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Yeo, Kwon Joo,Hwang, Eunha,Min, Kyong-Mi,Jee, Jun-Goo,Lee, Chung-Kyung,Hwang, Kwang Yeon,Jeon, Young Ho,Chang, Soo-Ik,Cheong, Hae-Kap The Royal Society of Chemistry 2014 Chemical communications Vol.50 No.85
<P>The heparin complex of rat angiogenin revealed that a heparin strand is fitted into a positively charged groove formed by the dual binding site of rat angiogenin, suggesting that cell adhesion to angiogenin is facilitated by its interaction with substrates on the cell surface and can be inhibited by heparin.</P> <P>Graphic Abstract</P><P>A negative heparin strand is well fitted into the positive groove formed by the dual heparin-binding site of angiogenin. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c4cc05175k'> </P>
혼성체육수업의 남학생 역차별이 체육교사에 대한 동일시, 체육수업의 재미, 몰입에 미치는 영향
이창섭(Chang Seop Lee),여정권(Jeong Kwon Yeo),윤대현(Dae Hyun Yun),황명구(Myoung Goo Hwang) 한국체육교육학회 2010 한국체육교육학회지 Vol.15 No.1
본 연구는 중학교 3학년 남학생들 대상으로 혼성체육수업의 역차별이 체육교사 동일시, 체육수업의 재미, 몰입에 어떠한 영향을 미치는가를 분석하는 것을 목적으로 수행되었다. 이를 위해 중학교 3학년 남학생 871명을 연구대상으로 선정하여 연구를 진행하였다. 수집된 자료는 SPSS-WIN 15.0을 이용하여 중다회귀분석을 통해 분석되었고, 다음과 같은 결론을 얻을 수 있었다. 첫째, 혼성체육수업의 처벌, 수업활동의 차별이 체육교사 동일시에 부적인 영향을 미쳤다. 둘째, 혼성체육수업의 역차별이 체육수업 재미에 부적인 영향을 미치는 것으로 나타났는데 평가의 차별은 사회성 함양에 긍정적인 영향을 미쳤다. 셋째, 혼성체육수업의 역차별이 체육수업 몰입에 부적인 영향을 미치는 것으로 나타났는데 평가의 차별은 체육수업과정 통합과 수업행동과 의식의 일치에 긍정적인 영향을 미치는 것으로 나타났다. 마지막으로, 혼성체육수업의 체육수업 재미가 체육수업 몰입에 긍정적인 영향을 미치는 것으로 나타났는데 수업의 용이성이 자기 목적적 경험에는 부적인 영향을 미치는 것으로 제시되었다. The purpose of this study was to analyze how reverse discrimination in coeducational classes affected students` overall enjoyment of P.E. students` personal identification with the P.E. teacher, and student`s flow. For achieving this purpose, some relevant questionnaires were distributed to 871 third grade male middle school students. This study drew the following conclusions. First, different methods of punishment between genders during class activity produced a negative effect on students` trust and identification with the P.E. teacher. Second, reverse discrimination in coeducational classes also produced a negative effect on the enjoyment of P.E., whereas differing standards in evaluation produced a positive effect on students` sociality. Third, while reverse discrimination in coeducational classes had a negative effect on students` absorption in P.E., differing gender requirements in student evaluations produced a positive effect on the accord between class behavior, consciousness, and the integration of the P.E. course. Finally, the overall enjoyment students experienced from a coeducational P.E. class played a positive role that improved student`s flow. The subsequently easier drills and exercises, however, were found to produce a negative effect on the overall experience for male students.
