1,720,957 research outputs found
Análise da função dos músculos do quadril em portadores de síndrome da dor patelofemural
Get PDFThe Patellofemoral pain syndrome is defined as a fore or retro patellar pain and it has multifactorial etiology, where the bad patellar alignment is the most acceptable hypothesis. However proximal factors to the knee, as the debility of the muscles of the hip, have been demonstrated as a contributing factor to the appearing of that syndrome. Purpose: To evaluate if exists a relation between the hip muscles performance and the development of the SDPF. Methods: Thirty women took part in this study. They were divided in two groups; a control group (fifteen asymptomatic subjects) and an experimental group (fifteen subjects with the diagnosis of SDPF). The muscle performance was evaluated in an isokinetic dynamometer, where it was verified the peak torque (PT), PT to body weight, PT time and the agonist/antagonist relation. It was also analyzed the electromyographic activity of the middle gluteus. The data was analyzed by the not paired t test at a significance level of 5%. Results:. Didn t have significant difference to the PT of the abductor muscles (p = 0,46) and lateral rotators of the hip (p = 0,17) between groups. Also didn t have significant difference to the PT values by the body weight, to these muscle groups either (p = 0,10 e p = 0,11, respectively). Didn t have significant difference between the amplitude of the signal (p = 0,05) and the onset of medium gluteus (p = 0,25) between the groups. Conclusion: In the experimental conditions realized, the study didn t demonstrate a relation between performance the hip muscles behavior and the development of the SDPFA Síndrome da Dor Patelofemural (SDPF) é definida como uma dor anterior ou retropatelar e possui etiologia multifatorial, onde o mau-alinhamento patelar é a hipótese mais comumente aceita. Entretanto fatores proximais ao joelho, como a debilidade dos músculos do quadril, têm sido sugerido como um fator contribuinte ao surgimento desta síndrome. Objetivo: Avaliar se existe relação entre a performance dos músculos do quadril e o desenvolvimento da SDPF. Métodos: Participaram do estudo 30 mulheres alocadas em um grupo controle (15 sujeitos assintomáticos) e um grupo experimental (15 sujeitos com diagnóstico de SDPF). A performance muscular foi avaliada em um dinamômetro isocinético, onde verificou-se o Pico de Torque (PT), PT pelo peso corporal, tempo do PT e a relação agonista/antagonista. Também foi analisada a atividade eletromiográfica do glúteo médio. Os dados foram analisados através do teste t não pareado com um nível de significância de 5%. Resultados: Não houve diferença significativa entre o PT dos músculos abdutores (p = 0,46) e rotadores laterais do quadril (p = 0,17) entre os grupos. Também não foi encontrada diferença significativa no PT pelo peso corporal, para esses grupos musculares (p = 0,10 e p = 0,11, respectivamente). Não houve diferença entre a amplitude do sinal eletromiográfico (p = 0,05) e o onset do glúteo médio (p = 0,25) entre os grupos. Conclusão: Nas condições experimentais realizadas, o estudo não demonstrou relação entre a performance dos músculos do quadril e o desenvolvimento da SDP
Acordos de Compensação (Offsets) na Força Aérea: uma análise do Projeto H-X BR
Get PDFA presente pesquisa teve como meta avaliar criticamente em que medida os Acordos de Offset contribuem para o desenvolvimento da indústria de defesa, na perspectiva do setor aeronáutico brasileiro. Buscou-se analisar o processo de transferência de tecnologia, a partir dos acordos de compensação firmados no Projeto H-X BR, cujo objeto é a aquisição de 50 helicópteros franceses e suporte logístico inicial, destinados à satisfação de demandas operacionais das três Forças Armadas. A presente pesquisa analisou também as contribuições teóricas das principais linhas de pensamento em relação ao papel da inovação para o segmento de defesa, levando-se em conta os múltiplos participantes da estrutura estatal, a análise do arranjo normativo brasileiro e a natureza jurídica das práticas compensatórias, bem como o papel dos atores envolvidos no processo de aprovação dos Acordos de Offset
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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