1,720,989 research outputs found
Risk assessment for upper extremity work related muscoloskeletal disorders in different manufactures by applying six methods of ergonomic analysis
No full textThe risk assessment for Upper Extremities Work Related Muscle skeletal Disorders (UEWMSDs) remains a complex and open question. For professionals involved in this analysis of fundamental importance appears the use of technical/good practice norms or the guide lines produced by scientific society or association, such as for our country the guide lines published on this theme by the Italian Society of Occupational Medicine and Industrial Hygiene (SIMLII). The objective of this research was to verify and validate the multiple step method suggested by above mentioned guide lines and to compare results obtained by six analysis methods adopted (Washington State Standard, OCRA, HAL, RULA, OREGE and STRAIN INDEX (SI)).439 workstation in 17 manufactures employing 4166 workers for a total of 1396 analysis by different methods were considered, by adopting the following multiple step procedure: preliminary evaluation by Washington State method and OCRA checklist in all the working stations, RULA or HAL as first level evaluation, OREGE or SI as second level evaluation when complexity of work variables or contradictory results emerged. We have also collected data, provided by occupational physicians, about the pathologies of the upper limb. A representative sample of workers was also administered a INRS OREGE questionnaire that investigates the disorders of the upper limb, the subjective perception of risk, psychosocial factors and stress-related disturbs.The preliminary evaluation resulted negative (risk absent) in the 87\% of examined work stations and by using checklist OCRA optimal-acceptable condition was found in 57\% (the percentage reaches more than 90\% when classes of risk absent-very low-low risk classes of the method were considered all together), by HAL in 91\% of analysis, by RULA in 90\%, by OREGE in 58\%; by SI in 67\% of examined working position. Five methods have been contemporary used for 31 working position with the following results: 58\% at different degree of risk by OCRA, 13\% by HAL, 19\% by RULA; 13\% by OREGE; 10\% by SI. Among the main components of the bio mechanical risk the high frequency of working task resulted at first place for 4/5 methods and for checklist OCRA also the evaluation of recovery times. Consistent with the findings from risk assessment, the majority of reports of occupational diseases by occupational physician is localized at the wrist and workers assigned to tasks at risk not always have had occupational diseases. The role of main psychosocial factors was demonstrated in about the 15-20\% of working conditions and regarded in particular the working climate, the job maintenance perspective, the time pressure and errors possibility together with the difficulty of help by colleagues and managers and stress related disturbs.The preliminary evaluation by State of Washington method appears to be an adequate instrument for identify the working condition at risk. The results of this method appears well correlated with OCRA checklist and HAL. The risk conditions were always confirmed by higher complexity methods (RULA, OREGE, SI). All the adopted methods were in a good agreement in two extreme situations: high risk or absent risk. In the degree of accordance varied on the basis of their rationale and of the role of their different components. A necessary integration of biomechanical analysis appears the evaluation of working conditions and musculoskeletal and psychological disorders collected directly from the workers and the results of health surveillance programs. The recommendations of SIMLII about the critical use of biomechanical methods and about the possible use of more than one of them considering the working characteristics have been confirmed
Stima della presa in pinch: approfondimento degli aspetti metodologici ed applicativi mediante l'impiego di un nuovo apparato portatile, P force Met
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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
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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