Via a systematic literature review, this thesis investigates the possible benefits of employing social media as a learning tool in English as a second language classroom. The thesis is focused on the motivation for learning, potential grammar and vocabulary gains as results of using social media at the upper-secondary level. This systematic literature review is relevant since the current Swedish upper-secondary school’s curriculum promotes technology implementation and at the same time social media has become an everyday feature of many students’ lives. In order to measure the possible benefits of social media, this thesis uses a modified version of Koole’s (2009, p. 27) The Framework for the Rational Analysis of Mobile Education (FRAME) model, which originally was used to determine the optimal way for learning on a mobile platform. This thesis adapted that model and altered it to be applicable for social media platforms instead of mobile devices. The literature review found relevant peer-reviewed studies for this topic through a scholarly education database. The age of the participants in the chosen studies vary from 15-19 years old, and all the chosen studies focus on English as a second language in relation to an education system. The reviewed studies show that social media usage is mainly beneficial for motivation to enhance English vocabulary and grammar proficiency. However, social media usage does not show any significant benefits for grammar proficiency and vocabulary gains when students engage with social media. Although motivation to partake on various social media platforms in ESL does show that students tend to have a desire to expand their ESL knowledge. This review study is in agreement with the reviewed studies regarding the potential benefits of social media for ESL. The reviewed studies on their own were inconclusive as to why social media usage was beneficial. By comparing all the studies result, this literature review thesis promotes the idea that it is the social factor from engaging with social media that is the main reason that motivates students to acquire further ESL knowledge in a school setting or extramurally. Thus, the thesis suggests that an integration of social media in the Swedish upper-secondary school should be taken into consideration due to its proven motivational benefits

This study aims to contribute to the under-researched area of LGBTQI activism in the ‘Global South’ by performing a case study of LGBTQI activism in India, a country that provides an intriguing setting in which a wide range of sexual expressions has developed over time with attitudes towards them varying alongside. Same-sex activities have since the 1860s been considered a penal offence under Section 377 of the Indian Penal Code but in September 2018, the Indian Supreme Court overruled the law and decriminalized same-sex conduct. Within this context, frame analysis has been applied to six petitions by LGBTQI activists, filed to the Indian Supreme Court between 2016 and 2018, to unveil how Section 377 was framed by these activists. Results from the study show that Section 377 of the Indian Penal Code was framed as intrinsically discriminatory, being violative of constitutional as well as human rights, together with an emphasis on how the law relegates the LGBTQI community to second-class citizenship. Within the dominant framing of the law as discriminatory, the activists engaged in highlighting the imposition of Victorian morals by the British as the origin of the issue, along with factors that have enabled the perseverance of the issue, including the phrasing of the law and court failure to adapt to societal and international change. The subsequent consequences of the law were portrayed as stigmatization and personal losses for members of the LGBTQI community, as well as a negative impact on the state economy. By emphasising such aspects of the law, the activists advocated for the Indian Supreme Court to the overrule Section 377.

