Terapia fotodinâmica e luz branca: aspectos analíticos e perspectivas da viabilidade do tratamento

Photodynamic Therapy (PDT) is a technique used to treat several types of lesions, such as cancer, microbial control, and esthetic dentistry cases. The performance of PDT involves the use of a photosensitizer (PS), which mainly will be located in cancer cells and is irradiated with visible light. This process, when it occurs in the presence of oxygen triggers the formation of reactive oxygen species that are cytotoxic to cells. These species cause cell death and subsequent tumor necrosis. The use of white light as a light source for multispectral Photodynamic Therapy and its consequences to the photodynamic effect is not yet completely established, and therefore there is interest in studying the parameters involved for analyzing the best conditions for applying treatment. The wavelength is crucial to improve the therapeutic effect, since both the optical properties of the biological tissue as the PS depend on these parameters. For FS studied in this work (Photogem®) are most often used wavelengths in the red region, due to their larger penetration depth in biological tissue. Thus, the light source becomes a fundamental aspect, their choice depends on the specific application and is based on the tumor location, light dose to be delivered and FS chosen. Despite all the advantages presented by lasers, the fact of having an emission spectrum essentially monochrome makes only one possible transition possible for the absorption of FS is used. Therefore, more extensive light sources such as light emitting diodes (LED), could be better used in some cases the laser, with the additional advantage of a reduced cost. Therefore, the choice of the white LED comes from an emission spectrum that still wider LED colors defined by allowing greater use of the several absorption bands and with varying depths of operation, according to the wavelength... (Complete abstract click electronic access below)

Psicologia do trânsito e competência moral: uma intervenção junto a alunos de um curso de especialização

Pós-graduação em Educação - FFC

Dilema moral na Educação Infantil: generosidade ou justiça?

The aim of this study is to investigate the judgments about the virtue of generosity or justice by teachers in early childhood education and compare their judgments with the children’s judgments about generosity or justice. We interviewed 26 teachers and 90 children aged 4, 5 and 6 years at this level of education. The instrument used was a moral dilemma in which the protagonist of the story would have to choose between giving a prize to the child who drew the most beautiful picture (justice) or to the child who was sad (generosity). The results indicate that justice is the virtue most valued by teachers and that it is already valued by children and may be a need for them. And generosity is valued more by children than by teachers.

Projeto e análise de um sistema de ancoragem para um motor foguete a combustível líquido

This work aims the design and analysis of a thrust frame system for a liquid fuel rocket engine. The project was developed following the design requirements established by the Division of Space Propulsion of the Institute of Aeronautics and Space. The layout of the structure was developed with the aid of a software of 3D modeling and static and dynamic analysis were performed by using a finite element package. The results of the analyzes helped in defining the layout of the structure which met all design requirements. The safety factor and the mass achieved were comfortably low, which may be useful in the future because the liquid fuel rocket engine is still in development

Estudo e aplicação de diferentes métodos de resolução para problemas dinâmicos não-lineares em presença de atrito

The friction phenomena is present in mechanical systems with two surfaces that are in contact, which can cause serious damage to structures. Your understanding in many dynamic problems became the target of research due to its nonlinear behavior. It is necessary to know and thoroughly study each existing friction model found in the literature and nonlinear methods to define what will be the most appropriate to the problem in question. One of the most famous friction model is the Coulomb Friction, which is considered in the studied problems in the French research center Laboratoire de Mécanique des Structures et des Systèmes Couplés (LMSSC), where this search began. Regarding the resolution methods, the Harmonic Balance Method is generally used. To expand the knowledge about the friction models and the nonlinear methods, a study was carried out to identify and study potential methodologies that can be applied in the existing research lines in LMSSC and then obtain better final results. The identified friction models are divided into static and dynamic. Static models can be Classical Models, Karnopp Model and Armstrong Model. The dynamic models are Dahl Model, Bliman and Sorine Model and LuGre Model. Concerning about nonlinear methods, we study the Temporal Methods and Approximate Methods. The friction models analyzed with the help of Matlab software are verified from studies in the literature demonstrating the effectiveness of the developed programming

Análise das microdeformações geradas ao redor de implantes de hexágono externo sob a aplicação de cargas verticais em pilares microunit retos e angulados

Pós-graduação em Odontologia Restauradora - ICT

Avaliação in vitro das microdeformações em implantes curtos, com conexão protética cone morse e diferentes desenhos de roscas, convencionais e platôs

Pós-graduação em Odontologia Restauradora - ICT

Um jogo de dúvidas: Helena, de Machado de Assis e Le Roman d'un jeune homme pauvre, de Octave Feuillet

Pós-graduação em Letras - FCLAS

Afirmação do projeto ético-político do serviço social: a utilização das técnicas das manifestações artístico-culturais no debate sobre os movimentos sociais

Pós-graduação em Serviço Social - FCHS

Conhecimento e atitudes da área da saúde frente ao risco de contaminação por hepatites ao fazer as unhas

Pós-graduação em Saúde Coletiva - FMB

Avaliação preliminar da contaminação do aquífero Bauru em um município com vocação para avicultura

Pós-graduação em Engenharia Civil e Ambiental - FEB

Controle robusto de sistemas não lineares e chaveado de sistemas lineares usando realimentação derivativa

Pós-graduação em Engenharia Elétrica - FEIS

Saúde e estética: a medicalização da beleza

Este artigo discute os dados levantados em trabalho de campo realizado no Brasil e na Inglaterra, envolvendo a coleta de informações em material de imprensa, dados em arquivos, entrevistas e observação em clínicas estéticas (localizadas em São Paulo e Londres). O artigo toma como problemática central a discussão acerca da cirurgia plástica para fins estéticos como expressão da medicalização da sociedade e da difusão de princípios estruturadores da cultura de consumo. Como desdobramento, desenvolve-se em torno das perguntas: Que impactos a percepção de uma nova forma corporal gera na subjetividade? No caso das mulheres, a cirurgia plástica seria uma prática condicionada pelos ditames dos padrões histórica e culturalmente construídos, que associam a feminilidade a um padrão de beleza socialmente estabelecido, ou poderia ser entendida como uma fonte de poder do indivíduo? Seria, então, um exercício de agência?

Os sentidos da cirurgia estética: utilidade, futilidade, agência e/ou incorporação

This article aims to reflect on the growth of the practice of plastic surgery for cosmetic purposes and its relationship with the contemporary consumer culture. In other words, we discuss how this practice expresses the values and principles for consumer culture and configures itself differently in different contextsin, as the cities of Sao Paulo and London, where he held field work involving the collection of information in press materials, data files, interviews and observation in clinical aes‐ thetic.

Poesia visual brasileira no contexto de crise

In this project, we tried to analyze, in a very short way, the relations between Brazilian Visual Poetry and a phenomenon in modern literature known as crises of the verse. In sequence, we tried to situate this poetry in a provisory category which the current criticism sees it as the contemporary Brazilian poetry. For sure, the Concretism and its esthetics deployments assured space for the visually in poetry.