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Tag: "hole" at biology news

Award-winning INEEL probe to help safely monitor hazardous waste sites

...oil. Then they lowered probes to the bottom of the hole and covered it with loose material such as sand. But installing GEOPS is almost as clean and simple as pushing a needle into an apple, Clark says. GEOPS' tough tip punctures the surface of the earth and slides easily through without disturbing the s...

Purdue research offers hope for canine, human spinal injuries

...ng bubbles with wands, the kind with a small round hole at the end," Borgens said. "The polymer acts like a soap film that covers the hole and draws the water away. In the PEG-sealed membrane, the fatty oils that form the center of the mem...

NASA's aura satellite sheds new light on air quality and ozone hole

...these will help us better understand how the ozone hole will react to future stratospheric cooling, which is expected as carbon dioxide levels continue to rise," said Aura Project Scientist Mark Schoeberl of NASA's Goddard Space Flight Center, Greenbelt, Md. Aura's instruments study tropospheric chemist...

Holes in fossil shells show effects of competition and evolution

...nction." Marine snails feed on clams by drilling a hole through the shell to reach the soft body inside. Using a rasping tongue and a cocktail of chemicals to drill through the wall of the shell takes several days, but under stress of competitive pressure, snails attack through the shell edge a faster, b...

Chemists create 'Superbowl' molecule; May lead to better health

... of four bromine atoms. The bromine atoms make the hole at the top of the molecule smaller, which makes it more difficult for things to pass in and out. This is ideal if you're trying to capture certain molecules and hold them until they're ready for release, the researcher says. Superbowl molecules are ...

Virginia Tech patents advance microprocessors, vaccines, vision, vibration control, more

...to pull the fluid to a specific site and close the hole in the retina. The patent is shared by VTIP and Dailey and licensed to NanoMedics. Phillips, a 1998 Ph.D. graduate in chemistry, is now with Luna Innovations of Blacksburg, Va. The patent, "Seaweed Supplement Diet for Enhancing Immune Response in Mam...

Heart Center cardiologist performs rare liver catheter intervention on teen

...th this particular device. "Sammy was born with a hole in his liver about the size of a garden hose that has caused him complicated health problems," said Dr. Henri Justino, an interventional cardiologist at Texas Children's Heart Center and an assistant professor of pediatrics at Baylor College of Medic...

Probing the promise and perils of nanoparticles

...teractions with living cells. "Just because we see hole formation in the model system doesn't mean that it...sis. But Hong's experiments suggest that nanoscale hole formation may be at least as important in allowing materials to travel through membranes. The work ...

At the molecular level, the predator is the prey

...er snake's evolutionary history, TTX infiltrates a hole on tsNa(V)1.4's surface, binding to an aromatic amino acid and causing enough of a change in the sodium channel's shape to impair its function. Three of the four Pacific Northwest snake populations the scientists examined have evolved some degree of ...

Now scientists think you'd be 'roasted' in a black hole

... a hot, dense plasma filling the core of the black hole and siphoning gradually into the singularity. Depe...be stretched out like spaghetti. For a small black hole with the mass of several suns, this should still be true. But for a supermassive black hole weighing...

Early Universe was packed with mini black holes

...were commonplace. "Matter accreting around a black hole heats up," he explains, "and this heating could be... merge, any asymmetry can send the resulting black hole flying off into space. "If this happened," says Haehnelt, "we might find the occasional galaxy with ...

Researchers drill historic hole in Atlantic Ocean floor

...A&M and one of the leaders of the project. The new hole - the third deepest ever drilled in the "basement"...ta of what the entire ocean crust looks like. This hole we've drilled is just one part of the big puzzle below the ocean floor." Miller said the 4,600-foot ...

Molecular spies illuminate drug resistance proteins

...ing to the protein caused the chamber, a pore-like hole in the protein, to close from the inside of the cell outwards. This traps a molecule, like a drug or toxin, inside the chamber. At about the same time, the external part of the chamber begins to open, which allows the trapped molecule to be expelled ...

One gene links newborn neurons with those that die in diseases such as Alzheimer's

...luding its RNA - comes with it, as if removed by a hole punch. After collecting, purifying, and amplifying the RNA from 3,500 cells for each bird, the researchers used a microarray created in the lab to find out which of the genes in the cells were turned on. This technique allowed them to identify which...

Cure for common cold will need to wiggle to work, scientists say

...in the protein, a cavity accessible only by a tiny hole that on first inspection looks too narrow even for...the compound is able to shimmy its way through the hole by twisting itself around," Post said. "If it gets stuck for a moment, it can twist its way through ...

Scientists journey to southern Africa to unravel the secret world of elephant communication

... they tended to clump together and leave the water hole sooner. But what's really interesting is that the unfamiliar anti-predator call from Kenya also caused them to clump up, get nervous and aggressively rumble--but they didn't necessarily leave. I didn't think it was going to be that clear cut." Conse...

Yale scientists identify structure for RNA quality control

...sfolded small RNAs. Unlike most proteins, Ro has a hole through the middle - and the hole is used in distinguishing these RNAs," said Reinisch. Mothers with anti-Ro antibodies often have bab...

Gram-negative bacteria shoot their way into cells

...ular "syringe" sticks out of the bacteria, pokes a hole in a nearby cell, and squirts in venomous proteins that hijack the cell's machinery. For the first time, Howard Hughes Medical Institute researchers have captured a detailed picture of the large doughnut-shaped base of the syringe barrel embedded in...

Vietnam war technology could aid elephant conservation

... geophone buried near a path leading to a watering hole in Namibia's Etosha National Park. Because of the differences in the size and frequency of animals' footfalls, the researchers could tell with 82% accuracy when elephants were passing the geophone and estimate the number of elephants passing the sens...

New method shows it is possible to grow bone for grafts within a patient's body

...er layer. They created the space by making a tiny hole in the periosteum and injecting saline water underneath. This loosened the layer from the underlying bone and inflated it slightly. When they had created a cavity the size and shape that they wanted, the researchers, Next, they removed the water and ...

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(Date:11/23/2009)...ty-associated strain of the deadly superbug MRSAan...on antibioticsposes a far greater health threat th...pitals, according to a study in the December issue...hreat is easily picked up in fitness centers, scho... overall burden of MRSA within hospitals, the repo...
(Date:11/23/2009)...- The time of day matters to forest trees dealing ... a research team led by Professor Malcolm Campbell...al for research and colleagues in the department o...s. , Capitalizing on their previous work to de...eam examined how poplar trees use their 45,000 gen...
(Date:11/23/2009)...60 participants gathered this week for the seventh... conference. This year,s topic, "Synthetic Biology...ical researchers to explore the engineering, scien...field of synthetic biology. , Bonnie L. Bassler,...rsity and this year,s conference chair, challenged...
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