This is an interdisciplinary work product of reflection on the challenges today presented by a biological vision of the world regarding questions, concepts and notions of cosmology. Based on and in dialogue with the current state of biological research, this work deals with certain cosmological problems such as that between the living and the inert, the traditional division between the soul or the vital vegetative principle, sensitive or intellective; the problem of individuation and the concept of species, among others; the (...) solution found within classical philosophy in this paper takes into account the latest discoveries findings of modern biology. (shrink)

El objetivo del artículo consiste en iluminar el pensamiento aristotélico acerca de la catarsis a través del estudio crítico de los conceptos fundamentales que figuran en la definición de la tragedia de la Poética : mimesis, acción, y temor y compasión; mostrando que el efecto catártico procede de la intelección—condición teórica de posibilidad del valor práctico— por la vía indirecta del arte, de la realidad humana imitada por el poeta.The article’s purpose is the meaning of Aristotle’s thought about the katharsis (...) that tragedy accomplishes, throught a critical study on the mains concepts wich involved the definition of íragedyin the Poetics : imitation, action, and pity and fear; trying to show that the condition of this effect is the intelection, throught the indirect way of Arts, of the human reality imitated by the poet. (shrink)

We address the biological dynamics problem of the persistence of several species in conditions of non-existence of an equilibrium, including an example of stabilization by predation and the very controversial “competitive exclusion”. We give normal forms for various examples of such persistence and comments on the involved topology, which implies the presence of exceptional heteroclinic connections binding equilibria on the boundary.

A la croisée des chemins de la vulgarisation, de l'histoire et de la philosophie des sciences, l'auteur explore la nature de la connaissance et de la recherche via un mode d'exposition faisant largement appel à l'analogie. [extrait de la 4è de couv.].

In the framework of population dynamics, we start from the logistic equation describing the evolution of one species with limited food supply. A split device allows us to consider the population as two sub-populations x and y evolving analogously. The dynamical system has a one-parameter family of equilibria which is structurally unstable. Then small perturbations of the system (describing functional or ethological differentiations between the sub-species) lead in general to a new system involving a fast and a slow dynamics with (...) a finite number of equilibria. In simple situations where the differentiation is clearly either an advantage or an inconvenience for one of the subspecies, the stable equilibrium amounts to extinction of the disadvantaged subspecies (elementary Darwinism). Oppositely more complex differentiations (involving both advantages and inconveniences) often lead to stable equilibria with well-defined non zero proportions of the sub-populations (preservation of the biodiversity). Other examples are concerned with symbiosis-like differentiations, leading to preservation, whereas the opposite case (mutual nuisances) has an unstable equilibrium and lead to extinction of one or the other subspecies according to the initial conditions. The case of a scission into three subspecies is more rich in consequences. In certain cases, predator-prey relations lead to auto-organization phenomena with stable diversity-preserving diversity. Cases of instability are also possible, leading to orbits tending towards a poly-cycle.This implies some kind of pseudo-extinction: this amounts to “pseudo-periodic-like” orbits with “pseudo-periods” larger and larger, tending to infinity; each pseudo-period contains parts where one of the sub-populations practically vanish. Other non-linear perturbations lead to stable orbits. (shrink)

Claiming that individuals and communities get their choices, rhythms and practices biopolitically choreographed by temporal mechanisms that dictate which human experiences are included or excluded, Elizabeth Freeman states that those ‘whose activities do not show up on the official time line, whose own time lines do not synchronize with it, are variously and often simultaneously black, female, queer’. The narrative subject of Bernardine Evaristo's Girl, Woman, Other is black, female and queer in her design of a polyphonic text featuring twelve (...) black women moving through the world in different decades and occupying a temporal dimension that deviates from the linear and teleological modes. I draw on Edelman ; Freeman and Ahmed to analyse Evaristo's novel as a text informed by feminist queer temporality and thus explore these characters’ resistance to chrononormative assumptions like ‘the straight time of domesticated gender, capital accumulation, and national coherence’. In this light, I address her cast of ‘time abjects’ –lesbians, transgender women, feminist killjoys and menopausal females—as characterized ‘chronotopically’ as their racialized and gendered subjectivities coalesce temporally and spatially seeing their pasts and futures interact in a typically transpositional, queer and diasporic continuum. By invoking Freeman's notion of ‘erotohistoriography’ as a distinctive mode of queer time that not only recognizes non-linear chronopolitics, but decidedly prioritizes bodies and pleasures in self-representation, I contend that Evaristo depicts bodies as likewise performing this encounter between past and present in hybrid, carnal and trans-temporal terms. I conclude that in her joining temporality and corporeality, memory and desire, she suggests alternative ways of representing contemporary black British womanhood. (shrink)

