Category: image manipulation

Forensics Friday: Can you spot the problem with this image?

Ever wanted to hone your skills as a scientific sleuth? Now’s your chance.

Thanks to the American Society for Biochemistry and Molecular Biology (ASBMB), which is committed to educating authors on best practices in publishing, figure preparation, and reproducibility, we’re presenting the first of a new series, Forensics Friday.

Take a look at the image below, and then take our poll. After that, click on the link below to find out the right answer.

Continue reading Forensics Friday: Can you spot the problem with this image?

Meet Elisabeth Bik, who finds problematic images in scientific papers for free

Courtesy Elisabeth Bik

Retraction Watch readers may know the name Elisabeth Bik, whose painstaking work inspecting tens of thousands of Western blot images has led to dozens of retractions in journals including PLOS ONE. Today in The Scientist, we profile Bik, a microbiologist who calls herself a “super-introvert.”

Bik tells us:

Continue reading Meet Elisabeth Bik, who finds problematic images in scientific papers for free

Pair of nanotech researchers up to at least two dozen retractions

A pair of researchers at the Indian Institute of Technology (Indian School of Mines) has had a total of nine more papers retracted, pushing their totals to 24 and 26, respectively.

The totals put the two researchers — Rashmi Madhuri, with 24 retractions, and Prashant Sharma, with 26 — on our leaderboard of the 30 authors with the most retractions in the world.

Three of the retractions appeared in RSC Advances, two appeared in Journal of Materials Chemistry B, and one each appeared in Journal of Materials Chemistry A, Journal of Materials Chemistry C, Biomaterials Science, and CrystEngComm.

For example, here is the retraction notice from Journal of Materials Chemistry C: Continue reading Pair of nanotech researchers up to at least two dozen retractions

Dental researcher in Spain up to 18 retractions

Jose Luis Calvo-Guirado

A researcher in Spain who studies dental implants has had another six papers retracted, for a total of 18.

José Luis Calvo-Guirado‘s latest retraction, which along with the other 17 appeared in Clinical Oral Implants Research, a Wiley title, was for “image discrepancies resulting in unreliable data.” Three appeared in June, and two in July, also for image issues. The researcher also has at least two corrections; one  in Annals of Anatomy — Anatomischer Anzeiger and one in Materials. Continue reading Dental researcher in Spain up to 18 retractions

University of Kentucky cancer toxicologist retracts three papers for image duplication

Xianglin Shi

A researcher at the University of Kentucky who studies the cancer risks of toxic chemicals has retracted three papers.

All of the retraction notices, which appear in the Journal of Biological Chemistry, refer to some kind of image duplication. The papers were originally published between 2014 and 2017, with the 2014 paper cited 39 times, according to Clarivate Analytics’ Web of Science.

Continue reading University of Kentucky cancer toxicologist retracts three papers for image duplication

Researcher who once tried to sue critics has another dozen papers retracted

Fazlul Sarkar

A cancer researcher who went to court — unsuccessfully — claiming that commenters on PubPeer had cost him a new job has just lost another 12 papers.

The twelve now-retracted papers by Fazlul Sarkar and colleagues — as well as another by Sarkar that is now subject to an editor’s note — all appeared in Cancer Research, which made for a long table of contents in its September 15 issue. Continue reading Researcher who once tried to sue critics has another dozen papers retracted

Cancer journals retract 10 papers, flag 8 more, and apologize for the delay

Bharat Aggarwal

Five journals published by a prominent cancer research society have retracted a total of 10 papers — most of them by a former researcher at the MD Anderson Cancer Center in Houston.

Nine of the 10 retractions share that researcher, Bharat Aggarwal, as an author. Aggarwal — who more than five years ago threatened to sue us for reporting on an investigation into his work — is now up to 28 retractions, and has left his post at MD Anderson. The AACR is also appending an editor’s note to eight of his other papers — but it has not explained the reason for what it acknowledges is a lag in moving on these articles.

“Unfortunately, we have been delayed in correcting the published record, and for this we apologize,” writes the publisher of The American Association for Cancer Research (AACR), Christine Rullo, in a note in this month’s issue of Cancer Research. Rullo doesn’t say how long the journals took to handle the retractions. Continue reading Cancer journals retract 10 papers, flag 8 more, and apologize for the delay

After probe, journal removes flag from four papers, corrects manipulated images

Last year, Journal of Cell Science added notices to four papers after a reader contacted the editors with some concerns about issues with the figures. Now, it’s replacing the previous editorial notices with corrections, which address duplicated images and data.

When the journal issued expressions of concern for four papers co-authored by José Ignacio Rodriguez-Crespo about the allegations (which had also been raised on PubPeer), it notified his institution, the Universidad Complutense de Madrid (UCM). The newly issued correction notices explain that UCM investigated the four papers, and the data support the results and conclusions. In two cases, the authors supplied the original data, and in the others, they replicated the experiments.

Rodriguez-Crespo declined to comment, saying only that the journal

Continue reading After probe, journal removes flag from four papers, corrects manipulated images

35,000 papers may need to be retracted for image doctoring, says new paper

Elisabeth Bik

Yes, you read that headline right.

In a new preprint posted to bioRxiv, image sleuths scanned hundreds of papers published over a seven-year period in Molecular and Cellular Biology (MCB), published by the American Society for Microbiology (ASM). The researchers — Arturo Casadevall of Johns Hopkins University, Elisabeth Bik of uBiome, Ferric Fang of the University of Washington (also on the board of directors of our parent non-profit organization), Roger Davis of the University of Massachusetts (and former MCB editor), and Amy Kullas, ASM’s publication ethics manager — found 59 potentially problematic papers, of which five were retracted. Extrapolating from these findings and those of another paper that scanned duplication rates, the researchers propose that tens of thousands of papers might need to be purged from the literature. That 35,000 figure is double the amount of retractions we’ve tallied so far in our database, which goes back to the 1970s. We spoke with the authors about their findings — and how to prevent bad images from getting published in the first place.

Retraction Watch: You found 59 potential instances of inappropriate duplication — how did you define this, and validate that the images were problematic?

Continue reading 35,000 papers may need to be retracted for image doctoring, says new 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”