1,721,015 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
Addressing Participation Disparities in Vision Research: Social Determinants and Site Effectiveness
Get PDFVision impairment affects over 2.2 billion people globally, with nearly half of cases being preventable or untreated due to barriers in care access. Despite the value of community vision screenings in reaching underserved populations, little is known about how social determinants of health (SDOH) influence participation in vision research. This cross-sectional study, conducted across Cumberland and Lenoir Counties in North Carolina from March to July 2024, aimed to identify demographic and social factors associated with participation in community vision screenings and determine the most effective locations for identifying individuals with vision impairment.
Data were collected at various site types using convenience sampling, with 991 adults screened and 879 completing demographic and SDOH questionnaires. Results showed disproportionately high representation of Black individuals (61.4%) and women (65.8%), but low participation among Hispanic/Latino individuals (2.5%). Food distribution sites yielded the highest rates of vision impairment and were effective in reaching at-risk groups. Logistic regression analysis identified food insecurity as the only significant predictor of vision impairment (OR = 2.468, p = 0.024). These findings underscore the importance of targeting community-based sites serving socioeconomically vulnerable populations and addressing food insecurity as part of vision health outreach. Bachelor of Science in Public Healt
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
Signs of Prior Trachoma Infection among Trichiasis Surgery Patients without Trachomatous Scarring
No full textObjectives: We seek to determine if trichiasis surgery patients without visible conjunctival scarring have other signs of prior trachoma. To do this, we will determine the proportion of eyes in the study cohort with and without visible conjunctival scarring and will characterize and compare the prevalence of other signs of trachoma that exist in these two groups.
Methods: This study analyzes data from participants’ baseline ocular examinations from the MTSS trial. We characterize and compare the prevalence and severity of various eyelid characteristics across a portion of the cohort. We will also cross-tabulate conjunctival scarring with the five key other signs of trachoma for eyelids with and without conjunctival scarring.
Results: 5,002 people participated in the MTSS trial, and 2,444 eyes had TT in the late phase. Among these, 51 eyes had no visible conjunctival scarring. Almost half the eyelids without scarring had some indication of prior TT. The proportion of eyes with conjunctival scarring was much higher for severe trichiasis than for eyes without conjunctival scarring. Eyes without conjunctival scarring present with either no signs of Herbert’s Pits or pannus or the mildest manifestation of both signs. Most eyes without conjunctival scarring do not present with corneal scarring but approximately 20% of eyes have a corneal scar grade of at least 1. Both eyes with conjunctival scarring and without conjunctival scarring reported similar proportions of eyes with lower lid TT.
Discussion: The main finding of this study is that individuals without visible signs of conjunctival scarring in the field have other signs of trachoma, indicating that their trichiasis is trachomatous in nature. These eyes are thus eligible for TT surgery and should not be turned away, and it is thus crucial to consider other signs of trachoma as markers for the disease. These findings advocate for the continued provision of TT surgery for all who have trichiasis in trachoma-endemic areas.Bachelor of Science in Public Healt
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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