Incorporación de actividad sísmica no reflejada en el catálogo en métodos no zonificados

Las evaluaciones de la peligrosidad sísmica suelen apoyarse en la información del catálogo. El período de retorno de los cálculos probabilistas debe ser consistente con las tasas de ocurrencia representadas en la caracterización de la actividad. En la metodología de Gutenberg-Richter (GR) se fija una magnitud máxima de integración que acota la validez de la ley de GR, siendo frecuente que el rango cubierto por la ley de GR exceda al cubierto por el catálogo que la soporta. En un método no zonificado la tasa de actividad se construye a partir de los eventos del catálogo y es sólo representativa de dichos eventos, aunque la incorporación de incertidumbres y el adecuado manejo de los períodos efectivos pueden incrementar los períodos de retorno respecto al rango cubierto por el catálogo. Se expone aquí una estrategia para incorporar información paleosísmica en una metodología basada en estimadores de densidad kernel

Factors Contributing to Mobile Phone Dependence Amongst Young People—Educational Implications

The use of mobile devices facilitates access to knowledge and is at the base of the education of the future. Although the digital society has contributed a number of benefits, it has also been associated with worrying behaviors. The study design consisted of a quantitative approach that was descriptive, inferential and ex post facto in nature. Its purpose was to better understand the opinion of young people regarding smartphone use and describe dependence deriving from regular use. The sample was formed of 420 students from the Faculty of Education at the University of Granada. Results indicate that mobile phone use has displaced use of other technologies such as the television and is associated with communication and recreational activities. In addition, a profile was identified for young people at greater risk of developing a dependence on their mobile devices. This profile constituted female smartphone users with recreational motives and individuals who exceeded mobile phone use by more than six hours a day. To improve the educational use of smartphones, prevention and intervention plans must be designed which ensure correct management of this device, taking advantage of the benefits they offer, while avoiding problems derived from inappropriate use

Discrete-time cellular neural networks in FPGA

This paper describes a novel architecture for the hardware implementation of non-linear multi-layer cellular neural networks. This makes it feasible to design CNNs with millions of neurons accommodated in low price FPGA devices, being able to process standard video in real time.This research has been funded by MTyAS of Spain, IMSERSO RETVIS 150/06

Hand-based interface for augmented reality

Augmented reality (AR) is a highly interdisciplinary field which has received increasing attention since late 90s. Basically, it consists of a combination of the real scene viewed by a user and a computer generated image, running in real time. So, AR allows the user to see the real world supplemented, in general, with some information considered as useful, enhancing the users perception and knowledge of the environment. Benefits of reconfigurable hardware for AR have been explored by Luk et al. [4]. However, the wide majority of AR systems have been based so far on PCs or workstation

Models and modular housing: the experience of Ricardo Bofill’s Taller de Arquitectura

