The Effect of Mindfulness on the Promotion of Graduate Students' Scientific Research Creativity: The Chain Mediating Role of Flow Experience and Creative Self-Efficacy.

Creativity is a universal core higher-order cognitive ability in the 21st century, which reflects a country's core competitiveness and soft power. Mindfulness, as an important concept in positive psychology, has also received attention for its potential effect on research creativity. Using structural equation modeling and bootstrap methods, this study investigated the relationship between mindfulness and research creativity among 1210 Chinese graduate students. Additionally, we explored the mediating effect of flow experience and creative self-efficacy in this relationship. The research results showed that mindfulness had a direct positive effect on graduate students' scientific research creativity. The mediating effect of flow experience and creative self-efficacy, as well as the chain mediating effect, were established, with the mediating ratio being 13.1% and 30.0%, respectively, and the indirect effect of chain mediating accounting for 34.1%. Interestingly, the effect mechanism at the gender level was various, with the mediating effect of mindfulness on scientific research creativity being higher among male graduate students. The results of this study revealed the mechanism of mindfulness on graduate students' scientific research creativity, offering valuable insights for enhancing their creative capabilities in the realm of scientific research.

Simultaneous determination of ten steroid hormones in animal origin food by matrix solid-phase dispersion and liquid chromatography-electrospray tandem mass spectrometry.

An UPLC-MS/MS method for determination of ten steroid hormones in animal origin food has been developed with pretreatment of the samples by matrix solid-phase dispersion (MSPD). The MSPD conditions, including the dispersing sorbents, elution solvents, ratio of sorbent to sample and the volume of the elution solvent have been investigated and optimised, and the method has been evaluated and validated. The results showed that the developed method has satisfactory linearity between the MS/MS responses of the analytes and the concentration of the steroid hormones, and the limits of the detection can reach 0.01µg/kg for most of the analytes. The spiking recoveries of the steroid hormones in chicken, pork, beef and sausage samples were between 76.8% and 98.7% with RSDs lower than 10%. The results demonstrated that the developed approach has high sensitivity and repeatability, and can rapidly determinate the trace residues of steroid hormones in complex food matrices.