Word: urea
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...Robert Marshall Stephan of the University of Illinois are borne out during the next few years, they may help to send the dentist's drill the way of blacksmith tools. Last week in Science, Dr. Stephan announced that he had found a neutralizer for tooth decay: urea...
Like sweat and urine, saliva contains urea, a nitrogen compound. Dr. Stephan found that two groups of antagonistic bacteria flourish in saliva: 1) the destructive lactobacilli; 2) harmless germs of the staphylococcus family. By brewing an enzyme called urease. the staphylococci split up urea in the saliva into an ammonium compound, which neutralizes the erosive acid. Dr. Stephan's conclusion: teeth may decay when the saliva does not contain enough urea, or when the staphylococci are sluggish...
...hunch that a way to save teeth from decay might be to encourage the staphylococci by giving them an extra amount of urea to work on. So he made up a mouthwash of carbamide (synthetic urea crystals). The crystals are colorless and odorless, taste cool and salty. He gave the mouthwash to 100 patients to use on their toothbrushes, found that an increased amount of calcium was deposited on their teeth...
More fertile than L-O-F's own fertile laboratories are those of the spectacular plastics industry. Nine years ago Mellon Institute presented Toledo Scales Co. with a urea-formaldehyde resin which combined the best features of two earlier plastics, cellulose acetate (translucent, colorable) and phenolic resin (heat-resistant, hard). Toledo Scales formed Plaskon Co., Inc., began using its plastics to replace the porcelain-enameled iron housing of its scales. But Plaskon's uses multiplied like rabbits, soon invaded gardens sacred to glass. Transparent, less shatterable, more easily molded than glass, some plastics are already used for airplane...
...wounds, even trivial ones. Unchecked, it causes death. Wound shock comes from pain, loss of body heat, bleeding and toxemia. Lack of water balance, due to excessive sweating and short water rations, makes soldiers ready victims. The loss of fluid thickens their blood, produces a high concentration of poisonous urea. Best treatment for wound shock, discovered in the last year of World War I: 1) small doses of morphine for relief of pain; 2) an abundance of blankets and hot water bottles to prevent chill; 3) plenty of warm, sweet tea to restore a proper water balance; 4) blood transfusion...