Neurotransmitters are chemical messengers that coordinate the transmission of signals from one nerve cell (neuron) to the next.eurotransmitters are chemical messengers that coordinate the transmission of signals from one nerve cell (neuron) to the next.
Soldiers in the secondary zone may be boarded with 16 months time-in-service and four months time-in-grade as of the first day of the board month. The time-in-service requirement for attaining eligibility for promotion to SSG is 84 months Active Federal Service for the primary zone and 48 months for the secondary zone.
Semi centralized Promotions (E-5 and E-6). In this process means the unit plays a part in the promotion selection process, but the Army decides who actually gets promoted. There are two promotion processes. The first is known as the Primary Zone, which most enlisted soldiers are promoted through and then there is the Secondary Zone.. The Secondary Zone gives the possibility of early promotion to exceptional performers.