17 resultados para Radioterapia - Teses
Resumo:
VITULLO, Nadia Aurora Vanti. Avaliao do banco de dissertaes e teses da Associao Brasileira de Antropologia: uma anlise cienciomtrica. 2001. 143 f. Dissertaao (Mestrado) - Curso de Mestrado em Biblioteconomia e Cincia da Informao, Pontifcia Universidade Catlica de Campinas, Campinas, 2001.
Resumo:
OLIVEIRA, Raimundo Muniz de. Biblioteca digital de teses e dissertaoes: uma referencia fundamental. In: CINFORM ENCONTRO NACIONAL DE ENSINO E PESQUISA DA INFORMAAO,HUMANISMO E DESENVOLVIMENTO CIENTIFICO E TECNOLOGICO,7.,2007,Salvador. Anais...Salvador:UFBA, 2007.Disponivel em:www.cinform.ufba.br>. Acesso em: 27 set. 2007. Acesso em: 27 set. 2010.
Resumo:
CUNHA, Jacqueline de Arajo. Biblioteca Digital de Teses e Dissertaes: uma estratgia de preservao da memria cientfica. 2009. 141f. Dissertao (Mestrado)- Programa de Ps-Graduao em Cincia da Informao. Universidade Federal da Paraba, Joo Pessoa, 2009.
Resumo:
A pesquisa aborda o uso das Tecnologias de Informao e Comunicao, que vem revolucionando as atividades e ocasionando muitas mudanas relacionadas ao acesso e uso de informaes. O objetivo foi analisar o grau de utilizao do conhecimento cientfico produzido pelos Programas de Ps-Graduao das Universidades Pblicas Brasileiras, atravs da BDTD, pelos mestrandos dos referidos programas. Nos procedimentos metodolgicos realizados, procurou-se inicialmente analisar o amplo espectro da populao do corpus da pesquisa. Em razo da impossibilidade de trabalhar com os Programas de Ps-Graduao como um todo, optou-se por fazer um recorte, elegendo os cursos de Ps-Graduao em Cincia da Informao, vez que estes representam o principal segmento social de interesse da pesquisa. Foi utilizado o mtodo de estudo de usurios, onde se optou por adotar o grupo, estudos orientados aos usurios, que identifica as necessidades e comportamento de acesso e uso da informao. Para coletar os dados, elaborou-se um questionrio semi-estruturado com 25 questes, que versavam sobre o uso, dificuldades de acesso e recuperao da informao, bem como a satisfao na utilizao dessa fonte informacional. Dentre os vrios resultados obtidos, podemos destacar o fato de que a maioria dos mestrandos (71,8%) s teve contato com a BDTD somente no momento em que se encontrava cursando o mestrado e, somente 24,3%, tiveram contato durante a graduao. Estes resultados representam um problema, que pode afetar o bom desempenho do projeto BDTD, o qual consiste em disseminar e divulgar a produo cientfica dos Programas de Ps-Graduao das Universidades Pblicas Brasileiras para a sua comunidade. Foi observado tambm, que os mestrandos oriundos do curso de Biblioteconomia tende a ter contato com a BDTD bem mais cedo do que mestrandos de outros cursos de graduao. A fim de minimizar o problema detectado, prope-se uma divulgao mais eficaz na graduao atravs de dois procedimentos: Primeiro, o docente deve fazer uma divulgao mais eficaz da BDTD junto aos discentes de todos os cursos de graduao; segundo: dever ser feita a divulgao na mdia eletrnica, atravs da insero de cones da BDTD, nos portais dos Departamentos dos Cursos de Graduao das Universidades Pblicas Brasileiras. Acredita-se que com estes procedimentos seja possvel aperfeioar o uso dessa fonte de informao cientfica.
Bibliotecas digitais de teses e dissertaes brasileiras: paradigma do acesso livre informao cientfica
Resumo:
A evoluo da comunicao cientfica ao longo do tempo e o impacto causado pela A evoluo da comunicao cientfica ao longo do tempo e o impacto causado pela A evoluo da comunicao cientfica ao longo do tempo e o impacto causado pela se analisar as contribuies da Biblioteca Digital de Teses e Dissertaes (BDTD)para a comunicao cientfica atual, destacando possibilidades emergentes e desafios a serem superados. Apresenta uma breve evoluo da comunicao cientfica ao longo do tempo; discute os impactos causados pela Internet na comunicao, disponibilizao e acessibilidade de informaes tcnico-cientficas; e caracteriza BDTD destacando os desafios a serem superados. Dentre eles esto, a questo dos direitos autorais que ocasionam a baixa adeso dos autores ao projeto piloto do IBICT para disponibilizar teses e dissertaes no meio eletrnico. Para este desafio, so apontadas sugestes.
