The phrase "a direct validation of" is correct and usable in written English.
It can be used when discussing evidence or confirmation that supports a particular claim or theory.
Example: "The results of the experiment serve as a direct validation of the hypothesis proposed by the researchers."
Alternatives: "a clear confirmation of" or "an explicit endorsement of".
Still, it "was a direct validation of Ralph's concept," says Kalinski, and vaccines designed more recently, he believes, are working better.
In this study, we observed that MMP-2 and MMP-9 secretion was increased with estrogen treatment of ER+ thyroid cancer cells, which was suppressed by treatment with DIM, providing not only a correlative link but a direct validation of the anti-estrogenic activity of DIM that alters thyroid cancer cell phenotype.
The EST alignments were filtered based on requirements for minimum alignment length and sequence identity in order to differentiate cases in which the amino acid sequences were supported by a strong alignment from the cases in which the alignment indicated a paralog rather than a direct validation of the sequence by genomic data.
Although not a direct validation of our modeling approach, the results suggest that the model may indeed represent glucose/lactate physiology during the FSIGT.
A direct validation of calculated versus directly measured values of free testosterone in premenopausal women was published by Vermeulen et al. (1999).
Moreover, the calculation of the gross margin in the production model allows a direct validation of the model with benchmarking data and therefore provides a solid foundation for disease impact studies.
A new rocket observation of the solar XUV irradiance with 0.1 nm resolution above 6 nm was obtained on 14 April 2008, and these new results provide a first direct validation of the spectral models used in the XPS data processing.
Further, for a more direct validation of accuracy, we also collated the 3 U133 datasets into one combined dataset after adjusting for platform effect using empirical Bayes method [36].
Due to platform differences, a more direct validation of the predictor accuracy was only possible among the 3 U 133 datasets, after allowing for gene content mismatch compared with the NCI cDNA original predictor.
A more direct validation of the SCOTS gene set was performed by quantitative RT-PCR using a subset of genes.
As a more direct validation of germ line roles for Cbr-GLD-1-associated mRNAs, we used RNAi to knock down expression of over a hundred of them.
