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후두 및 하인두 암종에서 p53단백 발현과 Espstein-Barr Virus 검출
최영환,도남용,나한조,이도용,노용훈,김완수,최종선 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2
Background and Objectives : When p53 cancer suppressor gene, occurs gene deletion or point mutation, malignancy develops by loss of p53 function with abnormal p53 protein. The Epstein-Barr virus (EBV) is the causative agent of certain type of lymphoma and undifferentiated nasopharyngeal carcinoma. However, the role of EBV as a causative factor in other head &eck tumors is not fully elucidated except nasopharyngeal carcinoma. This study, the author examined that p53 expression and detection rate of EBV correlate to development of laryngeal and hypopharyngeal squamous cell carcinoma(SCC) and play the possible role of prognostic indicators. Materials and Methods : Formalin-fixed, paraffin-embedded tissue specimen from 32 cases of larynx and hypopharyngeal squamous cell carcinomas were studied by immunohistochemical staining for p53 and EBV. The results of analysis were compared with clinicopathological parameters. Results : p53 expression was 56.3% (18 cases) and the detection rate of EBV was 43.6% (14 cases) of 32 cases in laryngeal and hypopharyngeal squamous cell carcinomas. p53 expression was correlate with histologic grade (p<05) only. Detection of EBV was not correlate with clinicopathological parmeters. Conclusion : These results suggest p53 expression and the detection of EBV may be related with development of laryngeal and hypopharyngeal squamous cell carcinoma. And, the expression of p53 protein can be used as a prognosticator in laryngeal and hypopharyngeal squamous cell carcinoma under certain limitation.
金煥起,梁奉龍,李正元 全北大學校 附設 都市및環境硏究所 1990 都市 및 環境硏究 Vol.5 No.-
This paper was the study on the change of the water quality an water quality management of reservior when Yong-dam dam constructed. The results obtained are as follows, water quality of river in surroundings area was BOD 1-2 ㎎/ℓ, TKN 1 ㎎/ℓ, T-P 0.03-0.013 ㎎/ℓ. Results from calculatin of the pollution loading of conteminations according to environmental factor, water quality was calculated to BOD 0.87 ㎎/ℓ, T-N 0.07 ㎎/ℓ. Because of increased of inlet nutrient, nutrient conditions in Yong-dam reservior will generated to eutrophication. Therefore, methods for control and management nutrition conditions are must be intercept and control to inflow of nutrient that included to water and wastewater.
丘龍完 水原大學校 1987 論文集 Vol.5 No.-
This paper described the modification and complement of XINU operating systems to allow possible real time operating systems. The IPC machanism was developed. It is not onle optimally inserted into the communication layer of kernel for efficient synchronyzation of the processors which exist many site, but also applied to workstation based on LAN. For these purpose, the events and semaphores are introduced and designed for solving the synchronization and cooperation problems.
김용완,강민제 제주대학교 산업기술연구소 2000 尖端技術硏究所論文集 Vol.11 No.2
This paper shows that the capacitance of the input space of the neuron affects the point of convergence of the output of the neuron in Lapunove energy function for Hopfield neural network. And this paper also shows that the gain factor of sygmoid function affects the shape of energy map and the point of convergence of the output of the neuron.
6개 원소로 이루어진 짝이중결합화합물과 R_2AsCI와의 반응
주완철,이용암,유응철 성균관대학교 기초과학연구소 1986 論文集 Vol.37 No.2
From the reactions of orthohydroxy-6-membered conjugated system, benzil-mono-orthohydroxyanil, with Me_2AsCl and chloro [Toluene-(2, 3)-dithiolato(2)] arsenic (Ⅲ), reaction products was isolated. From the IR and NMR-spectroscopic analysis for these reaction products, it is confirmed that reaction products are charge-transfer complexes of As. From these results, we found that the chemical behaviour of trivalent As is not analogous to trivalent P.