1,720,957 research outputs found
Injury incidence and injury patterns among male elite football players when playing in the national team
No full textBackground: An increased load on the European elite football players is seen; both physically, with more matches with the national teams and the club teams, but also mentally. To play football on the highest level induce a high injury risk with injury incidences very high, both in the national team and in the club teams. Objective: To investigate the injury risk among elite football players in UEFA Champions League when playing in their clubs compared to international matches with their national team respectively. Further the objective also was to study the injury incidence and injury pattern differences between national team players and non national team players. Materials and methods: In this study 3233 player seasons were registered for 6141 injuries from 134 UEFA Champions League team seasons, during the seasons 2001/2002 to 2009/2010. Existing data from UEFA research group consisted of injuries, exposure, anthropometric data etc. The author collected data regarding national team exposure. Definitions of injury severity, injury categorization, injury incidence are standard definitions and the definition of being national team player or not were given by the author. Results: The baseline data showed that the national team players played more matches, had more match injuries, had a higher match exposure and were younger. No large differences are seen in injury incidence in the type of injuries. Some specific injuries as Achilles tendon, low back pain and ACL are more common in matches whit the non national team players, while knee MCL injuries are more common among the national team players. The non national team players had more absence from injuries. When comparing the both groups in injury incidence in total, there were no differences. Discussion: The results of this study can be compared to other similar studies, because of the same procedure regarding injury incidence etc. as consensus. The figures in this study show the same figures as other studies in the same subject. Conclusions: The injury incidence and injury pattern do not diverge from one another or from earlier studies on the same topic. The noteworthy finding is that the players who play for the national team have not a higher injury incidence than the players who do not play for the national team
Injury incidence and injury patterns among male elite football players when playing in the national team
No full textBackground: An increased load on the European elite football players is seen; both physically, with more matches with the national teams and the club teams, but also mentally. To play football on the highest level induce a high injury risk with injury incidences very high, both in the national team and in the club teams. Objective: To investigate the injury risk among elite football players in UEFA Champions League when playing in their clubs compared to international matches with their national team respectively. Further the objective also was to study the injury incidence and injury pattern differences between national team players and non national team players. Materials and methods: In this study 3233 player seasons were registered for 6141 injuries from 134 UEFA Champions League team seasons, during the seasons 2001/2002 to 2009/2010. Existing data from UEFA research group consisted of injuries, exposure, anthropometric data etc. The author collected data regarding national team exposure. Definitions of injury severity, injury categorization, injury incidence are standard definitions and the definition of being national team player or not were given by the author. Results: The baseline data showed that the national team players played more matches, had more match injuries, had a higher match exposure and were younger. No large differences are seen in injury incidence in the type of injuries. Some specific injuries as Achilles tendon, low back pain and ACL are more common in matches whit the non national team players, while knee MCL injuries are more common among the national team players. The non national team players had more absence from injuries. When comparing the both groups in injury incidence in total, there were no differences. Discussion: The results of this study can be compared to other similar studies, because of the same procedure regarding injury incidence etc. as consensus. The figures in this study show the same figures as other studies in the same subject. Conclusions: The injury incidence and injury pattern do not diverge from one another or from earlier studies on the same topic. The noteworthy finding is that the players who play for the national team have not a higher injury incidence than the players who do not play for the national team
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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