• The Journal of Asian Finance, Economics and Business
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• v.9 no.6
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• pp.175-181
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• 2022

Malmendier and Tate (2005) and Aktas et al. (2019) suggested that overconfident managers will invest if they have sufficient internal funds. Still, they will save internal funds instead of reducing investment if they have insufficient internal funds because they perceive more substantial financial constraints than other managers. This study examines whether overconfident managers will not invest when the financial crisis makes it difficult to raise external funds. In particular, during the financial crisis in Japan, banks simultaneously provided active monitoring and financing to firms with strong relationships with banks. Therefore, this study can also examine the relationship between overconfident managers and bank behavior by focusing on Japanese firms. This study examines whether overconfident managers increase their investment in firms with strong relationships with banks during the financial crisis. The results of this study showed that overconfident managers, especially their firms with strong relationships with banks, reduce investments more than other managers during the financial crisis. This study suggests that Japanese banks reduced financial constraints and exerted strong corporate governance on Japanese firms during the financial crisis.

• International Journal of Advanced Culture Technology
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• v.10 no.3
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• pp.156-163
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• 2022

Social services are divided into care services and other support services for the elderly, children and the disabled. These social services are the subject of great policy interest in that they can create two effects at the same time: increase in labor demand for service providers and increase the possibility of long-term accumulation of human capital for service recipients. Therefore, this study aims to confirm the hypothesis according to whether the use of social services affects family relationships and the effects of social service users' psychological adaptation on marital and parent-child relationships even when other related variables are controlled. The final result of this thesis is a regression analysis to find out the effect of psychological adaptation on the family relationship, spouse relationship, and relationship with children of subjects who have experience using social services. -.661, p=0.001), the higher the psychological adaptation, the higher the spouse satisfaction (β=.465, p=0.001) and relationship satisfaction with children (β=.360, p=0.001). In other words, it was found that the more depressed the psychologically, the more negative the relationship with spouse and children.

• BMB Reports
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• v.50 no.11
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• pp.535-536
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• 2017

A novel approach has been used to identify functional interactions relevant to human disease. Using high-throughput human-yeast genetic interaction screens, a first draft of disease interactome was obtained. This was achieved by first searching for candidate human disease genes that confer toxicity in yeast, and second, identifying modulators of toxicity. This study found potentially disease-relevant interactions by analyzing the network of functional interactions and focusing on genes implicated in amyotrophic lateral sclerosis (ALS), for example. In the subsequent proof-of-concept study focused on ALS, similar functional relationships between a specific kinase and ALS-associated genes were observed in mammalian cells and zebrafish, supporting findings in human-yeast genetic interaction screens. Results of combined analyses highlighted MAP2K5 kinase as a potential therapeutic target in ALS.

• Korean Journal of Human Ecology
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• v.13 no.3
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• pp.345-359
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• 2004

Self-efficacy is an important variable determining adolescents' behavior. This study was designed to develope a program for improving teens' self-efficacy. The goal of this program was as follows: (1) to improve self-efficacy by enlarge self-knowledge through in- depth search of one's own inner world, (2) to correct one's inferiority impeding one's inner growth, (3) to improve self-efficacy in family relationship, peer relationship, and academic achievement areas. This program consisted of total 6 sessions, supplemented with interpersonal relationships regarding positive family functioning and the impact of peer groups which were found out in recent researches. Specific strategies such as verbal persuasion, mastery experience, vicarious experience and affective arousal were used.

