Category: Nonlinear Dynamics

A whodunit: Journal retracts paper that copied from an unpublished manuscript

A journal has retracted a 2015 paper because it apparently plagiarized a manuscript submitted two years earlier — but we’re scratching our heads about how it all happened.

The paper, “Chattering-free variable structure controller design via fractional calculus approach and its application,” was published in Nonlinear Dynamics and has been cited 15 times, according to Clarivate Analytics’ Web of Science.

Here’s the notice:

Continue reading A whodunit: Journal retracts paper that copied from an unpublished manuscript

Robot for stroke patients paper copied 3 pages of equations

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A 2014 paper on a robotic system for patients who have had a stroke contains three pages of equations that are not original.

According to the retraction note, “Cascade controller design and stability analysis in FES-aided upper arm stroke rehabilitation robotic system” copied the equations from a paper that other researchers presented at a conference in 2012. The papers both describe a system that delivers a boost of electricity to stroke patients’ arms to help them perform a task.

Here’s the note, from Nonlinear Dynamics:

Continue reading Robot for stroke patients paper copied 3 pages of equations