1,720,993 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
Neighbourhood income inequality and preschooler’s internalizing and externalizing problems
Get PDFBackground Several studies have linked neighbourhood social and economic characteristics to preschool-aged children’s emotional and behavioural problems. Although income inequality has been identified as a risk factor for mental health and behavioural outcomes among adolescents, no studies have been conducted on young children less than 10 years of age. The objective of the current study is to explore the association between neighbourhood-level income inequality and internalizing and externalizing problems among preschool-aged children.
Methods We analyzed cross-sectional data from the All Our Families (AOF) longitudinal cohort located in Calgary, Alberta at 3-years postpartum. The analytical sample consisted of 1598 mother-preschooler dyads nested within 184 neighbourhoods. Mothers completed the National Longitudinal Survey of Children and Youth adapted Child Behaviour Checklist (NLSCY- CBCL), which assessed internalizing and externalizing symptoms of their child. Multilevel logistic regression modelling was used to assess a relationship between neighbourhood income inequality measured via the Gini coefficient and preschooler’s internalizing and externalizing problems.
Results The mean Gini coefficient across the 184 neighbourhoods was 0.33 (S.D = 0.05) and ranged from 0.23 to 0.55. Neighbourhood income inequality was not associated with either externalizing (OR = 1.04, 95%CI: 0.89, 1.20) or internalizing (OR = 0.96, 95%CI: 0.84, 1.14) problems in preschoolers. Before-tax household income was significant in internalizing (OR = 1.38, 95%CI: 1.02,1.86), however, was not significant for externalizing problems in fully adjusted models.
Conclusion Neighbourhood-level inequality is not associated with internalizing or externalizing problems at 3-years of age. No association was observed among preschool-aged children because they may be too young to experience its effects or are more sensitive to the household environment such as lower household incomes, as opposed to their neighbourhood environment
The effects of a ban on extracurricular activities by teachers on students' levels of physical activity in the Montreal area /
No full textSince physical activity is part of a healthy lifestyle, there is a lot of interest concerning the determinants of this behaviour in youth since it is tracked into adulthood. Environmental determinants belong to one subset of factors that influence physical activity. Baseline and one-year follow-up data on level of physical activity were collected in classroom questionnaires from 1264 7th grade students (56.2% of eligible students). Physical activity was assessed via an adaptation of the Weekly Activity Checklist. The effect of a ban on extracurricular activities on adolescent physical activity levels was determined. Multivariate logistic regression analyses were used to determine the effect of the ban when controlling for baseline physical activity, the number of extracurricular activities regularly offered at the school, and season at baseline. Students attending high implementation schools were significantly more likely to increase their levels of physical activity after the ban was lifted, than students in low implementation schools (odds ratio (OR) = 1.49 (95% CI = 1.16, 1.91) and 2.19 (95% CI = 1.80, 2.67 for boys and girls respectively). These results suggest that a teachers' ban on sports-related ECAs was associated with a decrease in the PA levels of students attending secondary schools. The impact was higher among girls than boys
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
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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