Thèses : « CUB model »

1

Lee, Sang Tae Chemistry Faculty of Science UNSW. « Model studies of the cub-histidine-tyrosine centre in cytochrome c oxidase ». Awarded by:University of New South Wales. Chemistry, 2005. http://handle.unsw.edu.au/1959.4/33251.

Texte intégral

Résumé :

This thesis reports the synthesis and copper coordination chemistry of covalently-linked aryl-imidazole derivatives designed as models for the crosslinked imidazole-phenol sidechains of the His-Tyr cofactor in the CcO. Three new imidazole- (HL1 - HL3) and three new indole- (HL4 - H2L6) containing tripodal ligands were synthesised. The conjugate addition of an imidazole to activated quinone derivatives was developed as a new route to organic models for the Tyr His cofactor. Two monodentate imidazole-aryl, Im-hq(OH)2 and Im-ArOH, and an imidazole-quinone, Im bq were obtained using this route. The X-ray crystal structure of Im-hq(OH)2.EtOH was determined. The route was also used to give new chelating ligands, H2L10 and HL12, containing a cross-linked imidazole-phenol surrogate for the Tyr244-His240 cofactor. Copper complexes of Im-hq(OH)2, Im-bq, Im-ArOH, H2L10-HL12, and HL1-H2L6 were prepared, and the X-ray crystal structures of [Cu(terpy)(Im-bq)][BF4]2 and five other copper complexes were determined. The physiochemical properties of the copper complexes were characterized by FT-IR, UV-Vis-NIR, EPR and (spectro)electrochemical studies. Key results include: the oxidation of Im-ArO- anion affords the semiquinone radical, Im-sq(4OH)(1O??????), in a hydrous solvent. However, the oxidations of neutral Im-ArOH and [Cu(tpa)(Im-ArOH)]2+ produce the corresponding phenoxy radical species that rapidly and reversibly dimerise to give quinol cyclohexadienone, QCHD, dimers. Significantly [Cu(tpa)(Im-sq(4OH)(1O??????))]2+ was EPR silent, perhaps due to antiferromagnetic coupling between the Cu(II) (S=1/2) and semiquinonyl radical (S=1/2) centres. Deprotonation of the hydroquinone in [Cu(tpa)(Im-hq(OH)2]2+ produces the hydroquinone dianion which reduces the Cu(II) centre. The semiquinone radical is coordinatively labile and dissociates from the Cu(I) centre. The biological implications of these results are mentioned.

Styles APA, Harvard, Vancouver, ISO, etc.

2

VilariÃ±o, Daniel R. « Hydrologic calibration of the Cub Run Watershed using the PC version of the Hydrological Simulation Program - FORTRAN (HSPF) ». Thesis, Virginia Tech, 1996. http://hdl.handle.net/10919/44438.

Texte intégral

Résumé :

The Hydrological Simulation Program - FORTRAN (HSPF) in its personal computer version, release 10.10, was used to perform the hydrological simulation of a sub-watershed of the Occoquan River drainage basin. The sub-watershed selected was the Cub Run Watershed located in the northern area of the Occoquan River catchment. A model in the form of a User Control Input (UCI) file was prepared. The Cub Run Watershed was analyzed considering its geological, edaphic and weather characteristics, and segmented accordingly. The model was calibrated to adjust simulated results to observed data. Several calibration runs were executed and a final run was done considering a further segmented watershed. The simulation results were good even when not all the desired data could be found. The annual percent difference between the best calibration run and the observed results was 21.28%. The ten-month percent difference, excluding June and July, was 5.82 %. The first value is a fair result for hydrologic calibration, the second value is an excellent result for the same type of calibration. Additional segmentation did not further improve the results obtained during the best calibration run. Differences in the calibration when considering just a pervious segment or two segments (one pervious and one impervious) could be noted, indicating the importance of considering impervious surfaces for the simulation. HSPF reacted quite logically to variations in the calibration parameters and the results from those variations could be predicted beforehand. In summary, the PC version of HSPF was demonstrated to be a good management tool for the hydrological simulation of this watershed.

Master of Science

Styles APA, Harvard, Vancouver, ISO, etc.

3

Sandoval, Jonathan D. « Mixed Effects Modeling of CAMP Study Data ». Youngstown State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1596453120618372.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

4

Maniyar, Abhishek Sanjay. « From the CMB to CIB : dusty star formation, dark energy and kSZ ». Thesis, Aix-Marseille, 2019. http://theses.univ-amu.fr.lama.univ-amu.fr/190919_MANIYAR_759uunye462vklkb421iixa572jct_TH.pdf.

Texte intégral

Résumé :

Le fond diffus infrarouge (CIB) provient de l'émission IR cumulée des galaxies sur toute l'histoire de l'Univers. Ainsi, le CIB sonde la formation et l'évolution des galaxies sur une grande gamme de décalage vers le rouge. Dans cette thèse, nous utilisons les anisotropies du CIB pour: i) Mesurer l'histoire de la formation des étoiles de l'Univers et le biais effectif des halos de matière noire hébergeant les galaxies CIB jusqu'à un décalage rouge élevé. En utilisant ces mesures, nous calculons la masse typique de ces halos de matière noire, sur une grande gamme de décalage vers le rouge. ii) En utilisant le CIB comme traceur de la structure à grande échelle, la corrélation croisée avec le CMB fournit une sonde alternative de l'énergie noire. Nous montrons que le CIB, extrait sur une grande fraction du ciel, peut fournir la meilleure mesure de l'effet ISW. En utilisant un formalisme matriciel de Fisher, nous prédisons l'amélioration des contraintes sur les paramètres cosmologiques en utilisant l'ISW mesuré avec le CIB. iii) Mesurer le spectre de puissance de l'effet Sunyaev-Zel'dovich cinétique (kSZ) caché dans les données du CMB. Nous améliorons les analyses existantes en combinant les mesures du CIB (de Planck/HFI et Herschel/SPIRE) et les observations de Planck, SPT et ACT pour étendre la gamme des échelles spatiales et des fréquences afin de faciliter la mesure du kSZ. Nous développons un nouveau modèle pour le CIB (pour pouvoir tenir compte des petites échelles spatiales), et modélisons de façon cohérente l'effet SZ thermique (tSZ) et la corrélation CIBxtSZ. Ceci est nécessaire pour séparer avec précision ces différentes composantes dans le spectre de puissance
The CIB is the cumulative infrared emission from all the galaxies throughout cosmic history. Its distinct frequency-redshift dependence allows to probe a large span of redshifts. In this thesis, we utilise the CIB anisotropies detected by the Planck satellite to:i) Measure the star formation history of the Universe and the effective bias of the dark matter halos hosting the CIB galaxies to a high redshift. Using these measurements, we calculate the typical mass of the host dark matter halos for the CIB galaxies at different times.ii) Using the CIB as a tracer of the large scale structure, the cross-correlation with the CMB provides with an alternative probe of the dark energy. We showed that the CIB, extracted on a large fraction of the sky, may provide the best Integrated Sachs Wolf measurement (in terms of S/N ratio). Using a Fisher matrix formalism, we also predict the improvement on the constraints on the cosmological parameters using the ISW measured with this technique. We cross-correlate the best available maps of the CIB and the CMB and find that the dust residuals in the CIB maps are too high to detect the ISW through this method.iii) Measure the kinetic Sunyaev-Zel'dovich (kSZ) power spectrum hidden in the CMB power spectrum. We improve upon the existing analysis by combining the CIB measurements (from Planck/HFI and Herschel/SPIRE) and multi-frequency observations by Planck, SPT and ACT to extend the range of scales and frequencies to facilitate the kSZ measurement. We develop a power spectrum analysis based on physically motivated but simplistic and consistent models of foreground components (CIB, tSZ, tSZxCIB) to accurately separate the kSZ from the CMB

Styles APA, Harvard, Vancouver, ISO, etc.

5

Diez, Canseco Soto Fernando Alonso, Delgado Silvio Enrique Carbajal, Gómez Noemí Maquera, Cardenas Renata Del Rocio Ramos et Coral Javier Andres Chávez. « Natural club ». Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/654687.

Texte intégral

Résumé :

El presente proyecto de investigación tiene como finalidad la implementación de un negocio enfocado en la unificación de la oferta y la demanda de productos saludables selectos por medio de una plataforma online (marketplace), que busca promover y motivar al público a que adopte estilos de vida saludables. Este trabajo de investigación fue realizado en Lima Metropolitana a los NSE “A” Y “B”; teniendo un principal enfoque en quienes tienen perfiles digitales y buscan dinamismo en sus compras. Este modelo de negocio es atractivo, ya que vemos un consumidor interesado en mejorar su alimentación y tener un estilo de vida saludable, pero que no encuentra un lugar que le brinde una oferta unificada de todo lo que busca. Aprovechando que en el mercado existen pocas opciones que vuelvan dinámica la interacción entre ofertantes y demandantes, creamos Natural Club. Es un emprendimiento que permite a los vendedores ofertar sus productos, selectos y de alta calidad, de una manera rápida y sencilla, así como para el consumidor adquirirlos de la misma manera. Encargándose, además, de todos los envíos a domicilio y asegurándose de que cumplan con los altos estándares de salubridad que requiere la coyuntura COVID-19. Para el desarrollo de este proyecto se efectuó un análisis exhaustivo que cubrió lo siguiente: Validación del Modelo de Negocio, Análisis Interno y Externo y Desarrollo de Plan Estratégico. Todo lo realizado se hizo con el objetivo de validar la viabilidad y sostenibilidad del presente proyecto.
The purpose of this entrepreneurial project is to implement a business focused on unifying the supply and demand of select healthy products through an online platform (marketplace), which seeks to promote and motivate our consumers to adopt a healthier lifestyle. This project was carried out in Metropolitan Lima at SES (Socioeconomic status) "A" and “B”. We adopted a main focus on consumers with digital profiles that seek for dynamism in their purchases. This business model is attractive, since we see there are consumers willing to improve their diet and adopt a healthier lifestyle, but they do not find a place that provides a unified offer of everything they are looking for. Taking advantage that there are few options in the market where the interaction between suppliers and demanders is dynamic, we created Natural Club. This entrepreneurial project allows sellers to offer their selected and high quality products, quickly and easily, just as it is for our consumers to acquire them. All this while taking care of the delivery process, with all the sanitation and hygiene measures, due to Covid-19. For the development of this project, we carry out an exhaustive analysis that covered the following: Validation of the Business Model, Internal and External Analysis and the Development of the Strategic Plan. All the analysis was done with the aim of validating the viability and sustainability of this project.
Trabajo de investigación

Styles APA, Harvard, Vancouver, ISO, etc.

6

Diez, Canseco Soto Fernando Alonso, Delgado Silvio Enrique Carbajal, Gómez Noemí Maquera, Cardenas Renata Ramos et Coral Javier Chavez. « Natural club ». Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2002. http://hdl.handle.net/10757/654687.

