Search

Introduction: To verify the literature concerning the mechanical properties, measuring methods and the resultant force system developed by closing loops (CL). The effectiveness of a certain CL is related to its geometry and the nature of the wire material. To obtain the necessary performance CL must work in the elastic range and be geometrically configured to express an adequate force system, which is the result of compensatory gable bends and preactivation. It was performed a literature search in MEDLINE from 1974 to 2014 using search for “orthodontic AND retraction AND springs” and “orthodontic AND closing AND loops”. From the 147 papers resulted from Pubmed, 50 were chosen. Overall, many works seek not only improve the knowledge about the force system, but also a better understanding of their mechanical behavior. FEM, Holographic and Photoelastic studies, are tests commonly used before testing them experimentally. Wire material and the cross-section show a great influence in the choice of the geometric variables because the modulus of elasticity (E), modulus of resiliency (R) and the moment of inertia (I). Experimental tests should be preceded by numerical methods because the latter idealize a particular setting, and allows modifying variables.

O contexto escolar e o público adolescente foram bastante impactados pelo novo cenário de pandemia. Objetivo: Analisar quais fatores decorrentes da pandemia tem repercutido na saúde mental dos adolescentes em contexto escolar, bem como averiguar as principais estratégias promotoras de saúde mental no contexto escolar em tempos de pandemia. Método: Trata-se de um relato de experiência de práticas multiprofissionais no contexto escolar, envolvendo as áreas da psicologia e da enfermagem com os alunos do ensino médio de uma escola filantrópica da cidade de Teresina - PI. Resultados: Foram identificadas demandas relacionadas í saúde do adolescente e a partir das práticas dos respectivos profissionais foi possí­vel oportunizar estratégias de promoção í saúde dos mesmos. Conclusão: Ficou evidente que mesmo diante da situação pandêmica e das adversidades, a preocupação com a saúde e bem estar dos alunos é única e impulsionou para o desenvolvimento de novas ações dentro da escola.

O novo coronavírus surgiu na China em dezembro de 2019, o bloqueio pandêmico interrompeu a continuidade do aprendizado e desencadeou o isolamento social, mudanças na rotina, cancelamento das atividades fora de casa, perda da sensação de segurança e temores sobre o futuro. O objetivo deste estudo foi realizar uma revisão narrativa a fim de identificar como a pandemia e o aumento do uso dos dispositivos tecnológicos emissores de luz azul interferem na qualidade do sono de crianças e adolescentes. Foram analisados artigos científicos sobre a referida temática e a busca nas bases de dados Pubmed, Science Direct e Scielo.Identificou-se 252 artigos, onde 30 foram utilizados na construção. A pandemia de COVID-19 aumentou os níveis de estresse psicológico em crianças e adolescentes em todo o mundo e interferiu na qualidade do sono, o qual desempenha papel fundamental para a saúde mental e física, onde a duração e qualidade adequadas são essenciais. Devido ao isolamento, fechamento das atividades comerciais e adesão ao ensino remoto, houve um aumento e uso generalizado de dispositivos eletrônicos portáteis, dessa forma, o impacto na qualidade do sono desse público alvo tem se mostrado expressivo. Portanto, o controle e tempo de uso das telas devem ser observados na qualidade do sono entre crianças e adolescentes, como prioridade nos contextos familiar, escolar e clínico.

