• Title/Summary/Keyword: Rare forms

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Floristic study of Mt. Jaamsan in the Gyeongsang supergroup, Korea (경상누층군 자암산의 관속식물상)

  • Kim, Jung-Hyun;Park, Hwan-Joon;Nam, Gi-Heum;Lee, Kyeong-Ui;Kim, Jin-Seok
    • Korean Journal of Environmental Biology
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    • v.37 no.3
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    • pp.229-248
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    • 2019
  • This study was carried out to investigate the flora of Mt. Jaamsan on the Gyeongsang supergroup, Korea. From the results of eight field surveys from March to October 2017, we have identified 530 total taxa, representing 483 species, eight subspecies, 35 varieties, two forms, and two hybrids, which were placed in 325 genera and 110 families. The plant formation of Mt. Jaamsan is the deciduous broad-leaved and conifer mixed forests, which are the common ones in the middle part of the Korean Peninsula. Most of the mountain is covered with young secondary forest, which is mainly composed of Quercus spp., and Pinus. Out of these 530 taxa, 12 are endemic to Korea, 17 taxa are listed on the Korean Red List of threatened species, 65 are floristic target species, and 55 are invasive alien species. The percentage of naturalized index(NI) and urbanization index (UI) were 10.4% and 17.2%, respectively. Mt. Jaamsan has a high plant diversity, including endemic and rare species, which consist of geomorphological landscapes. We considered that the composition and distribution of species are affected by the different environmental factors according to the sedimentary rocks, drying ridges, valleys, and streams. Together with the rocks and soils were the substrate type that play a major role in providing the unique habitats for sun plants in the area.

The flora of land plants (bryophytes and vascular plants) in Wangpicheon Ecosystem and Landscape Conservation Area (ELCA), Korea (왕피천 생태경관보전지역의 육상(비관속 선태식물 및 관속식물) 식물상)

  • LEE, Seung Hyuk;AHN, Jin-Kap;PARK, Seung Jin;KIM, Chul Hwan;CHOI, Seung Se
    • Korean Journal of Plant Taxonomy
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    • v.50 no.3
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    • pp.279-317
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    • 2020
  • This study presents the flora of nonvascular plants (bryophytes) and vascular plants within the Wangpicheon Ecosystem and Landscape Conservation Area in Korea. The time of the survey was divided into four seasons. The fieldwork was conducted for a total of 18 days from November of 2016 to October of 2017. The land plants in the Wangpicheon conservation area were identified as 758 taxa with 164 families, 455 genera, 698 species, 10 subspecies, 47 varieties and 3 forms. Among them, bryophytes amounted to 122 taxa and vascular plants numbered 636 taxa. Native plant amounted to 693 taxa. In total, there are 113 floristic target species in Korea, including one level V taxon, in this case Swertia wilfordii; six level IV taxa; 31 level III taxa; 38 level II taxa; and 37 level I taxa. There are nine endemic plants, including Sillaphyton (=Peucedanum) podagraria, which is the endemic genus; two rare plants; fifteen northern plants; and one southern plant as target plants adaptable to climate change. Also, there are forty-six naturalized plants and five ecosystem-disturbance organisms. The results of this study suggest several species that should be preserved and can serve as basic information with which to establish conservation and management plans for the Wangpicheon conservation area.

Surgical Treatment of Pulmonary Mucormycosis (폐 모균증의 외과적 치료)

  • Kim, Ju-Hyeon;Park, Seong-Sik;Sin, Yun-Cheol;Seong, Suk-Hwan
    • Journal of Chest Surgery
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    • v.29 no.3
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    • pp.350-354
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    • 1996
  • Pulmonary mucormycosis is a very rare but often fatal opportunistic fungal infection caused by the order Mucorales in class Zygomycetes. Reported overall mortality exceeds 70% and the diagnosis is often made post-mortem. We experienced 2 cases of typical form of pulmonary mucormycosis. One patient was a poorly controlled diabetic and the other suffered from acute Iymphocytic leukemia (ALL). The former was diagnosed by a bronchoscopic biopsy and the latter by a pathologic examination from the percutaneous drain of a subphrenic abscess. Both of them underwent a surgical excision of the involved lung tissue. The patient with diabetes mellitus was successfully treated by surgical resection and discharged without complications. The other with ALL underwent a second operation and was transferred to the department of internal medicine for further management of his relapse of lettkemia. Recent literat re suggests that early aggressive diagnostic effort and treatment including surgical resection in the case of localized forms of the disease results in a good prognosis.

