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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
LE OSPEDALIZZAZIONI PER BRONCHIOLITE NEL PRIMO ANNO DI VITA NELLA REGIONE VENETO
No full textINTRODUZIONE: Le bronchioliti rappresentano la patologia respiratoria più frequentemente oggetto di ospedalizzazione tra i bambini nel primo anno di vita nei paesi industrializzati, caratterizzate da un picco di incidenza nei mesi invernali e che nel corso degli ultimi anni hanno evidenziato tassi di ricovero tendenzialmente in aumento.
In considerazione del fatto che in letteratura è riportato come uno degli agenti causali maggiormente implicato sia il virus respiratorio sinciziale (RSV), nel dimensionare il fenomeno, descrivendone l’andamento temporale in ambito regionale, è stata condotta un’analisi retrospettiva, indagando i casi incidenti di ricovero ospedaliero per bronchiolite e in particolare quelle sostenute da RSV. MATERIALI E METODI: Avvalendosi dell’archivio regionale delle schede di dimissione ospedaliera è stato condotto uno studio retrospettivo includendo nel campione tutte le dimissioni dei cittadini veneti al di sotto dell’anno di età, su scala nazionale, nel quinquennio 2008-2012, rappresentando i risultati in termini di tasso di ospedalizzazione (TO) per 1.000 residenti.
Le dimissioni sono state identificate attraverso gli specifici codici diagnosi ICD9-CM 466.11 “Bronchiolite acuta da virus respiratorio sinciziale (RSV)” e 466.19 “Bronchiolite acuta da altri agenti infettivi”. RISULTATI: Nel corso del quinquennio oggetto dell’analisi, a fronte di un totale di 5.858 dimissioni con diagnosi di bronchiolite, si è assistito a 5.110 dimissioni relative a soggetti di età inferiore all’anno, in riferimento ai quali si è evidenziato un TO pari a 23,4, più elevato nel sesso maschile (26 Vs. 20,7; OR: 1,26; IC95%: 1,19-1,33; p<0,05), il 28% delle quali sostenute da RSV (TO: 6,5), anch’esse più elevate nel sesso maschile (6,9 Vs. 5,9; OR: 1,17; IC95%:1,05-1,30; p<0,05).
La DM era pari a 5,15±5,72 gg., più elevata nelle RSV (6,2 Vs. 4,7; p<0,05), in occasione delle quali è risultato maggiore anche il ricorso alla terapia intensiva (OR: 4,47; IC95%: 3,12-6,42; p<0,05), complessivamente pari a 2,8% (n. 142).
Oltre alla contenuta letalità (n. 3 casi 0,06%), confermate inoltre sia la stagionalità delle ospedalizzazioni che il maggior interessamento dei soggetti nei primi 3 mesi di vita, con il picco di incidenza tra i 2 e i 3 mesi di vita; dall’analisi emerge tuttavia una forte variabilità nell’andamento temporale sia del TO (range 18-27,6) che della percentuale di bronchioliti sostenute da RSV (18%-36%).
La stratificazione del campione in base alla cittadinanza ha evidenziato come la non appartenenza all’Unione Europea costituisse un fattore di rischio sia complessivamente (OR: 1,71; IC95%: 1,60-1,82; p<0,05) che per quelle sostenute da RSV (OR: 1,48; IC95%: 1,30-1,68; p<0,05), senza differenze significative tra cittadini italiani e di altri stati membri dell’Unione Europea; assolutamente priva di significatività invece la condizione di non residente in Italia. CONCLUSIONI: L’analisi, oltre a confermare il noto quadro epidemiologico, pur caratterizzato da una certa variabilità dal punto di vista dell’andamento temporale, evidenzia come, oltre a fattori clinici non direttamente desumibili da dati amministrativi, le caratteristiche socio demografiche rappresentino un indicatore di rischio meritevole di approfondimento.
A tal proposito alcuni studi hanno sottolineato la necessità di interventi preventivi su alcuni fattori comportamentali modificabili nell’assistenza al bambino con noti fattori di rischio in occasione dei periodi epidemici, con altri che tuttavia auspicano l’adozione di strategie preventive indipendentemente dalla presenza di fattori di rischio
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
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
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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