• Research in Community and Public Health Nursing
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• v.25 no.1
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• pp.65-73
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• 2014

Purpose: The aim of this study is to clarify the level of health literacy, health risk perception and health behavior of Korean elders and to determine the impact of their health literacy and health risk perception on their health behavior. Methods: A descriptive correlation study was conducted with 188 elders aged 65 or older in senior welfare centers in Busan. Questionnaires were used to measure levels of health literacy, health risk perception, and health behavior. Descriptive statistics, t-test, ANOVA, Kruskal Wallis test, Pearson's correlation, and hierarchical regression were performed. Results: 43.6% of the subjects had low levels of health literacy. There was a negative relation between health literacy and health risk perception, and between health risk perception and health behavior. There was a positive relation between health literacy and health behavior. Health concern, health literacy affected health behavior. Health literacy independently accounted for 24% of health behavior. Health risk perception didn't affect health behavior. Conclusion: Many of the Korean elders had low levels of health literacy and health literacy was independently associated with health behavior. These findings show that interventions for improving health literacy are necessary to enhance health behavior of the elderly.

• Research in Community and Public Health Nursing
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• v.25 no.1
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• pp.24-32
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• 2014

Purpose: The purpose of this study is to describe the prevalence of suicidal ideation and to investigate related factors contributing to suicidal ideation in elderly people with focus on comparison of gender differences. Methods: From the database of the Fourth Korean National Health and Nutrition Examination Survey (KNHANES-IV), the researchers selected 3,164 old adults aged over 65. The original study was a population-based epidemiological survey of health and nutrition in a stratified multistage clustered probability design. Data were analyzed by using ${\chi}^2$-test and t-test and multiple logistic regression with the SPSS/WIN18.0 program. Results: Suicidal ideation in women (37.5%) occurred more frequently than men (17.5%). Depression, stress, restriction on activities and quality of life were significant variables of suicidal ideation in both the men and women aged 65 over. Low educational levels and economic states were significantly associated with suicidal ideation in men but not in women. Conclusion: The development of a suicide prevention program for elders requires different approaches to the genders respectively. It is also recommended that programs be developed that can help control the variables identified in this study along with a follow-up study for verifying the model.

• Journal of Sensor Science and Technology
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• v.18 no.1
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• pp.33-41
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• 2009

A multilevel acoustic Fresnel lens (MAFL) for the ultrasonic imaging transducer of which center frequency is approximately 5.MHz was newly designed and fabricated. The phase level of the lens was 64, and the focal length and the aperture width were 30.mm and 11.mm, respectively. The characteristics of impulse response, acoustic field and imaging performance of the transducer attached the lens were compared with the transducer attached a conventional refraction type acoustic lens (RAL). The results show that the center frequency, the loop sensitivity, and the focal depth of the MAFL transducer were higher or larger than those of the RAL transducer by approximately 0.2.MHz, 1.4.dB, and 2.mm, respectively. Consequently, it was shown that the brighter acoustic images with higher lateral resolution and the increased imaging performance for deep targets can be obtained by using the MAFL transducer.

• Research in Community and Public Health Nursing
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• v.18 no.2
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• pp.232-241
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• 2007

Purpose: The aim of this study was to explore the health-related quality of life of caregivers for demented elders. Method: The subjects of this study were 170 pairs of demented elders and their caregivers. Socio-demographic characteristics of the demented elders and the caregivers, Barthel index and SF-36 were used in this study. Data analysis procedure included t-test, ANOVA, Pearson correlation coefficient, and hierarchical multiple regression. Results: The score of overall health-related quality of life (HRQoL) was 288.62 in norm-based scoring. The major factors that affect HRQoL of the demented elders' caregivers were burden, the age of the caregiver, ADL and gender of the demented elder, and these factors explained 34.5% of HRQoL. Conclusion: The factors significantly affecting the caregivers' HRQoL were burden, the age of the caregiver and ADL. The effective social support system should be considered in respective nursing interventions to decrease the level of burden and to increase HRQoL in demented elders' caregivers. Further studies and efforts will be needed to investigate preceding factors of burden and HRQoL.

• Research in Community and Public Health Nursing
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• v.16 no.3
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• pp.260-269
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• 2005

Purpose: This study were to understand the caregiving situation of families with the demented elderly and to develop a self-help program for them. Method: A self-help program was designed to increase caregivers' confidence and skills in problem solving. In addition, it was designed to provide information about the demented elderly. The self-help program of this study was composed of nine sessions. Result: Family caregivers of elderly patients with dementia obviously experience high level of stress. which often leads the caregivers to negative outcomes such as depression, interference with social activities and health difficulties. That is, caring is stressful for caregivers because the demands of the caregiving situation tend to overwhelm the caregivers' coping resources. Therefore, families with demented elderly persons need assistances in order to be relieved from their care burden. Conclusion: The self-help program includes the understanding of dementia, the family caregiving experiences of the demented elderly persons, the time for self-care, the search for helping, the improving of interpersonal relations and communications.

