The practice of parkour in urban spaces by young people, especially those who call themselves traceurs, illustrates how identities are formed in an ephemeral way by reinterpreting spaces in the city – briefly and without leaving a trace. However, in a sort of paradox, these interventions are registered in the socio-digital spectrum, tokenistically anchoring and incorporating them into conversations and social interactions. This work aims to explain the practice of the sport called parkour as a socio-semiotic phenomenon. We have used (...) some zones of Mexico City as a specific case for our approach. The foregoing leads to the conclusion that the meaning of parkour goes beyond its recreational role and places it as a relevant piece of identity for excluded urban social groups – even though these practices have been appropriated by marketing strategies. Our approach will use a cultural semiotics perspective, as well as direct observations and interviews as research techniques. (shrink)

This article delineates the notion of conjectural artworks—that is, ways of thinking and explaining formal and relational phenomena by visual means—and presents an appraisal and review of the use of such visual ways in the work of Chilean biologists and philosophers Humberto Maturana and Francisco Varela. Particularly, the article focuses on their recurrent uses of Cellular Automaton, that is, discrete, locally interacting, rule-based mathematical models, as conjectural artworks for understanding the concepts of autopoiesis, structural coupling, cognition and enaction: (i.e. (...) Protobio and Bittorio). Additionally, the article proposes a new model of conjectural artwork based on an extension of cellular automaton: random Boolean networks namely, binary systems with variable local connections. Such model, as it is argued, is useful to connect the theoretical frameworks by Maturana and Varela, especially structural coupling and enaction, with other relevant fields such as biosemiotics’ Umwelt-research and cognitive landscapes in neurodynamics, and to advance and explore the concepts of structurally coupled categorization and generalization. (shrink)

Pedro Alvares Cabral's ships left Portugal on 9 March 1500 en route for the territory that he first named Terra de Vera Cruz and that later came to be known as Brazil. On the 22 March they called at the island of São Nicolau [Caminha, 1500], one of the northernmost islands of the Cape Verde group; this was about forty years after the discovery of the archipelago in 1460-62 [Albuquerque, 1991]. It is known that Vasco da Gama had stopped at (...) the island of Santiago in 1498 on his voyage to India, and also in 1499 on the return journey. Straight after the discovery of Brazil Cabral sailed for India and on the way back also dropped anchor at Santiago. Indeed, our archipelago, which is situated off Cape Verde in Senegal (the place from which it appears to take its name), was to become an important stopover point for maritime traffic between Europe, Asia and the Americas in the fifteenth and sixteenth centuries, both to allow crews to rest and to take on water, wood and some food supplies. It also became important as a holding point for slaves (a large number of whom came from around thirty Guinean ethnic groups and subgroups). They were dispatched from Santiago, known then as Cape Verde island, to territories such as Brazil from the early sixteenth century onwards, since these territories, which had only recently been discovered and were little known, needed people to work and populate them. (shrink)

Accidie, depression, and dejection seem to be psychological phenomena that are best characterized as cases in which an agent has no motivation to pursue what he or she judges to be good or valuable. The phenomena thus seem to present a challenge to any view that draws a close connection between motivation and evaluation. ‘Accidie, Evaluation, and Motivation’ aims to show that the phenomena are actually best explained by a theory that postulates a conceptual connection between motivation and evaluation.

The COVID‐ 19 pandemic is a critical test for the already overburdened and mostly underfunded public healthcare systems of Latin America. In a region that suffers from severe inequalities, public healthcare systems are the only source of medical care for a large sector of the population who work in the informal economy or are unemployed. State‐run hospitals and clinics are already overstressed by continuous demand for treatment of vector‐borne diseases and community‐acquired infections as well as high rates of non‐communicable diseases. (...) Ideological misconceptions and denial among Latin America’s political leaders prevented timely preparations for the pandemic and added to chronic governance problems. As ethical expertise in Latin America focuses on research ethics, few hospitals in the region have functioning clinical ethics committees or clinical ethics policy, forcing healthcare personnel to make excruciating treatment decisions in an environment dominated by material scarcity and public distrust. This essay examines the emergence of COVID‐19 in Latin America and the serious challenge that it poses for Latin America's public healthcare systems. (shrink)

The prehistory of science and technology studies -- The Kuhnian revolution -- Questioning functionalism in the sociology of science -- Stratification and discrimination -- The strong programme and the sociology of knowledge -- The social construction of scientific and technical realities -- Feminist epistemologies of science -- Actor-network theory -- Two questions concerning technology -- Studying laboratories -- Controversies -- Standardization and objectivity -- Rhetoric and discourse -- The unnaturalness of science and technology -- The public understanding of science -- (...) Expertise and public participation -- Political economies of knowledge. (shrink)

