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Tag: "inch" at biology news

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

...microchip 2mm in diameter and one-thousandth of an inch thick, less than the thickness of a human hair. Four patients had surgery Tuesday, January 25. The fifth patient is scheduled for a later date. Rush principal investigator Dr. John Pollack performed the surgeries with Dr. Kirk Packo, Dr. Pauline Me...

Ophthalmologists implant five patients with artificial silicon retina microchip

...microchip 2mm in diameter and one-thousandth of an inch thick, less than the thickness of a human hair. Four patients had surgery Tuesday, January 25. The fifth patient is scheduled for a later date. Rush principal investigator Dr. John Pollack performed the surgeries with Dr. Kirk Packo, Dr. Pauline Me...

Advancements In Genomics Foster Deep Sea Discoveries

...ng temperatures and up to 15,000 pounds per square inch of “skull-crushing?pressure. Scientists say precious information lies in discovering how organisms have adapted and evolved to such conditions. Bartlett and his colleagues probed the genetic makeup of Photobacterium profundum, a bacterium that copes...

Certain fish have a special mating preference

...studies on mosquitofish (guppy-like fish, about an inch long) and found that female mosquitofish spend 80 percent more time with males who have a large gonopodium. "A male with a larger gonopodium has a higher chance of mating, but in a predator environment he has a higher probability of dying," Langerha...

IMF Launches World’s First DNA Database for Myeloma Patients

...studies on mosquitofish (guppy-like fish, about an inch long) and found that female mosquitofish spend 80 percent more time with males who have a large gonopodium. "A male with a larger gonopodium has a higher chance of mating, but in a predator environment he has a higher probability of dying," Langerha...

New tool reveals secrets of migrating cells

...eeliners moving nearly two centimeters - almost an inch - per hour, which is fast in the realm of cell mov.../10 of a millimeter or more than a hundredth of an inch deep. In the current study, Witt limited her viewing to about 200 microns, though she says in some t...

Trio of plant genes prevent 'too many mouths'

...out of action ?the researchers got dwarf plants an inch high instead of the normal 1½ feet. Surprisingly the plants also were so densely covered with stomata that most stomata were touching each other. These genes appear to have roles at two points in the production of stomata. First, they inhibit undiff...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

... liposome nanoparticle roughly one millionth of an inch across with antibodies peppering the surface that can home in on tumor cells wherever they spread in the body. The liposome encapsulates the p53 gene, which makes a protein that helps initiate a self-destruct process called apoptosis in cells with ge...

New U. of Colorado at Boulder flu chip may help combat future epidemics, pandemics

...A. Each spot is approximately one-hundredth of an inch in diameter. The microarray is then immersed in a wash of influenza gene fragments obtained from the fluid of an infected individual. RNA fragments from the infected fluid bind to specific DNA segments on the microarray like a key in a lock, indic...

New technique puts brain-imaging research on its head

... are asked to raise and lower their heads about an inch inside an MRI machine. The process is repeated several times as the MRI pieces together a complete movie of the brain's response to these skull motions. "Phil (Bayly) has developed a set of state-of-the-art hardware and software to synchronize and ...

'Virus chip' detects new virus in prostate tumors

...ioinformatics, but in essence it is a simple 3 x 1 inch glass microscope slide. Onto the slide the scientists robotically deposit 10 to 12 different DNA sequences from all known viruses. Each sample appears as a microscopic dot, about a tenth of a millimeter in diameter –giving it the name micoroarray. ...

Rice bioengineers pioneer techniques for knee repair

...hstand up to an astounding 2,400 pounds per square inch of compressive pressure. ...

Junk DNA may not be so junky after all

... scale studies. They are small - only about a half inch in length - they grow quickly, and are relatively inexpensive to maintain compared to mice or rats. "Zebrafish are the only vertebrate embryo you can even think about doing this type of work in," says Shannon Fisher, M.D., Ph.D., the study's first au...

Infused spleen cells found not to impact islet recovery and reversal of type 1 diabetes in mice

... scale studies. They are small - only about a half inch in length - they grow quickly, and are relatively inexpensive to maintain compared to mice or rats. "Zebrafish are the only vertebrate embryo you can even think about doing this type of work in," says Shannon Fisher, M.D., Ph.D., the study's first au...

University of Utah to help build bionic arm

... so that the implanted device ?less than one-third inch on a side ?can relay signals back and forth wirelessly between the remnant limb, the computer and artificial arm. This work falls under a new cooperative agreement between the University of Utah and Fraunhofer IZM. Fraunhofer IBMT (Institute for ...

Both alcoholism and chronic smoking can damage the brain's prefrontal cortex

... so that the implanted device ?less than one-third inch on a side ?can relay signals back and forth wirelessly between the remnant limb, the computer and artificial arm. This work falls under a new cooperative agreement between the University of Utah and Fraunhofer IZM. Fraunhofer IBMT (Institute for ...

Record bonefish

...the fish was at liberty 321 days, gaining about an inch in length and moving in a linear distance of 186 miles." This distance record is more than double the previous one of 75 miles (Key Largo to Big Pine Key). It also suggests that bonefish can migrate across the Gulf Stream and perhaps mix with the B...

Surprise finding for stretched DNA

...t same molecule measures about one millionth of an inch across. Biologists have long believed that as a molecule of DNA is stretched, its double helix starts to unwind. As much sense as this makes from an intuitive standpoint, a recent experiment proved it not to be the case. Researchers with the U.S. ...

Brain-computer link lets paralyzed patients convert thoughts into actions

...res to a titanium pedestal that protrudes about an inch above the patient's scalp. An external cable connects the pedestal to computers, signal processors and monitors. Converting digitized intentions into meaningful action, however, is not simple. Active neurons fire between 20 and 200 times a second ...

The secret lives of sea slugs

...lso because they suggest that sea slugs don't just inch randomly around the sea. In fact, they respond to odors and other sensory cues by initiating beneficial navigational behaviors, including escaping from predators by swimming up into water currents that hurl them (un-sluggishly) end over end downstr...

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