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.
An ideal ratio of ventilation to perfusion (also known as V/Q ratio) is approximately one. If this ratio is less than one (but not zero), hypoxemia caused by this mechanism can develop. Abnormal V/Q ratio in various regions of the lung is the most common cause of hypoxemia in all types of patients. This type of hypoxemia is also common in advanced liver disease due to cirrhosis and hepatic hydrothorax. It responds beneficially to oxygen supplementation given either by face mask or nasal prongs.