For decades, psychostimulants have been the gold standard pharmaceutical treatment for attention-deficit/hyperactivity disorder (ADHD). In the United States, an astounding 9% of all boys and 4% of girls will be prescribed stimulant drugs at some point during their childhood. Recent meta-analyses have revealed that individuals with ADHD have reduced brain volume loss later in life (>60 y.o.) compared to the normal aging brain, which suggests that either ADHD or its treatment may be neuroprotective. Crucially, these neuroprotective effects were significant in (...) brain regions (e.g., hippocampus, amygdala) where severe volume loss is linked to cognitive impairment and Alzheimer’s disease. Historically, the ADHD diagnosis and its pharmacotherapy came about nearly simultaneously, making it difficult to evaluate their effects in isolation. Certain evidence suggests that psychostimulants may normalize structural brain changes typically observed in the ADHD brain. If ADHD itself is neuroprotective, perhaps exercising the brain, then psychostimulants may not be recommended across the lifespan. Alternatively, if stimulant drugs are neuroprotective, then this class of medications may warrant further investigation for their therapeutic effects. Here, we take a bottom-up holistic approach to review the psychopharmacology of ADHD in the context of recent models of attention. We suggest that future studies are greatly needed to better appreciate the interactions amongst an ADHD diagnosis, stimulant treatment across the lifespan, and structure-function alterations in the aging brain. (shrink)

"Un escritor ejemplar", texto de Hernando Téllez sobre Gómez Dávila, quizás una de las primeras aproximaciones hechas a una figura autoral que ya empezaba a despertar un profundo interés en la crítica literaria colombiana.

In this paper we exhibit a non-finitely based, finitely generated quasi-variety of De Morgan algebras and determine the bottom of the lattices of sub-quasi-varieties of Kleene and De Morgan algebras.

In this paper we describe the Priestley space of a quasi-Stone algebra and use it to show that the class of finite quasi-Stone algebras has the amalgamation property. We also describe the Priestley space of the free quasi-Stone algebra over a finite set.

This paper studies two aspects of John Duns Scotus’s Prologue to his Questions on the Metaphysics of Aristotle. The a priori argument to prove the nobility and dignity of metaphysics and the treatment of the question about the scientific object of metaphysics and its articulation with the other realities treated in this science. The paper also shows how Scotus’s prologue follows an interpretative tradition whose principal interlocutors are Thomas Aquinas and Avicenna.

In this paper we characterize the join irreducible elements of the free algebras on n free generators in the subvarieties of the variety V0 of pseudocomplemented De Morgan algebras satisfying the identity xx′* = ′*.

