We quantified denitrification fluxes from the shallow saturated zone of an agricultural landscape using a topographic index-denitrification model, which facilitates scaling of in situ denitrification rates across the landscape based on frequency and duration of saturated conditions.
Vigorous leisure time physical activity was calculated based on frequency and duration.
Health behaviors measured were current smoker (yes/no), alcohol consumption (grams/day), and intensity of physical activity (based on frequency and duration of physical activity and categorized as high, medium, and low).
Health behaviors measured were smoking (current, former, and nonsmoker), frequency of alcohol consumption (less than once per week, at least once per week, and at least once per day), and intensity of physical activity (based on frequency and duration categorized as "high," "medium," and "low") (20).
The OIB scale was used to assess other injurious behavior (OIB) by providing quantitative ratings (scored from 1 to 7) based on frequency, severity and duration for 15 types of OIB (see Table 1).
The occupancy model simulates annual building occupancy rates comprised of weekly values based on the frequency, duration, and seasonality of occupants' long vacancy activities.
These companies can do analysis on this data and even determine types of relationships based on the frequency, duration, and timing of calls (e.g. most people tend to call their mom on Mother's Day).
Using descriptive ethological diagrams, based on mean frequency, duration and latency of every behavioral pattern, we provided an overview of the spontaneous behavioral patterns displayed by the experimental groups in the open tank.
Participants were asked about cycling only at ages 31, 36, and 43 years, with a single 3-level categorical variable being derived at each age based on the frequency, duration, or distance of activity.
