Category: physical sciences retractions

“Searching our souls”: Authors retract paper after researcher admits to fabricating data

Researchers at a prominent Japanese university have retracted a 2016 paper in a chemistry journal after the first author admitted to scientific misconduct.

According to the notice, Kyushu University investigated and verified that the first author had committed scientific misconduct.

We requested a copy of the misconduct report, which revealed that the researcher, Prasenjit Mahato, a postdoctoral fellow at Kyushu University who is no longer affiliated with the university, “admitted to falsifying research” in two papers on which he was first author: a highly cited 2015 paper in Nature Materials, which was retracted in 2016, as well as the 2016 paper in Journal of the American Chemical Society (JACS), retracted earlier this month. The university investigated and confirmed misconduct in both papers.

We covered the Nature Materials retraction last year, but at the time, the paper’s corresponding author, Nobuo Kimizuka, only told us that the “matter has been under investigation by the formal investigation panel of our University.”

According to the five-page misconduct report — which we translated from Japanese using One Hour Translation and is also available in Japanese on the university’s website — in July 2016, a member of the lab (“Faculty Member B”) began to suspect a problem after he reviewed the data with Mahato (“the defendant”): Continue reading “Searching our souls”: Authors retract paper after researcher admits to fabricating data

No new math: Journal pulls math paper with “already known” results

A mathematics journal has withdrawn a paper after discovering that the results were not new.

The paper, published online in March in Communications in Algebra, explored the properties of group rings, a discipline of algebra. According to editor-in-chief of the journal, Jason Bell, author Francis E. A. Johnson, a professor of mathematics at the University College London, devised a property associated with group rings, and defined it using the term “weakly finite.” But, at the time, Johnson was not aware that other experts had already defined the same property, using the term “stably finite.”

Bell, a professor of mathematics at the University of Waterloo in Ontario, and Lance Small, the journal’s other editor-in-chief, stressed that this issue was “definitely not a matter of plagiarism.” Bell and Small told us in a joint statement that “it was ultimately no one’s fault—it is just one of these things that can happen occasionally in mathematics research.” But given the overlap, the editors thought it best to withdraw the paper, they said: Continue reading No new math: Journal pulls math paper with “already known” results

Rutgers prof announces retraction on his blog

A Rutgers computer scientist is retracting conference proceedings via an unusual channel: his personal blog.

On April 7, Anand Sarwate wrote that he was retracting a mathematical proof from the proceedings from the 2016 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), after discovering errors that invalidated the result.

He explains in the blog post why the mistake occurred:

Continue reading Rutgers prof announces retraction on his blog

A retraction gets retracted — but the first author’s contract is still terminated

After issuing a retraction notice May 30 for a biomedical engineering paper, the journal has since pulled the notice, citing “a potential problem.”

After doing some digging, we’ve learned more about the “potential problem.”

Apparently, the retraction was requested by Nanyang Technological University (NTU) in Singapore. NTU has been investigating the first author for months, after it received an allegation about an unrelated manuscript. As a result, NTU terminated first author Hamidreza Namazi‘s contract as a research fellow earlier this year.

As part of the investigation, NTU began to look at Namazi’s other papers, and discovered several with potential problems — including this one, which NTU believes did not receive proper ethical approvals. So it contacted the journal to raise its concerns.

Namazi, however, told us that he and his colleague obtained approval from another organization, but didn’t make that clear in the paper — so the journal has retracted its retraction notice while it investigates Namazi’s claim.

In place of the original retraction notice, a notice now reads:

Continue reading A retraction gets retracted — but the first author’s contract is still terminated

Paper with duplicated image “sequentially builds” on neuroscience work, authors argue

A neurochemistry journal has retracted a paper from a group in China over a duplicated image.

According to the notice, the authors used the same image in the two papers to represent different experimental conditions. The only distinguishing feature between the images: “apparent brightness changes.”

