• Title/Summary/Keyword: AGING

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Analysis of the meaning of 'well-aging' recognized by well-aging experts (웰에이징 강사가 인식하는 '웰에이징' 의미 분석)

  • Kim, Doo-Ree;Park, Yun-Hee;Ahn, Sang-Yoon;Hwang, Hey-Jeong;Kim, Kwang-Hwan
    • Journal of the Korea Convergence Society
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    • v.13 no.5
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    • pp.61-67
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    • 2022
  • This study is a qualitative content analysis study in which one-on-one interview was applied to analyze the meaning of well-aginfor instructors who teach well-aging-related lectures. In this study, five experts were asked the following questions. 'What do you think are the conditions for well-aging?', and 'What do you think is necessary to realize well-aging?'. As a result, 3 core themes and 6 sub-theme were analyzed. The core theme collections were 'life faithful to the basics', 'a balanced life without omissions', and 'life appropriate for age'. The subjects of this study emphasized the integrated harmony of body, mind, society, spirituality, and economy based on health in well-aging. It was emphasized that for well-aging, not only middle-aged people but also all age groups need to recognize and prepare for it. In the future, well-aging education will require a continuous education course tailored to each age group.

Analysis of Binder Aging Levels in Asphalt Mixture Caused by Short-term Aging Conditions Using the GPC Technique (GPC를 이용한 아스팔트 혼합물의 단기노화 조건에 따른 노화도 분석)

  • Kim, Yeongsam;Yun, Jiyeon;Jeong, Seungho;Kim, Kwangwoo
    • International Journal of Highway Engineering
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    • v.18 no.3
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    • pp.1-9
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    • 2016
  • PURPOSES : This study aims to show the difference of the binder aging level in the hot-mix asphalt (HMA) mixture after short-term aging (SA) under different aging conditions, such as mixture temperature and duration in hour. METHODS : Three SA times (i.e., 1 h, 2 h, and 4 h) at two temperatures (i.e., $160^{\circ}C$ and $180^{\circ}C$) were used for the normal mixtures prepared using a PG64-22 asphalt. The field long-term aging (LA) was simulated by applying the same LA procedure (65 h at $110^{\circ}C$) to all compacted specimens, prepared at the air void of 7% using each SA-treated mixture, in a convection oven. The binder aging level was measured in terms of large molecular size by gel-permeation chromatography (GPC) from the mixture and the absolute viscosity (AV) from the recovered binder. The aging levels were evaluated using those two properties after SA and LA, and then compared based on the normal SA (NSA) mixture (1 h at $160^{\circ}C$). The service life reduction caused by SA in various conditions was estimated based on the aging level of the field cores from different locations in various service lives. RESULTS : The results of the laboratory evaluation indicated that the binder of the mixture, which was treated at longer SA time and higher temperature, showed a significantly higher aging level than the NSA mixture. The binder aging level from a longer time, such as 2 h and 4 h SA, or at a higher temperature ($180^{\circ}C$), were estimated to be similar to that of the mixtures, which had already been in field service for several years. CONCLUSIONS : The HMA mixture should be produced at a moderate temperature, such as $160^{\circ}C$, and placed within a limited hauling and queuing time to avoid a significant short-term aging of the binder before placement in the field pavement. The SA for a longer time at a higher temperature than the NSA condition was found to be detrimental to the service life of the asphalt pavement.

A Study of Possibilities on Developing of Traditional Convenience Foods for Anti-aging Control an Analysis of Public Perspectives (노화 제어를 위한 전통 편의식 개발 가능성에 대한 연구)

