Studiens syfte är att undersöka möjligheter till att implementera kommunikativa dragen i utvecklandet av matematikundervisningen genom lärares perspektiv och erfarenheter. Denna studie besvarar tre forskningsfrågor som rör utmaningar, framgångsfaktorer, de kommunikativa dragens effekter och användningen av dessa strategier i undervisningen. I denna fallstudie användes en metodkombination av observation och intervju. Resultaten visade att implementeringen av de kommunikativa dragen stötte på flera utmaningar, såsom tidsbegränsningar och elevers varierande förutsättningar. Det identifierades också framgångsfaktorer, såsom tillgängligheten till dragen, möjligheten att anpassa dragen och en trygg miljö. Att beskriva och resonera var de mest använda kommunikativa dragen av lärarna, medan andra användes i mindre utsträckning. Studien visar att det är möjligt för lärare att med relativt lite stöd introducera kommunikativa drag i undervisningen och att de ser det som ett användbart verktyg för att stödja elevernas kommunikation och matematiska utveckling.

Este presente trabalho analisou as expressões de pedidos em japonês usadas pelos nisseis no Brasil, observando as estratégias e as formas de tratamento utilizadas pelos informantes, que têm a proficiência da língua japonesa. Por meio de questionários, em que os informantes responderam como realizariam pedidos em algumas situações, a coleta de dados foi feita nas cidades de São Paulo, Suzano e Mogi das Cruzes, onde há vários eventos de associações japonesas. Considerando estudos e teorias sobre expressões de pedido e cortesia verbal, como de Ide (1986), Kumatoridani (1995), Kabaya (2002, 2003, 2006) e Silva (2008), foram realizadas análises para descobrirmos as principais estratégias e as formas de tratamento utilizadas pelos informantes, e também observarmos os principais fatores sociais que influenciam no desempenho dos informantes quando executam um pedido. Com o resultado da análise, foi constatado que as expressões de pedido realizadas pelos nisseis no Brasil em geral são satisfatórias, porém, em situações em que o grau de ônus gerado é alto, há uma tendência de aumentar a quantidade do uso de expressões de pedido inadequadas. Os fatores sociais sexo e a vivência dos informantes no Japão foram os que mais influenciaram para um melhor desempenho na execução de pedidos, porque as mulheres e os nisseis com vivência no Japão obtiveram um desempenho evidentemente melhor do que os homens e os informantes que nunca moraram naquele país. / This present study analyzed the requests expressions used in Japanese by the second-generation citizen of Japanese ancestry in Brazil, observing strategies and forms of treatment used by informants, who have knowledge of the Japanese language. Through questionnaires, in which the informants answered as realize request in some situations, the data was collected in three cities: São Paulo, Suzano and Mogi das Cruzes, where there are several events of Japanese associations. Bearing in mind studies and theories about requests expressions and politeness, as Ide (1986 ) , Kumatoridani (1995 ) , Kabaya (2002 , 2003, 2006 ) and Silva (2008 ), analysis to discover the main strategies and forms treatment used by informants were executed, and also the main social factors that influence the performance of the informants when fulfill ones request was observed. With the result of the analysis, was showed up that the expressions of request used by the second-generation citizen of Japanese ancestry in Brazil are generally satisfactory, however, in situations, where the level of burden produced is high, there is a tendency to increase the amount of use of inadequate requests expressions. The social factors gender and the experience living in Japan were the most influenced to get better performance in fulfillment of request, because women and the second-generation citizen of Japanese ancestry with experience in Japan evidently obtained a better performance than men and informants who have never lived there.

