1000 resultados para elementos traços
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This paper examines two aspects. First, the symbolic dimension of politics and some of the elements that make up this universe, as the scenario, the representation, the myth, the spectacle, the media and the political and electoral marketing. We assume that the policy brings together a set of traits related to both reason and the human subjectivity, and can not be summed up in just a few calculations based on rationality. In the case of elections, in a process (ritual, according Irlys Barrier) of choice, there is a meeting of two systems of representations: to that transmitted by a political actor, in a scene from a particular context, based on a life trajectory unique, and the other from the public, crossed by social relations, situations own wishes, desires, expectations and unique perspectives. Between them there are the means of mass media (especially television), and with them the advent of language media and advertising applied to politics, changing the layout of public visibility and inaugurating what Rejane Accioly Carvalho will call the "aesthetics of mostrabilidade". This does not necessarily mean a preponderance of media on politics as a whole but only its adaptation to that with regard to contact with the public, the ad extra portion of the policy, according to Wilson Gomes. In a second aspect, try to apply these elements to a specific study to verify them in building an effective public image, in this case, the current governor of Rio Grande do Norte, Wilma de Faria. The concept of public image is from the book of Wilson Gomes The transformation was visible in the mass media, and relates to a conceptual image to fix "personality traits" through political history, personal conduct, action of image makers and the public reception. For this we will review some videos aired on Free Time for political propaganda in the years 2002 and 2006.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
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It discusses the Health Care of the Elderly in the town of Mossoró, traversing the paths that discussed the history of health care, which has been altered by the new (con) formation and required adjustments of society which led the development and implementation of the National Health Care for the Elderly with the backdrop of the guiding principles of the Health System - SUS. The goals outlined were: To map the implementation of the policy of health care for the elderly in Mossoró considering whether this is based on the principles and guidelines of the NHS and National Health Policy of the Elderly; Check if health promotion is seen as a strategy that favors the elderly mossoroenses the possibility of healthy aging; identify the discourse of the elderly about the aging process and the strategies you use to take care of your needs. Applies as a methodological strategy BOAS, complemented by interviews with twenty (20) elderly residents of Mossoró with a view to understand the objective elements, and the political and subjective traits that express a regularity which marks the area of health care mossoroense elderly. The data were tabulated and the BOAS divided into nine sections for analysis. The speeches were transcribed seized and subjected to a thorough reading that allowed the visualization of issues that have been examined with theoretical and methodological support to the model proposed by Boaventura de Souza Santos (2006) designated this cosmopolitan reason being supported by three meta-sociological procedures, namely, the sociology of absences, the sociology of translation work and emergencies. It appears as a result the exclusion and discrimination of the elderly in different social settings, a condition that prevents them from being aware of their importance as citizens deserving of decent treatment and respect for the family, society and the government, when addressing health the elderly said the need to propose alternative models of care that has the paradigm of health promotion. We conclude that in these areas, meetings are held, to draw lines that were heterogeneous because they were built by the dissimilarities that engender incessantly and show that although we have advanced regarding the attention of the elderly in Mossoró there is still a long way to go in order to meet the needs revealed by the elderly. It is suggested that the practice of trial-creation-differentiation, while highlighting the historical and procedural dimension, deconstructions and negotiations with collective effects. A democratic paradigm and analytical creeps: the constitution are moments of Health Care for the Elderly shaping a new landscape in the town of Mossoró.
