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Debates on the Korean Name of Geopark (지오파크(Geopark) 명칭에 대한 논의)

  • KIM, Chang-Hwan
    • Journal of The Geomorphological Association of Korea
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    • v.18 no.1
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    • pp.73-83
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    • 2011
  • The aim of this paper is to explore the concept, backgrounds of an geopark's origin, and activity of geopark in geography, and to debate the Korean name of the geopark (or geological park) in controversial. Geopark starts with the collaboration between International Geographical Union(IGU) and International Union of Geological Sciences(IUGS). However, the intention which is establishing the law of geopark (or geological park) within a specific academic realm in Korea, would be wrong. The reason for this argument is that activities in Geopark have aspects of the conservation of natural heritage as well as geomorphological and geological one. Therefore, geopark should not be focused upon a specific academic realm. The geological scope alone seems to be limited. That is why "GEO" is more than geology. "GEO" involves geographical and geomorphological issues as well. Within this context, in Korea where is in the quickening period of geopark, the discussion and agreement with the Korean name of geopark are absolutely imperative.

Effect of UV Irradiation and Rebamipide on the Blood Flow and Viability of Rabbit Skin Flap

  • Suh, Eung-Joo;Choi, Hyoung-Chul;Sohn, Uy-Dong;Ha, Jeoung-Hee;Lee, Kwang-Youn;Kim, Won-Joon
    • The Korean Journal of Physiology and Pharmacology
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    • v.1 no.5
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    • pp.581-589
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    • 1997
  • This study was undertaken to examine the effects of ultraviolet light (UVL) and rebamipide on the cutaneous blood flow and tissue survival on rabbit skin flap. In a random bipedicle flap, Laser Doppler Flowmetry (LDF) was employed to measure the blood flow of flap (BFF). Wound Margin Strength (WMS) measured by force transducer and Light microscophy were used for evaluation of tissue viability. Single exposure to UVL increased the BFF gradually for more than 15 hours, and decreased the vasoconstrictor effect of intravenous phenylephrine. The UVL-induced increase in BFF regressed after 18 hours of irradiation, and this regression was tended to be enhanced by intradermal injection of L-NAME, a nitric oxide synthase (NOS) inhibitor, but the regression was significantly reversed by acetylcholine, an endothelial constitutive NOS (cNOS) activator and L-arginine, an NO precusor. Rebamipide, a novel antiulcer agent known to scavenge the hydroxyl radical, abruptly reversed the spontaneous regression of the UVL- induced increase in BFF by the same manner as L-arginine. In ischemic skin flap, rebamipide increased the BFF abruptly by the same manner as sodium nitroprusside (SNP), an NO doner, while N-acetylcystein (NAC), a free radical scavenger, gradually increase the BFF. The rebamipide-induced increase in BFF was sustained at the level of the SNP-induced increase in BFF during the late period of experiment. Rebamipide increased the WMS of skin flaps and prevented the tissue necrosis in comparison with L-NAME. Based on these results, it is concluded that in rabbit skin, UVL irradiation increases the BFF by NO release, and rebamipide exerts a protective effect on the viability of ischemic skin flaps by either or both the increase in BFF by NO release and free radical scavenger effect.

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A Study of Music Regulations of Broadcasting Advertising (방송 광고의 음악 규제에 대한 연구)

  • Cho, Jae-Yung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.9
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    • pp.394-400
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    • 2016
  • This study reviewed critically the music regulations of broadcasting advertising and analyzed the post reviews of Korea Communications Standards Commission(KCSC) to find their problems and suggest alternatives for their improvements. As general core regulations, lyrics changes of children's song is banned except in non-commercial public advertising and lyrics changes to folk songs are permitted unless it includes the product related expressions, such as brand name; both of their arrangements are permitted. According to the items, the lyrics of the CM song of drug advertising should not include its brand name; alcoholic beverage advertising is banned if the lyrics of the CM song include product-related brand name or an expression encouraging drinking. The rationales of these regulations of restrictions or prohibitions of music in broadcasting advertising are unclear and are insufficient. Therefore, it will be necessary to improve them based on the evidence or knowledge by more valid research in the future.

