http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
대청호에서 Geosmin, 2-MIB의 시간적·공간적 분포 특성
김교영 ( Kyo Young Kim ),간종범 ( Jong Beom Khan ),최인찬 ( In Chan Choi ),홍선화 ( Seoun Hwa Hong ),이준배 ( Jun Bae Lee ),이수형 ( Soo Hyung Lee ),이재정 ( Jay Jung Lee ) 한국환경농학회 2015 한국환경농학회지 Vol.34 No.1
BACKGROUND: Contamination of source water by odorous compounds are one of the problems related to the water quality management, especially in Korea where surface water is used as drinking water. Geosmin (1, 10-trans-dimethyl-trans-9-decalol) and 2-MIB (2-methyl isoborneol : 1,2,7,7-tetramethyl-exo-bicycloheptan-2-ol) are commonly recognized earthy-musty odor compounds produced by algae causing serious problems to the drinking water purification facilities. METHODS AND RESULTS: In this study, spatial and temporal distribution of the odor compounds, geosmin and 2-MIB were investigated along with the development of phytoplankton in the Daechung reservoir from July 2012 to October 2013. CONCLUSION: Concentrations and frequencys of detection of both compounds increased from April to October which were related to cyanobacterial bloom periods. However, concentrations of odor compounds were not related to the number of cyanobacteria. Concentrations of both cyanobacteria and geosmin showed similar trends with depth. Pearson correlation analyses showed that geosmin concentration exhibited significant correlation with the count of Anabaena macrospora and Aphanizomenon flos-aquae. On the other hand, 2-MIB concentration showed a significant correlation with the count of Anabaena smithii.
부부창업가의 관계기반요인이 인지된 성공에 미치는 영향: 재무성과의 매개를 중심으로
정대용(Chung, Dae-Yong),김교영(Kim, Kyo-Young) 한국경영교육학회 2021 경영교육연구 Vol.36 No.1
[연구목적] 본 연구는 갈수록 숫자와 중요성이 증가하고 있는 부부창업 기업을 대상으로 원인변수인 관계중심요인과 매개변수인 재무성과, 그리고 종속변수인 인지된 성공이 어떤 인과관계를 갖는지 살핀다. 또한 현실적 어려움에 직면해 있는 부부창업가들이 성공을 향해 가기 위한 실무적 시사점을 제공하고, 이를 지원하기 위한 정책적 시사점을 찾고자 한 실증적 연구이다. [연구방법] 제한된 국내․외 관련 선행연구들을 검토하여 이루어진 이론적 논의를 토대로 모두 10개의 가설을 한 연구모형을 수립하였다. 이의 검증을 위해 국내에서 부부가 함께 기업을 경영하고 있는 부부창업가 98쌍인 196명의 응답을 최종 활용하여, Baron and Kenny의 매개회귀분석 및 Process macro를 통해 가설검증을 시도하였다. [연구결과] 관계기반요인의 구성요소 세 개 중의 하나인 개방된 의사소통은 인지된 성공에 직접 영향도 미치고, 재무성과를 통해 간접적으로도 영향을 미치는 것으로 나타나서 부분매개의 영향을 미치는 것으로 나타났다. 또한 표본 수집을 증가시키기 어려운 현실을 감안하고 재무성과의 매개효과를 보다 세밀하게 검정하기 위하여 PROCESS macro를 이용하여 매개효과를 재차 검정하였다. 개방적 의사소통과 인지된 성공관계에서 재무성과를 매개변수로 투입된 경우는 재무성과의 매개효과가 나타났다. 반면에 업무가족균형과 사업전념 모두는 인지된 성공에 미치는 영향에서 재무성과의 매개효과가 전혀 없음을 알 수 있었다. [연구의 시사점] 본 연구는 부부창업가를 대상으로 좀 더 구체적이며 심화된 이론적 선행연구 논의에 따른 실증적 탐색 분석결과를 제공하였다는 점, 현실적 어려움에 직면한 부부창업가들에게 실무적 시사점을 제공했다는 점, 학제적 연구의 교육적 및 정책적 지원의 이론적 토대를 제공했다는 점에서 의의가 있다고 하겠다. [Purpose] The purpose of this study is to examine the relationship between relation-based factors, financial performance and perceived success by targeting co-preneur’s companies which are increasing in number and importance. To achieve success of co-preneurs facing real difficulties empirical study accomplished providing practical implications in future and finding policy implications for supporting them. [Methodology] A research model based on 10 hypotheses was established based on theoretical discussions made by reviewing limited domestic and foreign related prior studies. To verify this, the responses of 196(98 couples) of married couples who run a company together in Korea, were finally used to test hypotheses through mediated regression analysis of Baron and Kenny and Process macro. [Findings] When financial performance was used as a parameter in open communication and perceived success relationship, the mediating effect of financial performance appeared. On the other hand, it was found that both work-family balance and business commitment had no mediating effect of financial performance in the impact on perceived success. Open communication had a direct effect on perceived success. To test the mediating effect, the mediating effect was reconfirmed using the PROCESS macro. [Implications] This study provided empirical search and analysis results based on more specific and in-depth theoretical previous research discussions for Co-preneurs, provided practical implications for couple entrepreneurs facing real difficulties, and interdisciplinary research. It is significant in that it provided the theoretical basis for educational and policy support.