Resumo:
As bibliotecas de teses e dissertaes tm um papel fundamental para o desenvolvimento cientfico e cultural de um pas. Nesse sentido, buscou-se, de modo geral, analisar o panorama brasileiro das bibliotecas digitais de teses e dissertaes. Especificamente, objetivou-se caracterizar a sociedade da informao enquanto contexto das BDTD; caracterizar os vrios tipos de bibliotecas surgidos a partir da insero das novas tecnologias de informao e comunicao; identificar as diretrizes norteadoras da implantao de BDTD; e levantar as BDTD existentes no Brasil. Para tato, alm de levantamento bibliogrfico, realizou-se uma pesquisa nos sites de instituies de ensino superior brasileiras que j dispe de bibliotecas digitais de teses e dissertaes em funcionamento. A anlise e interpretao destes dados nos permite considerar que no Brasil as BDTD encontram-se num estgio embrionrio, sendo relevante pesquisar a histrica implantao e configurao desse novo modelo de biblioteca.
Resumo:
This work has the main purpose of conducting a survey of educational products present in dissertations and doctoral theses focused on the use of history in mathematics teaching and Didactics of mathematics with a French foundation produced in graduate programs in the strict sense of the Brazil between 1990 and 2010, the areas of Education, Mathematics Education, school of Natural Sciences and Mathematics and related areas, according to the research proposal of Mendes (2010). Our interest was to select the products that present concrete proposals for educational activities that can be used in the classroom of Basic Education and Training of Teachers of Mathematics. The research was implemented through a bibliographic study documents the Bank of dissertations and theses from CAPES, libraries and archives of some Postgraduate programs in the country who focus their studies on the subject object of this research, besides the Brazilian Digital Library Theses and Dissertations (BDBTD). From this survey we selected works that present educational products materialized in blocks of activities based on the use of teaching history of mathematics to the classroom as well as the sequence of activities based on the Teaching of Mathematics. In possession of material, produce a CD-ROM containing the selected activities, in order to help support the work of teachers regarding the use of these activities, as a supplementary material to textbooks in their math classes
Resumo:
The most common malignant neoplasm of the oral cavity and oropharynx are squamous cell carcinoma. Injuries to the same stage and subjected to the same treatment protocol have sometimes different evolutionary courses. The scope of this study was to investigate, through a retrospective cohort, associations between the number of CD8 + T cells and natural killer, identified immunohistochemically in the inflammatory infiltrate in a series of cases of oral squamous cell carcinoma and orofaringeano, and the level of tumor response to radiotherapy and chemotherapy, overall survival and relapse-free survival of patients. We identified 54 patients with unresectable disease were treated exclusively with radiotherapy and chemotherapy. The median follow-up was 22 months. The sample was characterized by the predominance of male subjects, median age 60 years, all were smokers. The most frequent site was the tongue and 81.5% were in stage IV. Patients with disease in the oral cavity had a worse response to treatment (p = 0.006), worse relapse-free survival (p = 0.007), worse overall survival (p = 0.007). The advanced T stage was shown a negative prognostic factor (p= 0.006) for the clinical treatment response made. Immunohistochemistry was performed to select CD8 + cells (anti-CD8) and NK cells (anti-CD57). Lymphocytes positive and negative markings were counted using the program ImageJ . Two groups were created for each marking evaluated: Group I patients with more than 50% cells positive, Group II: less than 50% of labeled cells. For CD8 + cells detected in 38 (70.3%) of Group I were CD8 + and 16 (29.7%) Group II CD8 +. For NK cells, 26 (48.15%) Group I NK and 28 (51.85%) Group II NK. Regarding the clinical response to treatment, we observed that 39% of patients achieved a complete response and 25.9% remained without recurrence at the end of follow-up. These results were better in Group I CD8 + (p = 0.2). Identified that 72.2% of patients progressed to death, this finding had no association with the immunohistochemical data. There was no statistically significant differences between the number of CD8 + and NK cells and the ability of tumor response to radiotherapy and chemotherapy, or with overall survival and relapse-free survival of patients. However, especially in relation to a learned response, we found that this group of patients with advanced disease have a low count of CD8 + T cells active. Believing in the role that the immune response plays in the local fight against neoplastic cells, however, our results do not support the use of quantitative analysis of CD8 + T cells and NK cells as a prognostic factors for oral squamous cell carcinoma and oropharynx
Resumo:
This work performs an algorithmic study of optimization of a conformal radiotherapy plan treatment. Initially we show: an overview about cancer, radiotherapy and the physics of interaction of ionizing radiation with matery. A proposal for optimization of a plan of treatment in radiotherapy is developed in a systematic way. We show the paradigm of multicriteria problem, the concept of Pareto optimum and Pareto dominance. A generic optimization model for radioterapic treatment is proposed. We construct the input of the model, estimate the dose given by the radiation using the dose matrix, and show the objective function for the model. The complexity of optimization models in radiotherapy treatment is typically NP which justifyis the use of heuristic methods. We propose three distinct methods: MOGA, MOSA e MOTS. The project of these three metaheuristic procedures is shown. For each procedures follows: a brief motivation, the algorithm itself and the method for tuning its parameters. The three method are applied to a concrete case and we confront their performances. Finally it is analyzed for each method: the quality of the Pareto sets, some solutions and the respective Pareto curves
