epoch

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epoch

In clinical trials, the interval of time in the planned conduct of a study—the term epoch is intended to replace period, cycle, phase, stage and other temporal terms. An epoch is associated with a purpose (e.g., screening, randomisation, treatment, follow-up), and applies across all arms of the study.

epoch

(ĕp′ŏk)
A measurable amount of time; e.g., the length of time used in standardized sleep studies (usually 30 sec to 1 min), or the duration of a particular geological or biological event, as indicated in earth sciences.
References in periodicals archive ?
22) Williams saw a related but distinct risk in a Marxian legacy of attempts to categorize cultural forms epochally, rather than contingently.
In it, Fukuyama, the former Bush State Department official and Rand Corporation functionary, argues that the collapse of the Soviet Union represents not simply the victory of Western liberalism over Soviet communism but, even more epochally, the final stage of History.
Projected above the entrance to the show, Andy Warhol's intentionally - and epochally - boring silent film, Empire, 1964, is stripped of its most salient feature, its durational character, and the movie becomes as static as a slide projection.