The objective is to minimize the weighted sum of stage-two machine completion times.
However, sleep latency, defined as the time from lights out to the first three consecutive epochs of sleep stage 1 or the first epoch of other stages of sleep (that is, sleep onset), and total duration of slow-wave sleep (SWS) (that is, the sum of stage 3 and 4 sleep) did not differ significantly between groups.
This is because perduring objects (and sums of stages) are four-dimensional, whereas enduring objects are three-dimensional, wholly present at each moment.
The manufacturing process leading to these end products includes many stages, and only the sum of these stages can be used to determine material substitution values.
A perdurant, such as the process of writing, exists as the sum of different stages at different times.
For the case of the samples obtained using the impactor, the radiocesium concentration values were the sum of all stages.
Through the use of the in vitro model, mean total emitted dose, calculated as the sum of all stages post-inhaler was predicted to be approximately 82% of the nominal dose (200 μg or 800 μg) and was similar for the four ethnic groups: 80.8%–81.8% at the FF 200 μg dose and 81.8%–82.9% at the FF 800 μg dose.
Separation fractions are established in the equivalent configuration by minimizing the total sum of the theoretical stages and restricting the composition of the output streams to a desired value.
The following were considered as dependent variables: sleep onset latency, defined as stage 1 latency; stage 2 latency; total sleep time (TST), defined as the sum of time spent in stage 1, stage 2, slow-wave sleep and REM; total bedtime (TBT), sleep efficiency index (SEI = TST/TBT×100), number of awakenings, wakefulness after sleep onset, percentage of each sleep stage and percentage of arousals.
For each stage group i in each pen of site j, the relative abundance RA ij and the relative frequency are computed as RF ij : R A ij = A ij A i. where A ij is the mean abundance of stage group i across pens of the site j, A i. is the sum of mean abundances of stage group i over all sites.
