Este trabalho analisa teórica e empiricamente a pretensão de legitimidade do agrupamento autodenominado Primeiro Comando da Capital (PCC) nos distritos periféricos do município de São Paulo (MSP) onde tem adquirido forte territorialização. Legitimidade aqui entendida enquanto um processo dinâmico travado no âmbito de relações de poder que envolve, de um lado, as autojustificações do PCC no exercício de suas práticas, especialmente no âmbito da regulação de condutas e resolução de conflitos, e, de outro, a possibilidade de seu reconhecimento pelos moradores e profissionais dessas localidades. No que concerne à operacionalização dessa regulação e arbitragem de conflitos, aborda-se centralmente a pretensão ao direito de matar acionado pelo PCC por meio dos debates ou tribunais do crime, a fim de evidenciar que o uso da força física é um dos pilares fundamentais de sustentação desse poder. De forma mais ampla, essa problemática é situada no contraponto aos limites do Estado em promover o monopólio legítimo do uso da força física na sociedade brasileira, seja devido à sua incompletude na promoção da segurança pública ou por sua atuação historicamente arbitrária e abusiva. Consiste em um estudo qualitativo que procura ressaltar a multiplicidade de efeitos produzidos pela presença de grupos criminosos (sob a normatividade do PCC) nessas localidades e as possibilidades de reconhecimento dos moradores e profissionais diante das práticas desses grupos. Considerando-se as ambiguidades que perpassam as relações entre o PCC, as forças de segurança estatais e os moradores e profissionais desses locais, sustenta-se que não é possível afirmar que o PCC é uma instância legítima perante a população e sim que há possibilidades de reconhecimento (em diferentes gradações) constituídas constantemente por meio dessas relações, o que tensiona, mas não desconstrói a legitimidade estatal enquanto expectativa sempre reatualizada. Nessa perspectiva, delimitam-se para fins analíticos três possibilidades, entendidas em suas interconexões: ausência de reconhecimento, atrelada ao medo e às situações de coação produzidas pelas práticas dessa instância de poder; reconhecimento situacional constituído nas brechas e limites da atuação estatal; e situação de reconhecimento, na qual se verifica uma maior consonância entre as concepções da população e as práticas de fazer justiça do PCC. No que concerne a esse último aspecto, ganha relevo as seletividades operantes no uso da força física no interior dos mecanismos de punição do PCC, conformando esse próprio uso como aspecto importante nas ponderações sobre a possibilidade de reconhecimento dessa instância de poder. Possibilidade que encerra conjuntamente às práticas de violência estatais extralegais (mas igualmente com pretensões de legitimidade) limites à constituição de um Estado democrático de Direito no país. / This study analyses theoretically and empirically the pretension of legitimacy of the criminal group self-titled Primeiro Comando da Capital (PCC) in peripheral districts of the city of Sao Paulo, places where the group is rooted. Legitimacy here is understood as a dynamic process that takes place within power relations that involves on the one hand the self-justification of PCC in the exercise of their practices, especially in the context of regulation of conduct and conflict resolution and on the other hand, the possibility of their recognition by residents and professionals in these locations. Regarding the operationalization of this regulation and arbitration of conflicts, the study focuses mainly the pretension of the \"right to kill\" claimed by the PCC through debates or criminal courts in order to show that the use of physical force is one of the sustaining pillars of this power. Broadly, this issue lays on the state limitation in promoting legitimate monopoly on the use of physical force in Brazilian society whether due to its incompleteness in promoting public safety or on its historically arbitrary and abusive action. It consists in a qualitative study that tries to highlight the multiplicity of effects produced by the presence of criminal groups (in the normativity of PCC) in these locations and the possibilities of recognition by residents and professionals on the practices of these groups. Taking into account the ambiguities that pervade the relations between the PCC, the state security forces, the residents and the professionals of these locations, it is argued that if it is not possible to say that the PCC is a legitimate instance to the population, it is possible to say that there are different degrees of recognition constantly formed by these relationships, which can damage but not tear down the state legitimacy as an expectation always updated. In this perspective, for analytical purposes we delimit three possibilities, understood in their interconnections: no recognition, linked to the fear and duress situations produced by the practices of this instance of power; situational recognition made in the gaps and limitations of state action; and situation of recognition, in which we can see a greater consonance between the views of the population and the practices of \"doing justice\" of the PCC. Regarding this last aspect, we should highlight the selectivity in the use of physical force within the PCC punishment mechanisms, since this use is an important aspect of the weightings of the possibility of recognition of this power instance. Possibility that appears, next to extra-legal state violence practices (but which also have the pretension of legitimacy), as a limit to the establishment of a democratic Rule of Law in the country.

