SAT SCORES AND AMERICAN STATES: SEEKING FOR USEFUL MEANING

Despite difficulties, states frequently seek to compare their test performance with that of other states, or with the published national norms. All states have some students taking the Scholastic Aptitude Test (SAT) exams for college admissions, but because the numbers vary widely, when the state means are made public by the College Boards, there is debate about their interpretation. Here the 50 state SAT means are the criterion in a multivariate model, together with the state variables of percent taking the SATs (very influential), percent of minority in the state, average income, unemployment rate, and per pupil expenditure. Regression is analyzed (without expenditure) to examine the state residuals compared with the "expected" scores. And briefly noted is the difficulty of using alternative tests for such comparisons, as these are currently normed, selected, and used.     

试析排球比赛中的临场意识

现代排球运动对运动员提出了更高的要求。它不仅需要运动员具备有形的技术，如技术战术和身体素质，同时需要无形的“技术”，如临场意识，心理素质和场上作风等。本文就运动员在比赛中的进攻、防守、拦网、传球、保护和战术意识进行了分析、探讨，试图能引起广大排球教练员、运动员在训练和比赛中的重视，从而有效地提高排球运动技术水平。     

乒乓球运动员的心理素质训练

本文针对运动员在比赛中出现的不正常状况,即强大的技术实力,在比赛场上却表现出低能的失败战绩,关键因素是心理训练的手段方法差,导致成为训练时如一条龙、比赛场上是一条虫现象。     

Internet网的开发利用

本文例举Ｉｎｔｅｒｎｅｔ网在国外的十种应用，详细地讨论了在应用Ｉｎｔｅｒｎｅｔ网的过程中面临的问题及其解决途径（包括防火墙，Ｉｎｔｅｒｎｅｔ网内容选择平台等）。最后提出几点在我国大力开发利用Ｉｎｔｅｒｎｅｔ网的几点建议     

The need for administrative know-how in libraries

The need for administrative know-how in libraries is great. Problems of administration in libraries do not differ significantly from those in other types of organizations. It behooves librarians to be aware of modern management theory, as developed and tested in the environment of business, and to adopt such useful tools as operations analysis and the systems approach to problems in the library environment.