Made available in DSpace on 2014-12-17T15:07:19Z (GMT). No. of bitstreams: 1 MariaKM_TESE.pdf: 3038556 bytes, checksum: 959c362d0d49e946b855e4fe4d1d94e9 (MD5) Previous issue date: 2014-02-04 / This research has as its theoretical and methodological assumptions (1) the Narrative Inquiry (CLANDININ; CONNELLY, 2011), (2) the Systemic Functional Grammar (HALLIDAY, 1985, 1994; THOMPSON, 2002; EGGINS, 1994; HALLIDAY; MATTHIESSEN, 2004) and (3) the English for Specific Purposes Approach (ESP - HUTCHINSON; WATERS, 1987; CELANI, 2005; RAMOS, 2005), and its overall objective is to survey the meanings construed by the participants who are ESP practitioners and have not received a specific education to teach this approach at their undergraduation. The field texts and therefore the analises were divided into two distinct groups: the first with data generated from a questionnaire applied to nine professors from a federal university in the northeast of Brazil, which contains open and closed questions about their training and their experiences in teaching ESP; the second group, focusing this time on the experiences of three professors from the first group who were still teaching ESP, with data generated from interviews with these participants in addition to the data generated from their autobiographies and from the researcher?s as well. The computational tool WordSmith Tools 6.0 (SCOTT, 2012) was used to select, organize, and quantify data to be analyzed in the first group of texts, identifying the types of Processes and Participants through the Transitivity System (HALLIDAY; MATTHIESSEN, 2004). The Processes which were more used by the professors in the questionnaire were the Material, followed by the Relational and then the Mental ones, indicating that most professors reported their actions related to the teaching of ESP, rated or evaluated the approach, their training to teach it and their experiences, hence, rarely showing their thoughts and emotions about teaching ESP. Most of the nine professors say they carry out needs analysis, but not all do it according to the authors cited by them or the ones that are considered a reference in this area, such as the ones used in this research as reference. Similarly, their definitions and conceptions of ESP, in most cases, differed from these authors. All the professors claim not having had specific education to teach ESP at the undergraduation. When examining the stories of the four teachers, in the second group of the field texts, based on meaning composition according to Ely, Vinz, Downing and Anzul (2001), it was revealed that the kind of knowledge they report using when they teach ESP is related to their Personal Practical Knowledge and their Professional Knowledge (ELBAZ, 1983; CLANDININ, 1988). In their autobiographies, metaphors were also identified and they represent their concepts of teaching and being a teacher. Through this research, we hope to contribute to the understanding of what teaching ESP might mean for professors in the researched context and also to the continuing education of ESP practitioners, as well as to a review of the curricula in the English language undergraduate courses and of the role of ESP in the training of these professionals / A presente pesquisa tem como pressupostos te?rico-metodol?gicos (1) a Pesquisa Narrativa (PN CLANDININ; CONNELLY, 2011), (2) a Gram?tica Sist?mico-Funcional (GSF HALLIDAY, 1985, 1994; THOMPSON, 2002; EGGINS, 1994; HALLIDAY; MATTHIESSEN, 2004) e (3) a abordagem de ensino de Ingl?s para Fins Espec?ficos (IFE HUTCHINSON; WATERS, 1987; CELANI, 2005; RAMOS, 2005), com o objetivo geral de fazer um levantamento dos sentidos constru?dos pelos professores participantes sobre o IFE, a forma??o espec?fica que receberam para ministr?-lo e a sua experi?ncia em ensin?-lo no n?vel superior. Os textos de campo e, por conseguinte, as an?lises, foram organizados em dois grupos distintos: o primeiro com dados gerados a partir de um question?rio aplicado a nove professores de uma institui??o p?blica no nordeste brasileiro, contendo perguntas abertas e fechadas a respeito de sua forma??o e de suas experi?ncias em ministrar a disciplina de Ingl?s Instrumental e o segundo grupo, a partir do enfoque nas experi?ncias de tr?s professoras do primeiro grupo que continuavam ensinando IFE, com dados gerados por entrevistas com essas participantes e por suas autobiografias, al?m dos dados gerados pela autobiografia da pr?pria pesquisadora, tamb?m participante da pesquisa. Foi usada a ferramenta computacional WordSmith Tools 6.0 (SCOTT, 2012) para selecionar, organizar e quantificar os dados a serem analisados no primeiro grupo de textos, identificando-se os tipos de Processos e os Participantes, pelo Sistema de Transitividade (HALLIDAY; MATTHIESSEN, 2004), sendo que os Processos mais usados pelos professores no question?rio foram os Materiais, seguidos dos Relacionais e em terceiro lugar os Mentais, indicando que a maioria relatou mais suas a??es com rela??o ao ensino de IFE, classificou ou definiu a abordagem, sua forma??o e suas