Nowadays, the quality standards of higher education institutions pay special attention to the performance and evaluation of the students. Then, having a complete academic record of each student, such as number of attempts, average grade and so on, plays a key role. In this context, the existence of missing data, which can happen for different reasons, leads to affect adversely interesting future analysis. Therefore, the use of imputation techniques is presented as a helpful tool to estimate the value of missing (...) data. This work deals with the academic records of engineering students, in which imputation techniques are applied. More specifically, it is assessed and compared to the performance of the multivariate imputation by chained equations methodology, the adaptive assignation algorithm based on multivariate adaptive regression splines and a hybridization based on self-organisation maps with Mahalanobis distances and AAA algorithm. The results show that proposed methods obtain successfully results regardless the number of missing values, in general terms. (shrink)

The current COVID-19 crisis may have an impact on the mental health of professionals working on the frontline, especially healthcare workers due to the increase of occupational psychosocial risks, such as emotional exhaustion and secondary traumatic stress. This study explored job demands and resources during the COVID-19 crisis in predicting emotional exhaustion and STS among health professionals. The present study is a descriptive and correlational cross-sectional design, conducted in different hospitals and health centers in Spain. The sample consisted of 221 (...) health professionals with direct involvement in treating COVID-19. An online survey was created and distributed nationwide from March 20 to April 15 which assessed: sociodemographic and occupational data, fear of contagion, contact with death/suffering, lack of material and human protection resources, challenge, emotional exhaustion, and STS. Descriptive findings show high levels of workload, contact with death/suffering, lack of MHPR and challenge, and are moderately high for fear of contagion, emotional exhaustion, and STS. We found an indirect significant effect of lack of MHPR on predicting emotional exhaustion through the workload and on STS through fear of contagion, contact with death/suffering, and workload. To conclude, this study examines the immediate consequences of the crisis on health professionals' well-being in Spain, emphasizing the job demands related to COVID-19 that health professionals are facing, and the resources available in these health contexts. These findings may boost follow-up of this crisis among health professionals to prevent them from long-term consequences. (shrink)

Desde su nacimiento bajo la pluma de Arthur Conan Doyle, Sherlock Holmes ha sabido adaptarse a los nuevos tiempos; en la actualidad, existen series, películas, videojuegos, e incluso, experiencias virtuales basadas en las obras originales. Este artículo lleva a cabo un análisis evolutivo del concepto de interactividad -desde la previrtualidad literaria de Gil González (2020) hasta la cultura participativa de Jenkins et al. (2015), el lectoespectador de Mora (2012), el interactor de Murray (1997) o el operador de Gubern (1996)-, en (...) los medios de la literatura, el cine y el videojuego en el corpus holmesiano. Para ello, se realiza una amplia revisión bibliográfica desde la perspectiva de la literatura comparada y los estudios intermediales, así como un abordaje crítico-analítico de algunas obras del universo del popular detective especialmente significativas en diferentes medios. (shrink)

¿En qué consistiría una filosofía de la universidad? ¿Cómo esbozar el modo en que ésta puede proceder? ¿Qué puede decir hoy la filosofía para quienes trabajan en esta institución? Para responder estas preguntas se propone revisar algunos de los textos en los que el pensador de origen argelino habla de manera directa sobre la universidad: Las pupilas de la Universidad, La Universidad sin condición y Cátedra vacante: censura, maestría y magistralidad. Los tres textos fueron escritos para ser leídos en público (...) como lecciones inaugurales o conferencias. La tesis de este artículo es que una filosofía de la universidad debe asumir que esta institución es el lugar en el que todo debe ser cuestionado y debe reflexionar críticamente sobre las metáforas que se usan para referirse a su razón de ser, su esencia y fundamento. Para desarrollar la idea central el artículo se organiza en cuatro partes: primero, se revisa el modo de proceder y las preocupaciones generales, a partir de la relación que se puede establecer con elementos de dos textos de Martin Heidegger; segundo, se examina las metáforas sobre la visión y la luz; tercero, se reflexionará sobre la destinación y razón de ser de la universidad; por último, se tratará la pregunta ¿quiénes somos nosotros en esta corporación de profesores y alumnos? (shrink)

