• Korean Journal of Cognitive Science
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• v.14 no.1
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• pp.17-28
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• 2003

In order to provide natural images with a specified depth through three-dimensional display system, the stereo images should be similar to those projected from real environment as much as possible. Even when two persons see an identical scene, the binocular Parallax between two images of an object varies as a function of one's inter-pupilary distance (IPD). In this study, we investigated whether individual differences, such as IPD and accommodative vergence, would affect the perception of three dimensional scene provided by stereo-images. Results showed that a person's IPD is correlated with the limit of screen and binocular parallax for single vision, and affects the perceived depth of an object on fixation. More specifically, with longer IPD the limit of screen and binocular parallax for single vision is decreased, and the perceived depth is reduced. These results suggest that the screen and binocular parallax of an object should be calibrated with regard to users IPD to provide natural stereo-images with a specified depth and to Prevent double vision.

• Journal of Family Resource Management and Policy Review
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• v.26 no.2
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• pp.85-94
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• 2022

This study aims to investigate predictors of the subjective well-being of middle-aged single mothers who experienced divorce or bereavement. The study involved 244 divorced or widowed women from the 7th Korean Longitudinal Survey of Women and Families aged 40-60 who had children and were employed. Descriptive statistics and multiple regression analyses were conducted. The research results showed that the socio-demographic characteristic (marital status and health), person-related variables (satisfaction with leisure activity and stress), and work-related variables (job satisfaction and work-family enrichment) were significantly related to happiness of middle-aged single mothers. Current economic status and stress were associated with depression in middle-aged single mothers. Increasing middle-aged single mothers' participation in healthy leisure activities, reducing their stress, and improving their satisfaction with work were found to be important to enhancing their subjective well-being. Regarding the foregoing, policy directions were discussed for middle-aged single mothers' leisure activities, stress management, and improved satisfaction with work.

• Korean Journal of Culture and Social Issue
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• v.27 no.4
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• pp.629-659
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• 2021

This study compared the influences of Korean psycho-social experiences on emotional-distress(stress, depression, anxiety, anger) of Koreans between two-periods during COVID-19. First, an online survey was conducted among 600 participants between April 13, 2020 and 21, while WHO had declared the pandemic, and Daegu-Gyungbuk were declared as a special-disaster area. Second, an online survey was conducted among 482 participants out of 600 study participants from the first study during August 21 to September 2, while COVID-19 re-spreaded around the world, and total confirmed cases were over 1,000 for a week in Seoul-Gyeonggi province. Hierarchical-regression analysis was used to determine the influence of personal characteristics, fear and social constraints, relationship conflict and income-decreasing factors on stress, depression, anxiety, anger in the two-time points. Results suggest that gender, quality-of-life, 'frequent information-checking about COVID-19', 'fear of unpredictability' and 'difficulties on hospital treatment access' predicted distress(stress, depression, anxiety, anger) at both Time1 and 2. 'Difficulties with official schedule' predicted distress at Time 1, and age, vulnerability to infection and difficulties with personal schedules predicted distress(stress, depression, anxiety, anger) at Time 2. Based on the reseults, implications and recommendations were presented.

• The Journal of the Korea Contents Association
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• v.17 no.3
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• pp.359-369
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• 2017

The purpose of this study was to examine whether the effect of feedback would mask the performance differences that would result from different incentive pay distribution. Five critical service behaviors were identified and measured daily at a gas station located in Seoul. Participants were 5 employees working at the gas station. Independent variables were the types of incentive distribution and feedback. After baseline (A), equally-distributed group incentive condition (B) was introduced, and individual incentive condition (C) was introduced in the next phase. Then, after the withdrawal condition (A'), equally-distributed group incentive with feedback condition (B') was introduced and finally, the individual incentive with feedback condition (C') was introduced. The results suggested that all employees showed higher work performance under individual incentive than equally-distributed group incentive system when feedback were not delivered. However, there was no difference in work performance between two incentive conditions in the phases in which feedback were delivered. These findings suggest that feedback can reduce performance differences between equally-distributed group incentives and individual incentives.

• Journal of Satellite, Information and Communications
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• v.11 no.3
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• pp.18-23
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• 2016

Internet of things (IoT) is revolutionizing in the patient-Centered medical monitoring and management by authorizing the Smartphone application and data analysis with medical centers. The network connectivity is basic requirement to collect the observed human beings' health information from Smartphone to monitor the health from IoT medical devices in personal healthcare. The IoT environment built in Smartphone is very effective and does not demand infrastructure. This paper presents the smart phone deployed personal IoT architecture for Non-Invasive ECG Capturing. The adaptable IoT medical device cum Gateway is used for personal healthcare with big data storage on cloud configuration. In this approach, the Smartphone camera based imaging technique used to extract the personal ECG waveform and forward it to the cloud based big data storage connectivity using IoT architecture. Elaborated algorithm allows for efficient ECG registration directly from face image captured from Smartphone or Tablet camera. The profound technique may have an exceptional value in monitoring personal healthcare after adequate enhancements are introduced.

