• 제목/요약/키워드: 2005년3

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An Empirical Study on the Network Theory, Economic Structure and Economic Shocks: The Implications on Technology Economics (네트워크이론과 경제구조 그리고 경제충격에 관한 실증연구: 기술경제적 함의)

  • Cho, Sang Sup;Kang, Shin-Won
    • Journal of Korea Technology Innovation Society
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    • v.16 no.4
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    • pp.937-953
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    • 2013
  • The theoretical discussion of generation process and development directions of economic fluctuations are actively discussed. This study describes the economic changes applied to empirical research on economic volatility in Korea under the economic theory of network theory [Acemoglu, et al. 2012, 2010]. For the three years in 2000, 2005, and 2010, the network analysis were applied to industry input-output tables. The research results show that the network economic structures in Korea is shifted from a high connectivity among sectors to a lower connectivity. Also, the impact of key industries and the mutual connectivity of input and out among industrial sectors are weaken. Implications for industry and technology policy are derived form the study results.

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Measurement and Modeling of Vegetation Loss in the Frequency Range of 1~6 GHz (1~6 GHz 대역 수풀 손실 특성 측정 및 모델링)

  • Han, Il-Tak;Jung, Myoung-Won;Back, Jung-Ki
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
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    • v.18 no.1 s.116
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    • pp.96-104
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    • 2007
  • Currently, there is a lack of suitable prediction model and measurement data for vegetation loss. So in this paper, vegetation loss measurement has been performed for seven different tree-species, including dawn-redwood tree, plane tree, pine tree and hymalaya cedar in the frequency range of $1.0{\sim}6.0\;GHz$, for the two years, from 2005 to 2006 years. And then, extraction and revision for the proposed RET model input parameters in ITU-R P.833 has been performed. The key results of measurement and RET modeling has been presented in this paper. The results of this study have been adapted for ITU-R recommendation at the ITU-R meeting in 2005 and 2006.

The effects of shortened dexamethasone administration on remission rate and potential complications during remission induction treatment for pediatric acute lymphoblastic leukemia (급성림프구성백혈병 환아의 관해유도 치료 중 덱사메타손 투여기간의 단축이 관해유도율 및 합병증 발생에 미치는 영향)

  • Lee, Jae Wook;Lee, Kwang Hee;Kwon, Young Joo;Lee, Dae Hyoung;Chung, Nak Gyun;Jeong, Dae Chul;Cho, Bin;Kim, Hack Ki
    • Clinical and Experimental Pediatrics
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    • v.50 no.12
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    • pp.1217-1224
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    • 2007
  • Purpose : Due to its high potency against leukemic blasts, our institution has opted for the use of dexamethasone during acute lymphoblastic leukemia (ALL) remission induction, but in our most recent treatment protocol, CMCPL-2005, we shortened the length of steroid treatment from 4 to 3 weeks. We compared both the rates of remission induction and significant complications observed during induction with CMCPL-2005, with those noted for our previous protocol, CMCPL-2001. Methods : We retrospectively reviewed the records of patients diagnosed with ALL from January, 2001 to December, 2006 at the Department of Pediatrics, St. Mary's Hospital, the Catholic University of Korea. Data concerning age, sex, WBC count at diagnosis, immunophenotype, cytogenetic traits, and risk group were collected for each patient. Results of remission induction treatment were compared between the two patient groups. Infection and other major complications resulting from treatment were investigated according to NCI toxicity criteria. Results : A total of 141 and 88 patients received remission induction under CMCPL-2001 and CMCPL-2005 respectively. In the CMCPL-2001 group, 136 (96%) achieved complete remission while 82 (93%) achieved CR in the CMCPL-2005 group. Patients in the CMCPL-2005 group were more likely to undergo remission induction without experiencing major complications. However, with regards to steroid related toxicities such as infection, no significant differences were noted. Conclusion : We shortened the length of steroid administration from four to three weeks, yet found the remission induction rate to be comparable to that of our previous regimen. However, rates of steroid related toxicities such as infectious complications remain unchanged despite shortened exposure to dexamethasone.

