• 한국전기전자재료학회논문지
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• 제33권6호
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• pp.495-499
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• 2020

Power factor improvement at high temperatures has been a major research topic for the development of skutterudite thermoelectric materials. Here, we attempted to optimize the process parameters for manufacturing skutterudite materials, especially for p-type systems. We focused on the effect of aging time variation to maximize the high-temperature performance of the Ce-filled Fe³CoSb¹² skutterudite system. The optimized aging time was concluded to be a key parameter for the formation of single-phase nanostructures in this p-type skutterudite system. The optimized condition was effective in reducing the bipolar effect at high temperature ranges by increasing the carrier concentration in the p-type system. To confirm the conclusions, the electrical conductivity, Seebeck coefficient, and power factor were measured. The results matched well with the microstructure and with those of an XRD analysis performed for the system.

• 성인간호학회지
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• 제27권5호
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• pp.594-603
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• 2015

Purpose: The purpose of this study was to examine the effects of health promotion program on healthy aging preparation for late middle aged women. Methods: The research design was a non-equivalent control group quasi-experimental study. Participants were recruited from K and Y cities in Gyeong-nam Province from October, 2013 to January, 2014. They were 26 for the experimental group and 31 for the control group. The experimental group participated in a health promotion program for healthy aging preparation. The program consisted of education, exercise, and small group discussion over 8 weeks. Data were analyzed by Chi-square, t-test and ANCOVA, using the PASW 18.0 program. Results: There were significant improvements in aging anxiety and general self-efficacy, health promoting behaviors in the experimental group compared to those of the control group. However, there was no significant differences in attitude toward older adults between the two groups. Conclusion: The health promotion program on healthy aging preparation for late middle aged women was found to be effective in enhancing aging anxiety and self-efficacy, and health promoting behavior. Thus, the developed program is recommended for use in clinical practice as an effective nursing intervention for late middle aged women in order to keep up with their health in later life.

• 대한간호학회지
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• 제43권2호
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• pp.176-184
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• 2013

Purpose: The purpose of this study was to investigate expectations regarding aging by middle-aged women in the community, and identify factors contributing to their expectations about aging. Methods: Participants in the survey for this study were 303 middle-aged women from community health centers and religious facilities in Seoul, Gyeonggi Province, and Chungcheongbuk Province. Data were collected from March 2 to April 17, 2012 using self-report structured questionnaires. The instruments were the Health Perceptions, Rosenberg Self-esteem Scale (RSES), Family APGAR, Expectations Regarding Aging (ERA-12). The data were analyzed using t-test, one-way ANOVA, Scheffe test, Pearson correlation coefficients and hierarchical multiple regression with IBM SPSS/WIN 20.0 program. Results: Perceived health status (${\beta}$=0.16, p=.009) and self-esteem (${\beta}$=0.20, p=.001) of middle-aged women were identified as significant predictors of expectations regarding aging, after adjusting for age, education, occupation, monthly income and menstrual status. Conclusion: These results suggest that nurses should make an effort to improve expectations about aging among middle-aged women. Ultimately, community health programs for middle aged women need to be developed to achieve successful aging.

• 한국노년학
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• 제38권2호
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• pp.309-327
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• 2018

본 연구의 목적은 중 노년의 노화불안에 미치는 변인들을 통합적으로 살펴보기 위하여 2007년 2월부터 2017년 3월까지 국내에서 보고된 34편의 연구에 대한 메타분석을 실시하였다. 노화불안 관련 변인들을 6개의 변인군으로 나누고 각각 변인군에 대하여 하위변인별로 효과크기를 산출하였으며 결과는 다음과 같다. 첫째, 전체효과크기는 중간효과크기를 보였고, 변인군에 따른 효과크기는 부정심리적변인군이 가장 높게 나타났으며, 긍정심리적변인군, 사회적변인군, 신체적변인군, 가족적변인군, 인구통계적변인군의 순으로 나타났다. 둘째, 하위변인들 중에서는 심리적 안녕감, 죽음불안의 효과크기가 가장 높게 나타났다. 상기와 같이 노화불안과 관련된 변인들 중 심리적변인군에 속한 심리적 안녕감과 죽음불안의 효과크기가 높게 나타남에 따라 이러한 변인들이 노화불안 중재에 영향력이 클 수 있음을 시사하였다.

