Made available in DSpace on 2017-07-21T20:31:45Z (GMT). No. of bitstreams: 1 Adriana Ribeiro Ferreira.pdf: 2612899 bytes, checksum: 43f099f75d2cecc25766a3806b891dca (MD5) Previous issue date: 2004-06-24 / The environment is represented by people in different ways, according to its economical, politic, cultural and historical contexts. In the same way, teachers, in their everyday practice make several representations to work with the theme environment at school. Then, the questioning about the inclusion of environment in some disciplines of the diversified part of the curriculum of the school, the teachers'role in such organization, their representation and practice are the reason that give origin to this research whose objectives were: to Know the social representation of environment of Science and Biology teachers who work with disciplines of the diversified part of the curriculum of the school; to identify the teachers new ideas or actions to environmental educations (EE); to analyze the relation between environment and the practical representation of such teachers. The methodology used to conduct the research was qualitative and the results obtained happened in three moments. The first was about public schools that had in their curriculum in 2003, disciplines of the diversified part related to the areas of Science na Biology. The second was about a semi-structured interview with 15 teachers. The third was about a questionnaire that was answered by other people, tem teachers of Science na Biology, aiming the complement of the interviews. The main results that werw obtained by analyzing the interviews and questionnaires made possible to identify four types of representation about environment. The 1st representation - the surroundings - gives emphasis to the elements that are near, everything that is around the spaces that being used by human beings and that need to be known. The 2nd representation - moralista behaviorist - it's related to the surroundings, but it's associated to the attitudes and behaviors before this environment. The 3rd representation - utilitarist anthropocentric - it says it's the environment that has, to supply the human beings. 4th representation - naturalist - it's related to natural environment, to the aesthetic questions of the environment. The representations associated to the new actions related to environmental education establish six categories: the practical naturalist (to know nature); the instrumental/experimental (to know the environment through the contextualization of the contents); the "vicariante" (to observe the environment, the surroundings to have it close and make it concrete); the moralist pedagogical (to make children conscious to save the environment); the idealist (to make children conscious to change their behavior andactin a way to preserve the environment) and the constructivist (to know environment problems and build knowledge. In a general way it's na evident fact the absence of any aspects of relation about the environment in the teachers' speech. Most of them can't explain the environmental question in relation to the historical, social, cultural, economical and politic aspects. Then, the existence of disciplines in the curriculum of the school related to the environment, don't bring significative constributionss to make the environmental education effective at school. Taking some exceptions into account, it can be said that the creation of such disciplines is more closely related to legal determinations and to some teachers' individual interests than to properly increase the discussion about environment at school. / O meio ambiente (MA) é representado pelas pessoas de diferentes maneiras, em função do seu contexto histórico, cultural, político, econômico. Da mesma forma, professores e professoras, na sua prática cotidiana, expressam diversas representações para trabalhar com o tema MA na escola. Logo, o questionamento a respeito da discussão sobre MA no âmbito das disciplinas da parte diversificada da grade curricular nas escolas da Rede Pública de Ensino, o papel dos professores e professoras nessa organização, as suas representações e a sua prática constituíram as razões que desencadearam esta pesquisa, cujos objetivos foram: conhecer as representações sociais de MA dos professores de Ciências e Biologia que atuam em disciplinas da parte diversificada da grade curricular; identificar as iniciativas dos professores e professoras para a Educação Ambiental (EA); analisar as relações entre as representações de MA e a representação da prática desses professores e professoras. A metodologia utilizada para a pesquisa foi qualitativa e a obtenção dos dados deu-se em três momentos. O primeiro consistiu de um levantamento junto ao Núcleo Regional de Educação de Ponta Grossa, das escolas públicas estaduais que, em sua grade curricular em vigor em 2003, possuíam disciplinas da parte diversificada