2,733 research outputs found

    Russell Square: a lifelong resource for teaching and learning

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    A quarter of a century ago, in 1978, Birkbeck College’s Faculty of Continuing Education (FCE, then the Department for Extra-Mural Studies of the federal University) moved to the offices that it now occupies in numbers 26 and 25 Russell Square. Then, as now, FCE was the one of the largest and most active extra-mural departments of any British university, with an enormous range of courses covering virtually every subject taught in ‘internal’ university departments and many more besides 1. Some of these courses have, from time to time, used Russell Square as a learning resource. Many more staff and students alike have (along with thousands of local workers, tourists and residents) used the square’s gardens for relaxation and recovery, without reflecting on its origins or present significance. This Occasional Paper examines the past and present fabric of Russell Square (‘the Square’) as a resource for teaching and learning. It is a composite narrative assembled by FCE staff whose disciplines range from nature conservation through garden history and architectural history to social policy. It deconstructs the Square as an entity and attempts to decipher some of its ‘meanings’ that provide links between subjects taught within FCE. We hope that it will stimulate discussion about the way this single ‘place’ – our Square - can be ‘seen’ or interpreted in different ways for diverse purposes, and about the way that it can be used as a resource for teaching and learning across disciplines

    A Compiler Project for Translating a C Subset to SPARC Assembly Language

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    We present a complete description of a project for a compiler that translates a subset of the C programming language to SPARC assembler language. The project is suitable for a one semester undergraduate course on compilers and interpreters based on the text of Aho, Sethi, and Ullman, and has been used successfully in that context at the University of Pennsylvania. Output that facilitate scoring, and checkpoints for monitoring the students\u27 progress are integral to the project description

    Earth-Moon trajectories, 1965-70

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    Analytical model for generation of earth-moon trajectory analysis dat

    Appropriate targeting of artemisinin-based combination therapy by community health workers using malaria rapid diagnostic tests: findings from randomized trials in two contrasting areas of high and low malaria transmission in south-western Uganda.

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    OBJECTIVE: To compare the impact of malaria rapid diagnostic tests (mRDTs), used by community health workers (CHWs), on the proportion of children <5 years of age receiving appropriately targeted treatment with artemisinin-based combination therapy (ACT), vs. presumptive treatment. METHODS: Cluster-randomized trials were conducted in two contrasting areas of moderate-to-high and low malaria transmission in rural Uganda. Each trial examined the effectiveness of mRDTs in the management of malaria and targeting of ACTs by CHWs comparing two diagnostic approaches: (i) presumptive clinical diagnosis of malaria [control arm] and (ii) confirmatory diagnosis with mRDTs followed by ACT treatment for positive patients [intervention arm], with village as the unit of randomisation. Treatment decisions by CHWs were validated by microscopy on a reference blood slide collected at the time of consultation, to compare the proportion of children <5 years receiving appropriately targeted ACT treatment, defined as patients with microscopically-confirmed presence of parasites in a peripheral blood smear receiving artemether-lumefantrine or rectal artesunate, and patients with no malaria parasites not given ACT. RESULTS: In the moderate-to-high transmission area, ACT treatment was appropriately targeted in 79.3% (520/656) of children seen by CHWs using mRDTs to diagnose malaria, vs. 30.8% (215/699) of children seen by CHWs using presumptive diagnosis (P < 0.001). In the low transmission area, 90.1% (363/403) children seen by CHWs using mRDTs received appropriately targeted ACT treatment vs. 7.8% (64/817) seen by CHWs using presumptive diagnosis (P < 0.001). Low mRDT sensitivity in children with low-density parasitaemia (<200 parasites/μl) was identified as a potential concern. CONCLUSION: When equipped with mRDTs, ACT treatments delivered by CHWs are more accurately targeted to children with malaria parasites. mRDT use could play an important role in reducing overdiagnosis of malaria and improving fever case management within iCCM, in both moderate-to-high and low transmission areas. Nonetheless, missed treatments due to the low sensitivity of current mRDTs in patients with low parasite density are a concern. For community-based treatment in areas of low transmission and/or non-immune populations, presumptive treatment of all fevers as malaria may be advisable, until more sensitive diagnostic assays, suitable for routine use by CHWs in remote settings, become available

