Chengdu Normal University

BackgroundWearable devices enable the continuous collection of kinematic information, such as gait and postural control, in real-life environments, offering potential for the early identification and stratified management of fall risk in older adults. However, quantitative integrated evidence regarding their overall accuracy in predicting future falls is lacking. This systematic review and meta-analysis aims to evaluate the accuracy of wearable devices in predicting falls among older adults and to explore the potential influence of key study characteristics on predictive performance.MethodsA systematic search was conducted in PubMed, Embase, Web of Science, and the Cochrane Library from database inception to October 9, 2025. Using a bivariate random-effects model, we pooled sensitivity and specificity, calculated likelihood ratios, and fitted a summary receiver operating characteristic (SROC) curve to determine the area under the curve (AUC). Subgroup analysis and meta-regression explored potential sources of heterogeneity. The risk of bias was assessed with the PROBAST tool.ResultsA total of 20 studies were included. The pooled sensitivity was 0.55 (95% CI: 0.42–0.67), specificity was 0.89 (95% CI: 0.84–0.93), positive likelihood ratio was 5.2, negative likelihood ratio was 0.50, and diagnostic odds ratio was 10.39. The area under the summary receiver operating characteristic (SROC) curve was 0.85 (95% CI: 0.81–0.88). Subgroup and regression analyses indicated that studies employing machine learning modeling demonstrated superior overall discriminative ability (AUC = 0.90). Predictive performance may be influenced by factors such as population age structure, sample size, and sensor placement location.ConclusionWearable devices exhibit good discriminative ability for predicting future falls in older adults, characterized overall by high specificity and moderate sensitivity. They are more suitable as tools for early screening and risk stratification in community and institutional settings, thereby supporting decision-making regarding intervention priorities.Systematic review registrationhttps://www.crd.york.ac.uk/PROSPERO/view/CRD420251274570.

With the development of Electrodynamic Suspension (EDS) maglevs for future railway transportation, the coupling relationship between superconducting magnets (SCMs) and track coils has drawn increasing attention. This article presents a novel study on the impact of the SCMs tilting angle θ with detailed electromagnetic-force analysis for EDS maglevs, addressing the insufficient consideration of SCMs tilting effects in previous studies. Using finite element method (FEM) simulations with the rotating mechanical magnetic (rmm) module, combined with the A-V mixed formulation and linear extrusion operator function, the electromagnetic characteristics of the suspension coils were analyzed as SCMs passed at 600 km/h with tilting angles θ ranging from 0° to 11°. Results indicate that θ altered the electromagnetic characteristics, broadened the magnetic flux density distribution. The induced current density exhibited a different response, with a notable increase in the z-axis direction and a phase advance of 1/4 cycle. The variation in electromagnetic force was similar to that of current density. These phenomena were mainly due to the closed-loop feedback mechanism of the suspension coils, which adaptively compensated for asymmetric magnetic coupling distortion. Overall, a novel study was conducted on the impact of the SCMs tilting angle θ for EDS high-speed maglevs, providing a theoretical basis for understanding complex coupling behaviors, and offering strategies for improving the structure and suspension system of future EDS maglevs.

BackgroundChina’s “Double First-Class” initiative has significantly reshaped higher education resources. While medical disciplines benefit from concentrated funding and platforms, they also face heightened competition and pressure. This study investigates the manifestations and mechanisms of covert academic bullying in these universities and its full-chain impact on young medical teachers’ academic output.MethodsUsing phenomenological and social constructivist approaches, 21 teachers from 12 universities were recruited through purposive and snowball sampling for semi-structured interviews. Data were transcribed, anonymized, and thematically analyzed with NVivo, yielding six core themes.ResultsCovert academic bullying follows an “entry restriction–process constraint–endpoint undermining” chain, involving information withholding, institutional marginalization, resource deprivation, heavy workload, unfair authorship, and reputation manipulation. Gender and career stage intersections intensify disadvantages, while core teams’ monopolization of resources restricts peripheral teachers’ opportunities in collaboration, project access, and platform utilization.ConclusionThe phenomenon is persistent and linked to centralized management and relationship-based culture. Recommended interventions include improving information transparency, ensuring review fairness, securing independent budgets and priority resources, and protecting authorship and reputation, supported by cross-institutional cooperation and online platforms to sustain research productivity and career resilience.

