Public Release: 16-Jul-2008
Current Anthropology
Archaeologists trace early irrigation farming in ancient Yemen
In Yemen, new evidence of ancient transitions from hunting and herding to irrigation agriculture have been found.

Public Release: 16-Jul-2008
Public Release: 16-Jul-2008
Brown papers reveal widespread, hardworking water on ancient Mars
Papers by Brown University scientists show that water on ancient Mars was pervasive and was working hard, changing the minerals below ground and on the surface. The paper in Nature by planetary geologist John Mustard lends the first in-depth look at the various terrains in which water-bearing minerals were present. A companion paper in Nature Geoscience by graduate student Bethany Ehlmann shows a clay-rich delta that may store past life.
NASA, National Science Foundation

Public Release: 16-Jul-2008
Current Biology
Men and women may need different diets: research
Diet can strongly influence how long you live and your reproductive success, but now scientists have discovered that what works for males can be very different for females. In the first study of its kind, the researchers have shown that gender plays a major role in determining which diet is better suited to promoting longer life or better reproductive success.
Australian Research Council Discovery Grant

Public Release: 16-Jul-2008
Gene variant found in those with African ancestry increases odds of HIV infection
A variant of a gene found only in people of African ancestry increases the odds of becoming infected with the human immunodeficiency virus by 40 percent, according to a long-term study of African Americans reported in the the journal Cell Host & Microbe, a publication of Cell Press. However, once people are infected, the same variant seems to protect against progression of the disease, allowing those who carry it to live about two years longer.
South Texas Veterans Health Care System
“The gene in question encodes a protein found mainly at the surface of red blood cells, which is called Duffy Antigen Receptor for Chemokines (DARC). The DARC variant found commonly in people of African ancestry leaves them without this particular red blood cell receptor. That so-called “DARC-negative” condition has been well studied because it also confers protection against infection by a malaria parasite known as Plasmodium vivax. (P. vivax is unfortunately not the parasite responsible for millions of malaria deaths each year in Africa today. The researchers speculate that this DARC gene variant may have risen to such high frequency as protection against some other, more lethal strain of malaria that existed at some time in the past.)”

Public Release: 15-Jul-2008
Current Biology
Caltech and UNC research finds further evidence for genetic contribution to autism
Some parents of children with autism evaluate facial expressions differently than the rest of us — and in a way that is strikingly similar to autistic patients themselves, according to new research by neuroscientist Ralph Adolphs of the California Institute of Technology and psychiatrist Joe Piven at the University of North Carolina at Chapel Hill.
National Institutes of Health, Simons Foundation


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