Review of the three Proposed Framework Acts on Water Management (국회에 발의된 3가지 물관리기본법안의 비교검토)

  • Park, Sung-Je;Kim, Jae-Joon;Ryu, Si-Saeng;Lee, Jong-Keun
    • Proceedings of the Korea Water Resources Association Conference
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    • 2010.05a
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    • pp.425-429
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    • 2010
  • 우리나라에서 물관리체계를 개편하려는 노력은 오랜 역사를 가지고 있다. 물관리기본법의 추진은 1990년대 후반기의 입법부(1997년), 2000년 전반기의 시민사회(2000년~2004년), 2000년대 후반기의 행정부(2005년~2008년) 주도로 국회에 상정하였으나 실패하였다. 그러나 2009년 정치권인 입법부에서 3명의 국회의원이 물관리기본법안을 각각 대표발의를 하였다. 국회에 발의된 3개의 물관리기본법안은 기존 물관리체계의 행정적, 업무적 비효율을 개선한다는 점에서 동일한 시각에서 접근하였다. 또한 기후변화에 대한 능동적인 대응과 지속가능한 발전, 그리고 삶의 질 향상과 같은 다양한 요구를 수용하고자 하는 노력을 확인할 수 있다. 본 연구의 목적은 18대 국회에 발의된 3가지 물관리기본법안에 대한 심층적인 비교검토를 통하여 논리적인 장단점을 분석하는 것이다. 이를 위하여 3가지 법안별로 유사점과 차이점을 분석하고 통합물관리의 이론에 입각한 방향성을 파악하였다. 물관리체계의 개편은 단순히 행정조직의 구조개편이 아닌 통합물관리라는 큰 틀(big picture) 속에서 재구성되어야 한다. 본 연구에서 파악한 3가지 물관리기본법안에 대한 비교검토는 우리나라에서 미래지향적이고 효율적인 물관리구조를 조기에 정착시키는데 큰 기여를 할 것이다.

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Three New Records of Antipatharia (Anthozoa: Ceriantipatharia) from Korea (한국산 각산호류(산호충강: 꽃말미잘아강)의 3미기록종)

  • Moon Hye-Won;Song Jun-Im
    • Animal Systematics, Evolution and Diversity
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    • v.21 no.2
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    • pp.259-272
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    • 2005
  • The antipatharians in Korea were known with three species and two genera belonging to family Antipathidae. In the present study, three species, Antipathes densa, A. grandiflora, and A. dubia, have been newly recorded to Korean antipatharian fauna with the samples collected from Jeju-do during the period from 2003 to 2005. The description was mainly based on the habitat, the branching mode of corallums, the size and arrangement of polyps and spines on the axis, and also the types of cnidae. They had three kinds of cnidae: spirocyst, basitrich, and microbasic p-mastigophore. Spirocysts and basitrichs were distributed at tentacles and microbasic p-mastigophores were mainly at septal filaments.

A Study on Formation and Dissolution of Ownership Restriction System within Newspaper Act (신문법 내 소유규제 제도의 형성과 해체에 관한 연구)

  • Lee, Yong-Sung
    • Korean journal of communication and information
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    • v.56
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    • pp.71-85
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    • 2011
  • This thesis reviews the process in which the regulation systems against ownership concentration of newspapers established with the opportunity of legislation of the periodical act in 1987 was reinforced as they were all amended to the newspaper act in 2005 and as they were again amended in 2009 it came to confront crisis in the aspect of press law legislation history. The regulation systems against ownership concentration of newspapers established based on the principle of legality of newspaper function in the Clause 3, the Article 21 of Constitution was reinforced as the newspaper act in 2005 and in 2006 they began to shrink following the Constitution Court decision against newspaper act. As newspaper act and broadcast act are revised in 2009, regulation against combining the management of newspapers with broadcast and regulation against owning multiple number of newspapers came not to exist. Because in this process, the opposition party also allowed limited cross-ownership of newspaper and broadcast, it can be said that the system of newspaper ownership regulation confronted the crisis of dissolution. The instruction of regulation alleviation in a short period of time in spite of the fact that regulation alleviation which allows cross-ownership of newspaper and broadcast is the matter of policy that should be decided after long-term review of the change of media environment and the progress of the power of domination of public opinion is dangerous. Newspapers are strong media with terrestrial broadcast in formation of public opinion on politics. It's because it is difficult to ignore the worry that the power of domination of public opinion of the newspapers which are in oligopoly of newspaper public opinion market can be spreaded to the territory of report broadcast. From the point of view that there is probability for democracy to be ultimately threatened due to the shrink of political Darwinism caused by concentration of media ownership, the alleviation of ownership concentration of newspapers should have premise of long-term social discussion.