We propose a mathematical model for a class of predator–prey systems more complex than the usual one, involving a commensalism effect consisting in an influence of the predator on the sustainability of the prey. This effect induces interesting new features, including bi-stability. The question of the possibility of reaching a certain attractor starting from initial conditions with a small population of predators, which presents an interest from the vewpoint of the onset of the predator in evolution, is addressed. We propose (...) two possibilities: the classical one involving adapted conditions in the far past and a new one using biodiversity, specifically the presence of another predator which operates as a starter, being displaced in the sequel. (shrink)

RESUMEN En el libro X de la Metafísica se trazan las líneas generales de una henología. La reconstrucción de la argumentación debe hacerse desde dos pilares fundamentales: (a) la guía de problemas o aporías que proporciona el libro iii y (b) el proyecto ontológico anunciado en el libro iv, donde se señala la relación entre ontología y henología. El rasgo fundamental de dicha henología sería su subordinación a la ontología. El artículo argumenta que para Aristóteles el rol de la henología (...) es ante todo destructivo, pues con dicha doctrina se pretende establecer -ante todo- la imposibilidad de considerar al "uno" (τὸ ἓν) como principio de los entes. ABSTRACT In the Metaphysics, especially in Book X, are drawn the general lines of a henology. For the proper understanding of this doctrine it is necessary to reconstruct its argumentation from two fundamental basis: (a) the guide of puzzles or aporias that book iii provides and (b) the ontological project announced in book IV where the relationship between ontology and henology is indicated. Once the explanations of Book X are framed a theory about unity (τὸ ἓν) can be systematically assembled, whose fundamental feature would be the following: henology as a science is a subordinate part of ontology. The role of henology is for Aristotle primarily destructive, that is, with this doctrine it is intended to establish the impossibility of considering the 'one' (τὸ ἓν) as a principle of the entities. (shrink)

This article states that research in skill acquisitionand executionhas underestimated the relevance of some features of attention. We present and theoretically discuss two essential features of attention that have been systematically overlooked in the research of skill acquisitionandexecution. First, attention alters the appearance of the perceived stimuli in an essential way; and second, attention plays a fundamental role in action, being crucial for solving the so called ’many-many problem’, that is to say, the problem of generating a coherent behavior byselecting (...) between many inputs and many potential outputs. We discuss the importance of these features for skill acquisition in sport. We also suggest empirical ways to assess the precise impact of taking them into consideration and at the same time we propose important implications for training derived from the ideas discussed in the paper. (shrink)

El objetivo de esta investigación, desarrollada en el contexto de educación virtual, fue mejorar las competencias investigativas de estudiantes universitarios. Este estudio cualitativo y de diseño investigación-acción se basó en un diagnóstico inicial con el que se identificó plagio académico, además de una autopercepción de nivel medio o bajo respecto de las habilidades investigativas de los alumnos. Durante la ejecución de las estrategias diseñadas, se aplicaron las técnicas de focus group y análisis documental de los ensayos estudiantiles. Se concluyó la (...) efectividad de las estrategias en la mejora de las competencias básicas, de búsqueda y análisis de información, y actitudinales. (shrink)

