• Title/Summary/Keyword: Inner Asia

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A new species of the genus Eurycletodes Sars G.O., 1909 (Copepoda: Harpacticoida: Argestidae) from South Sea of Korea

  • Bang, Hyun Woo
    • Journal of Species Research
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    • v.9 no.4
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    • pp.480-488
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    • 2020
  • The genus Eurycletodes Sars, 1909 is reported for the first time in Korea. A new species of the genus Eurycletodes was collected from Hansando Island, South Sea of Korea. So far, Eurycletodes comprises 27 species, with no previously recorded species reported in East Asia, including Korea. Eurycletodes (Oligocletodes) vadumus sp. nov. is morphologically most closely related to E. (O.) denticulatus Por, 1967, E. (O.) aculeatus Sars, 1920, and E. (O.) diva Menzel, 2011, but clearly distinguishable from the others based on the following morphological characteristics: absence of A2 exopodal seta, A1 last segment with two inner setae, P4 exp-3 proximal inner seta modified, the ratio of length and of caudal rami (1.6 times), and mandibular palp with three setae. Together with the new species, the number of valid species in this genus has risen to 28. A key to species of the genus Eurycletodes is provided.

Effects of the Chestnut Inner Shell Extract on the Expression of Adhesion Molecules, Fibronectin and Vitronectin, of Skin Fibroblasts in Culture

  • Chi, Yeon-Sook;Heo, Moon-Young;Chung, Ji-Hun;Jo, Byoung-Kee;Kim, Hyun-Pyo
    • Archives of Pharmacal Research
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    • v.25 no.4
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    • pp.469-474
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    • 2002
  • The inner shell of the chestnut (Castanea crenata S. et Z., Fagaceae) has been used as an anti-wrinkle/skin firming agent in East Asia, and preliminary experiments have found that a 70% ethanol extract from this plant material can prevent cell detachment of skin fibroblasts from culture plates. In order to examine the molecular mechanisms underlying this phenomenon, its effects on the expression of adhesion molecules, such as fibronectin and vitronectin, were investigated using the mouse skin fibroblast cell line, NIH/3T3. Using fixed-cell ELISA, Western blotting and immunofluorescence cell staining, it was clearly demonstrated that the chestnut inner shell extract enhanced the expression of the cell-associated fibronectin and vitronectin. Scoparone (6,7-dimethoxycoumarin), isolated from the extract, also possessed similar properties. These findings suggest that the enhanced expression of the adhesion molecules may be one of the molecular mechanisms for how the chestnut inner shell extract preventing cell detachment and may be also responsible for its anti-wrinkle/skin firming effect.

A Study on the Mireuksajiseoktap through the Structural Type of the Buddhist Pagoda in Ancient East Asia (고대 동아시아 불탑 구조체계를 통해 본 미륵사지석탑)

  • Cho, Eun-Kyung;Park, Eon-Kon
    • Journal of architectural history
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    • v.20 no.5
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    • pp.7-29
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    • 2011
  • This research was to suggest the types according to structural system of the pagoda in ancient East-Asia and analyze the pagoda to the west of Mireuksaji temple site by these types. It will be possible to understand consistently the relation of the various form of the pagoda. The results of this research were described separately as follows. 1. The Buddhist pagodas founded in the ancient East Asia can be categorized according to their structural system, which provide us with insight to understand the interrelationship of categories. The pagoda is mainly classified into three categories. The first consists of two structures, an internal and an external structure. The second exposes its internal structure to the outside, and the third has the external components changing into the internal ones. 2. Although the pagoda to the west of Mireuksaji Temple Site have an internal and an external structures, it actually solves the structural problem by adopting the masonry structure in the outside as well as in the inside. Especially in this structural consideration can be found in the stylobate and the foundation structure of the pillar. The plan of the pagoda to the west of Mireuksaji Temple Site was intended to reveal the plane of the post-lintel layered construction which has a member, a main pillar, and the inner space in the cube with stones.

Chestnut Extracts as new Anti-aging agent

  • 김범준;김정하
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.24 no.1
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    • pp.113-126
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    • 1998
  • Inner nutshell of Castanea crenata has been used as an anti-aging and anti-wrinkle agent from the ancient time in east Asia. In order to develop new anti-aging and anti-wrinkle, ethanolic extract of inner nutshell of Castanea crenata was prepared and various biological activities were evaluated. Cor-285 possessed potent tree radical scavenging activity in vitro compared to gallic acid. Cor-285 showed the preventive effect against UV-induced cytotoxicity of fibroblast at concentration of 25-250mg/ml. When Cor-285 was evaluated for its anti-allergic activity, it effectively inhibited histamine release from mast cells induced by compound 48/80. The inhibitory activity was stronger than that of glycyrrhizinate. Cor-285 also showed on vivo inhibition against delayed hypersensitivity as well as croton-oil induced ear edema in mice when topically applied. These results strongly suggest that Cor-285 may reduce immunoregulatory/inflammatory skin trouble. From the attempts to isolate the scavenger, were isolated. In a clinical trial of twenty healthy volunteers with aged skin, 6 weeks application of Cor-285 decreased wrinkle about 26% and increased moisturizing 20% on the skin. All of these results indicate that Cor-285 may be an effective anti-aging and anti-wrinkle agent.

