

I've just popped in here after a long break. Parallel universes = rubbish. They don't exist.
I don't think the universe had a beginning . the big bang is a big joke . They estimate the age of the universe to be 14 billion years old . This is determined by looking at light that left a star 14 billion years ago . You can look in the other direction and find light that is 14 billion...
The proteasome is a multisubunit structure that degrades proteins. Protein degradation is an essential component of regulation because proteins can become misfolded, damaged, or unnecessary. Proteasomes and their homologues vary greatly in complexity: from HslV (heat shock locus v), which is...
The use of stimulants (methylphenidate and amphetamine) as cognitive enhancers by the general public is increasing and is controversial. It is still unclear how they work or why they improve performance in some individuals but impair it in others. To test the hypothesis that stimulants enhance...
Background The glucocorticoid receptor (GR) and mineralocorticoid receptor (MR) evolved from a common ancestor. Still not completely understood is how specificity for glucocorticoids (e.g. cortisol) and mineralocorticoids (e.g. aldosterone) evolved in these receptors....
Talk by Anousheh Ansari about her trip to space
Talk by Mark Brosmer about "Space: Past, Present, and Your Future?"
For more information see: http://www.nasa.gov/