We explore the intimate connection between spacetime geometry and electrodynamics. This link is already implicit in the constitutive relations between the field strengths and excitations, which are an essential part of the axiomatic structure of electromagnetism, clearly formulated via integration theory and differential forms. We review the foundations of classical electromagnetism based on charge and magnetic flux conservation, the Lorentz force and the constitutive relations. These relations introduce the conformal part of the metric and allow the study of electrodynamics for (...) specific spacetime geometries. At the foundational level, we discuss the possibility of generalizing the vacuum constitutive relations, by relaxing the fixed conditions of homogeneity and isotropy, and by assuming that the symmetry properties of the electro-vacuum follow the spacetime isometries. The implications of this extension are briefly discussed in the context of the intimate connection between electromagnetism and the geometry of spacetime. (shrink)

O presente artigo possui como tema a análise da separação dos poderes e a regra da democracia, além da possibilidade do Tribunal Constitucional ser composto por indivíduos nomeados pelo Presidente da República, não cumprindo a regra democrática, e fazer o controle de constitucionalidade das leis, criadas através de um processo democrático. Serão respondidos: a separação dos poderes obedece à regra democrática? Quando o Poder Legislativo deixa de cumprir sua função típica de legislar, abre a oportunidade para o Supremo Tribunal Federal, (...) como Tribunal Constitucional que é, criar, através do ativismo judicial, as normas lacunosas? Isso fere a regra democrática? (shrink)

Using social information is not indiscriminate and being able to choose what to copy and from whom to copy is critical. Dogs are able to learn socially, to recognize, and respond to dog as well as human emotional expressions, and to make reputation-like inferences based on how people behave towards their owner. Yet, the mechanisms dogs use for obtaining and utilizing social information are still to be fully understood, especially concerning whether emotional cues influence dogs’ social learning. Therefore, our main (...) aim was to test the hypothesis that an emotionally charged interaction with the demonstrator of a “V” detour task prior to testing would affect subjects’ performance, by: changing the value of the information provided by the demonstrator or changing the valence of the learning environment. Our experimental design consisted of three phases: pre-test ; emotional display ; test. Only dogs that failed in pre-test were considered for analysis. We analyzed four dependent variables: success, time to solve the task, latency to reach the fence and matching the side of demonstration. For each, we used four models to investigate the effect of demographic factors; experimental design factors ; behavior of the dog; and side chosen and matching. All models took into account all trials and the first trials only. Our findings corroborate previous studies of social learning, but present no evidence to sustain our hypothesis. We discuss the possibility of our stimuli not being salient enough in a task that involves highly motivating food and relies on long and highly distracting interval between phases. Nevertheless, these results represent an important contribution to the study of dog behavior and social cognition and pave the way for further investigations. (shrink)

The Embodied Mind provides a unique, sophisticated treatment of the spontaneous and reflective dimension of human experience.

L’apparition du musée « moderne » qui cherche à repenser, dans la première moitié du XX e siècle, les fonctions de l’institution muséale et la nature des objets qu’elle expose, requiert l’élaboration de projets architecturaux spécifiques. Le plan libre et la transparence se substituent alors à la traditionnelle boîte compartimentée et opaque, pour des raisons qui excèdent le simple souci de flexibilité fonctionnelle. La comparaison des propositions radicales d’édifices-musées modernes de Le Corbusier et de Mies van der Rohe permet de (...) mettre en évidence, au-delà de certaines caractéristiques formelles communes, le caractère réducteur d’une lecture uniforme du modernisme architectural appliqué au musée. (shrink)

