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Peptides control crystal growth with 'switches, throttles and brakes'

Peptides control crystal growth with 'switches, throttles and brakes'

Nanotechnology / Bio & Medicine

created Nov 23, 2009 | popularity 4.8 / 5 (5) | comments 0

(PhysOrg.com) -- By producing some of the highest resolution images of peptides attaching to mineral surfaces, scientists have a deeper understanding how biomolecules manipulate the growth crystals. This research ...


Computational microscope peers into the working ribosome

Computational microscope peers into the working ribosome (w/ Video)

Biology / Cell & Microbiology

created Nov 23, 2009 | popularity 4.9 / 5 (9) | comments 2

Two new studies reveal in unprecedented detail how the ribosome interacts with other molecules to assemble new proteins and guide them toward their destination in biological cells. The studies used molecular ...


moa

Extinct moa rewrites New Zealand's history

Other Sciences / Archaeology & Fossils

created Nov 18, 2009 | popularity 4.6 / 5 (5) | comments 1

(PhysOrg.com) -- The evolutionary history of New Zealand's many extinct flightless moa has been re-written in the first comprehensive study of more than 260 sub-fossil specimens to combine all known genetic, ...


Words, gestures are translated by same brain regions, says new research

Medicine & Health / Neuroscience

created Nov 09, 2009 | popularity 4.6 / 5 (5) | comments 0

Your ability to make sense of Groucho's words and Harpo's pantomimes in an old Marx Brothers movie takes place in the same regions of your brain, says new research funded by the National Institute on Deafness and Other Communication ...


Scientists successfully reprogram blood cells

Biology / Cell & Microbiology

created Nov 09, 2009 | popularity 5 / 5 (6) | comments 0

Researchers have transplanted genetically modified hematopoietic stem cells into mice so that their developing red blood cells produce a critical lysosomal enzyme -preventing or reducing organ and central nervous system damage ...


1930s drug slows tumor growth

Medicine & Health / Medications

created Nov 06, 2009 | popularity 4.7 / 5 (10) | comments 1

Drugs sometimes have beneficial side effects. A glaucoma treatment causes luscious eyelashes. A blood pressure drug also aids those with a rare genetic disease. The newest surprise discovered by researchers at the Johns ...


Wolves, moose and biodiversity: An unexpected connection

Wolves, moose and biodiversity: An unexpected connection

Biology / Ecology

created Nov 02, 2009 | popularity 4.9 / 5 (7) | comments 4

Moose eat plants; wolves kill moose. What difference does this classic predator-prey interaction make to biodiversity?


mosquito

Researchers identify dominant chemical that attracts mosquitoes to humans

Chemistry / Biochemistry

created Oct 26, 2009 | popularity 4.8 / 5 (18) | comments 5

Scientists at the University of California, Davis, have identified the dominant odor naturally produced in humans and birds that attracts the blood-feeding Culex mosquitoes, which transmit West Nile virus ...


Scientists discover gene that 'cancer-proofs' rodent's cells

Scientists discover gene that 'cancer-proofs' rodent's cells

Biology / Biotechnology

created Oct 26, 2009 | popularity 5 / 5 (47) | comments 13

(PhysOrg.com) -- Despite a 30-year lifespan that gives ample time for cells to grow cancerous, a small rodent species called a naked mole rat has never been found with tumors of any kind—and now biologists ...


Fish vision discovery makes waves in natural selection

Fish vision discovery makes waves in natural selection

Biology / Evolution

created Oct 16, 2009 | popularity 5 / 5 (8) | comments 1

Emory University researchers have identified the first fish known to have switched from ultraviolet vision to violet vision, or the ability to see blue light. The discovery is also the first example of an ...


A 200,000-year-old cut of meat

A 200,000-year-old cut of meat

Other Sciences / Archaeology & Fossils

created Oct 14, 2009 | popularity 4.2 / 5 (13) | comments 1

Contestants on TV shows like Top Chef and Hell's Kitchen know that their meat-cutting skills will be scrutinized by a panel of unforgiving judges. Now, new archaeological evidence is getting the same scrutiny ...


Like humans, monkeys fall into the 'uncanny valley'

Like humans, monkeys fall into the 'uncanny valley'

Biology / Plants & Animals

created Oct 13, 2009 | popularity 4.4 / 5 (18) | comments 1

(PhysOrg.com) -- Princeton University researchers have come up with a new twist on the mysterious visual phenomenon experienced by humans known as the "uncanny valley." The scientists have found that monkeys ...


Researchers discover RNA repair system in bacteria

Biology / Cell & Microbiology

created Oct 12, 2009 | popularity 4.7 / 5 (6) | comments 0

In new papers appearing this month in Science and the Proceedings of the National Academy of Sciences, University of Illinois biochemistry professor Raven H. Huang and his colleagues describe the first RNA repair system to be ...


Team Finds Unexpected Hydrides Become Stable Metals at Pressure Near One Quarter Required to Metalize Pure Hydrogen Alone

Unexpected Hydrides Become Stable Metals at Pressure Near One Quarter Required to Metalize Pure Hydrogen Alone

Physics / Condensed Matter

created Oct 12, 2009 | popularity 4.8 / 5 (11) | comments 2

(PhysOrg.com) -- From detailed assessments of electronic structure, researchers at the University at Buffalo, Cornell University, Stony Brook University and Moscow State University discovered that unexpected ...


Scans show learning 'sculpts' the brain's connections

Medicine & Health / Neuroscience

created Oct 09, 2009 | popularity 4.8 / 5 (6) | comments 1

Spontaneous brain activity formerly thought to be "white noise" measurably changes after a person learns a new task, researchers at Washington University School of Medicine in St. Louis and the University of Chieti, Italy, ...