Dissertations / Theses on the topic 'Prix du temps'
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Génin-Jean, Pierre. "Prix des oeuvres d'art et hiérarchie des valeurs artistiques au temps des Médicis." Paris 4, 1998. http://www.theses.fr/1998PA040095.
Full textThe purpose of this research is to draw from the prices of works of art, as they are recorded in the archives, useful informations for the historians. Italian art from 1475 to 1750 is under study. We have created a data basis called "campaspe" in order to register with their characteristics more than 3 500 prices of works done by about 500 artists. The various currencies used for those prices were first converted into pounds sterling, a currency which underwent a serious study about its inflation. The prices of works of art as well as those of numerous goods and services were then converted into pounds of the year 1680 so as to take into account the inflation. They became, thus, comparable. We notice, at this point, an astonishingly low value of paintings vs that of sculptures, tapestries, vases, cameos, and not to mention jewels. Thus, and for paintings only, the prices in pounds 1680 are subject to a technique widely used in statistics; multiple regression. This allows to detect the numerous factors which influence them and to get a predicting model of the price of a painting, taking into account the source of the price, the surface of the painting, the status of the acquirer as well as many other parameters. The ratio between the observed price and the predicted one gives an order of magnitude of the aesthetic appreciation of the painting. There are many sources of errors in this kind of procedure. Nevertheless, many results appear: the taste of that period endows artists with a hierarchy quite different from ours; new explanations are brought forh as to the behavior of patrons, collectors and artists. Our data basis "campaspe" can be extended to other periods and countries
Diemer, Arnaud. "De la discrimination par les prix à la discrimination par le temps : théorie et applications." Paris 9, 2000. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=2000PA090010.
Full textSerot, Isabelle. "Temps local et estimation de régression dans les processus à temps continu." Paris 6, 2002. http://www.theses.fr/2002PA066335.
Full textPegoraro, Fulvio. "Modèles à facteurs en temps discret pour la valorisation d'actifs financiers." Paris 9, 2006. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=2006PA090063.
Full textThe general purpose of this thesis is to propose a discrete time dynamic modelling of several financial asset and commodity prices : stock options, zero-coupon bonds, coupon bonds, interest rate derivatives (swaps, caps, floors, options on zero-coupon), forward and futures contracts written on financial assets or commodities, options on forward and futures. These models can be applied to price derivatives, to forecast asset prices and returns, or to build hedging strategies. The proposed models are characterized by the following important common features : the definition of the factors, the specification of the historical factor dynamics, the introduction of a Stochastic Discount Factor, the imposition of absence of arbitrage restrictions, the derivation of the risk-neutral dynamics and asset pricing formulas, and the statistical inference on model parameters
Quittard-Pinon, François. "L'intégration du temps dans l'évaluation des actifs financiers à l'équilibre." Lyon 1, 1988. http://www.theses.fr/1988LYO19001.
Full textLasserre, Guillaume. "Quelques modèles d'équilibre avec asymétrie d'information." Paris 7, 2003. http://www.theses.fr/2003PA077222.
Full textBlanchard, Romain. "Application du contrôle stochastique en théorie de la décision avec croyances multiples et non dominées en temps." Thesis, Reims, 2017. http://www.theses.fr/2017REIMS006/document.
