1,721,098 research outputs found

    Bacteremia in Cardiac Surgery Patients with Heparin-Induced Thrombocytopenia

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    We have read with great interest the paper "Characterization of hospitalized cardiovascular patients with suspected heparin-induced thrombocytopenia" by Stoll and co-workers [1] and we found it very important with a view to clinical prevention

    R-current three-point functions in 4d N = 1 superconformal theories

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    In 4d N = 1 superconformal field theories (SCFTs) the R-symmetry current, the stress-energy tensor, and the supersymmetry currents are grouped into a single object, the Ferrara-Zumino multiplet. In this work we study the most general form of three-point functions involving two Ferrara-Zumino multiplets and a third generic multiplet. We solve the constraints imposed by conservation in superspace and show that non-trivial solutions can only be found if the third multiplet is R-neutral and transforms in suitable Lorentz representations. In the process we give a prescription for counting independent tensor structures in superconformal three-point functions. Finally, we set the Grassmann coordinates of the Ferrara-Zumino multiplets to zero and extract all three-point functions involving two R-currents and a third conformal primary. Our results pave the way for bootstrapping the correlation function of four R-currents in 4d N = 1 SCFTs

    Energy drinks and heart damage in young people

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    Dear Editor, We have read with great interest the case report “Energy Drink-Associated Cardiomyopathy after Excessive Consumption: A Case Report” by Uyanik et al1 and found it significant concerning cardiac damage induced by caffeinated beverage consumption among young people. This case report describes a 24-year-old man presenting a left ventricular ejection fraction of 25% with global left ventricular hypokinesia and dilated left ventricular dimensions

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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