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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

Avalia??o da lordose cervical e da postura da cabe?a em pacientes classe III esquel?tica submetidos ? cirurgia ortogn?tica

Andriola, Fernando de Oliveira 24 January 2018 (has links)
Submitted by PPG Odontologia (odontologia-pg@pucrs.br) on 2018-03-19T17:16:06Z No. of bitstreams: 1 FERNANDO_DE_OLIVEIRA_ANDRIOLA_DIS.pdf: 1889802 bytes, checksum: 4fbb8e2e462022c1c29eeda8628a848b (MD5) / Approved for entry into archive by Tatiana Lopes (tatiana.lopes@pucrs.br) on 2018-04-03T16:47:33Z (GMT) No. of bitstreams: 1 FERNANDO_DE_OLIVEIRA_ANDRIOLA_DIS.pdf: 1889802 bytes, checksum: 4fbb8e2e462022c1c29eeda8628a848b (MD5) / Made available in DSpace on 2018-04-03T16:52:03Z (GMT). No. of bitstreams: 1 FERNANDO_DE_OLIVEIRA_ANDRIOLA_DIS.pdf: 1889802 bytes, checksum: 4fbb8e2e462022c1c29eeda8628a848b (MD5) Previous issue date: 2018-01-24 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Conselho Nacional de Pesquisa e Desenvolvimento Cient?fico e Tecnol?gico - CNPq / The purpose of this study was to evaluate cervical lordosis and head posture changes using lateral cephalographs after bimaxillary orthognathic surgery for mandibular prognatism by null hypothesis. Twenty-five patients with skeletal class III dentofacial deformities (10 men, 15 women; mean age, 29.28 ? 8.22 years; range 18-48 years) were included in this prospective clinical study. Lateral cephalographs were taken in natural head position (NHP) 2 weeks before and 6 months after orthognathic surgery. The reproducibility of the radiographer?s technique of taking radiographs in NHP was investigated using a photographic method and found to be acceptable. All measurements for cervical lordosis (CV1/CV2; CV3/CV7; CV1/CV7), head posture (NSL/OPT; NSL/VER) and other cephalometric values (NSL/Go-Gn; NSL/Ocl; Overjet) were repeated three times by the same investigator at 2- week intervals and the average values of the three measurements were calculated to use in statistical analysis. Intraclass correlation coefficients (ICC) ranged between 0.996 to 1.000, demonstrating a high reliability of the measures. Statistically significant differences were found for CV3/CV7 (P=0.006) and CV1/CV7 (P=0.005) and no significant differences were identified in head posture for both cranio-cervical and cranio-vertical angles. The null hypothesis was rejected. Orthognathic surgery resulted in significant cervical lordosis extension, and a tendency for head extension could also be observed. / O objetivo deste estudo foi avaliar, por hip?tese nula, a lordose cervical e as altera??es da postura da cabe?a usando telerradiografias de perfil ap?s cirurgia ortogn?tica bimaxilar para corre??o de prognatismo mandibular. Vinte e cinco pacientes com deformidades dentofaciais esquel?ticas classe III (10 homens, 15 mulheres, idade m?dia entre 29,28 ? 8,22 anos, intervalo de 18-48 anos) foram inclu?dos neste estudo cl?nico prospectivo. As radiografias laterais dos pacientes foram obtidas na posi??o natural de cabe?a (PNC) 2 semanas antes e 6 meses ap?s a cirurgia ortogn?tica. A reprodutibilidade da t?cnica do radiologista para realizar as tomadas radiogr?ficas na PNC foi investigada usando um m?todo fotogr?fico e considerada aceit?vel. As medidas para lordose cervical (CV1/CV2; CV3/CV7; CV1/CV7), postura da cabe?a (NSL/OPT; NSL/VER) e outros valores cefalom?tricos (NSL/Go-Gn; NSL/Ocl; Overjet) foram repetidas tr?s vezes pelo mesmo investigador em intervalos de 2 semanas e os valores m?dios das tr?s medidas foram calculados para serem usados na an?lise estat?stica. Os coeficientes de correla??o intraclasse (ICC) variaram entre 0,996 e 1,000, demonstrando uma alta confiabilidade das medidas. Foram encontradas diferen?as estatisticamente significativas para CV3/CV7 (P=0,006) e CV1/CV7 (P=0,005). N?o foram identificadas diferen?as significativas na postura da cabe?a para os ?ngulos cr?nio-cervical e cr?niovertical. A hip?tese nula foi rejeitada. A cirurgia ortogn?tica resultou em aumento significativo da lordose cervical (extens?o) e tamb?m em uma tend?ncia ? extens?o da postura da cabe?a.
82

Ensinando psicopatologia: a escrita como espa?o de autoria e apropria??o criativa do objeto psicopatol?gico / Writing as an author s space and creative appropriation of the psychopathologic object