Batteries are a fundamental storage component due to its various applications in mobility, renewable energies and consumer electronics among others. Regardless of the battery typology, one key variable from a user’s perspective is the remaining energy in the battery. It is usually presented as the percentage of remaining energy compared to the total energy that can be stored and is labeled State Of Charge (SOC). This work addresses the development of a hybrid model based on a Lithium Iron Phosphate (LiFePO4) (...) power cell, due to its broad implementation. The proposed model calculates the SOC, by means of voltage and electric current as inputs and the latter as the output. Therefore, four models based on k-Means, Agglomerative Clustering, Gaussian Mixture and Spectral Clustering techniques have been tested in order to obtain an optimal solution. (shrink)

This paper aims to enhance security in IoT device networks through a visual tool that utilizes three projection techniques, including Beta Hebbian Learning (BHL), t-distributed Stochastic Neighbor Embedding (t-SNE) and ISOMAP, in order to facilitate the identification of network attacks by human experts. This work research begins with the creation of a testing environment with IoT devices and web clients, simulating attacks over Message Queuing Telemetry Transport (MQTT) for recording all relevant traffic information. The unsupervised algorithms chosen provide a set (...) of projections that enable human experts to visually identify most attacks in real-time, making it a powerful tool that can be implemented in IoT environments easily. (shrink)

Vers la fin des années 1750, une Académie de Mathématiques fut créée au sein de l’Académie Militaire de la Garde du Corps à Madrid, dirigée par Pedro Padilla (1724-1807?) jusqu’à sa fermeture en 1760. En 1753, Padilla commença à publier son Cours Militaire de Mathématiques (1753 -1756) pour l’usage de cette Académie. Le besoin de textes mathématiques en espagnol dans le domaine militaire a conduit à la création en 1757 de la Société Royale Militaire de Mathématiques à Madrid sous la (...) direction de Pedro de Lucuce (1692-1779), lui aussi directeur de l’Académie Militaire de Mathématiques de Barcelone depuis 1738. Les membres de la Société ont été chargés de l’élaboration d’un cours complet dans lequel les mathématiques étaient considérées comme essentielles à la formation militaire des officiers artilleurs et des ingénieurs militaires. La Société, supprimée en 1760, a réussi à réunir une excellente bibliothèque scientifique et technique servant à son tour à fournir des futures bibliothèques militaires. Le but de cette contribution est d’explorer et de comparer la manière dont l’étude des mathématiques a été abordée dans ces deux cas. Toward the end of 1750, an Academy of Mathematics was established within the Military Academy of Royal Guards of Madrid that was managed by Pedro Padilla (1724-1807?) until it closed in 1760. In 1753, Padilla authored and published his Military Course of Mathematics (1753-1756) for the specific use by this Academy. The further need for mathematical texts in Spanish for military training coursework led to the founding of the Royal Military Society of Mathematics of Madrid in 1757 under the direction of Pedro de Lucuce (1692-1779), the headmaster of the Barcelona Military Academy of Mathematics since 1738. The members of this Society were entrusted with producing a comprehensive course program in which mathematics was considered and presented as essential to training of military engineers and gunners. The Society of Mathematics was dissolved in 1760 but had succeeded in building an extensive scientific and technical book depository that later served as a valuable resource supplying other military libraries. The aim of this contribution is to explore and compare how the study of mathematics was approached in these two cases. (shrink)

En este trabajo realizo un examen crítico del reciente libro de Silvana Gabriela Di Camillo sobre la crítica de Aristóteles a la teoría platónica de las Ideas. El libro de Di Camillo es un trabajo muy serio cuya lectura recomiendo ampliamente. Sin embargo, considero que cuatro de las principales tesis que la autora defiende tienen varias dificultades y mi objetivo aquí es presentar argumentos detallados en contra de ellas: la interpretación de la distinción entre argumentos más y menos rigurosos del (...) tratado Sobre las Ideas; la tesis de que la separación es el blanco esencial de las críticas aristotélicas a las Ideas; la interpretación de las opciones que Platón tiene para responder al argumento del tercer hombre, y la tesis de que la separación de las Ideas debe entenderse como homonimia. In this paper I examine Silvana Gabriela Di Camillo's recent book on Aristotle's criticisms of Plato's theory of Ideas. Di Camillo's book is a very serious work that I highly recommend. Nevertheless, I consider that four of the main theses that the author defends face several difficulties and my aim here is to offer detailed arguments against them: the interpretation of the distinction between more and less accurate arguments of the treatise On Ideas; the thesis that separation is the essential target of Aristotle's criticisms against Plato's Ideas; the interpretation of the options available to Plato to reply to the third man argument; and the thesis that the separation of Ideas should be understood as homonymy. (shrink)

