论中国加入WTO后高校图书馆面临的挑战

文章着重论述了中国在加入WTO后 ,高校图书馆面临的机遇与挑战。以及高校图书馆应采取的相应措施和今后努力发展的方向     

对网络环境下高校德育双主体性的思考

信息技术的飞速发展 ,带来了全球信息资源不可逆转的网络化发展趋势 ,对高校德育工作提出了严峻挑战。在网络环境下 ,高校德育呈现双主体性特点 ,即教育者作为实施德育和组织德育活动的主体 ,大学生作为德育活动的主体。高校德育双主体性的凸现 ,要求高校德育转变德育观念 ,调整德育目标 ,创新德育方法     

核准制IPO定价实证分析

本文用信息经济学的理论和计量经济学的实证分析方法研究了我国核准制下的新股定价问题 ,指出市场主体决策时的信息差异是造成新股发行价和上市价相背离的主要原因 ,并构建多元回归模型对这一假设进行了检验。     

论公司法上的自我交易

对于自我交易,各国公司立法确立了比较完备的实体规规和相应有效的救济程序,而我国现行的《公司法》只是在第61条第2款作了原则性的禁止规定,缺乏可操作性。鉴于现有立法之不足,通过对各国关于自我交易规定的比较研究,试图确立符合法理的实体和程序规则,使得我国公司法上的自我交易问题得到有效解决。     

Dose-Response and Risk Assessment of Airborne Hexavalent Chromium and Lung Cancer Mortality

This study evaluates the dose-response relationship for inhalation exposure to hexavalent chromium [Cr(VI)] and lung cancer mortality for workers of a chromate production facility, and provides estimates of the carcinogenic potency. The data were analyzed using relative risk and additive risk dose-response models implemented with both Poisson and Cox regression. Potential confounding by birth cohort and smoking prevalence were also assessed. Lifetime cumulative exposure and highest monthly exposure were the dose metrics evaluated. The estimated lifetime additional risk of lung cancer mortality associated with 45 years of occupational exposure to 1 microg/m3 Cr(VI) (occupational exposure unit risk) was 0.00205 (90%CI: 0.00134, 0.00291) for the relative risk model and 0.00216 (90%CI: 0.00143, 0.00302) for the additive risk model assuming a linear dose response for cumulative exposure with a five-year lag. Extrapolating these findings to a continuous (e.g., environmental) exposure scenario yielded an environmental unit risk of 0.00978 (90%CI: 0.00640, 0.0138) for the relative risk model [e.g., a cancer slope factor of 34 (mg/kg-day)-1] and 0.0125 (90%CI: 0.00833, 0.0175) for the additive risk model. The relative risk model is preferred because it is more consistent with the expected trend for lung cancer risk with age. Based on statistical tests for exposure-related trend, there was no statistically significant increased lung cancer risk below lifetime cumulative occupational exposures of 1.0 mg-yr/m3, and no excess risk for workers whose highest average monthly exposure did not exceed the current Permissible Exposure Limit (52 microg/m3). It is acknowledged that this study had limited power to detect increases at these low exposure levels. These cancer potency estimates are comparable to those developed by U.S. regulatory agencies and should be useful for assessing the potential cancer hazard associated with inhaled Cr(VI).     

Valuation of childhood risk reduction: the importance of age, risk preferences, and perspective.

This article explores two problems analysts face in determining how to estimate values for children's health and safety risk reductions. The first addresses the question: Do willingness‐to‐pay estimates for health risk changes differ across children and adults and, if so, how? To answer this question, the article first examines the potential effects of age and risk preferences on willingness to pay. A summary of the literature reporting empirical evidence of differences between willingness to pay for adult health and safety risk reductions and willingness to pay for health and safety risk reductions in children is also provided. The second dimension of the problem is a more fundamental issue: Whose perspective is relevant when valuing children's health effects—society's, children's, adults‐as‐children, or parents'? Each perspective is considered, followed ultimately by the conclusion that adopting a parental perspective through an intrahousehold allocation model seems closest to meeting the needs of the estimation problem at hand. A policy example in which the choice of perspective affects the outcome of a regulatory benefit‐cost analysis rounds out the article and emphasizes the importance of perspective.     

On calculating the fisher information in order statistics

This article gives a simple result for the expression of the Fisher information in order statistics. This result enables us to calculate easily the Fisher information in any set of order statistics whose details have been known to be messy and complicated. We consider here its application in the optimal spacing problem where the exact Fisher information in order statistics has been approximated with the asymptotic information or the reciprocal of the variance of a suitable estimator. This work was supported by Korea Research Foundation Grant(KRF-2000-015-DP0056)     

一种框架支持的企业体系结构开发过程分析

企业体系结构是近年来国外学术和技术领域兴起的一个研究热点.本文介绍了企业体系结构的研究背景,在此基础上进一步分析了企业体系结构、企业体系结构框架及其他相关概念的内涵和相互联系,给出了在企业体系框架指导下开发企业体系结构的一般过程.     

微服私访:作为一种社会控制的官方民间法

无论在中国古代还是当下,微服私访现象都较为常见。微服私访是决策者借助被访者的信任,为夺回真实信息控制权所做的一种个人努力,是一种实现非正式社会控制的官方民间法。     

对降低中国农业生产风险的方式探讨

农业生产领域因其要受气候条件、自然灾害、技术的改变、信息的不完全、国家政策的变动,有着不同于其他行业的特殊风险性,而我国农户大多又是风险规避者,所以,如何降低农业生产中的风险,及如何看待降低风险的方式在中国的实效性问题,成为目前解决“三农”问题关键所在。