The phrase "a direct confirmation of" is correct and usable in written English.
It can be used when you want to indicate that something serves as clear evidence or affirmation of a particular fact or statement.
Example: "The results of the experiment provided a direct confirmation of the hypothesis we proposed."
Alternatives: "an explicit affirmation of" or "a clear validation of".
Our finding is a direct confirmation of their argument.
And we've also reached out to Amazon for a direct confirmation of the deal.
This became a direct confirmation of Morrison's (1956) idea of cosmic ray modulation.
HAADF images and their BF counterparts provided a direct confirmation of the nature of the nanomaterial in the astrocytes.
The significance of all studies looking for a direct confirmation of P. acnes in sarcoid biopsies were limited to the fact that it is a commensal of the lung and also present in healthy individuals.
More generally, our results provide a direct confirmation of the presence of gBGC, and lend strong support to the hypothesis that it could play a major role in shaping base composition over evolutionary timescales (Duret and Galtier, 2009).
A pH-dependent destabilization of the HSPB5-ACD dimer interface was inferred from native MS studies performed on oligomers as a function of pH; our results offer a direct confirmation and quantification of this hypothesis (Baldwin et al., 2011b).
Lastly, we report the cellular uptake of these thermoresponsive magnetic hydrogels through STEM (scanning transmission electron microscope) observations; a first direct confirmation of such cellular transfection.
A direct confirmation is the increase in the magnitude of Urbach energy with the reduction in the band gap of doped TiO2.
Besides providing a measure of direct confirmation of gene structure for those genes "hit" by an EST, the additional sequences of confirmed introns, and in some cases polyA-addition sites, provide better training data for gene finding algorithms to locate genes with low or specialized expression patterns that are not found as abundantly in the cDNA libraries used.
In addition, among the prolific number of reports in the current literature on GM plants expressing AMPs only a few gave direct confirmation of AMP production [ 25, 40, 41, 43].
