The interaction between indicator variables and survey year was tested but no significant trend interaction effects were detected.
If the solvent is a stronger Lewis acid than the cation, the solvent interacts solely with the indicator, or the solvent is a Lewis base strong enough to solvate the cations making an interaction between indicator and cation impossible.
We used a series of known and hypothesized kinetics of biological system components, including conventional logistics function, law of mass action, and Michaelis-Menten kinetics to build SDMM from subsystems and mimic interactions between indicators.
Unfortunately, as patient level data relating to QOF indicators are not available for this study, it is not possible to determine whether combinations of indicators within individuals are key or if there are interactions between indicators and other characteristics of individuals, for example, ethnicity or gender.
Analysis entails comparison of changes in proportions, means and medians as well as estimation of multivariate linear regression models with interaction terms between indicators for study site (voucher or non-voucher) and period of study (2010 2011 or 2012).
Furthermore, the interaction between these indicators and country context needs to be assessed on the basis of more solid outcome indicators.
As explorative analyses, all of the above analyses will be repeated with the indicator of comorbid personality disorder as well as the interaction between this indicator and the intervention indicator included.
Anova results revealed a significant interaction between enclosure indicators and setting type.
For this purpose, I modify Eq. (5) by including indicators for tenure categories and interactions between these indicators and year-quarter indicators.
To do so, besides including an indicator variable for holding a PC among the set of controls, we add an interaction between this indicator and a step dummy variable taking the value 1 from 1999 to 2001.24 In line with the notation used earlier, we label this step dummy as F2.