Full textThis dissertation evolves around the following three general thematic: uncertainty, utility and no-arbitrage.In the first chapter we establish the existence of an optimal portfolio for investor trading in a multi-period and discrete-time financial market without uncertainty and maximising its terminal wealth expected utility. We consider general non-concave and non-smooth random utility function defined on the half real-line. The proof is based on dynamic programming and measure theory tools.In the next three chapters, we introduce the concept of Knightian uncertainty and adopt the multi-prior non dominated and discrete time framework introduced in [25]..In this setting, in the second chapter we study the notion of quasi-sure no-arbitrage introduced in [25] and propose two equivalent definitions: a quantitative and geometric characterisation. We also introduce a stronger no-arbitrage condition that simplifies some of the measurability difficulties.In the third chapter, we build on the results obtained in the previous chapter to study the maximisation of multiple-priors non-dominated worst-case expected utility for investors trading in a multi-period and discrete-time financial for general concave utility functions defined on the half-real line unbounded from above. The proof uses again a dynamic programming framework together with measurable selection.Finally the last chapter formulates a utility indifference pricing model for investor trading in a multi-period and discrete-time financial market. We prove that under suitable condition the multiples-priors utility indifference prices of a contingent claim converge to its multiple-priors superreplication price
Gersin, Malincha. "La Vie théâtrale lyonnaise d'un Empire à l'autre : Grand-Théâtre et Célestins, le temps du Privilège (1811-1864)." Lyon 2, 2007. http://theses.univ-lyon2.fr/documents/lyon2/2007/gersin_m.
Full textBetween 1806 and 1864, the preferential regime for theatre set up by Napoleon I created a framework for theatrical life in Lyons. Its implementation saw the Grand-Théâtre and the Théâtre des Célestins come together under one management, run and supervised by the local authorities. In three acts, this research aims to understand the impact of the preferential regime in Lyons, to appreciate the rhythm of theatrical life and the social exchange between the spectators of the two theatres. Throughout the period of preferential treatment, the local authorities tried to apply the rules of the « preferential regime”, imposed by the State, to 29 unstable theatrical companies which often ended in bankruptcy. Nonetheless, the main goal of theatrical entrepreneurs, now employed by the local authorities, was to make sure that every evening the theatres were open, and that the actors could perform the plays in the repertoire in front of an often scant and mixed audience. The ticket holders felt they had a right of opinion concerning the commitment of the actors. The weeks following the annual opening, the public used and abused this « right » under the strict surveillance of the theatrical police. All these groups, authorities, theatre managers, and spectators made up the theatrical life in Lyons during the first half of the 19th century. As in many provincial towns, the history of Lyons theatre life has been neglected. However, the Capital of Gaul had indeed a theatrical life, which deserves its place, as much as any other, in the cultural history of the nation
Mestre, Roman. "Analyse temps-fréquence de la droite de marché : une application au marché français sur données journalières de 2005 à 2015." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTD008.
Full textIn this thesis, we study the relevance of using the wavelet methodology to improve the results of the Capital Assets Pricing Model (CAPM). The equation of this model, the Market Line, establishes a relationship between the returns of a stock and those of the Market. The Beta estimate of this Line provides the sensitivity of the stock to Market’s movements. This parameter is commonly used as a systematic measure of risk for classifying equities. Under the hypothesis of homogeneity of agents behaviours, the investors have same investment horizons, and therefore they estimate a similar Beta without considering their characteristics. Moreover, the Beta is commonly estimated by OLS supposing its stability over time. The various criticisms of the CAPM have led to extensions and improvements that are presented in a first chapter. On the one hand, it appears that, in the model, it is not possible to assess the dynamics of risk over time. On the other hand, it is also impossible to take into account the