Within this thesis I explore what can be achieved when culture is critically assessed through a series of theories that mobilise a spatial imaginary. I place the concepts of atmosphere, connection, site and encounter, and theories of emergence via terms such as movement, practice and embodiment, into tension with a single case study: Goth. Goth is a music based grouping, emerging from Punk, New Romantic, Indie and Glam Rock style and music cultures in the late 1970s, with a significant near-global presence in the popular culture industries and links to several salient media controversies; including the Columbine High School massacre, the murder of Sophie Lancaster, and fears over self-harm and suicide. I specifically draw on the vocabularies from within non-representational geographies of performance, relational materiality, affect and social anxiety to re-work understandings of this collectivity. I question what is involved in the material practices of Goth, explore how the practice and experience of Goth is articulated through specific sites, examine how Goth participates in the production and circulation of cultures of anxiety or (un)popularity; and reconsider the concept of ‘subculture’. To do so, I employ a range of methodologies, from guided walks to photo-diaries, within multi-site field research throughout the UK, Tokyo and New York City. I conclude that Goth and culture more generally can be theorised in a number of ways: it emerges as a performed series of embodied acts; it is co-produced in complex relations with non-humans; it can be thought of as a series of modulating affective atmospheres; it coalesces as a collectivity and circulates through events; and it is co-produced through sites and media events. None of these dominates over or diminishes the other; rather they are co-constitutive and interdependent.

O objetivo desse trabalho foi compreender em que medida uma estratégia metavisual, utilizada em sala de aula, pode ajudar na construção e reconstrução de ideias, especificamente numa atividade introdutória de eletroquímica e quais os fatores envolvidos nesse processo. Para isso, foi desenvolvida uma atividade para o estudo inicial de duas interações eletroquímicas, envolvendo ferro e soluções de sulfato de cobre (II) e ácido sulfúrico. Foi utilizada uma metodologia qualitativa, envolvendo 32 estudantes do 3.o ano do ensino médio de uma mesma escola, idades entre 16 e 18 anos, em que foram feitos os registros audiovisuais dos alunos realizando a atividade e as falas transcritas para análise. Além disso, eles responderam a um questionário para se pesquisar por indícios nas habilidades metavisuais em 1D e 2D e, por último, uma entrevista semiestruturada. Duas categorias foram elaboradas com o objetivo de se classificar as hipóteses propostas para posterior comparação, uma para o nível simbólico e a outra para o submicro, possibilitando a observação de possíveis evoluções e dificuldades encontradas. Com relação às habilidades metavisuais, também foram necessárias três categorias para compor a análise. Os resultados indicam que a estratégia metavisual mostrou-se eficiente para a construção e reconstrução de conceitos associados à eletroquímica, na medida em que as concepções alternativas e dificuldades, comuns nessa área, puderam ser discutidas e modificadas. Houve evolução das hipóteses dos alunos, com intensa modelagem de conceitos, propiciada pela comparação de imagens (metavisualização), tanto no nível simbólico quanto no submicro. Foi observado que os estudantes demonstraram maior dificuldade ao elaborar as hipóteses do submicro, possivelmente por esse nível ter mais detalhes, maior aprofundamento de conceitos, ser mais abstrato e, portanto, não ser natural para os estudantes. Adicionalmente, o tempo de aprendizagem e de modelagem revelou-se diferente para os grupos, o que sugere aos professores considerarem isso no processo ensino-aprendizagem. Finalmente, os resultados parecem apontar também que as habilidades metavisuais e as conexões entre os níveis representacionais podem estar associados a melhores aprendizados e que, muitas vezes, é necessária a utilização de diversas representações e de um tempo maior para que os alunos consigam evoluir. Vale ressaltar que o assunto ainda é pouco pesquisado, se comparado a outros temas e, sendo assim, recomendam-se mais pesquisas sobre as estratégias metacognitivas no ensino de ciências e de química, em que as suas contribuições, no aprendizado dos alunos, possam ser mais investigadas. / The purpose of this study was to understand the extent to which metavisual strategy used in the classroom can help in the construction and reconstruction of ideas, specifically an introductory activity in electrochemistry and the factors involved in this process. For this purpose, an activity was developed for the initial study of two electrochemical interactions involving iron and copper sulfate and sulfuric acid solutions. A qualitative methodology was employed, involving 32 students of the 3rd year of high school from the same school, aged 16 to 18, where audiovisual student records were made performing the activity and the speeches transcribed for analysis. In addition, they answered a questionnaire to search for clues in metavisual skills in 1D and 2D and, finally, a semi-structured interview was made. Two categories were prepared for the purpose of classifying the hypotheses proposed for comparison, one for the symbolic level and the other for submicro level, enabling to observe possible changes and difficulties. Regarding metavisual skills three categories were also needed to compose the analysis. The results indicate that metavisual strategy proved efficient for the construction and reconstruction concepts related to electrochemistry, in that alternative conceptions and difficulties common in this field, could be discussed and modified. There was a significant evolution of the hypotheses proposed by students, with intense modeling concepts, fostered by comparing images (metavisualization) both at the symbolic as in the submicro level. It was observed that the students showed greater difficulty in preparing the hypotheses of submicro level, possibly because this level has more details, deeper understanding of concepts, is more abstract and therefore it will not be natural for students. Furthermore, the learning time and modeling proved to be different for the groups, suggesting teachers should consider it within the teaching-learning process. Finally, the results also seem to indicate that metavisual skills and the connections between the representational levels may be associated with better learning and it often becomes necessary to use different representations and more time in order for students to be able to evolve. It is noteworthy that the subject is still poorly researched, compared to other topics and, therefore, it is recommended more research on metacognitive strategies in teaching science and chemistry, in which their contributions to student learning, may be more investigated.

