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.
How Cannabis was Criminalised. Cannabis first became illegal in the UK, and most of the rest of the world, on 28th September 1928 when the 1925 Dangerous Drugs Act came into force.There were no British domestic reasons, no lobbying for or against prohibition, and no Parliamentary debates.n 1945 there were only 4 prosecutions for cannabis offences in the UK, and 206 for opium. In 1950 for the first time ever there were more prosecutions for cannabis than for opium and manufactured drugs put together - 86 against 41 opium and 42 others.