However, while we have combined data from studies designed for different purposes, and with differing response rates, they were conducted within similar time frames, drew samples from electoral rolls using a similar methodology and had comparable socio-demographic profiles.
During the last two decades a couple of models were developed for constructed wetlands with differing purposes.
It is also fair to say, as Parker does (forthcoming), that the conditions outlined above pay insufficient attention to the various and differing purposes for which simulations are used (as discussed in 2.4).
This database is being continuously expanded and now there are several different types of hormetic databases which serve differing purposes.
For example, while sharing common problems (and perhaps some common solutions), nonhuman preclinical studies and toxicology tests require some different methods and policies because of their differing purposes: Preclinical studies investigate efficacy (benefits), and toxicology investigates safety (harms) (Krauth et al. 2013).
Similarly, tunnels for mining and for civil-engineering projects share the basic procedures but differ greatly in the design approach toward permanence, owing to their differing purposes.
Later investigations revealed that the practice of constructing earth mounds was widespread and served greatly differing purposes.
When considering diverse bacteria, it is clear that SOS is not a uniform pathway with one purpose, but rather a platform that has evolved for differing functions in different bacteria.