Fernandes, Marly Aparecida 05 September 2003 (has links)
Made available in DSpace on 2016-04-04T18:29:53Z (GMT). No. of bitstreams: 1 Marly Aparecida Fernandes 1.pdf: 560944 bytes, checksum: b39b1a9f932ac8780bbed37d33d92b8b (MD5) Previous issue date: 2003-09-05 / Both aims of this study were achieved with the help of graduation students on Psycology Graduation Course, who had attended to psychopathology classes, which were: to identify and to discuss their social culture and psychic representations of the psychopathologic object related to thinking capacity; to investigate the perception of psychopathologic object in the construction of the knowledge ou psychopathology. As a psychopathogy teacher on psychology, the analysis of the texts written by the students had provided the acess to this experiment. This study, however, had chracterized as a documented qualitative research with the help of a participant researcher.The data were obtained through these texts which described about a theme on psychopathology, based on both, a direct and indirect experience. From a scientific frame for the preparation of the paper, the student developed the report in a free choice process of the theme and its apex, experience, approach and references. It was analysed the reports of three diferent groups of students who were attending the classes on psychopathology subject during the previous years of 1999, 2000 and 2002. The descreptive analysis of the texts set and the content analysis of seven (7) of them, selected at random, which were performed having as a conceptual basement the psycoanalitic constructs.The results had shown that the psychic and social culture representations of the student, before the psychopatology object, had influenced her thinking capacity triggering a strong emotional experience, where the writing considered as a transitional space and as an author s space and a creative appropriation had facilitated the learning teaching process and it had revealed that the perception of the psychopatolic object had occurred in two levels: one quite superficial, characterized by a defensive and not associated shape, which had given advantage once to a cognitive sphere and afterwards an emotional sphere and another quite deeper, chracterized by an integrated way of the construction of the knowledge. It was considered as a creative appropriation, then, this second level of perception which had posed the student as an author of these sense searching. / Com graduandos do Curso de Forma??o de Psic?logos que cursam a disciplina psicopatologia o objetivo desse estudo foi identificar e discutir as suas representa??es ps?quicas e s?cio-culturais do objeto psicopatol?gico e a vincula??o destas com a capacidade de pensar e investigar a apreens?o do objeto psicopatol?gico na constru??o do conhecimento em psicopatologia. O acesso a essa experi?ncia foi a partir do lugar de docente analisando textos escritos pelos alunos na disciplina psicopatologia no curso de psicologia. Este estudo portanto, caracteriza-se como uma pesquisa documental com pesquisador participante. Os dados foram obtidos atrav?s de textos escritos pelos alunos sobre um tema de psicopatologia, baseado em uma experi?ncia direta ou indireta.A partir de um enquadre cient?fico para elabora??o de artigo, o aluno desenvolveu o texto num processo de livre escolha do tema, pessoa focalizada, experi?ncia, , abordagem e refer?ncias. Foram usados os textos produzidos por um grupo de alunos de tr?s classes diferentes que cursaram a disciplina no ano de 1999, 2000 e 2002. Foram realizadas uma an?lise descritiva do conjunto de textos e an?lise de conte?do de sete textos selecionados aleatoriamente..As an?lises realizadas seguiram os pressupostos da pesquisa qualitativa , tendo como base conceitual os constructos psicanal?ticos. Os resultados apontam que as representa??es ps?quicas e s?cio-culturais do aluno diante do objeto psicopatol?gico influenciam a sua capacidade de pensar desencadeando uma experi?ncia emocional intensa onde a escrita, considerada como um espa?o transicional, favoreceu o processo de ensino aprendizagem e revelou que a apreens?o do objeto psicopatol?gico ocorreu em dois n?veis: um n?vel mais superficial caracterizado por uma forma defensiva ou dissociada que privilegiou ou a esfera cognitiva ou a emocional e um n?vel mais profundo caracterizado por uma forma integrada de constru??o do conhecimento que aliou a experi?ncia emocional e a esfera cognitiva como forma de aproxima??o, apreens?o e comunica??o do objeto psicopatol?gico. Considerou-se como apropria??o criativa esse segundo n?vel de apreens?o.
83

Aplica??o do m?todo AHP na redu??o de multas em empresas de telecomunica??es / Application of method AHP in reduction fine in companies of telecommunications

