Category: by journal

Stem cell researchers fix two papers following PubPeer comments

Screen Shot 2016-04-13 at 5.56.09 PMA pair of stem cell researchers have earned two corrections, the result of images that were mislabeled, distorted, or compiled incorrectly, according to the notices.

Kang Cheng prepared the gels when he was a research fellow in last author Sanjeev Gupta‘s lab at the Albert Einstein College of Medicine. Gupta told us he reviewed the original gels, and the errors didn’t affect the conclusions in the papers, which were reproducible. He noted he believes the problems are the result of honest mistakes:

The errors did not confer any benefits whatsoever either for the papers or for Dr. Cheng.

On PubPeer, commenters have raised questions about the now corrected papers — along with several others on which Gupta is the senior author, but Cheng is not a co-author.

Edward Burns, research integrity officer at Einstein, told us that the medical school looked into an allegation of misconduct against Gupta:  

Continue reading Stem cell researchers fix two papers following PubPeer comments

Imposter edits journal in latest peer review scam

Screen Shot 2016-04-22 at 5.49.05 PMWhen a computer scientist approached a journal about editing a special issue, little did the journal know he — or she — was using a stolen identity.

Before the jig was up, someone posing as a researcher named Xavier Delorme had edited three articles on optimization problems for The Scientific World Journal. The scammer used a fake email address, the publisher told Retraction Watch — a common strategy for duping journals in peer review scams. When the real Delorme, who works at École Nationale Supérieure des Mines de Saint-Etienne in France, began receiving correspondence about articles he had no involvement in, fake Delorme’s cover was blown.

Upon closer look, the publisher found evidence that peer reviews for some articles may have been submitted using phony identities, as well. The publisher has been unable to identify anyone responsible for the scam.

Here’s the retraction notice, which now appears on five articles from the special issue:

Continue reading Imposter edits journal in latest peer review scam

Physics journal pulls two papers for data shortcuts

New Journal of PhysicsA publisher is retracting two papers today by a team of physicists who took a short cut in reporting their data.

The papers present a method for imaging very small things — like biological processes on a molecular scale — that could be an alternative to electron microscopy, as the authors explain in a video. But after the papers were published in the New Journal of Physics, last author Ulf Leonhardt, now based at the Weizmann Institute of Science, found out that some of the data

 were pixel-by-pixel mirror-symmetric, which is impossible for genuine experimental data.

One of the researchers co-authored a subsequent paper that acknowledges one of the papers incorrectly assumed the data were symmetrical, and could therefore be extrapolated from one side to the other. A representative of the publisher told us they have not seen any signs of misconduct, and the problem seemed to result from a “series of apparent miscommunications between the authors.”

Here’s the retraction notice for “Evidence for subwavelength imaging with positive refraction:” Continue reading Physics journal pulls two papers for data shortcuts

Journal flags duplicated text by gynecologic cancer researcher with 13 retractions

cancers-logo

When journals discover duplicated material, many choose to retract — but a cancer journal recently faced with the same dilemma involving a researcher with multiple retractions under his belt has instead decided to flag the paper with an expression of concern.

An editor told us that Cancers considered retracting the paper, by gynecologic cancer researcher Noriyuki Takai, but decided not to because the paper

contains some novel content that is of interest to the scientific community.

“Epigenetic Therapy in Human Choriocarcinoma,” published in 2010, has been cited once, according to Thomson Reuters Web of Science, and self-plagiarizes from other publications by Takai and his co-author, Hisashi Narahara. Both are researchers at Oita University in Japan.

Here’s the expression of concern:

Continue reading Journal flags duplicated text by gynecologic cancer researcher with 13 retractions

How much does a retracted result pollute the field?

Research Integrity and Peer Review

When a paper is retracted, how many other papers in the same field — which either cite the finding or cite other papers that do — are affected?

That’s the question examined by a study published in BioMed Central’s new journal, Research Integrity and Peer Review. Using the case of a paper retracted from Nature in 2014, the authors found that subsequent research that cites the retracted paper often repeats the problematic finding, thereby spreading it throughout the field. However, papers that indirectly cited the retracted result — by citing the papers that cited the Nature paper, but not the Nature paper itself — typically don’t repeat the retracted result, which limits its spread.

Here’s how the authors describe their findings in the paper: Continue reading How much does a retracted result pollute the field?

Ecologists pull paper on how climate change affects moths after model mixup

science advancesEcologists have retracted a paper published only months ago in Science Advances, after realizing that they had misinterpreted a climate model.

The October paper examined the effects of climate change on populations of 155 species of British moths and butterflies. According to a press release from the authors’ institution, the University of York:

Using data collected by thousands of volunteers through ‘citizen science’ schemes, responses to recent climate change were seen to vary greatly from species to species.

But the authors quickly realized that the variation they had measured was not due to climate change alone, according to the retraction notice they issued for the paper last week:

Continue reading Ecologists pull paper on how climate change affects moths after model mixup

Macchiarini did not obtain necessary ethics approvals, says Swedish Research Council

lancetSurgeon Paolo Macchiarini did not apply for the necessary ethics approval to perform the pioneering transplants he’s known for, according to the Swedish Research Council.

Chief Legal Counsel Anna Hörnlund, who wrote a letter in this week’s The Lancet, says Macchiarini’s work needed to obtain ethical approval from one of six regional ethical review boards, as required by Swedish law — and neither Macchiarini nor his former employer, Karolinska Institutet, did so:

Continue reading Macchiarini did not obtain necessary ethics approvals, says Swedish Research Council

Plant biologist’s paper pulled for falsification, three more questioned on PubPeer

PMBP Cover ImagePhysiology and Molecular Biology of Plants has retracted a paper about using Darjeeling tea clones against abiotic stress for problems with one of the figures.

The specific problem: “falsification/fabrication” of data underlying the figure, which the corresponding author — Sauren Das from the Indian Statistical Institute in Calcutta, West Bengal — couldn’t resolve. Das told us he denies the allegations made by the journal.

Meanwhile, three other papers by Das have been questioned on PubPeer. 

Let’s take a look at the retraction note: Continue reading Plant biologist’s paper pulled for falsification, three more questioned on PubPeer

Why that Evolution paper should never have been retracted: A reviewer speaks out

Ben Ashby

Earlier this week, we covered the case of a retraction that happened against one of the author’s wishes. That’s not all that unusual. What was unusual in this story, however, is that the author who objected to the retraction had published a well-considered paper in which she identified an error in the original work, and corrected it. That led many scientists on Twitter and elsewhere to ask: Doesn’t a retraction send the wrong message? Don’t we want researchers to correct and update their work?

One of the people asking those questions was Ben Ashby, an evolutionary biologist at the University of Exeter in the UK — who, it turns out, reviewed the corrective paper. Here, we present his thoughts: Continue reading Why that Evolution paper should never have been retracted: A reviewer speaks out

Premature adaptation leads to withdrawal of sexual function paper

jsexmartherAhem.

The Journal of Sex & Marital Therapy has retracted a 2012 paper by a pair of authors in Spain who failed to obtain approval to adapt the model of sexual function they used in their study.

The article indicates that the work was based on previous research. But that declaration wasn’t enough to satisfy the creators of the model involved.

As the retraction notice states: Continue reading Premature adaptation leads to withdrawal of sexual function paper