The thesis presented consists of two parts: a theory and the empirical part. The theory is introduced with a brief survey of the history of the patient centred care followed with current trends in nursing. It is followed with the three key areas determining nursing care. The first one consists of the objective factors - the health care system. The second area is formed by the factors associated with the practical implementation of nursing. The third area is devoted to the role of the patient and his surroundings. Objective of the thesis: The mapping of the factors influencing patient-oriented care by the nursing staff and management in various health care institutions. Research group The research group consisted of 11 female respondents state-registered nurses, aged from 24 to 58 years of age. The respondents varied in their position, level of education, and specialization, and they worked in various health-care institutions. Among them, there were 6 registered nurses, 4 ward nurses, and 1 head nurse. The willingness to cooperate and the saturation of responses were principal in forming the research team in question. The way adopted for achieving of the objective A qualitative research method has been chosen to achieve the goal. The phenomenological focus of the work has led to the selection of the method. The data were collected using semi-structured interviews. The findings were further categorized and confronted with the source material to answer the research questions. Results The research confirms the nursing care is a complex phenomenon. The recently-adopted health care legislation shows a shift from the paternalistic concept of care on behalf of the right of the patient to self-determination. On the other hand, however, the principle of solidarity the basis of the health care system in the Czech Republic retains some paternalismus, and that can negatively affects the relationship of the patient to the nursing staff in some cases. The respondents are in agreement as to the notion of PCC but a single one respondent knows its concept. The possibility of putting the PCC in practice is hampered by a wide range of factors. According to the respondents, the major obstacle is the undernumerousness of the nursing staff, resulting in the omnipresent time stress. The excessive red-tape demands have been seen as the almost equally important factor, together with the lack of continuity of care, but also the fast-and-loose approach of some nurses. The evaluation of the cooperation between staff nurses at the bed and the nurses in senior positions differed. Staff nurses see the problem in cooperation with their superiors, lacking appreciation of their work. Management, i.e. head nurses and ward nurses are often seen as systemic obstacles. The research investigation also shows insufficient cooperation with the patient's family. Permanent changes in the nursing education concept are seen as a hindrance to the problem solution. Regretfully, the actual approach of a nurse often slides down from a vocation to a mere employment. Conclusion The problems identified in the healthcare system indicate a wide range of factors influencing the relations between the nursing staff and patients. Multidimensional patient care concepts and examples from our healthcare system illustrate how clinical, structural, and interpersonal factors can interact in the relations between nursing staff and patient. The PCC concept should enable any health-care provider to set ways to improvement the care rendered and to motivate the caring staff to adopting it.

O presente trabalho, baseado em pesquisa etnográfica desenvolvida em uma instituição de controle social, a Fundação Centro de Atendimento Socioeducativo ao Adolescente (Fundação CASA), debruça-se sobre o deslocamento do universo institucional ao longo do tempo, tendo como ponto de partida a criação da Fundação Nacional do Bem-Estar do Menor (FUNABEM), em pleno contexto de ditadura militar. Trata-se de etnografar o movimento ininterrupto da instituição, isto é, de vê-la a partir de uma perspectiva processual, atentando para as figurações sociais que emergem das relações estabelecidas entre os atores que circulam pelas distintas unidades de medida socioeducativa de internação. Tendo como base a reconstituição de três trajetórias, procura-se desvelar a dinâmica de funcionamento dos distintos espaços institucionais, iluminando as tensões que os caracterizam, bem como os incessantes embates travados entre os atores sociais