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Analysis of monitoring Road-kill in Odaesan National Park
Sang Jin Lim,Ki Yoon Kim,Woo Chan Lim,Hyeong Woo Ji,Baek Soon Choi,Tae Il Kim,Hyo Nam Kim,Ji Hong Min,Hey Ri Kim,Eui Kyeong Kim,Yung Chul Park 강원대학교 산림과학연구소 2017 강원대학교 산림과학연구소 학술대회 Vol.2017 No.11
We surveyed mammalian roadkill at the National Route 6 (Jin-gogae to Songcheon, 18㎞) and a local road 446 (Odaesan National Park office to Sangwon-temple, 12㎞) in Odaesan National Park. Data of the surveys were analyzed by year, month, and species. Roadkills of 226 individuals were found at the survey areas. Of them, the road-killed 131 mammal individuals, 44 bird individuals, 40 reptile individual and 11 amphibian individuals were found during the survey period. High ratio of the road-kills was observed in mammals than the other animals. Among mammalian species, high ratio of the road-kills was observed in squirrels. There were road-kills of three endangered species, containing otters, yellow-throated marten and leopard cats. According to the analyses of annual road-kills, roadkills of 104 cases were occurred and highly frequent in 2014, following by roadkills of 81 cases in 2015, and then those of 41 cases in 2016. Most ases of the roadkills occurred in summer (June to September). The results will contribute to establishing management for reduction of roadkill in Odaesan National Park.
Analysis of eco-corridor usage status of mammals in Odaesan National Park
Sang Jin Lim,Ki Yoon Kim,TaeJun Lee,Woo Chan Lim,Ji Hong Min,Hyeong Woo Ji,Baek Soon Choi,Tae Il Kim,Hyo Nam Kim,Hee Bok Park,Yung Chul Park 강원대학교 산림과학연구소 2017 강원대학교 산림과학연구소 학술대회 Vol.2017 No.11
We investigated species, ecological pathway type, and mammal size using two eco-tunnels from trail-camera data. The analyses of the camera data showed that 12 mammalian species from 8 families of 5 orders used Jin-gogae eco-corridor (bridge type) and 14 mammalian species from 9 family 5 orders were found at Odaesan eco-corridor (tunnel type). At both eco-corridors, water deer used eco-corridor most frequently, and then secondly racoon dog did. The analyses by mammal size (small, medium, and large) showed that large-sized mammals were found in high ratio at the bridge type of the eco-corridors. In case of medium-sized mammals, utilization ratio of the tunnel-typed corridor was 42%, whereas that of the bridge-typed corridor was 24%, showing 1.8 times higher usage.
Induction of apoptosis by cordycepin via ROS generation in human leukemia cells
Jin-Woo Jeong,Cheol Park,Cheng-Yun Jin,Yung-Hyun Choi,Jae-Dong Lee 한국버섯학회 2009 한국버섯학회지 Vol.7 No.2
Cordycepin (3’-deoxyadenosine) is a polyadenylation specific inhibitor, one of the components of Cordyceps militaris. It has been shown to possess many pharmacological activities including immunologically stimulating, anti-tumor, anti-virus, and anti-infection effects. However, its molecular mechanisms are poorly understood. In this study, the apoptotic effects by cordycepin were investigated in human leukemia cells. Cordycepin treatment inhibited leukemia cells growth a concentration-dependent manner by inducing apoptosis,as evidenced by morphological change and apoptotic cell death such as formation of apoptotic bodies, DNA fragmentation and increased populations of apoptoticsub G1 phase. Induction of apoptosis by cordycepin in leukemia cells were associated with modulation of Bcl-2 member and inhibitor of apoptosis (IAP) proteins expression. Cordycepin also increased ROS generation, activation of caspase-3, caspase-8, caspase-9, cleavage of poly(ADP-ribose) polymerase (PARP), -catenin and phospholipase (PLC)-1 protein. Both the this effect by cordycepin treatment were significantly inhibited by NAC, a ROS scavenger, demonstrating the important role of ROS in the observed cytotoxic effect. This results suggested that cordycepin may be a potential chemotherapeutic agent for the treatment of leukemia patients.
