Abedular relíctico en Sierra Nevada

Se da a conocer la existencia de un abedular relíctico en Sierra Nevada (Sur de España) en donde hasta la fecha solamente se conocía la existencia de dos ejemplares de Betula pendula subsp. fontqueri. Se aportan datos sobre la vegetación del valle del río Dúrcal, donde se encuentra este abedular, añadiendo recomendaciones para su conservación y gestión

Distributed Co-simulation for Smart Homes Energy Management in the Presence of Electrical Thermal Storage

Distributed generation and energy storage technologies have helped SmartGrid projects gain great momentum over the last decade. However, despite a large number of pilot and demonstration projects, low-level information is often unavailable. Therefore, tools for defining and building different operation scenarios are required. These tools can facilitate adopting novel approaches to multi-domain energy management. This paper proposes a distributed, flexible co-simulation framework to integrate simulators from separate domains and platforms. Particularly, the proposed scheme enables the development of hybrid thermal-electric systems for smart buildings. In this study, an object-oriented approach to modeling electrical thermal storage (ETS) units is also suggested. The evaluation process is carried out using real-world data. A case study is practiced by designing a residential agent that performs model predictive control (MPC) of residential heating load in the presence of ETS. The results show that proper integration of ETS into Home Energy Management Systems (HEMSs) can achieve economic savings of up to 45 %. The findings of this study demonstrate ETS's high potential for reducing customer bills while satisfying users' comfort. Furthermore, they recommend practical strategies for short-term planning of smart grids by increasing their flexibility based on ETS-integrated Demand Response (DR) programs. © 2022 IEEE

Action at a distance as a full-value solution of Maxwell equations: basis and application of separated potential's method

The inadequacy of Li\'{e}nard-Wiechert potentials is demonstrated as one of the examples related to the inconsistency of the conventional classical electrodynamics. The insufficiency of the Faraday-Maxwell concept to describe the whole electromagnetic phenomena and the incompleteness of a set of solutions of Maxwell equations are discussed and mathematically proved. Reasons of the introduction of the so-called ``electrodynamics dualism concept" (simultaneous coexistence of instantaneous Newton long-range and Faraday-Maxwell short-range interactions) have been displayed. It is strictly shown that the new concept presents itself as the direct consequence of the complete set of Maxwell equations and makes it possible to consider classical electrodynamics as a self-consistent and complete theory, devoid of inward contradictions. In the framework of the new approach, all main concepts of classical electrodynamics are reconsidered. In particular, a limited class of motion is revealed when accelerated charges do not radiate electromagnetic field.Comment: ReVTeX file, 24pp. Small corrections which do not have influence results of the paper. Journal reference is adde

Computer-based concept maps for enabling multilingual education in computer science: A Basque, English and Spanish languages case

Inside the globalisation era in which society is immersed, one of the current challenges for any educational system is to provide quality education. While some countries are linguistically homogeneous, many countries and regions display a wealth of linguistic diversity and it is essential to adapt the educational system to those realities. In addition, multilingual education promotes not only social equality but also inter-cultural education. The development of computer software localisable not only at interface level but also regarding learning resources may help to fulfill this aim. During the last years a number of products have emerged to support computer-based concept mapping. This paper presents a pilot study carried out at the University of the Basque Country UPV/EHU in the area of database systems with three main aims: to facilitate learning about the subject domain, to evaluate whether concept mapping is in general a good technique for learning topics in different languages, and finally, to verify whether CM-ED Concept Map EDitor provides the necessary mechanisms to fulfil this objective. Results confirm that the use of a concept map editor is a good support for education in multilingual settings.Arruarte Lasa, A.; Elorriaga, J.; Calvo, I.; Larrañaga, M.; Rueda Molina, U. (2012). Computer-based concept maps for enabling multilingual education in computer science: A Basque, English and Spanish languages case. Australasian Journal of Educational Technology. 28(5):793-808. doi:10.14742/ajet.81779380828

Session-based concurrency, declaratively

Session-based concurrency is a type-based approach to the analysis of message-passing programs. These programs may be specified in an operational or declarative style: the former defines how interactions are properly structured; the latter defines governing conditions for correct interaction

