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Publications (66)
Resumen Los liberales de todas las épocas han concedido siempre una gran importancia a las ideas en la historia y, en ese sentido, Lord Acton no es ninguna excepción. Al contrario, defendió en sus escritos que las ideas son fuerzas históricas muy poderosas que mueven el mundo. Son las causas de los sucesos políticos y, entre todas ellas, la más imp...
Equality of gender is the 5th objective of sus-tanaible development in United Nations. This equality can be reached working on to measure and to analyze data and to apply politics from the results. On many gender studies , we need to count males and females deciding gender from names, for instance, research papers, job positions, streets, ... The t...
This encyclopedia covers all topics in the philosophy of law and social philosophy, including the history, theory, and leading theorists of the philosophy of law and social philosophy. Featuring specially commissioned entries by an international team of the world's best scholars, including 2000-plus entries ensuring its place as the definitive refe...
The 2020 COVID-19 pandemic in historical perspective. Epidemics and mortality crises in the last three centuries in Castile and Spain
COVID-19 pandemic has brought back many features of the great historical epidemics, and it does so in many countries and societies around the Globe, such as Spain, that had long forgotten the terrible human, economi...
KEY WORDS: Mutual Guarantee Institution, entrepreneur guaranteed loans, default PALABRAS CLAVE: Sociedades de Garantía Recíproca, préstamos garantizados a emprendedores, fallido RESUMEN Las Sociedades de Garantía Recíprocas (SGR) españolas facilitan el crédito a emprendedores a través de los préstamos avalados a largo plazo de forma similar a las I...
RESUMEN En este trabajo se tematiza la llamada "hipótesis del techo de cristal", que sostiene que los niveles de desempeño y de salario de las mujeres están limitados artificialmente por razón de sexo, en vez de corresponder a sus preferencias a la hora de escoger su formación y orientarse laboralmente con arreglo a sus intereses y a la autopercepc...
Resumen: El ciberespacio ha abierto al periodista la posibilidad de acceder a muchas fuentes documentales sin la mediación directa de un profesional de la documentación. Sin embargo, esa autonomía es más una entelequia que una rea-lidad por el inmenso océano que supone Internet y, en especial, aquellas zonas profundas (Internet profunda) a las que...
En los últimos años, se han producido profundos cambios en la medicina, que afectan no solo a sus contenidos, si no también al propio marco en el que se desarrolla la medicina clínica. Estas transformaciones son las que han dado lugar a la aparición de la bioética como una nueva ética médica. En primer lugar, aparece la transformación tecno-científ...
RESUMEN: Entre finales de 2012 y principios de 2013 accedió al poder Xi Jiping y la " Quinta Generación de Dirigentes " de la RPCh. En este artículo vamos a abordar el estudio de esa nueva cúpula y de su mensaje político en tres pasos. En una primera parte planteando las características esen-ciales del Régimen chino; en una segunda quiénes y bajo q...
Resumen Las redes sociales se utilizan para comunicar objetivos del cambio social. Nuestra finalidad es reflexio-nar sobre qué valor aportan los vídeos emitidos a través de YouTube por organizaciones del Tercer Sector para predecir su eficacia por su potencial capacidad viral. Recurriendo al modelo de análisis de contenido predictivo definimos los...
FI). Asimismo ha trabajado como consultora externa para distintas instituciones y empresas. Es miembro activo del Grupo de Estudios Avanzados en Comunicación (GEAC) y participa en proyectos de investigación de este colectivo. (Routledge Publishers, USA), director del jurado de la International German Public Relations Award (Berlin) y director acadé...
We consider Internet-based Master-Worker computations, like SETI@home, where a master process sends tasks, across the Internet, to worker processes; workers execute and report back some result. However, these workers are not trustworthy and it might be at their best interest to report incorrect results. In such master-worker computations, the behav...
Resumen El enfoque de esta investigación es el estudio comparado del léxico del lenguaje épico de las crónicas deportivas de fútbol escritas con el léxico del lenguaje épico de El Poema de Mío Cid, para rastrear la presencia de los léxicos épicos de las crónicas deportivas actuales en El Poema de Mío Cid. Comparamos el léxico bélico, jurídico, lúdi...
