《中图法》网络版研究

分析了《中图法》作为网络信息分类法的主要原因，探讨研究了《中图法》网络版的编制原则、《中图法》网络版的特征以及《中图法》网络版的编制。目的是促进对《中图法》网络版的研究，实现图书分类与网络信息分类的规范与统一。     

《中国图书馆分类法》“中国地区表”运用刍议

“中国地区表”是《中图法》的一个通用复分表，在图书分类中，经常要用“中国地区表”对图书资料进行复分。《中图法》第四版在二版、三版的基础上作了补充修订，使分类人员能更好地掌握它的标引规则，提高分类的质量，避免标引混乱，但在实际运用中，仍有一些同类同地区的图书资料不能集中，本文例举了一些图书资料分析说明“中国地区复分表”的使用规则和方法。     

浅谈信息技术在知识管理中的作用

1、图书馆是对知识进行管理的量早部门之一。有趣的是，知识管理的概念是企业界最先提出来的。尽管图书馆在从它产生之日起就开始对知识进行保存、组织、管理、挖掘、传播和利用，但它并没有最先提出知识管理这个概念。但这并不妨碍图书馆成为对知识进行管理的最早的部门。中国古代很早提出的经史子集四部分类法就是知识管理的明证。这一点相信任何一个人都不会否认的。     

Novel dental pattern in a Mesozoic mammal

Therian mammals have two families of postcanine teeth,premolars and molars, which primitively are morphologically distinct, but within each family, structure of the crowns changes in an evenly graded series from mesial to distal loci. Here we report a new Mesozoic basal therian in which the boundary between premolars and molars istransi tional but the molars form three abruptly discontinuous morphological grouos. containinh m1, m2-4.     

论郑樵的目录学思想与成就

郑樵是我国十二世纪著名的史学家、藏书家和目录学家.郑樵关于图书分类以及目录学的一些具体原则,大都是总结历代及当时经验得出的结晶,非常可贵.他的<书有名讯实不亡论>是辑佚学的理论基础,<求书遣使校书久任论>是欧阳修思想的发展.郑樵是我国古代目录学史上的巨人,<通志@校雠略)对后世有深远的影响.     

关于组合数学的若干基本思想方法

组合数学的组合方法繁多，本通过实例，对组合数学中若干基本方法进行了阐述。     

SiC结构的多型性

本文介绍了ＳｉＣ结构的多型性及其表示方法，总结了迄今为止已发现的１６０余种多型体，并介绍了本文作者的一个新的多型体１１４Ｒ－ＳｉＣ，ＨＪ１。     

浅析等级列举式分类法与分面组配式分类法

比较分析了等级列举式分类法、分面组配式分类法的结构原理、体系结构、类号组合、检索效率、功能作用、主要特点等方面， 从而得出分面组配法是现代分类法的发展方向。     

中国古代陶瓷综合分类方法及类别研究

古陶瓷的分类是古陶瓷科学研究的主要课题之一,但至今还没有一个统一的、规范性的国家标准。集各种分类方法的优点和精华,并在对中国古陶瓷制造的原料、烧制的窑式、烧制温度、代表品种、工艺特点、外观特征、化学组成等“内在”质地和“外在”形态方面进行详细的归类、分析和比较的基础上,把中国古陶瓷各时期的科技发展内涵和时代信息结合、统一在一起,中国古代陶瓷被分为六大类。期望这种分类能为文物工作者及文物爱好者对古陶瓷的修复保护、断代和断源、科学管理、辨别真伪提供比较科学、可信度较大有效参考。     

Characterization of a PDR type ABC transporter gene from wheat （Triticum aestivum L.）

DON, as a virulence factor, plays an important role in the infection of Fusarium graminearum in wheat. The infection ability of F. graminearum depends on its capacity of producing DON. The production of DON by F. graminearum is significantly decreased in the wheat varieties with scab resistance. In this study, GeneChip analysis indicated that an EST encoding an ATP-binding cassette （ABC） transporter was up-regulated by 45 times in a wheat landrace Wangshuibai, which is resistant to DON accumulation. A pair of EST-derived primers were designed based on the EST sequence, and a clone was then isolated from a wheat genomic DNA TAC library. The TAC clone was sequenced using chromosome walking and gene prediction was conducted using Softberry. A cDNA clone of this gene was subsequently isolated from Wangshuibai induced by DON using gene-specific primers designed according to the untranslated sequence of the gene. The genome size of the gene is 7377 bp, consisting of 19 exons with coding sequences of 4308 bp. It encodes a protein with 1435 amino acid residues and the calculated molecular weight is about 161 kD. BLAST analysis indicated that the gene may belong to pleiotropic drug resistance （PDR） sub-family, and hence designated as TaPDR1 （Triticum aestivum pleiotropic drug resistance）. TaPDR1 was located on chromosome 5A of wheat using nullisomic-tetrasomic lines of Chinese Spring. TaPDR1 was up-regulated by induction of both DON and F. graminearum. Expression patterns of TaPDR1 were different in wild-type Wangshuibai and the fast-neutron induced Wangshuibai mutant lacking FHB1, a major QTL of FHB resistance and DON resistance in chromosome arm 3BS. These results suggested that TaPDR1 might be a candidate gene responsible for DON accumulation resistance. The expression profile showed that TaPDR1 expression was neither induced by hormones typically involved in biotic stress, such as JA and SA, nor by abiotic stresses, such as heat, cold, wounding and NaCI. However, TaPDR1 expression was regulated by Al^3＋ and [Ca^2＋], indicating that [Ca^2＋]1 might mediate the signal of TaPDR1 expression.