1,781 research outputs found

    "Cloud" health-care workers.

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    Certain bacteria dispersed by health-care workers can cause hospital infections. Asymptomatic health-care workers colonized rectally, vaginally, or on the skin with group A streptococci have caused outbreaks of surgical site infection by airborne dispersal. Outbreaks have been associated with skin colonization or viral upper respiratory tract infection in a phenomenon of airborne dispersal of Staphylococcus aureus called the "cloud" phenomenon. This review summarizes the data supporting the existence of cloud health-care workers

    Hierarchical Species Sampling Models

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    This paper introduces a general class of hierarchical nonparametric prior distributions. The random probability measures are constructed by a hierarchy of generalized species sampling processes with possibly non-diffuse base measures. The proposed framework provides a general probabilistic foundation for hierarchical random measures with either atomic or mixed base measures and allows for studying their properties, such as the distribution of the marginal and total number of clusters. We show that hierarchical species sampling models have a Chinese Restaurants Franchise representation and can be used as prior distributions to undertake Bayesian nonparametric inference. We provide a method to sample from the posterior distribution together with some numerical illustrations. Our class of priors includes some new hierarchical mixture priors such as the hierarchical Gnedin measures, and other well-known prior distributions such as the hierarchical Pitman-Yor and the hierarchical normalized random measures

    No persistent effect of intravenous immunoglobulins in patients with narcolepsy with cataplexy

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    We report on four patients with narcolepsy with cataplexy (NC), who were treated with high-dose intravenous immunoglobulins (IVIg). Although in some patients transient effects were seen of both objective (multiple sleep latency test and maintenance of wakefulness test) and subjective symptoms (Epworth Sleepiness Scale and frequency of cataplexy), these effects lasted at the most for a few weeks and did not persist. Our report challenges the recent observations of a favorable and persistent effect of IVIg in NC patient

    Kinetic models with randomly perturbed binary collisions

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    We introduce a class of Kac-like kinetic equations on the real line, with general random collisional rules, which include as particular cases models for wealth redistribution in an agent-based market or models for granular gases with a background heat bath. Conditions on these collisional rules which guarantee both the existence and uniqueness of equilibrium profiles and their main properties are found. We show that the characterization of these stationary solutions is of independent interest, since the same profiles are shown to be solutions of different evolution problems, both in the econophysics context and in the kinetic theory of rarefied gases

    Why and when do family firms invest less in talent management? The suppressor effect of risk aversion

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    none4siThis article explores the complex relationship between family firms and talent management practices. We use an international sample of medium-sized manufacturing firms to show that the relationship between family-owned firms and investment in talent management practices is mediated by the firm’s level of risk aversion, which is, in turn, moderated by industry competition. Risk-averse family-owned firms tend to invest less in talent management practices when industry competition is weak. In contrast, when competition increases, family-owned firms tend to invest in talent as much as non-family-owned firms do.openBasco, Rodrigo; Bassetti, Thomas; Dal Maso, Lorenzo; Lattanzi, NicolaBasco, Rodrigo; Bassetti, Thomas; Dal Maso, Lorenzo; Lattanzi, Nicol

    Total Synthesis of 1”- and 2”-Hydroxycannabidiol Metabolites

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    Herein we report a new practical and efficient multistep syntheses of 1”- and 2”-hydroxycannabidiol metabolites. Both products and intermediates were fully characterized, and the target metabolites were produced in good overall yields

    Efficacy and Safety of Meropenem\u2013Vaborbactam Versus Best Available Therapy for the Treatment of Carbapenem-Resistant Enterobacteriaceae Infections in Patients Without Prior Antimicrobial Failure: A Post Hoc Analysis

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    open5siIntroduction: Infections due to Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacteriaceae are associated with increased morbidity and high mortality. Meropenem–vaborbactam (MV) is a novel ÎČ-lactam/ÎČ-lactamase inhibitor combination active against KPC-producing Enterobacteriaceae. The aim of this post hoc analysis of the TANGO-II randomized controlled trial was to assess the efficacy of MV versus best available therapy (BAT) in the subgroup of patients without prior antimicrobial failure. Methods: The primary outcome measure was clinical cure at the test of cure (TOC). Secondary outcome measures included (1) clinical cure at the end of therapy (EOT), (2) microbiological cure at TOC, (3) microbiological cure at EOT, and (4) 28-day all-cause mortality. Results: First-line MV was associated with a 42.9% absolute increase in clinical cure rate at TOC (95% confidence intervals [CI] 13.7–72.1) in comparison with first-line BAT. A 49.3% absolute increase in clinical cure rate at EOT (95% CI 20.8–77.7), a 42.6% absolute increase in microbiological cure rate at EOT (95% CI 13.4–71.8), and a 36.2% absolute increase in microbiologic cure rate at TOC (95% CI 5.9–66.6) were also observed, in addition to a 29.0% absolute reduction in mortality (95% CI − 54.3 to − 3.7). Overall, fewer adverse events were observed in the MV group than in the BAT group. Conclusion: MV was superior to BAT in the subgroup of patients with serious carbapenem-resistant Enterobacteriaceae (CRE) infections and no prior antimicrobial failure, with very high rates of clinical success, and was well tolerated. Post approval and real-world studies remain essential to clearly define the most appropriate population for early, empirical MV coverage, in accordance with antimicrobial stewardship principles. Funding: The Medicines Company.openBassetti M.; Giacobbe D.R.; Patel N.; Tillotson G.; Massey J.Bassetti, M.; Giacobbe, D. R.; Patel, N.; Tillotson, G.; Massey, J
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