The mortality rate of patients affected with oral squamous cell carcinoma has been stable in recent decades due to several factors, especially diagnostic delay, which is often associated with a late stage diagnosis and poor prognosis. The aims of this paper were to: analyze diagnostic delay in OSCC and to discuss the various psychological factors of patients with OSCC, with particular attention to the patient’s fear of receiving news regarding their health; and the professional dynamics related to the decision-making processes (...) in cases of suspected OSCC. A preliminary review of literature focusing on OSCC diagnostic delay was performed. Seven articles were included with the diagnostic delay ranging from 45 days to approximately 6 months. Patients’ fears and, to a lesser degree, the concerns of dentists, were found to be still poorly investigated. On the basis of the authors’ professional experience, the development of oral lesions of unknown origin may generate different behaviors in the decision-making processes by patients and clinicians, and fear may play a key role in the distinct steps of this process. It is crucial to increase awareness and inform patients about the onset of OSCC, and contemporaneously encourage experimental studies on patients’ fear and professional behaviors with respect to communication regarding OSCC. (shrink)

We make a first attempt to axiomatically formulate the Montevideo interpretation of quantum mechanics. In this interpretation environmental decoherence is supplemented with loss of coherence due to the use of realistic clocks to measure time to solve the measurement problem. The resulting formulation is framed entirely in terms of quantum objects without having to invoke the existence of measurable classical quantities like the time in ordinary quantum mechanics. The formulation eliminates any privileged role to the measurement process giving an objective (...) definition of when an event occurs in a system. (shrink)

En el presente artículo se estudia la prueba a priori de Leibniz en favor de la medición de las fuerzas en su correspondencia con De Volder. El objetivo general es demostrar que este argumento no tiene privilegio para entender la noción leibniziana de acción primitiva de las sustancias. En primer lugar, se analiza el contexto histórico y conceptual que permite comprender dicha prueba a priori. En particular, se explica por qué Leibniz moviliza este argumento y se especifican las nociones allí (...) utilizadas, tales como la de fuerza, acción y acción formal. En segundo lugar, se estudia la estructura de la prueba para analizar su validez. Para ello, se presentan los principales problemas que fueron objeto de las críticas de De Volder y se muestra bajo qué supuesto la prueba es sólida. En tercer lugar, se examina el alcance de esta prueba en relación con el argumento a posteriori y se argumenta que no tiene ninguna ventaja en lo que concierne a la comprensión de la metafísica de Leibniz. (shrink)

Contrary to empiricist hopes, Chakravartty claims that science cannot escape metaphysics. According to him, in line with the theory-ladenness thesis, science necessarily includes metaphysical presuppositions and metaphysical inferences. He contends that strong empiricism provides an implausible description of what scientists do. Furthermore, he claims, empiricists should recognize that in fact they entertain metaphysical beliefs. I analyze Chakravartty’s arguments and point out some significant weaknesses. Drawing on recent experimental results in the field of experimental psychology, I question the use of an (...) exaggerated theory-ladenness thesis and conclude that Chakravartty’s view concerning the relationship between science and metaphysics is far of successfully rebutting the empiricist proposals. (shrink)

We argue that it is fundamentally impossible to recover information about quantum superpositions when a quantum system has interacted with a sufficiently large number of degrees of freedom of the environment. This is due to the fact that gravity imposes fundamental limitations on how accurate measurements can be. This leads to the notion of undecidability: there is no way to tell, due to fundamental limitations, if a quantum system evolved unitarily or suffered wavefunction collapse. This in turn provides a solution (...) to the problem of outcomes in quantum measurement by providing a sharp criterion for defining when an event has taken place. We analyze in detail in examples two situations in which in principle one could recover information about quantum coherence: (a) “revivals” of coherence in the interaction of a system with the measurement apparatus and the environment and (b) the measurement of global observables of the system plus apparatus plus environment. We show in the examples that the fundamental limitations due to gravity and quantum mechanics in measurement prevent both revivals from occurring and the measurement of global observables. It can therefore be argued that the emerging picture provides a complete resolution to the measurement problem in quantum mechanics. (shrink)

