The phrase "ascertain at this" is not correct and does not convey a clear meaning in written English.
It seems to be an incomplete thought and lacks context for proper usage.
Example: "I need to ascertain at this point whether we have enough resources to proceed."
Alternatives: "determine at this" or "verify at this".
"I don't know how anyone could ascertain at this point whether this is good or bad for the American citizenry," the Tennessee senator said on Fox News.
As our study sample was small, we cannot ascertain at this stage whether Morgellons filaments are associated with spirochetes belonging to other genera as well as Borrelia.
Those participants, who expressed interest in an interview and met the inclusion/exclusion criteria as far as was possible to ascertain at this stage, were invited to a brief structured diagnostic interview to verify they met these criteria.
What can be ascertain at this juncture is the fact that implant companies designing total knee arthroplasty components have made great strides in adopting the measurements of the Asian population into newer implant designs, specifically targeting to market the product to these populations.
Michael Mansfield Very difficult to ascertain at the moment the extent to which the media has truly changed its spots.
We don't have access to these areas, so we cannot ascertain at the moment the exact origin of these recruits.
How well the interpretative information along the guided trails in the forest or at the education center is described could not be ascertained at this time.
The origin of the minor component cannot be ascertained at this point, but this could be due to the excited-state charge-transfer complex between Rh6G and surrounding Pluronic molecules.
The extent to which this study demonstrates an association between adverse pregnancy outcomes and atrazine or, alternatively, herbicides in general, cannot be ascertained at this time.
Of course, caution should be exerted in interpreting results of this study as, like limitations in any other cross-sectional studies, a causal relationship between the associated factors and the anxiety symptoms could not be ascertained at this stage.
Given that novel models do not have comparable models on the same decision problem, the standard validation techniques on the face, convergent, and predictive attributes of this model could not be ascertained at this stage of our study.
