Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2015-12-02T22:22:37Z No. of bitstreams: 1 RailsonCarlosSouzaDaLuz_DISSERT.pdf: 1903685 bytes, checksum: 25e6da7dbbb38a3b765693998acaeaac (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2015-12-09T19:40:45Z (GMT) No. of bitstreams: 1 RailsonCarlosSouzaDaLuz_DISSERT.pdf: 1903685 bytes, checksum: 25e6da7dbbb38a3b765693998acaeaac (MD5) / Made available in DSpace on 2015-12-09T19:40:45Z (GMT). No. of bitstreams: 1 RailsonCarlosSouzaDaLuz_DISSERT.pdf: 1903685 bytes, checksum: 25e6da7dbbb38a3b765693998acaeaac (MD5) Previous issue date: 2014-08-18 / Este trabalho objetiva avaliar a influencia da goma xantana e carboximetilcelulose (CMC) no processo de filtra??o dos fluidos de perfura??o base ?gua, considerando as mudan?as conformacionais sofridas pelos polieletr?litos com a adi??o do sal (NaCl) em diferente concentra??es (0,17; 0,34 e 0,51). Foi tamb?m avaliado o comportamento do fluido com a adi??o do carbonato de c?lcio (CaCO3). Procurando um melhor entendimento entre os pol?meros utilizado e o CaCO3, as analises de adsor??o polim?rica foram realizadas por meio de um m?todo de deple??o. A maior porcentagem de adsor??o da Goma Xantana neste material pode justificar a forma??o de um reboco fino e imperme?vel para fluidos de perfura??o que contenham esse pol?mero. / This study aimed mainly to evaluate the influence of xanthan gum (XG) and carboxymethylcellulose (CMC) in the filtration process of water-based drilling fluids, considering the conformational changes suffered by the polyelectrolyte with the addition of sodium chloride (NaCl) in different concentrations (0.17, 0.34 and 0.51 mol.L-1). It was also evaluated the behavior of the fluid by the addition of calcium carbonate (CaCO3) in pure water and in brine. Seeking a better understanding of the interaction between the polymers used and CaCO3, polymer adsorption analyzes were performed using a depletion method, which yielded a higher percentage of adsorption of Xanthan Gum in this material (29%), which can justify the formation of a thin and waterproof filter cake for drilling fluids containing this polymer. However, the best values of apparent viscosity (20 and 24 mPa.s) and volume of filtrate (8.0 and 8.1 mL) were obtained for the systems consisting of xanthan gum, CMC and CaCO3, in NaCl aqueous solutions concentrations of 0.34 and 0.51 mol.L-1, respectively. The values can be related to the presence of CMC that increases the apparent viscosity and reduces the volume of filtrate. In addition, the CaCO3 added acts as a bridging agent, promoting the formation of a less permeable filter cake

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2015-12-04T19:15:27Z No. of bitstreams: 1 MariaJaquelineMonteDeAndrade_DISSERT.pdf: 2265638 bytes, checksum: 9f30624d051acb090d637ee2530e2a96 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2015-12-09T23:02:07Z (GMT) No. of bitstreams: 1 MariaJaquelineMonteDeAndrade_DISSERT.pdf: 2265638 bytes, checksum: 9f30624d051acb090d637ee2530e2a96 (MD5) / Made available in DSpace on 2015-12-09T23:02:07Z (GMT). No. of bitstreams: 1 MariaJaquelineMonteDeAndrade_DISSERT.pdf: 2265638 bytes, checksum: 9f30624d051acb090d637ee2530e2a96 (MD5) Previous issue date: 2014-05-13 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / O g?nero Hemidactylus Oken, 1817 tem distribui??o cosmopolita e, no Brasil, ocorrem tr?s esp?cies, sendo duas nativas, H. brasilianus e H. agrius, e uma ex?tica, H. mabouia. Tomando como base os estudos sobre ecologia de lagartos efetuados na Esta??o Ecol?gica do Serid?, de 2001 a 2011, este trabalho buscou reavaliar a ocorr?ncia das esp?cies do g?nero Hemidactylus nesta ESEC, analisar aspectos ecol?gicos e biol?gicos da popula??o de H. agrius; e investigar a distribui??o atual e potencial das esp?cies nativas do g?nero na regi?o nordeste, analisando a adequabilidade da ESEC para este t?xon. Para os dois primeiros objetivos, uma ?rea de amostragem constitu?da por cinco transectos de 200 m x 20 m, foi inspecionada em turnos alternados por tr?s dias consecutivos, de agosto de 2012 a agosto de 2013. Para a ?ltima perspectiva, foram consultados pontos de ocorr?ncia de H. agrius e H. brasilianus na literatura e no banco de dados da Cole??o Herpetol?gica da Universidade Federal do Rio Grande do Norte para constru??o de mapas preditivos, atrav?s do algoritmo de M?xima Entropia (MaxEnt). Na ESEC Serid? foram coletados 62 H. agrius (25 f?meas, 18 machos e 19 juvenis) e dois rec?m-nascidos foram obtidos a partir de um ninho comunal incubado em laborat?rio, nenhum registro foi feito para as demais esp?cies do g?nero. Hemidactylus agrius demostrou ser uma esp?cie noturna com especialidade a h?bitats com Afloramentos Rochosos, no entanto, generalista quanto ao uso de microh?bitats. Nesta popula??o as f?meas possuem comprimento corporal m?dio maior que o dos machos e apresentaram maiores frequ?ncias de autotomia caudal. Em rela??o ? dieta, H. agrius ? uma esp?cie moderadamente generalista, que consome artr?podes, principalmente Aranae, Orthoptera e Isoptera; e vertebrados, al?m de ter constatado um caso de canibalismo. Quanto ? sazonalidade foram registradas diferen?as apenas para o n?mero dos itens alimentares consumidos. A dieta foi similar entre os sexos, por?m diferen?as ontogen?ticas foram registradas para o volume total e comprimento m?ximo dos itens alimentares. Rela??es significativas foram constatadas entre o tamanho do corpo e da cabe?a dos esp?cimes com o comprimento m?ximo das presas consumidas. Casos de polidactilia e de bifurca??o caudal foram registrados na popula??o com frequ?ncias de 1,6 % e 3,1%, respectivamente. Em rela??o ?s localidades de ocorr?ncia das esp?cies nativas, foram