Micro classes as a primary school–level mathematics education response to COVID-19 pandemic in China: students’ degree of approval and perception of digital equity

Educational Studies in Mathematics - The article introduces a mathematics education measure in response to the COVID-19 epidemic in China and explores students’ degree of approval...     

中德林地物权变动制度对比研究

中德两国的林地物权变动制度设计相同之处在于公法色彩较为浓厚。其区别在于:在登记制度上,德国实行法院下属登记所负责不动产登记,但部分州单设森林登记,而中国森林登记机关为林业主管机关;在变动模式上,德国采耿‘实质审查+登记要件主义+无因”,而中国采用“实质审查+对抗主义”模式。变动制度的不同,是由两国国情决定的。     

论社会发展与人的全面发展

人的全面发展是一个逐步渐进，不断提高，不断完善的历史过程，是人类社会历史发展的必然趋势，也是社会发展的最终目标和最高理想。     

超重力联合技术在焦化制酸尾气中的应用

分析了某焦化厂制硫酸装置尾气中二氧化硫和硫酸雾排放现状。采用超重力联合技术,在超重力脱硫机前端增加钠碱复喷脱硫,后端增加湿式电除雾净化的组合方式来净化制酸尾气。制酸尾气通过烟道进入钠碱复喷吸收器,尾气中50%左右的SO2被碱液吸收,经初脱后的尾气进入超重力脱硫机,尾气中SO2被进一步充分吸收,尾气再经电除雾器除酸雾后从排气筒排放。采用此联合技术大大提高了制酸尾气中SO2和硫酸雾的净化效率,减少了对环境的排放和污染,既满足了环保要求,又确保了员工的职业健康安全,在环保和安全生产方面都具有积极作用。     

Parents' Perceived Discrimination and Adolescent Adjustment in Chinese American Families: Mediating Family Processes

Parental discriminatory experiences can have significant implications for adolescent adjustment. This study examined family processes linking parental perceived discrimination to adolescent depressive symptoms and delinquent behaviors by using the family stress model and incorporating family systems theory. Participants were 444 Chinese American adolescents (M_age.wave1 = 13.03) and their parents residing in Northern California. Testing of actor–partner interdependent models showed a significant indirect effect from earlier paternal (but not maternal) perceived discrimination to later adolescent adjustment through paternal depressive symptoms and maternal hostility toward adolescents. The results highlight the importance of including both parents and examining actor and partner effects to provide a more comprehensive understanding of how maternal and paternal perceived discrimination differentially and indirectly relate to adolescent adjustment.     

Attitudes and aspirations regarding engineering among Chinese secondary school students: comparisons between industrialising and post-industrial geo-engineering regions of Mainland China and Hong Kong

School-based pipelines/routes for university and technical engineering education are recognised as important for economic development and the high-school years are critical for shaping students’ career aspirations and attitudes. This study examined a range of attitudes/experiences on the aspirations of secondary students to pursue engineering education and vocation. Experiential/attitudinal aspects covered demographic characteristics, family/school support, practical learning experiences, curricular/extra-curricular experiences, attitudes, perceptions and engineering-efficacy that may affect aspirations. A validated questionnaire capturing these variables was administered to respective samples of secondary school students from four Chinese geo-engineering regions (Beijing, Guangzhou, Hong Kong and ShanXi; 5965 students) that represent differing degrees of industrialisation. Comparative analyses across regions show ‘doing’ engineering is key to motivating students’ aspirations; while regional variations suggest that schooling and family factors are generally more significant in industrialising Mainland cities, and extracurricular opportunities and personal factors are more significant for students in post-industrial Hong Kong.     

Character of HBV （hepatitis B virus） polymerase gene rtM204V／I and rtL180M mutation in patients with lamivudine resistance

Objectives: To investigate the relationship between HBV (hepatitis B virus) polymerase gene 180 and 204 sites mutation and lamivudine resistance. Methods: One hundred forty-one patients with lamivudine resistance after lamivudine treatment and 60 chronic hepatitis B patients without lamivudine treatment were enrolled in this study. The serum HBV DNA mutation was analyzed by sequence detection via polymerase chain reaction (PCR). The sequences of the same patient were analyzed before and after lamivudine treatment. Results: One hundred and nine lamivudine resistance patients had HBV YMDD (tyrosine-methionine-aspartate-aspartate) mutation. Among them, 45 patients had rtL180M/M204V mutation (41.28%), 28 patients had rtL 180M/M204I mutation (25.70%) and 36 patients had rtM204I mutation (33.02%). There were 6 patients with rtL180M mutation in 32 lamivudine resistance patients. Sixty chronic hepatitis patients without lamivudine treatment had no mutations. Conclusions: HBV mutations, which play an important role in lamivudine resistance usually locate at polymerase gene 204 site; 180 site mutation was also observed in these patients. Evaluation of the anti-virus therapy by surveillance of the two sites mutations is of importance.     

行政复议不予受理的救济

当行政复议机关对行政复议不予受理时，如何保护行政相对人的合法权益就越显重要。本文就行政复议不予受理的救济方式如何实施进行探讨。     

国际反倾销的特点及我国的对策

随着经济的发展 ,反倾销在世界范围内蔓延开来。中国的出口产品也毫不例外地遭到反倾销调查。针对这种情况 ,中国应采取一些对策 ,促进经济的发展     

浅谈学校的管理艺术

文章从心理学的视角，通过从用人、决策、使用权力、协调关系及时间分配等五方面论述学校的主要管理者在管理指挥的过程中其领导艺术的重要性，并提出了一些建设性的解决策略。