Este trabalho apresenta uma metodologia para a concepção, produção e aplicação de simuladores de experimentos baseados em hipervídeos sobre o tema pilhas. A eletroquímica é fundamental na química e está presente nas propostas curriculares em todos os níveis em que a disciplina é ministrada. Porém, inúmeras dificuldades de ensino e aprendizagem são reportadas na literatura sobre o tema pilhas, isto da educação básica ao ensino superior. Isso tem motivado a proposição de diversos recursos didáticos e abordagens metodológicas nos últimos 90 anos. Dentre estes recursos, para este projeto, destacam-se a simulação via softwares e a utilização de vídeos. Sendo assim, propomos uma metodologia para o desenvolvimento de um simulador baseado em hipervídeos que articula as seguintes ideias: representação múltipla dos conceitos químicos; competências representacionais; grau de abertura de atividades experimentais e uso de registro audiovisual no lugar de representações icônicas dos experimentos simulados. O papel instrucional do simulador foi avaliado em atividade com 56 estudantes do ensino médio. Os resultados apontam que o seu uso contribuiu para o desenvolvimento das competências representacionais dos estudantes, sobretudo em relação aos conceitos de pilhas associados às dimensões fenomenológica e simbólica. / This work presents a methodology for design, production and application of simulators of experiments based on hypervideos on the topic of cells. Electrochemistry is a fundamental Field of chemistry. Indeed, it is present in the curricular proposals at all levels in which chemistry is taught. Several teaching and learning difficulties are reported in the literature regarding the batteries in basic education and higher education. This has motivated the proposal of different didactic resources and methodological approaches in the past 90 years. In this work we highlight the simulation via software and the use of videos. We propose a methodology for the development of a simulator based on hypervideos that articulates the following ideas: multiple representation of chemical concepts; representational competences; openness level of experimental activities; use of audio-visual registration in place of iconic representations of simulated experiments. We evaluated the instructional role of simulator in an activity with 56 high school students. The results show that the use of the simulator based on hypervideo contributed to the development of students\' representational competences, especially in relation to the concepts of batteries associated with the phenomenological and symbolic dimensions.

The present inquiry sets out to explore the self as an expatriate eacher working in international schools, through the lens of ositioning. To better understand complex phenomena such as the self and its episodic encounters in the social arena, this study uses positioning theory as an analytical framework. The self is followed as it moves from its private sphere to the social milieu where it takes on its multiplicity, as a social being. The dynamics of positioning is illustrated by the mutually determined triad. Hence, the self is looked at in one of its main social engagements: the recruitment where the social episode is mutually framed by the storylines of the participants, the social force and the position taken on. Illustrations are given to exemplify and extend the use of positioning theory in an international school context. The implications brought up by the results of the present inquiry are applicable not only to the expatriate teacher but also to the wider expatriate community.

Social scientific measurement is much desired and much criticized. In this dissertation I evaluate one of the main approaches to social scientific measurement that has nevertheless been virtually ignored by philosophers - the psychometric approach. Psychometric measures are typically used to measure unobservable attributes such as intelligence and personality. They typically take the form of questionnaires or tests and are validated by statistical tests of properties such as reliability and model-fit. My thesis is two-fold. In the first, more critical part, I argue that psychometric instruments normally fail to fulfil plausible criteria for adequate measurement. To make this argument, I define and defend a conception of quantitative representation necessary for measurement. My definition is grounded in the Representational Theory of Measurement but avoids the main critiques this theory has faced. I then show that the typical psychometric process of measure validation fails to produce evidence of such quantitative representation. The upshot is that although a quantitative interpretation of psychometric data is common, it is largely unwarranted. In the second part, I argue that psychometric instruments are nonetheless apt for various other purposes. This argument hinges on a new outlook on how concepts should be formed for psychometric purposes. Philosophers have traditionally thought that concepts should cohere with intuitions and/or pick out so-called natural kinds, while many psychometricians argue that concepts should pick out real as opposed to constructed attributes. I argue that, when it comes to social scientific measurement, it is much more important to focus on the usefulness of the concept, where usefulness can take on different meanings in different contexts. Building on the defended outlook on concept formation, I show what useful functions psychometric instruments can serve even when they fail at quantitative representation.

