The horizontal axis identifies quarters relative to the quarter of entry into WIA (for WIA participants), or quarter of participation in the comparison activity (for comparison group members).
Results from a quasi-experimental study of 86 students (44 using NumberNet, 42 using a paper-based comparison activity) indicated that all students increased in fluency after completing these activities, while students who used NumberNet also increased in flexibility.
Hence, several previous studies may have measured the brain correlates of general comparison activity rather than effects related to number representations (Fias, Menon, & Szűcs, 2013; Van Opstal & Verguts, 2011).
Although the visual stimulation was the same in both studies allowing for a qualitative comparison, activity associated with WM load also differed to some degree across experiments according to the different instructions.
Besides that, NORMAN has organized interlaboratory studies on substances of priority interest in research [35, 36] and has more recently extended these inter-comparison activities to passive sampling [37], bioassays [38], and non-target screening methods [31].
From a statistical point of view, for both individual and group comparisons, activity counts per hour, percent time above 30 degrees and jerk time appear to be the most appropriate parameters.
Nevertheless, the yield of active enzyme was low in comparison with activities observed for the native enzyme (0.5 nkat/mg in comparison to 77.6 nkat/mg [1]).
For comparison, the activities for UCH-L3 and Uch37 with or without Rpn13 were measured simultaneously.
For comparison, photocatalytic activities of pure Bi2MoO6 and mechanically mixed samples (5% WS2 and 95% Bi2MoO6) have also been investigated.
It is the first expression system which enables direct comparison of activities between enzymes or variants from the supernatant.
