Archive for the ‘germany retractions’ Category
Attention Joachim Boldt: The 1990s are calling, and they want their papers back.
The Annals of Thoracic Surgery has retracted two papers from the early 1990s on which Boldt was the first author – bringing the retraction tally for the disgraced German anesthesiologist to 96, by our count. Both articles were found to contain manipulated data.
The first paper, from 1990, was titled “Acute Preoperative Plasmapheresis and Established Blood Conservation Techniques,” and was written when Boldt was on the faculty at Justus-Liebig University, in Giessen.
According to the notice:
According to the Managing Director of the society, Stem Cell Network North Rhine Westphalia (NRW), the event was not open to the public, and the authors had not contacted either the society or the scientists they cited before publishing the report.
Here’s the retraction notice for “A Report on the Internal Retreat Meeting of the Stem Cell Network North Rhine Westphalia,” published online in Molecular Biotechnology on October 31 and retracted shortly after on December 14: Read the rest of this entry »
In 2011, authors of a Nature letter caught some flak for issuing a lengthy correction to a neuroscience paper that had raised eyebrows within days of publication — including some suggestions it should be retracted.
The correction notice, published months after the original letter, cited errors in image choice and labeling, but asserted the conclusions remained valid.
Now, those conclusions appear up for debate. In a recent Nature Brief Communications Arising (BCA) article, a team that raised concerns about the paper five years ago says they are unable to reproduce the results. But the authors of the original paper aren’t convinced: They argue that the BCA fails to cite important evidence, has a “complete absence or low quality of analysis,” and the scientists disregard some of their data.
The latest retraction for Tina Wenz in the Journal of Applied Physiology mentions the probe at the University of Cologne in Germany, which recommended retracting six of her papers. One had already been retracted by the time the report was released; last month, we reported that two others had been pulled. Now, we’ve come across a fourth.
A pathology journal is retracting two papers after an investigation at the last author’s institution in Germany found evidence of scientific misconduct.
The notice for both papers cites an investigation involving Regine Schneider-Stock, who studies cancer biology at the Friedrich Alexander-University Erlangen-Nuremberg (FAU). Meanwhile, another 2005 paper that lists Schneider-Stock as the first author was retracted in October, noting evidence of image manipulation.
The most recent retractions, from the American Journal of Pathology, note that FAU declined to provide the journal with details of its investigation beyond a prepared statement:
The probe into Tina Wenz by the University of Cologne in Germany, her former employer, recommended that six of her papers — which have induced some chatter on PubPeer — should be retracted. One of these papers was pulled by Cell Metabolism last year. Now, Cell Metabolism has pulled another of Wenz’s papers, and she has also lost another study published in the Proceedings of the National Academy of Sciences (PNAS), which was previously corrected.
The German Research Foundation (DFG) has announced today that it is withdrawing a professorship it awarded leading diabetes researcher Kathrin Maedler in 2014.
In recent years, Maedler — based at the University of Bremen in Germany — has faced questions about her work, including allegations of duplication and image manipulation. So far, she has issued one retraction, two expressions of concern, and multiple corrections. After an investigation, the University of Bremen concluded last month that Maedler’s work contained several duplications that were the result of negligence, noting there is not enough evidence to support charges of scientific misconduct.
But this hasn’t stopped the DFG from revoking the prestigious Heisenberg professorship it awarded Maedler in 2014. A Google-translated version of statement released by the DFG (in German) today concludes that Maedler did, in fact, commit misconduct, as she
When it comes to detecting image manipulation, the more tools you have at your disposal, the better. In a recent issue of Science and Engineering Ethics, Lars Koppers at TU Dortmund University in Germany and his colleagues present a new way to scan images. Specifically, they created an open-source software that compares pixels within or between images, looking for similarities, which can signify portions of an image has been duplicated or deleted. Koppers spoke with us about the program described in “Towards a Systematic Screening Tool for Quality Assurance and Semiautomatic Fraud Detection for Images in the Life Sciences,” and how it can be used by others to sleuth out fraud.
Retraction Watch: Can you briefly describe how your screening system works?
A Springer spokesperson told us all three papers were pulled as a result of “human error.” In two instances, the notices say the editors-in-chief never meant to accept the papers, since the recommendation was to reject.
Several duplications in the work of a prominent diabetes researcher were the result of negligence, but there is not enough evidence to support charges of misconduct, according to an investigation at her university in Germany.
Recently, we’ve reported on several notices for papers co-authored by Kathrin Maedler, a researcher at the University of Bremen. So far, Maedler has one retraction, multiple corrections, and two expressions of concern to her name, after several of her papers were questioned on PubPeer. Previously, the University of Zurich in Switzerland — where Maedler completed her PhD in 2002 — determined there was a lack of evidence to support allegations of misconduct in papers that were part of her doctoral thesis.