The construction of fish passes has been a longstanding measure to improve river ecosystem status by ensuring the passability of weirs, dams and other in- channel structures for migratory fish. Many fish passes have a low biological effectiveness because of unsuitable hydrodynamic conditions hindering fish to rapidly detect the pass entrance. There has been a need for techniques to quantify the hydrodynamics surrounding fish pass entrances in order to identify those passes that require enhancement and to improve the design of new passes. This PhD thesis presents the development of a methodology for the rapid, spatially continuous quantification of near-pass hydrodynamics in the field. The methodology involves moving-vessel Acoustic Doppler Current Profiler (ADCP) measurements in order to quantify the 3-dimensional water velocity distribution around fish pass entrances. The approach presented in this thesis is novel because it integrates a set of techniques to make ADCP data robust against errors associated with the environmental conditions near engineered in-channel structures. These techniques provide solutions to (i) ADCP compass errors from magnetic interference, (ii) bias in water velocity data caused by spatial flow heterogeneity, (iii) the accurate ADCP positioning in locales with constrained line of sight to navigation satellites, and (iv) the accurate and cost-effective sensor deployment following pre-defined sampling strategies. The effectiveness and transferability of the methodology were evaluated at three fish pass sites covering conditions of low, medium and high discharge. The methodology outputs enabled a detailed quantitative characterisation of the fish pass attraction flow and its interaction with other hydrodynamic features. The outputs are suitable to formulate novel indicators of hydrodynamic fish pass attractiveness and they revealed the need to refine traditional fish pass design guidelines.

Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-08-05T14:07:22Z No. of bitstreams: 1 JOSÉ MARCOS DA SILVA - DISSERTAÇÃO PPGMAT 2012..pdf: 869095 bytes, checksum: b580f1ec1613b2f42c95d75332734a17 (MD5) / Made available in DSpace on 2018-08-05T14:07:22Z (GMT). No. of bitstreams: 1 JOSÉ MARCOS DA SILVA - DISSERTAÇÃO PPGMAT 2012..pdf: 869095 bytes, checksum: b580f1ec1613b2f42c95d75332734a17 (MD5) Previous issue date: 2012-09 / Capes / Neste trabalho, iremos mostrar a existência de soluções para uma equação de Schrödinger quasilinear. Usaremos o método de Nehari e, minimizando o funcional energia, encontraremos soluções positivas e soluções nodais (que mudam de sinal) para este problema. Provaremos ainda a existência de soluções positivas via Passo da Montanha, com diferentes hipóteses sobre o potencial. / In this paper, we show the existence of solutions for a quasilinear Schrödinger equation. We will use Nehari Method and, minimizing the energy functional, we will find positive and nodal solutions (sign changing) to this problem. We prove also existence of positive solutions via the Mountain Pass Theorem, with different hypotheses on the potencial.

A presente tese tem como tema o fim do passe e a modernização conservadora no futebol brasileiro. O nosso objeto de investigação consiste nos impactos provocados pelo fim do passe no futebol brasileiro no período de 2001 a 2006, buscando apreender as características do processo civilizatório na sociedade brasileira mediante a análise da nova regulamentação das relações entre clubes e jogadores. Tem como recorte empírico 12 clubes de futebol das séries A, B e C do campeonato brasileiro. Analisa-se o novo sistema de transferências de jogadores de futebol que surgiu com a Lei Pelé (nº 9.615/98), os processos de modernização, flexibilização das relações de trabalho e contratuais e a construção de um habitus profissional no futebol brasileiro. O fim do passe é resultado de um conjunto de mudanças na legislação e na estrutura administrativa do futebol, que teve início com a criação do Clube dos Treze, em 1987, consolidando-se com a promulgação da Lei Pelé, e mais especificamente com o artigo que estabelece liberdade de trabalho ao jogador de futebol. Pode-se concluir, então, que mesmo tendo em vista que a Lei Pelé altera o sistema de relações de trabalho dos atletas profissionais, caminha-se para uma regulamentação de característica híbrida, mantendo institutos do antigo passe. Portanto, a modernização conservadora do futebol brasileiro se caracteriza pelo fato de que a extinção do passe pela Lei Pelé (nº 9.615/98) não garantiu a plena liberdade de trabalho para os jogadores devido aos Decretos e Medidas Provisórias que buscam preservar os interesses dos dirigentes e empresários através do sistema de multas rescisórias e indenizações por formação e por promoção do atleta, pois não foi suficiente para abolir os mecanismos de negociação e venda de jogadores e as correspondentes taxas de intermediação. / The present thesis has as subject the end of the pass and the conservative modernization in the Brazilian soccer. Our object of inquiry consists of the impacts provoked for the end of the pass in the Brazilian soccer in the period of 2001 the 2006, searching to apprehend the characteristics of the civilization process in the Brazilian society by means of the analysis of the new regulation of the relations between clubs and players. It has as empirical clipping 12 clubs of soccer of the series A, B and C of the Brazilian championship. One analyzes the new system of transferences of football players that appeared with the Law Pelé (nº 9.615/98), the processes of modernization, flexibility of the contractual relations of work and the professional construction of one habitus in the Brazilian soccer. The end of the pass is resulted of a set of changes in the legislation and the administrative structure of the soccer, that had beginning with the creation of the Club of the Thirteen, in 1987, consolidating itself with the promulgation of the Law Pelé, and more specifically with the article that establishes freedom of work to the football player. It can be concluded, then, that exactly in view of that the Law Pelé modifies the reception system of work of the professional athletes, it is walked for a regulation of hybrid characteristic, keeping justinian codes of the old pass. Therefore, the modernization conservative of the Brazilian soccer if characterizes for the fact of that the extinguishing of the pass for the Law Pelé (nº 9.615/98) did not guarantee the full freedom of work for the players due to the Decrees and Provisional remedies that they search to preserve the interests of the controllers and entrepreneurs through the system of rescissory fines and indemnities for formation and promotion of the athlete, therefore was not enough to abolish the mechanisms of negotiation and sale of players and the corresponding taxes of negotiation.

