Cardiac conditions. Certain subtypes of troponin (cardiac I and T) are very sensitive and specific indicators of damage to the heart muscle (myocardium). They are measured in the blood to differentiate between unstable angina and myocardial infarction (heart attack) in people with chest pain or acute coronary syndrome.
Virtual reality (VR) typically refers to computer technologies that use virtual reality headsets to generate the realistic images, sounds and other sensations that replicate a real environment or create an imaginary setting. VR also simulates a user's physical presence in this environment.
In some European navies (e.g., that of France), and in the Canadian Forces' French rank translations, the rank of rear admiral is known as contre-amiral. In the German Navy the rank is known as Konteradmiral, superior to the flotilla admiral (Commodore in other navies).