Esta Dissertação, submetida à Escola Politécnica da Universidade de São Paulo, tem como objetivo a caracterização de fratura por fadiga em componentes mecânicos. Esse estudo foi motivado por dois casos de falha: barras estabilizadoras de truques de trem para transporte de minério, e engrenagens de redutores de grande porte, aplicados em turbogeradores em usinas de cogeração. Foi apresentada uma revisão da literatura sobre nucleação e propagação de trincas de fadiga, sobre fadiga de contato e por flexão de dentes, os dois principais modos de falha de engrenagens, e sobre a dinâmica do truque de trem. As amostras coletadas de barras falhadas foram caracterizadas e suas superfícies de fratura foram examinadas. A trinca de fadiga iniciou-se em uma das dobras do rebaixo, em local com dano por corrosão, que favoreceram sua nucleação. Uma análise por elementos finitos foi realizada para analisar as tensões residuais devido ao processo de dobra da barra e conformação do rebaixo e as tensões devido à operação, num caso crítico de warp tracionando a barra. Os resultados mostraram que localmente a tensão de escoamento do material foi superada, especialmente nas regiões de pequeno raio de curvatura devido ao rebaixo. Para o caso das engrenagens, foi feita uma análise de confiabilidade por distribuição de Weibull com base nos tempos de vida dos componentes falhados e do restante fabricado. Do resultado inferiu-se que as falhas consistiram na \"mortalidade infantil\" dos componentes. Havia apenas uma amostra de engrenagem falhada disponível para análise, a qual foi detalhadamente caracterizada e cuja superfície de fratura foi minuciosamente estudada, a fim de determinar o modo e o mecanismo de falha, o início da trinca e, com isso, a causa da falha. Pôde-se concluir que a engrenagem falhou devido a fadiga por flexão de dente devido a um desalinhamento na montagem. Determinadas as causas das falhas, podem-se sugerir soluções, aumentando assim a confiabilidade dos componentes. As sugestões podem dizer respeito ao próprio projeto, à seleção de materiais, aos processos de fabricação, ao tratamento térmico, à montagem, ou ao sistema de lubrificação. / This Dissertation, submitted to the Escola Politécnica da Universidade de São Paulo, aims to characterize fatigue fracture in mechanical components. This study was motivated by two cases of failure: frame brace of train bogies for ore transportation, and gears of large transmission systems, applied to turbogenerators in cogeneration power plants. A literature review was presented on nucleation and propagation of fatigue cracks, contact and tooth bending fatigue, which are the two main modes of failure of gears, and train bogie dynamics. Samples collected of failed bars were characterized and their fracture surfaces were examined. The fatigue crack initiated at one of the bends of the \"fillister\", where corrosion damage took place - both of which favoured the nucleation. A finite element analysis was performed to analyze the residual stresses due to the bending process of the bar and the forming of the \"fillister\" and the stresses due to operation, in a critical case of warp tensioning the bar. The results showed that locally the yield stress of the material was exceeded, especially in the regions of small radius of curvature due to the \"fillister\". For the case of the gears, a reliability analysis was performed by Weibull distribution based on the lifetimes of the failed components and the remainder manufactured. From the result it was inferred that the failures consisted of the \"infant mortality\" of the components. Only one failed gear sample was available for the analysis, which was thoroughly characterised and whose fracture surface was minutely studied, in order to determine the mode and mechanism of failure, crack initiation and, hence, cause of failure. It was concluded that the gear failed due to tooth bending fatigue due to misalignment in the assembly. Having determined the causes of failures, solutions can be suggested, thus increasing the reliability of the components. Suggestions may concern the design itself, materials selection, manufacturing processes, heat treatment, assembly, or lubrication system.

This thesis explores the idea that time frame is an important determinant of commodity trading advisor (CTA) performance. Results allow us to reject the hypothesis that short-term price movements may be due only to noise, thus CTAs will have the same performance regardless of time frame. Using several performance measures and multi-factor models we find instead that CTAs who focus on short-term price changes are better positioned to benefit from advances in financial information processing and trade execution technology.

This paper summarizes research on the structural perfomance of wood elements and assemblies exposed to fire and reviews methodologies available to predict performance. This reasecrh provides a wealth of information on topics such as how fast a flame spreads across the surface of wood, how much smoke is produced during combustion and at what rate does wood char and at what heat release rate.

The frame tube buildings have been the most efficient structural system used for building which is in the range of 40-100storey. The soaring heights and the demanding structural efficiency have led to them having smaller reserves of stiffness and consequently stability. In this thesis a Non-linear analysis and stability check of frame-tube building is done. Nonlinear analysis offers several options for addressing problems of nonlinearity and in this work focus is on Geometric Non-linearity. The main sources can be identified as P-Æ’´ effect of gravity loading acting on a transversely displaced structure due to lateral loading and can also be due to member imperfections, such as member camber and out of plumb erection of the frame. During analysis the element response keep continuously changing as a function of the applied load so simple step computing methods have been employed instead of direct analytical methods. The problem here is dealt in a piece wise linear way and solved. In this thesis a program using the matrix approach has been developed. The program developed can calculate the buckling load and can do Linear and Non-linear analysis using the Mat-lab as the computing platform. Numerical results obtained from the program have been compared with the Finite Element software Mastan2. The comparative solutions presented later on in the report clearly prove the accuracy of the program and go on to show, how exploiting simple matrix equation can help solve the most complex structures in fraction of seconds. The program is modular in structure. It provides opportunity for user to make minor manipulation or can append his own module to make it work for his specific needs and will get reliable results.

