Chantal Maillard. La escritura como estrategia contra el dolor

Chantal Maillard parte de los conceptos, la actitud y la mirada aprendidos en la india para establecer una respuesta al dolor que ha atravesado su vida. La literatura es parte de esa respuesta. Se concibe como un camino de destrucción del ego y sus alredeChantal Maillard departs from the concepts, the attitude and the look learned in the india to establish a response to the pain that has crossed his life. The literature is a part of this response. It is conceived as a way of destruction of the ego and hi

Improvements of Pan-European IDM Architecture to Enable Identity Delegation Based on X.509 Proxy Certificates and SAML

To foster the secure use of telematic services provided by public institutions, most European countries – and others in the rest of the world – are promoting electronic identification systems among their citizens to enable fully reliable identification. However, in today’s globalized environment, it is becoming more common for citizens and entities of a given country, with their own electronic credentials under the legal framework of their country, to seek access to the public services provided by other countries with different legal frameworks and credentials. At present, a number of projects in the European Union are attempting to solve the problem through the use of pan-European identity management systems that ensure interoperability between the public institutions of different Member States. However, the solutions adopted to date are inadequate, for they do not envision all possible cases of user interaction with institutions. Specifically, they fail to address a very important aspect provided in different national legal systems, namely delegation of identity, by which a citizen can authorize another to act on his or her behalf in accessing certain services provided by public institutions. This paper provides a thorough analysis of problems of delegation and proposes an architecture based on X.509 Proxy Certificates and SAML assertions to enable delegation in provision of services in the complex and heterogeneous environment presented by the public institutions of the European Union as a whole

La iglesia de San Pablo Apóstol de Zaragoza. Puesta en uso turístico y cultural de un monumento Patrimonio de la Humanidad

[EN] In 2001 the church of San Pablo de Zaragoza was declared a World Heritage Site by UNESCO for being one of the best examples of Aragonese Mudejar art. The parish was established in the middle of the 13th century and, since then, its architecture and heritage have been expanding and enriching throughout the centuries. Its situation in the San Pablo neighborhood, plunged in the 80s and 90s of the 20th century in a serious process of social and urban degradation, made the temple almost forgotten by the citizens and visitors. In April 2015 the Parish launched a tourist and cultural management plan that we can define as unprecedented in the Zaragoza area. The initiative is intended to facilitate the visit of the Mudejar church and tower, and to promote the knowledge of its rich heritage as an open space for different cultural activities, without forgetting the temple's worship and religious celebrations.[ES] En el año 2001 la iglesia de San Pablo de Zaragoza fue declarada por la Unesco Patrimonio de la Humanidad por ser uno de los mejores ejemplos del arte mudéjar aragonés. La parroquia de San Pablo se constituyó a mediados del siglo XIII y, desde entonces, su arquitectura y su patrimonio fueron ampliándose y enriqueciéndose a lo largo de los siglos. Su situación en el barrio de San Pablo, sumido en los años 80 y 90 del siglo XX en un grave proceso de degradación social y urbanística, hizo que el templo fuera casi olvidado por zaragozanos y visitantes. En abril de 2015 la Parroquia puso en marcha un plan de gestión turística y cultural que podemos definir como inédito en el ámbito zaragozano. La iniciativa está destinada a facilitar la visita de la iglesia y torre mudéjar, y a promover el conocimiento de su rico patrimonio como espacio abierto a diferentes actividades culturales, sin olvidar el culto y las celebraciones religiosas del templo.García Gómez, S. (2021). La iglesia de San Pablo Apóstol de Zaragoza. Puesta en uso turístico y cultural de un monumento Patrimonio de la Humanidad. En I Simposio anual de Patrimonio Natural y Cultural ICOMOS España. Editorial Universitat Politècnica de València. 405-412. https://doi.org/10.4995/icomos2019.2019.11749OCS40541

Aportaciones del Proyecto Votescript a los Esquemas Tradicionales de Voto Electrónico.

This paper hallmarks the most relevant contributions carried out by the authors in the VOTESCRIPT project (TIC2000-1630-C02). The main goal of this project was the analysis, definition and implementation of a system which copes with every phases and elements existing in a process of electronic voting using computer networks. A summary of the main criticisms of electronic voting is presented to disclose that the most relevant voting schemes only take into account a technological perspective, just trying to imitate the conventional voting schemes. Nevertheless in these proposals important aspects such individual and global verification are not properly undertaken. The paper includes the proposed solutions of the project to solve these mentioned problems

Is Europe ready to provide a pan-European Identity Management System?

