The aim of this study is to examine knowledge processes in online spaces. It focuses on threeparticular cases: the Bonfireside Chat podcast, the community around the computer game Europa Universalis 4, and the Supernatural fandom. By applying the frameworks of Wenger’s (1998) communities of practice and Hall’s (1980) modes of reading, it examines how these spaces and their communities engage with their respective media artifacts. It concludes thatthese processes display high levels of complexity and literacy, and that a deeper understanding of such processes is useful in developing future educational efforts, online as well as offline.

Este trabalho analisa as possíveis causas de quebras de eixos de motores para sistemas de arrefecimento (eletro ventiladores) devido à fadiga. Para isso, define o fenômeno de fadiga e modos de como evitá-lo. Introduz o conceito de vibrações lineares, apresenta os tipos de ensaios de vibração, mostra as alterações do comportamento mecânico do material de um eixo em função do processo de fabricação empregado em sua manufatura e de seu projeto. Define o que é um sistema de arrefecimento e, por último, em um estudo de caso, faz a análise completa do eixo de um determinado eletro ventilador comercial demonstrando situações onde ocorreram quebras por fadiga. / This work has as objetive to analyze fracture possible reasons of a cooling systems fan shaft. For this, it defines fatigue and how to avoid it. It introduces the concept of linear vibration, it presents the types of vibration tests, it shows changes in the mechanical behavior of the shaft material depending on the manufacturing process and design, it defines which is a system of cooling. Finally, in a case study, it analyzes the shaft fatigue fracture of a particular commercial electric fan.

