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.
Ragtime â with Joplin's work at the forefront â has been cited as an American equivalent of the minuets of Mozart, the mazurkas of Chopin, or the waltzes of Brahms. Ragtime also influenced classical composers including Erik Satie, Claude Debussy and Igor Stravinsky.