• Korean Journal of Construction Engineering and Management
• /
• v.22 no.1
• /
• pp.55-62
• /
• 2021

The productivity of rebar-work and form-work was analyzed with data collected from an actual high-rise construction project, and the actual utilization rates of three tower cranes were also investigated. It was found that the average productivity of the form-work increased from 12.00~8.71(㎡/man·day) in the underground and above-ground/lower-floor to 11.94~20.73(㎡/man·day) in the standard floor. Comparing the productivity of core area to outer, the former was found to be about 11% higher. Moreover, the rebar-work productivity of the outer area(1.12 ton/man·day) was approximately 9.6% higher than that of the core area for the standard floor. The average utilization rates of three TC were surveyed to be about 63.49%, and it was revealed that rainy weather(6.1%), strong winds(6.1%), holidays(17.8%), TC lifting work(5.8%), and other failures and repairs(0.07%) were the causes of non-operation. These research results are expected to be beneficial data in planning and managing the process of high-rise RC construction works in the future.

• International Area Studies Review
• /
• v.21 no.1
• /
• pp.119-136
• /
• 2017

This study investigates the moderating effects of corporate mentoring on the relationship between entrepreneurship and start-up satisfaction. The research was designed to examine a direct relationship between the entrepreneurship on the start-up satisfaction. In addition, indirect impacts of corporate mentoring on the relationship between entrepreneurship and start-up satisfaction. Data was collected by distributing questionnaires through e-mail or direct visit to the participating companies in the Start-up Leading University Project, college start-up clubs, companies in university business incubating centers, and general entrepreneurs in Busan and Gyeongnam areas. Empirical data was then analyzed using the SPSS 18.0 statistical program. The results reveal that such categories as innovation and autonomy in entrepreneurship have a direct positive effect on entrepreneurial satisfaction and the corporate mentoring has a moderating effect only when autonomy has a direct positive effect on start-up satisfaction. It is implied that an improvement of start-up satisfaction may be attained only when mentoring programs are well accepted by entrepreneurs and their workers while working in a free and autonomous environment with a flexible corporate culture. This study may provide the theoretical and practical implications for start-up support organizations such as start-up support groups of Start-Up Leading University Project.

• 한국사회정책
• /
• v.23 no.2
• /
• pp.141-172
• /
• 2016

This study examines the employment conditions and labour experience of elementary after-school care teachers in South Korea. Based on the empirical data collected through in-depth interviews with after-school care teachers in Gwangju Metropolitan City, the study considers multifaceted problems faced by after-school care teachers in their workplace. The after-school care class is part of educational policies initiated and rapidly expanded by the Ministry of Education, resulting in the substantial increase of non-regular school workers. The irregularization of after-school care teachers illustrates that the common problems faced by female non-regular workers, such as social discrimination, exclusion and inequality, are also transplanted into the typical public sector. In the case of Gwangju Metropolitan City, during the past two years there have been evident increases both in under 15-hour short time contract care teachers and outsourcing of care classes. Temporary part-time contract care teachers suffer relentless job insecurity and experience poor working conditions, exclusion and discrimination within the workplace and labour alienation. In order to minimize the organized resistance of care teachers, school authorities implicitly individualize and isolate care teachers through hierarchization, the division of labour and the spatial division of classes between indefinite and temporary contract teachers.

• Journal of Digital Convergence
• /
• v.18 no.12
• /
• pp.377-387
• /
• 2020

The purpose of this study is a descriptive research study to identify the emotional labor, ethical climate, job satisfaction, and retention intention of nurses in general hospitals, and to identify the relationship between variables and factors influencing the retention intention. The study subjects were 198 nurses working in four general hospitals, and data were collected from September 18 to September 30, 2019 using a structured questionnaire. The collected data were analyzed by t-test, ANOVA, Pearson's correlation coefficients, and multiple regression using SPSS WIN 25.0. As a result of the study, there was a positive correlation between ethical climate(r=.345, p<.001) and job satisfaction(r=.388, p<.001), but emotional labor (r=-.153, p=.031) showed negative correlation. Factors influencing the retention intention of general hospital nurses are job satisfaction(β=.27, p=.001), age(β=.27, p<001), ethical climate(β=.16, p=044), and the explanatory power of the variable was 24.2%. In order to increase the retention intention of general hospital nurses, it is necessary to increase job satisfaction and create a sound ethical climate, and to develop an intervention program that can increase the retention intention by age.

