1,720,964 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
Use Of Dual Energy X-Ray Absorptiometry Measurements To Evaluate Total Body Volume When Compared To Air Displacement Plethysmography For Evaluating Body Composition In A Four Compartment Model
Get PDFIntro: Body composition is an important metric to evaluate overall health. Having reliable body composition testing methods are critical to ensure that an individual is receiving correct data in which to base health, nutrition, and lifestyle decisions. With technological improvements, there are more reliable, high-quality testing devices for body composition than in the past. However, there remains questions on the validity of the devices to properly measure body composition. There is a need for a more accurate, simplistic testing methodology.
Purpose: The purpose of this paper was to examine the use of dual energy x-ray absorptiometry (DEXA) based formulas to evaluate body volume (BV). The second purpose was to examine the validity of using predicted body volume measurements in four-compartment body composition models.
Methods: Subjects were tested on three devices designed for body composition metrics; DEXA for lean body mass, bone mineral content, and fat mass, BodPod for body volume, and a bioimpedance spectroscopy (BIS) device using dual electrode tabs (SFB7) for total body water. The measured metrics were used to compute two DEXA based predicted BV equations, Wilson, et al. (2012) and Smith-Ryan, et al. (2017). The results were then compared to measured BodPod BV. Second, this study calculated two different four-compartment model formulas, Withers, et al. (1998) and Wang, et al. (2005), using a DEXA calculated body volumes. These models were then compared to a four-compartment model using BodPod measured body volume.
Results: 90 healthy adults (50 females and 40 males), aged 18 to 66 years (median 23 years), BMI 18 to 34 (median 25), weight 45 to 115 kg (mean 73.64 ± SD 14.35 kg), height 150 to 191 cm (171.07 ± 9.98 cm), BodPod data was collected and used as a standard for comparison to the DEXA based body volume formulas; (Wilson et al. 2012) and (Smith-Ryan, et al., 2017). BodPod measured BV mean of 70.36 ± SD 13.85 L, Wilson, et al. (2012) 70.88 ± 13.54 L, and Smith-Ryan, et al. (2017) 70.02 ± 14.23 L. ANOVA yielded no statistical difference between the three groups (p=.915). Among the Withers, et al. (1998) formula, paired t-test of BodPod/Withers yielded a significant difference lower than Wilson/Withers (z = -6.178, p ≤ .001) and Smith-Ryan/Withers yielded a significant difference lower than BodPod/Withers (z = -5.052, p ≤ .001). Among Wang, et al. (2005) formula, Wilcoxon signed-rank test of BodPod/Wang yielded a significant difference lower than Wilson/Wang (z = -5.816, p ≤ .001) and Smith-Ryan/Wang a significant difference lower than BodPod/Wang (z = -4.690, p ≤ .001). These significant differences indicate the predicted BV equations are not equivalent to using measured BV and yielded inaccurate results
Conclusion: The use of DEXA based BV formulas is a viable replacement for other BV testing methodologies for use in four-compartment testing models. However, both the Wilson, et al. (2012) and Smith-Ryan, et al. (2017) formulas failed to be a viable replacement for measured BodPod values. A new formula, A new formula resulted from this study. Further studies may be needed before a formula can be utilized in four-compartment models
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
Relationship Between Body Composition and Scoring Potential of Female Collegiate Soccer Players
No full textIntroduction Body composition is a commonly used metric believed to correlate to athletic performance. Traditional belief is that lower body fat will correlate to a better athletic performance. Purpose To examine the relationship between components of body composition and scoring potential of female collegiate soccer players during a season. Methods The Body composition of 15 female collegiate soccer players was collected using a BodPod (COSMED USA, INC., Concord, CA.) and Tanita SC-331S Total Body Composition Analyzer (Tanita Corporation of America Inc., Arlington Heights, IL). The subjects were tested on two occasions; August and February. The subjects body weight (BW), total body water(TBW), and body fat % (BF%) were collected. The subject’s games played, goals scored, assists, and total points were also tracked and published by EKU. Results Team data was BW 143.33±13.94 lbs., TBW 77.53±5.15 lbs., BF% 22.45±6.02%, Games playes16.93±3.45, Assists 0.8±1.61, Points 3.2±5.81. There were no significant correlations of P≥0.6 between body composition and scoring potential of the team. Data of forwards only showed BW 141.85±15.91 lbs., TBW 77.12±5.85 lbs., BF% 22.12±7.7%, Games played 18.8±0.45, Goals 3.4±2.88, Assists 1.8±2.49, Points 8.60±7.8. There were no significant correlations of P≥0.6 between body composition and scoring potential of the forwards. Discussion The data shows that the body composition of the female collegiate soccer player does not have significant relationship with the players scoring potential. There were no strong correlations between body weight, total body water, body fat % and games played, goals, assists, or points. Further research is needed to examine the effects of body composition on performance changes over a season on individual positions.https://encompass.eku.edu/swps_undergraduategallery/1168/thumbnail.jp
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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