1,720,962 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Postural control in childhood: Investigating the neurodevelopmental gradient hypothesis
Get PDFNeurodevelopmental disorders (NDDs) have been suggested to lie on a gradient con-tinuum, all resulting from common brain disturbances, but with different degrees of impairment severity. This case-control study aimed to assess postural stability against such hypothesis in 104 chil-dren/adolescents aged 5–17, of whom 81 had NDDs and 23 were healthy controls. Compared to healthy controls, Autism Spectrum Disorder (ASD) resulted in the most severely impaired neurode-velopmental condition, followed by Attention Deficit Hyperactive Disorder (ADHD) and Tourette Syndrome (TS). In particular, while ASD children/adolescents performed worse than healthy controls in a number of sensory conditions across all parameters, ADHD children/adolescents performed worse than healthy controls only in the sway area for the most complex sensory conditions, when their vision and somatosensory functions were both compromised, and performance in Tourette Syndrome (TS) was roughly indistinguishable from that of healthy controls. Finally, differences were also observed between clinical groups, with ASD children/adolescents, and to a much lesser extent ADHD children/adolescents, performing worse than TS children/adolescents, especially when sensory systems were not operationally accurate. Evidence from this study indicates that poor postural control may be a useful biomarker for risk assessment during neurodevelopment, in line with predictions from the gradient hypothesis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
COST-EFFECTIVENESS EVALUATION OF A CARE BUNDLE INTERVENTION FOR PREVENTING FALLS AMONG ITALIAN AGED INPATIENTS IN A STEPPED-WEDGE CLUSTER RANDOMIZED CONTROLLED TRIAL
No full textObjectives: Falls among hospitalized elderlies represent a frequent (20-30%) adverse event. About 30% of falls lead to injuries with different types of severity and can provoke long-time disability or death. The prevention of falls in the hospital is possible through the adoption of multimodal strategies. This study aimed at identifying the potential reduction in falls due to the Care Bundle implementation and its cost-effectiveness in real clinical environment Methods: 10 clusters (hospital units) of Bologna USL and University Hospital were randomized in a stepped-wedge design including 4 steps over the years 2015 and 2016. Incidence rates of falls in both the control and intervention periods were calculated considering the patientdays of exposure. The overall crude relative risk (RR) was calculated with its 95% confidence interval. The overall crude incremental cost-effectiveness ratio (ICER) per fall prevented has been calculated. The difference in the rate of patient falls during the intervention period compared with the control period was in the denominator of the ICER. The difference in intervention vs control costs (associated with implementation of the Care Bundle program, length of stay and hospital services provided to patients attributable to falls) was in the nominator. Results: A total of 11844 patients were randomized in this trial (intervention group n=6600, mean(SD) age=80.93(11.62); control group n=5244, mean(SD) age=78.14(12.68)) throughout the overall period. A 13% reduction (RR=0.87 (95% CI: 0.71-1.07)) in falls due to the Care Bundle intervention was observed, though it did not reach statistical significance. The overall ICER was €617.55 for fall prevented. Conclusions: The preliminary analyses showed a positive effect of Care Bundle intervention for preventing falls among aged inpatients at relatively low cost for fall prevented. Deeper statistical analyses to estimate precise cost-effectiveness of the Care Bundle intervention will be conducted shortly
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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