The existence of spacetime singularities is one of the biggest problems of nowadays physics. According to Penrose, each physical singularity should be covered by a “cosmic censor” which prevents any external observer from perceiving their existence. However, classical models describing the gravitational collapse usually results in strong curvature singularities, which can also remain “naked” for a finite amount of advanced time. This proceedings studies the modifications induced by asymptotically safe gravity on the gravitational collapse of generic Vaidya spacetimes. It will (...) be shown that, for any possible choice of the mass function, quantum gravity makes the internal singularity gravitationally weak, thus allowing a continuous extension of the spacetime beyond the singularity. (shrink)

From the perspective of successive events, chemical reactions are expressed or thought about, in terms of the cause-effect category. In this work, I will firstly discuss some aspects of causation and interaction in chemistry, argue for the interaction, and propose an alternative or complementary representation scheme called “interaction diagram”, that allows representing chemical reactions through a geometric diagram. The understanding of this diagram facilitates the analysis of reactions in terms of the interaction, or reciprocal action, among the participating entities. Secondly, (...) I will describe the model and provide examples and finally, I will discuss the scope and limitations of the current development status of the model. (shrink)

In the last decade, the notion of triad was reintroduced by Eric Scerri, who suggested it as a possible categorical criterion to represent chemical periodicity. In particular, he reformulated the notion of triad in terms of atomic number instead of atomic weights; in this way, the value of the intermediate term of the triad became the exact average of the values of the two extremes. Following the inspiration of Scerri’s work, the main purpose of this article is to obtain a (...) representation where all the relations among the chemical elements that form the groups of the periodic system can be reconstructed on the basis of triads, without using electronic configurations. (shrink)

The purpose of this work is to discuss which relation can be established between molecular chemistry, on the one hand, and macrochemistry and nanochemistry, on the other hand. In order to do this, we will consider molecular chemistry as an underlying level, and macrochemistry and nanochemistry as emergent levels. Emergence is characterized in very different ways in the philosophical literature; we will not discuss those differences. We will address a distinction between inter-domain emergence and intra-domain emergence. It is our purpose (...) to argue that, from a basal micro-molecular level, macrochemistry and nanochemistry emerge in parallel. The emergence of macrochemistry is an inter-domain emergence, while the emergence of the nanolevel is an intra-domain one. If this is the case, therefore macrochemistry and nanochemistry are not “successive” levels, but parallel ones. This discussion will be held from an ontological point of view, instead of the classical characterization in terms of scale. (shrink)

La metafora come strumento con il quale rinunciare a una teoria della definizione basata sulla sostanza, per preferire un linguaggio più evocativo.Metaphor as a tool by which giving up a substance based definition theory, in order to choose a more evocative language.

Il significato della metafora sta nelle nuove relazioni che si instaurano fra i termini, dunque essa fa esplodere il carattere puramente estensionale della classificazione porfiriana.

Nel processo di digitalizzazione dei testi sembrano emergere somiglianze e analogie con quegli anni del medioevo durante i quali si assiste all'incontro fra la tradizione latina occidentale e il patrimonio culturale di provenienza greca e araba. Due mondi che traducono per conoscere e per conservare: provare a confrontarli può aiutare a chiarire qualcosa sia dell'uno che dell'altro.

In this paper we will argue that the categories of physical individuals and chemical stuff are not sufficient to face the chemical ontology if nanomaterials are taken into account. From a perspective that considers ontological questions and wonders which the items involved in science are, we will argue that the domain of nanoscience must be considered as populated by entities that are neither individuals, as those of physics, nor stuff, as those items of macro-chemistry. This discussion, in virtue of the (...) analysis of the nature of nanomaterials, leads to propose a proper ontological category for nanoparticles: nanoindividuals. Nanomaterials are sorts of individuals, but they are different from physical individuals and from chemical stuff. We will also claim to contribute to the growing field of the philosophy of chemistry, especially regarding discussions that manifest not only epistemological but also ontological issues. In this scenario, the field on nanoscience is particularly challenging. (shrink)