Pereira, Rodrigo de Ara?jo 21 February 2011 (has links)
Made available in DSpace on 2016-04-04T18:31:30Z (GMT). No. of bitstreams: 1 Rodrigo de Araujo Pereira.pdf: 1366550 bytes, checksum: a0d4e8d1bb422646cca0f06e4eb9d7d9 (MD5) Previous issue date: 2011-02-21 / This research investigates the highly competitive market, increased demands from customers and the reduction of profit margins as factors that contextualize the current market scenario of the companies of mobile telephony sector in Brazil. To that end, uses of research at the Foundation for the Protection and Consumer Protection (PROCON) and the National Telecommunications Agency (ANATEL) to indicate that the cell phone companies are leaders in claims and fines that exceed the total value of $ 3 million. The research includes an analysis of these problems, focusing on the more damaging to the competitiveness of the market, i.e., expands on criteria directly related to the conservation and degeneration of the image of these companies, and analyzes what the key issues and motivators of complaints at the consumer protection agencies. It accepts the premise of a hypothetical solution, reducing the levels of fines in the mobile industry, basing this view on the method Analytic Hierarchy Process (AHP) The analysis results are ordered under the following criteria: "unauthorized charges," "Failure to comply", "quality service", "block", "delayed delivery" and "misleading propaganda". Under the sensitivity analysis, also show periodic variations in the relative importance of these criteria. Therefore, the appropriate amounts identified for each of the problems, the organizations mobile analyze each of these problems, identifying their causes. Therefore, this analysis of the causes wil viabilisate the development of operational plans aimed at the most efficient and effective the current juncture. / A presente pesquisa investiga a forte competitividade de mercado, o aumento das exig?ncias por parte dos clientes e a redu??o das margens de lucro como fatores que contextualizam o cen?rio de mercado atual das empresas do setor de telefonia m?vel no Brasil. Para tanto, lan?a m?o de pesquisas da Funda??o de Prote??o e Defesa do Consumidor (PROCON) e da Ag?ncia Nacional de Telecomunica??es (ANATEL), para apontar que as empresas de telefonia celular s?o l?deres em reclama??es e somam multas que ultrapassam o valor de R$ 3 milh?es. A pesquisa abarca uma an?lise destes problemas, enfocando os de maior prejudicialidade ? competitividade de mercado, ou seja, aprofunda-se em crit?rios diretamente ligados ? conserva??o e degenera??o da imagem destas empresas, bem como analisa quais os principais problemas e motivadores de reclama??es junto aos ?rg?os de prote??o ao consumidor. Admite como premissa hipot?tica de solu??o, a redu??o dos n?veis de multas no setor de telefonia m?vel, embasando esta tese no m?todo Analytic Hierarchy Process (AHP). Os resultados da an?lise est?o ordenados sob os seguintes crit?rios: cobran?as indevidas , falha no atendimento , qualidade do servi?o , bloqueio , atraso na entrega e propaganda enganosa . Sob a an?lise de sensibilidade, tamb?m se apontam varia??es peri?dicas da import?ncia relativa entre tais crit?rios. Logo, identificadas as devidas import?ncias relativas a cada um dos problemas, cabe ?s organiza??es de telefonia m?vel analisar cada um destes problemas, identificando suas respectivas causas. Por conseguinte, tal an?lise das causas viabilisar? o desenvolvimento de planos operacionais que visam solu??es mais eficazes e efetivas da atual conjuntura.
84

O Todo e as Partes: Subsídios para a leitura do ensaio Amor Evolucionário de Charles Sanders Peirce

Antônio, Basílio João Sá Ramalho 10 October 2006 (has links)
Made available in DSpace on 2016-04-27T17:27:16Z (GMT). No. of bitstreams: 1 FIL - Basilio J A R Antonio.pdf: 767367 bytes, checksum: 9a9f898e3f84abcbc6f3d088e909fa0e (MD5) Previous issue date: 2006-10-10 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / In this dissertation, we have sought to provide a Portuguese version for Peirce s 1893 essay Evolutionary Love , as well as to offer theoretical subsidies for its reading. With this aim, we developed, in the first chapter, the analysis of the modus operandi of the law of mind, for Peirce has made it the great law through which all regularities of the universe were formed. Thus, we went through the concept of continuity, which is the condition of possibility for understanding the dynamics of the mental law of association of ideas. The association of ideas, which structures the formation of all mental regularities, is not entirely subject to the strict rules of necessity, but shelters also new elements. They are the basis for diversification and for providing the law of mind with an evolutionary trend. In the second and last chapter, we went through the three evolutionary modes tychasm, anancasm and agapasm which are characterized by the way chance and necessity are intertwined. Peirce rejects as theoretically inadequate both the theories that make chance the only positive agent of change (tychasm), as well as that attribute change to some necessary principle (anancasm). He makes agapic evolution, which sets love as the principle of attraction and harmonious inclusion of divergent strains in the unity of the cosmic continuum, in a way very similar in nature to that of the habit-taking process, to be the evolutionary principle of greater generality and intelligibility / Esta dissertação propõe-se a prover uma versão em português para o ensaio Amor Evolucionário de 1893 de Peirce, bem como a oferecer subsídios teóricos para a sua leitura. Com este intuito, empreendemos, no primeiro capítulo, a análise do modus operandi da lei da mente, já que Peirce faz dela a grande lei de formação de todas as regularidades do universo. Para tanto, debruçamo-nos sobre o conceito de continuidade, que é a condição de possibilidade para compreender a dinâmica da lei mental da associação de idéias. A associação de idéias, que estrutura a formação de todas as regularidades mentais, não está inteiramente sujeita às regras estritas da necessidade, mas acolhe também o novo, o que introduz as bases para a diversificação e, desta forma, dota a lei da mente de um vetor evolutivo. No segundo e último capítulo, percorremos os três modelos de evolução descritos por Peirce (ticasma, anancasma e agapasma), que se caracterizam pela forma como neles se articulam o acaso e a necessidade. Peirce recusa, como teoricamente insuficientes, tanto as teorias que atribuem ao acaso o papel de único agente positivo da mudança (ticasma), quanto as que o depositam em algum princípio de necessidade (anancasma), e faz da evolução agápica, que afirma o amor como princípio de atração e inclusão harmoniosa das forças divergentes na unidade do continuum cósmico, num processo da natureza similar ao modus operandi da formação de hábitos, o princípio evolutivo de maior generalidade e inteligibilidade
85

