Word: clocked
(lookup in dictionary)
(lookup stats)
Dates: during 1990-1999
Sort By: most recent first
(reverse)
...People don't flock to take out books at 5 o'clock in the morning," said Richard A. Phillips '99, who works nights at the circulation desk...
WASHINGTON: At precisely nine o?clock Friday morning, the Internet became a free territory. Well, not quite, but that is when the Commerce Department released a preliminary plan on its web site for phasing out U.S. government involvement in the name-registration business...
...work suggests a way to prolong life, scientists are a long way from making it a reality--and it may be too risky to be useful. The study proves something that researchers already suspected: each of the 1 trillion cells in the human body contains its own biological clock, which tells the cell when to stop growing and start dying. It might be possible to stop that clock. But would it be prudent? Many biologists think the cell's planned obsolescence is an all-important safeguard against the development of cancer...
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...
...turn the clock over so that you can't see it; after a while, you begin to fear the light that you know will come streaming in the window far too soon. You lie in bed, alternately staring at the ceiling and the insides of your eyelids, trying to remember what someone once told you when you had trouble sleeping as a child, to pretend that you are lying on a raft on the ocean or that you are floating on a cloud. You start thinking about balancing on a cloud and what clouds are made of and whether...