Word: preventive
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Dates: during 1990-1999
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Scientists have long theorized that a cell's biological clock lies in its telomeres, little bits of DNA that coat the tips of the chromosomes and, much like the plastic cuffs on shoelaces, prevent the strands from unraveling. Every time a cell splits in two, the telomeres shorten, until finally, after about 40 to 90 divisions, they are reduced to stubs. Because any further divisions would fray the chromosomes, the cells settle into a twilight stage and eventually die. Only an enzyme called telomerase, first discovered in 1984, can repair the damaged telomeres. However, most human cells, with the exception...
...prevent people from profiting off Princess Diana's name, her London-based memorial fund on Sunday unveiled a distinctive logo that will be attached to all official Diana memorabilia. Diana's sons William, 15, and Harry, 13, have approved the design, which is her own signature in purple, one of her favorite colors, over the words "Princess of Wales Memorial Fund...
Despite these persisting links to the University, Crimson reporters historically have not hesitated to exercise editorial freedom in criticizing the University. In general, the University has not attempted to prevent them from doing so. But the amount of administrative ire The Crimson aroused differed from...
According to a Crimson editor in the class of 1948, the president of Radcliffe tried to prevent The Crimson from electing the college's women as editors in the late 1940s, arguing that Radcliffe News--the newspaper for the women's college at the time--would suffer. The Crimson elected women anyway...
...says he made an effort not to prevent students from expressing their opinions in print...