1,720,954 research outputs found
Dermopatie professionali: analisi della casistica diagnosticata presso l’Istituto Scientifico di Pavia della Fondazione Maugeri nel periodo gennaio 1996 – aprile 2002
No full textLe dermopatie costituiscono una percentuale notevole (almeno il 10-30%) delle malattie professionali. I compiti della medicina del lavoro nei confronti di tali patologie vanno dalla definizione della diagnosi, alla identificazione degli agenti e delle modalità d’esposizione responsabili, all’adozione di misure terapeutiche e preventive, ad adempimenti di natura medico-legale. In tale contesto, abbiamo ritenuto utile svolgere un’indagine retrospettiva sulle dermopatie occupazionali diagnosticate presso il nostro Istituto negli ultimi anni.
I nostri dati indicano che, nonostante alcuni progressi compiuti negli ultimi anni in ambito preventivo, le dermopatie professionali continuano ad essere di frequente riscontro nella pratica clinica. Nella presente casistica, tali malattie sono state diagnosticate soprattutto nelle donne e in soggetti attorno ai 40 anni; nessuna età lavorativa è risultata tuttavia risparmiata.
La casistica conferma l’elevata frequenza in Italia di allergopatie cutanee professionali (DAC, orticaria da contatto, angioedema), già segnalata in passato. Queste malattie possono presentarsi in associazione tra loro e/o con asma bronchiale
Sensibilizzazione epicutanea a metalli e dermatite allergica da contatto: analisi di una casistica ambulatoriale
No full textWe have retrospectively analyzed the clinical and anamnestic features of 233 out-patients (197 females and 36 males; mean age: 33 years; SD: +/- 13.3) with epicutaneous sensitization to metals, who had been examined at the department of allergology of our institution during one year. Among females, nickel sulphate was the metallic salt which most frequently resulted positive at patch testing (87.8% of cases), followed by cobalt chloride (23.6%) and potassium bichromate (10.2%). Nickel was the most common sensitizing metal also in males (58.3%), among whom sensitization to chromate resulted second in order of frequency (30.6%), and sensitization to cobalt was relatively rare (11.1%). In selected cases, the utilization of additional, specific series allowed to document rare cases of sensitization to metallic salts not included in the standard patch test series (copper sulphate, cadmium chloride, zinc stearate, phenylmercuric nitrate). 78 patients were sensitized to more than one metal. Skin sensitivity to metals was often linked to allergic disease familiarity and/or to sensitization toward type I allergens. Allergic contact dermatitis was diagnosed in 80 patients: cutaneous manifestations had been present on average for over four years, sometimes in generalized or persistent form. An occupational contact with the causative metals was identified in 15 cases. However, the occupational origin of the disease could never be documented with certainty, due to concomitance of frequent non-occupational exposures and to lack of information on pre-employment skin sensitivity status. Thus, the value of patch testing, during both pre-employment screening and health surveillance, is emphasized
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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