Dutch economist Nijkamp embroiled in plagiarism and duplication scandal

The Dutch papers are reporting that Peter Nijkamp, one of the leading economists in The Netherlands, has been embroiled in what looks like a self-plagiarism scandal following the cancellation of a thesis defense by one of his graduate students because of plagiarism. We say “what looks like” because it’s tough to figure out what’s alleged … Continue reading Dutch economist Nijkamp embroiled in plagiarism and duplication scandal

Five plagiarism retractions appear for Taiwan engineer

Two journals have retracted five papers by a researcher in Taiwan who evidently took the notion of teamwork a little too liberally. The first notice is one we missed when it came out in 2012 in the British Journal of Educational Technology. The article, “Learning in troubleshooting of automotive braking system: a project-based teamwork approach,” … Continue reading Five plagiarism retractions appear for Taiwan engineer

Chemist loses two papers, one each for plagiarism and duplication

A researcher at Shanxi Normal University in China has notched two retractions, once for plagiarism and one for duplication. Here’s the most recent notice, which appeared in Chemical Physics Letters on September 25:

Duplication earns engineering paper a corrigendum rather than a retraction

Two authors in Turkey have had their paper subjected to a correction after it became clear that material was lifted heavily from two previous papers by one of the researchers. The corrigendum reads:

“Why Has the Number of Scientific Retractions Increased?” New study tries to answer

The title of this post is the title of a new study in PLOS ONE by three researchers whose names Retraction Watch readers may find familiar: Grant Steen, Arturo Casadevall, and Ferric Fang. Together and separately, they’ve examined retraction trends in a number of papers we’ve covered. Their new paper tries to answer a question … Continue reading “Why Has the Number of Scientific Retractions Increased?” New study tries to answer

A masterbatch: More polymer retractions, gerontology journal lifts paywall, Microbiology notices appear

Our mothers told us that if we used the masterbatch process, we’d go blind. And what better way to gather some updates to recent posts than to include one that involves said masterbatch process? First, a retraction John Spevacek noticed when he tried clicking on the link in a Journal of Applied Polymer Science retraction we’d … Continue reading A masterbatch: More polymer retractions, gerontology journal lifts paywall, Microbiology notices appear

Update: Microbiologists face two more retractions for Northern blot problems

We have an update on a case we reported last week involving four papers in two different journals. The Journal of Bacteriology retracted two papers by Carlos Barreiro and colleagues, in notices that referred to the fact that …identical bands for the 16S rRNA probe controls in the Northern blots were reported to correspond to … Continue reading Update: Microbiologists face two more retractions for Northern blot problems

Pfizer database errors cause two voluminous retractions for JACC statin-biomarker papers

Coding errors in a database maintained by Pfizer have led authors to retract two heart biomarker papers in the Journal of the American College of Cardiology. The two notices, for “Prediction of cardiovascular events in statin-treated patients by lipid and non-lipid biomarkers” and “Plasma PCSK9 levels and clinical outcomes in the TNT (Treating to New … Continue reading Pfizer database errors cause two voluminous retractions for JACC statin-biomarker papers

How much self-plagiarism, aka duplication, is too much?

Duplication is a frequent reason for the retractions we cover. Such duplication retractions are so common that we don’t get to most of them. While many have argued that duplication pollutes the literature, and can bias meta-analyses when the same study ends up being counted more than once, others say the need to come up … Continue reading How much self-plagiarism, aka duplication, is too much?

After three retractions, five expressions of concern, cardiologist Matsubara resigns post

Hiroaki Matsubara, a leading Japanese cardiology researcher who has had three papers retracted and another five subject to expressions of concern, has resigned from Kyoto Prefectural University, according to local media. Mainichi Shimbun reports — according to our roughest of (Google) translations — that Kyoto Prefectural University accepted Matsubara’s resignation following an investigation. That investigation … Continue reading After three retractions, five expressions of concern, cardiologist Matsubara resigns post