三色伊蝇蛆病流行规律和环境防治

三色伊蝇蛆病流行规律和环境防治严如柳，陈美，刘荫奎，黄秀莲（厦门大学生物学系）（仙游县畜牧兽医站）三色依蝇（ＩｄｉｅｌｌａｔｒｉｐａｒｔｉｔａＢｉｇｏｔ），幼虫在猪舍里，夜间钻进猪皮肤吸吮血液，引起蝇蛆病．本病在国外尚未见报道，国内主要见于江苏省的江...     

局部紧致群的一个性质

发展了 Ｄｉｅｕｄｏｎｎｅ在局部紧致群上定义的著名性质（Ｐｐ），在局部紧致群上建立并讨论了性质（βＰｐ）这个性质可以用来刻划作者于 １９８５年提出的局部紧致［ＩＡ］群．     

黎曼流形中常平均曲率子流形的第一特征值

设M~n是浸入在n+p维黎曼流形S~(n+p)中的n维紧致子流形,∧表示M~n上的拉氏算子,本文得到了∧的第一非零特征值的下界和上界。     

四峰映射四倍周期分岔度量普适性的重正化群分析

 对四峰映射四倍周期分岔进行重正化群分析,获得了相应的重正化群方程组,并求出其普适函数和度量普适常数的数值解.     

Analysis of components of conserved “backbone sequences”among genomes of Shigella spp. strains

Difference in the genomic compositions of prokaryotes is the basis of the diversity in their biological characters. However, besides their flora-or strain-specific genes,those floras with closer relationship in the evolution also have conserved “backbone sequences”, which reveal the marks of their origin and evolution, and these “backbone sequences”are just the basis of their elementary living abilities and common biological properties. Shigella is very closely related to E. coli in the origin and evolution, and may turn out to belong to the same genus. In this study, a microarray containing E. coli K-12 whole genome and Sf301 specific ORFs is used to investigate the genomic components of four Shigella strains. The results indicate that 16%-22% K-12 ORFs sequences are not detected in the genome of Shigella strains while the genome of Shigella contains at least 2800 conserved ORFs, which compose the common “backbone sequences”.Advanced analysis indicated that the “backbone sequences”are the essential components in maintaining the normal physiological activities of intestinal bacteria. Furthermore,only 20% Sf301-specific ORFs exist in other strains simultaneously, which demonstrate the great genome heterogeneity and the genetic diversity among the strains.     

A minimal axiom group for rough set based on quasi-ordering

Rough set axiomatization is one aspect of rough set study to characterize rough set theory using dependable and minimal axiom groups. Thus, rough set theory can be studied by logic and axiom system methods. The classic rough set theory is based on equivalent relation, but rough set theory based on reflexive and transitive relation (called quasi-ordering) has wide applications in the real world. To characterize topological rough set theory, an axiom group named RT, consisting of 4 axioms, is proposed. It is proved that the axiom group reliability in characterizing rough set theory based on similar relation is reasonable. Simultaneously, the minimization of the axiom group, which requires that each axiom is an equation and each is independent, is proved. The axiom group is helpful for researching rough set theory by logic and axiom system methods.     

课程体系优化的系统观及系统方法

提出了一个课程体系优化的系统结构模式 ,从外部环境与内部结构的相互作用上区分了课程体系改革及优化必须考虑的因素 ;给出了一个课程体系优化的系统工程程序 ,将课程体系的改革及优化划分为 5个基本环节 ,重点论述了如何从“课程体系→课程群→主干课程”实现递阶控制及 3级优化的思路 ;最后 ,给出了课程体系优化的指标体系及评价模型 ,以此完成高师地理学专业课程体系优化设计 .     

基于Lotus Notes的MIS系统开发的研究与实践

简要介绍公文流转型MIS系统的特点,Lotus Notes的优势,阐述《宜晶超高压管理处办公自动化系统》的设计思想,设计方案,系统实现,并对开发过程中灵活设置公文流转,自动会签功能及利用文档链接技术简化流程等关键问题的解决方法和技巧提出见解。     

多复变中Dp和H∝及βp空间的一些关系

在 Cⁿ中的单位球上, 讨论了Dirichlet 型空间D_p和广义Bloch空间β^q的相互包含关系以及D_p 和Hardy空间H^∝之间的点乘子,根据 p 的一些不同情形对M(H^∝, D_p ) 和 M( D_p , H^∝) 进行了刻划.     

"3S"技术应用对构建高师地理学专业新课程体系的思考

" 3S"技术的应用给地理科学带来了新发展,对地理学高级专业人才素质提出了新要求.迫切要求新技术研究、开发与教育改革相结合,高师地理科学专业课程体系的构建,要面向未来,体现地理学科信息化发展的趋向.本文以" 3S"技术应用、发展为平台,提出高师地理科学专业课程体系的构建的知识--技术体系,以及专业课程的模块--课程群,对地理学人材培养具有的意义.