1,720,982 research outputs found

    Emerging role of Mycoplasma pneumoniae in children with acute pharyngitis

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    In order to define the role, the risk factors, and the clinical and laboratory characteristics of Mycoplasma pneumoniae infection in children with pharyngitis, 184 patients with acute non-streptococcal pharyngitis (102 males; median age, 5.33 years) were studied. Acute Mycoplasma pneumoniae infection was demonstrated in 44 (23.9%) patients. A history of recurrent episodes of pharyngitis (defined as at least 3 acute episodes of pharyngitis in the 6 months preceding enrollment) appeared to be the more useful parameter for differentiating Mycoplasma pneumoniae pharyngitis from non-streptococcal non- Mycoplasma pneumoniae pharyngitis ( P<0.05 in multivariate analysis). These data, which highlight the emerging role of Mycoplasma pneumoniae in acute pharyngitis, must be taken into account in the diagnosis and treatment of this clinical manifestation in childre

    Efficacy and tolerability of Creon for Children in infants and toddlers with pancreatic exocrine insufficiency caused by cystic fibrosis : an open-label, single-arm, multicenter study

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    Objectives: To evaluate the efficacy and safety of a pancreatic enzyme preparation specifically developed for infants and small children with cystic fibrosis (CF). Methods: Twelve patients with CF younger than 24 months with pancreatic exocrine insufficiency and a coefficient of fat absorption (CFA) less than 70% were treated with Creon for Children (Solvay Pharmaceuticals GmbH, Hannover, Germany) minimicrospheres for 8 weeks. The primary end point was the mean change from baseline in the CFA after 2 weeks of treatment, based on 72-hour fat balance assessments. Results: Two weeks' treatment with Creon for Children resulted in a significant increase in the mean CFA from 58.0% at baseline to 84.7% (P = 0.0013) in the full analysis sample. There was a significant reduction of mean stool fat (from 13.3 to 5.3 g/d; P = 0.001) and mean fecal energy loss (from 238.5 to 137.9 kJ/d; P = 0.018) at 2 weeks. Dietary fat intake did not change, whereas an improvement was observed in stool frequency and characteristics. Patient weight and height increased over 8 weeks of treatment. No serious adverse event was reported. Conclusions: Creon for Children was well tolerated and significantly decreased fat malabsorption in infants with pancreatic exocrine insufficiency due to CF

    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

    Author Index

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