Word: carbone
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David J. Monroe '78 said yesterday he asked James D. Wuest, assistant professor of Chemistry, to discontinue experiments involving dioxane, chloroform, carbon tetrachloride and benzene which are known to produce cancer in laboratory animals...
...coli did not merely accept the hybrid plasmids. When the bacteria reproduced-by dividing and thus doubling-at a rate of about once every 30 minutes, they created carbon copies of themselves, new plasmids and all. In only a day, one bacterium could make billions of duplicates of a transplanted gene...
...solution of cold calcium chloride containing normal E. coli bacteria. When the solution is suddenly heated, the membranes of the E. coli become permeable, allowing the plasmid chimeras to pass through and become part of the microbes' new genetic structure. When the E. coli reproduce, they create carbon copies of themselves, new plasmids -and DNA sequences-and all. Thus they become forms of life potentially different from what they had been before-imbued with characteristics dictated not only by their own E. coli genes but also by genes from an entirely different species...
Some studies at the center are much more mundane. Jack Eddy, a visiting scientist at the Center, has shown how the amount of radioactive carbon in tree rings can be related to sunspots. Increased solar activity leads to warmer climates, Eddy says, raising the radiocarbon content of the rings. Another group of astronomers, working with radio telescopes designed to detect water vapor in remote parts of our own galaxy, found they could also use the radio telescope to measure the amount of water vapor in the earth's atmosphere. The method proved cheaper and more accurate than previous techniques, like...
...Carbon Dioxide...