1,720,992 research outputs found

    Ventilator-associated pneumonia

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    Cause, strategie di prevenzione e trattamento delle infezioni polmonari associate alla ventilazione meccanica

    Intraoperative fluid administration and severity of the clinical condition

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    Fluid overload has been recently suggested to influence morbidity. The aim of this study was to investigate the relationship between the amount of fluid given in the operative room and the severity of illness, which is known to be different in scheduled and emergency surgery. We prospectively studied 78 surgical patients consecutively admitted to our Intensive Care Unit (ICU). We collected the following information: age and weight of the patient, amount of crystalloids, colloids and blood given in the operative room, length of the surgical procedure, SAPS, APACHE II, serum albumin, IUC length of stay, ICU and hospital mortality rate. The anaesthetist, who was responsible for the clinical decision in the operative room, was unaware of the study. The patients were divided in two groups: ELE, 59 patients admitted to ICU after scheduled surgery, and URG, 19 patients admitted after emergency surgery. Age, weight, number of patients operated on abdomen, length of surgical procedure were similar in both groups, but also the amount of fluid given in the operative room were the same (crystalloids 10.1 +/- 4.3 ml/kg/h in ELE vs 10.7 +/- 3.9 ml/kg/h in URG and total amount of fluid 12.1 +/- 5.5 ml/kg/h in ELE vs 14.5 +/- 5.7 ml/kg/h in URG)

    Severe asthma and ARDS triggered by acute short-term exposure to commonly used cleaning detergents

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    This report presents a case of severe asthmatic attack and adult respiratory distress syndrome, which occurred in an asthmatic subject following acute short-term exposure to commonly used cleaning detergents. Premorbid lung conditions, i.e. asthma and airway hyperresponsiveness, might have been risk factors for illness severity but not for persistent complaints. This case report indicates that nonindustrial exposures due to household product misuse, especially to mixing cleaning agents, may cause adult respiratory distress syndrome and not only irritant-induced asthma

    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

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods
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