Dugwayâs Chemical Test Division successfully tests JCAD system on Stryker. Caged in a menacing looking metal grid with intricate sensory equipment attached to all sides the Armyâs M113 NBC RV Stryker vehicle sits on a dusty road at Dugway Proving Groundâs target S grid being readied by its crew for testing....
The following conditions are when secondary curvatures of the spine  develop:   Cervical-when the baby starts to hold its head up   Lumbar-when the baby starts to â¦ walk. 4 people found this useful.
Specific types of secondary headaches include: 1  External compression headaches (a result of pressure-causing headgear). 2  Ice cream headaches (commonly called brain freeze). 3  Rebound headaches (caused by overuse of pain medication). 4  Sinus headaches (caused by inflammation and congestion in sinus cavities).