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A Study on Analytical Model of Enterprise Competitive Advantage
공령명,시경봉,손요,신걸 한국품질경영학회 2019 한국품질경영학회 학술대회 Vol.2019 No.-
Power Process and Concordance Process are two new enterprise competition strategy theories put forward in Korea. This paper based on these two theories, implemented an empirical research for the Source of competitive advantage of private enterprises, and revealed the dialectical relationship between PP and CP.
Clinical Characteristics of Colorectal Carcinoid Tumors
대장내시경연구회 대한대장항문학회 2011 Annals of Coloproctolgy Vol.27 No.1
Purpose: The carcinoid tumor was recently categorized as a malignant disease due to its possibility of metastasis. This study was aimed to investigate the clinical characteristics and the metastatic rate of colorectal carcinoid tumors. Methods: Charts were reviewed for 502 patients diagnosed with and treated for colorectal carcinoid tumors between January 2006 and December 2009. The location, size, depth and metastatic status of the tumors were collected. Results: Including 24 synchronous tumors from 12 patients, 514 carcinoid tumors were removed. Most of them were found in the rectum (97.3%). The male-to-female ratio was 1.38 to 1, and mean age was 50.2 ± 11.4 years. The mean tumor size was 5.8 ± 3.6 mm. Less than 10-mm-sized tumors had a 1.95% lymph node metastatic rate; tumors with sizes from 10 mm to 20 mm and larger than 20 mm had 23.5% and 50% lymph node metastatic rates, respectively. Two cases had distant metastasis;one with a 22-mm-sized tumor metastasized to the liver, and the other with a 20-mm-sized tumor metastasized to the peritoneum. Among 414 patients who completed metastatic studies, 93.8% were classified as stage I, 0.9% as stage II, 4.8% as stage III and 0.5% as stage IV. Conclusion: Colorectal carcinoid tumors smaller than 10 mm have a low rate of lymph node metastasis, but those sized 10mm or larger incur significant risk. Further investigation regarding additional risk factors should be done to develop proper treatment guidelines for these tumors.
김준성,김병욱,김도훈,박찬혁,이혁,주문경,정다현,정준원,최혁순,백광호,이정훈,송교영,허세범,대한소화기학회 가이드라인위원회,대한상부위장관·헬리코박터학회,대한소화기내시경학회,대한위암학회,대한인터벤션영상의학회 대한소화기학회 2020 대한소화기학회지 Vol.75 No.6
Non-variceal upper gastrointestinal bleeding (NVUGIB) refers to bleeding that develops in the gastrointestinal tract proximal to the ligament of Treitz. NVUGIB is an important cause for visiting the hospital and is associated with significant morbidity and mortality. Although European and Asian-Pacific guidelines have been published, there has been no previous guidelines regarding management of NVUGIB in Korea. Korea is a country with a high prevalence of Helicobacter pylori infection and patients have easy accessibility to receive endoscopy. Therefore, we believe that guidelines regarding management of NVUGIB are mandatory. The Korean Society of Gastroenterology reviewed recent evidence and recommends practical management guidelines on NVUGIB in Korea.
EC와 COMECON간의 經濟協力이 蘇聯의 政策變化에 미치는 影響
金時慶 단국대학교 미소연구소 1990 미소연구 Vol.4 No.-
Gorbachev was elected in March 1985 as general secretary of Soviet Communist Party. It really marked the beginning of the era characterized by Perestroika and Glasnost. During past 30 years, COMECON refused to recognize the existence of EC. But joint declaration signed the 25th of June, 1988 between EC and COMECON was the first step of detente and cooperation based on mutual respect. Joint declaration includes five points: (1) Establishment of official diplomatic relation (2) Negotiation for mutual cooperation (3) Discussion concerning foreign trade and economic cooperation between member countries of two economic blocs (4) Dispatch of COMECON officials to EC (5) Important support of EC for East European Countries in the field of economic assistance and admission of COMECON countries to International Organization The USSR and East European Countries face now serious economic, social and ideological problem which menace the importance of socialism and COMECON. We suppose that socialism orthodox is going to decline due to six following reasons: First, globalization of economy, second, progress of technology(especially communication), third, failure of centralized planning economic system, fourth, heavy burden for social security and welfare, finally, the fall of socialism is replaced by the transition period called 'socialism of competitive economy'. In spite of Perestroika and Glasnost introduced by Soviet president Gorbachev, economic, situation of the USSR deteriorate with low productivity, stagnation of economic growth, inefficient distribution of national resources. These characteristics are common to all member countries of COMECON. As a result, the USSR and East European Countries are obliged to adopt liberal economic system. EC ardently helps to the movement of Perestroika and Glasnost. But it is not sure that COMECON countries participate in the economic integration in 1992. COMECON will not be dissolved. For the USSR and East European countries do not want to be under economic of EC countries. The accelerating rapprochement of EC-COMECON may concrete the dream of single European economic sphere in the future. The realization of this idea will be the most important and historical change since the World War Ⅱ.