Period was assessed using peak-peak and trough-trough durations averaged over as many cycles as possible for each individual tissue explant, discounting the first 24 h of data.
All other sweeps should still be governed by the harmonic mean of the population size averaged over a yearly cycle, which will be dominated by the small winter population sizes.
Indeed, if ds is the duration and as is the voltage amplitude of a spike, whereas dis and ais are corresponding parameters characterized by inter-spike interval, then the mean voltage level 〈v〉, averaged over N cycles expressed during time T, is equal to (N/T)(dsas+disais).
Doppler peak E and peak A velocities were averaged over three cycles.
Mean volumetric flow over cardiac cycle was calculated as systo-diastolic flow-velocity integral multiplied by area of luminal diameter averaged over cardiac cycle as obtained from radio-frequency signal (see above).
To determine the expiration/inspiration ratio of RR intervals during the paced breathing phase, maximum RR intervals during expiration and minimum RR intervals during inspiration were detected during each breathing cycle, averaged over all breathing cycles obtained and the expiration/inspiration ratio was calculated.
The cycle length of the FAB is calculated for different cycles and averaged over the number of cycles to obtain an average cycle length (i.e., CL) for the FAB. Figure 3 illustrates the simulation study.
For each neuron, a histogram of spike activity in the tilt cycle was generated, and then the activity was averaged over all successive cycles of a given test.
Echographic measurements of right and left hemi-diaphragm excursions were obtained using anatomical M-Mode and averaged over 3 respiratory cycles before surgery (E1), within 48 h following extubation (E2) and between 96 and 144 h after extubation (E3).
To increase signal to noise ratio, peak amplitude of the displacement "d" (nm) was averaged over 5 consecutive cycles.
