A study on the Web intelligence

This paper surveys important aspects of Web Intelligence (WI). WI explores the fundamental roles as well as practical impacts of Artificial Intelligence (AI) and advanced Information Technology (IT) on the next generation of Web - related products, systens, and activities. As a direction for scientific research and devlopment,WI can be extremely beneficial for the field of Artificial Intelligence in Education (AIED). This paper covers these issues only very briefly. It focuses more on other issues in WI, such as intelligent Web services, and semantic web, and proposes how to use them as basis for tackling new and challenging research problems in AIED.     

韩国的全球化和行政改革

本文回顾了1997年经济危机后韩国政府采取的改革方案,并做出结论:与普遍的看法相反,韩国政府的大部分改革方案并不是基于新公共管理系统(NPM)的.NPM倡导的打破常规的概念是要把官僚主义者从政府内部的束缚中解放出来,然而韩国政府的改革目标却指向加强官僚政治的内部控制.另一个结论是:以NPM为导向的改革方案不适合韩国政府,因为韩国缺少成功实施NPM方案所应具备的先决条件,如基于规则的政府和充满活力的市场.本文强调了加强官僚政治外部控制机制的重要性.体制僵化、腐败、生产力低下这样的问题长期困扰韩国政府,这些问题不能通过采用NPM所建议的市场原则来解决.因此,本文的结论是:新统治理论是根除这些问题的更为行之有效的方法.     

韩国大学IT结构的发展

具有战略意义的信息系统会给一个组织带来极大的机遇,使其在执行商业计划和实现商业目标时获得极具竞争力的优势.大学信息系统始于最初的计算机应用,后来扩展到管理和教育信息系统,直至全方位的概念.通过实际分析和案例补充,当前的研究工作谨慎地选择了三所大学,主要基于其已经承担了从1995到2001年信息系统计划过程.而这三所学校可以从信息产业系统结构的三个组成部分(即信息结构、基结构和信息管理结构)进行比照.这三个系统领域涵盖了信息产业结构的发展,并影响着大学信息化的进程.作为满足当前客户需求的执行计划的一部分,市场中的一流大学通过获得教育和研究进步及管理效率化,将信息化作为获得更高竞争力的阶梯是显然的.研究分析结果显示,薄弱环节反映在信息管理结构上.由此,对于大学职员、管理者和教授而言,清楚信息系统的成功执行和维护的意义是至关重要的.我们的研究一定可以成为未来大学信息化工程的催化剂.     

Serotonin and 5-hydroxyindoleacetic acid concentrations in individual hypothalamic nuclei and other brain areas of rat

Summary Serotonin and 5-hydroxyindoleacetic acid (5-HIAA) were measured in individual nuclei of rat hypothalamus and other brain areas using HPLC with electrochemical detection. 5-HIAA levels were first demonstrated in hypothalamic and some discrete brain areas. The 5-HIAA/5-HT ratio was highest in the n. caudatus putamen, high in the n. ventromedialis and lowest in the n. suprachiasmaticus.     

Role of lactone ring of aflatoxin B1 in toxicity and mutagenicity

Cleavage of the lactone ring of aflatoxin B1 results in a nonfluorescent compound that has greatly reduced biological activity. Mutagenicity, as measured by the Ames test, is reduced 450-fold compared to that of B1, and toxicity, as measured by the chick embryo test, is reduced 18-fold.     

Role of lactone ring of aflatoxin B1 in toxicity and mutagenicity

Summary Cleavage of the lactone ring of aflatoxin B₁ results in a nonfluorescent compound that has greatly reduced biological activity. Mutagenicity, as measured by the Ames test, is reduced 450-fold compared to that of B₁, and toxicity, as measured by the chick embryo test, is reduced 18-fold.