Category: physical sciences retractions

What really happened when two mathematicians tried to publish a paper on gender differences? The tale of the emails

Quillette

Retraction Watch readers may be familiar with the story of a paper about gender differences by two mathematicians. Last month, in Weekend Reads, we highlighted an account of that story, which appeared in Quillette.

The piece, by one of the paper’s authors — titled “Academic Activists Send a Published Paper Down the Memory Hole” — touches on issues familiar to those who follow the culture wars, which isn’t all that surprising given the controversial topic, one once discussed by then-Harvard president Larry Summers.

The piece has generated a great deal of conversation, some of it quite heated, and a number of participants in those conversations have suggested that seeing the emails that the author of the Quillette piece says support his account would be useful. That’s what this post is mostly designed to do: Surface those emails. Continue reading What really happened when two mathematicians tried to publish a paper on gender differences? The tale of the emails

UPDATED: Elsevier retracts a paper on solar cells that appears to plagiarize a Nature journal. But the reason is…odd.

The similarities between recent papers in two different journals about energy were striking — so striking that a number of people have taken to Twitter and Facebook to let the world know about them.

[1415 UTC, August 29, 2018: See update at the end of this post.]

One paper, “Systematic investigation of the impact of operation conditions on the degradation behaviour of perovskite solar cells,” was authored by a group of researchers in Lausanne, Switzerland and appeared on January 1, 2018 in Nature Energy. Its abstract reads: Continue reading UPDATED: Elsevier retracts a paper on solar cells that appears to plagiarize a Nature journal. But the reason is…odd.

Two years of stonewalling: What happened when a scientist filed a public records request for NASA code

Nathan Myhrvold

Retraction Watch readers may know Nathan Myhrvold, who holds a PhD in physics, as the former chief technology officer at Microsoft, or as the author of Modernist Cuisine. They may also recall that he questioned a pair of papers in Nature about dinosaurs. In that vein, he has also been raising concerns about papers describing the sizes of asteroids. (Not everyone shares those concerns; the authors of the original papers don’t, and astronomer Phil Plait said Myrhvold was wrong in 2016.) Last month, Myhrvold published a peer-reviewed paper as part of his critique. The final version of that paper went live today, as did a story about the science in The New York Times and a detailed explanation by Myrhvold in Medium. As the discussion over the results continues, here he shares his experience trying to obtain details about the methodology the authors used.

Two years ago, I uploaded a preprint to arXiv.org describing what I considered serious problems, including apparently irreproducible results, that I had uncovered when analyzing a set of research articles published by the NASA Jet Propulsion Laboratory (JPL) NEOWISE project. NEOWISE is the largest scientific analysis of asteroids ever conducted; the researchers on the project have so far published estimated sizes of more than 164,000 objects in the solar system, estimates they have claimed were all derived by applying a standard approach to raw observations from the WISE space telescope.

My findings generated quite a stir in the media, including stories in The New York Times, Science, and Scientific American, among other outlets. My hope and expectation was that shining light on these troubling issues would spur the JPL researchers to retract or correct their papers. At the very least, I thought, they would release the various unpublished techniques that they had used in a series of highly cited papers, stretching from 2011 to 2015, thus lifting the veil of secrecy that had prevented me and other astronomers from replicating their results. Continue reading Two years of stonewalling: What happened when a scientist filed a public records request for NASA code

Now-retracted chem paper’s problems “should have been noticed by the referees,” group says

Last year, chemist Marcus Tius at the University of Hawaii saw a paper describing the synthesis of some organic compounds, and was “struck by the implausibility” of the reported structures. So he joined up with some colleagues to try to replicate the data.

While Tius and his team were trying to repeat the experiment, however, in December 2017 the journal — Organic Letters — retracted the paper. The journal, published by the American Chemical Society, noted that the authors had not been able to produce crystal structures that confirm they had synthesized those compounds in particular. So Tius and his colleagues knew they couldn’t replicate the findings — but carried on their experiment anyway:

Continue reading Now-retracted chem paper’s problems “should have been noticed by the referees,” group says

Survey says: A researcher wasn’t sure if he needed to correct a paper. So he created a poll.

