Purpose: Postoperative nausea and vomiting (PONV) is a common complication that brings discomfort to patients. Many researchers believe chewing gum can promote the recovery of postoperative gastrointestinal function. However, it is unclear whether chewing gum could reduce the incidence of PONV. This paper conducted a meta-analysis by systematically reviewing all literature to explore the relationship between chewing gum and PONV. Method: We searched in eight major databases for all clinical trials exploring chewing gum and PONV. Statistical analyses were conducted by Stata and Revman Software. Results: In all, there are 36 eligible studies for our meta-analysis. We found a significant difference between the chewing gum group and the control group on the incidence of PONV (OR: 0.48; 95%CI: 0.29 to 0.77; I2:49.0%; p<.001), on the incidence of nausea (OR:0.66; 95%CI: 0.51 to 0.84; I2: 15.0%; p<.001), on the incidence of vomiting (OR:0.58; 95%CI: 0.43 to 0.80; I2: 20.0%; p<.001). In subgroup meta-analysis, there is remarkable difference merely in gynecological and obstetrics surgery on the incidence of PONV (OR: 0.43; 95%CI: 0.25 to 0.73; I2:17.0%; p=.002), on the incidence of nausea (OR: 0.56; 95%CI: 0.37 to 0.84; I2:34.0%; p=.005), on the incidence of vomiting (OR: 0.47; 95%CI: 0.27 to 0.81; I2:39.0%; p=.006). No obvious difference between the two groups was found in other surgery. Besides, there is no difference between the two groups in the use of antiemetics. Conclusion: Chewing gum could decrease the incidence of PONV, especially in gynecology and obstetrics surgery.

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Recently, parental education anxiety has gradually become a hot social issue. Since the implementation of the Double Reduction Policy, parents' children's educational anxiety has shown new characteristics.In order to understand the current situation of family education anxiety after the implementation of the Double Reduction Policy and to analyze the characteristics of parents' anxiety with different Demography characteristics, a self-designed questionnaire was used to distribute questionnaires and collect data through the questionnaire star platform. We randomly select some parents of primary and secondary schools in Hailar, Chifeng, and Tongliao as the survey subjects for testing. We investigated the parents' view of the Double Reduction Policy, the impact of the Double Reduction Policy on families, and the level of family education anxiety in three dimensions and used the online platform SPSSUA (Version 22.0) to conduct data analysis. Among the 364 households surveyed, about 56% of parents admitted to having children's educational anxiety. There were significant differences in the three dimensions of the survey between the two groups with different self-awareness. Five factors, including children's academic years, academic performance ranking status, type of family location, average monthly income level of families, and parents' weekly work hours, impact group anxiety. Among them, the ranking status of children's academic performance significantly impacts parents' educational anxiety state.

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This paper discusses the reform and practice of Innovation and entrepreneurship education for safety engineering majors under the background of new engineering, considering the demand for safety engineering talents under the new situation and the requirements of the construction of new engineering disciplines. Taking the reform of Innovation and entrepreneurship education of safety engineering majors in our university in recent years as an example, through the construction of high-quality teaching staff for Innovation and entrepreneurship education, we built a "school， enterprise， research institution" for the integration of the innovation and entrepreneurship practice training platform, form a " comprehensive， three-dimensional， diversified" innovation entrepreneurship education system, innovation entrepreneurship education into the university training scheme, in the end, summarized the practical application results of analysis for nearly two years as well.

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The literature on the internationalization of curricula is rich, yet research on how a curriculum within scientific and engineering disciplines is internationalized at the faculty level is limited. This study intended to describe the process of internationalizing curricula, identify approaches undertaken by the faculty, and explore challenges confronted by the faculty. A case study and semi-structured interviews were conducted. The findings of this study will provide higher education internationalization management and professionals practical guidance into the internationalization of curricula activities.

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