heterogeneity of the agents. The wavelet appreciation of the time-frequency instability of the CAPM Beta represents the heart of this research. The use of discrete wavelets, in the context of the CAPM, is a usefull methodology to study the risk in the time-frequency domain according differents investing horizons. The application to the French market with daily data from 2005 to 2015 is the main part of this research in the univariate (Chapter 2) and multivariate (Chapter 3) cases. Beta estimated by OLS and those estimated for various horizons, related to frequency decomposition, are significantly different. It is therefore possible to use this type of decomposition to extend the possibilities of risk analysis. The analysis of the time-frequency dynamics of the systematic risk is obtained by associating the Rolling Windows with the discrete wavelets. Despite these improvements, OLS- Betas do not have BLUE properties because of there are anomalies in the estimation residuals. The use of the ARMA-GARCH family processes partially corrects the Beta estimate. So, it is possible to to develop a simple correction of OLS-Beta. The approach developed in Chapter 3 includes the multivariate nature of the regression by considering the addition of explanatory variables in the equation as additional sources of risk. Oil and gold, selected according to an analysis of different works, associated with discrete frequency decompositions lead to the estimation of the Betas of a Time-Frequency Multi-Betas Model. The results confirm the differentiation of parameters across frequency bands and provide a lot of information for risk analysis. In this same chapter, we use continuous wavelets to study in a more precise way the CAPM and its robustness. In this context, the coherence and the phase specify the Equity-Market relationship as well as the weight of Systematic Risk in the total risk. We show that Equity-Market links are neither homogeneous nor unilateral as assumed by the CAPM. The intensity and the direction of the links depend on the time and are differentiated according to the frequencies. Therefore, we propose to use a time- frequency-variable estimation of Beta, which leads to numerous results and information on the time-frequency evolution of risk. This research opens up new perspectives on the evaluation of Systematic Risk and its insertion in new computational technologies, by their computing capacities, will greatly improve the interpretation of its results
Alpman, Anil. "Consumer behavior, household production and shadow prices : applications to the allocation of time and to social interactions." Thesis, Paris 1, 2016. http://www.theses.fr/2016PA01E045.
Full textMany resources cannot be exchanged and priced on the markets but they can be valued by shadow prices. In this thesis, I theoretically derive 3 kinds of shadow prices and structurally estimate them at the individual level to analyze their effects on the behavior and the welfare of individuals. I combine the consumer expenditure and the American time use surveys (2004-2012) using a statistical matching procedure that overcomes the shortcomings of standard procedures. I first estimate the shadow price of time, which involves several steps where a utility function is estimated as a proxy for a new kind of well-being measure that depends on the amounts of time and market goods: it is shown that the reallocation of the forgone market work hours absorbed 30% of the Great Recession's negative welfare impact. Then, I compute the shadow prices of 5 home-produced activities (e.g., leisure and food) to estimate the elasticities of the time allocation functions (including the labor supply) and the demand elasticities of the activities with respect to the full income, the shadow price of time, the shadow price of the activities, the wage rate, and the price of market goods. The third shadow price addressed in this thesis yields the costs of under/unemployment as a function of demographic characteristics, which is essential for evaluating the opportunity cost of unemployment policies and for setting the level of unemployment benefits. Finally, I propose a reformulation of the theory of social norms where I analyze the determinants of the disobedience level to social norms along the effects of the disobedience on shadow prices, individuals' behavior, and, eventually, on economic growth
Kanouni, Hassani Rams, and Hassani Rams Kanouni. "Impact de l'incertitude sur la gestion de l'environnement et des ressources naturelles : une analyse en temps continu par la programmation dynamique et les options réelles." Doctoral thesis, Université Laval, 2006. http://hdl.handle.net/20.500.11794/18709.
