This, of course, does not exclude variation in rates of coding over the study period affecting our estimates.
Although we cannot exclude variation in σ, a lower porpoise density in southern waters is supported by field estimates based on aerial and ship surveys conducted in the North Sea and adjacent waters [ 45, 46].
Discrimination of weak and strong positive staining was based on the intensity observed in different components within the same area of the tissue section to exclude variation in staining intensity caused by differences during the fixation procedure.
While data collectors were trained to use standardised materials, it is impossible to exclude variation in error detection due to differing workloads, 48 vigilance and/or individual clinical experience of collectors.
This measure excluded variation in dietary compounds (Additional file 8: Table S1), because all avian species lose plumage carotenoids in absence of dietary carotenoids, but instead reflects a particular patterns of wiring of avian metabolic networks – their unusual modularity and shortness of pathways for the number of compounds that they contain (Fig. 4).
These results show that the geomagnetic activity (described by Ap) is strongly linked to the solar cycle phase (solar activity is described by F10.7) and in this study, we were unable to exclude variations in foF2 related to geomagnetic activity.
Silhouette quality and information correctness: Our dataset has relatively high-quality silhouette images because we manually checked each silhouette not only to ensure image quality, but also to exclude variations in walking conditions to enable a pure investigation of gait-based age estimation.
To exclude variations in the expression level of Ostm1 to be responsible for this inhomogeneous distribution, 24 single clones of the stably expressing cell line were analyzed.
One positive bat serum specimen was used as a reference to exclude variations in experimental procedures and signal intensities.
To exclude variations in signal intensities due to different positions within the cell cycle, only G1 cells were analyzed.