que se movimentam em tal contexto. Se em um primeiro momento, nos defrontamos com os antigos espaços de internação, caracterizados, entre outros traços, pelas acentuadas disparidades de força entre os adolescentes e os funcionários, com o reordenamento do universo institucional, veremos que em algumas Unidades de Internação, conhecidas como cadeias dominadas, os internos tornam-se os principais responsáveis pela gestão da operação cotidiana de tais unidades. Espaços institucionais em que os adolescentes orientam as suas ações de acordo com os preceitos do Primeiro Comando da Capital (PCC), que, vale notar, também operam no sistema prisional, bem como nas periferias de São Paulo, o que torna evidente que tais territórios, ainda que hajam particularidades, encontram-se conectados, isto é, na mesma sintonia. / The present study is based on an etnographic research developed in a Social Control Institution known as Fundação Centro de Atendimento Socioeducativo ao Adolescente (Fundação CASA). It focuses on the shift in the institutional universe over time, considering the building of the Fundação Nacional do Bem-Estar do Menor (FUNABEM), amid the Military Dictatorship, its starting point. The ethnography aims to register the constant displacement in the institution, in other words, it looks at this movement from a process-like perspective, taking into account the social figurations that emerge from the relationship established among the social actors who roam through the social and educational measures at the Juvenile Detention Units. Based on the reconstitution of three trajectories, it seeks to reveal the dynamic and functioning of these distinct institutional spaces, bringing into the light the tensions which characterize them, as well as the unceasing disputes among the social actors who move in such context. If, at first, we are faced with the same old detention places characterized, among other features, by the wide contrast of power between teenagers and staff, leading to a rearrangement in the institutional universe, we also perceive that in some of those Juvenile Detention Units, known as cadeias dominadas, the inmates have become primarily responsible for managing the Units everyday operation. Institutional places where these teenagers guide their actions according to the rules of PCC (Primeiro Comando da Capital), which also operates in the jail system, as well as in the outskirts of São Paulo. This shows that those areas, although different and with their own specificities, are connected. In other words, they are on the same wavelength.

Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-09-01T12:21:37Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DISSETAÇAO_DEPOSITO.pdf: 1662534 bytes, checksum: 6bdb1ae293f1a65771c195438f64d3f0 (MD5) / Made available in DSpace on 2016-09-01T12:21:38Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) DISSETAÇAO_DEPOSITO.pdf: 1662534 bytes, checksum: 6bdb1ae293f1a65771c195438f64d3f0 (MD5) Previous issue date: 2016-03-09 / CAPEs / A artrite reumatóide (AR) é uma doença crônico-degenerativa, sistêmica, auto-imune. Atualmente, o anticorpo antipeptídeo citrulinado cíclico (Anti-PCC) é considerado o marcador mais importante para o diagnóstico preditivo e prognóstico da AR. Neste trabalho, desenvolveu-se um imunossensor eletroquímico para detecção do Anti-PCC, a partir da modificação da superfície de um eletrodo de carbono vítreo com nanocompósito de óxido de grafeno reduzido-polissulfona (Gor-PSF) o qual apresenta boas características de aumento da área eletrocatalítica e imobilização de moléculas biológicas. Foram realizados capturas de imagens micrográficas por microscopia eletrônica de varredura da superfície do eletrodo de trabalho antes e após sua modificação, pelas quais foi possível comprovar uma superfície lisa não modificada sem estruturas adsorvidas após limpeza física, e que a superfície modificada com Gor-PSF apresentou um recobrimento ideal de toda a superfície com a presença de uma estrutura esponjosa comprovando a modificação da área de trabalho. Para captura do Anti-PCC, antígenos citrulina (CCP-Ag) foram imobilizados sobre a superfície eletródica do nanocompósito por provável ligação covalente entre os grupos amino e carboxilícos presentes no CCP-Ag e no óxido de grafeno reduzido, respectivamente. A técnica de voltametria de onda quadrada (VOQ) foi empregada para detecção do Anti-PCC, produzindo um imunossensor livre de marcação. Observou-se que o GOR-PSF foi capaz de aumentar