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.
Expanded polystyrene (EPS) has many useful properties. It can be used as an insulator against heat and the cold. It is good at absorbing shocks and protecting delicate items, for example your head when used as part of a cycle crash helmet.xpanded polystyrene (EPS) has many useful properties. It can be used as an insulator against heat and the cold. It is good at absorbing shocks and protecting delicate items, for example your head when used as part of a cycle crash helmet.