Category: by journal

Research misconduct finding — which university won’t discuss — leads to second retraction for prominent physicist

A rising star in nanotechnology, Dmitri Lapotko, has received his second retraction within a month over “a finding of research misconduct” that the university will apparently only disclose on a need-to-know basis.

According to the notice, the journal’s editor and publisher issued the retraction after Lapotko’s former institution—Rice University in Houston—notified them of research misconduct and cited figure duplication issues, which meant the results “should not be relied upon and may be scientifically unsound.”

We recently covered the Belarusian physicist’s first retraction in the journal Theranostics, in which an official at Rice would not confirm a misconduct inquiry, telling us that, “Rice University’s investigations of research misconduct are confidential.”

This time, however, the retraction notice explicitly states that a Rice University research integrity officer reported research misconduct to the journal Applied Physics Letters (APL). We contacted the official, B.J. Almond, who still stuck to the original script: Continue reading Research misconduct finding — which university won’t discuss — leads to second retraction for prominent physicist

“Strange. Very strange:” Retracted nutrition study reappears in new journal

In an unusual turn of events, a nutrition paper has come back to life a year after being pulled from its original publication.

After the paper was retracted from the journal Obesity, the authors revised it and republished it in another journal, Pediatric Obesity. Both journals are published by Wiley. The second version of the paper doesn’t mention the previous retraction. Indeed, the journal editor told us he didn’t know the paper had been retracted. Still, he stood by his decision to publish it.

The authors told us the paper was retracted after editors at Obesity raised concerns over the authors’ methodology. The authors revised the paper, adding some analysis and explanation of their methodological approach, and said the new version was accepted by peer reviewers before being published in Pediatric Obesity.

However, an outside expert who reviewed both papers for us said he thinks the authors didn’t change enough. According to Patrick McKnight, head of the Measurement, Research methodology, Evaluation, and Statistics group at George Mason University and a Statistical Advisory Board member of STATS.org:

Continue reading “Strange. Very strange:” Retracted nutrition study reappears in new journal

Plant scientist logs 4 more notices over figure errors

Researchers in China have retracted a paper and corrected three others in a plant journal, citing problems with multiple figures.

Lixin Zhang, from the Chinese Academy of Sciences in Beijing, is corresponding author on all four papers, published by Plant Physiology. We’ve reported on three retractions and two corrections from Lixin Zhang and some of the same co-authors, bringing Zhang’s total to five retractions and four corrections, by our count.

According to the retraction notice, the authors agreed to pull the article because of figure-related “irregularities and inappropriate data handling” — but despite these issues, they remain confident that their conclusions are still valid.

Here’s the latest retraction notice, issued this February, for “Cooperation of LPA3 and LPA2 Is Essential for Photosystem II Assembly in Arabidopsis:”  Continue reading Plant scientist logs 4 more notices over figure errors

Patient misdiagnosed with rare neurological side effect in retracted case study

When two surgeons in Greece learned that a patient had developed a rare side effect following weight loss surgery, they were eager to publish the case.

After extensive testing, the patient was diagnosed with Wernicke’s encephalopathy—a neurological disorder caused by thiamine deficiency—following a sleeve gastrectomy procedure. As the authors note in the paper, they had seen only eight other cases following the procedure in the literature.

It turns out, theirs was not the ninth. After the patient unfortunately died, he was examined by a coroner, who ruled he did not, in fact, have Wernicke’s encephalopathy. So Dimitrios Manatakis and Nikolaos Georgopoulos, both based at Athens Naval and Veterans Hospital in Greece, have retracted their 2014 case study.

When the first learned of the patient, the authors wanted to alert the surgical community to the case, given the rarity of this side effect, Manatakis told us: Continue reading Patient misdiagnosed with rare neurological side effect in retracted case study

Nightmare scenario: Text stolen from manuscript during review

A food science journal has retracted a paper over “a breach of reviewer confidentiality,” after editors learned it contained text from an unpublished manuscript — which one of the authors appears to have reviewed for another journal.

The publisher and editors-in-chief of the Journal of Food Process Engineering became aware of the breach when the author of the unpublished manuscript lodged a complaint that his paper, under review at another journal, had been plagiarized by the now retracted paper.

