Word: acidic
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Dates: during 1990-1999
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...dance music that was born in Detroit during the mid-'80s. A fusion of the futuristic computer-driven sound of European bands like Kraftwerk and the rhythmic possibilities of computer-controlled keyboards, techno caught on first in Britain and Belgium, where it became the sound track for marathon "acid house" parties...
...formidable enough opponent, mainly because researchers still don't understand the method to its madness. Like all viruses, HIV is simply a strand of genetic material (in this case the nucleic acid RNA) surrounded by a protein coat. A virus lacks the tools to reproduce unless it invades a living cell and takes over the host's molecular machinery. The intruder can then produce many copies of itself, eventually killing the cell. One of HIV's favorite targets is the CD4 T-cell, an important player in the human immune system...
...nonathletes dashing from the shower to grab a ringing phone -- rely to a large extent on this system, which provides lots of quick power but can operate for only a short time. The reasons: depletion of the necessary chemicals and buildup of a chemical by- product called lactic acid, which inhibits muscle contraction. Middle- distance athletes depend on a delicate balance of both aerobic and anaerobic systems...
...help determine how well energy production is going, scientists and trainers collect air exhaled by athletes during workouts and take blood samples to test for chemicals such as lactic acid. Speedy computer analysis enables the trainers to get information in time to make adjustments in subsequent workouts...
...terms of transportation and use in various engines, including diesels and turbines, put it in direct competition with oil and gas. Coal's chief disadvantages are that it is bulky and dirty. Sulfur oxides (SOx) and nitrogen oxides (NOx) have been indicted as principal villains in the formation of acid rain. More than half the nation's electricity is produced by power plants that burn coal. By running finely ground coal through a chemical bath (currently pentane, a hydrocarbon similar to butane), the Otisca process separates out all but 1% of the mineral content...