• Journal of Family Resource Management and Policy Review
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• v.28 no.1
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• pp.1-11
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• 2024

The purpose of this study was to provide basic data to help individuals with disabilities in single-person households maintain a happy life by analyzing how interpersonal skills necessary for community adaptation and self-esteem, which are personal factors, affect life satisfaction. The self-esteem mediation effect was verified with SPSS Process Macro 4.3 using data on 828 single-person households sourced from the seventh wave of the Disability Employment Panel Survey(2022) conducted by the Employment Development Institute of the Korea Disability Employment Service. To examine the effects of interpersonal skills and self-esteem on life satisfaction, a multiple regression analysis was conducted. While it was found that higher self-esteem was associated with higher life satisfaction, interpersonal skills did not have a significant effect on this association. The path from interpersonal skills to life satisfaction via self-esteem was deemed statistically significant, suggesting that self-esteem mediates the relationship between interpersonal skills and life satisfaction. This study emphasizes the importance of interpersonal relationships for the life satisfaction of individuals with disabilities in single-person households in a modern society in which the problem of social isolation experienced by individuals in single-person households is emerging. Furthermore, it provides a direction for these individuals to become the main actors of their own lives.

• Journal of Korean Society for Quality Management
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• v.35 no.2
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• pp.45-52
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• 2007

The danger of self-ignition of single base propellants will increase with time. Therefore, a good prediction of the safe storage time is very important. In order to determine the remaining shelf-life of the propellants, the content of stabilizer is determined. The propellants stored under normal storage conditions about 10 to 18 years were investigated and accelerated aging test was carried out by storing propellant sample at higher temperature. Finally, we analyzed the results by various methods in order to show the best way to predict the realistic shelf-life. The safe storage life of the propellants will be 24 years, at least 15 years. In case of applying Arrhenius's law, using the reaction rate constant at 28$^{\circ}C$ to 30$^{\circ}C$ to predict the shelf-life by accelerated aging test is reasonable for a good prediction.

• Journal of the Korean Home Economics Association
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• v.40 no.3
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• pp.99-113
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• 2002

The purpose of this study is to explore family life issues of institutionalized single-mother families in Seoul. Using in-depth interviews and self-administered questionnaires, this study is focused on the needs assessments of social workers and institutionalized single-mothers. Subjects were 4 social workers and 31 institutionalized single-mothers. The results of study showed that institutionalized single-mother families experienced economic, child rearing, emotional problems, negative stigma and the loss of social networks. Future research, theoretical and practical implications are added.

• Journal of the Korean Home Economics Association
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• v.36 no.2
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• pp.19-34
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• 1998

The purposes of this article were to find the general trends of single mothers' stressor, self-esteem, family resources, coping, stress and psychological well-being, and to test a causal model of family resources, coping and stress influencing on psychological well-being. The data were analyzed from the 283 single mothers living in Kwang-ju. The major findings were as follows; 1. Scores of single mothers' stress, family resources were lower than median. But scores of single mothers' stressor, self-esteem, coping, life satisfaction and depression were higher than median. Their problem-focused coping scores were higher than emotion-focused coping. 2. Single mothers' life satisfaction were directly affected by self-esteem, family resources, problem-focused coping and stress, and were indirectly affected by stressor, emotion-focused coping. Single mothers' depression were directly influenced by self-esteem, family resources, emotion-focused coping, problem-focused coping and stress, and were indirectly influenced by stressor.

• Proceedings of the Korean Society of Life Science Conference
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• 2008.10a
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• pp.92.1-92.1
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• 2008

• The Korean Journal of Food And Nutrition
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• v.29 no.5
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• pp.735-745
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• 2016

This study conducted a survey with 203 single households among men and women in their 20s to 40s who were living in metropolitan areas from October 6 to November 4, 2012 in order to investigate the dietary attitude of the single households. The ratio of single households who had three meals a day regularly was 2.85 points, which was lower than the normal level, and it turned out that those in their 20s and 30s had meals more regularly than those in their 40s did (p<0.001). As for the irregular meal time, most were breakfast (85.9%), and it turned out that they often skipped meals mostly because they did not have time to eat and (41.7%) or because that bothered them (26.0%). 62.6% of the single households did overeating and most of them (39.4%) did overeating because of their irregular meals. Of the single households, women or persons who had lived alone for less than 3 years or more than 7 years cooked at home, more often (p<0.05), and most of them (42%) cooked noodles, easy to cook, but women cooked Korean food-based homemade food such as rice (31.7%) or soup and stew (21.2%), often (p<0.05). It turned out that 36.9% of the single households often ate out about two to three times a day, and as for their favorite eating-out menus, 39.4% were Korean food, followed by Western food (23.8%), flour-based food (13.5%), fast food (9.8%), Chinese food (7.3%) and Japanese food (6.2%). Lastly, as for inconveniences when they ate out, most were the 'price' (22.8%), followed by 'too much amount of food for one person' (20.2%) and 'limitations in menu selection' (19.2%). As a result of this study, it appeared that the single households had an irregular dietary life, often did overeating and often ate out, so it is judged that it would be necessary to develop a variety of nutritionally-balanced HMR food and eating-out menus in a reasonable price range for their healthy dietary life.

