1,720,971 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
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
Sarcopenic obesity and associated body composition characteristics in individuals undergoing bariatric sugery: a retrospective study
No full textS279 Diabetologia (2023) 66 (Suppl 1):S1-S536 1 3 after bariatric surgery mitigating its positive effects on health status, leading to patient dissatisfaction and requiring the need for revisional surgery, which is associated with higher complication and mortality rates. Preoperative predictors contributing to IWL are not sufficiently studied. Therefore, we tried to identify preoperative predictors for IWL to identify patients at risk for IWL after bariatric surgery and thus to improve outcomes. Materials and methods: In this retrospective analytical study, patients who underwent sleeve gastrectomy (SG) or gastric bypass (GB) at our bariatric centre between March 2003 and December 2020 with complete 1 year follow-up data were included. IWL was defined as percentage excess weight loss (%EWL) less than 50% at 1 year after bariatric surgery. A total of 337 patients were included (83% female, 38% after SG, 62% after GB, BMI=46.4+-7.0 kg/m2, age 41+-11 years, from 17 to 67 years (means+-SD)). Kolmogorov-Smirnov test was used to assess the normality of quantitative data. A t-test was performed for parametric and a Mann-Whitney U test for non-parametric, continuous variables. A chi-squared test was performed for categorical variables. Results: 15% experienced IWL. The mean %EWL after 1 year was 82.1+-21.1% in the sufficient weight loss group and 35.8+-13.5% in the insufficient weight loss group. Predictors for sufficient weight loss were lower weight at baseline (p=0.023), lower BMI at baseline (p=0.02), higher HDL levels at baseline (p=0.025), gastric bypass as performed bariatric procedure (p=0.007) and no intake of ß-blockers (0.021). Age, waist circumference, sex, diabetes, HbA1c, fasting glucose and insulin, HOMA index, the intake of diabetes medication or insulin were no predictors for IWL. Conclusion: 15% of patients undergoing SG or GB experienced IWL defined as %EWL less than 50%. Predictors for sufficient weight loss were lower weight, lower BMI and higher HDL levels at baseline, gastric bypass as performed bariatric procedure and no intake of ß-blockers. Disclosure: V. Parzer: None. 551 Sarcopenic obesity and associated body composition characteristics in individuals undergoing bariatric sugery: a retrospective study Background and aims: Sarcopenia can coexist with obesity, together termed sarcopenic obesity (SO). SO is characterised by concomitant low muscle mass and function and excessive fat accumulation. As different relative indices of body composition are used to define SO, data on the prevalence of SO are divergent. This retrospective study aims to examine the prevalence of SO and its associations with pre-operative body composition characteristics, metabolic profile and weight loss success in bariatric surgery candidates. Materials and methods: Retrospective, cross-sectional study evaluating whole-body and regional body composition (assessed by dual-energy x-ray absorptiometry) and biochemical blood variables in adults (age 42±13 years) planned for bariatric surgery (n=78, 23% male, BMI 41.2±3.2 kg/m 2). SO diagnosis was based on sex-specific cut points for relative expressions of appendicular lean tissue mass (ALM, corrected for total body weight (ALM/w) or height squared (ALM/h 2)), as advocated by the Sarcopenic Obesity Global Leadership Initiative. Body composition variables, metabolic profile and weight loss (expressed as percentage total weight loss following surgery) were compared between ALM tertiles using Kruskal-Wallis and Mann-Whitney U tests
Sarcopenic obesity and associated body composition characteristics in individuals undergoing bariatric sugery: a retrospective study
No full textS279 Diabetologia (2023) 66 (Suppl 1):S1-S536 1 3 after bariatric surgery mitigating its positive effects on health status, leading to patient dissatisfaction and requiring the need for revisional surgery, which is associated with higher complication and mortality rates. Preoperative predictors contributing to IWL are not sufficiently studied. Therefore, we tried to identify preoperative predictors for IWL to identify patients at risk for IWL after bariatric surgery and thus to improve outcomes. Materials and methods: In this retrospective analytical study, patients who underwent sleeve gastrectomy (SG) or gastric bypass (GB) at our bariatric centre between March 2003 and December 2020 with complete 1 year follow-up data were included. IWL was defined as percentage excess weight loss (%EWL) less than 50% at 1 year after bariatric surgery. A total of 337 patients were included (83% female, 38% after SG, 62% after GB, BMI=46.4+-7.0 kg/m2, age 41+-11 years, from 17 to 67 years (means+-SD)). Kolmogorov-Smirnov test was used to assess the normality of quantitative data. A t-test was performed for parametric and a Mann-Whitney U test for non-parametric, continuous variables. A chi-squared test was performed for categorical variables. Results: 15% experienced IWL. The mean %EWL after 1 year was 82.1+-21.1% in the sufficient weight loss group and 35.8+-13.5% in the insufficient weight loss group. Predictors for sufficient weight loss were lower weight at baseline (p=0.023), lower BMI at baseline (p=0.02), higher HDL levels at baseline (p=0.025), gastric bypass as performed bariatric procedure (p=0.007) and no intake of ß-blockers (0.021). Age, waist circumference, sex, diabetes, HbA1c, fasting glucose and insulin, HOMA index, the intake of diabetes medication or insulin were no predictors for IWL. Conclusion: 15% of patients undergoing SG or GB experienced IWL defined as %EWL less than 50%. Predictors for sufficient weight loss were lower weight, lower BMI and higher HDL levels at baseline, gastric bypass as performed bariatric procedure and no intake of ß-blockers. Disclosure: V. Parzer: None. 551 Sarcopenic obesity and associated body composition characteristics in individuals undergoing bariatric sugery: a retrospective study Background and aims: Sarcopenia can coexist with obesity, together termed sarcopenic obesity (SO). SO is characterised by concomitant low muscle mass and function and excessive fat accumulation. As different relative indices of body composition are used to define SO, data on the prevalence of SO are divergent. This retrospective study aims to examine the prevalence of SO and its associations with pre-operative body composition characteristics, metabolic profile and weight loss success in bariatric surgery candidates. Materials and methods: Retrospective, cross-sectional study evaluating whole-body and regional body composition (assessed by dual-energy x-ray absorptiometry) and biochemical blood variables in adults (age 42±13 years) planned for bariatric surgery (n=78, 23% male, BMI 41.2±3.2 kg/m 2). SO diagnosis was based on sex-specific cut points for relative expressions of appendicular lean tissue mass (ALM, corrected for total body weight (ALM/w) or height squared (ALM/h 2)), as advocated by the Sarcopenic Obesity Global Leadership Initiative. Body composition variables, metabolic profile and weight loss (expressed as percentage total weight loss following surgery) were compared between ALM tertiles using Kruskal-Wallis and Mann-Whitney U tests
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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