Development Assessment of Higher Education System Based on TOPSIS-Entropy, Hopfield Neural Network, and Cobweb Model.Xian-Bei Liu,Yu-Jing Zhang,Wen-Kai Cui,Li-Ting Wang &Jia-Ming Zhu -2021 -Complexity 2021:1-11.detailsThis paper first extracted 11 indicators from four aspects of infrastructure, educational equity, teaching quality, and scientific research level and established a multidimensional higher education evaluation system. After that, according to TOPSIS and the entropy method, a comprehensive score of the development of higher education was obtained, and a comprehensive index of higher education was proposed. According to the level of the score, we divide the development status into 5 categories, and use discrete Hopfield neural network for verification. In addition, (...) we applied the model to many countries and chose Vietnam to conduct an in-depth analysis of the model, including reforming policies and evaluating policy effects based on cobweb model. Finally, we found that the application of the model is very universal, but in reality the reform is very difficult. (shrink)
Effectiveness of Dance-Based Interventions on Depression for Persons With MCI and Dementia: A Systematic Review and Meta-Analysis.Ying Wang,Mandong Liu,Youyou Tan,Zhixiao Dong,Jing Wu,Huan Cui,Dianjun Shen &Iris Chi -2022 -Frontiers in Psychology 12.detailsBackground: There is a growing need to offer appropriate services to persons with mild cognitive impairment and dementia who are faced with depression and anxiety distresses beyond traditional pharmacological treatment. Dance-based interventions as multi-dimensional interventions address persons' physical, emotional, social, and spiritual aspects of well-being. However, no meta-analysis of randomized controlled treatment trials has examined the effectiveness of dance-based interventions on depression and anxiety among persons with MCI and dementia, and the results of RCTs are inconsistent. The study aimed to (...) examine the effectiveness of dance-based interventions on depression and anxiety among persons with MCI and dementia.Methods: A systematic review with meta-analysis was conducted. The inclusion criteria were: population: people of all ages with MCI and dementia; intervention: dance-based interventions; control group: no treatment, usual care, or waiting list group; outcome: depression and anxiety; study design: published or unpublished RCTs. Seven electronic databases were searched from 1970 to March 2021. Grey literature and reference lists from relevant articles were also searched and reviewed. The Cochrane “Risk of Bias” tool was used to assess study quality. RevMan 5.4 was used for meta-analysis and heterogeneity was investigated by subgroup and sensitivity analysis. GRADE was applied to assess the evidence quality of depression and anxiety outcomes.Results: Five randomized controlled trials were identified. Sample sizes ranged from 21 to 204. The risk of bias was low, except for being rated as high or unclear for most included studies in two domains: allocation concealment, blinding participants and personnel. Meta-analysis of depression outcome showed no heterogeneity, indicating that the variation in study outcomes did not influence the interpretation of results. There were significant differences in decreasing depression in favor of dance-based interventions compared with controls [SMD = −0.42, 95% CI, p< 0.0001] with a small effect size ; Compared with the post-intervention data, the follow-up data indicated diminishing effects. Dance-based interventions were more effective in reducing depression for persons with dementia than with those having MCI, and were more effective with the delivery frequency of 1 h twice a week than 35 min 2–3 times a week. Also, one included RCT study showed no significant benefit on anxiety rating scores, which demonstrated small effect sizes at 6 weeks and 12 weeks. GRADE analysis indicated the evidence quality of depression was moderate, and the evidence quality of anxiety was low.Conclusions: Dance-based interventions are beneficial to alleviate depression among persons with MCI and dementia. More trials of high quality, large sample sizes are needed to gain more profound insight into dance-based interventions, such as their effects of alleviating anxiety, and the best approaches to perform dance-based interventions. (shrink)
