825 resultados para Igualização no domínio da frequência


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Pós-graduação em Ciências Biológicas (Botânica) - IBB

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Pós-graduação em Fonoaudiologia - FFC

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Pós-graduação em Medicina Veterinária - FCAV

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We surveyed subjective symptoms of 600 patients referred to the Occlusion and Craniomandibular Dysfunction Center of the School of Dentistry, Campus of São José dos Campos São Paulo, Brazil. We have only considered those symptoms reported by the patients as major complaints. Our purpose on this project was to draw a profile of the disease considering sex, age and incidence of the symptoms that presented themselves or associated with others. Findings were that we found a significant larger number of women, 82.83%, comparing with 17.17% of men. Most of the patients belonged to the third decade, followed by the fourth and second. The most frequent symptom was pain on TMJ region, 42%, followed by TMJ noises, 26.6%, facial pain, 15.5%, earache, 14.5% and headache, 12.1%. The symptom TMJ noises showed to be statistically more significant in men, while headaches, pain in the neck region and temporary locking were more frequent in women. The most frequent association between two symptoms was: TMJ noises with TMJ pain, earache with headache and TMJ pain with earache. There was no statistical difference between sexes. The most frequent association of three symptoms was: TMJ noises together with TMJ pain and pain or difficulty in chewing

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This piece of research aims at analyzing the absolute and relative co-citation indicators, especially Salton’s Cosine and comparing the contribution of these indicators to the understanding of a domain, applying them to the universe of "Metric Studies" at the BRAPCI base. It also aims at presenting the co-citation network generated from the absolute frequencies and highlighting the groupings of co-cited authors, depending on the relative values, integrating and explaining the information from the two indexes. The domain analysis, by means of its 11 approaches, including “Bibliometric Studies”, focuses on the science characterization and evaluation, in that it allows us to identify and to analyze the conditions under which the scientific knowledge is constructed and socialized. In these studies, the contribution of citation and co-citation analysis is highlighted. Of the total of 147 articles retrieved at BRAPCI base, the authors cited in at least 11 articles, in a total of 38 researchers, were selected. The 38 x 38 symmetric matrix with the absolute frequencies of co-citation and the matrix with the relative values of Salton’s Cosine were generated. The co-citation network with absolute frequency values were constructed, through Ucinet software. Cluster analysis of data with relative values wer performed, using the SPSS software. Significant differences between the absolute and relative indexes, with some high absolute values of co-citation were observed; when considered in relation to the presence of each author, their significance is decreased. As to the generated network, seven groups were determined, in which only one is established for close themes and comes from co-citations in the original sense of the term. Five groups present closeness in absolute and relative indicators. It can be concluded about the importance of the studies of authors' co-citation analysis, which associate the two indexes, absolute and relative, in order to visualize and understand the underlying structures of a scientific domain.

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Subject Cataloging is one of the processes of subject approach to information, beside indexing and subject analysis. In this sense, this research is a part of a broader project which analyses ISKO as an academic space that promotes a dialogical dimension among those theoretical questions. In this sense, it aims to analyze the presence of subject cataloguing in the discussions of knowledge organization as well as how the authors of such subject dialogue each other. Considering the questions, the full collection of ISKO and ISKO-Spain conference proceedings were analyzed in order to verify how present were subject cataloguing matters in those collections. It was possible to identify a group of 36 articles (27 from International ISKO and 9 from ISKO – Spain) whose references were bibliometrically analyzed in terms of documentary forms, average life, language and citation analysis. The results showed that the major ISKO and ISKO-Spain literature on subject cataloguing is based on journal articles, mostly published in English, presenting a relatively young average life (14 years for ISKO and 10 for ISKO-Spain).

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INTRODUCTION: We aimed to evaluate the effects of musical auditory stimulation on cardiac autonomic regulation in subjects who enjoy and who do not enjoy the music. METHOD: The study was performed in young women (18-27 years old) divided in two groups (1) volunteers who enjoyed the music and (2) volunteers who did not enjoy the music. Linear indices of heart rate variability were analyzed in the time domain. The subjects were exposed to a musical piece (Pachelbel: Canon in D Major) during 10 minutes. Heart rate variability was analyzed at rest with no music and during musical auditory stimulation. RESULTS: In the group that enjoyed the music the standard deviation of normal-to-normal R-R intervals (SDNN) was significantly reduced during exposure to musical auditory stimulation. We found no significant changes for the other linear indices. The group composed of women who did not enjoy the music did not present significant cardiac autonomic responses during exposure to musical auditory stimulation. CONCLUSION: Women who enjoyed the music presented a significant cardiac autonomic response consisting of a reduction in heart rate variability induced by the musical auditory stimulation. Those who did not enjoy the musical piece presented no such response.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Engenharia Elétrica - FEB

