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.
Wiedemann-Rautenstrauch syndrome (WRS), also known as neonatal progeroid syndrome, is a very rare genetic disorder characterized by an aged appearance at birth (old man look) growth delays before and after birth (prenatal and postnatal growth retardation), and deficiency or absence of the layer of fat under the skin (subcutaneous lipoatrophy).