In lieu of an abstract, here is a brief excerpt of the content:Du Bois’s “Afterthought”A Pedagogical Variant for Continental PhilosophyHernando A. EstévezThe Souls of Black Folk is a pedagogical text that echoes continental philosophy’s aim of preparing humankind for the genuine practice of philosophical life through critique. In this text, Du Bois uses pedagogy to expose destructive and oppressive aspects of the Western tradition in its conflicting ideas and practices. In particular, I read Du Bois’s “afterthought” in Souls of Black (...) Folk as a form of critique that is expressly pedagogical, in that it prepares black individuals to play their destined role in this new era of history, and it calls for a continuous rethinking of the politics of higher education. While describing his early academic, political, and intellectual journey, Du Bois alludes to his initial and persistent concern with the impact of education on the formation of black men’s civil subjectivity. According to Du Bois, “My problem then was how, into the inevitable and logical democracy which was spreading over the world, could black folk in America and particularly in the South be openly and effectively admitted; and the colored people of the world allowed their self-government?” (Du Bois [1940] 1983, 29). For Du Bois such a question has sufficient political and social force to de-center the truths produced by the Western tradition as well as the precepts determining individuals’ subjectivity and self-government. Self-governance underlies Du Bois’s pedagogical and political projects as it is responsible for transforming black individuals’ self-perception and their relation to society. Du Bois approaches autonomy and self-governance pedagogically, by awakening individuals’ capacities for them by means of critique, through [End Page 82] questioning the historical basis on which the black race has been determined politically by the Western tradition.Du Bois’s essay Of the Training of Black Men (1902)1 begins by describing three “streams of thought,” which carry within the depth of their ideological flow ideas and ideals about humanity. Each stream has an epistemological and ontological force, which organizes the source of knowledge about the nature of black individuals’ being and existence. The force of the first stream of thought calls for an ethos that could unify humanity by multiplying its wants through worldwide cooperation. The second stream affirms the racism produced by theories explaining the origin of the black race, and the third calls for a civil struggle of black and whitened individuals whose political ideals challenge the presumed universal validity of the first two. Each stream of thought is followed by an afterthought, which questions the epistemological ground for moral and ontological claims of each of the three streams regarding the relationship between black individuals and the world. Du Bois deploys the pedagogical force of the afterthought most effectively in the political strength of the third stream of thought, in the emergence of suspicion. Through suspicion, a different possibility appears for thinking black individuals’ relationship with the world. This suspicion initiates a descriptive and normative analysis by challenging the pedagogical system on which beliefs and ideas about black individuals’ reality and future have been invented. In other words, suspicion dislodges history’s determinism by provoking self-reflection through critique of the Western philosophical tradition.In the words of Du Bois,And last of all there trickles down that third and darker thought—the thought of the things themselves, the confused, half-conscious mutter of men who are black and whitened, crying “Liberty, Freedom, Opportunity—vouchsafe to us, O boastful World, the chance of living men!” To be sure behind the thought lurks afterthought,—suppose, after all, the World is right and we are less than men? Suppose this mad impulse within is all wrong, some mock mirage from the untrue?(Du Bois [1903] 2006, 68; my emphasis)Furthermore, the “afterthought” and its immanent force of suspicion explore other subjective dimensions—the desires, struggles and dreams of the black race—which reveals alternative modes of being in the world.2 The political shift initiated by the afterthought’s critique is capable of opening up new historical categories and reconstructing the arena in which subjectivity occupies a new theoretical framework. The afterthought identifies and supersedes... (shrink)

In this note we give equational bases for varieties of quasi-Stone algebras.

Transition experienced by trans people shakes Social Sciences conven-tional understanding of time and space as static analytical units based on tradi-tional biological and physical axioms. Overcoming sexual binarism entails also questioning time and space as isolated elements to become, instead, entangled realities. Departing from trans studies and Halberstam´s concepts of queer temporalities and space as theoretical framework, this papers lines up the indi-vidual story of a trans man with physical disability and ASD with social “trans-formations”, by linking the exposition of (...) the body with the transgression of heteronormative cis time, to be replaced, gradually by trans temporality and new ways of cohabitating spaces. (shrink)

In this article, we aim to carry out a comparative analysis of the short stories The Idiots, by Joseph Conrad, and La gallina degollada, by Horacio Quiroga, whereby we introduce the term conjunction; in this case, the conjunction of horror. To this end, we refer to the key actions that are common to the two stories. For reasons of transparency, we avoid the excess of theories regarding intertextual relations, although we allude to one key theoretical concept for this study: the (...) parody, proposed by Bakhtin. Our purpose, however, is to emphasize our own conceptual proposal: that of the conjunction. It is our intention that the readers face themselves with the antecedent story which gives birth to the succeeding story, and reflect on the creative process, on the poetics itself. As the axis of articulation of this article, we highlight the influence of Conrad on Quiroga, and how both writers, in the above-mentioned stories, conceive the theme of horror based on the motif of the brothers who suffer physical and mental degradation, which trigger tragedies for the young couples. (shrink)

Entre Scylla y Caribdis -- El lenguaje adicional en Jacques Prévert -- L'étranger, absurdo y rebelión en Camus -- La existencia en profundidad.

Alasdair MacIntyre: narrative introduction to his work In the wake of the publication of the last book of the British philosopher Alasdair MacIntyre, Ethics in the Conflicts of Modernity: An Essay on Desire, Practical Reasoning, and Narrative, this work proposes a way to understand his bibliographical production in the context of the narrative of his life and his intellectual career. It is elaborated a periodization of the itinerary of MacIntyre, based on the references that the author himself has made of (...) his academic life and in the proposals of several scholars of his thought. It is concluded that the narrative examination of MacIntyre’s work reveals that his philosophical project is basically marked by Aristotle and Aquinas, whose thought helped our author a solid proposal on the main issues of moral philosophy and philosophy of religion. This work is conceived as introductory because it focuses only on MacIntyre’s books, but it’s expected to serve as a solid basis for a thorough critical study —especially from a chronological perspective— of his entire work, which includes chapters of books, papers, interviews, among others. (shrink)

Finite demi-p-lattices are described in terms of the poset of its join irreducible elements endowed with a suitable set of maps. Description of the free algebras of demi-p-lattices and almost-p-lattices with n free generators are given.