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A Case Report of the Primary Lung Lymphoma (폐 종괴로 발현한 원발성 폐림프종 치험 1예)

  • Kim, Ye-Ree;Youn, Seong-Yuk;Yoo, Kwang-Ha;Ahn, Chul-Min;Kim, Hyung-Joong;Jin, Choon-Jo
    • Tuberculosis and Respiratory Diseases
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    • v.47 no.2
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    • pp.272-278
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    • 1999
  • The primary lymphoma in the lung is very rare. Moot of the primary pulmonary lymphomas, which represent 3-4 % of extra-nodal lymphomas, are low-grade B-cell lymphoma. The low-grade B-cell lymphomas progress slowly and the prognosis of these are more favorable than that of the nodal lymphomas. However, high-grade forms progress rapidly with more severe course. The diagnosis of primary pulmonary lymphomas generally relies on the histopathologic findings of lung specimens obtained by surgical excision of the lesions or open-lung biopsy. Recently, less aggressive biopsies(transbronchial, transthoracic) and/or immunocyto-chemical, immunochemical and gene rearrangement studies on materials obtained by bronchoalveolar lavage have been used occasionally. The treatment of the primary pulmonary lymphomas has not been precisely codified. Several clinical data suggest that limited surgery or non-aggressive chemotherapy can provide long-term survival in patients with such slowly developing neoplasm, and demonstrated the need for the development of noninvasive diagnootic methods. In this study, we report a case of high-grade B-cell lymphoma of the lung which was treated with combination chemotherapy.

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A Case of Goodpasture's Syndrome with Normal Renal Function (정상 신기능을 보인 Goodpasture 증후군 1예)

  • Kim, Sung Kyoung;Lee, Jin Kook;Joo, Kyeo Rae;Hur, Sung Eun;Kim, Jeong Hoon;Kim, Young Kyoon;Lee, Sook Young;Kim, Seung Joon;Kim, Chi Hong;Song, So Hyang;Park, Sung Hark;Choi, Young Jin
    • Tuberculosis and Respiratory Diseases
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    • v.59 no.1
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    • pp.86-92
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    • 2005
  • Goodpasture's syndrome is a disease that is characterized by hemoptysis, anemia, and glomerulonephritis with renal failure. Goodpasture reported a case of a young man who expired as a result of a pulmonary hemorrhage and glomerulonephritis at the recovery phase after an influenza infection in 1919. In 1958, Stanton et al. described a combined case of these two diseases as Goodpasture's syndrome. Since then, antiglomerular basement membrane antibody(anti-GBM Ab) has been confirmed to play an important role in the mechanism of this syndrome, and it was reported that this syndrome was an autoimmune disease. The triad of alveolar hemorrhage, glomerulonephritis and circulating anti-GBM Ab forms the basis of a diagnosis of Goodpasture's syndrome. When patients are affected by disease, the relief of symptoms can be accomplished by eliminating the anti-GBM Ab from the circulatory system through hemodialysis, plasmapheresis and immunoabsorption. However, the patients usually die from a massive pulmonary hemorrhage when the diagnosis or treatment is delayed. The incidence of Goodpasture's syndrome is common in the western world, but it is extremely rare in Korea with only five cases being reported. In three of these cases, pulmonary hemorrhage and renal failure was the initial manifestation. Therefore, hemodialysis or plasmapheresis were absolutely essential treatments. We report a case of Goodpasture's syndrome in Korea with a normal renal function.

