Parent-child attachment and mental health in young adolescents: a moderated mediation analysis.

Introduction: The parent-child attachment has a significant impact on adolescents' mental health. However, the influence of psychological quality and coping styles on this connection remains unknown. This study examined the relationship between parent-child attachment and adolescent mental health, by exploring the mediating role of psychological quality and the moderating role of coping styles.

Design methodologies and engineering applications for ecosystem biomimicry: an interdisciplinary review spanning cyber, physical, and cyber-physical systems.

Ecosystem biomimicry is a promising pathway for sustainable development. However, while typical form- and process-level biomimicry is prevalent, system-level ecosystem biomimicry remains a nascent practice in numerous engineering fields. This critical review takes an interdisciplinary approach to synthesize trends across case studies, evaluate design methodologies, and identify future opportunities when applying ecosystem biomimicry to engineering practices, including cyber systems (CS), physical systems (PS), and cyber-physical systems (CPS).

Optimization design of two-stage amplification micro-drive system without additional motion based on particle swarm optimization algorithm.

With the increasing requirements of precision mechanical systems in electronic packaging, ultra-precision machining, biomedicine and other high-tech fields, it is necessary to study a precision two-stage amplification micro-drive system that can safely provide high precision and a large amplification ratio. In view of the disadvantages of the current two-stage amplification and micro-drive system, such as poor security, low motion accuracy and limited amplification ratio, an optimization design of a precise symmetrical two-stage amplification micro-drive system was completed in this study, and its related performance was studied. Based on the guiding principle of the flexure hinge, a two-stage amplification micro-drive mechanism with no parasitic motion or non-motion direction force was designed.

Design and Performance Research of a Precision Micro-Drive Reduction System without Additional Motion.

A micro-drive system is a key part of macro-micro-drive technology and precision positioning technology in which a micro-drive reduction system can provide more precise motion and suitable small space motion. Therefore, it is necessary to study precision micro-drive reduction systems. In this paper, based on the design of a micro-drive reduction mechanism without force and displacement in non-motion direction, a precision micro-drive reduction system driven by a piezoelectric ceramic actuator (PZT) was designed, and the strength, dynamic and motion performance of the system was analyzed.

Positioning Performance of a Sub-Arc-Second Micro-Drive Rotary System.

In the macro/micro dual-drive rotary system, the micro-drive system compensates for the position error of the macro-drive system. To realize the sub-arc-second (i.e.

Investigating Chinese University Students' Enjoyment in a Web-Based Language Learning Environment: Validation of the Online Foreign Language Enjoyment Scale.

The revolution in web-based technologies has enriched pedagogical practices and motivated scholars to address learners' positive and negative emotions in the web-based language learning environment. In this study, we first examined the psychometric properties of the Foreign Language Enjoyment Scale (FLES) and then developed the Online Foreign Language Enjoyment Scale (OFLES). We adopted a mixed-method approach using a sample of 383 first language Chinese EFL undergraduates.