Is That a Genuine Smile? Emoji-Based Sarcasm Interpretation Across the Lifespan.Jing Cui,Herbert L. Colston &Guiying Jiang -2024 -Metaphor and Symbol 39 (3):195-216.detailsEmoji appear to be an important cue to judge whether a statement is sarcastic in computer-mediated communication. In this study, we investigated whether the smiling emoji, an indicator of sarcastic intention in the Chinese culture, exerts an influence on sarcasm interpretation across the lifespan. Statements accompanied with or without a smiling emoji were compared in unambiguous (Experiment 1) and ambiguous (Experiment 2) contexts. The results of Experiment 1 illustrated that for teenagers and the 20-year-olds the smiling emoji enhanced the perceived (...) sarcasm of sarcastic statements significantly. However, there was no difference in interpreting sarcastic statements with or without a smiling emoji in other age groups. Experiment 2 replicated the results of Experiment 1. We found both teenagers and the 20-year-olds were more likely to arrive at a sarcastic interpretation of the ambiguous statement followed by a smiling emoji, which were less frequent in participants aged in their 30s, 40s, 50s and individuals over 60 years old. This might be because people of varying ages differ in decoding the emotions of the emoji. Age-related differences in the use of sarcasm and participants’ experiences with using emoji might be possible factors that were closely related to the interpretation of emoji-based sarcasm. (shrink)
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Development and Validation of an Unethical Professional Behavior Tendencies Scale for Student Teachers.Jing Wang,Xin-Qiang Wang,Jia-Yuan Li,Cui-Rong Zhao,Ming-fan Liu &Bao-Juan Ye -2021 -Frontiers in Psychology 12.detailsTeacher’s unethical professional behaviors affect students’ physical and mental health. Prevention should start with student teachers, but empirical research is lacking in China. This study surveyed over 2,000 student teachers from China to examine the psychometric properties of a student teachers’ unethical professional behavior tendencies scale which revised by primary and secondary school teachers’ unethical professional behavior tendencies scale. Exploratory and confirmatory factor analysis confirmed that a bi-factor model fit the data best. The final student teachers’ unethical professional behavior tendencies (...) scale comprised four subscales, including a general factor and four special factors. The student teachers’ unethical professional behavior tendencies scale correlated negatively with their professional ethical values and positively with perceived frequency of unethical professional behaviors of college teachers around them. The data supported the scale’s measurement invariance across gender, and male student teachers scored significantly higher on unethical professional behavior tendencies than female student teachers. The findings suggest that the student teachers’ unethical professional behavior tendencies scale is a useful instrument for assessing student teachers’ unethical professional behaviors in China. (shrink)
Kua shi ji di hui xiang: Makesi xue shuo dijing cui ji qi xian dai yi yi = Kuashijide huixiang.Kuiliang Zhang (ed.) -1993 - Ha'erbin: Heilongjiang jiao yu chu ban she.details张奎良(1937- ),辽宁新民人,中国马克思主义学会常务理事,东北地区马哲史学会会长等.
Si xiang, li shi yu wen hua ping lun.Hailin Zheng -2010 - Changsha Shi: Hunan ren min chu ban she.detailsBen shu wei Xianggang Zhong wen da xue Ya Tai yan jiu suo yan jiu yuan Zheng Hailin bo shi suo zhu, ji jie qi fang xue dong xi fang shi nian suo zhuan xie wen zhijing cui er cheng, nei rong fen wei si xiang, li shi ren wu, he wen hua ping lun san bu fen. Guan dian zheng que, ke guan gong zheng, fu yu chuang yi.
Dan xuan yu chen ju: Tang Song dao jiao si xiang yu she hui yan jiu.Lesong Cheng -2021 - Beijing: Zong jiao wen hua chu ban she.detailsYijing dian jie du he guan nian quan shi wei ji nen jin lu de si xiang shi yan jiu, yu wei rao xin yang yu she hui shen g huo de hu dong zhan kai de she hui shi yan jiu ke yi bei shi zuo zong jiao li shi yan jiu de liang ge zhi dian. Xin yang cong dai dou shi yi ti liang mian de: shi zhong guan qie chao yue de zhi qu bi (...) ran shi de xin yang yi mou zhong si xiang huo guan nian de fang shi fou ding huo shu li ri chang sheng huo he shi su shi jie, que li du te de yu zhou zhi xu yu xin yang jia zhi; yu zhi xiang dui, xin yang shi jian de zhan kai you shi yu ri chang sheng huo xu yu bu li de, cong xian shi de yi yi shang shuo, yi zhong chun cui qie tuo li le shi su sheng huo de xin yang shi nan yi xiang xiang de. Jiu dao jiao er yan, xiu zhen deng xian de xuan si yu rang zai qi fu de shi jian shi bu ke fen ge de, ke yi jie lu de gui zhi yu du die zhang ji de lu fa ye shi bing xing bu bei de. Ru guo yao chang shi li jie mou yi ge li shi shi qi zhong de dao jiao xin yang, jiu xu yao jie he qi shi dejing dian wen xian yu she hui sheng huo. Jian ci, ben shu yi Tang Song shi qi de dao jiao xin yang wei zhu ti, fen bie cong Sui Tang shi qi de dao jiao xin yang si xiang yu Tang Song shi qi de lu fa ji xin yang guan lian liang ge shi jiao zhan kai zhuan ti yan jiu, zhan shi shang shu yi ti liang mian de xin yang shi kuang jia. (shrink)
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Sun Ying'ao quan ji.Ying'ao Sun -2016 - Guiyang Shi: Guizhou min zu chu ban she. Edited by Guangsheng Zhao.details1. Huai hai yi tan ; Si shu jin yu -- 2. Zuo cui ti ping -- 3. Zhuang yi yao shan -- 4. Sun Shanfu du xue wen ji ; Xue kongjing she shi gao ; Lun xia xi guan shi zhu sheng xi wen ; You xin yao cao ; Ji yi ; Sun Ying'ao bei ke ji yi.