  • Bok, Hye-Ja;Choi, Soo-Keun
    • Journal of the East Asian Society of Dietary Life
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    • v.18 no.3
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    • pp.322-330
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    • 2008
  • This study was performed to the possibility of developing anti-aging convenient food that is to Koreans' taste. Editor: this abstract appears to describe a study of public opinion and not related to the development of anti-aging convenient foods. In total, The 150 adults, living in Seoul (Korea), participated in this study in the capacity of subjects. Editor: You really have to mention the age-range of the subjects, as senility is an old age disease. In particular, you talk about the intention of subjects (discussed below) to buy anti-aging food products. This would be directly related to their age, as I assume that older people would be more concerned about senility that relatively younger subjects. They were randomly assigned to 25 groups. In result initial descriptive analysis revealed that, 82 percent of subjects awoke to were aware of senility, and the while 26.7 percent were seriously thought of it concerned. Furthermore, The 58.7 percent said that believed food has the possibility has a role in of controlling senility, and the while 64.0 percent said stated that senility may be controlled by eating constitutional foods. Further comparative analysis of In the case of the group of which members subjects have been who were trying to control senility revealed that their, the reliance on food general and constitutional food was significantly higher than those who have not tried to do so did nothing. The From the 61.3 percent have been of subject who were trying to control senility, from among them, the 74.0 percent and the 22.7 percent were relied on physical taking exercises and anti-aging foods, respectively. Likewise, it was ascertained When asked whether subjects intend to purchase anti-aging convenient food if it was is developed. The 67.3 percent and the 72.7 percent indicated their intentionded to purchase the normal product and constitutional products, respectively. Resultantly, anti-aging convenient food was in demand to some extent. Given that anti-aging products are in high demand, In such a case, senile severity (p<0.05), anti-aging possibility in constitutional foods (p<0.001) and anti-aging action (p<0.001) are regarded as variables in the purchase of the normal products. In the case of relation to constitutional products, anti-aging possibility in constitutional food (p<0.001) and anti-aging action (p<0.001) were regarded as variables.

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Target Proteins Involved in Aging Mechanism as an Aging Molecular Marker (노화 분자마커로서 노화기전에 관여하는 타켓 단백질)

  • Kim, Moon-Moo
    • Journal of Life Science
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    • v.26 no.8
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    • pp.983-989
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    • 2016
  • All cells composing of our body undergo their destiny such as proliferation, differentiation, necrosis, apoptosis and senescence depending on their circumstance with time. The errors occurring in these processes develop several aberrations in phenotypes including cancer, inflammation, aging and diseases. New strategy and approach are required to screen anti-aging compounds derived from natural products. Therefore, here we explain the target proteins to play a key role in aging mechanism. In the first place, matrix metalloproteinases (MMPs) are involved in metastasis, chronic inflammation and skin aging as an aging marker. In particular, histone deacetylases (HDACs) give a great attention to aging researchers who try to extend the life span of animal model. In addition, we describe the signaling pathway related to senescence which p53, IGF-1 and SIRT1 play an important role in. Furthermore, autophagy is involved in the signaling pathway associated with aging. Several new compounds modulating the signaling pathway of senescence are introduced in this review. Here, we try to provide a new insight in the molecular basis for the aging mechanism and development of aging marker. In addition, the compounds introduced here could be available for pharmaceutical applications for the prevention and the treatment of diseases related to aging.

Viability Determination of Pinus rigida Seeds Using Artificially Accelerated Aging (노화처리를 이용한 리기다소나무 종자의 활력 평가)

  • Han, Sim-Hee;Koo, Yeong-Bon;Kim, Chan-Soo;Oh, Chang-Young;Song, Jeong-Ho
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.8 no.1
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    • pp.10-14
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    • 2006
  • We tested the seed viability of Pinus rigida using accelerated aging to discover optimum times and temperatures far artificially accelerated aging. Seeds were artificially aged at different temperatures and during different tines. The seed viability was affected by the accelerated aging and by temperature with a decline in germination and seed vigor. The aging index of P. rigida seed was 0.31 at $35^{\circ}C$ and seed viability was nearly lost after aging treatment at $40^{\circ}C$ for 15 days. The optimum temperature of P. rigida far the aging test was decided to be approximately $37^{\circ}C$ on the basis of the aging index. Inorganic materials and conductivity of leaching solution from aging seeds increased with the increase of aging period. The accelerated aging test was considered to be a suitable method to evaluate the seed viability of tree species. Because seed characters are much different among tree species, however, more studies need to be done to discover the optimum conditions for aging by tree species.

Study on Variables Affecting Aging Anxiety: Comparison among Age Groups (노후불안인식 영향요인: 연령집단별 비교)

  • Chung, Soondool;Jeong, Juhi
    • 한국노년학
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    • v.38 no.2
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    • pp.365-383
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    • 2018
  • The purposes of this study were to investigate the perceived level of aging anxiety and the variables affecting the perception of aging anxiety by three different age groups and to find out what alternatives should be socially prepared to lower aging anxiety. We used survey data collected from 1,017 adults who are aged 18 and over and the subjects were divided into three age groups: 18-44 age group, 45-64 age group, over 65 age group. ANOVA and multiple regression analysis were performed to answer the research questions. Major findings of this study were as follows: 1) There was no difference in the perceived level of aging anxiety according to each age group, 2) 'perceived elderly stigma' was found to affect the perceived level of aging anxiety in all age groups, 3) 'perceived maximum age possible to work' was influencing the perceived level of aging anxiety in 18-44 age group and 45-64 age group, 4) 'perception of fairness to the operation of social systems' was a statistically significant variable for the perceived level of aging anxiety in the 45-64 age group and over 65 age group, 5) 'perception of age integration' and 'aging-friendly environment' variables had significant effects on the perceived level of aging anxiety only in over 65 age group. Suggestions for reducing the perceived level of aging anxiety have been proposed.

