인공 판막 환자에서 발생한 Listeria monocytogenes 심내막염 1예

신상엽,손준성,김형훈,민태훈,윤종욱,장현하,정숙인,오원섭,김성민,백경란,송재훈 대한감염학회 2002 감염 Vol.34 No.5

Pichia ohmeri에 의한 악성외이도염 1예

손준성,신상엽,민태훈,장현하,정숙인,오원섭,김성민,백경란,송재훈 대한감염학회 2002 감염 Vol.34 No.5

An Atypical Case of Plasmodium vivax Malaria after Initiating Adalimumab Therapy

( Sang Yop Shin ),( Gil Myeong Seong ),( Young Ree Kim ),( Jin Woo Kang ),( Jin Seok Kim ) 대한류마티스학회 2012 대한류마티스학회지 Vol.19 No.3

We report an unusual case of Plasmodium vivax malaria that occurred in a 22-year-old ankylosing spondylitis patient after initiating adalimumab therapy. P. falciparum malaria was initially included as a possible differential diagnosis due to hyperparasitemia and similar features in the peripheral blood smear. The patient was successfully treated with conventional therapy for P. vivax malaria.

Effect of Adolescents’ Experiences of Child Abuse and Neglect on Violence Against Teachers

Shin Myoung Sung(성신명),Jae Yop Kim(김재엽) 연세대학교 사회복지연구소 2018 한국사회복지조사연구 Vol.56 No.-

본 연구는 청소년의 아동학대와 방임의 경험이 교사에 대한 폭력에 미치는 영향을 파악하고, 학교 적응의 매개효과를 검증하는데 목적이 있다. 연구 조사는 2015년 12월 - 2016년 3월까지 실시되었으며, 전국에 있는 중·고등학생 2,155명을 대상으로 하였으며, 불성실한 응답을 제외한 2,144명을 분석하였다. 아동학대 및 방임, 교사폭력에 대한 실태 파악을 위해서는 SPSS 18.0을 활용하여 빈도분석을 실시하였으며, 연구 모델을 검증하기 위해서는 AMOS 23.0를 활용하여 경로 분석, 부트 스트래핑을 진행하였다. 연구 결과 청소년의 24.7%가 교사에 대한 폭력을 행사한 적이 있다고 응답하였으며, 가정폭력 피해경험이 교사에 대한 폭력에 미치는 영향에서 학교적응의 완전 매개효과를 발견하였다. 교사에 대한 폭력을 예방하고 해결하기 위해 청소년에 대한 가정폭력과 학교 적응에 대한 개입이 선행되어야 함을 제언하였으며, 학교 내 교사에 대한 폭력 대처 시스템 마련과 교사에 대한 폭력을 행사한 청소년에 대한 체계적인 개입 방안을 제안하였다. The purpose of this study was to examine the effects of child abuse and neglect on violence against teachers, through the mediating effect of school adjustment. Data were collected through a survey of 2,144 students from 8 middle schools and 13 high schools that agreed to participate out of 21 schools randomly selected from 21 school districts in Korea. Path analysis and bootstrapping method were used for analyses. The results show that 24.7% of the adolescents reported having experienced violence against teachers, and that school adjustment has a complete mediating effect between child abuse/neglect and violence against teachers. Based on these results, this study suggests interventions for child abuse and neglect and for school adjustment. Moreover, it proposes a management system for violence against teachers and a systemic intervention for adolescents who are using violence against teachers.

개흉술후 벽측흉막내에 카테테르의 수직적 거치 방법에 의한 통증관리

이성수,김태엽,신명근 대한마취과학회 1999 Korean Journal of Anesthesiology Vol.37 No.4

Background: Sufficient accumulations of local anesthetics in the extrapleural space promotes effective access to several intercostal nerves and, consequently, analgesia. The total volume of leakage of these anesthetics from the space can depend on the technique of extrapleural catheter insertion which is chosen. Methods: Twenty patients due for thoracotomy were randomly selected to be provided with postoperative pain relief by an extrapleural approach. Before the thoracic cavity was closed, appropriate spaces between parietal pleura and intercostal muscle were made with surgical dilators under direct vision. An epidural catheter was introduced at a longitudinal lie in a cephalad direction, before the thoracic cavity was closed. Bupivacaine 0.25%, with 1:200,000 epinephrine was injected in a 10 ml dose about 20 minutes before the end of anesthesia, and infused at a rate of 0.88 mg/kg/hour for 1 hour, 0.35 mg/kg/hour for 23 hours and 0.3 mg/kg/hour for the second day postoperatively. Results: The egree of analgesia with coughing and deep breathing was satisfactory to patients and thoracic surgeons. The average numbers of analgesic dermatomes obtained by pinprick tests, VAS, and Prince Henry pain scores were 5.2 0.5, 2.0 0.5 cm and 1.6 0.6, respectively. Changes in mean arterial pressure were insignificant, and heart rate increased at the postoperative hours of 1, 4 and 8 (P value < 0.05). FVC and FEV1 were restored to levels up to 67.2 and 71.0% of their preoperative values at the postoperative hour of 48. Conclusions: These results suggest that the technique of a catheter introduced at a longitudinal lie in a cephalad direction was effective and clinically useful for pain relief following thoracotomy regardless of some leakage of bupivacaine. (Korean J Anesthesiol 1999; 37: 624∼630)

An Experimental Investigation on the Tensile Behavior of Silane-Modified MMT/Epoxy Nanocomposites

Ha, Sung Rok,Rhee, Kyong Yop,Shin, H.H. Trans Tech Publications, Ltd. 2007 Key Engineering Materials Vol.353-358 No.3

