Word: phenomenons
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Dates: during 1980-1989
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Brandt brings the perspective of history to the group, says Mermin, pointing out that sexually transmitted diseases are not a purely 1980s phenomenon, but date back through the centuries...
...with incomes between the Census Bureau brackets of $15,000 and $49,999. According to the census, the proportion of U.S. families in that category, after adjustment for inflation, shrank from 65.1% in 1970 to 58.2% in 1985 (see chart). The trend is far from being a completely odious phenomenon, though. The statistics show that more families departing the middle class have moved up than down. Families with incomes of $50,000 or more -- considered the gateway to the upper class -- increased from 13% of the population to 18.3% during the 1970-85 period. At the same time, the proportion...
...measure the middle class in different terms, whether by changing the income brackets or focusing on job categories. While some researchers see a smaller shrinkage, or barely any at all, many are convinced that the change is real. "No matter what definition you use, you come up with the phenomenon," says James Smith, a senior economist for the Rand Corp...
...seemed particularly relevant in light of another AIDS disclosure this past week. At a symposium held by the Montefiore Medical Center in New York City, two researchers who have studied the widespread transmission of the AIDS virus among heterosexuals in Haiti and Africa voiced "great concern that a similar phenomenon could happen in the developed world." Their work revealed that 89% of Haiti's AIDS victims had apparently contracted the disease through heterosexual activity -- more than double the percentage of two years ago -- while incidence of the disease among a study group of African prostitutes has jumped nearly 18-fold...
...months ago, 15 scientists flew into McMurdo Station, Antarctica, to investigate a mystery: What causes a thinning in atmospheric ozone above the frigid continent, a phenomenon that has peaked each October since it was first observed in 1983? It was hardly an academic question; the ozone layer is a blanket of oxygen molecules that protects the earth's surface from the sun's harmful ultraviolet radiation, a form of light just beyond the human range of vision. Speculation on the reason for these "holes" has ranged from weather patterns and solar activity to the action of man-made chlorofluorocarbons (CFCs...