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Zavarizi, Indio Jorge. "ICM e a federação." reponame:Repositório Institucional da UFSC, 2013. https://repositorio.ufsc.br/handle/123456789/106054.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Florianópolis, 1978.Made available in DSpace on 2013-12-05T19:01:17Z (GMT). No. of bitstreams: 1 321150.pdf: 2523157 bytes, checksum: 43163964dffdbb08f3d1974e3b4fa0a1 (MD5)
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Van, Metzinger Willem Antonie. "Business plan for ICM (Pty) Ltd." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/49719.
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Thesis (MBA)--Stellenbosch University, 2002.ENGLISH ABSTRACT: This business plan is a document focussing on creating a business which truly embrace the "New Economy", and by using technology, crafting a strategy which can ensure that the company become successful, and a market leader in the field of civil engineering. The plan focuses on two separate entities. Firstly, building a business by using current techniques in evaluating the industry, developing an initial strategy, and setting the tone for crafting a strategy in the future which will fulfil the goals and objectives of the company, thereby reaching it's initial vision. It use a combination of analysis, creativity, and learning to develop a market leader which has the main focus of being innovative, serving it's clients with service quality, becoming the leader in it's field. A key success factor interaction diagram was developed and combined with an industry value chain to change the operational process into a new market orientated process enabling the company to achieve it's goals. Secondly, the focus is to create wealth for its stakeholders. In that regard the current system in the engineering industry was challenged. New operational processes were developed which is in line with the company vision and mission. These processes was correlated with the financial structure and projections made to ensure that the crafting of the strategy will be done in a systematic way, but always focussing on the goals and objectives of the company. Finally, an implementation plan is developed which is a crucial action plan to ensure success in the future.
AFRIKAANSE OPSOMMING: Die doelwit van hierdie besigheidsplan is om die basis te lê om 'n suksesvolle markleier in die siviele ingenieurs bedryf te word. Dit is gebaseer op die beginsels van die "Nuwe Ekonomie". Tesame met daardie beginsels word tegnologie gebruik om 'n strategie te ontwikkel en te vorm soos wat die maatskappy groei. Die plan fokus op twee hoofdele. Eerstens, om 'n maatkappy van statuur te ontwikkel. Huidige analitiese tegnieke om die industrie te evalueer is gebruik om 'n basis strategie te ontwikkel. Hierdie basis strategie sal dan uitgebrei word soos wat die maatskappy ontwikkel deur te fokus op sy doelwitte en sy visie. Deur analise, kreatiwiteit en kundigheid te kombineer word gepoog om te fokus op innovering en kwaliteit wat die kwaliteite is wat benodig word om 'n mark leier te word. 'n Sleutel sukses faktor interaksie diagram is ontwikkel wat tesame met 'n industrie waarde ketting gebruik is om die huidige operasionele prosesse te verander in nuwe mark gerigte prosesse. Die stelsel is die fondasie wat gelê word om die maatskappy doelwitte te bereik. Tweedens, word daar gefokus om rykdom te skep vir die aandeelhouers asook die maatskappye wat deel vorm van die lCM netwerk. Die huidige stelsels in die industrie was ge-evalueer en afgebreek totdat nuwe stelsels ontwikkel is wat inpas in die visie en missie van die maatskappy. Dit is gekorreleer met 'n finansiële model en inkomste en uitgawe projeksies vir die toekoms. Die projeksies is gebaseer op 'n geleidelike ontwikkeling van die stelsels totdat daar na drie jaar 'n gevestigde wereldklas stelsel in plek is. Laastens word afgesluit met 'n aksie-plan wat noodsaaklik is vir effektiewe implimentering van die besigheidsplan.
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Simionescu, Aurora. "AGN-ICM interaction in nearby cool core clusters." Diss., lmu, 2009. http://nbn-resolving.de/urn:nbn:de:bvb:19-102134.
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El, Ghouat Mohamed Abdelwafi. "Classification markovienne pyramidale adaptation de l'algorithme ICM aux images de télédétection." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq26379.pdf.
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Vieira, Pedro Ronalt. "Desenvolvimento de classificadores de máxima verossimilhança e ICM para imagens SAR." Instituto Nacional de Pesquisas Espaciais (INPE), 1996. http://urlib.net/sid.inpe.br/iris@1912/2005/07.20.06.47.40.
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Este trabalho tem como objetivo implementar, testar e aplicar um classificador de Máxima Verossimilhança Pontual (MAXVER) e um classificador contextual Markoviano amigável, que utilizam as distribuições mais apropriadas para dados de radares de abertura sintética (SAR). São apresentadas as principais distribuições para os dados SAR e como várias dessas distribuições surgem através do modelo multiplicativo. Para atingir o objetivo proposto e possibilitar aplicações futuras da metodologia desenvolvida, as implementações foram efetuadas na forma de um Sistema Integrado para Processamento, Classificação e Análise de Dados SAR, com uma estrutura que permite a incorporação de outros modelos e técnicas. O sistema desenvolvido baseia-se nas propriedades estatísticas dos dados e, além das funções básicas necessárias para a classificação, possibilita a determinação de estatísticas básicas das radiometrias das classes, a realização do teste Qui-quadrado de aderência para a escolha das distribuições que mais se ajustam a essas radiometrias, a classificação propriamente dita e a avaliação dos resultados com o coeficiente de concordância Kappa para matrizes de confusão. O classificador contextual implementado e o algoritmo das Modas Condicionais Iterativas (ICM), cuja formulação para estimação do parâmetro foi desenvolvida para as vizinhanças de oito e doze coordenadas. Testes foram realizados na discriminação de três classes em imagens SAR-580 e JERS-1 com diferentes números de visadas. A análise dos resultados indica que o uso das distribuições que mais se ajustam às classes leva a classificações de qualidade superior, quando comparadas às obtidas com uso do método clássico, que utiliza a distribuição Gaussiana para os dados. Outra conclusão importante é que o algoritmo ICM apresenta, sob qualquer hipótese para as radiometrias, resultados sempre superiores aos obtidos com a classificação MAXVER. As classificações obtidas pelo primeiro são, em média, mais de duas vezes melhores do que as obtidas pelo método pontual quando comparadas através da estatística Kappa. O uso do algoritmo ICM permite, portanto, obter bons resultados na discriminação de classes como floresta primária, regeneração e desmatamento em áreas de floresta tropical, como é o caso das imagens JERS-1 utilizadas. O sistema desenvolvido possui também algumas operações auxiliares à tarefa de classificação de imagens em geral (modificação e edição da tabela de cores, equalização do histograma, gerenciamento de amostras, decorrelação de observações, operações aritméticas, etc.) e de imagens SAR em particular (filtros redutores de "speckle", estimação do número equivalente de visadas, seleção do tipo de imagem e de modelagem, etc.).The purpose of this study is to implement, test and apply a Maximurn Likelihood Classifier (MLC) and a userfriendly contextual Markovian classifier, which use the distributions most appropriate to the Synthethic Aperture Radar (SAR) data. This study presents the main distributions to the SAR data and how several of these distributions arise from the multiplicative model. In order to achieve the proposed aim and to allow future applications of the developed methodology, the implementations have been done in a integrated system for SAR data processing, classification and analysis, with a structure which allows the addition of other models and techniques. The developed system is based on the statistical properties of the data and, besides the necessary functions for the classification, it also allows the determination of the basic statistics of the classes' radiometries, the Chi-Square goodness-of-fit test in order to choose the most suitable distributions for these radiometries, the classification itself, and the evaluation of the results with the Kappa coefficient of agreement for the error matrices. The implemented contextual classifier is the Iterated Conditional Modes (ICM) algorithm. Its formulation for the parameter estimation was done for 8- and 12-coordinate neighborhoods. Tests have been done for the discrimination of three classes in SAR-580 and JERS-l images with different numbers of looks. The analysis of the results indicates that a more precise classification is achieved by using the distributions which are the most suitable for the classes, when compared to those obtained through the classic method that uses Gaussian distributions. Another conclusion is that the ICM algorithm presents results which are always superior to those obtained through the MLC classification, whichever distributions these radiometries may have. The classifications obtained from the ICM have Kappa values that are usually twice than those obtained with the MLC method. Therefore, when using the ICM algorithm, it is possible to achieve good results in the discrimination of classes such as primary forest, regeneration, and deforestation in rainforest areas, as it is the case of the JERS-l images used in this study. The developed system has also some operations which assist the classification of images in general (color table modification and edition, histogram equalization, sample manipulation, decorrelation of observations, arithmetical operations, etc.), and other operations specific for SAR images (speckle filtering, equivalent number of looks estimation, selection of image type and modelling, etc.).
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El, Ghouat Mohamed Abdelwafi. "Classification markovienne pyramidale : adaptation de l'algorithme ICM aux images de télédétection." Sherbrooke : Université de Sherbrooke, 1997.
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Soares, Evanway Sellberg. "Religião e transformação de valor na sexualidade : ICM - uma igreja militante /." Marília, 2019. http://hdl.handle.net/11449/183654.
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Orientador: José Geraldo Alberto Bertoncini PokerBanca: Marcelo Tavares Natividade
Banca: Aluísio Almeida Schumacher
Resumo: Esse trabalho surge com o objetivo de compreender as possíveis causas da mudança no discurso cristão evangélico com relação à sexualidade e às práticas sexuais; tendo como hipóteses que ela poderia ocorrer pela atuação de um líder carismático ou pela racionalização provocada por uma mudança de fundamento da ação, que poderia ser a mudança da ação tradicional para uma ação racional com relação a fins ou racional com relação a valores. Ainda, buscou-se identificar a pertinência da Teoria do Reconhecimento para a análise de processos de mudança social. Para tal, utilizou-se pesquisa qualitativa na Igreja da Comunidade Metropolitana da cidade de São Paulo, com observação de cultos e eventos, pesquisa documental nos sites da denominação, coleta de entrevistas concedidas pela liderança e vídeos na internet. Como fundamento teórico-metodológico utilizou-se uma reconstrução da Teoria do Reconhecimento Social de Axel Honneth, buscando suas origens na Teoria da Racionalização de Weber, e passando pelo que se pode denominar gramática moral de Habermas. Ao final da pesquisa percebeu-se que a transformação do discurso religioso na denominação estudada se dá pela mudança de uma ação tradicional em direção a uma ação racional com relação a valores, indicador de uma racionalização cultural na sociedade contemporânea e, mais especificamente, de uma racionalização da fé. Também evidenciou-se que a Teoria do Reconhecimento Social é pertinente para a análise de processos de transformação social.
Abstract: This work emerges with the aim of understanding the possible causes of change in the evangelical christian discourse regarding sexuality and sexual practices; having as hypotheses that the change could occur by an action from a charismatic leader or by the rationalization provoked by a shift of action's grounds, which in this case could be the change of the traditional action for an action that would be or a rationally purposeful action or a value rational action. Furthermore, it was sought to identify the efficacy of the Theory of Recognition for the analysis of social change's process. For this purpose, qualitative research was used in the Metropolitan Community Church of São Paulo city, with observation of cults and events, documentary research on the sites of the denomination, collection of interviews granted by the leadership and videos on the Internet. As a theoretical-methodological bases, a reconstruction of the theory of social recognition of Axel Honneth was carried out, seeking its origins in the theory of rationalization of Weber, and passing through a called moral grammar of Habermas. At the end of the research it was perceived that the transformation of the religious discourse in the denomination studied was due to the change from a traditional action to a value rational action, which indicates a cultural rationalization in contemporary society and, more specifically, a rationalization of faith. It was also evidenced that the theory of social recognition is effe... (Complete abstract click electronic access below)
Mestre
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Zhuravleva, Irina. "Radiative transfer in hot gas of galaxy clusters: constraints on ICM turbulence." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-136270.
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Pinijphon, Ponsopa. "An ICM approach to the assessment of a medical ethics intervention in Thailand." Thesis, [Tuscaloosa, Ala. : University of Alabama Libraries], 2009. http://purl.lib.ua.edu/96.
