Submitted by PPG Filosofia (filosofia-pg@pucrs.br) on 2018-03-26T17:13:35Z No. of bitstreams: 1 TESE EVERTON MACIEL.pdf: 1257955 bytes, checksum: f2b318c6d283f9027984c7c2d8ebbe84 (MD5) / Approved for entry into archive by Tatiana Lopes (tatiana.lopes@pucrs.br) on 2018-04-06T13:45:36Z (GMT) No. of bitstreams: 1 TESE EVERTON MACIEL.pdf: 1257955 bytes, checksum: f2b318c6d283f9027984c7c2d8ebbe84 (MD5) / Made available in DSpace on 2018-04-06T13:49:35Z (GMT). No. of bitstreams: 1 TESE EVERTON MACIEL.pdf: 1257955 bytes, checksum: f2b318c6d283f9027984c7c2d8ebbe84 (MD5) Previous issue date: 2018-03-07 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The general aim of this thesis is to demonstrate that John Stuart Mill did not perpetrate a naturalistic fallacy. This argument can be applied to naturalism in gen-eral, but there seems to be a limitation for it to be used on Mill's utilitarianism. We think it is possible to demonstrate that he had, in his connection between justice and utility, a valuable method for the establishment of rules and principles that work like a standard for the normativity of laws; yet it does not offer a definition of ?good in natu-ral terms?. Facts and values need to be justified by a set of normative theories. Jus-tice is dependent of the coexistence between rules and principles, so it has a rela-tionship of value with the utilitarianism (as a fact). This shows us that justice?s protec-tive rules are worth making, if taking into account features that are required by many different social contexts, which provide valuable facts for the implementation and grounding of rules and principles. The letters between Mill and Comte show us to what degree the Londoner subscribed the naturalism to the positivism and the rea-sons why he chose an idea of stability, both from a qualitative and a quantitative point of view of a political theory. Therefore, he defined a very factual based democ-racy concept, a criteria of the modern liberalism, and the aim of ought-is for possible corrections. The unrestricted freedom of thought and discussion is another feature that triggers the prescriptive and descriptive elements of Mill's utilitarianism, intimate-ly connected to the representative democracy. The normative justification in this con-text, does not operate by the epistemological aspect, but by the political sense of public justification, addressed to the moral community, fallibilist and, therefore, adaptable. Let us suggest that Moore pointed out a special naturalistic fallacy de-manding a "proof" of the utilitarianism principle by the summum bonum analysis. We will try to demonstrate that such proof is not feasible and that Mill, who knew about it, chose the political way to establish a ground criterion for the normativity. Rawls, on the other hand, subscribed Mill's liberalism, because he thought it is valid theory to justify fair and free institutions. Both Mill and Rawls present compromising liberal el-ements in their theories, regarding fact-valuable features. / O objetivo geral desta tese ? demonstrar que John Stuart Mill n?o cometeu uma fal?cia naturalista. O argumento da quest?o em aberto pode ser aplicado ao naturalismo em geral, mas parece haver uma barreira para estend?-lo ao utilitarismo de Mill. Acreditamos ser poss?vel demonstrar que ele tinha na conex?o entre justi?a e utilidade um m?todo valioso para o estabelecimento de regras e princ?pios que operam como um crit?rio para a normatividade jur?dica, n?o sendo o caso de definir o ?bom em termos naturais?. Fatos e valores precisavam ser justificados em conjunto dentro de teorias normativas. A justi?a ? dependente de uma coexist?ncia entre re-gras e princ?pios e, assim, relaciona-se valorativamente com o utilitarismo (enquanto fato). Isso resulta em regras preventivas de justi?a que valem o empreendimento de serem confeccionadas, levando em conta as caracter?sticas exigidas pelos mais dife-rentes ambientes sociais, fatos valiosos para a implementa??o de regras e funda-menta??o de princ?pios. As cartas trocadas entre Mill e Comte mostram at? que pon-to o londrino subscreveu o naturalismo do positivismo e os motivos pelos quais op-tou por uma ideia de estabilidade, quantitativa e qualitativa do ponto de vista de uma teoria pol?tica. Ele abriu, assim, espa?o para uma concep??o de democracia tanto factual, crit?rio do liberalismo moderno, quanto objetivo de dever-ser para eventuais corre??es. A irrestrita liberdade de pensamento e discuss?o ? outra caracter?stica que aciona elementos prescritivos e descritivos do utilitarismo de Mill, intimamente vinculada com a democracia representativa. A justifica??o da normatividade nesse contexto, n?o opera pelo vi?s epistemol?gico, mas pelo sentido pol?tico de justifica-??o p?blica, endere?ada ? comunidade moral, falibilista e, portanto, pass?vel de eventuais ajustes. Vamos sugerir que Moore apontou uma fal?cia naturalista especi-al exigindo uma ?prova? do princ?pio da utilidade pela an?lise do summum bonum. Tentaremos mostrar que essa prova n?o ? vi?vel e Mill, reconhecendo isso, optou pelo caminho pol?tico para estabelecer um crit?rio de fundamenta??o da normativi-dade. Rawls, por sua vez, subscreveu o liberalismo de Mill por julg?-lo leg?timo para justificar institui??es livres e equitativas. Ambos apresentam elementos liberais com-prometedores em suas teorias, no que diz respeito ?s caracter?sticas fato-valorativas.