Maintaining the essential features of local democracy, representation and contestation, my theory allows for the representation of the interest of subpopulations in the global community by actors such as nongovernmental organization and intergovernmental organizations. I will begin by outlining what features are necessary for a theory’s consideration as democratic in nature. Then, relying upon democracy in a broad sense, it will be my aim to demonstrate that the right to democracy is universal human right. The following stage will provide the backing, by way of the moral progress of human rights, that the right to democracy is expressible by “importantly affected” subgroups in the global arena. The final stage of my conceptual defense will focus on the validation of representatives who have no institutional connection with the populations they represent. With such established, the paper will proceed into a practical defense, discussing how claims made by actors can be accepted or rejected by represented subpopulations. It will then become necessary to demonstrate that the paternalistic claims made by representatives are incorporable into a democratic theory without forgoing the essence of democracy. To show this is feasible, methods of appealing paternalistic claims by way of international human rights courts will be explained. Finally, possibilities to mediate general feasibility issues will be explored.

The purpose of this study was to investigate the effect of time-compressed narration and representational adjunct images on undergraduate college students' 1) ability to recall and recognize information in a multimedia learning environment, and 2) overall satisfaction with this type of learning environment. The goals of this research were to shed light on time-compression technology incorporated into multimedia learning environments, help fill the existing gap in the research literature by merging two disjoint bodies of research, and aid instructors and instructional designers to better understand time-compression technology while creating rigorous multimedia materials. This research was guided by the underlying principles of multimedia learning. The experiment was a 4 Audio Speeds (1.0 = normal vs. 1.5 = moderate vs. 2.0 = fast vs. 2.5 = fastest rate) x Adjunct Image (Image Present vs. Image Absent) factorial design. Audio speed and adjunct image both served as between subject conditions. Cued-recall, content recognition and learner satisfaction served as the dependent measures. Multimedia interventions were developed to execute this design. A total of 305 research participants were recruited from a public, southeastern university in the United States in this study. Fifty-five percent of the participants were male and 92% indicated that English was their primary language. Forty-nine percent of the participants were junior classification, 4% were freshman, 19% were sophomore, 26% were seniors, with the remaining indicating other. The median age of the participants was 22, and ranges in age from 18 to 53 years old. Data were analyzed using a series of factorial Analysis of Variance (ANOVA) procedures. Results showed statistically significant differences at 2.5 times the normal audio speed, in which performance on cued-recall and content recognition tasks was significantly lower than other audio speeds. Furthermore, representational adjunct images had a significant positive effect on cued-recall, but not content recognition. Participants in the normal audio speed and picture present groups were significantly more satisfied than other treatments. Recommendations for future research are provided as well as advice for instructors, instructional designers and learners interested in time-compression technology.

