近代中国科学技术落后的思考

中国曾经创造出遥遥领先于西方一千多年的灿烂的古代科学技术．但是，从１７、１８世纪以后，中国科学技术却开始滑坡，被此时取得高速发展的西方科学技术远远地抛到了后面．这一历史大换位，成为人们关注的问题．本文通过纵向和横向比较，综述了近代中国落后的史实，探析了落后的历史经济原因、政治原因和政策原因．警示今人记取史训，努力振兴中国现代科技     

Effect of volatile anesthetics on the circular dichroism of bilirubin bound to human serum albumin

The characteristic circular dichroism of bilirubin bound to human serum albumin undergoes a remarkable sign inversion on addition of halothane, chloroform and other volatile anesthetics. This sign inversion, which is completely reversed by removal of the anesthetic, reflects a pronounced conformational change of the bound ligand; probably a complete inversion of chirality. The observation suggests that association of volatile anesthetics with proteins can markedly alter the internal topography of receptor sites and potentially influence the stereoselectivity of ligand binding.     

几个求和公式的推导

本文利用差分的方法，推导出几个常见的求和公式。     

最优吸收截面的存在性

对被真空包围的无穷平行平板，运用勒贝格控制收敛定理和Ｃａｕｃｈｙ－Ｓｃｈｗａｒｔｙ不等式，给出稳态中子迁移系统最优吸收截面的存在性。     

混合氯化稀土催化合成DOP,DOM和DOA

本文报道:价廉的混合氯化稀土,对合成DOP等增塑剂有明显的催化效果。产品精制简单,转化率高,有应用前景。     

射影点的几何作图

在射影平面的扩大平面模型上的已知射影坐标系下，本文解决了已知射影坐标，几何地作出它所对应的点；已知一射影点，几何地求出这个点的射影坐标三数组这两类基本问题。     

梯形网络的简易解法

为简化无穷多阶梯形网络输入阻抗的计算,采用了菲波那契数列方法,较现行求输入阻抗的传统计算方法简便、快捷、准确,使该类问题的计算更为方便.     

Ces_p(E_1,E_2)的k一致凸性

文章讨论了Banach空间的k一致凸性在Ces_p(E_1,E_2)中的提升问题.     

Host cell reactivation of ozone-treated T3 bacteriophage by different strains ofEscherichia coli

Summary Host cell reactivation capacity for ozone T3 phage was determined for differentE. coli strains deficient in one or more of the DNA repair mechanisms. The results indicate that DNA polymerase I appears to play a key role in the repair of damage produced on the DNA by ozone while thelexA gene product seems to play a minor one.This research was sponsored by the National Sciences and Engineering Council of Canada. One of us (PLH) acknowledges a scholarship from the NSERCof Canada.     

整系数多项式是否存在有理根的几种判别法及应用

本文给出一类整系数多项式最多存在ｉ（ｉ＝０，１，２，…，ｎ－２）个有理根的判别法。并将文［３，４］中的主要结果作了进一步的推广。