Word: cyclic
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Viagra's effects on the hydraulics of male sexuality are pretty straightforward. Originally developed as a heart medication, the drug works directly on the blood vessels, blocking an enzyme called phosphodiesterase. This enzyme prevents the release of certain neurotransmitters--most notably one called cyclic GMP--that cause the smooth muscles surrounding arteries to relax, allowing the arteries to expand. When this occurs in penile arteries, it leads to engorgement, which leads to erection...
...Egyptian grave robber, a disciple of the Apostle Paul in the early church, etc. One can only assume that these departures are supposed to orient Turnbull's life and ever-present death in the greater span of history--to connect his existence with others' in some all-encompassing cyclic understanding. In comparison with the use of imagination in such classic Updike as The Centaur, however, these elderly wet dreams seem positively puerile...
Alternative rock's leading lights shouldn't be written off--R.E.M. and Hootie probably both have more than a few big, interesting albums left in them. It's worth remembering too that the music business is cyclic. Every few years critics proclaim that rock is dead, and then a band like Nirvana--or the Sex Pistols before them--comes around and changes everything. Now the hunt is definitely on for the next Next Big Thing. Ska is a candidate, with groups like No Doubt racking up sales. Trip-hop is another contender, with performers such as Tricky and Portishead. There...
...People seem to think it's cyclic, so maybe there will be jobs after I get out of graduate school," she said...
...working on gene therapy for cystic fibrosis at New York Hospital-Cornell Medical Center. "Unless we do clinical trials, we're never going to learn. You have to test it in the lab on animals, try it in humans and then go back to the lab. It's a cyclic process...