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.
The mystery is why it appeared here, seemingly with such suddenness. Tay-Sachs is associated with East European Ashkenazi Jews and their descendants. It was rarely even heard of in this staunchly Catholic slice of the country settled by French Canadians. Then Renee Abshire turned the key and found the first clues of Iota's secret.