1,720,964 research outputs found
TROMBOSI VENOSE PROFONDE "IDIOPATICHE" COME MARKER DI NEOPLASIE IN FASE PRECLINICA:PROPOSTA DI PROTOCOLLO DI INDAGINE
No full textThe authors analyse the importance of the
problem of so-called "idiopathic" deep-vein
thrombosis. If onset occurs in patients aged betwe.
en 50-60 the latter may be a marker of an
existing neoplasia or one at a preclinical stage
or even “in fieri”
On the basis of their experience the authors outline a proposed study protocol
LA PRATICA DELL'"ONE DAY SURGERY": ETICA E PROCEDURE
No full textAuthors outlines a storic and scientific profile
of the «One Day Surgery» underliining as, in
the last years, we see a progressive extension
of this technique by the anesthesiological and surgica!
progresses. The need of a cost reduction
and the patient's exigence of a swift home return
decrees its conclusive statemen
IL DUPLEX SCANNER E L'ANGIOGRAFIA DIGITALIZZATA NELLA PATOLOGIA DEGLI ASSI CAROTIDEI
No full textThe Authors emphasize the Duplex-Scanner
validity in the diagnosis of sovraortic trunks
disease.
They compared 55 patients, examined first
with Duplex-Scanner, and after with Digita]
Su~btraction Angiography.
They found a significant agreement (max 20%
of stenosis percentage difference) in 87% of the
examined patients.
In Authors' opinion Duplex-Scanner - utilized
by ·an expert operator - is the choice
device for the screening of the sovraortic trunk
diseases, and in the follow-up of the operate patient
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
Pletismografia reflilling test
No full textLa pletismografia a luce riflessa costituisce una metodica non invasiva in grado di valutare la funzione della pompa muscolare del polpaccio nel ritorno venoso. La metodica è inoltre in grado di valutare gli esiti emodinamici sul ritorno venoso dopo TV
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
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