Este estudo tem por objetivo central compreender como as séries cômicas nacionais, através da comicidade, levam os fãs a discutir assuntos “sérios”, que interessam ao debate social. Como objetivos específicos buscou-se investigar o que leva o sujeito a tornar-se fã de séries cômicas nacionais, identificar quais os temas que levam ao riso estes fãs, especialmente da série Tapas & Beijos, bem como, verificar como o Facebook pode surgir como um cenário de interação entre os fãs e deles com a emissora. Para tanto, adotou-se como referencial teórico central o modelo das Múltiplas Mediações, de Guillermo Orozco Gómes, o que significa assumir que a audiência é composta por sujeitos, considerando-a “em situação”, assim sendo, condicionada individual e coletivamente. Desta forma, a recepção seria um processo resultante da interação receptor/televisão/mediações, mediações que entram no jogo contínuo do ato de assistir televisão, ao mesmo tempo em que o extrapolam. Adotou-se ainda a terminologia fã para os televidentes que desenvolvem uma relação sentimental com Tapas & Beijos, assim como, buscou-se investigar a concepção de autores nacionais sobre gêneros e formatos na televisão brasileira, em programas seriados que tivessem uma narrativa cômica. Os procedimentos metodológicos utilizados para o desenvolvimento da análise foram observação de post relacionado a série Tapas & Beijos no Facebook e aplicação questionário (realizado através de formulário online) para verificar do que riem os fãs de séries cômicas nacionais. O estudo destaca a importância de supertemas na forma como os fãs se relacionam com a série a partir da amizade, o riso, as brigas, o coleguismo, a paixão, o sexo e a verossimilhança com o cotidiano, apontados como fatores pelos quais eles mais se identificam com este tipo de programa. A investigação mostra ainda que o Facebook atua como um cenário de televidencia, um lugar onde se produz sentido ao que se obtém da televisão, um cenário de troca e negociação, onde os fãs podem fazer referência ao que viram ou esperam ver na televisão com outros fãs de Tapas & Beijos e com a Rede Globo. / This research aims to understand how the national comedy series, through comicality, leads fans to discuss "serious" issues that concern social debate. The specific aims include investigate what causes of the individuals becaming fans of national comedy series, identify the themes that lead to laughter these fans, especially of the Tapas & Beijos, as well as see how Facebook can arise as a scenario of interaction between fans and with them to the station. So, we adopted as the central theoretical framework the Guillermo Orozco Gomes's model of Multiple Mediations, which means assuming that the audience is subjected, it was “in situation”, therefore, individually and collectively conditioned. Thus, the reception would be a process resulting from the reception/television interaction/mediation, mediation entering the continuous playing of the act of watching television at the same time that the extrapolate. Still adopted a fan terminology for viewers who develop a emotional relationship with Tapas & Beijos, as we sought to investigate the design of national authors on genres and formats on Brazilian television in programs that series had a comic narrative. The methodological procedures used to develop the analysis were observation of the posts related to Tapas & Beijos on Facebook and questionnaire (conducted via online form) to verify the laughing fans of national comedy series. The study highlights the importance of supertemas in how fans relate to the series from the friendship, the laughter, the fights, the camaraderie, passion, sex and verisimilitude with everyday life, mentioned as factors by which more fans identify with this kind of program. The research also shows that Facebook acts as a scenario of televidencia, a place which fans produces the sense one gets from television, a scenario of exchange and negotiation, where fans can make reference to what they saw or expect to see on television with other fans of Tapas & Beijos and with Rede Globo.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / In ancient Greece, some authors used the mythological universe to produce their plays, thus creating a new story, or another version of the same story. This practice is very similar to what happens in fanfiction, or fanfic, a story written by a fan, involving the scenarios, characters and plots previously developed in the original. Based on this textual genre, this work presents a proposal of a pedagogical intervention for students of the 9th grade of Elementary School in a State public school in Aracaju-SE. In general terms, the methodology involves workshops aimed at reading, critical understanding and elaboration of fanfictions. The proposal is supported by the methodological concepts proposed by Roxane Rojo, which deals with the promotion by the school of teaching proposals that involve the cultural and semiotic multiplicity of society. Among the theoretical contributions that underlie the discussions are the approaches of Bakhtin's circle about the dialogical analyzes of the discourse, of Michel Foucault and Roland Barthes, which deal with the concept of authorship. The contributions of Maurizio Gnerre, who discusses the relations between writing and power, by Donna Haraway, on the relations between organism and machine, and Humberto Maturana, about technology and human living, were also used. The contributions of Maria da Glória Bordini and Vera Teixeira Aguiar were used for the didactic sequence, main point to the application of the proposal, which discusses the Receptive Method of reading, which encourages students to produce texts effectively and expand these preferences with the presentation of new readings to students. Student participation in fanfic production workshops was instrumental in their perception of reading and text production, as well as stimulating work in a collaborative way. / Na Grécia antiga, alguns autores usavam o universo mitológico para produzir suas peças, criando, assim, uma nova história, ou ainda, outra versão da mesma história. Essa prática é muito parecida com o que acontece na fanfiction, ou fanfic, história escrita por um fã, envolvendo os cenários, personagens e tramas previamente desenvolvidos no original. Baseado nesse gênero textual, este trabalho apresenta uma proposta de intervenção pedagógica destinada a alunos do 9º ano do Ensino Fundamental de uma escola pública da rede estadual em Aracaju-SE. Em termos gerais, a metodologia envolve oficinas que visam à leitura, à compreensão crítica e à elaboração de fanfictions. A proposta está respaldada nos conceitos metodológicos propostos por Roxane Rojo, que trata do fomento, por parte da escola, de propostas de ensino que envolvam a multiplicidade cultural e semiótica da sociedade. Entre os aportes teóricos que fundamentam as discussões estão as abordagens do círculo de Bakhtin acerca das análises dialógicas do discurso, de Michel Foucault e Roland Barthes, que tratam do conceito de autoria. Foram também utilizadas as contribuições de Maurizio Gnerre, que discute as relações entre escrita e poder, de Donna Haraway, sobre as relações entre organismo e máquina, e de Humberto Maturana, entre tecnologia e viver humano. Para a sequência didática, central na aplicação da proposta, foram utilizados os aportes de Maria da Glória Bordini e Vera Teixeira Aguiar, que discorrem sobre o Método Recepcional de leitura, que incentiva os alunos à produção efetiva de textos e a ampliação dessas preferências com a apresentação de novas leituras aos alunos. A participação dos estudantes nas oficinas de produção de fanfics revelou-se instrumental na percepção destes acerca da leitura e produção de texto, além de estimular o trabalho de forma colaborativa. / Itabaiana, SE

