Tag: "electrical" at medical news
An Ergonomically Redesigned Analgesia Delivery Device Proves Safer And More Efficient
... caused by device malfunction (i.e., mechanical or electrical
problems), while only 7% were caused by human error (the remaining 7% had unknown or unrelated causes). However, the reliability of these figures to accurately portray the incidence of human error is likely undermined by the under reporting of human ...
Temples Virtual Lab Helps Disabled Students
...hnology he developed, Brian P. Butz, aprofessor of electrical
engineering at Temple University, is helping these...r learningexperiences. Butz has created a "virtual electrical
laboratory," which replicates actual labconditions and allows students to conduct hands-on research,...
Help On The Way For Victims Of Paralysis
...ressure and other sensory receptors. Theythen send electrical
impulses to a control unit that stimulates other cuffsimplanted around the motor nerves to the muscles. This allows movement. "This technology has reached a point where we are getting close to buildingnerve cuffs using industrial standards," says Hof...
Possible Mechanism For Estrogen Memory Enhancement Found
...ters are chemicals thatmediate the transmission of electrical
impulses across the synapses betweenneurons. "The estrogen activated both receptors within minutes -- causing a lastingincrease in neuronal activity," Thompson reports. "Estrogen also enhanced theprocess of long-term potentiation. Activating the NMDA...
Tiny Tools Give New Meaning To 'Cutting Edge'
...geons an incomparable new edgein medicine. Lal, an electrical
and computer engineer with the University ofWiscon...s through surface treatments. Lal's devices use an electrical
process called ultrasonics, which createsextremely fast sonic vibrations that are beyond human perce...
Cut Nerve Fibers Are Repaired In An Animal Model of Spinal Cord Injury; May Help Repair Nerve Damage In Humans
...erve cells possess axons, extensions that transmit electrical
signalsover long distances in the body. When these biological transmission lines arecut, their electrical
signals can no longer be transmitted. Nerve cells inmammals, including humans, usually cannot regen...
Psychologist Detects Brain-Activity Changes In Maltreated Kids
...Research last fall, looked at differences in brain electrical
activity betweenchildren who have suffered specifi...ap with tiny receptors that can measure theirbrain electrical
activity. The response measured is called an Event RelatedPotential (ERP), which is a sharp increase...
Nonintrusive Imaging Technique Useful For Identifying Language Regions In Kids' Brains
...orm of epilepsyresulting from lesions that disrupt electrical
pathways in the brain. Removingthe lesions often reduces the severity of their seizures, but the Wada test,used for decades to identify language areas in the brain so they can be avoidedduring the surgery, can be traumatic. The test also is used prio...
Magnet Therapy Eases Severe Depression, Double Blind Study Shows
... that can last several months.rTMS directs a small electrical
current induced by a strong magnetic field onlyon the prefrontal cortex behind the forehead. The treatment is repeated overshort time intervals, is painless and has no side effects. During treatment, the magnetic field is transmitted through...
Cure For Abnormal Heart Rhythm Available To More People
...of the patient's heart, a three-dimensional map of electrical
activityin the patient's atrium. This information allows the cardiologist to quicklypinpoint the source of the abnormal heart rhythm. Moreover, the new catheter,which encircles the heart chamber, does not have to be moved around to locatethe source...
Heart Drug Finds New Use In Patients With Wolff-Parkinson-White Syndrome
...therwise healthy, the extra connection can causean electrical
"short circuit" and a very fast heartbeat. Additi...ialfibrillation can also impair the heart's normal electrical
pathways. Forsomeone with WPW, this can allow electrical
impulses to travel down the shorteraccesso...
Treatment-Resistant Depression: Results of Latest Electromagnetic Stimulation Study Show Promise
...medium between electricity in the coil and induced electrical
currents in thebrain. The current depolarizes neurons in the brain up to a depth of about twocentimeters below the brain's surface. Unlike ECT for depression, rTMS does notrequire anesthesia or analgesics." Study subjects were antidepressan...
Noninvasive test aims to prevent sudden cardiac death
...ildly out of control. Identifying people with this electrical
glitch that puts them at risk, however, could allo...m. Such tests are of little value in detecting the electrical
problems responsible for sudden death, however. Studying the electrical
system of the heart typicall...
Computer matches CT scans to disease database
...rodley, who isworking with Avi Kak, a professor of electrical
and computer engineering;graduate students Chi-Ren Shyu, Jennifer Dy, Mark Flick, Sean MacArthur andChristina Pavlopoulou; and medical doctors Alex Aisen from Indiana UniversityMedical Center and Lynn Broderick from the University of Wisconsin Hospit...
Using spatial illusion to learn how the brain processes sound
...itorycortex---the part of the brain that processes electrical
signals generated inthe inner ear," Middlebrooks s...the microelectrode probes, U-Mresearchers recorded electrical
activity from individual neurons in the cat'sauditory cortex as it heard the sounds. "With the probe...
Rosenbaum discovers "hidden clue" on cardiogram
...iac arrhythmias. They detected oscillations in the electrical
impulse generated by individual heart cells, causi...t becomes electrically unstable. You have aloss of electrical
synchronization, such that the heart can go into fibrillation. We found this pattern over and over a...
... specialists." Most doctors are more familiar with electrical
shocks, such as those received byindustrial worker...ipment. But lightning injuries are not the same as electrical
shocks. For onething, the contact voltage of a typical industrial electrical
shock is 20 to 63kilovo...
Scientists at Children's Hospital and Brandeis use video games to unlock secrets of the brain's sense of direction
...rsity and Children's Hospital,Boston, examined the electrical
activity in the teens' brains as they maneuveredth...and other cognitive functions,surgeons monitor the electrical
activity of the brain by placing wires directlyon the brain's surface. With careful attention to th...
How the nose knows
...e lands on areceptor, the nerve cell dispatches an electrical
signal to the brain, whichprocesses this information to identify the smell. Theoretically, one could imagine that for every odor molecule there may be adifferent receptor, determined by specific genes. However, even if there were,say, only 10,000 dis...
Keck Foundation funds research to repair the injured spinal cord
... to determinewhether cell transplantation restores electrical
circuits from the injured partof the spinal cord. They also will find out whether the transplanted cells mustintegrate themselves into these circuits for functional recovery to occur. "Thisstudy will determine whether transplanted nerve cell precurso...
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