Resumo:
This research aims to make a reflective analysis about the academic production originated in the stricto sensu post graduation programs in the country, produced in the period of 1990 to 2010, in the field of History of Mathematics, especifically on works about the History of Mathematics in Mathematics education and that present pedagogical proposals that make use of the History of Mathematics in order to teach Mathematics. Defending the thesis that the researches on mathematics education with goals turned to the use of didactic proposals related to the history of mathematic that take in consideration the coherency between epistemological aspects inherent to mathematics history and anthological elements materialized on the conceptions of mathematics and mathematics history and of apprenticeship (implicitly or explicitly exposed) may originate significant contribution to the field of history of mathematics on education. Among these, nine were Masters Degree dissertations and five PHDs theses. The reflective analysis was accomplished from two matrixes; one from theoretical nature and the other, ontologic nature, elaborated from the pretexts of Sanches Gamboa, about the epistemological analysis from academic production in the field of Mathematics Education and the following theoretical perspectives in the field of History of Mathematics Education, that are: linear evolutionary theory, structural construtivist operative, evolutionary discontinuous, historical and socialcultural investigation and the use of activities estimulating the usage of verbal and nonverbal expressions. These perspectives were based on the works of Miguel and Miorim, Mendes and Radford. As results, we have detected some established dissonances between the categories related to theoretical and ontologic levels and the pedagogical proposal presented in these researches. On the other hand, we have discovered works that are able to establish consonances between the theoretical and ontological elements and the presented pedagogical proposal. These works carry significative contributions to the field of History of Mathematics applied to Mathematics pedagogical practice, inclusively presenting significative theoretical elements to the production of knowledge recognized as scientific in the Mathematics field
Resumo:
This doctoral dissertationproposes the description, interpretation and analysis of the compositional structure of thesis and dissertation abstracts, with regard to the linguistic mechanisms that evidence text zones of different typological sequences, such as those of the text plan. Along these lines, the research problem was developed from the notion of compositional structure (sequences and text plans), as one of the levels or plans of text analysis, according to the theoretical framework proposed by Jean-Michel Adam (2011a). The main objective of this study was to recognize how the compositional structure, of thesis and dissertation abstracts, is achieved, with respect to text units and the global organization of this text category. The hypothesis posed in this research posits that specific informational text composition categories of abstracts are necessary to process the representation of the original text and the way in which it makes its meaning. Subsequently, this study is based on the theoretical and methodological framework of Text Linguistics (TL) and, above all, Textual Discourse Analysis (TDA), as we endeavor to understand the organizational structure of abstracts from both a linguistic and textual perspective. This structure involves the text plan of abstracts, with respect to their communicative purpose, i.e, the sharing of scientific information in its standard textual form. Thus, the development of this study, from a theoretical and methodological perspective, is based on the theoretical and descriptive premises from TDA (ADAM, 2011a, 2012; PASSEGGI et al., 2010), and also from TL (BEAUGRANDE; DRESSLER, (2012 [1981]); COSERIU; LAMAS (2010); MARCUSCHI, 2009 [1983]; FVERO; KOCH, 1994;KOCH, 2006; BENTES, 2004; BENTES; LEITE, 2010), within the field of text studies. The methodology of this study relies on empirical, documental research, which is qualitative, and adopts a descriptive and interpretive approach. From the empirical perspective, our objective is to understand the problems pertaining to the textual composition of abstracts, aiming to elucidate them in light of the theoretical and methodological framework previously mentioned. The corpus of the analysis is comprised of seven abstracts designated for systematic data collection. These texts, written between 2004 and 2011,were selected from Masters theses and Doctoral dissertations in their electronic version, from the graduate program at the Federal University of Rio Grande do Norte. A thorough review of the literature reveals a clear fluctuation in the terminology of the concept, abstract. The results of the analysis revealed that the abstracts, which comprise the corpus of analysis in this study, in general, present typological heterogeneity, while the text plan remains fixed. Finally, the new knowledge gained in this research contributes both to the understanding of the compositional structure of abstracts as well as their production.