Texte intégral

Résumé :

El presente proyecto de investigación tiene como finalidad la implementación de un negocio enfocado en la unificación de la oferta y la demanda de productos saludables selectos por medio de una plataforma online (marketplace), que busca promover y motivar al público a que adopte estilos de vida saludables. Este trabajo de investigación fue realizado en Lima Metropolitana a los NSE “A” Y “B”; teniendo un principal enfoque en quienes tienen perfiles digitales y buscan dinamismo en sus compras. Este modelo de negocio es atractivo, ya que vemos un consumidor interesado en mejorar su alimentación y tener un estilo de vida saludable, pero que no encuentra un lugar que le brinde una oferta unificada de todo lo que busca. Aprovechando que en el mercado existen pocas opciones que vuelvan dinámica la interacción entre ofertantes y demandantes, creamos Natural Club. Es un emprendimiento que permite a los vendedores ofertar sus productos, selectos y de alta calidad, de una manera rápida y sencilla, así como para el consumidor adquirirlos de la misma manera. Encargándose, además, de todos los envíos a domicilio y asegurándose de que cumplan con los altos estándares de salubridad que requiere la coyuntura COVID-19. Para el desarrollo de este proyecto se efectuó un análisis exhaustivo que cubrió lo siguiente: Validación del Modelo de Negocio, Análisis Interno y Externo y Desarrollo de Plan Estratégico. Todo lo realizado se hizo con el objetivo de validar la viabilidad y sostenibilidad del presente proyecto.
The purpose of this entrepreneurial project is to implement a business focused on unifying the supply and demand of select healthy products through an online platform (marketplace), which seeks to promote and motivate our consumers to adopt a healthier lifestyle. This project was carried out in Metropolitan Lima at SES (Socioeconomic status) "A" and “B”. We adopted a main focus on consumers with digital profiles that seek for dynamism in their purchases. This business model is attractive, since we see there are consumers willing to improve their diet and adopt a healthier lifestyle, but they do not find a place that provides a unified offer of everything they are looking for. Taking advantage that there are few options in the market where the interaction between suppliers and demanders is dynamic, we created Natural Club. This entrepreneurial project allows sellers to offer their selected and high quality products, quickly and easily, just as it is for our consumers to acquire them. All this while taking care of the delivery process, with all the sanitation and hygiene measures, due to Covid-19. For the development of this project, we carry out an exhaustive analysis that covered the following: Validation of the Business Model, Internal and External Analysis and the Development of the Strategic Plan. All the analysis was done with the aim of validating the viability and sustainability of this project.
Trabajo de investigación

Styles APA, Harvard, Vancouver, ISO, etc.

7

Diez, Canseco Soto Fernando Alonso, Delgado Silvio Enrique Carbajal, Gómez Noemí Maquera, Coral Javier Chavez et Cardenas Renata Del Rocio Ramos. « Natural club ». Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/654687.

Texte intégral

Résumé :

El presente proyecto de investigación tiene como finalidad la implementación de un negocio enfocado en la unificación de la oferta y la demanda de productos saludables selectos por medio de una plataforma online (marketplace), que busca promover y motivar al público a que adopte estilos de vida saludables. Este trabajo de investigación fue realizado en Lima Metropolitana a los NSE “A” Y “B”; teniendo un principal enfoque en quienes tienen perfiles digitales y buscan dinamismo en sus compras. Este modelo de negocio es atractivo, ya que vemos un consumidor interesado en mejorar su alimentación y tener un estilo de vida saludable, pero que no encuentra un lugar que le brinde una oferta unificada de todo lo que busca. Aprovechando que en el mercado existen pocas opciones que vuelvan dinámica la interacción entre ofertantes y demandantes, creamos Natural Club. Es un emprendimiento que permite a los vendedores ofertar sus productos, selectos y de alta calidad, de una manera rápida y sencilla, así como para el consumidor adquirirlos de la misma manera. Encargándose, además, de todos los envíos a domicilio y asegurándose de que cumplan con los altos estándares de salubridad que requiere la coyuntura COVID-19. Para el desarrollo de este proyecto se efectuó un análisis exhaustivo que cubrió lo siguiente: Validación del Modelo de Negocio, Análisis Interno y Externo y Desarrollo de Plan Estratégico. Todo lo realizado se hizo con el objetivo de validar la viabilidad y sostenibilidad del presente proyecto.
The purpose of this entrepreneurial project is to implement a business focused on unifying the supply and demand of select healthy products through an online platform (marketplace), which seeks to promote and motivate our consumers to adopt a healthier lifestyle. This project was carried out in Metropolitan Lima at SES (Socioeconomic status) "A" and “B”. We adopted a main focus on consumers with digital profiles that seek for dynamism in their purchases. This business model is attractive, since we see there are consumers willing to improve their diet and adopt a healthier lifestyle, but they do not find a place that provides a unified offer of everything they are looking for. Taking advantage that there are few options in the market where the interaction between suppliers and demanders is dynamic, we created Natural Club. This entrepreneurial project allows sellers to offer their selected and high quality products, quickly and easily, just as it is for our consumers to acquire them. All this while taking care of the delivery process, with all the sanitation and hygiene measures, due to Covid-19. For the development of this project, we carry out an exhaustive analysis that covered the following: Validation of the Business Model, Internal and External Analysis and the Development of the Strategic Plan. All the analysis was done with the aim of validating the viability and sustainability of this project.
Trabajo de investigación

Styles APA, Harvard, Vancouver, ISO, etc.

8

Cantanhede, David Alberto Grangeiro. « Custo unitário básico (CUB) : verificação e validação do modelo de cálculo ». reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2003. http://hdl.handle.net/10183/3458.

Texte intégral

Résumé :

O custo unitário básico (CUB), foi criado em função da Lei n° 4.591 (BRASIL, 1964), que encarregou a Associação Brasileira de Normas Técnicas (ABNT), através do Banco Nacional de Habitação (BNH), de definir critérios e normas para cálculo de custos unitários de construção pelos Sindicatos das Indústrias da Construção Civil (SINDUSCON) nos Estados da Federação, para uso dos incorporadores imobiliários nas tratativas iniciais quando da viabilização junto ao Sistema Financeiro de Habitações. Com a publicação da Norma Brasileira NB 140 (ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS, 1965), ficou definido a metodologia de cálculo dos CUB para projetos-padrão de prédios habitacionais. A finalidade destes CUB é auxiliar na avaliação dos custos de incorporações imobiliárias, antes do lançamento, quando os incorporadores não dispõem dos projetos completos. A metodologia de cálculo destes CUB sofreu uma única reformulação ao longo destes quase quarenta anos, quando da edição da NBR 12.721 (ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS, 1992). Em 1999, recebeu anexo complementar, que não fez qualquer atualização na metodologia de cálculo dos CUB, apenas estendeu a apuração destes custos para edifícios comerciais, galpões industriais e casas populares Este trabalho realizou a verificação e validação do modelo de cálculo dos CUB para prédios habitacionais, fazendo comparações entre os valores apurados pela técnica recomendada na Norma e os obtidos diretamente nos orçamentos discriminados que deram origem à metodologia de cálculo dos CUB, utilizando preços unitários de insumos no período de janeiro de 1993 a dezembro de 2000. Ao final concluiu-se que o modelo de cálculo dos CUB necessita de uma profunda reformulação para readquirir a propriedade fundamental de sua caracterização que é a de substituir o cálculo dos custos com o uso do orçamento discriminado dos projetos-padrão.

Styles APA, Harvard, Vancouver, ISO, etc.

9

Weideman, Lisa. « Investigating the Cuban Revolución Agricola as a model for the post-'peak oil' age ». Thesis, Nelson Mandela Metropolitan University, 2015. http://hdl.handle.net/10948/4998.

Texte intégral

Résumé :

In this dissertation, the socio-ecological transformations that occurred during Cuba’s Revolución Agrícola are explored, against the backdrop of the historical subalternisation of the country as a consequence of Spanish and American imperialism, and in relation to the continuing subalternisation of the country and its people through the neoliberal mass media. To contextualize such exploration, the origins of large-scale privatization of common land, and the subsequent process of urbanization in the West, are investigated, before Cuba’s similar developmental path – as a result of Spanish colonialism, U.S. imperialism, and communist influence – is detailed. Thereafter, the way in which Cuba established an alternative food paradigm, characterised by local, communal, and urban production during the country’s ‘Special Period’ in the 1990s, is discussed, with a view to illustrating how this eco-socialist model of food production, in both rural and urban areas, led to new relations between people and nature. This Cuban model is then posited as a socio-ecologically sustainable model of food production, deserving of the attention of communities around the world, who seek to gain a degree of autonomy from neoliberal agribusiness. Conversely, the efforts of mainstream neoliberal mass media to silence the immensely positive characteristics of the revolution are also investigated, and framed in terms of the historical subjugation of Cuban voices in the American mass media, and the contemporary marginalisation of the country and its people in the neoliberal mass media. Finally, the dissertation concludes by examining the alternative media response, on the part of several prominent Cubans and those sympathetic to their cause, to bring attention to the value of the socio-ecological transformations that have occurred on the island, against the backdrop of various theorisations of the importance of alternative media platforms as a radical counterforce to neoliberal mass media hegemony.

Styles APA, Harvard, Vancouver, ISO, etc.

10

Bräutigam, Carsten G. « A model-free voting approach to cue integration ». Doctoral thesis, KTH, Numerical Analysis and Computer Science, NADA, 1998. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2677.

Texte intégral

Résumé :

Vision systems, such as "seeing" robots, should be able tooperate robustly in generic environments. In this thesis, weinvestigate certain aspects of how these demands of robusmessof a systems approach to vision could be met.

Firstly, we suggest that robustness can be improved byfusing the variety of infor mation offered by the environment,and, therefore, we investigate the effectiveness of using thecoincidence of multiple cues. Secondly, we are concerned aboutthe use of coarse algorithms. Even though the environmentprovides much information, it is neither necessary nor possibleto extract all information available. Therefore, we will showthat coarse algorithms will suffice for certain problems. Toinvestigate the effectiveness of using the coincidence ofmultiple cues, we perform a series of experiments on detectingplanar surfaces in binocular images. These experiments arebased on two schemes of a somewhat different character.

The first one is ahyporhesls-and-testscheme that incorporates the cues ina certaln order and hence, by design, imposes a ranking ofthem. The general idea is to use arbitrary cues exploitinglocal image data to get an idea about whether the model (aplanar surface) is seen in the image and at which location itis found. If one or more cues strongly indicate a certaininstance of a model, then this observation serves as ahypothesis to be tested by other cues to support or reject thishypothesis. In comparison to the cues used for hypothesisgeneration, those used for hypothesis testing should be morereliable and can also have a higher computational complexitysince they are only employed when needed.The general idea of the second scheme is to first use asimple, and quick cue exploiting local image data toget anidea of where in the image the model (a planar surface) couldbe found. After this initial localization step, all cues thatcan be computed are gathered and allowed tovorefor the occurrence of the model in the hypothesizedregion. The initialization of this approach is a hypothesisforming step, similar to that of the hypothesis-and-testapproach This step though, is much weaker because it onlyindicates a region in the images where to look. The approachallows direct fusion of incommensurable cues, such as intensityand surface orientation. Generally, it can be regarded as aless restrictive approach than the hypothesis-and-test approach. We propose that coarse algorithms may be motivated from arobustness and flexibtl hy point of view. Our experimentsdemonstrate that there is support for this claim, at least, forsome tasks of relevante, such as those of finding planarsurfaces, or similar simple models.

Keywords:computer vision multiple cues. cueintegration, consensus voting, coincidence, coarse method,robustness. grouping and segmentation, plane detection

Styles APA, Harvard, Vancouver, ISO, etc.

11

Bräutigam, Carsten G. « A model-free voting approach to cue integration / ». Stockholm : Tekniska högsk, 1998. http://www.lib.kth.se/abs98/brau0918.pdf.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

12

Galesi, Fernanda Libardi. « Controle de estímulos e respostas ao estresse no modelo de recaída ao álcool \"cue-induced ». Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/47/47132/tde-20102014-151332/.