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INTRODUCTION: The autonomic nervous system (ANS) could be investigated in a noninvasive way by the heart rate variability analysis (HRV) which has contributed to several health areas such as physiotherapy. OBJECTIVE: To gather information regarding the use of HRV on physiotherapy aims at providing an update of the findings for the area on journals of national circulation. MATERIALS AND METHODS: The journals of national circulation classified as greater than B2 or B2 and with free access and complete texts in some internet sites were searched on 21 area WebQualis resulting on selection of Revista Brasileira de Fisioterapia, Fisioterapia e Pesquisa and Fisioterapia em Movimento using the keywords: autonomic nervous system, sympathetic nervous system, physiotherapy and heart rate variability. RESULTS: The search resulted in 19 articles being 17 clinical trials and two case reports. CONCLUSION: The HRV has been used as a resource of interventions evaluation, as pathological conditions common to clinical practice investigation and to physiological conditions interpretation in physiotherapy. The HRV is principally used to the cardiorespiratory specialty of physiotherapy.

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The main objective of this study was to analyze the behavior of variables related to swim ability at and above maximal lactate steady state (MLSS), performed at continuous and intermittent conditions in individuals with different aerobic performance levels. Participated of this study male swimmers with ages between 20 to 25 years, specialists in events of 400 m, 800 m and 1500 m and open water swims, with at least 3 years of experience in the modality. The individuals performed a maximal 400-m swim test. After this test, they were divided into two groups, in accordance with the speed attained during 400-m swim test: G1 (higher performance) and G2 (lower performance). For the determination of continuous MLSS (MLSSc), 2 to 4 trials of 30-min were performed. For the determination of the intermittent MLSS (MLSSi) 2 to 4 trials of 30-min (12 repetitions of 2 min 30 s, with 30 s of rest) were performed, in constant speed, with the first trial performed at 102.5% MLSSc. Th technical indexes, stroke rate (FB) and stroke length (CB) were determined in all tests. The SR was calculated trough recordings using the time needed to perform five stroke cycles. The SL was calculated dividing the speed by the SR. There was no significant difference on the antropometric characteristics between groups. The speed at and above MLSSc were significantly higher at G1 (1,23±0,05 e 1,27±0,06, respectively) than G2 (1,10±0,06 e 1,13±0,06, respectively). There was significant change in SL and SR in G2. In the same way, there was significant change in SL and SR only in G2, above MLSSc. Similar to continuous condition, the speeds at and above MLSSi were significantly higher in G1 (1,27±0,05 e 1,30±0,05, respectively) do que no G2 (1,14±0,07 e 1,16±0,07, respectively). There was significant change in SL and SR only in G2. There was significant change in SR and SL in both groups above MLSSi. Thus,...(Complete abstract click electronic access below)

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O estudo do conteúdo de foraminíferos de 8 amostras de sedimentos superficiais coletados em manguezal do norte da Ilha do Cardoso, sul do Estado de São Paulo, no verão (período chuvoso) de 2001, ao longo de um transecto no sentido da Baía de Trapandé para o interior, revelou dois segmentos distintos: a) uma planície inferior lamosa, com menor tempo de exposição sub-aérea e maior diversidade específica, dominada por Ammotiumcassis, A.salsum, Arenoparrella mexicana e Trochamminainflata, com abundância expressiva de Caroniaexilis na parte mais baixa e de Miliammina fusca na parte mais alta; b) uma planície superior arenosa, com maior tempo de exposição sub-aérea e menor diversidade, dominada por M. fusca e com abundância expressiva de T. inflatana parte mais baixa. Os sedimentos investigados são colonizados por foraminíferos exclusivamente aglutinantes, representados por 21 espécies de 16 gêneros. Dados de abundância relativa, riqueza, diversidade e equitatividade das espécies ao longo do transecto são apresentados, bem como os valores de salinidade, pH, oxigênio dissolvido e temperatura, medidos a partir da água intersticial dos sedimentos no momento da coleta das amostras. São feitas comparações com um estudo anterior, similar, que focalizou amostras coletadas, nos mesmos pontos, no inverno (período seco) de 2002. Os resultados obtidos interessam às análises de sistemas estuarinos modernos e antigos, bem como a projetos envolvidos com o diagnóstico do estado de conservação de áreas litorâneas, sendo úteis ao Setor de Petróleo e Gás