• KDI Journal of Economic Policy
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• v.19 no.4
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• pp.97-158
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• 1997

환경규제가 우리나라 각 산업부문의 국제경쟁력에 미치는 영향을 실증적으로 분석하기 위하여 단순회귀분석과 Heckscher-Ohlin-Vanek-Leamer(HOVL) 테스트를 1993년 부문별 자료에 적용하였다. 회귀분석 결과 일반적인 예상과는 달리 오염배출이 많은 산업일수록 더 큰 비교우위를 가지는 것으로 나타났으며, 이는 우리나라가 다른 나라에 비하여 풍부한 환경자원을 가지고 있음을 의미한다. HOVL 테스트 역시 동일한 결과를 보여주고 있는데, 이 방법에 의하면 우리나라의 전체적인 환경자원 부존량이 다른 나라와 비슷한 수준인 반면, 수출의 많은 부분을 담당하고 있는 제조업부문은 다른 나라에 비하여 환경자원을 풍부하게 사용하고(가지고) 있는 것으로 나타났다. 이러한 결과는 일반적인 인식에서 크게 벗어나고 있는데, 그 이유는 인구밀도나 단위 면적당 GDP 혹은 현재의 환경오염수준 등 몇 가지 간단한 지표를 통하여 볼 때 결코 우리나라가 우리의 주요 무역상대국에 비하여 풍부한 환경자원을 가지고 있다고 할 수 없기 때문이다. 따라서 본 논문의 실증분석결과를 고려할 때, 우리나라의 환경규제수준, 특히 수질규제수준은 환경자원 부존량이 제시하는 수준에 비하여 낮게 책정되어 있으며, 이로 인하여 기업이 느끼는 환경자원의 가용량(可用量)이 늘어나고, 이것이 결국 산업간 비교우위체계를 왜곡한 것으로 판단된다.

• The Korean Nurse
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• v.16 no.4 s.90
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• pp.52-54
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• 1977

현대 공업화의 발전과 공학의 진보로 우리국민은 비교적 풍부하고 조용한 번영의 시기를 30 여년간 향유할 수 있었다. 생활수준이 높아졌고 질병의 주요 원인이 급성 전염병에서 뇌졸중병, 악성종양사고 및 심장병 같은 만성상태로 변했다. 일반적으로 사람들에게 정보가 잘 들어가고 있으며 건강한 생활을 유지하는데 유용한 많은 자원을 발견하고 있다. 우리가 살고 있고 유용한 전문인으로서 인류에게 봉사하고 있는 문화속에서 우리는 건강한 생활을 유지하는 민속법을 무시해서는 안 된다. 사회는 간호전문직에게 건강관리를 맡겼다. 따라서 우리는 책임수행에 있어서 하나라도 남겨 놓은게 있어서는 안 된다. 우리의 가까운 주위를 관찰하고 들어 봄으로써 우리는 타인의 건강욕구에 좀더 민감하고 세심해질 수 있다. 우리가 서양의 과학원칙을 간호실제에 적용시키고 있지만, 동양의 보다 더 내향적이고 완전한 생활방법도 역시 우리의 유용한 전문직의 가능성을 풍부하게 하고 확장시키는데 적용될 수 있다. 새로운 것과 오래된 것의 연속성이 계속 되야 하며, 고객을 도와주면서, 우리는 현재의 새로운 농작물을 경작하여 미래의 유용한 성숙된 농작물로 키울 수 있다. 우리의 전문적인 생활과 고객의 생활을 풍부하게 해줄 수 있는 유용한 자원이 많이 있으며, 우리의 문화적 환경에서 성취할 수 있는 귀중한 자원을 그냥 지나칠 순 없다. 우리는 지금 여기서 행동해야 한다.

• Investigative Magnetic Resonance Imaging
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• v.13 no.1
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• pp.81-87
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• 2009

Purpose : We sought to evaluate enhancement of plaque with gadolinium-based contrast agent by magnetic resonance imaging (MRI) in comparison with histopathology, namely lipid-rich and macrophage-rich components that were two representative characteristics of plaque vulnerability using atherosclerotic rabbit aorta in order to determine which histopathologic component is relevant to the enhancement. Materials and Methods : New Zealand white rabbit (n=4, weight 3.0 to 3.5 kg, all male) was used for animal model of atherosclerosis. Atherosclerotic aortic lesions were induced by high-cholesterol diet and double balloon injury. T1-weight axial images were acquired before and after gadolinium-based contrast agent using a 3-T MRI. MR images and the matched histopathological sections (n=35) were divided into 4 quadrants or 3 (n=130). Enhancement ratio (ER, ER=SIpost/SIpre) on MRI was calculated for each quadrant and compared with histopathology in regard to lipid-rich and macrophage-rich areas. Results : Lipid-rich quadrants were 72 and fibrous quadrants were 58. The number of quadrants which had macrophage-rich areas was 105 and that of quadrants which did not have macrophage-rich areas was 25. ER was significantly higher in lipid-rich quadrants than in fibrous quadrants (mean ER 2.25c$\pm$0.41 vs. 2.72$\pm$0.65, p=0.013). ER poorly correlated with macrophage-rich areas when lipid-component was controlled (correlation coefficient -0.203, p=0.236). Conclusion : Lipid-rich plaques showed stronger enhancement than fibrous plaques using a standard gadolinium-based extracellular contrast agent. Macrophage infiltration did not correlate with degree of enhancement. Further study is warranted that account for optimal time of imaging after contrast injection using various plaque models from early to advanced stages and all possible parameters associated with contrast enhancement.

