3,984 research outputs found

    No. 11: Urban Food Security, Rural Bias and the Global Development Agenda

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    This discussion paper sets out the global, African, and South African contexts within which both urban development and food security agendas in Africa are framed. It argues that the pervasive rural bias and anti-urbanism identified in the international and regional food security agendas in the first decade of the 21st century have persisted into the second. In examining whether the last decade has brought any significant changes to the dominant discourse and its accompanying sidelining of urbanization and urban food security in policy debate and formulation, the authors find that there are promising signs for cracks in the edifice but that rural bias remains the dominant feature of current thinking about food security policies. Although researchers have begun to press for the urban to be included in the food security agenda, and food to be included in the urban agenda, there has been limited policy uptake to date at the international level and very little at the municipal level. If urban food security is addressed in a substantive manner, it will probably be indirectly, through the actions of the influential global nutrition lobby

    No. 22: The Return of Food: Poverty and Urban Food Security in Zimbabwe after the Crisis

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    The nadir of Zimbabwe’s political and economic crisis in 2008 coincided with the implementation of a baseline household food security survey in Harare by AFSUN. This survey found that households in lowincome urban areas in Zimbabwe’s capital were far worse off in terms of all the food insecurity and poverty indicators than households in the other 10 Southern African cities surveyed by AFSUN. The central question addressed in this report is whether food security in Zimbabwe’s urban centres has improved. AFSUN conducted a follow-up survey in 2012 that allows for direct longitudinal comparisons of continuity and change. The status of household food security in low-income neighbourhoods in Harare was improved in 2012 relative to 2008, and yet persistently high rates of severe food insecurity demonstrate that the daily need to access adequate food continued to be a major challenge. The key lesson for policymakers is that even in the context of overall economic improvement, food insecurity remains endemic among the poorest segments of the urban population. Households are already accustomed to drawing on resources outside of the formal economy and improvements in employment income have not reversed that trend. These alternative livelihood strategies should therefore be considered as a normal part of urban life and supported with state resources that can improve access to food for the most marginalized groups

    Goal driven optimization of process parameters for maximum efficiency in laser bending of advanced high strength steels

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    Laser forming or bending is fast becoming an attractive option for the forming of advanced high strength steels (AHSS), due primarily to the reduced formability of AHSS when compared with conventional steels in traditional contact-based forming processes. An inherently iterative process, laser forming must be optimized for efficiency in order to compete with contact based forming processes; as such, a robust and accurate method of optimal process parameter prediction is required. In this paper, goal driven optimization is conducted, utilizing numerical simulations as the basis for the prediction of optimal process parameters for the laser bending of DP 1000 steel. A key consideration of the optimization process is the requirement for minimal microstructural transformation in automotive grade high strength steels such as DP 1000

    Screening EEG in Aircrew Selection: Clinical Aerospace Neurology Perspective

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    As clinical aerospace neurologists we do not favor using screening EEG in pilot selection on unselected and otherwise asymptomatic individuals. The role of EEG in aviation screening should be as an adjunct to diagnosis, and the decision to disqualify a pilot should never be based solely on the EEG. Although a policy of using a screening EEG in an unselected population might detect an individual with a potentially increased relative risk, it would needlessly exclude many applicants who would probably never have a seizure. A diagnostic test performed on an asymptomatic individual without clinical indications, in a population with a low prevalence of disease (seizure) may be of limited or possibly detrimental value. We feel that rather than do EEGs on all candidates, a better approach would be to perform an EEG for a specific indication, such as family history of seizure, single convulsion (seizure) , history of unexplained loss of consciousness or head injury. Routine screening EEGs in unselected aviation applications are not done without clinical indication in the U.S. Air Force, Navy, or NASA. The USAF discontinued routine screening EEGs for selection in 1978, the U.S. Navy discontinued it in 1981 , and NASA discontinued it in 1995. EEG as an aeromedical screening tool in the US Navy dates back to 1939. The US Navy routinely used EEGs to screen all aeromedical personnel from 1961 to 1981. The incidence of epileptiform activity on EEG in asymptomatic flight candidates ranges from 0.11 to 2.5%. In 3 studies of asymptomatic flight candidates with epileptiform activity on EEG followed for 2 to 15 years, 1 of 31 (3.2%), 1 of 30 (3.3%), and 0 of 14 (0%) developed a seizure, for a cumulative risk of an individual with an epileptiform EEG developing a seizure of 2.67% (2 in 75). Of 28,658 student naval aviation personnel screened 31 had spikes and/or slow waves on EEG, and only 1 later developed a seizure. Of the 28,627 who had a normal EEG, 4 later developed seizures, or .0139% (4/28627). After review of the value of the EEG as a screening tool, the US Navy now uses EEG only for certain clinical indications (head injury, unexplained loss of consciousness, family history of epilepsy, and abnormal neurological exam). Currently the US Navy does not use EEG for screening for any flight applicant without a neurologic indication. In the US Navy, an electroencephalographic pattern is determined to be epileptiform by a neurologist

