• Title/Summary/Keyword: 김광환

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Development of bio-fusion materials with skin penetrating property derived from Aurelia aurita (경피 침투율이 높은 보름달 물해파리 유래 바이오 융합 소재 개발)

  • Kim, Hyoung Sik;Seo, Hyo Hyun;Lee, Seo-Hui;Lim, Hyun Jung;Shin, Jeong Won;Kim, Seop Ri;Moh, Sang Hyun;Kim, Kwang-Hwan
    • Journal of the Korea Convergence Society
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    • v.8 no.1
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    • pp.35-42
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    • 2017
  • Previously, we reported LVH peptiede derived from Aurelia aurita as cosmecetuticals with anti-winkle activity. In this study, we synthesized pal-LVH using palmitic acid to enhance skin permeability of LVH and examined the effects as cosmeceuticals of pal-LVH. To evaluate these effects, we performed cell toxicity, wound healing, and patch test for skin irritation with LVH and pal-LVH and compared these results for their effects. As a result. pal-LVH was not showed in cytotoxicity and allergenic effect like as LVH. Besides, pal-LVH had almost same excellent anti-ageing properties in high concentration and anti-winkle effect in low concentrationwas as LVH. These results suggested synthesis of palimitic acid and LVH did not affect any functions as cosmeceuticals with increasing skin permeability. Therefore, pal-LVH can be adaptable as new cosmecetuticals with anti-winkle and anti-ageing materials and applied in the development of medicine through various convergence study.

A study on the experience of daily life and chronic disease management of elderly living alone : Focus group interview (독거노인의 일상생활 및 만성질환관리의 경험: 포커스그룹 인터뷰)

  • Lim, Hyo Nam;Lee, Byunglim;Cha, Tae-Hyun;Kim, Kwang-Hwan
    • Journal of the Korea Convergence Society
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    • v.9 no.4
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    • pp.111-118
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    • 2018
  • This study is a qualitative analysis that conducted a focus group interview to analyze the experiences of daily life of the elderly living alone and their chronic diseases management, and to explore the meaning, nature, and difficulties associated with. The subjects of this study were elder who lives alone without cognitive impairment and over 65-year-old. There were total 31 people and divided into 5 groups and they had 60 minutes interview. By this study, there were four themes of 'difficulties of daily life', 'suffering from chronic diseases', 'fear of the future', 'acceptance of life'. In conclusion, the elderly living alone felt difficulty in daily life due to physical aging and chronic illnesses, and they felt that they were accepting life at the same time while feeling the fear of the future situation. Therefore, in order to improve the life satisfaction and life quality of elderly people living alone, it is necessary to provide institutional devices that enable daily life such as meals and laundry to be maintained and to develop of an intervention program in order to maintain physical health. In addition, an intervention program should be developed to reduce the fear of future uncertainty and positively accommodate the life.

A study on the experience of loneliness in elderly living alone: Focus group interview (독거노인의 심리적 외로움 경험분석: 포커스그룹 면담)

  • Kim, Doo Ree;Kang, Kyung-hee;Lee, Byunglim;Kim, Kwang-Hwan
    • Journal of the Korea Convergence Society
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    • v.9 no.4
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    • pp.85-91
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    • 2018
  • This is a qualitative research that was carried out to analyze the experience of loneliness of the elderly people living alone using the result of focus group interviews. This study conducted interviews with 28 subjects in the Senior Welfare Center of D city. For the purpose, 28 persons were divided into 5 groups, and interviews were carried out with each group for 50-70 minutes. and the voluntary character of research participation was sufficiently explained. As a result of the research, three topic collections consisting of 'Unavoidable lonesomeness', 'Inevitable death', and 'Acceptance of my life' and seven subjects, which consist of 'Absence of spouse', 'Independence for children', 'Death of neighbor (friend)', 'Fear of death left alone', 'Laying down', 'Taking care of my health', and 'Soothing loneliness in my own way', were derived. The elderly persons living alone who participated in this research expressed their feeling of unavoidable loneliness and their effort to overcome the loneliness. Based on the findings of this research, it is hoped that diverse plans to overcome psychological loneliness of the elderly people living alone will be developed.

