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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

In Vitro Flow Visualization Study of the Interface between Outflow Graft of Ventricular Assist Device and Aorta.

Thatte, Suhas Madhusudan 01 January 2006 (has links)
Heart transplant is often considered the best treatment for prolonged left ventricular failure. However due to limited donor hearts and ineligibility of some patients to get a transplant, heart assist devices are considered a short/long term option to assist the failing ventricle. Numerous in vitro and animal trials are conducted to study the flow fields in artificial ventricles to avoid hemolysis and thrombosis but the effects of flow fields corresponding to the angle of LVAD insertion into the aorta are often neglected. This experiment uses 30, 60 and 90 degree glass models to signify different angles of the surgical end to side anastomosis. Particle Image Velocimetry is used to study the flow fields at the interface and determine optimum angle amongst the three to avoid blood trauma. Use of a 30 degree glass interface minimizes stagnation zone, recirculation patterns, flow reversal, high shear region and other flow irregularities which may lead to reduced hemolysis, thrombosis and blood trauma in a clinical setting.
72

Experimental and Computational Assessment of Mechanical Circulatory Assistance of a Patient-Specific Fontan Vessel Configuration

Chopski, Steven 10 October 2013 (has links)
The treatment of single ventricle anomalies is a formidable challenge for clinical teams caring for patients with congenital heart disease. Those patients fortunate to survive surgical palliation contend with lifelong physical limitations and late stage pathophysiology. A mechanical blood pump specifically designed to increase pressure in the great veins would augment flow through the lungs and provide hemodynamic stability until a donor heart is located. To support the development of such medical devices, this research characterized the fluid dynamics of mechanical assistance in the Fontan circulation by performing numerical analyses and particle image velocimetry (PIV) studies in a patient-specific in vitro model. This project investigated the performance of three pump prototype configurations. ANSYS-CFX was used to conduct the computational studies for a range of operating conditions and degrees of Fontan dysfunction. Pressure generation, blood trauma predictions, shear stresses, fluid streamlines, and velocity profiles were examined. Three-dimensional PIV studies were completed and compared to the numerical estimations. Computational findings and experimental data correlated to within literature expectations. Blood damage levels, shear stresses, and fluid residence times remained reasonable or below threshold limits. The blood pump configurations met expectations by achieving target design specifications for clinical application. The pumps enhanced the rate of hydraulic power gain in the cavopulmonary circuit, reduced inferior vena cava pressure, and minimally increased pulmonary arterial pressure. The blood pump with the twisted protective stent produced the most rapid increase in the rate of power gain and the highest pressure generation. The PIV measurements illustrated a strong dependency of the fluid dynamics on the patient-specific vessel geometry and the particular pump design. The pump having the twisted cage outperformed the other designs and had a dominating impact on the blood flow distribution in the cavopulmonary circuit. A strong rotational component in the flow was observed leaving the pumps. These results confirm that mechanical cavopulmonary assistance is a viable therapeutic option. Significant knowledge into a new class of blood pumps and how these pumps interact with a single ventricle physiology was gained, thus advancing the state-of-the-art in mechanical circulatory support and addressing a significant human health problem.
73

Angled curtain coating : an experimental study : an experimental investigation into the effect of die angle on air entrainment velocity in curtain coating under a range of operating conditions

Elgadafi, Mansour Masoud January 2010 (has links)
In all coating applications, a liquid film displaces air in contact with a dry solid substrate. At a low substrate speed a thin uniform wetting line is formed on the substrates surface, but at a high speed the wetting line becomes segmented and unsteady as air becomes entrained between the substrate and the liquid. These air bubbles affect the quality of the coated product and any means to postpone this at higher speeds without changing the specifications of the coating liquid is desirable. This research assesses the validity of a theoretically based concept developed by Blake and Rushack [1] and exploited by Cohu and Benkreira [2] for dip coating. The concept suggests that angling the wetting line by an angle ß would increase the speed at which air is entrained by a factor 1/cos ß. In practice, if achieved this is a significant increase that would result in more economical operation. This concept was tested in a fast coating operation that of curtain coating which is already enhanced by what is known as hydrodynamic assistance [2]. Here we are effectively checking an additional assistance to wetting. The work, performed on a purposed built curtain coater and a rotating die, with a range of fluids showed the concept to hold but provided the data are processed in a way that separate the effect of curtain impingement from the slanting of the wetting line.
74

