Category: investigator error

Doing the right thing: Psychology researchers retract after realizing data “were not analyzed properly”

cerebral cortexAmid an ongoing investigation, a group of psychology researchers at the University of Leuven (KU Leuven) in Belgium have taken a painful decision to retract a paper now that they’ve realized there were serious problems with one aspect of the work.

Here’s the notice for “The Emergence of Orthographic Word Representations in the Brain: Evaluating a Neural Shape-Based Framework Using fMRI and the HMAX Model,” by Wouter Braet, Jonas Kubilius, Johan Wagemans, and Hans P. Op de Beeck: Continue reading Doing the right thing: Psychology researchers retract after realizing data “were not analyzed properly”

“Technical but fundamental errors” lead to retraction of brain tumor paper

neuro-oncologyThe journal Neuro-Oncology has retracted a 2011 paper by a group of researchers in Japan who had purported to find a genetic mechanism for how fluorescence can be used to diagnose certain brain tumors.

The paper, “Enhanced expression of coproporphyrinogen oxidase in malignant brain tumors: CPOX expression and 5-ALA–induced fluorescence,” reported measurements using quantitative real-time (qRT)-PCR.

As the retraction notice explains: Continue reading “Technical but fundamental errors” lead to retraction of brain tumor paper

Cossu-UCL follow-up: PLOS ONE paper to be corrected

Cossu
Cossu

We have a follow-up from last week’s story about a University College London (UCL) investigation into the work of Giulio Cossu that found errors but no “deliberate intention to mislead.”UCL said it will not make the full report available: Continue reading Cossu-UCL follow-up: PLOS ONE paper to be corrected

UCL finds errors in work by biologist Cossu, but no “deliberate intention to mislead”

cossu
Cossu

A cell biologist at University College London (UCL) who has had one paper retracted and another corrected has been cleared of misconduct by the university.

The news, first reported by Times Higher Education, comes after a retraction of a paper by Giulio Cossu prompted by pseudonymous whistleblower Clare Francis that we wrote about in January.

Here’s the full text of UCL’s statement on the investigation: Continue reading UCL finds errors in work by biologist Cossu, but no “deliberate intention to mislead”

Failure to reproduce experiments, errors lead to retraction of pancreatic cancer paper

lab investThe authors of a paper in Laboratory Investigation have retracted it after they were unable to “reproduce key experiments,” and discovered “several minor errors.”

Here’s the retraction notice for “Slug enhances invasion ability of pancreatic cancer cells through upregulation of matrix metalloproteinase-9 and actin cytoskeleton remodeling,” by Liqun Wu and colleagues of The Affiliated Hospital of Medical College, QingDao University, in China’s Shan Dong Province: Continue reading Failure to reproduce experiments, errors lead to retraction of pancreatic cancer paper

Authors retract CT scan-cancer paper, citing faulty data

medicine coverA group of cancer researchers in Japan has retracted their 2011 paper in the journal Medicine. The reason: They seem to have had some trouble — well, perhaps a bit more than some — with their patient population.

The article, titled “Usefulness of systemic CT scanning in the detection of malignant lymphadenopathy,” came from the lab of Norio Komatsu, a hematologist at Juntendo University School of Medicine.

The paper’s no longer online, but we did find an abstract floating around: Continue reading Authors retract CT scan-cancer paper, citing faulty data

Influential Reinhart-Rogoff economics paper suffers spreadsheet error

nberApril showers bring … database errors?

The other day, we wrote about two retractions in the Journal of the American College of Cardiology, and another in the American Heart Journal, stemming from database errors.

Seems to be catching.

The Economist (among other outlets) this week is reporting about a similar nother database glitch — not, we’ll admit, a retraction — involving a landmark 2010 paper by a pair of highly influential economists. The controversial article, “Growth in a Time of Debt,” by Harvard scholars Carmen Reinhart and Kenneth Rogoff, argued that countries that took on debt in excess of 90% of their gross domestic product suffered sharp drops in economic growth. That evidence became grist for the austerity mill, including Paul Ryan.

Turns out, that conclusion was based to some extent on an Excel error. Continue reading Influential Reinhart-Rogoff economics paper suffers spreadsheet error

Calibration error sends moisture paper down the drain

wrrcoverScientific experiments are like recipes: With the right components and the proper steps, the end result can be a thing of beauty. But if you start with a cup of salt instead of a cup of flour, well, even the neighbor’s schnauzer won’t touch that batch of sugar cookies.

That’s a little like the situation we have in “Controls on topographic dependence and temporal instability in catchment-scale soil moisture patterns,” a paper published in February in Water Resources Research by Michael Coleman and Jeffrey Niemann of Colorado State University.

According to the notice:

Continue reading Calibration error sends moisture paper down the drain

Spud dud, as agricultural industry potato paper gets pulled a decade after publication

plantphyscoverPlant Physiology, the official journal of the American Society of Plant Biologists, has retracted a 2004 article by a team of ag industry researchers, including a former husband-wife duo, for what could be misconduct by the husband.

The retraction notice is vague enough, however, that we’re not entirely sure what went wrong, and no one wants to help us confirm — or even attempt to disprove — our inferences. Continue reading Spud dud, as agricultural industry potato paper gets pulled a decade after publication

Update on “greatly enhanced” photonics paper, with two corrections — one by journal, one by us

nature photonicsLast month we wrote about a paper in Nature Photonics that, because of a measurement error, had to be retracted.

It turns out that wasn’t the only problem with the article — but we’re afraid that the glitch requires us to issue a correction.

The article, “Greatly enhanced continuous-wave terahertz emission by nano-electrodes in a photoconductive photomixer,” has listed Aaron Danner as the last — and, we’d assumed — senior author of the paper. But as Danner pointed out to us, that was a mistake by Nature Photonics.

Continue reading Update on “greatly enhanced” photonics paper, with two corrections — one by journal, one by us