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Peri, Deepthi. "Applying Natural Language Processing and Deep Learning Techniques for Raga Recognition in Indian Classical Music." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99967.
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In Indian Classical Music (ICM), the Raga is a musical piece's melodic framework. It encompasses the characteristics of a scale, a mode, and a tune, with none of them fully describing it, rendering the Raga a unique concept in ICM. The Raga provides musicians with a melodic fabric, within which all compositions and improvisations must take place. Identifying and categorizing the Raga is challenging due to its dynamism and complex structure as well as the polyphonic nature of ICM. Hence, Raga recognition—identify the constituent Raga in an audio file—has become an important problem in music informatics with several known prior approaches. Advancing the state of the art in Raga recognition paves the way to improving other Music Information Retrieval tasks in ICM, including transcribing notes automatically, recommending music, and organizing large databases.
This thesis presents a novel melodic pattern-based approach to recognizing Ragas by representing this task as a document classification problem, solved by applying a deep learning technique. A digital audio excerpt is hierarchically processed and split into subsequences and gamaka sequences to mimic a textual document structure, so our model can learn the resulting tonal and temporal sequence patterns using a Recurrent Neural Network. Although training and testing on these smaller sequences, we predict the Raga for the entire audio excerpt, with the accuracy of 90.3% for the Carnatic Music Dataset and 95.6% for the Hindustani Music Dataset, thus outperforming prior approaches in Raga recognition.Master of Science
In Indian Classical Music (ICM), the Raga is a musical piece's melodic framework. The Raga is a unique concept in ICM, not fully described by any of the fundamental concepts of Western classical music. The Raga provides musicians with a melodic fabric, within which all compositions and improvisations must take place. Raga recognition refers to identifying the constituent Raga in an audio file, a challenging and important problem with several known prior approaches and applications in Music Information Retrieval. This thesis presents a novel approach to recognizing Ragas by representing this task as a document classification problem, solved by applying a deep learning technique. A digital audio excerpt is processed into a textual document structure, from which the constituent Raga is learned. Based on the evaluation with third-party datasets, our recognition approach achieves high accuracy, thus outperforming prior approaches.
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Biffi, Veronica. "Studying the ICM velocity structure within galaxy clusters with simulations and X-ray observations." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-143375.
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Souza, Kamille LeÃo de. "A ExpansÃo das Commodities e a Suposta DesindustrializaÃÃo na RegiÃo Nordeste do Brasil no PerÃodo 1991-2012." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11023.
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nÃo hÃNos dias atuais, à tema dos principais debates a desindustrializaÃÃo em curso nas economias que ainda nÃo atingiram alta renda per capita.VÃrios estudos foram realizados no Brasil sobre o assunto, mas a regiÃo Nordeste ainda carece de anÃlises nessa Ãrea. A hipÃtese central deste estudo à verificar se a economia nordestina se desindustrializou no perÃodo 1991-2012, com o crescimento contÃnuo de commodities na pauta de exportaÃÃes, aliado à maior participaÃÃo de produtos de conteÃdo tecnolÃgico mais relevante na pauta de importaÃÃes. A anÃlise foi realizada fazendo uso de dados da balanÃa comercial, exportaÃÃo e importaÃÃo, registrando a participaÃÃo das commodities e dos produtos industriais segundo a classificaÃÃo adotada pelo MDIC e OCDE (Alta, mÃdia-alta, mÃdia-baixa, baixa intensidade tecnolÃgica e produtos nÃo industrializados), do valor agregado pela indÃstria, pela participaÃÃo do emprego industrial no total e a renda (PIB). Para tal fim, foram calculados indicadores do comÃrcio exterior (Ãndice de ConcentraÃÃo das ExportaÃÃes-ICX, Ãndice de ConcentraÃÃo das ImportaÃÃes-ICM, Ãndice de Vantagem Comparativa Revelada em relaÃÃo ao saldo comercial-VCR, Taxa simples de Cobertura das importaÃÃes-TC e o Ãndice de ComÃrcio IntraindÃstria- CII) e regredido um modelo economÃtrico para verificar vestÃgios de desindustrializaÃÃo concernente à produÃÃo industrial. Os resultados indicam que a pauta de exportaÃÃo nordestina passa por uma reprimarizaÃÃo, que associada à maior presenÃa de produtos industriais com maior conteÃdo tecnolÃgico nas importaÃÃes apresenta sinais de desindustrializaÃÃo. NÃo à possÃvel concluir, no entanto, que a economia nordestina padeÃa da doenÃa holandesa, pois, na anÃlise do emprego industrial e do valor adicionado pela indÃstria no total da economia, nÃo apareceram sinais de perda de importÃncia do setor industrial no total, resultados esses corroborados pelo modelo economÃtrico regredido. Alguns segmentos industriais (tÃxtil, vestuÃrio e acessÃrios, mÃquinas, aparelhos e materiais elÃtricos) expressam, contudo, uma tendÃncia decrescente na evoluÃÃo do Ãndice de produÃÃo fÃsica industrial, o que pode indicar perda relativa desses ramos especificamente.
Nos dias atuais, à tema dos principais debates a desindustrializaÃÃo em curso nas economias que ainda nÃo atingiram alta renda per capita.VÃrios estudos foram realizados no Brasil sobre o assunto, mas a regiÃo Nordeste ainda carece de anÃlises nessa Ãrea. A hipÃtese central deste estudo à verificar se a economia nordestina se desindustrializou no perÃodo 1991-2012, com o crescimento contÃnuo de commodities na pauta de exportaÃÃes, aliado à maior participaÃÃo de produtos de conteÃdo tecnolÃgico mais relevante na pauta de importaÃÃes. A anÃlise foi realizada fazendo uso de dados da balanÃa comercial, exportaÃÃo e importaÃÃo, registrando a participaÃÃo das commodities e dos produtos industriais segundo a classificaÃÃo adotada pelo MDIC e OCDE (Alta, mÃdia-alta, mÃdia-baixa, baixa intensidade tecnolÃgica e produtos nÃo industrializados), do valor agregado pela indÃstria, pela participaÃÃo do emprego industrial no total e a renda (PIB). Para tal fim, foram calculados indicadores do comÃrcio exterior (Ãndice de ConcentraÃÃo das ExportaÃÃes-ICX, Ãndice de ConcentraÃÃo das ImportaÃÃes-ICM, Ãndice de Vantagem Comparativa Revelada em relaÃÃo ao saldo comercial-VCR, Taxa simples de Cobertura das importaÃÃes-TC e o Ãndice de ComÃrcio IntraindÃstria- CII) e regredido um modelo economÃtrico para verificar vestÃgios de desindustrializaÃÃo concernente à produÃÃo industrial. Os resultados indicam que a pauta de exportaÃÃo nordestina passa por uma reprimarizaÃÃo, que associada à maior presenÃa de produtos industriais com maior conteÃdo tecnolÃgico nas importaÃÃes apresenta sinais de desindustrializaÃÃo. NÃo à possÃvel concluir, no entanto, que a economia nordestina padeÃa da doenÃa holandesa, pois, na anÃlise do emprego industrial e do valor adicionado pela indÃstria no total da economia, nÃo apareceram sinais de perda de importÃncia do setor industrial no total, resultados esses corroborados pelo modelo economÃtrico regredido. Alguns segmentos industriais (tÃxtil, vestuÃrio e acessÃrios, mÃquinas, aparelhos e materiais elÃtricos) expressam, contudo, uma tendÃncia decrescente na evoluÃÃo do Ãndice de produÃÃo fÃsica industrial, o que pode indicar perda relativa desses ramos especificamente.
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Kumkum, Pushpita. "Iodinated Pharmaceuticals as Precursors to Total Organic Halogen Formation in the Presence of Chlorinated Oxidants and Absence of Natural Organic Matter." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1372165569.
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Zhuravleva, Irina [Verfasser], and Rashid [Akademischer Betreuer] Sunyaev. "Radiative transfer in hot gas of galaxy clusters: constraints on ICM turbulence / Irina Zhuravleva. Betreuer: Rashid Sunyaev." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2011. http://d-nb.info/1017688192/34.
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Tillman, Dorothy Hamlin. "Coupling of ecological and water quality models for improved water resource and fish management." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2334.
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Biffi, Veronica [Verfasser], and Hans [Akademischer Betreuer] Boehringer. "Studying the ICM velocity structure within galaxy clusters with simulations and X-ray observations / Veronica Biffi. Betreuer: Hans Boehringer." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2012. http://d-nb.info/1022791133/34.
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Prasad, Swarna Subbulakshmi. "Extending integrated coastal management (ICM) techniques by an evaluation of the stakeholders' roles in environmental degradation in southern India." Thesis, Southampton Solent University, 2008. http://ssudl.solent.ac.uk/572/.
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There is concern for the environmental protection of coastal zones throughout the developed and developing world. The major strategy against environmental degradation is the widespread introduction of the Coastal Zone Management (CZM) and Integrated Coastal Managment (ICM) regulatory processes. A great deal of effort is spent introducing, developing and refining the various ICM processes and structures that should reduce the likelihood of man made environmental catastrophe. ICM itself takes a functional view of management. An alternative and broader set of paradigms as presented by Burrell and Morgan (1979) provide a richer illustration of the process. Applying Burrell and Morgan's multi paradigm approach to the analysis of four case studies of environmental degradation on the Tamil Nadu coast in southern India, the regulatory framework is shown not only to be inadequate, but in fact adding complexity and exacerbating the sociological pressures that led to degradation in ways that will not be overcome by recent refinements of the existing process. An attempt has been made to identify the key issues that are crucial to identifying coastal projects that are 'at risk' of environmental degradation in India and a generic conceptual model is proposed. In the light of the results of this research study, a critique of ICM recommendations that have been commissioned by the Indian government's Ministry of Environment and Forests (MoEF) has been attempted and these are shown to be inadequate in terms of preventing environmental degratation.
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Barachant, Alexandre. "Commande robuste d'un effecteur par une interface cerveau machine EEG asynchrone." Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENT112/document.
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Cette thèse a pour but le développement d’une Interface cerveau-machine (ICM) à partir de la mesure EEG,permettant à l’utilisateur de communiquer avec un dispositif externe directement par l’intermédiaire de son activité cérébrale. Ces travaux ont été menés avec comme ligne directrice le développement d'un système d'ICM utilisable dans un contexte de vie courante, le but étant de réaliser une ICM simple d'utilisation, robuste et ergonomique, permettant le contrôle d'un effecteur avec un temps de calibration minimal.Un brain-switch ou interrupteur cérébral a été réalisé et permet à l'utilisateur d'envoyer une commande binaire. La réalisation d'une telle ICM implique le développement d'algorithmes robustes et leurs mises en œuvre expérimentales. Les travaux réalisés comportent deux volets, l'un concerne le développement de nouveaux algorithmes, l'autre concerne la réalisation de campagne de testsThis thesis presents the development of a Brain computer Interface (BCI) based on EEG signal, allowing its user to communicates with an external device solely by the mean of brain activity. This work as been conduct with the goal of designing a robust, ergonomic and easy to use BCI system for real life applications.In this context, a brain-switch has been developed, allowing it's user to send a binary command to a homeautomation system. This goal can only be achieved by developing new methodologies and algorithms, while testing them on real life experiments. Therefore, this works is two part, the first one is focus on the design of new algorithms, the secondon the design of experimental paradigm
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Angelinelli, Matteo. "Assessing the turbulent pressure in galaxy clusters." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16340/.