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A Study on Centralization of the Korean Film Market : Focusing on the Supply and Consumption of the Top 100 Movies (한국 영화시장의 집중화 현상에 대한 논의 : 흥행영화의 공급과 소비를 중심으로)

  • Park, Seung-Hyun;Lee, Pu-Reum
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.6
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    • pp.109-124
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    • 2020
  • This study examines the concentration in terms of supply and consumption in the Korean movie market, focusing on screen size, nationality, and the box office. For analysis, it selects the top 100 movies in the box office each year for 15 years from 2005 to 2019. According to the result, the number of screens increased steadily every year, and the screen concentration became very high. For the top 100 movies, it increased from 12% to 30% of the total screen. It became higher in the case of the top 10 movies. As the number of screens increased, multiplex assigned more screens to one movie. Multiplex's screen allocation continued to increase, with one movie taking up more 60% of the total screen. This became more serious after 2011 and 2012. Market share of the top 100 movies accounted for about 95% of the total box office performance, even though the number of released movies is about 3,000. Whether multiplex preferred Hollywood movies or not, its screen assignment was found to favor Hollywood movies over Korean ones. In the case of film nationality, both Korean and Hollywood movies accounted for 90.7%. Two countries had a market share of 96.6%. There was no single side except Korea and the United States in the top 10. The increase in the number of screens deepened the concentration in screen allocation. The concentration in the screen allocation led to the concentration of consumption. The Korean film market is the case where the increase of movie screens did not create a diversity of supply and consumption. It also did not affect the diversity of film nationality. This research reveals that supplied concentration and consumed concentration are positively correlated, and that the former is a little lower than the latter.

The Improvement Effect of Pinus densiflora Forest Disturbed by Human Trampling in the Solbat Neighborhood Park, Gangbuk-gu, Seoul (서울시 강북구 솔밭근린공원 소나무림 답압 피해 개선사업 효과 연구)

  • Kwon, Ki-Young;Han, Bong-Ho;Park, Seok-Cheol;Choi, Jin-Woo
    • Journal of the Korean Institute of Landscape Architecture
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    • v.40 no.5
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    • pp.148-159
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    • 2012
  • The purpose of this study is to validate the effect of improvement such measures as fence installation or planting of bush and herbaceous plants taken from Pinus densiflora forest in Solbat Neighborhood Park in Seoul, which was damaged by stamping. The study was conducted in 2005 and 2010 in order to analyze changes in planting types, planting structure of Pinus densiflora forest, soil hardness, cross-sectional structure of soil, and physicochemical characteristics of soil. It was also measured by the growth of the branches and the diameter of Pinus densiflora, comparing before and after the improvement to study the effect of restoring Pinus densiflora forest damaged by stamping. When it comes to a change in planting type, Pinus densiflora forest without underlay was reduced from 48.5% in 2005 to 6.8% in 2010. Pinus densiflora forest with bush and herbaceous plants was increased dramatically from 7.4% to 46.8%. Regarding planting structure, in most area of the subject site, Pinus densiflora forest without under layer was transformed into the one with bush and herbaceous plants including Rhododendron mucronulatum, Rhododendron schippenbachii, Hemerocallis fulva, Aceriphyllum rossii, Hosta plantaginea growing in a wide area. The soil in the Solbat Neighborhood Park was very stiff with soil hardness of $54.8kg/cm^2$ in average. After the improvement efforts made in the Park in 2010, the soil hardness was mostly less than $4kg/cm^2$, being in a good condition with little influence on the growth of plants. When it comes to the cross-sectional structure of soil, litter layer didn't exist in 2005 because of stamping and the organic matter layer was only 1.0cm thick, which provided an unfavorable condition for plant growth. However, after improvement, litter layer was formed up to 3.0cm and thickness of the organic matter layer also went up to 1.5~8.0cm in 2010 because the damage from stamping was reduced. Concerning the physicochemical characteristic of soil, in 2005 soil showed pH 5.76~6.70, organic matter content 7.15~10.55%, and available phosphorus 9.38~26.47mg/kg, having no big problems as a soil environment for growth of Pinus densiflora. 15 trees of Pinus densiflora were selected to see branch growth and it was found that the branches tended to grow better after improvement. 70 trees of Pinus densiflora from various grades of soil hardness also were selected to identify changes of diameter growth. In most cases, it was analyzed that Pinus densiflora grew better after improvement. After conducting this study, it was validated that such measures as fence installation or planting of bush and herbaceous plants to restore Pinus densiflora Forest damaged by stamping were effective in improving growth of Pinus densiflora.