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Trabalho sobre a concretização dos direitos fundamentais pela jurisdição constitucional, mostrando a importância da interpretação da Constituição para a obtenção da eficácia de tais direitos. Desenvolve-se a pesquisa a partir da explicação histórica sobre o constitucionalismo moderno, que implantou o Estado Liberal de Direito e as constituições escritas, e no qual encontra a jurisdição constitucional o seu embasamento cultural e a sua justificação histórica. Verifica-se que a origem da jurisdição constitucional assenta-se no controle da constitucionalidade das leis e atos normativos do poder público, fundado no princípio da supremacia da Constituição. Destaca-se o realce dado pela teoria material da Constituição à normatividade dos princípios constitucionais, tecendo considerações em torno da classificação das normas constitucionais em regras e princípios. Remarca o trabalho que o controle da constitucionalidade pode ser formal ou material, apresentando esta última modalidade uma conotação acentuadamente política, já que, por ele, a aferição da compatibilidade da norma infraconstitucional é feita com o conteúdo material da Constituição. A função primacial da jurisdição constitucional é tutelar os direitos fundamentais, especialmente os das minorias sociais. Tal função sobreleva-se até mesmo contra textos legislativos produzidos por maiorias eventuais, pois o princípio da supremacia da Constituição prevalece sobre a regra da maioria vigente nos regimes democráticos. Comprova-se que a concepção substancialista, adotada para definir os contornos funcionais da jurisdição constitucional, propõe uma maior intervenção desta na apreciação dos casos que lhe são submetidos. Salienta-se que, no Estado Democrático de Direito, derivado da aglutinação do Estado Liberal com o Estado Social e acrescida de um elemento novo voltado à transformação da realidade social, a jurisdição constitucional passa a levar em conta, com mais atenção e destaque, os princípios constitucionais e a sincronia do ordenamento constitucional com a sociedade por ele ordenada. Realça também o estudo que a atuação da jurisdição constitucional, segundo a ideologia democrática defendida pelo Estado Democrático de Direito, tem logrado obter uma sociedade mais justa, e que a comprovação histórica é francamente favorável ao seu ativismo judicial. Os direitos fundamentais dificilmente se dissociam da democracia, que lhes garante a eficácia pela limitação e visibilidade do exercício do poder, traços políticos que constituem a nota típica dos regimes democráticos. Mesmo que os direitos fundamentais tenham tido um caráter pré-estatal como preconizado pelo jusnaturalismo, são eles normas, e não valores, pois tão logo sejam positivados pela Constituição eles se tornam direitos vigentes. Assevera a pesquisa que os métodos concretistas de interpretação constitucional mostram-se mais adequados à obtenção da eficácia da Constituição, pela importância que os elementos objetivos, relacionados com o contexto material da norma, assumem no seu processo de aplicação e interpretação. Conclui-se ser essencial que os operadores e estudiosos do Direito se conscientizem de que a interpretação constitucional deve assumir uma feição principiológica e concretista, de modo a ser obtida a máxima eficácia possível das normas constitucionais, especialmente as de direitos fundamentais, acentuando-se mais a necessidade de um Tribunal Constitucional, cuja criação no Brasil constitui ainda tema polêmico entre os doutrinadores
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This work is located at the shield of research that defends the use of Mathematics History, based on the utilization of historical artifacts at teaching activities, at Mathematics classrooms, and at graduation courses for teachers of Elementary School and of the first grades of High School. The general objective is to examine the possibility of the use of historical artifacts, at teaching activities, at graduation courses for teachers of Elementary School and of the first grades of High School. Artifact, at this work, is comprehended as objects, documents, monuments, images and other kinds of materials that make sense to the Human actions at the past and that represent what have been said and done at the Human history. At the construction of the theoretical-methodological way of the research we have based ourselves upon the ideas of the authors that are engaged at the teachers formation; at researchers adherents to the use of Mathematics History (MH) as a methodological resource, and at studies accomplished that elucidate the role of the artifacts at the history and as a mediatory element of learning. We defend the thesis that the utilization of historical artifacts at teaching activities enables the increasing of the knowledge, the development of competencies and essential abilities to the teacher acting, as well as interact at different areas of the knowledge, that provides a conception of formation where the teacher improves his learning, learning-doing and learning-being. We have adopted a qualitative research approach with a theoretical and pratic study disposition about the elements that contribute to the teachers works at the classroom, emphasizing the role of the Mathematics history at the teacher s formation and as a pedagogical resource at the mathematics classroom; the knowledge, the competencies and abilities of the historical artifacts as an integrative link between the different areas of the knowledge. As result, we emphasize that the proposition of using the MH, through learning activities, at the course of teacher graduation is relevant, because it allows the investigation of ideas that originate the knowledge generated at every social context, considering the contribution of the social and cultural, political and economical aspects at this construction, making easy the dialog among the areas and inside of each one The historical artifact represents a research source that can be deciphered, comprehended, questioned, extracting from it information about knowledge of the past, trace and vestiges of the culture when it was created, consisting of a testimony of a period. These aspects grant to it consideration to be explored as a mediatory element of the learning. The artifacts incorporated at teaching activities of the graduation courses for teachers promote changes on the view about the Mathematics teaching, in view of to privilege the active participation of the student at the construction of his knowledge, at the reflection about the action that has been accomplished, promoting stimulus so the teachers can create their own artifacts, and offer, either, traces linking the Mathematics with others knowledge areas.
