Archive for the ‘brazil’ Category
The retraction is part of a large initiative on the part of nutrition researcher David Allison and colleagues to clean up the literature, which we’ve previously covered. Regarding this paper, he told us:
When we looked at the study…it was very clear that the statistical methods used were not correct. These are not matters of debate or opinion, these are just…verifiably incorrect.
The Nutrition Journal published the paper in January 2015, and retracted it in June 2016, one day after publishing a letter by Allison and a colleague critiquing the paper.
A diabetes researcher who sued to stop a publisher from retracting his papers has just received his seventh retraction.
The latest retraction for Mario Saad, who is based at the University of Campinas (Unicamp) in São Paulo, Brazil, is for a PLOS ONE paper (which was altered last year by a mega-correction). Although an institutional investigation found no evidence of research misconduct, the notice states:
the preparation of the figures falls below the standard of publication and therefore the authors and the editors have agreed that the correct action is to retract the article.
Saad previously sued the American Diabetes Association (ADA) to remove expressions of concern from four of his papers published in the organisation’s flagship journal, Diabetes. However, all four of the papers were later retracted after the suit was dismissed in 2015.
A sixth retraction has appeared for a diabetes researcher who previously sued a publisher to try to stop his papers from being retracted.
Mario Saad‘s latest retraction, in PLOS Biology, stems from inadvertent duplications, according to the authors. Though an investigation at Saad’s institution — the University of Campinas in Brazil — found no evidence of misconduct, a critic of the paper told The Scientist he does not believe that the issues with blots were inadvertent.
Previously, Saad sued the American Diabetes Association to remove four expressions of concern from his papers; they were later retracted, even though Unicamp recommended keeping three of them published.
A journal has added expressions of concern (EOCs) to four papers about diabetes, including one co-authored by an author who previously sued a different journal when it took a similar action on his papers.
The Journal of Physiology flagged the papers after an investigation “could not rule out the possibility” that they contained duplicated Western blots. Though the three other papers do not include Mario Saad on their author list, he plays a role: The papers include blots duplicated from other papers of Saad’s. And they reveal that Saad may have published those blots multiple times in his own work.
The EOCs all start out with the same statement: Read the rest of this entry »
Four expressions of concern in the journal Diabetes have turned into retractions for Mario Saad, a move which he had tried to stop with a lawsuit.
Last August, a judge dismissed Saad’s suit against the American Diabetes Association, which publishes Diabetes, concluding that the expressions of concerns on the papers were not defamation, but part of an “ongoing scientific discourse.” Now, after an investigation at the University of Campinas in Brazil, where Saad is based, and an assessment from an ADA ethics panel (which overturned some of Unicamp’s recommendations), the journal has added to that discourse by turning the EOCs into retractions — and flagging two more of Saad’s papers with EOCs.
Together, the retracted papers have been cited more than 600 times.
As the retraction notes explain, Read the rest of this entry »
In Latin America, retractions for plagiarism and other issues have increased markedly — which may be a positive sign that editors and authors are paying closer attention to publishing ethics, according to a small study published in Science and Engineering Ethics.
The authors examined two major Latin American/Caribbean databases, which mostly include journals from Brazil, and have been indexing articles for more than 15 years. They found only 31 retractions, all of which appeared in 2008 or later. (Roughly half of the retractions were from journals indexed in the Thomas Reuters’ Journal of Citations Report® (JCR).)
This was a notable result, the authors write: Read the rest of this entry »
An article about the use of vaccines against pertussis — also known as whooping cough — didn’t include the fact that the author has received grants and consultancy fees from three pharmaceutical companies that help make or sell the vaccines.
The correction to “Pertussis in young infants: a severe vaccine-preventable disease,” published in Autopsy and Case Reports just a few months after the paper, cites a “desktop publishing error” that led to the following problems: Read the rest of this entry »
In the original paper, the authors claimed that three out of eight patients who underwent a procedure that used gamma rays to kill brain cells showed improvements 12 months later (versus zero in the group who underwent a “sham” procedure). But after a reader noticed an “inadvertent” error in the calculation of how many patients had improved, the authors realized that only two of the patients had responded meaningfully to the procedure.
The new results “did not reach statistical significance,” the authors write in a “Notice of Retraction and Replacement.” JAMA Psychiatry published it yesterday, along with a new version of the article, a letter from psychiatrist Christopher Baethge pointing out the error, and an editorial. The original article is available in the supplemental material of the new version, with the errors highlighted.
Here’s the note in full for “Gamma ventral capsulotomy for obsessive-compulsive disorder: a randomized clinical trial,” which explains the error:
Countries that publish less science appear to “borrow” more language from others than other, more scientifically prolific countries, according to a new small study.
Using a novel approach of comparing a country’s total citations against its total published papers (CPP), the authors categorized 80 retractions from journals in general and internal medicine. This is a relatively small number of retractions from one specific field of research; still, they found that:
Thus, retractions due to plagiarism/duplication were 3.4 times more likely among low-CPP countries than among high-CPP countries.
The CPP authors’ suggested interpretation? Read the rest of this entry »
Mario Saad can’t catch a break — yesterday, a Massachusetts judge dismissed his defamation suit against the American Diabetes Association, publisher of Diabetes, which published an expression of concern regarding four of his papers in March.
The researcher has tried — and failed — to use the courts to remove the EoC.
In Saad’s latest attempt to employ legal action against the journal — arguing the EoC was defamatory — the United States District court of Massachusetts was clear in its ruling (which you can view in its entirety here):