Category: mdpi

More evidence scientists continue to cite retracted papers

Screen Shot 2015-02-17 at 2.38.46 PMA new paper in the MDPI journal Publications reports that the only controlled study on the effect of giving COPD patients Omega-3 has been cited 52 times since being retracted. Of those, only two mentioned the retraction.

In 2005, Chest published an article that found that COPD patients who took omega-3 supplements for 2 years experienced improvements in their condition, such as better walking tests and a decrease in sputum cytokines. But when an institutional investigation found the lead author had falsified the data, the journal retracted the paper in 2008.

That’s news to many researchers in the field. Among the 50 papers that cited the research after 2008 without stating it had been retracted, 20 included “specific data” from the paper, while the other 30 “cited the reference in passing.” Articles citing the retracted study have themselves been cited 947 times total, pointing to the ripple effect this kind of unwitting mention can have throughout the literature.

Continue reading More evidence scientists continue to cite retracted papers

A tale of two notices as Tunisian chemists lose two papers for duplicated data

molecules-logoMolecules has pulled a 2010 article by a trio of chemists from Tunisia who tried — and succeeded, for a while, at least — to publish the same data twice. The article was titled “An Expeditious Synthesis of [1,2]Isoxazolidin-5-ones and [1,2]Oxazin-6-ones from Functional Allyl Bromide Derivatives.” And indeed it was expeditious. Here’s the notice: Continue reading A tale of two notices as Tunisian chemists lose two papers for duplicated data

Late resveratrol researcher Dipak Das up to 20 retractions

Das, via UConn
Das, via UConn

Dipak Das, the former University of Connecticut researcher found to have committed more than 100 counts of misconduct, and who passed away last year, has had another retraction appear.

Here’s the notice, for “Dynamic Action of Carotenoids in Cardioprotection and Maintenance of Cardiac Health,” from Molecules:

Continue reading Late resveratrol researcher Dipak Das up to 20 retractions

Nine-year-old plagiarism allegation leads to retraction of math paper

entropyIt is often said that science is self-correcting, but it is usually more accurate to add “in the long run” to that statement.

Take, for example, this retraction of a 10-year-old paper in Entropy that had been questioned since 2005. Here’s the notice for “Statistical Convergent Topological Sequence Entropy Maps of the Circle:”

The editors were made aware that a paper published in Entropy in 2004 [1] may have plagiarized an earlier paper by Roman Hric published in 2000 [2]. After checking with specialized plagiarism software, we found that this claim is indeed correct and almost the entire paper is a verbatim copy of the earlier one. After confirmation of this fact, the editors of Entropy have decided to retract the paper immediately.

We would like to apologize to the readers of the journal that it took so many years to notice this error and to retract the paper. Apparently there is a comment on MathSciNet (http://www.ams.org/mathscinet/) since 2005 that points out this case of possible plagiarism [3], however the editorial office was not aware of this until recently. We request readers of the journal to directly get in touch with the editorial office and the editors of the journal for similar cases in the future, so that they can be handled promptly.

References

1. Aydin, B. Statistical Convergent Topological Sequence Entropy Maps of the Circle. Entropy 2004, 6, 257–261.
2. Hric, R. Topological sequence entropy for maps of the circle. Comment. Math. Univ. Carolin. 2000, 41, 53–59.
3. MathSciNet, MR2082710 (2005f:37075), http://www.ams.org/mathscinet getitem?mr=2082710

The paper has yet to be cited, according to Thomson Scientific’s Web of Knowledge.

Hat tip: William T.A. Harrison

A rating system for retractions? How various journals stack up

publications-logoHere at Retraction Watch, we judge retraction notices every day. We even have a category called “unhelpful retraction notices.”

But we haven’t systematically analyzed those notices, so lucky for us, a group of academics at Vanderbilt decided to. In a new paper published in a special issue of Publications — an issue whose editor, Grant Steen, put out a call for papers for here on Retraction Watch — Emma Bilbrey, Natalie O’Dell, and Jonathan Creamer explain: Continue reading A rating system for retractions? How various journals stack up

Simulation slip-up leads to retraction of explosives paper

applsci-logoApplied Sciences has retracted a 2012 article by a researcher whose efforts to model a particular kind of explosion called a shaped charge proved to be a dud.

The paper, “Steady State Analytical Equation of Motion of Linear Shaped Charges Jet Based on the Modification of Birkhoff Theory,” was written by Seokbin Lim, a mechanical engineer in the Energetic Systems Research Group at  New Mexico Tech, in Socorro.

According to the abstract:  Continue reading Simulation slip-up leads to retraction of explosives paper

Your bad: Journal yanks paper for plagiarism and duplication, and points fingers

molecules-logoHere’s a warning to would-be plagiarizers: Don’t submit to the journal Molecules unless you have no problem being called out by name when you’re busted.

Consider: The journal is retracting a paper it published earlier this year after learning that the article contained verbatim text — and lots of it — from previously published papers.

The article, “Cytotoxicity and Anti-Inflammatory Activity of ethylsulfanyltriazoloquinazolin,” was written by a group that included Amira M. Gamal-Eldeen, of the National Research Center in Cairo, Egypt. Why single out Dr. Gamal-Eldeen, you ask? Read for yourself: Continue reading Your bad: Journal yanks paper for plagiarism and duplication, and points fingers

Journal to feature special issue on scientific misconduct, seeks submissions

steen
Grant Steen

It would be difficult to read the recent scientific literature on retractions and miss Grant Steen’s contributions. Retraction Watch readers are no doubt familiar with his work by this point, and if they’re not, we’d recommend spending some time with it. The journal Publications — an MDPI title — has asked him to guest-edit a special issue on scientific misconduct, and Steen asked us to get the word out, so we’re happy to post this introduction from him: Continue reading Journal to feature special issue on scientific misconduct, seeks submissions

Pesticide paper retracted for “major errors”

foods-logoThe authors of a 2013 paper in the journal Foods which sounded alarms about the concentrations of pesticides in vegetables and other commercial crops have pulled the article, citing an insurmountable mistake.  To wit: the levels of pesticides they reported were, in fact, not what the data really showed.

The article, titled “Health risk assessment of pesticide residues via dietary intake of market vegetables from Dhaka, Bangladesh,” came from a group from that country and Australia.  Continue reading Pesticide paper retracted for “major errors”

Mislabeled chemical bottle leads to retraction of liver protection paper

molecules-logoA labeled chemical bottle may contain a genie and not the expected reagent, according to a cautionary retraction that could be a warning for all bench researchers.

Sreenivasan Sasidharan, a researcher at the Institute for Research in Molecular Medicine (INFORMM), part of the Universiti Sains Malaysia, used a bottle labeled lantadene A, a liver-destroying chemical from the leaves of the Lantana camara plant that some livestock eat.

Sasidharan found that contrary to expectations, “lantadene A” protected livers against damage from acetaminophen — aka Tylenol.

But Manu Sharma, assistant pharmacy professor at Jaypee University of Information Technology in India, suspected something was technically amiss: Continue reading Mislabeled chemical bottle leads to retraction of liver protection paper