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.

근막 결손의 복원과 자궁천골인대 고정을 통한 전자궁적출술 후 질탈출의 성공적 교정

문화숙(Hwa Sook Moon),최진국(Jin Koo Choi),김경서(Kyung Seo Kim),박근식(Kyun Sik Park),황지영(Ji Young Hwang),문성은(Sung Eun Moon),한지원(Ji Won Han),김상국(Sang Gook Kim),김상갑(Sang Gap Kim) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.7

목적 : 본 연구는 전자궁적출술 후 질탈출을 부위-특이적인 결함의 개념에 입각하여 치골경부 근막과 직장질 격막의 연결을 통한 골반내 근막의 복원과 자궁천골인대 고정술을 이용한 질탈출의 성공적인 수술적 교정의 방법과 결과를 보고하고자 한다. 연구 방법 : 1999년부터 2001년 8월까지 자궁적출술 후 질궁탈출 증상으로 문화병원 산부인과를 내원, 탈출된 질의 근막을 재건시킨 다음, 이를 자궁천골인대에 고정시킴으로써 질의 부위-특이적인 교정술을 받은 3명의 환자를 대상으로 하였다. 3명중 1명은 개복술을 하였고 2명은 내시경 수술을 하였다. 결과 : 환자의 연령 분포는 49-67세였으며, 수술시간은 평균 113분 (105-125)이었다. 세 환자 모두 수술 후 질의 상태가 해부학 및 기능적으로 정상이었으며, 9일째 특이사항 없이 퇴원하였다. 수술 후 HRT를 시행한 1명을 포함한 3명 모두 각각 24개월, 12개월, 7개월간의 추적 검사에서도 특이한 합병증이나 재발 없이 좋은 경과를 보였다. 결론 : 골반 근막 결손의 복원과 자궁천골인대 고정술은 전자궁적출술 후 질탈출의 교정에 매우 안전하고 효과적이며, 기능적인 방법으로 사료되며, 자궁천골인대를 질탈출 교정에 이용한 연구는 본 연구가 국내에서 처음이다. Objective : To report the method and efficacy of the site specific-defects repair in the endopelvic fascia and uterosacral ligament suspension for the correction of posthysterectomy vaginal vault prolapse. Methods : This study was performed in 3 patients with posthyterectomy vaginal vault prolapse who underwent the surgery for the reconstruction of endopelvic fascia and the correction of vault prolapsed vagina by using uterosacral ligament suspension at the department of Obstetrics and Gynecology in Moon-Hwa Hospital. Among them, 1 patient was treated by laparotomy, and 2 patients were treated by laparoscope. Results : The age of patients ranged from 49 to 67 years. The mean operation time was 111 minutes (105-120 minutes). The status of postoperative vagina was normal in all 3 patients, who were discharged 9 days after operation without symptoms. No complication or recurrence were found in them despite long-term follow-up for 24 months, 12 months, 7 months, respectively after operation. One patient has been treated with HRT therapy. Conclusion : The reconstruction of the defect of endopelvic fascia and uterosacral ligament fixation may be very safe, effective, and functional in the correction of vaginal vault prolapse. This study reports the treatment of vaginal vault prolapse using uterosacral ligament within Korea for the first time.

달 궤도 진입 목표값 변화에 따른 궤도요소 변화 연구

최수진,김인규,문상만,민승용,류동영,Choi, Su-Jin,Kim, In-Kyu,Moon, Sang-Man,Min, SeungYong,Rew, Dong-Young 항공우주시스템공학회 2015 항공우주시스템공학회지 Vol.9 No.4

Korea Aerospace Research Institute(here after KARI) has a plan to launch experimental lunar orbiter in 2018, and lunar orbiter and lander in 2020. There are several ways to go to the moon. Which one is direct transfer trajectory and another one is phasing loop transfer trajectory and the other one is WSB trajectory. Regardless of the transfer trajectories, LOI maneuver is the most important maneuver of all mission sequences because if this burn is failed, it is too difficult to get into the lunar orbit in the future. This paper describes first LOI target value of foreign lunar orbiters and analyzes orbital variations of experimental lunar orbiter according to various target values. By analyzing the variation of orbiter parameter after first LOI, proper orbital period for LOI target value are recommended to meet the inclination, apoapsis and periapsis altitude constraints.

