가토에서 Vecuronium bromide 의 용량에 따른 근육이완 효과

김동원,이동호,민경호,전세웅,유희구,김경헌,승익상,김교상,서정국 대한마취과학회 1987 Korean Journal of Anesthesiology Vol.20 No.6

The introduction of muscle relaxants was an epoch making event in the development of clinical anesthesia and their use has hecame essential to anesthesia practice. Vecuronium, one of the newest muscle relaxants, many advantages; it is .apid acting, non-accumulating, has minimals side reactions and is promptly antagonized by anticholinesterases. However, its pharmacological effect, like other conventional muscle relaxants depends upon the dose and is influenced br many factors including body temperature, blood flow, interaction with other drugs, antibiotics, diuretics and so forth, To obtain a dose·response relationship which is important for clinical use, the effect of the vecuronium in various doses on the neuromuscular block in rabbits was investigated. The results were as follows. 1) In the vecuronium 0.025 mg/kg group, maximal twitch depression was varied between 75 to 92% with a mean value of 84,9%. The spontaneous recovery index was 141.0 seconds (2.35 min). 2) In the vecuranium 7.75 mg/kg group, thmean maximum twitch depression and spontaneous recovery index were 98.4% and 218.6 seconds (3.64 min.) respectively. 3) In the vecuronium 7.1 mg/kg group, maximum twitch depression was 100% and the spontaneous recovery index was markedly prolonged to 627.8 seconds (10.35 min).

백서의 심실세동성 심정지 모델에서 해마신경세포 손상에 대한 단백질 합성저해제의 효과

오동렬,채장성,박승현,김세경,최세민,박제영 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4

Background: The goal of successful resuscitation is not only to stop the process of ischemia as soon as possible but also to overcome the secondary injury process after resuscitation, which involves a complex interplay of mechanisms. Brain damage accompanying cardiac arrest and resuscitation is frequent and devastating. Cells die by one of two mechanisms: necrosis or delayed neuronal death. Delayed neuronal death may require protein synthesis. Neurons in the CA1 subfield of the hippocampus are selectively vulnerable to death after injury by ischemia and reperfusion. Death of these neurons occurs after an interval of 1 or 2 days. We assessed the effects of a protein synthesis inhibitor, cycloheximide(CHX), on hippocampal neuronal death of rats by using the ventricular fibrillation cardiac arrest(VFCA) model. Methods: The effect of CHX(3 mg/kg, s.c.) on hippocampal neuronal death was studied in two groups of 18 rats each, one group being subjected to a 2-min VFCA and the other to a 3-min VFCA. Each group was divided into three subgroups: control(groupⅠ,Ⅱ) without subcutaneous injection of CHX, "esp-12" of group Ⅰ/Ⅱ treated with CHX 12 hours after return of spontaneous circulation (ROSC), and "exe-24" of group Ⅰ/Ⅱ treated with CHX 24 hours after ROSC. The coronal sections of the hippocampus levels were stained with hematoxylin-eosin after 72 hours of survival. The histologic damage score(HDS) was used to assign a score to the total number of damaged neurons counted in each of the hippocampal CA1 subfields. Results: 1. There were not significant differences in heart rates, blood pressures, blood sugar, and blood gas in group I & Ⅱ during the pre-arrest steady state or at 5 min and 30 min after ROSC. 2. In group I & Ⅱ, the HDS, were significantly reduced in rats(I exp-12, 1.1 ±0.6;Ⅰexp-24, 1.3 ±0.5;Ⅱ exp-12, 1.4±0.7; and Ⅱ exp-24, 1.8±0.8) treated with CHX 12 hours or 24 hours after ROSC than control rats(1,2.5 ±0.9;Ⅱ,2.9±0.8)(p<0.05). Conclusion: These results suggest that delayed hippocampal neuronal death from ischemic insult after ventricular fibrillation cardiac arrest followed by resuscitation can be prevented by a protein synthesis inhibitor, CHX. Further experimental studies of the action mechanism of protein synthesis inhibitors to delayed neuronal death and clinical applications are required.