Estudos de técnicas de texturização e biolização, e desempenho biológico in vitro e in vivo em membrana para um dispositivo de assistência ventricular e coração artificial totalmente implantáveis / Studies of techniques applied to make a textured and biolized surface diaphragm, and biological performance in vitro and in vivo in a membrane of a ventricle assist device and total artificial heart fully implantable

Legendre, Daniel Formariz 24 April 2003 (has links)
Foi desenvolvido um diafragma de elevada vida útil e biocompatibilidade a ser utilizado em um dispositivo de assistência ventricular esquerda(DAV) eletromecânico de dimensões reduzidas e totalmente implantável. Foi realizado teste de resistência do diafragma de poliuretana com superfície texturizada. O teste avaliou sua resistência para experimentos In Vivo de até quinze dias com o DAV implantado em bezerro. Uma superfície de endotélio natural tem excelente tromboresistência. A quantidade e as características da neointima formada em um DAV são determinadas pela superfície do material, hemodinâmica e condições físico-patológicas. O implante de patch na aorta abdominal de porco isola as variáveis que normalmente estão presentes durante a utilização do DAV e que interferem na hemocompatibilidade do material. A avaliação das características do material foi obtida com o seu implante na parede da aorta descendente em contato com o fluxo sanguíneo. Diferentes tipos de superfície de contato foram avaliadas em sete experimentos In Vivo. Este estudo está voltado para as reações de interface sangue / material. Um estudo histológico foi realizado ao final de cada experimento para analisar as interações entre o sangue e o material, quantificando e qualificando a intima neo formada sobre a superfície de contato, calcificação e deposições de elementos constituintes do sangue / It has been developed a high lifetime and biocompatible diaphragm to be used in a Left Ventricle Assist Device (LVAD) that is a reduced dimension totally implantable electromechanical device. It has been performed an endurance test on a textured diaphragm made of polyurethane. This test has evaluated the diaphragm resistance to be used in In Vivo tests with the LVAD implanted for fifteen days in calves. A natural endothelial cell surface has excellent thromboresistant characteristics. The quantity and the characteristics of the neointima formed into LVAD are determined by the material surface, hemodynamics of the blood through the device, and the physico-pathological conditions. The patch implantation into the abdominal aorta of pigs has isolated some normal variables that usually are present during LVAD utilization and that may interfere on the material biocompatibility. The evaluation of the material’s characteristics has been enhanced through its implantation at the descending aorta wall in contact with blood flow. Different kinds of contact surfaces of specific polyurethane are tested in seven In Vivo experiments. This study is totally focused in the reaction of the blood-material interface. A histogical study is performed in the end of every animal experiment to analyze the interactions between blood and biomaterial. It’s emphasized the quantification and qualification of the neointima over the blood contact surface, calcification, and blood depositions
75

Évaluation des bénéfices thérapeutiques apportés par l’hypothermie dans le traitement du choc cardiogénique sous ECMO chez l’animal / Moderate hypothermia improves cardiac and vascular function in a pig model of ischemic cardiogenic shock treated with veno arterial ECMO

