47 research outputs found

    Measurement of the B-+/- Meson Nuclear Modification Factor in Pb-Pb Collisions at root s(NN)=5.02 TeV

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    Peer reviewe

    Search for top-squark pair production in the single-lepton final state in pp collisions at

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    This paper presents a search for the pair production of top squarks in events with a single isolated electron or muon, jets, large missing transverse momentum, and large transverse mass. The data sample corresponds to an integrated luminosity of 19.5 fb−1 of pp collisions collected in 2012 by the CMS experiment at the LHC at a center-of-mass energy of s=8 TeV\sqrt{s}=8~\mathrm{TeV}. No significant excess in data is observed above the expectation from standard model processes. The results are interpreted in the context of supersymmetric models with pair production of top squarks that decay either to a top quark and a neutralino or to a bottom quark and a chargino. For small mass values of the lightest supersymmetric particle, top-squark mass values up to around 650 GeV are excluded

    The Thoracic Duct

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    Chylothorax and other pleural effusions

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    A pleural effusion is the accumulation of fluid in the pleural space, and may represent chyle, pus, blood, transudate or other fluid. This chapter covers the pathophysiology, presentation, diagnosis and management of pleural effusions in neonates, with particular reference to the accumulation of chyle. Chylothorax is the commonest explanation for a pleural effusion in the first few days of life. It may be congenital or acquired with numerous causes. Laboratory fluid analysis, ultrasonography and plain radiography are the most important diagnostic modalities. Once diagnosed, an initial period of intestinal rest and parenteral nutrition is warranted accompanied by pleural drainage, followed by a low fat enteral feeds containing medium chain triglycerides. Nevertheless, emerging pharmacological and interventional therapies are being introduced, but surgery is reserved for when medical management fails
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