1,721,163 research outputs found

    Introduction

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    It is the editors' Introduction to the vol. Insights into the History of Linguistics. Selected Papers from ICHoLS XV ((Milan, 23 – 27 August 2021

    Study on the effectiveness of a nifedipine gel for treatment of Raynaud?s phenomenon

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    The aim of this study is to evaluate the efficacy of a nifedipine gel in patients with primary or secondary Raynaud?s phenomenon. Photopletismography was the instrumental examination test used to evaluate recovery time (time necessary for recuperation of normal capillary circulation) in 17 patients with primary or secondary Raynaud?s phenomenon before and after the application of the gel. It emerged that of the 17 patients who used the gel, in 3 cases the recovery time was reduced, in 9 cases the recovery time was cancelled (no spasm occurred), in 5 cases the recovery time was not modified. Therefore, in more than 70 percent of patients the drug had a positive effect. Besides, 50 percent of the patients referred an improvement of the subjective symptomatology with reduction of cooling, torpidity, ache and paresthesias of the fingers. The results obtained, even if related to a restricted number of patients and to a brief interval of time, show the effectiveness of this drug in patients with primary or secondary Raynaud?s phenomenon. We believe that these results, presented here for the first time, are important for investigators involved in the study of Raynaud?s disease

    Raynaud′s phenomenon among men and women with noise-induced hearing loss in relation to vibration exposure

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    Raynaud′s phenomenon is characterized by constriction in blood supply to the fingers causing finger blanching, of white fingers (WF) and is triggered by cold. Earlier studies found that workers using vibrating hand-held tools and who had vibration-induced white fingers (VWF) had an increased risk for hearing loss compared with workers without VWF. This study examined the occurrence of Raynaud′s phenomenon among men and women with noise-induced hearing loss in relation to vibration exposure. All 342 participants had a confirmed noise-induced hearing loss medico legally accepted as work-related by AFA Insurance. Each subject answered a questionnaire concerning their health status and the kinds of exposures they had at the time when their hearing loss was first discovered. The questionnaire covered types of exposures, discomforts in the hands or fingers, diseases and medications affecting the blood circulation, the use of alcohol and tobacco and for women, the use of hormones and whether they had been pregnant. The participation rate was 41% (n = 133) with 38% (n = 94) for men and 50% (n = 39) for women. 84 men and 36 women specified if they had Raynaud′s phenomenon and also if they had used hand-held vibrating machines. Nearly 41% of them had used hand-held vibrating machines and 18% had used vibrating machines at least 2 h each workday. There were 23 men/6 women with Raynaud′s phenomenon. 37% reported WF among those participants who were exposed to hand-arm vibration (HAV) and 15% among those not exposed to HAV. Among the participants with hearing loss with daily use of vibrating hand-held tools more than twice as many reports WF compared with participants that did not use vibrating hand-held tools. This could be interpreted as Raynaud′s phenomenon could be associated with an increased risk for noise-induced hearing loss. However, the low participation rate limits the generalization of the results from this study

    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

    Gli elementi del racconto

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    Che cos’è un racconto? E’ una domanda a cui è facile rispondere basandosi sull’esperienza, perché ognuno di noi ha a che fare quotidianamente con delle storie che gli vengono narrate dalle persone e dai mass media. Più difficile individuare tutti gli elementi che ci fanno percepire una serie di affermazioni come un racconto, indipendentemente dal modo in cui le affermazioni stesse sono espresse (a voce, scritte o per immagini e/o su diversi media)

    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
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