Desde un enfoque neuropsicológico, este estudio busca describir las operaciones cognitivas aplicadas durante la lectura. Este es un estudio de caso mixto, orientado a una muestra de 200 estudiantes de Enfermería. Para el recojo de información, se aplicó una prueba y un cuestionario de autopercepción lectora a los estudiantes; así como una guía de entrevista semiestructurada, dirigida a docentes. Entre los resultados, destaca que la velocidad lectora, la memoria y la atención impactan en el acto lector, además de las emociones (...) y los saberes previos. En conclusión, las operaciones cognitivas se vinculan directamente con los procesos asociados a la lectura. (shrink)

For a standard Finsler F on a manifold M, the domain is the whole tangent bundle T M and the fundamental tensor g is positive-definite. However, in many cases, these two conditions hold in a relaxed form only, namely one has either a psuedo-Finsler metric or a conic Finsler metric. Our aim is twofold. First, we want to give an account of quite a few subtleties that appear under such generalizations, say, for conic pseudo-finsler metrics. Second, we aim to provide (...) some criteria that determine when a pseudo-Finsler metric F obtained as a general homogeneous combination of Finsler metrics and one-forms is again a Finsler-metric -- or, more precisely, that the conic domain on which g remains positive-definite. Such a combination generalizes the known -metrics in different directions. Remarkably, classical examples of Finsler metrics are reobtained and extended, with explicit computations of their fundamental tensors. (shrink)

The present work is a contribution to the understanding of the sempiternal problem of the “burden of factor two” implied by sexual reproduction versus asexual one, as males are energy consumers not contributing to the production of offspring. We construct a deterministic mathematical model in population dynamics where a species enjoys both sexual and parthenogenetic capabilities of reproduction and lives on a limited resource. We then show how polygamy implies instability of a parthenogenetic population with a small number of sexually (...) born males. This instability implies evolution of the system towards an attractor involving both populations. We also exhibit the analogy with a parasite/host system. (shrink)

Se presenta una experiencia didáctica basada en la gamificación para la enseñanza de Historia del Arte en 2º de Bachillerato. Sobre la base del juego Party & Co., se diseñó un juego específico, ad hoc, para enseñar el Arte de las Primeras Vanguardias. Su implementación en el Colegio Hispano-Alemán de Madrid se desarrolló durante el curso 2020-2021. Los resultados obtenidos fueron muy satisfactorios, hasta el punto de haberse vuelto a poner en práctica -con algunas mejoras- durante el pasado curso académico.

Los centros penitenciarios poseen módulos educativos donde se procura dotar de enseñanza reglada a los internos para favorecer su reinserción, como se recoge en la Constitución Española de 1978 así como en los decretos de Enseñanza Secundaria para personas adultas. En este marco, se ofrece aquí una propuesta educativa para desarrollar un tema controvertido, como es el del Holocausto, en un ámbito educativo especialmente sensible a procesos educativos en situaciones de confinamiento, un aula de 4º de ESPA en un centro (...) penitenciario, a través del conocimiento de las responsabilidades criminales consideradas en los Juicios de Núremberg. Utilizando la representación dramática como recurso didáctico, ya que los internos tendrían que reproducir los distintos roles de los participantes en los juicios, se pretende, en las diferentes sesiones en las que está estructurada esta propuesta, tratar de las responsabilidades morales, entender la necesaria existencia de unas instituciones fuertes con códigos de convivencia adecuados y desarrollar la empatía con las víctimas del régimen nazi, con el objetivo de que sean desarrollados valores cívicos entre los internos. (shrink)

This paper addresses how impairments in prediction in young adults with autism spectrum disorder relate to their behavior during a collaboration. To assess it, we developed a task where participants play in collaboration with a synthetic agent to maximize their score. The agent’s behavior changes during the different phases of the game, requiring participants to model their sensorimotor contingencies to play collaboratively. Our results (n = 30) show differences between autistic and neurotypical individuals in their behavioral adaptation to the other (...) partner. Contrarily, there are no differences in the self-reports of that collaboration. (shrink)

