1,721,032 research outputs found
Color atlas of brainstem surgery, 1st edition. Editors: Spetzler, Kalani, Nakaji, Yagmurlu (2017)
No full textChordomas: Technologies, Techniques, and Treatment. (2017) Edited by Pamir et al., 235 pp., Hardback, 400 illustartions, €179.99/USD$199.99 ISBN: 9781626231597 eISBN: 9781626231603 Thieme Medical Publishers, Inc. New York/Stuttgart
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The effect of short-term temperature changes on superelastic nickel-titanium archwires activated in orthodontic bending
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What are the treatment options for blister-like aneurysms?
No full textTreatment of blood blister-like aneurysms (BBAs) of the supraclinoidal internal carotid artery (ICA) is challenging and the optimal treatment is yet to be defined. The treatment options for ICA BBAS are microsurgery, endovascular therapy, or a combination of the two. The microsurgical armamentarium consists mainly of direct aneurysm clipping with or without protective EC-IC bypass, clip-wrapping, or trap ligation with ICA sacrifice with or without EC-IC bypass. The endovascular treatment options are mainly endovascular ICA ligation, multiple overlapping stents (≥ 3) with or without coiling, covered stents, or flow diverters. In four recent meta-analyses of BBAs, neither microsurgical nor endovascular therapy had an impact on clinical outcome in multivariate analysis. Microsurgery offered aneurysm obliteration rates superior to endovascular techniques, but came at a higher risk of intraoperative bleeding. Endovascular therapy increased the likelihood of a second treatment, conversion to another treatment modality, and incomplete aneurysm obliteration. In this review, we discuss pros and cons of the above approaches while adding our own viewpoints to the discussion
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
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