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The amount of turbulent pressure support from residual gas motions at the periphery of galaxy clusters is not well known. In this work, we tested different choices for the filtering of laminar and bulk gas motions from simulated datasets, and we produced new analysis of turbulence in galaxy clusters with a large catalog of cluster simulations. In particular, we have explored the application of different filtering scales for the velocity field, exploring the range from 60 to 600 kiloparsec, in order to disentangle laminar from turbulent motions. We also apply a tailored shocks finding algorithm to minimise their contribution to the estimated turbulent budget. We study the ratio of non-thermal pressure versus total pressure and its radial behavior, finding that it is well described by a simple polynomial formula. The typical non-thermal pressure support we measured in the center of cluster is 3%, while this reaches 10% in the outskirts. We have also compared our results with recent numerical and observational literature. In particular, we found that the different definition of turbulent velocity generates very different amount of turbulent support. As we also discussed in a related paper, the fitting procedure which we used is more statistically significant than the ones presented in literature. Our results allow us to compare with recent observations, and assess which turbulent spatial scale best reproduces the observed trends. We also studied the relations between non-thermal support and cluster’s mass or dynamical state. In particular, our tests have shown that there are not any strong correlations between these quantities. We conclude that our no complete mass selection of the sample affect the study of any possible correlation. Some of the key results of this Thesis are already part of a work which is submitted and will be further documented in a dedicated scientific paper.
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Corbett, Benjamin Dawes. "Strategic Change in Response to an Environmental Jolt: Rugby and the Olympic Games." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/365659.
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The sport management field is relatively new, but there are now over one thousand sport management programs in universities around the world. This ubiquity spawned Chalip’s (2006) call for sport management to become a distinct and legitimate academic discipline. Sport management has borrowed theory and models from a range of disciplines including health sciences, psychology, management, economics, and communications. Rightly, those are well-established, highly credible disciplines. However, a prominent way to advance any academic discipline is through theory development. This thesis introduces a new model, the
Integrated Change Model (ICM), which collaborates and extends sport management research in organisational design, organisational change, and institutional theory as a contribution to the theoretical base of sport management.
To further develop and evolve the ICM past a conceptual framework, the present research set forth to explore organisational change in response to an environmental jolt. The context chosen was the Olympic Games’ inclusion of rugby, specifically rugby’s abbreviated version of “Sevens,” to begin at the 2016 Games. The need for the ICM created three aims for the present study: 1) what; 2) how; and, 3) why changes occur in organisations (in this case, rugby national governing bodies) due to an environmental jolt (i.e. Olympic inclusion). It was of particular interest to understand the different responses among organisations in the same sector (i.e. international rugby competition). The research question was developed to satisfy those three aims, and therefore inform the new model: To what extent do organisations within the same sector vary in their response to the same environmental jolt?Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith Business School
Griffith Business School
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Souza, Kamille Leão de. "A expansão das commodities e a suposta desindustrialização na região nordeste do Brasil no período 1991-2012." reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/10105.
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SOUZA, Kamille Leão de. A expansão das commodities e a suposta desindustrialização na região Nordeste do Brasil no período 1991-2012. 2013. 127 f.: Dissertação (mestrado) - Universidade Federal do Ceará. Mestrado Acadêmico em Economia Rural (MAER). Centro de Ciências Agrárias. Fortaleza-CE. 2013Submitted by Francisco Helder Macêdo Rangel (fhelder@ufc.br) on 2014-10-10T17:07:16Z No. of bitstreams: 1 2013_dis_klsouza.pdf: 1329267 bytes, checksum: 189bb2778404c732a679703c10dc924a (MD5)
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Nowadays deindustrialization underway in economies that have not yet reached a high per capita income is the main theme in debates. Several studies were conducted to Brazil on this subject, but the Northeast still lacks analysis in this area. The central hypothesis of this study is to verify ig the Northeast economy was deindustrialized in the period 1991-2012, from the continued growth of commodities in totalexports couopled with the highest share of products with higher technological content in the imports. The analysis was carried out by using data on the trade balance, exports and imports, registering the share of commodities and industrial products, according to the classification adopted by OECD and MDI C (high, medium-high, medium-low, low-tech and unprocessed products), the value added by industry, the share of manufacturing employment and total income (GDP). To this end, we calculated indicators foreign trade (Export Concentration Index-ICX, Concentration Index of Import-ICM, Revealed Comparative Advantage Index over the trade balance-VCR, simple rate of coverage of imports and TC-Index of intra-industrytrade-CII and an econometric model was regressed to verify traces of deindustrialization in relation to industrial production. The results indicate that the northeast export tariff undergoes a reprimarization that, when associated with the increased presence of industrial products with higher technological content of imports, show signs of deindustrialization. However, it is not possible to come to the conclusion that the northeast economy suffers the dutch disease because signs of loss of importance on the industrial sector in total did not appear on the analysis of industrial employment and of the value added by industry in the totaleconomy. There, such results corroborated with the econometric model regressed. However, some industries (textile, clothing and accessories and machinery, equipment and material) showed a decreasing trend in the evolution of the physical industry production index, which may indicate a kind of loss.
Nos dias atuais, é tema dos principais debates a desindustrialização em curso nas economias que ainda não atingiram alta renda per capita. Vários estudos foram realizados no Brasil sobre o assunto, mas a região Nordeste ainda carece de análises nessa área. A hipótese central deste estudo é verificar se a economia nordestina se desindustrializou no per5íodo 1991-2012, com o crescimento contínuo de commodities na pauta de exportações, aliado à maior participação de produtos de conteúdo tecnológico mais relevante na pauta de importações. A análise foi realizada fazendo uso de dados da balança comercial, exportação e importação, registrando a participação das commodities e dos produtos industriais segundo a classificação adotada pelo MDIC e OCDE (Ala, méida-alta, média-baixa, baixa intensidade tecnológica e produtos não industrializados), do valor agregado pela indústria, pela participação do emprego industrial no total e a renda (PIB). Para tal fim, foram calculados indicadores do comércio exterior (Índice de Concentração das Exportações-ICX, Índice de Concentração das Importações-ICM, Índice de Vantagem comparativa Revelada em relação ao saldo comerciakl-VCR, Taxa simples de Cobertura das importações-TC e o Índice de Comércio Intraindústria-CII) e regredido um modelo econométrico para verificar vestígios de desindustrialização concernente à produção industrial. Os resultados indicam que a pauta de exportação nordestina passa por uma reprimarização, que associada à maior presença de produtos industriais com maior conteúdo tecnológico nas importações apresenta sinais de desindustrialização. Não é possível concluir, no entanto, que a economia nordestina padeça da doença holandesa, pois, na análise do emprego industrial e do valor adicionado pela indústria no total da economia, não apareceram sinais de perda de importância do setor industrial no total, resultados esses corroborados pelo modelo econométrico regredido. Alguns segmentos industriais (têxtil, vestuário e acessórios, máquinas, aparelhos e materiais elétricos) expressam, contudo, uma tendência decrescente na evolução do índice de produção física industrial, o que pode indicar perda relativa desses ramos especificamente.
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Jantos, Anne, Matthias Heinz, Eric Schoop, and Ralph Sonntag. "Migration to the Flipped Classroom – Applying a Scalable Flipped Classroom Arrangement." TUDpress, 2016. https://tud.qucosa.de/id/qucosa%3A33955.
Full textAbstract:
Purpose – This paper is part of an extensive project1 which focusses on creating and implementing a scalable flipped classroom framework to broaden information and media competencies in university staff in Saxony. A flipped classroom arrangement with a sensible mix of multimedia tools promotes meaningful learning and lowers travel costs by avoiding content consumption in face-to-face time and instead offers content beforehand using various sources. This paper will in particular focus on the approach to gradually apply a flipped classroom arrangement to a B2B-Marketing course specifically designed for part-time students and use the implications to promote this method and further the step-by-step migration to the flipped classroom at universities in Saxony.
Design/methodology/approach – Gathering information by reviewing previous experiences in E-Learning over the past decade, we were able to create an overview of how to approach part-time students and identified various concepts to create a more flexible and meaningful learning environment. We decided on a flipped classroom arrangement which offers time sensible teaching and promotes meaningful learning. A flipped classroom framework has been created which can be adjusted freely. Finally, we implemented the framework to a B2B-Marketing course by adapting it to the course content, time frame and attendance number. This procedure is designed to gradually increase usage of multi media tools and self efficacy and thereby steadily migrates the course to the flipped classroom.
Originality/value – Focussing on part-time students’ needs and satisfying them with a flipped classroom arrangement is an entirely new approach. This project connects parttime- learning with online learning in a yet unprecedented manner.
Practical implications – This paper describes the project’s two main outcomes. Firstly, an independent scalable framework which can be adapted to different learners’ and teachers’ needs. Secondly, the application strategy is described in detail and offers explicit indications and methods to implement the flipped classroom gradually. Also, there will be an evaluation which will be interpreted and summarized in a guideline as well as patterns and lessons learned. In general, this project aims to broaden media and information competencies and encourage and strengthen collaboration in higher education in Saxony.
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Martins, Ana Luísa Dine. "Uso do algoritmo ICM adaptativo a descontinuidades para o aumento da resolução de imagens digitais por técnicas de reconstrução por super resolução." Universidade Federal de São Carlos, 2007. https://repositorio.ufscar.br/handle/ufscar/349.
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Previous issue date: 2007-05-22Universidade Federal de Minas Gerais
Super resolution image reconstruction consists in using a set of low resolution images from the same scene to generate a high resolution estimate of the original scene. For that purpose, all the observed low resolution images need to have sub-pixel displacements among each other. In this way, there is more than just the same information replicated in each image and then the uncertainty inherent to the displacements can be used as additional information to increase the spatial resolution. This master s thesis proposes a Bayesian approach for the super resolution reconstruction problem using Markov Random Fields and the Potts-Straus model for the image characterization. Therefore, it is possible to incorporate previously known context spatial information about the high resolution image to be estimated. Moreover, a discontinuity adaptive ICM algorithm was used to estimate the maximum a posteriori solution. Using an initial high resolution estimate constructed from the registration and interpolation of all the observations made it possible to reconstruct an image that respected the initially presented discontinuities. We also observed that the resulted high resolution image hold finner details when compared to the initial estimation.
A Reconstrução por Super Resolução consiste em, utilizando várias imagens de baixa resolução da mesma cena, gerar uma aproximação da cena original, que possua resolução espacial mais alta que a presente em qualquer uma das imagens observadas. Para isso, tais imagens devem possuir algum tipo de deslocamento da ordem sub-pixel uma em relação às demais, de forma que não exista apenas a mesma informação replicada em todas as imagens. Assim, a incerteza inerente a tais deslocamentos pode ser usada como informação adicional no aumento de resolução. Nesse contexto, esta pesquisa propõe uma abordagem Bayesiana do problema, utilizando Campos Aleatórios de Markov e o Modelo de Potts-Strauss na caracterização das imagens. Isso torna possível a imposição de informações espaciais de contexto conhecidas a priori da imagem de alta resolução a ser estimada. A estimativa de Máximo a Posteriori (MAP) de alta resolução é encontrada por meio do algoritmo Iterated Conditional Modes (ICM) adaptativo a descontinuidades. Dessa forma, utilizando como estimativa inicial de alta resolução a imagem resultante do registro e interpolação das imagens de baixa resolução observadas, foi possível reconstruir imagens de maior resolução que respeitassem as descontinuidades inicialmente presentes, e que apresentassem maior riqueza de detalhes.
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Dolinsky, Stephanie. "The Legionella longbeachae Icm/Dot substrate SidC binds to the LCV through PtdIns(4)P and facilitates the interaction with the ER." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-177254.
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The genus Legionella consists of environmental bacteria which are the causative agents of
the severe pneumonia Legionnaires’ disease. L. longbeachae and L. pneumophila are able
to replicate intracellularly in human alveolar macrophages and aquatic or soil amoebae. In
order to replicate within host cells the bacteria establish a compartment derived from the
endoplasmatic reticulum (ER) which is called “Legionella-containing vacuole” (LCV). A
bacterial intracellular multiplication/defective in organelle transport (Icm/Dot) type IV
secretion system (T4SS) is essential for the formation of this LCV. The Icm/Dot T4SS
enables translocation of effector proteins into the host cell. More than 100 effector proteins
are presumably translocated during an L. longbeachae infection whereas around 300
translocated effector proteins are known for L. pneumophila. During maturation the LCV
communicates with vesicles from the endocytic vesicle trafficking pathway, avoids fusion
with lysosomes and instead fuses with the ER. Phosphoinositides (PI) such as
phosphatitdylinositol-4-phosphate (PtdIns(4)P) are enriched on the LCV which mediate
the binding of Icm/Dot translocated effector proteins like SidCLpn (substrate of Icm/Dot
transporter) as well as its paralogous protein SdcALpn.
