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Monday, September 29, 2014

ScienceDaily: Most Popular News

ScienceDaily: Most Popular News

New molecule found in space connotes life origins

Posted: 26 Sep 2014 06:36 PM PDT

Hunting from a distance of 27,000 light years, astronomers have discovered an unusual carbon-based molecule contained within a giant gas cloud in interstellar space. The discovery suggests that the complex molecules needed for life may have their origins in interstellar space.

Stone Age tools: Innovation was local, not imported, in Eurasia more than 300,000 years ago

Posted: 25 Sep 2014 11:12 AM PDT

Analysis of stone artifacts from the excavation of a 300,000-year-old site in Armenia shows that new technologies evolved locally, rather than being imported from outside, as previously thought.

Strategic or random? How the brain chooses

Posted: 25 Sep 2014 10:05 AM PDT

The brain can temporarily disconnect information about past experience from decision-making circuits, thereby triggering random behavior, a study has demonstrated. The new studies look at how the brain generates strategic and random behavior, and how it switches between the two modes.

Celiac disease: A wriggly solution to a first-world problem

Posted: 25 Sep 2014 07:09 AM PDT

Groundbreaking results were achieved in a clinical trial using hookworms to reduce the symptoms of celiac disease. The results are good news for sufferers of other inflammatory conditions such as asthma and Crohn's disease. In the small trial run over a year, 12 participants were each experimentally infected with 20 Necator americanus (hookworm) larvae. They were then given gradually increasing doses of gluten, with their daily dose in the final stage being equivalent to a medium-sized bowl of spaghetti.

ADHD: Brains not recognizing angry expressions

Posted: 25 Sep 2014 07:07 AM PDT

The characteristics of facial expression recognition of children with ADHD has been initially identified by researchers by measuring hemodynamic response in the brain. They showed that children with ADHD showed significant hemodynamic response to the happy expression but not to the angry expression. This difference in the neural basis for the recognition of facial expression might be responsible for impairment in social recognition and the establishment of peer-relationships.

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