We comment on the last chapter of Henrich where the author offers a ‘key’ to Hegel’s Logic focusing on the problem of the passage from self-reference to determination in the beginning of the Logic. We argue that what he offers as a ‘key’ is actually a reduction of Hegel to the logic of understanding from the point of view of an autonomous Ego; consequently, he excludes dialectics. Contrarily, we present Hegel’s own solution, eliciting the remark where he shows that the (...) proposition “Being and Nothing are the same” negates itself insofar as it is uttered and reflected on the Other’s understanding. We conjecture that this remark offers a privileged point from which to consider the connection Hegel-Lacan, provided we recognize the Absolute in Hegel as the big Other in Lacan. We suggest that the dialectical identity of identity and difference is actually an operation in the Agora and that the Hegel-Marx-Lacan theory can be properly denominated dialectical materialism. We also offer an answer to Žižek’s question of how a “neutral medium of designation” can emerge within a “life-world practice” or out of a “universe of matter. (shrink)

Language and speech depend on a relatively well defined neural circuitry, located predominantly in the left hemisphere. In this article, I discuss the origin of the speech circuit in early humans, as an expansion of an auditory-vocal articulatory network that took place after the last common ancestor with the chimpanzee. I will attempt to converge this perspective with aspects of the Mirror System Hypothesis, particularly those related to the emergence of a meaningful grammar in human communication. Basically, the strengthening of (...) auditory-vocal connectivity via the arcuate fasciculus and related tracts generated an expansion of working memory capacity for vocalizations, that was key for learning complex utterances. This process was concomitant with the development of a robust interface with visual working memory, both in the dorsal and ventral streams of auditory and visual processing. This enabled the bidirectional translation of sequential codes into hierarchical visual representations, through the development of a multimodal interface between both systems. (shrink)

The proper limit to paternalist regulation of citizens' private lives is a recurring theme in political theory and ethics. In the present study, we examine the role of beliefs about free will and determinism in attitudes toward libertarian versus paternalist policies. Throughout five studies we find that a scientific deterministic worldview reduces opposition toward paternalist policies, independent of the putative influence of political ideology. We suggest that exposure to scientific explanations for patterns in human behavior challenges the notion of personal (...) autonomy and, in turn, undermines libertarian arguments against state paternalism appealing to autonomy and personal choice. (shrink)

Reseña: Omar García Corona. Una crítica descolonial de la Escuela de Frankfurt. Buenos Aires, Poliedro – Editorial de la Universidad de San Isidro, 2021.

RESUMO Este artigo tem como propósito realizar um resgate da trajetória intelectual de Maria Emilia Amarante Torres Lima. A obra dessa pesquisadora constitui um importante testemunho da história da Análise do Discurso de linha francesa, assim como do vínculo inicial dessa disciplina com a Psicologia Social. Em sua tese de doutoramento, orientada por Michel Pêcheux, Lima desenvolveu um estudo pioneiro sobre o fenômeno do populismo no Brasil a partir da análise da construção e funcionamento dos discursos de 1º de maio (...) de Getúlio Vargas. No entanto, o trabalho dessa autora é pouco conhecido tanto dentro da Análise do Discurso, como da Psicologia. A fim de dar a ler essa memória, tomamos como aporte teórico-metodológico os estudos desenvolvidos por Jeanne Marie Gagnebin sobre memória e narração, em conjunto com os conceitos de arquivo e leitura-escritura elaborados por Michel Pêcheux. (shrink)

O presente trabalho propõe analisar, a obra base “A História da Loucura na Idade Clássica” do filósofo Michel Foucault, observando a maneira em que a loucura foi conceituada e tratada ao longo do período Clássico para compreender - por meio de uma dimensão histórica e filosófica - as formas em que se constituíram as relações de poder e silen- ciamento da loucura além da atualidade de sua problematização na sociedade contemporânea.

O presente texto procura refletir sobre as atuais propostas de reforma educacional elaboradas para a educação brasileira. Na tentativa de (re)pensar a educação, tanto do ponto de vista teórico quanto prático, aborda questões que abrangem este processo de elaboração. Busca enfatizar a influência exercida pelos órgãos internacionais e as conseqüências que os mesmos podem refletir na estrutura da sociedade brasileira.

