The Invariant Two-Parameter Function of Algebras ψ

At present, the research on invariant functions for algebras is very extended since Hrivnák and Novotný defined in 2007 the invariant functions y and j as a tool to study the Inönü–Wigner contractions (IW-contractions), previously introduced by those authors in 1953. In this paper, we introduce a new invariant two-parameter function of algebras, which we call ¯y, as a tool which makes easier the computations and allows researchers to deal with contractions of algebras. Our study of this new function is mainly focused in Malcev algebras of the type Lie, although it can also be used with any other types of algebras. The main goal of the paper is to prove, by means of this function, that the five-dimensional classical-mechanical model built upon certain types of five-dimensional Lie algebras cannot be obtained as a limit process of a quantum-mechanical model based on a fifth Heisenberg algebra. As an example of other applications of the new function obtained, its computation in the case of the Lie algebra induced by the Lorentz group SO(3, 1) is shown and some open physical problems related to contractions are also formulated.Ministerio de Ciencia e Innovación MTM2013-40455-PMinisterio de Ciencia e Innovación FQM-326 (J.N.-V.)Junta de Andalucía FQM-160 (P.P.-F.

Análisis de la regulación de los cobros del sistema financiero

En los últimos años se ha discutido en el Congreso de Colombia la posibilidad de regular los cobros que realizar el sistema financiero. Para la toma de este tipo de decisiones es vital comprender la relevancia que tienen las entidades crediticias en el crecimiento económico del país y en especial en el consumo de los hogares. El trabajo a continuación es una aproximación para comprender la importancia de dicho sector en diferentes aspectos como el desarrollo económico y la inclusión financiera. Previo a la revisión específica de Colombia se realiza una aproximación a casos similares en otros países

A distributed and energy‑efficient KNN for EEG classification with dynamic money‑saving policy in heterogeneous clusters

Universidad de Granada/CBUASpanish Ministry of Science, Innovation, and Universities under Grants PGC2018-098813-B-C31,PID2022-137461NB-C32ERDF fund. Funding for open access charge: University of Granada/ CBU

LA CULTURA DE LA INVESTIGACIÓN

The researching culture is an innovative proposal that seeks for integrating the diverse learning atmospheres that the student of Bachelor in Education in mathematics and physics of the University “de Los Llanos”, is a project of investigation caused by a holistic exercise, based on the development of abilities, making the educational professional to be a competitive fellow, that assumes the challenge to educate supported by the investigation as an articulator axis that eases the processes of construction of knowledge.  La cultura de la investigación es una propuesta innovativa que pretende integrar los diversos ambientes de aprendizaje que cursa el estudiante de Licenciatura en matemáticas y física de la Universidad de los Llanos, en un proyecto de investigación producto de un ejercicio holístico, fundamentado en el desarrollo de habilidades, haciendo del futuro profesional docente un sujeto competitivo, que asuma el reto de educar apoyado en la investigación como eje articulador que viabiliza los procesos de construcción de conocimiento

HIGEA: An Intelligent Conversational Agent to Detect Caregiver Burden

Mental health disorders increasingly affect people worldwide. As a consequence, more families and relatives find themselves acting as caregivers. Most often, these are untrained people who experience loneliness, abandonment, and often develop signs of depression (i.e., caregiver burden syndrome). In this work, we present HIGEA, a digital system based on a conversational agent to help to detect caregiver burden. The conversational agent naturally embeds psychological test questions into informal conversations, which aim at increasing the adherence of use and avoiding user bias. A proof-of-concept is developed based on the popular Zarit Test, which is widely used to assess caregiver burden. Preliminary results show the system is useful and effective

Energy Efficiency of Personal Computers: A Comparative Analysis

The demand for electricity related to Information and Communications Technologies is constantly growing and significantly contributes to the increase in global greenhouse gas emissions. To reduce this harmful growth, it is necessary to address this problem from different perspectives. Among these is changing the computing scale, such as migrating, if possible, algorithms and processes to the most energy efficient resources. In this context, this paper explores the possibility of running scientific and engineering programs on personal computers and compares the obtained power efficiency on these systems with that of mainframe computers and even supercomputers. Anecdotally, this paper also shows how the power efficiency obtained for the same workloads on personal computers is similar to that obtained on supercomputers included in the Green500 ranking.Spanish GovernmentEuropean Commission PGC2018-098813-B-C31 MICI

Cambio normativo y cambio en los sistemas de información y control: El caso del olivar

