Tiny invention may harness big energy from small spores
(Phys.org)—One of Ozgur Sahin's first machines was a mechanical adding device made from Legos. He made it when he was 11 and hasn't stopped making gadgets since. In graduate school Sahin created an atomic ...
Jan 30, 2013
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Why are there redheads? Birds might hold the clues
Red coloration—historically seen as costly in vertebrates—historically seen as costly in vertebrates—might represent some physiological benefit after all, according to research published in the journal Physiological an ...
Jan 28, 2013
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Researchers solve complex problem in membrane biochemistry through study of amino acids
(Phys.org)—After years of experimentation, researchers at the University of Arkansas have solved a complex, decades-old problem in membrane biochemistry. The consequence of their work will give scientists more information ...
Jan 24, 2013
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A hidden genetic code: Researchers identify key differences in seemingly synonymous parts of the structure
Harvard scientists say they've solved a mystery that's nearly as old as science's understanding of the genetic code.
Jan 21, 2013
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Cell: Protein folding via charge zippers
Membrane proteins are the "molecular machines" in biological cell envelopes. They control diverse processes, such as the transport of molecules across the lipid membrane, signal transduction, and photosynthesis. ...
Jan 18, 2013
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Bubbling up organics in an ocean vent simulator
(Phys.org)—This week, fizzy ocean water and the alkaline fluid that bubbles up from deep ocean vents are coursing through a structure at NASA's Jet Propulsion Laboratory in Pasadena, Calif. that is reminiscent ...
Jan 17, 2013
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Amino acid studies may aid battle against citrus greening disease
Study shows stressed-out cells halt protein synthesis
(Phys.org)—Cells experience stress in multiple ways. Temperature shifts, mis-folded proteins and oxidative damage can all cause cellular stress. But whatever the form of the stress, all cells quickly stop ...
Jan 09, 2013
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Chinese medicine yields secrets: Atomic mechanism of 2-headed molecule derived from Chang Shan shown
The mysterious inner workings of Chang Shan—a Chinese herbal medicine used for thousands of years to treat fevers associated with malaria—have been uncovered thanks to a high-resolution structure solved ...
Dec 23, 2012
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Nutrient-sensing enzymes key to starvation response and survival in newborn mammals
A family of nutrient-sensing enzymes, dubbed Rag GTPases, modulates the activity of the mTORC1 protein complex, whose inhibition is essential for autophagy and survival in newborn mammals. One enzyme, RagA, has been found ...
Dec 23, 2012
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Two problems in chemical catalysis solved
The research group of Professor Petri Pihko at the Department of Chemistry and the NanoScience Center of the University of Jyväskylä has solved two acute problems in chemical catalysis. The research has ...
Dec 20, 2012
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Are bacteria making you hungry?
Over the last half decade, it has become increasingly clear that the normal gastrointestinal (GI) bacteria play a variety of very important roles in the biology of human and animals. Now Vic Norris of the University of Rouen, ...
Dec 19, 2012
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Achilles' heel of pathogenic bacteria discovered
Multidrug-resistant bacteria remain a major concern for hospitals and nursing homes worldwide. Propagation of bacterial resistance is alarming and makes the search for new antimicrobials increasingly urgent. Scientists at ...
Dec 17, 2012
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Rules devised for building ideal protein molecules from scratch
(Phys.org)—By following certain rules, scientists can prepare architectural plans for building ideal protein molecules not found in the real world. Based on these computer renditions, previously non-existent ...
Nov 29, 2012
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