Made available in DSpace on 2016-07-27T14:21:12Z (GMT). No. of bitstreams: 1 Thais Schwetter.pdf: 242497 bytes, checksum: 70f76af7eb4abc57a2c2029928a7d88c (MD5) Previous issue date: 2006-10-26 / The presented project has the objective to identify the social representations of affectionate relationships between teenagers. Observing some elements of the contemporary society, of which the act of consuming, the high-technology and the power of the media are its main characteristics, the teenagers make their performance of a passionate attachment, a romantic relation without any compromise or even about a marriage. The empirical research through the interview of twenty-six teenagers. Their ages varied between fifteen and seventeen years old, of both type of sex and they were attending school according to the Brazilian system of education in private schools. The analysis of the data was gotten by the reading of the same ones through the program of analysis about the literal data ALCESTE (Analyse Lexicale par Context d um Ensemble de Segments de Text), comprehending two levels of analysis: identification about the common side of the social representation and about the position of the participants facing the common side of the social representation. The results evidenced significant differences about the perceptions of the represented object between participants related to the masculine and feminine sex and still more between younger and older teenagers. For the girls the act of ficar , comes out as a nonsense practice but they agree of being an important way to start a love relationship which may occur with or without sexual relations, not being accepted during the ficar . The boys search for ficar instead of dating, looking for ephemera relations since, according to them, they are not interested in serious compromises being a love affair postponed to the future. Both ficar and a dating may preferable include sexual relations. As for the marriage, boys and girls create their representations in such a similar thought as a practice for the future, after achieving their academic and professional target. / Este trabalho procura identificar as representações sociais das relações amorosas em adolescentes. A partir da constituição de processos identitários contextualizados no mundo contemporâneo, cuja influência delineia-se sob o prisma do consumismo, da tecnologia e da força midiática, os adolescentes constroem suas representações do namoro, da variante deste o ficar e do casamento. A pesquisa empírica procedeu-se através de entrevistas semidiretivas individuais em um grupo de 26 adolescentes, situados na faixa etária entre quinze e dezessete anos, de ambos os sexos, que cursam o ensino médio em escola da rede particular de ensino. A análise dos dados foi obtida através da leitura dos mesmos pelo programa de análise de dados textuais ALCESTE (Analyse Lexicale par Context d um Ensemble de Segments de Texte), incluindo dois níveis de análise: identificação do campo comum das representações sociais e da posição dos participantes face ao campo comum das representações sociais. Os resultados evidenciaram significativas diferenças nas percepções do objeto representado entre os participantes dos sexos masculino e feminino e ainda no que concernem às representações elaboradas pelos adolescentes mais jovens e mais velhos. Para as meninas o ficar aparece como uma prática evasiva e sem sentido, mas concordam que é um importante caminho para iniciar o namoro, que pode ocorrer com ou sem relações sexuais, o que não é admitido no ficar. Os meninos buscam o ficar em detrimento ao namoro, almejam uma relação passageira, fortuita, pois, no discurso deles, não se interessam por compromissos sérios, ficando o namoro, adiado para o futuro. Tanto o ficar como o namoro, para os meninos, devem ocorrer preferencialmente com relações sexuais. Quanto ao casamento, meninos e meninas tecem suas representações de maneira muito semelhante, como uma prática que desejam para o futuro, após terem atingido os objetivos acadêmicos e profissionais.