constatados 27 pontos, sendo 14 para H. agrius e 13 para H. brasilianus; a primeira apresentou distribui??o restrita, enquanto que a segunda demonstrou ampla distribui??o. Em ambos os modelos gerados a ?rea da ESEC Serid? apresentou de m?dia a alta adequabilidade. Os resultados deste trabalho confirma a aus?ncia de H. brasilianus e H. mabouia nesta ESEC e confere a H. agrius condi??o de esp?cie canibal oportunista. Al?m disso, confirma os padr?es de distribui??o exibidos pelas esp?cies nativas de Hemidactylus e aponta a ESEC Serid? como ?rea de prov?vel ocorr?ncia para as esp?cies do g?nero, constatando, assim, que o estabelecimento de H. brasilianus e de H. mabouia, possivelmente, ? limitado por fatores bi?ticos, ainda pouco esclarecidos. / The genus Hemidactylus Oken, 1817 has cosmopolite distribution, with three species occurring in Brazil, two of them native, H. brasilianus and H. agrius, and one exotic, H. mabouia. Considering the studies about ecology of lizards conducted in the Ecological Station of the Serid?, from 2001 to 2011, this study aimed (1) to re-evaluate the occurrence of the species of Hemidactylus in this ESEC; (2) to analyze ecological and biological aspects of the H. agrius population; and (3) to investigate the current and potential distribution of the native species of the genus in northeastern Brazil, analyzing the suitability of ESEC to this taxon. For the first two objectives, a sampling area consisting of five transects of 200 x 20 m, was inspected in alternating daily shifts for three consecutive days, from August 2012 to August 2013. For the latter objective, occurrence points of H. agrius and H. brasilianus from literature and from the database of Herpetological Collections of the UFRN and the UNICAMP were consulted to build predictive maps via the Maximum Entropy algorithm (MaxEnt). In ESEC Serid?, 62 H. agrius individuals were collected (25 females, 18 males and 19 juveniles), and two neonates were obtained from a communal nest incubated in the laboratory. No record was made for the other two species of the genus. Hemidactylus agrius demonstrated to be a nocturnal species specialized in habitats with rocky outcrops; but this species is generalist regarding microhabitat use. In the population studied, females had an average body length greater than males, and showed higher frequencies of caudal autotomy. Regarding diet, H. agrius is a moderately generalist species that consumes arthropods, especially insect larvae, Isoptera and Araneae; and vertebrates, with a case of cannibalism registered in the population. With respect to seasonal differences, only the number of food items ingested differed between seasons. The diet was similar between sexes, but ontogenetic differences were recorded for the total volume and maximum length of the food items. Significant relationships were found between lizard body/head size measurements and the maximum length of prey consumed. Cases of polydactyly and tail bifurcation were recorded in the population, with frequencies of 1.6% and 3.1%, respectively. In relation xv to the occurrence points of the native species, 27 were identified, 14 for H. agrius and 13 for H. brasilianus. The first species presented restricted distribution, while the second showed a wide distribution. In both models generated, the ESEC Serid? area showed medium to high suitability. The results of this study confirm the absence of H. brasilianus and H. mabouia this ESEC, and reveal H. agrius as a dietary opportunist and cannibal species. Further, the results confirm the distribution patterns shown by native species of Hemidactylus, and point ESEC Serid? as an area of probable occurrence for the species of the genus, the establishing of H. brasilianus and H. mabouia are probably limited by biotic factors, a fact yet little understood

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-01-04T19:51:13Z No. of bitstreams: 1 WillameSantosDeSales_DISSERT.pdf: 951686 bytes, checksum: 4a35e82a47df64cc82c0f39b009e8475 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-01-11T21:58:38Z (GMT) No. of bitstreams: 1 WillameSantosDeSales_DISSERT.pdf: 951686 bytes, checksum: 4a35e82a47df64cc82c0f39b009e8475 (MD5) / Made available in DSpace on 2016-01-11T21:58:38Z (GMT). No. of bitstreams: 1 WillameSantosDeSales_DISSERT.pdf: 951686 bytes, checksum: 4a35e82a47df64cc82c0f39b009e8475 (MD5) Previous issue date: 2014-07-28 / A presente pesquisa tem por objetivo investigar o processo de constru??o estil?stica na prosa romanesca do escritor norte-rio-grandense Jos? Bezerra Gomes, tomando, como corpus, o romance A porta e o vento. Os fundamentos te?ricos sobre os quais se assenta esta empresa est?o relacionados ?s ideias difundidas pelo chamado C?rculo de Bakhtin, especialmente, as no??es de linguagem dial?gica, palavra liter?ria, enunciado concreto, vozes sociais e estilo/estil?stica sociol?gica. Quanto ? orienta??o metodol?gica, o trabalho caracteriza-se por adotar o paradigma interpretativista de base s?cio-hist?rica, situando-se, ainda, no grande campo da Lingu?stica Aplicada, ?rea de investiga??o indisciplinar e fronteiri?a cujo foco primordial ? a linguagem concretamente situada. A an?lise dos discursos presentes na obra A porta e o vento possibilitou-me escutar diversas vozes sociais ali encarnadas, enxergar diversas formas de di?logo, in?meras vis?es de mundo em embate constante que, em raz?o do gerenciamento e do acabamento dados pelo autor, acabam por conferir-lhe um tom, um estilo peculiar frente aos demais discursos e estilos circulantes em seu meio. Os embates ideol?gicos s?o evidentes: voz da tradi??o versus voz particular do personagem Santos, no que respeita ? institui??o do casamento; confronto entre imagens