Full textCette thèse utilise la mathématique et la théorie de l'économie financière pour étudier la gestion de la pollution, la valeur d'une centrale électrique thermique et le prix d'une ressource naturelle non renouvelable. Elle est composée de trois essais. Le premier essai analyse la décision d'investir afin de réduire les émissions d'un polluant de type stock sous deux types d'incertitude : économique (ce qui rend les émissions stochastiques car elles sont une conséquence de l’activité économique) et environnementale (ce qui affecte directement le stock de polluant). La littérature économique récente semble indiquer qu'en présence d'incertitude et de coûts irréversibles, l'action d’investir devrait être retardée. Nous utilisons des concepts de la théorie des options réelles et formulons ce problème de planificateur central comme un problème d'arrêt optimal en temps continu. Nous dérivons la règle d'arrêt correspondante et montrons que lorsque l'incertitude environnementale ou économique est suffisamment élevée, il est optimal d'investir immédiatement pour réduire les émissions. Ces résultats ont des implications sur la gestion des stocks de polluant stock, notamment pour la gestion des gaz à effet de serre. Le second essai s’appuie sur la théorie des options réelles pour évaluer la valeur d’une centrale électrique dans un marché déréglementé. Ce travail est motivé par la vague de déréglementation qui a sévi récemment dans le secteur de l'électricité. La littérature existante cherche plutôt à trouver la valeur d'option de vente d'une certaine quantité d'électricité à un moment donné dans le futur ou modélise la décision d'opérer une centrale électrique par simulation. Notre formulation considère qu'une usine de production d'électricité peut être dans deux états (à l'arrêt ou en fonctionnement); dans chaque état, la firme possède une option « call américaine » sur l'autre état et le passage d'un état à l'autre est coûteux. Nous supposons que le « spark spread » suit un processus de retour à la moyenne avec changements de régime et nous utilisons des données du marché californien pour notre application empirique. Nous montrons qu'avec la prise en compte des coûts de suspension et de génération d'électricité, il y a un effet d'hystérésis: les seuils de spark spread pour les décisions de produire et d'arrêter la production diffèrent. Nous utilisons ensuite ces règles de fonctionnement à court terme dans une méthodologie basée sur des simulations Monte Carlo pour estimer la valeur de la centrale. Le troisième essai rend plus générale la formulation du modèle de Gaudet et Khadr (1991) en considérant une fonction d'utilité non espérée afin de dériver une généralisation de la règle d'Hotelling. Alors que dans le cadre de l'utilité espérée la différence entre le taux de rendement espéré de l'actif risqué (la ressource non renouvelable) et celui d'un actif certain égale une prime de risque qui ne dépend que du coefficient d'aversion relative au risque et de la covariance entre la consommation et le rendement de l'actif risqué, cela n'est plus vrai avec notre fonction d'utilité plus générale. Nous montrons que la prime de risque dépend alors aussi de l'élasticité de substitution intertemporelle (qui n'est plus nécessairement égale à l'inverse du coefficient d'aversion relative au risque), de l'incertitude de l'utilité indirecte et de l'incertitude de l'utilité marginale de la richesse. La prise en compte de ces paramètres additionnels peut avoir des conséquences importantes. Supposons en effet que l'élasticité de substitution intertemporelle soit suffisamment élevée et que l'incertitude de l'utilité indirecte soit suffisamment faible relativement à celle de l'utilité marginale de la richesse. Alors, même si le consommateur est riscophobe et si la covariance entre la consommation et le rendement de la ressource non renouvelable est positive, il est possible que le consommateur exige une prime pour détenir l'actif risqué. Le taux de rendement espéré de ce dernier est inférieur au taux de rendement certain. Ce résultat est bien entendu exclu dans le cas de l'utilité espérée.