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On the Analysis of Physical Distribution System in Inchon Port (인천항의 물류시스템에 관한 연구)

  • 황해성;곽규석
    • Journal of the Korean Institute of Navigation
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    • v.21 no.1
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    • pp.13-31
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    • 1997
  • Being situated at the key point of northeast asia, the port of Inchon as an entrance to the captial city, Seoul is expected to play in marine transportation in Korean Pennisular on the verge of its reunification. In this thesis, inner-lock physical disstribution system of the port was analyzed, which treats more than 82% of total incoming and outgoing cargoes. The overall findings are as follows; 1. In thet viewpoint of physical distribution system of the port, it takes disadvantages of accessing to inner lock berth due to such natural restrictions as tides, passing the lock and so on. And insufficient port facilities as a whole, causes delay in quay-handling, transfer and storage, also facing with serious congestion in inland transport on the road. 2. It was revealed that the port facilities are insufficient yet in spite of its improved productivity by means of raising the effectiveness of port operation and of installing advanced cargo handling facilities. 3. In order to enhance the effectiveness of inner port physical distribution system , the improvement of lock facilities, expansionof port facilities and more effective terminal operating system are crucial. 4. To ensure the measures to solve the above problem, existent outer-lock ports such as Inchon Sourthern-port and Northern-port are necessary to be redeveloped more positively , otherwise a new port at outskirt of the city should be developed to ensure free connection to inland transportation.

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Selaginella subvaginata (Selaginellaceae), a new spikemoss from China

  • Zhang, Xian-Chun;Shalimov, Aleksandr Petrovich;Kang, Jong-Soo;Zhang, Meng-Hua
    • Journal of Species Research
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    • v.9 no.3
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    • pp.221-232
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    • 2020
  • Selaginella vaginata is a common montane species with broad distribution in China and the Himalaya region, and several species that are morphologically similar to S. vaginata are distributed in Asia. The taxonomic revision of S. vaginata and related species was performed by morphological comparison of leaves, strobili, and spores, and phylogenetic analysis. Based on these results, a new species, S. subvaginata, sp. nov., has been identified. Morphologically, S. subvaginata has intermediate form between S. vaginata and S. repanda, which differs mainly in its main stem being erect, dorsal leaves long-ciliolate on inner margin and outer margin denticulate or with 2-4 cilia at base (long-ciliolate on both inner and outer margins in S. vaginata, denticulate on both inner and outer margins in S. repanda), and acroscopic base of ventral leaves long ciliolate (sparsely long ciliolate in S. vaginata, short ciliolate to denticulate in S. repanda). Moreover, phylogenetic analysis using three chloroplast markers(rbcL, atpI, and psbA) revealed that S. subvaginata is a distinct species among the anisosporophyllous species clade in Selaginellaceae.

Analysis on Non-Market Benefit of Port Re-Modeling Factor Using AHP (AHP를 이용한 항만 리모델링 비시장적 편익요인 분석연구)

  • Yang, Chang-Ho;Yeo, Gi-Tae;Jung, Hyun-Jae;Kim, Ho-Kyun;Son, Yoo-Lee
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.23 no.1
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    • pp.57-62
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    • 2011
  • At this point that port industry brings a new change as the concept of 'Green Logistics' appears, studies on an economic analysis of existing port Re-modeling have normally been conducted focused on market value factors such as Benefit-Cost analysis, On the other hand, there have been few studies on the analysis of Non-market value factors such as environmental value. Therefore, the purpose of this study is aimed to establish a Feasibility analysis model of Incheon inner port Re-modeling in the aspect of Non-market Benefit Factors classified by related factors such as, marine environment, waterfront facility and welfare of users by using AHP methodology based on the extracted result through previous studies.

