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New genetic 'operating system' facilitated evolution of 'bilateral' animals

The evolution of worms, insects, vertebrates and other "bilateral" animals—those with distinct left and right sides—from less complex creatures like jellyfish and sea anemones with "radial" symmetry may have been facilitated by the emergence of a completely new "operating system" for controlling genetic instructions in the cell. read more

Low social support linked to poor health in young heart attack survivors

Having few friends, family and a general lack of social support is associated with poor health and quality of life and depression in young men and women a year after having a heart attack, according to new research in the Journal of the American Heart Association. read more

Bats' Lethal Error: Mistaking Turbines for Trees

Scientists trying to figure why tens of thousands of bats are killed by wind turbines each year think they've figured out a key piece of the puzzle: The bats think the turbines are trees, reports Nature World News. Using thermal and infra-red surveillance cameras, researchers discovered that the bats deliberately...

The cultural side of science communication

EVANSTON, Ill. --- Do we think of nature as something that we enjoy when we visit a national park and something we need to "preserve?" Or do we think of ourselves as a part of nature? A bird's nest is a part of nature, but what about a house? The answers to these questions reflect different cultural orientations. Show More Summary

How dinosaur arms turned into bird wings

Although we now appreciate that birds evolved from a branch of the dinosaur family tree, a crucial adaptation for flight has continued to puzzle evolutionary biologists. During the millions of years that elapsed, wrists went from straight to bent and hyperflexible, allowing birds to fold their wings neatly against their bodies when not flying. read more

Rating the planet's oceans

The most comprehensive assessment conducted by the Ocean Health Index rates the Earth's oceans at 67 out of 100 in overall health. In addition, for the first time, the report assessed the Antarctic and the 15 ocean regions beyond national...Show More Summary

Use of a 'virtual ward' model of care does not reduce hospital readmissions, risk of death

In a trial involving patients at high risk of hospital readmission or death, use of a virtual ward model of care (using some elements of hospital care in the community) after hospital discharge did not significantly reduce the rate of readmission or death up to a year following discharge, according to a study in the October 1 issue of JAMA. read more

What California can learn from the Australian drought experience

Guest essay by Eric Worrall- Back in the early 2000s, much of Australia was in the grip of a severe drought – so severe, that the climate community was making well publicised claims that the drought would never end. As a result of these scaremongering predictions, from people who claimed to have predictive skill, and…

This week from AGU: Measuring Antarctic ice loss, Indian Ocean program, Oregon landslides

This week from AGU: Measuring Antarctic ice loss, Indian Ocean program, Oregon landslides From AGU's blogs: Scientists use fiber-optic cables to measure ice loss in Antarctic read more

Ultrafast remote switching of light emission

The researchers etched a photonic crystal around several quantum dots in a semiconductor layer. Quantum dots are small structures that spontaneously emit light as a consequence of atomic processes. If a short laser pulse is fired atShow More Summary

Developing countries should enroll medical and nursing students from rural areas

Nearly one third of medical and nursing students in developing countries may have no intention of working in their own countries after graduation, while less than one fifth of them intend to work in rural areas where they are neededShow More Summary

Researchers show EEG's potential to reveal depolarizations following TBI

CINCINNATI—The potential for doctors to measure damaging "brain tsunamis" in injured patients without opening the skull has moved a step closer to reality, thanks to pioneering research at the University of Cincinnati (UC) Neuroscience Institute. read more

Improving babies' language skills before they're even old enough to speak

In the first months of life, when babies begin to distinguish sounds that make up language from all the other sounds in the world, they can be trained to more effectively recognize which sounds "might" be language, accelerating the development of the brain maps which are critical to language acquisition and processing, according to new Rutgers research. read more

NASA's Swift mission observes mega flares from a mini star

On April 23, NASA's Swift satellite detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star. The initial blast from this record-setting series of explosions was as much as 10,000 times more powerful than the largest solar flare ever recorded. read more

NASA's HS3 looks Hurricane Edouard in the eye

NASA and NOAA scientists participating in NASA's Hurricane and Severe Storms Sentinel (HS3) mission used their expert skills, combined with a bit of serendipity on Sept. 17, 2014, to guide the remotely piloted Global Hawk over the eye...Show More Summary

First comprehensive meshfree numerical simulation of skeletal muscle tissue achieved

Engineers at the University of California, San Diego, have completed the first comprehensive numerical simulation of skeletal muscle tissue using a method that uses the pixels in an image as data points for the computer simulation—a method known as mesh-free simulation. The researchers, led by J.S. Show More Summary

'Virtual breast' could improve cancer detection

Next to lung cancer, breast cancer is the leading cause of cancer death in women, according to the American Cancer Society. That's why so many medical professionals encourage women to get mammograms, even though the tests are imperfect...Show More Summary

Study shows how chimpanzees share skills

Evidence of new behaviour being adopted and transmitted socially from one individual to another within a wild chimpanzee community is publishing on September 30 in the open access journal PLOS Biology. This is the first instance of social learning recorded in the wild. read more

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