a corrente de pico anódico (Ipa) 2,2 vezes mais, comparado com o controle (sem GOR-PSF) demonstrando que o filme proporcionou melhor capacidade eletrocatalítica, sendo também estável (coeficiente de variação da corrente < 1 %) avaliado por submeter o eletrodo a 20 ciclos consecutivos de voltametria cíclica. O imunossensor proposto apresentou uma boa linearidade com r=0,983 (p<0.003; n = 5) e limite de detecção de 0,004 ng/mL de Anti-PCC. A plataforma sensora demonstrou propriedades desejáveis de estabilidade, sensibilidade e reprodutibilidade na detecção de Anti-PCC com perspectivas de desenvolvimento de dispositivos “point-of-care”. / Rheumatoid arthritis (RA) is a chronic degenerative disease, systemic, autoimmune. Currently, the cyclic citrullinated peptide (anti-CCP) is considered the most important predictive marker for the diagnosis and prognosis of RA. In this work, we developed an electrochemical immunosensor for the detection of anti-CCP, from the surface modification of a glassy carbon electrode with nanocomposite reduced-polysulfone graphene oxide (GOr-PSU) which has good rise characteristics of electrocatalytic area and immobilization of biological molecules. of micrographic images catches were performed by scanning electron microscopy of the surface of the working electrode before and after modification, by which it was possible to establish a smooth unmodified without adsorbed structures after physical cleaning, and that the modified surface with GOr-PSU presented an ideal coating the entire surface with the presence of a spongy structure confirming the modification of the work area. For capture of anti-CCP, citrulline antigens (Ag-CCP) were immobilized on the electrode surface of the nanocomposite probably due to covalent bond between the amino and carboxylic groups present in the CCP-Ag and the reduced graphene oxide, respectively. Square wave voltammetry technique (VOQ) was used for detection of anti-CCP producing a marking-free immunosensor. It was observed that the GOR-PSU was capable of increasing the anodic peak current (IPA) 2.2 times as compared with the control (without GOr-PSU) demonstrating that the electrocatalytic film provided better capacity also being stable (coefficient the variation of the current <1%) evaluated by subjecting the electrode 20 consecutive cycles of cyclic voltammetry. The proposed immunosensor exhibited good linearity with r = 0.983 (p <0.003; n = 5) and a detection limit of 0.004 ng / ml anti-CCP. The sensing platform demonstrated desirable properties of stability, sensitivity and reproducibility in the Anti-CCP detection with prospects of development of devices "point-of-care."

A polyhedral graph G is called PCC if every vertex of G has strictly positive combinatorial curvature and the graph is not a prism or antiprism. In this thesis it is shown that the maximum order of a 3-regular PCC graph is 132 and the 3-regular PCC graphs which match that bound are enumerated. A new PCC graph with two 39-faces and 208 vertices is constructed, matching the number of vertices of the largest PCC graphs discovered by Nicholson and Sneddon. A conjecture that there are no PCC graphs with faces of size larger than 39 is made, along with a proof that if there are no faces of size larger than 122, then there is an upper bound of 244 on the order of PCC graphs. / Graduate

The synthesis of precipitated calcium carbonate nanoparticles with the use of double water in oil emulsion has been developed. Restricting the mass of calcium ions present in the system makes it possible to predict particle size precipitated. A model was developed to calculate the concentration required to synthesize a desired particle size. This model took into account a coalescence factor. The coalescence factor is described at the probability of two emulsion droplets, with separate nucleation processes within them, colliding and forming one nucleation process. The Ca2+ ions diffused through the oil membrane into the emulsion droplets with (CaCO3)2- ions by concentration gradients and facilitated transport. The size and shape of precipitated calcium carbonate synthesized was confirmed using scanning electron microscope and light scattering. Particles ranging from 100 nm to 1200 nm have been synthesized using mass restriction. The effect of temperature on the crystalline structure of precipitated calcium carbonate was studied. This was done by x-ray diffraction, where it was found that calcite was the dominating crystalline structure.

