Over the last few years, a new methodology to address the P versus NP problem has been developed, based on searching for borderlines between the nonefficiency of computing models and the presumed efficiency. These borderlines can be seen as frontiers of efficiency, which are crucial in this methodology. “Translating,” in some sense, an efficient solution in a presumably efficient model to an efficient solution in a nonefficient model would give an affirmative answer to problem P versus NP. In the framework (...) of Membrane Computing, the key of this approach is to detect the syntactic or semantic ingredients that are needed to pass from a nonefficient class of membrane systems to a presumably efficient one. This paper deals with tissue P systems with communication rules of type symport/antiport allowing the evolution of the objects triggering the rules. In previous works, frontiers of efficiency were found in these kinds of membrane systems both with division rules and with separation rules. However, since they were not optimal, it is interesting to refine these frontiers. In this work, optimal frontiers of the efficiency are obtained in terms of the total number of objects involved in the communication rules used for that kind of membrane systems. These optimizations could be easier to translate, if possible, to efficient solutions in a nonefficient model. (shrink)

Continuadores posteriores de la teoría crítica de la sociedad han cuestionado a Adorno por caer en una lógica de la emancipación frustrada aparentemente contradictoria, que reflexiona sobre la dominación social en condiciones bajo las cuales, empero, se declaran cerradas las posibilidades de transformación histórica. Sin embargo, sostengo que su teoría social remite también a un concepto novedoso de la emancipación sin totalidad, relevante para la reconstrucción de la teoría crítica ante los cuestionamientos pluralistas lanzados hacia el concepto de “totalidad”.

La doctrina sugerida por el filósofo de Samos, al menos en lo que respecta al placer como fin de la vida dichosa, informa de ciertos rasgos teóricos los cuales convergen en una finalidad: la defensa de la vida feliz que, en sentido omnímodo, recoge variados aspectos de la existencia (material y anímica), siendo preeminente el propósito de un filosofar que busca de la salud del cuerpo y la imperturbabilidad del alma. Para ello, un conocimiento de la realidad de lo provechoso (...) y perjudicial, un bien que se limita a la experiencia del no sufrir en el cuerpo ni en el alma, tiene en la autosuficiencia del ser humano su criterio de adquisición; autosuficiencia que se logra en el reproche a la viciada participación en ciertas actividades de la πόλις y de sus instituciones, el desarraigo de aquellas riquezas y honores excesivos, además de las falsas creencias en los dioses. Todo esto integra lo que puede llamarse los tópicos éticos esenciales de una filosofía epicúrea. (shrink)

In Far-Right Revisionism and the End of History: Alt/Histories, historians, sociologists, neuroscientists, lawyers, cultural critics, and literary and media scholars come together to offer an interconnected and comparative collection for understanding how contemporary far-right, neo-fascist, Alt-Right, Identitarian, and New Right movements have proposed revisions and counter-narratives to accepted understandings of history, fact and narrative. The innovative essays found here bring forward urgent questions to diverse public, academic, and politically-minded audiences interested in how historical understandings of race, gender, class, nationalism, religion, (...) law, technology and the sciences have been distorted by these far-right movements. If scholars of the last twenty years, like Francis Fukuyama, believed that neoliberalism marked an "end of history," this volume shows how the far right is effectively threatening democracy and its institutions through the dissemination of alt-facts and histories. (shrink)

Con el presente libro se da razón del resultado investigativo y colaborativo que se realizó entre dos universidades chilenas, la Universidad Finis Terrae y la Universidad Alberto Hurtado, con cuatro universidades colombianas: la Universidad de La Salle (sede Bogotá), la Universidad Católica de Oriente, la Universidad Mariana de Pasto y la Universidad Católica de Pereira, en torno a la reflexión pedagógica y disciplinar que atañe a la educación religiosa escolar en ambos países. Esas disertaciones posibilitaron avanzar en la investigación y (...) hoy se reúnen en este texto, Intuiciones para el cultivo de la inteligencia espiritual en la Educación Religiosa Escolar desde la perspectiva de la libertad religiosa y de cultos. (shrink)