Resumen Populismo es un término que ha devenido moda en el discurso político contemporáneo, después de que algunos lo creían desaparecido. El término es aún de uso impreciso y se utiliza en diversas realidades discursivas, las que a su vez remiten a diferentes mundos objetivos: ideologías políticas, movimientos y agrupaciones políticas, estilos discursivos y programas de acción política y modos de obrar, tanto en los regímenes autoritarios como democráticos. Una primera parte de este trabajo se destina a un intento de (...) despejar esta selva semántica y tratar de ubicar el uso de los conceptos en su nivel adecuado, buscando definir los componentes que permiten caracterizar a un discurso populista. En alguna de las aproximaciones del populismo éste ha sido caracterizado como ideología, lo que también se analiza. En un segundo momento se estudian las perspectivas del análisis del discurso político, poniendo énfasis en la práctica de la cortesía y la descortesía en las manifestaciones concretas del discurso sobre el populismo, donde aparece como una forma particular de lograr adhesión afectiva, recurriendo a la construcción de una imagen social del otro o del destinatario favorable o positiva, en oposición al diferente u opuesto. Se analizan discursos de diferentes políticos del hemisferio occidental, tomados de los medios de comunicación, donde se busca ubicar los elementos populistas y el contexto en el que tienen o tuvieron lugar, tratando de analizar los efectos de ese discurso. Se toma en cuenta que en los debates políticos de cualquier escenario alrededor del populismo son más las expresiones de agresividad verbal y descortesía que las derivadas de una actitud de cortesía. (shrink)

This report describes a consultation case between a special education teacher and a school psychology student for a first grade student with a diagnosis of educable mental impairment. Adherence to data-based decision making and direct manipulation of hypothesized variables believed to be maintaining problem behaviors in the classroom revealed factors that were influencing the child’s behavior in the classroom. The teacher changed her behavior toward the student before a formal intervention plan could be developed and changes in student behavior were (...) observed. Child outcomes were systematically measured. Also, the acceptability of the consultation process was assessed. Results are discussed in terms of the possible reactive effects to behavioral consultation and functional assessment that may occurfor teachers who see solutions enlerge during data-based consultative problem solving. (shrink)

El artículo analiza algunas problemáticas centrales de la literatura caribeña, en particular de expresión francófona y anglófona, relacionadas, por un lado, con la falta de desarrollo y el funcionamiento colonial de sus sistemas literarios, y, por el otro, con el problema social, económico y político de la emigración en las Antillas. Como propongo, es la misma condición migrante de la literatura caribeña, en tanto sistema atravesado por el desplazamiento masivo de sus productores, la que en gran parte determina sus motivaciones (...) e intereses, enfocados a la identidad regional (y a la cultura regionalista) de modo recurrente. El artículo indaga, entre otros lugares-comunes (Glissant) del discurso literario caribeño, su estética geográficamente marcada que es enunciada aun desde un locus migrante (distante) con fines descolonizadores, los cuales se vinculan con la tradición anticolonialista, masculina y de sesgo militante del siglo pasado. Luego de una revisión de este legado a partir de dos aproximaciones críticas (Tinsley, Condé), se lee una serie de textos donde se observa la persistencia de la geoestética antillana, como A Small Place de Jamaica Kincaid, los cuales se apropian creativamente del discurso turístico desde una perspectiva geopolítica de resistencia a las dominaciones aún coloniales. (shrink)

Cet article est une contribution à la lecture de Fûdo, le milieu humain, ouvrage du philosophe japonais Watsuji Testurô qui aborde le thème du rapport de l’être humain au monde. Cette réflexion veut en éclairer certaines thèses, les comparer aux catégories de la philosophie occidentale et déterminer si Fûdo peut se comprendre comme une pensée de la finitude.

L’introduzione al fascicolo Analogia e medioevo sive vent’anni di analogie presenta il numero 18 di "Doctor Virtualis" e traccia le tappe fondamentali della rivista. Si delineano dapprima alcune linee della storia della rivista e le sue ispirazioni teoriche e storiografiche principali, per poi mettere in luce le ragioni della rilevanza del tema dell’analogia, come oggetto utilizzato e pensato nei secoli medievali e come strumento di ricerca storiografica, e infine si conclude con l’articolazione del fascicolo. The introduction to the issue Analogy (...) and the Middle Ages sive twenty years of analogies presents issue n. 18 of Doctor Virtualis and traces the milestones of the journal. It first sketches some lines of the history of the journal and its main theoretical and historiographical inspirations, then highlights the reasons for the relevance of the theme of analogy, as an object used and thought of in the medieval centuries and as a tool for historiographical research, and finally concludes with the articulation of the issue. (shrink)

This volume aims to generate a dialogue between scholarship on populism and social and political theory. It focuses on citizenship, class, gender, cleavages, sovereignty, accountability, participation, leadership, and parties. The volume explores how classical and current theorists developed these categories, how they were used by scholars of populism, and what populism tells us about their heuristic advantages and limitations. The authors of this book have studied populism in Europe, the US, and Latin America from distinct perspectives. The chapters thus focus (...) on experiences in both the Global North and South. Contributors are: Cecilia Biancalana, Paula Diehl, Reinhard Heinisch, Klaudia Koxha, Alfio Mastropaolo, Oscar Mazzoleni, Enrique Peruzzotti, Kenneth M. Roberts, Luis Roniger, and Carlos de la Torre. (shrink)