Multiscale modeling of a closure problem using the scattering transform

Els models climàtics estimen la dinàmica dels fluids a la Terra resolent equacions contínues en quadrícules finites. Els processos físics per sota de la resolució dels models climàtics tenen efectes estadístics a les escales resoltes. Per tenir-los en compte, els models incorporen parametritzacions. El desenvolupament de parametritzacions efectives és crucial per produir prediccions climàtiques precises a llarg termini. En aquest treball, abordem aquest problema utilitzant l'scattering transform per estudiar i modelar el problema de clausura en el domini d'scattering, i desenvolupem un model generatiu i un mètode de superresolució per a camps de turbulència.Los modelos climáticos estiman la dinámica de los fluidos en la Tierra resolviendo ecuaciones en cuadrículas finitas. Los procesos físicos por debajo de la resolución de los modelos climáticos tienen efectos estadísticos en las escalas resueltas. Para tenerlos en cuenta, los modelos incorporan parametrizaciones. El desarrollo de parametrizaciones efectivas es crucial para producir predicciones climáticas precisas a largo plazo. En este trabajo, abordamos este problema utilizando la scattering transform para estudiar y modelar el problema de clausura en el dominio de scattering, y desarrollamos un modelo generativo y un método de superresolución para campos de turbulencia.Climate models estimate the dynamics of the fluids on Earth by solving equations on finite grids. The physical processes below the resolution of climate models have statistical effects on the resolved scales. To account for them, models incorporate subgrid parametrizations. Devising effective parametrizations is crucial when producing accurate, long-term climate predictions. In this work, we address this challenge by using the scattering transform to study and model the closure problem in the scattering domain and we develop a generative model and a super-resolution method for turbulence fields.Outgoin

El Monument a Marià Fortuny dels germans Miquel i Llucià Oslé i la llarga polèmica del seu emplaçament

Aquest article dóna a conèixer el Monument a Marià Fortuny de Miquel i Llucià Oslé i Sáenz de Medrano, dosartistes catalans que van tenir una gran producció escultòrica al segle XX. Aquesta escultura, concebuda comun homenatge a l’artista català del segle XIX, s’ha vist caracteritzada per la polèmica i els constants confl ictesen la seva realització. En aquest article es mostra, a través de la correspondència privada dels germans Oslé,tot el procés d’execució del monument des del seu encàrrec fi ns a la seva inauguració. Després de la mortdels escultors, la polèmica al voltant del Monument a Marià Fortuny segueix vigent fi ns pràcticament avui dia,refl ectida als diaris i revistes actuals.Paraules clau: germans Oslé / Monument a Marià Fortuny / segle XX / escultura catalana / Barcelona

Vaccination is a suitable tool in the control of Aujeszky's disease outbreaks in pigs using a Population Dynamics P systems model

Aujeszky's disease is one of the main pig viral diseases and results in considerable economic losses in the pork production industry. The disease can be controlled using preventive measures such as improved stock management and vaccination throughout the pig-rearing period. We developed a stochastic model based on Population Dynamics P systems (PDP) models for a standard pig production system to differentiate between the effects of pig farm management regimes and vaccination strategies on the control of Aujeszky's disease under several different epidemiological scenarios. Our results suggest that after confirming the diagnosis, early vaccination of most of the population (>75%) is critical to decrease the spread of the virus and minimize its impact on pig productivity. The direct economic cost of an outbreak of Aujeszky's disease can be extremely high on a previously uninfected farm (from 352-792 Euros/sow/year) and highlights the positive benefits of investing in vaccination measures to control infections. We demonstrate the usefulness of computational models as tools in the evaluation of preventive medicine programs aimed at limiting the impact of disease on animal production.This work was partially supported by FEDER project COMRDI16-1-0035-03

A practical approach to perform the isotropy test for extremity dosemeters

The requirements for determining extremity dosemeter performance have evolved over the past decade. In 2010, the Spanish Nuclear Safety Council (CSN) adopted a national protocol with performance requirements based on ISO 12794. Because of the lack of symmetry of ISO 4037-3 calibration phantoms, the isotropy test set up in the sagittal plane presented several challenges both for individual monitoring services and for calibration labs. This article proposes and validates a practical approach to reduce the number of irradiations. Results show that wrist and ring dosemeters in this study meet the ISO 12794 requirements for the isotropy test. However, additional studies would be needed to verify the newer IEC 62387 Standard.Postprint (author's final draft

Design and development of augmentative and alternative digital home control interface

This paper describes a Digital Home Interface capable of adapting layouts, styles and contents to device capability, user preferences and appliances’ features; designed with a combination of web technologies, standard languages for abstract interface definition and AAC systems. The Home Automation architecture is characterized by devices’ independence, combining eXtensible Markup Language and Cascading Style Sheet, web technologies standard languages for abstract interface definition and two basic Augmentative and Alternative Communication systems with a Java based platform. This paper includes the result of a preliminary experiment, conducted with 4 users with cerebral palsy that are daily users of Augmentative and Alternative Communication systems in October 2011Peer Reviewe