It appears that rather than solely their concentration at the feto-maternal interface, the ratio and interaction of VEGF family members, angiopoietins and growth factors orchestrate the development of the placental vasculature and all in all, this is influenced by oxygen (Charnock-Jones and Burton, 2000).
Using a cut-off for each measure allowed comparisons of odds ratios and interactions with treatment on a consistent binary scale across measures.
We estimated the prevalence of comorbidity and calculated mortality rate ratios and interaction risks between melanoma and comorbidity.
Hazard ratios and interaction terms were calculated using multivariate Cox proportional hazard models, stratified for nodal status.
The effect of Fe and P loadings and Si/Al ratio and their interactions on ethylene and propylene production and catalytic stability of HZSM-5 were studied.
Furthermore, a central composite design model was built to show the influence of temperature, pH, reaction time and epicatechin to polymer mass ratio and their interactions on the yield of oligomers.
The influence of temperature, deposition time, feedstock concentration, fluidisation ratio, and their interactions was investigated using a statistical design methodology to give a static global optimisation of the multi-dimensional nanotube formation space.
A series of experiments has been designed and conducted to study the effect of three operating factors, namely, coal feedrate, coal particle size, and steam/O2 ratio, and their interactions on the quality of syngas produced from fluidized bed gasification of lignite coal.
Apart from this, the bare particles are very sensitive to agglomeration to produce a large cluster due to their large surface to volume ratio and dipole dipole interactions.
Figure 5A shows contour plots regarding the effects of water content, methanol to oil molar ratio and their interactions on FAME yield at a constant enzyme dosage of 12.5 wt.%.
