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.
Czech Republic Marijuana Laws. The production and possession (but not the consumption) of cannabis became a punishable crime in Czechoslovakia in the year 1938. The possession of cannabis (less than 15 grams) is not a crime and consumption of cannabis is not punishable ever since the year 1992.