달 탐사선의 발사 요구조건 및 임무궤도 사례연구

석병석(Suk, Byong-suk),민승용(Min, Seung-yong),권재욱(Kwon, Jae-wook),김창균(Kim, Chang-kyoon),문상만(Moon, Sang-man),최수진(Choi, Su-jin),구철회(Koo, Cheol-hea),김인규(Kim, In-kyu),류동영(Ryu, Dong-young) 한국항공우주연구원 2015 항공우주산업기술동향 Vol.13 No.2

시험용 달 궤도선의 발사 요구조건 사전 분석 단계로 최근 외국에서 발사한 달 탐사선의 발사 요구조건을 분석하였다. 일반적으로 달 탐사선의 발사 요구조건은 달 임무 궤도를 결정하는 중요한 요소이며, 또한 지구, 달, 태양의 상대적인 운동으로 인해 임무궤도 요구조건을 만족하는 발사 가능 시간이 주기적으로 반복되는 경향이 있다. 분석 결과 설정된 발사 요구조건들로부터 달 궤도선의 주 임무가 달의 남/북극 지역의 광학 관측 임을 간접적으로 알 수 있었다. 향후 우리나라 달 궤도선 발사 요구 조건 설정에 본 논문이 도움이 되길 기대한다. In the preliminary study on launch window requirement for Korea Path-finder Lunar Orbiter(KPLO), the recent foreign lunar orbiter’s lauch window requirement was analyzed. Normally, the launch requirements depends on the mission orbit. Based on the relationship between Moon, Earth, and Sun, the launch time will be available periodically to meet requirements. In this paper, it is understood that the launch window requirements come from payload mission requirements to take picture each poles of Moon. This paper might be a practical example to derive KPLO launch requirements in the future.

Malignant proliferating trichilemmal tumor: A rare case showing metastasis to multiple organ

( Sang Jin Cheon ),( Hyunju Jin ),( Hyang Suk You ),( Woo Haing Shim ),( Jeong Min Kim ),( Gun Wook Kim ),( Hyun Chang Ko ),( Byung Soo Kim ),( Moon Bum Kim ),( Hoon Soo Kim ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1

Malignant proliferating trichilemmal tumor (MPTT) is a rare neoplasm derived from the outer sheet of hair follicle. These tumors are almost benign, and are often cystic, characterized by trichilemmal keratinization. However, at times, the tumor has an aggressive clinical course. 4 years ago, a 73-year-old man admitted to our department after wide excision surgery. 7 years ago, well-defined subcutaneous nodule appeared on left buttock. So he had undergone a wide excision surgery at local clinic. On histopathologic exam, MPTT was diagnosed and then transferred to our department. In abdomen CT showed ipsilateral inguinal lymph node enlargement and confirmed metastasis of MPTT in left inguinal lymph node by biopsy. So left lymph node dissection was done. After 1 month, subcutaneous nodule appeared post operative site so reoperated by Mohs micrographic surgery to clarify clear surgical margin. After surgery, the patient followed up for 3 months apart. But 3 months ago, erythematous plaque was appeared on left cheek, left palm and 4th fingertip respectively. All of them revealed meatastasis of MPTT by histopathologic exam. Eventually, He transferred hematooncology department, being treated with cisplatin and 5-fluorouracil combination chemotherapy. Our case showed prior incomplete surgical excision of MPTT could induce aggressive clinical course and reinforce importance of complete surgical excision to prevent recurrence and metastasis.

Two cases of pigmented neurofibroma with hypertrichosis

( Sang Jin Cheon ),( Hyun Ju Jin ),( Hyang Suk You ),( Woo Haing Shim ),( Jeong Min Kim ),( Gun Wook Kim ),( Hyun Chang Ko ),( Byung Soo Kim ),( Moon Bum Kim ),( Hoon Soo Kim ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1

