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박정우,마정화 한국세무학회 2006 세무학 연구 Vol.23 No.4
Park Jeong-woo*Ma Jeong-hwa** 박정우**마정화***
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해운 및 물류 종사자들의 LMX가 직무 스트레스에 미치는 영향: 조직구조와 정치적 기술의 조절효과
박정우 한국무역연구원 2022 무역연구 Vol.18 No.1
Purpose This study aims to investigate the effect of Leader-Member Exchange (LMX) on job stress, as well as the moderating effects of organizational structure and political skill. Design/Methodology/Approach The subjects of the study were employees in domestic shipping and logistics industries, and 435 questionnaires were collected for analysis. Findings First, it was found that LMX significantly reduced job stress. Second, the study shows that formalization moderated the effect of LMX on job stress. Specifically, the negative effect of LMX on job stress was stronger as formalization increased. However, it was confirmed that the moderating effect of centralization was not statistically significant. Third, political skill moderated the effect of LMX on job stress. Specifically, the negative effect of LMX on job stress was stronger as political skill increased. Research Implications These findings indicate evidence that formalization and political skill are important factors between LMX and job stress. It was confirmed that formalization has an effect on the perception and stress of employees in the organization. In addition, it was found that the intensity of job stress may vary depending on the level of network management ability. This research further expands the discussion of LMX research and suggests managerial implications by demonstrating the effect of LMX on job stress in the workplace.
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초등학교에서 학생 핵심역량의 영향 요인 탐색: 학교자치 변인을 중심으로
박정우 한국교육행정학회 2023 敎育行政學硏究 Vol.41 No.4
With the full implementation of the direct superintendent system, the discourse on "school autonomy" emerged, and full-fledged policy research was conducted in each region. This study explores variables that affect students' core competencies, to identify how school autonomy factors affect them, and to comprehensively explore influencing factors by further verifying the effects of student demographic and school background variables. A survey was conducted on fifth and sixth graders and homeroom teachers in Daejeon and Sejong City, and the responses of 167 teachers and 2,447 students were analyzed. The analysis method is a hierarchical linear model (HLM) at the student level-teacher level, factors affecting student core competencies were identified. The conclusion of the study is as follows. First, among the demographic variables of the student, the core competency of the student differed greatly depending on gender and whether basic education was reached. Second, the difference in student core competencies according to school background variables was extremely insignificant, and the difference according to whether or not an innovative school was not significant. Third, variables that have a static effect on student core competencies were derived from the curriculum of functional autonomy, student life, students, faculty, and sharing visions of structural autonomy, and detailed factors of school autonomy had more static effects than negative effects. This study suggests that individualized education for each student, autonomy of the curriculum, and active participation of school members in the operation of the school curriculum are important.
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국내분리 Aujeszky's disease virus의 실험적 감염 자돈에 대한 바이러스학적 연구
박정우,전무형,안수환,Park, Jeong-woo,Jun, Moo-hyung,An, Soo-hwan 대한수의학회 1990 大韓獸醫學會誌 Vol.30 No.2
To investigate the etiology, pathogenicity and virological properties of NYJ-1-87 strain of Aujeszky's disease virus (ADV) that was isolated from the diseased piglet in Korea, the virus at $10^{6.0}TCID_{50}/0.1ml$ was inoculated intranasally and subcutaneously into 30 to 35 days-old piglets. Results obtained through the experiments were summarized as follows. 1. Ten of the infected piglets were clinically observed for 15 days. On the 2nd day post-inoculation(pi), the signs of pyrexia, anorexia and convulsion were noted. On the 4th to 7th days pi, nervous signs of incoordination and intermittent spasm were shown in the most of piglets, and one out of 5 piglets infected intranasally was died with severe nervous signs at the 7th day pi. The signs became relieved on the 8th day pi and all of remainder were completely recovered on the 13th to 14th days pi. 2. In hematological study, prominent decrease in the number of total leukocyte and lymphocyte was shown in the ADV-infected piglets on the 6th day pi. On the 8th day pi, the cell numbers were slightly increased and returned to normal level on the 10th day pi. 3. Viral excretion of the ADV-inoculated piglets was examined by swabbing of nasal and oral cavities, and rectal feces. During the periods of the 3rd to 11th days pi, the virus was excreted intermittently from nasal and oral cavities, and rectal feces. The nasal excretions were shown the highest virus concentration of $10^{5.2}TCID_{50}/0.1ml$ at the 5th day pi. 4. Recovery of the inoculated virus from various organs of the piglets that were died or experimentally slaughtered was attempted, and the virus was isolated from the tissues of brain and tonsil by the cultured cell-inoculation method. The highest recovery rate was noted in the tonsil. By indirect immunofluorescence antibody assay using ADV-monoclonal antibody, the viral antigens were detected in tissues of spleen and liver as well as brain and tonsil on the 7th to 9th days pi. The virus was not isolated from blood and the tissues of lung and kidney throughout the experiments. 5. Titers of virus neutralizing antibody in the piglets experimentally infected with ADV became increased after the 6th to 9th days pi in both of intranasal and subcutaneous inoculation showing the highest titers of 64 to 128 on the 29th day pi. When the antibody levels were measured by radial immunodiffusion enzyme assay, the reactive diameter was enlarged to be positive after the 4th to 6th days pi in both of intranasal and subcutaneous inoculation showing the largest diameter of 13 to 14mm on the 29th day pi.
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