específicas da área de Ciências e Biologia. O segundo constituiu de entrevista semi-estruturada realizada com 15 professores e professoras. O terceiro constituiu de um questionário respondido por outros sujeitos, dez professores e professoras de Ciências e Biologia, visando à complementação das entrevistas. Os principais resultados obtidos através da análise das entrevistas e questionários permitiram identificar quatro tipos de representações sobre meio ambiente. A 1ª representação - de entorno - dá ênfase aos elementos próximos, tudo aquilo que rodeia os espaços ocupados pelo ser humano e que necessita ser conhecido. A 2ª representação - comportamentalista moralista - relaciona-se também ao entorno, porém associado a atitudes e comportamentos diante desse meio. A 3ª representação - antropocêntrica utilitarista - atribui ao meio ambiente a função primordial de prover os seres humanos. A 4ª representação - naturalista - relaciona-se a ambientes naturalizados, às questões estéticas do meio. As representações associadas às iniciativas para a EA apontam para seis categorias: a naturalista prática (conhecer a natureza pela razão e pelos conhecimentos científicos); a instrumental/experimental (conhecer o meio através da contextualização dos conteúdos); a vicariante (observar o meio e o comportamento do outro); a pedagogizante moralista (conscientizar as crianças para salvar o meio ambiente); a idealista (conscientizar para mudar o comportamento e agir para preservar); e a construtivista (problematizar o meio ambiente e construir o conhecimento). De modo geral, evidencia-se a ausência do aspecto relacional do meio ambiente na fala dos professores e professoras. A grande maioria deles não consegue explicar a questão ambiental em relação aos fatores políticos, econômicos, culturais, sociais e históricos. Assim, a existência de disciplinas da parte diversificada relacionadas a meio ambiente não traz contribuições significativas para a efetivação da EA na escola. Salvo algumas exceções, a criação de tais disciplinas está mais relacionada às determinações legais e interesses individuais de alguns docentes do que propriamente à ampliação da discussão ambiental na escola.

Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2017-07-19T17:30:37Z No. of bitstreams: 1 PedroLeiteNeto.pdf: 15729023 bytes, checksum: 58efe211075c14c50cf9c297aa235d4f (MD5) / Made available in DSpace on 2017-07-19T17:30:37Z (GMT). No. of bitstreams: 1 PedroLeiteNeto.pdf: 15729023 bytes, checksum: 58efe211075c14c50cf9c297aa235d4f (MD5) Previous issue date: 2017-06-02 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / The development of microgrids was driven by the need to supply consumers with more stable and reliable electricity. The intermittent nature of renewable sources differs from the requirements of consumers - especially in isolated areas - who expect an uninterrupted and quality energy supply. Isolated microstrips may have available one or more renewable sources to be explored, configuring hybrid systems. Although such renewable sources are inexhaustible, energy conversion systems are capacity limited and need to be explored efficiently. Hybrid systems typically include solar photovoltaic and wind, already well studied. In this thesis are introduced the oceanic energies in their gradient and tidal currents forms. This thesis contributes to the efficient exploration of the oceanic sources, both as a single source as well as in a hybrid configuration. In relation to the isolated operation, the storage system is of fundamental importance. Considering the high costs of a battery bank over the total cost of the system, operating strategies that preserve its useful life while maintaining uninterrupted power supply are mandatory. Considering these aspects, in this work is proposed a dual energy storage system composed of two subsystems with diversified functions and submitted to different chage/discharge conditions. The purpose of this new strategy is a more efficient use of the storage system, since this operating regime becomes closer to the recommended by the battery manufacturers. The benefits of this strategy are reflected in the overall cost reduction of the microgrid. In order to achieve optimum operating strategies, a more accurate mathematical model of the batteries is used to reproduce the behavior of the batteries in a more realistic way. In addition, it is investigated the performance of operating strategies that allow maximum benefits to be obtained through the diversification of the microgrid energy matrix, by including hydrokinetic tidal sources. The motivation for including this source lies in its high potential, especially on the northern coast of Brazil. These benefits should be evaluated mainly through the more efficient use of the storage system as well as the reduction of the participation of fossil fuel units in the operation of isolated