It represents the time from the end of ventricular depolarization to the start of ventricular repolarization. ST elevation may indicate myocardial infarction or pericarditis. ST depression may indicate ischaemia.
Marijuana has been illegal for less than 1% of the time that itâs been in use. Its known uses go back further than 7,000 B.C. and it was legal as recently as when Ronald Reagan was a boy.The marijuana (hemp) plant, of course, has an incredible number of uses.arijuana has been illegal for less than 1% of the time that itâs been in use. Its known uses go back further than 7,000 B.C. and it was legal as recently as when Ronald Reagan was a boy.
With Anslinger and the Federal Bureau of Narcotics vocally advocating for its passage, the Congress passed the Marijuana Tax Act and it was signed into law on August 2, 1937 (Inciardi, 1992, p. 24). Modeled after the Harrison Act, it essentially placed marijuana into the same category as the cocaine and opium products.