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Kinks and curves at the nanoscale

One of the basic principles of nanotechnology is that when you make things extremely small—one nanometer is about five atoms wide, 100,000 times smaller than the diameter of a human hair—they are going to become more perfect.

Materials Science | Source: University of Vermont | Views: 16 | Comments: 0
New theory on genesis of osteoarthritis comes with successful therapy in mice

Scientists at Johns Hopkins have turned their view of osteoarthritis (OA) inside out. Literally. Instead of seeing the painful degenerative disease as a problem primarily of the cartilage that cushions joints, they now have evidence that the bone underneath the cartilage is also a key player and exacerbates the damage. In a proof-of-concept experiment, they found that blocking the action of a crit

Molecular Biology | Source: Johns Hopkins Medicine | Views: 19 | Comments: 0
Sea level influenced tropical climate during the last ice age

Scientists look at past climates to learn about climate change and the ability to simulate it with computer models. One region that has received a great deal of attention is the Indo-Pacific warm pool, the vast pool of warm water stretching along the equator from Africa to the western Pacific Ocean.

Geology | Source: University of Hawaii ‑ SOEST | Views: 22 | Comments: 0
RNA capable of catalyzing electron transfer on early earth with iron's help, study says

A new study shows how complex biochemical transformations may have been possible under conditions that existed when life began on the early Earth.

Chemistry | Source: Georgia Institute of Technology | Views: 22 | Comments: 0
Lovelorn frogs bag closest crooner

What lures a lady frog to her lover? Good looks, the sound of his voice, the size of his pad or none of the above? After weighing up their options, female strawberry poison frogs (Oophaga pumilio) bag the closest crooner they can, finds research in BioMed Central's open access journal Frontiers of Zoology. This seemingly short-sighted strategy turns out to be the optimal mate choice

Animal Behavior | Source: BioMed Central | Views: 26 | Comments: 0
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Lovelorn frogs bag closest crooner

What lures a lady frog to her lover? Good looks, the sound of his voice, the size of his pad or none of the above? After weighing up their options, female strawberry poison frogs (Oophaga pumilio) bag the closest crooner they can, finds research in BioMed Central's open access journal Frontiers of Zoology. This seemingly short-sighted strategy turns out to be the optimal mate choice

Animal Behavior | Source: BioMed Central | Views: 26 | Comments: 0
Women's reproductive ability may be related to immune system status

New research indicates that women's reproductive function may be tied to their immune status. Previous studies have found this association in human males, but not females.

Health | Source: University of Illinois at Urbana-Champaign | Views: 29 | Comments: 0
Study identifies new approach to improving treatment for MS and other conditions

Working with lab mice models of multiple sclerosis (MS), UC Davis scientists have detected a novel molecular target for the design of drugs that could be safer and more effective than current FDA-approved medications against MS.

Health | Source: University of California - Davis Health System | Views: 29 | Comments: 0
Now we know why old scizophrenia medicine works on antibiotics-resistant bacteria

In 2008 researchers from the University of Southern Denmark showed that the drug thioridazine, which has previously been used to treat schizophrenia, is also a powerful weapon against antibiotic-resistant bacteria such as staphylococci (Staphylococcus aureus).

Microbiology | Source: University of Southern Denmark | Views: 49 | Comments: 0
New discovery of ancient diet shatters conventional ideas of how agriculture emerged

Archaeologists have made a discovery in southern subtropical China which could revolutionise thinking about how ancient humans lived in the region.

Anthropology | Source: University of Leicester | Views: 187 | Comments: 0
Climate change may have little impact on tropical lizards

A new Dartmouth College study finds human-caused climate change may have little impact on many species of tropical lizards, contradicting a host of recent studies that predict their widespread extinction in a rapidly warming planet.

Environment | Source: Dartmouth College | Views: 105 | Comments: 0
Scientists capture first direct proof of Hofstadter butterfly effect

A team of researchers from several universities – including UCF –has observed a rare quantum physics effect that produces a repeating butterfly-shaped energy spectrum in a magnetic field, confirming the longstanding prediction of the quantum fractal energy structure called Hofstadter's butterfly.

Physics | Source: University of Central Florida | Views: 130 | Comments: 0
Artificial forest for solar water-splitting

In the wake of the sobering news that atmospheric carbon dioxide is now at its highest level in at least three million years, an important advance in the race to develop carbon-neutral renewable energy sources has been achieved. Scientists with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) have reported the first fully integrated nanosystem for artifici

Physics | Source: DOE/Lawrence Berkeley National Laboratory | Views: 110 | Comments: 0
High-testosterone competitors more likely to choose red

Why do so many sports players and athletes choose to wear the color red when they compete? A new study to be published in Psychological Science, a journal of the Association for Psychological Science, suggests that it may have to do with their testosterone levels.

Psychology | Source: Association for Psychological Science | Views: 103 | Comments: 0
New insights into how materials transfer heat could lead to improved electronics

U of T Engineering researchers, working with colleagues from Carnegie Mellon University, have published new insights into how materials transfer heat, which could lead eventually to smaller, more powerful electronic devices.

Technology | Source: University of Toronto Faculty of Applied Science & Engineering | Views: 91 | Comments: 0
Nanotechnology could help fight diabetes

Injectable nanoparticles developed at MIT may someday eliminate the need for patients with Type 1 diabetes to constantly monitor their blood-sugar levels and inject themselves with insulin.

Materials Science | Source: Massachusetts Institute of Technology | Views: 83 | Comments: 0
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