"expression is defined as" is correct and usable in written English.
It is used to introduce a definition or description of something. For example, "Expression is defined as the conveying of emotions, ideas, and feelings through words or art."
The strength of connection between a pair of tissues with regard to gene expression is defined as, where i and j correspond to probesets in tissue 1 and tissue 2, and N 1 and N 2 are the number of probesets in tissue 1 and tissue 2, respectively.
Briefly, stochastic gene expression is defined as the ratio between the observed variance (σ2) and the expected variance given the mean expression level of a given gene over all single cells (Barroso et al. 2018).
The driving force in this expression is defined as the difference between the prevailing and the equilibrium unfrozen water contents in the soil.
This expression is defined as the generalized eigenvalue problem.
The forward prediction error f p k k ( n ) in this expression is defined as.
Thus, the overall complexity of the ET-FSD is dominated by p as ζ p =O(m p ), where ζ p, for the convenience of expression, is defined as the overall complexity of the ET-FSD when the FE search stage has p levels.
If less than 10%% of the neoplastic cells expressed HIN-1 the expression was defined as being weak, and if more than 10%% of the neoplastic cells expressed HIN-1 the expression was defined as being strong.
For each expressed probe, its expressions were log2ed, and the gene expression was defined as the average expression of all the expressed probes that attached to this gene.
MiR-19 repression of the 19RE reporter expression was defined as the luciferase activity expressed from the REm reporter divided by that expressed from the 19RE reporter.
