Research Articles on the Effects of Meditation
make major evolutionary shift in the lab
"A major evolutionary innovation has unfurled right in front
of researchers' eyes. And because the species in question is a bacterium,
scientists have been able to replay history to show how this evolutionary
novelty grew from the accumulation of unpredictable, chance events."
contingency in the evolution of E. coli
"This paper is all about how accidents in the genetics of a
population can shape its future evolutionary trajectory. It is describing
how a new capability that requires some complex novelties can evolve,
and it is saying plainly that in this case it is not by the fortuitous
simultaneous appearance of a set of mutations, but is conditional
on the genetic background of the population. That is, two populations
may be roughly equivalent in fitness and phenotype, but the presence
of (probably) neutral mutations in one may enable other changes
that predispose it to particular patterns of change." -- PZ
Microwave Anisotropy Probe
This primer in cosmological concepts is organized as follows:
-The main concepts of the Big Bang theory are introduced in the
first section with scant regard to actual observations.
-The second section discusses the classic tests of the Big Bang
theory that make it so compelling as the likely validdescription
of our universe.
-The third section discusses observations that highlight limitations
of the Big Bang theory and point to a more detailedmodel of cosmology
than the Big Bang theory alone provides. As discussed in the first
section, the Big Bang theorypredicts a range of possibilities for
the structure and evolution of the universe.
-The final section discusses what constraints we can place on the
nature of our universe based on current data, andindicates how WMAP
furthers our understanding of cosmology.
-In addition, a few related topics are discussed based on commmonly
The above article was taken from the following web site at NASA: