• Title/Summary/Keyword: 전염

Search Result 1,002, Processing Time 0.033 seconds

닭의 산란능력을 저해하는 각종질병

  • 이영옥
    • KOREAN POULTRY JOURNAL
    • /
    • v.18 no.7 s.201
    • /
    • pp.91-96
    • /
    • 1986
  • 닭의 산란능력에 영향을 미치는 요인들을 개괄하였으며 특히 바이러스성 질병에 대하여 논의하였다. 전염성질병은 예측할 수 없는 상황에서 발생하므로 질병의 발생을 방지할 수 있는 모든 방법들이 사전에 강구되어야만 한다. 최근들어 전염성기관염이 전국적으로 확산됨에 따라 채란계농가나 종계농가의 피해가 날로 높아가리라 사료되며, 우리 모두의 지혜를 모아 어려움을 슬기롭게 풀어가야 하리라 믿는다

  • PDF

메디컬 리포트 - 내 몸 보호막 예방접종 미리 준비하면 효과 만점

  • Lee, Jin-Seong
    • 건강소식
    • /
    • v.38 no.9
    • /
    • pp.38-39
    • /
    • 2014
  • 백신 예방접종의 발전은 인류 역사상 가장 위대한 업적 중 하나로 꼽힌다. 18세기 초반만 해도 몸에 난 작은 상처나 호흡기 전염으로 두창(전연두를 한방에서 이르는 말), 페스트 등이 전염돼 수십만명이 사망하는 경우가 허다했다. 이러한 감염병 및 풍토병에서 인류를 지킨 것이 백신 예방접종이다.

  • PDF

Studies on the Soil Transmission of CGMMV and Its Control with Crop Rotation (오이녹반모자이크바이러스의 토양전염 생태 및 윤작에 의한 방제)

  • Park, Jin-Woo;Jang, Tae-Ho;Song, Sung-Ho;Choi, Hong-Soo;Ko, Sug-Ju
    • The Korean Journal of Pesticide Science
    • /
    • v.14 no.4
    • /
    • pp.473-477
    • /
    • 2010
  • Cucumber green mottle mosaic virus (CGMMV) is one of major plant viruses infecting cucurbitaceous crops via soil or infected seeds. This study investigate ecology of infection of CGMMV in soil, and control tactics of this virus with soil hygiene and crop rotation. This virus was survival to 50% in soil without host plants for 17 months and had high vitality in debris of infected plant over 1 year. Infection rate of CGMMV was 1.0~3.6% in control soil and 12~36% in soil transplanted with wounded root of watermelon. It showed that wounded root may affect severity of soil infection. Rotation between rice and watermelon caused dramatical reduction from 76.8% in repeated cultivation to 7.3% of progeny infection by CGMMV. Therefore, it is suggested that crop rotation be effective for control of CGMMV.

Identification of Bean Common Mosaic Virus Obtained from Seeds of Phaseolus vulgaris (강낭콩에서 종자전염된 Bean Common Mosaic Virus의 분류동정에 관한 연구)

  • Choi Y.M.;Lee S.H.;Park J.S.;Kim J.S.
    • Korean journal of applied entomology
    • /
    • v.23 no.1 s.58
    • /
    • pp.15-21
    • /
    • 1984
  • The virus infecting French bean (Phaseolus vulgaris L.) was identified as Bean Common Mosaic Virus(BCMV) based on the host range, symptomatology, serology, morphology of virus particles and inclusion bodies. Isolates of BCMV were obtained from seeds of P. vulgaris collected at Suweon, Jangsu and Jinju in Korea. French bean produced vein clearing, mosaic, stunting and leaf curling. Symptom of Chenopodium quinoa was local lesions on the inoculated leaves, not on the upper leaves. The electron micrograph of the virus from French bean was flexuous approximately 750nm in length. Cylindrical and pinwheel cytoplasmic inclusion bodies were observed in French bean leaf infected by BCMV. BCMV from the French bean was transmitted through seed and green peach aphid, Myzus persicae. The thermal inactivation point was $55\~60^{\circ}C$, dilution end point was $10^{-3}\~10^{-5}$ and longevity in vitro was $2\~3$ days for BCMV from French bean. The isolates of BCMV reacted positively against BCMV antiserum. The extract of BCMV infected bean leaves, Azukibean mosaic virus (AZMV) and Cowpea aphid borne mosaic virus(CaMV) also reacted with BCMV antiserum, however, BCMV and CaMV showed the spur in agar gel diffusion test.

