In the framework of a comprehensive study of the ceramic feedstocks in molten conditions, the viscoelastic behavior of zirconia-filled polymers has been studied over a broad span of particle concentrations (from 0 to 42 vol% i.e., from 0 to 82 wt%).
50 nmol/l concentrations were used in some calculations to span the range of concentrations reported in vivo.
The spanning of ambient concentrations external to the chamber during logging was performed to reduce the incidence of leaks between the chamber and the outside atmosphere and represents the best estimate of flux with the minimum leakage error [ 33].
These studies, which ranged from exposures lasting a few weeks to longer than 2 years, spanned a range of concentrations and durations that would be sufficient to show any changes in hematology.
Recent studies have demonstrated that the accumulation of radiation damage increases the apatite He retentivity, so that apatites with a span of effective U concentrations, eU, that experienced the same thermal history may be characterized by a range of closure temperatures.
According to the linear pharmacokinetics, this range of infusion rates coincided with a comparably large span of plasma epinephrine concentrations (0.8 to 99 μg/L).
Interestingly, the worst performance corresponded to Jurkat, the cell line with the narrowest relative span in the range of concentrations among the samples; although even under this condition, more markers were detected amongst the best correlated genes than would be expected by chance (see Table 2).
Different factors might account for this finding: younger children might have a lower span of attention and concentration or more difficulties in recalling the aspects asked about in the survey [ 37].
Since LOQs are compound-specific variables, they spanned a large range of concentrations.
Although the GM for cotinine was < 1 μg/L, the range of concentrations spanned three orders of magnitude (CV = 0.31).
