1,720,995 research outputs found
Anatomic relationship between trigeminal nerve and temporomandibular joint
No full textTemporomandibular joint disorders (TMD) is a collective term used to describe pathologic conditions involving temporomandibular joint (TMJ), masticatory muscles and associated structures. Common related complaints include local pain, limited mouth opening and TMJ noises whereas symptoms often associated to TMD with debated pathogenesis enclose earache, headaches, tinnitus and trigeminal-like symptoms such as atypical orofacial pain. In particular, TMD trigeminal associated symptoms are intricate, difficult to treat and exert a great impact on everyday life of the patients thus invoking a complex multidisciplinary treatment. In this paper, the authors analyze the anatomic and topographic relationships between the mandibular branch of the trigeminal nerve and the medial aspect of the TMJ capsule in 8 fresh adult cadavers thus resuming a pathologic relationship between atypical trigeminal symptoms and TMD
Pigmented villonodular synovitis of the temporomandibular joint
No full textPigmented villonodular synovitis (PVNS) is a relatively rare disease affecting synovium-lined joints. PVNS was first fully described in 1941 by Jaffe et al, who considered it a benign inflammatory state of the synovium of uncertain etiology. Reports of this disease in the temporomandibular joint (TMJ) are extremely rare. This report describes a case of a 78-year-old man affected by PVNS of the right TMJ. Clinical examination revealed the presence of a right-sided preauricular mass; a magnetic resonance imaging scan showed a mass located lateral to the right mandibular condyle, close to the TMJ capsule. The clinical and pathologic features of the case are described
Parotid glands tumours: overview of a 10-years experience with 282 patients, focusing on 231 benign epithelial neoplasms
No full textSalivary gland tumours are uncommon, representing less than 6% of head and neck neoplasm. Pleomorphic adenoma is the most common benign epithelial salivary gland neoplasm, comprising 50%-74% of all parotid tumours. It is followed by Warthin's tumour (4-14%). The authors retrospectively reviewed 282 eligible patients surgically treated for parotid gland tumours in the last 10 years, focusing on 231 benign epithelial neoplasms. Clinical and diagnostic findings, surgical treatment and surgical outcome were discussed. The diagnosis of a parotid gland neoplasm must be considered in any patient presenting with a lump near the mandible. Smoking habit is important in Warthin's tumour pathogenesis. Fine needle aspiration citology (FNAC) can't lead alone to histological diagnosis. Only surgery can give histological certainty of benignity, thus preventing malignant degeneration, lump infection or risk of size-dependent surgical complications. Conservative formal parotidectomy appears to be the treatment of choice. Tumour pseudopodia and capsule ruptures are recognised factors involved in pleomorphic adenoma recurrences but also tumour multicentricity might play an important role
Transglutaminase 1 Gene Mutations in Italian Patients with Autosomal Recessive Lamellar Ichthyosis
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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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