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Trump’s reelection has forced me to tear up my international law syllabus, just as I did every semester during the first Trump administration, when virtually every subfield and topic came under direct assault.

The public relations industry has a related subfield called “crisis communications”—the art of preparing for, and reacting to, adverse publicity.

Discola studies criminal victimology, a subfield of criminology focused on the victim experience.

Computer vision is a subfield of AI that deals with the ability of computers to interpret and analyze visual data from the world.

That practice has spawned an entire subfield of scientific inquiry known as dendrochronology.