The purpose of this work is reviewing some reduction results to deal with systems of nonautonomous ordinary differential equations with two time scales. They could be included among the so-called approximate aggregation methods. The existence of different time scales in a system, together with some long-term features, are used to build up a simpler system governed by a lesser number of state variables. The asymptotic behavior of the latter system is then used to describe the asymptotic behaviour of the former (...) one. The reduction results are stated in two particular but important cases: periodic systems and asymptotically autonomous systems. The reduction results are illustrated with the help of simple spatial SIS epidemic models including either periodic or asymptotically autonomous terms. (shrink)

An overcomplete logic is a logic that ‘ceases to make the difference’: According to such a logic, all inferences hold independently of the nature of the statements involved. A negation-inconsistent logic is a logic having at least one model that satisfies both some statement and its negation. A negation-incomplete logic has at least one model according to which neither some statement nor its negation are satisfied. Paraconsistent logics are negation-inconsistent yet non-overcomplete; paracomplete logics are negation-incomplete yet non-overcomplete. A paranormal logic (...) is simply a logic that is both paraconsistent and paracomplete. -/- Despite being perfectly consistent and complete with respect to classical negation, nearly every normal modal logic, in its ordinary language and interpretation, admits to some latent paranormality: It is paracomplete with respect to a negation defined as an impossibility operator, and paraconsistent with respect to a negation defined as non-necessity. In fact, as it will be shown here, even in languages without a primitive classical negation, normal modal logics can often be alternatively characterized directly by way of their paranormal negations and related operators. So, instead of talking about ‘necessity’, ‘possibility’, and so on, modal logics could be seen just as devices tailored for the study of (modal) negation. This paper shows how and to what extent this alternative characterization of modal logics can be realized. (shrink)

This edited volume explores the different and seminal ways colours matter to philosophy. Each chapter provides an insightful analysis of one or more cases in which colours raise philosophical problems in different areas and periods of philosophy. This historically informed discussion examines both logical and linguistic aspects, covering such areas as the mind, aesthetics and the foundations of mathematics. The international contributors look at traditional epistemological and metaphysical issues on the subjectivity and objectivity of colours. In addition, they also assess (...) phenomenological problems typical of the continental tradition and contemporary problems in the philosophy of mind. The chapters include coverage of such topics as Newton’s and Goethe’s theory of light and colours, how primary qualities are qualitative and colours are primary, explaining colour phenomenology, and colour in cognition, language and philosophy. "This book beautifully prepares the ground for the next steps in our research on and philosophising about colour" Daniel D. Hutto "It is not an overstatement to say that How Colours to Philosophy is a ground breaking publication" Mazviita Chirimuuta "Anyone interested in philosophical issues about color will find it highly stimulating." Martine Nida-Rümelin "The high quality papers included in this anthology succeed admirably in enriching current philosophical thinking about colour” Erik Myin “This is certainly the most complete collection of philosophical essays on colours ever published” André Leclerc “All in all this collections represents a new milestone in the ongoing philosophical debate on colours and colour expressions” Ingolf Max. (shrink)

We say that things happen accidentally when they do indeed happen, but only by chance. In the opposite situation, an essential happening is inescapable, its inevitability being the sine qua non for its very occurrence. This paper will investigate modal logics on a language tailored to talk about essential and accidental statements. Completeness of some among the weakest and the strongest such systems is attained. The weak expressibility of the classical propositional language enriched with the non-normal modal operators of essence (...) and accident is highlighted and illustrated, both with respect to the definability of the more usual modal operators as well as with respect to the characterizability of classes of frames. Several interesting problems and directions are left open for exploration. (shrink)

As a literary genre and practice, philosophical and political epistolography seems to have been alive and well in the fourth-century Roman empire. We have fragments of twenty letters of the late third- and early fourth-centuryc.e. Platonist philosopher Iamblichus of Chalcis to former students and other contemporaries, some of whom appear to have been imperial officeholders ; theEpistle to Himeriusof Sopater the Younger to his brother Himerius on the latter's assumption of an unknown governorship in the East, probably sometime in the (...) 340s or 350s ; the Emperor Julian'sEpistle to Themistius, which was likely written and publishedc.December 361/early 362; and theEpistle to Julianof the Aristotelian philosopher Themistius on proper rule, which seems to have been a response, in part, to Julian'sEpistle to Themistiusand perhaps was written to the emperor when both men likely resided in Constantinople at the same time. These philosophical and political letters are but a few examples from this period. All four authors mentioned above, who are representative of intellectual life in the East during the fourth century, produced epistles which reflect Greek political theory in a Roman imperial context. (shrink)

