1,720,957 research outputs found
Le anomalie vascolari dei tessuti molli del cavo orale
No full textObjectives To examine the vascular anomalies most frequently found in dental practice. Vascular anomalies are diseases characterized by functional and/or morpho-structural alterations of various nature, severity and extension which can affect every type of vessel (arterial, venous or lymphatic) of any caliber or anatomical region. Generally they are congenital and benign though they may cause complications such as ulceration, bleeding, superinfection, functional, and/or aesthetic deficit. Materials and methods Currently, the reference classification is the one adopted by the International Society for the Study of Vascular Anomalies (ISSVA), which distinguishes vascular or vasoproliferative neoplasms, including hemangiomas, from vascular malformations, these latter being further subdivided into low-flow and high bloodstream malformations. The diagnosis of vascular anomalies can not be separated by pathological history and clinical examination of the patient, even if for a certain diagnosis it is necessary to perform instrumental examinations including the echo color doppler ultrasound, a rapid examination, which is repeatable and devoid of ionizing radiation. The treatment involves different techniques, depending on the type of vascular lesion diagnosed; in particular, laser therapy is the most suitable for low-flow anomalies. This technique presents three different approaches: the excisional biopsy being indicated for suspicious lesions which need a histological examination; the transmucousal thermophotocoagulation (TMT) which involves the use of laser in “no contact” mode; and the intralesional photocoagulation (ILP) which uses the laser fiber inside the lesion and is suitable for deepest vascular anomalies. Results and conclusions . According to recent literature and clinical experience, we can say that vascular anomalies are a heterogeneous group of diseases for which treatment is necessary to perform a correct diagnostic clinical-instrumental approach; laser devices, with a wavelength similar to the oxidized hemoglobin, are the gold standard for the treatment of low flow blood abnormalities, both for ease of use and the excellent haemostatic effects
Evaluation of the efficacy of a new low-level laser therapy home protocol in the treatment of temporomandibular joint disorder-related pain: a randomized, double-blind, placebo-controlled clinical trial
No full textObjective: This study analyzed a home, low-level laser therapy (LLLT) protocol to manage temporomandibular joint disorders (TMJDs)-related pain. Methods: Ninety TMJD patients (12M, 78F) between 18 and 73 years were randomly subdivided into three groups. Study group (SG) received 1-week home protocol LLLT by B-cure Dental Pro: 808 nm, 5 J/min, 250 mW, 15 KHz for 8‘, 40 J each, over pain area, twice daily. Placebo group (PG) followed the same protocol using sham devices. Drugs group (DG) received conventional drugs. Pain was evaluated by visual analog scale (VAS) before and after therapy. Results: Statistical analysis showed that treatment was effective (F(2,83) = 4.882; p =.010). Bonferroni post-hoc analysis indicated a lower pain decrease in PG. SG registered a 34-point decrease per patient, while in PG and DG, the reduction was 25.6 and 35.3, respectively. Conclusion: The study supports the efficacy of home LLLT management of TMJD related pain
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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