It shows 24-hour periodicity for each depth layer for defined periods throughout the polar night.
Government requires some data to be held for defined periods, such as banking services or our own personal tax records.
The chain distinguished itself as one of the pioneers of automatic markdowns — reducing prices on merchandise by certain percentages after it lingered for defined periods of time.
The rules on use of judicial review have been tightened, and the lobbying bill as first introduced into parliament would have seriously curtailed charities' political activity in generously defined periods before elections.
LU said its offer would see station, maintenance, service control staff and operational managers receive up to £850 subject to attendance, customer satisfaction scores and working flexibly for defined periods to help deliver a successful transport system.
Objects could be leased for defined periods of time to other museums, or to private collectors for the duration of their lives, so the museum would be assured of their eventual return.
Gross, a contributing editor to New York magazine and the author of "Model: The Ugly Business of Beautiful Women," organizes his book in roughly defined periods that require him to keep cycling through all 19 of his characters in short sections in chapters with titles like "Childhood," "Adolescence" and "Extended Adolescence".
But as a citizen, I am more concerned by the fact that ill-considered social media postings can haunt people for their entire lives than by the fact that the intelligence agencies hold some data for defined periods that they can only access for legally defined purposes.
But there's a strong demand to keep some data for defined periods of time.
This must also include secondment of personnel for defined periods to support programs of the unit.
While admitting the change from day to day rugby management to clearly defined periods of the calendar will be difficult, he insists it will have its benefits.
