1 Volunteering with organizations is a way for communication officers to get experience in the field. 2  For example, many non-profits will have programs or events that they would like to be publicized. 3  Students can join a committee that focuses on publicity to gain experience. 4  Practice social media.
Ventilation perfusion coupling is the amount of gas reaching  alveoli & blood flow in pulmonary capillaries; local  autoregulation.10 people found this useful.Edit. coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. Couplings do not normally allow disconnection of shafts during â¦ operation, however there are torque limiting couplings which can slip or disconnect when some torque limit is exceeded.
Ventilation perfusion ratio is an indicator of how well the oxygen  we breathe in is being transported through the lungs and into the  blood system.hile blood â¦ flow is generally understood as an increase in the total amount of blood flowing into an anatomic structure or region, tissue perfusion is the amount of blood that actually flow through the capillaries of the vascular bed of that structure or region.