1,721,308 research outputs found
Intelligenza Collettiva e Valore di Mercato dei Calciatori: il Caso Transfermarkt
No full textThis article aims at analysing the role of Swarm Intelligence or the
so-called Wisdom of Crowds in determining the players’ transfer market value in the
Italian Serie A. We use information provided by the web site Transfermarkt and collect
data on 1,620 players of Italian Serie A, from season 2007/08 to 2016/2017, creating a
panel of 4,486 observations. Using traditional variables on players characteristics like
age, both linear and squared, games played and goals in the season under investigation,
and wages provided by La Gazzetta dello Sport, we estimate a Fixed Effects model both
on the aggregate sample of players and differentiating by their position on the field. We
find that all variables are statistically significant and the relationships with the players’
market values provided by Transfermarkt are consistent with those previously obtained
by the sport economic literature. Moreover, introducing fixed effects associated both to
teams and seasons, we establish the value of the transfer market added by each single
team in the evaluation of the Transfermarkt experts, so ranking the clubs. In addition,
we show that taking the 2007/08 as the reference season, the players’ transfer market
value has been reducing dramatically over the last years in the opinion of Transfermarkt
experts, so menacing the financial stability of Italian clubs exceedingly oriented to
capital gains coming from players transfers, instead of exploiting traditional source of
revenues like game tickets, merchandising, TV rights, sponsorships, and stadiums
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
Photoinduced dynamics in a photosensitive side chain polymeric liquid crystal by quasielastic and inelastic neutron scattering
No full textVariations 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
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
The (surprising) gender earnings gap in winter sports: The impact of pool size on the returns to performance
No full textFrick B, Haase P, Scharfenkamp K, Simmons R, Wicker P. The (surprising) gender earnings gap in winter sports: The impact of pool size on the returns to performance. In: Rodriguez P, Taks M, Koning R, eds. Essays on Sports Economics in Memory of Stefan Kesenne. Gijon: Ediciones de la Universidad de Oviedo; In Press: 113-128
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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