• Title/Summary/Keyword: Epidemic

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A Case of Exacerbated Pulmonary Tuberculosis after Contracting Measles (홍역 이환으로 악화된 폐결핵 1례)

  • Lee, Yong Soon;Lee, Soo Jin;Yoo, Young;Kim, Shin Na
    • Pediatric Infection and Vaccine
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    • v.8 no.2
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    • pp.229-233
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    • 2001
  • The incidence of complications of measles is about 4% and most of the chief complications are in the respiratory system, such as pneumonia, bronchitis. One of other potential dangers of measles is exacerbation of an existing pulmonary tuberculosis. We report a case of exacerbated pulmonary tuberculosis in 15-year old male child after contracting measles during epidemic in year 2001.

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Mini-review; Melamine-related Urinary Stone Disease (Mini-review: 멜라민에 의한 신요로계 결석)

  • Kang, Hee-Gyung
    • Childhood Kidney Diseases
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    • v.13 no.1
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    • pp.21-25
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    • 2009
  • Last year, an epidemic of infantile urinary stone disease developed in China. Investigation revealed that melamine-tainted diary product caused urinary stone in these infants. Young infants were susceptible to the melamine toxicity and dehydration or other stone-prone factors aggravated the toxicity. Melamine-related urinary stones were small, multiple, and mainly composed of uric acid, thus conservative treatment of hydration and urine alkalinization worked well in majority of the patients.

First Record on the Exotic Lace Bug of Asteraceae, Corythucha marmorata Uhler (Hemiptera: Tingidae) in Korea (국화과 식물의 외래해충 국화방패벌레(국명신칭), Corythucha marmorata Uhler (Hemiptera: Tingidae)의 한국 내 신 분포 기록)

  • Yoon, Chun-Sik;Kim, Hyoung-Gon;Choi, Won-Young;Cheong, Seon-Woo
    • Journal of Environmental Science International
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    • v.22 no.12
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    • pp.1611-1614
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    • 2013
  • Corythucha marmorata Uhler was newly recorded in Korea as a invasive species at Pohang-si, Gyeongsangbuk-do, Korea in 2011 and at Changwon-si, Gyeongsangnam-do, Korea in 2012. Adults of this species show reticular forewings with a lot of transparent membranes and also show pterigoid process of paranotum with strong processes. This invasive species was originated from North America, and then intruded into Europe and Japan. This species is presumed became an epidemic horticultural pest at present and it is injuring almost of Asteraceae leaves. It was presumed that the invasion of Corythucha marmorata into Korea was prior to September of 2011.

A NONSTANDARD FINITE DIFFERENCE METHOD APPLIED TO A MATHEMATICAL CHOLERA MODEL

  • Liao, Shu;Yang, Weiming
    • Bulletin of the Korean Mathematical Society
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    • v.54 no.6
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    • pp.1893-1912
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    • 2017
  • In this paper, we aim to construct a nonstandard finite difference (NSFD) scheme to solve numerically a mathematical model for cholera epidemic dynamics. We first show that if the basic reproduction number is less than unity, the disease-free equilibrium (DFE) is locally asymptotically stable. Moreover, we mainly establish the global stability analysis of the DFE and endemic equilibrium by using suitable Lyapunov functionals regardless of the time step size. Finally, numerical simulations with different time step sizes and initial conditions are carried out and comparisons are made with other well-known methods to illustrate the main theoretical results.

A Study on the Jangseoksun(張錫純)'s "Sanghanrongang-ui(傷寒論講義)" (장석순(張錫純)의 "상한론강의(傷寒論講義)" 연구)

  • Jang, Woo-Chang
    • Journal of Korean Medical classics
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    • v.22 no.2
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    • pp.349-362
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    • 2009
  • Jangseoksun(張錫純), a noted doctor of China in the early 20th century, has influenced the establishment of Contemporary Chinese Medicine greatly. , which is an accumulation of Jang's lectures and publications, contains the essence of his medical spirit to fuse his theory and experience of Traditional Medicine and the newly imported Western Medicine knowledge of his time. is especially important, presenting the core of Jang's academic theory. In this book he gives full play of his unique experience of treating the Eum(陰, Yin) Deficiency Syndrome which is presented as excess in the upper and deficiency in the lower[上盛下虛]. He also shows the importance of merging theory and practice, the pliability to collaborate the Sanghan(傷寒, Damage from Cold) theory and Onbyeong(溫病, Epidemic Febrile Disease) theory and the study of the blended affect of external and internal pathogens.

