Word: acidizing
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...about the unknown risks of genetic engineering. The wrangling has been public, and traditional scientific courtesy has all but vanished. Infuriated by unreasoning opposition to the new discoveries, James Watson-who, with Francis Crick, won a Nobel Prize for determining the double-helix structure of the DNA (for deoxyribonucleic acid) molecule-has labeled the critics "kooks," "shits" and "incompetents." One of his targets is fellow Nobel Laureate George Wald, who has supported efforts to ban recombinant DNA research at Harvard and M.I.T. Wald contends that instead of trying to find the roots of cancer, for example, through genetic research, society...
...that the nucleotides, or "letters," of the genetic message are arranged. These patterns could have arisen, they found, if primitive tRNA molecules each had five nucleotides interacting with the genetic message instead of the three that now do. With five nucleotides, tRNA molecules-each lugging along its distinctive amino acid-could link up firmly with a messenger RNA molecule (which brings the genetic instructions from the DNA molecule). The amino acids could thus be assembled into the appropriate protein without the aid of a ribosome. Contemporary tRNA molecules, unaided, cannot form a stable linkage with messenger RNA; a ribosome...
West German Chancellor Helmut Schmidt did not want Jimmy Carter as U.S. President; in fact, he rooted openly for Gerald Ford during the American election campaign. But Schmidt's discomfort with Carter and his new diplomatic style only explains in part the suddenly acid relations between Bonn and Washington. Last week German Foreign Minister Hans-Dietrich Genscher and Defense Minister Georg Leber flew to Washington for several days of hard discussion on three policy disputes that divide the two allies. They returned to West Germany in a somewhat better mood than they had arrived in Washington with, but without...
...Rappaccini's most perfect--and most fatal--creation is his daughter, the beautiful Beatriz. She is a symbol of man's inventiveness to rival Pygmalia. The only mother Beatriz can claim is Curiosity; she knows she belongs body and soul to her father. Her breath poison, her tears acid, Beatriz lures the new Adam, a student named Juan, to descent into the garden from his garret room next door...
...made with much more recent material. Drawings on paper only began around the 14th century. Before that they were done on vellum, as in illuminated manuscripts. One of the chief problems posed by the care of modern drawings (since the 19th century) carries the ominous title of "communicable acid degeneration." Apparently, half-way through the 1800's, when people began cutting down trees instead of using old rags to make paper, the cardboard used to back drawings acquired a highly acid quality. And, like similarly-titled habits of illegal amusement, the degeneration spreads from one member of the team...