O crime como m?todo: um estudo da literatura policial na obra de Mayrant Gallo

Nunes, Lidiane Carvalho 28 August 2014 (has links)
Submitted by Verena Bastos (verena@uefs.br) on 2015-07-21T00:40:51Z No. of bitstreams: 1 Disserta??o.pdf: 930316 bytes, checksum: c7081dbe78b85faae39c3ac523607f58 (MD5) / Submitted by Verena Bastos (verena@uefs.br) on 2015-07-21T00:40:51Z No. of bitstreams: 1 Disserta??o.pdf: 930316 bytes, checksum: c7081dbe78b85faae39c3ac523607f58 (MD5) / Made available in DSpace on 2015-07-21T00:40:51Z (GMT). No. of bitstreams: 1 Disserta??o.pdf: 930316 bytes, checksum: c7081dbe78b85faae39c3ac523607f58 (MD5) Previous issue date: 2014-08-28 / Made available in DSpace on 2015-07-21T00:40:51Z (GMT). No. of bitstreams: 1 Disserta??o.pdf: 930316 bytes, checksum: c7081dbe78b85faae39c3ac523607f58 (MD5) Previous issue date: 2014-08-28 / In this dissertation, we analyze the short crime stories by Mayrant Gallo ? one of the most productive writers from Bahia presently ? trying to demonstrate the theme of crime as a metaphor of the world we live in, which is often violent and corrupt. In the work of the author in question ? as well as in the work of many others crime fiction writers ?, we show clearly that the representation of the criminal universe is a method or a means of making the reader reflect on things more widely than the simple ?who killed? questioning. We aim to demystify the ideia very widespread among literary critics that crime fiction is a ?minor genre?. In this regard, we discuss the characteristics, similarities and differences between its types: detective fiction, noir and ?action? fiction. This last type, although practiced by writers like Edgar Allan Poe e Jorge Luis Borges, for example, had its terminology coined only in 2005, by Mayrant Gallo, who is also a teacher and a crime fiction theorist, a genre which has been insufficiently researched in the academy. / Neste trabalho, analisamos os contos policiais do escritor Mayrant Gallo ? um dos mais fecundos autores da Bahia na contemporaneidade ? tentando demonstrar a tem?tica do crime como uma met?fora, uma meton?mia do mundo em que vivemos, muitas vezes violento e corrupto. Na obra do autor em foco ? assim como na de tantos outros escritores de hist?rias policiais ? evidenciamos a representa??o do universo criminal como um m?todo, um meio de levar o leitor a reflex?es bem mais amplas do que ao mero questionamento do ?quem matou?. Objetivamos desmitificar a ideia, que ainda perdura entre os cr?ticos liter?rios, de que a narrativa policial ? um ?g?nero menor?. Para tanto, discutimos as caracter?sticas, semelhan?as e diferen?as dos tipos da modalidade estudada: de enigma, noir e ?de a??o?. Este ?ltimo, apesar de ter sido praticado por escritores como Edgar Allan Poe e Jorge Luis Borges, por exemplo, teve a sua terminologia cunhada apenas em 2005, por Mayrant Gallo, que, al?m de escritor, ? professor e te?rico da literatura policial, pouco divulgada no ?mbito universit?rio.
86

Estudo comparativo da dissipa??o de for?as e efici?ncia entre o aparelho de Hyrax e o aparelho de Battistetti atrav?s de an?lise por elementos finitos

