1,721,337 research outputs found
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
Influence of intervals of radiant heat performance and pacing dynamics during rowing exercise
No full textThe purpose of this study was to investigate whether intervals of radiant heat during thermoneutral exercise altered either the performance outcome or the dynamics of pacing within the exercise bout.
Eleven male participants (VO2peak; 56 ± 12 ml·kg^-1·min^-1) performed three 5000m exercise trials on a rowing ergometer in three different conditions, in a random order. The participants were either: non-warmed (NW), warmed (W), or periodically warmed in intervals throughout each trial (IW). Warming was achieved using radiant heat lamps to raise the localised environmental temperature from 18°C to 35°C. Intervals of warming were applied over fixed periods of the 5000m bouts between 1000-2000m (W1) and 3000-4000m (W2).
The results of the experiment demonstrated that performance time and average power output of the 5000m matched intensity trials were not significantly different between conditions (p=0.10 ; p=0.189). However, the application of warming significantly reduced intra-trial power output during the first (W1) interval in the IW condition (p=0.03) but not during the second (W2) warming interval (p=0.10). Tsk increased by 0.51°C (p=0.05) in response to the application of warming during W1 in the IW condition and by 0.15°C in W2 (p=0.28). No significant between-condition differences were observed in Tc throughout the trials.
These findings suggest that an abrupt change to environmental conditions brought about through intervals of radiant warming can affect the transient pacing dynamics of an exercise bout, but not necessarily impact overall performance time. Performance time appears unaffected by intervals of radiant heat during an exercise bout, although further work is required in more challenging dynamic environmental conditions
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
Physical activity behaviour in the tropics
No full text* The chapter is free to read on the publisher website.\ud
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First we reviewed studies examining the role of climate on physical activity (PA) behavior. This highlights the limited knowledge and guidelines currently exist on the moderating influence of a tropical or hot climate on the PA behaviors of individuals. Secondly, we examined the role climate on PA in children and clinically obese individuals. Contrary to previous findings from Caucasian young children, our data on habitual PA levels in Hong Kong primary school-aged children seem to suggest no seasonal variations. From the Chinese medicinal perspective, 'sweating' was considered as a sign of good health as expressed by the Hong Kong young children we recently interviewed. Therefore, Hong Kong children and parents may regard PA in the heat as beneficial to health. Alternatively, the increasing physiological evidence indicates that young children's thermoregulatory ability during exercise in the heat is not necessarily inferior to that of adults, thus biologically, children's habitual PA may not be prone to climatic changes in the tropics as commonly believed. Given the possible subjective climatic constraints, Hong Kong young children appear to favor indoor sporting options like swimming and activities that are likely to generate 'breeziness'. All of the above arguments appear to lend support to human's adaptiveness to their environmental demands. Finally we discuss the difficulties and barriers to exercise of morbidly obese women in thermally comfortable conditions. We will extrapolate findings to tropical conditions, examining the likelihood of exercising with severe obesity in the tropics. We conclude that humans adapt to their environmental demands. However, there is a need to examine the influence of humid tropical conditions on physical activity and exercise behavior and develop evidence based guidelines for these environmental conditions. © 2014 by Nova Science Publishers, Inc. All rights reserved
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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