The progress of Mathematics during the nineteenth century was characterised both by an enormous acquisition of new knowledge and by the attempts to introduce rigour in reasoning patterns and mathematical writing. Cauchy’s presentation of Mathematical Analysis was not immediately accepted, and many writers, though aware of that new style, did not use it in their own mathematical production. This paper is devoted to an episode of this sort that took place in Spain during the first half of the century: It (...) deals with the presentation of a method for numerically solving algebraic equations by José Mariano Vallejo, a late Spanish follower of the Enlightenment ideas, politician, writer, and mathematician who published it in the fourth (1840) edition of his book Compendio de Matemáticas Puras y Mistas, claiming to have discovered it on his own. Vallejo’s main achievement was to write down the whole procedure in a very careful way taking into account the different types of roots, although he paid little attention to questions such as convergence checks and the fulfilment of the hypotheses of Rolle’s Theorem. For sure this lack of mathematical care prevented Vallejo to occupy a place among the forerunners of Computational Algebra. (shrink)

Este ensayo aporta una visión distinta a la interpretación de los resultados comparados de PISA 2000 contra 2015. Donde no se sobredimensiona a los países con mejores condiciones iniciales, ni se estigmatiza a aquellos cuyas condiciones de partida son más difíciles. Por tanto, México no puede ser considerado como el país de la OCDE con el sistema educativo más ineficaz. No existe evidencia que demuestre que estas evaluaciones hayan tenido como consecuencia mejoras en la calidad de la educación. Palabras clave: (...) Calidad de la educación, Evaluación educativa. PISA 2015. (shrink)

Las metodologías docentes han ido adaptándose a los cambios de la sociedad, partiendo de un aprendizaje en el que el alumno tiene un papel más pasivo y se limita a escuchar una clase magistral, hasta aprendizajes más activos, utilizando metodologías como active learning, flipped learning, learning by teaching, rol play, entre otras.Esta investigación analiza la percepción de los estudiantes sobre el aprendizaje obtenido con la utilización de la metodología Learning by Teaching, para ello se trabaja con una muestra de 196 (...) alumnos de Grados en Administración y Dirección de Empresas, Marketing y negocios digitales. (shrink)

RESUMEN La neurociencia ha proporcionado valiosas herramientas para analizar problemas filosóficos; sin embargo, el debate sobre el papel de las evidencias neurocientíficas en la explicación de determinados fenómenos mentales sigue abierto. La discusión se centra en la experiencia mística y sus bases neuronales, lo que permite efectuar consideraciones más genéricas acerca de la legitimidad y el alcance de los razonamientos neurocientíficos cuando versan sobre algunos de los más conspicuos productos de la cultura. ABSTRACT Neuroscience has provided valuable tools for the (...) analysis of philosophical problems; however, there is an ongoing debate over the role of neuroscientific evidence in the explanation of certain mental phenomena. The discussion focuses on the mystical experience and its neuronal bases, which makes it possible to carry out more generic considerations regarding the legitimacy and scope of neuroscientific arguments when they involve some of the principal cultural products. (shrink)

In Ancient Greece, the figure of the hero was identified as a demigod, possessed of altruistic and virtuous deeds. When Pierre de Coubertin reinstated the Olympic Games, the athlete was personified as a modern hero. Its antithesis, the anti-hero, has more virtue that defects, no evil but he does not care on the means to achieve his goals. In the eyes of everyone involved in sports competition, these characters captivate and at the same time, create conflicts of ethics and aesthetics. (...) The purpose of this paper is to perform an ethical reflection linked to principles that contribute for the human growth and accomplishment, as well as the aesthetic on the perception of the sensitive, reverberated by sensations and feelings emerging from athletes. Connecting the ethic with the aesthetic spheres, we could have in the sports a phenomenon walking toward a common point between moral and aesthetic, between the good and the beauty. (shrink)