A inteligência artificial invadiu as áreas da vida e visa reconfigurar a própria vida, com impactos nos direitos humanos. Estas repercussões no desenvolvimento humano têm tanto detractores como defensores. O artigo tem como objetivo estabelecer implicações bioéticas e psicopolíticas da inteligência artificial para os direitos humanos. O artigo foi elaborado sob o modelo PRISMA e utilizou a hermenêutica analógica para interpretação dos textos. Os resultados indicam benefícios, ameaças e oportunidades para as liberdades fundamentais e os direitos à equidade, identidade, autodeterminação, (...) autonomia, privacidade e bem-estar. As conclusões referem-se à integração de dispositivos, dados e algoritmos, que impactam os direitos humanos e suscitam a necessidade de refletir sobre a sua recriação, reformulação ou reconfiguração. (shrink)

Philosophizing the Americas establishes the field of inter-American philosophy. Bringing together contributors who work in Africana Philosophy, Afro-Caribbean philosophy, Latin American philosophy, Afro-Latin philosophy, decolonial theory, and African American philosophy, the volume examines the full range of traditions that have, separately and in conversation with each other, worked through how philosophy in both establishes itself in the Americas and engages with the world from which it emerges. The book traces a range of questions, from the history of philosophy in the (...) Americas to philosophical questions of race, feminism, racial eliminativism, creolization, epistemology, coloniality, aesthetics, and literature. The essays place an impressive range of philosophical traditions and figures into dialogue with one another: some familiar, such as José Martí, Sylvia Wynter, Martin R. Delany, José Vasconcelos, Alain Locke, as well as such less familiar thinkers as Arturo Alfonso Schomburg, Hilda Hilst, and George Lamming. In each chapter, the contributors find fascinating and productive matrices of tension or convergence in works throughout the Americas. The result is an original and important contribution to knowledge that introduces readers from various disciplines to unfamiliar yet compelling ideas and considers familiar texts from novel and prescient perspectives. Philosophizing the Americas stands alone as a representation of current scholarly debates in the field of inter-American philosophy. Contributors: Stephanie Rivera Berruz, Jacoby Adeshei Carter, Nadia Celis, Tommy J. Curry, Hernando A. Estévez, Daniel Fryer, James B. Haile III, Chike Jeffers, Lee A. McBride III, Michael Monahan, Adriana Novoa, Susana Nuccetelli, Andrea J. Pitts, Dwayne A. Tunstall, and Alejandro A. Vallega. (shrink)

The existence of current–time universe’s acceleration is usually modeled by means of two main strategies. The first makes use of a dark energy barotropic fluid entering by hand the energy–momentum tensor of Einstein’s theory. The second lies on extending the Hilbert–Einstein action giving rise to the class of extended theories of gravity. In this work, we propose a third approach, derived as an intrinsic geometrical effect of space–time, which provides repulsive regions under certain circumstances. We demonstrate that the effects of (...) repulsive gravity naturally emerge in the field of a homogeneous and isotropic universe. To this end, we use an invariant definition of repulsive gravity based upon the behavior of the curvature eigenvalues. Moreover, we show that repulsive gravity counterbalances the standard gravitational attraction influencing both late and early times of the universe evolution. This phenomenon leads to the present speed up and to the fast expansion due to the inflationary epoch. In so doing, we are able to unify both dark energy and inflation in a single scheme, showing that the universe changes its dynamics when \, at the repulsion onset time where this condition is satisfied. Further, we argue that the spatial scalar curvature can be taken as vanishing because it does not affect at all the emergence of repulsive gravity. We check the goodness of our approach through two cosmological fits involving the most recent union 2.1 supernova compilation. (shrink)

En el XIV Centenario de su muerte, bosqueja una vida y obra que influyeron fuertemente en el desarrollo posterior de la Iglesia y de Europa, y ejercieron un influyo escepcional en su sociológica y moral.