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This work is based on a reflection about my personal and professional background as a teacher and a pedagogical supervisor in two public schools in the municipality of Natal, RN, and how relevant this background is to the development of a proposal of continued formation within the scope of the school, in which a diversity of actionreflection strategies are present. In such contexts, I have identified several of my personality traits as being likely advantages or disadvantages that may contribute or not to the coming up of misunderstanding situations. The self-research experience and the identification of new dimensions of self-evaluation, self-observation and attention serve as a basis to think about the importance of experiencing the understanding within the ambit of the school. The reflections about my actions and those of the teachers bring up the hypothesis that the misunderstandings in the teaching-learning process and in the affective relations are the result of a fragmented, naive and egotistic way of thinking. Thus, they don t contribute to an experience of mutual understanding. That is why there must be an investment on new strategies of self-research and dialogue within the scope of pedagogical meetings that may come to help all educators with the analysis, identification and solving of their own problems as well as the other s. Under this perspective, the question that guides this study assumes the presupposition that the educator can invest in a qualified and meaningful pedagogical formation, either one s own and others , if one has a critical-reflexive overview about oneself and the school s pedagogical process. This research aims to explore, discuss and encourage new reflections about the act of researching in the pedagogical supervisor s role, questioning about the possibility of this action to generate contributions to the process of one s own and other s pedagogical formation within the scope of the school, in a conscientiological perspective, in which the manifestation of the thosenes of the educators are valorized. We approach Paulo Freire (1921-1997), as we see the dialogue as very important to the development of this research work, as well as an encouragement to the consciential dialogue. The empirical research took place from June 4, 2004 to November 11, 2004, with 8 pedagogical meetings and with the participation of 2 pedagogical supervisors and 8 teachers. The application of this new methodology within the scope of pedagogical meetings brought considerable contributions to the interpretation of the elements of the educators thosenes, classified according to the following: uncritical, naïve and critical thoughts; sentiments of assistential or non-assistential affectivity; and actions that may or not make the experience of mutual understanding possible. The action of the pedagogical supervisor and one s contributions to the understanding brought up reflections about new ways of investing in the process of continued formation within the scope of the school
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Esta tesis (desarrollada en la Base de Pesquisa, Formação e Profissionalização Docente da UFRN) concentra su ámbito de interés en el problema de la formación, de la profesionalización del pensamiento del profesor, buscando investigar las Teorías Implícitas de los estudiantes del Curso de Pedagogía sobre la docencia en los años iniciales de la Enseñanza Fundamental. La emergente necesidad de términos acceso a las Teorías Implícitas de estudiantes de Pedagogía (futuros profesores) sobre la docencia en los años iniciales de la Enseñanza Fundamental, a través de un instrumento de pesquisa que posibilite su aplicación en varios contextos formativos para contribuir con su proceso de profesionalización docente, constituye el problema analizado. La pesquisa tiene como objetivo elaborar un instrumento investigativo para estudiar las Teorías Implícitas de los profesores sobre la docencia en los años iniciales de la Enseñaza Fundamental. La complejidad del estudio nos ha llevado a integrar diferentes procedimientos metodológicos, según orientación del paradigma sociocultural, tales como: estudios exploratorios, a través de la revisión bibliográfica de la literatura especializada y técnica de trabajo creativo en grupo; técnicas normativas y psicométricas. A través de los estudios exploratorios identificamos y configuramos tres teorías profesionales de la docencia en los años iniciales de la Enseñanza Fundamental, las cuales presentan una importante relación con el Estado: la docencia como actividad laica, la docencia como actividad técnica y la docencia como actividad profesional. Para la configuración de la teorías, definimos siete subdominios estructurales de la docencia: función docente, concepción de aluno, contenidos de enseñanza, gestión de aula de clase, proceso formativo, condiciones de