• Title/Summary/Keyword: Namwon

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Identification and Characterization of Cercospora malayensis Causing Leaf Spot on Kenaf

  • Park, Sung-Hee;Choi, In-Young;Lee, Wang-Hyu;Lee, Kui-Jae;Galea, Victor;Shin, Hyeon-Dong
    • Mycobiology
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    • v.45 no.2
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    • pp.114-118
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    • 2017
  • In September 2013 and 2014, a significant number of kenaf plants showing symptoms of leaf spots with approximately 50% incidence were found in experimental plots in Iksan and Namwon, Korea. Leaf spots were circular to irregular, more or less vein-limited, reaching to 10 mm in diameter. The spots were initially uniformly brown to reddish brown, turning pale brown with a purplish margin and showing grayish patches on the lesion due to heavy fructification. The causative agent of the leaf spot disease was identified as Cercospora malayensis. The pathogenicity test was conducted with similar results, which fulfilled Koch's postulates. This is the first report of C. malayensis infection of kenaf in Korea.

Isolation, identification and epidemiological study of akabane virus on Jeiu-do (제주지역의 akabane virus에 대한 역학조사 및 원인체 분리동정)

  • 강완철;김은주;현관종;전창익;김희석;이두식
    • Korean Journal of Veterinary Service
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    • v.23 no.1
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    • pp.93-102
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    • 2000
  • In this experiment, we studied the sero-positive rate of akabane virus in cattle from Jeju-do and analyzed the seroepidemiological features. In an analysis of 1,051 samples, the positive rate for neutralizing antibody in sera collected in nine regions on Jeju-do was 56.7%. The rate varied with the region. The positive rate was 69.6% in Aewol, 63.1% in Jeju city, 54.4% in Anduck, 51.0% in Hallim, 69.8% in Jocheun, 47.6% in Pyosun, 40% in Daejeong, 30.0% in Harkyung, 71.6% in Namwon, 24.5% in Sungsan, 133.,3% in Seokypo and 44.5% in Gujwa, respectively The rate also depended on the age of the cattle. The positive rate was 67.2% in calves 0- to 12-month old, 48.3% in cattle 13- to 24-month old, 65.4% in cattle 25- to 36-month old, and 65.4% in cattle more than ,B7 months old. To isolate the virus from calves with malformations including arthrogryposis and hydranencephaly, cerebral homogenates were inoculated into Vero cells, which were determined for cytopathic effect (CPE). Vero cells with CPE were examined for Akabane virus using an electron microscope (EM) and indirect immunofluorescent antibody test (EM). Typical virus particles with a width of 90-130nm and specific immunofluorescence in the cytoplasm of infected cells were sought for identification.

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Prevalence of blood parasites infection and experimental treatment in Korean native goats (재래산양에서 주혈미생물의 감염실태 및 실험적 치료시험)

  • 허부홍;전창권;이희문;김용수;김윤태;이정원;최승옥;안병목;송희종
    • Korean Journal of Veterinary Service
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    • v.18 no.3
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    • pp.42-52
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    • 1995
  • Anaplasmosis is most important tick-borne rickettsial diseases of domestic ruminant. with Anaptasma spp. as their respective causal agents. In order to the survey prevalence of anaplasmosis in Korean native goats, we examined the Giemsa's blood filrms from 552 grazing and 188 nongrazing-goats in Chonbuk area Namwon, Imsil and Sunchang. The conclusive diagnosis was made by observing the characteristic marginal or central bodies in the red blood cells. The infection rate of grazine and nongrazing-goats with Anaplasma spp. was 71.7% and 8.5%, respectively. In order to study about the therapeutic effects of drug for 40 grazing-oats infected with Anaptasma spp. in mountain-area, Berenil(diminazene acetate) was jntramuscularly injected (0.5㎖ /10kg B.W.). After 1 month, we don't detected the parasite in the blood films from 33 goats(82.5%), but no change of significant hematological values(PCV, ESR, WBC, RBC, MCH, MCHC, PLT, MPV, PDW and HB) was observed. These results indicated that the infection rate of Anaplasma spp. was higher on glazing than nongrazing-goats and Berenil as an antianaplasmal drug is recommended.

