Paper about calculating ocean currents runs aground

The Naval Postgraduate School

A paper arguing that conventional methods of calculating ocean currents are flawed has been retracted because its own calculations ran aground. 

The article, “A Complete Formula of Ocean Surface Absolute Geostrophic Current,” was written by Peter Chu, of the Naval Ocean Analysis and Prediction Laboratory, part of the Naval Postgraduate School in Monterey. Chu is a distinguished professor and chair of the Department of Oceanography at the NPS, whose mission is to: 

Provide defense-focused graduate education, including classified studies and interdisciplinary research, to advance the operational effectiveness, technological leadership and warfighting advantage of the Naval service.

Chu’s paper, which appeared in Scientific Reports in January 2020, argued that:

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Meet the medical resident who had his wife peer review five of his papers

via Pixy

The pantheon of husband-wife teams in science includes Marie and Pierre Curie, Gerty and Carl Cori, even Ugur Sahin and Özlem Türeci, the founders of BioNTech, which collaborated with Pfizer on a Covid-19 vaccine. 

To that list we hesitatingly add Ahmed Elkhouly and his spouse. 

Elkhouly, a medical resident at St. Francis Medical Center, in Trenton, N.J., has lost five papers from the journal Cureus over a rather curious (ahem) domestic arrangement. According to the journal, Elkhouly used his unnamed wife as a peer reviewer on the articles, whose topics ranged from a case study on appendicitis to the neurological manifestations of COVID-19 infection

Here’s the retraction notice for the COVID paper — which, by the way, raises our tally of retracted papers on the pandemic to 89

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Authors retract Nature Majorana paper, apologize for “insufficient scientific rigour”

Leo Kouwenhoven, credit De Sebastiaan ter Burg

The authors of a Nature paper that could have meant a great leap forward for Microsoft’s computing power are retracting it today after other researchers flagged serious problems in the work.

The researchers, led by Leo Kouwenhoven, a physicist at Delft Technical University in the Netherlands who is also employed by Microsoft, published “Quantized Majorana conductance” on March 28, 2018. Along with work at other labs, the paper, which claimed to have found evidence for a long-elusive particle known as a Majorana fermion, prompted this quotation in a BBC story

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JAMA journal retracts, replaces paper linking nonionizing radiation to ADHD

via Wikimedia

A JAMA journal is retracting and replacing a 2020 paper which linked exposure to nonionizing radiation — think cellphones, Bluetooth devices and microwave ovens — during pregnancy to the risk for attention deficit disorder later in childhood after a reader pointed out a critical error in the study. 

The paper, “Association Between Maternal Exposure to Magnetic Field Nonionizing Radiation During Pregnancy and Risk of Attention-Deficit/Hyperactivity Disorder in Offspring in a Longitudinal Birth Cohort,” appeared in JAMA Network Open and prompted a significant amount of media coverage, as well as activity on social media.

According to the authors: 

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Exclusive: Ohio State researcher kept six-figure job for more than a year after a misconduct finding

Mingjun Zhang

In 2016, Mingjun Zhang, a biomedical engineering researcher at The Ohio State University, along with collaborators, published a paper that explored the mechanism behind ivy’s impressive adhesive strength. In it, the authors claimed to report the genetic sequences of the proteins making up the adhesive.

The paper, entitled “Nanospherical arabinogalactan proteins are a key component of the high-strength adhesive secreted by English ivy” appeared in PNAS on June 7 and attracted some media attention.

But shortly after publication, an anonymous whistleblower sent a letter to OSU and PNAS simultaneously: “The authors have knowlingly [sic], intentionally, repeatedly, and substantially misrepresented data in order to publish the manuscript.”

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The one that got away: Researchers retract fish genome paper after species mix-up

Arctic char, via Wikimedia

A group of researchers in Canada has retracted their 2018 paper on the gene sequence of the Arctic charr — a particularly hearty member of the Salmonidae family that includes salmon and trout — after discovering that the sample they’d used for their analysis was from a different kind of fish.