  • PDF

The Measurement of Femoral Neck Anteversion by 3D Modeling of Femoral Major Axes (대퇴골 주요축의 3차원 모델링에 의한 전염각의 측정)

  • Kim, Jun-Sik;Kim, Seon-Il
    • Journal of Biomedical Engineering Research
    • /
    • v.19 no.4
    • /
    • pp.341-350
    • /
    • 1998
  • The accurate measurement of the femoral anteversion is important for the derotational osteotomy. To estimate femoral anteversion, following three major parameters are required; the neck axis, the long axis, and the knee axis. Conventional methods on the basis of 2D images are ambiguous to determine these major axes. As the femur has a complex 3 dimensional structure, the 3 dimensional model should be applied for accurate and reliable measurement of femoral anteversion. In this thesis, we model femur and define three parameters. The neck axis is defined from the femoral head and neck model. The long axis is determined from the cylindrical model of the femoral shaft. The knee axis is also determined from the model of femoral condyles. According to the definition of the femoral anteversion, the femoral anteversion is efficiently estimated from these models. 20 specimens were tested by the conventional 2D imaging method and 3D imaging method witch was developed by authors and the new 3D modeling method. The study provides accurate, fast and human factor free measurement for femoral anteversion.

  • PDF

The Effect of Pre-chlorination on the Coagulation of Microcystis aeruginosa (전염소처리가 Microcystis aeruginosa 응집에 미치는 영향)

  • Lee, Tae-Gwan;Jin, Jung-Sook
    • Journal of Korean Society of Environmental Engineers
    • /
    • v.22 no.3
    • /
    • pp.505-510
    • /
    • 2000
  • In this study the effects of pre-chlorination on the coagulation of water which contain Microcystis aeruginosa. were investigated on the laboratory scale. We prepared the sample of $10^5cell/mL$ Microcystis aeruginosa and then applied 0.2, 1.0, 10 mg-Cl/L chlorine on the sample After reaction period(1 minute and 1 hour), each sample was coagulated. As a result, after 0.4 mg-Al/L coagulant dose, turbidities of all samples were below 2 mg-Kaolin/L. Turbidity was not affected by chlorine dose. As the dose of chlorine was increased, the residual aluminum was decreased, but result of $UV_{254}$ was adverse.

  • PDF

Pro-inflammatory Cytokine Production Inhibitory Effects of Frankincence in Murine Macrophage (마우스의 대식세포에서 프랑킨센스의 염증성 사이토카인 분비 억제작용)

  • Park, Jeong-Sook
    • Journal of the Korea Convergence Society
    • /
    • v.8 no.1
    • /
    • pp.239-243
    • /
    • 2017
  • This study aims to demonstrate the inhibitory effect of proinflammatory cytokines by using Frankinsense. The present data was designed to determine the production of the frankincence on pro-inflammatory factors such as $TNF-{\alpha}$ and $IL-1{\beta}$ in lipopolysaccharide(LPS) stimulated RAW264.7 macrophages cell. The cell toxicity was identified by CellTiter 96 AQueous One solution cell proliferation assay. To evaluate of anti-inflammatory effect of frankincence, pro-inflammatory cytokines were measured by ELISA kit. As a result, the frankincence reduced NO and $TNF-{\alpha}$ production without cytotoxicity. As a result, Francincense was not cytotoxic at 10 ug / ml-1000 ug / ml and significantly inhibited the proinflammatory cytokines $TNF-{\alpha}$ and $IL-1{\beta}$. The secretion inhibition effect of proinflammatory cytokine is believed to be applicable to various physiological activity data and functional materials to demonstrate the anti - inflammatory properties of frankincense.

