Word: positronic
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...study focused on a small group of middle-aged volunteers, all of whom had relatives with Alzheimer's and who complained of mild memory problems themselves. First the researchers drew blood samples to test for the presence of the Apo-E4 gene. Then they used a PET scanner (positron emission tomography) to record each patient's pattern of brain activity. After a computer sifted through the data, a striking correlation emerged. A group of 12 individuals who had inherited Apo-E4 showed diminished activity, particularly in the parietal region of the brain--a region that is dramatically impaired by Alzheimer...
Female breasts, he says, may also influence irregularities on thallium stress tests; simply put, the breast tissue gets in the way of the imaging technique. Doctors at Beth Israel Medical Center in New York City have apparently circumvented that problem by using the PET (positron-emission tomography) scan, which they say is highly accurate in detecting even minor heart damage in women...
FOOTNOTE: *Antiprotons and positrons are examples of antimatter, a rare set of particles that mirror normal matter. A proton is positively charged, but an antiproton is negative. The counterpart of the negative electron is the positive positron...
CAPTION: CERN's Large Electron-Positron Collider...
There are no doubt plenty of frontiers left for CERN to push back. Though LEP does not appear to be powerful enough to find the top quark, the "clean" electron-positron collisions could reveal many other exotic phenomena. One long shot is the much-sought Higgs boson, named for British theoretical physicist Peter Higgs, one of the first to recognize its importance. According to some theories, the Higgs boson is what gives all particles their mass. The idea is that everything in the universe is awash in a seaof Higgs bosons, and particles acquire their mass by swimming through this...