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Washington University in St. Louis

— Science

World's fastest 2D camera captures 100 billion frames per second

By - December 3, 2014 1 Picture
Researchers at Washington University in St.Louis have built what they claim is the world's fastest 2D receive-only camera, which is able to capture images at a rate of up to 100 billion frames per second. Using a technique called Compressed Ultrafast Photography (CUP), the researchers have so far taken photographs of a number of properties of light propagation and behavior that are already pushing the dimensional limits of fundamental physics. Read More
— Medical

LEDs may replace magnetism and radiation for neuroimaging

By - May 26, 2014 1 Picture
When doctors want to monitor someone's brain activity, they generally use either functional magnetic resonance imaging (fMRI) or positron emission tomography (PET). One subjects the patient to strong magnetic fields, while the other involves radiation exposure. Scientists at Washington University in St. Louis, however, have recently had success using diffuse optical tomography (DOT). Although it may look kind of extreme, it basically just involves shining LEDs into the subject's head. Read More
— Medical

Electronic membrane could provide high-res heart care

By - February 27, 2014 1 Picture
When it comes to monitoring the electrical activity of the heart, or delivering electrical stimulation to it (as in the case of pacemakers), most current technologies rely on electrodes that make contact with the organ in just a few locations. That doesn't necessarily provide a very detailed picture of what's going on, nor does it deliver stimulation all that evenly. Now, scientists have created a sensor-laden three-dimensional elastic membrane that can be pulled over the whole heart, to provide a large number of contact points. Read More
— Health and Wellbeing

New type of electrotherapy makes implantable defibrillators less shocking

By - November 21, 2012 1 Picture
While regular pacemakers attempt to rectify arrhythmias (irregular heart beat rhythms) using constantly-delivered electric pulses, implantable cardioverter defibrillators do something a bit different. As long as everything stays normal, they don’t do any shocking – when they detect a dangerously fast heart beat, however, they respond by delivering a massive jolt of electricity to the heart. While this may save the patient’s life, it’s also very traumatic and painful. Now, a team of scientists from Washington University in St. Louis may have come up with a solution to that problem. Read More
— Science

Earth destroyed repeatedly in the name of science

By - August 9, 2012 1 Picture
Unlike in old B movies, real scientists don’t scream “Fools! I’ll destroy them all!” before throwing the switch on their doomsday device. At least, most of the them don’t. However, the August 10 issue of the Astrophysical Journal reports that a team of scientists are working on destroying the world - not once, but repeatedly. Fortunately, the world they’re destroying exists only in a computer simulation and its destruction is in the service of learning more about planets revolving around other stars. Read More
— Medical

Nerve detour restores partial hand function in quadriplegic patient

By - May 18, 2012 1 Picture
It's been a good news week for those suffering debilitating spinal injuries. First we looked at a breakthrough that enables quadriplegic patients to move robotic arms using just their thoughts and now, in related news, surgeons at the Washington University School of Medicine have reported the successful rerouting of working nerves in the upper arms of a quadriplegic patient, restoring some hand function. Read More
— Health and Wellbeing

Bio-marker predicts rate of mental decline in Alzheimer's patients

By - March 9, 2012 1 Picture
A new marker of Alzheimer’s disease can predict how rapidly a patient’s memory and other mental abilities will decline after the disorder is diagnosed, according to researchers at Washington University School of Medicine in St. Louis. Just released in Neurology were the results of a three-year long study that followed 60 patients with early Alzheimer's disease. The study found that rapid mental decline was predicted by the presence of larger levels of visinin-like protein 1 (VILIP-1) in the spinal fluid. Read More
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