1,720,961 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
e-Health Literacy among medical students
No full textBackground: The struggle against fake medical news, nowadays widely spread by web sources, is a main issue in public health especially in a pandemic period. Even among medical students, there is a lack of eHealth literacy (eHL) skills to solve medical problems. The Italian Medical Doctors Federation (FNOMCeO) promoted a Web source as a first-aid communication kit for basic notions in health hot-topics named ‘‘dottoremaeveroche’’ (DMVEC). This study aims to evaluate its effectiveness in improving eHL.
Methods: Between April and November 2019, medical students from the University of Firenze (Italy) joined a cross-sectional web-based survey before and after accessing the DMVEC Web source. The 8-item self-assessment tool (IT-eHEALS) was used to examine subject’s eHL, in addition to questions on source’s features and its quality. All responses were rated on a 5-points Likert scale. Changing of abilities’ perception was assessed using Wilcoxon
test.
Results: A total of 329 joined the survey, 42% male, mean age of 20.6±2.1. Participants felt moderately confident in eHL, in fact the initial eHEALS overall mean score was 3.6±0.7. Students had a good perception on how to find helpful health resources (mean score 3.9±0.8) and how to use the Internet to answer health questions (mean score 3.8±0.9), but their ability in using this information to make health decisions was low (mean
score 2.9±1.1). All items improved after the use of DMVEC, with overall mean score of IT-eHEALS increasing to 4.3±0.6 (p < 0.0001). Regarding source’s quality, mean score related to transparency of sources, an aspect underestimated at first, increased from 3.5±1.2 to 4.7±0.7 (p < 0.0001).
Conclusions: Low levels of eHL can damage public health efforts, as seen during COVID19 pandemic. DMVEC effectiveness in medical students demonstrated that the scaling up to the general population of online educational interventions, with further implementation, could help in tackling infodemic and fake news spreading.
Key messages: Moderate levels of eHL among medical students could reflect lower levels in general population, highlighting this as critical issue in public health. Educational programs addressed to Health professionals could be adapted and empowered considering general population as target
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
Digital Health Literacy and Infodemic: the impact on Italian medical students between 2019-2020: Valentina Moretti
No full textBACKGROUND: The COVID-19 infodemic is putting pressure on public health systems to control the pandemic. With the internet and social media playing a key role in emergency communication, digital health literacy (DHL) can be considered a determinant of health. This study aims to assess the impact of infodemic on the skills of medical students, for whom low levels of DHL may affect the ability to identify the best available medical evidence. METHODS: A cross-sectional web-based survey was conducted at the University of Florence (Italy) in Apr-May 2019 (pre-pandemic period) and in Nov-Dec 2020 (pandemic period) to investigate DHL skills. Two different cohorts of students, both in their first year of medical school, participated in the survey. The 8-item self-assessment tool (IT-eHEALS) with a 5-point Likert scale was used to examine DHL. The change in perception of ability between the two cohorts was examined using the Wilcoxon test. RESULTS: A total of 329 students participated in the survey in 2019 (F: 58.1%; mean age 20.6±2.1) and 341 in 2020 (F:61.9%; mean age 19.8±2.0). In 2019, participants’ DHL level was moderate with a IT-eHEALS overall mean score (MS) of 28.4±5.8. Students had a good idea of how to find helpful health information (MS 3.9±0.8) and how to use the web for this purpose (MS 3.8±0.9), but they were less confident about the usefulness of the information they received (MS 2.9±1.1). In 2020, the medical students’ DHL level deteriorated as the overall MS of IT-eHEALS decreased to 23.4±7.2 (p < 0.01). The scores of the IT-eHEALS items were significantly lower and students indicated that they found it difficult to assess the information they found (MS 2.4±1.1; p < 0.01). CONCLUSIONS: DHL can contrast infodemic, but the latter in turn may have a negative impact on perceived DHL skills if personal knowledge base is not well structured. Training programmes for medical students as future health care providers should be reinforces to guide their practise. KEY MESSAGES: Assessing digital health literacy is the first step in directing public efforts towards empowering educational programmes to improve health literacy. Medical students, as future health professionals, should be able to use the best evidence to help their patients identify healthy beliefs and behaviours to manage in health emergencies
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
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