On 20 December 1973, an attack by ETA put an end to the lives of Franco's head of government, his chauffeur and his bodyguard. This had important consequences for both the dictatorship and the terrorist group. Based on the existing sources, historians have developed a fairly credible account of the events. Nevertheless, the fact that ETA had managed to assassinate such a prominent politician, combined with some loose ends in the police investigation and the absence of a sentence gave rise (...) to all kinds of speculation. Furthermore, the case of Carrero Blanco has inspired narratives of uneven quality. In this paper we examine the interrelationship between history, conspiracy theories and fiction surrounding the attack. (shrink)

El artículo estudia la tercera y última confrontación con el Tratado de la libertad de Schelling que Heidegger sostuvo en 1941. El objetivo consiste en explicar el contexto del problema del acabamiento de la metafísica del idealismo alemán, para analizar la posición que tiene Heidegger de las nociones de diferencia y voluntad forjadas por la filosofía tardía de Schelling; de esta manera, a partir del abismo de la voluntad se muestra la intersección entre la filosofía de la libertad de Schelling (...) y la ontología del evento de Heidegger. (shrink)

There are currently serious concerns that published scientific findings often fail to be reproducible, and that some solutions may be gleaned by attending the several methodological and sociological recommendations that could be found in the literature. However, researchers would also arrive at some answers by considering the advice of the philosophy of science, particularly semantics, about theses on truth related to scientific realism. Sometimes scientists understand the correspondence thesis of truth as asserting that the next unique empirical confirmation of a (...) hypothesis suffices to attribute truth to it provisionally. Such empiricist bias is not necessarily at the core of CTT, but Mario Bunge proposed the synthetic thesis of truth, based on CTT, to explicitly avoid the bias. STT requires considering a hypothesis corroborated, both by purely empirical confirmation and external consistency or compatibility with the bulk of existing background knowledge. While a capricious understanding of CTT could be rigged to recommend the “one shot game” in hypothesis testing, STT clearly demands the use of multiple approaches, empirical as well as theoretical, and it asserts that a scientific test is effective to the extent to which it is neither purely empirical, nor viewed in isolation. Pattern consistency together with an understanding of causal relations make confirmed hypotheses robust and more reliable. The militancy of the double mechanism of hypothesis control of STT can help mitigate the reproducibility crisis. Earl Werner’s research program in community ecology is an example of the use of STT criteria, which leads to the development of reliable, cross-checked, ecological results, with high predictive capacity. (shrink)

Frente al agotamiento del sistema democrático occidental y sus limitaciones, Luis Villoro ve al futuro y plantea la necesidad de construir nuevos Estados y replantear las sociedades a partir de tres ejes centrales: justicia, democracia ...

El problema de la libertad es uno de los más áridos de la filosofía. Paul Ricoeur intenta reconstruir el problema tomando el eje del análisis: la naturaleza dicotómica de los discursos sostenidos sobre la cuestión. De un lado, tenemos la “perspectiva de la tercera persona”. Desde esta mirada, cada acto que realizamos está causalmente determinada. Por el otro lado, tenemos la “perspectiva de la tercera persona”, en la que todas nuestras acciones libres parecieran brotar del “yo”. El problema comienza cuando (...) intentamos reconciliar ambas perspectivas. Este trabajo revisará algunos de los argumentos presentados por ambos lados, y el posicionamiento de Ricoeur en el debate. (shrink)

As we turn to the lived experience of memory, we are confronted with an eerie and enigmatic possibility: the possibility to remember what we ourselves never lived. How to explain phenomenologically this enigmatic but fundamental level of spatialized memory? I would like to come back to these issues in order to face yet another fundamental question: Does a phenomenology of spatialized memory require any onto-phenomenological concretizations?

