“元宇宙”现象的历史唯物主义探析

“元宇宙”已经成为一种社会现象。文章以历史唯物主义的方法,分析了“元宇宙”现象,认为:从底层逻辑看,“元宇宙”现象的出现是人类生产生活方式发展的历史必然,代表着人类生产方式生活化和生活方式生产化的发展趋势;从现象构成看,“元宇宙”现象主要涉及技术、经济、伦理三大类风险隐忧;从未来发展看,“元宇宙”现象是一种社会建构。资本主导下的“元宇宙”即是“物化宇宙”,强化劳动者主导将会走向“自由宇宙”。

Effects of f(R) Model on Dynamics of Axial Shear-Free Dissipative Fluids

We present a general analysis on non-static axial system with dissipative shear-free anisotropic fluid using polynomial inflationary f(R) model.We study the effects of dissipation on the dynamics of geodesic matter distribution.This leads the system either to rotation-free or expansion-free but not both simultaneously under geodesic condition.It is found that the system preserves its symmetry in both cases.For the rotation-free case,when there is no dissipation and Ricci scalar is constant,the axial system reduces to FRW universe model.This is exactly the same result obtained in general relativity.

Dynamics of Light in Teleparallel Bianchi-Type I Universe

In the present study, using the Fourier analysis method and considering the Bianchi-type I spacetime, we investigate the dynamics of photon in the torsion gravity, and show that the free-space Maxwell equations give the same results. Furthermore, we also discuss the harmonic oscillator behavior of the solutions.