Word: extracts
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...gold mine, indeed. Most of the available IF is now obtained from the Finnish Red Cross and the Central Public Health Laboratory in Helsinki, which extract it from white blood cells separated from donated blood. The output in 1979 was minuscule, 400 mg (.014 oz.) gleaned from 45,000 liters (90,000 pints) of blood. The effort is so painstaking that, according to estimates by scientists at the California Institute of Technology, a pound of pure interferon would cost between $10 billion and $20 billion. That price will certainly decline as large companies enter the field with more efficient production...
...enrichment plant that is designed to diminish European reliance on the U.S. for enriched reactor fuel. To increase the amount of energy they can get from a given amount of uranium, the French also operate one of the world's largest plants for reprocessing spent fuel rods to extract unused uranium 235 and plutonium. But retreating nuclear fuel this way also produces highly radioactive liquid wastes that must be stored indefinitely. The French now refrigerate the waste and store it in double stainless-steel tanks, sheathed in reinforced concrete then hermetically sealed in a reinforced concrete vault, and buried...
...carried the crucial interferon DNA? Analyzing them in successively smaller groups-first 500 at a time, then 64, then eight-the scientists isolated their genetic needle in the haystack: the bacteria that carried the DNA for interferon. After they found one such bug, they could easily identify others and extract the DNA fragments. The team spliced them into different places in E. coli, and, presto, the bacteria began cranking out a close facsimile of the human protein...
...develop secondary and tertiary sources, many of which will become both economically feasible and absolutely necessary as conventional minerals become costlier in the 1980s. For example, the U.S. imports 93% of its bauxite, the major aluminum ore, but the Bureau of Mines is experimenting with a process to extract alumina from clays found in Georgia and Arkansas. More experiments, more domestic mining and some compromises on the environmental front would help avoid repetition of the oil saga of the 1960s and 1970s, when the U.S. became needlessly overdependent on dubious foreign suppliers. In an era of growing economic confrontation, increasing...
...York's Empire Buying Service, Owner Jack Brod was importuned by one eager customer to extract his loose, gold-filled tooth on the pot. Brod refused; the man left, but returned a few days later with tooth in hand. Typically, New York Dealer Harry Rodman paid one Maryland dentist $500 for the gold scrap and dust that he had collected with a special vacuum from dental grindings in just two years of practice. Dealers also quietly bought gold fillings from morticians, proving that you can't take it with...