• Journal of the Korean Data and Information Science Society
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• v.17 no.1
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• pp.195-204
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• 2006

In this paper, we consider a renewal process in which both the inter-arrival times and rewards are fuzzy random variables. We prove the uniform levelwise convergence of fuzzy renewal and fuzzy renewal rewards. These results improve the result of Popova and Wu[European J. Oper. Research 117(1999), 606-617] and the main result of Hwang [Fuzzy Sets and Systems 116 (2000), 237-244].

• Journal of Families and Better Life
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• v.16 no.2
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• pp.179-193
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• 1998

the purpose of this research was to investigate rewards costs and adjustment perceived by adult children in three generation family. Data were collected from 132 marital couples in three generation family in Seoul area. The results of this study showed that there were significant differences in the levels of rewards costs and adjustment variables (self-esteem depression family life satisfaction and marital satisfaction)between husbands are wives. It was also found that wives's costs and husbands' rewards were significantly different across three different types of three generation family. It addition the results of multiple regression analyses indicated that reward was the most powerful variable affecting wives' depression and family life satisfaction and that cost influenced husbands' family life satisfaction and marital satisfaction.

• Clinical Psychopharmacology and Neuroscience
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• v.16 no.4
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• pp.449-460
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• 2018

Objective: Prior functional magnetic resonance imaging (fMRI) work has revealed that children/adolescents with disruptive behavior disorders (DBDs) show dysfunctional reward/non-reward processing of non-social reinforcements in the context of instrumental learning tasks. Neural responsiveness to social reinforcements during instrumental learning, despite the importance of this for socialization, has not yet been previously investigated. Methods: Twenty-nine healthy children/adolescents and 19 children/adolescents with DBDs performed the fMRI social/non-social reinforcement learning task. Participants responded to random fractal image stimuli and received social and non-social rewards/non-rewards according to their accuracy. Results: Children/adolescents with DBDs showed significantly reduced responses within the caudate and posterior cingulate cortex (PCC) to non-social (financial) rewards and social non-rewards (the distress of others). Connectivity analyses revealed that children/adolescents with DBDs have decreased positive functional connectivity between the ventral striatum (VST) and the ventromedial prefrontal cortex (vmPFC) seeds and the lateral frontal cortex in response to reward relative to non-reward, irrespective of its sociality. In addition, they showed decreased positive connectivity between the vmPFC seed and the amygdala in response to non-reward relative to reward. Conclusion: These data indicate compromised reinforcement processing of both non-social rewards and social non-rewards in children/adolescents with DBDs within core regions for instrumental learning and reinforcement-based decision-making (caudate and PCC). In addition, children/adolescents with DBDs show dysfunctional interactions between the VST, vmPFC, and lateral frontal cortex in response to rewarded instrumental actions potentially reflecting disruptions in attention to rewarded stimuli.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.6 no.12
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• pp.605-619
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• 2016

This study aims to figure out effects of the rewards applications receiving a lot of attention recently as mobile advertising using the smartphones. Therefore, this study examines differences of user satisfaction and continued use intention according to a user characteristic, demographic characteristic and rewards application characteristic. The research results are as follow. First, in terms of user satisfaction of the rewards applications, there is a significant difference according to the user gender and existence of the reserved value experience. Second, there is a significant difference in the continued use intention of the applications according to the user type and gender. Third, it is also found that there is an interaction effect between the user gender and existence of the reserved value use experience on the continued use intention. This study is significant in that the results may provide future researchers with practical foundations for marketing strategies to activate the rewards applications.

• 한국노년학
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• v.28 no.4
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• pp.1147-1164
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• 2008

There has been a sharp increase in the number of grandmothers raising grandchildren in contemporary Korean society. However, little is known about the complexity of the experiences of the custodial grandparenting. Most of the studies mainly examined burden/cost and have paid little attention to the positive aspects of custodial grandparenting. In order to overcome this limitation of previous research, this study aims 1) to examine not only the costs but also the rewards of custodial grandparenting and to explore related factors, 2) to develop the typology based on relative rewards-burden perception of grandmothers about custodial grandparenting and explore the group differences. The data were gathered from 449 grandmothers raising their grandchildren as a primary caregiver, using a structured questionnaire. The data were analyzed using descriptive statistics, correlation, hierarchical multiple regression and ANOVA, with SPSS WIN 12.0 program. Main findings are as follows: First, custodial grandmothers report not only care-giving burden such as physical burnout and economic burden but also various rewards such as joy of watching their grandchildren grow and feeling good about themselves to be a help with their adult children, i.e. grandchildren's father or mother. Second, factors related to the level of perceived cost of grandparenting are different from the factors affecting the positive aspects of grandparenting. Third, results of the two by two cross-tab analysis based on the level of rewards and burden show that about 32 percent of the grandparents belong to Type II group(high rewards-low cost). This result is quite contrary to the assumption of previous research focusing mostly on cost and burden of custodial grandparenting. Fourth, four groups were different in terms of grandmother & grandchildren's characteristics. Implications of these results are discussed.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.39 no.3
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• pp.409-418
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• 2019

