1,721,014 research outputs found
Rapid and reliable self-screening for nutritional risk in hospital outpatients using an electronic system
No full textObjectiveThis study examined an electronic nutritional self-screening procedure for feasibility and for reliability, rapidity, and ease of use by hospital outpatients.MethodsOne hundred sixty consecutive patients (ages 18–87 y) attending a gastroenterology clinic measured their weight and height using a modified digital weight and height machine, which transmitted results to a computer. Following input of reported weight loss in the previous 3 mo to 6 mo, malnutrition risk by the Malnutrition Universal Screening Tool (MUST) was instantaneously calculated. The duration and ease of undertaking screening were noted. Screening also was undertaken by a health care professional.ResultsOf the patients in the study, 21.3% were at risk for malnutrition (medium + high risk). There was perfect agreement (kappa = 1.00) between self-screening and health care professional screening, between test–retest self-screening, and between two methods of measuring height (facing toward and away from the stadiometer). A low within-patient coefficient of variation was found for measurement of weight (<0.2%), height (<0.35%) and body mass index (<0.4%), except for two measurements in which height was recorded before correct positioning of the sliding headpiece. The overall time to self-screen was 1.29 ± 0.57 min but it was 2.81 ± 0.92 min in those aged ? 75 y. Of the participants, 96.2% rated self-screening as very easy (71.9%) or easy (24.3%) and 3.8% (predominantly patients ages ? 75 y) difficult.ConclusionThe study provides evidence that electronic nutritional self-screening can be rapid, easy, reliable, and feasible in a clinical setting. Equipment specifically designed for self-screening and use in other types of patients and settings could facilitate appropriate and routine implementation of self-screening
Post operative conventrations of gherlin and the acute phase response in patients undergoing major vascular surgery
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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
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