Chronotype is an inherent physiological trait reflecting an individual's subjective preference for their sleep awakening time, exerting a substantial influence on both physical and mental well-being. While existing research has established a close relationship between chronotype and individual brain structure, prior studies have predominantly focused on individual measurements of brain structural scales, thereby limiting the exploration of the underlying mechanisms of structural changes. This study seeks to validate previous research findings and enhance our understanding of the correlation between circadian rhythm preference and diverse cortical indicators in healthy young individuals.
View Article and Find Full Text PDFTin sulfide (SnS) has emerged as a promising anode material for sodium ion batteries (SIBs) due to its high theoretical capacity and large interlayer spacing. However, several challenges, such as severe insufficient electrochemical reactivity, rapid capacity degradation, and poor rate performance, still hinder its application in SIBs. In this study, in situ introduction of copper ions and a carbon conductive framework to form SnS nanocrystals embedded in a CuSnS lamellar structure heterojunction composite (SnS/CuSnS/RGO) with graphene as the supporting material is proposed to achieve dual-driven sodium ion/electron migration during the continuous electrochemical process.
View Article and Find Full Text PDFBackground: Bedtime procrastination refers to an individual's inability to go to bed at a predetermined time without external obstacles. Previous researchers have found that the bedtime procrastination is harmful to human physical and mental health, but these research on bedtime procrastination have mostly focused on exploring individual factors, while ignoring the external environmental factors. Therefore, this is the first study to investigate bedtime procrastination from the perspective of family environments.
View Article and Find Full Text PDFBackground: Previous studies on bedtime procrastination mainly focused on the influencing factors of stress and draw less attention on the role of family environment.
Aim: This study aimed to explore the effect of psychological stress reaction on bedtime procrastination in young adults, with considering the mediating effect of smartphone addiction, and the moderating effect of family cohesion during the COVID-19 pandemic.
Methods: A sample of 1217 young adults completed psychological stress reaction scale, Smartphone addiction tendency scale for young adults, bedtime procrastination scale and family cohesion scale.
Background: Crystallized intelligence (Gc) and fluid intelligence (Gf) are regarded as distinct intelligence components that statistically correlate with each other. However, the distinct neuroanatomical signatures of Gc and Gf in adults remain contentious.
Methods: Machine learning cross-validated elastic net regression models were performed on the Human Connectome Project Young Adult dataset ( = 1089) to characterize the neuroanatomical patterns of structural magnetic resonance imaging variables that are associated with Gc and Gf.
Chronotype reflects individual differences in circadian rhythms and influences individual psychology and behavior. Previous studies found altered subcortical structures are closely related to individual chronotypes. However, these studies have been conducted mainly using voxel-based morphometry and traditional volume measurement methods with certain limitations.
View Article and Find Full Text PDFA novel electroless plating technique is utilized by coating a polydopamine layer on zinc foil (Zn@PDA) to regulate the deposition and growth of zinc dendrites, as well as suppress the occurrence of hydrogen evolution and passivation products for aqueous zinc-ion batteries. Polydopamine (PDA) has a strong adsorption ability on Zn foil due to the formation of a bidentate bonding during the electroless plating. Further, it indicates that the abundant hydroxyl groups of PDA react as zinc-philic sites to adsorb Zn and further undergo redox by forming carbonyl groups to effectively induce the uniform deposition and growth of zinc dendrites.
View Article and Find Full Text PDFA new approach is employed to boost the electrochemical kinetics and stability of vanadium oxygen hydrate (VOH, VO·HO) employed for aqueous zinc-ion battery (ZIB) cathodes. The methodology is based on electrically conductive polyaniline (PANI) intercalated-exfoliated VOH, achieved by preintercalation of an aniline monomer and its polymerization within the oxide interlayers. The resulting graphene-like PANI-VOH nanosheets possess a greatly boosted reaction-controlled contribution to the total charge storage capacity, resulting in more material undergoing the reversible V to V redox reaction.
View Article and Find Full Text PDFACS Appl Mater Interfaces
November 2019
Layered tin monosulfide (SnS) is a promising anode material for sodium-ion batteries because of its high theoretical capacity of 1020 mA h g. Its large interlayer spacing permits fast sodium-ion transport, making it a viable candidate for sodium-ion capacitors (SICs). In this work, we designed and synthesized oriented SnS nanosheets confined in graphene in the presence of poly(diallyl dimethyl ammonium chloride) by electrostatic self-assembly during hydrothermal growth.
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