Les monnayages celtiques des peuples turon et carnute n’ont jamais fait l’objet d’une synthèse approfondie, c’est pourquoi nous en avons fait notre sujet d’étude. Notre propos porte sur la monétarisation et le développement de la monnaie dans la Loire moyenne. Cette zone est fondamentale pour la compréhension du fonctionnement des systèmes d’échanges en Gaule mais aussi entre la Méditerranée et le nord de l’Europe à La Tène finale. Ces réseaux d’échanges ont pu être mis en lumière une fois qu’un référentiel typo-chronologique a été établi pour chaque territoire avec pour focale à la fois l’origine et la fonction de la monnaie. Nous avons pu mettre en lumière la précocité des monnayages de potin et de bronze ainsi que des zones d’émission qui se sont modifiées entre le IIe et le Ier siècle avant notre ère. / The celtic coinages of peoples turon and carnute never been a synthesis more go deeper, so we made our subject of study. Our speech is on apperance and development of money in the average Loire. This zone is fundamental for the understanding of the functioning of the systems of exchanges in Gaul but also between the Mediterranean Sea and the North of Europe in final La Tène. These networks of exchange were revealed when a typo- chronological reference table was established for every territory whilst focussing on the origin and function of the money as well. We were able to shed light on the precocity of potin and bronze coinages as well as emission zones that have changed between the second and the first century before our era.

The main objective of this thesis is to analyze selected sectors of the European capital market by means of methods of technical and fundamental analysis. Based on the results obtained for each frame exchanges, industry sectors and the best investment strategy. The first part deals with the theoretical description of securities to capital markets, investment strategies, methods of assessment of the securities in the capital markets, the theory of efficient markets, market testing and evidence of their effectiveness. On the European stock market index, including the German DAX30 randomly selected ninety nine companies with data for the period 2006 {-} the 2011th The work on the basis of a confirmed capital market inefficiencies can be found active investment strategy to achieve above average returns.

Tax is mandatory payment which is written in the law. Taxes are gathered in public budget. Public badget is ineffective and non ? equivalent. It is unilateral obligatory. Payer has no right to get money back from this system. Taxes are good for gathering money for needs of states and for stimulation of household behavior and firm behavior. Target of it is to remove defficiencies of economy.

The aim is to identify the impact of adopting the euro in the context of selected legislative changes and to analyze the macroeconomic consequences on the national economy, including regional interpretations for South Bohemia in the comparative use of macroeconomic data from Slovakia and region of Banská Bystrica like the economy as close demographically, culturally and economically.

The aim of this work was to analyze selected branch from the stock market through technical and fundamental analysis. The target is to formulate the most appropriate investment strategy for each sector. The starting point for selecting appropriate investment strategy is inefficient market hypothesis. Selection of the investment strategy, depend on the current economic situation. Based on given results, it is not recommended to use any of the strategies. However, it can propose a suitable investment portfolio. The selected investment portfolio is certainly dependent on many factors. Among these factors belongs the current economic situation and investor´s attitude to risk. Choosing an investment strategy is also influenced by the investor's own attitude to the theory of efficient markets. Investors will opt for active or passive investment strategy on the basis of their opinion.

The aim of this diploma work was to analyze a selected segment of the stock exchange market using the theory of market efficiency and the methods of technical and fundamental analysis, to form an optimal investment strategy on the basis of the findings. The American stock exchange market was analyzed. Six different segments of the capital market were selected ? gold, oil and gas pipelines, steel and iron, car parts, food and telecommunication services. Each segment was represented by eight companies. The general characteristics of the companies were compared according to their profits, degree of risk, alpha and beta coefficients. Fundamental analysis was used to monitor the correlation between future profits for 2012 and alpha coefficients for the period 2007 ? 2011. The theory was proven ? at low levels of future profits, high levels of alpha coefficients were measured and vice versa - at high levels of future profits, low levels of alpha coefficients were measured. During efficiency tests, runs tests and correlation tests were monitored. During runs tests, the number of turns of a real file was compared with the number of runs of a simulated file; no distinctive variances were identified in the monitored stock titles. Forms of market efficiency were proven during the correlation tests and runs tests. The methods of technical analysis used were sliding averages, RSI indicators and Momentum. Trading on the basis of technical analysis is not completely possible because we did not succeed in finding an existing optimal strategy. If an optimal strategy works out it is regardless of the segment?s characteristics. I recommend a passive strategy with regards to the fundamental analysis.

My thesis is focused on the construction of automated trading system and evaluation of its trading with selected commodities.

Cette thèse présente une étude de la structure de solutions de polyélectrolytes (PEs) dans les liquides ioniques (LIs) et de la structure locale des LIs en présence de PEs. Les techniques de diffusion de rayons X et de neutrons ont été principalement utilisées pour cette étude. Dans une première partie, la capacité des LIs à former des « clusters » à l’échelle nanoscopique est démontrée. Dans une seconde partie, l’influence de la nature des contreions et du solvant sur le comportement du polystyrène sulfonate (PSS) en solution est abordée. La conformation moyenne du PSS et son état de dispersion dans les milieux aqueux et organiques sont alors explorés dans une troisième partie. Une étude similaire pour le cas spécifique des milieux LIs est présentée dans une quatrième partie. Finalement, d’autres polymères, chargés ou neutres, en solution dans les LIs, sont considérés dans une cinquième et dernière partie. / In this thesis the structure of polyelectrolyte (PE) solutions in ionic liquids (ILs) and mutual influence of bothcomponentsthe local structure of the latter in the presence of PEs are studied. X-ray and neutron scatteringtechniques have been mainly used for the present investigation. In a first part, the ability of considered ILs toform clusters at nanoscale is demonstrated. In a second part, the influence of the nature of counterions andthe solvent on the polystyrene sulfonate (PSS) behavior in solution is tackled. PSS average conformation anddispersion state in aqueous and organic media are then explored in a third part. A similar investigation, carriedout on the specific case of PSS in IL media, is described in a fourth part. Finally, other polymers, both chargedand neutral, in IL solutions are considered in a fifth and last part.