Chalcogenization-Derived Band Gap Grading in Solution-Processed CuIn_<i>x</i>Ga_1–<i>x</i>(Se,S)₂ Thin-Film Solar Cells

Park, Se Jin,Jeon, Hyo Sang,Cho, Jin Woo,Hwang, Yun Jeong,Park, Kyung Su,Shim, Hyeong Seop,Song, Jae Kyu,Cho, Yunae,Kim, Dong-Wook,Kim, Jihyun,Min, Byoung Koun American Chemical Society 2015 ACS APPLIED MATERIALS & INTERFACES Vol.7 No.49

<P>Significant enhancement of solution-processed CuInxGa1-x(Se,S)(2) (CIGSSe) thin-film solar cell performance was achieved by inducing a band gap gradient in the film thickness, which was triggered by the chalcogenization process. Specifically, after the preparation of an amorphous mixed oxide film of Cu, In, and Ga by a simple paste coating method chalcogenization under Se vapor, along with the flow of dilute H2S gas, resulted in the formation of CIGSSe films with graded composition distribution: S-rich top, In- and Se-rich middle, and Ga- and S-rich bottom. This uneven compositional distribution was confirmed to lead to a band gap gradient in the film, which may also be responsible for enhancement in the open circuit voltage and reduction in photocurrent loss, thus increasing the overall efficiency. The highest power conversion efficiency of 11.7% was achieved with J(sc) of 28.3 mA/cm(2), V-oc of 601 mV, and FF of 68.6%.</P>

사상체질론의 정신의학적 타당성에 대한 연구

민성길,김동기,박진균,전세일 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.3

연구목적 : 건간한 의대상 312명과 신경증적 장애를 가진 환자 288명을 대상으로 하였다. 사상체질의 구별은 노정우 및 김달래 두 전문가에 의한 판정, 그리고 경희의대 사상체질 설문지(QSCC Ⅱ)에 의한 판정 등 3가지 방법에 의하였다. 연구 대상에게 정신과적 증상척도(SCL-90), 체질특성척도 및 성격척도를 사용하여 자가 평가하게 하였다. 각종 척도들의 타당도와 신뢰도는 입증되었다. 이 척도들을 통계적으로 분석하고 고전적 설명과 어느 정도 일치하는 지를 검토하였다. 연구결과 : 1) 3가지 분류방법간에 차이가 컸었다. 그 중 전문가의 직접적 면담에 의한 감별보다 QSCCⅡ 설문지형이 비교적 감별력이 컸다. 3) QSCCⅡ가 감별력이 비교적 크다고 하더라도 그 결과가 소음군의 대인공포-강박증, 불면-식용상실, 무력-예민-소화기-한기-피부증후군 그리고 정력부족등 신경증적 증상과 소극-비사교적, 내향형 성격 및 이성적 성격특징 등 몇가지 특징을 감별하는 데에만 비교적 유의하였고, 태음군의 특정인 독특한 신념, 온기, 활달-사교적 성격에 대해서는 부분적으로 그 특징을 감별하였다. 또한 소양군의 활달-사교형 성격과 감정형 성격의 특징 등은 극히 부분적으로 감별하였다. 결 론 : 이러한 결과는 현존하는 사상체질 구분방법에 일치점이 결여되어 있다는 것, 각종척도를 사용한 결과는 사상체질에 관한 고전적 설명을 부분적으로만 입증하고 있다는 것, 따라서 사상체질구분에 대한 향후보다 객관적인 연구가 필요하다는 것을 시사한다. Object : This study is to examine the validity of constitutional classification of Sa-sang medical theory. This theory classifies the human constitution to 4 types according to classical oriental philosophy on yin and yang. Subjects and Method : Subjects were 312 medical students and 288 neurotic patients with diagnosis of neurotic, stress related and somatoform disorders and minor depressive episodes according to ICD-10. Medical students were classified to 4 Sa-sang Constitution Classification(QSCCⅡ). For assessmnent of symptoms and signs, Korean version of SCL-90, a constitution scale and personality scale which were designed for this study were used. These instruments were found to be reliable and valid through statistical analysis. Subjects were asked to rate these scales. The data were analysed with factor analysis and factor scores were compared among 4 Sa-sang constitutions by ANOVA and t-test. The data from patient group were analysed with factor analysis and the results were compared with the Sa-sang medical theory. Results : Results of classification by 3 ways were inconsistent showing a significant difference among them. Among them, QSCCⅡ was most reliable. In QSCC Ⅱ, only the factor scores of factors of homophobia-obsession, weakness-sensitiveness-indigestion-chillness-skin syndrome, sexual weakness, passive-unsociable personality, introverted personality and rational, personality, were significantly high in So-um (small yin) group of medical students. A factor of warmnes and active-sociable personality were significantly high in Tae-um(big yin)group. Also active-sociable and effective pesonality was partly related with So-yang(small yang)group. Conclusion : These results suggest that those present classification methods inconsistent, that these methods are proving only parts of Sa-sang medical theory, and that objective and scientific studies are needed for reliability and validity of Sa-sang medical theory.

