Generalized notion of “liquid” and phase transition to turbulence
We try to explain the physical meaning of the notion of liquid “without interaction” and its characteristic property of having a small number of degrees of freedom. We show the relationship between opalescence and turbulence.
In this paper, the author analyzes theories of free will proposed by neurophysiologist Benjamin Libet and psychologist Daniel Wegner, and also engages with criticism of both theories by philosopher Daniel Dennett. In the end the author gives her own evaluation of these theories.
The generalized Wiedemann-Franz law for a nonisothermal quasi-neutral plasma with developedion-acoustic turbulence and Coulomb collisions has been proven. The results obtained are used to explain the anomalously low thermal conductivity in the chromosphere-corona transition region of the solar atmosphere. Model temperature distributions in the lower corona and the transition region that correspond to well-known experimental data have been determined. The results obtained are useful for explaining the abrupt change in turbulent-plasma temperature at distances smaller than the particle mean free path.
The problem of free will remains one of the primary unsolved problems of John Sealre’s philosophy. In his book ‘Freedom and Neurobilology’ (2007) Searle proposes two alternative hypothesis that would allow one to make sense of the nature of freedom, but ultimately finds both of them unsatisfactory. In this paper we propose a modified version of Searle’s argument, which attempts to reconcile the common sense intuitions with physiological determinism on the basis of Kahneman’s theory of cognitive systems. Specifically, we focus on the collision between the fast and the slow cognitive system as the basis for the experience of freedom.
We introduce a new asymptotic invariant of magnetic fields, namely, the quadratic (and polynomial) helicity. We construct a higher asymptotic invariant of a magnetic field. We also discuss various problems that can be solved by using the magnetic helicity invariant.
The article discusses the process of formation and evolution of the concept of Free will in the period of late Anquity and Middle Ages and also reasons of the fact that this concept became a foundation of European interpretation of personality and social teaching of the Catholic Church. The analysis was conducted on the basis of official legal documents of the Catholic Church, as well as on the basis of writings of Doctor of the Church. The compilation of theological and legal approaches makes it possible to assess influence of the catholic teaching on the formation of legal doctrine and West European mental model in comparative perspective.
The system of equations for average velocity and Reynolds stresses are examined supposing the smallness of diffusive, relaxation and viscous processes. Such turbulent state is named ideal. It is shown that the spectrum of turbulence has the form of spectrum of absolutely black body.
The Realist interpretation of 'War and Peace' - articulated by Martin Wight and Stanley Hoffmann - is based on Tolstoy's understanding of history as it is elaborated in his account of the Napoleonic invasion in the second epilogue of the book. There Tolstoy puts forward a mechanistic view of international relations which are assumed to be governed by inexorable laws of history determining human behaviour and limiting man's exercise of free will. However, Tolstoy's subjection of man to the workings of impenetrable laws of history in the second epilogue is at variance with a multiplicity of conscious moral choices that his three main characters - Nikolay Rostov, Andrey Bolkonsky and Pierre Bezukhov - make throughout the book. It is argued that the different treatment of the freedom vs. necessity problem in the fictional and historical narrative can only be understood contextually, i.e. from within Tolstoy' rejection of the Enlightenment tradition of scientific and moral inquiry.
Within the framework of model calculations the possibility of occurrence of the ion-acoustic oscillation instability in a plasma without current and particle fluxes, but with an anisotropic distribution function, which corresponds to heat flux is shown. The model distribution function was selected taking into account the medium conditions. The increment of ion-acoustic oscillation is investigated as functional of the distribution function parameters. The threshold condition for the anisotropic part of the distribution function, under which the build-up of ion-acoustic oscillation with the wave vector opposite to the heat flux begins is studied. The critical heat flux, which corresponds to the threshold of ion-acoustic instability, is determined. For the solar conditions, the critical heat flux proved to be close to the heat flux from the corona into the chromosphere on the boundary of the transition region. The estimations show that outside of active regions and even in active regions with weaker magnetic fields ion-acoustic turbulence can be responsible for the formation of the sharp temperature jump. The generalized Wiedemann-Franz law for a non-isothermic quasi-neutral plasma with developed ion-acoustic turbulence is discussed. This law determines the relationship between electrical and thermal conductivities in a plasma with well-developed ion-acoustic turbulence. The anomalously low thermal conductivity responsible to the formation of high temperature gradients in the zone of the temperature jump is explained. The results are used to explain some properties of stellar atmosphere transition regions.