Three points to remember: 1  Ghrelin is a fast-acting hormone that plays a vital role in meal initiation and contributes to weight gain.  Leptin mediates long-term regulation of energy balance and suppresses food intake, thereby inducing weight loss.
NORTH AMERICA. HarmonyAIRÂ®. Surgical Booms. HarmonyAIR Surgical Booms â also known as equipment columns and supply heads â have a sleek and compact design, allowing the nurse line of sight to the sterile field and the surgeon unrestricted access to the patient.
1 Boom â use an adjustable boom winch to recover vehicles from a ditch, over an embankment, or any place the vehicle cannot be safely reach backing-up. 2  Some booms are fixed, some heavy pivoting A-frames, others pneumatically powered telescoping tubes.