1,720,970 research outputs found
Clinical and subthreshold eating disorders: case detection in adolescent schoolgirls.
No full textThe point prevalence of eating disorders was investigated in schoolgirls from lower socio-economic classes and a method of case detection was tested. A two-stage procedure (self-report measures and interviews) was followed. All girls meeting at least one of the following three criteria were recruited as possible cases: EAT > or = 30, BMI 24 and EAT > or = 20. The Mann-Whitney's two-tailed test and the chi-square test were used to assess the significance of differences between the possible cases and the others and between the false positives and the cases. A diagnosis of eating disorder was made for 24 subjects (8.1%): 5 (1.7%) with bulimia nervosa and 19 (6.4%) with eating disorders not otherwise specified (EDNOS). Of the 24 girls with eating disorders only 16 had high EAT40 scores (> or = 30). The other 8 cases were identified by the help of other criteria that proved to be useful. Furthermore we found data on five self-report instruments (EAT40, EDI, SCANS, SCL90, SEI). On almost all the scales, the possible cases obtained scores significantly different from the others. On the contrary, we did not find any instrument able to discriminate between false positives and cases
Rilevazione catamnestica delle consizioni psichiche e del vissuto interpersonale in un gruppo di pazienti affetti da morbo di Hodgkin dopo un anno dalla comunicazione della diagnosi. In coll. con A.P. Anselmo, A.M. De Luca, R. Gorio, A. Petrilli , G. Vetrone.
No full textConcurrent validity of the Disordered Eating Questionnaire (DEQ) with the Eating Disorder Examination (EDE) clinical interview in clinical and non clinical samples
No full textThe aim of the present study was to evaluate the concurrent validity, specificity and sensitivity of the Disordered Eating Questionnaire (DEQ). The DEQ is a brief questionnaire (24 items), that can be used for epidemiological screenings. It addresses face valid questions to evaluate frequency and intensity of disordered eating attitudes and behaviors over a time frame of three months. The study was conducted using a cross-sectional design. The DEQ was completed by 190 eating disordered patients (73 patients with Anorexia, 48 with Bulimia, 11 with Binge Eating Disorder, 48 with Eating Disorders Not Otherwise Specified, 10 recovered patients) and 88 healthy controls. In the whole group, DEQ scores were highly correlated with the scores of the Eating Disorder Examination (EDE 12.0D). Sensitivity and specificity were evaluated. In the female subsample, the ROC curves indicate that a cut-off score of 30 allows to obtain a sensitivity of 82% and a specificity of 68%. A formative approach of Structural Equationing Model confirm the construct validity of the instrument. The DEQ confirm to be a valid and reliable instrument, whose sensitivity and specificity is comparable to that of the EAT-40 even though it has fewer items
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
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