1,721,097 research outputs found
Disturbi soggettivi in operatori addetti dalla Risonanza Magnetica (RM): risultati preliminari in un campione pilota
No full textINTRODUZIONE
Alcuni studi nel personale addetto alla Risonanza Magnetica (RM) suggeriscono un’aumentata prevalenza di alcuni sintomi soggettivi quali sensazione di sapore metallico, vertigini e sensazione di movimento, nausea e cefalea, ed un possibile effetto su alcuni test neuro-comportamentali e neurofisiologici, reversibili dopo interruzione dell’esposizione (1,2,3,4). I dati sono però moto limitati. In questo lavoro presentiamo uno studio che stiamo avviando su tali sintomi in addetti alla RM, ed alcuni dati preliminari raccolti in un gruppo pilota per testare lo strumento.
MATERIALI E METODI
E' stato somministrato un questionario sulla presenza di disturbi soggettivi quali: sensazione di sapore metallico, vertigini e sensazione di movimento, nausea e cefalea, formulato sulla base dei risultati di precedenti studi. Verrà studiata l’esistenza di una relazione tra la prevalenza e l’intensità dei sintomi e l’entità e la durata dell’esposizione. I dati saranno confrontati con un gruppo di controllo. In questa sede vengono presentati alcuni risultati di un test preliminare di fattibilità.
RISULTATI
Sono stati raccolti 28 questionari, 15 partecipanti di sesso maschile e 13 di sesso femminile, tutti addetti a RM di potenza variabile da 1 Tesla (T) a 3T. La durata dell’attività lavorativa con apparecchiature RM è risultata molto variabile, da 1 a 22 anni (media 5,2 anni ± 5, DS).
Con questa premessa, sono riportati i dati sui sintomi soggettivi riferiti: delle 28 persone studiate, ben 25 hanno riferito di aver avuto, nel corso dell’ultimo anno, almeno uno dei sintomi indagati. Solo 6 operatori li hanno lamentati almeno una volta alla settimana, e solo 4 si sono fatte visitare da un medico a causa di tali disturbi. I sintomi più frequenti sono risultati: nausea (3 lavoratori), mal di testa, capogiri/vertigini e sonnolenza inusuale/stanchezza (2 lavoratori). 5 operatori ritenevano che la sintomatologia potesse essere causata/aggravata dal lavoro nei locali della RM. Per quanto riguarda il tempo richiesto per la regressione dopo l’allontanamento, nella maggioranza dei casi la comparsa avveniva dopo pochi minuti dall’inizio dell’esposizione, e la regressione entro 15-30 minuti.
CONCLUSIONI
Viene presentato uno studio mediante questionario, basato sui dati della letteratura più recente, volto ad indagare la prevalenza ed intensità di sintomi soggettivi in addetti alla RM. Le domande che vengono poste sono analoghe a quelle contenute in questionari in corso di raccolta in altre Nazioni Europee, in modo che i risultati siano confrontabili. Sono anche presentati i risultati di un test preliminare di fattibilità del questionario, basato sulla somministrazione in un gruppo di 28 volontari, non considerabili rappresentativi per la modesta numerosità e la modalità di raccolta
Editorial: Occupational Medicine: Disease Risk Factors and Health Promotion
Full text linkOccupational Medicine has always been concerned with preventing health problems caused by working conditions, and with promoting and maintaining the highest level of physical, mental, and social wellbeing of workers in all occupations (1–3). In the last few decades, with an aging work population and arise in sickness and absenteeism with the associated financial impacts on organizations, workplace health promotion has become a top priority. Regarding this issue, some research groups have carried out studies on health promotion. In a survey, Di Lorenzo et al. compared healthcare workers with other employees on adherence to the Mediterranean Diet and blood lipid profile; their results showed the preventive contribution in the context of periodic health surveillance by occupational physicians. Research group of Garcia-Rojas carried out a non-randomized company-based trial to evaluate a worksite health promotion program in seven Mexican companies. The investigation confirmed that a promotion activity carried out in an occupationalmedicine context could be helpful to reduce high blood pressure, in particular, among diabetic workers (Garcia-Rojas et al.). Hanson et al. pointed out that it is appropriate to intervene on some groups of workers such as those working in construction and homecare, who seemto have higher modifiable and non-modifiable risk factors compared to the general population. Hermann et al. and Merati et al. reported that it is appropriate to carry out strategies based on occupational medicine to mitigate the risks that may interfere with the overall health of workers. In Italy, a good practice implemented by Tuscany Regio
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
Predictors of trauma in bank employee robbery victims
Full text linkIn the literature, there are many studies that have investigated the psychological reactions resulting from traumatic events of varying degrees, such as wars, natural disasters, and acts of violence. Few, however, are the searches performed on employees who are victims of robbery. We carried out a research to assess the psychological reactions of 644 bank employees who had been victims of robbery, especially with regard to the possible development of post-traumatic stress disorder (PTSD). The aim of this study was to evaluate the variables pre-, peri-, and postrobbery trauma in relation to the development of psychopathological symptoms. The exploration of the reactions after the robbery was carried out on 644 employees of a banking institution, present throughout the national territory, through a survey, consisting of a general description of the event, the Impact of Event Scale Revised-6 scale, and the General Health Questionnaire-12, during the days after the robbery. The analysis showed that the development of pretrauma variables is not significant and that peritrauma variables are partially significant. In particular, being directly involved in the robbery, the thought of being hurt, and the feeling of intense fear are associated with posttraumatic symptoms. Finally, among the posttrauma variables, anxiety and depression played a major role. Surprisingly, a lower level of self-confidence seems to be related negatively to the PTSD symptomatology
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
The role of RET codonic mutations in the surgical management of medullary thyroid cancer in MEN2 syndromes: multicentric study
No full textEvaluation,management and outcome of pediatric ovarian lesions: 67 consecutive patients surgically treated in a 7 year period
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