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Magnetic Susceptibility and Petrochemical Compositions of Mesozoic Granites in Korea (국내 중생대 화강암의 대자율 특성과 화학조성)

  • 홍세선
    • The Journal of the Petrological Society of Korea
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    • v.13 no.1
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    • pp.16-33
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    • 2004
  • By relating mineralogy, petrology and geochemistry to observed magnetic properties, an understanding of the geological factors that control magnetic signatures is obtained. Magnetic susceptibility measurements and geochemical analyses were carried out for 160 samples in the Jurassic to Cretaceous granitoids, which is distributed to Pocheon, Jipori, Geumsan, Namwon, Songnisan, Yongdam, Masan, Jindong, and Taebaeksan areas. The magnetic properties of igneous infusion in these granites reflect bulk rock composition, reduction-oxidation state, hydrothermal alteration which are controlled by tectonic setting, composition and history of the source region, depth of emplacement and nature of wall rocks.

Karyotype Analysis of Liobagrus somjinensis, an Endemic Species in Korea (한국 고유종 섬진자가사리 Liobagrus somjinensis의 핵형 분석)

  • Cho, Yun Jeong;Park, Jong Young
    • Korean Journal of Ichthyology
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    • v.28 no.3
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    • pp.175-178
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    • 2016
  • The karyotype analysis of Liobagrus somjinensis, an endemic Korean freshwater fish with restricted waters and a new species of torrent catfish was carried out from nine females and eight males of Somjingang River, Sikjeong-dong, Namwon-si, Jeollabuk-do, Korea. The diploid number of chromosomes was 42, and its karyotype was composed of 28 metacentrics and 14 submetacentrics; 84 FN (fundamental number). Polyploidy and sex dimorphism were not observed in the present species. The chromosome number of L. somjinensis was the same as its congeners, but there was a difference in karyotypes.

Recurrent or Habitual Type TMJ Dislocation Case Managed with Yinyang Balance Appliance of FCST, a TMJ Therapy for the Balance of the Meridian and Neurological System (FCST의 음양균형장치를 활용한 만성 재발성 턱관절 탈구의 증례 보고)

  • Lee, Young-Jun;Lee, Sang-bae;Choi, Jae-min
    • Journal of TMJ Balancing Medicine
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    • v.4 no.1
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    • pp.21-26
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    • 2014
  • Therapeutic effect of Yinyang Balancing Appliance of functional cerebrospinal therapy (FCST) for meridian and neurologic yinyang balance was observed in recurrent or habitual type temporomandibular joint (TMJ) dislocation. One Recurrent or habitual type TMJ dislocation case was managed with the Yinyang Balancing Appliance on TMJ, combined with acupuncture. Clinical outcome measurement was based on subjective measures and clinical observations. The patient showed positive changes even after the initial treatment and this effect maintained over the follow-up period. Although it is not clear the effect is sustaining or temporary in its nature, a positive effect was observed and further clinical and biological research on FCST is expected.

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Intraoral Appliances in the Medical Classics of 12th to 19th Centuries (12~19세기 한의학 고전문헌에 나타난 턱관절 구강내장치에 대한 고찰)

  • Lee, Young-Jun;Lee, Sang-Bae;Choi, Geun-Wook;Yin, Chang Shik
    • Journal of TMJ Balancing Medicine
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    • v.4 no.1
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    • pp.1-4
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    • 2014
  • Objectives: Intraoral appliances (IOA) are applied in the clinical practice of Korean medicine to improve the balance between yin and yang of the body such as temporomandibular joint balancing medicine. Historical examples of IOA were not well known. This study reports prototype IOA's described in medical classics. Methods: Several medical classics of 12th to 19th centuries were narratively reviewed for prototypical descriptions of IOA's in the context of clinical practice. Results: IOA's in the medical classics reviewed adopted such materials as bamboo, chopsticks, and coins that were adjusted in the height and were used as a temporary IOA's with response of the patient being monitored. IOA's were applied integratively with herbal medicine for diverse complaints such as pain, hearing problem, cough, asthma, and rhinorrhea. Conclusions: Prototype IOA's in the medical classics suggest an individualized, integrative, and holistic principle and usage of IOA's in the tradition of Korean medicine.

