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오범진,황성오,홍은석,임종천,김선만,이진웅,이강현,임경수 대한응급의학회 1998 대한응급의학회지 Vol.9 No.1
Background and purpose: The purpose of this study is to compare two clinical predictive rules, the pre-arrest-morbidity(PAM) index and the prognosis-after-resuscitation(PAR) score, which predict failure to survive following in-hospital cardiopulmonary resuscitation(CPR). Method: The study population consisted of 162 consecutive adult patients who underwent CPR at Wonju Christian Hospital over a year period. The PAM index and PAR score were calculated from the most recent data available for each variable prior to cardiac arrest. Each predictive tool was compared between the group of discharge alive and the group of in-hospital mortality. Performance of the predictive scores was also compared by receiver-operating characteristic(ROC) curves where appropriate. Results: PAM index of study population was 4.39±2.69 and PAR score was 2.99±3.36. PAM index in the group of discharge alive was 1.87±2.79, and PAM index in the group of in-hospital mortality was 4.51±2.62. PAR score in the group of discharge alive was 0.75±1.75, and PAR score in the group of in-hospital mortality was 3.1±3.4. The PAM index identified 15 patients with a score>8, while the PAR score identified 39 patients with a score>4, none of whom survived. The sensitivity of the PAR score for the prediction of failure to survive was 25%, while that of the PAM index was 10%, neither index incorrectly identified a patient as a non-survivor who eventually survived. Both of predictive methods were not significantly different in the ROC curve. Conclusion: Although further comfirmation is necessary, PAM index and PAR score may provide useful prognostic information to physicians and patients involved with decisions about do-not-resuscitate orders.
김 원,최옥경,임경수 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3
Background. In 1996, our emergency department(ED) had 148.4 patients per day and an average time for managing simple and uncomplicated patients was 248 minutes. To relieve congestion, delay and conflict in ED, we have developed fast Track to treat patients with minor illness rapidly and effectively. The fast Track area is located in a separate area in front to the main department. The efficiency and effectiveness of new system and patient's satisfaction were investigated. Methods. All ambulatory patients(>15 years of age) were triaged and treated at Fast Track by emergency physicians. Patients, triaged as severe illness, were moved directly to main ED and the other patients with minor illness were managed in Fast Track. We analysed the patients who were managed at Fast Track from Jan. 1st 1997 through Nov. 30th 1997. The total time staying in Fast track from beginning of triage to final decision such as discharge or admission was recorded retrospectively. A questionnaire was obtained from random patients in the same period to evaluate the patient's satisfaction. Results. The number of patients who were managed in Fast Track was 13,378, and it was 55.8% of all adult patients who visited ED during the period. The average staying time was decreased significantly with time, (140.9 ±2.9 minutes in June, 125.4 ±2.8 minutes in July, and 97.7 ±1.0 minutes after July). The 75 percentile weighted average time was also decreased significantly;196 minutes in June, 107 minutes in July, 135 minutes from August to November(<0.01). The questionnaire were obtained from 107 patients. The results were revealed that 90 of 107 patients(84.1%) were satisfied with emergency care at Fast Tack, and the remaining patients expressed unsatisfied comments such as long waiting time(4.7%), overcrowding(1.9%), unsatisfactory care(1.9%). Conclusion. The Fast Track system could decrease patient's staying time and improve patient's satisfaction. In addition, the efficiency and effectiveness of the acute care in ED would be enhanced by managing minor illness in Fast Track rapidly and effectively.
Straight Wire Appliance를 위한 한국인 정상교합자의 치관 형태에 관한 연구
이원유,박영철,임경수 대한치과교정학회 1998 대한치과교정학회지 Vol.28 No.4
한국인에 적합한 preadjusted bracket을 개발하기 위하여 한국인 성인 정상 교합자 14명을 대상으로 crown angulation, inclination, in and out, molar offset angle을 구했다. 정상 교합자 14명의 cast를 3차원 스케닝한 후 스케닝한 모델을 대상으로 컴퓨터 프로그램을 이용하여 측정하였다. 이는 기존의 모델을 직접 수작업으로 측정할 때 보다 정확하고 빨리 측정할 수 있었다. 다음과 같은 결론을 얻었다. 1. 한국인 정상교합자의 각 치아의 치축 경사(angulation), 치관 경사도(inclination), in and out, molar offset angle을 구하였다. 2. 3차원 스케너와 컴퓨터를 이용하여 측정하였기 때문에 보다 정확하고, 빠르게 측정 할 수 있었다. The objects of this study were to analyze the crown angulation, crown inclination, molar offset angle, and crown in and out of the Korean adults having normal occlusion. 14 subjects (7 male, 7 female) were chosen in the 80 subjects who had ideal occlusion and beautiful profile we thought. The casts were obtained from the subjects, and then they were scanned with 3-dimensional scanner machine. We analyzed them with computer program based upon Andrew`s methods and the following results were obtained. 1. We got the norm of the crown angulation, crown inclination, molar offset angle, and crown in and out in the Korean adults. 2. The analysis using 3 dimensional scanner and computer program was more fast and accurate than the manual methods.
임경수,박석환 대구대학교 (한사대학) 산업기술연구소 1985 産業技術硏究 Vol.4 No.-
EVOP is a work process operation method to improve productivity and quality of product by changing minutely the activity levels of each factor. As a kind of experimental designs, this method can be used in the plant as well as laboratory to develop optimum work process conditions. EVOP method usually uses two or three factors, and for these cases Box and Hunter show how this method is facilitated by using simplified calculation rules and graphical presentations. But the numbers of actual factors impacting on the work process are more than four, therefore, this thesis is dealing with EVOP model with more than four factors by adjusting calculation rules. This adjusted EVOP model was empirically applied in H-chemical synthetic fiber industry. This empirical application of the model has brought the improvement of productivity and quality in the industry. The data of this empirical research were processed by NEC-100 computer.
임경수,Shaker A. Zahra 대구대학교 산업기술연구소 1993 産業技術硏究 Vol.12 No.-
The potential contribution of quality circles (QCs) to improving company productivity has attracted worldwide interest and research. This article reviews exiting empirical evidence on the contribution of QCs to productivity. It concludes that, although evidence on this contribution is equivocal, QCs may enhance the quality of working life (QWL), job environment, the motivational potential of the job satisfaction. These four variables are important for productivity.