Word: occurance
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Dates: during 1980-1989
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...more glamorous and speculative form has emerged, known as "risk arbitrage." Stock is still bought and sold, but the trend is to concentrate on companies undergoing some sort of restructing--for example, a merger or acquisition. In essence, it is a short term, high risk gamble that change will occur and hence influence the price of stock...
...appears as though large amounts of this protein occur in the brains of Alzheimer's victims but not those of healthy people. This means it may be possible to diagnose the disease in its early stages with an ordinary spinal tap. Such early diagnosis will probably be essential if medicine is to be successful in stopping the disease before it destroys the brain...
...genes -- strands of DNA whose structure acts as a sort of coded instruction manual -- tell different cells what their duties are within an organism. Armed with such specific knowledge, researchers may someday understand exactly why these instructions are occasionally garbled and, perhaps, why cancer and other gene-influenced diseases occur. Predicts Stephen Howell, a plant molecular biologist and a member of the research team: "The scientific community will be able to exploit this tool for as many purposes as one can imagine...
...During intercourse, the white blood cells containing the AIDS virus alight on the mucous membranes inside the rectum or the vagina. Unlike the skin, which is an efficient barrier to the virus, the mucous membrane is a much thinner tissue and is more susceptible to infection. If microscopic tears occur in the membranes during sexual contact, these may act as passageways for the virus. But some studies in animals indicate that even tears may not be necessary for transmission...
Republican loss of the Senate is the big story of the 1986 elections. The change in Senate control probably will have important consequences for Ronald Reagan in particular, and the course of public policy in general. But the political and governmental consequences of elections often occur against a backdrop of little underlying change in electoral sentiment. That is the real story of 1986, a story unlikely to get much play in the wave of postelection commentary...