Word: emits
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...studies, an individual either inhales or is injected with a biochemical, for example glucose, which is the brain's main source of energy, tagged with a telltale radioactive substance that emits positively charged particles. These positrons, when they combine with negatively charged electrons normally found in the body's cells, emit gamma rays that can be detected by a scanning device. Collected and translated into color-coded images, the resulting patterns indicate the intensity of metabolic activity. Because the radioactive substances are so short-lived, anyone undergoing a PET scan is exposed to very little radiation...
Positron Emission Tomography. Here the heart is labeled with isotopes that emit charged particles called positrons. A special machine takes simultaneous cross-section views of the heart from different angles; a computer reconstructs the images to give a three-dimensional picture of the heart. "It isn't in clinical use yet, but it's a valuable tool for sophisticated research," says Jeffrey Borer, a cardiologist at New York Hospital...
...contrast, the researchers suggest a sulfur tax that would range from 50 cents a pound in rural areas to $3 in cities. Monitors would be set up at the 1200 biggest power plants, steel mills and factories in the nation to measure how much pollution they emit...
...there, in these last several months, has probably released more sulfur dioxide into the atmosphere than has been released in the last ten years of automobile driving or things of that kind." In rebuttal, Environmental Protection Agency officials said automobiles are not even regulated for sulfur dioxide, because they emit very little of it; utilities, which are regulated, have spewed out 200 million tons of the gas over the past decade, compared with 400,000 tons from the volcano...
...King of Kings." In the basement, the officers found a letter from the Soviet embassy in Washington informing King that he could not become a Soviet citizen, plus records of about $300 deposited this spring in a Swiss bank and passports for King and his wife. Said Deputy Sheriff Emit Kennedy: "He definitely had something planned...