Estudo da sinterização do aço inox 316L reforçado com 3% Carbeto de Tântalo - TaC

The present work shows a contribution to the studies of development and solid sinterization of a metallic matrix composite MMC that has as starter materials 316L stainless steel atomized with water, and two different Tantalum Carbide TaC powders, with averages crystallite sizes of 13.78 nm and 40.66 nm. Aiming the metallic matrix s density and hardness increase was added different nanometric sizes of TaC by dispersion. The 316L stainless steel is an alloy largely used because it s high resistance to corrosion property. Although, its application is limited by the low wear resistance, consequence of its low hardness. Besides this, it shows low sinterability and it cannot be hardened by thermal treatments traditional methods because of the austenitic structure, face centered cubic, stabilized mainly in nickel presence. Steel samples added with TaC 3% wt (each sample with different type of carbide), following a mechanical milling route using conventional mill for 24 hours. Each one of the resulted samples, as well as the pure steel sample, were compacted at 700 MPa, room temperature, without any addictive, uniaxial tension, using a 5 mm diameter cylindrical mold, and quantity calculated to obtain compacted final average height of 5 mm. Subsequently, were sintered in vacuum atmosphere, temperature of 1290ºC, heating rate of 20ºC/min, using different soaking times of 30 and 60 min and cooled at room temperature. The sintered samples were submitted to density and micro-hardness analysis. The TaC reforced samples showed higher density values and an expressive hardness increase. The complementary analysis in optical microscope, scanning electronic microscope and X ray diffractometer, showed that the TaC, processed form, contributed with the hardness increase, by densification, itself hardness and grains growth control at the metallic matrix, segregating itself to the grain boarders

Plano de Desenvolvimento da Escola (PDE): o processo de implantação de uma nova proposta de descentralização em duas escolas da rede municipal de ensino de Natal de 1999 a 2002

The 1988 Constitution was the legal marc to define changes in Brazilian State with major importance to the layout of public politician. In that moment of redefinitions e openness to new ways the redemocratization, participation and decentralization of public school had as their starter the elementary school. This work focus on the manage of FUNDESCOLA, particularly one of its politics called PDE (Educational Development Plan) wich purpose is guarantee a better quality in teaching and spread out democracy throughout its methodology. It was chosen two public schools: Professor Ulisses de Góis and Antonio Campos. The theoretical and methodological orientation is based on the theory of participative democracy developed by authors such as Putnam and Pateman. They says that a cultural background precedes individual participation in society. The collected data (educational legislation, surveys with all sectors of schools and technicians of Natal educational secretary, and relevant documents of de institutions) showed that PDE. Implementation had opposite runnings in the schools studied. In one, as a consequence of bad preparations of its teachers to absorve its methodology, PDE failed. In another way, PDE achieved its goals, especially helping the structure of action plans of the school and the administrative organization making possible several pedagogic activities planned. The work concludes that the main factor the failure or success of PDE relies on the organizational (both political and pedagogical) structure of each school. This discovery implies three important guidelines when comes to formulation of public politicians: a) Constitution of school; b) the local actors who manages the actions; c) the colletive interest in taking part of decisions

Um sistema computacional para diagnosticar viroses de plantas usando a técnica de PCR com construção de primers espécie-específicos

It proposes a established computational solution in the development of a software to construct species-specific primers, used to improve the diagnosis of virus of plant for PCR. Primers are indispensable to PCR reaction, besides providing the specificity of the diagnosis. Primer is a synthetic, short, single stranded piece of DNA, used as a starter in PCR technique. It flanks the sequence desired to amplify. Species-specific primers indicate the well known region of beginning and ending where the polymerase enzyme is going to amplify on a certain species, i.e. it is specific for only a species. Thus, the main objective of this work is to automatize the process of choice of primers, optimizing the specificity of chosen primers by the traditional method

Avaliação da satisfação das usuárias sobre a atenção à saúde da mulher no Rio Grande do Norte

This work discusses the evaluation of the satisfaction of the users on the women health care focusing on the quality of the primary care in the State of Rio Grande do Norte-BR. The main objective of this research is evaluate the satisfaction of the users about the actions applied to women health in the primary health care in Rio Grande do Norte, observing the information available through the Programa de Melhoria do Acesso e da Qualidade da Atenção Básica (PMAQ-AB). The specific objectives are: the evaluation of aspects related to women health; the evaluation of the specific actions related to welcoming the pregnant and; the evaluation of the information related to the postpartum. This dissertation is characterized as an evaluative research made through a multicentric transversal study, using a quantitative approach, which is part of the External Evaluation of the PMAQ-AB in the State of Rio Grande do Norte, made by the Federal University of Rio Grande do Norte. Some secondary data of the interviews with the users who were in the Basic Health Units were used during the External Evaluation of the PMAQ-AB in Rio Grande do Norte. The sample was collected following these criteria: the users that were in the Basic Health Units to attend to any procedure; they must had used the services for at least one year; and they must had agreed to participate the research. The ones that were attending to the services for the first time and the ones that did not use the services for at least 12 months were excluded from the sample. To the data collection it was used a chart of variables/indicators with the following information to the analysis: Women Health Care, Specific Care of the Pregnant and Information about he postpartum. The descriptive analysis of the data were made through absolute and relative frequencies of the variables using the software Statistic Package for Social Sciences (SPSS) for Windows, version 22.0.0. The results show a positive picture of the satisfaction of the users about the actions of the primary healthcare in women health in the State of the Rio Grande do Norte. Another important analysis is the integration of the primary health care with other points of the Healthcare System aiming to reorient the Model of Healthcare as a starter of the access and quality of the services given to the users. Therefore, the evaluation of the satisfaction of the users in health care is essential among all the agents involved in the process of consolidation of the Unified Health System SUS. Also having the need of rethinking the professional practice, reorganizing the processes of work of the multiprofessional teams in health care, enabling financial resources, inputs and materials, planning and systematizing new actions of healthcare aiming to ensure a perfect health care to the people