Resumo: O presente artigo discute o conceito de “mundo da vida cotidiana”, uma das mais importantes contribuições da “sociologia fenomenológica” de A. Schutz para a teoria social contemporânea. Argumentamos que a premissa fundamental desse conceito se refere prioritariamente à questão de ação (fluxo de atividades sempre em vias de transformação e de concretização) e não apenas de significação. Partimos do pressuposto que a sua teoria assume um “caráter ontológico”: a existência humana consiste em ser/estar no mundo e é próprio do ser humano atuar. A ação é sempre circunstancial, requer um “ímpeto inicial” (motivo) e se constitui essencialmente como processo em curso (trajeto), o que difere do “ato” (o resultado desse percurso, a ação realizada). As significações, produzidas no fluxo de atividades, são interpretações de experiências passadas. Tal premissa levanta um desafio para a sociologia: como lidar com uma realidade que em si mesma é temporal, plural, incerta? Abstract: This article discusses the concept of “word of daily life”, one of the most important contributions of A. Schutz's “phenomenological sociology” to contemporary social theory. We argue that the fundamental premise of this concept refers primarily to the question of action (the flow of activities always in the process of transformation and realization) and not only of meaning. We start from the assumption that his theory assumes an “ontological character”: human existence consists in being in the world and it is proper to the human being to act. Action is always circumstantial, requires an “initial impetus” (motive) and is essentially constituted as an ongoing process (path), which differs from the “act” (the result of this path, the action taken). The meanings, produced in the flow of activities, are interpretations of past experiences. This premise raises a challenge for sociology: how to deal with a reality that in itself is temporal, plural, uncertain? Resumen: Este artículo discute el concepto de “mundo de la vida cotidiana”, una de las contribuciones más importantes de la “sociología fenomenológica” de A. Schutz a la teoría social contemporánea. Sostenemos que la premisa fundamental de este concepto se refiere principalmente a la cuestión de la acción (el flujo de actividades siempre en proceso de transformación y realización) y no sólo al significado. Partimos del supuesto de que su teoría asume un “carácter ontológico”: la existencia humana consiste en estar/ser en el mundo y es propio del ser humano actuar. La acción es siempre circunstancial, requiere un “impulso inicial” (motivo) y se constituye esencialmente como un proceso continuo (camino), que difiere del “acto” (el resultado de este camino, la acción tomada). Los significados, producidos en el flujo de actividades, son interpretaciones de experiencias pasadas. Esta premisa plantea un desafío a la sociología: ¿cómo tratar una realidad que en sí misma es temporal, plural, incierta?

O presente artigo discute o conceito de “mundo da vida cotidiana”, uma das mais importantes contribuições da “sociologia fenomenológica” de A. Schutz para a teoria social contemporânea. Argumentamos que a premissa fun-damental desse conceito se refere prioritariamente à questão de ação (fluxo de atividades sempre em vias de transformação e de concretização) e não apenas de significação. Partimos do pressuposto que a sua teoria assume um “caráter ontológico”: a existência humana consiste em ser/estar no mundo e é próprio do ser humano atuar. A ação é sempre circunstancial, requer um “ímpeto inicial” (motivo) e se constitui essencialmente como processo em curso (trajeto), o que difere do “ato” (o resultado desse percurso, a ação realizada). As significações, produzidas no fluxo de atividades, são interpretações de experiências passadas. Tal premissa levanta um desafio para a sociologia: como lidar com uma realidade que em si mesma é temporal, plural, incerta?

The duplex stainless steel UNS S32205 was plasma nitrided at 380 °C for 10 h using a gas mixture of 25% N2-75% H2. The thickness of the nitrided layer was 4.5 ± 0.5 μm, composed mainly of nitrogen-expanded austenite and iron nitrides precipitates. There was an increase in surface hardness around 2.6 and 3.8 times in the nitrided layer formed on the austenite and the ferrite phases, respectively, in relation to the untreated samples. The surface texture parameters skewness (Ssk), maximum peak height (Sp) and texture aspect ratio (Str) were the most appropriate parameters for studying the topography changes after treatment. An improvement in the localized corrosion properties after the nitriding treatment was revealed by the cyclic polarization curves. The nitrided samples showed higher pitting corrosion and repassivation potentials compared to the untreated material. The ferritic phases and grain boundaries were more susceptible to corrosion in the nitrided samples. The potentiodynamic curves of the nitrided samples exhibited a hillside on the passive-to-transpassive transition. This feature was already observed by other researchers, but it has not been well investigated. Potentiostatic studies demonstrated that metastable pitting took place on this transition.

