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Copepod Associated with Ascidians from Korea. II. A New Species of Botryllophilus (Copepoda, Cyclopoida, Ascidicolidae) from Simple Ascidians at Chindo Island in the South Sea, Korea

  • Seo, In-Soon;Lee, Kyung-Sook
    • Animal Systematics, Evolution and Diversity
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    • v.11 no.1
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    • pp.79-86
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    • 1995
  • A new species of ascidicolid copepod associated with a simple ascidian, Styela clava Herdman, from Chindo Island in the South Sea, belonging to the genus Botryllophilus , is described under the name of B. koreensis.

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A new taxon of Hymenophyllum (Hymenophyllaceae): H. wrightii f. serratum (처녀이끼속의 신분류군: 구름처녀이끼(처녀이끼과))

  • Lee, Chang Shook;Lee, Kanghyup;Lee, Seong Gwon;Ebihara, Atsushi
    • Korean Journal of Plant Taxonomy
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    • v.44 no.4
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    • pp.233-237
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    • 2014
  • A new taxon, Hymenophyllum wrightii f. serratum C.S. Lee & K. Lee (Hymenophyllaceae), forma nov. was collected and described from forests in Mt. Halla, Jeju-do, Korea. This taxon, H. wrightii f. serratum C.S. Lee & K. Lee (vernacular name: 'Gu-reum-cheo-nyeo-i-kki') was distinguished from H. wrightii f. wrightii by having smaller leaves, broader basal part of leaf blade, broad-ovate laminae, larger sori and serrate margins of lips of involucres. The new taxon's name is based on serrate margin shape of the lips. A Korean name, 'Gu-reum-cheo-nyeo-i-kki', was newly given based on its habitat. Descriptions and its photograph in the habitat are provided along with a key to the species of Hymenophyllum from Korea.

FUNCTION ALGEBRAS ON BIDISKS

  • Chi, Kieu Phuong;Dieu, Nguyen Quang
    • Bulletin of the Korean Mathematical Society
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    • v.49 no.2
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    • pp.235-247
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    • 2012
  • We study sufficient conditions for function algebras generated by four smooth functions on a small closed bidisk near the origin in $\mathbb{C}$ to coincide with the space of continuous functions on the bidisk. This problem in one dimension has been studied by De Paepe and the second name author.

Implementation of Pitch Name and Chord Display (음이름 및 화음 표시장치의 구현)

  • Kwak, Young-Ju;Kim, Dae-Ho;Koo, Moon-Suk;Hwang, Dong-Hwan
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.97-98
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    • 2011
  • 본 논문에서는 악기의 음을 주파수 분석한 후 음이름을 찾고 이를 이용해 화음을 표시하는 장치를 기술한다. 장치는 PC기반으로 설계하였고 주파수분석을 위해 FFT를 이용하였다. 이러한 기능을 하는 하드웨어와 소프트웨어를 설계하고 구현한 결과를 제시한다.

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ON CORSINI HYPERGROUPS AND THEIR PRODUCTIONAL HYPERGROUPS

  • Al Tahan, M.;Davvaz, B.
    • Korean Journal of Mathematics
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    • v.27 no.1
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    • pp.63-80
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    • 2019
  • In this paper, we consider a special hypergroup defined by Corsini and we name it Corsini hypergroup. First, we investigate some of its properties and find a necessary and sufficient condition for the productional hypergroup of Corsini hypergroups to be a Corsini hypergroup. Next, we study its regular relations, fundamental group and complete parts. Finally, we characterize all Corsini hypergroups of orders two and three up to isomorphism.

Littorophiloscia lineuta, n. sp. from Korea with Remarks on the Synonymies associated with Littorophiloscia nipponensis Nunomura, 1986 (Isopoda, Oniscidea, Philosciidae) (Littorophiloscia속의 한국산 1신종의 기재 및 L. nipponensis Nonomura, 1986의 동물이명에 관하여)

  • Do Heon Kwon;Kyu
    • The Korean Journal of Zoology
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    • v.36 no.4
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    • pp.556-561
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    • 1993
  • Littorophilosa lineuta is described from Korea as new. Four Littorophiloscia species from Japan (L. nipponensis Nunomura, 1986; L. hoyoshii Nunomura, 1986; L. longicouda Nunomura, 1986; L. hvugoensis Nunomura, 1986) are considered to be conspecific. L. nipponensis is chosen as a valid name anti L. koreono Taiti and Ferrara, 1986 from Korea is considered as another junior svnonyrn.