“Oi, meu nome é Ana” - um estudo fenomenológico-existencial da experiência de mulheres com anorexia nervosa

This research deals with anorexia nervosa through the look of those who lived this experience. Eating Disorders have been presented as psychopathology increasingly recurrent in contemporary, being almost doubled incidence in the last 20 years, reaching mainly teenagers and bringing consequences and implications of various kinds. The literature points to the relevance of the current ideal of beauty, in which thinness is overvalued. In this case, the study’s objective was to understand, from an existential-phenomenological perspective, anorexia experience. Thus, when assessing the experience, seeking to understand the possible directions that the non-eating is for the person who lives such an experience. The study, of Heidegger's existential-phenomenological inspiration, used semi-structured interviews as a means of access to the experience. Female two people were interviewed, at the age of 17 and 30, began with a starter question ("How was, or how is, your anorexia experience?"), which allowed the interviewee to talk about their experience. For the selection of the study participant was publicized among health professionals, as well as in social networks and blogs, in which the research objectives and approaches have been made explicit. The field diary was also used as a methodological resource, seeking a greater approximation of the experiences of the interviewees and the researcher. The interviews were interpreted in the by Heidegger's hermeneutics. The meanings unveiled in the narratives revealed issues beyond the physical and pathological issue, being involved family, wishes, friends, experiences, life projects. The corporal, as thought by Martin Heidegger, became very present in the statements of the interviewees, as it is part of existence. Among the Heidegger´s ideas, emphasizes care, inhospitality, live, boredom, openness to possibilities and factuality, that might be discussed from interviewees' discourse, engendering reflections about their senses, in their lives.

“Oi, meu nome é Ana” - um estudo fenomenológico-existencial da experiência de mulheres com anorexia nervosa

This research deals with anorexia nervosa through the look of those who lived this experience. Eating Disorders have been presented as psychopathology increasingly recurrent in contemporary, being almost doubled incidence in the last 20 years, reaching mainly teenagers and bringing consequences and implications of various kinds. The literature points to the relevance of the current ideal of beauty, in which thinness is overvalued. In this case, the study’s objective was to understand, from an existential-phenomenological perspective, anorexia experience. Thus, when assessing the experience, seeking to understand the possible directions that the non-eating is for the person who lives such an experience. The study, of Heidegger's existential-phenomenological inspiration, used semi-structured interviews as a means of access to the experience. Female two people were interviewed, at the age of 17 and 30, began with a starter question ("How was, or how is, your anorexia experience?"), which allowed the interviewee to talk about their experience. For the selection of the study participant was publicized among health professionals, as well as in social networks and blogs, in which the research objectives and approaches have been made explicit. The field diary was also used as a methodological resource, seeking a greater approximation of the experiences of the interviewees and the researcher. The interviews were interpreted in the by Heidegger's hermeneutics. The meanings unveiled in the narratives revealed issues beyond the physical and pathological issue, being involved family, wishes, friends, experiences, life projects. The corporal, as thought by Martin Heidegger, became very present in the statements of the interviewees, as it is part of existence. Among the Heidegger´s ideas, emphasizes care, inhospitality, live, boredom, openness to possibilities and factuality, that might be discussed from interviewees' discourse, engendering reflections about their senses, in their lives.

Estudo da sinterização do aço inox 316L reforçado com 3% Carbeto de Tântalo - TaC

The present work shows a contribution to the studies of development and solid sinterization of a metallic matrix composite MMC that has as starter materials 316L stainless steel atomized with water, and two different Tantalum Carbide TaC powders, with averages crystallite sizes of 13.78 nm and 40.66 nm. Aiming the metallic matrix s density and hardness increase was added different nanometric sizes of TaC by dispersion. The 316L stainless steel is an alloy largely used because it s high resistance to corrosion property. Although, its application is limited by the low wear resistance, consequence of its low hardness. Besides this, it shows low sinterability and it cannot be hardened by thermal treatments traditional methods because of the austenitic structure, face centered cubic, stabilized mainly in nickel presence. Steel samples added with TaC 3% wt (each sample with different type of carbide), following a mechanical milling route using conventional mill for 24 hours. Each one of the resulted samples, as well as the pure steel sample, were compacted at 700 MPa, room temperature, without any addictive, uniaxial tension, using a 5 mm diameter cylindrical mold, and quantity calculated to obtain compacted final average height of 5 mm. Subsequently, were sintered in vacuum atmosphere, temperature of 1290ºC, heating rate of 20ºC/min, using different soaking times of 30 and 60 min and cooled at room temperature. The sintered samples were submitted to density and micro-hardness analysis. The TaC reforced samples showed higher density values and an expressive hardness increase. The complementary analysis in optical microscope, scanning electronic microscope and X ray diffractometer, showed that the TaC, processed form, contributed with the hardness increase, by densification, itself hardness and grains growth control at the metallic matrix, segregating itself to the grain boarders