• Journal of Korean Society for Quality Management
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• v.11 no.1
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• pp.10-17
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• 1983

This paper studies item-life test plans with the specified item mean life $T_1$ (MTBF) - Producer's risk ${\alpha}$ and item mean life $T_2$ (MTBF, $T_2$ < $T_1$) - Consumer's risk ${\beta}$ when the probability of item survival follows the Weibull distribution (known shape parameter) as a expansion of [1]. And Operating Characteristic Curves and Average Life-testing Times of item-life test plans are computed for this paper and [1]. Cost analysis procedures are same as [1]. These results are computed by using computer program written in Level II Basic for Apple II Plus Micro-computer. Both this paper and [6] reduce the life-testing time for Weibull distribution in comparision with Exponential distribution, but results of [6] were computed for different criterions from this paper.

• Journal of Korean Dental Hygiene Science
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• v.2 no.2
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• pp.53-60
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• 2019

Introduction: This study aimed to investigate the adaptation to college life of dental hygiene students. Methods: A total of 300 students in the 3-year course, and 200 students in the 4-year course at the Department of Dental Hygiene, were selected. A self-reported questionnaire was used between 27th June and 31st August 2017. From this, 439 questionnaires were collected and analyzed. Results: 1. The overall degree of adaptation to college life, according to varied general characteristics of the subject students, appeared to show that male students had a higher degree of adaptation than female students. It also appeared to be higher in students that had a higher level of academic accomplishment(<0.001). 2. The average score of the degree of adaptation to college life was 2.57 points(full score of 4.00 points). Social adaption had the highest score of 2.92 points, while academic adaptation had the lowest score of 2.37 points. Regarding the subordinate domains of adaptation to college life, the average score of attachment adaptation of students in the 3-year course of the Department of Dental Hygiene(2.69 points) appeared to be higher than that of students in the 4-year course(2.52 points). The difference between these scores was statistically significant(p=0.001). 3. The effects of varied academic systems upon the degree of adaptation to college life were also analyzed. Emotional and attachment adaptation to college, as well as the academic accomplishment of students in the 3-year course, was distributed over a range of 3.0~3.5. This was significantly different compared to students in the 4-year course(p<0.05). Conclusion: It is necessary to develop stepwise and continuous educational programs to enable better college life adaptation for students in the Department of Dental Hygiene.

• Journal of Agricultural Extension & Community Development
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• v.16 no.3
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• pp.503-532
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• 2009

This study aims at identifying any difference in the quality of life according to the patterns of living together in the family for the aged women who live in the rural areas. The findings of this study can be summarized in brief. First, those aged women who live alone showed a higher ratio of works like farming with less average income and less perception of living standards but better ADL than those of the aged women who live together with their family. Second, as a result of logistic regression analyses to identify factors to predict the patterns of living together in the family for the aged women in the rural areas, those aged women who live alone showed more cases of farming, higher ADL level, higher degree of economical preparations and more perception of intimacy with their offspring than those of aged women who live together with their family. Unlike these results, those aged women who live together with their family have less average income, more phone calls with their neighbor and higher quality of life that those of aged women who live alone. Third, as a result of impact variables in the quality of life by the pattern of living together in the family for the aged women in the rural areas, those aged women who live together their family showed higher quality of life with better preparations for the health, emotion and economy for their aged life, and with less number of offspring and more frequency of phone calls with their neighbor. In addition, those aged women who live along in the rural areas showed higher quality of life with better emotional preparations, better economic preparations, more number of offspring, more friendly with their neighbor and more emotional supports.

• Journal of The Korean Society of Integrative Medicine
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• v.8 no.1
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• pp.177-191
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• 2020

