Branch Retinal Artery Occlusion - Pathophysiology. 1  Most commonly, a branch retinal artery occlusion occurs secondary to an embolus. Emboli typically originate within vessels upstream where they dislodge and travel within the circulatory system to ultimately become lodged downstream in a vessel with a smaller lumen.
Ragtime is a musical form or style that is defined as a syncopated melody (usually in 2/4 time) over a regular, march tempo bass line. Improvisation was common but little of that aspect has been preserved.
Confidence votes 15. Ragtime music is the rhyme of how people danced and played when they where back in the 1800s. The Jim Crow Era was a post of the civil war Ragtime Music The main instrument used is the piano It was most popular between 1897-1918 The most famous rag-time composers were: Scott Joplin, Joseph Lamb, James Scott. Different styles of ragtime The Cakewalk, is an traditional African American form of music.