• Journal of Labour Economics
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• v.42 no.3
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• pp.75-98
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• 2019

This paper examines the impact of on-the-job training (OJT) programs on turnover rates and employment status in the labor market. Exploiting the administrative data (the Employment Insurance Database), we apply the propensity score matching method to investigate 1) whether OJT participation increases the probability of remaining in the labor market after the job training, and 2) whether trainees are more likely to transition to a new employer. Our findings reveal positive effects of OJT on the continuous employment (2.4~5.3%p). We also observe that trainees show lower rates of turnover for some part of the study period, from 2008 to 2015.

• International Area Studies Review
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• v.22 no.1
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• pp.61-78
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• 2018

Foreign subsidiary operation modes can be broadly divided into horizontal subsidiaries and vertical subsidiaries. According to institutional theory, foreign subsidiary operation mode differs depending on the host country institution. This study examines the effects of formal and informal institution on the foreign subsidiary operational mode of Korean firms. As a result of the empirical analysis, the higher the cultural distance and the lower political risks, the more favored the vertical foreign operation mode than the horizontal foreign operation mode. On the other hand, the higher the economic freedom and the lower corruption, the more favored the horizontal foreign operation mode than the vertical foreign operation mode.

• Journal of Christian Education in Korea
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• v.65
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• pp.189-214
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• 2021

The aim of this research article is to investigate the life and educational ministry of friars, focusing on the Dominican friars, along with its influence on parish priests and laymen during late middle Ages. The friars' apostolic life and competent teaching ministry greatly contributed to the faith formation of the laity who desperately sought out sacred truth. In particular, the Dominican friars' teaching of orthodox theology and logical argument gave rise to the conversion of some heretics, including Cathars. In addition, their ministry helped parish priests maintain hold on the essence of the church and their apostolic vocation. Finally, the friars' educational ministry played a significant role in enabling the parish priests to take their responsibilities as confessors, teachers, preachers, and healers of souls.

• Journal of Korean Society of Transportation
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• v.32 no.2
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• pp.106-118
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• 2014

The objective of this study is to develop a methodology for evaluating the effectiveness of in-vehicle pedestrian warning systems. Driving Simulator-based experiments were conducted to collect data to represent driver's responsive behavior. The braking frequency, lane change duration, and collision speed were used as measure of effectiveness (MOE) to evaluate the effectiveness. Collision speed data obtained from the simulation experiments were further used to predict pedestrian injury severity. Results demonstrated the effectiveness of warning information systems by reducing the pedestrian injury severity. It is expected that the proposed evaluation methodology and outcomes will be useful in developing various vehicular technologies and relevant policies to enhance pedestrian safety.

• Journal of the Korean Chemical Society
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• v.59 no.5
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• pp.413-422
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• 2015

Proton exchange membrane (PEM), which transfers proton from the anode to the cathode, is the key component of the proton exchange membrane fuel cell (PEMFC). Nafion is widely used as PEM due to its high proton conductivity as well as excellent chemical and physical stabilities. However, its high cost and the environmental hazards limit the commercial application in PEMFCs. To overcome these disadvantages, various alternative polymer electrolytes have been investigated for fuel cell applications. We used densely sulfonated polymers to maximize the ion conductivity of the corresponding membrane. To overcome high swelling, dipole-dipole interaction was used by introducing nitrile groups into the polymer backbone. As a result, physically-crosslinked membranes showed improved swelling ratio despite of high water uptake. All the membranes with different hydrophilic-hydrophobic compositions showed higher conductivity, despite their lower IEC, than that of Nafion-117.

• Korean Journal of Construction Engineering and Management
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• v.9 no.3
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• pp.194-205
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• 2008

The production process of construction industry is different from thing of the general manufacturing, likewise various participants make temporary teamwork for success of the project through sharing of information. But, the each role of participants is Individually changed to step in construction process stage and moreover it has complicated, entangled interests. The CM(so it called Construction Management as an abbreviation word) system was inducted for the effective management and operation of construction project. The key of the CM success depends on the cooperative relationship relation to major participants. There are lots of studies and efforts for the performance measures of the CM, however existing performance index is only measured as the viewpoint of project owner. Therefore it needs to make up for balanced view through combination of the four-way view of participants. In this study, we should search for cooperative relationship of project participants, and then we should suggest to define the difference of project in their viewpoints.