Molecular evolutionary analysis reveals Arctic-like rabies viruses evolved and dispersed independently in North and South Asia

  • Yu, Xin;Zhu, Hongwei;Bo, Yongheng;Li, Youzhi;Zhang, Jianlong;Jiang, Linlin;Chen, Guozhong;Zhang, Xingxiao;Wen, Yongjun
    • Journal of Veterinary Science
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    • v.22 no.1
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    • pp.5.1-5.16
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    • 2021
  • Background: Arctic-like (AL) lineages of rabies viruses (RABVs) remains endemic in some Arctic and Asia countries. However, their evolutionary dynamics are largely unappreciated. Objectives: We attempted to estimate the evolutionary history, geographic origin and spread of the Arctic-related RABVs. Methods: Full length or partial sequences of the N and G genes were used to infer the evolutionary aspects of AL RABVs by Bayesian evolutionary analysis. Results: The most recent common ancestor (tMRCA) of the current Arctic and AL RABVs emerged in the 1830s and evolved independently after diversification. Population demographic analysis indicated that the viruses experienced gradual growth followed by a sudden decrease in its population size from the mid-1980s to approximately 2000. Genetic flow patterns among the regions reveal a high geographic correlation in AL RABVs transmission. Discrete phylogeography suggests that the geographic origin of the AL RABVs was in east Russia in approximately the 1830s. The ancestral AL RABV then diversified and immigrated to the countries in Northeast Asia, while the viruses in South Asia were dispersed to the neighboring regions from India. The N and G genes of RABVs in both clades sustained high levels of purifying selection, and the positive selection sites were mainly found on the C-terminus of the G gene. Conclusions: The current AL RABVs circulating in South and North Asia evolved and dispersed independently.

Lop-Nor Debates and the Xinjiang Production-Construction Army Corps: A Social Process of Desertification in Northwest China (롭노르 논쟁과 신쟝 생산건설병단 - 중국 서북지역 사막화의 사회적 과정-)

  • 이강원
    • Journal of the Korean Geographical Society
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    • v.38 no.5
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    • pp.701-724
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    • 2003
  • Since the late 19th century, the location and characteristics of Lop-Nor lake have been a major theme of debates among the scholars(Prejevalsky, Richthofen, Kozlov, Hedin, Huntington, Stein, Chen etc.) who have been interested in Inner Asia. In the 1980s the problem to find the exact location and characteristics of Lop-Nor lake was finally solved by the investigation group of the Chinese Academy of Sciences. Ironically, it was possible to find the solution by drying up of the lake due to the change of land use and the expansion of irrigation system in Tarim basin. Specially the excessive development of this area for agricultural use by the Xinjiang Production-Construction Army Corps since 1949 must have influenced on drying up of Lop-Nor lake. Furthermore it can be observed to be the very similar situation to Lop-Nor lake in many areas of Chinese Inner Asia Frontier. According to this finding, it may be proposed that human factors played an important role in the changes of Lop-Nor lake over the previous years too. This study can give an insight on the ecological interpretation of Inner Asian history and the environmental interpretation of the rising nationalism in this area.

The generation and development of the Buddhist Temple having two pagodas in 7-8th centuries (7.8세기 동아시아 2탑식가람의 생성과 전개에 관한 연구)

  • Kim, Sang-Tae;Park, Eon-Kon
    • Journal of architectural history
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    • v.12 no.4 s.36
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    • pp.7-26
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    • 2003
  • This article works on the development process of the Buddhist Temple with two pagodas in the Eastern Asia. in 7-8th centuries. This study was motivated from the observation that why there are many the Buddhist Temple having two pagodas only around the late 7th century, roughly around 670 A.D.. This period corresponds to the Silla Dynasty(in Korean History) and Hakuho Period(in Japan History) among the Eastern Asia while the composition of the temple being changed as Buddhism spreads out from China. The results of this study are the followings. The appearance of the Buddhist Temple having two pagodas was resulted from the representation of the Ideology in Botabpum(dogma of pagoda security) of the Saddharmapundarika Sutra, that is to say, two Buddhas sit side by side and iconography of Esoteric Buddhism dogma supports the spirit for defending one's country. Buddhist Temple having two pagodas in China had separate tab-won(areas with pagodas outer temple building block). Buddhist Temple having two pagodas in Korea had begun with sacheunwangsa temple in Unified-Silla. But it had two pagodas with inner temple area instead of outer. This was different from the composition of China. It can be related to the layout of the temple haying two pagodas in East-Jin(in China History) and the sculpture of two pagodas in Ungang-stonecave(in China). Thus the layout of the Buddhist Temple having two pagodas in Silla had been originated from that of China, but was developed to the main temple layout on her own accord. As Japanese Temple having two pagodas had been influenced diplomatically, it had two pagodas inner area as like the layout in Shilla. But later under the influence of Tang it was modified to the layout having them in separate area. And this influence can be seen for example Tangchojaesa temple. For the more, We call see that the diplomatic trends according to the policies in East asia affected to Buddhism and then naturally also to the layout of the Buddhist Temple.

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