Tomazi, Fl?vio Henrique Silveira 20 January 2016 (has links)
Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2016-06-03T14:20:06Z No. of bitstreams: 1 DIS_FLAVIO_HENRIQUE_SILVEIRA_TOMAZI_COMPLETO.pdf: 1105956 bytes, checksum: 166a99c8e2c91a1e101b742dc1d77690 (MD5) / Made available in DSpace on 2016-06-03T14:20:06Z (GMT). No. of bitstreams: 1 DIS_FLAVIO_HENRIQUE_SILVEIRA_TOMAZI_COMPLETO.pdf: 1105956 bytes, checksum: 166a99c8e2c91a1e101b742dc1d77690 (MD5) Previous issue date: 2016-01-20 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Surgical assisted rapid maxillary expansion (SARME) represents an important topic in Oral and Maxillofacial Surgery. This surgical method is described for transverse maxillary corrections in patients with completed bone formation, or failure obtained with the non-surgical method of disjunction of the maxilla. There are several techniques and devices associated with SARME, the most famous are the Hyrax and Hass disjunctor, which are tooth-borne and tooth-muco-borne respectively. Bone-borne devices are also described in the literature and have the advantage of direct transmission of the forces to the maxilla and not to the teeth. Its main disadvantage is the cost that makes it impossible to most of the treatments. The device developed by Battistetti et al. (2010) translates into a custom bone-borne disjunctor, made from a lathe and two steel plates fused by a silver solder and fixed to the bone by two screws on each side. It has all the advantages of a conventional bone-borne device with much lower cost. The aim of this study is to evaluate the transmission of forces and efficiency of Battistetti device and make a comparison with the Hyrax disjunctor, through a study using finite elements (FE). The results demonstrate that the custom device developed by Battistetti transmits the force much more efficiently compared to Hyrax, and there is no dental commitment. It is also observed a bigger bone displacement using bone-borne device in addition to a smaller disjunctor fatigue. / A expans?o r?pida de maxila assistida cirurgicamente (ERMAC) representa um tema de grande import?ncia dentro da Cirurgia e Traumatologia Bucomaxilofacial. Essa modalidade cir?rgica ? descrita para corre??es transversas da maxila em pacientes com forma??o ?ssea finalizada, ou que obtiveram insucesso com a modalidade de disjun??o da maxila. Existem v?rias t?cnicas e dispositivos associados ? ERMCA, sendo os mais conhecidos o disjuntor de Hyrax e de Hass, que s?o dentossuportados e dento-mucossuportados respectivamente. Dispositivos osseossuportados tamb?m s?o descritos pela literatura e apresentam como vantagem a transmiss?o direta de for?as ? maxila e n?o aos dentes. Sua principal desvantagem ? o custo, que acaba inviabilizando a maior parte dos tratamentos. O dispositivo preconizado por Battistetti et al. (2010) traduz-se por um disjuntor osseossuportado personalizado, confeccionado a partir de um torno central e placas de a?o unidos atrav?s de uma solda de prata, fixado no osso por 2 parafusos de cada lado. Ele apresenta todas as vantagens de um dispositivo osseossuportado convencional, com um custo muito reduzido. O presente trabalho tem como objetivo avaliar a transmiss?o de for?as e efici?ncia do aparelho de Battistetti e fazer uma compara??o com o aparelho amplamente usado de Hyrax, atrav?s de um estudo por elementos finitos (FE). Os resultados demonstram que o aparelho personalizado de Battistetti transmite as for?a nele aplicadas com muito mais efici?ncia em rela??o ao aparelho de Hyrax e n?o h? comprometimento dental. Observa-se tamb?m um deslocamento ?sseo maior usando o dispositivo osseossuportado, al?m de uma menor fadiga do aparelho.
87