de sert?o antag?nicas ? um sert?o vivo (rico e diverso) em contraposi??o ? no??o estereotipada de sert?o (pobre e est?ril); e A porta e o vento como met?fora de uma arena de combate e ind?cio de uma poetiza??o da linguagem da prosa. A caracter?stica principal do estilo bezerriano, em A porta e o vento, est? relacionada aos modos de dialogiza??o das aludidas vozes presentes no romance. Nesse sentido, tem-se, com frequ?ncia, o uso de pol?micas veladas, r?plicas dial?gicas e di?logos velados, que s?o categorias j? discutidas na teoria bakhtiniana, mas tamb?m outros modos de dialogiza??o novos, alicer?ados na din?mica da linguagem viva e concreta / This research aims to investigate the process of stylistic construction in novelistic prose of Northeastern Brazilian writter Jos? Bezerra Gomes, taking as a corpus his novel called A porta e o vento. The theoretical foundations supporting this study are related to the ideas disseminated by a group of linguistic researchers known as Bakhtin Circle, especially the notions of dialogic language, literary word, concrete utterance, social voices, and sociological style/stylistic. Concerning to methodological guidance, this work is characterized by adopting the interpretive paradigm of socio-historical background, still situated in the great field of Applied Linguistics, an undisciplinary area of research and frontier whose primary focus is concrete and situated language. The analysis allowed me to hear several social voices embodied therein, realizing a variety of dialogs, numerous worldviews in constant struggle, that due to the management and the finish given by the author, eventually create a tone, a unique composition compared to other discourses and current styles in his midst. Ideological clashes are evident: the voice of tradition versus particular character Santos? voice regarding the institution of marriage; confrontation between antagonistic hinterland pictures - a living hinterland (rich and diverse) as opposed to the stereotypical notion of hinterland (poor and sterile); and the door and the wind as a metaphor of a fighting arena and a hint of poeticization of the language of prose. The main feature of Bezerra?s style in A porta e o vento is related to the aforesaid modes dialogization voices present in the novel. Therefore, one can found veiled polemic, dialogical replicas and veiled dialogues, which are categories already discussed in Bakhtin's theory, but also other new modes dialogization, grounded in the dynamics of living and concrete language

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-02-29T22:12:45Z No. of bitstreams: 1 DaisyCleciaVasconcelosDaSilva_TESE.pdf: 1850426 bytes, checksum: c025c58e0329efc48e0dd455d8a1c676 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-01T22:42:42Z (GMT) No. of bitstreams: 1 DaisyCleciaVasconcelosDaSilva_TESE.pdf: 1850426 bytes, checksum: c025c58e0329efc48e0dd455d8a1c676 (MD5) / Made available in DSpace on 2016-03-01T22:42:42Z (GMT). No. of bitstreams: 1 DaisyCleciaVasconcelosDaSilva_TESE.pdf: 1850426 bytes, checksum: c025c58e0329efc48e0dd455d8a1c676 (MD5) Previous issue date: 2012-05-11 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / A necessidade de ver os sujeitos da Educa??o de Jovens e Adultos ? EJA para al?m de seus fracassos escolares torna-se imprescind?vel para uma reconfigura??o desta modalidade de ensino. Portanto, o compromisso desta pesquisa ? adentrar no universo desses sujeitos, dar-lhes voz e, com isso, compreender a teia de rela??es que se d? entre esses sujeitos e a escola de uma maneira geral. Entende-se n?o ser poss?vel compreender os significados atribu?dos pelos sujeitos sem considerar, como elemento primordial, o contexto social no qual esses significados s?o constru?dos. Para o desenvolvimento deste estudo foi adotada como metodologia a pesquisa etnogr?fica. Os procedimentos utilizados para a constru??o dos dados foram observa??o participante, entrevistas semiestruturadas com grupo focal e entrevistas semiestruturadas individuais. Para a compreens?o dos dados constru?dos no campo, foi utilizada a t?cnica da an?lise de conte?do, que atende ?s expectativas de uma an?lise interpretativa. As observa??es ocorreram principalmente dentro das salas de aula de uma escola municipal, situada na cidade do Natal/RN. As entrevistas individuais foram realizadas com uma amostra de oito alunos, homens e mulheres, com faixa et?ria entre 25 e 60 anos. As entrevistas evidenciaram que para o jovem e para o adulto, a escola ? muito mais do que o lugar onde se aprendem conte?dos. Eles percebem este espa?o como propiciador de intera??o social, e como a possibilidade de galgar novos horizontes profissionais e, dessa forma, alcan?ar uma ascens?o social. Para os alunos mais velhos, em especial ?s mulheres, esta volta aos bancos escolares traz embutida no discurso da aprendizagem, o desejo de fazer novos amigos, de ter momentos de encontros, conversas e descontra??o, enfim, de esquecer os problemas do dia-a-dia. A observa??o do cotidiano escolar permite melhor entender a a??o destes sujeitos em rela??o ?s pr?ticas escolares. Por fim, afirma-se que a busca pela escola n?o se d? apenas para recuperar o tempo perdido na inf?ncia. Aprender acaba por ser secund?rio. N?o importa se ficar?o retidos ou ser?o promovidos para o n?vel seguinte, o importante ? estar na escola. / The necessity of the view of the Youth and Adults Education (EJA) subjects beyond of their academic failures becomes imperative for a reconfiguration of this teaching modality. Thus, the compromise of this study is to go into these subjects? universe, give them a voice and, therefore, understand, in general, the web of relationships between these subjects and the school. It