The sensitive analysis and comparison on ratios between public and private sector indicate that to achieve the optimum ratio of savings to costs, design of recycling centers and selection of governmental instruments are determined by the priority list: (1) low extra revenue from location advantage; (2) low profit; (3) low unit recycling cost.
The average time (Standard Deviation) taken to score each guideline with each instrument was calculated per tester, and differences between testers and instruments were determined using ANOVA models.
Using a similar search process, HEE quality appraisal instruments were determined possibly relevant if they provided explicit criteria against which the quality of economic evaluations could be appraised.
The validity of the self-reported instruments was determined by the comparison between self-reported measures and the observer measures - the reference standard.
For example, appropriate use of dental instruments was determined by the questions "Do you deliberately choose the size of dental instruments?" (response options yes/no), and "Please write down the diameter of the tools you handle the most".
Cut-off points for all instruments were determined as the point on the curve nearest to the upper left-hand corner where optimal sensitivity and specificity is expected (where sensitivity + (1-specificity) is minimal) [ 27].
The ultimate sensitivity of the automated instrument is determined on the basis of a generic least square differences fitting procedure while the instrumental resolution is defined on the basis of realistic, rather than optimal, scenarios: the resolution of the rotation measurements are in the order of 8.7 ∗ 10−5 rad while the resolution of the displacement measurements are better than 5 μm.
In our system, the transit time of the sphere within the instrument is determined by means of inductive proximity sensors, a PT100 sensor is used for temperature whose effects on Coil are accounted for by means of an ad-hoc algorithm.