Effects of annealing temperature on strain-induced martensite and mechanical properties of 304 stainless steel (304 스테인리스 강의 가공유기 마르텐사이트와 기계적 거동에 미치는 온도의 영향)

  • Lee, S.H.;Choi, C.Y.;Nam, W.J.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2008.10a
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    • pp.203-206
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    • 2008
  • Transformation of austenite to martensite during cold rolling has been widely used to strengthen metastable austenitic stainless steel grades. Aging treatment of cold worked metastable austenitic stainless steels, including ${\alpha}'$-martensite phase, results in the further increase of strength, when aging is performed in $200^{\circ}C$ to $450^{\circ}C$ temperature range. The purpose of the present study was to evaluate the effect of time and temperature on the stress-strain behavior of cold worked austenitic stainless steels. The amount of ${\alpha}'$-martensite during cold working and aging was examined by ferrite scope and X-ray diffraction (XRD). During aging at $450^{\circ}C$ for 1hr, tensile strength dramatically increased by 150MPa. Deformed metastable austenitic steels containing the "body-centered" ${\alpha}'$-martensite are strengthened by the diffusion of interstitial solute atoms during aging at low temperature.

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Clinical Manifestation of Aging Voice (노인성 음성의 임상양상)

  • Baek, Min-Kwan;Kim, Dong Young
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.25 no.1
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    • pp.16-19
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    • 2014
  • The presbyphonia is a combination of physiological and structural changes due to aging of the larynx in elderly patients with voice problems. Some of these changes are inevitable, while others may be avoidable or reversible. The fatigue of phonation is the most common clinical symptom of the aging voice. The voice problems with aging are produced from variable causes including the organic lesions of the larynx. It is essential that the curers understand physiologic and pathologic changes of aging voice for minimizing glottal incompetence and improving vocal performance and quality of life of the elderly.

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Correlation between Pungency and Allicin Content of Pickled Garlic during Aging (마늘장아찌 숙성 중 매운맛과 Allicin량과의 상관관계)

  • Kim, Mee-Ree;Yun, Jun-Hwa;Sok, Dai-Eun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.23 no.5
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    • pp.805-810
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    • 1994
  • Relationship between pungency and allicin content of pickled garlic during aging was examined . Degree of pungency of pickled garlic during aging at 20 $^{\circ}C$ was determined by the sensory evaluation. A panel of 10 members evaluated seven samples of pickled garlic which were aged for 0, 10 , 20, 40 , 50 or 60 days by using scoring test (seven point scale). The sensory evaluation results showed that pungency of pickled garlic decreased gradually during aging, and scored at 3.07 on the 40 th day of aging. Content of allicin, which was a major pungent component of garlic homogenate, was quantitatively analyzed by HPLC. The level of allicin in homogenate of pickled garlic was found to decrease gradually, and to 5.9% on the 40 th day of aging compared with that of fresh garlic. Relationship between the pungency score results and the content of allicin demonstrated a highly positive correlation (r=0.9648).

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Influences of Cold Aged Dough on the Quality of Baguette (저온숙성 반죽이 바켓의 품질에 미치는 영향)

  • 황성연;김영만;조대희
    • The Korean Journal of Food And Nutrition
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    • v.11 no.4
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    • pp.369-374
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    • 1998
  • This study was conducted to investiagte influences of cold aged dough on the quality of bagutte. After 2 hours fementing, the dough was divided 2 parts and they were stored in the refrigirated adjusted 1∼-1$^{\circ}C$. The cold aging time was 24, 48 hours respectivley. After 2 hourse fermentation, the dough's pH was 5.45 and 24, 48 hours cold aged dough were 4.99, 4.81. During cold aging, the difference of pH was not significant. The main organic acids in the baguette were lactic acid, acetic acid and malic acid, Among these organic acids, the acetic acid was the largest quantity regardlessly in different fermentation and the cold aging acids, time. Right after baking, the enthalphy of all samples were almost same even thought in different cold aging time, but during different storage periods they showed the difference of retrogradation by the increase of the enthalphy. 24 hours cold aging baguette had the best taste, aroma and texture in bread's score sheet.

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