Crystallization by slow cooling creates non-statistical concentration fluctuations which result in excess forward SANS, so a melting point difference of 1°C is still sufficient to trigger 'clustering' or 'segregation' of PE and DPE.
After a statistical analysis, concentrations of Sn, Zn, Hg, Cu and Cr (among all physico-chemical analyzed parameters), in order of importance, were the most important factors that divided the two groups of samples (more and less toxic samples).
For statistical analysis, concentrations below the detection limit were converted to a value of 0.5 times the lowest value of the calibration curve.
For the purpose of statistical analysis concentrations of cortisol below detection limit were assigned a value of 7 nmol/l.
For statistical purposes, concentrations below LOQ were replaced with f × LOQ, with f being the fraction of samples above LOQ.
When unfragmented specimens were excluded from the statistical analysis of concentration measurements the statistically significant differences were confirmed between 1500 bp, 500 bp and 150 bp fragments (p<0.0001, F= 60.42, F= 40.18 and F= 15.98 for 10x, 100x and 1000x diluted samples, respectively).
The influence of pore-scale dispersion on concentration statistical moments in transport through heterogeneous aquifers.
For statistical analysis, the concentration dependence of the peak current was measured in four data sets.
For statistical purposes, the concentration of 5OH-MEHP was log-transformed and also categorized into three exposure groups.
In fact, there was a significant statistical association between concentration reductions and participant-reported new furniture, electronics, and flooring (p < 0.05), suggesting that PentaBDE is no longer present in new household items.
Statistical analyses of concentration values were performed using SPSS 19.0 for Windows (SPSS Inc., Chicago, IL, USA) by two-tailed Student's t-test on natural log-transformed data for which a value of P<0.05 was considered significant.