Submitted by PPG Filosofia (filosofia-pg@pucrs.br) on 2018-05-02T13:54:54Z No. of bitstreams: 1 DISSERTA??O - ?TALO DA SILVA ALVES.pdf: 922926 bytes, checksum: 37b72dc5a9648c006567e23bf7c504be (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2018-05-02T14:16:19Z (GMT) No. of bitstreams: 1 DISSERTA??O - ?TALO DA SILVA ALVES.pdf: 922926 bytes, checksum: 37b72dc5a9648c006567e23bf7c504be (MD5) / Made available in DSpace on 2018-05-02T14:18:35Z (GMT). No. of bitstreams: 1 DISSERTA??O - ?TALO DA SILVA ALVES.pdf: 922926 bytes, checksum: 37b72dc5a9648c006567e23bf7c504be (MD5) Previous issue date: 2018-03-05 / Conselho Nacional de Pesquisa e Desenvolvimento Cient?fico e Tecnol?gico - CNPq / In this work, I ask what is the normative capacity of dissensus in a theory of social normativity. I investigate the fundamental elements of a deliberative theory of social normativity set forth by J?rgen Habermas and argue that, in a project of deliberative normative justification, not only consensus but also dissensus has normative capacity. I present a minimal formulation of Habermas? normative project, which encompasses the concepts of discourse, consensus and public sphere, and then proceed to distinguish three different realms in a deliberative theory of social normativity ? politics, the political, and the dispute for politicity ? approaching the nature and the role of dissensus in each one. I argue that (a) politics is a realm of the institutions of liberal democracy, where dissensus takes the form of conflict among groups and models of public spheres, having the role of keeping the public sphere multiple and inclusive; (b) the political is the realm of interaction of discourses about the imperative of human coexistence in the world, where dissensus takes the form of adversariness and has the role of maintaining the disagreement necessary for pluralism; and (c) the dispute for politicity is the pre-discursive realm where struggles for the capacity to issue political claims take place, where dissensus has the role of pointing out the unjustified partiality of the discursive genre as the only one capable of conveying social interactions with normative potential. / Neste trabalho, questiono qual ? a capacidade normativa do dissenso em uma teoria da normatividade social. Para tanto, investigo os elementos fundamentais de uma teoria deliberativa da normatividade social estabelecidos por J?rgen Habermas e sustento que, em um projeto deliberativo de justifica??o normativa, n?o apenas o consenso, mas tamb?m o dissenso possui capacidade normativa. Apresento uma formula??o m?nima do projeto normativo de Habermas, que envolve os conceitos de discurso, consenso e esfera p?blica, e fa?o uma distin??o entre tr?s ?mbitos diferentes presentes em uma teoria deliberativa da normatividade social ? a pol?tica, o pol?tico e a disputa pela politicidade ?, abordando a natureza e o papel do dissenso em cada um deles. Defendo que (a) a pol?tica ? um ?mbito das institui??es da democracia liberal, onde o dissenso toma a forma de conflito entre grupos e modelos de esferas p?blicas e tem o papel de manter a esfera p?blica m?ltipla e inclusiva; (b) o pol?tico ? o ?mbito da intera??o de discursos sobre o imperativo da coexist?ncia humana no mundo, onde o dissenso toma a forma de adversariedade e tem o papel de manter o desacordo necess?rio ao pluralismo; e (c) a disputa pela politicidade ? o ?mbito pr?-discursivo onde t?m lugar as reivindica??es pela capacidade de emitir demandas normativas, onde o dissenso tem o papel de apontar a parcialidade injustificada do g?nero discursivo como ?nico capaz de comportar intera??es sociais com potencial normativo.

