• Korean Journal of Food Science and Technology
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• v.42 no.4
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• pp.420-423
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• 2010

The proanthocyanidin fraction was isolated from the wild grape (Vitis amurensis) peel and its antioxidant capacities were examined to promote the utilization of wild grape by-products. The 70% acetone crude extract of the wild grape peel was fractionated with hexane, ethyl acetate, and water. The ethyl acetate fraction was applied to a Sephadex LH-20 column chromatograph, which was eluted with 50% methanol, 75% methanol, and 75% acetone. The proanthocyanidin characteristics and contents of the isolated fractions were investigated by the vanillin-$H_2SO_4$ and BuOH-HCl methods. Fraction 6 had the highest proanthocyanidin content ($49.35{\pm}2.75\;g%$) among the isolated fractions. The antioxidant activities of the proanthocyanidin fraction were examined by DPPH radical scavenging, FRAP assay, and total phenolic contents. The FRAP values and total phenolic contents of the fractions ranged from 3.54 to 32.25 mmol/kg and from 4.48 to 50.80 g/100 g, respectively. The proanthocyanidin contents was strongly correlated with DPPH radical scavenging activities, FRAP values, and total phenolic contents.

• Korean journal of communication and information
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• v.71
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• pp.33-51
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• 2015

In South Korea, the community building projects and so-called 'community businesses' are recently regarded as one of the popular issues for the local people and social activists. The project seems to be a miracle resolution for various social matters such as the deteriorating welfare, health care, security system and the worsening income problem, etc. But these promising social discourses and practices which encourage to build communities are not only constructing 'good governance' for the sound cooperation between the state and civil society, but also allowing government technologies to manage and regulate civil society and citizens. This irony of building community is not yet thoroughly considered. The aim of this article is to ask 'Is building community good for all of people?'; 'How does community guarantee the freedom of people who participate in?'. The reflection for community in South Korean Society has related to The May 18-community in Gwangju. The May 18-community is a keystone for understanding the ethos and pathos of community. This study tries to unravel the relation between the May Uprising and the idea of community throughout affects and hearts of participants. The lived experience and testimony of the people of Gwangju in May, 1980, reveals that community should not be in an order and an notion of security. Examining hearts of members of 'whatever community' in the May Uprising is essential to imagine a new form of community which incorporates liberation and freedom as its base.

• Sleep Medicine and Psychophysiology
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• v.5 no.1
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• pp.111-117
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• 1998

Objectives : 'First-night effect' has been a well-known concept since 1960's. It is important because it is one of the major factors to be considered in assessing the reliability of polysomnographic data. However, 'reverse first-night effect' has also been described, resulting in the inconsistency of conceptualization. We attempted to investigate on the first-night effect in adults by having each of them take two nights of polysomnography in a controlled environment. Young healthy adult volunteers were chosen as subjects in order to rule out age- or health-related confounders. Methods : Polysomnography was performed on eight male medical students (mean $age=23.5\;{\pm}\;0.9$) for two nights with Grass model 78 polysomnograph. We scored manually under the standard protocol each epoch of the sleep records. Sleep variables were obtained and compared between the two nights. Results : Sleep period time(SPT) and total sleep time(TST) of the third fraction of night were significantly longer on the first night than on the second night (p<0.05). However, other sleep variables such as percentage of each sleep stage, sleep latency, REM sleep latency, number of waking, and sleep efficiency were not different between the two nights. Conclusion : We could not confirm the existence of first-night effect in this study. In healthy young male adults, it may not happen at all or may happen to a very negligible degree. Young healthy adults may have more adaptability to a new sleep environment. Also, the provision of a reasonably comfortable sleep environment could have helped them with abolition of first-night effect.

• Applied Biological Chemistry
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• v.39 no.5
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• pp.384-388
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• 1996

This research was conducted to investigate the effective methods for browning inhibition on yam (Dioscorea aimadeimo) during dehydration by physical and chemical pretreatments. Moisture, crude protein, crude fiber and N-free extract contents of yam were 81.17%, 1.43%, 0.29% and 15.81%, respectively. Yams were sliced to 0.5 cm thickness and placed to single and poly layer in plastic tray, and then changes of their weights were measured during air dehydration at $50^{\circ}C,\;65^{\circ}C,\;and\;80^{\circ}C$. The dehydration time reaching to optimum moisture level for the pulverization of the yam slices were 10, 6, 3 hours(single layered) and 12, 7, 5 hours(multi layered) at the respective temperature. To inhibit browning at $80^{\circ}C$ air dehydration, water and steam blanching, microwave treatment effects were investigated on yam slices for 30 sec. and 60 sec. Steam blanching for 30 sec. was comparatively effective to inhibit browning of yam slices. Yam slices were immersed in single and combined browning inhibitor solutions and evaluated for browing degree during dehydration by the values of Hunter L, a, b and ${\Delta}E$. The most effective pretreatment to inhibit browning of yam slices was immersion In the solution containing 500 ppm of citric acid and 1000 ppm of cysteine for 1 min.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.6
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• pp.4040-4047
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• 2015

The purpose of this study was to analyze a change in Post-traumatic Stress Disorder (PTSD) level and the continuity of the effects in music therapy by applying short-term music therapy program in fire fighters with Post-traumatic Stress (PTS). Forty two fire fighters in 3 districts were randomly assigned to experimental group (21 subjects) and control group (21 subjects). Music therapy was applied in totally 10 sessions by two sessions (120 minutes) a day for 5 days. PTS level was measured immediately after the end of program, after 4 weeks, and after 12 weeks. As a result, PTS level has significantly decreased into $8.90{\pm}4.55$ from $26.52{\pm}2.32$ right after the music therapy program(p<0.05). And the effect was shown to be continued significantly up to after 4 weeks($11.95{\pm}4.57$) and after 12 weeks($13.76{\pm}5.62$)(p<0.05). As a result of research, it is considered that the music therapy is effective approach for reduction in PTS as for fire fighters who belong to the group with high risk of PTSD. Accordingly, the application of regular program for managing fire fighters' mental health is understood to likely to contribute to enhancing the field service competence.