Pleuropneumonia in a Cat with Feline Infectious Peritonitis (고양이 전염성 복막염에 의한 흉막폐렴 1례)

  • Park, Seungjo;Bae, Yeonho;Choi, Jihye
    • Journal of Veterinary Clinics
    • /
    • v.32 no.5
    • /
    • pp.454-458
    • /
    • 2015
  • This report describes the diagnostic radiographic and CT features of pleuropneumonia in a cat with wet type of feline infectious peritonitis (FIP). In a 1 year-old cat presented with respiratory distress, pulmonary mass, thickened pleural wall with mass-like structures, and a large amount of pleural effusion were identified on radiography, ultrasonography, and CT. About two months later, in addition to the pre-existing lesions, multiple nodules had developed on the intestine and left kidney. The cat was diagnosed with pleuropneumonia caused by FIP through histologic examination and immunohistochemistry. Pleuropneumonia is rarely reported in cats with FIP, and only one cat with non-effusive FIP had pyogranulomatous pneumonia as consolidated lung lobe. In the present case, pleuropneumonia was detected as multiple mass-like lesions on diagnostic imaging.

Effect of Pre-chlorine and Polyamine Dosing for Microcystis sp. Bloomed Water on Drinking Water Treatment Processes : Particle Matter Distribution (Microcystis sp.로 수화된 상수원수에 전염소 및 폴리아민 투입이 정수처리에 미치는 영향 : 입자상 물질 분포)

  • Son, Hee-Jong;Kim, Sang-Goo;Lee, Jeong-Kyu;Hwang, Young-Do;Ryu, Dong-Choon
    • Journal of Korean Society of Environmental Engineers
    • /
    • v.39 no.10
    • /
    • pp.556-560
    • /
    • 2017
  • This research carried out to evaluate the disadvantage of pre-chlorination and the effect of polyamine as coagulant aids for treating the blooming water with Microcystis sp.. Pre-chlorination on blooming water makes the colony of Microcystis sp. to the smaller size. Coagulation with polyamine advanced treatment efficiency not only turbidity but also particulate matters especially less then $5{\mu}m$ size for the blooming water compared with using alum alone. Particle count was more sensitive than turbidity on water quality management of settlement and filtrate.

Reversible Watermarking based Video Contents Management and Control technique using Biological Organism Model (생물학적 유기체 모델을 이용한 가역 워터마킹 기반 비디오 콘텐츠 관리 및 제어 기법)

  • Jang, Bong-Joo;Lee, Suk-Hwan;Kwon, Ki-Ryong
    • Journal of Korea Multimedia Society
    • /
    • v.16 no.7
    • /
    • pp.841-851
    • /
    • 2013
  • The infectious information hiding system(IIHS) is proposed for secure distribution of high quality video contents by applying optimized watermark embedding and detection algorithms to video codecs. And the watermark as infectious information is transmitted while target video is displayed or edited by codecs. This paper proposes a fast and effective reversible watermarking and infectious information generation for IIHS. Our reversible watermarking scheme enables video decoder to control video quality and watermark strength actively for by adding control code and expiration date with the watermark. Also, we designed our scheme with low computational complexity to satisfy it's real-time processing in a video codec, and to prevent time or frame delay during watermark detection and video restoration, we embedded one watermark and one side information within a macro-block. Experimental results verify that our scheme satisfy real-time watermark embedding and detection and watermark error is 0% after reversible watermark detection. Finally, we conform that the quality of restored video contens is almost same with compressed video without watermarking algorithm.