Vanhuyse, Fabrice 15 December 2017 (has links)
Le choc cardiogénique est une pathologie grave pouvant mettre rapidement le pronostic vital du patient en jeu. Malgré de nombreux progrès réalisés dans sa prise en charge, la mortalité liée à cette affection reste très élevée. Une des avancées importantes dans le traitement du choc cardiogénique développée ces dernières années est l’ECMO. Mais force est de constater, que malgré la restauration d’un flux circulatoire adéquat, nous restons confrontés à une mortalité élevée chez ces malades. La première partie de cette thèse est un rappel des principaux concepts du choc cardiogénique de l’ECMO ainsi qu’un rappel des effets de l’hypothermie. Nous rapportons dans la deuxième partie notre recherche expérimentale chez le cochon qui a permis de mettre en évidence un effet bénéfique de l’hypothermie sur la fonction cardiaque et sur la réactivité vasculaire chez les animaux en choc cardiogénique traités par une ECMO. Dans la troisième partie, nous discutons et analysons nos résultats en essayant d’apporter des explications physiologiques / Cardiogenic shock is still considered as a severe medical condition. Despite much progress in the treatment of the cardiogenic shock, this disease is still associated with a high mortality. An important advance in the treatment of the cardiogenic shock is the use of ECMO. However, despite the restoration of a proper circulatory flow, we are still facing significant mortality in these patients. The first part of this manuscript is a reminder of the main concepts of the cardiogenic shock and ECMO and the concept of hypothermia. In the second part, we report the results of our experimental research who highlighted a beneficial effect of hypothermia in cardiac function and vascular reactivity in animals in cardiogenic shock treated by ECMO. In the third part we discuss our results and we try to rapport physiological explications of our results
76

Experimental Evaluation and Characterization of a Mobility Assist Device Physical Interface

Levesque, Laurent De B 04 April 2018 (has links)
Ageing is linked to a decrease in mobility, which affects the quality of life of many elderly individuals. This is a growing challenge in industrialised societies since the proportion of elderly individuals is becoming larger. One potential solution that would keep these individuals active and independent is the use of mobility assist devices. These devices are designed to reduce the energy demand of the user with the use of electric motors providing torques at joints of the lower limb. Although promising, these devices have a problem: they become uncomfortable after prolonged usage. This is especially true for devices designed to produce substantial assistance. The research goal consisted of quantifying the performance of the physical interfaces, or points of attachments, of an experimental device with multiple interface adjustments. The device was fabricated with design criteria similar to active assist devices to simulate the mechanical behaviour of these particular devices. This analysis provided design recommendations that could ultimately enhance the performance of assist devices available on the market and thus the quality of life of many individuals. This research used force mapping and motion capture to quantify the kinetic and the kinematic compatibility of the device. Experimental results have shown that the position, shape and other parameters of the interfaces had an effect on the relative movement of the brace, or the brace performance. The device interface migration was greater when the interfaces were positioned furthest away form the joint. An increasing level of assistance showed more relative movement between the brace and the user. Interface geometry had a noticeable effect on force distribution over the interface. The results and methodology of this research offers an in depth understanding of the mechanical behavior of the physical interfaces of the developed assist device. Nevertheless, further research and development in the field of human machine interactions are needed in order to develop a physical human-machine interface that will ensure the success of powered assist devices in the future.
77

Emprego da anastomose cavo-pulmonar associada a assistência ventricular esquerda com bomba centrífuga em modelo experimental de disfunção biventricular / Cavo-pulmonary anastomosis associated to centrifugal pump left ventricle assistance in a experimental model of biventricular heart failure