For the success of construction projects, construction companies have begun to recognize the innovation ability of members who participate in projects that can adapt and cope with environmental changes caused by knowledge-based informatization and globalization. The questionnaire of the research selected 254 final valid samples of the members participating in the construction project using online. An empirical analysis of the research model used the structural equation model (Smart-PLS 2.0). The purpose of this study is to investigate the effect of psychological ownership on person-job fit and rewards system in the construction project. First, person-job fit has a positive effect on psychological ownership. Second, intrinsic rewards and extrinsic rewards in the rewards system have a positive effect on the psychological ownership. Third, psychological ownership has a positive effect on innovative behavior. Finally, the mediating effects of psychological ownership were found to have no mediating effect on person-job fit and rewards system. In order to induce innovation behavior, the managers of construction companies need to recognize the importance of psychological ownership and build a model of construction project organization activation through development of person-job fit and rewards program.

• Journal of Families and Better Life
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• v.21 no.2
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• pp.187-199
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• 2003

The purpose of this study was to understand the weekend couples' type of residence, and to identify the factors to determine their major living place. Specifically, this study dealt with the weekend couples' psychological costs and rewards when they live apart in weekdays. The data were collected from 33 married couples from 2002 June to July about their family life history. The major findings of this study were summarized as follows: 1) the type of living together ; husband living apart on weekdays, wife living apart on weekdays, wife and child living apart on weekdays, living multi-residence. The majority of them were the type of husband living apart on weekdays. 2) children's care and education were an important factor in a couple's decision 3) weekend couples' psychological costs were such as difficulties of children's care, very fatiguing, shortage of time, and emotional isolation. In spite of all these costs, weekend couples still maintain their separate living arrangements during the week. They felt different kind of psychological costs by the type of living together. 4) psychological rewards were professional success, self-fulfillment, plenty of time to use purposely, and weekenders' relationships to their spouses might seem better than before. Socialization of child-care and household-labor are important factors to reduce psychological costs for the all weekend couples.

• Journal of the Korean Applied Science and Technology
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• v.38 no.6
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• pp.1423-1432
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• 2021

This study aimed to understand the relationship between nurses' rewards and job enthusiasm, using the data from the 5th Korean Working Conditions Survey(2017). The subjects of this study consist of 359 nurses randomly sampled nationwide(218 from youth group, 141 from midddle age group). The effects of intrinsic and extrinsic rewards on job enthusiasm was indentified through GLM analysis. The results reveal that, for the entire group, participation in decision making, sense of achievement, self esteem, career prospects, recognition at work, work-life balance influence job enthusiasm. For the youth group, participation in decision making, sense of achievement, self esteem, career prospects, and work-life balance are the influencing factors; while for the middle age group, sense of achievement, self-esteem, and recognition at work are the influencing factors. In conclusion, we suggest establishing a reward system that incorporates participation in decision making, sense of achievement, self esteem, career prospects, recognition at work, and work-life balance, in order to boost nurses' job enthusiasm. Also, taking age groups into account when establishing such system may improve efficiency.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.253-260
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• 2022

Creativity, one of the core competencies of the 21st century, is required as an essential item for members of society. Emphasizes its ability in terms of personality that allows it to be used in the desired direction. However, creativity is considered to contribute to positive change in the organization, not only in creating new ideas or products, but also in adapting to a changing environment and solving problems. Accordingly, by reviewing previous studies, it was concluded that rewards can promote or hinder creativity, which may vary depending on the nature of rewards, the concept of creativity possessed by the researcher, individual differences, and external environment. We also proposed that rewards may influence creativity through motivational, cognitive, and synthetic functions. Based on the analysis, a specific model was proposed for the effect of reward on creativity. This study is based on existing research and analyzed various factors and mechanisms acting in the process of influencing creativity based on comparison of which extrinsic and intrinsic motivations have what kind of relationship. Next, it appears that rewards differ from person to person according to the way they are given in environmental circumstances. Finally, by rewarding various types of creative tasks, an active reward role can be secured.

• Child Studies in Asia-Pacific Contexts
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• v.2 no.2
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• pp.123-132
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• 2012

The current study examined 3- and 4-year-olds' affective decision-making in a variety of cultural contexts by comparing European Canadian children to Chinese Canadian, Hong Kong Chinese, and mainland Chinese children (N = 245). All children were tested with a delay of gratification task in which children chose between an immediate reward of lower value and a delayed reward of higher value. Results showed that Chinese Canadian and Hong Kong Chinese children chose more delayed rewards than European Canadian children, with mainland Chinese children showing a trend toward more delayed rewards. Across cultures, 4-year-olds chose more delayed rewards than 3-year-olds; and among 4-year-olds, girls made more such choices than boys. The findings are consistent with previous findings that exposure to Chinese culture is associated with better cool executive function, but they also highlight the importance of examining development across diverse cultural contexts.