• 한국생활과학회지
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• 제24권3호
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• pp.327-339
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• 2015

The purpose of this study was to investigate the relationship of family resilience, gratitude, and child-rearing attitude and to identify predicting factors of family resilience among mothers of young children. A correlative research design was be used for this study with self-administered questionnaires. The subjects were 248 mothers of young children from kindergarten located in Jeonnam and Gwangju provinces in Korea. Data were collected between May to June, 2013. Descriptive statistics, Pearson's correlation coefficient, and multiple regressions with PASW Statistics 18 (SPSS 18.0) program were used for data analysis. The major findings are summarized as follows: (1) Family resilience was closely related to gratitude and four types of child-rearing attitudes. Gratitude was closely related to four types of child-rearing attitudes. And rejective attitude had significantly negative relations family resilience and gratitude. (2) The significant factors affecting family resilience were mother's education level, gratitude, affective attitude, rejective attitude, autonomous attitude and controlling attitude which explained 63% of the variance. The results indicate that gratitude and child-rearing attitude were significant factors associated with family resilience among mothers of young children. In order to increase the family resilience among mothers of young children, family programs that deal with both gratitude and child-rearing attitude should be designed.

• Journal of Nutrition and Health
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• 제30권3호
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• pp.349-359
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• 1997

This study was designed to study sources of variability(subjects, day by day, season, day of week, sequence, number of repeated days, compliance etc.) in multiple 24-hour dietary recall method. Dietary intakes of college women in Seoul were obtained using 24-hour dietary recalls, consecutive 7 days, 4 times for 1 year. The result of this study shows that 1) the reproducibility of multiple 24-hour recalls is low(intraclass correlation coefficient<0.3), 2) the intraindividual variations of all nutrients are more than 80%, 3) the major components of variation are interindividual vriability and intraindividual variability(within person variability and methodologic error). There were small but statistically significant season and compliance effects. 4) the ratio within-person varation to between-person variation for absolute and transformed nutrient intakes except some nutrients such as vitamin A, vitamin C, energy from protein and fat etc, was less than 1.7 the minimum numbers of days needed in 24-hour dietary recalls to estimate usual intake for this group were 1 to 21 days. And the numbers of days needed to get the usual intake of an individual varied among individuals and within individuals for different nutrients, ranged from 1 days for log carbohydrate(% energy) to 470 days for Na. 6) There were greater than 0.7 correlation coefficients between the average nutrient intakes of 12 days and intakes of 28 days. Therefore, it was desirable to take the 24-hour recall more than 12 times, repeating 3 days every season.

• 한국병원경영학회지
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• 제23권3호
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• pp.72-86
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• 2018

This study was designed to identify the adult attachment style among hospital nurses, and to examine its effect on nurses' job stress and organizational commitment. Self-administered survey questionnaires with structured instruments were developed, and a total of 281 responses from five small to medium-sized hospitals were used for statistical analyses with SPSS Windows version 24.0 program. Major findings of the study are three fold. First, among the four styles of adult attachment, found in 30.6% of survey respondents, stability style was the most popular, followed by fear style(28.5%), disregard style(24.2%), and devotion style(17.8%). Second, according to the general characteristics of study participants, adult attachment style showed a significant difference in age($x^2=23.29$, p=.025). Third, multiple regression analyses showed that hospital nurses with the fear style among other adult attachment styles had a significantly higher job stress compared to those with the stability style. The fear style also affected the nurses' organizational commitment level in a negative way, but the effect was only marginal. Results from this study suggest that customized program based on the nurses' adult attachment style should be developed to enhance their organizational commitment while reducing job stress in small to medium-sized hospitals.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.113-116
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• 2003

To maximize the productivity in machining molds and dies, machine tools should operate at high speeds. During the high speed operation of moving frames or spindles, vibration problems are apt to occur if the machine tool structures are made of conventional steel materials with inferior damping characteristics. However, self-excited vibration or chatter is bound to occur during high speed machining when cutting speed exceeds the stability limit of machine tool. Chatter is undesirable because of its adverse effect on surface finish, machining accuracy, and tool lift. Furthermore, chatter is a major cause of reducing production rate because, if no remedy can be found, metal removal rates have to be lowered until vibration-free performances is obtained. Also, the resonant vibration of machine tools frequently occurs when operating frequency approaches one of their natural frequencies because machine tools have several natural frequencies due to their many continuous structural elements. However, these vibration problems are closely related to damping characteristics of machine tool structures. This paper presents the use of polymer concrete and sandwich structures to overcome vibration problems. The polymer concrete has high potential for machine tool bed due to its good damping characteristics with moderate stiffness. In this study, a polymer concrete bed combined with welded steel structure i.e., a hybrid structure was designed and manufactured for a high-speed gantry-type milling. Also. its dynamic characteristics were measured by modal tests.

• Journal of Preventive Medicine and Public Health
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• 제23권4호
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• pp.428-435
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• 1990

This study was designed to investigate whether recruitment of physicians and dentists has been restricted to a social network, such as familial or kinship groups. The data was collected through a self-administered questionnaire survey distributed to a sampling of general physicians, specialists (internists, surgeons, other specialists), and dentists in August 1990. The major findings are as follows : 1) Total number of respondents was 405 ; of these, general physicians made up 48.9%, internists 10.4%, surgeons 15.8%, other specialists 4.9%, and dentists 20.0%. 2) 38.5% of the respondents had physicians or dentists in their immediate family or were related in some way to one. Those from urban areas, whose parents were highly educated, and whose father was a professional had more physicians or dentists in their family or kinship. 3) Parents of 7.1% of the respondents, brothers or sisters of 10.1%, grand parents of 1.7%, uncles or aunts of 7.9%, and cousins of 22.0% were physicians or dentists. 4) The majority of physicians or dentists in familial or kinship network specialized n surge, 32.3%, followed by internal medicine ; current worksites were noted as clinics by 30.8%, followed by general hospital, university hospital, and so on. The respondent's ma discipline tended to follow familial or kinship example. Consequently, it was concluded that physicians and dentists have been recruited within restricted familial or kinship network.