Succi, Guilherme de Menezes 14 July 2008 (has links)
Introdução: A utilização de dispositivos de assistência ventricular esquerda (DAVE) proporciona melhor manejo dos pacientes que necessitam de métodos alternativos como ponte para o transplante cardíaco. Parcela significativa dos pacientes sob uso de DAVE desenvolve falência de ventrículo direito (VD), com elevada mortalidade. Propusemos estudo experimental para desenvolvimento de método de descompressão do VD em pacientes sob assistência mecânica esquerda e disfunção biventricular. Método: Foi realizado estudo experimental em cães adultos, com disfunção biventricular em fibrilação ventricular, mantidos em uso de DAVE com bomba centrífuga. Os animais foram divididos em dois grupos. No Grupo A, foi realizada descompressão do VD através de anastomose cavo-pulmonar, com anastomose da veia cava superior na artéria pulmonar direita. No grupo B, não foi realizado o \"shunt\". Após o preparo inicial foi iniciada assistência circulatória átrio esquerdo-aorta. Foram realizadas medidas hemodinâmicas e laboratoriais no momento inicial e aos 30, 60 e 90 minutos de assistência nos dois grupos. Resultados: Os dados hemodinâmicos e laboratoriais iniciais foram semelhantes nos dois grupos. No Grupo A, houve melhora da pressão arterial media (p<0,0001) durante a assistência. O fluxo pulmonar também foi maior no grupo A (p<0,0001), resultando em maior fluxo na bomba centrífuga, principalmente aos 90 min(1,2L/min X 0,5L/min, p<0,0001). A dosagem de lactato sérico no último momento de estudo foi menor no grupo A (27,6mg/dL versus 47,6mg/dL, p<0,05). Conclusão: Concluímos que a anastomose cavo-pulmonar promove descompressão do VD em modelo de disfunção bi-ventricular aguda sob assistência circulatória isolada do ventrículo esquerdo. A descompressão do VD leva a aumento do fluxo pulmonar e melhor desempenho hemodinâmico da assistência ao ventrículo esquerdo. / Introduction: The use of Left Ventricular Assist Devices promotes better clinical handling of patients in the need of alternative methods as bridge to heart transplant. A significant part of them develop right ventricle failure, leading to high death incidence. We have proposed an experimental study for the development of a method to decompress the right ventricle in biventricular failure patients under Left Ventricular Assist Devices . Method: Experimental study with adult dogs with acute biventricular failure in ventricular fibrillation under left assist device by centrifugal pump. The animals were divided in 2 groups. In Group A decompression of RV was made by cavo-pulmonary anastomosis between superior vena cava and right pulmonary artery. In Group B the anastomosis was not performed. After initial preparation left atrium-aorta circulatory support begun. Hemodinamic and laboratory measures were taken at start time and at 30, 60 and 90 minutes of circulatory support. Results: Initial laboratory and haemodinamic data were similar in both groups. Group A had better mean arterial pressure during support(p<0,0001). Pulmonary blood flow was higher in Group A resulting in higher pump flow, mainly at 90 minutes(1,2L/minX0,5L/min, p<0,0001). Serum lactate was lower at 90 minutes in Group A(27,6mg/dL x 47,6mg/dL, p<0,05). Conclusion: We conclude that the cavo-pulmonary anastomosis led to right ventricle decompression in an experimental model of acute biventricular failure under isolated left ventricle circulatory support. The right ventricle decompression generated enhancement in pulmonary blood flow and better circulatory support performance.
78

Fragilidade no idoso internado e o significado de fragilidade para a equipe de enfermagem

