The phrase "a determined insistence" is correct and usable in written English.
It can be used to describe a strong and unwavering demand or assertion made by someone.
Example: "Her speech was marked by a determined insistence that change was necessary for the future of the community."
Alternatives: "a resolute demand" or "an unwavering insistence".
Zoe's determined insistence that none of her girls were too thin has always grated.
His analytical intelligence and insistence on the idea as a determining agent in his choice of techniques, as well as image, made him more a forerunner of conceptual than of pop art.
Most commentators centred on Abbott's insistence that he determined his picks based on merit.
Publishers' willingness to experiment makes a change from the insistence that price be determined by the effort that goes into producing something, and no doubt they're enjoying the roaring sales.
Shortly afterwards, concerned that the Dutch might make the shoreline before he could bring them to battle despite his wry insistence that "I am determined to fight the ships on land if I cannot by sea", Duncan ordered his fleet to turn southwards and advance on the enemy and "bear up and sail large".
One is whether or not survey participants report infrequent TTH, which can have a marked effect on the prevalence estimate and is likely to be determined in part culturally and in part by the insistence (and purpose) of the interviewer [23, 24].
"There's at least a possibility that the insistence of viewing Manning as a hero could end up hardening the position of prosecutors determined to refute that view," Mr. Aftergood said.
DeWitt characterized the insistence of Snap Inc., saying "They came in and they were very determined.
An insistence on equality in Rawls is really a insistence on a presumption of equality.
With a modern insistence on painting from nature, the artist traveled far to find flora for his lush scenes.