There is growing worldwide concern that the rampant spread of digital fake news via new media technologies is detrimentally impacting Democratic elections. However, the actual influence of this recent Internet phenomenon on electoral decisions has not been directly examined. Accordingly, this study tested the effects of attention to DFN on readers’ Presidential candidate preferences via an experimental web-survey administered to a cross-sectional American sample. Results showed no main effect of exposure to DFN on participants’ candidate evaluations or vote choice. However, (...) the perceived believability of DFN about the Democratic candidate negatively mediated evaluations of that candidate—especially amongst far-right ideologues. These results suggest that DFN may at worst reinforce the partisan dispositions of mostly politically conservative Internet users, but does not cause or induce conversions in these dispositions. Overall, this study contributes novel experimental evidence, indicating that the potential electoral impact of DFN, although concerning, is strongly conditional on a reciprocal interaction between message receptibility and a pre-existing right-wing ideological orientation. The said impact is, therefore, likely narrow in scope. (shrink)

Disconcerting findings from nascent sociological research suggest that Western youth are developing subjectivities that reflect neoliberal discursive formations of self-interest, competitiveness, and materialism. However, propositions about: (1) the cognitive-affective mechanisms that explain how youth acquire and reproduce neoliberal ideology, or (2) the dispositions and behaviours that typify a neoliberal subject, remain vague. Therefore, this article provides a novel conceptualization of these two psychosocial facets that can help advance understandings and investigations of the emerging modes and societal consequences of neoliberal subjectification, (...) Specifically, it reviews major theoretical tenets from the respective literatures on neurocognitive development, social cognition, neoliberalism, and neoliberal hegemony. It then synthesizes these tenets within a modified habitus formulation to sketch a testable cognitive-sociological model to explain and explore some of the distinct dispositional values, attitudes, and practices that youth raised in societies with institutionally and culturally prevalent neoliberal norms and discourses potentially may develop and enact. (shrink)

CONTENIDO: Vestigios protodemocráticos en la Edad Media tardía: Marsilio de Papua, Nicolás de Cusa / Matthias Vollet / - La concepción normativa de la democracia: un aporte neokantiano / Rodolfo Arango / - El concepto de lo político y la razón pública en Schmit y Rawls / Miguel Vatter / - Democracia y liberación pública / Cristina Lafont / - La democracia desde la teoría de las emociones / Viviana Quintero / - Ontología y democracia en spinoza y Negri (...) / Amalia Rey / - Reconocimiento y redistribución: el rol de un teoría crítica de la democracia / Nicolás Espejo / - La contribución de Haberman a la crítica de la tecnocratización de la democracia / Luis Javier Orjuela / - Libertad, derecho y democracia: aspectos teóricos y pragmáticos, con énfasis en la competencia / Joachim Lege / - Democracia representativa y democracia deliberativa: reflexiones a partir de la situación peruana reciente / David Sobrevilla. (shrink)

This article aims to provide a brief overview of mental causation problem and its current proposed solutions. Indeed, mental causation turns out as one of the most difficult philosophical conundrums in contemporary philosophy of mind. In the first two sections, we offer an outline of the problem and the philosophical debate about it, and show that mental causation problem is pivotal within the contemporary philosophy of mind. In the third section, we focus on the most popular models of mental causation, (...) namely Kim's and Davidson's accounts, also discussing the objections raised against them. In the final section, we take into consideration some recent proposals poised to solve the mental causation problem, including powerism. Given the logical and metaphysical plausibility of almost all these different options, our conclusion is that mental causation is still an open problem and it is far from being resolved. (shrink)

