1,721,020 research outputs found
Elbow-specific clinical rating systems:extent of established validity, reliability, and responsiveness
No full text<p>Background: The modern standard of evaluating treatment results includes the use of rating systems. Elbow-specific rating systems are frequently used in studies aiming at elbow-specific pathology. However, proper validation studies seem to be relatively sparse. In addition, these scoring systems might not always be used for appropriate populations of interest. Both of these issues might give rise to invalid conclusions being reported in the literature. Our aim was to investigate the extent to which the available elbow-specific outcome measurement tools have been validated and the quality of the validation itself. We also aimed to provide characteristics of the populations used for validation of these scales to enable clinicians to use them appropriately.</p><p>Methods: A literature search identified 17 studies of 12 different elbow-specific scoring systems. These were assessed for validity, reliability, and responsiveness characteristics. The quality of these assessments was rated according to the Consensus Based Standards for the Selection of Health Measurement Instruments (COSMIN) checklist criteria, a standardized and validated tool developed specifically for this purpose.</p><p>Results: Currently, the only elbow-specific rating system that is validated using high-quality methodology is the Oxford Elbow Score, a patient-administered outcome measure tool that has been validated on heterogeneous study populations.</p><p>Conclusion: Other rating systems still have to be proven in the future to be as good as the Oxford Elbow Score for clinical or research purposes. Additional validation studies are needed.</p><p>Level of evidence: Basic Science, Validation of Outcome Instruments, Systematic Review. (C) 2013 Journal of Shoulder and Elbow Surgery Board of Trustees.</p>
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
Outcomes of operative and nonoperative treatment of 3-and 4-part proximal humeral fractures in elderly: a 10-year retrospective cohort study
Full text linkPURPOSE: Despite a rising incidence in proximal humeral fractures, there is still no evidence for the best treatment option, especially for elderly patients. The aim of this retrospective cohort study was to evaluate health-related quality of life (HRQoL), functional outcome, pain and social participation in elderly patients, after operative and nonoperative treatment of displaced 3- and 4-part proximal humeral fractures. METHODS: 150 patients aged ≥ 65, treated for a displaced 3- or 4-part proximal humeral fracture between 2004 and 2014, were invited to participate. Eventually 91 patients (61%) participated, of which 32 non-operatively treated patients were matched to 32 of the 59 operatively treated patients by propensity score matching. The EQ-5D, DASH, VAS for pain and WHODAS 2.0 Participation in Society domain were administered. Complications and reinterventions were registered. RESULTS: No significant difference was found between the two treatment groups in HRQoL (p = 0.43), function (p = 0.78) and pain (p = 0.19). A trend toward better social participation in the operative group (p = 0.09) was found. More complications and reinterventions occurred in the operative group than the nonoperative group, with 9 versus 5 complications (p = 0.37) and 8 versus 2 reinterventions (p = 0.08). CONCLUSIONS: In this study, we found no evidence of a difference in HRQoL, functional outcome or pain 1-10 years after operative or nonoperative treatment in patients of 65 and older with a displaced 3- or 4-part humeral fracture. Operatively treated patients showed a trend toward better social participation but also higher reintervention rates
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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