• 재활복지
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• v.21 no.1
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• pp.121-140
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• 2017

The purpose of the this study was to investigate the association of the participation of leisure activities, leisure satisfaction and quality of life, and analyze the mediating effect of leisure satisfaction in the relationship between the participation of leisure activities and quality of life among people with disabilities. For the purpose, the data were collected by using non-random purposive and convenient sampling methods and 192 disabled people who reside in Daegu city and Kyungpook provinces filled out self-administered questionnaires for this study. Findings of the study indicated that there were statistically significant relationships among the participation of leisure activities, leisure satisfaction, and quality of life and active types of leisure activities such as physical activities, travel activities, and social participating activities were significantly related with leisure satisfaction and quality of life. In addition, the mediating effect of leisure satisfaction in the relationship between the participation of leisure activities and quality of life was statistically significant. Based on the findings of the study, possible practice implications for improving quality of life among disabled people and recommendation for further study were provided.

• Annual Conference of KIPS
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• 2003.11c
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• pp.1371-1374
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• 2003

관계형 DBMS 질의 최적화기는 기본적으로 통계정보(statistics), 선택도(selectivity), 카디널리티(cardinality), 비용(cost) 순으로 특정 실행 계획(Execution Plan)의 수행비용을 예측한다. 질의 최적화기가 최적의 실행 계획을 선택하는데 있어서 정확한 통계정보 유지와 올바른 선택도 그리고 카디널리티 예측이 무엇 보다 중요하다. 이 논문에서는 관계형 DBMS의 질의 최적화기가 비용을 계산하는 과정에서 발생할 수 있는 오류의 종류와 원인을 밝히고 각각의 오류에 대한 해결 방안을 진단 도구를 통하여 제시하도록 하겠다. 질의 최적화기의 오류로 인해 발생하는 잘못된 선택도와 카디널리티 예측을 인지하고 사용자에게 적절한 해결책을 제시한 후 실행 계획이 어떻게 바뀌었는지, 성능이 얼마나 향상되었는지를 확인하기 위해 진단 도구를 개발하고 그 결과를 분석하였다. 실험을 통해 본 논문에서 제시하는 질의 최적화기의 오류로 인한 문제를 가시적으로 확인할 수 있었으며, 부정확한 통계정보 유지와 잘못된 선택도 예측으로 인해 발생하는 문제가 어느 정도 해결된 것을 확인할 수 있었다.

• The Journal of the Korea Contents Association
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• v.4 no.2
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• pp.36-42
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• 2004

This paper describes the Korean Question answering system using the syntactic-relation information d verbs to overcome lack of reliable knowledge and linguistic resources. The syntactic-relation information consists d the original form d a verb, usual usage pattern, semantic category of each dependent noun, synonym verbs and passive verbs. We use the syntactic-relation information to parse sentences or phrases with usual usage pattern of the verb and semantic conditions of dependent components on the verb. We also use that information to parse answer candidate sentences, and find an answer from questioned case slot. Our experiments that usage of the syntactic-relation information of verbs to mm lack of reliable knowledge and linguistic resources can be utilized efficiently for the Korean question answering system.

• 한국노년학
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• v.29 no.2
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• pp.611-627
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• 2009

The purpose of this study is to compare in the U.S. and Korea regarding adult children's quality of relationship and care provision for their elderly parents. The study sample consist of 320 adult children in the U.S. and 554 adult children in Korea with at least one parent living. The U.S. study sample is drawn from the State of California, and the Korean sample is drawn from Gyeongsangnamdo Province. The study result shows that the U.S adult children score higher than the Korean adult children in the quality of relationship measure for their elderly parents. And Korean adult children score higher than the U.S. adult children in the care provision measure for their elderly parents. It is found that the most significant factor influencing American adult children's care provision is caregiving attitude for elderly parents, while for Korean adult children, it is the quality of the relationship between adult children and elderly parents. This study results can serve as a foundation for understanding the U.S. and Korean differences regarding adult children's support for their elderly parents and for providing a solution to caregiving issues for elderly parents.

