“Lack of experience and understanding” forces duplication retractions of liver cancer paper

A group of researchers in China has lost their paper on liver cancer after the first author admitted to duplication, also known, inelegantly, as self-plagiarism. The paper, “Glycyrrhetinic acid-modified chitosan nanoparticles enhanced the effect of 5-fluorouracil in murine liver cancer model via regulatory T-cells,” appeared in the July 2013 issue of the Journal of Drug … Continue reading “Lack of experience and understanding” forces duplication retractions of liver cancer paper

Group’s duplication retractions span the globe, from New Zealand to Romania to Croatia

The retraction count continues to grow for a group of Iranian scientists who appear to have published similar work four times. The group was forced to retract a Journal of Gastrointestinal and Liver Diseases paper in March. That retraction came alongside one in the New Zealand Journal of Medical Laboratory Science, whose editor had tipped … Continue reading Group’s duplication retractions span the globe, from New Zealand to Romania to Croatia

Group in China earns nearly a dozen retractions for image duplication, forged authorship, and more

A group of materials scientists in China has earned 11 retractions and three corrections — so far — for image manipulation, duplication, deceptive authorship and other misconduct. The papers, from a group at the prestigious Tsinghua University, appeared in a variety of materials journals and date back to 2014. The most recent publications arrived in … Continue reading Group in China earns nearly a dozen retractions for image duplication, forged authorship, and more

Five retractions for engineering duo in South Korea over duplication, fraudulent data

An engineering student in South Korea and a professor have retracted five papers from four different journals for reasons ranging from figure duplication to manipulated or fraudulent data. Jae Hyo Park, who is pursuing his PhD, and Seung Ki Joo, a professor in the department of material science and engineering at Seoul National University in South … Continue reading Five retractions for engineering duo in South Korea over duplication, fraudulent data

Researcher logs three retractions for image duplications — two of which with familiar co-authors

A researcher in Brazil is taking responsibility for accidentally mixing up images in three papers in the Journal of Biological Chemistry.  The corresponding author on the three papers told us the mistake happened because the studies were conducted simultaneously, and relied on one computer. There’s a side note to these retractions: The co-author list on … Continue reading Researcher logs three retractions for image duplications — two of which with familiar co-authors

Heart attack: Two cardiology retractions, plus a notice of duplication, in three different journals

We’ve come across three notices in cardiology journals this week, so although they’re unrelated, we’re gathering them here. Item 1, from Circulation Research:

Duplication forces retractions of two 15-year-old entomology papers

A Brazilian entomologist, Claudio Jose von Zuben, has been forced to retract two papers from 1997 after editors became aware that he and his colleagues had used the same figure in both. First, the notice from Memórias do Instituto Oswaldo Cruz:

Gastro journal continues tough stance on duplication, with two new retractions

Monica Acalovschi is serious about ridding the literature of duplicate publications. That would seem to be the message of two new retraction notices in the Journal of Gastrointestinal and Liver Diseases, which Acalovschi edits — two retractions that join another for similar reasons, which we covered earlier this year. Here are the notices, from the … Continue reading Gastro journal continues tough stance on duplication, with two new retractions

Retractions we haven’t had a chance to cover, part 3: Another duplication and plagiarism edition

As more and more journals enroll in CrossCheck, designed to ferret out cases of plagiarism, it’s to be expected that the number of papers retracted for copying and pasting will increase. Sometimes, that plagiarism is actually duplication of material that the same authors have published elsewhere, while other times it’s good old-fashioned plagiarism of someone … Continue reading Retractions we haven’t had a chance to cover, part 3: Another duplication and plagiarism edition

Retractions we haven’t had a chance to cover, part 2: Duplication and plagiarism edition

Last week, we started a new series at Retraction Watch, “Retractions we haven’t had a chance to cover.” The first edition had sort of an environmental theme. This one has a duplication and self-plagiarism theme. But it’s not always the authors’ fault, as you’ll learn.