THE ASSOCIATED PRESS

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WEST LAFAYETTE, Ind. - Purdue University on Wednesday reprimanded a scientist who has been accused of falsifying claims he produced nuclear fusion in tabletop experiments.

Rusi Taleyarkhan made headlines in 2002 when he published a paper in the journal Science claiming that he had produced nuclear fusion, long sought as an energy source by scientists, by making tiny bubbles collapse in a liquid.

A university panel did not investigate the Science paper, which was published when Taleyarkhan was a researcher at Oak Ridge National Laboratory in Tennessee, but said he misled the scientific community by claiming his "bubble fusion" findings had been independently replicated.

Taleyarkhan also falsified the research record by arranging for one of his students to appear as co-author of a paper to create the appearance that the student had witnessed the experiment, the panel said.

Taleyarkhan was denied an appeal and stripped of his named professorship by a university committee. He may remain a member of the university's faculty but will not be allowed to serve as a major professor for graduate students for at least three years.

A telephone message seeking comment was left by The Associated Press at Taleyarkhan's office. Taleyarkhan's lawyer told the Journal & Courier of Lafayette he would challenge the sanctions.

Taleyarkhan has contended that other scientists have replicated his work and has accused his critics of conflict of interest, jealousy and other motives.