1,720,961 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
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
Preparation and properties of Fe2O3-ZnO-P2O5 glasses
No full textByla připravena skla systému xFe2O3?(50-x)ZnO?50P2O5 (x = 0; 0,1; 0,5; 1; 1,5; 2; 2,5; 3; 4; 5; 7,5; 10; 15; 20; 30; 35; 40 a 50 mol. %). Vzorky připravených materiálů byly charakterizovány pomocí hustoty, teploty skelné transformace, deformační teploty měknutí, koeficientem teplotní roztaţnosti, optickou propustností, elipsometrií, a měřením teplotní závislosti stejnosměrné elektrické vodivosti. Struktura látek byla studována pomocí Ramanovy a infračervené spektroskopie.Samples of glass system xFe2O3-(50-x)ZnO-50P2O5 (x = 0; 0,1; 0,5; 1; 1,5; 2; 2,5; 3; 4; 5; 7,5; 10; 15; 20; 30; 35; 40 a 50 mol. %) were prepared. The prepared materials were characterized by density, glass transition temperature, deformation temperature of softening, expansion coefficient, optical transmittance, ellipsometry and measuring of the temperature dependence of dc electrical conductivity. Structure of materials was investigated by Raman and infrared spectroscopy.Katedra obecné a anorganické chemieDiplomant seznámil komisi se svojí diplomovou prací.Dále reagoval na připomínky oponenta. Zodpověděl otázky členů komise:Byla měřena chemická odolnost skel?Diskutujte infračervenou spektroskopii.Diskutujte dobu tavení ve smyslu těkání P2O5?Diskutujte barvu připravených materiálů a vodivost skel.Diskutujte pokles interference v transmisním spektru.Diskutujte typ vodivosti polaron hopping.Diskutujte přípravu studovaných materiálů.Dokončená práce s úspěšnou obhajobo
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
Issues of punishment for traffic offences
No full textRoad transport intervene in life perhaps each of us. Road transport play to journey to work, spending, medical care, no matter what already like drivers or co - driver or embarkment agents collective transport persons. At present is already quite common that the family personal two car, sometimes and more. S crescendo number vehicles in our households thereby fall and in - service on way, shoot up number enmity on roads, that often end in accident. Accident are also most frequent case offences or punishable act in road transport. Most accidents hasn't calamitous consequences, every day we're news media, especially television and internet, confronted with tragic aftermath serious accidents, that happen in all limits Czech republic. Unfortunately like general prevention these jerked - in - fillings and news malfunction so always speed ill general drift on the up grade of the number of accident stop. In his work first delimitate conception transport and road transport, try to explicandum punishable act in transport and will describe individual punishable act, that come into question like punishable act in transport. Most extensive volume of work will devoted punishments attempt life behind punishable act in road transport, when first carry out common expose punishments and purpose punishment and after it take..
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