Word: laddered
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Dates: during 1990-1999
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...scientists at the University of Genoa, Italy, noted that the rays coming from unshielded quartz-halogen lamps can induce mutations in the DNA of bacteria. Since genetic mutations are one cause of cancer, they decided to move up a few rungs on the evolutionary ladder. They subjected specially bred hairless mice to the lights 12 hours a day for a year and found that every one developed skin tumors -- most benign, but some cancerous. The research, reported in the British journal Nature, involved only a handful of mice, so it was labeled a pilot study. But the results were...
...seventh year, her tenure case comes up for review. The ladder to tenure is fully in view. Instead, the professor is sent down the Harvard chute, and out the door...
...Harvard has no such built-in tenure system. And junior faculty members generally come here for temporary stays. Statistics indicate that only a small percentage of "ladder faculty"--Harvard's term for assistant and associate professors--go on to attain tenure...
Levine adds that education is at the bottom of the ladder of social issues, beneath health care concerns and prison reform...
...Square's coloring books prove that these days. Smart Coloring is the first rung of the corporate ladder. Any savvy child on the way to the top knows that to Scribble For Success, one has to stay in the lines. And by all means, to avoid "vivid tangerine...