Vascular resistance recent results showing the sheath flow surrounding the plug flow in a vessel, the sheath flow size is not neglectible in the real blood flow velocity profile in a vessel. The velocity profile is directly linked to flow resistance in a vessel. The viscosity variations, according to Thurston, are also balanced by the sheath flow size around the plug flow. The secondary regulators of vascular resistance, after vessel radius, is the sheath flow size and its viscosity. Thurston, as well, shows that the resistance R is constant, where, for a defined vessel radius, the value η(δ)/δ is constant in the
German resistance to Nazism of resistance in the Third Reich. In particular, debate has focused around what to define as "Widerstand" (resistance). Within both the Federal Republic of Germany and the German Democratic Republic, the memory of "Widerstand" was harnessed after 1949 as a way of providing legitimacy to the two rival German states. In East Germany, the focus was unabashedly on celebrating the KPD, which was represented as the only anti-fascist force in Germany; non-Communist resistance was either ignored or slighted. In East Germany, historical work on the subject of "widerstand" was highly politicized and portrayed members of the KPD resistance as heroes.