ScienceDaily: Top Science News

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• Computer analysis of EEG patterns suggests a potential diagnostic test for autism at two years old
• Viewing images of high-calorie foods brings on high-calorie cravings, research finds
• Lead poisoning blocks recovery of California condor population
• Mystery of the flatfish head solved
• Cassini shows why jet streams cross-cut Saturn
• Scientists twist light to send data: Beams of light can be twisted and combined to transmit data dramatically faster
• Rate of severe reactions higher than thought in young children with food allergies
• Study slashes deforestation carbon emission estimate
• Parts of Mars may have been modified by liquid water in recent geologic times
• Complex thinking behind the bow and arrow
• Perfect nanotube could be grown one meter long, 50,000 times thinner than a human hair

Computer analysis of EEG patterns suggests a potential diagnostic test for autism at two years old Posted: 25 Jun 2012 05:30 PM PDT The largest, most rigorous study to date to investigate EEGs as a potential diagnostic tool for autism offers hope for an earlier, more definitive test. Widely available EEG testing can distinguish children with autism from neurotypical children as early as age two. Findings could be the basis for a future objective diagnostic test of autism particularly at younger ages when behavior-based measures are unreliable.

Viewing images of high-calorie foods brings on high-calorie cravings, research finds Posted: 25 Jun 2012 01:04 PM PDT New research indicates looking at images of high-calorie foods stimulates appetite and reward centers in the brain.

Lead poisoning blocks recovery of California condor population Posted: 25 Jun 2012 01:04 PM PDT A comprehensive study shows that California condors are continually exposed to harmful levels of lead, the principal source of that lead is ammunition, and lead poisoning from ammunition is preventing the recovery of the condor population.

Mystery of the flatfish head solved Posted: 25 Jun 2012 01:03 PM PDT A new discovery describes a fossil fish, named Heteronectes (meaning "different swimmer") that was found in 50 million year old marine rocks from northern Italy. This study provides the first detailed description of a primitive flatfish, revealing that the migrated eye had not yet crossed to the opposite side of the skull in early members of this group.

Cassini shows why jet streams cross-cut Saturn Posted: 25 Jun 2012 12:05 PM PDT Turbulent jet streams, regions where winds blow faster than in other places, churn east and west across Saturn. Scientists have been trying to understand for years the mechanism that drives these wavy structures in Saturn's atmosphere and the source from which the jets derive their energy.

Scientists twist light to send data: Beams of light can be twisted and combined to transmit data dramatically faster Posted: 25 Jun 2012 10:33 AM PDT Researchers have developed a system of transmitting data using twisted beams of light at ultra-high speeds -- up to 2.56 terabits per second.

Rate of severe reactions higher than thought in young children with food allergies Posted: 25 Jun 2012 09:59 AM PDT Young children with allergies to milk and egg experience reactions to these and other foods more often than researchers had expected, a study reports. The study also found that severe and potentially life-threatening reactions in a significant number of these children occur and that some caregivers are hesitant to give such children epinephrine, a medication that reverses the symptoms of such reactions and can save lives.

Study slashes deforestation carbon emission estimate Posted: 25 Jun 2012 08:30 AM PDT A new study with NASA participation has sharply reduced previous estimates of how much carbon was emitted into Earth's atmosphere from tropical deforestation in the early 2000s.

Parts of Mars may have been modified by liquid water in recent geologic times Posted: 25 Jun 2012 03:47 AM PDT A new study reveals that parts of Mars may have been modified by liquid water in recent geologic times, which might indicate more favourable conditions for life on the planet.

Complex thinking behind the bow and arrow Posted: 25 Jun 2012 03:46 AM PDT The bow and arrow have long been regarded as a possible indicator of culture in prehistoric times. Bows and arrows appear to have been in use for some 64,000 years, given evidence from South Africa. Until recently, their significance in human cognitive ability was unclear. Now two researchers have been able to decode the conceptual foundations of the bow and arrow.

Perfect nanotube could be grown one meter long, 50,000 times thinner than a human hair Posted: 19 Jun 2012 08:28 AM PDT At the right temperature, with the right catalyst, there's no reason a perfect single-walled carbon nanotube 50,000 times thinner than a human hair can't be grown a meter long. Scientists have explored the self-healing mechanism that could make such extraordinary growth possible.

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