1,720,984 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
UNA MAGGIORE FREQUENZA DELLE MEDICAZIONI PUÒ RIDURRE L’INCIDENZA DELLE INFEZIONI DA CATETERE VENOSO CENTRALE
No full textVariations 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
Una maggiore frequenza delle medicazioni può ridurre l'incidenza delle infezioni da catetere venoso centrale
No full textLe infezioni ospedaliere – fenomeno tuttora rilevante nella realtà sanitaria italiana e problema attentamente considerato dagli addetti ai lavori e dagli esperti, per le sue serie implicazioni in termini di rischio per la salute e la vita stessa dei pazienti – riconosce un variegato insieme di fattori e di cause, tra le quali una certa importanza è rivestita dagli accessi vascolari e, in particolare, dal posizionamento e dalla dimora dei cateteri venosi centrali (CVC). In questo caso, il rischio infettivo chiama in causa soprattutto le concrete modalità di gestione del catetere e, conseguentemente, corrette procedure di nursing sono in grado di ridurre questa complicanza. Il presente articolo presenta i risultati di uno studio, che ha comparato differenti schemi di sostituzione della medicazione del CVC, verificando l’incidenza delle complicanze infettive tra due distinti gruppi di pazienti. Il principale outcome considerato è stato l’incidenza di infezioni del CVC al momento della sua rimozione, valutata tramite esami colturali per batteri e miceti. I risultati ottenuti evidenziano una riduzione delle positività della punta del catetere nei pazienti a cui la medicazione è stata sostituita con maggiore frequenz
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
Nipple-sparing mastectomy. Preliminary results.
No full textNipple-sparing rnastectomy (NSM) combines a skin-sparing mastectorny with preservation of the Nipple Areola Complex (NACÕ). intraoperative pathological assessment of the nipple tissue Core, and immediate reconstruction, thereby permitting better cosmesis for patients undergoing total mastectomy. Radiothcrapy of the NAC was carried out in every single patient after surgery. The procedure was first performed on selected patients following a clinical research protocol. From January 2003 to June 2004, 10 patients underwent nippLe sparing mastectomy followed by reconstruction (4 of them decided also to undergo a prophylactic mastectomy on the other breast) at the Breast Unit, Policlinico Monteluce, Perugia, Italy. Patients had been accuratey selected before the operation following some criteria previously accessed by a team of specialists including the breast surgeon, the oncological physician, the radiotherapist and the plastic surgeon. Histology of the 10 NSMs confirmed invasive carcinoma in 3 cases and in siw carcinoma in the remainder. Superficial necrosis of the NAC that settled down spontanously without consequences occurred in 2 cases: loss of sensitivity of the NAC in 4 patients: I patient developed haematoma. No asymmetry was reported. All women were clear of cancer after the treatment. Nipple- sparing mastectomy is the procedure of choice on selected patients
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