服装行业电子商务平台建设构想

以电子商务提升服装行业核心竞争力为切入点，提出“动态整合联盟、电子商务平台构建设想，并从服装企业供应链角度阐述了该构想在网站建设方面的具体实施方案，最后总结了该构想塑造的服装行业电子商务所具有的竞争优势。     

软件扩展槽技术

软件扩展槽就是在软件成品中预留便于扩展的结构 ,目的是便于软件维护和升级。文章在面向对象、基于组件的软件工程与产品线工程基础上 ,讨论了软件扩展槽的实现原理、方法和对软件开发过程的影响     

含油废水处理技术进展

在分析国内外有关文献资料的基础上，综述了目前含油废水处理的一些新的工艺，新的技术及发展动态。     

非线形粘弹性流体的稳定化有限元方法研究

对遵循Oldroyd B型粘弹性动问题，提出了一种基于流线迎风Petrow-Galerkin方法和最小二乘法相结合的稳定化有限元方法。这种方法有效地解决了以往粘弹性流体研究过程中出现的由于应力方程对流控制占优引起的拟振动现象和有限元空间组合不匹配产生的不稳定现象。近似应力，速度和压力分别是Pk连续的，Pk 1和Pk的（k≥0)。假定连续问题满足充分光滑且小的解，则由不动点定理可得近似问题解的存在性及误差分析。     

GaAs光致发射极化电子源的原理及其在极化(e.2e)中的应用

GaAs半导体光致发射极化电子源是70年代末国际上出现的一种新型极化电子源。它采用GaAs半导体晶片作为光阴极，并在高真空环境下将碱金属铯及氧化剂镀到光阴极上，以获得负电子亲和势（Negative lectron Affinity）表面，然后通过用波长合适的圆偏振激光阴极，来获得自旋极化的电子束，详细讨论了GaAs半导体光致发射极化电子源的原理及实验过程，并介绍了极化电子在极化（e.2e)反应中的应用。     

Effects of truncated mutants of the ε subunit of chloroplast ATP synthase on the fast phase of millisecond delayed light emission of chloroplast and its ATP synthesis ability

The ε subunit of the chloroplast ATP synthase and the truncated ε mutants which lack some amino acid residues from the N-terminus or C-terminus were overexpressed in E. coil When the ε subunit or the truncated ε proteins was added to the spinach chloroplast suspension, both the intensity of the fast phase of millisecond delayed light emission (ms-DLE) and the cyclic and noncyclic photophosphorylation activity of chloroplast were enhanced. With an increase in the number of residues deleted from the N-terminus, the enhancement effect of the N-terminal truncated proteins decreased gradually. For the C-terminal truncated proteins, the enhancement effect increased gradually with an increase in the number of residues deleted from the C-terminus. Besides, the ATP synthesis activity of ε-deficient membrane reconstituted with the ε subunit or the truncated ε proteins was compared. The ATP synthesis activity of reconstituted membrane with the N-terminal truncated proteins decreased gradually as the number of residues deleted from the N-terminus increased. For the C-terminal truncated proteins, the ATP synthesis activity of reconstituted membrane increased gradually with an increase in the number of residues deleted from the C-terminus, but was still lower than that of the wild type ε protein. These results suggested that: (a) the N-terminal domain of the ε subunit of the chloroplast ATP synthase could affect the ATP synthesis activity of ATP synthase by regulating the efficiency of blocking proton leakage of ε subunit; and (b) the C-terminal domain of the ε subunit of the chloroplast ATP synthase had a subtle function in modulating the ATP synthesis ability of ATP synthase.     

Apoptotic cell death in the lactating mammary gland is enhanced by a folding variant of α-lactalbumin

Apoptosis is essential to eliminate secretory epithelial cells during the involution of the mammary gland. The environmental regulation of this process is however, poorly understood. This study tested the effect of HAMLET (human -lactalbumin made lethal to tumor cells) on mammary cells. Plastic pellets containing HAMLET were implanted into the fourth inguinal mammary gland of lactating mice for 3 days. Exposure of mammary tissue to HAMLET resulted in morphological changes typical for apoptosis and in a stimulation of caspase-3 activity in alveolar epithelial cells near the HAMLET pellets but not more distant to the pellet or in contralateral glands. The effect was specific for HAMLET and no effects were observed when mammary glands were exposed to native a-lactalbumin or fatty acid alone. HAMLET also induced cell death in vitro in a mouse mammary epithelial cell line. The results suggest that HAMLET can mediate apoptotic cell death in mammary gland tissue.Received 30 January 2004; received after revision 5 March 2004; accepted 16 March 2004     

"三个代表"重要思想如何进"两课"课堂

“两课”课堂是向大学生进行“三个代表”重要思想教育的重要途径,我们不仅要使学生了解“三个代表”重要思想的科学内涵,而且要使学生深入领会其精神实质。     

建构主义理论在计算机教学中的应用

该文通过对计算机类课程教学的设计与情景创设,阐明在建构主义教学模式下"以教师为主导,学生为主体"教学思想在计算机教学中的实现策略。