Resumo Objetivo Análise biomecânica comparativa da resistência da fixação tibial para reconstrução ligamentar com parafuso de interferência, comparada com parafuso do tipo poste com arruela, e com fixação associada entre os métodos (fixação híbrida). Métodos Foram utilizados 54 corpos de prova (tíbia suína e tendão digital bovino), que foram divididos em 3 grupos com tipos de fixação semelhantes àqueles utilizados na reconstrução do ligamento cruzado anterior: 1) fixação com parafuso de interferência; 2) fixação com parafuso do tipo poste com arruela dentada sobre nó e fios de sutura; e 3) fixação com parafuso do tipo poste com arruela combinada com parafuso de interferência (fixação híbrida). Os testes foram realizados por meio de ensaios biomecânicos de tração tipo pull-out para determinação da rigidez e carga para falha (yield load) do sistema. Resultados O grupo com fixação híbrida apresentou maior rigidez final (59,10 ± 3,45 N/mm) do que os demais grupos (p Conclusão A fixação híbrida apresentou vantagens biomecânicas com relação ao sistema de fixação do enxerto de flexor digital bovino em tíbia suína durante os ensaios de tração.

Corrosion resistance of plasma carburized AISI 420 martensitic stainless steel was evaluated by cyclic polarization test in 3.5% NaCl solution. Two distinct treatment groups were studied with the purpose of evaluating the influence of the carburizing temperature and time on the corrosion behavior of treated material (one at 350–500 °C temperature range for 8, and 12 h times; and other one at 400 °C for 12–48 h time range, and at 450 °C for 4–16 h time range). To support the discussions on electrochemical test results, microstructural characterization was carried out using metallographic analysis and XRD techniques. Microstructural characterization results show that low temperature and short time treatments produce outer layer composed by α′C and Fe3C phases. High temperature and/or long time treatments promote outer layer Cr7C3 and Cr23C6 phases precipitation. Corrosion test results show improved carburized samples resistance, which is related to chromium-carbides precipitation-free outer layer formation. The Cr-carbides formation promotes a reduction on carburized samples corrosion resistance due to depletion of Cr in the solid solution of carburized layer. Finally, by confronting the behavior of untreated and carburized samples, it is verified the potentialities of the low-temperature plasma carburizing to enhance the corrosion resistance of AISI 420 MSS.

Samples of AISI 409 were thermochemically treated by the Solution Heat Treatment after Plasma Nitriding (SHTPN) process. SHTPN process consisted of a nitriding step followed by solution annealing at 1100 °C and rapid cooling down to room temperature. The second cycle of quenching (950 or 1050 °C), followed by tempering (250, 450, or 650 °C), was performed sequentially to SHTPN. Lubricated reciprocating tests were employed to analyze friction and wear behaviors. A bearing steel ball was used as a counterpart. The analysis of worn surfaces was assessed using optical interferometry and depth-sensing indentation. The last technique allows determining the work hardening caused by the wear process. Friction behavior was related to the deformation component: the higher the hardening, the higher the friction coefficient. Abrasion is the primary mechanism observed in all specimens, but there is a transitional behavior that depends on the original hardness of the surface. Samples with a similar hardness of bearing ball presented delaminated regions caused by highly deformed thin layer fatigue. Amongst SHTPN conditions NS-Q950-T2 and NS-Q1050-T2 presented the best balance of wear and corrosion performances.

The present paper verified the effect of the interbracket distance on the force system developed by orthodontic retraction springs with two delta geometries measured during space closure when spaces between teeth are present. By using a platform transducer, five different interbracket distances were tested. Also the finite element method was applied to know the von Mises stress during spring activation/deactivation process. It was concluded that the interbracket distance and spring geometry variables have not caused significant influence on the force system resulting from activations, but activation has produced a statistical difference.

