• Title/Summary/Keyword: 뱀

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천연 독소로부터 세포독성물질의 분리 및 정제

  • 김영식
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1994.04a
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    • pp.208-208
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    • 1994
  • 코브라과 (Elapidae)에 속하는 뱀에는 극소량으로도 치사시킬수 있는 독을 가지고 있는데 독을 구성하고 있는 물질중 특정한 계열의 단백질이 매우 두드러진 약리학적 활성을 보여줄수 있다. 따라서 본 연구는 독사들의 혈액독소 및 신경독소를 우리나라에서 제일 종류가 많은 위암세포주(SNU-1)에 대해서 세포독성을 검색하고 곤충 및 해양생물의 독소에 대해서도 위암세포주를 이용하여 검색하였다. 검색 결과 king cobra계통인 Ophiophagus hannah의 분획은 SDS-PAGE에서 분자량이 66,000 부근에 나타난 것이 세포독성물질로 추측되며 더욱 정제하여 아미노산 서열을 비교하고 Phospholipase화성을 측정함으로써 세포독성물질의 규명이 가능하리라 생각된다.

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애완동물시장, 패턴이 변하고 있다. - 뜨는동물

  • Kim, Jeong-Yeon
    • Feed Journal
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    • v.4 no.2 s.30
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    • pp.73-77
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    • 2006
  • 인터넷 포털 사이트 다음의 조사 자료에 의하면 지난 몇 년간 인기 애완동물 베스트 10위 중 1위 개, 2위 고양이, 3위 물고기, 4위 새, 5위 거북이, 6위 햄스터, 7위 원숭이, 8위 뱀, 9위 이구아나, 10위 전갈 등 이었으니, 최근에는 마니아들로부터 한때 인기를 누렸던 기니피그와 고슴도치 이구아나의 등의 감소세가 두드러지고 새롭게 타란툴라(Tarantula)와 같은 이탈리아 맹독성 거미와 같은 독특하고 특이한 동물들이 개성시대에 걸맞게 새롭게 인기군으로 부상하고 있는 추세이다.

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Design and Implementation of Snake Robot with 8 Module (8개의 모듈로 구성된 뱀 로봇)

  • 박병진;서재용;하상형;전홍태
    • Proceedings of the IEEK Conference
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    • 2002.06e
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    • pp.189-192
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    • 2002
  • This paper has been studied the movement of snake robot. In this paper we developed a simulator to simulate the creeping locomotion of a snake robot. This Robot makes possible to analyze the creeping locomotion with the normal-direction slip coupled to gliding along the tangential direction. Using the nonslip condition of the wheels, the robot gains propulsion by means of constrained forces on the wheels caused by bending the joints. The results of simulations show that smooth lateral undulatory motion is achived.

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Snake Robot Motion Scheme Using Image and Voice (감각 정보를 이용한 뱀 로봇의 행동구현)

  • 강준영;김성주;조현찬;전홍태
    • Proceedings of the IEEK Conference
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    • 2002.06c
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    • pp.127-130
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    • 2002
  • Human's brain action can divide by recognition and intelligence. recognition is sensing voice, image and smell and Intelligence is logical judgment, inference, decision. To this concept, Define function of cerebral cortex, and apply the result. Current expert system is lack, that reasoning by cerebral cortex and thalamus, hoppocampal and so on. In this paper, With human's brain action, wish to embody human's action artificially Embody brain mechanism using Modular Neural Network, Applied this result to snake robot.

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생선회로서 붕장어 및 갯장어의 식품성분 특성 비교

  • 김진수;조문래;심효도;김혜숙;허민수;이정석
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.10a
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    • pp.111-112
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    • 2001
  • 붕장어 및 갯장어는 뱀장어, 검은점 곰치, 날붕장어 등과 함께 어체가 뱀 모양을 하고 있어 뱀장어목으로 분류되는 장어류로 대부분이 생선회로 이용되고 있고, 일부 만이 구이용으로 이용되고 있다. 이 중 붕장어는 우리나라 전 연안, 일본 홋카이도 및 동중국해 둥에서 연중 어획되고 있어, 우리나라에서는 일년 내내 즐겨 먹는 대표적인 생선회 중의 하나로 일반인에게는 일본어인 아나고로 더 잘 알려져 있다. (중략)