The aim of this paper is to analyze the idea of general resurrection of the dead at the end of times in the synoptic Gospels. We intend to clarify whether this concept can be interpreted as a transposition of the parallel belief contained in some intertestamental writings, or if the singularity of the religious experience expressed in the synoptic Gospels establishes an inexorable moment of discontinuity with the previous apocalyptic framework, making it impossible to understand this doctrine on the sole (...) basis of its Jewish precedents. In order to accomplish our goal, we shall first study the general resurrection of the dead in the Q source, the references to this notion in the gospel of Mark, and its meaning in both Matthew and Luke. We will exclude from our treatment all the topics related with the resurrection of Jesus, and we will be focused on the explicit mentions of the doctrine of the resurrection of the dead as such. Since implicit beliefs are always difficult to assess, especially in the context of eschatological ideas, in which vagueness and absence of a systematic effort of exposition often prevail, we will not allude to other synoptic passages which have been regarded as potential expressions of the doctrine of the resurrection of the dead at the end of times. (shrink)

El trabajo analiza los aportes que Roig realiza al pensamiento decolonial, a partir de la consideración de tres cuestiones: 1) La “ampliación metodológica” y la consiguiente recuperación de textos propios de la tradición americana que representan una crítica frontal a la filosofía occidental moderna..

Several tasks in artificial intelligence require the ability to find models about knowledge dynamics. They include belief revision, fusion and belief merging, and abduction. In this paper, we exploit the algebraic framework of mathematical morphology in the context of propositional logic and define operations such as dilation or erosion of a set of formulas. We derive concrete operators, based on a semantic approach, that have an intuitive interpretation and that are formally well behaved, to perform revision, fusion and abduction. Computation (...) and tractability are addressed, and simple examples illustrate the main results. (shrink)

En su ensayo Para una crítica de la violencia, Walter Benjamin reivindica el fenómeno social de la huelga general revolucionaria teorizada por Georges Sorel en su obra Reflexiones sobre la violencia, como una figura ejemplar de lo que sería un “medio puro de la política”, al margen de cualquier forma legitimada de poder. En este marco, pocos comentadores contemporáneos advierten una discordancia conceptual entre ambos filósofos: para Sorel, la huelga revolucionaria es un mito social, mientras que el mito, categoría esencialmente (...) negativa en Benjamin, describe la violencia que aprisiona la vida y que se traduce en una forma de poder político superior. En este artículo quisiéramos demostrar esta discordancia conceptual para examinar en seguida cómo ha sido comentada por otros pensadores contemporáneos. La filosofía de la historia, la posibilidad de una acción política ética y la temporalidad mesiánica aparecen en el horizonte teórico que emparenta a estos filósofos y por el cual podría descifrarse su impasse conceptual. Esto se confirma si se despliega la idea de un “medio puro de la política”, pista que Benjamin ofrece sin profundizar y sobre la cual reenvía al pensamiento de un filósofo poco explorado, Erich Unger. En la última parte de este artículo desarrollaremos las claves dadas por Unger, que entran justamente en sintonía con la mención de la huelga general como medio puro de la política. In his Critique of violence, Walter Benjamin claimed that the social phenomenon of the revolutionary general strike was an example of what would be a “pure political mean”. In this context, not many contemporary commentators note an important conceptual incoherence between those two philosophers: for Sorel the revolutionary general strike is a social myth, while in Benjamin the category of myth, essentially negative, describes the violence that imprisons life and crystallizes it in a higher form of political power. In this article, we demonstrate this conceptual discrepancy in order to examine the way it has been approached by other philosophers. The philosophy of history, the possibility of an ethical political action, and messianic temporality, all appear on the theoretical horizon linking these philosophers, and through these ideas a conceptual impasse can be decoded. Moreover, this horizon can be confirmed if we follow the idea of a “pure political means” that Benjamin proposes and which moves forward to the thought of an unexplored philosopher mentioned by him: Erich Unger. In the last part of this article we will develop the keys given by Unger, which fall right in line with the notion of the general strike as a pure political mean. (shrink)

Meeting 5G high bandwidth rates, ultra-low latencies, and high reliabilities requires of network infrastructures that automatically increase/decrease the resources based on their customers’ demand. An autonomous and dynamic management of a 5G network infrastructure represents a challenge, as any solution must account for the radio access network, data plane traffic, wavelength allocation, network slicing, and network functions’ orchestration. Furthermore, federation among administrative domains (ADs) must be considered in the network management. Given the increased dynamicity of 5G networks, artificial intelligence/machine learning (...) (AI/ML) solutions are strong candidates able to learn, and take quick provisioning decisions upon fast changes in network conditions. Therefore, this chapter presents an analysis of the state-of-the-art solutions for 5G networks’ management, where AI/ML solutions are discussed and compared with traditional methods. Additionally, the chapter provides a technology overview of both standards, and existing solutions regarding the 5G network management, and directions toward the integration of AI/ML in 5G networks. (shrink)

