Results 11 to 20 of about 766 (85)
POTENTIAL HISTORY: READING ARTIFICIAL INTELLIGENCE FROM INDIGENOUS KNOWLEDGES*
ABSTRACT Until the beginning of the twentieth century, history, as a core concept of the political project of modernity, was highly concerned with the future. The many crimes, genocides, and wars perpetuated in the name of historical progress eventually caused unavoidable fractures in the way Western philosophies of history have understood change over ...
Rodrigo Bonaldo +1 more
wiley +1 more source
Interesting Examples of Violation of the Classical Equivalence Principle but Not of the Weak One
The equivalence principle (EP) and Schiff’s conjecture are discussed en passant, and the connection between the EP and quantum mechanics is then briefly analyzed. Two semiclassical violations of the classical equivalence principle (CEP) but not of the weak one (WEP), i.e., Greenberger gravitational Bohr atom and the tree‐level scattering of different ...
Antonio Accioly +2 more
wiley +1 more source
A flat Friedmann‐Robertson‐Walker (FRW) multiscalar field cosmology is studied with a particular potential of the form V(ϕ,σ)=V0e-λ1ϕ-λ2σ, which emerges as a relation between the time derivatives of the scalars field momenta. Classically, by employing the Hamiltonian formalism of two scalar fields (ϕ, σ) with standard kinetic energy, exact solutions ...
J. Socorro +3 more
wiley +1 more source
¿Cómo construir cuerpos individuales en el universo cartesiano?
En el presente artículo se muestra que en la cosmología cartesiana no resulta claro cómo se puede hablar o referir a cuerpos individuales en el marco de un universo absolutamente compacto.
Carlos Alberto Cardona Suárez +1 more
doaj +1 more source
We construct an effective four‐dimensional model by compactifying a ten‐dimensional theory of gravity coupled with a real scalar dilaton field on a time‐dependent torus. The corresponding action in four dimensions is similar to the action of K‐essence theories.
J. Socorro +3 more
wiley +1 more source
Danzas circulares, figuras espiroideas y predominancia del patrón levógiro entre los rarámuris
Para los rarámuri de la sierra Madre Occidental de México, una parte importante de la relación cuerpo-cosmología puede apreciarse en los rituales dancísticos a través del análisis de uno de los patrones más utilizados: las coreografías espiroideas y ...
Carlo Bonfiglioli
doaj +1 more source
We construct an effective four‐dimensional model by compactifying a ten‐dimensional theory of gravity coupled with a real scalar dilaton field on a time‐dependent torus. This approach is applied to anisotropic cosmological Bianchi type I model for which we study the classical coupling of the anisotropic scale factors with the two real scalar moduli ...
L. Toledo Sesma +3 more
wiley +1 more source
Classical Bianchi Type I Cosmology in K‐Essence Theory
We use one of the simplest forms of the K‐essence theory and we apply it to the classical anisotropic Bianchi type I cosmological model, with a barotropic perfect fluid (p = γρ) modeling the usual matter content and with cosmological constant Λ. Classical exact solutions for any γ ≠ 1 and Λ = 0 are found in closed form, whereas solutions for Λ ≠ 0 are ...
J. Socorro +3 more
wiley +1 more source
Age of the universe and the energy density of radiation
From the mathematical expression relating the redshift parameter with time and the cosmological densities of matter, radiation and vacuum in the Lemaitre model, we have derived an equation for the age of the universe at present time taking into account ...
Antonina Calahorrano, Carlos A. Marín
doaj +1 more source
Entre el futuro que ya llegó y el pasado que nunca pasó: diplomacias chaqueñas en el antropoceno [PDF]
Resumen Desde que Crutzen y Stoermer (2000) propusieron llamar “antropoceno” a la época actual, los debates en torno a dicho término han reverberado. Las filosofías y prácticas indígenas chaqueñas y amazónicas que presentaremos en este artículo traslucen
Florencia Tola +6 more
doaj +1 more source

