A number of clinical trials have shown that the primary component of this bark from an African tree can improve sexual dysfunction associated with a drug used to treat depression. This herb has been linked to a number of side effects, including increased blood pressure, fast or irregular heartbeat, and anxiety.
A professional learning community (PLC) is an extended learning opportunity to foster collaborative learning among colleagues within a particular work environment or field. It is often used in schools as a way to organize teachers into working groups.
Relays are used to isolate one voltage level from another. A PLC may be used to control the operation of a medium-voltage motor, perhaps 2,300V or 4,160V. A relay is used to energize the starter, which, in turn, switches the motor voltage while the PLC controls the relay.