Resumo:
VITULLO, Nadia Aurora Vanti. Avaliao do banco de dissertaes e teses da Associao Brasileira de Antropologia: uma anlise cienciomtrica. 2001. 143 f. Dissertaao (Mestrado) - Curso de Mestrado em Biblioteconomia e Cincia da Informao, Pontifcia Universidade Catlica de Campinas, Campinas, 2001.
Resumo:
OLIVEIRA, Raimundo Muniz de. Biblioteca digital de teses e dissertaoes: uma referencia fundamental. In: CINFORM ENCONTRO NACIONAL DE ENSINO E PESQUISA DA INFORMAAO,HUMANISMO E DESENVOLVIMENTO CIENTIFICO E TECNOLOGICO,7.,2007,Salvador. Anais...Salvador:UFBA, 2007.Disponivel em:www.cinform.ufba.br>. Acesso em: 27 set. 2007. Acesso em: 27 set. 2010.
Resumo:
CUNHA, Jacqueline de Arajo. Biblioteca Digital de Teses e Dissertaes: uma estratgia de preservao da memria cientfica. 2009. 141f. Dissertao (Mestrado)- Programa de Ps-Graduao em Cincia da Informao. Universidade Federal da Paraba, Joo Pessoa, 2009.
Resumo:
A pesquisa aborda o uso das Tecnologias de Informao e Comunicao, que vem revolucionando as atividades e ocasionando muitas mudanas relacionadas ao acesso e uso de informaes. O objetivo foi analisar o grau de utilizao do conhecimento cientfico produzido pelos Programas de Ps-Graduao das Universidades Pblicas Brasileiras, atravs da BDTD, pelos mestrandos dos referidos programas. Nos procedimentos metodolgicos realizados, procurou-se inicialmente analisar o amplo espectro da populao do corpus da pesquisa. Em razo da impossibilidade de trabalhar com os Programas de Ps-Graduao como um todo, optou-se por fazer um recorte, elegendo os cursos de Ps-Graduao em Cincia da Informao, vez que estes representam o principal segmento social de interesse da pesquisa. Foi utilizado o mtodo de estudo de usurios, onde se optou por adotar o grupo, estudos orientados aos usurios, que identifica as necessidades e comportamento de acesso e uso da informao. Para coletar os dados, elaborou-se um questionrio semi-estruturado com 25 questes, que versavam sobre o uso, dificuldades de acesso e recuperao da informao, bem como a satisfao na utilizao dessa fonte informacional. Dentre os vrios resultados obtidos, podemos destacar o fato de que a maioria dos mestrandos (71,8%) s teve contato com a BDTD somente no momento em que se encontrava cursando o mestrado e, somente 24,3%, tiveram contato durante a graduao. Estes resultados representam um problema, que pode afetar o bom desempenho do projeto BDTD, o qual consiste em disseminar e divulgar a produo cientfica dos Programas de Ps-Graduao das Universidades Pblicas Brasileiras para a sua comunidade. Foi observado tambm, que os mestrandos oriundos do curso de Biblioteconomia tende a ter contato com a BDTD bem mais cedo do que mestrandos de outros cursos de graduao. A fim de minimizar o problema detectado, prope-se uma divulgao mais eficaz na graduao atravs de dois procedimentos: Primeiro, o docente deve fazer uma divulgao mais eficaz da BDTD junto aos discentes de todos os cursos de graduao; segundo: dever ser feita a divulgao na mdia eletrnica, atravs da insero de cones da BDTD, nos portais dos Departamentos dos Cursos de Graduao das Universidades Pblicas Brasileiras. Acredita-se que com estes procedimentos seja possvel aperfeioar o uso dessa fonte de informao cientfica.
