安徽省中药资源优势和永续利用

介绍了安徽省中药资源的地理、人文等环境特点,尤其对安徽地道药材、优质药材以及特色民间药作了概述,并提出了永续利用中药资源的建议.     

A comparison of efficiency of manual and automatic fibres search with the Maxcan fibre finder

The aim of this work was to study the efficiency of automatic fibre searching with the Maxcan fibre finder (Cox Analytical Systems, Sweden) in comparison to manual searching. The influence of some parameters (color, thickness, background noise) on the results of a fibre search was considered. Eighteen experimental tapes with different target fibres and different background noises were prepared in the laboratory. Searching of fibres was performed manually and with the Maxcan fibre finder by different operators from four European laboratories. Two laboratories have the Maxcan fibre finder system and the two instruments were used and compared in this study. The results show that searching with the Maxcan is generally as efficient as manual searching, except for very pale or very dark fibres. Note that the tapes used for these experiments were prepared in laboratory, and are not completely representative of the tape that could be obtained in real cases. To generalize the results obtained, further research on real case samples would be necessary.     

人力资源开发的基本理论与基本方法

国家之间的竞争实质是人才的竞争,人才竞争的实质是人才制度的竞争和人力资源开发 水平的竞争。我国必须有效地开发和利用我国现有的人力资源,建立合理的人力资源管理模式,创造出 一套既符合国际规范、又适应中国国情的人力资源开发的理论、方法与技术。     

对邓小平理论创立过程的两点思考

邓小平在 1973年以前就已经在他的表象中形成了自己的关于什么是社会主义、什么是马克思主义 ,以及在我国如何建设社会主义的思想观念 ,《邓小平文选》第 2卷和第 3卷中的所有文章 ,构成了一个内容比较完备的思想体系 ,描绘了一幅建设有中国特色社会主义的壮丽画卷 ,因而那种认为邓小平理论是邓小平在我们党的十一届三中全会以后分阶段逐步创立起来的观点是不能成立的。     

当前世界经济形势分析

世界经济强劲复苏,2004年达到30年来最高点,全球贸易急剧攀升,国际直接投资处于恢复性增长;美国仍是世界经济科技的主导,日、欧经济复苏缓慢,中国经济最具活力。体现世界经济发展的实质内容有:全球科技争夺与主导产业选择,国际对外投资与引进外资,企业超规模化与跨国公司并购,国际汇率波动与金融风险,能源争夺与经济发展瓶颈。     

Reference ballistic imaging database performance

Ballistic imaging databases allow law enforcement to link recovered cartridge cases to other crime scenes and to firearms. The success of these databases has led many to propose that all firearms in circulation be entered into a reference ballistic image database (RBID). To assess the performance of an RBID, we fired 4200 cartridge cases from 600 9 mm Para Sig Sauer model P226 series pistols. Each pistol fired two Remington cartridges, one of which was imaged in the RBID, and five additional cartridges, consisting of Federal, Speer, Winchester, Wolf, and CCI brands. Randomly selected samples from the second series of Remington cartridge cases and from the five additional brands were then correlated against the RBID. Of the 32 cartridges of the same make correlated against the RBID, 72% ranked in the top 10 positions. Likewise, of the 160 cartridges of the five different brands correlated against the database, 21% ranked in the top 10 positions. Generally, the ranking position increased as the size of the RBID increased. We obtained similar results when we expanded the RBID to include firearms with the same class characteristics for breech face marks, firing pin impressions, and extractor marks. The results of our six queries against the RBID indicate that a reference ballistics image database of new guns is currently fraught with too many difficulties to be an effective and efficient law enforcement tool.     

银杏叶提取物对豚鼠肠系膜下神经节细胞生物电的影响

目的：通过观察银杏叶提取物(EGb)对交感神经节细胞生物电的影响，为进一步探讨EGb调节肠系膜下神经节(IMG)支配的包括远端结肠在内的内脏功能活动的作用机制提供依据。方法：采用细胞内生物电记录技术记录体外IMG电位。结果：在敏感细胞，EGb761(35～350mg／L)可使71．0％的肠系膜下神经节细胞产生膜去极化反应，且在一定范围内呈现剂量效应关系；19．4％的细胞超极化；9．7％的细胞出现先超极化后去极化的双相反应。去极化反应的细胞其膜电阻有降低、增大和不变等多种表现。此去极化反应可被低钙．高镁克氏液部分阻断，但不为胆碱和肾上腺素受体阻断剂所阻断。还发现EGb761可抑制外源性5-HT引起的去极化电位。结论：EGb761对IMG细胞可能通过非胆碱能、非肾上腺素能通路产生易化作用；其机制可能与影响其他递质的释放有关。