For Whom Does Determinism Undermine Moral Responsibility? Surveying the Conditions for Free Will Across Cultures.Ivar R. Hannikainen,Edouard Machery,David Rose,Stephen Stich,Christopher Y. Olivola,Paulo Sousa,Florian Cova,Emma E. Buchtel,Mario Alai,Adriano Angelucci,Renatas Berniûnas,Amita Chatterjee,Hyundeuk Cheon,In-Rae Cho,Daniel Cohnitz,Vilius Dranseika,Ángeles Eraña Lagos,Laleh Ghadakpour,Maurice Grinberg,Takaaki Hashimoto,Amir Horowitz,Evgeniya Hristova,Yasmina Jraissati,Veselina Kadreva,Kaori Karasawa,Hackjin Kim,Yeonjeong Kim,Minwoo Lee,Carlos Mauro,Masaharu Mizumoto,Sebastiano Moruzzi,Jorge Ornelas,Barbara Osimani,Carlos Romero,Alejandro Rosas López,Massimo Sangoi,Andrea Sereni,Sarah Songhorian,Noel Struchiner,Vera Tripodi,Naoki Usui,Alejandro Vázquez del Mercado,Hrag A. Vosgerichian,Xueyi Zhang &Jing Zhu -2019 -Frontiers in Psychology 10.detailsPhilosophers have long debated whether, if determinism is true, we should hold people morally responsible for their actions since in a deterministic universe, people are arguably not the ultimate source of their actions nor could they have done otherwise if initial conditions and the laws of nature are held fixed. To reveal how non-philosophers ordinarily reason about the conditions for free will, we conducted a cross-cultural and cross-linguistic survey (N = 5,268) spanning twenty countries and sixteen languages. Overall, participants tended (...) to ascribe moral responsibility whether the perpetrator lacked sourcehood or alternate possibilities. However, for American, European, and Middle Eastern participants, being the ultimate source of one’s actions promoted perceptions of free will and control as well as ascriptions of blame and punishment. By contrast, being the source of one’s actions was not particularly salient to Asian participants. Finally, across cultures, participants exhibiting greater cognitive reflection were more likely to view free will as incompatible with causal determinism. We discuss these findings in light of documented cultural differences in the tendency toward dispositional versus situational attributions. (shrink)
Be-ing (you 有) and non-be-ing (wu 無) in the Dao DeJing.Jing Liu -2017 -Asian Philosophy 27 (2):85-99.detailsThis essay questions the meaning of be-ing and non-be-ing in the DDJ with regard to the root-source meaning of dao. I first explore the meaning of dao as the dark non-be-ing, revealing the connotations of the distinction between dao and things by comparison with some forms of Western metaphysics. The meaning of non-be-ing is elaborated in terms of the dynamic meanings of xu 虚 and chong 沖; The play between be-ing and non-be-ing is explored through the lens of yin and (...) yang qi thinking. Qi thinking determines the mutually manifest and mutually interpretive characteristic of be-ing and non-be-ing. Be-ing and non-be-ing thus understood is an ever-flowing and mutually transforming process that penetrates the different levels of dao, things and humans. In the last part I investigate the meaning of “Be-ing comes from non-be-ing”. (shrink)
Implementation of network information security monitoring system based on adaptive deep detection.Lavish Kansal,Abdullah M. Baqasah,Roobaea Alroobaea &Jing Niu -2022 -Journal of Intelligent Systems 31 (1):454-465.detailsFor a better detection in Network information security monitoring system, the author proposes a method based on adaptive depth detection. A deep belief network was designed and implemented, and the intrusion detection system model was combined with a support vector machine. The data set adopts the NSL-KDD network communication data set, and this data set is authoritative in the security field. Redundant cleaning, data type conversion, normalization, and other processing operations are performed on the data set. Using the data conversion (...) method based on the probability mass function probability mass function coding, a standard data set with low redundancy and low dimensionality can be obtained. Research indicates that when the batch size reaches 64, the accuracy of the test set reaches its maximum value. As the batch size increases, the accuracy first increases and then decreases. When the batch size continues to increase, the model will inevitably fall into the local optimal state, resulting in the degradation of the detection performance of the system. In terms of the false alarm rate, the DBN-SVM model is also the highest; however, it is only 10.73%. Under the premise of increasing the detection rate, the false alarm rate is improved; for the overall detection performance of the model, it is within an acceptable range. In terms of accuracy, the DBN-SVM model also scored the highest. The accuracy rate is the ratio of normal and correct classification for intrusion detection. It can explain the detection ability of the model. In summary, the overall detection ability of the DBN-SVM model is the best. The good classification ability to use SVM is proved, and the classification of low-dimensional features is expected to increase the detection rate of the system. (shrink)