Duplex surface treatments involving plasma nitriding (PN) followed by laser hardening (LH) were performed in this work on grade 450 compacted graphite iron (CGI) to investigate the effects of PN duration (1 and 3 h) and LH power (400, 449, and 514 W) on microstructure evolution, nitrogen profile, and hardening depth of CGI. X-ray diffraction (XRD) phase analysis indicated a reduction in and partial decomposition of e and γ’ nitrides corresponding to an increase in laser power. The existence of a new nitrogen-rich austenitic phase—FeN0.076—was observed along with the identification of certain iron oxides. The proposed duplex treatment of CGI was found to facilitate the establishment of duplex layers with higher surface hardness (826–951 HK 0.05) and greater hardening depths (300–750 μm). Additionally, a reduction in the hardness gradient was observed between the surface and substrate. This affords a major advantage in applications involving operations on mechanical components.

The reactions that can occur on organic materials treated in plasma enviorement are strongly affected by surface temperature, thus the sharp determination of this variable is extremely important to process control. In situ temperature measurements are often employed; however, the measured point is generally under the treated surface. If in metallic materials the high thermal conductivity minimizes this problem, in non-metallic materials processing it becomes important, because its thermal resistivity besides a high sensibility to small temperature variations. The present work uses a simulation tool to extract thermal data on Ar+O2 RF plasma processing of Stearic Acid. Experimental data were obtained by thermocouples placed inside the samples. The extrapolation of surface temperature was performed by numerical simulation with Autodesk CFD software v.15.1. Results show that the temperature of the surface reaches values higher than the ones measured inside the sample holder. This difference of temperature is in good agreement with the visual observation of the phase transformations in the treated material, showing a simple and valuable tool to better control of plasma treatments.

The UNS S32750 super duplex stainless steel (SDSS) was low temperature plasma nitrided at 350 °C and 400 °C for 4 h. Pitting and crevice corrosion resistance was evaluated using electrochemical techniques in a NaCl neutral solution. Nitriding treatments resulted in increased in hardness, general corrosion resistance and in the passive layer breakdown potential. Regarding crevice corrosion tests, the nitrided surfaces showed lower current densities during the potentiostatic polarization and lower corrosion depths when compared to the untreated surface. The nitrogen played a fundamental role in the passivation behavior and in the susceptibility to repassivation of localized corrosion.

The purposes of this study were to evaluate the effects of different preactivation bends on the force system and the mechanical stresses of beta-titanium T-loop orthodontic springs. A tridimensional T-loop spring finite element model was built aiming to obtain reactive forces and moments in the three directions (x, y and z) as well as the moment–force ratios (M/F) for the sagittal and occlusal planes considering different gable bends. Using a transducer designed to measure forces in the x- and y-axis and moment around the z-axis, experimental tests were performed to validate the numerical analysis. It was observed that F x increases as the angle between extremities increases. The F x magnitude changed from 0.2 to 2.0 N. F y forces presented very low magnitude while in z direction they were null. In the sagittal plane, decreasing the gable bends increases the M/F ratio. On the other hand, in the occlusal plane, no change in the M/F ratio values was observed with the variation of the gable bends. The results obtained from the analyses showed that the M/F ratio presented different values because of different preactivation bends formed between alpha and beta extremities, consequently different types of dental movement can be produced. In the occlusal plane, no movement tendency was observed while in the sagittal plane there was a movement tendency to produce uncontrolled tipping, controlled tipping, translation and finally root correction. Translation tendency was observed during deactivation starting at 5.0 mm without crown rotation.

