Morphological transformation of human keratinocytes expressing the LMP gene of Epstein-Barr virus.

The association of Epstein-Barr virus (EBV) with nasopharyngeal carcinoma (NPC) has been known for some time, but the precise role of EBV in this cancer is poorly understood, due partly to the lack of an in vitro system for studying NPC cells and the effect of EBV on epithelial cells. Biopsies of NPC tumours have revealed expression of the EBV latent membrane protein (LMP) in 65% of cases, suggesting that in at least some NPC tumours LMP may contribute to cell transformation. Here we address the question of the effect of LMP expression on epithelial cells. Transfection of an immortalized, non-tumorigenic keratinocyte cell line (RHEK-1) with the LMP gene causes a striking morphological transformation: the originally flat, polygonal colonies change to bundles of spindle-shaped cells that form multilayer foci, and cytokeratin expression is down-regulated. Our results suggest that LMP expression may be an important causal factor in the development of NPC.     

杏核壳制炭分子筛研究

用两步炭化法由杏核壳制备变压吸附空分制氮用炭分子筛，考察了一次炭化温度和二次炭化温度对产品空分性能的影响，并利用吸附分子探针法对产品微孔结构进行了表征。结果表明，作为粘结剂的煤焦油在二次炭化过程中裂解积炭，改善了二次炭化产品的微孔结构和空分性能。     

无规扩散类反应表面生长动力学行为

研究了无规扩散类表面生长的动力学和标度行为，研究了两种粒子（Ａ、Ｃ）在二维衬底上的聚集．当Ｃ粒子的几率ｑ＝０时，系统表现出泊松生长．当ｑ≠０时，表面表现出粗化的形貌特性，存在着粗化转变．对Ｃ粒子扩散步长以及扩散几率对粗化转变的影响也进行了研究     

论新形势下的图书馆服务

市场经济发展的社会大环境客观上迫使图书馆进入社会的“经济圈”，面对新形势的挑战，图书馆服务必须尽快实现由传统型服务向现代化服务的转变，强化市场服务机制，努力挖掘并满足社会需求，以促进图书馆事业的发展。     

少年速滑运动员最佳呼吸效率点及对应参数的研究

本文以连续递增负荷的踏车运动，测定了３４名少年速度滑冰运动员在不同工作负荷时的通气量、吸氧量、心率、最大吸氧量、呼吸当量曲线，确定了最佳呼吸效率点及生理参数，从理论上探讨了最佳呼吸效率点在运动训练中的作用，为少年速滑运动员的训练工作提供科学依据。     

Uptake of L-glutamate and L-aspartate in neurones and glial cells of cultured human and rat spinal cord.

Autoradiographic investigations on the uptake of L-glutamate and L-aspartate have shown that the amino acids were taken up by neurones as well as by glial cells of cultured human and rat spinal cord. The activity of glutamate and aspartate varied considerably between individual neurones, whereas glial cells showed a more even distribution of the labelled amino acids. Our results suggest that both neurones and glial cells are involved in the uptake of amino acid transmitters.     

南京市女子体操后备人才资源的现状研究

为了解南京市女子体操后备人才资源的现状,进一步提高南京市女子体操的水平,运用文献资料、访问调查和问卷调查等研究方法,结合第十六届省运会体操比赛,对南京市女子体操后备人才的数量、质量等方面进行研究。结果表明:南京市女子体操团体和全能优势明显,各单项水平均衡;招生困难与人才流失造成了后备人才数量紧缺。     

对高校思想政治教育工作的思考

复杂的社会环境,膨胀的学生人数,就业的巨大压力,网络中的迷失等等,给高校思想政治教育工作带来了新的挑战。如何加强和改进高校思想政治工作,本文从提高"两课"教学质量,引导学生参与社会实践,良好校园文化氛围的创设,加强网络资源的建设和管理,构筑学校、社会和家庭多途径、多层次的教育网络等方面进行了阐述,旨在探索高校思想政治教育的新途径,革新教育方法,增强教育效果。