• Journal of Digital Convergence
• /
• v.18 no.12
• /
• pp.435-444
• /
• 2020

This study is a descriptive research to grasp the effects of nurse practice environment on organizational commitment and to confirm the mediating effect of resilience. The subjects of this study were 150 nurses who agreed to participate in this study among clinical nurses working in university hospital and General hospital located in City J and City J and the data were collected through survey. The collected data were analyzed by SPSS 25.0 program. Mean scores were organizational commitment 3.38, nurse practice environment 2.62, and resilience index 3.45. There were significant differences on the organizational commitment index for : age, marriage, clinical experience, job satisfaction and a positive correlation between nurse practice environment and organizational commitment, between nurse practice environment and resilience index and between organizational commitment and resilience index. As a result of research, resilience partially mediated the relationship between nurse practice environment and organizational commitment. The findings suggest that in order to improve the organizational commitment of nurse, converged organizational commitment arbitration program strategies are needed to improve the nurse practice environment and resilience of nurses.

• Journal of the Korean Applied Science and Technology
• /
• v.38 no.3
• /
• pp.813-823
• /
• 2021

This study was conducted to identify the factors affecting the compliance of standard precautions for nurses working in long term care hospitals. As a result of the analysis, 8.50 points in perception of the standard precautions, 3.76 points in health beliefs(subcategories- 4.03 points in perceived sensitivity, 4.04 points in perceived seriousness, 3.91 points in perceived benefits, 3.54 points in perceived barrier, 2.92 points in cues to action), 37.90 points in compliance status of the standard precautions. The performance of the standard precautions was positively correlated with perception of the standard precautions(r=0.419, p=.001) and health beliefs (r=0.443, p<.001), perceived sensitivity (r=0.169, p=.044), perceived barrier(r=0.486, p<.001), perceived benefits (r=0.207, p=.013), cues to action (r=0.204, p=.014). The compliance status of the standard precautions was influenced by the perceived barrier(β=0.373, p<.001), cues to action (β=0.271, p<.001), perception of the standard precautions(β=0.245, p=.004)explanatory power was 32.5%.

• Korean Journal of Psychosomatic Medicine
• /
• v.28 no.2
• /
• pp.135-142
• /
• 2020

Objectives : To identify the relationship between somatization, stress, depression, anxiety, and psychological symptoms risk for nurses working in the intensive care unit. Create clinical evidence of psychosomatic medicine research and complement the meaning of somatization. Methods : Seventy of the mental health checkups conducted by the National Mental Health Center among the nurses using tools including Perceived Stress scale, Fatigue Severity Scale, Patient Health questionnaire-15, Korean Beck Depression Inventory, Korean Beck Anxiety Inventory, and Symptom Checklist-90-Revision. Results : 12.9% of the patients experienced more than moderate somatization. There was no statistical relationship between somatization and psychological stress perception, but feeling of anxiety and decreased self-confidence were related to the level of somatization. The group with severe somatization experienced more depression and anxiety. The group with high physical fatigue also had no statistical relationship with psychological stress perception, but had an effect on the feeling of tension, stress, or decreased control. Physical fatigue level was increased by experience of depression, not by anxiety. For psychological symptoms the higher the level of somatization, the higher the obsession and hostility was explored. In the linear regression model, stress, depression, and anxiety accounted for 39.3% of somatization and 16.1% of physical fatigue symptoms. Conclusions : We can estimate the decrease in stress cognitive symptoms, accompanying depression and anxiety, compulsion and hostility as characteristics of somatization. The causal relationship between somatization and psychological symptoms cannot be confirmed in this study, but the interrelationships are observed, can be referred to mediation strategies.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.22 no.1
• /
• pp.299-304
• /
• 2021

