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김대연 한국정책분석평가학회 2017 정책분석평가학회보 Vol.27 No.4
시장에서 발생하는 부작용인 기업의 독과점, 가격담합 등의 불공정경쟁을 해소하기 위해, 정부는 시장에 대한 규제를 통해 시장질서의 확립 및 소비자의 권익을 보호할 수 있다. 하지만 규제의 형성과정에 있어 시장에 대한 정보가 부족하거나 이익집단의 포획현상이 발생하게 되는 경우 규제는 본래의 기능을 수행하지 못하고 오히려 공정경쟁구조를 저해하거나 소비자의 권익을 침해할 여지가 있다. 2014년 10월 시행된 단말기유통법은 통신시장의 유통구조 개선 및 이용자의 권익보호를 위해 정부부처가 주도하여 형성한 법률이다. 하지만 본래의 취지와는 다르게 이동통신사 및 제조사 간 자유경쟁을 저해하고 소비자의 후생에는 더욱 부정적인 영향을 미쳤으며, 시행 3년차까지 24건에 달하는 개정안이 발의되는 등 사회적 혼란을 발생시켜왔다. 따라서 본 연구는 단말기유통법의 형성과정 및 시행 이후의 사회적 영향을 살펴보고자 우선 정책형성과정을 3시기로 구분하여 각 시기별 주요 이슈 및 행위자 간 관계에 대해 분석을 시도하였으며, 형성과정에서 발생한 주요 행위자의 영향력과 현재 계류 중인 개정안의 내용 간 관계, 그리고 시행 당시부터 현재까지의 사회적 영향력을 파악하였다. 분석결과, 단말기유통법 형성과정에서 특정 행위자의 포획현상이 발생하였고, 이로 인해 수정된 법률이 시행됨에 따라, 규제의 본래 목적이 제대로 달성되지 않은 규제의 역설 현상이 나타났음을 확인하였다. To resolving unfair competition such as monopolies and price cartels in the market, the government can establish market order and protect the rights and interests of consumers through the regulation of markets. In the process of regulatory formation, however, a lack of information or the capture of interest groups may occur, which might hinder a fair competition structure or infringe rights and interests of the consumers. The Act of Mobile Device Distribution Improvement enacted in October 2014, led by regulatory bodies, its goal was to improve a distribution structure of the mobile market and to protect rights of consumers. However, unlike the intention, it undermined free competition of mobile handset actors, negatively affected the welfare of consumers, and brought about 24 revised bills to the third year of implementation. Therefore, the purpose of this study is to analyze the formation process of the Mobile Device Distribution Improvement Act, and its effects on society after implementation. First of all, to find the relations between issues and actors, I classified the policy formation process into three periods. Then, I have identified the influence of major actors in each period, the relationship between the contents of current pending amendments and the social influence from the time of enforcement to the present. As a result of analysis, it was concluded that the intention of law had not been achieved properly because of the specific actor captured government agencies to blocked the enforcement of institution of separation subsidy, that is to say, the paradox of regulation is occurred.
뇌하수체 종양이 재발된 환자에서 발생한 접형동 소세포암종 1예
김대연,김상준,박민경,배우용 대한비과학회 2021 Journal of rhinology Vol.28 No.2
Small cell carcinoma (SmCC) is a type of neuroendocrine tumor commonly originating in the lung, with only about 2-4% of cases arising at extrapulmonary sites. Extrapulmonary SmCC of the head and neck has a poor prognosis and a high rate of distant metastasis. The paranasal sinus is a rare location for extrapulmonary SmCC and only a few related papers have been published to date. We report a rare case of SmCC originating from the sphenoid sinus in a patient with a recurrent pituitary tumor with a literature review Small cell carcinoma (SmCC) is a type of neuroendocrine tumor commonly originating in the lung, with only about 2-4% of cases arising at extrapulmonary sites. Extrapulmonary SmCC of the head and neck has a poor prognosis and a high rate of distant metastasis. The paranasal sinus is a rare location for extrapulmonary SmCC and only a few related papers have been published to date. We report a rare case of SmCC originating from the sphenoid sinus in a patient with a recurrent pituitary tumor with a literature review.
