Respuesta pulpar a materiales de restauración tipo resina

Las resinas compuestas y adhesivos dentales se utilizan ampliamente para la restauración de dientes con pulpas vitales. La preferencia en el uso de estas resinas compuestas podría estar atribuida a que son materiales con buenos resultados estéticos y se consideran materiales de restauración estables. Sin embargo se ha demostrado que son susceptibles a la degradación y liberación de la fracción de sus componentes y que cierta cantidad de los monómeros de su composición permanecen sin polimerizar por un largo periodo de tiempo, pudiendo estos filtrarse hacia el tejido pulpar y causar alteraciones de la actividad fisiológica de las células de la pulpa (DPCs) (1). Además, estudios in vitro han demostrado que los componentes de las resinas compuestas tienen potenciales tóxicos, generando respuestas inmediatas y a largo plazo luego de su aplicación. Identificar el potencial tóxico y deletéreo de los materiales de restauración sobre el tejido pulpar es de gran interés y relevancia clínica, por ello este estudio comprende en una revisión de la literatura acerca de la respuesta pulpar a los materiales de restauración tipo resina.

Eficácia dos sistemas de impressão digital vs impressões convencionais na medicina dentária

Dissertação para obtenção do grau de Mestre no Instituto Superior de Ciências da Saúde Egas Moniz

Estratégias para a preservação do rebordo alveolar

Dissertação para obtenção do grau de Mestre no Instituto Superior de Ciências da Saúde Egas Moniz

Casas modernas na orla marítima de João Pessoa 1960 a 1974

This paper studies modern houses built in the neighborhoods of Cabo Branco, Tambaú and Manaíra by the seafront in Joao Pessoa, built between 1960 and 1974. We start from the already widespread notion that Brazilian Modern Architecture was inspired by foreign ways, mainly European but also American here recast, adapted, often innovating repertoire and ideas received (Y. BRUAND, 2005; H. SEGAWA, 2002; C. E. COMAS, 2002; C. E. COMAS, 2002; M. M. ACAYABA e S. FICHER, 1982; M. B. C. ARANHA, 2008; F. C. L. LARA, 2001; R. V. ZEIN, 2005; L. E. AMORIM, 1999, C. V. STINCO, 2010). With this look, after a field study, we collected 61 specimens in the collection of the Central Archive of João Pessoa City Hall, in order to identify which reformulations, adaptations or innovations would exist in modern houses built along the coast in João Pessoa. As we try to analyze the houses by what the bibliography had suggested (G. C. ARGAN, 1992; L. CORBUSIER, 2002; C.E.D. e M. ADRIÀ, 2007; K. FRAMPTON, 1997; H. H. HITCHCOCK, 1976; L. BENEVOLO, 2004; R. DE FUSCO, 1992, N . PEVSNER, 2002; M. RAGON, 1986; B. RISEBERO, 1982; E. ROBBINS, 1997; W. J. R. CURTIS, 1982; V. SCULLY, 2003; B. ZEVI, 1984; D. DUNST, 1999; A. COLQUHOUN, 2002; R. WESTON, 2005; A. IÑAKI, 2006; J. PETER, 1994) the starting idea seemed to us not sufficiently developed. So we decided, first, to undertake a literature review comparing speech and image of modern houses most often cited by international and national literature, following a script freely inspired the Vitruvian triad: the functional and spatial (sectorization, guidance, spatiality, movement); constructive aspects (structural elements, modulation, deck, sealing), and aesthetic aspects (composition, apertures, ornaments) (Cap.1), then cast a look under this same route in 61 specimens obtained initially, trying to verify any specificities they would have (Cap.2). Failing to deepen the analysis of all these examples, we chose 10 projects which were redesigned and described in more detail to which we supplement with the aspects of place - location / lot location, access, axiality. (E. C. MAHFUZ, 2002; J. C. MIGUEL, 2000; E. C. CHEREGATI, 2007; M. COTRIM, 2007). (Cap. 3). The documentation and description resulting allowed us to approach some related questions about the canonical transcripts hybridizing, adoptions and any vernacular innovations of modern houses along the coast, We conclude that the appellants and anachronistic elements isolates found in each of the studied bind to the Brazilian Modern Architecture

Do pouco mais que nada até ao coletivo orgânico (sobre o processo de criação do espetáculo Tem dói-dói?)