자궁 내막암에서 p53, p21WAF1 그리고 Ki-67의 발현
허훈(Hoon Hur),이선경(Sun Gyung Lee),김승보(Seung Bo Kim),이주희(Joo Hee Lee),김교영(Kyo Young Kim) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.8
Objective : To identify of high-risk groups in endometrial carcinoma, we evaluate the prognostic significance of certain tumor biomarkers for cell proliferation(Ki-67) and cell-cycle regulation.(p53 and p21) Methods : 21 patients diagnosed with endometrial carcinoma between 1992 and 1999 in who were treated at Kyung Hee university medical center were studied. Using paraffin-embedded tumor tissue, immunohistochemical staining was done. Chi-square test was used to know the relationship between p53, p21, Ki-67 expression and clinicopathologic parameters and the relationship between p21 expression and p53, Ki-67 expression. Kaplan Meier survival analysis and log rank test were used to know the relationship between p53, p21, Ki-67 expression and patient's survival. Results : p53 and p21 expressions were seen in 52.4% and 85.7% of endometrial carcinoma. There were statistical significance only between p53 expression and poor histologic grade, lymphovascular space invasion and between Ki-67 expression and poor histologic grade, advanced stage. We could not find any relationship between p21 and p53 expression. Conclusion : Expression of p21 was not correlated with p53 expression. In the present study we suggested that p21 and Ki-67 expression could not be utilized as a good prognostic factor in endometrial carcinoma. p53 expression considered as a prognostic indicator in patients with endometrial carcinoma.
同種肺組織 및 Adjuvant 反復注射家兎의 肺病變에 關한 病理組織學的硏究
金敎英 中央醫學社 1968 中央醫學 Vol.15 No.4
It is well known that dead or damaged tissue acts as an irritant to the individual and can cause an inflammatory lesion, but the mechanism concerning to it is yet unknown. An experiment on rabbits was carried out to observe if any inflammatory lesion could occur in them by repeatedly injecting them with homologous lung tissue and Freund's complete adjuvant, and then to explore the mechanism for it. 4 groups of .animals were injected subcutaneously with Freund's complete adjuvant, lung tissue, lung tissue plus Freund's complete adjuvant and brain tissue plus Freund's complete adjuvant, respectively. One more animal groups were injected with physiological saline solution, as normal control. The results obtained were as follows: 1) The lungs of the main animal group, which received lung tissue plus Freund's complete adjuvant, showed marked histopathological changes, namely, interstitial pneumonitis (consisting of small round cell infiltration to alveolar septum and stroma, and proliferation of fibroblasts), granulomatous inflammation and thickening of small arterial walls. 2) The lungs of the first control animal group, which received Freund's complete adjuvant only, also showed some changes resembling those of the main group, but in lesser degree. 3) The lungs of the second control animal group, which received lung tissue only, showed slight changes of the same type, but in far lesser degree as compared with the former two groups. 4) While the lungs of the third control animal group, which received brain (instead of . lung) plus Freund's complete adjuvant, showed lesser inflammatory changes of the