The phrase "a topic upon" is correct and usable in written English.
It can be used when introducing a subject or theme that will be discussed or elaborated on in a text.
Example: "The professor presented a topic upon which the entire class could engage in meaningful discussion."
Alternatives: "a subject on" or "a theme regarding".
Childhood is a topic upon which Mr. Atunes can be deeply observant and charming.
Trump's domestic agenda is so riddled with contradictions that it's hard to find a topic upon which he hasn't totally flip-flopped.
4. WRAP-UP/HOMEWORK: In their groups, students research an example of a topic upon which their agency has disagreed with another agency, or students come up with a hypothetical situation in which their agency might disagree with another agency.
We suggest the predictive power of TTF-based models of adoption can be enhanced by integrating network externalities with the TTF framework, a topic upon which we will expand in the next section as our hypotheses are developed.
Avoid a topic upon which 2000 books and journal articles may have already been written in the past ten years and also in which your instructor is expert or knows well.
Gregoriev also treats Wright's understanding of objectivity in knowledge, a topic touched upon in Section 5 below.
It also surely signals the absence of a long-term, carefully planned, progressive accumulation of knowledge on a topic, built upon specialised skills in the area.
"Good fusion/bad fusion is too subjective a topic to pronounce upon, except to say it can be judged as any other music," he said.
Meltzer's novel is, in part, about the lives of this country's former presidents, a topic he hit upon after receiving a fan letter from the first President Bush.
While labor economists have made substantial advances at estimating causal relationships, we believe that genetic information may hold more hope at identifying causal mechanisms, a topic we elaborate upon in our discussion of gene environment interactions.
All interviews lasted 30-45mins and followed a topic guide based upon the study aims (see Additional file 1).