    NIMBY, YIMBY, or something else? Geographies of public perceptions of shale gas development in the Marcellus Shale

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    Much research exists on how social-psychological factors (e.g. political ideology), proximity to development, and contextual factors (e.g. state in which one resides) drive public attitudes toward various types of energy development. Yet, scholars have only recently begun to explore how these factors interact to create unique geographies of perception that defy the simplistic explanations suggested by not-in-my-backyard or yes-in-my-backyard labels. Using precisely geocoded well and survey data, we explore the interplay of political ideology, proximity and place in the context of public attitudes toward unconventional oil and natural gas development (UOGD) in the Marcellus Shale region of southern New York and northern Pennsylvania. For our full sample and similar to findings from recent national surveys on attitudes toward energy development, we found that respondents closer to UOGD were more supportive of it, a relationship that was moderated by political ideology with liberals or moderates located closer to UOGD more supportive than those located further away. However, when we examined these moderation effects within states, a different story emerged. For New York respondents, proximity did not appear to have a differential effect on conservatives vs. liberals/moderates. However, for Pennsylvania respondents, we observed opposing effects: conservatives were more supportive further away from development, while liberals/moderates were more supportive closer to development. Our results thus both reaffirm and challenge existing scholarship, highlighting the potential for middle range theorizing about geographies of perception in energy development

    The drag on a microcantilever oscillating near a wall

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    Motivated by devices such as the atomic force microscope, we compute the drag experienced by a cylindrical body of circular or rectangular cross-section oscillating at small amplitude near a plane wall. The body lies parallel to the wall and oscillates normally to it; the body is assumed to be long enough for the dominant flow to be two-dimensional. The flow is parameterized by a frequency parameter γ² (a Strouhal number) and the wall–body separation Δ (scaled on body radius). Numerical solutions of the unsteady Stokes equations obtained using finite-difference computations in bipolar coordinates (for circular cross-sections) and boundary-element computations (for rectangular cross-sections) are used to determine the drag on the body. Numerical results are validated and extended using asymptotic predictions (for circular cylinders) obtained at all extremes of (γ, Δ)-parameter space. Regions in parameter space for which the wall has a significant effect on drag are identified.R. J. Clarke, S. M. Cox, P. M. Williams and O. E. Jense

    Cost-effectiveness analysis of malaria rapid diagnostic tests for appropriate treatment of malaria at the community level in Uganda.

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    In Sub-Saharan Africa, malaria remains a major cause of morbidity and mortality among children under 5, due to lack of access to prompt and appropriate diagnosis and treatment. Many countries have scaled-up community health workers (CHWs) as a strategy towards improving access. The present study was a cost-effectiveness analysis of the introduction of malaria rapid diagnostic tests (mRDTs) performed by CHWs in two areas of moderate-to-high and low malaria transmission in rural Uganda. CHWs were trained to perform mRDTs and treat children with artemisinin-based combination therapy (ACT) in the intervention arm while CHWs offered treatment based on presumptive diagnosis in the control arm. Data on the proportion of children with fever 'appropriately treated for malaria with ACT' were captured from a randomised trial. Health sector costs included: training of CHWs, community sensitisation, supervision, allowances for CHWs and provision of mRDTs and ACTs. The opportunity costs of time utilised by CHWs were estimated based on self-reporting. Household costs of subsequent treatment-seeking at public health centres and private health providers were captured in a sample of households. mRDTs performed by CHWs was associated with large improvements in appropriate treatment of malaria in both transmission settings. This resulted in low incremental costs for the health sector at US3.0perappropriatelytreatedchildinthemoderate−to−hightransmissionarea.HigherincrementalcostsatUS3.0 per appropriately treated child in the moderate-to-high transmission area. Higher incremental costs at US13.3 were found in the low transmission area due to lower utilisation of CHW services and higher programme costs. Incremental costs from a societal perspective were marginally higher. The use of mRDTs by CHWs improved the targeting of ACTs to children with malaria and was likely to be considered a cost-effective intervention compared to a presumptive diagnosis in the moderate-to-high transmission area. In contrast to this, in the low transmission area with low attendance, RDT use by CHWs was not a low cost intervention
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