13,449 research outputs found

    Asteroseismic Theory of Rapidly Oscillating Ap Stars

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    This paper reviews some of the important advances made over the last decade concerning theory of roAp stars.Comment: 9 pages, 5 figure

    Accessing the Acceleration of the Universe with Sunyaev-Zel'dovich and X-ray Data from Galaxy Clusters

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    By using exclusively the Sunyaev-Zel'dovich effect and X-ray surface brightness data from 25 galaxy clusters in the redshift range 0.023< z < 0.784 we access cosmic acceleration employing a kinematic description. Such result is fully independent on the validity of any metric gravity theory, the possible matter-energy contents filling the Universe, as well as on the SNe Ia Hubble diagram.Comment: 3 pages, 4 figures, To appear in the Proceedings of the Twelfth Marcel Grossmann Meeting on General Relativit

    Are Galaxy Clusters Suggesting an Accelerating Universe?

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    The present cosmic accelerating stage is discussed through a new kinematic method based on the Sunyaev- Zel'dovich effect (SZE) and X-ray surface brightness data from galaxy clusters. By using the SZE/X-ray data from 38 galaxy clusters in the redshift range 0.14≤z≤0.890.14 \leq z \leq 0.89 [Bonamente et al., Astrop. J. {\bf 647}, 25 (2006)] it is found that the present Universe is accelerating and that the transition from an earlier decelerating to a late time accelerating regime is relatively recent. The ability of the ongoing Planck satellite mission to obtain tighter constraints on the expansion history through SZE/X-ray angular diameters is also discussed. Our results are fully independent on the validity of any metric gravity theory, the possible matter- energy contents filling the Universe, as well as on the SNe Ia Hubble diagram from which the presenting accelerating stage was inferred.Comment: 6 pages, 6 figures, AIP Conf. Proc. Invisible Universe: Proceedings of the Conferenc

    Effectiveness of passive mobilization in the treatment of shoulder pathologies

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    Introdução: A dor no ombro é muito comum e o tratamento preferencial é a fisioterapia. Objectivo: Avaliar a efectividade da mobilização passiva na dor, força,amplitude de movimento e/ou função no tratamento de indivíduos com tendinopatias da coifa ou síndrome de colisão do ombro por meio de revisão sistemática de literatura. Métodos: Os estudos foram pesquisados na PubMed, Cochrane Library, Scielo, PEDro e Web of Science. Dois investigadores analisaram os artigos para determinar os trabalhos a incluir. A qualidade metodológica desses foi avaliada por meio da escala de PEDro e feita a sua caracterização detalhada. Resultados: Os resultados sugerem que a mobilização passiva quando aplicada em conjunto com outros tratamentos leva a significativa diminuição da dor e a melhoria da força e função. Conclusão: A mobilização passiva aplicada em conjunto com outros tratamentos parece ser uma mais valia no tratamento de tendinopatias da bainha rotadora e síndrome de colisão do ombro. São necessários mais estudos que confirmem esses resultados.Introduction: Pain in the shoulder is very common and the preferential treatment is physiotherapy. Objective: To assess the effectiveness of passive mobilization on pain, strength, range of motion and/or function for patients with rotator cuff tendinopathies or impingement syndrome. Methods: Studies were sought from PubMed, Cochrane Library, Scielo, PEDro and Web of Science. Two investigators screened all studies for inclusion. Methods: Quality was assessed using PEDro scale and a detailed characterization of each study was made. Results: All studies show that the group that received the treatment package including passive mobilization showed statistically significant decrease of pain and improvements for function and strength when compared to the control group. Conclusion: A trend was found favoring the addition of passive mobilization to a treatment package of physiotherapy for decreasing pain and increasing strength and function, but a firm conclusion cannot be made
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