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Renaudin, Mathieu. "A eficiência da tecarterapia em Fisioterapia: revisão bibliográfica." Bachelor's thesis, [s.n.], 2018. http://hdl.handle.net/10284/6722.
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Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciado em FisioterapiaIntrodução: a Tecarterapia (TECAR) tem sido utilizada como forma de recuperação e/ou de prevenção em disfunções neuro-musculo-esqueléticas. Objetivo: sumariar a literatura existente para verificar os efeitos da utilização da TECAR em fisioterapia, quer seja na sua utilização independente ou em comparação com outos tratamentos convencionais. Metodologia: pesquisa com palavras-chave na B-on, na base de dados Pubmed, e consulta de diferentes fontes bibliográficas, para identificar estudos publicados, experimentais ou observacionais, que abordassem a intervenção da TECAR em fisioterapia. Resultados: foram identificados 7 artigos que incluíram um total de 204 participantes de ambos os sexos, e com idades compreendidas entre 21 e os 85 anos. Após a implementação da TECAR constatou-se uma melhoria a curto prazo na redução da dor, edema, e uma melhoria da postura, autonomia, qualidade de vida, e da satisfação dos pacientes. Conclusão: a integração da TECAR na fisioterapia tem benefícios terapêuticos. Porém, considera-se necessário efetuar mais estudos e estudos randomizados controlados para avaliar a evidência da TECAR como ferramenta coadjuvante ao tratamento de fisioterapia.
Background: Tecartherapy (TECAR) has been used as a form of recovery and/or prevention in neuro-musculoskeletal disorders. Objective: to summarize the existing literature to verify the effects of the use of the TECAR in physiotherapy, whether in an independent utilization or in comparison with other conventional treatments. Methodology: research with keywords in B-on and Pubmed database, to consult different bibliographic sources, to identify published studies, experimental or observational, who approach the intervention of the TECAR in physiotherapy. Results: 7 articles were identified that included a total of 204 participants of both genders, aged between 21 and 85 years. After the implementation of the TECAR, there was a short-term improvement in pain reduction, edema, and improved posture, autonomy, quality of life, and patient satisfaction. Conclusion: the integration of TECAR in physiotherapy has therapeutic benefits. However, it’s considered necessary to carry out more studies and randomized controlled studies to evaluate the evidence of the TECAR as a supporting to the treatment of physiotherapy.
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Ragazzoni, Mattia. "Studio di un circuito ad alta efficienza in un apparato per terapie diatermiche." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8523/.
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Il lavoro presentato di seguito è volto al miglioramento delle prestazioni dell'apparato per la Tecar terapia prodotto da EME.srl. Tale apparato presenta, allo stato attuale, un sistema basato principalmente su circuiti a componenti attivi operanti in regione lineare che producono una oscillazione a 455kHz, la amplificano e infine la adattano alle caratteristiche richieste per tale apparato. Ampiezza dell'oscillazione e corrente sul carico (paziente) vengono controllate mediante un doppio sistema di retroazione: uno analogico e uno basato su microcontrollore. Entrambi i sistemi lavorano sui valori medi di tensione e corrente.
Lo scopo di tale elaborato è quello di migliorare tale apparato rendendo possibile il controllo di nuovi parametri, come la frequenza di oscillazione cosa non possibile nell'attuale implementazione.
Si valuterà, nell'ambito dell'attività di tesi, se mantenere l'idea costruttiva originale in cui si aveva un oscillatore autonomo con una cascata di amplificazione a efficienza non elevatissima, retroazionato analogicamente e un controllo mediante uC, oppure passare ad una nuova architettura totalmente gestita da uC sfruttando topologie utilizzate in altri macchinari di EME.srl con l'aggiunta di soluzioni tratte dal mondo delle energie rinnovabili.
Per lo studio di tale apparato verrà effettuata inoltre una caratterizzazione sperimentale del corpo umano utilizzando la mano di un soggetto volontario per avere un carico campione realistico e cercando ulteriori riscontri in letteratura.
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Distefano, Sebastiano. "A efetividade da Tecarterapia em distúrbios músculo-esqueléticos: uma revisão de literatura." Bachelor's thesis, [s.n.], 2020. http://hdl.handle.net/10284/9560.
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Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciado em FisioterapiaIntrodução: A TECAR é uma recente tecnologia com fins terapêuticos que está ser sempre mais utilizada como um valido incremento aos tratamentos tradicionais. Objetivo: Realizar uma revisão de literatura, de modo a analisar os outcomes de reabilitação realizada só com TECAR, combinada ou comparada com outras técnicas convencionais em pacientes com condições de tipo musculo-esqueletico. Metodologia: A pesquisa computorizada foi feita com palavras-chave nas bases de dados Pubmed, Web of Science, EBSCO, no motor de busca Google Scholar e consulta de diferentes fontes bibliográficas, para identificar estudos randomizados controlados que avaliassem os efeitos isolados da TECAR e/ou combinados com outras técnicas em tratamentos fisioterápicos. A estratégia de pesquisa seguiu o fluxograma PRISMA. Resultados: Nesta revisão de literatura foram incluidos 6 artigos que incluíram um total de 224 participantes de ambos os sexos. Conclusão: Podemos concluir que a implementação da TECAR aos tratamentos convencionais resultou bastante, no entanto, nos vários estudos envolvidos, não foi analizada a questão do preço por cada sessão de tratamento e/ou eventuais efeitos segundarios relativos ao utilização da TECAR.
Background: TECAR is a recent technology for therapeutic purposes that is being used more and more as a valid enhancement to traditional treatments Objective: To carry out a literature review in order to analyze the results of rehabilitation performed only with TECAR, combined or compared with other conventional techniques in patients with musculoskeletal conditions. Methodology: The computerized search was done with keywords in the databases Pubmed, Web of Science, EBSCO, in the Google Scholar search engine and consultation of different bibliographic sources, to identify randomized controlled studies that evaluated the isolated effects of TECAR and/or combined with other techniques in physiotherapy treatments. The research strategy followed the PRISMA flowchart. Results: In this literature review, 6 articles were included that included a total of 224 participants of both genders. Conclusion: We can conclude that the implementation of TECAR to conventional treatments has resulted a lot, however, in the various studies involved, the question of price for each treatment session and / or any secondary effects related to the use of TECAR has not been analyzed.
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Liu, Haixia. "Understanding tear breakup." [Bloomington, Ind.] : Indiana University, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3331277.
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Thesis (Ph.D.)--Indiana University, School of Optometry, 2008.Title from PDF t.p. (viewed on Jul 27, 2009). Source: Dissertation Abstracts International, Volume: 69-11, Section: B, page: 6715. Adviser: Carolyn G. Begley.
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Mendes, Luciana Corts. "Do tecer do algodão ao tecer da informação: organizando a explosão informacional do século XIX." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/27/27151/tde-26052015-114408/.
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Analisa os objetivos e propostas de organização da informação desenvolvidos pelo Movimento Bibliográfico e indica sua influência na Ciência da Informação. Esta pesquisa de natureza exploratória, realizada através de levantamento, revisão e análise bibliográficos, investiga o pensamento de Paul Otlet, Wilhelm Ostwald, H. G. Wells, John Cotton Dana e Watson Davis, expoentes do Movimento Bibliográfico, no contexto da modernidade. O Movimento Bibliográfico caracterizava-se por sua pluralidade e buscava responder às alterações no mundo informacional decorrentes da modernidade. O movimento atribuía à informação a potencialidade de transformação dos indivíduos e, portanto, transformou o foco dos serviços de informação da preservação para o acesso, procurando organizar acervos em função de seus conteúdos. O desenvolvimento tecnológico contemporâneo ao movimento fez com que seus expoentes enfatizassem a aplicação de novas tecnologias ao processo de disseminação da informação, pois entendiam que este seria facilitado e agilizado. A Ciência da Informação herdou seu papel social parcialmente do Movimento Bibliográfico, objetivando a organização da informação para seu acesso, e compartilha com o movimento a perspectiva de emprego de alta tecnologia na disseminação da informação. O espírito do tempo no qual se originou o Movimento Bibliográfico levou ao aparecimento de um ideário comum que permitiu a elaboração de propostas similares, entretanto, não se descarta a influência mútua entre os indivíduos analisados na pesquisa. Apesar de sua especificidade histórica, o Movimento Bibliográfico compartilha com a Ciência da Informação o ideário informacional moderno e a relação deste com a cultura. Conclui-se que a cultura da informação contemporânea e aquela do movimento pesquisado apresentam diferenças, porém são culturas que se entrelaçam; muitos de seus problemas sendo semelhantes e necessitando soluções similares.Analyses the objectives and proposals of information organisation developed by the Bibliographic Movement, and indicates its influence in Information Science. This exploratory research, accomplished through bibliographic survey, literature review, and analysis, investigates in the context of modernity the ideas of Bibliographic Movement exponents Paul Otlet, Wilhelm Ostwald, H. G. Wells, John Cotton Dana, and Watson Davis. The Bibliographic Movement was characterized by its plurality, and aimed to respond to modernity\'s effects in the information world. The movement attributed to information the potentiality of individual transformation. Therefore, it changed the focus of information services from preservation to access, and pursued the organisation of collections according to its contents. The development of technology made the Bibliographic Movement exponents emphasise the application of new technologies to the process of information dissemination in order to facilitate and accelerate it. Information Science inherited its social role partially from the Bibliographic Movement, and aims at organising information so that it can be accessed. Information Science also shares with the movement the perspective of employing high technology to disseminate information. The Zeitgeist that gave rise to the Bibliographic Movement led to a common set of ideas and allowed the elaboration of similar proposals for the organisation of information. However, it is not discarded the probability of mutual influence between the individuals analysed. Despite its historical specificity the Bibliographic Movement shares with Information Science modern ideas and its relation to culture. It is concluded that the current information culture and the information culture of the Bibliographic Movement have differences, notwithstanding, they are entwined cultures and many of their problems are similar and need similar solutions
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Willshire, Catherine. "Tear dynamics : tear osmolarity and reflex features of the lacrimal functional unit." Thesis, Anglia Ruskin University, 2017. http://arro.anglia.ac.uk/704072/.
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The focus of this thesis is tear dynamics and the regulation of tear secretion by the Lacrimal Functional Unit (LFU), a collection of functions that control tear secretion and maintain a healthy ocular surface. Tear secretion was assessed with the Schirmer test and tear osmolarity (tOsm), in standardised environmental conditions achieved using a controlled environment chamber (CEC). The experiments involved normal and dry eye disease (DED) subjects, including Sjögren Syndrome DED. A novel approach to sheathing the Schirmer strip was tested for the first time in a regulated range of relative humidities achieved in the CEC. This was designed to highlight an artefact of measurement, and free the test from its dependence on ambient conditions. A period of evaporative suppression, achieved innovatively by eye closure, was shown to drive tOsm down, in normal and DED subjects, to a basal level that fell within the range of plasma osmolarity. This basal tear osmolarity value could be used as a non-invasive measure of systemic dehydration, particularly of use in a care home setting and as a reference against which to gauge the severity of DED in an individual. Using the sheathed Schirmer strip the existence of _cross-connections' in humans was investigated for the first time using unilateral anaesthesia in an attempt to answer the question of whether afferent corneal inputs from one eye may have some influence on the lacrimal output of the fellow eye. Previously only studies involving animals had reported positive findings in this area. The relative contributions of each eye to the reflex tear response are relevant in unilateral trigeminal sensory loss cases since sensory input from the healthy eye could reinforce tear secretion of the affected fellow eye. Lastly, an experiment was designed to strengthen our understanding of the mechanism of the LFU in providing a compensatory response in desiccating conditions. This approach differed from previous studies as it included both normal and DED subjects and involved creating a sensory blockade using topical anaesthesia to increase the stress level experienced by the LFU.