Purpose : This study aimed to evaluate the relationship between self-esteem and quality of life according to the job satisfaction occupational therapists, and to contribute to wards providing positive directions to improve the quality of work performed by the occupational therapists and their quality of life. Methods : A total of 118 occupational therapists working on site were surveyed during the study period, from April 8, 2019, to May 10, 2019. The collected data were expressed as frequency and percentage and were subjected to Pearson's correlation analysis and multiple regression analysis using SPSS (Windows ver. 20.0). Results : First, the occupational therapists' job satisfaction job satisfaction averaged 3.20 points, with the highest chance of promotion among the lower factors, followed by the conservative level, the work itself, and interpersonal relationships. Second, the analysis of job satisfaction according to the general characteristics of the subjects revealed statistically significant differences with respect to age, marital status, highest education level, service period, average pay, and average working hours of the occupational therapists. Third, the sub-category of job satisfaction and self-respect showed the most positive correlation with the person-in-charge, and the sub-category of job satisfaction and the quality of life showed the most positive correlation with interpersonal relationships. This shows that higher job satisfaction increases the self-esteem and quality of life. Fourth, the significant task satisfaction sub-factor predictor for the self-esteem of the occupational therapists was the job itself, and the significant job satisfaction sub-factor predictor for quality of life was interpersonal relationships. Conclusion : The results of this study showed that among the sub-categories of job satisfaction of the occupational therapists, work itself and interpersonal relationships had the greatest effect on the self-esteem and quality of life of the occupational therapists.

• Journal of agricultural medicine and community health
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• v.27 no.1
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• pp.65-78
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• 2002

This study was conducted to identify the social support to living alone elderly in some rural communities and the level of life satisfaction. For the purpose of this study, face-to-face interviews and questionnaire were performed with 315 old people(male 43 and female 272) aged over 65 living alone in rural communities covered by 14 community health posts within Gyeongsangbuk-do Province randomly selected. The followings are summaries of findings; The average score of support from their children was $4.29{\pm}2.73$ out of 8. Variables that showed a significant difference were religion, level of living, type of medical insurance, frequency of meeting with children, time taken from houses of children by usual means of transportation, and subjective health status. It was found that the score of support from children was high for the elderly who had a religion, a good level of living, benefit from medical insurance, a high frequency of meeting with children, or a good subjective health status, or who resided close to their children's houses. The level of the support from friends and relatives showed a significant difference depending on the subjective health status, of which the average score was $4.13{\pm}2.61$ out of 8. The average score of the level of life satisfaction was $6.83{\pm}4.24$(male $7.60{\pm}4.09$ and female $6.71{\pm}4.26$) out of 17. Male elderly showed the higher level of life satisfaction than female elderly. Variables that showed a statistically significant difference in the level of life satisfaction were religion, level of living, medical insurance, hobby, children, disease, subjective health status, and ADL. That is, the level of satisfaction with life was found to be higher for the elderly who had a religion, a good level of living, benefit from medical insurance, a hobby, children, no diseases, or a good ADL, or who thought that they are healthy. The regression analysis with support from children as a dependent variable showed that the level of support from children was higher for the elderly who had a good level of living, frequency of meeting with children, or a good subjective health status. The regression analysis with the level of support from friends or relatives was higher for old people who had a good level of living. The regression analysis with the level of life satisfaction as a dependent variable showed that the factors which related to the level of satisfaction were sex, religion, level of living, hobby, ADL, and subjective health status. That is, it was found that for male elderly who had a religion, a good level of living or a hobby, or who thought that they were healthy, the level of life satisfaction was higher.

• International Journal of Precision Engineering and Manufacturing
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• v.3 no.2
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• pp.78-86
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• 2002

In general, X-ray diffraction method detects the changes of crystal lattice under material surface using the angle of diffraction 2$\theta$. This technique which deals with in the presented paper can be applied to a behavior on the slipped band or the micro crack cause to material degradation. The relation between half-value breadth and cycle numbers shows three stages, which consist of rapid decrease in the initial cycle, slight decrease in the middle cycle, and then rapid decrease in the final cycle. The ratio of half-value breadth has a constant value on B/B$\_$0/ - N diagram under the loading condition except early part of fatigue life. The ratio of half-value breadth B/B$\_$0/ - log N$\_$f/ with respect to number of cycle to failure N$\_$f/ has linear behavior on B/B$\_$0/ - log N$\_$f/ diagram. Therefore, the evaluation of fatigue life by the average gradient has much less mean error than the estimation of fatigue life by log B/B$\_$0/ - log N/N$\_$f/ relation.

