Half the population of 1917 would be considered mentally retarded by today's measurements, Professor Nisbett says.
The move toward Lutheranism, however, was both accelerated and retarded by purely political considerations.
Winds at this volume are not directly retarded by surface friction.
"I saw how a society is retarded by an elite cut off from its citizens," he recently told the Observer.
They seem to do best where the growth of newly emerging bracken has been retarded by frost.
The entire area's overall growth and development was long retarded by its isolation and lack of access to the sea.
This transformation is difficult to initiate and is severely retarded by the presence of alloying elements or trace impurities.
For millennia, however, progress was retarded by attempts to design aircraft that emulated the beating of a bird's wings.
Hill has now been found to be intellectually disabled – or, as the courts still put it, "mentally retarded" – by all nine medical specialists who have evaluated him.
If the defendant is found to be mentally retarded by either the jury or the judge, life imprisonment is the maximum penalty.
It is of interest to note that such chain reactions can be retarded by the presence of negative catalysts, more commonly termed inhibitors.
