Word: vector
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Dates: during 1970-1979
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...most promising avenue. "There were two major problems," Glashow recollects, "the mathematical problem, and the 'finiteness' problem. I solved the first, and Steve solved the second." The one clue sprung from the fact that the amount, or quantum of energy, exchanged in the weak interactions, the so-called "intermediate vector boson," was found to have the same value as the quantum of energy exchanged in electromagnetic interaction. The scales were obviously vastly different, as were the distances over which the two forces act, but this mathematical parallel nonetheless represented a gummer of hope. Glashow broke through in 1961 with...
...quickly will subsequent relations develop between Washington and Peking?" An analyst at the Rand Corp. points out that the U.S.-Peking relationship "has the potential for the most fundamental realignment of forces since World War II," if it brings Japan into a "triad with an anti-Soviet vector...
Probably the most important of the additional security steps is the recommendation that all experiments undertaken at the p-3 level use a host-vector system of at least an EK-2 level of biological containment...
...host-vector systems refer to Eschirichia coli, a strain of bacteria that rarely survives outside the lab, which can be used as a host bacteria for recombinant DNA experiments...
Unlike other viral diseases transmitted by insects, birds or mammals, smallpox is spread by man himself. Its sole "vector" is a person actually afflicted with the disease; he is contagious only during the four weeks between the appearance of the disfiguring rash and the scaling off of the ugly scabs that form on its pustules. If all those who come in contact with the victim during that period have already been vaccinated or are immune from previous infection, the human transmission chain is broken and the disease is not passed...