Made available in DSpace on 2015-04-14T14:46:11Z (GMT). No. of bitstreams: 1 444378.pdf: 142341 bytes, checksum: 416981eb85044474ee2dc7c88e0c8517 (MD5) Previous issue date: 2012-08-31 / This dissertation performs discourse analysis of the opposition PSDB during the administration of President Luiz In?cio Lula da Silva ( 2003-2010 ). From a perspective herding approach the Analysis of Discourse and elements of Science Policy, the study is aimed based on placements of toucan s leaders on corruption, economic policy and social programs, understand which emergency conditions marked the structuring of a discourse of opposition to PT management. Besides articulation strategies discoursive used by the PSDB will be used investigated. The corpus of research was composed by the pronoucements delivered, in plenary by leaders of PSDB in the Chamber of Deputies. The study also uses statements of other important characters in the hierarchy tucana, taken from the newspaper Folha de S?o Paulo. This work also collected at regular and PT leaders to better contextualize the coping between opposition and government. / Esta disserta??o realiza a an?lise do discurso de oposi??o do PSDB durante o governo do presidente Luiz In?cio Lula da Silva (2003-2010). A partir de uma perspectiva que re?ne a abordagem da An?lise de Discurso e elementos da Ci?ncia Pol?tica, o trabalho tem como objetivos, com base nos posicionamentos dos l?deres tucanos1 sobre corrup??o, pol?tica econ?mica e programas sociais, compreender que condi??es de emerg?ncia marcaram a estrutura??o de um discurso de oposi??o ? gest?o petista. Al?m disso, ser?o investigadas quais as estrat?gias de articula??o discursiva utilizadas pelo PSDB. O corpus da pesquisa foi composto pelos pronunciamentos proferidos, em plen?rio, pelos l?deres do PSDB na C?mara dos Deputados. O estudo tamb?m utiliza declara??es de outros personagens importantes na hierarquia tucana, retiradas do jornal Folha de S?o Paulo. Para melhor contextualizar o enfrentamento entre oposi??o e governo, este trabalho coletou, tamb?m no peri?dico, manifesta??es de integrantes do governo e l?deres do PT.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-04-17T13:52:43Z No. of bitstreams: 1 467312 - Texto Completo.pdf: 12104060 bytes, checksum: fab068a173a82aab41a55d8875dc36ae (MD5) / Made available in DSpace on 2015-04-17T13:52:43Z (GMT). No. of bitstreams: 1 467312 - Texto Completo.pdf: 12104060 bytes, checksum: fab068a173a82aab41a55d8875dc36ae (MD5) Previous issue date: 2015-03-30 / In this study the spatial confinement effects on the topological (mass transport and particle ejection) and chemical modifications of poly(methyl methacrylate) thin films (1<?<360 nm) irradiated by swift heavy ions were systematically investigate. The surface tracks dimensions were characterized by atomic force microscopy and the results show that the surface effects are weakened when the length of the ion track is spatially confined down to few nanometers. The deviation from bulk-like behavior starts at a critical thickness ?1 as large as ~40 nm to the ridge volume, due to effects associated to cooperative action of excited material along the track. However, ?1 is much smaller for effects related to events close to the surface, such as the crater size (?1~10 nm). Analytical calculations based on the pressure pulse model were carried out to investigate theoretical aspects of the ion-matter energy transfer in the transport and dissipation of the deposited energy. The results obtained from these calculations match the experimental observations. Chemical modifications were investigated by quantifying bond breaking rates, extracted by x-ray photoelectron spectroscopy. Cross sections for carbon-oxygen bonds for films under Bi irradiation are slightly smaller for thinner films, whilst for proton irradiation the values do not show substantial difference down to the smallest thickness viable for analysis (?