trabajo y naturaleza del grupo profesional. El cuestionario normativo ha sido el instrumento orientado para investigar las representaciones de los estudiantes a nivel de conocimientos establecidos y reglamentados por la cultura, como condición básica para investigar sus Teorías Implícitas sobre a docencia. El estudio ha constatado que los subdominios determinados para la comprensión del objeto de estudio están presentes, de manera reincidente, en la literatura especializada como los son representativos en las identificaciones de los estudiantes investigados. Hemos concluido que las teorías configuradas para caracterizar la profesión docente en los años iniciales de la Enseñanza Fundamental hacen parte de la estructura de conocimientos de los estudiantes sobre la docencia, aunque los enunciados de las teorías, como actividad laica y como actividad técnica, no presente índice de tipicidad y de polaridad muy significativo cuanto aquellos relativos a la teoría de la docencia como actividad profesional. Las Teorías Implícitas de los estudiantes enseñan que ellos comparten elementos o rasgos de todas las teorías de la docencia, aunque se revelen más predispuestos a la docencia como actividad profesional. El estudio orienta la aplicación del cuestionario reglamentado a un grupo de profesores actuantes en el nivel de enseñanza en cuestión, para que averigüemos si los enunciados que hacen parte de la estructura de conocimientos de los profesores son los mismos que componen la estructura de conocimiento de los estudiantes, de modo a fortalecer la validación de nuestro instrumento de pesquisa
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This study is part of the line of research on Teacher Education, circumscribed to the Graduate Program in Education of Federal University Rio Grande do Norte. In it, we have a qualitative research, whose object returned to the influence of continued education in social representation of inclusive education of Elementary School teachers. The same was done in an Elementary School of Cruzeiro do Sul city (Brasil/Acre) and performed with the participation of 11 teachers. We assume that thinking a continuing education inclusive presupposes reflect on the redefinition and resignification of practices undertaken by the teacher. Therefore, the teacher education is conceived as a continuum in which the teacher will be graduating in forming, shaping their way of being in social situations. We argue that in the context of interactions, we are going to reconstruct social representations that guide actions and attitudes about the objects that have meaning for the group. It was with the aim of identify the influence of these social representations and at the same time submit a proposal for continuing training in structured formative needs teachers who made use of collaborative action research. Since we believe that this can either meet the assumptions of a research and vocational training to enable that researcher and other teachers, collectively, problematizing situations of practice and, at the same time able to intervene in the same it. As procedures for obtaining information and analysis of the data, we performed, respectively, semi-structured interviews (individual and collective); reflective studies sessions and the analysis of content. The path of research revealed two social representations integrated one of inclusive education and another for student with disabilities. We noticed that although the teachers criticize the character sealed and limited of continued education courses that have frequented, reveal social representations of inclusive education and students with disabilities based on theories and concepts originated from such courses. As a result, represent inclusive education as an "education for all" and student with disabilities as someone "abnormal, different, but able to learn something . It is possible to state that from the moment the teachers approched theories about the principles of inclusive education and on the possibilities of student with disabilities took new discourses, and showed signs of change in the social representations before presented. In addition, we evidenced in this production that a proposal for training within the school, fomented by the needs teachers and having as methodology to collaborative action research, provides the (re)construction of collective knowledges and practices, sharing of experiences, hopes, discoveries and concerns and the development of cooperation and attitude for the (re)development of strategies to overcome the difficulties present in everyday teaching
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The present work deals with the linear analysis of bi-dimensional axisymmetric structures, through development and implementation of a Finite Element Method code. The structures are initially studied alone and afterwards compatibilized into coupled structures, that is, assemblages, including tanks and pressure vessels. Examples are analysed and, in order to prove accuracy, the results were compared with those furnished by the analytical solutions