Este presente trabalho analisou as expressões de pedidos em japonês usadas pelos nisseis no Brasil, observando as estratégias e as formas de tratamento utilizadas pelos informantes, que têm a proficiência da língua japonesa. Por meio de questionários, em que os informantes responderam como realizariam pedidos em algumas situações, a coleta de dados foi feita nas cidades de São Paulo, Suzano e Mogi das Cruzes, onde há vários eventos de associações japonesas. Considerando estudos e teorias sobre expressões de pedido e cortesia verbal, como de Ide (1986), Kumatoridani (1995), Kabaya (2002, 2003, 2006) e Silva (2008), foram realizadas análises para descobrirmos as principais estratégias e as formas de tratamento utilizadas pelos informantes, e também observarmos os principais fatores sociais que influenciam no desempenho dos informantes quando executam um pedido. Com o resultado da análise, foi constatado que as expressões de pedido realizadas pelos nisseis no Brasil em geral são satisfatórias, porém, em situações em que o grau de ônus gerado é alto, há uma tendência de aumentar a quantidade do uso de expressões de pedido inadequadas. Os fatores sociais sexo e a vivência dos informantes no Japão foram os que mais influenciaram para um melhor desempenho na execução de pedidos, porque as mulheres e os nisseis com vivência no Japão obtiveram um desempenho evidentemente melhor do que os homens e os informantes que nunca moraram naquele país. / This present study analyzed the requests expressions used in Japanese by the second-generation citizen of Japanese ancestry in Brazil, observing strategies and forms of treatment used by informants, who have knowledge of the Japanese language. Through questionnaires, in which the informants answered as realize request in some situations, the data was collected in three cities: São Paulo, Suzano and Mogi das Cruzes, where there are several events of Japanese associations. Bearing in mind studies and theories about requests expressions and politeness, as Ide (1986 ) , Kumatoridani (1995 ) , Kabaya (2002 , 2003, 2006 ) and Silva (2008 ), analysis to discover the main strategies and forms treatment used by informants were executed, and also the main social factors that influence the performance of the informants when fulfill ones request was observed. With the result of the analysis, was showed up that the expressions of request used by the second-generation citizen of Japanese ancestry in Brazil are generally satisfactory, however, in situations, where the level of burden produced is high, there is a tendency to increase the amount of use of inadequate requests expressions. The social factors gender and the experience living in Japan were the most influenced to get better performance in fulfillment of request, because women and the second-generation citizen of Japanese ancestry with experience in Japan evidently obtained a better performance than men and informants who have never lived there.

Transportation planning and urban development in the United States have synchronously emerged over the past few decades to encompass goals associated with sustainability, improved connectivity, complete streets and mitigation of environmental impacts. These goals have evolved in tandem with some of the relatively more traditional objectives of supply-side improvements such as infrastructure and capacity expansion. Apart from the numerous federal regulations in the US transportation sector that reassert sustainability motivations, metropolitan planning organizations and civic societies face similar concerns in their decision-making and policy implementation. However, overall transportation planning to incorporate these wide-ranging objectives requires characterization of large-scale transportation systems and traffic flow through them, which is dynamic in nature, computationally intense and a non-trivial problem. Thus, these contemporary questions lie at the interface of transportation planning, urban development and sustainability planning. They have the potential of being effectively addressed through state-of-the-art transportation modeling tools, which is the main motivation and philosophy of this thesis. From the research standpoint, some of these issues have been addressed in the past typically from the urban design, built-environment, public health and vehicle technology and mostly qualitative perspectives, but not as much from the traffic engineering and transportation systems perspective---a gap in literature which the thesis aims to fill. Specifically, it makes use of simulation-based dynamic traffic assignment (DTA) to develop modeling paradigms and integrated frameworks to seamlessly incorporate these in the transportation planning process. In addition to just incorporating them in the planning process, DTA-based paradigms are able to accommodate numerous spatial and temporal dynamics associated with system traffic, which more traditional static models are not able to. Besides, these features are critical in the context of the planning questions of this study. Specifically, systemic impacts of suburban and urban street pattern developments typically found in US cities in past decades of the 20th century have been investigated. While street connectivity and design evolution is mostly regulated through local codes and subdivision ordinances, its impacts on traffic and system congestion requires modeling and quantitative evidence which are explored in this thesis. On the environmental impact mitigation side, regional emission inventories from the traffic sector have also been quantified. Novel modeling approaches for the street connectivity-accessibility problem are proposed. An integrated framework using the Environmental Protection Agency's regulatory MOVES model has been developed, combining it with mesoscopic-level DTA simulation. Model demonstrations and applications on real and large-sized study areas reveal that different levels of connectivity and accessibility have substantial impacts on system-wide traffic---as connectivity levels reduce, traffic and congestion metrics show a gradually increasing trend. As regards emissions, incorporation of dynamic features leads to more realistic emissions inventory generation compared to default databases and modules, owing to consideration of the added dynamic features of system traffic and region-specific conditions. Inter-dependencies among these sustainability planning questions through the common linkage of traffic dynamics are also highlighted. In summary, the modeling frameworks, analyses and findings in the thesis contribute to some ongoing debates in planning studies and practice regarding ideal urban designs, provisions of sustainability and complete streets. Furthermore, the integrated emissions modeling framework, in addition to sustainability-related contributions, provides important tools to aid MPOs and state agencies in preparation of state implementation plans for demonstrating conformity to national ambient air-quality standards in their regions and counties. This is a critical condition for them to receive federal transportation funding. / text

