In comparison, RTT compartment models are more rigorous and formal integro-differential equations and graphics initiated by the RTT universal system equation, forcing an ordered identification of simplifying assumptions, ending with clearly identified depictions of the transfer and transport of conservative substances in physical space and time.
This includes identification of the assumptions about the nature of the "background processes" and background disease, about the nature of human heterogeneity and its relation to healthy and diseased states, and about the effect of small chemical doses on the biological system.
Exploration helps with the identification of the issues, assumptions and beliefs of stakeholders that affect the area of mobile learning undertaken.
Following the identification of the underlying assumptions, we looked for empirical evidence in community studies to support or refute their validity.
Additionally, identification of requires the assumptions of monotonicity (ie, that no patients who would have taken up ART if ineligible would refuse ART if eligible and vice versa) and of excludability (ie, that may affect only through ).
Likewise, sensitivity analysis was undertaken to detect if the identification of conditional independence assumption was satisfactory or affected by the dummy confounder or the estimated Average Treatment Effect on the Treated (ATT) is robust to specific failure of the CIA.
This implies that we have to invoke a couple of identification assumptions that must hold a priori to ensure that the forecasts are valid.
We do not find evidence of an 'Ashenfelter's Dip' in our data in that there is no evidence of a transitory drop in the wages for the treatment group that would otherwise have put into question the validity of the underlying identification assumption of difference-in-difference methods.
For identification of novel putative-effectors, assumptions were made about biologically relevant expression clusters, secreted proteins were predicted from these as above and compared with online databases using BLAST.
Results of the identification experiments are presented, including implications of assumptions of decoupling and linearity.
