What If Vitamin D Deficiency Is a Cause of Autism?
sciam.com — A few researchers are turning their attention to the sunshine vitamin as a culprit, prompted by the experience of immigrants that have moved from their equatorial country to two northern latitude locations (Submitted by MrBabyMan) More...
Taming Humanity's Urge to War: Scientific American
sciam.com — As deep as scientists peer into human history and prehistory, they have found evidence of violence. That was the bad news from 17 researchers in anthropology and other fields at “The Evolution of Human Aggression: Lessons for Today’s Conflicts” conference, held at the University of Utah at the end of February. The good news is that much can be done (Submitted by jkillsl) More...
What Makes Us Human?
sciam.com — Chimpanzees are the closest living relatives of humans and share nearly 99 percent of our DNA. Efforts to identify those regions of the human genome that have changed the most since chimps and humans diverged from a common ancestor have helped pinpoint the DNA sequences that make us human. (Submitted by 1to1) More...
Time to Think Hydropower: Largest Renewable Resource in U.S.
sciam.com — Imagine what our economy would be like if almost half of our electricity came from renewable energy resources. No fuel price shocks, no foreign control, - just clean, abundant, affordable electricity. Analysts say that hydropower capacity can double in 30 years, rivaling the growth predicted for nuclear power and at a fraction of the cost. (Submitted by naturalpapa) More...
5 Years After: Portugal's Drug Decriminalization Policy Show
sciam.com — "In the face of a growing number of deaths and cases of HIV linked to drug abuse, the Portuguese government in 2001 tried a new tack to get a handle on the problem—it decriminalized the use of... street drugs. The theory: focusing on treatment and prevention instead of jailing users would decrease the number of deaths and infections." (Submitted by jlm3182) More...
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