Objektive of the thesis: The objective of this study is to get an overview of soldiers activities of the reconnaissance platoon of HQ company of 41st mechanized battalion, located in Ţatec. To try to confirm or refute the results of my bachelor thesis, in which I found out, that soldier in reconnaissance position needs mainly endurance for his work. Methods: Main used method is the analysis time frame and creation of characteristics of the given possition in the AČR. I will conduct by standardized tests for testing of motor skills. Results: Think out tests, that best reflect the activities of soldiers of reconnaissance platoon and to determine their level of motor skills. Setting the limits of tests of physical training for selection of candidates for the reconnaissance platoon. Key words: Description of occupational activities, professiography, motor skills, motor tests.

O estudo da argumentação e da construção de argumentos vem ganhando cada vez mais espaço na área de pesquisa de Ensino de Ciências. A mudança no foco de estudo do sujeito epistêmico, de uma perspectiva individual para a ideia de uma comunidade de conhecedores, nos permite analisar como se dá o processo de produção, comunicação e avaliação do conhecimento científico escolar por meio das interações discursivas. O presente trabalho se insere no contexto da necessidade de produzir conhecimentos acerca dos aspectos epistêmicos no processo de construção de argumentos tendo como foco professores e formador. Objetivamos investigar a mobilização de Práticas Epistêmicas dos professores para a construção de argumentos e suas relações com o Movimento Epistêmico do formador, analisando como as ações do formador favorecem a adoção de tais práticas e promove a construção de argumentos durante a aplicação de uma Sequência Didática em Ecologia em uma oficina de formação continuada de professores de ciências. Mediante a relação entre os Movimentos Epistêmicos do formador e a mobilização de Práticas Epistêmicas pelos professores, analisamos os aspectos epistêmicos na construção de argumentos, tendo como base os argumentos de referência que a Sequência Didática traz em seu escopo. Nossos resultados apontam dois aspectos relevantes desse processo: o direcionamento e a avaliação. O aspecto de direcionamento do formador se constitui na interação entre os objetivos da Sequência Didática e a comunidade de aprendizes. O aspecto de avaliação para a construção de argumentos se caracterizou nos momentos em que o direcionamento se relacionava com as crenças, valores e saberes dessa comunidade. Ressaltamos a importância de desenvolvimento de maiores estudos que se aprofundem sobre os aspectos relacionados ao que conta como conhecimento relevante e os meios para adquiri-lo no contexto de formação de professores. / The study of argumentation and the construction of arguments has been more discussed in the field of research in science teaching. Changing the focus of study of the epistemic subject, from an individual perspective to an idea of a community of experts, allow us to analyze hoe the process of knowledge production, process of communication and process of evaluation of the scientific knowledge through epistemic aspect in the argument-construction process focusing on teacher and trainers. It aims to investigate the mobilization of teacher\'s Epistemic Practices when constructing arguments and its relation to the educator\'s Epistemic Moves, analyzing how the educator\'s actions favor the adoption of such practices and promotes the construction of arguments when using a didactic sequence application in Ecology in a continuing education workshop for science teachers. Through the relationship between the educator\'s Epistemic Moves and the mobilization of teacher\'s Epistemic Practices, it was possible to analyze the epistemic aspects in the construction arguments, based on the reference arguments that are within the scope of Didactic Sequence. Our results show two relevant aspects of this process: targeting and evaluation. The trainer\'s targeting aspect is based on the interaction between the goals of the Didactic Sequence and the community of learners. The evaluation aspect focusing on the construction of arguments, based on situations in which the orientation was related to the beliefs, values and knowledge in the present community. We highlighted the importance of developing more efforts to go deeper on the aspects related to relevant knowledge and the ways to acquire in the context of teacher training.

