• Title/Summary/Keyword: 강화효과

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[6]-Gingerol Attenuates Autophagy and Increases Activities of Antioxidative Defense Enzymes in Mice with Cerulein-induced Acute Pancreatitis (Cerulein 유도 급성췌장염 마우스모델에서 자가분해 조절과 항산화 활성에 미치는 [6]-gingerol의 영향)

  • Kim, Sung Ok;Choi, Yung Hyun
    • Journal of Life Science
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    • v.23 no.10
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    • pp.1280-1287
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    • 2013
  • The current study investigated the effects of [6]-gingerol, a ginger phytochemical, on the expression of autophagy-related genes and the activation of antioxidative enzymes in the pancreas of mice with cerulein-induced acute pancreatitis. The following were studied: pancreatic edema, ${\alpha}$-amylase activity in serum, expression of autophagy genes, activities of antioxidative defense enzymes, such as superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px), and the production of lipid peroxidation (LPO). The results revealed that cerulein-induced edema in the pancreas and ${\alpha}$-amylase activity in the cerulein group significantly increased compared with that of the control. However, that of the [6]-gingerol pretreated group was significantly decreased compared with that of the cerulein-alone injected group (positive control). There was no significant difference compared with that of control. The expression of autophagy-related proteins, including Beclin-1 and cleaved microtubule-associated protein 1 light chain 3, were significantly increased in the positive control but significantly decreased in the [6]-gingerol-pretreated group. Furthermore, the activities of SOD and GSH-Px in the positive control were decreased compared with those of the control. However, those of the [6]-gingerol pretreated group were significantly increased compared with those of the cerulein-alone group. The mRNA levels and antioxidant enzyme activities were similar. The production of LPO in the cerulein with and without [6]-gingerol groups was increased by 133.1% and 26.3%, respectively, compared with that of the control, whereas that of the [6]-gingerol-pretreated group was significantly decreased by 48.5% compared with that of the positive control. Therefore, [6]-gingerol may be a strong candidate in reducing autophagy and LPO production and in enhancing antioxidative enzyme activities to help prevent acute and chronic pancreatitis.

A Study on Korean Security association - In comparison with All Japan Security Service Association - (한국경비협회(韓國警備協會)의 활성화(活性化) 방안(方案) -한일경비협회(韓日警備協會)의 비교(比較)를 중심으로-)

  • Choi, Eun-Ha;Kim, Hak-Bu
    • Korean Security Journal
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    • no.15
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    • pp.317-336
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    • 2008
  • Thus in order to have a better understanding about the KSA(Korean Security association) and to express opinions on its role and security, this paper introduces and discusses about All Japan Security Service Association(AJSSA), which is the prototype of the KSA. There are several positive aspects to consider the introduction of, when these two associations are compared: the traffic security, a supporting member, ex-high-ranking police executive directors practically run AJSSA. These are to enhance financial ability and to promote better relationship with police. KSA needs to improve such relationship and to diversify activities as well. In addition, not just dismissing their duty by giving them the license, AJSSA provides several educations to revitalize the related people so that they can deal in effective and productive services. In another words, JSA perceives it is indispensable to educate the relevant people in the business. In contrast, it is reality that KSA has not put much emphasis on educations. Concisely, the most prompt issue is it should be more beneficial to its members by strengthening itself. Not simply following the example of foreign cases, but putting diverse efforts, KSA can make it substantial and stabilize future private security market in a long term.

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Safety and Risk Management Measures from the Private Security Industry for the Successful Hosting of an International Event (Safety and Risk Management Counter measures for Pyeongchang Winter Olympics) (국제행사의 성공적 개최를 위한 경호·경비 분야의 안전·위기관리 방안 (평창 동계올림픽 안전·위기관리 대응 방안))

  • Kim, Eun-Jung;Wang, Sug-Won
    • Korean Security Journal
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    • no.52
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    • pp.43-70
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    • 2017
  • Terrorist organizations that take advantage of the occasion of international events are changing from targeting specified people to attacking general public, raising the anxiety of the audience and participating countries. Therefore, the host country intends to improve its status as the host by ensuring safety and crisis management at any cost. As a country with a wealth of experience of hosting international events, Korea takes the burden of the security at Pyeongchang Winter Olympics. Consequently, to successfully host this winter Olympics, the organizing committee should bear in mind that Korea is no longer a safe country regarding terrorist attacks and take countermeasures against various crimes and terrorism that may arise during the Winter Olympic Games. This study overviews various measures as follows. First, the change of counter-terrorism strategy is necessary. Second, the safety entity and safety measures for Pyeongchang Olympic Games should be established. Third, private security companies should be actively utilized. Fourth, the safety management training for private security and safety personnel should be strengthened. Lastly, it is necessary to establish a rapid and organic preemptive safety management system to cope with safety and crisis effectively at Pyeongchang Winter Olympics and other international events that will be held in the future.

