In October 2008, a comment by STJ member James R. Gourley describing what he considers fundamental errors in a Bažant and Verdure paper was included in an issue of the "Journal of Engineering Mechanics". In April 2009, Danish chemist and STJ member Niels H. Harrit, of the University of Copenhagen, and eight other authors, including some STJ members, published a paper in "The Open Chemical Physics Journal", entitled "Active Thermitic Material Discovered in Dust from the 9/11 World Trade Center Catastrophe". The paper, which caused the editor and only peer-reviewer, Professor Pileni, to resign, claiming it was published without her knowledge, concludes that chips consisting of unreacted and partially reacted nano-thermite ("super-thermite") appear to be present in samples of the dust.