Este estudo propõe-se a avaliar as relações existentes entre dois pares narrativos formados por uma narrativa curta e outra longa, da autora Lídia Jorge, compostos pelo conto Os Gafanhotos, inserido no romance A Costa dos Murmúrios (1988) e seu próprio romance, e o conto A Instrumentalina (1992) e o romance A Manta do Soldado (1996), fundando-se, desta forma, a nossa tetralogia construída. Esta análise procurou debruçar-se sobre as questões que a narrativa moldura, no primeiro par, incita, da mesma forma que dedicou-se a outras relações narrativas observadas nos dois pares, como a preocupação em denunciar o perigo da história única, a questão da emigração e da identidade portuguesa durante o período do Estado Novo, além da construção e utilização dos símbolos como potência dentro destas obras. Tendo como eixos de pesquisa identidade e alteridade, memória e herança, procuramos analisar como os conceitos impregnados nestas obras operam em sua elaboração, contribuindo para o melhor entendimento da complexidade da obra da autora. / This study intends to evaluate the relations between two narrative pairs formed by a short and a long story by Lídia Jorge, composed by the short story Os Gafanhotos, inserted in the novel A Costa dos Murmúrios (1988) and its own novel, and the tale A Instrumentalina (1992) and the novel A Manta do Soldado (1996), therefore, forming our constructed tetralogy. This analysis was looked for to focus on the issues of the narrative frame, in the first pair, as it was devoted to other narrative relations observed in the two pairs, such as concern to denounce the danger of single history, the question of emigration and Portuguese identity during the Estado Novo period, as well as the construction and use of symbols as power within these works. Having as axes of research identity and alterity, memory and inheritance, we try to analyze how the concepts that these works help in their elaboration, contributing to a better understanding of the complexity of the work of the author.

Made available in DSpace on 2015-03-05T18:12:37Z (GMT). No. of bitstreams: 0 Previous issue date: 25 / Nenhuma / Este estudo está vinculado a um projeto de pesquisa maior (CHISHMAN, 2007) e tem como objetivo fazer uma investigação semântico-computacional dos verbos de elocução do Português. A abordagem teórica e metodológica utilizada é a Semântica de Frames (Fillmore 1982, 1985), que está inserida na área da Linguística Cognitiva. Sob a perspectiva da Semântica de Frames, foi criada a base de dados FrameNet, que apresenta as possíveis combinações semânticas e sintáticas (valências) de cada palavra, juntamente com cada um dos seus sentidos. Este trabalho aborda os verbos de elocução a partir deste paradigma e nossa escolha se justifica pelo fato destes verbos serem uma classe que expressa uma série de nuances semânticas, como, por exemplo, a subjetividade e a expressão da emoção, permitindo que diferentes perspectivas se voltem para seu estudo. Além da revisão teórica, apresentamos um estudo empírico que compreende a descrição sintático-semântica de dez verbos de elocução. Para a compilação do corpus, valemo-nos dos re / This study is linked to a larger research project (CHISHMAN, 2007) and aims to make a computer-semantic Portuguese lexicon investigation of the communication verbs. The theoretical and methodological approach used is Frame Semantics (Fillmore 1982, 1985), which is inserted in the field of Cognitive Linguistics. In the perspective of Frame Semantics the FrameNet database was created, which presents the possible semantic and syntactic (valences) combination for each word, with each of its senses. This paper presents a proposal for a study of the communication verbs from this paradigm, and this choice is justified because these verbs are a class that expresses a series of semantic nuances, such as the subjectivity and expression of emotion, allowing different perspectives related to its study. Besides the theorical view, we present an empirical study which includes the syntactic-semantic description of ten communication verbs. For the compilation of the corpus, we used Sketch Engine tool. The results showed that

