Word: lifespan
(lookup in dictionary)
(lookup stats)
Dates: during 2000-2009
Sort By: most recent first
(reverse)
...then again, there aren't a lot of things like NASA's Spirit and Opportunity Mars rovers, the robotic ships that landed on the Red Planet five years ago this month with an expected lifespan of 90 days and yet have chugged along ever since - surviving paralyzing cold, blinding dust and long periods without sun, all of which occasionally left them silent and still, but only until conditions improved and they shook off the dust, stirred to life and puttered off to do more work. So far, Spirit and Opportunity have beamed home a quarter of a million images...
...protein that regulates gene expression and fixes damaged cells is increased, genes may be less likely to deteriorate, according to the study. Cells that remain in better condition for longer age more slowly, theoretically allowing organisms to remain younger longer. “People may have an extended lifespan,” said Raul Mostoslavsky, a researcher at Harvard-affiliated Mass. General Hospital who worked on the study. The protein, produced by a longevity gene called SIRT1, is known to perform two main jobs in yeast cells, according to Philipp Oberdoerffer, a pathologist at Harvard Medical School and the study?...
...through the mail was a thrill? These days Americans get an average of 18 pieces of junk mail for every personal letter. From catalogs to credit-card solicitations, our mailboxes are increasingly clogged with clutter. Dealing with unwanted mail not only wastes our time (eight months over the average lifespan) but also bears environmental costs. Paper spam eats up an estimated 100 million trees each year, with 44% of junk mail ending up--unopened--in landfills...
...targets and goals. "The odds of a cure coming from one center are nil," Giusti says. "You need a mutual fund to fight cancer." From not having a single drug in the pipeline, the MMRF now has 30, half of them in clinical trials. The average lifespan of a multiple-myeloma patient has been extended by three years, to seven...
...think that diseases, other viruses and other pathogens, can behave differently. Antibodies are made by something called memory B cells, and the memory B cells for the 1918 flu clearly live for the lifespan of the human organism, which is wonderful. It raises important questions for looking at other pathogens, however, and it's important to try to look at these questions for different pathogens individually. Evidence shows it's important to get a regular tetanus booster, for example. Still, our new study may suggest another angle to look at things, which is how long do memory B cells last...