Conceito oriundo do debate a respeito do movimento, o conatus, entendido como inclinação ou esforço, será um dos temas centrais da física seiscentista. Este artigo pretende explicitar o contexto de elaboração do conceito de conatus no século XVII, ou pelo menos na obra de três de seus principais filósofos: Descartes, Hobbes e Espinosa. Em Descartes, o conceito de conatus ainda se separa do conceito de movimento propriamente dito. Tal separação desaparece em Hobbes, para quem o conatus será apresentado como um (...) movimento ínfimo, com consequências não só para a Física, mas também para a Ética e a Política. Com Espinosa, por sua vez, o conceito ganhará contornos nitidamente ontológicos, tornando-se a chave para entender a essência das coisas singulares. (shrink)

La cuestión de las relaciones entre la búsqueda espiritual y el enraizamiento histórico y social de la acción humana, ha inquietado desde siempre a las personas que anhelan vivir con plenitud de sentido su propia existencia. Siguiendo la tradición de las grandes religiones, el artículo reflexiona en torno a dos afirmaciones complementarias, cuya unidad nos importa fundamentar analíticamente: «No hay acción social auténtica sin espiritualidad; no hay verdadera espiritualidad sin acción social consecuente». Lo difícil –se agrega- es construir este nexo (...) en la vida y mantenerlo. El autor conceptualiza el emprendimiento como un desarrollo humano integral y lo postula como el camino más seguro, por el que podemos avanzar. (shrink)

The goal of this article is to discuss several critical positions published recently in academic journals on the book The order of ‘Capital’, which aim is to lay the foundations for a republican reading of Marx’s major work. The core of the argument focuses against any attempt to derive normative proposals from scientific discoveries. From here, clarifying some key concepts and positions of the republican tradition is a necessary condition in order to show the close solidarity between Marx and Kant (...) about the formal and institutional conditions of any possible theory of justice. (shrink)

No prefácio da segunda edição da Crítica da razão pura, Kant propõe uma revolução metodológica em Filosofia similar à revolução copernicana: ao invés de tratar o observador como um centro fixo em torno do qual os objetos gravitam, pensá-lo antes como um móvel cujos movimentos cognitivos permitiriam explicar fenômenos anteriormente inexplicáveis. Alguns filósofos contemporâneos sugerem que essa revolução deva ser realizada de um ponto de vista geográfico, pois os problemas fundamentais da Filosofia parecem gravitar todos em torno do mesmo centro (...) fixo, o qual não é confrontado à fragilidade de sua posição geográfica contingente, o centro europeu. O objetivo deste artigo é reconstruir as linhas gerais dessa nova revolução copernicana como um procedimento de reavaliação de três vetores centrais do saber: o Eu, o Outro e o Todo. (shrink)

RESUMEN Este trabajo propone una reflexión sobre la técnica y sobre las condiciones de una crítica de la técnica en el horizonte contemporáneo del agotamiento de los paradigmas humanistas desde los que tradicionalmente se pensó esa crítica. Se plantea que la pregunta por la técnica ha de diferenciarse de la pregunta por los dispositivos técnicos, es decir, ha de partir de la ruptura con el supuesto humanista de la exterioridad entre técnica y humanidad. Una vez planteada esta escena poshumanista se (...) proponen distintas alternativas posibles en ese horizonte, que oscilan entre el cinismo antropotécnico y el experimentalismo radical postidentitario. Finalmente, este postula que la puesta en disposición del lenguaje y de la temporalidad son los parámetros clave del contemporáneo capitalismo de la información. Ante ello, se propone que el desafío fundamental de un poshumanismo radical es abrir una experiencia del lenguaje y del tiempo más allá de toda forma de disponibilidad. ABSTRACT This paper proposes a reflection on technology and on the conditions of a critique of technology in the contemporary horizon of the exhaustion of the humanistic paradigms from which that criticism was traditionally formulated. The argument states that the question about technique should be distinguished from the question about technical devices, i.e., it must break with the humanist assumption of the exteriority between technology and humanity. Once assumed this posthumanist scene, the paper analyzes different possible positions in that scene, ranging from anthro-potechnical cynicism to radical post-identitarian experimentalism. Finally, the paper postulates that the making available of language and temporality are the main parameters of contemporary capitalism ofinformation. In response, the fundamental challenge of a radical posthumanism is to open an experience of language and of temporality outside any form of availability. (shrink)