Within-session propulsion asymmetry changes have a limited effect on gait asymmetry post-stroke.

Biomechanical gait impairments, such as reduced paretic propulsion, are common post-stroke. Studies have used biofeedback to increase paretic propulsion and reduce propulsion asymmetry, but it is unclear if these changes impact overall gait asymmetry. There is an implicit assumption that reducing propulsion asymmetry will improve overall gait symmetry, as paretic propulsion has been related to numerous biomechanical impairments.

Broad Range Tuning of InAs Quantum Dot Emission for Nanophotonic Devices in the Telecommunication Bands.

InAs semiconductor quantum dots (QDs) emitting in the near-infrared are promising platforms for on-demand single-photon sources and spin-photon interfaces. However, the realization of quantum-photonic nanodevices emitting in the telecom windows with similar performance remains an open challenge. In particular, nanophotonic devices incorporating quantum light emitting diodes in the telecom C-band based on GaAs substrates are still lacking due to the relaxation of the lattice constant along the InGaAs graded layer which makes the implementation of electrically contacted devices challenging.

Using machine learning to detect noncredible cognitive test performance.

Advanced algorithmic methods may improve the assessment of performance validity during neuropsychological testing. This study investigated whether unsupervised machine learning (ML) could serve as one such method. Participants were 359 adult outpatients who underwent a neuropsychological evaluation for various referral reasons.

The Ubiquity of Cognitive Impairment in Human Illness: a Systematic Review of Meta-Analyses.

Objective: Cognitive dysfunction occurs in many neurological, psychiatric, and other health conditions. This review aimed to characterize the breadth and degree of cognitive morbidity associated with varied health conditions.

Method: We systematically reviewed Medline, EMBASE, and Cochrane databases for meta-analyses of cognitive dysfunction associated with any health condition.

Joint-level contributions to reducing mechanical work during split-belt walking in older adults.

The study of split-belt treadmill adaptation provides insight into the priorities determining how we adapt to novel conditions during walking. During split-belt adaptation, young adults reduce their metabolic cost and positive leg work in part by learning to take longer steps on the fast belt, thus adopting a positive step length asymmetry. However, aging may lead to a shift in the work performed by distal versus proximal joints, so it is unknown if older adults can similarly reduce the work performed by the legs during split-belt walking.