ar X iv : a da p - or g / 96 05 00 1 v 1 1 4 M ay 1 99 6 Propagation of Information in Populations of Self - Replicating Code

ar X iv : a da p - or g / 99 05 00 2 v 1 4 M ay 1 99 9 Model of self - replicating cell capable of self - maintenance

We construct a simple model of a proto-cell that simulates a stochastic dynamics of abstract chemicals on a two-dimensional lattice. We assume that chemicals catalyze their reproduction through interaction with each other, and that between some chemicals repulsion occurs. We have shown that chemicals organize themselves into a cell-like structure that maintains its membranes dynamically. Furthe...

ar X iv : h ep - p h / 96 05 28 2 v 1 1 1 M ay 1 99 6 TWO TOPICS IN PARTICLE - ANTIPARTICLE MIXING

ar X iv : m at h / 99 05 00 1 v 1 [ m at h . A G ] 1 M ay 1 99 9 Tacnodes and cusps

ar X iv : a to m - p h / 96 05 00 9 v 1 2 4 M ay 1 99 6 Three - body recombination of ultra - cold atoms to a weakly bound s level

We discuss three-body recombination of ultra-cold atoms to a weakly bound s level. In this case, characterized by large and positive scattering length a for pair interaction, we find a repulsive effective potential for three-body collisions , which strongly reduces the recombination probability and makes simple Jastrow-like approaches absolutely inadequate. In the zero temperature limit we obta...

ar X iv : h ep - p h / 96 05 34 7 v 1 1 7 M ay 1 99 6 Neutrinos and Electromagnetic Gauge Invariance

It is discussed a recently proposed connection among U(1) em electromagnetic gauge invariance and the nature of the neutrino mass terms in the framework