Word: emits
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Dates: during 1980-1989
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...appeals court rejected all of the arguments by the MATEP opponents, who have fought the plant, claiming that the diesel engines when operating will emit unsafe leves of nitrous oxides...
...proposed electronic system would involve placing a small mercury label in each book. Monitoring devices at the door would emit a beep if someone tried to remove a book. "One reason I considered it is because we cannot afford to have a staff member checking bags at the door," Kovacs said...
...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...