广西铺道蚁属昆虫研究(膜翅目:蚁科)

报道采自广西的铺道蚁属Ｔｅｔｒａｍｏｒｉｕｍ昆虫１０种,其中５种为广西区新记录种,即：茸毛铺道蚁Ｔ．ｌａｎｕｇｉｎｏｓｕｍＭａｙｒ、陕西铺道蚁Ｔ．ｓｈｅｎｓｉｅｎｓｅＢｏｌｔｏｎ、史氏铺道蚁Ｔ．ｓｍｉｔｈｉＭａｙｒ、相似铺道蚁Ｔ．ｓｉｍｉｌｉｍｕｍ（Ｓｍｉｔｈ）和克氏铺道蚁Ｔ．ｋｒａｅｐｅｌｉｎｉＦｏｒｅｌ。标本保存于广西师范大学生物系标本室。提供广西该属已知１０种的工蚁分种检索表。     

反义基因逆转肿瘤细胞多药耐药性和诱导细胞凋亡的研究

探讨克服肿瘤细胞多药耐药（ＭＤＲ１）性的方法,提高化疗效果。本文采用多药耐药反义基因（ＭＤＲ１－ＲＳＰＳ－ＯＤＮ）逆转Ｋ５６２／ＡＤＭ肿瘤细胞的ＭＤＲ１,诱导肿瘤细胞凋亡,发现ＭＤＲ１－ＡＳＰＳ－ＯＤＮ诱导Ｋ５６２／ＡＤＭ细胞株细胞产生大量ＤＮＡ断片,ＦＡＣＳ检测发现几乎全部ＭＲＤ＋Ｋ５６２／ＡＤＭ细胞发生凋亡。其结果表明ＤＭＤＲ１－ＡＳＰＳ－ＯＤＮ能有效、特异地抑制ＭＤＲ１基因表达,逆转肿瘤细胞的ＭＤＲ１,促进阿霉素诱导ＭＤＲ＋１Ｋ５６２／ＡＤＭ细胞凋亡,为其临床应用提供理论依据     

新型钢管砼框架节点试验研究及其应用

给出了钢管混凝土框架节点的试验结果,并采用有限元法对新型节点模式进行了应力场分析。介绍了该新型节点的设计方案及在实际工程中的应用。     

离散正交小波包及其在噪声抑制中的应用

研究有限长序列的小波包处理和噪声抑制的方法,方法用正交共轭滤波器构造有限维内积空间的正交值和分解及有限长离散小波包,分析了噪声的小波包分解系数的特性,并提出小波包变换域降噪的方法。     

The realization and structure of complete Lie algebras whose nilpotent radicals are Heisenberg algebras

The realization and siructure of complete Lie algebras whose nilpotent radicals are Heisenberg algebras over the complex field C are given.     

Origin of immature sulfur-rich oil in Jianghan oil field

Chemical structure of immature sulfur-rich kerogen and composition of immature sulfur-rich crude oil in Jianghun oil field have been studied. In molecular level, crude oil differs from thermolysed and chemolysed products of kerogen but does resemble the bitumen in immature sulfur-rich source rock. Therefore, immature sulfur-rich oil may be derived from the expelling of bitumen rather than from thermal cracking of kerogen.     

Cloning, construction of prokaryotic expression vector and expression ofEscherichia coli cytosine deaminase gene

Cytosine deaminase gene ofEscherichia coli strain H-30 was cloned, and its initiation codon of ‘GTG’ was mutated to ‘ATG’ by PCR. Prokaryotic recombinant expression vector pBV220-CD was constructed. Clone with high enzyme activity were selected by detecting their specific activity of cytosine deaminase. 5-FC(5-FC, 5-fluorocytosine) could induce the lethal toxicity to cells containing active CD gene. DNA sequence analysis indicated that there were 16 altered bases and 5 of them resulted in the alteration of amino acids in predicted peptide by comparing DNA sequence of the clone H-30-CD-11 with high enzyme activity with CD gene reported in Gene Bank.     

1673K下BaO-BaF_2-Cr_2O_3渣系的热力学性质

１６７３Ｋ下,采用－ＭｏＣｒ＋Ｃｒ２Ｏ３ＺｒＯ２（ＭｇＯ）｛Ｃｕ＋Ｃｒ｝ａｌｏｙ＋（Ｃｒ２Ｏ３）ｓｌａｇＭｏ＋固体电解质电池测定了ＢａＯＢａＦ２Ｃｒ２Ｏ３渣系中Ｃｒ２Ｏ３的活度．研究结果表明,Ｃｒ２Ｏ３的活度随其浓度升高而升高,随ＸＢａＯ／ＸＢａＦ２升高而降低．根据实验及Ｘ射线衍射结果推测了该渣系的等温相图,并作出了该渣系中Ｃｒ２Ｏ３的等活度图．     

吸收比-系数倍率法及其应用——水杨酸钠、安替比林和咖啡因的同时测定

用吸收比－系数倍率法同时测定撒痛风注射液中水杨酸钠、安替比林和咖啡因三组分的含量。它们的回收率分别为１００．７％～１０２．１％、９５．９３％～１０４．５％和９７．５７％～１０１．７％。