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정경원,Chang Liu 상명대학교 글로벌문화예술교육연구소 2023 Research in Dance and Physical Activity Vol.7 No.3
This study compares and analyzes the training programs of Korean Taekwondo and Chinese Wushu in the context of how martial arts, martial arts, and martial arts are used in recreation. The research methodology was based on interviews and training plans collected from 23 field instructors with an average of 14 years of experience. The comparison of Korean Taekwondo and Chinese Wushu, which are representative of their respective countries and are considered similar martial arts, revealed the following differences. Firstly, in terms of the objectives and duration of recreational programs, Taekwondo incorporates a dedicated recreational class at least once every two weeks, where recreational content constitutes approximately 85% of the class time. Additionally, other technical practice sessions also include some recreational elements, accounting for approximately 20% of the time. In contrast, Wushu does not have dedicated classes primarily focused on recreational content. Recreational activities are generally incorporated as part of the warm-up in training, constituting approximately 16% of the overall time. However, this may vary depending on the coach. Second, in terms of recreational programs and tools, Taekwondo dojang organized programs using sports games such as soccer, basketball, and baseball and various tools such as jump rope, gym ball, stacks, and new sports, while Chinese Wushu consisted of soccer and softball. The Chinese Wushu program differed from the Korean Taekwondo program in terms of the proportion and type of recreational activities used, as well as the emphasis on skill-based classes due to the traditional nature of the martial art.
김유희,김영진,정경원 大韓小兒齒科學會 1995 大韓小兒齒科學會誌 Vol.22 No.1
유치 상아세관의 형태학적 특징을 관찰하기 위하여 정상탈락기의 유전치, 조기발거한 유전치, 정상탈락기의 유구치와 대조군으로 저기발거한 영구소구치 각 10개를 대상으로 치관부 상아질을 주사전자현미경적 관찰을 통해 치수측, 중앙부, 법랑상아경계부근의 각 부위별 상아세관의 직경과 단위면적당 수를 측정하여 각 군내에서의 부위별 차이와 각 부위에서의 각 군간의 차이을 비교평가하여 다음과 같은 결론을 얻었다. 1. 정상탈락기의 유전치, 조기발거한 유전치, 정상탈락기 유구치, 조기발거한 영구 소구치 각 군내에서의 부위별 상아세관의 직경은 치수측에서 법랑상아경계부근으로 갈수록 작게 나타났다.(p<0.01). 2. 각 군간의 부위별 상아세관의 직경은 조기발거한 영구소구치군이 모든 부위에서 다른 세 군에 비해 크게 나타났다.(p<0.05). 3. 치수측과 중앙부에서 상아세관의 직경은 정상탈락기의 유구치군이 정상탈락기의 유전치군과 조기탈락한 유전치군에 비해 크게 나타났다(p<0.01). 4. 정상탈락기 유전치, 조기발거한 유전치, 정상탈락기 유구치, 조기발거한 영구 소구치에서 부위별 단위면적당 상아세관의 수는 치수측에서 법랑상아경계부근으로 갈수록 작게 나타났다(p<0.01). 5. 각 군의 상아질 치수측, 중앙부, 법랑상아경계부근에서 단위면적당 상아세관 수의 차이는 없었다(p<0.05). The purpose of this study was to evaluate number and diameter of tubules in pulp side, middle side, dentinoenamel junction side of coronal dentin of normal exfoliated anterior primary teeth, early extracted anterior primary teeth, normal exfoliated posterior primary teeth and early extracted permanent premolar. Numbers of sample were 10 teeth in each group. The diameter and number of tubules were counted and measured in ×4000 magnified screen of scanning electron microscope. The comparison of diameter and number of tubules at three level in each group was done. The results of this study were as follow. When the diameters of tubules at three levels were compared, the diameters of tubules were graduately decreased from pulp side close to dentinoenamel juntion side in all groups. At pulp sidem middle side and dentnoenamel junction side, when the diameters of tubules of each group were compared, the diameters of tubules of early extracted permanent premolar were greater than other groups. At pulp side, the diameters of tubules of normal exfoliated posterior primary teeth were greater than that of other two primary teeth groups. When the number of tubules at three levels were compared, the number of tubules were graduately decreased from pulp side close to dentinoinamel junction side in all groups. A pulp side, middle side and dentinoenamel junction side, when the number of tubules of each group were compared, no significant difference was in each group.
위암환자 전산화단층촬영시 경구조영제로서 물의 유용성에 관한 연구 : Usefulness of Water as an Oral Contrast Agent
정경원,김충현,박청희 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1
Computed tomography is valuable for direct visualization of changes of gastric wall and staging of gastric tumor. Gastric distension is essential for the evaluation of gastric wall. Computed tomography of the gastric wall after sequential ingestion of normal saline to 1000cc, followed by rapid intravenous injection of contrast medium, was performed in 36 patients with known gastric tumors. Three patients were excluded due to incomplete gastric distenstion and the lesion was not detected. Thirtythree patient was analysed preoperatively; the changes of wall were analysed in all patients and CT staging is compared with that of 19 cases who underwent surgery. The results were as follows: 1. All cases are adenocarcinomas. 2. Thickening of gastric wall is detected in all cases and the ulceration within the thickened wall is detected only in five cases among the 25 cases of Borrmann type Ⅱ and Ⅲ. 3. Absence or presence of perigastric fat infiltration is correctly diagnosed in 15 cases among the 19 cases who underwent surgery 4. Lymph node metastasis, is correctly diagnosed in nine cases among the 19 cases 5. Pancreatic metastasis is correctly diagnosed in all cases who General acceptance and tolerance of water as a gastric contrast medium was good in all patients, and water made excellent negative contrast with gastric wall, and there was no side effects.