1,721,039 research outputs found
A rare case of giant gastric GIST with cystic appearance successfully treated by upfront conservative resection and adjuvant treatment: case report
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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
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
Sorveglianza dell’abitudine al fumo nell’età evolutiva.
No full textLa Regione Lombardia ha attuato dal 2005 un programma di sorveglianza dell’abitudine al fumo tra i giovani in collaborazione con la Sezione di Igiene del Dipartimento di Medicina Preventiva, Occupazionale e di Comunità dell’Università di Pavia.
Il programma prevede il rilievo dell’abitudine al fumo a cadenza quadriennale mediante la somministrazione di un questionario a un campione rappresentativo di studenti di III media inferiore, II e V media superiore della Regione Lombardia.
A tale scopo all’inizio dell’anno scolastico 2005-2006 sono stati reclutati 12000 studenti delle classi interessate mediante un campionamento a “cluster”, utilizzando i dati forniti dal Ministero dell’Istruzione (110 classi di III media, 229 di II superiore e 262 di V superiore), scelte a caso tra le scuole della provincia di ciascuna Azienda Sanitaria Locale in base alla percentuale di studenti presenti nel territorio e per le superiori ulteriormente suddiviso in base alla tipologia di Istituto. La somministrazione del questionario autocompilato è stata eseguita a scuola dagli operatori sanitari di tutte le 15 Aziende Sanitarie della Lombardia.
Hanno partecipato all’indagine 11470 studenti, 6050 maschi e 5420 femmine (2478 di III media inferiore, 4462 di II superiore e 4530 di V superiore).
La prevalenza di fumatori abituali (almeno 1 sigaretta alla settimana) in III media inferiore è risultata del 6% (per i maschi 6,6% e per le femmine 5,4%). Il numero medio di sigarette fumate alla settimana è di 9 sigarette; il 43,4% dei ragazzi fuma ogni giorno.
In II media superiore la prevalenza di fumatori aumenta considerevolmente, raggiungendo il 26,5% (M=26,9% e F=26,3%) con una media di circa 8 sigarette fumate al giorno; l’80% fuma tutti i giorni.
In V superiore la prevalenza aumenta ulteriormente fino al 33,2% (33,9% M e 32,7% F). Il numero medio di sigarette fumate al giorno è sovrapponibile a quello degli studenti di II e l’84,4% dei fumatori asserisce di fumare tutti i giorni
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