Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘morocco’ Category

Honest errors take down math paper

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1-s2.0-S0022247X15X00217-cov150hAn incorrect proof has felled a math paper. There’s not too much to say in a straightforward situation like this one, which we’ve seen before — the result of honest errors, not any malfeasance.

Here’s the abstract for “Spectral mapping theorem for generalized Kato spectrum:”

In this paper, we give an affirmative answer to Mbekhta’s conjecture (Mbekhta, 1990) about the pseudo Fredholm operators in Hilbert space. As a consequence, we characterize pseudo Fredholm operators and we prove that the generalized Kato spectrum satisfies the spectral mapping theorem in the Hilbert spaces setting.

The paper — published in the Journal of Mathematical Analysis and Applications — has been cited twice, according to Thomson Scientific’s Web of Knowledge.

Here’s the retraction note:

Read the rest of this entry »

Written by Shannon Palus

November 26th, 2015 at 9:30 am

Journal bans authors of duplicated asthma paper

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22A common ailment known as duplication has taken down a paper about a common fungus and asthma.

Aspergillus spores are often ubiquitous yet harmless, but can irritate people whose lungs aren’t in top working order. Duplication, on the other hand, is more universally deadly. The editors of The Pan African Medical Journal told us that, in addition to the retraction, there were personal consequences for the authors:  Read the rest of this entry »

Written by Shannon Palus

October 7th, 2015 at 9:30 am

Plagiarism leads to retraction of conduction paper

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physica bPhysica B: Condensed Matter has retracted a 2013 paper by a group from Morocco and France for, well, inappropriate condensation of printed matter.

The article, “Granular and intergranular conduction in La1.32Sr1.68Mn2O7 layered manganite system,” came mostly from a team of physicists at  University Ibn Zohr, and appeared in June.

According to the retraction notice: Read the rest of this entry »

Written by amarcus41

October 18th, 2013 at 11:30 am

You’ve been dupe’d: Catching up on authors who liked their work enough to use it again

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photo by Mark Turnauckas via Flickr http://www.flickr.com/photos/marktee/

As we’ve noted before, we generally let duplication retractions make their way to the bottom of our to-do pile, since there’s often less of an interesting story behind them, duplication is hardly the worst of publishing sins, and the notices usually tell the story. (These are often referred to — imprecisely — as “self-plagiarism.”)

But that skews what’s represented here — boy, are there a lot of duplication retractions we haven’t covered! — and we might as well be more comprehensive. Plus, our eagle-eyed readers may find issues that we won’t see on a quick scan.

So with this post, we’re inaugurating a new feature here at Retraction Watch, “You’ve been dupe’d.” Every now and then, we’ll gather five of these duplication retractions at a time, and post them so they get into the mix, and into our category listing (see drop-down menu in right-hand column if you haven’t already). Here are the first five: Read the rest of this entry »