The properties of the “nitrogen expanded ferrite” or αN phase have been scarcely studied to date. This phase was obtained here on a super ferritic stainless steel (SFSS) by plasma immersion ion implantation (PIII), which is a suitable technique to produce near to surface modifications on the Fe Cr alloys due to the control of energy delivered to the surface. The UNS S44400 SFSS, a special alloy developed for extreme corrosion environments, was nitrided by PIII at temperatures from 300 °C to 400 °C resulting in the αN phase as the main product of nitriding on the modified layer. The surface hardness measured by nanoindentation was investigated in the modified layers, reaching up to 3.5 times (the 400 °C condition) the hardness value presented by the untreated sample. The nitrided surfaces also presented improved corrosion resistance in comparison to the untreated sample, inferred by potentiodynamic polarization tests in NaCl electrolyte. This was evidenced by increased corrosion and pitting potentials (Ecorr and Ep, respectively) and decreased corrosion and passive current densities (icorr and ip, respectively). Moreover, through of the analysis in the polarization curves of the nitrided samples, a greater stability of the passive layer and repassivation processes were identified. The best corrosion resistance was obtained for the sample nitrided at 300 °C, which presented the greatest reduction in icorr and ip (6.6 μA/cm2 and 43 μA/cm2, respectively) and increase in Ecorr and Ep (108 mV and 214 mV, respectively), when compared to the untreated sample. In both untreated and nitrided samples, the addition of Nb and Ti in this alloy to prevent intergranular corrosion led to the formation of N- Ti-Nb-Mo precipitates that acted as initiators of pitting corrosion.

This work presents the application of Solution Heat Treatment after Plasma Nitriding (SHTPN) followed by requenching and tempering to the AISI 409 stainless steel aiming to increase hardness with no compromise of corrosion resistance. The SHTPN process consists of applying solution treatment to a previously plasma nitrided surface, promoting the dissolution of nitrides and the formation of a nitrogen-rich layer, in which nitrogen is in solid solution. When applied to ferritic stainless steels, SHTPN allows the obtention of a high‑nitrogen martensitic layer. It is presented an evaluation of the effects of requenching (from 950 and 1050 °C) and tempering (at 250, 450 and 650 °C) processes on the microstructure, hardness, and corrosion resistance of the nitrided layer of samples previously treated by SHTPN. Corrosion resistance was assessed through cyclic potentiodynamic polarization tests carried out in NaCl 0.5 mol/L, according to ASTM G150 . Optical and scanning electron microscopy, wavelength dispersive spectroscopy, and X-ray diffraction were applied to microstructural and phase characterization. Surface hardening was evaluated by Vickers microhardness tests. Results have shown that the requenching of SHTPN samples promoted a deepening of the nitrided layer and microstructure refinement. The process with requenching from 1050 °C and tempering at 250 °C led to increasing both hardness and corrosion resistance. These results confirmed that nitrogen in solid solution increases the hardness and the potential for pit nucleation in the AISI 409 stainless steel.

Compacted graphite iron is an interesting material class for automotive applications. CGI-450 grade cast iron was subjected to various surface treatments: plasma nitriding (PN), laser hardening (LH), and PN followed by LH (PN+LH). The resulting tribological behaviors were evaluated by means of linear scratch testing under progressive loading (40–70 and 70–95 N). The PN+LH treatment yielded the lowest friction coefficient and shallowest scratching. In this case, the outermost layer was composed of oxide phases (Fe2O3 and Fe3O4), underlain by a compound layer (oxides + nitrides + martensite) and a high-resistance martensitic layer with accompanying nitrides and carbides. These underlying layers provided high load capacity for the external layers, allowing them to function as solid lubricants.

