1,720,960 research outputs found
STEM CELLS AND THEIR POTENTIALITY FOR THE REGENERATIVE MEDICINE: PRELIMINARY IN VITRO OSTEOGENIC DIFFERENTIATION FOR PERIODONTAL REGENERATION
No full textEvidencia del síndrome neuropático en un estudio neurofisiológico e inmunohistoquímico de las fibras nerviosas en pacientes con síndrome de boca ardiente [Neuropathic syndrome in a neurophysiological and immunohistochemical study of nerve fibers in patients with burning mouth syndrome]
No full textAims. Burning pain is considered characteristic of chronic neuropathic pain condition in general, and so me recent
data seem to suggest peripheral or central nervous system involvement as possible underlying factor in BM3. This
AVANCES EN ODONTOESTOMATOLOGÍN81
AVANCES EN ODONTOESTOMATOLOGÍA Vol. 19 - Núm. 2 - 2003
study was designed to determinate if burning mouth symptoms could be originated from a peripheal neuropathy of small diameter nerve fibres.
Material and methods. The material of the study consisted of 25 patients (18 female, 7 male, 30-75 years; means 54 years). In all patients there were not: oral muco membranes lesions, oral muco membranes diseases, oral correlated diseases, oral dysfunctions, dental and periodontal diseases. Besides there were: no evidence of cen- tral nervous system pathology, no evidence of peripheral nervous system pathology, no presence of organic body disfunctions. AIIpatients didn't show significant alterations of blood investigations. AIIpatients were undermitted to our protocol including: oral and facial c1inicalexaminations, neurological exam, blood investigations, Mc Gill Pain Questionnaire, VAS(visual analogical scale), biopsy of tongue mucosa with hystological and immunofluo- rescence exams, quantitative somatosensory thermotest and teletermography examination of tongue mucosa. ResuIts. These examinations have showed subclinical polineurophaty in 50% of patients. In particular were obser- ved a loss of function in small diameter nervous fibres in about 50% of patients. Hystological exam of mucosal tongue revealed a moderate atrophy and alterations of structures.
Conclusion. Etiology,pathogenetic processes, c1inicaland diagnostic approaches, therapeutical resolutions and researches of burning mouth syndrome are not c1ear yet. The local alterations of small diameter sensitive nerve fibres could cause an increase of oral burning, without muco membranes pathologies. These locallesions could justify the bms c1inicalsymptomatology. The hystological alteration of small diameter sensitive nerve fibres could involve meaningful alterations of thermal reactivity of oral and body surfaces. These c1inicalreactivities are evident in chronic peripheal neuropathy (diabetes). These conclusions and our study results are still provisory. It will be necessary to estend and to increase our results, comparing our research with other bms etio-pathogenetic hypo- tesis
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
APPROCCIO ODONTOSTOMATOLOGICO AL PAZIENTE DISABILE ASPETTI DIAGNOSTICI E TERAPEUTICI.CONSIDERAZIONE SU SOGGETTI AFFETTI DA SINDROME DI DOWN
No full textVariations 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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