A Convergence study on the happiness and participating desire of economic activity among elderly living alone (독거노인의 행복과 경제활동의 참여욕구에 대한 융합 연구)

  • Lee, Byunglim;Kim, Doo Ree;Lim, Hyo Nam;Kim, Kwang-Hwan
    • Journal of the Korea Convergence Society
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    • v.9 no.8
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    • pp.109-116
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    • 2018
  • The study focuses on the relationship between the desire for economic activity and happiness among the elderly living alone. Qualitative research was conducted as a research method. Research participants were either go to the elderly community wellness center or volunteer at the center. The results were: First, it turned out that enjoying different programs and socializing with others at the community wellness center and the health of family were the factors of happiness to the elderly living alone. Second, the difference on the desire on economic activity among the elderly living alone was significant. Three groups could be categorized: the elderly who wants economic income through jobs, others who were wealthy, and others who do not struggle with their finance but wanted to continue their economic activity through part-time jobs. In average, the desire for economic activity was high but they wanted 2 - 3 hours of labor per day, considering their physical condition. In case of income, there were two groups, who desperately wants more income, and others who feel their income is sufficient. This study suggested a virtuous cycle of government support policies to the elderly living alone in economic and psychological perspectives.

A Study on Clinical Characteristics of Patients with Mild Cognitive Impairment at Convalescent Hospitals (요양병원에 내원한 경도인지장애환자의 진료특성에 관한 연구)

  • Kim, Youn-Jeong;Kim, Doo Ree;Kim, Kwang-Hwan
    • Journal of the Korea Convergence Society
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    • v.9 no.8
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    • pp.77-85
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    • 2018
  • Dementia among the diseases occurring in the old age is recognized as a disease to be solved at the national level and systematic management is being carried out. However, the awareness and response of the mild cognitive disorder, which is the middle stage of normal aging and dementia, are insufficient and social costs are increasing every year. The subjects of the study were 303 hospitalized patients whose primary diagnosis was mild cognitive impairment (F067) in a nursing hospital located in one district in 2016. The number of days of hospitalization was shorter in autumn and longer in winter or in hospital discharge. The cost of treatment for patients with mild cognitive impairment is lower in autumn and higher in winter or in 'discharge' of medical treatment results. The total cost of medical treatment was high in the winter by season in the ADL 6-12 and ADL 13-20 groups. Difference in the cost of medical treatment according to the characteristics of medical treatment, the medical expenses were the highest when the number of corporal disease was 5 ~ 8. In the medical treatment results, the ADL 6-12 point group and the ADL 13-20 point group had high medical expenses in 'continue'. Considering the clinical characteristics of mild cognitive impairment and considering that 10-15% of the patients with mild cognitive impairment progress to dementia every year, early detection and treatment of mild cognitive impairment is an effective and potentially important task for reducing potential social and dementia patients.

Selection and Characterization of Horticultural Traits of Tomato leaf curl virus (TYLCV)-resistant Tomato Cultivars (토마토 황화잎말림바이러스(TYLCV) 저항성 품종 선발 및 원예특성 분석)

  • Kim, Woo-Il;Kim, Kwang-Hwan;Kim, Young-Bong;Lee, Heung-Su;Shon, Gil-Man;Park, Young-Hoon
    • Horticultural Science & Technology
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    • v.31 no.3
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    • pp.328-336
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    • 2013
  • This study was conducted to evaluate imported tomato $F_1$ cultivars as breeding materials for the resistance to Tomato yellow leaf curl virus (TYLCV) by molecular markers and bioassay. From marker genotyping and disease evaluation of 40 $F_1$ cultivars, most of the cultivars declared as TYLCV-resistance carried heterozygous marker genotype for the TYLCV resistance genes Ty-1, Ty-3, or Ty-3a, and showed low disease rates. Whereas, 4 of 5 $F_1$ cultivars declared as intermediate resistance showed marker genotype for susceptibility and disease rates ranged 18.1-33.3%. However, the xx cultivars showed inconsistency in marker genotype and disease rate. Characterization of horticultural traits of the $F_1$ cultivars with TYLCV-resistance indicated that large-size fruit cultivars were higher in yield and similar in sugar contents and solid-acid ratio compared to a control cultivar preferred in the domestic market, although hardness remained to be a problem. On the other hand, cherry tomato cultivars showed lower yield and brix, but longer internode compared to a control cultivar, indicating that breeding for TYLCV-resistance using these cultivars will require more efforts and time compared to large-sized.

National hospital discharge survey for the hospitals with fewer than 100 beds: A pilot project and evaluation (100병상미만 의료기관대상 퇴원환자조사 시범운영 및 평가)

  • Choi, Haeng-Jeong;Kim, Kwang-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.9
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    • pp.3336-3340
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    • 2010
  • This study has been carried out against hospitals with less than 100 beds, which were excluded from the previous study on the discharged patients from January 1 to December 31, 2007. To analyze the discharged patients, the general characteristics of discharged patients, means of payment for medical costs, type of disease and surgery and current status of the use of medical services have been investigated based on the medical records. During the year of 2007, the number of discharged patients from the hospitals with less than 100 beds reached 4,697,095 (9.7% of total population). In other words, 9,693 people were discharged from a hospital per 100,000 populations with 9.8 days in terms of annual mean length of hospitalization. The number of patients who returned home after hospitalization reached 4,538,861 (male: 1,784,041, female: 2,754,821) while 119,378 patients were evacuated to other hospitals. Among them, 8,970 patients were returned back to the original hospital. Based on the results of this study, they could be used in could be used in planning a project which is aimed to reduce public health costs by investigating high-risk groups with particular injuries and preventing damage. In addition, the injury monitoring data which are continuously collected could be useful in monitoring and evaluating the efficiency of an injury prevention program.