El humanismo cristiano constituye un permanente debate desde que el cristianismo entra en diálogo con la cultura y la filosofía en los primeros siglos, cuando recién formadas las primeras comunidades adherentes a la predicación de los apóstoles y, por tanto, anuentes al Evangelio de Jesucristo, surgen en ellas las primeras inquietudes de corte no solo religioso y teológico sino también filosófico, ético y antropológico, que tocan la esencia misma de esa religión a la cual muchos acaban de ingresar por la (...) vía de la conversión. (shrink)

Es reconocido desde hace tiempo por la crítica que en su estructura y contenido el libro de los signos comparte cierta semejanza con las secciones iniciales de los tres primeros evangelios. También sus matices teológicos propios han sido resaltados, así como sus fuentes. Este encuentro y diferencia entre el cuarto evangelio y los sinópticos ha divido a los estudiosos respecto al análisis de sus fuentes y sus rasgos teológicos, como lo son el uso de sus fuentes, los relatos de milagros, (...) su escatología y cristología. Este artículo pretende dar una mirada de conjunto a las líneas de investigación más relevantes en estos puntos. (shrink)

No siempre somos contemporaneos de nuestro presente. Las circunstancias cambian, pero los antiguos modos de pensamiento no se transforman necesariamente de acuerdo con las nuevas condiciones, y el resultado es que comenzamos a valorar los nuevos problemas que aparecen en el horizonte de la inercia de categorias aprendidas para pensar situaciones ya superadas. Este libro recopila una serie de ensayos, resultado de un esfuerzo intencional del autor por poner a tono los parametros de la reflexion con las nuevas circunstancias a (...) las que nos enfrentamos hoy en dia: Cuales son los puntos de referencia en que se debe inscribir la reflexion contemporanea en la Filosofia y las Ciencias Sociales? (shrink)

Within this essay, I seek to understand how the patriarchy impacts the concept of body memory and creates gendered bodily behaviors. I first explain and define the relationship between one’s incorporative memory and affective framing. Given this relationship, I explore what male validation is and how it becomes embodied. I argue that the formation of the incorporative memory and affective framing under the patriarchy creates an embodied experience of male validation. As women begin to understand gender roles, they shift how (...) they move their bodies, and continue to display this gendered movement because men validate it. (shrink)

A long-standing theme in discussion of perception and thought has been that our primary cognitive contact with individual objects and events in the world derives from our perceptual contact with them. When I look at a duck in front of me, I am not merely presented with the fact that there is at least one duck in the area, rather I seem to be presented withthisthing (as one might put it from my perspective) in front of me, which looks to (...) me to be a duck. Furthermore, such a perception would seem to put me in a position not merely to make the existential judgment that there is some duck or other present, but rather to make a singular, demonstrative judgment, that that is a duck. My grounds for an existential judgment in this case derives from my apprehension of the demonstrative thought and not vice versa. (shrink)

O artigo analisa a questão da crescente precariedade no mundo do trabalho à luz das teses do brasileiro Ruy Mauro Marini e do conceito de superexploração do trabalho, formulado por esse autor no âmbito de uma teoria marxista da dependência, a princípio, para designar regime específico das formações sociais latino-americanas. Nesse sentido, em um primeiro momento, analisamos algumas tendências mundiais em curso no mundo do trabalho e, em seguida, os processos de transformação nos regimes de superexploração do trabalho nos países (...) dependentes e sua atual apresentação fenomênica nos países capitalistas centrais. Ao fim, analisamos a vigência e a centralidade dessa categoria, assim como suas implicações para o devido entendimento da política e das novas morfologias da classe trabalhadora na América Latina e no mundo. (shrink)

Is it OK to lie to Siri? Is it bad to mistreat a robot for our own pleasure? Under what condition should we grant a moral status to an artificial intelligence (AI) system? This paper looks at different arguments for granting moral status to an AI system: the idea of indirect duties, the relational argument, the argument from intelligence, the arguments from life and information, and the argument from sentience. In each but the last case, we find unresolved issues with (...) the particular argument, which leads us to move to a different one. We leave the idea of indirect duties aside since these duties do not imply considering an AI system for its own sake. The paper rejects the relational argument and the argument from intelligence. The argument from life may lead us to grant a moral status to an AI system, but only in a weak sense. Sentience, by contrast, is a strong argument for the moral status of an AI system—based, among other things, on the Aristotelian principle of equality: that same cases should be treated in the same way. The paper points out, however, that no AI system is sentient given the current level of technological development. (shrink)

