1,720,958 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
A prospective cross-sectional observational study to compare the predictive performance of four types of risk malignancy index and computed tomography and magnetic resonance imaging findings in the triage of adnexal masses at a tertiary care centre in Mumbai, India
Get PDFBackground: Accurate pre-operative differentiation between benign and malignant adnexal masses is essential for appropriate referral and management.
Methods: A prospective cross-sectional observational study was conducted from August 2023 to July 2024 in the Department of Obstetrics and Gynaecology, Topiwala National Medical College and BYL Nair Charitable Hospital, Mumbai. Sixty women with adnexal masses were evaluated using clinical parameters, ultrasound, CA-125, and four types of risk of malignancy indices (RMI I-IV). Computed tomography and magnetic resonance imaging (CT/MRI) findings were compared wherever available. Histopathology served as the gold standard.
Results: Mean age 37.4±10.4 years. Of 60 cases, 45 (75%) benign, 15 (25%) malignant. RMI IV had highest diagnostic accuracy area under the curve (AUC=0.892). CT showed 100% sensitivity and 94.4% specificity.
Conclusions: RMI IV is the most reliable index for differentiating benign and malignant adnexal masses. CT provides additional diagnostic accuracy and is recommended for equivocal cases
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
Perinatal outcome in pregnancies with nuchal cord: prospective cross-sectional study at tertiary care institute
Get PDFBackground: The umbilical cord around the neck of fetus at the time of birth is nuchal cord (NC). NC is blamed as a major cause of fetal distress and perinatal mortality. The present study was undertaken to found out the incidence of nuchal cord at delivery and its perinatal outcomes in babies born with NC.Methods: Total 500 low risk women delivered either vaginally or abdominally after 34 completed weeks of gestation were included in the study. Cases with NC at the time of delivery were taken as study group and the cases which did not have NC served as control group. Various obstetric characteristics and perinatal outcome were studied.Results: The frequency of NC found was 35.6% of all the deliveries. Women with age between 21-25 years showed the maximum presence of NC (11.4%) and NC mostly seen between 38-40 weeks of gestation (24.8%). Presence of NC had no statistical significance on the maternal age, parity, period of gestation, mode of delivery, presence of meconium stained amniotic fluid and fetal distress. Prolonged duration of labour was seen in the presence of NC. The presence of NC was directly proportional to the length of cord and umbilical cord coiling. Perinatal outcome of babies in terms of Apgar score and seen as NICU admissions rate were not statistically significant. Tight NC had a poor Apgar score needed more intensive care.Conclusions: NC is a common finding at the time of delivery. The present study suggests that NC is not associated with significant perinatal outcome
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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