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The Lead

Train Your Brain to Want Healthy Food

September 2, 2014 | by Tufts Univ. | News | Comments

It may be possible to train the brain to prefer healthy, low-calorie foods over unhealthy higher-calorie foods. A brain scan study in adult men and women suggests that it is possible to reverse the addictive power of unhealthy food while also increasing preference for healthy foods.

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Laser Instantly Stops Molecular Tumbling Motion

September 2, 2014 2:00 pm | by Northwestern Univ. | News | Comments

Scientists have figured out an elegant way to stop a molecule from tumbling so that its potential for new applications can be harnessed: shine a single laser on a trapped molecule and it instantly cools to the temperature of outer space, stopping the rotation of the molecule.

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Study: Cave Art Made by Neanderthals

September 2, 2014 2:00 pm | by Associated Press, Frank Jordans | News | Comments

A series of lines scratched into rock in a cave near the southwestern tip of Europe could be proof that Neanderthals were more intelligent and creative than previously thought.

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Coffee Ups Prediabetes Risk in Young Adults

September 2, 2014 2:00 pm | by European Society of Cardiology | News | Comments

Coffee increases the risk of prediabetes in young adults with hypertension who are slow caffeine metabolizers, according to results from a study that found people who drank more than three cups of coffee per day doubled their risk of prediabetes.

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Corals are Nature’s Engineers

September 2, 2014 2:00 pm | by MIT, David Chandler | News | Comments

Conventional wisdom has long held that corals are passive organisms that rely entirely on ocean currents to deliver dissolved substances, such as nutrients and oxygen. Now, scientists have found that they are far from passive, engineering their environment to sweep water into turbulent patterns that greatly enhance their ability to exchange nutrients and dissolved gases with their environment.

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U.S. Eating Habits Improve in the Wealthy

September 2, 2014 2:00 pm | by Associated Press, Lindsey Tanner | News | Comments

Americans' eating habits have improved— except among the poor, evidence of a widening wealth gap when it comes to diet. Yet even among wealthier adults, food choices remain far from ideal, a 12-year study found.

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Sensors Detect Individual Nanoparticles

September 2, 2014 2:00 pm | by Washington Univ. in St. Louis | News | Comments

Nanoparticles, engineered materials about a billionth of a meter in size, are around us every day. Although they are tiny, they can benefit human health, as in some innovative early cancer treatments; but they can also interfere with it through viruses, air pollution, traffic emissions, cosmetics, sunscreen and electronics.

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Action-packed TV Linked to Increased Snacking

September 2, 2014 2:00 pm | by Associated Press, Lindsey Tanner | News | Comments

Could action-packed TV fare make you fat? That's the implication of a new study that found people snacked more watching fast-paced television than viewing a more leisurely paced talk show.

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Food Prices Rise in Ebola-hit Countries

September 2, 2014 8:20 am | by Associated Press | News | Comments

Food in countries hit by Ebola is getting more expensive and will become scarcer because many farmers won't be able to access fields, a U.N. food agency warned today.

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Chefs, Breeders Team for Tasty Veggies

September 2, 2014 8:16 am | by Associated Press, M.L. Johnson | News | Comments

There's a good chance that many of the suddenly trendy vegetables that foodies latch on to in the next decade will benefit from research at the Univ. of Wisconsin-Madison. While plant breeders at many public universities focus on improving field corn, soybeans and other crops used in food manufacturing or livestock feed, those in Madison want to produce better-tasting vegetables.

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Research Yields Light Sources for Quantum Tech

September 2, 2014 7:00 am | by Univ. of Copenhagen | News | Comments

Electronic circuits are based on electrons, but one of the most promising technologies for future quantum circuits are photonic circuits. First, it is necessary to be able to create a stream of single photons and control their direction. Now, scientists have succeeded in creating a steady stream of photons emitted one at a time and in a particular direction.

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Bacteria Can Distinguish Harmful vs. Helpful Viruses

September 2, 2014 7:00 am | by Rockefeller Univ. | News | Comments

Scientists have assumed the bacterial version of an immune system would robotically destroy anything it recognized as invading viral genes. However, new experiments have now revealed that one variety of the bacterial immune system can distinguish viral foe from friend. And, the researchers report, it does so by watching for one particular cue.

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Near-simultaneous Earthquakes Complicate Planning for Italy

September 2, 2014 7:00 am | by Seismological Society of America | News | Comments

Before the shaking from one earthquake ends, shaking from another might begin, amplifying the effect of ground motion. Such sequences of closely timed, nearly overlapping, consecutive earthquakes account for devastating seismic events in Italy's history and should be taken into account when building new structures.

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Some Phytoplankton Don't Need to Take Their Vitamins

September 2, 2014 7:00 am | by Canadian Institute for Advanced Research | News | Comments

Some species of marine phytoplankton, such as the prolific bloomer Emiliania huxleyi, can grow without consuming vitamin B1, researchers have discovered. The finding contradicts the common view that E. huxleyi and many other eukaryotic microbes depend on scarce supplies of thiamine in the ocean to survive.

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Image of the Week: Antarctic Sea-level Rising Faster than Average

September 2, 2014 7:00 am | by Univ. of Southampton | News | Comments

A new study of satellite data from the last 19 years reveals that fresh water from melting glaciers has caused the sea-level around the coast of Antarctica to rise by two centimeters more than the global average of six centimeters.

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Research Finds Why Sibling Stars Look Alike

September 2, 2014 7:00 am | by UC Santa Cruz | Videos | Comments

The chemical uniformity of stars in the same cluster is the result of turbulent mixing in the clouds of gas where star formation occurs, according to a study by astrophysicists. Their results show that even stars that don't stay together in a cluster will share a chemical fingerprint with their siblings, which can be used to trace them to the same birthplace.

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