960 resultados para Monomer conversions
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Pós-graduação em Química - IQ
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Pós-graduação em Química - IQ
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Pós-graduação em Biotecnologia - IQ
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Pós-graduação em Química - IQ
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Pós-graduação em Ciência dos Materiais - FEIS
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Pós-graduação em Zootecnia - FCAV
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Conselho Nacional de Desenvolvimento Científico e Tecnológico(CNPq)
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What became accustomed to call “paganism” is undoubtedly one of the most significant forms of what is designated as “popular religiosity”. This expression, which seems useful when a generalization is required, shows all its weakness when a more precise and objective observation of a particular religion is attempted. Would the official visigothic kingdom’s “conversion” to Catholicism, with Recardo (586-601) at the Council of Toledo of 589 have effectively matched to the “conversion” of this kingdom’s population? Firstly, it is necessary to consider, in beyond the exalting intentions of the sources of that moment, that mass conversions do not imply a radical change in the convictions and religious practices of an entire people. Secondly, that “conversion” and “Christianization” are not synonymous. “Religiosity”, which includes the “conversion”, implies a fundamental religious attitude, which can simply be interior and personal. On the other hand, “religion”, in which “Christianization” is included, would correspond to a public aspect, institutionalized, which elaborates a set of techniques aiming, as in the case of “religiosity”, the guarantee of the supernatural Thus, elevated to the position of “official religion,” Catholic Christianity would live with a series of rites, rituals, devotions, from the previous “religiosity” that, through its ecclesiastical perspective, would be reprehensible, considered marginal and something that would lead to error. However, on the eve of the Muslim invasion in 711, not only among the laity but even in ecclesiastical segments, the manifestations of the “paganism” still were aim of coactive condemnation in the Catholic kingdom of Toledo’s councils.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Reabilitação Oral - FOAR
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Pós-graduação em Biofísica Molecular - IBILCE
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Objectives: This study investigated the repairs of resin composite restorations after using different surface treatments.Design: Eighty four truncated cones of Filtek Z350 were prepared and thermo-cycled (20,000 cycles). Surfaces were roughened with diamond bur and etched with 37% phosphoric acid. Those cones were divided into 7 groups (N=12): 1) Prime&Bond 2.1; 2) aluminum oxide sandblasting+Prime&Bond 2.1; 3) Er:YAG laser treatment+Prime&Bond 2.1; 4) 9.6% hydrofluoric acid for 2 min-Fsilane coupling agent.; 5) silane coupling agent; 6) auto-polymerized acrylic monomer+Prime&Bond 2.1; 7) Adper Scothbond SE. Teflon device was used to fabricate inverted truncated cones of repair composite over the surface-treated. The bonded specimens were stressed to failure under tension. The data were analyzed with oneway ANOVA and Tukey tests.Results: Mean repair strengths (SD, in MPa) were, Group-2: 18.8a; Group-1: 18.7a; Group-6: 13.4ab; Group-7: 9.5bc; Group-3: 7.5bcd; Group-4: 5.2cd; Group-5: 2.6d.Conclusions: The use of diamond bur and a conventional adhesive and the use of aluminum oxide sandblasting prior to adhesive provided a simple and cost-effective solutions to composite repair. Er:YAG laser, silane alone, 9.6% hydrofluoric acid plus silane or a self-etching adhesive results in inferior composite repair strengths. (C) 2015 Elsevier Ltd. All rights reserved.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)