• Journal of the Chungcheong Mathematical Society
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• v.28 no.2
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• pp.187-194
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• 2015

The concept of sub-independence is based on the convolution of the distributions of the random variables. It is much weaker than that of independence, but is shown to be sufficient to yield the conclusions of important theorems and results in probability and statistics. It also provides a measure of dissociation between two random variables which is much stronger than uncorrelatedness. Inspired by the excellent work of Jin and Lee (2014), we present certain characterizations of gamma distribution based on the concept of sub-independence.

• Communications for Statistical Applications and Methods
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• v.13 no.2
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• pp.219-231
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• 2006

When the correlation of two random variables is weak, the value of one variable can not be used effectively to predict the other. Even when most of the values are overlapped, it is difficult to find a linear relationship. In this paper, we propose two graphical methods of representing the measures of correlation and independence between two random variables. The first method is used to represent their degree of correlation, and the other is used to represent their independence. Both of these methods are based on the cumulative distribution functions defined in this work.

• Journal of the Ergonomics Society of Korea
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• v.19 no.1
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• pp.1-9
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• 2000

This study was performed to investigate some characteristics on human error proneness in the computerized work environment. Our concerning theme was on human error likelihood according to personal temperament. Two experiments were performed. The first experiment was to study the effect of field- independence/dependence on error likelihood. The second experiment was on error proneness. These experiments were performed in information search task. which was most frequent task in computerized work environment such as the control room of nuclear power plant. Ten subjects were participated in this study. Analyzed results are as follows. Field-independence/dependence had a significant effect in both information search time and error frequency. Error proneness had a significant effect in both factors, too. And, a positive correlation was found between error frequency and information search time. These results will be utilized as a basis to study operator's error proneness in the computerized control room of nuclear power plant. later on.

• Journal of Distribution Science
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• v.17 no.3
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• pp.57-67
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• 2019

Purpose - This study aims to examine the impact of work values on entrepreneurial attitudes, and test the moderating effect of entrepreneurial opportunity identification on the above mentioned relationship as well. Research design, data, and methodology - A questionnaire survey was conducted to 258 employees who comes from 8 different types of the enterprises in northwestern of China, and the corresponding research model was verified. Results - The results show that "comfort and security" (one dimension of work values) has a significant negative impact on entrepreneurial attitudes. Another two dimensions of work values, such as "competence and growth" and "status and independence" have a significant positive impact on entrepreneurial attitudes. In addition, entrepreneurial opportunity identification has a significant moderating effect on the relations between work values and entrepreneurial attitudes. Specifically, only the entrepreneurship opportunity identification positively moderates the relationship between status & independence and entrepreneurial attitudes. Conclusions - This research further enriches the relevant theories of organizational behavior and entrepreneurships. This study also has guiding significance and value for management practice, especially for this research results implies, that is, individual's ability to entrepreneurial opportunity identification (e.g., identify feasible distribution channel for potential new venture) is important in entrepreneurship.

• Journal of Technologic Dentistry
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• v.37 no.2
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• pp.79-94
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• 2015

Purpose: The main purposes of this study are to describe the organization effectiveness and to investigate the effects of dental technicians' work ethic on job satisfaction, organization citizen's action, and organizational commitment. Methods: A total of 300 dental technicians working at dental laboratories in the Daegu area were randomly selected and surveyed, 298 of them were used for the statistical analysis. Results: The work ethic sub-items, such as industry, work centrality, morality, time save, independence, and relation with co-worker are independent variables. The organization effectiveness subi-items, such as job satisfaction, organization citizen's action, and organizational commitment are dependent variables. Sociodemographic variables are used for control variables. Findings are as follows: First, in terms of dental technicians' work ethic, the level of relation with coworker was the highest, and work centrality was the lowest. Second, in terms of dental technicians' organization effectiveness, the level of citizen's organizational action was the highest followed by organizational commitment and job satisfaction in order. Third, the effects of industry, work centrality, time save, relation with coworker, and morality showed statistically significant relationships with organizational effectiveness. Fourth, the effects of industry, work centrality, time save, relation with co-worker, and morality statistically significant relationships with job satisfaction. Fifth, in terms of organization citizen's action, the effects of industry, work centrality, and time save were statistically significant. Sixth, work centrality, time save, relation with coworker, and independence were statistically significant with organizational commitment. Conclusion: Some policy implications for the improvement of organizational effectiveness are introduced and discussed. Dental technicians are required to have vocation and work ethic for themselves and the organization, and by doing so, they may contribute to the improvement of national oral health. Policies and educational programs, which can support them may be necessary.