Texte intégral

Résumé :

O modelo de recaída cue-induced é comumente utilizado para o estudo da recaída ao uso de drogas causada pela exposição dos animais à estímulos ambientais previamente associados à droga. Quando o álcool é a droga a ser estudada, um estímulo contextual (S) e um reforçador condicionado (Sr) são os estímulo frequentemente associados ao seu consumo. Embora esse modelo seja consolidado na área, sua validade de constructo vem sendo criticada; entre essas críticas estão o fato de que apenas o Sr adquire controle sobre a resposta de procura pela droga, além de que pouco se sabe sobre os sistemas neurais envolvidos nessa recaída. Portanto, este trabalho teve como objetivo principal avaliar o papel dos processos operantes no procedimento do modelo de recaída ao uso de álcool cue-induced, além de avaliar a participação de sistemas neurais ligados ao estresse nessa recaída. Ainda, este trabalho teve como objetivo melhorar o procedimento desse modelo animal. Os experimentos apresentados no Capítulo 1 tiveram como objetivo melhorar o controle exercido por S sobre a recaída, aprimorando o modelo, além de avaliar processos de aprendizagem associativa que ocorrem nesse modelo. Dois experimentos foram realizados para atingir esses objetivos. No primeiro, dois grupos de ratos foram treinados no modelo cue-induced, porém um grupo foi treinado sob o esquema de razão fixa 1 (FR1) e o outro sob o esquema de razão variável 5 (VR5). No segundo experimento, os ratos foram treinados nesse modelo, porém os estímulos S e Sr foram apresentados separadamente na fase de treino. Os resultados desses experimentos indicaram que o treino separado foi eficaz em melhorar o controle de S sobre a recaída e que a troca de esquema de reforço não foi eficaz para aumentar esse controle. Os resultados também mostraram que quando os estímulo são treinados em conjunto o Sr sombreia o S e quando eles são treinados separadamente e testados como um composto ocorre somação. Os experimentos apresentados no Capítulo 2 tiveram o objetivo de avaliar se eixos neurais ligados à resposta ao estresse estariam envolvidos na recaída mimetizada pelo modelo cue-induced. Ratos Marchigian Sardinian Preferring (msP) e Wistars foram treinados no modelo cue-induced e, na fase de testes, Antalarmin, Metirapona e corticosterona (CORT) foram injetados i.p. nos animais. Os resultados mostraram que o Antalarmin (dose 20 mg/kg) bloqueou a recaída em ambas as cepas, que a Metirapona (doses 50 mg/kg e 100 mg/kg) bloqueou a recaída nos ratos msP e apenas a dose de 100 mg/kg bloqueou a recaída nos ratos Wistars e que a CORT não teve efeito na em nenhuma das cepas. Esses resultados mostraram o procedimento do modelo de recaída cue-induced pode ser aprimorado principalmente no que tange ao controle do S sobre a recaída. Os resultados também mostraram que respostas ao estresse influenciam a recaída observada nesse modelo
The cue-induced relapse model is a model commonly used to study relapse caused by environmental stimuli. In its procedure, the environmental stimuli are usually a contextual stimulus (S) and a conditioned reinforcer (Sr). Although this model is extensively used its construct validity has been criticized. Between these critics are the fact that only the Sr controls the drug seeking responses because this stimulus overshadows the S, in addition to the fact that little is known about the neural systems that are involved in cue-induced relapse. Therefore, this work had as main purpose to evaluate operant process in the alcohol cue-induced relapse and evaluate the role of stress neural systems in this relapse. In adition, this work had also the purpose to improve the animal model procedure. The experiments presented in Chapter 1 had the purpose to increase the control exercised by S over relapse and to evaluate associative learned in this model procedure. Two experiments were conducted to achieve this goal. In the first one two groups of rats were trained in the cue-induced relapse model but one group was trained under the fixed ratio 1 (FR1) and the other under the variable ratio 5 schedule (VR5). In the second experiment, rats were trained in the cue-induced procedure, but the stimuli S and Sr were presented separately during the training phase. The results showed that separate training was effective in increase the S control over relapse and that changing the schedule of reinforcement was not effective in increase this control. Also, results showed that summation occurred when the stimuli are trained separately and tested as a compound. The experiments presented in Chapter 2 had the purpose to evaluate if neural axis related to organic stress responses are involved in cue-induced alcohol relapse. Also, it was investigated if the HPA is involved in relapse. Marchigian Sardinian Preferring (msP) rats and Wistars rats were trained in the cue-induced model and during the test phase Antalarmin, Metyrapone and corticosterone (CORT) were injected i.p. in the animals. The results showed that Antalarmin (dose 20 mg/kg) blocked relapse produced by environmental cues in both rats strains, Metyrapone (doses 50 mg/kg and 100 mg/kg) blocked relapse in msP rats and only dose 100 mg/kg blocked relapse in Wistar rats and CORT had no effect on relapse in both strains. These results showed that the procedure used in the cue-induced model can be improved mainly in regard to the control from S over relapse. The results also showed that stress responses influence relapse in this model

Styles APA, Harvard, Vancouver, ISO, etc.

13

Claici, Sebastian. « Aggregation for modular robots in the pivoting cube model ». Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107376.

Texte intégral

Résumé :

Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 61-66).
In this thesis, we present algorithms for self-aggregation and self-reconfiguration of modular robots in the pivoting cube model. First, we provide generic algorithms for aggregation of robots following integrator dynamics in arbitrary dimensional configuration spaces. We describe solutions to the problem under different assumptions on the capabilities of the robots, and the configuration space in which they travel. We also detail control strategies in cases where the robots are restricted to move on lower dimensional subspaces of the configuration space (such as being restricted to move on a 2D lattice). Second, we consider the problem of finding a distributed strategy for the aggregation of multiple modular robots into one connected structure. Our algorithm is designed for the pivoting cube model, a generalized model of motion for modular robots that has been effectively realized in hardware in the 3D M-Blocks. We use the intensity from a stimulus source as a input to a decentralized control algorithm that uses gradient information to drive the robots together. We give provable guarantees on convergence, and discuss experiments carried out in simulation and with a hardware platform of six 3D M-Blocks modules.
by Sebastian Claici.
S.M.

Styles APA, Harvard, Vancouver, ISO, etc.

14

Sollom, Ian Fraser. « Bayesian analysis of the CMB beyond the concordance model ». Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609814.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

15

Porras, Pérez Antonio Reyes. « Multi-cue image integration for cardiac tissue characterization ». Doctoral thesis, Universitat Pompeu Fabra, 2015. http://hdl.handle.net/10803/296796.

Texte intégral

Résumé :

Una caracterización precisa y completa del tejido cardíaco es esencial para el diagnóstico y tratamiento de problemas cardíacos. Para caracterizar la función cardíaca desde diferentes perspectivas, en la práctica clínica, se adquieren grandes cantidades de datos de distinta naturaleza sobre un mismo paciente, proporcionando información útil para la evaluación del corazón. Aunque los distintos datos obtenidos de cada paciente se suelen analizar por separado para evaluar la función cardíaca desde diferentes perspectivas, la combinación efectiva de esta información heterogénea podría ser útil para tener una mejor visión de la anatomía y la función cardíaca. El objetivo principal de esta tesis es el desarrollo de métodos para integrar imágenes e información de distinta naturaleza para una caracterización del tejido cardíaco más completa y precisa.
An accurate and complete cardiac tissue characterization is essential to diagnose and treat heart problems. To characterize cardiac function from different perspectives, large amounts of data of different nature from the same patient are acquired in clinical practice, providing information that is useful for heart assessment. Although the different data obtained from each patient are often analyzed separately to assess cardiac function from different perspectives, the effective combination of this heterogeneous information may be useful for a better insight into heart anatomy and function. The main objective of this thesis is to develop methods to integrate images and information of different nature for a more complete and accurate cardiac tissue characterization.

Styles APA, Harvard, Vancouver, ISO, etc.

16

MacKenzie, David Bruce Hollis. « The culture cube| A three-dimensional model of political thought ». Thesis, Regent University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1601359.

Texte intégral

Résumé :

At any given time, the political culture exhibits various polarized tensions— the progressive versus the conservative sentiment; the social versus the individual perspective; the religious versus the secular point-of-view. Few people— whether scholars or ordinary citizens— doubt that each aspect is potentially influential as a factor on the politico-cultural landscape. Yet, while descriptions of each are many and relatively consistent, formal modular integrations and expressions are relatively few— and may not always be value-neutral. Recognizing that the ubiquitous left-right spectrum may need additional dimension, this thesis presents a model that reflects the familiar aspects of left and right, but adds two more spectra of ideological preference. The net result is a three-dimensional form and metaphor that is easily apprehended, and can aid in providing a quick political classification. Schematically rendered, this metaphor takes the form of a cube. Utilizing survey responses from urban and rural Alberta, Canada, this thesis hopes to provide the reader with a meaningful system of political categorization that may more thoroughly encompass, without partisan pejorative overtones, tendencies as disparate as religious communalism and libertarian secularism.

Styles APA, Harvard, Vancouver, ISO, etc.

17

Karlsson, Linnea. « A Division-of-Labor Hypothesis : Adaptations to Task Structure in Multiple-Cue Judgment ». Doctoral thesis, Umeå : Department of Psychology, Umeå University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1327.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

18

Ramamonjisoa, Fidy Andriamanankasina. « Modelling radio galaxies in the Millennium simulation : SKA/MeerKAT sources and CMB contaminants ». University of the Western Cape, 2010. http://hdl.handle.net/11394/2944.

Texte intégral

Résumé :

Magister Scientiae - MSc
We investigate the modelling of radio galaxies within a semi-analytic framework in the Millennium Simulation of the Virgo Consortium. The aim is to assess the radio sources contamination of Sunyaev-Zeldovich (SZ) signatures of clusters of galaxies in Cosmic Microwave Background (CMB) experiments. The modelling is also relevant to the Karoo Array Telescope (MeerKAT) and the Square Kilometre Array (SKA) science. The semi-analytical model consists of N-body simulation, the Millennium Run to trace the merger history of dark matter haloes within the Λ Cold Dark Matter (ΛCDM) cosmology and a follow up of the black hole accretion history and Active Galactic Nuclei (AGN) evolution. We study the growth of the supermassive black hole (SMBH) in galaxy centres and determine the black hole mass accretion conversion into radiation. We identify a model which matches observed radio luminosity function. We describe a model of observed sample of radio surveys at a given frequency and a flux density limit to obtain a model of radio luminosity function (space density of radio sources as a function of redshift) that we compare with our simulated data. We determine the redshift distribution of radio galaxies (FRI), blazars and radio quasars (FRII) in the simulation. We focus the modelling on flat spectrum population of blazars since their jets are collimated towards us and thus constitute the most potential contaminants of the CMB. We determine the spatial and density distribution of radio sources in clusters with a virial mass Mvir 2 1014h−1M and then compute the temperature fluctuations and fluxes produced by these cluster radio sources. Our main results include: the model provides a reasonable match within uncertainties with the model obtained by Dunlop & Peacock (1990) [39] using their best fit of radio luminosity function at redshift z . 0:3. The model underestimates the number of radio sources at high redshift z & 1. Radio sources are concentrated around the centre of clusters with a maximum density at r . 0:1r200 where r200 is the radius within which the density is 200 times the critical density. Radio sources are more concentrated in low mass clusters. The model predicts a surface density profile of radio sources with luminosity P 1023 W.Hz−1 at 1.4 GHz (z . 0:06) in agreement with that of Lin & Mohr (2007) [58] at r . 0:1r200 but underestimates the density in the outskirts of the clusters. BL Lacs and FRI radio galaxies produce non negligible contamination at redshift z . 0:1. They produce a mean temperature fluctuation 4:5 K at redshift z 0:01 which can be at the same level as the kinetic SZE signal produced by the cluster. Blazars constitute potential contaminant of the thermal SZ effect at redshift z 1:0 and z 1:5 at 145 GHz where they produce a mean temperature 300 K - 350 K for an average mass of the cluster.
South Africa

Styles APA, Harvard, Vancouver, ISO, etc.