Moderate and Deep Hypothermia Produces Hyporesposiveness to Phenylephrine in Isolated Rat Aorta

  • Cho, Jun Woo;Lee, Chul Ho;Jang, Jae Seok;Kwon, Oh Choon;Roh, Woon Seok;Kim, Jung Eun
    • Journal of Chest Surgery
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    • v.46 no.6
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    • pp.402-412
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    • 2013
  • Background: Moderate and severe hypothermia with cardiopulmonary bypass during aortic surgery can cause some complications such as endothelial cell dysfunction or coagulation disorders. This study found out the difference of vascular reactivity by phenylephrine in moderate and severe hypothermia. Methods: Preserved aortic endothelium by excised rat thoracic aorta was sectioned, and then down the temperature rapidly to $25^{\circ}C$ by 15 minutes at $38^{\circ}C$ and then the vascular tension was measured. The vascular tension was also measured in rewarming at $25^{\circ}C$ for temperatures up to $38^{\circ}C$. To investigate the mechanism of the changes in vascular tension on hypothermia, NG-nitro-L-arginine methyl esther (L-NAME) and indomethacin administered 30 minutes before the phenylephrine administration. And to find out the hypothermic effect can persist after rewarming, endothelium intact vessel and endothelium denuded vessel exposed to hypothermia. The bradykinin dose-response curve was obtained for ascertainment whether endothelium-dependent hyperpolarization factor involves decreasing the phenylnephrine vascular reactivity on hypothermia. Results: Fifteen minutes of the moderate hypothermia blocked the maximum contractile response of phenylephrine about 95%. The vasorelaxation induced by hypothermia was significantly reduced with L-NAME and indomethacin administration together. There was a significant decreasing in phenylephrine susceptibility and maximum contractility after 2 hours rewarming from moderate and severe hypothermia in the endothelium intact vessel compared with contrast group. Conclusion: The vasoplegic syndrome after cardiac surgery might be caused by hypothermia when considering the vascular reactivity to phenylephrine was decreased in the endothelium-dependent mechanism.

Reexamination of plant names in the literature published during the Japanese Imperialism Period with special reference to Hwangjeong and Wiyu (일제 강점기 문헌에 나오는 식물명의 재검토: 황정(黃精)과 위유(萎蕤)를 중심으로)

  • SHIN, Hyunchur
    • Korean Journal of Plant Taxonomy
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    • v.49 no.3
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    • pp.253-260
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    • 2019
  • The plant names Hwangjeong and Wiyu were written in Chinese characters in Hyang-yak-jib-seong-bang during the early Chosen dynasty. However, soon after, Hwangjeong and Wiyu were written in Korean characters as Jukdae and Dung-gul-re, respectively. However, since under the Japanese imperialist period in Korea, the taxonomic identities of these two Korean names have been incorrectly understood, with scientific names incorrectly assigned as well to these two names thus far. The results of the present study prove that Hwangjeong is Polygonatum sibiricum and that its Korean name should be Jukdae, its initial Korean name, and not Cheung-cheung-gal-go-ri-dung-gul-re, as used recently. Meanwhile, during the Japanese imperialist period, Wiyu was termed P. officinale or P. japonicum with the Korean name of Dung-gul-re. However, the correct scientific names were shown to be synonyms of P. odoratum.

Discussion : Statistics toward Information Sciences (토론 : 정보 관련 통계학과의 방향)

  • 박노진
    • The Korean Journal of Applied Statistics
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    • v.12 no.2
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    • pp.717-719
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    • 1999
  • A lot of the departments of statistics the Korean universities have changed their departmental names into those related with information sciences. The department of statistics in Taejon University also changed its departmental name, since industries are demanding the statisticians with knowledges about information sciences. The curriculum of the department was reorganized as the graduates can immediately satisfy the demand of future parment was reorganized as the graduates can immediately satisfy the demand of future employers. However, we believe that these should be some departments of statistics devoting to teach high level of statistical theories and to do researches on statistical theories.