The utility of CD44 and D2-40 as a prognostic predictor in invasive carcinomas of the breast
Jung Whan Chun,Yeo Goo Chang,Seong Woo Hong,Woo Yong Lee,Byungmo Lee,Hye Kyung Lee 대한종양외과학회 2013 Korean Journal of Clinical Oncology Vol.9 No.1
Purpose: Local recurrence and distant metastasis are major prognostic factors associated with breast cancer. Lymphovascular invasion is an important pathway of metastatic spread. CD44 and D2-40 are assumed to be related with invasion of malignant cells to the adjacent lymphatic or vascular structures by different mechanisms. This study was conducted to examine whether CD44 and D2-40 expression together have prognostic value in invasive carcinoma of the breast. Methods: A total of 46 surgically resected tissue samples of invasive carcinoma of the breast were analyzed for immunohistochemical expression of CD44 and D2-40, along with other clinicopathologic factors. Association between patient related factors and disease free survival was evaluated by statistical analysis. Results: Disease free survival was shorter in CD44-positive patients (median, 66.5 months) than in CD44-negative patients (median, 112.6 months; P<0.001). All of 17 patients with recurrence showed D2-40 positivity. When both markers were positive, disease free survival was considerably shorter (63.3 months) than when at least one marker was negative (112.9 months, P<0.001). Conclusion: We concluded that expression of CD44 and D2-40 is associated with unfavorable prognosis. Concurrent positivity of both markers may be useful in predicting malignant relapse following surgical resection with shorter disease free survival in patients with invasive carcinoma of the breast.
Clinical Significance of Preoperative Inflammatory Parameters in Gastric Cancer Patients
Lee, Deuk Young,Hong, Seong Woo,Chang, Yeo Goo,Lee, Woo Yong,Lee, Byungmo The Korean Gastric Cancer Association 2013 Journal of gastric cancer Vol.13 No.2
Purpose: Chronic inflammation induces cancer and cancer induces local tissue damage with systemic inflammation. Therefore, the aim of this study is to investigate the potential relationship between the severity of inflammation and prognosis in cancer patients. Materials and Methods: This study enrolled 220 patients from January 2002 to December 2006 who underwent gastric surgery. We evaluated the relationship between preoperative inflammatory parameters (erythrocyte sedimentation rate, neutrophil-to-lymphocyte ratio) and other clinicopathological factors. Survival outcomes were compared according to the extent of inflammation. Results: Significant elevation of erythrocyte sedimentation rate was related with old age, increased neutrophil-to-lymphocyte ratio, decreased hemoglobin, increased carcinoembryonic antigen, increased tumor size and advanced TNM stage. Neutrophil-to-lymphocyte ratio was significantly correlated with old age, increased erythrocyte sedimentation rate and advanced TNM stage. In the univariate analysis, elevated erythrocyte sedimentation rate and increased neutrophil-to-lymphocyte ratio had significantly poorer survival than those without elevation (all P<0.05). However, the multivariate analysis failed to prove erythrocyte sedimentation rate and neutrophil-tolymphocyte ratio as independent prognostic factors. Conclusions: The elevation of erythrocyte sedimentation rate and neutrophil-to-lymphocyte ratio were correlated with poor prognosis in the univariate analysis and there was a strong correlation between inflammatory parameters (erythrocyte sedimentation rate and neutrophil- to-lymphocyte ratio) and tumor progression. Thus, erythrocyte sedimentation rate and neutrophil-to-lymphocyte ratio are considered useful as follow-up factors.
자성 유체분리에 의한 양어장 순환수내 부유 고형물의 제거
김용하(Yong Ha Kim),여평모(Ryoung Mo Yeo),서근학(Kuen hack Suh),김행구(Hang Goo Kim),정우창(Uoo Chang Chung),김순호(Soon Ho Kim) 한국수산과학회 1999 한국수산과학회지 Vol.32 No.5
A magnetic fluid separation technology was confirmed to be very effective to remove the suspended solids (SS) from aquacultural recirculating water. In this study, the effects of operating variables on the characteristics of SS removal were investigated through the test runs using magnetite of 2 ㎛ mean diameter as magnetic powder. Magnetic flocculation here formed by adsorbing fine magnetites on the surface of suspended solid was observed. The strength of magnet was of significance in determining the SS removal efficiency as well as the capacity of the equipment. In addition, the SS removal efficiency decreased with an increase in the superficial liquid velocity, but the effect became negligible when the mass ratio of magnetite to the suspended solids was higher than 1.0.
