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유용준,박혜진,한명월,김지원 대한후두음성언어의학회 2022 대한후두음성언어의학회지 Vol.33 No.1
Background and Objectives Cough suppression therapy (CST) is a physiotherapy that can be used for patients with chronic refractory cough (CRC). We aimed to investigate the efficacy of CST for CRC.Materials and Method A prospective randomized controlled trial was conducted in 27 patients with CRC. Participants were randomized to receive either standard mucolytic medications for CRC combined with supplemental CST (CST group) or standard medications alone (control group). CST consists of laryngeal hygiene management, humidification, cough suppression technique, breathing method, and counseling. We assessed the symptoms change at baseline and week 4 with the Leicester Cough Questionnaire (LCQ). Secondary efficacy outcomes included the degree of cough Visual Analog Scale (VAS) score (0 to 100 scale).Results From 2019 to 2021, 14 CST group patients and 13 control group patients were included. The improvement was significantly greater in the CST group than in the control group for cough VAS score (36.67 to 13.33 vs. 74.29 to 16.43, p<0.001). Patients in the CST group had a significant improvement in total (70.14 to 107.71, p=0.005), physical (31.42 to 43.86, p= 0.015), psychological (23.57 to 40.14, p=0.003), and social (15.14 to 23.71, p=0.005) LCQ scores. However, there was not a significant pre- to post-treatment LCQ score improvement in control group.Conclusion CST might be an effective supplemental intervention for CRC.
메르스 대유행 생존자들이 인식한 낙인이 대처전략 및 우울 및 외상후 스트레스 증상에 끼치는 장기적 영향
유용준,박혜윤,김정란,이정재,이해우,이소희 한국정신신체의학회 2022 정신신체의학 Vol.30 No.2
Objectives:This study intends to assess the associations among perceived stigma at the time of infection, coping strategies adopted 12 months later and depressive and posttraumatic symptoms 24 months later in Middle Eastern Respiratory Syndrome (MERS) survivors. Methods:A nationwide cohort study was conducted on 63 survivors of 2015 MERS outbreak. Demographic data, illness severity of MERS, depression and posttraumatic stress symptoms, coping strategies and MERS-related stigma were collected 12 and 24 months after the MERS outbreak, respectively. Results:Higher levels of perceived stigma at the time of outbreak were associated with higher levels of dysfunctional coping strategies after 12 months (p=0.003) and more severe depressive (p=0.058) and posttraumatic stress symptoms (p=0.011) after 24 months. Moreover, higher levels of dysfunctional coping strategies after 12 months were significantly associated with more severe depressive (p=0.002) and posttraumatic stress symptoms (p<0.001) after 24 months. Conclusions:Social stigma against people who have contracted an emerging infectious disease can leave a negative impact on the mental health of the survivors in the long term. In case of novel pandemics in the future, prompt rectification of stigma and promotion of adaptive coping strategies in survivors are needed. 연구목적본 연구는 메르스 생존자에서 감염 당시 낙인에 대한 인식, 12개월 후 이들이 사용하는 대처전략, 24개월 후우울 및 외상후 스트레스 증상에 끼치는 영향 간의 연관성을 확인하고자 하였다. 방 법63명의 2015년 메르스 생존자를 대상으로 코호트 연구를 진행하여 12개월 및 24개월 후에 인구학적 정보, 메르스 감염의 심각도, 우울 및 외상후 스트레스 증상, 대처전략, 낙인에 대한 인식 등을 조사했다. 결 과감염 당시 낙인의 인식은 12개월 후 부정적 대처전략(p=0.003), 24개월 후 우울(p=0.058) 및 외상후 스트레스증상(p=0.011)과 연관성을 보였다. 12개월 후 부정적 대처전략과 24개월 후 우울(p=0.002) 및 외상후 스트레스증상(p<0.001) 간에도 유의한 연관성이 있었다. 결 론감염자에 대한 낙인은 생존자들의 장기적 정신 건강에 부정적 영향을 줄 수 있다. 향후 신종감염병 유행 시낙인 문제를 개선하고 생존자들이 적응적 대처전략을 가지도록 도와야 한다.
SIMVA를 이용한 시뮬레이션 기반의 네트워크 취약성 분석
유용준,이장세,지승도,You Yong-Jun,Lee Jang-Se,Chi Sung-Do 한국시뮬레이션학회 2004 한국시뮬레이션학회 논문지 Vol.13 No.3
The major objective of this paper is to analyze network vulnerabilities using the SIMVA (SIMualtion-based Vulnerability Analyzer). SIMVA is capable of monitor network status and analyze vulnerabilities automatically. To do this, we have employed the advanced modeling and simulation concepts such as SES/MB (System Entity Structure / Model Base) framework, DEVS (Discrete Event System Specification) formalism, and experimental frame for developing network security models and simulation-based analysis of vulnerability. SIMVA can analyze static vulnerability as well as dynamic vulnerability consistently and quantitatively. In this paper, we verified and tested the capability of application of SIMVA by slammer worm attack scenario.
함정전투 시뮬레이션을 위한 HEAP 기반 지능 에이전트에 관한 연구
유용준,지승도,김재익,You, Yong-Jun,Chi, Sung-Do,Kim, Jae-Ick 한국시뮬레이션학회 2010 한국시뮬레이션학회 논문지 Vol.19 No.4
Recently the intelligent agent systems have been emerged as one of key issues for developing the defense M&S systems. However, most conventional agent architecture of M&S systems utilize the script-based models and can only deal with the individual behaviors so that they cannot suitably describe the precise tactical/strategic behavior and/or complex warfare environment. To overcome these problems, we have proposed the HEAP(Hierarchical Encapsulation and Abstraction Principle)-based hierarchical multi-agent system architecture that is able to intelligently cope with the complex missions based on the functional role of each agent on the hierarchy such as an intelligence officer, captain, commander.