<P>It is well-known that the mechanical properties of nanocomposites are better than those of conventional composites. One of problems in fabricating nanocomposites is a dispersion of nanoparticles in the composites. In this study, the effect of MMT content on the tensile characteristics of trifunctional silane-treated MMT/epoxy nanocomposite was investigated. It was found that the tensile strength and the elastic modulus increased by over 24% and 83%, respectively, as the content of MMT increases from 2wt% to 10wt%. The improvement of tensile strength and modulus with increasing content of MMT occurs because the reinforcing effect of MMT becomes greater than the deteriorating effect due to the interfacial debonding between MMT and epoxy as the MMT content increases.</P>

소화성 궤양의 재출혈 위험인자 및 에탄올 주입치료의 효과에 관한 연구

김상현,이진호,김성준,신원창,김관엽,문귀애,김필호,엄태찬 대한소화기내시경학회 1998 Clinical Endoscopy Vol.18 No.4

Background/Aims: Acute peptic ulcer bleeding is the most common cause of upper gastrointestinal bleeding, and needs urgent management in cases including large amounts of blood loss. Ernergency endoscopy was performed and evaluation was made on the risk factors of rebleeding in peptic ulcer patients and the efficacy of ethanol injection therapy. Methods: The clinical and endoscopic variables were evaluated according to the rebleeding rates and the efficacy of ethanol injection therapy for hemostasis and prevention of rebleeding in 161 cases including gastric ulcers (GU) with bleeding (M: F 134: 27, mean age 56.5 years) and 136 cases including duodenal ulcers (DU) with bleeding (M: F 111: 25, mean age 40.7 years). Background/Aims: Acute peptic ulcer bleeding is the mast common cause of upper gastrointestinal bleeding, and needs urgent managment in cases including large amounts of blood loss. Emergency endoscopy was perform~;d and evaluation was made on the risk factors of rebleeding in peptic ulcer patients and to efficacy of ethanol injection therapy. Methods: The clinical and endascopic variables were evaluated according to the rebleeding rates and the efficacy of ethanol injection therapy for hemostasis and prevention of rebleeding in 161 cases including gastric ulcers (Gj.J) with bleeding (M : F 134 : 27, mean age 56.5 years) and 136 cases including duodenal ulcers (DU) with bleeding (M : F 111 : 25, mean age 40.7 years). Results: 1. There wad no difference in age or gender ratio according to the incidence of rebleeding and shock between GU and DU. In GU, rebleeding was mast common in gastric bodies, failowed by angle and antrum. Posterior wall was the most common rebleeding direction, followed by anterior wall, greater curvature, and lesser curvature. In DU, rebleeding was more common in the bulbar portion than postbulbar portion. Posterior wall was the ghost common rebleeding direction, followed by greater curvature, anterior wall, and lesier curvature. The average size of ulcers with rebleeding was smaller than those without rebleeding. 2. In GU, rebleeding was more common in ulcers with active bleeding and visibly vessels, but without red spots or stigmata. In DU, rebleeding was common in ulcers only with active bleeding, but not with visible vessels, red spots, or stigmata. 3. Ethanol injection therapy (EIT) was successful in controlling bleeding in 91 out of 98 cases in the first trial. The second EIT was performed in 20 rebleeding cases resulting in 15 hemostasis with 92% efficacy. 4. The EIT could not decrease the rebleedng incidence in patiends with active bleeding, visible vessels nor red spots. In the EIT group, the shock incidence transfusion amount and the hospital stay were all noted to be higher than the untreated group. Conclusions: The rebleeding risk should be carefully evaluated and managed diffeently according to clinical and endoscopic findings. The EIT was effective in controlling bleeding peptic ulcers but not in the prevention of rebleeding. The application of the ETT in for prevention of rebleeding should be stratified according to the severity of the first bleeding.

국내 아치교 건설현황 분석

신중섭(Shin, Joong Seop),이상민(Lee, Sang Min),전세진(Jeon, Se Jin),한만엽(Han, Man Yop) 한국콘크리트학회 2012 한국콘크리트학회 학술대회 논문집 Vol.2012 No.11

Effect of MMT Concentration on Tribological Behavior of MMT/Epoxy Nanocomposite

Ha, Sung-Rok,Rhee, Kyong-Yop,Shin, Hyunho American Scientific Publishers 2008 Journal of Nanoscience and Nanotechnology Vol.12 No.9

<P>Numerous studies have investigated the material properties of clay/polymer nanocomposites, such as their fracture toughness, elastic modulus, and hardness. However, only a few researchers have studied the tribological properties of clay/polymer nanocomposites. This study investigated the effect of the montmorillonite (MMT) concentration on the tribological behavior of MMT/epoxy nanocomposites. Wear tests were performed on MMT/epoxy nanocomposites with four different clay concentration levels to characterize the improvement in wear behavior due to the MMT concentration. In order to examine the tribological mechanism depending on the clay concentration level, SEM analysis was performed on the worn surfaces after the wear tests. The results showed that the friction coefficient of an MMT/epoxy nanocomposite with a low MMT concentration was larger than that of a nanocomposite with a high MMT concentration. It is believed that the phenomena occur due to the action of MMT as a reinforcement and lubricant material and reduce the wear rate with increasing MMT concentration.</P>

자동차 사이드미러 공력소음 저감 연구

신용상(Yong-Sang Shin),추용주(Young-Ju Chu),은효준(Hyo-Jun Eun),이승엽(Seung-Yop Lee) 한국소음진동공학회 2018 한국소음진동공학회 학술대회논문집 Vol.2018 No.4