• Korean Journal of Oriental Medicine
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• v.16 no.2
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• pp.65-73
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• 2010

This study is to discuss the content of Posangkimun on the whole and to report the understanding of Seokgok Lee Gyujoon on western civilization. Through the overall analysis of Posangkimun, it is found the following facts: 1. Posangkimun aroused interest of academic circles as it covered theories of western civilization. Most of the introduction to western civilization contained in the book is related to astronomy and geography. Seokgok criticized all the western theories on revolution of the earth, astronomy, continents and oceans on the ground that these theories were not congruous with the teaching of the Oriental sages. 2. Seokgok found the reasons why the West had led the East from 'nationalism' of the West. The nationalism mentioned here were more similar to 'democracy' in modern sense, or rather 'democratism'. What is specially noteworthy is that he did not find the reasons of western advancement from the spiritual issues not from the machine civilization. In this way, Seokgok could avoid the fallacy of throwing away traditional ideas to concentrate in western machine civilization. 3. The content of Posangkimun shows that Seokgok was a person with a very conservative view. Notwithstanding his inclination, he had good knowledge about western theories, most of which were gathered from newspapers and magazines at that time. It means that newspapers and magazines should be treated with more importance when studying Korean intellectuals in late Joseon period or during the time of Japanese forced occupation.

• Korean Journal of Oriental Medicine
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• v.18 no.2
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• pp.17-24
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• 2012

Research on Seokgok(石谷), Lee Gyu Jun(李圭晙, 1855~1923)'s thought and medicine was progressed from various angles. There is no research on Chinese poem(漢詩) accounting for the half of his collection of literary works, "Seokgoksango(石谷散稿)" yet. Hence, the article reviewed concerns on his life and what life he lived as a Confusion(儒家) writer through his Chinese poem. Should read "Seokgoksango", Seokgok's spiritual orientation and attitude to life were found to have its core in the Confusion(儒家的), especially ethical(道學的) aspect. Seokgok's Chinese poem materialized his spiritual composition more, able to access up to general emotional state, representing concerns and frustration of intellectuals in the latter era of the Choson Dynasty. Anxiety consciousness(憂患) of patriotism and love of the people which traditional intellectuals implicated enough at the turbulent era of early modern time appeared strongly in his works. Also works seeking for devotion(歸依) toward the clean world(淸明世界) staring at the corrupt world losing the national sovereignty at the same time and the expansion(擴散) was able to be found many. The latter half of the 19th century and the early 20th century when Seokgok lived was the period of changeover in the history of civilization called intersection between traditional era and modern times. His Chinese poem showed traditional intellectuals' anxiety, frustration, conflict, and hope based on such times. Along with the status of an Oriental, medical doctor and thinker, up to discussion on the quality of a writer, the intensified research on him is expected.

• Journal of Korean Medical classics
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• v.21 no.4
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• pp.249-260
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• 2008

Accroding to "Hwangjenaegyeong(黃帝內經)", when the food and drink[水穀] enter the mouth, they divided into two different things with solid food[食] and liquid food[飮], then transformed and absorbed into Jeong(精), Gi(氣), and Jinaek(津液) and spread to the entire body. The movement and transformation[運化] of the food and drink in the body can be distinctly described with the circulation of the Yeonggi(營氣) Wigi(衛氣) and metabolism of Jinaek. The leftover food[糟粕] which is not transformed into Jinaek, not delivered to the Jangbu(藏府) like Gan(肝), Shim(心), Bi(脾) and Pe(肺), brought to the Daejang(大腸) and transported through the baekmun(魄門). Or some of them are verified at the Hoejang(廻腸) and brought to the Banggwang(膀胱) through the Hacho(下焦) then transpired them outside the body. The distinguishing mark of the movement and transformation of the food and drink and its transpiration in the "Hwangjenaegyeong" is that the Sin(腎) of five jangs is exclude from the process of the movement and transformation and the process is explained with the fluid like Gi and Jinaek. From the "Nangyeong(難經)", developing of Myeongmun(命門) theory, the importance of the Sin in the delivering process of the food and drink is remarkably highlighted; however in the late period of Chosun dynasty(朝鮮), Seokgok Igyujun(石谷 李奎晙) denied the temporary theory of Myongmun and asserted the original interpretation recovery of "Hwangjenaegyeong".

• Journal of Plant Biology
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• v.20 no.1
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• pp.45-52
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• 1977

During the period of 1975-76, a survey was carried out to find out zinc indicators in the natural vegetation in Korea. The symptoms fo chlorosis were observed in flowering plants in the areas of zinc outcrop of Wolgok-A, Seokgok-9, and Sowolgok. Although 28 species were found to be chlorotic, the total quantity of chlorotic foliage observed was small. Reasons for chlorosis in the areas of zinc are deposits is considered as effects of zinc, lead, copper and calcium ions. Sedum sp. and Dianthus sinensis were confined to soil containing more than exchangeable zinc of 30 ppm and to accumulation in the plants contained at least 1,300-14,000 ppm of zinc. Therefore Sedum sp. and Dianthus sinensis might be used as zinc indicators in Korea.

