We examine the most famous controversy between economists as a means of shedding fresh light on the current debate about economic methodology. By focusing on the controversy as the primary unit of analysis, we show how methodological considerations are but one of a whole set of stratagems strategically employed by each opponent. We argue that each opponent's preference for a particular kind of stratagems expresses his own specific scientific style (within the general scientific and cultural style of an age). We (...) also describe a dynamic dimension of the controversy, independent of the participants' intentions. Such a dimension is analysed in a "cycle" of the controversy, which begins with a well-defined issue and expands to additional topics, without reaching a "solution" to the initial issue. The definition and re-definition of the issue(s) at stake and of the difference between both participants is an essential and recurrent feature of such cycles; the conclusion of a cycle does not imply a real "closure" of the controversy, but only that each opponent has reached a satisfying degree of self-clarification. The controversy, thus, does not yield persuasion -- its ostensible aim. Rather, its "benefit" seems to lie in an unintended result -- clarification and deepening of contrasting approaches to the discipline -- due to its peculiar dynamics. In so far as the history of a discipline requires a reconstruction of such contrasts, it is indispensable for it to take into account the controversies where they emerge, and to view both the positive doctrines and the methodological posture of the contenders as parts of a wider framework, that is a scientific style. (shrink)

In this paper, I reply to Ruth Chang’s ‘What is so Hard about Hard Choices’.

Analogue Gravity Phenomenology is a collection of contributions that cover a vast range of areas in physics, ranging from surface wave propagation in fluids to nonlinear optics. The underlying common aspect of all these topics, and hence the main focus and perspective from which they are explained here, is the attempt to develop analogue models for gravitational systems. The original and main motivation of the field is the verification and study of Hawking radiation from a horizon: the enabling feature is (...) the possibility to generate horizons in the laboratory with a wide range of physical systems that involve a flow of one kind or another. The years around 2010 and onwards witnessed a sudden surge of experimental activity in this expanding field of research. However, building an expertise in analogue gravity requires the researcher to be equipped with a rather broad range of knowledge and interests. The aim of this book is to bring the reader up to date with the latest developments and provide the basic background required in order to appreciate the goals, difficulties and success stories in the field of analogue gravity. Each chapter of the book treats a different topic explained in detail by the major experts for each specific discipline. The first chapters give an overview of black hole spacetimes and Hawking radiation before moving on to describe the large variety of analogue spacetimes that have been proposed and are currently under investigation. This introductory part is then followed by an in-depth description of what are currently the three most promising analogue spacetime settings, namely surface waves in flowing fluids, acoustic oscillations in Bose-Einstein condensates and electromagnetic waves in nonlinear optics. Both theory and experimental endeavours are explained in detail. The final chapters refer to other aspects of analogue gravity beyond the study of Hawking radiation, such as Lorentz invariance violations and Brownian motion in curved spacetimes, before concluding with a return to the origins of the field and a description of the available observational evidence for horizons in astrophysical black holes. (shrink)

In this research, we evaluate the response of Brazilian consumers to corporate social responsibility (CSR) initiatives accompanied by a price increase. We demonstrate that the extent to which Brazilian consumers perceive a company to be socially responsible (i.e., their CSR perceptions) is related to both the basic transactional outcome of purchase intentions as well as two relational outcomes: the likelihood to switch to a competitor and to complain about the CSR-based price increase. More interestingly, we find that these relationships are (...) jointly mediated by the consumers’ perceptions of price fairness and feelings of personal satisfaction. Perhaps most interesting, we find that these mediating effects vary with consumer purchasing power; the mediating effect of price fairness on purchase intention is stronger for lower income than for higher income consumers, whereas the mediating effects of personal satisfaction on switching and complaining intentions are stronger for higher income than for lower income consumers. (shrink)

