Category: by journal

More than half of top-tier economics papers are replicable, study finds

scienceApproximately six out of 10 economics studies published in the field’s most reputable journals — American Economic Review and the Quarterly Journal of Economics — are replicable, according to a study published today in Science.

The authors repeated the results of 18 papers published between 2011 and 2014 and found 11 — approximately 61% — lived up to their claims. But the study found the replicated effect to be on average only 66% of that reported in the earlier studies, which suggests that authors of the original papers may have exaggerated the trends they reported.

Colin Camerer, a behavioral economist at the California Institute of Technology in Pasadena, who co-authored the study, “Evaluating replicability of laboratory experiments in economics,” told us: Continue reading More than half of top-tier economics papers are replicable, study finds

Sample tampering leads to plant scientist’s 7th retraction

Jorge Vivanco
Jorge Vivanco

Plant scientist Jorge Vivanco has earned his seventh retraction, after an investigation found data from soil samples were “intentionally fabricated by a third party.”

Vivanco and his former postdoc Harsh Bais made a name for themselves by discovering the secret behind a nasty invasive plant: It secretes a harmful form of catechin, which kills everything around it, suggesting it could serve as a new herbicide. The findings earned the researchers a story in the New York Times.

In the newly retracted paper, published in 2005, first author Laura Perry — then a postdoc at Colorado State University — further explored the role of the plant-killer, working with Vivanco as the last author. However, when a team working in the building next door had trouble finding catechin in their samples, Perry took another look, and concluded that her samples had been tampered with.

In other words, Perry told us:   Continue reading Sample tampering leads to plant scientist’s 7th retraction

Hands are the “proper design by the Creator,” PLOS ONE paper suggests

Screen Shot 2016-01-19 at 10.50.25 AMA paper about the biomechanics of human hands published last month in PLOS ONE is raising some questions on Twitter, after readers stumbled upon some curious language in the abstract:

The explicit functional link indicates that the biomechanical characteristic of tendinous connective architecture between muscles and articulations is the proper design by the Creator to perform a multitude of daily tasks in a comfortable way.

Yeah, that’s right — “the Creator.” You don’t see such language all that often in academic papers.

Not surprisingly, it’s prompted some harsh reactions from readers: Continue reading Hands are the “proper design by the Creator,” PLOS ONE paper suggests

EMBO awardee under investigation loses grant

Sonia Melo
Sonia Melo

Sonia Melo, the recipient of an early career award from the European Molecular Biology Organization (EMBO) who fell under investigation after one of her papers was retracted, has now lost the grant.

On the EMBO release announcing the nine awardees of the 2015 Installation Grants, there now appears an asterisk beside Melo’s name. At the bottom of the page, this message appears: Continue reading EMBO awardee under investigation loses grant

Molecular self-assembly paper fell apart

1049_soft_matter_f2c-900Authors are retracting a 2014 paper about how liquid-crystalline materials self-organize in low temperature conditions after realizing they had measured the temperatures incorrectly.

The error affected three figures and a table in “Milestone in the NTB phase investigation and beyond: direct insight into molecular self-assembly.” The paper, published in Soft Matter, has been cited three times, according to Thomson Reuters Web of Science.

The retraction note, published in August, offers more detail as to exactly what went wrong:

Continue reading Molecular self-assembly paper fell apart

Death camp dog satire retracted when German journal wasn’t in on joke

Screen Shot 2016-03-01 at 2.46.54 PMTotalitarianism and Democracy has removed a paper claiming that German Shepherds belonging to guards at the Berlin Wall descended from dogs used at concentration camps, after learning that the paper was a work of satire, The Guardian reports.

The paper, and its author, are the creation of the anonymous group “Christiane Schulte and friends.”

This isn’t the first hoax we’ve seen in publishing: Don’t forget journalist John Bohannon, who submitted hundreds of fake papers to open access journals, and more recently conjured up a study that showed chocolate helps you lose weight. (And, of course, a paper in a Romanian magazine that listed porn star Ron Jeremy and Michael Jackson among its references.) Like many other hoaxers, the group say in a statement their purpose was to shine light on problems in academic publishing.

The latest victim: a Dresden-based journal, The Guardian explains:

Continue reading Death camp dog satire retracted when German journal wasn’t in on joke

Entire paper about cell division plagiarized

Chinese med jA paper about the role of specific proteins in the separation of newly replicated chromosomes is being retracted from the Chinese Medical Journal, after editors found out that the entire article was plagiarized.

The study, “MreBCD Associated Cytoskeleton is Required for Proper Segregation of the Chromosomal Terminus during the Division Cycle of Escherichia Coli,” names Feng Lu as the corresponding author and claims that the work was done in his lab at the Medical School of Henan University in Henan, China. The misappropriation came to light when a member of Lawrence Rothfield’s lab at the University of Connecticut saw the paper after it was published online last April, and realized that it was an exact replica of an unpublished paper that Rothfield’s own lab had produced.

Here’s the retraction note from the journal: Continue reading Entire paper about cell division plagiarized

High-profile critic slams Nature letters about dinosaur growth following corrections

cover_nature (1)Authors of a pair of letters in Nature that concluded dinosaurs reached their full size surprisingly quickly are standing by their conclusions, despite challenges from a high-profile critic.

In the letters, researchers led by first author Gregory M. Erickson, a paleobiologist at The Florida State University, concluded that massive dinos grew fast — for example, a 5.5 ton T-Rex could reach skeletal maturity in just two decades. However, when Nathan Myhrvold tried to reanalyze the data, he couldn’t replicate the results. The authors have issued corrections to address the small mistakes unearthed by Myhrvold’s analysis, but argue he couldn’t replicate their results because they hadn’t fully explained their methodology.

After Myhrvold attempted to replicate the findings of maximum size and growth rate for several papers, he found issues in many, including the two Nature letters, according to a press release on Myhrvold’s website: Continue reading High-profile critic slams Nature letters about dinosaur growth following corrections

Surgery studies lacked ethics committee approval

3Surgery Today has pulled a pair of papers that share many authors because the studies they describe were not approved by an institutional ethics committee.

One describes a case in which the researchers removed a mass from a 64-year-old woman’s small intestine; the other describes how the authors removed a growth from a patient’s pancreas. They conclude that the surgery techniques used — like a laparoscopic pancreaticoduodenectomy, a take on the “Whipple Procedure” — can be “feasible, safe, and effective” in certain patients.

The papers share several authors, including a first author, Akihiro Cho, whose affiliation on the papers is Chiba Cancer Center Hospital in Japan. They also share a retraction note, which explains how the journal learned of the issue:

Continue reading Surgery studies lacked ethics committee approval

Upon discovering several errors, authors retract gastric cancer paper

mmr_12_4After finding several errors in their paper about the molecular activity underlying gastric cancer, the authors unanimously decided to retract it.

According to the retraction note, three figures in the paper had β‑actin bands that were omitted, interchanged, or both.

The retraction note provides the details:

Continue reading Upon discovering several errors, authors retract gastric cancer paper