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리더의 자기기만 행동이 팀학습에 미치는 영향: 심리적 안전감과 침묵풍토의 매개효과를 중심으로
서강석(Kang-suk Suh),정승철(Sung-Cheol Jung) 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.3
본 연구는 팀 리더의 자기기만 행동이 팀 학습에 영향을 미치는 과정에서 심리적 안전감과 침묵풍토의 이중매개 효과를 확인하고자 하였다. 이를 위하여 국내 일반기업에서 근무하는 직원 294명을 대상으로 설문조사를 실시하였으며, SPSS 21과 Process Macro v.3.3을 활용하여 자료 분석을 하였다. 연구 결과는 다음과 같다. 우선, 팀 리더의 자기기만 행동은 팀원들의 심리적 안전감과 부적 상관, 침묵풍토와 정적 상관, 팀 학습과 부적 상관이 있는 것으로 나타났다. 그리고 팀 리더의 자기기만 행동이 팀 학습에 영향을 미치는 관계에서 심리적 안전감과 침묵풍토가 각각 매개변인의 역할을 하는 것으로 나타났으며, 이들 심리적 안전감과 침묵풍토가 순차적으로 매개역할을 하는 이중매개효과 또한 확인되었다. 본 연구는 조직의 팀 성과 향상을 위해서 팀 리더의 진정성의 관리가 중요하다는 실무적인 의의가 있으며, 마지막으로 본 연구와 관련된 시사점 및 제한점이 결론 및 논의에서 다루어졌다. This study aimed to demonstrate the dual mediating effect of psychological safety(PS) and silence climate(SC) in the process of team leaders self-deception behavior(SD) influencing team learning(TL). We conducted a survey of 294 workers in domestic companies and analyzed the data statistically using SPSS 21 and SPSS Process Macro for hierarchical regression and bootstrapping. The results are as follows: 1. all correlation coefficients are significant showing that SD has positive correlations with SC and negative correlation with PS and TL, 2. simple mediation effects(SD-PS-TL and SD-SC-TL) are all significant, 3. the dual mediation effect of psychological safety and silence climate on the relation between team leader’s self-deception behavior and team learning(SD-PS-SC-TL) is verified. This study showed that the authenticity of team leaders could be an crucial element for organizational communication and effectiveness. Finally, limitations and suggestions for future research were discussed.
만성간염 환자의 혈청에서 중합효소연쇄반응을 이용한 HBV DNA 및 HCV RNA 검출소견
박용욱(Yong Uk Park),서강석(Kang Suk Suh),한상우(Sang Woo Han),김신묵(Sin Mook Kim),최성규(Sung Kyu Choi),서순팔(Soon Pal Suh),김세종(Sei Jong Kim) 대한내과학회 1996 대한내과학회지 Vol.50 No.5
N/A Objectives: It is well-known that chronic hepatitis can be caused by hepatitis viral infection, drugs and toxins, inborn errors of metabolism, and autoimmume disease. Hepatitis B (with or without superimposed hepatitis D) and hepatitis C viral infections are known as the common causes of chronic viral hepatitis. Recently there have been several reports that chronic hepatitis and chronic liver disease can be caused by the superinfection or co-infection of HBV and HCV. We detected HBV DNA and HCV RNA in patients with chronic hepatitis using polymerase chain reaction and compared polymerase chain reaction with enzyme immunoassay in evaluating the presence of a superinfection or co-infection of HBV and HCV. Methods : Using sera from 61patients with histologically proven chronic hepatitis (chronic active hepatitis' 51cases, chronic persistent hepatitis: 10cases), we checked the HBV DNA and HCV RNA using polymerase chain reaction. We also checked the HBV and HCV markers using enzyme immunoassay. Results: 1) Only HBV DNA could be detected in 37patients (60.7%). HBV DNA and HCV RNA were detected in 11patients (18%). Only HCV RNA was dectected in 4patients (6.6%). Neither HBV DNA nor HCV RNA was found in 9patients (14.8%). 2) HBV DNA and HCV RNA were detected in 11patients (18%) whereas HBsAg or anti-HBe and anti-HCV were seropositive in 4patients (6.5%). 3) The positive rates of HBsAg and HBV DNA were 83.6% and 78.7%, respectively, and the positive rates of HBV DNA in HBsAg-positive cases and in HBeAg-positive cases were 90.2% and 93.0%, respectively. 4) The positive rates of anti-HCV and HCV RNA were 11.5% and 24.6%, respectively, and the positive rates of HCV RNA in anti-HCV positive cases and in anti-HCV negative eases were 85.7% and 14.8%, respectively. Conclusion: It has been suggested that hepatitis B viral infection is the most common cause of chronic hepatitis in Korea, and that hepatitis C virus might also play an etiological role. In this study, we found that 18% of chronic hepatitis patients were superinfected or co-infected with HHV and HCV, and that polymerase chain reaction was more sensitive than enzyme immunoassay to detect HBV and HCV infection when superinfection or Qo-infection was suspected.
