Receptor: 1. In cell biology, a structure on the surface of a cell (or inside a cell) that selectively receives and binds a specific substance. There are many receptors.
The most common is EPNS (Electro Plated Nickel Silver) but many other symbols are used: 1  EPBM (Electro Plated Britannia Metal). 2  EPCA (Electro Plated Copper Alloy). 3  ESM (Electro Plated Silver Mounts).he most common is EPNS (Electro Plated Nickel Silver) but many other symbols are used: 1  EPBM (Electro Plated Britannia Metal). 2  EPCA (Electro Plated Copper Alloy). 3  ESM (Electro Plated Silver Mounts).
First of all, LPN is an acronym that stands for licensed practical nurse. Forty-eight American states and most of the the Canadian provinces utilize the title of LPN. The remaining two states in the union (California and Texas) use the acronym LVN, which stands for licensed vocational nurse.PNs can and do work in acute care hospitals, although this type of employment seems to be on the decline in many regions in the United States due to issues surrounding scope of practice.