Forecasting blood glucose values for patients can help prevent hypoglycemia and hyperglycemia events in advance. To this end, this study proposes an intelligent ensemble deep learning system to predict BG values in 15, 30, and 60 min prediction horizons based on historical BG values collected via continuous glucose monitoring devices as an endogenous factor and carbohydrate intake and insulin administration information as exogenous factors. Although there are numerous deep learning algorithms available, this study applied five algorithms, namely, recurrent neural network, (...) which is optimized for sequence data, and RNN-based algorithms, stacked LSTM, bidirectional LSTM, and gated recurrent unit). Then, a genetic algorithm was applied to the five prediction models to optimize their weights through ensemble techniques and to yield the final predicted BG values. The performance of the proposed model was compared to that of the autoregressive integrated moving average model as a baseline. The results show that the proposed model significantly outperforms the baseline in terms of the root mean square error and continuous glucose error grid analysis. For the valid 29 diabetic patients for the multivariate models, the RMSE was 11.08, 19.25, and 31.30 mg/DL for 15, 30, and 60 min PH, respectively. When the same data were applied to univariate models, the RMSE was 11.28, 19.99, and 33.13 mg/DL for 15, 30, and 60 min PH, respectively. Both the univariate and multivariate models showed a statistically significant difference compared with the baseline at a 5% statistical significance level. Instead of using a model with a single algorithm, applying a GA based on each output of a model with multiple algorithms was found to play a significant role in improving model performance. (shrink)

1. Iyagipʻyŏn -- 2. Tʻamgu haksŭppʻyŏn.

Spanning the 19th and 20th centuries and identifying multiple waves of modernization, this book illustrates how principles originating in Chinese Confucianism have impacted the modernization of East Asia, especially in Korea. It also analyzes how such principles are exercised at personal, interpersonal and organizational levels. As modernization unfolds in East Asia, there is a rising interest in tradition of Confucianism and reconsider the relevance of Confucianism to global development. This book considers the actual historical significance of Confucianism in the modernization (...) of the three nations in this region, China, Korea, and Japan through the nineteenth century and early twentieth century to the aftermath of the end of World War II. Examining the existing literature dealing with how Confucianism has been viewed in connection with modernization, it provides insight into western attitudes towards Confucianism and the changes in perceptions relative to Asia in the very process of modernization itself. (shrink)

Objectives: The corona virus disease-2019 pandemic spread globally, and we aimed to investigate the psychosocial impact on healthcare workers in China during the pandemic.Methods: In this systematic review and meta-analysis, we searched seven electronic databases for cross-sectional studies on psychosocial impact on HWs in relation to COVID-19 from January 1, 2020 to October 7, 2020. We included primary studies involving Chinese HWs during the pandemic, and data were extracted from the published articles. Our primary outcome was prevalence of anxiety, depression, (...) and stress disorders. We pooled prevalence value with their 95% confidence interval using random effect models and assessed study quality on the basis of an 11-item checklist recommended by the Agency for Healthcare Research and Quality. The study protocol was registered in PROSPERO.Results: We identified 25 articles comprising a total of 30,841 completed questionnaires and 22 studies for meta-analysis. The prevalence of anxiety, depression, and stress disorders was 34.4%, 31.1%, and 29.1% for HWs. The pooled prevalence of anxiety disorders for HWs from late January to early February was 46.4%, significantly higher than those in mid-term February and after late February. The pooled prevalence of depression disorders for HWs from late January to early February was 46.5%, significantly higher than those in mid-term February and after late February. HWs working in Hubei Province had a higher prevalence of anxiety and a lower prevalence of depression than those working in other regions. Nurses had a higher prevalence of anxiety and depression than other HWs.Conclusions: About one-third of HWs in China suffered anxiety, depression, and stress at the early epidemic of COVID-19. HWs in Hubei Province, especially nurses, had a higher prevalence of psychological disorders. During the pandemic, a negative psychological state may persist in a proportion of Chinese HWs, fluctuating with the control of the pandemic. The long-term impact should continue to be observed. Attention should be paid to HWs for their psychological impact due to the pandemic.Systematic Review Registration: The study protocol was registered with PROSPERO. (shrink)

This study focuses on CEO hubris and its detrimental effect on corporate financial performance along with an examination of critical corporate governance contingencies that may moderate the negative effect. From 654 observations of 164 Korean firms over the years 2001–2008, we found that CEO power exacerbated the negative effect of CEO hubris on corporate financial performance, whereas board vigilance mitigated it. This study provides empirical evidence that entrenchment problems arising from CEO hubris would be exacerbated as CEOs become more powerful, (...) but weakened as board of directors become more vigilant. Theoretical contributions and practical implications will be discussed. (shrink)

From the perspective of the system of systems development, system-level functional testing is required for designing subsystems. This study utilizes modeling and simulation techniques to analyze the operational behaviors of the subsystems and confirm data communication between them. The targeted system in the study is a naval combat system, which is a typical type of defense cyber-physical system. Three types of models were designed for the simulation testing of the NCS: a combat-management model for simulating the overall computational activities, physical (...) models to confirm the intrasubsystem behaviors, and data integration models to test the intersubsystem communications. These models are realized with the Model-View-ViewModel design pattern, which strongly facilitates graphical user interfaces being decoupled from model logic and data. We consider underwater combat scenarios as an application. Six significant physical subsystems within the NCS are simulated and tested: a ship-steering system, an inertial navigation system, a global navigation satellite system, a periscope, sonar systems, and a plotting board. We expect that the proposed work will play a principal role when analyzing the behaviors and communications of defense CPSs and providing an environment for functional testing as a digital twin. (shrink)