Aplicabilidade do Rorshach na avalia??o psicol?gica do autismo

Oliveira, Maria Helena de 27 August 2010 (has links)
Made available in DSpace on 2014-12-17T15:38:49Z (GMT). No. of bitstreams: 1 MariaHOD_DISSERT.pdf: 873654 bytes, checksum: cf254e02723c86333cb5282f97151990 (MD5) Previous issue date: 2010-08-27 / This study investigates the applicability of the Rorschach Method for evaluating the personality of people with Autism Spectrum Disorder (ASD).The relevance of this study is justified by the limited number of investigations published in the research literature concerning the use of psychological tests used for evaluating the personality of individuals with ASD. The Rorschach Method was chosen as an appropriate instrument considering it reveals the personality s basic structure, including characteristics of the affectivity, sensuality, inner life, mental resources, psychic energy and general characteristics and intellectual state of the individual. The general objective of this investigation consisted of verifying the applicability of the use the Rorschach Method in the evaluation of the characteristics of people's personality with autism spectrum disorder (ASD).The study also sought to identify perceptive factors of the personality structure of individuals with ASD, provide contributions of the understanding of this syndrome, seeking the establishment of possible therapeutic interventions starting from diagnostic by Rorschach Method. In addition, this investigation aims at verifying the adequacy of using the Rorschach Method as an instrument for evaluating the personality characteristics of individuals with ASD and its possible use in Brazil, starting from preliminary normative results. Participants consisted of 44 youngsters and adults, both genders with age range 14 - 39 years-old (average: 23.5 years-old) distributed in 2 groups. Group 1: composed with 22 youngsters and adults with clinical diagnosis of autism spectrum disorder (communication impairments, social interaction deficits, restricted and repetitive interests and activities); Group 2: composed with 22 youngsters and adults with typical behavior. The participants were paired to gender and age, individually. The Mann-Whitney and Wilcoxon tests were applied to evaluate statistical differences between the groups, considering demographic and social data. The results indicate the presence of restricted interest or difficulty in the expression of the social and affective interaction of people with ASD. However, the need of broader normative studies concerning the use of personality evaluation instruments for people with ASD is warranted. These investigations could help understand the psychic dynamism of this population, offering subsidies that can be added to the current techniques of diagnosis. The Rorschach Method is susceptible to application but it is necessary to respect the individual limitations of these people and to establish more criterions about the spectrum / O presente trabalho investiga a aplicabilidade do Rorschach na avalia??o de caracter?sticas de personalidade de sujeitos com Transtorno do Espectro Autista (TEA). A relev?ncia do estudo deve-se ? necessidade do desenvolvimento de pesquisas na ?rea de avalia??o psicol?gica de sujeitos com TEA, mediante a utiliza??o de instrumentos apropriados para tal finalidade. A escolha pelo M?todo de Rorschach ampara-se em ser uma t?cnica que revela a organiza??o b?sica da estrutura da personalidade, incluindo caracter?sticas da afetividade, sensualidade, vida interior, recursos mentais, energia ps?quica e tra?os gerais e particulares do estado intelectual do sujeito. Os objetivos espec?ficos buscaram identificar os fatores perceptivos da estrutura de personalidade de sujeitos com TEA; contribuir para o entendimento de tal s?ndrome, visando o estabelecimento de poss?veis interven??es terap?uticas a partir do Psicodiagn?stico do Rorschach e, verificar a adequa??o do referido m?todo como instrumento de avalia??o de caracter?sticas de personalidade de sujeitos com TEA e poss?veis uso no Brasil, a partir de resultados normativos preliminares. Os participantes foram pareados individualmente por sexo e idade totalizando 44 adolescentes, jovens e adultos de ambos os sexos, na faixa et?ria de 14 a 39 anos (m?dia: 23,5 anos) distribu?dos em 2 grupos. Grupo 1 composto por 22 adolescentes,jovens e adultos com diagn?stico cl?nico do espectro autista (dificuldades na comunica??o, intera??o social, atividades e interesses restritos e repetitivos); Grupo 2 constitu?do de 22 adolescentes, jovens e adultos com comportamento t?pico e escolaridade compat?vel ao primeiro grupo. As an?lises foram obtidas por meio dos testes estat?sticos Mann-Whitney e Wilcoxon para verifica??o das poss?veis diferen?as, considerando vari?veis sociodemogr?ficas. Os resultados apontam para um interesse restrito ou mesmo dificuldade na express?o da intera??o s?cio-afetivas dos sujeitos com TEA. Ressalta-se, por?m, a necessidade de estudos acerca da avalia??o de caracter?sticas de personalidade de sujeitos com TEA visando uma melhor compreens?o do dinamismo ps?quico desses de modo a fornecer subs?dios que possam somar-se as t?cnicas diagn?sticas j? existentes, sendo o M?todo de Rorschach uma possibilidade de caracteriza??o de express?o da personalidade
88

S?ntese pelo m?todo pechini e caracteriza??o da zirc?nia dopada com c?rio e neod?mio

Andrade, Izangela Marculino de 21 March 2012 (has links)
Made available in DSpace on 2014-12-17T15:42:16Z (GMT). No. of bitstreams: 1 IzangelaMA_TESE.pdf: 6002351 bytes, checksum: 61a1b03824f174ac0458b386d74608e7 (MD5) Previous issue date: 2012-03-21 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / In this study five compositions were synthesized zirconia doped with cerium and neodymium ions in the system Ce10-xNdx Zr90O2 with 0,5 ≤ x ≤ 4,0 using the Pechini method. The powders were characterized by thermogravimetric analysis, differential thermal analysis, infrared spectroscopy and X-ray diffraction, with application of Rietveld refinement of the calcination temperatures of 350?C/3h and 30 minutes at 900?C/3h. All compositions stabilized with a mixture of cubic and tetragonal phase zirconia. The samples were pressed into bars and sintered at 1500?C/3h and 1500?C/6h, being characterized by Xray diffraction, with application of the Rietveld refinement, density and porosity using Archimedes method, scanning electron microscopy and resistance the three point bending. It has been observed the increase in strength with increasing sintering temperature for the compositions x = 2,0 and x = 4,0. For x = 2,0 the main phase was the cubic with 92,56% with crystallite size of 0,56 μm, density and porosity of 96,82% from 1,36%. For x = 4,0 was a mixture of cubic and tetragonal phase with 21% and 37,98%, respectively. The crystallite size was 54,21 nm and 49,64 nm with a density porosity of 97,45% and 1,32% respectively. In the analysis of the fracture surface was observed a greater amount of grain fracture intragranular type, which contribute to increase the mechanical strength of the ceramic. Increased addition of the neodymium ion in the crystal lattice of the zirconium showed a nearly linear behavior with increasing mechanical strength of the zirconia ceramic. Was obtained a bending resistance of 537 ? 38 MPa for the composition x = 2,0 predominantly attributed to cubic phase with 92,56% / No presente trabalho foram sintetizadas cinco composi??es de zirc?nia dopada com ?ons c?rio e neod?mio no sistema Ce10-x.Ndx Zr90O2 com 0,5 ≤ x ≤ 4,0 com o uso do m?todo Pechini. Os p?s foram caracterizados por an?lise termogravim?trica, an?lise t?rmica diferencial, espectroscopia na regi?o do infravermelho e difra??o de raios X, com a aplica??o do refinamento de Rietveld nas temperaturas de calcina??o de 350?C/3h e 30 minutos a 900?C/3h. Todas as composi??es estabilizaram com mistura de fase tetragonal e c?bica da zirc?nia. As amostras foram prensadas em forma de barras e sinterizadas a 1500?C/3h e 1500?C/6h, sendo caracterizadas por difra??o de raios X, com a aplica??o do refinamento de Rietveld, densidade e porosidade usando o m?todo de Arquimedes, microscopia eletr?nica de varredura e resist?ncia a flex?o em tr?s pontos. Foi observado o aumento da resist?ncia mec?nica com o aumento da temperatura de sinteriza??o para as composi??es x=2,0 e x=4,0. Para x=2,0 a fase principal foi ? c?bica com 92,56 % com tamanho de cristalito de 0,56 μm, densidade de 96,82 % e porosidade de 1,36 %. Para x=4,0 ocorreu uma mistura da fase tetragonal e c?bica com 21 % e 37,98 %, repectivamente. O tamanho de cristalitos foi de 54,21 nm e 49,64 nm, com densidade de 97,45 % e porosidade de 1,32 %, respectivamente. Nas an?lises da superf?cie de fratura foi observado uma maior quantidade de gr?os com fratura do tipo intragranular, na qual contribuiu para o aumento da resist?ncia mec?nica da cer?mica. O aumento da adi??o do ?on neod?mio na rede cristalina da zirc?nia apresentou um comportamento quase linear com o aumento da resist?ncia mec?nica da cer?mica de zirc?nia. Foi obtida uma resist?ncia a flex?o de 537 ? 38 MPa para a composi??o x=2,0 atribu?da a predomin?ncia da fase c?bica com 92,56 %
89