Este trabajo busca, en primer lugar, explicar por qué se puede considerar el aforismo como género filosófico en Nietzsche. Dos hipótesis se ofrecen a consideración. Tal vez, el aforismo es solamente un instrumento encargado de atacar la escritura filosófica tradicional (la argumentación continua en sus diversas formas), o, tal vez, es un género que halla su razón en una necesidad que brota del centro mismo de la filosofía de Nietzsche: el aforismo visto como expresión del cuerpo- pensamiento. El trabajo se (...) inclina a mostrar la viabilidad de esta segunda opción y, a partir de ella, la emergencia de un segundo problema. ¿Cómo es posible postular necesidad o razón en el centro de una filosofía del devenir? ¿Cómo conciliar la forma fragmentaria del aforismo con la voluntad de sistema? La conclusión será que, llevada al extremo, cualquier lectura de la obra de Nietzsche , como deseo de constituir una mirada global de su pensamiento, choca con la experiencia de una multiplicidad de autores y obras recogidos bajo el nombre Nietzsche. La voluntad de sistema conduce a la autodestrucción de la obra y de su intento de lectura. (shrink)

En su comentario a la Isagoge, Duns Escoto se pregunta dónde se halla el universal: ¿en las cosas o en el intelecto? Caracterizando al universal como universal lógico y accidente intencional de la esencia, en su respuesta se articulan la dimensión ontológica y la dimensión semántica del universal: con el intelecto que lo causa y con la cosa que denomina. Analizaremos estas dos relaciones y las implicaciones que se siguen en el orden de la predicación a partir del ejemplo propuesto (...) por Escoto: «hombre es universal». In his Questions on Porphyry’s Isagoge, Scotus asks about the place of inherence of the universal: ¿is it in the things or in the intellect? Being established the universal as logical universal and intentional accident of the essence, in Scotus’s answer the ontological and the semantical dimensions of the universal are articulated: with the intellect which causes it and with the thing it designates. We will analyse both of these relations and their implications in the order of predication taking into account Scotus’s example «man is universal». (shrink)

The article delves into the realm of child environmental activism, portraying it as a concerted response aimed at challenging the prevailing social and political status quo, which systematically underestimates the role of children in decision-making within political and social spheres. It highlights the paramount importance of the epistemological framework that encompasses children's experiences, emphasising how their exclusion from political and social discourse leads to epistemic marginalisation. This exclusion not only prevents children from assuming the role of epistemic agents but also (...) deprives them of agency and perpetuates existing inequalities. From a philosophical perspective, the article proposes a thorough analysis of children's epistemic agency, introducing the concept of 'epistemic capability'. It argues that, despite their social marginalisation, knowledgeable children can equip themselves with epistemic resources to interpret their reality and effect change. Furthermore, it posits that environmental activism plays a crucial role as an epistemic resource for children, facilitating the expression of their ideas, challenging dominant narratives, and addressing environmental and social issues head-on. The article emphasises the transformative potential of activism as an epistemic resource, enabling substantive participation and empowering children to navigate and transcend such marginalised circumstances. In conclusion, it highlights how child environmental activism not only challenges the status quo but also provides children with crucial tools for their development as epistemic and social agents, promoting significant change in power dynamics and in the fight for social and environmental justice. (shrink)

El cambio climático es uno de los mayores desafíos a los que nos enfrentamos en el siglo XXI. Los niños, niñas y adolescentes son especialmente vulnerables a sus efectos y han levantado su voz exigiendo justicia climática y un mayor reconocimiento en esta lucha ante la falta de atención de los estados. Aunque se han mejorado sus derechos para participar en la toma de decisiones, todavía no se han visto acciones concretas, especialmente en el sur global. En este artículo se (...) propone el concepto de «reconocimiento recíproco de capacidades» como una manera de empoderar a los niños, niñas y adolescentes. Se concluye que es fundamental abordar este reconocimiento a nivel micropolítico. (shrink)

En este trabajo se estudia la concepción de la filosofía y el método de la exageración propuesto por Günther Anders en su obra en dos volúmenes La obsolescencia del hombre (1956-1980). Si temáticamente el centro de la obra es la preocupación por la posible autodestrucción de la humanidad en la época atómica; Anders también propone una comprensión de la filosofía y de su método como correlato operatorio de dicha posible aniquilación. Esta revisión de la filosofía y su método constituyen la (...) justificación del tratamiento filosófico de la posibilidad de la autodestrucción de la humanidad. (shrink)

