"be constant through" is a grammatically correct phrase and can be used in written English.
It means to remain consistent or persistent throughout a certain period of time or situation. Here is an example: "His love for her was the one thing that remained constant through all the ups and downs of their relationship."
In these theories, the transverse shear strain distribution is assumed to be constant through the thickness, and therefore, shear correction factor is required to account for the strain energy due to shear deformation.
This uniformitarian approach should provide accurate paleoclimate reconstructions under the core assumption that leaf-trait variation principally results from adaptive environmental convergence, and because variation is thus largely independent of phylogeny it should be constant through geologic time.
In particular, precise, quantitative paleotemperature estimates from taxon-free approaches operate under a still-untested core assumption that leaf-trait variation principally results from adaptive environmental convergence, and because it is thus largely independent of phylogeny it should be constant through geologic time.
The small, but non-zero, slope of the phylogenetic regression suggests that temperature is at most only weakly related to the evolutionary gain and loss of teeth, and thus the proportion of toothed species in a flora at a given temperature would not be expected to be constant through time.
Hence, if the strength and direction (positive or negative) of natural selection are constant, then the estimate of d N /d S should be constant through time.
Using this metric, we assumed breast milk concentration for each chemical to be constant through the lactation period, and breast milk consumption to be decreased by half during the period when breast milk was supplemented with formula, other liquids, or solids.
