Word: urea
(lookup in dictionary)
(lookup stats)
Dates: during 1970-1979
Sort By: most recent first
(reverse)
...plan is put into action, Occidental and San Francisco's Bechtel Corp. will build a huge chemical-plant complex in the Volga River city of Kuibyshev. It would produce up to 4,000,000 tons of liquid ammonia and 1,000,-000 tons of urea annually, which Occidental would get over a 20-year period in return for its investment...
...Angeles' Occidental Petroleum, is scheduled to fly there again, with bright hopes of finally signing a major East-West trade deal. It would be an arrangement for Occidental to ship up to 1,000,000 tons of fertilizer per year to the Soviet Union in exchange for urea and ammonia that the company would sell in the U.S. That, Hammer predicts, would lead to a whole series of metal, gas and construction deals with the U.S.S.R. that could run into billions of dollars. He told TIME Correspondent Patricia Delaney that he expects to sign the Soviets to contracts...
...dropped into a tube containing a solution of potassium phosphate, sodium dithionite and saponin. Clouding of the solution is a danger signal but does not specifically identify hemoglobin S. If the first round arouses suspicion, a second test, also based on Murayama's work, is performed immediately. Urea, a natural waste substance produced by the normal liver, breaks some molecular bonds in abnormal hemoglobin. When urea is added to the solution that had shown a positive reaction initially, the liquid clears quickly if hemoglobin S is present...
Medicine still has no cure for this inherited illness. But a team of Michigan medical researchers has just announced a discovery that offers new relief for sickle-cell sufferers. By treating the patient with a solution of urea and invert sugar, say the researchers, the sickling tendency can be reversed and the misshapen cells returned to normal...
...Grand Rapids, owes its discovery to the work of another researcher, Makio Murayama of the National Institutes of Health. Murayama discovered that the sickle-cell shape is caused by an abnormal bonding between hemoglobin molecules in the red cells. Using this knowledge, Nalbandian's team decided to try urea, a waste substance produced by the normal human liver and excreted in the urine. As they knew, urea can dissolve certain types of molecular bonds. Their experiment worked: urea broke the bond between the hemoglobin molecules, halted the sickling effect, and relieved the victims' pain...