• 대한가정학회지
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• 제37권1호
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• pp.67-78
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• 1999

The purpose of this study was to analyze the view of housing of university students. The view of housing was investigated in four stages - housing consciousness, resident opinion, ideal housing type and housing needs - in this study. The data were collected through the self-entry questionnaire designed for this study. The statistical analysis methods used in this study are frequencies, mean, percentage, {\chi}^2-test, factor analysis and t-test using the SPSS for Window (version 7.5). The results are as follows : 1) The major findings of the housing consciousness were that the university students preferred the detached house in the future. 2) The resident opinion of university students showed that the group space was more important than the private space. 3) In the ideal housing image, they wanted psychological and physical comfort from their houses. 4) The points of consideration when they select their future housing is classified of 5 factors : Indoor-outdoor environment, neighbourhood environment, investmental value, design and size of house.

• 여성건강간호학회지
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• 제12권1호
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• pp.53-60
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• 2006

Purpose: This study aimed to explore changes in symptom distress and functional status in gynecologic cancer patients during the entire treatment cycles of chemotherapy. Methods: A prospective and longitudinal study with repeated measures was designed. Symptom Distress Scale and Karnofsky Performance Status Index were included in a daily log developed for self-administration. A total of 39 patients with a mean age of 48.4 years participated. Results: The levels of symptom distress and functional status changed significantly over the six cycles. Symptom distress kept increasing until its peak at the fourth cycle, while the functional status scored lowest at the first cycle, then it improved as the cycle repeated. In each cycle, symptom distress was marked higher during the first 6 days accompanying poor functional status. However, both changes did not recover completely until the end of each cycle. Conclusion: Nursing assessment and intervention need to be provided based on these changing patterns to help cancer patients cope and adjust successfully during the long treatment period. Further studies are needed to examine the impact of the major symptoms on psychological responses, quality of life, and outcomes of the cancer treatments.

• 대한수학교육학회지:학교수학
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• 제2권2호
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• pp.475-487
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• 2000

As a result of carrying out t-test against the learning activity that used the learning materials designed by level, significant disparity was found. Thus, it was found that hte effect of this learning activity became more visible with lapse of time. But the major cause by which there appeared small significant disparity as a result of testing is that the units of experiment were limited and that the period of using the learning materials was not long. In an analysis on the results of interest test, the experimental class also appeared to show the average score that was higher than that of the comparative class by 0.10 after converting a decimal point. The outcome of attitude test was that the experimental class showed a higher average score by 0.11, as a result of converting a decimal point, than that of the comparative class. So, a large number of students showed an improved reaction. But, there seemed some problems of the learning materials or the method of progressing the activity in changing under achievement students or students who avoided studying math. When the effect of the level-based learning activity was investigated, more than 80% of the experimental class’s students showed a positive reaction. Thus, it could be judged that students, who felt some burden at studying math, might be served more largely, not by teacher’s uniform instruction, but by an individual learning using the level-based learning materials that enabled them to do a systematic self-learning for themselves.

• 한국철도학회논문집
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• 제6권4호
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• pp.221-231
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• 2003

Most rail system related simulators currently used are designed to simulate only one discipline system. This obviously assumes the other discipline systems are running regularly not being affected by the system being simulated. In this paper a multi discipline simulator is proposed and its design concept is presented. A multi discipline simulator is the simulator in which major subsystems with different technical discipline are simulated simultaneously. The advantage of the simulator is in that it makes it possible to analyze the systems behavior while other discipline system vary. With this we can identify the possible multi-discipline problems and even find their solutions. A proto type simulator has been developed using object oriented programming. Object concept was judged best suitable to model the various multi-discipline self-controlling railway subsystems. It was applied to the target system, which is under development by the Korea Railroad Research Institute. The test results shows it is very useful in designn verification. It could also be a good tool in research and development work to improve the system.

• 대한간호학회지
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• 제40권6호
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• pp.882-891
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• 2010

Purpose: This study was designed to identify burnout and factors influencing burnout in contingent nurses. Methods: A cross-sectional design was conducted with a sample of 228 contingent nurses randomly selected from 25 general hospitals in Korea. The tools used for this study were scales measuring burnout (8 items), job stress (8 items), job satisfaction (9 items), self efficacy (9 items), organizational commitment (9 items), empowerment (9 items), autonomy (7 items) and social support (8 items). The data were analyzed using SPSS 15.0 employing Pearson correlation coefficients and multiple regression analysis. Results: The mean score for burnout in contingent nurses was 3.05 points. Factors influencing burnout in contingent nurses were identified as job stress (${\beta}$=.40), satisfaction level with current ward (${\beta}$=-.25), organizational commitment (${\beta}$=-.21), job satisfaction (${\beta}$=-.19) and empowerment (${\beta}$=-.16). These factors explained 65.0% of burnout reported by contingent nurses. Conclusion: The results indicate which factors are major factors influencing burnout in contingent nurses in general hospitals. Therefore, these factors may serve as predictors of burnout in contingent nurses.