A device configured to be coupled to a user’s waist, the device comprising a body comprising a front side, a rear side, and at least one pocket formed on one of the front and rear sides, at least one fastener extending from the body for coupling the body to the user, and a counter coupled to the body for providing a visual indication of a counted value. The artificial lung comprises an electrically actuated three-way valve, a casing containing parallel loops of oxygenator tubes for oxygenation of blood by an atmosphere of circulating air, and an air circulation driving fan powered by an energizing system. , as well as to processes for producing them. As the air is withdrawn by the vacuum source, the plurality of bellows collapse, and the outer lip forms a tight seal against the object. Based on the resent trade parameter and some rules and operators one or more monitoring actions is executed. In one or more embodiments a method can include applying a heuristic to a first preprocessor directive symbol from a build file or sub-build file of one or more build files or source code files and a second preprocessor directive symbol from a source code file.