• Journal of the Korean Home Economics Association
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• v.36 no.5
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• pp.125-135
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• 1998

The purpose of this study is to investigate the overall levels of the middle-aged employed men's attitudes toward retirement and plans for post-retirement life, and to explore the relative effects of personal, family, and job characteristics on retirement attitude and the level of retirement plan. The data were collected from the 438 middle-aged (ranging from 41 to 50) employed men through the structured questionnaires. The data were analyzed using frequency, percentile, average, standard deviation, and multiple regression analysis. The results of the data analysis show that most of the respondents had neither positive nor negative attitude toward retirement and the level of planning for post-retirement life was slightly higher than average score on the scale. Next, the positive attitudes of middle-aged employed men toward retirement were observed from those who have higher education, larger household income, higher job security and lower job stress respondents who hold professional, administrative, or official jobs were more positive toward retirement than those who hold professional, administrative, or official jobs were more positive toward retirement than those who hold manufacturing or sales job. A well-planned post-retirement life was found among those who have better health, higher job satisfaction, job security and job orientation. Job characteristic variables such as job security and job satisfaction showed stronger impact than personal or family ones on the attitude toward retirement and the level of retirement planning. Household income and health also had significant effects.

• Research in Community and Public Health Nursing
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• v.12 no.2
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• pp.428-436
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• 2001

Purpose: To compare the differences of health-promoting behavior. life satisfaction and self-esteem between the young old and the old old. Method: The subjects were a volunteer sample of 200 elderly in K city. The instruments for this study were Health Promoting Lifestyle Profile (47 items). Life Satisfaction Scale(20 items) and Self-Esteem Scale(10 items). Frequency, percentage, t-test and Pearson's correlation coefficient with SAS program were used to analyze the data. Result: 1) There was a statistical significance(t=2.479. p<05) in health-promoting behavior between the young old and the old old which showed, on an average. 3.306 points in the young old and 2.872 points in the old old. 2) There was a statistical significance ( t = 1. 530. p<05) in self-esteem between the young old and the old old which showed. on an average. 3.091 points in the young old and 2.981 points in the old old. Conclusion: The old old is less the level of health-promoting behavior and self-esteem than the young old. It is necessary to develop comprehensive health-promoting program in order to improve a healthy lifestyle for the old old.

• Journal of the Korean housing association
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• v.11 no.4
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• pp.35-42
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• 2000

The purpose of this study is to prepare desirable elderly housing facilities system in compliance with various characteristics of each region and to help establish policies regarding elderly housing facilities. Present realities and problems of the eight free welfare facilities of two sorts, a free home for the aged and free nursing home in Jeju Province have been studied. In Jeju Province, the average life span and the ratio of the aged people older than 65 are longer and higher than other provinces and the mentality of self-reliance is more widespread. The results are as follows : 1) The average age of the aged is 70 or older and more facilities are located in rural districts. 2) Some facilities are located in the places where are not adequate for life of the aged, and not even suitable as welfare facilities for the aged. 3) Housing environmental conditions of the facilities are relatively good, while indoor facilities for recreation and social life were not well equipped. 4) Life in the facilities can be assessed relatively free, while individual privacy is not well protected. 5) Major community contacting activities included home help service, participation in regional activities, opening facilities to the community.

• Journal of muscle and joint health
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• v.5 no.1
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• pp.72-82
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• 1998

The purpose of this study was to identify functional impairment and psychological status and to analyze their relationships in patients with chronic arthritis. The sample was consisted of 75 arthritic patients who visited H hospital and S welfare center. Functional impairment was measured by ADL, pain, and the number of painful joint. Psychological status was measured by depression, self-efficacy, and quality of life. Data was analyzed by frequency, mean ${\pm} SD$, Pearson's correlation coefficient, and Stepwise multiple regression. The results of this study were as follows : 1. In functional Impairment, ADL was below average which means somewhat difficult, pain was above average, and the number of painful joint was 9.20. 2. In psychological status, scores of quality of life was 97.89, depression was 41.28, self-efficacy was 895.35. 3. Pain was negatively correlated to self-efficacy, ADL and quality of life, and positively correlated to depression. 4. Self efficacy and depression explained 45% of the variance in quality of life. Therefore, it is suggested that nursing intervention improving psychological status would be useful for patients with chronic arthritis. Especially, it is very important to implement nursing intervention focused on increasing self-efficacy and decreasing depression.