• 제목/요약/키워드: Epidemic aspects

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

  • 정형환;김권수
    • 대한전기학회논문지
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    • 제33권11호
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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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방유집(方有執)의 『상한론조변(傷寒論條辨)』 조문(條文) 구성에 대한 고찰(考察) (A Study on the Composition of Shanghanluntiaobian(傷寒論條辨))

  • 안진희;김혜일;정창현;장우창;백유상
    • 대한한의학원전학회지
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    • 제29권1호
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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.

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

  • 김훈;조상섭;채동우
    • Journal of Information Technology Applications and Management
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    • 제31권1호
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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.

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

  • 정형환;주수원;김해재
    • 대한의용생체공학회:의공학회지
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    • 제9권2호
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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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Open Source SOLAP기반의 가축전염병 예찰 및 방역 의사결정 지원시스템 구현 (Implementation of Open Source SOLAP Decision-Making System for Livestock Epidemic Surveillance and Prevention)

  • 경민주;염재홍
    • 한국측량학회지
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    • 제30권3호
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    • pp.287-294
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    • 2012
  • 가축전염병 중 하나인 구제역의 경우 정보의 초동 대응 미흡 등으로 전국적으로 확산되는 피해를 초래하였다. 이를 해결하기 위해 국가에서는 가축이력에 대한 체계적인 관리를 마련하기 위하여 데이터를 구축하였으며, 2002년도부터 추진되어 현재 웹 기반의 가축전염병 발생 통계 시스템(AIMS)이 운영하고 있다. 이는 사용자가 원하는 기간에 해당 축종의 형태에 따른 질병을 선택하면 지역별로 가축전염병 발생 통계 현황이 텍스트 기반으로 제공하고 있다. 하지만 이 같은 경우 시각적으로 공간적인 위치정보를 즉각적으로 파악할 수 없기 때문에 정보를 효과적으로 전달하기 어렵고, 의사결정을 내리고자 할 때 사용자가 원하는 정보를 다차원적으로 지원하지 못하는 한계가 있다. 이 연구에서는 오픈소스 기반의 SOLAP(Spatial On-Line Analytical Processing) 기술을 적용하여 여러 형태의 데이터를 다각적인 방법으로 분석하고, 최종적으로 나온 결과를 공간정보와 통합하여 지도상에 시각적으로 전달되도록 표현하였다.

<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) (Epidemic form of creative background and Joseon Dynasty of Hanlim another song)

  • 권혁명
    • 동양고전연구
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    • 제57호
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    • pp.437-466
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    • 2014
  • 본고는 <한림별곡(翰林別曲)>이 조선시대에 유행한 사실을 초점으로 하여 조선시대 <한림별곡>의 유행 배경으로서 고려시대 <한림별곡>의 창작상황을 도출하고, 이를 토대로 조선시대 유행한 <한림별곡>의 구체적인 양상을 살펴보는 데 목적을 두었다. 2장에서는 조선시대 <한림별곡>의 유행 배경으로서 <한림별곡>의 창작 상황을 도출하였다. 그 결과, <한림별곡>은 관계중심의 '좌주문생연'이 아니라 소속 집단이 강조된 '한림연'에서 창작되었다고 할 수 있었다. 그런 까닭에, 조선 초기 좌주문생관계가 무너지고 '긍호방탕(矜豪放蕩)'하다는 평가를 받은 <한림별곡>이 '한림연'을 계승한 예문관의 '면신연'을 통해서 조선후기까지 유행할 수 있었던 것이다. 3장에서는 2장을 토대로 조선시대 <한림별곡>의 유행 양상을 살펴보았다. 본고는 기존 연구 성과를 수용하되, 2장과의 유기적인 맥락 하에서 살펴보았다. 즉, 조선시대 <한림별곡>의 유행은 두 가지 양상을 띠는데, 하나는 군주나 국가적 문제와 관련하여 예문관(藝文館), 사관(四館)의 공식적 자리에서 유행하였고, 다른 하나는 <한림별곡>이 예문관의 면신연과 결합하자 전자보다 사적인 성격을 띤 공간에서 가창되었다는 것이다. 예문관의 면신연과 결합한 <한림별곡>은 조선 전기 허참례 면신례의 성행과 비례하여 유행하였고, 면신연을 금지하는 구체적인 절목이 만들어진 중종 36년부터는 점점 위축된 것으로 추정된다. 이후 <한림별곡>은 예문관(藝文館)이나 사관(四館)에서의 가창은 약화되고 일반 사대부나 지방 관리의 주연(酒筵) 공간, 기방(妓房) 등을 중심으로 유행한 것으로 추정된다. 조선후기 <한림별곡>의 유행은 김만중의 시를 통해서 볼 때 17세기 후반까지 확인된다.

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

  • 김상현;백유상;정창현;장우창
    • 대한한의학원전학회지
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    • 제24권2호
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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.

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

  • 성미혜
    • 기본간호학회지
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    • 제15권2호
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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
    • 셀메드
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    • 제2권3호
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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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    • 제11권2호
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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.