En esta investigación se analiza el pensamiento de Frantz Fanon, un pensador crítico del sistema colonial -especialmente (Caribe y África)-, se trabajará algunos elementos que se encuentran en el colonialismo, a través de sus obras más importantes como: Piel Negra, máscaras blancas y Los condenados de la tierra. Del mismo modo, se abordará un problema de carácter neurálgico en el planteamiento del autor como lo es el prejuicio del color y la visión de los europeos en relación a la problemática (...) étnica. Según Fanon, hay toda una empresa colonial en búsqueda de esclavizar, subyugar y dominar a los menos favorecidos. (shrink)

Neste artigo, mostramos que a apresentação da constituição da consciência moral moderna, em Hegel, resultante da reformulação dialético-especulativa da autonomia moral kantiana, é essencialmente crítica e se condensa numa "dialética negativa".

Ugar and Malele 1 critique the use of ‘generic’ technologies like artificial intelligence (AI) and machine learning (ML) for mental health diagnoses, particularly in sub-Saharan African countries. They highlight how these AI medical tools often overlook traditional perspectives and local contexts. The article has the merit of working on ethical issues regarding the particularities and risks of using AI and ML for health diagnosis in the Global South, an urgent and neglected topic. According to the authors, the use of these (...) AI technologies leads to overgeneralisation in diagnosing mental disorders, which could be especially problematic in the mental health field because of value-laden judgements intrinsic to the definition of mental health disorders. This argument is theoretically grounded in the hybrid conceptualisation of mental disorders proposed by Wakefield. 2 This author’s perspective incorporates both factual and value components in defining mental disorders, framing them as context-dependent ‘harmful dysfunctions’... (shrink)

A análise literária do Sl 117, a menor unidade do saltério hebraico, revela um conteúdo teológico-espiritual de caráter messiânico de relevância e atualidade para o cristianismo e o judaísmo. O estudo do texto hebraico em sua forma final – sem excluir, contudo, informações de índole diacrônica – apresenta sob a forma típica da poética hebraica elementos que ressaltam as características do louvor a Deus. O salmo propõe uma relação espiritual “carinhosa” no louvor para com o Deus de Israel; fornece explicitamente (...) as motivações deste elogio que se fundamenta na anamnese da misericórdia divina para com o homem; assim como na recordação da fidelidade à aliança de Javé com o Antigo Israel. (shrink)

What is the fundamental insight behind truth-functionality ? When is a logic interpretable by way of a truth-functional semantics? To address such questions in a satisfactory way, a formal definition of truth-functionality from the point of view of abstract logics is clearly called for. As a matter of fact, such a definition has been available at least since the 70s, though to this day it still remains not very widely well-known. A clear distinction can be drawn between logics characterizable through: (...) (1) genuinely finite-valued truth-tabular semantics; (2) no finite-valued but only an infinite-valued truthtabular semantics; (3) no truth-tabular semantics at all. Any of those logics, however, can in principle be characterized through non-truth-functional valuation semantics, at least as soon as their associated consequence relations respect the usual tarskian postulates. So, paradoxical as that might seem at first, it turns out that truth-functional logics may be adequately characterized by non-truth-functional semantics . Now, what feature of a given logic would guarantee it to dwell in class (1) or in class (2), irrespective of its circumstantial semantic characterization? (shrink)

One of the reasons colours, or better the conceptual organisation of the colour system, could be relevant to the philosophy of logic is that they necessitate some mutilation of truth tables by restricting truth functionality. This paper argues that the so-called ‘Colour Exclusion Problem’, the first great challenge for Wittgenstein’s Tractatus, is a legitimate philosophical motivation for a systematic mutilation of truth tables. It shows how one can express, through these mutilations, some intensional logical relations usually expressed by the Aristotelian (...) Square of Oppositions, as contrariety and subcontrariety. (shrink)

Este artigo examina alguns aspectos do pensamento de Espinosa que tomam possível o estabelecimento de uma relação de complementaridade entre as noções de adequação e correspondência em sua concepção da verdade, procurando opor esta relação àquela existente entre as noções de evidência e verdade na concepção cartesiana.

