1,721,033 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
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
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
Mother's CD4+ Count Moderates the Risk Associated with Higher Parity for Late Postnatal HIV-Free Survival of Breastfed Children: An Individual Patient Data Meta-Analysis of Randomized Controlled Trials
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Policies and Protocols to Prevent the Spread and Costs of Clostridium Difficile Infection
Get PDFBackground: Clostridium Difficile Infection (CDI) is a highly contagious, potentially lethal, and often preventable hospital acquired infection that costs the U.S. healthcare system billions of dollars annually. Because of the serious consequences and expensive nature of CDI, it is predicted the Centers for Medicare and Medicaid Services will begin following CDI trends and basing reimbursement on how well a facility can protect against this infection.
Objectives: The overall purpose of this quality improvement project was to develop, implement, and evaluate an evidenced-based protocol to guide the staff of the University of Cincinnati Medical Center (UCMC) to recognize and prevent the spread of CDI to all hospitalized patients. Methods: A multidisciplinary committee was formed to evaluate UCMC’s current CDI practices and determine which evidence-based interventions should be included in any policy changes. After a comprehensive review of the literature and staff interviews were performed, the CDI prevention interventions selected for this project included: standardized room cleaning, use of ultraviolet lighting, updated antimicrobial stewardship practices, disposable gown use, and staff education.
Results: After a review of the isolation protocol there were practices found that were not conducive to preventing the spread of CDI, and the committee focused on three aims: instituting reusable gowns while changing the process for ordering isolation supplies, education through online PowerPoint instruction, and implementing changes on a pilot unit. These changes resulted in 19 fewer cases of CDI at UCMC in the first six months of the current fiscal year. Conclusions: A multicomponent, interprofessional, evidence-based, CDI prevention protocol may decrease the risk of hospital-acquired infections.No embarg
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