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Dal, Molin Beatriz Helena. "Do tear à tela." Florianópolis, SC, 2003. http://repositorio.ufsc.br/xmlui/handle/123456789/85722.
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Tese (doutorado) - Univesidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.Made available in DSpace on 2012-10-20T22:10:36Z (GMT). No. of bitstreams: 1 199829.pdf: 9039363 bytes, checksum: 150253bfb26723077c36e61c6be5858b (MD5)
A tese denominada Do Tear à Tela uma tessitura de linguagens e sentidos para o processo de aprendência aponta para um fazer pedagógico em cujo contexto a tecnologia e a linguagem, em suas mais variadas formas de expressão, são elementos estruturantes da cognição e da subjetividade. Um fazer no qual a totalidade pode ser vista, apreendida, reordenada de forma mais ampla e significativa. Realiza experiências voltadas para as articulações possíveis entre a tecnologia de Comunicação Digital e a linguagem, procurando, em relação a essa última, abarcar, pela exploração de seu potencial, as várias dimensões em que se constitui, bem como entre os sentidos produzidos em seu emprego em sala de aula, entrelaçando nessa tessitura palavras, imagens, formas, cores, sons, movimento, multimídia, ciberespaço como caminhos possíveis à condução de novas práticas de Aprendência no espaço educacional da cibercultura aberta para a pluralidade de sentidos. Repensa o fazer pedagógico como o espaço onde as novas relações simbólicas entre sujeitos, instituições de ensino e sociedade devem ser redimensionadas a partir da atuação interativa entre humanos e não-humanos. Apresenta ainda aplicativos pedagógicos produzidos com base neste outro modo do fazer pedagógico realizado como pesquisa-ação no Laboratório de Novas Tecnologias (LANTEC) da UFSC, como também o exercício do entrelaçamento entre o discurso científico, o discurso da pesquisadora e o discurso proferido pelos aprendentes durante as vivências educativas das quatro turmas de Tecnologia de Comunicação Digital e Transposição Didática (TCD) no lócus virtual real do Atelier que se atualizou e se atualiza cotidianamente no LANTEC e na vida de cada aprendente.
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Cariou, Luc. "La fracture Tear drop." Bordeaux 2, 1996. http://www.theses.fr/1996BOR23048.
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Tesar, David. "Evolution of life-histories in stochastic environments : Cole's paradox revisited." Helsinki : University of Helsinki, 2000. http://ethesis.helsinki.fi/julkaisut/mat/ekolo/vk/tesar/.
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Varikooty, Jalaiah. "Ocular Discomfort Upon Tear Drying." Thesis, University of Waterloo, 2003. http://hdl.handle.net/10012/1239.
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Purpose: Assess the relationship between tear film drying and sensation between blinks. Methods: MATLAB sampled a slitlamp video camera, a potentiometer and a microphone while subjects kept one eye open for as long as possible. 23 subjects rated the intensity of the ocular sensation while video and voice data were collected simultaneously. The tear drying on the cornea was measured. Results: The sensation was triphasic. Two linear functions described the latter 2 parts of the data (r ≥ 0. 95). The correlation between TBUT and the elbow in the time-discomfort function was 0. 72. Extent of tear film drying was linearly correlated to time (median correlation = 0. 88). The correlation between the discomfort elbow and image elbow was 0. 93 with single data pair for each subject. Analysis of sensation characteristics showed significant differences between itching and burning for both intensity and time (p = 0. 03 and p = 0. 02 respectively). Conclusions: Simultaneous recording of ocular surface appearance, discomfort intensity and attributes of sensation provide novel information about the development of discomfort during ocular surface drying. The rapid increase in discomfort proceeding blinking has been quantified and the relationship between the time course of drying and discomfort is elucidated.
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Samsuri, A. B. "Tear strength of filled rubbers." Thesis, London Metropolitan University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234798.
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Rodrigues, Erika [UNESP]. "Olhar tecer des: (cor)pos forças fluxos." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/90124.
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Entre a voracidade incontrolável que cavouca fissuras na escrita, as muitas vozes sobrepostas nas leituras dos autores e a euforia no espanto da infância, se faz este estudo. Entre os inquietos e incapturáveis movimentos que arremessam a escrita em fluxos que pulsam fora das linhas e as perguntas disparadas, (re)inventadas e embaralhadas na (co)mposição de espaços no cotidiano escolar. No palpitar dos interstícios em que cintilam vislumbramentos, a escrita se transmuta ao cair vertiginosamente nos labirintos cujas reconfigurações não cessam de se desfazerem, nos contágios de um olhar sem face, mudo, à espreita, no qual a pupila se expande e, ao mesmo tempo, se contrai, atraindo e expulsando as imagens para o assombro da cegueira em que irrompem visões de um olho cego, olhar cuja pupila desgovernada bailarina as confusões de uma menina festejando a desorganização dos corpos, pupila que invade todo o corpo e, na escuridão, vive as nervuras do abismo que atrai para fora, no fascínio das forças em que não há margens, não há rotas e não há rostos. No desfazimento dos rostos, o corpo se (re)inventa em cores e carícias, na feitura de cor(pos) em festa, corpos ex espelho-água-vidro, na delicadeza acqua corpo, em corpos nuvens que redobram e invertem em chão-céu o pátio da escola e tocam as distâncias intransponíveis do universo, translucidez azul de corpos que fluem em um rio sem fim, corpos que não se conformam ao esquadrinhamento das funções e localizações do organismo, não se enquadram à formatação de sujeitos e não se detém aos contornos dos papéis. Nas tentativas de recriar corpos-outros são disparados pensamentos que se acercam dos deslimites de um corpo na tensão dos fluxos intermitentes que se esvaem, deixando o rastro das intensidades que se apossam dos corpos e das escritas...
Between the uncontrollable voracity that digs crevices in the written word, the many overlapping voices in the readings of the authors and the euphoria in the wonders of childhood, over which this study was done. Between the restless and untraceable movements that throw the written word in a flow that pulsates outside the lines and the discharged questions, (re)invented and mixed in the (co)mposition of spaces in everyday school life. In the beat of the interstices in which glimpses sparkle, the written word transmutes when it plummets in the labyrinths whose reconfigurations do not cease to undo themselves, in the contagions, of a look without a face, mute, lurking, in which the pupil expands and at the same time contracts, attracting and expelling the images to the fright of the blindness in which visions erupt from a blind eye, the look whose out of control pupil dances the confusions of a girl celebrating the disorganization of the bodies, the pupil that invades the whole body and, in the darkness, lives the veins of the abyss that attracts to the outside, in fascination of the forces in which there are no margins and there are no routes and there are no faces. In the undoing of the faces, the body (re)invents itself in colors and strokes, in the making of bodies partying, bodies ex mirror-water-glass, in delicateness acqua body, in cloud bodies that contort and reverse into ground-sky the courtyard of the school and they touch the unreachable distances of the universe, blue translucency of bodies that flow in an endless river, bodies that do not abide by the framework of the functions and the locations of the organism, they do not fit into the formatting of subjects and are not limited by the outline of the paper. In the attempts of recreating other-bodies are discharged thoughts that come close to the vastness of a body in tension... (Complete abstract click electronic access below)
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Rodrigues, Erika. "Olhar tecer des : (cor)pos forças fluxos /." Rio Claro, 2012. http://hdl.handle.net/11449/90124.
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Orientador: Marilena Aparecida Jorge Guedes de CamargoBanca: Romualdo Dias
Banca: Eduardo Anibal Pellejero
Resumo: Entre a voracidade incontrolável que cavouca fissuras na escrita, as muitas vozes sobrepostas nas leituras dos autores e a euforia no espanto da infância, se faz este estudo. Entre os inquietos e incapturáveis movimentos que arremessam a escrita em fluxos que pulsam fora das linhas e as perguntas disparadas, (re)inventadas e embaralhadas na (co)mposição de espaços no cotidiano escolar. No palpitar dos interstícios em que cintilam vislumbramentos, a escrita se transmuta ao cair vertiginosamente nos labirintos cujas reconfigurações não cessam de se desfazerem, nos contágios de um olhar sem face, mudo, à espreita, no qual a pupila se expande e, ao mesmo tempo, se contrai, atraindo e expulsando as imagens para o assombro da cegueira em que irrompem visões de um olho cego, olhar cuja pupila desgovernada bailarina as confusões de uma menina festejando a desorganização dos corpos, pupila que invade todo o corpo e, na escuridão, vive as nervuras do abismo que atrai para fora, no fascínio das forças em que não há margens, não há rotas e não há rostos. No desfazimento dos rostos, o corpo se (re)inventa em cores e carícias, na feitura de cor(pos) em festa, corpos ex espelho-água-vidro, na delicadeza acqua corpo, em corpos nuvens que redobram e invertem em chão-céu o pátio da escola e tocam as distâncias intransponíveis do universo, translucidez azul de corpos que fluem em um rio sem fim, corpos que não se conformam ao esquadrinhamento das funções e localizações do organismo, não se enquadram à formatação de sujeitos e não se detém aos contornos dos papéis. Nas tentativas de recriar corpos-outros são disparados pensamentos que se acercam dos deslimites de um corpo na tensão dos fluxos intermitentes que se esvaem, deixando o rastro das intensidades que se apossam dos corpos e das escritas... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Between the uncontrollable voracity that digs crevices in the written word, the many overlapping voices in the readings of the authors and the euphoria in the wonders of childhood, over which this study was done. Between the restless and untraceable movements that throw the written word in a flow that pulsates outside the lines and the discharged questions, (re)invented and mixed in the (co)mposition of spaces in everyday school life. In the beat of the interstices in which glimpses sparkle, the written word transmutes when it plummets in the labyrinths whose reconfigurations do not cease to undo themselves, in the contagions, of a look without a face, mute, lurking, in which the pupil expands and at the same time contracts, attracting and expelling the images to the fright of the blindness in which visions erupt from a blind eye, the look whose out of control pupil dances the confusions of a girl celebrating the disorganization of the bodies, the pupil that invades the whole body and, in the darkness, lives the veins of the abyss that attracts to the outside, in fascination of the forces in which there are no margins and there are no routes and there are no faces. In the undoing of the faces, the body (re)invents itself in colors and strokes, in the making of bodies partying, bodies ex mirror-water-glass, in delicateness acqua body, in cloud bodies that contort and reverse into ground-sky the courtyard of the school and they touch the unreachable distances of the universe, blue translucency of bodies that flow in an endless river, bodies that do not abide by the framework of the functions and the locations of the organism, they do not fit into the formatting of subjects and are not limited by the outline of the paper. In the attempts of recreating other-bodies are discharged thoughts that come close to the vastness of a body in tension... (Complete abstract click electronic access below)
Mestre
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Pretto, Zuleica. "Como tecer a mais antiga/contemporânea trama." Florianópolis, SC, 2003. http://repositorio.ufsc.br/xmlui/handle/123456789/85937.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em Psicologia.Made available in DSpace on 2012-10-21T01:29:07Z (GMT). No. of bitstreams: 0
A centralidade que o amor ocupa no cotidiano de homens e mulheres é inegável, o que não impede que seja considerado um mistério perante o qual se sentem impotentes. O cenário amoroso é marcado por impasses, desencontros, insatisfação e sofrimento, evidenciados pelo alto número de separações e pela elevada procura por psicoterapia visando resolver problemas amorosos. Neste trabalho, será considerada a existência de um campo de possibilidades delineado historicamente que serve como mediação e, assim, de padronização de experiências e significações amorosas, entre eles, padrões de gênero hegemônicos, noções idealistas e noções modernas de amor. A partir disso, foi pretendido, através de entrevistas, comprender como tais significações foram apropriadas e singularizadas por um grupo de homens jovens universitários. A análise encarregou-se de localizar as mediações ideológicas e as particularidades expressas em suas concepções. Para nortear a análise foram adotados apoios teóricos provindos de uma perspectiva sartreana, associada a uma abordagem de gênero. Percebeu-se que há mesclas de ideologias no movimento amoroso vivido dos sujeitos. Fica claro que instituir novas formas de amar, ao mesmo tempo que é um desejo, exige a superação de aprendizagens tradicionais, as quais nem sempre são percebidas pelos sujeitos.
