Nacionales

Rusia: Apagones en Venezuela son una “operación planificada” de EE.UU

RTÚN, 22 abril, 2019.- Los casos de desconexión masiva de las instalaciones de suministro de energía en Venezuela son el resultado ...

Víctor Álvarez: Un estallido social puede hacer tambalear al régimen

ND / 20 abr 2019.- El exministro de Hugo Chávez Víctor Álvarez reiteró este sábado que la crisis venezolana se ...

Vietnam investiga la pérdida de USD 504 millones de un proyecto de gas y petróleo en Venezuela

Agencias-Aporrea20-04-19.-El Ministerio de Seguridad Pública de Vietnam está investigando la pérdida de 504 millones de dólares en un proyecto de ...

EEUU da “una firme advertencia a Rusia” en Venezuela

19-04-2019. La Administración Trump decidió aplicar medidas financieras extremas contra Venezuela y bloquear el acceso al sistema del dólar al ...

Rusia dice que Venezuela pagó a tiempo los intereses de su deuda: agencia

19/04/2019. Venezuela realizó a tiempo el último pago a Rusia por los intereses de su deuda, señaló el viernes la ...

Guaidó: El 1 de mayo marcharemos para exigir el fin “definitivo” de la usurpación

Oleg Kostko / 19/04/2019.- El presidente del parlamento y quien es reconocido como presidente encargado de Venezuela por casi 60 ...

Repsol desmiente a Reuters y asegura que continúa el intercambio de petróleo con Venezuela

18 abril 2019 - La petrolera española Repsol habría suspendido temporalmente sus intercambios de productos refinados por crudo venezolano con ...

Einstein Millán Arcia: Que Significa Hacer Politica en Venezuela

18/04/2019. Nunca antes la 5ta república ha estado en posición de mayor fragilidad. Nunca antes la revolución ha estado más ...

Carlos Blanco: “Guerra a muerte”

ND 17 Abr 2019Venezuela es territorio de una guerra que sobrepasa a sus habitantes. Tiene lugar un combate entre una alianza ...

Gobierno de Maduro no comparecerá ante la CIJ por el caso del Esequibo

Jhoan Meléndez / 17 abr 2019.- La cancillería del Gobierno de Maduro informó este miércoles que no comparecerán ante la ...

EEUU sanciona al BCV

Eili Córdova/ 17 abr 2019.- El asesor de Seguridad Nacional de los Estados Unidos, John Bolton, anunció este miércoles nuevas ...

Chinese diplomat fires against US accusations in a third charged defense

Global TimesBy Bai Yunyi and Zhang Ao17/04/2019. In the latest harsh rebuttal by Chinese officials to US Secretary of State ...

Leyes

Una breve historia imaginaria

In this paper, from the historical point of view, we present short anecdotes about the development of the object that we well known as complex numbers.

Política

Brasil: la demolición de una potencia global

Cuando se escriba la historia de la segunda década del siglo XXI, podrá decirse que una de las principales potencias emergentes, integrante de los BRICS y líder de la integración de la región sudamericana, ingresó en un proceso de demolición de sus posibilidades como nación independiente. Tres son los aspectos destacados de esa auto-destrucción: el desmoronamiento de la burguesía brasileña que era la más importante de América Latina, el retroceso en los avances tecnológicos que sustentaban un desarrollo autónomo y la neutralización del nacionalismo militar. Las tres han estado estrechamente vinculadas desde la década de 1950, cuando el país comienza su industrialización.

Ciencia y tecnología

Explore with caution: mapping the evolution of scientific interest in Physics

In the book The Essential Tension Thomas Kuhn described the conflict between tradition and innovation in scientific research –i.e., the desire to explore new promising areas, counterposed to the need to capitalize on the work done in the past. While it is true that along their careers many scientists probably felt this tension, only few works have tried to quantify it. Here, we address this question by analyzing a large-scale dataset, containing all the papers published by the American Physical Society (APS) in more than 25 years, which allows for a better understanding of scientists’ careers evolution in Physics. We employ the Physics and Astronomy Classification Scheme (PACS) present in each paper to map the scientific interests of 181,397 authors and their evolution along the years. Our results indeed confirm the existence of the `essential tension’ with scientists balancing between exploring the boundaries of their area and exploiting previous work.

