• 제목/요약/키워드: RARE SPECIES

검색결과 853건 처리시간 0.025초

CHEMOPREVENTIVE STRATEGY IN POMEGRANATE(PUNICA GRANATUM): IMPLICATIONS FOR EVOLUTION AND TREATMENT

  • Mo, Huanbiao;Jiang, Wen;Lansky, Ephraim;Campbell, Moray
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2001년도 International Symposium on Dietary and Medicinal Antimutgens and Anticarcinogens
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    • pp.19-19
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    • 2001
  • Pomegranate (Punica granatum) is one of the worlds most ancient fruits, and also one of the most botanically isolated, comprising a single family (Punicae) with its rare relative, Punica protopunica, a species limited in occurrence to the island of Socotra off the coast of Yemen. Pomegranate, though, is extremely well known, flourishes in many parts of the world, is traditionally prized for its medicinal properties and widely regarded as Symbol: of fecundity, longevity, spirituality and Medicine.(omitted)

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계명산층 페그마타이트에 수반되는 우라늄·토륨 광상의 지구화학적 특성 (Geochemistry of Uranium and Thorium Deposits from the Kyemyeongsan Pegmatite)

  • 박맹언;김근수
    • 자원환경지질
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    • 제31권5호
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    • pp.365-374
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    • 1998
  • Economic U- and Th-bearing pegmatite deposits occur in the Kyemyeongsan Formation, and are spatially closely associated with the Carboniferous alkali granite. The pegmatite is lithochemically alkaline and peralumious, and consists mainly of potassic feldspar and quartz with allanite and U- and Th-bearing minerals. Paragenetic stages of mineralization in the pegmatite are divided as follows: early silicate mineralization, main rare metal mineralization, and late silicate mineralization. Thorite, euxenite, fergusonite and uranpyrochlore are the predominant U- and Th-bearing minerals. Both the enrichments of Nb, Y, Th, U, and Ta and the depletions of Hf, Ba, and Rb in the pegmatite were resulted from magmatic differentiation. The increases of Na and Ca in uranpyrochlore, of Th and U in fergusonite, of Si, Th, U and Pb in thorite, and of Nb and Y in euxenite were possibly resulted from both later internal fractionation and hydrothermal alteration. The variation of chemical composition in a mineral species reflects the different pysico-chemical conditions during the crystallization.

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한국출혈열과 관계되는 소포유동물에 대하여(예보) (Small Mammals in Relation to Korean Hemorrhagic Fever a preliminary report)

  • 애드윈엘타이슨
    • 한국동물학회지
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    • 제10권1호
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    • pp.35-38
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    • 1967
  • 한국출혈열환자의 발생이 보고된 5 개군사시설내 및 그 주변의 소포유동물에 대한 조사 결과, 사람과 극히 관련성이 많은 동물이 Mus musculus 이어서, 이 동물이 다른 동물들보다 출혈열과 관련이 깊으리라고 추측된다. Rattus rattus 는 촌락과 농가에 흔하지만,군사시설내에는 많지 않았다. 두 종의땅쥐, Crocidura lasiura 와 C. Suaveolens 는 흔하지 않았으나, 출혈열환자와 접촉이 많은 경우가 가끔 있었다. 다른 소포유동물들은 대단히 드물거나 인적이 드문 곳에 살고 있었다.

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제주도 곶자왈 숲, 국제적으로 중요한 습지 (Gotjawal Forest In Jeju Island as an Internationally Important Wetland)

  • 장용창;이찬원
    • 한국습지학회지
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    • 제11권1호
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    • pp.99-104
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    • 2009
  • 곶자왈 숲이란 대한민국 제주도에 있는 "아아 용암"이라는 바위 지대 위에 형성된 숲을 가리킨다. 이 논문에서 곶자왈 숲이 람사협약상 국제적으로 중요한 습지임이 밝혀진다. 곶자왈 숲은 람사협약에서 습지의 한 종류로 규정하고 있는 지하수시스템이므로 람사협약상 습지로 간주되어야 한다. 또한 곶자왈 숲은 수문학적 중요성을 가지고 있는 제주도의 대표적인 습지유형이며 희귀식물들의 자생지이므로 국제적으로 중요한 습지이다.

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금속광물상에 나타나는 식물에 관한 생리생태학적 연구 3. 괴산 우라늄광지대 식물의 방사선생태학적 징상 (Physiological and Ecological Studies of the Vegetation on Ore Deposits)

  • Chang, Nam Kee;Chang Soo Mok
    • The Korean Journal of Ecology
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    • 제5권4호
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    • pp.137-142
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    • 1982
  • From 1975 to 1981, the survey was carried out to find out radioecological effects of uranium ore deposits on natural vegetation in Koisan, Korea. The symptoms of spotty and mosaic chlorosis, and necrosis were observed in flowering plants in the areas of uranium ore deposits at Deok-Peung-Ri A, B, and C in Koisan. Although 13 species were found to be chlorosis and necrosis, foliages observed are small and very rare. The features of these symptoms closely resemble those occured by the effects of heavy meetals. The amount of transparent radiation throughout the depth of soils from uranium radiation sources decreases exponentially. The mean contents in leaves of spotty and mosaik chlorotic plants, and soils were 1.36~1.53 and 5.3~7.4 ppm, respectively.

