To detect heart sounds, the patient should be lying down and examined in a quiet room. Left-sided S3 is best heard at the apex of the heart (the lower pointed end of the heart) with the patient lying on his left side. It is a low-pitched sound and heard best using the bell of the stethoscope with light pressure.
Adorable animal families that will make you aww. Polystyrene is a type of polymer with thermoplastic properties produced from the petroleum-derived monomer, styrene. In solid form, it is a colorless and rigid plastic, but it may also be returned to a liquid state by heating, and used again for molding or extrusion.
Well, I can tell you with absolute authority that polystyrene melts in the microwave. Here's a chunk of polystyrene cut from a foam shipping container. I double checked with the website (Propak), and the stuff is polystyrene.ell, I can tell you with absolute authority that polystyrene melts in the microwave. Here's a chunk of polystyrene cut from a foam shipping container. I double checked with the website (Propak), and the stuff is polystyrene.