Category: by paywall status

So, pot may not be as harmless as a recent study suggested

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Researchers are correcting a widely covered study that suggested chronic use of pot might not put users at risk of problems later in life.

It turns out that initial, unexpected finding — covered by Newsweek, The Washington Post, Quartz, and (of course) The Stoner’s Cookbook (now known as HERB) — wasn’t quite right, and a reanalysis found users had a small uptick in risk for psychosis. The authors have issued a lengthy correction in Psychology of Addictive Behaviors that includes some supplemental analysis, too.

Not surprisingly, the study’s findings engendered some controversy, which prompted the authors to reanalyze their data, collected from 408 males with varying levels of marijuana use, who were followed from their teens into their 30s.

Now, an American Psychological Association press release that accompanied the initial findings in August contains an editors note explaining why those aren’t quite correct:

Continue reading So, pot may not be as harmless as a recent study suggested

Lawsuit against Ole Miss for rescinded Sarkar job offer dismissed; briefs filed in PubPeer case

court caseWe recently obtained court documents showing that, in September, a judge dismissed a lawsuit filed by cancer researcher Fazlul Sarkar against the University of Mississippi after it rescinded a job offer after reviewing concerns raised about his research on PubPeer.

Sarkar’s connection to PubPeer will be familiar to many readers — he has also taken the site to court to force them to reveal the identity of the anonymous commenters who have questioned his findings. He has accused the commenters of defamation, arguing they cost him the job offer. Today, the American Civil Liberties Union filed a brief on behalf of PubPeer’s appeal of the court’s most recent ruling, that the site must disclose the identity of an anonymous commenter. At the same time, some heavy hitters in science – Bruce Alberts and Harold Varmus — and technology — Google and Twitter — filed briefs in support of the appeal.

The lawsuit against Ole Miss has brought to light the reasoning behind the school’s decision to rescind their offer to Sarkar — and the key role played by the concerns raised on PubPeer.

In a letter dated June 19, 2014 to Sarkar from Larry Walker, the director of the National Center for Natural Products Research at the University of Mississippi, Walker chides Sarkar for not revealing the extent of the ongoing questions over his research during the interview process:

Continue reading Lawsuit against Ole Miss for rescinded Sarkar job offer dismissed; briefs filed in PubPeer case

Here are the 10 — yes, 10 — reasons PLOS ONE retracted this paper

Screen Shot 2016-01-19 at 10.50.25 AMPLOS One is retracting a paper for overlapping with a Wikipedia page. And for containing material lifted from other sources. And for “language errors.” And for insufficient evidence that authors found the pathogens floating around in hospital air that they claimed to find.

The instances of plagiarism are a “huge problem,” each “enough for retraction on its own,” Jonathan Eisen, a microbiologist at the University of California, Davis, told us. Eisen, who posted several comments to the paper after its publication in October, added that the paper was “simply not technically sound.”

The paper — which even contains a spelling error in its title, “Metagenomic Human Repiratory Air in a Hospital Environment” — describes a gene sequencing method to screen the air in hospitals for pathogens. The retraction note lists 10 concerns with the paper: Continue reading Here are the 10 — yes, 10 — reasons PLOS ONE retracted this paper

Paper on pine tree genetics chopped for duplication

naslovna_vol6_no2A paper on genetic variability in Austrian pine trees apparently didn’t vary enough from other work.

The journal is now retracting the 2012 paper for having significant overlap with another paper published in 2008. Another researcher pointed out the duplication — which was unintentional, according to the note, the result of

an apparent failure in communication between the co-authors on both papers which caused the papers to be overlapped.

The overlapping papers share a first author, Aleksandar Lucic, who works at the Institute of Forestry in Serbia. The other author on both papers is Vasilije Isajev, at the Faculty of Forestry in Belgrade.

“Analysis of Genetic Variability of Austrian Pine (Pinus nigra Arnold) in Serbia Using Protein Markers” was published in South-East European Forestry. The journal is not indexed on Thomson Scientific’s Web of Knowledge.

Here’s the retraction note:

Continue reading Paper on pine tree genetics chopped for duplication

Three expressions of concern added to cancer researcher’s notice list

3.coverQuestions about data and conclusions in papers by a cancer researcher at the University of Maryland have led to three expressions of concern in the Journal of Biological Chemistry.

