O artigo propõe abordar a construção da imagem de Isabel, a Católica aproximando Luiz de França foi um dos mais significativos mestres de maracatu nação. Dirigiu e articulou o maracatu Nação Leão Coroado, entre os anos de 1950 até sua morte, em 1997. Ainda hoje a sua memória é reivindicada por grupos de maracatus existentes no Recife. Tal questão indica diferentes aspectos nos processos de construção das memórias, e da forma como estas são usadas no presente. Este artigo objetiva discutir (...) e analisar as performances de Luiz de França, bem como suas estratégias cotidianas a partir das memórias dos maracatuzeiros pernambucanos. Entendendo a memória como fruto dos processos históricos, também é objetivo deste trabalho analisar as diferentes formas como a memória é construída, trazendo à tona questões de ordem teórico-epistemológica a respeito da cultura negra, dos maracatus e dos maracatuzeiros recifenses. (shrink)

The need for the political empowerment of women, and the role played by the media in both promoting and hindering it are well-known problems. A new opportunity to consider these problems as regards the Italian case was afforded by the 1999 presidential election. During that selection process, the proposal to appoint a woman as head of the nation was, for the first time, brought into the arena for debate. Neither of the two women who were candidates – European Commissioner Emma (...) Bonino and Minister of the Interior Rosa Russo Jervolino – were elected. Using the `public arenas model' and the concept of `framing', the article explores the rise and fall of the two female candidatures by highlighting the limits in the social construction of the women's agenda. Considered from this point of view, the campaign offers an interesting case study in order to better understand the mechanisms of gender exclusion. (shrink)

Cancer derives from a cell clone that has accumulated genetic and epigenetic changes that influence its phenotype and finally enable it to escape from the normal controls of proliferation. A recent paper shows that, in myc‐induced tumours, the inactivation of this oncogene produces the regression of the tumours and the differentiation of the tumour cells into mature osteocytes.1 In addition, a further reactivation of myc in these cells does not restore the malignant phenotype but induces apoptosis. This discovery could lead (...) to an innovative therapeutic strategy. BioEssays 25:104–107, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

We give an example in which it is possible to understand quantum statistics using classical concepts. This is done by studying the interaction of chargedmatter oscillators with the thermal and zeropoint electromagnetic fields characteristic of quantum electrodynamics and classical stochastic electrodynamics. Planck's formula for the spectral distribution and the elements of energy hw are interpreted without resorting to discontinuities. We also show the aspects in which our model calculation complement other derivations of blackbody radiation spectrum without quantum assumptions.

The overflow of scientific literature stimulates poor reading habits which can aggravate science's reproducibility crisis. Thus, solving the reproducibility crisis demands not only methodological changes, but also changes in our relationship with the scientific literature, especially our reading habits. Importantly, this does not mean reading more, it means reading better.

We present a description of the Stern–Gerlach type experiments using only the concepts of classical electrodynamics and the Newton’s equations of motion. The quantization of the projections of the spin (or the projections of the magnetic dipole) is not introduced in our calculations. The main characteristic of our approach is a quantitative analysis of the motion of the magnetic atoms at the entrance of the magnetic field region. This study reveals a mechanism which modifies continuously the orientation of the magnetic (...) dipole of the atom in a very short time interval, at the entrance of the magnetic field region. The mechanism is based on the conservation of the total energy associated with a magnetic dipole which moves in a non uniform magnetic field generated by an electromagnet. A detailed quantitative comparison with the (1922) Stern–Gerlach experiment and the didactical (1967) experiment by J.R. Zacharias is presented. We conclude, contrary to the original Stern–Gerlach statement, that the classical explanations are not ruled out by the experimental data. (shrink)

The objective of this work is to reconstruct the concepts of constellation, parataxis and essay, from the perspective of Theodor Adorno, in order to approach them by affinity, but demonstrating the way that each one expresses within its specificities the Adorno’s insistence in a model of thought in which the non-identical: 1) resists conceptual subsumption by arranging itself in a constellatory configuration; 2) it does not succumb to subordinate juxtapositions typical of merely communicative language; and, 3) finds its best philosophical (...) expression in the essay form. In order to do so, we will take as a starting point the adornian reconstruction of the constellation category as a legacy of Walter Benjamin’s thought, so that later we can present the expansion of this category in Adorno’s thought, relating it both to the conception of parataxis as in the conception of the essay form, but aiming to understand these categories as way of thinking philosophically aiming to elucidate the place of the non-identical in the scope of dialectical thinking of Theodor Adorno. (shrink)

In recent years there has been a wealth of studies investigating how memories are allocated in the hippocampus. Some of those studies showed that it is possible to manipulate the identity of neurons recruited to represent a given memory without affecting the memory's behavioral expression. Those findings raised questions about how the hippocampus represents memories, with some researchers arguing that hippocampal neurons do not represent fixed stimuli. Herein, an alternative hypothesis is argued. Neurons in high‐order brain regions can be tuned (...) to multiple dimensions, forming complex, abstract representations. It is argued that such complex receptive fields allow those neurons to show some flexibility in their responses while still representing relatively fixed sets of stimuli. Moreover, it is pointed out that changes induced by artificial manipulation of cell assemblies are not completely redundant—the observed behavioral redundancy does not imply cognitive redundancy, as different, but similar, memories may induce the same behavior. (shrink)