A Comparison of Characteristics between Danish and Korean Farmhouses -In Reference to Farmhouse Plans, Use of Rooms including Furniture Arrangement, and Building Materials-

  • Choi, Jung-Shin
    • International Journal of Human Ecology
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    • v.8 no.1
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    • pp.67-78
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    • 2007
  • The aim of this paper was to compare differences and similarities of farmhouses between Denmark and Korea as a cross-cultural study. Farmhouses built during the 18th and 19th centuries in Denmark, and ones from Chosun Dynasty (AD. 1392-1910) in Korea were targets of this study. Literature study and field trips to districts and open-air museums in both countries were used. Field trips were carried out during summer of 2005 in Denmark, and fall of 2005 in Korea. Detailed comparisons focused on farmhouse plans, the use of rooms and furnishing, and building materials. As a conclusion, some differences were found between the two countries. In terms of farmhouse plans, square types with four wings, and parallel types were the most frequent forms in Denmark, while a few types, such as the "I", "L", "U" shapes and square types, were more frequently found in Korea. In Denmark, the most important room was the dwelling-room, in which daily family life took place. Every member of the family slept, ate, and worked here, and kept geese and young animals during the winter season. Therefore, this room was laid out in the center of the house. However, Anbang, the most important room in Korea, was not situated in the best part of the house. Instead, the Daechung-maru occupied the center and the best place because the daechung-maru, in which the ancestral ceremony was held, was thought of as more important than a place for live people. Also the use of rooms and furnishing was quite different between the two countries, reflecting each life style. Danish furnishings represented practical daily life, while Korean furnishings reflected more conceptual aspects. It might have resulted from Confucianism in the Chosun Dynasty, which ruled daily life and even influenced use of rooms and furnishings. In other word, philosophy influenced common peoples' daily life and living environment. With reference to building materials, there was rarely a difference between the two countries. Major materials for farmhouse were quite common, such as half-timbering wood and clay, but the difference was in bricks and roof coverings. Bricks were rarely used in Korean farmhouses, while rice-straw was rare for the roof of a Danish farmhouse. Of course, the choice of materials was strongly affected by the local surroundings and overall environment. This result can give some clues for design ideas when architects and interior designers plan housing that is adapted for local peoples. This kind of cross-cultural study can also contribute to one's understanding of foreign culture, especially in housing and culture. And, it can broaden one's insight of design ideas for designers who have to compete frequently with designers in foreign countries.

A Floristic Study on the Economic Planys of Jisimdo, Naedo and Yundoldo around Koje Island (거제도 인근도서(지심도, 내도, 윤돌도)의 자원식물상 연구)

  • Woo Bok-ju;Park Seong-Jun;Hwang Gyu-Jin;Kim Kum-Suk;Lee Jeung-Wook;Park Seon-Joo
    • Korean Journal of Plant Resources
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    • v.18 no.3
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    • pp.479-489
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    • 2005
  • The floras of Jisimdo, Naedo and Yundoldo around Koje Island were investigated 3 times from January 2004 to November 2004. The vascular plants recorded were 165 taxa, 1 forms, 15 varieties, 149 species, 140 genera, 72 families, The rare and endangered plants were recorded as 1 taxa (Quercus gilva Blume), Korean endemic plants were recorded as 2 taxa (1 variety, 1 species, 2 genera, 2 families). The naturalized plants were 10 taxa, 10 species, 10 genera, 6 families, $3.52\%\;and\;6.1\%$ among the total naturalized plants and Urbanization Index in Korea. Anglers and visiter's number is expected to increase fast because nature of Jisimdo, Naedo and Yundoldo, in which kind and number of naturalized plants are forecasted to be increased more.

