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주재동,이의웅,김준배,박광호,김형곤 大韓顎顔面成形再建外科學會 1994 Maxillofacial Plastic Reconstructive Surgery Vol.16 No.4
Authors have studied retrospectively the facial nerve injury after TMJ surgery through the preauricular approach routine. The study material used was 4 patients of all 113 patients who were diagnosed as internal derangement and have been operated from March 1989 to February 1991 in Youngdong severance hospital, and were induced postoperatived facial nerve injury. The patient group who had the postoperative injured facial nerve was recognized degree of injury using the diagnostic method, Electromyography(EMG) and Nerve conduction test(NCT) which are used widely at present and was treated as conservative care and we identified the recovery time as the same method. The results as follows : 1. The meticulous care and precious surgical technique are needed in both operation and postoperation. During the TMJ surgery, the excessive retraction of the flap and frequent use of nerve stimulator and electric surgical knife should be avoided as possible and postoperative hematoma and swelling should be minimized. 2. The 4 patients were experienced with the postoperative facial nerve injury of all 133 patients who had been operated the TMJ surgery through the routine preauricular approach on our hospital. And the incidence of postoperative facial nerve injury happened was about 0.3% and its incidence was relatively low comparing with any other previous reports. 3. EMG and NCT were considered as useful methods which can diagnose the nerve injury objectively and identified the effect of treatment and recovery time. 4. The faical nerve-injured patients who were induced postoperatively after TMJ surgery, were diagnosed as second-degree nere injury through the EMG and NCT. And the patient group was treated well as conservative physical therapy for about 2 to 4 months.
연폭로여성근로자들에서의 생물학적 연폭로 지표들의 상호관계
남택승,한구웅,김형아,김정만,이광묵 가톨릭대학 산업의학쎈타 산업의학연구소 1986 韓國의 産業醫學 Vol.25 No.3
For the purpose of obtaining of an effective biological monitoring data in terms of evaluation the health consequences of lead absorption, the female workers in the electronic industry who have been exposed to low-level lead occupationally were chosen as the subjects of our studies. We observed the 9 parameters in not only 305 lead-exposed female workers who have been exposed to lead occupationally also 254 normal female subjects who have not been exposed to lead occupationally. The parameters chosen for this study were as follows, blood lead (PbB), urine lead (PbU), δ-aminolevulinic acid in urine(ALAU), coproporphyrin in urine(CPU), zinc protoporphyrin in whole blood(ZPP), hemoglobin(Hb), hematocrit(Ht), δ-aminolevulinic acid dehydratase(ALAD) activity & ALAD activity ratio(A/R; absorbance at substrate pH 6.6/absorbance at substrate pH 5.8). The results obtained were as follows: 1. The average age of the lead-exposed female workers in the electronic industry and in the normal female subjects were 20.5±4.2 years and 21.7±3.5 years, respectively. 2. The average work duration of the lead-exposed female workers in the electronic industry was 26.4±19.4 months 3. The mean value of PbB of the lead-exposed female workers in the electronic industry and in the normal female subjects were 30.18±6.64㎍/100ml and 21.61±3.84㎍/100ml respectively. 4. In the lead-exposed female workers of the electronic industry and of the normal female subjects, the mean value of ZPP were 36.22±0.69㎍/100ml and 24.64±7.21㎍/100ml, respectively 5. In the lead-exposed female workers of the electronic industry and of the normal female subjects, the mean value of Hb were 13.98±0.57g/100ml and 14.09±0.66g/100ml, respectively. 6. The mean value of the lead-exposed female workers in the electronic industry were 55.07±17.61㎍/1 for PbU, 1.93±0.69mg/1 for ALAU, and 49.74±22.79㎍/1 for CPU, while in the normal female subjects, 44.27±15.76㎍/1 for PbU, 1.46±0.55mg/ 1 for ALAU, and 38.66±17.99㎍/1 for CPU. 7. Among various pairing of the parameters of lead exposure in the female lead-exposed workers and in the normal female subjects, the correlation between PbB and ZPP showed the highest coefficient value.