Submitted by Silvana Teresinha Dornelles Studzinski (sstudzinski) on 2017-04-24T15:43:59Z No. of bitstreams: 1 Ana Carla Assmann Morais_.pdf: 3164534 bytes, checksum: bbb67f057796122550dfcf9186e23401 (MD5) / Made available in DSpace on 2017-04-24T15:44:00Z (GMT). No. of bitstreams: 1 Ana Carla Assmann Morais_.pdf: 3164534 bytes, checksum: bbb67f057796122550dfcf9186e23401 (MD5) Previous issue date: 2017-02-22 / CNJ - Conselho Nacional de Justiça / A arte de produzir dicionários é uma prática que tem uma tradição de longo tempo na história da humanidade. Em específico, as obras de língua geral são utilizadas pelos falantes da língua para dirimir dúvidas em relação à ortografia e ao significado das palavras. Quanto à organização e ao tratamento do significado lexical, esses dicionários normalmente seguem a abordagem semasiológica. Valendo-se do potencial da Semântica de Frames (FILLMORE, 1982, 1985), este trabalho investiga em que medida a concepção enciclopédica de significado, defendida por essa teoria, pode contribuir para a prática lexicográfica tradicional. Até o momento, a Semântica de Frames foi aplicada em projetos que têm uma interface com a Lexicografia Computacional; no entanto, entendemos que essa abordagem tem atributos para beneficiar a lexicografia tradicional, como sugere Ostermann (2014). Assim, a partir da análise do item lexical mãe,baseada emcorpus, tencionamos avaliar em que medida a concepção enciclopédica do significado conforme a Semântica de Frames pode contribuir para o tratamento do significado lexical na prática lexicográfica. Para avaliar em que medida a Semântica de Frames pode servir de aporte teórico à Lexicografia, avaliamos a unidade lexical mãe. Metodologicamente, o trabalho tem duas frentes de análise. A primeira objetiva identificar os frames evocados pela unidade lexical mãe, na qual foi realizada uma análise semântica que tem como base os modelos cognitivos mãe, mapeados por Lakoff (1987);a Frame Net, com os frames Kinship e GivingBirth;e o corpus NILC (Núcleo Interinstitucional). A outra frente – a análise lexicográfica – buscou identificar, nos verbetes de mãe de seis dicionários de língua geral, nuances dos frames identificados na etapa anterior da análise.Para o processamento do corpus NILC, previsto na análise semântica, contou-se com o auxílio das principais funcionalidades da ferramenta computacional Sketch Engine. Os resultados da análise mostram que a unidade lexical mãe evoca cinco frames – Nascimento, de Parentesco, Relação Conjugal, Genético e Cuidados. Isso indica que os dicionários precisam incluir, em seus verbetes, o conhecimento contemplado por essas estruturas. / The art of dictionary making has a long tradition. In particular, general monolingual dictionaries are used by speakers of a language to solve doubts concerning words spelling and meaning. From what regards word sense treatment and organization, these dictionaries follow a semasiological approach. The present thesis explores Frame Semantics (FILLMORE, 1982, 1985) and its encyclopedic conception of meaning by examining its usability for traditional lexicographical practice. Although Frame Semantics has been mostly applied to projects in Computational Lexicography, we advocate, as suggested by Ostermann (2014), that traditional lexicography can benefit from this theory. Thus, through the corpus-based analysis of the lexical unit mãe, we intend to evaluate to which extent Frame Semantics encyclopedic conception of meaning may contribute to lexicographical treatment of word meaning. In order to explore the suitability of Frame Semantics as a theoretical framework for lexicography, mãeis described in a twofold way: first, a semantic analysis of the lexical unit is carried out and the frames evoked by it are identified, using Lakoff’s cognitive models for mother (LAKOFF, 1987), FrameNetKinship and Giving Birthframes, and data extracted from NILC corpus; second, six entries of mãein general monolingual dictionaries are analyzed in search for traces of the frames identified in the previous stage of the analysis. For processing NILC corpus Sketch Engine main functionalities were used. Results from the analysis show that the lexical unit mãeevokes five frames –Nascimento (birth), Parentesco(kinship), Relação Conjugal (conjugal relationship), Genético (genetic), and Cuidados(nurture). This finding shows that dictionaries should include the knowledge covered by these structures in their entries.

