Word: pigmental
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...lists. His paintings, marked by skilled draftsmanship and dramatic coloring, have had a particular vogue with U.S. collectors, among them Nelson Rockefeller and Cinemactor Clifton Webb. Last week Pagliacci, who knows a good thing when he sees it, was hard at work burning up two more Roman churches with pigment and canvas...
...protein called opsin from the eyes of freshly killed animals and mixed it with vitamin A and two enzymes (organic catalysts): alcohol oxidase (from horse livers) and cozymase (from yeast). When this mixture is placed in the dark, the enzymes convert the vitamin A to retinene, a yellow pigment. Then the retinene combines with the opsin to form bright red rhodopsin...
Experiments on the phenomenon, long an enigma, have been going on here for over a year. George Wald, professor of Biology, Ruth H. Hubbard, research fellow in Biology, and Paul K. Brown, reported to the Society last year that they could manufacture synthetic rhodopsin, a red pigment found in the retina which helps translate light waves into the sensation of sight...
When placed in the dark, the mixture undergoes certain changes as the various ingredients inter-act. A yellow pigment is formed first, then the red rhodopsin...
...their years of meat famine and general austerity, but it seems to be a fact that their blood is running thinner. Last week an officer of the Greater London Red Cross Blood Transfusion Service announced that tests on blood donors in 1950 had revealed a hemoglobin (oxygen-carrying red pigment) level several points below the average in 1939. As a result, the Red Cross lowered its minimum hemoglobin standard for new donors from...