19

Reichert, Richard P. « A systemic model of leadership development for the church in Cuba ». Online full text .pdf document, available to Fuller patrons only, 2003. http://www.tren.com.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

20

Geoffray, Marie Laure. « Culture, politique et contestation à Cuba (1989-2009) : une sociologie politique des modes non conventionnels d'action collective en contexte autoritaire ». Paris, Institut d'études politiques, 2010. http://buadistant.univ-angers.fr/login?url=https://www.dalloz-bibliotheque.fr/pvurl.php?r=http%3A%2F%2Fdallozbndpro-pvgpsla.dalloz-bibliotheque.fr%2Ffr%2Fpvpage2.asp%3Fpuc%3D5442%26nu%3D110.

Texte intégral

Résumé :

Fondée sur onze mois d’enquête de terrain à Cuba, cette thèse a un objectif double : comprendre comment des dynamiques contestataires émergent et perdurent sur le long terme sans faire l’objet d’une répression sévère, à l’instar des dissidents ; et saisir ce que l’existence de cette contestation tolérée nous apprend sur les modes d’exercice du pouvoir dans un tel contexte. Les pratiques contestataires sont ici problématisées comme intentionnelles, collectives et conflictuelles et étudiées de façon relationnelle, afin de restituer les logiques d’interaction entre autorités socialistes et collectifs contestataires. A partir de cette démarche, ce travail montre que les pratiques contestataires sont partiellement tolérées par les autorités car elles ne sont ni ppositionnelles ni directement politiques. Elles s’articulent, quoique de façon critique et parfois subversive, aux normes de la socialisation révolutionnaire, qui fondent les cadres légitimes de perception de la réalité. Elles s’inscrivent aux marges du champ culturel à travers l’élaboration d’un répertoire hybride, entre action collective et création culturelle. Ces ambiguïtés permettent aux collectifs de négocier des espaces d’action selon les échelles de gouvernement. Les autorités leur octroient ces espaces car ils permettent la régulation et la contention de la contestation, à travers une coercition fondée sur l’incertitude et l’arbitraire. Cette étude met ainsi à jour la plasticité du régime cubain et incite, au-delà de ce cas spécifique, à substituer aux analyses en termes d’érosion de la capacité à gouverner l’observation des modes d’adaptation et de transformation des régimes autoritaires
This dissertation is based on eleven months of fieldwork in Cuba. Its objective is twofold. First, understand how contentious dynamics have emerged and endured through time without undergoing severe repression, like dissident movements. Secondly, grasp what the existence of this tolerated contention tells us about the way power is wielded in such a context. Contentious practices are here defined as intentional, collective and conflictive. This study focuses on the relationships between contentious movements and State authorities, in order to understand the logics of their interactions. Elaborating on this, this dissertation shows that contentious practices are partly tolerated by the authorities because they are neither oppositional nor directly political. They are linked up, though in a critical and sometimes subversive way, to the norms of the revolutionary socialization, on which are based the legitimate frameworks for perception of reality. Contentious movements are situated at the margins of the cultural field, thanks to the creation of a hybrid repertoire: between collective action and cultural creation. That ambiguity allows them to negotiate space for action, according to the levels of government. Authorities grant them some space because that this allows for the regulation and containment of contention, through the use of a specific mode of coercion, which is based on uncertainty and arbitrariness. This study also brings to light the plasticity of the Cuban regime and invites us, beyond that specific case, to substitute analyses in terms of erosion of governing capacity for analyses of the modes of adaptation and transformation of authoritarian regimes

Styles APA, Harvard, Vancouver, ISO, etc.

21

Castillo, Gonzales Diameth Milagros, De la Cruz Lisa Sarita Andrea Flores et Ponce de León Percy Morales. « Club de 4 Patas ». Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2018. http://hdl.handle.net/10757/625024.

Texte intégral

Résumé :

El desarrollo del presente trabajo se genera por la necesidad que tienen las personas de encontrar una veterinaria en la ciudad de Lima que atienda las 24 horas del día por que durante la madrugada es dificil encontrar a alguien que te ayude si tu mascota tiene un problema de salud, generando una gran preocupación para aquellas personas que cuenten con una. Este compañero de 4 patas (Perro y gato) se ha convertido en un integrante más para todas las familias y todos buscan su bienestar. Debido a ello, se creó “El Club de 4 patas”, una idea de negocio que ofrecerá el servicio de asistencia médica las 24 horas del día a aquellas personas que cuenten con una mascota permitiendole ubicar al veterinario más cercano y darle solución a la emergencia que tengan con ellos en el momento que lo necesiten. Este servicio será ofrecido a través de una webApp, de lunes a domingo, las 24 horas del día y se desarrollará en primera instancia en los siguientes 3 distritos Surco, San Borja y Miraflores. Para esto, la empresa gestionará el contacto del cliente con el veterinario más cercano al consumidor final mediante la webApp. The development of the present work comes because of the needs that people have on finding a veterinary hospital in Lima that has an open door policy of 24/7, since is very difficult to find somebody who can help you with your pet if they have an illness on the early morning hours or in the middle of the night. This four-legged partner (cat or dog) has become in another member of any of the families that they are part of, and everybody is looking out for them and their health. So, due to this concern, we have created “ El Club de 4 Patas” or “ The Four-Legged Club”, a business idea that will offer medical assistance 24 hours a day to those people who have a pet and that will give them the ease and peace of finding a veterinarian close to them so they can attend to their needs in the moment they have them. This service will be offer trough out a webApp, from Monday to Sunday, and all day around. The service will be given in its beginning in the districts of Surco, San Borja and Miraflores. In order to accomplish this goal, the company will patch the client with the veterinarian closest to their home using this webApp.
Trabajo de investigación

Styles APA, Harvard, Vancouver, ISO, etc.

22

Ivory, Adrienne Holz. « Sexual Orientation : A Peripheral Cue in Advertising ? » Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/32151.

Texte intégral

Résumé :

Although advertising featuring gay male and lesbian models can be an effective means of targeting the significant gay and lesbian market, few empirical studies examine how consumers respond to gay-themed advertisements. To address the absence of message-processing research dealing with heterosexual responses to gay-themed advertising, this thesis examines how sexual orientation of model couples featured in magazine advertisements affects heterosexual viewersâ responses using the elaboration-likelihood model as a guiding framework. A 3x2x2x3 experiment tested the effects of model couplesâ sexual orientation (heterosexual, gay male, or lesbian), argument strength (strong or weak), involvement (high or low), and participantsâ attitudes towards homosexuality (high, medium, or low) on White heterosexual participantsâ attitudes toward the couple, attitudes toward the advertisement, attitudes toward the brand, attitudes toward the product, purchase intentions, and recall.

Results indicate that heterosexual consumers were accepting of ads with lesbian portrayals.Â Participants showed more negative attitudes toward gay male portrayals, but attitudes towards heterosexual and lesbian ads were similar. This effect was moderated by participantsâ attitudes toward homosexuals. Regarding message processing, low involvement consumers showed more negative attitudes toward homosexual portrayals than toward heterosexual portrayals, providing some indication that modelsâ sexual orientation in ads may have served as a peripheral cue negatively impacting attitudes toward the couple and ad in situations where elaboration is low. However, such effects on attitudes toward couples and ads did not appear to carry over to attitudes toward the brand and product, purchase intentions, or recall. Implications, limitations, and areas for future research are also discussed.
Master of Arts

Styles APA, Harvard, Vancouver, ISO, etc.

23

Hradský, Martin. « Odpružení kabiny nákladního vozidla ». Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400517.

Texte intégral

Résumé :

The diploma thesis, which belongs to the area of vehicle dynamics, deals with the issue of suspension of trucks cabins. In particular, it focuses on the suspension of a race truck cab such as the Rally Dakar. Includes an overview of truck suspension (especially cabs), driving comfort assessment methods and the impact of vibration on human. To verify the suitability of using different cab suspension concepts, a multibody model was built in program MSC ADAMS. Suitable primary suspension has been found appropriate for this model. Cab suspension was tested for driving safety, but first for driving comfort.

Styles APA, Harvard, Vancouver, ISO, etc.

24

Bordignon, Paolo. « Valutazione delle preferenze e customer satisfaction : un approccio basato sulla conjoint analysis e sui modelli mistura ». Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424627.

Texte intégral

Résumé :

Preference evaluation methods like Conjoint Analysis and Choice Based Conjoint Analysis have been described as the most used methods among marketing operators (Green and Srinivasan, 1990; Green et al., 2001). The concept of preference evaluation is linked to the Customer Satisfaction measurement with the latter a direct measure of preferences and expectations (Grigoroudis and Siskos, 2002). Within the choice of a suitable statistical model, Combination Uniform Binomial (CUB) models have been developed with the aim to explain the psychological mechanism underlying the choice process (D’Elia, 2003; D’Elia and Piccolo, 2005). Several model extensions have been developed (Iannario, 2013) in order to take into account the multifaceted individual choice behaviour. Within the framework of preference evaluation and Customer Satisfaction measurement, CUB models are suited to many real cases (Piccolo and D’Elia, 2008; Corduas et al., 2009; Cicia et al., 2010; Iannario et al., 2012; Iannario and Piccolo, 2012; Bordignon and Salmaso, 2013; Arboretti and Bordignon, 2014), confirming CUB models as useful and theorem based (Iannario and Piccolo, 2014) statistical models. Feeling and Uncertainty are supposed to be latent variables involved in the choice process of an item. The interpretation is very flexible with the “feeling” parameter explaining for the meaning (satisfaction, preference or attention) the measurement scale is supposed to measure. The CUB model extension involving the introduction of covariates to explain feeling and uncertainty latent variables is the main extension applied to an integrated approach.
I metodi di valutazione delle preferenze come la Conjoint Analysis e la Choice Based Conjoint Analysis vengono descritti come i metodi più usati dagli addetti ai lavori nel marketing (Green e Srinivasan, 1990; Green et al., 2001). Il concetto di valutazione delle preferenze è collegato a quello di misurazione della Customer Satisfaction dove questa ultima è considerata una misura diretta di preferenza ed aspettativa (Grigoroudis e Siskos, 2002). Nel valutare la scelta di un modello statistico appropriato, i modelli CUB (Combination Uniform Binomial) sono stati sviluppati allo scopo di spiegare il meccanismo psicologico alla base del processo di scelta (D’Elia, 2003; D’Elia e Piccolo, 2005). Molte sono state le estensioni del modello sviluppate (Iannario, 2013) al fine di spiegare comportamenti diversi coinvolti nel processo di scelta. In riferimento alla valutazione delle preferenze e alla misurazione della Customer Satisfaction, i modelli CUB si sono rivelati adatti in molti casi reali (Piccolo e D’Elia, 2008; Corduas et al., 2009; Cicia et al., 2010; Iannario et al., 2012; Iannario e Piccolo, 2012; Bordignon e Salmaso, 2013; Arboretti e Bordignon, 2014), confermandoli come uno strumento utile oltre che basato su una teoria dimostrata (Iannario e Piccolo, 2014). Le variabili latenti feeling e uncertainty si ipotizza siano coinvolte nel processo di scelta di un item. L’interpretazione è molto flessibile, infatti il parametro “feeling” è collegato al costrutto (soddisfazione, preferenza o attenzione) che si intende misurare. La principale estensione del modello CUB presa in considerazione è quella che prevede l’introduzione di covariate al fine di spiegare le variabili latenti feeling e uncertainty. Lo scopo principale della Tesi è mostrare come l’applicazione dei modelli CUB e della Conjoint Analysis danno un valore aggiunto rispetto alla applicazione della sola Conjoint Analysis. Un’analisi più approfondita degli studi sulla valutazione delle preferenze ha permesso di identificare il secondo scopo della ricerca: l’applicazione dei modelli CUB successivamente ad uno studio di Conjoint Analysis permette di ottenere maggiori informazioni sulla percezione dei rispondenti? Allo scopo di ottenere una misura della Customer Satisfaction, i modelli CUB applicati alle valutazioni di soddisfazione di alcune scuole di sci ha mostrato che attraverso una analisi a due fasi è stato possibile identificare rilevanti covariate coinvolte nel ranking delle migliori scuole. Successivamente è stata condotta una survey sul packaging alimentare. L’applicazione dei modelli CUB ad alcuni aspetti di soddisfazione sul packaging alimentare ha rivelato il feeling a l’uncertainty dei rispondenti e ha gettato luce su importanti caratteristiche dei soggetti collegate a quegli aspetti. I modelli CUB sono stati applicati a specifici gruppi di profili selezionati in base ai risultati della Conjoint Analysis. L’approccio integrato ha permesso di stimare feeling e uncertainty dei soggetti per i livelli degli attributi aventi l’utilità più elevata come il packaging biodegradabile e il formato multipla divisibile. L’introduzione delle covariate ha mostrato che determinate caratteristiche demografiche sono collegate sia al feeling che all’uncertainty. I risultati della segmentazione “data-driven” dell’approccio integrato “CUB models e Conjoint Analysis” è stato il contributo più importante. Infine vengono discussi i limiti della ricerca e le direzioni di ricerca future.