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Studies on Ecological Characteristics and Control of Exotic Weeds 1. Distribution and ecological characteristics of exotic weeds in forage crop field (주요 외래잡초의 생태적 특성 및 방제에 관한 연구 1. 조사료 포장에 발생하는 주요 외래잡초의 분포 및 생태적 특성)

  • 박근제;윤세형;이종경;김영진
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.21 no.2
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    • pp.97-102
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    • 2001
  • This study was carried out to survey the weed distributions in 6 areas(Suwon, Seonghwan, Seosan, Taekwanryeong, Namwon and Yeongam) and to investigate the ecological characteristics of exotic weeds from 1997 to 1999. Total 44 species in 15 families of exotic weds were observed in grassland and forage crop field. Among them 4 species in 1 family were monocotyledonous and 40 species in 14 families were dicotyledonous weeds. Most common species among exotic weeds examined in this study were Rumex acetosella, Rumex crispus. Chenopodium album, Abutilon theophrasti, Amaranthus retroflexus, Polygonum orientale etc. Inedible weeds with hairs, prickles, fetor or poison were Solanum carolinense Xanthium strumarium, Datura stramnium, Erechtites hieracifolia, Anthemis cotula, Phytolaca americana etc. The relative density of Phytolaca americana increased with decreament of soil pH and content of available phosphate, and that of Solanum carolinense increased with decreament of soil pH and increament of available phosphate. Most of exotic weed seeds germinated well under light condition with $25~30^{\circ}C$, and some of those were hard or dormant seed.

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Changes of Chromatic, Chemical and Organoleptic Characteristics of Green Leaf Tobaccos during Storage in Warehouse (미가공 잎담배 저장 중 색상, 화학성분 및 끽미 변화)

  • 정기택;안대진;이종률;김상범
    • Journal of the Korean Society of Tobacco Science
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    • v.24 no.2
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    • pp.88-93
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    • 2002
  • This study was carried out to investigate the changes of chromatic, chemical and organoleptic characteristics of green leaf tobaccos during storage in warehouse. Eight grades(flue-cured ; A2O, B2O, C2L and D2L, burley ; A2T, B2T, C2W and D2W) of green loaves produced in 2001 were stored during 8 months(Oct. 30, 2001 to Jun. 30, 2002) in warehouse of Kimcheon(flue-cured) and Namwon(burley) Leaf Tobacco Processing factory, respectively. Moisture contents of D2L in flue-cured and four grades in burley were significantly decreased during storage in warehouse. Redness(a) values of six grades except for D2L and D2W were significantly increased during storage. Lightness(L), yellow(b) and pH values, and the contents of nicotine, total nitrogen and total sugar were not changed during storage. Irritations of flue-cured tobacco were increased, whereas tastes were decreased during storage. Irritations and tastes of burley tobacco were little changed during storage. The result suggests that the flue-cured green leaf being processed as early as possible for minimizing the deterioration of smoke taste during storage in warehouse.

Studies on the improvement of reproductive efficiency in Korean native cows -Plasma progesterone concentrations during the estrous cycle and early pregnancy- (한우(韓牛)의 번식효율(繁殖效率) 증진(增進)에 관한 연구(硏究) -발정주기(發情周期) 및 임신초기(姙娠初期)의 progesterone 농도변화(濃度變化)-)

  • Kang, Byong-kyu;Choi, Han-sun;Lee, Chung-gill;Son, Chang-ho;Suh, Guk-hyun
    • Korean Journal of Veterinary Research
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    • v.30 no.2
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    • pp.243-247
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    • 1990
  • A study was conducted to improve the reproductive performance of Korean native cows. Plasma progesterone concentrations were determined by radioimmunoassay during the estrous cycle and early pregnancy. Plasma progesterone concentrations during the estrous cycle in the 15 cows were the lowest (0.30ng/ml) at estrus, gradually increased after 6 days, remained high from 8 to 17 days (3.87~5.59ng/ml) and drastically decreased thereafter to reach minimal concentrations at the next estrus. Plasma progesterone concentrations of the 10 pregnant cows at 20 days after insemination were $5.82{\pm}1.33ng/ml$ (mean${\pm}$SD) and those of 10 non-pregnant cows were $0.30{\pm}0.21ng/ml$, respectively. Therefore, plasma progesterone concentrations in the pregnant cows at 20 days after insemination were significantly higher than in non-pregnant cows (p<0.001).

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