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.
Navy Littoral Combat Ships (LCS) New Ships with New Missions Littoral means near-shore, and that's where these ships were made to operate. In 2002, America's Navy recognized the need for smaller, more agile ships that could defeat asymmetric threats such as mines, quiet diesel submarines and fast surface craft. Littoral Combat Ships come in two classes, Freedom and Independence. Their key advantage is that they are re-configurable. They can be fitted with mission modules specific to the task at hand. The Freedom Class has the more conventional hull of the two classes.