In this paper we study the axiomatic system proposed by Bourbaki for the Theory of Sets in the Éléments de Mathématique. We begin by examining the role played by the sign \(\uptau \) in the framework of its formal logical theory and then we show that the system of axioms for set theory is equivalent to Zermelo–Fraenkel system with the axiom of choice but without the axiom of foundation. Moreover, we study Grothendieck’s proposal of adding to Bourbaki’s system the axiom (...) of universes for the purpose of considering the theory of categories. In this regard, we make some historical and epistemological remarks that could explain the conservative attitude of the Group. (shrink)

This study tested a structural model of cognitive-emotional explanatory variables to explain performance in mathematics. The predictor variables assessed were related to students’ level of development of early mathematical competencies (EMCs), specifically, relational and numerical competencies, predisposition toward mathematics, and the level of logical intelligence in a population of primary school Chilean students (n = 634). This longitudinal study also included the academic performance of the students during a period of four years as a variable. The sampled students were initially (...) assessed by means of an Early Numeracy Test (ENT), and, subsequently, they were administered a Likert-type scale to measure their predisposition toward mathematics (EPMAT) and a basic test of logical intelligence (TILE). The results of these tests were used to analyse the interaction of all the aforementioned variables by means of a structural equations model. This combined interaction model was able to predict 64.3% of the variability of observed performance. Preschool students' performance in EMCs was a strong predictor for achievement in mathematics for students between 8 to 11 years of age. Therefore, this paper highlights the importance of EMCs and the modulating role of predisposition toward mathematics. Also, this paper discusses the educational role of these findings, as well as possible ways to improve negative predispositions toward mathematical tasks in the school domain. (shrink)

This paper examines Aristotle's notion of autonomy and its implication for the mechanicism/autonomy debate. We introduce the basic principles of Aristotle's scientific framework, including his theory of four causes for the explanation of nature. We draw parallels between these notions of autonomy and causation and autopoietic theory, dynamical systems and robotics, suggesting that they may be compatible with Aristotle's framework. We argue that understanding the problem of design of autonomous robots may benefit from the consideration of integration of Aristotle's causes, (...) while robotics, in turn, may contribute to the debate providing a common ground for epistemological and ontological notions of autonomy. (shrink)

The authors describe the intensity and orientation of the corporate social responsibility reporting in four Spanish industries and explore the relationship that exists between both concepts and an independent measurement of reputation for CSR. The results demonstrate that the CSR reporting is especially relevant and useful in the finance industry. Finance companies report significantly more CSR information than most industries in Spain, and this reporting is more closely linked to their CSRR than the CSR reporting of basic, consumer goods and (...) services industries. (shrink)

En los escenarios universitarios cada vez resulta menos extraño toparse con investigaciones que indagan por la escritura filosófica proveniente de centros no hegemónicos de producción de conocimiento. Nosotros, que hemos tenido la oportunidad de acercarnos al pasado del ejercicio de la filosofía en el actual territorio colombiano, quisimos hacer una convocatoria pública de escritos dedicados a identificar temas, preguntas y formas en que la variopinta comunidad de la filosofía local está escribiendo su propia historia.

We give $A_p$ type conditions which are sufficient for two-weight, strong $$ inequalities for Calderón-Zygmund operators, commutators, and the Littlewood-Paley square function $g^*_\lambda $. Our results extend earlier work on weak $$ inequalities in [13].

Cuba faces a dilemma between continuing its current portfolio of biotechnology drugs and vaccines with lower profitability or renewing its product portfolio with the associated costs and risks.