Teaching algebra-based concepts to students with learning disabilities: The effects of preteaching using a gradual instructional sequence by Sarah Jean Watt An Abstract of a thesis submitted in partial fulfillment of the requirements for the Doctor of Philosophy degree in Teaching and Learning Special Education) in the Graduate College of The University of Iowa May 2013 Thesis Supervisor: Associate Professor William J. Therrien Research to identify validated instructional approaches to teach math to students with LD and those at-risk for failure in both core and supplemental instructional settings is necessary to assist teachers in closing the achievement gaps that exist across the country. The concrete-to-representational-to-abstract instructional sequence (CRA) has been identified through the literature as a promising approach to teaching students with and without math difficulties (Butler, Miller, Crehan, Babbitt, & Pierce, 2003; Cass, Cates, Smith, & Jackson (e.g. CSA), 2003; Flores, 2010). The CRA sequence transitions students from the use of concrete manipulatives to abstract symbols through the use of explicit instruction to increase computational and conceptual understanding. The main purpose of this study was to assess the effects of preteaching essential pre-algebra skills on the overall algebra achievement scores for students with disabilities and those at-risk for failure in math. Specifically the study examined the following research questions: (1) What are the effects of preteaching math units using the CRA instructional sequence on the algebra achievement of students with LD and those at risk for math failure? (2) What are the effects of preteaching math units using the CRA instructional sequence on the transfer of algebra-based skills of students with LD and those at risk for math failure to the general education setting? (3) What are the effects of preteaching math units using the CRA instructional sequence on the maintenance of algebra-based skills for students with LD and those at risk for math failure? Summary of Study Design and Findings Thirty-two students enrolled in one of four 6th grade classrooms across two elementary schools participated in this study. Sixth grade students who currently receive tier 2 or tier 3 supplemental and intensive instruction in math; and those identified as having a math learning disability will be participants. A treatment and control, pre/post experimental design was used to examine the effect of the intervention on students' math achievement. The intervention was replicated across two math units related to teaching algebra-based concepts: Solving Equations and Fractions. The treatment condition consisted of a combination of preteaching and the use of the CRA instructional sequence. Prior to each unit, Solving Equations and Fractions, researchers pretaught students 3 essential prerequisite skills necessary for success in the upcoming unit, at the concrete, representational, and abstract levels of learning. Each preteaching session lasted for ten days, 30 minutes each day. Immediate, delayed, and follow-up measures were used to support the examination of the research questions and hypotheses. Overall findings indicate that the combination of preteaching using the CRA gradual sequence is effective at improving the overall algebra performance for students with disabilities.

There are two main portions to this study. In the first portion (Chapters I-III) we identify policies, procedures, programs, and pedagogical practices in public school districts in Texas that increase levels of college preparation among black and Hispanic students across a range of educational settings (rural, suburban, and urban). We identify these practices by interviewing school administrators at twenty-two school districts throughout the state. The school districts were selected by using education production function models to identify the highest and lowest performing school districts on a variety of college preparation measures. The first portion of the study is largely descriptive and qualitative in orientation. In the second portion of the study we identify high college preparation levels among minority students as a positive externality. Because college attendance benefits students as individuals, regardless of the beneficial aspects of college attendance for society at large, students, parents, and others will request that school districts increase college preparation levels to some degree. However, given the nature of positive externalities, we explore the possibility that the reason why some school districts have higher college preparation levels among minority students than others is that they are led by an official policy-maker (the superintendent) who is committed to acting in the long-term interests of society (in other words, whose representational style is to act as a trustee). The second portion attempts to extend the causal chain back one link by exploring the possibility that superintendent representational style affects the types of policies, procedures, programs and pedagogical practices adopted and the district’s commitment to implementing them, which in turn affects college preparation levels among minority students. The relationship between superintendent representational style and minority student preparation for college is tested using two data sources: a survey of public school superintendents throughout Texas gathered by the Texas Educational Excellence Project and college preparation measures gathered by the Texas Education Agency for all public schools in Texas.

Today’s rapid development of powerful tools for geneexpression analysis provides unprecedented resources forelucidating complex molecular events. The objective of this workhas been to apply, combine andevaluate tools for analysis of differential gene expressionusing atherosclerosis as a model system. First, an optimisedsolid-phase protocol for representational difference analysis(RDA) was applied to twoin vitromodel systems. Initially, The RDA enrichmentprocedure was investigated by shotgun cloning and sequencing ofsuccessive difference products. In the subsequent steps,combinations of RDA and microarray analysis were used tocombine the selectivity and sensitivity of RDA with thehigh-throughput nature of microarrays. This was achieved byimmobilization of RDA clones onto microarrays dedicated forgene expression analysis in atherosclerosis as well ashybridisation of labelled RDA products onto global microarrayscontaining more than 32,000 human clones. Finally, RDA wasapplied for the investigation of the focal localisation ofatherosclerotic plaques in mice usingin vivotissue samples as starting material. A large number of differentially expressed clones wereisolated and confirmed by real time PCR. A very diverse rangeof gene fragments was identified in the RDA products especiallywhen they were screened with global microarrays. However, themicroarray data also seem to contain some noise which is ageneral problem using microarrays and should be compensated forby careful verification of the results. Quite a large number of candidate genes related to theatherosclerotic process were found by these studies. Inparticular several nuclear receptors with altered expression inresponse to oxidized LDL were identified and deserve furtherinvestigation. Extended functional annotation does not liewithin the scope of this thesis but raw data in the form ofnovel sequences and accession numbers of known sequences havebeen made publicly available in GenBank. Parts of the data arealso available for interactive exploration on-line through aninteractive software tool. The data generated thus constitute abase for new hypotheses to be tested in the field ofatherosclerosis. <b>Keywords:</b>representational difference analysis, geneexpression profiling, microarray analysis, atherosclerosis,foam cell formation