En un intento de superación del idealismo y del realismo el pensamiento de Ortega sitúa su cimiento en un terreno que se quiere más radical: la vida. Es menester entonces una crítica de los viejos conceptos que no dan cuenta de esa realidad, una criba que deje paso a una nueva forma de pensamiento capaz de explicarla. Ahora bien, habida cuenta de que los conceptos filosóficos son creaciones objetivas y esa nueva realidad es inevitablemente actual, ejecutiva, ¿es posible la empresa (...) de ese "cartesianismo de la vida"? El siguiente diálogo pretende ser una aproximación a los problemas y novedades del enfoque orteguiano, por lo que es, entonces, un acercamiento al concepto ejecutivo del ser, pero también a una nueva epistemología, que dando por sentada la existencia del conocimiento se pregunta: ¿por qué necesitamos conocer? (shrink)

The relational and intersubjective model of subjectivity does not deny the subject, neither does the self-narrating exercise of synthesis of the heterogeneous evade the identity question. It is the role of language to found the meaning of ipseity, to articulate the needs and desires, to organize the dispersion experienced, and to tie action to moral principles of social responsibility. Reflection and self-reflection structure the human experiences of recognition. The correlation between the idea of freedom of individual choice and the idea (...) of collective responsibility is the opportunity for the affirmation of each one and for the establishment of reciprocity between everyone. Within this context, the dialogue between Ricœur, Honneth and Sen proves to be very inspiring.  . (shrink)

La relecture patiente du fameux texte de Freud sur le « fort-da » permet de souligner -en deçà de sa reprise lacanienne à la lumière d’une théorie de la naissance au symbolique langagier-, le motif de la disparition de l’autre aimé rapporté à la question de l’invisibilité. la promotion d’un rapport ludique à l’absent se fonde originairement, en effet, sur la tolérance à l’endroit de son disparaître inaugural. Avant de tolérer que l’autre ne soit pas là, il nous revient toujours (...) de supporter qu’il s’éloigne, c’est-à-dire qu’il se rende invisible, fût-ce pour un temps. Mais, à quel titre devons-nous penser avec Freud le disparaître de l’autre désiré comme une performance culturelle? Faut-il à la manière dont la religion juive ordonne l’adoration d’un Autre invisible, nous soumettre à l’expérience, non plus seulement discontinue de la présence de l’autre aimé, mais à l’éprecue de sa définitive soustraction à l’ordre de l’apparaître ? (shrink)

Desde el inicio de la Modernidad, la narrativa ha evolucionado tanto como lo ha hecho el pensamiento, apreciándose de un modo sustancial en los giros del gusto y en la construcción de personajes. Bajo esta premisa, en el presente artículo se analizan las diferencias entre los prototipos ejemplares y no ejemplares de la ficción, poniendo el foco en el medio audiovisual. Partiendo de la teoría de la imitación y de la imitación de prototipos establecida por Javier Gomá, se revisan algunos (...) arquetipos de personajes amorales que, compartiendo su carácter no ejemplar, despiertan una fascinación estética ajena y contraria a la que provocan en el ámbito de la moral. Con el objetivo de dar una explicación a este fenómeno, se acude a la separación de juicios establecida por Friedrich Schiller y por otros teóricos que siguen su estela, como Adam Kotsko, y se señalan las posibles contradicciones implícitas en la faceta amoral de los personajes, cuando su carácter no ejemplar supone una referencia para sectores sociales concretos, convirtiéndose la ficción en el punto de partida del proceso imitativo. (shrink)

The concept of the "linear model of innovation" was introduced by authors belonging to the field of innovation studies in the middle of the 1980s. According to the model, there is a simple sequence of steps going from basic science to innovations - an innovation being defined as an invention that is profitable. In innovation studies, the LMI is held to be assumed in Science the endless frontier , the influential report prepared by Vannevar Bush in 1945. In this paper, (...) it is argued that: the LMI was introduced with critical purposes, as part of the questioning of the conception of science and the proposals for science policies put forward in Sef; at a first level of analysis, the LMI appears as a straw man, defended neither in Sef, nor anywhere else; the LMI is a weapon against the importance attributed to basic science in Sef, and its defense of the financing of basic research by the state; the LMI is a component of the process of commodification of science promoted by neoliberalism. The last section of the paper presents a qualified defense of basic science and basic research. (shrink)