This paper shows the brain correlates of Cloninger’s personality model during the presentation of social scenarios under positive or negative valence situations. Social scenarios were constructed when participants played the Dictator game with two confederates that had two opposites roles as the cooperator and non-cooperator. Later the same day during a fMRI scanning session, participants read negative and positive situations that happened to confederates in the past. Participants were asked to think “how do you think those people felt during that (...) situation?” A dissimilarity matrix between stimuli were obtained from fMRI results. Results shown that Harm Avoidance trait people make use of right middle frontal gyrus and left superior frontal gyrus to discriminate between Coop and NoCoop. Cooperation as a trait makes use of the right superior temporal gyrus and the right precuneus to discriminate between Coop and NoCoop in positive social scenarios. Finally, Self-directedness trait people make use of the right inferior parietal lobe to discriminate between Coop and NoCoop in negative social scenarios and the right precuneus to discriminate between Coop and Strangers. An intuitive link between discrimination findings and behavioral patterns of those personality traits is proposed. (shrink)

Moderation and liberalism are different and in some cases antagonistic concepts. In recent years, the view that Sieyès’s idea of constituent power is a moderate and liberal rendering of sovereignty has gained acceptance in intellectual history and constitutional theory literature. This claim is based on the premise that radical and illiberal readers of Rousseau’s idea of sovereignty, such as Robespierre and the Jacobins, were opposed to representing the general will (volonté générale). Thus, constituent power as the exercise of power by (...) extraordinary representatives to draft a constitution would be a liberal attempt at political moderation in the French revolution. In contrast to this liberal reading, my analysis shows that Sieyès’s idea of constituent power is an illiberal attempt at political moderation. Against moderate liberal theories, constituent power demands that the extraordinary representatives of the constituent assembly must will, deliberate, and act as if they were the people themselves. These representatives have absolute powers and the mandate to create a constitution but also the imperative to perceive and mirror the sovereign will. From a political theory approach, I conclude that constituent power is not a liberal idea but a key notion of moderate illiberalism that prevailed during the French Revolution. (shrink)

Este es artículo es una reflexión en torno a la sociedad VUCA y BANI en la que nos hallamos inmersos. Tras caracterizar a una y otra, se describe las dos crisis que han marcado a esta sociedad: la primera, es la crisis económico-financiera del 2008 y, la segunda, es la crisis que generó la COVID-19 (2019). A estas dos, se le unía otra subyacente, en la sociedad, que es la llamada “crisis de valores” que alcanzó a distintas partes de la (...) sociedad. También, se describe cómo en las últimas dos décadas se ha agravado una crisis medio ambiental que se está produciendo a escala mundial. Además, a estas dos crisis, se añade una crisis geopolítica de alcance imprevisibles, para el conjunto, de la población mundial que se refleja en la invasión por parte de Rusia de Ucrania y el agravado conflicto palestino-israelí con las consecuencias que tienen tanto una como la otra en la población mundial. El impacto de esta situación que se refleja en la sociedad lleva al autor a plantearse su impacto en las personas, en las distintas partes implicadas en la tarea de educar y el reflejo/la necesidad de unas voces éticas en la Educación. (shrink)

Purpose: This systematic review aimed to analyze the impact that the COVID-19 lockdown had on the amount of physical activity performed by university students.Materials and Methods: A systematic electronic search for studies providing information regarding physical activity levels pre and during COVID-19 pandemic in university students was performed up to 20th October 2020 in the databases Cochrane Library, PubMed, SPORTDiscus, and Web of Science. The risk of bias of external validity quality of included studies was assessed by means of those (...) the Newcastle-Ottawa Scale. The quality of the evidence for main outcomes was graded using the Grading of Recommendations Assessment, Development and Evaluation approach.Results and Conclusions: A total of 10 studies were selected. Physical activity levels were assessed by means of questionnaires and accelerometer. Risk of bias was regarded as low and high in six and four investigations, respectively. The quality of evidence was downgraded to low. A significant reduction of physical activity levels were observed in 9 studies. Compared to pre-lockdown values, five studies showed a reduction of light/mild physical activity between 32.5 and 365.5%, while seven studies revealed a reduction of high/vigorous physical activity between 2.9 and 52.8%. Walking, moderate, vigorous, and total physical activity levels have been reduced during the COVID-19 pandemic confinements in university students of different countries. Despite of the reductions, those who met the current minimum PA recommendations before the lockdown generally met the recommendations also during the confinements. (shrink)

One of the main tools in the study of nonmonotonic consequence relations is the representation of such relations in terms of preferential models. In this paper we give an unified and simpler framework to obtain such representation theorems.