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Two Cases of Human Infection by Adult of Spirometra erinacei (만손 열두조충 성충에 의한 인체감염 2례)

  • 이순형;채종일서병설조승열
    • Parasites, Hosts and Diseases
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    • v.22 no.1
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    • pp.66-71
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    • 1984
  • Two cases of human infection by adult Spirometra erinacei were proved by collection of worms in Korea. The patients were 24 and 21-year old males residing in a mountainous village in Kangwon-do. They had the clinical complaints of abdominal pain and epigastric discomfort, revealing the diphyllobothriid eggs, $53~59{\times}37-42{\mu}m$ in size, in their stools. They were treated with 500 mg atabrine and purgated with magnesium salts, and 3~4 hours later several chains of tapeworm segments were recovered from the diarrheal stools. The recovered worms revealed the morphological characteristics of spiral-form or coiled uteri, separated vaginal opening from the cirrus sac, incorporated seminal vesicle into the cirrus sac, distribution of testes at the junction between proglottides, asymmetrical eggs with one pointed eggs, etc. and were identified as Spirometra erinacei (Rudolphi, 1819). The cases had the history of eating raw flesh of the snakes and these are considered the source of infection.

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Molecular and Morphological Identification of Ophichthid Leptocephali from the South Sea of Korea (남해에서 채집된 바다뱀과 엽상자어(Leptocephali)의 형태 및 분자 동정)

  • Ji, Hwan-Sung;Kim, Jin-Koo
    • Korean Journal of Ichthyology
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    • v.22 no.4
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    • pp.279-284
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    • 2010
  • Four leptocephali (TL 109.8~129.7 mm) of the family Ophichthidae, collected from Sangju in the South Sea of Korea, were identified using morphological and molecular methods. Our four leptocephali were similar to Ophichthus sp. based on morphological characters: the melanophores present in series of eight gut swellings; total myomeres 144~151; body depth in total length less than 10%; eight or nine black horizontal bands present from anus to caudal fin base. On the other hand, our four leptocephali were identified to Pisodonophis sp. based on 826 base pairs of 12S rRNA gene nucleotide sequences. Our results showed that morphology-based identification did not agree with molecular identification, indicating difficulty in differentiating morphologically between Ophichthus and Pisodonophis leptocephali. We, herein, firstly describe morphological characteristics of Pisodonophis sp. leptocephali from Korea.

First Morphological Description and the Distribution of Ophisurus macrorhynchos (Anguilliformes: Ophichthidae) Leptocephalus Collected from Southeastern Waters of Jeju Island (제주도 남동부해역에서 채집된 바다뱀(Ophisurus macrorhynchos) (뱀장어목: 바다뱀과) 엽상자어의 첫 형태기재 및 분포특성)

  • Ji, Hwan-Sung;Choi, Jung Hwa;Choi, Kwang Ho;Yoon, Sang Chul;Lee, Dong Woo;Kim, Jin-Koo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.47 no.6
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    • pp.888-894
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    • 2014
  • Seventeen specimens of leptocephali [9.8-44.5 mm total length (TL)], of the family Ophichthidae, were collected from southeastern waters off Jeju Island and the Korea-Japan intermediate zone, and identified by means of morphology and genetics. These specimens were identified as belonging to the subfamily Ophichthinae based on various combinations of morphological characters: 211-215 total myomeres; 7 gut swellings; 2 liver lobes connected with the gall bladder on the second lobe; 6-7 postanal pigments present from anus to caudal margin. An analysis of the partial 12S rRNA sequences (849 base pairs) of mitochondrial DNA showed that our specimens must be Ophisurus macrorhynchos because their sequences were concordant with those of the adult O. macrorhynchos (genetic distance = 0.000). Furthermore, their total myomeres were consistent with those of the O. macrorhynchos adult. This is the first time that the morphological characteristics of O. macrorhynchos leptocephali have been described for Korean waters, and we suggest diagnostic characteristics for the genus Ophisurus leptocephali. We hypothesize that one of the spawning grounds of O. macrorhynchos is located in the southeastern part of Jeju Island.