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이승아,배자성,김기환,김지일,안창혁,박우찬,송병주,정상설,김정수,Seung Ah Lee,M.D.,Ja Seong Bae,M.D.,Kee Hwan Kim,M.D.,Ji Il Kim,M.D.,Chang Hyuck An,M.D.,Ph.D.,Woo Chan Park,M.D.,Ph.D.,Byung Joo Song,M.D.,Ph.D.,Sang Seol Jung,M.D 대한갑상선-내분비외과학회 2007 The Koreran journal of Endocrine Surgery Vol.7 No.2
Purpose: Endoscopic surgery to treat thyroid neoplasm was developed to solve the aesthetic problems that resulted from conventional open surgery. Although endoscopic thyroidectomy was initially performed in patients with benign thyroid neoplasm, its use has recently been extended to patients with Graves's disease and early cases of thyroid cancer.The purpose of this study was to determine whether this surgical approach is feasible and safe for the treatment of thyroid cancer. Methods: Between December 1999 and April 2006, 132 thyroid cancer patients at our institution were treated by either conventional thyroidectomy or endoscopic thyroidectomy. Endoscopic thyroidectomy was conducted using a gasless anterior neck skin lifting method. The inclusion criteria for endoscopic thyroidectomy in thyroid cancer patients included a tumor size of less than 2cm, absence of extrathyroidal extension, absence of cervical lymph node metastasis, and well differentiated cancers. Results: We performed endoscopic thyroidectomy in 29 thyroid cancer patients. There were no significant differences in operative time, the amount of drainage and the number of retrieved lymph nodes between conventional thyroidectomy and endoscopic thyroidectomy. In addition, although endoscopic thyroidectomy was associated with more complications, it was also associated with a shorter hospital stay. Conclusion: The completeness of surgical resection conducted via an endoscopic thyroidectomy may be comparable to that of conventional surgery, however, a larger series and longer follow-up evaluation are necessary for definitive conclusions to be drawn about its oncologic validity. (Korean J Endocrine Surg 2007;7:103-106)
이승아,김도현,김윤,Lee, Seung-Ah,Kim, Dohyeon,Kim, Yoon 한국멀티미디어학회 2021 멀티미디어학회논문지 Vol.24 No.6
During tensile test, tensile strain of tensile tester is measured by movement distance of upper zig and initial specimen's length. Conventional tensile tester program obtains the tensile strain after the end of the test, however the method is not appropriate in real time because the results are calculated until the test is finished. We suggest a real-time measurement system of tensile strain using ArUco Marker in OpenCV library. The system is designed to detect marker attached on the upper zig and calculate specimen's tensile strain. According to comparison of the calculated data and the results of the tester, errors approximately showed 0.128 mm on 3840×2160 video resolution.
중화인민공화국 건국 전후 식량 유통의 변화 ― 화베이 지역의 양곡 시장과 ‘牙行’의 변천을 중심으로 ―
李昇娥(Lee Seung-a) 동양사학회 2021 東洋史學硏究 Vol.157 No.-
The purpose of this article is to show the transition process from grain market trading brokered by ‘Ya Hang’ (牙行, Brokerage service company) to state procurement and distribution system by state-owned company and cooperative (合作社) before and after the founding of the PRC. Before the founding, grain and other agricultural products were traded in market through an intermediary, ‘Ya Hang’, that had networks between rural production areas and major markets. ‘Ya Hang’ not only mediated between merchants but also managed wholesale distribution. This study focuses on the fact that roles of ‘Ya Hang’ in market trading and their business was virtually defunct before ‘Socialist Transformation’ of market in 1953, tracking specific changes in the market and ‘Ya Hang’ from the Sino-Japanese War. It also explain how the communist party successfully transformed traditional market structures in 1953. This study examines the changes of grain trading in North China, Huabei, as a representative area in terms of implementing economic policy of the Communist Party; The North China people"s government actively reflected the ‘New Democracy’ policy of the Central Committee of CCP in economic policy, and all its organizations including the Huabei Trading Company (華北貿易公司) became new central government organization and a central state-owned company. Moreover, Tianjin, a representative grain market and distribution hub in North China, had been a core logistical base for Japan, the Kuomintang, and the Chinese Communist Party after the Sino-Japanese War. Therefore, changes of ‘Ya Hang’ in North China can sucseefully explain the transition process of market trading from the Sino-Japanese War to the establishment of PRC. This explanation suggests new significance of the ‘New Democracy’ policy in Chinese ‘Socialist Transformation’, often overlooked in the past. During the ‘New Democracy’ period, organization of the state-owned company was expanding in agricultural production areas and wholesale and retail markets, markets restructuring had already begun, and commercial activities based on market logic were limited for ‘Socialist Transformation’.
이승아(Seung A Lee),김기환(Kee Hwan Kim),김지일(Ji Il Kim),안창혁(Chang Hyeok An),김정수(Jeong Soo Kim),유승진(Seong Jin Yoo),임근우(Keun Woo Lim) 대한외과학회 2007 Annals of Surgical Treatment and Research(ASRT) Vol.73 No.4
Primary retroperitoneal mucinous cystadenocarcinoma is a rare tumor, and it is similar to its ovarian counterpart, but it is without any evidence of ovarian, pancreatic or any other extra-retroperitoneal origin. The histogenesis of this neoplasm remains uncertain. Mucinous or colemic metaplasia of the retroperitoneal mesothelium has recently been proposed as its origin. A 39-year-old woman was diagnosed with a 13-㎝ cystic lesion in the left retroperitoneum; this was mucinous cystadenocarcinoma and no primary tumor was identified. We report here on a primary retroperitoneal mucinous cystadenocarcinoma that involved the splenic hilum, and we include a review of literature.
노인체육지도자의 직무환경이 감정노동과 직무만족에 미치는 영향
이승아(Lee, Seung-A),이성노(Lee, Sung-No) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.1
The purpose of this study was to examine the relationship between emotional labor and job satisfaction according to career and job environment for elderly sports leaders. The subjects were 330 senior sports leaders in Seoul, Gyeonggi, and Chungcheong regions, and a total of 303 copies were analyzed, excluding 27 unfaithful questionnaires. The job descriptive index (JDI) developed by Smith (1965) was used as a tool for measuring job environment and job satisfaction. The scale of emotional labor was appropriately supplemented and used for the elderly sports leaders based on the questionnaire used in Kwak Hyun-wook (2015)"s study. For data processing, frequency analysis, factor analysis, and reliability analysis were performed using SPSS 23.0. In addition, a one-way ANOVA was performed to determine the difference between emotional labor and job satisfaction according to career, and a multiple regression analysis was performed on the relationship between emotional labor and job satisfaction according to job environment. As a result, it was found that there was a significant effect on emotional labor (surface behavior and inner behavior) and job satisfaction (achievement, prospect, turnover, job aptitude) according to the career of the elderly sports instructor. In addition, it was found that the job environment of the elderly sports leader has an effect on emotional labor and job satisfaction. In the future, the recognition and system of the necessity for improving the job environment and emotional management of the elderly sports leaders are required.