1,720,963 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

    2022-RA-1512-ESGO Multidisciplinary and tailored management in young patients with borderline ovarian tumor recurrence: a case series

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    Introduction/Background: In young women with a recurrence of borderline ovarian tumor (BOT) a second conservative treatment for the preservation of reproductive potential and endocrine function should be mandatory. In our study, we reported three cases of ovarian BOT recurrences assessed to oncofertility consultation and underwent fertility sparing surgery (FSS), highlighting the importance of the tailored clinical management in the context of a multidisciplinary meeting. Methodology: From July 2020 to April 2022, we managed three cases of young women with controlateral ovarian BOT recurrence after unilateral adnexectomy. Median age at diagnosis was 26 years (I.Q.R 25–28). After multidisciplinary meeting each patient has been addressed to oncofertility consultation with the gynecologic oncologist and the reproductive physician. Two patients had strong desire to conceive furthermore they underwent a controlled ovarian hyperstimulation (COH) with concomitant letrozole and ovarian cryopreservation. In one case the ART (assistedreproductive-technology) procedures has been performed with tumor onsite. Results: Second surgery consisted in unilateral laparoscopic cystectomy in all cases. In those patients who have undergone COH, two and five mature oocytes were cryopreserved, respectively. After 11 months of surgery one patient became pregnant spontaneously and she gave birth at 39 weeks with an excellent obstetrical outcome. In one case the oocytes cryopreservation has been rejected by the patient, but the endocrine function has been preserved. Conclusion: In young women, with BOT ovarian recurrence, a second conservative treatment should be always considered and an oncofertility consultation should be recommended. Clinical management must be tailored on a case-by-case basis by a gynecologic oncologist and reproductive physician meeting

    2022-RA-1155-ESGO Feasibility of hand assisted laparoscopic sentinel node biopsy in vulvar cancer using combined radioactive and fluorescence guidance

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    Introduction/Background: The aim of this preliminary retrospective study was to assess the feasibility and accuracy of Indocyanine Green (ICG) sentinel lymph node (SLN) sampling using a laparoscopic camera during vulvar cancer staging. Methodology: Retrospective study. Between 2016 and 2022, 9 women with diagnosis of vulvar cancer underwent radical vulvectomy and inguinofemoral lymphadenectomy; in 2 (22%) selected cases we performed ICG SLN mapping using the IMAGE1 laparoscopic camera combining with Tc99(m)-nanocolloid during open surgery. Results: The median age of patients was 73 (range 84–60) years. Mean operative time 212.5 minutes. The overall detection rate of SLN mapping was 100%. No post-operative short or long-term complications related to the procedure were observed. Conclusion: Real-time NIR technology supported by the IMAGE1 S by Storz is a reliable system and represents a consolidated method for SLN mapping in selected cases with vulvar cancer. In our study we confirmed the feasibility of Hand-Assisted Laparoscopy during an open procedure to detect groin SLN with ICG in vulvar cancer. This approach can be used in combination with Tc99(m)-nanocolloid, increasing the detection rate or it can be an appropriate option to detect SLN in those countries where Tc99(m)-nanocolloid is not available or cannot be practiced. The use of laparoscopic camera for ICG SLN mapping seems to be accessible and inexpensive. Further studies are needed to evaluate the accuracy and oncological outcomes

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We 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

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    We 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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