An in vitro study of the accuracy and precision of Breathalyzer models 900, 900A, and 1000

Ninety Breathalyzer instruments (Model 1000) and twenty instruments (Models 900, 900A) were studied using a protocol described by the Department of Transportation's "Standard for Devices to Measure Breath Alcohol." Although the mean of each of three concentrations tested (0.05, 0.10, and 0.15 g/210 L) compared favorably in both series, the standard deviation was consistently higher for the Model 1000 instruments. The Model 1000 instruments also produced a significant number of test results which exceeded the normally expected scientific deviation.     

Heroin abuse and a gas chromatographic method for determining illicit heroin samples in Singapore.

The abuse of heroin (diacetylmorphine) in Singapore escalated sharply in 1975 and 1976, as indicated by the 35-fold increase in the number of heroin seizures and the 20-fold increase in the urine samples containing morphine since 1974. A rapid and simple GC method has been described to estimate diacetylmorphine (and caffeine). Monoacetylmorphine and acetylcodeine may be ascertained by an additional step involving acetylation. All gas chromatograms of a large number of samples analyzed consistently had the same pattern, indicating that they possibly had a common origin. This GC "fingerprint," together with the quantitative data, appears to be characteristic of the illicit Asian or Chinese type of heroin found in Singapore. The proportions of the four major ingredients in some twelve typical samples have been tabulated. Statistical data confirming the accuracy and reproducibility of the analytical method have also been presented.     

WTO体制下我国《商标法》的修改

2001年10月27日在我国加入WTO的前期,全国人大常委会对我国现行的《商标法》进行了一次全面的修改,不仅完善了我国的商标法律制度,同时也使我国知识产权法律规范更加符合WTO体制对知识产权保护的要求。本文对照分析Trips协议的规定和此次修改的内容,旨在说明此次《商标法》的修改与国际法律规则的成功接轨。     

论新世纪干部的“城市观”教育

21世纪的世界,将是城市化的世界。在我国强化对新世纪的干部——国家和城市的管理者的“城市观”的教育尤为重要。要遵循生产力发展的要求,教育干部树立正确的城市发展观;从人民群众的根本利益出发,教育干部坚持城市可持续发展观;以先进文化引领域市精神文明建设,教育干部树立学习型城市观。     

从治安学的研究看社区警务

社区警务是警察对社会现代化、民主化和城市化所做出的一种反应,也是社会自身结构日益分化、公共权力扩大并在区域层面上进行社会治安资源整合的一种表现,是一项复杂的系统工程。因此,从治安学的研究领域出发,通过对社区概念与特点的分析,来理解社区警务的本质,为指导社区警务工作的开展和落实提供理论支持。     

关于公安机关建立社会治安预警机制的几点构想

建立科学预警体系是公安机关提高应对危机的第一步,也是消除危机的第一步。建立预警体系需要建立网络严密的信息系统,保证信息来源的广泛性和覆盖面;建立信息工作管理、协调机构,完善情报信息工作的运作模式;建立科学分析模型、挖掘深层次的情报;情报信息将迅速的进入到决策层,为决策提供科学的依据。     

城乡统筹:城乡协调发展的政策机制

本文在分析城乡协调发展与城乡统筹的关系的同时,明确指出实施城乡统筹是先进生产力发展的必然要求,城乡统筹的实际含义是建立城乡协调发展的政策机制。在此基础上,本文就统一领导和统一管理、增强服务性管理职能和缩减控制性行政权力,以及保障和落实农民生产资料所有权等问题,分析了政府在城乡统等方面的改革路径。