Word: oxygenate
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...since these antigens were genetically controlled, there was no way to remove them from the cell," says Kevin Lafferty, an Australian-born immunologist who is director of research at the Barbara Davis Center for Childhood Diabetes in Denver. In 1980, however, Lafferty discovered that culturing islet cells in an oxygen-rich environment for a couple of weeks kills those that bear trigger antigens. Says Calvin Stiller, an immunologist at the University of Western Ontario: "This cultured fetal tissue can be transplanted with impunity...
Ischemia occurs when coronary arteries partly clogged with fatty deposits of plaque suddenly contract in spasms or are blocked by a clot, depriving the heart muscle of blood and thus oxygen. While painful or "noisy" ischemia (angina) often results from physical stress, like climbing stairs, even slight exertions, like balancing a checkbook, can trigger silent ischemia. During these episodes, which typically last a few minutes but can go on for ten hours, large portions of heart muscle can be damaged. Yet in more than 75% of all cases, for still unknown reasons, the victim feels no pain...
...final step was to irrigate the plants with a solution containing luciferin, another substance found in fireflies, which must combine with luciferase, oxygen and adenosine triphosphate, a substance found in all cells, to produce the familiar luminescence. The plant's well-being is unaffected by the glow, which can be seen only with sensitive video equipment, photographic time exposures or eyes that have become accustomed to the dark...
Publicity is the life's-breath of a demagogue. Without it. his inflamatory shenanigans are extinguished like candles without oxygen. We should therefore be wary of the ease with which these provocateurs gain widespread exposure...
...reason for concern is that without ozone, life on earth would be impossible. Ozone is oxygen but in an unusual form. Most oxygen comes in two- atom molecules, but external energy -- in this case, the sun's ultraviolet radiation -- can split some of them apart. The single oxygen atoms tend to attach themselves to the remaining molecules, forming an oxygen-atom triplet. The result: a layer, from six to 30 miles up, of ozone-enriched air. Once formed, an ozone molecule is a good absorber of ultraviolet. But when CFCs rise to the ozone layer, sunlight decomposes them, releasing...