1,720,961 research outputs found
Psychodynamic Features Associated With Orthognathic Surgery: A Comparison Between Conventional Orthognathic Treatment and “Surgery-First” Approach
No full textPurpose
The aims of this study were to assess the personality traits of orthognathic patients and to investigate and compare the changes related to psychosocial well-being, self-esteem, anxiety, and quality of life between presurgical and postsurgical phases in patients undergoing traditional and surgery-first orthognathic treatments.
Patients and Methods
This prospective study recruited patients referred for traditional 3-stage orthognathic treatment and surgery-first orthognathic treatment. Patients were administered psychological and quality-of-life tests 3 times: during the last visit before surgery, about 4 weeks after surgery, and 6 months after surgery.
Results
Of the 33 patients included, 14 presented parameters that were suggestive of personality (borderline, compulsive, antisocial, passive-aggressive) disorders. The results of the 36-item Short Form Health Survey showed significant differences with better scores for the “surgery-first” group for bodily pain, vitality, social functioning, and mental health (P < .05). As for the Beck Depression Inventory second edition results, at final check, surgery-first patients reported fewer depressive symptoms too.
Conclusions
A surgery-first orthognathic approach allows a precocious re-establishment of harmonic esthetics of the face, thus positively influencing the compliance and psychological status of the patients
Oncocytoma of the lacrimal sac
Full text linkAcquired nasolacrimal duct obstruction is often caused by chronic inflammation. Rarely, lacrimal sac tumors are a cause of nasolacrimal duct obstruction. Such tumors include: adenocarcinomas, adenoid cystic carcinomas, squamous cell carcinomas, lymphomas, pleomorphic adenomas and oncocytomas. Oncocytomas of the lacrimal sac are rare with very few cases documented in the recent literature. Oncocytoma is not routinely found in other cutaneous locations, and it may cause diagnostic confusion for those not familiar with it. Therefore, the aim of this article is to report the management of a patient affected by an oncocytoma of the lacrimal sac
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
“Curette technique” and FiSH analysis for the assessment of oral field cancerization
Full text linkBACKGROUND: As tumorigenesis is a multi-step process driven by an accumulation of genetic changes, oral field cancerization still represents a valid theory for the development of recurrences and second primary tumors in oral squamous cell carcinomas (OSCCs). The aim of this preliminary study was to assess and validate the use of Scraping technique in association with FISH analysis as an early detection method for a specific chromosome 3q26.3 amplicon in mucosal sites that were considered clinically normal adjacent to OSCCs, keeping in mind the concept of oral field cancerization.
METHODS: Eleven patients with OSCCs were included in the study. During surgical intervention 4 microbiopsies in clinically normal tissue adjacent to the tumoral lesion were taken by curette technique. The collected samples were sent for FISH analysis with a 3q26.3 region probe.
RESULTS: In three patients genetic abnormalities in 3q26.3 were identified. Two of the three patients that presented positivity to FISH analysis had both risk factors (smoke and alcohol), were male and were the youngest in the study population.
CONCLUSIONS: The use of the curette technique in combination with FISH to detect copy number amplification of 3q26.3 could represent a valuable tool for the assessment of oral field cancerization
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
- …