A Knowledge-Based Approach to Incorporate Learning Effect into Line-of-Balance Scheduling
Suh, Kang-suk 호남대학교 산업기술연구소 1996 산업기술연구논문집 Vol.3 No.-
Line-of-Balance (LOB) 공정계획은 반복되는 작업의 연속성을 적절히 유지함으로서 효율을 높이도록 관리하는 기법이다. 공사현장의 연속 반복되는 작업으로부터 얻게되는 학습효과는 노동생산성 향상에 크게 기여할 수 있다고 알려져 있다. 이러한 학습효과를 통한 노동생산성 향상을 LOB 공정계획에 이용 관리할 수 있도록 학습효과를 광범위한 이론적 배경을 통해 계량화하고 경험적 지식에 근거한 접근방법을 통해 개념적 model를 제시한다. The Line-of-Balance (LOB) Scheduling Technique allows the balancing of the repetitive operations such that each activity is continuously and efficiently performed. It is well recognized that learning effect provides better opportunities to achieve higher labor productivity in a repetitive-unit construction. A philosophical justification for the development of a learning model is attempted to produce a quantitative model for learning effect. A conceptual model using a Knowledge-based approach is presented for incorporating learning data into the Line-of-Balance methodology.
김규석,임영운,정중식,신상도,표창해,이중의,서길준,정성은,윤여규,박정배,서강석,유은영,임용수 대한응급의학회 2000 대한응급의학회지 Vol.11 No.2
Background: To review the important features and treatment modalities of phalloides syndrome. Method: We perfomed a retrospective analysis of 16 patients with phalloides syndrome who visited the Emergency Center of Seoul National University Hospital, Uijongbu St. Mary's Hospital, Gachon Medical College Hospital, and Kyungpook National University Hospital from July 1st to August 31st, 1998. Mann-Whitney U test was used for statistical analysis(p<0.05). Results: 9 were male and 7 were female. The mean age was 54 years(men 46 years, women 65 years). Fourteen cases(88%) occurred in Kyungpook area. All cases of phalloides syndrome resulted from mistaking toxic mushrooms for edible mushrooms. The doses of ingestion of mushroom were not available because the patient could not remember the exact amounts. The identification of mushrooms in 4 cases was confirmed by mycologist, 6 cases by mushroom photoatlas, and remained 6 cases were not confirmed. The initial symptoms of mushroom poisoning were abdominal pain, nausea, and watery diarrhea. The time intervals from the ingestion of mushroom to the onset of symptom were from 6 to 13 hours(mean 11.3±2.68 hours). The laboratory data showed the increased GOT and GPT, prolonged prothrombin time, elevated serum creatinine level, and decreased platelet count. The initial management of phalloides mushroom poisoning was done conservatively, but the early specific treatments such as gastrointestinal decontamination, administration of activated charcoal, IV penicillin or silymarin were not perfomed in all cases. The mortality rate was 18.8%. There were significant differences in total bilirubin, prothrombin time, platelet count, and serum creatinine between survival and non-survival group(p<0.05) Conclusion: It is important to know the morphological differences between edible and toxic mushroom for prevention of phalloides syndrome. If the patient with acute gastroenteritis has a history of mushroom ingestion, the emergency physician should suspect phalloides syndrome and start early proper treatment. For the identification of mushroom it is desirable to contact a mycologist.