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서중석,강신몽 大韓法醫學會 1996 대한법의학회지 Vol.20 No.2
During the last few years the traumatic basal subarachnoid hemorrhage(SAH) has been recognized that blows to the neck, head and face can give rise to fatal SAH because of tearing of the intrathecal course of a vertebral artery or basilar artery. No doubt a number of SAH are due to rupture of non-aneurysmal vessels or aneurysm too small to find, but unrecognized vertebral artery trauma would have accounted for remainder. In these cases, there may be no external sign at all. Unfortunately the deep or lateral portion of neck is the area that is not routinely dissected at autopsy. This is probably why this syndrome was not recognized until a few years ago. The mechanisms of injury and hemorrhage have been inadequately explored and demonstrated due to absence of appropriate and adequate anatomic dissection. According to the current literature on the traumatic basal SAH, the cause of death is now hypothesized to have been a tear in the vertebral artery associated with hyperextension and rotation.
강신몽,이원태,이한영,서중석,최영식,권일훈,정낙은 大韓法醫學會 2000 대한법의학회지 Vol.24 No.2
The authors analysed 53 cases of sudden cardiac death(SCD) without prominent structural abnormalies of heart out of witnessed 300 cases. Thirty four cases were associated with sleep and 19 with activity or rest. Twenty one cases were classified as having normal hearts, and the rest as structurally mild abnormal ones. Male was predominant, and almost of the victims were suffered in their twenties or thirties. All cases collapsed instantaneously or in very short time with various and not specific terminal symptoms. Inducing or trigger factors are not clarified in almost of the cases. Mechanisms or causes of death could not be defined clearly. We concluded that careful heart examination with detailed clinical history under the appropriate postmortem investigation system is only effective approach for the true mechanism and cause of death.
박형일,신석주,이헌창,장서일,김태옥 한국산업안전학회 2002 한국안전학회지 Vol.17 No.3
The runaway reaction was analyzed experimently and theoretically at the batch styrene suspension polymerization process. In the experiments, the reaction temperature with time was measured at various experimental conditions. According to the experimental results, the risk of the runaway reaction was increased with increasing the ratio of the monomer(styrene, M) to the dispersion medium(water, W), the concentration of the initiator(BPO), and the monomer mass, respectively. And simulation results showed that the runaway reaction was significantly affected by the reaction rate constant of the propagation and that the phenomena of the runaway reaction occurred at about 70% conversion. Also, we found that the runaway reaction did not occur under the operation condition of below 0.5 for M/W, approximate 3 wt% BPO, and below 75℃ for the cooling temperature.
진성 복압성 요실금 환자에서 복강경하 방광경부현수술의 유용성: 타술식과의 비교 연구
김용태,엄민식,이석영,신관희,서정원,윤석중,이상철,김원재 충북대학교 의학연구소 2001 忠北醫大學術誌 Vol.11 No.2
연구목적: 진성 복압성 요실금의 치료법으로서 복강경을 이용한 Burch 수술을 타수술법과 비교하여 그 유용성을 알아보고자 하였다. 대상 및 방법: 진성 복압성 요실금을 주소로 본원 비뇨기과에서 수술을 시행받은 44명의 환자를 수술법별로 분류하여 수술법에 따른 성공률, 수술 시간, 입원 기간 및 합병증의 빈도를 비교 분석 하였다. 결과: 전체 환자에서 수술 성공률은 86.4% 였으며 이들 중 복강경을 이용한 Burch 수술군에서는 성공률이 100% 이었다. 복강경을 이용한 Burch 수술군은 타수술군에 비하여 입원 기간이 짧았다. 복강경을 이용한 Burch 수술군은 합병증이 매우 경미하였으며 전체 환자의 31.8%에서 단기간의 배뇨곤란을 호소하였으나 장기간의 배뇨곤란은 없었으며 슬링 수술군에서는 3례(16.7%)에서 심한 절박성 요실금을 호소하였다. 결론: 복강경을 이용한 Burch 수술은 높은 치료 성공률과 낮은 합병증의 빈도를 나타내어 진성 복압성 요실금의 치료에서 매우 우수한 수술법으로 사료된다. Purpose: We performed this study to investigate the usefulness of laparoscopic Burch colposuspension as a treatment of genuine stress incontinence compare to other anti-incontinence operation. Materials and Methods : We analyzed success rate, operation time, admission day, and complication rate of various anti-incontinence operations in 44 genuine stress incontinence patients who have been received operation in our hospital. Results : Overall success rate was 86.4%, but laparoscopic Burch coposuspension showed 100% success rate. Laparoscopic Burch colposuspension required shorter admission day compared to other anti-incontinence oparations. Complication rate was lower in laparoscopic Burch colposuspension group. Short-term voiding problems were identified in 31.8% of total patients but 3 patients(16.7%) who have received sling operation complained severe urge incontinence. Conclusion : Laparoscopic Burch colposuspension is considered as an effective surgical method for genuine stress incontinence due to high success rate and low complication rate.
일개 의과대학에서 기존의 강의 평가에 대한 학생들의 반응
박석건(Seok Gun Park),서대현(Dae Hyun Seo),서수연(Su Yeon Seo),서영승(Young Seung Seo),송승관(Seung Kwan Song),신경황(Kyung Hwang Shin) 한국의학교육학회 2003 Korean journal of medical education Vol.15 No.3
Purpose: The evaluation of a lecture by students is one of the good way to improve a lecture. In one medical school, we started one-year-integrated-lecture curriculum for sophomore. And we evaluated lectures using formal lecture evaluation sheet after completion of each integrated lectures. The results were fed back to lecturers. But lecturers were indifferent to the results. So we performed this study to evaluate the current lecture evaluation method. Methods: Answering patterns of evaluation sheets were reviewed. 50 students entitled to integrated lectures were given structured questions. 44 of them recovered. And randomly selected 10 students were interviewed. Results: Analysis of evaluation sheets showed that some students checked the items just for fun. More than half of the students answered that they did not check the questions seriously. Reasons why the evaluation of lectures were not going well were; students were not trained to evaluate something; evaluation sheet was not designed to evaluate individual lecturer; listed items were too many in number and inappropriate; some students were suspicious about the impact of evaluation of lectures. In addition to this, it was revealed that students thought the timing of evaluation of lecture was important, too. Conclusion: Indifference of lecturers to the results is one form of resistance to the evaluation of lectures by students. To make evaluation of lectures effective, numbers and contents of evaluation items must be selected carefully, students need to be trained, and adequate evaluation timing should be determined with frequent feed backs.
서신석(Seo Shin-Seok),이건호(Lee Keon-Ho),정은혜(Jung Eun-Hye),노현승(Roh Hyeon-Seung),김정환(Kim Jung-Hwan) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(구조계)
Recently in Europe, the use of gypsum based mortar has increased for interior finishing materials because of eco-friendly needs. Thus, the purpose of this study is to investigate the effects of various factors such as curing temperature, relative humidity, and mixing water on the mechanical properties of gypsum based mortars for developing u-hernihydrated gypsum based mortar. The linear expansion was decreased according to the higher curing temperature, the lower relative humidity and the higher mixing water in gypsum based mortars. Especially, the compressive strength depended on moisture content more than cement based mortar. In other words, compressive strength of gypsum based mortar was increased according to the drier specimen. On the other hand, when dried mortar absorbed moisture, compressive strength decreased suddenly. However, when if specimen was dried again, compressive strength was recovered.