1,721,016 research outputs found
Analysis of effects of axial shortening of steel columns in frame structure
No full textSteel columns in frame structure always carry heavy upcoming compressive forces. As a consequence, axial\ud
shortening becomes a common phenomenon in a multistoried\ud
steel structure. A 100 storied steel structure is analyzed in\ud
SAP2000 to study the magnitude overall effects of column\ud
shortening. It was found from the study that the maximum axial\ud
shortening occurs at the columns of top storey of the steel\ud
structure and at the columns of bottom storey, the axial\ud
deformation is negligible. The increasing rate of axial shortening\ud
is significant at the initial levels. However, at the upper levels, the\ud
amount of axial shortening in steel columns differs\ud
insignificantly. In the selected rigid frame structure, the axial\ud
shortening of adjacent steel columns is found to influence\ud
significantly the differential shortening of the structure. The\ud
consequent effect of differential shortening leads to develop\ud
excessive stress in the corner joints which ultimately hamper the\ud
normal behavior of the structural systems. The results are\ud
discussed elaborately in the paper
Depression management in primary care: an observational study of management changes related to PHQ-9 score for depression monitoring
No full textBackground:Since 2009 UK GPs have been incentivised to use depression severity scores to monitor patients' response to treatment after 5-12 weeks of treatment.Aim:To examine the association between the severity scores obtained and follow-up questionnaires to monitor depression and subsequent changes made to the treatment of it.Design and setting:A retrospective cohort study utilising routine primary care records was conducted between April 2009 and March 2011 in 13 general practices recruited from within Hampshire, Wiltshire, and Southampton City primary care trusts.Method:Records were examined of 604 patients who had received a new diagnosis of depression since 1 April 2009, and who had completed the nine-item depression scale of the Patient Health Questionnaire (PHQ-9) at initial diagnosis and a subsequent PHQ-9 within 6 months. The main outcome measure was the odds ratio (OR) for a change in depression management. Change in management was defined as change in antidepressant drug prescription, dose, or referral.Results:Controlling for the effects of potentially confounding factors, patients who showed an inadequate response in score change at the time of second assessment were nearly five times as likely to experience a subsequent change to treatment in comparison with those who showed an adequate response (OR 4.72, 95% confidence interval = 2.83 to 7.86).Conclusion:GPs' decisions to change treatment or to make referrals following a second PHQ-9 appear to be in line with guidance from the National Institute for Health and Clinical Excellence for the monitoring of depression in primary care. Although the present study demonstrates an association between a lack of change in questionnaire scores and treatment changes, the extent to which scores influence choice and whether they are associated with improvements in depression outcomes is an important area for further research
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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