1,721,018 research outputs found
Il rischio da sovraccarico biomeccanico dell'arto superiore: analisi di prevalenza delle WMDS nelle aziende agricole del settore vitivinicolo e nel settore terziario
No full textStudio osservazionale sull’assunzione di bevande alcoliche in un gruppo di operai palermitani del settore dell’edilizia
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
Laryngopathies by vocal abuse: clinical multidisciplinary evaluation in workers at risk
Full text linkBackground: Attention to vocal pathologies in occupational categories that provide for a continuous use and often abuse of phonation has grown in recent decades.
Objectives: Aim of this study was to evaluate presence of laryngopathies by vocal abuse in subjects occupationally exposed, namely teachers and singers, compared with non-exercising jobs at risk, also checking if self-assessment tests and spectrographic signals could be predictive of disease observed with endoscopy.
Methods: We therefore proceeded to enroll on a voluntary basis, after information campaign, subjects, which in addition to an ananmnestic framework, underwent a multidisciplinary evaluation, which included, besides a fiber optic laryngoscopic examination, the preventive administration of self report test on perception the quality of their voice, or the voice Handicap Index for professional speaking voice and not exposed to risk, and the Singing Handicap Index for the singers, and also the spectrographic analysis of voice output (spoken or sung).
Results: The results, in addition to confirming the guessed higher prevalence of disease in voice professionals, provide the opportunity to integrate the common medical diagnostic investigations, such as fiber optic laryngoscopy, with self report test and spectrographic survey, which showed a significant relationship with endoscopic data. In fact, the results confirmed that the VHI and the MSHI, integrated with the spectrographic test can be a valuable tool to assess the implications of bio-psycho-social aspects of professional and non-voice disorders, contributing significantly to validate the provisional diagnosis of diseas.
Conclusions: This study recommends not only the implementation of vocal education during the training of teacher to prepare the vocal professional user, but also a multidisciplinary approach to voice disorders in occupational exposure population
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