microgrids. / O desenvolvimento das microrredes foi impulsionado pela necessidade de suprir os consumidores com eletricidade de forma mais estável e confiável. A natureza intermitente das fontes renováveis se contrapõe às exigências dos consumidores - especialmente em áreas isoladas - que esperam por um fornecimento de energia sem interrupções e com qualidade. As microrredes isoladas podem ter disponíveis uma ou mais fontes renováveis para serem exploradas, configurando sistemas híbridos. Embora tais fontes renováveis sejam inesgotáveis, os sistemas de conversão de energia são limitados em capacidade e devem ser explorados com eficiência. Sistemas híbridos normalmente incluem energia solar fotovoltaica e eólica, já bastante estudadas. Nesta tese são introduzidas as energias oceânicas nas suas formas de gradiente e de correntes de marés. Esta tese contribui para a exploração eficiente de fontes oceânicas, tanto na operação como fonte única assim como em configuração híbrida. No que tange a operação isolada, o sistema de armazenamento tem importância fundamental. Considerando os elevados custos de um banco de baterias sobre o custo total do sistema, estratégias de operação que preservem sua vida útil, ao mesmo tempo que mantenham o fornecimento ininterrupto de energia, são mandatórias. Diante destes aspectos, neste trabalho é proposto um sistema dual de armazenamento de energia composto de dois subsistemas com funções diversificadas e submetidos a condições de carga/descarga diferentes. O objetivo desta nova estratégia consiste no uso mais eficiente do sistema de armazenamento, uma vez que esse regime de operação se torna mais próximo daquele recomendado pelos fabricantes de baterias. Os benefícios desta estratégia são refletidos na redução dos custos globais da microrrede. Para conseguir as estratégias de operação ótima, neste trabalho é utilizado um modelo matemático mais acurado das baterias a fim de reproduzir de forma mais realista o comportamento das baterias. Além disso, é investigado o desempenho de estratégias de operação que permitam obter o máximo de benefícios decorrentes da diversificação da matriz energética da microrrede, através da inclusão de fontes hidrocinéticas maremotrizes. A motivação para a inclusão desta fonte está no seu elevado potencial, em especial no litoral norte do Brasil. Estes benefícios devem ser avaliados especialmente quanto ao uso mais eficiente do sistema de armazenamento, assim como a redução da necessidade de participação de unidades baseadas em combustível fóssil na operação de microrredes isoladas.

Smart radial distribution grids will include advanced metering infrastructure (AMI) and significant distributed generators (DGs) connected close to loads. DGs in these radial distribution systems (RDS) introduce bidirectional power flows (BPFs) and contribute to fault current. These BPFs may cause unwanted tripping of existing overcurrent (OC) protection devices and result in permanent outages for a large number of customers. This thesis presents a protection approach that modified an existing overcurrent protection scheme to reduce the number of customers affected by faults in RDS with DGs. Further, a technique is presented that utilizes customers loading information from smart meters in AMI to improve the sensitivity of substation OC relays by adaptively changing the pickup settings. The modified protection approach involves predefining zones in RDS with DGs and installing directional OC relays and circuit breakers at the zonal boundaries. Zonal boundary relays determine faulted zones by sharing information on the direction of detected faults current using binary state signals over a communication medium. The technique to adapt the substation relay pickup settings uses the demand measurements from smart meters for two 12-hour intervals from the previous day to determine the maximum diversified demand at the relay?s location. The pickup settings of the substation relay for the two 12-hour intervals during the following day for the zone supplied by the substation are adaptively set based on the current that corresponds to the maximum diversified demand from the previous day. The techniques were validated through simulations in EMTP/PSCAD using an expanded IEEE 34 node radial test feeder that included DGs and a secondary distribution level. By decentralizing the control of the zonal boundary breakers, the single point of failure was eliminated in the modified protection approach. The cases studied showed that the modified protection approach allows for selective identification and isolation of the faulted zones. Also, the sensitivity of the substation OC relay was improved by at least 24% by using the pickup settings for the two 12-hour intervals from the smart meter demand measurements compared to the pickup settings computed using the conventional methodology based on the maximum loading of the zone.