~5 nm). From these set of data it is verified that the ionic irradiation effects on polymer thin films are weakened under spatial confinement into layers with ? below a certain critical value ?1, dependent on the probed effect. Substantial difference on the surface track dimensions were not observed between the distinct substrates investigated. / Neste trabalho foram investigados sistematicamente os efeitos de confinamento espacial nas modifica??es topol?gicas (transporte de massa e eje??o de part?culas) e qu?micas induzidas por ?ons pesados de alta energia (de dezenas a milhares de MeV) em filmes finos de poli(metacrilato de metila) (1< ? <360 nm). As dimens?es dos efeitos de superf?cie induzidos pela irradia??o foram caracterizadas por microscopia de for?a at?mica e os resultados mostram claramente o enfraquecimento dos efeitos induzidos pela irradia??o quando o comprimento da trilha ? reduzido a poucos nan?metros. Desvios do comportamento observado para filmes bulk come?am em uma espessura cr?tica ?1 t?o grande quanto ~40 nm para o volume da protuber?ncia, devido ? redu??o dos efeitos de a??o cooperativa de material excitado ao longo da trilha. Entretanto, ?1 ? bem menor para efeitos relacionados a eventos pr?ximos ? superf?cie, como o tamanho cratera (?1~10 nm). C?lculos anal?ticos pelo modelo do pulso de press?o foram utilizados para investigar aspectos te?ricos da transfer?ncia de energia ?on-material no transporte e dissipa??o da energia depositada. Os resultados obtidos a partir desses c?lculos corroboram com observa??es experimentais. As modifica??es qu?micas foram investigadas atrav?s das se??es de choque de quebra de liga??es, extra?das por espectroscopia de fotoel?trons por raios x. As se??es de choque de danos para as liga??es carbonooxig?nio, obtidas para irradia??es com ?ons de Bi de 2,2 GeV, s?o levemente reduzidas para filmes mais finos, enquanto as se??es de choque para filmes irradiados com pr?tons de 2 MeV n?o mostram diferen?as significativas at? a espessura mais fina acess?vel por an?lise de XPS (?~5 nm). A partir desse conjunto de dados verificou-se o enfraquecimento dos efeitos induzidos pela irradia??o em filmes polim?ricos sob confinamento espacial em camadas com ? abaixo de um valor cr?tico ?1, sendo ?1 dependente do efeito sondado. N?o foram observadas diferen?as significativas do efeito da espessura para diferentes substratos.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-06-29T11:27:22Z No. of bitstreams: 1 471334 - Texto Completo.pdf: 4524191 bytes, checksum: f5450152427bd38ead2e27ad8d28c46b (MD5) / Made available in DSpace on 2015-06-29T11:27:23Z (GMT). No. of bitstreams: 1 471334 - Texto Completo.pdf: 4524191 bytes, checksum: f5450152427bd38ead2e27ad8d28c46b (MD5) Previous issue date: 2012-07-12 / This work aims to obtain polymer blends containing polypropylene wtih conductive nanofibers formed by polyaniline and graphite nanosheets. Will study the effects of morphology and the electrical and mechanical properties of the resulting polymer. The polyaniline nanofibers are synthesized in the presence of graphite nanosheets using the methodology of rapid mixing. The preparation of blends of polypropylene is made by melting in the inner chamber. The morphology and structure of the nanofillers and blends will be evaluated by scanning electron microscopy (SEM), and Atomic Force Microscopy (AFM). The mechanical properties through tensile testing. The electrical properties by impedance spectroscopy. It was observed that a better dispersion of graphite with polyaniline nanofibers occurs when made in the aqueous solution containing the monomer, aniline in the presence of APS ultrasound for 1 hour. The electrical properties of the synthesized nanocomposite indicate characteristics of semiconductor. The mechanical and thermal properties of the blends did not change significantly with the addition of nanofillers, Higher conductivity values were obtained for high values of frequency, 106 Hz / Este trabalho busca a obten??o de blendas polim?ricas de polipropileno contendo nanocarga condutiva formada por nanofibras de polianilina (PANI) e nanol?minas de grafite (NLG). Foram estudados os efeitos da nanocarga na morfologia e nas propriedades el?tricas e mec?nicas do pol?mero resultante. As nanofibras de PANI foram sintetizadas na presen?a das nanol?minas de grafite por meio da metodologia da mistura r?pida. A prepara??o das blendas com polipropileno foi realizada por fus?o em c?mara interna. A morfologia e estrutura da carga nanom?trica e das blendas foram avaliadas por meio da Microscopia Eletr?nica de Varredura (MEV) e Microscopia ?tica, as propriedades mec?nicas por meio de ensaio de tra??o, as propriedades el?tricas por meio da Espectroscopia de Imped?ncia. Foi observado que a melhor dispers?o das nanol?minas de grafite junto ? polianilina ocorre quando feita na solu??o aquosa contendo o mon?mero, anilina, na presen?a do Persulfato de Am?nio (APS) durante 1h de ultrassom. As propriedades el?tricas dos nanocomp?sitos sintetizados indicam caracter?sticas de semicondutor. As propriedades mec?nicas e t?rmicas das blendas n?o sofreram altera??es significativas com a adi??o da nanocarga. Maiores valores de condutividade foram obtidos para elevados valores de frequ?ncia, 106 Hz.