Category: canada

Fat cell paper earns unusually detailed retraction

jcbA pair of cell biologists have taken responsibility for extensive figure errors that scuttled their paper in the Journal of Cell Biology.

While there were five authors, first and last authors Eva Szabo and Michal Opas took responsibility in the notice. A number of figures “contain incorrect data and/or presentation errors,” and the original data isn’t available for verification. The notice is unusually clear about which figures and data are compromised.

The paper was published in 2008, and retracted on January 12, 2015. It has been cited 32 times, according to Thomson Scientific’s Web of Knowledge.

Here’s the notice for “Calreticulin inhibits commitment to adipocyte differentiation’: Continue reading Fat cell paper earns unusually detailed retraction

Geothermal paper undermined by borrowing data without citing

rsesAn international group of engineers lost a paper in November after the journal realized the majority of the data came from a government assessment of Australia’s energy resources without a citation.

The paper, published in Renewable and Sustainable Energy Reviews, focused on geothermal energy, while the government report was far broader in scope. However, the lack of independent research was enough to sink the review. We covered another Renewable and Sustainable Energy Reviews retraction recently, making us wonder if this is part of a crack-down for the journal.

Here’s the notice for “A review of geothermal energy resources in Australia: Current status and prospects”: Continue reading Geothermal paper undermined by borrowing data without citing

Professor defends ripping off his student by insulting him in the media

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Shahid Azam

University of Regina professor Shahid Azam is the kind of thesis advisor that gives prospective grad students nightmares.

According to the CBC, Azam lost a paper in Environmental Geotechnics for plagiarizing the work of his student, Arjun Paul, without bothering to cite it. Azam went on to trash the student’s ability to the CBC reporter.

He’s got two excuses, but we’re not sure which is more repugnant – that he wrote much of his student’s thesis for him and so deserves to steal it, or that plagiarism is standard practice in engineering publishing.

From the CBC: Continue reading Professor defends ripping off his student by insulting him in the media

“Embarrassing and regrettable incident of faulty memory” leads to retraction

aaaIs there any accounting for plagiarism?

A set of educational materials for accounting classes has been retracted for plagiarizing work published a decade earlier.

We spoke to the author of the retracted work, who explained that over the course of ten years of revising his classroom material, he lost track of what was original, and what was written by him or his fellow University of Saskatchewan professors.

Here’s the notice for “Ramm Wholesale: Reviewing Audit Work”: Continue reading “Embarrassing and regrettable incident of faulty memory” leads to retraction

Diabetes researcher Cory Toth now up to nine retractions

neuroscienceCory Toth is up to nine retractions.

The University of Calgary researcher who told us earlier this year that he “will not be publishing in the world of science in the future” has retracted two papers from Neuroscience.

Here’s the notice for “Local erythropoietin signaling enhances regeneration in peripheral axons:” Continue reading Diabetes researcher Cory Toth now up to nine retractions

Diabetes researchers retract, correct and republish study on mortality rates

diabetologiaA diabetes paper that received quite a bit of media attention when it was published in June 2013 was retracted and reissued to fix data errors shortly after publication.

The paper, which showed a steep decline in mortality rates for diabetics in Ontario, Canada, and the UK between 1996 and 2009, was republished in December 2013, with the same conclusion and the errors corrected.

Here’s the retraction notice for “Mortality trends in patients with and without diabetes in Ontario, Canada and the UK from 1996 to 2009: a population-based study”: Continue reading Diabetes researchers retract, correct and republish study on mortality rates

Panel says BMJ was right to not retract two disputed statin papers

bmjA panel reviewing The BMJ‘s handling of two controversial statin papers said the journal didn’t err when it corrected, rather than retracted, the articles.

The articles — a research paper and a commentary — suggested that use of statins in people at low risk for cardiovascular disease could be doing far more harm than good. Both articles inaccurately cited a study that provided data important to their conclusions — an error pointed out vigorously by a British researcher, Rory Collins, who demanded that the journal pull the pieces.

In a letter to Godlee this spring, Collins wrote: Continue reading Panel says BMJ was right to not retract two disputed statin papers

Diabetes researcher Cory Toth up to seven retractions

tothA University of Calgary diabetes researcher, Cory Toth, who told us earlier this year that he would cease publishing in the scientific literature, has two more retractions, making seven.

Both appear in Neurobiology of Disease. Here’s the notice for “Differential impact of diabetes and hypertension in the brain: Adverse effects in white matter:”
Continue reading Diabetes researcher Cory Toth up to seven retractions

Diabetes researcher who says he will no longer publish now up to five retractions

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Cory Toth, via U Calgary

Cory Toth, the University of Calgary diabetes researcher who told us last month he would stop publishing in science following a string of inappropriate manipulations, has retracted another paper.

Here’s the notice in Brain for “Intranasal insulin prevents cognitive decline, cerebral atrophy and white matter changes in murine type I diabetic encephalopathy:” Continue reading Diabetes researcher who says he will no longer publish now up to five retractions

BMJ authors take back inaccurate statin safety statements

bmjcover514Last October, the BMJ published a paper by a group of researchers from the United States and Canada questioning the use of statins in patients considered at low risk of cardiovascular disease.

The article has been cited eight times since then, according to Thomson Scientific’s Web of Knowledge. It mentioned data from another study that reported a high rate of side effects in patients who used the drugs, between 18% and 20% — suggesting that those who received little or no benefit from the therapy could be more more likely to suffer harm than good.

But that citation turns out to have been flawed — prompting the journal to take the unusual step of removing those “statements” from the article and another it published about the issue that has been cited six times. And in an editorial, BMJ editor Fiona Godlee said she has asked a panel of experts to review the original paper to determine if it ought to be retracted completely: Continue reading BMJ authors take back inaccurate statin safety statements