Color centers in silicon carbide have increasingly attracted attention in recent years owing to their excellent properties such as single photon emission, good photostability, and long spin coherence time even at room temperature. As compared to diamond which is widely used for

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Background-Little emphasis has been placed on behavioral interventions addressing caregivers' (CGs) physical health. The purpose of this pilot study was to examine the effects of lifestyle physical activity in CGs of persons with Alzheimer's disease.

It is a highly expected avenue to construct dual-carbon sodium-ion hybrid capacitors (SIHCs) using hierarchical porous carbon with interconnected pores, high accessible surface area, and disordered carbon frameworks for ameliorating the sluggish kinetics of SIHCs. In this work, a novel dual-carbon SIHCs system with homologous enhanced kinetics hierarchical porous hollow carbon spheres (HPCS) and hierarchical porous hollow carbon bowls (HPCB) as the anode and cathode is constructed for the first time. In a Na half-cell configuration, the HPCS anode synthesized through a facile one-pot in-situ template route demonstrates a superior reversible capacity as well as outstanding rate capability and cycleability, and the HPCB cathode fabricated by chemical activation of HPCS exhibits excellent capacitive behaviors. Thanks to superior properties and structures of the anode and cathode, the constructed novel dual-carbon SIHCs present an exceptionally high energy/power density (128.5 Wh kg–1 and 11.9 kW kg–1), along with a long cycling lifespan with retained morphology. This study on the kinetics of enhanced dual-carbon SIHCs opens a new avenue for optimizing the microstructure of hierarchical porous carbon and constructing new type of high-performance SIHCs systems.

Composites of poly(lactic acid) (PLA) and a series of renewable and biobased copolyesters (PLBSIs) were manufactured by melt blending to toughen PLA. Benefiting from reasonable macromolecular design, the introduction of lactic acid in PLBSIs not only increases the compatibility with PLA but also helps PLBSIs turn from crystalline plastic to amorphous elastomer. The increasing compatibility was proved by the decreasing particle size of PLBSIs in PLA, and the better toughening effect of elastomer than that of plastic was characterized by the thermal tensile test. Thus, the supertoughened PLA composites were obtained and exhibited maximum elongation at break of 324% and impact strength of 35.7 kJ/m 2 , 50 and 15 times higher than neat PLA, respectively. Excellent performance in 3D-printed tensile tests implies the toughened PLA was ideal 3D-printing ink. The supertoughened PLA will eliminate the brittleness of PLA for wide application and possess great potential for industrial and engineering fields.

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Introduction The Clinical Dementia Rating (CDR) is widely used in Alzheimer's disease research studies and has well established reliability and validity. To facilitate the development of an online, electronic CDR (eCDR) for more efficient clinical applications, this study aims to produce a shortened version of the CDR, and to develop the statistical model for automatic scoring. Methods Item response theory (IRT) was used for item evaluation and model development. An automatic scoring algorithm was validated using existing CDR global and domain box scores as the reference standard. Results Most CDR items discriminate well at mild and very mild levels of cognitive impairment. The bi‐factor IRT model fits best and the shortened CDR still demonstrates very high classification accuracy (81%∼92%). Discussion The shortened version of the CDR and the automatic scoring algorithm has established a good foundation for developing an eCDR and will ultimately improve the efficiency of cognitive assessment.

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