Lana, Letice Dalla 17 October 2013 (has links)
Made available in DSpace on 2015-04-14T13:54:05Z (GMT). No. of bitstreams: 1 452219.pdf: 1453324 bytes, checksum: 98a507fc83ff16002d7bfddc8094c849 (MD5) Previous issue date: 2013-10-17 / Fragility Syndrome Aging is a clinical syndrome that causes damage in the physical, psychological and social, leading to functional decline being determined by social risk factors, biological, environmental and psychological. Objective: To detect the presence of the syndrome of frailty in elderly in patients and the definition of fragility in the perception of professional nursing in the emergency department. Methodology: A quantitative cross-sectional and elderly aged over 60 years and nurses of the Emergency Department of the S?o Lucas Hospital. Scale was applied to Edmonton to fragility and specific questionnaire for the elderly and Teixeira Scale for nurses. The data were analyzed using the Student t test, chi-square test or the Fisher exact Poisson regression model. The significance level was 5%. The study was approved by the Research Ethics Comeettee of PUCRS under number 139242. Results: Both groups showed a mean age of 72.81?8.29 years, ranging from 60 to 92 years, 55.2% male, 41.1% were married, 81% live with family, 72.4 % retirees or pensioners, 87.7% of patients with previous disease and with an average of 3.81 medications per day. The majority of elderly patients (66.26%) is situated in the range classed as moderate and severe weakness, 25 (15.34%) with mild weakness, 29 (17.79%) with moderate brittleness and 79 (48,47% ) with severe weakness. The factors associated with frailty were age (PR = 1.21, 95% CI: 1.03 to 1.42), marital status (PR = 1.19, 95% CI :1,02-1, 37), use of medications (PR = 1.16, 95% CI 1.02 to 1.31), infectious diseases (PR = 1.17, 95% CI 1.03 to 1.32), neoplasms (PR = 1.22, 95 %: 1.06 to 1.42) and hospital stay of one or two times in the last year (PR = 1.35, 95% CI 1.15 to 1.58) (PR = 1.30, 95% CI: 1, 10 to 1.53). Regarding the sample of 12 nurses, there was a group of average age 29?3.3 years, ranging between 23 and 34 years, with 83.3% female, 58.3% single, 66.7% natural from Porto Alegre city and 58.3% without post graduation completed. Nurses to be fragile, should be the criterion vulnerability to environmental stress, disease and falls (100%), have comorbidities (91.7%), at an advanced age (83.4%) and perform fewer social activities (75%). Regarding the characteristics of fragility must be unintentional weight loss (100%), self-reported fatigue (75%), decreased grip strength (66.7%), reduction of physical activity (91.7%), cognitive impairment (83.3%), depression (100%) and reduction of social relations (100%). Consequences of weakness involving the decline of functional capacity (100%), hospitalization (58.3%), disability (58.3%) and death (58.3%). Conclusion: The fragility is important public health problem and demand more studies focusing on its definition targeting assistance on the part of health professionals with quality and effectiveness. / A S?ndrome da Fragilidade do Idoso ? uma s?ndrome cl?nica que gera preju?zos nos dom?nios f?sico, psicol?gico e social, levando ao decl?nio funcional sendo determinada por fatores de risco sociais, biol?gicos, ambientais e psicol?gicos. Objetivo: Detectar a presen?a da s?ndrome de fragilidade nos idosos internados e a defini??o de fragilidade na percep??o do profissional de enfermagem no Pronto Atendimento. Metodologia: Estudo quantitativo e transversal com idosos com idade igual ou superior a 60 anos e profissionais enfermeiros do Pronto Atendimento do Hospital S?o Lucas da PUCRS. Foi aplicada a Escala de Edmonton para fragilidade e question?rio espec?fico para os idosos e a Escala de Teixeira para os enfermeiros. Os dados foram analisados atrav?s do teste t de Student, teste qui-quadrado de Pearson ou exato de Fisher pelo modelo de Regress?o de Poisson. O n?vel de signific?ncia adotado foi de 5%. O estudo foi aprovado pelo Comit? de ?tica em Pesquisa da PUCRS sob o n?mero 139242. Resultados: Os idosos mostraram uma m?dia de idade de 72,81?8,29 anos, variando de 60 a 92 anos, 55,2% do sexo masculino, 41,1% casados, 81% residem com a fam?lia, 72,4% aposentados ou pensionistas, 87,7% portadores de doen?a pr?via e com uma m?dia de 3,81 medicamentos por dia. A maior parte dos idosos (66,26%) est? situada na faixa classificada como fragilidade moderada e severa, 25 (15,34%) com fragilidade leve, 29 (17,79%) com fragilidade moderada e 79 (48,47%) com fragilidade severa. Os fatores associados ? fragilidade foram idade (RP=1,21; IC 95%:1,03 1,42), estado civil (RP= 1,19; IC95%:1,02-1,37), uso de medica??es (RP=1,16; IC95%:1,02 1,31), doen?as infecciosas (RP= 1,17; IC95%:1,03 1,32), neoplasias (RP= 1,22; IC95%: 1,06 1,42) e interna??o de uma ou duas vezes no ?ltimo ano (RP=1,35; IC95%: 1,15 1,58) (RP= 1,30; IC95%: 1,10 1,53). Em rela??o ? amostra dos 12 enfermeiros, verificou-se uma idade m?dia et?ria de 29?3,3 anos, variando entre 23 e 34 anos, com 83,3% do sexo feminino, 58,3% solteiros, 66,7% naturais da cidade de Porto Alegre e 58,3% sem p?s gradua??o conclu?da. Para os enfermeiros para ser fr?gil, deve haver o crit?rio vulnerabilidade aos estresses ambientais, patologias e quedas (100%), apresentar comorbidades (91,7%), ter idade avan?ada (83,4%) e realizar poucas atividades sociais (75%). Quanto ?s caracter?sticas de fragilidade deve haver perda de peso n?o intencional (100%), auto-relato de fadiga (75%), diminui??o da for?a de preens?o palmar (66,7%), redu??o das atividades f?sicas (91,7%), d?ficit cognitivo (83,3%), depress?o (100%) e diminui??o das rela??es sociais (100%). As consequ?ncias da fragilidade envolvem o decl?nio da capacidade funcional (100%), hospitaliza??o (58,3%), incapacidade (58,3%) e o ?bito (58,3%). Conclus?o: A fragilidade ? importante problema de sa?de p?blica e demanda maiores estudos com foco na sua defini??o visando uma assist?ncia por parte dos profissionais de sa?de com qualidade e efetividade.
79