Using tools from mathematical finance and economic theory, this thesis studies the impact of uncertainty and irreversibility on decision-making related to the management of pollution, energy production, and the extraction of a non-renewable resource. It consists of three essays. The first essay analyzes the decision to invest to reduce the emissions of a stock pollutant under two types of uncertainty: economic (emissions are stochastic because of changes in economic activity) and environmental (which affects directly the stock of pollutant). A number of recent papers find that the decision to invest to reduce the emissions of a stock pollutant should be delayed in the presence of sunk costs and uncertainty. Using concepts from the theory of Real Options, we formulate a social planning problem in continuous time, derive the corresponding optimal stopping rule, and show that when economic or environmental uncertainty is large enough, it is optimal to invest immediately to reduce emissions. These results have implications for the management of stock pollutants and particularly for global warming. The second essay is concerned with the valuation of energy generating assets in a deregulated electricity market. The recent wave of deregulation initiatives in the electricity industry has created the need to value energy-generating assets in an uncertain environment in order to facilitate their sale. However, a number of authors have noted discrepancies between valuations predicted by a conventional cost-benefit approach and observed transactions. In this chapter, I analyze the importance of explicitly accounting for technological constraints in the generation process by modeling the decision to start and stop the production of electricity by a gas-powered plant. With the inclusion of these constraints, the generator may be in two different states, idle or generating electricity. In either state its operator has a call option to switch to the other state. These options depend on the spark spread (the difference between the price of electricity and the price of the fuel used to generate it, adjusted for equivalent units), which is assumed to follow a mean reverting process with regime changes. I use data from the California deregulated market to estimate the thresholds for starting and stopping production. These results are entered in a simple simulation framework to estimate the value of the electricity-generating asset in a competitive market. I find significant differences between a standard cost-benefit analysis and this Real Options approach. In my third essay, I derive a testable form of the price dynamics of a non-renewable natural resource in the context of a general equilibrium portfolio choice model where the representative agent has a non-expected utility function. The non-renewable nature of the resource introduces an element of irreversibility in the portfolio choice. An analog of Hotelling's rule is derived. In an expected utility framework, the difference between the rate of return of the risky asset (the non-renewable resource) and that of the riskless one equals a risk premium that depends only on the coefficient of relative risk aversion and the covariance between consumption and the return of the risky asset. I show that with this more general specification of the utility function, the risk premium depends also on the instantaneous elasticity of substitution (IES, which is not necessarily equal to the inverse of the coefficient of relative risk aversion), the uncertainty of the indirect utility function and the uncertainty of the marginal utility of wealth. These results have important consequences. If the IES is large enough and if the uncertainty of the indirect utility function is small enough, a risk-averse consumer may be willing to pay a premium to hold the risky asset even though the covariance between its return and consumption is positive. This case is of course excluded in the expected utility framework.
Using tools from mathematical finance and economic theory, this thesis studies the impact of uncertainty and irreversibility on decision-making related to the management of pollution, energy production, and the extraction of a non-renewable resource. It consists of three essays. The first essay analyzes the decision to invest to reduce the emissions of a stock pollutant under two types of uncertainty: economic (emissions are stochastic because of changes in economic activity) and environmental (which affects directly the stock of pollutant). A number of recent papers find that the decision to invest to reduce the emissions of a stock pollutant should be delayed in the presence of sunk costs and uncertainty. Using concepts from the theory of Real Options, we formulate a social planning problem in continuous time, derive the corresponding optimal stopping rule, and show that when economic or environmental uncertainty is large enough, it is optimal to invest immediately to reduce emissions. These results have implications for the management of stock pollutants and particularly for global warming. The second essay is concerned with the valuation of energy generating assets in a deregulated electricity market. The recent wave of deregulation initiatives in the electricity industry has created the need to value energy-generating assets in an uncertain environment in order to facilitate their sale. However, a number of authors have noted discrepancies between valuations predicted by a conventional cost-benefit approach and observed transactions. In this chapter, I analyze the importance of explicitly accounting for technological constraints in the generation process by modeling the decision to start and stop the production of electricity by a gas-powered plant. With the inclusion of these constraints, the generator may be in two different states, idle or generating electricity. In either state its operator has a call option to switch to the other state. These options depend on the spark spread (the difference between the price of electricity and the price of the fuel used to generate it, adjusted for equivalent units), which is assumed to follow a mean reverting process with regime changes. I use data from the California deregulated market to estimate the thresholds for starting and stopping production. These results are entered in a simple simulation framework to estimate the value of the electricity-generating asset in a competitive market. I find significant differences between a standard cost-benefit analysis and this Real Options approach. In my third essay, I derive a testable form of the price dynamics of a non-renewable natural resource in the context of a general equilibrium portfolio choice model where the representative agent has a non-expected utility function. The non-renewable nature of the resource introduces an element of irreversibility in the portfolio choice. An analog of Hotelling's rule is derived. In an expected utility framework, the difference between the rate of return of the risky asset (the non-renewable resource) and that of the riskless one equals a risk premium that depends only on the coefficient of relative risk aversion and the covariance between consumption and the return of the risky asset. I show that with this more general specification of the utility function, the risk premium depends also on the instantaneous elasticity of substitution (IES, which is not necessarily equal to the inverse of the coefficient of relative risk aversion), the uncertainty of the indirect utility function and the uncertainty of the marginal utility of wealth. These results have important consequences. If the IES is large enough and if the uncertainty of the indirect utility function is small enough, a risk-averse consumer may be willing to pay a premium to hold the risky asset even though the covariance between its return and consumption is positive. This case is of course excluded in the expected utility framework.