Manufactured fine aggregates are a product created when rocks are crushed using a mechanical crusher. With the depletion of sources of natural sands, the usage of manufactured fine aggregates has increased. Manufactured fine aggregates have properties that differ from natural sands; for this reason, the plastic and hardened properties of concrete produced using manufactured fine aggregates differ from the properties of concrete made with natural sands. The main concrete properties affected by the usage of manufactured fine aggregates are skid resistance, workability, and finishability. The aim of this research project was to investigate how manufactured fine aggregates could be used in concrete pavements without causing workability or skid related issues. To improve the workability of concrete made with manufactured fine aggregates, the use of the optimized mixture proportioning method developed by the International Center for Aggregate Research (ICAR) was investigated. Results obtained from this testing were used to make recommendations on how the ICAR method for pavement concrete could be improved The goal of this research was to also develop laboratory tests that could reasonably predict skid performance of concrete pavements made with different types of sand. For this purpose concrete slabs made with different sands were evaluated for friction and texture using a circular texture meter (CTM), a dynamic friction tester (DFT), and a polisher. To ensure that the values obtained at the laboratory related to field performance, test sections constructed with 100% limestone sand and blended sands were evaluated. Laboratory and field test results for skid were used to identify aggregate tests that best correlates with concrete performance. Results show that the micro-Deval test for fine aggregates could be used to predict the polish resistance of concrete laboratory specimen. Results from field testing has shown that if limestone fine aggregates are not blended with siliceous sands, PCC pavements made with limestone sands on truck lanes could experience a large drop in skid resistance within a year of service. Results obtained from laboratory testing showed that blending a small quantity of siliceous sand with limestone sands considerably increased the skid resistance of concrete specimens. / text

Background: Preconception care (PCC) is highly recommended evidence-based intervention to optimize women’s health in particular and in so doing reduce the incidences of adverse pregnancy outcomes (APO). PCC targets modification of risk factors to APO occurring before and just at early weeks of conception. Nevertheless, in Ethiopia, the need to implement PCC as part of the continuums of the comprehensive Maternal, Neonatal and Child Health Care services is not yet studied. Purpose/Aim of the study: This study aimed to develop a guideline to assist the incorporation of PCC in Ethiopian health system thereby reduce the highly incident APOs in the country, which is the purpose of the study. Methodology: This study applied the explanatory sequential mixed method to determine the determinants to the non-implementation PCC in Ethiopia. In addition, a policy document analysis was conducted to identify the existence of policy guiding the implementation of PCC in Ethiopia. Finally, the study applied a Delphi technique to increase the utility and acceptance of the guideline developed. The study was guided by a theory based framework called a Framework for Determinants of Innovation Processes (FDOIP). RESULT: Nearly all (84.7%) of the healthcare providers (HCPs) never ever practiced PCC. Even among those who ever practiced, the majority (74%), practiced it poorly. More than two third (68.6%) had poor PCC knowledge. HCP’s with good PCC knowledge had likely hood of practicing PCC by four times greater than those with poor PCC knowledge (AOR=4.4, 95% CI: 2.5-7.6). The policy document analysis identified the absence of policy guiding the practice of PCC in Ethiopia. The HCP’s curriculums also didn’t include PCC. The determinants to non-implementation of PCC, as perceived by the qualitative study participants include absence of national PCC policy , absence of PCC guideline, lack of institutional PCC plan, presence of other competing demand, lack of laboratory facilities and setup, lack of accountable body, absence of Individual or organization introduced PCC to the country, absence of trained manpower on PCC, absence of known expert in PCC, Poor public awareness about preconception health and PCC, Unplanned Pregnancy and poor health seeking behaviour. CONCLUSION The study revealed the absence of a standard and complete PCC practices by the HCPs. Nearly all HCPs never ever implement PCC. Even those very few practitioners were found practicing PCC poorly that is in a substandard, incidental, and in an inconsistent way. There is no formal policy document guiding the implementation of in Ethiopia. The HCPs training curriculum didn’t include PCC. The guideline developed base on the study findings of the study recommended to incorporating PCC in Ethiopia health system. / Health Studies / D. Litt. et Phil. (Health Studies)

