Finally, measures such as the Frailty Index, which is independent of chronological age might be used to determine a common scale of aging for all mouse strains.
Also, to the extent that aging rates change exponentially with age, logarithmic scaling of age may provide a more natural measure.
For example, Duncan et al. [ 30] investigated the scaling of age at first reproduction in 1197 species of mammal, and obtained an exponent that is significantly lower than the 0.25 predicted by the MTE.
There is a caveat in our experimental design, which due to the lack of a standardized scale of biological age equivalence between dwarf mice and normal mice considered animals of the same chronological age for each genotype.
In the second model, namely, the obstetric model of death, time is measured on the scale of gestational age with fetuses censored at birth or death.
Graffiti in the tunnels in the mountain drawings, advertisements, people's names can be arranged as a sort of timescale of the ages of quarrying, just as the scale of the ages of the Cretaceous rise through Berriasian, Valanginian, Hauterivian, Barremian, Aptian, Albian, Cenomanian, Turonian, Coniacian, Santonian, Campanian, and Maastrichtian time.
Graffiti in the tunnels in the mountain — drawings, advertisements, people's names — can be arranged as a sort of timescale of the ages of quarrying, just as the scale of the ages of the Cretaceous rise through Berriasian, Valanginian, Hauterivian, Barremian, Aptian, Albian, Cenomanian, Turonian, Coniacian, Santonian, Campanian, and Maastrichtian time.
The AAS-Thai could potentially be the first culturally contextualized, relevant, and valid multidimensional scale of active aging in Thailand.
The aim of this study was to develop a culturally relevant composite scale of active aging for Thai adults (AAS-Thai) and to evaluate its reliability and validity.