O objetivo deste artigo é mostrar que o papel e o valor da ciência, em Bacon e em Espinosa, diferem segundo o papel e o valor que cada um deles atribui à metafísica como ramo do conhecimento. Em Bacon, o valor da ciência é grande na medida mesma em que o valor da metafísica é nenhum. Em Espinosa, esses valores se invertem. Mas enquanto a teoria do conhecimento em Bacon obedece a pressupostos teológicos, e portanto, em última instância, à fé, (...) em Espinosa o valor da metafísica e da ciência nasce das próprias concepções metafísicas, fruto de um trabalho de conhecimento que obedece, não à fé, mas ao próprio intelecto. (shrink)

Resenha do livro Espinosa e Vermeer: imanência na filosofia e na pintura, de Sara Hornäk, publicado no Brasil, em 2010, pela editora Paulus.

Resenha do livro Le devenir actif chez Spinoza, de Pascal Sévérac, publicado na França em 2005.

O presente texto é uma investigação bibliográfica sobre a obra de Sartre, O Ser e o Nada. Delimita-se o foco em apresentar o projeto sartreano de pensar a condição humana na sua existência radical, contingente e engajada no mundo. A atenção recai sobre o problema da liberdade que não se caracteriza de forma abstrata, mas que se concretiza na ação dentro de situação existencial e histórica. O objetivo é descrever a possibilidade de se pensar, a partir da compreensão sobre a (...) condição humana, o esboço de uma ética para educação – entendida como a liberdade de criar-se a si mesmo, de maneira autêntica, enquanto ser no mundo engajado com a própria situação existencial e histórica. This is a research based on literature on work by Sartre, Being and Nothingness. Our main objective is to present the sartrean project of thinking the human condition as radically contingent and engaged existences in the world. There is attention to the problem of freedom that is not characterized in the abstract, but which is actualized in action within the historical and existential situation. The objective is to describe the possibility of considering, from the perspective of the human condition, the sketch of an ethics from education – understood as the freedom of authentically creating oneself, as a being engaged in the world within his or her own historical and existential situation. (shrink)

Currently, pedagogy prioritizes the way students construct and assimilate knowledge, employing innovative strategies and methodologies such as the STEAM approach. Despite being internationally recognized and promoting motivation and creativity, this teaching model is still incipient in Colombia. Existing studies agree on the need to train teachers to acquire and strengthen their competencies before implementing this approach effectively and taking advantage of its benefits. Therefore, the aim is to analyze the barriers and opportunities related to the implementation of this approach in (...) the following educational institutions: Santo Tomas De Aquino, Nueva Familia, Simón Bolívar and San Luis, located in Duitama, Boyacá - Colombia. The research is guided by a qualitative approach, is descriptive in scope and follows an action research design. The results and conclusions of the study reveal resistance on the part of some educators towards innovation and the adoption of new educational strategies. In addition, there is a lack of investment and interest on the part of schools in developing training programs that promote knowledge and the strengthening of new competencies for the effective adoption of the STEAM approach. (shrink)

Unlike with randomized controlled trials (RCTs) in clinical research, little has been said about the ethical principles that should regulate the use of RCTs in experimental development economics. One well-known principle in clinical research ethics is the principle of clinical equipoise. Some recent commentators suggest that an analogue of clinical equipoise should play a role in experimental development economics. In this article, I first highlight some difficulties with importing the concept to experimental development economics. I then argue that MacKay’s (2018, (...) 2020) notion of policy equipoise avoids these difficulties and has a role to play in experimental development economics. (shrink)

