Word: acidizing
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...SOON AS THEY SAW THE PLUME OF gas, the Mexican truck drivers leaped out of their cabs and ran for the American side of the border. Acrylic acid, a toxic chemical, had leaked from a tanker waiting in line for U.S. Customs inspection, and the liquid was vaporizing as it gathered in a noxious pool. It was "chewing holes in the pavement," says Lee Thompson, who saw it all happen in early November at the border station outside Laredo, Texas. His hazardous-materials response team, fortuitously on the scene for a training exercise, rushed to prevent the highly flammable acid...
Serious tragedies occur almost weekly. Last September, just north of the border, a Mexican driver was killed when a spark caused by carelessness ignited his tanker filled with jet fuel. Texas officials recently investigated a sulfuric-acid spill in Laredo involving a 16-year-old driver with no insurance and no shipping papers. His rig had faulty brakes; nine of its 18 tires were bald. It is not uncommon to find several Mexican truck drivers carrying insurance cards with the same name and policy number...
...Paul, George and Ringo have stepped back into the Beatle spotlight, they have done so on tiptoe. The lads freely discuss their drug use--what Paul calls the "herbal-jazz cigarettes," which garnered arrests for several of the Beatles, and the experiments with lsd. When they were told that acid could alter their minds, McCartney recalls, "John was rather excited by that prospect, and I was rather frightened." McCartney also talks about the strippers they dated in the Hamburg bars. But all are mum on sexual escapades after those early years. If any groupie got to stay overnight during...
...FEELING ALL TOO FAMILIAR TO MILLIONS OF AMERICANS, AN UNCOMfortable, burning sensation that begins in the chest and neck after a meal. The burning is real, caused by acid being regurgitated into the esophagus from the stomach. It occurs when a muscular valve, which should be tightly closed except when food is swallowed, relaxes or operates inefficiently, allowing stomach contents to back up. In other parts of the world, most people accept it as a fact of life--and tough it out. In the U.S., says Dr. John Walsh, former president of the American Gastroenterological Association (A.G.A.), "only a fraction...
What separates the new over-the-counter medications from the old solutions? Antacids, which consist largely of chemical compounds called bases, neutralize the wayward acid, but as acid continues to migrate upward from the stomach, heartburn can return in only a few hours. Acid blockers like Pepcid and Tagamet, on the other hand, go to the root of the problem by suppressing the production of acid in cells lining the interior of the stomach without interfering with normal digestion. These cells normally produce acid when a form of histamine called H2 "docks" with receptors in the cell walls, much like...