Word: celling
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Dates: during 1980-1989
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...city's addiction to the internal-combustion engine. First, it imposes stricter emission standards and forces employers to encourage car pooling. Then it calls for conversion of most vehicles to methanol and other cleaner burning fuels. Finally, in a Buck Rogers phase that assumes rapid advances in fuel-cell technology, it calls for a massive switch to cars, buses and trucks powered by electricity...
...parents. They were never subversives, never disloyal to their country, he says. His sensitivity to Alfred and Sylvia (both still living) means that he never quite penetrates the deepest questions: Exactly why did people like them join the Communist Party? Just what did they do at their cell meetings? Was there in fact some danger in having people working for the Government whose loyalty was also to the Communist Party? And, on a more personal level, does he feel he has betrayed the father he clearly loves very deeply...
Finding a cure for the common cold has been an elusive goal for generations. The reason: there are more than 100 different types of rhinoviruses, the culprits responsible for about half of all colds. Now scientists may have the key to warding off the sniffles. Reporting in the journal Cell last week, two separate research teams announced the discovery of a cell molecule to which rhinoviruses attach themselves. When the cold viruses bind to the molecule, known as the ICAM-1 receptor, they infect the cell...
...discovery means that synthetic copies of the molecule might one day be made into a decoy medicine. Sprayed into the nose, the drug could confuse invading rhinoviruses, luring them away from the real cell receptors in the body. Once bound to the synthetic, the viruses could be neutralized and thus prevented from causing colds. But that strategy, which might prevent but probably would not cure an active cold, has thus far worked only in the test tube. Relief is still years away...
...eliminating genetic defects is to tread on slippery scientific and ethical ground. As any biologist will testify, genetic variety is the spice of life, a necessary ingredient to the survival of a species. Genes that are detrimental under certain conditions may turn out to have hidden benefits. Sickle-cell anemia, for example, is a debilitating blood disease suffered by people of African descent who have two copies of an abnormal gene. A person who has only one copy of the gene, however, will not be stricken with anemia and will in fact have an unusual resistance to malaria. That...