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Lin, Andrew. "Patient-specific thoracic endovascular aoratic repair (TEVAR)." Master's thesis, Faculty of Health Sciences, 2019. http://hdl.handle.net/11427/31136.
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Endovascular aortic repair (EVAR) is a minimally invasive procedure to treat aortic aneurysms. Current off-the-shelf devices may not fit the patient perfectly, potentially increasing the chance of post-operative complications. This project aims to provide proof of concept for rapidly creating inexpensive patient-specific EVAR stent-grafts, conforming to the unique anatomy of the patient. After investigating the range of electrospinning shape capabilities on idealised stent-graft geometries (straight, tapered, elliptical, and curved), CT scans was used to create blood and aortic models of an abdominal aortic aneurysm. The former was used to design a patientspecific stent-graft geometry, 3D print a conductive electrospinning mandrel, and electrospin (290 mm, +18 kV, -3 kV, 5 ml/hr, 5 mm/s, 750 rpm) Polyurethane (PU). Sinusoidal Nitinol reinforcement segments were subsequently incorporated into the graft. Various geometries were successfully spun. Electrospun PU scaffolds had a mean ultimate tensile strength of 7.3 MPa, mean Young’s Modulus of 1.9 MPa, and a mean maximum strain of 571%. Fibre morphology analysis showed a mean orientation index of 0.25 (750 rpm) and 0.35 (1000 rpm), mean fibre diameter of 2.3 µm, and a mean pore size of 7.5 µm; pore size indicates possibility of endothelialisation. Nitinol reinforced patient-specific graft was successfully made and stent-grafts of various stent patterns had radial forces between 1.3 to 5.8 N (comparable to 2.8 N from a commercial example). FEA simulation highlighted various advantages of customised stent-grafts that conform to the anatomy over standard cylindrical devices such as better seal and contact traction. Simulation results (25 mm Ø, cylindrical, electrospun stent-graft) showed close approximations to experimental results; its use for future stent-graft design optimisations is promising. Mock insertion of an electrospun patient-specific stent-graft was performed in a 3D-printed transparent-PLA hollow aortic model with good conformity, albeit subpar visibility without a backlight and inflexibility. Although further improvements can be made to the individual steps, proof of principle was achieved. This process is very promising for the manufacturing of patient-specific devices that could offer better long term outcomes.
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Primeau, Brian Christopher. "INTERFEROMETRIC CHARACTERIZATION OF TEAR FILM DYNAMICS." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/202971.
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The anterior refracting surface of the eye is the thin tear film that forms on the surface of the cornea. When a contact lens is on worn, the tear film covers the contact lens as it would a bare cornea, and is affected by the contact lens material properties. Tear film irregularity can cause both discomfort and vision quality degradation. Under normal conditions, the tear film is less than 10 microns thick and the thickness and topography change in the time between blinks. In order to both better understand the tear film, and to characterize how contact lenses affect tear film behavior, two interferometers were designed and built to separately measure tear film behavior in vitro and in vivo. An in vitro method of characterizing dynamic fluid layers applied to contact lenses mounted on mechanical substrates has been developed using a phase-shifting Twyman- Green interferometer. This interferometer continuously measures light reflected from the surface of the fluid layer, allowing precision analysis of the dynamic fluid layer. Movies showing this fluid layer behavior can be generated. The fluid behavior on the contact lens surface is measured, allowing quantitative analysis beyond what typical contact angle or visual inspection methods provide. The in vivo interferometer is a similar system, with additional modules included to provide capability for human testing. This tear film measurement allows analysis beyond capabilities of typical fluorescein visual inspection or videokeratometry and provides better sensitivity and resolution than shearing interferometry methods. The in vitro interferometer system has measured the formation and break up of fluid layers. Different fluid and contact lens material combinations have been used, and significant fluid layer properties have been observed in some cases. This dissertation discusses the design of this interferometer along with analysis methods used. Example measurement results of different contact lens are presented highlighting the capabilities of the instrument. This dissertation also provides the in vivo interferometer design, along with the considerations that must be taken when designing an interferometer for on-eye diagnostics. Discussions include accommodating eye movement, design of null optics for a range of ocular geometries, and laser emission limits for on-eye interferometry in general.
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Mengher, Lakhbir Singh. "Tear assessment of the dry eye." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.258016.
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Esmaeelpiur, Marieh. "Infant tear film collection and composition." Thesis, Cardiff University, 2006. http://orca.cf.ac.uk/56162/.
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The aim of this thesis was to enable collection and examination of the infant tear film. Therefore a new collection method was developed and applied. Different absorbent materials were tested for the best extraction quality and a suitable material selected for sample storage, sterilisation and for protein analysis. Cellulose rods were the ideal choice and were compared to glass capillary tubes, which are the standard collection method for adult tears. In adults, tear collection with cellulose rods was efficient and no difference in the mean total and major protein concentrations was found (Bradford test and gel electrophoresis). Safety of the technique was assessed by measuring the serum albumin concentration in the tears. Samples did not show damage to the ocular surface by serum leakage. When applied to premature and full-term infants, the cellulose rod successfully collected samples and was a suitable and sensitive technique for measuring the protein content and concentration for total and major protein assays. It was shown that sample volume sizes increased with post- conceptional age. In contrast to adult tears, no relationship between tear volume and protein analysis was found. However, similar to adult tear proteins a relationship with closed and open eye tears was found. In addition, tear ferning showed mainly grades that indicate a healthy tear film. In a pilot study, the cellulose rod was applied to a small number of paediatric contact lens wearers. Tear collection, transport from the clinical location to the laboratory and analysis of tear samples were successfully carried out. Higher numbers of subjects are necessary for conclusive data analysis.
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Coutinho, Maria Clara da Gama Cabral. "Tecer cotidianos, tecendo rebeldias : narrativas femininas sobre EJA." Universidade do Estado do Rio de Janeiro, 2012. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=5447.
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Esta dissertação surgiu a partir do desejo de contar a minha experiência como professora de Educação de Jovens e Adultos, como eu a vivi, o que aprendi e o que ainda quero descobrir. É nesta medida que, através deste trabalho, pesquisei e ouvi os relatos dos professores, pensando em suas práticas cotidianas, suas subjetividades e suas relações com os conteúdos escolares e com os saberes dos alunos, buscando identificar práticas emancipatórias em seus processos educativos cotidianos. As vozes dos alunos, tornam-se audíveis também, através das narrativas de suas vivências, que permitem, também, identificar atividades emancipatórias em meio aos seus processos de aprendizagem. Narrativas de alunos e narrativas de professores se entrelaçam criando uma trama da memória cotidiana, sobre a qual Nilda Alves (2008) chama a atenção por ser uma narrativa não linear e sujeita a diversas interrupções e introduções de outras histórias paralelas. Dessa forma, busquei fazer um entrelaçamento entre narrativas de professores e alunos, procurando tecer uma rede a partir da narrativa da vida e da literaturização da ciência.This thesis came from the desire to tell my experience as an Education of Young and Adults teacher, how I lived it, what i learned and what I still want to discover. To that end, I have researched and heard the testimonies od the teachers, thinking about their daily work, their subjectivities and their relationships with school contents and with the knowledge of the students, looking to identify emancipatory practices in their daily educational processes. The students' voices also become audible, through the narrative of their experiences, which allows us to identify emancipatory activities in the midst of their learning processes. The narratives of both students and teachers connect weaving a web of daily memory, highlighted by Nilda Alves (2008) for being a non-linear narrative susceptible to various interruptions and introductions od other parallel stories. This way, I tried to make an intersection between narratives of teachers and students, looking to weave a web based on the narrative of life and the literarization of science.
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Delmadi, Leila Cristiane. "Tectona grandis L.f.: patologia de frutos, patogenicidade e epidemiologia." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/152751.
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A espécie florestal Tectona grandis (Teca) é nativa do sudeste asiático, possui grande porte, rápido crescimento, produtora de madeira nobre e valorizada por sua beleza, resistência e durabilidade. No Brasil, surgiu como uma alternativa substituta a outras espécies, como o mogno (Swietenia macrophylla) e a cerejeira (Torresea acreana). A presente pesquisa teve como objetivo investigar a condição fitossanitária da teca em frutos e, testar a resistência de três diferentes clones à doenças fúngicas. Os objetivos específicos foram: i) avaliar frutos de teca de 3 procedências (Alta Floresta/MT, Cáceres/MT e Botucatu/SP) quanto a presença de patógenos; ii) testar a resistência de 3 clones (S0, S1 e S3) de T. grandis aos patógenos: Olivea tectonae, Fusarium oxysporum e Ceratocystis fimbriata em condições controladas; iii) elaborar uma escala diagramática com folhas adultas de T. grandis, para avaliação da ferrugem causada pelo fungo O. tectonae; iv) testar a resistência de 3 clones de teca (S0, S1 e S3) à doenças fúngicas em plantio de campo. Os experimentos foram conduzidos no Laboratório de Patologia Florestal - FCA/UNESP-Botucatu e também na Fazenda Experimental da UNESP em São Manoel/SP. Como resultados para o teste com frutos, obteve-se: Procedência Alta Floresta/MT, 13,33% de Aspergillus sp.; 3,33% de Colletotrichum sp. e Alternaria sp.; 1,66% de Septoria sp. e Penicillium sp.. Para os frutos procedentes de Cáceres/MT, 61,66% para o patógeno Fusarium sp., 8,33% com Penicillium sp., 1,66% com Arthrosporium sp. e Cunninghamella sp. Quanto a procedência Botucatu/SP, 21,66% com Aspergillus sp., 23,33% com Alternaria sp., 8,33% com Fusarium sp., 10% com Penicillium sp., 5% para Nigrospora sp. e 3,33% com Ovularia e Humicola. O experimento em condições controladas, com o fungo Olivea tectonae foi realizado com a pulverização de uma suspensão de esporos em concentração de 2,42 x 105 urediniósporos/mL-1. Observou-se que o período latente foi de 5 dias e, na análise de severidade o clone S0 apresentou um número de 59,4 pústulas/3cm², S1 com 86,6 e S3 com 88,1 pústulas/3cm². A inoculação dos fungos Fusarium oxysporum e Ceratocystis fimbriata foi feita com a introdução de um disco de cultura micelial em uma abertura feita no caule da planta a 10 cm do colo. Com a inoculação do F. oxysporum os resultados médios das lesões encontradas no caule, foram: S0 com 8,25 cm, S1 com 8,77 cm e S3 com 11,25 cm de lesão. Já com a inoculação do C. fimbriata as médias das lesões se deram, conforme segue: S0 com 13,2 cm, S1 com 15,3 cm e S3 com 14,8 cm de lesão. Não houve diferença significativa entre as médias nos clones testados. Para a elaboração da escala diagramática, foram determinados 7 níveis de severidade em função da distribuição da amostra para as folhas adultas (N0 = 0%; N1 = 2,5%; N2 = 5%; N3 = 10%; N4 = 20%; N5 = 40% e N6 = 80%). Com a adoção da escala proposta, a totalidade dos avaliadores apresentou melhor precisão, com R² = 0,93 em comparação ao resultado obtido sem o uso da escala (R² = 0,88). O plantio em campo se deu com a introdução de 4.274 mudas de teca, divididas em 3 clones distintos (S0, S1 e S3). Foram identificadas as doenças fúngicas com ocorrência natural, ferrugem e cancro, causadas respectivamente, pelos fungos: O. tectonae e Neofusiccocum parvum. Não houve diferença estatística entre os clones para nenhum dos patógenos avaliados. Conclui-se com isso, que nas condições em que foi instalado o experimento, os clones testados não apresentaram resistência horizontal as doenças acima descritas.