Dans cette thèse, nous nous sommes intéressés au mode d’exploitation de la demande prévisionnelle pour le pilotage des flux amont dans un contexte de production de masse de produits fortement diversifiés et de dispersion géographique des unités de production. Lorsque l’information prévisionnelle est mal exploitée, des phénomènes, similaires à l’effet coup de fouet connu en chaîne logistique aval, apparaissent en chaîne logistique amont altérant durablement sa performance. Dans le but de contrer certains des mécanismes à l’origine de ces phénomènes, nous avons proposé une adaptation de la MRP permettant d’exploiter au mieux l’information prévisionnelle. L’adaptation de la MRP repose sur une méthode de calcul des besoins basée sur l’exploitation statistique des nomenclatures de planification et la diffusion d’informations sur les niveaux de recomplètement le long de la chaîne logistique amont. Cette approche a été testée avec succès sur plusieurs cas d’application dans l’industrie automobile / In this PhD dissertation, we investigated the way of exploiting the demand forecasts for the upstream flow management in a context of mass production of highly diverse products and of geographical dispersion of the production units. When the forecasts are poorly exploited, phenomena similar to the well-known bullwhip effect in the downstream supply chain appear in the upstream supply chain altering permanently its performances. In order to counter some of the mechanisms underlying these phenomena, we proposed an adaptation of the MRP to perform the exploitation of the forecasted demand. The adaptation of the MRP is based on a calculation method that uses the planning BOM for calculating and transmitting replenishment levels along the upstream supply chain. This approach has been successfully tested on several application studies in the automotive industry

Bakgrund: Managementkoncept, som till exempel lean, behöver anpassas för att passa en viss organisations unika förutsättningar. Översättningsteori är ett medel för anpassning av managementkoncept mellan olika kontexter men i forskningen är det främst översättning till en kontext som har undersökts. Vad som händer om organisationen i fråga är diversifierad är i stort förbisett i forskningen. Det är därmed intressant att undersöka hur diversifiering påverkar översättningen och om det kan vara en anledning till att många implementationer, och översättningar, av managementkoncept misslyckas. Syfte: Syftet med studien är att öka förståelsen för översättning vid implementeringen av lean i en tjänsteorganisation med diversifierad verksamhet. För att uppnå studiens syfte har vi studerat vilken översättningskompetens som i organisationen upplevs vara av vikt vid implementeringen av lean i en diversifierad tjänsteorganisation och hur kompetensen anpassas till de olika enheternas kontexter. Vidare har vilka översättningtyper som används vid implementeringen av lean i en diversifierad tjänsteorganisation och hur de anpassas till enheternas olika kontexter studerats.  Metod: Studien är en kvalitativ fallstudie med ett fenomenologiskt perspektiv med hermeneutisk tyngdpunkt. Det empiriska materialet samlades in genom semistrukturerade intervjuer vilka kompletterades med dokumentstudier. Materialet presenteras tematiskt och narrativt. Slutsats: Diversifiering behöver inte nödvändigtvis innebära problem för översättningen om översättningstyp och översättningskompetens är behovsstyrt. Däremot behöver hänsyn tas till tvärgående processer, vilka behöver ett helhetsfokus och en samstämmighet i hur lean används för att fungera kunddrivet och optimalt. / Background: Management concepts, such as lean, need adjustment to fit the unique circumstances of a certain organisation. Translation is a method of adapting management concepts between different contexts but research on the subject has mainly focused on the translation to a single context. The implications that diversification has for the translation to a certain organisation are largely overlooked. It is therefore relevant to study how diversification affects translation and if it can be a reason for the large number of failures in the implementation, and translation, of management concepts. Purpose: The purpose of this study is to increase the understanding of the translation that takes place when a diversified service organisation implements lean. To fulfill the purpose we have studied what translation competence that is experienced to be important in the organisation when lean is implemented in a diversified service organisation and how the competence is adapted to the different contexts within the organisation. Furthermore, we have studied which translation types that are used when lean is implemented and how they are adapted to the different contexts of a diversified service organisation. Method: This is a qualitative case study with phenomenological perspective that puts emphasis on hermeneutic context. Semi-structured interviews and document studies provided the empirical material for the study. The empirical material is presented in themes in a narrative way. Conclusion: Diversification per se does not have to imply any difficulties if the translation, in terms of translation type and -competence, is controlled by demand. Transverse processes on the other hand needs to be focused and a holistic approach and a consistency in how lean is used and applied is necessary to make them work in an optimal and customer driven way.

