All of the specific chemical combinations he's isolated for both the yellowfever mosquito and Anopheles albimanus, a tropical mosquito that spreads malaria, don't need the CO2.
32.
Whatever the reason for the low levels of barbiturate in Harper's blood, opponents of the death penalty say that the three-chemical combination is needlessly complicated and risky.
33.
The Supreme Court refused to hear Exxon's appeal of a federal appeals court decision, which critics say could threaten thousands of existing patents that cover chemical combinations.
34.
His work was a major step towards a better understanding of chemical reactions and the realization that some substances are composed of chemical combinations of other substances.
35.
For a given nuclear isomer in two different physical or chemical environments ( different physical phases or different chemical combinations ) the electron wave functions are also different.
36.
This lack of information also applies to many of the chemical combinations to which humans are exposed, including residues in food, indoor air contaminants, and occupational exposures to chemicals.
37.
"There's no question the Chase-Chemical combination is going to force Citicorp to do all sorts of things, " said Raphael Soifer, an analyst at Brown Brothers Harriman & Co.
38.
"There's no question the Chase-Chemical combination is going to force Citicorp to do all sorts of things, " said Raphael Soifer, an analyst at Brown Brothers Harriman & AMP; Co.
39.
In 1819, on the heels of the invention of the voltaic pile, J�ns Jakob Berzelius developed a theory of chemical combination stressing the electronegative and electropositive characters of the combining atoms.
40.
JARRETT : " What I do doesn't transfer to CD . The sounds and the musical things get on it, but the flux, the chemical combination that becomes alive in the room, isn't there.