The forest species Tectona grandis (Teak) is native to Southeast Asia, has large, rapidly growing producer of noble wood and valued for its beauty, strength and durability. In Brazil, it emerged as a replacement alternative to other species, such as mahogany (Swietenia macrophylla) and Cherry tree (Torresea acreana).The present research had as objective to investigate the phytosanitary condition of teak fruits and to test the resistance of three different clones to fungal diseases. The specific objectives were: i) to evaluate teak fruits from 3 provenances (Alta Floresta/MT, Cáceres/MT and Botucatu/SP) in the presence of pathogens; ii) to test the resistance of 3 clones (S0, S1 and S3) of T. grandis to pathogens: Olivea tectonae, Fusarium oxysporum and Ceratocystis fimbriata under controlled conditions; iii) to elaborate a diagrammatic scale with adult leaves of T. grandis, to evaluate the rust caused by the fungus O. tectonae; iv) to test the resistance of 3 teak clones (S0, S1 and S3) to fungal diseases in field planting. The experiments were conducted at the Laboratory of Forest Pathology - FCA/UNESP/Botucatu and also at the experimental farm of UNESP in São Manoel/SP. As results for the fruit test, we obtained: Provenance Alta Floresta/MT, 13.33% of Aspergillus sp.; 3.33% of Colletotrichum sp. and Alternaria sp.; 1.66% of Septoria sp. and Penicillium sp.. For fruits from Cáceres/MT, 61.66% for the pathogen Fusarium sp., 8.33% with Penicillium sp., 1.66% with Arthrosporium sp. and Cunninghamella sp. As for Botucatu/SP, 21.66% with Aspergillus sp., 23.33% with Alternaria sp., 8.33% with Fusarium sp., 10% with Penicillium sp., 5% for Nigrospora sp. and 3.33% with Ovularia and Humicola. The control under controlled conditions with fungus Olivea tectonae was carried out by spraying a suspension of spores in a concentration of 2,42 x 105 uredynopores/ml-1. It was observed that the latent period was 5 days and in the severity analysis clone S0 presented a number of 59,4 pustules/3cm², S1 with 86,6 and S3 with 88.1 pustules/3cm². The inoculation of fungi Fusarium oxysporum and Ceratocystis fimbriata was made with the introduction of a mycelial culture disc into an opening made in the plant stem at 10 cm from the colon. With the inoculation of F. oxysporum the average results of the lesions found in the stem were: S0 with 8,25 cm, S1 with 8,77 cm and S3 with 11,25 cm of lesion. With the inoculation of C. fimbriata, the mean of the lesions were as follows: S0 with 13,2 cm, S1 with 15,3 cm and S3 with 14,8 cm of lesion. There was no statistical difference between the clones tested. For the elaboration of the diagrammatic scale, 7 levels of severity were determined as a function of the sample distribution for the adult leaves (N0 = 0%, N1 = 2,5%, N2 = 5%, N3 = 10%, N4 = 20%, N5 = 40% and N6 = 80%). With the adoption of the proposed scale, all the evaluators presented better accuracy, with R² = 0,93 compared to the result obtained without the use of the scale (R² = 0,88). Field planting occurred with the introduction of 4.274 teak seedlings, divided into 3 distinct clones (S0, S1 and S3). Fungal diseases with natural occurrence, rust and cancer, caused respectively by fungi: O. tectonae and Neofusiccocum parvum. There was no statistical difference between the clones for any of the evaluated pathogens. It was concluded that, under the conditions in which the experiment was installed, the clones tested did not show horizontal resistance to the diseases described above.
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Pereira, Mariana Pinto Leitão. "Pesos e tear e elementos de tear na pré-história recente portuguesa : contributos para repensar o processo arqueológico." Dissertação, Porto : [Edição do Autor], 2010. http://aleph.letras.up.pt/F?func=find-b&find_code=SYS&request=000207275.
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O trabalho realizado representa um estudo dos “elementos de tear” provenientes de Castanheiro do Vento, no período compreendido entre o final do IV e o final do III milénios a.C.. Para o enquadramento teórico, foi feito um levantamento bibliográfico relativo a materiais semelhantes mencionados por outros investigadores, bem como uma abordagem aos “elementos de tear” encontrados noutros sítios arqueológicos em Portugal. Ao longo desta investigação, argumentámos a favor de uma mudança da expressão “peso de tear” para “elemento de tear”, por considerarmos que a primeira designação nem sempre é a mais apropriada para mencionar estes materiais. Os “elementos de tear” formam um grupo heterogéneo de objectos, que têm vindo a ser interpretados como vestígios da prática de tecelagem. Porém, confirmámos, através do estudo contextual dos “elementos” provenientes da estrutura subcircular A de Castanheiro do Vento, que eles nem sempre remetem para essa prática, já que dependem do contexto em que estão incluídos e das relações que se estabelecem entre eles e outros materiais. Finalmente, considerámos importante criar um guia para o estudo dos “elementos de tear”, que tem como objectivo uniformizar os registos efectuados e as informações recolhidas sobre estes, uma vez que nos confrontámos com alguma ausência de dados para a elaboração deste estudo.
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Pereira, Mariana Pinto Leitão. "Pesos e tear e elementos de tear na pré-história recente portuguesa : contributos para repensar o processo arqueológico." Master's thesis, Porto : [Edição do Autor], 2010. http://hdl.handle.net/10216/56091.
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O trabalho realizado representa um estudo dos “elementos de tear” provenientes de Castanheiro do Vento, no período compreendido entre o final do IV e o final do III milénios a.C.. Para o enquadramento teórico, foi feito um levantamento bibliográfico relativo a materiais semelhantes mencionados por outros investigadores, bem como uma abordagem aos “elementos de tear” encontrados noutros sítios arqueológicos em Portugal. Ao longo desta investigação, argumentámos a favor de uma mudança da expressão “peso de tear” para “elemento de tear”, por considerarmos que a primeira designação nem sempre é a mais apropriada para mencionar estes materiais. Os “elementos de tear” formam um grupo heterogéneo de objectos, que têm vindo a ser interpretados como vestígios da prática de tecelagem. Porém, confirmámos, através do estudo contextual dos “elementos” provenientes da estrutura subcircular A de Castanheiro do Vento, que eles nem sempre remetem para essa prática, já que dependem do contexto em que estão incluídos e das relações que se estabelecem entre eles e outros materiais. Finalmente, considerámos importante criar um guia para o estudo dos “elementos de tear”, que tem como objectivo uniformizar os registos efectuados e as informações recolhidas sobre estes, uma vez que nos confrontámos com alguma ausência de dados para a elaboração deste estudo.
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Disney, Julia L. "Tear lacritin concentrations in canine keratoconjunctivitis sicca." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/86440.
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Background: Keratoconjunctivitis sicca (KCS) is a chronic ocular disease of both dogs and humans that can result in ocular discomfort, corneal opacification, and vision loss. Lacritin, a protein found in the tears of many species, has been shown to play a role in lacrimation and corneal health. Because of its role as a potential lacrimostimulant, assessment of endogenous lacritin levels could reveal a correlation between lacritin and tear production in the dog.
Objectives: To determine if tear lacritin concentrations are decreased in canine eyes affected by KCS.
Animals: 58 client-owned dogs (tear samples from 55 eyes with normal tear production and 55 eyes diagnosed with KCS).
Methods: All eyes underwent an ophthalmic exam, including Schirmer Tear Testing (STT), anterior segment assessment, and tear sample collection. Tear samples were evaluated for their total protein concentrations via BCA assay and lacritin concentrations via ELISA.
Results: Total protein of canine tears is increased in KCS-affected eyes as compared to normal eyes. Tear lacritin as a component of total tear protein is significantly decreased in tears from KCS-affected eyes. When measured as a concentration (mass per volume of aqueous tears), lacritin is not significantly different between KCS-affected eyes and normal eyes, nor were they strongly correlated to STT values.
Conclusions and Clinical Importance: Total tear protein levels were significantly increased in canine KCS. When quantified as a proportion of total tear sample protein, tear lacritin levels are decreased in KCS-affected eyes. Relative to tear volume, tear lacritin levels are not significantly different between KCS-affected eyes and normal eyes. Assessment of lacritin supplementation in canine KCS is warranted to evaluate potential effects on lacrimation and ocular surface health.Master of Science
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Peach, Helena C. "The tear film and contact lens wear." Thesis, Aston University, 2003. http://publications.aston.ac.uk/9651/.
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Contact lenses have become a popular method of vision correction for millions of people globally. As with all devices designed for use within the body, interactions occur between the implanted material and the surrounding biological fluid. A common complaint of lens wearers is that they often experience symptoms of dry eye whilst wearing lenses. This sensation is often heightened towards the end of the day. Through the course of this study, various analytical techniques have been utilised including one dimensional electrophoresis and Western Blotting to study the protein profiles of tear samples. By studying the tears of non-contact lens wearers, it was possible to analyse what could be considered normal, healthy, individuals. A clinical study was also undertaken which followed a population of individuals from the neophyte stage to one whereby they were accustomed lens wearers. Tears were monitored at regular intervals throughout the course of this study and worn contact lenses were also analysed for proteins that had been deposited both on and within the lens. Contact lenses disrupt the tear film in a physical manner by their very presence. They are also thought to cause the normal protein profile to deviate from what would be considered normal. The tear film deposits proteins and lipids onto and within the lens. The lens may therefore be depriving the tear film of certain necessary components. The ultimate aim of this thesis was to discover how, and to what extent, lenses affected tear proteins and if there were any proteins in the tear fluid that had the potential to be used as biochemical markers. Should this be achievable it may be possible to identify those individuals who were more likely to become intolerant lens wearers. This study followed the changes taking place to the tear film as an effect of wearing contact lenses. Twenty-eight patients wore two different types of silicone hydrogel lenses in both a daily wear and a continuous wear regime. The tear protein profiles of the lens-wearers were compared with a control group of non-lens wearing individuals. The considerable amount of data that was generated enabled the clearly observable changes to the four main tear proteins to be monitored.