PalabRas clave Correos electrónicos: javier.deesteban@urjc.es • arta.antonovica@urjc.es El ecoturismo en cuanto modelo internacional del turismo cultural es responsable con el medio ambiente y tiene un carácter de sos te ni bi li dad, lo cual beneficia a las comunidades locales. Sin embargo, no es simplemente sinónimo de turismo sostenible porque...
What is the future of software evolution? In 1974, Meir M. Lehman had a vision of software evolution being driven by empirical studies of software repositories, and of a theory based on those empirical results. However, that scenario is yet to come. Software evolution studies are often based on a few cases, because the needed information is scarce,...
This paper talks about the need of turning the academic media and communication research into practical proposals for the professional media practice. To achieve this objective, on one hand, we will focus on the immigrants´ representation in media contents, under its consideration as a minority group in the Spanish society. On the other hand, we wi...
This paper deals with a segmentation (classification) problem which arises in the diagnostic and treatment of shoulder disorders. Classical techniques can be applied successfully to solve the binary problem but they do not provide a suitable method for the multiphase problem we consider. To this end we compare two different methods which have been...
Consumption of plastic products has increased dramatically over the past few decades. This trend results in the generation of a vast waste stream that needs to be properly managed to avoid environmental damage. Increasingly stringent European legislation is setting new standards that promote the application of novel recycling technologies capable o...
We study the dynamic bidirectional relationship between firm R&D intensity and corporate diversification, using longitudinal data of Spanish manufacturing companies. Our empirical approach takes into account the censored nature of the dependent variables and the existence of firm-specific unobserved heterogeneity. Whereas we find a positive linear...
The bursting of the Internet Bubble indicated the end of the American economic boom of the second half of the 1990s. The multiple entrepreneurial errors made during the euphoria of that period reinforced the belief that the free market is full of imperfections that lead inevitably to a collapse. This article challenges this belief by analyzing the...
An application of a combination of scheduling theory, simulation modelling and combinatorial optimization is presented. The system under study deals with human resource and assets management to perform maintenance in large support networks. The paper includes the development of the framework of the software tool that will be embedded into the comme...
Autonomic communications seeks to improve networks' and services' abilities to cope with unpredicted change, including changes in topology, load, task, the physical and logical characteristics of the networks that can be accessed, and so forth. Broad-ranging autonomic solutions require designers to account for a range of end-to-end issues affecting...
Resumen La presente ponencia es producto de una investigación mayor denominada "Medios de comunicación y construcción social de la incertidumbre". Tiene como propósito presentar algunos resultados preliminares sobre el concepto de incertidumbre en relación a los discursos de los medios masivos de comunicación e Internet, que surgen a partir de la a...
When characterizing the coding activity of develop-ers on a software project, a common technique is to study the transactions in the versioning system. How-ever, not all transactions are equal, neither represent the same kind (both in quality and quantity) of activity. In this paper, a methodology for classifying the interactions of developers with...
An application of simulation in the design of public transportation facilities is presented. The flow of passengers is modeled using discrete-event simulation, which facilitates the abstraction of the emptying and filling of the passengers into the buses, rather than the more usual continuous simulation for crowd movement. The decision variables in...
In this paper face verification techniques have been performed over 3D data acquired by a Laser Scanner. Advantages of 3D face models have been used to perform a normalization task over each face. First, an original method to detect local features points, based on Spin Images, has been developed. Once local features, as the nose tip or eyes corners...
Libre (free, open source) software is one of the paradigmatic cases where heavy use of telematic tools and userdriven software development are key points. This paper proposes a methodology for measuring and analyzing remotely big libre software projects using publicly-available data from their version control repositories. By means of a tool called...
The concept of source code, understood as the source components used to obtain a binary, ready to execute version of a program, comprises currently more than source code written in a programming language. Specially when we move apart from systems-programming and enter the realm of end-user applications, we find source files with documentation, inte...