• 대한간호학회지
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• 제38권6호
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• pp.831-842
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• 2008

Purpose: The purpose of this study was to develop a web-based senescence preparation education program to promote successful aging. Methods: This program was developed based on Network-Based Instructional System Design (NBISD) model, using the following 5 processes: analysis, design, development, implementation, and evaluation. The program was operated for 10 weeks from March 17 to May 25, 2008. Results: There were 4 menu bars, introduction, related data, lecture room, and communication on the main page. In the operation of this program, HTML, ASP, JAVA Script, Namo web editor, Edit Plus, Front Page and multimedia technology were applied. The program content consisted of understanding elderly people, physical health, activity & exercise, nutrition, medication use, psychological health, intellectual health, understanding death, welfare system and leisure activity. Conclusion: This program could be a useful means to provide senescence preparation information to middle-aged adults. Also, it is expected to offer individualized learning opportunities to many learners in various settings. Nurses should further develop and facilitate various learning strategies including web-based programs for elder care.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제16권1호
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• pp.55-63
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• 2010

The study was initially designed to look into the soon-to-be senior citizens' preferences for the life after retirement in aging society. Its outcomes are to be contributed to grading up the quality of housing culture through examining the expected changes of housing types in the future. The increasing number of the soon-to-be senior citizens becomes leading subjects in information, culture and consumption areas. Therefore it is significant to present a model of housing types for those citizens by analyzing their preferred residence after retirement. To complete those objectives, a set of questionnaires concerning sex, age, district, education and income of those subjects in 40's-50's, who are expected to be more than 20 percent of national population by 2030, were collected and analyzed to find out their preferences over housing types, residential welfare facilities, and co-housing. The results show that the preferences over the residential welfare facilities and co-housing for those who are able to move for themselves are low, while the preferences over single-unit houses in the suburbs within 2 hours from a city are very high. Preferences for apartments in the urban areas are high for those with high income and education. In contrast preferences for life in their hometowns are high for those whose income and education are relatively low. Most of those with some difficulties in moving for themselves want to get help with welfare facilities for the elderly people. And the preferences of those who want to receive help from assistants are different from those preferring to get help from their offsprings, which tells a need for further study of the convertible housing types according to their family members.

• 디지털융복합연구
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• 제19권5호
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• pp.321-331
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• 2021

본 연구는 웰에이징을 위한 웰다잉 교육과 웰다잉 문화확산, 산업화를 구축하는 데 필요한 기초 자료를 얻고자 2021년 2월 1일~2021년 2월 22일까지 한국갤럽을 통해 자료를 수집하였다. 연구결과 조사 대상자의 웰다잉 교육경험은 4.7%이었고 교육만족도는 2.88점으로 나타났다. 연령층별 웰다잉 교육 요구도 분석 결과 청년과 중년층은 호스피스 교육 및 정보, 연명의료 관련 정보, 장례정보 순이었고, 장년층은 호스피스 교육 및 정보, 장례 정보, 죽음 관련 심리적 극복 순이었으며, 노년층은 호스피스 교육 및 관련 정보, 장례 정보, 연명의료 관련 정보 순서로 조사되었다. 웰다잉 문화 관련 산업화 인식은 삶과 죽음에 대해 이야기할 수 있는 웰다잉 카페, 입관체험, 장지 방문과 같은 웰다잉 체험, 문화와 예술 관련 여행상품 개발 순서로 조사되었다(p<0.05). 이와 같은 결과는 웰에이징을 위한 웰다잉 교육 프로그램 개발과 문화확산 및 산업화 구축에 유용하게 활용될 수 있을 것으로 기대된다.

