Tag: "power" at biology news
Bacterial Toxin Surprises Scientists
... Their work may shed light not only on the deadly power
of certain toxins, but on diseases like cystic fibrosis that result from defects in natural membrane channels. "If we could understand how this protein works, we might understand more about how proteins are normally ...
Gene-Altered Mouse May Provide New Insights To Parkinson's Disease, Substance Abuse And Schizophrenia
...al to understandand ultimately break the addictive power
of drugs." Caron said the research "points to neutrotransmitter transporters asthe most important determinant of the strength and duration of cellularcommunications in the nervous system." Dr. Ralph Snyderman, chancellor for health affairs at Duke,...
Enzyme's "Magic" May Hold Key to Anticancer and Antimicrobial Drugs
... slowly dividing cells, Dr. Wang said. Part of the power
of drugs that target topoisomerases is that they complement drugs that attack different cellular targets, and so can be used in aggressive combination chemotherapy. "For unknown reasons, there are higher levels of ...
Researchers Use Hydrated Lime To Reduce Toxic Selenium Emissions
...olatile and toxic byproducts producedby coal-fired power
plants. An essential trace element for humansand o...dry sorbentfurther away from the firing point in a power
plant, where temperaturescan exceed 1,000 degrees Celsius. "At 400 to 600 degrees Celsius, the rate ...
Photosystem I -- An Intermediate Step -- May Not Be Necessary For Plants
...ght -- enter a plant cell, their energy is used to power
two sequential light-dependent reactions. In Photosystem II (PSII), the light energy is used to split water, producing oxygen and electrons. In Photosystem I (PSI), these electrons are used to produce compounds that ultimately react with carbon dio...
Automobiles Gain High Technology Noses To Sniff Out Breaches In Air Pollution Laws In Europe Wide Research Project
...lymers and semiconducting oxides. These ultra-low power
sensors will be capable of using the normal car power
supply to perform tasks previously not possible without access to power
demands in excess of what wa...
Hawaiian Whales Show 'No Overt Response' To Sounds Of ATOC Simulation
...er about one-tenth the size and one-hundredth the power
of the ATOC sound source to test effects of sound on nearby whales in relatively shallow water. Whereas the simulation sound source was located 1 kilometer offshore and 40 meters below the surface, the actual Kauai ATOC speaker will broadcast...
Brain Mapping In Real Time
...ittsburgh. "With the T3E, we have enough computing power
to stay ahead of the scanner," said PSC neural scientist Nigel Goddard. "The same processing that used to take more than a day on workstations we can now do in minutes." "This is a big step forward," said Dr. Jonathan Cohen, codirector of the Laborat...
Duke's Russian Laser Making Ultraviolet Light And Gamma Rays
... wavelengths.Also, FELs' beam pulse structures and power
levels are extremely easy tomanipulate. FELs prod... the best match, noris the pulse structure or peak power
generated by excimer lasers ideal forthis procedure," Madey said. Since the OK-4 is much more flexi...
Florida Company Using ORNL Technology For Revolutionary Wheelchair
...tes the wide turningradius typical of conventional power
wheelchairs. "These revolutionary maneuvering char...ngefficiency by eliminating wasted moves, time and power
consumption," saidTerry Lewis, president and chief executive officer of Cybertrax. "For thefirst tim...
Robots, Virtual Reality & Other "Smart" Tools Soon Will Help Physicians Heal Patients
...hysicians' skills," says DiGioia. "By coupling the power
of these emerging technologies with human skills, we hope to improve our patients' outcomes. Reducing complications and making procedures more precise and less invasive should result in faster recoveries and less need for repeat surgery," he says. ...
The CIA Would Like To Know What Scientists Are Seeing Over The Rainbow
...the July 26 issue of the journal Science *. The power
of the current diagnostic techniques is limited in examining whole chromosome sets, called karyotypes, for changes because the methods rely on chemical stains that reveal only shades of gray. Pieces exchanged from one chromosome to another--a proces...
Learning From Birds And Bees: Engineers Study Insects For Ideas On Tiny "Micro Air Vehicles"
...t restrictionsdemand new types of flight controls, power
sources, propulsion systemsand avionics to fit within the 50 grams (two ounces) allowed for thevehicle and its payload. Full-sized aircraft use motors and hydraulic actuators to move wingand tail structures that provide directional control, for inst...
Purdue Study Aims To Boost MRI Capabilities
...s. His group at Purdue is studying ways to combine power
and speed without causing distress. Initial findings from the study, funded by the National Institutes of Health, will be reported April 16 at the annual meeting of the International Society of Magnetic Resonance Medicine in Vancouver, British Columb...
Hopkins Engineering Undergrads' Inventions: Power Tools For Double Amputee, Military Surveillance Robot
...veloped amechanism that allows Rickels to attach a power
screwdriver to his prosthetic arms without help fromanother person. Rickels made his req...
Everyday Technology Underlies First DNA Computer Logic Gates
...lectronic computers ever built, and the computing power
of a teardrop-sized DNA computer using the new DNA logic gates could dwarf that of the world's most powerful supercomputer, which is the size of a house. Ogihara believes DNA will prove useful on problems that now require vast networks of compute...
New understanding of crab populations may not bring fishermen's delight
...ated calculations, butrecent advances in computing power
available should give the researchersthe tools to answer them. Their current model takes five days, round-the-clock,of powerful computer time. Higgins and Hastings expect the mathematical results for this systemto influence efforts to understand oth...
Purdue-Made Soil Benefits The Environment
...product. "If this type of operation were set up at power
plants, the soil could be sent back to the coal companies on their empty coal trucks, and they could use it to help reclaim the areas they mine." In May, more than 600 tons of the Purdue-made soil were shipped to the Chinook Mines in Brazil, Ind., in...
Merging Physics And Neuroscience: First Evidence Of Self-Organized Criticality In Brain Networks
...raised to aspecific exponent. Adherence to such a power
law is the signatureof self-organized criticality....l in thebrain tissue. Jung's model obeys the same power
law observedexperimentally in the rat brain. "The graph from the model and the graph from the exper...
UW Smogmobile Offers Cleaner, Safer Alternative To Gas Or Electric Cars
...cooled liquid nitrogen is converted to a gas could power
a car. But the UW group was the first to develop a... employed in the smogmobile prototype was built to power
a winch for raising ship anchors. It has the high torque needed to propel a vehicle but consumes the...
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