안와골절의 외과적 접근에 대한 증례보고

민승기,이은택,오승환,이동근,고세욱,송종민,최성림 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.3

The Orbital fracture which is often combined with midface fracture can cause decreased visual acuity, limitation of eyeball movement, diplopia, enophthalmos, etc. Traumatic orbital fracture causes change of orbital volume, results in diplopia and enophthalmos thus, accurate repositioning of displaced bone and reconstruction of orbital defect with autogenous materials(cranial, rib, iliac bone, cartilage and fascia lata) or alloplastic materials(gelatin film, polyglactin mesh, methylmethacrylate, Teflon, silicone, Supermid, hydroxyapatite and metal). The key point of reconstruction of orbit is accurate repositioning of displaced orbital floor, lateral, medial orbital wall and sufficient bonegraft in anatomical defect. As this cases, we obtained good results through transconjunctival and coronal approach who were required orbital reconstruction. Also, we accurately diagnosed orbital fracture with C.T., 3D model and good result for orbital reconstruction with sufficient parietal block bone graft during average 16.8 months follow-up.

WTO/SPS 분쟁사례연구 : 호주 연어분쟁을 중심으로

김동민,서세욱 한국농업정책학회, 한국축산경영학회 2003 농업경영정책연구 Vol.30 No.3

This study focuses on the quarantine dispute between Australia and Canada regarding salmon. Major issues on the dispute were rights and obligations (Article 2), harmonization(Article 3), risk management or consistency(Article 5). Dispute Settlement Body concluded that Australia's violation of Articles 5.1 and 2.2 but nonviolation of Articles 5.5 and 2.3. During the dispute settlement, some concepts have been cleared related to SPS, e.g., scientific facts needs to be provided by the claiming party, likelihood is a concept of probability but potential possibility is not, and cost/benefit concept is not a major factor affecting the dispute and the panel conclusion depends much on scientific facts. Korea needs to develop SPS system through investment, fostering SPS scientists, and strengthening risk management area.

볼링선수의 체격·체조성·운동능력과 경기력 비교

최민동,박세환,이영춘,박일규 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

1. Comparison between man and woman bowling player's bodyshape, motor ability, body composition and game score. 1) Generally, man's physique was better than woman's. 2) Man's grip strength, back strength, vertical jump, standing long jump, game score are better than woman's. 3) Woman has higher percent body fat, man has higher percent of total body water and lean body mass. 2. Comparison between man and woman bowling player's bodyshape, motor ability, body composition and game score from their difference of age. 1) Comparison of man's bodyshape has shown this result that 19years old bowling player had better ability of upper limb length and lower length than 17, 18 years. 2) Comparison of man's motor ability have shown this result that 17, 18, 19 years old player have the highest grip strength and motor ability in regular sequence,17 years old player has the best ability at zigzag run, 18 years old player has best ability at twist and touch. 3) Comparison of Woman's motor ability has shown this result that in order to 17, 18, 19 years old player has highest grip strength, back strength vertical jump, standing long jump, sit-ups, block transfer. 4) Comparison of capacity of a game score has shown this result that man and woman player who are in 17, 18, 19 years old have the highest ability in regular sequence.

