The phrase "ascertained by changes" is correct and usable in written English.
It can be used when discussing how something is determined or established through variations or modifications.
Example: "The effectiveness of the new policy was ascertained by changes in employee productivity over the following months."
Alternatives: "determined through changes" or "established by modifications."
State-dependent changes may be ascertained by examining changes in F0 variation from one condition to another.
The p-values from the three paired-sites tests are all congruent in the rank order that the six suboptimal constrained topologies are placed in, which is also congruent with their rank order ascertained by the number of extra character changes implied by these topologies relative to the optimal unconstrained MPTs (Table 1).
A new measure based on PRIME theory, called the risk acceptance ladder (RAL) 56 (Cattaruzza and West, 2014, in preparation) proposes that the blocks to effective behaviour change can be ascertained by determining the individual level of risk acceptance and at what stage motivation has been stalled.
Such structural changes were not anticipated in advance.14 Of course, once a structural change has occurred and been ascertained by policymakers, they will know what rules would likely have performed well in the face of that change.
Change over time was ascertained by shifts in clusters from baseline to each postbaseline visit (end of year 1, 2, and 3).
Preferences and any changes in preference will be ascertained by hospice nurses or doctors undertaking community, inpatient or clinic based assessments.
The correct placement of the pulmonary artery catheter was ascertained by visualization of concordant waveforms and calculation of the respiratory changes in PAOP (ΔPAOP -to-respiratory changes in pulmonary artery pressure (ΔPAOP -to-respiratory
The eGFP-CaM stock solution could be stored for up to several weeks at 4°C without a detectable change in its translational mobility, as ascertained by FCS.
(Compd. 1), as ascertained by elemental analysis.
Those responsible for the firing could not be ascertained by the United Nations military observers.
