PSY 270 UOP Courses / uoptutorial -Psy 270 week 1 checkpoint research methods appendix b psy 270 week 1 dq 1 and dq 2 psy 270 week 2 checkpoint models of abnormality appendix c psy 270 week 2 assignment clinical assessment psy 270 week 3 checkpoint
A contemporary use of nerve gas occurred during the Iran-Iraq war of 1984 â 1988. In this conflict, the United Nations confirmed that Iraq used tabun and other nerve gases against Iran.
The gases nitrous oxide, ether, and chloroform were first used as anesthetics in the nineteenth century, ushering in the modern era of anesthesia. Nitrous oxide, or laughing gas, was discovered as an anesthetic by English chemist Humphry Davy (1791â1867) in 1799.