中文 李翱是我国中唐时期著名的哲学家、文学家，核心思想是由其《复性书》而阐发的心性论。本文通梳理中唐三教互动的背景以及李翱与佛道思想的接触渊源，并对其《复性书》进行义理解读，进而比照佛道相关理论，揭示其心性论的内在理路与融合转化。李翱以儒学为本，吸收佛教如来藏与道教思想，构建了以“复性”为核心、贯通天人的儒学体系，呈现出“同归型”三教会通的典型特征。李翱心性论的研究为儒学发展提供了义理阐释的新路径，完善了中古三教思想互动与儒家心性之学。 English Li Ao was a prominent philosopher and litterateur of the Mid-Tang period in China, whose core ideas revolve around the theory of mind-nature as elaborated in his work On Recovering Human Nature (Fu Xing Shu). This article traces the context of the interaction among Confucianism, Buddhism, and Daoism during the Mid-Tang era, examines Li Ao’s intellectual engagement with Buddhist and Daoist thought, and offers a philosophical interpretation of On Recovering Human Nature. By comparing relevant Buddhist and Daoist theories, it elucidates the internal logic and synthetic adaptation underlying Li Ao’s theory of mind and nature.Grounded in Confucianism, Li Ao assimilated elements from Buddhist Tathāgatagarbha thought and Daoist philosophy to construct a Confucian system centered on “recovering human nature,” one that connects heaven and humanity and exemplifies the “syncretic paradigm” of harmonizing the three teachings. Li Ao’s theory of mind and human nature pioneered a novel philosophical trajectory for the development of Confucianism and contributed significantly to the intellectual interplay among the three teachings in medieval China, as well as to the advancement of Confucian learning of mind and nature.

IntroductionMusical aesthetic emotions often display pleasant characteristics and function as a key reward mechanism in music appreciation. Previous research suggests that temporary mindfulness meditation training can enhance the aesthetic experiences associated with music aesthetic emotion processing (MAEP), fostering richer and more pleasant emotional responses. However, empirical evidence on the relationship between MAEP and mindfulness—particularly with respect to music genre, music training, and newly identified MAEP dimensions—remains limited. Therefore, this study, based on music-trained individuals and Chinese pop music, aims to investigate the effects of a 10-min mindfulness meditation training on MAEP.MethodsA 2 (group: Mindfulness Music Group [MMG] vs. Music Listening Group [MLG]) 3 (music style: R&B/Pop/Folk) mixed experimental design was adopted. Sixty-three Chinese college students with professional music training were randomly assigned to MMG (Male = 15, Female = 16) or MLG (Male = 12, Female = 20). Psychological measures included the Geneva Emotional Music Scale (GEMS), the Five Facet Mindfulness Questionnaire (FFMQ), and the Positive and Negative Affect Schedule (PANAS). Data were analyzed using repeated measures analysis of variance and independent samples t-tests.ResultsSelf-report results indicated no significant between-group differences in PANAS or FFMQ scores (all p > 0.05). Aesthetic attitudes were found to be significantly positively correlated with emotional experiences, suggesting that aesthetic attitudes may represent a novel MAEP dimension. Additionally, temporary mindfulness meditation training significantly improved both aesthetic attitudes and aesthetic judgment scores across all three music styles. However, enhancements in emotional experiences were observed only for Chinese Folk music. Compared with the MLG, the MMG demonstrated greater attention and altered time perception, along with reduced bodily control during music listening.ConclusionThese findings provide new insights into the relationship between mindfulness and MAEP and highlight a potential new dimension—aesthetic attitudes—that may contribute to the psychological mechanisms underlying MAEP.