Resumen En este trabajo evaluamos el impacto que la adopción de la relatividad del movimiento tiene en la metafísica de Leibniz. En particular argumentamos que el abandono de la comprensión absolutista del mismo anula su noción juvenil de sustancia corpórea. En primer lugar analizamos cómo entiende Leibniz las nociones de cuerpo y movimiento en el periodo juvenil y defendemos que la comprensión absolutista de este último constituye una piedra angular en su primera concepción de la sustancia corpórea. En segundo lugar (...) exponemos los argumentos leibnizianos a favor de la relatividad del movimiento durante el período parisino y mostramos su repercusión en el concepto juvenil de sustancia corpórea.In this paper we evaluate the impact of Leibniz's defense of relativity of motion on his metaphysics. We argue that the abandonment of the absolutist position makes void his first notion of corporeal substance. First, we analyze Leibniz's conception of body and movement in his youth and explain how the assumption of absolute motion during these years plays a role in his notion of corporeal substance. Second, we examine his arguments in favor of relativity of motion during the Parisian period and show the repercussion on his first conception of the corporeal substance. (shrink)

This paper focuses on an understudied aspect of Hobbes's natural philosophy: his approach to the domain of life. I concentrate on the role assigned by Hobbes to the heart, which occupies a central role in both his account of human physiology and of the origin of animal locomotion. With this, I have three goals in mind. First, I aim to offer a cross-section of Hobbes's effort to provide a mechanistic picture of human life. Second, I aim to contextualize Hobbes's views (...) in the seventeenth-century debates on human physiology and animal locomotion. In particular, I will compare Hobbes's views with the theories put forth by Harvey, Descartes, the Galenic, and Peripatetic traditions. Also, I will show that Hobbes was receptive to advances within contemporary English physiology and chemistry. Third, by means of a comparison with Descartes, I advance some hypothesis to explain why Hobbes indentified the heart, and not the brain (as was increasingly com... (shrink)

The use of real clocks and measuring rods in quantum mechanics implies a natural loss of unitarity in the description of the theory. We briefly review this point and then discuss the implications it has for the measurement problem in quantum mechanics. The intrinsic loss of coherence allows to circumvent some of the usual objections to the measurement process as due to environmental decoherence.

En la filosofía de J. Rancière es posible poner en evidencia una voluntad recurrente por afirmar y verificar la «igualdad de las inteligencias» que pasa, inicialmente, por el campo de la educación en su investigación sobre los postulados de J. Jacotot, un singular pedagogo francés del siglo XIX, y que desemboca en la política en su vínculo con la estética. En este artículo nos vamos a centrar en sus primeros trabajos, sobre todo, en su libro El maestro ignorante, para plantear (...) de qué manera puede hablarse de una «emancipación estética» en su filosofía para, luego, pasar a dilucidar las relaciones que este filósofo contemporáneo establece entre el arte, la estética y la política.Palabras clave: J. Rancière, Teorías de la emancipación, Estética y política, Educación estética, Políticas estéticas, Arte crítico o político. (shrink)

El autor trata en este artículo la problemática de la integración de la enseñanzadel conocimiento científico-tecnológico en la educación. Se analiza la forma de responder a las demandas por una “alfabetización científico- tecnológica”, que incluya la tecnología en los currículos educativos. El estudio propone fundamentar el diseño de los programas de estudio en base a un marco general para analizar la tecnología, sintetizado mediante los conceptos: práctica social, conocimiento y artefacto, enfoque que permite comprender el “fenómeno tecnológico” y el significado (...) del concepto moderno de tecnología. Esto daría las herramientas analíticas para una organización curricular que integre ciencia y tecnología ordenada desde dos perspectivas: la estructura lógico-epistemológica propia de los distintos campos: saber científico, científico-tecnológico, tecnológico-científico y de las formas en que opera la inteligencia del alumno que aprende, lo cual permitiría en la enseñanza, conjugar las distintas posibilidadesde desarrollar mecanismos de articulación de los conocimientos. The author treats in this problematic article of the teaching integra0tion of the technologic-scientific knowledge in education. The way of answering to the demands for an “alphabetization technologic-scientific” is analyzed, in which includes the technology in the educative curriculums. The survey proposes to establish the design of the study programs based to a general setting to analyzethe technology, synthesized by way of these concepts: social practice knowledge and device, approach which allows the understanding of the “technological phenomenon” and the meaning of the modern concept of the technology. Thiswould give the analytical instruments for a curricular organization, in which includes science and technology, ordered from two perspectives: the logic-epistemology structure typical of the different fields: scientific knowledge, scientific-technologic, technologic-scientific and the ways in which the intelligence of the pupil who learns operates, in which case would permit in teaching, conjugate the different possibilities to develop mechanisms of articulation of the knowledge. (shrink)