The notices follow four retractions — two for image duplications and two for unknown reasons — for Anil K. Jaiswal. The three papers under notice are all on mechanisms that regulate gene expression; PubPeer commenters have raised questions about some of the figures in the papers.

The expression of concern on all three papers reads, in full:

Continue reading Three expressions of concern added to cancer researcher’s notice list

Satellite paper grounded for plagiarizing — from the same journal

1-s2.0-S0094576515X00129-cov150hPlagiarism happens; we see it a lot. But some cases stand out from the crowd.

For instance, we just came across an example where authors plagiarized from a paper in the same journal. Specifically, a 2015 paper on satellite orbits was found to have “extensive overlap” with another paper published in Acta Astronautica four years earlier. The last authors of the papers have connections, too — they used to work together at the Vikram Sarabhai Space Centre in India, and in 2006, they co-authored a paper together.

M. Xavier James Raj is author on the retracted paper. He was a PhD student under R.K. Sharma, author of the paper he borrowed from. Sharma currently works at Karunya University in India.

Here’s the retraction note for “Analytical orbit predictions for low and high eccentricity orbits using uniformly regular KS canonical elements in an oblate atmosphere:”

Continue reading Satellite paper grounded for plagiarizing — from the same journal

Robot for stroke patients paper copied 3 pages of equations

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A 2014 paper on a robotic system for patients who have had a stroke contains three pages of equations that are not original.

According to the retraction note, “Cascade controller design and stability analysis in FES-aided upper arm stroke rehabilitation robotic system” copied the equations from a paper that other researchers presented at a conference in 2012. The papers both describe a system that delivers a boost of electricity to stroke patients’ arms to help them perform a task.

Here’s the note, from Nonlinear Dynamics:

Continue reading Robot for stroke patients paper copied 3 pages of equations

Communications researcher regrets “severe shortcomings” in three publications

3A communications researcher in Switzerland has made a few errors in his efforts to communicate his research.

Peter J. Schulz, who works at the University of Lugano, has lost a paper which did not “appropriately acknowledge” another paper as its primary source. He has also corrected a paper with “severe shortcomings in the references.” Both papers were published in the journal Argumentation. 

In addition, he is facing allegations that a book chapter contains some unattributed material.

Schultz acknowledged the problems in a statement he emailed to us:

I regret very much the severe shortcomings in the three publications.

Here’s the retraction note for “Comments on ‘Strategic Manoeuvring with the Intention of the Legislator in the Justification of Judicial Decisions’”: Continue reading Communications researcher regrets “severe shortcomings” in three publications

List of retractions, corrections grows for Duke researchers

cov200hDuke researcher Michael Foster and his former co-author Erin Potts-Kant are adding to their notice count with a major correction from late last year to a paper on how certain cells in mice respond to a pneumonia infection, citing “potential discrepancies in the data.”

The correction is actually a partial retraction: The note explains that parts of three figures should be discounted.

We’ve also recently unearthed multiple corrections and two retractions from the pair that we missed from earlier in 2015.

After questions about the data in the corrected paper arose, the authors were able to replicate most of the experiments in the paper, according to the note. But since the paper was published, the senior author passed away, closing her lab, so they couldn’t repeat all of the work.

Here’s the correction notice for “Mast cell TNF receptors regulate responses to Mycoplasma pneumoniae in surfactant protein A (SP-A)−/− mice,” published in The Journal of Allergy and Clinical Immunology:

Continue reading List of retractions, corrections grows for Duke researchers

Authors retract two papers for “severe conflicts of author sequences”

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A group of authors has earned two retractions for a pair of papers on which they had “severe conflicts of author sequences,” according to the retraction note.

All of the authors were involved in a recent spate of compromised peer review that hit Springer journals back in August. Among the 64 retracted papers this summer, one included all of the authors on the two recently retracted papers, including first author Yan-Zhi Chen. Besides authorship issues, the latest two retractions also contain a “striking similarity to other publications,” according to the retraction notices.

The notes for the two papers are the same, except for the title of the paper. (They are also paywalled, tsk tsk!)

Here’s what the notes say:

Continue reading Authors retract two papers for “severe conflicts of author sequences”