S?ntese e caracteriza??o da ferrita de MnZn obtida pelo m?todo dos citratos precursores

Bezerra, Maria Jos? Oliveira da Silva 17 September 2007 (has links)
Made available in DSpace on 2014-12-17T15:42:27Z (GMT). No. of bitstreams: 1 MariaJOSB.pdf: 5434037 bytes, checksum: 1a000204d534c8f41a3acbfce7dfaef5 (MD5) Previous issue date: 2007-09-17 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / It was synthesized MnZn ferrite with general formulae Mn1-xZnxFe2O4 (mol%), 0,3 &#8804; x &#8804; 0,7 by using the citrate precursor method. The precursors decomposition was studied by thermogravimetric analysis (TGA), differential thermogravimetric analysis (DTG), differential thermal analysis (DTA) and Fourier transform infrared (FTIR) of powder calcined at 350?C/3,5h. X-ray diffraction pattern (XRD) of samples was done from 350 to 1200?C/2h using various atmospheres. The power calcined at 350?C/3,5h formed spinel phase. It is necessary atmosphere control to avoid secondary phase such as hematite. From 900 to 1200?C was obtained 90,66 and 100% of MnZn spinel ferrite phase, respectively. Analysis by dispersive energy scanning (EDS) at 350?C shows high Mn and Zn dispersion, indicating that the diffusion process was homogeneous. Semi-quantitative analysis by EDS verified that despite the atmosphere control during calcinations at high temperatures (< 800?C) occurred ZnO evaporation causing stoichiometric deviation. Vibrating sample magnetometer (VSM) measures show soft ferrite material characteristics with Hc from 6,5 x 10-3 to 11,1 x 10-2 T. Saturation magnetization (Ms) and initial permeability (?i) of MnZn spinel phase obtained, respectively, from 14,3 to 83,8 Am2/kg and 14,1 to 62,7 (Am2/kg)T / Foi sintetizada ferrita de MnZn com f?rmula geral Mn1-xZnxFe2O4 (mol%) para 0,3 &#8804; x &#8804; 0,6 com uso do m?todo dos citratos precursores. A decomposi??o dos precursores foi estudada por an?lise termogravim?trica (TGA), termogravim?trica diferencial (DTG), an?lise t?rmica derivada (DTA) e espectroscopia na regi?o do infravermelho (FTIR) dos p?s calcinados em 350?C/3,5h. Foram feitas difra??es de raios X (DRX) entre 350 e 1200?C/2h usando v?rias atmosferas. O p? calcinado a 350?C/3,5h formou fase espin?lio. ? necess?rio o controle da atmosfera para evitar fases secund?rias como a hematita. Em 900 e 1200?C foram obtidos respectivamente, 90,7 e 100% de fase ferrita espin?lio. An?lises por espectroscopia de energia dispersiva (EDS) em 350?C mostrou alta dispers?o de Mn e Zn, indicando que o processo de difus?o foi homog?neo. A an?lise semi-quantitativa por EDS verificou que apesar do controle da atmosfera durante a calcina??o em altas temperaturas (> 800?C), ocorreu vaporiza??o de ZnO causando desvio estequiom?trico. Medidas por magnet?metro de amostra vibrante (MAV) mostraram caracter?sticas de materiais magneticamente macios com Hc de 6,5 x 10-3 at? 11,1 x 10-2 T. A magnetiza??o de satura??o e a permeabilidade inicial da fase espin?lio de MnZn foi obtida entre 14,3 a 83,8 Am2/kg e 14,1 a 62,7 (Am2/kg)T, respectivamente
90