My experience concerning cases similar to the Wanglie case indicates that there was virtually no possibility of a solution for the conflict between the different expectations of the Wanglie family and those of the physicians caring for Helga Wanglie. A persistent vegetative state precludes a return to consciousness unless an extraordinary phenomenon takes place. Therefore, the physicians expected to be relieved of the duty of continuing to give Mrs. Wanglie respiratory care. However, her family thought it their duty to provide (...) their loved one with the best possible treatment. The family based their position on the claim that life is God's gift and that only He has the right to terminate it. Such spiritual convictions are perceived as reflective of a higher “truth” and are not predisposed to negotiation or change according to the situation. (shrink)

This article is a preliminary presentation of conjunctive paraconsistency, the claim that there might be non-explosive true contradictions, but contradictory propositions cannot be considered separately true. In case of true ‘p and not p’, the conjuncts must be held untrue, Simplification fails. The conjunctive approach is dual to non-adjunctive conceptions of inconsistency, informed by the idea that there might be cases in which a proposition is true and its negation is true too, but the conjunction is untrue, Adjunction fails. While (...) non-adjunctivism is a well-known option, the other view is not so much studied nowadays, but it was not unknown in the tradition, and there are some positive suggestions, in recent literature, that the position is plausible and deserves to be developed. The article compares conjunctivism, non-adjunctivism and dialetheism, then focuses on some possible justifications, costs and benefits of the conjunctive view. (shrink)

The paper advances the hypothesis that René Descartes presents a skeptical system of philosophy in Thomas Reid’s reading. There is a sort of ‘involun-tary’ or ‘accidental’ skepticism that results from the adoption by Descartes of both a skeptical method and a skeptical principle. The first section shows to what extent the Cartesian method of doubt – which focuses on the reliability of the faculties of the mind - is a skeptical demand that cannot be satisfied. The second section shows how (...) the principle of the Cartesian system – which establishes that ideas are the immediate objects of the operations of the mind – is not only skeptic but leads exactly and naturally to the most radical form of skepticism, namely, solipsism. The third section discusses the Cartesian sources of the doubt on the existence of external world according to Reid. (shrink)

The paper discusses Thomas Reid's objection to David Hume's theory of personal identity. The hypothesis states that this criticism is not effective because it is based on a misunderstanding of Hume’s theory, namely, that Hume would have admitted a negative ontological thesis - the inexistence of a mind beyond perceptions - and a positive ontological thesis - a mind reduced to a bundle of perceptions. After explaining in what measures Reid’s objection is based upon this misunderstanding, the paper shows why (...) Hume does not accept those theses,. (shrink)

The paper advances the hypothesis that David Hume’s philosophy explains the corporeal dimension of the self, particularly, one’s belief in a body as being ‘her own body’, as a part of one’s self, in light of three different perspectives: through the operations of the imagination, the associative principles and the perception of mental and physical parallel states; through the occurrence of certain passions in the mind, particularly, pride, humility, and self-interest which direct one’s attention to a body that is felt (...) to be her own body; through the consciousness of the ability of the will to guide the power of moving certain parts of the body. Finally, it is argued that the mental phenomenon of belief in one's own body is a mutual construction of the human mind, that is, it is produced simultaneously by intellectual, affective, and volitional operations. (shrink)

The paper presents and discusses how Thomas Reid's philosophy of common sense replies to the skepticism about the epistemic reliability of the faculties of mind. The hypothesis presented establishes that Reid’s reply has three arguments. First, Reid shows why it is impossible to prove the reliability of the faculties of mind and why philosophers may begin their investigations by accepting the truth of the beliefs due to these faculties. Secondly, Reid shows that it is inconsistent to choose one of these (...) faculties as the only source of true beliefs. This is arbitrary. Those authors, who choose, for example, consciousness as the only source of reliable knowledge, only reinforce the claim that all faculties of mind are equally reliable. Thirdly, if the faculties of the mind operate properly, that is, when our mind is not affected by any disorder or disease, there is no good reason to call them into question and to doubt the truth of their beliefs. (shrink)

I intend to discuss Hume’s theory of personal identity in Books I and II of the Treatise of Human Nature. First, I intend to argue that Hume’s distinction between a ‘personal identity with regard to thought and imagination’ and a ‘personal identity with regard to passions and self-interest’ is only methodological, not radical. That is, the philosopher does not sug-gest the existence of two distinct ideas of personal identity in mind. Secondly, I try to show the contribution of the passions (...) of pride and humility to the production of a belief in personal identity. Pride and humility contribute to the liveliness of this belief by producing the person’s interest in his sensations and actions of the past and the future. Thirdly, I want to show how passions and self-interest make it possible to explain the corporeal aspect of the belief in personal identity. I propose to discuss how the body and its qualities can be understood as constituent elements of the notion of personal identity. (shrink)

The paper covers the discussion of three aspects of Thomas Reid’s political thought. Initially, it presents and discusses Reid’s understanding of Politics. Secondly, it is argued that, unlike the first principles of other branches of knowledge, such as Mathematics, Philosophy of Mind and Morals, the first principles of Politics are not the first principles of common sense. Politics is founded on a form of empirical knowledge that cannot be identified with common sense, with the judgments and beliefs due to the (...) original constitution of mind that are shared by most humans. Finally, it is argued, from a parallel with the philosophy of nature, that common sense has only a methodological role in Politics. (shrink)