Insider Trading around Seasoned Equity Issues
Kim,Chan Wung,Chang,Young Kwang 成均館大學校 韓國産業硏究所 1995 韓國經濟 Vol.21 No.2
이 연구는 신규 유상증자발행의 정보효과에 관한 분석이다. 기존 연구에서의 부정적인 정보효과를 유상증자발행 발표 전후의 內部者 去來를 이용해서 조사한다. 연구 결과는 內部者들이 보통주 발행전과 후에 모주 자사주식을 판매하는 것으로 보여준다. 內部者들이 자사의 위험이 증가하는 것을 예견하여 자사주식 소유를 감소시키는 것으로 보인다.
김창락,최광섭,조찬희,김진웅 한국화학공학회 1990 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.28 No.4
물질전달이론에 근거한 시멘트 고화체의 세 가지 침출모형을 제시하여 비교해 보았다. 시멘트 고화체의 침출에 있어서 확산식 사용의 가능성과 확산식을 사용할 때 표면농도가 포화농도에 빠르게 접근한다는 가정의 타당성을 보였다. Three leaching models of cement waste-form based on mass-transfer analysis are compared. The applicability of diffusion equation to predict cement waste-form leaching and the reliability of the assumption used in the diffusion-controlled leaching model that the waste-form surface concentration is rapidly approaching the saturation concentration of the dissolved species are confirmed.
( Gun Wung Na ),( Sang Goon Shim ),( Kil Jong Yu ),( Dae Hyeon Cho ),( Chang Uk Jeong ),( Ji Eun Oh ),( Hyun Chin Cho ),( Kwang Min Kim ),( Hyoun Soo Lee ),( Man Je Park ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: In men, erectile dysfunction (ED), which is defi ned as the inability to achieve or maintain an erection suffi cient for satisfactory sexual performance, is an important issue. There were extensive investigations in clinical and pathophysiological mechanisms with sexual dysfunction during the last decade. However, ED in patients with chronic viral hepatitis has been investigated in few and limited studies, which are often not comparable because they use different survey and patient-sampling methodologies. Moreover, few have evaluated the association of ED and depression in patients with chronic viral hepatitis. Therefore, we assessed the prevalence of ED, and their association with depression in patients with chronic viral hepatitis. Methods: This cross-sectional study was conducted from August 2013 through January 2014. All outpatients with chronic viral hepatitis between the age of 18 and 80 years were considered eligible. The exclusion criteria included well established causes of erectile dysfunction such as liver cirrhosis and alcohol abuse. Erectile dysfunction was assessed with the International Index of Erectile Function-5 (IIEF-5) scale. The Beck Depression Inventory (BDI) scale was used to assess depression of the patient. Results: The prevalence of erectile dysfunction among the patients with chronic viral hepatitis was 40%. Age, employment, peg-interferon, IIEF-5 scores and BDI scores were statistically associated with erectile dysfunction. And also, IIEF-5 scores correlated negatively with age, employment and BDI scores. In a multiple logistic regression analysis, age and depression were independently associated with erectile dysfunction. Conclusions : Patients with chronic viral hepatitis have a high prevalence of erectile dysfunction. Age and depression are independent factors of erectile dysfunction in male patients with chronic viral hepatitis. Evaluation of depression must be included to properly manage erectile dysfunction.
Streptozotocin 유도당뇨백서에서의 비반세포에 대한 연구
김광빈(Kwang Bin Kim),이의웅(Eui Wung Lee) 대한구강악안면외과학회 1983 대한구강악안면외과학회지 Vol.9 No.1
This study was initiated to observe what, if any, changes of the number and morphology of Mast Cells, and Mucopolysaccharide of ground substance take place in lamina propria of tongue and buccal mucosa of Streptozotocin-induced diabetic rats. The results were as follows. 1. Mast Cell density was decreased markedly in experimental group. 2. Mast Cell density of the tongue was larger than that of the buccal mucosa in both normal and experimental group. 3. The populations of mast cells were not changed in accordance with the experimental time intervals. 4. The periodic acid-Schiff s reaction for mucopolysaccharide was increased at first in a few days in experimental group, but not prominent after 7 days. 5. The pancreatic islet cells, especilly β cells, were degenerated and necrosed in experimental groups.