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.
Ragtimeâs upbeat style is perfect as a happy and inspiring backdrop for playtime! This collection focuses on ragtime, an American music style from more than 100 years ago, a long time before the invention of CDs and iPods. Back then, sound was recorded into things like wax, resin, paper and metal. The paper recordings were played by machine instruments.