(Some researchers have proposed a longer time span for this stage that extends into more recent time).
Cuvier assumed a relatively short time span for Earth but was impressed by the vast changes that undoubtedly had occurred in its geologic past.
Cardiovascular diseases are mainly related to hypertension and dyslipidemia and increase with aging because of the larger time span for these risk factors to damage arterial blood vessels.
From the start of the planning up to the end of operation, the time span for this project will be almost 50 years.
Scientists are not yet able to determine whether manmade climate change or natural cycles are to blame for the warming seas in the region because 40 years is a relatively short time span for such phenomena.
"O.K., it's a seven-year time span for full implementation," said Sesto Vecchi, a corporate lawyer with long experience in Vietnam, "But there it is in black and white, and the clock is ticking".
Exhibit 1, "Managerial Hierarchy in Fiction and in Fact," shows the hierarchical structure of part of a department at one company I studied, along with the approximate responsibility time span for each position.
In all, our sample spans the 1976-2003 time period, and analyzes the patenting outcomes of over 350,000 distinct inventors over that time span, for a total of over 2.5 million inventor-year observations.
"If they had looked at a 30-day time span for oil reaching shore, the risk would probably have looked a lot higher and maybe triggered a more stringent review under the Endangered Species Act," Dr. Small said.
Each panel from the top down shows the trend over an increasingly longer time span, with the shaded area corresponding to the time span for the panel directly above.
Time span for organization of IHT was relatively short.
