1.1. Flows driven by a constant pressure gradient through a pipe of circular cross section When the flow of a Newtonian fluid in a pipe of circular cross section is driven solely by a constant pressure gradient, the resulting velocity distribution is a quadratic function of the radial distance from the axis of the pipe. The velocity profile of such a flow has, therefore, a parabolic distributio...

We present an analytical model for the cross section of a turbulent, radiative jet or wake. This model is appropriate for modeling HH jets, or “wakes” left behind by “astrophysical bullets”. Even though the model is very simple, it has the benign property of only having four free parameters (the outer radius of the beam, the axial velocity, the velocity at the edge of the beam, and the turbulen...

Background and Purpose We evaluated the utility of blood flow velocity measurements by transcranial Doppler ultrasonography as a tool to indirectly measure cerebral perfusion during cardiopulmonary bypass. Methods We simultaneously measured blood flow velocity in the middle cerebral artery and physiological variables in 18 patients undergoing cardiac surgery under hypothermic cardiopulmonary by...

Abstract. The meta-plot is a descriptive visual tool for meta-analysis that provides information on the primary studies in and results of meta-analysis. More precisely, portrays (1) precision statistical power meta-analysis, (2) estimate confidence interval random-effects (3) cumulative yielding robustness check meta-analytic effect size with respect to studies’ precision, (4) evidence publicat...

Landesberg, Amir, and Samuel Sideman. Force-velocity relationship and biochemical-to-mechanical energy conversion by the sarcomere. Am J Physiol Heart Circ Physiol 278: H1274–H1284, 2000.—The intracellular control mechanism leading to the well-known linear relationship between energy consumption by the sarcomere and the generated mechanical energy is analyzed here by coupling calcium kinetics w...