The 73 kDa effector SidM but not the 106 kDa SidCLpn was found in a previous
phosphoinositide pulldown assay with L. pneumophila lysate to be the major PtdIns(4)P
binding protein. Using L. longbeachae lysate we showed binding of the 111 kDa SidCLlo to
PtdIns(4)P in a phosphoinositide pulldown. This result was confirmed by protein-lipid
overlay assays using “PIP-strips”. In further analysis the P4C (PtdIns(4)P-binding of SidC)
domain was identified as a 19 kDa domain of SidCLlo located in the amino acid region 609
to 782. This P4C domain was located in the same region as the 20 kDa SidCLpn_P4C domain
of L. pneumophila. Both P4C domains can be used as LCV markers. This was shown with
GST-tagged proteins binding to LCVs in a cell homogenate. The two P4C domains show a
sequence identity of only 45% and the full-length protein of 40%. Circular dichroism
measurements revealed that the secondary structure of the two proteins is similar.
Moreover, isothermal titration calorimetric measurements indicated a 3.4 higher affinity of
SidCLlo towards PtdIns(4)P compared with SidCLpn.
In RAW 264.7 macrophages infected with L. longbeachae we showed that endogenous
SidCLlo as well as heterologously produced SidCLpn is translocated to the LCV in an Icm/Dot-dependent manner. The deletion of the sidCLlo gene led to a reduced recruitment
of calnexin to the LCV in infected Dictyostelium discoideum. This effect was
complemented by adding plasmid-encoded SidCLlo, SidCLpn or SdcALpn. The same
recruitment defect for a L. pneumophila strain lacking the sidCLpn and sdcALpn genes was
complemented by the production of SidCLlo and SidCLpn as published before. Therefore,
these effectors play a role for pathogen-host interactions by promoting the recruitment of
ER to the LCV. L. longbeachae or L. pneumophila wild-type strains outcompeted their
sidC deletion mutant in a competition assay in Acanthamoeba castellanii. However neither
of the deletion mutants were impaired in their growth in single strain replication
experiments. In summary despite of the small sequence identity and the higher binding
affinity to PtdIns(4)P of SidCLlo compared to SidCLpn both effector proteins seem to have
similar functions during an infection of Legionella.
For the characterization of L. longbeachae-containing vacuoles through proteomic
analysis, LCVs had to be isolated from infected D. discoideum or RAW 264.7
macrophages. Endogenous SidCLlo or heterologously produced SidCLpn were used as LCV
markers for the isolation. Pathogen vacuoles harbouring L. longbeachae were isolated by
immuno-affinity purification using antibodies specifically recognizing SidCLlo or SidCLpn.
Future investigations aim at optimizing the LCV purification protocol for L. longbeachae
to determine the proteome composition of the L. longbeachae-containing vacuole.Die Gattung Legionella besteht aus opportunistischen Pathogenen, die Auslöser für die schwere Lungenentzündung Legionärskrankheit sind. Die Legionella-Spezies L. longbeachae sowie L. pneumophila vermehren sich intrazellulär in humanen alveolaren Makrophagen sowie in aquatischen oder im Boden lebenden Amöben. Ein vom endoplasmatischen Retikulum (ER) abstammendes Kompartiment ist notwendig für die intrazelluläre Replikation. Diese Nische wird als „Legionella-containing vacuole“ (LCV) bezeichnet. Die Bildung der LCV benötigt ein „intracellular multiplication/defective in organelle transport“ (Icm/Dot) Typ IV Sekretionssystem (T4SS), das Effektorproteine in die Wirtszelle transportiert. Zurzeit sind über 100 vermutete Effektorproteine für L. longbeachae und etwa 300 Effektorproteine für L. pneumophila beschrieben. Im Verlauf eines Reifungsprozesses kommuniziert die LCV mit endosomalen Vesikeln, verhindert eine Fusion mit den Lysosomen und fusioniert mit dem ER. Phosphoinositide wie das PtdIns(4)P wurden auf der LCV gefunden. Diese dienen als Bindestellen für die durch das Icm/Dot translozierten Effektorproteine wie das SidCLpn und sein paraloges Protein SdcALpn. In einer früheren Studie wurde in einem Phosphoinositid-Pulldown Experiment das 73 kDa Effektorprotein SidM aber nicht das 106 kDa Protein SidCLpn als Bindepartner von PtdIns(4)P nachgewiesen. Wir konnten in einem Phosphoinositid-Pulldown Experiment mit L. longbeachae Lysat zeigen, dass das 111 kDa homologe Protein von SidCLpn SidCLlo der Bindepartner von L. longbeachae für PtdIns(4)P ist. Ein 19 kDa großes SidCLlo- Fragment im Bereich der Aminosäuren 609 bis 782 konnte identifiziert werden, das für die Bindung von SidCLlo an PtdIns(4)P notwendig ist. Interessanterweise liegt die früher beschriebene 20 kDa große P4C Domäne von SidCLpn in der gleichen Region. Durch Inkubation von GST-gekoppelten SidCLlo_P4C-Proteinen mit L. pneumophila Zellhomogenat konnten wir zeigen, dass SidCLlo_P4C die Vakuole von L. pneumophila homogen dekoriert. Daher kann SidCLlo_P4C genauso wie das SidCLpn_P4C als LCV Marker benutzt werden. Die P4C Domänen besitzen eine Sequenzhomologie von 45% und SidCLlo und SidCLpn zeigen eine Sequenzhomologie von 40%. Mittels zirkularer Dichroismus Messung konnte gezeigt werden, dass die beiden Proteine ähnliche Sekundärstrukturen besitzen. Mittels isothermer Titrationskalorimetrie konnten wir zeigen, dass SidCLlo eine 3.4-fach höhere Bindeaffinität zu PtdIns(4)P besitzt als SidCLpn. In infizierten RAW 264.7 Makrophagen konnte wir zeigen, dass L. longbeachae nicht nur sein eigenes endogen produzierten SidCLlo sondern auch ein heterolog exprimiertes SidCLpn in einer Icm/Dot abhängigen Art und Weise auf die LCV transloziert. Frühere Studien zeigten, dass in einer sidC-sdcALpn Deletionsmutante die ER Rekrutierung zu der LCV in infizierten D. discoideum Zellen beeinträchtigt ist. Wir konnten zeigen, dass die heterologe Produktion von SidCLlo diesen Rekrutierungsfehler komplementieren kann, ebenso wie Plasmid-kodiertes SidCLpn oder SdcALpn. Die Deletion vom Gen sidCLlo in L. longbeachae führt ebenfalls zu einer verminderten Rekrutierung von ER-Markern zur LCV in infizierten D. discoideum. Dieser Effekt konnte durch eine Produktion von SidCLlo, SidCLpn und SdcALpn komplementiert werden. Die SidC Deletionsstämme von L. longbeachae oder L. pneumophila replizierten in Acanthamoeba castellanii wie die entsprechenden Wildtyp-Stämme, aber in direkter Konkurrenz wurden die Deletionsmutanten von den Wildtyp-Stämmen verdrängt. Insgesamt scheinen trotz der geringen Sequenzidentität und der höheren Bindeaffinität von SidCLlo im Vergleich zu SidCLpn zu PtdIns(4)P beide Effektorproteine ähnliche Funktionen im Infektionsweg von Legionella wahr zu nehmen. Für die Charakterisierung von L. longbeachae-enthaltenden Vakuolen in einer Proteomanalyse müssen LCVs aus D. discoideum oder RAW 264.7 Makrophagen isoliert werden. Endogenes SidCLlo oder heterolog produziertes SidCLpn wurden als Vakuolen- Marker für die Isolation von L. longbeachae-enthaltenen Vakuolen verwendet. L. longbeachae-enthaltene Vakuolen wurden in einer Immunaffinitätsaufreinigung mit Hilfe spezifischer Antikörper gegen SidCLlo oder SidCLpn isoliert. Weitere Studien zielen auf die Verbesserung der Vakuolen-Isolation von L. longbeachae, um das Proteom dieser LCV zu charakterisieren.
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Ferreira, Celso Tavares. "A tributação no comércio interestadual de mercadorias e seus reflexos nas economias estaduais: um estudo sobre o ICM nos anos 1974-1986." Faculdade de Economia, 1993. http://repositorio.ufba.br/ri/handle/ri/23299.
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O presente trabalho visou estudar algumas questões que envolvem o imposto estadual, concentrado-se mais especificamente na tributação sobre o comércio interestadual de mercadorias, praticada no Brasil, no período de 1974 a 1986, buscando-se estimar e avaliar os seus reflexos sobre as finanças estaduais.
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Grandchamp, Romain. "Electroencéphalographie et Interfaces Cerveau-Machine : nouvelles méthodes pour étudier les états mentaux." Phd thesis, Université Paul Sabatier - Toulouse III, 2012. http://tel.archives-ouvertes.fr/tel-00803635.
Full textAbstract:
Avec les avancées technologiques dans le domaine de l'imagerie cérébrale fonctionnelle et les progrès théoriques dans la connaissance des différents éléments neuro-physiologiques liés à la cognition, les deux dernières décennies ont vu l'apparition d'interfaces cerveau-machine (ICM) permettant à une personne d'observer en temps réel, ou avec un décalage qui se limite à quelques secondes, sa propre activité cérébrale. Le domaine clinique en général, et plus particulièrement celui de la neuropsychologie et des pathologies conduisant à un handicap moteur lourd, pour lesquels les applications potentielles sont nombreuses qu'elles soient thérapeutiques ou en vue d'une réhabilitation fonctionnelle, a constitué un moteur important de la recherche sur ce nouveau domaine des neurosciences temps réel. Parmi ces applications, le neurofeedback, ou neurothérapie, qui vise l'acquisition par le sujet du contrôle volontaire de certains aspects de son activité cérébrale en vue de les amplifier ou au contraire les diminuer dans un but thérapeutique, voire d'optimisation cognitive, représente une technique prometteuse, alternative aux thérapies et traitements médicamenteux. Cependant, la validation de ce type d'intervention et la compréhension des mécanismes mis en jeux en sont encore à leurs balbutiements. L'entraînement par neurofeedback est souvent long, pouvant s'étaler sur plusieurs semaines. Il est donc très probable que ce type de rééducation cérébrale sollicite des phénomènes de plasticité qui s'inscrivent dans une dynamique lente, et de ce fait, requiert une durée relativement longue d'entraînement pour atteindre les effets à long terme recherchés. Cependant, à cela peuvent s'ajouter de nombreux éléments perturbateurs qui pourraient être à l'origine de la difficulté de l'apprentissage et des longs entraînements nécessaires pour obtenir les résultats attendus. Parmi eux, les perturbations qui viennent déformer le signal enregistré, ou les éléments artefactuels qui ne font pas partie du signal d'intérêt, sont une première cause potentielle. Le manque de spécificité fonctionnelle du signal retourné au sujet pourrait en constituer une deuxième. Nous avons d'une part développé des outils méthodologiques de traitement du signal en vue d'améliorer la robustesse des analyses des signaux EEG, principalement utilisés jusqu'à maintenant dans le domaine du neurofeedback et des ICM, face aux artefacts et au bruit électromagnétique. D'autre part, si l'on s'intéresse au problème de la spécificité fonctionnelle du signal présenté au sujet, des études utilisant l'IRM fonctionnelle ou des techniques de reconstruction de sources à partir du signal EEG, qui fournissent des signaux ayant une meilleure spécificité spatiale, laissent entrevoir de possibles améliorations de la vitesse d'apprentissage. Afin d'augmenter la spécificité spatiale et la contingence fonctionnelle du feedback présenté au sujet, nous avons étudié la stabilité de la décomposition de l'EEG en différentes sources d'activité électrique cérébrale par Analyse en Composantes Indépendantes à travers différentes séances d'enregistrement effectuées sur un même sujet. Nous montrons que ces décompositions sont stables et pourraient permettre d'augmenter la spécificité fonctionnelle de l'entraînement au contrôle de l'activité cérébrale pour l'utilisation d'une ICM. Nous avons également travaillé à l'implémentation d'un outil logiciel permettant l'optimisation des protocoles expérimentaux basés sur le neurofeedback afin d'utiliser ces composantes indépendantes pour rejeter les artefacts en temps réel ou extraire l'activité cérébrale à entraîner. Ces outils sont utiles dans le cadre de l'analyse et de la caractérisation des signaux EEG enregistrés, ainsi que dans l'exploitation de leurs résultats dans le cadre d'un entraînement de neurofeedback. La deuxième partie de ce travail s'intéresse à la mise en place de protocoles de neurofeedback et à l'impact de l'apprentissage. Nous décrivons tout d'abord des résultats obtenus sur une étude pilote qui cherche à évaluer chez des sujets sains l'impact d'un protocole de neuro-feedback basé sur le contrôle du rythme Mu. Les changements comportementaux ont été étudiés à l'aide d'un paradigme de signal stop qui permet d'indexer les capacités attentionnelles et d'inhibition de réponse motrice sur lesquelles on s'attend à ce que l'entraînement ICM ait une influence. Pour clore cette partie, nous présentons un nouvel outil interactif immersif pour l'entraînement cérébral, l'enseignement, l'art et le divertissement pouvant servir à évaluer l'impact de l'immersion sur l'apprentissage au cours d'un protocole de neurofeedback. Enfin, les perspectives de l'apport des méthodes et résultats présentés sont discutées dans le contexte du développement des ICMs de nouvelle génération qui prennent en compte la complexité de l'activité cérébrale. Nous présentons les dernières avancées dans l'étude de certains aspects des corrélats neuronaux liés à deux états mentaux ou classes d'états mentaux que l'on pourrait qualifier d'antagonistes par rapport au contrôle de l'attention : la méditation et la dérive attentionnelle, en vue de leur intégration à plus long terme dans un entraînement ICM par neurofeedback.
