All Answers (3) 1  Dear Sam Fenwick, The reflux ratio is indeed a sensitive operating variable and affects a daily profit. The optimal reflux ratio is closely related to the feed mole fraction, feed quality, relative volatility, and a separation factor which itself was a function of overhead and bottoms composition.
It is said that there are only 20 known cases of Pretzel Syndrome, a genetic disorder that occurs exclusively in the Plain Sect Communities. Learn about this tragic disease that claims most of its victims by age six.
General Discussion. Tietze syndrome is a rare, inflammatory disorder characterized by chest pain and swelling of the cartilage of one or more of the upper ribs (costochondral junction). Onset of pain may be gradual or sudden and may spread to affect the arms and/or shoulders.igns & Symptoms. Tietze syndrome is characterized by mild to severe localized pain and tenderness in one or more of the upper four ribs. The second or third ribs are most often affected. A firm, spindle-shaped swelling occurs in the cartilage of these ribs.