276 research outputs found

    Angular distributions and energy spectra of electrons transmitted through and reflected from elemental foils

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    Spectrometric determination of angular distributions and energy spectra of electrons transmitted through and reflected from carbon, aluminum, copper, silver, and gold foil

    Surviving Sepsis Campaign: International guidelines for management of severe sepsis and septic shock: 2008

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    SCOPUS: ar.jinfo:eu-repo/semantics/publishe

    Effects of COVID-19 and Social Distancing on Rhinovirus Infections and Asthma Exacerbations

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    Since their discovery in the 1950s, rhinoviruses (RVs) have been recognized as a major causative agent of the “common cold” and cold-like illnesses, accounting for more than 50% of upper respiratory tract infections. However, more than that, respiratory viral infections are responsible for approximately 50% of asthma exacerbations in adults and 80% in children. In addition to causing exacerbations of asthma, COPD and other chronic lung diseases, RVs have also been implicated in the pathogenesis of lower respiratory tract infections including bronchiolitis and community acquired pneumonia. Finally, early life respiratory viral infections with RV have been associated with asthma development in children. Due to the vast genetic diversity of RVs (approximately 160 known serotypes), recurrent infection is common. RV infections are generally acquired in the community with transmission occurring via inhalation of aerosols, respiratory droplets or fomites. Following the outbreak of coronavirus disease 2019 (COVID-19), exposure to RV and other respiratory viruses was significantly reduced due to social-distancing, restrictions on social gatherings, and increased hygiene protocols. In the present review, we summarize the impact of COVID-19 preventative measures on the incidence of RV infection and its sequelae

    Phylogeographic parallelism: Concordant patterns in closely related species illuminate underlying mechanisms in the historically glaciated Tasmanian landscape

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    Knowledge of species responses to past environmental change provides a basis to predict and mitigate the outcomes of future environmental change. While paradigm studies of comparative phylogeography have surveyed dissimilar taxa as a means to identify generalities of species responses to past environmental change, the fact that such taxa are dissimilar also raises the chances that any shared patterns reflect coincident responses from different processes (‘phylogeographic convergence’). Here we advocate for and demonstrate the value of examining closely related, ecologically similar co‐distributed species in comparative phylogeographic studies aimed at inferring the environmental processes driving distributional change. Closely related species with similar environmental requirements represent valid phylogeographic replicates, meaning that shared historical distributional responses can more confidently be attributed to the operation of the same process (‘phylogeographic parallelism’)
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