The authors defended their actions, explaining that the research published in Journal of Neurochemistry “sequentially builds” on their previous study in Journal of Neuroinflammation, which they mention in the 2015 paper’s discussion. In the notice, the authors were quoted saying:  Continue reading Paper with duplicated image “sequentially builds” on neuroscience work, authors argue

Authors retract much-debated blockchain paper from F1000

The authors of a popular — and heavily debated — F1000Research paper proposing a method to prevent scientific misconduct have decided to retract it.

The paper was initially criticized for allegedly plagiarizing from a graduate student’s blog — and revised to try to “rectify the overlap.” But according to F1000, it is now being retracted after an additional expert identified problems with the methodology.

Today, F1000 added this editorial note to the paper:

Continue reading Authors retract much-debated blockchain paper from F1000

Author retracts nanotechnology paper over doubts about key results

The corresponding author of a 2015 nanotechnology paper has penned a lengthy — and revealing — retraction notice, explaining why he is not certain about the findings.

In the notice, Chang Ming Li from the Institute for Clean Energy & Advanced Materials (ICEAM) at Southwest University in China, states that there is “insufficient evidence to conclusively” identify the composition of the nanowire array described in the article, which “severely undermines the validity of the reported conclusions.”

The 2015 paper has been considered “highly cited” by Clarivate Analytics’ Web of Science, formerly part of Thomson Reuters, meaning it has received a disproportionate amount of cites given its field and publication year.

Li also said that the paper — which appeared in Physical Chemistry, Chemical Physics — was “submitted and published without my knowledge or permission.” He has not responded to our request to explain how that could have happened, given that he was the corresponding author. Continue reading Author retracts nanotechnology paper over doubts about key results

First author objects to retraction (his fourth) in chemistry journal

The first author of a 2013 chemistry paper is objecting to his co-authors’ decision to retract the paper, which contains duplicated figures.

We recently encountered a similar scenario with papers by first author Khalid Mahmood. In late 2015, Mahmood lost three papers in the journal ACS Applied Materials & Interfaces over duplicated images. One of the notices also indicated that the figures had “been published elsewhere and identified with different samples” — the same language used in the notice of the most recent retraction, in Journal of Materials Chemistry C.

Mahmood performed the work on the papers at Korea Advanced Institute of Science and Technology (KAIST), along with his two co-authors, Seung Bin Park and Hyung Jin Sung (also co-authors on two of the retracted papers in ACS Applied Materials & Interfaces).

Seung Bin Park, who is dean of the College of Engineering at KAIST, told us: Continue reading First author objects to retraction (his fourth) in chemistry journal

Top physicist loses another paper; tally now up to 7

A physics journal has retracted a paper from a leading physicist in India over duplication.

The paper’s first and corresponding Naba K. Sahoo has had six papers retracted for the same reason — four earlier this year and two last year.

The new retraction brings Sahoo’s total to seven, by our count.

The duplication allegations began several years ago, after Sahoo’s colleagues at Bhabha Atomic Research Centre (BARC), part of Indian government’s Department of Atomic Energy, accused him of plagiarizing his own work.

Thomas Lippert, editor-in chief of Applied Physics A: Material Science & Processing, told us: Continue reading Top physicist loses another paper; tally now up to 7

Chemist wins injunction against university trying to revoke her degree

A scientist has won an injunction against the University of Texas at Austin, which was deciding whether or not to revoke her PhD.

We’ve been covering the case of Suvi Orr, a chemist now based at Pfizer who earned a PhD in 2008, for a few years. During that time, UT has tried to revoke her degree twice, after the paper that made up part of her dissertation was retracted in 2012 — for allegedly containing falsified data, according to the school. The university revoked her degree in 2014, then reinstated it after she sued.

Last year, the school tried to revoke it again, prompting Orr to sue for a second time — and ask for more than $95,000 in legal fees and expenses.

In a decision released April 20, a Texas Court of Appeals has upheld Orr’s request for an injunction against UT, preventing it from deciding whether to revoke her degree. Specifically, Orr asked that UT not be allowed to make a decision until the court has weighed in on a separate appeal, in which Orr argues the university doesn’t have the right to revoke her degree.

According to her lawyer, David Sergi:

Continue reading Chemist wins injunction against university trying to revoke her degree