1,721,046 research outputs found
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
Cancer Epidemiol
Full text linkBackground:The twin prevention strategies of HPV vaccination and cervical cancer screening reduce new cases and averts deaths, yet women still develop or die from cervical cancer. To assess and better understand the burden of cervical cancer in Oklahoma, we analyzed incidence and mortality trends in Oklahoma from 1999 to 2013.Methods:We obtained age-adjusted cervical cancer incidence and mortality rates and calculated standardized rate ratios (RR) for women in Oklahoma compared to the US. To evaluate temporal changes in annual age-adjusted incidence and mortality, we calculated the annual percent change (APC) using the Joinpoint Regression Program.Results:We observed higher age-adjusted incidence (RR: 1.2; 95% CI: 1.1, 1.3) and mortality (RR: 1.2; 95% CI: 1.1, 1.2) rates among women in Oklahoma compared to the US. The overall incidence and mortality rates in Oklahoma were 9.7 and 2.9 per 100,000 women, respectively. In Oklahoma, the highest age-adjusted incidence rates were in American Indian/Alaska Native (AI/AN) (14.8 per 100,000 females) and Asian or Pacific Islander (API) (11.7 per 100,000 females) women and the highest mortality rates were in AI/AN (4.5 per 100,000 females) and African American (AA) (3.9 per 100,000 females) women. Incidence rates decreased for AA women (APC: 124.0; 95% CI: 127.7, 120.2), but were stable for all other races and ethnicities in Oklahoma (APC: 120.8; 95% CI: 122.2, 0.7). A stable trend for mortality was observed in Oklahoma (APC: 0.1; 95% CI: 122.2, 2.5) each year.Conclusion:Women in Oklahoma had a higher cervical cancer incidence and mortality rate than the US. A disproportionately higher incidence of cervical cancer among AI/AN and API women and deaths among AI/AN and AA women were observed signaling continuing racial disparities.R25 MD011564/MD/NIMHD NIH HHS/United StatesU58 DP005513/DP/NCCDPHP CDC HHS/United State
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
Prev Med
Full text linkVulvar cancer incidence has been rising in recent years, possibly due to increasing exposure to human papillomavirus (HPV). We assessed incidence rates of HPV-associated and non-HPV-associated vulvar cancers diagnosed from 2001 to 2017 in the United States (US). Using population-based cancer registry data covering 99% of the US population, incidence rates were calculated and stratified by age, race/ethnicity, stage, geographic region, and histology. The average annual percent change in incidence per year were calculated using joinpoint regression. From 2001 to 2017, the incidence of HPV-associated vulvar cancers increased by 1.2% per year, most notably among women who were aged 50-59\ua0years (2.6%), 60-69\ua0years (2.4%), and\ua0 65\ua070\ua0years (0.9%); of White (1.5%) and Black (1.1%) race; diagnosed at an early (1.3%) and late (1.8%) stage; and living in the Midwest (1.9%), Northeast (1.4%), and South (1.2%). Incidence increased each year for HPV-associated histologic subtypes including keratinizing (4.7%), non-keratinizing (6.0%), and basaloid (3.1%) squamous cell carcinomas (SCCs), while decreases were found in warty (2.7%) and microinvasive (5.5%) SCCs. HPV-associated vulvar cancer incidence increased overall and among women aged over 50\ua0years while remaining stable among women younger than 50\ua0years. The overall incidence for non-HPV-associated cancers was stable. Continued surveillance of HPV-associated cancers will allow us to monitor future trends as HPV vaccination coverage increases in the US.CC999999/ImCDC/Intramural CDC HHSUnited States
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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