Este ensayo buscará presentar el problema de la virtualidad desde una perspectiva filosófica, dialogante con las formas contemporáneas de aprehensión del término, en consonancia con los desarrollos tecnológicos y discursivos de la historia reciente. Se analizarán términos afines a la virtualidad, tales como "posibilidad", "potencialidad", "ficción", "irrealidad", "realidad" y "actualidad", con el fin de caracterizar aquello que hoy se denomina "realidad virtual" y "ciberespacio". This paper will present the problem of virtuality from a philosophical perspective to think contemporary forms of (...) understanding of the term related to technological developments in recent history. This perspective pretends to establish a thoughtful critique of the levity with which some concepts related to virtuality are taken. (shrink)

Over the past three decades, the philosophy of biology has emerged from the shadow of the philosophy of physics to become a respectable and thriving philosophical subdiscipline. The authors take a fresh look at the life sciences and the philosophy of biology from a strictly realist and emergentist-naturalist perspective. They outline a unified and science-oriented philosophical framework that enables the clarification of many foundational and philosophical issues in biology. This book will be of interest both to life scientists and philosophers.

We provide a battery of examples of delusions against which theoretical accounts can be tested. Then, we identify neuropsychological anomalies that could produce the unusual experiences that may lead, in turn, to the delusions in our battery. However, we argue against Maher’s view that delusions are false beliefs that arise as normal responses to anomalous experiences. We propose, instead, that a second factor is required to account for the transition from unusual experience to delusional belief. The second factor in the (...) aetiology of delusions can be described superficially as a loss of the ability to reject a candidate for belief on the grounds of its implausibility and its inconsistency with everything else that the patient knows. But we point out some problems that confront any attempt to say more about the nature of this second factor. (shrink)

El texto desarrolla -a modo de ensayo- un recorrido por el cuerpo como lugar, discurso y objeto de control, taxonomía a partir de lo cual se proponen tres operaciones posibles de desarrollar: el estudio de la memoria del cuerpo a partir de sus indicios; la comprensión histórica del ejercicio del cuerpo a partir de sus prolongaciones, y el análisis de las condiciones para el ejercicio del poder en medio de la tensión dominación-libertad. El autor plantea que las tres dimensiones desarrolladas (...) (cuerpo como lugar, como discurso y como poder) no son independientes entre sí, ya que componen un complejo sistema de relaciones que explican y encubren los significados de los vínculos del cuerpo a nivel social. Finalmente, el artículo plantea que el escenario del cuerpo constituye el punto de paso de todas las políticas con independencia de su origen, ya que en él se instala y proyecta la totalidad de la red social, siendo el principal objeto del gobierno y sus decisiones. (shrink)

Martin Heidegger's Contributions to Philosophy reflects his famous philosophical "turning." In this work, Heidegger returns to the question of being from its inception in Being and Time to a new questioning of being as event.

El objetivo del presente artículo es demostrar, desde la visión del eco-etnodesarrollo, la crisis humanitaria que padece el departamento del Chocó, teniendo en cuenta la grave afectación de los diversos grupos étnicos en sus territorios por causa del desplazamiento forzado por el conflicto armado, el riesgo en la extinción de poblaciones indígenas y tribales, las prácticas de recursos extractivos, que han puesto a los territorios en situaciones de disputa, y el narcotráfico, que evidencian la degradación que padece el departamento, ligado (...) a los márgenes de pobreza que enfrenta, aún con la enorme riqueza ambiental y étnica que posee. (shrink)

Gregory N.Carlson and Francis Jeffry Pelletier (eds), The generic book.Chicago and London:The University of Chicago Press, 1995, x+463 pp.£30.25/$37.95 (Paper); £83.95/$5105.00 (Cloth).

