Only a true background of a scene can be the best choice to be the reference frame for uncovered background.
Accordingly, we unveil some surprising facts, which are in contrast to what is commonly considered in literature, e.g., the reference choice is actually not important for the differencing process.
The interpretation of the parameters ω st is the gain (or loss) in utility from comparing the alternative s to the alternative t, where the latter choice is the reference, when one has the characteristics X.
Early to mid-20th -Century abstract geometrics and expressionism seem to be the art reference of choice.
Silhouette 3 seemed to be the best choice for a common reference category at all ages, given the corresponding number of subjects at each age.
For such studies, the highly stable but lowly expressed reference gene(s) might be the best choice for normalization of quantitative gene expression data.
Other factors that influence connectivity results are the choice of the reference electrode and the choice of the length of the selected time series, both of which are not standardized in the field of functional connectivity research.
One of the most critical issues in RT-qPCR is the choice of reference genes used for gene expression analysis, since the expression of a number of such reference genes varies considerably under each experimental condition in different lab settings [ 45- 48].
The most common source of error in the RT qPCR results is the inappropriate choice of reference gene(s) for normalization, which may lead to erroneous results.
However, in the non-transcribed regions, neither strand in particular is the obvious choice for the reference sequence.
The critical aspect for robust and reliable lesion quantification is the choice of the reference region.