Protagonismo popular e prote??o social no CRAS : a indissociabilidade desse movimento em debate

Jardim, Alana Fernanda de Medeiros 17 January 2017 (has links)
Submitted by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-04-07T18:20:43Z No. of bitstreams: 1 DIS_ALANA_FERNANDA_DE_MEDEIROS_JARDIM_COMPLETO.pdf: 1020602 bytes, checksum: a8c4629b52da052d17c91e5f20df9f8f (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2017-04-07T18:21:25Z (GMT) No. of bitstreams: 1 DIS_ALANA_FERNANDA_DE_MEDEIROS_JARDIM_COMPLETO.pdf: 1020602 bytes, checksum: a8c4629b52da052d17c91e5f20df9f8f (MD5) / Made available in DSpace on 2017-04-07T18:21:35Z (GMT). No. of bitstreams: 1 DIS_ALANA_FERNANDA_DE_MEDEIROS_JARDIM_COMPLETO.pdf: 1020602 bytes, checksum: a8c4629b52da052d17c91e5f20df9f8f (MD5) Previous issue date: 2017-01-17 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / El tema de este estudio son las acciones de movilizaci?n y participaci?n en la protecci?n social b?sica que ampl?an el papel popular bajo la pol?tica de asistencia social que delimita en el an?lisis de las acciones de los Centros de Referencia de Asistencia Social (CRAS) en la ciudad de Porto Alegre entre diciembre de 2011 y septiembre de 2016. Su principal objetivo analizar la movilizaci?n y la participaci?n en el CRAS desarrollado que se extienden el papel populares con el fin de contribuir a la discusi?n sobre el papel de la pol?tica en la construcci?n de espacios democr?ticos y los derechos de los estados . Se trata de una investigaci?n cualitativa anclado en el marco dial?ctico cr?tico que trata de explicar las conexiones entre pr?ctica natural en el equipo b?sico de protecci?n social y los desaf?os planteados a la pol?tica de asistencia social, en sus tiempos de las categor?as de an?lisis del m?todo dial?ctico: toda la contradicci?n y la historicidad. Con respecto al hecho de categor?as explicativas enumeran la Protecci?n Social, a priori, la participaci?n de la gente protagonismo. En la fase de an?lisis (contenido) surgido de las categor?as emp?ricas: Servicios Sociales, protagonismo y subalternidad y Territorio. La implantaci?n de la recogida de datos se divide en dos fases. En la primera fase de recopilaci?n de datos - se enviaron cuestionarios a los veinti?n a?os CRAS Porto Alegre para identificar las acciones desarrolladas dentro del per?odo definido y obtener la devoluci?n de nueve cuestionarios. En la segunda etapa de recolecci?n de datos entrevistas se llevaron a cabo en cuatro CRAS presentar acciones convergentes con el concepto de participaci?n y protagonismo popular. Como criterios de selecci?n de la muestra, busc? la diversidad de acciones. En consecuencia, en CRAS fue entrevistado un usuario y un trabajador que particip? en la planificaci?n o ejecuci?n de estas acciones, por un total de ocho entrevistas. Las entrevistas fueron de tipo semi-estructurado con guiones anteriores, grabado con el consentimiento de los participantes y posteriormente transcritas y analizadas. Los resultados de la encuesta muestran que el CRAS est?n desarrollando acciones que, efectivamente, est?n contribuyendo a la funci?n popular, mejorando de este modo la construcci?n de sujetos