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Sariri-Khayatzadeh, Reyhaneh. "Tear protein interaction with hydrogel contact lenses." Thesis, Aston University, 1995. http://publications.aston.ac.uk/9747/.
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The design and synthesis of biomaterials covers a growing number of biomedical applications. The use of biomaterials in biological environment is associated with a number of problems, the most important of which is biocompatabUity. If the implanted biomaterial is not compatible with the environment, it will be rejected by the biological site. This may be manifested in many ways depending on the environment in which it is used. Adsorption of proteins takes place almost instantaneously when a biomaterial comes into contact with most biological fluids. The eye is a unique body site for the study of protein interactions with biomaterials, because of its ease of access and deceptive complexity of the tears. The use of contact lenses for either vision correction and cosmetic reasons or as a route for the controlled drug delivery, has significantly increased in recent years. It is relatively easy to introduce a contact lens Into the tear fluid and remove after a few minutes without surgery or trauma to the patient. A range of analytical techniques were used and developed to measure the proteins absorbed to some existing commercial contact lens materials and also to novel hydrogels synthesised within the research group. Analysis of the identity and quantity of proteins absorbed to biomaterials revealed the importance of many factors on the absorption process. The effect of biomaterial structure, protein nature in terms of size. shape and charge and pH of the environment on the absorption process were examined in order to determine the relative up-take of tear proteins. This study showed that both lysozyme and lactoferrin penetrate the lens matrix of ionic materials. Measurement of the mobility and activity of the protein deposited into the surface and within the matrix of ionic lens materials demonstrated that the mobility is pH dependent and, within the experimental errors, the biological activity of lysozyme remained unchanged after adsorption and desorption. The study on the effect of different monomers copolymerised with hydroxyethyl methacrylate (HEMA) on the protein up-take showed that monomers producing a positive charge on the copolymer can reduce the spoilation with lysozyme. The studies were extended to real cases in order to compare the patient dependent factors. The in-vivo studies showed that the spoilation is patient dependent as well as other factors. Studies on the extrinsic factors such as dye used in colour lenses showed that the addition of colourant affects protein absorption and, in one case, its effect is beneficial to the wearer as it reduces the quantity of the protein absorbed.
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Duque, Bruno Silvério. "Tecer com luz : arte telemática, física quântica e cosmologia." reponame:Repositório Institucional da UnB, 2017. http://repositorio.unb.br/handle/10482/24243.
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Dissertação (mestrado)—Universidade de Brasília, Instituto de Artes, Programa de Pós-Graduação em Arte, 2016.Submitted by Raiane Silva (raianesilva@bce.unb.br) on 2017-07-13T16:35:51Z No. of bitstreams: 1 2016_BrunoSilverioDuque.pdf: 5423029 bytes, checksum: 9c0bb9abd09da9d1f7de3b82786fe491 (MD5)
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Esta dissertação tem como objetivo interpretar a arte telemática a partir de leituras de teorias da física moderna, por sua vez apresentadas por meio de metáforas encontradas na literatura de divulgação científica. Estas teorias são apresentadas em paralelo com a análise de obras de arte telemática, tal como o projeto Diametral, que criei em 2011, além de obras de Mobile Image, Mit Mitropoulos, Dan Graham, Paul Sermon, entre outros. Diversos físicos apontam para o provável atributo que os buracos negros têm de conectar pontos distantes do universo, tal qual os aparelhos de telecomunicações usados na arte telemática, os quais chamamos de caixas negras, em referência a caixa preta e buraco negro. A Física Quântica e a Cosmologia descrevem o universo e suas partes constituintes, que o físico Brian Greene (2005) designa como tecido do cosmo, uma espécie de espuma quântica, na qual a realidade é definida por relações entre partes que isoladas não possuem sentido algum. Entre as afinidades que possuem a arte telemática e a física moderna estão as relações entre tempo e espaço, matéria e energia, informação e entropia, a velocidade e o papel ativo do "observador" na experiência. A Arte contextual, da qual a arte telemática faz parte, por sua vez trabalha a ideia de costurar realidades vivas. Concluímos que a ciência moderna, na sua busca por descrever a realidade, se afasta da experiência cotidiana de tal maneira, que cumpre a dupla função poética e instrumental.
This dissertation has the objective of interpreting telematic art out of theories from modern physics, which are exposed through metaphors found in scientific publication literature. Those theories are presented in parallel to the analysis of telematic artworks such as Diametral project, which I created in 2011, among works from Mobile Image, Mit Mitropoulos, Dan Graham, Paul Sermon, and others. Many physicists point to the black holes probable attribute of connecting distant points in the universe, such as the telecommunication machines, which we call black boxes. Quantum Physics and Cosmology describes the universe and its constituent parts, which the physicist Brian Greene (2005) designate as the fabric of the cosmos, a kind of quantum foam, in which the reality is determined by the relations between the parts, which have no meaning in isolation. Amongst the affinities between telematic art and modern physics there are the relations between space and time, energy and matter, information and entropy, velocity and the active roll of the "observer" in the experience. The contextual art, which the telematic art is part of, in its turn deals with the sewing of live realities. We conclude that modern science, in its pursuit in describing reality moves away from everyday experience in such a way that it accomplishes the double function of poethics and instrumentation.
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Patterson, Benjamin Oliver. "Improving the safety and utility of thoracic endovascular aortic repair." Thesis, St George's, University of London, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.675932.
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Thoracic endovascular aortic repair (TEVAR) is now the treatment of choice for most diseases of the thoracic aorta. Current evidence and guidelines for practice are based on pooled analysis of data that are of variable quality. Questions remain about the applicability of TEVAR to different pathologies, peri-procedural neurological complications, the subsequent durability of the procedure and mid-term survival of patients. Methods and Results A systematic review of the literature was performed to describe the incidence of peri-operative and mid-term adverse events following TEVAR. For the main investigation, data from five phase IV trials was combined with that from St George's Vascular Institute to form a composite dataset of 1010 patients that underwent TEVAR from 2002-2010. A high rate of mid-term all cause mortality was observed in patients treated for thoracic aortic aneurysm, with less than 60% of those treated living beyond 5 years. Factors predicting neurological complications were determined using logistic regression modelling. Coverage of the left subclavian artery was the most important predictor of post-operative stroke, specifically in posterior vascular territories. Patients undergoing elective repair of thoracic aortic aneurysms were stratified into those at high, intermediate and low risk of a death wi!hin five years using regression models based on pre-operative factors. Those at high and low risk of aortic re-intervention were similarly identified. The models were validated externally using a dataset obtained from the United States. Conclusions Post-operative outcomes following TEVAR are partly dependent on presenting pathology, especially with regards to mid-term all-cause death. Coverage of the left subclavian artery is one of the few potentailly modifiable risk factors for stroke. Patients can risk-stratified according to the risk of midterm all cause death following TEVAR, and careful consideration should be given before treating patients who may not benefit in terms of overall life expectency.
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Guillon, Jean-Pierre Charles François. "Tear film structure of the contact lens wearer." Thesis, City University London, 1987. http://openaccess.city.ac.uk/7955/.
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New techniques are proven in this thesis which allow the visual examination of the tear film on the cornea and on different types of contact lenses. The techniques are as follows: 1. A high magnification technique of photography using the biomicroscope and crossed polarised light, allows the measurement of tear film layer thicknesses and on the surface of rigid contact lenses and 'in vivo receding contact angle'. 2. A low magnification technique of photography allows the recording and the analysis of the superficial layers of the tear film over a wide area of the eye and contact lens surface. 3. A clinical instrument has been designed for the routine clinical observation of the tear film. It permits the visual measurement of the tear film break-up time (BUT) without the use of fluorescein. 4. A unique technique of in-vivo photography of the mucous coverage of the corneal epithelial surface and contact lens surfaces is presented. Such techniques improve the understanding of surface wettability problems. As a result of this work the appearance of the normal lipid layer of the pre-ocular tear film has been classified into seven grades within a thickness range of 0.02μm to 0.58μm. As we well as the normal, two examples of abnormal lipid layers are described. The manner by which Meibomian gland secretion occurs and performs its role in the tear film is illustrated and analysed. Forced gland secretion by pressure induced localised lipid thickness increase. Eyelid closure was seen to compress the lipid film and instillation of saline broke up the lipid film. It can be seen that the pre-soft lens tear film usually possesses a thin superficial lipid layer and an aqueous phase of limited dimensions. On the other hand the pre-PMMA rigid contact lens tear film rarely possesses a visible superficial lipid layer and its aqueous layer measured 1.5μm on average. The addition of the 'wetting' solution acts on the thickness of the aqueous phase which increases to 2.5μm and supports a minimal lipid layer. The use of contact lens materials of better wettability permits the formation of films of increased thickness (up to 5.5μm) with a visible superficial lipid layer which was seen to stabilise the film and retard its drying. The main differences in mucous coverage are described as follows. At the level of the basal layer of the tear film the mucous coverage takes a continuous undulated form on the corneal epithelium but a discontinuous sporadic distribution on soft lenses decreasing to sporadic occurrence on rigid lenses. Finally, because of the acquisition of the quantitative results, new infra-structures of the pre-lens tear film for soft and rigid lenses are proposed.
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Johnson, Michael Edward. "Investigations on the human pre-ocular tear film." Thesis, Cardiff University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.548833.
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Information regarding the performance of tests used to assess the tear film is currently incomplete. This hinders the interpretation of their results, and so obstructs the management of patients with disorders of the tear film. This work determined the repeatability and identified confounding variables of methods that assess tear breakup time and tear meniscus height. It was found that the reproducibility of both these tests were poor when considered over the range of values encountered in clinical practice; however, the situation was improved for lower values. Furthermore, results indicated that the volume of Fluorescein solution instilled prior to the assessment of tear break-up time and the delay after a blink when assessing tear meniscus height should be standardized. Additionally, a new instrument to grade the severity of symptoms of ocular surface irritation was developed and psychometrically tested. This has advantages over its predecessors because it derives measures on a linear interval scale and more satisfactorily accounts for missing data. It is envisaged that this instrument will be used in future clinical trials, and will improve the power of inferences made from their data. Finally, the effectiveness of eyedrops containing Sodium hyaluronate in the treatment of moderate dry eye was investigated. A pharmacokinetic analysis established that their beneficial effects on the tear film last several hours, and a follow-up study found that they reduce symptoms and improve ocular surface health when used for a month
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Craig, Jennifer P. "Tear physiology in the normal and dry eye." Thesis, Glasgow Caledonian University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295065.
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Chen, Linling. "Tear Energy of Natural Rubber Under Dynamic Loading." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1227728603.
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McClure, Kate Alexandra. "Tear Film Dynamics Associated with Contact Lens Wear." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523579680091666.
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Campbell, Darren. "Tear and skin phospholipids analysis and hydrogel analogues." Thesis, Aston University, 2007. http://publications.aston.ac.uk/9807/.