Este trabalho tem como objetivo central compreender as possíveis relações entre os movimentos e práticas epistêmicos produzidos pelo professor e por alunos e a construção de argumentos. Apresentamos a análise das interações discursivas entre uma professora de ciências e alunos de sétimo ano do ensino fundamental ao longo de uma sequência didática intitulada O problema do costão rochoso. A metodologia foi feita a partir de uma abordagem qualitativa e envolveu a análise das transcrições das aulas registradas em vídeo. A sequência didática se baseou no modelo de teorias competitivas, em que são apresentadas hipóteses que podem sustentar uma afirmação. Além de escolher qual hipótese seria a adequada, os alunos deveriam também elaborar justificativas sobre as escolhas que fizeram. As análises realizadas abrangeram a identificação das relações entre tempo e práticas científicas escolares ou de exposição processual; identificação dos movimentos e práticas epistêmicos oriundos da interação entre professora e alunos; identificação do produto e processo argumentativos e análise comparativa dos discursos orais e escritos dos alunos durante a resolução do problema proposto. Foi possível constatar que as práticas epistêmicas muitas vezes especificam o movimento epistêmico evidenciando o objetivo a que ele se propõe, pois o mesmo movimento epistêmico pode estar relacionado a práticas epistêmicas diferentes. Na segunda parte da aula foram encontradas práticas epistêmicas referentes à construção de argumentos, as quais se relacionam principalmente à avaliação do argumento e à verificação da interpretação de dados/evidências. Os alunos de maneira geral, por meio das interações discursivas, e do papel mediador do professor, foram capazes de identificar os dados, organizar as informações e escolher uma das hipóteses, e produziram discursos orais e escritos, os quais apresentaram características bastante distintas em relação a estrutura e composição. / This work has as main objective to understand the possible relationship between the movements and epistemic practices produced by the teacher and students and the construction of arguments. The analysis of the discursive interactions between a science teacher and students in 7th grade of elementary school (students with eleven and twelve years) along a didactic sequence entitled The rocky shore problem\". The methodology was taken from a qualitative approach and involved the analysis of the transcripts recorded on video. The didactic sequence was based on the competitive theories model, in which hypotheses that can sustain a claim are presented. In addition to choosing which hypothesis is appropriate, students should also elaborate justifications for the choices they made. The analyzes included the identification of relationships between time and scientific scholar practices or procedural display; identification of movements and epistemic practices arising from the interaction between teacher and students; product identification and argumentative process and comparative analysis of oral and written discourse of students during solving the problem. The epistemic practices found often specify the epistemic move highlighting the goal to which he proposes as the same epistemic move can be related to different epistemic practices. In the second part of the lesson epistemic practices can be related to the construction of arguments, which relate primarily to the assessment of the argument and verification of interpreting data/evidence. Students in general, through discursive interactions, and the mediating role of the teacher, were able to identify the data, organize information and then choose one of the hypotheses and produce oral and written discourse , which showed very distinct features in structure and composition.