Styles APA, Harvard, Vancouver, ISO, etc.

25

Aboutalib, Sarah. « Multiple-Cue Object Recognition for Interactionable Objects ». Research Showcase @ CMU, 2010. http://repository.cmu.edu/dissertations/19.

Texte intégral

Résumé :

Category-level object recognition is a fundamental capability for the potential use of robots in the assistance of humans in useful tasks. There have been numerous vision-based object recognition systems yielding fast and accurate results in constrained environments. However, by depending on visual cues, these techniques are susceptible to object variations in size, lighting, rotation, and pose, all of which cannot be avoided in real video data. Thus, the task of object recognition still remains very challenging. My thesis work builds upon the fact that robots can observe humans interacting with the objects in their environment. We refer to the set of objects, which can be involved in the interaction as `interactionable' objects. The interaction of humans with the `interactionable' objects provides numerous nonvisual cues to the identity of objects. In this thesis, I will introduce a flexible object recognition approach called Multiple-Cue Object Recognition (MCOR) that can use multiple cues of any predefined type, whether they are cues intrinsic to the object or provided by observation of a human. In pursuit of this goal, the thesis will provide several contributions: A representation for the multiple cues including an object definition that allows for the flexible addition of these cues; Weights that reflect the various strength of association between a particular cue and a particular object using a probabilistic relational model, as well as object displacement values for localizing the information in an image; Tools for defining visual features, segmentation, tracking, and the values for the non-visual cues; Lastly, an object recognition algorithm for the incremental discrimination of potential object categories. We evaluate these contributions through a number of methods including simulation to demonstrate the learning of weights and recognition based on an analytical model, an analytical model that demonstrates the robustness of the MCOR framework, and recognition results on real video data using a number of datasets including video taken from a humanoid robot (Sony QRIO), video captured from a meeting setting, scripted scenarios from outside universities, and unscripted TV cooking data. Using the datasets, we demonstrate the basic features of the MCOR algorithm including its ability to use multiple cues of different types. We demonstrate the applicability of MCOR to an outside dataset. We show that MCOR has better recognition results over vision-only recognition systems, and show that performance only improves with the addition of more cue types.

Styles APA, Harvard, Vancouver, ISO, etc.

26

Galesi, Fernanda Libardi. « Análise comportamental do modelo animal de recaída cue-induced ». Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/47/47132/tde-22022010-110943/.

Texte intégral

Résumé :

A recaída ao uso de drogas é um dos principais obstáculos para o tratamento do adicto. Um dos modelos animais mais utilizados para estudar a recaída no laboratório é o chamado de cue-induced. Embora esse modelo tenha se mostrado útil para o estudo de processos neurofisiológicos envolvidos na recaída, seu valor para a análise do controle de estímulos ambientais na dependência tem sido limitado por não distinguir a função dos estímulos discriminativos e dos reforçadores condicionados que controlam a reinstalação da resposta que foi reforçada por droga. O principal objetivo do presente estudo foi analisar os controles estabelecidos sobre as respostas de pressão à barra de ratos submetidos ao procedimento cue-induced. Foram realizados três experimentos. No Experimento 1, os animais passaram pelas três fases experimentais que caracterizam esse modelo. Na primeira fase, a resposta de pressão à barra foi treina em dois componentes distintos. Em um deles, as respostas emitidas na presença de um odor de laranja (SD1) tiveram como conseqüência a apresentação de um estímulo luminoso (Sr1) e liberação de uma solução de etanol (grupo ET) ou de sacarose (grupo SAC). Enquanto na outra, pressões à barra na presença de um odor de erva-doce (SD2) tiveram como conseqüência a apresentação um estímulo sonoro (Sr2) e liberação de água. Na segunda fase, foram realizadas sessões de extinção na ausência dos estímulos utilizados no treino. Na terceira fase os estímulos discriminativos e reforçadores condicionados foram reintroduzidos, mas as respostas de pressão à barra não foram reforçadas por etanol, sacarose ou água. Finalizado o procedimento padrão, foram realizados testes adicionais, nos quais cada estímulo utilizado no treino foi apresentado separadamente. O procedimento do Experimento 2 foi similar ao do Experimento 1, porém foram controladas duas variáveis irrelevantes para o modelo, mas associadas com as contingências experimentais: a maravalha da bandeja da caixa experimental e o acionamento do bebedouro. No Experimento 3, foi adicionada sacarose à solução de etanol e a água. Os resultados dos Experimentos 1 e 2 mostraram que Sr1 foi efetivo em reinstalar a resposta de pressão à barra nos testes de reinstalação realizados, enquanto SD1 foi inconsistente em reinstalar essa resposta. A apresentação de SD2 e Sr2 não reinstalou a resposta. Os dados obtidos no Experimento 3 foram inconclusivos quanto ao controle exercido pelos estímulos olfativos, luminosos e sonoros. Os resultados parecem sugerir que o modelo animal cue-induced, tipicamente usado para estabelecer linhas de base de controle discriminativo sobre a auto-administração de drogas, pode não ser adequado para tal finalidade. No entanto, ainda são necessários refinamentos experimentais para a obtenção de resultados mais acurados.
The relapse into drug use is one of the key obstacles for addict treatment. One of the animal models most used for relapse studies in laboratory is the so called cue-induced. Even though this model has been proven to be useful for neurophysiologic processes related to relapse, its value for analyzing environment stimulus control on addiction is considered to be limited because it does not distinguish the function of discriminative stimulus and of conditioned reinforcer which control the reinstatement of the response that was reinforced by the use of drugs. The main objective of this study was to analyze the established controls over the lever pressure responses of rats submitted to the cue-induced procedure. They were subjected to three different experiments. On the first one the animals were exposed to the three different experimental stages that characterize a cue-induced procedure. At the first experimental phase, lever press response was trained over two different components. In one of them, the response to an orange odor (SD1) had as a consequence the appearance of a luminous stimulus (Sr1) and the release of ethanol (ET group) or a sucrose solution (SAC group). While in the other one, lever press in the presence of a anise odor had as a consequence the appearance of a sonorous stimulus accompanied by water release. At the second phase, there were conducted extinction sessions in the lack of the stimuli used on the training phase. And finally, at the third phase, the discriminative stimulus and conditioned reinforcer were reintroduced. Nevertheless, the lever press response was not reinforced by ethanol, sucrose or water. By the time the standard procedure was over, additional tests were run, where each stimuli used on the training phase were presented to the rats separately. The second experiment procedure was similar to the one employed at the first experiment, however two irrelevant variables for the model were controlled for, but these were associated with the experimental contingencies: the sawdust on the experimental box trail and the drinking fountain when put into action. At the third experiment, sucrose was added to the ethanol solution and also to the water. The results from the two first experiments showed that Sr1 was effective in reinstate the lever pressure response verified at the reinstatement tests, whereas SD1 was not successful in doing so. Neither the introduction of SD2 nor Sr2 reinstate the response. The data obtained by Experiment 3 was not conclusive in regards to the control imposed by the olfactory, luminous and sonorous stimuli. The results suggest that the cue-induced procedure, typically used to establish baselines for discriminative control over drugs self-administration, may not be in fact the most suitable one for this purpose. Nonetheless, there is still a need to refine the experiment in order to reach more accurate and conclusive results.

Styles APA, Harvard, Vancouver, ISO, etc.

27

Yaakub, Mohd Ridzwan. « Integration of Opinion Mining into customer analysis model ». Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/85084/1/Mohd%20Ridzwan_Yaakub_Thesis.pdf.

Texte intégral

Résumé :

This research proposes a multi-dimensional model for Opinion Mining, which integrates customers' characteristics and their opinions about products (or services). Customer opinions are valuable for companies to deliver right products or services to their customers. This research presents a comprehensive framework to evaluate opinions' orientation based on products' hierarchy attributes. It also provides an alternative way to obtain opinion summaries for different groups of customers and different categories of produces.

Styles APA, Harvard, Vancouver, ISO, etc.

28

Braunwart, Paul R. « Experimental and Analytical Examination of Golf Club Dynamics ». Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/31506.

Texte intégral

Résumé :

To provide the average golfer with more consistent results, manufacturers have continued to improve the available equipment. This has led to larger club-heads, with larger ?sweet spots?, different shaft thickness for different swing styles, and the use of advanced materials, such as graphite and titanium, for the construction. The development of improved equipment, which utilizes advanced materials, has spurred the need for advanced scientific analysis using a variety of techniques. Among the most prevalent of these methods are finite element analysis and experimental modal analysis, and use of these techniques in examining a golf club is the focus of this research. The primary goals of this work are the development and correlation of an appropriate finite element model, the characterization of the hands-free boundary condition and the examination of the club golf dynamic response. To accomplish these objectives, the physical parameters of the golf club are determined to develop the finite element model. The analysis of natural frequencies and mode shapes correlate well with the results extracted from experimental modal analysis for the free-free and clamped-free boundary conditions. With the correlation established, a third boundary condition, hands-free, is tested experimentally to ascertain the effects of the golfer?s grip on the boundary conditions. With the FEA model confirmed, a nonlinear dynamic response of the club during the down-swing is investigated using the nonlinear solver in Algor, and the club-head position relative to the shaft is predicted.
Master of Science

Styles APA, Harvard, Vancouver, ISO, etc.

29

Wilbanks, Amie L. « The Fleeting Effects of Retrieval Cue Attributes in the PIER2 Memory Model ». [Tampa, Fla.] : University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000159.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

30

Zhang, Ru. « Testing Two Models of Paired-Associate Learning Incorporating the Principle of Encoding Specificity ». Ohio University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1311256036.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

31

Bejjavarapu, Sai Munesh. « An experimental model for guided microwave backscattering from wet insulation in pipelines ». University of Cincinnati / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1414750414.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

32

Jaffe, Theresa R. « Morphological studies of the CMB non-standard models and foregrounds / ». [S.l.] : [s.n.], 2005. http://edoc.ub.uni-muenchen.de/archive/00005950.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

33

Jaffe, Theresa. « Morphological Studies of the CMB : Non-standard Models and Foregrounds ». Diss., lmu, 2006. http://nbn-resolving.de/urn:nbn:de:bvb:19-59503.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

34

Ledwith, Alison C. (Alison Catherine). « Thermal mass performance in residential construction : an energy analysis using a cube model ». Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78146.

