Anàlisi i disseny d'un sistema de còpies de seguretat

Aquest treball presenta el disseny d'un sistema de còpies de seguretat per a una empresa de serveis que presenta dades per a altres empreses. Explica les necessitats de l'empresa i les especificacions que ha de complir el sistema de còpies, i estudia les possibles opcions de programari i maquinari i els aspectes legals.

Projecte : Catàleg Videogràfic

L'objectiu d'aquest treball és aplicar en una aplicació funcional algunes de les tecnologies disponibles a les especificacions J2EE. El projecte escollit és l'elaboració d'un catàleg de material videogràfic que permeti emmagatzemar dades informatives sobre els items disponibles i establir relacions entre ells que facilitin la seva localització i identificació.

Matching entre servidor de recursos y consumidores

L'objectiu del TFC consisteix en desenvolupar una aplicació que permeti, per una banda, la definició d'una oferta de recursos; per altra banda el uns usuaris-consumidors puguéssin apuntar-se a dites ofertes i, finalment,

Construcció d'una eina per manipular especificacions UML.

La finalitat d'aquest projecte, consisteix en estudiar detalladament el funcionament del llenguatge d'intercanvi XMI (de l'anglès XML Metadata Interchange), cosí del XML, que transporta al seu codi especificacions del llenguatge UML, de manera que ens permet compartir i enviar aquest UML entre diferents plataformes i eines de manipulació d'aquest llenguatge.

Sistema gestor d'empresa d'excavacions

El següent document recull la documentació tècnica generada durant el desenvolupament del Sistema gestor d'empresa d'excavacions amb tecnologia J2EE i el conjunt de decisions que s'han pres per a portar-lo a terme en el termini previst.Aquest, es divideix principalment en 9 capítols:El primer, en el que es defineixen les característiques principals per a la gestió del projecte.En el segon recull els requeriments, l'anàlisi i el disseny del mateix projecte,acompanyats dels respectius diagrames de casos d'ús i de seqüència.En el tercer es descriu el model de dades utilitzat.El quart està format pel model físic del sistema on es defineix la arquitectura, lescaracterístiques tècniques principals del sistema i de la seva implementació, i les decisions adoptades durant el desenvolupament.El cinquè és un recull dels canvis realitzats sobre el disseny original.El sisè està dedicat a les proves de testeig realitzades un cop finalitzat el desenvolupament.El setè, és un manual d'instal·lació, on es descriuen les especificacions necessàries i els passos a seguir per a poder-lo desplegar.En el vuitè es fa una breu valoració econòmica de l'aplicació conjuntament amb un estudi d'oportunitat.I el novè, on es descriuen les conclusions sobre la realització d'aquest treball de final de carrera.

TFC BD relacionals : sistema gestió d'amonestacions i sancions en centres educatius

La Generalitat de Catalunya, com a projecte de millores dins l'ensenyament, ha decidit preparar una implementació d'un sistema de gestió d'amonestacions i sancions en els centres educatius. Aquest sistema, serà un complement d'altres gestions ja existents als centres educatius, els quals tenen altres funcions diferents a la que es pretén al nou projecte. Aquest treball final de carrera és una proposta per donar una solució vàlida a les necessitats esmentades i cobrint totes les especificacions tècniques, incloses al plec tècnic de condicions.

Atlas interactivo de mortalidad de Andalucía (AIMA)

Until now, mortality atlases have been static. Most of them describe the geographical distribution of mortality using count data aggregated over time and standardized mortality rates. However, this methodology has several limitations. Count data aggregated over time produce a bias in the estimation of death rates. Moreover, this practice difficult the study of temporal changes in geographical distribution of mortality. On the other hand, using standardized mortality hamper to check differences in mortality among groups. The Interactive Mortality Atlas in Andalusia (AIMA) is an alternative to conventional static atlases. It is a dynamic Geographical Information System that allows visualizing in web-site more than 12.000 maps and 338.00 graphics related to the spatio-temporal distribution of the main death causes in Andalusia by age and sex groups from 1981. The objective of this paper is to describe the methods used for AIMA development, to show technical specifications and to present their interactivity. The system is available from the link products in www.demap.es. AIMA is the first interactive GIS that have been developed in Spain with these characteristics. Spatio-temporal Hierarchical Bayesian Models were used for statistical data analysis. The results were integrated into web-site using a PHP environment and a dynamic cartography in Flash. Thematic maps in AIMA demonstrate that the geographical distribution of mortality is dynamic, with differences among year, age and sex groups. The information nowadays provided by AIMA and the future updating will contribute to reflect on the past, the present and the future of population health in Andalusia.

Beyond the Transatlantic Divide: The Multiple Authorities of Standards in the Global Political Economy of Services

This paper explores the plurality of institutional environments in which standards for the service sector are expected to support the rise of a global knowledge-based economy. Despite the careful wording of the World Trade Organization (WTO), a whole range of international bodies still have the capacity to define technical specifications affecting how services are expected to be traded on worldwide basis. The analysis relies on global political economy approaches to extend to the area of service standards the assumption that the process of globalization is not opposing states and markets, but a joint expression of both of them including new patterns and agents of structural change through formal and informal power and regulatory practices. It analyses on a cross-institutional basis patterns of authority in the institutional setting of service standards in the context of the International Organisation for Standardisation (ISO), the European Union, and the United States. In contrast to conventional views opposing the American system to the ISO/European framework, the paper questions the robustness of this opposition by showing that institutional developments of service standards are likely to face trade-offs and compromises across those systems and between two opposing models of standardisation.

