This high mutational tolerance at antigenic sites could itself be a property that influenza has evolved to aid in its antigenic escape or it might simply be an unfortunate coincidence that the immune system focuses on especially plastic portions of HA.
The warning system focuses on one type of seismic wave that moves quickly -- 3.5 miles a second -- but causes little damage, resembling the waves that travel along a Slinky toy when one end is pushed and pulled quickly.
We consider a region of tissue actively undergoing angiogenesis with numerous sprouts projecting towards a distant VEGF source, e.g. a tumor; our model system focuses on one of those sprouts, to capture the behavior of proteases and VEGF around it.
The French system focuses on subjective appeal.
The contribution of these taxpayers must be respected by ensuring that the welfare system focuses on those most in need".
But critics say that the system focuses on lower-level offenders rather than the more violent criminals.
While your April 5 news article about the latest admissions figures for the University of California system focuses on minority racial and ethnic groups, it almost entirely ignores Asians.
The system focuses on three stages of child foot development including the "pre-walker" stage, when children are crawling, the "early walker" stage, when children take their first steps and the "off and running" stage, when toddlers are walking.
Our system focuses on classifying and monitoring human daily activity.
This system focuses on the space occupied by the particle instead of on the particle itself.
The proposed detection system focuses on the availability of IPv6 wireless sensor network.
