Psychiatric and substance abuse hospitals employed only 3,210 security guards, according to the BLS, less than 8 percent of all hospital guards. However, they were the best paid in the industry, earning an average of $35,000, or $16.83 an hour.
So the basic differences between Cavalry, Artillery and Infantry are as follows. 1  Infantry: Infantry refers to the soldiers on foot. 2  Cavalry: It generally means mounted soldiers. 3  Artillery: It uses large and long ranged weapons.
What is the difference between dorsal and ventral? A: Dorsal refers to the back side of the body whereas ventral refers to the front side of the body. When discussing bipeds, these terms are interchangeable with the terms posterior and anterior.. Continue Reading. These terms can become confusing when talking about both bipeds and quadrupeds.