Misconduct allegations are leading scientists to question the work of Ranga Dias, including his claimed discovery of a room-temperature superconductor.
Marc Tessier-Lavigne was cleared of accusations of scientific fraud and misconduct. But the review said his work had “multiple problems” and “fell below customary standards of scientific rigor.”
The former roommate, who pleaded guilty in 2017 and was deported, sent an affidavit to federal authorities accusing Mr. Santos of running a card-skimming operation.