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Saturday, December 27, 2014

ScienceDaily: Most Popular News

ScienceDaily: Most Popular News

To remove the gallbladder or not: That is the question

Posted: 23 Dec 2014 04:17 PM PST

Gallbladder removal is one of the most common operations performed in older adults. Yet, research suggests that many patients who would benefit most from the surgery don't get it.

Trial confirms Ebola vaccine candidate safe, equally immunogenic in Africa

Posted: 23 Dec 2014 05:40 AM PST

Two experimental DNA vaccines to prevent Ebola virus and the closely related Marburg virus are safe, and generated a similar immune response in healthy Ugandan adults as reported in healthy US adults earlier this year. The findings are from the first trial of filovirus vaccines in Africa.

Coral reveals long-term link between Pacific winds, global climate

Posted: 22 Dec 2014 10:13 AM PST

New research indicates that shifts in Pacific trade winds played a key role in twentieth century climate variation and are likely again influencing global temperatures. The study uses a novel method of analyzing coral chemistry to reveal winds from a century ago.

New, fundamental mechanism for how resveratrol provides health benefits uncovered

Posted: 22 Dec 2014 08:19 AM PST

Resveratrol, the red-wine ingredient once touted as an elixir of youth, powerfully activates an evolutionarily ancient stress response in human cells, scientists have found. The finding should dispel much of and controversy about how resveratrol really works.

Scientists 'map' water vapor in Martian atmosphere

Posted: 22 Dec 2014 08:16 AM PST

Scientists have created a 'map' of the distribution of water vapor. Their research includes observations of seasonal variations in atmospheric concentrations using data collected over ten years by the Russian-French SPICAM spectrometer aboard the Mars Express orbiter. This is the longest period of observation and provides the largest volume of data about water vapor on Mars.

Cheaper 3-D virtual reality system: Powerful enough for a gamer, made for an engineer

Posted: 19 Dec 2014 01:06 PM PST

It's like a scene from a gamer's wildest dreams: 12 high-definition, 55-inch 3-D televisions all connected to a computer capable of supporting high-end, graphics-intensive gaming. On the massive screen, images are controlled by a Wii remote that interacts with a Kinnect-like Bluetooth device (called SmartTrack), while 3-D glasses worn by the user create dizzying added dimensions.

Choreography of an electron pair

Posted: 18 Dec 2014 07:32 AM PST

The motion of the two electrons in the helium atom can be imaged and controlled with attosecond-timed laser flashes.

Blue-eyed humans have a single, common ancestor

Posted: 30 Jan 2008 02:03 PM PST

New research shows that people with blue eyes have a single, common ancestor. Scientists have tracked down a genetic mutation which took place 6,000-10,000 years ago and is the cause of the eye color of all blue-eyed humans alive on the planet today.

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