다발성 골수종 환자에서 양측성으로 재발한 대상포진 1예

고동한 ( Dong Han Ko ),박상영 ( Sang Young Park ),윤태진 ( Tae Jin Yoon ) 대한피부과학회 2006 大韓皮膚科學會誌 Vol.44 No.12

Recurrent herpes zoster is rare and may be associated with various immunocompromised states. A 54-year-old woman who had previously been diagnosed with multiple myeloma, presented with severely-painful, grouped vesicles on the upper part of her right trunk area (T5-T7 dermatomes). Seven months before, she had been treated for herpes zoster on the left side of the lower trunk area (T10 dermatome). We report a case of recurrent herpes zoster which occurred bilaterally in a patient with multiple myeloma. The patient was treated successfully with famciclovir. (Korean J Dermatol 2006;44(12):1460~1463)

악성 매독 2예

고동한 ( Dong Han Ko ),배인규 ( In Gyu Bae ),윤태진 ( Tae Jin Yoon ) 대한피부과학회 2006 대한피부과학회지 Vol.44 No.10

Lues maligna (malignant syphilis), also called noduloulcerative syphilis, is a kind of cutaneous secondary syphilis, which presents virulent clinical features and is frequently associated with an immunosuppressed state. Though there are many possible debilitative diseases, it has recently been more frequently presented in the human immunodeficiency virus (HIV)-infected patients. Other causes are diabetes and chronic alcoholism. Prompt diagnosis and early treatment can result in a desirable recovery and prevent spread of the disease. We report two cases of lues maligna associated with the underlying diseases of HIV-infection and diabetes. The skin lesions in these cases showed favorable results after treatment with benzathine penicillin. (Korean J Dermatol 2006;44(10):1238~1241)

MC/DC 100% Test case를 활용한 Back-to-Back Testing

고동률 ( Dong-ryul Ko ),유영민 ( Young-min You ),박인권 ( In-kuen Park ),한일영 ( Il-young Han ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.2

차량 내 전장부품이 증가하고, 차량 OEM(Original Equipment Manufacturing)이 다양한 차종을 생산 판매함에 따라 다양한 SW(software) 형상이 개발되고 있다. 따라서, 기존에 개발된 SW 형상 과 변경된 SW 형상 간에 기능 일치성 검증에 대한 필요성이 증가하고 있다. 두 가지 SW 형상 간에 기능 일치성 확인을 위한 테스팅 방법으로 Back-to-Back Testing 이 있는데, 이는 각 SW 형상에 동일한 입력값을 주입하고 동일한 출력값이 산출되는 지 확인하는 테스팅 방법이다. Back-to- Back Testing 수행 시 Test case 설계가 필요한데, Test case 의 분량과 테스팅 종료기준에 대해서 아직 확립이 되어 있지 않다. 이제 본 논문에서는 MC/DC(Modified Condition /Decision Coverage) 개념을 이용하여 Test case 분량과 테스팅 종료 기준에 대해서 제시하고, 이를 적용한 사례를 설명한다. 본 논문에서 제시한 Test case 설계 기준을 적용하면, 제한적인 테스팅 일정과 인력을 만족하고, 기능 일치를 확인할 수 있는 충분한 테스팅이 가능할 것으로 판단한다.

경전철 교량을 위한 강합성 중공 기둥의 비선형 해석 모델

한택희(Han Taek Hee),박진동(Park Jin-Dong),고동수(Ko Dong-Su),임창섭(Lim Chang-Sub),민준호(Min Jun-Ho),강영종(Kang Young-Jong) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월

For the pier of a light railway bridge, a composite hollow column, which had enhanced strength and light weight, was suggested. In this study, its nonlinear analysis model was developed and a parametric study was performed. The suggested column model considered the confining effect and the material nonlinearity of concrete. To verify the suggested column model, its analysis results were compared with the test results from previous researchers. They showed that the suggested column model was reasonable and had accep도표 accuracy. The results from parametric studies showed that the thickness of the internal tube, concrete strength, and the hollow ratio of a hollow composite column significantly affected its behavior.

