in the x direction, the water wants to flow in that direction) For a given hydraulic. conductivity, the vertical flow rate depends on the sum of the gravitational potential energy. gradient per unit weight of water (dz/dz =1) and the vertical gradient in soil water pressure.
Origin and spread of the 1278insTATC mutation causing TayâSachs disease in Ashkenazi Jews: Genetic drift as a robust and parsimonious hypothesis. Human Genetics 114 (4): 366â376. pmid 14727180.
There was also a second physician named Bernard Sachs who recognized the familial nature of the disorder and also observed numerous cases. He witnessed that Tay Sachs disease was most common in the European, Jewish origin. Â· When was Tay Sachs disease discovered?Tay Sachs disease was discovered in the year of 1880.