1,721,372 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
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
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
Studio delle rotture fragili di elementi di copertura prefabbricati collegati alle travi principali con inserti metallici
No full textNella presente memoria vengono indagati alcuni aspetti delle modalità di rottura riguardanti elementi
di calcestruzzo prefabbricati collegati tra loro tramite inserti metallici, a loro volta collegati da spinotti
passanti nell’elemento di calcestruzzo. In particolare sono stati approfonditi gli aspetti legati alla rottura
per spalling del calcestruzzo attraverso analisi non lineari ad elementi finiti e confronto con modelli
analitici presenti in letteratura. Le analisi non lineari hanno messo in luce l’influenza della posizione del
foro di alloggiamento dello spinotto sui valori di resistenza e sulle modalità di rottura riscontrate. Inoltre è
stato evidenziato come la presenza di un’armatura lenta di parete nell’elemento di calcestruzzo possa
portare a notevoli benefici sulla risposta strutturale dell’elemento stesso, sia in termini di resistenza ultima
che di modalità di rottura. Nel caso in esame la presenza di armatura lenta ha consentito infatti di
aumentare la resistenza ed evitare la rottura fragile per spalling del calcestruzzo. I risultati ottenuti dalle
analisi non lineari ad elementi finiti hanno trovato un buon riscontro con alcuni modelli analitici presenti
in letteratur
Verifiche sismiche di edifici storici tramite l’analisi cinematica lineare e non lineare
No full textNel presente articolo viene presentato un metodo per la valutazione del rischio sismico di edifici storici attraverso
analisi cinematica lineare e non lineare. Il livello di rischio sismico è stimato con un indice di sicurezza sismica
definito come il rapporto tra la capacità della struttura, in questo caso ricavata con analisi cinematica, e la domanda
sismica calcolata secondo le NTC 2008. In questa memoria è stata data particolare attenzione al metodo di verifica
proposto dalla normativa italiana per i meccanismi di danno locale, sottolineando alcune criticità. Nell’articolo
viene presentato un modello a fibre in grado di considerare gli effetti di alcune caratteristiche comunemente
riscontrabili nelle strutture in muratura sulla risposta strutturale. In particolare si tiene conto degli effetti dell’attrito
interno tra malta e laterizio, dell’attrito sviluppato tra una parete ribaltate e gli elementi strutturali degli impalcati e
l’effetto stabilizzante di porzioni di pareti trasversali che partecipano al meccanismo
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
- …