Vil, Anderson. "Trois essais sur la mesure du coût des enfants." Electronic Thesis or Diss., CY Cergy Paris Université, 2024. http://www.theses.fr/2024CYUN1335.
Full textThis thesis consists of three chapters, each dedicated to a specific aspect of the study of the cost of children. The first chapter, primarily empirical, examines the allocation of resources within single-parent households using British data. The following two chapters adopt a theoretical approach while integrating empirical elements. The second chapter models the impact of children on women's labor supply, relying on the equivalence scale methodology. The third chapter focuses on the full cost of children (both monetary and time-related) and the value of parental time, applying the theoretical model to American data.The first chapter analyzes the cost of children in single-parent households. Specifically, it extends the collective model of Bargain, Donni, and Hentati (2022) to single-adult households and addresses identification issues specific to this context. It then estimates the consumption shares allocated to single parents and their children. Using three sets of UK Expenditure Surveys, two major findings emerge: first, models based on couples tend to underestimate the cost of children in single-parent households due to structural differences; second, family size significantly affects the resources allocated to children in low-income families, a less pronounced effect in high-income families.The second chapter develops a theoretical framework using equivalence scales adapted to labor supply, proposing a general technological function that integrates both the financial and time costs of children without specific consumption data. Empirical results from a sample of single women in the U.S. indicate that, for single mothers, monetary effects dominate time effects. Additionally, the median total cost per child is approximately 17,060.The third chapter proposes a structural framework to measure children's full cost, accounting for both parental time and monetary expenditures. This model differentiates between childcare activities perceived as work and those considered as leisure. A key aspect of our approach is that the price of parental time is not simply equal to the wage but is determined by the substitutability between parental time and purchased childcare services. Empirical analysis based on U.S. working couples' data shows that mothers perceive 68% of this time as work, compared to 53% for fathers. Furthermore, a significant portion of the cost of children borne by parents is non-monetary, underscoring the importance of incorporating time dimensions into the evaluation of parental costs
Lim, T. "Quelques applications du contrôle stochastique aux risques de défaut et de liquidité." Phd thesis, Université Paris-Diderot - Paris VII, 2010. http://tel.archives-ouvertes.fr/tel-00499532.
Full textGueye, Djibril. "Some contributions to financial risk management." Thesis, Strasbourg, 2021. http://www.theses.fr/2021STRAD027.
Full textThis thesis deals with various issues related to quantitative management of financial risks. We are interested, in a first part, in the models of default time in credit risk within the framework of enlargement of filtrations theory. We propose models where the default time can coincide with some instants of economic shocks. We first extend the model of Jiao and Li (2018) in the case where the shocks are not predictable by studying the characteristics of the default time. Secondly, we present the generalized Cox model which is an extension of Lando's (see Lando, 1998). We offer a wide range of examples to ulistate our construction. The second part deals with the construction of volatility surfaces of financial assets under the condition of no arbitrage opportunity (AOA) using kriging methodologies (or Gaussian process regression). Our approach consists in learning kriging on European option prices by taking into account non-arbitrage conditions. These conditions are characterized by shape constraints on prices, namely monotonicity in the direction of maturities and convexity in the direction of strikes. Since these constraints correspond to a finite number of linear inequalities, we adopt a kriging technique under constraints of linear inequalities. For this, we use the method developed by Maatouk and Bay (2016) which is based on the finite-dimensional approximation of the Gaussian process. The Monte Carlo Hamiltonian algorithm of Pakman and Paninski (2014) will be used to simulate the Gaussian coefficients. We propose a method for calculating the Maximum a Posteriori (MAP) of the Gaussian process. We compare our method with those of constrained neural networks and SSVIs
Janvier, Baptiste. "Localisation et repérage temporel des moments forts de la journée du jeune enfant : Effets de l'adjonction d'indications visuelles des "temps forts" données par la montre Prim' Time." Tours, 2003. http://www.theses.fr/2003TOUR2015.