is understood that it is not possible to figure out the means attributed by the subjects without consideration, as an essential element, the social context in which such means has been built. For the development of this study, the methodology adopted was the ethnographic research. The procedures used for the data construction were the participative observation, the semi-structured interviews with a focal group, and the individualized semi-structured interviews. For the understanding of the data constructed in the field, the content analysis technique was used, which reach the expectations of an interpretative analysis. The observation occurred mainly in the classrooms, on a public school, located in a City of Natal/RN. The interviews were taken with a sample of eight students, males and females, with 25 to 60 year-olds. Such interviews highlight that for the young adult students, the school is much more than a place to learn. They realize such space as enabler of social interaction, as well as the possibility of rising through new professional horizons and, therefore achieve a social mobility. For the older students, mainly among women, the return to the school benches brings into the learning discourse, the desire of making new friends, having moments of meeting, chatting and relaxation, finally, to forget the problems of the day by day. The school quotidian observation allows a better understanding of the action of the subjects in relationship with the school practices. Finally, it can be affirmed that seeking for the school has not only the intention to recover the time lost in the childhood. Learning remains as a secondary goal. It does not matter whether they will be retained or promoted to the next level at the end of the academic year, what really matters is to be in school.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-02-29T22:12:46Z No. of bitstreams: 1 DanieleEstevesPereira_TESE.pdf: 5303295 bytes, checksum: 269acc49632343abd950add2ac85cc0c (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-01T23:04:42Z (GMT) No. of bitstreams: 1 DanieleEstevesPereira_TESE.pdf: 5303295 bytes, checksum: 269acc49632343abd950add2ac85cc0c (MD5) / Made available in DSpace on 2016-03-01T23:04:42Z (GMT). No. of bitstreams: 1 DanieleEstevesPereira_TESE.pdf: 5303295 bytes, checksum: 269acc49632343abd950add2ac85cc0c (MD5) Previous issue date: 2014-08-29 / Lettres ? une Princesse d?Allemagne sur divers sujets de physique et de philosophie (Cartas a uma princesa de Alemanha sobre diversos temas de f?sica e filosofia) ? a obra tomada como objeto de estudo desta tese. Trata-se de um sucesso liter?rio escrito no s?culo XVIII pelo matem?tico e f?sico su??o Leonhard Paul Euler (1707-1783) com o intuito de atender ? uma solicita??o do Rei da Pr?ssia, Frederico II, o grande (1712-1786) para que aceitasse tutorear a educa??o intelectual de sua sobrinha, a jovem princesa Anhalt-Dessau (1745-1808).O m?todo de ensino-aprendizagem por meio de cartas eleito para a educa??o da monarca alem? resultou em uma colet?nea de 234 correspond?ncias nas quais Euler versa sobre teoria musical, Filosofia, Mec?nica, ?ptica, Astronomia, Teologia e ?tica entre outros. A pesquisa busca assinalar conte?dos matem?ticos presentes na obra refer?ncia deste trabalho fundamentada na explora??o e adapta??o de obras hist?ricas originais como articuladora do desenvolvimento de atividades para o ensino de matem?tica na Educa??o B?sica e em conformidade com os Par?metros Curriculares Nacionais de Matem?tica (PCN). Tem como objetivo geral apontar os limites e potencialidades did?ticas de Lettres ? une Princesse d?Allemagne sur divers sujets de physique et de philosophie como fonte de estudos e apoio para professores da Educa??o B?sica na elabora??o de atividades para o ensino de matem?tica. As discuss?es levantadas sinalizam para possibilidades concretas de entrela?amento entre os conte?dos matem?ticos extra?dos do bojo da obra com metodologias de ensino atuais a partir do redimensionamento do uso de cartas pedag?gicas segundo a perspectiva freireana da correspond?ncia e, principalmente da utiliza??o de novas vias de comunica??o do s?culo XXI, ambas visando o di?logo e a aproxima??o entre quem escreve e quem l?. / Lettres ?une Princesse d'Allemagne sur divers sujets de physique et de philosophie (Letters to a Princess of Germany on various topics of physics and philosophy) is the work taken as an object of study of this thesis. It is a literary success written in the eighteenth century by the Swiss mathematician and physicist Leonhard Paul Euler (1707-1783) in order to meet a request from the Prussian king, Frederick II, the Great (1712-1786) to accept to guide the intellectual education of his niece, the young princess Anhalt-Dessau (1745-1808). The method of teaching and learning through letters elected to the education of the German monarch resulted in a collection of 234 matches in which Euler theory is about music, Philosophy, Mechanics, Optics, Astronomy, Theology and Ethics among others. The research seeks to point out mathematical content contained in this reference work based on the exploitation and adaptation of original historical works as an articulator of development activities for teaching mathematics in basic education and in accordance with the National Curriculum Parameters of Mathematics (NCP) work. The general objective point out the limits and didactic potential of Lettres ? une Princesse d'Allemagne sur divers sujets de physique et de philosophie as a source of support for teachers of basic education in developing activities for teaching mathematics. The discussions raised point to concrete possibilities of entanglement between the extracted mathematical content of the bulge of the work with current teaching methodologies from resizing the use of letters according to Freire's pedagogical perspective of the correspondence, and especially the use of new communication channels in the century XXI, both aimed at dialogue and approximation between those who write and those who read.