Recent research has shown that cultural, linguistic, and sociodemographic peculiarities influence the measurement of trait emotional intelligence. Assessing trait EI in different populations fosters cross-cultural research and expands the construct’s nomological network. In mental health, the trait EI of clinical populations has been scarcely researched. Accordingly, the present study examined the relationship between trait EI and key sociodemographic variables on Trait Emotional Intelligence Questionnaire datasets with mental healthcare patients from three different Spanish-speaking countries. Collectively, these datasets comprised 528 participants, 23% (...) from Chile, 28% from Peru, and 49% from Spain. The sociodemographic variables we used for trait EI comparisons were gender, age, educational level, civil status, and occupational status. Analyses involved Multigroup Exploratory Structural Equation Modelling and analysis of covariance. Our results revealed significant between-country differences in trait EI across the studied sociodemographic variables and interactions between these variables. Measurement invariance across the datasets was attained up to the scalar level regarding gender and education, although analyses on age, civil status, and occupation displayed non-invariance. The resultant psychometric evidence supports the suitability of the TEIQue-SF for the accurate cross-cultural assessment of trait EI in mental health settings. It also highlights the importance of incorporating trait EI into extant psychotherapeutic frameworks to enhance non-pharmacological treatment efficacy. (shrink)

El propósito de esta investigación es caracterizar la inversión española en Ecuador, y analizar las percepciones sobre ésta de las empresas ibéricas que desarrollan su actividad en esta república Latinoamericana. Esta información es de especial relevancia para las instituciones gubernamentales, y para los potenciales inversores. Para realizar el trabajo se utilizó una metodología cualitativa con una perspectiva socioeconómica de tipo exploratoria de bola de nieve. Los resultados muestran como principal conclusión que los diez años del gobierno del presidente Rafael Correa (...) han sido positivos para la inversión en términos generales debido a la continuidad del gobierno que influyó en una mayor estabilidad política y social, que dio lugar a un periodo de crecimiento económico por encima de muchos países desarrollados. En relación a las multinacionales españolas, también fue favorable, por su participación en grandes proyectos de obra civil que supusieron importantes ingresos en una época de recesión económica y reducida inversión en España. (shrink)

Este trabajo tiene la finalidad de discutir el papel de los intelectuales, su importancia como críticos de la sociedad en que viven y, por lo tanto, su participación miitante. No obstante, esa figura del intelectual, aliada y nacida con la modernidad, va perdiendo espacio con el intelectual-investigador que está más preocupado con la producción científica dentro de los claustros universitarios como de los grandes centros de investigación. Para el caso, se tomó como referencia dos figuras paradigmáticas de la intelectualidad argentina (...) como José Aricó y Beatriz Sarlo. (shrink)

This article analyzes the Copernicus’ position in the Renaissanse Humanism. Copernico belongs in time and literary activities to the second Humanism. His printed work within the Humanae litterae is merely symbolic. But his scientific work reflects the so called “dream of humanism”, and that is to conquer a new civilization by the means of languages and classic cultures recovering. Far from the controversy against the contemporary science , Copernicus’ references and criticisms to the greek and latin authors act as a (...) support for the new model of Universe. (shrink)

Constituent power is a key concept in democratic theory and constitutional law. The French term pouvoir constituant was coined by Sieyès in the context of the French Revolution in his famous pamphl...

En Colombia se camina hacia la constitución de un Sistema Educativo Indígena Propio en el que se insiste más en “lo propio” que en la interculturalidad. Sin embargo, se apela a este enfoque epistemológico y pedagógico en 3 sentidos: 1) La apropiación de la escolaridad occidental como mediación garante del derecho a la educación diferenciada. 2) Los sujetos de aprendizaje son los colectivos, no los individuos, los saberes no son discretos sino holísticos, la vivencialidad orienta las didácticas y la resolución (...) de problemas valida los saberes. Así, la comunidad se abre al cambio sin perder la identidad. 3) El diálogo de saberes parte de una apertura hospitalaria al saber del otro. La ampliación del horizonte hermenéutico transforma a los sujetos, pero no los diluye sustituyendo paradigmas. (shrink)