1,721,007 research outputs found
Patologie non neoplastiche da esposizione lavorativa ad amianto
No full text...L’esposizione occupazionale ad amianto è stata rilevante in passato in molteplici attività lavorative. Oggi, in Italia, sono generalmente esposti solo alcuni lavoratori (ad es. addetti a decoibentazioni, rimozioni e smaltimenti di materiali contenenti amianto), ma l’attenzione deve essere rivota anche agli ex esposti, in considerazione della latenza - anche di varie decadi - con cui si possono manifestare le patologie da amianto, sia neoplastiche che non. I principali quadri clinici non neoplastici derivati dall’esposizione occupazionale ad amianto sono l’asbestosi (pneumoconiosi caratterizzata da alveolite e fibrosi interstiziale diffusa), l’atelettasia rotonda ed alcune pleuropatie (placche, ispessimenti, versamenti pleurici benigni); viene considerata correlata all’amianto anche l’assai rara fibrosi retroperitoneale. Il procedimento diagnostico richiede un’approfondita anamnesi lavorativa ed extra lavorativa, l’esame clinico del paziente e l’effettuazione di indagini essenzialmente strumentali (prove di funzionalità respiratoria complete ed imaging radiologico con Rx torace ed eventualmente HRCT), talora integrati da esami di laboratorio (ad es. ricerca corpuscoli dell’asbesto in varie matrici biologiche) e sempre con attenzione alla diagnosi differenziale rispetto ad altre fibrosi polmonari e pleuropatie. Quasi tutte le patologie non neoplastiche da amianto sono incluse per legge nella Tabella delle Malattie Professionali e per alcune di esse sussiste l’obbligo di denuncia alle Autorità competenti, da parte di qualsiasi medico che ne formuli la diagnosi o la sospetti. La loro prevenzione è basata su specifici provvedimenti legislativi, nonché sui principi cardine della Medicina del Lavoro e si avvale di vari interventi di prevenzione primaria, secondaria e terziaria.Occupational exposure to asbestos was relevant in the past in many work settings. Nowadays, in Italy, only a few workers are generally exposed (e.g., those involved in removal and disposal of asbestos containing materials); however, ex-exposed workers should also be considered, taking into account the long latency period (various decades) before appearance of all asbestos diseases. The main non-malignant occupational asbestos diseases are: asbestosis (a pneumoconiosis characterized by alveolitis and diffuse interstitial fibrosis); round atelectasis; pleural abnormalities such as plaques, thickenings, effusions; the very rare retroperitoneal fibrosis can also be asbestos-related. The diagnostic procedures requires a thorough occupational and extra-occupational history collection, physical examination of the patient, complete lung function tests, imaging (chest X-ray sometimes supplemented by HRCT), sometimes with laboratory test (e.g., asbestos body count in biological samples); differential diagnosis should be considered versus other interstitial lung disorders and other pleural changes. Almost every non-malignant asbestos disease is included by law in the List of occupational diseases; it is also mandatory for every physician performing diagnosis, to report almost every diseases to the health and compensation authorities. Prevention of non-malignant asbestos diseases is based upon specific legislation as well as upon the cardinal principles of Occupational Health; the interventions pertain to primary, secondary and tertiary prevention
OCCUPATIONAL EXPOSURE TO IONISING RADIATION AND FITNESS FOR WORK: A CASE SERIES AND COMPARISON WITH LITERATURE.
No full textIntroduction
The increasing number of healthcare workers (HCWs) occupationally exposed to ionising radiation (IR) and the growing number of cancer disease survivors in the working age, require adopting shared and sustainable management models to protect workers' health and safety.
Methods
We performed a retrospective analysis of health surveillance activities carried out in the last six years on HCWs working at the University Hospital of Verona. All cancer cases were collected and evaluated, as well as information on the characteristics of the worker and job task. The cases were then appraised and compared with the most recent evidence in the literature.
Results
Ten cancer cases were recognised: four breast cancer, one gastric lymphoma, two papillary thyroid carcinomas, one melanoma, two leukaemia cases and one colon cancer. For eight workers, it was necessary to appraise the probability of causation regarding occupational exposure and the onset of the disease, as well as fitness for work, which in more than 50% of the cases led to restrictions.
Discussion
The case series analysis enabled to identify a tailor-made health surveillance protocol for these IR-exposed workers and to facilitate the support of a team of referral physicians so that the worker was quickly taken care of. The literature review revealed insufficient scientific evidence to support the occupational physician in managing these cases.
Conclusion
The management of cancer workers exposed to IR requires a close multidisciplinary collaboration, in order to take care both of their health and safety protection needs and their professionalism at work
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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