1,720,970 research outputs found
DEVELOPMENT OF A PASSIVE SURVEILLANCE SYSTEM FOR THE MONITORING AND THE MANAGEMENT OF POTENTIAL HOSPITAL-ACQUIRED INFECTIONS (HAIS) IN A VETERINARY UNIVERSITY HOSPITAL (VUH).
No full textEFFICACIA DELL’ACQUA ELETTROLIZZATA ALCALINA NELLA RIDUZIONE DELLA CARICA BATTERICA SU SUPERFICI DESTINATEAVENIREACONTATTOCONALIMENTI
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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
PULSED ACTIVE SURVEILLANCE FOR THE EVALUATION OF COMMENSAL ANTIMICROBIC RESISTANT BACTERIA IN A SMALL ANIMAL VETERINARY UNIVERSITY HOSPITAL: PRELIMINARY RESULTS
No full textEmergence of multidrug-resistant (MDR) bacteria is a massive threat to both human and animal health.
Veterinary University Hospitals (VUHs) are considered high-risk environments for the selection and transmission
of MDR agents (1) due to the high-density of referred patients and the presence of students. Some of the most
frequently isolated MDR bacteria in veterinary medicine are extended-spectrum betalactamase (ESBL) and
carbapenemase (CPE)-producing Enterobacteriaceae and methicillin-resistant Staphylococci (MRS). Those MDR
bacteria are frequently involved in healthcare-associated infections (HAIs) and outbreaks (2). Like in human
settings, a microbiological surveillance system is an important tool to estimate MDR bacteria rates, as well as to
prevent HAIs and to serve as a database for infection control. Since November 2020, a surveillance plan has started
at the Small Animal Clinic of the Bologna VUH. This plan includes a pulsed active surveillance with periodic sessions
of one month, performed every four-months, that aimed at monitoring asymptomatic MDR bacteria carriers rate at
the time of hospital admission and at discharge, MDR bacteria-associated risk factors, the % of MDR bacteria
acquisition and its trend over time. For every session, 25 patients, hospitalized for at least 48 hours, were sampled
at the time of hospital admission and before discharge. Rectal and oral swabs were respectively cultured into
selective media for ESBL and CPE-producing Enterobacteriaceae, and for MRS. Owners of included pets were asked
to fill a consent form, as well as to fill a survey to investigate potential risk factors for MDR exposure (e.g.,
comorbidities, previous antimicrobial treatments, ...). Preliminary results obtained from 3 sessions of pulsed active
surveillance and a total of 75 investigated patients indicated a % of MDR bacteria carriage of 45,3% (95% CI, 34-
56,6) at the admission and of 65,3% (95% CI, 54,5-76,1) at discharge, with a % of MDR acquisition of 38,3% (95%
CI, 27,3-49,3). Risk factors for acquisition were >6 days of hospitalization (p=0.017844) and antimicrobial treatment
during hospital stay (p=0.01357). ESBL-producing Escherichia coli was the most frequently isolated species. Those
preliminary results need to be extended in terms of number of patients and further analyzed by genotypic and
phenotypic characterizations of isolates to better define resistance patterns and perform an epidemiologic
evaluation
PULSED ACTIVE SURVEILLANCE FOR THE EVALUATION OF COMMENSAL ANTIMICROBIC RESISTANT BACTERIA IN A SMALL ANIMAL VETERINARY UNIVERSITY HOSPITAL: PRELIMINARY RESULTS
No full textDispelling 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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