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-07-07T12:57:05Z No. of bitstreams: 1 471707 - Texto Completo.pdf: 875696 bytes, checksum: 681f03e704120fe92558e48e363af3d4 (MD5) / Made available in DSpace on 2015-07-07T12:57:05Z (GMT). No. of bitstreams: 1 471707 - Texto Completo.pdf: 875696 bytes, checksum: 681f03e704120fe92558e48e363af3d4 (MD5) Previous issue date: 2015-03-27 / Introduction : Non-living tissues have shown to be an important source of biomaterials, with advantages such as hydrophilicity, low toxicicidade, low immunogenicity, in addition to good adherence and cell multiplication. However, for these biomaterials to be used, techniques of descellularization is being used to make it less antigenic and also to serve as scaffolds.Objectives : The present study aims to compare different agents of descellularization regarding the above mentioned parameters, using detergents known to be effective for these processes.Materials and Methods : The samples used in this study were obtained from saphenous veins of seven individuals donors, in treatment of myocardial revascularization surgery and provided by the team of cardiovascular surgery of Hospital S?o Lucas da PUCRS, after signing the informed consent form.These samples were tested simultaneously three different detergents, sodium dodecyl sulfate (SDS), TRITON-X and trypsin, in addition to a control group containing Phosphate-Buffered Saline (PBS). After the process of descellularization and prior to the determination of cellularity, the samples were fixed in buffered formalin 10% during 24 hours, included in paraffin, sectioned (5 ?) and stained with hematoxylin and eosin. The number of cores was quantified in a radius of 0.025 mm (objective 40x), in duplicate, corresponding to eight fields, with the aid of the software Image Pr?-Plus 4.5.1. Data were analyzed using a model of analysis of variance for repeated measures (randomized blocks) with adjustment for multiple comparisons procedure of Finner's procedure were used.Results : The results evaluated all treatments showed a decrease in the number of cells, and the SDS the agent with greater descellularization. The TRITON-X and the Trypsin obtained similar values and there was no difference between them, for this process.Conclusion : In this way, it could be demonstrated that all detergents used, and the methodology it self, acts as agentes of descellularization in human veins and proved to be a promising agents to remove cells. / Introdu??o : Tecidos n?o vivos tem se mostrado uma importante fonte de biomateriais, apresentando vantagens como hidrofilidade, baixa toxicicidade, baixa imunogenicidade, al?m de boa ades?o e multiplica??o celular. Contudo, para que esses biomateriais sejam utilizados, t?cnicas de descelulariza??o v?m sendo utilizadas para que sejam menos antig?nicos e tamb?m para que sirvam como scaffolds.Objetivos : O presente estudo tem o objetivo de comparar diferentes agentes de descelulariza??o quanto aos par?metros citados acima, utilizando detergentes reconhecidamente eficazes para esses processos.Materiais e M?todos : As amostras utilizadas neste estudo foram obtidas de veias safenas de sete indiv?duos doadores, em tratamento de cirurgia de revasculariza??o do mioc?rdio e fornecidas pela equipe de cirurgia cardiovascular do Hospital S?o Lucas da PUCRS, ap?s assinatura do termo de consentimento livre e esclarecido (TCLE). Nessas amostras foram testados simultaneamente tr?s diferentes detergentes, s?dio dodecil sulfato (SDS), TRITON-X e tripsina, al?m de um grupo controle, contendo Phosphate-Buffered Saline (PBS) e um controle ?a fresco?. Ap?s o processo de descelulariza??o e previamente ? determina??o da celularidade, as amostras foram fixadas em formalina tamponada 10% durante 24horas, inclu?das em parafinas, seccionadas (5?) e coradas com hematoxilina e eosina. O n?mero de n?cleos presentes foi quantificado em um raio de 0,025 mm (objetiva 40x), em duplicata, correspondente a oito campos, com o aux?lio do software Image Pr?