The paper, “The Arctic charr (Salvelinus alpinus) genome and transcriptome assembly,” appeared in PLOS ONE, and has been cited 29 times, according to Clarivate Analytics’ Web of Science. Per the abstract: 

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On COVID-19 PCR testing paper, “the criteria for a retraction of the article have not been fulfilled”

Two months after announcing it would review an early 2020 paper on a way to detect the virus that causes COVID-19, a journal says that “the criteria for a retraction of the article have not been fulfilled.”

The review of the paper, “Detection of 2019 novel coronavirus (2019-nCoV) by real-time RT-PCR, by the journal, Eurosurveillance, was prompted by critiques including a petition by some 20 people around the world for what they called “scientific and methodological blemishes.” The senior author of the Eurosurveillance paper, Christian Drosten, of the Charité University Hospital in Berlin, has been a leader in the fight against the pandemic, but has also predictably drawn criticism from those who oppose lockdowns.

On December 3, the journal issued a statement saying they were reviewing the allegations, which, as editors note in their statement dated yesterday

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‘Immortal time bias’ fells JAMA journal asthma paper

via Lévesque et al, BMJ

One of the many fun things about reporting on retractions is that we get to expand our statistical knowledge. To wit, follow along as we explore the concept of immortal time bias.

A JAMA journal has retracted and replaced a paper by authors at the University of Massachusetts after another researcher identified a critical statistical error in their study. 

The paper, “Association of Antibiotic Treatment With Outcomes in Patients Hospitalized for an Asthma Exacerbation Treated With Systemic Corticosteroids,” was written by a group led by Mihaela Stefan, the associate director of the Institute for Healthcare Delivery and Population Science at UMass, and appeared in JAMA Internal Medicine in 2019. 

The study purported to find that:*

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NIH researcher responds as sleuths scrutinize high-profile study of ultra-processed foods and weight gain

via Hall et al, Cell Metabolism

[This post has been updated since publication; see update note at end for details.]

In July 2019, Kevin Hall, of the U.S. National Institutes of Health, and colleagues published a study in Cell Metabolism that found, according to its title, that “Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain.” 

A year and a half after its publication, the paper is the subject of two critical blog posts, one by Nick Brown and one by Ethan and Sarah Ludwin-Peery. In the days since we first shared embargoed drafts of those posts with Hall, he and the sleuths engaged in a back and forth, and Brown and the Ludwin-Peerys now say they are satisfied that many of the major issues appear to have been resolved. They have also made changes to their posts, including adding responses from Hall.

In short, it seems like a great example of public post-publication peer review in action. For example, the Ludwin-Peerys write:

When we took a close look at these data, we originally found a number of patterns that we were unable to explain. Having communicated with the authors, we now think that while there are some strange choices in their analysis, most of these patterns can be explained…

In a draft of their post shared with us early last week — see “a note to readers” below — the Ludwin-Peerys said that some of the data in the study “really bothered” them. In particular, they write, the two groups of people studied — 20 received ultra-processed foods, while 20 were given an unprocessed diet — “report the same amount of change in body weight, the only difference being that one group gained weight and the other group lost it.” They were also surprised by the “pretty huge” correlation between weight changes and energy intake.

Brown’s draft post, which digs into the data, concludes:

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“There can be no justification for such studies”: Paper on artificial eyes for dogs earns expression of concern

A journal has issued an expression of concern for a 2020 paper by researchers in Korea who have used 3-D printing to create artificial eyes for dogs.

The study triggered a slew of critical comments from readers, who were outraged by the ethics of the research and what they saw as inadequate protections for the animals against pain.

The paper is titled “Custom-made artificial eyes using 3D printing for dogs: A preliminary study,” and the senior author is Kyung-Mee Park, of Chungbuk National University. According to the abstract: 

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