Search Details

Word: nitrogenating (lookup in dictionary) (lookup stats)
Dates: all
Sort By: most recent first (reverse)


Usage:

When a human diver descends to great depths, the nitrogen in his lungs tends to dissolve in his blood. When he comes to the surface, it forms bubbles that clog the circulation. This might not happen to whales if their lungs were full of oily foam. Oil has an affinity for nitrogen; it can absorb six times as much as blood can. Fraser & Purves think that when a whale dives, the nitrogen in the air of its lungs is absorbed by oil droplets before it gets into the blood. So the whale makes a deep dive and surfaces without suffering...

Author: /time Magazine | Title: Science: Whales Don't Get the Bends | 1/9/1956 | See Source »

...doing battle, a Minneapolis meeting of smog fighters from all over the U.S. suggested that smog irritation may not be caused by the obviously suspect fumes from exhaust pipes and smoke stacks. The theory: combustion in power plants and all types of engines throws hundreds of tons of nitrogen oxides into the air, along with hydrocarbon compounds. The oxides absorb energy from sunlight, which enables them to turn hydrocarbon compounds into what chemists call "free radicals," i.e., fragments of molecules free to form new chemical compounds. Possible result: rare chemicals in the air never suspected in smog...

Author: /time Magazine | Title: Medicine: How to Fight Radicals | 9/26/1955 | See Source »

...medical section of your magazine carries a brief report of my research on the preservation of whole blood by freezing . . . The story is ... misleading. We do not spray liquid nitrogen on the blood but vice versa. The transfusion was not a complete success since over 6% of the cells were destroyed in the processing and another 6% left the circulation in the first six hours after transfusion. Storage is only theoretically indefinite at temperatures too low to be practical. Storage at higher temperatures is being studied, but results are not yet available. My associate, Mr. [Emanuel] Kafig shared equally...

Author: /time Magazine | Title: Letters, Sep. 12, 1955 | 9/12/1955 | See Source »

...related experiment, Dr. Harold Thayer Meryman has frozen his own blood. First he took the precaution of drawing some of it from his body. Then he sprayed it with liquid nitrogen. This froze it. Dr. Meryman promptly thawed it, tagged it with radioactive chromium, then had it transfused back into his body. Object: to see whether the frozen blood would deteriorate faster than normal. A radiation counter, timing the clicks that Dr. Meryman set off, showed no difference in the rate of blood-cell destruction. Whole blood, now difficult to keep longer than three weeks, could be banked indefinitely after...

Author: /time Magazine | Title: Medicine: Pools of Healing | 8/22/1955 | See Source »

Modern medicine now goes to the mind of the matter. A cirrhotic liver may fail to filter some nitrogen compounds which the body makes in the process of digesting protein foods such as meat. These compounds so affect the nervous system that a diet rich in protein will play hob with the intellectual power of such a patient...

Author: /time Magazine | Title: Medicine: Or, What You Will | 8/15/1955 | See Source »

Previous | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | Next