The Green Revolution is often seen as epitomising the dawn of scientific and technological advancement and modernity in the agricultural sector across developing countries, a process that unfolded from the 1940s through to the 1980s. Despite the time that has elapsed, this episode of the past continues to resonate today, and still shapes the institutions and practices of agricultural science and technology. In Brazil, China, and India, narratives of science-led agricultural transformations portray that period in glorifying terms—entailing pressing national imperatives, (...) unprecedented achievements, and heroic individuals or organizations. These “epic narratives” draw on the past to produce meaning and empower the actors that deploy them. Epic narratives are reproduced over time and perpetuate a conviction about the heroic power of science and technology in agricultural development. By crafting history and cultivating a sense of scientific nationalism, exceptionalism, and heritage, these epic narratives sustain power-knowledge relations in agricultural science and technology, which are underpinned by a hegemonic modernization paradigm. Unravelling the processes of assemblage and reproduction of epic narratives helps us make sense of how science and technology actors draw on their subjective representations of the past to assert their position in the field at present. This includes making claims about their credentials to envision and deliver sustainable solutions for agriculture into the future. (shrink)

A functional approach to evolutionary morphology is emphasized in this paper. This perspective differs from the current structuralist trend, which emphasizes the constraining role of developmental paths. In addition, the present approach agrees with the adaptationist paradigm. It is further argued that three types of phenomena are better understood in this light: i.- the existence of evolutionary trends, ii.- the maintenance of certain structural features within a given taxon, and iii.- the irreversibility of evolution.

In early hominins, there possibly was high selective pressure for the development of reciprocal mother and child vocalizations such as proposed by Falk. In this context, temporoparietal-prefrontal networks that participate in tasks such as working memory and imitation may have been strongly selected for. These networks may have become the precursors of the future language areas of the human brain.

The isocortex is a distinctive feature of mammalian brains, which has no clear counterpart in the cerebral hemispheres of other amniotes. This paper speculates on the evolutionary processes giving rise to the isocortex. As a first step, we intend to identify what structure may be ancestral to the isocortex in the reptilian brain. Then, it is necessary to account for the transformations (developmental, connectional, and functional) of this ancestral structure, which resulted in the origin of the isocortex. One long-held perspective (...) argues that part of the isocortex derives from the ventral pallium of reptiles, whereas another view proposes that the isocortex originated mostly from the dorsal pallium. We consider that, at this point, evidence tends to favor correspondence of the isocortex with the dorsal cortex of reptiles. In any case, the isocortex may have originated partly as a consequence of an overall “dorsalizing” effect (that is, an expansion of the territories expressing dorsal-specific genes) during pallial development. Furthermore, expansion of the dorsal pallium may have been driven by selective pressures favoring the development of associative networks between the dorsal cortex, the olfactory cortex, and the hippocampus, which participated in spatial or episodic memory in the early mammals. In this context, sensory projections that in reptiles end in the ventral pallium, are observed to terminate in the isocortex (dorsal pallium) of mammals, perhaps owing to their participation in these associative networks. Key Words: basolateral amygdala; claustrum; Emx-1; endopiriform nucleus; dorsal cortex; dorsal ventricular ridge; hippocampus; homology; olfactory cortex; Pax-6; ventral pallium. (shrink)

En el presente trabajo reconstruyo las reflexiones realizadas por Hannah Arendt en sus Conferencias sobre la filosofía política de Kant. Específicamente, pondré el foco de la atención en la concepción de mentalidad amplia y cómo esta concepción se relaciona con otras ideas que Arendt recupera de la Crítica del juicio y que terminan amalgamándose con su propuesta filosófica. En este punto se suscita un problema que es menester señalar. Se trata de una tensión o contradicción que se produce en las (...) Conferencias entre la idea kantiana de mentalidad amplia y la exhortación que hace la autora a elegir activamente –tanto en política, filosofía y arte, como en la vida en general– las preferencias y las compañías. En el artículo arriesgaré una hipótesis de lectura que podría en principio disolver esa tensión, a saber: que si bien es preciso, en momentos críticos, contar con algún tipo de criterio respecto a qué perspectivas deben ser tomadas en cuenta en virtud de una amplitud de miras y cuáles no –por ejemplo, entre quienes tienen capacidad para juzgar y quienes no la tienen–, pasado dicho momento esos criterios deben revisarse y ponerse en tela de juicio. De lo contrario, se corre el riesgo de desvirtuar la idea kantiana de mentalidad amplía restringiéndola en función de nuestras preferencias. (shrink)

