989 resultados para Homem - mão erguida
Resumo:
OBJETIVO: Avaliar a confiabilidade intra e interexaminadores e a reprodutibilidade da goniometria em relação à fotogrametria na mão, comparando os ângulos da abdução de polegar, flexão da AIFP do II dedo e flexão da AMCF do V dedo. MÉTODOS: PARTIciparam deste estudo 30voluntários foram divididos em 3 grupos, um grupo de 10 estudantes de Fisioterapia, outro por 10 fisioterapeutas e o terceiro com 10 terapeutas da mão. Cada avaliador realizou as medidas no mesmo molde de mão, utilizando o goniômetro e em seguidadois softwares de fotogrametria, o CorelDraw® e o ALCimagem®. RESULTADOS: Os resultados revelaram que os grupos e os métodos propostos apresentam confiabilidade interexaminadores no geral classificada como excelente (ICC 0,998 I.C. 95% 0,995 - 0,999). Na avaliação intraexaminadores, foi encontrado excelente nível de confiabilidade entre os três grupos. Na comparação entre os grupos para cada ângulo e cada método, observou-se que não houve diferença significativa entre os grupos para a maioria das medidas. CONCLUSÃO: A goniometria e a fotogrametria são métodos confiáveis e reprodutíveis para avaliação de medidas na mão. Porém, pela escassez de referências semelhantes, necessita-se de estudos aprofundados para definição de parâmetros de normalidade entre os métodos nas articulações da mão. Nível de Evidência II, Estudo Diagnóstico.
Resumo:
Revisar os artigos publicados recentemente na imprensa científica brasileira sobre o tema geral de exercício físico. Todos os artigos publicados em 2010/2011 encontrados por meio do descritor exercício foram coletados em 11 periódicos brasileiros. Eles foram filtrados manualmente de modo a excluir todos os artigos de pesquisa que não fossem originais. Foram agrupados de acordo com categorias e subcategorias de assunto. Foi elaborado um breve resumo de todos os artigos incluídos, comparando os similares entre si. As interações mais comuns referem-se a exercício e sistema cardiovascular e metabolismo e sistema locomotor, nessa ordem. O volume de pesquisa científica nesse campo é grande e de qualidade suficiente que justifica o destaque.
Resumo:
This paper makes an analysis on the new technological resources related to architectural drawing that make use of the hand drawing. It tests and evaluates the use of new tools such as tablets (e.g. Wacom Bamboo), graphic tablets (e.g. iPad), tablet/screen hybrids (e.g. Wacom Cintiq) and electronic pens (e.g. Wacom Inkling) in the making of free drawings oriented for the developing of graphic products related to the projective act in architecture and design. The paper makes a comparative e interpretative analysis through the reading of those products.
Resumo:
Here, we present the adaptation and optimization of (i) the solvothermal and (ii) the metal-organic chemical vapor deposition (MOCVD) approach as simple methods for the high-yield synthesis of MQ2 (M=Mo, W, Zr; Q = O, S) nanoparticles. Extensive characterization was carried out using X-ray diffraction (XRD), scanning and transmission electron micros¬copy (SEM/TEM) combined with energy dispersive X-ray analysis (EDXA), Raman spectroscopy, thermal analyses (DTA/TG), small angle X-ray scattering (SAXS) and BET measurements. After a general introduction to the state of the art, a simple route to nanostructured MoS2 based on the decomposition of the cluster-based precursor (NH4)2Mo3S13∙xH2O under solvothermal conditions (toluene, 653 K) is presented. Solvothermal decomposition results in nanostructured material that is distinct from the material obtained by decomposition of the same precursor in sealed quartz tubes at the same temperature. When carried out in the presence of the surfactant cetyltrimethyl¬ammonium bromide (CTAB), the decomposition product exhibits highly disordered MoS2 lamellae with high surface areas. The synthesis of WS2 onion-like nanoparticles by means of a single-step MOCVD process is discussed. Furthermore, the results of the successful transfer of the two-step MO¬CVD based synthesis of MoQ2 nanoparticles (Q = S, Se), comprising the formation of amorphous precursor particles and followed by the formation of fullerene-like particles in a subsequent annealing step to the W-S system, are presented. Based on a study of the temperature dependence of the reactions a set of conditions for the formation of onion-like structures in a one-step reaction could be derived. The MOCVD approach allows a selective synthesis of open and filled fullerene-like chalcogenide nanoparticles. An in situ heating stage transmission electron microscopy (TEM) study was employed to comparatively investigate the growth mechanism of MoS2 and WS2 nanoparticles obtained from MOCVD upon annealing. Round, mainly amorphous particles in the pristine sample trans¬form to hollow onion-like particles upon annealing. A significant difference between both compounds could be demonstrated in their crystallization conduct. Finally, the results of the in situ hea¬ting experiments are compared to those obtained from an ex situ annealing process under Ar. Eventually, a low temperature synthesis of monodisperse ZrO2 nanoparticles with diameters of ~ 8 nm is introduced. Whereas the solvent could be omitted, the synthesis in an autoclave is crucial for gaining nano-sized (n) ZrO2 by thermal decomposition of Zr(C2O4)2. The n-ZrO2 particles exhibits high specific surface areas (up to 385 m2/g) which make them promising candidates as catalysts and catalyst supports. Co-existence of m- and t-ZrO2 nano-particles of 6-9 nm in diameter, i.e. above the critical particle size of 6 nm, demonstrates that the particle size is not the only factor for stabilization of the t-ZrO2 modification at room temperature. In conclusion, synthesis within an autoclave (with and without solvent) and the MOCVD process could be successfully adapted to the synthesis of MoS2, WS2 and ZrO2 nanoparticles. A comparative in situ heating stage TEM study elucidated the growth mechanism of MoS2 and WS2 fullerene-like particles. As the general processes are similar, a transfer of this synthesis approach to other layered transition metal chalcogenide systems is to be expected. Application of the obtained nanomaterials as lubricants (MoS2, WS2) or as dental filling materials (ZrO2) is currently under investigation.