Orientador: Masayoshi Tsuchida / Banca: José Manoel Balthazar / Banca: Waldemar Donizete Bastos / Resumo: Nesta dissertação vamos fazer uma análise do sistema pêndulo eletromecânico utilizando a teoria de perturbações através dos métodos da média e múltiplas escalas. Nosso objetivo é obter soluções analáticas aproximadas para o sistema e fazer análise dos casos de ressonâncias internas, alám de estudar a estabilidade dos estados estacionários. O sistema pêndulo eletromecânico tem uma dinâmica muito rica, pois apresenta curvas características dos efeitos de histerese, fenômenos de saltos nas amplitudes dos movimentos realizáveis, curvas com características mole e dura ("softening e hardening") e, além disso, diversas ressonâncias internas. Devido a complexidade das equações do sistema pêndulo eletromecânico, elas são difíceis de serem tratadas analíticamente, já que existe iteração ressonante entre as três partes (bloco, motor e pêndulo), e não podemos restringir o estudo das interações ressonantes à apenas duas partes e desprezar a outra parte. Neste trabalho analisamos o caso em que existe interação ressonante entre o bloco e o motor, mas sem interação ressonante com o pêndulo, mas, no entanto, sem desprezar os efeitos do movimento do pêndulo. Em seguida, discutimos a possibilidade de efeitos de saltos nas amplitudes dos movimentos realizáveis, apresentamos alguns pontos onde o sistema perde a estabilidade, já que a discuss~ao sobre comportamento geral do sistema érestrito a variedade central, e analisamos a estabilidade dos pontos fixos tomando como exemplo o estudo feito por Kononenko. A estabilidade dos pontos fixos do sistema é feita pela utilização do critério R-H, juntamente com a teoria da variedade central já que, no caso analisado, existe auto valor zero / Abstract: In this work we study the eletromechanical pendulum system with pertubation theory. We use the average method and the multiple scales method to get a approximate analytic solution for the problem, and analyse the various internal resonances and the stationary states stability. The eletromechanical pendulum is a very complex dynamical system and it shows very interesting e®ects such as histeresis, jump phenomenon, curves of hardening and softening type and, also, various kinds of internal resonances. The equations of the system are very complicated and so they are very hardy to study in an analytic way, because there is resonant interaction between the three components parts of the system and we can't restrict our study to interactions of just two parts of the system. In this work we analyse the case of resonant interaction between the block and the load without resonant interaction between the block and pendulum, but taking in account the pendulum e®ects. We treat the possibility of jump phenomenon, some points where the system loose stability are localized, and we analyse the stability of the stationary states as done by Kononenko. The analysis of stability of the stationary states is done by Routh-Hurwtiz criterion(R- H criterion) and center manifold, because the Jacobian matrix has an eigenvalue with zero real part / Mestre

[pt] Uma ferramenta importante na avaliação de políticas econômicas é a estimação do efeito médio de um programa ou tratamento sobre uma variável de interesse. A principal dificuldade desse cálculo deve-se µa atribuição do tratamento aos potenciais participantes geralmente não ser aleatória, causando viés de seleção quando desconsiderada. Uma maneira de resolver esse problema é supor que o econometrista observa um conjunto de características determinantes, a menos de um componente estritamente aleatório, da participação. Sob esta hipótese, conhecida como Ignorabilidade, métodos semiparamétricos de estimação foram desenvolvidos, entre os quais a imputação de valores contrafactuais e a reponderação da amostra. Ambos são consistentes e capazes de atingir, assintoticamente, o limite de eficiência semiparamétrico. Entretanto, nas amostras frequentemente disponíveis, o desempenho desses métodos nem sempre é satisfatório. O objetivo deste trabalho é estudar como a combinação das duas estratégias pode produzir estimadores com melhores propriedades em amostras pequenas. Para isto, consideramos duas formas de integrar essas abordagens, tendo como referencial teórico a literatura de estimação duplamente robusta desenvolvida por James Robins e co-autores. Analisamos suas propriedades e discutimos por que podem superar o uso isolado de cada uma das técnicas que os compõem. Finalmente, comparamos, num exercício de Monte Carlo, o desempenho desses estimadores com os de imputação e reponderação. Os resultados mostram que a combinação de estratégias pode reduzir o viés e a variância, mas isso depende da forma como é implementada. Concluímos que a escolha dos parâmetros de suavização é decisiva para o desempenho da estimação em amostras de tamanho moderado. / [en] Estimation of mean treatment effect is an important tool for evaluating economic policy. The main difficulty in this calculation is caused by nonrandom assignment of potential participants to treatment, which leads to selection bias when ignored. A solution to this problem is to suppose the econometrician observes a set of covariates that determine participation, except for a strictly random component. Under this assumption, known as Ignorability, semiparametric methods were developed, including imputation of counterfactual outcomes and sample reweighing. Both are consistent and can asymptotically achieve the semiparametric efficiency bound. However, in sample sizes commonly available, their performance is not always satisfactory. The goal of this dissertation is to study how combining these strategies can lead to better estimation in small samples. We consider two different ways of merging these methods, based on Doubly Robust inference literature developed by James Robins and his co-authors, analyze their properties and discuss why they would overcome each of their components. Finally, we compare the proposed estimators to imputation and reweighing in a Monte Carlo exercise. Results show that while combined strategies may reduce bias and variance, it depends on the way it is implemented. We conclude that the choice of smoothness parameters is critical to obtain good estimates in moderate size samples.