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BACKGROUND Health economics is a branch of economics that focuses on the health sector and related topics both theoretically and practically. Practical medical resources can be maximized through health economics. However, little research has been conducted for comprehensive assessments of publications on health economies. OBJECTIVE This study aims to conduct a bibliometric analysis of health economics in the last decade to quantify the status and trend and aims to guide researchers to potential future research points of value from a global perspective. METHODS 4163 scientific publications were collected from the Web of Science core collection, including the Science Citation Index Expanded (SCI-Expanded) and the Social Sciences Citation Index (SSCI). Five scientometric tools (Citespacev6.1.R2, VOSviewer, Scimago Graphica, bibliometrix R-package, and Microsoft Excel 2019) were used to perform bibliometric analysis in terms of annual publications, the collaboration of authors, co-citation of authors, source, co-citation of journals, co-citation of references, and co-occurrence of keywords. RESULTS From 2012 to 2022, 4163 publications in the field of health economies were published by 21,145 authors who come from 478 institutions in 136 countries/regions. The United States and the United Kingdom produced the most publications, of which the United States maintained the dominant position in health economies, and it is the best practitioner in terms of cooperation; meanwhile, Univ Oxford of Sciences is the most productive institution. Karolinska Inst and Kings Coll London had a high centrality. Schwendicke F published the most papers, while Petrou S, Drummond M, and Augustovski F had the most co-citations. BMJ Open was the top 1 co-cited journal. In the top 10 co-cited references, five co-citation references expand on cost-effectiveness analyses which can be seen as a hotspot. The top 20 keywords, including "care," "impact," and "health," combined with the keywords clustering approach, it is concluded that "quality of life," "impact," and "care" in the process of diseases as well as "public health economy and policy" are hot spots in the field of the health economy. CONCLUSIONS Health economics research has been growing steadily over the past decade, with 2018 being a pivotal year for acceleration. The research mainly focuses on the strategic research of policy-making and resource allocation in professional disciplines. Comprehensive methodological research publications are hugely influential and complement mathematics, statistics, and economics with each other. Cost-benefit analysis is an indispensable research tool. Health economics will be a productive and efficient subject in the future.

This study aimed to better understand the links among academic attitudes, academic procrastination, metacognition, and academic achievement in mathematics among school-age children. In total, 614 urban primary school students from third to sixth grade participated in this study and were asked to complete the Attitude toward Mathematics Inventory, the Academic Procrastination Scale and the Pupils’ Metacognitive Ability in Mathematics Questionnaire. The results revealed significant correlations among the students’ mathematical attitudes, academic procrastination, mathematical metacognition and mathematical achievement. The results also revealed that the impact of mathematical attitudes on mathematical achievement was partially mediated by academic procrastination. Moreover, mathematical metacognition moderated the relation between academic procrastination and mathematical achievement among the female students but not the male students. In particular, the higher the female students’ mathematical metacognition, the weaker the effect of academic procrastination on mathematical achievement. Implications for future research and educational practice are also discussed.

Aiming at the problem of low student enthusiasm in piano teaching, this work tries to apply “Pygmalion effect” to piano teaching from the perspective of educational psychology. With experimental research as the means, 45 students are chosen from 9 classes in grade 2, 4, and 6 of a central elementary school in Beijing City, and the experimental group and the control group are set up. Questionnaire is adopted to conduct the pre-test and post-test of the experiment to analyze the factors that affect the students’ attitude towards music learning, as well as the effect of piano teaching. The results show that the Pearson correlation coefficient (two-tailed) between the piano teacher’s encouragement level and the students in the piano course is 0.427**, indicating that the piano teacher’s encouragement level and the students’ enthusiasm in the piano course are significantly correlated at the 0.01 level. The Pearson correlation coefficient (two-tailed) between student confidence level and piano learning activity is 0.276**, indicating that there is a significant correlation between self-efficacy and student piano learning enthusiasm at the 0.01 level. The pre-test and post-test results show that the students in the experimental group of each grade generally perform much better in piano learning than the students in the control group, which proves that the Pygmalion effect can play an excellent intervention role in piano teaching. In this research, the value of “Pygmalion effect” in the educational psychology of piano music education in primary schools is deeply studied to explore the possibility of a novel piano teaching model. The research results show that teacher encouragement can stimulate students’ subjective initiative and make students perform better in piano learning. This research provides reference and ideas for the combination of education and psychology related research in music classroom.

The current outbreak of coronavirus disease 2019 (COVID-19) in Wuhan, China, has posed significant threats to international health. By Feb. 20, 2020, 74 576 cases have been confirmed and over 2 118 deaths have reported in the Chinese mainland. Chinese administrations have carried out immediate and prompt measures to stop the spread of the virus. Wuhan city has been shut down since Jan. 23, and more than 30 thousand medical workers have been recruited to Hubei province. Two temporary hospitals were constructed to treat severe pneumonia patients, and 15 mobile cabin hospitals were built to treat mild pneumonia cases. Significant improvement regarding the pathogenesis, epidemiology, and diagnosis and therapy for the COVID-19 has been achieved to stop the spread of the epidemics.2019年12月下旬在中国武汉暴发的2019冠状病毒病给中国人民，乃至全球人类的健康带来严重威胁。目前感染病例数仍在不断上升，截至2020年2月20日，确诊病例已经达到74 576人，死亡病例达到2 118人。面对这一严重疫情，中国采取了史无前例的举措来控制疾病流行，如对武汉采取“封城”措施，调派全国多支医疗队，超过3万余名医务工作者支援湖北，临时建立两家医院治疗重症患者，建设15家方舱医院收治轻症患者。在病原体鉴定、流行病学、临床诊疗等多个领域进行研究，取得显著成绩，有效控制了疫情蔓延。.

This study aimed to evaluate the effects of processing methods on the content of biogenic amines in Zijuan tea by using derivatization and hot trichloroacetic acid extraction with HPLC-UV. The results showed that the most abundant biogenic amine in the original leaves was butylamine, followed by ethylamine, methylamine, 1,7-diaminoheptane, histamine, tyramine, and 2-phenethylamine. However, during the process of producing green tea, white tea, and black tea, the content of ethylamine increased sharply, which directly led to their total contents of biogenic amines increasing by 184.4%, 169.3%, and 178.7% compared with that of the original leaves, respectively. Unexpectedly, the contents of methylamine, ethylamine, butylamine, and tyramine in dark tea were significantly reduced compared with those of the original leaves. Accordingly, the total content of biogenic amines in dark tea was only 161.19 μg/g, a reduction of 47.2% compared with that of the original leaves, indicating that the pile-fermentation process could significantly degrade the biogenic amines present in dark tea.

As the only national professional association, Translators’ Association of China (TAC), along with other relevant departments and institutions, developed and issued a host of professional standards and norms of translation which, to some extent, has contributed to and will continue to push for an orderly development of language services industry in China. Nevertheless, related laws with binding force are yet to be developed to ensure the transition of the industry from “a chaotic market” to “a professional autonomy.” Interactive relations between industry norms and prospective laws are explored from the perspective of the sociology of law, and suggestions on the legislation of translation industry are accordingly presented in this chapter.