Portada

    La filosofía de J.D. García Bacca

    No resulta fácil dar cuenta en pocas páginas del pensamiento filosófico de Juan David García Bacca, el filósofo más representativo del «exilio republicano», y uno de los más dignos del apelativo de «filósofo» en lengua castellana, como ya afirmó de él José Gaos.Son varias las razones de tal dificultad. En primer lugar, la amplitud de su obra escrita (supera ampliamente los quinientos títulos)” y de los temas sobre los que ha reflexionado. Y en segundo término, la variedad de sistemas de pensamiento y de inflexiones teóricas que ha experimentado su filosofar. En otros trabajos he presentado ya con más amplitud y profundidad, de modo diacrónico y sistemático, los diversos sistemas filosóficos por los que ha evolucionado y la diversidad de influencias que ha ido experímentando.

    Mas información

    Aquí tienes una muestra mas de como incluir pestañas para añadir la información que tu quieras, enlaces a secciones o lo que te parezca.

    Puede ser un buen lugar para añadir información sobre el blog o los autores, por ejemplo.

    Este texto lo puedes encontrar en el archivo tabs.php de la plantilla.

    La plantilla ha sido traducida por Ayuda Wordpress

    Artículos mas leídos

    Este es un buen sitio para mostrar a tus lectores los artículos mas populares. Para ello te vendrá bien el plugin "Popularity contest" de Alex King.

Nacionales

Chavismo admite que Capriles le llega a 8 millones de electores

Maru Morales 19-Mayo de 2012. El teniente coronel William Izarra, estratega político y principal teórico del oficialismo, advirtió que si el ...

De lo que nadie habla

Luis Fuenmayor Toro Varias veces lo he dicho, tanto en mi programa de radio “Debate con Fuenmayor”, por Radio UNO (1.340 ...

96% petróleo

GERVER TORRES Domingo 13 de mayo de 2012. En 1998, al momento de arribar Hugo Chávez al poder, las ventas petroleras venezolanas ...

OPEP: Venezuela es cuarto suplidor de petróleo a China

Andrés Rojas Jiménez 11-Mayo de 2012. El informe de la Organización de Países Exportadores de Petróleo del mes de mayo coloca ...

Nueva ley antipopular

Luis Fuenmayor Toro Algunos pensarán que critico más las acciones del Gobierno que las de la oposición, actitud totalmente lógica de ...

Colombia President looks for closer ties with China

Global Times-Agencies | May 10, 2012 01:25 By Xu Ming   China and Latin America's influence will deepen if they can work as ...

Venezuela: Esperando a Chávez

Aram Aharonian 03-05-2012. A pesar de la grave enfermedad del presidente Hugo Chávez, de su recaída luego del tratamiento con quimioterapia ...

FAN y Sebin podrán indagar sobre el crimen organizado

Javier Ignacio Mayorca 03-May de 2012. La reforma a la Ley Orgánica contra la Delincuencia Organizada y el Financiamiento del Terrorismo ...

Hace 5 años se concretó la nacionalización de la Faja Petrolífera del Orinoco

02-05-2012, AVN. El 1º de mayo de 2007 el Gobierno venezolano concretó la nacionalización de la Faja Petrolífera del Orinoco (FPO) ...

Inadmisible recurso de abstención contra Rafael Ramírez

25/04/2012. Noticias.- La Sala Político Administrativa del Tribunal Supremo de Justicia, con ponencia de la magistrada Trina Omaira Zurita, declaró ...

Preparan escenarios con Chávez, sin él o suspensión de elecciones

Hernán Lugo-Galicia 25-Abr de 2012. El Comando Carabobo dictó líneas a jefes de campañas regionales a puerta cerrada en la Sala ...

EEUU alerta por uso que dará Venezuela a su armamento

Tolemaida, Colombia martes 24 de abril de 2012  .- El secretario de Defensa de Estados Unidos, Leon Panetta, manifestó ayer su ...

