Drug testing in the transportation industry: The maritime case

The maritime industry provides an interesting case study of the design and implementation of drug-testing programs in the transportation industry during the 1980s. It is clear that such programs were designed and implemented less because of empirical evidence of safety problems than for political reasons. The results in the maritime industry are indicative of a program that is expensive to operate, intrusive with regard to employee privacy, and which will have little or no impact on safety. Focusing such programs on the issue of impairment rather than on the issue of drug usage per se is likely to improve the outcome of the programs. Although, despite common belief, there is little evidence that drug usage or the “drug problem” in U.S. society as a whole had gotten worse in the preceding years (Schonsheck, 1989, 250–251).     

Legalization of drugs: Effects on the workplace

In the last few years bipartisan support for legalizing drugs has grown to a surprising level. Because of the lack of involvement of the business community in this debate, we surveyed the human resource managers of 127 firms about their perceptions of the effects of legalization. Their responses were uniformly negative, with expectations that drug use, absenteeism, worksite crime, and liability costs would increase, while the quality and quantity of work would decline. They also forecast increases in drug testing, performance monitoring, and education and rehabilitation programs as a result.     

WTO与西部大开发战略的几个问题

中国加入WTO后，西部大开发战略的许多问题亟须在理论上深化，比如：西部大开发战略在中国加入WTO的前后是否有所不同，西部大开发的根本目标和实质会发生什么变化，东西部地区之间的差距会不会进一步扩大，西部开发的手段主要有哪些，西部地区能不能接替东南沿海地区淘汰的资本密集型和劳动密集型的产业，等等。     

电子商务物流研究

电子商务交易过程一般都包含信息流、资金流和物流。从目前来看,信息流、资金流都可以解决,而物流没能解决。本文从物流的产生、现状、研究的内容等方面阐述电子商务物流存在的问题,从核心业务竞争力、客户关系管理、个性化设计、物流配送和多元化服务等方面研究如何提升物流企业竞争力。     

拜泉县农业持续发展的生态经济系统分析

通过对黑龙江拜泉县农业生态经济系统进行以能流分析、物流分析和价值流分析为主要内容的系统诊断,提出该县通过生态经济综合建设,实现农业持续发展的方向与对策,并证明它是促进农村经济持续发展的一种有效方法。     

野生纤维之王——罗布麻

文章阐述了罗布麻纤维的物质组成、形态结构,探索了提取罗布麻纤维的初加工工艺流程,分析了其药用价值和纺织保健开发价值。     

桑叶配方颗粒物质基准研究

桑叶配方颗粒迄今尚没有统一的质量标准。为提升桑叶配方颗粒的内在质量,对其物质基准评价方法进行了研究。选取具有代表性产地的15批桑叶制备物质基准,采用高效液相色谱法,以芦丁、异槲皮苷、紫云英苷作为评价指标,确定桑叶物质基准的出膏率范围、标志性成分含量及转移率范围,采用超高效液相色谱法,建立物质基准UPLC特征图谱,并对其主要成分进行指认。结果表明:15批物质基准中,芦丁转移率为19.94%～34.05%,异槲皮苷转移率为11.67%～43.58%,紫云英苷转移率为10.73%～43.05%;物质基准特征图谱中,标定了14个共有峰,指认出7个色谱峰,分别为新绿原酸、绿原酸、咖啡酸、芦丁、异槲皮苷、槲皮素-3-O-(6″-O-丙二酰基)-β-D-葡萄糖苷、紫云英苷。所建立的基准评价方法为桑叶配方颗粒质量标准的制定及其后续大规模生产提供了数据基础。     

浅谈实质重于形式原则在会计核算中实务中的运用

随着经济的高速发展,新经济业务出现,必然会导致更多交易或事项的实质形式和经济形式不相符的情况.本文分析了在会计核算中的融资性租赁、售后回租、资产的确认和计量、关联方交易等经济业务的实质内容,阐述了坚持会计核算中实质重于形式原则的重要性.     

高效液相色谱法测定CHP与有关物质含量

采用Shim-pack CLC-SIL(4.6 mm×250 mm,5μm)色谱柱,建立了高效液相色谱法以乙腈-Ⅰ为流动相进行分离(其中Ⅰ为配制的稀硫酸溶液),二极管阵列检测器在230 nm波长处检测,测定CHP含量与有关物质。进样体积为10μL,流速为1 mL.min-1。     

物料配比中的微机控制系统

介绍了由微机、ＡＤＣ芯片、Ｉ／Ｏ芯片及其他辅助芯片来实现颗粒物料配比的一种方法。