We’re hazy on a few details in this case. Although the journal editor told us the “main author” of the retracted paper reviewed the original manuscript for another journal, the corresponding author of the retracted paper said he was not to blame. (More on that below.)

When looking into the matter, the publisher found that one of the co-authors of the published paper had acted as a reviewer of the unpublished manuscript. Alexandra Cury, an associate editor at Wiley, explained: Continue reading Nightmare scenario: Text stolen from manuscript during review

An editor in chief was caught manipulating citations. Now he’s been asked to resign.

Artemi Cerdà

An earth science journal has asked an editor to resign after it was revealed he had been manipulating citations at multiple journals.

Artemi Cerdà had already agreed to step down temporarily from Land Degradation & Development after the publisher, Wiley, was alerted that Cerdà had resigned from other journals for citation manipulation. In a new statement, the journal announces that Cerdà’s resignation has become permanent.

Here’s the entire statement:

Continue reading An editor in chief was caught manipulating citations. Now he’s been asked to resign.

Macchiarini blames Karolinska for losing data as he retracts 2014 paper

Ask and ye shall receive: A journal has retracted a 2014 paper by Paolo Macchiarini, upon request from the Karolinska Institutet (KI).

The latest news is only one step in a long-running saga about former star surgeon Macchiarini, who was dismissed from KI last year. To read more, check out our timeline.

KI announced it was asking the journal to pull the paper late last year, after concluding that four authors — including Macchiarini — were guilty of scientific misconduct. The paper had already been flagged by the journal with an expression of concern, noting the data presented in the paper may not be “fully representative” of the experiments.

Today, the journal issued a retraction notice, saying the authors wanted to retract the paper. All of the authors who could be reached have agreed to the retraction, including Macchiarini.

Here’s more from the notice:

Continue reading Macchiarini blames Karolinska for losing data as he retracts 2014 paper

Nature paper adds non-reproducibility to its list of woes

Despite taking some serious hits, a 2006 letter in Nature isn’t going anywhere.

Years ago, a university committee determined that two figures in the letter had been falsified. The journal chose to correct the paper, rather than retract it — and then, the next year, published a correction of that correction due to “an error in the production process.” To round it out, in June of last year, Nature published a rebuttal from a separate research group, who had failed to replicate the letter’s results.

Still, the first author told us there are no plans to retract the paper, since the follow up experiments published in the corrections confirmed the paper’s conclusions.

Continue reading Nature paper adds non-reproducibility to its list of woes

What leads to bias in the scientific literature? New study tries to answer

By now, most of our readers are aware that some fields of science have a reproducibility problem. Part of the problem, some argue, is the publishing community’s bias toward dramatic findings — namely, studies that show something has an effect on something else are more likely to be published than studies that don’t.

Many have argued that scientists publish such data because that’s what is rewarded — by journals and, indirectly, by funders and employers, who judge a scientist based on his or her publication record. But a new meta-analysis in PNAS is saying it’s a bit more complicated than that.

In a paper released today, researchers led by Daniele Fanelli and John Ioannidis — both at Stanford University — suggest that the so-called “pressure-to-publish” does not appear to bias studies toward larger so-called “effect sizes.” Instead, the researchers argue that other factors were a bigger source of bias than the pressure-to-publish, namely the use of small sample sizes (which could contain a skewed sample that shows stronger effects), and relegating studies with smaller effects to the “gray literature,” such as conference proceedings, PhD theses, and other less publicized formats.

However, Ferric Fang of the University of Washington — who did not participate in the study — approached the findings with some caution:

Continue reading What leads to bias in the scientific literature? New study tries to answer

Scientist who sued university earns two more retractions, bringing total to five

A scientist who sued his employer for millions of dollars has earned two more retractions, for papers that had already been flagged by the journal.

By our count, Rakesh Kumar now has five retractions and multiple corrections.

Kumar sued his employer, George Washington University, for $8 million, alleging emotional distress when they put him on leave from his position as department chair following a finding of misconduct. That suit was settled last year, for undisclosed terms.

The two newest retractions in the Journal of Biological Chemistry — which tagged the papers with Expressions of Concern last year — both state that, according to Kumar, the problematic figures were assembled by “specific co-authors” — unnamed — in his lab. Here’s the first notice:

Continue reading Scientist who sued university earns two more retractions, bringing total to five