Craig Jones

When geophysicist Craig Jones realized a figure in one of his published papers contained an error, he was on the fence about what to do. It was a clear mistake, but he’d seen much larger mistakes go uncorrected by other authors. Unsure if it warranted a correction, Jones polled readers of his blog to see what they thought.

The answer: 37 people responded, 23 of whom (62%) said he should correct the paper. In an update, Jones said he was prepping a correction to submit to the journal.

Jones, who is based at the University of Colorado Boulder and blogs under the title the “Grumpy Geophysicist,” told Retraction Watch:

Continue reading Survey says: A researcher wasn’t sure if he needed to correct a paper. So he created a poll.

Thousands boycott new Nature journal about machine learning

More than two thousand researchers have signed a petition to boycott a new Nature journal over the fact it will be available only by subscription.

The new journal — Nature Machine Intelligence, about machine learning — plans to charge readers for access, unlike most other journals in the field. The researchers who signed the petition have pledged not to submit their work to the new journal, and will decline to review or edit papers for it, as well.

Most journals published by Nature Publishing Group are available only by subscription — but that doesn’t work for the machine learning community, the signatories argue:

Continue reading Thousands boycott new Nature journal about machine learning

Chemists duke it out over who was first to discover a 30-year-old technique

Decades ago, unbeknownst to each other, two chemists were independently working on a screening approach to identify new potential drugs. Both published papers about the technique around the same time. So now, when scientists write papers that cite the technique, who should get credit for discovering it?

Decades later, that question still hasn’t been answered — and the researchers continue to argue, this time over one’s decision not to cite the other’s work.  

More than 30 years ago, Árpád Furka—now retired from Eötvös Loránd University in Budapest—developed an approach he says has had “outstanding importance” in drug development. The technique, called split-mix synthesis, made it possible to synthesize and screen millions of peptides at once, instead of one by one. Furka patented the method in 1982, presented an abstract in 1988, and published a paper in 1991. Continue reading Chemists duke it out over who was first to discover a 30-year-old technique

Author under fire has eight papers retracted, including seven from one journal

A researcher whose work on the use of nanomaterials has been heavily scrutinized on PubPeer — with one critic alleging a paper contained “obviously fabricated” images — has lost eight papers. [Editor’s note: See update below.]

The eight articles — seven from Biosensors and Bioelectronics and one from Analytica Chimica Acta, both published by Elsevier — all cite issues related to duplications, and conclude with some version of the following:

Continue reading Author under fire has eight papers retracted, including seven from one journal

That study reporting worrisome levels of zinc in tuna? It’s being retracted

Recently, a rash of news outlets posted concerns that canned tuna and other products may contain potentially dangerous levels of zinc. They were all wrong.

News outlets such as The Daily Mail and The Sun reported findings from a recent study, which showed that canned foods such as tuna may contain 100 times the daily limit of zinc — raising concerns about how such huge doses of the mineral could be causing digestion problems. The last author of the study told Retraction Watch the paper is going to be retracted, because the authors made a fundamental error calculating the amount of zinc present in canned foods.

Last week, the UK’s biggest health website NHS Choices posted a critique of the paper, in which they recalculated the levels of zinc present in canned foods:

Continue reading That study reporting worrisome levels of zinc in tuna? It’s being retracted

Chemistry journal retracts highly criticized paper

A chemistry journal has retracted a nanoparticle paper following heavy outcry from readers, who alleged the paper contained signs of obvious manipulation.

After the paper appeared in 2017, one critic lamented it contained “obviously fabricated” images, and asked the journal to retract it. Another suggested the presence of one image merited “an instant lifetime ban.”

The first comment about the paper appeared on PubPeer three months ago; earlier this month, the journal ACS Biomaterials Science & Engineering retracted the paper.

Here’s the notice:

Continue reading Chemistry journal retracts highly criticized paper