Kyeong Woon Choi,Seong Woo Hong,Yeo Goo Chang,Woo Yong Lee,Byungmo Lee,In Wook Paik,Hyucksang Lee 대한외과학회 2014 Annals of Surgical Treatment and Research(ASRT) Vol.86 No.6
Purpose: This study was conducted to evaluate the systemic inflammatory response in colorectal cancer patients, and to estimate the usefulness of the Glasgow prognostic score (GPS) as a prognostic factor. Methods: Patients with biopsy-proven colorectal adenocarcinoma who were operated between April 2005 and December 2008 were enrolled in this study. The GPS was estimated based on the measurement of CRP and serum albumin level. The GPS was compared with other clinicopathological factors. Univariate and multivariate analyses were performed to evaluate the factors affecting cancer-specific survival. Results: GPS was significantly higher in patients with anemia, thrombocytosis, a high neutrophil to lymphocyte ratio, tumor of the colon, and large tumor. Patient age, gender, serum CEA level, tumor gross appearance, TNM stage, and tumor differentiation were not related with the GPS. In univariate analysis, hemoglobin, CEA, gross appearance of tumor, TNM stage, tumor differentiation, and GPS were associated with cancer-specific survival. In multivariate analysis, TNM stage (III or IV : I or II; hazard ratio [HR], 12.322; P = 0.015), tumor differentiation (poorly differentiated : well or moderately differentiated; HR, 3.112; P = 0.021), and GPS (GPS 2 : GPS 0 or 1; HR, 5.168; P = 0.003) were identified as independent prognostic factors in colorectal cancer. Conclusion: Our study showed that the GPS was an independent variable from tumor stage and a good and convenient prognostic factor in colorectal cancer patients.
홍성우 ( Seong Woo Hong ),장여구 ( Yeo Goo Chang ),이병모 ( Byungmo Lee ),이우용 ( Woo Yong Lee ) 대한소화기학회 2016 대한소화기학회지 Vol.68 No.3
Spontaneous bleeding from a short gastric artery in the absence of pre-disposing trauma is reported very rarely. To the best of our knowledge, the published literature includes only 14 cases. Young men comprise almost all of the patients, and were induced by vomiting or gagging. The patients usually required emergent surgery. Our patient, a 32-year-old man, was diagnosed with spontaneous hemoperitoneum due to short gastric artery tearing after a few instances of vomiting. We managed him conservatively including fluid, vitamin K and antifibrinolytic agent without surgery. (Korean J Gastroenterol 2016;68:152-155)
직무 스트레스가 중소기업에서 근무하는 작업자에게 미치는 영향
박근상,여종구,김창한,Park, Keun-Sang,Yeo, Jong-Goo,Kim, Chang-Han 대한인간공학회 2007 大韓人間工學會誌 Vol.26 No.3
This study aims at providing some basic material to be made use of for establishing plans through which one can reduce job-related stress, through conducting a survey on the sources of stress and then distinguishing its symptoms by the sources. As the methods of the study, we conducted a questionnaire survey of some selected medium enterprises' employees in the National Capital region and analysed the results. The questionnaire was designed by using the dynamic stress model of Cooper and Eaker and consisted of 85 questions to examine the sources of stress, the characteristics of personalities, and symptoms by each type of stress. The total valid respondents were 392 persons indicating 65.3% of the response rate. For analysing the results, a rating scale was used, and the reliability and validity were tested by using Cronbach's alpha coefficient. As the result of the study, those workers in medium enterprises were found to be put under much stress by responsibility, physical environment factors and career development factors and so on. As physical symptoms of job-related stress, eye fatigue, stiffness in their shoulders, headache, worry or anxiety, and waist ache presented most in the respondents. In addition, as behavioral symptoms, chronic fatigue was most indicated. In organizational symptoms, dissatisfaction about the company and lack of self-motivation for the job performance were found to show most. Moreover, the results indicated that the closer personalities to those appearing in persons mostly of type A they had, the more they were put under intensive stress by the vagueness of their roles and responsibility among all the job characteristics.