• 제목/요약/키워드: MT survey

검색결과 401건 처리시간 0.03초

Genetic analyses of Acanthamoeba isolates from contact lens storage cases of students in Seoul, Korea

  • Yu, Hak-Sun;Choi, Kyung-Hee;Kim, Hyo-Kyung;Kong, Hyun-Hee;Chung, Dong-Il
    • Parasites, Hosts and Diseases
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    • 제39권2호
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    • pp.161-170
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    • 2001
  • We conducted both the small subunit ribosomal DNA (SSU rDNA) polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and mitochondrial (mt) DNA RFLP analyses for a genetic characterization of Acanthamoeba isolates from contact lens storage cases of students in Seoul, Korea. Twenty-three strains of Acanthamoeba from the American Type Culture Collection and twelve clinical isolates from Korean patients were used as reference strains. Thirty-nine isolates from contact lens storage cases were classified into seven types (KA/LS1 , KA/LS2, KA/LS4, KA/LS5, KA/LS7 KA/LS18, KA/LS31). Four types (KA/LS1 , KA/LS2, KA/LS5, KA/LS18) including 33 isolates were regarded as A. castellanii complex by riboprints. KA/LS1 type was the most predominant (51.3%) in the present survey area, followed by KA/LS2 (20.9%), and KA/LSS (7.7%) types. Amoebae of KA/LS1 type had the same mtDNA RFLP and riboprint patterns as KA/E2 and KA/E12 strains, clinical isolates from Korean keratitis patients. Amoebae of KA/LS2 type had the identical mtDNA RFLP patterns with A. castellanii Ma strain, a corneal isolate from an American patient as amoebae of KA/LS5 type, with KA/E3 and KA/E8 strains from other Korean keratitis patients. Amoebae of KA/LS 18 type had identical patterns with JAC/E1, an ocular isolate from a Japanese patient. Three types , which remain unidentified at species level, were not corresponded with any clinical isolate in their mtDNA RFLP and riboprint patterns. Out of 39 isolates analyzed in this study, mtDNA RFLP and riboprint patterns of 33 isolates (84.6%) were identical to already known clinical isolates, and therefore, they may be regarded as potentially keratopathogenic. These results suggest that contact lens wearers in Seoul should pay more attention to hygienic maintenance of contact lens storage cases for the prevention of Acanthamoeba keratitis.

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보호종인 히어리의 자생지내외 보전과 지역사회 협력 모델 개발 I. 히어리 분포지 특성에 관한 연구 (Conservation of an endangered Corylopsis corona Uyeki in and ex situ and Development of cooperative model within local community I. Study for a Characteristic of Distribution Pattern in Corylopsis coreana $U_{YEKI}$)

  • 임동옥;황인천;정흥락;유윤미
    • 한국환경생태학회:학술대회논문집
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    • 한국환경생태학회 2005년도 정기총회 및 학술대회
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    • pp.85-101
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    • 2005
  • 우리나라 특산수종인 히어리 분포지 특성에 대해 현지조사와 문헌조사를 실시하였다. 히어리 분포는 전라남도 지역의 보성군, 광양시, 순천시일대, 고흥군 점암면, 구례군 간전면, 장흥군 천관산, 지리산 노고단 전라북도 남원시 천황산, 지리산 뱀사골과 반야봉, 경상남도 산청군, 하동군, 남해군, 경기도 포천시 백운산에 출현하는 것으로 확인되었으며, 히어리 분포역에서 식물상은 70과 159속 216종 22변종 4품종 총 242종류가 확인되었다. 분류군별로는 양치식물이 $5.8\%$, 나자식물이 $3.7\%$, 단자엽식물이 $18.6\%$, 쌍자엽식물이 $71.9\%$로 분석 되었으며, 생활형별 분류에서 1년생이 $1.7\%$, 다년생이 $98.3\%$로 분석되었다. 생장형별 비교에서는 초본성이 $44.2\%$, 덩굴성이 $12.4\%$, 관목성이 $17.8\%$, 교목성이 $25.6\%$로 나타났다. 히어리 군락 분포 유형은 전형적으로 북사면, 북동사면, 또는 북서사면이었으며, 전라남도 승주읍 신전리 자생지는 교목상 숲으로 인해 쇠퇴하는 경향을 보였다.

