The mechanistic significance of a kinetic isotope effect on a cytochrome P‐450catalyzed reaction depends, fundamentally, on the nature of the interaction of the substrate with the active site of the enzyme as well as on the nature of the chemistry of the reaction catalyzed. Consequently, kinetic isotope effects can be used to extract information on the topology of the enzyme and the mechanism of substrate oxidation. Kinetic isotope effect studies are sometimes accompanied by ‘metabolic switching’ or a change in metabolic (...) pathway, catalyzed either by the same enzyme or by a different enzyme. For the specific case where ‘metabolic switching’ gives rise to a change in regional specificity for the cytochrome P‐450 catalyzed metabolism of a compound, this change can be explained in terms of the topological constraints on substrate binding imposed by the active site of the enzyme. (shrink)

Using a data set of 30 authentic institutional emails written by Chinese college students to their native English teacher, this article investigates the frequency and combinations of apology strategies used by English as a Foreign Language learners in natural contexts. Drawing on the coding framework adapted from previous studies, this article carries out a fine-grained analysis of apology behaviors of Chinese EFL learners when they offended their teacher for various reasons. Results revealed that the most frequently used strategy was illustrative (...) force indicating devices, and “IFIDs + taking on responsibility” ranked the most frequent combination. Among IFID sub-strategies, an expression of regret had the highest frequency. In addition, a new strategy—request for a chance to repair—was identified, which was used by Chinese learners to show their respectful and pious attitude when a more serious offense was made to their teacher. Findings from the study indicate that Chinese EFL learners tend to use culture-specific apology strategies in academic contexts. This study has pedagogical implications for EFL pragmatics instruction in Chinese contexts and also second language pragmatics instruction tailored for native Chinese learners in English-speaking countries. (shrink)

To understand the impact of the COVID-19 pandemic on postgraduate students’ internships in China, 911 students from different regions of China were surveyed through online questionnaires. Among the postgraduate students surveyed, 48.51% of which believed that the pandemic had its greatest impact on colleagues interaction, and 59.60% believed that the pandemic had a strong impact on practical skills. In total, 31.8% of postgraduate internship programs were impacted by COVID-19. The proportions of respondents having severe, moderate, and mild anxiety levels were (...) 1.42%, 4.72%, and 15.92%, respectively; and the rates of severe, moderate, and mild depression were 1.64%, 10.86%, and 21.84%, respectively. ANOVA found that major, degree type, and degree of impact of the pandemic on colleague interactions and improved practical abilities all affected postgraduate mental health. The findings suggest that the mental health of postgraduate students should be monitored during a pandemic, and targeted psychological counseling should be offered. Postgraduate internships should be emphasized as to ensure a smooth internship process during a pandemic period. Psychological counseling and assistance should be provided to those whose internships were affected by the pandemic, and programs should be set up to aid postgraduate students in adapting to the new internship and employment conditions brought on by the “new normal” of pandemic prevention and control. (shrink)

Previous literature has demonstrated that ethical leadership could predict employees’ voice behavior. However, it’s not clear how to heighten these positive effects of ethical leadership on employees’ voice behavior. Building on the AET and moral disengagement studies, we developed an integrated model. A three-wave field study investigated the relationship between ethical leadership and voice behavior by focusing on the mediating role of employees’ affective commitment and the moderating role of employees’ moral disengagement. Our matched data analysis results indicated that: employees’ (...) affective commitment partly mediated the relationship between ethical leadership and employees’ voice behavior. In addition, employees’ moral disengagement moderated the effect of ethical leadership on employees’ affective commitment and the effect of employees’ affective commitment on voice behavior, similarly, the indirect effect of ethical leadership on employees’ voice behavior via employees’ affective commitment. Theoretical and practical implications of these results are discussed. (shrink)

This meta-analysis examines the relationship between materialism and subjective wellbeing in the Chinese population. Fifty-six relevant studies covering the period from 1998 to 2022 were included in the meta-analysis. Fifty-eight independent effect sizes from a total of 52,368 participants were obtained to calculate the mean effect sizes. Materialistic values correlated with significantly lower subjective wellbeing, while the mean effect size for extrinsic aspirations was found to be not significant. The effect sizes varied across different types of wellbeing outcomes. The associations (...) were also moderated by certain demographic factors, methodological factors, publication features, and economic indicators. We discuss our limitations and the implications for future research. (shrink)

