195 resultados para Superstructure


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The temples of Southeast Asia are remarkable and intriguing in their architecture, in that they are obviously derivative from Indic canon and yet
profoundly original and different from the corpus of the subcontinent. Further, the regional nuances of these temples, whether in Java, Cambodia or Champa, defy obvious and linear connections within these traditions and with the pan-Indic corpus. While epigraphists, Sanskritists and historians have made significant connections between these temple building traditions, much work remains to be done on the compositional and architectural linkages along the trading routes of South and Southeast Asia. This paper is an early attempt at understanding the compositional connections, as evident in the temple forms of early southeast Asia. To elucidate the complex material, the authors deploy a comparative method on two levels. Between ideal notions of the Hindu temple and shared cosmogony on one hand and individual temples as a realization of the ideal on the other. The consideration of the compositional material yields some surprisingly rich and varied connections. For example, the affinities between 7th century cellas in Cambodia and early Gupta models from central India are difficult to ignore. Further, the linkages between these cellas and the early Deccan experiments in structural stone raise questions about both idioms. The range of experimentation in Cambodia
(in plan forms, superstructure and construction methods are discussed with reference to their Indic antecedents. The findings of the paper raise questions about the relation between temple and treatise; between theory and practice and between the individual temple and its collective corpus.

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This thesis is a literary history which argues that much of the short fiction published in Australia during the 1980s was deeply influenced by the rapid social and political changes during that decade. My argument concentrates on links between the short stones of the period and the socio/political environment into which they were written. The decade was marked by massive changes in technology, the workplace, and in all other areas of social life. In general terms, the ideology of the 'market' predominated over notions of small 'l' liberalism and the last vestiges of state intervention in the economy. The Australian short story benefited from the social 'experiments' of the 1970s in that its concerns became broader - encompassing the onslaught of feminism, the foregrounding of 'multicultural' concerns, and a move away from the bush into the city as a primary site for narratives. The decade was a rich period for the genre. Why was there a tolerance for a new diversity, in literary terms, when the social and political environment was turning to the right? This is a central question of the thesis. I argue that instead of the 'base' determining the 'superstructure' (i.e. culture) the superstructural changes were essential to the deconstruction of the social and political landscape. This thesis contends that a relationship always exists between the 'literary' and 'the social'. I argue, among other things, that many of the short fictions were influenced by 'postmodern' theory to the extent that they became a form of traumatic note-taking, which masked a late romanticism beneath a fear of the sovereign subject. The fear of 'closure' which insinuated itself into many of the texts, besides being a form of academic corrective, was also a flight from emotional candor. I argue that storytelling was, in many cases, the loser.

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Routine sand dredging for alluvial diamonds at Oranjemund on the southern coast of Namibia exposed remnants of a long forgotten Portuguese merchant ship believed to have wrecked in the 1530s. The rescue excavations yielded over 40 tons of cargo consisting of thousands of gold and silver coins, tons of copper and lead ingots, and large quantities of ivory together with food refuse, part of personal possessions and the superstructure of the ship. This paper discusses the cargo from the shipwreck. The varying provenances show that overland inter-and intra-regional networks fed into the maritime trade between Europe and the Indian sub-continent. As such, the wreck is a lens through which we can view what was happening on the seas as well as on land. Finally we consider wider issues raised by this discovery relating to the protection and management of such material wherever it may be found in future.

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We have shown that the amyloid fibrilization of Aß16-22 follows a reverse hofmeister trend in pILs. Fast fibrilization rates of seconds can be achieved.

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A novel hierarchical MnO2/carbon strip (MnO2/C) microsphere is synthesized via galvanostatic charge-discharge of a MnO@C matrix precursor where the carbon is from a low-cost citric acid. This hierarchical structure is composed of manganese oxides nanoflakes and inlaid carbon strips. The ultrathin nanoflakes assemble to form porous microspheres with a rippled surface superstructure. Due to its improved conductivity and remarkable increased phase contact area, this novel structure exhibits an excellent electrochemical performance with a specific capacitance of 485.6 F g -1 at a current density of 0.5 A g-1 and an area capacitance as high as 4.23 F cm-2 at a mass loading of 8.7 mg cm-2. It also shows an excellent cycling stability with 88.9% capacity retention after 1000 cycles. It is speculated that the present low-cost novel hierarchical porous microspheres can serve as a promising electrode material for pseudocapacitors. © 2014 American Chemical Society.

