• Journal of the Korean Society of Marine Environment & Safety
• /
• v.25 no.7
• /
• pp.874-880
• /
• 2019

Korea entered the aging society in 2000 and has been officially classified as an aged society as of 2019. As a result thereof, the number of aging seamen and the number of marine accidents of aging crews have consistently increased every year. The aging of drivers, in the relam of road traffic, is the same as those in the field of shipping. However, research and policy-making to solve these problems in the realm of road transportation are more active than in the shipping field. Therefore, this study is aimed at finding education methods for reducing traffic accidents by old aging drivers and determining the benchmark in terms of maritime education. In the area of domestic and foreign road traffic, traffic safety education for older aging drivers is implemented as a way to reduce the causes of human factors in traffic accidents. This study analyzed the current situation of the maritime education field and combined it with the solution in the field of road traffic. First, it is deemed necessary to implement professional license acquisition education. Second, job refresher training for the renewal of the license for aging seamen has to be implemented. Lastly, it is imperative to implement the age transition education for aging seamen. This study, however, is limited to determining the improvement plan for maritime education in relation to aging seamen. Therefore, it is necessary to investigate varying studies in the future.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.25 no.4
• /
• pp.1-6
• /
• 2011

The elder population with 65 years old or more in Korea has been entered into an aging society as 9.1[%] in 2005 to 14.3[%] in 2018. The elder population in 2026 will be expected to 20.8[%] with the rapid aging society. In this study, there has been conducted a study on development of headlamp for elder friendly vehicle in order to ffrom two different groups, one group for elder with over 65 ages, the other group for compared ages(20 ages, 30~50 ages). Glare test and forward visibility test were performed on wet and dry road conditions. As the result of these tests, it showed to prefer headlamp installed partially yellow coated bulb, which gives warm feeling on dry road condition. Forward visibility of headlamp which developed to fit on wet road condition is similar to existing HID headlamp. Glare was evaluated less than halogen and HID headlamp. However, it need to more improve glare and forward visibility performance of headlamp for old drivers.

• The Journal of the Society of Korean Medicine Diagnostics
• /
• v.9 no.1
• /
• pp.59-68
• /
• 2005

Background and purpose: Cardiovascular disease will undoubtedly rise along with the aging of the 'baby-boom' generation. The purpose of this study is to find the new index of the cardiovascular aging. Methods: The effects of aging on the heart and the arterial system are surveyed in the point of structure and function. Results: Arterial stiffening is due to the fatiguing effects of periodic stress on the arterial wall and is the main reason for increasing pulse wave velocity. The systolic hypertension is caused by the early return of wave reflection. The increased after-load by the arterial change leads to the development of left ventricular hypertrophy. The reduction in left ventricular compliance cause the impairments of the diastolic function. In contrast to the lower limb, aging effect in the upper limb are almost due to the ascending aortic pressure wave and the reflected wave from the lower limb. Conclusion: We have the following points. (1) The change of physiological pulse pattern by age can be explained by the early returning of reflected wave. (2) The atrial pulse in old age are generated by the left ventricular hypertrophy.

• Journal of Families and Better Life
• /
• v.21 no.6
• /
• pp.81-95
• /
• 2003

While Korean traditional culture considers it necessary that children support their parents, a new trend of silver support is expanding by the recent social change, the increase of women's working, and the reluctance to support the old people. However, the number of silver welfare facilities in Korea is short for the demand with limited selections of them. Based on the situation, the following results of the study what kind of policies Korea service for the old people in the USA where early stepped into the aging society: 1. provide specific and proper social-supporting service and facilities with charge or free for the old people to be able to select one of them, according to economic, physical and psychological situation of the old people; rather to prepare service and facilities for all the old people. 2. increasing community service support for the home-staying old people 3. the development of support program for the family of the old 4. the improvement of housing environment for the home-staying senior 5. prepare the housing alternatives for the senior would be home-like environment.