• The Journal of Korean Association of Computer Education
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• v.18 no.3
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• pp.69-78
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• 2015

This study aims to analyze differences in the social presence of instructor by instructor's social intervention, the effects of the social presence of instructor on learning satisfaction, and learner characteristics related to the social presence of instructor. Data including subjects' demographic information, interactions, social presence of instructor, social presence of the course, and learning satisfaction were collected from 119 adult learners in an online university in Korea. The main findings of this study are as follows. First, the social presence of instructor was higher in the higher-aged group or active group on intranet message board than the lower-aged group or inactive group on the board. Second, instructor's social intervention increased the level of perceived social presence of instructor. However, the active group on the board has shown the highest level of perceived social presence of instructor, without instructor's social intervention. Third, there was a high correlation between instructor's social intervention and the social presence of instructor, while the variables affecting learning satisfaction were the social presence of instructor and social presence of the course. From the results of this study, it is suggested that instructors' social interventions be provided systematically for those who are not active in social interaction to enhance their learning satisfaction.

• Journal of The Korean Association For Science Education
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• v.34 no.5
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• pp.469-478
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• 2014

To provide students an alternative image of science and scientist, we developed five lesson plans that include scientists' joy, anger, sorrow, and pleasure in their life. Through the 10 hour lessons with the five topics, we investigated the effect of our program on students' image change toward scientists, their science learning, and their career development in science field. Twenty high school students participated in our program and five of them were analyzed. The qualitative data included opinionnaire survey before and after the program, field note, video recording, students' worksheets, and interview. The science episode lessons that reflect the human side of scientists were designed in five steps. The first step is the one about imaging of scientists, the second step is the one about reading scientists' episode in their life, the third step is the one about investigating human side of scientists, the fourth step is the one about feeling sympathy in scientists' context, and the last step is the one about judging human side of scientists. Students participated in this program got to feel familiarity in scientists as well as confidence in science. By obtaining the alternative image of scientists after the class, it is expected that students will play roles of well-prepared supporters with scientific literacy.

• (The) Korean Journal of Educational Psychology
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• v.32 no.1
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• pp.183-205
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• 2018

This study aims to demonstrate the longitudinal structural relationship between learner-centered instruction, learning motivation, growth beliefs, and academic stress. In particular, this study was carried out to focus on the structural effect of the related variables using data from the 3rd to 5th year of the Gyeonggi Education Panel Study. Results showed that while learner-centered instruction positively predicted both intrinsic and extrinsic motivation of learners, it predicted the former better. In addition, learner-centered instruction influenced academic stress through motivation, both intrinsic and extrinsic motivation were found to increase stress. Further, growth beliefs mediated motivation with learner-centered instruction; specifically, learner-centered instruction influenced learners' positive beliefs about growth, and learners who had growth beliefs had intrinsic motivation. At the same time, external motivation tended to be lower for learners who believed in the possibility of growth. Finally, the perceptions of learner-centered instruction affected academic stress through changes in growth beliefs. However, the other 3 factors (learner-centered instruction, learning motivation, and academic stress) were not statistically significant. In conclusion, learner-centered instruction was able to mitigate academic stress, demonstrating that this relationship is influenced by changes in growth beliefs rather than learning motivation, as previously studied. These results suggest that learners' perceptions and beliefs contribute to not only intrinsic motivation but also academic stress. Furthermore, it is suggested that learners need to change their learning environments in positive ways.

• Journal of the Society of Disaster Information
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• v.20 no.1
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• pp.192-198
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• 2024

Purpose: In order to establish a safety management system led by an orderer in the construction industry, the orderer should be positioned at the peak of the construction industry safety management system and a system that can effectively support safety supervisors who can assist the orderer's role should be reflected. Method: This study collected and analyzed data on the status of safety management of construction business owners through prior research on safety management of construction business owners and a survey on the actual condition of those involved in the construction business. Results: The top priority is to improve the safety awareness and safety management capabilities of the orderer, and through these efforts, the orderer-led safety management system will be established when a national consensus on the responsibility of the orderer, such as the Serious Accident Punishment Act and the Occupational Safety and Health Act, is formed in the event of an accident such as a serious accident. Conclusion: In order to establish a safety management system led by an orderer in the construction industry, it contributes to disaster prevention by positioning the orderer at the peak of the construction safety management system and reflecting a system that can effectively support safety supervisors who can assist the orderer's role.