1,720,956 research outputs found
Silicoasbestosi: presentazione di tre casi clinici
No full textSilicoasbestosis is a rare pneumoconiosis due to the combined sclerosing effect of crystalline silica and asbestos fibres. We present here three cases (males, age: 66-75 years), recently reported to the judicial and workers' compensation authorities. The exposures occurred in the building and siderurgic industries, several years before retirement. The radiological pictures were characterized by diffuse nodular opacities, interstitial alterations, emphysema, pleuric plaques and thickenings. The patients described show that, still nowadays, silicoasbestosis may be observed in the clinical setting. Accurate occupational and environmental anamnesis are helpful for the correct diagnosis which, in turn, is important for prognosis and treatment, and in relation to medicolegal issues
Protocollo “CardioLavoro”: presentazione di un modello di valutazione del reinserimento lavorativo dopo evento cardiaco acuto e dati preliminari
No full textA multidisciplinary protocol (“CardioWork”) for work resumption after cardiosurgery (for ischaemic heart disease or valvulopathy) and cardiological rehabilitation is presented. 84 patients (77 males; 7 females) in working age (mean 49,8 years) were enrolled. The education level was medium-high. The patients underwent psychological and occupational medicine evaluation collecting personal data, cardiovascular risk factors, comorbility, cardiologic and occupational history. The jobs were classified as multiples of basal metabolism (METS), according to the entity of physical strain: in the 84% of patients the tasks were defined as sedentary (< 2 METS) or light (2-4 METS). These data were integrated with those obtained from instrumental cardiological evaluation (24 hours Holter ECG, echocardiography, treadmill ergometric testing) to formulate indications regarding the timing and modality of work resumption, and possible limitations to job fitness. Currently, 52 patients have been re-evaluated after six months: 92% of them have resumed working. Among these, only 4% required a change of the previous tasks. A high compliance (88%) with our indications was observed. These preliminary data indicate that the intervention of the occupational physician in the rehabilitative process after cardiosurgery may optimize the evaluation of the patients’ ergonomic capacity aimed at work resumption
Elettrocardiografia da sforzo nella sorveglianza sanitaria di lavoratori con impegnativo dispendio energetico
No full textTo evaluate the opportunity of exercise electrocardiography (ECG) in the sanitary surveillance of workers with physical strain, we estimated the energy consumption of the duties of 22 electrical workers (males; age: 35-56 years). They subsequently underwent Treadmill exercise ECG, determining for each worker the maximal METs (multiples of basal metabolism) and the critical potency (P(CRIT)). In one subject, myocardial ischemia arose 9 minutes after the beginning of the test. The others interrupted the test after 7-13 minutes for tiring; 5 of them showed ventricular extra systoles, paired or isolated. Twelve subjects presented arterial hypertension, at rest and/or during exercise. Ergonomic analysis revealed that the occupational duties were between 1.5 and 8.0 METs. The energy consumption of the job on the whole was 4-6 METs (medium intensity). The maximal METs reached by the examined subjects were between 8.8 and 15.6; however, only 11 workers went reassuringly over the 4 METs required by duty analysis at P(CRIT). One subject was declared unfit for the job, and a judgement of partial idoneity was expressed for 3 workers. Preventive and therapeutic indications were given to 12 subjects. Aerobic training was suggested to 10 workers. The study indicates that an ergonomic evaluation is advisable for the most energy consuming occupational duties. In such cases, the sanitary surveillance should include a cardiologic assessment with exercise ECG, reproducing the physical strain of the specific job
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
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