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This thesis is concerned with the analysis of phospholipids in the tear film and with the synthesis of phospholipids analogous to hydrogels. The work consists of two areas. The first area is the study of the phospholipids in the tear film, their nature and fate. The use of liquid chromatography mass spectrometry determined that the concentration of phospholipids in the tear film was less than previously thought. Thin layer chromatography showed the presence of diacylglycerides (DAGs) in the tear film at relatively high concentrations. The activity of an enzyme, phospholipase C, was found in the tear film. It was hypothesised that the low concentration of phospholipids and high concentrations of DAG in the tear film was due to the action of this enzyme. The second area of study was the synthesis of phospholipids analogous materials for use in ocular and dermal applications. For ocular applications the synthesis involved the use of the monomer N,N-dimethyl-N-(2-acryloylethyl)-N-(3-sulfopropyl) ammonium betaine (SPDA) in combination with 2-hdyroxyethyl methacrylate (HEMA). Charge-balanced membranes were also synthesised using potentially anionic monomers in conjunction with cationic monomers in stoichiometrically equivalent ratios also with HEMA as a commoner. Membranes of SPDA copolymers and charge-balanced copolymers proved to have some properties suitable for ocular applications. The dermal materials consisted of one family of partially hydrated hydrogels synthesised from SPDA in combination with ionic monomers: sodium 2-(acrylamido)-2-methyl propane sulfonate and acrylic acid-bis(3-sulfopropyl)-ester, potassium salt. A second family of partially hydrated hydrogels was synthesised from N-vinyl pyrrolidone. Both of the partially hydrated hydrogels synthesised proved to have some properties suitable for use as adhesives for the skin.
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Tolentino, Andréia Ramalheiro. "Rap e repente: do tecer das rimas ao canto falado." Universidade Presbiteriana Mackenzie, 2009. http://tede.mackenzie.br/jspui/handle/tede/1996.
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Previous issue date: 2009-02-11Fundo Mackenzie de Pesquisa
The present research runs upon the importance of oral tradition in contemporary age, an age characterized by the loss of traditional references.It examines "rap" and "repente" as oral poetics that represent popular culture and tell the globalization effects, consequence of the current economic system. The research aimed at identifying the similarities between these two popular musical manifestations, ressignifying the action of cultural agents responsible for the continuance of such tradition, characterized by spoken singing. Under a cultural perspective, it created a dialogue with the interviewed subjects, in order to clarify both their world vision and the way they organize their social practices. By doing so, it was possible to see the elements which allow the comprehension of artistic and social representations of such groups.
O presente trabalho aborda a importância da tradição oral na contemporaneidade, caracterizada pela perda de referências tradicionais. Analisa o rap e o repente como poéticas orais que representam a cultura popular e traduzem os efeitos da globalização, conseqüência do sistema econômico vigente. Objetivou identificar as semelhanças entre ambos, ressignificando a ação dos agentes culturais responsáveis pela continuidade dessa tradição caracterizada pelo canto falado. A pesquisa realizada, sob o prisma cultural, estabeleceu um diálogo com os sujeitos entrevistados, explicitando a visão de mundo e o modo de organização das práticas sociais destes agentes, o que possibilitou a descoberta de elementos que permitiram a compreensão das representações artísticas, culturais e sociais desses grupos.
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Galetti, Ivani Pereira [UNESP]. "Educação Matemática e Nova Alta Paulista: orientação para tecer paisagens." Universidade Estadual Paulista (UNESP), 2004. http://hdl.handle.net/11449/90996.
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galetti_ip_me_rcla.pdf: 2658515 bytes, checksum: 95869f0bedb7c940e8185143943e639b (MD5)Utilizando a História Oral como metodologia de pesquisa, esta investigação pretende ser uma contribuição para constituir uma paisagem da Nova Alta Paulista, última região do Estado de São Paulo a ser colonizada pelo homem branco. Dessa paisagem participam como elementos constitutivos essenciais o professor de Matemática, seu cotidiano e suas práticas. O texto é construído como uma entrevista, uma sessão de orientação, um diálogo entre orientador e orientanda, tecendo não só considerações sobre o objeto da pesquisa mas, também, ao próprio processo de elaboração da investigação.
Using Oral History as methodology, this investigation intends to be a contribution to produce a landscape of Nova Alta Paulista, the last region of São Paulo State colonized by white man. Mathematics teachers, their everyday life and practices take part in this landscape as essential elements. The text is written as an interview, a session of direction, a dialogue between the professor and the master s degree student, speaking not only about the object of the research, but also the own process of investigation production.
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Galetti, Ivani Pereira. "Educação Matemática e Nova Alta Paulista : orientação para tecer paisagens /." Rio Claro : [s.n.], 2004. http://hdl.handle.net/11449/90996.
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Orientador: Antonio Vicente Marafioti GarnicaBanca: Terezinha Santarosa Zanlochi
Banca: Carlos Roberto Vianna
Resumo: Utilizando a História Oral como metodologia de pesquisa, esta investigação pretende ser uma contribuição para constituir uma paisagem da Nova Alta Paulista, última região do Estado de São Paulo a ser colonizada pelo homem branco. Dessa paisagem participam como elementos constitutivos essenciais o professor de Matemática, seu cotidiano e suas práticas. O texto é construído como uma entrevista, uma sessão de orientação, um diálogo entre orientador e orientanda, tecendo não só considerações sobre o "objeto" da pesquisa mas, também, ao próprio processo de elaboração da investigação.
Abstract: Using Oral History as methodology, this investigation intends to be a contribution to produce a landscape of Nova Alta Paulista, the last region of São Paulo State colonized by white man. Mathematics teachers, their everyday life and practices take part in this landscape as essential elements. The text is written as an interview, a session of direction, a dialogue between the professor and the masters degree student, speaking not only about the object of the research, but also the own process of investigation production.
Mestre
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Lassen, Dulce Beatriz Mendes. "No tecer dos fios : resistência no discurso das mulheres camponesas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/37431.
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Dans cette Dissertation, nous analysons des différents fils discursifs qui constituent le tissu du discours du Mouvement de Femmes Campagnardes du Brésil (MMC Brasil). Notre objectif est de comprendre comment se développe le fonctionnement des pratiques discursives de ce mouvement social de la campagne: qu’est-ce qui est (ou qu’est-ce qu’il y a de) répétition, paraphrase et saturation de discours déjà sédimentés, et qu’est-se qui est (ou qu’est-ce qu’il y a de) déplacement, polysémie et (ré)signification? Pour cela, dans cette recherche, affiliée à l’Analyse de Discours menée par Michel Pêcheux, nous parcourons des différents points de l’objet en étude, comme, par exemple, la symbolisation d’objets physiques, qui délimitent un imaginaire d’identité pour la femme-militante, la relation entre le Mouvement et l’Appareil (Répressif) de l’État, et le questionnement au mode comme l’Appareil Idéologique Scolaire offre l’éducation aux campagnards. Nous observons, d’un côté, des énoncés propres à la Formation Discusive des Femmes Travailleuses de la Campagne qui régularise le dire de ces sujets. D’un autre côté, nous vérifions des énoncés qui doivent être niés et, encore, comment se manifestent des différents positionnements de la même Formation Discursive. Ensuite, nous analysons des formulations dans lesquelles les dires reviennent, par la répétition d’énoncés, sous la forme de préconstruits. À la fin de la Dissertation, nous réalisons une discussion à propos du geste, entendu à partir de Pêcheux (1993a, p. 78), comme “acte dans le niveau du symbolique”, et sur ce qu’on discursivise à partir des “actes” des campagnardes devant la lentille de l’appareil photo. Notre parcours théorique-analytique par les différents points remarqués essaye de montrer la résistance tant à l’exploration par le capital qu’à la dominationNesta Dissertação, analisamos diferentes fios discursivos que constituem o tecido do discurso do Movimento de Mulheres Camponesas (MMC BRASIL). Nosso objetivo é compreender como se dá o funcionamento das práticas discursivas desse movimento social do campo: o que é (ou há de) repetição, paráfrase e saturação de discursos já sedimentados, e o que é (ou há de) deslocamento, polissemia e (re)significação?. Para isso, nesta pesquisa, filiada à Análise de Discurso pecheuxtiana, percorremos diferentes pontos do objeto em estudo, como, por exemplo, a simbolização de objetos físicos, que delimitam um imaginário de identidade para a mulher-militante, a relação entre o Movimento e o Aparelho (Repressivo) de Estado, e o questionamento ao modo como o Aparelho Ideológico Escolar oferece a educação aos camponeses. Observamos, por um lado, enunciados que são próprios à Formação Discursiva das Mulheres Trabalhadoras do Campo que regula o dizer desses sujeitos e, por outro, enunciados que devem ser negados, e, ainda, como se manifestam diferentes posicionamentos da mesma Formação Discursiva. A seguir, analisamos formulações em que dizeres retornam, pela repetição de enunciados, sob a forma de pré-construídos. Ao final da Dissertação, realizamos uma discussão sobre gesto, entendido a partir de Pêcheux (1993a, p. 78), como “ato no nível do simbólico”, e sobre aquilo que se discursiviza a partir de “atos” das camponesas diante da lente da câmera fotográfica. Nosso percurso teórico-analítico pelos diferentes pontos destacados procura mostrar a resistência tanto à exploração pelo capital como à dominação pelo homem, a que estão submetidas as mulheres camponesas devido ao modo como está organizada a formação social capitalista e patriarcal, e como, a partir dessa resistência, efeitos de sentido são produzidos.
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Kimball, Samuel H. "Evaporation is the Primary Mechanism of Tear Film Thinning." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243957487.
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Yan, Ning. "Mechanistic modelling of the Elmendorf tear energy of paper." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq28092.pdf.
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Medina, Cruz N. "Poch[@]teca: Rhetorical Strategies of a Chican@ Academic Identity." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/293494.
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This dissertation addresses the rhetoric of deficiency that frames Latina/o students as lacking with regard to education. This dissertation begins by examining the cultural deficit model entrenched in colonial narratives of history that justify unequal access to resources in the US. I argue that the reimagining of the pejorative trope of 'pocho' by reconnecting it with its etymological root pochteca provides a trope of resistance to deficiency rhetoric, and a trope that embodies rhetorical strategies for Latina/o students navigating academic institutions. Additionally, this dissertation furthers the advocacy of culturally relevant reading and writing assignments and practices, while at the same time arguing that the discursive productions responding to culturally relevant writing demonstrate rhetorical strategies. The analysis of a student publication that responds to and integrates dichos provides a site of analysis where students identify rhetorical strategies that help them navigate obstacles related to education. The use of Twitter by a predominantly Latina/o summer bridge program provides an additional site of analysis where the writing of students in digital spaces allows them to perform latinidad, and create support networks that help them succeed in school. The pedagogical chapter of this dissertation analyzes the Arizona House Bill 2281 and the rhetoric that frames the Tucson Unified School District's Mexican American Studies program as racist and anti-American; following this analysis come suggestions for incorporating culturally relevant aspects of the TUSD MAS curriculum into rhetoric and composition curriculum.
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Brantman, Karen Renee. "Tear Film VEGF in Dogs with Vascularizing Corneal Disease." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23166.
