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Publications
Publications (16)
El trabajo tiene como objeto analizar la relación existente entre las distintas situaciones y autopercepciones asociadas a los problemas de salud mental con el consumo de drogas, en una investigación cualitativa y cuantitativa, teniendo como muestra nacional encuestada de 310 (30,1%) mujeres reclusas en semilibertad. Los análisis fueron estadístico...
El trabajo tiene como objeto analizar la relación existente entre las distintas situaciones y autopercepciones asociadas a los problemas de salud mental con el consumo de drogas, en una investigación cualitativa y cuantitativa, teniendo como muestra nacional encuestada de 310 (30,1%) mujeres reclusas en semilibertad. Los análisis fueron: estadístic...
In this paper, we study a new one-dimensional homogeneous stochastic process, termed the Square of the Brennan-Schwartz model, which is used in various contexts. We first establish the probabilistic characteristics of the model, such as the analytical expression solution to Itô’s stochastic differential equation, after which we determine the trend...
In this paper, we study a new family of Gompertz processes, defined by the power of the homogeneous Gompertz diffusion process, which we term the powers of the stochastic Gompertz diffusion process. First, we show that this homogenous Gompertz diffusion process is stable, by power transformation, and determine the probabilistic characteristics of t...
In this paper, festivals and advertising awards are the object of study in order to characterize advertising, with two goals: on one hand, to validate the use of the information registered in international advertising festivals, ads and awards as a good object of study in which to measure the quality production of advertising agencies and countries...
The aim of this study is to model electric power consumption during a period of economic crisis, characterised by declining gross domestic product. A novel aspect of this study is its use of a Gamma-type diffusion process for short and medium-term forecasting – other techniques that have been used to describe such consumption patterns are not valid...
This paper proposes a model of tumour cell growth based on a Gompertz-type nonhomogeneous stochastic diffusion, whose drift coefficient depends on two functions of time that influence the dynamic behaviour of the model, and which can be interpreted in the context of this type of cell growth. The first of these time functions is an immunologic endog...
This paper examines the use of a bivariate stochastic Gamma diffusion model to represent the co-evolution of the stochastic variables CO2 emission and gross domestic product (GDP) in Spain. These variables were selected in view of the strong correlation between them. We compare the results obtained to those provided by the Gamma one-dimensional pro...
In this paper, we model the pattern of natural-gas consumption in Spain, using a new stochastic τ-power gamma diffusion process, defined from a non-homogeneous gamma diffusion process. We study the probabilistic characteristics derived from the corresponding Ito stochastic differential equation and obtain the trend functions. We present a computati...
In this paper, we propose a new model of a three-parameter stochastic growth, based on a stochastic gamma diffusion process, with a third, threshold, parameter. This model can be considered a stochastic version of a three-parameter deterministic growth curve, structured such that its trend function is of the type given by this same growth curve. We...
De todas las herramientas de las que dispone el sistema universitario para formar a sus estudiantes, la tutoría es la que presenta una mayor capacidad para dejar una impronta diferenciadora en los alumnos. Por desgracia, en el sistema universitario español esta herramienta tradicionalmente se ha utilizado de manera muy escasa, y normalmente de form...
que consta de un portal Web y un programa emulador del paquete estadístico SPSS. Este material se ha realizado para la asignatura Bioestadística de 1º de la Licenciatura de Biología de la Universidad de Granada, aunque puede ser utilizado por cualquier persona que necesite iniciarse en el manejo de datos con SPSS. El portal Web incluye diferentes s...
Tesis Univ. Granada. Departamento de Estadística e Investigación Operativa. Leída el 7 de julio de 2005
An interactive guide of the SPSS programme is presented, consisting of a web portal and a programme emulator. From the webpage, students will be able to download didactic material that will introduce them to the programme. The developed SPSS emulator allows the student to learn how to use the programme and guides in the execution of Statistics exer...