Buerger병의 HLA항원에 관한 연구

김동일,김수신,오재욱,백세민 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.3

The purpose of this study is to investigate distribution of the HLA antigens among Korean patients with Buerger's disease and to compare the results of the previous studies. The subjects for this study consisted of 43 operated patients with Buerger's disease who have confirmed by the clinical criteria and angiographic findings and 262 normal korean healthy persons. The method of detection HLA antigens was the microtoxicity test deviced by Terasaki. The observed data are summarized as follows 1. The frequencies of HLA-A2, A3 and A24 were significantly higher among the patients with Bueraer's disease than in the control. 2. The frequencies of HLA-B35, B44, B5l, Bw6O and Bw6l were significantly higher among the patients with Buerger's disease than in the control. 3. By using Bonferoni inequality method, the only Statistically significant HLA antigens were HLA-A2, A24, B35 and B51.

강유전체 박막 커패시터 하부전극에 관한 연구

임동건,정세민,최유신,김도영,이준신 성균관대학교 1997 학술회의지원논문목록집 Vol.1997 No.-

We have investigated Pt and RuO₂as a bottom electrode for a device application of PZT thin film. The bottom electrodes were prepared by using an RF magnetron sputtering method. We studied some of the property influencing factors such as substrate temperature, gas flow ratem and RF power. An oxygen partial pressure from 0 to 50% was investigated. The results show that only Ru metal was grown without supplying any ‬O₂gas. Both Ru and RuO₂phases were formed for ‬O₂partial pressure between 10-40%. A pure RuO₂phasewas obtained with ‬O₂partial pressure of 50%. A substrate temperature from room temperature to 400°C was investigated with XRD for the film crystallinity examination. The substrate temperature influenced the surface morphology and the resistivity of Pt and RuO₂ as well as the film crystal structure. From the various considerations, we recommend the substrate temperature of 300°C for the bottom electrode growth. Because PZT film growth on top of bottom electrode requires a temperature process higher than 500°C, bottom electrode properties were investigated as a functiona of post anneal temperature. As post anneal temperature was increasedm the resistibity of Pt and RuO₂was decreased. However, almost no change was observed in resistibity for an anneal temperature higher than 700°C . From the studies on resistivity and surface morphology, we recommend a post anneal temperature less than 600°C.

폐부종과 심정지가 발생한 페노바비탈 중독환자

오동렬,이운정,박규남,김세경,김영민,이환,유은영,최경호,정시경 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

Phenobarbital is a long-acting barbiturate causing generalized depression of neuronal activity in the brain. Its effect is primarily achieved through enhanced GABA-mediated synaptic inhibition. Its use as an antiepileptic agent was first described in 1912. Before the introduction of phenytoin, phenobarbital is used as sedative-hypnotics. It is used for the treatment of epilepsy and status epilepticus. All barbiturates, including phenobarbital, have a high potential for abuse. They were frequently used for suicide attempts in the past, but they have in large part been replaced by benzodiazepines. The onset of symptoms depends on the drug and the route of administration. Mild to moderate barbiturate intoxication resembles ethanol inebriation with slurred speech, ataxia, and lethargy. Severe acute barbiturate intoxication is life threatening. Early deaths are generally cardiovascular-related. Hypotension, shock, pulmonary edema, and cardiac arrest that occurs with large doses are caused by depression of central sympathetic tone and as well as by direct depression of cardiac contractility. The potentially fatal oral dose of phenobarbital is 6-10g. We describe an 23-year-old woman with pulmonary edema, and cardiac arrest ingestion of 18grams of phenobarbital. She was completely recovered by successful cardiopulmonary resuscitation and homoperfusion. We report a case with literature review.