• Development and Reproduction
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• v.21 no.1
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• pp.101-110
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• 2017

On June 14, 2008 (the first experiment) and July 24, 2008 (the second experiment), the shores of the Boseong River and the sandy beaches, Seokgok-myun, Moksadong-myun, Gokseong-gun in Jeollanam Province were investigated and a total of 29 soft-shelled turtle (Tryonyx sinensis) eggs in the natural spawning nest eggs were collected (13 eggs were collected in the first experiment and 16 eggs in the second experiment). The temperatures in the natural spawning nests were $25.9-36.9{\pm}0.5^{\circ}C$, the depth of the eggs was $5.2-7.5{\pm}0.5cm$ as the distance of the average $6.4{\pm}0.5cm$. 29 eggs were scattered at least 0.2 cm interval. Artificial incubation of 29 eggs was conducted in artificial nest boxes in thermo-plastic composition of the incubator, and then incubated at $26.5-35.5{\pm}0.5^{\circ}C$, and an average constant temperature was $31.2-32.1{\pm}1.0^{\circ}C$. The incubation days ranged from 53 to 55. In case of most turtles, incubation at $31^{\circ}C$ (higher temperatures) generally produces all or mostly females, while incubation at $25^{\circ}C$(cooler temperatures) produces all or mostly males. Exceptionally, in case of genus Trionyx, the sex ratio of female : male of T. sinensis of a freshwater soft-shelled turtle was approximately 1:1, which differs from other genera of turtles and makes T. sinensis Strauch only turtles presently known to lack temperature-dependent sex determination.

• Applied Biological Chemistry
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• v.43 no.2
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• pp.141-147
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• 2000

Interrelation between the antioxidative activity of hot-water extracts of 130 medicinal plants and their cellular antimutagenic activity was investigated. Antioxidative activity was evaluated by assaying electron-donation to DPPH free radical and scavenging of hydroxyl radical $({\cdot}OH)$ generated through Fenton rection, respectively. All medicinal plants examined in this study exhibited markedly electron-donating ability and radical scavenging ability in each assay system. The results demonstrated the fact that Pilbal (Piper longum L.) is the strongest in electron-donating activity, on the other hand, that Seokgok (Dendrobium moniliforme L.) is the strongest in ${\cdot}OH$ scavenging activity. When evaluated their antioxidative activities, 24 medicinal plants including Jimo (Anemarrhena asphodeloides Bunge) were found to be the medicinal plants carrying strong antioxidative activity, which exhibited more than 50% activity compared to the control group in both electron-donating and free radical scavenging. The experiment was also performed to examine whether 11 medicinal plants having significant antimutagenicity damage DNA in the presence of $Cu^{2+}$, showing the fact that all samples tested, except Taeksa (Alisma canaliculatum All. Br.), Paekjain (Nitraria sibirica Pall) and Ohyak (Lindera strychifolia Sieb. et Zucc. Villar) are capable of inducing DNA strand break. We also found that Taeksa and Paekjain strongly block DNA strand break induced by chemical mutagen mitomycin C.

• Journal of Wetlands Research
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• v.24 no.4
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• pp.354-366
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• 2022

To analyze the distribution of plant communities growing in river wetlands and the relationship between biotic and abiotic environmental factors, plant communities and environmental factors were investigated in river wetlands in the Boseong River. The Boseong River Wetland, the research site, consists of Hwapyeong Wetland, Bangujeong Wetland, and Seokgok Wetland. From June to September 2022, a plant community survey was conducted from the perspective of physiognomical vegetation, and the coverage of the emerging species followed the Braun-Blanquet scale. Plant species and the coverage of each species were recorded in the quadrant for plant community survey, and the cover of the quadrant, the total number of species, and the number of exotic species were measured as biological factors. As abiotic factors, altitude, orientation, inclination, soil texture, litter layer depth, dominant species diameter at breast height, and topography were recorded. In a total of 50 square plots, the most common Salix koreensis and Phragmites japonicus communities were found, and the community with the highest Shannon species diversity index was Phragmites japonicus-Echinochloa caudata community. As a result of ordination analysis by DCCA, the most significant clusters were separated according to topographic factors such as leeve, leeve slope, upper floodplain, lower floodplain, upper waterside, middle waterside, lower waterside, river island and opem water. As rare plants that need to be preserved in river wetlands, Hydrocharis dubia and Penthorum chinense were found in lower waterside, and it was found that the management of the river in the reservoir is necessary in line with the topographical distribution of ecosystem-disrupting plants, such as Paspalum distichum var. indutum.