Category: by subject

Fecal transplant paper pulled for “personal issue”

Last month, the Journal of Pediatric Gastroenterology and Nutrition pulled an article on fecal transplantation for a reason that, well, doesn’t pass the sniff test.

The paper, by Sonia Michail of Children’s Hospital Los Angeles, appeared online in October 2017 and described a randomized controlled trial of fecal transplants to treat kids with ulcerative colitis. (If you’re interested, here’s an overview of how fecal transplantation works.) The trial, or one awfully like it, is listed on ClinicalTrials.gov, and shows Michail as the lone investigator on the study, which is aiming to gather more than 100 participants.

But the journal retracted the article — which was the subject of a laudatory editorial in the journal pointing readers to the findings — with an entirely opaque statement, saying that the work   

Continue reading Fecal transplant paper pulled for “personal issue”

Journal holds firm on decision not to retract Macchiarini paper, despite outside pressure

Earlier this year, the president of the Karolinska Institute, Ole Petter Ottersen, contacted the journal Respiration, saying KI had conducted an investigation and determined that a 2015 paper co-authored by once-lauded surgeon Paolo Macchiarini had been tainted by misconduct. Please retract the paper, Ottersen said. When the journal said no — opting to publish correspondence from KI and the authors’ response instead — Ottersen posted some of their correspondence online, in an attempt to pressure the journal to do the right thing. It’s not going to work, according to Thomas H. Nold, publication manager at Karger, which publishes Respiration. We spoke to Nold about the journal’s plans for the paper.

Retraction Watch: How do you feel about KI’s decision to publish your correspondence?

Continue reading Journal holds firm on decision not to retract Macchiarini paper, despite outside pressure

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

Does the Mediterranean diet prevent heart attacks? NEJM retracts (and replaces) high-profile paper

The New England Journal of Medicine has retracted a 2013 paper that provided some proof that the Mediterranean diet can directly prevent heart attacks, stroke, and other cardiovascular problems.

The original paper, “Primary Prevention of Cardiovascular Disease with a Mediterranean Diet,” has been cited 1,759 times, according to Clarivate Analytics’ Web of Science.

But the findings haven’t disappeared — the authors have replaced the paper with a new version, which softens its earlier claims. Continue reading Does the Mediterranean diet prevent heart attacks? NEJM retracts (and replaces) high-profile paper

Journals flag two papers by prominent researcher — who is also on trial for domestic abuse

Adeel Safdar was once a rising star in the field of kinesiology. After completing his doctorate degree at McMaster University in Canada, working with one of the titans of his field, Safdar took a postdoc at Harvard, then accepted a newly created chair position at another university in Ontario.

That all came crashing down last year, when Safdar went on trial in Canada, accused of horrifically abusing his wife. Over the course of the trial, allegations arose about his research, prompting two journals to flag papers he co-authored with his former mentor, Mark Tarnopolsky.

Tarnopolsky — author of more than 400 papers, which have collectively been cited more than 17,000 times, according to Clarivate Analytics’ Web of Science — told Retraction Watch:

Continue reading Journals flag two papers by prominent researcher — who is also on trial for domestic abuse

Karolinska told a journal to retract a paper by Macchiarini. It refused. The story didn’t end there.

The president of the Karolinska Institutet (KI) is frustrated.

At the beginning of the year, Ole Petter Ottersen informed a journal that one of its papers — co-authored by former superstar Paolo Macchiarini — had been tainted by misconduct. But the journal declined to retract it.

Despite the fact that KI had conducted its own investigation into the integrity of the paper, the journal Respiration argued that it was “not in a position to make a judgement on whether or not to retract this article.” Instead, it proposed publishing KI’s argument for why the paper should be retracted, along with a rebuttal from the authors.

To Ottersen, this is just wrong. Yesterday, he posted some of his correspondence with the journal, which includes his request for retraction, the journal’s response, and his rebuttal. Ottersen’s blog post concludes:

Continue reading Karolinska told a journal to retract a paper by Macchiarini. It refused. The story didn’t end there.

