Mere days after tweets went viral pointing out that the purported error bars in one figure of a paper were really just the capital letter T, the publisher has marked it with an expression of concern. [12/22/22: The paper has now been retracted; see an update on this post.]
And that’s not all that’s strange about the paper.
The July 2022 article, “Monitoring of Sports Health Indicators Based on Wearable Nanobiosensors,” was published in a special issue of the journal Advances in Materials Science and Engineering, a Hindawi title.
The article purports to show that using nanoparticles can better measure the biochemical fitness levels of elderly people than other methods.
Continue reading A paper used capital T’s instead of error bars. But wait, there’s more!