2,812 research outputs found

    CLINICAL AND MORPHOLOGICAL PARRALLELS IN THE COURSE OF RESPIRATORY SARCOIDOSIS

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    Sarcoidosis is a systemic disease characterized by the development of chronic immune inflammation and formation of granulomas. It is important to know clinical, morphological and immunologic variants of the course of this disease in order to investigate the pathomorphologic parameters of the granuloma.Of late negative trends have been observed in the changes of sarcoidosis pathomorphology. Due to the above it is important to investigate predictors for the course of this disease, including specific parameters of granulematous inflammatory process in various clinical variants not only from the point of view of diagnostics but further management tactics for those suffering from this disease

    Формирование легочной гипертензии у больных циррозом печени

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    The aim of the study was to ventilation function of lungs and echocardiography activities right and left ventricular, blood flow disorders in pulmonary artery in confront with clinical pictures and activities portal haemodynamics in patients with a liver cirrhosis. Established, that change structural-functional activities right and left parts of heart in a liver cirrhosis depend on to a great extent, to a weight of disease and to be accompanied raorganisation of a central haemodynamics and forming pulmonary arterial hypertension. Pulmonary arterial hypertension in close association with portal circulation of the blood and represented not rare complication of a liver cirrhosis.Изучены показатели вентиляционной функции легких и эхокардиографические показатели функции правого и левого желудочков, а также кровотока в легочной артерии (ЛА) в сопоставлении с клинической картиной и показателями портальной гемодинамики у больных циррозом печени (ЦП). Установлено, что изменение структурно-функциональных показателей правого и левого отделов сердца при ЦП зависит от степени тяжести заболевания и сопровождается перестройкой центральной гемодинамики, что способствует формированию легочной гипертензии (ЛГ). ЛГ тесно связана с портальным кровотоком и является нередким осложнением ЦП

    Constraints on the χ_(c1) versus χ_(c2) polarizations in proton-proton collisions at √s = 8 TeV

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    The polarizations of promptly produced χ_(c1) and χ_(c2) mesons are studied using data collected by the CMS experiment at the LHC, in proton-proton collisions at √s=8  TeV. The χ_c states are reconstructed via their radiative decays χ_c → J/ψγ, with the photons being measured through conversions to e⁺e⁻, which allows the two states to be well resolved. The polarizations are measured in the helicity frame, through the analysis of the χ_(c2) to χ_(c1) yield ratio as a function of the polar or azimuthal angle of the positive muon emitted in the J/ψ → μ⁺μ⁻ decay, in three bins of J/ψ transverse momentum. While no differences are seen between the two states in terms of azimuthal decay angle distributions, they are observed to have significantly different polar anisotropies. The measurement favors a scenario where at least one of the two states is strongly polarized along the helicity quantization axis, in agreement with nonrelativistic quantum chromodynamics predictions. This is the first measurement of significantly polarized quarkonia produced at high transverse momentum
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