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This work presents the positional nonlinear geometric formulation for trusses using different strain measures. The positional formulation presents an alternative approach for nonlinear problems. This formulation considers nodal positions as variables of the nonlinear system instead of displacements (widely found in literature). The work also describes the arc-length method used for tracing equilibrium paths with snap-through and snap-back. Numerical applications for trusses already established in the literature and comparisons with other studies are provided to prove the accuracy of the proposed formulation
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In this thesis, a frequency selective surface (FSS) consists of a two-dimensional periodic structure mounted on a dielectric substrate, which is capable of selecting signals in one or more frequency bands of interest. In search of better performance, more compact dimensions, low cost manufacturing, among other characteristics, these periodic structures have been continually optimized over time. Due to its spectral characteristics, which are similar to band-stop or band-pass filters, the FSSs have been studied and used in several applications for more than four decades. The design of an FSS with a periodic structure composed by pre-fractal elements facilitates the tuning of these spatial filters and the adjustment of its electromagnetic parameters, enabling a compact design which generally has a stable frequency response and superior performance relative to its euclidean counterpart. The unique properties of geometric fractals have shown to be useful, mainly in the production of antennas and frequency selective surfaces, enabling innovative solutions and commercial applications in microwave range. In recent applications, the FSSs modify the indoor propagation environments (emerging concept called wireless building ). In this context, the use of pre-fractal elements has also shown promising results, allowing a more effective filtering of more than one frequency band with a single-layer structure. This thesis approaches the design of FSSs using pre-fractal elements based on Vicsek, Peano and teragons geometries, which act as band-stop spatial filters. The transmission properties of the periodic surfaces are analyzed to design compact and efficient devices with stable frequency responses, applicable to microwave frequency range and suitable for use in indoor communications. The results are discussed in terms of the electromagnetic effect resulting from the variation of parameters such as: fractal iteration number (or fractal level), scale factor, fractal dimension and periodicity of FSS, according the pre-fractal element applied on the surface. The analysis of the fractal dimension s influence on the resonant properties of a FSS is a new contribution in relation to researches about microwave devices that use fractal geometry. Due to its own characteristics and the geometric shape of the Peano pre-fractal elements, the reconfiguration possibility of these structures is also investigated and discussed. This thesis also approaches, the construction of efficient selective filters with new configurations of teragons pre-fractal patches, proposed to control the WLAN coverage in indoor environments by rejecting the signals in the bands of 2.4~2.5 GHz (IEEE 802.11 b) and 5.0~6.0 GHz (IEEE 802.11a). The FSSs are initially analyzed through simulations performed by commercial software s: Ansoft DesignerTM and HFSSTM. The fractal design methodology is validated by experimental characterization of the built prototypes, using alternatively, different measurement setups, with commercial horn antennas and microstrip monopoles fabricated for low cost measurements
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This thesis describes design methodologies for frequency selective surfaces (FSSs) composed of periodic arrays of pre-fractals metallic patches on single-layer dielectrics (FR4, RT/duroid). Shapes presented by Sierpinski island and T fractal geometries are exploited to the simple design of efficient band-stop spatial filters with applications in the range of microwaves. Initial results are discussed in terms of the electromagnetic effect resulting from the variation of parameters such as, fractal iteration number (or fractal level), fractal iteration factor, and periodicity of FSS, depending on the used pre-fractal element (Sierpinski island or T fractal). The transmission properties of these proposed periodic arrays are investigated through simulations performed by Ansoft DesignerTM and Ansoft HFSSTM commercial softwares that run full-wave methods. To validate the employed methodology, FSS