Full textLusivika, Nzinga Clovis. "Estimation d’effets individuels de traitements pris en combinaison dans les études observationnelles." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS218.
Full textRandomized controlled trials cannot be implemented in all situations for estimating effects of therapeutic strategies. Observational studies would then constitute an alternative for evaluating treatment effects. We have a specified interest in four types of methodological difficulties for such studies: 1) confounding by indication ; 2) presence of time-dependent confounding ; 3) The relationship between a given time-dependent treatment and its effect may vary over time ; 4) In real life, patients often receive multiple treatments, sequentially or simultaneously. In this context, the evaluation of individual effects of treatment is a methodological challenge. The overall objective of this thesis was to propose a methodological framework in which these methodological difficulties are accommodated, allowing the individual effects of treatments to be correctly estimated within the context of multi-treatments in an observational study. We evaluated the performance of the marginal structural Cox model when estimating the individual and joint effects of two treatments and showed that it performed well in the presence of three different scenarios of time-dependent confounding. We also showed the importance of estimating the interaction term when exploring the treatment effect from combination therapy. We compared the performance of weighted cumulative exposure marginal structural Cox model with that of a conventional TD WCE Cox model for estimating time-varying effects of treatments without bias in the presence of TD confounding. Our results showed that the WCE Cox MSM performed better and can be applied to real data whatever the strength of time dependent confounding
Cordeiro, Jair Silveira. ""Mais um dia no sistema" : c?digo de conduta pr?prio e normas institucionais no cotidiano de adolescentes privados de liberdade." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2010. http://tede2.pucrs.br/tede2/handle/tede/4673.
Full textEste estudo aborda as intera??es cotidianas de um grupo de adolescentes privados de liberdade numa unidade de interna??o da Funda??o Atendimento S?cio-Educativo do Rio Grande do Sul (FASERS). Este trabalho tem como objetivos analisar: o c?digo de conduta e honra criado e acionado pelos adolescentes durante o per?odo de interna??o; as formas de intera??o entre os adolescentes e os monitores no interior da unidade e as posi??es ocupadas pelos adolescentes no grupo de internos durante a priva??o de liberdade. Para tanto, num primeiro momento reconstru?, sinteticamente, a hist?ria das pol?ticas de aten??o as crian?as e aos adolescentes no Brasil e no Rio Grande do Sul ressaltando o aspecto jur?dico e a cria??o das institui??es que executam o atendimento a esta popula??o. A partir da etnografia realizada no interior de uma unidade de interna??o da FASERS mergulho no cotidiano dos adolescentes privados de liberdade e identifico manifesta??es de um c?digo de conduta e honra que auxilia os adolescentes na organiza??o das suas vidas no interior da unidade. Constato que o recebimento das visitas ? o evento social institucional balizador da constitui??o do c?digo de conduta que permeia diversos aspectos e diferentes momentos do dia a dia destes adolescentes. Em rela??o ?s intera??es entre os adolescentes e os monitores coloco em evid?ncia o fato de que os dois grupos de agentes se relacionam com base no c?digo de honra e nas normas institucionais. Contudo, a intensidade do conv?vio e a necessidade de satisfa??o de seus interesses espec?ficos tornam o cotidiano da interna??o um espa?o de intensa negocia??o e de constru??o de acordos e combina??es. Al?m disso, foi poss?vel concluir que a confian?a entre os internos, os la?os de reciprocidade e as afinidades na realiza??o de algumas atividades cotidianas agregam os internos. Deste modo, a ocupa??o das posi??es no grupo depende da capacidade de ag?ncia e do campo de possibilidade de a??o que cada um constr?i para atuar como l?der, empilhado, humilde ou prestativo. Por fim, o estudo possibilitou compreender que os internos vivenciam o cotidiano institucional a partir de quatro dimens?es: o c?digo de conduta e honra por eles constitu?do; o cumprimento das regras institucionais; as intera??es estabelecidas com os monitores que representam a institui??o e tamb?m a ocupa??o das posi??es de atua??o no interior da unidade.