Tertiary hospital nurses’ ethical sensitivity and its influencing factors: A cross-sectional study.Xue Lei Chen,Fei Fei Huang,Jie Zhang,Juan Li,Bi Yun Ye,Yun Xiang Chen,Yuan Hui Zhang,Fang Li,Chun Fang Yu &Jing Ping Zhang -2022 -Nursing Ethics 29 (1):104-113.detailsBackground: High ethical sensitivity positively affects the quality of nursing care; nevertheless, Chinese nurses’ ethical sensitivity and the factors influencing it have not been described. Research objectives: The purpose of this study was to describe ethical sensitivity and to explore factors influencing it among Chinese-registered nurses, to help nursing administrators improve nurses’ ethical sensitivity, build harmony between nurses and patients, and promote the patients’ health. Research design: This was a descriptive, cross-sectional study. Participants and research context: We recruited 500 nurses (...) from several departments in three tertiary hospitals. The Chinese Moral Sensitivity Questionnaire–Revised version and the Jefferson Scale of Empathy-Health Professionals were used to assess the nurses’ ethical sensitivity and empathy ability, respectively. Fifteen sociodemographic variables were included in the questionnaires. Ethical considerations: Informed consent was obtained from the participants regarding participation and data storage and handling. This program has been examined and supported by the research center of medical ethics and professional ethics of Guilin Medical University. The Approval No. was 2016RWYB04. The whole research process is conducted strictly according to ethical requirements. Results: The valid response rate was 84.40% ( n = 422). The total score of Chinese Moral Sensitivity Questionnaire–Revised was 35.82 ± 8.17. The subscale scores of moral responsibility and strength and sense of moral burden were 21.50 ± 4.91 and 14.33 ± 3.98, respectively. Significant differences were found among age groups, gender, years of working, category of profession, and quality of family communication regarding nurses’ ethical sensitivity ( p< 0.05). Regression analysis showed that the main factors influencing nurses’ ethical sensitivity were gender, years of working, quality of family communication, career satisfaction, and empathic ability. Discussion: Our findings suggest that Chinese nurses’ ethical sensitivity in tertiary hospitals in Guilin is at a medium level. Conclusion: The director of nursing schools and hospitals in China should pay attention to nurses’ ethical sensitivity and should intensify education and training to improve nurses’ ethical sensitivity. Further studies should focus on interventions aimed at improving Chinese nurses’ ethical sensitivity. (shrink)
The Role of Entrepreneurship Policy in College Students’ Entrepreneurial Intention: The Intermediary Role of Entrepreneurial Practice and Entrepreneurial Spirit.Yangjie Huang,Lanyijie An,Jing Wang,Yingying Chen,Shuzhang Wang &Peng Wang -2021 -Frontiers in Psychology 12.detailsEntrepreneurship is a sustainable development tool that supports the alleviation of poverty and unemployment. Focusing on the promotion of entrepreneurial intention under the background of entrepreneurship education, this study used a structural equation model to examine the role of entrepreneurship policy, entrepreneurial practice, and entrepreneurial spirit on the EI of 384 college students from 22 universities in Guangdong Province. The test results show that there are significant positive correlations between EPo and EI; EPo and EPr; EPo and ES; and EPr (...) and EI. They also support the hypothesis that EPr enhances the positive effect that EPo has on EI. This study puts forth measures to improve EI and makes contributions to future research on EE. (shrink)
