The flaviviruses causing tick-borne encephalitis (TBE) persist at low but consistent levels in tick populations, despite short infectious periods in their mammalian hosts and transmission periods constrained by distinctly seasonal tick life cycles.
To overcome the strong correlation between daily temperatures over short time periods, constrained distributed lag structures are used in time-series regressions (Armstrong 2006).
Very low discharge rates of the springs in the valley particularly in lean period constrain the drinking water supplies in some villages and in few cases not even a single spring was functional.
The total power of the complex transmitted signal at a symbol period is constrained to be.
Sampling period is constrained for the months December to April inclusive.
The implementation period was constrained to four months because the final report to the Commonwealth Government regarding the NDHP-4 projects were required in August 2003.
In a period of constrained resources, this would not lead to endorsement of routine after-hours procedures, and may in fact lead to scrutiny of how medical facilities operate at night, including more widespread adoption of night shifts.