• The Korean Journal of Physiology and Pharmacology
• /
• v.10 no.5
• /
• pp.283-287
• /
• 2006

Although estrogen is known to playa role in fatty acid metabolism, it remains unclear whether fatty acid oxidation in mature female rats differs from fatty acid oxidation in peri-pubertal young rats. In this study, we measured fatty acid metabolism in the skeletal muscles and livers of 5 and 50 weeks old male and female rats. The rate of palmitate oxidation in the liver and gastrocnemius red in the 50-week-old female rats were elevated as compared to the 5-week-old females, whereas there were no differences in the male rats. The rate of palmitate oxidation in the gastrocnemius red was correlated inversely with intra-abdominal fat mass in the 5-week-old male and female rats, whereas the palmitate oxidation rate was positively correlated with fat mass in the liver and gastrocnemius red in the 50-week-old rats. HOMA-IR and plasma insulin levels were positively correlated with intra-abdominal fat mass in the pooled 50-week-old male and female rats, but this correlation was not apparent in 5-week-old rats. In summary, the rate of fatty acid oxidation measured in the middle-aged adult female rats was significantly higher than those measured in the peri-pubertal young female rats. This difference may be attributed to the influence of ovarian hormones.

• Journal of Ginseng Research
• /
• v.35 no.3
• /
• pp.272-282
• /
• 2011

Ginseng (Panax ginseng Meyer) has been shown to have anti-aging effects in animal and clinical studies. However, the molecular mechanisms by which ginseng exerts these effects remain unknown. Here, the anti-aging effect of Korean red ginseng (KRG) in rat testes was examined by system biology analysis. KRG water extract prepared in feed pellets was administered orally into 12 month old rats for 4 months, and gene expression in testes was determined by microarray analysis. Microarray analysis identified 33 genes that significantly changed. Compared to the 2 month old young rats, 13 genes (Rps9, Cyp11a1, RT1-A2, LOC365778, Sv2b, RGD1565959, RGD1304748, etc.) were up-regulated and 20 genes (RT1-Db1, Cldn5, Svs5, Degs1, Vdac3, Hbb, LOC684355, Svs5, Tmem97, Orai1, Insl3, LOC497959, etc.) were down-regulated by KRG in the older rats. Ingenuity Pathway Analysis of untreated aged rats versus aged rats treated with KRG showed that the affected most was Cyp11a1, responsible for C21-steroid hormone metabolism, and the top molecular and cellular functions are organ morphology and reproductive system development and function. When genes in young rat were compared with those in the aged rat, sperm capacitation related genes were down-regulated in the old rat. However, when genes in the old rat were compared with those in the old rat treated with KRG, KRG treatment up-regulated C21-steroid hormone metabolism. Taken together, Cyp11a1 expression is decreased in the aged rat, however, it is up-regulated by KRG suggesting that KRG seems enhance testes function via Cyp11a1.

• Journal of Life Science
• /
• v.21 no.3
• /
• pp.400-405
• /
• 2011

Autophagy, a highly conserved mechanism of internal quality control, is essential for the maintenance of cellular homeostasis and for the orchestration of an efficient cellular response to stress. During aging, the efficiency of autophagic degradation declines and intracellular waste products accumulate. Therefore, the aim of this study is to investigate the effects of exercise on autophagic response in skeletal muscle. Twenty-four Young (4 month) and Old (12 month) ICR-type white male mice were divided into a control group (CON: n=6) and exercise training group (Tr: n=6) after an adaptation period of 1 week. Exercise consisted of treadmill running at 16.4 m/min with a 4% incline, 40 min/day and 5 days/week for 8 weeks. Cervical dislocation was performed at 48 hours after the last round of exercise, after which the gastrocnemius skeletal muscle were immediately collected. The results of verifying autophagy formation showed that the Sarcopenia index was decreased in the Old mice compared to the Young. However, it increased with exercise training in the Old. Lipidation LC3-II, Becline-1, and Atg7 were decreased in the Old mice compared to the Young. However, Lipidation LC3-II was significantly increased in the trained Old mice (Young:1 Vs Old:$1.32{\pm}0.042$, p<0.05). Based on these data, we suggest that autophagy regulatory events are the attenuated in Old mice, but that they are enhanced with exercise training.