Resumen En este artículo analizaremos, a través de una serie de actividades diseñadas para implementar en el aula, el modo en el que un grupo de jóvenes gallegos co-construyen el conocimiento metalingüístico y metapragmático acerca de las diferentes variedades locales del español y gallego. La exposición de su trayectoria biográfica permite que afloren diversos saberes y conocimientos metalingüísticos que los estudiantes han ido adquiriendo a lo largo de su escolarización y, además, surgen diversas categorizaciones sobre lenguas y variedades que ponen (...) de manifiesto sus ideologías lingüísticas, pp. 157–174). A través del análisis de las prácticas metalingüísticas y metapragmáticas comprobaremos cómo se reproducen las ideologías lingüísticas de estos jóvenes; por una parte, las ideologías de la institución académica y escolar; y por otra, las ideologías lingüísticas de los jóvenes presentes en el aula, en donde etiquetan, clasifican y establecen jerarquizaciones y valoraciones de su repertorio comunicativo. Finalmente, se comprueba cómo las diferentes variedades del español y del gallego actúan como índices de identidad social diferente de la reconocida en el ámbito institucional y académico, con distintos valores en el mercado lingüístico. (shrink)

'We desire all and only those things we conceive to be good; we avoid what we conceive to be bad.' This slogan was once the standard view of the relationship between desire or motivation and rational evaluation. Many critics have rejected this scholastic formula as either trivial or wrong. It appears to be trivial if we just define the good as 'what we want', and wrong if we consider apparent conflicts between what we seem to want and what we seem (...) to think is good. In Appearances of the Good, Sergio Tenenbaum argues that the old slogan is both significant and right, even in cases of apparent conflict between our desires and our evaluative judgements. Maintaining that the good is the formal end of practical inquiry in much the same way as truth is the formal end of theoretical inquiry, he provides a fully unified account of motivation and evaluation. (shrink)

An effective method to increase the number of potential cadaveric organ donors is to make people donors by default with the option to opt out. This non-coercive public policy tool to influence people’s choices is often justified on the basis of the as-judged-by-themselves principle: people are nudged into choosing what they themselves truly want. We review three often hypothesized reasons for why defaults work and argue that the as-judged-by-themselves principle may hold only in two of these cases. We specify further (...) conditions for when the principle can hold in these cases and show that whether those conditions are met is often unclear. We recommend ways to expand nationwide surveys to identify the actual reasons for why defaults work and discuss mandated choice policy as a viable solution to many arising conundrums. (shrink)

How can science be brought to connect with experience? This book addresses two of the most challenging problems facing contemporary neurobiology and cognitive science. Firstly, understanding how we unconsciously execute habitual actions as a result of neurological and cognitive processes that are not formal actions of conscious judgment but part of a habitual nexus of systematic self-organization. Secondly, attempting to create an ethics adequate to our present awareness that there is no such thing as a transcendental self, a stable subject (...) or soul. The author combines researches in cognitive science and phenomenology with two representatives of what he calls the 'wisdom traditions': Confucianism and Buddhist epistemology. (shrink)

A implementação de tecnologias móveis de informação e comunicação no suporte à Saúde Mental tem atraído a atenção das autoridades. Com a ascensão das Inteligências Artificiais, esse movimento pode ser impulsionado de maneira exponencial. Nesse cenário, esta revisão tem como objetivos verificar a aplicabilidade das Inteligências Artificiais (IAs) na Saúde Mental e analisar os aspectos que favorecem a relação entre IAs e usuários. Para tanto, realizou-se uma revisão sistemática nas bases de dados PubMed e Biblioteca Virtual em Saúde, no período (...) de 25 de maio a 23 de junho de 2023. Selecionamos os 100 primeiros artigos mais relevantes com as palavras-chave: “Inteligência Artificial”, “Saúde Mental”, “Chatbots”, “Psicoterapia”, “Psicologia” e suas equivalentes em inglês. Os critérios de inclusão foram: acesso aberto, publicação a partir de 2018, em português ou inglês e menção à atuação de IAs no âmbito da Saúde Mental. Para reduzir o risco de viés, excluímos os estudos que não mensuraram o impacto das intervenções por meio de métodos experimentais ou quase-experimentais. Para a síntese dos dados, delimitaram-se alguns pontos específicos de análise, como “Resultado da intervenção”, “Aspectos que favorecem a relação”, entre outros. Atenderam aos critérios de inclusão 24 estudos, dos quais 17 apresentaram resultados positivos em suas intervenções. O uso de IAs na Saúde Mental possui grande potencial de expansão e os resultados obtidos neste trabalho podem guiar a implementação dessas práticas e futuras pesquisas na área. (shrink)

Rational Powers in Action presents a conception of instrumental rationality as governing actions that are extended in time with indeterminate ends. Tenenbaum argues that previous philosophical theories in this area, in focusing on momentary snapshots of the mind of idealized agents, miss central aspects of human rationality.

