[From Tom Bourbon (950912.0129)]
Coming soon, to this space:
Physicists Model Life: Part II.
Another blurb in _Science News_, about another article in _Physical Review
Letters_. This time, patterns "created" by distributions that result from
movements by large numbers of "stressed" bacteria are likened to patterns
created by diffusion processes in nonliving chemical systems. Their model
"emphasizes feedback mechanisms based on the interplay of chemical
attractants and repellents." Quoting from Science News, "The fact that
the computer simulations mimic the patterns observed in live colonies of
bacteria leads the physicists to conclude that "generic mechanisms" may be
at work." I wonder if the "mechanisms" in this week's model might be the
same as those in the model we reviewed last week. 
I will post more about their model, after I read the original article.
Tom