The purpose of this study is to understand the effect of physical therapist's vocational consciousness and emotional labor on organizational performance. The subjects of this study are physical therapists working in a total of 8 hospitals in Seoul from May 25, 2019 to June 30, 2019: 2 private hospitals, 2 semi-general hospitals, 2 general hospitals, and 2 university hospitals. It was conducted with 137 people. For the analysis, the SPSS program was used, frequency analysis, reliability analysis, and correlation analysis were performed, and a regression analysis was performed on the causal relationship between variables. First, as a result of examining the effect of the physical therapist's vocational consciousness on organizational performance, the higher the vocational consciousness factor, the higher the organizational performance, which means that it has a positive and significant effect on organizational performance. Second, as a result of examining the effect of physical therapist's emotional labor on organizational performance, it was found that the surface behavior factor, a sub-factor of emotional labor, had an effect on organizational performance. On the other hand, the factors of inner behavior were found to have no significant effect on organizational performance. This means that the higher the vocational consciousness perceived by the physical therapist, the higher the organizational performance, and the higher the surface behavior of emotional labor, the lower the organizational performance. This study is considered to be the basic data for preparing a plan to improve the organizational performance of physical therapists.

• The Plant Pathology Journal
• /
• v.37 no.1
• /
• pp.47-56
• /
• 2021

Plants protect against viruses through passive and active resistance mechanisms, and in most cases characterized thus far, natural recessive resistance to potyviruses has been mapped to mutations in the eukaryotic initiation factor eIF4E or eIF(iso)4E genes. Five eIF4E copies and three eIF(iso)4E copies were detected in Brassica rapa. The eIF4E and eIF(iso)4E genes could interact with turnip mosaic virus (TuMV) viral protein linked to the genome (VPg) to initiate virus translation. From the yeast two-hybrid system (Y2H) and bimolecular fluorescence complementation (BiFC) assays, the TuMV-CHN2/CHN3 VPgs could not interact with BraA.eIF4E.a/c or BraA.eIF(iso)4E.c, but they could interact with BraA.eIF(iso)4E.a in B. rapa. Further analysis indicated that the amino acid substitution L186F (nt T556C) in TuMV-UK1 VPg was important for the interaction networks between the TuMV VPg and eIF(iso)4E proteins. An interaction model of the BraA. eIF(iso)4E protein with TuMV VPg was constructed to infer the effect of the significant amino acids on the interaction of TuMV VPgs-eIF(iso)4Es, particularly whether the L186F in TuMV-UK1 VPg could change the structure of the TuMV-UK1 VPg protein, which may terminate the interaction of the BraA.eIF(iso)4E and TuMV VPg protein. This study provides new insights into the interactions between plant viruses and translation initiation factors to reveal the working of key amino acids.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.27 no.1
• /
• pp.53-59
• /
• 2021

The marine transport industry generally applies new technologies later than other transport industries, such as airways and railways. Vessels require efficient operation, and their performance and lifespan depend on the level of maintenance and management. Many studies have shown that corrective maintenance (CM) and time-based maintenance (TBM) have restrictions with respect to enabling efficient maintenance of workload and cost to improve operational efficiency. Predictive maintenance (PdM) is an advanced technology that allows monitoring the condition and performance of a target machine to predict its time of failure and helps maintain the key machinery in optimal working conditions at all times. This study presents the development of a marine predictive maintenance (MPdM; maritime predictive maintenance) method based on applying PdM to the marine environment. The MPdM scheme is designed by considering the special environment of the marine transport industry and the extreme marine conditions. Further, results of the study elaborates upon the concept of MPdM and its necessity to advancing marine transportation in the future.