Simultaneous estimation of indirect and interaction effects using structural equation models

Interaction effects are usually modeled by means of moderated regression analysis. Structural equation models with non-linear constraints make it possible to estimate interaction effects while correcting formeasurement error. From the various specifications, Jöreskog and Yang's(1996, 1998), likely the most parsimonious, has been chosen and further simplified. Up to now, only direct effects have been specified, thus wasting much of the capability of the structural equation approach. This paper presents and discusses an extension of Jöreskog and Yang's specification that can handle direct, indirect and interaction effects simultaneously. The model is illustrated by a study of the effects of an interactive style of use of budgets on both company innovation and performance

Calibration of a Structured Light-Based Stereo Catadioptric Sensor

Catadioptric sensors are combinations of mirrors and lenses made in order to obtain a wide field of view. In this paper we propose a new sensor that has omnidirectional viewing ability and it also provides depth information about the nearby surrounding. The sensor is based on a conventional camera coupled with a laser emitter and two hyperbolic mirrors. Mathematical formulation and precise specifications of the intrinsic and extrinsic parameters of the sensor are discussed. Our approach overcomes limitations of the existing omni-directional sensors and eventually leads to reduced costs of production

Estudio y diseño de filtros pasobanda y en banda dual basados en resonadores microstrip open-loop acoplados

El proyecto está dedicado al estudio y diseño de filtros paso-banda y en banda dual con tecnología microstrip mediante estructuras resonantes de tipo open-loop. Se ha llevado a cabo el diseño de un filtro paso-banda con respuesta Chebyshev, un filtro pasobanda con ceros de transmisión y un filtro de banda dual para WCDMA y WiFi, empleado el método de diseño para filtros basados en resonadores inter-acoplados. Se presentan los modelos eléctricos de los filtros de RF simulados junto con sus respectivos layouts y se comparan las respuestas obtenidas de los dispositivos con las respuestas ideales. En el proyecto se realiza un estudio del comportamiento de los diferentes tipos de acoplamiento entre resonadores open-loop en función de la geometría de la estructura. Las tendencias de comportamiento de los acoplamientos permiten el diseño y colocación de los resonadores para satisfacer las especificaciones del filtro.

Análisis de patrones de navegación de los estudiantes dentro del Campus UOC

Este Trabajo de Fin de Carrera presenta la especificación de un proceso para el análisis de patrones de navegación a partir de los ficheros de log del Campus Virtual de la UOC.

Using parthenogenetic lineages to identify advantages of sex

The overwhelming predominance of sexual reproduction in nature is surprising given that sex is expected to confer profound costs in terms of production of males and the breakup of beneficial allele combinations. Recognition of these theoretical costs was the inspiration for a large body of empirical research-typically focused on comparing sexual and asexual organisms, lineages, or genomes-dedicated to identifying the advantages and maintenance of sex in natural populations. Despite these efforts, why sex is so common remains unclear. Here, we argue that we can generate general insights into the advantages of sex by taking advantage of parthenogenetic taxa that differ in such characteristics as meiotic versus mitotic offspring production, ploidy level, and single versus multiple and hybrid versus non-hybrid origin. We begin by evaluating benefits that sex can confer via its effects on genetic linkage, diversity, and heterozygosity and outline how the three classes of benefits make different predictions for which type of parthenogenetic lineage would be favored over others. Next, we describe the type of parthenogenetic model system (if any) suitable for testing whether the hypothesized benefit might contribute to the maintenance of sex in natural populations, and suggest groups of organisms that fit the specifications. We conclude by discussing how empirical estimates of characteristics such as time since derivation and number of independent origins of asexual lineages from sexual ancestors, ploidy levels, and patterns of molecular evolution from representatives of these groups can be used to better understand which mechanisms maintain sex in natural populations.

A Formal Framework for Specifying, Reusing and Implementing Learning Processes. First level

This file contains the ontology of patterns of educational settings, as part of the formal framework for specifying, reusing and implementing educational settings. Furthermore, it includes the set of rules that extend the ontology of educational scenarios as well as a brief description of the level of patters of such ontological framework.

How effective are policies to reduce gasoline consumption? evaluating a quasi-natural experiment in Spain

Using a panel of 48 provinces for four years we empirically analyze a series of temporary policies aimed at curbing fuel consumption implemented in Spain between March and June 2011. The first policy was a reduction in the speed limit in highways. The second policy was an increase in the biofuel content of fuels used in the transport sector. The third measure was a reduction of 5% in commuting and regional train fares that resulted in two major metropolitan areas reducing their overall fare for public transit. The results indicate that the speed limit reduction in highways reduced gasoline consumption by between 2% and 3%, while an increase in the biofuel content of gasoline increased this consumption. This last result is consistent with experimental evidence that indicates that mileage per liter falls with an increase in the biofuel content in gasolines. As for the reduction in transit fares, we do not find a significant effect for this policy. However, in specifications including the urban transit fare for the major cities in each province the estimated cross-price elasticity of the demand for gasoline -used as a proxy for car use- with respect to the price of transit is within the range reported in the literature. This is important since one of the main eficiency justification for subsidizing public transit rests on the positive value of this parameter and most of the estimates reported in the literature are quite dated.