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Review on Safety and Health Information on Humidifier Disinfectant (가습기 살균제 제품에 표기된 안전보건정보 고찰)

  • Park, Dong-Uk;Lee, Seunghee;Lim, Heung-Kyu;Bae, Seo-Youn;Ryu, Seung-Hun;Ahn, Jong-Ju
    • Journal of Environmental Health Sciences
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    • v.43 no.5
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    • pp.349-359
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    • 2017
  • The objective of this study is to review the safety and health information displayed on containers of humidifier disinfectants (HD). We summarized not only general characteristics related to the marketing and manufacturing of HD, such as the duration sold and the name of the company, but also the safety and health information, such as identification of disinfectants, recommended use volume, and precautions. All of this information was reviewed by HD brand. We collected safety and health information from 31 HD brands. We found that companies that sold and manufactured HD brands differ. Two companies were found to sell their HD without permission after 2011 when the health effects caused by HD were widely known. The name of the disinfectants were not identified on the container of HD. The recommended volumes were found not to be based on toxicological evidence and set without consideration of the level of susceptibility of users. Most companies displayed phrases such "this HD is safe for humans, even children" on the front of the container. No inhalation and skin toxicity precautions were provided. In conclusion, most HD did not properly display information related to safety and health to protect the health of HD users. There has been no official investigation to evaluate the risks posed by HD, such as the sales volume by HD, identification of chemical disinfectants, or their concentration, nor have there been actions to control the chemical quality of HD. In addition, government actions to punish the malicious practices of companies that manufactured and sold HD were found to inappropriate.

Clinical Study of Acupuncture Effect by Measuring Amperage from Chong points (정혈(井穴)의 도전량(導電量) 측정에 의한 무자(繆刺) 및 거자법(巨刺法)의 유용성에 관한 임상 고찰)

  • Ahn, Kyu-Beom;Wang, Wu-Hao;Lim, Jin-Kang;Jang, Hyoung-Seok
    • Journal of Acupuncture Research
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    • v.18 no.4
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    • pp.13-21
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    • 2001
  • Objective : This study is performed to evaluate the clinical effect of acupuncture to acu-points in the normal side by means of amperage measured from chong points. Methods : Among the outpatients with ankle sprain who visited to Department of Acupuncture & Maxibustion, Jaseng oriental medicine hospital from 21, December 2000 to 10, February 2001, we selected 11 persons who showed normal finding in the X-ray. They were divided into two groups. One group was treated with acupuncture to acu-points in the painful side and the other was treated with acupuncture to acu-points in the normal side. Before and after acupuncture, we measured the amperage from their chong points. We selected 10 persons who we thought they were healthy as a control group. We also measured the amperage from their chong points. Results : Between the control and the ankle sprain group, there were significant differences of differences between the amperages of Rt. chong point and Lt. thong point of the same name. Between the group treated with acupuncture to acu-points in the painful side and the group treated with acupuncture to acu-points in the normal side, there were no significant differences of differences between the amperages of Rt. chong point and Lt. chong point of the same name. Conclusion : This result indicated that the acupuncture to acu-points in the painful side was not less effective than the acupuncture to acu-points in the normal side, and so the more study is needed continuously.

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A Study of 'Stupid Words' (피휘(避諱)에 관한 연구)

  • Park, Pil-Sang;Kang, Ok-Hwa;Lee, Go-Hoon;Park, Shin-Young;Seong, Man-Jun;Kwon, Dong-Yeul
    • Herbal Formula Science
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    • v.15 no.1
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    • pp.129-135
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    • 2007
  • Characters are the tool of writing language. In particular, Chinese characters were the tool of communicating, storing and intermediating information in Chinese traditional medicine, and exercised great influence on diseases, diagnoses, treatments and others. Stupid Words are used to avoid calling the name of an emperor or an elder. The Stupid Words, written in old literature, were mostly used to avoid calling the name of emperors in those days. At first, those were used to express respect, but with time, the rule began to be strict. Those who violate the rule were dismissed or expelled; what is worse, even their families were exterminated. Medical books were no exception to the rule. The history of Stupid Words is originated from primitive society. Those were begun to be used customarily, and were institutionalized over time. Although dynasties had been changed in large numbers in history, Stupid Words were not disappeared and had been used until feudalism rings down the curtain. In addition, the characteristics of Stupid Words became different as to each age, and exercised great influence on old literature. The Stupid Words in Chinese traditional medicine are shown in herbal names, authors' names, terminologies, symptomatological names and others. Through Stupid Words, the date of publication can be presumed, and pleonasms can be discriminated from lacunae, and it can be judged whether those works are true or not. On the other hand, those cause inconvenience philologically. The Stupid Words in old medical books became different semantically throughout the years, and so the original became difficult to be translated as well as its meaning cannot be communicated correctly. Eventually, time and effort are expended unnecessarily in some cases.

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