A large part of technological advances, especially in the field of industry, have been focused on the optimization of productive processes. However, the detection of anomalies has turned out to be a great challenge in fields like industry, medicine or stock markets. The present work addresses anomaly detection on a control level plant. We propose the application of different intelligent techniques, which allow to obtain one-class classifiers using real data taken from the correct plant operation. The performance of each classifier (...) is assessed and validated with real created faults, achieving successful overall results. (shrink)

Nowadays, batteries play an important role in a lot of different applications like energy storage, electro-mobility, consumer electronic and so on. All the battery types have a common factor that is their complexity, independently of its nature. Usually, the batteries have an electrochemical nature. Several different test are accomplished to check the batteries performance, and commonly, it is predictable how they work depending of their technology. The present research describes the hybrid intelligent system created to accomplish fault detection over a (...) Lithium Iron Phosphate—LiFePO4 power cell type, commonly used in electro-mobility applications. The approach is based on the cell temperatures behaviour for voltage and current specific values. Taken into account the operating range of a real system based on a LiFePO4 cell, a large set of points of operation have been used to achieve the dataset. The different behaviour zones have been obtained by clustering as a first step. Then, different regression techniques have been used over each cluster. Polynomial regression, artificial neural networks and support vector regression were the combined techniques to develop the hybrid intelligent model proposed. The intelligent system gives very good results over the operating range, detecting all the faults tested during the validation. (shrink)

One of the main challenges in medicine is to guarantee an appropriate drug supply according to the real needs of patients. Closed-loop strategies have been widely used to develop automatic solutions based on feedback variables. However, when the variable of interest cannot be directly measured or there is a lack of knowledge behind the process, it turns into a difficult issue to solve. In this research, a novel algorithm to approach this problem is presented. The main objective of this study (...) is to provide a new general algorithm capable of determining the influence of a certain clinical variable in the decision making process for drug supply and then defining an automatic system able to guide the process considering this information. Thus, this new technique will provide a way to validate a given physiological signal as a feedback variable for drug titration. In addition, the result of the algorithm in terms of fuzzy rules and membership functions will define a fuzzy-based decision system for the drug delivery process. The method proposed is based on a Fuzzy Inference System whose structure is obtained through a decision tree algorithm. A four-step methodology is then developed: data collection, preprocessing, Fuzzy Inference System generation, and the validation of results. To test this methodology, the analgesia control scenario was analysed. Specifically, the viability of the Analgesia Nociception Index as a guiding variable for the analgesic process during surgical interventions was studied. Real data was obtained from fifteen patients undergoing cholecystectomy surgery. (shrink)

The aim of the present research was to assess elite student-athletes’ perception of the dual career during the lockdown caused by the coronavirus disease 2019 pandemic, compared with a group of elite student-athletes who could develop their dual career under normal conditions. A total of 150 elite athletes who were also undergraduate or postgraduate students self-completed the “Perceptions of dual career student-athletes ” questionnaire. From them, 78 did it during the mandatory lockdown period due to the state of emergency caused (...) by COVID-19 and 72 completed it in the previous year to Rio 2016 Olympic Games. The COVID-19 group was found to spend a significantly higher number of hours per week studying, while no significant differences were observed between groups in any training time variable. Student-athletes of the COVID-19 group showed better perception of whether their sport career could help them cope with their academic career and better general perception of remote learning and the use of tasks and videoconferencing as learning support tools. A lower percentage of athletes of the COVID-19 group than of the control group wished to continue with their sport career once they finished their studies. To conclude, student-athletes of the COVID-19 group show adaptations with regard to the organization of their studies and the importance they give to them and to the services provided by dual-career programs, compared with student-athletes from an ordinary pre-Olympic year. In general, student-athletes’ perception of the dual career is very positive. (shrink)

This study aimed to investigate the student-athletes' capability to face the academic, sport, and social challenges during the coronavirus disease 2019 (COVID-19) lockdown and to disclose novel aspects of dual careers. A 32-item online survey encompassing demographic characteristics, sport and university engagement, support and dual-career benefits, physical activity, sitting time, and the time deemed necessary to recover the previous level of performance was developed. Four hundred sixty-seven student-athletes (males: 57%, females: 43%) from 11 countries, competing in 49 different sports (individual: (...) 63.4%, team: 36.6%) at regional (17.5%), national (43.3%), and international (39.2%) levels, and enrolled at high school (21.9%) and university (78.1%) levels completed the survey. During the lockdown, the respondents decreased the time dedicated to sport and academics, although they maintained an active lifestyle. Student-athletes from countries under severe contagion were more likely to train at home, dedicate to academics, and receive support from the coach but less likely receive support from their teachers. With respect to their team sport counterparts, athletes competing in individual sports trained more and were more likely to receive support from their coaches. International athletes showed the highest training time and support from their coaches and as student-athletes. High school students received more support from their coaches and teachers, whereas university students were more likely considering dual careers useful to cope with the COVID-19 pandemic. This study substantiates the relevant role of competitive sports participation in the maintenance of active lifestyles, with student-athletes considering home training and e-learning valuable resources during the lockdown. Furthermore, their sport and academic commitments helped student-athletes cope with the emergency of the COVID-19 pandemic. (shrink)

