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Not all scientists are great at sharing

Astronomers and geneticists are good at sharing, report researchers, who say ecologists may need a brush-up on the concept.

When hospitals merge, patients often pay the price

While more and more US hospitals are consolidating medical groups and physician practices to be more efficient, a new study finds the practice often backfires and increases the cost of patient care.

Does toxic air raise a child’s risk for autism?

Children exposed to certain types of air pollution during pregnancy and early in life are more likely to develop autism, according to a study of families living in Pennsylvania.

Scientists are skeptical of ‘brain games’ for older adults

Nearly 70 scientists have issued a statement saying they’re skeptical about claims that computer-based “brain games” actually help older adults sharpen their mental powers.

Feathers have ‘custom’ shafts for flight

The shafts of feathers are made of a multi-layered fibrous composite material—a lot like carbon fiber—that lets the feather bend and twist in flight.

Teens who eat a hearty breakfast skip the snacks

Teenagers who eat breakfast, particularly one high in protein, are less likely to crave junk food later, and scientists say a boost in the brain chemical dopamine may help explain why.

Overweight women less likely to work with public

Overweight women are more likely to work in lower-paying and more physically demanding jobs, according to a new study.

The plague hitches a ride to travel the body

An ancient scourge is giving scientists new insights on how the body responds to infections. In the journal Immunity, researchers show how the Yersinia pestis bacteria that cause bubonic plague hitchhike on immune cells in the lymph nodes and eventually ride into the lungs and the blood stream, where the infection is easily transmitted to others.

How black holes stop galaxies from making stars

New evidence could help explain how some massive black holes shut down a galaxy’s ability to make new stars.

Rest your mind the right way to boost learning

Scientists have previously found that resting the mind, such as daydreaming, helps strengthen memories of events and retention of information.

Milk fat detector uses fluorescent dye

Scientists are building a fluorescent sensor that can rapidly identify the presence of fat in milk. The device, called “Milk Orange,” could one day be useful to milk producers in developing countries.

Super high-res MRI detects single atom

For the first time, researchers have detected a single hydrogen atom using high-resolution magnetic resonance imaging (MRI).

Diabetes may raise risk for heart valve disease

There appears to be a link between high blood sugar and heart valve hardening. Scientists discovered that feeding cells that support heart valves too much glucose slows the cells down.

Different squid evolved to glow in similar way

New research with cephalopods offers a preliminary answer to the question of whether of evolution is predictable.

Everybody gains when larvae ‘follow the leader’

If insect larvae follow a leader while foraging for food, both the leaders and their followers grow much faster than if the group is all followers or all leaders.

Therapy cures hearing loss from loud noises

Scientists restored hearing to mice that were partly deafened by noise. They did it by increasing a key protein in their ears.

Weird interior of Saturn’s moon makes it wobble

A slight wobble detected in Saturn’s moon Mimas suggests its icy surface is covering either an odd-shaped rocky core or a sloshing ocean.

Tiniest particles melt and then turn into ‘Jell-O’

The fact that microscopic particles known as polymers and colloids will melt as temperatures rise was no surprise to scientists.

Why some ‘green’ buildings have stinky water

Cost and environmental impact are two reasons to install plastic pipes in buildings, but research shows they can put chemicals in drinking water and cause unpleasant odors.

Aches after exercise might predict chronic pain

Scientists know that exercise helps the body tolerate pain. But some feel more benefits than others. A new study reports that rats displaying the least sensitivity after running on a treadmill are also less likely to develop pain after a nerve injury.