The evolution of the advertisement call in glassfrogs (Centrolenidae Taylor, 1951)

Sulbar?n, Mois?s David Escalona 28 March 2018 (has links)
Submitted by PPG Zoologia (zoologia-pg@pucrs.br) on 2018-09-13T17:02:53Z No. of bitstreams: 1 Disserta??o - Escalona - Mois?s.pdf: 3628906 bytes, checksum: a6fc5f6bc6015a1a1a95f67e3c5c5f16 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-09-14T17:19:08Z (GMT) No. of bitstreams: 1 Disserta??o - Escalona - Mois?s.pdf: 3628906 bytes, checksum: a6fc5f6bc6015a1a1a95f67e3c5c5f16 (MD5) / Made available in DSpace on 2018-09-14T17:46:57Z (GMT). No. of bitstreams: 1 Disserta??o - Escalona - Mois?s.pdf: 3628906 bytes, checksum: a6fc5f6bc6015a1a1a95f67e3c5c5f16 (MD5) Previous issue date: 2018-03-28 / Conselho Nacional de Pesquisa e Desenvolvimento Cient?fico e Tecnol?gico - CNPq / Os anuros emitem cantos de an?ncio com o objetivo de atrair parceiros e repelir concorrentes co-espec?ficos. Eu investiguei a associa??o entre o comprimento do corpo, o s?tio de vocaliza??o, o cuidado parental e a varia??o em propriedades ac?sticas do canto (dura??o do canto, n?mero de notas, freq??ncia de pico, largura de banda de freq??ncia e estrutura do canto) em pererecasde-vidro?uma fam?lia de pererecas que habitam florestas neotropicais?controlando para efeitos de ancestralidade compartilhada. Eu tamb?m explorei o tempo e o modo de evolu??o dessas caracter?sticas e as comparei com as de tr?s caracter?sticas morfol?gicas (comprimento do corpo, largura da cabe?a e comprimento da t?bia). Eu gerei e compilei dados ac?sticos para 72 esp?cies de pererecas-de-vidro (46 % da riqueza descrita), incluindo representantes de todos os g?neros, e analisei os dados usando m?todos comparativos filogen?ticos. Descobri que quase todas as caracter?sticas ac?sticas avaliadas tinham sinal filogen?tico significativo, mas geralmente modesto. O pico de frequ?ncia dos cantos ? significativamente associado ao comprimento do corpo, enquanto a estrutura dos cantos ? significativamente associada ao s?tio de vocaliza??o e ao sexo do adulto que desempenha cuidado-parental. Meus resultados sustentam que, al?m das restri??es filogen?ticas, o tamanho do corpo est? associado ? evolu??o dos cantos de an?ncio em Centrolenidae. A diversifica??o de caracter?sticas ac?sticas ao longo da filogenia de pererecas-de-vidro concorda com a radia??o dos taxa na transi??o entre Mioceno e Plioceno. A disparidade estimada para caracter?sticas ac?sticas foi geralmente maior que a de caracter?sticas morfol?gicas, e o pico de disparidade de caracter?sticas ac?sticas geralmente ocorreu mais tarde na evolu??o do grupo, sugerindo um in?cio historicamente recente da pronunciada diverg?ncia ac?stica entre esp?cies deste clado. / Anurans emit advertisement calls with the purpose of attracting mates and repelling conspecific competitors. I investigated the association between body size, calling site and parental care with call variables (call duration, number of notes, peak frequency, frequency bandwidth and call structure) in glassfrogs?a family of leaf-dwelling frogs which inhabit Neotropical forests?while controlling for effects of shared ancestry. I also explored the tempo and mode of evolution of these traits and compared them with those of three morphological traits (snout-vent length, and relative head width and tibia length). I generated and compiled acoustic data for 72 glassfrog species (46 % of described diversity), including representatives of all genera (n = 12), and analyzed the data using phylogenetic comparative methods. I found that almost all acoustic traits evaluated had significant, but generally modest phylogenetic signal. Peak frequency of calls is significantly associated with body-size, while call structure is significantly associated with calling site and with the sex of the caring parent. My results support that, besides phylogenetic constraints, body size is associated with the evolution of advertisement calls in glassfrogs. Diversification of acoustic traits along the phylogeny of glassfrogs is coincident with the radiation of extant taxa at the Miocene-Pliocene boundary. The estimated disparity of acoustic traits was larger than that of morphological traits and the peak in disparity of acoustic traits generally occurred later in the evolution of glassfrogs, suggesting a historically recent outset of the pronounced acoustic divergence in this clade.

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