Made available in DSpace on 2014-08-20T14:33:08Z (GMT). No. of bitstreams: 1 dissertacao_rosemeri_olanda.pdf: 474088 bytes, checksum: b3ca7e189d033a5e523ce3ee94f5349e (MD5) Previous issue date: 2009-03-26 / The objective of this work was to evaluate the incorporate of arrow leaf clover cv. Yuchi for seed production in Nesting Novo Arroio Grande, Arroio Grande (RS) and the other benefits of the presence of this legume specie in agricultural and pasture system. This work was realized in seven production units where were identified three systems: beef cattle production, dairy cattle production and both. Were installed seven areas for seed production with approximately 0.25 ha. The forage production and quality were determined from cuts made in three replicates of 1.0m2 being quantified: the content and yield of dry matter, crude protein and in vitro digestibility. Phenological evaluations were made during the crop cycle and from the date of sowing these events were determined: first and sixth trifoliolade leaf, first branch, flowering start and full, and seed maturation. The yield components were evaluated such as number of plants for area, number of inflorescence for plant, number of inflorescence for area and thousand seed weight. Analysis of simple linear correlation were made between: the different yield components with seed production; the quantity of phosphor applied with yield seed, crude protein and dry matter production. The clover seed production including soil seed bank showed yield of 636 kg.ha-1 which creates an increase of 97% in the gain and showing as an alternative for nesting productions units. The forage production with high quality presents capability to change the reality of the production in agro-pastoral systems. Key Words: seed production, Trifolium vesiculosum, production systems, settlement, agrarian reform, diversified production. / O objetivo do trabalho foi avaliar a incorporação do trevo vesiculoso cv. Yuchi para produção de sementes no Assentamento Novo Arroio Grande, em Arroio Grande (RS), bem como os demais benefícios da presença desta leguminosa no sistema agropastoril. O trabalho foi realizado em sete unidades de produção, onde foram identificados três sistemas: produção de gado de corte, produção de gado de leite e misto. Foram instaladas sete áreas para produção de sementes com aproximadamente 0,25ha. A produção e a qualidade da forragem foram determinadas a partir de cortes realizados em três repetições de 1,0 m2 sendo quantificados: teor e rendimento de matéria seca, proteína bruta e digestibilidade in vitro. Avaliações fenológicas foram realizadas durante o ciclo do cultivo determinando-se a partir da data de semeadura os seguintes eventos: emergência, primeira folha trifoliolada, sexta folha trifoliolada, primeira ramificação, início e plena floração e colheita de sementes. Os componentes de rendimento avaliados foram: número de plantas por área; número de inflorescências por planta e por área e peso de mil sementes. Foram realizadas análises de correlação linear simples entre os diferentes componentes de rendimento com a produção de sementes; entre a quantidade de fósforo aplicado com o rendimento de sementes, a proteína bruta e a produção de massa seca. A produção de semente de trevo vesiculoso incluindo o banco de sementes no solo alcançou rendimento de 636 kg.ha-1, o que gerou incremento de renda de 97%, configurando-se como uma alternativa para unidades de produção de assentamentos; a produção de forragem com elevada qualidade apresenta potencialidade para alterar a realidade da produção dos sistemas agropastoris.

