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Here is your customized PHYSorg.com Newsletter for week 10:
Keys to long life: Longevity study unearths surprising answers
Cheer up. Stop worrying. Don't work so hard. Good advice for a long life? As it turns out, no. In a groundbreaking study of personality as a predictor of longevity, University of California, Riverside researchers found just the opposite.
Peaceful bonobos may have something to teach humans
Humans share 98.7 percent of our DNA with chimpanzees, but we share one important similarity with one species of chimp, the common chimpanzee, that we don't share with the other, the bonobo. That similarity is violence. While humans and the common chimpanzee wage war and kill each other, bonobos do not. "There has never been a recorded case in captivity or in the wild of a bonobo killing another bonobo," notes anthropologist Brian Hare.
Quantum engineers remove roadblock in developing next-generation technologies
(PhysOrg.com) -- An international team has removed a major obstacle to engineer quantum systems that will play a key role in the computers, communication networks, and even biomedical devices of the future.
Genetic analysis finds that modern humans evolved from southern Africa's Bushmen
A team of Stanford University scientists, using the largest-ever genetic analysis of remote tribal people, have determined that the human family tree is rooted in one of the world's most marginal and primitive people - the Bushmen of southern Africa.
New technology dramatically extends battery life for mobile devices
Technophiles who have been dreaming of mobile devices that run longer on lighter, slimmer batteries may soon find their wish has been granted.
Researchers question whether genius might be a result of hormonal influences
A longstanding debate as to whether genius is a byproduct of good genes or good environment has an upstart challenger that may take the discussion in an entirely new direction. University of Alberta researcher Marty Mrazik says being bright may be due to an excess level of a natural hormone.
Quantum no-hiding theorem experimentally confirmed for first time
(PhysOrg.com) -- In the classical world, information can be copied and deleted at will. In the quantum world, however, the conservation of quantum information means that information cannot be created nor destroyed. This concept stems from two fundamental theorems of quantum mechanics: the no-cloning theorem and the no-deleting theorem.
As we sleep, speedy brain waves boost our ability to learn (w/ Video)
(PhysOrg.com) -- Scientists have long puzzled over the many hours we spend in light, dreamless slumber. But a new study from the University of California, Berkeley, suggests we're busy recharging our brain's learning capacity during this traditionally undervalued phase of sleep, which can take up half the night.
Geminoid DK: An ultra-realistic android announced (w/ Video)
(PhysOrg.com) -- The uncanny valley is getting smaller every day. For those of you not familiar with that concept, the uncanny valley is a term, first coined by researchers in Japan, that explains the innate human ability to know when a humanoid robot is just not human, a creepy feeling. A new generation of ultra-realistic robots may make these distinctions harder to make.
Cassini finds Enceladus is a powerhouse
(PhysOrg.com) -- Heat output from the south polar region of Saturn's moon Enceladus is much greater than was previously thought possible, according to a new analysis of data collected by NASA's Cassini spacecraft. The study was published in the Journal of Geophysical Research on March 4.
Missing DNA helps make us human
A new study demonstrates that specific traits that distinguish humans from their closest living relatives – chimpanzees, with whom we share 96 percent of our DNA – can be attributed to the loss of chunks of DNA that control when and where certain genes are turned on. The finding mirrors accumulating evidence from other species that changes to regulatory regions of DNA – rather than to the genes themselves – underlie many of the new features that organisms acquire through evolution.
Bridgelux demonstrates silicon substrate LED that produces 135 lumens per watt
(PhysOrg.com) -- Silicon substrate LED's are cool, but you won't find them in your TV, or in the headlights of your car. They simply do not throw off enough light to be used in commercial applications. Or, at least they did not used to be able to.
Quake moved Japan by 8 feet: USGS
Japan's recent massive earthquake, one of the largest ever recorded, appears to have moved the island by about eight feet (2.4 meters), the US Geological Survey said.
Going to Earth's core for climate insights
(PhysOrg.com) -- The latest evidence of the dominant role humans play in changing Earth's climate comes not from observations of Earth's ocean, atmosphere or land surface, but from deep within its molten core.
Polar ice adding more to rising seas: study
(PhysOrg.com) -- The Greenland and Antarctic ice sheets are losing mass at an accelerating pace, according to a new NASA-funded satellite study. The findings of the study -- the longest to date of changes in polar ice sheet mass -- suggest these ice sheets are overtaking ice loss from Earth's mountain glaciers and ice caps to become the dominant contributor to global sea level rise, much sooner than model forecasts have predicted.
Laboratory-grown urethras implanted in patients, scientists report
Researchers at the Institute for Regenerative Medicine at Wake Forest University Baptist Medical Center and colleagues reported today on a new advance in tissue engineering. The team is the first in the world to use patients' own cells to build tailor-made urinary tubes and successfully replace damaged tissue.
Study explains why soggy skin gets wrinkly but does not dissolve
(PhysOrg.com) -- A new study by mathematicians in Australia has explained how skin remains stable in water and does not dissolve, and why it wrinkles and remains a strong barrier even after absorbing large quantities of water.
Mitsubishi Chemical Corp shows off an organic photovoltaic cell with 8.5% conversion efficiency
(PhysOrg.com) -- Mitsubishi Chemical Corp has created an organic photovoltaic (PV) cell that can boast a cell conversion efficiency of 8.5% and while that may not sound like a lot to those of us who do not study photovoltaic technology it, as a matter of fact, makes the organic photovoltaic cell created by the Japanese company the highest in efficiency currently in existence.
Japan quake causes day to get a wee bit shorter
You won't notice it, but the day just got a tiny bit shorter because of Friday's giant earthquake off the coast of Japan.
Extremely fast MRAM data storage within reach
Magnetic Random Access Memories (MRAM) are the most important new modules on the market of computer storage devices. Like the well known USB-sticks, they store information into static memory, but MRAM offer short access times and unlimited writing properties. Commercial MRAMs have been on the market since 2005. They are, however, still slower than the competitors they have among the volatile storage media.
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