Esta dissertaÃÃo analisa os serviÃos oferecidos aos torcedores, tanto nos estÃdios quanto no entorno de uma partida de futebol. Os estÃdios pesquisados sÃo os dois maiores da cidade de Fortaleza, PlÃcido Aderaldo Castelo, chamado CastelÃo, e Presidente Vargas, sob a Ãtica dos torcedores dos trÃs maiores clubes da cidade. Trata, inicialmente de apresentar a cronologia histÃrica desses estÃdios. O referencial teÃrico mostra as transformaÃÃes ocorridas no futebol, desde sua origem atà o momento da consolidaÃÃo do profissionalismo. Apresenta, ainda, a rede de relaÃÃes dos agentes envolvidos no futebol, que buscam por receitas adicionais neste mercado especÃfico. Destaca a importÃncia da qualidade dos serviÃos à disposiÃÃo do cliente e da preocupaÃÃo do marketing tradicional e esportivo como temas que fundamentam a pesquisa realizada. Na pesquisa, como instrumento de captaÃÃo de dados, utilizou-se entrevistas estruturadas e elaborou-se o mÃtodo da amostragem probabilÃstico. A partir da pesquisa realizada, apresenta a anÃlise dos resultados obtidos na avaliaÃÃo dos serviÃos oferecidos em torno dos estÃdios de futebol.

O presente estudo tem por objetivo observar as mudanças estéticas havidas no decorrer do século XIX, mediante a comparação da sociedade moralista oitocentista e alguns estereótipos do gênero feminino produzidos e impulsionados pelo cinema clássico hollywoodiano do início do século XX com intercessão da moda e da cosmética. Propõe um confronto entre a construção estética e o contexto social, sob a perspectiva da moda, da cosmética, e do cinema e a possível relação quanto à difusão da simplificação e posterior democratização dos trajes até o início da década de 1960. O cinema avaliado, nesse sentido, como primeiro veículo de alto poder de persuasão, coloca-se como um provedor de tendências das aparências e de fomento de comportamentos que poderiam ser adotados pela massa. A pesquisa parte de uma abordagem qualitativa, de caráter exploratório, por meio de referências bibliográficas e análise do vestuário e de maquiagem presente nas filmografias e nas revistas de fãs, no espaço de tempo selecionado. Ao identificar as alterações estéticas promovidas pelo incentivo midiático desde seus primórdios, disponibilizam-se respostas sobre a importância dos meios de comunicação nas construções dos visuais femininos modernos / This research aims to observe the aesthetics changes occurred throughout the 19th century, through the comparison of 19th century moralist society and some stereotypes of the female gender produced and driven by the classic Hollywood cinema of the early 20th century with the intercession of fashion and cosmetics. It proposes a confrontation of aesthetic construction and the social context, from the perspective of fashion, cosmetics, and the cinema and its possible relationship with regard to the dissemination of simplification and greater democratization of the costumes until early 1960. The cinema evaluated in this sense, as the first high persuasion power vehicle, as a provider of trends of appearances and promoting behaviors that could be adopted by the mass. The research departs from a qualitative approach on the subject, exploring, through the analysis of clothing and makeup related to the filmography and the fans magazines in the timeframe selected. Identifying the aesthetics changes promoted by the media since its inception, offering answers to the importance of the media in the construct of the modern female visuals

This project is an analytical history of the discourse of media panics that have affected comics-like forms in the mid- to late-1800s, comic books in the mid-1900s, and comics media in 1990s and the contemporary moment. The study of these media panics shapes a theory of nerd culture in general and comics culture specifically in order to better understand the delicate and foundational dialectic that sustains a consumer identity that is paradoxical in its indulgence in and animosity towards popular culture. With its historical formation in mind, this project explores the formation of geek chic as a consumer identity that, in many ways, troubles and even threatens the status quo of nerd culture.

L'amélioration de la performance des turbomachines fonctionnant loin de leur point d'adaptation passe par la maîtrise des phénomènes instationnaires qui se produisent dans ces différents organes. L'étude présentée ici se concentre sur les interactions entre une roue de ventilateur centrifuge et son diffuseur. Elle vise, par des mesures de pression sur les différentes parois du diffuseur, ainsi que par des sondages dans les canaux inter-aubages à analyser finement ces phénomènes instationnaires et notamment les décollements fluctuants apparaissant sur les aubes à sur débit, et à mesurer leur influence sur la performance du diffuseur. Dans un second temps, un dispositif de contrôle passif de ces décollements utilisant des générateurs de vortex est proposé. Plusieurs configurations sont testés et leurs résultats sont comparés / The performance improvement of turbomachinery operating at off-design conditions can be achieved by the understanding of unsteady phenomena which are occuring in its components. The present study is focussing on the interaction between a centrifugal impeller fan and its vaned diffuser. It aims at analysing precisely these unsteady phenomena (and especially the fluctuating separated region identified on the vanes wall) and their consequences on the diffuser performance by three holes probe and unsteady pressure measurements. In a second step, devices for a passive control of the separation are introduced. Several configurations are tested and their results are compared