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보호종인 히어리의 자생지내외 보전과 지역사회 헙력 모델 개발 I. 히어리 분포지 특성에 관한 연구 (Conservation of an Endangered Corylopsis coreana $U_{yeki}$ in and Ex Situ and Development of Cooperative Model within Local Community I. Study for a Characteristic of Distribution Pattern in Corylopsis coreana $U_{yeki}$)

  • 임동옥;황인천;정흥락
    • 한국환경생태학회지
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    • 제19권2호
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    • pp.162-176
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    • 2005
  • 우리나라 특산수종인 히어리 분포지 특성에 대해 현지 조사와 문헌조사를 실시하였다. 히 어리 분포는 전라남도 지역의 보성군, 광양시, 순천시 일대, 고흥군 점암면, 구례군 간전면, 장흥군 천관산, 지리산 노고단 전라북도 남원시 천황산, 지리산 뱀사골과 반야봉, 경상남도 산청군, 하동군, 남해군, 경기도 포천시 백운산에 출현하는 것으로 확인되었으며, 히어리 분포역에서 식물상은 70과 159속 216종 22변종 4품종 총 242종류가 확인되었다 분류군별로는 양치식 물이 $5.8\%$, 나자식물이 $3.7\%$, 단자엽식물이 $18.6\%$, 쌍자엽식물이 $71.9\%$로 분석되었으며, 생활형별 분류에서 1년생이 $1.7\%$, 다년생이 $98.3\%$로 분석 되었다. 생장형 별 비교에서는 초본성이 $44.2\%$, 덩굴성이 $12.4\%$, 관목성이 $17.8\%$, 교목성이 $25.6\%$로 나타났다. 히어리 군락 분포 유형은 전형적으로 북사면, 북동사면, 또는 북서사면이었으며, 전라남도 승주읍 신전리 자생지는 교목상 숲으로 인해 쇠퇴하는 경향을 보였다.

해외 사례 분석과 국내 공간정보 분석을 통한 화산재 피해 분야 선정 (A Study on the Volcanic Ash Damage Sector Selection based on the Analysis of Overseas Cases and Domestic Spatial Information)

  • 한현경;백원경;정형섭;김미리;이명진
    • 대한원격탐사학회지
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    • 제35권5_1호
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    • pp.751-761
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    • 2019
  • 한반도 주변에는 백두산, 아소산, 사쿠라지마산, 키카이산 등이 분포하고 있으며 최근 백두산의 분화 징후가 급증하고 있어 겨울철 분화 시 계절풍에 따라 화산재가 유입될 수 있는 피해가 우려되고 있다. 따라서 화산재 확산 및 피해에 대한 조사 및 대책에 대한 구체적인 절차가 필요하지만 우리나라 국가법령정보센터에서 제시하는 화산재 주의보 및 경보는 '피해가 예상될 때'와 '심각한 피해가 예상될 때'로 기준이 모호하다. 이에 본 연구에서는 피해발생 임계치를 분석하고 국외 피해사례를 국내에 적용하기 위하여, 공신력있는 공공기관의 국내 공간정보 구축 현황 조사를 수행하였다. 국외 화산재 피해 조사 결과 각 국가의 생활 형태나 수입원에 따라 피해사례가 자세히 작성된 부분이 상이하였다. 따라서 국외 화산재 피해 사례를 국내에 집적으로 적용하는 것이 아니라, 국내의 사회환경 및 자연환경의 특징을 반영한 공간정보 분석을 수행하였고 우리나라 화산재 피해발생시 고려해야 할 매체를 선정하였다. 최종적으로 국내 화산재 피해내역은 보건, 주거, 도로, 철도, 항공, 전력, 수도, 농업, 축산, 산림 그리고 토양으로 분류하는 것이 적합할 것으로 사료된다. 본 연구는 국내외 화산재 피해가 발생했을 경우 공신력 있는 공간정보를 활용해 피해 항목을 정리 했다는 것에 의미가 있으며, 향후 우리나라에 최적화된 화산재 경보 수립할 때 본 연구에서 조사한 국외 화산재 피해사례 및 국내 공간정보구축 현황은 정책수립에 도움이 될 것이다.