Background: Chronic Pain (CP) has serious medical and social consequences, and leads to economic burden that threatens the sustainability of healthcare services. Thus, optimized management of pain tools to support CP patients in adjusting to their condition and improving quality of life is timely. Although Acceptance and Commitment Therapy (ACT) is considered an evidence-based psychological approach for CP, evidence for the efficacy of online-delivered ACT for CP is still scarce. At the same time, studies suggest that self-compassion mediates the change (...) in disability and psychopathological symptoms in ACT interventions for CP, although self-compassion is not a specific target in ACT. Thus, an explicit focus on self-compassion might increase the efficacy of ACT interventions for CP, although this hypothesis has not been tested. This study aims to develop an eHealth ACT and compassion-based self-management intervention for CP, the iACTwithPain, and to compare its efficacy in improving health outcomes to a similar ACT-only intervention and a waiting list group. Methods: The eHealth platform that will host the interventions will be developed using a flat design identity and will be interactive. The iACTwithPain intervention will comprise 8 weekly self-management sessions, and will be developed taking into consideration the psychological flexibility model applied to CP, with the addition of explicit compassion-based components. To analyse whether the iACTwithPain intervention will present superiority in improving CP’s impact and related health markers over the two other conditions, this study will follow a RCT design with three arms. CP patients will be recruited through direct contact with patient associations and healthcare services and a national press release in Portugal. Outcome measurement will be conducted at baseline, post-intervention and at 3- and 6-months follow-ups. The interventions’ acceptability will also be assessed. Discussion: The iACTwithPain intervention is expected to improve CP patients’ psychosocial functioning, quality of life, and empowerment, by promoting adaptive disease management and regulation of pain-related internal experiences. Results will contribute to a better understanding on the pertinence of adding compassion elements to ACT for CP and to reach an optimized intervention for CP. (shrink)

In this note we introduce and study algebras of type such that is a bounded distributive lattice and ⌝ is an operator that satisfies the condition ⌝ = a ⌝ b and ⌝ 0 = 1. We develop the topological duality between these algebras and Priestley spaces with a relation. In addition, we characterize the congruences and the subalgebras of such an algebra. As an application, we will determine the Priestley spaces of quasi-Stone algebras.

About 35 years ago Wheeler introduced the motto “law without law” to highlight the possibility that Physics may be understood only following regularity principles and few relevant facts, rather than relying on a treatment in terms of fundamental theories. Such a proposal can be seen as part of a more general attempt summarized by the slogan “it from bit”, which privileges the information as the basic ingredient. Apparently it seems that it is possible to obtain, without the use of physical (...) laws, some important results in an easy way, for instance, the probability distribution of the canonical ensemble. In this paper we will present a general discussion on those ideas of Wheeler’s that originated the motto “law without law”. In particular we will show how the claimed simplicity is only apparent and it is rather easy to produce wrong results. We will show that it is possible to obtain some of the results treated by Wheeler in the realm of the statistical mechanics, using precise assumptions and nontrivial results of probability theory, mainly concerning ergodicity and limit theorems. (shrink)

Este livro apresenta um debate sobre os rumos da política na sociedade. São abordados temas como a participação na vida pública, o embate entre liberdade pessoal e bem comum, os vieses de escolhas e constrangimentos, o descaso dos mais jovens em relação à democracia, a importância da ecocidadania. Além dessas questões, são apontadas ações indispensáveis como o trabalho com política na escola, o papel da educação nesse campo, como desenvolver habilidades de solução de conflitos e de construção de consensos.

Geometric statements are expressions of natural language with descriptive meaning, since they refer to things such as triangles, and to their characteristics. It is shown, following statements by authors such as Carnap (Philosophical foundations of physics) that geometric meanings are not factual, but mathematical, so that it is not geometric theories that apply, but geometrically interpreted factual theories. Under the Euclidean paradigm, the object of study of geometry was space, but the theoretical pluralism that replaced it resulted in the creation (...) in the discipline of a new plural ontology according to which there are different spaces: Euclidean, hyperbolic and elliptic. Thus, geometrical knowledge no longer seems to be a knowledge of the universal (of universal characteristics of space), but of the particular: of individual spaces. If geometrical theories are mathematical, these questions constitute obstacles both to the thesis that mathematical knowledge is universal, and to the thesis that it is universally applicable. (shrink)

Hilbert algebras provide the equivalent algebraic semantics in the sense of Blok and Pigozzi to the implication fragment of intuitionistic logic. They are closely related to implicative semilattices. Porta proved that every Hilbert algebra has a free implicative semilattice extension. In this paper we introduce the notion of an optimal deductive filter of a Hilbert algebra and use it to provide a different proof of the existence of the free implicative semilattice extension of a Hilbert algebra as well as a (...) simplified characterization of it. The optimal deductive filters turn out to be the traces in the Hilbert algebra of the prime filters of the distributive lattice free extension of the free implicative semilattice extension of the Hilbert algebra. To define the concept of optimal deductive filter we need to introduce the concept of a strong Frink ideal for Hilbert algebras which generalizes the concept of a Frink ideal for posets. (shrink)

Covering a broad range of topics, this text provides a comprehensive survey of the modelling of chaotic dynamics and complexity in the natural and social sciences. Its attention to models in both the physical and social sciences and the detailed philosophical approach make this an unique text in the midst of many current books on chaos and complexity. Including an extensive index and bibliography along with numerous examples and simplified models, this is an ideal course text.