For efficient, large scale data mining of publicly available information about libre (free, open source) software projects, automating the retrieval and analysis processes is a must. A system implementing such automation must have into account the many kinds of repositories with interesting information (each with its own structure and access method...
The 3rd edition of Plan B is implemented by changing a Plan 9 system and adding the Plan B technology to it. We changed the system to make it use volatile late bindings by adding several library functions and a dynamic mount table. Also, new system services have been added to support a highly dynamic distributed environment. In this paper we descri...
Position estimation is one of the classical problems in mobile robotics. For instance, robots have to know where in the map they are in order to use maps in any task involving navigation. Even in highly dynamical environments such as the RoboCup competition the robot behaviour or attitude depends on its position in the playground. The goal of this...
This paper describes a teleoperator system developed for the EyeBot robot under a client-server architecture. The teleoperator is made up of two di#erent programs: a server, running on robot's microprocessor, and a client running on a PC. They talk to each other through a serial connection following an specific protocol. The server gathers sensor i...
When facing the problem of teaching the basis of robot control programming to computer science students, apart from the syllabus of the course, some other requirements have to be taken into account. For instance, which are the most appropriate robotic platforms, and which are the best programming tools for teaching it. In this paper we describe the...
Transactions and group communication are two techniques to build fault-tolerant distributed applications. They have evolved separately over a long time. Only in recent years researchers have proposed an integration of both techniques. Transactions were developed in the context of database systems to provide data consistency in the presence of failu...
Nowadays computing environments are made of networked resources. Both resources and the networks used to interconnect them are heterogeneous. During a computing session, new resources are likely to appear and some are likely to go offline or to move to some other place. Applications must combine such resources to perform their tasks. Plan B is a ne...
Middleware platforms are becoming very popular among system developers. Due to its popularity, there is an increasing demand for dependable middleware support. In the past few years several research efforts have concentrated in augmenting the dependability of middle-ware infrastructures which have led to the definition of the FT-Corba specification...
TransLib is an Ada 95 object oriented framework to program fault-tolerant applications, more concretely, it allows to program transactional distributed applications. Transactions are one of the most widely used fault-tolerance mechanisms. They provide data consistency in the presence of failures and concurrent activities. One of the novelties of Tr...
One way to implement a fault-tolerant a service is by replicating it at sites that fail independently. One of the replication techniques is active replication where each request is executed by all the replicas. Thus, the effects of failures can be completely masked resulting in an increase of the service availability. In order to preserve consisten...
Transactions and group communication are two techniques to build fault-tolerant distributed applications. They have evolved separately during a long time. It has been in the last years when researchers have proposed an integration of both techniques. Transactions were developed in the context of database systems to provide data consistency in the p...
Resumen La investigación en Ingeniería difiere sustancialmente, tanto en objeto de estudio como en método, de la investigación en las tradicionalmente llamadas "Ciencias". Mientras las Ciencias se ocupan del estudio de objetos y fenómenos existentes (física, metafísica o conceptualmente), las Ingenierías basan sus estudios en cómo hacer; cómo crear...
1 Este trabajo ha sido subvencionado por la CICyT (proyecto TIC99 – 0947 – C02 – 02) y forma parte del convenio marco de colaboración entre la universidad Rey Juan Carlos y la universidad ORT de Uruguay. RESUMEN. Esta comunicación describe el desarrollo de una plataforma hardware reconfigurable que permite ejecutar la transformada wavelet de forma...
Empirical facts show that housing is one of the most important components of wealth for most families in the U.S.. Also durable goods have important character-istics that can potentially affect the pattern of wealth (asset) accumulation, such as credit constraints, durability amongst others. In order to analyze quantitatively the effects on asset a...
One of the main characteristics of endogenous growth theory is the possibility of international diffusion of technology, which in turn might have a positive impact on economic growth. A review of the literature shows a general agreement about the existence of global positive technology spillovers, but there is no unique or robust conclusion about t...
Resumen: Este trabajo contiene una exposición general de la diversa normativa tanto española como internacional en la que se encuentran regulados los aspectos fundamentales sobre la depreciación de activos intangibles. Las NIC 36 y 38, así como la SIC 32, formarían el cuerpo principal en referencia a la normativa internacional de IASB adoptada por...
