Word: molecular
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...even as the cancer debate continues, environmental groups are pointing to a different, previously unrecognized threat. Chemical pollutants, they say, can interfere with one of the most basic of biological functions: the ability to reproduce. The chemicals allegedly disrupt the action of hormones, those all-important molecular messengers that regulate just about all bodily activities, including growth and reproduction. The result may be a variety of harmful effects that could decrease fertility. Among them: testicular cancer and reduced sperm counts in men, uterine abnormalities and miscarriages in women. While there is no hard evidence that pollution is affecting human fertility...
...dubious honor for the last remaining superpower, but the U.S. can now claim to be the bargain basement of the world. Signs of this distinction are everywhere this summer -- atop the Empire State Building, for instance, where Klaus Graumann, 27, a molecular biologist from Austria, is snapping pictures with his just acquired Olympus camera, wearing jeans, a polo shirt and running shoes also bought during his visit. "We say, 'O.K., we've seen the museums. Let's get a sandwich and go to the department store,' " notes Graumann...
...like to understand the things around us at the molecular level," he says. "I liked physics but it is hard to relate it to the world around...
Singer, who graduated from Swarthmore andreceived her Ph. D. from Yale University, is theauthor of two books on molecular biology...
...prevent, save for special circumstances like wound healing. For blood vessels invading joints can cause arthritis, and those invading the retina of the eye can cause blindness. To prevent such damage, cells keep blood vessels at bay by pumping out thrombospondin. At a recent scientific conference, Noel Bouck, a molecular biologist from Northwestern University Medical School, stunned her colleagues by presenting preliminary data suggesting that thrombospondin production may be regulated by that ubiquitous gene...