nÃo hà / The accelerated industrial development of recent decades has been touted as one of the most impacting factors on the environmental imbalance. For this reason, research has been developed aiming, among other objectives, the reuse of waste generated by industrial processes as raw materials or inputs in other processes. This study aims to investigate the viability of using waste generated by the combustion of coal in power plants as an additive in the production of gypsum parts for construction. Coal combustion products (CCP) are already being applied in the construction industry as an additive in concrete, but their use in gypsum masses is very limited, which motivated the current reseach project. Initially the influence of water by varying the addition on mass in 5 levels between 10 and 50% was evaluated in order choose the best ratio water / gypsum about the mechanical properties. The materials used were characterized by fluorescence spectroscopy X-ray (XRF), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and energy dispersive X-ray (EDS) and scanning electron microscopy (SEM). The production process used for making the specimens was the so-called UCOS (portuguese acronym for the initials of wetting, compaction and drying), with pressure of 10 MPa. Then, test pieces were prepared with incorporation of PCC to the mass of gypsum in 5 levels between 10 and 50% to analyze the influence of these additions on mechanical properties, which was evaluated by compression tests, hardness and three point bending. The results determined that the water/gypsum (a/g) that provides the best mechanical properties is 0.2, which is used in the evaluation stage of the specimens with addition of PCC. It was concluded that, in general, increasing the incorporation of the waste was damaging to the mechanical properties of the gypsum block. Nonetheless, the studied conditions meet the requirements of NBR 13207, except for the condition with incorporation of 50% of PCC. In general, the mechanical properties behaved in similarly conditions between 10 and 20% of PCC, but the evolution from 20 to 30% caused a significant decrease in the results. Thus, it is concluded that the condition of 20% PCC in plaster and ratio a/g 0,2 meets the standard, ensures recycling of waste and, due to the pressing process, has better mechanical strength compared to the usual products. / O acelerado desenvolvimento industrial das ultimas dÃcadas tem sido apontado como um dos fatores mais impactantes sobre o desequilÃbrio ambiental. Por esse motivo, pesquisas vÃm sendo desenvolvidas visando o reaproveitamento dos resÃduos gerados pelos processos produtivos industriais como matÃrias-primas ou insumos em outros processos. Este trabalho objetiva investigar a viabilidade de se utilizar um resÃduo gerado pela combustÃo de carvÃo mineral em usinas termoelÃtricas como aditivo na produÃÃo de peÃas de gesso para a construÃÃo civil. Este produto da combustÃo de carvÃo (PCC) jà vem sendo aplicado nas indÃstrias de construÃÃo civil como aditivo em cimento, porÃm sua utilizaÃÃo em massas de gesso à bastante restrita. Inicialmente foi avaliada a influÃncia da Ãgua pela variaÃÃo da sua adiÃÃo à massa de gesso em 5 nÃveis entre 10 e 50%, visando escolha da melhor relaÃÃo Ãgua/gesso quanto Ãs propriedades mecÃnicas. Os materiais utilizados foram caracterizados por espectroscopia de fluorescÃncia de raios-X (FRX), difraÃÃo de raios-X (DRX), espectroscopia de absorÃÃo no infravermelho por transformada de Fourier (FTIR) e de energia dispersiva de raios-X (EDS) e microscopia eletrÃnica de varredura (MEV).O processo produtivo utilizado para confecÃÃo dos corpos de prova foi o de Umedecimento, CompactaÃÃo e Secagem (UCOS), com pressÃo de 10 MPa. Em seguida, foram confeccionados corpos de prova com incorporaÃÃo de PCC à massa de gesso em 5 nÃveis, entre 10 e 50% com a finalidade de analisar a influÃncia dessas adiÃÃes sobre as propriedades mecÃnicas, o que foi avaliado por ensaios de compressÃo, dureza e flexÃo em trÃs pontos. Os resultados obtidos determinaram que a relaÃÃo Ãgua/gesso (a/g) que fornece as melhores propriedades mecÃnicas à a de 0,2, sendo esta utilizada na etapa de avaliaÃÃo dos corpos de prova com incorporaÃÃo de PCC. Concluiu-se que, em geral, a crescente incorporaÃÃo do resÃduo foi danosa Ãs propriedades mecÃnicas do bloco de gesso. NÃo obstante, as condiÃÃes estudadas atendem Ãs exigÃncias da NBR 13207, exceto a condiÃÃo com incorporaÃÃo de 50% de PCC. Em geral, as propriedades mecÃnicas se comportaram de forma semelhante entre as condiÃÃes com 10 e 20% de PCC, sendo que a evoluÃÃo de 20 para 30% gerou queda significativa nos resultados de resistÃncia mecÃnica. Com isso, conclui-se que a condiÃÃo de 20% de PCC em gesso e relaÃÃo a/g de 0,2 atende à norma, permite o reaproveitamento de resÃduos e, graÃas ao processo de prensagem, apresenta melhor resistÃncia mecÃnica comparada aos produtos usuais.

This thesis deals with the quality of service (QoS) mechanism in Evolved Packet System (EPS). The basic architecture and characteristics of the EPS are introduced. The concept of QoS is defined. Furthermore, QoS related entities, their functions and corresponding procedures are described. The methodology for measuring and evaluating of end-to-end QoS as seen from a user’s point of view is designed. This methodology is used to measure QoS of experimental cellular network at UTKO FEEC BUT. Finally, configuration change for optimizing the QoS support of experimental cellular network is designed.