Neste trabalho, apresenta-se a formulação do método dos elementos de contorno dual (MECD) aplicada a análise de problemas da Mecânica da Fratura Elástica Linear (MFEL). O objetivo da pesquisa consiste em avaliar o fator de intensidade de tensão (FIT) de sólidos bidimensionais fraturados, por meio de três técnicas distintas, quais são: a técnica da correlação dos deslocamentos, a técnica com base no estado de tensão na extremidade da fratura e a técnica da integral. As análises são realizadas utilizando o código computacional desenvolvido durante a pesquisa, que incorpora as formulações diretas em deslocamento e em força de superfície, do método dos elementos de contorno (MEC), com destaque para a utilização dos elementos de contorno curvos de ordem qualquer. No MECD as equações integrais singulares do tipo O(\'R POT.-1\') e O(\'R POT.-2\') são avaliadas satisfatoriamente com o Método da Subtração de Singularidade (MSS). Dessas integrais resultam termos analíticos, os quais são avaliados por meio do Valor Principal de Cauchy (VPC) e da Parte Finita de Hadamard (PFH). Compara-se o código desenvolvido com as soluções analíticas encontradas na literatura inclusive na análise de sólidos com fraturas predefinidas e para a avaliação do FIT, que produziram bons resultados. / This work presents the dual boundary element formulation applied to linear crack problem. The goal of this research is the evaluation of stress intensity factor for two-dimensional crack problem using three different techniques, which are: the technique of correlation of displacements, the technique based on the state of tension at the crack tip and J integral. The analysis is performed using the computational code developed during the research, which incorporates the direct formulations related to displacement and traction boundary element equation. A greater emphasis is given to the use of curved boundary element of any order. In the dual boundary element method the singular integral equations with singular others O(\'R POT.-1\') and O(\'R POT.-2\') are assessed satisfactorily with the application of the singularity subtraction method. The results of these singular integrals are evaluated by the Cauchy Principal Value and the Hadamard Finite Part. The code developed is compared with the analytical solutions found in the literature including the analysis of solids with fractures default and evaluation of stress intensity factor, which produced good results.

For a wide range of people with limited upper- and lower-body mobility, interaction with robots remains a challenging problem. Due to various health conditions, they are often unable to use standard joystick interface, most of wheelchairs are equipped with. To accommodate this audience, a number of alternative human-machine interfaces have been designed, such as single switch, sip-and-puff, brain-computer interfaces. They are known as low throughput interfaces referring to the amount of information that an operator can pass into the machine. Using them to control a wheelchair poses a number of challenges. This thesis makes several contributions towards the design of robotic wheelchairs controlled via low throughput human-machine interfaces: (1) To improve wheelchair motion control, an adaptive controller with online parameter estimation is developed for a differentially driven wheelchair. (2) Steering control scheme is designed that provides a unified framework integrating different types of low throughput human-machine interfaces with an obstacle avoidance mechanism. (3) A novel approach to the design of control systems with low throughput human-machine interfaces has been proposed. Based on the approach, position control scheme for a holonomic robot that aims to probabilistically minimize time to destination is developed and tested in simulation. The scheme is adopted for a real differentially driven wheelchair. In contrast to other methods, the proposed scheme allows to use prior information about the user habits, but does not restrict navigation to a set of pre-defined points, and parallelizes the inference and motion reducing the navigation time. (4) To enable the real time operation of the position control, a high-performance algorithm for single-source any-angle path planning on a grid has been developed. By abandoning the graph model and introducing discrete geometric primitives to represent the propagating wave front, we were able to design a planning algorithm that uses only integer addition and bit shifting. Experiments revealed a significant performance advantage. Several modifications, including optimal and multithreaded implementations, are also presented.