Background and ObjectivesAnxiety plays an important role in psychology. An exploration of anxiety and its associated reactions may provide insight into measures for addressing mental health problems caused by the coronavirus disease 2019 pandemic. Data from this study provide potential correlational responses to anxiety.MethodsA cross-sectional study using data collected via an online self-reported questionnaire was conducted in Japan during the COVID-19 pandemic. Using the State-Trait Anxiety Inventory, we assessed anxiety levels and explored the relationship between anxiety STAI-6 score, sources of (...) COVID-19 information, the influences of COVID-19, social anxiety symptoms, discrimination, and evaluation of the government.ResultsA total of 4,127 participants were included in the analysis. The level of anxiety was not equally distributed across the general population with respect to age, gender, educational level, occupation, income, presence of underlying disease, and location. The number of sources of information on COVID-19 had a positive correlation with the STAI-6 score. The influence of the pandemic was correlated with moderate–severe anxiety. A high level of anxiety added to social anxiety and discriminatory behavior. Being female and from a non-emergency area was related to higher STAI scores, and higher education, and income decreased the STAI score. The respondents who had a lower evaluative score of the preventive activities undertaken by the national and local governments had higher STAI-6 scores.ConclusionOur findings provide statistical evidence for the associated reaction of anxiety and that anxiety reactions may vary in predictable ways. Further studies should focus on the strategic interventions that may decrease the associated responses to anxiety, to address mental health issues due to the pandemic. (shrink)

Chinese consumers comprise a unique subculture that exerts a considerable influence on the market and are treated as a collective group by researchers. However, few studies have examined the effects of collectivism and consumer attitudinal attributes on consumer ethics. Although the practice of religion was prohibited in China before economic reforms in the late 1970s, religion remains a major factor that affects the ethical judgment of consumers. The present study, based on the Hunt–Vitell model, examines the influence of culture and (...) personal characteristics on consumer ethics. A total of 284 Chinese consumers were surveyed. Structural equation modeling was used to test hypothesized relationships in the research model. The results indicate that collectivism had a significant explanatory power for four dimensions of consumer ethical beliefs: actively benefiting from illegal activities; passively benefiting from questionable activities; actively benefiting from deceptive legal activities; and engaging in no harm and no foul activities. However, consumer attitude toward business significantly explained only the passive dimension of consumer ethics, and religious beliefs significantly explained only the active dimension of consumer ethical beliefs. (shrink)

The policy of government procurement of elderly care services has the vulnerability characteristics that all complex systems have. To maintain the policy’s robustness, this paper studies the vulnerability of government procurement of elderly care services from the perspective of complex network. Case analysis and sample statistics are used to obtain the vulnerability influencing factors of the policy. Then, complex network diagram of vulnerability influencing factors is constructed through Pajek software. The compatibility coefficient is used to investigate the network’s overall vulnerability (...) from a macro perspective. From a micro perspective, a vulnerability index of the complex network is applied to measure each node’s vulnerability value, and the vulnerability priority of the nodes is established. Results show that government purchasing power and supervisory bodies’ diversity are at the first priority. The remaining vulnerability influencing factors are at the second and the third priority. (shrink)

Due to the individual differences controlling brain-computer interfaces, the applicability and accuracy of BCIs based on motor imagery are limited. To improve the performance of BCIs, this article examined the effect of transcranial electrical stimulation on brain activity during MI. This article designed an experimental paradigm that combines tES and MI and examined the effects of tES based on the measurements of electroencephalogram features in MI processing, including the power spectral density and dynamic event-related desynchronization. Finally, we investigated the effect (...) of tES on the accuracy of MI classification using linear discriminant analysis. The results showed that the ERD of the μ and β rhythms in the left-hand MI task was enhanced after electrical stimulation with a significant effect in the tDCS group. The average classification accuracy of the transcranial alternating current stimulation group and transcranial direct current stimulation group were improved significantly compared to the pre-and pseudo stimulation groups. These findings indicated that tES can improve the performance and applicability of BCI and that tDCS was a potential approach in regulating brain activity and enhancing valid features during noninvasive MI-BCI processing. (shrink)

The fuzzy clustering algorithm has been widely used in the research area and production and life. However, the conventional fuzzy algorithms have a disadvantage of high computational complexity. This article proposes an improved fuzzy C-means algorithm based on K-means and principle of granularity. This algorithm is aiming at solving the problems of optimal number of clusters and sensitivity to the data initialization in the conventional FCM methods. The initialization stage of the K-medoid cluster, which is different from others, has a (...) strong representation and is capable of detecting data with different sizes. Meanwhile, through the combination of the granular computing and FCM, the optimal number of clusters is obtained by choosing accurate validity functions. Finally, the detailed clustering process of the proposed algorithm is presented, and its performance is validated by simulation tests. The test results show that the proposed improved FCM algorithm has enhanced clustering performance in the computational complexity, running time, cluster effectiveness compared with the existing FCM algorithms. (shrink)

Expect for formal contracts, there are informally unwritten psychological contracts in the relationship between buyer and supplier for construction projects. The PC can affect the construction project performance and even cause project failure, but its process and formation are complex and not comprehensive in existing researches. This paper analyzes the PC between buyer and supplier by using evolutionary game and repeated game to tackle this gap. The results show the following: the goodwill and interest have an important impact on PC (...) fulfillment. The PC is vulnerable; for example, once either one fails to perform PC, the other will also destroy PC, and then the construction project will enter a vicious circle. In the process of repeated game, the effect of goodwill will gradually disappear, and the interest will play a major role. If the project performance is only linked to one participant, it will lead to breach from another player. Some measures may help both sides to complete PC, such as making both sides profitable, increasing the emphasis on business reputation, and improving the relevance of construction projects performance. (shrink)

