Category: investigator error

Chemist Craig Hill, author of JACS and Science papers, explains the retractions

Last week, we reported that Craig Hill, a prominent chemist at Emory University, and his colleagues at six other institutions are retracting three papers they published in the mid-2000s, two in the Journal of the American Chemical Society and one in Science.

We have now spoken with Hill, who walked us through the history of the research. According to Hill, the international team of researchers, after “unusually extensive experiments” felt they had enough evidence to publish their original articles

but all authors (and others) remained skeptical given the unprecedented nature of these compounds.

Hill’s lab continued to conduct experiments and probe the original data after the publications, he said. (Hill wrote a piece for Nature in 2008 explaining the significance of the research, which, among other things, might lead to better ways of harnessing solar energy.) Continue reading Chemist Craig Hill, author of JACS and Science papers, explains the retractions

Paper claiming hottest 60-year-span in 1,000 years put on hold after being published online

The authors of a study of Australasian temperatures over the past millennium have put the print publication of an online-first study on hold after errors were identified in the records they used.

Here’s how RealClimate.org summarized the findings of the original paper, which was published in mid-May:

The conclusion reached is that summer temperatures in the post-1950 period were warmer than anything else in the last 1000 years at high confidence, and in the last ~400 years at very high confidence.

The page at the American Metereological Society site where the paper used to be now reads: Continue reading Paper claiming hottest 60-year-span in 1,000 years put on hold after being published online

JACS, Science retracting three papers from leading Emory chemist Craig Hill

The Journal of the American Chemical Society (JACS) and Science are retracting three papers by Craig Hill and colleagues which, we’re told, have been the focus of intense scrutiny within the field since they first appeared in the mid-2000. Hill is an internationally renowned expert in catalysis who has won a slew of awards for his work.

JACS has acted first, issuing two notices recently about the papers it published. The first notice, for 2005’s “A Palladium-Oxo Complex. Stabilization of This Proposed Catalytic Intermediate by an Encapsulating Polytungstate Ligand,” states: Continue reading JACS, Science retracting three papers from leading Emory chemist Craig Hill

Premature delivery? Paper on rapid assay for ruptured placenta pulled for “mishandling” of tests

The other day we brought you the story (well, not quite a STORY) of a group of researchers who had to retract a paper in the Journal of Computational Chemistry because of a “computation error.” We still don’t know what that means.

That was fresh in our minds when we came across the following retraction notice in the Journal of Obstetrics and Gynaecology Research: Continue reading Premature delivery? Paper on rapid assay for ruptured placenta pulled for “mishandling” of tests

Computational chem journal retracts article for, um, computation error

If you’re going to publish in the Journal of Computational Chemistry, it probably makes sense to have one’s computer tuned up for the task.

Or else you might wind up like a group of researchers in China who had to endure this misfortune: Continue reading Computational chem journal retracts article for, um, computation error

‘Molecular characterization’ errors lead to retraction from medicinal chemistry journal

The European Journal of Medicinal Chemistry has published a curious retraction notice for a paper in its February 2012 issue from a group of Indian scientists.

The abstract of the article,”Proton-pumping-ATPase-targeted antifungal activity of cinnamaldehyde based sulfonyl tetrazoles,” is still available on Medline:

Here’s what the abstract of the paper said about the study: Continue reading ‘Molecular characterization’ errors lead to retraction from medicinal chemistry journal

Millennium Villages Project forced to correct Lancet paper on foreign aid as leader leaves team

A senior member of a high-profile foreign aid research team has left the project on the heels of a Lancet correction of a heavily criticized paper the team published earlier this month.

Paul Pronyk, who until last week was director of monitoring and evaluation at Columbia University’s Center for Global Health and Economic Development, which runs the Millennium Villages Project, wrote a letter to the Lancet acknowledging errors in the paper, “The effect of an integrated multisector model for achieving the Millennium Development Goals and improving child survival in rural sub-Saharan Africa: a non-randomised controlled assessment,” originally published May 8. That admission came after Jesse Bump, Michael Clemens, Gabriel Demombynes, and Lawrence Haddad wrote a letter criticizing the work, which was published this week accompanied by corrections to the paper: Continue reading Millennium Villages Project forced to correct Lancet paper on foreign aid as leader leaves team

Not for the faint of heart: Cardiologists retract syncope paper after realizing data columns weren’t aligned right

Improperly aligned columns have cost researchers at the Mayo Clinic a paper in the Journal of the American College of Cardiology.

The paper originally concluded that fainting spells (syncope) give patients with high blood pressure in their lung arteries poor prognoses, an observation that turned out to be incorrect.

The problem? The group merged two electronic databases, but did not align columns properly, a problem found only after first author Rachel Le revisited the dataset looking to cull more data.

The retraction notice published on May 22 (the one on ScienceDirect is free to air, while the one on the JACC site is behind a paywall): Continue reading Not for the faint of heart: Cardiologists retract syncope paper after realizing data columns weren’t aligned right

Patient database errors lead to three rheumatology retractions

The authors of three papers in Rheumatology International about systemic sclerosis, also known as scleroderma, are retracting them after patients were misidentified in databases. According to the three notices:

This article has been retracted at the request of the authors. The authors made a serious statistical error which unfortunately invalidates their results.

Corresponding author Metin Isik tells Retraction Watch that the error was adding a patient with systemic sclerosis database twice, and adding another patient with polymyositis, not systemic sclerosis, to the sclerosis database. (Why the journal didn’t spell that out in the notice is anyone’s guess, but we’ve asked the editor for comment and will update with anything we hear back.)

It’s easy to see how three patients would affect the results of “Systemic sclerosis and malignancies after cyclophosphamide therapy: a single center experience,” Continue reading Patient database errors lead to three rheumatology retractions

Rheumatology explains what went wrong with meta-analysis

Earlier this week we wrote about how Rheumatology, the official journal of the British Society for Rheumatology, was retracting an error-beset meta-analysis on the association between lupus and cervical cancer.

As the notice explained: Continue reading Rheumatology explains what went wrong with meta-analysis