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The patient's sight was restored through a two-step surgical procedure that involves cutting into the eye to take out the cloudy cornea and inserting a permanent, plastic cornea. The new cornea is sutured, or stitched, into place. The entire eye including the new, plastic cornea is then covered with tissue from the dog to help the eye heal from the surgery. Because of the tissue and the bandages, the...
Most female frogs don't call; most lack or have only rudimentary vocal cords. A typical female selects a mate from a chorus of males and then -- silently -- signals her beau. But the female concave-eared torrent frog, Odorrana tormota, has a more direct method of declaring her interest: She emits a high-pitched chirp that to the human ear sounds like that of a bird.
CALSTART, the advanced transportationtechnologies consortium, announced the winners of its Blue Sky Awards for 2008. The annual awards recognize marketplace contributions to clean air, energy efficiency and to the clean transportation industry overall by companies, organizations and individuals.
As microchips shrink, even tiny defects in the lines, dots and other shapes etched on them become major barriers to performance. Princeton engineers have now found a way to literally melt away such defects, using a process that could dramatically improve chip quality without increasing fabrication cost.
By Stein, Howard S THE FIELD OF TRAFFIC ENGINEERING/PLANNING IS UNIQUE WHEN COMPARED TO OTHER DISCIPLINES DUE TO THE INVOLVEMENT OF THE PUBLIC AND THEIR PERCEPTIONS. THIS FEATURE HIGHLIGHTS KEY LESSONS LEARNED FROM MANY YEARS OF WORKING FOR A WIDE RANGE OF CLIENTS AND COMMUNITIES.
Researchers from HP Labs have proven the existence of what had previously been only theorized as the fourth fundamental circuit element in electrical engineering. This scientific advancement could make it possible to develop computer systems that have memories that do not forget, do not need to be booted up, consume far less power and associate information in a manner similar to that of the human brain....
"Plays well with others." That popular phrase on a T-shirt is being taken to a whole new level in higher education these days, as experts in a variety of fields increasingly must work together to address some of society's biggest challenges, from a warming planet to cancer. Policy scientists are uncovering how scientists from different disciplines form working relationships. The findings will shed...
A new space mission, due to launch this month, is going to shed light on some of the most extreme astrophysical processes in nature -- including pulsars, remnants of supernovae, and supermassive black holes. It could even help us comprehend the origin and distribution of dark matter.
Russian and American scientists have discovered that the rising temperature of the world's largest lake, located in frigid Siberia, shows that this region is responding strongly to global warming.
Inspired by the mind-bending transportationtechnology in last year’s sleeper hit game Portal, this video clip uses digital augmented reality technology to produce a similar effect in the real world. Created by EmmanuelMFr of France’s Total Immersion, the illusions in the video really are reminiscent of those in the game...
Biochemists have discovered a new pathway by which the cell selectively degrades ribosomes. The pathway is called ribophagy and will probably mean new revisions for the textbooks. Ubiquitin makes it all possible. Ribosomes are the cell's translation engines. They use genetic information to build chains of amino-acids that afterwards fold to form proteins.
For the first time ever, the thread-like adhesive attachment organs of the bacterium Escherichia coli have been copied in a test tube. Biologists did this using purified proteins extracted from the bacteria and from which the pili are composed. The most important discoveries include a catalyst protein that greatly accelerates the assembly of the modules of the pili.
Scientists from Princeton University have found that one of the most intriguing phenomena in condensed-matter physics -- known as the quantum Hall effect -- can occur in nature in a way that no one has ever before seen. The 'quantum Hall-like effect' was found in a bulk material without an applied magnetic field. The work, while significant in a fundamental way, could also lead to advances in new kinds...
New research highlights emerging evidence that common viruses may contribute to the development of lung cancer. Experts agree that smoking is by far the most important factor that contributes to lung cancer development. But other factors can play a role in some cases.
A new emergency escape hood worthy of James Bond: a "one size fits all" concealable hood weighing under a pound, folding to the dimensions of a DVD case, and donnable in ten seconds, has been developed. Furthermore, the hood must be maintenance-free, filter nerve, blood, and blister agents, remove toxic industrial chemicals, and fit two-to-a-breast pocket -- one for the protectee, the other for the...