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-03-09T23:41:38Z No. of bitstreams: 1 AlineDoValeFigueiredo_DISSERT.pdf: 1457394 bytes, checksum: b5e64aaca8500f1c320efb8e2f334c9c (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-12T00:18:48Z (GMT) No. of bitstreams: 1 AlineDoValeFigueiredo_DISSERT.pdf: 1457394 bytes, checksum: b5e64aaca8500f1c320efb8e2f334c9c (MD5) / Made available in DSpace on 2016-03-12T00:18:48Z (GMT). No. of bitstreams: 1 AlineDoValeFigueiredo_DISSERT.pdf: 1457394 bytes, checksum: b5e64aaca8500f1c320efb8e2f334c9c (MD5) Previous issue date: 2015-05-08 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / Reservat?rios s?o ecossistemas artificiais, intermedi?rios entre rios e lagos, apresentando caracter?sticas morfom?tricas e hidrol?gicas distintas que podem render muitos benef?cios importantes para a sociedade. Entretanto, a utiliza??o dessa ?gua para abastecimento humano, dessedenta??o de animais, lazer, produ??o agr?cola irrigada e desenvolvimento da piscicultura, influenciam diretamente no aumento do aporte de nutrientes para os ambientes aqu?ticos e, consequentemente, contribuem para a acelera??o da eutrofiza??o. Al?m disso, modelos de mudan?as clim?ticas globais est?o prevendo a maior ocorr?ncia de eventos extremos como chuvas intensas e seca severa, que criar? estresses hidrol?gicos em lagos. No semi?rido nordestino j? se percebe a ocorr?ncia desses eventos, a seca dos anos de 2012, 2013 e 2014 foi a pior seca dos ?ltimos 60 anos, segundo a Ag?ncia Nacional de ?guas (ANA). Sendo assim, o presente trabalho teve como objetivo avaliar a qualidade da ?gua de mananciais do semi?rido tropical, identificando padr?es temporais em per?odos com eventos hidrol?gicos extremos (chuva intensa e seca prolongada). Os resultados do estudo mostraram que os reservat?rios Gargalheiras e Cruzeta apresentaram mudan?as significativas nas vari?veis limnol?gicas entre os per?odos de chuva e de seca severa, com melhora no aspecto visual e na maioria das vari?veis da qualidade da ?gua no per?odo chuvoso e maiores concentra??es de nutrientes e elevados valores de condutividade el?trica no per?odo de seca severa, indicando decaimento da sua qualidade. Entretanto, constataram-se comportamentos distintos entre os reservat?rios no per?odo de seca severa. Enquanto Gargalheiras apresentou um comportamento t?pico de reservat?rios da regi?o, com elevadas concentra??es de biomassa algal, indicando o agravamento da eutrofiza??o, cruzeta demonstrou um colapso na biomassa total fitoplanctonica evidenciado pela diminui??o das concentra??es de chla. Este fato se deu principalmente pela baixa profundidade e proximidade com o sedimento ter facilitado a ressuspens?o de s?lidos inorg?nicos e, consequentemente, ocasionar a caracter?stica t?rbida e limita??o por luz na coluna d??gua. Al?m disso, os comportamentos distintos entre os reservat?rios estudados indicam que as respostas destes ambientes frente ? problem?tica dos eventos extremos devem levar em considera??o fatores como o clima da regi?o, tamanho e profundidade do reservat?rio, al?m das caracter?sticas das suas bacias. / Reservoirs are artificial ecosystems, intermediate between rivers and lakes, with diferent morphological and hydrological characteristics that can provide many important benefits to society. However, the use of this water for human consumption, watering livestock, leisure, irrigated agricultural production and pisciculture development, directly influence the increase loading of nutrients to aquatic environments and contribute to acceleration of eutrophication. Furthermore, global climate models are predicting a higher occurrence of extreme events such as floods and severe droughts, which will create hydrological stresses in lakes. In the semiarid northeast we can see the occurrence of these events, the drought of the years 2012, 2013 and 2014 was the worst drought in 60 years, according to the National Water Agency (ANA). Thus, this study aimed to evaluate the quality of the semiarid tropical water sources, identifying temporal patterns in periods with extreme hydrological events (floods and severe droughts). The study results showed that Gargalheiras and Cruzeta reservoirs presented significative changes in the limnological variables between rain and severe drought periods, with better appearance and in the most of the water quality variables in the rainy season and higher nutrientes concentrations and high electrical conductivity values in severe season, indicating decay of its quality. However, we found diferent behaviors between the reservoirs in severe drought. While Gargalheiras showed a typical behavior of the region, with high concentrations of algal biomass, indicating the worsening eutrophication, Cruzeta demonstrated a colapse in the total phytoplankton biomass, evidenced by the decrease in chla concentrations. This fact occurred because the low depth and proximity with the sediment facilited the inorganic solids resuspension and, consequently, resulted in turbid water column and light by limitation. In addition, the different behaviors between the reservoirs indicate that the responses of these environments problems such as extreme events must take into account factors such the region climate, size, depth of the reservoir and the basin characteristics.