Submitted by Kym Marcel Martins Ardison (kymmarcel@gmail.com) on 2015-04-06T19:04:20Z No. of bitstreams: 1 Tail Risk - Original.pdf: 817189 bytes, checksum: 02561a6a7cb94d1480a4f78933486df4 (MD5) / Approved for entry into archive by BRUNA BARROS (bruna.barros@fgv.br) on 2015-04-28T12:21:10Z (GMT) No. of bitstreams: 1 Tail Risk - Original.pdf: 817189 bytes, checksum: 02561a6a7cb94d1480a4f78933486df4 (MD5) / Approved for entry into archive by Marcia Bacha (marcia.bacha@fgv.br) on 2015-05-04T12:33:49Z (GMT) No. of bitstreams: 1 Tail Risk - Original.pdf: 817189 bytes, checksum: 02561a6a7cb94d1480a4f78933486df4 (MD5) / Made available in DSpace on 2015-05-04T12:37:02Z (GMT). No. of bitstreams: 1 Tail Risk - Original.pdf: 817189 bytes, checksum: 02561a6a7cb94d1480a4f78933486df4 (MD5) Previous issue date: 2015-02-12 / This paper proposes a new novel to calculate tail risks incorporating risk-neutral information without dependence on options data. Proceeding via a non parametric approach we derive a stochastic discount factor that correctly price a chosen panel of stocks returns. With the assumption that states probabilities are homogeneous we back out the risk neutral distribution and calculate five primitive tail risk measures, all extracted from this risk neutral probability. The final measure is than set as the first principal component of the preliminary measures. Using six Fama-French size and book to market portfolios to calculate our tail risk, we find that it has significant predictive power when forecasting market returns one month ahead, aggregate U.S. consumption and GDP one quarter ahead and also macroeconomic activity indexes. Conditional Fama-Macbeth two-pass cross-sectional regressions reveal that our factor present a positive risk premium when controlling for traditional factors.

Submitted by Gustavo Lôpo Andrade (gustavo.lopo@gmail.com) on 2017-07-18T22:57:10Z No. of bitstreams: 1 Dissertação - Gustavo Lôpo Andrade.pdf: 938243 bytes, checksum: db6777e4df90285643a4ac5de9fb14fa (MD5) / Approved for entry into archive by GILSON ROCHA MIRANDA (gilson.miranda@fgv.br) on 2017-07-21T14:26:04Z (GMT) No. of bitstreams: 1 Dissertação - Gustavo Lôpo Andrade.pdf: 938243 bytes, checksum: db6777e4df90285643a4ac5de9fb14fa (MD5) / Made available in DSpace on 2017-07-27T12:40:59Z (GMT). No. of bitstreams: 1 Dissertação - Gustavo Lôpo Andrade.pdf: 938243 bytes, checksum: db6777e4df90285643a4ac5de9fb14fa (MD5) Previous issue date: 2017-05-30 / In several markets, cost hikes are passed through to consumers to a larger extent than cost reductions. This is a widely document phenomenon in the literature, yet under-explored in Brazil. Collusion is one of the theoretical explanations for that. This study examines pass-through asymmetry in the Brazilian beer market where in 2013 four major brewing companies held over 98% of the market. Our results indicate asymmetry insofar as cost hikes are passed through but cost reductions don’t seem to affect prices. Moreover, supermarkets pass-through cost hikes more strongly than bars and restaurants. / Aumentos de custo são repassados ao consumidor em maior proporção do que reduções de custos em diversos mercados. Esse fenômeno é largamente documentado na literatura, mas ainda é um tema pouco explorado no Brasil. Colusão é uma das explicações teóricas para esse fenômeno. Este estudo objetiva examinar a assimetria na transmissão de preços no mercado de cerveja brasileiro onde, em 2013, quatro grupos de cervejarias detinham mais de 98% do mercado. Os resultados apontam assimetria na medida em que, no curto prazo, aumentos de custo são repassados e reduções de custo parecem não ter efeitos. Além disso, mercados repassam aumentos mais fortemente que bares e restaurantes.