The dual career allows elite athletes to attain their maximum competitive and academic performance, but the COVID-19 pandemic hindered their development and changed their perception of the importance given to the sporting and educational environment. For this reason, the aim of the present study was to determine the differences in the motivations and perceived barriers, the importance given to academic qualifications, and the perception of the dual career from a multifactorial perspective, of elite athletes according to sex, type of sport (...) practiced, job performance, time of sports career, type of athlete, and type of scholarship received. A total of 100 student-athletes participated in the research study by completing the “Perceptions of dual career student-athletes” questionnaire. The results showed that athletes from individual modalities and those who did not receive any scholarships described more barriers. In addition, women studied more because they enjoyed it ; athletes from individual modalities studied to work later ; athletes who do not work perceived a greater influence between study and sports performance ; at the beginning and at the best stage of their sports career, a greater influence of academics on performance was perceived ; and athletes who considered themselves professionals, and athletes who did not receive any scholarships, reported that the conciliation between sports and academic life was difficult. The results obtained point to the importance of dual career scholarships for student-athletes, as well as the need for the programs implemented for these athletes to consider sex, sport modality or type of scholarship granted. (shrink)

Closed-loop administration of propofol for the control of hypnosis in anesthesia has evidenced an outperformance when comparing it with manual administration in terms of drug consumption and post-operative recovery of patients. Unlike other systems, the success of this strategy lies on the availability of a feedback variable capable of quantifying the current hypnotic state of the patient. However, the appearance of anomalies during the anesthetic process may result in inaccurate actions of the automatic controller. These anomalies may come from the (...) monitors, the syringe pumps, the actions of the surgeon or even from alterations in patients. This could produce adverse side effects that can affect the patient postoperative and reduce the safety of the patient in the operating room. Then, the use of anomaly detection techniques plays a significant role to avoid this undesirable situations. This work assesses different one-class intelligent techniques to detect anomalies in patients undergoing general anesthesia. Due to the difficulty of obtaining real data from anomaly situations, artificial outliers are generated to check the performance of each classifier. The final model presents successful performance. (shrink)

Automatic control of physiological variables is one of the most active areas in biomedical engineering. This paper is centered in the prediction of the analgesic variables evolution in patients undergoing surgery. The proposal is based on the use of hybrid intelligent modelling methods. The study considers the Analgesia Nociception Index to assess the pain in the patient and remifentanil as intravenous analgesic. The model proposed is able to make a one-step-ahead prediction of the remifentanil dose corresponding to the current state (...) of the patient. The input information is the previous remifentanil dose, the ANI variable and the electromyogram signal. Modelling techniques used are Artificial Neural Networks and Support Vector machines for Regression combined with clustering methods. Both training and validation were done with a real dataset from different patients. Results obtained show the potential of this methodology to calculate the drug dose corresponding to a given analgesic state of the patient. (shrink)

Esta investigación da cuenta de cómo ha sido expresada, interpretada y fundada poéticamente la ciudad colombiana durante el siglo XX en las obras de los poetas colombianos Luis Vidales (Suenan Timbres), Rogelio Echavarría (El Transeúnte) y Juan Manuel Roca (Luna de ciegos y Los ladrones nocturnos). Indaga cómo estos tres poetas colombianos han fundado ciudades como textos escriturales y levantado cartografías simbólicas citadinas; realiza una interpretación de los universos de sus poéticas, de las constelaciones simbólicas que asume el (...) poema como universo del lenguaje, el cual construye topologías imaginarias sobre la ciudad, revelando arquetipos fundamentales, presentes en la poesía urbana colombiana. (shrink)

Obra epistologràfica / introducció de J. Estellés -- Obra filològica / introducció de J. Pérez Durà -- Obra filosòfica / introducció de C. Mínguez -- Obra jurídica / introducció d'I. Roca -- Obra religiosa / introducció d'I. Roca -- Sobre ciència i medicina / introducció de J. Ll. Barona i V. Navarro -- Sobre la dona / introducció de N. Campillo -- Obra pedagògica / introducció d'A. Mayordomo -- Obra psicològica / introducció de F. Tortosa.