중독관리센터의 경제적 효과에 대한 체계적 고찰

한은아 ( Eunah Han ),황현아 ( Hyuna Hwang ),유지나 ( Gina Yu ),고동률 ( Dong Ryul Ko ),공태영 ( Taeyoung Kong ),유제성 ( Je Sung You ),좌민홍 ( Minhong Choa ),정성필 ( Sung Phil Chung ) 대한임상독성학회 2021 대한임상독성학회지 Vol.19 No.1

Purpose: The purpose of this study was to conduct a systematic review to investigate the socio-economic benefits of the poison control center (PCC) and to assess whether telephone counseling at the poison control center affects the frequency of emergency room visits, hospitalization, and length of stay of patients with acute poisoning. Methods: The authors conducted a medical literature search of the PubMed, EMBASE, and Cochrane Library databases. Two reviewers evaluated the abstracts for eligibility, extracted the data, and assessed the study quality using a standardized tool. Key results such as the cost-benefit ratio, hospital stay days, unnecessary emergency room visits or hospitalizations, and reduced hospital charges were extracted from the studies. When meta-analysis was possible, it was performed using RevMan software (RevMan version 5.4). Results: Among 299 non-duplicated studies, 19 were relevant to the study questions. The cost-benefit ratios of PCC showed a wide range from 0.76 to 36 (average 6.8) according to the level of the medical expense of each country and whether the study included intentional poisoning. PCC reduced unnecessary visits to healthcare facilities. PCC consultation shortened the length of hospital stay by 1.82 (95% CI, 1.07-2.57) days. Conclusion: The systematic review and meta-analysis support the hypothesis that the PCC operation is cost-beneficial. However, when implementing the PCC concept in Korea in the future, it is necessary to prepare an institutional framework to ensure a cost-effective model.

쑥뜸에 의해 발생한 켈로이드

남용호 ( Yong Ho Nam ),고동한 ( Dong Han Ko ),윤태진 ( Tae Jin Yoon ) 대한피부과학회 2006 대한피부과학회지 Vol.44 No.9

A 45-year-old woman presented with keloidal nodules induced by moxibustion, which is made from mugwort powder. Keloids are benign hyperproliferative tumors of dermal connective tissue which usually result from excessive responses to cutaneous trauma in predisposed individuals. The lesions tend to occur on the upper part of the body as firm, raised tumors with a glassy surface and well demarcated borders. There are several available methods of treatment including intralesional corticosteroid injection, cryotherapy, surgical excision, laser therapy, pressure, radiotherapy and interferon-α injection. We report a case of a moxibustion-induced keloid in a 45-year-old female patient, who presented with multiple, round-shaped, erythematous to skin-colored, firm, cicatricial nodules on the moxibustion-applied sites. (Korean J Dermatol 2006;44(9):1091~1093)

STEAM 프로그램을 적용한 과학수업이초등학생의 창의성과 과학교과 흥미도에 미치는 영향

김덕호 ( Deok Ho Kim ),고동국 ( Dong Gook Ko ),한명재 ( Myeong Jae Han ),홍승호 ( Seung Ho Hong ) 한국과학교육학회 2014 한국과학교육학회지 Vol.34 No.1