• The Journal of the Korea Contents Association
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• v.14 no.11
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• pp.810-819
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• 2014

Objectives: The aim of this study was to investigate the sleep quality and depression, and relationship between sleep quality and depression of nursing students. Methods: A cross-sectional, descriptive study was conducted. The subjects were 268 nursing students from a University. Data were collected on September, 2012 by using a structured questionnaire. The data were analyzed using SPSS/WIN 19.0 program. Results: The mean score of sleep quality was 6.65, among the students, 86.6% had sleep problem. The mean score of depression was 16.89, 25.4% of the students had mild depression, and 20.5% had severe depression. Sleep quality showed no significant differences, meanwhile depression showed significant differences according to the school year, satisfaction level with nursing major and university. There was a significant relationship between sleep quality and depression. Conclusions: These results suggest that some of the nursing students have sleep problem and depression. Therefore, it is needed to develop various nursing intervention strategies to improve physical, psychological health of the nursing students.

• The Journal of Society for e-Business Studies
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• v.16 no.4
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• pp.257-281
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• 2011

The purpose of this study is to examine the effect of social anonymity on community quality and find out mediating factors that affect the relationship between social anonymity and community quality in online community sites. This study focuses on the factors such as self expression, self control, and community ties to investigate their mediating roles on the relationship between social anonymity and community quality. Also, discussion quality and information quality are used to measure online community quality. The results of this study show that social anonymity is directly related to discussion quality but not related to information quality. As for the mediating effects, self expression, self control and community ties are all shown to have strong mediating effects on the social anonymity and community quality relationship.

• 한국노년학
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• v.30 no.4
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• pp.1117-1127
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• 2010

The aims of the study is to identify levels of burden, coping ability and health related quality of life and relationships among family caregivers who care dementia elderly using daycare center. Subjects were all major caregivers from conveniently selected 8 daycare center for dementia in a middle size city in Korea and final analyzed sample was 93. Data were collected through self-reported questionnaire from April to June, 2010. This study's results include the followings. First, the result indicated that mean score of health related quality of life among respondents was 69.34(SD 12.04). Secondly, there were significant differences in caregiver burden by age, education level, occupation and coping ability by education level and monthly income, health related quality of life by age, type of marriage, relation with dementia elderly. Finally, we can found significant negative relationships health related quality of life with caregiver burden and coping ability. Therefore, the findings of this study suggest that the program about development of intervention to reduce caregiver burden and to improve coping ability should consider for advanced health related quality of life of dementia elderly's caregiver.

• Journal of Digital Convergence
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• v.12 no.12
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• pp.49-59
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• 2014

This study is aimed to know whether there are any quality differences among wisdom, life satisfaction, self-esteem, psychological well-being, and child relationship in accordance with the individual characteristics of the elderly. The subjects in this study were 227 old people who were over 65 years old among people using the hall for the elderly or elderly welfare center, worship facilities in Cheonan City or Kyeonggi Province. In addition, the effect that wisdom influences each valuable showed that there were statistically significant in all of the satisfaction of living, self-esteem, psychological wellbeing, the quality of child relationship. The result of research in the interaction effects between sex and age showed the interaction effect.

• Journal of the Korea Convergence Society
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• v.10 no.12
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• pp.525-534
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• 2019

The purpose of this convergence study was to evaluate the influence of interpersonal problems on sleep quality in college students and to analyze the mediating role of mental health and the moderated mediating role of emotional regulation. This was a cross-sectional study of 307 students at a college in Seoul. The results of hierarchical linear regression showed that interpersonal problems and mental health were statistically significant predictors of sleep quality in college students. A mediation analysis further revealed that students' mental health mediates the relationship between interpersonal problems and sleep quality. Additionally, there was a moderated mediating role of dysfunctional emotional regulation in this process. Our findings suggest that supportive and adaptive cognitive emotional regulation educational programs should be designed based on college students' maladaptive emotional regulation experiences and individual characteristics.

• The KIPS Transactions:PartD
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• v.16D no.6
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• pp.859-870
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• 2009

Despite the surge in the research for keyword search method over relational database, only little attention has been devoted to studying on relational data stream.The research for keyword search over relational data stream is intense interest because streaming data is recently a major research topic of growing interest in the data management. In this regard we first analyze the researches related to keyword search methodover relational data stream, and then this paper focuses on the method of minimizing the join cost occurred while processing keyword search queries. As a result, we propose an advanced keyword search method that can yield more meaningful results for users on relational data streams. We also propose a query optimization method using layered-clustering for efficient query processing.