• Journal of the Korean Society for Library and Information Science
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• v.52 no.1
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• pp.341-357
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• 2018

Due to the paradigm of open science and advanced digital information technology, data sharing and re-use have been actively conducted and considered data-intensive in a wide variety of disciplines. This study aims to investigate the intellectual structure portrayed by the research products re-using the data sets from ICPSR. For the purpose of this study, a total of 570 research products published in 2017 from the ICPSR site were collected and analyzed in two folds. First, the authors and publications of those research products were analyzed in order to show the trends of research using ICPSR data. Authors tend to be affiliated with university or research institute in the United States. The subject areas of journals are recognized into Social Sciences, Health, and Psychology. In addition, a network with clustering analysis was conducted with using co-word occurrence from the titles of the research products. The results show that there are 12 clusters, mental health, tabocco effect, disorder in school, childhood, and adolescence, sexual risk, child injuries, physical activity, violent behavior, survey, family role, women, problem behavior, gender differences in research areas. The structure portrayed by ICPSR data re-uses demonstrates that substantial number of studies in Medicine have been conducted with a perspective of social sciences.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.632-643
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• 2021

The purpose of this study was to examine how the level of self-compassion of correctional workers influenced depression and the simple and double mediating effects of job stress and job autonomy. Although correctional officers experience high levels of stress and depression, there are limited strategies to protect their job performance. The total of 210 correctional workers in S. Korea were included in the final analysis using SPSS PROCESS Macro model 6. For the analysis, Korean Self-Compassion Scale (K-SCS), Korean occupational stress scale (KOSS), and Center for Epidemiological Studies Depression Scale (CESDS) were used. The results of the study were as follows. First, the correlation analysis showed statistically significant relationships between the variables(p<.01). Second, the simple mediating effect of job autonomy was found in the relationship between the self-compassion and depression as well as the double mediating effect of job stress and job autonomy. The influences of low level of self-compassion on mental health (depression) could be modified by improving the level of work related empowerment (job autonomy) as a protective factor. Based on the results of the study, the further study suggestions and limitations were discussed.

• The Journal of the Korea Contents Association
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• v.22 no.4
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• pp.433-444
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• 2022

This study aimed to identify the change trajectories and clusters of Korean women's family values and depression levels, and the factors affecting depression, to use balanced panel data from the 1st to 7th rounds of the Korea Longitudinal Survey of Women and Families(KLSWF). The subjects of this study were 5,048 female panelists who participated in the KLSWF, and LSTM analysis was conducted using Python to divide the clusters of Korean women suffering from depression. In addition, descriptive statistical analysis, ANOVA, multinomial logistic regression analysis, and hierarchical regression analysis were analyzed using SPSS 23.0. Results, It was confirmed that women's depression increased with age, and family values had a significant impact on depression. It was found that the more open the marriage values of women in the married group, the higher the level of depression. The family values trajectory and depression level of the analyzed subjects were not a single pattern, but included four clusters. To prevent depression among Korean women and provide more concrete interventions, a humanities and sociological system that can identify depression groups should be prepared.

• Journal of Industrial Convergence
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• v.21 no.7
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• pp.93-104
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• 2023

This study was designed to evaluate effects of Patients Empowerment Program for Schizophrenia (PEPS) on Empowerment, Internalized Stigma, Self-esteem, and Quality of Life, in people with chronic schizophrenia living in a rural community. A non-equivalent control group repeated measures design was used. Participants were 22 persons with chronic schizophrenia enrolled from O Province Mental Health Welfare Center, South Korea. (experimental group= 10, control group = 12). The PEPS was administered to the experimental group, consisting of 16 sessions delivered twice a week for 8 weeks. SPSS/WIN 26.0 was used to analyze the collected data using χ²-test, independent t-test, Fisher's exact test, and repeated measures ANOVA. Upon completion of PEPS, the experimental group showed a significantly increased in Self-esteem (F=6.09, p=.005) and Quality of Life (F=3.37, p=.044) as compared to the control group. However, there was no significant difference between the two groups between Empowerment and Internalized Stigma. The results suggest that the PEPS may be an effective intervention for improving Self-esteem and Quality of Life.

• 한국노년학
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• v.31 no.2
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• pp.211-222
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• 2011

The purpose of this study was to assess pain, life satisfaction, sleep pattern, and depression and the relations between these in elderly women with ostearthritis. Methods: The subjects were 124 elderly women with osteoarthritis at senior center in C city. Data were analyzed by descriptive statistics, Pearson's correlation coefficients, and multiple regression with SPSS/WIN 14.0. Results: The major findings of this study were as follows. 1) The mean score of variables were pain 2.58, life satisfaction 65.4, sleep pattern 37.6 and depression 13.58. 2) 43.5% of the subjects belonged to depression group. 3) There were significant relationships between depression and pain, life satisfaction, sleep pattern. 4) Significant factors influencing depression were life satisfaction, pain and sleep pattern. These factors explained 48% of depression in elderly women with ostearthritis. Among them, life satisfaction was the most significant factor. Conclusion: These finding give useful information for constructing an intervention and preventive program depression in the elderly women with osteoarthrtitis.