• Research in Community and Public Health Nursing
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• v.27 no.3
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• pp.193-201
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• 2016

Purpose: The aim of the study is to determine factors influencing quality of caregiving by caregivers for the elderly with dementia. Methods: Data were collected from 87 caregivers for elders with dementia who had visited in Busan Metropolitan Center for Dementia and D-University hospital outpatient center from July 10 to September 30, 2015. A self-reported questionnaire was used to assess the severity of the elders' dementia and knowledge of dementia, burdens and quality of caregiving by the caregivers. The SPSS 21.0 version program was used for data analysis. Data were analyzed using descriptive statistics, Pearson's correlation, t-test, ANOVA and multiple regression. Results: Significant predictors of quality of caregiving by caregivers included caregivers' burdens (explanation power 25%), knowledge of dementia (explanation power 4%) and levels of education (explanation power 3%). These factors explained 32.3% of the variances in quality of caregiving. Conclusion: Burdens on caregivers were a major factor that decreased quality of caregiving, and knowledge of dementia was a factor that increased it. These findings show that educational programs and intervention for reducing burdens and improving knowledge of dementia are necessary to improve quality of caregiving by caregivers.

• Journal of Korean Public Health Nursing
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• v.21 no.2
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• pp.182-192
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• 2007

Purpose: The objectives of this study were to define basic data for developing silver services related to goods, medical care, finance, leisure and residence. Method: In this cross-sectional study, the subjects were 792 pre-elderly and 382 elderly. The data were collected 2005 by using a structured questionnaire from Aug. 19 to Sep. 5. Data were analyzed using descriptive statistics on the SPSS version 12.0 for windows. Result: The pre-elderly had the intention to use massage chair(36.6%), homecare service(29.8%), national pension(35.9%), sports(48.5%) and personal house(59.5%) in the ares of silver goods, medical care, finance, leisure and residence, respectively. The elderly wanted sphygmomanometer(38.7%), homecare service(27.7%), pocket money from their offspring (40.5%), sports(33.5%), and personal house(74.8%). They wanted manpower in the area of reforming of living place, leisure time and education, counseling of silver goods, and management of finance. Conclusion: Based on this study findings, the pre-elderly are thoroughly established for their future than the elderly. It is important to upgrade the silver services and to prepare the manpower for the pre-elderly and the elderly in the future of the aging society.

• The Korean Journal of Pain
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• v.14 no.1
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• pp.19-25
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• 2001

Background: Transcutaneous electrical nerve stimulation (TENS) has been used widely, but its effects are controversial. This is probably due to the varying intensity and type of pain. We designed a study to assess the effects of the TENS on the RIII nociceptive flexion reflex as the resting pain level and the temporal summation as a repeated, movement related pain in 7 normal volunteer subjects. Methods: High frequency (80 Hz), non-noxious TENS was applied over the left popliteal fossa for 20 minutes. Ipsilateral RIII reflexes induced by single electrical stimulus and temporal summation of pain responses to repeated stimuli (five stimuli at 2 Hz) were recorded before, during (just before stopping), and subsequently at 20 minutes after TENS. Results: R (III) nociceptive flexion reflex activity during and after TENS was more significantly decreased than before treatment. However, the temporal summation threshold was not changed. Conclusions: We conclude that high frequency, non-noxious TENS could be effective on resting pain relief in the same segment but not on the movement related pain.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.5
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• pp.1119-1124
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• 2008

This study presents the preform injection molding and the blow molding of the injection stretch-blow molding process for PET bottles. The numerical analysis of the injection molding and the blow molding of a preform is considered in this paper using CAE with a view to minimize the warpage and the thickness. In order to determine the design parameters and processing conditions in injection/blow molding, it is very important to establish the numerical model with physical phenomenon. In this study, a three dimensional model has been introduced for the purpose and flow simulations of filling, post-filling and cooling process are carried out. The simulations resulted in the warpage in good agreement with the measurements. Also, from the result of numerical analysis, we appropriately predicted the warpage, deformation and thickness distribution along the product walls.

• Korean Journal of Materials Research
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• v.16 no.9
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• pp.543-549
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• 2006

Polyimides (PI) are treated with $He/O_2$ and $He/O_2/NF_3$ atmospheric pressure rf dielectric barrier discharge in order to investigate the roles of $NF_3$ that is one of the PI etching gases. Surface changes are analyzed by x-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and contact angle measurement. The surface roughness of PI and the ratio of C=O, which is hydrophilic functional group, is more increased by $He/O_2/NF_3$ discharge than by $He/O_2$ discharge. The C=O species on the PI surface is increased up to 30 percent with rf power. The surface roughness of PI is increased from 0.4 to 11 nm with rf power. The water drop contact angles on PI, however, are reduced from $65^{\circ}\;to\;9^{\circ}$ by plasma treatment independently of $NF_3$.