Archive for the ‘brazil’ Category
Earlier this year, we brought you the case of a group of Brazilian insect researchers who lost two 15-year-old papers in different journals for duplication. One of those papers has been resurrected, albeit in a rather puzzling way.
The article, “Non-local interactions and the dynamics of dispersal in immature insects,” had appeared in the Journal of Theoretical Biology, which had issued the following retraction notice:
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The Brazilian medical journal Clinics — edited by the Faculdade de Medicina of the University of São Paulo — has lost two more papers in a citation stacking scheme that cost one of the authors his job as editor of the publication.
The first paper, by former editor Mauricio Rocha-e-Silva and Ariane Gomes, was titled “An overview of recently published medical papers in Brazilian scientific journals,” and was published in 2011. As the retraction notice states: Read the rest of this entry »
Last December, we brought you the story of a math paper that was retracted because it made “no sense mathematically.” Today, we have that retraction’s cousin: A physics paper retracted because some of the data are “unphysical.”
Here’s the notice for “Room temperature ferromagnetism in pure and Co- and Fe-doped CeO2 dilute magnetic oxide: effect of oxygen vacancies and cation valence,” which was published in April 2011 in the Journal of Physics D: Applied Physics: Read the rest of this entry »
The University of São Paulo and Brazil’s National Council of Technological and Scientific Development funding agency (CNPq) have cleared a researcher of fraud following a six-month investigation.
The CNPq’s Commission on Integrity in Scientific Activity noted, however, that “there was failure to exercise rigor in the conduct and dissemination of results [in Rui Curi's work], essential to quality research.” Read the rest of this entry »
The fourth correction for Rui Curi — and we’d call it a mega-correction — is of a paper in PLOS ONE. Curi is the fourth out of 11 authors; someone named Tania Pithon-Curi is the final author:
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The two articles appeared in the Journal of Orthodontics and the Journal of Oral and Maxillofacial Surgery about four months apart.
The first, from the JOMS, “Selective Use of Hand and Forearm Muscles During Bone Screw Insertion: A Natural Torque Meter,” was published online Aug. 30 — just about the time the Journal of Orthodontics was accepting the duplicate submission.
Rui Curi — the Brazilian scientist who threatened to sue the now-shuttered Science-Fraud.org site for criticizing his work — has rung up his second retraction, this one for a paper that he corrected earlier this year.
Here’s the Journal of Endocrinology notice, whose headers and language are a bit confusing, understandably, because it is retracting two things, a correction and the original paper: Read the rest of this entry »
Back in January, we wrote about the retraction of a paper in the International Journal of Radiation Oncology *Biology* Physics, the first from that journal in its 38-year history.
At the time, the journal’s new editor, Anthony Zietman, of Mass General, told us that he was working on a second retraction. That one has arrived.
The paper, “High-Dose Conformal Radiotherapy Reduces Prostate Cancer–Specific Mortality: Results of a Meta-analysis,” came from a team of radiation oncologists in Brazil, and was published last August.
According to the retraction notice:
The Journal of Endocrinology has run a correction for a paper by Rui Curi, the Brazilian scientist whose lawyers threatened Science-Fraud.org after the site ran a number of posts critical of Curi’s work.
Here’s the correction for “Effects of moderate electrical stimulation on reactive species production by primary rat skeletal muscle cells: Cross-talk between superoxide and nitric oxide production,” in the Journal of Cellular Physiology: Read the rest of this entry »