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최세림 ( Selim Choi ),김현학 ( Hyun Hak Kim ) 한국항공경영학회 2021 한국항공경영학회지 Vol.19 No.2
본 연구는 우리 정부가 2010년대 중반부터 추진한 항공 정비산업(Maintenance, Repair and Overhaul, MRO) 육성정책의 효과를 일자리를 중심으로 분석하였다. 우리나라 항공 MRO산업은 2010년대 저가 항공사의 가파른 성장으로 인해 국내 수요가 급성장하였지만, 산업으로써의 MRO 육성정책의 부재로 인해 수입에 크게 의존해오고 있었다. MRO산업은 노동집약적인 동시에 첨단산업이어서 고부가가치 산업이자 고용 창출에 효과적인 산업으로 여겨지나, 초기 투자 요구 수준이 높고 수익이 늦게 발생하여 정부의 투자와 적극적 육성정책 없이 성장하기 어렵다. 본 연구에서는 우리나라 MRO산업의 노동시장 현황과 특성을 살펴본 후, 정부에서 제시한 항공 MRO산업 성장 시나리오를 바탕으로 정량적 방법을 사용하여 MRO산업 육성의 일자리 창출 효과를 분석하고 정성적 분석을 통해 시사점을 도출하고자 한다. 그 결과, MRO산업 시나리오별로 17,600~44,400여 명의 고용 창출 효과가 있을 것으로 보이지만, 이를 만족하기 위해서는 필수 투입 요소인 항공 정비 숙련인력의 공급이 원활히 성장할 수 있는 환경구축이 필요하다. 코로나-19로 인한 항공산업의 위축은 항공 MRO 산업에 부정적인 영향을 미쳤지만, 추후 회복할 항공 수요를 대비해서 인력 육성에 시간이 드는 MRO 인력의 확보는 현재부터 필요하다. This study analyzed the effects of the aviation maintenance industry (Maintenance, Repair and Overhaul, MRO) promotion policy implemented by the Korean government in the mid-2010s, focusing on jobs. Korea’s aviation MRO industry saw rapid growth in domestic demand due to the rapid growth of low-cost carrier in the 2010s, but has been heavily dependent on imports due to the lack of a policy to foster MRO as an industry. The MRO industry is considered to be a high value-added industry and an effective job creation industry as it is both labor-intensive and high-tech. However, the break-even point occurs relatively late (at least 10 years) compared to the size of initial fixed capital input, so the government’s investment and active fostering It has the characteristics that it is impossible to form and grow spontaneously without policy. Using a quantitative method based on the growth scenario of the aviation MRO industry suggested by the government, we analyzed the job creation effect of fostering the MRO industry. As a result, it is expected that there will be an effect of creating jobs for 17,600~44,400 people for each MRO industry scenario, but in order to satisfy this, it is necessary to establish an environment in which the supply of skilled aviation maintenance personnel, which is an essential input, can grow smoothly. The contraction of the aviation industry due to COVID-19 had a negative effect on the aviation MRO industry, but it is necessary from now on to secure MRO manpower that takes time to nurture manpower in preparation for aviation demand that will recover in the future.
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녹두의 Vitexin이 비만전구세포에서 세포분화 및 아디포사이토카인 분비능에 미치는 영향
위해리(Haeri Wi),최문지(Munji Choi),최세림(Selim Choi),김애정(Ae-Jung Kim),이명숙(Myoungsook Lee) 한국식품영양과학회 2012 한국식품영양과학회지 Vol.41 No.8
Obesity is an important issue worldwide as it may associated with increased prevalence of metabolic diseases. Mung bean is known as a functional food for decreasing the glycemic index and lipid profile of plasma. The purpose of this study was to investigate the anti-obesity effects of vitexin from mung bean on the regulation of adipocyte differentiation and adipocytokine secretion. When 3T3-L1 adipocytes were treated with vitexin from days 0 to 14 at various levels of 25, 50, 100, and 200 μM, there was no change in cell viability. Vitexin treatment at 50, 100, and 200 μM decreased triacylglycerol levels in cells, but only 100 μM vitexin induced lipolysis. At 200 μM of vitexin, phosphorylation of p38 and ERK, which causes secretion of inflammatory adipocytokines, was depressed, whereas there was an increase in expression of PPARγ, the key regulator of adipocyte differentiation. Phosphorylation of AMPK increased at 100 μM vitexin. TNF-α and aP2 mRNA expression increased at 25 μM vitexin, whereas only TNF-α mRNA expression increased at 200 μM vitexin. Further, the mRNA levels of TNF-α and aP2 decreased at other concentrations in a dose-dependent manner. Since we observed that mRNA expression of C/EBP, SREBP1, and PPARγ did not change upon vitexin treatment, our future studies will investigate other genes such as mTOR, which is related with apoptosis signaling, or SIRT1, which is associated with inhibition of adipogenesis. Our results indicate that vitexin at concentrations between 100 and 200 μM is suitable in vivo for the development of mung bean as an anti-obesity therapy or functional food.
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