• Journal of Korean Public Health Nursing
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• v.27 no.1
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• pp.129-141
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• 2013

Purpose: This study examine the relationships retirement plans, perception of successful aging and attitude toward retirement nurses. Methods: The subjects of this study 200 nurses at two hospitals in C City. The data collection period from Nov. 1 to Dec. 31, 2011. Results: The degree of retirement significant according to age, marital status, education level, dependent, duration of employment, shift, department, annual salary. he degree of economic retirement plan showed significant differences according to age, marital status, education level, dependent home, duration of employment, department, annual salary. he degree of physical retirement plan showed statistically significant differences according to age, marital status, dependent, department. The degree of emotional retirement plan showed significant differences according to age, department. Conclusion: mprove the retirement of clinical nurse, we need a systematic based on physical and mental health.

• Bulletin of the Korean Chemical Society
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• v.21 no.6
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• pp.628-634
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• 2000

Crosslink is the most important chemistry in a rubber vulcanizate. Degree and type of crosslinks of the vulcanizate determine its physical properties. Change of crosslink density and deformation of a rubber vulcanizate by thermal aging were studied using natural rubber (NR) vulcanizates with various cure systems (conventional, semi-EV, and EV) and different cure times (under-, optimum-, and overture). All the NR vulcanizates were deformed by the thermal aging at 60-100 $^{\circ}C.$ The higher the aging temperature is, the more degree of the deformation is. The undercured NR vulcanizates after the thermal aging were deformed more than the optimumand overcured ones. The NR vulcanizates with the EV cure system were less deformed than those with the conventional and semi-EV cure systems. The deformation of the NR vulcanizates was found to be due to change of the crosslink density of the vulcanizates. The crosslink densities of all the vulcanizates after the extraction of organic materials were also changed by the thermal ging. The sources to change the crosslink densities of the vulcanizates by the thermal aging were found to be dissociation of the existing sulfur crosslink and the formation of new crosslinks by free sulfur, reaction products of curing agents, and pendent sulfide groups.

• Korean Journal of Culture and Social Issue
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• v.19 no.3
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• pp.435-456
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• 2013

This study examined the factors influencing aging anxiety among college students. 336 college students from universities in Seoul and Gyeonggi-Do were participated in the survey. Regression analyses confirmed that variables influencing 4 dimensions of aging anxiety are different. Quality of contact and attitude toward elderly predicted 'Fear of Old People' dimension. As for 'Psychological Concerns', death anxiety, attitude toward elderly and Quality of contact were influencing factors. Death anxiety, Quality of contact and sex was significant factors predicting. 'Physical/Appearance anxiety'. As for Fear of Losses, Death anxiety and attitude toward elderly affect. On the whole college students' aging anxiety tended to increase as having lower death anxiety, positive quality of contact, positive attitude towards elderly. And female has higher Physical/ Appearance anxiety than male. whereas results have not found a correlation between either knowledge of aging and frequency of contact with aging anxiety. Discussion focuses on the importance of the findings, limitations and future directions.

• Journal of Home Health Care Nursing
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• v.25 no.3
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• pp.173-181
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• 2018

Purpose: This study examined the effects of physical fitness and aging anxiety on life satisfaction among the elderly. Methods: The participants were 119 elderly. Data collection was conducted from July 1 to 10, 2018. Data were analyzed using descriptive statistics, t-tests, ANOVA, Pearson's correlation coefficients, and multiple linear regression analysis with SPSS software. Results: The mean life satisfaction score was 4.10. Life satisfaction differed significantly according to several general characteristics: education level (p=.014), income (p<.001), living with partner (p=.041), perceived health status (p<.001), and number of chronic diseases (p<.001). Statistically significant positive relationships were observed between life satisfaction with muscle strength (r=.20) and, flexibility (r=.21), and a negative relationship was observed with aging anxiety (r=-.66). A total of 60.0% of life satisfaction was explained by income, perceived health status, muscle strength, flexibility, and aging anxiety. Conclusion: These results can be used to develop life sports programs to improve physical, social, and emotional health promotion with consideration for support to alleviate economic burden. Effect of life sports are evident as a way for healthy and energetic elderly. It should not be a simple exercise program but an integrated plan for improving physical, mental, and social health of the elderly.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.43 no.3
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• pp.73-79
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• 2011

