Quantitative Stability of Linear Infinite Inequality Systems under Block Perturbations with Applications to Convex Systems

The original motivation for this paper was to provide an efficient quantitative analysis of convex infinite (or semi-infinite) inequality systems whose decision variables run over general infinite-dimensional (resp. finite-dimensional) Banach spaces and that are indexed by an arbitrary fixed set $J$. Parameter perturbations on the right-hand side of the inequalities are required to be merely bounded, and thus the natural parameter space is $l_{\infty}(J)$. Our basic strategy consists of linearizing the parameterized convex system via splitting convex inequalities into linear ones by using the Fenchel-Legendre conjugate. This approach yields that arbitrary bounded right-hand side perturbations of the convex system turn on constant-by-blocks perturbations in the linearized system. Based on advanced variational analysis, we derive a precise formula for computing the exact Lipschitzian bound of the feasible solution map of block-perturbed linear systems, which involves only the system's data, and then show that this exact bound agrees with the coderivative norm of the aforementioned mapping. In this way we extend to the convex setting the results of [3] developed for arbitrary perturbations with no block structure in the linear framework under the boundedness assumption on the system's coefficients. The latter boundedness assumption is removed in this paper when the decision space is reflexive. The last section provides the aimed application to the convex case

Validation of a global satellite rainfall product for real time monitoring of meteorological extremes

The real time monitoring of storms is important for the management and prevention of flood risks. However, in the southeast of Spain, it seems that the density of the rain gauge network may not be sufficient to adequately characterize the rainfall spatial distribution or the high rainfall intensities that are reached during storms. Satellite precipitation products such as PERSIANN-CCS (Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks - Cloud Classification System) could be used to complement the automatic rain gauge networks and so help solve this problem. However, the PERSIANN-CCS product has only recently become available, so its operational validity for areas such as south-eastern Spain is not yet known. In this work, a methodology for the hourly validation of PERSIANN-CCS is presented. We used the rain gauge stations of the SIAM (Sistema de Información Agraria de Murcia) network to study three storms with a very high return period. These storms hit the east and southeast of the Iberian Peninsula and resulted in the loss of human life, major damage to agricultural crops and a strong impact on many different types of infrastructure. The study area is the province of Murcia (Region of Murcia), located in the southeast of the Iberian Peninsula, covering an area of more than 11,000 km2 and with a population of almost 1.5 million. In order to validate the PERSIANN-CCS product for these three storms, contrasts were made with the hyetographs registered by the automatic rain gauges, analyzing statistics such as bias, mean square difference and Pearson’s correlation coefficient. Although in some cases the temporal distribution of rainfall was well captured by PERSIANN-CCS, in several rain gauges high intensities were not properly represented. The differences were strongly correlated with the rain gauge precipitation, but not with satellite-obtained rainfall. The main conclusion concerns the need for specific local calibration for the study area if PERSIANN-CCS is to be used as an operational tool for the monitoring of extreme meteorological phenomena.This work is the result of a postdoctoral contract funded by Saavedra Fajardo programme (Ref. 20023/SF/16) of the Consejería de Educación y Universidades of CARM (Autonomous Community of Murcia Region), by the Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia. The support and availability of information from the Center for Hydrometeorology and Remote Sensing of University of California-Irvine (USA), and from Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA) of CARM are also acknowledged

La coexistencia con la gran fauna es posible

Los grandes carnívoros son un componente fundamental para el mantenimiento de la biodiversidad y el equilibrio de los ecosistemasPeer reviewe

La obra de Amann+canovas+Maruri

Recorrido por la obra del estudio de arquitectura de Aman, Canovas y Marururi a través de uno de sus componentes Andrés Canovas. La conferencia desvela los entresijos de las siguientes obras de arquitectura: El Parque Arqueológico del Molinete en Cartagena, las viviendas sociales de Carabanchel, Madrid, el Museo de Monteaguado en Murcia, las viviendas sociales de Coslada, Madrid, y la Torre Ascensor y edificio de oficinas en Cartagena, Murcia. En cada uno de estos proyectos se investiga con distintos materiales de construcción que intentan conferir al lugar nuevos atributos plásticos que lo mejoran y embellecen.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Los entornos personales de aprendizaje (PLE) en la formación de traductores : pedagogía y tecnología

Los entornos personales de aprendizaje (EPA o PLE) surgen de la combinación entre los recursos que busca y usa el estudiante para su formación y el potencial la web 2.0. En el caso de la traducción, el PLE también configura un espacio tecnológico adecuado para la práctica profesional futura. En el artículo se presentan ideas para generar el entorno tecnológico del PLE del traductor y ejemplos de recursos.Els entorns personals d'aprenentatge (EPA o PLE) sorgeixen de la combinació entre els recursos que cerca i utilitza l'estudiant per a la seva formació i el potencial de la web 2.0. En el cas de la traducció, el PLE també configura un espai tecnològic adequat per a la pràctica professional futura. A l'article es presenten idees per generar l'entorn tecnològic del PLE del traductor i exemples de recursos.Personal learning environments (PLE) arise from the combination of the resources that students search and use for their training and the potential of the Web 2.0. In the case of translation, PLE also establishes a technological space suitable for future professional practice. This paper offers ideas for generating the technological environment of a translator PLE, as well as examples of resources

Steined Heraldry: About Los Círculos Morados. Memorias I, By Jorge Edwards Valdés

Indexación: Revista UNABEste trabajo es un análisis del libro Los círculos morados. Memorias I, del escritor chileno Jorge Edwards. Se discuten aquí tres aspectos, interrelacionados entre sí: la forma en la que el autor asume el género autobiográfico (qué entiende por este género, por qué lo elige y cómo se construye como sujeto), la reflexión que realiza sobre la autoridad paterna y las élites (el prestigio del dinero) y las alternativas para salir de esos círculos, considerados como opresivos.This work is an analytical study about the book Los círculos morados. Memorias I, from the Chilean writer Jorge Edwards. Three aspects are discussed here, which are interweaved among themselves: the way the author assumes the autobiographical genre (what he understands by this genre, why he chooses it and how he construct himself as a first grammatical person), the reflection he elaborates about paternal authority and the elites (money’s prestige) and the alternatives to withdraw from the oppressive circles.http://revistahumanidades.unab.cl/wp-content/uploads/2014/07/A6.-CANOVAS.pd

Actrices en libertad provisional

.El artículo relata la experiencia de un grupo de teatro dentro de la prisión. La fe en la fuerza libertadora de la creación dramática, así como el convencimiento de que la reinserción social sólo es posible abriendo vías de comunicación con la sociedad, son las bases sobre las que se fundamenta esta iniciativa de teatro social