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)

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)

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)

Neste capítulo demonstra-se a importância da educação cidadã para a vida de cada indivíduo que opta pela prática da autoinseminação, pois por meio das informações adquiridas, as pessoas teriam uma Competência Crítica em Informação, desenvolvendo dessa forma, certo entendimento de possíveis consequências e efeitos da técnica da Autoinseminação, fato que poderia levá-las à procura por técnicas mais seguras para satisfação do desejo de ter um filho. É exposto durante todo o embasamento que, quanto mais se conquista clareza e explicações através (...) da prática educativa, se torna perceptivo o instrumento privilegiado que se tem disponível - a educação, entretanto, observa-se também pouca exploração desse recurso. Portanto, durante a leitura deste capitulo, será possível visualizar a apresentação do papel contributivo que educação desempenha em relação à problemática que a autoinseminação estabelece atualmente a fim de evitar consequências à saúde da mulher, da criança e de toda a prole e eventuais efeitos jurídicos. (shrink)

Em 25 de maio de 2020 um homem negro americano, chamado George Floyd, morreu após ser asfixiado por mais de oito minutos por um policial branco na cidade de Minneapolis, nos EUA. Violentos protestos se seguiram ao longo do país com cartazes contendo as últimas súplicas de Floyd: “I can’t breathe” (Eu não consigo respirar). Pouco tempo depois, ainda sob o calor dos horrores da hora, outro fato também vinculado ao acontecimento recém-referido roubou a cena e chamou a atenção dos (...) principais meios de comunicação ao redor do planeta: tratava-se de um casal branco americano de moradores de um bairro nobre, em frente ao jardim de sua mansão de dois andares, esbravejando contra um grupo de negros que se dirigia para um protesto e resolveu cortar caminho passando por entre os casarões do bairro onde se encontrava o referido casal. O “detalhe” marcante dessa demonstração gratuita de ódio por parte do casal branco é que, enquanto o homem portava um potente fuzil moderno e a mulher uma pistola automática, ambos apontavam as armas contra os transeuntes negros que tiveram a “audácia” de se deslocar por entre os casarões da elite americana. O mais absurdo da situação foi um momento de transtorno colérico do casal branco que em certa altura do descontrole chegou a apontar a arma um contra o outro, revelando o completo desvario em que ambos se encontravam [...]. (shrink)

The internationalization strategies are analyzed in this article in order to understand the power of the Brazilian media. The study is based on bibliographic and documental research, interviews and case studies. It comes to the following findings: Brazilian media groups need a better understanding of their performance in the local and the international scenario; they must know and respect all legislation, as well as their local insertion, and the public targeted to validate their necessities.

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)

Um livro que abalará todas as suas crenças – Martim Vasques da Cunha Com o rigor de um scholar e a força argumentativa de um polemista, Francisco Razzo expõe uma tese perturbadora- esquerda, direita ou centro, somos todos responsáveis pelas jaulas voluntárias de nossas ideologias. A imaginação totalitária é a estreia promissora de um escritor que quer nos perturbar sem fazer nenhuma concessão. E, sobretudo, o relato de um exorcismo pessoal de alguém que também quer expulsar os demônios que (...) infestam a atual sociedade brasileira – especialmente quando esta crê que a política é a última esperança que nos resta. (shrink)

Este artículo aborda el papel que juega la “admiración” en la traducción heideggeriana de tres pasajes de la Metafísica de Aristóteles. Con base en el volumen 62 de la Gesamtausgabe, se muestra que la “admiración” se relaciona con tres temas fundamentales, a saber: el mundo, la vida y la comprensión. En primer lugar, analizo el tema del mundo compartido y del mundo circundante. En segundo lugar, describo el tema de la vida, la cual es interpretada como “premura insoslayable” y “clara (...) permanencia tranquila”. En tercer lugar, desarrollo el tema de la comprensión en tres fases: “epistémica”, “propia” y “visible”. Estos temas serán retomados en trabajos ulteriores como Ser y tiempo. Por tal motivo, las lecciones de 1922 son valiosas para conocer el itinerario filosófico de Heidegger en los años veinte. Finalmente, se intenta mostrar que la triple traducción del vocablo griego θαυμάζειν realizada por Heidegger, obedece a un criterio específico de interpretación fenomenológica acorde a los temas mencionados. (shrink)

