Inhibition of M-MuLV reverse transcriptase activity by fullerene derivatives

The biological properties and biomedical application of fullerene (C60) and its derivatives are currently very active subjects concerning fullerene research. The bio logical effects of fullerene and its derivatives include enzyme inhibition, sites-selective DNA cleavage, antibacterial and antiviral activities, photocytotoxicity and antiapoptosis[1―4]. Especially, enzymes inhibited by fullerene derivatives mainly consist of oxidation-reduc- tion related enzymes such as glutathione transferase…     

肉桂醛对X60碳钢的缓蚀行为的电化学研究

用动电位扫描法研究了在盐酸腐蚀介质中单组分肉桂醛缓蚀剂以及它与苯扎溴铵的协同效应对X60碳钢缓蚀作用的影响，并探讨了协同缓蚀机理．     

VRML场景中的智能替身研究

给出VRML场号中的智能替身模型，使得替身可以更好的理解用户的意图。首先，利用参数化的方法构造替身模型，使得用户可以更快捷的定制个性化的替身；在此基础上，分层次的动作模型实现了从高层的面向任务的动作到底层替身物理动作的高效分解与映射；最后，多通道的交互方式使得用户可以通过更自然的方式控制自己的替身。VRML场景中的智能替身研究为VRML多用户虚拟场景中替身交互，以及替身与场景交互的研究提供了基础。     

Application of annexation principle to the study of thermodynamic properties of Ag—Bi—In metallic melts

Based on the measured activities,the phase diagrams and the annexation principle,the calculating models of mass action concentrations for Ag-Bi and Ag-Bi-In melts have been formulated.The calculated results agree with practice and obey the mass action law,showing that the models formulated can reflect the structural characteristics of both melts.Meanwhile,it confirms that annexation principle is applicable to the Ag-Bi-In metallic melts.The melts involving eutectic which give rise to phase separation,and in which activcities exhibit positive deviation from Raoult‘s law is the basic cause of melts transforming from homogeneous to heterogeneous ones.     

中小学文学经典名著教学的行动研究

中小学的文学经典名著教学，存在着诸多不足与缺失，有必要引入“行动研究”对教学过程中所遇到的一些问题进行教改试验。通过对中小学文学名著教学所进行的阅读兴趣、效果优化和鉴赏能力的行动研究．不但可以取得一定的教改成效，还可以获得不少有益的启示，有利于推动文学经典名著教学的稳步发展。     

Cannflavin A and B,prenylated flavones fromCannabis sativa L.

Summary Two novel prenylat flavones, termed Cannflavin A and B, were isolated from the cannabinoid free ethanolic extract ofCannabis sativa L. Both compounds inhibited prostaglandin E₂ production by human rheumatoid synovial cells in culture.This communication is dedicated to the memory of the late Professor J. W. Fairbairn and the late Dr. J. T. Pickens. We are grateful to the Medical Research Council for a project grant and to Ms J. Elliot of King's College London for NMR spectra.     

我国民事诉讼撤诉制度存在的问题及解决对策

我国现行民事撤诉制度,因法律规范不够细致、可操作性较弱,弊端日益显现。本文通过分析现有制度的不足,借鉴国外合理做法,从平衡原被告平等诉讼地位,限制撤诉时间和次数,撤诉对诉讼时效的影响等几方面对制度改进提出了相应对策。     

篮球比赛中的防守假动作

随着篮球运动防守战术的发展,要求运动员在比赛中个人防守更具实效性和针对性。防守中假动作的运用丰富了个人防守技术动作,提高了个人防守能力,从而赢得了比赛的主动。     

几种氟哌酸衍生物的抑菌作用

通过对氟哌酸结构改进，获得了１３种氟哌酸衍生物，经药理实验对大肠杆菌、枯草杆菌、变形杆菌均有不同程度的抑菌作用，为开发新药做了初步探讨。