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Effect of Linseed Oil and Canola Oil Feeding on the n-3 Fatty Acid Content of Pork (아마인유와 채종유 급여가 돼지고기의 n-3 지방산 함량에 미치는 영향)

  • Park, Byung-Sung;Kang, Hwan-Ku
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.33 no.9
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    • pp.1537-1543
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    • 2004
  • The purpose of this study was to determine the effect of dietary linseed oil and canola oil on the deposition n-3 polyunsaturated fatty acid in pork. Twelve pigs weighing 50 kg were offered one of four diets based on corn and soybean meal and containing tallow, linseed oil, canola oil or mixed oil (linseed oil plus canola oil). The pigs were slaughtered at approximately 110 kg of their market live weight. Linseed oil, canola oil or mixed oil did not affect any of the three indicators of growth performance-body weight gain, feed intake and feed efficiency. Saturated fatty acid content of plasma was the highest in tallow oil group, while the plasma proportion of saturated fatty acid was lowered in linseed oil, canola oil and mixed oil group from 11.84% to 16.54% than tallow group (p<0.05). The plasma n-3 polyunsaturated fatty acid was not detected at all in the tallow-fed pigs, while the plasma proportion of n-3 polyunsaturated fatty acid were higher in linseed oil, canola oil and mixed oil from 4.68% to 12.83% than tallow group (p<0.05). All three lipid supplements containing n-3 poly-unsaturated fatty acid increased the content of pork belly $\alpha$-linolenic acid (18:3n-3) by 9.43% relative to the tallow values (p<0.05). Feeding linseed oil or canola oil increased the n-3 : n-6 ratio in pork belly to 0.68, and increased the polyunsaturated fatty acid : saturated fatty acid ratio to 0.70 (p<0.05). This result showed that feeding linseed oil and canola oil can produce novel functional pork enriched in n-3 polyunsaturated fatty acid.

Weight of Role according to Job Position for Hospital Managers (병원경영자의 직위에 따른 관리자의 역할 인식도)

  • Choi, Ryoung;Hwang, Byung-Deog;Park, Jae-Young
    • The Journal of the Korea Contents Association
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    • v.10 no.1
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    • pp.295-304
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    • 2010
  • This study aims to be of help to cope with internal and external circumstances of hospital effectively by analyzing the weight of role for a hospital manager which has been changing. It surveyed 191 top managers and administrators working in a medical institute like hospital located in Busan, Ulsan and Kyungnam area from 20 November, 2007 to 29 February, 2008. The results of this study were as follows: The top manager thought that the role as a leader is the most important role as a manager in present, but the role as an enterpriser is also very important in future, however, they had troubles in the role of a representative which they have carried out in present. In order to overcome the current medical situation that competition is getting keen, it seemed that they expected the role as an enterpriser would be more important in future for competition and organization improvement. The administrator thought the role as a leader is the most important in present, in future and in current performance. It was considered that they recognized the importance of team work, order, goal of the organization, strategies, and information interchange regarding the characteristics of hospital that there are people of various kinds of occupations.

Friction Welding of Ni-Base ODS Alloy Prepared by Mechanical Alloying (기계적 합금법으로 제조된 Ni기 산화물 분산강화 합금의 마찰압접에 관한 연구)

