Finally, to asses whether TBEV triggers the cytopathic effect (CPE) in primary rat astrocytes, we recorded fields of view of TBEV infected primary rat astrocytes and control Vero E6 cells and measured their viability for 14 days (Figure 7).
Over the years, several other programs evolved until HUD was created by the members of the Presidentâs cabinet. The post was created on September 9, 1965 when President Lyndon B Johnson signed the Department of Housing and Urban Development Act into law.
Control theory was further advanced by Edward Routh in 1874, Charles Sturm and in 1895, Adolf Hurwitz, who all contributed to the establishment of control stability criteria; and from 1922 onwards, the development of PID control theory by Nicolas Minorsky.