This paper is concerned with De Morgan’s explanation of the validity of arguments that involve relational notions. It discusses De Morgan’s expansion of traditional logic aimed at accommodating those inferences, and makes the point that his endeavour is not successful in that the rules that made up his new logic are not sound. Nevertheless, the most important scholarly work on De Morgan’s logic, and contrary to that De Morgan’s mistake is not beyond repair. The rules that determine his new logic (...) are in fact monotonie replacement rules. And provided they are restricted in the correct way, these rules are demonstrably sound. (shrink)

En el presente texto planteo que la llamada ausencia de utopías de nuestro tiempo es una afirmación que necesita ser repensada. La historia de las ideas es el lugar donde esa afirmación se produce y la Historia misma es un campo de batallas entre escrituras que aspiran a detentar el patrimonio de concepciones del mundo como aquellas del progreso o las utopías políticas. Frente a la concepción del progreso, los trabajos de Walter Benjamin y Zygmunt Bauman, han propuesto figuras como (...) la del Trapero o las vidas desperdiciadas como sugerentes cuestionamientos a la dura costra de la universalidad y del conformismo. Esas figuras presentan la posibilidad de abrirnos a nuevas utopías. (shrink)

ResumoNo início do século xviii, Isaac Newton publicou seu principal trabalho sobre óptica, o Opticks. Impregnado por uma perspectiva indutiva, o livro logo se tornou a principal referência para os estudos sobre a luz e as cores, sendo amplamente popularizado pelos seguidores de Newton. Neste artigo, analisamos como dois importantes livros contribuíram para essa popularização e também qual era a imagem de ciência que tencionavam propagar, o Élements de la philosophie de Newton de Voltaire e o Newtonianismo per le dame (...) de Algarotti. Será possível perceber que ambos os autores distorceram o conteúdo do livro de Newton, no intuito de propagar uma imagem idealizada das ideias newtonianas e da própria filosofia natural.In the beginning of 18th century, Newton published his main work about light and colors, the Opticks. Impregnated by an inductive perspective, the book became the major reference for the studies about light and colors, being widely popularized by Newton's followers. In this article, we analyze how two important works contributed to this process of popularization and also what image of science they intended to propagate: Voltaire's Elements of Newton's philosophie and Algarotti's Sir Isaac Newton's philosophy explain'd for the use of the ladies. We will be notice that both authors distorted the content of the Opticks, in order to propagate an idealized image of Newtonian ideas and natural philosophy itself. (shrink)

In this note we reproduce the book reviews that De Morgan wrote on Boole's and Jevons's first logical works. The most notable property of these documents is the mere fact of their existence and the absence of any reference to them in the specialized literature.

What exactly is hope and how does it influence our decisions? In How We Hope, Adrienne Martin presents a novel account of hope, the motivational resources it presupposes, and its function in our practical lives. She contends that hoping for an outcome means treating certain feelings, plans, and imaginings as justified, and that hope thereby involves sophisticated reflective and conceptual capacities. Martin develops this original perspective on hope--what she calls the "incorporation analysis"--in contrast to the two dominant philosophical (...) conceptions of hope: the orthodox definition, where hoping for an outcome is simply desiring it while thinking it possible, and agent-centered views, where hoping for an outcome is setting oneself to pursue it. In exploring how hope influences our decisions, she establishes that it is not always a positive motivational force and can render us complacent. She also examines the relationship between hope and faith, both religious and secular, and identifies a previously unnoted form of hope: normative or interpersonal hope. When we place normative hope in people, we relate to them as responsible agents and aspire for them to overcome challenges arising from situation or character. Demonstrating that hope merits rigorous philosophical investigation, both in its own right and in virtue of what it reveals about the nature of human emotion and motivation, How We Hope offers an original, sustained look at a largely neglected topic in philosophy. (shrink)

A imagem sugestiva "retorno do outro" ajuda a indicar o modo como a alteridade interpela no actual contexto de globalização. Esse "outro", o grande ausente da maior parte da história da filosofia ocidental, aparece com força renovada (ou, pelo menos, resiste aos embates da homo-geneização) frente à lógica económica, política e cultural, que pretende anulá-lo na imposição uniforme de um estilo de vida. O seu "retorno" abre possibilidades em várias perspectivas. Aqui apenas esboçamos o que significou este "retorno do outro" (...) na irrupção do pensamento intersubjectivo, bem como as possibilidades que abre para a relação intercultural. The suggestive image, "turn to the other", gives an indication of how alterity challenges the current context of globalisation- This "other" is the great absent in the greater part of the history of Western philosophy. It appears with renovated strength (or at least resists the pressures of homogenisation) in the face of the economic, political, and cultural logic that seeks to annul it through the uniform imposition of a given lifestyle. Its return opens possibilities of varying kinds. Here we wish only to sketch the meaning of this "turn to the other" in the irruption of the inter-subjective thought and possibilities it opens for intercultural relations. (shrink)