本研究利用元大台灣50 ETF作為樣本資料，檢測2006年至2016年實證期間風險基礎指數和市值加權指數所分別建構的投資組合，其績效表現、風險表現、分散性表現的優劣性；其中Choueifaty, Froidure, and Reynier (2011) 所建構的最佳風險分散投資組合 (most diversified portfolio) 為近年來新起的風險基礎指數投資組合，我們將證實在獲得良好的投資組合分散性同時，如同其他的風險基礎指數投資組合的目標，同時也能獲得超越以追蹤市值加權指數為標的的投資組合績效。 本研究以夏普比率、信息比率、阿爾法作為衡量績效的指標；以標準差、貝他作為風險衡量的指摽；另以Choueifaty and Coignard (2008) 提出的分散性比率作為分散性衡量的指標。實證結果顯示，在整體實證期間，最佳風險分散投資組合在績效、風險、分散性的指標上皆有超越市值加權指數投資組合的能力，再以年為單位的個別期間，其績效衡量上大致優於市值加權指數投資組合，風險和分散性衡量上則優於市值加權指數投資組合的表現，但論以其整體表現，並非為本研究所提出的風險基礎指數投資組合中最佳者，因此投資人在選擇該類投資組合策略時，建議從該投資組合過去表現中判斷，選擇符合自己投資習慣者為之。 / This article examines the performance, risks and diversification of different types of portfolio strategies such as risk-based indexes and cap-weighted index during 2006- 2016. We introduce the recent most diversified portfolio (MDP), which was proposed by Choueifaty, Froidure, and Reynier (2011) and find the result that like the goal of other risk-based portfolios, which is to improve the risk-return profile of cap-weighted portfolio, MDP surpasses overall performance, risks and diversification compared to cap-weighted portfolio while achieving diversification. We use Sharpe ratio, information ratio and alpha as the performance indicators, use standard deviation, beta as the risk indicators, and adopt diversification ratio (DR), which was proposed by Choueifaty and Coignard (2008), as the diversification indicator in our analysis. The results of this study show that MDP surpasses overall performance, risks and diversification compared to cap-weighted portfolio in the full empirical period. In addition, MDP is generally superior to cap-weighted portfolios in terms of performance in many single years of the whole period, and completely beat cap-weighted portfolios in terms of risks and diversification in every single year of the whole period. Although the ability of exceeding cap-weighted portfolio, MDP do not win first place of mentioned risk-based portfolios in our research. As a result, we suggest investors choose their portfolio strategies refer to its past performance, risks and diversification, and select the best according to their investment preference.

Made available in DSpace on 2017-07-21T14:54:08Z (GMT). No. of bitstreams: 1 Silvia Medeiros Rodrigues.pdf: 1467250 bytes, checksum: 4c4c71bef6c722b011a564a17ac16e55 (MD5) Previous issue date: 2014-07-15 / This Masters dissertation had as its main aim to analyze some speech acts of teachers working with elementary school 5th and 6th years, more specifically those regarding the school practice of writing, besides seeking to create moments of reflection of these professionals on diversified linguistic practices, so that they can think about the theoretical and practical knowledge that permeates the teaching practice. This proposal was not born by chance; it originated from informal conversations with public school teachers, due to the researcher experience of over 20 years working with the early years of elementary school. Some authors have insisted on pointing out the extent to which the discussion about teaching writing and the homogenizing linguistic policies influence school. Among these are: FARACO (2007, 2008); BRITTO (1997, 2002, 2003, 2007 and 2009), PINTO (2012, 2014) and (RAJAGOPALAN 2003, 2004, 2011 and 2013). It was, therefore, observed how teachers working with the early and final years of elementary school, without any access to the language science research, develop teaching practices based on the reproduction of structures. Also, an issue to be taken into consideration is the lack of research on the transition between the 5th and 6th years of elementary school. In order to achieve that, such discussions had to be broadened in the school context. The methodology, based on qualitative research was the most suitable to this study with the development of action-research (THIOLLENT, 2009). Initially, interviews were carried out with teachers from a municipal school and some from a state school, and from the most relevant issues raised by the interviews a group of studies was