(That period varied widely, with the fiscal year for a few companies ending as early as March 1999).
Water temperature during the investigation period varied between 4 °C and 18 °C.
Results: Total prevalence over the 1988–1998 period varied between 1.43 and 1.96 per 1000 live and still births.
The total coating thickness was approximately 1.5 μm, and the bilayer period varied from 300 to 20 nm.
Furthermore, there is an almost perfect linear relationship of resonant wavelength tuned and the period varied with negligible effect on the linewidth.
Mean May-July hourly ozone concentration measured by conventional monitors over the same area and period varied from 37.9 to 45.8 ppb.
The bi-layer period varied between 2.8 and 3.1 nm and in all cases a {1 1 0} texture developed with a maximum value T*=4.9.
The frequency of the pulsar during this same period varied in a nearly sinusoidal manner, with an amplitude of 1.5 x 10-3 Hz and a period of 8h.
(That period varied widely, with the fiscal year for a few companies ending as early as March 1999). Several of those listed -- like Bill Gates of Microsoft and Dale F. Morrison of Campbell Soup -- are no longer chief executive today.
The duration of the Archaic Period varied considerably in Northern America: in some areas it may have begun as long ago as 8000 bce, in others as recently as 4000 bce.
The time period varied in a regular and reproducible way.
