Global distribution of maternal causes of. death. A maternal death is defined as the death of a. woman while pregnant or within 42 days of. termination of pregnancy, regardless of the. site or duration of pregnancy, from any cause. related to or aggravated by the pregnancy or. its management.
There are two types of control systems namely: 1  Open loop control systems (non-feedback control systems) 2  Closed loop control systems (feedback control systems)
Your tasks will vary depending on which type of controller you become. 1  There are 3 types: 2  area controller â in a regional control centre, tracking and guiding aircraft through your sector. 3  approach controller â managing aircraft as they approach the airport.