중국 장백산 조선족 마을의 주거 형식에 관한 조사연구 (A Survey Study on the Characteristics of Korean Chinese Housing Form around Mt. Changbaek in China)

  • 김준봉
    • 한국농촌건축학회논문집
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    • 제2권1호
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    • pp.47-55
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    • 2000
  • The purpose of this study was to analyze the housing form characteristics of Korean Chinese living around Chagbaek mountain in Chinese. The field survey of housing layout and form of houses and interview and observation methods were was used with the data which were obtained form literature and statistical materials of Chinese government. Their houses are called Guytle-house and their analysed characteristics are summarized as follows ; the housing plans are one room type and they tend to have wide site area, abundant storage spaces and efficient energy saving structure.

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대모산 도시자연공원의 정비방향설정에 관한 기초적 연구 (A Study on the Planning for the Daemo Mt. Urban Park)

  • 김현;이동근;권정아
    • 한국환경복원기술학회지
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    • 제5권1호
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    • pp.51-58
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    • 2002
  • Since planning of green-network is deeply being discussed, natural environmental disruption from an enlarged civilization is causing serious problems for urban communities. The purpose of this research is to support green-network infrastructure of Gangnam-gu, Seoul, considering ecological environmental planning for urban parks. The Methodologies for this study are landcover classification, NDVI and subjective analysis, and residents' survey. Findings of this research are as follows : 1) Based on the results, the area adjacent to Daemo mountain shows significant differences between 1985 and 1999. These results imply that the green space has been decreasing and deeply destroying. 2) Residents' survey shows that people want to live with wild animals and plants in the natural park. Future development planning of urban park should consider primary factors : ecosystem, increasing inhabitants' participation.

GIS를 이용한 서울시 지하수 오염분석 연구 (Groundwater Pollution Analysis Using GIS)

  • 김윤종;원종석;이석민
    • Spatial Information Research
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    • 제8권2호
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    • pp.317-328
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    • 2000
  • 지하수는 한번 오염되면 원상복구가 어렵고 피해가 장기적으로 나타날 수 있으므로 그 관리가 아주 중요하다. 지하수 오염관리를 위해서는 오염 현황파악과 공간적 확산예측이 필수적이며, 이를 위해서는 GIS를 이용한 체계적인 분석이 필요하다. 따라서 지하수의 과학적 관리를 위해서는 다양한 지하수 자료들의 체계적인 데이터베이스구축이 필수적이며, 이를 기반으로 지하수관리정보시스템에서 오염현황이 분석된후 지하수업무와 직접 연계, 활용되어야 한다. 금번연구는 이러한 배경속에서 서울시 지하수관리를 위해 구축된 지하수관리 통합시스템의 전문분석 서브시스템을 이용하여 중구 일부지역을 대상으로 질산성질소(NO3N)의 오염확산을 분석한후 축척 1/5,000 오염확산예측도가 작성되었다. ´96년 서울시에서는 기초조사시 1/25,000 수문지질도를 작성하였으나 이 자료로는 지역적 지하수 오염관리가 어려우며, 금번연구를 통하여 작성된 대축적 분석도면들의 활용이 기대된다. 본 연구를 위해서 사용된 GIS시스템은 Arc/Infor, Are/View이며, 지하수분석을 위해서는 MODFLOW, MT3D가 이용되었다.

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A Study of the Characteristics of the Appearances of Lepidoptera Larvae and Foodplants at Mt. Gyeryong National Park in Korea

  • Han, Yong-Gu;Nam, Sang-Ho;Kim, Youngjin;Choi, Min-Joo;Cho, Youngho
    • Journal of Ecology and Environment
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    • 제36권4호
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    • pp.245-254
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    • 2013
  • This research was conducted over a time span of three years, from 2009 to 2011. Twenty-one surveys in total, seven times per year, were done between April and June of each year on major trees on trails around Donghaksa and Gapsa in Mt. Gyeryong National Park in order to identify foodplants of the Lepidoptera larvae and their characteristic appearances. During the survey of Lepidoptera larvae in trees along trails around Donghaksa and Gapsa, 377 individuals and 21 species in 8 families were identified. The 21 species were Alcis angulifera, Cosmia affinis, Libythea celtis, Adoxophyes orana, Amphipyra monolitha, Acrodontis fumosa, Xylena formosa, Ptycholoma lecheana circumclusana, Choristoneura adumbratana, Archips capsigeranus, Pandemis cinnamomeana, Rhopobota latipennis, Apochima juglansiaria, Cifuna locuples, Lymantria dispar, Eilema deplana, Rhodinia fugax, Acronicta rumicis, Amphipyra erebina, Favonius saphirinus, and Dravira ulupi. Twenty-one Lepidoptera insect species were identified in 21 species of trees, including Zelkova serrata. Among them, A. angulifera, C. affinis, and L. celtis were found to have the widest range of foodplants. Additionally, it was found that many species of Lepidoptera insects can utilize more species as foodplants according to the chemical substances in the plants and environments in addition to the foodplants noted in the literature. Also, it is thought that more species can be identified with a survey of various woody and herbaceous plants.

