A continuous visual fixation (no saccades) of a randomly defined duration of 2 2.5 s was immediately followed by the delivery of a juice reward using a gravity-fed dispenser.
There is currently no detrimental survival effect for treatment for a defined duration (at least 6 months) followed by a treatment break compared with continuous treatment until disease progression.
Post-medical school anesthesia residency duration varied: three years (Brazil), four years (USA), five years (Canada and Switzerland), six years (Japan and Denmark) to nine years (UK), as did the number of explicitly required clinical rotations of a defined duration: zero (Denmark), one (Switzerland and UK), four (Brazil), six (Canada), and 12 (USA).
In the virtual human controller, the behavior was executed during the defined duration of each action.
Generally, such programs have a defined duration: one year, two years, four years, etc. Competency-based education does away with the defined duration and credit hours, replacing time with mastery.
Moreover, the a priori defined duration of effect criteria was based on subject assessment of the waning of treatment effect.
Obese-years was calculated at each examination as the defined level of obesity (in 'obese units') multiplied by the defined duration of obesity (in years).
In addition, for hypothesis-generating purposes, 24 hours was an empirically defined duration for the time-to-treatment analyses for purposes of simple tabular presentation.
Released HSV-2 survives in the genital tract for a defined duration (1/ c), during which time it can transfer from neurons and infect local epithelial cells.