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-05-10T21:45:30Z No. of bitstreams: 1 JoelsonDeSousaMorais_DISSERT.pdf: 1321459 bytes, checksum: 6e5a9a6c3087a9da0590fff26bb109c9 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-05-13T23:33:21Z (GMT) No. of bitstreams: 1 JoelsonDeSousaMorais_DISSERT.pdf: 1321459 bytes, checksum: 6e5a9a6c3087a9da0590fff26bb109c9 (MD5) / Made available in DSpace on 2016-05-13T23:33:21Z (GMT). No. of bitstreams: 1 JoelsonDeSousaMorais_DISSERT.pdf: 1321459 bytes, checksum: 6e5a9a6c3087a9da0590fff26bb109c9 (MD5) Previous issue date: 2015-04-14 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Esta disserta??o nasceu da minha pr?pria experi?ncia como professor iniciante na escolariza??o de crian?as pequenas e no entrela?amento com v?rios contextos de experi?ncias que se relacionavam com minhas observa??es e compartilhamento de saberes e fazeres com outras professoras na forma??o inicial no curso de Pedagogia. Assim me veio uma possibilidade de pesquisar aquilo que propus como objetivo nesta investiga??o: Compreender como as professoras iniciantes mobilizam os saberes e saberesfazeres na pr?tica pedag?gica cotidiana. De abordagem qualitativa, adotei como perspectiva te?rico-pol?tica e metodol?gica os estudos do cotidiano nesta investiga??o, adotando como instrumentos as conversas e observa??es registradas em ?udio, fotografias e di?rio de pesquisa acerca da pr?tica pedag?gica das interlocutoras desta pesquisa, que foram tr?s professoras iniciantes que atuam nas s?ries iniciais do Ensino Fundamental numa escola p?blica municipal de Caxias - MA. Escolhi a epistemologia da complexidade n?o cartesiana na tentativa de desinvisibilizar as pr?ticas das professoras pesquisadas e, assim, compreender as narrativas por elas enunciadas durante nossas conversas. Os saberes e saberesfazeres mobilizados pelas professoras iniciantes s?o constru?dos em in?meros espa?ostempos do cotidiano, que s?o os m?ltiplos contextos formativos, e se materializam em sua pr?tica pedag?gica no desenvolvimento do processo ensino e aprendizagem. Em meio ?s pr?ticas hegem?nicas impregnadas pelo curr?culo oficial, as praticantespensantes do cotidiano produzem outros sentidos, metamorfoseiam-se, tecem suas identidades profissionais e apresentam algumas lacunas na sua pr?tica, numa perspectiva complexa, configurando-se, assim como pr?ticas emancipat?rias e democr?ticas, que legitimam os saberes mobilizados, fundamentais para a aprendizagem da doc?ncia e a consolida??o do processo de profissionaliza??o. / This thesis was born from my own experience as a junior lecturer at the schooling of young children and intertwining experiences with various contexts that related with my observations and sharing of knowledge and practices with other teachers and initial training in pedagogy courses. Thus came a chance to research what I have proposed the goal in this research: Understanding how beginning teachers mobilize knowledge and knowledge-doings in everyday teaching practice. Qualitative approach, adopted as a theoretical-political and methodological perspective the studies of everyday life in this investigation, excelling as instruments conversations and audio recorded observations, photographs and journal research about the pedagogical practice of the interlocutors of research that were three teachers beginners who work in the early grades of elementary school in a public school in Caxias, MA, chose not Cartesian epistemology of complexity in an attempt to uncover practices of the surveyed teachers and so understand the narrative set out by them during our conversations. The knowledge and knowledge-doings mobilized by beginning teachers are built in many everyday spacetimes which are the multiple training contexts, and materialize in their practice in the development of teaching and learning process. Amid the hegemonic practices impregnated by the official curriculum, everyday practitioners-thinking produce other senses, metamorphose, weave their professional identities and have some gaps in your practice in a complex perspective, configuring, as well as emancipatory and democratic practices that legitimize the mobilized knowledge, fundamental to the learning of teaching and the consolidation of the professionalization process.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-05-10T23:15:20Z No. of bitstreams: 1 AlissonGadelhaDeMedeiros_DISSERT.pdf: 4560280 bytes, checksum: 1eaedc80ead007ccca75b3000c566456 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-05-17T23:52:56Z (GMT) No. of bitstreams: 1 AlissonGadelhaDeMedeiros_DISSERT.pdf: 4560280 bytes, checksum: 1eaedc80ead007ccca75b3000c566456 (MD5) / Made available in DSpace on 2016-05-17T23:52:56Z (GMT). No. of bitstreams: 1 AlissonGadelhaDeMedeiros_DISSERT.pdf: 4560280 bytes, checksum: 1eaedc80ead007ccca75b3000c566456 (MD5) Previous issue date: 2015-08-28 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A durabilidade das estruturas de concreto armado tem motivado muitas pesquisas, considerando os altos custos dos reparos em muitas situa??es, como ? o caso das pontes, bem como os preju?zos causados pela necessidade de interdi??o quanto aos servi?os de recupera??o. Neste sentido, este trabalho tem como objetivo avaliar as condi??es de durabilidade da Ponte do Rio do Carmo com 90,90 metros de extens?o. Esta foi constru?da em 1976 e est? localizada no Km 36 da rodovia brasileira BR-110, entre os munic?pios de Areia Branca/RN e Mossor?