organized. Later on, observation was carried out in these participants‟ classrooms. The data analysis revealed that the participants had no access to most of the knowledge discussed in the group of studies. As a result, it was possible to see that without knowing more deeply the discussions about language in general/mother tongue it is not possible to reflect on linguistic practices and, consequently, teaching practices. Finally, the conclusion highlighted that when the participants had access to the material collected during the interview, the group of studies and the observations, they developed a process of rethinking the way their work is conducted in the classroom, that is, when they looked into their own work they observed the necessity to organize it with other objectives, so that it can be improved and, consequently, improve their own students‟ actions. The participants also pointed out how difficult it is for them to know how to develop some differentiated work in the classroom. It was also possible to think about alternatives for the participant teachers to establish discussion networks to try and reevaluate heterogeneous linguistic practices, through permanent teacher development. / Esta dissertação de mestrado tem por objetivo principal analisar alguns atos de fala dos professores de 5º e 6º ano do ensino fundamental, especificamente as que versam sobre práticas escolares de escrita, além de buscar proporcionar momentos de ação reflexiva com eles sobre as práticas linguísticas diversificadas, no sentido de pensarem sobre o conhecimento teórico e prático que permeia a prática pedagógica. Essa proposta não foi uma escolha eventual, nasceu de conversas informais com professores da escola pública, tendo em vista os mais de 20 anos de trabalho com o Ensino Fundamental I. Vários autores vêm insistindo em mostrar o quanto a discussão sobre o ensino de escrita e as políticas linguísticas homogeneizadoras influenciam a escola. Entre eles: FARACO (2007, 2008); BRITTO (1997, 2002, 2003, 2007 e 2009), PINTO (2012,2014) e RAJAGOPALAN ( 2003, 2004, 2011 e 2013). Dessa maneira, foi observado como os professores dos anos iniciais e finais do Ensino Fundamental, sem acesso às pesquisas das ciências da linguagem, cultuam práticas pedagógicas centradas em torno da reprodução de estruturas. Também há que se pensar no vácuo de pesquisas que versam sobre a transição entre o 5º e o 6º ano do Ensino Fundamental. Para tanto, houve a necessidade de ampliar tais discussões no contexto escolar. Como metodologia, a pesquisa qualitativa foi a que melhor orientou o trabalho, tendo como base a pesquisa-ação (THIOLLENT, 2009). Inicialmente, foram feitas entrevistas com as professoras de uma escola municipal e uma escola estadual para, a partir das questões mais relevantes levantadas na entrevista, organizar um grupo de estudos. Posteriormente, foram realizadas observações nas salas de aula dessas participantes. Por meio da análise dos dados foi possível perceber que as participantes não tinham acesso a muitos conhecimentos discutidos no grupo de estudos. Como resultados, pode-se observar que sem se conhecer mais detalhadamente as discussões sobre língua/linguagem não é possível refletir sobre as práticas linguísticas e, consequentemente, as práticas pedagógicas. Por fim, a conclusão evidenciou que quando as participantes tiveram acesso ao material coletado durante a entrevista, o grupo de estudos e as observações houve um repensar por parte delas sobre a condução de seu trabalho em sala de aula, ou seja, observaram que há a necessidade de organizá-lo com outros objetivos, a fim de que ele possa ser melhorado e, consequentemente, melhore a ação dos próprios alunos. As professoras também apontaram com relevância a dificuldade que elas têm em saber como fazer um trabalho diferenciado em sala de aula. Da mesma forma, pudemos pensar em caminhos para que as professoras participantes pudessem, a partir da formação continuada permanente, estabelecer redes de conversas para tentar reavaliar práticas linguísticas heterogêneas.