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This body of work encompasses two studies: the collection of canine tears via a novel polyesterrod and the comparison of VEGF-A concentrations in tears from dogs with normal and
vascularized corneas. The first study used polyester rods for tear collection in dogs. Fluid volume and VEGF recovery characteristics, as well as potential binding of VEGF to the rod, were determined. Tears were harvested from normal dogs using rods and glass capillary tubes. Tears were assayed for tear film VEGF using a commercial canine VEGF sandwich ELISA kit. Dilutions of VEGF standard were wicked into the rods or drawn into capillary tubes, eluted, and assayed. Percent volume recovery is adequate for polyester rods as is percent VEGF recovery. VEGF is detectable in normal canine tears.The second study harvested tear samples from eyes of dogs with vascularizing corneal disease, as well as the contralateral unaffected eye of unilaterally diseased dogs, and normal dogs. Vascularization scores were assigned to diseased eyes and tear film VEGF concentration was assayed as above. Mean tear film VEGF concentration of diseased eyes did not differ from control eyes, and was not correlated with disease process, extent of vascularization, or other parameters. Tear film VEGF in unaffected eyes was significantly higher than control and vascularized eyes. Canine tear film VEGF exceeds biologically active concentrations, but does not correlate with state of corneal vascularization. VEGF-related control of corneal vascularization may be mediated by other proangiogenic factors.
Master of Science
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Barúa, Giciéli Hohemberger. "Do tear ao tecido: uma experiência com jornal escolar." Universidade Federal do Pampa, 2015. http://dspace.unipampa.edu.br:8080/xmlui/handle/riu/1256.
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A presente pesquisa trata de narrar a prática de letramento do jornal escolar “O Maracanã”, desenvolvido em uma escola do campo em Alegrete-RS, discutindo o processo de constituição desse instrumento mediante os sentidos produzidos desde sua criação e implantação até a 35ª edição. Para que os objetivos fossem atingidos, o trabalho foi organizado em três etapas: a primeira aborda aspectos teóricos, percorrendo desde a explicação sobre a narrativa de experiência, conceituação de letramento, projeto, evento e agente, perpassando pelas inspirações pedagógicas de Freinet e Bonini, até a questão de gênero de Bakhtin; a segunda é dedicada aos aspectos metodológicos, onde se fez opção pelo paradigma indiciário para, através de indícios singulares, capturar pistas sobre o processo de constituição do jornal escolar; e a terceira, tem como foco o projeto de letramento jornal na escola “O Maracanã”, abordando exclusivamente a constituição do jornal em seus dez anos de existência e em seus trinta e cinco exemplares. Para isso, selecionei quatro categorias: a atuação da professora (atitudes, aprendências e experiências); os alunos: motivação, participação e autoria (escrita colaborativa); os gêneros discursivos: os conteúdos do jornal e a constituição do gênero entrevista; o jornal escolar e sua função sociocultural. Dessa forma, esse estudo oportunizou-me ter um novo olhar sobre o feito, refletindo sobre minhas ações no decurso, por meio de um vigoroso diálogo com a teoria. Este trabalho é, também, uma tentativa de proporcionar, aos professores-leitores, uma reflexão sobre a necessidade da incorporação de práticas de letramento à vivencia de sala de aula, oferecendo-lhes os produtos da minha experiência. Finalizei este estudo provisoriamente, pois não consegui enxergar o fim do tecido. Verdadeiramente, o término deste está ligado a um recomeço já que novas linhas serão colocadas na agulha para que novas costuras com tecidos de diferentes cores, tamanhos e texturas.
Esta investigación trata de narrar la práctica de letramiento del periódico escolar "El Maracaná", se convirtió en una escuela de campo en Alegrete-RS, discutiendo el proceso de constitución de este instrumento por los sentidos producidos desde su creación y el despliegue de la 35 edición. Para que se lograron los objetivos, el trabajo se organizó en tres etapas: la primera trata de los aspectos teóricos, al pasar de la explicación de la experiencia narrativa, el concepto de letramiento, proyectos, eventos y agente, pasando por inspiraciones educativas de Freinet y Bonini, a la cuestión de Bajtín de género; el segundo está dedicado a los aspectos metodológicos, donde hizo elección del paradigma probatorio, a través de signos naturales, captura de pistas sobre la formación del proceso periódico de la escuela; y el tercero se centra en el proyecto de letramiento periódico en la escuela " El Maracaná", abordando la constitución del periódico en sus diez años de existencia y en sus treinta y cinco copias. Para tanto, he seleccionado cuatro categorías: el papel del profesor (actitudes, aprendizajes y experiencias); estudiantes: motivación, participación y autoría (escrito en colaboración); los géneros: el contenido del periódico y la creación de la entrevista género; el periódico de la escuela y su función sociocultural. Por lo tanto, este estudio há proporcionado una oportunidad para mí para tener una nueva mirada sobre el hecho, reflexionando sobre mis acciones en el curso, a través de un diálogo vigoroso con la teoría. Este trabajo es también un intento de proporcionar, profesores lectores, una reflexión sobre la necesidad de la incorporación de prácticas de letramiento a las experiencias de clase, ofreciéndoles los productos de mi experiencia. Provisionalmente finalizado este estudio, porque no podría ver el final de la tela. En verdad, el extremo de la misma está conectada a un principio como nuevas líneas se colocan en la aguja de modo que los nuevos tejidos con costuras de diferentes colores, tamaños y texturas.
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El-Darazi, Samir. "DEVELOPMENT OF THE TEAR-PEEL TEST FOR PAPER TOWELS." Miami University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=miami1297374563.
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Pucker, Andrew David. "Collection, Quantification, and Analysis of Meibum and Tear Lipids." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1305771901.
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Bandlitz, Stefan. "The role of the meniscus in the tear film." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/73390/.
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In the diagnosis of dry eye, an evaluation of tear fluid volume is an important parameter. The tear menisci hold approximately 75-90% of the overall tear fluid volume and serve as reservoirs, supplying tears to the pre-corneal tear film. The measurement of the anterior curvature radius of the tear meniscus (TMR) is an indicator of tear film volume and when it is performed non-invasively has been found to have good dry eye diagnostic accuracies. Optical coherence tomography and meniscometry are existing techniques that can measure TMR non-invasively. These techniques have not found wide application among clinicians, either because they are not commercially available or they are too expensive. This PhD describes a series of experiments that investigated the development, evaluation and application of a new instrument for non-invasive tear meniscus measurement. From the results of these studies, it can be concluded: A Portable Digital Meniscometer (PDM) was developed. This consists of an application tool for the iPod-touch, a slit-lamp holder for the iPod-touch and an image analysis software for TMR calculation. A simple iPod-touch or an iPhone mounted on a commercially available digital slit-lamp can be used to project a grid of black and white lines on the tear meniscus. Using the principal of reflective meniscometry, the radius of the lower tear meniscus can be non-invasively measured. This newly developed instrument is a simple, mobile and useful device for measuring tear meniscus radius, and therefore tear volume, and is suitable for use by clinicians. The newly developed PDM was evaluated in vitro and in vivo. It produced accurate and reliable measurements and provided similar values for the tear meniscus radius, in human studies, to the existing video-meniscometer. PDM and OCT measurements of the TMR were significantly correlated. Since with the PDM no image calibration is needed, it seems to be a quick and non-invasive technique for evaluation of tear fluid quantity. The PDM appears to measure the radius of the central section of the tear meniscus The PDM was able to non-invasively measure alterations in TMR and TMH along the lower lid. The flatter TMR and higher TMH at the nasal and temporal locations may be caused by the LIPCOF degree of the underlying conjunctiva. To avoid any interference by LIPCOF, it is recommended that TMR and TMH be measured along the lower lid margin below the pupil centre. Furthermore, the PDM was able to usefully detect changes in TMR following the instillation of artificial tears. The difference in residence time is likely to reflect the different viscosity and Newtonian properties of these drops. An overload with a large drop may result in initial increased blink rate. Blink rate at baseline is significantly related to dry eye symptoms.
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Erhage, Sofie. "Optimization of tear strength in a multi-ply paperboard." Thesis, Karlstads universitet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-62638.
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The thesis has been carried out as a part of the Master of Science in mechanical engineering at Karlstads University. The purpose of the study was to evaluate how different variables affect the tearing resistance in a multi-ply paperboard. The paperboard’s final quality is dependent on several different process – and recipe variables and has, in this study, been analyzed with respect to ply grammage, ply composition and refining energies. This was investigated by manufacturing of anisotropic sheets consisting of four plies and isotropic sheets consisting of single-ply sheets. The multi-ply sheets were manufactured where one variable at a time were tested at different values. The single-ply sheets were manufactured of pure pulps with the refining energy being varied. A total of nineteen unique multi-ply sheets and twelve unique single-ply sheets were manufactured. All sheets were tested with respect to the properties including tensile strength, bending stiffness, tear strength and delamination strength. The study shows that an improvement in tearing resistance is obtained when the amount of CTMP-pulp in the center plies 2 and 3 decreases simultaneously as the amount of broke-pulp and unbleached chemical pulp in the same plies increases. The consequence of this improvement is reduced thickness and thereby reduced bending stiffness. The study also shows that several pulps has an optimal degree of refining for maximizing tear strength in paperboard. The major source of error is believed to be the method of manufacturing. It is also possible that the amount of test points has been too few to be able to see any clear trends for several variables.
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Abusharha, Ali. "Tear film response to adverse environments and its management." Thesis, Glasgow Caledonian University, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636494.
Full textAbstract:
As an exposed structure, the tear film is exposed to a variety of environmental conditions that may adversely affect its ability to fulfil its function. The aim of this work is to investigate tear film parameters and the interrelationship between these parameters during exposure to adverse environmental conditions. A wide range of parameters were monitored over a range of relative humidity (RH) and ambient temperatures. Evaporation rate and ocular surface temperature (OST) increased dramatically when room temperature increased from 5 to 25°C. Also changes in lipid layer thickness (LLT) and tear film stability were seen at ambient temperatures of less than 10°C. Changes in tear physiology were also seen during exposure to 5% RH compared to 40 RH%. All tear parameters observed (except OST) were adversely affected by the exposure to a desiccating environment. Some tear film parameters observed became typical of that seen in patients with dry eye.
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Carrijo, Elizângela. "(A)bordar memórias, tecer histórias : fazeres teatrais em Brasília (1970-1990)." reponame:Repositório Institucional da UnB, 2006. http://repositorio.unb.br/handle/10482/3925.
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(A)bordar e tecer lembram habilidades manuais e produções que, no final, têm o toque de quem as cria. Aqui, não é diferente, pois, ao tecer histórias ao longo dessas páginas, dei pontos e enlaces por meio de memórias relatadas por Dulcina de Moraes, Geraldo Martuchelli, Hugo Rodas, Humberto Pedrancini, Iara Pietricovsky, Jesus Vivas, João Antônio e José Maria B. de Paiva, construindo assim uma narrativa compartilhada, com nossos toques especiais. Ao estudar história e cultura, fazendo uso da metodologia da história oral, gravei narrativas e estudei-as com outras fontes de imagens (textuais e visuais) encontradas em diferentes acervos e interpretei os fazeres teatrais em Brasília, entre 1970 e 1990. Assim, parte de história de vida desses narradores/as; saberes; criação e transformação de lugares e repertório encenados, lutas diárias, dificuldades, rupturas, continuidades, belezas e legados se desvelaram aos nossos olhos mostrando dimensões desses fazeres cênicos nessa cidade, numa relação passado-presente heterogênea, dinâmica e significativa de ressonâncias nos dias de hoje. Enfim, estamos diante dessas múltiplas experiências, que mostram-se em diálogo, ora em consenso, ora em conflito, como a própria história é também por mim, assim concebida, sempre inacabada e, portanto, aberta a outras interpretações.