Leyes

On the reality of the quantum state

Quantum states are the key mathematical objects in quantum theory. It is therefore surprising that physicists have been unable to agree on what a quantum state represents. One possibility is that a pure quantum state corresponds directly to reality. But there is a long history of suggestions that a quantum state (even a pure state) represents only knowledge or information of some kind. Here we show that any model in which a quantum state represents mere information about an underlying physical state of the system must make predictions which contradict those of quantum theory.

Política

Upcoming g8 forum and the objectives behind the looming great war

At the moment, the West cannot coexist with countries combining ownership of extensive natural resources with geopolitical might. The West may go on pretending to be unaware of the nuclear arsenals of Israel or Pakistan, a country with chronically poor governance that can’t or doesn’t try too hard to throw out the Talibs, but the spotlight sticks to the energy-rich Iran with its claims to regional leadership, even though the country is a signatory to the Nuclear Nonproliferation Treaty. By all means, Iran’s nuclear program is nothing more than a casus belli – even with no trace of interest in nuclear technologies, the country would still be in big trouble. Moscow should, in the meantime, keep in mind that it is destined to be the next target after Tehran as the same Brzezinski said that in the XXI century the US would develop against Russia, at the expense of Russia, and on the ruins of Russia.

Ciencia y tecnología

Existence of Faster Than Light Signals Implies Hypercomputation Already in Special Relativity

Within an axiomatic framework, we investigate the possibility of hypercomputation in special relativity via faster than light signals. We formally show that hypercomputation is theoretically possible in special relativity if and only if there are faster than light signals.

Crítica

Leibniz’s Infinitesimals: Their Fictionality, Their Modern Implementations, And Their Foes From Berkeley To Russell And Beyond

Many historians of the calculus deny significant continuity between infinitesimal calculus of the 17th century and 20th century developments such as Robinson’s theory. Robinson’s hyperreals, while providing a consistent theory of infinitesimals, require the resources of modern logic; thus many commentators are comfortable denying a historical continuity. A notable exception is Robinson himself, whose identification with the Leibnizian tradition inspired Lakatos, Laugwitz, and others to consider the history of the infinitesimal in a more favorable light. Inspite of his Leibnizian sympathies, Robinson regards Berkeley’s criticisms of the infinitesimal calculus as aptly demonstrating the inconsistency of reasoning with historical infinitesimal magnitudes. We argue that Robinson, among others, overestimates the force of Berkeley’s criticisms, by underestimating the mathematical and philosophical resources available to Leibniz. Leibniz’s infinitesimals are fictions, not logical fictions, as Ishiguro proposed, but rather pure fictions, like imaginaries, which are not eliminable by some syncategorematic paraphrase. We argue that Leibniz’s defense of infinitesimals is more firmly grounded than Berkeley’s criticism thereof. We show, moreover, that Leibniz’s system for differential calculus was free of logical fallacies. Our argument strengthens the conception of modern infinitesimals as a development of Leibniz’s strategy of relating inassignable to assignable quantities by means of his transcendental law of homogeneity.

Educacion

Independent Events in a Simple Random Experiment and the Meaning of Independence

We count the number and patterns of pairs and tuples of independent events in a simple random experiment: first a fair coin is flipped and then a fair die is tossed. The first number, equal to 888,888, suggest that there are some open questions about the structure of independence even in a finite sample space. We discuss briefly these questions and possible approaches to answer them.

