• Title/Summary/Keyword: Epidemic aspects

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Markovian Model Analysis of Influenza System (인플루엔자 유행의 마르코프 모델 해석)

  • 정형환;김권수
    • The Transactions of the Korean Institute of Electrical Engineers
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    • v.33 no.11
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    • pp.440-446
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    • 1984
  • This thesis investigates the quantitative aspect of epidemic phenomena utilizing the analytical method of discrete time systems based on the theory of Markov processes. In particular, the pattern on the epidemic character of Influenza was analyzed by the mathematical model of Influenza system, which is derived according to the ecologic relationship between five epidemiolgic states of individuals. The quantitative aspects of the model was characterized by digital computer simulations. The main results were obtained as follows: 1) A Markovian model of influenza system represents accurate spead curve. 2) The latent period of influenza has the standard deviation of 1.98 and also the incubation period is 2.68. 3) If the value of susceptibilities in the pre-epidemic period is less than 20% of the population, the epidemic will occur sporadically. 4) The initial value of susceptibilties obtained by this markov theory is less about 10% of total population than the obtained value according to the deterministic model.

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A Study on the Composition of Shanghanluntiaobian(傷寒論條辨) (방유집(方有執)의 『상한론조변(傷寒論條辨)』 조문(條文) 구성에 대한 고찰(考察))

  • Ahn, Jin-hee;Kim, Hye-il;Jeong, Chang-hyun;Jang, Woo-chang;Baik, You-sang
    • Journal of Korean Medical classics
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    • v.29 no.1
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    • pp.1-15
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    • 2016
  • Objectives : The purpose of this study is to investigate the method of setting up logic and estimate Fang Youzhi's work through Shanghanluntiaobian. Methods : Wang Shuhe's old edition Shanghanlun and Fang Youzhi's Shanghanluntiaobian were compared and several essential provisions were analyzed and addressed the positive and negative aspects of Fang Youzhi's revising old edition Shanghanlun mixed bamboo tablets. Results : Fang Youzhi's changing Bianmaifa("辨脈法") and Pingmaifa("平脈法") and placement Bianchishiyemaizhengbingzhi chapter after Liujingbingmaizhengbingzhi for discriminating convulsion dampness summer heat stroke from febrile diseases is appropriate. Fang Youzhi's deletion Shanghanli("傷寒例") chapter that has a guiding characteristics shows his editorial policy. Fang Youzhi's addition Bianwenbingfengwenzabingmaizhengbingzhi chapter is for discriminating febrile disease from epidemic febrile disease wind warmth syndrome miscellaneous disease and it indicates Shanghanlun is a book of treatment after differentiation of syndromes containing epidemic febrile disease and miscellaneous disease. Through Fang Youzhi's revising method I can see several positive aspects. First he tried to refine the logic of the content of Shanghanlun and accord with an actual situation. Second he shows Shanghanlun is a book of treatment after differentiation of syndromes containing epidemic febrile disease and miscellaneous disease and tried to see Shanghanlun clearly. A criticism of the Preserving Old Edition Shanghanlun group could interrupt flexibility and creative thinking reading Shanghanlun and a criticism to the Sangangdingli Principles of the several exegetists is a productive criticism because medicine treats human being so it cannot be completed by a logic. Conclusions : All of these processes are Fang Youzhi's endeavour for strengthening the system and logicality of the old edition Shanghanlun and it is meaningful to show a method to read Shanghanlun to beginners.

Research on Application of SIR-based Prediction Model According to the Progress of COVID-19 (코로나-19 진행에 따른 SIR 기반 예측모형적용 연구)

  • Hoon Kim;Sang Sup Cho;Dong Woo Chae
    • Journal of Information Technology Applications and Management
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    • v.31 no.1
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    • pp.1-9
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    • 2024
  • Predicting the spread of COVID-19 remains a challenge due to the complexity of the disease and its evolving nature. This study presents an integrated approach using the classic SIR model for infectious diseases, enhanced by the chemical master equation (CME). We employ a Monte Carlo method (SSA) to solve the model, revealing unique aspects of the SARS-CoV-2 virus transmission. The study, a first of its kind in Korea, adopts a step-by-step and complementary approach to model prediction. It starts by analyzing the epidemic's trajectory at local government levels using both basic and stochastic SIR models. These models capture the impact of public health policies on the epidemic's dynamics. Further, the study extends its scope from a single-infected individual model to a more comprehensive model that accounts for multiple infections using the jump SIR prediction model. The practical application of this approach involves applying these layered and complementary SIR models to forecast the course of the COVID-19 epidemic in small to medium-sized local governments, particularly in Gangnam-gu, Seoul. The results from these models are then compared and analyzed.

