Thus, our results are in line with an increasing number of studies that suggest that the current dominance of allopatric and parapatric speciation concepts in evolutionary theory may be in part an artefact of studying speciation patterns at levels where the processes have long been completed.
The ranges provided are an artefact of the study area, the number of land cover categories and the resolution, as when summed across a large number of pixels, pixel error is mostly negated as underestimates in one part of the landscape are counterbalanced by overestimates in other parts.
Is the rapid rise a real phenomenon or is it an artefact of the study's methods?
Unfortunately, it is not clear whether the geographical variation in responses is a reflection of fundamental differences in GORD biology or an artefact of the study.
However, these requirements were an artefact of the study and would not apply should the intervention be incorporated into routine clinical care.
However, we cannot completely exclude the possibility that the prevalence of darker objects in the turtles is partially an artefact of our study design, as the debris in the turtles' gastrointestinal system is exposed to digestive fluids and other waste, which may result in a reduction of luminance.
We have no indications that this was an artefact of our study design, since the mean age of the control group was comparable with the mean age of primiparae in the Dutch population according to published national registry data (29.1 years from 2000 until 2005).
In some cases this could be an artefact of the study design: where people are asked retrospectively to indicate a rationale for their actions they can endorse motivations which construct these in a socially desirable light whilst free of other demands.
During the 19th Century, when 'Egyptomania' electrified Europe, mummies started to be considered less as grisly curiosities and more as important artefacts worthy of study.