Domination spaces and factorization of linear and multilinear summing operators

[EN] It is well known that not every summability property for multilinear operators leads to a factorization theorem. In this paper we undertake a detailed study of factorization schemes for summing linear and nonlinear operators. Our aim is to integrate under the same theory a wide family of classes of mappings for which a Pietsch type factorization theorem holds. Our construction includes the cases of absolutely p-summing linear operators, (p, sigma)-absolutely continuous linear operators, factorable strongly p-summing multilinear operators, (p(1), ... , p(n))-dominated multilinear operators and dominated (p(1), ... , p(n); sigma)-continuous multilinear operators.Supported by the Ministerio de Economia y Competitividad (Spain) under Grant MTM2015-66823-C2-2. Supported by the Ministerio de Economia y Competitividad (Spain) under Grant MTM2012-36740-C02-02.Achour, D.; Dahia, E.; Rueda, P.; Sánchez Pérez, EA. (2016). Domination spaces and factorization of linear and multilinear summing operators. Quaestiones Mathematicae. 39(8):1071-1092. https://doi.org/10.2989/16073606.2016.1253627S1071109239

The binary progenitors of short and long GRBs and their gravitational-wave emission

We have sub-classified short and long-duration gamma-ray bursts (GRBs) into seven families according to the binary nature of their progenitors. Short GRBs are produced in mergers of neutron-star binaries (NS-NS) or neutron star-black hole binaries (NS-BH). Long GRBs are produced via the induced gravitational collapse (IGC) scenario occurring in a tight binary system composed of a carbon-oxygen core (COcore) and a NS companion. The COcore explodes as type Ic supernova (SN) leading to a hypercritical accretion process onto the NS: if the accretion is sufficiently high the NS reaches the critical mass and collapses forming a BH, otherwise a massive NS is formed. Therefore long GRBs can lead either to NS-BH or to NS-NS binaries depending on the entity of the accretion. We discuss for the above compact-object binaries: 1) the role of the NS structure and the nuclear equation of state; 2) the occurrence rates obtained from X and gamma-rays observations; 3) the predicted annual number of detections by the Advanced LIGO interferometer of their gravitational-wave emission

Análisis comparativo de la atención de pacientes con enfermedad neurológica en el servicio de urgencias hospitalario durante el periodo de confinamiento por COVID-19

El nuevo coronavirus (SARS-CoV-2) fue identificado por primera vez en la ciudad china de Wuhan, en diciembre de 2019. Desde entonces el virus se ha propagado a más de 200 países. El 30 de enero de 2020 el brote fue declarado “Emergencia de salud pública de importancia internacional” por la Organización Mundial de la Salud, y el 11 de marzo elevado a “Pandemia internacional”1. El primer diagnóstico en España se registró el 31 de enero, pero no fue hasta marzo cuando los casos comenzaron a crecer exponencialmente. El 14 de marzo el Gobierno de España declaraba el estado de alarma por el que limitaba la libre circulación de personas, entre otras medidas. En Aragón esta limitación estuvo vigente hasta el 4 de mayo, cuando dio comienzo el proceso de desescalada. A fecha de 16 de junio de 2020 se han confirmado en España 244.328 diagnósticos por test de reacción en cadena de polimerasa (PCR)2. En nuestro hospital, a medida que aumentaba la carga asistencial de enfermedad respiratoria en el servicio de urgencias hospitalarias (SUH), se percibía un descenso del resto de enfermedades, incluida la neurológica y, particularmente, la enfermedad cerebrovascular aguda, como se ha reportado en otros estudios3. A nivel mundial, las enfermedades neurológicas representan la causa principal de años de vida perdidos ajustados por discapacidad y la segunda causa de muerte4. En España, la mortalidad por causa neurológica representa el 19% del total anual. Esta cifra se ha incrementado en los últimos 10 años en un 18, 5%. En el caso de Aragón, las enfermedades neurológicas causan el 20, 6% de las muertes5..