• Nuclear Engineering and Technology
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• v.36 no.1
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• pp.64-72
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• 2004

The purpose of this study is to develop a system dynamics model for the assessment of the organizational and human factors in a nuclear power plant which contribute to nuclear safety. Previous studies can be classified into two major approaches. One is the engineering approach using tools such as ergonomics and Probability Safety Assessment (PSA). The other is the socio-psychology approach. Both have contributed to find organizational and human factors and to present guidelines to lessen human error in plants. However, since these approaches assume that the relationship among factors is independent they do not explain the interactions among the factors or variables in Nuclear Power Plants. To overcome these restrictions, a system dynamics model, which can show cause and effect relationships among factors and quantify the organizational and human factors, has been developed. Handling variables such as the degree of leadership, the number of employees, and workload in each department, users can simulate various situations in nuclear power plant organization. Through simulation, users can get insights to improve safety in plants and to find managerial tools in both organizational and human factors.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.2143-2147
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• 2005

Human-Robot interaction (HRI) has recently become one of the most important issues in the field of robotics. Understanding and predicting the intentions of human users is a major difficulty for robotic programs. In this paper we suggest an interaction method allows the robot to execute the human user's desires in an intelligent room-based domain, even when the user does not give a specific command for the action. To achieve this, we constructed a full system architecture of an intelligent room so that the following were present and sequentially interconnected: decision-making based on the Bayesian belief network, responding to human commands, and generating queries to remove ambiguities. The robot obtained all the necessary information from analyzing the user's condition and the environmental state of the room. This information is then used to evaluate the probabilities of the results coming from the output nodes of the Bayesian belief network, which is composed of the nodes that includes several states, and the causal relationships between them. Our study shows that the suggested system and proposed method would improve a robot's ability to understand human commands, intuit human desires, and predict human intentions resulting in a comfortable intelligent room for the human user.

• Journal of the Korea Safety Management & Science
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• v.21 no.4
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• pp.67-74
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• 2019

Visual inspection is regarded as one of the critical activities for quality control in a manufacturing company. it is thus important to improve the performance of detecting a defective part or product. There are three probable working modes for visual inspection: fully automatic (by automatic machines), fully manual (by human operators), and semi-automatic (by collaboration between human operators and automatic machines). Most of the current studies on visual inspection have been focused on the improvement of automatic detection performance by developing a better automatic machine using computer vision technologies. However, there are still a range of situations where human operators should conduct visual inspection with/without automatic machines. In this situation, human operators'performance of visual inspection is significant to the successful quality control. However, visual inspection of components assembled into a mobile camera module belongs to those situations. This study aims to investigate human performance issues in visual inspection of the components, paying more attention to human errors. For this, Abstraction Hierarchy-based work domain modeling method was applied to examine a range of direct or indirect factors related to human errors and their relationships in the visual inspection of the components. Although this study was conducted in the context of manufacturing mobile camera modules, the proposed method would be easily generalized into other industries.

• Korean Journal of Human Ecology
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• v.8 no.1
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• pp.95-107
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• 1999

Difficulties in the measuring home food production activities obstructs development of home production activity related studies. For solving such problems, this study intended to develope a home food production frequency scale. The data were collected from 219 housewives in Taejon. Validity, reliability, correlation, and multiple regression analysis were used to test home food production frequency scale. The scale's validity and reliability were reveled considerable potential for its use to ascertain relationships between home food production activity and other family variables.

• Journal of the Ergonomics Society of Korea
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• v.5 no.2
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• pp.33-36
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• 1986

Compatiblity is a very generalized concept that has substantial applicablity to various aspects of human factors. It refers to the spatial movement, or conceptual relationships of stimuli and of responses, individually or in combination, which are consistent with human expectations. In this paper, first, several remarks which should be considered in designing the visual display and control of automobile are considered. Also, two advanced designs of visual display and control are suggested based on the compatibility principles.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1990.10a
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• pp.91-98
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• 1990

This paper reviews the previous researches related to the effects of whole-body vibration on human performance. The physiological effects of vibration were reviewed in the first part, and the effects of vibration on vision and manual control performance were discussed. the relationships between vibration and ride quality were also discussed. ISO-2631 was briefly reviewed, and cautions and limitations were discussed to avoid misinterpretations when we accomodate Korean population to this standard. Further researches were recommended to get better understanding of response characteristics of Korean to whole-body vibration.