1,720,980 research outputs found
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
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
Determination of measurement uncertainties concentrations glucose in blood using two different analytical systems, their comparison and recommendation suitable of areas clinical use
No full textkatedra biomedicínské technik
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
The system of selection of equipment for biomedical application
No full textkatedra biomedicínské technik
Methods for Assessment of the Efficiency of Medical Equipment Procurements
No full textTato práce je věnována problematice hodnocení efektivity uskutečněných nákupů zdravotnických přístrojů v ČR. Cílem práce bylo prozkoumat a navrhnout zásadní přístupy a metodologickou základnou pro účely hodnocení efektivity nákupů. Pro detailní analýzu efektivity nákupů zdravotnické techniky byl navrhnut nový neparametrický přístup za použití metody analýzy obalu dat, která nevyžaduje využití expertních názorů pro stanovení důležitosti kritérií hodnocení. Tento přístup byl praktický ověřen na vzorku nákupů přístrojů magnetické rezonance v letech 2014–2018.This thesis is devoted to the evaluation of the effectiveness of the medical equipment procurements in the Czech Republic. The aim of this study was to discover and propose essential approaches and methodology for supporting the effective and rational acquisition of new medical equipment. A new approach for the assessment of the effectiveness of individual medical equipment purchases was proposed using a data envelopment analysis that does not require the use of expert opinions for the determination of criteria weights. This method has been proven on a sample of magnetic resonance purchases in 2014-2018
Implementation and integration of central glucose measurement in the Hospital
Get PDFCílem předložené diplomové práce je podpora zavedení centrálního měření glukózy do klinické praxe nemocnice. Splnění hlavního cíle práce spočívá ve zpracování komplexní řízené dokumentace pro pořízení a zavedení centrálního systému pro měření glukózy pomocí Point-of-care testing (POCT) technologie do klinické praxe Karlovarské krajské nemocnice (KKN). Hlavní cíl práce byl rozdělen do dvou logicky navazujících dílčích částí, které využívají poznatků zpracované úvodní rešerše z dostupné odborné literatury, platné legislativy oblasti zdravotnických prostředků, metrologie a kontroly kvality v České republice. V analytické části jsou na základě rozboru stávající interní dokumentace nemocnice popsány administrativní a technické požadavky pořízení nové technologie do klinické praxe nemocnice. Dále je provedeno porovnání procesního postupu laboratorního měření glykémie a měření za využití orientačního glukometru ve stávající klinické praxi nemocnice. Dotazníkovým šetřením byly zjišťovány provozní přínosy a prvotní zkušenosti s centrálním měřením glukózy na dotčených odděleních KKN a ze zjištěných výsledků byla navržena doporučení pro efektivní využívání POCT technologie. V provozní části práce byla na základě popisu administrativní podpory a závěrů vyplývajících z analytické části navržena interní dokumentace upravující centrální měření glukózy v KKN. V rámci periodické interní kontroly kvality byla provedena reprodukovatelnost měření mezi přístroji in vitro v laboratorních a mimolaboratorních podmínkách KKN. Na základě zjištěných výsledků byla navržena doporučení pro zkvalitnění služeb.The aim of the presented thesis is to support the implementation of central glucose monitoring in the clinical practice of the hospital. The main objective of the thesis is to develop comprehensive controlled documentation for the acquisition and implementation of a central glucose measurement system using Point-of-care testing (POCT) technology in the clinical practice of the Karlovy Vary Regional Hospital (KKN). The main goal of the thesis has been divided into two logically related parts, which utilize the knowledge processed in the introductory research from available professional literature, valid legislation in the field of medical devices, metrology, and quality control in the Czech Republic. In the analytical part, based on the analysis of the existing internal documentation of the hospital, administrative and technical requirements for the acquisition of new technology for the clinical practice of the hospital are described. Furthermore, a comparison is made between the procedural process of laboratory glycemia measurement and measurement using a standard glucometer in the current clinical practice of the hospital. Operational benefits and initial experiences with central glucose measurement in the affected departments of KKN were investigated through a questionnaire survey, and recommendations for the effective use of POCT technology were proposed based on the findings. In the operational part of the thesis, based on the description of administrative support and conclusions drawn from the analytical part, internal documentation regulating central glucose measurement in KKN was proposed. As part of the periodic internal quality control, reproducibility of measurements between devices in vitro under laboratory and non-laboratory conditions at KKN was assessed. Recommendations for improving services were proposed based on the results obtained
Effective implementation of quality in a small medical facility
No full textkatedra biomedicínské technik
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
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