Oscar Cordón Departamento de Ciencias de la Computación e Inteligencia Artificial, Universidad de Granada, Daniel Saucedo Aranda s/n, 18071 Granada, Spain, [email protected] European Centre for Soft Computing. Edificio Científico-Tecnológico, C/ Gonzalo Gutiérrez Quirós, s/n, 33600 Mieres (Asturias), Spain, [email protected] Sergio Damas Departamento de Lenguajes y Sistemas Info...

We consider torsional flow of a viscoelastic fluid in a cone-and-plate device. This flow is known to undergo a purely elastic instability when the Deborah number reaches a critical value. Beyond this critical value a Hopf bifurcation to spiral vortices occurs. In this paper we consider the stability of the flow to non-axisymmetric disturbances when the Reynolds number is non-zero. We examine th...

For the entire Islamic tradition, the crowning glory of Aristotelian logic is the syllogistic theory outlined in the Prior and Posterior Analytics, especially the latter. The purpose of logic is to provide the means whereby knowledge is to be acquired, and the most valuable type of knowledge is that which is certain and necessary, that is, knowledge gained according to the paradigm of demonstra...

theory about the origins, process and structure of the universe. Theologies and cosmologies outline how the universe happened, how it works and how it continues to happen. Consider how the Medieval world worked, according to both theologians and scientists. The universe was a three-story apartment building. Heaven on the penthouse, full of stars and God. Earth on the middle floor, housing peopl...

[PDF] [Full Text] [Abstract] , January 8, 2001; 204 (15): 2717-2731. J. Exp. Biol. G. B. Gillis and A. A. Biewener activation in a hip and knee extensor of the rat (Rattus norvegicus) Hindlimb muscle function in relation to speed and gait: in vivo patterns of strain and [PDF] [Full Text] [Abstract] , May 15, 2002; 205 (10): 1485-1494. J. Exp. Biol. T. J. Roberts and J. A. Scales Mechanical ...