This paper takes a look at the phenomenon slash fan fiction. Slash is a genre which often focuses on romantic and sexual relationships between same-sex characters, most of whom are men. It is not unusual that these characters are not homosexual in their original stories. The objective of this paper is to study why some women read and write slash fan fiction, with the focus on slash as a source of pleasure and as a source of identification. While the methodology employed is empirical, the theoretical framework consists of Henry Jenkins and Shoshanna Green as the main researchers on fandom and slash, and queer theory with Judith Butler as the main source. This is a rather small study, consisting of interviews with only four women. The findings suggest that the participants at times do identify with the different characters in slash stories, however they do more frequently take pleasure in just being a bystander and being able to experiment with the gender stereotypes regarding men.

Pour préciser l’architecture du système turbiditique du Congo (marge Ouest-Africaine, Atlantique Sud-Est), et les variations climatiques et paléocéanographiques de la zone au cours du dernier million d’années, on a étudié les variations de la productivité des diatomées sur deux carottes de référence, KZAI-02 et RZCS-26, prélevées respectivement à 248 et 800 Kms de l’embouchure du fleuve. Cette étude est intégrée au projet REPREZAÏ, REtrogradation/PRogradation dans l’Eventail du ZAÏre, Les périodes de forte productivité diatomique sont observées vers le milieu du stade MIS6, le MIS 5d, et durant le MIS 3, liées à l’apport de nutriments, notamment la silice dissoute, par le fleuve. Les faibles taux d’accumulation en diatomées sont enregistrés au début et à la fin du MIS 6, le MIS 5e, le début du MIS 4 et l’Holocène, quand la charge terrigène dans les eaux de surface empêche la mise en place d’une forte productivité. Au large il faut un apport conséquent de silice dissoute via les décharges du fleuve, et une faible consommation de ce nutriment en amont, pour avoir une forte productivité. L’intensification des conditions d’upwelling océanique favorise la productivité diatomique. L’abondance des diatomées d’estuaires saumâtres coïncide avec l’augmentation de l’influence des décharges fluviatiles vers ~230 ka BP, période de mise en place de l’édifice axial du système turbiditique du Congo. Deux études exploratoires ont été menées en complément: L’étude de la variabilité morphométrique de l’espèce Fragilariopsis doliolus qui montre une variation importante de la surface valvaire au cours du Quaternaire ; l’étude des isotopes de la silice qui s’est avérée complexe, à cause du mélange important de silice biogénique et lithogénique dans nos échantillons. / To precise the evolution of the Congo deep sea fan (western African margin, eastern tropical South Atlantic), and the paleoclimatic and paleoceanographic conditions of the zone during the last million years, variations of diatom productivity have been studied on two reference cores, KZAI-02 and RZCS-26, located respectively at 240 and 800 Kms of the Congo river mouth. This study is part of the REPREZAI project, REtrogradation/PRogradation in the ZAÏre deep-sea fan. High diatom accumulation rates were registered during the mid-part of MIS 6, the cold substage MIS 5d and the MIS 3-2, sustained essentially via nutrients, including dissolved silica, injected by the Congo River into the ocean. Low diatom accumulation rates were recorded during the early and late MIS 6, the MIS 5e, the early MIS 4 and the Holocene, when the terrigenous load in surface waters prevent a strong productivity. Further offshore, a substantial dissolved silica input by the discharges of the Congo river, but also a low consumption of this nutrient upstream, are required to have a strong productivity. The intensification of oceanic upwelling conditions also favors the siliceous productivity. The increasing influence of fluvial discharges, marked by a greater abundance of brackish diatoms off the mouth, corresponds fairly well to the establishment of the axial edifice of the Congo deep sea fan around ~ 230 ka BP. Two exploratory studies were conducted in complement: The study of morphometric variability of the diatom species Fragilariopsis doliolus, that highlighted important variation of the valvar surface during the Quaternary; the study of the silica isotopes that proved to be complex, because of important mix of biogenic and lithogenic silica in the samples.