More precisely, educational variables12 are instrumented by their lagged levels in the differenced equation and by their lagged differences in the level equation.13 The implicit assumption is that changes (the level) in (of) the dependent variable productivity, salary costs or profits—in one period are uncorrelated with lagged levels (differences) of the latter.
The cluster analysis clearly separated the toxigenic strains from the non-O1, non-O139 strains, but also revealed genetic differences of the latter strains correlating with the nature of the clinical infection.
This analysis compares the sum of all gene clusters present in both strains (similarity score), the sum of all clusters not present in both strains (difference score) and the remainder of the latter subtracted from the former (comparison score) to provide an objective metric to quantify the relationship between any two strains.
This already points to a decisive difference; changes of the latter kind take time.
The rms difference of this latter model is abnormally large compared to other extrapolated models, suggesting a more risky extrapolation scheme.
Comparisons with results reported in the sequence-based study by the Stanford group (Table 3 in [ 24]: PIs, 78.2%; NRTIs, 75.9%; and NNRTIs, 83.0%) reveals statistically significant differences for the latter two classes of inhibitors (PIs, p = 0.45; NRTIs and NNRTIs, p < 0.05), reflecting our prediction superiority with the NRTIs and that of the Stanford group with the NNRTIs.
Morrison et al. compared standard analgesics with EP-performed ultrasound-guided femoral nerve blocks and found a significant difference in favor of the latter.
Furthermore, a Darboux transformation of a reduced differential-difference equation system of the latter discrete hierarchy is obtained.
Clinical cure of tuberculosis leads to a significant increase in all T cell profiles evaluated (Th1, Th2, Th17, and Treg, although with differences among subtypes of the latter).
We expect a main effect of Group in a one-way ANOVA, with post-hoc independent t-tests revealing significantly fewer steps for the UC control group than for both AT and CT training groups, in the absence of a significant difference between the latter groups.
