The journal Ecotoxicology has retracted a paper that described a way to analyze nitrates in groundwater after discovering the authors had lifted a substantial amount of material from three other papers.
Here is the retraction notice for “Isotopic analysis of N and O in NO3 – by selective bacterial reduction to N2O for groundwater pollution:” Continue reading Journal retracts groundwater pollution paper for plagiarism
There’s something strange about a 2008 paper on the role of nicotine receptors in promoting lung cancer: One of the western blot analyses looks like a version of an image from a commercial catalog.
A commenter on PubPeer pointed out the similarities between an image in “Role of α7-nicotinic acetylcholine receptor in human non-small cell lung cancer proliferation,” which was published in Cell Proliferation, and one used to promote an enzyme sold by Cell Signaling Technology.
Unfortunately, if the images are indeed the same, we can’t tell for certain who copied from whom. But a representative of the company told us it generates its own images, and this one was likely created before the paper was published. The last author — for whom we’ve found three other retractions — denied that the paper copied the image.
Here’s the panel from the paper, which was published in 2008: Continue reading Does this scientific image look familiar? It’s from a catalog
Authors have retracted a 2002 paper from PNAS because part of a figure “may have been fabricated,” and they no longer have the original data to prove otherwise.
The paper in question, “Deficient Smad7 expression: A putative molecular defect in scleroderma,” studied the signaling pathways that may underlie the autoimmune disease. It has been cited 198 times, according to Thomson Reuters Web of Science.
The authors, led by Pascal J Goldschmidt-Clermont, currently the Dean of the School of Medicine at the University of Miami, have issued a retraction note, which appeared online yesterday: Continue reading Authors pull 14-year-old paper from PNAS over concerns of fabrication
Since we reported Friday that multiple authors had asked to remove their names from a high-profile 2011 Lancet paper about a risky transplant surgery, a few readers have wondered: Should this be allowed?
To recap: The same day the journal announced it was tagging the controversial paper with an expression of concern, it issued a new erratum about the paper, removing three author names (one had already asked to be removed earlier). The highly cited paper has been under scrutiny ever since the last author, Paolo Macchiarini, has been facing allegations of misconduct, which most recently led to Macchiarini’s dismissal from the Karolinska Institutet. (Here’s our timeline of events to keep you abreast.)
It’s not surprising that a few of Macchiarini’s co-authors would want to distance themselves from this ever-expanding scandal, but should authors who originally signed onto a paper be able to change their minds? Let us know in our poll, below. Continue reading Poll: Should co-authors of a scientific paper be allowed to change their minds?
Alfredo Fusco, a researcher in Italy who has been under criminal investigation for scientific misconduct, has earned his ninth retraction.
Retraction number nine, by The Journal of Clinical Investigation, is for duplicating data from another publication — which has also faced questions on PubPeer about image manipulation, along with many other papers by Fusco.
The retraction note for “The RET/PTC-RAS-BRAF linear signaling cascade mediates the motile and mitogenic phenotype of thyroid cancer cells” explains that the journal is pulling the paper even though the authors claim that they can reproduce the data:
Continue reading Cancer researcher earns 9th retraction, for image duplication
Two retractions and three corrections have appeared for a group of Duke researchers that already have 10+ retractions under their belts.
The reasoning behind them echoes that which we’ve seen before in notices for Michael Foster and Erin Potts-Kant: Following an inquiry from the university, the journals were informed that some of the data or results weren’t reliable, and not all of the experiments could be repeated.
A colleague aware of the case said that researchers are still working to repeat experiments from papers by Potts-Kant and Foster. It is not known how many more papers might be corrected or retracted. Duke University is fully supporting the validation of these experiments, the source told us.
Foster has retired from Duke, a spokesperson for the university confirmed. Continue reading Five more notices for Duke pulmonary pair brings retraction tally into double digits
A journal has retracted a paper about 3D imaging after concluding the authors used equations from another researcher without attribution — and has conveniently included a detailed editorial explaining exactly what happened.
It’s rare for us to see a journal be so transparent in explaining what went wrong with one of its papers, so we’re thanking Stuart Granshaw, from Denbighshire in Wales, UK, the editor of The Photogrammetric Record, for “doing the right thing.”
Even the retraction note is reasonably forthcoming: Continue reading Now this is transparent: Retraction for plagiarism earns 4-page editor’s note
The Lancet has tagged an expression of concern onto a seminal 2011 paper by Paolo Macchiarini, the Italian surgeon whose work and conduct outside the operating room has earned months of heavy criticism that recently culminated in his dismissal from the Karolinska Institutet.
“Tracheobronchial transplantation with a stem-cell-seeded bioartificial nanocomposite: a proof-of-concept study,” which described the first case of a transplant using an artificial trachea seeded with the patient’s own stem cells, now bears an expression of concern from The Lancet editors, citing ongoing investigations. The journal has also removed three more authors from the paper, upon their request.
The expression of concern essentially presents the timeline of the controversy that led the journal to make this move:
Continue reading Lancet issues expression of concern for 2011 Macchiarini paper
Fred Walumbwa, a management researcher with eight seven retractions, has received three expressions of concern from two journals after he failed to provide raw data following an investigation into potential errors.
In the past, Walumbwa has said he only keeps data until his papers are published, but a lack of raw data has become a common theme in his notices, which now also include four corrections, and one other EOC (making a new total of four). There are no standard rules about how long to store raw data, but one journal that issued two of the new EOCs has since updated its submission policy to require that authors keep data for at least five years.
Walumbwa currently works at Florida International University. When concerns about the statistics were raised about five of his papers in Personnel Psychology, the journal conducted an investigation that led to flagging two of those articles, the expression of concern explains:
Continue reading Concerns attached to three more papers by retraction-laden management researcher
The authors of a paper on a new probiotic strain of bacteria found in pig feces have retracted it from Animal Science Journal after discovering some of the bacteria might have been contaminated.
Readers likely know by now how easy it is for this to happen, as we frequently report on retractions due to similar reasons. Like other instances of mistaken cell identity, the authors of this 2013 paper realized the mistake following further tests of the bacteria used in the experiment.
The retraction for “Isolation, characterization, and effect of administration in vivo, a novel probiotic strain from pig feces”
Continue reading Poop paper flushed due to possible sample contamination