experi?ncias do que demonstrou seus pensamentos e emo??es a respeito de ensinar IFE. A maioria dos nove professores afirma fazer a an?lise de necessidades, mas nem todos a fazem de acordo com o que estabelecem os autores por eles citados ou outros autores considerados refer?ncia nessa ?rea, tais como os que usamos nesta pesquisa. Do mesmo modo, suas defini??es e concep??es sobre IFE, na maioria das vezes, diferem das desses autores. Todos os professores participantes alegam n?o ter tido forma??o espec?fica para ensinar IFE na licenciatura. Ao analisar os relatos das quatro professoras do segundo grupo de textos de campo, com base na composi??o de sentidos segundo Ely, Vinz, Downing e Anzul (2001), percebeu-se que o tipo de conhecimento que estas referem usar para ministrar IFE est? relacionado ao Conhecimento Pr?tico Pessoal e ao Conhecimento Profissional (ELBAZ, 1983; CLANDININ, 1988). Em seus relatos, foram identificadas tamb?m imagens que representam suas concep??es a respeito de ensinar e ser professora. Esperamos, atrav?s desta pesquisa, contribuir tanto para a compreens?o do que pode significar ensinar IFE para os professores do contexto pesquisado, como para a forma??o continuada de professores de IFE, assim como para uma revis?o nos curr?culos de Letras e do papel do IFE na forma??o do professor de l?ngua inglesa

Made available in DSpace on 2014-12-17T15:14:49Z (GMT). No. of bitstreams: 1 AlzeyGF.pdf: 1374839 bytes, checksum: 04a6f9d10ed4cb9e18af438a89ba7f26 (MD5) Previous issue date: 2008-10-02 / Systems whose spectra are fractals or multifractals have received a lot of attention in recent years. The complete understanding of the behavior of many physical properties of these systems is still far from being complete because of the complexity of such systems. Thus, new applications and new methods of study of their spectra have been proposed and consequently a light has been thrown on their properties, enabling a better understanding of these systems. We present in this work initially the basic and necessary theoretical framework regarding the calculation of energy spectrum of elementary excitations in some systems, especially in quasiperiodic ones. Later we show, by using the Schr?odinger equation in tight-binding approximation, the results for the specific heat of electrons within the statistical mechanics of Boltzmann-Gibbs for one-dimensional quasiperiodic systems, growth by following the Fibonacci and Double Period rules. Structures of this type have already been exploited enough, however the use of non-extensive statistical mechanics proposed by Constantino Tsallis is well suited to systems that have a fractal profile, and therefore our main objective was to apply it to the calculation of thermodynamical quantities, by extending a little more the understanding of the properties of these systems. Accordingly, we calculate, analytical and numerically, the generalized specific heat of electrons in one-dimensional quasiperiodic systems (quasicrystals) generated by the Fibonacci and Double Period sequences. The electronic spectra were obtained by solving the Schr?odinger equation in the tight-binding approach. Numerical results are presented for the two types of systems with different values of the parameter of nonextensivity q / Sistemas cujos espectros s?o fractais ou multifractais t?m sido bastante estudados nos ?ltimos anos. O entendimento completo do comportamento de muitas propriedades f?sicas destes sistemas ainda est? longe de ser completamente efetivado devido ? complexidade dos pr?prios sistemas. Desta maneira, novas aplica??es e novos m?todos de estudo dos seus espectros t?m sido feitos, possibilitando uma melhor compreens?o acerca desses sistemas. Apresentamos neste trabalho de disserta??o inicialmente todo o arcabou?o te?rico b?sico e necess?rio no tocante ? obten??o dos espectros de energia de excita??es elementares em alguns sistemas, mais especificamente nos sistemas quasiperi?dicos. Posteriormente mostramos, usando a equa??o de Schrodinger na aproxima??o de liga??o forte, os resultados para o calor espec?fico de el?trons com a mec?nica estat?stica de Boltzmann-Gibbs para sistemas quasiperi?dicos unidimensionais tipo Fibonacci e Per?odo Duplo. Estruturas desse tipo j? foram bastante exploradas, no entanto o uso da mec?nica estat?stica n?o-extensiva proposta por Constantino Tsallis ? bem adequado para sistemas que apresentam de alguma forma um perfil fractal, e portanto nosso principal objetivo foi aplic?-la para o c?lculo de grandezas termodin?micas ampliando um pouco mais a compreens?o das propriedades desses sistemas. Neste sentido, calculamos anal?tica e numericamente o calor espec?fico generalizado de el?etrons em sistemas quasiperi?dicos unidimensionais (quasicristais) gerados pelas sequ?ncias de Fibonacci e Per?odo Duplo. Os espectros eletr?nicos foram obtidos fazendo-se uso tamb?m da equa??o de Schrodinger na aproxima??o de liga??o forte. Resultados num?ricos s?o apresentados para os dois tipos de sistemas com diferentes valores do par?metro de n?o-extensividade q