Universidade Federal do Cearà / Neste estudo, pretende-se determinar um modelo de previsÃo mensal de curto prazo para a receita de ISSQN de Teresina. Para evidenciar este propÃsito servirÃo de suporte matemÃtico os modelos VAR e Box-Jenkins, a partir de sÃries histÃricas concernentes ao perÃodo de janeiro de 2002 a dezembro de 2006. ApÃs a estimaÃÃo dos modelos, propÃe-se um diagnÃstico para mensurar a capacidade inicialmente preditiva. Dentre os modelos manipulados temos o SARIMA (12,1,1)(0,0,12) o qual antecipadamente demonstrou ser mais robusto em relaÃÃo ao modelo VAR. Oportunamente à discussÃo de outras nuances internas ou à margem do trabalho, conclui-se que, o modelo com sÃries temporais, em funÃÃo de sua capacidade preditiva, pode se transformar em um instrumental consistente com vistas ao incremento da arrecadaÃÃo do ISSQN da Prefeitura de Teresina. / In this study, It is intended to determine a short-run monthly forecasting model for the ISSQN of Teresina city. In order for this purpose to be clear, the models VAR and Box-Jenkins will be of mathematical support, from historical series concerning the period of January 2002 to December 2006. After the estimation of the models, it is proposed a diagnosis to measure the initially predictive capacity. Among the models manipulated, we have SARIMA (12,1,1)(0,0,12), which has resulted most robust in advance concerning the VAR model. Propitiously to other internal or marginal nuances to the study, it is concluded, preliminarily, that the time series model due to its predictive capacity can become a consistent instrument targeting at the augment of the ISSQN collecting of Teresina City Administration.

Loss is a fundamental part of the human experience, from the loss of security and innocence that comes with the necessary separation of child from parent to the ultimate loss of life. Along the way, there are the losses of jobs, of incomes, of homes; the losses of friendships, of family members, of lovers; the losses of direction, of control, of hope. As cognitive and caring beings, humans struggle to cope with these losses, to greater and lesser degrees of success. This is the theme at the heart of this thesis. Fire Ants is composed of ten short stories, fictive works, which differ in specific subject matter, yet deal unilaterally with issues of loss. Like the venomous creatures that threaten to eat B. D. Packard alive in the title story, life eats away at a number of characters in the collection who are deficient. The narrators in "Aftermath" and "Hues," for example, suffer psychological -- if not physical -- deaths. But not all of the characters lack coping mechanisms, unhealthy as they may sometimes be. As the stories unfold, some characters begin to gain small degrees of perspective and understanding, to learn that while life is full of loss, it is not always entirely bleak. As demonstrated in "Cross Creek," good exists, though it is not always where one might expect it. And life can be full despite loss, as depicted in "Stitches."

Cuatro estudios meta-analíticos evalúan la eficacia de los programas de apoyo a la lactancia materna, en mujeres con intención de lactar, sobre los resultados en duración de cualquier tipo de lactancia materna (clm) y lactancia materna exclusiva (lme), a los tres y seis meses. Con respecto a la lme, las mujeres que siguen un programa de apoyo (GE), abandonan la lactancia un 18% (dr3meses=0.182) menos a los tres meses y un 12% (dr6meses:0.120) menos a los seis meses, en comparación con las madres que no se adscriben a ningún programa de apoyo (GC). Referente a clm, las mujeres del GE, interrumpen la lactancia un 7% menos a los tres y seis meses (dr3meses=0.076 y dr6meses:0.072), en comparación con las madres del GC. Finalmente, en los estudios de mayor cobertura temporal, se analiza la influencia de variables moderadoras y su efecto sobre la duración de clm y lme.

Gilles Deleuze'as kuria kinui būdingus konceptus, kurie pagilina kino problematiką, suteikdami jai filosofinį pagrindą. Savo vaizdinio-judėjimo ir vaizdinio-laiko knygose – Kinas 1 ir Kinas 2 – Deleuze'as konceptus taiko klasikiniui ir moderniajam kinui. Kino filmų jis nepasirenka kaip savo konceptų iliustracijų, o juos vertina kaip tuos pačius konceptus, išreikštus vaizdine forma. Pagrindinis šio magistrinio darbo tikslas – aptarti bet-kurios-erdvės, kuri priklauso vaizdinio-judėjimo kinui ir išreiškia netiesioginį laiką, ir vaizdo-kristalo, išreikšiantį sudėtingą tiesioginio laiko sistemą, konceptus ir tirti jų apraiškas kino mene. / Gilles Deleuze creates concepts characteristic of cinema which deepen the problematics of cinema providing a philosophical basis to it. In his books of movement-image and time-image – Cinema 1 and Cinema 2 – Deleuze applies concepts to classical and modern cinema. He doesn‘t choose movies as illustrations of his concepts but values them as the same concepts expressed in visual form. The main aim of this master thesis – to discuss the concepts of any-space-whatever, which belongs to the cinema of movement-image and expresses indirect time, as well as of crystal-image, which expresses a complex system of direct time, and to investigate their manifestations in the art of cinema.