Histamine is a multifunctional biogenic amine with relevant roles in intercellular communication, inflammatory processes and highly prevalent pathologies. Histamine biosynthesis depends on a single decarboxylation step, carried out by a PLP-dependent histidine decarboxylase activity (EC 4.1.1.22), an enzyme that still remains to be fully characterized. Nevertheless, during the last few years, important advances have been made in this field, including the generation and validation of the first three-dimensional model of the enzyme, which allows us to revisit previous results and conclusions. (...) This essay provides a comprehensive review of the current knowledge of the structural and functional characteristics of mammalian histidine decarboxylase. BioEssays 27:57–63, 2005. © 2004 Wiley Periodicals, Inc. (shrink)

El presente trabajo de investigación tiene como objeto el estudio de la legislación penal en la República de Colombia desde 1890 hasta la actualidad con la ley 599 de 2000, este último conocido como el vigente Código Penal. Lo anterior, conforme a la siguiente pregunta problémica ¿se ha dado un desarrollo oportuno de la legislación penal colombiana que otorgue soluciones fehacientes a las necesidades de una política criminal sólida desde sus inicios hasta la actualidad? Con ello, se pretende analizar las (...) diversas escuelas que han influido en los legisladores a la promulgación y tipificación de los delitos y sus penas en el marco jurídico penal colombiano. Se destaca ante todo, el análisis que a lo largo del desarrollo del ordenamiento jurídico colombiano abarca el contexto constitucional, doctrinal y jurisprudencial, los cuales, han logrado evidenciar el carácter de un óptimo “derecho penal” a lo largo del contexto histórico del país en mención. Se destaca así, la gran influencia de las Escuelas Clásica, Positivista y Finalista, que a hoy han venido a establecerse con fuerza en Colombia a lo largo de su codificación, desde 1980 hasta la actual ley 599 del año 2000. (shrink)

Studies demonstrating the benefits of ethical behavior at an individual level are scarce. The business ethics literature centers its analysis on unethical behaviors and their consequences, rather than ethical behaviors and their benefits. There is now considerable debate on the role of auditors in society and the function of accounting firms in the free market capitalist system. Specifically, the eminently ethical nature of the auditor’s work has been highlighted. Therefore, the aim of our paper is to show the impact of (...) auditors’ sustained ethical behavior: the trust it generates. This trust results in considerable benefits for the firm due to a reduction in the costs of the partner’s supervision of the auditor. The methodology chosen to validate these claims is a survey of partner of the audit firm in auditing companies. The results of this research confirm the hypotheses raised in the theoretical model. (shrink)

BackgroundMonitoring recovery–stress balance in sport is becoming more relevant to prevent training maladaptation and reach the optimal performance for each athlete. The use of questionnaires that identify the athlete’s recovery–stress state have much acceptance in sports due to reliability and useful, furthermore for its low cost. Identifying possible differences between sport modalities and sex is important to determine specific needs and possible intervention ways to keep a recovery–stress balance. The aim was to analyze the differences in the recovery–stress state and (...) mood states by sex and sport type during the competitive phase in young Mexican athletes. As a secondary objective, the psychometric properties of the Mexican version of the Recovery–Stress Questionnaire for Athletes were analyzed.MethodsA cross-sectional study was carried on with 461 athletes, 17.95 years old, from six sports disciplines. The RESTQ-Sport and Profile of Mood States were applied in a single moment. Differences by sex and sports modality were analyzed. RESTQ-Sport’s confirmatory factor analysis was performed after the stress and recovery theoretical structure of two stress and two recovery dimensions, and last, the concurrent validation with the POMS was carried on.ResultsSignificant differences by sex were found in the General Recovery and Sport Stress dimensions of the RESTQ-Sport as well as Vigor factor of the POMS, being higher for men; furthermore, both the Sport Recovery dimension of RESTQ-Sport and Cholera and the Fatigue and Depression factors from POMS also had differences by sport type, showing a less recovery and high stress for individual sport athletes. Goodness-of-fit indexes of the model for the RESTQ-Sport were acceptable. Pearson’s correlation between questionnaires was moderate.ConclusionThe recovery–stress state shows differences in the function of sex and sport modality. More special attention is suggested for women and individual sport athletes. The higher punctuation for men compared with women in sport stress dimension did not negatively affect the recovery–stress balance for male athletes. Finally, the Mexican context adaptation of the RESTQ-Sport provides a psychometric instrument suitable to assess the recovery–stress balance in Mexican athletes. (shrink)

