1,720,970 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
Inactivation of Surrogate Coronaviruses on Hard Surfaces by Healthcare Germicides
Get PDFThe SARS coronavirus (SARS-CoV) was identified as the cause of severe acute respiratory syndrome (SARS) following the worldwide 2003 outbreak. The spread of SARS in healthcare settings and the presence of SARS CoV nucleic acids on hospital surfaces in outbreak settings suggest that surfaces could potentially play a role in the spread of SARS in healthcare environments. Disinfection of hospital surfaces may interrupt virus transmission, but there are little data on the effectiveness of germicides commonly used in healthcare against corona viruses on surfaces. The goal of this research was to test the efficacy of six standard healthcare germicides for inactivation of surrogate corona viruses on environmental surfaces. The germicides tested were (1) Steris Vesphene® IIse Non-sterile Disinfectant Cleaner (9.09% o-phenylphenol, 7.66% p-tertiary amylphenol), (2) 70% ethanol, (3) chlorine bleach (6.0% sodium hypochlorite), (4) Cidex® OPA (ortho-phthalaldehyde), (5) Purell® Instant Hand Sanitizer (62% ethanol), (6) Clorox® Anywhere Hand Sanitizing Spray (71% ethanol). These were tested for virucidal activity against two surrogate coronaviruses, Mouse Hepatitis Virus (MHV) and Transmissible Gastroenteritis Virus (TGEV). MHV and TGEV were dried onto stainless steel surfaces, exposed to a germicide at its use dilution for one-minute contact time, and assayed for infectivity in cell culture. For TGEV, log[10] infectivity reductions were: 70% ethanol=3.2; phenolic=2.0; Cidex OPA=2.3; 1:100 chlorine bleach=0.35; 62% ethanol=4.0; and 71% ethanol=3.5. For MHV, they were: 70% ethanol=3.9; phenolic,=1.3; Cidex OPA=1.7; 1:100 chlorine bleach=0.62; 62% ethanol=2.7; and 71% ethanol=2.0. Of the healthcare germicides tested, only the ethanol effectively reduced infectivity of the two coronaviruses by >3 log[10] after an exposure time of one minute. Cidex OPA was somewhat effective, with >2 log[10] reduction, and 1:100 chlorine bleach was ineffective, with <1 log[10] reduction. MHV and TGEV were reduced to a similar extent (within 0.5 log[10]) by the germicide tested. The results of this study suggest the need for care in choosing effective germicides against viruses like SARS CoV.Master of Science in Public Healt
J Public Health Manag Pract
Get PDFOpioid-involved drug overdose deaths have been a growing concern in the United States for several decades. The Centers for Disease Control and Prevention identified several strategies to address the opioid overdose epidemic, including increased availability of and access to medication-assisted treatment and guidance on safer opioid prescribing practices. Telehealth offers the potential for increasing access and availability to these strategies, and laws governing telehealth have implications for their utilization. To understand how state telehealth laws intersect with the opioid overdose epidemic, we conducted a legal mapping study, a type of legal epidemiological assessment, of statutes and regulations that intersect at telehealth and opioids. This search yielded 28 laws from 17 states. These laws intersect both telehealth and the opioid overdose epidemic in different ways including prescribing limitations, opioid treatment through medication and counseling, patient plan review, and professional collaboration. Continued legal and policy surveillance is needed to be able to evaluate the impact of law in addressing opioid overdose outcomes.CC999999/ImCDC/Intramural CDC HHSUnited States
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
J Law Med Ethics
Get PDFFederal, state, and local laws shape the use of health information for public health purposes, such as the mandated collection of data through electronic disease reporting systems. Health professionals can leverage these data to better anticipate and plan for the needs of communities, which is seen in the use of electronic case reporting.CC999999/ImCDC/Intramural CDC HHS/United State
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