• 수산해양교육연구
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• 제27권4호
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• pp.924-937
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• 2015

The purpose of this study was to identify the effect of resistance training intensity levels on muscle damaged index and aging-related hormones in obese middle-aged women. Thirty middle-aged women having over 30% of body fat participated in this study. The subjects were assigned into 3 groups on the basis of workout intensity, 50% intensity, 60% intensity, and 70% intensity. After performing three different types of exercise for 12 weeks, the levels of creatine kinase (CK), lactate dehydrogenase (LDH), melatonin, dehydroepiandrosterone-sulphate (DHEA-S), and growth hormone (GH) in all subjects were assessed before and after the program. Muscle damaged index was effectively changed in low exercise intensity group. However, aging-related hormones were effectively changed in high exercise intensity group. DHEA-S and GH were significantly increased in the 70% intensity group than the other groups.

• 한국엔터테인먼트산업학회논문지
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• 제13권2호
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• pp.169-176
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• 2019

본 연구는 노인복지시설 이용자의 인구학적 특성에 따른 노화에 대한 태도와 우울에 미치는 영향을 알아보고자 하였다. 이를 위해 경기도 소재의 15곳의 기관에 280명의 시설이용 노인을 대상으로 하여 설문을 실시하였으며, 최종적으로 258명의 자료를 분석에 사용하였다. 측정도구는 노화에 대한 태도 척도, 치료자의 태도 척도, 우울의 척도를 사용하였다. 본 연구의 결과는 다음과 같다. 첫째, 성별에 따른 노인복지시설 이용자의 노화에 대한 태도, 우울에 차이가 없는 것으로 나타났다. 둘째, 최종학력에 따른 노인복지시설 이용자의 노화에 대한 태도, 우울에서는 최종학력이 높을수록 긍정적인 노화에 대한 태도와 우울을 나타냈다. 셋째, 노인복지시설 이용경험에 따른 노화에 대한 태도, 우울에서는 이용 경험이 있는 많은 노인들이 노화에 대한 신체적 변화에서 긍정적인 유의미한 차이가 나타났다. 따라서 연구결과 노화에 대한 태도가 부정적이어서 꼭 우울하다고 판단할 수는 없으나 최종학력에서는 높은 관련성이 있음을 알 수 있었다. 노인복지시설에서 근무하는 치료자들은 노인들을 치료, 케어함에 있어 최종학력이 낮을수록, 이용했던 시설의 수가 적을수록 노화에 대한 태도가 부정적일 수 있고 이는 곧 우울감을 높일 수 있는 요인이 될 수도 있음을 알아야 할 것이다.

• Journal of Ginseng Research
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• 제44권2호
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• pp.222-228
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• 2020

Background: 20(S)-ginsenoside-Rg3 (C₄₂H₇₂O₁₃), a natural triterpenoid saponin, is extracted from red ginseng. The increasing use of 20(S)-ginsenoside Rg3 has raised product safety concerns. Methods: In acute toxicity, 20(S)-ginsenoside Rg3 was singly and orally administrated to Kunming mice and Sprague-Dawley (SD) rats at the maximum doses of 1600 mg/kg and 800 mg/kg, respectively. In the 26-week toxicity study, we used repeated oral administration of 20(S)-ginsenoside Rg3 in SD rats over 26 weeks at doses of 0, 20, 60, or 180 mg/kg. Moreover, a 4-week recovery period was scheduled to observe the persistence, delayed occurrence, and reversibility of toxic effects. Results: The result of acute toxicity shows that oral administration of 20(S)-ginsenoside Rg3 to mice and rats did not induce mortality or toxicity up to 1600 and 800 mg/kg, respectively. During a 26-week administration period and a 4-week withdrawal period (recovery period), there were no significant differences in clinical signs, body weight, food consumption, urinalysis parameters, biochemical and hematological values, or histopathological findings. Conclusion: The mean oral lethal dose (LD₅₀) of 20(S)-ginsenoside Rg3, in acute toxicity, is above 1600 mg/kg and 800 mg/kg in mice and rats, respectively. In a repeated-dose 26-week oral toxicity study, the no-observed-adverse-effect level for female and male SD rats was 180 mg/kg.