The annals of Joseon Dynasty is one of the UNESCO's Memory of the World Register. For the safety preservation of wax applied volumes of the annals of Joseon Dynasty, the aging behavior of beeswax and beeswaxed Hanji with $CO_2$, $O_3$, $SO_2$ and $NO_2$ gas has been evaluated. The weight loss of beeswaxed Hanji after aging under ozone gas were increased because of strong acidity of ozone. The acid value and relative intensity of carbonyl groups in beeswax were stabilized with aging time. The physical strength of dewaxed Hanji after ozone aging were rapidly decreased by aging time. The crystallinity of dewaxed Hanji were stabilized at all aging times.

• Journal of Korean Public Health Nursing
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• v.29 no.3
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• pp.426-440
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• 2015

Purpose: This qualitative study aimed to understand older adults' perspectives on successful aging and develop a model of a successful aging process, within the Korean socio-cultural context. Methods: This study used a Grounded Theory approach. Through theoretical sampling, 14 participants were selected from older adults at a public health center and a volunteer institution in Gyeonggi Province, South Korea. Results: The basic social process identified was "expanding the aging self", which was preceded by three phases, namely, adjusting to the changes, developing the valuable self, and embracing the environment. Participants used 2-3 strategies for successful aging in each phase. For adjusting to the changes, participants used strategies such as "adopting a positive attitude", "accepting the changes", and "being at the center of life". To develop the valuable self, "re-identifying capacities", "having something to do", and "advancing to a healthy lifestyle" were used. Participants embraced their environments with "sharing with others" and "embracing younger generations". The causal condition for expanding the aging self was the changes in participants' physical, mental, or psychosocial situations. Conclusion: These findings suggest a theoretical foundation for the development of potential nursing interventions to promote self-care management and the interpersonal relationship for successful aging among Korean elderly individuals.

• BMB Reports
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• v.52 no.1
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• pp.13-23
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• 2019

Aging is accompanied by a time-dependent progressive deterioration of multiple factors of the cellular system. The past several decades have witnessed major leaps in our understanding of the biological mechanisms of aging using dietary, genetic, pharmacological, and physical interventions. Metabolic processes, including nutrient sensing pathways and mitochondrial function, have emerged as prominent regulators of aging. Mitochondria have been considered to play a key role largely due to their production of reactive oxygen species (ROS), resulting in DNA damage that accumulates over time and ultimately causes cellular failure. This theory, known as the mitochondrial free radical theory of aging (MFRTA), was favored by the aging field, but increasing inconsistent evidence has led to criticism and rejection of this idea. However, MFRTA should not be hastily rejected in its entirety because we now understand that ROS is not simply an undesired toxic metabolic byproduct, but also an important signaling molecule that is vital to cellular fitness. Notably, mitochondrial function, a term traditionally referred to bioenergetics and apoptosis, has since expanded considerably. It encompasses numerous other key biological processes, including the following: (i) complex metabolic processes, (ii) intracellular and endocrine signaling/communication, and (iii) immunity/inflammation. Here, we will discuss shortcomings of previous concepts regarding mitochondria in aging and their emerging roles based on recent advances. We will also discuss how the mitochondrial genome integrates with major theories on the evolution of aging.