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Kvízová, Markéta Bc. "Financování a provoz Informačních center mládeže v kraji Vysočina." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-2781.
Full textAbstract:
Diplomová práce se zabývá situací v oblasti Informačních center mládeže. Definuje aspekty současného systému fungování ICM a jejich financování. Zaměřuje se na ICM v kraji Vysočina. Rozebírá jejich vznik, počet pracovníků, provozovatele, provozní dobu, technické vybavení, materiální zajištění, ohlasy veřejnosti, návštěvnost, okruh poskytovaných služeb. Zjišťuje možnosti financování ICM. Vyjadřuje doporučení k ideálnímu stavu sítě ICM v kraji Vysočina.
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Lichnovská, Natalija Bc. "Financování a provoz Informačních center mládeže v kraji Vysočina." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-2782.
Full textAbstract:
Diplomová práce se zabývá situací v oblasti Informačních center mládeže. Definuje aspekty současného systému fungování ICM a jejich financování. Zaměřuje se na ICM v kraji Vysočina. Rozebírá jejich vznik, počet pracovníků, provozovatele, provozní dobu, technické vybavení, materiální zajištění, ohlasy veřejnosti, návštěvnost, okruh poskytovaných služeb. Zjišťuje možnosti financování ICM. Vyjadřuje doporučení k ideálnímu stavu sítě ICM v kraji Vysočina.
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Lichnovská, Natalija. "Financování a provoz Informačních center mládeže v kraji Vysočina." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-4013.
Full textAbstract:
Diplomová práce se zabývá situací v oblasti Informačních center mládeže. Definuje aspekty současného systému fungování ICM a jejich financování. Zaměřuje se na ICM v kraji Vysočina. Rozebírá jejich vznik, počet pracovníků, provozovatele, provozní dobu, technické vybavení, materiální zajištění, ohlasy veřejnosti, návštěvnost, okruh poskytovaných služeb. Zjišťuje možnosti financování ICM. Vyjadřuje doporučení k ideálnímu stavu sítě ICM v kraji Vysočina.
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Kvízová, Markéta. "Financování a provoz Informačních center mládeže v kraji Vysočina." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-4014.
Full textAbstract:
Diplomová práce se zabývá situací v oblasti Informačních center mládeže. Definuje aspekty současného systému fungování ICM a jejich financování. Zaměřuje se na ICM v kraji Vysočina. Rozebírá jejich vznik, počet pracovníků, provozovatele, provozní dobu, technické vybavení, materiální zajištění, ohlasy veřejnosti, návštěvnost, okruh poskytovaných služeb. Zjišťuje možnosti financování ICM. Vyjadřuje doporučení k ideálnímu stavu sítě ICM v kraji Vysočina.
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Debeb, Bisrat Godefay. "Molecular characterization of oct4-expressing yolk sac endoderm stem cell lines." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2657.
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Huang, Fangping. "Water and Fat Image Reconstruction in Magnetic Resonance Imaging." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1309791802.
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Killinger, Alexis. "Iodinated X-ray contrast media (ICM) as precursors to disinfection byproduct (DBP) formation and enhanced toxicity as a function of pH and chlorinated oxidant." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460375515.
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Cortés, Sobarzo Marcos Andrés [Verfasser], and Reinhard [Akademischer Betreuer] Wirth. "Study of the type 4B protein secretion system (Dot/Icm) and the effector protein SdhA in Piscirickettsia Salmonis / Marcos Andrés Cortés Sobarzo ; Betreuer: Reinhard Wirth." Regensburg : Universitätsbibliothek Regensburg, 2017. http://d-nb.info/1149366680/34.
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Cortés, Sobarzo Marcos Andrés [Verfasser], and Reinhard [Akademischer Betreuer] Wirth. "Study of the type 4B protein secretion system (Dot/Icm) and the effector protein SdhA in Piscirickettsia Salmonis / Marcos Andrés Cortés Sobarzo ; Betreuer: Reinhard Wirth." Regensburg : Universitätsbibliothek Regensburg, 2018. http://d-nb.info/1149920378/34.
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LECCARDI, ALBERTO. "Thermodynamic and chemical properties of the intra-cluster medium in the outer regions of galaxy clusters." Doctoral thesis, Università degli Studi di Milano, 2009. http://hdl.handle.net/2434/72734.
Full textAbstract:
Clusters of galaxies are the most massive gravitationally bound systems in the universe.
They are permeated by a hot, X-ray emitting, intra-cluster medium (ICM), which represents
the dominant baryonic component. The key ICM observable quantities are its density, temperature, and chemical composition (in particular, the so-called metallicity).
Measuring the gas density is relatively simple, whereas measuring the temperature
and the metallicity of the ICM requires accumulating a spectrum and fitting it with
a plasma model. The aim of my thesis is the characterization of the radial properties
(especially temperature and metallicity) of the ICM, for a large sample of clusters of galaxies observed with XMM-Newton. Particular attention was paid to investigate and characterize the systematic effects that may affect measurements. I also employed simulations to examine how best to analyze spectra with poor statistical quality and find an unbiased estimator of the temperature (Leccardi & Molendi, 2007).
Finally, I reported some preliminary results obtained by investigating thermodynamic and
chemical properties of cluster cores for an enlarged sample from z = 0.02 to z = 0.25;
these results will be discussed in a forthcoming paper (Leccardi et al., in prep.).
The bulk of my thesis is based on two published papers, namely Leccardi & Molendi (2008a) and Leccardi & Molendi (2008b).
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Pasini, Thomas. "Studio radio-X del ciclo di raffreddamento e feedback in Abell 2495." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/17100/.
Full textAbstract:
In questo lavoro di tesi viene eseguita un'analisi accurata in banda radio e nei raggi X dell'ammasso di galassie Abell 2495. Questo oggetto è stato selezionato tra gli ammassi con più alto flusso X e luminosità Halpha; queste sembrano infatti essere caratteristiche peculiari degli ammassi cosiddetti cool-core.
In aggiunta, questi dati sono stati confrontati con quelli relativi all'emissione Halpha presentati in letteratura.
Dal confronto dell'emissione X e radio sono state ricavate le proprietà principali dell'ammasso e della radiosorgente posta al centro della galassia (BCG). Sono stati individuati due offset, uno tra l'emissione radio e il picco X e uno tra quest'ultimo e il picco Halpha, che possono indicare che il raffreddamento non stia attualmente depositando gas sulla BCG.
Si è inoltre investigata la presenza di possibili cavità dell'ICM, che si pensa siano generate dall'attività dell'AGN, valutando grazie ad esse l'impatto che gli offset di cui sopra possono avere nei processi di raffreddamento e feedback che caratterizzano l'ammasso.
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Foxwell-Norton, Kerrie-Ann, and na. "Communicating the Australian Coast: Communities, Cultures and Coastcare." Griffith University. School of Arts, 2007. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20070814.094758.
Full textAbstract:
In Australia, Integrated Coastal Zone Management (ICM) is the policy framework adopted by government to manage the coastal zone. Amongst other principles, ICM contains an explicit mandate to include local communities in the management of the coastal zone. In Australia, the Coastcare program emerged in response to international acceptance of the need to involve local communities in the management of the coastal zone. This dissertation is a critical cultural investigation of the Coastcare program to discover how the program and the coastal zone generally, is understood and negotiated by three volunteer groups in SE Queensland. There is a paucity of data surrounding the actual experiences of Coastcare volunteers. This dissertation begins to fill this gap in our knowledge of local community involvement in coastal management. My dissertation considers the culture of Coastcare and broadly, community participation initiatives. Coastcare participants, government policymakers, environmental scientists, etc bring to their encounter a specific way of seeing the coast a cultural framework which guides their actions, ideas and priorities for the coastal zone. These cultural frameworks are established and maintained in the context of unequal relations of power and knowledge. The discourses of environmental science and economics as evidenced in the chief ICM policy objective, Ecologically Sustainable Development (ESD) are powerful knowledges in the realm of community participation policy. This arrangement has serious consequences for what governments and experts can expect to achieve via community participation programs. In short, the quest for power-sharing with communities and meaningful participation is impeded by dominant scientific and economic cultures which act to marginalise and discredit the cultures of communities (and volunteers). Ironically enough, the lack of consideration of these deeper relations of power and knowledge means that the very groups (such as policymakers, environmental scientists, etc) who actively seek the participation of local communities, contribute disproportionately to the relative failure of community participation programs. At the very least, as those in a position of power, policymakers and associated experts do little to enhance communication with local communities. To this situation add confusion wrought by changes in the delivery of the Coastcare program and a lack of human and financial resources. From this perspective, the warm and fuzzy sentiment of Coastcare can be understood as the Coastcare of neglect. However, the emergence of community participation as legitimate in environmental policymaking indicates a fissure in the traditional power relations between communities and experts. Indeed the entry of community participation policy is relatively new territory for the environmental sciences. It is this fissure which I seek to explore and encourage via the application of a cultural studies framework which offers another way of seeing community participation in coastal and marine management and thereby, offers avenues to improve relations between communities and experts. My fieldwork reveals a fundamental mismatch between the cultural frameworks which communities bring to the coast and those frameworks embodied and implemented by the Coastcare program. Upon closer examination, it is apparent that the Coastcare program (and community participation programs generally) are designed to introduce local lay communities to environmental science knowledge. Local coastal cultures are relegated to the personal and private realm. An excellent example of this is the scientifically oriented eligible areas for funding of the Coastcare program. The volunteers consulted for this project emphasized their motivation in terms of maintaining the natural beauty of the coast and protecting a little bit of coast from the rampant development of the coastal zone. Their motivations were largely the antithesis of ESD. They understood their actions as thwarting the negative impacts of coastal development this occurred within a policy framework which accepted development as fait daccompli. Australias nation of coastal dwellers may not know a lot about coastal ecologies but they do know the coast in other ways. Community knowledge of the coast can be largely accounted for in the phrase, Australian beach culture. Serious consideration of Australian beach culture in environmental policy is absent. The lack of attention to this central tenet of the Australian way of life is because, as a concept and in practice, beach culture lacks the seriousness and objectivity of environmental science knowledge it is about play, hedonism, holidays, spirituality, emotion and fun. The stories (including Indigenous cultural heritage) which emerge when Australians are asked about their beach cultural knowledge historical and contemporary experiences of the Australian coast await meaningful consideration by those interested in communicating with Australian communities living on the coast. This cultural geography is an avenue for policymakers to better communicate and engage with Australian communities in their quest to increase participation in, or motivate interest in community coastal management programs.
