Given the cost considerations of CCTV, management is often keen on putting as many monitors in front of an operator as possible. From an engineering point of view, the surveying task rarely incorporates an analysis of monitor to operator ratios on the basis of any security risk factor.
NHELD is simply stating, and advocating for, adherence to the founding principles as articulated in the Declaration of Independence and in the Ninth and Tenth Amendments. That is, we believe that the federal government already is restricted by the specifically enumerated rights and powers granted to the federal government, and all other rights and powers are retained by the people and by the States.
medullary sheath myelin sheath. myelin sheath (nerve sheath) the sheath surrounding the axon of myelinated nerve cells, consisting of concentric layers of myelin formed in the peripheral nervous system by the plasma membrane of Schwann cells, and in the central nervous system by the plasma membrane of oligodendrocytes.. The insulating envelope of myelin that surrounds the core of a nerve fiber or axon and that facilitates the transmission of nerve impulses, formed from the cell membrane of the Schwann cell in the peripheral nervous system and from oligodendroglia cells. Also called medullary sheath.