The model appears capable of predicting α4β1 integrin antagonist activity to within a factor of five for compounds within its domain of applicability.
It is not only higher by a factor of 5 than the compound unannealed, but it is also by a factor of 1.3 higher than that annealed for 100 days.
From the left-panel of table 2 we can see that, by increasing exposure time from six hours to five days, the estimated power was doubled for the more potent compound Wy14,643, and increased almost by a factor of four for the weaker compound fenofibrate.
The uncertainty associated with natural emission estimates ranges from less than 50% for midday summer isoprene emission from some locations to about a factor of 10 for some compounds and landscapes.
It is shown that the resolution of a conventional Fresnel zone plate can be improved by a factor of 10 by designing a compound zone plate with six operative orders, with the width of the outermost zone remaining unchanged.
The affinity-related IC50 values of both assays indicated an improved affinity of at least a factor of 3 of the dimeric compound [natGa]7 as compared to the monomer [natGa]6 (P < 0.05).
This may in part relate to the poor water solubility of the flavone compounds, a factor of vital importance in the aqueous environment of the zebrafish.
EEQs can be defined as follows: (1) EEQ i = C i × EEF i, where C i is the concentration of compound i in the sample, and EEFi is the estradiol equivalency factor of compound i.
The bio-magnification factor (BMF) for each of the compounds was calculated as BMFX = [CXpred]/[CXprey], where BMFX is the biomagnification factor of compound X, [CXpred] is the mean concentration of compound X in the predator, and [CXprey] is the mean concentration of compound X in the prey.
Exposure to the metabolite exceeded that of the parent compound by a factor of approximately four.
For DAI GC MS the detection limit for this compound was a factor of three lower than that for DAI GC ECD, although the reported sample injection volume was five times larger.
