The individual components of the vasti muscle group and the rectus femoris were clamped and subsequently loaded based on the muscle cross-sectional area proportions (111N, 98N, and 67N for rectus femoris/vastus intermedius, vastus lateralis, and vastus medialis, respectively).
The definition of life is controversial. The current definition is that organisms maintain homeostasis, are composed of cells, undergo metabolism, can grow, adapt to their environment, respond to stimuli, and reproduce.
Mean life. Written By: Mean life, in radioactivity, average lifetime of all the nuclei of a particular unstable atomic species. This time interval may be thought of as the sum of the lifetimes of all the individual unstable nuclei in a sample, divided by the total number of unstable nuclei present.