This paper aims to offer an analysis of the critique of reason developed by Max Horkheimer and Theodor W. Adorno in three of his most important books: Dialectic of Enlightenment, The critique of instrumental reason and Minima Moralia. Two fundamental questions are posed: Does the thought of the authors set a radical critique? If this is the case, wouldn't it imply a series of meta theorical problems and contradictions? In order to treat these questions, the statement is divided into two (...) parts. The first explores the recurring issues of the critique of reason. In the second, we elaborate a brief reconstruction of two opposite hermeneutics of Horkheimer and Adorno's works: on the one hand, the lecture of Frankfurt School's second generation ; on the other hand, Juan José Sánchez's exposition. Our principal contribution to this debate is to warn Sánchez that, in his justified intention of separating from Habermas and postmodern's reading, he finally weakens the contradictory and negative tone of Adorno and Horkheimer's philosophy.La temática que se aborda en este artículo es la crítica a la razón elaborada por Max Horkheimer y Theodor W. Adorno en tres obras fundamentales: Dialéctica de la Ilustración, Crítica de la razón instrumental y Minima Moralia. Las preguntas que se buscan responder son las siguientes: ¿Constituye el pensamiento conjunto de los autores una crítica radical? Si así fuera, ¿no implicaría una serie de problemas meta teóricos y contradicciones ? El escrito se divide en dos partes. En la primera se abordan los motivos recurrentes de la crítica a la razón. En la segunda, se elabora una sucinta reconstrucción de dos interpretaciones contrapuestas de las obras mencionadas: por un lado, la de los miembros de la segunda generación de la Escuela de Frankfurt, en particular la de Jürgen Habermas y la de Albrecht Wellmer; por otro lado, la del comentarista español Juan José Sánchez. El aporte teórico de este artículo consiste en advertirle a este último autor que, en su justificado afán de distanciarse de la lectura habermasiana y de la postmoderna, termina debilitando el tono contradictorio y negativo de la filosofía conjunta de Adorno y Horkheimer. (shrink)

Timelines is an inquiry into the nature of time, both as an apparent feature of the external physical world and as a fundamental feature of our experience of ourselves in the world. The principal argument of Timelines is that our coventional ideas about time are largely mistaken and that what we think of as independent physical time is actually our calibration of a certain relation between events. Namely, the relation between time-keeping events and the causal sequential differences of physical processes (...) which are real and independent of us. (shrink)

Why is Butterfield's best-seller The Origins of Modern Science such a powerful big picture, nearly impossible to move away from? Considered in the context of his life, the contrast between his attacks on Whig history and the contents of his best-seller reveals that his big picture of science continues at the centre because of his spiritual beliefs and practices. Butterfield did not make explicit his Christian world view to his history of science readers, although one could infer this from his (...) point that Christianity and the Scientific Revolution were the most significant events in universal history, transcending cultural boundaries. As long as Christian beliefs and practices continue to be at the centre of Western Society, so will Butterfield's big picture be at the centre. Western society is a Christian civilization. For Butterfield, the meaning of history is Christianity and The Origins of Modern Science is very much a Christian statement of the evolution of knowledge acquisition in Western society. To de-centre The Origins would require first a de-centred view of Christianity. (shrink)

The ultimate source of explanation in biology is the principle of natural selection. Natural selection means differential reproduction of genes and gene combinations. It is a mechanistic process which accounts for the existence in living organisms of end-directed structures and processes. It is argued that teleological explanations in biology are not only acceptable but indeed indispensable. There are at least three categories of biological phenomena where teleological explanations are appropriate.