김대연 한국비교사법학회 2003 比較私法 Vol.10 No.2
This study aims to describe a statutory limitation and elimination of corporate directors' liability in USA, Japan and Korea. The Korea Commercial Code(KCC) article 400 is prescribing to get all shareholders' agreement in directors' liability elimination. But this article is possibility to collide with other regulation of KCC as well as less effectiveness entirely. Today, Several advanced nations including the United States of America and Japan keep substantive regulation that limits director liability to protect directors. therefore, It is desirable that should revise regulation about liability exemption to protect director in our commercial law. Revision contents are as following. Directors' liability elimination must do to receive not all shareholders' agreement but the resolution of special shareholders' meeting and, also should be revised for direction that except in liability elimination about violation of law by knowing or gross mistake.
김대연,이윤정,이정균,구남인,김정규 한국환경농학회 2008 한국환경농학회지 Vol.27 No.1
A greenhouse experiment was conducted to investigate the role of the arbuscular mycorrhizal (AM) fungus, Glomus mosseae (BEG 107) in enhancing growth and arsenic (As) and phosphorus (P) uptake of white clover (Trifolium repens) and evening primrose (Oenothera odorata) in soil collected from a gold mine having concentrations of 381.6 mg total As kg-1 and 20.5 mg available As kg-1. Trifolium repens and O. odorata are widely distributed on abandoned metalliferous mines in Korea. The percent root colonization by the AM fungus was 55.9 % and 62.3 % in T. repens and O. odorata, respectively, whereas no root colonization was detected in control plants grown in a sterile medium. The shoot dry weight of T. repens and O. odorata was increased by 323 and 117 % in the AM plants compared to non-mycorrhizal (NAM) plants, respectively. The root dry weight increased up to 24 % in T. repens and 70% in O. odorata following AM colonization compared to control plants. Mycorrhizal colonization increased the accumulation of As in the root tissues of T. repens and O. odorata by 99.7 and 91.7 % compared to the NAM plants, respectively. The total uptake of P following AM colonization increased by 50% in T. repens and 70 % in O. odorata, whereas the P concentration was higher in NAM plants than in the AM plants. Colonization with AM fungi increased the As resistance of the host plants to As toxicity by augmenting the yield of dry matter and increasing the total P uptake. Hence, the application of an AM fungus can effectively improve the phytoremediation capability of T. repens and O. odorata in As-contaminated soil.
김대연,홍민정,장지희,서용원 한국유전학회 2012 Genes & Genomics Vol.34 No.5
Environmental stresses such as drought, salinity, cold, and heat negatively affect the growth of plants and productivity of crops. The mechanism of salt tolerance is one of the most important fields in plant science, and our understanding of this process must be improved in order to increase agricultural crop production. In our study, we identified salt stress-responsive transcripts using the cDNA-AFLP technique. The obtained transcripts were further analyzed by semi-quantitative reverse transcriptase-polymerase chain reaction (RT-PCR) under various abiotic stresses and hormone treatments. Among 87 transcript-derived fragments (TDFs) that were classified based on their presence or absence (qualitative variants) or differential expression (quantitative variants), we identified 32 TDFs that corresponded to Brachypodium genes with locus name. These clones are involved in various molecular functions and have transferase, protein binding, nucleotide binding, transporter,protein kinase, catalytic, hydrolase, RNA binding, and enzyme regulation activities. Further, the expression patterns of up-regulated 9 salt stress-response genes in cDNA-AFLP experiments were evaluated through semi-quantitative RT-PCR. Those genes were involved in signaling cascades [the casein kinase I (CKI)-like protein], regulation of enzyme activity [protein phosphatase 2C (PP2C) gene], phospholipid asymmetry [aminophospholipid ATPase (ALA)], cellular ion homeostasis [calcium-transporting ATPase, potassium transporter,calcium-binding protein (CBP)], and plant growth and development [pentatricopeptide repeat-containing protein (PPRP),2-oxoglutarate (2OG) and Fe(II)-dependent oxygenases] and the putative roles of the identified TDFs involved in salt stress mechanisms are discussed. A better understanding of the mechanisms of salt stress tolerance and salt stress response genes in Brachypodium would be very useful for the breeding and genetic engineering of salt tolerance varieties in other Poaceae families, including wheat, barley, and rice.