Texte intégral

Résumé :

Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 233-241).
Given the pervasiveness of energy efficiency concerns in the built environment, this research aims to answer key questions regarding the performance of thermal mass construction. The work presents the Cube Model, a simplified model of the single-family home. The model combines simplified geometry and equivalent envelope parameters with accurate climate data and internal loading assumptions. The model first addresses the notion as to whether building simplification is a valid means of analysis through a calibration and validation study. Then, the model is used to address three research areas on passive thermal mass: (1) the quantification of thermal mass performance with respect to material thermal properties; (2) the optimization of thermal mass performance for given material parameters; and (3) the sensitivity of thermal mass performance to infiltration and geometry effects. The experiments for wall and slab constructions, to address the first research area, demonstrate that the energy savings from thermal mass are both climate and season dependent. Results provide the magnitude of energy savings in fifty climates across the United States. Optimization experiments on the material thickness and conductivity, to address the second research area, show that constructions do not reach peak thermal mass performance at the same thermal properties in all climates. Sensitivity analyses, to address the third research area, indicate that passive thermal mass and tight construction practices can be mutually optimized without a trade-off of energy performance. Geometry effects demonstrate that modifications in building design can either benefit or hinder the performance of passive thermal mass. The combination of the results suggests that optimum design for thermal mass performance and the resulting energy consumption are climate-dependent and sensitive to many factors aside from material thermal properties.
by Alison C. Ledwith.
S.M.

Styles APA, Harvard, Vancouver, ISO, etc.

35

Richards, Jessica Anne. « Sports Space : A Conceptual Model of Everton Football Club Match-day Fan Movement ». Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/15969.

Texte intégral

Résumé :

When a sport fan speaks of their football teams’ home ground, emotions relating belonging, ritual, and local territory are often evoked. This research examines the making of meaning behind the match-day experience. It highlights the importance of transitioning through physical locations in enhancing and maintaining the social, cultural and masculine histories of a sport fan community. Drawing on ethnographic data generated from participant observation and semi-structured interviews on Everton football club fans throughout the 2012-2015 seasons of Premier League football, I explore how physical and social environments influence and encourage various types of fan behaviour within particular locations, and argue that the football crowd is not a homogenous unit, but rather, is incredibly fractured and diverse in nature. It considers how a variety of fan subcultures existing in sports space experience match-day differently. Theoretically anchored in symbolic interactionism, socio-spatial theory, and gender theory, this research developed a model for match-day called ‘sports space’. Sports space consists of three zones: ‘unofficial zone’, ’community zone’ and the ‘stadium zone’. When combined, these three zones provide a clear socio-spatial sense of the match-day routine, which was informed and directed by the very research participants that create, engaged, and used these zones.This thesis offers an original contribution to the sociology of sport through focusing on multiple fan subcultures and the multiple locations that make up a match-day experience. These ideas can be tied to wider issues concerning the social organisation of sport crowds and how sport fans internalise the debates surrounding authentic and inauthentic ‘types’ of fandom. The key findings of this research suggest that architectural elements and the cultural meanings ascribed to them by fans are neither static nor unchanging. Whilst the match day routine reproduces and reinforces gendered and local identities and narratives, I argue it also creates space for counter-hegemonic and resistant practices and meanings. As a result of this research, a greater understanding of the ways a variety of fan subcultures perform, understand and engage with their fandom and fan identity is reached.

Styles APA, Harvard, Vancouver, ISO, etc.

36

Swartling, Gustaf, et William Johansson. « Foreign Direct Investment in Cuba : A study on the 2014 reforms ». Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70589.

Texte intégral

Résumé :

Since the Soviet collapse in 1991, Cuba tried intensively to attract foreign direct investments in order to improve the economic situation. The first reform was made in 1995, which was not a success, since both foreign direct investment and joint ventures decreased in the beginning of the 21st Century. In response, the government implemented a new law concerning foreign direct investment in 2014, with more relaxed regulations and increased benefits for the investors. This study aimed to examine whether the 2014 reform had solved the problems that existed under the previous law and the new reforms had helped Cuba’s exports. The purpose was therefore to investigate to which industry foreign direct investment should be allocated. The study took two approaches. First, it applied the Revealed Comparative Advantage model to distinguish effective from ineffective industries. It included a field study that aimed to gain understanding of the effect the new law has had so far, and whether it could improve exports. In addition, the field study attempted to determine where foreign direct investment should be allocated. The results indicated that Cuba has a comparative advantage in two industries: mining and agriculture. These industries were therefore examined in the field study. Key findings showed that ongoing issues, such as bureaucracy, lack of legal security and the wage policies of government employment agencies still exist, despite the introduction of new legislation. However, the new law may create increasing export possibilities in the food and mining industries, since Cuba has an outwardly-orientated policy and large factor proportions in agriculture and mining that could be exploited.
Minor Field Study (MFS)

Styles APA, Harvard, Vancouver, ISO, etc.

37

Olsson, Anna-Carin. « Factors Shaping Process and Representation in Multiple-Cue Judgment ». Doctoral thesis, Umeå : Dept. of psychology, Univ, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-264.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

38

Damghanian, Mitra, Roger Olsson, Mårten Sjöström, Fructuoso Hector Navarro et Corral Manuel Martinez. « Investigating the lateral resolution in a plenoptic capturing system using the SPC model ». Mittuniversitetet, Avdelningen för informations- och kommunikationssystem, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-18515.

Texte intégral

Résumé :

Complex multidimensional capturing setups such as plenoptic cameras (PC) introduce a trade-off between various system properties. Consequently, established capturing properties, like image resolution, need to be described thoroughly for these systems. Therefore models and metrics that assist exploring and formulating this trade-off are highly beneficial for studying as well as designing of complex capturing systems. This work demonstrates the capability of our previously proposed sampling pattern cube (SPC) model to extract the lateral resolution for plenoptic capturing systems. The SPC carries both ray information as well as focal properties of the capturing system it models. The proposed operator extracts the lateral resolution from the SPC model throughout an arbitrary number of depth planes giving a depth-resolution profile. This operator utilizes focal properties of the capturing system as well as the geometrical distribution of the light containers which are the elements in the SPC model. We have validated the lateral resolution operator for different capturing setups by comparing the results with those from Monte Carlo numerical simulations based on the wave optics model. The lateral resolution predicted by the SPC model agrees with the results from the more complex wave optics model better than both the ray based model and our previously proposed lateral resolution operator. This agreement strengthens the conclusion that the SPC fills the gap between ray-based models and the real system performance, by including the focal information of the system as a model parameter. The SPC is proven a simple yet efficient model for extracting the lateral resolution as a high-level property of complex plenoptic capturing systems.

Styles APA, Harvard, Vancouver, ISO, etc.

39

Pieroni, Mauro. « Classification of inflationary models and constraints on fundamental physics ». Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC258/document.

Texte intégral

Résumé :

Ce travail est concentré sur l'étude de la cosmologie primordiale et en particulier sur l'étude de l'inflation. Après une introduction sur la théorie standard du Big Bang, nous discutons de la physique du CMB et nous expliquons comment ses observations peuvent être utilisées pour définir des contraintes sur les modèles cosmologiques. Nous introduisons l'inflation et nous expliquons sa réalisation la plus simple. Nous présentons les observables et les contraintes expérimentales qui peuvent être utilisées pour mettre des contraintes sur les modèles d'inflation. La possibilité d'observer des ondes gravitationnelles primordiales (GW) produites au cours de l'inflation est examinée. Nous présentons les raisons pour définir une classification des modèles d'inflation et pour introduire le formalisme de la fonction 13 pour décrire l'inflation. En particulier nous expliquons pourquoi, dans ce cadre, nous pouvons naturellement définir un ensemble de classes d'universalité pour les modèles d'inflation. Les motivations théoriques pour soutenir la formulation de l'inflation en termes de ce formalisme sont présentées. Certains modèles généralisés d'inflation sont introduits et l'extension du formalisme de la fonction (3-formalisme à ces modèles est discutée. Enfin, nous nous concentrons sur l'étude des modèles où l’inflation (qui es assumé être pseudo-scalaire) est couplé non-minimalement à des champs de jauge abéliens qui peuvent être présents lors de l'inflation. L'analyse du problème est effectuée en utilisant une caractérisation de modèles d'inflation sur la base de leur comportement asymptotique. Un large éventail d'aspects théoriques et des conséquences d'observation est discuté
This work is focused on the study of early time cosmology and in particular on the study of inflation. After an introduction on the standard Big Bang theory, we discuss the physics of CMB and we explain how its observations can be used to set constraints on cosmological models. We introduce inflation and we carry out its simplest realization by presenting the observables and the experimental constraints that can be set on inflationary models. The possibility of observing primordial gravitational wave (GW) produced during inflation is discussed. We present the reasons to deftne a classification of inflationary models and introduce the [3-function formalism for inflation by explaining why in this framework we can naturally define a set of universality classes for inflationary models. Theoretical motivations to support the formulation of inflation in terms of this formalism are presented. Some generalized models of inflation are introduced and the extension of the (3-function formalism for inflation to these models is discussed. Finally we focus on the study of models where the (pseudo-scalar) inflaton is non-minimally coupled to some Abelian gauge fields that can be present during inflation. The analysis of the problem is carried out by using a characterization of inflationary models in terms of their asymptotic behavior. A wide set of theoretical aspects and of observational consequences is discussed

Styles APA, Harvard, Vancouver, ISO, etc.

40

Legg, Stephen. « Multi-mode receiver systems for cosmic microwave background B-mode polarisation experiments ». Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/multimode-receiver-systems-for-cosmic-microwave-background-bmode-polarisation-experiments(11399beb-9f3d-455b-b236-7d612ab1a00b).html.

Texte intégral

Résumé :

A measurement of the primordial B-mode polarisation of the Cosmic Microwave Background would provide direct evidence of inflation in the early universe. The extremely weak nature of the B-mode signal necessitates an instrument with a high sensitivity and precise control over systematic effects. Multi-mode antenna feed horns offer higher sensitivity than their single-mode counterparts, however their behaviour is much more complex. The Short Wavelength Instrument for the Polarisation Explorer (SWIPE) onboard the Large Scale Polarisation Explorer (LSPE) is one instrument planning to implement multi-mode feed horns. SWIPE will attempt to detect the primordial B-mode at large angular scales, measuring the sky in three bands at 140, 220 and 240 GHz. A single on-axis High-Density PolyEthylene (HDPE) lens and polarisation-splitting wire grid combine to focus the radiation from the sky onto two focal planes of multi-mode horns feeding bolometric detectors. A large diameter rotating metal-mesh half-wave plate allows both polarisations to be measured by the same pixel, therefore bypassing many detector systematics. Simulations are performed to predict the sky beam for two key pixels: closest to and furthest from the centre of the focal plane. For the 140 GHz channel the cross-polarisation is predicted, and the optimum location at which to place the telescopeâs focus behind the horn aperture to maximise gain and optimise beam shape is investigated. A measurement of the multi-mode horn is performed using a room-temperature bolometer. An investigation is also conducted to assess to what extent the same measurements can be performed using a coherent measurement system such as a vector network analyser. A working coherent measurement technique is devised, however it is limited to horns carrying only the first 3 modes.

Styles APA, Harvard, Vancouver, ISO, etc.

41

Unni, Ambili. « Participation, retention and dropout of children and adolescents in club-based community tennis ». Thesis, Federation University Australia, 2021. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/187225.

