Asterixis: one type of negative myoclonus. Young RR, Shahani BT. Asterixis is a disorder of motor control characterized by irregular myoclonic lapses of posture affecting various parts of the body independently. These lapses are caused by involuntary 50- to 200-msec silent periods appearing in muscles (even antagonistic groups of muscles) which are tonically active.
Andrew Johnson (December 29, 1808 â July 31, 1875) was the 17th President of the United States, serving from 1865 to 1869.Johnson became president as he was vice president at the time of President Abraham Lincoln's assassination.A Democrat who ran with Lincoln on the National Union ticket, Johnson came to office as the Civil War concluded.ndrew Johnson (December 29, 1808 â July 31, 1875) was the 17th President of the United States, serving from 1865 to 1869.
Vice President of the Confederate States of America. From Wikipedia, the free encyclopedia. The Vice President of the Confederate States of America was the office held by Alexander H. Stephens of Georgia, who served under President Jefferson Davis of Mississippi from February 18, 1861 to May 11, 1865.