What exactly makes a stem cell a stem cell? The question may seem simplistic, but while we know a great deal of what stem cells can do, we don't yet understand the molecular processes that afford them such unique attributes.

Researchers who have analyzed sequence variations in two genes that regulate brain size in human populations have found evidence that the human brain is still evolving.

"Confronting Influenza: Are We Prepared?" A Symposium Presented by The Howard Hughes Medical Institute and The Center for Strategic and International Studies.

Emerging relationships between the two viruses could one day lead to a vaccine for human

A University of Florida researcher has discovered an unexpected link between the viruses that cause feline and human AIDS: Cats vaccinated with an experimental strain of the human AIDS virus appear to be at least as well-protected against the feline version of the disease as those immunized with the vaccine currently used by veterinarians.

New research into one of the world's most social bacteria - Myxococcus xanthus, has discovered that it has a gourmet style approach to its consumption of phosphates, which provides a key clue to what makes it the most "social" of bacteria.

Findings by Geri Richmond's team provide insight for environmental challenges

Chemists have discovered details about how the tadpole-shaped molecules found in many soaps and detergents bury their heads into the top-most surface of water, an insight expected to yield benefits such as better methods for cleaning up environmental hazards. The findings of a team led by University of Oregon chemist Geri Richmond are featured on the cover of the Sept. 8 issue of the Journal of Physical Chemistry B.