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Solar urticaria in Korean patients
( Sung Min Kim ),( Young Ah Cho ),( Ji Su Lee ),( Ji Youn Hong ),( Jin Hee Kim ),( Joo Ran Hong ),( Hye In Cheon ),( Yang Won Lee ),( Yong Beom Choe ),( Kyu Joong Ahn ) 대한피부과학회 2020 대한피부과학회 학술발표대회집 Vol.72 No.1
Background: Solar urticaria (SU) is an uncommon type of photodermatoses characterized by erythematous wheal with pruritus after sunlight exposure, which shows a female predominance. Only a few studies to analyze the clinical features of SU were reported in Asia. Objectives: We aimed to analyze the clinical and photobiological characteristics of SU in Korea. Methods: We retrospectively investigated the medical records of patients with SU who visited the department of dermatology, Konkuk university medical center from January 2005 to January 2020. Results: Of a total of 44 patients, 36 (81.8%) were male and 8 (18.2%) were female. The mean age at onset was 17.6 years (range, 5-47) and the mean threshold time was 19.7 minutes. Among 32 patients who underwent phototesting, the action spectrum most commonly implicated was ultraviolet (UV) A only in 12 (37.5%), and then visible light (415nm) only was responsible for SU in 8 (25.0%). Three patients (9.4%) were induced by both UVA and visible light (415nm). Even 4 patients (12.5%) were triggered by only natural sunlight. Serum immunoglobulin E levels were measured in 33 patients, and 17 (51.5%) showed values higher than normal. The treatment most widely used were oral antihistamine (43.2%), followed by phototherapy (13.6%). Conclusion: SU is a rare photodermatosis in Korea, which shows a male preponderance. In this study, UVA and visible light (415nm) were predominant action spectrum of SU.
The Evolving Policy Debate on Border Closure in Korea
Su-Jin Kang,Jihyun Moon,Heewon Kang,Heekyoung Nam,Sangwoo Tak,Sung-Il Cho 대한예방의학회 2020 Journal of Preventive Medicine and Public Health Vol.53 No.5
302 Copyright © 2020 The Korean Society for Preventive Medicine J Prev Med Public Health 2020;53:302-306 • https://doi.org/10.3961/jpmph.20.213 The Evolving Policy Debate on Border Closure in Korea SuJin Kang1, Jihyun Moon2, Heewon Kang1, Heekyoung Nam3, Sangwoo Tak1, Sung-il Cho1,3 1Institute of Health and Environment, Seoul National University, Seoul, Korea; 2Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University, Seoul, Korea; 3Department of Public Health Sciences, Graduate School of Public Health, Seoul National University, Seoul, Korea Brief Report Objectives: In this paper, we aimed to investigate the evolving debate over border closure in Korea during the coronavirus disease 2019 (COVID-19) pandemic, to address the main themes associated with border closure, and to discuss the factors that need to be considered when making such decisions. Methods: We collated and reviewed previously conducted review studies on border closures during infectious disease outbreaks to derive relevant themes and factors. Results: According to our systematic review on border closures and travel restrictions, the effects of such containment efforts are limited. We suggest considering the following factors when determining whether to impose border closure measures: (1) disease characteristics, (2) timeliness of implementation, (3) transmission delay and the basic reproduction number, (4) globalization and pandemics, and (5) social and economic costs. Conclusions: Our assessment indicates that the effects of border closures are at best temporary and limited. Alternative measures must be contemplated and implemented to suppress the spread of COVID-19 in particular and infectious diseases more broadly.
