• Journal of Yeungnam Medical Science
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• v.14 no.2
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• pp.383-392
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• 1997

To study the differences of bone mineral density according to the gestational ages and the birth weight and get a reference data for the diagnosis of metabolic bone diseases in the newborn infants, bone mineral densities of the lumbar vertebrae were measured in fifty-three newborn infants born at Yeungnam University Hospital from March 1, 1995 to February 28, 1997, whore gestational ages were between $28^{+3}$ and $41^{+3}$ weeks and who had no intrauterine growth retardation, using dual energy X-ray absorptiometry (X-R 26, Norland, USA) within seven days of life. 1. There was no sexual difference in bone mineral density. The bone density increased significantly as gestational age increased from $0.149{\pm}0.009g/cm^2$ at 28-30wks to $0.229{\pm}0.034g/cm^2$ at 39-41wks of gestational age (p<0.05), but there was no significant difference between bone mineral densities at 33-34 wks and 35-36wks. There was positive linear correlation between gestational age and bone mineral density ($Y=7.5{\times}10^{-3}X-0.082$, r=0.7018, p<0.001). 2. The bone mineral density increased significantly as the birth weight increased from $0.158{\pm}0.020g/cm^2$ in 1,000-1,499 g to $0.251{\pm}0.021g/cm^2$ in 3,500-4,000 g of the birth weight (p<0.05), but there was no significant difference between bone mineral densities in 1,000-1,499 g and 1,500-1,999 g of the birth weight. There was positive linear correlation between the birth weight and the bone mineral density ($Y=3.9{\times}10^{-5}X+0.093$, r=0.7296, p<0.001). There were positive correlations between the bone mineral density and gestational age, and between the bone mineral density and the birth weight. It can be used as a reference data for the further study on the bone mineral metabolism in the newborn infants including preterm babies.

• Korean Journal of Adult Nursing
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• v.21 no.5
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• pp.529-537
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• 2009

Purpose: The purpose of this study was to investigate the correlation of sexual satisfaction and daily stress in breast cancer patients. Methods: Data was collected through self-administered questionnaires and analyzed by descriptive statistics, t-test, ANOVA and Pearson's correlation. Data survey was conducted with 500 conveniently selected breast cancer patients who visited the out patient department in 5 university hospitals in Seoul, Gyung-gi and Gang-won province. Results: The sexual satisfaction of breast cancer patients score was 31.34 and there were significant sexual satisfaction differences by age, education level, menopause and sexual activity frequency. Sexual satisfaction was negatively related with daily stress (r = -.177) especially personal stress (r = -.155), economic stress (r = -.138), stress of self (r = -.181), family stress (r = -.154) and stress about leisure (r = -.139). Conclusion: These findings are expected to make a contribution to creation of ideal sexual rehabilitation nursing interventions for breast cancer patients care nurse. Furthermore continuous and customized education and counseling programs can contribute to promote healthy sexual life for breast cancer patients.

• Journal of Korean Public Health Nursing
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• v.11 no.2
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• pp.171-179
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• 1997

The purpose of this study was to identify the major factors affecting performance of health promoting behavior and Pender's health promotion model was examined. The subjects were 508 workers employed in 4 manufacturing industries, data was collected from May 19th to 24th, 1997 using questionaires and it was used convenient sampling method. Data were analyzed by SPSS Win 6.1 program. The results of this study were as follows 1. The average score of health promoting behavior was 2.47. 2. The Health promoting behavior in the relationships between health promoting behavior and demographic factors, there is statistically significant difference in age(F=2.56, P=.0378), religion(F=6.34, P=.0001), working type(F=4.56, P=.0036)variables. 3. The performance score of health promoting behavior was statistically positively correlated with Definition of health(r=.2471. P=.000), Self-efficacy(r=.1385, P=.002), Internal health locus of control(r=.126, P=.000), External health locus of control(r=.2550, P=.000), Chance health locus of control(r=.3023, P=.000), but negatively with Perceived health status(r=-.2076, P=.000). 4. The major factors were Chance health locus of control. Definition of health, working hours, self-efficacy, External health locus of control. and explained for $39.58\%$ of Health promoting behavior performance score.

