The twist of the Cornell research is that Dr. Lipson and Michael Schmidt, a graduate student, used the technique to look for combinations of the experimental variables that remained constant even as the variables changed over time.
None of the sublingual microcirculatory variables changed over time (Additional file 1).
Most of the other investigated variables changed over time as well (Table 2 and 3).
If the model is dynamic the course of variables changes over time; in contrast, in the static case time constancy is assumed.
To fully explore the relationship between background variables, disease variables and self-reported measures, we warrant future studies monitoring the changes in self-reported measures as disease variables changes over time.
The design of this pooled cross-section multinomial logit allows us to test whether the overall rate of exit changed between the two time periods and to examine whether the effects of independent variables changed over time and among the type of unskilled occupations.
In addition, in Newtonian mechanics, the system's state variable changes over time, and the law that governs the change of the system's state is normally described by an ordinary differential equation.
COX-1 expression displayed however variable changes over time in individual patients, with no identifiable trend.
The structural part of the model describes how the latent health variable changes over time.
