International comparison of dental-pain prevalence studies needs to be carried out carefully owing to the methodological differences among them, such as different age ranges, several options of case definition, difference in the assessment methods adopted, and difference in the time frame.
Data were analyzed using nonlinear mixed effects modeling, for the optimization, we used an improved method for calculating the gradient than the usually adopted finite difference approximation.
Two simulation strategies are adopted: the differences in the flutter mechanism between such two approaches are taken as an indicator of possible strong inaccuracies.
The adopted small differences in the parameters of the utility function generate sufficient variation in the life cycle path of labor supply, consumption, and savings.
Our evaluation design controls for pupil effects, school effects and teacher effects, and adopts a difference-in-difference methodology.
Inspired by the fact that differential signals are widely used in the circuit design to restrain the common mode noise, we adopt the difference of RSS from different APs as the characteristic signal of the radio map.
We adopt a difference-in-differences design using size- and performance-matched manufacturing firms as the benchmarks.
Adopting a difference-in-differences strategy, they investigate the effect of the change on wages 20 years later, but do not find any effect.
Finally, the thermal postbuckling problem is solved by adopting finite difference method and iteration method.
Such a conclusion has been drawn also from some results obtained by adopting Finite Difference schemes.
