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
Catholic resistance to Nazi Germany oust Hitler. The Pope's Private Secretary, Robert Leiber acted as the intermediary between Pius and the Resistance. He met with Müller, who visited Rome in 1939 and 1940. Later in the war, Leiber remained the point of contact for communications from Colonel-General Ludwig Beck in the lead up to the 1944 July Plot. The Vatican considered Müller to be a representative of Colonel-General von Beck and agreed to offer the machinery for mediation. Oster, Wilhelm Canaris and Hans von Dohnányi, backed by Beck, told Müller to ask Pius to ascertain whether the British would enter negotiations with the German opposition