Este artículo tiene como objetivo, asumir desde Colombia y América Latina,el texto más renombrado del filósofo alemánWalter Benjamin: Tesis sobre elConcepto de Historia. En mi interpretación, el tiempo histórico incluye larevolución, que Benjamin sitúa en la tradición de Marx y en la “Liga Espartaco” de Alemania, para reivindicar plenamente a los vencidos y excluidos.

Evolutionary multi-objective optimization algorithms have been successfully applied in many real-life problems. EMOAs approximate the set of trade-offs between multiple conflicting objectives, known as the Pareto optimal set. Reference point approaches can alleviate the optimization process by highlighting relevant areas of the Pareto set and support the decision makers to take the more confident evaluation. One important drawback of this approaches is that they require an in-depth knowledge of the problem being solved in order to function correctly. Collective intelligence has (...) been put forward as an alternative to deal with situations like these. This paper extends some well-known EMOAs to incorporate collective preferences and interactive techniques. Similarly, two new preference-based multi-objective optimization performance indicators are introduced in order to analyze the results produced by the proposed algorithms in the comparative experiments carried out. (shrink)

Hace tan solo unos ciento sesenta años que la denominada cultura olmeca salió a la luz. En la historia de la definición de su estilo artístico ocupa un lugar destacado el artista mexicano Miguel Covarrubias. En el artículo realizamos un análisis pormenorizado de su obra, intentando mostrar la evolución de sus ideas artísticas y la importancia que tuvieron a la hora de configurar lo que hoy se denomina «estética olmeca». Se analizan sus presupuestos teóricos y la enorme influencia que sus (...) tesis tienen, aun hoy, a la hora de analizar la que muchos consideran la «cultura madre» de Mesoamérica. (shrink)

Este ensayo quiere restablecer polémicamente una lectura de la revolución francesa y sus utopías a través de autores como Alexis de Tocqueville y Carlos Marx, continuando con Jean Jaurés y Pedro Kropotkine hasta la actualidad, en que se ubica la disputa central entre revisionistas, Francois Furet como el máximo exponente y los historiadores sociales Georges Lefebvre, Daniel Guérin, George Rudé y Albert Soboul. Para proponer una lectura de historia-presente sobre la revolución francesa y sus criterios de actualidad.

The impact of digital devices and the Internet has generated various changes at social, political, and economic levels, the repercussion of which is a great challenge characterized by the changing and globalized nature of today's society. This demands the development of new skills and new learning models in relation to information and communication technologies. Universities must respond to these social demands in the training of their future professionals. This paper aims to analyze the empirical evidence provided by international studies in (...) the last eleven years, related to the digital literacy of university students, including those pursuing degrees related to the field of education. Our findings highlight the fact that the digital literacy that is offered in universities to graduate/postgraduate students, in addition to treating digital literacy as a central theme, also focuses on perceived and developed self-efficacy. This is done by strengthening competencies related to digital writing and reading, the use of databases, the digital design of content and materials, and the skills to edit, publish or share them on the web, or applications aimed at treating digital literacy as emerging pedagogies and educational innovation. Secondly, we found studies related to digital competencies and use of the Internet, social networks, web 2.0, or the treatment of digital risks and their relationship with digital literacy. Thirdly, we found works that, in addition to focusing on digital literacy, also focused on different psychological constructs such as motivation, commitment, attitudes, or satisfaction.Systematic review registration:https://www.scopus.com/home.uri; https://www.recursoscientificos.fecyt.es/. (shrink)