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박영배,이영우,오동진,고창순,서정돈,서봉관,오병회 대한내과학회 1986 대한내과학회지 Vol.31 No.5
To assess the change in left ventricular function after hospital discharge, 57 patients with acute myocardial infarction were studied before discharge and 26 of them after discharge as well with either or both of treadmill test and radionuclide ventriculography(RNV). Follow-up study patients were 2g men with mean age of 53.1. Their infarct locations were anterior in 16 cases, inferior in 8 cases and anterior and inferior in 2 cases; 21 cases were in Killip class I, 3 cases in II, and 2 cases in III. Follow-up study was performed 2~19 months(mean 7.3 months) after acute myocardial infarction. The results were as follows: 1) Predischarge study showed that a relationship is present between regional wall motion abnormality, Killip class, peak serum CK and left ventricular ejection fraction(LVEF). 2) Predischarge and follow-up treadmill tests showed no significant change. 3) Follow-up RNV showed worsening of regional wall motion only in 1 case: Other cases showed either improvement or no change in regional wall motion. 4) Overall patients showed a significant increase in LVEF on follow-up. By location, only anterior infarction showed a significant increase in LVEF. 5) Killip class I patients showed a significant increase in LVEF on follow-up. 6) Most cases in this study were uncomplicated myocardial infarction and they showed improved LV function(suggested by RNV) on follow-up. Treadmill test also seems to be valuable for evaluationg improvement in exercise capacity on follow-up. So it is recomended that treadmill test or RNV be performed after discharge to evaluate change in LV function objectively.
조직의 학습지향성이 조직성과에 미치는 영향과 상황요이의 조절효과에 관한 연구
박영배,박형권 한국인사관리학회 2003 조직과 인사관리연구 Vol.27 No.2
본 연구는 조직의 학습현상에 기반이되는 학습지향성 개념을 이용하여 조직의 학습정도가 조직성과에 미치는 영향 및 기업환경 리더십, 조직구조 등과 같은 상황변수들의 조절효과를 탐색적으로 분석하였다. 78개기업, 총 290명의 기업 종사자들 대상으로 수집된 자료를 분석한 결과는 다음과 같다. 첫째, 학습지향성이 조직성과에 미치는 영향에 대하여 분석한 결과, 학습지향성이 비재무적 성과인 조직혁신성, 조직몰입에 유의한 정(+)의 영향을 미치는 것으로 나타났다. 이러한 결과는 학습지향성이 조직의 혁신성과 밀접하게 관계되고, 종업원의 생성적(generate)몰입을 유발하여 조직의 내부적 이익에 기여할 수 있음을 의미한다. 둘째, 상황변수의 조절효과를 분석한 결과, 상황변수로 채택한 환경동태성, 변혁적 리더십 및 유기적 조직구조 모두가 학습지향성과 재무적 성과의 관계를 강화하는 것으로 나타났다. 이러한 결과는 기존 연구에서는 소홀이 다루어졌던 상황변수의 새로운 역할을 제시하는 것으로 상황변수들에 대한 역할 검증의 필요성이 재차 강조되는 점이다. 따라서 본 연구는 상황요인의 다양한 역할을 확인하고 이를 실증적으로 제시함으로써 학습이론에 대한 연구 기틀을 제공하고 현실적 이해를 돕고 있다는 점에서 큰 의의가 있다.
박영배,김유호,서정돈,최윤식,이영우,오병희,도문홍,최동주,전은석 대한내과학회 1987 대한내과학회지 Vol.32 No.3
In order to observe the aspects of prosthetic cardiac valve failure, we analyzed 26 cases of Redo operation among 1081 cases of valve replacemant performed from Jan. 1961. to July 1986. The results are as follows; 1) Crude Redo operation rate was 2.4%. 2) The most common cause or prosthetic cardiac valve failure was the primary tissue failure (73%) 8r the PVE was the 2nd (15.4%). 3) Mean valve implantation time was 47.7 months. Implantation time in the child group was shorter than in adult by 6.8 months, In the primary tissue failure group (19 cases) implantation time in the child was 42.8 months 8z in adult, 66.8 months. (P$lt;0.05) In conclusion, the durability of tissue valves was significantly decreased in the child age group because of increased propensity for calcification, so the preference of tissue valves especially in this age group should be reconsidered.
급성 심근경색증 초기 진단에 latex 응집을 이용한 혈청 myoglobin 측정의 임상적 의의
박영배,서정돈,최윤식,이영우,오병희,손대원,임하진,김유우,박명희 대한내과학회 1987 대한내과학회지 Vol.32 No.2
We evaluated the diagnostic usefulness of latexagglutination test for elevated serum myoglobin as a screening test in the early phase of acute myocardial infarction and 21 patients with chest pain mimicking acute myocardial infarction were included in this study. Result was compared with serum myoglobin level measured by radioimmunoassay (RIA) in every case. The Following results were obtained: 1) When serum myoglobin levels measured by RIA below 85ng/㎖ were regarded as normal, this test showed sensitivity of 82%, specificity of 95%. 2) In latex-agglutionation test for elevated serum myoglobin, test results were interpreted as negative, weakly positive and positive. If we regard weakly positive tests as positive, sensitivity was 93% and specificity was 62%. In contrast, if we regard weakly positive tests as negative specificity rose to 100% while sensitivity reduced to 75%. 3) Agreement rate of both test was k=0.59. It is suggested that latex-agglutination test for elevated serum myoglobin is helpful in ruling out acute myocardial infarction when test result is negative, and that it can be used as a screening test in the early phase of acute myocardial infarction because of its rapidity and simplicity in performing the procedure.
Effect of Soil Organic Matter Content and Nutrition Elements on Yield of Potato
박영배,노재승 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.2
A study of different levels of Nutrition Elements and the chemical properties of the soil was conducted to determine the yield performance of potato. Application of sulfur, potassium, and Magnesium significantly affected final height, dry matter content, and crispiness of potato. The final pH, organo-nitrogen, phosphorus,potassium, and magnesium content in the soil were significantly affected by S-K-Mg application.
Effect of Sewage Sludge Compost on Yield of Vegetable Crops
박영배,노재승 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.2
Two phases of experiment were conducted to produce compost using sewage sludge and sawdust as mixing materials to determine their chemical properties and the performance of selected test crops. The first phase was done to produce compost as potting media and the second phase was done to test the efficacy of the produced compost. With regard to some chemical properties of the compost, pH was moderately acidic (5.11 to 5.58)while the OM, N, P, and K contents of the compost were 23.8-35.9, 1.12-1.56, 254.9-555.7, and 40.4-62.6,respectively.