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Paper is Sensitive Chemical, Biological Detector

October 17, 2014 7:00 am | by AVS: Science & Technology of Materials, Interfaces, and Processing | News | Comments

Using a common laboratory filter paper decorated with gold nanoparticles, researchers have created a unique platform, known as “plasmonic paper,” for detecting and characterizing even trace amounts of chemicals and biologically important molecules— from explosives, chemical warfare agents and environmental pollutants to disease markers.

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Flies Can Help Sniff Out Drugs, Bombs

October 17, 2014 7:00 am | by Univ. of Sussex | News | Comments

Fruit flies can identify odors from illicit drugs and explosive substances almost as accurately as wine odor, which the insects are naturally attracted to because it smells like their favorite food, fermenting fruit.

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Soda ‘Mileage’ Signs Help Teens Pick Better Drinks

October 17, 2014 7:00 am | by Johns Hopkins Univ. Bloomberg School of Public Health | News | Comments

Adolescents who saw printed signs explaining the number of miles they would need to walk to burn off the calories in a sugary drink were more likely to leave the store with a lower calorie beverage, a healthier beverage or a smaller size beverage. And those healthier choices persisted weeks after the signs came down.

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Inexplicable Signal Offers Clue on Mysterious Dark Matter

October 16, 2014 2:00 pm | by Univ. of Leicester | News | Comments

Scientists have detected a curious signal in the X-ray sky– one that provides a tantalizing insight into the nature of mysterious Dark Matter. The team has found what appears to be a signature of axions, predicted Dark Matter particle candidates– something that has been a puzzle to science for years.

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Interest in Faces Linked to More Empathy

October 16, 2014 2:00 pm | by King’s College London | News | Comments

Scientists have found that an infant’s preference for a person’s face, rather than an object, is associated with lower levels of callous and unemotional behaviors in toddlerhood.

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International Effort Needed to Protect Important Footprints

October 16, 2014 2:00 pm | by Univ. of Colorado Denver | News | Comments

An international team of advisors is dedicated to creating a museum complex in Tanzania showcasing perhaps the most important collection of hominin footprints in the world today.

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Catalyst May Improve Biofuels

October 16, 2014 2:00 pm | by Washington State Univ. | News | Comments

Researchers have developed a new catalyst, by mixing inexpensive iron with a tiny amount of rare palladium, which could lead to making biofuels cheaply and more efficiently.

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Facebook To Relay Safety Messages After Natural Disasters

October 16, 2014 2:00 pm | by Associated Press | News | Comments

Facebook is launching a tool that lets users notify friends and family that they are safe during or after natural disasters. The tool, called "Safety Check," will be available worldwide to the social network's 1.32 billion users on computers and mobile devices.

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Engineers Lose to Win Laser Performance

October 16, 2014 2:00 pm | by Washington Univ. in St. Louis | News | Comments

To help laser systems overcome loss, operators often pump the system with an overabundance of photons, or light packets, to achieve optical gain. But now, engineers have shown a new way to reverse or eliminate such loss by, ironically, adding loss to a laser system to actually reap energy gains. In other words, they’ve invented a way to win by losing.

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Find May Help Treat Age-related Diseases

October 16, 2014 2:00 pm | by Stowers Institute for Medical Research | News | Comments

Patients with Parkinson's disease, cardiovascular disease and cystic fibrosis have something in common: cells in their disease-affected tissues may produce misfolded proteins that are incapable of functioning. Now, scientists have found where the misfolded proteins clump together in a cell, and how the cell can prevent the passage of these defective molecules to its daughter cell.

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Jet Lag Linked to Obesity

October 16, 2014 2:00 pm | by Cell Press | News | Comments

Gut microbes in mice and humans have circadian rhythms that are controlled by the biological clock of the host in which they reside. Disruption of the circadian clock in the host alters the rhythms and composition of the microbial community, leading to obesity and metabolic problems.

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Malaria is Shaping the Human Genome

October 16, 2014 7:00 am | by The Univ. of Western Australia | News | Comments

For millennia, malaria has been a major killer of children in Africa and other parts of the world. In doing so, it has been a major force of evolutionary selection on the human genome.

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Changing Your Gait Can Change Your Mood

October 16, 2014 7:00 am | by Canadian Institute for Advanced Research | News | Comments

Our mood can affect how we walk— slump-shouldered if we're sad, bouncing along if we're happy. Now, researchers have shown it works the other way too— making people imitate a happy or sad way of walking actually affects their mood.

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Milky Way Ransacks Nearby Galaxies, Steals Star-forming Gas

October 16, 2014 7:00 am | by National Radio Astronomy Observatory | News | Comments

Astronomers have discovered that our nearest galactic neighbors— the dwarf spheroidal galaxies— are devoid of star-forming gas, and that our Milky Way Galaxy is to blame. New radio observations reveal that within a well-defined boundary around our Galaxy, dwarf galaxies are completely devoid of hydrogen gas; beyond this point, dwarf galaxies are teeming with star-forming material.

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Chimpanzees Have Favorite Tools for Hunting Food

October 16, 2014 7:00 am | by Univ. of Cambridge | Videos | Comments

West African chimpanzees will search far and wide to find Alchornea hirtella, a spindly shrub whose straight shoots provide the ideal tools to hunt aggressive army ants in an ingenious fashion. The plant provides the animals with two different types of tool, a thicker shoot for digging and a more slender tool for dipping.

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