(PWV), the velocity peaks, the average velocity of a cardiac cycle ([V.sub.mean]), and the indexes that relate the systolic and diastolic velocities: pulsatility index (PI), given by (PSV-EDV)/[V.sub.mean]; resistance index (RI), given by (PSV-EDV)/PSV; and peak ratio (PR), ...
Voluntary conservation of endangered species: when does no regulatory assurance mean no conservation? Voluntary conservation agreements are becoming increasingly important in implementing the Endangered Species Act on private land. We analyze when such agre... C Langpap,JJ Wu - 《Journal of Environmental...
This means that the mean period of the quadrennial wave is a multiple of the mean period of the annual QSW, that is, 4 years precisely. Stimulation of the quadrennial QSW from the ENSO results from the evaporation of subsurface warm waters when they are raised to the surface in the ...