A sense of school belonging has a powerful effect on students' emotional, motivational and academic functioning. This phenomenological research synthesized qualitative literature presenting pupil voice on school belonging, investigated how secondary school-aged students who have undergone a 'managed move' experience belonging, and sought their views on the role stakeholders might play in promoting school belonging for managed move students. The author discusses policy and practice implications and outlines a dissemination strategy. The first paper is an interpretative meta-synthesis involving a process of reciprocal translation and synthesis of seven qualitative studies was used to examine secondary school students' experiences of school belonging. The second paper is an empirical study investigating how secondary school students who have undergone a managed move experience school belonging, and what they feel would promote a sense of school belonging for other managed move students. This research employed purposive sampling, an interpretative case study design and semi-structured phenomenological interviews. Interpretative Phenomenological Analysis (IPA) was used to analyse data. The meta-synthesis (Paper 1) generated four main concepts: school belonging and intersubjectivity; school belonging and knowledge, understanding and acceptance of individual identity; school belonging and experiences of in-group membership and school belonging and safety/security, and the 'higher-order concept' of school belonging as 'feeling safe to be yourself in and through relationships with others in the school setting'. Superordinate themes identified in the empirical study (Paper 2) were 'making friends and feeling safe'; 'feeling known, understood and accepted as a person in receiver school'; 'identification of and support for SEN/D' and 'supportive/unsupportive school practices/protocols'. Findings indicated that a sense of school belonging for these students resulted from positive social relationships with peers and an attendant sense of safety, security and acceptance. Managed move participants expressed the desirability but also the perceived difficulty of forging relationships in a new school and acknowledged the value of sensitive and subtle support.

This thesis arose from a desire to better understand the structures of automorphism groups and inner automorphism groups of quandles. We compute and give the structure of the automorphism groups of all dihedral quandles. In their paper Matrices and Finite Quandles, Ho and Nelson found all quandles (up to isomorphism) of orders 3, 4, and 5 and determined their automorphism groups. Here we find the automorphism groups of all quandles of orders 6 and 7. There are, up to isomoprhism, 73 quandles of order 6 and 289 quandles of order 7.

This dissertation consists of three essays related to revision games. The first essay proposes and analyzes a new model that we call “revision games,” which captures a situation where players in advance prepare their actions in a game. After the initial preparation, they have some opportunities to revise their actions, which arrive stochastically. Prepared actions are assumed to be mutually observable. We show that players can achieve a certain level of cooperation. The optimal behavior of players can be described by a simple differential equation. The second essay studies a version of revision games in which revision opportunities are asynchronous across players. In 2-player “common interest” games where there exists a best action profile for all players, this best action profile is the only equilibrium outcome of the revision game. In “opposing interest” games which are 2 x 2 games with Pareto-unranked strict Nash equilibria, the equilibrium outcome of the revision game is generically unique and corresponds to one of the stage-game Nash equilibria. Which equilibrium prevails depends on the payoff structure and on the relative frequency of the arrivals of revision opportunities for each of the players. The third essay studies a multi-agent search problem with a deadline: for instance, the situation that arises when a husband and a wife need to find an apartment by September 1. We provide an understanding of the factors that determine the positive search duration in reality. Specifically, we show that the expected search duration does not shrink to zero even in the limit as the search friction vanishes. Additionally, we find that the limit duration increases as more agents are involved, for two reasons: the ascending acceptability effect and the preference heterogeneity effect. The convergence speed is high, suggesting that the mere existence of some search friction is the main driving force of the positive duration in reality. Welfare implications and a number of discussions are provided. Results and proof techniques developed in the first two essays are useful in proving and understanding the results in the third essay. / Economics