Some of the most expensive fighters such as the US F-14 Tomcat, F-15 Eagle, F-22 Raptor and Russian Su-27 were employed as all-weather interceptors as well as air superiority fighter aircraft, while commonly developing air-to-ground roles late in their careers.
The health service measures that best predict subjective health status should be identifiable. Following her further degree in clinical epidemiology and biostatistics, her interest turned to the development of methods to measure subjective health status.
Note that this is true even though knowledge is (at. least in part) a mental state. Thus it is a mistake to understand the. objective/subjective distinction as it is used in the philosophy of well-being as. involving merely the distinction between states of the world and states of mind.