The phrase "ascertaining of our" is not correct in standard written English.
It is awkward and does not convey a clear meaning without additional context.
Example: "The ascertaining of our needs is essential for project success."
Alternatives: "determining our" or "establishing our".
In order to ascertain which of our findings were most important, stepwise linear regression analysis was performed looking at hyperactive-impulsive and Conduct Disorder symptoms.
It is my mission in life to ascertain the cause of our social evils and of our social difficulties.
We call upon you to order an immediate investigation of the medical files of the political prisoners named in this letter to ascertain the veracity of our charges.
Uncharacteristically, she didn't seem to suspect or blame me, and neither of us — my mother nor I — ever managed to ascertain the identity of our informant.
"We have talked with officials of the Libyan government in Tripoli, and they tell us they are attempting to ascertain the whereabouts of our journalists," said the paper's executive editor, Bill Keller.
"We have talked with officials of the Libyan government in Tripoli, and they tell us they are attempting to ascertain the whereabouts of our journalists," said Bill Keller, executive editor of The Times.
In this paper, we ascertain the effectiveness of our experimental setup in detecting and quantifying the turbulent effects experienced by a He-Ne laser beam as it passes through a wind tunnel.
To ascertain the robustness of our results with respect to the specific trade-off functions, we also analyzed the model with a different trade-off, which gave rise to highly similar results and supported the generality of our conclusions (Appendix B).
However, in order to ascertain the reliability of our setup, the droplet growth rate was studied.
The NHAMCS is not designed to collect information about chronic conditions, and thus we were unable to ascertain what proportion of our cases were "breakthrough seizures" occurring in patients who already had a diagnosis of epilepsy, versus acute symptomatic seizures, versus first-time unprovoked seizures.