RESUMO A adição de nitrogênio em aços inoxidáveis tem sido estudada como alternativa à produção de materiais que combinem boas propriedades mecânicas, resistência à corrosão e ao desgaste. Alguns métodos de enriquecimento de nitrogênio se respaldam em processos difusivos como nitretação a baixa e alta temperatura. Dentre estes, a nitretação seguida do Tratamento Térmico de Solubilização (NTTS), que consiste na realização de nitretação, com o objetivo de inserir o nitrogênio no material, seguido de um tratamento térmico de solubilização, que dissolve os nitretos, fazendo com que o nitrogênio se apresente em solução sólida intersticial. Neste trabalho aplicou-se o NTTS ao aço inoxidável martensítico ASTM CA-6NM. A nitretação a plasma foi realizada a uma temperatura de 630 °C por 3 horas e a solubilização em três diferentes condições (1200 °C por 30 minutos, 1200 °C por 1 hora e 1100 °C por 1 hora). As amostras foram analisadas através de difração de raios-x, microscopia ótica e medições de microdureza na região transversal da amostra. Foi verificado um aumento da dureza superficial dos aços CA-6NM, porém não foi observada a estabilização da fase austenita na região superficial mais rica em nitrogênio. O ensaio de cavitação foi realizado conforme norma ASTM G32/09, porém utilizando o método indireto, no qual a amostra não é fixada diretamente no sonotrodo. A região cavitada das amostras foi caracterizada através de microscopia eletrônica de varredura. Foi verificado que as amostras tratadas obtiveram menores taxas de erosão, e que houve diferença entre as diferentes condições de solubilização.

Plasma surface cleaning is an alternative process that aims at the fully removal of organic contaminants on several kinds of materials. Despite its advantages, there are still lacks on the comprehension of the complex relations between plasma-generated species and organic molecules during plasma cleaning. In the present work, a linear alkane (hexatriacontane - C36H74), used as a contaminant model, was exposed to an Argon radiofrequency (RF) inductively coupled plasma (ICP). The by-products from degradation were monitored by optical emission spectroscopy (OES) and residual gas analysis (RGA), to identify the influence of sample positioning on E and H discharge modes regions. The exposition to H-mode discharge resulted in more intense and profuse emissions of C-H and C2 systems. RGA results show similar byproducts from degradation in both modes; however, the intensity from treatment in H-mode is largely greater. It was also observed that plasma etching in H-mode is enough to melt the sample, while E-type discharge leaves the surface of the sample apparently unchanged.