Relevance of Dental Health Capacity and Pulmonary Function Status in Adults

  • Song, Kwui-Sook;Ryu, Da-Young;Kim, In-Ja
    • 치위생과학회지
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    • 제17권5호
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    • pp.454-461
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    • 2017
  • The purpose of this study was to confirm the relevance of dental health capacity and pulmonary function status. The subjects of this study were adults aged 40 years and older, who participated in pulmonary function and oral examinations. The data used for this study were raw data from the sixth Korea National Health and Nutrition Examination Survey (2013~2015). Statistical analysis was performed by analysis of complex sample survey data. The results were as follows: First, restrictive and obstructive patterns were more prevalent among males than females. They were even worse in older subjects. Approximately 67% of smokers had obstructive pattern. Second, there was a relevance between dental health capacity and pulmonary function status. The functioning teeth index, number of present teeth, and number of sound teeth (ST), which are indicators of dental health, declined with decreased pulmonary function. The number of missing teeth (MT) increased as the pulmonary function deteriorated (p<0.05). Third, the relevance between dental health capacity and pulmonary function status after stratifying the life-long smoking experience was statistically significant in the tissue health (T-health) index and ST among non-smokers. The relevance between dental health capacity and pulmonary function status after stratifying the life-long smoking experience was statistically significant (p<0.05) for the T-health index, ST, and MT among smokers. However, there was no relevance between dental health capacity and pulmonary function status after stratifying the life-long smoking experience and adjusting confounding variables. In conclusion, there was a relevance between dental health capacity and pulmonary function status after confounding variables were adjusted. However, there was no relevance between dental health capacity and pulmonary function status after stratifying the life-long smoking experience and adjusting confounding variables.

On Schmarda's lost earthworm and some newly found New Zealand species (Oligochaeta: Megadrilacea: Lumbricidae, Acanthodrilidae, Octochaetidae, & Megascolecidae s. stricto)

  • Blakemore, Robert J.
    • Journal of Species Research
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    • 제1권2호
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    • pp.105-132
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    • 2012
  • The saga of Megascolides orthostichon (Schmarda, 1861)-the first native worm described from Australasia-continues as its type-locality is unequivocally returned from Hobart, Tasmania to Mt Wellington, Auckland where a brief survey failed to unearth it. Since it has not been seen for 150 yrs, it may qualify under NZTCS or IUCN classification as 'Nationally Critical' if not 'Extinct'. New reports are for exotic Megascolecidae Anisochaeta kiwi sp. nov. and A. kiwi mihi sub-sp. nov. plus addition to the NZ faunal list of Australian Anisochaeta macleayi (Fletcher, 1889) that, due to its wide distribution in Australia and now New Zealand, may be a candidate model-species suitably resilient for eco-toxicological culture and monitoring. For holarctic Lumbricidae, new records are of Dendrobaena attemsi (Michaelsen, 1903) and the Murchieona muldali (Omodeo, 1956) morph or subspecies of M. minuscula (Rosa, 1906), neither lumbricid previously uncovered in Asia/Australasia. Also found for the first time outside its East Asian homeland is Eisenia japonica (Michaelsen, 1892) (which is compared to Japanese E. japonica hiramoto sub-sp. nov. and to E. anzac Blakemore, 2011). Records of these exotics plus recent new native species described by the author-including two, Rhododrilus mangamingi and Deinodrilus orcus spp. novae, herein-raise the numbers of megadriles known from New Zealand to 228 (sub-)species in five families. Preliminary mtDNA COI sequence barcodes are presented. Genus Tokea Benham, 1904 is revived on its lack of dorsal pores, losing or gaining some species with Megascolides M'Coy, 1878. An updated checklist of all 228 New Zealand taxa is appended.