Recent research on algebraic models of _quasi-Nelson logic_ has brought new attention to a number of classes of algebras which result from enriching (subreducts of) Heyting algebras with a special modal operator, known in the literature as a _nucleus_. Among these various algebraic structures, for which we employ the umbrella term _intuitionistic modal algebras_, some have been studied since at least the 1970s, usually within the framework of topology and sheaf theory. Others may seem more exotic, for their primitive operations (...) arise from algebraic terms of the intuitionistic modal language which have not been previously considered. We shall for instance investigate the variety of _weak implicative semilattices_, whose members are (non-necessarily distributive) meet semilattices endowed with a nucleus and an implication operation which is not a relative pseudo-complement but satisfies the postulates of Celani and Jansana’s strict implication. For each of these new classes of algebras we establish a representation and a topological duality which generalize the known ones for Heyting algebras enriched with a nucleus. (shrink)

This ambitious work aims to shed new light on the relations between Husserlian phenomenology and the present-day efforts toward a scientific theory of cognition—with its complex structure of disciplines, levels of explanation, and ...

In this paper we advance a new solution to Quinn’s puzzle of the self-torturer. The solution falls directly out of an application of the principle of instrumental reasoning to what we call “vague projects”, i.e., projects whose completion does not occur at any particular or definite point or moment. The resulting treatment of the puzzle extends our understanding of instrumental rationality to projects and ends that cannot be accommodated by orthodox theories of rational choice.

Two Lagrangians L and L′ are equivalent if the equations of motion derived from them have the same set of solutions. In that case, a matrix Λ may be defined which has the property that the trace of any analytic function of Λ is a constant of the motion. We extend this trace theorem to the case of classical field theory and discuss some of the implications for quantum theory and for procedures for finding equivalent Lagrangians.

Though it is held that some models in science have explanatory value, there is no conclusive agreement on what provides them with this value. One common view is that models have explanatory value vis-à-vis some target systems because they are developed using an abstraction process. Though I think this is correct, I believe it is not the whole picture. In this paper, I argue that, in addition to the well-known process of abstraction understood as an omission of features or information, (...) there is also a family of abstraction processes that involve aggregation of features or information and that these processes play an important role in endowing the models they are used to build with explanatory value. After offering a taxonomy of abstraction processes involving aggregation, I show by considering in detail several models drawn from different sciences that the abstraction processes involving aggregation that are used to build these models are responsible for their having explanatory value. (shrink)

Unresponsive wakefulness syndrome (UWS, previously known as vegetative state) occurs after patients survive a severe brain injury. Patients suffering from UWS have lost awareness of themselves and of the external environment and do not retain any trace of their subjective experience. Current data demonstrate that neuronal functions subtending consciousness are not completely reset in UWS; however, they are reduced below the threshold required to experience consciousness. The critical factor that determines whether patients will recover consciousness is the distance of their (...) neuronal functions from this threshold level. Recovery of consciousness occurs through functional and/or structural changes in the brain, i.e., through neuronal plasticity. Although some of these changes may occur spontaneously, a growing body of evidence indicates that rehabilitative interventions can improve functional outcome by promoting adaptive functional and structural plasticity in the brain, especially if a comprehensive neurophysiological theory of consciousness is followed. In this review we will focus on the pathophysiological mechanisms involved in UWS and on the plastic changes operating on the recovery of consciousness. (shrink)

