Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘brazil’ Category

PLoS ONE mega-correction, but no retraction, for researcher who sued diabetes journal

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Mario Saad, via unicamp.br

Mario Saad, via unicamp.br

PLoS ONE has just issued a 12-figure correction on a paper by Mario A. Saad, who sued the American Diabetes Association unsuccessfully in an attempt to prevent it from retracting four papers in its flagship journal Diabetes.

The corrections include taking out Western blots copied from another Saad paper, as well as several figures where the bands were “misplaced.”

PubPeer commenters suggest this may not be enough, calling seven additional figures into question. Read the rest of this entry »

Written by Cat Ferguson

March 4th, 2015 at 9:30 am

Judge denies motion by researcher to quash Diabetes expressions of concern

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Mario Saad, via unicamp.br

Mario Saad, via unicamp.br

American Diabetes Association 1, Mario Saad 0.

As reported by the National Law Journal, a federal judge in Boston has denied Saad’s requests to stop the ADA’s flagship journal, Diabetes, from publishing expressions of concern about four of Saad’s papers, and to prevent the journal from retracting the studies.

Saad filed suit against the ADA on February 5. Judge Timothy Hillman wrote in his order yesterday that approving the researcher’s motion would have violated the right to free speech: Read the rest of this entry »

Written by Ivan Oransky

February 25th, 2015 at 8:30 am

Several chem journals neutralize papers from Brazil group over figure fraud

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quimica novaSeveral journals have retracted or corrected papers from a group at State University of Maringá in Brazil over what one chemistry journal calls “fraudulent use” of figures previously published by the authors.

Química Nova, which is retracting a 2013 paper, issued a notice that taps an additional eight articles with Angelica Lazarin as the corresponding author that reused figures. Specifically, the papers included images “where same trace on the figure was assigned to different conditions and/or compounds.”

A number of the papers mentioned in the Química Nova notice were co-authored by Claudio Airoldi, whose group retracted 11 papers in 2011 following concerns over fraudulent nuclear magnetic resonance images.

Read the rest of this entry »

Publisher and uni go head to head over disputed images in diabetes papers

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Mario Saad, via unicamp.br

Mario Saad, via unicamp.br

The State University of Campinas University of Campinas and the American Diabetes Association disagree strongly over how to handle disputed images from faculty member Mario Saad, who is suing the ADA to prevent retraction of his papers.

While the State University of Campinas University of Campinas (Unicamp) acknowledges that 2 of Saad’s papers contain “mistakes”, it concluded there was “not an intention in the actions of the authors,” and the mistakes did not have a negative impact on the scientific community. Ultimately: “the studies published have their own strength, are healthy and were not artificially strengthened by the incorrect images.”

In response, however, Saad’s lawsuit says the ADA asked the school to reinvestigate the articles, and refused to accept any papers from Unicamp faculty in any ADA journals until the issues are resolved.

The ADA has issued four expressions of concern in Saad’s research published in its flagship journal, Diabetes. Saad’s lawsuit aims to prevent the journal from retracting those papers, and asks for monetary compensation.

Retraction Watch has obtained a report of the investigation by Unicamp and Saad’s lawsuit. You can read the full lawsuit here, and the investigation report here.

Here is an excerpt from the Unicamp’s findings: Read the rest of this entry »

Diabetes researcher sues journal to prevent retractions of papers cited more than 600 times

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Mario Saad, via unicamp.br

Mario Saad, via unicamp.br

Mario A. Saad, who last year retracted a paper for plagiarism, is now suing the American Diabetes Association over four expressions of concern in its flagship journal, Diabetes.

As reported in the Boston Business Journal, Saad’s lawsuit claims that his institution, the State University of Campinas, investigated two articles at the journal’s behest. The American Diabetes Association was unhappy with the results, and asked the school to reopen the investigation, including two additional papers.

Saad is suing to prevent the journal from retracting the papers, in addition to monetary compensation.

Read the rest of this entry »

Heart journal pulls paper for image manipulation

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cardresCardiovascular Research has retracted a 2010 paper by a group of prominent cardiology researchers in Brazil.

The reason: Image manipulation — which the authors say didn’t materially affect the conclusions of the paper.

The article, “FAK mediates the activation of cardiac fibroblasts induced by mechanical stress through regulation of the mTOR complex,” came from a group led by Ana Paula Dalla Costa, from the State University of Campinas.

Here’s the abstract of the study, which has been cited 19 times, according to Thomson Scientific’s Web of Knowledge: Read the rest of this entry »

Ripping off someone else’s thesis sinks paper on chicken temperatures

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ISB_IJBProof that people will plagiarize anything they think they can get away with: a Brazilian scientist plagiarized a masters’ student’s thesis on the surface temperature of chickens.

We spoke with International Journal of Biometeorology editor-in-chief Scott Sheridan about the case: Read the rest of this entry »

Editorial mix-up leads to duplication, retraction of physics paper

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A missed withdrawal request has led to doubled up publication and a later retraction for Brazilian physicists, through no fault of their own.

Atmospheric Plasma Treatment of Carbon Fibers for Enhancement of Their Adhesion Properties” was presented at an Institute of Physics (IOP) conference in 2010. The proceedings weren’t published until May 2014.

In the meantime, the plasma scientists withdrew their paper from consideration and submitted it to IEEE Transactions on Plasma Science, where it was published in February 2013. Unfortunately, in the four year delay between the conference and the Institute of Physics publication, the withdrawal request got lost.

Here’s the notice: Read the rest of this entry »

Written by Cat Ferguson

July 21st, 2014 at 11:30 am

Physicists with retraction for a “pattern that was unphysical” lose another for manipulation

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journal of applied physicsIn September, we wrote about the retraction of a physics paper for “a pattern that was unphysical.”

The team, whose first author, R.K. Singhal refused to sign the notice, has had another paper retracted, this one in the Journal of Applied Physics. Here’s the notice for “Study of electronic structure and magnetization correlations in hydrogenated and vacuum annealed Ni doped ZnO:” Read the rest of this entry »

Editor in chief steps down after being found plagiarizing in her own journal

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diab met syndImagine you were a cop, sitting in your squad car at the side of the road with a radar gun, when you clock someone speeding. You turn on your lights, pull the speedster over to the side of the road, and walk to her driver’s side window.

Just as you say “Driver’s license and registration, please,” you realize the driver is your squad captain. Oops.

That must have been something like what it was like — with plagiarism detection software sitting in for the radar gun — for the co-editor-in-chief of Diabetology & Metabolic Syndrome when he realized that Marilia de Brito Gomes, the other co-editor-in-chief, had published two papers in their journal that contained plagiarized passages.

Here’s the notice for “Historical facts of screening and diagnosing diabetes in pregnancy:” Read the rest of this entry »