sociales y las autoridades locales, con ?nfasis en el conocimiento de los territorios. Destacamos los resultados de este estudio: el papel de los procesos y la subordinaci?n, as? como la violencia y la resistencia, y tambi?n intersectorial y la fragmentaci?n que, en tensi?n dial?ctica de los opuestos, est?n obstaculizando y potenciar estas acciones que se refieren estos actores de la comunidad en cuesti?n y la pol?tica de los trabajadores. / O tema deste estudo s?o as a??es de mobiliza??es e participa??o na prote??o social b?sica que ampliam o protagonismo popular no ?mbito da Pol?tica de Assist?ncia Social delimitando-se na an?lise das a??es dos Centros de Refer?ncia de Assist?ncia Social (CRAS) no munic?pio de Porto Alegre no per?odo entre dezembro de 2011 e setembro de 2016. Tem como objetivo geral analisar a??es de mobiliza??o e participa??o desenvolvidas nos CRAS que ampliem o protagonismo popular com intuito de contribuir para a discuss?o sobre o papel da pol?tica na constru??o de espa?os de democratiza??o e afirma??o de direitos. Trata-se de pesquisa qualitativa ancorada no referencial dial?tico cr?tico que visa explicitar as conex?es entre as pr?ticas singulares nos equipamentos de prote??o social b?sica e os desafios postos ? pol?tica de assist?ncia social em tempos de SUAS a partir das categorias de an?lise do m?todo dial?tico: a totalidade, a contradi??o, media??o e a historicidade. No que se refere ?s categorias explicativas da realidade elencou-se a priori Prote??o Social, Protagonismo Popular e Participa??o. Na fase de an?lise (de conte?do) emergiram as categorias emp?ricas: Assist?ncia Social, Protagonismo e Subalternidade e Territ?rio. A operacionaliza??o da coleta de dados foi dividida em duas fases. Na primeira fase da coleta de dados ? foram enviados question?rios a vinte e um CRAS de Porto Alegre para a identifica??o de a??es desenvolvidas dentro do per?odo delimitado e obtivemos o retorno de nove question?rios. J? na segunda etapa de coleta de dados foram realizadas entrevistas em quatro CRAS que apresentaram a??es convergentes com o conceito de participa??o e protagonismo popular. Como crit?rio de sele??o de amostra, buscou-se a diversidade de a??es. Nesse sentido, em CRAS foi entrevistado um usu?rio e um trabalhador que tenham participado do planejamento ou execu??o dessas a??es, totalizando oito entrevistas. Foram utilizadas entrevistas do tipo semi-estruturadas com roteiros pr?vios, gravadas com o consentimento dos pesquisados e posteriormente transcritas e analisadas. Os resultados da pesquisa demonstram que os CRAS v?m desenvolvendo a??es que, efetivamente, est?o contribuindo para o protagonismo popular, desse modo, potencializando a constru??o de sujeitos sociais e poderes locais com ?nfase no conhecimento dos territ?rios. Destacamos como achados desse estudo: os processos de protagonismo e subalternidade, assim como a viol?ncia e a resist?ncia, e ainda, a intersetorialidade e a fragmenta??o que, na tens?o dial?tica dos contr?rios, s?o os dificultadores e potencializadores dessas a??es com os quais se relacionam esses sujeitos protagonistas da comunidade bem como os trabalhadores da pol?tica.
80