Dissertação de Mestrado, Comunicação, Cultura e Artes, Especialização em Teatro e Intervenção Social e Cultural, Faculdade de Ciências Humanas e Sociais, Universidade do Algarve, 2014

UBS RN-7: proposta arquitetônica para um padrão flexível de unidade básica de saúde para a zona bioclimática 7 do RN, com ênfase na sustentabilidade ambiental

Standardization and sustainability: these two apparently antagonistic words find the challenge of uniting in a flexible architectonic proposal. This was the idea that motivated the proposal of this assignment, whose appearing is bound up with the necessity of thinking about standardized spaces that attend on functional criterias and environmental sustainability, in reply to an existing real demand. The assignment consists of an architectonic proposal for a flexible standard of a Basic Unit of Health for the bioclimatic zone 7 of RN (UBS RN-7), with emphasis in the environmental sustainability. The project contemplates innumerable involved variables, such as: obedience to the current law of the Health Ministry for the UBSs; formal/aesthetic aspects; criterias of expansiveness of the UBS I for the UBS II; relative aspects to the constructive rationality and, mainly, sustainability aspects. With the intention to unite the variables and, also, glimpsing a proposal that could reach a good functional performance, aesthetic, of environment comfort and energetic efficiency, it was also necessary to consider concepts about the flexibility of the envelopment. The elaboration of the architecture first draft was based on bibliographical research, conceptual studies and references, elaboration of the architectonic program and the draft development for the UBS port I and the UBS port II. To the end, an implantation data sheet for the project is proposed for the UBS standard project, where strategies of thermal isolation, shadowing and thermal inertia are adopted and combined to three possible types of lot, resulting in 24 possibilities of implantation

La modernidad y la posmodernidad como marco de referencia del objeto como arte

En este texto se muestran los puntos de mediación así como los desencuentros entre la modernidad y la posmodernidad dentro de la esfera estética. Este planteamiento es necesario para vislumbrar la relación que el arte y la publicidad materializan en Absolut Art Collection. Armonizar el diálogo entre el enunciado comercial de una marca y su ejecución no sólo en instancias artísticas, sino la consolidación de una estructura formal en el terreno del arte, exige la contextualización de esta plataforma como eje rector del documento. Es decir, las nuevas consideraciones en el escenario artístico nacen en la creación de un espacio de significado entre la modernidad y la posmodernidad, el cual conlleva elementos teóricos y prácticos gestados en la reflexión de cambios estéticos.

Enxerto de tecido conjuntivo tunelizado – a propósito de um caso clínico

Artigo licenciado com uma Licença Creative Commons - Atribuição Não Comercial Sem Derivações 4.0 Internacional - https://creativecommons.org/licenses/by-nc-nd/4.0/

Obesidad, sobrepeso y dureza de los alimentos en relación con la erupción dental permanente adelantada en niños escolares de 6-12 años

Introducción. Algunos factores extrínsecos e intrínsecos se han relacionado con la alteración de la cronología de erupción dental permanente, dicha alteración puede tener como consecuencia problemas esqueléticos, maloclusión dental, y estéticos; además podría complicar el diagnóstico y tratamiento ortodóntico. Por otra parte, la obesidad en México es uno de los principales problemas de salud. Objetivo. Determinar la relación entre el sobrepeso, obesidad y dureza de los alimentos con la erupción dental permanente adelantada en niños escolares de 6 a 12 años de edad. Materiales y método. Estudio transversal realizado en el 2013, a niños de 6 a 12 años de edad, de escuelas primarias del área metropolitana de Monterrey, México (n=384). Se midieron las variables, erupción dental permanente, estado nutricio y la frecuencia de consumo de alimentos duros. El plan de análisis utilizado fue descriptivo y Xi2 para determinar la relación de las variables de interés. Se realizó la encuesta a los padres sobre la frecuencia de consumo de alimentos duros, se llevó a cabo la exploración intraoral para el registro de la EDPA, el registro de peso y talla de los niños para determinar su estado nutricio. A los alimentos incluidos en la encuesta se hicieron pruebas de corte utilizando un analizador de textura modelo TA.XTplus. Resultados. el promedio de edad fue de 9 años con una DE de 1.8, el 51% de la muestra fueron del género femenino, el 46.6% presentó obesidadsobrepeso, y se identificó EDPA en el 50.4% de los casos. No se encontró relación entre EDPA y obesidad-sobrepeso (p=0.283), en cuanto a la EDPA con el género femenino no guarda relación con la (p=0.26), mientras que en el masculino se encontró evidencia de la relación entre y EDPA (p=0.037). La EDPA no mostró relación con consumo de algunos alimentos duros; zanahoria cruda (p=0.048), manzana (p=0.001), carne (p=0.017) y pan tostado (p=0.049). Conclusión. No se encontró diferencia significativa de la relación entre el sobrepeso y obesidad con la erupción dental permanente adelantada, sin embargo se puede concluir que si existe relación entre la obesidad y sobrepeso con la erupción dental permanente adelantada con el género masculino. En cuanto a la relación que guarda la erupción dental permanente con los alimentos duros se encontró solamente en el consumo de algunos alimentos, los cuales son los de mayor fuerza de corte de acuerdo a las pruebas de corte realizadas, como la carne, zanahoria, manzana y de menor fuerza el pan tostado.

