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Taeyoung Kim,Eonjoo Park,Jun Suk Eun,Eun-young Lee,Ji Won Mun,Yunsang Choi,Shinyoung Lee,Hansol Yeom,Eunkyoung Kim,Jongmu Kim,Jihyun Choi,Jinho Ha,Sookkyung Park 한국역학회 2023 Epidemiology and Health Vol.45 No.-
OBJECTIVES: As few mpox cases have been reported in Korea, we aimed to identify the characteristics of mpox infection by describing our epidemiologic investigation of a woman patient (index patient, the third case in Korea) and a physician who was infected by a needlestick injury (the fourth case). METHODS: We conducted contact tracing and exposure risk evaluation through interviews with these 2 patients and their physicians and contacts, as well as field investigations at each facility visited by the patients during their symptomatic periods. We then classified contacts into 3 levels according to their exposure risk and managed them to minimize further transmission by recommending quarantine and vaccination for post-exposure prophylaxis and monitoring their symptoms. RESULTS: The index patient had sexual contact with a man foreigner during a trip to Dubai, which was considered the probable route of transmission. In total, 27 healthcare-associated contacts across 7 healthcare facilities and 9 community contacts were identified. These contacts were classified into high (7 contacts), medium (9 contacts), and low (20 contacts) exposure risk groups. One high-risk contact was identified as a secondary patient: a physician who was injured while collecting specimens from the index patient. CONCLUSIONS: The index patient visited several medical facilities due to progressive symptoms prior to isolation. Although the 2022 mpox epidemic mainly affected young men, especially men who have sex with men, physicians should also consider mpox transmission in the general population for the timely detection of mpox-infected patients.
진영택(YoungTack Jin),김성렬(SeongRyeol Kim),한환수(HwanSu Han),최종무(JongMu Choi),조유근(YooKun Cho) 한국정보과학회 1993 한국정보과학회 학술발표논문집 Vol.20 No.2
기존의 운영제제에서는 프로세스 개념만을 지원하여 병렬응용의 실행 비용이 과다하다. 따라서 본 논문에서 단일처리기 시스템의 유닉스 운영체제에서 다중스레드 환경을 설계 구현한 연구 결과를 바탕으로 커널의 일부분만을 수정함으로써 큰 부담없이 병렬응용에 대한 지원이 가능함을 확인한다. 기존의 자료구조 (struct proc, struct user)에 대한 수정과 새롭게 정의된 자료구조들(struct task, struct thread)에 대해 살펴 본 후, 커널스레드를 생성 관리하는 과정을 살펴 본다. 또한, 커널스레드와 독립적인 사용자 수준의 스레드의 설계와 구현에 대하여 살펴 본다.