/RN, em regi?o de elevada agressividade ambiental. Para realiza??o deste estudo, foram identificadas as manifesta??es patol?gicas presentes, utilizando metodologias de inspe??es: Norma DNIT 010/2004 - PRO e a GDE/UnB. Com isto, a partir delas, p?de-se verificar que, as maiores incid?ncias dos danos sofridos foram na superestrutura, na mesoestrutura e em outros elementos estruturais, como as vigas de fachada. Ademais, de acordo com este levantamento, foi poss?vel quantificar a deteriora??o da estrutura; de forma que se obteve nota t?cnica igual a 3 segundo a norma DNIT, caracterizando-a como uma obra ?potencialmente problem?tica?, e grau de deteriora??o global da estrutura (Gd) igual 65,05, classificando-a em n?vel ?Alto?. Em comparativo entre ambas metodologias aplicadas, a mais conservadora foi a GDE/UnB, devido a riqueza de detalhes em sua an?lise. Quanto, a realiza??o dos ensaios n?o destrutivos, mostrou-se boa homogeneidade do concreto perante o ensaio de esclerometria. Para as medidas de ultrassom, foi identificada a qualidade do concreto como ?regular? e possibilitou a estimativa do m?dulo de elasticidade e resist?ncia em 17,60 GPa e 13,51 MPa, respectivamente. J? o ensaio de profundidade de carbonata??o, foram aferidas medidas em valores de 0,00 a 19,00 mm e, no o ensaio de presen?a de cloretos, verificaram-se maiores medidas, sendo a maior delas igual 22,80 mm. Por?m, ambas n?o atingiram a profundidade do a?o, 30 mm. No ensaio de potencial de corros?o, a maior parte da medi??o foi numa faixa de -150 a -250 mV, que indica probabilidades de 10 a 90% de corros?o. Todos esses resultados podem concluir que, a Ponte do Rio do Carmo, necessita de reparos nos elementos estudados nesta pesquisa e aliados outras inspe??es mais detalhadas, poder? se planejar a solu??o mais adequada quanto aos aspectos de seguran?a e economia. / The durability of reinforced concrete structures has motivated many researches, considering the high cost of repairs in many situations, such as bridges, as well as the damage caused by the need to ban regarding recovery services. Thus, this study aims to assess the conditions of durability of the bridge over the Carmo River with 90.90 meters long. This was built in 1976 and is located at km 36 of the BR-110 highway, between the municipalities of Areia Branca/RN and Mossor?/RN, in environmentally high aggression region. For this study, non-destructive tests were done on that proved to be good homogeneity of the concrete before the rebound hammer testing. For ultrasound measures the quality of the concrete was identified as "regular" and enabled the estimation of the dynamic modulus of elasticity and strength of 13.51 MPa and 17.60 GPa, respectively. The carbonation depth assay gave values in steps of 0.00 to 19.00 mm and the testing of the presence of chlorides, there were larger dimensions, most of them being equal to 22.80 mm. However, both did not reach the depth of the steel, 30 mm. The corrosion potential of the test, most of the measurement concentrated in a range of -150 to -250 mV which indicates probabilities of 10 to 90% corrosion. Pathological present manifestations were identified using inspection methods: a standard DNIT 010/2004 and GDE / UnB. With this, from them, it was observed that the highest incidence of injuries suffered were in the superstructure, the mesostructure and other auxiliary elements such as the facade beams. Furthermore, according to this lifting, it was possible to quantify the deterioration of the structure; so that was obtained technical score equal to 3 in accordance with standard DNIT 010/2004, characterizing it as a work "potentially problematic", and overall degree of deterioration of the structure (Gd) equal to 64.03 classifying the level "High". In comparison between both methodologies, the GDE/UnB resulted in greater accuracy, due to richness of detail in your analysis. All these results indicate that the bridge study, needs repairs in the elements studied in this research and allies for more specific inspections, will be able to plan the most appropriate solution in relation to safety aspects and economics.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-07-25T20:32:38Z No. of bitstreams: 1 MirelaGranjaVidalMonteiro_DISSERT.pdf: 1945570 bytes, checksum: d871feac3c6a50d5f4f7d8ae060fb59e (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-02T20:07:25Z (GMT) No. of bitstreams: 1 MirelaGranjaVidalMonteiro_DISSERT.pdf: 1945570 bytes, checksum: d871feac3c6a50d5f4f7d8ae060fb59e (MD5) / Made available in DSpace on 2016-08-02T20:07:25Z (GMT). No. of bitstreams: 1 MirelaGranjaVidalMonteiro_DISSERT.pdf: 1945570 bytes, checksum: d871feac3c6a50d5f4f7d8ae060fb59e (MD5) Previous issue date: 2015-08-31 / Esta investiga??o teve como objetivo conhecer e analisar as pr?ticas pedag?gicas que v?m sendo desenvolvidas no processo de ensino-aprendizagem de alunas com Defici?ncia Intelectual (DI), matriculadas em classe comum do Ensino Fundamental I. O estudo foi realizado em uma escola municipal de Natal/RN, envolvendo duas educandas com DI, uma professora polivalente, uma professora auxiliar, uma professora de artes e uma coordenadora pedag?gica. Quanto ? escolha metodol?gica, optamos por desenvolver uma pesquisa do tipo qualitativa, empreendendo um Estudo de Caso. Como instrumentos para a constru??o dos dados, utilizamos: entrevista semiestruturada, observa??o participante, di?rio de campo e an?lise documental. A an?lise dos dados revela que a institui??o na qual empreendemos a pesquisa estava, gradativamente, implementando mudan?as com vistas a desenvolver uma pr?tica inclusiva, coerente com seus pressupostos. Em rela??o ?s pr?ticas desenvolvidas no processo de ensino-aprendizagem das alunas com defici?ncia intelectual, foi poss?vel perceber a realiza??o de algumas adapta??es no que se refere aos objetivos, ?s atividades e a alguns conte?dos, envolvendo a utiliza??o de recursos e estrat?gias variadas. Em rela??o ?s atividades pedag?gicas, constatamos que estas possu?am diferentes n?veis de complexidade, abrangendo tanto objetivos