It is worth noting that these measurements are based exclusively on browser interaction and consequently some measures such as time spent particularly on slides need to be treated with a degree of suspicion.
Some measurements are based on a clinical assessment by a geriatrician others use performance-based tests or self-report questionnaires.
DBH and growth rates based on ring-width are not directly comparable as DBH is measured by a tape encircling a tree including the bark, while ring-width measurements are based on annual growth rings under the bark.
Dynamic Light Scattering measurements are based on the hydrodynamic properties of nanoparticles in constant (Brownian) motion measured over a time interval, and are particularly suited to measurement of spherical nanoparticles and colloids less than 5 nm.
Note: Ideology measurements are based on DW-NOMINATE scores.
Ideology measurements are based on DW-NOMINATE scores, which are based on congressional votes.
Note: Ideology measurements are based on DW-NOMINATE scores, which are based on Congressional votes.
Cortisol measurements are based on electrochemical impedance (EIS) technique.
(The measurements are based on attendance at seven parks, including Yellowstone and the Grand Teton).
The atmospheric measurements are based on two eclipses last year when Pluto, by chance, passed in front of distant stars, once in July and once in August.
Both the number of sensors and the frequency of measurements are based on federal rules requiring subregional representative samples.