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Grandchamp, Romain. "Électroencéphalographie et interfaces cerveau-machine : nouvelles méthodes pour étudier les états mentaux." Toulouse 3, 2012. http://thesesups.ups-tlse.fr/2020/.
Full textAbstract:
Avec les avancées technologiques dans le domaine de l'imagerie cérébrale fonctionnelle et les progrès théoriques dans la connaissance des différents éléments neurophysiologiques liés à la cognition, les deux dernières décennies ont vu l'apparition d'interfaces cerveau-machine (ICM) permettant à une personne d'observer en temps réel, ou avec un décalage qui se limite à quelques secondes, sa propre activité cérébrale. Le domaine clinique en général, et plus particulièrement celui de la neuropsychologie et des pathologies conduisant à un handicap moteur lourd, pour lesquels les applications potentielles sont nombreuses qu'elles soient thérapeutiques ou en vue d'une réhabilitation fonctionnelle, a constitué un moteur important de la recherche sur ce nouveau domaine des neurosciences temps réel. Parmi ces applications, le neurofeedback, ou neurothérapie, qui vise l'acquisition par le sujet du contrôle volontaire de certains aspects de son activité cérébrale en vue de les amplifier ou au contraire les diminuer dans un but thérapeutique, voire d'optimisation cognitive, représente une technique prometteuse, alternative aux thérapies et traitements médicamenteux. Cependant, la validation de ce type d'intervention et la compréhension des mécanismes mis en jeux en sont encore à leurs balbutiements. L'entraînement par neurofeedback est souvent long, pouvant s'étaler sur plusieurs semaines. Il est donc très probable que ce type de rééducation cérébrale sollicite des phénomènes de plasticité qui s'inscrivent dans une dynamique lente, et de ce fait, requiert une durée relativement longue d'entraînement pour atteindre les effets à long terme recherchés. Cependant, à cela peuvent s'ajouter de nombreux éléments perturbateurs qui pourraient être à l'origine de la difficulté de l'apprentissage et des longs entraînements nécessaires pour obtenir les résultats attendus. Parmi eux, les perturbations qui viennent déformer le signal enregistré, ou les éléments artefactuels qui ne font pas partie du signal d'intérêt, sont une première cause potentielle. Le manque de spécificité fonctionnelle du signal retourné au sujet pourrait en constituer une deuxième. Nous avons d'une part développé des outils méthodologiques de traitement du signal en vue d'améliorer la robustesse des analyses des signaux EEG, principalement utilisés jusqu'à maintenant dans le domaine du neurofeedback et des ICM, face aux artefacts et au bruit électromagnétique. D'autre part, si l'on s'intéresse au problème de la spécificité fonctionnelle du signal présenté au sujet, des études utilisant l'IRM fonctionnelle ou des techniques de reconstruction de sources à partir du signal EEG, qui fournissent des signaux ayant une meilleure spécificité spatiale, laissent entrevoir de possibles améliorations de la vitesse d'apprentissage. Afin d'augmenter la spécificité spatiale et la contingence fonctionnelle du feedback présenté au sujet, nous avons étudié la stabilité de la décomposition de l'EEG en différentes sources d'activité électrique cérébrale par Analyse en Composantes Indépendantes à travers différentes séances d'enregistrement effectuées sur un même sujet. Nous montrons que ces décompositions sont stables et pourraient permettre d'augmenter la spécificité fonctionnelle de l'entraînement au contrôle de l'activité cérébrale pour l'utilisation d'une ICM. Nous avons également travaillé à l'implémentation d'un outil logiciel permettant l'optimisation des protocoles expérimentaux basés sur le neurofeedback afin d'utiliser ces composantes indépendantes pour rejeter les artefacts en temps réel ou extraire l'activité cérébrale à entraîner. Ces outils sont utiles dans le cadre de l'analyse et de la caractérisation des signaux EEG enregistrés, ainsi que dans l'exploitation de leurs résultats dans le cadre d'un entraînement de neurofeedback. La deuxième partie de ce travail s'intéresse à la mise en place de protocoles de neurofeedback et à l'impact de l'apprentissage. Nous décrivons tout d'abord des résultats obtenus sur une étude pilote qui cherche à évaluer chez des sujets sains l'impact d'un protocole de neurofeedback basé sur le contrôle du rythme Mu. Les changements comportementaux ont été étudiés à l'aide d'un paradigme de signal stop qui permet d'indexer les capacités attentionnelles et d'inhibition de réponse motrice sur lesquelles on s'attend à ce que l'entraînement ICM ait une influence. Pour clore cette partie, nous présentons un nouvel outil interactif immersif pour l'entraînement cérébral, l'enseignement, l'art et le divertissement pouvant servir à évaluer l'impact de l'immersion sur l'apprentissage au cours d'un protocole de neurofeedback. Enfin, les perspectives de l'apport des méthodes et résultats présentés sont discutées dans le contexte du développement des ICMs de nouvelle génération qui prennent en compte la complexité de l'activité cérébrale. Nous présentons les dernières avancées dans l'étude de certains aspects des corrélats neuronaux liés à deux états mentaux ou classes d'états mentaux que l'on pourrait qualifier d'antagonistes par rapport au contrôle de l'attention : la méditation et la dérive attentionnelle, en vue de leur intégration à plus long terme dans un entraînement ICM par neurofeedbackWith new technological advances in functional brain imaging and theoretical progress in the knowledge of the different neurophysiologic processes linked to cognition, the last two decades have seen the emergence of Brain-Machine Interfaces (BCIs) allowing a person to observe in real-time, or with a few seconds delay, his own cerebral activity. Clinical domain in general, and more particularly neuropsychology and pathologies leading to heavy motor handicaps, for which potential applications are numerous, whether therapeutic or for functional rehabilitation, has been a major driver of research on this new field of real-time neurosciences. Among these applications, neurofeedback, or neurotherapy, which aims the subject to voluntary control some aspects of his own cerebral activity in order to amplify or reduce them in a therapeutic goal, or for cognitive optimization, represents a promising technique, and an alternative to drug treatments. However, validation of this type of intervention and understanding of involved mechanisms are still in their infancy. Neurofeedback training is often long, up to several weeks. It is therefore very likely that this type of rehabilitation is seeking brain plasticity phenomena that are part of slow dynamics, and thus require a relatively long drive to achieve the desired long-term effects. However, other disturbing elements that could add up to the cause of the difficulty of learning and long training sessions required to achieve the expected results. Among them, the disturbances that come from recorded signal distortions, or artifactual elements that are not part of the signal of interest, are a first potential cause. The lack of functional specificity of the signal returned to the subject could be a second one. We have developed signal processing methodological tools to improve the robustness to artifacts and electromagnetic noise of EEG signals analysis, the main brain imaging technique used so far in the field of neurofeedback and BCIs. On the other hand, if one looks at the issue of functional specificity of the signal presented to the subject, studies using functional MRI or source reconstruction methods from the EEG signal, which both provide signals having a better spatial specificity, suggest improvements to the speed of learning. Seeing Independent Component Analysis as a potential tool to increase the spatial specificity and functional contingency of the feedback signal presented to the subject, we studied the stability of Independent Component Analysis decomposition of the EEG across different recording sessions conducted on the same subjects. We show that these decompositions are stable and could help to increase the functional specificity of BCI training. We also worked on the implementation of a software tool that allows the optimization of experimental protocols based on neurofeedback to use these independent components to reject artifacts or to extract brain activity in real-time. These tools are useful in the analysis and characterization of EEG signals recorded, and in the exploitation of their results as part of a neurofeedback training. The second part focuses on the development of neurofeedback protocols and the impact of learning. We first describe the results of a pilot study which seeks to evaluate the impact of a neurofeedback protocol based on the Mu rhythm control on healthy subjects. The behavioral changes were studied using a stop signal paradigm that indexes the attentional abilities and inhibition of motor responses on which the BCI training can possibly have influence. To conclude this section, we present a new tool for immersive interactive brain training, education, art and entertainment that can be used to assess the impact of immersion on learning during a neurofeedback protocol. Finally, prospects for methods and results presented are discussed in the context of next-generation BCI development which could take brain activity complexity into account. We present the latest advances in the study of certain aspects of the neural correlates associated with two mental states or classes of mental states that could be described as antagonistic with respect to the control of attention: meditation and mind wandering, for their integration in the longer term in an BCI training using neurofeedback
40
Saiz, Nestor. "Regulation of cell fate and cell behaviour during primitive endoderm formation in the early mouse embryo." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/regulation-of-cell-fate-and-cell-behaviour-during-primitive-endoderm-formation-in-the-early-mouse-embryo(d40bb786-85ed-4efd-af64-aab331df98e8).html.
Full textAbstract:
The preimplantation stages of mammalian development are dedicated to the differentiation of two extraembryonic epithelia, the trophectoderm (TE) and the primitive endoderm (PrE), and their segregation from the pluripotent embryonic lineage, the epiblast. The TE and PrE are responsible for implantation into the uterus and for producing the tissues that will support and pattern the epiblast as it develops into the foetus. PrE and epiblast are formed in a two step process that involves random cell fate specification, mediated by fibroblast growth factor (FGF) signalling, and cell sorting through several mechanisms. In the present work I have addressed aspects of both steps of this process. Chimaera assays showed that epiblast precursors transplanted onto a recipient embryo rarely differentiate into PrE, while PrE precursors are able to switch their identity and become epiblast. Transient stimulation or inhibition of the FGF4-ERK pathway in the chimaeras can modify the behaviour of these cells and restore the plasticity of epiblast precursors. This work shows that epiblast precursors are refractory to differentiation signals, thus ensuring the preservation of the embryonic lineage. I have also found that atypical Protein Kinase C (aPKC) is a marker of PrE cells and that pharmacological inhibition of aPKC impairs the segregation of PrE and epiblast precursors. Furthermore, it affects the survival of PrE cells and can alter the subcellular localisation of the PrE transcription factor GATA4. These data indicate aPKC plays a central role for the sorting of the PrE and epiblast populations and links cell position within the embryo to PrE maturation and survival. Lastly, I have found that aPKC can directly phosphorylate GATA4 in vitro. Knockdown of GATA4 affects cell position within the embryo, whereas aPKC knockdown reduces the number of GATA4-positive cells. These results indicate GATA4 plays an important role in cell sorting during preimplantation development and suggest phosphorylation by aPKC could determine its presence in the nuclei of PrE cells. My work, in the light of the current knowledge, supports a model where the earliest cell fate decisions during mammalian development depend on cellular interactions and not on inherited cell fate determinants. This robust mode of development underlies the plasticity of the preimplantation embryo and ensures the formation of the first mammalian cell lineages, critical for any further progression in mammalian development.
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Foxwell-Norton, Kerrie-Ann. "Communicating the Australian Coast: Communities, Cultures and Coastcare." Thesis, Griffith University, 2007. http://hdl.handle.net/10072/367816.
