Word: existing
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Dates: during 1970-1979
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Four secured facilities for juveniles now exist in Massachusetts: at Roslindale, Chelmsford, Worcester, and Westfield. When they fill, surplus juvenile delinquents must either be diverted into community-based programs or into an adult penitentiary, depending on the seriousness of their crime...
...become apparent that those particles too are complex rather than elementary. They are now thought to be made up of the simpler things called quarks. A solitary quark has never been observed, in spite of many attempts to isolate one. Nevertheless, there are excellent grounds for believing they do exist. More important, quarks may be the last in the long series of progressively finer structures. They seem to be truly elementary...
...Brookhaven National Laboratory and the Stanford Linear Accelerator Center. The particle was eventually interpreted as a combination of a charmed quark (c) and a charmed anti-quark (c*). But final confirmation came in May 1976, when the Stanford team, led by Gerson Goldhaber, found incontrovertible evidence that charmed particles exist...
...conditions for dealing with the P.L.O. In Jerusalem, on the day before he went to Cairo, Vance was persuaded by passionate Israeli arguments that Israel could not be expected to sit down with a P.L.O. delegation so long as the P.L.O. covenant explicitly rejects Israel's right to exist. But Israeli officials also told the Secretary that they would tolerate Palestinians at the bargaining table if they were there as part of a Jordanian or united Arab delegation. The proposed confederation would seem to meet these demands. There is also the chance that the P.L.O. will soon drop...
...Sotho-Tswana, a language with important modern literature from southern African and also phonetically interesting; and several others. For the study of any of these languages, there exist good and even excellent grammars, dictionaries, and readers...