Submitted by Thiago Pinho (pinho.thiago@hotmail.com) on 2021-05-07T13:38:54Z No. of bitstreams: 1 TESE ATUALIZADA.pdf: 1693916 bytes, checksum: 055d3108c742ae56574c1947f7cc5772 (MD5) Approved for entry into archive by Isaac Viana da Cunha Araújo (isaac.cunha@ufba.br) on 2021-05-12T03:20:47Z (GMT) No. of bitstreams: 1 TESE ATUALIZADA.pdf: 1693916 bytes, checksum: 055d3108c742ae56574c1947f7cc5772 (MD5) Made available in DSpace on 2021-05-12T03:20:47Z (GMT). No. of bitstreams: 1 TESE ATUALIZADA.pdf: 1693916 bytes, checksum: 055d3108c742ae56574c1947f7cc5772 (MD5) FABESB (Bolsa Doutorado) e CAPES (Sanduíche) A Teoria Social, enquanto um fluxo constante de palavras e práticas, sempre passou por transformações, ganhando novos contornos ao longo do tempo, assim como um rio ajusta seu curso dependendo da geografia do espaço. Sua face contemporânea é mais radical, intensa, muitas vezes até ácida, indo muito além do que Jeffrey Alexander chamou de novo movimento teórico, ultrapassando o simples compromisso de síntese de categorias. As transformações, ao menos recentemente, seguem um padrão descentrado, rizomático, sem aquela rigidez e centralidade que costumavam conduzir o percurso sociológico. O propósito dessa tese, toda ela costurada no formato de um ensaio, é compreender um pouco esse instante vivido pela Teoria Social Contemporânea, essa espécie de retomada teórica, ao perceber seus limites e suas implicações, recorrendo, ao mesmo tempo, às principais obras do sociólogo francês Bruno Latour, como “Irreductions”, tendo como background os escritos de Graham Harman e tantos outros representantes da OOO (Ontologia Orientada ao Objeto). “Irreductions”, na verdade, é um anexo do livro “Pasteurização da França”, publicado em 1984. Com suas 86 páginas, acompanhadas de um tom aforismático, muito próximo ao nietzschiano, Latour deixa transparecer o seu vínculo com a Teoria Social Alternativa (T.S.A), retomando figuras como Espinosa, Nietzsche, Deleuze, Whitehead, Gabriel Tarde e muitos outros. Como consequência dessa abertura epistemológica, da superação daquilo que Latour chamou de ciências transcendentais, uma pluralidade de instâncias de sentido começa a reivindicar terreno no campo sociológico, esse não mais sufocado por uma única cadeia de significação. Teoria Social, agora, deixa de ser apenas o estudo das interações humanas, ao abrir espaço para outras potencialidades (ou seriam virtualidades?), incluindo até mesmo seres inanimados, como mesas, notebooks, carros, etc. Social Theory, as a constant flow of words and practices, has always undergone transformations, gaining new contours over time, just as a river adjusts its course depending on the geography of space. Its contemporary face is more radical, intense, often even acid, going far beyond what Jeffrey Alexander called a new theoretical movement, going beyond the simple commitment to the synthesis of categories. The transformations, at least recently, follow a decentered and rhizomatic pattern, without the rigidity and centrality that used to guide the sociological path. The purpose of this thesis, all stitched together in the format of an essay, is to understand a little this instant lived by Contemporary Social Theory, this kind of theoretical resumption, by perceiving its limits and its implications, resorting, at the same time, to the main works of the French sociologist Bruno Latour, such as "Irreductions", having as background the writings of Graham Harman and many other representatives of OOO (Object-Oriented Ontology). "Irreductions" is actually an appendix to the book "Pasteurization of France", published in 1984. With its 86 pages, accompanied by an aphorismatic tone, very close to Nietzsche’s, Latour makes apparent his link with Alternative Social Theory (A.S.T), taking up figures such as Spinoza, Deleuze, Whitehead, Gabriel Tarde and many others. As a consequence of this epistemological opening, of the overcoming of what Latour called transcendental sciences, a plurality of instances of meaning begins to claim ground in the sociological field, no longer suffocated by a single chain of signification. Social Theory, now, is no longer only the study of human interactions, opening space for other potentialities (or would it be virtualities?), including even inanimate beings, such as tables, laptops, cars, etc.

