The phrase "assert among" is not commonly used in written English and may not convey a clear meaning.
It could be used in contexts where you want to express that someone is making a claim or declaration within a group or among a set of people.
Example: "The researcher sought to assert among her peers that her findings were significant and warranted further investigation."
Alternatives: "claim within" or "declare among".
Comcast has been pushing back, asserting, among other things, that such a move by the F.C.C. would infringe on its First Amendment rights.
The Kirbys fired back in the Central District of California, asserting, among other things, the right to reclaim copyrights to many of those characters.
The book asserted, among other things, that she had hired private detectives to track Maureen Orth, who was writing a piece about her for Vanity Fair.
Iran's president, Mahmoud Ahmadinejad, had just finished speaking in the campus center, where he asserted, among other things, that Iran had no homosexuals.
Every subculture has its particular ethos, and it is generally asserted among dog owners that a female in heat should be isolated from other dogs.
Microsoft has asserted, among other things, that the integration of its operating system and applications software divisions into one company produces efficiencies that bring innovation.
Ms. Drew's defense asserts among other things, as it did at trial, that she never read MySpace's terms of service in detail.
The lawsuit asserts, among other things, that the university refused to offer him accommodations for his disability and that it imposed conditions on him that were "more onerous and intrusive" than those placed on students with physical illnesses.
Sergei Antonov, Mr. Izmestiev's defense lawyer, said he planned to appeal the verdict to the European Court of Human Rights, asserting, among other arguments, that the jury in the earlier trial had been illegally dismissed.
The book asserts, among other things, that Cameron, when he is not playing Angry Birds, enjoys karaoke, snooker, and hitting with "The Clegger," a ball machine that he has nicknamed after the Deputy Prime Minister, Nick Clegg.