This study used descriptive phenomenology to address the research question: What is the experience of parents who have a child with any disability in selecting a school for their child? Nine parents of a child with any disability from the Greater Vancouver area participated in this study. Through one-on-one in-depth interviews, the parents shared their experiences in selecting a school for their child. Using Colaizzi's descriptive phenomenological method for analysis, six broad themes were revealed that described the parents' experience of finding a school: a) the school itself, b) the child's needs, c) the parent's own experience, d) the family's involvement in the decision, e) non-school supports; and f) availability or lack of choice. Findings were discussed in relation to relevant literature, implications for both parents and school systems were addressed, and further research options were offered. / Graduate

The work deals with the analysis of truth and lie in the J. Becker´s piece of work. The theoretical part, which confronts the factual events with the authenticity of the piece of work, anticipates this analysis. The literary part stands for another inevitable condition for studying the truth and lie. The ``practical part{\crq}q or the reading is thoroughly dedicated to the study of the piece {--}both from the point of view of persons living in the ghetto in Warshaw and from the point of view of the main character, Jakob Heym, which leads to the analysis of truth and lie and to meeting the requirements for my graduation thesis. All my work is concluded by a dialogue with a priest who comes from the Silesian-Polish borderline. Because of the fact that he is also engaged into this problematic I am interested in his opinion about truth and lie in ghetto {--} not only as a Pole, but as a priest as well.

Neste trabalho, apresenta-se a formulação do método dos elementos de contorno dual (MECD) aplicada a análise de problemas da Mecânica da Fratura Elástica Linear (MFEL). O objetivo da pesquisa consiste em avaliar o fator de intensidade de tensão (FIT) de sólidos bidimensionais fraturados, por meio de três técnicas distintas, quais são: a técnica da correlação dos deslocamentos, a técnica com base no estado de tensão na extremidade da fratura e a técnica da integral. As análises são realizadas utilizando o código computacional desenvolvido durante a pesquisa, que incorpora as formulações diretas em deslocamento e em força de superfície, do método dos elementos de contorno (MEC), com destaque para a utilização dos elementos de contorno curvos de ordem qualquer. No MECD as equações integrais singulares do tipo O(\'R POT.-1\') e O(\'R POT.-2\') são avaliadas satisfatoriamente com o Método da Subtração de Singularidade (MSS). Dessas integrais resultam termos analíticos, os quais são avaliados por meio do Valor Principal de Cauchy (VPC) e da Parte Finita de Hadamard (PFH). Compara-se o código desenvolvido com as soluções analíticas encontradas na literatura inclusive na análise de sólidos com fraturas predefinidas e para a avaliação do FIT, que produziram bons resultados. / This work presents the dual boundary element formulation applied to linear crack problem. The goal of this research is the evaluation of stress intensity factor for two-dimensional crack problem using three different techniques, which are: the technique of correlation of displacements, the technique based on the state of tension at the crack tip and J integral. The analysis is performed using the computational code developed during the research, which incorporates the direct formulations related to displacement and traction boundary element equation. A greater emphasis is given to the use of curved boundary element of any order. In the dual boundary element method the singular integral equations with singular others O(\'R POT.-1\') and O(\'R POT.-2\') are assessed satisfactorily with the application of the singularity subtraction method. The results of these singular integrals are evaluated by the Cauchy Principal Value and the Hadamard Finite Part. The code developed is compared with the analytical solutions found in the literature including the analysis of solids with fractures default and evaluation of stress intensity factor, which produced good results.