What do we mean when we refer to the world? How does the world relate to the human person? Are the two interdependent and, if so, in what way? What does world mean for an ethnographer or an anthropologist? Much has been said of worlds and worldviews, but do we really know what we mean by these words? Asking these questions and many more, this book explores the conditions of possibility of the ethnographic gesture, and how these shed light on (...) the relationship between humans and the world in the midst of which they find themselves. As Pina-Cabral shows, recent decades have seen important shifts in the way we relate human thought to human embodiment--the relation between how we think and what we are. The book proposes a novel approach to the human condition: an anthropological outlook that is centered around the notions of personhood and sociality. Through a rich confrontation with ethnographic and historical material, this work contributes to the ongoing task of overcoming the theoretical constraints that have hindered anthropological thinking over the past century."--Page 4 of cover. (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)

Bravo, F. La dialéctica en Teilhard de Chardin.--Carías, R. El conocimiento de Dios en Max Scheler.--Cappelletti, A. J. El fuego y el logos en la filosofía de Heráclito.--Li Carrillo, V. Estructuralismo y antihumanismo.--Rosales, A. Martín Heidegger y la crisis de la filosofía transcendental.--Rosales, A. La crítica de Heidegger al idealismo moderno.--Rosales, A. El giro del pensamiento de Heidegger.

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)

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)

Algebraic quantum field theory (AQFT) puts forward three ``causal axioms'' that aim to characterize the theory as one that implements relativistic causation: the spectrum condition, microcausality, and primitive causality. In this paper, I aim to show, in a minimally technical way, that none of them fully explains the notion of causation appropriate for AQFT because they only capture some of the desiderata for relativistic causation I state or because it is often unclear how each axiom implements its respective desideratum. After (...) this diagnostic, I will show that a fourth condition, local primitive causality (LPC), fully characterizes relativistic causation in the sense of fulfilling all the relevant desiderata. However, it only encompasses the virtues of the other axioms because it is implied by them, as I will show from a construction by Haag and Schroer (1962). Since the conjunction of the three causal axioms implies LPC and other important results in QFT that LPC does not imply, and since LPC helps clarify some of the shortcomings of the three axioms, I advocate for a holistic interpretation of how the axioms characterize the causal structure of AQFT against the strategy in the literature to rivalize the axioms and privilege one among them. (shrink)

Los castillos ideológicos pueden parecer fortalezas inexpugnables, construidas sobre sólidas verdades, pero la historia nos da abundantes ejemplos de su desmoronamiento, debido simplemente a que no responden a lo que realmente son el hombre y el mundo, a la verdad objetiva de las cosas.

The interest in crossmodal correspondences, including those involving sounds and involving tastes, has experienced rapid growth in recent years. However, the mechanisms underlying these correspondences are not well understood. In the present study (N = 302), we used an associative learning paradigm, based on previous literature using simple sounds with no consensual taste associations (i.e., square and triangle wave sounds at 200 Hz) and taste words (i.e., sweet and bitter), to test the influence of two potential mechanisms in establishing sound–taste (...) correspondences and investigate whether either learning mechanism could give rise to new and long‐lasting associations. Specifically, we examined an emotional mediation account (i.e., using sad and happy emoji facial expressions) and a transitive path (i.e., sound‐taste correspondence being mediated by color, using red and black colored squares). The results revealed that the associative learning paradigm mapping the triangle wave tone with a happy emoji facial expression induced a novel crossmodal correspondence between this sound and the word sweet. Importantly, we found that this novel association was still present two months after the experimental learning paradigm. None of the other mappings, emotional or transitive, gave rise to any significant associations between sound and taste. These findings provide evidence that new crossmodal correspondences between sounds and tastes can be created by leveraging the affective connection between both dimensions, helping elucidate the mechanisms underlying these associations. Moreover, these findings reveal that these associations can last for several weeks after the experimental session through which they were induced. (shrink)

Although there are those who understand that the debates about the morality of the interruption of pregnancy are newly born, when analyzing some passages of the classical sources, the antiquity of such discussions is revealed. Likewise, as the legal, political and moral conclusions in such respects are often based on a metaphysical, anthropological, theological or biological position, it is necessary to enter these fields in order to fully explore the different edges of such a complicated object. In this way, this (...) work aims to show the terminological pitfalls that the words embryon and kyema generate for the understanding of Aristotelian embryology, which is the basis for understanding his position on abortion, as well as the scholastic debates that use this as a source. We aspire to analyze the various appearances of both terms in various works of Aristotle - fundamentally De generatione animalium and De partibus animalium - and show how there is no criterion to distinguish them in most contexts. (shrink)