• Asian-Australasian Journal of Animal Sciences
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• v.28 no.7
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• pp.993-998
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• 2015

Possibilities of predicting eggshell ultrastructure from direct non-destructive and destructive measurements were examined using 120 Fayoumi eggs collected from the flock at 45 weeks of age. The non-destructive measurements included weight, length and width of the egg. The destructive measurements were breaking strength and shell thickness. The eggshell ultrastructure traits involved the total thickness of eggshell layer, thickness of palisade layer, cone layer and total score. Prediction of total thickness of eggshell layer based on non-destructive measurements individually or simultaneously was not possible ($R^2=0.01$ to 0.16). The destructive measurements were far more accurate than the non-destructive in predicting total thickness of eggshell layer. Prediction based on breaking strength alone was more accurate ($R^2=0.85$) than that based on shell thickness alone ($R^2=0.72$). Adding shell thickness to breaking strength (the best predictor) increased the accuracy of prediction by 5%. The results obtained indicated that both non-destructive and destructive measurements were not useful in predicting the cone layer ($R^2$ not exceeded 18%). The maximum accuracy of prediction of total score ($R^2=0.48$) was obtained from prediction based on breaking strength alone. Combining shell thicknesses and breaking strength into one equation was no help in improving the accuracy of prediction.

• Journal of Nutrition and Health
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• v.33 no.3
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• pp.250-256
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• 2000

Hyperhomocysteinemia has been shown to be associated with increased risks for macrovascular angiopathy. The present study was conducted to document the relationship between plasma homocysteine levels and the presence of macrovascular angiopath in patients with Type II diabetes mellitus. Plasma total homocysteine was determined by a HPLC-fluorescence detection method in a total of 238 subjects, 127 diabetic patients and 111 control. Dietary information including folate intake was assessed by a 24-hour recall in a total 113 subjects, 70 diabetic patients and 43 control. Folate intake was significantly lower inn patients with diabetes mellitus than that in the control. The lowered folate intake in the diabetic patients was mainly due to reduced intakes of fruits and vegetables. The average plasma homocysteine level of patients with MA was 14.2$\mu$㏖/L, which was significantly higher than that of either the patients without MA(11.4$\mu$㏖/L) or the control(11.5$\mu$㏖/L). Twenty five percent of the diabetic patients were positively correlated with age (r=0.20), body weight (r=0.28), body mass index (r=0.28), body mass index (r=0.18), diastolic blood pressure (r=0.20), and total cholesterol (r=0.14). cigarette smokers had significantly higher levels of plasma homocysteine than the non-smokers. Further prospective studies are needed to investigate whether folate or other B vitamin supplementation could be beneficial for the prevention of hyperhomocysteinemia or macrovascular angiopathy in the diabetic patients.

• Korean Journal of Adult Nursing
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• v.29 no.1
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• pp.51-62
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• 2017

Purpose: The purpose of this study was to provide data about the risk factors related to falls among elderly patients with dementia using meta-analysis. Methods: Key words used for search through electronic database (CINAHL, PubMed, Ovid-MEDLINE, RISS, KISS, DBPIA, National Assembly Library) included 'dementia', 'Alzheimer', 'fall'. Twenty studies met the inclusion criteria for the meta-analysis and 'R' version 3.2.2 was used to analyze the correlated effect size. Results: Study results showed that risk factors related to falls were identified as the demographic (age, gender, education), dementia-related (disease duration, cognition), physical (body mass index, walking, balance, activity of daily living, use of walking aids, number of medications including psychotropic drugs, musculoskeletal problems, parkinsonism, comorbidity), psychological (neuropsychiatric symptom, depression), environmental (Physical environment), and fall-related (fall history, high risk group of fall) factors. The effect size of risk factors such as high risk group of fall (r=.35), use of walking aids (r=.33), depression (r=.31), psychotropic drugs (r=.27), Musculoskeletal problems (r=.25) were higher than the other risk factors. Conclusion: Based on the findings of this study, strategies to improve elderly patient's depression, intensive care for high risk group of fall, and adequate training with walking aids are needed for prevention of falls in elderly patients with dementia.