과학 기술 경쟁 시대라는 시대적 흐름에 따라 세계 주요 국가들이STEAM 교육에 주목하고 있다. 우리나라 과학교육의 목적이 과학적 소양을 지닌 창의적 인재 육성이라는 점에서 보면 STEAM 교육의 필요성은 부정할 수 없는 사실이다. 이에 본 연구에서는 초등학교6학년 과학 교과에서 활동과 흥미를 고려한 주제 중심의 STEAM통합교육 프로그램을 개발하여 초등학생의 창의성 및 과학교과 흥미도에 어떤 영향을 주는지 알아보고자 하였다. 본 연구에서 개발한STEAM 교육 프로그램은 6학년 각 단원별 마무리 활동에 단원 정리 및 심화. 보충활동으로 적용할 수 있도록 개발하였다. 주제별 활동중심의 프로그램으로 학생들의 과학 학습을 통해서 창의성 및 과학교과흥미 도를 높이는데 주안점을 두었다. 개발한 STEAM 프로그램을 J도내 3개 초등학교 학생들에게 사전. 사후에 투입한 결과, 실험 집단은 비교 집단에 비해 초등학생들의 창의성 및 과학 교과 흥미도가 유의미하게 향상되었다. 따라서 지속적이며 체계적인 STEAM 프로그램의 개발이 요구되며, 더 나아가서는 초등학교 전 학년에 걸쳐 적용할 수 있는 STEAM 프로그램을 개발하고 교육현장에서 적극적으로 활용하려는 노력이 이루어져야 할 것이다. According to trends in scientific technical competition, many countries around the world are interested in and focused on the STEAM integrated education. By observing the fact that the goal of our country`s science education is to cultivate creative workers who have scientific knowledge, the need for STEAM integrated education cannot be denied. Therefore, the purpose of this study was to develop the STEAM integrated program focused on themes that considered activities and interest in the grade 6 science subject in order to identify its influence on the creativity and interest levels of elementary students. The STEAM integrated education program in this study was developed so that it can be applied as a unit review or reinforcement activities in the closing activities per unit in grade 6. The focus was placed on heightening students` creativity and interest in science subject learning through a program focused on activities per theme. As a result of applying the developed STEAM integrated program in prior and post conditions on 3 elementary school`s students in J Province, it was discovered that significant improvement was found in the creativity and scientific interest of elementary students in the experimental group, compared to the control group. Therefore, continuous and systematic development of the STEAM integrated education program is required, and moreover, it must be developed for all elementary grade levels and efforts should be put into actively applying the program in the field of education.

급성 중독으로 응급실에 내원하여 사망한 환자의 원인물질 및 시간 분포

이현재 ( Hyeonjae Lee ),좌민홍 ( Minhong Choa ),한은아 ( Eunah Han ),고동률 ( Dong Ryul Ko ),고재욱 ( Jaiwoog Ko ),공태영 ( Taeyoung Kong ),조준호 ( Junho Cho ),정성필 ( Sung Phil Chung ) 대한임상독성학회 2021 대한임상독성학회지 Vol.19 No.2

Purpose: The purpose of this study was to investigate the cause of acute fatal poisoning and the time of death by analyzing the National Emergency Department Information System (NEDIS) of South Korea. Methods: The NEDIS data from 2014 to 2018 excluding non-medical visits were used for this study. The patients with acute poisoning were extracted using diagnostic codes. The toxic substances were classified into pharmaceuticals, pesticides, gases, artificial poisonous substances, and natural toxic substances. Patients were classified according to the time of death, place of death, and region. In each case, the most causative substances of poisoning were identified. Results: There were 380,531 patients including poisoning-related diagnoses, of which 4,148 (1.1%) died, and the WHO age-standardized mortality rate was 4.8 per 100,000. Analysis of 2,702 death patients whose primary diagnosis was acute poisoning, the most common cause of poisoning death was pesticides (62%), followed by therapeutic drugs, gas, and artificial toxic substances. Herbicides were the most common pesticides at 64.5%. The proportion of mortality by time, hyperacute (< 6 h) 27.9%, acute (6-24 h) 32.6%, subacute (1-7 d) 29.7%, and delayed period ( >7 d) were 9.8%. Conclusion: This study suggests that the most common cause of poisoning death was pesticides, and 60% of deaths occurred within 24 hours. The 71% of mortality from pesticides occurred within 6-24 hours, but mortality from gas was mostly within 6 hours. According to the geographic region, the primary cause of poisoning death was varied to pesticides or pharmaceuticals.