A presente tese tem como tema o fim do passe e a modernização conservadora no futebol brasileiro. O nosso objeto de investigação consiste nos impactos provocados pelo fim do passe no futebol brasileiro no período de 2001 a 2006, buscando apreender as características do processo civilizatório na sociedade brasileira mediante a análise da nova regulamentação das relações entre clubes e jogadores. Tem como recorte empírico 12 clubes de futebol das séries A, B e C do campeonato brasileiro. Analisa-se o novo sistema de transferências de jogadores de futebol que surgiu com a Lei Pelé (nº 9.615/98), os processos de modernização, flexibilização das relações de trabalho e contratuais e a construção de um habitus profissional no futebol brasileiro. O fim do passe é resultado de um conjunto de mudanças na legislação e na estrutura administrativa do futebol, que teve início com a criação do Clube dos Treze, em 1987, consolidando-se com a promulgação da Lei Pelé, e mais especificamente com o artigo que estabelece liberdade de trabalho ao jogador de futebol. Pode-se concluir, então, que mesmo tendo em vista que a Lei Pelé altera o sistema de relações de trabalho dos atletas profissionais, caminha-se para uma regulamentação de característica híbrida, mantendo institutos do antigo passe. Portanto, a modernização conservadora do futebol brasileiro se caracteriza pelo fato de que a extinção do passe pela Lei Pelé (nº 9.615/98) não garantiu a plena liberdade de trabalho para os jogadores devido aos Decretos e Medidas Provisórias que buscam preservar os interesses dos dirigentes e empresários através do sistema de multas rescisórias e indenizações por formação e por promoção do atleta, pois não foi suficiente para abolir os mecanismos de negociação e venda de jogadores e as correspondentes taxas de intermediação. / The present thesis has as subject the end of the pass and the conservative modernization in the Brazilian soccer. Our object of inquiry consists of the impacts provoked for the end of the pass in the Brazilian soccer in the period of 2001 the 2006, searching to apprehend the characteristics of the civilization process in the Brazilian society by means of the analysis of the new regulation of the relations between clubs and players. It has as empirical clipping 12 clubs of soccer of the series A, B and C of the Brazilian championship. One analyzes the new system of transferences of football players that appeared with the Law Pelé (nº 9.615/98), the processes of modernization, flexibility of the contractual relations of work and the professional construction of one habitus in the Brazilian soccer. The end of the pass is resulted of a set of changes in the legislation and the administrative structure of the soccer, that had beginning with the creation of the Club of the Thirteen, in 1987, consolidating itself with the promulgation of the Law Pelé, and more specifically with the article that establishes freedom of work to the football player. It can be concluded, then, that exactly in view of that the Law Pelé modifies the reception system of work of the professional athletes, it is walked for a regulation of hybrid characteristic, keeping justinian codes of the old pass. Therefore, the modernization conservative of the Brazilian soccer if characterizes for the fact of that the extinguishing of the pass for the Law Pelé (nº 9.615/98) did not guarantee the full freedom of work for the players due to the Decrees and Provisional remedies that they search to preserve the interests of the controllers and entrepreneurs through the system of rescissory fines and indemnities for formation and promotion of the athlete, therefore was not enough to abolish the mechanisms of negotiation and sale of players and the corresponding taxes of negotiation.

Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-07-09T17:18:20Z No. of bitstreams: 1 JACQUELINE FÉLIX DE BRITO - DISSERTAÇÃO PPGMAT 2005..pdf: 538695 bytes, checksum: cd410bf0dae8b3cd679e8abc8feef00b (MD5) / Made available in DSpace on 2018-07-09T17:18:20Z (GMT). No. of bitstreams: 1 JACQUELINE FÉLIX DE BRITO - DISSERTAÇÃO PPGMAT 2005..pdf: 538695 bytes, checksum: cd410bf0dae8b3cd679e8abc8feef00b (MD5) Previous issue date: 2005-12 / Neste trabalho, mostramos a existência de soluções para a seguinte classe de problemas elípticos: (Para ver a formula ou equação recomendamos o download da dissertação). As principais ferramentas utilizadas são os Teoremas de Deformação, Passo da Montanha e Ponto de Sela. / In this work, we show the existence of solutions for the following class for elliptic problem: (To see the formula or equation we recommend downloading the dissertation). (To see the formula or equation we recommend downloading the dissertation).

Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-07-10T16:31:37Z No. of bitstreams: 1 LUCIANO DOS SANTOS FERREIRA - DISSERTAÇÃO PPGMAT 2006..pdf: 536780 bytes, checksum: 06d259307302cbc1065d7863b2b8a96b (MD5) / Made available in DSpace on 2018-07-10T16:31:37Z (GMT). No. of bitstreams: 1 LUCIANO DOS SANTOS FERREIRA - DISSERTAÇÃO PPGMAT 2006..pdf: 536780 bytes, checksum: 06d259307302cbc1065d7863b2b8a96b (MD5) Previous issue date: 2006-04 / CNPq / Neste trabalho, mostramos a existência de solução para o problema conhecido como um problema de Dirichlet não-linear. As principais ferramentas são os Teoremas de Deformação, Passo da Montanha e os Métodos de Mínimização. / n this work, we show the existence of solutions for the problem known how the nonlinear Dirichlet of problem. The main tools used are the Deformation, Mountain Pass Theorems and the Minimization of Methods.

Afin de répondre au questionnement général de cette thèse qui traite de la viabilité de l'union monétaire européenne, ce travail est divisé en trois parties. Dans la première, nous analysons notre objet d'étude à un niveau méta. Nous montrons ainsi que l'architecture institutionnelle de la zone euro est axée sur la stabilité monétaire sans proposer formellement des mécanismes d'ajustement aux chocs. La deuxième partie s'intéresse à la question de la synchronisation des économies européennes par l'intermédiaire de deux essais. Nous montrons que d'importantes hétérogénéités demeurent. La troisième partie analyse des questions relatives à la transmission de la politique monétaire. Cela se réalise avec deux essais qui montrent d'une part que la transmission de la politique monétaire dans la zone euro a été fortement perturbée par la crise des subprimes et, d'autre part, que l'influence de la BCE sur les actions des marchés européens est faible. Cette thèse insiste par conséquent sur le caractère incomplet du processus d'intégration économique et monétaire européen et sur sa nécessaire réforme. / The main objective of this thesis is to investigate the problematic of the viability of the European monetary union. This work is divided in three parts. In the first one, we analyse our object of research in order to precise several research axes to study in priority. We show that the European monetary union in mainly focused on the monetary stability without any formal adjustments mechanisms. The second part is focused on the question of the European members' economies synchronisation. We show that large heterogeneities remain. Two essays on the monetary policy pass-through compose the third part. We demonstrate that the interest rate pass-through was affected by the subprimes crisis and that the ECB's influence over the European stock markets is weak. This thesis insists on the fact that the European monetary and economic process of integration is incomplete and should be reinforced.

Submitted by Maike Costa (maiksebas@gmail.com) on 2016-03-31T11:50:13Z No. of bitstreams: 1 arquivototal.pdf: 862531 bytes, checksum: 12bbf225d527fa4e802f15f051e89d88 (MD5) / Made available in DSpace on 2016-03-31T11:50:13Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 862531 bytes, checksum: 12bbf225d527fa4e802f15f051e89d88 (MD5) Previous issue date: 2015-07-30 / Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq / In this work, we study the existence and multiplicity of weak solutions to a class of elliptic problems involving the 1=2-Laplacian operator and a nonlinearity that can has subcritical or critical exponential growth in the Trudinger-Moser sense. For this, as tools, we explore a suitable Trundiger-Moser type inequality for the fractional Sobolev space H1=2(R) and the Mountain Pass Theorem. / Neste trabalho, estudamos a existência e multiplicidade de soluções fracas para uma classe de problemas elípticos que envolve o operador 1=2-Laplaciano e uma na olinearidade que pode ter crescimento exponencial subcrí tico ou crí tico no sentido de Trudinger-Moser. Para isso, como ferramentas, exploramos uma adequada desigualdade do tipo Trundiger-Moser para o espa ço de Sobolev fracion ário H1=2(R) e o Teorema do Passo da Montanha.