Texte intégral

Résumé :

Promoting participation in sport to achieve sporting excellence and health outcomes is a national policy of Australia. Organised, club-based sport at community level is important as it provides a pathway to elite sporting success and contributes to health and wellbeing of participants. Dropout from all forms of club-based sports including tennis occurs specifically during adolescence in Australia and internationally. Little is known about the factors that collectively influence this age group in their choice to continue playing club-sport or to drop out. This PhD program of research investigated the trends and determinants of retention and dropout among children and adolescents playing community level club-based tennis in the Australian state of Victoria. The program of research used the socio-ecological model underpinned by Leisure Constraint Theory and Fun Integration Theory to understand the different factors that influence retention. The mixed-methods explanatory sequential research design comprised of two consecutive phases of quantitative study that involved secondary data analysis of state-wide club-tennis participation and an on-line survey that examined the determinants of retention and dropout with a socio-ecological perspective. This was followed by an informed qualitative study to explore the key findings in depth. Players aged 10-18 years who were or had been registered players at tennis clubs in Victoria were invited to participate. Analysis of survey data and interviews identified a range of factors that influence and impact the decision of young players to continue playing club-based tennis or to drop out. The result from this program of research highlighted the two intrapersonal determinants ‘enjoyment’ and ‘competency’ as ‘core’ determinants of young players’ choice to be retained or to drop out. Many previous studies have listed enjoyment and competency and several other socio-ecological factors as determinants influencing retention. This research created new knowledge by explaining how each individual socio-ecological element influenced retention through enhancing or diminishing the two core determinants. Mapping of the interaction of multiple socio-ecological elements in leading to retention or dropout while presenting enjoyment and competency as core determinants is unique. Improving retention in club-based tennis during adolescence is important for maintaining participation as a habit into adulthood. As a practical way to achieve this, factors that are identified in this study as influencing enjoyment and competency can be targeted through interventions at various levels through policies and strategies in delivering club programs, coaching and competition. Competency and enjoyment are interconnected in promoting retention. Increasing access to affordable and good quality coaching promotes enjoyment through improving competency and hence should be prioritised to sustain children’s interest and passion for the game. The knowledge about interconnectivity of several apparently distinct elements reiterates the importance of a holistic approach in sport retention studies. It provides the theoretical backing for strategies aimed at retaining more children and adolescents in organised sport which is important for carrying regular physical activity habit into adulthood and ensuring sustainability of organised sports.
Doctor of Philosophy

Styles APA, Harvard, Vancouver, ISO, etc.

42

Unni, Ambili. « Participation, retention and dropout of children and adolescents in club-based community tennis ». Thesis, Federation University Australia, 2021. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/186825.

Texte intégral

Résumé :

Promoting participation in sport to achieve sporting excellence and health outcomes is a national policy of Australia. Organised, club-based sport at community level is important as it provides a pathway to elite sporting success and contributes to health and wellbeing of participants. Dropout from all forms of club-based sports including tennis occurs specifically during adolescence in Australia and internationally. Little is known about the factors that collectively influence this age group in their choice to continue playing club-sport or to drop out. This PhD program of research investigated the trends and determinants of retention and dropout among children and adolescents playing community level club-based tennis in the Australian state of Victoria. The program of research used the socio-ecological model underpinned by Leisure Constraint Theory and Fun Integration Theory to understand the different factors that influence retention. The mixed-methods explanatory sequential research design comprised of two consecutive phases of quantitative study that involved secondary data analysis of state-wide club-tennis participation and an on-line survey that examined the determinants of retention and dropout with a socio-ecological perspective. This was followed by an informed qualitative study to explore the key findings in depth. Players aged 10-18 years who were or had been registered players at tennis clubs in Victoria were invited to participate. Analysis of survey data and interviews identified a range of factors that influence and impact the decision of young players to continue playing club-based tennis or to drop out. The result from this program of research highlighted the two intrapersonal determinants ‘enjoyment’ and ‘competency’ as ‘core’ determinants of young players’ choice to be retained or to drop out. Many previous studies have listed enjoyment and competency and several other socio-ecological factors as determinants influencing retention. This research created new knowledge by explaining how each individual socio-ecological element influenced retention through enhancing or diminishing the two core determinants. Mapping of the interaction of multiple socio-ecological elements in leading to retention or dropout while presenting enjoyment and competency as core determinants is unique. Improving retention in club-based tennis during adolescence is important for maintaining participation as a habit into adulthood. As a practical way to achieve this, factors that are identified in this study as influencing enjoyment and competency can be targeted through interventions at various levels through policies and strategies in delivering club programs, coaching and competition. Competency and enjoyment are interconnected in promoting retention. Increasing access to affordable and good quality coaching promotes enjoyment through improving competency and hence should be prioritised to sustain children’s interest and passion for the game. The knowledge about interconnectivity of several apparently distinct elements reiterates the importance of a holistic approach in sport retention studies. It provides the theoretical backing for strategies aimed at retaining more children and adolescents in organised sport which is important for carrying regular physical activity habit into adulthood and ensuring sustainability of organised sports.
Doctor of Philosophy

Styles APA, Harvard, Vancouver, ISO, etc.

43

Regan, Donough Michael. « Measuring CMB non-Gaussianity as a probe of inflation and cosmic strings ». Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609806.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

44

Zucchetta, Francesco <1988&gt. « How does the ownership of the stadium influence the business model of a football club ? » Master's Degree Thesis, Università Ca' Foscari Venezia, 2013. http://hdl.handle.net/10579/3162.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

45

Singh, Jaskirat. « Wind Speed Profiles and Pressure Coefficients Obtained in the Wind Induced Damage Simulator for Silsoe Cube Model ». Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41094.

Texte intégral

Résumé :

Hazardous winds, such as tornadoes and hurricanes, have a great impact on civil engineering structures and cause significant social and economic disturbances. The wind speed and pressure tested in the conventional wind tunnel experiments are much smaller than the actual wind speed and pressure measured in the field. Therefore, the Wind-induced Damage Simulator (WDS) was constructed at the University of Ottawa to overcome the wind speed limitations of wind tunnels and to simulate different types of wind speed profiles. WDS is an isolated cubic box with dimensions 3.65m x3.65 m and 3.0 m height, with multiple inlets on the side faces of the testing chamber and an outlet on the top side. This unique equipment creates a controlled environment for studying wind speed profiles in a confined space, by regulating the air flow with the aid of an attached industrial blower. To measure the simulated wind velocities inside the WDS and to obtain the wind speed profile in the testing chamber, Aeroprobe (12- Hole Probe) sensor was used for different combinations of opened inlets and at four different locations. The data collected from the Aeroprobe was processed by the use of the Aeroflow 2.7.5.7346 software, to get the velocity of wind in three different directions (u, v and w) and the mean velocity at a single point. After determining the mean velocity at different heights and RPM values at all four positions, Matlab software was used to determine the wind profile and the spectra of the turbulence intensities and these were compared for different heights at the four investigated locations and for various rotations per minute (RPM) values (400 to 800 RPM) for controlling the blower. Once the flow characterization was completed, the wind-induced pressure for three models of the Silsoe Cube were measured as a part of the second phase of the test. The current experiment employed 3 different scales of Silsoe cube: 1:40, 1:30 and 1:20, while the pressure coefficients were determined at 16 different points along a vertical line crossing the faces of the cube. A pressure taps system with 16 channels and a Scanivale pressure scanner were used to measure the pressure at 16 different positions on the cube. Matlab software was used to determine the pressure coefficients from the data measured by pressure taps. The pressure coefficienst for the Silsoe Cube were plotted and compared for the three different scales. Also, for determining the best scale to be used in future experiments. The pressure coefficients of the 3 different scaled model of Silsoe Cubes was compared with full-scale data reported in the literature for the same structure. Based on the results obtained from the experiments, recommendations for the best location in the testing chamber for the future experiments employing the WDS were formulated.

Styles APA, Harvard, Vancouver, ISO, etc.

46

Elias, Bartholomew. « Cross-modal facilitation of spatial frequency discriminations through auditory frequency cue presentations ». Thesis, Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/28611.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

47

Rebolledo, Musalem José Pablo. « Diseño de un Modelo de Negocios para la Empresa Club el Origen ». Tesis, Universidad de Chile, 2012. http://repositorio.uchile.cl/handle/2250/104428.

Texte intégral

Résumé :

En los últimos años, en Chile se ha desarrollado intensamente la industria de apoyo a los emprendimiento en sus distintas necesidades. A modo de ejemplo, sólo durante el 2010 se crearon 3 incubadoras de negocio asociadas a empresas privadas; y CORFO entregó a distintos emprendedores más de USD $ 2.500 millones sólo en el 2011. Basado en su intuición, el alumno de este trabajo, más tres compañeros de la Universidad fundaron Club el Origen en Diciembre de 2010, con un servicio de espacios de trabajo colaborativo o de Coworking. Sin embargo, hasta la fecha la empresa no ha sido capaz de diseñar un modelo de negocios sustentable y escalable, razón por la cual se realizó este trabajo de título. Dado lo anterior, el estudio validó la oportunidad de negocios que representa el Coworking, a través de un análisis estratégico, encontrando un foco de negocios en la industria y diseñando posteriormente una oferta de valor, basada en potenciar las habilidades del emprendedor por sobre la idea de negocios, al ofrecer espacios de trabajo que incentiven la productividad y ser el lugar donde los emprendedores puedan crear su propia red de apoyo para su negocio; todo lo cual fue el foco comercial definido. La investigación de mercado validó que la motivación, la capacidad para mantener el foco, la relación con sus pares, la utilización sus redes de contacto, la obtención de feedback y el diseño funcional de los espacios son temas clave que afectan la productividad y el éxito de los emprendimientos, por lo que deben ser parte de la oferta de valor. En consecuencia, dado estos resultados y la experiencia de los socios de la empresa, se diseñó un modelo de negocios para tres segmentos de clientes: emprendedores enfocados, emprendedores sin foco y centros de innovación y emprendimiento. De acuerdo al flujo de caja operacional, elaborado a tres años, el Coworking en una casa de 500Mts2 ofrece un VAN(12%) aproximado a $ 95 millones, el capital inicial requerido es de $ 54 millones, el 97% de la estructura de costos es fija y se requiere un total de 64 personas y 5 meses para alcanzar el punto de equilibrio. Por lo tanto, se concluyó que la instalación de un Coworking sería un negocio atractivo y rentable; pero dado el requerimiento financiero planteado, resulta necesario asociarse –idealmente- con una Universidad para obtener la inversión inicial y hacer más factible el proyecto. Otro tipo de asociación exigiría a la empresa un resultado financiero rápido que podría ser riesgoso comprometer. Dado que la empresa no cuenta con otras líneas de negocio que sustenten las operaciones, aun si se llegase a conseguir el capital inicial, una evolución por debajo de lo esperado en las tasas de incorporación de nuevos clientes, es un factor importante de riesgo que influiría fuertemente en los resultados del proyecto.

Styles APA, Harvard, Vancouver, ISO, etc.

48

Carvalho, Elizabeth Simão. « CHUB : um modelo cartográfico para a visualização e análise do corpo humano ». Doctoral thesis, Universidade do Minho, 2008. http://hdl.handle.net/1822/8298.

