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Times of analgesic efficacy of two drugs in the treatment of patients with renal-ureteral colic compared by survival models
Comparación de tiempos de eficacia analgésica de dos fármacos en pacientes con cólico renoureteral empleando modelos de supervivencia
(2015-01-01)
Renourethral colic is a very painful clinical situation that requires a quick diagnosis and treatment. A study was done with patients who were administered two types of analgesics, and whose pain was measured through a ...
An adaptive wavelet-galerkin method for parabolic partial differentia equations
Un método wavelet-Galerkin adaptativo para ecuaciones diferenciales parciales parabólicas
(2015-01-01)
In this paper an Adaptive Wavelet-Galerkin method for the solution of parabolic partial differential equations modeling physical problems with different spatial and temporal scales is developed. A semi-implicit time ...
Selective methodology of population dynamics for optimizing a multiobjective environment of job shop production
Metodología selectiva de dinámica poblacional para optimizar un ambiente multiobjetivo de producción job shop
(2015-03-18)
This paper develops a methodology based on population genetics to improve the performance of two or more variables in job shop production systems. The methodology applies a genetic algorithm with special features in the ...
OPTIMAL PRODUCTION–SALES STRATEGIES FOR A COMPANY AT CHANGING MARKET PRICE
ESTRATEGIAS ÓPTIMAS DE VENTAS Y PRODUCCIÓN PARA UNA COMPAÑÍA EN UN MERCADO CON PRECIOS CAMBIANTES
(2015-01-01)
In this paper we consider a monopoly producing a consumer good of high demand. Its market price depends on the volume of the produced goods described by the Cobb-Douglas production function. A production-sales activity of ...
Special software for computing the special functions of wave catastrophes
Software especial para calcular las funciones especiales de catástrofes de olas
(2015-01-01)
The method of ordinary differential equations in the context of calculating the special functions of wave catastrophes is considered. Complementary numerical methods and algorithms are described. The paper shows approaches ...
Cognitive rhythms and evolutionary algorithms in university timetables scheduling
Ritmos cognitivos y algoritmos evolutivos en la programación de horarios universitarios
(2015-03-18)
The main purpose of this research is to design a methodology based on evolutionary algorithms to university timetable scheduling. This methodology will consider the students’ cognitive rhythms, which establish that teaching ...
Infinitely oscillating wavelets and a efficient implementation algorithm based the FFT
Wavelets infinitamente oscilantes y un eficiente algoritmo de implementación basado en la FFT
(2015-01-01)
In this work we present the design of an orthogonal wavelet, infinitely oscillating, located in time with decay 1/|t|n and limited-band. Its appli- cation leads to the signal decomposition in waves of instantaneous, well ...
Fourier coefficientes computation in two variables, a distributional version
Cáluculo de Coeficientes de Fourier en dos variables, una versión distribucional
(2015-01-01)
The present article, by considering the distributional summations of Euler-Maclaurin and a suitable choice of the distribution, results in repre- sentations for the Fourier coefficients in two variables are obtained. These ...
TABU SEARCH WITH ASPIRATION CRITERION FOR THE TIMETABLING PROBLEM
BÚSQUEDA TABÚ CON CRITERIO DE ASPIRACIÓN PROBABILÍSTICO APLICADA A LA GENERACIÓN DE HORARIOS ESCOLARES
(2015-01-01)
The aspiration criterion is an imperative element in the Tabu Search, with aspiration-by-default and the aspiration-by-objective the mainly used criteria in the literature. In this paper a new aspiration criterion is ...
Algunas soluciones exactas para la ecuación unidimensional de fokker-planck usando simetrías de lie
Some exact solutions for a unidimensional fokker-planck equation by using lie symmetries
(2015-01-01)
La ecuación de Fokker Planck aparece en el estudio de fenómenos de difusión, procesos estocásticos y mecánica clásica y cuantica. Un caso particular de esta ecuación, ut − uxx − xux − u = 0, es analizada empleando el método ...