STIELTJES DERIVATIVES AND ITS APPLICATIONS TO INTEGRAL INEQUALITIES OF STIELTJES TYPE
Yung Jin Kim 한국수학교육학회 2011 純粹 및 應用數學 Vol.18 No.1
In the present paper, we obtain integral inequalities involving the Kurz-weil-Stieltjes integrals which generalize Gronwall-Bellman inequality and we use the inequalities to verify existence of solutions of a certain integral equation. Such inequalities will play an important role in the study of impulsively perturbed systems [9].
Determination of Sr-90 in the Vetebrae of Reference Korean
Yung Jin Kim,Gook Hyun Chung Korean Nuclear Society 1984 Nuclear Engineering and Technology Vol.16 No.3
Tri-n-butyl phosphate를 이용한 Sr-90의 정량법에 전처리 과정을 도입시킨 방법을 적용하여 한국인 93명의 척추골내 Sr-90의 함량을 측정하였다. 그 결과 Sr-90의 함량은 여자의 경우 2.29 pCi/g Ca로 나타났고, 남자의 경우 1.73 pCi/g Ca로 나타났으며 남녀 전체적으로 2.01 pCi/g Ca의 평균값을 나타내 외국의 경우보다 다소 높은 값을 나타내었다. 한편 쥐의 복강내에 Sr-90을 주입시켜 각 골조직내의 Sr-90함량을 측정한 결과 주입된 Sr-90은 골조직의 종류에 상관없이 골고루 분포되었으며 주입된 전체 Sr-90의 약 반이 1일 이내에 각 골조직에 침적되었으며 그 이후 점차적으로 제거되는 것을 관찰할 수 있었다. The determination of Sr-90 in 93 Korean vertebrae was carried out using modified method of tri-n-butyl phosphate extraction. As a result, the average content of Sr-90 in Korean vertebrae was 2.29 pCi/g Ca in the female and 1.73 pCi/g Ca in the male and the average level of both sexes was 2.01 pCi/g Ca, which was slightly higher than those of other countries. On the other hand, the Sr-90 injected into intraperitonal cavity of rat was accumulated in bones mostly and distributed evenly to various types of hones. The rate of accumulation and removal was not dependent on the amount of Sr-90 injected and over one half Sr-90 injected was accumulated in bones within one day and then it was removed gradually after two days from the injection.
Amis Aborigine Migrants’ Territorialization in Metropolitan Taipei
Jin-Yung Wu 고려대학교 민족문화연구원 2011 Cross-Currents Vol.- No.1
This paper focuses on the relatively successful experience of territorialization by a group of aborigine migrants in metropolitan Taipei, northern Taiwan. The aborigine migrants of the Amis established a self-built community in a marginal site along the riverbank of northern Taipei that was constantly under the threat of floods and of eviction and forced relocation by the government. But eventually the settlers and the government came to an agreement regarding on-site relocation, and the municipal authority granted special land use rights to the settlers. Several historical processes help explain their success. First, the rising political discourse of Taiwan Independence in the past decade has provided the aborigine migrants with political legitimacy and support. Second, Taiwan’s social activism has been developing rapidly since the 1990s, as its electoral democracy takes shape and matures; the aborigine migrants’ rights to the city were an integral part of this social mobilization. Third, the reinforced identity and solidarity within the community in question helped form a coherent front at the moment of confrontation and negotiation with the government. Finally, a group of professional and progressive planners have been actively involved throughout the territorialization process, acting as planners, brokers and coordinators.
Jin, Yung-Kwon,Kim, Kyo-Youn,Hwang, Hae-Ryong Korean Nuclear Society 1994 Nuclear Engineering and Technology Vol.26 No.4
The loss of water in the carbon steel balls and water region of the end shield for CANDU 6 reactor could lead to significant temperature gradient through the end shield structure which amy result in the excessive deformation. With an assumed end shield drained scenario, the heat deposition rates were calculated through the end shield associated with the central fuel channel during full power operation as an initial step to thermal stress analysis. The drained case was compared with that of water present normal case in therms of heat deposition rater and the total heating throughout the end shield regions. The compared results show that the heat deposition and the total heating remain almost the same between the two cases. It was found that the change of volume integrated flux in the end shield regions due to the loss of water contribute a negligible effect on the heat deposition in this region.