The study aimed to examine the psychometric properties of the coronavirus anxiety scale during the coronavirus disease 2019 delta epidemic. A total of 2,116 participants on the Chinese mainland completed the online survey. We employed exploratory factor analysis and confirmatory factor analysis to investigate the factor structure. The findings showed that the one-factor model of the CAS Chinese version fitted perfectly with the data. The multigroup CFAs showed the measurement invariance across gender and age groups. We also examined the CAS’s (...) internal consistency and convergent and concurrent validity. The results demonstrated that the one-factor model had good reliability and convergent and concurrent validity. Overall, according to our findings, the CAS Chinese version was reliable for measuring coronavirus anxiety during the COVID-19 delta outbreak. (shrink)

In recent studies, numerous anomalies against the weak and semi-strong-forms of efficient market hypothesis have been found insignificant after controlling the small-firm effect. We investigate whether the insider trading anomaly, a major anomaly against the strong-form of EMH, can survive after excluding small firms with a novel data set and document several new findings. We find a substantially larger number of insider purchases than sales, while the average volume of insider sales is much higher than the average volume of insider (...) purchases. Echoing recent US studies, we find that insider sales generate more abnormal returns than insider purchases do. We find much lower abnormal returns from insider trading than documented in the literature and the associated trading costs, which suggests that the market efficiency of individual stocks may depend on their sizes, and even the strong-form of EMH holds to a larger extent than previously recognized. (shrink)

Drawing on the cognitive evaluation theory, we proposed a homologous multilevel model to explore how ethical leadership influenced employees’ innovative work behavior through the mediation of intrinsic motivation at both group and individual level. With questionnaires rated by 302 employees from 34 work units of two companies in the mainland of China, we conducted multilevel analysis to examine our hypotheses. The results showed that individual innovative work behavior was positively related to both individual perception of ethical leadership and group ethical (...) leadership, while individual intrinsic motivation mediated the two relationships. Moreover, group intrinsic motivation mediated the relationship between group ethical leadership and innovative work behavior. The theoretical and practical implications were further discussed. (shrink)

Conflicts in land exploration are incisive social problems which have been the subject in many studies. Risk assessment of land conflicts is effective to resolve such problems. Specifically, fuzzy mathematics and the analytic hierarchy process were combined together to evaluate risk in land conflicts in our work, which is proved useful to solve uncertainty and imprecision problems. Based on the analysis of the principles for the risk assessment of a land conflicts index system, a set of risk assessment indexes using (...) the fuzzy analytic hierarchy process was presented. The results show that the overall risk is at medium level, and the risk of the feasibility index and controllability index need to be paid more attention to. The contribution of this article is reflected in two aspects: the application of FAHP in risk assessments of land conflicts is effective and valid; it is helpful for governments to establish a stricter management system of work safety for conflicts in land exploration based on the risk assessment results. (shrink)

To evaluate the performance of rural land circulation mode through the analytic network hierarchy process, based on the results of the performance evaluation with analytic network process, we implemented efficiency analysis on five types of rural land circulation mode by two improved efficiency analytic procedures. Finally, we implemented sensitivity analysis for each criterion layer of the evaluation index system with the performance evaluation data, interpreted five types of rural land circulation mode from three perspectives including benefits, costs, and risks with (...) sensitivity analysis results, and drew related conclusions including higher revenue which will lead to smaller difficulty of the rural land circulation. Cost variables were negative variables of the selected rural land circulation mode, and higher risk would lead to the greater difficulty of rural land circulation and related conclusions. (shrink)

Push-pull theory, consumer decision-making models and rational choice theory are commonly used to explain international student mobility. Despite their merits, the individual’s motivation to study abroad is ignored. Based on two motivation theories—expectancy-value theory and self-determination theory, this study examines whether students’ intention to study abroad originates from the students themselves or compromises social pressure and how the external factors defined in push-pull theory work with these motivations to affect their decision-making. A quantitative study was conducted with a sample size (...) of 736 international students in China. The findings show that the decision to study abroad is a highly subjective and intrinsically driven behavior in which realizing one’s self-worth or fulfilling one’s purpose of life plays the most significant role. Making a decision needs a “cost-benefits calculus,” but the utility value of study abroad was positioned behind attainment value and identified motivation. The heterogeneity of international students’ motivation was also differentiated by both their gender and their parents’ educational backgrounds. (shrink)

本书分为“我与《周易》”、“《周易》之义理”、“历代易学研究”、“韩国二李易学研究”、“《周易》与史学”五编,基本概括了吕绍纲先生易学研究的各个方面,浓缩了吕绍纲先生易学研究的精华。.

Lun Xun's collected anti-Confucianist writings.