Submitted by DIEGO PEREIRA (diego.pereira@enova.educacao.ba.gov.br) on 2018-11-22T19:55:47Z No. of bitstreams: 1 Dissertação - Diego Ramon Souza Pereira.pdf: 24228978 bytes, checksum: a92540089f8e3b3e55e65f5e541ee23a (MD5) Approved for entry into archive by Oliveira Santos Dilzaná (dilznana@yahoo.com.br) on 2018-11-23T18:31:36Z (GMT) No. of bitstreams: 1 Dissertação - Diego Ramon Souza Pereira.pdf: 24228978 bytes, checksum: a92540089f8e3b3e55e65f5e541ee23a (MD5) Made available in DSpace on 2018-11-23T18:31:36Z (GMT). No. of bitstreams: 1 Dissertação - Diego Ramon Souza Pereira.pdf: 24228978 bytes, checksum: a92540089f8e3b3e55e65f5e541ee23a (MD5) Compreender a realidade social e política do passado sempre é um desafio, ainda mais, quando você é docente da Educação Básica, e precisa contextualizar problemas contemporâneos através de fatos e acontecimentos do passado, que, inicialmente não teriam relação com a atualidade. Neste cenário, o cordel, potencialmente surge como um recurso didático que estreita estas duas esferas do social em uma única narrativa. Alicerçado neste mundo dos vocábulos, especialmente da letra cantada, oralizada, do cordel, que iniciei meus estudos de Mestrado, particularmente preocupado em entender a forma que estas narrativas escritas pelo grande Leandro Gomes de Barros (1865-1918, PB) interpretaram e retrataram as modificações sociais, culturais e políticas, advindas com a nascente República do nosso país. O que me levou ao seguinte problema norteador de pesquisa: Como a literatura de cordel ajuda a pensar os procedimentos modernos da Primeira República? Tendo, assim, por escopos: identificar as mudanças do sistema político, no período finissecular XIX, para entender as repercussões nos cordéis; analisar as representações presentes no cordel através do entrelaçamento do processo biográfico do literato popular, cordelista, com o contexto sociopolítico de produção da obra; analisar como o processo elaborativo do cordel imprime uma perspectiva popular de vivência do projeto de modernidade do nosso país. A partir disso foi constituído o corpus da pesquisa o qual foi montado através de cinquenta e seis cordéis digitalizados e posteriormente inseridos no software Atlas Ti., estas obras estão presentes no acervo da Fundação Casa de Rui Barbosa. Este corpus foi analisado com as técnicas fornecidas pela Análise de Conteúdo (AC) usando também a ferramenta das nuvens de palavras, resultante da incorporação e codificação do material no Atlas Ti. Esta pesquisa chegou à conclusão de que os cordéis produzidos pelo Leandro Gomes de Barros, retratam a voz do povo, e os anseios populares: acerca da carestia de vida, pagamento de impostos, aumento dos preços dos alimentos (elementos econômicos), da formação do exército nacional, do Brasil na I Guerra Mundial, aumento das leis e das prisões (fatores da soberania nacional e políticos) e, por fim, mas não menos importante, a presença do calçamento, dos profissionais liberais, dos jornais e do hábito de ler e da leitura (elementos de ordem das sociabilidades e de mutações da cidade). Este patrimônio cultural imaterial do nosso país, o cordel, conecta arte e realidade que transcende a ordem do tempo, do autor e das realidades. Understanding the social and political reality of past is always a challenge, still more, when you are a teacher of the High School Education, and precise to deal with contemporary problems through facts and events of the past which initially they would not have relation with the presente moment. In this scenery, the Cordel’s works potentially appear like an educational resource that narrows these two spheres of the social one in the only narrative. Based in this world of the words, specially of the sung letter, orally, of the Cordel’s work, that I began my studies of Master's degree, particularly preoccupied in understanding the form that these narratives, written by great Leandro Gomes de Barros (1865-1918, PB), interpreted and showed the social, cultural and political modifications resulted from the nascent Republic of our country. All of them lead me to the next problem aimed research: How the Cordel’s literature helps people to think the modern proceedings of the First Republic? Having as the principal following aims: identifying the changes of the political system of the 19th century period in order to understand their repercussions on the Cordel’s works; Analysing the present representations in the Cordel’s work through the interlacement of the biographical process of the popular man of letters, cordelista, with the context social policy of production of their work; analysing as the constructive process of the Cordel’s work prints a popular perspective of experiencing of the project of modernity of our country. Thus From those objectives the corpus of those researches were appointed which all of them were mounted through fifty six printed Cordels and later off they were subsequently inserted in the software Atlas Ti., Those works can be found in the heap of the Foundation House of Rui Barbosa. This corpus was analysed with the techniques supplied by the Analysis of Content (AC) using also the tool of the clouds of words, resultant force of the incorporation and codification of the material in the Atlas Ti. This inquiry came to the conclusion of which those Cordel’s works, which were produced by Leandro Gomes de Barros, show the voice of the people, and the popular longings: around the high cost of life, payment of taxes, increase of the prices of the foods (economical elements), of the formation of the national army of Brazil at World war I, increase of the laws and of the prisons (factors of the national sovereignity and political) and, finally, but not the least importante one, the presence of the paving, of the liberal professionals, of the newspapers, and the habit of reading and of the Reading itself (elements of order of the sociabilidades and of changes of the city). This immaterial cultural inheritance of our country, the Cordel’s work, connects art and reality that transcends the order of the time, of the author and of the reality.