Pigmented neurofibroma (PNF) is a rare variant of tumor consisting neurofibroma with melanin-laden pigmented cells. Rarely, there has been reported PNF with hypertrichosis. In that case, differential diagnoses of smooth muscle harmatoma and combined with Becker’s nevus are required. Case 1, a 29-year-old man presented with localized brownish plaque with hypertrichosis on the left side of forehead. In physical examination, 15x15cm size, well-defined brownish plaque with excessive terminal hair on the left side of forehead. On histopathologic finding, the hair follicles were abundant in the dermis and the spindle cell proliferation with wavy nuclei were detected within deep reticular dermis. Spindle cells were positive for S-100 and also showing positive to melan-A melanin-laden cells were scattered. Case 2, 7-year-girl presented with solitary palpable mass in subcutis and brownish patch with hypertrichosis on the left shin. Also on histologic exam, revealed prominent hair follicle, spindle cell proliferation and scattered melanin-laden cells were observed. Both patients, the diagnosis of PNF with hypertrichosis was made by distinctive histopathologic findings. Herein, we experience two cases of PNF with hypertrichosis. This will be helpful understanding distinctive histopathologic finding of PNF with hypertrichosis.

Nevus vascularis mixtus

( Sung Min Park ),( Hyunju Jin ),( Hyang Suk You ),( Woo Haing Shim ),( Jeong Min Kim ),( Gun Wook Kim ),( Hoon Soo Kim ),( Byung Soo Kim ),( Moon Bum Kim ),( Hyun Chang Ko ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1

The concept of mosaicism has been shown to explain different cutaneous patterns such as the lines of Blaschko, the checkerboard pattern, the phylloid pattern, and a patchy pattern. Many mosaic patterns are caused by loss of heterozygosity, the genetic mechanism by which a heterozygous somatic cell becomes either homozygous or hemizygous. A particular form of loss of heterozygosity is twin spotting, which give rise to two contrary homozygous daughter cells. The concept of twin spotting has been used for some of these human phenotypes, characterized by the co-occurrence of two different nevi including nevus vascularis mixtus. Nevus vascularis mixtus is a rare vascular malformation characterized by the coexistence of a nevus anemicus and a nevus telangiectaticus, can be associated with extra-cutaneous anomalies such as brain malformation. Herein, we report a 6-year-old girl with paired cutaneous vascular nevi telangiectaticus and anemicus, that is nevus vascularis mixtus, distributed on the left side of chest and left arm without other systemic and neurologic anomalies.

Epidermal nevus with Meyerson phenomenon

( Sang Jin Cheon ),( Hyunju Jin ),( Hyang Suk You ),( Woo Haing Shim ),( Jeong Min Kim ),( Gun Wook Kim ),( Hoon Soo Kim ),( Byung Soo Kim ),( Moon Bum Kim ),( Hyun Chang Ko ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.1

Since Meyerson first described a peculiar eczematous halo surrounding acquired melanocytic nevi in 1971, Meyerson phenomenon was reported in numerous cutaneous diseases such as benign melanocytic nevi, seborrheic keratosis, molluscum contagiosum, dermatofibroma, keloid, insect bites, capillary malformation and basal cell carcinoma. Currently, the mechanism of pathogenesis in Meyerson phenomenon is still not elucidated. An 8-month-old male infant presented yellowish to brownish verrucous plaque on left upper back with surrounding woozy erythematous patch.There was a complaint of mild itching over the lesion occasionally. Histopathological finding from verrucous plaque in center of the lesion showed hyperkeratosis, papillomatosis, and acanthosis. Simultaneously, spongiosis of epidermis and superficial perivascular lymphocytic infiltration in upper dermis was shown from erythematous patch of peripheral lesion. Based on the clinicopathologic finding, diagnosis of epidermal nevus with Meyerson phenomenon was made.After 1 month, surrounded eczema resolved spontaneously and epidermal nevus was completely excised. To our best knowledge, it has not been reported an epidermal nevus as preexisting lesion on the Meyerson phenomenon in dermatologic literature. Herein, we report a unique case of Meyerson phenomenon surrounding epidermal nevus.

P639 : Intralesional cryosurgery in the treatment of earlobe keloid scars

( Sang Ju Lee ),( Won Soon Chung ),( Jin Moon Kang ),( Young Koo Kim ) 대한피부과학회 2014 대한피부과학회 학술발표대회집 Vol.66 No.1

Mass and energy of erupting plasma associated with a coronal mass ejection in X-rays and EUV

Jin-Yi Lee,John C. Raymond,Katharine K. Reeves,Yong-Jae Moon,Kap-Sung Kim 한국천문학회 2015 天文學會報 Vol.40 No.1