[EN] In the beginning of Taller de Arquitectura models were used as an instrument of propaganda and communication, as a way of transmitting the benefits of the project to a potential client. However, after the visit made at the late sixties by some members of the group to Rafael Leoz’s studio, they began to use models as a working tool. Models became an indispensable aid to develop their ideas about modular housing, in order to create projects of great complexity, such as their City in Space.[ES] Al inicio de la actividad de Taller de Arquitectura las maquetas se utilizaban como un instrumento de propaganda y comunicación, una forma de transmitir las bondades del proyecto al posible cliente. Sin embargo, tras la visita que hicieron algunos miembros del Taller al estudio de Rafael Leoz a finales de los años sesenta, comenzaron a utilizar las maquetas como un instrumento de trabajo, llegando a convertirse en una ayuda indispensable para desarrollar sus ideas sobre la vivienda modular y lograr formalizar proyectos de gran complejidad formal, como el de la Ciudad en el Espacio.Álvarez Arce, R.; Galván Desvaux, N.; Martínez Rodríguez, JM. (2021). Maquetas y vivienda modular: la experiencia del taller de arquitectura de Ricardo Bofill. EGA Expresión Gráfica Arquitectónica. 26(43):182-193. https://doi.org/10.4995/ega.2021.14537OJS1821932643BERGERA, Iñaki (ed.) 2016. Cámara y modelo: Fotografía de maquetas de arquitectura en España 1925-1970. Madrid: Fundación Ico.CARAZO LEFORT, E. 2018. "La maqueta como realidad y como representación: Breve recorrido por la maqueta de arquitectura". EGA: Expresión Gráfica Arquitectónica, 34, 158-171. https://doi.org/10.4995/ega.2018.10849GARCÍA HERNANDEZ, Pedro. 2011. La agregación modular como mecanismo proyectual residencial en España: El taller de Arquitectura. Tesis Doctoral inédita. Universidad Ramón Llull.KRIS, Ernst. 1964. "Esthetic Ambiguity". Psicoanálisis de lo cómico y psicología de los procesos creadores. Buenos Aires: Paidos.LÓPEZ DÍAZ, Jesús. 2012. "El módulo ELE de Rafael Leoz, una historia de contradicciones: del éxito internacional a la difícil relación con la arquitectura Española". RA: Revista de arquitectura, 14, 37-50.MONTES SERRANO, Carlos. 2008. "Le cose confuse destano la mente", en Enrique Rabasa, Expresión Gráfica Arquitectónica. Madrid: Instituto Juan de Herrera, 599-605.MONTES SERRANO, Carlos; ALONSO RODRÍGUEZ, Marta. 2018. "Las diez maquetas de la Modern Architecture Exhibition, 1932". EGA: Expresión Gráfica Arquitectónica, 32, 36-47. https://doi.org/10.4995/ega.2018.8994RODRIGUEZ PRADA, Víctor. 2016. "La generación del estructuralismo holandés a través de sus maquetas: El caso de Herman Hertzberger, 1958-1968". Proyecto. Progreso.Arquitectura. 15, 101-111. https://doi.org/10.12795/ppa.2016.i15.07VV.AA. 1968. Hacia una formalización de la ciudad en el espacio. Barcelona: Blume

Assembling Nonplanar Polyaromatic Units by Click Chemistry. Study of Multicorannulene Systems as Host for Fullerenes

Producción CientíficaNovel compounds with two or three corannulene subunits have been obtained by “click chemistry”. These exotic systems were synthesized in high yields using the ethynylcorannulene as common reagent. The synergistic action as receptors for fullerenes of several corannulene blocks has been evaluated. It was found that the three-armed derivatives showed efficient complexation abilities toward C60. Furthermore, a new compound having two corannulene subunits linked to a hexahelicene scaffold has a remarkable affinity constant. Finally, theoretical calculations have been performed to evaluate the formation of their relative adducts containing a C60 molecule.Ministerio de Economía, Industria y Competitividad (Projects 258 CTQ2013-41067-P and CTQ2011-23862-C02

Adsorption and interfacial phenomena of a Lennard-Jones fluid adsorbed in slit pores: DFT and GCMC simulations

Confinement of fluids in porous media leads to the presence of solid–fluid (SF) interfaces that play a key role in many different fields. The experimental characterisation of SF interfacial properties, in par- ticular the surface tension, is challenging or not accessible. In this work, we apply mean-field density functional theory (DFT) to determine the surface tension and also density profile of a Lennard-Jones fluid in slit-shaped pores for realistic amounts of adsorbed molecules. We consider the pore walls to interact with fluid molecules through the well-known 10-4-3 Steele potential. The results are com- pared with those obtained from Monte Carlo simulations in the Grand Canonical Ensemble (GCMC) using the test-area method. We analyse the effect on the adsorption and interfacial phenomena of volume and energy factors, in particular, the pore diameter and the ratio between SF and fluid–fluid dispersive energy parameters, respectively. Results from DFT and GCMC simulations were found to be comparable, which points to their reliability.The authors would like to acknowledge helpful discussions with A. I. Moreno-Ventas Bravo. We also acknowledge Centro de Supercomputación de Galicia (CESGA, Santiago de Compostela, Spain) and MCIA (Mésocentre de Calcul Intensif Aquitain) of the Universités de Bordeaux and Pau et Pays de l’Adour (France), for providing access to computing facilities

