1,720,975 research outputs found
The therapy of cervical adenopathies in tumors of the lip and oropharynx
No full textThe authors, after some notes of topographic anatomy about the lymph nodes of the cervical area, examine the different therapeutic managements of lymph node metastasis of lip and oropharynx carcinoma. From these data, the authors put in evidence that almost all the surgeons and the radiotherapists do agree about the inclusion of radiotherapy, polychemotherapy and, more often, surgery in the treatment of cervical lymph node metastasis. The authors experience suggests no treatment of the cervical region in case of N0 lower lip cancer, especially if the neck is thin, and easy to examine, but it is necessary a careful follow-up in order to discover as soon as possible a clinic metastasis. They do not exclude that this behaviour could be suggested also in other neoplastic disorders, but the decision should be based on the histologic kind and grading, on the extension and on the possibility to exclude any cervical involvement. Beside this, the authors come to the conclusion that, in case of N1, N2, N3, the treatment of the cervical regions can not be avoided. The surgical treatment is the neck dissection, functional or radical, alone or together with radiotherapy and polychemotherapy. They finally report that the postoperative radiotherapy for cervical metastasis must be properly used when the capsular rupture is histologically proved
The need of qualifying a best-estimate code against a complex transient: methodology and results
No full textApplication of the Fast Fourier Transform Method to evaluate the accuracy of SBLOCA Data Base
No full textA proposal for performing the Atucha-II accident analysis for licensing purposes [the BEPU-report]
No full textAmong the general attributes of a methodology to perform accident analysis of a nuclear power plant for licensing purposes, the very first one should be the compliance with the established regulatory requirements. For the case of Atucha II nuclear power plant, this means the requirements issued or adopted by the Autoridad Regulatoria Nuclear (ARN) of Argentina. A second attribute deals with the adequacy and the completeness of the selected spectrum of events which, according to international recognized safety practices, should consider the combined contributions of deterministic and probabilistic methods. For consistency with the original plant design, the starting point for the developments was the methodology described in the SIEMENS Work Report KWU NA-T/1995/011, which has been referenced as “the Bordihn’s Report”. Based on qualified tools and analytical procedures developed or available at the Dipartimento di Ingegneria Meccanica, Nucleare e della Produzione of the University of Pisa (DIMNP/UniPisa), a modern and technically consistent approach has been built upon best estimate methods including an evaluation of the uncertainty in the calculated results (Best Estimate Plus Uncertainties or BEPU approach). To achieve the required level of quality for supporting licensing-related decisions, technically qualified and experienced staffs are engaged in the activities of development of such approach and its application for the safety analysis of Atucha II. The present report has been prepared within the framework of an agreement between NA-SA and UniPi. The report contents should support a formal submittal of NA-SA to ARN in the licensing process of Atucha II. Upon a revised version, which would incorporate eventual comments or requests from the regulatory authority, the forthcoming activities and evaluations will strictly adhere to the established approach to perform the accident analyses to be included in the Final Safety Analysis Report. A comprehensive and accurate documentation is available to support the present report and will be extended according to future licensing demands. Based on the above considerations, for the development of the proposed approach and to apply it for the licensing of Atucha II plant, the work followed the top-down strategy
A comparative study of a surgical method and scaling and root planing using the Odontoson(R)
No full textThis investigation compared a traditional periodontal surgical method with a non-surgical treatment of scaling and root planing by an ultrasonic device (Odontoson M(R)) using irrigation with an iodised solution. 8 adult patients with periodontal disease were each treated at 2 randomly chosen quadrants by a Widman flap type surgical technique, and the remaining non-surgically. The patients then attended bi-monthly oral hygiene sessions over a period of 1 year. At that stage, clinical evaluation revealed that the Odontoson M(R) plus an ionized irrigant solution achieved a statistically comparable outcome to that of surgical treatment, even in the pockets initially up to 7 mm in depth
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
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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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