Internacionales

El próximo foro del G8 y los objetivos detrás de la amenaza de una gran guerra

La lección que emana de toda esta historia de las relaciones de Rusia y Occidente es que las creencias de Moscú en la posibilidad de una sociedad con Occidente eventualmente demuestran ser ilusorias. Del mismo modo, la historia de las grandes guerras demuestra de manera convincente que los beneficios son típicamente cosechados por países que son los últimos en involucrarse. Este enfoque claramente garantiza al astuto un lugar en las filas de los ganadores. B. Borisov estuvo absolutamente acertado cuando en el año 2009 escribió en su “Mundo Maldito”: La creación de una configuración geopolítica similar a la Unión Euroasiática, cosa que haría posible –gracias a la suma del poderío de una coalición—la formación de una zona tapón—cosa que retardaría la entrada directa de Rusia en la guerra (la cual no necesariamente abarcaría el territorio metropolitano) debe ser considerada por Moscú como prioritaria. Esencialmente, el dilema de Rusia es escoger entre la formación de un bloque de naciones ahora mismo, cuando todavía existe un margen de libertad de maniobra o hacer lo mismo bajo la presión de una situación de combate. Debe tomarse en cuenta de manera inmediata que las oportunidades para reconformar el paisaje político en los territorios adyacentes a las fronteras rusas –como lo hizo tras el reciente conflicto con Georgia—se están evaporando día a día.

Opinion

Are Orbitals Observable?

In this paper I discuss the question whether orbitals can be observed or not. I argue that the answer depends on how the terms ‘orbitals’ and ‘observed’ are understood. The fact that different authors take radically different stances on the issue is caused by their employing different uses of either of the two terms. I furthermore discuss a recent argument by Labarca and Lombardi to the effect that the orbital concept in chemistry is discontinuous with that in quantum mechanics. I argue that, quite to the contrary, there is continuity between the two.

Ambiente

Is Eternal Inflation Past-Eternal? And What if It Is?

As a result of discussions with Bousso and Vilenkin I want to return to the question of whether the multiverse is past-eternal or if there was a beginning. Not surprisingly, given three people, there were three answers. However, the discussions have led to some common ground.
The multiverse being past-eternal, or at least extremely old has content and potential phenomenological implications. I will discuss how the oldness of the multiverse is connected with recent speculations of Douglas.

Economía

Double Exponential Instability of Triangular Arbitrage Systems

This paper investigates arbitrage chains involving d currencies and d foreign exchange trader-arbitrageurs. The commonly recognized belief in economics and finance is that arbitrage has the effect of causing prices in different markets to converge. This conjecture was recently disproved in Kozyakin et al. (2010); Cross et al. (2012), where was shown that for the case of four currencies arbitrage chains may be periodic or exponentially unstable. In contrast with the four-currency case, we find that arbitrage operations when d >= 5 currencies are present may appear very unstable, with the exchange rates growing in accordance with the double exponential law!

Filosofía

Complexity and Information: Measuring Emergence, Self-organization, and Homeostasis at Multiple Scales

Concepts used in the scientific study of complex systems have become so widespread that their use and abuse has led to ambiguity and confusion in their meaning. In this paper we use information theory to provide abstract and concise measures of complexity, emergence, self-organization, and homeostasis. The purpose is to clarify the meaning of these concepts with the aid of the proposed formal measures. In a simplified version of the measures (focussing on the information produced by a system), emergence becomes the opposite of self-organization, while complexity represents their balance. We use computational experiments on random Boolean networks and elementary cellular automata to illustrate our measures at multiple scales.

sociologia

Fast Multi-Scale Detection of Relevant Communities

Nowadays, networks are almost ubiquitous. In the past decade, community detection received an increasing interest as a way to uncover the structure of networks by grouping nodes into communities more densely connected internally than externally. Yet most of the effective methods available do not consider the potential levels of organisation, or scales, a network may encompass and are therefore limited. In this paper we present a method compatible with global and local criteria that enables fast multi-scale community detection. The method is derived in two algorithms, one for each type of criterion, and implemented with 6 known criteria. Uncovering communities at various scales is a computationally expensive task. Therefore this work puts a strong emphasis on the reduction of computational complexity. Some heuristics are introduced for speed-up purposes. Experiments demonstrate the efficiency and accuracy of our method with respect to each algorithm and criterion by testing them against large generated multi-scale networks. This study also offers a comparison between criteria and between the global and local approaches.