From general research questions to specific answers: Underspecificity as a source of uncertainty in biological conservation

P. 167-180Species distribution modelling may support ecologists in conservation decision-making. However, the applicability of management recommendations depends on the uncertainty associated to the modelling process. A key source of uncertainty is the underspecificity of the research question. Modelling specific questions is straightforward since they drive clearly the methodological choices about input data and model building. Nevertheless, when the research questions remain underspecific, modellers must choose among a wide spectrum of choices, with each decision sequence driving to a different outcome that explain partially the target question. We show how the underspecificity associated to a general research question about Great Bustard breeding success at geographic scale drives to multiple decision choices, leads to a variety of model outcomes and hampers the identification of specific conservation actions. We ran generalised linear models using multi-model inference on a set of databases built according to specific sequences of methodological choices. Then, we evaluated variations in model performance, complexity (parsimony) and nature of predictors, as well as averaged model predictions and spatial congruence among model outputs. Deviance and parsimony varied widely (11.46% to 83.33% and 7 to 18, respectively), as did model averaged mean predictions in occupied areas, contributing predictors and spatial congruence among outputs (rPearson = 0.44 ± 0.23 for models calibrated in occupied areas; 0.48 ± 0.06 for models calibrated in potential/accessible areas). We recommend to carefully fix research questions and associated methodological options through collaborative working frameworks to conceptualize modelling approaches and, thus, to mitigate problems arising from underspecificity and other forms of uncertainty in conservation applications.S

Biochar and vermicompost as peat replacement for ornamental-plant production

Poster presentado en el Understanding Biochar Mechanisms for Practical Implementation. Final Meeting EU-COST Actions Biochar & 76Biochar is a by-product of the C-negative pyrolysis technology for production of bio-energy from organic materials. Containerized plant production in floriculture primarily utilizes soilless substrates such as peat moss. Environmental concerns about draining peat bogs have enhanced interests in research on complementary products that can be added to peat. Thus, a comparative study was conducted to assess the suitability of a biochar (B) and vermicompost (V) mix as a partial substitute for peat-based growing media for ornamental plant production.This work was partially supported by the project CTQ 2013-46804-C2-1-R of the Spanish Ministry of Economy and Competitiveness and the European Regional Development Funds (ERDF). The authors wish to thank the Horticultural Department and Carbon Sequestration and Management Center of Ohio State University for providing materials and facilities for this investigation, also he is deeply grateful to Mrs. Loewe and Dr. J. Altland from Application Technology Research Unit at Wooster OSU campus for their laboratory assistance in determining substrates mixes physical properties.Peer reviewe

On the performance of deep learning models for time series classification in streaming

Processing data streams arriving at high speed requires the development of models that can provide fast and accurate predictions. Although deep neural networks are the state-of-the-art for many machine learning tasks, their performance in real-time data streaming scenarios is a research area that has not yet been fully addressed. Nevertheless, there have been recent efforts to adapt complex deep learning models for streaming tasks by reducing their processing rate. The design of the asynchronous dual-pipeline deep learning framework allows to predict over incoming instances and update the model simultaneously using two separate layers. The aim of this work is to assess the performance of different types of deep architectures for data streaming classification using this framework. We evaluate models such as multi-layer perceptrons, recurrent, convolutional and temporal convolutional neural networks over several time-series datasets that are simulated as streams. The obtained results indicate that convolutional architectures achieve a higher performance in terms of accuracy and efficiency.Ministerio de Economía y Competitividad TIN2017-88209-C2-2-RJunta de Andalucía US-1263341Junta de Andalucía P18-RT-277