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2 and 13-Week Repeated Dose Oral Toxicity Studies of SWCNT and MWCNT in ICR Mice
Tae Hwan Ahn,Zhong Ze Han,Hong De Xu,Ki Hyun Gil,Joo Young Lee,Kwang Ho Kim,Jin Sook Bae,Ji Young Lee,Ji Hoon Kim,Song Lee,Hak Soo Kim,Jin Seok Kang,Boo Hyun Kang,Hu Song Zhang,Kap Ho Kim,Chan Koo Par 대한수의학회 2010 대한수의학회 학술대회발표집 Vol.2010 No.-
허경석(Kyung-Seok Hu),오현주(Hyun Joo Oh),문형순(Hyung Soon Moon),강민규(Min Kyu Kang),최종훈(Jong Hoon Choi),김기덕(Kee Deog Kim),백두진(Doo Jin Paik),고기석(Ki Seok Koh),한승호(Seung Ho Han),정락희(Rak Hee Chung),박선주(Sun Joo Par 대한체질인류학회 1999 해부·생물인류학 (Anat Biol Anthropol) Vol.12 No.2
치아는 씹기와 발음 뿐만 아니라, 미용적인 측면에서도 매우 중요한 역할을 담당한다. 또한 치아의 계측적, 비계측적 특징은 종족간 인류학적 비교나 고고학적 의의 그라고 개인의 신원 확인에 이용될 수 있으므로 체질인류학적, 고고학적 그리고 법치학적인 중요성을 갖는다. 그러나 이에 대한 연구가 국내에서는 활발히 이루 어지지 않아 한국사람 치아의 제정인류학적 특성에 관한 포괄적인 자료는 찾아보기 힘들다. 이에 연구자들은 가야, 고려 및 조선인의 치아 1085 (71 구 ) 개와 한국 현대사람 남녀의 치아 1397 (96 구 ) 개를 대상으로 각 치아마다 5 가지 항목을 계측하고,9 개 항목의 비계측 특정을 조사하였다. 이러한 치아 계측치와 비계측적 특정이 옛 사람과 현대 사람에서 나타나는 차이 점을 비교하였다. 한국 옛사람과 현대사랍 치아의 계측치들을 비교해 보았을 때, 치아의 얼굴쪽혀쪽 너비는 옛사람과 현대사람에서 계측치의 차이가 나타나지 않은 반면, 치아의 안쪽먼쪽 너비 항목에서는 약간의 차이를 나타내었다. 한국사람 치아의 비계측 특정을 조사해 본 결과, 위턱 안쪽앞니에서 삽모양앞니의 출현율은 옛사람에서 96.4%, 현대사람에서 94.2% 를 보였으며, 위턱 가쪽앞니에서 삽모양앞니는 옛사람 93.1%, 현대사람 90.6% 의 빈 도로 옛사람에서 삽모양앞니의 출현빈도가 더 높았다. 아래턱 둘째작은어금니의 혀쪽 교두의 수를 비교한 결과, 옛사람에서는 l 개 (48.0%) 또는 2 개 (52.0%) 의 혀쪽 교두만야 관찰되었으나, 현대사람의 아래턱 둘째작은어금니는 1 개 (52.3%),2 개 (46.7%) 또는 3 개 (1.0%) 의 혀쪽 교두를 가지고 있였다. 현대사람 위턱 첫째작은어금니에서 테라결절은 치아의 안쪽면에 나타난 경우가 53.7% 로 가장 많았으나, 위턱 둘째작은어금니에서는 결절이 나타나 지 않은 경우가 48.7% 호 가장 많았다. 반면에 옛사람은 현대사랍보다 더 높은 빈도의 테라결절 발현 양상을 보 였다. 위턱 첫째큰어금니에서 카라벨리결절의 출현빈도는 옛사람에서 18.4%, 현대사랑에서 36.2% 로 현대사람에서 더 많이 나타나는 경향을 보였다. 교합면 고랑모양은 위턱 첫째큰어금니에서 ‘4-’ 모양이 가장 많았으나 ( 옛 사람 94.3%, 현대사람 94.3%), 위택 둘째큰어금니에서는 ‘+4’모양이 가장 많이 나타났다 ( 옛사랍 40.5%, 현대 사람 76.5%) 옛사랍 , 현대사람 모두에서 아래턱 첫째큰어금니 교합변 고랑의 형태는 ‘Y5’모양이 가장 많았으며, 아래턱 둘째큰애금니에서는 ‘+4’모양이 가장 많이 나타났다.