El punto de partida de esta investigación se concentra en el estudio de la crisis de lashumanidades en una economía de mercado hegemónica, movida por el lucro y la explotación. Enel proyecto del que se deriva este artículo y que tiene la fenomenología hermenéutica como enfoquemetodológico, conforme lo presentó Max van Manen (2016), se muestra el alcance y el aporte de una ética contemporánea frente a estos dos movimientos; asimismo, desde una lectura crítica de conjunto, las variantes de la formación (...) ética frente a la crisis actual de las humanidades en la que se reduce la persona a sujeto de rendimiento. El artículo se estructura en cuatro partes: primero, se contextualiza la investigación y la publicación misma; segundo, se detalla el proceso metodológico;tercero, se muestra brevemente el estado de la cuestión; y cuarto, se precisa el sedimento teóricocon variantes que integran la respuesta a la pregunta problema del proyecto, esto es: fundamentarla importancia de atender a la temporalidad como un problema ético sustantivo; la necesidad dedeconstruir la libertad como estrategia neoliberal de control; el sentido de desinstrumentalizar las emociones; y, la necesidad de cultivar la capacidad de indignarse y de promover una vidacontemplativa como prácticas experienciales del mundo de la vida. (shrink)

En este trabajo se estudia la concepción escotista del universal entendido como universallógico y accidente intencional, cuya función cognitiva se entiende como modo de aprehensión oconcepción de la esencia o naturaleza. El artículo se concentra en analizar las cuestiones 4 y 5 del comentario de Duns Escoto a la Isagoge. Se subraya la relación de los análisis escotistas con lateoría aviceniana del triple estatuto de la esencia sobre el telón de fondo de la teoría boeciana de los universales. Al final (...) del artículo se presenta brevemente el momento ontológico del universal tal comose puede ver en la teoría de la naturaleza común. (shrink)

El estudio se centra en el mesianismo político de Walter Benjamin y su relevancia para la violencia en Colombia. Benjamin critica la narración histórica desde la perspectiva de los vencedores, proponiendo una nueva forma de contar la historia desde la perspectiva de los vencidos. Esta perspectiva incluye un enfoque político y mesiánico, que busca redimir a los oprimidos y desechados de la historia. La primera parte del análisis sobre el mesianismo político de Walter Benjamin, versa en las tesis de Reyes (...) Mate. Benjamin critica el historicismo y defiende la memoria como una herramienta para rescatar la experiencia de los derrotados, dándoles voz y redención. La memoria, según Benjamin, es crucial para mantener viva la injusticia pasada y luchar contra el olvido, ofreciendo así una esperanza de redención. La segunda parte dirige la atención al conflicto armado como un lugar en el que se puede aplicar la redención político por Benjamin, dado que el conflicto armado en Colombia se examina a través de su historia y testimonios gráficos, resaltando la lucha cotidiana del pueblo. Se aborda la paradoja de un país con crecimiento económico y tradición democrática, pero con alta pobreza y un Estado frágil incapaz de garantizar seguridad y justicia. (shrink)

Cooperative learning (CL) is one of the pedagogical models that has had more application in the area of Physical Education (PE) in recent years, being highly worked in the initial training of teachers. The aim of the study is to check to what extent future PE teachers are able to apply in the classroom the PE training they have received at university, deepening their fears, insecurities and problems when carrying it out. Thirteen future PE teachers (7 girls and 6 boys) (...) aged 20.87±1.43 participated and, after having been trained in CL in various subjects, applied it in the classroom during their internship. A qualitative methodology was used, being the interviews, the teaching diaries and the seminars with the tutor the instruments of data collection used. Three categories of analysis were used: a) initial expectations in the application of the CL; b) problems encountered in its implementation; c) reflection about its application in the future. The results showed how the future teachers did not see their expectations of success fulfilled, encountering resistance from both students and teachers in PE. Furthermore, they reflect the need to continue training in a model that has infinite nuances so that it can be implemented satisfactorily. It is necessary to continue researching a pedagogical model with so many possibilities in the area of PE and with so much transversality on a social level. (shrink)