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Tag: "cuts" at biology news

Now, self-healing materials can mimic human skin, healing again and again

...l cracks in the epoxy coating – analogous to small cuts in skin,” Sottos said. “The next step is to extend the design to where the network can heal ‘lacerations’ that extend into the material’s substrate.”...

Antarctic icebergs -- Hotspots of ocean life

...ll Sea, an arm of the Southern Atlantic Ocean that cuts into the Antarctic continent southeast of Cape Horn. The icebergs in the study were up to a dozen miles long and more than 120 feet high, with one extending nearly 1,000 feet into the depths. Despite the risks of getting close to these mountains ...

Anthrax paralyzes immune cells with lethal toxin, UF research shows

...utting the gas to the motor." Anthrax literally cuts the gas line. The toxin works like a pair of scissors, snipping off the ends of a key protein and preventing the transmission of messages within the cell. As a result, immune cells never receive the green light to assemble the actin motor, Southwick'...

High-dose anticlotting drug cuts heart attack, death risk in half

...st before percutaneous coronary intervention (PCI) cuts the combined risk of heart attack and cardiac death by half, according to a study reported at the 30th Annual Scientific Sessions of the Society for Cardiovascular Angiography and Interventions (SCAI), May 9?2, 2007, in Orlando, FL. Researchers fou...

DNA analysis suggests under-reported kills of threatened whales

.... They initially expected to find that many of the cuts of meat they purchased would come from a small number of whales, but when they used DNA profiling or "fingerprinting" they discovered that their 289 samples came from 205 different whales. Since the government of South Korea reported to the IWC ju...

Bones in motion: Brown scientists to create new 3-D X-ray system

...hics and scientific visualization. The project cuts across disciplines and brings together a diverse team of Brown researchers. They include bioengineer Joseph Crisco, computer scientist David Laidlaw, orthopedic experts Braden Fleming and Douglas Moore, and biologists Stephen Gatesy, Thomas Roberts a...

Study finds surfing safer than soccer

... their own or another surfer's. "The fact that cuts were found to be less common among surfers during a competition makes sense since it's a more controlled environment compared to a recreational surfing-type atmosphere. In competitions, there are a limited number of surfers in the water during each h...

McBride shows DNA detective work with paper-eating bacteria that 'glide'

...iciently break down cellulose," he says. "One type cuts the long carbohydrate molecule through the middle, while another chews small pieces from the ends." Not so with C. hutchinsonii. Although it efficiently digests cellulose, in DNA analysis it appears to be lacking one of the usual enzymes, suggesti...

MU researcher placing eye implants in cats to help humans see

...ats. During the surgery, Narfstrom makes two small cuts into the sclera, the outer wall of the eyeball. After removing the vitreous, which is the gelatinous fluid inside the back part of the eyeball, Narfstrom creates a small blister in the retina and a small opening, large enough for the micr...

Selecting life: Scientists find new way to search for origin of life

...mmented Hazen. "In many ways, Hazen's approach cuts to the chase of addressing this problem," said Patricia Dove, professor of geochemistry at Virginia Tech. "By adapting the microarray approach from molecular biology, his research group can identify up to one million types of biomolecules very quickl...

Scientists discover toxin that causes gastro disease

...rointestinal tract. "It is unique because it cuts an essential component of the cell machinery in half, therefore disabling it," he said. As well as learning how the toxin works, the scientists have also determined its three-dimensional structure, which will aid in the development of treatments...

New system could drastically reduce herbicide use

...layers to the device, according to Tian. One layer cuts the weed, while the second layer applies herbicide...nt, have worked steadily on the system design that cuts the weed and applies herbicide. They have also mounted the curved solar panel that powers the robot....

Jefferson scientists find high glucose before surgery raises risk of dangerous complications

...are units. Tightening glucose control dramatically cuts those risks, as well as reduces hospital stays. Because the current study was retrospective, Dr. Mraovic says, drawing firm conclusions from the results can be difficult. The findings need to be confirmed in a randomized, prospective trial. He w...

Other patients bear the real cost of Herceptin

...rovides no extra funding and does not suggest what cuts should be made to release this extra money. This leaves medical staff with difficult decisions to make. Doctors at the Norfolk and Norwich University Hospital NHS Trust and the University of East Anglia calculated that they will have to find £1.9m...

Plant protection from cold decoded

...HOS1), acts essentially as a biochemical gate that cuts off the plant's cold protection, Zhu said. The HOS1 gene product interacts with another gene product known as ICE1 that kicks off the genetic cascade that provides the plant's cold protection proteins, according to the paper. The interaction worked b...

New strategy rapidly identifies cancer targets

...mutations. The process is highly technical, but it cuts the time needed to find a faulty gene by months. "If you try to sift through DNA, it takes almost a year," said Druker. "This technique takes a couple of months and further automation would make it even quicker." So quick, in fact, that Druker env...

Schepens scientists are first to discover angiogenesis switch inside blood vessel cells

...am also found that when PLCg acts on the lipid, it cuts the lipid in two, thus preventing PI3K from using that very same lipid to promote vessel growth. Instead, they learned, the resulting two halves of the lipid trigger a series of signaling activities that caused vessels to regress and disappear. Th...

Internal body clock dictates timing of different types of stroke

...ors. Sleep lowers blood pressure in the body, so cuts the risk of stroke, but low blood pressure is a risk factor for cerebral infarction, say the authors....

Inflammation and drugs to control this activity studied in a variety of tumors sites

Inflammation cuts both ways. When invaded by an infectious agent, for example, the body calls on the forces of inflammation to fight and defeat the intruder. But when the biochemical processes of the immune system are either misdirected or chronically turned on, infla...

Possible brain hormone may unlock mystery of hibernation

...ents that block HP activity in the animals' brains cuts hibernation short. "One of the most curious biological phenomena in mammals is their ability to hibernate circannually, which allows them to survive unusually low body temperatures at or near freezing," said study author Takashi Ohtsu of Kanagawa Ac...

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