usually segmental underdevelopment of the ureter causing stenosis and hydronephrosis. ureteral obstruction. may be caused by intraluminal lesions, e.g. urolithiasis, or as part of pyelonephritis or by external compression of the ureter or as a congenital defect. Sudden blockage causes acute abdominal pain that lasts for several hours.
Chuseok (ì¶ì; ç§å¤; [tÉÊ°u.sÊkÌ]), originally known as hangawi (íê°ì; [han.É¡a.É¥i]; from archaic Korean for the great middle (of autumn)), is a major harvest festival and a three-day holiday in Korea celebrated on the 15th day of the 8th month of the lunar calendar on the full moon.
Google celebrates Isaac Newton's birthday with a falling apple. Today, Google has a surprising animated logo to celebrate the birthday of one of the world's greatest scientists, Sir Isaac Newton, who was born on Christmas day in 1642. Monday 4 January 2010 09.00 EST First published on Monday 4 January 2010 09.00 EST.