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O presente trabalho de pesquisa acadêmica abrange a análise da conjuntura política do processo de transição democrática no Brasil e no Paraná, ocorrida no final da década de 1970 e inícios dos anos 80. No capítulo introdutório examino os elementos teórico-metodológicos, que são as categorias de análise que utilizo no estudo da situação concreta brasileira, como contexto amplo, e da conjuntura das eleiçôes de 1982 e do governo de José Richa no Paraná. Era necessário examinar a concepçâo "ampliada" de Estado, o conceito de estrutura e de superestrutura do bloco histórico e a concepção da vertente da democracia liberal e da vertente da democracia popular, no enfoque da literatura do materialismo histórico-dialético, de autores clássicos e modernos. No segundo capítulo examino o projeto de transição democrática dos generais presidentes Geisel e Figueiredo: um plano dos militares e das elites brasileiras para salvar as elites no poder, na travessia pelo alto. O projeto não ia além da legitimação do regime e do modelo econômico pela passagem do governo militar aos civis, por um processo eleitoral duvidoso. No Paraná, objetivo principal da pesquisa, examino o projeto liberal do governo do PMDB de Richa, desde a organizaçâo partidária, a elaboraçâo das diretrizes de governo, a campanha eleitoral, a participaçâo de intelectuais de ponta na campanha, as alianças do PMDB com os setores populares da sociedade até a composição e a "direitização" do governo. "OS BÁRBAROS ESTÃO CHEGANDO", título principal da dissertação, era a denominação que a aristocracia (elite) curitibana atribuiu a José Richa, quando o mesmo ganhou as eleições ao governo do Paraná, pelo fato de ser do interior do Estado e não fazer parte do mundo civilizado da Curitiba cosmopolita. No terceiro capítulo examino a questão da democratização da escola pública do Estado pela instituição das eleições para diretor e vice-diretor da escola, pelos professores, servidores, alunos e pais de alunos. Digo que a democracia vai além do decreto governamental que estabelece as eleições. Digo ainda que o discurso na prática é outro, no caso do governo Richa e da educação. A questão básica da pesquisa é trabalhar a idéia de que a educação é um campo de disputas e confrontos de classes pela hegemonia do poder, em que a classe dominante luta para manter-se no poder como classe dirigente e as classes subalternas ora se mantém aliadas e como classes auxiliares à classe dominante, ora consentem e raras vezes rebelam-se contra a dominaçâo da classe dirigente.

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o objetivo central desse trabalho é desenvolver uma reflexão geral sobre a relação entre Estado, cidadania e educação e trazê-la para a realidade educacional bras ileira, com uma preocupaçao de atualidade. Parte-se de uma discussão dos conceitos formulados por Antonio Grams ci para o estudo'da superestrutura social, chegando-se aos conceitos de reforma intelectual e moral e de Estado "ético e educador", que permitem pensar o ensino público, obrigatório e gratuito, ministrado pela escola única e comum, como um "dever" do Estado burguês, democrata e re publicano - "elemento primordial" da extensão da cidada nia. Um estudo da ação pedagógica do Estado francês da Terceira República~ desenvolvido a partir de depoimentos de professores do ensino primário da época, evidencia as implicações ideológicas do ensino público quando é promo vido por um Estado "ético e educador", por meio de uma escola que é eficazmente "constitutiva de cidadania". A análise das especificidades e impasses da constituição (ou da não constituição) da cidadania na sociedade brasileira fundamenta uma reflexão sobre as condições atuais da educação pública no Brasil, em que se des tacam tematicamente duas questões: o significado social do ensino profissionalizante e a seletividade da escola elementar, analisada prioritariamente a partir dos fatores externos à escola que a determinam ou seja, as condi çoes de vida das classes subalternas, brevemente enfocados com base na interpretação de dados estatísticos relativos ã evasio escolar e ao poder aquisitivo do s~lirio mínimo. A conjuntura presente de transformaçio política e institucional da sociedade brasileira é avaliada como pr~ pícia ã retomada da luta pela instrução elementar pública e gratuita numa escola única e comum, pelo prolongamento da escolaridade, pela melhor qualidade do ensino, de tal modo que a escola possa finalmente dar a sua contribuição imprescindível à extensão da cidadania a todos os brasileiros.

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This paper aims to analyze dual-purpose systems focusing the total cost optimization; a superstructure is proposed to present cogeneration systems and desalination technologies alternatives for the synthesis process. The superstructure consists of excluding components, gas turbines or conventional steam generators with excluding alternatives of supplying fuel for each combustion system. Also, backpressure or condensing/extraction steam turbine for supplying process steam could be selected. Finally one desalination unit chosen between electrically-driven or steam-driven reverse osmosis. multi-effect and multistage flash should be included. The analysis herein performed is based on energy and mass conservation equations, as well as the technological limiting equation of equipment. The results for ten different commercial gas turbines revealed that electrically-driven reverse osmosis was always chosen together with both natural gas and gasified biomass gas turbines. (C) 2009 Elsevier B.V. All rights reserved.