Estudo comparativo de pás para aerogeradores de grande porte fabricadas em materiais compósitos reforçadas com fibra de carbono ou fibra de vidro

The research and development of wind turbine blades are essential to keep pace with worldwide growth in the renewable energy sector. Although currently blades are typically produced using glass fiber reinforced composite materials, the tendency for larger size blades, particularly for offshore applications, has increased the interest on carbon fiber reinforced composites because of the potential for increased stiffness and weight reduction. In this study a model of blade designed for large generators (5 MW) was studied on a small scale. A numerical simulation was performed to determine the aerodynamic loading using a Computational Fluid Dynamics (CFD) software. Two blades were then designed and manufactured using epoxy matrix composites: one reinforced with glass fibers and the other with carbon fibers. For the structural calculations, maximum stress failure criterion was adopted. The blades were manufactured by Vacuum Assisted Resin Transfer Molding (VARTM), typical for this type of component. A weight comparison of the two blades was performed and the weight of the carbon fiber blade was approximately 45% of the weight of the fiberglass reinforced blade. Static bending tests were carried out on the blades for various percentages of the design load and deflections measurements were compared with the values obtained from finite element simulations. A good agreement was observed between the measured and calculated deflections. In summary, the results of this study confirm that the low density combined with high mechanical properties of carbon fibers are particularly attractive for the production of large size wind turbine blades

Estudo da viabilidade do processo de reciclagem do material descartado do sistema Zirkonzanh® de produção de próteses dentárias

At present, the material of choice for performing aesthetic dental prosthetic work is in the ceramic. Among them, the ceramic base of stabilized zirconia with 3% yttria (3Y - TZP) stand out for having excellent physical and mechanical properties. During the machining of blocks of zirconia in the laboratory to prepare the various types of prostheses, much of the material is given off in the form of powder, which is subsequently discarded. The waste of this material results in financial loss, reflecting higher final cost treatment for patients, as well as damage to the environment, thanks to the processes involved in the manufacture and disposal of the ceramic. This research, pioneered the recycling of zirconium oxide powder obtained during milling of dental crowns and bridges, we highlight the social and environmental aspects and aims to establish a protocol for the reuse of waste (powder of zirconia Zirkonzahn® system) discarded to obtain a new block of compacted zirconia to maintain the same mechanical and microstructural properties of commercial high-cost imported material. To compare with the commercial material, samples were uniaxially (20 MPa) and isostatically (100 MPa), and its mechanical and microstructural characterization was performed through tests of density, porosity, dilatometry, X-ray diffraction (XRD), hardness, fracture toughness, resistance to fracture electron microscopy (SEM) and analysis of grain size. The results observed in the samples were isostatically pressed similiares those obtained with samples from the commercial material demonstrating the viability of the process

Un pájaro azul en Costa Rica: la función de la traducción de L’Oiseau bleu en la Costa Rica de 1912

El estudio procura desvelar la función de El pájaro azul (traducción de Roberto Brenes Mesén) dentro del contexto histórico en que surge. Tras describir y analizar las especificidades ideológicas, sociales y literarias de contexto, individuos y textos involucrados, se concluye que la traducción pudo haber funcionado como un instrumento para promover cambios ideológicos, sociales y estéticos dentro de la sociedad costarricense de principios del siglo veinte.This study seeks to describe the role of El pájaro azul (translated by Roberto Brenes Mesén) when it first appeared in Costa Rica in 1912. A description is provided of the ideological, social and literary features present in the context, and of the agents and texts involved in the production of El pájaro azul. The analysis of these features makes it possible to state that the text is likely to have been an instrument used to promote ideological, social and aesthetic changes within the 20th century Costa Rican society.

Factibilidad financiera del servicio de procesamiento de células madre y factores de crecimiento de tejidos

La Medicina Regenerativa con terapia celular es un componente del sector biotecnológico, que representa una innovadora alternativa para la curación de enfermedades para las cuales no se tienen soluciones eficientes con la medicina convencional y que genera enormes beneficios en las personas que requieren de un servicio médico innovador y eficiente -- Asimismo se ha convertido en una opción para las personas que desean cambios estéticos en sus cuerpos, pero que no están dispuestas a someterse a los inconvenientes de las cirugías tradicionales -- Se hace entonces necesaria la implementación de un servicio de procesamiento de Células Madre para regeneración de tejidos, que satisfaga las necesidades de las personas que no encuentran soluciones adecuadas a sus problemas estéticos o médicos en el marco de la medicina tradicional -- La creación e implementación de un servicio de estos requiere su respectivo análisis de factibilidad financiera -- El análisis de rentabilidad arroja un VPN de 155´068.758 COP -- Los indicadores muestran crecimiento en el horizonte de tiempo -- El análisis de riesgo indica que la probabilidad de que se presente ese valor de VPN o mayor es de 5,2%, la probabilidad de que sea menor es de 94,8% -- Igualmente el análisis de riesgos muestra una probabilidad de que el VPN sea positivo de 75,9% y de que sea negativo de 24,1%

