云南省七个少数民族的肤纹参数及聚类分析

本文报告了云南省白族、布朗族、彝族、回族、傈僳族、怒族、基诺族共七个少数民族的肤纹参数。差异显著性测定及聚类分析表明这几个民族间的肤纹参数有很大差异,基诺族与他们的差异最大。各民族同名指(区)的对称组合格局有同型亲和性,左右对称呈非随机组合。

A NEW METHOD OF IMAGE PROCESSING TECHNIQUE APPLIED TO CHROMOSOME RECOGNITION AND COUNTING

This paper describes a new method based on Four Neighbor Distance Transformation (FNDT) and Equal Diagonal Algorithm (EDA) to extract the medial axis and locate the centromere of the chromosome Compared to the Classical Thinning Algorithm and Four Neighbor Distance Transformation, the new method (FNDT-DEA) is more noise-tolerant, simpler in programming and faster in execution. The FDNTEDA provides the connective and one-pixel thick medial axis representing the length of chromosome. The Crofton directive parameters were used in the algorithm to locate the centromere in some chromosome. The number of chromosomes in a given cell is obtained with calculating either the Euler Number or the clase-curve’s subset. An intergroups classifier has also been designed. The FNDT-DEA gave results quite similar to those given with human assessment. It was concluded that this new method, FNDT-EDA, is appropriate for microcomputer-based analyzing the human chromosomes.

人胃癌细胞株7901染色体均染区和双微体的探讨

人胃癌细胞株７９０１染色体均染区和双微体的探讨薛建静，苏宇滨，陈诗书肿瘤细胞的染色体通常是非整倍体，有染色体易位、丢失等。自染色体分带技术运用于人类肿瘤研究，发现有些癌组织染色体出现非随机的改变［１］。这种改变仅存在于恶性肿瘤并与肿瘤的恶性程度和肿瘤...

克氏综合征的自身免疫研究——血清抗精子抗体形成的机理探讨

本文用ＥＬＩＳＡ和组织活检的方法测定了４５例克氏综合征患者血清中ＩｇＧ、ＩｇＡ和ＩｇＭ型抗精子抗体的含量，并观察了其睾丸组织学的变化。结果表明：（１）克氏综合征患者血清ＩｇＧ型抗精子抗体的阳性率为６２％；ＩｇＡ型抗体为２％；ＩｇＭ型为１５．６％。（２）睾丸组织学表现为唯支持细胞综合征。由此可见，克氏综合征患者体内存在自身免疫现象。