Batista, Edson Anibal de Macedo Reis. "Estudo da topologia de redes de conex?o funcional no c?rtex sensorial prim?rio e hipocampo durante o sono de ondas lentas." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15492.
Full textCoordena??o de Aperfei?oamento de Pessoal de N?vel Superior
Complex network analysis is a powerful tool into research of complex systems like brain networks. This work aims to describe the topological changes in neural functional connectivity networks of neocortex and hippocampus during slow-wave sleep (SWS) in animals submited to a novel experience exposure. Slow-wave sleep is an important sleep stage where occurs reverberations of electrical activities patterns of wakeness, playing a fundamental role in memory consolidation. Although its importance there s a lack of studies that characterize the topological dynamical of functional connectivity networks during that sleep stage. There s no studies that describe the topological modifications that novel exposure leads to this networks. We have observed that several topological properties have been modified after novel exposure and this modification remains for a long time. Major part of this changes in topological properties by novel exposure are related to fault tolerance
A an?lise da topologia de redes ? uma poderosa ferramenta no estudo de sistemas complexos tal como as redes cerebrais. Este trabalho procura descrever as mudan?as na topologia de redes de conex?o funcional em neur?nios do c?rtex sensorial e do hipocampo durante o sono de ondas lentas (SWS) em animais expostos ? novidade. O sono de ondas lentas ? um importante estado do sono onde h? reverbera??o de padr?es de atividade el?trica ocorridos na vig?lia, tendo com isso papel fundamental na consolida??o de mem?ria. Apesar de sua import?ncia ainda n?o h? estudos que caracterizam a din?mica da topologia de redes de conex?o funcional durante este estado. Tampouco h? estudos que descrevem as modifica??es topol?gicas que a exposi??o ? novidade traz a essas redes. Observamos que v?rias propriedades topol?gicas s?o modificadas ap?s a exposi??o ? novidade e que tais modifica??es se mant?m por um longo per?odo de tempo. A maior parte das propriedades modificadas pela exposi??o ? novidade est? relacionada ? toler?ncia ? falha
Said, Dhaou. "Modèles et protocoles pour les interactions des véhicules électriques mobiles avec la grille." Thèse, Université de Sherbrooke, 2014. http://hdl.handle.net/11143/6055.
Full textGomes, Ricardo Alexandre Saraiva. "Previsão dos tempos do Grande Prémio do Mónaco: Relações de causalidade entre treino e corrida: Abordagem à metodologia VAR." Master's thesis, 2010. http://hdl.handle.net/10071/4296.
Full textThe Grand Prix of Monaco despite the unique features has been scene of reducing the time and seems not to exist limits for driving and using edge techonology. In this Project we apply the methodology of Box & Jenkins univariate model for bulding prediction having this technique high reliability in characterizing the long time series of pole position obtained in practice. Similiarly we use the VAR methodology in order to create a multivariate model of prediction and achieve greater understanding of causality in termsof training and race events during Grand Prix of Monaco.