Solo el atrevimiento característico de la sabiduría nos impulsa a tomar el camino más complejo de pensar en el amor, pues nos hace conscientes del error de querer construir lo principal de la existencia en un sentimiento blando como la arena, incapaz de resistir cualquier contradicción de importancia. Encontrar el auténtico fundamento de esa pregunta, que en la actualidad no se puede dar por descontado, es la única manera de edificar la casa del hombre sobre roca, y apartarnos de (...) la necedad de levantar un edificio sin cimientos. Es una elección trascendental que, como el Papa Benedicto XVI ha señalado con fuerza, tiene una repercusión social de máximo relieve. (shrink)

Se presenta un estudio histórico y de caracterización química y molecular por técnicas no destructivas, ESEMEDS y Raman, de nueve esculturas de pequeño tamaño, fabricadas en esteatita, antigua denominación de minerales blandos y untuosos como talco y pirofilita, conservadas en el Museo Nacional de Ciencias Naturales (MNCN). Se concluye que dos especímenes son de pirofilita y procedentes de Japón, mientras que las otras siete son de talco con ornamentación de procedencia China. Las muestras de talco de China tienen calcita con (...) algo de cobre, típica de metamorfismo de dolomías, mientras que las pirofilitas tienen Pb, Fe, Cl, As, P, S, Na y Ca, elementos químicos de origen hidrotermal de rocas félsicas más característico de Japón. Las estatuillas fueron aportadas al RGHN desde Filipinas, en el siglo XVIII, por D. Juan de Cuellar, expedicionario y botánico español, de quien se incluye un recorrido por su biografía y actividades científico-económicas. Estas piezas son la expresión de la tendencia al coleccionismo de objetos orientales imperante en la época de la Ilustración. (shrink)

En Andalucía ha existido una antigua tradición académica paralela con la génesis y evolución de las Academias Centrales de Madrid, siendo creadas a lo largo de los siglos XVIII y XIX, y que recogen los movimientos culturales andaluces, a través de diversas Academias de diversa extensión territorial. Tras la Constitución de 1978, se aprueba el Estatuto de Autonomía de Andalucía, asumiendo esta Comunidad en el art. 13 de su Estatuto, competencia exclusiva en materia de Academias con sede central en Andalucía. (...) La necesidad de actuación coordinada de tales Academias dio lugar a la creación del Instituto de las Reales Academias de Andalucía por Ley 7/1985 de 6 de diciembre, el cual como corporación de derecho público integra a las Academias de Andalucía, las coordina entre sí y con la Junta de Andalucía, a la vez, crea y refuerza vínculos con el Instituto de España, y otras instituciones administrativas y culturales españolas y extranjeras. (shrink)

"Vocablo infaltable en todas las corrientes políticas occidentales, el republicanismo ha tendido a convertirse, en los últimos tiempos, es una suerte de significante vacío al que se apela sin más como sinónimo de justicia, de balance de poderes o de plena institucionalidad. En un libro que recupera el fundamental legado de Cicerón, Juan Acerbi presenta una serie de aspectos que se sumergen en las oscuras aguas de la tradición republicana para aclarar conceptos y aristas que, aún desde su latencia, (...) determinan muy de cerca el derrotero de las prácticas gubernamentales contemporáneas. Signado por el análisis de la performatividad del discurso político, de los usos de las justificaciones religiosas y de la íntima ligazón entre símbolos, formas de participación ciudadana, temporalidades y otros recursos para la conservación y ampliación del poder, este volumen recorre los meandros de la metapolítica para dejar al desnudo el cuerpo vivo del yo que sostiene a la república. Allí, el estudio sobre virtud del líder político, comprendido como un ser diferente del resto, demuestra que hace falta todavía sospechar de los vínculos entre un republicanismo cargado de razón pública y el capitalismo, que pretende que determinadas formas vacuas, exánimes, ocupen el lugar de los pensantes. A contrapelo de la desquiciada celebración de la inmediatez que se observa en nuestros días, Acerbi retoma un aspecto cardinal para cualquier pensamiento que pretenda ser político: la distinción entre lo necesario y lo contingente y la ubicación de toda acción política en el segundo de esos polos. De ese modo, apela a la palabra como forma fundamental de lo humano y logra ver, bajo un mismo cristal, eventos pasados, presentes y futuros que desenmascaran cualquier ilusión de una vida autoevidente." Hernán Borisonik. (shrink)

