Category: united states

Researchers’ productivity hasn’t increased in a century, study suggests

Screen Shot 2016-01-19 at 10.50.25 AMAre individual scientists now more productive early in their careers than 100 years ago? No, according to a large analysis of publication records released by PLOS ONE today.

Despite concerns of rising “salami slicing” in research papers in line with the “publish or perish” philosophy of academic publishing, the study found that individual early career researchers’ productivity has not increased in the last century. The authors analyzed more than 760,000 papers of all disciplines published by 41,427 authors between 1900 and 2013, cataloged by Thomson Reuters Web of Science.

The authors summarize their conclusions in “Researchers’ individual publication rate has not increased in a century:”

Continue reading Researchers’ productivity hasn’t increased in a century, study suggests

Authors retract striking circadian clock finding after failing to replicate

Screen Shot 2016-03-02 at 9.29.28 AMThe authors of a paper showing a “striking and unanticipated” relationship between light and temperature in regulating circadian rhythms are retracting it when the results couldn’t be replicated.

After being contacted by another group who couldn’t reproduce the data, the authors failed to, as well. They “have absolutely no explanation for the discrepancies with the original results,” according to the note in PLOS Biology.

It’s an unfortunate turn of events, but Continue reading Authors retract striking circadian clock finding after failing to replicate

Popular paper by famous longevity researcher gets mega-correction

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Leonard Guarente

A highly cited paper by a well-known scientist at the Massachusetts Institute of Technology who studies longevity could have aged better: The ten-year-old paper has earned its second correction.

It’s one of multiple papers by lead author Leonard Guarente that have been questioned on PubPeer. Guarente has already retracted one, and plans to address another. Continue reading Popular paper by famous longevity researcher gets mega-correction

We’re using a common statistical test all wrong. Statisticians want to fix that.

ASA-newlogoAfter reading too many papers that either are not reproducible or contain statistical errors (or both), the American Statistical Association (ASA) has been roused to action. Today the group released six principles for the use and interpretation of p values. P-values are used to search for differences between groups or treatments, to evaluate relationships between variables of interest, and for many other purposes.  But the ASA says they are widely misused. Here are the six principles from the ASA statement:  Continue reading We’re using a common statistical test all wrong. Statisticians want to fix that.

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

Author with seven retractions makes Thomson Reuters list of top scientists — plus another twist

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Bharat Aggarwal

A cancer researcher who recently retired from MD Anderson Cancer Center —  and also recently lost seven papers from one journal following a multi-year investigation — is one of the world’s top scientists, according to a new ranking.

In Thomson Reuters Web of Science’s 2015 list of The World’s Most Influential Scientific Minds, Bharat Aggarwal’s name tops the section for Pharmacology and Toxicology (see p. 89). In all fairness, the list is presented in alphabetical order, and seven of Aggarwal’s papers have each been cited at least 1,000 times. But in addition to his recent seven retractions, he has has six corrections, two unexplained withdrawals, and two Expressions of Concern.

We contacted Thomson Reuters Web of Science to inquire, and a spokesperson told us: Continue reading Author with seven retractions makes Thomson Reuters list of top scientists — plus another twist

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

Journals flag 6 papers, request investigation of New Jersey university biologists

Two journals have published six expressions of concern for a pair of biologists at Rowan University, and are asking the university to undertake an investigation.

We contacted the editors of the two journals — Journal of Cell Science and Biology Open — who both said they decided to flag the papers after a reader raised concerns about potential re-use of blot images. The six papers are co-authored by John G. Pastorino, a molecular biologist at Rowan University in New Jersey and Nataly Shulga, whose LinkedIn identifies her as a research specialist at the same institution. According to the nearly identical notes, the journals (which share a publisher) undertook a review of the original data, but “felt unable to resolve this matter.”

The expressions of concern — five from the  Journal of Cell Science and one from Biology Open — include pretty much the same text. Here’s the note that appeared in JCS:

Continue reading Journals flag 6 papers, request investigation of New Jersey university biologists

Reporter fired by WIRED had been dismissed by newspaper for missing deadlines

Screen Shot 2016-02-25 at 5.21.28 PMWe have learned that Nic Cavell, who was dismissed last week from WIRED for plagiarizing in several stories for the publication’s website, was fired from another publication for missing deadlines.

Before Cavell was selected to be a 2016 reporting fellow at WIRED magazine — a paid six-month position for promising young reporters — he wrote on the crime beat for The Riverdale Press, a Bronx paper. His 20 bylines span February 2015 to June 2015. We have learned from a source who wished to remain anonymous that he was let go after he had trouble handing in those stories on time.

Riverdale Press editor Shant Shahrigian, who declined to comment on the reasons for Cavell’s departure, told us that he had not encountered plagiarism in the reporter’s work: Continue reading Reporter fired by WIRED had been dismissed by newspaper for missing deadlines

Al Jazeera America pulls satire hours after posting, calling it “not appropriate”

al jazeera america About 13 hours after posting a satirical piece it posted at 2:00 AM today listing six hot media startups to watch in 2016, Al Jazeera America has retracted it.

The satire? Al Jazeera itself is listed as #6, even though the channel is scheduled to close down in April.

In its place is the following message: Continue reading Al Jazeera America pulls satire hours after posting, calling it “not appropriate”