Texte intégral

Résumé :

Tese de Doutoramento em Tecnologias e Sistemas de Informação - Área do Conhecimento Engenharia de Programação e dos Sistemas Informáticos
A visualização é a representação visual realística ou abstracta de um conjunto de dados que são gerados por modelos computacionais ou resultantes de medições físicas realizadas no mundo real. É fundamental para auxiliar as pessoas a compreenderem dados e processos complexos e pode ser classificada consoante os seus objectivos (nomeadamente a visualização científica e de informação). A correcta modelação e caracterização dos dados são partes fundamentais para a escolha de técnicas visuais eficazes e a produção de uma visualização válida. O grande desafio é exactamente o de identificar como a análise dos resultados pode e deve ser mostrada ao potencial utilizador de uma forma simultaneamente sucinta, coerente e útil. O conceito de modelação cartográfica ou álgebra de mapas foi desenvolvido por Dana Tomlin em 1983 com o Map Analysis Package1 [Sendra2000]. Um modelo cartográfico pode ser visualizado como uma colecção de mapas registados numa base cartográfica comum, em que cada mapa é uma variável sujeita a operações matemáticas tradicionais. A modelação é um processo que decorre de operações primitivas de pontos, vizinhança e regiões sobre diferentes mapas, numa lógica sequencial para interpretar e resolver problemas espaciais. Neste contexto, a sequência de operações é similar à solução algébrica de um conjunto de equações. A criação de ferramentas informáticas para a análise e visualização de dados relacionados com o corpo humano é uma área em forte expansão e de especial interesse. Apesar destas ferramentas serem muito úteis, sofrem bastante da limitação imposta pela arquitectura dos modelos utilizados para o seu desenvolvimento e consequente implementação. Isto ocorre porque estes modelos adoptam os mesmos princípios e ponderações que são aplicados a dados de natureza não humana ou biológica e tratando-os de forma independente e atómica. Por outro lado, a utilização de técnicas visuais pouco intuitivas no sentido de denotar a interdependência espacial inerente a este tipo de informação é outra limitação a salientar neste tipo de ferramentas. Os dados relacionados com o corpo humano apresentam uma forte componente espacial. Para que seja possível uma análise e investigação correctas é necessário ter isso sempre em consideração. Um bom exemplo desta situação é o diagnóstico médico. A combinação de informação oriunda de diferentes partes do corpo humano é normalmente necessária para que um médico possa diagnosticar a doença de um paciente. O acto de diagnosticar pode ser traduzido por um conjunto de operações de álgebra de mapas executadas sobre os dados relacionados com o corpo humano do paciente. Qualquer modelo que pretenda servir de base para o desenvolvimento e implementação de ferramentas informáticas orientadas para a medicina, e em especial, para a análise e visualização de dados relacionado com o corpo humano, deve incorporar os princípios fundamentais da modelação cartográfica. Desta maneira, é possível que os dados possam ser devidamente modelados e consequentemente extrapolada mais informação útil. Por outro lado, a utilização da visualização como instrumento de comunicação de resultados, com a inclusão de metáforas visuais cartográficas é outra mais-valia a ter em conta. O modelo CHUB (Cartographic Human Body), que é apresentado neste trabalho, pretende colmatar essa falha identificada no tratamento e visualização de dados relacionados com o corpo humano. Utiliza a modelação cartográfica como alicerce fundamental para a análise dos dados e a visualização científica e de informação como meio para a comunicação de resultados. Para ser possível a sua avaliação e validação foram considerados dois estudos de caso: diagnóstico da artrose no joelho e a análise de sessões de hidrocinesioterapia. Para estes dois estudos de caso foi implementado um protótipo que instancia o modelo CHUB nestes casos particulares, permitindo a sua utilização, avaliação e validação em dois domínios específicos. Os resultados obtidos após a utilização e avaliação do protótipo permitiram validar com sucesso o modelo CHUB proposto nesta tese de doutoramento.
Visualization is the realistic or abstract visual representation of a dataset that is generated by computer models or resulting from physical measurements of the real world. Visualization is fundamental to help people understand data and complexes processes and can be categorized according its goals (scientific or information). The correct data model and characterization are essential to the right choice of the visualization techniques and the production of useful visualizations. The great challenge lies in how to determine that the results are showed to the final users at the same time in a coherent, useful and simple way. The cartographic model concept was developed by Dana Tomlin in 1983 with the Map Analysis Package2 [Sendra2000]. A cartographic model can be seen as a collection of maps that are registered in a cartographic database, where each map is a “variable” that can be mathematically operated. These operations may involve primitives such as points or areas of different maps, for example, in a sequential order to interpret and solve spatial problems. In this context, the sequence of operations is similar to the algebraic solution of a group of equations. The creation of automatic tools for human’s body data analysis and visualization is a field in expansion and of great interest. However these tools are very valuable, they suffer from a common limitation that is imposed by their basis architectural model. In general, they rarely represent in a suitable way biological, morphological and/or biomedical data spatial interdependency. These models treat data in an almost total focused and independent way. The human body systems and organs work as a complex machine, where each part depends strongly on the others. This dependency might be stronger or weaker to the system or organ importance on the overall patient condition. The doctor diagnoses an illness by comparing and analyzing information not only directly related to the mostly affected organ, but also to the body as a whole. In fact the doctor performs a subtle spatial analysis, and therefore, executes a typical algebraic map operation in his/her mind, when diagnosing a patient. An illness might arouse different symptoms and physiological changes in systems/organs that are not directly related to the spatial location of it. CHUB is a model that was developed taking into consideration the main principles of cartographic modelling. It structures data according to different layers of information. Each layer is associated to a specific organ and/or system, and might contain geometric data or attributes that are “human-referenced”. CHUB has not been developed as a dynamic model. It is considered that dynamic issues related to human’s body data, such as body movement, blood flow or heartbeat (besides others) will be accomplished by other models that should be used as a specialized extension to CHUB. In order to validate CHUB two cases of study were considered – osteoarthritis knee diagnosis and hydrokinetic therapy sessions analysis, proposed two strategies for its validation and a prototype implemented. This prototype allowed its utilization, evaluation and validation in two different domains. The results achieved after its utilization and test lead to a complete CHUB validation.

Styles APA, Harvard, Vancouver, ISO, etc.

49

Carvalho, Elizabeth Simão. « CHUB : um modelo cartográfico para a visualização e análise do corpo humano ». Doctoral thesis, Universidade do Minho, 2008. http://hdl.handle.net/10884/293.

Texte intégral

Résumé :

Visualization is the realistic or abstract visual representation of a dataset that is generated by computer models or resulting from physical measurements of the real world. Visualization is fundamental to help people understand data and complexes processes and can be categorized according its goals (scientific or information). The correct data model and characterization are essential to the right choice of the visualization techniques and the production of useful visualizations. The great challenge lies in how to determine that the results are showed to the final users at the same time in a coherent, useful and simple way. The cartographic model concept was developed by Dana Tomlin in 1983 with the Map Analysis Package2 [Sendra2000]. A cartographic model can be seen as a collection of maps that are registered in a cartographic database, where each map is a “variable” that can be mathematically operated. These operations may involve primitives such as points or areas of different maps, for example, in a sequential order to interpret and solve spatial problems. In this context, the sequence of operations is similar to the algebraic solution of a group of equations. The creation of automatic tools for human’s body data analysis and visualization is a field in expansion and of great interest. However these tools are very valuable, they suffer from a common limitation that is imposed by their basis architectural model. In general, they rarely represent in a suitable way biological, morphological and/or biomedical data spatial interdependency. These models treat data in an almost total focused and independent way. The human body systems and organs work as a complex machine, where each part depends strongly on the others. This dependency might be stronger or weaker to the system or organ importance on the overall patient condition. The doctor diagnoses an illness by comparing and analyzing information not only directly related to the mostly affected organ, but also to the body as a whole. In fact the doctor performs a subtle spatial analysis, and therefore, executes a typical algebraic map operation in his/her mind, when diagnosing a patient. An illness might arouse different symptoms and physiological changes in systems/organs that are not directly related to the spatial location of it. CHUB is a model that was developed taking into consideration the main principles of cartographic modelling. It structures data according to different layers of information. Each layer is associated to a specific organ and/or system, and might contain geometric data or attributes that are “human-referenced”. CHUB has not been developed as a dynamic model. It is considered that dynamic issues related to human’s body data, such as body movement, blood flow or heartbeat (besides others) will be accomplished by other models that should be used as a specialized extension to CHUB. In order to validate CHUB two cases of study were considered – osteoarthritis knee diagnosis and hydrokinetic therapy sessions analysis, proposed two strategies for its validation and a prototype implemented. This prototype allowed its utilization, evaluation and validation in two different domains. The results achieved after its utilization and test lead to a complete CHUB validation.

Styles APA, Harvard, Vancouver, ISO, etc.

50

Peloton, Julien. « Data analysis and scientific exploitation of the CMB B-modes experiment, POLARBEAR ». Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCC154.

Texte intégral

Résumé :

L'évolution des techniques d'observation au cours des deux dernières décennies a rendu possible l'obtention de jeux de données de plus en plus précis, et a permis l'évolution de la cosmologie vers une science de haute précision. Les études menées sur les anisotropies du Fond Diffus Cosmologique n'ont jamais cessé de jouer un rôle prépondérant dans cette transformation, tant leurs impacts ont été importants. Néanmoins, les jeux de données extrêmement volumineux et complexes produits par les expériences de Fond Diffus en cours posent un nouveau défi pour le domaine, à tel point que la réussite de l'analyse moderne des données du Fond Diffus repose sur une forte interdisciplinarité combinant de la physique, des mathématiques, des méthodes statistiques ainsi que des méthodes de calcul numérique. Dans cette thèse, j'expose l'analyse du premier jeu de données produit par POLARBEAR, l'une des expériences actuelle de premier plan sur le Fond Diffus, ainsi que les résultats majeurs obtenus. L'expérience POLARBEAR est spécifiquement dédiée à la détection et à la caractérisation de la signature des modes B de la polarisation du Fond Diffus Cosmologique. La recherche des modes B est l'un des sujets actuel les plus passionnants pour le Fond Diffus, qui a commencé à ouvrir de nouvelles perspectives sur la cosmologie, en partie grâce aux résultats présentés et discutés dans ce travail. Dans cette thèse, je décris en premier lieu le modèle cosmologique actuel, en me concentrant sur la physique du Fond Diffus, et plus particulièrement ses propriétés de polarisation; ainsi qu'une vue d'ensemble des contributions et des résultats des expériences antérieures et en cours. Dans un deuxième temps, je présente l'instrument POLARBEAR, l'analyse des données prises lors de la première année d'observation, ainsi que les résultats scientifiques qui en ont été tirés, en soulignant principalement ma contribution au projet dans son ensemble. Dans le dernier chapitre, et dans le contexte des prochaines générations d'expérience sur les modes B, je détaille une étude plus systématique concernant l'impact de la présence des fuites des modes E dans les modes B sur les performances prévues par ces futures expériences, notamment en comparant plusieurs méthodes dont la méthodes des pseudospectres pures ainsi que l'estimateur quadratique à variance minimum. En particulier, dans le cas d'observation du ciel présentant une symétrie azimutale, je détaille comment l'estimateur quadratique à variance minimum peut être utilisé pour estimer de manière efficace les paramètres cosmologiques, et je présente une implémentation performante basée sur des algorithmes parallèles existants pour le calcul des transformations en harmoniques sphériques
Over the last two decades cosmology has been transformed from a data-starved to a data-driven, high precision science. N This transformation happened thanks to improved observational techniques, allowing to collect progressively bigger and more powerful data sets. Studies of the Cosmic Microwave Background (CMB) anisotropies have played, and continue on doing so, a particularly important and impactful role in this process. The huge data sets produced by recent CMB experiments pose new challenges for the field due to their volumes and complexity. Its successful resolution requires combining mathematical, statistical and computational methods aIl of which form a keystone of the modern CMB data analysis. In this thesis, I describe data analysis of the first data set produced by one of the most advanced, current CMB experiments, POLARBEAR and the major results it produced. The POLARBEAR experiment is a leading CMB B-mode polarization experiment aiming at detection and characterization of the so-called B-mode signature of the CMB polarization. This is one of the most exciting topics in the current CMB research, which only just has started yielding new insights onto cosmology in part thanks to the results discussed hereafter. In this thesis I describe first the modern cosmological model, focusing on the physics of the CMB, and in particular its polarization properties, and providing an overview of the past experiments and results. Subsequently, I present the POLARBEAR instrument, data analysis of its first year data set and the scientific results drawn from it, emphasizing my major contributions to the overall effort. In the last chapter, and in the context of the next generation CMB B-mode experiments, I present a more systematic study of the impact of the presence of the so-called E-to-B leakage on the performance forecasts of CMB B-modes experiments, by comparing several methods including the pure pseudospectrum method and the minimum variance quadratic estimator. In particular, I detail how the minimum variance quadratic estimator in the case of azimuthally symmetric patches can be used to estimate efficiently parameters, and I present an efficient implementation based on existing parallel algorithms for computing Spherical Harmonic Transforms

Styles APA, Harvard, Vancouver, ISO, etc.

Thèses sur le sujet « CUB model »

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres