• Title/Summary/Keyword: 급성장

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우리나라 생명과학산업의 미래

  • Park, Yeong-Hun
    • The Science & Technology
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    • v.34 no.1 s.380
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    • pp.46-48
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    • 2001
  • 생명과학산업 육성의 의미 - 고부가가치ㆍ환경친화적 특성 커 급성장, 통일 등 국가적 요구 부합하는 전략산업

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과기총9주년의 발자취-과학기술인의 핵심체로 급성장

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
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    • v.8 no.9 s.76
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    • pp.8-10
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    • 1975
  • 한국과학기술계를 총망라한 과기총은 9월24일로 창립 9주년을 맞이하게 되었다. 과학기술인의 핵심체로 급성장한 과기총은 그동안 무섯을 어떻게 했나 지난 9주년동안의 업적을 여기에 간추려 보기로 한다.

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(1) 세계 PC 카메라, IMT-2000 시장 전망 - 올해 PC 카메라 생산량 급성장 대만 시장이 주요 고객 될 것

  • 한국광학기기협회
    • The Optical Journal
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    • v.12 no.2 s.66
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    • pp.2-5
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    • 2000
  • 올해 세계 PC & WEB 카메라 생산량은 전년에 비해 3배에 달하는 급성장을 이뤄 1,050만 대가 될 것으로 예상하고 있으며, 이중 가장 많은 비중을 차지할 곳은 대만이다. 올 하반기부터 일본을 시작으로 생산될 IMT-2000은 내년에 1,200만대가 생산될 것으로 보인다. 국내에서는 내년 상반기부터 생산에 들어가 2002년부터 서비스를 할 예정이다.

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Analysis of the success factors about the used market contradicting the covid-19 recession (코로나 불황 속 상반된 중고시장의 흥행요인 분석)

  • Kim, Jin-Hong;An, Hee-Dong
    • Proceedings of the Korea Information Processing Society Conference
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    • 2020.11a
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    • pp.151-152
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    • 2020
  • 최근 코로나바이러스(COVID-19)의 여파로 경기침체가 이루어 지고 있는 중, 반대로 역성장을 이루고 있는 중고시장의 흥행요인을 분석하고, 또한 기존 지역단위의 중고거래시장이 아닌 새로운 소규모 동네단위 중고시장의 급성장 요인을 분석하여 향후동향을 예측하고자 한다.

Effect of Doxycycline on the Acute Lung Injury Induced by Gut Ischemia/Reperfusion (장의 재관류로 유도된 급성폐손상에서의 Doxycyclin의 효과)

  • Lee, Young Man;Kwon, Sung Chul;Lee, Sang Chae
    • Tuberculosis and Respiratory Diseases
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    • v.54 no.5
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    • pp.532-541
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    • 2003
  • Background : Phospholipase $A_2$ ($PLA_2$) has been known to be involved in the pathogenesis of acute lung injury (ALI) including ARDS. Since doxycycline has the property of inhibiting secretory group II $PLA_2$, the therapeutic effect of doxycycline hyclate was investigated for gut ischemia/reperfusion (I/R)-induced ALI in Sprague-Dawley rats. Methods : ALI was induced in Sprague-Dawley rats by clamping of the superior mesenteric artery for 60 min, followed by 120 min of reperfusion. To confirm the pathogenetic mechanisms of this ALI associated with neutrophilic oxidative stress, we measured bronchoalveolar lavage (BAL) protein content and lung MPO, and performed cyto-chemical electron microscopy for detection of free radicals, assay of $PLA_2$ activity and cytochrome-c reduction assay. Results : In gut I/R-induced ALI rats, protein leakage, pulmonary neutrophil accumulation, free radical production and lung $PLA_2$ activity were all increased. These effects were reversed by doxycycline hyclate. Conclusion : Doxycycline appears to be effective in ameliorating the gut I/R-induced ALI by inhibiting $PLA_2$, thereby decreasing the production of free radicals from neutrophils.

Acute Rupture of Extensor Pollicis Longus Tendon after Distal Radius Fracture: A Case Report (요골 원위부 골절 후 발생한 급성 장무지 신전건 파열 -1예 보고-)

  • Hwang, Jung Chul;Chung, Duke Whan
    • The Journal of Korean Orthopaedic Ultrasound Society
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    • v.4 no.1
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    • pp.24-27
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    • 2011
  • Late rupture of the extensor pollicis longus (EPL) tendon is an occasional complication following a distal radius fracture. Early rupture of the EPL tendon as a complication of distal radius fracture is rare. We report one case of early rupture of the EPL tendon after distal radius fracture.

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Role of Group II Phospholipase $A_2$ in the Pulmonary Oxidative Stress of the Acute Lung Injury Induced by Gut Ischemia-Reperfusion (장의 허혈-재관류로 유도된 급성 폐손상에서 산화성 스트레스에 관여하는 group II phospholipase $A_2$의 역할)

  • Jheon, Sang-Hoon;Kim, Keun;Lee, Sang-Cheol;Kim, Seong-Eun;Lee, Young-Man;Lee, Jong-Tae
    • Journal of Chest Surgery
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    • v.35 no.7
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    • pp.501-510
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    • 2002
  • Background: The various pathogeneses of acute respiratory distress syndrome have been suggested but not established yet. In the present study, the role of group II phospholipase $A_2$($PLA_2$) in the pathogenesis of gut ischemia-reperfusion(I/R) induced acute lung injury (ALI), especially in the pulmonary oxidative stress with infiltration of neutrophils was investigated. Material and Method: To induce ALI, reperfusion of mesentery was done for 120 min after clamping of superior mesenteric artery for 60 min in Sprague-Dawley rats that weighed about 300g. To exmaine the role of group II $PLA_2$ in ALI, especially endothelial injury associated with the action of neutrophils, lung myeloperoxidase activity, lung leak index, bronchoalveolar lavage fluid protein were measured, and pulmonary $PLA_2$ activity changes in gut I/R were also measured. The role of group II $PLA_2$in the neutrophilic generation of free radicals was assessed by inhibiting group II $PLA_2$ with rutin, manoalide and scalaradial. Furthermore, to verify the oxidative stress in the lung, histologic and free radical detecting cytochemical electron microscopy were done. Result: After reperfusion, ALI was developed with accumulation of neutrophils in the lung, which was confirmed by the increase of myeloperoxidase activity, lung leak index and bronchoalveolar lavage protein (p<0.001). The pulmonary and intestinal group II $PLA_2$ activities significantly increased after gut I/R which were reversed by rutin(p<0.001). In vitro, cytochrome-c reduction assay denoted the inhibitory effects of rutin, scalaradial and manoalide on the production of free radicals from isolated human neutrophils. Histologically, neutrophilic accumulation and pericapillary edema in the lung after gut I/R was detected by light microscopy which was suppressed by rutin. In $CeCl_3$ cytochemical electron microscopy, the increased production of hydrogen peroxide in the lung after gut I/R was confirmed and also the production of hydrogen peroxide was decreased by rutin. Conclusion: On the basis of these experimental results, the inhibition of group II $PLA_2$ seemed to mitigate gut I/R-induced ALI by suppressing the production of free radicals from the infiltrated neutrophils. Collectively, group II $PLA_2$ seems to play a crucial role in gut I/R-induced ALI by neutrophilic oxidative stress.