Anxiety and depression are the most common psychological causes of fatigue in cancer patients. The emotional stress of cancer can cause physical problems, including fatigue. It's common for cancer patients to have changes in moods and attitudes. Patients may feel anxiety and fear before and after a cancer diagnosis.
N.F.P.A. now requires 4 heat sensors and one instruction label per ladder section. Each heat. sensor has an expiration date printed on them. Any expired labels must be replaced. Place 2 heat. sensor labels below the 2nd rung from the top of each section (1 on the right rail - 1 on the left. side) inside the rail.
Occupancy sensors overcome this problem by automatically turning lights off or on as required. There are two types of occupancy sensors: passive infra-red (PIR) and ultrasonic. PIR sensors sense infra-red heat radiated from the human body (10 micron wave lengths). Because there can be other sources of heat at the same temperature, the sensors respond to changes in position of the source of heat.