Search

ObjectiveThis study aims to explore the impact of physical exercise on feelings of inferiority among college students, focusing on the mediating roles of social support and emotional regulation ability. The research investigates both direct and indirect pathways to understand how physical exercise enhances psychological resilience and mitigates negative self-perceptions.MethodsA sample of 2,036 college students from 15 provinces in China was surveyed using validated scales for physical exercise, feelings of inferiority, social support, and emotional regulation ability. Structural equation modeling (SEM) was employed to test hypothesized pathways, including direct effects and chain mediation effects. Gender invariance was assessed through multi-group analysis to ensure consistency across male and female participants.ResultsPhysical exercise significantly reduces feelings of inferiority, both directly and indirectly. Social support and emotional regulation ability independently mediate this relationship, with social support further enhancing emotional regulation in a sequential chain mediation effect. Gender invariance testing confirmed that these relationships are consistent for male and female students. Key findings indicate that physical exercise fosters social connections and strengthens emotional regulation, collectively promoting psychological resilience and reducing feelings of inferiority.ConclusionThe findings emphasize the critical role of physical exercise in enhancing mental health among college students through social and emotional pathways. Holistic intervention programs incorporating physical activities with social interaction and emotional skill-building can effectively alleviate feelings of inferiority. These insights provide actionable recommendations for educational institutions to promote mental health and foster inclusive, supportive campus environments.

The reservoir heterogeneity of Suizhong 36-1 oilfield is very obvious, the average permeability reaches 2000mD. Long-term water injection development leads to serious water channeling in high permeability layers, resulting in ineffective circulation of injected water and reduction of oil recovery. It is urgent to form an effective EOR method. In this paper, the oil displacement effect of different combination slugs including polymer gel, polymer microsphere and surfactant is evaluated by means of conformance control and chemical flooding. Three-layer heterogeneous 3-D plate model is used for oil displacement experiment. The experimental results show that the combination slug sequentially composed of polymer gel, polymer microspheres and surfactant have the best oil displacement effect with the oil recovery increment by 21.2% after the first water flooding. In addition, using the best slug combination for two rounds flooding, the recovery factor increased by 28.2% compared with the first water flooding. This paper provides some new insights for enhanced oil recovery in strong heterogeneity reservoir.

Volunteer service activities of college students are crucial for universities to educate students on civic engagement. Education laws and scientific methods must be employed to enhance college students' willingness to volunteer and actively participate in volunteer service activities. Based on literature collection and collation, this study takes the theory of planned behaviour as the basic framework, includes the dimension of ''cognition,'' designs the questionnaire, and discusses the relationship among the relevant factors that affect the volunteer service behaviour of college students. Cognition, defined as understanding volunteerism's personal and social benefits, positively predicted attitudes, norms, and control, but not directly behaviour. A sample survey of Chinese college students and a correlation analysis of effective questionnaires demonstrate that college students' volunteer service attitudes, subjective norms, and perceived behaviour control positively impact volunteer service behaviour intention, which can predict volunteer service behaviour. College students' cognition of volunteer service significantly and positively impacts their attitude toward it, subjective norms, and perceived behavioural control but does not directly impact their volunteer service behaviour. Thus, the following aspects must be improved: guiding attitude, creating atmosphere, improving mechanisms, innovating projects, strengthening cognition, and implementing practical education. The findings of this study can help colleges and universities to clarify the impact mechanism of college students' volunteer service cognition on their volunteer service behaviour. It contributes new evidence on optimising the student environment to engage youth in building community well.

This study explored the relationship between university students' exercise efficacy and behavioral intention to participate in winter sports. Using a self-efficacy scale, exercise motivation scale, satisfaction with life scale, and the theory of planned behavior questionnaire, the intentions and behaviors of 862 university students were investigated. Based on the Health Action Process Approach (HAPA) model and customer satisfaction theories, a model of the relationship between university students' exercise efficacy and behavioral intention was constructed. The results showed that there was a significantly positive correlation between sports efficacy, motivation, satisfaction, experience perception, and behavioral intention. Sports efficacy had a direct and positive effect on university students' behavioral intention to participate in winter sports (SE = 0.052, Z = 10.673 > 1.96, P = 0.000); The indirect effect of sports efficacy on behavioral intention via motivation and satisfaction was 0.077 (SE = 0.016, Z = 4.813 > 1.96, P = 0.000); the indirect effect of sports efficacy on behavioral intention via experience perception, motivation, and satisfaction was 0.037 (SE = 0.009, Z = 4.111 > 1.96, P = 0.000). Our results not only verify and expand on the HAPA and customer satisfaction theories but also highlight the need for interventions targeting university students' behavioral intention of participating in winter sports from the perspective of improving their sports efficacy, improving the perception of winter sports participation experience, and enhancing their motivation for engaging in exercise and satisfaction with exercise.

Abstract Background As Traditional Chinese Medicine (TCM) drugs, Huangqi and Danshen are always applied in combination for spinal cord injury (SCI) treatment based on the compatibility theory of TCM. Astragalus Polysaccharidesis (APS) and Tanshinone IIA (TSIIA) are the main active ingredients of Huangqi and Danshen, and they both possess neuroprotective effects through antioxidant activities. However, low solubility and poor bioavailability have greatly limited their application. In recent years, selenium nanoparticles (SeNPs) have drawn enormous attention as potential delivery carrier for antioxidant drugs. Results In this study, TCM active ingredients-based SeNPs surface decorated with APS and loaded with TSIIA (TSIIA@SeNPs-APS) were successfully synthesized under the guidance of the compatibility theory of TCM. Such design improved the bioavailability of APS and TSIIA with the benefits of high stability, efficient delivery and highly therapeutic efficacy for SCI treatment illustrated by an improvement of the antioxidant protective effects of APS and TSIIA. The in vivo experiments indicated that TSIIA@SeNPs-APS displayed high efficiency of cellular uptake and long retention time in PC12 cells. Furthermore, TSIIA@SeNPs-APS had a satisfactory protective effect against oxidative stress-induced cytotoxicity in PC12 cells by inhibiting excessive reactive oxygen species (ROS) production, so as to alleviate mitochondrial dysfunction to reduce cell apoptosis and S phase cell cycle arrest, and finally promote cell survival. The in vivo experiments indicated that TSIIA@SeNPs-APS can protect spinal cord neurons of SCI rats by enhancing GSH-Px activity and decreasing MDA content, which was possibly via the metabolism of TSIIA@SeNPs-APS to SeCys2 and regulating antioxidant selenoproteins to resist oxidative stress-induced damage. Conclusions TSIIA@SeNPs-APS exhibited promising therapeutic effects in the anti-oxidation therapy of SCI, which paved the way for developing the synergistic effect of TCM active ingredients by nanotechnology to improve the efficacy as well as establishing novel treatments for oxidative stress-related diseases associated with Se metabolism and selenoproteins regulation.

BackgroundSpontaneous epidural hematoma (EDH) has been suggested to be associated with adjacent infective pathologies, dural vascular malformations, extradural metastases, or coagulopathies. Cryptogenic spontaneous EDH is extremely rare.Case presentationThe present study reports the case of a cryptogenic spontaneous EDH in a young woman following sexual intercourse. She was diagnosed with consecutive EDH at three different sites within a short time. After three timely operations, a satisfactory outcome was achieved.ConclusionEDH should be investigated when a young patient develops headaches and shows signs of increased ICP after emotional hyperactivity or hyperventilation. If early diagnosis and surgical decompression can be carried out in time, the prognosis would be satisfactory.