1,721,022 research outputs found
Aule nel deserto e nella steppa. Lo scavo archeologico nel Vicino Oriente come laboratorio didattico.
No full textCLINICAL APPLICATION OF AUTOLOGOUSPLATELET RICH PLASMA (P.R.P.) IN THEEXTRACTION OF THIRD IMPACTEDMANDIBULAR MOLAR
Full text linkThe impacted third molar surgery has various limits; one of these limit is the type of surgery applied, often demolitive for the patientswith long term consequeses in the post-op period. Aim of our study is to get a better healing of soft and hard tissues with theapplications of PRP in this type of surgery. 5 patients were included in the study with these requests: the impacted or semiimpacted third molar were on both side; the acceptance of PRP tecnique on one side (considered as the case) the extraction ofthe other impacted molar as the controll side to our case; both teeth were extracted on the same day, both sockets were closedby hermetically suturing the flap; on one socket it has been inserted the platelet gel on the other side nothing. Pre operativemesurements were: 1. probing depth of both the seventh (3.7-4.7); 2. ortopantomography (OPT). Post operative measurementsincluded: 1. probing depth two months after surgery; 2. OPT at one weeek, one month, two month.One week after surgery patiens were aked about the post-op through a questionary on the course of the week, in specific theywere asked to assess a score from one to three on swelling and pain of the two side. One week after a clinician who was out of thestudy (not the surgeon) evaluated the eventual bacterial sovrainfections, the dehicence of the flaps, the eventual collateral effectsgiven by the application of PRP giving a score from one to three to the type of healing. Periodontal healing was evaluated on bothside after 2 months after surgery in all the cases treated the initial P.D. was 2-3mms on both sides. It showed an improvement inthe sites treated with P.R.P. Swelling (perceived by the patients during the course of the fist week) was not reduced by theapplication of PRP gel, while there has been a reduction in the pain in comparison with the control side reffered by the patients.Clinical evaluation realized a week after the extractions showed a better healing on the PRP side vs the controll side (total score12 vs 8) where three patients from five realized a primary closure with no bacterial sovrainfection or dehiscence of the flap vs oneprimary closure on the controll side. Bone healing measured by digital OPT did not show a real improvement on PRP side after twomonths in the cases analyze
Sinus floor augmentation with autogenous iliac bone block grafts: A histological and histomorphometrical report on the two-step surgical technique
No full textBone augmentation of the inferior floor of the maxillary sinus with autogenous bone or composite bone grafts: A histologic-histomorphometric preliminary report
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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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