Made available in DSpace on 2016-04-26T18:13:23Z (GMT). No. of bitstreams: 1 Luana Meneguelli Bonone.pdf: 34693086 bytes, checksum: 93a43dc1fe684309593fabc7631dbaae (MD5) Previous issue date: 2013-10-15 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / This research aims to investigate whether there is,and how is constructed pluralityin news coverage in two weekly magazines Vejaand Carta Capital. The research corpus consists ofjournalistic texts from the magazines Vejaand Carta Capitalabout privatizations in Brazil for the periods 1996-1998 and 2005-2007. The specific objectives are to describe the concept ofprivatization in each one of the vehicles; identifysimilarities and differences present in the framework given the topic privatization in vehicles; identify whether the framework performed by each vehicle is pro-privatization, anti-privatization or offers plural perspective; identifying the opinion expressed by the vehicles on the role of the state in the economy; realize how vehicles relate the theme privatization to the evaluation of governments and elections; and identify how each vehicle evaluates theprivatization process in Brazil. These issues have beenstudied to understand how vehicles that excel by news interpretative news weekly magazines lead the race for hegemonyat different times of the political situation. In this sense, the research methodology isbe based in the Frame Analysis, as a tool using content analysis, quantitative and qualitative methods. It has been outlined the following hypotheses: there are probably coincidences in some points of frameworks, because of the fact that the two vehicles are entered in the same society, but the trend is that there are differences consistent with each editorial line; it is believed that in the two cases the magazines act as social actors who advocate a position (pro or anti privatization), not offering a plural debate, and the latter is that Vejamagazine presents a superficial interpretation, while Carta Capitaloffer a more complex analysis (although not necessarily plural.).The theoretical basis is given by the theories of the Frame Analysis (Goffman, Entman, Mauro Porto), the Agenda-Setting Theory (Maxwell McCombs, Donald Shaw and Walter Lippmann) and constructionist theories of communication (from Stuart Hall) / Estapesquisa tem como objetivo investigar se há e como se constrói a pluralidade na cobertura jornalística em duas revistas semanais Vejae Carta Capital. O corpusda pesquisa é constituído portextos jornalísticos das revistas Veja e Carta Capitalcom temas ligadosàs privatizações no Brasil dos períodos de 1996 a 1998 e de 2005 a 2007. Os objetivos específicos são: explicitaro conceito de privatização presente em cada um dos veículos; identificar coincidências e diferenças presentes no enquadramento dado ao tema privatizações nos veículos; identificar se o enquadramento realizado por cada veículo é pró-privatizações, antiprivatizaçõesou se oferece perspectiva plural; identificar a opinião expressa pelos veículos a respeito do papel do Estado na economia; perceber como os veículos relacionam o tema privatizações à avaliação de governos e às eleições; e identificar como cada veículo avalia o processo de privatizações no Brasil. Essas questões serão estudadas para entender a forma pela qualveículos que primam pelas notícias de cunho interpretativo revistas semanais conduzem a disputa por hegemonia em momentos distintos da conjuntura política. Nesse sentido, a metodologia tembase na Análise de Enquadramento, utilizando como ferramenta a análise de conteúdo, métodos quantitativo e qualitativo. Foram delineadas as seguintes hipóteses: é provável que haja coincidências em alguns pontos dos enquadramentos, devido ao fato dos dois veículos estarem inseridos na mesma sociedade; mas a tendência é que haja diferenças,condizentescom a distinçãode linhaseditoriais;nos dois casos as revistas atuam como atores sociais que advogam uma posição (pró ou antiprivatizações), não oferecendo um debate plural; e a última hipótese é que a revista Vejaapresenta uma interpretação mais superficial, ao passo que Carta Capitaldeve oferecer uma análise mais complexa (ainda que não necessariamente plural). A fundamentação teórica é constituídapelasteorias do Enquadramento (Goffman, Entman, Mauro Porto), teoria do Agenda-Setting(Maxwell McCombs, Donald Shaw e Walter Lippmann) e pelas teorias construcionistas da comunicação (a partir de Stuart Hall)