Determining validity and identifying nonresponse bias in a survey requesting income data

Two procedures for validating incomes self-reported in ranges by University of Kentucky doctoral graduates, one comparing grouped data to income data collected by the National Academy of Sciences (1974) for the same year, 1973, the other comparing individual self-report data in a double-blind process to state income tax records, indicating that the self-report data were generally accurate. A check of respondents versus nonrespondents in various categories (sex, age, graduation year, Holland type, Biglan type) showed no difference in the proportion of response in any category. Comparison of nonrespondent income with respondent income in state income tax records revealed that nonrespondents averaged almost $3,500.00 less income during that year than did respondents. This finding held true across all categories but two.     

National attachment among Berlin and London head teachers: the explanatory impact of national identity,national pride and supranational attachment

The link between formal education and the formation of national attachment is widely acknowledged. Yet, research on teachers’ national attachment is still relatively rare. Based on a comparative analysis of survey data obtained from 281 Berlin and London state secondary school head teachers, this paper proposes a multivariate model in which notions of national identity, levels of national pride and levels of supranational attachment represent predictors of national attachment. The respective statistical analyses reveal striking cross‐national similarities in terms of the individual and joint explanatory impact of these predictors. Other findings concern correlations between different notions of Britishness/Germanness and levels of national attachment, the relationship between national and supranational attachment, and associations between national pride and national attachment.     

Ideas: A system for international data exchange and access for science

An operational prototype inhomogeneous distributed database system has been built to provide homogeneous access for researchers and managers of science policy to data on research projects held in three countries. The architecture is sufficiently general not only to accommodate additional countries and databases on research projects, but also to provide a general framework for other international collaborative projects aimed at the provision of information. The design exhibits an optimal compromise between sufficient data to satisfy a retrieval request and the minimal data for transmission to maintain the database.     

教你正确用(十九)

Once again, it's time to check the mail box and chat with our readers. Some of you asked good but also hard questions. Today, I'll share a few and hope that my answers are clear and won't confuse you.     

论入世后我国企业资本运营新趋势

党的“十六大”为国企改革提供了新的机遇，目前以外资为收购主体、战略收购为特征的重组方式，与几年前的资产重组相比，体现出高起点、大思路、大动作的特色，呈现出跨地区、跨部门、跨行业、跨所有制的特点。本对入世后我国企业资本运营新趋势进行了比较深入的分析，并就企业在进行资本运营过程中出现的常见问题提出了看法。     

世界性高校合并透析

在过去二三十年间，高校合并几乎是一个全球现象，它反映了各国高等院校面对全球化时代的挑战所作的因应性调整。通过对世界性高校合并的共同性和多样性的分析，提出几点思考。     

跨国公司并购中国装备制造业企业的公共政策选择

跨国公司并购中国装备制造业企业表现出了新的动向,在全球战略协同、市场竞争优势和技术溢价等因素的驱动下,跨国公司加快了对中国装备制造业骨干企业并购的步伐,并有可能产生“挤出”、“虚入”和“扩散”等三方面的负面效应。基于此,应对跨国公司并购行为的公共政策选择,要从产业政策、竞争政策和并购监管三个层面进行。     

利用派生成组性质相同的小断裂判断主断层的性质

同煤集团公司四台矿406采区建井期间首采工作面布置过程中,运输顺槽掘进至520m时,出现了一条落差超过煤层厚度的断层,落差和性质不明,只知道产状.在可利用的地质构造资料很少的情况下,仅利用本巷已接露的一组性质都为正断层、倾向近270°、倾角较大、落差很小的小断层组的性质、产状等要素来推断与之相距约15m左右的主断层的性质.然后提出用钻机向上打孔来探煤的方案,一次性地找到了煤层断失翼的位置,抢回了工期,节省了钻探费用.成功地解决了巷道在掘进过程中遇断的问题.     

Monitoring the ‘Enlaces’ educational computer network

The use of networks in education is experiencing world-wide growth. Many schools have taken advantage of the reduction of price in modems, the emergence of electronic bulletin boards and world-wide web pages with educational content, and the availability of software for public participation in networks. Nevertheless, little information is available about the quality and quantity of existing network traffic; information that would allow organizations, network project administrators and supporters, to evaluate its impact, know its usage, evolution and projections. This paper presents some of the traffic monitoring mechanisms presently in use in a Chilean educational network (the Enlaces Project), together with examples of the information collected through these mechanisms.     

合并大学校区分馆建设与发展面临的问题和对策

合并大学校区面临的主要问题是合并大学校园分散所带来的交通不便，以及资源较少、服务手段落后和管理不畅通。校区分馆首先应明确其功能定位，制定发展规划，在此基础上开展诸如文献资源配置等各项建设。在建设和发展中需要特别处理好总馆与分馆在不同时期的管理关系，注重建立数字化信息服务平台，拓宽服务手段，实行校区专业分馆的“学科馆员制”，据此构建合并大学较完善的全校性的文献服务保障体系。