Crítica

Nancy, Badiou y Lacan: la composición compleja del concepto

En este artículo presentaremos primero dos discusiones muy puntuales que confrontan a Badiou con Nancy y Lacan en torno al vacío y al infinito. Mostraremos después cómo pensamos que se articula el concepto, tanto en filosofía como en psicoanálisis, a la luz de dichas complejidades y de las imbricadas relaciones entre los diversos dispositivos de pensamiento que ellas implican.

Educacion

Varying the explanatory span: scientific explanation for computer simulations

This article aims to develop a new account of scientific explanation for computer simulations. To this end, two questions are answered: what is the explanatory relation for computer simulations? and what kind of epistemic gain should be expected? For several reasons tailored to the benefits and needs of computer simulations, these questions are better answered within the unificationist model of scientific explanation. Unlike previous efforts in the literature, I submit that the explanatory relation is between the simulation model and the results of the simulation. I also argue that our epistemic gain goes beyond the unificationist account, encompassing a practical dimension as well.

Internacionales

Developing talent key to China’s innovation

Realizing China’s competition, the US has adopted a containment approach in an attempt to cut off the exchange of talent with China. Washington has blocked cooperation between American universities and Huawei, and has taken extremely strict restrictions on China-US technology exchanges. The number of international student visas has sharply dropped in the past few years – the biggest decline in visa approvals in 2017 was seen among students from China and India, according to CNN. This technology cold war approach goes against the trend of cooperation in globalization. It made China more aware of the importance of talent, both domestic and overseas. High-end talent is the key for a country to take the lead in future competition in innovation, and vying for more talent could be a theme. China will not only cultivate its own world-class talent by means of international interactions, but also to allow more overseas personnel to take root in China. As the saying goes, talent is the most valuable resource in the 21st century.

Opinion

Uncertainty from Heisenberg to Today

We explore the different meanings of “quantum uncertainty” contained in Heisenberg’s seminal paper from 1927, and also some of the precise definitions that were explored later. We recount the controversy about “Anschaulichkeit”, visualizability of the theory, which Heisenberg claims to resolve. Moreover, we consider Heisenberg’s programme of operational analysis of concepts, in which he sees himself as following Einstein. Heisenberg’s work is marked by the tensions between semiclassical arguments and the emerging modern quantum theory, between intuition and rigour, and between shaky arguments and overarching claims.

Ambiente

On Representational Redundancy, Surplus Structure, and the Hole Argument

We address a recent proposal concerning ‘surplus structure’ due to Nguyen et al. [‘Why Surplus Structure is Not Superfluous.’ Br. J. Phi. Sci. Forthcoming.] We argue that the sense of ‘surplus structure’ captured by their formal criterion is importantly different from—and in a sense, opposite to—another sense of ‘surplus structure’ used by philosophers. We argue that minimizing structure in one sense is generally incompatible with minimizing structure in the other sense. We then show how these distinctions bear on Nguyen et al.’s arguments about Yang-Mills theory and on the hole argument.

Economía

The Sino-US Trade War – Why China can’t win it

Conventional economic theory teaches us that money is a universal equivalent to all goods. Historically, currencies were a space and time-related, to say locality-dependent. However, like no currency ever before, the US dollar became – past the WWII – the universal equivalent to all other moneys of the world. Historically, no global leader has ever emerged from a shaky and distrustful neighborhood, or by offering little bit more of the same in lieu of an innovative technological advancement. Ergo, it all starts from within, from at home. Without support from a home base, there is no game changer. China’s home is Asia. Hence, it is not only a new, non-imitative, turn of technology what is needed. China has no future of what is planetary awaited – the third force, a game-changer, lasting and trusted global leader.

Filosofía

What is a proof? What should it be?

Mathematical proofs should be paired with formal proofs, whenever feasible.

sociologia

El Evangelio y el Imperio. San Agustín

En el registro civil de la historia universal el nacimiento del catolicismo está datado según esto en el año 70, cuando la comunidad judeocristiana desaparece y se cumplen las predicciones ecuménicas de San Pablo. Muy poco después toman forma definitiva los tres sinópticos, destinados a catequizar a las iglesias esparcidas por todo el mundo. Estos primitivos catecismos, no sólo tienen en cuenta el mensaje evangélico, sino también su propia circunstancia histórica, tanto más cuanto que esta circunstancia –la destrucción de Jerusalén y del templo– cobra nuevo sentido contemplada desde la muerte de Jesús y recíprocamente ayuda a comprender esa muerte desde una nueva perspectiva.