• Korean Journal of Environment and Ecology
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• v.22 no.4
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• pp.420-426
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• 2008

This study compared and analyzed EPT ratio, EPT richness and EPT number(number of species and individuals) of a total of 9 selected sites individually using EPT-group of aquatic insects in Musim stream, also compared similarity ratio between the sampling sites using UPGMA(Unweighted Paired Group Method using Arithmetic average) based on analysis subsequent to species structure of aquatic insects, and compared and analyzed a functional feeding groups(FFGs) of aquatic insects based on stream order. As a result, the aquatic insect group of 2,269 individuals is classified as 71 species, 36 families, and 8 orders, and EPT ratio and EPT richness at sites 3(0.72 and 3.89, respectively) were found to be relatively higher than those at the other sites; by contrast, those at site 9(0.03 and 0.09, respectively) were relatively low. EPT number of species and individuals was found to be lowest at site 9. As a result of UPGMA analysis, the sampling sites in Musim stream were divided into three groups, including A1(site 1, 7, 8), A2(site 2, 3, 4, 5, 6) and B(site 9). According to the results of FFGs, there was not shown specific difference in the number of functional feeding groups by each sites; however, there appeared a little more shredders and scrappers in the upper and mid stream comparing to other sampling sites while collector-filterers and collector-gatherers were found to be dominant in number in the lower stream. According to this research result, the sampling sites in Musim stream were found to have an effect on not only EPT richness, EPT ratio, and EPT number but also FFGs structure.

• Journal of Environmental Impact Assessment
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• v.27 no.2
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• pp.114-123
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• 2018

For conservation of biodiversity, we designate and manage the major areas that are habitats of organisms as ecosystem protected areas. It is necessary to evaluate the biodiversity of protected areas relatively in order to establish strategies to protect and secure the biodiversity of protected areas. In this study, we selected evaluation indicators by which we can compare objectively the biodiversity of protected areas corresponding to forest ecosystem, and applied them to Mt. Jiri and Mt. Bukhan National Parks. We reviewed literatures to select evaluation criteria. Frequently mentioned criteria and the structure of the forest which plays an importantrole of forest biodiversity were selected as the evaluation criteria. As the result, the selected evaluation indicators were 7-species diversity, species richness, evenness, rarity, disturbance species, indigenous species, and forest structure. In Mt. Jiri and Mt. Bukhan National Parks, species diversity were 3.492 and 2.943, species richness were 8.998 and 9.793, evenness were 0.849 and 0.680,rarity were 11.976 and 10.783, and disturbance species index were 0.214 and 0.357 respectively. Both national parks had abundant indigenous species and showed various forest physiognomies and stable 4-layer structure. It was found that crown density was higher in Mt. Jiri. Most indicators were implied high biodiversity in Mt. Jiri and Mt. Bukhan national parks.

• Korean journal of applied entomology
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• v.58 no.4
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• pp.313-317
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• 2019

Stink bugs (Hemiptera: Pentatomidae) are economically important pests of fruit trees in Korea. The aim of the present study was to survey the relative abundance of stink bugs on four stone fruits, maesil (Prunus mume Sieb. et Zucc), cherry (Prunus avium L.), plum (Prunus salicina Lindl), and peach (Prunus persica (L.) Batsch), from 2017 to 2019 in the field. Four stink bug species were observed, including Carbula putoni (Jakovlev), Dolycoris baccarum (L.), Halyomorpha halys (Stål), Plautia stali Scott. H. halys was the most abundant (65%), followed by P. stali (26%), C. putoni (7%), and D. baccarum (2%). H. halys was the dominant species in maesil, cherry, and peach fruits, whereas P. stali was the dominant species in plum fruits. Most (81%) of the stink bugs observed were adults, with nymphs accounting for only 19% of the observed specimens. More stink bugs were observed during the late season than during the early season. These finding suggest that control strategies should be developed for the management of H. halys and P. stali at harvest in stone fruit tree orchards in Korea.