To probe the motivational roles of hedonic gratification and social gratification in giving “Like” feedback on social media, we developed a set of novel pictures to simulate WeChat Moments. We subsequently examined how the personality trait of extraversion and stimulus content characteristics influenced “Liking” behavior. A 2 × 3 × 2 -mixed experimental design was applied to data obtained from 56 WeChat Moments users. These participants included 28 individuals with the highest extraversion scale scores, and 28 individuals with the lowest (...) extraversion scale scores, according to the NEO Five-Factor Inventory. Briefly, participants observed pictures on an interface similar to that of WeChat Moments and were given the option to “Like” each picture. “Like” rates and response time were then compared across groups and conditions by applying a mixed-design analysis of variance. Pearson's correlation coefficients were calculated to explore relationships between the “Like” rates under each condition and the scores for each personality trait. Compared with the neutral pictures, the positive and negative pictures were “Liked” more and less frequently, respectively. Compared with the poster-unrelated pictures, the personally related pictures were “Liked” more frequently. In the extrovert group, the frequency of “Likes” given to unrelated negative content positively associated with neuroticism and negatively associated with conscientiousness. No correlations were observed in the introvert group. Compared with not giving “Like” feedback, participants gave “Likes” to positive and negative pictures more quickly and slowly, respectively.These results support the hypothesis that hedonic gratification and social gratification motivate “Like” feedback for positive content and personally related content, respectively. “Liking” behavior was not affected by extraversion, but was related to neuroticism and conscientiousness. Content-related differences in time intervals for giving “Like” feedback in this study suggest that people do not hesitate to give “Like” feedback to positive content on WeChat Moments, yet linger in deciding to give “Like” feedback to negative content. (shrink)

Using two firm-level datasets in Korea, we analyzed the effects of corporate social responsibility on employment relations. We propose that participation in corporate social activity may not necessarily reflect an ethical commitment to do “the right thing,” but instead can be associated with mobilizing internal resources to offset the costs imposed by external CSR involvement undertaken because of social pressure. Analysis of the two datasets showed similar results. The results demonstrate that socially responsible actions facilitate employer tendency to use performance-based (...) pay and efficiency-based work practices. We also find that CSR has a negative association with employment growth and increased labor flexibility through contingent employment. These findings shed light on the internal impact of CSR involvement on a firm’s employment policies with respect to resource allocation. (shrink)

South Korean educators and curriculum scholars have attempted to challenge Eurocentric points of view in history education. Despite these efforts, the dominant textbooks and teaching practices in South Korea continue to project colonial epistemologies. This article argues that postcolonial inquiry into knowledge production can help expand the debate. Grounded in a framework of postcolonial theories, we examine three Korean high school world history textbooks for the ways in which they reproduce Eurocentric colonial hegemony. To conduct our study, we developed four (...) analytical criteria: (a) constructions of Subject/Other, (b) discourses of inclusion/exclusion, (c) silencing of voices, and (d) narratives of re/colonization. Focusing on two major historical themes in the textbooks?the Discovery of New Trade Routes and the Industrial Revolution?we postulate the need to pluralize historical consciousness, reflect the contributions of the East to world history, and rethink curriculum and teaching practices. (shrink)

SignificanceElectrical burns can cause severe damage to the nervous system, resulting in autonomic dysfunction with reduced cerebral perfusion. However, few studies have investigated these consequences.AimTo elucidate changes in prefrontal cerebral hemodynamics using functional near-infrared spectroscopy (fNIRS) during the head-up tilt table test (HUT) for patients with electrical burns.ApproachWe recruited 17 patients with acute electrical burns within 1 week after their accidents and 10 healthy volunteers. The NIRS parameters acquired using an fNIRS device attached to the forehead were analyzed in five (...) distinct HUT phases.ResultsBased on their HUT response patterns, patients with electrical burns were classified into the group with abnormal HUT results (APG, n = 4) or normal HUT results (NPG, n = 13) and compared with the healthy control (HC, n = 10) participants. We found trends in hemodynamic changes during the HUT that distinguished HC, NPG, and APG. Reduced cerebral perfusion and decreased blood oxygenation during the HUT were found in both the NPG and APG groups. Patients with electrical burns had autonomic dysfunction compared to the HC participants.ConclusionsUsing fNIRS, we observed that acute-stage electrical burn injuries could affect cerebral perfusion. (shrink)

The principle of fairness holds that individuals (beneficiaries) who benefit from a cooperative scheme of others (cooperators) have an obligation to do their share in return for their benefit. The original proponent of this principle, H. L. A. Hart suggests ‘mutuality of restrictions’ as a moral basis because it is fair to mutually restrict the freedom of both beneficiaries and cooperators; so called the fairness obligation. This paper explores ‘mutuality of restrictions’, which is interpreted as a right-based and an equality-based (...) justification of the fairness obligation. It is not argued whether both ways of justifying the obligation makes a success, but that they are in need of presupposing that there is a duty for beneficiaries to do their share in return for their benefit. This suggests turning to a duty-based justification of the fairness obligation. (shrink)