These two volumes consist of a critical edition and English translation of the two earliest known Armenian sets of scholia on the Heavenly Hierarchy of Dionysius the Areopagite. Composed in the monastic schools of Erznka in the late thirteenth century, these scholia provide significant insight into how the Heavenly Hierarchy in particular, and Armenian translations of Greek texts in general, were understood by Armenian scholars in the Middle Ages. This editio princeps of the scholia represents a rare critical edition of (...) a native Armenian composition from the medieval period. In addition to the text and translation, these volumes include a textual commentary as well as a critical collation and English translation of a number of scholia from the Armenian version of the Greek scholia on the Heavenly Hierarchy. (shrink)

El autor hace una lectura de la literatura de Cortázar desde la pregunta sobre la proximidad, y señala que la dificultad en delimitar con precisión el lugar de la subjetividad le viene a Cortázar de la desarticulación categorial provista por la herencia cartesiana y del contacto esporádico con el último Heidegger. Afirma que la literatura de Cortázar continúa el derrotero abierto por la modernidad tardía en tanto que los cuestionamientos alcanzan inexorablemente al sujeto.

Memory and forgetting are inextricably intertwined. In order to understand how memory works we need to understand how and why we forget. The topic of forgetting is therefore hugely important, despite the fact that it has often been neglected in comparison with other features of memory. This volume addresses various aspects of forgetting, drawing from several disciplines, including experimental and cognitive psychology, cognitive and clinical neuropsychology, behavioural neuroscience, neuroimaging, clinical neurology, and computational modeling. The first chapters of the book discuss (...) the history of forgetting, its theories and accounts, the difference between short-term and long-term forgetting as well as the relevance of forgetting within each of the numerous components of memory taxonomy. The central part summarizes and discusses what we have learned about forgetting from animal work, from computational modeling, and from neuroimaging. Further chapters discuss pathological forgetting in patients with amnesia and epilepsy, as well as psychogenic forgetting. The book concludes by focusing on the difference between forgetting of autobiographical memories versus collective memory forgetting. This book is the first to address the issue of forgetting from an interdisciplinary point of view, but with a particular emphasis on psychology. The book is scientific and yet accessible in tone, and as such is suitable for advanced undergraduate and postgraduate students of psychology and related subjects, such as science and neuroscience. (shrink)

El sentido de la vida es un tópico en filosofía. Este trabajo trata de ofrecer una respuesta acerca de qué se puede entender por el «sentido deportivo de la vida». Para ello se recurre a la filosofía de José Ortega y Gasset y sus comentaristas, pero también de Gustavo Bueno. Se desarrollan cada uno de los sintagmas de la expresión para, a continuación, enfrentar directamente la pregunta conductora de nuestra investigación: «¿Merece la pena dedicar la vida al deporte extremo?». Se (...) concluye que responder a esa pregunta exige establecer un criterio de valor extrasubjetivo; lo cual no es tarea fácil. (shrink)

In this work we will study Tarski algebras endowed with a subordination, called subordination Tarski algebras. We will define the notion of round filters, and we will study the class of irreducible round filters and the maximal round filters, called ends. We will prove that the poset of all round filters is a lattice isomorphic to the lattice of the congruences that are compatible with the subordination. We will prove that every end is an irreducible round filter, and that in (...) a topological subordination Tarski algebra A, every irreducible round filter is an end iff A is a monadic subordination Tarski algebra. As corollary of this result we have that the variety of monadic Tarski algebra can be characterised as the topological Tarski algebras where every irreducible open filter is a maximal open filter. (shrink)

The present paper introduces and studies the variety [MATHEMATICAL SCRIPT CAPITAL W]ℋn of n-linear weakly Heyting algebras. It corresponds to the algebraic semantic of the strict implication fragment of the normal modal logic K with a generalization of the axiom that defines the linear intuitionistic logic or Dummett logic. Special attention is given to the variety [MATHEMATICAL SCRIPT CAPITAL W]ℋ2 that generalizes the linear Heyting algebras studied in [10] and [12], and the linear Basic algebras introduced in [2].