• Journal of Life Science
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• v.28 no.1
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• pp.105-109
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• 2018

Biodiversity (or biological diversity) is defined as the variability of living organisms, the "diversity of life on Earth," and the complex relationships that make up ecosystems. This study aimed to investigate the spatial and temporal patterns in animal species composition and diversity at the Deukjin River, located in Hapcheon Province, Korea. The fauna community at the Deukjin River during 2016 season was identified with a total of 55 taxa, representing the following six classes: Mammalia (mammals), Actinopterygii (bony fish), Chondrichthyes (cartilaginous fish), Aves (birds), Amphibia (amphibians), Reptilia (reptiles), and invertebrates. The Berger - Parker index (BPI) for mammals varied from 0.233 (Station A) to 0.333 (Station D). The Shannon - Weaver index (H') and two diversity indexes (N1 and N2) for mammals and birds in the upper region were higher than those in the lower region. The values of ${\beta}$-diversity for animals varied from 0.229 for fish to 0.339 for invertebrates. The richness indices for animal taxa also varied among the stations and seasons. Station A showed considerably high richness in mammals, birds, and reptiles/amphibians. Although the richness indices (R1 and R2) for six animal kingdoms during the seasons were different from each other, the difference was not significant (p<0.05). The evenness indices for five animal kingdoms were different from each other, but again, the difference was not significant (p<0.05).

• Korean journal of applied entomology
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• v.48 no.4
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• pp.439-445
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• 2009

Species richness (number of species) of the butterfly community in the Gwangneung forest, Korea, was estimated using data of the long-term butterfly monitoring, which had been carried out 291 times in the Korea National Arboretum or forest area of Gwangneung from 1998 to 2008. Abundance of each butterfly species was monitored using the line-transact method. In the present study, 13,333 butterflies belonging to 112 species were observed. Species accumulation curve and species richness was obtained using a software, EstimateS. The species accumulation curve shows an increase tendency even at 291 survey times, implying the possibility of the presence of a few unfound species. However, values of species richness estimated by the seven estimators were stabilized around 240-250 survey times. Species richness estimated by the estimators ranged from 120 species to 141 species with 128 species in average. However, the figure estimated by the previous studies since 1958 was 148 species. We estimated the reasonable scale of species richness on the base of recent analysis on the change of butterfly species. Species richness of the Korea National Arboretum was higher than that of natural forest and of plantation. However, species richness of butterfly was not different between natural forest and plantation. It is likely that increase of grasslands and habitat diversity in arboretum led to the increase of species richness of butterfly community.

• Applied Microscopy
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• v.38 no.2
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• pp.125-133
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• 2008

Cytochrome-c-oxidase in mitochondria membrane is one of the most important factors for energy generation in the cell. As well as it is electron transfer enzyme, it is also heavily related to the apoptosis and other pathologic conditions. Meanwhile, porin is a protein located in inner and outer membranes of mitochondria, which is assumed to be functionally correlated with cytochrome-c-oxidase. It functions as forming electron transfer chain and conveying ATP. Therefore, using the immune-microscopy, It compared the distribution of cytochrome-c-oxidase and porin to figure out the formation and changes on cytochrome-c-oxidase in mitochondrial cristae. The sarcroplasm of cardic muscle tissue has many mitochondria. They are classified into two groups: the mitochondria with many cytochrome-c-oxidase and the mitochondria with only porins. The mitochondria with porins had few cytochrome-c-oxidases in their membrane; in contrast, the other mitochondria with rich cytochrome-c-oxidase had few porins in their walls. In addition, according to the location of the tissue in bovine heart, distribution of those kind of mitochondria had been clearly separated. As a result, it could be assumed that immature mitochondria has many porins to transfer the protein materials from sarcroplasm through the porins, and they made cytochrome-c-oxidase until it is enough, and then they decreased the porin and maintained minimum number of the porin.

• Journal of the Korean Geographical Society
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• v.47 no.1
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• pp.79-97
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• 2012

This study examines on the impact of biodiversity in circular greenspace of Cheongju city since 2002 greenbelt release. Research has carried out to investigate the biotope pattern change with landscape fragmentation. Major landscape fragmentation has occurred with development of residential sector and build-up of major highways. Settlement has been expanded to the entire area connected to urban district excluding the eastern forest. North-south district shows high road density, where inter-regional roads meet in the cross-section. It is found that landscape fragmentation impact on species richness as well as population size of the species varies depending on the animal species. The birds show high species richness in N2, N3, N4, S2(north-south zone) even with high fragmentation rate. This can be explained that birds can access to aquatic environment where they can find abundant food resources. The amphibians and the reptiles show almost no zonal variation in species richness than the birds. The more a zone fragmented in small patches, the species richness of the amphibians and the reptiles also tends to be declined. Information accumulation on biodiversity for integrating landscape planning in urban planning, various level of community participation in decision making process, and cross border cooperation with neighbouring Cheongwon-gun will be required for sustainable greenspace management of Cheongju City.