    Factors associated with access to care and healthcare utilisation in the homeless population of England

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    Introduction: People experiencing homelessness are known to have complex health needs which are often compounded by poor access to healthcare. This study investigates the individual-level factors associated with access to care and healthcare utilisation among homeless people in England. Methods: A cross-sectional sample of 2,505 homeless people from 19 areas of England was used to investigate associations with access to care and healthcare utilisation. Results: Rough sleepers were much less likely to be registered with a GP (OR 0.45, CI 0.30-0.66) than single homeless in accommodation (reference group) or the hidden homeless (OR 1.48 CI 0.88-2.50). Those who had recently been refused registration by a GP or dentist also had lower odds of being admitted to hospital (OR 0.67, CI 0.49-0.91) or using an ambulance (OR 0.73, CI 0.54-0.99). Conclusions: The most vulnerable homeless people appear to face the greatest barriers to utilising healthcare. Rough sleepers have particularly low rates of GP registration and this appears to have a knock-on effect on admission to hospital. Improving primary care access for the homeless population could ensure that some of the most vulnerable people in society are able to access vital services which they are currently missing out on

    Research and Practice in Voice Studies: Searching for a Methodology

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    As more and more actor training conservatoires become subsumed into university structures there is a growing pressure on practice based teachers of voice to become active researchers. At the same time there is a growing area of scholarly research within Voice Studies. This article examines the shifting patterns of research and practice within Voice Studies and uses, as a case study, the author’s experiences of teaching at the Royal Central School of Speech and Drama (RCSSD). The author examines tensions between practice and research within a conservatoire setting and explores potential research methodologies in relation to this. The author proposes Practice as Research (PaR) as a suitable methodology for research within practice based Voice Studies and draws on current discourses relating to PaR within Theatre and Performance. The author proposes a model for Voice Studies PaR, which is based on the work of Robin Nelson, and demonstrates how this is being applied within Voice Studies research at RCSSD. The author addresses issues of dissemination of PaR and briefly relates the work in the UK to growing research agendas internationally

    What are Millian Qualitative Superiorities?

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    In an article published in Prolegomena 2006, Christoph Schmidt-Petri has defended his interpretation and attacked mine of Mill’s idea that higher kinds of pleasure are superior in quality to lower kinds, regardless of quantity. Millian qualitative superiorities as I understand them are infinite superiorities. In this paper, I clarify my interpretation and show how Schmidt-Petri has misrepresented it and ignored the obvious textual support for it. As a result, he fails to understand how genuine Millian qualitative superiorities determine the novel structure of Mill’s pluralistic utilitarianism, in which a social code of justice that distributes equal rights and duties takes absolute priority over competing considerations. Schmidt-Petri’s own interpretation is a non-starter, because it does noteven recognize that Mill is talking about different kinds of pleasant feelings, such that the higher kinds are intrinsically more valuable than the lower. I conclude by outlining why my interpretation is free of any metaphysical commitment to the “essence” of pleasur

    Attitudes Toward Participation in Organized Religion: Its Impact on Mental Health and Life Satisfaction

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    This is a non-experimental study which is designed to discover potential relationships between an individual’s attitude towards participation in organized religion and their mental health, as well as their life satisfaction. The study contained 203 young adults taken from a convenience sample using social media, e-mail, and SMS messages. The research was conducted using a survey form composed of three instruments intended to measure attitude towards religion, general well-being, and life satisfaction. The results from the study indicated that there is a weak positive relationship between one’s attitude towards organized religion and mental health. Additionally, the results also indicated that there is a weak positive relationship between one’s attitude towards organized religion and their life satisfaction
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