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이경주 朝鮮大學校 經營經濟硏究所 2003 經營經濟硏究 = Management and economics research Vol.26 No.2
본 연구는 한국주식시장에서 주식시장이 침체기에 있을때 시장과 개별주식 간의 상관관계가 높은 주식을 하락위험이라고 정의하고 시장수익률과 개별주식의 수익률의 상관관계에 따라 단기적인 기대수익률을 예측할 수 있는가를 알아보기 위한 기초적인 연구를 수행하였다. 시장을 하락과 상승으로 통제한 후에 하락위험이 높은 주식의 단기 수익률이 높게 나타난 미국주식시장과는 달리 한국주식시장에서는 하락위험이 가장 작은 주식의 포트폴리오는 가장 큰 주식의 포트폴리오보다 높은 기대수익률을 보였다. 반면에 하락시장에서의 베타가 큰 포트폴리 오가 낮은 포트폴리오보다 높은 기대수익률을 보임을 알 수 있었다. 이는 한국 주식시장의 변동성이 미국시장에 비해 매우 높아 나타나는 이례적인 현상으로 단기적인 모벤텀투자전략의 효율성보다는 반전효과가 나타나고 있음에서도 발견할 수 있었다. 규모효과와 가치비율을 통제한 후에도 장기적인 반전투자전략이 유효한지에 대한 검증이 향후 필요할 것으로 생각된다.
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군사안보외교통상 정책에 대한 민주주의적 통제 ; 일본의 기지재편과 반기지 투쟁
이경주 민주주의법학연구회 2006 민주법학 Vol.0 No.32
日本においても米軍軍事基地の再編か行おれている. 戰力を禁止し, 集團的自衛權を否定している日本國憲法にもかかわらず, 日米間の軍事融合は進んでいゐ. なお, 韓半島の有事をも想定していゐため東北アヅアの平和の觀点からも關心の的にならぢるを得ない. 駐日米軍の駐留の根據になるのは`日米相互協力および安全保障に關する條約(以下, 新安保條約)であゐ. 新安保條約は1951年締結された舊安保安條約の中の內亂條項などの不平等な諸点を正すことを名分にした. ところが, 新安保條約は內亂條項の削除, 有效期限の限定など一定の進展があったものの, 舊安保條約に引き續き全土基地方式の基地提供を約束したため, 條約改正後もさまざまな諸基地問題が續いている. 1950年代の後半, 砂川の住民は立川の米軍飛行場を砂川まで擴張しようとした日本政府の方針に反對する反基地運動を展開し、そのなかで東京地方裁判所は ``駐日米軍は戰力を禁止している日本國憲法に違反`` するという1審判決を得た. 1960年代後半, 北海道の長沼町ではナイキミサイル基地建設のための保安林解除處分に對抗した. これについて1審では保安林解除處分が日本國憲法前文の平和的生存權を侵害するとの判決を下した. 最近においても, さまざまな反基地鬪爭が行われている. 特に2006年5月l日の日米間の基地再編に對する合議に基づき, アメリカ本土にある米陸軍の第1軍團が神奈川縣の座間基地ヘ移り據点指令部(UEx)の役割をする予定であり, 日本の航空自衛隊の司令部は橫田にある米空軍基地に移轉するそうである. また沖?にある米海兵隊はグアムに移り, 空母搭戰機は岩國に移轉する予定である. このような一連の米軍基地再編につい活發な反基地鬪爭が行われている. 岩國では住民投票を通じて反對の意思を明らかにする一方, 市長選擧では米軍基地再編に反對する候補が?選された. 沖?では普天間飛行場の移轉地と予定されたシュワブの海上での反對鬪爭が續き, シュワブ沿岸に予定地が變わったが, これに反對する大規模の大衆運動が展開されつつある. 日本で展開されている米軍基地再編は集團的自衛權を否定している日本國憲法違反の問題のみならず, 東北アジアの平和の問題である. アメリカは日本と韓?を繫ぐ軍事同盟を體系化し、迅速機動軍として再編しようとしているのである. このような一連の軍事再編は東北アジアの民衆の平和的生存を危うくする策動である. したがって, 日本の米軍基地再編に反對する諸鬪爭は平和的生存權を騰ち取るための憲法實踐運動であり, 平和運動として位置づけるべきである.
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A Review of Object and Field Perspective on Modifiable Areal Unit Problem
이경주 한국지도학회 2011 한국지도학회지 Vol.11 No.1
Vector and raster data model often base their conceptual framework on discreteness and continuity. Although the distinction makes sense in practice, more fundamental argument needs to be drawn on the fact that the continuous nature of geographic reality is not technically compatible to the discrete representation in the physical computer systems. The discrepancy between conceptual basis for perceiving geographic reality and physical limitation for concrete representation of it has derived the problem which has been referred to as modifiable areal unit problem (MAUP) in geographical analysis context. In the literature of geographical information science, the two dichotomous distinction of geographic reality and physical bound is remarked to object and field debates. In this paper, ontological argument is provided on realigning the distinction between discreteness and continuity to object and field to revisit the framework of vector and raster representation of geographic reality. The argument is intrinsically associated with the fundamental question of how to define geographic boundary, which is the foundational source of conceptual dilemma in vector and raster debate. It is expected that the argument in ontological perspective provides theoretically sound conceptual base for re-illuminating MAUP in geographical analysis.
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Serum CA 19-9 and CEA Levels as a Prognostic Factor in Pancreatic Adenocarcinoma
이경주,이승우,정문재,박승우,송시영,정재복,박정엽 연세대학교의과대학 2013 Yonsei medical journal Vol.54 No.3
Purpose: To investigate the use of pretreatment carbohydrate antigen (CA) 19-9 and carcinoembryonic antigen (CEA) as prognostic factors to determine survival in pancreatic adenocarcinoma. Materials and Methods: A retrospective review of the medical records of patients who were diagnosed with pancreatic adenocarcinoma and received surgery, chemoradiotherapy or chemotherapy was performed. Factors, including CA 19-9 and CEA, associated with the survival of pancreatic cancer patients were analyzed. Results: Patients with the median age of 65 years were included (n=187). Elevated serum CA 19-9 levels and CEA levels were observed in 75.4% and 39% of patients at diagnosis, respectively. CEA was correlated with tumor stages (p=0.005), but CA 19-9 was not. CA 19-9 and CEA were elevated in 69.0% and 33.3% of patients with resectable pancreatic cancer, and elevated in 72.9% and 47.2% of patients with advanced pancreatic cancer, respectively. The median overall survival of the normal serum CEA group was longer than that of the elevated serum CEA group (16.3 months vs. 10.2 months, p=0.004). However, the median overall survival of the normal serum CA 19-9 group was not different from that of the elevated serum CA 19-9 group (12.4 months vs. 13.5 months, p=0.969). The independent factors associated with overall survival were advanced pancreatic cancer [harzard ratio (HR) 4.33, p=0.001] and elevated serum CEA level (HR 1.52, p=0.032). Conclusion: Patients with elevated serum CEA level at diagnosis demonstrated poor overall survival. Pretreatment CEA level may predict the prognosis of patients with pancreatic adenocarcinoma.
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