The phrase "asserts upon" is not correct and is not commonly used in written English.
It is typically intended to convey the act of stating or affirming something, but the preposition "upon" is not appropriate in this context.
Example: "The author asserts that the theory is valid."
Alternatives: "asserts that" or "claims regarding".
The structure will be built, whatever the cost, he asserted, upon laying the first stone in April 2011.
Evidence from larger and well-designed RCTs is still required to assert upon these findings.
The efficiency of the method was asserted upon sensibility and specificity obtained by comparing the classification results with those from histological analysis.
The classification efficiency was asserted upon Sensibility (Se) and Specificity (Sp) calculated by the ratio of well classified to total tissue sites.Finally, we obtained the following results for each classifier : Se = 85.7% and Sp = 94.4% for LDA, Se = 90.5% and Sp = 94.4% for k-NN.
In traditional approaches to quantum measurement theory a central role is played by the projection postulate, which asserts that upon measurement of a physical system its state will be projected ("collapses") onto a state corresponding to the value found in the measurement.
The author asserts that "naught upon Earth is wrought in thy despite, O God" and that in Zeus all things are harmonized.
The same review asserts that, based upon at least one trial, antipsychotic medications effectively resolve the symptoms of acute amphetamine psychosis.
And yet … his encounter with his mother, where he asserted himself upon a mute party, suggested a non-chaotic alternative for our hero.
The Los Angeles Times asserted that, upon leaving the stage, Hendrix "graduated from rumor to legend".
"There is way deeper shit than just a fight on Saturday night," asserted Conor upon arrival, "I always say, you should aim for peace.
