One possible explanation for such observations is over-dosing with transfections, resulting in deregulation of gene expression due to a massive influx of microRNA molecules [62].
Hence, it is possible that some observations were over- or underinterpreted because of relatively small number of cancer cases.
For all flies showing an induced behavior, after the 2-min observation was over, the temperature was immediately decreased to 21° and their behavior was observed for an additional 2 min. This functioned as a negative control, because the TrpA1 channel should be inactive at 21° (Hamada et al. 2008; Pulver et al. 2009).
Radiological investigation of the affected limb was taken, if indicated after 30-minute period of observation was over.
Total observation was over 120 days.
Post-hoc power according to Hoening and Heisey of this observation was over 80% [ 23].
In the ITS design, a series of observations is collected over time, both before and after a treatment is implemented.
The parsimony principle states that the simplest explanation that explains the greatest number of observations is preferred over more complex explanations.
However, when observations are averaged over several observers and several occasions over a long period of time, these sources of error is levelled out.
Available chemical observations are taken over a 20 years period and are associated with different depths and cover planar investigation scales of the order of hundreds of kilometers.
The observations were conducted over 158 nights, including cloudy nights, with the exception of nights when weather conditions were extremely severe, such as heavy snow or blizzards.