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자연사박물관 멀티미디어 웹 컨텐트 검색 시스템 구축 (Development of Multimedia Web Contents Search System for Natural History Museum)

  • 박선영;강주영;이인기;용환승
    • 정보관리학회지
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    • 제16권3호
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    • pp.101-115
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    • 1999
  • 본 연구에서는 자연사박물관 웹 컨텐트 자료 중 특히 천연기념물, 멸종 위기종, 보호대상종 및 회귀동물, 특산종 들을 중심으로 컨텐트 검색 시스템을 구현하는 것을 목적으로 하고 있다. 이를 위해, 컨텐트 정보를 데이터베이스시스템에 저장하고, 저장된 자료를 웹 상에서 효과적으로 서비스 할 수 있는 검색 시스템을 구축하였다.

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Isolation and Characterization of Three Zygomycetous Fungi in Korea: Backusella circina, Circinella muscae, and Mucor ramosissimus

  • Nguyen, Thuong T.T.;Lee, Hyang Burm
    • Mycobiology
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    • 제46권4호
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    • pp.317-327
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    • 2018
  • While surveying undiscovered fungal taxa in Korea, three rare zygomycetous fungal strains, CNUFC-PTF2-1, CNUFC-TF3-1, and CNUFC-ESAF3-1, were isolated from soil, leaf, and freshwater samples, respectively. The strains were analyzed morphologically as well as phylogenetically based on the internal transcribed spacer region and 28S rDNA sequences. Sequence analysis of the two loci revealed that the isolates, CNUFC-PTF2-1, CNUFC-TF3-1, and CNUFC-ESAF3-1, were identified as Backusella circina, Circinella muscae, and Mucor ramosissimus, respectively. These species have not yet been previously described in Korea.

Uterine leiomyosarcoma in a captive female capybara (Hydrochoerus hydrochaeris): a case report

  • Lee, Hany;Kim, Soo-Hyeon;Bae, Min-Kyung
    • 대한수의학회지
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    • 제62권2호
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    • pp.11.1-11.4
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    • 2022
  • A captive female capybara (Hydrochoerus hydrochaeris) of unknown age discharged a bloody mass from the vaginal region. A histopathology examination revealed the mass to be a reproductive leiomyosarcoma, and an ovariohysterectomy was performed. The histopathology examination confirmed that the excised tissue was a uterine leiomyosarcoma. The purpose of this report is to describe clinical history and histopathological diagnosis of leiomyosarcoma in capybaras. This report is novel because it describes the first diagnosis of uterine leiomyosarcoma in a capybara. Since clinical data about capybaras are rare, this case report will help to diagnosis and treat reproductive diseases of this species.

A case of hepatic anisakidosis caused by Anisakis pegreffii mimicking liver cancer

  • Minoru Yamada;Fumi Murakoshi;Hisashi Ikoma;Osamu Inamori;Akio Yanagisawa;Eiichi Konishi
    • Parasites, Hosts and Diseases
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    • 제61권3호
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    • pp.292-297
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    • 2023
  • Extra-gastrointestinal anisakidosis is rare. We herein report an Anisakis pegreffii infection in a patient with hepatic anisakidosis diagnosed based on its molecular identification. A 71-year-old male patient had a hepatic tumor presenting as a low-density area of 20 mm in diameter in segment 6 of the liver on abdominal ultrasonography, computed tomography, and magnetic resonance imaging. The surgically resected pathological specimen revealed a necrotizing eosinophilic granuloma containing nematode larvae, possibly an Anisakis larva. Molecular and phylogenetic analysis demonstrated Anisakis larvae belonging to A. pegreffii. The present results will help identify and characterize unknown Anisakis species in histological sections.

Redescription of Gonostomum algicola and G. gonostomoida (Ciliophora: Spirotrichea: Sporadotrichida) Unknown from Korea

  • Kim, Yeon-Uk;Shin, Mann-Kyoon
    • Animal Systematics, Evolution and Diversity
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    • 제22권2호
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    • pp.209-215
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    • 2006
  • Two rare ciliates from soil under the oak tree and mosses in the top of mountain in Korea were identified as Gonostomum algicola Gellert, 1942 and G. gonostomoida (Hemberger, 1985), respectively. There is little information on their morphological features, therefore their detailed redescriptions are needed. The description was based on the observation of living and protargol impregnated specimens, and biometric analysis. Their diagnostic characteristics are as follows. Gonostomum algicola; $88-113\times30-40{\mu}m$ in vivo, colourless cortical granules, 20-31 adoral membranelles, two fronto-terminal cirri, five fronto-ventral cirri, no mid-ventral cirri, two transverse cirri, two to three micronuceli. Gonostomum gonostomoida; $60-121\times21-40{\mu}m$ in vivo, no cortical granules, 27-34 adoral membranelles, no fronto-terminal cirri, two fronto-ventral cirral rows with each row bearing three cirri, midventral cirral row with 11-14 cirri, two to three transverse cirri, one to six micronuceli. So far, total three species within the genus Gonostomum have been recorded from Korea by the present study.