Entre o cartão-postal e a cidade real: um estudo sobre paisagem e produção imobiliária em Natal/RN

Recent studies concerning the landscape have investigated the most important activities that contribute for its modification and have tried to better understand the society through the marks left by its quotidian. It is understood that singular landscapes constitute the cultural patrimonies of the cities, once they are part of the daily life of the citizens and are present in their social representations. Some contemporary authors defend the preservation of the natural and urban landscape trying, specially, to keep its importance for the local population. Natal is a city where the ambient qualities are well defined and known by the beauty of the area where it is located. Situated just between a river and the sea, the city grew following its geographic characteristics. The Potengi River, the Atlantic Ocean and the vast dunes ecosystem represented natural limits to the urban expansion; at the same time they have favored the development of a landscape pattern marked by the dialectic between the natural elements and the human interventions. However, this relationship changed after the intensification of the high rising development process that took place since the 1960s. The urban legislation tried to preserve the features of the local landscape delimiting Areas for Controlling Building High , destined to protect the scenic value of some parts of the city. On the other hand, the civil construction sector has made constant pressure in sense to abolish or to modify this legal instrument, aiming profits that have increased, in the 1990s, because of the consumption and the qualification of the urban space for tourist activities. It is necessary the raising of new elements to stimulate the quarrel about the landscape preservation, the process of the urban space production and the best way for the legislation implementation. This work tries to raise elements about the subject at local level, in sense to use Natal City experience to contribute for the formulation of indicators to raise the question about the lack of measure for subjective values, for example the cultural and affective value of the landscape. The natural elements inserted in the urban profile, represent strong visual references and supply identity to the town; they are part of the collective imaginary and are detached in the social context of the city. Then, why the preservation of the landscape, that estimates the improvement in the quality of life, is not enough to justify the controlling building high already previewed as part of Natal City Legislation? These questions send us to the approach of the landscape, as a community patrimony, alerting that some of its significant esthetics attributes must be preserved as a legacy for the future generations

Creación Colectiva: doble lectura de un proceso artístico. Estética y Relación en un experimento performático contemporáneo

Esta tesis indaga en la interacción entre los aspectos estéticos y relacionales que tienen lugar en un proceso de creación colectiva. Durante los últimos años han proliferado multitud de formas de colaboración artística, a menudo asociadas a movimientos de preocupación social o a comunidades ideológicas y alejadas de los circuitos institucionales, moviéndose entre nuevas posibilidades de autogestión y espacios alternativos de difusión. A fin de entender en primera persona cuáles son las implicaciones de la inclusión del "otro" en el proceso creativo individual, realizamos una experiencia autogestionada de creación colectiva en Barcelona entre los años 2007 y 2011. El presente estudio propone una doble lectura crítica del experimento, planteada en dos niveles paralelos: el nivel de la propia construcción artístico-estética y el nivel de las relaciones que se establecieron entre los participantes a lo largo del proceso. A través del abordaje empírico, la doble lectura crítica y el estudio teórico del contexto, demostramos que la colectivización y "relacionalización" del hecho creativo contribuyen a la rehumanización de la práctica artística, socializando los procesos, contextualizando los mensajes y proponiendo el diálogo como principal herramienta de creación. ———— ABSTRACT This thesis explores the interaction between the aesthetic and relational aspects that take place in a process of collective creation. During the last few years, many new forms of artistic collaboration have proliferated, often associated with socially engaged movements or ideological communities, away from institutional art circuits, moving between new possibilities of self-management and alternative show spaces. In order to understand first-hand what the implications of the inclusion of the “other” are in the individual creative process, we conducted a self-managed collective creation experience in Barcelona from 2007 to 2011. This study proposes a double critical reading of the experiment, displayed in two parallel levels: the level of artistic-aesthetic construction itself and the level of relations established between participants throughout the process. Through the empirical approach, double critical reading and a theoretical study of the context, we demonstrate that the collectivization and "relationalization" of the creative act contribute to re-humanizing the artistic practice, socializing processes, contextualizing messages and proposing dialogue as the main tool of creation.