• Journal of Korean Physical Therapy Science
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• v.14 no.1_4
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• pp.25-36
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• 2007

The results of researching on duties of physical therapist, understanding of elderly diseases and policies related with elderly welfare came out from the survey before beginning of education to physical therapists who attended National Elderly Welfare Physical Therapist Workshop during Sep. 11th to 14th, 2007. They have already understood about long-term elderly care insurance from the policy, and responded that those policies will bring more advantage to elders. On contrary, negative response had reason of low service quality. About elderly care system, there were positive answer of appropriate alternatives to support them, but also other critics had opinion of inevitable choice for living conservation. About understanding of elderly diseases, there were more comprehension of diseases as age gets higher, but most did not understand dementia and paralysis. Past experience and process of medical treatment for their disease were such arthritis, paralysis, broken bone, and dislocation of joint. Prognosis of technical training was mostly answered positively, but linking with other related disease programs were not welcomed. Most respondents thought that professional training were needed. The results of understanding diseases during senescent had high percentage of understanding as age and education was high, and it had eye upon statistics of the survey (p < 0.05) Most of those questioned responded that it is appropriate to have six working days per week and eight hours of daily work, however, present wage is not reasonable. Most of those questioned had negative response of work independence, and had an-swered that there should be certificates needed in related fields. For difficulties during work period, they had hardship instituting direction of treatment by lack of program, level of wage, and physical difficulties. Physical therapists averagely wished to have fewer than thirty patients per therapist. After the research, physical therapists who work in those facilities of elderly care systems agreed on policies, though it should not lower service quality. In addition, they were pros to have elderly care system, yet they are still inevitable option to maintain living. For work environment, the period of work was appropriate, but had different opinions for work independence and regular number of patients. Therefore, there should be more organized treatment program that also should be linked to other practical programs at this beginning point of the policy enforcement and the time that many therapists hope to work in elderly care system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.6
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• pp.165-170
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• 2017

This study aims to provide important data for community-centered rehabilitation by examining factors influencing community participation after the onset of stroke. The study subjects were 100 patients with a stroke for more than six months. Korean Craig Handicap Assessment and Reporting Technique (K-CHART) was conducted to determine the level of participation of subjects, and Korean-Modified Barthel Index (K-MBI) was conducted to examine the factors influencing the community participation of the subjects to determine the level of independence of activities of daily living. As a result, the relevant factors of community participation in stroke patients were as follows. Physical independence, cognitive independence, mobility, work, and social integration of stroke patients showed higher explanatory power than engagement in activities of daily living, age, and employment. Also, physical independence, cognitive independence, mobility, work, and social integration were factors that affected participation. All items were statistically significant (p <.01). It is considered that this study will contribute to providing information for focusing on occupational therapy for increasing the social participation of stroke patients, and proper evaluation and intervention will work as essential rehabilitation factors for improving participation with respect to the influential factors of participation.

• Physical Therapy Rehabilitation Science
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• v.7 no.2
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• pp.67-71
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• 2018

Objective: Participation restrictions are serious problems that stroke survivors experience while reintegrating into family, work, community, and social situations after participating in rehabilitation programs. The purpose of this study was to explore the factors affecting participation in activities of daily living (ADL), as well as social and leisure activities of individuals with hemiparetic stroke. Design: Cross-sectional study. Methods: The study involved 96 participants who were diagnosed with a first stroke 6 months before the study (58 men, 38 women; $60.3{\pm}14.3years$). The Berg Balance Scale, Modified Barthel Index, Manual Function test, and Activity Card Sort were used to assess static and dynamic balance function, upper limb function, level of independence, and their level of participation within the community. A regression analysis was used to identify the influence of factors affecting participation in ADL, social and recreational activities. Results: The Activity Card Sort scores were significantly affected by the Manual Function test and Modified Barthel Index scores (p<0.05). Participation in leisure activities was affected by the level of independence. Participation in social activities was affected by the balance function and level of independence of the participants. Conclusions: The results of this study have shown that participation restrictions are affected by upper limb function, balance function, and the level of independence in individuals with hemiparetic stroke.

• Korean Association of Arts Management
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• no.55
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• pp.155-184
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• 2020

This paper aims to reveal the merits and demerits of the exhibition by examining whether the subject intended at the exhibition planning stage was finally persuasively implemented throughout the work and exhibition, along with the theoretical verification of the way the exhibition dealing with the history of the women's independence movement from the psychoanalytic feminist point of view. To this end, a more fundamental approach to the theme of the Women's Independence Movement calls for the search for a feminine language that can capture women's unique identity rather than a masculine language such as the existing independence movement exhibition method, and for finding such feminine language, a feminine speech, art and poetic language, maternal genealogy, and women's solidarity are presented, along with theories. This paper, which expounds the role of art works in exhibitions dealing with history through theoretical verification of actual exhibition cases, has significance as communication between theory and field.

• Journal of Families and Better Life
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• v.31 no.2
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• pp.59-75
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• 2013

The purpose of this qualitative study was to explore how divorced mothers had decided to take custody of their children and became single mothers. The experiences of their lives after divorce were also explored. Data were collected from 17 Korean divorced mothers who were divorced between 2004 and 2009, and were raising at least one minor child. The data were analyzed based on the phenomenological data analysis method. Three main themes were identified: (a) reasons for deciding to have physical custody of the children, (b) mothers' experiences of adjustment after divorce, and (c) mothers' need for a policy concerning the well-being of their families. According to the divorced mothers, they decided to have physical custody of the children since they believed raising children was their natural duty of mothers or they were the most appropriate ones to raise the children rather than the fathers. While the mothers were satisfied with their lives after divorce in general, they also experienced difficulties including child care and financial strain. In particular, most mothers experienced work-family conflict related to the lack of reliable child care. When their family lives and work lives collided, the mothers put their children first and chose jobs that helped them take care of their children at the same time. The divorced single mothers hoped that the social safety net for single parents would expand to support their independence. Implications for single-parent policy are discussed.