elementares como objetivos mais complexos. A partir das observa??es, percebemos que as media??es da professora auxiliar durante as atividades variaram enquanto ferramenta desafiadora nos processos intelectuais. Constatamos, tamb?m, uma din?mica de sala de aula na qual as alunas com defici?ncia ficavam sob a orienta??o da professora auxiliar, e os demais alunos com a professora polivalente, que apresentava uma metodologia de ensino bastante tradicional. Criou-se, assim, uma situa??o de isolamento, visto que n?o havia a proposi??o de pr?ticas a serem desenvolvidas com todos os alunos, sendo a intera??o entre os colegas da turma, em geral, bastante restrita. Embora tenham sido evidenciadas evolu??es nas aprendizagens sociais e acad?micas das alunas pesquisadas, as educadoras afirmaram que n?o se sentiam preparadas para o trabalho frete ? inclus?o. O estudo revela a necessidade dos docentes reverem algumas a??es empreendidas, com vistas a desenvolver pr?ticas pedag?gicas mais democr?ticas de ensino, estimulando as intera??es entre os alunos, mediante a proposta de atividades desafiadoras, que promovam a forma??o e conceitos. Al?m disso, aponta para necessidade do sistema de ensino investir e incentivar a qualifica??o dos docentes, no tocante ? educa??o numa perspectiva inclusiva, atrav?s de a??es que promovam uma forma??o cont?nua. ? necess?rio que seja desenvolvido no professor uma atitude reflexiva, resultando numa vis?o de que os processos investigativos devem ser inseridos na pr?tica inerente ? doc?ncia, de maneira a serem utilizados para aprimorar a sua viv?ncia pedag?gica. / This research aimed to know and analyze the pedagogical practices that have been developed in the teaching and learning of students with Intellectual Disability (DI), enrolled at common class of elementary school I. The study was conducted in a public school at Natal/RN, involving two students with DI, a multipurpose teacher, a teaching assistant, a teacher of arts and educational coordinator. As for methodological choice, we chose to develop a qualitative study, undertaking a case study. As tools for the construction of the data we use: semi-structured interviews, participant observation, field diary and document analysis. Data analysis reveals that the institution in which the research was undertaken gradually implementing changes in order to develop an inclusive practice, consistent with its assumptions. Regarding the practices developed in the teaching and learning of students with intellectual disabilities, it was possible to realize the fulfillment of certain adjustments in relation to the objectives, activities and some content, involving the use of resources and varied strategies. With regard to educational activities, we found that these had different levels of complexity, covering both basic goals as more complex objectives. From the observations, we realize that the Assistant Professor of mediations during varied activities as challenging tool in intellectual processes. We note, too, a dynamic classroom in which disabled students were under the guidance of Assistant Professor, and other students with all-round teacher who had a fairly traditional teaching methodology. It created thus an isolation situation, since there was no proposition practices to be developed with all students, and interaction among classmates, generally quite restricted. Although were highlighted developments in the social and academic learning of the surveyed students, the teachers said they did not feel prepared to work freight inclusion. The study reveals the need for teachers reviewing some actions undertaken, in order to develop more democratic pedagogical practices of education, stimulating the interactions between students, by proposing challenging activities that promote the formation and concepts. In addition, it points to the need of the education system invest and encourage the qualification of teachers with regard to education in an inclusive perspective, through actions that promote lifelong learning. It needs to be developed on the teacher a reflective attitude, resulting in a view that due diligence must be entered in practice inherent in teaching in order to use to enhance their educational experience.

Made available in DSpace on 2014-12-17T15:07:06Z (GMT). No. of bitstreams: 1 FernandaMF_DISSERT.pdf: 1297363 bytes, checksum: 9a7e7336bac41910321b6df4d2db1041 (MD5) Previous issue date: 2013-04-03 / O objetivo deste trabalho ? investigar a constru??o axiol?gica do riso na charge. Nesse g?nero discursivo abordaremos a constru??o do riso, partindo da hip?tese de que o riso constitutivo das rela??es dial?gicas na charge ? constru?do axiologicamente, ou seja, ? um riso que presentifica enunciativamente e ? por meio dele que chegamos ao axiol?gico, aos posicionamentos, ao ideol?gico. Para tanto, nos deteremos na investiga??o dos elementos verbo-visuais presentes na forma composicional como tamb?m do projeto de dizer constituidor/constituinte da forma arquitet?nica. Tomamos como fundamento te?rico-metodol?gico as formula??es sobre linguagem advindas do C?rculo de Bakhtin (2010, 2011, 1998) e outros tais como Faraco (2009), Brait (2009, 2006), Ponzio (2009) que comungam dessa concep??o de linguagem. Especificamente sobre o g?nero discursivo charge, nos reportamos a Ramos (2009, 2010, 2011) e Vergueiro (2009, 2010). Quanto ao riso, apoiamo-nos em autores como Possenti (2010), Minois (2003), Propp (1992), Bergson (2001), Skinner (2002), no entanto, tendo por principal refer?ncia a obra de Bakhtin sobre cosmovis?o carnavalesca e riso (1997, 2010). Este trabalho se insere na ?rea da Lingu?stica Aplicada de perspectiva s?cio-hist?rica e tem como tema linguagem, axiologia e riso