Exceptions are allowed in certain compounds and borrowings.
Colonies have been shown to have precise circadian cycles by which genes express certain compounds.
Lautenberg's bill resisted the call of environmental groups to ban certain compounds like BPA immediately.
In the ocean, for example, rising air bubbles in the surf drag certain compounds to the surface.
And nobody has time to check out what happens when certain compounds are in the vicinity of other compounds.
Upon crystallizing from solution, certain compounds form cages (on the molecular scale) of definite size.
The invention is based on discoveries in the 1970's that certain compounds would bind to RNA and DNA in blood products when exposed to ultraviolet light.
But there is a claim that certain compounds found in wasabi, the piquant green horseradish that accompanies sushi and sashimi, can kill the bacteria that cause tooth decay.
Berkeley, California-based Chemisense also plans to crowdsource data from users to show places around town where certain compounds are identified.
Toxicologists in 1933, when Christie wrote the story, were probably using chemical reactions that give characteristic colour changes when certain compounds were present.
Power documents the rise of websites on which communities of psychonauts report on their experiences with certain compounds, or rate the reliability of internet sellers.
