pH-sensitive carbon nanotubes graft polymethylacrylic acid self-assembly nanoplatforms for cellular drug release.

pH-Sensitive carbon nanotubes graft polymethylacrylic acid hybrids (CNTs--PMAA) were prepared through a three-step process, and self-assembled into core-shell micelle nanoparticles. The chemical structure of the hybrids were characterized by FTIR, H NMR and TGA. The critical micelle concentration (CMC) was measured by surface tension, and the value hinged on the Mn values or chain lengths of PMAA segments.

The Temporal Focus of Mind-Wandering and Chinese Adolescents' Well-Being.

The relationships between the temporal focus of mind-wandering (i.e., past-oriented and future-oriented mind-wandering) and well-being are important issues for adolescents, which may have significant implications on their well-being and self-identity development.

Longitudinal and Gender Measurement Invariance of the Gratitude Questionnaire in Chinese Adolescents.

The 5-item Gratitude Questionnaire (GQ-5) is one of the most commonly used instruments to measure dispositional gratitude in adolescents. The purpose of this study was to verify the longitudinal measurement invariance (LMI) and gender measurement invariance (GMI) of the GQ-5 that was administered to an adolescent sample twice over the course of 18 months ( = 669). Single-group confirmatory factor analysis (CFA) was adopted to examine the LMI and multiple-group CFA was conducted to assess the GMI.

The Impact of Social Value Orientation, Game Context and Trust on Cooperative Behavior After Cooperative Video Game Play.

This study explores the effects of the cooperative video game context, social value orientation (SVO) and trust on cooperative behavior. The main finding is that collaborative game play significantly increases cooperative behavior, especially in prosocial individuals. In addition, a mediation model is established in which trust partially mediates the association between the game mode and cooperative behavior.