This thesis examined the institutionalisation of ethics within Australian organisations. A particular focus is the role of the strategic apex, or executive level of the organisation, in establishing the environment in which an ethical culture can develop. The literature review examined both organisational theory and existing approaches to developing organisational ethical culture using formal mechanisms such as written policies, procedures, training and development and reinforcement strategies. This revealed the polarisation of ethics literature between compliance and integrity based approaches. This is seen to be consistent with only two forms of organizations, the mechanistic and organic structures. This was identified as a major flaw in ethics literature as it does not inform organisations about appropriate ethical design for organisations that fall in between this continuum. The review of organisational theory concluded that components of organisational structure are used to discuss organisational moral responsibility and are also the components of the compliance and integrity approaches to organisational ethics. A tentative hypothesis was established that organisational ethics systems would be more effective if they are in fit with an organisation's structure. The study utilised a qualitative case based research method, argued as appropriate given the focus being strategic alignment of organisational structure and ethics frameworks. Thus was also recognised as having limitations, specifically not addressing the behavioural impact of such strategies in a significant way. The study examined the ethical frameworks of three large organisations. This included: an analysis of background to the ethics strategy, the design process, who was given responsibility for design and implementation of the framework. The major characteristics of the program was considered, how it was encultured throughout the organisation and consideration of any evaluation mechanism. This was contrasted against the organization's structural characteristics to establish whether the ethical framework was in fit with the structure of the organization. The analysis and discussion identified that senior management support was evident in all three case studies and crucial to the development of an ethical culture. Extensive written policies (codes of ethics and conduct) were identified in all three cases; however, the extent of appropriate support systems determined the degree to which these policies were effective. There was a general lack of understanding of ethical systems within the organisation with little expertise evident by those responsible for the programs in terms of appropriate strategies for enculturation. Ineffective strategies were mainly due to lack of appropriate support mechanisms (communication, training, reinforcement and reward and review) or inconsistency between support mechanisms and other organisational policies A major conclusion of the thesis is that the strategies used for enculturation of ethics, are basic organisational design variables. As such ethical frameworks need to be informed by organisational theory so as to design systems that achieve fit which leads to greater effectiveness.

L'ulcère de Buruli est une maladie nécrosante de la peau et des tissus mous accompagnée d'ulcères de grandes tailles, causée par une mycobactérie. L’Organisation Mondiale de la Santé a lancé en 1998 une initiative mondiale contre cette maladie tropicale négligée, présente notamment en Afrique et en Australie. L'infection est causée par Mycobacterium ulcerans, mycobactérie faisant partie de la même famille que les mycobactéries responsables de la tuberculose et de la lèpre. Mycobacterium ulcerans sécrète une toxine nommée mycolactone, responsable de cette infection. Cette toxine a des propriétés cytotoxiques et immunosuppressives. Le projet de recherche développé dans l'équipe concerne la synthèse et l'évaluation biologique des mycolactones A et B et de leurs analogues. A l'heure actuelle, la première étude relation structure-activité conduisant à une meilleure compréhension du mode d'action des mycolactones a été établie. La stratégie de synthèse choisie implique plusieurs réactions de couplage catalysées par des métaux (fer, cuivre, palladium) pour la création de liaisons carbone-carbone. La stéréochimie des sept alcools secondaires a quant à elle été contrôlée par des réactions d'allyl-et crotylboration asymétrique ainsi que par des réactions de dihydroxylation catalytique et asymétrique. Au cours de ce travail de thèse, 12 analogues ont ainsi été obtenus en appliquant cette voie de synthèse. / Buruli ulcer, a severe necrotizing skin disease caused by Mycobacterium ulcerans, is one of the most neglected tropical diseases. The World Health Organization has started in 1998 a Global Initiative against this disease. The pathogen belongs to the same family as the mycobacteria responsible for tuberculosis and leprosy and 6000 new cases are registered each year. Infection leads to extensive destruction of the skin and soft tissues with the formation of large ulcers usually on the legs or the arms and can caver up 15% of the skin surface. These effects are due to the presence of the bacterial toxins mycolactones, secreted by M ulcerans. Mycolactones are the first polyketides isolated from a human pathogen. Deciphering their functional interactions is of fundamental importance for the understanding and ultimately the control of this devastating mycobacterial infection. A Diverted Total Synthesis approach of mycolactones analogues has been developed and provides the first insights into their structure-activity relationship based on cytopathic assays on L929 fibroblasts.