O Projeto Rawlsiano de justi?a social para a sociedade dos povos

Zeifert, Anna Paula Bagetti 22 January 2018 (has links)
Submitted by PPG Filosofia (filosofia-pg@pucrs.br) on 2018-02-14T20:02:53Z No. of bitstreams: 1 Tese - Anna Paula Bagetti Zeifert.pdf: 1019814 bytes, checksum: f6e1bd5d69c2600dbb6641bd7be8750a (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2018-02-16T11:53:30Z (GMT) No. of bitstreams: 1 Tese - Anna Paula Bagetti Zeifert.pdf: 1019814 bytes, checksum: f6e1bd5d69c2600dbb6641bd7be8750a (MD5) / Made available in DSpace on 2018-02-16T11:58:44Z (GMT). No. of bitstreams: 1 Tese - Anna Paula Bagetti Zeifert.pdf: 1019814 bytes, checksum: f6e1bd5d69c2600dbb6641bd7be8750a (MD5) Previous issue date: 2018-01-22 / In this thesis we analyze the elements that involve the theory of social justice in Rawls, covering the three main works of the author - Theory of Justice, Political Liberalism and The Law of Peoples - with the aim of identifying, from the beginning, a social ideal social ideal), with a view to a full conception of justice. As a basis for the development of the research, the fundamental elements - basic structure and just social institutions, principles of justice and the idea of cooperation - that guide the conception of justice in Rawls, first for national societies and later in defense of a Peoples' Society. We have shown that throughout Rawlsian theory, implicitly or explicitly, both in national societies and in the Peoples' Society, a social ideal has always been present as a project for a full conception of justice. However, we note that The Law of Peoples's proposed social justice system faced even greater challenges because of pluralism and the need to architect a parallel process of justice (national and international). In the thesis, we argue that the social ideal that permeated the discussions at the national level was extended to the Peoples' Society as a way of promoting justice among peoples and bringing together societies that are in an unfavorable (burdened) situation. The Duty of Assistance, a principle built to govern relations between peoples, is the new element introduced by Rawls to guarantee and make feasible his social ideal within the framework of international society. We consider that this social ideal is anchored in the notion of basic structure and in the benefit of social cooperation, fundamental ideas of Rawlsian thought since A Theory. We argue that the idea of assistance among peoples does not pretend to be a global distributive justice project based on the principle of difference for national societies, but that the Duty of Assistance is the expression of the Rawlsian social ideal, now extended to Society of Peoples. / Na presente tese analisamos os elementos que envolvem a teoria da justi?a social em Rawls, perpassando as tr?s principais obras do autor - A Theory of Justice, Political Liberalism e The Law of Peoples ? com intuito de identificarmos, desde o princ?pio, um ideal social (social ideal), com vistas a uma concep??o plena de justi?a. Tomamos como base, para o desenvolvimento da pesquisa, os elementos fundamentais ? estrutura b?sica e institui??es sociais justas, princ?pios de justi?a e a ideia de coopera??o - que orientam a concep??o de justi?a em Rawls, primeiramente para as sociedades nacionais e, posteriormente, na defesa de uma Sociedade dos Povos. Demonstramos que ao longo da teoria rawlsiana, impl?cita ou explicitamente, tanto nas sociedades nacionais quanto na Sociedade dos Povos, sempre esteve presente um ideal social enquanto projeto para uma concep??o plena de justi?a. Todavia, constatamos que o The Law of Peoples o projeto de justi?a social proposto por Rawls enfrentou desafios ainda maiores devido ao fato do pluralismo e a necessidade de arquitetar um processo paralelo de justi?a (nacional e internacional). Na tese defendemos que o ideal social que permeou as discuss?es na esfera nacional foi estendido para a Sociedade dos Povos como forma de promover a justi?a entre os povos e aproximar sociedades que se encontram em situa??o desfavor?vel (oneradas). O Dever de Assist?ncia, princ?pio constru?do para reger as rela??es entre os povos, ? o elemento novo introduzido por Rawls para garantir e viabilizar o seu ideal social no ?mbito da sociedade internacional. Consideramos que esse ideal social est? ancorado na no??o de estrutura b?sica e no benef?cio da coopera??o social, ideias fundamentais do pensamento rawlsiano desde A Theory. Sustentamos como tese, que a ideia de assist?ncia entre os povos n?o tem como pretens?o um projeto de justi?a distributiva global nos moldes do princ?pio da diferen?a para as sociedades nacionais, mas que o Dever de Assist?ncia ? a express?o do ideal social rawlsiano, agora estendido a Sociedade dos Povos.

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