A Floristic Study of Geumseongsan Mt. (Geumsan-gun·Chungnam) in Korea (금성산(충남·금산)의 관속식물상)

  • Jang, Kyong-sook;Kim, Jung-Hyun;Lee, Byoung Yoon;Hwang, Kyung-Rok;Ryu, Su-Noh
    • Korean Journal of Plant Resources
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    • v.30 no.5
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    • pp.489-506
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    • 2017
  • This study was carried out to investigate the flora of Geumseongsan Mt. (Geumsan-gun Chungnam). The vascular plants were collected 30 different times, from July 2015 to June of 2016. The results showed that there were 483 taxa in total, included 112 families, 358 genera, 417 species, 8 subspecies, 48 varieties, 8 forms and 2 hybrids. Of these vascular plants, red-list species managed by the Ministry of Environment of Korea included 3 species, and 8 species Korea Forest Service. The endemic species to Korea were identified to 4 species. There were 29 taxa specially designated floristic regional indicator plants by the Ministry of Environment of Korea. The alien plants were identified as 42 taxa, and their naturalization ratio was 8.6%. Usage of 483 taxa were consisted of 190 taxa (39.3%) of edible plants, 162 taxa (33.5%) of pasture plants, 154 taxa (31.8%) of medicinal plants, 58 taxa (12.0%) of ornamental plants, 14 taxa (2.8%) of timber plants, 5 taxa (1.0%) of fiber plants, and 2 taxa (0.4%) of industrial plants.

The Analysis of the Plant Distributional Pattern in Yugu Stream (Gongju, Chungnam) (유구천(충남, 공주)의 식물 분포 현황분석)

  • Moon, Ae-Ra;Lee, Youl-Kyong;Park, Jeong-Mi;Jang, Chang-Gee
    • Korean Journal of Environmental Biology
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    • v.30 no.2
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    • pp.107-120
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    • 2012
  • This study was carried out to illiminate the diversity of vascular plants by making list of rheophyte and hydorphyte plants at Yugu stream. This study was conducted from Aug., 2009 to Sept. 2010 at 7 points. Based on the voucher specimens, vascular plants from investigated areas were 88 families 229 genera 290 species 3 subspecies 30 varieties 5 forms, totally 328 taxa. Korean endemic plants were 3 species such as Forsythia koreana (Rehder) Nakai (planted) and Paulownia coreana Uyeki (planted), and Weigela subsessilis (Nakai) L.H. Bailey. The rare and endangered plants were designated by Korea Forest Service were 4 taxa, such as Penthorum chinense Pursh, Acorus calamus L., Lilium callosum Siebold & Zucc. and Iris ensata var. spontanea (Makino) Nakai. Floristic special plants were totally 26 taxa, which were grade V of 2 taxa, grade IV of 2 taxa and grade III of 9 taxa. Naturalized plants were 27 taxa, that was 8.3% of whole discovered vascular plants in this area. Even naturalized plants has not influence on the vegetation of Yugu stream. Since village was composed along the stream and the roads and banks were linked, naturalized plants were flowed continuously into this region. So, strategy of the conservation for this region should be designed. Based on flora, 3 types of group were discriminated such as main stream type (4 points), branch stream type (2 points) and reservior type (1 point). Each group has difference in composition of plants.

Plants Resources of Northern Region in Gapyeong-gun (가평군 북부의 자원식물)

  • Han, Jong-Won;Yang, Sun-Gyu;Kang, Shin-Ho;Oh, Byoung-Un
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.12 no.4
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    • pp.47-71
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    • 2009
  • The resource plants of northern region in Gapyeong-gun were investigated 7 times from Apr. 2007 to Oct. 2007. In the result of survey, the flora of this area, depend on voucher specimens, consist of 480 taxa totally; 94 families, 286 genera, 412 species, 4 subspecies, 52 varieties and 12 forms. The Resource plants in this area were categorized by their use into edible 177, pasturing 136, medicinal 124, stainable 69, ornamental 133, afforest 24, timber 10, fiber 6, industrial 2 taxa and unknown use plants 72, respectively. There were remarkable plants such as 14 taxa of Korean endemic plants, 85 taxa of specific plants which were designated by the Ministry of Environment, and 12 taxa of rare and endangered plants of Korea Forest Service. Furthermore, 22 taxa of naturalized plants 4.6% were also observed in this area and Urban Index (UI) was 8.2%. The vegetation status of investigated area was comparatively well conserved, but the degree of UI could be increased rapidly by the climbers, development of forest road. Therefore, the systems for conservation need to prepared for the effective management of forest, and the special plans need to control the number of climbers and visitors.