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)
The types of control measures, listed from most effective to least effective, that may be used to protect yourself, your workers and your customers are: 1  Engineering controls; 2  Administrative controls; 3  Work practices; and.  Personal protective equipment (PPE).