RESUMEN: Este artículo tiene como objetivo medir la eficiencia técnica para los países de la Unión Europea para el período 1980-1997 y realizar un análisis comparativo entre los países tratando de determinar el potencial de crecimiento alcanzable en términos de producción dadas las dotaciones de inputs de cada economía. Para ello, nos basaremos en...
Copyright (C) 2002 Gregorio Robles Martínez y Jorge Ferrer Zarzuela. Permitida la redistribución ilimitada de copias literales y la traducción del texto a otros idiomas siempre y cuando se mantenga esta autorización y la nota de copyright. Historial de revisiones Revisión 2.0 -versión V Congreso Hi-spalinux, Octubre 2002 10 de octubre de 2002 La pr...
The Debian GNU/Linux operating system is one of the most popular GNU/Linux distributions, not only among end users but also as a basis for other distribu-tions and embedded systems. Besides being popular, it is also one of the largest software compilations and thus a good starting point to analyze the current state of libre (free, open source) soft...
The transfer of methodologies common in libre (free, open source) sofware development to the domain of educational resources can radically change the way educational content is developed and used, enabling both educational practitioners and students to become actively involved in its creation and distribution. New software architectures and tools a...
del Molino s/n, 28943 Fuenlabrada (Madrid) antonio.baladron@urjc.es Resumen Desde mediados de la década de los 80 el turismo urbano ha sido uno de los sectores turísticos con mayor crecimiento en España; sin embargo, son escasos los estudios sobre la evolución, la promoción y la comercialización de los destinos metropolitanos. Uno de los factores q...
Resumen El modelo lineal, dominante en diferentes planteamientos de filosofía de la tecnología, concibe los procesos tecnológicos como un resultado de la ciencia aplicada, un presupuesto que ha sido objeto de diversas revisiones. En este trabajo se recogen algunos ejemplos de estas críticas, así como las consecuencias que estos resultados podrían t...
En la actualidad, la administración de las TIC en las organizaciones pasa por un adecuado Gobierno y Gestión de las mismas, si bien, en la mayoría de las organizaciones se está abordando exclusivamente la Gestión con marcos como ITIL. La Universidad no es una excepción, y si bien está retrasada respecto a la empresa privada debido a su propia compl...
The Max-Cut problem consists of finding a partition of the graph nodes into two subsets, such that the sum of the edge weights having endpoints in different subsets is maximized. This NP-hard problem for non planar graphs has different applications in areas such as VLSI and ASIC design. In the last decade, consumer graphics cards (GPUs) have increa...
En este capítulo se presenta un algoritmo de búsqueda optimizada aplicado a la calibración de los bucles de control PID de un UAV (Unmanned Ae-rial Vehicle) de cuatro motores. El objetivo es encontrar una parametriza-ción PID que ofrezca estabilidad de vuelo con el mínimo número de casos de prueba.
Resumen. Los sistemas de visión son hoy en día uno de los elementos sen-soriales más utilizados en robótica autónoma. Su principal dificultad radica en extraer información útil de las imágenes capturadas, así como el peque-ño campo visual de las cámaras convencionales. Sin embargo, con cámaras activas es posible revisitar características de un área...
Resumen Por localización se entienden las técnicas que se encargan de solucionar el problema de determinar la posición de un robot en su entorno usando sus propios sensores. En este trabajo se presentará una técnica de localización que pretende aportar una nueva manera de localizar un robot equipado con una cámara en un entorno topológicamente estr...
This paper presents a novel method for deforming the skin of 3D characters in real-time using an underlying set of muscles. We use a geometric model based on parametric curves to generate the various shapes of the muscles. Our new model includes tension under isometric and isotonic contractions, a volume preservation approximation as well as a visu...
The Debian GNU/Linux operating system is one of the most popular GNU/Linux distributions, not only among end users but also as a basis for other distribu-tions and embedded systems. Besides being popular, it is also one of the largest software compilations and thus a good starting point to analyze the current state of libre (free, open source) soft...