-Plus 4.5.1. Os dados foram analisados em modelo de an?lise de vari?ncia de medidas repetidas (blocos casualizados) com ajuste de compara??es m?ltiplas pelo procedimento de Finner.Resultados : Dos resultados avaliados todos os tratamentos mostraram um decr?scimo no n?mero de c?lulas, sendo o SDS o agente com maior descelulariza??o. O TRITON-X e a Tripsina obtiveram valores similares e n?o houve diferen?a entre eles, para esse processo.Conclus?o : Dessa forma, demonstrou-se que todos os detergentes empregados agem como descelularizadores em veias humanas, e mostram-se como promissores agentes de remo??o celular.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-11-26T11:39:49Z No. of bitstreams: 1 476451 - Texto Completo.pdf: 8210475 bytes, checksum: d312c576e78b0f9de246885a55a53e56 (MD5) / Made available in DSpace on 2015-11-26T11:39:49Z (GMT). No. of bitstreams: 1 476451 - Texto Completo.pdf: 8210475 bytes, checksum: d312c576e78b0f9de246885a55a53e56 (MD5) Previous issue date: 2015-03-03 / The search for improvements in the properties of polymer matrices has been the subject of several studies. Among these, the use of inorganic fillers has shown results that demonstrate improvements in many properties of the polymers. In this context, this study aimed to preparation of titanates nanotubes (TNT) and its application in polyurethane nanocomposites (PU). In order to the TNT were synthesized from commercial TiO2 in anatase phase by hydrothermal method. After, these TNT were functionalized (TNTF) with hexamethylene diisocianato (HDI) and silanes compounds: aminopropyl trimethoxysilane (APTMS) and tetraethyl orthosilicate (TEOS) in order to study the interaction of the functionalizated charge with the polymer matrix. The titanates nanotubes (TNT) and titanates nanotubes functionalized (TNTF) were characterized regarding their morphological and structural properties. Nanocomposites of PU with TiO2, TNT and TNTF were synthesized, via in situ polymerization and characterized by FTIR, GPC, SEM, TEM (just NTT), AFM, TGA, DSC and DRX techniques. The results showed that the TNT synthesis by hydrothermal method was effective and was obtained nanotubes formed with a minimum of 3 staked sheets. The TNTF functionalized with APTMS and TEOS showed clustered structures whereas with HDI has a separation of nanotubes. The addition of TNT-HDI provided an increase of polymer molar weight. All nanocomposites showed higher thermal stability (between 330-340oC) than the pure PU (325oC). Nanocomposites PU/TNTF presented the highest values for crystallization temperature (? 6-10oC) when compared to pure PU (5oC), besides of its enthalpies, indicating that TNTF promote the increase of the polyurethane crystallinity. / A busca por melhorias nas propriedades de matrizes polim?ricas tem sido motivo de muitos estudos. Entre estes, a aplica??o de cargas inorg?nicas tem apresentado resultados que evidenciam melhorias nas diversas propriedades dos pol?meros. Dentro deste contexto insere-se este trabalho, que teve como objetivo principal a prepara??o de nanotubos de titanatos (NTT) e sua aplica??o em nanocomp?sitos de poliuretano (PU). Para tanto, os NTT foram sintetizados partindo de TiO2 comercial na fase anat?sio por m?todo hidrot?rmico. Ap?s, estes NTT foram funcionalizados (NTTF) com hexametilenodiisocianato (HDI) e os compostos: aminopropil trimetoxisilano (APTMS) e tetraetil ortosilicato (TEOS) a fim de estudar a influ?ncia destas funcionaliza??es na intera??o da carga com a matriz polim?rica. Os nanotubo de titanatos (NTT) e os nanotubos de titanatos funcionalizados (NTTF) foram caracterizados em rela??o as suas propriedades morfol?gicas e estruturais. Nanocomp?sitos de PU com TiO2, NTT e NTTF foram sintetizados, via polimeriza??o in situ, e caracterizados por t?cnicas de FTIR, GPC, MEV, MET (somente os NTT), AFM, TGA, DSC e DRX. Os resultados mostraram que a s?ntese dos NTT pelo m?todo hidrot?rmico foi eficiente e obteve-se nanotubos formados por no m?nimo 3 folhas empilhadas. Os NTTF funcionalizados com APTMS e TEOS apresentaram estruturas aglomeradas enquanto que com HDI houve afastamento dos nanotubos. A adi??o de NTT-HDI proporcionou um aumento da massa molar do pol?mero e maior mobilidade para a cadeia. Todos os nanocomp?sitos apresentaram maior estabilidade t?rmica (entre 330-340oC) que o PU padr?o (325oC). Os nanocomp?sitos PU/NTTF apresentaram os maiores valores para as temperaturas de cristaliza??o (? 6-10oC) comparado ao PU padr?o (Tc=5oC), al?m das respectivas entalpias indicando que os NTTF aumentam a cristalinidade do poliuretano.

Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-01-23T11:14:25Z No. of bitstreams: 1 OsvaldoCapelariJuniorDissertacaoParcial2017.pdf: 423283 bytes, checksum: 5fec61001a702978bac1bcf74cae01a2 (MD5) / Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-01-23T11:14:39Z (GMT) No. of bitstreams: 1 OsvaldoCapelariJuniorDissertacaoParcial2017.pdf: 423283 bytes, checksum: 5fec61001a702978bac1bcf74cae01a2 (MD5) / Made available in DSpace on 2018-01-23T11:14:39Z (GMT). No. of bitstreams: 1 OsvaldoCapelariJuniorDissertacaoParcial2017.pdf: 423283 bytes, checksum: 5fec61001a702978bac1bcf74cae01a2 (MD5) Previous issue date: 2017-11-29 / This study is dedicated to the application of the Brazilian anti-corruption law to political parties. Political parties are the mediators of the will of civil society and the state and, because of that, have a constitutional status of their own. They are indispensable to democracy. However, the behavior of the people exercising public functions creates risks of acts of corruption. This is the reason why the anti-corruption law elects objective, civil and administrative responsibility, with the purpose of sanctioning the legal entity of private law that competes or benefits from the act adversely affecting the Public Administration, including the foreign one. From the analysis of the anti-corruption law it is observed, although, that political parties were subtracted from their scope of incidence. It is important to point out that this is in line with the democratic ideal and, consequently, with a good democracy. This calls for responsiveness and accountability, and it is unreasonable for partisan associations to benefit from rules that draw the amount of enforcement from control agencies. On the other hand, since the political parties are contemplated in the law, due to the exegetical effort, one of the challenges of the present research, it is imperative that norms of good governance be created through independent internal control in order that the legal norms are and other regulations that may be created in its Statutes. In any case, the political party may, despite being considered not to be within the law, create integrity mechanisms, which will surely confer trust to the voter. This should be honored in the electoral campaign and his preferences be freely expressed in the vote. Yet, since democracy is not confined to voting, the role of accountability must be emphasized as fundamental to good party practices and, therefore, to the integrity of electoral and partisan systems. In this way, democracy will be substantive and the strengthening of political parties is one of its foundations. / O presente estudo trata da aplica????o da lei anticorrup????o nos partidos pol??ticos. Os partidos pol??ticos s??o os mediadores da vontade da sociedade civil e o Estado e, por isso, tem um estatuto constitucional pr??prio. S??o indispens??veis ?? democracia. Contudo, a a????o de pessoas que exercem mandatos e cargos p??blicos cria riscos de atos de corrup????o. Essa ?? a raz??o de a lei anticorrup????o eleger a responsabilidade objetiva, civil e administrativa, com o objetivo de sancionar a pessoa jur??dica de direito privado que concorra ou se beneficie do ato lesivo ?? Administra????o P??blica, inclusive a estrangeira. Entretanto, da an??lise da lei anticorrup????o observa-se que os partidos pol??ticos foram subtra??dos de seu ??mbito de incid??ncia. ?? importante salientar que isso vai de encontro com o ideal democr??tico e, via de consequ??ncia, com uma democracia de boa qualidade. Esta reclama responsiveness e accountability, n??o sendo razo??vel que as agremia????es partid??rias se beneficiem de normas que retirem quantidade de enforcement das ag??ncias de controle. Por outro, estando os partidos pol??ticos contemplados na lei, por for??a do esfor??o exeg??tico, um dos desafios da presente pesquisa, observa-se que ?? imperioso que sejam criados normas de boa governan??a atrav??s de controle interno independente a fim de que as normas legais sejam observadas, assim como as regulamentares e outras que por ventura sejam criadas nos seus Estatutos. De qualquer modo, o partido pol??tico pode, a despeito de se considerar que n??o estejam dentro da lei, criar os mecanismos de integridade, o que seguramente conferir?? confiabilidade perante o eleitor. Este deve ser prestigiado na campanha eleitoral e suas prefer??ncias serem livremente exprimidas no sufr??gio. Todavia, como a democracia n??o se confina com o voto, deve-se real??ar a fun????o da accountability como fundamental para as boas pr??ticas partid??rias e, por conseguinte, a integridade dos sistemas eleitorais e partid??rios. Desse modo, a democracia ser?? substantiva e o fortalecimento dos partidos pol??ticos ?? um de seus fundamentos.

Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-02-16T15:39:34Z No. of bitstreams: 1 GilceliadePaulaSantosDissertacaoParcial2017.pdf: 1342828 bytes, checksum: 280d86560833a80e06f4a639d91b59e9 (MD5) / Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-02-16T15:39:42Z (GMT) No. of bitstreams: 1 GilceliadePaulaSantosDissertacaoParcial2017.pdf: 1342828 bytes, checksum: 280d86560833a80e06f4a639d91b59e9 (MD5) / Made available in DSpace on 2018-02-16T15:39:42Z (GMT). No. of bitstreams: 1 GilceliadePaulaSantosDissertacaoParcial2017.pdf: 1342828 bytes, checksum: 280d86560833a80e06f4a639d91b59e9 (MD5) Previous issue date: 2017-11-29 / The present work consists of two essays and an experiment in which the behavior of the agents of the real estate market (Financial Institutions and alleged borrowers) is analyzed, using the Economic Analysis of Law combined with the Analytical-Behavioral Theory of Law. The objective of the work is to identify how these agents behave through the incentives granted by the Minha Casa, Minha Vida government program and the consequences of these behaviors in the real estate market. These studies are justified since the Federal Government has been working with the objective of reducing the country's housing deficit by means of actions to subsidize the acquisition of housing units for the lower income population, which are guided by a vast set of legal, Guiding the performance of individuals, builders and financial institutions, which ended up influencing the market, understood here as free interaction among the agents to perform barter trade. / O presente trabalho comp??e-se de dois estudos e um experimento, nos quais se analisa o comportamento dos agentes do mercado imobili??rio, institui????es financeiras e pretensos mutu??rios, utilizando-se a An??lise Econ??mica do Direito ??? AED. O objetivo dos trabalhos ?? identificar como comportam-se esses agentes mediante os incentivos concedidos pelo programa de governo Minha Casa Minha Vida e as consequ??ncias desses comportamentos no mercado imobili??rio. Estes estudos se justificam uma vez que o Governo Federal vem atuando com objetivo de reduzir o d??ficit habitacional do pa??s, por meio de a????es de subs??dios ?? aquisi????o de unidades habitacionais ?? popula????o de menor renda. Estas a????es s??o norteadas por um vasto conjunto de regras jur??dicas, guiando a atua????o de indiv??duos, construtoras e institui????es financeiras, que acabam por influenciar o mercado, aqui compreendido como intera????o livre entre os agentes para realiza????o de trocas por meio de barganha.

Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-03-22T16:32:16Z No. of bitstreams: 1 AlexandreCardosoFernandesDissertacao2018.pdf: 2016006 bytes, checksum: 7fd24bcd2aa3b4e878f606c4ac524571 (MD5) / Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2018-03-22T16:32:41Z (GMT) No. of bitstreams: 1 AlexandreCardosoFernandesDissertacao2018.pdf: 2016006 bytes, checksum: 7fd24bcd2aa3b4e878f606c4ac524571 (MD5) / Made available in DSpace on 2018-03-22T16:32:41Z (GMT). No. of bitstreams: 1 AlexandreCardosoFernandesDissertacao2018.pdf: 2016006 bytes, checksum: 7fd24bcd2aa3b4e878f606c4ac524571 (MD5) Previous issue date: 2018-02-26 / The main objective of this study is to analyze the effects of macroprudential policies, adopted by Brazil after the 2008 crisis, on the granting of credit to finance vehicles for individuals. The changes in the compulsory liabilities on time deposits and demand deposits, changes in the capital requirement and changes in the Tax on Financial Transactions (IOF) and Industrialized Products Tax (IPI) rates will be studied. In the empirical part, a multiple regression will be estimated to identify the main determinants of vehicle credit for individuals in Brazil. A review will be made of the literature on the trajectory of banking regulation from Basel I to Basel III, as well as the Micro and Macroprudential regulation. / O objetivo central do trabalho, ?? analisar os efeitos das pol??ticas macroprudenciais, adotadas pelo Brasil ap??s a crise de 2008, sobre a concess??o de cr??dito para financiamento de ve??culos para pessoas f??sicas. Ser??o estudadas as altera????es nas exigibilidades de compuls??rio sobre dep??sitos a prazo e ?? vista, mudan??a na exig??ncia de capital e altera????es nas al??quotas do Imposto sobre Opera????es Financeiras (IOF) e Imposto sobre Produtos Industrializados (IPI). Na parte emp??rica, ser?? estimada uma regress??o m??ltipla para identificar os principais determinantes da concess??o de cr??dito ve??culo para pessoas f??sicas no Brasil. Ser?? feita uma revis??o da literatura sobre trajet??ria da regula????o banc??ria de Basileia I a Basileia III, bem como da regula????o Micro e Macroprudencial.