1,720,955 research outputs found
Disturbi e patologie cronico-degenerative degli arti superiori in carteggiatrici dell’industria della sedia.
No full textWork-related disorders of the upper limb in female workers using orbital sanders
No full textObjectives: To investigate the prevalence of
vascular, neurological and musculoskeletal disorders of
the upper limb in a group of female workers performing
either mechanical or hand sanding in the furniture
industry (n=100) and in a control group of female office
workers (n=100). A further aim was to study the possible
adverse effects of exposure to a combination of
vibration and ergonomic risk factors in female workers.
Methods: All female workers underwent a medical
interview and a complete physical investigation. The
clinical diagnoses of Raynaud’s phenomenon and carpal
tunnel syndrome (CTS) were made according to international
consensus criteria. Hand-transmitted vibration
from orbital sanders was measured according to International
Organization for Standardization (ISO) recommendations.
Daily vibration exposure was assessed in
terms of 8-h energy-equivalent frequency-weighted
acceleration [A(8)] according to the European Directive
on physical agents. Ergonomic load on the upper limbs
was estimated by means of strain index methodology.
Results: There was no significant difference in the prevalence
of Raynaud’s phenomenon between the furniture
workers (4%) and the controls (8%). The prevalence of
CTS, peripheral sensorineural disturbances (after
exclusion of CTS cases) and upper-limb musculoskeletal
complaints was significantly greater in the furniture
workers than in the controls. CTS was clinically diagnosed
in 19% of the furniture workers and 8% of the
controls. A log-binomial regression analysis showed that
the occurrence of soft-tissue disorders of the upper limb
increased significantly with the increase of both daily
vibration exposure and the strain index score. It was
estimated that the risk for CTS increased by a factor of
1.30 (95% CI 1.11–1.53) for each unit of increase in A(8)
(ms2), and by 1.09 (95% CI 1.02–1.15) for each unit of
increase in the strain index score. Conclusions: Even
though the cross-sectional design of this epidemiological
study does not allow aetiological considerations, our
findings suggest a significant association between occupational
use of vibratory tools and soft-tissue disorders
in the upper limbs of female workers. Quantitative
estimation of vibration exposure and ergonomic stress
showed that these physical risk factors seem to contribute
in a multiplicative way to the occurrence of
chronic nerve and musculoskeletal disorders in female
workers operating hand-held vibrating tools in the furniture
industry
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
- …
