¡Qué historia esto de la Estadística!

El desarrollo y el nivel de aplicación de la Estadística como herramienta útil y rigurosa en el campo de la investigación en todas las Ciencias han sido espectaculares en los últimos años. Este progreso ha venido estrechamente vinculado al que ha experimentado el área de la computación, que nos ha llevado a una sociedad absolutamente informatizada. Un segundo factor asociado a este progreso del conocimiento en el ámbito estadístico, ha sido el cambio de actitud experimentado por todos los profesionale

Sustainable development using fuzzy logic

Se utiliza la lógica borrosa para elaborar un modelo útil para analizar el desarrollo sostenible de proyectos. The sustainable development is defined as “the development that satisfies needs of the present time without endangering the capacity of future generations to satisfy theirs”. The term “sustainable development” represents that balance between the satisfaction of present needs and the future ones, offering options of technological and social growth for reducing the risks meaning trends of topical increase. The idea of sustainability can be analysed from three perspectives: environmental, social and economi

Método matemático para evaluar la sostenibilidad utilizando lógica borrosa

En este trabajo se pretende fijar algunas bases para la construcción de un modelo matemático que permita evaluar el grado de sostenibilidad de un proyecto (edificio, barrio, urbanización...). Los criterios de evaluación de proyectos apuestan con especial énfasis en los impactos sociales, ambientales y económicos en el desarrollo local, regional o nacional a través de la definición e identificación de indicadores de sostenibilidad evaluados mediante la lógica borrosa. La utilización de esta herramienta se justifica por el manejo de información incompleta, imprecisa e inconsistent

Nuevas oportunidades para la Universidad: Educación para el desarrollo sostenible a través de la lógica borrosa

Se utiliza la lógica borrosa como herramienta para el desarrollo sostenibl

Immigrants’ Legal Status and Return Intentions: The Case of the Madrid Region.

The main aim of this paper is to analyze the underlying variables of return intention of migrants in Spain’s Madrid Region, who are segmented by their legal status. The microdata source is the Regional Immigration Survey 2011–2012. Using a sample of 563 individuals, we formulated two research questions to determine the importance of legal status in return intentions and to find the main explanatory variables of return intention for both legal and illegal immigrants, such as personal factors, job market success, and social and contextual factors. To answer these research questions, we developed a binomial logit model.post-print382 K

Evaluación de la sostenibilidad de proyectos con lógica borrosa

La sostenibilidad constituye un criterio esencial para evaluar la calidad de un proyecto. En este sentido este trabajo presenta el desarrollo de una metodología y un programa para la evaluación de la sostenibilidad social, económica y medio-ambiental de proyectos para llegar a conseguir una evaluación global de sostenibilidad de dichos proyectos. Tradicionalmente los estudios y evaluación de proyectos se realizan sólo desde el punto de vista económico. Se aplica la lógica borrosa a cada uno de los cálculos que se realizan en el análisis global de la sostenibilidad: valoración de indicadores, la evaluación cuantitativa y cualitativa del impacto que produce un proyecto en los diferentes factores medioambientales, sociales y económicos. Cabe destacar que dependiendo del tipo de proyecto se tendrá un peso de cada indicador y de cada factor distinto. Se ha tomado como base la normativa existente para la evaluación del impacto ambienta

Education for the sustainable development through fuzzy logic

The decision of the General Assembly of the United Nations to establish the period 2005-14 as the Decade of Education for Sustainable Development offers university groups committed to environmental education an opportunity to strengthen its teaching and research efforts, consolidating a model education whose main elements are in full harmony with the paradigm of sustainable development. The University, for its genuine social function, has the mission to contribute to the construction of progressively more sustainable societies, ie, more human, solidarity, equitable and fair. In this respect, and from the standpoint of curriculum design in engineering degrees, this work provides a new approach to introduce students to the project evaluation criteria, with special emphasis on the social impacts, environmental and economic development in the same local, regional or national level through the definition and identification of sustainability indicators evaluated using Fuzzy Logic. The use of this tool is justified by the management of incomplete, inaccurate and inconsistent information. This paper shows that there are benefits to society of the teaching evaluation of sustainable projects, the need for research on a model that allows using Fuzzy Logic to help make decisions on certain aspects of the social, economic or environmental impacts of a project and it is a simple tool to use for non-specialists. Thus, we propose a mathematical model that allows assessment of the social, economic and environmental sustainability of a project. The aim is to provide a mathematical model for integrated sustainability assessment in any action, setting, and for any scale. We talk about a support tool for making decisions, political decisions (political in the sense of what emerges from both public and private fields) or any other type of decision that take into account the sustainability (we cannot think about any not to be taken) and this should be supported, of course, on a technical/scientific ground. Keywords: Sustainable Development, social, economic or environmental impacts of a project in engineering degrees, Fuzzy Logic

Análisis de Fiabilidad de dispositivos según su estructura para la herramienta software EMSI

Cualquier sistema está constituido por una serie de dispositivos interconectados de forma tal que sean capaces de realizar unas funciones concretas. Estos bloques funcionales pueden estar constituidos por una única componente o por complejos subsistemas, dependiendo del tipo de sistema y de las interconexiones en el mismo. El estado de las componentes y la estructura del sistema determinan si un sistema está funcionando o no. En definitiva, el cuantificar la fiabilidad de un sistema requiere, generalmente, considerar la estructura del sistema y la fiabilidad de sus componentes. La herramienta software EMSI está diseñada para realizar evaluación de la fiabilidad y el rendimiento de configuraciones en Sistemas Informáticos (SSII). En este trabajo analizamos la función de distribución empírica de los datos del tiempo hasta el fallo como variables aleatorias realizando los ajustes necesarios a un determinado modelo de probabilidad

Final year project: students and instructors perceptions as a competence-strengthening tool for engineering students

This work indicates the importance of the Final Year Project (FYP) in the strengthening of competences of engineering students. The study also shows which personal competences of students are reinforced most during the FYP process,including the preparation, elaboration, presentation and defence stages. In order to gather information on this subject, a survey was conducted at two different Spanish technical universities—one public and one private—and a comparative analysis was performed of the questionnaires collected. The competence model considered is that used by the Accreditation Board for Engineering and Technology (ABET), since the official title of the public university has been accredited by this model. The results indicate which personal and professional competences of students are reinforced well by undertaking the FYP. Any significant differences in response by university are explained in the study. For validation purposes, the results were contrasted with the instructor’s perspective using the triangulation methodology. Finally, the conclusions drawn will permit the design of new study plans to cope more effectively with the challenges of the FYP in the new Bologna framework

Search algorithm to find optimum strategies to shape political action with subjective assessment

This paper introduces a problem related to decision making and the shaping of political strategies in the course of one term of office, in which the government and the opposition shape their proposals for action on two issues that are relevant for the citizens. A variable component is considered regarding both the relevance of the issues to be dealt with and the strategies that the parties are presumed to adopt. The aim of this study is to find the optimum strategies for the two majority parties of a country, while allowing them to vary their proposals to a certain degree. In addition, the process is dynamic because the proposals are intended to be modified taking into account the other party’s foreseen action. The contribution of this article lies in this approach, as well as in its taking into account variable components. The problem is dealt with from a geometric point of view, and a search algorithm to find optimum strategies is developed