• Journal of Convergence for Information Technology
• /
• v.11 no.1
• /
• pp.34-44
• /
• 2021

This study aimed to understand the meaning and essence of the experience of bodily change in young-old adults. van Manen's hermeneutic phenomenological method was utilized. Study participants were 11 elderly who 65 to 74 residing in J city. Data were collected from in-depth individual interviews with the participants from July to September 2016. The essential themes were identified regarding the experience of bodily change in young-old adults: 'self-pity about perceived aging', 'myself projected onto others', 'wants to hold on passing of the time', and 'priority on wellbeing than appearance'. The present findings can be used as important basic data for the development of nursing interventions and improving quality of life for young-old adults.

• The Journal of the Korea Contents Association
• /
• v.14 no.10
• /
• pp.137-150
• /
• 2014

This study analyzes the perception of the old age life effects on the preparation for old age plan for veterans who are somewhat isolated from our society in spite of the increasing importance of the old age plan due to the rapid population aging society in Korea. The result of the study shows that meaningful differences in terms of characteristics of sociology of population are rank, level of education, religion, composition of family members in old age life plan in two parts(economic, leisure), whereas only property in physical part has a meaningful difference. That indicates the result was reflected by the character of military. The study on how veterans' perception of the old life affects the old age plan applied two contrasting factors - 'the successful perception of old age life' and 'the perception of expected matters in old age'. That represents those factors(economic, leisure) made positive effects on preparation for old age plan, but not in physical part. 'Expected perception of matters' made regulation effect, but 'success of old age perception' didn't in terms of regulation effect of learning activity as part of the veterans vocational training programs.

• Korean Journal of Veterinary Service
• /
• v.16 no.2
• /
• pp.120-126
• /
• 1993

Clinically healthy 66 female Maniker breed chicken(22 of 2-week-old : group A, 23 of 8-week-old： group B and 21 of 27-week-old： group C) and 66 female Manina breed chicken (21 of 2-week-old : group D, 22 of 8-week-old : group E and 23 of 27-week-old : group F) were examined to establish physiological basic data on serum total Creatine phosphokinase (CPK) activities and CPK isoenzymes fractions. The results obtained were summarized as follows； 1. Serum total CPK activities were $1,088{\pm}254.0\;IU\;/{\ell},$ $1,454{\pm}337.2\;IU\;/{\ell}$ and $1,440{\pm}526.3\;IU\;/{\ell}$ in gorup A, group B and group C of Maniker breed, respectively. Group B and group C showed higher values than that of group A (P<0.01) meaning high values nth aging. 2. Serum total CPK activities were $1,676{\pm}420.5\;IU\;/ {\ell},$ $1,007{\pm}283.1\;IU\;/{\ell}$ and $862{\pm}294.5\;IU/{\ell}$ in group D, group E and group F of Manina breed, respectively. Group D showed the highest value among groups (P<0.01) and Manina breed showed the low values of serum total CPK activities with aging. 3. Manina breed at 2-week-old and Maniker breed at 8-week-old and 27-week-old showed significant high values of total serum CPK activities in breed differance (P<0.01) 4. In the pattern of serum CPK isoenzyme fractions, group A and group B were high with decreasing order of $CK_3>CK_2>CK_1$ and group C was high with decreasing order of $CK_2> CK_3>CK_1$ Groihp D, E and F showed the same pattern with decreasing order of $CK_2>CK_3> CK_1.$ 5. Significance of CPK isoenzymes fractions in breed differance was only found at 8-week-old. $CK_1\;and \;CK_3$ in Maniker breed (P<0.05), and $CK_2$ in Manina breed were higher than that of the other breed (P < 0.01).