Yet even though the risks appear to be small, researchers who are studying the molecular biology of embryos grown in petri dishes say they would like a better understanding of what happens, so they can improve the procedure and allow couples to make more informed decisions.
This prospectively designed study was conducted by a small researcher-led team with very few external factors to account for.
He added with concern that small researchers operating on the edge may be forced to make "difficult choices".
Because individual studies are generally too small, researchers are likely to combine data from several studies into one study.
Of course, if standard errors are too small, a researcher will be more likely to reject, incorrectly, any given null hypothesis.
In such a small trial, researchers will be able to pick up only obvious problems, Dr. Fauci said.
The degree of this oblateness is small, the researchers report in a paper published online by Science.
Although the number of children who used booster seats was small, the researchers said there were enough children to make the results statistically significant.
While the actual increase in solar intensity in the 206-year cycle was very small, the researchers suggested it was enough to induce climate changes that would have affected the Mayans.
2. World's Smallest Lasers Researcher(s): Charles Lieber, Xiangfeng Duan, Yu Huang and Ritesh Agarwal (Harvard University).
This is a contribution to small business researchers and small business strategy and practitioner effort in the marketing and design of small retailer offering.