Entre Dezembro de 1755 e Fevereiro de 1796, a aspiração de erguer em Lisboa uma biblioteca pública tem várias expressões, e o Alvará de Fevereiro de 1796 que cria a Real Biblioteca Pública da Corte representa, em certa medida, o culminar desse processo. António Ribeiro dos Santos, como responsável pela biblioteca, mostra como se entendia o que devia ser uma Biblioteca da Corte, os seus objectivos, os seus princípios de organização, o cuidado colocado na sua actualização, confirmando a centralidade política (...) de uma instituição onde se materializa a relação entre o poder e o saber, e onde se define como prioridade a abertura das colecções à leitura pública. Neste processo convergem conceitos e políticas distintas, relativamente às noções de biblioteca pública e de Biblioteca Real, e percebe-se a importância política atribuída a uma biblioteca pública da Corte como elemento central das atribuições do Estado. (shrink)

Phosphatidylinositol‐3‐kinases (PI3Ks) are lipid kinases that produce 3‐phosphorylated derivatives of phosphatidylinositol upon activation by various cues. These 3‐phosphorylated lipids bind to various protein effectors to control many cellular functions. Lipid phosphatases such as phosphatase and tensin homolog (PTEN) terminate PI3K‐derived signals and are critical to ensure appropriate signaling outcomes. Many lines of evidence indicate that PI3Ks and PTEN, as well as some specific lipid effectors are highly compartmentalized, either in plasma membrane nanodomains or in endosomal compartments. We examine the evidence (...) for specific recruitment of PI3Ks, PTEN, and other related enzymes to membrane nanodomains and endocytic compartments. We then examine the hypothesis that scaffolding of the sources (PI3Ks), terminators (PTEN), and effectors of these lipid signals with a common plasma membrane nanodomain may achieve highly localized lipid signaling and ensure selective activation of specific effectors. This highlights the importance of spatial regulation of PI3K signaling in various physiological and disease contexts. (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)

The moral enhancement of human beings is a constant theme in the history of humanity. Today, faced with the threats of a new, globalised world, concern over this matter is more pressing. For this reason, the use of biotechnology to make human beings more moral has been considered. However, this approach is dangerous and very controversial. The purpose of this article is to argue that the use of another new technology, AI, would be preferable to achieve this goal. Whilst several (...) proposals have been made on how to use AI for moral enhancement, we present an alternative that we argue to be superior to other proposals that have been developed. (shrink)

Should the philosophy of biology deal with organismic, or with molecular aspects , or with both ? We are, of course, not the first to appreciate the ...

Children with HIV are dependent on taking continuous medication and care, and family preparation is required when disclosing HIV. This study aimed to unveil families’ experiences with HIV disclosure to children under 13 years old. Eight family members who have disclosed HIV to seropositive children were interviewed in‐depth and individually. The fieldwork took place at a public paediatric outpatient hospital in Rio de Janeiro. The results showed that the family members’ discourse highlighted two ways of knowing their own condition and (...) disclosing the condition of the children with HIV. First, they needed to address the communication of bad news and discover their own HIV status through their children's disease. Second, the disclosure was a process constituted by four stages: preparing for disclosure, identifying the time, deciding how and where to tell, and instilling silence after disclosure. They also recognized that nurses had a role in the process as part of an interprofessional team. Nurses can develop advocacy care and empower family members in the preparation of safe HIV disclosure. By systematizing and institutionalizing the care advocacy process, nurses may enable caretakers and children to participate in their therapeutic management, improving adherence to the treatment and self‐care with autonomy. (shrink)