• Genomics & Informatics
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• v.18 no.3
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• pp.26.1-26.6
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• 2020

Single-cell RNA sequencing (scRNA-seq) has been widely applied to provide insights into the cell-by-cell expression difference in a given bulk sample. Accordingly, numerous analysis methods have been developed. As it involves simultaneous analyses of many cell and genes, efficiency of the methods is crucial. The conventional cell type annotation method is laborious and subjective. Here we propose a semi-automatic method that calculates a normalized score for each cell type based on user-supplied cell type-specific marker gene list. The method was applied to a publicly available scRNA-seq data of mouse cardiac non-myocyte cell pool. Annotating the 35 t-stochastic neighbor embedding clusters into 12 cell types was straightforward, and its accuracy was evaluated by constructing co-expression network for each cell type. Gene Ontology analysis was congruent with the annotated cell type and the corollary regulatory network analysis showed upstream transcription factors that have well supported literature evidences. The source code is available as an R script upon request.

• Journal of The Korean Society of Integrative Medicine
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• v.11 no.3
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• pp.35-47
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• 2023

Purpose : As the population aging deepens, the number of elderly people with arthritis is also continuously increasing. Accordingly, this study intended to identify the factors influencing the health-related quality of life (HINT-8) of the elderly with arthritis according to household type and provide baseline data for developing a measure to enhance the life quality of the elderly with arthritis. Methods : The factors influencing the health-related quality of life (HINT-8) of the elderly with arthritis were identified based on the raw data from the Korea national health and nutrition examination survey conducted in 2021. Data were analyzed with SPSS Statistics ver 25.0 for windows (IBM Corp), and the significance level (α) was set to .05. Statistical analysis was performed with t-test, ANOVA, multiple regression analysis, and post-hoc analysis with Duncan test. Results : The factors that influenced the health-related quality of life (HINT-8) of single-households were medical aid (β=-.17, p=.045), restriction of activity (β=-.17, p=.023), self-rated health status (β=.29, p<.001), and anxiety scale (β=-.36, p<.001). The factors that influenced the health-related quality of life (HINT-8) of multi-households were an age of 75 or over (β=-.14, p=.011), living in rural (β=-.14, p=.003), the outpatient department treatment experience (β=-.09, p=.047), self-rated health status (β=.26, p<.001), anxiety scale (β=-.29, p<.001), and stress (β=-.22, p<.001). Conclusion : Factors affecting the health-related quality of life (HINT-8) of the elderly with arthritis were found to be different between single-person households and multi-person household. Therefore, it is necessary to prepare measures to improve the quality of life of the elderly with arthritis by considering the factors influencing the health-related quality of life (HINT-8) of the elderly with arthritis according to the household type identified in this study.

• Journal of the Korean Home Economics Association
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• v.33 no.2
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• pp.113-127
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• 1995

The purpose of this study was to examine the children's adjustment according to the their problems and problem solving pattern in single mother. The data of this study were abtained from 186 children of single-mother. For analysis of data, Factor analysis, t-test, One-way ANOVA, pearson's correlation, Multiple regression were used The results are as follows; 1. The children's problem are composed seven factors that are house life, emotion, school life, peer-relationships, academic achievement, finicial, future life. The family structural variables to have relationship with the children's problem are age, sex, father's absence reason, SES, mother postering attitude. 2. The mean value of children's problem solving pattern such as seeking religion support and passive appraisal was highest. The children's problem solving pattern were affected by mother's fostering attitude. 3. The inadequacy among children in single-mother was related to mother fostering attitude after father's loss, children's problem and children's problem solving pattern that emphasizes the interdependence of each element in this children's adjustment network.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.30 no.11 s.254
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• pp.1358-1368
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• 2006

This paper proposes a Pareto artificial life algorithm for solving multi-objective optimization problems. The artificial life algorithm for optimization problem with a single objective function is improved to handle Pareto optimization problem through incorporating the new method to estimate the fitness value for a solution and the Pareto list to memorize and to improve the Pareto optimal set. The proposed algorithm was applied to the optimum design of a journal bearing which has two objective functions. The Pareto front and the optimal solution set for the application were presented to give the possible solutions to a decision maker or a designer. Furthermore, the relation between linearly combined single-objective optimization problem and Pareto optimization problem has been studied.