A quick Physical Review Letters retraction after author realizes analysis was “performed incorrectly”

One of the authors of a paper in Physical Review Letters has withdrawn it, after someone pointed out an error.

The paper, “Coulomb Forces on DNA Polymers in Charged Fluidic Nanoslits,” was written by Brown University’s Derek Stein and one of his graduate students, Yongqiang Ren. It was published in February of this year, and the retraction ran on July 20.

The notice is forthright: Continue reading A quick Physical Review Letters retraction after author realizes analysis was “performed incorrectly”

Plagiarism forces retraction of mathematical modeling paper

A group of Turkish researchers has retracted a paper purporting to show a method of calculating the thermodynamic properties of certain transition metals, because it was plagiarized from another article. The withdrawn paper, “A simple analytical EAM model for some bcc metals,” was published in 2010 in Communications in Nonlinear Science and Numerical Simulation.

Here’s the notice (we added a link to the plagiarized paper): Continue reading Plagiarism forces retraction of mathematical modeling paper

Physics paper retracted “on ethical grounds” — aka the data had already been published

There was a curious retraction published online last month in Physica Scripta, an Institute of Physics journal. The notice, for “Response of Cu 0.5 (Tl 0.5-y Hg y)Ba 2 Ca 3 Zn 2 Cu 2 O 12-δ (y =0, 0.15, 0.25 and 0.35) superconductors in electric and magnetic fields,” reads as follows: Continue reading Physics paper retracted “on ethical grounds” — aka the data had already been published

Another unofficial record? Authors walk back arcane blue crab paper — 15 years later

Portunus trituberculatus, courtesy NOAA

If a paper that has never been cited is retracted, will it be missed?

Japanese researchers have retracted an obscure 1996 article in an equally obscure physics journal after concluding — some 15 years later — that their fundamental assertion was mistaken.

The paper, “Uptake and excretion of cobalt in the crustacean Portunus trituberculatus,” in  Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, purported to show that a form of the element cobalt might be helpful in tracing the growth of Portunus trituberculatus, otherwise known as the blue crab.

That’s the world’s most harvested crab species and a particular favorite in Asia. But don’t confuse it with the Chesapeake Bay blue crab, Callinectes sapidus, of William Warner’s Pulitzer Prize-winning book, Beautiful Swimmers.

The problem with such elemental tracers, it seems, is that crabs moult repeatedly, shedding their shells, along with the elements that build up inside them. According to researchers from the Research Institute for Advanced Science and Technology and the Osaka Prefectural Fisheries Experimental Station, however, a volatile form of cobalt, previously undetected, could be a suitable element for tracing the growth of both crabs and prawns — another important aquaculture species in Asia — over time.

But that turned out to be a (shell)fish tale. Per the retraction notice, which appears in the May 15, 2011 issue of the journal: Continue reading Another unofficial record? Authors walk back arcane blue crab paper — 15 years later

Physics Letters A paper gets retracted twice, but the issues remain “unsettled”

A retraction with a complex and yet unclear narrative appears in the April 25, 2011 issue of Physics Letters A. According to the notice, for “Nuclear spin magnetic resonance force microscopy using slice modulation:”

This article has been retracted at the request of the Editors of Physics Letters A because there are unsettled issues on how the research was carried out, how the data were acquired and analyzed. The article was removed from the journal issue before printing although it appeared online. In addition, the article was accidentally published online twice in the same journal.

As the notice suggests, this was actually the second retraction, of the same paper. Here was the first, in 2008, shortly after the paper was published. And here is a removal notice, from later that year. We haven’t come across such an occurrence before, although we’ve been writing Retraction Watch for less than a year.

There are six editors of Physics Letters A, and we tried them all for comment on the “unsettled issues.” A few pointed to Burkhard Fricke, the communicating editor for the paper, who is no longer with the journal. He didn’t respond to requests for more information.

A few referred us to Karine van Wetering, a publisher at Elsevier: Continue reading Physics Letters A paper gets retracted twice, but the issues remain “unsettled”

Crystal myth: 11 more retractions from crystallography journal after 2010 fakery

About a year ago, Acta Crystallographica Section E issued a bombshell editorial. The journal was pulling 70 papers from two groups of researchers at the same Chinese university after discovering that the structures they reported had been fakes.

As the editorial explained, the fraud was detected during a routine review of the structures by Ton Spek, of Utrecht University in The Netherlands. According to the editorial: Continue reading Crystal myth: 11 more retractions from crystallography journal after 2010 fakery

“Biologist realizes he’s been studying Cadbury egg”: Mislabeled bottle leads to Phys Rev B retraction

The quote in the title of this post is a potential Onion headline that didn’t make it into print. It was part of an episode of This American Life that aired last week, and it seemed apropos, even though the subject here is superconductors rather than biology.

After all, we’ve written about a retraction that resulted from ordering the wrong mice. Today, we bring you the tale of a retraction caused by a mislabeled bottle. According to a retraction notice that appeared online last month in Physical Review B: Continue reading “Biologist realizes he’s been studying Cadbury egg”: Mislabeled bottle leads to Phys Rev B retraction

Obfuscation watch: Self-plagiarism (we think) leads to retraction of nanorod paper in Applied Physics Letters

C. P. Snow famously bemoaned the gulf between science and the humanities. The following retraction might be the sort of thing that would have given the physicist-cum-author fits for its estrangement from the English language.

Writing in the latest issue of Applied Physics Letters, a team from China Singapore and MIT appear to be confessing a case of self-plagiarism in their 2005 paper, “Growth of single crystal ZnO nanorods on GaN using an aqueous solution method: (we added a link to the earlier paper)” Continue reading Obfuscation watch: Self-plagiarism (we think) leads to retraction of nanorod paper in Applied Physics Letters