1,175 research outputs found

    A study of community development needs and morale among Africans in a non-farm rural employee community in Natal

    Get PDF

    Treatment for hepatorenal syndrome in people with decompensated liver cirrhosis: a network meta-analysis

    Get PDF
    This is a protocol for a Cochrane Review (Intervention). The objectives are as follows: To compare the benefits and harms of different treatments of hepatorenal syndrome in people with decompensated liver cirrhosis

    Comments on Condensates in Non-Supersymmetric Orbifold Field Theories

    Get PDF
    Non-supersymmetric orbifolds of N=1 super Yang-Mills theories are conjectured to inherit properties from their supersymmetric parent. We examine this conjecture by compactifying the Z_2 orbifold theories on a spatial circle of radius R. We point out that when the orbifold theory lies in the weakly coupled vacuum of its parent, fractional instantons do give rise to the conjectured condensate of bi-fundamental fermions. Unfortunately, we show that quantum effects render this vacuum unstable through the generation of twisted operators. In the true vacuum state, no fermion condensate forms. Thus, in contrast to super Yang-Mills, the compactified orbifold theory undergoes a chiral phase transition as R is varied.Comment: 10 Pages. Added clarifying comments, computational steps and a nice pretty pictur

    Rapid X-ray Variability of Seyfert 1 Galaxies

    Full text link
    The rapid and seemingly random fluctuations in X-ray luminosity of Seyfert galaxies provided early support for the standard model in which Seyferts are powered by a supermassive black hole fed from an accretion disc. However, since EXOSAT there has been little opportunity to advance our understanding of the most rapid X-ray variability. Observations with XMM-Newton have changed this. We discuss some recent results obtained from XMM-Newton observations of Seyfert 1 galaxies. Particular attention will be given to the remarkable similarity found between the timing properties of Seyferts and black hole X-ray binaries, including the power spectrum and the cross spectrum (time delays and coherence), and their implications for the physical processes at work in Seyferts.Comment: To appear in From X-ray Binaries to Quasars: Black Hole Accretion on All Mass Scales, ed. T. J. Maccarone, R. P. Fender, and L. C. Ho (Dordrecht: Kluwer

    Aspirin moderates the association between cardiovascular risk, brain white matter hyperintensity total lesion volume and processing speed in normal ageing

    Get PDF
    ABC1936 was funded (1999-2009) by the Biotechnology and Biological Sciences Research Council, Scottish Health Department, Wellcome Trust, Medical Research Council, Alzheimer Research UK, Alzheimer Society and University of Aberdeen Development Trust. This work was supported by the Elphinstone Scholarship, Roland Sutton Academic Trust, the Morningfield Association and the Rabin Ezra Scholarship Trust, which provides salary cost and consumables to MK.Peer reviewedPostprin

    Magnetic Resonance Imaging of Plantar Plate Rupture

    Full text link
    Degenerative plantar plate failure is an under-recognized cause of lesser metatarsalgia. We performed magnetic resonance imaging (MRI) with a small receiver coil in 13 patients in whom plantar plate ruptures of the second or third metatarsophalangeal joint were clinically suspected. In eight patients, MRI showed focal hyperintensity in the plantar plate that was interpreted as a rupture of the plate. Ruptures were confirmed in all five patients who underwent an operative procedure to treat the unstable, painful metatarsophalangeal joint. MRI is a noninvasive technique that can visualize plantar plate abnormalities and aid the clinical evaluation of problematic lesser metatarsalgia
    • 

    corecore