A Study on the Characteristics of the Patient Group in a Convalescent Hospital Inpatients: Based on the Medical Record Information (일개 요양병원 입원환자의 환자분류군 특성에 관한 연구 : 의무기록 정보를 바탕으로)

  • Lim, Bo-Ra;Ahn, Sang-Yoon;Kim, Kwang-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.11
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    • pp.324-334
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    • 2019
  • This study investigates the characteristics of patients hospitalized at a convalescent hospital, by considering patient groups based on their medical record information. It further analyzes and correlates the factors, thus providing basic data required to improve the patient classification system at convalescent hospitals. The data includes total information of 213 medical records of patients discharged from a convalescent hospital in the Jeonbuk region during a period of one year, from January to December 2016. The study examines and correlates the days of hospitalization and the number of diseases, revealing a positive correlation having a correlation coefficient, thereby indicating that infliction with a greater number of diseases results in longer hospitalization. Based on these findings, the study raises the need to revise and supplement items on the patient assessment report to help determine the patient groups and identify medical efforts to be actually provided to patients. In addition, a proper care service system for each patient group based on their respective problems that are intensively managed according to the patient groups will be an essential element in the efficient management of convalescent hospitals. Furthermore, an important task addressed will be in managing the health of the elderly population at the national level.

The Quality of Sleep and Its Relating Factors in Firefighting Officers (일부 남성 소방직공무원의 수면의 질 및 그의 관련요인)

  • Choi, Jee-Hyeon;Kim, Kwang-Hwan;Cho, Young-Chae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.5
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    • pp.451-458
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    • 2018
  • This study was conducted to determine the association between quality of sleep (QOL) and the general characteristics, the health-behavioral factors, and the occupational characteristics of firefighting officers. The survey was conducted in October 2016 with a self-administered questionnaire using the Pittsburgh Sleep Quality Index (PSQI) developed by Pittsburgh University, targeting 600 male firefighting officers working at five fire stations in D city. As a result, the QOL of the study subjects measured by the PSQI revealed 13.2% to be good, and 86.8% to be poor. In relation to general characteristics and health habits, the rate of the group who had poor quality sleep was significantly higher in those with a lower subjective health status, in the non-smoking group, and in the low sleep-quality group, compared to the good sleep-quality group. For occupational characteristics, the rate of those with poor quality sleep was significantly higher in groups such as the fire suppression group, the shift work group, the hard physical labor group, the group with a lower sense of satisfaction in their work, and in the group classed as unfit for the job but who were not considering quitting their jobs, compared to their respective counterparts. Multiple regression analysis revealed factors of influence with explanatory powers of 24.4% for subjective health status, alcohol use, subjective quality of sleep, career, job position, and physical labor. The results of this study suggest that the quality of sleep for firefighting officers is significantly related to general characteristics, health-behavioral characteristics, and occupational characteristics.

A Study on the Interest in Hospice According to the Perception of Happiness (행복 인식에 따른 호스피스 준비의 관심에 관한 연구)

  • Chang, Kyung-Hee;Lee, Seo-Hui;Kim, Kwang-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.5
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    • pp.489-498
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    • 2018
  • The purpose of this study is to examine whether there is a difference in the awareness of death based on happiness (since attitude or way of life differs among the general public, depending on the perception of death), and to investigate whether there is a difference in the interest in hospices between a group with a high happiness index and a group with a low happiness index. A survey was conducted on 200 men and women aged over 20 who participated in a walking event held in a metropolitan city on April 22, 2017. The survey consisted of eight demographic items: gender, age, education, occupation, marital status, family cohabitation, religion, and health status. It included 29 questions regarding happiness and nine questions regarding the perception of death. For the statistical tests, a chi-square test, an independent sample t-test, correlation analysis, and canonical correlation analysis were performed on the items of the survey based on a happiness index. The results of the study showed that, for a suitable place for death, medical institutions was the highest score (46.3%) for the group with a low happiness index, and own house was highest (59.4%) for the group with a high happiness index. This was a significant difference. It is thought that management systems should be supplemented by professional manpower, educating people so as to increase the utilization rates of home-based hospice as a way for patients to die in a comfortable and familiar place because, for Korea, death is much more common in hospitals. It is also necessary to increase the awareness of death and to make effective use of hospices through individual and various other approaches, considering the demographics of the subjects.