当我们伴随着 Windows2000和ASP3.0进入21世纪时,发现微软在企业应用程序开发方面 扩展和改进了对开发人员来说非常有用的工具和技术。在前面两章中讨论了如何使用ASP和 com构建b应用程序。通过使用功能强大的IS,使用所选择的程序语言开发COM组件,使 b应用程序远远超越仅使用ASP脚本创建互相链接的简单网页的水平。可以开发安全高效的 基于组件的可扩展应用程序,以此来支持面向数以千计用户的业务处理

本章主要知识点: 一、电子计算机的诞生和发展 二、电子计算机的特点、用途和分类☆ 三、电子计算机系统的组成及工作原理☆ 四、微型计算机简介 五、计算机中信息的表示 六、计算机安全与计算机维护 七、多媒体计算机

Chapter 6. Laboratory animal facilities Those who use animals for experimental and diagnostic purposes have a moral obligation to take every care to avoid causing them unnecessary pain or suffering. The animals must be provided with comfortable, hygienic housing and adequate wholesome food and water At the end of the experiment they must be dealt with in a humane manner

As aerosols are important sources of infection, care should be taken to reduce the extent of their formation and dispersion Hazardous aerosols can be generated by many laboratory operations, e.g. blending, mixing, grinding, shaking, stirring, sonicating and centrifuging of infectious materials. Even when safe equipment is used, it is best to carry out these operations in an approved biological safety cabinet whenever possible

一、食品的安全性是研究分析食品中可能存在的有害或有毒物质对人的影响,分析食品原料及产品生产,贮藏及加工过程中人为导致的 污染和有害物质的产生,食品添加剂等对人的潜在危害

A basic knowledge of disinfection and sterilization is crucial for biosafety in the laboratory. Since heavily soiled items cannot promptly be disinfected or sterilized, it is equally important to understand the fundamentals of cleaning prior to disinfection (precleaning). In this regard, the following general principles apply to all known classes of microbial pathogens

The Laboratory biosafety manual has in the past focused on traditional biosafety guidance for laboratories. The manual emphasizes the use of good microbiological work practices, appropriate containment equipment, proper facility design, operation and maintenance, and administrative considerations to minimize the risk of worker injury or illness. In following these recommendations, the risk to the environment and surrounding community-at-large is also minimized

Brucellosis is an infectious disease caused by the bacteria of the genus Brucella These bacteria are primarily passed among animals, and they cause disease in many different vertebrates Various Brucella species affect sheep, goats, cattle, deer, elk, pigs, dogs, and several other animals Humans become infected by coming in contact witl animals or animal products that are contaminated with these bacteria

在前面的章节中,研究了许多基于web的应用程序的安全技术。这些技术都是用于处理 Internet上的安全问题。在网上,一些用户能够很容易地访问和操纵数据,而不需要任何事先 的验证。这些安全系统通过对非授权用户隐藏信息和在公用网上(如 Internet)建立虚拟的专 用网来工作。 然而,对访问数据的限制只是整个问题的一部分

第11章 SQL Server的安全性管理 11.1 SQL Server2000的安全机制 11.2管理服务器的安全性 11.3管理数据库的用户 11.4管理数据库的角色 11.5权限管理