Fundado na Ásia, no século III, por Mani, o maniqueísmo se constituía, do ponto de vista doutrinal, numa gnose que misturava principios das seitas/religióes orientais, especialmente do Zoroastrismo e do Budismo, da Filosofia Grego-Romana e do Cristianismo. Sua tese fundamental consistía na afirma9áo de dois principios ontológicos do mundo: o Bem ou a Luz, representado no sol, e o Mal ou as Trevas, personificado na matéria. Desse dualismo ontológico nascia uma cosmologia/soteriologia que apresentava a história da salva9áo do mundo em (...) trés tempos: o primeiro, inicial, engloba as origens cósmicas dos dois principios e seus primeiros afrontamentos. O segundo, médio, é o tempo da mistura entre os dois Reinos, que se caracteriza peía queda de uma parte da Luz na matéria, bem como, é o tempo da criagáo dos seres no universo. Enfim, o terceiro, final, marca a liberta9áo de todas as partículas da Luz imbricadas na matéria, com o retorno da Luz ao reino do Pai e a queda definitiva da matéria no inferno. (shrink)

Tanto nas leis como nas propostas educacionais ou nos discursos das organizações sociais, a relação do homem com o ambiente é tratada de maneira fragmentada – o homem está fora do meio, cabendo-lhe o papel de fiscalizador, predador ou controlador. Tal percepção revelaria hoje um “efeito colateral” que vem sendo descrito como uma “crise ambiental” ou, como queremos, uma “crise do letramento massivo”. Para atestá-lo, empreendemos uma análise exploratória fundamentada na Linguística Sociocognitiva. Argumentamos que os processos orais se organizam em (...) torno da “pouca distância” que o “conhecedor” tem do “conhecido”, enquanto que, com a escrita, a linguagem interpõe “entre o conhecedor e o conhecido um objeto que é o texto escrito”. O fenômeno explicaria a ampla reanálise de uma cosmogonia em que o homem ocidental se via no “centro do mundo” e passou a compreender-se como um ser que distingue claramente o eu e a natureza (Descartes), um ser “fora do mundo”, que o lê como um “livro da Natureza”, como dirá Galileu. Para mudar tal percepção, como quer a educação ambiental contemporânea, será necessário “adquirir um sentimento vivo da unidade do saber humano”, o que significará transformar a educação formal. (shrink)

In many real-life applications of logic it is useful to interpret a particular sentence as true together with its negation. If we are talking about classical logic, this situation would force all other sentences to be equally interpreted as true. Paraconsistent logics are exactly those logics that escape this explosive effect of the presence of inconsistencies and allow for sensible reasoning still to take effect. To provide reasonably intuitive semantics for paraconsistent logics has traditionally proven to be a challenge. Possible-translations (...) semantics can meet that challenge by allowing for each interpretation to be composed of multiple scenarios. Using that idea, a logic with a complex semantic behavior can be understood as an appropriate combination of ingredient logics with simpler semantic behaviors into which the original logic is given a collection of translations preserving its soundness. Completeness is then achieved through the judicious choice of the admissible translating mappings. The present note provides interpretation by way of possible-translations semantics for a group of fundamental paraconsistent logics extending the positive fragment of classical propositional logic. The logics PI, Cmin, mbC, bC, mCi and Ci, among others, are all initially presented through their non-truth-functional bivaluation semantics and sequent versions and then split by way of possible-translations semantics based on 3-valued ingredients. (shrink)

Guillermo de Ockham vivió profundamente la espiritualidad franciscana: humildad, pobreza y convivencia social . Al mismo tiempo, Ockham defendió la idea de que la humildad intelectual no impide construir una racionalidad que ayude a transformar religiosamente el mundo. El autor de este artículo defiende la unidad del pensamiento filosófico de Ockham, incluido el periodo posterior a los sucesos de Aviñón.William of Ockham was a firm bilever in Franciscan sprituality: humility, poverty and social harmony. At the same time, Ockham defended the (...) idea that intellectual humility did not impede the construction of a rationality that would help in the religious transformation of society. The author of this paper defends the unity of Ockham's philosophical thoughts, long after the events in Avignon. (shrink)

Rawls estabelece, ao longo de Uma Teoria da Justiça, uma série de considerações sobre a lei e a desobediência civil e, em O Liberalismo Político, realiza ponderações acerca da legitimidade. Tendo isso em mente, o que se objetiva é estabelecer algumas considerações acerca da temática, sem, contudo, afirmar que Rawls oportuniza uma teoria do direito em seu sentido stricto. Assim, pretende-se apenas ressaltar as importantes considerações que o autor desenvolveu, tendo em conta a importância de sua teoria da justiça.