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Jihoon Oh(Jihoon Oh),Sekye Jeon(Sekye Jeon),Tae Hyon Ha(Tae Hyon Ha),Woojae Myung(Woojae Myung),Seung-Hwan Lee(Seung-Hwan Lee),Young-Hoon Ko(Young-Hoon Ko),Do Hoon Kim(Do Hoon Kim),Hwa-Young Lee(Hwa-Y 대한정신약물학회 2023 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.21 No.2
Objective: Although the effects and safety of transcranial direct current stimulation (tDCS) treatment in depressive patients are largely investigated, whether the self-administration of tDCS treatment at patient’s home is comparable to clinic-based treatment is still unknown. Methods: In this single-arm, multi-center clinical trial, 61 patients with mild to moderate major depressive disorder were enrolled. tDCS treatment was delivered at the patient’s home once a day, 5 to 7 times a week for 6 weeks, and each session lasted for 30 minutes. The primary outcome was a total Beck-Depression Inventory-II score, and no concurrent antidepressants were used. Results: The remission rates in both Full-Analysis (FA) (n = 61) and Per-Protocol (PP) (n = 43) groups were statistically significant (FA: 57.4% [0.44−0.70], PP: 62.8% [0.47−0.77]; percent [95% confidence interval]). The degree of depression- related symptoms was also significantly improved in 2, 4, and 6 weeks after the treatment when compared with baseline. There was no significant association between treatment compliance and remission rate in both FA and PP groups. Conclusion: These results suggest that acute treatment of patient-administered tDCS might be effective in improving the subjective feeling of depressive symptoms in mild to moderate major depressive disorder patients.
Software-Based Selective Validation Techniques for Robust CGRAs Against Soft Errors
Ko, Yohan,Kang, Jihoon,Lee, Jongwon,Kim, Yongjoo,Kim, Joonhyun,So, Hwisoo,Lee, Kyoungwoo,Paek, Yunheung Association for Computing Machinery 2016 ACM transactions on embedded computing systems Vol.15 No.1
<P>Coarse-Grained Reconfigurable Architectures (CGRAs) are drawing significant attention since they promise both performances with parallelism and flexibility with reconfiguration. Soft errors (or transient faults) are becoming a serious design concern in embedded systems including CGRAs since the soft error rate is increasing exponentially as technology is scaling. A recently proposed software-based technique with TMR (Triple Modular Redundancy) implemented on CGRAs incurs extreme overheads in terms of runtime and energy consumption mainly due to expensive voting mechanisms for the outputs from the triplication of every operation. In this article, we propose selective validation mechanisms for efficient modular redundancy techniques in the datapaths on CGRAs. Our techniques selectively validate the results at synchronous operations rather than every operation in order to reduce the expensive performance overhead from the validation mechanism. We also present an optimization technique to further improve the runtime and the energy consumption by minimizing synchronous operations where a validating mechanism needs to be applied. Our experimental results demonstrate that our selective validation-based TMR technique with our optimization on CGRAs can improve the runtime by 41.0% and the energy consumption by 26.2% on average over benchmarks as compared to the recently proposed software-based TMR technique with the full validation.</P>
Jihoon T Kim,Min-Ju Kim,Youngjin Han,Ji Yoon Choi,Gi-Young Ko,Tae-Won Kwon,Yong-Pil Cho 대한외과학회 2016 Annals of Surgical Treatment and Research(ASRT) Vol.90 No.2
Purpose: To propose a new, multivariable risk-scoring model for predicting 30-day mortality in individuals underwent repair of abdominal aortic aneurysms (AAA). Methods: Four hundred eighty-five consecutive patients who underwent AAA repair from January 2000 to December 2010 were included in the study. Univariate and multivariate analyses were performed to evaluate the risk factors, and a riskscoring model was developed. Results: Multivariate analysis identified three independent preoperative risk factors associated with mortality, and a risk-scoring model was created by assigning an equal value to each factor. The independent predictors were location of the AAA, rupture of AAA, and preoperative pulmonary dysfunction. The multivariable regression model demonstrated moderate discrimination (c statistic, 0.811) and calibration (Hosmer-Lemeshow test, P = 0.793). The observed mortality rate did not differ significantly from that predicted by our risk-scoring model. Conclusion: Our risk-scoring model has excellent ability to predict 30-day mortality after AAA repair, and awaits validation in further studies.
내용 조직 방법에 따른 박물관 내러티브 학습 효용성 연구
고지훈 국립중앙박물관 2019 박물관 교육 Vol.3 No.-
This study starts from the question of how to increase students' understanding of history and develop historical thinking ability through learning of exhibits when the interest in museums is increasing and museum visits are becoming more common. In order to find out which method of content organization is appropriate to increase this, 29 students in middle school and high school were studied at the National Museum of Korea. As a result, the following conclusions were made. First, as a result of confirming the improvement of historical thinking ability, both age-centered learning and subject-based learning improved all the areas of historical thinking power, and each method had advantages. Age-based learning was more effective in the time-varying domain. Subject-based learning has improved in the areas of historical imagination, causality, and value judgment, especially in causality. Second, as a result of confirming the level of understanding of exhibition interpretation presented by Eisner, the contextual approach corresponding to the sixth stage was more subject-oriented learning than after age-based learning. In addition, low-level approaches corresponding to stages 1 and 2 existed in era-centered learning, but not subject-based learning. This suggests that subject-based learning Is more effective In understanding and interpreting the exhibition than era-based learning. Third, as a result of In-depth Interviews with learners, learning to improve learners' understanding was subject-based learning. The students replied that subject-based learning was able to see the exhibits in detail, to be more memorable, and to know the earthenware of the times. Subject-based learning can induce students' interests, develop inquiry skills through understanding causal relationships, and contribute to long-term memory in that they can see change and social appearance with the passage of time with a single subject. As a result, subject-based learning is more suitable for museum education as a method of organizing content through narrative learning. 박물관이 주체가 되어 이루어지는 교육을 박물관 교육이라 할 때, 박물관 교육의 여러 분야 중 역사 유물을 중심으로 이루어지는 교육은 박물관 역사교육이라고 부를 수 있다. 박물관의 역사교육은 박물관이 추구하는 역사교육의 목표에 따라 달라진다. 본 연구는 박물관에 대한 관심이 증가하고 박물관 방문이 보편화된 시점에서 어떻게 하면 전시물 학습을 통해 학생들의 역사이해를 높이고 역사적 사고력을 기를 수 있을까 하는 질문에서 출발하였다. 이에 본 논고에서는 박물관 내러티브 학습에 있어 내용 조직 방법을 연구의 목적으로 하여 박물관 교육에서 유물을 선정 시 어떠한 방식의 유물 선정 방법이 학습적으로 도움이 되는가에 대한 효용성을 확인하고자 하였다. 결과적으로 시대 중심 학습에 비해 주제 중심 학습은 하나의 주제를 가지고 시대의 흐름에 따라 변화와 사회모습을 볼 수 있다는 점에서 학생들의 흥미를 유발하고 인과관계의 이해를 통한 탐구능력을 기를 수 있으며 장기기억에 도움이 되는 것으로 파악되었다. 그러므로 박물관에서 내러티브 학습을 통해 학습자의 역사적 사고력을 향상시키기 위한 내용 조직 방법은 주제 중심 학습이 더 적합하다고 볼 수 있다.