• Korean Journal of Applied Biomechanics
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• v.27 no.2
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• pp.109-116
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• 2017

Objective: This study aimed to investigate the relationship between leg stiffness and kinematic variables according to load while running. Method: Participants included eight healthy men (mean age, $22.75{\pm}1.16years$; mean height: $1.73{\pm}0.01m$; mean body weight, $71.37{\pm}5.50kg$) who ran with no load or a backpack loaded with 14.08% or 28.17% of their body weight. The analyzed variables included leg stiffness, ground contact time, center of gravity (COG) displacement and Y-axis velocity, lower-extremity joint angle (hip, knee, ankle), peak vertical force (PVF), and change in stance phase leg length. Results: Dimensionless leg stiffness increased significantly with increasing load during running, which was the result of increased PVF and contact time due to decreased leg lengths and COG displacement and velocity. Leg length and leg stiffness showed a negative correlation (r = -.902, $R^2=0.814$). COG velocity showed a similar correlation with COG displacement (r = .408, $R^2=.166$) and contact time (r = -.455, $R^2=.207$). Conclusion: Dimensionless leg stiffness increased during running with a load. In this investigation, leg stiffness due to load increased was most closely related to the PVF, knee joint angle, and change in stance phase leg length. However, leg stiffness was unaffected by change in contact time, COG velocity, and COG displacement.

• Proceedings of the Technology Innovation Conference
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• 1999.06a
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• pp.140-174
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• 1999

This study proposed the model of research describing the positive impact of fitness between career orientations and reward systems on the performance of R&D professionals. To prove the propositions of the model, a questionnaire survey was conducted 204 professionals in 19 R&D research institutes related with electronics and communication industries provided answers for the questionnaire. The results of the survey were summarized in the following. 1) Career orientations of R&D professionals can be categorized into three dimensions : managerial, technical/professional, and project orientation. 2) The rewards consist of four dimensions : financial, social status, job content, and professional reward. 3) The age and tenure of R&D professionals has the negative impact on the project orientation. 4) The education level of R&D professionals has the positive impact on the professional orientation. 5) The sex was found as insignificant variable career orientation. 6) The person with strong prefers social status rewards to other rewards, the professional orientation is prefer to professional rewards, and the project orientation is prefer to job content rewards. 7) For the professionals with professional and project orientation, the congruence with each reward delivered positive impact on job satisfaction, job involvement, and organizational commitment. However it created negative impact on turnover intention and job stress.

• STI Policy Review
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• v.4 no.1
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• pp.14-26
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• 2013

The $1^{st}$ National Plan for Aging Society with Low Fertility, which the Korean government announced in 2006, caused the gradual increase of R&D investment in order to prepare for an aging society in Korea. This study explores if the directions and strategies of R&D projects related to aging are suitable to improve the quality of life for elderly people and establish a sustainable aging society by analyzing the features of R&D investment from 2004 to 2010. The results show that most R&D projects conducted by departments focus on the development of assistive devices for the elderly to support everyday lives. The Korean government's R&D policy to prepare for an aging society is based on the narrow interpretation of Quality of Life (QoL) in an aging society that tries to resolve the socioeconomic problems of the elderly; however, the policies have ignored the independence of active elderly individuals and the social integration of the young and elderly generations. The research shows that a paradigm shift is required from a 'Senior' to 'Aging Society' because almost 1/3 of the Korean population is over 65 years old and the expansion of the research embraces from assistive technologies for the elderly to the design of social infrastructure such as transportation, education and work.

• Journal of the East Asian Society of Dietary Life
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• v.10 no.6
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• pp.522-529
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• 2000

This study was carried out to find the factors which are related to the weight gain during pregnancy of women and infant birth weight. The information of the general characteristics and pregnancy outcomes of the 506 women who had a delivery during Jan to Dec, 1997 in a hospital at Taegu area were collected from the medical records. The results are as follows. The mean age of the subjects was 29 years old and the average prepregnancy weight was 52.75kg. They gained 13.51kg of weight during the pregnancy. The weight gain during pregnancy was higher in prepregnancy BMI<20kg/m$^2$, the infant weight was heavier in groups that had over 14kg of weight gain during the pregnancy than other groups. The prepregnancy BMI was negatively correlated to weight gain during pregnancy(r=0.2825), and positively correlated to number of pregnancy(r=0.2146), number of living delivery(r=0.1409), and infant weight(r=0.1250). The baby weight was Positively correlated to weight gain during pregnancy(r=0.1392) and Apgar score(r=0.1627). The results showed that the prepregnancy BMI and weight gain during pregnancy may be the influential factors on the infant weight, thus we need to develop the specific nutritional management program according to the status of prepregnancy weight.