  • 강지훈;박성계;김지순;권영순
    • Proceedings of the Korean Powder Metallurgy Institute Conference
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    • 1994.10b
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    • pp.15-15
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    • 1994
  • M MA ODS 합금의 보다 폭넓용 실용확훌 위해 크게 요구되고 있는 적정 접합기술 개발의 한 방안£로, 마찰압접(Friction Welding) 방법의 가능성옳 조사하기 위하여 마찰압력과 시간, 마 찰 후 접촉압력(Upset Pressure) 풍을 다양하게 변화시켜 접합체톨 제조한 후, 접합체 강도에 대한 인장시험과 접합계연의 결합 및 미세구조에 대한 현미경 관찰, EDS에 의한 원소분석, 접 합이옴부의 경도분포와 파단면 분석 풍율 행하였다. 실험에 사용된 모재는 기계적 합금법으로 제조된 Inca사의 Ni기 MA 754 합금이었으며, 직경 l 10 mm, 길이 50 mm로 가공한 후, 아세통£로 초음파 세척하여 접합에 사용하였다. 접합온 브 레이크식 마찰압접기틀 사용하여 행하였으며, 회전시험편의 회전수는 2400 rpm이었A며, 다른 한쪽의 고정시험편과의 마찰압력 및 마찰시간온 각각 50 - 500 MPa과 1-5초로, 또한 업셋압 력도 50 - 600 MPa로 변화시켰다. 이때 업셋압력은 모든 시편에 대해 일정하게 6초동안 가하 였다. 얻어진 접합체는 각 압접조건 당 2개 이상의 접합시험편에 대해 상온 인장강도톨 측정하 였으며, 파단이 일어난 위치를 확인한 후 파면에 대한 분석율 주사전자현미경(SEM)과 에너지 분산형 분광분석기mDS)릎 사용하여 행하였다. 컵합이옴부의 첩합성올 확인하기 위하여, 접합 체를 접합변에 수직으로 절단, 연마한 후 광학현미경과 SEM, EDS 퉁으로 관찰, 분석하여 접 합부의 형상과 결합형성 여부, 접합계면의 미세조직 퉁옳 조사하였다. 또한 마찰압접에 따론 모재와 접합계연부의 경도분포훌 접합이옴부로부터 모재쪽으로 일정 간격율 두어 마이크로 비 커스 경도기로 측정, 조사하였다. 이상의 설험 결과, 다옴과 같온 결론옳 얻었다. ( (1) 접합체 강도가 모채 강도의 95% 이상이 되는 양호한 렵합체흩 얻기 위한 마찰압력 조건 온, 2400 rpm의 회전속도와 6초의 업셋압력 유지시간에서 마찰압력과 업셋압력, 그리고 마찰시 간이 각각 400 MPa 이상과 500 MPa 이상,2초입율 확인하였다. ( (2) 컵합이옴부의 관찰 결과, 모든 마찰압접 조건에서 컵합이옴부는, 기폰 모재의 texture 조직 을 유지하고 있는 모재부 영역(영역 ill)과 첩합계면부에 인접하여 업셋압력이 주어질 때 단조 효과에 의해 계연 외부로 metal flow가 일어나면서 형성된 영역 II, 매우 미세한 결정립으로 구성된 중앙부의 영역 1 로 이투어져 있옴융 확인하였다. ( (3) 최적접합조건이 충족되지 않온 경우, 접합부의 영역 I 에서 관찰된 void와 균열, 불균일한 접합계면 통의 접합결함에 Al과 Y. Ti 퉁£로 구성된 산화물률이 용집되어 있옴을 확인하였 다-( (4) 접합체의 파단 양상온 크게 접합부 파단과 모재부 파단, 이률의 혼합형 파단i로 나눌수 있었다. 모재부 파단의 경우, 파단면이 매끄럽고 파변상의 결정립도 매우 미세하였으며, 산확물 의 용집도 찾아보기 어려웠 나, 접합부 파단의 경우에는 파변의 굴곡이 비교척 심하고 연성 입계파괴의 형태를 보였£며, 결정립도 모채부 파단의 경우에 비해 조대하였다. 조대하였다.

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Policy Integration as A New Approach of Policy Coordination: The Case of Science, Technology and Innovation Policy (정책 조정의 새로운 접근으로서 정책 통합: 과학기술혁신정책을 중심으로)

  • Seong, Ji-Eun;Song, Wi-Chin
    • Journal of Korea Technology Innovation Society
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    • v.11 no.3
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    • pp.352-375
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    • 2008
  • Recently policy coordination and integration have emerged as core challenges as complexity and uncertainty of policy. Especially as innovation and environment policy is expanding and its position is being further elevated within policy hierarchy, policy integration has emerged as core governance challenges for nation states. OECD countries emphasized the need of coordination and integration of policy by introducing concepts such as 'Environmental Policy Integration', 'the Third generation innovation policy', 'integrated innovation policy'. This study analysed the background, concepts, objects, mechanisms, and major issues of integrated innovation policy and various attempts for integrate innovation policy by policy level and cycle. Developing integrated innovation policies has become increasingly important for the EU and OECD countries in recent years. OECD countries including Finland have developed broader policy agendas for balancing policy objectives and aims of other policy sectors and horizontal relationships with other policy sectors. Policy integration helps to reorient policies where related policies are in conflict and to ensure coherence across different policy areas. Policy integration emphasizes long-term policy adjustment and adaptation based on social agreement and common vision.

