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OECD 회원국의 녹색지수 측정을 통한 녹색정책방향 도출
오동현,이윤준 한국환경경제학회·한국자원경제학회(구 한국환경경제학회) 2012 자원·환경경제연구 Vol.21 No.3
최근 들어 녹색성장에 대한 관심이 전세계적으로 높아지고 있다. 한국의 정책또한 녹색을 키워드로 삼아 정책의 방향성을 설정하고 있는 상황이다. 본 연구는 한국의 녹색지수를 OECD 회원국과 상호 비교하여, 한국의 녹색현황과 향후 정책방향을 설정하는 것을 목적으로 삼는다. 정량분석 결과, 한국의 녹색지수는 OECD 회원국의 평균에 비해 상당히 낮은 것으로 평가되었으며, 향후 효율적인 녹색정책을 개발하기 위해서는 영국을 벤치마크 삼아야 함을 보여주었다. 방대한 자료를 사용하여 녹색지수를 개발하여 국별 상호비교를 수행했다는 점에서 본 연구의 기여도를 찾을 수 있다. As the global concerns focus on the sustainable growth, the green growth has been one of key words for the Korean government`s policy trajectory. This study measures the green index for OECD countries in order to gauge and diagnose the current status of the green growth policy for Korea. The empirical results tell us that Korea`s green index is relatively small and it needs to benchmark UK for improving her green policy. The contributions of the current study are to use a large set of data for green growth and to result in quantitative empirical results.
오동현,박지은,이언숙,오상우,조성일,장숙랑,백현욱 대한내과학회 2012 The Korean Journal of Internal Medicine Vol.27 No.4
Background/Aims: Falls among older people are a major public health problem and may result in fracture, medical complications that require hospitalization, and fear of additional falls. Given the prevalence and impact of the fear of falling again, reducing the incidence of falls is important to prevent additional falls. This study analyzed whether exercise programs decrease the fear of future falls in elderly patients who have fallen previously. Methods: A randomized controlled study was performed that included 65 elderly community-dwelling subjects who had fallen in the previous year. Subjects were randomized into two groups: an exercise group (EG, n = 36) and a control group (CG, n = 29). The EG participated in three exercise sessions per week for 12 weeks. Muscle strength, balance, agility, flexibility, and muscular endurance were measured at baseline and after 12 weeks. Results: After the 12-week exercise program, the subjects in the EG demonstrated remarkable improvement in their walking speed, balance (p = 0.003), back strength (p = 0.08), lower extremity strength (p = 0.004), and flexibility (p < 0.001). When asked whether they were afraid of falling, more participants in the EG than in the CG responded “not at all” or “a little.”Conclusions: The 12-week exercise program described here reduced the fear of falling (p = 0.02). It also improved the balance, flexibility, and muscle strength of the participants and was associated with improved quality of life.
Photobacterium leiognathi 리보플라빈 생성효소 단백질 변이체의 제조, 정제 및 효소 활성도
오동현,임선주,이상기,윤현지,이찬용 한국미생물학회 2021 미생물학회지 Vol.57 No.3
Riboflavin synthase binds two molecules of 6,7-dimethyl-8- ribityl lumazine as substrate to produce one molecule of riboflavin and pyrimidine derivative. The peculiar structural characteristic of riboflavin synthase is the internal amino acid homology between N-terminal domain half of riboflavin synthase (N-RS) and C-terminal domain half of riboflavin synthase (C-RS). To generate the variant proteins of riboflavin synthase, the recombinant plasmid of pQE vector inserted the DNA coding for N-RS and C-RS from the bioluminescent bacteria of Photobacterium leiognathi were constructed by polymerase chain reaction. The variant riboflavin synthase genes in pQE vector were expressed in Escherichia coli, and the purified whole riboflavin synthase (W-RS), N-terminal domain half of riboflavin synthase (N-RS), and C-terminal domain half of riboflavin synthase (C-RS) were assayed and determined the Km value and Vmax values. The Km values of W-RS, N-RS, and C-RS was 2.7 μM, 3.2 μM, and 1.9 μM, respectively. The Vmax value of W-RS was 2.5 t imes higher than that of N-RS and 4 times higher than that of C-RS. 리보플라빈 생성 효소는 두 분자의 6,7-dimethyl-8-ribityl lumazine과 결합하여 리보플라빈과 피리미딘 유도체를 생 성물로 전환시킨다. 리보플라빈 생성 효소는 아미노 말단 절 반 및 카르복시 말단 절반 사이에 자체 아미노산의 상동성을 갖는 특이한 구조적 특징을 갖는다. 본 연구에서는 아미노 말 단 절반 및 카르복시 말단 절반을 갖는 리보플라빈 생성 효소 변이 단백질을 코드하는 유전자를 중합 효소연쇄 반응으로 증폭시켜 pQE30 벡터에 삽입하여 이 재조합 플라스미드를 대장균에 형질 전환하여 이들 단백질들을 발현하여 정제하 였다. 정제된 전체 리보플라빈 생성 효소(W-RS), 아미노 말 단 절반 영역 리보플라빈 생성 효소(N-RS), 카르복시 말단 절 반 영역 리보플라빈 생성 효소(C-RS)들의 효소활성도를 비 교하고 Km 및 Vmax 값을 결정하였는 바, W-RS, N-RS, C-RS 의 Km 값은 각각 2.7 μM, 3.2 μM 으로 비슷하였으나 Vmax는 W-RS가 N-RS에 비교하여 2.5배 C-RS 보다는 4배 높은 값을 가졌다.
오동현(Oh Donghyun),유현준(Yoo Hyunjoon) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
Typically, a public housing estate has been had a uniform plan like a city, estate and housing unit. The purpose of this study was to design the new public housing estate through an intermediation to communicate between city, estate and housing unit. As analyzing the housing type through references about intermediation space and antecedent studies about public housing estate, we draw up plans for an extension to the space by using an intermediation. In the 1960s, housing shortage was happened by the economic growth and population growth so that the public housing estate with the bulk housing type has been suggested. A public housing estate showed a disconnection between city space and life space because the public housing estate has set up the only life space without consideration of outside conditions (situations). Thus, the change of the public housing estate is required. In this study, we proposed the new housing space that is possible to communication between life space and city.