prototypes are selected for fabrication and measurement. The obtained results point to interesting features for FSS spatial filters: compactness, with high values of frequency compression factor; as well as stable frequency responses at oblique incidence of plane waves. This thesis also approaches, as it main focus, the application of an alternative electromagnetic (EM) optimization technique for analysis and synthesis of FSSs with fractal motifs. In application examples of this technique, Vicsek and Sierpinski pre-fractal elements are used in the optimal design of FSS structures. Based on computational intelligence tools, the proposed technique overcomes the high computational cost associated to the full-wave parametric analyzes. To this end, fast and accurate multilayer perceptron (MLP) neural network models are developed using different parameters as design input variables. These neural network models aim to calculate the cost function in the iterations of population-based search algorithms. Continuous genetic algorithm (GA), particle swarm optimization (PSO), and bees algorithm (BA) are used for FSSs optimization with specific resonant frequency and bandwidth. The performance of these algorithms is compared in terms of computational cost and numerical convergence. Consistent results can be verified by the excellent agreement obtained between simulations and measurements related to FSS prototypes built with a given fractal iteration
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This work aims to present how the application of fractal geometry to the elements of a log-periodic array can become a good alternative when one wants to reduce the size of the array. Two types of log-periodic arrays were proposed: one with fed by microstrip line and other fed by electromagnetic coupling. To the elements of these arrays were applied fractal Koch contours, at two levels. In order to validate the results obtained some prototypes were built, which were measured on a vector network analyzer and simulated in a software, for comparison. The results presented reductions of 60% in the total area of the arrays, for both types. By analyzing the graphs of return loss, it was observed that the application of fractal contours made different resonant frequencies appear in the arrays. Furthermore, a good agreement was observed between simulated and measured results. The array with feeding by electromagnetic coupling presented, after application of fractal contours, radiation pattern with more smooth forms than the array with feeding by microstrip line
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As informações da avaliação de mecanismos de abertura de sulco de semeadoras de plantio direto auxiliam as empresas no dimensionamento de ferramentas rompedoras do solo, que buscam menor requerimento energético. Este trabalho foi realizado num solo classificado como Latossolo Vermelho com o objetivo de avaliar tridimensionalmente os esforços dos mecanismos de abertura de sulco de semeadoras adubadoras de plantio direto. O delineamento experimental utilizado foi o de blocos ao acaso com cinco tratamentos, sendo cinco mecanismos de abertura de sulco (disco liso - DL, disco corrugado - DC, disco ondulado - DO, disco duplo - DD e haste sulcadora - H). Para mensurar os esforços dos mecanismos de abertura de sulco, foi utilizado um dinamômetro com sensibilidade nas direções horizontal, transversal e vertical e no momento fletor e torsor. A avaliação mostrou que a interação entre mecanismos de abertura de sulco e carga vertical não foi significativa, entretanto os fatores foram significativos quando analisados individualmente. O resultado individual dos mecanismos de abertura de sulco mostrou que o disco ondulado proporcionou maior área de mobilização do solo, a haste sulcadora apresentou o menor valor de força vertical e o disco duplo e a haste sulcadora obtiveram o menor esforço horizontal.
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This work presents the analysis of an antenna of fractal microstrip of Koch with dielectric multilayers and inclinations in the ground plane, whose values of the angles are zero degree (without inclinations), three, seven and twelve degrees. This antenna consists of three dielectric layers arranged vertically on each other, using feeding microstrip line in patch 1, of the first layer, which will feed the remaining patches of the upper layers by electromagnetic coupling. The objective of this work is to analyze the effects caused by increase of the angle of inclination of the ground plane in some antenna parameters such as return loss, resonant frequency, bandwidth and radiation pattern. The presented results demonstrate that with the increase of the inclination angle it is possible to get antennas with characteristics multiband, with bigger bandwidth, and improving the impedance matching for each case analyzed, especially the larger angle