As forewarned by Seaman et al. [ 2], our 12-week follow-up period avoids major confounding by periodic changes in ex-prisoners' drug use.
The fast Fourier transform, which measures the power of periodic changes at different temporal frequencies, permits an assessment of periodicity over time [ 34].
This orbit, they decided, must be the cause of the periodic changes in brightness.
In our experiment, an unknown external oscillating signal causes the quantum system to undergo periodic changes.
It always did, but at least there was an opportunity for periodic changes reform.
The remaining fragments show periodic changes in brightness, indicating to astronomers that they are tumbling, irregularly shaped objects.
The use of cost analysis studies and periodic changes in the method of cost distribution must be fully justified.
Periodic changes in the algorithms can make or break a news organization by boosting or diminishing its news stories before a mass audience.
MOVING into its 16th season this weekend, the "Lyrics and Lyricists" series at the 92d Street Y is undertaking another in what have become periodic changes of approach.
Astronomers will announce a new planet find with a graph, typically with a nice curving line that represents the periodic changes in starlight associated with the orbiting body.
Specifically periodic changes of reaction parameters are expected to enhance the rates of certain reactions [Chem. Eng. Commun. (1973) 111].