• Journal of Life Science
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• v.28 no.5
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• pp.621-626
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• 2018

We introduced the physiological responses of aging, active aging and also suggest the impact of physical exercise on body health status and elderly immunity. In this purpose, we searched the Pub Med data base for the articles (include our experimental papers) and review papers having the terms 'Aging', 'Active aging' and 'Physical activity and elderly' in the title, published from 1999 until 2018. The results were as follows: Exercise training has been extensively studied about the reduction of inflammation, oxidative stress, disease, and aging in syndrome X patients and elderly. Combined and aerobic or resistance exercise training could reduce obesity, insulin resistance, type 2 diabetes and hypertension. Exercise training has been extensively studied in cancer settings as part of prevention or treatment strategies. From this research, regular exercise has the potential to target tumor growth through regulation of inflammation and immune responses such as lactate clearance, NK cell activation (innate immunity), activation of cytotoxic immune cells, T cell activation (adaptive immunity), and immune surveillance. However, Endurance physical activity not only induces thermogenesis and diverse sports injuries but also elicits mobilization and functional enhancement of monocytes, neutrophils (which is caused by the cytokine changes such as TNF-alpha, IL-1) whereas it suppresses cell mediated immunity causing to increased susceptibility to inflammation and infections like cough and URTIs (upper respiratory track infections) in young and especially in elderly people. Therefore, Strategies to prevent physical fatigue, sports injuries include avoid overtraining, Adequate recovery and various type of rest during and after physical activity and assuring adequate nutrition supplementation such as glutamine, vitamin B, vitamin C, carbohydrate, ion or berry-contain sports beverages is helpful in physically active elderly.

• Journal of the Korean housing association
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• v.28 no.1
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• pp.55-62
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• 2017

As fast-speed of aging in modern society has led to increased concern for aging and health improvement of senior citizens, desire about having healthy living-environment has also increased. Living space for senior citizens has to play role of healing for their body feature as well as decrease in mental and psychological function. Color, as important factor that supplements degenerated sense and coping ability caused by aging, it has been revealed through modern medical science that color is effective for making nervous or calming down when it is delivered to one's nerve through sight. The purpose of this study is to suggest basic resource for color arrangement palette of living space and application method by color therapy to improve seniors' mental health by considering psychological and physical features caused by aging. First, consider psychological and physical feature of seniors and color therapy effect through previous research. Second, extract RGB value after selecting color that is helpful for their mental health by using palette from 'Korea Agency for Technology and Standards'. Third, extract other 3 colors that are similar with extracted color from 'NCS 1950 Color System'. Fourth, deduct palette of 3 color arrangement by using 'NCS Navigator' program. Lastly, extract arrangement palette for them by considering difference in visual features, and then suggest arrangement application for each palette through Computer Simulation.

• Journal of Preventive Medicine and Public Health
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• v.46 no.sup1
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• pp.50-54
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• 2013

Out-of-home mobility is necessary for accessing commodities, making use of neighborhood facilities, and participation in meaningful social, cultural, and physical activities. Mobility also promotes healthy aging as it relates to the basic human need of physical movement. Mobility is typically assessed either with standardized performance-based tests or with self-reports of perceived difficulty in carrying out specific mobility tasks. Mobility declines with increasing age, and the most complex and demanding tasks are affected first. Sometimes people cope with declining functional capacity by making changes in their way or frequency of doing these tasks, thus avoiding facing manifest difficulties. From the physiological point of view, walking is an integrated result of the functioning of the musculoskeletal, cardio-respiratory, sensory and neural systems. Studies have shown that interventions aiming to increase muscle strength will also improve mobility. Physical activity counseling, an educational intervention aiming to increase physical activity, may also prevent mobility decline among older people. Sensory deficits, such as poor vision and hearing may increase the risk of mobility decline. Consequently, rehabilitation of sensory functions may prevent falls and decline in mobility. To promote mobility, it is not enough to target only individuals because environmental barriers to mobility may also accelerate mobility decline among older people. Communities need to promote the accessibility of physical environments while also trying to minimize negative or stereotypic attitudes toward the physical activity of older people.