O presente artigo tem como objetivo primordial articular as experiências de iniquidade e sofrimento a partir da operacionalização de alguns conceitos decisivos das obras de Hannah Arendt e Byung-Chul Han. Nesse sentido, pretendo mostrar que uma das formas hegemônicas de experiência do mal na contemporaneidade se revela na produção de vidas descartáveis em meio a sistemas político-culturais violentos, que se caracterizam por estar em constante devir e por reduzir os devires à própria descartabilidade humana. Isso se revela tanto no mal (...) radical presente nos campos de concentração nazistas, quanto na ditadora da positividade produtivista inerente a psicopolítica neo-liberal. (shrink)

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)

Resumo No Manifesto surrealista, de 1924, Breton explicita o produto da atividade surrealista como uma “luz de imagem”, gerado pela aproximação involuntária de duas realidades distantes. Essa estrutura dupla da imagem surrealista tem um caráter disruptivo, que rompe com a nossa percepção da realidade cotidiana. Com isso, abre-se a possibilidade de um espaço para a crítica social e histórica, bem como para uma intervenção estético-política justamente em uma sociedade na qual as formas tradicionais de crítica parecem estar neutralizadas. Essa experiência (...) surrealista e esse espaço aberto por ela Walter Benjamin caracteriza respectivamente com a fórmula “iluminação profana” e “espaço de imagem”. Ambos apresentam uma grande semelhança com alguns pontos e consequências, em seus conceitos, tanto de “imagem do pensamento”, como de “imagem dialética”, sobretudo na medida em que esses conceitos também são formulados em meio à crise cultural da sociedade europeia, nos 1920, e buscam uma saída revolucionária para a mesma. Trata-se de investigar aqui, por meio de uma análise comparativa dessas concepções de imagem, até onde vai a influência e a relevância do surrealismo para o pensamento figurativo-dialético de Benjamin e para sua compreensão da história.In the Surrealistic manifest from 1924, Andre Breton explains the product of surrealistic action as a “light of image” resulting from an arbitrary approach of two distant realities. This double structure of surrealistic image has a disrupting character that breaks our common perception of reality. Thus can open a space for social and historical criticism as well as for an aesthetical-political intervention in a society where traditional forms of criticism seem to be neutralized. Walter Benjamin defines this surrealistic experience and its opened space respectively with the expressions “profane illumination” and “image space”. Both have similarities with Benjamin’s ideas of “thought image” and “dialectical image”, especially because they were elaborated amidst the cultural european crisis in the 1920ies looking to find a revolutionary way out of it. Through a comparative analysis of these notions of image, this paper proposes to investigate the influence and the relevance of surrealism for Benjamin’s dialectical-figural way of thinking and his comprehension of history. (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)

v. 1. Parte histórica.--v. 2. Doutrina e crítica.

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.

Francisco Suárez (1548-1617) was one of the most important philosophers and theologians of Early Modern Scholasticism. Although Suárez spent most of his academic career as a professor of theology, he is better known today for his Metaphysical Disputations (Salamanca, 1597). The present volume contains a facing-page English translation of Metaphysical Disputations III & IV. Metaphysical Disputation III offers a general treatment of the properties of being as such, while Metaphysical Disputation IV deals with one of these properties in particular, (...) transcendental unity. The Latin text contained in this volume introduces a significant number of corrections to the text of the Vivès edition, the one standardly used by scholars of Suárez, and thus more faithfully reproduces the text of the first edition. The volume also contains a lengthy introduction that provides a detailed survey of the disputations' principal claims and arguments. (shrink)

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

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 book examines the conceptual contributions of constituent representatives in Spain during the nineteenth and twentieth centuries. The Spanish Parliament has been the stage for the political modernisation of the country. Constitutional debates have historically led to the gradual acknowledgement and broadening – usually unevenly – of citizens’ rights. At the same time, constitutional debates have created opportunities to design institutions and settle legal mechanisms to enforce rights and distribute state resources. The book identifies and analyses rhetorical and conceptual innovations (...) produced in such debates from a historical perspective. (shrink)