Category: japan retractions

A microbiologist formerly of Osaka University has lost four papers, with at least one more retraction pending, after an institutional investigation found fabrication and falsification of data in his published research. 

The investigation found evidence of manipulated results in seven of the papers examined. The university published the notice of its completed inquiry, along with a full report in Japanese, on February 6. 

The report did not name the scientists or cite the articles investigated, but it did include a figure or table with altered data from each paper. Three papers retracted in February mentioned an investigation by Osaka University in the notices; Yukihiro Hiramatsu was the first author on all three. Comparing the figures in the report with ones in Hiramatsu’s publications, we identified the seven articles. (See the list here.) 

Continue reading Osaka misconduct investigation leads to four retractions, with more likely

A nanotube researcher in Japan has earned 13 retractions, with more to come, after an extensive investigation by the country’s National Institute of Advanced Industrial Science and Technology (AIST) revealed widespread misconduct in his work. 

AIST’s investigation found Naohiro Kameta, senior principal researcher at the Nanomaterials Research Institute located in AIST’s Ibaraki campus, fabricated and falsified dozens of studies. He was apparently dismissed from his role following the findings. 

The institute first learned of the problems in Kameta’s work in November 2022, according to a translated version of the investigation report. Initially, they looked into five papers, but eventually expanded their scrutiny to 61 articles on which Kameta was the lead or responsible author.

Continue reading Retractions begin for chemist found to have faked data in 42 papers

An official journal of the Japanese government has retracted a 2021 paper over concerns about misconduct in the work, which was performed in a national research center. 

Here’s the retraction notice for the paper, titled “Development and Evaluation of Fluorescence Immunochomatography for Rapid and Sensitive Detection of Thermophilic Campylobacter”: 

Food Safety decided to retract this article in which the primary author misconducted as reported from the primary author’s affiliation.

Far more details are available in materials published last December by Japan’s National Institute of Health Sciences, where the first author of the article, Hiroshi Asakura, is chief researcher. According to a press release dated Dec. 26, 2023: 

Continue reading Chief researcher at national Japanese institute has paper retracted for faking data

The president of Aizu University in Japan has resigned after two investigations found he had self-plagiarized or double-submitted a dozen papers.

Toshiaki Miyazaki was also found to have “filed an application for a project subsidized by the national government without going through the university official procedures,” which “caused confusion,” according to Aizu. He resigned effective today [July 31].

The move comes more than a year after the first investigation, as we reported, which concluded in February 2022 and found that Miyazaki had self-plagiarized four papers. At that time, he had to forfeit 20% of one month’s salary. 

A month later, according to a report issued last week by the university, Miyazaki “self-reported that there were 12 papers suspected of self-plagiarism.” A preliminary investigation then began, with a full investigation starting in April and lasting until February of this year.

Continue reading President of Japanese university resigns after findings of ‘self-plagiarism’

Tokyo’s Waseda University is investigating alleged misconduct by an assistant professor at the institution, Retraction Watch has learned.

The probe is focusing on at least three works by Woohyang Sim, of the Faculty of International Research and Education, including her 2020 doctoral dissertation, titled “What is Higher Education For? Educational Aspirations and Career Prospects of Women in the Arab Gulf.” Two of Sim’s published papers are also under scrutiny, according to a source familiar with the investigation. 

In June 2022, an anonymous commenter on PubPeer flagged several problems with these publications, as well as with Sim’s master’s thesis and another one of her papers. That same month, a whistleblower notified the Japanese government about the concerns, according to the source.

Continue reading Exclusive: Top-tier university in Japan investigating prof’s alleged misconduct

A university in Japan has revoked the doctoral degree of a former student found to have manipulated images and graphs in a dissertation and two published papers.

“Although our university has been working to raise awareness of research ethics in order to prevent research misconduct, it is extremely regrettable that such a situation has occurred,” Tohoku University President Hideo Ohno said in an announcement made on March 30 (translated from the Japanese using Google Translate).

The school did not name the former student, who was first author on both papers. But details mentioned in its investigation report (in Japanese) point to a researcher called Nan Li. Li was also named on a blog in Japan that covered the case (in Japanese). 

Continue reading Researcher loses PhD after admitting to fudging images

A professor of cell biology in Japan faked data in an influential cancer study published in Nature Neuroscience in 2019, according to an investigation by Okayama University. 

The school, which released a report with its findings last month (in Japanese), found no fewer than 113 instances of fabrication as well as problems with several images in the paper, titled “Genetic manipulation of autonomic nerve fiber innervation and activity and its effect on breast cancer progression.”

The report identified Okayama’s Atsunori Kamiya as being involved in the misconduct and recommended retracting the article, which has been cited 134 times, according to Clarivate’s Web of Science. The paper has yet to be retracted, but an editor from the journal said they are looking into the case. 

Continue reading Earthquake destroyed data, claims Japanese prof found to have faked results

An oral surgeon in Japan falsified images in several papers, granted authorship to whomever he saw fit and stored experimental data sloppily, according to an investigation by Showa University in Tokyo, where the physician was a lecturer at the time of the misconduct. 

As a result of the findings, the university has recommended retracting eight papers by the surgeon, Masayasu Iwase, according to a translation commissioned by Retraction Watch of a December report from the committee that investigated the case. 

The university also is discussing revoking the graduate degrees of two of Iwase’s former students whose dissertations were based on the “fraudulent” papers, the report explains.

Tadashi Hisamitsu, Showa’s president, wrote on the university’s website:

Continue reading Japanese university asks surgeon to retract eight ‘fraudulent’ papers

Kyoto University is recommending retraction for five papers by a former botany researcher there after an institutional inquiry turned up evidence of fraud. 

The investigation of Lianwei Peng, who left the school in May 2011, found 11 images had been manipulated in the papers, according to a press release. The corresponding author on all five papers, Toshiharu Shikanai, may face disciplinary action, the university’s statement said. 

Shikanai’s faculty page at Kyoto University, shown here in an archived snapshot from November 2020, now bears a message that “the requested page cannot be found.”

Continue reading Japanese university recommends five retractions after investigating botany researcher