Misconduct probe of once rising star prompts retraction of cat’s meow paper

A group of Australian researchers who studied the cat’s meow as a model for urinary incontinence and other motor-neural issues in people have lost a 2015 paper in the wake of a misconduct investigation.

The target of the inquiry was Hari Subramanian, a former senior research fellow at the Queensland Brain Institute, part of the University of Queensland (UQ). Subramanian was leading studies of incontinence in the elderly, for which he sometimes used nerve stimulators on live rodents and cats. As The Australian reported last September, animal rights activists have objected to his research methods — which sometimes involved sticking probes into the brains of living animals.  

Recently, the school launched an investigation — prompted by an unknown complainant — into the integrity of Subramanian’s data in two articles, including one, now retracted, that appeared in the Journal of Comparative Neurology.  

The case is controversial, to say the least, replete with allegations of unfair attacks. Subramanian’s lawyer told us the journal may be reviewing its decision to retract the paper. (We couldn’t confirm that with the editor.)

Here’s what we’ve found out so far.

Continue reading Misconduct probe of once rising star prompts retraction of cat’s meow paper

Famous Harvard economist reused parts of 2002 paper multiple times, says journal

Michael Jensen

A former Harvard economist and co-founder of a massive repository of free papers in social sciences has been accused of reusing similar material over multiple papers.

The three papers share the same title. According to an investigation by one of the journals, two papers by Michael Jensen, now an emeritus faculty member at Harvard, are “close-to-identical,” while another includes a “substantial amount of overlapping content.” None of the three papers cite the others.

The journal, Business Ethics Quarterly, has added an editorial notice to a 2002 paper by Jensen, noting its similarity to a 2001 paper and another 2001 paper. The notice states an earlier version of the paper was published by Harvard Business School Press. The editor surmises that all three journals were “more or less simultaneously vetting versions of the Jensen article.”

Jensen is the co-founder of the Social Science Research Network (SSRN), a repository of more than 800,000 papers that has been named the “Number 1 Open Access Repository in the World.” SSRN was purchased by Elsevier in 2016.

We spoke with Jensen briefly by phone; he denied submitting the same paper to three journals simultaneously:

Continue reading Famous Harvard economist reused parts of 2002 paper multiple times, says journal

How much cancer stems from diabetes, obesity? Lancet journal swaps high-profile paper

Six months ago, the media was ablaze with the findings of a new paper, showing that nearly six percent of cancer cases are caused, at least in part, by obesity and diabetes. But this week, the journal retracted that paper — and replaced it with a revised version.

The new paper doesn’t change the main findings much — the share of all cancers attributable to diabetes and obesity changed from 5.6% to 5.7%, which wouldn’t change any headlines about the original paper. But soon after the paper was published, a group of researchers noticed the authors’ mistake — which was significant enough to prompt the journal to retract the paper entirely, and swap it with a new one.

According to first author Jonathan Pearson-Stuttard at Imperial College London:

Continue reading How much cancer stems from diabetes, obesity? Lancet journal swaps high-profile paper

Dental journal pulls a dozen papers for recycled images and “unreliable data”

A leading orthodontics journal has retracted 12 papers after determining that they contained either reused images, questionable data or both. Several of the articles involved experiments conducted in dogs — and one person familiar with the case told us that the duplication was an attempt to avoid sacrificing more animals than necessary for the research.  

Although the list of authors on the articles varies, the common denominator is Jose Luis Calvo-Guirado, of the UCAM Universidad Católica San Antonio de Murcia, in Spain. Calvo-Guirado’s title at the institution is director de la Cátedra Internacional de Investigación en Odontología, which Google translates as director of the International Research Chair in Dentistry.  Calvo-Guirado also holds (or has held) a research professorship at SUNY Stony Brook in the Department of Prosthodontics and Digital Medicine, according to his CV.

Calvo-Guirado’s name is on at least 187 entries in PubMed. Of those, 40 appeared in Clinical Oral Implants Research, a Wiley title on whose editorial board the researcher served, according to his CV.  

Continue reading Dental journal pulls a dozen papers for recycled images and “unreliable data”