1,721,011 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

    Radiation oncology of lung cancer in the 21st century : a view from building x

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    Inaugural lecture delivered on 05 September 2013Branislav Jeremic obtained his medical degree at the University of Belgrade, Serbia. He followed this with a radiation oncology residency – finishing it in 1987 at the age of 29 – after which he obtained his PhD degree in neurooncology at the University of Kragujevac, Serbia in 1992. Having expressed an early interest in pursuing an academic career, he occupied various posts leading to the post of full Professor at the University of Kragujevac, Serbia. He embarked on clinical research in lung, head and neck, and brain tumours, mostly investigating optimisation of concurrent radiation therapy and chemotherapy in locally advanced disease. He designed and executed more than 30 clinical trials in this setting, which resulted in more than 190 peer reviewed papers in major oncological journals worldwide. He frequently visits various leading institutions around the world and is frequently invited as Visiting Professor (Harvard, Mayo Clinic) and lecturer worldwide. For his intriguing ideas he was granted prestigious fellowships and awards, such as those from the Japanese Society for the Promotion of Science and the Alexander von Humboldt Foundation, including the Friedrich Wilhelm Bessel Prize. As staff radiation oncologist of the International Atomic Energy Agency (IAEA) he shared with other staff and the director of the IAEA the Nobel Peace Prize in 2005 and was responsible for organising the resulting continental (African) event in Cape Town in 2006. Since December 2012, he occupies the position of Professor and Head of the Division of Radiation Oncology at the Stellenbosch University. He is married to Aleksandra, an electronic engineer, with whom he has one daughter, Marta, herself a freshman student of medicine. His extra-curricular activities include dedication to travel, wine, art and jazz, with emphasis on John Coltrane and late harvest sweet wine

    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
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