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A Study on Necessity and Possibility of Specialized Research Institute for Local Education Autonomy (지방교육자치 전문연구기관의 설립 필요성과 가능성 탐색)

  • Rah, MinJoo;Park, Soo-Jung;Ha, BongWoon;Cha, JiCheol
    • The Journal of the Korea Contents Association
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    • v.19 no.12
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    • pp.141-150
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    • 2019
  • The purpose of this study is to explore the necessity and possibility of establishing a research institute for local educational autonomy where the importance and necessity of institution establishment and operation are increasing with the decentralization and educational autonomy. The necessity of establishing a local educational autonomous research institute was examined in terms of both external and internal necessities, and the possibility of establishment in terms of the form of establishment, financial resources, and legal basis. In order to effectively cope with common issues by leading the nation's educational autonomy policy and legal agenda, and to support regional policy research and development by linking and cooperating with regional educational policy research institutes, local educational autonomous research institutes are established. This is an urgent point. Considering the publicity, professionalism, economic feasibility, and stability of specialized research institutes, the form of foundation corporation seems to be appropriate, and, like the case of specialized research institutes in general local autonomy, legal grounds for the establishment of special law should be prepared. In the future, it is necessary to conduct collaborative discussions and academic discussions with the Ministry of Education and the National Council for Superintendents of Education.

Adsorption Characteristics of Heavy Metal and VOCs of Pyrolysis Char from Organic Waste Sludge (유기성 폐슬러지의 열분해 차르에 대한 중금속 및 VOCs 흡착특성)

  • Park, Sang-Sook;Kang, Hwa-Young
    • Journal of Korean Society of Environmental Engineers
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    • v.27 no.2
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    • pp.130-137
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    • 2005
  • This research programme include investigation of the adsorption behavior of heavy metals and VOCs by Pyrolysis char for using landfill cover material. The volatile potions in the sludge gasified during the pyrolysis period and gave birth to porosity throughout the matrix. The result of the ad/desorption experiment of nitrogen to find out the formation of some pore by the gasification of the volatile matter, we can certify that the pyrolysis char($14.56\;m^2/g$) has increased twice more than the organic wasted sludge($6.68\;m^2/g$) in specific surface area. The pyrolysis char has the adsorption characteristic of medium type of Type II and V in BDDT classification, and showed a little micro pore. In the adsorption experiment of ethylbenzene and toluene, as a result of applying the Freundlich adsorption isotherms, the pyrolysis char was higher in the adsorptivity of ethylbenzene and toluene than the granite and the organic wasted sludge. The results of the heavy metal adsorption test for the char indicated that it had some ability of adsorption. It is suggest that pyrolysis char has some advantages for utilizing as landfill covers because the pyrolysis char can adsorb/absorb hazardous substances from the landfill sites and inhibit the ground water and soil contamination.

Effect of Conjugated Linoleic Acid (CLA) in Growth of Larval Rockfish (Sebastes schlegeli) (CLA 급이가 우럭치어 성장에 미치는 영향)

  • Choi Byeong Dae;Kang Seok Joong;Youm Mal Gu;Ha Yeong Lae
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.35 no.4
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    • pp.315-320
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    • 2002
  • The multifunctional compound such as conjugated linoleic acid (CLA) was used to producing of functional larval rockfish. Artemia, livefoods for larval fish, enriched with highly unsaturated fatty acids (HUFA) and CLA ($0.5\%$, $1.0\%$, $2.5\%$ and $5.5\%$ group) was fed to larval rockfish. Artemia, enriched with $2.5\~5.0\%$ of CLA, negatively affects the quality of larval rockfish. But $1.0\%$ CLA fed group shown to good specific growth rate, feed efficiency, n-3/n-6 PUFA ratio, DHA/EPA ratio and hematology results. The CLA deposited in muscle lipids of larval rockfish was reached 6.57 to $19.69\%$.