12,933 research outputs found
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Armed violence and poverty in Northern Kenya: a mini case study for the Armed Violence and Poverty Initiative
YesThis report on Northern Kenya is one of 13 case studies (all of which can be found at www.bradford.ac.uk/cics). This research draws upon secondary data sources including existing research studies, reports and evaluations commissioned by operational agencies, and early warning and survey data where this has been available. These secondary sources have been complemented by interviews with government officers, aid policymakers and practitioners, researchers and members of the local population. The authors would like to thank Patta Scott-Villiers for comments on an earlier draft. The analysis and opinions expressed in this report are those of the authors and do not necessarily represent the views or policy of DFID or the UK government
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Reflectance spectra of Mesosiderites: Implications for asteroid 4 Vesta
Oxygen isotopic data argues that HEDs and mesosiderites may be from the same parent body. A spectral survey of mesosiderites was done to determine their spectral properties in the visible and near-infrared and compare to HEDs
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Scale-up of oscillatory flow mixing
Oscillatory Flow Mixing is a recent development in mixing technology which has evolved
over the past decade. It has a number of similarities to other mixing technologies,
particularly pulsed and reciprocating plate columns, but at the laboratory scale has
demonstrated a number of advantageous properties. These properties (such as control of
residence time distribution, improved heat transfer and predictable mixing times) have
been demonstrated at the laboratory scale for a wide range of different potential
applications, but until now there has been a lack of firm understanding and research into
how the technology could be scaled-up into an industrial scale process.
This thesis addresses the problem of scale-up in Oscillatory Flow Mixing. It reports on a
programme of experiments on geometrically scaled apparatus with the measurement of
residence time distributions and flow visualisation as the principal methods of
investigating the wide range of flow conditions that can be achieved by control of net
flow and of oscillatory conditions. Results from these investigations are interpreted as
axial dispersion coefficients and also compared with results obtained computationally
using a fluid mechanics approach to simulate flow fields and the injection of inert tracers
into those flow fields.
Significant clarification is reported concerning the analysis of axial dispersion
measurements using the diffusion model for which conflicting solutions were identified in
the literature. The development of a flow visualisation technique using fluorescent dye
streaklines is also reported. Using the latter technique stable manifolds in Oscillatory
Flow Mixing have for the first time been experimentally observed as well as a range of
other flow regimes.
The study of scale-up was extended by the successful construction and investigation of an
alternative reactor geometry with the potential for use in large-scale plant.
From the work presented in the thesis it is concluded that Oscillatory Flow Mixing is a
technology which in general lends itself readily to scaling-up from laboratory to pilot
plant scale, and most probably to industrial scale. Experiments performed on small
laboratory apparatus (containing less than one litre of fluid) can with confidence be used
to predict mixing behaviour in much larger plant (containing hundreds of litres of fluid.
A Study to Determine the Acceptance by Potential Employers of a Cooperative Education Program for Gifted and Talented Students in Newport News Public Schools
In order to plan for this proposed cooperative program, it was necessary to gain specific information from the business community on the Peninsula. The goals of this study were: 1. To determine the job placements for gifted and talented students that would be available on the peninsula; 2. To determine the variety of occupational areas that would provide assistance to the program; 3. To determine the job-entry skills that prospective employers would require of a student in the program
On inbreeding in Jersey cattle
1. Inbreeding in jersey cattle: the possibility of yield and quality of milk being inherited in a sex linked manner.
2. The inheritance of milk yield in Ayrshire cows
3. The inheritance of milk yield
4. Studies on the inheritance of yield and quality of milk in dairy cattle
Environmental Enrichment for Primates in Laboratories
Environmental enrichment is a critical component of Refinement, one of the 3Rs underlying humane experimentation on animals. In this paper I discuss why primates housed in laboratories, which often have constraints of space and study protocols, are a special case for enrichment. I outline a framework for categorising the different types of enrichment, using the marmoset as a case study, and summarise the methods used to determine what animals want/prefer. I briefly review the arguments that enrichment does not negatively affect experimental outcomes. Finally I focus on complexity and novelty, choice and control, the underlying features of enrichment that makes it successful, and how combined with a thorough understanding of natural history we can put effective enrichment into practice in laboratories. Throughout the paper I emphasise the need to evaluate enrichment to ensure it is having the desired effect
Primates in laboratories: Standardisation, Harmonisation, Variation and Science
Many animals are bred specifically for use in laboratories; the genetic variation between individuals is minimised, and housing and husbandry is often standardised. The rationale is to decrease the variation of the scientific findings, and allow a reduction in number of animals used, although these relationships are questioned. Non-human primates used in laboratories present a different case; there are genetic differences, and considerable variation in rearing practices, housing, enrichment and training both among, and often within, facilities. The impact of this variation on both welfare and science warrants further investigation
Engaging with the Scottish Government's agenda on health and social care.
Outside of SF circles, SF remains relatively unknown. The Scottish Solution Focused Network (SSFN) is an organisation of SF practitioners established to support and promote SF practice in Scotland. In this paper, the authors discuss their recent thinking, derived from a series of conversations within the SSFN, on how their organisation can engage with one aspect of the Scottish Government's (formerly known as the Scottish Executive) strategy for health and wellbeing. They argue that SF practitioners in this field have a moral obligation to engage in political discourse, and that in Scotland, the Government are actively promoting SF methodologies in practice
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Armed violence and poverty in Southern Somalia: a case study for the Armed Violence and Poverty Initiative
YesThis report on Southern Sudan is one of 13 case studies (all of which can be found at www.bradford.ac.uk/cics). This research draws upon secondary data sources, including existing research studies, reports and evaluations commissioned by operational agencies, and early warning and survey data where this has been available. These secondary sources have been complemented by interviews with government officers, aid policymakers and practitioners, researchers and members of the local population. The analysis and opinions expressed in this report are those of the authors and do not necessarily represent the views or policy of DFID or the UK government
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