Full textAbstract:
In Australia, Integrated Coastal Zone Management (ICM) is the policy framework adopted by government to manage the coastal zone. Amongst other principles, ICM contains an explicit mandate to include local communities in the management of the coastal zone. In Australia, the Coastcare program emerged in response to international acceptance of the need to involve local communities in the management of the coastal zone. This dissertation is a critical cultural investigation of the Coastcare program to discover how the program and the coastal zone generally, is understood and negotiated by three volunteer groups in SE Queensland. There is a paucity of data surrounding the actual experiences of Coastcare volunteers. This dissertation begins to fill this gap in our knowledge of local community involvement in coastal management. My dissertation considers the culture of Coastcare and broadly, community participation initiatives. Coastcare participants, government policymakers, environmental scientists, etc bring to their encounter a specific ‘way of seeing’ the coast – a cultural framework – which guides their actions, ideas and priorities for the coastal zone. These cultural frameworks are established and maintained in the context of unequal relations of power and knowledge. The discourses of environmental science and economics – as evidenced in the chief ICM policy objective, Ecologically Sustainable Development (ESD) – are powerful knowledges in the realm of community participation policy. This arrangement has serious consequences for what governments and experts can expect to achieve via community participation programs. In short, the quest for ‘power-sharing’ with communities and ‘meaningful participation’ is impeded by dominant scientific and economic cultures which act to marginalise and discredit the cultures of communities (and volunteers). Ironically enough, the lack of consideration of these deeper relations of power and knowledge means that the very groups (such as policymakers, environmental scientists, etc) who actively seek the participation of local communities, contribute disproportionately to the relative failure of community participation programs. At the very least, as those in a position of power, policymakers and associated experts do little to enhance communication with local communities. To this situation add confusion wrought by changes in the delivery of the Coastcare program and a lack of human and financial resources. From this perspective, the warm and fuzzy sentiment of Coastcare can be understood as the ‘Coastcare of neglect’. However, the emergence of community participation as ‘legitimate’ in environmental policymaking indicates a fissure in the traditional power relations between communities and experts. Indeed the entry of ‘community participation policy’ is relatively new territory for the environmental sciences. It is this fissure which I seek to explore and encourage via the application of a cultural studies framework which offers another ‘way of seeing’ community participation in coastal and marine management and thereby, offers avenues to improve relations between communities and experts. My fieldwork reveals a fundamental mismatch between the cultural frameworks which communities bring to the coast and those frameworks embodied and implemented by the Coastcare program. Upon closer examination, it is apparent that the Coastcare program (and community participation programs generally) are designed to introduce local ‘lay’ communities to environmental science knowledge. Local coastal cultures are relegated to the personal and private realm. An excellent example of this is the scientifically oriented ‘eligible areas for funding’ of the Coastcare program. The volunteers consulted for this project emphasized their motivation in terms of ‘maintaining the natural beauty of the coast’ and ‘protecting a little bit of coast from the rampant development of the coastal zone’. Their motivations were largely the antithesis of ESD. They understood their actions as thwarting the negative impacts of coastal development – this occurred within a policy framework which accepted development as fait d’accompli. Australia’s nation of coastal dwellers may not know a lot about ‘coastal ecologies’ but they do know the coast in other ways. Community knowledge of the coast can be largely accounted for in the phrase, ‘Australian beach culture’. Serious consideration of Australian beach culture in environmental policy is absent. The lack of attention to this central tenet of the Australian way of life is because, as a concept and in practice, beach culture lacks the ‘seriousness’ and objectivity of environmental science knowledge – it is about play, hedonism, holidays, spirituality, emotion and fun. The stories (including Indigenous cultural heritage) which emerge when Australians are asked about their ‘beach cultural knowledge’ – historical and contemporary experiences of the Australian coast – await meaningful consideration by those interested in communicating with Australian communities living on the coast. This ‘cultural geography’ is an avenue for policymakers to better communicate and engage with Australian communities in their quest to increase participation in, or motivate interest in community coastal management programs.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Arts
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Dolinsky, Stephanie [Verfasser], and Hubert [Akademischer Betreuer] Hilbi. "The Legionella longbeachae Icm/Dot substrate SidC binds to the LCV through PtdIns(4)P and facilitates the interaction with the ER / Stephanie Dolinsky. Betreuer: Hubert Hilbi." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2014. http://d-nb.info/1065610025/34.
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Venot, Tristan. "Design and evaluation of a multimodal control of a robotic arm with a Brain Computer Interface." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS418.
Full textAbstract:
Les interfaces cerveau machines ont quitté le domaine de la science-fiction dans les années 70 avec la réflexion portée par Jacques Vidal sur la faisabilité d’utiliser des signaux électro-encéphalogrammes comme moyen de communication entre le cerveau et des dispositifs extérieurs. Pendant le développement de ce domaine de recherche, différentes pistes ont été explorées afin de créer une véritable interface entre le cerveau et une machine. Les méthodes d’acquisition ont pris différentes formes et avec l'amélioration des capacités informatiques et l'avènement de l'apprentissage automatique, les méthodes de classification des données cérébrales sont devenues plus fines, capables de capturer des informations complexes sur la donnée cérébrale. Une piste prometteuse pour aider les patients concerne le processus de rééducation suivant un accident vasculaire cérébrale (AVC). En effet, en effectuant des mouvements ou en informant les patients de leur activité cérébrale, il est possible d’aider leur cerveau à s’adapter au déficit neuronal et ainsi de les aider à surmonter leur lésion. Dans ce contexte, les ICO jouent le rôle d'une béquille sur lequel s’appuyer le temps de la rééducation. Dans tout cela, comment devrions-nous contribuer aux systèmes BCI ? Un défi particulier pour les sujets est de créer des patterns cérébraux différenciables au niveau de l'EEG. Pour créer ces patterns, nous nous appuyons sur des tâches cognitives qui modifient le profil d'activité cérébrale. Nous pouvons évoquer l'imagerie motrice des mouvements des membres, une tâche qui consiste à imaginer des mouvements sans les exécuter. Cette tâche particulière est peu familière pour beaucoup et donc en devient complexe à exécuter. Une manière d'aider les sujets à l'effectuer est d'utiliser des retours évocateurs dans le contexte d’une ICO, tels qu’un bras robotique. Le fait de nourrir le sentiment de contrôle sur le bras ainsi que sur les mouvements produits par celui-ci contribue à obtenir des patterns cérébraux plus différenciables. Cependant, en raison des limitations actuelles en ce qui concerne le degré de contrôle permis par les systèmes d’ICO, un contrôle complet d'un bras robotique n'est pas possible. Une solution est de coupler l’ICO avec une autre technologie pour augmenter le degré de contrôle et renforcer le sentiment d’agentivité des sujets sur le bras. Parmi les technologies qui offrent un aperçu de l'intention des sujets, l’oculomètre semble être une solution élégante. L'intégration des deux composants crée un système BCI hybride capable de contrôler le bras de manière intuitive. Cette hybridation a été développée précédemment en tant que preuve de concept, mais l'impact de l'intégration de ces modalités sur le cerveau reste à étudier. En effet, une meilleure compréhension de la manière dont nous devrions façonner l'interaction entre les éléments permettrait de savoir pourquoi nous obtenons de bonnes performances et comment susciter ces patterns discriminants. Le travail de cette thèse consistait en la création d'une plateforme expérimentale entrelaçant les différentes modalités pour établir un contrôle robuste sur le bras. En réalisant un protocole expérimental, nous avons évalué comment définir l'interaction par une analyse approfondie couvrant la performance pure du système, les réponses physiologiques et neurophysiologiques des sujets. Nous avons constaté que la constance était essentielle dans l'interaction et nous avons démontré l'importance du mouvement pour susciter des réponses cérébrales dans ce contexte particulier. Notre travail ouvre la voie à une meilleure compréhension de la dynamique du cerveau dans son contrôle sur les dispositifs externes dans une configuration multimodale. Cette thèse est structurée en cinq chapitres différents couvrant le contexte des ICOs, le développement de la plateforme expérimentale, les résultats du protocole expérimental associés à leur discussion, et enfin une conclusion généraleBrain-machine interfaces (BMIs) left the realm of science fiction in the 1970s with Jacques Vidal's reflection on the feasibility of using electroencephalogram signals as a means of communication between the brain and external devices. During the development of this research field, various approaches have been explored to create a true interface between the brain and a machine. The methods of data acquisition have taken different forms, and with the improvement of computer capabilities and the advent of machine learning, methods to classify brain data have become more refined, capable of capturing complex information from brain data. A promising avenue to assist patients lies in the rehabilitation process following a stroke. By performing movements or providing feedback to patients about their brain activity, it is possible to help their brains adapt to neuronal deficits and aid them in overcoming their impairments. In this context, BMIs act as a support, like crutches, during the rehabilitation period. However, in this context, one challenge is to create differentiable brain patterns at the EEG level. To create these patterns, cognitive tasks that modify brain activity profiles are relied upon. One such task is motor imagery of limb movements, where subjects imagine movements without executing them. This particular task is unfamiliar to many and thus becomes complex to execute. One way to assist subjects in performing it is to provide evocative feedback in the BMI context, such as a robotic arm. Nurturing a sense of control over the arm and its movements helps elicit more differentiable brain patterns. Nevertheless, due to current limitations in the degree of control permitted by BMI systems, full control of a robotic arm is not yet possible. A solution is to couple the BMI with another technology to increase the degree of control and reinforce subjects' sense of agency over the arm. Among the technologies offering insights into subjects' intentions without requiring movement, the eye tracker appears to be an elegant solution. The integration of these two components creates a hybrid BCI system capable of intuitively controlling the arm. This hybridization has been demonstrated as a proof of concept in the BMI field, but the impact of integrating these modalities on the brain remains to be studied. A better understanding of how to shape the interaction between the eye tracker, BMI, and robotic arm would shed light on why good performances are obtained and how to elicit these discriminant brain patterns. The work in this thesis focused on creating an experimental platform that intertwines these different modalities to establish robust control over the arm. Through an experimental protocol, we assessed how to define the interaction through in-depth analysis, covering the system's pure performance and the physiological and neurophysiological responses of subjects. We found that consistency is crucial in the interaction, and we demonstrated the importance of movement in eliciting brain responses in this particular context. Our work paves the way for a better understanding of the brain's dynamics in controlling external devices in a multimodal setup. Additionally, we propose a new framework for controlling a robotic arm using a hybrid BCI. The thesis is structured into five chapters, covering the overall context of BMIs, the development of the experimental platform, the results from the experimental protocol and their discussion, and finally, a general conclusion
44
Righetto, Nicola. "Proprietà degli ammassi di galassie." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18737/.
Full textAbstract:
Gli ammassi di galassie sono sistemi gravitazionalmente legati, tra i più grandi nell'universo. Essi non contengono solo galassie, ma anche gas, comunemente noto come ICM o Intra-Cluster Medium e materia oscura, che costituiscono rispettivamente il 15 e l'80 percento della massa totale, lasciando quindi un "misero" 5 percento alla materia stellare. L'universo è costellato di ammassi galattici, la Via Lattea stessa è parte del Gruppo Locale, che incorpora oltre ad essa M31 (Andromeda), M33 (Triangolo), le Nubi di Magellano e altre galassie più piccole.
Data la natura complessa delle interazioni gravitazionali, la loro enorme dimensione e le peculiarità spettrali, i relativi processi di emissione e la dinamica interna degli ammassi sono accuratamente studiati da molti anni dal punto di vista osservativo e simulativo, dal momento che un'analisi approfondita del comportamento degli ammassi galattici è fondamentale per la realizzazione e la taratura degli attuali modelli cosmologici, dal momento che gli ammassi sono un ottimo indice della distribuzione di materia barionica e oscura nell'universo, la cui comprensione su larga scala permette di ricavare informazioni su come si è evoluto l'universo fino ad oggi e come si comporterà in futuro.
45
Tanriverdi, Gunes. "Arma Model Based Clutter Estimation And Its Effect On Clutter Supression Algorithms." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614360/index.pdf.
Full textAbstract:
Radar signal processing techniques aim to suppress clutter to enable target detection. Many clutter suppression techniques have been developed to improve the detection performance in literature. Among these methods, the most widely known is MTI plus coherent integrator, which gives sufficient radar performance in various scenarios. However, when the correlation coefficient of clutter is small or the spectral separation between the target and clutter is small, classical approaches to clutter suppression fall short.