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The aim of this study was to evaluate the effect of unilateral angular misfit of 100 Km on stress distribution of implant-supported single crowns with ceramic veneering and gold framework by three-dimensional finite element analysis. Two three-dimensional models representing a maxillary section of premolar region were constructed: group 1 (control)-crown completely adapted to the implant and group 2-crown with unilateral angular misfit of 100 Km. A vertical force of 100 N was applied on 2 centric points of the crown. The von Mises stress was used as an analysis criterion. The stress values and distribution in the main maps (204.4 MPa for group 1 and 205.0 MPa for group 2) and in the other structures (aesthetic veneering, framework, retention screw, implant, and bone tissue) were similar for both groups. The highest stress values were observed between the first and second threads of the retention screw. Considering the bone tissue, the highest stress values were exhibited in the peri-implant cortical bone. The unilateral angular misfit of 100 Km did not influence the stress distribution on the implant-supported prosthesis under static loading.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Purpose: The aim of this in vitro study was to quantify strain development during axial and nonaxial loading using strain gauge analysis for three-element implant-supported FPDs, varying the arrangement of implants: straight line (L) and offset (O). Materials and Methods: Three Morse taper implants arranged in a straight line and three implants arranged in an offset configuration were inserted into two polyurethane blocks. Microunit abutments were screwed onto the implants, applying a 20 Ncm torque. Plastic copings were screwed onto the abutments, which received standard wax patterns cast in Co-Cr alloy (n = 10). Four strain gauges were bonded onto the surface of each block tangential to the implants. The occlusal screws of the superstructure were tightened onto microunit abutments using 10 Ncm and then axial and nonaxial loading of 30 Kg was applied for 10 seconds on the center of each implant and at 1 and 2 mm from the implants, totaling nine load application points. The microdeformations determined at the nine points were recorded by four strain gauges, and the same procedure was performed for all of the frameworks. Three loadings were made per load application point. The magnitude of microstrain on each strain gauge was recorded in units of microstrain (mu). The data were analyzed statistically by two-way ANOVA and Tukey's test (p < 0.05). Results: The configuration factor was statistically significant (p= 0.0004), but the load factor (p= 0.2420) and the interaction between the two factors were not significant (p= 0.5494). Tukey's test revealed differences between axial offset (mu) (183.2 +/- 93.64) and axial straight line (285.3 +/- 61.04) and differences between nonaxial 1 mm offset (201.0 +/- 50.24) and nonaxial 1 mm straight line (315.8 +/- 59.28). Conclusion: There was evidence that offset placement is capable of reducing the strain around an implant. In addition, the type of loading, axial force or nonaxial, did not have an influence until 2 mm.

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The aim of this work is to report on the luminescence properties of BaZnSiO4 activated by Eu3+ and Mn2+ ions. Doped and undoped powder samples were prepared by solid-state reaction starting from oxides and carbonates or Ba2SiO4:Eu3+ and Zn2SiO4:Mn2+ precursors. X-ray diffraction powder data, IR vibrational, and UV-vis luminescence spectroscopies were carried out. Results showed that doped and undoped samples from both types of precursors have the same structure and crystallize with a superstructure of hexagonal kalsilite. Vibrational spectroscopy has confirmed the formation of a silicate group, which outlines differences between products and silicate precursors. The observed luminescence assigned to Eu3+ and Mn2+ transitions covered most parts of the visible spectrum, an important requirement for phosphors in fluorescent low-pressure mercury vapor lamps.

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The mechanism of formation and growth of hydrous iron oxide (FeOOH) during the initial stages of forced hydrolyses of ferric chloride aqueous solution was studied by small angle X-ray scattering (SAXS). The effect of the hydrolysis temperature (60°C, 70°C and 80°C) and of the addition of urea on the formation of colloidal particles under isothermal conditions were investigated. Based on the experimental scattering functions in the Guinier range, we suggest the presence of elongated colloidal particles. The particle diameter and length, and their variation with time, were determined by fitting the form factor of prolate ellipsoids to the experimental scattering functions. We have assumed that our solutions are in a dilute state and that all colloidal particles are approximately of the same size. The colloidal particles have geometrical shapes similar to those of the subcrystals that build up the superstructure of β-FeOOH crystals, indicating that the formation of this hydrous iron oxide is governed by an aggregation process. Otherwise, the addition of urea hinders the growth and yields smaller particles, with a reduction in size greater than 50%. © 2000 Elsevier Science B.V. All rights reserved.

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Pós-graduação em Ciências Sociais - FFC