A ‘lottery belief’ is a belief that a particular ticket has lost a large, fair lottery, based on nothing more than the odds against it winning. The lottery paradox brings out a tension between the idea that lottery beliefs are justified and the idea that that one can always justifiably believe the deductive consequences of things that one justifiably believes – what is sometimes called the principle of closure. Many philosophers have treated the lottery paradox as an argument against the (...) second idea – but I make a case here that it is the first idea that should be given up. As I shall show, there are a number of independent arguments for denying that lottery beliefs are justified. (shrink)

Martin Heidegger is one of the most important and influential philosophers of the 20th Century. A major figure in the development of phenomenology, his work also profoundly influenced many of the intellectual movements that followed in his wake, from Sartre's Existentialism to Derrida's deconstructionism. Towards the Definition of Philosophy brings together two seminal lectures that mark a breakthrough moment in Heidegger's thought and introduces the major themes that he would develop in his opus Being and Time.

A landmark discussion between two great thinkers, vital to an understanding of twentieth-century philosophy and intellectual history.

The rise in Study Abroad participation among college students has increased interest among educationalists wondering about the impact of SA on students, particularly when students return home without evidence of deep engagement and understanding of other cultures and people. The purpose of this case study was to locate one potential source of the meanings ascribed to the SA experience, through analysis of multimodal representations on the institutional website of a popular SA program provider. In this study, Kress’ model of multimodal (...) social semiotic communication was employed in the analysis of the ensemble of modes of communication on the website, and their role in the production and dissemination of discourses of SA. Findings indicate that discourses of tourism prevail over discourses of education, and the representations enacted on the institutional website are mirrored in the discursive practices of students. (shrink)

This paper proposes a view of time that takes passage to be the most basic temporal notion, instead of the usual A-theoretic and B-theoretic notions, and explores how we should think of a world that exhibits such a genuine temporal passage. It will be argued that an objective passage of time can only be made sense of from an atemporal point of view and only when it is able to constitute a genuine change of objects across time. This requires that (...) passage can flip one fact into a contrary fact, even though neither side of the temporal passage is privileged over the other. We can make sense of this if the world is inherently perspectival. Such an inherently perspectival world is characterized by fragmentalism, a view that has been introduced by Fine in his ‘Tense and Reality’ (2005). Unlike Fine's tense-theoretic fragmentalism though, the proposed view will be a fragmentalist view based in a primitive notion of passage. (shrink)

Martin Heidegger's Nietzsche's Second Untimely Meditation presents crucial elements for understanding Heidegger's thinking from 1936 to 1940. Heidegger offers a radically different reading of a text that he had read decades earlier, showing how his relationship with Nietzche's has changed, as well as how his understandings of the differences between animals and humans, temporality and history, and the Western philosophical tradition developed. With his new reading, Heidegger delineates three Nietzschean modes of history, which should be understood as grounded in (...) the structure of temporality or historicity and also offers a metaphysical determination of life and the essence of humankind. Ullrich Hasse and Mark Sinclair offer a clear and accessible translation despite the fragmentary and disjointed quality of the original lecture notes that comprise this text. (shrink)

Este artículo tiene como propósito presentar los resultados de la investigación realizada a partir de la sistematización de la experiencia significativa de Ambulua. Su objetivo es reconocer en la espiritualidad de la mujer afrodescendiente aportes significativos que contribuyen a la sanación como construcción de paz en el territorio. La sistematización de la experiencia se realizó a partir de talleres participativos y análisis documental; esta permitió la reconstrucción de «un camino andado» e identificar aprendizajes significativos en la búsqueda de la esencia (...) espiritual ligada a la Tierra Madre, que ayuda aflorar la esencia, fuerza y espiritualidad liberadora en comunidades afrodescendientes, donde las mujeres tienen un papel importante en la transmisión de valores culturales. Posibilita abrir caminos para la construcción del tejido de paz, donde no hay supremacía existe el otro, la otra que es diferente y piensa diferente pero que es posible caminar juntos en la vida. Experiencias y aprendizajes que dialogan con la música, el canto, la danza, manos que con el uso de las plantas ritualizan en la cotidianidad, generando paz y bienestar. (shrink)