Embroider and weave remind us of some manual abilities and productions that, when finished, are built among those who created them. Here, it is not different because by weaving stories along these pages, I have stitched and tied memories from Dulcina de Moraes, Geraldo Martuchelli, Hugo Rodas, Humberto Pedrancini, Iara Pietricovsky, Jesus Vivas, João Antônio e José Maria B. de Paiva, developing, by the way, a shared narrative with our special touches. By studying history and culture, using the methodology of oral history researches, I have recorded narratives and studied them connected with other sources of (written and visual) images found in different collections and then, I have interpreted the theater actions in Brasília, between 1970 and 1990. Therefore, some parts of life’s history these narraters, knowledge, places that were created, repertoires putted in action, daily struggles, difficulties, ruptures, continuities, beauties and legatos were revealed upon my eyes showing me some actions played in the city, in a heterogenic, dynamic and significant relationship between past and present echoing in nowadays reality. Finally, we are in front of some multiple experiences registers in which, in so many times, are revealed with dialogs and in so many others are shown by conflicts as it is seen in the proper history. This text is by me understood with the belief that the historical object is always unfinished and, therefore, this work is opened for other suggestions and interpretations.
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Sousa, Renata Flávia de Oliveira. "Tecer saberes sensíveis: educação humanizadora e a construção da narrativa histórica." Universidade Nove de Julho, 2018. http://bibliotecatede.uninove.br/handle/tede/1765.
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History is responsible for inserting man into his context, into his environment and into time. It is able to reconnect us in our complexity and make us perceive as practicing and responsible subjects for the creations of the world, an indispensable issue for human formation and survival in a time marked by gratuitous violence and fragility of ties. This analysis aims at: the construction of historical narrative as a practice of complex thought for a humanizing education. It seeks to analyze approximations and distances between history and literature, focusing on the construction of the narrative sensitive, relating to ideas of the complex thought of Edgar Morin. It understands that the uses existing in this relation can help in the development of a sensitive and humanizing education, thus contributing to an education that exercises complex thought. For this I use as reference the cultural history and the thinking of Edgar Morin to think a sensitive historical writing, inspired by literature and that is able to access our complexity. The research fits in a theoretical discussion using bibliographical sources, from academic works, magazines, theoretical books bases and literary books that come to contribute to the creation of the writing and discussions. In its methodology, we tried to construct a sensitive narrative using literature as instrument, as is the proposal launched in the research objectives.It was noticed that historical writing using the inputs provided by the literature as a key to access the human in its various parts (demens and sapiens, poetic and prosaic, etc.) is able to open doors to the practice of complexity. This narrative constructed with possibilities of rich interpretation stimulating the "ecological" thinking is able to make see the other and to perceive the constructed history, inserting the human in the nucleus of knowledge and responsibility in the historical construction, besides putting its parts, prosaic and poetic in a dance with this language full of windows. The results of this research indicate a path to the practice of complex thought in education and scientific production, because when we produce a sensitive writing that allows us to know and include the subject in the making of the world, we can also bring more than information, bring teachings to life.
La historia es responsable de insertar al hombre en su contexto, en su ambiente y en el tiempo. Es capaz de reconectarse en nuestra complejidad y hacernos percibir como sujetos practicantes y responsables de las creaciones del mundo, cuestión indispensable para la formación humana y supervivencia en un tiempo marcado por la violencia gratuita y fragilidad de lazos. Este análisis tiene como objeto: la construcción de la narrativa histórica como práctica del pensamiento complejo para una educación humanizadora. En este sentido, se trata de analizar aproximaciones y distanciamientos entre historia y literatura, centrándose en la construcción de la narrativa sensible, relacionando con ideas del pensamiento complejo de Edgar Morin. Entiende que los usos existentes en esa relación pueden ayudar en el desarrollo de una educación sensible y humanizadora, contribuyendo así a una educación que ejercite el pensamiento complejo. Para ello utilizo como referencia la historia cultural y el pensamiento de Edgar Morin para pensar una escritura histórica sensible, inspirada por la literatura y que sea capaz de acceder a nuestra complejidad. La investigación se encuadra en una discusión teórica usando fuentes bibliográficas, desde trabajos académicos, revistas, libros teóricos bases y libros literarios que contribuyan a la creación de la escritura y discusiones. En su metodología se buscó construir una narrativa sensible utilizando la literatura como instrumento, tal cual es la propuesta lanzada en los objetivos de la investigación. Se percibió que la escritura histórica, utilizando las entradas suministradas por la literatura como clave para acceder al humano en sus diversas partes (demens y sapiens, poética y prosaica, etc.), es capaz de abrir puertas a la práctica de la complejidad. Esta narración construida con posibilidades de interpretación rica, incentivando el pensamiento "ecologizante", es capaz de hacer ver al otro y de percibir la historia construida, insertando lo humano en el núcleo del saber y de la responsabilidad en la construcción histórica, además de colocar sus partes, prosaica y poética en una danza con ese lenguaje lleno de ventanas. Los resultados de esta investigación indican un camino para la práctica del pensamiento complejo en la educación y la producción científica, pues al producir una escritura sensible y que nos permita conocer e incluir al sujeto en la elaboración del mundo, podemos también traer más que información, traer enseñanzas para la vida.
A história é responsável por inserir o homem em seu contexto, em seu ambiente e no tempo. É capaz de nos religar em nossa complexidade e nos fazer percebermos como sujeitos praticantes e responsáveis pelas criações do mundo, questão indispensável para a formação humana e sobrevivência em um tempo marcado pela violência gratuita e fragilidade de laços. Essa análise tem como objeto: a construção da narrativa histórica como prática do pensamento complexo para uma educação humanizadora. Busca analisar aproximações e distanciamentos entre história e literatura, dando enfoque na construção da narrativa sensível, relacionando com ideias do pensamento complexo de Edgar Morin. Entende que os usos existentes nessa relação possam ajudar no desenvolvimento de uma educação sensível e humanizadora, contribuindo, assim, para uma educação que exercite o pensamento complexo. Para isso utilizo como referência a história cultural e o pensamento de Edgar Morin para pensar uma escrita histórica sensível, inspirada pela literatura e que seja capaz de acessar nossa complexidade. A pesquisa se enquadra em uma discussão teórica usando fontes bibliográficas, desde trabalhos acadêmicos, revistas, livros teóricos bases e livros literários que vierem a contribuir para a criação da escrita e discussões. Em sua metodologia buscou-se construir uma narrativa sensível utilizando a literatura como instrumento, tal qual é a proposta lançada nos objetivos da pesquisa. Percebeu-se que a escrita histórica, utilizando as entradas fornecidas pela literatura como chave para acessar o humano em suas diversas partes (demens e sapiens, poética e prosaica, etc.), é capaz de abrir portas para a prática da complexidade. Essa narrativa construída com possibilidades de interpretação rica, incentivando o pensamento “ecologizante”, é capaz de fazer ver o outro e de perceber a história construída, inserindo o humano no núcleo do saber e da responsabilidade na construção histórica, além de colocar suas partes, prosaica e poética em uma dança com essa linguagem cheia de janelas. Os resultados dessa investigação indicam um caminho para a prática do pensamento complexo na educação e na produção científica, pois ao produzirmos uma escrita sensível e que nos permita conhecer e incluir o sujeito na feitura do mundo, podemos também trazer mais que informações, trazer ensinamentos para a vida.
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Morais, Aline Pires de. "Fiandeira de versos: o imaginário do tecer poético de Hilda Hilst." Universidade Federal de Uberlândia, 2010. https://repositorio.ufu.br/handle/123456789/11813.
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Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorThe lyric production of Hilda Hilst (1930 - 2004) is marked by the use of symbolic images that amplify endlessly the possibilities of reading her poems. In her knowledge about the world, the poet discovers the cosmos that surround the time which presents her views recast by the poetic reverie. The symbols used by Hilst are expressions of a soul that made the poetry her life during the search of the color, of the link, the wire, the motion of the shuttle, the precision, the texture of the line, finally, of the exact moment of manipulation the wired-word‟. According to this, the eyes of search return to the study of images made by the author, mainly, from the universe weaver. During the investigation of the poetic figurations imagery in the Hilst‟s text, we will consider the imagination like a creative dynamism in the corpus of selected poems from the books: Júbilo, memória, noviciado da paixão and Exercícios. These productions of Hilst legacy show images of the inspired poet and the weaver poet in verses guidelines that combine the strength of the intellect and the need for expression, linked to the poet desire to make the experience of living the raw material of her poems. Thus, the analytical work of the critical myths in the Hilst‟s poems plans to mark the divine nature of human existence, because the poet is spinner, and wired-words‟ are handled under the gift of art, sometimes under the prophetic gift, or under the simultaneous combination of both, the inspiration and work. The Hilda Hilst‟s poetry, connection between prophecy and incantation, it is a mediator between the sphere of the profane and the sacred, capable of making stocks and destinations by the incantation of her corner that leads and snatch. Thus, the voice of Hilst‟s poetry, symbolic representation of the alliance of the words in the fabric of poetic images, protest as an oracle of life that, sanction the reality, can lead to the rapture of the tangent experience to the sacred and, getting to the unflagging unity between poetry and music, can promote the man catharsis in front of his simple reality.
A produção lírica de Hilda Hilst (1930 2004) é marcada pelo uso de imagens simbólicas que amplificam incessantemente as possibilidades de leitura do seu verso. Em sua mundividência, a poeta descobre o cosmo circundante ao tempo em que apresenta suas impressões refundidas pelo devaneio poético. Os símbolos usados por Hilst são expressões de uma alma que fez do ato poético um ofício de vida na busca da cor, do enlace, do fio, do movimento da lançadeira, da precisão, da textura da linha, enfim, dos instantes exatos de manipulação do fio-palavra. Nessa perspectiva, o olhar da pesquisa volta-se para o estudo das imagens tecidas pela autora, principalmente, a partir do universo tecelão. Ao investigar as figurações do imaginário no texto poético hilstiano, considera-se a imaginação como dinamismo criador no corpus dos poemas selecionados das obras Júbilo, memória, noviciado da paixão e Exercícios. Tais produções do legado hilstiano exibem imagens do poeta inspirado e do poeta tecelão em versos que conjugam a força diretriz do intelecto e a necessidade de expressão, ligados ao anseio da poeta de fazer da experiência de vida a matéria prima dos seus poemas. Assim sendo, o trabalho analítico de mitocrítica dos poemas hilstianos tenciona demonstrar o florescente diálogo que a poeta empreende com os mitos ancestrais do tecer como o de Penélope, das Parcas e de Aracne. A poeta é fiandeira, e seus fios-palavras são manipulados ora sob o dom da técnica, ora sob o dom profético, ou ainda sob a combinação simultânea de ambos, da inspiração e do trabalho. A poética hilstiana, conjunção entre profecia e encantamento, vale-se ainda da inspiração órfica, apresentando-se como mediadora entre a esfera do profano e a do sagrado, capaz de transformar existências e destinos pelo poder encantatório do seu canto que inebria e arrebata. Desse modo, a voz da poesia hilstiana, representação da aliança simbólica das palavras no tecido poético das imagens, insurge como um oráculo de vida que, ao sacralizar a realidade, pode levar ao arrebatamento da experiência tangente ao sagrado e que, ao buscar a inquebrantável unidade entre poesia e música, pode promover a catarse do homem frente à sua comezinha realidade.
Mestre em Teoria Literária