In this article a view of emotional experience is set out that conceives emotional experience as a kind of perceptual experience. It is argued that both this view is embodied both by neuroscience of emotion and developmental psychology of emotion, although a significant part of recent research in experimental psychology has resorted to a kind of emotional stimuli that hardly square with the non-negotiable insight that perceiving is scouting. Finally, it is suggested that social referencing is in the backstage of (...) socalled paradigmatic scenarios, which provide the basis for emotional learning and in which emotions are typically shown. (shrink)

El artículo trata de dos argumentos, los de la Circularidad y la Polaridad, que llevaron a Wittgenstein a sostener que la gramática es autónoma: que no hay hechos del mundo que justifiquen la verdad de sus reglas. Se señala que el Argumento de la Polaridad es consustancial a doctrinas centrales de la filosofía pos-tractariana de Wittgenstein y cómo la aceptación de que la gramática es autónoma le obligó a desmantelar aspectos centrales de la metafísica y la filosofía del lenguaje y (...) de la lógica del Tractatus que hacían posible ofrecer una justificación modal de la sintaxis lógica.This paper deals with two arguments, the Circularity Argument and the Polarity Arguments, that led Wittgenstein to claim that grammar is autonomous, i.e., that no rule of grammar can be justified by providing a fact as a reason to believe in its truth. It is argued that the Polarity Argument is intimately linked to central doctrines of Wittgenstein’s post-tractarian philosophy and shown how the acceptance of the autonomy of grammar forced Wittgenstein to give up the project of providing a modal justification of the rules of logical syntax. (shrink)

The question of the trait that would distinguish human beings from the rest of the animals has kept humanity awake for centuries. Their ability to express themselves through words, their use of reason, their self-awareness of their finiteness or their capacity to produce and appreciate the art have been some of the faculties that, over the centuries, have come to give humanity a justification for its position in the world. With the advent of Artificial Intelligence, many of these attributes came (...) to be questioned thanks to the ability of non-biological entities to produce, among other performances, artistic and literary works. In this article we will revisit some of the topics that have allowed us to delineate the limits of what is human and, in the light of the latest technological advances, to question the link that humanity, technology and artistic creation have with each other today. (shrink)

En Investigaciones filosóficas y otros escritos postractarianos Wittgenstein rechazó la concepción de lo mental que incorpora la Tesis de Brentano. Ese rechazo, dirigido específicamente contra la idea de que los pensamientos representan la realidad conteniendo representaciones que concuerdan con ella, denuncia una confusión gramatical: los objetos a los que se dirigirían los pensamientos son sombras proyectadas por la gramática del lenguaje. Autores como Hacker y Glock consideran que esa confusión se produce al asimilar las oraciones mediante las cuales se adscriben (...) estados mentales a oraciones transitivas sin verbos psicológicos. El presente trabajo argumenta a favor de una imagen mucho más compleja de los medios utilizados por Wittgenstein para rechazar la Tesis de Brentano. Se defiende también que en la visión corregida de la intencionalidad de lo mental desempeñan un papel decisivo los requisitos de inocencia semántica, expresivismo, sistematicidad del significado y del lenguaje como vehículo del pensamiento, ignorados hasta el momento. (shrink)

En este trabajo se plantea, en primer lugar, la conveniencia de distinguir en el proceso de la contrastación empirica de hipótesis y teorías entre observación cientifíca y percepción y, en segundo lugar, se muestra como el munda procesado a través de la percepción se erige en base o soporte empírico del conocimiento científico. Una de las consecuencias del trabajo es que Ia tesis de “la carga teórica" de Ia observación ha sido mal planteada, al dar par sentado que esa carga (...) teórica afecta tambien al procesamiento perceptivo de los outputs proporeionados al científico por el instrumental de observación.This paper first suggests that, in analyses of the empirical testing of hypotheses and theories, scientific observation should be distinguished from perception; and goes on to say that the world, as processed by perception, is the basis or empirical foundation of scientific knowledge. This thesis that observation is “theory-laden” has been flawed by its being articulated as applying not only to scientific observation but also to the perceptional processing of the output provided to the scientists by observational instruments. (shrink)

Se trata de una reseña del libro de Lordon, Fréderic, La sociedad de los afectos: por un estructuralismo de las pasiones. Buenos Aires, Adriana Hidalgo editora, 360 páginas. ARK: ark:/s18537960/sejo0udld.