Cross-cultural validation of the moral sensitivity questionnaire-revised Chinese version.Fei Fei Huang,Qing Yang,Jie Zhang,Qing Hua Zhang,Kaveh Khoshnood &Jing Ping Zhang -2016 -Nursing Ethics 23 (7):784-793.detailsBackground: Ethical issues pose challenges for nurses who are increasingly caring for patients in complicated situations. Ethical sensitivity is a prerequisite for nurses to make decisions in the best interest of their patients in daily practice. Currently, there is no tool for assessing ethical sensitivity in Chinese language, and no empirical studies of ethical sensitivity among Chinese nurses. Research objectives: The study was conducted to translate the Moral Sensitivity Questionnaire–Revised Version (MSQ-R) into Chinese and establish the psychometric properties of the (...) Moral Sensitivity Questionnaire–Revised Version into Chinese (MSQ-R-CV). Research design: This research was a methodological and descriptive study. Participants and research context: MSQ-R was translated into Chinese using Brislin’s model, and the Translation Validity Index was evaluated. MSQ-R-CV was then distributed along with a demographic questionnaire to 360 nurses working at tertiary and municipal hospitals in Changsha, China. Ethical considerations: This study was approved by the Institutional Review Boards of Yale University and Central South University. Findings: MSQ-R-CV achieved Cronbach’s alpha 0.82, Spearman-Brown coefficient 0.75, significant item discrimination (p< 0.001), and item-total correlation values ranging from 0.524 to 0.717. A two-factor structure was illustrated by exploratory factor analysis, and further confirmed by confirmatory factor analysis. Chinese nurses had a mean total score of 40.22 ± 7.08 on the MSQ-R-CV, and sub-scores of 23.85 ± 4.4 for moral responsibility and strength and 16.37 ± 3.75 for sense of moral burden. Discussion: The findings of this study were compared with studies from other countries to examine the structure and meaningful implications of ethical sensitivity in Chinese nurses. Conclusion: The two-factor MSQ-R-CV (moral responsibility and strength, and sense of moral burden) is a linguistically and culturally appropriate instrument for assessing ethical sensitivity among Chinese nurses. (shrink)
Abusive Supervision, Leader-Member Exchange, and Creativity: A Multilevel Examination.Changqing He,Rongrong Teng,Liying Zhou,Valerie Lynette Wang &Jing Yuan -2021 -Frontiers in Psychology 12.detailsDespite the growing attention on the topic of abusive supervision, how abusive supervision affects individual and team creativity have not yet been thoroughly investigated. Drawn from the perspective of leader-member exchange (LMX), the current study develops a multilevel model to describe the relationships between abusive supervision and creativity at both team and individual levels, with a focus on the roles played by team-level leader-member exchange (TLMX) and LMX differentiation (DLMX). Based on data collected from 319 team members and their team (...) leaders in 71 teams, the results show that abusive supervision has a negative relationship with TLMX, a practice that is conducive to both team and individual creativity. At the team level, the negative relationship between abusive supervision and TLMX is lessened by a higher level of DLMX. In addition, the positive relationship between TLMX and team creativity is weakened by a higher level of DLMX. Theoretical and practical implications of the findings are discussed. (shrink)
Effect Mechanism of Error Management Climate on Innovation Behavior: An Investigation From Chinese Entrepreneurs.Yuting Chen,Jiangru Wei,Jing Zhang &Xue Li -2021 -Frontiers in Psychology 12.detailsErrors are inevitable in an increasingly risky and dynamic entrepreneurial environment. The error management and the error climate perceived by the members are crucial to the subsequent innovation behaviors. Maintaining and improving the psychological capital of entrepreneurs under errors is not only the psychological activities of entrepreneurs themselves but also a critical management process in which an organization can influence the psychological factors and behaviors of entrepreneurs through error management climate. In the context of Chinese culture, this study explores the (...) influence of error management climate on entrepreneurial self-efficacy and innovation behavior under the boundary condition of Zhongyong thinking. Two hundred ninety samples of Chinese entrepreneurs are empirically analyzed in this study, and results show that: error management climate and entrepreneurial self-efficacy have significant positive effects on entrepreneurs’ innovation behavior; entrepreneurial self-efficacy mediates the relationship between error management climate and innovation behavior; and Zhongyong thinking plays moderating roles in the process of error management climate influencing innovation behavior. This study complements the entrepreneurship literature with its focus on error management climate as an essential antecedent of entrepreneurial self-efficacy, and promotes an understanding of how Chinese practitioners promote innovative behavior from a cultural perspective. (shrink)
Makesijing shen sheng chan li lun yan jiu.ZhongqiangJing -2004 - Beijing: Zhongguo she hui ke xue chu ban she.details本书针对传统哲学教科书理论体系的缺陷,对马克思精神生产理论产生的理论来源、现实基础、思想进程、逻辑发展及其在马克思主义哲学理论体系中的重要地位进行了论述等。.
