Dihexa mastery course
Unit 5 of 10
The research-integrity problem
A dihexa course that skips the integrity actions is not honest.
The retraction and the expression of concern
A dihexa course that skips the integrity actions is not honest. In September 2021 the journal published notices of concern on two foundational dihexa papers: the 2014 mechanism paper, which was then retracted in April 2025, and the 2013 paper that named dihexa, for which the sources this course holds record no retraction.
This unit explains what those notices mean, which papers are affected, and how the flagged findings quietly power the confident claims you meet in the wild. It is the heart of the honest case.