Jin Kyo Jung,Bo Yoon Seo,Jum Rae Cho,Chang-Gyu Park,Ki Hong Yum,Yonggyun Kim 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.05
Previous studies indicated that Matsumuraeses phaseoli and M. falcana (Lepidoptera: Tortricidae) are separate species since a few differences were observed in genitalia morphology and female sex pheromone composition. A clear difference was detected in the DNA sequences of cytochrome oxidase I of the two species separately collected in different plants and regions. A hybridization test also showed that a post-zygotic reproductive isolation occurred between the species. In field monitoring, however, both species have been caught simultaneously and together in the separate sex pheromone traps installed for the two species around neighboring soybean and red bean fields. Molecular marker-assisted identification with several adults sampled from the trapped insects showed that only ca. 40% of M. phaseoli adults identified as the species by genitalia morphology was the M. phaseoli, while ca. 97% of M. falcana adults identified as the species was the M. falcana. The result indicated that the observation of genitalia did not make a decisive criterion for classification of the insects. Conclusively, it suggested that the sex pheromones of the two species should be studied more precisely although there is a possibility that the two species are hybridized in fields as in laboratory, and speciation is under process.
Jin Kyo Jung,Bo Yoon Seo,Jum Rae Cho,Chang-Gyu Park,Ki Hong Yum 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.10
Matsumuraeses phaseoli and M. falcana cannot be classified with the external morphological characters. Although differences in the morphology of male genitalia and in the mitochondrial DNA sequence of cytochrome oxidase I between the two species have been found, there is no information that the two species are biologically different species till now. We, therefore in this study, tried to cross the two species to observe postzygotic incompatibility in the next hybrid generations and to know whether the two species are 'biological species' or not. In crossing between the parents, two kinds of F1 hybrids were produced successfully. In inter- and intra-breeding between F1 hybrids, two lines crossed with females of F1 hybrid produced by females of M. phaseoli could not produce F2 adults to show inviability of larvae. The other two lines produced F2 adults successfully and the F2 adults produced F3 larvae in inbreeding. In back-crossing between parents and F1 hybrids, the two lines of 8 breeding lines, in which females of F1 hybrid were produced by females of M. phaseoli, could not produce the next generation of larvae. The other six lines produced F2 adults successfully. The results indicated that maternal factors of F1 hybrid produced by M. phaseoli females contributed to create the incompatibility between the F1 females and other lines. In conclusion, the results showed a postzygotic reproductive isolation between M. phaseoli and M. falcana in part.
‘Youhan’, A new whole crop barley cultivar of hooded spike and spring early regenerative type
Tae-Il Park,Young-Jin Oh,Ouk-Kyu Han,Hyoung-Ho Park,Jong-Chul Park,Sang-Kyun Cho,Jae-Hwan Noh,Dae-Wook Kim,Tae-Hwa Song,Hyun Seok Chae,Jae-Hyun Jeung,Ki-Heung Hong,Jeong-Suk Bae,Jae-Young Huh,Jin Song 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07
‘Youhan’ (Hordeum vulgare L.), a new whole crop barley cultivar, was developed by the breeding team at the Department of Rice and Winter Cereal Crop, National Institute of Crop Science, RDA in 2012. ‘Youhan’ has the growth habit of III, light green and middle size leaf, hooded and lax-type spikes. The cultivar showed 107 cm of culm length, 641 spikes per m2. Heading date of ‘Youhan’ was May 1, one day later than that of check cultivar ‘Yuyeon’ in upland, and 2 days earlier than that of check in paddy field. Maturing time was similar to check cultivar ‘Yuyeon’ as June 4 in upland and May 31 in paddy field. ‘Youhan’ also showed better winter hardiness, the resistance to lodging and disease than those of check cultivar. The average forage dry matter yield in the regional yield trial was about 12.6 and 12.0 ton ha-1 in upland and paddy field, respectively, which were 6%, 5% higher than that of the check. It also showed 7.3% of crude protein, 26.8% of ADF(Acid Detergent Fiber), 47.8% of NDF(Neutral Detergent Fiber), and 67.7% of TDN(Total Digestible Nutrients), including higher grade of silage quality for whole crop barley. Fall sowing cropping of ‘Youhan’ is recommended only in areas where average daily minimum mean temperatures in January are higher than -8°C, and it should not be cultivated in mountain areas of Korea.