This article sheds light on Hobbes’s concept of the state of nature through a reading of his conception of knowledge, which makes it possible to relate him with the ‘New Science’ or the Scientific Revolution. In consequence, this article describes Hobbes with some problems and traditions of the Scientific Revolution through a fresh reading of his theory of knowledge, whence the concept of the state of nature is redefined in terms of integral cause; this makes it possible to argue the (...) need for Commonwealth, excluding the anthropological pessimism traditionally attributed to Hobbes. (shrink)

Este estudio presenta una perspectiva diferente para la política en América Latina, centrada en la generación de subjetividades políticas alternativas y la transformación personal. Se critica la imposición del liberalismo y se argumenta que las opciones electorales actuales no han producido un cambio significativo para la mayoría de la población. Se propone el uso del poder destituyente y la insurrección, en lugar de la revolución, como medios para reducir la influencia del estado. Esto implica la creación de comunidades de elección, (...) cuyo criterio principal es el antagonismo compartido contra algún factor externo. Estas comunidades podrían abordar de manera más efectiva no solo la cuestión económica, sino también la del reconocimiento y los problemas derivados de la misma. Finalmente, se enfatiza que esta lucha no busca establecer ninguna ideología como base de su planteamiento y que sirva como guía. En cambio, se necesita aprender a reconocer y valorar las necesidades de las subjetividades que conforman el grupo, y atender a las mismas de manera directa, descubriendo en el contacto nuevas fuentes de sustento. (shrink)

Qual o sentido da vida? Por que aqui estamos? Será destino? Será escolha? Neste livro, Mario Sergio Cortella e Leandro Karnal, dois dos maiores pensadores contemporâneos no Brasil, se encontram para refletir sobre essas questões que há séculos fascinam e intrigam a humanidade. A ciência, a filosofia, a religião e a arte têm oferecido algumas possibilidades de resposta que os autores discutem aqui. Afinal, pode ser aterrador imaginar que não há um destino, algo que explique a nossa existência. Por (...) outro lado, a ausência de sentido nos deixa livres para ser e viver conforme desejarmos - embora isso implique também responsabilidade. Mas somos mesmo livres? Seja escolha ou destino, seja a vida um drama que vamos tecendo ou uma tragédia anunciada, fato é que estamos sempre a procurar algum propósito que torne a existência mais significativa. Mas o que explica que algumas pessoas tenham mais sucesso do que outras no que fazem? Seria dom, vocação ou resultado de um esforço? Como os autores apontam, talvez a vida seja menos inspiração e mais transpiração. (shrink)

En este artículo se ofrece un acercamiento riguroso a la ética existencial de Kierkegaard, a la vez que se muestra en qué momento se separa de la filosofía moral de Kant y opera como un correctivo de la misma. A partir de ambas concepciones de la ética es presentado el problema del actuar moral, tanto en su dimensión pura práctica (Kant y Kierkegaard), como en su dimensión existencial constitutiva (Kierkegaard), resaltando la importancia de la elección del sí mismo en conexión (...) con los principios de la moralidad. (shrink)

O artigo parte do pressuposto de que a ética é um complexo valorativo que se refere à relação do indivíduo com a comunidade, apesar da multiplicidade de sentidos e usos atuais do conceito e termo. O autor assume a concepção marxiana de análise da história e da política. Nessa concepção ontológica e histórica se supõe que a ética se tornou imprescindível pelo mesmo movimento através do qual a filosofia se tornou necessária: o desenvolvimento das forças produtivas. O que vai determinar (...) a evolução histórica do complexo da ética, dos Gregos até nossos dias, é o mesmo complexo social que predominou sobre nossa história: a propriedade privada. Enquanto movimento histórico universal, a tendência que se fez predominante foi a do desenvolvimento de relações humano-genéricas que se ampliaram até converter toda a humanidade em uma única história cotidiana. Afirma que somos universalmente burgueses, o que significa dizer que compartilhamos de uma mesma história ao lutarmos todos contra todos. O homem se tornou uma única humanidade se convertendo em lobo do próprio homem: a propriedade privada se tornou a nossa essência. Ela requer o mercado mundial, única possibilidade de universalidade e, enquanto mercadoria, apenas é capaz de uma relação, a da concorrência nucleada no individualismo que nos fragmenta. Enquanto o futuro da humanidade for limitado aos horizontes do capital, a ética continuará sendo uma onipresente necessidade cuja satisfação é uma impossibilidade ontológica. Debate que, se o trabalho é a categoria fundante do ser social, é liminarmente evidente que não há possibilidade de vigência da ética em uma sociabilidade fundada na produção de mais-valia, a forma contemporânea de exploração do homem pelo homem. Conclui que, frente a essa onipresente necessidade e brutal impossibilidade, tem sido comum a consciência em desespero se iludir imaginando ser capaz de superar esse antagonismo pela "exploração de novas possibilidades de novos conceitos". Inicia-se, desse modo, as elucubrações mais variadas em busca da "pedra filosofal" da questão da eticidade: como coadunar propriedade privada e uma vida cotidiana fundada na ética. Se quisermos um mundo ético há que se superar a propriedade privada. E isto, cientificamente, é a revolução comunista, aquela proposta por Marx e Engels. (shrink)