This article discusses some of the claims of the earlier and later versions of the Contemporary Theory of Metaphor (CTM) and addresses some of the criticism that has been leveled against it. It is argued that much of this criticism arises from common misconceptions as to the real claims made by the theory. However, CTM is still in need of further exploration and empirical support. In this connection, we identify some areas where research is still needed and supply our own (...) developments. We argue for a more complex classification of metaphor types, which takes into account various complementary taxonomic perspectives, including the nature of source and target and the genericity and complexity of the metaphoric operation. We also explore metaphor in relation to cognitive prominence and conceptual interaction issues. Finally, we deal with the problem of constraints on metaphor and make a proposal for three complementary kinds of constraint. (shrink)

Si le nom d’Albert Camus continue de s’imposer, aujourd’hui, comme une figure incontournable de la littérature et de la pensée françaises du XXe siècle, il n’en est pas moins demeuré une personnalité cosmopolite, sensible à ce que la culture ne s’accomplit véritablement qu’en l’absence de sectarisme, qu’en présence de l’autre — avec ou envers lui, peu importe. C’est aussi tout le sens de la collection « Exotopies » de l’Association portugaise des études françaises (A.P.E.F.) qu’inaugure ce volume : présenter des (...) travaux sur la langue et la culture françaises, mais d’un point de vue singulier, celui d’un autre pays. En lisant ce bouquet assez restreint, mais en même temps assez diversifié de travaux sur l’oeuvre d’Albert Camus, on relèvera donc qu’il ne s’agissait ni d’un hommage, ni d’une commémoration, si contraires au vif esprit de la littérature, mais de s’aviser de l’exceptionnelle variété et actualité de son oeuvre. En ce sens, il n’est de meilleure figure pour débuter cette collection à visée cosmopolite que celle d’Albert Camus, chez qui le geste d’écriture est totalement inscrit dans une vocation humaniste. Celle-ci ne s’entend pas dans un sens moraliste, mais dans un sens existentiel — sinon existentialiste —, qui veut que chacun se définisse par le souci qu’il a de l’autre, et que l’humanité s’apparaisse comme le perpetuum mobile de l’histoire, en même temps que son point fixe, son sens dernier. (shrink)

This essay considers insects’ place-making powers in history of science topics. Insects have co-shaped the geographies of knowledge production throughout history in three primary dimensions: through their size, density, and multiplane existence. Insects’ miniature worlds have helped humans to create trans-scale analogies. Their spatial transgression and swarming capacity have overwhelmed people, including field researchers, contributing to the making of the places where science is produced. Finally, insects’ “ontologically alien” ways of engaging with environments (e.g., flying and living underground) have offered (...) valuable material for humans’ imaginings of their own realities. By prioritizing insects’ own spatial characteristics, this tripartite typology of human/insect entanglements intends to spur new ways of writing histories of science that engage with space and place. (shrink)

This collection of specially commissioned essays puts top scholars head to head to debate the central issues in the lively and fast growing field of philosophy ...

First English translation of two important works by the major revolutionary figure, Amilcar Cabral.

According to relevance theory, irony comprehension invariably entails the identification of some opinion or thought and the identification of the speaker’s dissociative attitude. In this paper, it is argued that it is also essential for hearers to identify not only that propositional attitude, but also the affective attitude that the speaker holds towards the source of this echo so that an optimallyrelevant interpretive outcomeis achieved. This notion comprises feelings and emotions of a non-propositional quality which affect the propositional effects obtained (...) in ironical communication. The paper further argues for the need to incorporate non-propositional effects into the traditional propositional object of pragmatic research. (shrink)

Political realism points out that politics is to create and sustain a legitimate order in a context of persistent disagreement, with the possible surge of conflicts, and where political power inevitably uses coercion. Political realists contend that modus vivendi is a contingent political arrangement at the level of the political constitution that allows diverse groups of people to coexist peacefully. Proposals of modus vivendi do not say enough about how to manage disagreements and conflicts. In this paper, I argue that (...) proposals of agonistic democracy supply this lack. I contend that agonistic democracy proposals share the premises of political realism and contribute to the sustainment of a liberal modus vivendi. (shrink)