1,720,995 research outputs found
Efficacy of Hilotherapy face mask in improving the trend of edema after orthognathic surgery: a 3D analysis of the face using a facial scan app for iPhone
Full text linkCryotherapy after orthognathic surgery is essential for the control of facial edema. The aim of our study is to evaluate the efficacy of Hilotherapy face mask in reducing facial edema after orthognathic surgery, studying facial surfaces with an innovative, fast, economical 3D facial scan system based on an iPhone app
Step-technique genioplasty: A case report
No full textINTRODUCTION: Genioplasty is the gold standard technique to modify natural chin anatomy based on an inferior border osteotomy of the mandible enabling 3D-repositioning of the chin. Our “step-technique genioplasty” is a modified and improved surgical technique for advancement genioplasty in patients with elusive chin and vertical excess of the lower third. CASE PRESENTATION: We performed this technique on a 23-year-old female patient with a history of facial trauma that affected the morphology and aesthetics of the lower third. The surgery consisted of two osteotomy lines. The first osteotomy line was a monocortical osteotomy allowing to preserve the integrity of the lingual cortex. About 3 mm below, the second and complete bicortical osteotomy was performed to mobilize the chin segment. A bone fragment containing the vestibular cortex and medullary portion of the mandible was removed preserving the integrity of the lingual cortex and creating a bony step in mandibular symphysis. The osteotomized chin was advanced in the front of the bony step. DISCUSSION: Compared with known techniques, step-technique genioplasty allowed addressing the vertical chin excess not only at the level of the symphysis but also posteriorly with no over-projection of the chin and no deepening of the labiomental crease, common downsides in other approaches. CONCLUSION: The aesthetic outcome reflected the preoperative planning: we obtained a smoother transition between symphysis and horizontal branch of the mandible, just the right amount of anterior projection of the chin, greater stability, and predictability of the outcome with satisfying aesthetical results and no complications
Quantitative assessment of dimensional evolution of solitary osteoma of the mandible through 14 years of radiographic follow-up analysis: A unique case report
Full text linkHead & Neck Osteomas are extremely rare osteogenic benign tumors, with unclear pathogenesis and heterogeneous clinical behavior. There are no studies in literature showing the characteristics of dimensional growth of such lesions. We report a case of a peripheral solitary osteoma of the sigmoid notch of the mandibular ramus, describing its radiographic growth in fourteen years. Measurements from OPTs (2003–6x7mm, 2008–8x12mm, 2014–17 × 24mm, 2016–19 × 25mm and 2017–21 × 28mm) and 3d cone-beam computed tomography scan (2016–19 × 15 × 21mm, 2017–21,4 × 19,2 × 22,7) were obtained. The growth of the lesion measured on OPTs was in mean 1.1 × 1.5 mm per year. This is the first case report in literature quantitatively assessing the growth of a solitary osteoma of the mandible through radiographic imaging, which seems to be more than 1 mm per dimension per year
Adenoid cystic carcinoma of accessory parotid gland: A case report and review of the literature
Full text linkAccessory parotid gland (APG) is a small salivary gland tissue ranging from 0.5 to 1 cm diameter in size, located almost 7 mm anterior to the main parotid gland. APG is a common anatomical variant, but accessory parotid gland tumors are very rare, accounting for only 1%–7.7% of all parotid gland tumors. We present a case of adenoid cystic carcinoma involving accessory parotid gland, a very rare condition with only, to the best of our knowledge, other 7 cases described in literature. Surgical excision was performed and eventful postoperative recovery, without severe surgical complications and no signs of recurrence at 12 months of follow-up was obtained, with a good cosmetic result. An extensive review of the literature has been performed and the results are presented in order to establish a correct diagnostic-therapeutic protocol for these oncologic patients
A comparison of a SARS-CoV-2 rapid-test and serological-test in a Public Health Hospital
Full text linkNowadays, with the start of the vaccination campaign is very important to assess the extent of exposure of the population and identifying rapid, sensitive and accurate test to quickly identify new cases of SARS-CoV-2. The rapid test, cheap and easy to perform, is therefore very useful in developing countries, where the vaccination campaign has not yet reached adequate coverage
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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