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A taxonomic note of Ageratina altissima and Eupatorium rugosum (Asteraceae: Eupatorieae) (미국등골나물과 서양등골나물(국화과: 등골나물족)의 분류학적 검토)

  • OH, Sang-Hun
    • Korean Journal of Plant Taxonomy
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    • v.49 no.3
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    • pp.261-264
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    • 2019
  • Eupatorium rugosum Houtt. is known to be an alien invasive species and is listed as an ecosystem disturbance species in Korea. There is also an eastern North American species Ageratina altissima (L.) R. M. King & H. Rob. similarly dispersed in Korea. This article aims to clarify the taxonomic confusion regarding the species. The two names refer to the same species originally described as Ageratum altissimum by Linnaeus in his Species Plantarum. Ageratum altissimum was transferred to the genus Eupatorium and later to Ageratina. Eupatorium rugosum is the replacement name in Eupatorium because of E. altissimum L., an existing name based on the different type. When the species was transferred to Ageratina, A. altissima was published based on its basionym, as the epithet "altissima" was available in the genus. It seems that taxonomic confusion regarding the species in Korea is due to the recognition of the names as different taxa. Ageratina altissima is the correct name for the species based on morphological and molecular data.

Dexmedetomidine inhibits vasoconstriction via activation of endothelial nitric oxide synthase

  • Nong, Lidan;Ma, Jue;Zhang, Guangyan;Deng, Chunyu;Mao, Songsong;Li, Haifeng;Cui, Jianxiu
    • The Korean Journal of Physiology and Pharmacology
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    • v.20 no.5
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    • pp.441-447
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    • 2016
  • Despite the complex vascular effects of dexmedetomidine (DEX), its actions on human pulmonary resistance arteries remain unknown. The present study tested the hypothesis that DEX inhibits vascular tension in human pulmonary arteries through the endothelial nitric oxide synthase (eNOS) mediated production of nitric oxide (NO). Pulmonary artery segments were obtained from 62 patients who underwent lung resection. The direct effects of DEX on human pulmonary artery tension and changes in vascular tension were determined by isometric force measurements recorded on a myograph. Arterial contractions caused by increasing concentrations of serotonin with DEX in the presence or absence of L-NAME (endothelial nitric oxide synthase inhibitor), yohimbine (${\alpha}_2$-adrenoceptor antagonist) and indomethacin (cyclooxygenase inhibitor) as antagonists were also measured. DEX had no effect on endothelium-intact pulmonary arteries, whereas at concentrations of $10^{-8}{\sim}10^{-6}mol/L$, it elicited contractions in endothelium-denuded pulmonary arteries. DEX (0.3, 1, or $3{\times}10^{-9}mmol/L$) inhibited serotonin-induced contraction in arteries with intact endothelium in a dose-dependent manner. L-NAME and yohimbine abolished DEX-induced inhibition, whereas indomethacin had no effect. No inhibitory effect was observed in endothelium-denuded pulmonary arteries. DEX-induced inhibition of vasoconstriction in human pulmonary arteries is mediated by NO production induced by the activation of endothelial ${\alpha}_2$-adrenoceptor and nitric oxide synthase.

A Study on the Database Integration Methodology using XML (XML을 이용한 데이터베이스 통합방안에 관한 연구)

  • Oh Se-Woong;Lee Hong-Girl;Lee Chul-Young;Park Jong-Min;Suh Sang-Hyung
    • Journal of Navigation and Port Research
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    • v.29 no.10 s.106
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    • pp.883-890
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    • 2005
  • Database Integration problems has been recognized as a critical issue for effective logistics service in logistics environment. However, researches related to effective methodology for this have been studied theoretically in the DB schema integration, are insufficient in the side of the system realization. The aim of this paper is to present a schema integration technique to integrate DB using XML( eXtensible Markup Language) in the part of practical DB integration, a quantitative methodology for the identification of conflict that is a representative problem on database integration. To achieve this aim, we extracted the entity name and attribute name from DB schema and suggested a quantitative methodology to easily fine name conflict that frequently give raise to a trouble when schema integration, based on the level of semantic similarity between attributes and entities.