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Renal and Renovascular Hypertension in Children (소아의 신성 고혈압)

  • Hahn, Hye-Won
    • Childhood Kidney Diseases
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    • v.15 no.1
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    • pp.1-13
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    • 2011
  • Hypertension is a major risk factor of atherosclerosis which results in cardiovascular disease, and remains a major health problem worldwide. While children are more likely to have secondary hypertension, recent studies support the theory that the prevalence of essential hypertension in children and adolescents is increasing with the global epidemic of childhood obesity, and close attention is needed. Evaluation of hypertension in the pediatric age group should be guided by the age at presentation, and renal diseases must be considered in every child with hypertension, because of the prevalence of renovascular and renal parenchymal disorders as the etiology in any age group. The majority of children with chronic kidney disease are hypertensive, and many have associated end organ damage. Thus, once hypertension has been confirmed, end organ care as well as pharmacologic therapy must be continued. In renovascular hypertension, as cure could be gained with surgical/endovascular intervention, accurate diagnosis is important and it is recommended that every suspected child should undergo angiography.

On an Epidemic Model in a Closed Stratified Population (밀폐된 계층인구에 있어서 유행병 모델)

  • Jeong, Hyeong-Hwan;Ju, Su-Won;Lee, Gwang-U
    • Journal of Biomedical Engineering Research
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    • v.14 no.4
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    • pp.365-370
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    • 1993
  • Of the assumptions commonly used in continuous infection model, the least likely to be even approximately true in large population, is that of homogeneous mixing. In this paper, We investigate a model for the spread of infection amongst a population which is divided into classes, such that the individuals of each class mix homogeneously amongst themselves, but mix to a lesser degree with individuals of other class. The stochastic model in this form is intractable and approximations are made, yielding results in reasonable agreement with simulation trials.

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A Direction Entropy-Based Forwarding Scheme in an Opportunistic Network

  • Jeon, MinSeok;Kim, Sun-Kyum;Yoon, Ji-Hyeun;Lee, JunYeop;Yang, Sung-Bong
    • Journal of Computing Science and Engineering
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    • v.8 no.3
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    • pp.173-179
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    • 2014
  • In an opportunistic network, one of the most challenging issues is the equilibrium of the network traffic and transmission delay for forwarding messages. To resolve this problem, we propose a new forwarding scheme, called the direction entropy-based forwarding scheme (DEFS), using the main direction and direction entropy based on the information collected about the directions of the nodes in the network. Since each node sends a message to another node with a different location and less direction entropy, DEFS utilizes those nodes that are more likely to travel to various locations to forward the messages to the destination nodes. Experiments were performed on the network simulator NS-2. The results show that DEFS provides better balance than the typical forwarding schemes, such as Epidemic, PRoPHET, and WAIT.

Fish and Prion Diseases (프리온 질환과 어류의 관련성에 관한 연구 동향)

  • Kim, Jae-Il
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.47 no.4
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    • pp.341-346
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    • 2014
  • Transmissible spongiform encephalopathies (TSEs), also termed prion diseases, are a threat to food safety and to human and animal health. Variant Creutzfeldt-Jakob disease (vCJD) in humans is caused by the consumption of meat contaminated with bovine spongiform encephalopathy (BSE, mad cow disease). The BSE epidemic in the United Kingdom was shown to be related with the extensive use of BSE-contaminated meat-and-bone meal (MBM) and bovine offal. Many countries worldwide use MBM, as well as meat from cows, for aquaculture feed. This raises concerns about the safety of farmed fish, a major protein source for humans. The present work reviews recent studies on fish prion protein and the transmissibility of mammalian prion agents to fish, providing insights into the future direction of fish prion research.

Nutritional management of breastfeeding infants for the prevention of common nutrient deficiencies and excesses

  • Moon, Jin-Soo
    • Clinical and Experimental Pediatrics
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    • v.54 no.7
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    • pp.282-286
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    • 2011
  • Breastfeeding is the best source of nutrition for every infant, and exclusive breastfeeding for 6 months is usually optimal in the common clinical situation. However, inappropriate complementary feeding could lead to a nutrient-deficient status, such as iron deficiency anemia, vitamin D deficiency, and growth faltering. The recent epidemic outbreak of obesity in Korean children emphasizes the need for us to control children's daily sedentary life style and their intakes of high caloric foods in order to prevent obesity. Recent assessment of breastfeeding in Korea has shown that the rate is between 63% and 89%; thus, up-to-dated evidence-based nutritional management of breastfeeding infants to prevent common nutrient deficiencies or excesses should be taught to all clinicians and health care providers.