1,885 research outputs found

    The Double Club evaluation : interim report

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    The Double Club evaluation

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    The Federal Child Nutrition Commodity Program: A Report on Nutritional Quality

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    Examines the types of food California schools order through the USDA Child Nutrition Commodity Program and how they affect the nutritional value of school meals. Includes policy recommendations for ensuring that meals meet nutritional guidelines

    Improved synchronous production of Plasmodium falciparum gametocytes in vitro.

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    The sexual stages of the Plasmodium falciparum life cycle are attractive targets for vaccines and transmission blocking drugs. Difficulties in culturing and obtaining large amounts of sexual stage P. falciparum parasites, particularly early stages, have often limited research progress in this area. We present a new protocol which simplifies the process of stimulating gametocytogenesis leading to improved synchronous gametocyte production. This new method can be adapted to enrich for early stage gametocytes (I and II) with a higher degree of purity than has previously been achieved, using MACS magnetic affinity columns. The protocol described lends itself to large scale culturing and harvesting of synchronous parasites suitable for biochemical assays, northern blots, flow cytometry, microarrays and proteomic analysis

    The stellar mass - size relation for cluster galaxies at z=1 with high angular resolution from the Gemini/GeMS multi-conjugate adaptive optics system

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    We present the stellar mass - size relation for 49 galaxies within the zz = 1.067 cluster SPT-CL J0546-5345, with FWHM \sim80-120 mas KsK_{\mathrm s}-band data from the Gemini multi-conjugate adaptive optics system (GeMS/GSAOI). This is the first such measurement in a cluster environment, performed at sub-kpc resolution at rest-frame wavelengths dominated by the light of the underlying old stellar populations. The observed stellar mass - size relation is offset from the local relation by 0.21 dex, corresponding to a size evolution proportional to (1+z)1.25(1+z)^{-1.25}, consistent with the literature. The slope of the stellar mass - size relation β\beta = 0.74 ±\pm 0.06, consistent with the local relation. The absence of slope evolution indicates that the amount of size growth is constant with stellar mass. This suggests that galaxies in massive clusters such as SPT-CL J0546-5345 grow via processes that increase the size without significant morphological interference, such as minor mergers and/or adiabatic expansion. The slope of the cluster stellar mass - size relation is significantly shallower if measured in HSTHST/ACS imaging at wavelengths blueward of the Balmer break, similar to rest-frame UV relations at zz = 1 in the literature. The stellar mass - size relation must be measured at redder wavelengths, which are more sensitive to the old stellar population that dominates the stellar mass of the galaxies. The slope is unchanged when GeMS KsK_s-band imaging is degraded to the resolution of KK-band HST/NICMOS resolution but dramatically affected when degraded to KsK_s-band Magellan/FourStar resolution. Such measurements must be made with AO in order to accurately characterise the sizes of compact, zz = 1 galaxies.Comment: 24 pages, 13 figures, 3 tables. Accepted for publication in MNRAS. Typos corrected, DOI adde

    Driving improvements in emerging disease surveillance through locally-relevant capacity strengthening

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    Emerging infectious diseases (EIDs) threaten the health of people, animals, and crops globally, but our ability to predict their occurrence is limited. Current public health capacity and ability to detect and respond to EIDs is typically weakest in low- and middle-income countries (LMICs). Many known drivers of EID emergence also converge in LMICs. Strengthening capacity for surveillance of diseases of relevance to local populations can provide a mechanism for building the cross-cutting and flexible capacities needed to tackle both the burden of existing diseases and EID threats. A focus on locally relevant diseases in LMICs and the economic, social, and cultural contexts of surveillance can help address existing inequalities in health systems, improve the capacity to detect and contain EIDs, and contribute to broader global goals for development

    The Double Club Evaluation : Research Report

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    Double Club (DC) is an in-school extension of the Playing for Success (PfS) programme, working with underachieving pupils in Key Stage 3 to improve attainment, particularly in literacy and numeracy. It provides an innovative ‘double experience’ that combines classroom education with coaching in football or another sport. Young people attend at least twice a week in groups of approximately 15. The main aims of this evaluation were to assess the effectiveness of the Double Club programme, to identify good practice and to provide evidence on how best to operationalise DCs in a wider roll out. The first strand of the evaluation presented findings from case-study visits to five DCs. Four of these DCs were selected as examples of ‘good practice’ (all of which were football-related) and the fifth was selected as an example of a DC which based its activities on a sport other then football. The second strand of the evaluation provided an analysis of the impact of DC on pupil attainment, comparing the KS3 attainment of young people who had attended DC with the KS3 attainment of similar young people who had not attended, using a form of statistical analysis called multi-level modelling
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