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Search Results: 1 - 10 of 25659 matches for " Pedro Cruz "
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Almost sure convergence and asymptotical normality of a generalization of Kesten's stochastic approximation algorithm for multidimensional case
Pedro Cruz
Statistics , 2011,
Abstract: It is shown the almost sure convergence and asymptotical normality of a generalization of Kesten's stochastic approximation algorithm for multidimensional case. In this generalization, the step increases or decreases if the scalar product of two subsequente increments of the estimates is positive or negative. This rule is intended to accelerate the entrance in the `stochastic behaviour' when initial conditions cause the algorithm to behave in a `deterministic fashion' for the starting iterations.
Análisis estructural del sector azucarero y el etanol del Valle del Cauca
Cruz Aguilar,Pedro L.;
Cuadernos de Administración (Universidad del Valle) , 2010,
Abstract: analysis of the sector tries to demonstrate that following the international price of sugar above 16 cents a pound, the sugar industry will count on coordinating mechanisms that will allow them to direct their production of cane sugar to the link in the productive chain which will produce the greatest profit margin will produce, without having to increase the number of acres planted in proportion to the increase in sugar exported. this consolidated the sugar industry as one of the driving forces of the colombian economy, but to date has forced the government to lower the percentage of ethanol fuel in gasoline from 10 to 8 percent and casts doubt on the implementation of decrees which substantially increase the percentage of alcohol fuel for engines of 2000 cms3.
LA REFORMA DEL ESTADO DE LAS AUTONOMíAS
Pedro Cruz Villalón
Revista d'Estudis Autonòmics i Federals , 2006,
Abstract: In this article, its author analyzes some of the top current issues on the politicaland legal definition of the Spanish territorial model of state. From thisperspective, the author considers that there are some aspects of the territorialorganization of the state that have neither been tackled properly, norhave been approached from a problem-solving perspective. As a consequence,these aspects have ended up generating structural resistances to the full developmentof political decentralization in Spain. Thus, first of all, the authorsustains that there have been no significant changes on the territorial modelof state since its foundation in 1978; according to the author, thus, the1978 territorial status quo has hardly changed over all this period. Under thispremise, the author studies what he calls the “re-foundation” of the territorialdistribution of power in Spain, that is, the re-definition of the Stateof the Autonomous Communities.Secondly, he advocates for the need to provide a detailed definition of thede facto territorial model of State. In this sense he strongly criticizes theterritorial model of State that would result from both the process leadingto the reform of the Statute of Autonomy of Catalonia and the constitutionalreform proposed by Central Government. Thirdly, he states the importance of dealing with the different political and legal challenges arising fromthe current political debates on the territorial matter, as well as the need tofurther develop a federal paradigm which could serve as a reference for thefuture.
Análisis estructural del sector azucarero y el etanol del Valle del Cauca Structural analysis of the sugar and ethanol sector of the Valle del Cauca
Pedro L. Cruz Aguilar
Cuadernos de Administración (Universidad del Valle) , 2010,
Abstract: Al analizar el sector azucarero y el etanol del Valle del Cauca se pretende demostrar que de seguir el precio internacional del azúcar por encima de 16 centavos de dólar la libra, la industria azucarera contaría con mecanismos de coordinación que le permitirán direccionar su producción de ca a de azúcar hacia este eslabón de la cadena productiva por ser el que mayor margen de utilidad le produce, sin tener que aumentar la cantidad de hects sembradas de manera proporcional al incremento del azúcar exportada. Cuestión que consolido al sector azucarero como uno de los dinamizadores de la economía colombiana, pero a la fecha ha obligado al gobierno a rebajar el porcentaje de alcohol carburante en la gasolina del 10 al 8% y crea dudas sobre el cumplimiento de los decretos que incrementan de manera sustancial el porcentaje de alcohol carburante para los motores de 2000 cms3. Analysis of the sector tries to demonstrate that following the international price of sugar above 16 cents a pound, the sugar industry will count on coordinating mechanisms that will allow them to direct their production of cane sugar to the link in the productive chain which will produce the greatest profit margin will produce, without having to increase the number of acres planted in proportion to the increase in sugar exported. This consolidated the sugar industry as one of the driving forces of the Colombian economy, but to date has forced the government to lower the percentage of ethanol fuel in gasoline from 10 to 8 percent and casts doubt on the implementation of decrees which substantially increase the percentage of alcohol fuel for engines of 2000 cms3.
Upper bounds for Total Cross Section in scattering by an obstacle with impedance boundary conditions
Pedro Cruz,Evgeny Lakshtanov
Physics , 2008,
Abstract: The scalar scattering of a plane wave by a smooth obstacle with impedance boundary conditions is considered. Upper bounds for the Total Cross Section and for the absorbed power are presented.
A stochastic approximation algorithm with multiplicative step size adaptation
Alexander Plakhov,Pedro Cruz
Mathematics , 2005,
Abstract: An algorithm of searching a zero of an unknown undimensional function is considered, measured at a point x with some error. The step sizes are random positive values and are calculated according to the rule: if two consecutive iterations are in same direction step is multiplied by u>1, otherwise, it is multiplied by 01, divergence. Due to the multiplicative rule of updating of the step, it is natural to expect that the sequence converges rapidly: like a geometric progression (if convergence takes place), but the limit value may not coincide with, but instead, approximates one of zeros of the function. By adjusting the parameters u and d, one can reach necessary precision of approximation; higher precision is obtained at the expense of lower convergence rate.
Editorial
Cruz Antonio Pedro de Mello
Psicologia: Teoria e Pesquisa , 2003,
Abstract:
Abstract
Cruz Antonio Pedro de Mello
Psicologia: Teoria e Pesquisa , 2003,
Abstract:
Editorial
Cruz Antonio Pedro de Mello
Psicologia: Teoria e Pesquisa , 2002,
Abstract:
Editorial
Cruz Antonio Pedro de Mello
Psicologia: Teoria e Pesquisa , 2002,
Abstract:
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