1,720,956 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
The role of trace elements in the development of cardiomiopathy
No full textElementi u tragovima zastupljeni su u ljudskom organizmu u vrlo malim količinama. Odlikuju se kompleksnim interakcijama u staničnom okruženju jer vrlo lako stupaju u razne oksidacijske i redukcijske reakcije. Za elemente teških metala poznato je da uzrokuju nastanak slobodnih radikala koji uzrokuju razna oštećenja strukture i funkcije stanice. Takav mehanizam leži u podlozi raznih bolesti i stanja poput neurodegenerativnih bolesti, otrovanja, karcinogenze i starenja. Budući da su objavljena istraživanja kojima je utvrđeno nakupljanje određenih elemenata ove skupine kod oboljelih od kardiomiopatije isti mehanizam može biti odgovoran za razvoj tih bolesti ili može značajno doprinijeti njihovom razvoju. Osim oksidativnog potencijala razni metali imaju afinitet vezanja na stanične metaloproteine čime potencijalno oštećuju stanicu i drugim mehanizmima.Trace elements are present in the human body in very small quantities. They are characterized by complex interactions in the cellular environment because they very easily enter into various oxidation and reduction reactions. Heavy metals are known to generate free radicals that cause various damage to cell structure and function. Such a mechanism is present in pathogenesis of various diseases and conditions such as neurodegenerative diseases, poisoning, carcinogenesis and aging. It has been shown that these elements are elevated in some patients with cardiomyopathy, suggesting that trace elements may contribute to development of this disease. In addition to the oxidative potential, various metals have an affinity for binding to cellular metalloproteins, potentially damaging the cell by other mechanisms as well
CONNECTION BETWEEN SOCIAL CAPITAL AND SPORT SUCCESS OF YOUNG TENNIS PLAYERS
No full textNa mladog sportaša utječe niz tjelesnih, psiholoških i društvenih faktora. Društveni faktori posebno značajno utječu na razvoj mladog tenisača. Roditelji, treneri i škola su važni čimbenici u sportskoj karijeri mladih osoba. Bez njih bi ostvarivanje uspješnih sportskih rezultata gotovo bilo nemoguće. Društveni kapital predstavlja resurs koji znatno utječe na sportaša i njegovu sportsku izvedbu. Cilj ovog istraživanja je utvrđivanje povezanosti između društvenog kapitala (obitelj, škola i stručni sportski tim) i natjecateljskog uspjeha kod mladih tenisača. Ispitanici u ovome istraživanju bili su sudionici međunarodnog juniorskog ITF teniskog turnira koji se održao u Zagrebu 2019. godine (N=75; 36 tenisačica i 39 tenisača). Anketnim upitnikom procjenjivala se razina društvenog kapitala unutar obitelji, škole i stručnog sportskog tima, dok se natjecateljski uspjeh procjenjivao putem plasmana na rang listi. Rezultati istraživanja ukazuju na visoku razinu društvenog kapitala u obitelji i u stručnom sportskom timu, dok je razina društvenog kapitala u školi nešto niža. Postoji značajna povezanost između natjecateljskog uspjeha i veće razine društvene podrške u obitelji i sportskom timu kod tenisačica. Interesantno je uočiti kako bolje rangirani tenisači imaju nižu razinu društvene podrške u školi. Može se zaključiti kako razlike u dobi i spolu ispitanika značajno utječu na ovakve rezultate. Predlaže se provedba sličnog istraživanja na juniorskim turnirima veće jakosti te na većem uzorku ispitanika.Young athletes are influenced by different physical, psychological and social factors. Social factors impact young athlete's growth significantly. Parents, coaches and school are important factors in young athlete's sports career. Reaching sport success without their support would be a real challenge. Social capital is a resource that comes from social relationships and social networks. It's a resource that impacts athletes and athletic performance. This research was conducted on participants of an ITF junior tournament in tennis, he,d in Zagreb. Research included 75 tournament players (N=36 women and N=39 men). Participants filled out a questionnaire form which evaluated their social capital. Goal of this research is to determine the connection between social capital and sport success of young tennis players.
Research results show high level of school and sports team social capital. School social capital was slightly lower. Results showed that group of players with better ITF junior ranking showed lower levels of school social capital. We concluded that women tennis players with better ITF rank showed higher levels of family and sports team social capital. Men tennis players showed different results, better ranked players showed lower levels of school social capital. Conclusion is that because of the difference in age between men and women in the study correlation shows different results. Future studies should be conducted on a larger sample and on a higher grade tournament
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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