A Study on the Characteristics of Tuberculosis Control System Using Markov Processes (마르코프 과정을 이용한 결핵 관리 특성에 관한 연구)

  • Chong, Hyeng-Hwan;Joo, Soo-Won;Kim, Hae-Jae
    • Journal of Biomedical Engineering Research
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    • v.9 no.2
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    • pp.159-164
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    • 1988
  • This thesis investigates the Quantitative aspect of epidemic phenomena utilizing the analytical method of discrete time systeMs based on the theory of Markov processes. In particular, the pattern on the epidemic character of turberculosis controlled by prophylaxis and BCG vaccinatioll was analyzed by the markovian model of tuberculosis system which is derived according to the ecologic relationship between nine epidemiologic states of individuals. The quantitative aspects of the model were characterized by digital computer simulations.

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Implementation of Open Source SOLAP Decision-Making System for Livestock Epidemic Surveillance and Prevention (Open Source SOLAP기반의 가축전염병 예찰 및 방역 의사결정 지원시스템 구현)

  • Kyung, Min-Ju;Yom, Jae-Hong
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.30 no.3
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    • pp.287-294
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    • 2012
  • The spread of infectious diseases in the event of livestock is getting faster and the route of spread gets more varied. It is important for the responsible agency to detect early and establish a prevention and surveillance system. If the spread cannot be contained effectively, great damage and loss will be inevitable in terms of social, environment and economic aspects as well as the welfare of the farmers. At present in Korea, a web-based Infectious Livestock Diseases Statistics System (AIMS: Animal Infectious Disease Data Management System) has been already implemented for this purpose and the service is available to the general public. But this system does not provide geospatial information and does not provide support for decision making and does not provide multi-dimensional information. In this study, an open source-based SOLAP (Spatial On-Line Analytical Processing) technology is applied to enable many diverse forms of data analysis from many aspects to support decision making. The SOLAP system was designed to integrate geospatial information and the analysis of information has been largely divided into map-based analysis and table-based analysis.

Epidemic form of creative background and Joseon Dynasty of Hanlim another song (<한림별곡(翰林別曲)>의 창작(創作) 배경(背景)과 조선시대(朝鮮時代) <한림별곡(翰林別曲)>의 유행(流行))

  • Kwon, Hyok Myong
    • (The)Study of the Eastern Classic
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    • no.57
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    • pp.437-466
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    • 2014
  • This paper, is in the focus of the fact that was popular in the Joseon Dynasty, was clearly private background and fashionable aspects of its creation. In Section 2, as the background of the epidemic of of the Joseon Dynasty, and was derived creative situation of . is the "left Order live music" relationship center rather, was that it was created by the Academy belongs is highlighted "Hanlin year". As a result, collapses the relationship between the order raw Korea early left, in conjunction with the boast to debauchery and evaluated surface Shinyoung of successor Geibun of this academy, be epidemic in the Joseon Dynasty it is the could be. In Chapter 3, and two to the original, it was examined the epidemic surface of of the Joseon Dynasty. The epidemic of surface, in the conventional research and are relatively detailed, but in this paper, while accommodating the existing research results, of consideration "Hanlim feast" has led to Geibun of Korea "immune new Feast" was observed a trend surface is placed around the fact. As a result, , the Joseon is that it has been singing on the occasion official four-kan and Geibun center, first Nara are exempt new feast bonds back to the four Hall again in Geibun, usually it can be seen that it is spread in the Scholar-official and gisaeng's. Lower limit has been singing can be up to around the late 17th century it has been speculated through the time of Gimumanjun.