In this study, we consider the ARMA spectral estimation performance in sea clutter modelled by compound K-distribution through Monte Carlo simulations. The method is applied for varying conditions of clutter spikiness and auto correlation sequences (ACS) depending on the radar operation. The performance of clutter suppression using ARMA spectral estimator, which will be called ARMA-CS in this work, is analyzed under varying ARMA model orders.
To compare the clutter suppression of ARMA-CS with that of conventional methods, we use improvement factor (IF) which is the ratio between the output Signal to Interference Ratio (SIR) and input SIR as performance measure. In all cases, the performance of ARMA-CS method is better than conventional clutter suppression methods when the correlation among clutter samples is small or the spectral separation between target and clutter is small.
46
Acuto, Alberto. "Gas rotation in massive galaxy clusters with axisymmetric potential: models and perspectives for X-ray observations." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13852/.
Full textAbstract:
L'obiettivo della Tesi è lo studio del moto dell’ICM in rotazione in ammassi e fare dei test osservativi per i futuri telescopi in banda X, come ATHENA. Nel lavoro realizzato da Bianconi (2013) studiarono la rotazione del gas in ammassi con un potenziale sferico di NFW utilizzando profili di velocità, valutandone gli effetti sull’ellitticità delle isofote X; nella seconda parte il lavoro si focalizzò nello studio di spettri simulati utilizzando le specifiche del calorimetro di Astro-H. Utilizzando il metodo presentato da Ciotti and Bertin abbiamo espanso il potenziale gravitazionale in forma ellissoidale.Abbiamo assunto uno schiacciamento del potenziale di ∼0.4. Abbiamo ricreato potenziali oblati e prolati per verificare come le diverse geometrie avessero effetti sugli osservabili dell’ICM.In particolare abbiamo considerato aloni di dark matter assialsimmetrici con un profilo di NFW e con un rapporto assiale di ∼0.6 e abbiamo confrontato lo schiacciamento delle isofote con i risultati di Lau (2012). Abbiamo misurato uno schiacciamento medio di ~0.13 per quanto riguarda i modelli non rotanti e di ~0.16 per quanto concerne i modelli rotanti, sia nel caso oblato che prolato. L’ultima parte del lavoro presenta uno studio degli spettri X simulati a diversi raggi dal centro degli ammassi dopo che si è convoluta la brillanza con la risposta strumentale dello spettrometro X-IFU di ATHENA per misurare il moto coerente del gas. Abbiamo misurato uno spostamento Doppler della riga a 6.7 keV dell’ordine di ∼5 eV, corrispondente ad una velocità di ~1000 km/s, per i modelli oblati.Nei modelli prolati invece abbiamo trovato uno spostamento del centroide di ∼15 eV, consistente con una velocità superiore a 2400 km/s. Dopo aver valutato lo spostamento della riga abbiamo analizzato l’allargamento dovuto alla dispersione di velocità. Abbiamo quindi trovato che nelle regioni interne si raggiunge un allargamento di 1000 km/s per i modelli prolati mentre per gli oblati di ~300 km/s.
47
Campitiello, Maria Giulia. "Studio in banda X del processo di stripping nella galassia Jellyfish JO201." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20958/.
Full textAbstract:
Le galassie Jellyfish sono oggetti che mostrano chiari segni dell'azione del fenomeno di ram pressure stripping, in quanto presentano lunghe code di gas estese quanto la dimensione del disco stellare. Una delle più recenti ricerche in questo campo è legata alla survey GAs Stripping Phenomena (GASP), condotta con lo spettrografo a campo integrale MUSE del VLT e volta all'osservazione di 114 galassie soggette a fenomeni di stripping. Questi oggetti si trovano a redshift compreso tra z=0.04-0.07 e sono stati studiati a diverse lunghezze d'onda con l'obiettivo di comprendere in quali condizioni si verifichi la rimozione di gas e come l'efficienza del meccanismo di stripping dipenda dalle proprietà delle galassie. In questo lavoro di tesi ci si è concentrati sull'analisi in banda X della galassia Jellyfish JO201, collocata nell'ammasso Abell 85 e caratterizzata da una velocità estremamente elevata. In particolare è stata indagata per la prima volta la natura della sua emissione in banda X e attraverso un'analisi spettrale di osservazioni Chandra profonde, si è cercato di determinare se l'emissione diffusa osservata sia dovuta o allo stripping di un alone di gas caldo, o al riscaldamento dell'ISM attraverso shock e conduzione da parte dell'ICM, o al raffreddamento dell'ICM sulla galassia. Dalla nostra analisi è emerso che la sola formazione stellare non è in grado di giustificare la luminosità X totale osservata e dunque deve essere presente un ulteriore contributo risultante dall'interazione tra l'ICM e la galassia. Dai nostri dati non è tuttavia possibile discernere con certezza quale dei modelli testati sia il più appropriato per descrivere l'emissione di JO201. Prendendo in considerazione i risultati di due recenti studi che hanno individuato un tasso di formazione
stellare e una frazione di gas molecolare molto maggiori di quelli osservati in altre galassie della stessa massa, proponiamo
un'interpretazione a favore del raffreddamento dell'ICM.
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Baktir, Can. "Simulation-based Comparison Of Some Gmti Techniques." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610514/index.pdf.
Full textAbstract:
With the developing radar technology, radars have been started to be used in the airborne platforms due to the need of fast, accurate and reliable information about the enemies. The most important and tactically needed information is the movements in an observation area. The detection of a ground moving target buried in a dense clutter environment from a moving air platform is a very challenging problem even today. The geometry of the operation, the course of the flight and structure of the clutter are the most effective parameters of this problem.
There are some &ldquoGround Moving Target Indication&rdquo
(GMTI) techniques that have been studied for the last twenty years to overcome this problem. In this thesis, the simulation of some of these techniques in a realistic environment and the comparison of their performances are discussed. In this work, a GMTI simulator is developed to generate the environment containing the clutter and the noise signals, to locate and simulate the targets in this environment and to apply the GMTI techniques on the raw data generated by the simulator. The generation of the clutter signals including the internal clutter motion (ICM) for different types of clutter distributions is one of the most important parts of this thesis. The GMTI techniques being investigated throughout this thesis are &ldquo
Displaced Phase Center Antenna&rdquo
(DPCA), &ldquo
Along-Track Interferometry&rdquo
(ATI), &ldquo
Adaptive DPCA&rdquo
, &ldquo
Pre-Doppler Sigma-Delta STAP&rdquo
and &ldquo
Post-Doppler Sigma-Delta STAP&rdquo
techniques. These techniques are compared according to their clutter suppression and target detection performances under different environmental conditions.
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Idbraim, Soufiane. "Méthodes d'extraction de l'information spatiale et de classification en imagerie de télédétection : applications à la cartographie thématique de la région d'Agadir (Maroc)." Toulouse 3, 2009. http://thesesups.ups-tlse.fr/553/.
Full textAbstract:
Les travaux de cette thèse s'articulent autour de deux axes : la classification pour la cartographie de l'occupation du sol et l'extraction du réseau routier à partir des images satellitaires et aériennes. Le premier axe a pour objectif de proposer une méthode de classification visant à prendre en compte le contexte spatial de l'information contenue dans une image satellitaire. Ainsi, nous avons développé une méthode de classification markovienne, avec recherche de la solution optimale par l'algorithme d'ICM (Iterated Conditional Mode). Cette méthode est paramétrée par un facteur de température qui va permettre, premièrement, de régler la tolérance des configurations désavantageuses dans le processus d'évolution de la classification, et deuxièmement, d'assurer la convergence de l'algorithme en un temps de calcul raisonnable. Parallèlement, nous avons introduit une nouvelle contrainte contextuelle de segmentation dans l'algorithme. Cette contrainte va permettre au fil des itérations d'affiner la classification en accentuant les détails détectés par les contours de segmentation. Le second axe de cette thèse est l'extraction du réseau routier à partir des images satellitaires et aériennes. Nous avons proposé une méthodologie complètement automatique à travers un système d'extraction par blocs qui agissent séparément et indépendamment sur l'image, le premier bloc opère un filtrage directionnel adaptatif, permettant ainsi de détecter les routes dans chaque fenêtre de l'image selon les directions dominantes. Quant au deuxième, il applique une segmentation, puis, il sélectionne les segments représentant des routes selon un critère de forme. Ces deux blocs apportent ainsi un type d'informations différent sur la scène étudiée. Ces résultats sont confrontés puis complétés dans un troisième bloc afin de générer une image du réseau routier. Les performances des méthodologies proposées sont vérifiées à travers des exemples sur des images satellitaires et aériennes. Les résultats expérimentaux sont encourageantsThe work of this thesis focuses around two axes: the classification for the mapping of land cover and the extraction of roads from satellite and aerial images. The first axis aims to propose a method of classification which takes in account the spatial information contained in a satellite image. Thus, we developed a method of Markov classification with the search for the optimal solution by an ICM (Iterated Conditional Mode) algorithm. This method is parameterized by a new factor of temperature, this parameter will allow, first, to rule the tolerance of the disadvantageous configurations during the evolution of the classification process, and secondly, to ensure the convergence of the algorithm in a reasonable time of calculation. In parallel, we introduced a new contextual constraint of the segmentation in the algorithm. This constraint will allow, over the iterations, to refine the classification by accentuating the detected details by the segmentation contours. The second axis of this thesis is the extraction of roads from satellite and aerial images. We proposed a completely automatic methodology with an extraction system in blocks which act separately and independently on the image. The first block operates a directional adaptive filtering, allowing detecting roads in each window of the image according to the dominant directions. The second one applies segmentation, and then selects the segments representing roads according to a criterion of the segment form. These two blocks provide a different type of information on the studied image. These results are then complemented with a third block to generate an image of the road network. The performances of the proposed methodologies are verified through examples of satellite and aerial images. In general, the experimental results are encouraging
50
Tian, Xilan. "Apprentissage et noyau pour les interfaces cerveau-machine." Phd thesis, INSA de Rouen, 2012. http://tel.archives-ouvertes.fr/tel-00735891.
Full textAbstract:
Les Interfaces Cerveau-Machine (ICM) ont été appliquées avec succès aussi bien dans le domaine clinique que pour l'amélioration de la vie quotidienne de patients avec des handicaps. En tant que composante essentielle, le module de traitement du signal détermine nettement la performance d'un système ICM. Nous nous consacrons à améliorer les stratégies de traitement du signal du point de vue de l'apprentissage de la machine. Tout d'abord, nous avons développé un algorithme basé sur les SVM transductifs couplés aux noyaux multiples afin d'intégrer différentes vues des données (vue statistique ou vue géométrique) dans le processus d'apprentissage. Deuxièmement, nous avons proposé une version enligne de l'apprentissage multi-noyaux dans le cas supervisé. Les résultats expérimentaux montrent de meilleures performances par rapport aux approches classiques. De plus, l'algorithme proposé permet de sélectionner automatiquement les canaux de signaux EEG utiles grâce à l'apprentissage multi-noyaux.Dans la dernière partie, nous nous sommes attaqués à l'amélioration du module de traitement du signal au-delà des algorithmes d'apprentissage automatique eux-mêmes. En analysant les données ICM hors-ligne, nous avons d'abord confirmé qu'un modèle de classification simple peut également obtenir des performances satisfaisantes en effectuant une sélection de caractéristiques (et/ou de canaux). Nous avons ensuite conçu un système émotionnel ICM par en tenant compte de l'état émotionnel de l'utilisateur. Sur la base des données de l'EEG obtenus avec différents états émotionnels, c'est-à -dire, positives, négatives et neutres émotions, nous avons finalement prouvé que l'émotion affectait les performances ICM en utilisant des tests statistiques. Cette partie de la thèse propose des bases pour réaliser des ICM plus adaptées aux utilisateurs.