Cultural adaptation to environmental change versus stability.Lei Chang,Bin-Bin Chen &HuiJing Lu -2013 -Behavioral and Brain Sciences 36 (5):485-486.detailsThe target article provides an intermediate account of culture and freedom that is conceived to be curvilinear by treating economic development not as an adaptive outcome in response to climate but as a cause of culture parallel to climate. We argue that the extent of environmental variability, including climatic variability, affects cultural adaptation.
Asynchronous Introspection Theory: The Underpinnings of Phenomenal Consciousness in Temporal Illusion.Shuo Chen,Changle Zhou,Jing Li &Hua Peng -2017 -Minds and Machines 27 (2):315-330.detailsA new theory of the neuropsychological underpinnings of phenomenal consciousness, “asynchronous introspection theory,” is proposed that emphasizes asynchrony between different neurocognitive processes. We provide a detailed explanation of how a mind might arrive at a cognitive structure isomorphic to the cognitive structure that would emerge from experiential qualia. The theory suggests that a temporal illusion is created because of the mismatch between the real physical timeline and the neurally constructed timeline composed inside a person’s brain. This temporal illusion leads to (...) the origination of a thought that one has had a certain experience wherein the thought and the feeling seem synchronous to the person but, in fact, are not. This leads to the thought, “I had a feeling.” The theory is elaborated via a metaphorical “robot supervisor model” and is shown to explain many current problems of phenomenal consciousness. (shrink)
LPR-MLP: A Novel Health Prediction Model for Transmission Lines in Grid Sensor Networks.Yunliang Chen,Shaoqian Chen,Nian Zhang,Hao Liu,HongleiJing &Geyong Min -2021 -Complexity 2021:1-10.detailsThe safety of the transmission lines maintains the stable and efficient operation of the smart grid. Therefore, it is very important and highly desirable to diagnose the health status of transmission lines by developing an efficient prediction model in the grid sensor network. However, the traditional methods have limitations caused by the characteristics of high dimensions, multimodality, nonlinearity, and heterogeneity of the data collected by sensors. In this paper, a novel model called LPR-MLP is proposed to predict the health status (...) of the power grid sensor network. The LPR-MLP model consists of two parts: local binary pattern, principal component analysis, and ReliefF are used to process image data and meteorological and mechanical data and the multilayer perceptron method is then applied to build the prediction model. The results obtained from extensive experiments on the real-world data collected from the online system of China Southern Power Grid demonstrate that this new LPR-MLP model can achieve higher prediction accuracy and precision of 86.31% and 85.3%, compared with four traditional methods. (shrink)
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The Optimization of a Virtual Dual Production-Inventory System under Dynamic Supply Disruption Risk.Yu Chen,Liyuan Liu,Victor Shi,Yibin Zhang &Jing Zhu -2020 -Complexity 2020:1-12.detailsMajor events such as the COVID-19 pandemic, Olympic Games, and G20 Summit bring about supplier disruption risks and challenges to supply chain management. To help deal with these risks, a virtual dual-sourcing production-inventory system can be deployed. In this paper, we study such a system which consists of a raw material supplier, a manufacturer, and a virtual dual-sourcing contingency supplier. The manufacturer needs to determine the production, procurement, and inventory plan of raw materials. When its supplier is interrupted, the manufacturer (...) may need to adjust the production and inventory plan and work with the contingency supplier. We develop a system dynamics method to simulate the operations in this production-inventory system to identify the approximately optimal order-up-to-level inventory policies. We find that the virtual dual production-inventory strategy can be the optimal contingency policy to deal with supplier dynamic disruption risks. Furthermore, for disruption risk with low frequency and long duration, the manufacturer should increase the safety inventory level before the disruption. Otherwise, it should increase the safety inventory level in every cycle. (shrink)
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