Some major leftist thinkers, including Alain Badiou, Slavoj Žižek and Terry Eagleton, have lately offered readings that claim the relevance of alternative interpretations of the Christian tradition in the face both of the conservative turn in the Catholic Church and of the contemporary secular oblivion of anything that has to do with religion. Furthermore, post-colonial studies have tended to blame the West en bloc for the disasters of past and present colonization, and have attacked the western endeavour to extend universal (...) truths as an ethnocentric device to facilitate and justify exploitation. In Holy Terror, Terry Eagleton both condemns western politics and questions its appeal to universals; but he also hears in this tradition a demand for a relationship with the other which offers an alternative to that established by current politics and capitalist exploitation. The other is the excluded, the oppressed, the exploited; the true material, rather than ideal, universal produced by global capitalist exploitation. As a consequence, anything that happens in any part of the planet belongs in our world and indicts us, though we tend to build barriers around an ideally safe and stable identity that ignores part of its own reality and that is therefore haunted by it. Texts like the Bacchae or the New Testament open the gates of the city and of the heart to the excluded. Terrorists — saints for their own communities and satanic for the rest — offer an example of the other that is impossible to comprehend within our conventional ways of life. Nevertheless, only if we hear in their violence a demand for justice can an exit be found from the vicious circle of violence and revenge. (shrink)

Some major leftist thinkers, including Alain Badiou, Slavoj Žižek and Terry Eagleton, have lately offered readings that claim the relevance of alternative interpretations of the Christian tradition in the face both of the conservative turn in the Catholic Church and of the contemporary secular oblivion of anything that has to do with religion. Furthermore, post-colonial studies have tended to blame the West en bloc for the disasters of past and present colonization, and have attacked the western endeavour to extend universal (...) truths as an ethnocentric device to facilitate and justify exploitation. In Holy Terror, Terry Eagleton both condemns western politics and questions its appeal to universals; but he also hears in this tradition a demand for a relationship with the other which offers an alternative to that established by current politics and capitalist exploitation. The other is the excluded, the oppressed, the exploited; the true material, rather than ideal, universal produced by global capitalist exploitation. As a consequence, anything that happens in any part of the planet belongs in our world and indicts us, though we tend to build barriers around an ideally safe and stable identity that ignores part of its own reality and that is therefore haunted by it. Texts like the Bacchae or the New Testament open the gates of the city and of the heart to the excluded. Terrorists — saints for their own communities and satanic for the rest — offer an example of the other that is impossible to comprehend within our conventional ways of life. Nevertheless, only if we hear in their violence a demand for justice can an exit be found from the vicious circle of violence and revenge. (shrink)

I discuss Aristotle’s opening argument against Platonic Forms in _Metaphysics_ A.9, ‘the Razor’, which criticizes the introduction of Forms on the basis of an analogy with a hypothetical case of counting things. I argue for a new interpretation of this argument, and show that it involves two interesting objections against the introduction of Forms as formal causes: one concerns the completeness and the other the adequacy of such an explanatory project.

Definiciones de epistemología hay muchas, al igual que clases y estilos. Sin embargo, más allá de esta diversidad, es necesario contar con una definición básica que guíe nuestra comprensión del tema. Dos serán las preguntas que nos ayuden a ello en este artículo: a) ¿qué es la epistemología? y b) ¿para qué le sirve al científico?

In the present paper we study systematically several consequence relations on the usual language of propositional intuitionistic logic that can be defined semantically by using Kripke frames and the same defining truth conditions for the connectives as in intuitionistic logic but without imposing some of the conditions on the Kripke frames that are required in the intuitionistic case. The logics so obtained are called subintuitionistic logics in the literature. We depart from the perspective of considering a logic just as a (...) set of theorems and also depart from the perspective taken by Restall in that we consider standard Kripke models instead of models with a base point. We study the relations between subintuitionistic logics and modal logics given by the translation considered by Došen. Moreover, we classify the logics obtained according to the hierarchy considered inAlgebraic Logic. (shrink)

This paper focuses on the framework for the compositional relations of properties in the sciences, or "realization relations", offered by Ken Aizawa and Carl Gillett (A&G) in a series of papers, and in particular on the analysis of "multiple realizations" they build upon it. I argue that A&G's analysis of multiple realization requires an account of levels and I try to show, then, that the A&G framework is not successful under any of the extant accounts of levels. There is consequently (...) a real concern tha thte A&G framework for realization may not be viable. (shrink)

The present paper introduces and studies the variety WH of weakly Heyting algebras. It corresponds to the strict implication fragment of the normal modal logic K which is also known as the subintuitionistic local consequence of the class of all Kripke models. The tools developed in the paper can be applied to the study of the subvarieties of WH; among them are the varieties determined by the strict implication fragments of normal modal logics as well as varieties that do not (...) arise in this way as the variety of Basic algebras or the variety of Heyting algebras. Apart from WH itself the paper studies the subvarieties of WH that naturally correspond to subintuitionistic logics, namely the variety of R-weakly Heyting algebras, the variety of T-weakly Heyting algebras and the varieties of Basic algebras and subresiduated lattices. (shrink)