Application of this protocol in in vitro guinea-pig left-ventricular myocytes demonstrated that both voltage- and calcium-driven instabilities underlie alternans, and that the relative contributions of the two systems change as a function of pacing rate.
The calcium transients became smaller as a function of pacing frequency at the same time when the diastolic [Ca2+]i rose.
The amplitude of the LVI waveform was also sensitive to changes in cardiac activity, decreasing as a function of pacing rate and related filling-time reduction, and increasing during adrenergic stimulation.
That quality, difficult to define, is basically a function of canny pacing, not only in tempo but also in dynamics and in the relative force of climaxes, one carrying logically and proportionately to the next.
Figure 6 displays the infarct size achieved using the various pacing algorithms, plotted as a function of the total duration of pacing.
The fast pace, a function of Hawks's dry, basic style, makes it a down-in-one read, and it wears its pulpy origins on its sleeve (a poster on the wall of one character's flat declares "Nubots don't dream").
The results vary at most 25%, tending to increase slowly in a logarithmic pace as a function of aspect ratio.
Saltational evolution does not imply genome-wide changes, as this might suggest that chance, in concert with an overall rapid rate of change, and not selection (in the typical Darwinian sense), are producing marked evolutionary differences simply as a function of a pervasive increase in the pace of evolution throughout a clade [4].
"The pace of strikes is a function of our increased understanding of AQAP and ISIS-Y networks and operations," said Col. John Thomas, a CENTCOM spokesman.
The pace of change in the CO2/CO ratio as a function of temperature depends on the difference in slope between the adiabatic path and the CO2/CO contour curve.
