KUMC Researchers Announce Breakthrough Method For Predicting Epileptic Seizures
...ibility would be a device that would create a tiny voltage surge to "short-circuit" the electrical discharge that causes a seizures. Another possibility is an implanted drug pump that would send anti-convulsant medication into the brain when seizure component levels begin to rise. "This is very excit...Three INEEL Inventions Win International Recognition
...over the largetransformers conventionally used for voltage measurement at power distributionsites. The EOHVS ...ough the developers have concentrated initially on voltage measurement atpower substations, they believe the technology has unique advantages that willbe criti...MIT Microchip Releases Chemicals On Demand
...nto itssilicon structure. Apply a small electrical voltage to a given reservoir, andthe thin gold cap coverin...tereservoirs. In other words, they applied a small voltage between a reservoircontaining chemical A and a cathode and observed that chemical's release, thenat ...Neutron Research To Help In Treatment Of Cancer Patients
...of light -- through a large dome charged to a high voltage by a moving belt. What makes the university's accelerator unique are recent technologicaladditions that allow it to measure the speed and number of neutrons with newlevels of precision. In 1981, a 100-foot culvert was built into the side of ...Tiny Tools Give New Meaning To 'Cutting Edge'
... are very expensive, tend to overheat and needhigh voltage to function. Silicon-based tools could solve those problems, and add another major advantage,Lal said. The material allows the machine-makers to integrate mechanical andelectrical properties together in the same device. That means medical tools canbe...Rosenbaum discovers "hidden clue" on cardiogram
...n the link between T-wave alternans on the ECG and voltage changes occurring within individual heartcells. "W...he cardiac cell very carefully, is that the cell's voltage is oscillating. Such beat-to-beatoscillations are the source of the T-wave alternans pattern on the ......me as electrical shocks. For onething, the contact voltage of a typical industrial electrical shock is 20 to 63kilovolts, while a lightning strike delivers about 300 kilovolts. Industrial shocks rarely last longer than half a second (500 milliseconds)because a circuit breaker opens or the person is thrown fa......o the spine of the moveable comb. When an electric voltage to the comb repeatedly cycles from positive to negative, the teeth alternatingly attract and repel each other. This moves a comb back and forth and makes work -- like driving a gear -- achievable. The laboratory devices, funded by Sandia's Laboratory...New method lets researchers study heart cell communication
...ject a current into the muscle and you measure the voltage between two electrodes along the path of that current flow. Gap junctions affect that voltage." But electrodes are not useful for studying how gap junctions work at the cellular level, Cascio said. "So this would provide a way to look at cell-to...Electricity can pump medicine in implanted medical devices
...tages could be just as effective. In practice, the voltage needed would depend on the size of the implantable device and the amount of drug that had to be dispensed, Conlisk said. These electrical charges would not be dangerous to a patient, Hansfor...Calcium-dependent potassium channels as target to increase drug delivery to brain tumors
...ulate the flow. While some gates are controlled by voltage changes, others are activated by the presence of a secondary chemical, in this case, calcium. Previous studies have shown that calcium-dependent potassium channels in cerebral blood vessels regulate vessel tone, affecting dilation and constriction. A......hundreds of microseconds are applied to cells. The voltage charges the lipid molecules in the cell membrane, creating transient holes in the membrane. The method can be used to help get drugs or genes into cells. But the latest technique involves more powerful electric fields, with gradients of tens of mega...A common cleanser is cheaper and faster way to separate DNA for genetic analysis
...ents a voltage. "DNA just needs to know it's in a voltage and it will move," says Scott Kern, M.D., professo...current and heat." Gels using TBE and TAE at high voltage are known to melt and distort DNA particle movement. "Our work opened up the door to try different s...Alternative/supplemental breast imaging methods tested
...tissue. * EIS: This painless test uses a very low voltage electrode system to examine how the breast tissue conducts and stores electricity. Living cell membranes carry an electric potential that affect the way a current flows, and different cancer cells have different electrical characteristics. * MIS: Th...Using 'smart fluids' to retrain muscles
...rease pressure on a joint simply by increasing the voltage from a small battery. Mavroidis is optimistic about starting human trial this fall in association with Spaulding Rehabilitation Hospital in Boston. The power of smart fluid could transform the rehabilitation process for millions of people. Accordi...Long-sought key to hearing may be found in protein discovery
... allow ions to flood into the cilia. The resulting voltage change activates the conversion of sound to a nerve signal. Then, the cilia bend back and ion channels snap shut. "Hair cells convert a mechanical stimulus into an electrical signal with molecular, strings, springs and levers," Corey says. "It's ce...Monitoring life, one breath at a time
...o work under specific light waves. By changing the voltage in the device, one can control the read and erase functions. These research results, which were published in the September issue of Nano Letters, differ from other memory and optical applications of nanotube transistors. Comments from the researche...Student identifies electrical changes preceding heart failure
...t in different amounts depending upon the cellular voltage or calcium levels in the individual tissue samples. The emitted light was then collected by a sensitive optical detection system, converted to current and stored on a computer for analysis. Hahn and Akar were able to demonstrate that electrical distu...