En este trabajo pretendemos analizar el impacto que los cambios en la normativa comunitaria reguladora de las producciones agropecuarias, en la actualidad enmarcada en la Política Agraria Común, han tenido sobre el sector olivarero (aceite de oliva y aceituna de mesa) en nuestro país y más concretamente en nuestra comunidad autónoma, debido al peso específico que este sector tiene en el conjunto de la economía andaluza, un 23% de la producción final agraria. Este trabajo se va a enmarcar dentro de Teoría Institucional debido a su capacidad para explicar los cambios en las instituciones y organizaciones en función de fenómenos sociopolíticos y económicos en términos de relaciones causa-efecto. Proponemos el estudio de caso como método de análisis lo que conllevará al uso de técnicas de obtención de evidencia tales como el análisis documental, entrevistas, cuestionarios, observación no participante, etc. El objetivo final de este proyecto de investigación es analizar desde un punto de vista multidisciplinar los cambios producidos en el sector del olivar desde nuestra incorporación plena a la Comunidad Económica Europea en 1986, examinando igualmente la posible influencia que tendrá en el sector los cambios normativos que se deriven como resultado de la denominada Agenda 2000. De esta forma, pretendemos abarcar con nuestro proyecto aspectos tales como la proliferación y mejora del cultivo, la configuración global del sector del olivar y las distintas tipologías de empresas que operan en él –estrategia, tamaño, estructura, situación económico-financiera, resultados, etc.-, llegando, por último, a analizar los efectos sobre sus sistemas de control (SC)

Temporal Phase Synchrony Disruption in Dyslexia: Anomaly Patterns in Auditory Processing

The search for a dyslexia diagnosis based on exclusively objective methods is currently a challenging task. Usually, this disorder is analyzed by means of behavioral tests prone to errors due to their subjective nature; e.g. the subject’s mood while doing the test can affect the results. Understanding the brain processes involved is key to proportionate a correct analysis and avoid these types of problems. It is in this task, biomarkers like electroencephalograms can help to obtain an objective measurement of the brain behavior that can be used to perform several analyses and ultimately making a diagnosis, keeping the human interaction at minimum. In this work, we used recorded electroencephalograms of children with and without dyslexia while a sound stimulus is played. We aim to detect whether there are significant differences in adaptation when the same stimulus is applied at different times. Our results show that following this process, a machine learning pipeline can be built with AUC values up to 0.73.Spanish Government PGC2018-098813-BC32 PGC2018-098813-B-C31Junta de Andalucia UMA20-FEDERJA-086 P18-RT-1624European CommissionBioSiP research group TIC-251MCIN/AEI by "ESF Investing in your future" PRE2019-087350 MICINN "Juan de la Cierva -Incorporacion" FellowshipLeeduca research groupJunta de Andalucia Spanish Governmen

Multiprotocol Authentication Device for HPC and Cloud Environments Based on Elliptic Curve Cryptography

Multifactor authentication is a relevant tool in securing IT infrastructures combining two or more credentials. We can find smartcards and hardware tokens to leverage the authentication process, but they have some limitations. Users connect these devices in the client node to log in or request access to services. Alternatively, if an application wants to use these resources, the code has to be amended with bespoke solutions to provide access. Thanks to advances in system-on-chip devices, we can integrate cryptographically robust, low-cost solutions. In this work, we present an autonomous device that allows multifactor authentication in client–server systems in a transparent way, which facilitates its integration in High-Performance Computing (HPC) and cloud systems, through a generic gateway. The proposed electronic token (eToken), based on the system-on-chip ESP32, provides an extra layer of security based on elliptic curve cryptography. Secure communications between elements use Message Queuing Telemetry Transport (MQTT) to facilitate their interconnection. We have evaluated different types of possible attacks and the impact on communications. The proposed system offers an efficient solution to increase security in access to services and systems.Spanish Ministry of Science, Innovation and Universities (MICINN) PGC2018-096663-B-C44European Union (EU

Energy-aware Load Balancing of Parallel Evolutionary Algorithms with Heavy Fitness Functions in Heterogeneous CPU-GPU Architectures

By means of the availability of mechanisms such as Dynamic Voltage and Frequency Scaling (DVFS) and heterogeneous architectures including processors with different power consumption profiles, it is possible to devise scheduling algorithms aware of both runtime and energy consumption in parallel programs. In this paper, we propose and evaluate a multi-objective (more specifically, a bi-objective) approach to distribute the workload among the processing cores in a given heterogeneous parallel CPU-GPU architecture. The aim of this distribution may be either to save energy without increasing the running time or to reach a trade-off among time and energy consumption. The parallel programs considered here are master-worker evolutionary algorithms where the evaluation of the fitness function for the individuals in the population demands the most part of the computing time. As many useful bioinformatics and data mining applications exhibit this kind of parallel profile, the proposed energy-aware approach for workload scheduling could be frequently applied.Spanish Ministerio de Economía y Competitividad under grant TIN2015-67020-PERDF fun