1,720,967 research outputs found
Trattamento endovascolare delle steno/occlusioni delle vene sovraepatiche con doppio approccio percutaneo
No full textnon disponibile; poster scientific
Krystaliczne obrazy Leosa Caraxa. Uwagi o Chłopak spotyka dziewczynę i Złej krwi w optyce koncepcji obrazu-czasu Gilles’a Deleuze’a
Full text linkThe author of the article analyses the first two feature films of Leos Carax – Boy Meets Girl (1984) and The Night Is Young (Mauvais Sang, 1986) – in the perspective of Gilles Deleuze’s reflection on cinema. Undoubtedly, the works of both filmmaker and philosopher are linked to broadly-understood postmodern paradigm – the former’s to postmodern cinema, the latter’s to postmodern theory of cinema. Nevertheless, it is modernism (…) that formed both Carax’s style and Deleuze’s concept. The author explores the French director’s films through the most sophisticated form of time-image cinema – crystalline regime, which includes three instances of film: description, narration and story.The author of the article analyses the first two feature films of Leos Carax – Boy Meets Girl (1984) and The Night Is Young (Mauvais Sang, 1986) – in the perspective of Gilles Deleuze’s reflection on cinema. Undoubtedly, the works of both filmmaker and philosopher are linked to broadly-understood postmodern paradigm – the former’s to postmodern cinema, the latter’s to postmodern theory of cinema. Nevertheless, it is modernism (…) that formed both Carax’s style and Deleuze’s concept. The author explores the French director’s films through the most sophisticated form of time-image cinema – crystalline regime, which includes three instances of film: description, narration and story
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
Visualization of peri-prostatic neurovascular fibers before and after radical prostatectomy by means of diffusion tensor imaging (DTI) with clinical correlations: preliminary report
No full textTo evaluate if diffusion tensor imaging (DTI) is able to detect morphological changes of peri-prostatic neurovascular fibers (PNF) before and after robot-assisted radical prostatectomy (RARP) and if these changes are related to urinary incontinence (UI) and erectile dysfunction (ED). From October 2014 and August 2017, 26 patients with biopsy-proven prostate cancer underwent prostatic multiparametric magnetic resonance imaging (mp-MRI) including DTI sequencing before, and 6 months after, RARP. Images were analyzed by placing six regions of interest (ROI), respectively, at base, mid gland, and apex, one for each side, to obtain tractographic reconstruction of the PNF. Patients were asked to complete International Consultation Incontinence Questionnaire-Short Form (ICIQ-SF) and International Index of Erectile Function (IIEF-5) questionnaires before RARP and 6 months post-operatively. Fractional anisotropy (FA), number (N), and length (L) of PNF before and after RARP were compared by means of Student's t test; Spearman's test was used to evaluate correlation between DTI parameters and questionnaires' scores. We observed a significant difference in N values before and after RARP (p < 0.001) and a negative correlation between IIEF-5 score and post-operative FA values at both the right (rho = - 0.42; p = 0.0456) and left (rho = - 0.66; p = 0.0006) base of the prostate. DTI with tractography of PNF is able to detect quantitative changes in N, L, and FA values in PNF after RARP. In particular, we observed an inverse correlation between FA of PNF and ED at 6 months after RARP. Further investigations are needed to confirm this trend
Added value of MRI tractography of peri-prostatic nerve plexus to conventional T2-WI in detection of extra-capsular extension of prostatic cancer
No full textTo evaluate the role of DTI (with fibretracking) and T2-weighted imaging (T2-WI) used together for predicting extra-capsular extension in patients with localized prostate cancer
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
The Accuracy of Computer-Assisted Implant Surgery Performed Using Fully Guided Templates versus Pilot-Drill Guided Templates
Full text linkPurpose. Computer-assisted stereolithographically guided surgery allows an ideal implant placement for prosthetic restoration. Two types of stereolithographic templates are currently available: a fully guided template and a pilot-drill guided template. The purpose of this study was (i) to evaluate the accuracy of implant insertion using these types of surgical templates and (ii) to define parameters influencing accuracy. Materials and Methods. 20 patients were enrolled and divided into 2 study groups: in group A, implants were placed using CAD-CAM templates with fully guided sleeves; in group B, implants were placed with a template with only pilot-drill guided sleeves. Pre- and postoperative computed tomographies were used to measure differences between final positions of implants and virtually planned positions. Three linear discrepancies (coronal, apical, and depth) and two angular ones (buccolingual and mesiodistal) were measured. Correlations between accuracy and jaws of interest, implant length and diameters, and type of edentulism were also analysed. Results. A total of 50 implants were inserted in 15 patients using CAD-CAM templates: 23 implants in group A and 27 in group B. The mean coronal deviations were 1.16 and 1.11 mm (P = 0.35), respectively; the mean apical deviations were 1.65 and 1.71 mm (P = 0.22); the mean depth deviations were 0.95 and −0.68 mm (P = 0.032); the mean buccolingual angular deviations were 4.16° and 6.72° (P = 0.042); and the mean mesiodistal ones were 2.81° and 5.61° (P = 0.029). In addition, the accuracy was statistically influenced only by implant diameter for coronal discrepancy (P = 0.035) and by jaw of interest for mesiodistal angulation (P = 0.045). Conclusion. Fully guided implant surgery was more accurate than pilot-drill guided surgery for different parameters. For both types of surgery, a safety margin of at least 2mm should be preserved during implant planning to prevent damage to nearby anatomical structures
Evaluation of periprostatic neurovascular fibers before and after radical prostatectomy by means of 1.5 t mri diffusion tensor imaging
No full textTo evaluate if diffusion tensor Imaging (DTI) is able to detect changes of periprostatic neurovascular fibers (PNFs) before and after radical prostatectomy (RP), and if these changes are related to post-surgical urinary incontinence and erectile dysfunction
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