1,721,213 research outputs found
Psychornetric evaluation of the Italian version of the staff attitudes to nutritional nursing geriatric care scale (SANN-G scale)
No full textAtypical lymphoid proliferation in capillary hemangioma: A finding related to bacterial infection?
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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
Expression of CD133 correlates with tumor stage, lymph node metastasis and recurrence in oral Squamous cell carcinoma
No full textObjective: CD133 is a pentaspan membrane protein expressed by the so-called cancer stem cells (CSC) in the majority of human cancers. The aim of this study was to analyze CD133 expression levels in specimens of oral cancer and to evaluate its relation with disease evolution. Methods: Expression of the CD133 protein was evaluated by immunostaining in a series of oral squamous cell carcinoma (OSCC) and its relation with traditional prognostic indicators and the clinical outcome of patients was analyzed. Results: CD133 expression was highly variable amongst different samples with a median percentage of positive cells of 5 (range 0 - 80; mean = 11) and CD133 staining was not detectable in tumor cells in 29 (43%) cases. No correlation was observed with age at diagnosis, gender and grading while a significant correlation was observed with tumor stage. Kaplan-Meier curves of disease-free survival displayed a significant separation between the negative and positive groups of patients (p = 0.001 by log-rank test) but CD133 staining did not confirm to be an independent predictor of clinical outcome in a multivariate analyses. Conclusion: Expression of CD133 was detectable in the majority of OSCC samples and correlated significantly with tumor stage and the clinical outcome of patients in terms of disease-free survival. Further studies are warranted on a larger series of cases to elucidate the role of CD133 in the development and progression of OSCC and its suitability as a prognostic biomarker. © 2014 Reggiani Bonetti L, et al
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
Histopathology of non-IBD Colitis. A practical approach from the Italian group for the study of the gastrointestinal tract (GIPAD)
Full text linkNon-IBD colitides (NIBDC) are intestinal diseases clinically and endoscopically overlapping with Inflammatory Bowel Diseases (IBD), sometimes with a similar histological picture. NIBDC include entities such as infectious colitis, ischemic colitis, pseudomembranous colitis, eosinophilic colitis, autoimmune enterocolitis, segmental colitis associated with diverticulosis, drug-induced colitis, radiation-induced colitis, diversion colitis, and microscopic colitis, this last including two entities: collagenous and lymphocytic colitis. The knowledge of the most useful histological features and the main clinical data for each entity is mandatory in daily clinical practice, for correct pathological diagnosis and clinical management
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