This is crucial because previous breakthroughs are the barometer by which to measure all subsequent progress.
But Israel will demand definitive progress, if not a breakthrough, before June, the month by which it estimates Iran's production of highly enriched uranium will give it the capability to build an atomic bomb.
To determine the mechanism by which mifepristone improves breakthrough bleeding, the effects of mifepristone on proliferation and apoptosis of Ishikawa endometrial carcinoma cells were evaluated in the presence and absence of progestin.
In the early 1970s Chauvin achieved a breakthrough when he described the mechanism by which a metal atom bound to a carbon atom in one group of atoms causes the group to shift places with a group of atoms in another molecule.
Marianne Faithfull took the Carnegie Hall stage to perform her breakthrough 1964 single, "As Tears Go By," which was the first song ever written by Richards and Jagger.
Therefore, the findings of the present thorough analysis further support such mechanistic model, which may provide a breakthrough in our understanding of the biophysical mechanism by which protein structure constrains sequence divergence.
His current research is on the creation of digital-media tools for office environments by which people become more creative and innovative producing breakthroughs for business.
"The real breakthrough will come when someone is able to figure out the mechanism by which [genome reduction] occurs".
What insulin did was turn a brief, deadly illness into a long, chronic struggle, and both the exhibit and the book, "Breakthrough," by Thea Cooper and Arthur Ainsberg, on which it is based highlight the complicated questions that inevitably follow medical miracles: Who will get the drug first?
In the presence of soot, less NH3 is adsorbed as shown by a breakthrough which occurs at earlier times-on-stream than in the absence of soot.
