We also calculated total lifespan as the number of days lived from the egg stage.
For the survival data, we calculated mean lifespan and used the associated pooled standard deviation to calculate the standardized mean difference plus 95% confidence intervals.
vRPM enables comparisons in performance between an SSD and a hard disk drive (HDD) or another SSD, and LDE calculates the lifespan of a solid-state drive.
To get an impression of the years of life a radiation victim lost, we calculated a hypothetic lifespan from the age at which a future victim started his radiation work by adding a cohort-based life expectancy at that age and year Anno Domini, using tables for the civil population and distinguishing between male and female persons.
The ALS-TDI SOD1G93A SJL colony maintained by Genzyme Therapeutics has a median lifespan, calculated over 5000 mice, of 131 days.
The maximal and minimal lifespan (calculated as the mean of the oldest or youngest 10% of mice within a genotype) of Dgat1−/− mice were also extended by ~3 and 6 months, respectively (Table 1; p < 0.0001).
Hence, maximum lifespan, calculated as the median age of the oldest 10% of the population to die, was significantly increased by approximately 8% (P <0.0001; log-rank) for daGAL > UAS-InRDN dfoxo− flies (66 days, n = 14) relative to both genetic controls (54 days, n = 11 for daGAL/+ dfoxo− flies and 59 days, n = 16 for UAS-InR-DN dfoxo− flies).
For each experiment, we calculated the following parameters: mean lifespan, median lifespan, minimum and maximum lifespan, lifespan lower and upper quartiles, lifespan of the 10th and 90th percentiles; variance, standard deviation, and standard error for the mean lifespan (Table 1).
We calculated the life period of sensors and using priority levels and threshold values, we prolong the lifespan of sensor nodes.
We calculated R0, lifetime reproductive success, as the average number of offspring produced by a female, as well as mean lifespan for each clone.
Age- and sex-specific life expectancy across the lifespan was calculated for three periods (1989-1992, 1995-1998, and 2001-2004) for the entire Québec population residing in 162 community groupings ranked according to decile of material deprivation.