유비쿼티스 센서 네트웨크에서의 저전력 상호인증 프로토클
조영복,정윤수,김동명,이상호,Cho Young-Bok,Jung Youn-Su,Kim Dong-Myung,Lee Sang-Ho 한국컴퓨터정보학회 2005 韓國컴퓨터情報學會論文誌 Vol.10 No.2
유비쿼터스 센서 네트워크에서 모든 센서노드들은 한정된 배터리로 통신에 참여하게 된다 기존의 인증방식을 사용하는 경우 많은 연산 수행이 필요하여 센서노드의 배터리를 과다하게 소모하여 센서노드의 동작 기간이 상대적으로 짧아지므로 네트워크 유지에 많은 어려움이 존재한다. 이 논문에서는 센서노드의 인증과정에서 전력 소비문제를 해견하기 위해 RM (RegisterManager)과 AM (AuthenticationManager)을 도입한 네트워크 구조를 제시하고, 노드의 상호인증을 통한 세션키를 발급하는 저전력 상호인증 프로토콜을 제안한다. RM과 AM은 개댈 센서노드에서 안전성을 보장하기 위해 수행되는 키 생성 및 암/복호화, 인증 과정을 센서노드 대신 처리하여 빠른 연산속도로 알고리즘을 처리한다. 따라서 센서노드의 인증에 소요되는 알고리즘 수행시간이 동일 서브넷에 존재하는 경우 평균 2.96$\%$, 서로 다른 서브넷에 존재하는 경우 평균 12.91$\%$ 빠르게 수행된다. 따라서 제안 방식은 센서 노드가 더 오랜 시간 통신에 참여할 수 있도록 하며, 센서네트워크의 크기가 증가할수록 효율적이다. All sensors in Ubiquitous sensor network have to communicate with limited battery If we adopt current authentication, there are difficulties to keep sensor network because heavy calculation in each sensor needs more power and lifetime of sensor could be short relatively because of the effect. This paper suggests network structure which is using RM(RegisterManarer) and AM(AuthenticationManager) to solve power Problem on authentication, and su99ests mutual-authentication protocol with low Power which supports a session key by mutual-authentication. RM and AM manage algorithm with fast calculation to keep the safety by doing key generation. encryption/decryption. authentication instead of each sensor node . Processing time to authenticate sensor node is 2.96$\%$ fast in the same subnet, and 12.91$\%$ fast in different subnet. Therefore. the suggested way Provides expanded lifetime of censor node and is more effective as sensor network size is bigger and bigger.
Sung, Tae-Yun,Kim, Min-Su,Cho, Choon-Kyu,Park, Dong-Ho,Kang, Po-Soon,Lee, Sang-Eok,Kwon, Won-Kyoung,Woo, Nam-Sik,Kim, Seong-Hyop Cambridge Medical Publications Ltd 2013 The Journal of international medical research Vol.41 No.4
<P>The study evaluated the clinical intraoperative effects of intrathecal administration of fentanyl on shoulder tip pain in patients undergoing laparoscopic total extraperitoneal inguinal hernia repair (TEP) under spinal anaesthesia.</P>
Sung Kwon Kim,Ji Eun Park,Kyung Hwan Kim,Jin Mo Cho,문장섭,Wan-Soo Yoon,김세훈,김영일,김영준,Ho Sung Kim,도윤식,박재성,윤홍인,서영범,Kyoung-Su Sung,송진호,Chan Woo Wee,Se-Hoon Lee,임도훈,임정호,장종희,한명훈,홍제범,Kihwan Hwang,Chul-Kee Park 대한뇌종양학회 2020 Brain Tumor Research and Treatment Vol.8 No.1
Background: The Guideline Working Group of the Korean Society for Neuro-Oncology (KSNO) conducted the nationwide questionnaire survey for diverse queries facing to treat patients with brain tumor. As part III of the survey, the aim of this study is to evaluate the national patterns of clinical practice for patients with brain metastasis and primary central nervous system lymphoma (PCNSL). Methods: A web-based survey was sent to all members of the KSNO by email. The survey included 7 questions of brain metastasis and 5 questions of PCNSL, focused on the management strategies in specific situations. All questions were developed by consensus of the Guideline Working Group. Results: In the survey about brain metastasis, respondents preferred surgical resection with adjuvant treatment for patients with a surgically accessible single brain metastatic lesion less than 3 cm in size without extracranial systemic lesions. However, most respondents considered radiosurgery for surgically inaccessible lesions. As the preferred treatment of multiple brain metastases according to the number of brain lesions, respondents tended to choose radiotherapy with increasing number of lesions Radiosurgery was mostly chosen for the brain metastases of less than or equal to 4. In the survey about PCNSL, a half of respondents choose high-dose methotrexate-based polychemotherapy as the first-line induction therapy for PCNSL. The consolidation and salvage therapy showed a little variation among respondents. For PCNSL patients with cerebrospinal fluid dissemination, intrathecal chemotherapy was most preferred. Conclusion: The survey demonstrates the prevailing clinical practice patterns for patients with brain metastasis and PCNSL among members of the KSNO. This information provides a point of reference for establishing a practical guideline in the management of brain metastasis and PCNSL.