European public administrations must manage citizens' digital identities, particularly considering interoperability among different countries. Owing to the diversity of electronic identity management (eIDM) systems, when users of one such system seek to communicate with governments using a different system, both systems must be linked and understand each other. To achieve this, the European Union is working on an interoperability framework. This article provides an overview of eIDM systems' current state at a pan-European level. It identifies and analyzes issues on which agreement exists, as well as those that aren't yet resolved and are preventing the adoption of a large-scale model

Contributions to traditional electronic voting systems in order to reinforce citizen confidence

This document provides a general description of the telematic voting scenario designed by the author?s research group. This scenario reinforces verification procedures as key elements to achieve full acceptance of the system on the part of voters. To frame this work, a general overview of electronic voting is given and the conditions entailed by these systems are specified

Regularized multivariate analysis framework for interpretable high-dimensional variable selection

Multivariate Analysis (MVA) comprises a family of well-known methods for feature extraction which exploit correlations among input variables representing the data. One important property that is enjoyed by most such methods is uncorrelation among the extracted features. Recently, regularized versions of MVA methods have appeared in the literature, mainly with the goal to gain interpretability of the solution. In these cases, the solutions can no longer be obtained in a closed manner, and more complex optimization methods that rely on the iteration of two steps are frequently used. This paper recurs to an alternative approach to solve efficiently this iterative problem. The main novelty of this approach lies in preserving several properties of the original methods, most notably the uncorrelation of the extracted features. Under this framework, we propose a novel method that takes advantage of the,2,1 norm to perform variable selection during the feature extraction process. Experimental results over different problems corroborate the advantages of the proposed formulation in comparison to state of the art formulations.This work has been partly supported by MINECO projects TEC2013-48439-C4-1-R, TEC2014-52289-R and TEC2016-75161-C2-2-R, and Comunidad de Madrid projects PRICAM P2013/ICE-2933 and S2013/ICE-2933

Nonnegative OPLS for supervised design of filter banks: application to image and audio feature extraction

Audio or visual data analysis tasks usually have to deal with high-dimensional and nonnegative signals. However, most data analysis methods suffer from overfitting and numerical problems when data have more than a few dimensions needing a dimensionality reduction preprocessing. Moreover, interpretability about how and why filters work for audio or visual applications is a desired property, especially when energy or spectral signals are involved. In these cases, due to the nature of these signals, the nonnegativity of the filter weights is a desired property to better understand its working. Because of these two necessities, we propose different methods to reduce the dimensionality of data while the nonnegativity and interpretability of the solution are assured. In particular, we propose a generalized methodology to design filter banks in a supervised way for applications dealing with nonnegative data, and we explore different ways of solving the proposed objective function consisting of a nonnegative version of the orthonormalized partial least-squares method. We analyze the discriminative power of the features obtained with the proposed methods for two different and widely studied applications: texture and music genre classification. Furthermore, we compare the filter banks achieved by our methods with other state-of-the-art methods specifically designed for feature extraction.This work was supported in parts by the MINECO projects TEC2013-48439-C4-1-R, TEC2014-52289-R, TEC2016-75161-C2-1-R, TEC2016-75161-C2-2-R, TEC2016-81900-REDT/AEI, and PRICAM (S2013/ICE-2933)

Distressed firms, zombie firms and zombie lending: a taxonomy

El presente artículo desarrolla una taxonomía de empresas vulnerables y empresas zombis haciendo uso de una rica base de datos que combina información detallada a nivel de empresa y a nivel de banco-empresa en España. Una empresa vulnerable exhibe tanto insolvencia de flujo de caja como insolvencia de balance, mientras que una empresa zombi es una empresa vulnerable que ha recibido nuevo crédito bancario. En esta investigación se llevan a cabo diversos análisis para testear la validez de estas definiciones. Por ejemplo, se encuentra una correlación negativa entre la situación de vulnerabilidad y la probabilidad de obtener nuevo crédito bancario. Sin embargo, el banco principal de una empresa vulnerable es más reticente a restringir la oferta de crédito a dicha empresa que un banco sin previa exposición a la compañía, lo que puede reflejar los incentivos del banco principal a refinanciar los préstamos a esta para evitar un aumento de la morosidad y de las provisiones. Este apoyo financiero contribuye a que las empresas zombis continúen operando en el mercado durante más tiempo que las empresas vulnerables. Asimismo, la contracción del capital, el empleo y las ventas es mucho más grande en las empresas vulnerables que en las empresas zombis.This papers develops a taxonomy of financially distressed and zombie firms using a rich dataset that combines detailed firm-level and bank-firm level information in Spain. A distressed firm exhibits both cash-flow and balance-sheet insolvency whereas a zombie firm is a distressed company that has received new credit. We carry out several analyses to test the validity of these definitions. For instance, we find that being distressed is negatively correlated with the probability of receiving new credit. However, the main bank of a distressed firm is more reluctant to restrict the supply of credit to such firm than a bank with no previous exposure to the company, which may reflect the incentives of the former to engage in loan evergreening. This financial support contributes to keeping zombie firms afloat for a longer period than distressed firms. Moreover, the contraction in capital, employment and sales is much larger in distressed firms than in zombie firms