3GPP 표준 로드맵 및 LTE 기술 개요

  • Lee, Hyeon-U;Ji, Hyeong-Ju
    • Information and Communications Magazine
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    • v.25 no.9
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    • pp.3-8
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    • 2008
  • 본고에서는 1998년 말부터 시작된 3GPP의 표준인 WCDMA, HSPA 및 LTE로의 진화 로드맵을 알아보고, 특히 최근의 중점 이슈인 LTE에 대한 추진 배경, 일반적 요구사항 및 기술적 요구사항의 개요에 대해 알아본다. LTE는 2004년 말에 필요성이 제기되어 2005년부터 본격 추진되었고 2008년 말이면 무선접속 분야는 표준이 거의 완료될 전망이다. 과거 WCDMA 에서 HSPA로 진화 시 호환성을 고려해서 조심스럽게 접근했던 것과는 달리 LTE에서는 호환성의 제약을 받지 않는 완전히 새로운 표준을 지향하여, 단순하면서도 효율적이고 유연한 기술표준을 목표로 작업이 수행되어 왔다. 무선통신 분야의 주류 기술이 되고 있는 OFDM, MIMO기술을 바탕으로 LTE기술은 Vodafone, Verizon, NTT DoCoMo등 많은 대형사업자로부터 차세대 기술로 선택되고 있으며 2010년경부터 상용화가 예상되고 있다.

The Causative Organisms of Pediatric Bacterial Meningitis: A Single Center Experience from 1996 to 2005 (단일기관에서의 소아 세균성 수막염 원인균 분포 (1996~2005))

  • Lee, Taek Jin;Chun, Jin Kyong;Kim, Dong Soo
    • Pediatric Infection and Vaccine
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    • v.13 no.2
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    • pp.124-129
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    • 2006
  • Purpose : We investigated the causative organisms of bacterial meningitis by age distribution from 1996 to 2005. Methods : Retrospective data were obtained from the medical records with diagnosis of bacterial meningitis or neonatal meningitis from 1996 through 2005. A case was defined by isolation of organism or detection of its antigen by latex agglutination from cerebrospinal fluid. Results : A total of 46 cases(27 neonates and 19 children) were identified. 15 of 27 episodes(55.6%) of neonatal meningitis had a concomitant-positive blood culture. Group B streptococci were the most common bacterial causes of neonatal meningitis(44.4%). Nine of 12 episodes(75.0%) were late-onset infections in neonatal meningitis caused by group B streptococci. 16 of 19 children(84.2%) with bacterial meningitis beyond the neonatal period were younger than 5 years of age(median age, 23 months). Of 19 cases, 8 infections were with Streptococcus pneumoniae, 8 were with Haemophilus influenzae and 3 were with Neisseria meningitidis. Since 2001 there was no case of meningococcal meningitis in this study. Conclusion : In neonates group B streptococci are the most common causative organisms of bacterial meningitis, especially late-onset infections. In infants and young children, the predominant causes of bacterial meningitis are H. influenzae and S. pneumoniae; meningitis caused by the former are likely to decrease after the introduction of the conjugate vaccine for H. influenzae type b.

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