6 resultados para complex movements

em Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho"


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Pós-graduação em Ciência da Computação - IBILCE

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The present study emerged from discussions of the Grupo de Estudos e Pesquisas Pedagógicos em Ginástica (GEPPEGIN), from UNESP/RC, and had the intention to understand and analyze the existence and discussions on Body Image and Gymnasts in researches and publications over the last decade (2003-2013) in Brazil. Body image refers to the mental representation of the body, structured according to the world. It is known that cultural and social pressures have been imposing an ideal body model and generating consequences as body dissatisfaction. Therefore, this study aims discuss the body image of Artistic and Rhythmic gymnastics' athletes. The choice of these modalities is justified by the fact that they are directly related to body image, especially the issue of the necessity of low body weight, beyond the relationship of complex movements and the need of good body awareness (BERRY; HOWE, 2000; KERR et al., 2006). For the development of this qualitative research, a documentary survey were conducted over the last decade (2003-2013) on Body Image and Gymnasts, focusing on researches of strictosensu postgraduate programs, recognized by CAPES, and scientific papers published in journals indexed in Brazil and classified in Physical Education Qualis. For categorization of information related to the theme, was used the organization by the units of analysis proposed by Laville and Dionne (1999). Based on the studies analyzed, perceive a dissatisfaction with body image to most participants from all studies, being athlete or nonathlete. Vieira and colleagues (2009) assume that the body pattern required for performance on competitive Gymnastics is close to the aesthetics of slim body served as body pattern for girls/teenager

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Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC

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A subduction complex composed of ocean floor material mixed with arc-derived metasediments crops out in the Elephant Island group and at Smith Island, South Shetland Islands, Antarctica, with metamorphic ages of 120-80 Ma and 58-47 Ma? respectively. Seven metamorphic zones (I-VII) mapped on Elephant Island delineate a gradual increase in metamorphic grade from the pumpellyite-actinolite facies, through the crossite-epidote blueschist facies, to the lower amphibolite facies. Geothermometry in garnet-amphibole and garnet-biotite pairs yields temperatures of about 350 degrees C in zone III to about 525 degrees C in zone VII. Pressures were estimated on the basis of Si content in white mica, Al2O3 content in alkali amphibole, Na-M4/Al-IV in sodic-calcic and calcic amphibole, Al-VI/Si in calcic amphibole, and jadeite content in clinopyroxene. Mean values vary from about 6-7.5 kbar in zone II to about 5 kbar in zone VII. Results from the other islands of the Elephant Island group are comparable to those from the main island; Smith Island yielded slightly higher pressures, up to 8 kbar, with temperatures estimated between 300 and 350 degrees C. Zoned minerals and other textural indications locally enable inference of P-T-t trajectories, all with a clockwise evolution. A reconstruction in space and time of these P-T-t paths allows an estimate of the thermal structure in the upper crust during the two ductile deformation phases (D-1 & D-2) that affected the area. This thermal structure is in good agreement with the one expected for a subduction zone. The arrival and collision of thickened oceanic crust may have caused the accretion and preservation of the subduction complex. In this model, D-1 represents the subduction movements expressed by the first vector of the clockwise P-T-t path, D-2 reflects the collision corresponding to the second vector with increasing temperature and decreasing pressure, and D-3 corresponds to isostatic uplift accompanied by erosion, under circumstances of decreasing temperature and pressure.

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The Precambrian Rio Paraíba do Sul Shear Belt comprises a 200-km-wide anastomosing network of NE-SW trending ductile shear zones extending over 1000 km of the southeastern coast of Brazil. Granulitic, gneissic-migmatitic, and granitoid terrains as well as low- to medium-grade metavolcanosedimentary sequences are included within it. These rocks were affected by strong contractional, tangential tectonics, due to west-northwestward oblique convergence of continental blocks. Subsequent transpressional tectonics accomodated large dextral, orogen-parallel movements and shortening. The plutonic Socorro Complex is one of many deformed granites with a foliation subparallel to that of the shear belt and exposes crosscutting relationships between its tectonic, magmatic, and metamorphic structures. These relationships point to a continuous magmatic evolution related to regional thrusts and strike slip, ductile shear zones. The tectonic and magmatic structural features of the Serra do Lopo Granite provide a model of emplacement by sheeting along shear zones during coeval strike-slip and cross shortening of country rocks. Geochronological data indicate that the main igneous activity of Socorro Complex spanned at least 55 million years, from the late stage of the northwestward ductile thrusting (650 Ma), through right-lateral strike slip (595 Ma) deformation. The country rocks yield discordant age data, which reflect a strong imprint of the Transamazonian tectono-metamorphic event (1.9 to 2.0 Ma). We propose a model for the origin of calcalkaline granites of the Ribeira Belt by partial melting of the lower crust with small contributions of the lithospheric mantle during transpressional thickening of plate margins, which were bounded by deep shear zones. The transpressional regime also seems to have focused granite migration from deeper into higher crustal levels along these shear zones.