HGT turbulence

HGT turbulence

Horizontal gene transfer (HGT) often leads to phylogenetic incongruence. When "duplicative HGT" introduces a second copy of a pre-existing gene, the two copies may then engage in gene conversion, leading to phylogenetically mosiac genes. When duplicative HGT is followed by differential gene conversion among descendant lineages, as under the DH-DC model, phylogenetic analysis is further complica...

Geophysical Turbulence Geophysical Turbulence

[Turbulence!].

Is 2D turbulence a conformal turbulence?

A critical analysis of the conformal approach to the theory of 2d turbulence is delivered. It is shown, in particular, that conformal minimal models cannot give a general turbulent solution, which should provide for constant fluxes of all vorticity integrals of motion. The problem of small-scale spectrum of two-dimensional turbulence is a peculiar problem among the variety of turbulent systems....

Chemical turbulence equivalent to Nikolavskii turbulence.

We find evidence that a certain class of reaction-diffusion (RD) systems can exhibit chemical turbulence equivalent to Nikolaevskii turbulence. We study an extended complex Ginzburg-Landau (CGL) equation derived from this class of RD systems. First, we show numerically that the power spectrum of this CGL equation, in the neighborhood of a codimension-two Turing-Benjamin-Feir point, is qualitati...