• Education of Primary School Mathematics
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• v.25 no.4
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• pp.279-295
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• 2022

This study was conducted to present implications for mathematics education by identifying the structural relationship among personality, negative emotion, motivation, and career maturity that affects elementary school student's mathematical academic achievement. The participants conveniently sampled 179 students, from 4th to 6th graders enrolled in the same elementary school, and data on their psychological variables were collected in the form of secondary data. The hypothetical structural equation model established based on prior studies was verified with a two-stage approach based on the collected data. It was confirmed that construct validity and construct reliability were secured through assessing the measurement model. In addition, as a result of analyzing the path coefficient of the final structural equation model, five paths were found to be significant: 'personality→motivation', 'personality→career maturity', 'negative emotion→motivation', and 'negative motivation→mathematical academic achievement'. In particular, the path of 'negative emotion→negative motivation→mathematics academic achievement' that can be confirmed through the results needs to moderate negative emotions to improve mathematical academic achievement, and at this time, negative motivation should be considered together.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.46-54
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• 2018

The purpose of this study is to compare and analyze differences of perceived career barriers based on demographic characteristics of cyber university students. The results of this study will provide a valuable basis for guiding adult learners in their career development. Subjects included 937 adult learners at cyber universities in Seoul, Korea, aged 20 and above. Results were as follows: The level of career barriers perceived by females aged 20-29 who were unemployed and single were higher than that of males aged 30 to 59 who were employed and married. Female students were higher in 'anxiety of future', 'lack of interest', 'lack of job information', 'interpersonal difficulty'. The only component in which subjects aged 50-59 perceived higher than other age groups was 'conflict with important people'. There was no significant differences by grade. These results imply that the perception of the career barriers of adult learners should be considered in customizing career development programs and career counselling.

• Journal of the Korea Convergence Society
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• v.10 no.9
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• pp.119-126
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• 2019

In this study, we examined whether the intention to choose varies according to the experience of the regret of consumers when experiencing a failure in the status quo or non-status quo, and how self-compassion plays a moderating role in this relationship. A experiment was conducted to achieve the purpose of the study. First, this study also confirmed that regret was a mediator between dissatisfaction with choice outcomes and behavioral intentions. Second, like previous studies, this study confirmed the effect of status quo in general. However, it can be seen that the effect depend on self-compassion. Or, the regrets of those with high self-compassion and their future behavioral intentions did not change significantly whether it was wrong due to maintaining on or changing of the status quo. On the other hand, those with low self-compassion showed the bigger differences, so they were typically showing the status quo effect.

• 대한공업교육학회지
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• v.36 no.2
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• pp.181-199
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• 2011

The purpose of this study is to determine the level of key competencies and teacher efficacy of pre-service industrial teachers as related to their personal backgrounds, and to analyze the correlation between personal variables, key competencies and teaching efficacy. This will be provided as basic resources for pre-service teacher training program to improve the understanding of key competencies and teaching efficacy of pre-service industrial teachers. The results of this study are as follows. First, the teacher efficacy of pre-service industrial teachers was found to be above average (M=3.0), and teaching efficacy (M=3.41) was found to be a bit higher than personal teacher efficacy (M=3.28). Upon analyzing the significant differences of teacher efficacy resulting from background variables, it was found that gender and major had no difference while the effect of school year on teaching efficacy of teacher efficacy showed statistically significant differences. Second, the lower regions of key competencies of pre-service industrial teachers all were above the average 3.0. Gender and school year were exhibited no significant difference, and only the global competence of key competencies showed significant difference. Third, it was found that the gender and major of pre-service industrial teachers had no correlation with teacher efficacy and key competencies. On the other hand, school year variable showed significant positive correlation with teacher efficacy (r=.274) and key competencies (r=.168). Lastly, it was found that key competencies and teacher efficacy had positive correlation of r=.475.

• Science of Emotion and Sensibility
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• v.16 no.1
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• pp.43-52
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• 2013

"Time versus money effect" refers to a favorable shift in consumers' responses activated by time(vs. money). In general, how people spend their time or money could reflect one's personal identity. Previous research indicates that drawing individuals' attention to time makes more effective in product satisfaction rather than money. Also, whereas because time is experienced as an experience, time activates more positive product satisfaction for experiential product rather than materialistic product, money has the reverse effect because money relates with possessions. Present study examined the effect of time and money on consumers' attitudes and decisions and the role of product type including smartphone. In experiment 1, participants evaluated their experiences or their own products(family restaurant, smartphone, premium jean). They satisfied more with their smartphones when activated by time than by money. In experiment 2, 3 image ads, a promotion image ad for each product(family restaurant, smartphone, premium jean), were offered to find the effect of time and money in promotion ads. The interaction effects between activating condition and product type were revealed on the product attitudes, product satisfaction, purchase intent, and personal connection reflecting the consistent time effect on smartphone. In addition, the main effect of the activating condition was significant which meant time activating ads were more effective than money activating ads.