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Tag: "pick" at biology news

Brain-computer link lets paralyzed patients convert thoughts into actions

...bout 1 mm into the surface of the brain where they pick up electrical signals -- known as neural spiking, the language of the brain -- from nearby neurons and transmit them through thin gold wires to a titanium pedestal that protrudes about an inch above the patient's scalp. An external cable connects the...

Production of key Alzheimer's protein monitored for first time in humans

...e." Over the course of hours, cells in the brain pick up the labeled leucine and incorporate it into the new copies they make of Abeta and other proteins. Scientists take periodic samples of the subjects' cerebrospinal fluid through a lumbar catheter, purify the Abeta from the samples and then use a dev...

Mice lacking key immune component still control chronic viral infections

...rol of herpes and other chronic diseases, they may pick up and display other parts of viral proteins for CD8 T cells to recognize. If so, vaccine developers may need to revise their approach in order to create vaccines that trigger the most potent antiviral immune responses. "The ultimate relevance of t...

APS lecturer shows rare video of 'teacher-student' immune cell interactions in live animal

...al phase lasts about eight hours. Then the T cells pick one antigen-presenting dendritic cell and sticks to it for many hours. After one day, the T cells disengage from the dendritic cell and begin to rapidly reproduce. About three days later, they depart from the lymph node on their search-and-destroy m...

Research tracks whales by listening to sounds

...f Alaska about five years ago. The hydrophones can pick up right whale sounds from about 40 kilometers away ?and even farther, if the waters are shallow and the terrain even. Using those hydrophones, Mellinger discovered a number of sperm whales living in the Gulf of Alaska in the winter. The hydrophones...

Biofuels can replace about 30 percent of fuel needs with significant research and policy effort

...types of fuels and technologies are needed to help pick up the slack. A group of experts in science, engineering and public policy from the Georgia Institute of Technology, the Imperial College London and the Oak Ridge National Laboratory recommend a comprehensive research and policy plan aimed at increa...

Scientists discover dozens of new species in 'Lost World' of western New Guinea

...ere were here in abundance. We were able to simply pick up two Long-Beaked Echidnas, a primitive egg-laying mammal that is little known." The discoveries solved one major ornithological mystery ?the location of the homeland of Berlepsch's Six-Wired Bird of Paradise. First described in the late 19th centu...

Zebra finches remember songs dad sang

...pecies and those of other species, the young birds pick their own species. "If the processes of learning in young birds and human babies have formal similarities, which it now seems they do, then studying the songbird brain can tell us how this imitation trick is actually performed by cells in the brain,...

Plant-derived vaccines safeguard against deadly plague

...th any recombinant subunit vaccine is that you can pick and choose selective antigens that can confer protection and limit the potential for adverse reaction," said Mason. More than half the vaccinated animals survived the challenge with all forms of the antigen, and guinea pigs vaccinated with V antigen...

Supersized 'island' of resistance genes discovered in an infectious bacterium

...ibiotics. "A. baumannii is exceptionally prone to pick up foreign DNA from other bacteria," Claverie said. The study traced the origin of many resistance genes to other bacteria, including Salmonella, indicating frequent genetic swapping between bacteria. Resistance genes are usually located on small a...

Flu not the only germ threat this time of year

...t your finger in your mouth, or touch your eye, or pick your nose, you're a spreader, to put it bluntly. People share cell phones, they shake hands to be social. These are effective ways to transmit disease." While RSV may sound new, the best way to prevent it ?washing your hands ?is not. "We've known f...

Researchers develop portable 'vein finder' for faster, more accurate injections

...ow much energy you can put in and how much you can pick up," he adds. "Cost, size and power issues restrict us to using a single sensor, which limits the type of signal processing we can do to eliminate the scattering effects." Once the system is successfully adapted for humans, data processing and elec...

New evidence questions the simple link between prion proteins and madcow disease

... exposed to highly infected brain and could only pick up a tiny amount of PrP from other tissues. This will then be exposed to 48 hours or more digestion before it arrives in the gut, and our experiments show that after this, the chance of there being more than an unmeasurably small amount of PrP left t...

Infection 'alarm' yields clues to immune system behavior

...ver, we discovered that the cellular pathways that pick up this signal act like extremely sensitive radio receivers. They can pick up the alarm message from exposure to even a very small amount of TNF. This turns out to be a very s...

Infants can organise visual information at just four months

... looked at this longitudinally, so we were able to pick up that these categories weren't stable" says Dr Farran. "So these differences can't be indicative of differential brain development, or predictive of later abilities." Some of the research was designed to test whether infants are able to organise v...

Rare Tibetan antelope listed as endangered

...rounding tissue, Smith explained. The sensors then pick up the returning echoes and relay them back to the scanner where they produce an image of the moving tissue or organ. The scanner uses parallel processing to listen to echoes of each pulse in 16 directions at once. The laparoscopic ultrasound probes...

3D ultrasound device poised to advance minimally invasive surgery

...rounding tissue, Smith explained. The sensors then pick up the returning echoes and relay them back to the scanner where they produce an image of the moving tissue or organ. The scanner uses parallel processing to listen to echoes of each pulse in 16 directions at once. The laparoscopic ultrasound probes...

Picking particles faster than one at a time

...herefore "a human still has to go through them and pick out the good ones," Adiga says. Adiga and his co... know how the particle looks before you set out to pick good images of it, only how big it is," says Adiga. The thresholding procedure is iterative, but e...

Scientists directly view immune cells interacting to avert autoimmunity

...lls ?the scavenger cells of the immune system that pick up and display self proteins that trigger the auto-aggressive T cell response, said Jeffrey Bluestone, PhD, distinguished professor of metabolism and endocrinology at UCSF and senior author on the paper. Bluestone directs the UCSF Diabetes Center. ...

'Computer-chemistry' yields new insight into a puzzle of cell division

...trical charges in a way that allows the protein to pick up other phosphate-containing chemical groups to pass along as part of a molecular bucket brigade. Rudolph initially knew the kinase's and phosphatase's general topographies as well as the locations of their active sites. "But it was literally a gue...

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