1729名大学生人格特征（16PF测试结果）分析

根据华东师范大学1988年修订的卡特尔16种人格因素量表制成网络版,对某高校1729名大学生进行了测试。通过多方面的比较,发现不同性别、不同学科学生的人格因素存在差异。在各种影响因素中,社会文化环境及文化背景对学生性格的形成有着更为明显的影响。     

大学生自我表露的比较研究

目的:考察主动到心理咨询中心求助的大学生自我表露和孤独状况并与普通大学生的资料进行比较;考察来访者对咨询员的自我表露与其他目标人的表露之差异。结果发现:求询大学生与普通大学生的自我表露相比显著地低;求询大学生对咨询员的表露比其他目标人的表露显著地高;求询大学生的孤独感明显地高于普通大学生;心理咨询在大学生发展过程中起着重要的作用。     

企业改制与资产评估

企业改制是建立现代企业制度的必要途径。资产评估是企业改制中必不可少的重要环节。资产评估应明确评估目的、评估基准期、评估对象 ,掌握正确的评估方法和规范的评估程序。在企业改制中要特别注意设计稳妥的剥离方法 ,对非经营性资产和非经营性人员进行合理的剥离     

Improving the contributions of technology assessment to the health care system of the U.S.A.

Summary Based on 14 case studies of highly effective therapies and the reasons they succeeded less frequently than they could, we propose a variety of steps to improve the health care system of the U.S.A. Whatever proposal emerges from current national debates until innovations are shown to be safe and effective, they should not be supported; when slightly better technologies are much more expensive than other good ones we need to consider appropriate choices carefully; simplified billing and bookkeping would reduce our costs; when a technology is rapidly introduced cautionnary measures may be needed; tracking immunization and repairing their omissions requires a new system; educational programs such as seen effective in hypertension should be applied in other areas such as vaccination; in organ transplantation the nation should consider “presumed consent”; our payment system sometimes creates perverse incentives and therefore needs review; and the preferences of the public in allocation of health resources need to be discovered once the public is informed about the issues. Research supported by Andrew W. Mellon Foundation.     

Potential exposures and risks from beryllium-containing products.

Beryllium is the strongest of the lightweight metals. Used primarily in military applications prior to the end of the Cold War, beryllium is finding new applications in many commercial products, including computers, telecommunication equipment, and consumer and automotive electronics. The use of beryllium in nondefense consumer applications is of concern because beryllium is toxic. Inhalation of beryllium dust or vapor causes a chronic lung disease in some individuals at concentrations as low as 0.01 microg/m3 in air. As beryllium enters wider commerce, it is prudent to ask what risks this might present to the general public and to workers downstream of the beryllium materials industry. We address this question by evaluating the potential for beryllium exposure from the manufacturing, use, recycle, and disposal of beryllium-containing products. Combining a market study with a qualitative exposure analysis, we determine which beryllium applications and life cycle phases have the largest exposure potential. Our analysis suggests that use and maintenance of the most common types of beryllium-containing products do not result in any obvious exposures of concern, and that maintenance activities result in greater exposures than product use. Product disposal has potential to present significant individual risks, but uncertainties concerning current and future routes of product disposal make it difficult to be definitive. Overall, additional exposure and dose-response data are needed to evaluate both the health significance of many exposure scenarios, and the adequacy of existing regulations to protect workers and the public. Although public exposures to beryllium and public awareness and concern regarding beryllium risks are currently low, beryllium risks have psychometric qualities that may lead to rapidly heightened public concern.     

What to Do at Low Doses: A Bounding Approach for Economic Analysis

To quantify the health benefits of environmental policies, economists generally require estimates of the reduced probability of illness or death. For policies that reduce exposure to carcinogenic substances, these estimates traditionally have been obtained through the linear extrapolation of experimental dose-response data to low-exposure scenarios as described in the U.S. Environmental Protection Agency's Guidelines for Carcinogen Risk Assessment (1986). In response to evolving scientific knowledge, EPA proposed revisions to the guidelines in 1996. Under the proposed revisions, dose-response relationships would not be estimated for carcinogens thought to exhibit nonlinear modes of action. Such a change in cancer-risk assessment methods and outputs will likely have serious consequences for how benefit-cost analyses of policies aimed at reducing cancer risks are conducted. Any tendency for reduced quantification of effects in environmental risk assessments, such as those contemplated in the revisions to EPA's cancer-risk assessment guidelines, impedes the ability of economic analysts to respond to increasing calls for benefit-cost analysis. This article examines the implications for benefit-cost analysis of carcinogenic exposures of the proposed changes to the 1986 Guidelines and proposes an approach for bounding dose-response relationships when no biologically based models are available. In spite of the more limited quantitative information provided in a carcinogen risk assessment under the proposed revisions to the guidelines, we argue that reasonable bounds on dose-response relationships can be estimated for low-level exposures to nonlinear carcinogens. This approach yields estimates of reduced illness for use in a benefit-cost analysis while incorporating evidence of nonlinearities in the dose-response relationship. As an illustration, the bounding approach is applied to the case of chloroform exposure.     

21世纪高校图书馆的读者服务

本文从职业道德、业务素质、服务方式三个方面讨论高校图书馆的读者服务工作。提出了如何加强职业道德建设，提高图书馆员业务素质，更新信息服务方式。     

会计服务业走向国际化的发展策略

为了更好地与国际惯例协调,提高会计服务业的竞争力和整体水平,会计服务业应充分利用WTO有关协定条款,有计划地逐步开放会计市场.正确认识WTO对会计行业的制度性要求,在合理、客观、公正的前提下,制定我国会计服务业切实有效的发展规划和策略,制定适合我国国情、符合我国会计服务业发展要求的规章制度,深化会计师事务所改革,加强国际市场竞争能力,促进会计服务业的稳定发展.     

转轨期间财政转移支付制度的区域均衡效应

政府实行财政转移支付制度有多重目标:实现纵向平衡和横向平衡、矫正外溢性及其他经济政治目标。规范的转移支付制度的终极目标追求的是区域间财政能力或公共服务水平均等化。我国现行政府间转移支付制度虽然在实现纵向平衡方面有明显成就,过渡期转移支付办法在一定程度上也有利于区域间财政能力的均衡,但总体而言,从设计到实施,在矫正区域间的横向均衡方面缺乏成效,没能有效地控制区域间财政能力差距的进一步扩大。要进一步发挥其区域均衡效应,必须进行转移支付制度的调整和创新。     

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).