The moderately negative carbon isotope values indicate a normal marine signature which may be slightly modified by a variable contribution of CO2 derived from sedimentary organic matter decay.
This is supported by the variable contribution of the loci detected for any of the three developmental stages to the genotypic variance at BM1, BM2 and BM3, respectively.
Mineralogy of these deposits are typical for the region, dominated by quartz and feldspars with variable contributions of carbonate, amphibole, garnet, epidote, biotite, and muscovite in the sand fraction and illite, smectite, kaolinite, chlorite in the silty muds [1, 39, 43, 44].
In this light, the probe dependence, and thus the measurement depth dependence, of the StO2 downslope and hyperemic parameters could therefore be explained by variable relative contributions of (sub dermal tissue and muscular tissue to the NIRS signal for the different probing depths.
In addition, a built-in permutation-based measure of variable contribution to prediction accuracy allows to rank variables by their importance.
Based on the variable contribution estimates generated by the jackknife plot and the correlation coefficients, we evaluated which variables to retain for further evaluations.
Furthermore, the study of individuals with schizotypal characteristics such as hallucination-proneness has the advantage that results are not confounded by the contribution of variables such as hospitalization, medication effects, illness duration, and cognitive deficits.
In addition, the genetic mapping of quantitative trait loci (QTL) is hampered by genetic heterogeneity, variable phenotypic contributions of each QTL, epistasis and gene-environment interactions [ 18].
Furthermore, variable contributions to monitoring statistics are also derived by calculating the derivative of the monitoring statistics with respect to the variables.
The maximum score was determined by the estimated contribution of the variable to overall health of the mouse): weight loss (0-4 pts), activity (0-4 ptime tome to return to upright position (0-6 ptstatetate of skin/fur (0-3 postureosture (0-2 pts), eye discharge or protrusion (0-4 pts), respiration rate (0-4 pts), irregular/labored breathing (0-4 pts), epilepsy, limb paresis or ataxia (0-10pts).
