You always have the choice to experience our sites without personalized advertising based on your web browsing activity by visiting the DAA’s Consumer Choice page, the NAI's website, and/or the EU online choices page, from each of your browsers or devices.
When there is only a single asymmetric carbon atom, these two different forms are known as optical isomers.
Chemically, there is very little difference between them, but biologically, there is as much difference as night and day.
He was quoted as saying that he had discovered the basis of the method in 1968, and that it was so obvious and simple he was amazed it hadn't been discovered earlier.
As a matter of fact, the basis of this method had been discovered earlier and had been reported in a series of papers published by Hare, Mitterer and Abelson in 1967, 1968, and 1969.
The rates obtained at these temperatures were extrapolated to 2° C and to 4° C, the present average temperatures where the deep-sea cores containing the sediment samples were obtained.