Thursday, February 23, 2012

Birds Sing Louder Amidst the Noise and Structures of the Urban Jungle

Sparrows, blackbirds and the great tit are all birds known to sing at a higher pitch in urban environments. It was previously believed that these birds sang at higher frequencies in order to escape the lower frequencies ...  > full story
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Heart Beats to the Rhythm of a Circadian Clock

Sudden cardiac death -- catastrophic and unexpected fatal heart stoppage -- is more likely to occur shortly after waking in the morning and in the late night. In a new study, an international consortium of researchers explains the molecular linkage between the ...  > full story
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NASA's Spitzer Finds Solid Buckyballs in Space

Astronomers using data from NASA's Spitzer Space Telescope have, for the first time, discovered buckyballs in a solid form in space. Prior to this discovery, the microscopic carbon spheres had been found only in gas form in the cosmos. ...  > full story
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Earth's Clouds Are Getting Lower, NASA Satellite Finds

Earth's clouds got a little lower -- about one percent on average -- during the first decade of this century, finds a new NASA-funded university study based on NASA satellite data. The results have potential implications for future global climate. ...  > full story
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Tiny, Implantable Medical Device Can Propel Itself Through Bloodstream

For 50 years, scientists had searched for the secret to making tiny implantable devices that could travel through the bloodstream. Engineers have now demonstrated a wirelessly powered device that just may make the ...  > full story
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Off Switch for Pain? Chemists Build Light-Controlled Neural Inhibitor

Pain? Just turn it off! It may sound like science fiction, but researchers have now succeeded in inhibiting pain-sensitive neurons on demand, in the laboratory. The crucial element in their strategy ...  > full story
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Recharge Your Cell Phone With a Touch? New Nanotechnology Converts Body Heat Into Power

Never get stranded with a dead cell phone again. A promising new technology called Power Felt, a thermoelectric device that converts body heat into an electrical current, soon could ...  > full story
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Neuroscientists Identify How the Brain Works to Select What We (Want To) See

If you are looking for a particular object -- say a yellow pencil -- on a cluttered desk, how does your brain work to visually locate it? For the first time, neuroscientists have identified how different neural regions ...  > full story
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Stratospheric Superbugs Offer New Source of Power

Bacteria normally found 30 kilometers above Earth have been identified as highly efficient generators of electricity. Bacillus stratosphericus -- a microbe commonly found in high concentrations in the stratosphere -- is a key component of a new ...  > full story
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Caught in the Act: Scientists Discover Microbes Speciating

Not that long ago in a hot spring in Kamchatka, Russia, two groups of genetically indistinguishable microbes decided to part ways. They began evolving into different species – despite the fact that they still encountered one ...  > full story
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Can Consuming Caffeine While Breastfeeding Harm Your Baby?

Babies are not able to metabolize or excrete caffeine very well, so a breastfeeding mother's consumption of caffeine may lead to caffeine accumulation and symptoms such as wakefulness and irritability, according to an ...  > full story

Living Well

Brain Makes Call on Which Ear Is Used for Cell Phone

A new study finds a strong correlation between brain dominance and the ear used to listen to a cell phone, with more than 70 percent of participants holding their cell phone up to the ear on the same side as their dominant ...  > full story

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Space & Time

Sheep in Wolf-Rayet's Clothing: New Image of Planetary Nebula Hen 3-1333

It's well known that the universe is changeable: even the stars that appear static and predictable every night are subject to change. A new image from the NASA Hubble Space Telescope shows planetary nebula Hen 3-1333. Planetary nebulae have nothing ...  > full story

Matter & Energy

Observing Single Atoms During Relaxation Toward Equilibrium

Scientists have succeeded for the first time in simulating the dynamic behavior of strongly correlated individual atoms in solids. They were able to string atoms in so-called optical lattices and observe their dynamic behavior, which is determined ...  > full story

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Thirsty Plants Text For Help

Interactive telecommunications researchers designed a soil-moisture sensor device that can allow a house plant to communicate with its owner. The. ...  > full story

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