En este trabajo realizo un examen crítico del reciente libro de Silvana Gabriela Di Camillo sobre la crítica de Aristóteles a la teoría platónica de las Ideas. El libro de Di Camillo es un trabajo muy serio cuya lectura recomiendo ampliamente. Sin embargo, considero que cuatro de las principales tesis que la autora defiende tienen varias dificultades y mi objetivo aquí es presentar argumentos detallados en contra de ellas: la interpretación de la distinción entre argumentos más y menos rigurosos del (...) tratado Sobre las Ideas; la tesis de que la separación es el blanco esencial de las críticas aristotélicas a las Ideas; la interpretación de las opciones que Platón tiene para responder al argumento del tercer hombre, y la tesis de que la separación de las Ideas debe entenderse como homonimia. In this paper I examine Silvana Gabriela Di Camillo's recent book on Aristotle's criticisms of Plato's theory of Ideas. Di Camillo's book is a very serious work that I highly recommend. Nevertheless, I consider that four of the main theses that the author defends face several difficulties and my aim here is to offer detailed arguments against them: the interpretation of the distinction between more and less accurate arguments of the treatise On Ideas; the thesis that separation is the essential target of Aristotle's criticisms against Plato's Ideas; the interpretation of the options available to Plato to reply to the third man argument; and the thesis that the separation of Ideas should be understood as homonymy. (shrink)

Resumen En el presente trabajo analizo el concepto de cuerpo en los escritos maduros de Leibniz. En el marco del debate contemporáneo acerca del estatus de la sustancia corpórea examino el entramado de las tres nociones sobre las que se construye la metafísica leibniziana de los cuerpos, a saber, la de materia prima, la de cuerpo orgánico y la de extensión. En cada caso evalúo el estatus ontológico que Leibniz les reconoce así como el papel que cumplen en su metafísica.In (...) this paper I examine the concept of body in Leibniz’s mature writings. In the context of the contemporary debate on the status of the corporeal substance, I analyze the relation between the three notions from which he builds his metaphysics of bodies, namely, the primary matter, the organic body, and the extension. For each case I evaluate their ontological status and the role they play in his metaphysics. (shrink)

A ciência experimental se concentra de forma peculiar, embora não exclusiva, no exame dos componentes materiais presentes na natureza e em suas relações quantitativas. Esta abordagem tem sido extremamente bem-sucedida, mesmo que haja lacunas e perplexidades a serem superadas, que, por sinal, também fazem parte do modus operandi da investigação experimental. Entretanto, se esta investigação é necessária para compreender a totalidade da natureza, ela já não é suficiente, o que é também corroborado por um sentimento de incompletude presente nas teorias. (...) Assim, existem razões justificáveis para se investigar a presença de uma estrutura não conceptualizável apenas em termos quantitativos chamada Realidade Velada pelo físico Bernard d'Espagnat, que pode ser assimilada à composição transcendental clássica de ser e essência, desde que este último elemento da composição, a essência, seja equivalente à estrutura forma-matéria, ou estrutura hilemórfica (aqui, matéria deve ser assimilada à matéria prima). Ora, a existência de tal estrutura reposicionaria a filosofia da natureza como conhecimento complementar ao da ciência experimental no sentido de que ele daria uma contribuição metafísica qualitativa relevante à pesquisa do que está além do limiar essencialmente quantitativo, conquanto necessário, oferecido pelas ciências da natureza. (shrink)

The fascination of Velasquez's painting Las Meninas stems largely from the ambiguous relationship between the painting as a whole, viewed by a single perceiver, and the variety of different perceptual viewpoints it invites. This situation resonates strongly with a central puzzle in the study of consciousness: the apparent unity of perceptual experience despite multiple sense modalities. Understanding more of this latter might help to explain the way we respond to the painting.