A study on Samchobyeonjeung(三焦辨證) of "OnByeongJoByeon(溫病條辨)" ("온병조변(溫病條辨)"의 삼초변증(三焦辨證)에 대한 고찰)

  • Kim, Sang-Hyun;Baik, You-Sang;Jeong, Chang-Hyun;Jang, Woo-Chang
    • Journal of Korean Medical classics
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    • v.24 no.2
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    • pp.81-100
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    • 2011
  • Byeon Jeung[辨證], which is to differentiate symptoms is a process of assessing the patient's condition. And like any other differentiation system, a ceratin pathological perspective is embedded. In Onbyeonghak(溫病學), new Byeon Jeung systems were designed to complement the insufficient, existing perspectives on acute epidemic febrile diseases. Oguktong(吳鞠通)'s Samchobyeonjeung(三焦辨證) is one of these newly designed systems. Though the meaning of Samchobyeonjeung varies among Onbyeong(溫病) researchers, they stand on common grounds of differentiating damp-heat disease[濕熱病]. However, Oguktong(吳鞠通) clearly demonstrated this system on epidemic febrile diseases. Researchers have acknowledged the importance of Oguktong(吳鞠通)'s approach, but thorough analysis of the subject has been insufficient. In this study, I have primarily studied the meaning of Samchobyeonjeung by analyzing "Onbyeongjobyeon(溫病條辨)", followed by assessment of negative and positive aspects.

Knowledge, Attitudes and Perceived Vulnerability to AIDS of Medical and Nursing Students (의학계열 대학생의 에이즈에 대한 지식, 태도 및 취약성 인지정도)

  • Sung, Mi-Hae
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.15 no.2
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    • pp.221-228
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    • 2008
  • Purpose: The purpose of this study Is to identify the knowledge, attitudes and perceived vulnerability to AIDS of medical and nursing students. Method: The subject of this study were 324 medical and nursing students in Busan area. Data was analyzed by using descriptive statistics, t-test, ANOVA, Pearson correlation coefficient, and Scheffe's test. Result: Total knowledge of AIDS was average. Total attitudes of AIDS was above average. And perceived vulnerability of AIDS was above average. According to the results of analyzing the difference between general characteristics of the subject and AIDS related knowledge, attitudes and perceived vulnerability, a significant difference was present with grade in knowledge score; with sex, grade, department, and health status in attitudes score, with sex, religion, grade, department, education experience to AIDS, and health status in perceived vulnerability to AIDS, There was a significant relationship between attitudes and perceived vulnerability to AIDS. Conclusion: The research findings show that the educational program for preventing AIDS must take into consideration knowledge and epidemic and non-epidemic aspects of AIDS and preventive attitudes toward AIDS, And, it also proves that it is necessary to devise an AIDS educational program for college students.

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Traditional Korean medicine theory based-therapeutic potential of Gung-Gwi-Tang on postpartum obesity: psychosocial aspects of postpartum obesity

  • Kim, Jeong-Hwa;Moon, Phil-Dong
    • CELLMED
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    • v.2 no.3
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    • pp.24.1-24.5
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    • 2012
  • Obesity is psychological and socioeconomic problems as well as health problems related to physical disease and disorder. The obesity epidemic, including a marked increase in the prevalence of obesity among pregnant women, represents a critical public health problem throughout the world. Gung-Gui-Tang (GGT), a prescription of traditional Korean medicine, has been used to treat dizziness due to loss of blood as well as static blood after childbirth. However, the therapeutic potential of GGT on postpartum obesity has not been fully elucidated in an experimental model. In our research, GGT inhibited the increases of body weight and adipose tissues in postpartum mice fed a high-fat diet. GGT also inhibited the elevations of plasma lipid profiles such as triglyceride, low-density lipoprotein cholesterol, total cholesterol, and glutamate pyruvate transaminase. Overall, these results provide evidence that GGT can help to inhibit postpartum obesity and open new perspective to recover the shape of mother into the moment of conception.

Analysis of the Development of Cross-border E-commerce in China's Manufacturing Industry

  • Huang, Shuqi;Ock, Young Seok
    • Asian Journal of Innovation and Policy
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    • v.11 no.2
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    • pp.238-257
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    • 2022
  • As the global epidemic continues to worsen, the pressure on the supply chain is also increasing. In this context, Internet shopping has ushered in new development opportunities. Under the influence of globalization, the development of cross-border e-commerce (CB-EC) is particularly remarkable. As China is a big manufacturing country, the growth of CB-EC is a significant opportunity for Chinese goods to enter the international market. Therefore, this paper comprehensively analyzes the current situation of the integrated development of China's manufacturing industry and CB-EC from four aspects: the operation mode, development mode, policy environment, and development prospect of CB-EC in China's manufacturing sector. This paper constructs an evaluation system including 19 secondary indicators to rank the CB-EC development environment of 30 provinces in China that have established comprehensive pilot zones of CB-EC.