"have operated to" is correct and commonly used in written English.
It is generally used to describe the impact or effect of something on a situation or outcome. Here are some examples: - "The new policy changes have operated to improve employee morale." - "These changes in consumer behavior have operated to boost sales for the company." - "Recent technological advancements have operated to streamline production processes." - "The government's budget cuts have operated to hinder the progress of certain social programs."
It has been suggested that such sentiments have operated to prevent the spread in China of opinions supportive of political liberty.
Although it is not yet possible to know the quantitative composition of the primitive atmosphere, the geochemical processes that have operated to modify its composition during geological time can be evaluated.
The only matter in all these proceedings which could possibly have operated to the prejudice of the plaintiff was the fact that the stock had become worthless, it being argued that the jury might have been induced thereby to relieve the defendant from paying any more on account of the worthless stock after he had paid the $3,000 to the company and the one-half of the judgment to O'Reilly.
In contrast with positive feedback, negative feedback dynamics have operated to act against the amplification dynamics to stabilize the collective pattern.
Taken together, these results suggest that stabilizing selection on the transcriptional output may have operated to maintain a similar pattern of Endo16 expression in S. purpuratus and L. variegatus, despite dramatic divergence in promoter sequence and mechanisms of transcriptional regulation.
A general opinion has been that if ribose were used in the first RNA, an unknown selection process must have operated to segregate ribose from the other sugars that were formed.
More specifically, they contend that § 186 has operated to preclude newly registered voters, such as themselves, from participating in the primary election of the party of their choice.
A couple of days after Dr. Tomita had operated to remove the tumor, an MRI showed that there was still a piece left in Isabel's brain.
This result can be explained as a consequence of concerted evolution, which has operated to homogenise the different loci in a time-dependent manner.
