Since the lethal dose 50 (LD50) of all H5N1 wild-type strains in Balb/c mice was similar (range 9 24 TCID50 per animal; see methods) a uniform challenge dose of 1×105 pfu/animal was chosen for all strains.
These tests include air tightness, velocity uniformity, uniform dispersion of challenge contaminants, temperature and humidity control.
For the Spades, creating the uniforms presented "formidable challenges," Ms. Schmitt said.
Federal legislation creating uniform standards for challenging voters' eligibility, making registration easier and outlawing caging has been introduced.
We elected to use a uniform 50-g challenge (which was well tolerated by the children), given that it would be difficult for primary care providers to calculate weight-specific doses.
For example, the addition of sand to enhance conduction also increases thermal shunting between the legs of the loop and presents challenges in uniform mixing and deployment through a tremie pipe.
Mountainous areas and other regions with complex topography present unique challenges for uniform lidar sampling.
39 40 Rwanda's progress has not been uniform, however, and many challenges lie ahead.
For Thelang Thipe, Ms. Tumane's grandson, the uniform helps camouflage the challenges he faces at home.
David Cameron has defended "robust" school uniform policies, after being challenged over their rising cost at Prime Minister's Questions.
