Abstract: A body support structure includes a structural lattice structure having a first stiffness, and a compressive lattice structure supported by the structural lattice structure and having a second stiffness less than the first stiffness. A skin lattice structure is supported by the compressive lattice structure, wherein the skin lattice structure is resistant to shear deformation in response to a normal force and is expandable in a direction transverse to the normal force.

Abstract: A security system includes machine readable passenger and employee wrist bracelets and baggage tags in conjunction with a computerized control system, electrically remotely actuated locks, alarms, and communications links to monitor and control the movement of passengers, employees, and baggage. The system prevents security breaches through lost security badges, misplaced keys, or access codes being given to or obtained by unauthorized individuals, and may include double doors having remotely actuated locks to selectively detain unauthorized individuals between a pair of locked double doors. The wrist bracelets and baggage tags are preferably constructed so as to be difficult to remove and may include electronic circuitry to provide an indication of tampering or removal. The system preferably includes a database associated with at least one data display and input terminal to maintain information pertaining to flight data, passenger data, employee data, baggage data, and facility data.