If somatic growth rate does not change, selection toward a younger age at maturity leads to a decrease in the maturation threshold.
However, despite the recovery in maturation thresholds, the observed average size at maturity has either remained stable or has decreased (Fig. 4).
"The maturity level, his frustration threshold — he just was not ready," said his mother, Carol Clarkston.
The pre-pubescent Taylor's diminutive stature and flat chest almost cost her the role because Browne needed somebody who could pass for a male jockey, while looking effeminate enough to appear on the threshold of maturity.
Parental authority cannot be used to outweigh the child's autonomy once that threshold of maturity has been reached (i.e., a Gillick-like test on a case-by-case basis).
On the other hand, if the interventions or procedures were more serious, for example, if SS's pregnancy might be at additional risk in a study involving a new drug with potentially serious side effects for the baby, then the threshold of maturity would appropriately be set higher.
In Rouse Up, O Young Men of the New Age (1983), a father has obscene nightmares as his son, Eeyore, stands on the threshold of sexual maturity.
In other words, there are both founding revolutions, in something like Butterfield's sense of of threshold events to maturity, and a never-ending series of later revolutions within an ongoing field, no matter how mature it is.
He died at 35, on the threshold of his artistic maturity.
Adele has said that "the other side" refers to the maturity she's discovered beyond the threshold of a rough-and-tumble youth.
