying regulatory contexts. The central goal of this chapter is to understand why and under what conditions this loss is likely to arise, and how regulatory standards for business and human rights might be designed to enable the responsibility to respect principle to be applied in context-sensitive ways, without losing regulatory force

Nanotechnology enabled microfluidics/Raman spectroscopy systems for bio applications

The vision for this PhD research project was born out of a desire to study the in situ behaviour of suspended nano-materials; specifically, implementing a Raman microscopy system for investigating suspended materials in the microfluidic environment. The author developed a set of innovative research goals to achieve this vision, which include: (1) forming a suitable microfluidic system which can apply controlled forces onto the suspended materials on demand, (2) implementing Raman microscopy to study the behaviour of particles under the influence of such forces while inside the microfluidic system and (3) incorporating the developed microfluidic system for investigating suspended materials of low concentration, including biological cells and surface-enhanced Raman scattering studies. The author implemented the research in three distinct stages such that the work in earlier stages could provide the platform for the future work. In the first stage, the author designed a microfluidic dielectrophoresis platform consisting of curved microelectrodes. This platform was integrated with a Raman microscopy system for creating a novel system capable of detecting suspended particles of various types and spatial concentrations. The system was benchmarked using polystyrene and tungsten trioxide suspended particles, and the outcomes of this novel integrated system showed its strong potential for the determination of suspended particles types and their direct mapping, with several unique advantages over conventional optical systems. In the second stage of this research, the author developed a novel microfluidic-DEP system that could manipulate suspended silver nanoparticles’ spacing in three dimensions. Silver nanoparticles are capable of producing strong surface enhanced Raman scattering (SERS) signals, allowing the Raman system to detect very low concentrations of suspended analytes. DEP provided facile control of the positions and spacings of the suspended silver nanoparticles, and allowed for the creation of SERS hot-spots. The system was studied to determine the optimum DEP and microfluidic flow parameters for generating SERS, and the author was able to demonstrate this as a reversible process. This stage of the research used dipicolinic acid as the target analyte, and the system was demonstrated to have detection limits as small as ~1 ppm concentration levels. In the third stage, the microfluidic-DEP platform was used for trapping and isolating yeast cells. Silver nanoparticles were again used for SERS applications. The trapped cells were interrogated by the Raman system in order to obtain deeper understandings of cells functionalities and their communications under various physical conditions: live vs. dead and isolated vs. grouped. Live vs. dead experiments were conducted as a benchmark, to observe whether SERS is capable of differentiating cells based on the life condition. The research was expanded to study cells that were isolated from one another, and compared those Raman signatures to those from cells in grouped clusters. The author was able to extract unique information from such studies, including the importance of glycine, or proteins with glycine subunits, in the proliferation of yeast cells. The developed system showed great potential as a universal platform for the in situ study of cells, their communications and functionalities

The Office of William Tite (1798-1873): architecture at the start of the railway age

This article looks at how William Tite’s office practice developed in the context of the financial and professional world in which he lived and worked. The office supported Tite’s activities for 50 years from c. 1823 until his death in 1873. He was one of the most successful English architects of the nineteenth century in terms of wealth and general reputation. His principal office was located in the City of London, close to his commercial clients. With the arrival of the railway age, these clients enabled Tite to become a well-known figure in the provision of professional architectural and valuation services to railway companies. Like most practices of the time, his office staff was small and he was only able to provide services by delegating or passing on work to other architects and surveyors, and by establishing sub-offices where necessary. Thus, in the 1840s, he had offices of some form in France, Carlisle, Edinburgh and Perth. His busy schedule meant he frequently provided sketches whilst in the midst of site visits, and he therefore relied on his office staff to provide finished drawings. Ultimately, he had a number of partners who carried on his practice for a further generation.Résumé en françai