Selection devices for user of an electronic encyclopedia: An empirical comparison of four possibilities

This study measured the speed, error rates, and subjective evaluation of arrow-jump keys, a jump-mouse, number keys, and a touch screen in an interactive encyclopedia. A summary of previous studies comparing selection devices and strategies is presented to provide the background for this study. We found the touch screen to be the fastest in time, the least accurate but the overall favorite of the participants. The results are discussed and improvements are suggested accordingly.     

《国际标准书目著录》及其最新发展

《国际标准书目著录》是国际图联主持制订的一套关于文献著录的国际标准,自20世纪70年代产生以来,一直对世界各国编目工作的标准化产生着巨大作用.本文介绍《国际标准书目著录》的历史、现状、修订情况及其在中国的传播,并重点分析某些有待讨论的问题和今后发展的趋势.参考文献6.     

Helping Students Develop Statistical Reasoning: Implementing a Statistical Reasoning Learning Environment

This article describes a model for an interactive, introductory secondary‐ or tertiary‐level statistics course that is designed to develop students' statistical reasoning. This model is called a ‘Statistical Reasoning Learning Environment’ and is built on the constructivist theory of learning.     

Dynamics of impulsive neutral-type BAM neural networks

In this letter, the existence and the global exponential stability of piecewise pseudo almost periodic solutions (PAP_T) for bidirectional associative memory neural networks (BAMNNs) with time-varying delay in leakage (or forgetting) terms and impulsive are investigated by applying contraction mapping fixed point theorem, the exponential dichotomy of linear differential equations and differential inequality techniques. Furthermore, we give an explanatory example to illustrate the efficiency of the theoretical predictions.     

‘What a setting for a mystery’: Yaddo, the Yaddo records, and the memory of place

‘Yaddo’, recalled composer Aaron Copland, ‘became so much a part of my life that I tend to forget how strange the name sounds to those not familiar with it.’ By its very delineation, vagary of purpose, and posture of cloistered withdrawal, Yaddo is defined by a meticulously cultivated and carefully guarded tradition of community and cultural identity; one that was carefully preserved (and, in turn was informed by) the formation of an archive. My point of query centers on the particular consequences of the bond between historical trace and physical place being severed (as perhaps it always must be) when the very materiality that informs an institution’s ‘memory’ is irrevocably distanced.