Word: rareness
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...often does this occur? "My guess is that it's a rare event," says Vilain, "but it might happen more often than we think...
...colleagues suggest that there are two ways this could have happened, depending on when the actual twinning event took place. In the first scenario, the egg might have divided in two (without separating) and then each part fertilized by one sperm. Egg division before fertilization is very rare, says Minkin. The second, more likely possibility is that the egg fused with two sperm cells and created a triploid cell. Then, at the second-cell stage, each shed the chromosomes from each of the sperm - or did something to correct its chromosomal count, says Souter. "There are a whole host...
...often prolonged by taking most of his directions from pre-schoolers. We also had to backtrack several times to retrieve washing or a suitcase he forgot. And besides the guinea fowl, he squashed a dog, grazed a camel, thwacked a goat, blatted a pigeon and sucked a rare-looking green finch into the grill...
...Patients whose cancer moves into the bone tend to survive longer than those with metastases in the liver or lung. Russell says that she has a few patients who have survived 10 years with bone involvement, but this is extremely rare. The fact that Elizabeth Edwards relapsed just a little over two years after initial treatment is a bad sign, suggesting that her cancer is very aggressive. On the plus side, though, is that Edwards' disease is "low volume", according to her oncologist, Lisa Carey of Chapel Hill, N.C., meaning little tumor is present. Also favorable, says Russell, is that...
...intellectual location to search for answers. Speaking personally, I made friends from many continents, and the Rhodes experience profoundly shaped my life. There is always time to climb the ladder of professional success, but a chance to explore the important questions of life in a foreign setting is a rare opportunity. This controversy should not discourage Harvard students from applying...